- 09 5月, 2014 1 次提交
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由 Tom Herbert 提交于
Moving validation of UDP checksum to be done in UDP not encap layer. Signed-off-by: NTom Herbert <therbert@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 5月, 2014 2 次提交
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由 Tom Herbert 提交于
Commit 4068579e ("net: Implmement RFC 6936 (zero RX csums for UDP/IPv6)") introduced zero checksums being allowed for IPv6, but in the case that a socket disallows a zero checksum on RX we need to sock_put. Signed-off-by: NTom Herbert <therbert@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Tom Herbert 提交于
RFC 6936 relaxes the requirement of RFC 2460 that UDP/IPv6 packets which are received with a zero UDP checksum value must be dropped. RFC 6936 allows zero checksums to support tunnels over UDP. When sk_no_check is set we allow on a socket we allow a zero IPv6 UDP checksum. This is for both sending zero checksum and accepting a zero checksum on receive. Signed-off-by: NTom Herbert <therbert@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 5月, 2014 1 次提交
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由 Lorenzo Colitti 提交于
This replaces 6 identical code snippets with a call to a new static inline function. Signed-off-by: NLorenzo Colitti <lorenzo@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 1月, 2014 1 次提交
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由 Hannes Frederic Sowa 提交于
We currently don't report IPV6_RECVPKTINFO in cmsg access ancillary data for IPv4 datagrams on IPv6 sockets. This patch splits the ip6_datagram_recv_ctl into two functions, one which handles both protocol families, AF_INET and AF_INET6, while the ip6_datagram_recv_specific_ctl only handles IPv6 cmsg data. ip6_datagram_recv_*_ctl never reported back any errors, so we can make them return void. Also provide a helper for protocols which don't offer dual personality to further use ip6_datagram_recv_ctl, which is exported to modules. I needed to shuffle the code for ping around a bit to make it easier to implement dual personality for ping ipv6 sockets in future. Reported-by: NGert Doering <gert@space.net> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 19 1月, 2014 1 次提交
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由 Steffen Hurrle 提交于
This is a follow-up patch to f3d33426 ("net: rework recvmsg handler msg_name and msg_namelen logic"). DECLARE_SOCKADDR validates that the structure we use for writing the name information to is not larger than the buffer which is reserved for msg->msg_name (which is 128 bytes). Also use DECLARE_SOCKADDR consistently in sendmsg code paths. Signed-off-by: NSteffen Hurrle <steffen@hurrle.net> Suggested-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 19 12月, 2013 1 次提交
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由 Hannes Frederic Sowa 提交于
IPV6_PMTU_INTERFACE is the same as IPV6_PMTU_PROBE for ipv6. Add it nontheless for symmetry with IPv4 sockets. Also drop incoming MTU information if this mode is enabled. The additional bit in ipv6_pinfo just eats in the padding behind the bitfield. There are no changes to the layout of the struct at all. Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 12月, 2013 1 次提交
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由 Florent Fourcot 提交于
This patch is following b579035f "ipv6: remove old conditions on flow label sharing" Since there is no reason to restrict a label to a destination, we should not erase the destination value of a socket with the value contained in the flow label storage. This patch allows to really have the same flow label to more than one destination. Signed-off-by: NFlorent Fourcot <florent.fourcot@enst-bretagne.fr> Reviewed-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 12月, 2013 1 次提交
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由 Steffen Klassert 提交于
FLOWI_FLAG_CAN_SLEEP was used to notify xfrm about the posibility to sleep until the needed states are resolved. This code is gone, so FLOWI_FLAG_CAN_SLEEP is not needed anymore. Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
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- 24 11月, 2013 1 次提交
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由 Hannes Frederic Sowa 提交于
Commit bceaa902 ("inet: prevent leakage of uninitialized memory to user in recv syscalls") conditionally updated addr_len if the msg_name is written to. The recv_error and rxpmtu functions relied on the recvmsg functions to set up addr_len before. As this does not happen any more we have to pass addr_len to those functions as well and set it to the size of the corresponding sockaddr length. This broke traceroute and such. Fixes: bceaa902 ("inet: prevent leakage of uninitialized memory to user in recv syscalls") Reported-by: NBrad Spengler <spender@grsecurity.net> Reported-by: Tom Labanowski Cc: mpb <mpb.mail@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 19 11月, 2013 1 次提交
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由 Hannes Frederic Sowa 提交于
Only update *addr_len when we actually fill in sockaddr, otherwise we can return uninitialized memory from the stack to the caller in the recvfrom, recvmmsg and recvmsg syscalls. Drop the the (addr_len == NULL) checks because we only get called with a valid addr_len pointer either from sock_common_recvmsg or inet_recvmsg. If a blocking read waits on a socket which is concurrently shut down we now return zero and set msg_msgnamelen to 0. Reported-by: Nmpb <mpb.mail@gmail.com> Suggested-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 10月, 2013 3 次提交
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由 Hannes Frederic Sowa 提交于
Initialize the ehash and ipv6_hash_secrets with net_get_random_once. Each compilation unit gets its own secret now: ipv4/inet_hashtables.o ipv4/udp.o ipv6/inet6_hashtables.o ipv6/udp.o rds/connection.o The functions still get inlined into the hashing functions. In the fast path we have at most two (needed in ipv6) if (unlikely(...)). Cc: Eric Dumazet <edumazet@google.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hannes Frederic Sowa 提交于
This patch splits the inet6_ehashfn into separate ones in ipv6/inet6_hashtables.o and ipv6/udp.o to ease the introduction of seperate secrets keys later. Cc: Eric Dumazet <edumazet@google.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jiri Pirko 提交于
if up->pending != 0 dontfrag is left with default value -1. That causes that application that do: sendto len>mtu flag MSG_MORE sendto len>mtu flag 0 will receive EMSGSIZE errno as the result of the second sendto. This patch fixes it by respecting IPV6_DONTFRAG socket option. introduced by: commit 4b340ae2 "IPv6: Complete IPV6_DONTFRAG support" Signed-off-by: NJiri Pirko <jiri@resnulli.us> Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 09 10月, 2013 2 次提交
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由 Eric Dumazet 提交于
TCP listener refactoring, part 4 : To speed up inet lookups, we moved IPv4 addresses from inet to struct sock_common Now is time to do the same for IPv6, because it permits us to have fast lookups for all kind of sockets, including upcoming SYN_RECV. Getting IPv6 addresses in TCP lookups currently requires two extra cache lines, plus a dereference (and memory stall). inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6 This patch is way bigger than its IPv4 counter part, because for IPv4, we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6, it's not doable easily. inet6_sk(sk)->daddr becomes sk->sk_v6_daddr inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr at the same offset. We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic macro. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Shawn Bohrer 提交于
UDP sockets can receive packets from multiple endpoints and thus may be received on multiple receive queues. Since packets packets can arrive on multiple receive queues we should not mark the napi_id for all packets. This makes busy read/poll only work for connected UDP sockets. This additionally enables busy read/poll for UDP multicast packets as long as the socket is connected by moving the check into __udp_queue_rcv_skb(). Signed-off-by: NShawn Bohrer <sbohrer@rgmadvisors.com> Suggested-by: NEric Dumazet <edumazet@google.com> Acked-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 10月, 2013 1 次提交
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由 Eric Dumazet 提交于
TCP listener refactoring, part 2 : We can use a generic lookup, sockets being in whatever state, if we are sure all relevant fields are at the same place in all socket types (ESTABLISH, TIME_WAIT, SYN_RECV) This patch removes these macros : inet_addrpair, inet_addrpair, tw_addrpair, tw_portpair And adds : sk_portpair, sk_addrpair, sk_daddr, sk_rcv_saddr Then, INET_TW_MATCH() is really the same than INET_MATCH() Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 24 9月, 2013 1 次提交
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由 Duan Jiong 提交于
Redirect isn't an error condition, it should leave the error handler without touching the socket. Signed-off-by: NDuan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 7月, 2013 2 次提交
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由 Eliezer Tamir 提交于
Rename ndo_ll_poll to ndo_busy_poll. Rename sk_mark_ll to sk_mark_napi_id. Rename skb_mark_ll to skb_mark_napi_id. Correct all useres of these functions. Update comments and defines in include/net/busy_poll.h Signed-off-by: NEliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eliezer Tamir 提交于
Rename the file and correct all the places where it is included. Signed-off-by: NEliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 03 7月, 2013 1 次提交
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由 Hannes Frederic Sowa 提交于
We accidentally call down to ip6_push_pending_frames when uncorking pending AF_INET data on a ipv6 socket. This results in the following splat (from Dave Jones): skbuff: skb_under_panic: text:ffffffff816765f6 len:48 put:40 head:ffff88013deb6df0 data:ffff88013deb6dec tail:0x2c end:0xc0 dev:<NULL> ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:126! invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC Modules linked in: dccp_ipv4 dccp 8021q garp bridge stp dlci mpoa snd_seq_dummy sctp fuse hidp tun bnep nfnetlink scsi_transport_iscsi rfcomm can_raw can_bcm af_802154 appletalk caif_socket can caif ipt_ULOG x25 rose af_key pppoe pppox ipx phonet irda llc2 ppp_generic slhc p8023 psnap p8022 llc crc_ccitt atm bluetooth +netrom ax25 nfc rfkill rds af_rxrpc coretemp hwmon kvm_intel kvm crc32c_intel snd_hda_codec_realtek ghash_clmulni_intel microcode pcspkr snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep usb_debug snd_seq snd_seq_device snd_pcm e1000e snd_page_alloc snd_timer ptp snd pps_core soundcore xfs libcrc32c CPU: 2 PID: 8095 Comm: trinity-child2 Not tainted 3.10.0-rc7+ #37 task: ffff8801f52c2520 ti: ffff8801e6430000 task.ti: ffff8801e6430000 RIP: 0010:[<ffffffff816e759c>] [<ffffffff816e759c>] skb_panic+0x63/0x65 RSP: 0018:ffff8801e6431de8 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffff8802353d3cc0 RCX: 0000000000000006 RDX: 0000000000003b90 RSI: ffff8801f52c2ca0 RDI: ffff8801f52c2520 RBP: ffff8801e6431e08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88022ea0c800 R13: ffff88022ea0cdf8 R14: ffff8802353ecb40 R15: ffffffff81cc7800 FS: 00007f5720a10740(0000) GS:ffff880244c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000005862000 CR3: 000000022843c000 CR4: 00000000001407e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Stack: ffff88013deb6dec 000000000000002c 00000000000000c0 ffffffff81a3f6e4 ffff8801e6431e18 ffffffff8159a9aa ffff8801e6431e90 ffffffff816765f6 ffffffff810b756b 0000000700000002 ffff8801e6431e40 0000fea9292aa8c0 Call Trace: [<ffffffff8159a9aa>] skb_push+0x3a/0x40 [<ffffffff816765f6>] ip6_push_pending_frames+0x1f6/0x4d0 [<ffffffff810b756b>] ? mark_held_locks+0xbb/0x140 [<ffffffff81694919>] udp_v6_push_pending_frames+0x2b9/0x3d0 [<ffffffff81694660>] ? udplite_getfrag+0x20/0x20 [<ffffffff8162092a>] udp_lib_setsockopt+0x1aa/0x1f0 [<ffffffff811cc5e7>] ? fget_light+0x387/0x4f0 [<ffffffff816958a4>] udpv6_setsockopt+0x34/0x40 [<ffffffff815949f4>] sock_common_setsockopt+0x14/0x20 [<ffffffff81593c31>] SyS_setsockopt+0x71/0xd0 [<ffffffff816f5d54>] tracesys+0xdd/0xe2 Code: 00 00 48 89 44 24 10 8b 87 d8 00 00 00 48 89 44 24 08 48 8b 87 e8 00 00 00 48 c7 c7 c0 04 aa 81 48 89 04 24 31 c0 e8 e1 7e ff ff <0f> 0b 55 48 89 e5 0f 0b 55 48 89 e5 0f 0b 55 48 89 e5 0f 0b 55 RIP [<ffffffff816e759c>] skb_panic+0x63/0x65 RSP <ffff8801e6431de8> This patch adds a check if the pending data is of address family AF_INET and directly calls udp_push_ending_frames from udp_v6_push_pending_frames if that is the case. This bug was found by Dave Jones with trinity. (Also move the initialization of fl6 below the AF_INET check, even if not strictly necessary.) Cc: Dave Jones <davej@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 6月, 2013 1 次提交
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由 Eliezer Tamir 提交于
Add upport for busy-polling on UDP sockets. In __udp[46]_lib_rcv add a call to sk_mark_ll() to copy the napi_id from the skb into the sk. This is done at the earliest possible moment, right after we identify which socket this skb is for. In __skb_recv_datagram When there is no data and the user tries to read we busy poll. Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: NEliezer Tamir <eliezer.tamir@linux.intel.com> Acked-by: NEric Dumazet <edumazet@google.com> Tested-by: NWillem de Bruijn <willemb@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 6月, 2013 1 次提交
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由 Lorenzo Colitti 提交于
udp6_sock_seq_show and raw6_sock_seq_show are identical, except the UDP version displays ports and the raw version displays the protocol. Refactor most of the code in these two functions into a new common ip6_dgram_sock_seq_show function, in preparation for using it to display ICMPv6 sockets as well. Also reduce the indentation in parts of include/net/transp_v6.h to improve readability. Compiles and displays reasonable results with CONFIG_IPV6={n,m,y} Signed-off-by: NLorenzo Colitti <lorenzo@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 5月, 2013 1 次提交
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由 Eric Dumazet 提交于
We have seen multiple NULL dereferences in __inet6_lookup_established() After analysis, I found that inet6_sk() could be NULL while the check for sk_family == AF_INET6 was true. Bug was added in linux-2.6.29 when RCU lookups were introduced in UDP and TCP stacks. Once an IPv6 socket, using SLAB_DESTROY_BY_RCU is inserted in a hash table, we no longer can clear pinet6 field. This patch extends logic used in commit fcbdf09d ("net: fix nulls list corruptions in sk_prot_alloc") TCP/UDP/UDPLite IPv6 protocols provide their own .clear_sk() method to make sure we do not clear pinet6 field. At socket clone phase, we do not really care, as cloning the parent (non NULL) pinet6 is not adding a fatal race. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 30 4月, 2013 1 次提交
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由 Eric Dumazet 提交于
Add MIB counters for checksum errors in IP layer, and TCP/UDP/ICMP layers, to help diagnose problems. $ nstat -a | grep Csum IcmpInCsumErrors 72 0.0 TcpInCsumErrors 382 0.0 UdpInCsumErrors 463221 0.0 Icmp6InCsumErrors 75 0.0 Udp6InCsumErrors 173442 0.0 IpExtInCsumErrors 10884 0.0 Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 3月, 2013 1 次提交
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由 Tom Parkin 提交于
Users of udp encapsulation currently have an encap_rcv callback which they can use to hook into the udp receive path. In situations where a encapsulation user allocates resources associated with a udp encap socket, it may be convenient to be able to also hook the proto .destroy operation. For example, if an encap user holds a reference to the udp socket, the destroy hook might be used to relinquish this reference. This patch adds a socket destroy hook into udp, which is set and enabled in the same way as the existing encap_rcv hook. Signed-off-by: NTom Parkin <tparkin@katalix.com> Signed-off-by: NJames Chapman <jchapman@katalix.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 09 3月, 2013 1 次提交
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由 Hannes Frederic Sowa 提交于
This patch requires multicast interface-scoped addresses to supply a sin6_scope_id. Because the sin6_scope_id is now also correctly used in case of interface-scoped multicast traffic this enables one to use interface scoped addresses over interfaces which are not targeted by the default multicast route (the route has to be put there manually, though). getsockname() and getpeername() now return the correct sin6_scope_id in case of interface-local mc addresses. v2: a) rebased ontop of patch 1/4 (now uses ipv6_addr_props) v3: a) reverted changes for ipv6_addr_props v4: a) unchanged Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>dave Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 2月, 2013 1 次提交
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由 Tom Parkin 提交于
The datagram_*_ctl functions in net/ipv6/datagram.c are IPv6-specific. Since datagram_send_ctl is publicly exported it should be appropriately named to reflect the fact that it's for IPv6 only. Signed-off-by: NTom Parkin <tparkin@katalix.com> Signed-off-by: NJames Chapman <jchapman@katalix.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 24 1月, 2013 1 次提交
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由 Tom Herbert 提交于
Motivation for soreuseport would be something like a DNS server. An alternative would be to recv on the same socket from multiple threads. As in the case of TCP, the load across these threads tends to be disproportionate and we also see a lot of contection on the socket lock. Note that SO_REUSEADDR already allows multiple UDP sockets to bind to the same port, however there is no provision to prevent hijacking and nothing to distribute packets across all the sockets sharing the same bound port. This patch does not change the semantics of SO_REUSEADDR, but provides usable functionality of it for unicast. Signed-off-by: NTom Herbert <therbert@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 09 1月, 2013 1 次提交
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由 Cong Wang 提交于
As suggested by David, udp6_csum_init() is too big to be inlined, move it to ipv6 static library, net/ipv6/ip6_checksum.c. And the generic csum_ipv6_magic() too. Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 11月, 2012 4 次提交
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由 Vlad Yasevich 提交于
Sing GSO support is now separate, pull it out of the module and make it its own init call. Remove the cleanup functions as they are no longer called. Signed-off-by: NVlad Yasevich <vyasevic@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vlad Yasevich 提交于
Pull UDP GSO code into a separate file in preparation for moving the code out of the module. Signed-off-by: NVlad Yasevich <vyasevic@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vlad Yasevich 提交于
Switch IPv6 protocol to using the new GRO/GSO calls and data. Signed-off-by: NVlad Yasevich <vyasevic@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vlad Yasevich 提交于
Create a new data structure for IPv6 protocols that holds GRO/GSO callbacks and a new array to track the protocols that register GRO/GSO. Signed-off-by: NVlad Yasevich <vyasevic@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 9月, 2012 1 次提交
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由 Eric Dumazet 提交于
In UDP recvmsg(), we miss an increase of UDP_MIB_INERRORS if the copy of skb to userspace failed for whatever reason. Reported-by: NShawn Bohrer <sbohrer@rgmadvisors.com> Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 15 8月, 2012 1 次提交
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由 Eric W. Biederman 提交于
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: James Morris <jmorris@namei.org> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: Patrick McHardy <kaber@trash.net> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Sridhar Samudrala <sri@us.ibm.com> Acked-by: NVlad Yasevich <vyasevich@gmail.com> Acked-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NSerge Hallyn <serge.hallyn@canonical.com> Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
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- 12 7月, 2012 1 次提交
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 6月, 2012 1 次提交
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由 Eric Dumazet 提交于
dropwatch wrongly diagnose all received UDP packets as drops. This patch removes trace_kfree_skb() done in skb_free_datagram_locked(). Locations calling skb_free_datagram_locked() should do it on their own. As a result, drops are accounted on the right function. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 6月, 2012 1 次提交
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由 David S. Miller 提交于
One tricky issue on the ipv6 side vs. ipv4 is that the ICMP callouts to handle the error pass the 32-bit info cookie in network byte order whereas ipv4 passes it around in host byte order. Like the ipv4 side, we have two helper functions. One for when we have a socket context and one for when we do not. ip6ip6 tunnels are not handled here, because they handle PMTU events by essentially relaying another ICMP packet-too-big message back to the original sender. This patch allows us to get rid of rt6_do_pmtu_disc(). It handles all kinds of situations that simply cannot happen when we do the PMTU update directly using a fully resolved route. In fact, the "plen == 128" check in ip6_rt_update_pmtu() can very likely be removed or changed into a BUG_ON() check. We should never have a prefixed ipv6 route when we get there. Another piece of strange history here is that TCP and DCCP, unlike in ipv4, never invoke the update_pmtu() method from their ICMP error handlers. This is incredibly astonishing since this is the context where we have the most accurate context in which to make a PMTU update, namely we have a fully connected socket and associated cached socket route. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 5月, 2012 1 次提交
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由 Jeffrin Jose 提交于
Fixed space issues relating to operators found by checkpatch.pl tool in net/ipv6/udp.c Signed-off-by: NJeffrin Jose <ahiliation@yahoo.co.in> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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