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path: root/net/ipv6/af_inet6.c
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2009-11-05net: check kern before calling security subsystemEric Paris
Before calling capable(CAP_NET_RAW) check if this operations is on behalf of the kernel or on behalf of userspace. Do not do the security check if it is on behalf of the kernel. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05net: pass kern to net_proto_family create functionEric Paris
The generic __sock_create function has a kern argument which allows the security system to make decisions based on if a socket is being created by the kernel or by userspace. This patch passes that flag to the net_proto_family specific create function, so it can do the same thing. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05net: drop capability from protocol definitionsEric Paris
struct can_proto had a capability field which wasn't ever used. It is dropped entirely. struct inet_protosw had a capability field which can be more clearly expressed in the code by just checking if sock->type = SOCK_RAW. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02ipv6: no more dev_put() in inet6_bind()Eric Dumazet
Avoids touching device refcount in inet6_bind(), thanks to RCU Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-18inet: rename some inet_sock fieldsEric Dumazet
In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-07net: mark net_proto_ops as constStephen Hemminger
All usages of structure net_proto_ops should be declared const. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-07Use sk_mark for IPv6 routing lookupsBrian Haley
Atis Elsts wrote: > Not sure if there is need to fill the mark from skb in tunnel xmit functions. In any case, it's not done for GRE or IPIP tunnels at the moment. Ok, I'll just drop that part, I'm not sure what should be done in this case. > Also, in this patch you are doing that for SIT (v6-in-v4) tunnels only, and not doing it for v4-in-v6 or v6-in-v6 tunnels. Any reason for that? I just sent that patch out too quickly, here's a better one with the updates. Add support for IPv6 route lookups using sk_mark. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-14net: constify struct inet6_protocolAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/yellowfin.c
2009-08-23ipv6: Fix commit 63d9950b08184e6531adceb65f64b429909cc101 (ipv6: Make ↵Bruno Prémont
v4-mapped bindings consistent with IPv4) Commit 63d9950b08184e6531adceb65f64b429909cc101 (ipv6: Make v4-mapped bindings consistent with IPv4) changes behavior of inet6_bind() for v4-mapped addresses so it should behave the same way as inet_bind(). During this change setting of err to -EADDRNOTAVAIL got lost: af_inet.c:469 inet_bind() err = -EADDRNOTAVAIL; if (!sysctl_ip_nonlocal_bind && !(inet->freebind || inet->transparent) && addr->sin_addr.s_addr != htonl(INADDR_ANY) && chk_addr_ret != RTN_LOCAL && chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST) goto out; af_inet6.c:463 inet6_bind() if (addr_type == IPV6_ADDR_MAPPED) { int chk_addr_ret; /* Binding to v4-mapped address on a v6-only socket * makes no sense */ if (np->ipv6only) { err = -EINVAL; goto out; } /* Reproduce AF_INET checks to make the bindings consitant */ v4addr = addr->sin6_addr.s6_addr32[3]; chk_addr_ret = inet_addr_type(net, v4addr); if (!sysctl_ip_nonlocal_bind && !(inet->freebind || inet->transparent) && v4addr != htonl(INADDR_ANY) && chk_addr_ret != RTN_LOCAL && chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST) goto out; } else { Signed-off-by Bruno Prémont <bonbons@linux-vserver.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-12udpv6: Handle large incoming UDP/IPv6 packets and support software UFOSridhar Samudrala
- validate and forward GSO UDP/IPv6 packets from untrusted sources. - do software UFO if the outgoing device doesn't support UFO. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-26ipv6: Use rcu_barrier() on module unload.Jesper Dangaard Brouer
The ipv6 module uses rcu_call() thus it should use rcu_barrier() on module unload. Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01IPv6: Add 'autoconf' and 'disable_ipv6' module parametersBrian Haley
Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27gro: Avoid unnecessary comparison after skb_gro_headerHerbert Xu
For the overwhelming majority of cases, skb_gro_header's return value cannot be NULL. Yet we must check it because of its current form. This patch splits it up into multiple functions in order to avoid this. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-24ipv6: Make v4-mapped bindings consistent with IPv4Vlad Yasevich
Binding to a v4-mapped address on an AF_INET6 socket should produce the same result as binding to an IPv4 address on AF_INET socket. The two are interchangable as v4-mapped address is really a portability aid. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-24ipv6: Allow ipv4 wildcard binds after ipv6 address bindsVlad Yasevich
The IPv4 wildcard (0.0.0.0) address does not intersect in any way with explicit IPv6 addresses. These two should be permitted, but the IPv4 conflict code checks the ipv6only bit as part of the test. Since binding to an explicit IPv6 address restricts the socket to only that IPv6 address, the side-effect is that the socket behaves as v6-only. By explicitely setting ipv6only in this case, allows the 2 binds to succeed. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-24ipv6: Disallow binding to v4-mapped address on v6-only socket.Vlad Yasevich
A socket marked v6-only, can not receive or send traffic to v4-mapped addresses. Thus allowing binding to v4-mapped address on such a socket makes no sense. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-17Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/igb/igb_main.c drivers/net/qlge/qlge_main.c drivers/net/wireless/ath9k/ath9k.h drivers/net/wireless/ath9k/core.h drivers/net/wireless/ath9k/hw.c
2009-03-11ipv6: Fix BUG when disabled ipv6 module is unloadedJohn Dykstra
Do not try to "uninitialize" ipv6 if its initialization had been skipped because module parameter disable=1 had been specified. Reported-by: Thomas Backlund <tmb@mandriva.org> Signed-off-by: John Dykstra <john.dykstra1@gmail.com> Acked-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-10net: convert usage of packet_type to read_mostlyStephen Hemminger
Protocols that use packet_type can be __read_mostly section for better locality. Elminate any unnecessary initializations of NULL. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-05Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/tokenring/tmspci.c drivers/net/ucc_geth_mii.c
2009-03-04IPv6: add "disable" module parameter support to ipv6.koBrian Haley
Add "disable" module parameter support to ipv6.ko by specifying "disable=1" on module load. We just do the minimum of initializing inetsw6[] so calls from other modules to inet6_register_protosw() won't OOPs, then bail out. No IPv6 addresses or sockets can be created as a result, and a reboot is required to enable IPv6. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01net: replace uses of __constant_{endian}Harvey Harrison
Base versions handle constant folding now. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-29gro: Avoid copying headers of unmerged packetsHerbert Xu
Unfortunately simplicity isn't always the best. The fraginfo interface turned out to be suboptimal. The problem was quite obvious. For every packet, we have to copy the headers from the frags structure into skb->head, even though for 99% of the packets this part is immediately thrown away after the merge. LRO didn't have this problem because it directly read the headers from the frags structure. This patch attempts to address this by creating an interface that allows GRO to access the headers in the first frag without having to copy it. Because all drivers that use frags place the headers in the first frag this optimisation should be enough. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-20gro: Fix handling of complete checksums in IPv6Herbert Xu
We need to perform skb_postpull_rcsum after pulling the IPv6 header in order to maintain the correctness of the complete checksum. This patch also adds a missing iph reload after pulling. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-08ipv6: Add GRO supportHerbert Xu
This patch adds GRO support for IPv6. IPv6 GRO supports extension headers in the same way as GSO (by using the same infrastructure). It's also simpler compared to IPv4 since we no longer have to worry about fragmentation attributes or header checksums. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-25netns xfrm: lookup in netnsAlexey Dobriyan
Pass netns to xfrm_lookup()/__xfrm_lookup(). For that pass netns to flow_cache_lookup() and resolver callback. Take it from socket or netdevice. Stub DECnet to init_net. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-13netns: mib6 section fixletAlexey Dobriyan
LD net/ipv6/ipv6.o WARNING: net/ipv6/ipv6.o(.text+0xd8): Section mismatch in reference from the function inet6_net_init() to the function .init.text:ipv6_init_mibs() Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08ipv6: remove unused not init_ipv6_mibs/cleanup_ipv6_mibsDenis V. Lunev
Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08ipv6: making ip and icmp statistics per/namespaceDenis V. Lunev
Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-07netns: make uplitev6 mib per/namespaceDenis V. Lunev
Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-07netns: make udpv6 mib per/namespaceDenis V. Lunev
Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-07netns: add stub functions for per/namespace mibs allocationDenis V. Lunev
The content of init_ipv6_mibs/cleanup_ipv6_mibs will be moved to new calls one by one next. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-07ipv6: initialize ip6_route sysctl vars in ip6_route_net_init()Peter Zijlstra
This makes that ip6_route_net_init() does all of the route init code. There used to be a race between ip6_route_net_init() and ip6_net_init() and someone relying on the combined result was left out cold. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-01ipv4: Make inet_sock.h independent of route.hKOVACS Krisztian
inet_iif() in inet_sock.h requires route.h. Since users of inet_iif() usually require other route.h functionality anyway this patch moves inet_iif() to route.h. Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-27missing bits of net-namespace / sysctlAl Viro
Piss-poor sysctl registration API strikes again, film at 11... What we really need is _pathname_ required to be present in already registered table, so that kernel could warn about bad order. That's the next target for sysctl stuff (and generally saner and more explicit order of initialization of ipv[46] internals wouldn't hurt either). For the time being, here are full fixups required by ..._rotable() stuff; we make per-net sysctl sets descendents of "ro" one and make sure that sufficient skeleton is there before we start registering per-net sysctls. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: netns: fix ip_rt_frag_needed rt_is_expired netfilter: nf_conntrack_extend: avoid unnecessary "ct->ext" dereferences netfilter: fix double-free and use-after free netfilter: arptables in netns for real netfilter: ip{,6}tables_security: fix future section mismatch selinux: use nf_register_hooks() netfilter: ebtables: use nf_register_hooks() Revert "pkt_sched: sch_sfq: dump a real number of flows" qeth: use dev->ml_priv instead of dev->priv syncookies: Make sure ECN is disabled net: drop unused BUG_TRAP() net: convert BUG_TRAP to generic WARN_ON drivers/net: convert BUG_TRAP to generic WARN_ON
2008-07-25net: convert BUG_TRAP to generic WARN_ONIlpo Järvinen
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 <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-25list_for_each_rcu must die: networkingPaul E. McKenney
All uses of list_for_each_rcu() can be profitably replaced by the easier-to-use list_for_each_entry_rcu(). This patch makes this change for networking, in preparation for removing the list_for_each_rcu() API entirely. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-03ipv4,ipv6 mroute: Add some helper inline functions to remove ugly ifdefs.YOSHIFUJI Hideaki
ip{,v6}_mroute_{set,get}sockopt() should not matter by optimization but it would be better not to depend on optimization semantically. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-07-03ipv6: Do cleanup for ip6_mr_init.Wang Chen
If do not do it, we will get following issues: 1. Leaving junks after inet6_init failing halfway. 2. Leaving proc and notifier junks after ipv6 modules unloading. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-14net: change proto destroy method to return voidBrian Haley
Change struct proto destroy function pointer to return void. Noticed by Al Viro. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-11net: remove CVS keywordsAdrian Bunk
This patch removes CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-09ipv6 netns: init net is used to set bindv6only for new sockPavel Emelyanov
The bindv6only is tuned via sysctl. It is already on a struct net and per-net sysctls allow for its modification (ipv6_sysctl_net_init). Despite this the value configured in the init net is used for the rest of them. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-05[IPV6] MROUTE: Support multicast forwarding.YOSHIFUJI Hideaki
Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26[NETNS][IPV6] anycast - handle several network namespaceDaniel Lezcano
Make use of the network namespace information to have this protocol to handle several network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS.YOSHIFUJI Hideaki
Introduce per-sock inlines: sock_net(), sock_net_set() and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-21[NETNS][IPV6] tcp6 - make proc per namespaceDaniel Lezcano
Make the proc for tcp6 to be per namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-21[NETNS][IPV6] udp6 - make proc per namespaceDaniel Lezcano
The proc init/exit functions take a new network namespace parameter in order to register/unregister /proc/net/udp6 for a namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-06[UDP]: Revert udplite and code split.David S. Miller
This reverts commit db1ed684f6c430c4cdad67d058688b8a1b5e607c ("[IPV6] UDP: Rename IPv6 UDP files."), commit 8be8af8fa4405652e6c0797db5465a4be8afb998 ("[IPV4] UDP: Move IPv4-specific bits to other file.") and commit e898d4db2749c6052072e9bc4448e396cbdeb06a ("[UDP]: Allow users to configure UDP-Lite."). First, udplite is of such small cost, and it is a core protocol just like TCP and normal UDP are. We spent enormous amounts of effort to make udplite share as much code with core UDP as possible. All of that work is less valuable if we're just going to slap a config option on udplite support. It is also causing build failures, as reported on linux-next, showing that the changeset was not tested very well. In fact, this is the second build failure resulting from the udplite change. Finally, the config options provided was a bool, instead of a modular option. Meaning the udplite code does not even get build tested by allmodconfig builds, and furthermore the user is not presented with a reasonable modular build option which is particularly needed by distribution vendors. Signed-off-by: David S. Miller <davem@davemloft.net>