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2010-04-30ipv6: cleanup: remove unneeded null checkDan Carpenter1-2/+1
We dereference "sk" unconditionally elsewhere in the function. This was left over from: b30bd282 "ip6_xmit: remove unnecessary NULL ptr check". According to that commit message, "the sk argument to ip6_xmit is never NULL nowadays since the skb->priority assigment expects a valid socket." Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-04-27Merge branch 'master' of ↵David S. Miller1-1/+1
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/e100.c drivers/net/e1000e/netdev.c
2010-04-23IPv6: Complete IPV6_DONTFRAG supportBrian Haley1-8/+16
Finally add support to detect a local IPV6_DONTFRAG event and return the relevant data to the user if they've enabled IPV6_RECVPATHMTU on the socket. The next recvmsg() will return no data, but have an IPV6_PATHMTU as ancillary data. Signed-off-by: Brian Haley <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-04-23IPv6: Add dontfrag argument to relevant functionsBrian Haley1-1/+1
Add dontfrag argument to relevant functions for IPV6_DONTFRAG support, as well as allowing the value to be passed-in via ancillary cmsg data. Signed-off-by: Brian Haley <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-04-21ipv6: allow to send packet after receiving ICMPv6 Too Big message with MTU ↵Shan Wei1-1/+1
field less than IPV6_MIN_MTU According to RFC2460, PMTU is set to the IPv6 Minimum Link MTU (1280) and a fragment header should always be included after a node receiving Too Big message reporting PMTU is less than the IPv6 Minimum Link MTU. After receiving a ICMPv6 Too Big message reporting PMTU is less than the IPv6 Minimum Link MTU, sctp *can't* send any data/control chunk that total length including IPv6 head and IPv6 extend head is less than IPV6_MIN_MTU(1280 bytes). The failure occured in p6_fragment(), about reason see following(take SHUTDOWN chunk for example): sctp_packet_transmit (SHUTDOWN chunk, len=16 byte) |------sctp_v6_xmit (local_df=0) |------ip6_xmit |------ip6_output (dst_allfrag is ture) |------ip6_fragment In ip6_fragment(), for local_df=0, drops the the packet and returns EMSGSIZE. The patch fixes it with adding check length of skb->len. In this case, Ipv6 not to fragment upper protocol data, just only add a fragment header before it. Signed-off-by: Shan Wei <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-04-21Merge branch 'master' of ↵David S. Miller1-1/+1
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-6000.c net/core/dev.c
2010-04-20Merge branch 'master' of /repos/git/net-next-2.6Patrick McHardy1-6/+3
Conflicts: Documentation/feature-removal-schedule.txt net/ipv6/netfilter/ip6t_REJECT.c net/netfilter/xt_limit.c Signed-off-by: Patrick McHardy <[email protected]>
2010-04-19netfilter: xt_TEE: have cloned packet travel through Xtables tooJan Engelhardt1-1/+0
Since Xtables is now reentrant/nestable, the cloned packet can also go through Xtables and be subject to rules itself. Signed-off-by: Jan Engelhardt <[email protected]> Signed-off-by: Patrick McHardy <[email protected]>
2010-04-19netfilter: xtables: inclusion of xt_TEEJan Engelhardt1-0/+1
xt_TEE can be used to clone and reroute a packet. This can for example be used to copy traffic at a router for logging purposes to another dedicated machine. References: http://www.gossamer-threads.com/lists/iptables/devel/68781 Signed-off-by: Jan Engelhardt <[email protected]> Signed-off-by: Patrick McHardy <[email protected]>
2010-04-15ipv6: fix the comment of ip6_xmit()Shan Wei1-1/+1
ip6_xmit() is used by upper transport protocol. Signed-off-by: Shan Wei <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-04-15net: replace ipfragok with skb->local_dfShan Wei1-1/+1
As Herbert Xu said: we should be able to simply replace ipfragok with skb->local_df. commit f88037(sctp: Drop ipfargok in sctp_xmit function) has droped ipfragok and set local_df value properly. The patch kills the ipfragok parameter of .queue_xmit(). Signed-off-by: Shan Wei <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-04-15ipv6: cancel to setting local_df in ip6_xmit()Shan Wei1-4/+0
commit f88037(sctp: Drop ipfargok in sctp_xmit function) has droped ipfragok and set local_df value properly. So the change of commit 77e2f1(ipv6: Fix ip6_xmit to send fragments if ipfragok is true) is not needed. So the patch remove them. Signed-off-by: Shan Wei <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-04-15ip: Fix ip_dev_loopback_xmit()Eric Dumazet1-1/+1
Eric Paris got following trace with a linux-next kernel [ 14.203970] BUG: using smp_processor_id() in preemptible [00000000] code: avahi-daemon/2093 [ 14.204025] caller is netif_rx+0xfa/0x110 [ 14.204035] Call Trace: [ 14.204064] [<ffffffff81278fe5>] debug_smp_processor_id+0x105/0x110 [ 14.204070] [<ffffffff8142163a>] netif_rx+0xfa/0x110 [ 14.204090] [<ffffffff8145b631>] ip_dev_loopback_xmit+0x71/0xa0 [ 14.204095] [<ffffffff8145b892>] ip_mc_output+0x192/0x2c0 [ 14.204099] [<ffffffff8145d610>] ip_local_out+0x20/0x30 [ 14.204105] [<ffffffff8145d8ad>] ip_push_pending_frames+0x28d/0x3d0 [ 14.204119] [<ffffffff8147f1cc>] udp_push_pending_frames+0x14c/0x400 [ 14.204125] [<ffffffff814803fc>] udp_sendmsg+0x39c/0x790 [ 14.204137] [<ffffffff814891d5>] inet_sendmsg+0x45/0x80 [ 14.204149] [<ffffffff8140af91>] sock_sendmsg+0xf1/0x110 [ 14.204189] [<ffffffff8140dc6c>] sys_sendmsg+0x20c/0x380 [ 14.204233] [<ffffffff8100ad82>] system_call_fastpath+0x16/0x1b While current linux-2.6 kernel doesnt emit this warning, bug is latent and might cause unexpected failures. ip_dev_loopback_xmit() runs in process context, preemption enabled, so must call netif_rx_ni() instead of netif_rx(), to make sure that we process pending software interrupt. Same change for ip6_dev_loopback_xmit() Reported-by: Eric Paris <[email protected]> Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-04-13netfilter: ipv6: add IPSKB_REROUTED exclusion to NF_HOOK/POSTROUTING invocationJan Engelhardt1-2/+3
Similar to how IPv4's ip_output.c works, have ip6_output also check the IPSKB_REROUTED flag. It will be set from xt_TEE for cloned packets since Xtables can currently only deal with a single packet in flight at a time. Signed-off-by: Jan Engelhardt <[email protected]> Acked-by: David S. Miller <[email protected]> [Patrick: changed to use an IP6SKB value instead of IPSKB] Signed-off-by: Patrick McHardy <[email protected]>
2010-04-13netfilter: ipv6: move POSTROUTING invocation before fragmentationJan Engelhardt1-26/+23
Patrick McHardy notes: "We used to invoke IPv4 POST_ROUTING after fragmentation as well just to defragment the packets in conntrack immediately afterwards, but that got changed during the netfilter-ipsec integration. Ideally IPv6 would behave like IPv4." This patch makes it so. Sending an oversized frame (e.g. `ping6 -s64000 -c1 ::1`) will now show up in POSTROUTING as a single skb rather than multiple ones. Signed-off-by: Jan Engelhardt <[email protected]> Signed-off-by: Patrick McHardy <[email protected]>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo1-0/+1
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <[email protected]> Guess-its-ok-by: Christoph Lameter <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Lee Schermerhorn <[email protected]>
2010-03-25netfilter: ipv6: use NFPROTO values for NF_HOOK invocationJan Engelhardt1-8/+8
The semantic patch that was used: // <smpl> @@ @@ (NF_HOOK |NF_HOOK_THRESH |nf_hook )( -PF_INET6, +NFPROTO_IPV6, ...) // </smpl> Signed-off-by: Jan Engelhardt <[email protected]>
2010-02-26ipv6: Use 1280 as min MTU for ipv6 forwardingUlrich Weber1-4/+8
Clients will set their MTU to 1280 if they receive a ICMPV6_PKT_TOOBIG message with an MTU less than 1280. To allow encapsulating of packets over a 1280 link we should always accept packets with a size of 1280 for forwarding even if the path has a lower MTU and fragment the encapsulated packets afterwards. In case a forwarded packet is not going to be encapsulated a ICMPV6_PKT_TOOBIG msg will still be send by ip6_fragment() with the correct MTU. Signed-off-by: Ulrich Weber <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-02-18ipv6: drop unused "dev" arg of icmpv6_send()Alexey Dobriyan1-6/+5
Dunno, what was the idea, it wasn't used for a long time. Signed-off-by: Alexey Dobriyan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-01-06ip: fix mc_loop checks for tunnels with multicast outer addressesOctavian Purdila1-2/+1
When we have L3 tunnels with different inner/outer families (i.e. IPV4/IPV6) which use a multicast address as the outer tunnel destination address, multicast packets will be loopbacked back to the sending socket even if IP*_MULTICAST_LOOP is set to disabled. The mc_loop flag is present in the family specific part of the socket (e.g. the IPv4 or IPv4 specific part). setsockopt sets the inner family mc_loop flag. When the packet is pushed through the L3 tunnel it will eventually be processed by the outer family which if different will check the flag in a different part of the socket then it was set. Signed-off-by: Octavian Purdila <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-09-02ip: Report qdisc packet dropsEric Dumazet1-1/+1
Christoph Lameter pointed out that packet drops at qdisc level where not accounted in SNMP counters. Only if application sets IP_RECVERR, drops are reported to user (-ENOBUFS errors) and SNMP counters updated. IP_RECVERR is used to enable extended reliable error message passing, but these are not needed to update system wide SNMP stats. This patch changes things a bit to allow SNMP counters to be updated, regardless of IP_RECVERR being set or not on the socket. Example after an UDP tx flood # netstat -s ... IP: 1487048 outgoing packets dropped ... Udp: ... SndbufErrors: 1487048 send() syscalls, do however still return an OK status, to not break applications. Note : send() manual page explicitly says for -ENOBUFS error : "The output queue for a network interface was full. This generally indicates that the interface has stopped sending, but may be caused by transient congestion. (Normally, this does not occur in Linux. Packets are just silently dropped when a device queue overflows.) " This is not true for IP_RECVERR enabled sockets : a send() syscall that hit a qdisc drop returns an ENOBUFS error. Many thanks to Christoph, David, and last but not least, Alexey ! Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-09-01ipv6: ip6_push_pending_frames() should increment IPSTATS_MIB_OUTDISCARDSEric Dumazet1-0/+1
qdisc drops should be notified to IP_RECVERR enabled sockets, as done in IPV4. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-08-13inet6: Conversion from u8 to intGerrit Renker1-10/+5
This replaces assignments of the type "int on LHS" = "u8 on RHS" with simpler code. The LHS can express all of the unsigned right hand side values, hence the assigned value can not be negative. Signed-off-by: Gerrit Renker <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-07-16Merge branch 'master' of ↵David S. Miller1-1/+0
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/orinoco/main.c
2009-07-12udpv6: Remove unused skb argument of ipv6_select_ident()Sridhar Samudrala1-15/+3
- move ipv6_select_ident() inline function to ipv6.h and remove the unused skb argument Signed-off-by: Sridhar Samudrala <[email protected]> Acked-by: Herbert Xu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-07-12udpv6: Fix gso_size setting in ip6_ufo_append_dataSridhar Samudrala1-3/+5
- fix gso_size setting for ipv6 fragment to be a multiple of 8 bytes. Signed-off-by: Sridhar Samudrala <[email protected]> Acked-by: Herbert Xu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-07-11net: ip_push_pending_frames() fixEric Dumazet1-1/+0
After commit 2b85a34e911bf483c27cfdd124aeb1605145dc80 (net: No more expensive sock_hold()/sock_put() on each tx) we do not take any more references on sk->sk_refcnt on outgoing packets. I forgot to delete two __sock_put() from ip_push_pending_frames() and ip6_push_pending_frames(). Reported-by: Emil S Tantilov <[email protected]> Signed-off-by: Eric Dumazet <[email protected]> Tested-by: Emil S Tantilov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-06-11net: No more expensive sock_hold()/sock_put() on each txEric Dumazet1-1/+0
One of the problem with sock memory accounting is it uses a pair of sock_hold()/sock_put() for each transmitted packet. This slows down bidirectional flows because the receive path also needs to take a refcount on socket and might use a different cpu than transmit path or transmit completion path. So these two atomic operations also trigger cache line bounces. We can see this in tx or tx/rx workloads (media gateways for example), where sock_wfree() can be in top five functions in profiles. We use this sock_hold()/sock_put() so that sock freeing is delayed until all tx packets are completed. As we also update sk_wmem_alloc, we could offset sk_wmem_alloc by one unit at init time, until sk_free() is called. Once sk_free() is called, we atomic_dec_and_test(sk_wmem_alloc) to decrement initial offset and atomicaly check if any packets are in flight. skb_set_owner_w() doesnt call sock_hold() anymore sock_wfree() doesnt call sock_put() anymore, but check if sk_wmem_alloc reached 0 to perform the final freeing. Drawback is that a skb->truesize error could lead to unfreeable sockets, or even worse, prematurely calling __sk_free() on a live socket. Nice speedups on SMP. tbench for example, going from 2691 MB/s to 2711 MB/s on my 8 cpu dev machine, even if tbench was not really hitting sk_refcnt contention point. 5 % speedup on a UDP transmit workload (depends on number of flows), lowering TX completion cpu usage. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-06-09ipv6: Use frag list abstraction interfaces.David S. Miller1-3/+3
Signed-off-by: David S. Miller <[email protected]>
2009-06-03net: skb->dst accessorsEric Dumazet1-30/+30
Define three accessors to get/set dst attached to a skb struct dst_entry *skb_dst(const struct sk_buff *skb) void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst) void skb_dst_drop(struct sk_buff *skb) This one should replace occurrences of : dst_release(skb->dst) skb->dst = NULL; Delete skb->dst field Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-04-27snmp: add missing counters for RFC 4293Neil Horman1-4/+5
The IP MIB (RFC 4293) defines stats for InOctets, OutOctets, InMcastOctets and OutMcastOctets: http://tools.ietf.org/html/rfc4293 But it seems we don't track those in any way that easy to separate from other protocols. This patch adds those missing counters to the stats file. Tested successfully by me With help from Eric Dumazet. Signed-off-by: Neil Horman <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-02-05ipv6: Copy cork options in ip6_append_dataHerbert Xu1-15/+52
As the options passed to ip6_append_data may be ephemeral, we need to duplicate it for corking. This patch applies the simplest fix which is to memdup all the relevant bits. Signed-off-by: Herbert Xu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-12-10netns: ip6mr: allocate mroute6_socket per-namespace.Benjamin Thery1-1/+2
Preliminary work to make IPv6 multicast forwarding netns-aware. Make IPv6 multicast forwarding mroute6_socket per-namespace, moves it into struct netns_ipv6. At the moment, mroute6_socket is only referenced in init_net. Signed-off-by: Benjamin Thery <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-10-28net: reduce structures when XFRM=nAlexey Dobriyan1-1/+1
ifdef out * struct sk_buff::sp (pointer) * struct dst_entry::xfrm (pointer) * struct sock::sk_policy (2 pointers) Signed-off-by: Alexey Dobriyan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-10-08ipv6: added net argument to ICMP6MSGOUT_INC_STATS_BHDenis V. Lunev1-1/+1
Signed-off-by: Denis V. Lunev <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-10-08ipv6: added net argument to ICMP6_INC_STATS_BHDenis V. Lunev1-1/+1
Signed-off-by: Denis V. Lunev <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-10-08ipv6: added net argument to IP6_INC_STATS_BHDenis V. Lunev1-7/+11
Signed-off-by: Denis V. Lunev <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-10-08netns: add net parameter to IP6_INC_STATSDenis V. Lunev1-22/+34
Signed-off-by: Denis V. Lunev <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-10-08ipv6: local dev is actually unused in ip6_fragmentDenis V. Lunev1-2/+0
Signed-off-by: Denis V. Lunev <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-09-09ipv6: Fix OOPS in ip6_dst_lookup_tail().Neil Horman1-32/+32
This fixes kernel bugzilla 11469: "TUN with 1024 neighbours: ip6_dst_lookup_tail NULL crash" dst->neighbour is not necessarily hooked up at this point in the processing path, so blindly dereferencing it is the wrong thing to do. This NULL check exists in other similar paths and this case was just an oversight. Also fix the completely wrong and confusing indentation here while we're at it. Based upon a patch by Evgeniy Polyakov. Signed-off-by: Neil Horman <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-08-14netns: Add network namespace argument to rt6_fill_node() and ↵Brian Haley1-1/+1
ipv6_dev_get_saddr() ipv6_dev_get_saddr() blindly de-references dst_dev to get the network namespace, but some callers might pass NULL. Change callers to pass a namespace pointer instead. Signed-off-by: Brian Haley <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-08-03ipv6: Do not drop packet if skb->local_df is set to trueWei Yongjun1-1/+1
The old code will drop IPv6 packet if ipfragok is not set, since ipfragok is obsoleted, will be instead by used skb->local_df, so this check must be changed to skb->local_df. This patch fix this problem and not drop packet if skb->local_df is set to true. Signed-off-by: Wei Yongjun <[email protected]> Acked-by: Herbert Xu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-07-31ipv6: Fix ip6_xmit to send fragments if ipfragok is trueWei Yongjun1-0/+4
SCTP used ip6_xmit() to send fragments after received ICMP packet too big message. But while send packet used ip6_xmit, the skb->local_df is not initialized. So when skb if enter ip6_fragment(), the following code will discard the skb. ip6_fragment(...) { if (!skb->local_df) { ... return -EMSGSIZE; } ... } SCTP do the following step: 1. send packet ip6_xmit(skb, ipfragok=0) 2. received ICMP packet too big message 3. if PMTUD_ENABLE: ip6_xmit(skb, ipfragok=1) This patch fixed the problem by set local_df if ipfragok is true. Signed-off-by: Wei Yongjun <[email protected]> Acked-by: Herbert Xu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-07-25net: convert BUG_TRAP to generic WARN_ONIlpo Järvinen1-1/+1
Removes legacy reinvent-the-wheel type thing. The generic machinery integrates much better to automated debugging aids such as kerneloops.org (and others), and is unambiguous due to better naming. Non-intuively BUG_TRAP() is actually equal to WARN_ON() rather than BUG_ON() though some might actually be promoted to BUG_ON() but I left that to future. I could make at least one BUILD_BUG_ON conversion. Signed-off-by: Ilpo Järvinen <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-07-19ipv6 netns: Make several "global" sysctl variables namespace aware.YOSHIFUJI Hideaki1-2/+2
Signed-off-by: YOSHIFUJI Hideaki <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-07-03ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface.YOSHIFUJI Hideaki1-0/+7
Signed-off-by: YOSHIFUJI Hideaki <[email protected]>
2008-07-03ipv6: Do not forward packets with the unspecified source address.YOSHIFUJI Hideaki1-1/+2
RFC4291 2.5.2. Signed-off-by: YOSHIFUJI Hideaki <[email protected]>
2008-06-19net: Discard and warn about LRO'd skbs received for forwardingBen Hutchings1-0/+3
Add skb_warn_if_lro() to test whether an skb was received with LRO and warn if so. Change br_forward(), ip_forward() and ip6_forward() to call it) and discard the skb if it returns true. Signed-off-by: Ben Hutchings <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-06-11net: remove CVS keywordsAdrian Bunk1-2/+0
This patch removes CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2008-05-12net: Allow netdevices to specify needed head/tailroomJohannes Berg1-1/+1
This patch adds needed_headroom/needed_tailroom members to struct net_device and updates many places that allocate sbks to use them. Not all of them can be converted though, and I'm sure I missed some (I mostly grepped for LL_RESERVED_SPACE) Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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