Hannes Frederic Sowa 5a3da1fe95 inet: limit length of fragment queue hash table bucket lists ... 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>		2013-03-19 10:28:36 -04:00
..
9p	9p: turn fid->dlist into hlist	2013-02-27 22:51:08 -05:00
bluetooth	Bluetooth: Keep track of UUID type upon addition	2013-02-01 15:50:17 -02:00
caif	…
irda	treewide: Replace incomming with incoming in all comments and strings	2013-01-03 16:15:49 +01:00
iucv	…
netfilter	netfilter: nf_ct_helper: better logging for dropped packets	2013-02-19 02:48:05 +01:00
netns	xfrm: make gc_thresh configurable in all namespaces	2013-02-06 11:36:29 +01:00
nfc	NFC: Initial Secure Element API	2013-01-10 00:51:54 +01:00
phonet	…
sctp	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
tc_act	…
act_api.h	act_police: move struct tcf_police to act_police.c	2013-02-12 18:59:45 -05:00
addrconf.h	ipv4: introduce address lifetime	2013-01-29 13:59:57 -05:00
af_ieee802154.h	…
af_rxrpc.h	…
af_unix.h	unix: Remove unused field from unix_sock	2012-10-21 20:37:06 -04:00
ah.h	…
arp.h	net: Dont use ifindices in hash fns	2012-08-09 16:18:06 -07:00
atmclip.h	…
ax25.h	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
ax88796.h	…
cfg80211-wext.h	…
cfg80211.h	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem	2013-02-18 13:47:13 -05:00
checksum.h	net: core: add function for incremental IPv6 pseudo header checksum updates	2012-08-30 03:00:16 +02:00
cipso_ipv4.h	…
cls_cgroup.h	net: Update args to dummy sock_update_classid().	2012-10-26 05:07:00 -04:00
codel.h	codel: refine one condition to avoid a nul rec_inv_sqrt	2012-08-10 16:52:54 -07:00
compat.h	…
datalink.h	…
dcbevent.h	…
dcbnl.h	…
dn.h	…
dn_dev.h	…
dn_fib.h	…
dn_neigh.h	…
dn_nsp.h	…
dn_route.h	decnet: use correct RCU API to deref sk_dst_cache field	2013-01-28 00:15:27 -05:00
dsa.h	…
dsfield.h	ipv6: Optimize ipv6_change_dsfield().	2013-01-09 23:59:53 -08:00
dst.h	Fix dst_neigh_lookup/dst_neigh_lookup_skb return value handling bug	2013-03-15 09:06:58 -04:00
dst_ops.h	net: Fix warnings in dst_ops.h	2012-07-19 10:43:03 -07:00
esp.h	…
ethoc.h	…
fib_rules.h	…
flow.h	ipv4: Add FLOWI_FLAG_KNOWN_NH	2012-10-08 17:42:36 -04:00
flow_keys.h	…
garp.h	…
gen_stats.h	…
genetlink.h	netlink: Rename pid to portid to avoid confusion	2012-09-10 15:30:41 -04:00
gre.h	…
gro_cells.h	gro: Fix kcalloc argument order	2013-01-27 22:46:33 -05:00
icmp.h	ipv4: fix error handling in icmp_protocol.	2013-02-22 15:10:18 -05:00
ieee80211_radiotap.h	mac80211: support (partial) VHT radiotap information	2012-11-27 11:56:18 +01:00
ieee802154.h	…
ieee802154_netdev.h	…
if_inet6.h	…
inet6_connection_sock.h	…
inet6_hashtables.h	ipv6: use a stronger hash for tcp	2013-02-21 18:15:58 -05:00
inet_common.h	net-tcp: Fast Open client - sendmsg(MSG_FASTOPEN)	2012-07-19 11:02:03 -07:00
inet_connection_sock.h	inet: Fix kmemleak in tcp_v4/6_syn_recv_sock and dccp_v4/6_request_recv_sock	2012-12-14 13:14:07 -05:00
inet_ecn.h	tunnel: drop packet if ECN present with not-ECT	2012-09-27 18:12:37 -04:00
inet_frag.h	inet: limit length of fragment queue hash table bucket lists	2013-03-19 10:28:36 -04:00
inet_hashtables.h	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
inet_sock.h	ipv6: use a stronger hash for tcp	2013-02-21 18:15:58 -05:00
inet_timewait_sock.h	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
inetpeer.h	…
ip.h	ipv4: Add a socket release callback for datagram sockets	2013-01-21 14:17:05 -05:00
ip6_checksum.h	ipv6: move csum_ipv6_magic() and udp6_csum_init() into static library	2013-01-08 17:56:10 -08:00
ip6_fib.h	ipv6: fix race condition regarding dst->expires and dst->from.	2013-02-20 15:11:45 -05:00
ip6_route.h	ipv6: Remove unused neigh argument for icmp6_dst_alloc() and its callers.	2013-01-18 14:41:13 -05:00
ip6_tunnel.h	gre: Support GRE over IPv6	2012-08-14 14:28:32 -07:00
ip_fib.h	ipv4: fix definition of FIB_TABLE_HASHSZ	2013-03-13 10:47:09 -04:00
ip_vs.h	ipvs: fix build errors related to config option combinations	2012-10-23 09:23:40 +09:00
ipcomp.h	…
ipconfig.h	…
ipip.h	IP_GRE: Fix IP-Identification.	2013-02-25 15:47:41 -05:00
ipv6.h	ipv6: use a stronger hash for tcp	2013-02-21 18:15:58 -05:00
ipx.h	…
iw_handler.h	…
lapb.h	…
lib80211.h	…
llc.h	llc: Remove stray reference to sysctl_llc_station_ack_timeout.	2012-09-17 13:13:24 -04:00
llc_c_ac.h	…
llc_c_ev.h	…
llc_c_st.h	…
llc_conn.h	…
llc_if.h	…
llc_pdu.h	…
llc_s_ac.h	…
llc_s_ev.h	…
llc_s_st.h	…
llc_sap.h	…
mac80211.h	mac80211: stop modifying HT SMPS capability	2013-02-15 09:41:41 +01:00
mac802154.h	…
mip6.h	…
mld.h	…
mrp.h	net/802: Implement Multiple Registration Protocol (MRP)	2013-02-10 20:37:22 -05:00
ndisc.h	ndisc: Move ndisc_opt_addr_space() to include/net/ndisc.h.	2013-01-21 13:33:14 -05:00
neighbour.h	net neighbour, decnet: Ensure to align device private data on preferred alignment.	2013-02-11 00:21:44 -05:00
net_namespace.h	proc: Usable inode numbers for the namespace file descriptors.	2012-11-20 04:19:49 -08:00
net_ratelimit.h	…
netdma.h	…
netevent.h	ipv6 netevent: Remove old_neigh from netevent_redirect.	2013-01-14 15:04:59 -05:00
netlabel.h	userns: Convert the audit loginuid to be a kuid	2012-09-17 18:08:54 -07:00
netlink.h	netlink: Rename pid to portid to avoid confusion	2012-09-10 15:30:41 -04:00
netprio_cgroup.h	netprio_cgroup: use cgroup->id instead of cgroup_netprio_state->prioidx	2012-11-22 07:32:47 -08:00
netrom.h	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
nexthop.h	…
nl802154.h	…
p8022.h	…
ping.h	…
pkt_cls.h	pkt_sched: namespace aware act_mirred	2013-01-14 15:09:36 -05:00
pkt_sched.h	sch_api: introduce qdisc_watchdog_schedule_ns()	2013-02-12 18:59:45 -05:00
protocol.h	net: Remove code duplication between offload structures	2012-11-15 17:39:51 -05:00
psnap.h	…
raw.h	…
rawv6.h	…
red.h	…
regulatory.h	regulatory: use RCU to protect last_request	2013-01-03 13:01:30 +01:00
request_sock.h	tcp: better retrans tracking for defer-accept	2012-11-03 14:45:00 -04:00
rose.h	…
route.h	ipv4: avoid a test in ip_rt_put()	2012-11-03 14:59:04 -04:00
rtnetlink.h	rtnelink: remove unused parameter from rtnl_create_link().	2012-11-30 12:24:40 -05:00
sch_generic.h	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
scm.h	net: Remove unnecessary NULL check in scm_destroy().	2012-09-24 15:52:33 -04:00
secure_seq.h	…
slhc_vj.h	…
snmp.h	net: avoid reloads in SNMP_UPD_PO_STATS	2012-08-06 13:40:47 -07:00
sock.h	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
stp.h	…
tcp.h	tcp: avoid wakeups for pure ACK	2013-02-28 15:37:29 -05:00
tcp_memcontrol.h	…
tcp_states.h	…
timewait_sock.h	…
transp_v6.h	ipv6: rename datagram_send_ctl and datagram_recv_ctl	2013-01-31 13:53:08 -05:00
udp.h	…
udplite.h	…
wext.h	…
wimax.h	…
wpan-phy.h	…
x25.h	…
x25device.h	…
xfrm.h	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next	2013-02-14 13:29:20 -05:00