summaryrefslogtreecommitdiffstats
path: root/net/sctp/sm_sideeffect.c
Commit message (Collapse)AuthorAgeFilesLines
* sctp: Rework the tsn map to use generic bitmap.Vlad Yasevich2008-10-081-1/+2
| | | | | | | | | | | | | | | | | | | The tsn map currently use is 4K large and is stuck inside the sctp_association structure making memory references REALLY expensive. What we really need is at most 4K worth of bits so the biggest map we would have is 512 bytes. Also, the map is only really usefull when we have gaps to store and report. As such, starting with minimal map of say 32 TSNs (bits) should be enough for normal low-loss operations. We can grow the map by some multiple of 32 along with some extra room any time we receive the TSN which would put us outside of the map boundry. As we close gaps, we can shift the map to rebase it on the latest TSN we've seen. This saves 4088 bytes per association just in the map alone along savings from the now unnecessary structure members. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sctp: enable cookie-echo retransmission transport switchVlad Yasevich2008-10-011-34/+44
| | | | | | | | | This patch enables cookie-echo retransmission transport switch feature. If COOKIE-ECHO retransmission happens, it will be sent to the address other than the one last sent to. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
* sctp: Follow security requirement of responding with 1 packetVlad Yasevich2008-06-191-9/+18
| | | | | | | | | | | | | | | | | | | | | | | 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>
* sctp: Bring SCTP_DELAYED_ACK socket option into API complianceWei Yongjun2008-05-091-4/+13
| | | | | | | | | 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>
* Merge branch 'master' of ↵David S. Miller2008-04-141-0/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | 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
| * [SCTP]: Fix protocol violation when receiving an error lenght INIT-ACKGui Jianfeng2008-04-121-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | [SCTP]: Remove an unused parameter from sctp_cmd_hb_timer_updateGui Jianfeng2008-04-121-2/+1
| | | | | | | | | | | | | | | | | | 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>
* | [SCTP]: "list_for_each()" -> "list_for_each_entry()" where appropriate.Robert P. J. Day2008-04-121-13/+7
| | | | | | | | | | | | | | | | | | | | 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>
* | net: replace remaining __FUNCTION__ occurrencesHarvey Harrison2008-03-051-3/+3
|/ | | | | | | __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Stop claiming that this is a "reference implementation"Vlad Yasevich2008-02-051-4/+4
| | | | | | | | | | | I was notified by Randy Stewart that lksctp claims to be "the reference implementation". First of all, "the refrence implementation" was the original implementation of SCTP in usersapce written ty Randy and a few others. Second, after looking at the definiton of 'reference implementation', we don't really meet the requirements. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
* SCTP: Fix difference cases of retransmit.Vlad Yasevich2007-11-071-1/+9
| | | | | | | | | | | | | | | | | | | | | Commit d0ce92910bc04e107b2f3f2048f07e94f570035d broke several retransmit cases including fast retransmit. The reason is that we should only delay by rto while doing retranmists as a result of a timeout. Retransmit as a result of path mtu discover, fast retransmit, or other evernts that should trigger immidiate retransmissions got broken. Also, since rto is doubled prior to marking of packets elegable for retransmission, we never marked correct chunks anyway. The fix is provide a reason for a given retransmission so that we can mark chunks appropriately and to save the old rto value to do comparisons against. All regressions tests passed with this code. Spotted by Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
* [SCTP]: Implete SCTP-AUTH parameter processingVlad Yasevich2007-10-101-0/+5
| | | | | | | | | | | | Implement processing for the CHUNKS, RANDOM, and HMAC parameters and deal with how this parameters are effected by association restarts. In particular, during unexpeted INIT processing, we need to reply with parameters from the original INIT chunk. Also, after restart, we need to update the old association with new peer parameters and change the association shared keys. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* SCTP: Use net_ratelimit to suppress error messages print too fastWei Yongjun2007-08-301-2/+3
| | | | | | | | | | | | | When multi bundling SHUTDOWN-ACK message is received in ESTAB state, this will cause "sctp protocol violation state" message print many times. If SHUTDOWN-ACK is bundled 300 times in one packet, message will be print 300 times. The same problem also exists when received unexpected HEARTBEAT-ACK message which is bundled message times. This patch used net_ratelimit() to suppress error messages print too fast. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
* SCTP: properly clean up fragment and ordering queues during FWD-TSN.Vlad Yasevich2007-08-291-0/+3
| | | | | | | | | When we recieve a FWD-TSN (meaning the peer has abandoned the data), we need to clean up any partially received messages that may be hanging out on the re-assembly or re-ordering queues. This is a MUST requirement that was not properly done before. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com.>
* [SCTP]: Set assoc_id correctly during INIT collision.Vlad Yasevich2007-05-041-0/+35
| | | | | | | | | | | | | | | | | | | | | | | During the INIT/COOKIE-ACK collision cases, it's possible to get into a situation where the association id is not yet set at the time of the user event generation. As a result, user events have an association id set to 0 which will confuse applications. This happens if we hit case B of duplicate cookie processing. In the particular example found and provided by Oscar Isaula <Oscar.Isaula@motorola.com>, flow looks like this: A B ---- INIT-------> (lost) <---------INIT------ ---- INIT-ACK---> <------ Cookie ECHO When the Cookie Echo is received, we end up trying to update the association that was created on A as a result of the (lost) INIT, but that association doesn't have the ID set yet. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: cleanup extra semicolonsStephen Hemminger2007-04-251-2/+3
| | | | | | | | | | | Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Implement sac_info field in SCTP_ASSOC_CHANGE notification.Vlad Yasevich2007-04-251-3/+8
| | | | | | | | | | | | | | | | As stated in the sctp socket api draft: sac_info: variable If the sac_state is SCTP_COMM_LOST and an ABORT chunk was received for this association, sac_info[] contains the complete ABORT chunk as defined in the SCTP specification RFC2960 [RFC2960] section 3.3.7. We now save received ABORT chunks into the sac_info field and pass that to the user. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] SCTP: Fix whitespace errors.YOSHIFUJI Hideaki2007-02-101-34/+34
| | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Force update of the rto when processing HB-ACKVlad Yasevich2007-01-301-0/+6
| | | | | | | | | | | | | When processing a HEARTBEAT-ACK it's possible that the transport rto timers will not be updated because a prior T3-RTX processing would have cleared the rto_pending flag on the transport. However, if we received a valid HEARTBEAT-ACK, we want to force update the rto variables, so re-set the rto_pending flag before calling sctp_transport_update_rto(). Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Fix SACK sequence during shutdownVlad Yasevich2007-01-231-1/+1
| | | | | | | | | | | | Currently, when association enters SHUTDOWN state,the implementation will SACK any DATA first and then transmit the SHUTDOWN chunk. This is against the order required by 2960bis spec. SHUTDOWN must always be first, followed by SACK. This change forces this order and also enables bundling. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: SCTP_CMD_PROCESS_CTSN annotations.Al Viro2006-12-021-1/+1
| | | | | | | argument passed as __be32 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Trivial ->ipaddr_h -> ->ipaddr conversions.Al Viro2006-12-021-2/+2
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: sctp_assoc_del_peer() switched to net-endian.Al Viro2006-12-021-1/+1
| | | | | | | Callers adjusted. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Switch ->primary_addr to net-endian.Al Viro2006-12-021-3/+1
| | | | | | | Users adjusted. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Switch ->cmp_addr() and sctp_cmp_addr_exact() to net-endian.Al Viro2006-12-021-2/+4
| | | | | | | | | | | instances of ->cmp_addr() are fine with switching both arguments to net-endian; callers other than in sctp_cmp_addr_exact() (both as ->cmp_addr(...) and direct calls of instances) adjusted; sctp_cmp_addr_exact() switched to net-endian itself and adjustment is done in its callers Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Beginning of conversion to net-endian for embedded sctp_addr.Al Viro2006-12-021-4/+4
| | | | | | | | | | | | | | | | | | | Part 1: rename sctp_chunk->source, sctp_sockaddr_entry->a, sctp_transport->ipaddr and sctp_transport->saddr (to ..._h) The next patch will reintroduce these fields and keep them as net-endian mirrors of the original (renamed) ones. Split in two patches to make sure that we hadn't forgotten any instanes. Later in the series we'll eliminate uses of host-endian variants (basically switching users to net-endian counterparts as we progress through that mess). Then host-endian ones will die. Other embedded host-endian sctp_addr will be easier to switch directly, so we leave them alone for now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: SCTP_CMD_ASSOC_FAILED annotations.Al Viro2006-12-021-1/+1
| | | | | | | also always get __be16 protocol error; switch to SCTP_PERR() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: SCTP_CMD_INIT_FAILED annotations.Al Viro2006-12-021-1/+1
| | | | | | | | | | argument stored for SCTP_CMD_INIT_FAILED is always __be16 (protocol error). Introduced new field and accessor for it (SCTP_PERR()); switched to their use (from SCTP_U32() and .u32) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Verify all the paths to a peer via heartbeat before using them.Sridhar Samudrala2006-07-211-2/+10
| | | | | | | | This patch implements Path Initialization procedure as described in Sec 2.36 of RFC4460. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Set sk_err so that poll wakes up after a non-blocking connect failure.Sridhar Samudrala2006-05-191-4/+12
| | | | | | Also fix some other cases where sk_err is not set for 1-1 style sockets. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
* [SCTP]: Fix bad sysctl formatting of SCTP timeout values on 64-bit m/cs.Vlad Yasevich2006-01-171-2/+2
| | | | | | | | | Change all the structure members that hold jiffies to be of type unsigned long. This also corrects bad sysctl formating on 64 bit architectures. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
* [NET]: Change some "if (x) BUG();" to "BUG_ON(x);"Kris Katterjohn2006-01-091-2/+1
| | | | | | | This changes some simple "if (x) BUG();" statements to "BUG_ON(x);" Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Update SCTP_PEER_ADDR_PARAMS socket option to the latest api draft.Frank Filz2006-01-031-4/+22
| | | | | | | | | | This patch adds support to set/get heartbeat interval, maximum number of retransmissions, pathmtu, sackdelay time for a particular transport/ association/socket as per the latest SCTP sockets api draft11. Signed-off-by: Frank Filz <ffilz@us.ibm.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Remove timeouts[] array from sctp_endpoint.Vladislav Yasevich2005-11-111-3/+3
| | | | | | | | | | The socket level timeout values are maintained in sctp_sock and association level timeouts are in sctp_association. So there is no need for ep->timeouts. Signed-off-by: Vladislav Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] gfp flags annotations - part 1Al Viro2005-10-081-6/+6
| | | | | | | | | | | | - added typedef unsigned int __nocast gfp_t; - replaced __nocast uses for gfp flags with gfp_t - it gives exactly the same warnings as far as sparse is concerned, doesn't change generated code (from gcc point of view we replaced unsigned int with typedef) and documents what's going on far better. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SCTP]: __nocast annotationsAlexey Dobriyan2005-07-111-6/+7
| | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP] sctp_connectx() API supportFrank Filz2005-06-201-20/+85
| | | | | | | | | Implements sctp_connectx() as defined in the SCTP sockets API draft by tunneling the request through a setsockopt(). Signed-off-by: Frank Filz <ffilzlnx@us.ibm.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+1395
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
OpenPOWER on IntegriCloud