linux/include/net
David S. Miller 3639339553 ipv4: Handle PMTU in all ICMP error handlers.
With ip_rt_frag_needed() removed, we have to explicitly update PMTU
information in every ICMP error handler.

Create two helper functions to facilitate this.

1) ipv4_sk_update_pmtu()

   This updates the PMTU when we have a socket context to
   work with.

2) ipv4_update_pmtu()

   Raw version, used when no socket context is available.  For this
   interface, we essentially just pass in explicit arguments for
   the flow identity information we would have extracted from the
   socket.

   And you'll notice that ipv4_sk_update_pmtu() is simply implemented
   in terms of ipv4_update_pmtu()

Note that __ip_route_output_key() is used, rather than something like
ip_route_output_flow() or ip_route_output_key().  This is because we
absolutely do not want to end up with a route that does IPSEC
encapsulation and the like.  Instead, we only want the route that
would get us to the node described by the outermost IP header.

Reported-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-14 22:22:07 -07:00
..
9p 9p: Reduce object size with CONFIG_NET_9P_DEBUG 2012-01-05 10:51:44 -06:00
bluetooth Bluetooth: Create flags for bt_sk() 2012-05-16 16:14:17 -03:00
caif caif-hsi: robust frame aggregation for HSI 2012-04-13 11:37:36 -04:00
irda
iucv af_iucv: add shutdown for HS transport 2012-03-07 22:52:24 -08:00
netfilter netfilter: nf_conntrack: add namespace support for cttimeout 2012-06-07 14:58:41 +02:00
netns Merge branch 'master' of git://1984.lsi.us.es/net-next 2012-06-11 12:56:14 -07:00
nfc NFC: Introduce target mode rx data callback 2012-06-04 21:34:31 +02:00
phonet
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-16 22:17:37 -04:00
tc_act
act_api.h
addrconf.h ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
af_ieee802154.h
af_rxrpc.h
af_unix.h af_unix: speedup /proc/net/unix 2012-06-08 14:27:23 -07:00
ah.h
arp.h ipv4: Eliminate spurious argument to __ipv4_neigh_lookup 2012-02-15 17:48:35 -05:00
atmclip.h atm: clip: Use device neigh support on top of "arp_tbl". 2011-11-30 18:51:03 -05:00
ax25.h net ax25: Fix the build when sysctl support is disabled. 2012-04-23 22:14:47 -04:00
ax88796.h
cfg80211-wext.h cfg80211: remove unused wext handler exports 2011-08-08 14:26:29 -04:00
cfg80211.h cfg80211: clarify set_channel APIs 2012-06-06 15:18:17 -04:00
checksum.h
cipso_ipv4.h cipso: handle CIPSO options correctly when NetLabel is disabled 2012-06-01 14:18:29 -04:00
cls_cgroup.h
codel.h fq_codel: should use qdisc backlog as threshold 2012-05-16 15:30:26 -04:00
compat.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
datalink.h
dcbevent.h dcb: Add stub routines for !CONFIG_DCB 2011-10-06 15:49:51 -04:00
dcbnl.h net/dcb: Add an optional max rate attribute 2012-04-05 05:08:04 -04:00
dn_dev.h
dn_fib.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
dn_neigh.h
dn_nsp.h
dn_route.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
dn.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
dsa.h dsa: Include linux/if_ether.h to fix build error 2011-12-01 11:41:06 -05:00
dsfield.h
dst_ops.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
dst.h ipv6: fix incorrect ipsec fragment 2012-05-27 01:11:22 -04:00
esp.h
ethoc.h
fib_rules.h
flow_keys.h flow_dissector: use a 64bit load/store 2011-11-29 13:17:03 -05:00
flow.h ipv4: reset flowi parameters on route connect 2012-02-04 19:29:48 -05:00
garp.h
gen_stats.h
genetlink.h net: Deinline __nlmsg_put and genlmsg_put. -7k code on i386 defconfig. 2012-01-30 15:22:06 -05:00
gre.h
icmp.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
ieee80211_radiotap.h wireless: move ieee80211chan2mhz macro 2011-11-11 12:32:50 -05:00
ieee802154_netdev.h mac802154: declare reduced mlme operations 2012-05-16 15:16:56 -04:00
ieee802154.h 6LoWPAN: add fragmentation support 2011-11-14 00:19:42 -05:00
if_inet6.h net: delete all instances of special processing for token ring 2012-05-15 20:14:35 -04:00
inet6_connection_sock.h tcp: bind() use stronger condition for bind_conflict 2012-04-14 15:28:55 -04:00
inet6_hashtables.h net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
inet_common.h
inet_connection_sock.h tcp: Get rid of inetpeer special cases. 2012-06-09 01:25:47 -07:00
inet_ecn.h inet: add rfc 3168 extract in front of INET_ECN_encapsulate() 2011-10-22 01:25:23 -04:00
inet_frag.h ip_frag: struct inet_frags match() method returns a bool 2012-05-18 01:40:27 -04:00
inet_hashtables.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
inet_sock.h net: implement IP_RECVTOS for IP_PKTOPTIONS 2012-02-13 00:46:41 -05:00
inet_timewait_sock.h inet: remove rcu protection on tw_net 2011-12-14 13:34:55 -05:00
inetpeer.h inet: Avoid potential NULL peer dereference. 2012-06-11 04:13:57 -07:00
ip6_checksum.h
ip6_fib.h inet: Add inetpeer tree roots to the FIB tables. 2012-06-11 02:09:16 -07:00
ip6_route.h inet: Fix BUG triggered by __rt{,6}_get_peer(). 2012-06-11 15:52:29 -07:00
ip6_tunnel.h
ip_fib.h inet: Add inetpeer tree roots to the FIB tables. 2012-06-11 02:09:16 -07:00
ip_vs.h ipvs: add support for sync threads 2012-05-08 19:40:33 +02:00
ip.h net: delete all instances of special processing for token ring 2012-05-15 20:14:35 -04:00
ipcomp.h
ipconfig.h
ipip.h tunnel: implement 64 bits statistics 2012-04-14 14:47:05 -04:00
ipv6.h ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
ipx.h
iw_handler.h
lapb.h lapb: Neaten debugging 2012-05-17 18:45:20 -04:00
lib80211.h include: replace linux/module.h with "struct module" wherever possible 2011-10-31 19:32:32 -04:00
llc_c_ac.h
llc_c_ev.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h net: delete all instances of special processing for token ring 2012-05-15 20:14:35 -04:00
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
llc.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
mac80211.h mac80211: unify SW/offload remain-on-channel 2012-06-06 15:31:18 -04:00
mac802154.h mac802154: RX data path 2012-05-16 15:16:44 -04:00
mip6.h
mld.h
ndisc.h Treat ND option 31 as userland (DNSSL support) 2012-04-12 15:56:57 -04:00
neighbour.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
net_namespace.h net sysctl: Add place holder functions for when sysctl support is compiled out of the kernel. 2012-04-23 19:24:28 -04:00
net_ratelimit.h
netdma.h
netevent.h
netlabel.h doc: Update the email address for Paul Moore in various source files 2011-08-01 17:58:33 -07:00
netlink.h netlink: Delete all NLA_PUT*() macros. 2012-04-02 04:33:45 -04:00
netprio_cgroup.h netprio_cgroup: fix wrong memory access when NETPRIO_CGROUP=m 2012-02-10 15:08:57 -05:00
netrom.h
nexthop.h
nl802154.h
p8022.h
ping.h
pkt_cls.h
pkt_sched.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
protocol.h net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
psnap.h
raw.h
rawv6.h ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
red.h net_sched: red: Make minor corrections to comments 2012-04-16 23:53:11 -04:00
regulatory.h cfg80211: pass DFS region to drivers through reg_notifier() 2011-11-21 16:20:41 -05:00
request_sock.h tcp: Change possible SYN flooding messages 2011-09-15 14:49:43 -04:00
rose.h
route.h ipv4: Handle PMTU in all ICMP error handlers. 2012-06-14 22:22:07 -07:00
rtnetlink.h rtnetlink: ops->get_tx_queue() cannot take a const 'tb'. 2012-04-13 14:21:04 -04:00
sch_generic.h bonding: Fix corrupted queue_mapping 2012-06-12 15:29:21 -07:00
scm.h af_unix: dont send SCM_CREDENTIALS by default 2011-09-28 13:29:50 -04:00
secure_seq.h tcp: add const qualifiers where possible 2011-10-21 05:22:42 -04:00
slhc_vj.h
snmp.h Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2012-01-09 13:08:28 -08:00
sock.h memcg: decrement static keys at real destroy time 2012-05-29 16:22:28 -07:00
stp.h
tcp_memcontrol.h cgroup: pass struct mem_cgroup instead of struct cgroup to socket memcg 2012-04-10 10:04:07 -07:00
tcp_states.h
tcp.h [PATCH] tcp: Cache inetpeer in timewait socket, and only when necessary. 2012-06-09 14:56:12 -07:00
timewait_sock.h [PATCH] tcp: Cache inetpeer in timewait socket, and only when necessary. 2012-06-09 14:56:12 -07:00
transp_v6.h net: relax PKTINFO non local ipv6 udp xmit check 2011-08-30 17:39:01 -04:00
udp.h net/ipv6/udp: UDP encapsulation: introduce encap_rcv hook into IPv6 2012-04-28 22:21:51 -04:00
udplite.h net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
wext.h
wimax.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
wpan-phy.h mac802154: monitor device support 2012-05-16 15:17:08 -04:00
x25.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
x25device.h
xfrm.h xfrm: Convert several xfrm policy match functions to bool. 2012-05-15 15:04:57 -04:00