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* Merge branch 'delete-tokenring' of ↵David S. Miller2012-05-16
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
| * net: delete all instances of special processing for token ringPaul Gortmaker2012-05-15
| | | | | | | | | | | | | | | | | | | | | | | | | | We are going to delete the Token ring support. This removes any special processing in the core networking for token ring, (aside from net/tr.c itself), leaving the drivers and remaining tokenring support present but inert. The mass removal of the drivers and net/tr.c will be in a separate commit, so that the history of these files that we still care about won't have the giant deletion tied into their history. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* | net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debugJoe Perches2012-05-16
| | | | | | | | | | | | | | Use the current debugging style and enable dynamic_debug. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: ipv6: Standardize prefixes for message loggingJoe Perches2012-05-16
|/ | | | | | | | | | | | | | | | Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Convert net_ratelimit uses to net_<level>_ratelimitedJoe Perches2012-05-15
| | | | | | | | | | Standardize the net core ratelimited logging functions. Coalesce formats, align arguments. Change a printk then vprintk sequence to use printf extension %pV. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* xfrm: make xfrm_algo.c a moduleJan Beulich2012-05-15
| | | | | | | | | By making this a standalone config option (auto-selected as needed), selecting CRYPTO from here rather than from XFRM (which is boolean) allows the core crypto code to become a module again even when XFRM=y. Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/ipv6/af_inet6.c: checkpatch cleanupEldad Zack2012-05-11
| | | | | | | | | | | | | | | | | | | | | | | | af_inet6.c:80: ERROR: do not initialise statics to 0 or NULL af_inet6.c:259: ERROR: spaces required around that '=' (ctx:VxV) af_inet6.c:394: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable af_inet6.c:412: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable af_inet6.c:422: ERROR: do not use assignment in if condition af_inet6.c:425: ERROR: do not use assignment in if condition af_inet6.c:433: ERROR: do not use assignment in if condition af_inet6.c:437: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable af_inet6.c:446: ERROR: spaces required around that '=' (ctx:VxV) af_inet6.c:478: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable af_inet6.c:485: ERROR: that open brace { should be on the previous line af_inet6.c:485: ERROR: space required before the open parenthesis '(' af_inet6.c:513: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable af_inet6.c:629: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable af_inet6.c:647: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable af_inet6.c:687: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable af_inet6.c:709: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable af_inet6.c:1073: ERROR: space required before the open parenthesis '(' Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: IPv6 link local addressalex.bluesman.smirnov@gmail.com2012-05-10
| | | | | | | | | | | | | | | | | | | | According to the RFC4944 (Transmission of IPv6 Packets over IEEE 802.15.4 Networks), chapter 7: The IPv6 link-local address [RFC4291] for an IEEE 802.15.4 interface is formed by appending the Interface Identifier, as defined above, to the prefix FE80::/64. 10 bits 54 bits 64 bits +----------+-----------------------+----------------------------+ |1111111010| (zeros) | Interface Identifier | +----------+-----------------------+----------------------------+ This patch adds IPv6 address generation support for the 6lowpan interfaces. Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: ip6_tables: add flags parameter to ipv6_find_hdr()Hans Schillstrom2012-05-09
| | | | | | | | | | | | | | | This patch adds the flags parameter to ipv6_find_hdr. This flags allows us to: * know if this is a fragment. * stop at the AH header, so the information contained in that header can be used for some specific packet handling. This patch also adds the offset parameter for inspection of one inner IPv6 header that is contained in error messages. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* netfilter: remove ip_queue supportPablo Neira Ayuso2012-05-08
| | | | | | | | | | | | | | | This patch removes ip_queue support which was marked as obsolete years ago. The nfnetlink_queue modules provides more advanced user-space packet queueing mechanism. This patch also removes capability code included in SELinux that refers to ip_queue. Otherwise, we break compilation. Several warning has been sent regarding this to the mailing list in the past month without anyone rising the hand to stop this with some strong argument. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tcp: be more strict before accepting ECN negociationEric Dumazet2012-05-04
| | | | | | | | | | | | | | | | | | | | | | It appears some networks play bad games with the two bits reserved for ECN. This can trigger false congestion notifications and very slow transferts. Since RFC 3168 (6.1.1) forbids SYN packets to carry CT bits, we can disable TCP ECN negociation if it happens we receive mangled CT bits in the SYN packet. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Perry Lorier <perryl@google.com> Cc: Matt Mathis <mattmathis@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Wilmer van der Gaast <wilmer@google.com> Cc: Ankur Jain <jankur@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Dave Täht <dave.taht@bufferbloat.net> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Export ipv6 functions for use by other protocolsChris Elston2012-05-01
| | | | | | | | | | For implementing other protocols on top of IPv6, such as L2TPv3's IP encapsulation over ipv6, we'd like to call some IPv6 functions which are not currently exported. This patch exports them. Signed-off-by: Chris Elston <celston@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/ipv6/udp: UDP encapsulation: introduce encap_rcv hook into IPv6Benjamin LaHaise2012-04-28
| | | | | | | | Now that the sematics of udpv6_queue_rcv_skb() match IPv4's udp_queue_rcv_skb(), introduce the UDP encap_rcv() hook for IPv6. Signed-off-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/ipv6/udp: UDP encapsulation: move socket locking into udpv6_queue_rcv_skb()Benjamin LaHaise2012-04-28
| | | | | | | | | In order to make sure that when the encap_rcv() hook is introduced it is not called with the socket lock held, move socket locking from callers into udpv6_queue_rcv_skb(), matching what happens in IPv4. Signed-off-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/ipv6/udp: UDP encapsulation: break backlog_rcv into __udpv6_queue_rcv_skbBenjamin LaHaise2012-04-28
| | | | | | | | | | This is the first step in reworking the IPv6 UDP code to be structured more like the IPv4 UDP code. This patch creates __udpv6_queue_rcv_skb() with the equivalent sematics to __udp_queue_rcv_skb(), and wires it up to the backlog_rcv method. Signed-off-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: RTAX_FEATURE_ALLFRAG causes inefficient TCP segment sizingEric Dumazet2012-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Quoting Tore Anderson from : https://bugzilla.kernel.org/show_bug.cgi?id=42572 When RTAX_FEATURE_ALLFRAG is set on a route, the effective TCP segment size does not take into account the size of the IPv6 Fragmentation header that needs to be included in outbound packets, causing every transmitted TCP segment to be fragmented across two IPv6 packets, the latter of which will only contain 8 bytes of actual payload. RTAX_FEATURE_ALLFRAG is typically set on a route in response to receving a ICMPv6 Packet Too Big message indicating a Path MTU of less than 1280 bytes. 1280 bytes is the minimum IPv6 MTU, however ICMPv6 PTBs with MTU < 1280 are still valid, in particular when an IPv6 packet is sent to an IPv4 destination through a stateless translator. Any ICMPv4 Need To Fragment packets originated from the IPv4 part of the path will be translated to ICMPv6 PTB which may then indicate an MTU of less than 1280. The Linux kernel refuses to reduce the effective MTU to anything below 1280 bytes, instead it sets it to exactly 1280 bytes, and RTAX_FEATURE_ALLFRAG is also set. However, the TCP segment size appears to be set to 1240 bytes (1280 Path MTU - 40 bytes of IPv6 header), instead of 1232 (additionally taking into account the 8 bytes required by the IPv6 Fragmentation extension header). This in turn results in rather inefficient transmission, as every transmitted TCP segment now is split in two fragments containing 1232+8 bytes of payload. After this patch, all the outgoing packets that includes a Fragmentation header all are "atomic" or "non-fragmented" fragments, i.e., they both have Offset=0 and More Fragments=0. With help from David S. Miller Reported-by: Tore Anderson <tore@fud.no> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Maciej Żenczykowski <maze@google.com> Cc: Tom Herbert <therbert@google.com> Tested-by: Tore Anderson <tore@fud.no> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: call consume_skb() in frag/reassemblyEric Dumazet2012-04-25
| | | | | | | | Some kfree_skb() calls should be replaced by consume_skb() to avoid drop_monitor/dropwatch false positives. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2012-04-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | Fix merge between commit 3adadc08cc1e ("net ax25: Reorder ax25_exit to remove races") and commit 0ca7a4c87d27 ("net ax25: Simplify and cleanup the ax25 sysctl handling") The former moved around the sysctl register/unregister calls, the later simply removed them. With help from Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net>
| * tcp: fix TCP_MAXSEG for established IPv6 passive socketsNeal Cardwell2012-04-22
| | | | | | | | | | | | | | | | | | | | | | | | | | Commit f5fff5d forgot to fix TCP_MAXSEG behavior IPv6 sockets, so IPv6 TCP server sockets that used TCP_MAXSEG would find that the advmss of child sockets would be incorrect. This commit mirrors the advmss logic from tcp_v4_syn_recv_sock in tcp_v6_syn_recv_sock. Eventually this logic should probably be shared between IPv4 and IPv6, but this at least fixes this issue. Signed-off-by: Neal Cardwell <ncardwell@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | tcp: sk_add_backlog() is too agressive for TCPEric Dumazet2012-04-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While investigating TCP performance problems on 10Gb+ links, we found a tcp sender was dropping lot of incoming ACKS because of sk_rcvbuf limit in sk_add_backlog(), especially if receiver doesnt use GRO/LRO and sends one ACK every two MSS segments. A sender usually tweaks sk_sndbuf, but sk_rcvbuf stays at its default value (87380), allowing a too small backlog. A TCP ACK, even being small, can consume nearly same truesize space than outgoing packets. Using sk_rcvbuf + sk_sndbuf as a limit makes sense and is fast to compute. Performance results on netperf, single flow, receiver with disabled GRO/LRO : 7500 Mbits instead of 6050 Mbits, no more TCPBacklogDrop increments at sender. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Maciej Żenczykowski <maze@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: add a limit parameter to sk_add_backlog()Eric Dumazet2012-04-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sk_add_backlog() & sk_rcvqueues_full() hard coded sk_rcvbuf as the memory limit. We need to make this limit a parameter for TCP use. No functional change expected in this patch, all callers still using the old sk_rcvbuf limit. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Maciej Żenczykowski <maze@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | tcp: Fix build warning after tcp_{v4,v6}_init_sock consolidation.David S. Miller2012-04-23
| | | | | | | | | | | | | | | | | | | | net/ipv4/tcp_ipv4.c: In function 'tcp_v4_init_sock': net/ipv4/tcp_ipv4.c:1891:19: warning: unused variable 'tp' [-Wunused-variable] net/ipv6/tcp_ipv6.c: In function 'tcp_v6_init_sock': net/ipv6/tcp_ipv6.c:1836:19: warning: unused variable 'tp' [-Wunused-variable] Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | tcp: move duplicate code from tcp_v4_init_sock()/tcp_v6_init_sock()Neal Cardwell2012-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit moves the (substantial) common code shared between tcp_v4_init_sock() and tcp_v6_init_sock() to a new address-family independent function, tcp_init_sock(). Centralizing this functionality should help avoid drift issues, e.g. where the IPv4 side is updated without a corresponding update to IPv6. There was already some drift: IPv4 initialized snd_cwnd to TCP_INIT_CWND, while the IPv6 side was still initializing snd_cwnd to 2 (in this case it should not matter, since snd_cwnd is also initialized in tcp_init_metrics(), but the general risks and maintenance overhead remain). When diffing the old and new code, note that new tcp_init_sock() function uses the order of steps from the tcp_v4_init_sock() implementation (the order is slightly different in tcp_v6_init_sock()). Signed-off-by: Neal Cardwell <ncardwell@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sock: Introduce named constants for sk_reusePavel Emelyanov2012-04-21
| | | | | | | | | | | | | | | | | | Name them in a "backward compatible" manner, i.e. reuse or not are still 1 and 0 respectively. The reuse value of 2 means that the socket with it will forcibly reuse everyone else's port. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Delete all remaining instances of ctl_pathEric W. Biederman2012-04-20
| | | | | | | | | | | | | | | | We don't use struct ctl_path anymore so delete the exported constants. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Convert all sysctl registrations to register_net_sysctlEric W. Biederman2012-04-20
| | | | | | | | | | | | | | | | | | | | | | | | This results in code with less boiler plate that is a bit easier to read. Additionally stops us from using compatibility code in the sysctl core, hastening the day when the compatibility code can be removed. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net ipv6: Convert addrconf to use register_net_sysctlEric W. Biederman2012-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | Using an ascii path to register_net_sysctl as opposed to the slightly awkward ctl_path allows for much simpler code. We no longer need to malloc dev_name to keep it alive the length of our sysctl register instead we can use a small temporary buffer on the stack. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net ipv6: Don't use sysctl tables with .child entries.Eric W. Biederman2012-04-20
| | | | | | | | | | | | | | | | | | | | | | The sysctl core no longer natively understands sysctl tables with .child entries. Split the ipv6_table to remove the .child entries. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net ipv6: Remove unneded registration of an empty net/ipv6/neighEric W. Biederman2012-04-20
| | | | | | | | | | | | | | | | | | | | sysctl no longer requires explicit creation of directories. The neigh directory is always populated with at least a default entry so this should cause no user visible changes. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Move all of the network sysctls without a namespace into init_net.Eric W. Biederman2012-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes it clearer which sysctls are relative to your current network namespace. This makes it a little less error prone by not exposing sysctls for the initial network namespace in other namespaces. This is the same way we handle all of our other network interfaces to userspace and I can't honestly remember why we didn't do this for sysctls right from the start. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Kill register_sysctl_rotableEric W. Biederman2012-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | register_sysctl_rotable never caught on as an interesting way to register sysctls. My take on the situation is that what we want are sysctls that we can only see in the initial network namespace. What we have implemented with register_sysctl_rotable are sysctls that we can see in all of the network namespaces and can only change in the initial network namespace. That is a very silly way to go. Just register the network sysctls in the initial network namespace and we don't have any weird special cases to deal with. The sysctls affected are: /proc/sys/net/ipv4/ipfrag_secret_interval /proc/sys/net/ipv4/ipfrag_max_dist /proc/sys/net/ipv6/ip6frag_secret_interval /proc/sys/net/ipv6/mld_max_msf I really don't expect anyone will miss them if they can't read them in a child user namespace. CC: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipv6: tcp: dont drop packet but consume itEric Dumazet2012-04-19
| | | | | | | | | | | | | | | | When we need to clone skb, we dont drop a packet. Call consume_skb() to not confuse dropwatch. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ip6_tunnel: dont drop packet but consume itEric Dumazet2012-04-19
| | | | | | | | | | | | | | | | When we need to reallocate skb, we dont drop a packet. Call consume_skb() to not confuse dropwatch. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2012-04-15
|\| | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/ethernet/atheros/atlx/atl1.c drivers/net/ethernet/atheros/atlx/atl1.h Resolved a conflict between a DMA error bug fix and NAPI support changes in the atl1 driver. Signed-off-by: David S. Miller <davem@davemloft.net>
| * ipv6: fix problem with expired dst cacheGao feng2012-04-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the ipv6 dst cache which copy from the dst generated by ICMPV6 RA packet. this dst cache will not check expire because it has no RTF_EXPIRES flag. So this dst cache will always be used until the dst gc run. Change the struct dst_entry,add a union contains new pointer from and expires. When rt6_info.rt6i_flags has no RTF_EXPIRES flag,the dst.expires has no use. we can use this field to point to where the dst cache copy from. The dst.from is only used in IPV6. rt6_check_expired check if rt6_info.dst.from is expired. ip6_rt_copy only set dst.from when the ort has flag RTF_ADDRCONF and RTF_DEFAULT.then hold the ort. ip6_dst_destroy release the ort. Add some functions to operate the RTF_EXPIRES flag and expires(from) together. and change the code to use these new adding functions. Changes from v5: modify ip6_route_add and ndisc_router_discovery to use new adding functions. Only set dst.from when the ort has flag RTF_ADDRCONF and RTF_DEFAULT.then hold the ort. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: cleanup unsigned to unsigned intEric Dumazet2012-04-15
| | | | | | | | | | | | | | Use of "unsigned int" is preferred to bare "unsigned" in net tree. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipv6: Remove unused argument to addrconf_dad_start().David S. Miller2012-04-14
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | tcp: bind() use stronger condition for bind_conflictAlex Copot2012-04-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We must try harder to get unique (addr, port) pairs when doing port autoselection for sockets with SO_REUSEADDR option set. We achieve this by adding a relaxation parameter to inet_csk_bind_conflict. When 'relax' parameter is off we return a conflict whenever the current searched pair (addr, port) is not unique. This tries to address the problems reported in patch: 8d238b25b1ec22a73b1c2206f111df2faaff8285 Revert "tcp: bind() fix when many ports are bound" Tests where ran for creating and binding(0) many sockets on 100 IPs. The results are, on average: * 60000 sockets, 600 ports / IP: * 0.210 s, 620 (IP, port) duplicates without patch * 0.219 s, no duplicates with patch * 100000 sockets, 1000 ports / IP: * 0.371 s, 1720 duplicates without patch * 0.373 s, no duplicates with patch * 200000 sockets, 2000 ports / IP: * 0.766 s, 6900 duplicates without patch * 0.768 s, no duplicates with patch * 500000 sockets, 5000 ports / IP: * 2.227 s, 41500 duplicates without patch * 2.284 s, no duplicates with patch Signed-off-by: Alex Copot <alex.mihai.c@gmail.com> Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | tunnel: implement 64 bits statisticsstephen hemminger2012-04-14
| | | | | | | | | | | | | | | | Convert the per-cpu statistics kept for GRE, IPIP, and SIT tunnels to use 64 bit statistics. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2012-04-12
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| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2012-04-12
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Fix bluetooth userland regression reported by Keith Packard, from Gustavo Padovan. 2) Revert ath9k PS idle change, from Sujith Manoharan. 3) Correct default TCP memory limits (again), from Eric Dumazet. 4) Fix tcp_rcv_rtt_update() accidental use of unscaled RTT, from Neal Cardwell. 5) We made a facility for layers like wireless to say how much tailroom they need in the SKB for link layer stuff such as wireless encryption etc., but TCP works hard to fill every SKB out to the end defeating this specification. This leads to every TCP packet getting reallocated by the wireless code in order to have the right amount of tailroom available. Fix TCP to only fill SKBs out to the real amount of data area it asked for during the allocation, this way it won't eat into the slack added for the device's tailroom needs. Reported by Marc Merlin and fixed by Eric Dumazet. 6) Leaks, endian bugs, and new device IDs in bluetooth from Santosh Nayak, João Paulo Rechi Vita, Cho, Yu-Chen, Andrei Emeltchenko, AceLan Kao, and Andrei Emeltchenko. 7) OOPS on tty_close fix in bluetooth's hci_ldisc from Johan Hovold. 8) netfilter erroneously scales TCP window twice, fix from Changli Gao. 9) Memleak fix in wext-core from Julia Lawall. 10) Consistently handle invalid TCP packets in ipv4 vs. ipv6 conntrack, from Jozsef Kadlecsik. 11) Validate IP header length properly in netfilter conntrack's ipv4_get_l4proto(). * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (39 commits) NFC: Fix the LLCP Tx fragmentation loop rtlwifi: Add missing DMA buffer unmapping for PCI drivers rtlwifi: Preallocate USB read buffers and eliminate kalloc in read routine tcp: avoid order-1 allocations on wifi and tx path net: allow pskb_expand_head() to get maximum tailroom bridge: Do not send queries on multicast group leaves MAINTAINERS: Mark NATSEMI driver as orphan'd. tcp: fix tcp_rcv_rtt_update() use of an unscaled RTT sample tcp: restore correct limit Revert "ath9k: fix going to full-sleep on PS idle" rt2x00: Fix rfkill_polling register function. bcma: fix build error on MIPS; implicit pcibios_enable_device netfilter: nf_conntrack: fix incorrect logic in nf_conntrack_init_net netfilter: nf_ct_ipv4: packets with wrong ihl are invalid netfilter: nf_ct_ipv4: handle invalid IPv4 and IPv6 packets consistently net/wireless/wext-core.c: add missing kfree rtlwifi: Fix oops on rate-control failure mac80211: Convert WARN_ON to WARN_ON_ONCE rtlwifi: rtl8192de: Fix firmware initialization nl80211: ensure interface is up in various APIs ...
| | * netfilter: ip6_tables: ip6t_ext_hdr is now static inlinePablo Neira Ayuso2012-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We may hit this in xt_LOG: net/built-in.o:xt_LOG.c:function dump_ipv6_packet: error: undefined reference to 'ip6t_ext_hdr' happens with these config options: CONFIG_NETFILTER_XT_TARGET_LOG=y CONFIG_IP6_NF_IPTABLES=m ip6t_ext_hdr is fairly small and it is called in the packet path. Make it static inline. Reported-by: Simon Kirby <sim@netnation.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| * | Merge tag 'dmaengine-fixes' of ↵Linus Torvalds2012-04-10
| |\ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine Pull dmaengine fixes from Dan Williams: 1/ regression fix for Xen as it now trips over a broken assumption about the dma address size on 32-bit builds 2/ new quirk for netdma to ignore dma channels that cannot meet netdma alignment requirements 3/ fixes for two long standing issues in ioatdma (ring size overflow) and iop-adma (potential stack corruption) * tag 'dmaengine-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine: netdma: adding alignment check for NETDMA ops ioatdma: DMA copy alignment needed to address IOAT DMA silicon errata ioat: ring size variables need to be 32bit to avoid overflow iop-adma: Corrected array overflow in RAID6 Xscale(R) test. ioat: fix size of 'completion' for Xen
| | * netdma: adding alignment check for NETDMA opsDave Jiang2012-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the fallout from adding memcpy alignment workaround for certain IOATDMA hardware. NetDMA will only use DMA engine that can handle byte align ops. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | | net/ipv6/exthdrs.c: Strict PadN option checkingEldad Zack2012-04-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Added strict checking of PadN, as PadN can be used to increase header size and thus push the protocol header into the 2nd fragment. PadN is used to align the options within the Hop-by-Hop or Destination Options header to 64-bit boundaries. The maximum valid size is thus 7 bytes. RFC 4942 recommends to actively check the "payload" itself and ensure that it contains only zeroes. See also RFC 4942 section 2.1.9.5. Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net/ipv6/ipv6_sockglue.c: Removed redundant externEldad Zack2012-04-12
| | | | | | | | | | | | | | | | | | | | | extern int sysctl_mld_max_msf is already defined in linux/ipv6.h. Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Treat ND option 31 as userland (DNSSL support)Alexey I. Froloff2012-04-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | As specified in RFC6106, DNSSL option contains one or more domain names of DNS suffixes. 8-bit identifier of the DNSSL option type as assigned by the IANA is 31. This option should also be treated as userland. Signed-off-by: Alexey I. Froloff <raorn@raorn.name> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2012-04-10
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| * | ipv6: fix array index in ip6_mc_add_src()RongQing.Li2012-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert array index from the loop bound to the loop index. And remove the void type conversion to ip6_mc_del1_src() return code, seem it is unnecessary, since ip6_mc_del1_src() does not use __must_check similar attribute, no compiler will report the warning when it is removed. v2: enrich the commit header Signed-off-by: RongQing.Li <roy.qing.li@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2012-04-02
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Provide device string properly for USB i2400m wimax devices, also don't OOPS when providing firmware string. From Phil Sutter. 2) Add support for sh_eth SH7734 chips, from Nobuhiro Iwamatsu. 3) Add another device ID to USB zaurus driver, from Guan Xin. 4) Loop index start in pool vector iterator is wrong causing MAC to not get configured in bnx2x driver, fix from Dmitry Kravkov. 5) EQL driver assumes HZ=100, fix from Eric Dumazet. 6) Now that skb_add_rx_frag() can specify the truesize increment separately, do so in f_phonet and cdc_phonet, also from Eric Dumazet. 7) virtio_net accidently uses net_ratelimit() not only on the kernel warning but also the statistic bump, fix from Rick Jones. 8) ip_route_input_mc() uses fixed init_net namespace, oops, use dev_net(dev) instead. Fix from Benjamin LaHaise. 9) dev_forward_skb() needs to clear the incoming interface index of the SKB so that it looks like a new incoming packet, also from Benjamin LaHaise. 10) iwlwifi mistakenly initializes a channel entry as 2GHZ instead of 5GHZ, fix from Stanislav Yakovlev. 11) Missing kmalloc() return value checks in orinoco, from Santosh Nayak. 12) ath9k doesn't check for HT capabilities in the right way, it is checking ht_supported instead of the ATH9K_HW_CAP_HT flag. Fix from Sujith Manoharan. 13) Fix x86 BPF JIT emission of 16-bit immediate field of AND instructions, from Feiran Zhuang. 14) Avoid infinite loop in GARP code when registering sysfs entries. From David Ward. 15) rose protocol uses memcpy instead of memcmp in a device address comparison, oops. Fix from Daniel Borkmann. 16) Fix build of lpc_eth due to dev_hw_addr_rancom() interface being renamed to eth_hw_addr_random(). From Roland Stigge. 17) Make ipv6 RTM_GETROUTE interpret RTA_IIF attribute the same way that ipv4 does. Fix from Shmulik Ladkani. 18) via-rhine has an inverted bit test, causing suspend/resume regressions. Fix from Andreas Mohr. 19) RIONET assumes 4K page size, fix from Akinobu Mita. 20) Initialization of imask register in sky2 is buggy, because bits are "or'd" into an uninitialized local variable. Fix from Lino Sanfilippo. 21) Fix FCOE checksum offload handling, from Yi Zou. 22) Fix VLAN processing regression in e1000, from Jiri Pirko. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits) sky2: dont overwrite settings for PHY Quick link tg3: Fix 5717 serdes powerdown problem net: usb: cdc_eem: fix mtu net: sh_eth: fix endian check for architecture independent usb/rtl8150 : Remove duplicated definitions rionet: fix page allocation order of rionet_active via-rhine: fix wait-bit inversion. ipv6: Fix RTM_GETROUTE's interpretation of RTA_IIF to be consistent with ipv4 net: lpc_eth: Fix rename of dev_hw_addr_random net/netfilter/nfnetlink_acct.c: use linux/atomic.h rose_dev: fix memcpy-bug in rose_set_mac_address Fix non TBI PHY access; a bad merge undid bug fix in a previous commit. net/garp: avoid infinite loop if attribute already exists x86 bpf_jit: fix a bug in emitting the 16-bit immediate operand of AND bonding: emit event when bonding changes MAC mac80211: fix oper channel timestamp updation ath9k: Use HW HT capabilites properly MAINTAINERS: adding maintainer for ipw2x00 net: orinoco: add error handling for failed kmalloc(). net/wireless: ipw2x00: fix a typo in wiphy struct initilization ...
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