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3305b80c21
linux/net/ipv4
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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
..
ipvs [NET]: Add const markers to various variables. 2005-11-29 16:21:38 -08:00
netfilter [NETFILTER] ip_tables: NUMA-aware allocation 2006-01-03 13:10:29 -08:00
af_inet.c [IPV4] Fix EPROTONOSUPPORT error in inet_create 2005-12-02 20:43:26 -08:00
ah4.c [CRYPTO]: crypto_free_tfm() callers no longer need to check for NULL 2005-09-01 17:44:29 -07:00
arp.c [IPV4]: Replace __in_dev_get with __in_dev_get_rcu/rtnl 2005-10-03 14:35:55 -07:00
datagram.c [NET]: Fix sparse warnings 2005-08-29 16:01:32 -07:00
devinet.c [IPV4]: Fix secondary IP addresses after promotion 2005-11-22 14:47:37 -08:00
esp4.c [IPSEC] Fix block size/MTU bugs in ESP 2005-10-10 21:11:34 -07:00
fib_frontend.c [NETLINK]: Fix processing of fib_lookup netlink messages 2005-12-01 14:30:00 -08:00
fib_hash.c [NET]: Add const markers to various variables. 2005-11-29 16:21:38 -08:00
fib_lookup.h [IPV4]: Prepare FIB core for RCU. 2005-08-29 16:08:31 -07:00
fib_rules.c [NETLINK]: Correctly set NLM_F_MULTI without checking the pid 2005-06-18 22:54:12 -07:00
fib_semantics.c [NET]: Add const markers to various variables. 2005-11-29 16:21:38 -08:00
fib_trie.c [FIB_TRIE]: Don't show local table in /proc/net/route output 2005-11-20 21:09:00 -08:00
icmp.c [NET]: Add const markers to various variables. 2005-11-29 16:21:38 -08:00
igmp.c [IGMP]: workaround for IGMP v1/v2 bug 2005-12-02 20:32:59 -08:00
inet_connection_sock.c [ICSK]: Move v4_addr2sockaddr from TCP to icsk 2006-01-03 13:10:39 -08:00
inet_diag.c [IPV6]: Introduce inet6_rsk() 2006-01-03 13:10:37 -08:00
inet_hashtables.c [NET]: Introduce inet_connection_sock 2005-08-29 15:43:19 -07:00
inet_timewait_sock.c [TWSK]: Grab the module refcount for timewait sockets 2005-10-10 21:25:23 -07:00
inetpeer.c [IPV4]: Safer reassembly 2006-01-03 13:10:31 -08:00
ip_forward.c [IPV4]: Remove some dead code from ip_forward() 2005-08-29 16:03:06 -07:00
ip_fragment.c [IPV4]: Safer reassembly 2006-01-03 13:10:31 -08:00
ip_gre.c [GRE]: Fix hardware checksum modification 2005-12-14 12:55:24 -08:00
ip_input.c [NET]: use __read_mostly on kmem_cache_t , DEFINE_SNMP_STAT pointers 2005-08-29 16:11:18 -07:00
ip_options.c [NET]: kfree cleanup 2005-11-08 09:41:34 -08:00
ip_output.c [IPV4]: Safer reassembly 2006-01-03 13:10:31 -08:00
ip_sockglue.c [NET]: kfree cleanup 2005-11-08 09:41:34 -08:00
ipcomp.c [CRYPTO]: crypto_free_tfm() callers no longer need to check for NULL 2005-09-01 17:44:29 -07:00
ipconfig.c [NET]: fix-up schedule_timeout() usage 2005-09-12 14:15:34 -07:00
ipip.c [NET]: fix oops after tunnel module unload 2005-07-30 17:46:44 -07:00
ipmr.c [IPV4]: Replace __in_dev_get with __in_dev_get_rcu/rtnl 2005-10-03 14:35:55 -07:00
Kconfig [TCP] BIC: CUBIC window growth (2.0) 2006-01-03 13:10:28 -08:00
Makefile [TCP] BIC: CUBIC window growth (2.0) 2006-01-03 13:10:28 -08:00
multipath_drr.c [IPV4]: possible cleanups 2005-08-29 15:33:20 -07:00
multipath_random.c [IPV4]: Multipath modules need a license to prevent kernel tainting. 2005-06-13 14:29:06 -07:00
multipath_rr.c [IPV4]: Multipath modules need a license to prevent kernel tainting. 2005-06-13 14:29:06 -07:00
multipath_wrandom.c [NET]: kfree cleanup 2005-11-08 09:41:34 -08:00
multipath.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
netfilter.c [NETFILTER]: Move reroute-after-queue code up to the nf_queue layer. 2005-08-29 15:36:19 -07:00
proc.c [NET]: Add const markers to various variables. 2005-11-29 16:21:38 -08:00
protocol.c [TCP]: Move the tcp sock states to net/tcp_states.h 2005-08-29 15:41:54 -07:00
raw.c [PATCH] raw_sendmsg DoS on 2.6 2005-09-19 18:45:42 -07:00
route.c [NET]: Add const markers to various variables. 2005-11-29 16:21:38 -08:00
syncookies.c [ICSK]: Rename struct tcp_func to struct inet_connection_sock_af_ops 2006-01-03 13:10:38 -08:00
sysctl_net_ipv4.c [IPV4]: Safer reassembly 2006-01-03 13:10:31 -08:00
tcp_bic.c [TCP] BIC: spelling and whitespace 2006-01-03 13:10:27 -08:00
tcp_cong.c [TCP]: Appropriate Byte Count support 2005-11-10 17:09:53 -08:00
tcp_cubic.c [TCP] BIC: CUBIC window growth (2.0) 2006-01-03 13:10:28 -08:00
tcp_diag.c [INET_DIAG]: Move the tcp_diag interface to the proper place 2005-08-29 15:57:54 -07:00
tcp_highspeed.c [TCP]: TCP highspeed build error 2005-11-17 14:11:18 -08:00
tcp_htcp.c [TCP]: add tcp_slow_start helper 2005-11-10 17:07:24 -08:00
tcp_hybla.c [TCP]: fix congestion window update when using TSO deferal 2005-11-10 16:53:30 -08:00
tcp_input.c [ICSK]: Rename struct tcp_func to struct inet_connection_sock_af_ops 2006-01-03 13:10:38 -08:00
tcp_ipv4.c [ICSK]: Move v4_addr2sockaddr from TCP to icsk 2006-01-03 13:10:39 -08:00
tcp_minisocks.c [ICSK]: Rename struct tcp_func to struct inet_connection_sock_af_ops 2006-01-03 13:10:38 -08:00
tcp_output.c [ICSK]: Rename struct tcp_func to struct inet_connection_sock_af_ops 2006-01-03 13:10:38 -08:00
tcp_scalable.c [TCP]: add tcp_slow_start helper 2005-11-10 17:07:24 -08:00
tcp_timer.c [TCP]: spelling fixes 2005-11-10 17:13:47 -08:00
tcp_vegas.c [TCP] Vegas: Remove extra call to tcp_vegas_rtt_calc 2005-12-06 16:17:11 -08:00
tcp_westwood.c [INET_DIAG]: Rename tcp_diag.[ch] to inet_diag.[ch] 2005-08-29 15:57:48 -07:00
tcp.c [ICSK]: Rename struct tcp_func to struct inet_connection_sock_af_ops 2006-01-03 13:10:38 -08:00
udp.c [IP]: Simplify and consolidate MSG_PEEK error handling 2006-01-03 13:10:41 -08:00
xfrm4_input.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xfrm4_output.c [IPSEC]: Add XFRM_STATE_NOPMTUDISC flag 2005-06-20 13:21:43 -07:00
xfrm4_policy.c [XFRM]: Handle DCCP in xfrm{4,6}_decode_session 2005-12-19 14:03:46 -08:00
xfrm4_state.c [IPV4]: possible cleanups 2005-08-29 15:33:20 -07:00
xfrm4_tunnel.c [NET]: Make ipip/ip6_tunnel independant of XFRM 2005-07-19 14:03:34 -07:00