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OpenCloudOS-Kernel/net/ipv6/raw.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* RAW sockets for IPv6
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
* Linux INET6 implementation
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*
* Authors:
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
* Pedro Roque <roque@di.fc.ul.pt>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*
* Adapted from linux/net/ipv4/raw.c
*
* Fixes:
* Hideaki YOSHIFUJI : sin6_scope_id support
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
* YOSHIFUJI,H.@USAGI : raw checksum (RFC2292(bis) compliance)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
* Kazunori MIYAZAWA @USAGI: change process style to use ip6_append_data
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
#include <linux/slab.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <linux/sockios.h>
#include <linux/net.h>
#include <linux/in6.h>
#include <linux/netdevice.h>
#include <linux/if_arp.h>
#include <linux/icmpv6.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv6.h>
[IP]: Simplify and consolidate MSG_PEEK error handling When a packet is obtained from skb_recv_datagram with MSG_PEEK enabled it is left on the socket receive queue. This means that when we detect a checksum error we have to be careful when trying to free the packet as someone could have dequeued it in the time being. Currently this delicate logic is duplicated three times between UDPv4, UDPv6 and RAWv6. This patch moves them into a one place and simplifies the code somewhat. This is based on a suggestion by Eric Dumazet. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-14 15:16:37 +08:00
#include <linux/skbuff.h>
net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-04 09:59:32 +08:00
#include <linux/compat.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <asm/uaccess.h>
#include <asm/ioctls.h>
[NET]: Make /proc/net per network namespace This patch makes /proc/net per network namespace. It modifies the global variables proc_net and proc_net_stat to be per network namespace. The proc_net file helpers are modified to take a network namespace argument, and all of their callers are fixed to pass &init_net for that argument. This ensures that all of the /proc/net files are only visible and usable in the initial network namespace until the code behind them has been updated to be handle multiple network namespaces. Making /proc/net per namespace is necessary as at least some files in /proc/net depend upon the set of network devices which is per network namespace, and even more files in /proc/net have contents that are relevant to a single network namespace. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-12 18:01:34 +08:00
#include <net/net_namespace.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <net/ip.h>
#include <net/sock.h>
#include <net/snmp.h>
#include <net/ipv6.h>
#include <net/ndisc.h>
#include <net/protocol.h>
#include <net/ip6_route.h>
#include <net/ip6_checksum.h>
#include <net/addrconf.h>
#include <net/transp_v6.h>
#include <net/udp.h>
#include <net/inet_common.h>
[TCP]: Move the tcp sock states to net/tcp_states.h Lots of places just needs the states, not even linux/tcp.h, where this enum was, needs it. This speeds up development of the refactorings as less sources are rebuilt when things get moved from net/tcp.h. Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-10 11:08:28 +08:00
#include <net/tcp_states.h>
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-30 00:23:10 +08:00
#if IS_ENABLED(CONFIG_IPV6_MIP6)
[IPV6] MIP6: Add receiving mobility header functions through raw socket. Like ICMPv6, mobility header is handled through raw socket. In inbound case, check only whether ICMPv6 error should be sent as a reply or not by kernel. Based on MIPL2 kernel patch. This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi> This patch was also written by: Antti Tuominen <anttit@tcs.hut.fi> Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24 11:35:31 +08:00
#include <net/mip6.h>
#endif
[IPV6] MROUTE: Support multicast forwarding. Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-03 08:22:53 +08:00
#include <linux/mroute6.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[RAW]: Introduce raw_hashinfo structure The ipv4/raw.c and ipv6/raw.c contain many common code (most of which is proc interface) which can be consolidated. Most of the places to consolidate deal with the raw sockets hashtable, so introduce a struct raw_hashinfo which describes the raw sockets hash. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:36:45 +08:00
#include <net/raw.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <net/rawv6.h>
#include <net/xfrm.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules These files are non modular, but need to export symbols using the macros now living in export.h -- call out the include so that things won't break when we remove the implicit presence of module.h from everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-07-15 23:47:34 +08:00
#include <linux/export.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
icmpv6_filter: allow ICMPv6 messages with bodies < 4 bytes By using sizeof(_hdr), net/ipv6/raw.c:icmpv6_filter implicitly assumes that any valid ICMPv6 message is at least eight bytes long, i.e., that the message body is at least four bytes. The DIS message of RPL (RFC 6550 section 6.2, from the 6LoWPAN world), has a minimum length of only six bytes, and is thus blocked by icmpv6_filter. RFC 4443 seems to allow even a zero-sized body, making the minimum allowable message size four bytes. Signed-off-by: Werner Almesberger <werner@almesberger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-02 21:51:34 +08:00
#define ICMPV6_HDRLEN 4 /* ICMPv6 header, RFC 4443 Section 2.1 */
[RAW]: Introduce raw_hashinfo structure The ipv4/raw.c and ipv6/raw.c contain many common code (most of which is proc interface) which can be consolidated. Most of the places to consolidate deal with the raw sockets hashtable, so introduce a struct raw_hashinfo which describes the raw sockets hash. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:36:45 +08:00
static struct raw_hashinfo raw_v6_hashinfo = {
[NET]: Add debugging names to __RW_LOCK_UNLOCKED macros. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-18 15:59:23 +08:00
.lock = __RW_LOCK_UNLOCKED(raw_v6_hashinfo.lock),
[RAW]: Introduce raw_hashinfo structure The ipv4/raw.c and ipv6/raw.c contain many common code (most of which is proc interface) which can be consolidated. Most of the places to consolidate deal with the raw sockets hashtable, so introduce a struct raw_hashinfo which describes the raw sockets hash. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:36:45 +08:00
};
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[NETNS][RAW]: Make ipv[46] raw sockets lookup namespaces aware. This requires just to pass the appropriate struct net pointer into __raw_v[46]_lookup and skip sockets that do not belong to a needed namespace. The proper net is get from skb->dev in all the cases. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:35:31 +08:00
static struct sock *__raw_v6_lookup(struct net *net, struct sock *sk,
inet: constify ip headers and in6_addr Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22 12:53:02 +08:00
unsigned short num, const struct in6_addr *loc_addr,
const struct in6_addr *rmt_addr, int dif)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
ipv6: bool/const conversions phase2 Mostly bool conversions, some inline removals and const additions. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-19 02:57:34 +08:00
bool is_multicast = ipv6_addr_is_multicast(loc_addr);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-28 09:06:00 +08:00
sk_for_each_from(sk)
inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-15 14:30:45 +08:00
if (inet_sk(sk)->inet_num == num) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[NET] NETNS: Omit namespace comparision without CONFIG_NET_NS. Introduce an inline net_eq() to compare two namespaces. Without CONFIG_NET_NS, since no namespace other than &init_net exists, it is always 1. We do not need to convert 1) inline vs inline and 2) inline vs &init_net comparisons. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 02:57:35 +08:00
if (!net_eq(sock_net(sk), net))
[NETNS][RAW]: Make ipv[46] raw sockets lookup namespaces aware. This requires just to pass the appropriate struct net pointer into __raw_v[46]_lookup and skip sockets that do not belong to a needed namespace. The proper net is get from skb->dev in all the cases. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:35:31 +08:00
continue;
ipv6: make lookups simpler and faster TCP listener refactoring, part 4 : To speed up inet lookups, we moved IPv4 addresses from inet to struct sock_common Now is time to do the same for IPv6, because it permits us to have fast lookups for all kind of sockets, including upcoming SYN_RECV. Getting IPv6 addresses in TCP lookups currently requires two extra cache lines, plus a dereference (and memory stall). inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6 This patch is way bigger than its IPv4 counter part, because for IPv4, we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6, it's not doable easily. inet6_sk(sk)->daddr becomes sk->sk_v6_daddr inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr at the same offset. We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic macro. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-04 06:42:29 +08:00
if (!ipv6_addr_any(&sk->sk_v6_daddr) &&
!ipv6_addr_equal(&sk->sk_v6_daddr, rmt_addr))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
continue;
[IPV6]: Check interface bindings on IPv6 raw socket reception Take account of whether a socket is bound to a particular device when selecting an IPv6 raw socket to receive a packet. Also perform this check when receiving IPv6 packets with router alert options. Signed-off-by: Andrew McDonald <andrew@mcdonald.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-10 10:44:42 +08:00
if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif)
continue;
ipv6: make lookups simpler and faster TCP listener refactoring, part 4 : To speed up inet lookups, we moved IPv4 addresses from inet to struct sock_common Now is time to do the same for IPv6, because it permits us to have fast lookups for all kind of sockets, including upcoming SYN_RECV. Getting IPv6 addresses in TCP lookups currently requires two extra cache lines, plus a dereference (and memory stall). inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6 This patch is way bigger than its IPv4 counter part, because for IPv4, we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6, it's not doable easily. inet6_sk(sk)->daddr becomes sk->sk_v6_daddr inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr at the same offset. We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic macro. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-04 06:42:29 +08:00
if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr)) {
if (ipv6_addr_equal(&sk->sk_v6_rcv_saddr, loc_addr))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
goto found;
if (is_multicast &&
inet6_mc_check(sk, loc_addr, rmt_addr))
goto found;
continue;
}
goto found;
}
sk = NULL;
found:
return sk;
}
/*
* 0 - deliver
* 1 - block
*/
ipv6: raw: fix icmpv6_filter() icmpv6_filter() should not modify its input, or else its caller would need to recompute ipv6_hdr() if skb->head is reallocated. Use skb_header_pointer() instead of pskb_may_pull() and change the prototype to make clear both sk and skb are const. Also, if icmpv6 header cannot be found, do not deliver the packet, as we do in IPv4. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-25 15:03:40 +08:00
static int icmpv6_filter(const struct sock *sk, const struct sk_buff *skb)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
icmpv6_filter: fix "_hdr" incorrectly being a pointer "_hdr" should hold the ICMPv6 header while "hdr" is the pointer to it. This worked by accident. Signed-off-by: Werner Almesberger <werner@almesberger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-02 21:51:19 +08:00
struct icmp6hdr _hdr;
ipv6: raw: fix icmpv6_filter() icmpv6_filter() should not modify its input, or else its caller would need to recompute ipv6_hdr() if skb->head is reallocated. Use skb_header_pointer() instead of pskb_may_pull() and change the prototype to make clear both sk and skb are const. Also, if icmpv6 header cannot be found, do not deliver the packet, as we do in IPv4. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-25 15:03:40 +08:00
const struct icmp6hdr *hdr;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
icmpv6_filter: allow ICMPv6 messages with bodies < 4 bytes By using sizeof(_hdr), net/ipv6/raw.c:icmpv6_filter implicitly assumes that any valid ICMPv6 message is at least eight bytes long, i.e., that the message body is at least four bytes. The DIS message of RPL (RFC 6550 section 6.2, from the 6LoWPAN world), has a minimum length of only six bytes, and is thus blocked by icmpv6_filter. RFC 4443 seems to allow even a zero-sized body, making the minimum allowable message size four bytes. Signed-off-by: Werner Almesberger <werner@almesberger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-02 21:51:34 +08:00
/* We require only the four bytes of the ICMPv6 header, not any
* additional bytes of message body in "struct icmp6hdr".
*/
ipv6: raw: fix icmpv6_filter() icmpv6_filter() should not modify its input, or else its caller would need to recompute ipv6_hdr() if skb->head is reallocated. Use skb_header_pointer() instead of pskb_may_pull() and change the prototype to make clear both sk and skb are const. Also, if icmpv6 header cannot be found, do not deliver the packet, as we do in IPv4. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-25 15:03:40 +08:00
hdr = skb_header_pointer(skb, skb_transport_offset(skb),
icmpv6_filter: allow ICMPv6 messages with bodies < 4 bytes By using sizeof(_hdr), net/ipv6/raw.c:icmpv6_filter implicitly assumes that any valid ICMPv6 message is at least eight bytes long, i.e., that the message body is at least four bytes. The DIS message of RPL (RFC 6550 section 6.2, from the 6LoWPAN world), has a minimum length of only six bytes, and is thus blocked by icmpv6_filter. RFC 4443 seems to allow even a zero-sized body, making the minimum allowable message size four bytes. Signed-off-by: Werner Almesberger <werner@almesberger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-02 21:51:34 +08:00
ICMPV6_HDRLEN, &_hdr);
ipv6: raw: fix icmpv6_filter() icmpv6_filter() should not modify its input, or else its caller would need to recompute ipv6_hdr() if skb->head is reallocated. Use skb_header_pointer() instead of pskb_may_pull() and change the prototype to make clear both sk and skb are const. Also, if icmpv6 header cannot be found, do not deliver the packet, as we do in IPv4. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-25 15:03:40 +08:00
if (hdr) {
const __u32 *data = &raw6_sk(sk)->filter.data[0];
unsigned int type = hdr->icmp6_type;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: raw: fix icmpv6_filter() icmpv6_filter() should not modify its input, or else its caller would need to recompute ipv6_hdr() if skb->head is reallocated. Use skb_header_pointer() instead of pskb_may_pull() and change the prototype to make clear both sk and skb are const. Also, if icmpv6 header cannot be found, do not deliver the packet, as we do in IPv4. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-25 15:03:40 +08:00
return (data[type >> 5] & (1U << (type & 31))) != 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
ipv6: raw: fix icmpv6_filter() icmpv6_filter() should not modify its input, or else its caller would need to recompute ipv6_hdr() if skb->head is reallocated. Use skb_header_pointer() instead of pskb_may_pull() and change the prototype to make clear both sk and skb are const. Also, if icmpv6 header cannot be found, do not deliver the packet, as we do in IPv4. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-25 15:03:40 +08:00
return 1;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-30 00:23:10 +08:00
#if IS_ENABLED(CONFIG_IPV6_MIP6)
ipv6: raw: rcu annotations Remove sparse warnings, using a function typedef to be able to use __rcu annotation on mh_filter pointer. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-20 15:37:53 +08:00
typedef int mh_filter_t(struct sock *sock, struct sk_buff *skb);
[IPV6] MIP6: Loadable module support for MIPv6. This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-27 14:56:32 +08:00
ipv6: raw: rcu annotations Remove sparse warnings, using a function typedef to be able to use __rcu annotation on mh_filter pointer. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-20 15:37:53 +08:00
static mh_filter_t __rcu *mh_filter __read_mostly;
int rawv6_mh_filter_register(mh_filter_t filter)
[IPV6] MIP6: Loadable module support for MIPv6. This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-27 14:56:32 +08:00
{
net: reintroduce missing rcu_assign_pointer() calls commit a9b3cd7f32 (rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER) did a lot of incorrect changes, since it did a complete conversion of rcu_assign_pointer(x, y) to RCU_INIT_POINTER(x, y). We miss needed barriers, even on x86, when y is not NULL. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Stephen Hemminger <shemminger@vyatta.com> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-12 12:41:32 +08:00
rcu_assign_pointer(mh_filter, filter);
[IPV6] MIP6: Loadable module support for MIPv6. This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-27 14:56:32 +08:00
return 0;
}
EXPORT_SYMBOL(rawv6_mh_filter_register);
ipv6: raw: rcu annotations Remove sparse warnings, using a function typedef to be able to use __rcu annotation on mh_filter pointer. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-20 15:37:53 +08:00
int rawv6_mh_filter_unregister(mh_filter_t filter)
[IPV6] MIP6: Loadable module support for MIPv6. This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-27 14:56:32 +08:00
{
rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER When assigning a NULL value to an RCU protected pointer, no barrier is needed. The rcu_assign_pointer, used to handle that but will soon change to not handle the special case. Convert all rcu_assign_pointer of NULL value. //smpl @@ expression P; @@ - rcu_assign_pointer(P, NULL) + RCU_INIT_POINTER(P, NULL) // </smpl> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-02 00:19:00 +08:00
RCU_INIT_POINTER(mh_filter, NULL);
[IPV6] MIP6: Loadable module support for MIPv6. This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-27 14:56:32 +08:00
synchronize_rcu();
return 0;
}
EXPORT_SYMBOL(rawv6_mh_filter_unregister);
#endif
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* demultiplex raw sockets.
* (should consider queueing the skb in the sock receive_queue
* without calling rawv6.c)
*
* Caller owns SKB so we must make clones.
*/
ipv6: bool/const conversions phase2 Mostly bool conversions, some inline removals and const additions. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-19 02:57:34 +08:00
static bool ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
inet: constify ip headers and in6_addr Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22 12:53:02 +08:00
const struct in6_addr *saddr;
const struct in6_addr *daddr;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct sock *sk;
ipv6: bool/const conversions phase2 Mostly bool conversions, some inline removals and const additions. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-19 02:57:34 +08:00
bool delivered = false;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
__u8 hash;
[NETNS][RAW]: Make ipv[46] raw sockets lookup namespaces aware. This requires just to pass the appropriate struct net pointer into __raw_v[46]_lookup and skip sockets that do not belong to a needed namespace. The proper net is get from skb->dev in all the cases. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:35:31 +08:00
struct net *net;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h Now the skb->nh union has just one member, .raw, i.e. it is just like the skb->mac union, strange, no? I'm just leaving it like that till the transport layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or ->mac_header_offset?), ditto for ->{h,nh}. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 08:54:47 +08:00
saddr = &ipv6_hdr(skb)->saddr;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
daddr = saddr + 1;
inet: Sanitize inet{,6} protocol demux. Don't pretend that inet_protos[] and inet6_protos[] are hashes, thay are just a straight arrays. Remove all unnecessary hash masking. Document MAX_INET_PROTOS. Use RAW_HTABLE_SIZE when appropriate. Reported-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20 09:56:21 +08:00
hash = nexthdr & (RAW_HTABLE_SIZE - 1);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[RAW]: Introduce raw_hashinfo structure The ipv4/raw.c and ipv6/raw.c contain many common code (most of which is proc interface) which can be consolidated. Most of the places to consolidate deal with the raw sockets hashtable, so introduce a struct raw_hashinfo which describes the raw sockets hash. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:36:45 +08:00
read_lock(&raw_v6_hashinfo.lock);
sk = sk_head(&raw_v6_hashinfo.ht[hash]);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (sk == NULL)
goto out;
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 20:47:49 +08:00
net = dev_net(skb->dev);
[NETNS][RAW]: Make ipv[46] raw sockets lookup namespaces aware. This requires just to pass the appropriate struct net pointer into __raw_v[46]_lookup and skip sockets that do not belong to a needed namespace. The proper net is get from skb->dev in all the cases. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:35:31 +08:00
sk = __raw_v6_lookup(net, sk, nexthdr, daddr, saddr, IP6CB(skb)->iif);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
while (sk) {
[IPV6] MIP6: Add receiving mobility header functions through raw socket. Like ICMPv6, mobility header is handled through raw socket. In inbound case, check only whether ICMPv6 error should be sent as a reply or not by kernel. Based on MIPL2 kernel patch. This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi> This patch was also written by: Antti Tuominen <anttit@tcs.hut.fi> Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24 11:35:31 +08:00
int filtered;
ipv6: bool/const conversions phase2 Mostly bool conversions, some inline removals and const additions. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-19 02:57:34 +08:00
delivered = true;
[IPV6] MIP6: Add receiving mobility header functions through raw socket. Like ICMPv6, mobility header is handled through raw socket. In inbound case, check only whether ICMPv6 error should be sent as a reply or not by kernel. Based on MIPL2 kernel patch. This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi> This patch was also written by: Antti Tuominen <anttit@tcs.hut.fi> Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24 11:35:31 +08:00
switch (nexthdr) {
case IPPROTO_ICMPV6:
filtered = icmpv6_filter(sk, skb);
break;
[IPV6] MIP6: Loadable module support for MIPv6. This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-27 14:56:32 +08:00
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-30 00:23:10 +08:00
#if IS_ENABLED(CONFIG_IPV6_MIP6)
[IPV6] MIP6: Add receiving mobility header functions through raw socket. Like ICMPv6, mobility header is handled through raw socket. In inbound case, check only whether ICMPv6 error should be sent as a reply or not by kernel. Based on MIPL2 kernel patch. This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi> This patch was also written by: Antti Tuominen <anttit@tcs.hut.fi> Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24 11:35:31 +08:00
case IPPROTO_MH:
[IPV6] MIP6: Loadable module support for MIPv6. This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-27 14:56:32 +08:00
{
[IPV6] MIP6: Add receiving mobility header functions through raw socket. Like ICMPv6, mobility header is handled through raw socket. In inbound case, check only whether ICMPv6 error should be sent as a reply or not by kernel. Based on MIPL2 kernel patch. This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi> This patch was also written by: Antti Tuominen <anttit@tcs.hut.fi> Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24 11:35:31 +08:00
/* XXX: To validate MH only once for each packet,
* this is placed here. It should be after checking
* xfrm policy, however it doesn't. The checking xfrm
* policy is placed in rawv6_rcv() because it is
* required for each socket.
*/
ipv6: raw: rcu annotations Remove sparse warnings, using a function typedef to be able to use __rcu annotation on mh_filter pointer. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-20 15:37:53 +08:00
mh_filter_t *filter;
[IPV6] MIP6: Loadable module support for MIPv6. This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-27 14:56:32 +08:00
filter = rcu_dereference(mh_filter);
ipv6: raw: rcu annotations Remove sparse warnings, using a function typedef to be able to use __rcu annotation on mh_filter pointer. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-20 15:37:53 +08:00
filtered = filter ? (*filter)(sk, skb) : 0;
[IPV6] MIP6: Add receiving mobility header functions through raw socket. Like ICMPv6, mobility header is handled through raw socket. In inbound case, check only whether ICMPv6 error should be sent as a reply or not by kernel. Based on MIPL2 kernel patch. This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi> This patch was also written by: Antti Tuominen <anttit@tcs.hut.fi> Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24 11:35:31 +08:00
break;
[IPV6] MIP6: Loadable module support for MIPv6. This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-27 14:56:32 +08:00
}
[IPV6] MIP6: Add receiving mobility header functions through raw socket. Like ICMPv6, mobility header is handled through raw socket. In inbound case, check only whether ICMPv6 error should be sent as a reply or not by kernel. Based on MIPL2 kernel patch. This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi> This patch was also written by: Antti Tuominen <anttit@tcs.hut.fi> Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24 11:35:31 +08:00
#endif
default:
filtered = 0;
break;
}
if (filtered < 0)
break;
if (filtered == 0) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
/* Not releasing hash table! */
[NETFILTER]: Add nf_conntrack subsystem. The existing connection tracking subsystem in netfilter can only handle ipv4. There were basically two choices present to add connection tracking support for ipv6. We could either duplicate all of the ipv4 connection tracking code into an ipv6 counterpart, or (the choice taken by these patches) we could design a generic layer that could handle both ipv4 and ipv6 and thus requiring only one sub-protocol (TCP, UDP, etc.) connection tracking helper module to be written. In fact nf_conntrack is capable of working with any layer 3 protocol. The existing ipv4 specific conntrack code could also not deal with the pecularities of doing connection tracking on ipv6, which is also cured here. For example, these issues include: 1) ICMPv6 handling, which is used for neighbour discovery in ipv6 thus some messages such as these should not participate in connection tracking since effectively they are like ARP messages 2) fragmentation must be handled differently in ipv6, because the simplistic "defrag, connection track and NAT, refrag" (which the existing ipv4 connection tracking does) approach simply isn't feasible in ipv6 3) ipv6 extension header parsing must occur at the correct spots before and after connection tracking decisions, and there were no provisions for this in the existing connection tracking design 4) ipv6 has no need for stateful NAT The ipv4 specific conntrack layer is kept around, until all of the ipv4 specific conntrack helpers are ported over to nf_conntrack and it is feature complete. Once that occurs, the old conntrack stuff will get placed into the feature-removal-schedule and we will fully kill it off 6 months later. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-10 08:38:16 +08:00
if (clone) {
nf_reset(clone);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
rawv6_rcv(sk, clone);
[NETFILTER]: Add nf_conntrack subsystem. The existing connection tracking subsystem in netfilter can only handle ipv4. There were basically two choices present to add connection tracking support for ipv6. We could either duplicate all of the ipv4 connection tracking code into an ipv6 counterpart, or (the choice taken by these patches) we could design a generic layer that could handle both ipv4 and ipv6 and thus requiring only one sub-protocol (TCP, UDP, etc.) connection tracking helper module to be written. In fact nf_conntrack is capable of working with any layer 3 protocol. The existing ipv4 specific conntrack code could also not deal with the pecularities of doing connection tracking on ipv6, which is also cured here. For example, these issues include: 1) ICMPv6 handling, which is used for neighbour discovery in ipv6 thus some messages such as these should not participate in connection tracking since effectively they are like ARP messages 2) fragmentation must be handled differently in ipv6, because the simplistic "defrag, connection track and NAT, refrag" (which the existing ipv4 connection tracking does) approach simply isn't feasible in ipv6 3) ipv6 extension header parsing must occur at the correct spots before and after connection tracking decisions, and there were no provisions for this in the existing connection tracking design 4) ipv6 has no need for stateful NAT The ipv4 specific conntrack layer is kept around, until all of the ipv4 specific conntrack helpers are ported over to nf_conntrack and it is feature complete. Once that occurs, the old conntrack stuff will get placed into the feature-removal-schedule and we will fully kill it off 6 months later. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-10 08:38:16 +08:00
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[NETNS][RAW]: Make ipv[46] raw sockets lookup namespaces aware. This requires just to pass the appropriate struct net pointer into __raw_v[46]_lookup and skip sockets that do not belong to a needed namespace. The proper net is get from skb->dev in all the cases. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:35:31 +08:00
sk = __raw_v6_lookup(net, sk_next(sk), nexthdr, daddr, saddr,
[IPV6]: Repair Incoming Interface Handling for Raw Socket. Due to changes to enforce checking interface bindings, sockets did not see loopback packets bound for our local address on our interface. e.g.) When we ping6 fe80::1%eth0, skb->dev points loopback_dev while IP6CB(skb)->iif indicates eth0. This patch fixes the issue by using appropriate incoming interface, in the sense of scoping architecture. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-02 08:44:49 +08:00
IP6CB(skb)->iif);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
out:
[RAW]: Introduce raw_hashinfo structure The ipv4/raw.c and ipv6/raw.c contain many common code (most of which is proc interface) which can be consolidated. Most of the places to consolidate deal with the raw sockets hashtable, so introduce a struct raw_hashinfo which describes the raw sockets hash. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:36:45 +08:00
read_unlock(&raw_v6_hashinfo.lock);
[IPV4/6]: Check if packet was actually delivered to a raw socket to decide whether to send an ICMP unreachable Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-10 10:45:02 +08:00
return delivered;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
ipv6: bool/const conversions phase2 Mostly bool conversions, some inline removals and const additions. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-19 02:57:34 +08:00
bool raw6_local_deliver(struct sk_buff *skb, int nexthdr)
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
{
struct sock *raw_sk;
inet: Sanitize inet{,6} protocol demux. Don't pretend that inet_protos[] and inet6_protos[] are hashes, thay are just a straight arrays. Remove all unnecessary hash masking. Document MAX_INET_PROTOS. Use RAW_HTABLE_SIZE when appropriate. Reported-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20 09:56:21 +08:00
raw_sk = sk_head(&raw_v6_hashinfo.ht[nexthdr & (RAW_HTABLE_SIZE - 1)]);
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
if (raw_sk && !ipv6_raw_deliver(skb, nexthdr))
raw_sk = NULL;
return raw_sk != NULL;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* This cleans up af_inet6 a bit. -DaveM */
static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
struct sockaddr_in6 *addr = (struct sockaddr_in6 *) uaddr;
[IPV6]: Misc endianness annotations. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-15 12:56:00 +08:00
__be32 v4addr = 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
int addr_type;
int err;
if (addr_len < SIN6_LEN_RFC2133)
return -EINVAL;
addr_type = ipv6_addr_type(&addr->sin6_addr);
/* Raw sockets are IPv6 only */
if (addr_type == IPV6_ADDR_MAPPED)
ipv6: avoid dev_hold()/dev_put() in rawv6_bind() Using RCU helps not touching device refcount in rawv6_bind() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 15:01:17 +08:00
return -EADDRNOTAVAIL;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
lock_sock(sk);
err = -EINVAL;
if (sk->sk_state != TCP_CLOSE)
goto out;
ipv6: avoid dev_hold()/dev_put() in rawv6_bind() Using RCU helps not touching device refcount in rawv6_bind() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 15:01:17 +08:00
rcu_read_lock();
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* Check if the address belongs to the host. */
if (addr_type != IPV6_ADDR_ANY) {
struct net_device *dev = NULL;
ipv6: use newly introduced __ipv6_addr_needs_scope_id and ipv6_iface_scope_id This patch requires multicast interface-scoped addresses to supply a sin6_scope_id. Because the sin6_scope_id is now also correctly used in case of interface-scoped multicast traffic this enables one to use interface scoped addresses over interfaces which are not targeted by the default multicast route (the route has to be put there manually, though). getsockname() and getpeername() now return the correct sin6_scope_id in case of interface-local mc addresses. v2: a) rebased ontop of patch 1/4 (now uses ipv6_addr_props) v3: a) reverted changes for ipv6_addr_props v4: a) unchanged Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>dave Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 10:07:19 +08:00
if (__ipv6_addr_needs_scope_id(addr_type)) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (addr_len >= sizeof(struct sockaddr_in6) &&
addr->sin6_scope_id) {
/* Override any existing binding, if another
* one is supplied by user.
*/
sk->sk_bound_dev_if = addr->sin6_scope_id;
}
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* Binding to link-local address requires an interface */
if (!sk->sk_bound_dev_if)
ipv6: avoid dev_hold()/dev_put() in rawv6_bind() Using RCU helps not touching device refcount in rawv6_bind() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 15:01:17 +08:00
goto out_unlock;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: avoid dev_hold()/dev_put() in rawv6_bind() Using RCU helps not touching device refcount in rawv6_bind() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 15:01:17 +08:00
err = -ENODEV;
dev = dev_get_by_index_rcu(sock_net(sk),
sk->sk_bound_dev_if);
if (!dev)
goto out_unlock;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* ipv4 addr of the socket is invalid. Only the
* unspecified and mapped address have a v4 equivalent.
*/
v4addr = LOOPBACK4_IPV6;
if (!(addr_type & IPV6_ADDR_MULTICAST)) {
err = -EADDRNOTAVAIL;
[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. Introduce per-sock inlines: sock_net(), sock_net_set() and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 01:26:21 +08:00
if (!ipv6_chk_addr(sock_net(sk), &addr->sin6_addr,
[NETNS][IPV6]: inet6_addr - check ipv6 address per namespace When a new address is added, we must check if the new address does not already exists. This patch makes this check to be aware of a network namespace, so the check will look if the address already exists for the specified network namespace. While the addresses are browsed, the addresses which do not belong to the namespace are discarded. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-11 14:43:18 +08:00
dev, 0)) {
ipv6: avoid dev_hold()/dev_put() in rawv6_bind() Using RCU helps not touching device refcount in rawv6_bind() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 15:01:17 +08:00
goto out_unlock;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
}
}
inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-15 14:30:45 +08:00
inet->inet_rcv_saddr = inet->inet_saddr = v4addr;
ipv6: make lookups simpler and faster TCP listener refactoring, part 4 : To speed up inet lookups, we moved IPv4 addresses from inet to struct sock_common Now is time to do the same for IPv6, because it permits us to have fast lookups for all kind of sockets, including upcoming SYN_RECV. Getting IPv6 addresses in TCP lookups currently requires two extra cache lines, plus a dereference (and memory stall). inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6 This patch is way bigger than its IPv4 counter part, because for IPv4, we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6, it's not doable easily. inet6_sk(sk)->daddr becomes sk->sk_v6_daddr inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr at the same offset. We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic macro. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-04 06:42:29 +08:00
sk->sk_v6_rcv_saddr = addr->sin6_addr;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (!(addr_type & IPV6_ADDR_MULTICAST))
net: remove ipv6_addr_copy() C assignment can handle struct in6_addr copying. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-21 11:39:03 +08:00
np->saddr = addr->sin6_addr;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = 0;
ipv6: avoid dev_hold()/dev_put() in rawv6_bind() Using RCU helps not touching device refcount in rawv6_bind() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 15:01:17 +08:00
out_unlock:
rcu_read_unlock();
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out:
release_sock(sk);
return err;
}
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
static void rawv6_err(struct sock *sk, struct sk_buff *skb,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct inet6_skb_parm *opt,
ipv6: Use correct data types for ICMPv6 type and code Change all the code that deals directly with ICMPv6 type and code values to use u8 instead of a signed int as that's the actual data type. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-23 19:31:07 +08:00
u8 type, u8 code, int offset, __be32 info)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
int err;
int harderr;
/* Report error on raw socket, if:
1. User requested recverr.
2. Socket is connected (otherwise the error indication
is useless without recverr and error is hard.
*/
if (!np->recverr && sk->sk_state != TCP_ESTABLISHED)
return;
harderr = icmpv6_err_convert(type, code, &err);
ipv6: Handle PMTU in ICMP error handlers. One tricky issue on the ipv6 side vs. ipv4 is that the ICMP callouts to handle the error pass the 32-bit info cookie in network byte order whereas ipv4 passes it around in host byte order. Like the ipv4 side, we have two helper functions. One for when we have a socket context and one for when we do not. ip6ip6 tunnels are not handled here, because they handle PMTU events by essentially relaying another ICMP packet-too-big message back to the original sender. This patch allows us to get rid of rt6_do_pmtu_disc(). It handles all kinds of situations that simply cannot happen when we do the PMTU update directly using a fully resolved route. In fact, the "plen == 128" check in ip6_rt_update_pmtu() can very likely be removed or changed into a BUG_ON() check. We should never have a prefixed ipv6 route when we get there. Another piece of strange history here is that TCP and DCCP, unlike in ipv4, never invoke the update_pmtu() method from their ICMP error handlers. This is incredibly astonishing since this is the context where we have the most accurate context in which to make a PMTU update, namely we have a fully connected socket and associated cached socket route. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-16 05:54:11 +08:00
if (type == ICMPV6_PKT_TOOBIG) {
ip6_sk_update_pmtu(skb, sk, info);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
harderr = (np->pmtudisc == IPV6_PMTUDISC_DO);
ipv6: Handle PMTU in ICMP error handlers. One tricky issue on the ipv6 side vs. ipv4 is that the ICMP callouts to handle the error pass the 32-bit info cookie in network byte order whereas ipv4 passes it around in host byte order. Like the ipv4 side, we have two helper functions. One for when we have a socket context and one for when we do not. ip6ip6 tunnels are not handled here, because they handle PMTU events by essentially relaying another ICMP packet-too-big message back to the original sender. This patch allows us to get rid of rt6_do_pmtu_disc(). It handles all kinds of situations that simply cannot happen when we do the PMTU update directly using a fully resolved route. In fact, the "plen == 128" check in ip6_rt_update_pmtu() can very likely be removed or changed into a BUG_ON() check. We should never have a prefixed ipv6 route when we get there. Another piece of strange history here is that TCP and DCCP, unlike in ipv4, never invoke the update_pmtu() method from their ICMP error handlers. This is incredibly astonishing since this is the context where we have the most accurate context in which to make a PMTU update, namely we have a fully connected socket and associated cached socket route. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-16 05:54:11 +08:00
}
net: raw: do not report ICMP redirects to user space Redirect isn't an error condition, it should leave the error handler without touching the socket. Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-20 18:21:25 +08:00
if (type == NDISC_REDIRECT) {
ipv6: Add redirect support to all protocol icmp error handlers. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-12 15:25:15 +08:00
ip6_sk_redirect(skb, sk);
net: raw: do not report ICMP redirects to user space Redirect isn't an error condition, it should leave the error handler without touching the socket. Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-20 18:21:25 +08:00
return;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (np->recverr) {
u8 *payload = skb->data;
if (!inet->hdrincl)
payload += offset;
ipv6_icmp_error(sk, skb, err, 0, ntohl(info), payload);
}
if (np->recverr || harderr) {
sk->sk_err = err;
sk->sk_error_report(sk);
}
}
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
ipv6: Use correct data types for ICMPv6 type and code Change all the code that deals directly with ICMPv6 type and code values to use u8 instead of a signed int as that's the actual data type. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-23 19:31:07 +08:00
u8 type, u8 code, int inner_offset, __be32 info)
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
{
struct sock *sk;
int hash;
inet: constify ip headers and in6_addr Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22 12:53:02 +08:00
const struct in6_addr *saddr, *daddr;
[NETNS][RAW]: Make ipv[46] raw sockets lookup namespaces aware. This requires just to pass the appropriate struct net pointer into __raw_v[46]_lookup and skip sockets that do not belong to a needed namespace. The proper net is get from skb->dev in all the cases. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:35:31 +08:00
struct net *net;
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
[RAW]: Introduce raw_hashinfo structure The ipv4/raw.c and ipv6/raw.c contain many common code (most of which is proc interface) which can be consolidated. Most of the places to consolidate deal with the raw sockets hashtable, so introduce a struct raw_hashinfo which describes the raw sockets hash. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:36:45 +08:00
hash = nexthdr & (RAW_HTABLE_SIZE - 1);
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
[RAW]: Introduce raw_hashinfo structure The ipv4/raw.c and ipv6/raw.c contain many common code (most of which is proc interface) which can be consolidated. Most of the places to consolidate deal with the raw sockets hashtable, so introduce a struct raw_hashinfo which describes the raw sockets hash. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:36:45 +08:00
read_lock(&raw_v6_hashinfo.lock);
sk = sk_head(&raw_v6_hashinfo.ht[hash]);
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
if (sk != NULL) {
[IPV6]: Fix IPV6_RECVERR for connected raw sockets. Based on patch from Dmitry Butskoy <buc@odusz.so-cdu.ru>. Closes: 10437 Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-11 22:51:26 +08:00
/* Note: ipv6_hdr(skb) != skb->data */
inet: constify ip headers and in6_addr Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22 12:53:02 +08:00
const struct ipv6hdr *ip6h = (const struct ipv6hdr *)skb->data;
[IPV6]: Fix IPV6_RECVERR for connected raw sockets. Based on patch from Dmitry Butskoy <buc@odusz.so-cdu.ru>. Closes: 10437 Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-11 22:51:26 +08:00
saddr = &ip6h->saddr;
daddr = &ip6h->daddr;
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 20:47:49 +08:00
net = dev_net(skb->dev);
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
[NETNS][RAW]: Make ipv[46] raw sockets lookup namespaces aware. This requires just to pass the appropriate struct net pointer into __raw_v[46]_lookup and skip sockets that do not belong to a needed namespace. The proper net is get from skb->dev in all the cases. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:35:31 +08:00
while ((sk = __raw_v6_lookup(net, sk, nexthdr, saddr, daddr,
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
IP6CB(skb)->iif))) {
rawv6_err(sk, skb, NULL, type, code,
inner_offset, info);
sk = sk_next(sk);
}
}
[RAW]: Introduce raw_hashinfo structure The ipv4/raw.c and ipv6/raw.c contain many common code (most of which is proc interface) which can be consolidated. Most of the places to consolidate deal with the raw sockets hashtable, so introduce a struct raw_hashinfo which describes the raw sockets hash. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:36:45 +08:00
read_unlock(&raw_v6_hashinfo.lock);
[IPv6] RAW: Compact the API for the kernel Same as in the previous patch for ipv4, compact the API and hide hash table and rwlock inside the raw.c file. Plus fix some "bad" places from checkpatch.pl point of view (assignments inside if()). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:35:57 +08:00
}
net: cleanup some rcu_dereference_raw RCU api had been completed and rcu_access_pointer() or rcu_dereference_protected() are better than generic rcu_dereference_raw() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-12 03:30:52 +08:00
static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
net: cleanup some rcu_dereference_raw RCU api had been completed and rcu_access_pointer() or rcu_dereference_protected() are better than generic rcu_dereference_raw() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-12 03:30:52 +08:00
if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&
[NET]: Detect hardware rx checksum faults correctly Here is the patch that introduces the generic skb_checksum_complete which also checks for hardware RX checksum faults. If that happens, it'll call netdev_rx_csum_fault which currently prints out a stack trace with the device name. In future it can turn off RX checksum. I've converted every spot under net/ that does RX checksum checks to use skb_checksum_complete or __skb_checksum_complete with the exceptions of: * Those places where checksums are done bit by bit. These will call netdev_rx_csum_fault directly. * The following have not been completely checked/converted: ipmr ip_vs netfilter dccp This patch is based on patches and suggestions from Stephen Hemminger and David S. Miller. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-11 05:01:24 +08:00
skb_checksum_complete(skb)) {
[IPV6]: Add raw6 drops counter. Add raw drops counter for IPv6 in /proc/net/raw6 . Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-14 12:31:14 +08:00
atomic_inc(&sk->sk_drops);
[NET]: Detect hardware rx checksum faults correctly Here is the patch that introduces the generic skb_checksum_complete which also checks for hardware RX checksum faults. If that happens, it'll call netdev_rx_csum_fault which currently prints out a stack trace with the device name. In future it can turn off RX checksum. I've converted every spot under net/ that does RX checksum checks to use skb_checksum_complete or __skb_checksum_complete with the exceptions of: * Those places where checksums are done bit by bit. These will call netdev_rx_csum_fault directly. * The following have not been completely checked/converted: ipmr ip_vs netfilter dccp This patch is based on patches and suggestions from Stephen Hemminger and David S. Miller. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-11 05:01:24 +08:00
kfree_skb(skb);
ipv6: When we droped a packet, we should return NET_RX_DROP instead of 0 Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-30 05:06:51 +08:00
return NET_RX_DROP;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
/* Charge it to the socket. */
ipv4: PKTINFO doesnt need dst reference Le lundi 07 novembre 2011 à 15:33 +0100, Eric Dumazet a écrit : > At least, in recent kernels we dont change dst->refcnt in forwarding > patch (usinf NOREF skb->dst) > > One particular point is the atomic_inc(dst->refcnt) we have to perform > when queuing an UDP packet if socket asked PKTINFO stuff (for example a > typical DNS server has to setup this option) > > I have one patch somewhere that stores the information in skb->cb[] and > avoid the atomic_{inc|dec}(dst->refcnt). > OK I found it, I did some extra tests and believe its ready. [PATCH net-next] ipv4: IP_PKTINFO doesnt need dst reference When a socket uses IP_PKTINFO notifications, we currently force a dst reference for each received skb. Reader has to access dst to get needed information (rt_iif & rt_spec_dst) and must release dst reference. We also forced a dst reference if skb was put in socket backlog, even without IP_PKTINFO handling. This happens under stress/load. We can instead store the needed information in skb->cb[], so that only softirq handler really access dst, improving cache hit ratios. This removes two atomic operations per packet, and false sharing as well. On a benchmark using a mono threaded receiver (doing only recvmsg() calls), I can reach 720.000 pps instead of 570.000 pps. IP_PKTINFO is typically used by DNS servers, and any multihomed aware UDP application. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-09 15:24:35 +08:00
skb_dst_drop(skb);
if (sock_queue_rcv_skb(sk, skb) < 0) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
kfree_skb(skb);
ipv6: When we droped a packet, we should return NET_RX_DROP instead of 0 Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-30 05:06:51 +08:00
return NET_RX_DROP;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
return 0;
}
/*
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
* This is next to useless...
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
* if we demultiplex in network layer we don't need the extra call
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
* just to queue the skb...
* maybe we could have the network decide upon a hint if it
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
* should call raw_rcv for demultiplexing
*/
int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
{
struct inet_sock *inet = inet_sk(sk);
struct raw6_sock *rp = raw6_sk(sk);
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
[IPV6]: Add raw6 drops counter. Add raw drops counter for IPv6 in /proc/net/raw6 . Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-14 12:31:14 +08:00
atomic_inc(&sk->sk_drops);
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
kfree_skb(skb);
return NET_RX_DROP;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (!rp->checksum)
skb->ip_summed = CHECKSUM_UNNECESSARY;
[NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETE Replace CHECKSUM_HW by CHECKSUM_PARTIAL (for outgoing packets, whose checksum still needs to be completed) and CHECKSUM_COMPLETE (for incoming packets, device supplied full checksum). Patch originally from Herbert Xu, updated by myself for 2.6.18-rc3. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-30 07:44:56 +08:00
if (skb->ip_summed == CHECKSUM_COMPLETE) {
[SK_BUFF]: Introduce skb_network_header() For the places where we need a pointer to the network header, it is still legal to touch skb->nh.raw directly if just adding to, subtracting from or setting it to another layer header. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-11 11:50:43 +08:00
skb_postpull_rcsum(skb, skb_network_header(skb),
[SK_BUFF]: Introduce skb_network_header_len For the common sequence "skb->h.raw - skb->nh.raw", similar to skb->mac_len, that is precalculated tho, don't think we need to bloat skb with one more member, so just use this new helper, reducing the number of non-skbuff.h references to the layer headers even more. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-17 04:26:39 +08:00
skb_network_header_len(skb));
[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h Now the skb->nh union has just one member, .raw, i.e. it is just like the skb->mac union, strange, no? I'm just leaving it like that till the transport layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or ->mac_header_offset?), ditto for ->{h,nh}. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 08:54:47 +08:00
if (!csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
&ipv6_hdr(skb)->daddr,
inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-15 14:30:45 +08:00
skb->len, inet->inet_num, skb->csum))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
[NET]: Treat CHECKSUM_PARTIAL as CHECKSUM_UNNECESSARY When a transmitted packet is looped back directly, CHECKSUM_PARTIAL maps to the semantics of CHECKSUM_UNNECESSARY. Therefore we should treat it as such in the stack. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-10 02:59:39 +08:00
if (!skb_csum_unnecessary(skb))
[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h Now the skb->nh union has just one member, .raw, i.e. it is just like the skb->mac union, strange, no? I'm just leaving it like that till the transport layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or ->mac_header_offset?), ditto for ->{h,nh}. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 08:54:47 +08:00
skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
&ipv6_hdr(skb)->daddr,
skb->len,
inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-15 14:30:45 +08:00
inet->inet_num, 0));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (inet->hdrincl) {
[NET]: Detect hardware rx checksum faults correctly Here is the patch that introduces the generic skb_checksum_complete which also checks for hardware RX checksum faults. If that happens, it'll call netdev_rx_csum_fault which currently prints out a stack trace with the device name. In future it can turn off RX checksum. I've converted every spot under net/ that does RX checksum checks to use skb_checksum_complete or __skb_checksum_complete with the exceptions of: * Those places where checksums are done bit by bit. These will call netdev_rx_csum_fault directly. * The following have not been completely checked/converted: ipmr ip_vs netfilter dccp This patch is based on patches and suggestions from Stephen Hemminger and David S. Miller. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-11 05:01:24 +08:00
if (skb_checksum_complete(skb)) {
[IPV6]: Add raw6 drops counter. Add raw drops counter for IPv6 in /proc/net/raw6 . Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-14 12:31:14 +08:00
atomic_inc(&sk->sk_drops);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
kfree_skb(skb);
ipv6: When we droped a packet, we should return NET_RX_DROP instead of 0 Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-30 05:06:51 +08:00
return NET_RX_DROP;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
}
rawv6_rcv_skb(sk, skb);
return 0;
}
/*
* This should be easy, if there is something there
* we return it, otherwise we block.
*/
static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
struct msghdr *msg, size_t len,
int noblock, int flags, int *addr_len)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)msg->msg_name;
struct sk_buff *skb;
size_t copied;
int err;
if (flags & MSG_OOB)
return -EOPNOTSUPP;
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (flags & MSG_ERRQUEUE)
inet: fix addr_len/msg->msg_namelen assignment in recv_error and rxpmtu functions Commit bceaa90240b6019ed73b49965eac7d167610be69 ("inet: prevent leakage of uninitialized memory to user in recv syscalls") conditionally updated addr_len if the msg_name is written to. The recv_error and rxpmtu functions relied on the recvmsg functions to set up addr_len before. As this does not happen any more we have to pass addr_len to those functions as well and set it to the size of the corresponding sockaddr length. This broke traceroute and such. Fixes: bceaa90240b6 ("inet: prevent leakage of uninitialized memory to user in recv syscalls") Reported-by: Brad Spengler <spender@grsecurity.net> Reported-by: Tom Labanowski Cc: mpb <mpb.mail@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-23 07:46:12 +08:00
return ipv6_recv_error(sk, msg, len, addr_len);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
IPv6: Complete IPV6_DONTFRAG support Finally add support to detect a local IPV6_DONTFRAG event and return the relevant data to the user if they've enabled IPV6_RECVPATHMTU on the socket. The next recvmsg() will return no data, but have an IPV6_PATHMTU as ancillary data. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-23 19:26:09 +08:00
if (np->rxpmtu && np->rxopt.bits.rxpmtu)
inet: fix addr_len/msg->msg_namelen assignment in recv_error and rxpmtu functions Commit bceaa90240b6019ed73b49965eac7d167610be69 ("inet: prevent leakage of uninitialized memory to user in recv syscalls") conditionally updated addr_len if the msg_name is written to. The recv_error and rxpmtu functions relied on the recvmsg functions to set up addr_len before. As this does not happen any more we have to pass addr_len to those functions as well and set it to the size of the corresponding sockaddr length. This broke traceroute and such. Fixes: bceaa90240b6 ("inet: prevent leakage of uninitialized memory to user in recv syscalls") Reported-by: Brad Spengler <spender@grsecurity.net> Reported-by: Tom Labanowski Cc: mpb <mpb.mail@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-23 07:46:12 +08:00
return ipv6_recv_rxpmtu(sk, msg, len, addr_len);
IPv6: Complete IPV6_DONTFRAG support Finally add support to detect a local IPV6_DONTFRAG event and return the relevant data to the user if they've enabled IPV6_RECVPATHMTU on the socket. The next recvmsg() will return no data, but have an IPV6_PATHMTU as ancillary data. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-23 19:26:09 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
skb = skb_recv_datagram(sk, flags, noblock, &err);
if (!skb)
goto out;
copied = skb->len;
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
if (copied > len) {
copied = len;
msg->msg_flags |= MSG_TRUNC;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[NET]: Treat CHECKSUM_PARTIAL as CHECKSUM_UNNECESSARY When a transmitted packet is looped back directly, CHECKSUM_PARTIAL maps to the semantics of CHECKSUM_UNNECESSARY. Therefore we should treat it as such in the stack. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-10 02:59:39 +08:00
if (skb_csum_unnecessary(skb)) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
} else if (msg->msg_flags&MSG_TRUNC) {
[NET]: Detect hardware rx checksum faults correctly Here is the patch that introduces the generic skb_checksum_complete which also checks for hardware RX checksum faults. If that happens, it'll call netdev_rx_csum_fault which currently prints out a stack trace with the device name. In future it can turn off RX checksum. I've converted every spot under net/ that does RX checksum checks to use skb_checksum_complete or __skb_checksum_complete with the exceptions of: * Those places where checksums are done bit by bit. These will call netdev_rx_csum_fault directly. * The following have not been completely checked/converted: ipmr ip_vs netfilter dccp This patch is based on patches and suggestions from Stephen Hemminger and David S. Miller. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-11 05:01:24 +08:00
if (__skb_checksum_complete(skb))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
goto csum_copy_err;
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
} else {
err = skb_copy_and_csum_datagram_iovec(skb, 0, msg->msg_iov);
if (err == -EINVAL)
goto csum_copy_err;
}
if (err)
goto out_free;
/* Copy the address. */
if (sin6) {
sin6->sin6_family = AF_INET6;
[IPV4/IPV6]: Setting 0 for unused port field in RAW IP recvmsg(). From: Tetsuo Handa from-linux-kernel@i-love.sakura.ne.jp The recvmsg() for raw socket seems to return random u16 value from the kernel stack memory since port field is not initialized. But I'm not sure this patch is correct. Does raw socket return any information stored in port field? [ BSD defines RAW IP recvmsg to return a sin_port value of zero. This is described in Steven's TCP/IP Illustrated Volume 2 on page 1055, which is discussing the BSD rip_input() implementation. ] Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-26 08:05:35 +08:00
sin6->sin6_port = 0;
net: remove ipv6_addr_copy() C assignment can handle struct in6_addr copying. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-21 11:39:03 +08:00
sin6->sin6_addr = ipv6_hdr(skb)->saddr;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sin6->sin6_flowinfo = 0;
ipv6: use newly introduced __ipv6_addr_needs_scope_id and ipv6_iface_scope_id This patch requires multicast interface-scoped addresses to supply a sin6_scope_id. Because the sin6_scope_id is now also correctly used in case of interface-scoped multicast traffic this enables one to use interface scoped addresses over interfaces which are not targeted by the default multicast route (the route has to be put there manually, though). getsockname() and getpeername() now return the correct sin6_scope_id in case of interface-local mc addresses. v2: a) rebased ontop of patch 1/4 (now uses ipv6_addr_props) v3: a) reverted changes for ipv6_addr_props v4: a) unchanged Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>dave Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 10:07:19 +08:00
sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
IP6CB(skb)->iif);
inet: prevent leakage of uninitialized memory to user in recv syscalls Only update *addr_len when we actually fill in sockaddr, otherwise we can return uninitialized memory from the stack to the caller in the recvfrom, recvmmsg and recvmsg syscalls. Drop the the (addr_len == NULL) checks because we only get called with a valid addr_len pointer either from sock_common_recvmsg or inet_recvmsg. If a blocking read waits on a socket which is concurrently shut down we now return zero and set msg_msgnamelen to 0. Reported-by: mpb <mpb.mail@gmail.com> Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-18 11:20:45 +08:00
*addr_len = sizeof(*sin6);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
net: Generalize socket rx gap / receive queue overflow cmsg Create a new socket level option to report number of queue overflows Recently I augmented the AF_PACKET protocol to report the number of frames lost on the socket receive queue between any two enqueued frames. This value was exported via a SOL_PACKET level cmsg. AFter I completed that work it was requested that this feature be generalized so that any datagram oriented socket could make use of this option. As such I've created this patch, It creates a new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue overflowed between any two given frames. It also augments the AF_PACKET protocol to take advantage of this new feature (as it previously did not touch sk->sk_drops, which this patch uses to record the overflow count). Tested successfully by me. Notes: 1) Unlike my previous patch, this patch simply records the sk_drops value, which is not a number of drops between packets, but rather a total number of drops. Deltas must be computed in user space. 2) While this patch currently works with datagram oriented protocols, it will also be accepted by non-datagram oriented protocols. I'm not sure if thats agreeable to everyone, but my argument in favor of doing so is that, for those protocols which aren't applicable to this option, sk_drops will always be zero, and reporting no drops on a receive queue that isn't used for those non-participating protocols seems reasonable to me. This also saves us having to code in a per-protocol opt in mechanism. 3) This applies cleanly to net-next assuming that commit 977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is reverted Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-13 04:26:31 +08:00
sock_recv_ts_and_drops(msg, sk, skb);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (np->rxopt.all)
ipv6: rename datagram_send_ctl and datagram_recv_ctl The datagram_*_ctl functions in net/ipv6/datagram.c are IPv6-specific. Since datagram_send_ctl is publicly exported it should be appropriately named to reflect the fact that it's for IPv6 only. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-31 09:02:24 +08:00
ip6_datagram_recv_ctl(sk, msg, skb);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = copied;
if (flags & MSG_TRUNC)
err = skb->len;
out_free:
skb_free_datagram(sk, skb);
out:
return err;
csum_copy_err:
[IP]: Simplify and consolidate MSG_PEEK error handling When a packet is obtained from skb_recv_datagram with MSG_PEEK enabled it is left on the socket receive queue. This means that when we detect a checksum error we have to be careful when trying to free the packet as someone could have dequeued it in the time being. Currently this delicate logic is duplicated three times between UDPv4, UDPv6 and RAWv6. This patch moves them into a one place and simplifies the code somewhat. This is based on a suggestion by Eric Dumazet. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-14 15:16:37 +08:00
skb_kill_datagram(sk, skb, flags);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* Error for blocking case is chosen to masquerade
as some normal condition.
*/
err = (flags&MSG_DONTWAIT) ? -EAGAIN : -EHOSTUNREACH;
[IP]: Simplify and consolidate MSG_PEEK error handling When a packet is obtained from skb_recv_datagram with MSG_PEEK enabled it is left on the socket receive queue. This means that when we detect a checksum error we have to be careful when trying to free the packet as someone could have dequeued it in the time being. Currently this delicate logic is duplicated three times between UDPv4, UDPv6 and RAWv6. This patch moves them into a one place and simplifies the code somewhat. This is based on a suggestion by Eric Dumazet. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-14 15:16:37 +08:00
goto out;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
static int rawv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
struct raw6_sock *rp)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
struct sk_buff *skb;
int err = 0;
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
int offset;
int len;
[IPV6]: Fix raw socket checksums with IPsec I made a mistake in my last patch to the raw socket checksum code. I used the value of inet->cork.length as the length of the payload. While this works with normal packets, it breaks down when IPsec is present since the cork length includes the extension header length. So here is a patch to fix the length calculations. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-04 05:24:36 +08:00
int total_len;
[NET]: annotate csum_ipv6_magic() callers in net/* Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-15 13:35:48 +08:00
__wsum tmp_csum;
__sum16 csum;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (!rp->checksum)
goto send;
if ((skb = skb_peek(&sk->sk_write_queue)) == NULL)
goto out;
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
offset = rp->offset;
ipv6: Fix IPsec slowpath fragmentation problem ip6_append_data() builds packets based on the mtu from dst_mtu(rt->dst.path). On IPsec the effective mtu is lower because we need to add the protocol headers and trailers later when we do the IPsec transformations. So after the IPsec transformations the packet might be too big, which leads to a slowpath fragmentation then. This patch fixes this by building the packets based on the lower IPsec mtu from dst_mtu(&rt->dst) and adapts the exthdr handling to this. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-11 09:43:33 +08:00
total_len = inet_sk(sk)->cork.base.length;
[IPV6]: Fix raw socket checksums with IPsec I made a mistake in my last patch to the raw socket checksum code. I used the value of inet->cork.length as the length of the payload. While this works with normal packets, it breaks down when IPsec is present since the cork length includes the extension header length. So here is a patch to fix the length calculations. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-04 05:24:36 +08:00
if (offset >= total_len - 1) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = -EINVAL;
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
ip6_flush_pending_frames(sk);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
goto out;
}
/* should be check HW csum miyazawa */
if (skb_queue_len(&sk->sk_write_queue) == 1) {
/*
* Only one fragment on the socket.
*/
tmp_csum = skb->csum;
} else {
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
struct sk_buff *csum_skb = NULL;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
tmp_csum = 0;
skb_queue_walk(&sk->sk_write_queue, skb) {
tmp_csum = csum_add(tmp_csum, skb->csum);
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
if (csum_skb)
continue;
[SK_BUFF]: Introduce skb_transport_offset() For the quite common 'skb->h.raw - skb->data' sequence. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 08:55:53 +08:00
len = skb->len - skb_transport_offset(skb);
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
if (offset >= len) {
offset -= len;
continue;
}
csum_skb = skb;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
skb = csum_skb;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[SK_BUFF]: Introduce skb_transport_offset() For the quite common 'skb->h.raw - skb->data' sequence. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 08:55:53 +08:00
offset += skb_transport_offset(skb);
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
if (skb_copy_bits(skb, offset, &csum, 2))
BUG();
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* in case cksum was not initialized */
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
if (unlikely(csum))
[NET]: Annotate callers of the reset of checksum.h stuff. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-15 13:36:54 +08:00
tmp_csum = csum_sub(tmp_csum, csum_unfold(csum));
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
csum = csum_ipv6_magic(&fl6->saddr, &fl6->daddr,
total_len, fl6->flowi6_proto, tmp_csum);
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
if (csum == 0 && fl6->flowi6_proto == IPPROTO_UDP)
[NET]: Make mangling a checksum (0 -> 0xffff on the wire) explicit. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-16 18:36:50 +08:00
csum = CSUM_MANGLED_0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:30:14 +08:00
if (skb_store_bits(skb, offset, &csum, 2))
BUG();
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
send:
err = ip6_push_pending_frames(sk);
out:
return err;
}
static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
struct flowi6 *fl6, struct dst_entry **dstp,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
unsigned int flags)
{
[IPV6]: Replace bogus instances of inet->recverr While looking at this problem I noticed that IPv6 was sometimes looking at inet->recverr which is bogus. Here is a patch to correct that and use np->recverr. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-20 13:32:22 +08:00
struct ipv6_pinfo *np = inet6_sk(sk);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct ipv6hdr *iph;
struct sk_buff *skb;
int err;
raw: avoid two atomics in xmit Avoid two atomic ops per raw_send_hdrinc() call Avoid two atomic ops per raw6_send_hdrinc() call Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-04 06:23:57 +08:00
struct rt6_info *rt = (struct rt6_info *)*dstp;
ipv6: Remove all uses of LL_ALLOCATED_SPACE ipv6: Remove all uses of LL_ALLOCATED_SPACE The macro LL_ALLOCATED_SPACE was ill-conceived. It applies the alignment to the sum of needed_headroom and needed_tailroom. As the amount that is then reserved for head room is needed_headroom with alignment, this means that the tail room left may be too small. This patch replaces all uses of LL_ALLOCATED_SPACE in net/ipv6 with the macro LL_RESERVED_SPACE and direct reference to needed_tailroom. This also fixes the problem with needed_headroom changing between allocating the skb and reserving the head room. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-18 10:20:04 +08:00
int hlen = LL_RESERVED_SPACE(rt->dst.dev);
int tlen = rt->dst.dev->needed_tailroom;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
net-next: remove useless union keyword remove useless union keyword in rtable, rt6_info and dn_route. Since there is only one member in a union, the union keyword isn't useful. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-11 14:31:35 +08:00
if (length > rt->dst.dev->mtu) {
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
ipv6_local_error(sk, EMSGSIZE, fl6, rt->dst.dev->mtu);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return -EMSGSIZE;
}
if (flags&MSG_PROBE)
goto out;
net: Allow netdevices to specify needed head/tailroom This patch adds needed_headroom/needed_tailroom members to struct net_device and updates many places that allocate sbks to use them. Not all of them can be converted though, and I'm sure I missed some (I mostly grepped for LL_RESERVED_SPACE) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-13 11:48:31 +08:00
skb = sock_alloc_send_skb(sk,
ipv6: Remove all uses of LL_ALLOCATED_SPACE ipv6: Remove all uses of LL_ALLOCATED_SPACE The macro LL_ALLOCATED_SPACE was ill-conceived. It applies the alignment to the sum of needed_headroom and needed_tailroom. As the amount that is then reserved for head room is needed_headroom with alignment, this means that the tail room left may be too small. This patch replaces all uses of LL_ALLOCATED_SPACE in net/ipv6 with the macro LL_RESERVED_SPACE and direct reference to needed_tailroom. This also fixes the problem with needed_headroom changing between allocating the skb and reserving the head room. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-18 10:20:04 +08:00
length + hlen + tlen + 15,
net: Allow netdevices to specify needed head/tailroom This patch adds needed_headroom/needed_tailroom members to struct net_device and updates many places that allocate sbks to use them. Not all of them can be converted though, and I'm sure I missed some (I mostly grepped for LL_RESERVED_SPACE) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-13 11:48:31 +08:00
flags & MSG_DONTWAIT, &err);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (skb == NULL)
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
goto error;
ipv6: Remove all uses of LL_ALLOCATED_SPACE ipv6: Remove all uses of LL_ALLOCATED_SPACE The macro LL_ALLOCATED_SPACE was ill-conceived. It applies the alignment to the sum of needed_headroom and needed_tailroom. As the amount that is then reserved for head room is needed_headroom with alignment, this means that the tail room left may be too small. This patch replaces all uses of LL_ALLOCATED_SPACE in net/ipv6 with the macro LL_RESERVED_SPACE and direct reference to needed_tailroom. This also fixes the problem with needed_headroom changing between allocating the skb and reserving the head room. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-18 10:20:04 +08:00
skb_reserve(skb, hlen);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: set skb->protocol on tcp, raw and ip6_append_data genereated skbs Currently we don't initialize skb->protocol when transmitting data via tcp, raw(with and without inclhdr) or udp+ufo or appending data directly to the socket transmit queue (via ip6_append_data). This needs to be done so that we can get the correct mtu in the xfrm layer. Setting of skb->protocol happens only in functions where we also have a transmitting socket and a new skb, so we don't overwrite old values. Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2013-08-26 18:31:23 +08:00
skb->protocol = htons(ETH_P_IPV6);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
skb->priority = sk->sk_priority;
[NET]: Introducing socket mark socket option. A userspace program may wish to set the mark for each packets its send without using the netfilter MARK target. Changing the mark can be used for mark based routing without netfilter or for packet filtering. It requires CAP_NET_ADMIN capability. Signed-off-by: Laszlo Attila Toth <panther@balabit.hu> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31 11:08:16 +08:00
skb->mark = sk->sk_mark;
net-next: remove useless union keyword remove useless union keyword in rtable, rt6_info and dn_route. Since there is only one member in a union, the union keyword isn't useful. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-11 14:31:35 +08:00
skb_dst_set(skb, &rt->dst);
raw: avoid two atomics in xmit Avoid two atomic ops per raw_send_hdrinc() call Avoid two atomic ops per raw6_send_hdrinc() call Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-04 06:23:57 +08:00
*dstp = NULL;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[SK_BUFF] ipv6: More skb_reset_network_header conversions related to skb_pull Now related to this form: skb->nh.ipv6h = (struct ipv6hdr *)skb_put(skb, length); That, as the others, is done when skb->tail is still equal to skb->data, making the conversion to skb_reset_network_header possible. Also one more case equivalent to skb->nh.raw = skb->data, of this form: iph = (struct ipv6hdr *)skb->data; <SNIP> skb->nh.ipv6h = iph; Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-11 06:57:15 +08:00
skb_put(skb, length);
skb_reset_network_header(skb);
[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h Now the skb->nh union has just one member, .raw, i.e. it is just like the skb->mac union, strange, no? I'm just leaving it like that till the transport layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or ->mac_header_offset?), ditto for ->{h,nh}. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 08:54:47 +08:00
iph = ipv6_hdr(skb);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
skb->ip_summed = CHECKSUM_NONE;
[SK_BUFF]: unions of just one member don't get anything done, kill them Renaming skb->h to skb->transport_header, skb->nh to skb->network_header and skb->mac to skb->mac_header, to match the names of the associated helpers (skb[_[re]set]_{transport,network,mac}_header). Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-11 12:21:55 +08:00
skb->transport_header = skb->network_header;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = memcpy_fromiovecend((void *)iph, from, 0, length);
if (err)
goto error_fault;
snmp: add missing counters for RFC 4293 The IP MIB (RFC 4293) defines stats for InOctets, OutOctets, InMcastOctets and OutMcastOctets: http://tools.ietf.org/html/rfc4293 But it seems we don't track those in any way that easy to separate from other protocols. This patch adds those missing counters to the stats file. Tested successfully by me With help from Eric Dumazet. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27 17:45:02 +08:00
IP6_UPD_PO_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len);
netfilter: ipv6: use NFPROTO values for NF_HOOK invocation The semantic patch that was used: // <smpl> @@ @@ (NF_HOOK |NF_HOOK_THRESH |nf_hook )( -PF_INET6, +NFPROTO_IPV6, ...) // </smpl> Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2010-03-23 11:09:07 +08:00
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL,
net-next: remove useless union keyword remove useless union keyword in rtable, rt6_info and dn_route. Since there is only one member in a union, the union keyword isn't useful. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-11 14:31:35 +08:00
rt->dst.dev, dst_output);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (err > 0)
ip: Report qdisc packet drops Christoph Lameter pointed out that packet drops at qdisc level where not accounted in SNMP counters. Only if application sets IP_RECVERR, drops are reported to user (-ENOBUFS errors) and SNMP counters updated. IP_RECVERR is used to enable extended reliable error message passing, but these are not needed to update system wide SNMP stats. This patch changes things a bit to allow SNMP counters to be updated, regardless of IP_RECVERR being set or not on the socket. Example after an UDP tx flood # netstat -s ... IP: 1487048 outgoing packets dropped ... Udp: ... SndbufErrors: 1487048 send() syscalls, do however still return an OK status, to not break applications. Note : send() manual page explicitly says for -ENOBUFS error : "The output queue for a network interface was full. This generally indicates that the interface has stopped sending, but may be caused by transient congestion. (Normally, this does not occur in Linux. Packets are just silently dropped when a device queue overflows.) " This is not true for IP_RECVERR enabled sockets : a send() syscall that hit a qdisc drop returns an ENOBUFS error. Many thanks to Christoph, David, and last but not least, Alexey ! Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 09:05:33 +08:00
err = net_xmit_errno(err);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (err)
goto error;
out:
return 0;
error_fault:
err = -EFAULT;
kfree_skb(skb);
error:
netns: add net parameter to IP6_INC_STATS Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-09 01:54:51 +08:00
IP6_INC_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS);
ip: Report qdisc packet drops Christoph Lameter pointed out that packet drops at qdisc level where not accounted in SNMP counters. Only if application sets IP_RECVERR, drops are reported to user (-ENOBUFS errors) and SNMP counters updated. IP_RECVERR is used to enable extended reliable error message passing, but these are not needed to update system wide SNMP stats. This patch changes things a bit to allow SNMP counters to be updated, regardless of IP_RECVERR being set or not on the socket. Example after an UDP tx flood # netstat -s ... IP: 1487048 outgoing packets dropped ... Udp: ... SndbufErrors: 1487048 send() syscalls, do however still return an OK status, to not break applications. Note : send() manual page explicitly says for -ENOBUFS error : "The output queue for a network interface was full. This generally indicates that the interface has stopped sending, but may be caused by transient congestion. (Normally, this does not occur in Linux. Packets are just silently dropped when a device queue overflows.) " This is not true for IP_RECVERR enabled sockets : a send() syscall that hit a qdisc drop returns an ENOBUFS error. Many thanks to Christoph, David, and last but not least, Alexey ! Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 09:05:33 +08:00
if (err == -ENOBUFS && !np->recverr)
err = 0;
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
return err;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
static int rawv6_probe_proto_opt(struct flowi6 *fl6, struct msghdr *msg)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
struct iovec *iov;
u8 __user *type = NULL;
u8 __user *code = NULL;
[IPV6] MIP6: Add sending mobility header functions through raw socket. Mobility header is built by user-space and sent through raw socket. Kernel just extracts its type to flow. Based on MIPL2 kernel patch. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24 11:36:47 +08:00
u8 len = 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
int probed = 0;
int i;
if (!msg->msg_iov)
[NET]: fix uaccess handling Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-31 07:06:12 +08:00
return 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
for (i = 0; i < msg->msg_iovlen; i++) {
iov = &msg->msg_iov[i];
if (!iov)
continue;
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
switch (fl6->flowi6_proto) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
case IPPROTO_ICMPV6:
/* check if one-byte field is readable or not. */
if (iov->iov_base && iov->iov_len < 1)
break;
if (!type) {
type = iov->iov_base;
/* check if code field is readable or not. */
if (iov->iov_len > 1)
code = type + 1;
} else if (!code)
code = iov->iov_base;
if (type && code) {
net: Put fl6_* macros to struct flowi6 and use them again. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:36:19 +08:00
if (get_user(fl6->fl6_icmp_type, type) ||
get_user(fl6->fl6_icmp_code, code))
[NET]: fix uaccess handling Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-31 07:06:12 +08:00
return -EFAULT;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
probed = 1;
}
break;
[IPV6] MIP6: Add sending mobility header functions through raw socket. Mobility header is built by user-space and sent through raw socket. Kernel just extracts its type to flow. Based on MIPL2 kernel patch. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24 11:36:47 +08:00
case IPPROTO_MH:
if (iov->iov_base && iov->iov_len < 1)
break;
/* check if type field is readable or not. */
if (iov->iov_len > 2 - len) {
u8 __user *p = iov->iov_base;
net: Put fl6_* macros to struct flowi6 and use them again. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:36:19 +08:00
if (get_user(fl6->fl6_mh_type, &p[2 - len]))
[NET]: fix uaccess handling Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-31 07:06:12 +08:00
return -EFAULT;
[IPV6] MIP6: Add sending mobility header functions through raw socket. Mobility header is built by user-space and sent through raw socket. Kernel just extracts its type to flow. Based on MIPL2 kernel patch. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24 11:36:47 +08:00
probed = 1;
} else
len += iov->iov_len;
break;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
default:
probed = 1;
break;
}
if (probed)
break;
}
[NET]: fix uaccess handling Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-31 07:06:12 +08:00
return 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
struct msghdr *msg, size_t len)
{
struct ipv6_txoptions opt_space;
struct sockaddr_in6 * sin6 = (struct sockaddr_in6 *) msg->msg_name;
ipv6: Refactor update of IPv6 flowi destination address for srcrt (RH) option There are more than a dozen occurrences of following code in the IPv6 stack: if (opt && opt->srcrt) { struct rt0_hdr *rt0 = (struct rt0_hdr *) opt->srcrt; ipv6_addr_copy(&final, &fl.fl6_dst); ipv6_addr_copy(&fl.fl6_dst, rt0->addr); final_p = &final; } Replace those with a helper. Note that the helper overrides final_p in all cases. This is ok as final_p was previously initialized to NULL when declared. Signed-off-by: Arnaud Ebalard <arno@natisbad.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-02 05:35:01 +08:00
struct in6_addr *daddr, *final_p, final;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
struct raw6_sock *rp = raw6_sk(sk);
struct ipv6_txoptions *opt = NULL;
struct ip6_flowlabel *flowlabel = NULL;
struct dst_entry *dst = NULL;
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
struct flowi6 fl6;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
int addr_len = msg->msg_namelen;
int hlimit = -1;
[IPV6]: Support IPV6_{RECV,}TCLASS socket options / ancillary data. Based on patch from David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 09:19:03 +08:00
int tclass = -1;
IPv6: Add dontfrag argument to relevant functions Add dontfrag argument to relevant functions for IPV6_DONTFRAG support, as well as allowing the value to be passed-in via ancillary cmsg data. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-23 19:26:08 +08:00
int dontfrag = -1;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
u16 proto;
int err;
/* Rough check on arithmetic overflow,
[IPv6]: Fix incorrect length check in rawv6_sendmsg() In article <20070329.142644.70222545.davem@davemloft.net> (at Thu, 29 Mar 2007 14:26:44 -0700 (PDT)), David Miller <davem@davemloft.net> says: > From: Sridhar Samudrala <sri@us.ibm.com> > Date: Thu, 29 Mar 2007 14:17:28 -0700 > > > The check for length in rawv6_sendmsg() is incorrect. > > As len is an unsigned int, (len < 0) will never be TRUE. > > I think checking for IPV6_MAXPLEN(65535) is better. > > > > Is it possible to send ipv6 jumbo packets using raw > > sockets? If so, we can remove this check. > > I don't see why such a limitation against jumbo would exist, > does anyone else? > > Thanks for catching this Sridhar. A good compiler should simply > fail to compile "if (x < 0)" when 'x' is an unsigned type, don't > you think :-) Dave, we use "int" for returning value, so we should fix this anyway, IMHO; we should not allow len > INT_MAX. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-31 05:45:35 +08:00
better check is made in ip6_append_data().
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*/
[IPv6]: Fix incorrect length check in rawv6_sendmsg() In article <20070329.142644.70222545.davem@davemloft.net> (at Thu, 29 Mar 2007 14:26:44 -0700 (PDT)), David Miller <davem@davemloft.net> says: > From: Sridhar Samudrala <sri@us.ibm.com> > Date: Thu, 29 Mar 2007 14:17:28 -0700 > > > The check for length in rawv6_sendmsg() is incorrect. > > As len is an unsigned int, (len < 0) will never be TRUE. > > I think checking for IPV6_MAXPLEN(65535) is better. > > > > Is it possible to send ipv6 jumbo packets using raw > > sockets? If so, we can remove this check. > > I don't see why such a limitation against jumbo would exist, > does anyone else? > > Thanks for catching this Sridhar. A good compiler should simply > fail to compile "if (x < 0)" when 'x' is an unsigned type, don't > you think :-) Dave, we use "int" for returning value, so we should fix this anyway, IMHO; we should not allow len > INT_MAX. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-31 05:45:35 +08:00
if (len > INT_MAX)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return -EMSGSIZE;
/* Mirror BSD error message compatibility */
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
if (msg->msg_flags & MSG_OOB)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return -EOPNOTSUPP;
/*
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
* Get and verify the address.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*/
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
memset(&fl6, 0, sizeof(fl6));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
fl6.flowi6_mark = sk->sk_mark;
[NET]: Introducing socket mark socket option. A userspace program may wish to set the mark for each packets its send without using the netfilter MARK target. Changing the mark can be used for mark based routing without netfilter or for packet filtering. It requires CAP_NET_ADMIN capability. Signed-off-by: Laszlo Attila Toth <panther@balabit.hu> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31 11:08:16 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (sin6) {
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
if (addr_len < SIN6_LEN_RFC2133)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return -EINVAL;
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
if (sin6->sin6_family && sin6->sin6_family != AF_INET6)
net: return operator cleanup Change "return (EXPR);" to "return EXPR;" return is not a function, parentheses are not required. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-23 04:43:57 +08:00
return -EAFNOSUPPORT;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* port is the proto value [0..255] carried in nexthdr */
proto = ntohs(sin6->sin6_port);
if (!proto)
inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-15 14:30:45 +08:00
proto = inet->inet_num;
else if (proto != inet->inet_num)
net: return operator cleanup Change "return (EXPR);" to "return EXPR;" return is not a function, parentheses are not required. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-23 04:43:57 +08:00
return -EINVAL;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (proto > 255)
net: return operator cleanup Change "return (EXPR);" to "return EXPR;" return is not a function, parentheses are not required. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-23 04:43:57 +08:00
return -EINVAL;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
daddr = &sin6->sin6_addr;
if (np->sndflow) {
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
fl6.flowlabel = sin6->sin6_flowinfo&IPV6_FLOWINFO_MASK;
if (fl6.flowlabel&IPV6_FLOWLABEL_MASK) {
flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (flowlabel == NULL)
return -EINVAL;
}
}
/*
* Otherwise it will be difficult to maintain
* sk->sk_dst_cache.
*/
if (sk->sk_state == TCP_ESTABLISHED &&
ipv6: make lookups simpler and faster TCP listener refactoring, part 4 : To speed up inet lookups, we moved IPv4 addresses from inet to struct sock_common Now is time to do the same for IPv6, because it permits us to have fast lookups for all kind of sockets, including upcoming SYN_RECV. Getting IPv6 addresses in TCP lookups currently requires two extra cache lines, plus a dereference (and memory stall). inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6 This patch is way bigger than its IPv4 counter part, because for IPv4, we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6, it's not doable easily. inet6_sk(sk)->daddr becomes sk->sk_v6_daddr inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr at the same offset. We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic macro. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-04 06:42:29 +08:00
ipv6_addr_equal(daddr, &sk->sk_v6_daddr))
daddr = &sk->sk_v6_daddr;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (addr_len >= sizeof(struct sockaddr_in6) &&
sin6->sin6_scope_id &&
ipv6: use newly introduced __ipv6_addr_needs_scope_id and ipv6_iface_scope_id This patch requires multicast interface-scoped addresses to supply a sin6_scope_id. Because the sin6_scope_id is now also correctly used in case of interface-scoped multicast traffic this enables one to use interface scoped addresses over interfaces which are not targeted by the default multicast route (the route has to be put there manually, though). getsockname() and getpeername() now return the correct sin6_scope_id in case of interface-local mc addresses. v2: a) rebased ontop of patch 1/4 (now uses ipv6_addr_props) v3: a) reverted changes for ipv6_addr_props v4: a) unchanged Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>dave Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-08 10:07:19 +08:00
__ipv6_addr_needs_scope_id(__ipv6_addr_type(daddr)))
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
fl6.flowi6_oif = sin6->sin6_scope_id;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
} else {
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
if (sk->sk_state != TCP_ESTABLISHED)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return -EDESTADDRREQ;
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-15 14:30:45 +08:00
proto = inet->inet_num;
ipv6: make lookups simpler and faster TCP listener refactoring, part 4 : To speed up inet lookups, we moved IPv4 addresses from inet to struct sock_common Now is time to do the same for IPv6, because it permits us to have fast lookups for all kind of sockets, including upcoming SYN_RECV. Getting IPv6 addresses in TCP lookups currently requires two extra cache lines, plus a dereference (and memory stall). inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6 This patch is way bigger than its IPv4 counter part, because for IPv4, we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6, it's not doable easily. inet6_sk(sk)->daddr becomes sk->sk_v6_daddr inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr at the same offset. We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic macro. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-04 06:42:29 +08:00
daddr = &sk->sk_v6_daddr;
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
fl6.flowlabel = np->flow_label;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
if (fl6.flowi6_oif == 0)
fl6.flowi6_oif = sk->sk_bound_dev_if;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (msg->msg_controllen) {
opt = &opt_space;
memset(opt, 0, sizeof(struct ipv6_txoptions));
opt->tot_len = sizeof(struct ipv6_txoptions);
ipv6: rename datagram_send_ctl and datagram_recv_ctl The datagram_*_ctl functions in net/ipv6/datagram.c are IPv6-specific. Since datagram_send_ctl is publicly exported it should be appropriately named to reflect the fact that it's for IPv6 only. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-31 09:02:24 +08:00
err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, opt,
&hlimit, &tclass, &dontfrag);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (err < 0) {
fl6_sock_release(flowlabel);
return err;
}
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
if ((fl6.flowlabel&IPV6_FLOWLABEL_MASK) && !flowlabel) {
flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (flowlabel == NULL)
return -EINVAL;
}
if (!(opt->opt_nflen|opt->opt_flen))
opt = NULL;
}
if (opt == NULL)
opt = np->opt;
[IPV6]: Fix sending extension headers before and including routing header. Based on suggestion from Masahide Nakamura <nakam@linux-ipv6.org>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-11-20 11:23:18 +08:00
if (flowlabel)
opt = fl6_merge_options(&opt_space, flowlabel, opt);
opt = ipv6_fixup_options(&opt_space, opt);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
fl6.flowi6_proto = proto;
err = rawv6_probe_proto_opt(&fl6, msg);
[NET]: fix uaccess handling Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-31 07:06:12 +08:00
if (err)
goto out;
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
[IPv6]: Change IPv6 unspecified destination address to ::1 for raw and un-connected sockets This patch fixes a difference between IPv4 and IPv6 when sending packets to the unspecified address (either 0.0.0.0 or ::) when using raw or un-connected UDP sockets. There are two cases where IPv6 either fails to send anything, or sends with the destination address set to ::. For example: --> ping -c1 0.0.0.0 PING 0.0.0.0 (127.0.0.1) 56(84) bytes of data. 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.032 ms --> ping6 -c1 :: PING ::(::) 56 data bytes ping: sendmsg: Invalid argument Doing a sendto("0.0.0.0") reveals: 10:55:01.495090 IP localhost.32780 > localhost.7639: UDP, length 100 Doing a sendto("::") reveals: 10:56:13.262478 IP6 fe80::217:8ff:fe7d:4718.32779 > ::.7639: UDP, length 100 If you issue a connect() first in the UDP case, it will be sent to ::1, similar to what happens with TCP. This restores the BSD-ism. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-11 12:38:24 +08:00
if (!ipv6_addr_any(daddr))
net: remove ipv6_addr_copy() C assignment can handle struct in6_addr copying. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-21 11:39:03 +08:00
fl6.daddr = *daddr;
[IPv6]: Change IPv6 unspecified destination address to ::1 for raw and un-connected sockets This patch fixes a difference between IPv4 and IPv6 when sending packets to the unspecified address (either 0.0.0.0 or ::) when using raw or un-connected UDP sockets. There are two cases where IPv6 either fails to send anything, or sends with the destination address set to ::. For example: --> ping -c1 0.0.0.0 PING 0.0.0.0 (127.0.0.1) 56(84) bytes of data. 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.032 ms --> ping6 -c1 :: PING ::(::) 56 data bytes ping: sendmsg: Invalid argument Doing a sendto("0.0.0.0") reveals: 10:55:01.495090 IP localhost.32780 > localhost.7639: UDP, length 100 Doing a sendto("::") reveals: 10:56:13.262478 IP6 fe80::217:8ff:fe7d:4718.32779 > ::.7639: UDP, length 100 If you issue a connect() first in the UDP case, it will be sent to ::1, similar to what happens with TCP. This restores the BSD-ism. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-11 12:38:24 +08:00
else
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
fl6.daddr.s6_addr[15] = 0x1; /* :: means loopback (BSD'ism) */
if (ipv6_addr_any(&fl6.saddr) && !ipv6_addr_any(&np->saddr))
net: remove ipv6_addr_copy() C assignment can handle struct in6_addr copying. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-21 11:39:03 +08:00
fl6.saddr = np->saddr;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
final_p = fl6_update_dst(&fl6, opt, &final);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
if (!fl6.flowi6_oif && ipv6_addr_is_multicast(&fl6.daddr))
fl6.flowi6_oif = np->mcast_oif;
ipv6: Implement IPV6_UNICAST_IF socket option. The IPV6_UNICAST_IF feature is the IPv6 compliment to IP_UNICAST_IF. Signed-off-by: Erich E. Hoover <ehoover@mines.edu> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-08 17:11:08 +08:00
else if (!fl6.flowi6_oif)
fl6.flowi6_oif = np->ucast_oif;
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true);
ipv6: Consolidate route lookup sequences. Route lookups follow a general pattern in the ipv6 code wherein we first find the non-IPSEC route, potentially override the flow destination address due to ipv6 options settings, and then finally make an IPSEC search using either xfrm_lookup() or __xfrm_lookup(). __xfrm_lookup() is used when we want to generate a blackhole route if the key manager needs to resolve the IPSEC rules (in this case -EREMOTE is returned and the original 'dst' is left unchanged). Otherwise plain xfrm_lookup() is used and when asynchronous IPSEC resolution is necessary, we simply fail the lookup completely. All of these cases are encapsulated into two routines, ip6_dst_lookup_flow and ip6_sk_dst_lookup_flow. The latter of which handles unconnected UDP datagram sockets. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-02 05:19:07 +08:00
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
goto out;
[XFRM]: Allow packet drops during larval state resolution. The current IPSEC rule resolution behavior we have does not work for a lot of people, even though technically it's an improvement from the -EAGAIN buisness we had before. Right now we'll block until the key manager resolves the route. That works for simple cases, but many folks would rather packets get silently dropped until the key manager resolves the IPSEC rules. We can't tell these folks to "set the socket non-blocking" because they don't have control over the non-block setting of things like the sockets used to resolve DNS deep inside of the resolver libraries in libc. With that in mind I coded up the patch below with some help from Herbert Xu which provides packet-drop behavior during larval state resolution, controllable via sysctl and off by default. This lays the framework to either: 1) Make this default at some point or... 2) Move this logic into xfrm{4,6}_policy.c and implement the ARP-like resolution queue we've all been dreaming of. The idea would be to queue packets to the policy, then once the larval state is resolved by the key manager we re-resolve the route and push the packets out. The packets would timeout if the rule didn't get resolved in a certain amount of time. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-25 09:17:54 +08:00
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (hlimit < 0) {
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
if (ipv6_addr_is_multicast(&fl6.daddr))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hlimit = np->mcast_hops;
else
hlimit = np->hop_limit;
if (hlimit < 0)
[IPV6]: Optimize hop-limit determination. Last part of hop-limit determination is always: hoplimit = dst_metric(dst, RTAX_HOPLIMIT); if (hoplimit < 0) hoplimit = ipv6_get_hoplimit(dst->dev). Let's consolidate it as ip6_dst_hoplimit(dst). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-10 18:00:30 +08:00
hlimit = ip6_dst_hoplimit(dst);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
inet6: Conversion from u8 to int This replaces assignments of the type "int on LHS" = "u8 on RHS" with simpler code. The LHS can express all of the unsigned right hand side values, hence the assigned value can not be negative. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-09 16:12:48 +08:00
if (tclass < 0)
[IPV6]: Fix tclass setting for raw sockets. np->cork.tclass is used only in cork'ed context. Otherwise, np->tclass should be used. Bug#7096 reported by Remi Denis-Courmont <rdenis@simphalempin.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-14 11:01:28 +08:00
tclass = np->tclass;
[IPV6]: Support IPV6_{RECV,}TCLASS socket options / ancillary data. Based on patch from David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 09:19:03 +08:00
IPv6: Add dontfrag argument to relevant functions Add dontfrag argument to relevant functions for IPV6_DONTFRAG support, as well as allowing the value to be passed-in via ancillary cmsg data. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-23 19:26:08 +08:00
if (dontfrag < 0)
dontfrag = np->dontfrag;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (msg->msg_flags&MSG_CONFIRM)
goto do_confirm;
back_from_confirm:
raw: avoid two atomics in xmit Avoid two atomic ops per raw_send_hdrinc() call Avoid two atomic ops per raw6_send_hdrinc() call Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-04 06:23:57 +08:00
if (inet->hdrincl)
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
err = rawv6_send_hdrinc(sk, msg->msg_iov, len, &fl6, &dst, msg->msg_flags);
raw: avoid two atomics in xmit Avoid two atomic ops per raw_send_hdrinc() call Avoid two atomic ops per raw6_send_hdrinc() call Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-04 06:23:57 +08:00
else {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
lock_sock(sk);
[IPV6]: Support IPV6_{RECV,}TCLASS socket options / ancillary data. Based on patch from David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 09:19:03 +08:00
err = ip6_append_data(sk, ip_generic_getfrag, msg->msg_iov,
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
len, 0, hlimit, tclass, opt, &fl6, (struct rt6_info*)dst,
IPv6: Add dontfrag argument to relevant functions Add dontfrag argument to relevant functions for IPV6_DONTFRAG support, as well as allowing the value to be passed-in via ancillary cmsg data. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-23 19:26:08 +08:00
msg->msg_flags, dontfrag);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (err)
ip6_flush_pending_frames(sk);
else if (!(msg->msg_flags & MSG_MORE))
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
err = rawv6_push_pending_frames(sk, &fl6, rp);
[IPV6]: Fix unbalanced socket reference with MSG_CONFIRM. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-15 07:45:40 +08:00
release_sock(sk);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
done:
[IPV6] Don't store dst_entry for RAW socket Signed-off-by: Nicolas DICHTEL <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-14 07:56:13 +08:00
dst_release(dst);
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
out:
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
fl6_sock_release(flowlabel);
return err<0?err:len;
do_confirm:
dst_confirm(dst);
if (!(msg->msg_flags & MSG_PROBE) || len)
goto back_from_confirm;
err = 0;
goto done;
}
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
char __user *optval, int optlen)
{
switch (optname) {
case ICMPV6_FILTER:
if (optlen > sizeof(struct icmp6_filter))
optlen = sizeof(struct icmp6_filter);
if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen))
return -EFAULT;
return 0;
default:
return -ENOPROTOOPT;
[NET]: cleanup extra semicolons Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-21 08:09:22 +08:00
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 0;
}
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
char __user *optval, int __user *optlen)
{
int len;
switch (optname) {
case ICMPV6_FILTER:
if (get_user(len, optlen))
return -EFAULT;
if (len < 0)
return -EINVAL;
if (len > sizeof(struct icmp6_filter))
len = sizeof(struct icmp6_filter);
if (put_user(len, optlen))
return -EFAULT;
if (copy_to_user(optval, &raw6_sk(sk)->filter, len))
return -EFAULT;
return 0;
default:
return -ENOPROTOOPT;
[NET]: cleanup extra semicolons Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-21 08:09:22 +08:00
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 0;
}
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
net: Make setsockopt() optlen be unsigned. This provides safety against negative optlen at the type level instead of depending upon (sometimes non-trivial) checks against this sprinkled all over the the place, in each and every implementation. Based upon work done by Arjan van de Ven and feedback from Linus Torvalds. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 07:12:20 +08:00
char __user *optval, unsigned int optlen)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
struct raw6_sock *rp = raw6_sk(sk);
int val;
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 22:24:49 +08:00
if (get_user(val, (int __user *)optval))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return -EFAULT;
switch (optname) {
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
case IPV6_CHECKSUM:
if (inet_sk(sk)->inet_num == IPPROTO_ICMPV6 &&
level == IPPROTO_IPV6) {
/*
* RFC3542 tells that IPV6_CHECKSUM socket
* option in the IPPROTO_IPV6 level is not
* allowed on ICMPv6 sockets.
* If you want to set it, use IPPROTO_RAW
* level IPV6_CHECKSUM socket option
* (Linux extension).
*/
return -EINVAL;
}
ipv6 RAW: Disallow IPPROTO_IPV6-level IPV6_CHECKSUM socket option on ICMPv6 sockets. RFC3542 tells that IPV6_CHECKSUM socket option in the IPPROTO_IPV6 level is not allowed on ICMPv6 sockets. IPPROTO_RAW level IPV6_CHECKSUM socket option (a Linux extension) is still allowed. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-25 12:30:38 +08:00
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
/* You may get strange result with a positive odd offset;
RFC2292bis agrees with me. */
if (val > 0 && (val&1))
return -EINVAL;
if (val < 0) {
rp->checksum = 0;
} else {
rp->checksum = 1;
rp->offset = val;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
return 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
default:
return -ENOPROTOOPT;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
}
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
static int rawv6_setsockopt(struct sock *sk, int level, int optname,
net: Make setsockopt() optlen be unsigned. This provides safety against negative optlen at the type level instead of depending upon (sometimes non-trivial) checks against this sprinkled all over the the place, in each and every implementation. Based upon work done by Arjan van de Ven and feedback from Linus Torvalds. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 07:12:20 +08:00
char __user *optval, unsigned int optlen)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
switch (level) {
case SOL_RAW:
break;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
case SOL_ICMPV6:
if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_seticmpfilter(sk, level, optname, optval, optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM)
break;
default:
return ipv6_setsockopt(sk, level, optname, optval, optlen);
[NET]: cleanup extra semicolons Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-21 08:09:22 +08:00
}
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname,
net: Make setsockopt() optlen be unsigned. This provides safety against negative optlen at the type level instead of depending upon (sometimes non-trivial) checks against this sprinkled all over the the place, in each and every implementation. Based upon work done by Arjan van de Ven and feedback from Linus Torvalds. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 07:12:20 +08:00
char __user *optval, unsigned int optlen)
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
{
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
switch (level) {
case SOL_RAW:
break;
case SOL_ICMPV6:
inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-15 14:30:45 +08:00
if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
return -EOPNOTSUPP;
return rawv6_seticmpfilter(sk, level, optname, optval, optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM)
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
break;
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
default:
return compat_ipv6_setsockopt(sk, level, optname,
optval, optlen);
[NET]: cleanup extra semicolons Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-21 08:09:22 +08:00
}
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
}
#endif
static int do_rawv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
struct raw6_sock *rp = raw6_sk(sk);
int val, len;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (get_user(len,optlen))
return -EFAULT;
switch (optname) {
case IPV6_CHECKSUM:
ipv6 RAW: Disallow IPPROTO_IPV6-level IPV6_CHECKSUM socket option on ICMPv6 sockets. RFC3542 tells that IPV6_CHECKSUM socket option in the IPPROTO_IPV6 level is not allowed on ICMPv6 sockets. IPPROTO_RAW level IPV6_CHECKSUM socket option (a Linux extension) is still allowed. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-25 12:30:38 +08:00
/*
* We allow getsockopt() for IPPROTO_IPV6-level
* IPV6_CHECKSUM socket option on ICMPv6 sockets
* since RFC3542 is silent about it.
*/
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (rp->checksum == 0)
val = -1;
else
val = rp->offset;
break;
default:
return -ENOPROTOOPT;
}
len = min_t(unsigned int, sizeof(int), len);
if (put_user(len, optlen))
return -EFAULT;
if (copy_to_user(optval,&val,len))
return -EFAULT;
return 0;
}
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
static int rawv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
switch (level) {
case SOL_RAW:
break;
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
case SOL_ICMPV6:
if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_geticmpfilter(sk, level, optname, optval, optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM)
break;
default:
return ipv6_getsockopt(sk, level, optname, optval, optlen);
[NET]: cleanup extra semicolons Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-21 08:09:22 +08:00
}
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname,
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
char __user *optval, int __user *optlen)
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
{
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
switch (level) {
case SOL_RAW:
break;
case SOL_ICMPV6:
inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-15 14:30:45 +08:00
if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
return -EOPNOTSUPP;
return rawv6_geticmpfilter(sk, level, optname, optval, optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM)
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
break;
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
default:
return compat_ipv6_getsockopt(sk, level, optname,
optval, optlen);
[NET]: cleanup extra semicolons Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-21 08:09:22 +08:00
}
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
}
#endif
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
switch (cmd) {
case SIOCOUTQ: {
int amount = sk_wmem_alloc_get(sk);
net: correct off-by-one write allocations reports commit 2b85a34e911bf483c27cfdd124aeb1605145dc80 (net: No more expensive sock_hold()/sock_put() on each tx) changed initial sk_wmem_alloc value. We need to take into account this offset when reporting sk_wmem_alloc to user, in PROC_FS files or various ioctls (SIOCOUTQ/TIOCOUTQ) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-18 10:05:41 +08:00
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
return put_user(amount, (int __user *)arg);
}
case SIOCINQ: {
struct sk_buff *skb;
int amount = 0;
spin_lock_bh(&sk->sk_receive_queue.lock);
skb = skb_peek(&sk->sk_receive_queue);
if (skb != NULL)
ipv6: Correct comparisons and calculations using skb->tail and skb-transport_header This corrects an regression introduced by "net: Use 16bits for *_headers fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In that case skb->tail will be a pointer whereas skb->transport_header will be an offset from head. This is corrected by using wrappers that ensure that comparisons and calculations are always made using pointers. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-29 04:34:26 +08:00
amount = skb_tail_pointer(skb) -
skb_transport_header(skb);
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
spin_unlock_bh(&sk->sk_receive_queue.lock);
return put_user(amount, (int __user *)arg);
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
default:
[IPV6] MROUTE: Support multicast forwarding. Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-03 08:22:53 +08:00
#ifdef CONFIG_IPV6_MROUTE
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
return ip6mr_ioctl(sk, cmd, (void __user *)arg);
[IPV6] MROUTE: Support multicast forwarding. Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-03 08:22:53 +08:00
#else
ipv6: Reduce switch/case indent Make the case labels the same indent as the switch. git diff -w shows 80 column reflowing, removal of a useless break after return, and moving open brace after case instead of separate line. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:43:08 +08:00
return -ENOIOCTLCMD;
[IPV6] MROUTE: Support multicast forwarding. Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-03 08:22:53 +08:00
#endif
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
}
net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-04 09:59:32 +08:00
#ifdef CONFIG_COMPAT
static int compat_rawv6_ioctl(struct sock *sk, unsigned int cmd, unsigned long arg)
{
switch (cmd) {
case SIOCOUTQ:
case SIOCINQ:
return -ENOIOCTLCMD;
default:
#ifdef CONFIG_IPV6_MROUTE
return ip6mr_compat_ioctl(sk, cmd, compat_ptr(arg));
#else
return -ENOIOCTLCMD;
#endif
}
}
#endif
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static void rawv6_close(struct sock *sk, long timeout)
{
inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-15 14:30:45 +08:00
if (inet_sk(sk)->inet_num == IPPROTO_RAW)
ipv6: remove unused parameter from ip6_ra_control Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-19 15:28:58 +08:00
ip6_ra_control(sk, -1);
[IPV6] MROUTE: Support multicast forwarding. Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-03 08:22:53 +08:00
ip6mr_sk_done(sk);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sk_common_release(sk);
}
net: change proto destroy method to return void Change struct proto destroy function pointer to return void. Noticed by Al Viro. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-15 08:04:49 +08:00
static void raw6_destroy(struct sock *sk)
raw: Raw socket leak. The program below just leaks the raw kernel socket int main() { int fd = socket(PF_INET, SOCK_RAW, IPPROTO_UDP); struct sockaddr_in addr; memset(&addr, 0, sizeof(addr)); inet_aton("127.0.0.1", &addr.sin_addr); addr.sin_family = AF_INET; addr.sin_port = htons(2048); sendto(fd, "a", 1, MSG_MORE, &addr, sizeof(addr)); return 0; } Corked packet is allocated via sock_wmalloc which holds the owner socket, so one should uncork it and flush all pending data on close. Do this in the same way as in UDP. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-05 06:16:12 +08:00
{
lock_sock(sk);
ip6_flush_pending_frames(sk);
release_sock(sk);
ipv6: Fix duplicate initialization of rawv6_prot.destroy In changeset 22dd485022f3d0b162ceb5e67d85de7c3806aa20 ("raw: Raw socket leak.") code was added so that we flush pending frames on raw sockets to avoid leaks. The ipv4 part was fine, but the ipv6 part was not done correctly. Unlike the ipv4 side, the ipv6 code already has a .destroy method for rawv6_prot. So now there were two assignments to this member, and what the compiler does is use the last one, effectively making the ipv6 parts of that changeset a NOP. Fix this by removing the: .destroy = inet6_destroy_sock, line, and adding an inet6_destroy_sock() call to the end of raw6_destroy(). Noticed by Al Viro. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-13 05:47:58 +08:00
net: change proto destroy method to return void Change struct proto destroy function pointer to return void. Noticed by Al Viro. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-15 08:04:49 +08:00
inet6_destroy_sock(sk);
raw: Raw socket leak. The program below just leaks the raw kernel socket int main() { int fd = socket(PF_INET, SOCK_RAW, IPPROTO_UDP); struct sockaddr_in addr; memset(&addr, 0, sizeof(addr)); inet_aton("127.0.0.1", &addr.sin_addr); addr.sin_family = AF_INET; addr.sin_port = htons(2048); sendto(fd, "a", 1, MSG_MORE, &addr, sizeof(addr)); return 0; } Corked packet is allocated via sock_wmalloc which holds the owner socket, so one should uncork it and flush all pending data on close. Do this in the same way as in UDP. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-05 06:16:12 +08:00
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static int rawv6_init_sk(struct sock *sk)
{
[IPV6] RAW: Add checksum default defines for MH. Add checksum default defines for mobility header(MH) which goes through raw socket. As the result kernel's behavior is to handle MH checksum as default. This patch also removes verifying inbound MH checksum at mip6_mh_filter() since it did not consider user specified checksum offset and was redundant check with raw socket code. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-07 16:07:39 +08:00
struct raw6_sock *rp = raw6_sk(sk);
inet: rename some inet_sock fields In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-15 14:30:45 +08:00
switch (inet_sk(sk)->inet_num) {
[IPV6] RAW: Add checksum default defines for MH. Add checksum default defines for mobility header(MH) which goes through raw socket. As the result kernel's behavior is to handle MH checksum as default. This patch also removes verifying inbound MH checksum at mip6_mh_filter() since it did not consider user specified checksum offset and was redundant check with raw socket code. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-07 16:07:39 +08:00
case IPPROTO_ICMPV6:
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
rp->checksum = 1;
rp->offset = 2;
[IPV6] RAW: Add checksum default defines for MH. Add checksum default defines for mobility header(MH) which goes through raw socket. As the result kernel's behavior is to handle MH checksum as default. This patch also removes verifying inbound MH checksum at mip6_mh_filter() since it did not consider user specified checksum offset and was redundant check with raw socket code. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-07 16:07:39 +08:00
break;
case IPPROTO_MH:
rp->checksum = 1;
rp->offset = 4;
break;
default:
break;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
net: return operator cleanup Change "return (EXPR);" to "return EXPR;" return is not a function, parentheses are not required. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-23 04:43:57 +08:00
return 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
struct proto rawv6_prot = {
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
.name = "RAWv6",
.owner = THIS_MODULE,
.close = rawv6_close,
raw: Raw socket leak. The program below just leaks the raw kernel socket int main() { int fd = socket(PF_INET, SOCK_RAW, IPPROTO_UDP); struct sockaddr_in addr; memset(&addr, 0, sizeof(addr)); inet_aton("127.0.0.1", &addr.sin_addr); addr.sin_family = AF_INET; addr.sin_port = htons(2048); sendto(fd, "a", 1, MSG_MORE, &addr, sizeof(addr)); return 0; } Corked packet is allocated via sock_wmalloc which holds the owner socket, so one should uncork it and flush all pending data on close. Do this in the same way as in UDP. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-05 06:16:12 +08:00
.destroy = raw6_destroy,
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
.connect = ip6_datagram_connect,
.disconnect = udp_disconnect,
.ioctl = rawv6_ioctl,
.init = rawv6_init_sk,
.setsockopt = rawv6_setsockopt,
.getsockopt = rawv6_getsockopt,
.sendmsg = rawv6_sendmsg,
.recvmsg = rawv6_recvmsg,
.bind = rawv6_bind,
.backlog_rcv = rawv6_rcv_skb,
[RAW]: Add raw_hashinfo member on struct proto. Sorry for the patch sequence confusion :| but I found that the similar thing can be done for raw sockets easily too late. Expand the proto.h union with the raw_hashinfo member and use it in raw_prot and rawv6_prot. This allows to drop the protocol specific versions of hash and unhash callbacks. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-23 07:56:51 +08:00
.hash = raw_hash_sk,
.unhash = raw_unhash_sk,
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
.obj_size = sizeof(struct raw6_sock),
[RAW]: Add raw_hashinfo member on struct proto. Sorry for the patch sequence confusion :| but I found that the similar thing can be done for raw sockets easily too late. Expand the proto.h union with the raw_hashinfo member and use it in raw_prot and rawv6_prot. This allows to drop the protocol specific versions of hash and unhash callbacks. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-23 07:56:51 +08:00
.h.raw_hash = &raw_v6_hashinfo,
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
#ifdef CONFIG_COMPAT
[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:48:35 +08:00
.compat_setsockopt = compat_rawv6_setsockopt,
.compat_getsockopt = compat_rawv6_getsockopt,
net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-04 09:59:32 +08:00
.compat_ioctl = compat_rawv6_ioctl,
[NET]: {get|set}sockopt compatibility layer This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21 14:45:21 +08:00
#endif
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
};
#ifdef CONFIG_PROC_FS
static int raw6_seq_show(struct seq_file *seq, void *v)
{
net: ipv6: Unify {raw,udp}6_sock_seq_show. udp6_sock_seq_show and raw6_sock_seq_show are identical, except the UDP version displays ports and the raw version displays the protocol. Refactor most of the code in these two functions into a new common ip6_dgram_sock_seq_show function, in preparation for using it to display ICMPv6 sockets as well. Also reduce the indentation in parts of include/net/transp_v6.h to improve readability. Compiles and displays reasonable results with CONFIG_IPV6={n,m,y} Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-31 23:05:48 +08:00
if (v == SEQ_START_TOKEN) {
seq_puts(seq, IPV6_SEQ_DGRAM_HEADER);
} else {
struct sock *sp = v;
__u16 srcp = inet_sk(sp)->inet_num;
ip6_dgram_sock_seq_show(seq, v, srcp, 0,
raw_seq_private(seq)->bucket);
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 0;
}
[NET]: Make all initialized struct seq_operations const. Make all initialized struct seq_operations in net/ const Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-11 14:07:31 +08:00
static const struct seq_operations raw6_seq_ops = {
[RAW]: Consolidate proc interface. Both ipv6/raw.c and ipv4/raw.c use the seq files to walk through the raw sockets hash and show them. The "walking" code is rather huge, but is identical in both cases. The difference is the hash table to walk over and the protocol family to check (this was not in the first virsion of the patch, which was noticed by YOSHIFUJI) Make the ->open store the needed hash table and the family on the allocated raw_iter_state and make the start/next/stop callbacks work with it. This removes most of the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-20 14:38:33 +08:00
.start = raw_seq_start,
.next = raw_seq_next,
.stop = raw_seq_stop,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.show = raw6_seq_show,
};
static int raw6_seq_open(struct inode *inode, struct file *file)
{
[RAW]: Wrong content of the /proc/net/raw6. The address of IPv6 raw sockets was shown in the wrong format, from IPv4 ones. The problem has been introduced by the commit 42a73808ed4f30b739eb52bcbb33a02fe62ceef5 ("[RAW]: Consolidate proc interface.") Thanks to Adrian Bunk who originally noticed the problem. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31 19:48:55 +08:00
return raw_seq_open(inode, file, &raw_v6_hashinfo, &raw6_seq_ops);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[PATCH] mark struct file_operations const 7 Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 16:55:35 +08:00
static const struct file_operations raw6_seq_fops = {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.owner = THIS_MODULE,
.open = raw6_seq_open,
.read = seq_read,
.llseek = seq_lseek,
[NETNS][RAW]: Make /proc/net/raw(6) show per-namespace socket list. Pull the struct net pointer up to the showing functions to filter the sockets depending on their namespaces. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:35:57 +08:00
.release = seq_release_net,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
};
net: spread __net_init, __net_exit __net_init/__net_exit are apparently not going away, so use them to full extent. In some cases __net_init was removed, because it was called from __net_exit code. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-17 11:35:32 +08:00
static int __net_init raw6_init_net(struct net *net)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
net: proc: change proc_net_fops_create to proc_create Right now, some modules such as bonding use proc_create to create proc entries under /proc/net/, and other modules such as ipv4 use proc_net_fops_create. It looks a little chaos.this patch changes all of proc_net_fops_create to proc_create. we can remove proc_net_fops_create after this patch. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 09:34:54 +08:00
if (!proc_create("raw6", S_IRUGO, net->proc_net, &raw6_seq_fops))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return -ENOMEM;
[NETNS][RAW]: Create the /proc/net/raw(6) in each namespace. To do so, just register the proper subsystem and create files in ->init callbacks. No other special per-namespace handling for raw sockets is required. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:36:50 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 0;
}
net: spread __net_init, __net_exit __net_init/__net_exit are apparently not going away, so use them to full extent. In some cases __net_init was removed, because it was called from __net_exit code. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-17 11:35:32 +08:00
static void __net_exit raw6_exit_net(struct net *net)
[NETNS][RAW]: Create the /proc/net/raw(6) in each namespace. To do so, just register the proper subsystem and create files in ->init callbacks. No other special per-namespace handling for raw sockets is required. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:36:50 +08:00
{
net: proc: change proc_net_remove to remove_proc_entry proc_net_remove is only used to remove proc entries that under /proc/net,it's not a general function for removing proc entries of netns. if we want to remove some proc entries which under /proc/net/stat/, we still need to call remove_proc_entry. this patch use remove_proc_entry to replace proc_net_remove. we can remove proc_net_remove after this patch. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 09:34:56 +08:00
remove_proc_entry("raw6", net->proc_net);
[NETNS][RAW]: Create the /proc/net/raw(6) in each namespace. To do so, just register the proper subsystem and create files in ->init callbacks. No other special per-namespace handling for raw sockets is required. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:36:50 +08:00
}
static struct pernet_operations raw6_net_ops = {
.init = raw6_init_net,
.exit = raw6_exit_net,
};
int __init raw6_proc_init(void)
{
return register_pernet_subsys(&raw6_net_ops);
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
void raw6_proc_exit(void)
{
[NETNS][RAW]: Create the /proc/net/raw(6) in each namespace. To do so, just register the proper subsystem and create files in ->init callbacks. No other special per-namespace handling for raw sockets is required. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-14 21:36:50 +08:00
unregister_pernet_subsys(&raw6_net_ops);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
#endif /* CONFIG_PROC_FS */
[IPV6]: make the protocol initialization to return an error code This patchset makes the different protocols to return an error code, so the af_inet6 module can check the initialization was correct or not. The raw6 was taken into account to be consistent with the rest of the protocols, but the registration is at the same place. Because the raw6 has its own init function, the proto and the ops structure can be moved inside the raw6.c file. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-11 18:25:35 +08:00
/* Same as inet6_dgram_ops, sans udp_poll. */
static const struct proto_ops inet6_sockraw_ops = {
.family = PF_INET6,
.owner = THIS_MODULE,
.release = inet6_release,
.bind = inet6_bind,
.connect = inet_dgram_connect, /* ok */
.socketpair = sock_no_socketpair, /* a do nothing */
.accept = sock_no_accept, /* a do nothing */
.getname = inet6_getname,
.poll = datagram_poll, /* ok */
.ioctl = inet6_ioctl, /* must change */
.listen = sock_no_listen, /* ok */
.shutdown = inet_shutdown, /* ok */
.setsockopt = sock_common_setsockopt, /* ok */
.getsockopt = sock_common_getsockopt, /* ok */
.sendmsg = inet_sendmsg, /* ok */
.recvmsg = sock_common_recvmsg, /* ok */
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};
static struct inet_protosw rawv6_protosw = {
.type = SOCK_RAW,
.protocol = IPPROTO_IP, /* wild card */
.prot = &rawv6_prot,
.ops = &inet6_sockraw_ops,
.no_check = UDP_CSUM_DEFAULT,
.flags = INET_PROTOSW_REUSE,
};
int __init rawv6_init(void)
{
int ret;
ret = inet6_register_protosw(&rawv6_protosw);
if (ret)
goto out;
out:
return ret;
}
[IPV6]: fix section mismatch warnings Removed useless and buggy __exit section in the different ipv6 subsystems. Otherwise they will be called inside an init section during rollbacking in case of an error in the protocol initialization. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-13 21:34:58 +08:00
void rawv6_exit(void)
[IPV6]: make the protocol initialization to return an error code This patchset makes the different protocols to return an error code, so the af_inet6 module can check the initialization was correct or not. The raw6 was taken into account to be consistent with the rest of the protocols, but the registration is at the same place. Because the raw6 has its own init function, the proto and the ops structure can be moved inside the raw6.c file. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-11 18:25:35 +08:00
{
inet6_unregister_protosw(&rawv6_protosw);
}