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2008-07-19netns: Use net_eq() to compare net-namespaces for optimization.YOSHIFUJI Hideaki
Without CONFIG_NET_NS, namespace is always &init_net. Compiler will be able to omit namespace comparisons with this patch. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18sctp: Update sctp global memory limit allocations.Vlad Yasevich
Update sctp global memory limit allocations to be the same as TCP. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18sctp: remove unnecessary byteshifting, calculate directly in big-endianHarvey Harrison
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18sctp: Allow only 1 listening socket with SO_REUSEADDRVlad Yasevich
When multiple socket bind to the same port with SO_REUSEADDR, only 1 can be listining. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18sctp: Do not leak memory on multiple listen() callsVlad Yasevich
SCTP permits multiple listen call and on subsequent calls we leak he memory allocated for the crypto transforms. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18sctp: Support ipv6only AF_INET6 sockets.Vlad Yasevich
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18sctp: Prevent uninitialized memory accessFlorian Westphal
valgrind reports uninizialized memory accesses when running sctp inside the network simulation cradle simulator: Conditional jump or move depends on uninitialised value(s) at 0x570E34A: sctp_assoc_sync_pmtu (associola.c:1324) by 0x57427DA: sctp_packet_transmit (output.c:403) by 0x5710EFF: sctp_outq_flush (outqueue.c:824) by 0x5710B88: sctp_outq_uncork (outqueue.c:701) by 0x5745262: sctp_cmd_interpreter (sm_sideeffect.c:1548) by 0x57444B7: sctp_side_effects (sm_sideeffect.c:976) by 0x5744460: sctp_do_sm (sm_sideeffect.c:945) by 0x572157D: sctp_primitive_ASSOCIATE (primitive.c:94) by 0x5725C04: __sctp_connect (socket.c:1094) by 0x57297DC: sctp_connect (socket.c:3297) Conditional jump or move depends on uninitialised value(s) at 0x575D3A5: mod_timer (timer.c:630) by 0x5752B78: sctp_cmd_hb_timers_start (sm_sideeffect.c:555) by 0x5754133: sctp_cmd_interpreter (sm_sideeffect.c:1448) by 0x5753607: sctp_side_effects (sm_sideeffect.c:976) by 0x57535B0: sctp_do_sm (sm_sideeffect.c:945) by 0x571E9AE: sctp_endpoint_bh_rcv (endpointola.c:474) by 0x573347F: sctp_inq_push (inqueue.c:104) by 0x572EF93: sctp_rcv (input.c:256) by 0x5689623: ip_local_deliver_finish (ip_input.c:230) by 0x5689759: ip_local_deliver (ip_input.c:268) by 0x5689CAC: ip_rcv_finish (dst.h:246) #1 is due to "if (t->pmtu_pending)". 8a4794914f9cf2681235ec2311e189fe307c28c7 "[SCTP] Flag a pmtu change request" suggests it should be initialized to 0. #2 is the heartbeat timer 'expires' value, which is uninizialised, but test by mod_timer(). T3_rtx_timer seems to be affected by the same problem, so initialize it, too. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18sctp: Don't abort initialization when CONFIG_PROC_FS=nFlorian Westphal
This puts CONFIG_PROC_FS defines around the proc init/exit functions and also avoids compiling proc.c if procfs is not supported. Also make SCTP_DBG_OBJCNT depend on procfs. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-16mib: add net to NET_INC_STATS_BHPavel Emelyanov
Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-16sock: add net to prot->enter_memory_pressure callbackPavel Emelyanov
The tcp_enter_memory_pressure calls NET_INC_STATS, but doesn't have where to get the net from. I decided to add a sk argument, not the net itself, only to factor all the required sock_net(sk) calls inside the enter_memory_pressure callback itself. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-16mib: add net to IP_INC_STATS_BHPavel Emelyanov
Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-14mib: add struct net to ICMP_INC_STATS_BHPavel Emelyanov
Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-08Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-3945.c net/mac80211/mlme.c
2008-07-08sctp: Mark the tsn as received after all allocations finishVlad Yasevich
If we don't have the buffer space or memory allocations fail, the data chunk is dropped, but TSN is still reported as received. This introduced a data loss that can't be recovered. We should only mark TSNs are received after memory allocations finish. The one exception is the invalid stream identifier, but that's due to user error and is reported back to the user. This was noticed by Michael Tuexen. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-01sctp: Mark GET_PEER|LOCAL_ADDR_OLD deprecated.Vlad Yasevich
Socket options SCTP_GET_PEER_ADDR_OLD, SCTP_GET_PEER_ADDR_NUM_OLD, SCTP_GET_LOCAL_ADDR_OLD, and SCTP_GET_PEER_LOCAL_ADDR_NUM_OLD have been replaced by newer versions a since 2005. It's time to officially deprecate them and schedule them for removal. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-28Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl4965-base.c
2008-06-20sctp: Make sure N * sizeof(union sctp_addr) does not overflow.David S. Miller
As noticed by Gabriel Campana, the kmalloc() length arg passed in by sctp_getsockopt_local_addrs_old() can overflow if ->addr_num is large enough. Therefore, enforce an appropriate limit. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-20sctp: Kill unused variable in sctp_assoc_bh_rcv()Vlad Yasevich
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-19sctp: Follow security requirement of responding with 1 packetVlad Yasevich
RFC 4960, Section 11.4. Protection of Non-SCTP-Capable Hosts When an SCTP stack receives a packet containing multiple control or DATA chunks and the processing of the packet requires the sending of multiple chunks in response, the sender of the response chunk(s) MUST NOT send more than one packet. If bundling is supported, multiple response chunks that fit into a single packet MAY be bundled together into one single response packet. If bundling is not supported, then the sender MUST NOT send more than one response chunk and MUST discard all other responses. Note that this rule does NOT apply to a SACK chunk, since a SACK chunk is, in itself, a response to DATA and a SACK does not require a response of more DATA. We implement this by not servicing our outqueue until we reach the end of the packet. This enables maximum bundling. We also identify 'response' chunks and make sure that we only send 1 packet when sending such chunks. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-19sctp: Validate Initiate Tag when handling ICMP messageWei Yongjun
This patch add to validate initiate tag and chunk type if verification tag is 0 when handling ICMP message. RFC 4960, Appendix C. ICMP Handling ICMP6) An implementation MUST validate that the Verification Tag contained in the ICMP message matches the Verification Tag of the peer. If the Verification Tag is not 0 and does NOT match, discard the ICMP message. If it is 0 and the ICMP message contains enough bytes to verify that the chunk type is an INIT chunk and that the Initiate Tag matches the tag of the peer, continue with ICMP7. If the ICMP message is too short or the chunk type or the Initiate Tag does not match, silently discard the packet. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17sctp: fix error path in sctp_proc_initPavel Emelyanov
After the sctp_remaddr_proc_init failed, the proper rollback is not the sctp_remaddr_proc_exit, but the sctp_assocs_proc_exit. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/rt2x00/Kconfig drivers/net/wireless/rt2x00/rt2x00usb.c net/sctp/protocol.c
2008-06-16sctp: Correclty set changeover_active for SFR-CACCVlad Yasevich
Right now, any time we set a primary transport we set the changeover_active flag. As a result, we invoke SFR-CACC even when there has been no changeover events. Only set changeover_active, when there is a true changeover event, i.e. we had a primary path and we are changing to another transport. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16sctp: Correctly cleanup procfs entries upon failure.Wei Yongjun
This patch remove the proc fs entry which has been created if fail to set up proc fs entry for the SCTP protocol. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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>
2008-06-10Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/tg3.c drivers/net/wireless/rt2x00/rt2x00dev.c net/mac80211/ieee80211_i.h
2008-06-09sctp: Fix problems with the new SCTP_DELAYED_ACK codeVlad Yasevich
The default sack frequency should be 2. Also fix copy/paste error when updating all transports. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04sctp: Fix ECN markings for IPv6Vlad Yasevich
Commit e9df2e8fd8fbc95c57dbd1d33dada66c4627b44c ("[IPV6]: Use appropriate sock tclass setting for routing lookup.") also changed the way that ECN capable transports mark this capability in IPv6. As a result, SCTP was not marking ECN capablity because the traffic class was never set. This patch brings back the markings for IPv6 traffic. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04sctp: Flush the queue only once during fast retransmit.Vlad Yasevich
When fast retransmit is triggered by a sack, we should flush the queue only once so that only 1 retransmit happens. Also, since we could potentially have non-fast-rtx chunks on the retransmit queue, we need make sure any chunks eligable for fast retransmit are sent first during fast retransmission. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Tested-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04sctp: Start T3-RTX timer when fast retransmitting lowest TSNVlad Yasevich
When we are trying to fast retransmit the lowest outstanding TSN, we need to restart the T3-RTX timer, so that subsequent timeouts will correctly tag all the packets necessary for retransmissions. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Tested-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04sctp: Correctly implement Fast Recovery cwnd manipulations.Vlad Yasevich
Correctly keep track of Fast Recovery state and do not reduce congestion window multiple times during sucht state. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Tested-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04sctp: Move sctp_v4_dst_saddr out of loopGui Jianfeng
There's no need to execute sctp_v4_dst_saddr() for each iteration, just move it out of loop. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-04sctp: retran_path update bug fixGui Jianfeng
If the current retran_path is the only active one, it should update it to the the next inactive one. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-05[SCTP]: Fix NULL dereference of asoc.YOSHIFUJI Hideaki
Commit 7cbca67c073263c179f605bdbbdc565ab29d801d ("[IPV6]: Support Source Address Selection API (RFC5014)") introduced NULL dereference of asoc to sctp_v6_get_saddr in net/sctp/ipv6.c. Pointed out by Johann Felix Soden <johfel@users.sourceforge.net>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-15Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-4965-rs.c drivers/net/wireless/rt2x00/rt61pci.c
2008-05-13sctp: Fix use of uninitialized pointerPatrick McHardy
Introduced by c4492586 (sctp: Add address type check while process paramaters of ASCONF chunk): net/sctp/sm_make_chunk.c: In function 'sctp_process_asconf': net/sctp/sm_make_chunk.c:2828: warning: 'addr_param' may be used uninitialized in this function net/sctp/sm_make_chunk.c:2828: note: 'addr_param' was declared here Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-12sctp: Add address type check while process paramaters of ASCONF chunkWei Yongjun
If socket is create by AF_INET type, add IPv6 address to asoc will cause kernel panic while packet is transmitted on that transport. This patch add address type check before process paramaters of ASCONF chunk. If peer is not support this address type, return with error invald parameter. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-12sctp: Do not enable peer IPv6 address support on PF_INET socketWei Yongjun
If socket is create by PF_INET type, it can not used IPv6 address to send/recv DATA, So we can not used IPv6 address even if peer tell us it support IPv6 address. This patch fix to only enabled peer IPv6 address support on PF_INET6 socket. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-09sctp: add sctp/remaddr table to complete RFC remote address table OIDNeil Horman
Add support for RFC3873 remote address table OID. +--(5) sctpAssocRemAddrTable | | | |--(-) sctpAssocId (shared index) | | | +--(1) sctpAssocRemAddrType (index) . | . +--(2) sctpAssocRemAddr (index) . | +--(3) sctpAssocRemAddrActive | +--(4) sctpAssocRemAddrHBActive | +--(5) sctpAssocRemAddrRTO | +--(6) sctpAssocRemAddrMaxPathRtx | +--(7) sctpAssocRemAddrRtx | +--(8) sctpAssocRemAddrStartTime This patch places all the requsite data in /proc/net/sctp/remaddr. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-09sctp: Support the new specification of sctp_connectx()Vlad Yasevich
The specification of sctp_connectx() has been changed to return an association id. We've added a new socket option that will return the association id as the return value from the setsockopt() call. The library that implements sctp_connectx() interface will implement both socket options. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-09sctp: Bring SCTP_DELAYED_ACK socket option into API complianceWei Yongjun
Brings delayed_ack socket option set/get into line with the latest ietf socket extensions API draft, while maintaining backwards compatibility. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-24[NET]: Fix heavy stack usage in seq_file output routines.Pavel Emelyanov
Plan C: we can follow the Al Viro's proposal about %n like in this patch. The same applies to udp, fib (the /proc/net/route file), rt_cache and sctp debug. This is minus ~150-200 bytes for each. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-17SCTP: Initialize partial_bytes_acked to 0, when all of the data is acked.Gui Jianfeng
According to RFC4960 7.2.2, When all of the data transmitted by the sender has been acknowledged by the recerver, partial_bytes_acked is initialized to 0. This patch conforms to rfc requirement. Without this fix, cwnd might be error incremented. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-14Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/ehea/ehea_main.c drivers/net/wireless/iwlwifi/Kconfig drivers/net/wireless/rt2x00/rt61pci.c net/ipv4/inet_timewait_sock.c net/ipv6/raw.c net/mac80211/ieee80211_sta.c
2008-04-12[SCTP]: Remove an unused parameter from sctp_cmd_hb_timer_updateGui Jianfeng
The 'asoc' parameter to sctp_cmd_hb_timer_update() is unused, and we can remove it. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-12[SCTP]: "list_for_each()" -> "list_for_each_entry()" where appropriate.Robert P. J. Day
Replacing (almost) all invocations of list_for_each() with list_for_each_entry() tightens up the code and allows for the deletion of numerous list iterator variables that are no longer necessary. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-12[SCTP]: Correct /proc/net/assocs formatting errorNeil Horman
Recently I posted a patch to add some informational items to /proc/net/sctp/assocs. All the information is correct, but because of how the seqfile show operation is laid out, some of the formatting is backwards. This patch corrects that formatting, so that the new information appears at the end of each line, rather than in the middle. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-12[SCTP]: IPv4 vs IPv6 addresses mess in sctp_inet[6]addr_event.Pavel Emelyanov
All IP addresses that are present in a system are duplicated on struct sctp_sockaddr_entry. They are linked in the global list called sctp_local_addr_list. And this struct unions IPv4 and IPv6 addresses. So, there can be rare case, when a sockaddr_in.sin_addr coincides with the corresponding part of the sockaddr_in6 and the notifier for IPv4 will carry away an IPv6 entry. The fix is to check the family before comparing the addresses. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-12[SCTP]: Fix compiler warning about const qualifiersVlad Yasevich
Fix 3 warnings about discarding const qualifiers: net/sctp/ulpevent.c:862: warning: passing argument 1 of 'sctp_event2skb' discards qualifiers from pointer target type net/sctp/sm_statefuns.c:4393: warning: passing argument 1 of 'SCTP_ASOC' discards qualifiers from pointer target type net/sctp/socket.c:5874: warning: passing argument 1 of 'cmsg_nxthdr' discards qualifiers from pointer target type Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-12[SCTP]: Fix protocol violation when receiving an error lenght INIT-ACKGui Jianfeng
When receiving an error length INIT-ACK during COOKIE-WAIT, a 0-vtag ABORT will be responsed. This action violates the protocol apparently. This patch achieves the following things. 1 If the INIT-ACK contains all the fixed parameters, use init-tag recorded from INIT-ACK as vtag. 2 If the INIT-ACK doesn't contain all the fixed parameters, just reflect its vtag. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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