Commit Graph

233 Commits

Author SHA1 Message Date
Randy Dunlap 4fc268d24c [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>
2006-01-11 18:42:14 -08:00
Kris Katterjohn 8b3a70058b [NET]: Remove more unneeded typecasts on *malloc()
This removes more unneeded casts on the return value for kmalloc(),
sock_kmalloc(), and vmalloc().

Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-11 16:32:14 -08:00
David Woodhouse ae0f7d5f83 [IPV6]: Avoid calling ip6_xmit() with NULL sk
The ip6_xmit() function now assumes that its sk argument is non-NULL,
which isn't currently true when TCPv6 code is sending RST or ACK
packets. This fixes that code to use a socket of its own for sending
such packets, as TCPv4 does. (Thanks Andi for the pointer).

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-11 16:32:13 -08:00
David S. Miller 82bf7e97ac [NET]: Some more missing include/etherdevice.h includes
For compare_ether_addr()

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-11 16:32:11 -08:00
David S. Miller 5bf887f2ff [IPV6]: Fix modular build with netfilter enabled.
Also, drop __exit marker from ipv6_netfilter_fini() as this
can be invoked from inet6_init() error handling paths.

Based upon a report from Stephen Hemminger.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-10 21:02:21 -08:00
Patrick McHardy babbdb1a18 [NETFILTER]: Fix timeout sysctls on big-endian 64bit architectures
The connection tracking timeout variables are unsigned long, but
proc_dointvec_jiffies is used with sizeof(unsigned int) in the sysctl
tables. Since there is no proc_doulongvec_jiffies function, change the
timeout variables to unsigned int.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-10 12:54:35 -08:00
Patrick McHardy bb94aa169e [NETFILTER]: net/ipv[46]/netfilter.c cleanups
Don't wrap entire file in #ifdef CONFIG_NETFILTER, remove a few
unneccessary includes.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-10 12:54:29 -08:00
Kris Katterjohn d3f4a687f6 [NET]: Change memcmp(,,ETH_ALEN) to compare_ether_addr()
This changes some memcmp(one,two,ETH_ALEN) to compare_ether_addr(one,two).

Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-10 12:54:28 -08:00
Patrick McHardy a2c2064f7f [IPV6]: Set skb->priority in ip6_output.c
Set skb->priority = sk->sk_priority as in raw.c and IPv4.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-09 14:16:31 -08:00
Patrick McHardy 2941a48631 [NET]: Convert net/{ipv4,ipv6,sched} to netdev_priv
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-09 14:16:03 -08:00
Pekka Enberg f9f7500521 [PATCH] slab: remove unused align parameter from alloc_percpu
__alloc_percpu and alloc_percpu both take an 'align' argument which is
completely ignored.  snmp6_mib_init() in net/ipv6/af_inet6.c attempts to use
it, but it will be ignored.  Therefore, remove the 'align' argument and fixup
the lone caller.

Signed-off-by: Matthew Dobson <colpatch@us.ibm.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:12:39 -08:00
Adrian Bunk 9f5336e218 [IPV6]: small cleanups
This patch contains the following cleanups:
- addrconf.c: make addrconf_dad_stop() static
- inet6_connection_sock.c should #include <net/inet6_connection_sock.h>
  for getting the prototypes of it's global functions

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-07 13:24:25 -08:00
Patrick McHardy e16a8f0b8c [NETFILTER]: Add ipt_policy/ip6t_policy matches
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-07 12:57:38 -08:00
Patrick McHardy 3e3850e989 [NETFILTER]: Fix xfrm lookup in ip_route_me_harder/ip6_route_me_harder
ip_route_me_harder doesn't use the port numbers of the xfrm lookup and
uses ip_route_input for non-local addresses which doesn't do a xfrm
lookup, ip6_route_me_harder doesn't do a xfrm lookup at all.

Use xfrm_decode_session and do the lookup manually, make sure both
only do the lookup if the packet hasn't been transformed already.

Makeing sure the lookup only happens once needs a new field in the
IP6CB, which exceeds the size of skb->cb. The size of skb->cb is
increased to 48b. Apparently the IPv6 mobile extensions need some
more room anyway.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-07 12:57:33 -08:00
Patrick McHardy 8cdfab8a43 [IPV4]: reset IPCB flags when neccessary
Reset IPSKB_XFRM_TUNNEL_SIZE flags in ipip and ip_gre hard_start_xmit
function before the packet reenters IP. This is neccessary so the
encapsulated packets are checked not to be oversized in xfrm4_output.c
again. Reset all flags in sit when a packet changes its address family.

Also remove some obsolete IPSKB flags.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-07 12:57:32 -08:00
Patrick McHardy b05e106698 [IPV4/6]: Netfilter IPsec input hooks
When the innermost transform uses transport mode the decapsulated packet
is not visible to netfilter. Pass the packet through the PRE_ROUTING and
LOCAL_IN hooks again before handing it to upper layer protocols to make
netfilter-visibility symetrical to the output path.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-07 12:57:31 -08:00
Patrick McHardy 951dbc8ac7 [IPV6]: Move nextheader offset to the IP6CB
Move nextheader offset to the IP6CB to make it possible to pass a
packet to ip6_input_finish multiple times and have it skip already
parsed headers. As a nice side effect this gets rid of the manual
hopopts skipping in ip6_input_finish.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-07 12:57:29 -08:00
Patrick McHardy 16a6677fdf [XFRM]: Netfilter IPsec output hooks
Call netfilter hooks before IPsec transforms. Packets visit the
FORWARD/LOCAL_OUT and POST_ROUTING hook before the first encapsulation
and the LOCAL_OUT and POST_ROUTING hook before each following tunnel mode
transform.

Patch from Herbert Xu <herbert@gondor.apana.org.au>:

Move the loop from dst_output into xfrm4_output/xfrm6_output since they're
the only ones who need to it. xfrm{4,6}_output_one() processes the first SA
all subsequent transport mode SAs and is called in a loop that calls the
netfilter hooks between each two calls.

In order to avoid the tail call issue, I've added the inline function
nf_hook which is nf_hook_slow plus the empty list check.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-07 12:57:28 -08:00
Kris Katterjohn 46f25dffba [NET]: Change 1500 to ETH_DATA_LEN in some files
These patches add the header linux/if_ether.h and change 1500 to
ETH_DATA_LEN in some files.

Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-05 16:48:56 -08:00
Patrick McHardy 22dea562bb [NETFILTER]: Export ip6_masked_addrcmp, don't pass IPv6 addresses on stack
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-05 12:21:34 -08:00
Patrick McHardy b777e0ce74 [NETFILTER]: make ipv6_find_hdr() find transport protocol header
The original ipv6_find_hdr() finds the specified header in IPv6 packets.
This makes it possible to get transport header so that we can kill similar
loop in ip6_match_packet().

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-05 12:21:16 -08:00
Pablo Neira Ayuso c1d10adb4a [NETFILTER]: Add ctnetlink port for nf_conntrack
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-05 12:19:05 -08:00
YOSHIFUJI Hideaki 181a46a56e [NETFILTER]: Use macro for spinlock_t/rwlock_t initializations/definition.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-04 13:56:54 -08:00
YOSHIFUJI Hideaki 196433c5b7 [IPV6]: Use macro for rwlock_t initialization.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-04 13:56:31 -08:00
Christoph Hellwig b5e5fa5e09 [NET]: Add a dev_ioctl() fallback to sock_ioctl()
Currently all network protocols need to call dev_ioctl as the default
fallback in their ioctl implementations.  This patch adds a fallback
to dev_ioctl to sock_ioctl if the protocol returned -ENOIOCTLCMD.
This way all the procotol ioctl handlers can be simplified and we don't
need to export dev_ioctl.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 14:18:33 -08:00
Arnaldo Carvalho de Melo 14c850212e [INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h
To help in reducing the number of include dependencies, several files were
touched as they were getting needed headers indirectly for stuff they use.

Thanks also to Alan Menegotto for pointing out that net/dccp/proto.c had
linux/dccp.h include twice.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:11:21 -08:00
Eric Dumazet 90ddc4f047 [NET]: move struct proto_ops to const
I noticed that some of 'struct proto_ops' used in the kernel may share
a cache line used by locks or other heavily modified data. (default
linker alignement is 32 bytes, and L1_CACHE_LINE is 64 or 128 at
least)

This patch makes sure a 'struct proto_ops' can be declared as const,
so that all cpus can share all parts of it without false sharing.

This is not mandatory : a driver can still use a read/write structure
if it needs to (and eventually a __read_mostly)

I made a global stubstitute to change all existing occurences to make
them const.

This should reduce the possibility of false sharing on SMP, and
speedup some socket system calls.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:11:15 -08:00
Arnaldo Carvalho de Melo d83d8461f9 [IP_SOCKGLUE]: Remove most of the tcp specific calls
As DCCP needs to be called in the same spots.

Now we have a member in inet_sock (is_icsk), set at sock creation time from
struct inet_protosw->flags (if INET_PROTOSW_ICSK is set, like for TCP and
DCCP) to see if a struct sock instance is a inet_connection_sock for places
like the ones in ip_sockglue.c (v4 and v6) where we previously were looking if
sk_type was SOCK_STREAM, that is insufficient because we now use the same code
for DCCP, that has sk_type SOCK_DCCP.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:58 -08:00
Arnaldo Carvalho de Melo d8313f5ca2 [INET6]: Generalise tcp_v6_hash_connect
Renaming it to inet6_hash_connect, making it possible to ditch
dccp_v6_hash_connect and share the same code with TCP instead.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:56 -08:00
Arnaldo Carvalho de Melo 6d6ee43e0b [TWSK]: Introduce struct timewait_sock_ops
So that we can share several timewait sockets related functions and
make the timewait mini sockets infrastructure closer to the request
mini sockets one.

Next changesets will take advantage of this, moving more code out of
TCP and DCCP v4 and v6 to common infrastructure.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:54 -08:00
Arnaldo Carvalho de Melo 399c07def6 [IPV6]: Export ipv6_opt_accepted
It was already non-TCP specific, will be used by DCCPv6.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:51 -08:00
Arnaldo Carvalho de Melo 3cf3dc6c2e [IPV6]: Export some symbols for DCCPv6
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:48 -08:00
Arnaldo Carvalho de Melo 0fa1a53e1f [IPV6]: Introduce inet6_timewait_sock
Out of tcp6_timewait_sock, that now is just an aggregation of
inet_timewait_sock and inet6_timewait_sock, using tw_ipv6_offset in struct
inet_timewait_sock, that is common to the IPv6 transport protocols that use
timewait sockets, like DCCP and TCP.

tw_ipv6_offset plays the struct inet_sock pinfo6 role, i.e. for the generic
code to find the IPv6 area in a timewait sock.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:47 -08:00
Arnaldo Carvalho de Melo b9750ce13c [IPV6]: Generalise some functions
Using sk->sk_protocol instead of IPPROTO_TCP.

Will be used by DCCPv6 in the next changesets.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:46 -08:00
Herbert Xu 3305b80c21 [IP]: Simplify and consolidate MSG_PEEK error handling
When a packet is obtained from skb_recv_datagram with MSG_PEEK enabled
it is left on the socket receive queue.  This means that when we detect
a checksum error we have to be careful when trying to free the packet
as someone could have dequeued it in the time being.

Currently this delicate logic is duplicated three times between UDPv4,
UDPv6 and RAWv6.  This patch moves them into a one place and simplifies
the code somewhat.

This is based on a suggestion by Eric Dumazet.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:41 -08:00
Arnaldo Carvalho de Melo 8292a17a39 [ICSK]: Rename struct tcp_func to struct inet_connection_sock_af_ops
And move it to struct inet_connection_sock. DCCP will use it in the
upcoming changesets.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:38 -08:00
Arnaldo Carvalho de Melo ca304b6104 [IPV6]: Introduce inet6_rsk()
And inet6_rsk_offset in inet_request_sock, for the same reasons as
inet_sock's pinfo6 member.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:37 -08:00
Arnaldo Carvalho de Melo 8129765ac0 [IPV6]: Generalise tcp_v6_search_req & tcp_v6_synq_add
More work is needed tho to introduce inet6_request_sock from
tcp6_request_sock, in the same layout considerations as ipv6_pinfo in
inet_sock, next changeset will do that.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:36 -08:00
Arnaldo Carvalho de Melo 90b19d3169 [IPV6]: Generalise __tcp_v6_hash, renaming it to __inet6_hash
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:33 -08:00
Arnaldo Carvalho de Melo 971af18bbf [IPV6]: Reuse inet_csk_get_port in tcp_v6_get_port
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:33 -08:00
Eric Dumazet 3183606469 [NETFILTER] ip_tables: NUMA-aware allocation
Part of a performance problem with ip_tables is that memory allocation
is not NUMA aware, but 'only' SMP aware (ie each CPU normally touch
separate cache lines)

Even with small iptables rules, the cost of this misplacement can be
high on common workloads.  Instead of using one vmalloc() area
(located in the node of the iptables process), we now allocate an area
for each possible CPU, using vmalloc_node() so that memory should be
allocated in the CPU's node if possible.

Port to arp_tables and ip6_tables by Harald Welte.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:10:29 -08:00
David L Stevens 5ab4a6c81e [IPV6] mcast: Fix multiple issues in MLDv2 reports.
The below "jumbo" patch fixes the following problems in MLDv2.

1) Add necessary "ntohs" to recent "pskb_may_pull" check [breaks
        all nonzero source queries on little-endian (!)]

2) Add locking to source filter list [resend of prior patch]

3) fix "mld_marksources()" to
        a) send nothing when all queried sources are excluded
        b) send full exclude report when source queried sources are
                not excluded
        c) don't schedule a timer when there's nothing to report

NOTE: RFC 3810 specifies the source list should be saved and each
  source reported individually as an IS_IN. This is an obvious DOS
  path, requiring the host to store and then multicast as many sources
  as are queried (e.g., millions...). This alternative sends a full, 
  relevant report that's limited to number of sources present on the
  machine.

4) fix "add_grec()" to send empty-source records when it should
        The original check doesn't account for a non-empty source
        list with all sources inactive; the new code keeps that
        short-circuit case, and also generates the group header
        with an empty list if needed.

5) fix mca_crcount decrement to be after add_grec(), which needs
        its original value

These issues (other than item #1 ;-) ) were all found by Yan Zheng,
much thanks!

Signed-off-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-27 14:03:00 -08:00
YOSHIFUJI Hideaki 6732badee0 [IPV6]: Fix addrconf dead lock.
We need to release idev->lcok before we call addrconf_dad_stop().
It calls ipv6_addr_del(), which will hold idev->lock.

Bug spotted by Yasuyuki KOZAKAI <yasuyuki.kozakai@toshiba.co.jp>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-27 13:35:15 -08:00
David L Stevens 6f4353d891 [IPV6]: Increase default MLD_MAX_MSF to 64.
The existing default of 10 is just way too low.

Signed-off-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-26 17:03:46 -08:00
Hiroyuki YAMAMORI 291d809ba5 [IPV6]: Fix Temporary Address Generation
From: Hiroyuki YAMAMORI <h-yamamo@db3.so-net.ne.jp>

Since regen_count is stored in the public address, we need to reset it
when we start renewing temporary address.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-23 11:24:05 -08:00
YOSHIFUJI Hideaki 3dd3bf8357 [IPV6]: Fix dead lock.
We need to relesae ifp->lock before we call addrconf_dad_stop(),
which will hold ifp->lock.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-23 11:23:21 -08:00
David S. Miller e6469297d4 Merge git://git.skbuff.net/gitroot/yoshfuji/linux-2.6.14+git+ipv6-fix-20051221a 2005-12-22 07:41:27 -08:00
Kristian Slavov 1d1428045c [IPV6]: Fix address deletion
If you add more than one IPv6 address belonging to the same prefix and 
delete the address that was last added, routing table entry for that 
prefix is also deleted.
Tested on 2.6.14.4

To reproduce:
ip addr add 3ffe::1/64 dev eth0
ip addr add 3ffe::2/64 dev eth0
/* wait DAD */
sleep 1
ip addr del 3ffe::2/64 dev eth0
ip -6 route

(route to 3ffe::/64 should be gone)

In ipv6_del_addr(), if ifa == ifp, we set ifa->if_next to NULL, and later 
assign ifap = &ifa->if_next, effectively terminating the for-loop.
This prevents us from checking if there are other addresses using the same 
prefix that are valid, and thus resulting in deletion of the prefix.
This applies only if the first entry in idev->addr_list is the address to 
be deleted.

Signed-off-by: Kristian Slavov <kristian.slavov@nomadiclab.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-21 18:47:24 -08:00
YOSHIFUJI Hideaki 6b3ae80a63 [IPV6]: Don't select a tentative address as a source address.
A tentative address is not considered "assigned to an interface"
in the traditional sense (RFC2462 Section 4).
Don't try to select such an address for the source address.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:58:01 +09:00
YOSHIFUJI Hideaki c5e33bddd3 [IPV6]: Run DAD when the link becomes ready.
If the link was not available when the interface was created,
run DAD for pending tentative addresses when the link becomes ready.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:44 +09:00