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OpenCloudOS-Kernel/net/ipv6/datagram.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
/*
* common UDP/RAW code
[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
*
* 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.
*/
[PATCH] capable/capability.h (net/) net: Use <linux/capability.h> where capable() is used. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12 04:17:47 +08:00
#include <linux/capability.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/errno.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/socket.h>
#include <linux/sockios.h>
#include <linux/in6.h>
#include <linux/ipv6.h>
#include <linux/route.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 <net/ipv6.h>
#include <net/ndisc.h>
#include <net/addrconf.h>
#include <net/transp_v6.h>
#include <net/ip6_route.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>
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/errqueue.h>
#include <asm/uaccess.h>
ipv6: check for IPv4 mapped addresses when connecting IPv6 sockets When support for binding to 'mapped INADDR_ANY (::ffff.0.0.0.0)' was added in 0f8d3c7ac3693d7b6c731bf2159273a59bf70e12 the rest of the code wasn't told so now it's possible to bind IPv6 datagram socket to ::ffff.0.0.0.0, connect it to another IPv4 address and it will all work except for getsockhame() which does not return the local address as expected. To give getsockname() something to work with check for 'mapped INADDR_ANY' when connecting and update the in-core source addresses appropriately. Signed-off-by: Max Matveev <makc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-05 18:56:30 +08:00
static inline int ipv6_mapped_addr_any(const struct in6_addr *a)
{
return (ipv6_addr_v4mapped(a) && (a->s6_addr32[3] == 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 ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
struct sockaddr_in6 *usin = (struct sockaddr_in6 *) uaddr;
struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
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 dst_entry *dst;
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
struct ip6_flowlabel *flowlabel = NULL;
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 ipv6_txoptions *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
int addr_type;
int err;
if (usin->sin6_family == AF_INET) {
if (__ipv6_only_sock(sk))
return -EAFNOSUPPORT;
err = ip4_datagram_connect(sk, uaddr, addr_len);
goto ipv4_connected;
}
if (addr_len < SIN6_LEN_RFC2133)
[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 -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
[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 (usin->sin6_family != AF_INET6)
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
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
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 = usin->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;
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
usin->sin6_addr = flowlabel->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
}
}
addr_type = ipv6_addr_type(&usin->sin6_addr);
if (addr_type == IPV6_ADDR_ANY) {
/*
* connect to self
*/
usin->sin6_addr.s6_addr[15] = 0x01;
}
daddr = &usin->sin6_addr;
if (addr_type == IPV6_ADDR_MAPPED) {
struct sockaddr_in sin;
if (__ipv6_only_sock(sk)) {
err = -ENETUNREACH;
goto out;
}
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = daddr->s6_addr32[3];
sin.sin_port = usin->sin6_port;
[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
err = ip4_datagram_connect(sk,
(struct sockaddr*) &sin,
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
sizeof(sin));
ipv4_connected:
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
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
ipv6_addr_set_v4mapped(inet->inet_daddr, &np->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
ipv6: check for IPv4 mapped addresses when connecting IPv6 sockets When support for binding to 'mapped INADDR_ANY (::ffff.0.0.0.0)' was added in 0f8d3c7ac3693d7b6c731bf2159273a59bf70e12 the rest of the code wasn't told so now it's possible to bind IPv6 datagram socket to ::ffff.0.0.0.0, connect it to another IPv4 address and it will all work except for getsockhame() which does not return the local address as expected. To give getsockname() something to work with check for 'mapped INADDR_ANY' when connecting and update the in-core source addresses appropriately. Signed-off-by: Max Matveev <makc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-05 18:56:30 +08:00
if (ipv6_addr_any(&np->saddr) ||
ipv6_mapped_addr_any(&np->saddr))
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
ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr);
IPv6: use ipv6_addr_set_v4mapped() Might as well use the ipv6_addr_set_v4mapped() inline we created last year. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-08 04:58:25 +08:00
ipv6: check for IPv4 mapped addresses when connecting IPv6 sockets When support for binding to 'mapped INADDR_ANY (::ffff.0.0.0.0)' was added in 0f8d3c7ac3693d7b6c731bf2159273a59bf70e12 the rest of the code wasn't told so now it's possible to bind IPv6 datagram socket to ::ffff.0.0.0.0, connect it to another IPv4 address and it will all work except for getsockhame() which does not return the local address as expected. To give getsockname() something to work with check for 'mapped INADDR_ANY' when connecting and update the in-core source addresses appropriately. Signed-off-by: Max Matveev <makc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-05 18:56:30 +08:00
if (ipv6_addr_any(&np->rcv_saddr) ||
ipv6_mapped_addr_any(&np->rcv_saddr)) {
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
ipv6_addr_set_v4mapped(inet->inet_rcv_saddr,
&np->rcv_saddr);
udp: add rehash on connect() commit 30fff923 introduced in linux-2.6.33 (udp: bind() optimisation) added a secondary hash on UDP, hashed on (local addr, local port). Problem is that following sequence : fd = socket(...) connect(fd, &remote, ...) not only selects remote end point (address and port), but also sets local address, while UDP stack stored in secondary hash table the socket while its local address was INADDR_ANY (or ipv6 equivalent) Sequence is : - autobind() : choose a random local port, insert socket in hash tables [while local address is INADDR_ANY] - connect() : set remote address and port, change local address to IP given by a route lookup. When an incoming UDP frame comes, if more than 10 sockets are found in primary hash table, we switch to secondary table, and fail to find socket because its local address changed. One solution to this problem is to rehash datagram socket if needed. We add a new rehash(struct socket *) method in "struct proto", and implement this method for UDP v4 & v6, using a common helper. This rehashing only takes care of secondary hash table, since primary hash (based on local port only) is not changed. Reported-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-08 13:08:44 +08:00
if (sk->sk_prot->rehash)
sk->sk_prot->rehash(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;
}
if (addr_type&IPV6_ADDR_LINKLOCAL) {
if (addr_len >= sizeof(struct sockaddr_in6) &&
usin->sin6_scope_id) {
if (sk->sk_bound_dev_if &&
sk->sk_bound_dev_if != usin->sin6_scope_id) {
err = -EINVAL;
goto out;
}
sk->sk_bound_dev_if = usin->sin6_scope_id;
}
[IPV6]: IPV6_MULTICAST_IF setting is ignored on link-local connect() Signed-off-by: Brian Haley <brian.haley@hp.com> Acked-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-09 15:52:21 +08:00
if (!sk->sk_bound_dev_if && (addr_type & IPV6_ADDR_MULTICAST))
sk->sk_bound_dev_if = np->mcast_oif;
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
/* Connect to link-local address requires an interface */
if (!sk->sk_bound_dev_if) {
err = -EINVAL;
goto out;
}
}
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->daddr = *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
np->flow_label = 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
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_dport = usin->sin6_port;
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 for a route to destination an obtain the
* destination cache for it.
*/
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 = sk->sk_protocol;
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 = np->daddr;
fl6.saddr = np->saddr;
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 = sk->sk_bound_dev_if;
fl6.flowi6_mark = sk->sk_mark;
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
fl6.fl6_dport = inet->inet_dport;
fl6.fl6_sport = inet->inet_sport;
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 && (addr_type&IPV6_ADDR_MULTICAST))
fl6.flowi6_oif = np->mcast_oif;
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
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
[MLSXFRM]: Add flow labeling This labels the flows that could utilize IPSec xfrms at the points the flows are defined so that IPSec policy and SAs at the right label can be used. The following protos are currently not handled, but they should continue to be able to use single-labeled IPSec like they currently do. ipmr ip_gre ipip igmp sit sctp ip6_tunnel (IPv6 over IPv6 tunnel device) decnet Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-05 14:12:42 +08:00
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
opt = flowlabel ? flowlabel->opt : np->opt;
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
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
err = 0;
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
/* source address lookup done in ip6_dst_lookup */
if (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
np->saddr = fl6.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
if (ipv6_addr_any(&np->rcv_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
np->rcv_saddr = fl6.saddr;
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 = LOOPBACK4_IPV6;
udp: add rehash on connect() commit 30fff923 introduced in linux-2.6.33 (udp: bind() optimisation) added a secondary hash on UDP, hashed on (local addr, local port). Problem is that following sequence : fd = socket(...) connect(fd, &remote, ...) not only selects remote end point (address and port), but also sets local address, while UDP stack stored in secondary hash table the socket while its local address was INADDR_ANY (or ipv6 equivalent) Sequence is : - autobind() : choose a random local port, insert socket in hash tables [while local address is INADDR_ANY] - connect() : set remote address and port, change local address to IP given by a route lookup. When an incoming UDP frame comes, if more than 10 sockets are found in primary hash table, we switch to secondary table, and fail to find socket because its local address changed. One solution to this problem is to rehash datagram socket if needed. We add a new rehash(struct socket *) method in "struct proto", and implement this method for UDP v4 & v6, using a common helper. This rehashing only takes care of secondary hash table, since primary hash (based on local port only) is not changed. Reported-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-08 13:08:44 +08:00
if (sk->sk_prot->rehash)
sk->sk_prot->rehash(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
}
ip6_dst_store(sk, dst,
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_addr_equal(&fl6.daddr, &np->daddr) ?
[IPV6]: Cache source address as well in ipv6_pinfo{}. Based on MIPL2 kernel patch. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-30 08:15:09 +08:00
&np->daddr : NULL,
#ifdef CONFIG_IPV6_SUBTREES
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_addr_equal(&fl6.saddr, &np->saddr) ?
[IPV6]: Cache source address as well in ipv6_pinfo{}. Based on MIPL2 kernel patch. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-30 08:15:09 +08:00
&np->saddr :
#endif
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->sk_state = TCP_ESTABLISHED;
out:
fl6_sock_release(flowlabel);
return err;
}
[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
void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
[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
__be16 port, u32 info, u8 *payload)
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 ipv6_pinfo *np = inet6_sk(sk);
[ICMP6]: Introduce icmp6_hdr() For consistency with all the other skb->h.raw accessors. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-14 01:03:22 +08:00
struct icmp6hdr *icmph = icmp6_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
struct sock_exterr_skb *serr;
if (!np->recverr)
return;
skb = skb_clone(skb, GFP_ATOMIC);
if (!skb)
return;
IPv6: fix IPV6_RECVERR handling of locally-generated errors I noticed when I added support for IPV6_DONTFRAG that if you set IPV6_RECVERR and tried to send a UDP packet larger than 64K to an IPv6 destination, you'd correctly get an EMSGSIZE, but reading from MSG_ERRQUEUE returned the incorrect address in the cmsg: struct msghdr: msg_name 0x7fff8f3c96d0 msg_namelen 28 struct sockaddr_in6: sin6_family 10 sin6_port 7639 sin6_flowinfo 0 sin6_addr ::ffff:38.32.0.0 sin6_scope_id 0 ((null)) It should have returned this in my case: struct msghdr: msg_name 0x7fffd866b510 msg_namelen 28 struct sockaddr_in6: sin6_family 10 sin6_port 7639 sin6_flowinfo 0 sin6_addr 2620:0:a09:e000:21f:29ff:fe57:f88b sin6_scope_id 0 ((null)) The problem is that ipv6_recv_error() assumes that if the error wasn't generated by ICMPv6, it's an IPv4 address sitting there, and proceeds to create a v4-mapped address from it. Change ipv6_icmp_error() and ipv6_local_error() to set skb->protocol to htons(ETH_P_IPV6) so that ipv6_recv_error() knows the address sitting right after the extended error is IPv6, else it will incorrectly map the first octet into an IPv4-mapped IPv6 address in the cmsg structure returned in a recvmsg() call to obtain the error. Signed-off-by: Brian Haley <brian.haley@hp.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-03 23:44:27 +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
serr = SKB_EXT_ERR(skb);
serr->ee.ee_errno = err;
serr->ee.ee_origin = SO_EE_ORIGIN_ICMP6;
[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
serr->ee.ee_type = icmph->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
serr->ee.ee_code = icmph->icmp6_code;
serr->ee.ee_pad = 0;
serr->ee.ee_info = info;
serr->ee.ee_data = 0;
[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
serr->addr_offset = (u8 *)&(((struct ipv6hdr *)(icmph + 1))->daddr) -
skb_network_header(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
serr->port = port;
__skb_pull(skb, payload - skb->data);
[SK_BUFF]: More skb_reset_transport_header conversions These are a bit more subtle, they are of this type: - skb->h.raw = payload; __skb_pull(skb, payload - skb->data); + skb_reset_transport_header(skb); __skb_pull results in: skb->data = skb->data + payload - skb->data; skb->data = payload; So after __skb_pull we have skb->data pointing to payload and we can just call skb_reset_transport_header(skb), that will do: skb->h.raw = payload; The others are similar, allowing us to get rid of some more cases where a pointer was being attributed to the layer headers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-14 04:10:43 +08:00
skb_reset_transport_header(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 (sock_queue_err_skb(sk, skb))
kfree_skb(skb);
}
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
void ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 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 ipv6_pinfo *np = inet6_sk(sk);
struct sock_exterr_skb *serr;
struct ipv6hdr *iph;
struct sk_buff *skb;
if (!np->recverr)
return;
skb = alloc_skb(sizeof(struct ipv6hdr), GFP_ATOMIC);
if (!skb)
return;
IPv6: fix IPV6_RECVERR handling of locally-generated errors I noticed when I added support for IPV6_DONTFRAG that if you set IPV6_RECVERR and tried to send a UDP packet larger than 64K to an IPv6 destination, you'd correctly get an EMSGSIZE, but reading from MSG_ERRQUEUE returned the incorrect address in the cmsg: struct msghdr: msg_name 0x7fff8f3c96d0 msg_namelen 28 struct sockaddr_in6: sin6_family 10 sin6_port 7639 sin6_flowinfo 0 sin6_addr ::ffff:38.32.0.0 sin6_scope_id 0 ((null)) It should have returned this in my case: struct msghdr: msg_name 0x7fffd866b510 msg_namelen 28 struct sockaddr_in6: sin6_family 10 sin6_port 7639 sin6_flowinfo 0 sin6_addr 2620:0:a09:e000:21f:29ff:fe57:f88b sin6_scope_id 0 ((null)) The problem is that ipv6_recv_error() assumes that if the error wasn't generated by ICMPv6, it's an IPv4 address sitting there, and proceeds to create a v4-mapped address from it. Change ipv6_icmp_error() and ipv6_local_error() to set skb->protocol to htons(ETH_P_IPV6) so that ipv6_recv_error() knows the address sitting right after the extended error is IPv6, else it will incorrectly map the first octet into an IPv4-mapped IPv6 address in the cmsg structure returned in a recvmsg() call to obtain the error. Signed-off-by: Brian Haley <brian.haley@hp.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-03 23:44:27 +08:00
skb->protocol = htons(ETH_P_IPV6);
[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, sizeof(struct ipv6hdr));
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);
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
iph->daddr = 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
serr = SKB_EXT_ERR(skb);
serr->ee.ee_errno = err;
serr->ee.ee_origin = SO_EE_ORIGIN_LOCAL;
[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
serr->ee.ee_type = 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
serr->ee.ee_code = 0;
serr->ee.ee_pad = 0;
serr->ee.ee_info = info;
serr->ee.ee_data = 0;
[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
serr->addr_offset = (u8 *)&iph->daddr - skb_network_header(skb);
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
serr->port = fl6->fl6_dport;
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]: Convert skb->tail to sk_buff_data_t So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes on 64bit architectures, allowing us to combine the 4 bytes hole left by the layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4 64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN... :-) Many calculations that previously required that skb->{transport,network, mac}_header be first converted to a pointer now can be done directly, being meaningful as offsets or pointers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20 11:29:13 +08:00
__skb_pull(skb, skb_tail_pointer(skb) - skb->data);
[SK_BUFF]: More skb_reset_transport_header conversions These are a bit more subtle, they are of this type: - skb->h.raw = payload; __skb_pull(skb, payload - skb->data); + skb_reset_transport_header(skb); __skb_pull results in: skb->data = skb->data + payload - skb->data; skb->data = payload; So after __skb_pull we have skb->data pointing to payload and we can just call skb_reset_transport_header(skb), that will do: skb->h.raw = payload; The others are similar, allowing us to get rid of some more cases where a pointer was being attributed to the layer headers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-14 04:10:43 +08:00
skb_reset_transport_header(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 (sock_queue_err_skb(sk, skb))
kfree_skb(skb);
}
ipv6: Convert to use flowi6 where applicable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-13 05:22:43 +08:00
void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu)
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
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct ipv6hdr *iph;
struct sk_buff *skb;
struct ip6_mtuinfo *mtu_info;
if (!np->rxopt.bits.rxpmtu)
return;
skb = alloc_skb(sizeof(struct ipv6hdr), GFP_ATOMIC);
if (!skb)
return;
skb_put(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
iph = ipv6_hdr(skb);
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
iph->daddr = fl6->daddr;
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
mtu_info = IP6CBMTU(skb);
mtu_info->ip6m_mtu = mtu;
mtu_info->ip6m_addr.sin6_family = AF_INET6;
mtu_info->ip6m_addr.sin6_port = 0;
mtu_info->ip6m_addr.sin6_flowinfo = 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
mtu_info->ip6m_addr.sin6_scope_id = fl6->flowi6_oif;
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
mtu_info->ip6m_addr.sin6_addr = ipv6_hdr(skb)->daddr;
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
__skb_pull(skb, skb_tail_pointer(skb) - skb->data);
skb_reset_transport_header(skb);
skb = xchg(&np->rxpmtu, skb);
kfree_skb(skb);
}
[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
* Handle MSG_ERRQUEUE
*/
int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct sock_exterr_skb *serr;
struct sk_buff *skb, *skb2;
struct sockaddr_in6 *sin;
struct {
struct sock_extended_err ee;
struct sockaddr_in6 offender;
} errhdr;
int err;
int copied;
err = -EAGAIN;
skb = skb_dequeue(&sk->sk_error_queue);
if (skb == NULL)
goto out;
copied = skb->len;
if (copied > len) {
msg->msg_flags |= MSG_TRUNC;
copied = len;
}
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
if (err)
goto out_free_skb;
sock_recv_timestamp(msg, sk, skb);
serr = SKB_EXT_ERR(skb);
sin = (struct sockaddr_in6 *)msg->msg_name;
if (sin) {
[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
const unsigned char *nh = skb_network_header(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
sin->sin6_family = AF_INET6;
sin->sin6_flowinfo = 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
sin->sin6_port = serr->port;
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
sin->sin6_scope_id = 0;
IPv6: fix IPV6_RECVERR handling of locally-generated errors I noticed when I added support for IPV6_DONTFRAG that if you set IPV6_RECVERR and tried to send a UDP packet larger than 64K to an IPv6 destination, you'd correctly get an EMSGSIZE, but reading from MSG_ERRQUEUE returned the incorrect address in the cmsg: struct msghdr: msg_name 0x7fff8f3c96d0 msg_namelen 28 struct sockaddr_in6: sin6_family 10 sin6_port 7639 sin6_flowinfo 0 sin6_addr ::ffff:38.32.0.0 sin6_scope_id 0 ((null)) It should have returned this in my case: struct msghdr: msg_name 0x7fffd866b510 msg_namelen 28 struct sockaddr_in6: sin6_family 10 sin6_port 7639 sin6_flowinfo 0 sin6_addr 2620:0:a09:e000:21f:29ff:fe57:f88b sin6_scope_id 0 ((null)) The problem is that ipv6_recv_error() assumes that if the error wasn't generated by ICMPv6, it's an IPv4 address sitting there, and proceeds to create a v4-mapped address from it. Change ipv6_icmp_error() and ipv6_local_error() to set skb->protocol to htons(ETH_P_IPV6) so that ipv6_recv_error() knows the address sitting right after the extended error is IPv6, else it will incorrectly map the first octet into an IPv4-mapped IPv6 address in the cmsg structure returned in a recvmsg() call to obtain the error. Signed-off-by: Brian Haley <brian.haley@hp.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-03 23:44:27 +08:00
if (skb->protocol == htons(ETH_P_IPV6)) {
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
sin->sin6_addr =
*(struct in6_addr *)(nh + serr->addr_offset);
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->sndflow)
[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
sin->sin6_flowinfo =
(*(__be32 *)(nh + serr->addr_offset - 24) &
IPV6_FLOWINFO_MASK);
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 (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
sin->sin6_scope_id = IP6CB(skb)->iif;
} else {
IPv6: use ipv6_addr_set_v4mapped() Might as well use the ipv6_addr_set_v4mapped() inline we created last year. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-08 04:58:25 +08:00
ipv6_addr_set_v4mapped(*(__be32 *)(nh + serr->addr_offset),
&sin->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
}
}
memcpy(&errhdr.ee, &serr->ee, sizeof(struct sock_extended_err));
sin = &errhdr.offender;
sin->sin6_family = AF_UNSPEC;
if (serr->ee.ee_origin != SO_EE_ORIGIN_LOCAL) {
sin->sin6_family = AF_INET6;
sin->sin6_flowinfo = 0;
sin->sin6_scope_id = 0;
IPv6: fix IPV6_RECVERR handling of locally-generated errors I noticed when I added support for IPV6_DONTFRAG that if you set IPV6_RECVERR and tried to send a UDP packet larger than 64K to an IPv6 destination, you'd correctly get an EMSGSIZE, but reading from MSG_ERRQUEUE returned the incorrect address in the cmsg: struct msghdr: msg_name 0x7fff8f3c96d0 msg_namelen 28 struct sockaddr_in6: sin6_family 10 sin6_port 7639 sin6_flowinfo 0 sin6_addr ::ffff:38.32.0.0 sin6_scope_id 0 ((null)) It should have returned this in my case: struct msghdr: msg_name 0x7fffd866b510 msg_namelen 28 struct sockaddr_in6: sin6_family 10 sin6_port 7639 sin6_flowinfo 0 sin6_addr 2620:0:a09:e000:21f:29ff:fe57:f88b sin6_scope_id 0 ((null)) The problem is that ipv6_recv_error() assumes that if the error wasn't generated by ICMPv6, it's an IPv4 address sitting there, and proceeds to create a v4-mapped address from it. Change ipv6_icmp_error() and ipv6_local_error() to set skb->protocol to htons(ETH_P_IPV6) so that ipv6_recv_error() knows the address sitting right after the extended error is IPv6, else it will incorrectly map the first octet into an IPv4-mapped IPv6 address in the cmsg structure returned in a recvmsg() call to obtain the error. Signed-off-by: Brian Haley <brian.haley@hp.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-03 23:44:27 +08:00
if (skb->protocol == htons(ETH_P_IPV6)) {
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
sin->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
if (np->rxopt.all)
datagram_recv_ctl(sk, msg, skb);
if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
sin->sin6_scope_id = IP6CB(skb)->iif;
} else {
struct inet_sock *inet = inet_sk(sk);
IPv6: use ipv6_addr_set_v4mapped() Might as well use the ipv6_addr_set_v4mapped() inline we created last year. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-08 04:58:25 +08:00
ipv6_addr_set_v4mapped(ip_hdr(skb)->saddr,
&sin->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 (inet->cmsg_flags)
ip_cmsg_recv(msg, skb);
}
}
put_cmsg(msg, SOL_IPV6, IPV6_RECVERR, sizeof(errhdr), &errhdr);
/* Now we could try to dump offended packet options */
msg->msg_flags |= MSG_ERRQUEUE;
err = copied;
/* Reset and regenerate socket error */
[IPV4/IPV6]: Replace spin_lock_irq with spin_lock_bh In light of my recent patch to net/ipv4/udp.c that replaced the spin_lock_irq calls on the receive queue lock with spin_lock_bh, here is a similar patch for all other occurences of spin_lock_irq on receive/error queue locks in IPv4 and IPv6. In these stacks, we know that they can only be entered from user or softirq context. Therefore it's safe to disable BH only. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-19 13:56:18 +08:00
spin_lock_bh(&sk->sk_error_queue.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
sk->sk_err = 0;
if ((skb2 = skb_peek(&sk->sk_error_queue)) != NULL) {
sk->sk_err = SKB_EXT_ERR(skb2)->ee.ee_errno;
[IPV4/IPV6]: Replace spin_lock_irq with spin_lock_bh In light of my recent patch to net/ipv4/udp.c that replaced the spin_lock_irq calls on the receive queue lock with spin_lock_bh, here is a similar patch for all other occurences of spin_lock_irq on receive/error queue locks in IPv4 and IPv6. In these stacks, we know that they can only be entered from user or softirq context. Therefore it's safe to disable BH only. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-19 13:56:18 +08:00
spin_unlock_bh(&sk->sk_error_queue.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
sk->sk_error_report(sk);
} else {
[IPV4/IPV6]: Replace spin_lock_irq with spin_lock_bh In light of my recent patch to net/ipv4/udp.c that replaced the spin_lock_irq calls on the receive queue lock with spin_lock_bh, here is a similar patch for all other occurences of spin_lock_irq on receive/error queue locks in IPv4 and IPv6. In these stacks, we know that they can only be entered from user or softirq context. Therefore it's safe to disable BH only. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-19 13:56:18 +08:00
spin_unlock_bh(&sk->sk_error_queue.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
}
[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_free_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
kfree_skb(skb);
out:
return err;
}
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
/*
* Handle IPV6_RECVPATHMTU
*/
int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct sk_buff *skb;
struct sockaddr_in6 *sin;
struct ip6_mtuinfo mtu_info;
int err;
int copied;
err = -EAGAIN;
skb = xchg(&np->rxpmtu, NULL);
if (skb == NULL)
goto out;
copied = skb->len;
if (copied > len) {
msg->msg_flags |= MSG_TRUNC;
copied = len;
}
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
if (err)
goto out_free_skb;
sock_recv_timestamp(msg, sk, skb);
memcpy(&mtu_info, IP6CBMTU(skb), sizeof(mtu_info));
sin = (struct sockaddr_in6 *)msg->msg_name;
if (sin) {
sin->sin6_family = AF_INET6;
sin->sin6_flowinfo = 0;
sin->sin6_port = 0;
sin->sin6_scope_id = mtu_info.ip6m_addr.sin6_scope_id;
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
sin->sin6_addr = mtu_info.ip6m_addr.sin6_addr;
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
}
put_cmsg(msg, SOL_IPV6, IPV6_PATHMTU, sizeof(mtu_info), &mtu_info);
err = copied;
out_free_skb:
kfree_skb(skb);
out:
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
int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct inet6_skb_parm *opt = IP6CB(skb);
[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
unsigned char *nh = skb_network_header(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.bits.rxinfo) {
struct in6_pktinfo src_info;
src_info.ipi6_ifindex = opt->iif;
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
src_info.ipi6_addr = ipv6_hdr(skb)->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
put_cmsg(msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxhlim) {
[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
int hlim = ipv6_hdr(skb)->hop_limit;
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
put_cmsg(msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim);
}
[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
if (np->rxopt.bits.rxtclass) {
ipv6: helper function to get tclass Implement helper inline function to get traffic class from IPv6 header. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-09 17:34:41 +08:00
int tclass = ipv6_tclass(ipv6_hdr(skb));
[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
put_cmsg(msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
}
[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
if (np->rxopt.bits.rxflow && (*(__be32 *)nh & IPV6_FLOWINFO_MASK)) {
__be32 flowinfo = *(__be32 *)nh & IPV6_FLOWINFO_MASK;
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
put_cmsg(msg, SOL_IPV6, IPV6_FLOWINFO, sizeof(flowinfo), &flowinfo);
}
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
/* HbH is allowed only once */
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.bits.hopopts && opt->hop) {
[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
u8 *ptr = nh + opt->hop;
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
put_cmsg(msg, SOL_IPV6, IPV6_HOPOPTS, (ptr[1]+1)<<3, ptr);
}
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
if (opt->lastopt &&
(np->rxopt.bits.dstopts || np->rxopt.bits.srcrt)) {
/*
* Silly enough, but we need to reparse in order to
* report extension headers (except for HbH)
* in order.
*
[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
* Also note that IPV6_RECVRTHDRDSTOPTS is NOT
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
* (and WILL NOT be) defined because
* IPV6_RECVDSTOPTS is more generic. --yoshfuji
*/
unsigned int off = sizeof(struct ipv6hdr);
[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
u8 nexthdr = ipv6_hdr(skb)->nexthdr;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
while (off <= opt->lastopt) {
unsigned len;
[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
u8 *ptr = nh + off;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
switch(nexthdr) {
case IPPROTO_DSTOPTS:
nexthdr = ptr[0];
len = (ptr[1] + 1) << 3;
if (np->rxopt.bits.dstopts)
put_cmsg(msg, SOL_IPV6, IPV6_DSTOPTS, len, ptr);
break;
case IPPROTO_ROUTING:
nexthdr = ptr[0];
len = (ptr[1] + 1) << 3;
if (np->rxopt.bits.srcrt)
put_cmsg(msg, SOL_IPV6, IPV6_RTHDR, len, ptr);
break;
case IPPROTO_AH:
nexthdr = ptr[0];
[IPV6]: Fix calculation of AH length during filling ancillary data. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-11-20 11:21:59 +08:00
len = (ptr[1] + 2) << 2;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
break;
default:
nexthdr = ptr[0];
len = (ptr[1] + 1) << 3;
break;
}
off += len;
}
}
/* socket options in old style */
if (np->rxopt.bits.rxoinfo) {
struct in6_pktinfo src_info;
src_info.ipi6_ifindex = opt->iif;
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
src_info.ipi6_addr = ipv6_hdr(skb)->daddr;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
put_cmsg(msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxohlim) {
[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
int hlim = ipv6_hdr(skb)->hop_limit;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
put_cmsg(msg, SOL_IPV6, IPV6_2292HOPLIMIT, sizeof(hlim), &hlim);
}
if (np->rxopt.bits.ohopopts && opt->hop) {
[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
u8 *ptr = nh + opt->hop;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
put_cmsg(msg, SOL_IPV6, IPV6_2292HOPOPTS, (ptr[1]+1)<<3, ptr);
}
if (np->rxopt.bits.odstopts && opt->dst0) {
[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
u8 *ptr = nh + opt->dst0;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
put_cmsg(msg, SOL_IPV6, IPV6_2292DSTOPTS, (ptr[1]+1)<<3, ptr);
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]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
if (np->rxopt.bits.osrcrt && opt->srcrt) {
[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
struct ipv6_rt_hdr *rthdr = (struct ipv6_rt_hdr *)(nh + opt->srcrt);
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
put_cmsg(msg, SOL_IPV6, IPV6_2292RTHDR, (rthdr->hdrlen+1) << 3, rthdr);
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]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
if (np->rxopt.bits.odstopts && opt->dst1) {
[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
u8 *ptr = nh + opt->dst1;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
put_cmsg(msg, SOL_IPV6, IPV6_2292DSTOPTS, (ptr[1]+1)<<3, ptr);
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
}
tproxy: added tproxy sockopt interface in the IPV6 layer Support for IPV6_RECVORIGDSTADDR sockopt for UDP sockets were contributed by Harry Mason. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21 22:08:28 +08:00
if (np->rxopt.bits.rxorigdstaddr) {
struct sockaddr_in6 sin6;
net: fix some sparse errors make C=2 CF="-D__CHECK_ENDIAN__" M=net And fix flowi4_init_output() prototype for sport Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-17 03:27:39 +08:00
__be16 *ports = (__be16 *) skb_transport_header(skb);
tproxy: added tproxy sockopt interface in the IPV6 layer Support for IPV6_RECVORIGDSTADDR sockopt for UDP sockets were contributed by Harry Mason. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21 22:08:28 +08:00
if (skb_transport_offset(skb) + 4 <= skb->len) {
/* All current transport protocols have the port numbers in the
* first four bytes of the transport header and this function is
* written with this assumption in mind.
*/
sin6.sin6_family = AF_INET6;
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)->daddr;
tproxy: added tproxy sockopt interface in the IPV6 layer Support for IPV6_RECVORIGDSTADDR sockopt for UDP sockets were contributed by Harry Mason. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21 22:08:28 +08:00
sin6.sin6_port = ports[1];
sin6.sin6_flowinfo = 0;
sin6.sin6_scope_id = 0;
put_cmsg(msg, SOL_IPV6, IPV6_ORIGDSTADDR, sizeof(sin6), &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
return 0;
}
net: relax PKTINFO non local ipv6 udp xmit check Allow transparent sockets to be less restrictive about the source ip of ipv6 udp packets being sent. Google-Bug-Id: 5018138 Signed-off-by: Maciej Żenczykowski <maze@google.com> CC: "Erik Kline" <ek@google.com> CC: "Lorenzo Colitti" <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-28 20:35:31 +08:00
int datagram_send_ctl(struct net *net, struct sock *sk,
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 msghdr *msg, 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
struct ipv6_txoptions *opt,
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 *hlimit, int *tclass, int *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
{
struct in6_pktinfo *src_info;
struct cmsghdr *cmsg;
struct ipv6_rt_hdr *rthdr;
struct ipv6_opt_hdr *hdr;
int len;
int err = 0;
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
int addr_type;
if (!CMSG_OK(msg, cmsg)) {
err = -EINVAL;
goto exit_f;
}
if (cmsg->cmsg_level != SOL_IPV6)
continue;
switch (cmsg->cmsg_type) {
[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
case IPV6_PKTINFO:
case IPV6_2292PKTINFO:
[IPV6]: Check outgoing interface even if source address is unspecified. The outgoing interface index (ipi6_ifindex) in IPV6_PKTINFO ancillary data, is not checked if the source address (ipi6_addr) is unspecified. If the ipi6_ifindex is the not-exist interface, it should be fail. Based on patch from Shan Wei <shanwei@cn.fujitsu.com> and Brian Haley <brian.haley@hp.com>. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-04 12:01:37 +08:00
{
struct net_device *dev = 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
if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct in6_pktinfo))) {
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;
goto exit_f;
}
src_info = (struct in6_pktinfo *)CMSG_DATA(cmsg);
[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 (src_info->ipi6_ifindex) {
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 &&
src_info->ipi6_ifindex != fl6->flowi6_oif)
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;
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 = src_info->ipi6_ifindex;
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]: Check outgoing interface even if source address is unspecified. The outgoing interface index (ipi6_ifindex) in IPV6_PKTINFO ancillary data, is not checked if the source address (ipi6_addr) is unspecified. If the ipi6_ifindex is the not-exist interface, it should be fail. Based on patch from Shan Wei <shanwei@cn.fujitsu.com> and Brian Haley <brian.haley@hp.com>. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-04 12:01:37 +08:00
addr_type = __ipv6_addr_type(&src_info->ipi6_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
ipv6: no more dev_put() in datagram_send_ctl() Avoids touching device refcount in datagram_send_ctl(), thanks to RCU Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 19:21:06 +08:00
rcu_read_lock();
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) {
dev = dev_get_by_index_rcu(net, fl6->flowi6_oif);
ipv6: no more dev_put() in datagram_send_ctl() Avoids touching device refcount in datagram_send_ctl(), thanks to RCU Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 19:21:06 +08:00
if (!dev) {
rcu_read_unlock();
[IPV6]: Check outgoing interface even if source address is unspecified. The outgoing interface index (ipi6_ifindex) in IPV6_PKTINFO ancillary data, is not checked if the source address (ipi6_addr) is unspecified. If the ipi6_ifindex is the not-exist interface, it should be fail. Based on patch from Shan Wei <shanwei@cn.fujitsu.com> and Brian Haley <brian.haley@hp.com>. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-04 12:01:37 +08:00
return -ENODEV;
ipv6: no more dev_put() in datagram_send_ctl() Avoids touching device refcount in datagram_send_ctl(), thanks to RCU Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 19:21:06 +08:00
}
} else if (addr_type & IPV6_ADDR_LINKLOCAL) {
rcu_read_unlock();
[IPV6]: Check outgoing interface even if source address is unspecified. The outgoing interface index (ipi6_ifindex) in IPV6_PKTINFO ancillary data, is not checked if the source address (ipi6_addr) is unspecified. If the ipi6_ifindex is the not-exist interface, it should be fail. Based on patch from Shan Wei <shanwei@cn.fujitsu.com> and Brian Haley <brian.haley@hp.com>. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-04 12:01:37 +08:00
return -EINVAL;
ipv6: no more dev_put() in datagram_send_ctl() Avoids touching device refcount in datagram_send_ctl(), thanks to RCU Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 19:21:06 +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
[IPV6]: Check outgoing interface even if source address is unspecified. The outgoing interface index (ipi6_ifindex) in IPV6_PKTINFO ancillary data, is not checked if the source address (ipi6_addr) is unspecified. If the ipi6_ifindex is the not-exist interface, it should be fail. Based on patch from Shan Wei <shanwei@cn.fujitsu.com> and Brian Haley <brian.haley@hp.com>. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-04 12:01:37 +08:00
if (addr_type != IPV6_ADDR_ANY) {
int strict = __ipv6_addr_src_scope(addr_type) <= IPV6_ADDR_SCOPE_LINKLOCAL;
net: make ipv6 PKTINFO honour freebind This just makes it possible to spoof source IPv6 address on a socket without having to create and bind a new socket for every source IP we wish to spoof. Signed-off-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-07 22:57:22 +08:00
if (!(inet_sk(sk)->freebind || inet_sk(sk)->transparent) &&
net: relax PKTINFO non local ipv6 udp xmit check Allow transparent sockets to be less restrictive about the source ip of ipv6 udp packets being sent. Google-Bug-Id: 5018138 Signed-off-by: Maciej Żenczykowski <maze@google.com> CC: "Erik Kline" <ek@google.com> CC: "Lorenzo Colitti" <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-28 20:35:31 +08:00
!ipv6_chk_addr(net, &src_info->ipi6_addr,
[IPV6]: Check outgoing interface even if source address is unspecified. The outgoing interface index (ipi6_ifindex) in IPV6_PKTINFO ancillary data, is not checked if the source address (ipi6_addr) is unspecified. If the ipi6_ifindex is the not-exist interface, it should be fail. Based on patch from Shan Wei <shanwei@cn.fujitsu.com> and Brian Haley <brian.haley@hp.com>. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-04 12:01:37 +08:00
strict ? dev : NULL, 0))
err = -EINVAL;
else
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 = src_info->ipi6_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
}
[IPV6]: Check outgoing interface even if source address is unspecified. The outgoing interface index (ipi6_ifindex) in IPV6_PKTINFO ancillary data, is not checked if the source address (ipi6_addr) is unspecified. If the ipi6_ifindex is the not-exist interface, it should be fail. Based on patch from Shan Wei <shanwei@cn.fujitsu.com> and Brian Haley <brian.haley@hp.com>. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-04 12:01:37 +08:00
ipv6: no more dev_put() in datagram_send_ctl() Avoids touching device refcount in datagram_send_ctl(), thanks to RCU Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 19:21:06 +08:00
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
[IPV6]: Check outgoing interface even if source address is unspecified. The outgoing interface index (ipi6_ifindex) in IPV6_PKTINFO ancillary data, is not checked if the source address (ipi6_addr) is unspecified. If the ipi6_ifindex is the not-exist interface, it should be fail. Based on patch from Shan Wei <shanwei@cn.fujitsu.com> and Brian Haley <brian.haley@hp.com>. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-04 12:01:37 +08:00
if (err)
goto exit_f;
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
break;
[IPV6]: Check outgoing interface even if source address is unspecified. The outgoing interface index (ipi6_ifindex) in IPV6_PKTINFO ancillary data, is not checked if the source address (ipi6_addr) is unspecified. If the ipi6_ifindex is the not-exist interface, it should be fail. Based on patch from Shan Wei <shanwei@cn.fujitsu.com> and Brian Haley <brian.haley@hp.com>. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-04 12:01:37 +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
case IPV6_FLOWINFO:
[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 (cmsg->cmsg_len < CMSG_LEN(4)) {
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;
goto exit_f;
}
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_FLOWINFO_MASK) {
if ((fl6->flowlabel^*(__be32 *)CMSG_DATA(cmsg))&~IPV6_FLOWINFO_MASK) {
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;
goto exit_f;
}
}
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 = IPV6_FLOWINFO_MASK & *(__be32 *)CMSG_DATA(cmsg);
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
break;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
case IPV6_2292HOPOPTS:
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 IPV6_HOPOPTS:
[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 (opt->hopopt || cmsg->cmsg_len < CMSG_LEN(sizeof(struct ipv6_opt_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
err = -EINVAL;
goto exit_f;
}
hdr = (struct ipv6_opt_hdr *)CMSG_DATA(cmsg);
len = ((hdr->hdrlen + 1) << 3);
if (cmsg->cmsg_len < CMSG_LEN(len)) {
err = -EINVAL;
goto exit_f;
}
if (!capable(CAP_NET_RAW)) {
err = -EPERM;
goto exit_f;
}
opt->opt_nflen += len;
opt->hopopt = hdr;
break;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
case IPV6_2292DSTOPTS:
[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 (cmsg->cmsg_len < CMSG_LEN(sizeof(struct ipv6_opt_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
err = -EINVAL;
goto exit_f;
}
hdr = (struct ipv6_opt_hdr *)CMSG_DATA(cmsg);
len = ((hdr->hdrlen + 1) << 3);
if (cmsg->cmsg_len < CMSG_LEN(len)) {
err = -EINVAL;
goto exit_f;
}
if (!capable(CAP_NET_RAW)) {
err = -EPERM;
goto exit_f;
}
if (opt->dst1opt) {
err = -EINVAL;
goto exit_f;
}
opt->opt_flen += len;
opt->dst1opt = hdr;
break;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
case IPV6_DSTOPTS:
case IPV6_RTHDRDSTOPTS:
if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct ipv6_opt_hdr))) {
err = -EINVAL;
goto exit_f;
}
hdr = (struct ipv6_opt_hdr *)CMSG_DATA(cmsg);
len = ((hdr->hdrlen + 1) << 3);
if (cmsg->cmsg_len < CMSG_LEN(len)) {
err = -EINVAL;
goto exit_f;
}
if (!capable(CAP_NET_RAW)) {
err = -EPERM;
goto exit_f;
}
if (cmsg->cmsg_type == IPV6_DSTOPTS) {
opt->opt_flen += len;
opt->dst1opt = hdr;
} else {
opt->opt_nflen += len;
opt->dst0opt = hdr;
}
break;
case IPV6_2292RTHDR:
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 IPV6_RTHDR:
[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 (cmsg->cmsg_len < CMSG_LEN(sizeof(struct ipv6_rt_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
err = -EINVAL;
goto exit_f;
}
rthdr = (struct ipv6_rt_hdr *)CMSG_DATA(cmsg);
[IPV6] MIP6: Add socket option and ancillary data interface of routing header type 2. Add socket option and ancillary data interface of routing header type 2. Mobile IPv6 application will use this to send binding acknowledgement with the header without relation of confirmed route optimization (binding). 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 10:17:12 +08:00
switch (rthdr->type) {
[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
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
[IPV6] MIP6: Add socket option and ancillary data interface of routing header type 2. Add socket option and ancillary data interface of routing header type 2. Mobile IPv6 application will use this to send binding acknowledgement with the header without relation of confirmed route optimization (binding). 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 10:17:12 +08:00
case IPV6_SRCRT_TYPE_2:
ipv6: routing header fixes This patch fixes two bugs: 1. setsockopt() of anything but a Type 2 routing header should return EINVAL instead of EPERM. Noticed by Shan Wei (shanwei@cn.fujitsu.com). 2. setsockopt()/sendmsg() of a Type 2 routing header with invalid length or segments should return EINVAL. These values are statically fixed in RFC 3775, unlike the variable Type 0 was. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-13 14:59:21 +08:00
if (rthdr->hdrlen != 2 ||
rthdr->segments_left != 1) {
err = -EINVAL;
goto exit_f;
}
[IPV6] MIP6: Add socket option and ancillary data interface of routing header type 2. Add socket option and ancillary data interface of routing header type 2. Mobile IPv6 application will use this to send binding acknowledgement with the header without relation of confirmed route optimization (binding). 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 10:17:12 +08:00
break;
[IPV6]: Do not send RH0 anymore. Based on <draft-ietf-ipv6-deprecate-rh0-00.txt>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-11 13:55:49 +08:00
#endif
[IPV6] MIP6: Add socket option and ancillary data interface of routing header type 2. Add socket option and ancillary data interface of routing header type 2. Mobile IPv6 application will use this to send binding acknowledgement with the header without relation of confirmed route optimization (binding). 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 10:17:12 +08:00
default:
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;
goto exit_f;
}
len = ((rthdr->hdrlen + 1) << 3);
[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 (cmsg->cmsg_len < CMSG_LEN(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
err = -EINVAL;
goto exit_f;
}
/* segments left must also match */
if ((rthdr->hdrlen >> 1) != rthdr->segments_left) {
err = -EINVAL;
goto exit_f;
}
opt->opt_nflen += len;
opt->srcrt = rthdr;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
if (cmsg->cmsg_type == IPV6_2292RTHDR && opt->dst1opt) {
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 dsthdrlen = ((opt->dst1opt->hdrlen+1)<<3);
opt->opt_nflen += dsthdrlen;
opt->dst0opt = opt->dst1opt;
opt->dst1opt = NULL;
opt->opt_flen -= dsthdrlen;
}
break;
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542). Support several new socket options / ancillary data: IPV6_RECVPKTINFO, IPV6_PKTINFO, IPV6_RECVHOPOPTS, IPV6_HOPOPTS, IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS, IPV6_RECVRTHDR, IPV6_RTHDR, IPV6_RECVHOPOPTS, IPV6_HOPOPTS Old semantics are preserved as IPV6_2292xxxx so that we can maintain backward compatibility. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-08 08:59:17 +08:00
case IPV6_2292HOPLIMIT:
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 IPV6_HOPLIMIT:
if (cmsg->cmsg_len != CMSG_LEN(sizeof(int))) {
err = -EINVAL;
goto exit_f;
}
*hlimit = *(int *)CMSG_DATA(cmsg);
ipv6: Check the hop limit setting in ancillary data. When specifing the outgoing hop limit as ancillary data for sendmsg(), the kernel doesn't check the integer hop limit value as specified in [RFC-3542] section 6.3. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-10 15:50:55 +08:00
if (*hlimit < -1 || *hlimit > 0xff) {
err = -EINVAL;
goto exit_f;
}
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
break;
[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
case IPV6_TCLASS:
{
int tc;
err = -EINVAL;
if (cmsg->cmsg_len != CMSG_LEN(sizeof(int))) {
goto exit_f;
}
tc = *(int *)CMSG_DATA(cmsg);
[IPV6]: Accept -1 for IPV6_TCLASS This patch should add support for -1 as "default" IPv6 traffic class, as specified in IETF RFC3542 §6.5. Within the kernel, it seems tclass < 0 is already handled, but setsockopt, getsockopt and recvmsg calls won't accept it from userland. Signed-off-by: Remi Denis-Courmont <rdenis@simphalempin.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-14 11:08:07 +08:00
if (tc < -1 || tc > 0xff)
[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
goto exit_f;
err = 0;
*tclass = tc;
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
break;
}
case IPV6_DONTFRAG:
{
int df;
err = -EINVAL;
if (cmsg->cmsg_len != CMSG_LEN(sizeof(int))) {
goto exit_f;
}
df = *(int *)CMSG_DATA(cmsg);
if (df < 0 || df > 1)
goto exit_f;
err = 0;
*dontfrag = df;
[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
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:
[NET]: Make NETDEBUG pure printk wrappers Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-10 11:50:53 +08:00
LIMIT_NETDEBUG(KERN_DEBUG "invalid cmsg type: %d\n",
[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
cmsg->cmsg_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
err = -EINVAL;
IPv6: datagram_send_ctl() should exit immediately when an error occured When an error occured, datagram_send_ctl() should exit immediately rather than continue to run the for loop. Otherwise, the variable err might be changed and the error might be hidden. Fix this bug by using "goto" instead of "break". Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-30 14:57:58 +08:00
goto exit_f;
[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
}
exit_f:
return err;
}