github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-09 23:23:53 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
6e8d94de15
linux/net/ipv4
History
Hannes Frederic Sowa 1280938465 inet: limit length of fragment queue hash table bucket lists 
[ Upstream commit 5a3da1fe95 ]

This patch introduces a constant limit of the fragment queue hash
table bucket list lengths. Currently the limit 128 is choosen somewhat
arbitrary and just ensures that we can fill up the fragment cache with
empty packets up to the default ip_frag_high_thresh limits. It should
just protect from list iteration eating considerable amounts of cpu.

If we reach the maximum length in one hash bucket a warning is printed.
This is implemented on the caller side of inet_frag_find to distinguish
between the different users of inet_fragment.c.

I dropped the out of memory warning in the ipv4 fragment lookup path,
because we already get a warning by the slab allocator.

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Jesper Dangaard Brouer <jbrouer@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-28 12:11:54 -07:00
..
netfilter netfilter: nf_nat: don't check for port change on ICMP tuples 2012-11-26 11:37:48 -08:00
af_inet.c ipv6: use a stronger hash for tcp 2013-02-28 06:59:06 -08:00
ah4.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
arp.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
cipso_ipv4.c cipso: don't follow a NULL pointer when setsockopt() is called 2012-08-09 08:31:42 -07:00
datagram.c ipv4: Lock socket and use cork flow in ip4_datagram_connect(). 2011-05-08 13:48:57 -07:00
devinet.c Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
esp4.c xfrm: take net hdr len into account for esp payload size calculation 2012-06-10 00:36:15 +09:00
fib_frontend.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
fib_lookup.h ipv4: Fix nexthop caching wrt. scoping. 2011-03-24 18:06:47 -07:00
fib_rules.c net: ipv4: export fib_lookup and fib_table_lookup 2011-12-04 22:43:33 +01:00
fib_semantics.c ipv4: fix the rcu race between free_fib_info and ip_route_output_slow 2012-06-10 00:36:14 +09:00
fib_trie.c ipv4: Do not use dead fib_info entries. 2012-05-10 22:16:32 -04:00
gre.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
icmp.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
igmp.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
inet_connection_sock.c inet: Fix kmemleak in tcp_v4/6_syn_recv_sock and dccp_v4/6_request_recv_sock 2013-01-11 09:07:14 -08:00
inet_diag.c inet_diag: validate port comparison byte code to prevent unsafe reads 2013-01-11 09:06:29 -08:00
inet_fragment.c inet: limit length of fragment queue hash table bucket lists 2013-03-28 12:11:54 -07:00
inet_hashtables.c net: Compute protocol sequence numbers and fragment IDs using MD5. 2011-08-06 18:33:19 -07:00
inet_lro.c net: add skb frag size accessors 2011-10-19 03:10:46 -04:00
inet_timewait_sock.c net: Fix files explicitly needing to include module.h 2011-10-31 19:30:28 -04:00
inetpeer.c inetpeer: fix a race in inetpeer_gc_worker() 2012-07-16 09:03:45 -07:00
ip_forward.c ipv4: Save nexthop address of LSRR/SSRR option to IPCB. 2011-11-23 19:19:32 -05:00
ip_fragment.c inet: limit length of fragment queue hash table bucket lists 2013-03-28 12:11:54 -07:00
ip_gre.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
ip_input.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ip_options.c net/ipv4: Ensure that location of timestamp option is stored 2013-03-28 12:11:52 -07:00
ip_output.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ip_sockglue.c net: prevent setting ttl=0 via IP_TTL 2013-02-14 10:48:54 -08:00
ipcomp.c net: Convert printks to pr_<level> 2012-03-11 23:42:51 -07:00
ipconfig.c net: Convert printks to pr_<level> 2012-03-11 23:42:51 -07:00
ipip.c net: Convert printks to pr_<level> 2012-03-11 23:42:51 -07:00
ipmr.c net: ipv4: ipmr_expire_timer causes crash when removing net namespace 2012-10-02 10:29:50 -07:00
Kconfig net: Fix build regression when INET_UDP_DIAG=y and IPV6=m 2012-02-07 13:35:28 -05:00
Makefile tcp memory pressure controls 2011-12-12 19:04:10 -05:00
netfilter.c netfilter: possible unaligned packet header in ip_route_me_harder 2011-11-21 18:46:18 +01:00
ping.c ipv4: fix a bug in ping_err(). 2013-02-28 06:59:06 -08:00
proc.c tcp: implement RFC 5961 4.2 2013-01-11 09:07:15 -08:00
protocol.c net: add __rcu annotations to protocol 2010-10-27 11:37:31 -07:00
raw.c ipv4: raw: fix icmp_filter() 2012-10-13 05:38:44 +09:00
route.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-04-02 17:53:39 -07:00
syncookies.c tcp: fix syncookie regression 2012-03-11 15:52:12 -07:00
sysctl_net_ipv4.c tcp: implement RFC 5961 3.2 2013-01-11 09:07:14 -08:00
tcp_bic.c tcp: fix undo after RTO for BIC 2012-01-20 14:17:26 -05:00
tcp_cong.c tcp: Apply device TSO segment limit earlier 2012-10-02 10:29:34 -07:00
tcp_cubic.c tcp: fix undo after RTO for CUBIC 2012-01-20 14:17:26 -05:00
tcp_diag.c inet_diag: Rename inet_diag_req into inet_diag_req_v2 2012-01-11 12:56:06 -08:00
tcp_highspeed.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_htcp.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_hybla.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_illinois.c net: fix divide by zero in tcp algorithm illinois 2012-11-17 13:16:17 -08:00
tcp_input.c tcp: fix double-counted receiver RTT when leaving receiver fast path 2013-03-20 13:05:01 -07:00
tcp_ipv4.c inet: Fix kmemleak in tcp_v4/6_syn_recv_sock and dccp_v4/6_request_recv_sock 2013-01-11 09:07:14 -08:00
tcp_lp.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tcp_memcontrol.c Merge branch 'for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2012-03-20 18:11:21 -07:00
tcp_minisocks.c tcp: md5: rcu conversion 2012-01-31 12:14:00 -05:00
tcp_output.c tcp: fix skb_availroom() 2013-03-28 12:11:53 -07:00
tcp_probe.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
tcp_scalable.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_timer.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
tcp_vegas.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_vegas.h [TCP]: congestion control API pass RTT in microseconds 2007-07-31 02:27:57 -07:00
tcp_veno.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_westwood.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_yeah.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tcp.c tcp: fix skb_availroom() 2013-03-28 12:11:53 -07:00
tunnel4.c net: Convert printks to pr_<level> 2012-03-11 23:42:51 -07:00
udp_diag.c udp_diag: implement idiag_get_info for udp/udplite to get queue information 2012-04-25 20:43:01 -04:00
udp_impl.h net: Make setsockopt() optlen be unsigned. 2009-09-30 16:12:20 -07:00
udp.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
udplite.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
xfrm4_input.c net/ipv4: EXPORT_SYMBOL cleanups 2010-07-12 12:57:54 -07:00
xfrm4_mode_beet.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm4_mode_transport.c [IPSEC]: Use IPv6 calling convention as the convention for x->mode->output 2007-10-10 16:55:54 -07:00
xfrm4_mode_tunnel.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm4_output.c xfrm4: Don't call icmp_send on local error 2011-07-01 17:33:19 -07:00
xfrm4_policy.c ipv4: fix ipsec forward performance regression 2011-10-24 03:01:22 -04:00
xfrm4_state.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
xfrm4_tunnel.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00