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* [SCTP]: Fix kernel panic while received ASCONF chunk with bad serial numberWei Yongjun2008-02-06
| | | | | | | | | | | | | | | | While recevied ASCONF chunk with serial number less then needed, kernel will treat this chunk as a retransmitted ASCONF chunk and find cached ASCONF-ACK chunk used sctp_assoc_lookup_asconf_ack(). But this function will always return NO-NULL. So response with cached ASCONF-ACKs chunk will cause kernel panic. In function sctp_assoc_lookup_asconf_ack(), if the cached ASCONF-ACKs list asconf_ack_list is empty, or if the serial being requested does not exists, the function as it currectly stands returns the actuall list_head asoc->asconf_ack_list, this is not a cache ASCONF-ACK chunk but a bogus pointer. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
* [SCTP]: Stop claiming that this is a "reference implementation"Vlad Yasevich2008-02-05
| | | | | | | | | | | 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]: Update ASCONF processing to conform to spec.Vlad Yasevich2008-01-28
| | | | | | | | | | | The processing of the ASCONF chunks has changed a lot in the spec. New items are: 1. A list of ASCONF-ACK chunks is now cached 2. The source of the packet is used in response. 3. New handling for unexpect ASCONF chunks. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Handle the wildcard ADD-IP Address parameterVlad Yasevich2008-01-28
| | | | | | | | | | | | The Address Parameter in the parameter list of the ASCONF chunk may be a wildcard address. In this case special processing is required. For the 'add' case, the source IP of the packet is added. In the 'del' case, all addresses except the source IP of packet are removed. In the "mark primary" case, the source address is marked as primary. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Convert init_timer into setup_timerPavel Emelyanov2008-01-28
| | | | | | | | | | | | | Many-many code in the kernel initialized the timer->function and timer->data together with calling init_timer(timer). There is already a helper for this. Use it for networking code. The patch is HUGE, but makes the code 130 lines shorter (98 insertions(+), 228 deletions(-)). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* SCTP: Allow ADD_IP to work with AUTH for backward compatibility.Vlad Yasevich2007-11-07
| | | | | | | | | | This patch adds a tunable that will allow ADD_IP to work without AUTH for backward compatibility. The default value is off since the default value for ADD_IP is off as well. People who need to use ADD-IP with older implementations take risks of connection hijacking and should consider upgrading or turning this tunable on. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
* SCTP: Correctly disable ADD-IP when AUTH is not supported.Vlad Yasevich2007-11-07
| | | | Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
* [SCTP]: Implement the receive and verification of AUTH chunkVlad Yasevich2007-10-10
| | | | | | | | | This patch implements the receive path needed to process authenticated chunks. Add ability to process the AUTH chunk and handle edge cases for authenticated COOKIE-ECHO as well. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Implete SCTP-AUTH parameter processingVlad Yasevich2007-10-10
| | | | | | | | | | | | 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]: Implement SCTP-AUTH initializations.Vlad Yasevich2007-10-10
| | | | | | | | The patch initializes AUTH related members of the generic SCTP structures and provides a way to enable/disable auth extension. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Convert bind_addr_list locking to RCUVlad Yasevich2007-09-16
| | | | | | | | | | | | | | | | | | | | | Since the sctp_sockaddr_entry is now RCU enabled as part of the patch to synchronize sctp_localaddr_list, it makes sense to change all handling of these entries to RCU. This includes the sctp_bind_addrs structure and it's list of bound addresses. This list is currently protected by an external rw_lock and that looks like an overkill. There are only 2 writers to the list: bind()/bindx() calls, and BH processing of ASCONF-ACK chunks. These are already seriealized via the socket lock, so they will not step on each other. These are also relatively rare, so we should be good with RCU. The readers are varied and they are easily converted to RCU. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Sridhar Samdurala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* SCTP: Uncomfirmed transports can't become InactiveVlad Yasevich2007-08-30
| | | | | | | | | Do not set Unconfirmed transports to Inactive state. This may result in an inactive association being destroyed since we start counting errors on "inactive" transports against the association. This was found at the SCTP interop event. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
* [SCTP] Flag a pmtu change requestVlad Yasevich2007-06-13
| | | | | | | | | | | | Currently, if the socket is owned by the user, we drop the ICMP message. As a result SCTP forgets that path MTU changed and never adjusting it's estimate. This causes all subsequent packets to be fragmented. With this patch, we'll flag the association that it needs to udpate it's estimate based on the already updated routing information. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Acked-by: Sridhar Samudrala <sri@us.ibm.com>
* [SCTP]: Set assoc_id correctly during INIT collision.Vlad Yasevich2007-05-04
| | | | | | | | | | | | | | | | | | | | | | | 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 Hemminger2007-04-26
| | | | | | | | | | | 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 SCTP_MAX_BURST socket option.Vlad Yasevich2007-04-26
| | | | | Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Implement SCTP_ADDR_CONFIRMED state for ADDR_CHNAGE eventVlad Yasevich2007-04-26
| | | | | Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Reset some transport and association variables on restartVlad Yasevich2007-03-20
| | | | | | | | | | | | | | | | | | If the association has been restarted, we need to reset the transport congestion variables as well as accumulated error counts and CACC variables. If we do not, the association will use the wrong values and may terminate prematurely. This was found with a scenario where the peer restarted the association when lksctp was in the last HB timeout for its association. The restart happened, but the error counts have not been reset and when the timeout occurred, a newly restarted association was terminated due to excessive retransmits. 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]: Clean up stale data during association restartVlad Yasevich2007-03-20
| | | | | | | | | | | | | During association restart we may have stale data sitting on the ULP queue waiting for ordering or reassembly. This data may cause severe problems if not cleaned up. In particular stale data pending ordering may cause problems with receive window exhaustion if our peer has decided to restart the association. 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>
* [PATCH] remove many unneeded #includes of sched.hTim Schmielau2007-02-14
| | | | | | | | | | | | | | | | | | | | | | | | After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [NET] SCTP: Fix whitespace errors.YOSHIFUJI Hideaki2007-02-11
| | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Add support for SCTP_CONTEXT socket option.Ivan Skytte Jorgensen2006-12-13
| | | | | | Signed-off-by: Ivan Skytte Jorgensen <isj-sctp@i1.dk> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David Howells2006-12-05
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/infiniband/core/iwcm.c drivers/net/chelsio/cxgb2.c drivers/net/wireless/bcm43xx/bcm43xx_main.c drivers/net/wireless/prism54/islpci_eth.c drivers/usb/core/hub.h drivers/usb/input/hid-core.c net/core/netpoll.c Fix up merge failures with Linus's head and fix new compilation failures. Signed-Off-By: David Howells <dhowells@redhat.com>
| * [SCTP]: We need to be careful when copying to sockaddr_storage.Al Viro2006-12-03
| | | | | | | | | | 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 Viro2006-12-03
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SCTP]: Switch sctp_assoc_add_peer() to net-endian.Al Viro2006-12-03
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SCTP]: sctp_transport_{init,new}() switched to net-endian.Al Viro2006-12-03
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SCTP]: Switch sctp_assoc_is_match to net-endian.Al Viro2006-12-03
| | | | | | | | | | | | | | | | | | | | Along with it, statics in input.c that end up calling it (__sctp_lookup_association, sctp_lookup_association, __sctp_rcv_init_lookup, __sctp_rcv_lookup). Callers are adjusted. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SCTP]: Switch sctp_assoc_lookup_paddr() to net-endian.Al Viro2006-12-03
| | | | | | | | | | | | | | Callers updated. 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 Viro2006-12-03
| | | | | | | | | | | | | | 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 Viro2006-12-03
| | | | | | | | | | | | | | Users adjusted. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SCTP]: Switch sctp_bind_addr_match() to net-endian.Al Viro2006-12-03
| | | | | | | | | | | | | | Callers 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 Viro2006-12-03
| | | | | | | | | | | | | | | | | | | | | | 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 Viro2006-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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] bug: sctp_assoc_control_transport() breakageAl Viro2006-12-03
| | | | | | | | | | | | | | | | | | | | | | a) struct sockaddr_storage * passed to sctp_ulpevent_make_peer_addr_change() actually points at union sctp_addr field in a structure. Then that sucker gets copied to userland, with whatever junk we might have there. b) it's actually having host-endian sin_port. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SCTP] bug: sctp_assoc_lookup_laddr() is broken with ipv6.Al Viro2006-12-03
| | | | | | | | | | | | | | | | | | It expects (and gets) laddr with net-endian sin_port. And then it calls sctp_bind_addr_match(), which *does* care about port numbers in case of ipv6 and expects them to be host-endian. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SCTP]: Trivial sctp endianness annotations.Al Viro2006-12-03
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | WorkStruct: make allyesconfigDavid Howells2006-11-22
|/ | | | | | Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
* [SCTP]: Remove temporary associations from backlog and hash.Vlad Yasevich2006-10-30
| | | | | | | | | | | | | Every time SCTP creates a temporary association, the stack hashes it, puts it on a list of endpoint associations and increments the backlog. However, the lifetime of a temporary association is the processing time of a current packet and it's destroyed after that. In fact, we don't really want anyone else finding this association. There is no reason to do this extra work. 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]: Verify all the paths to a peer via heartbeat before using them.Sridhar Samudrala2006-07-21
| | | | | | | | 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]: Update SCTP_PEER_ADDR_PARAMS socket option to the latest api draft.Frank Filz2006-01-03
| | | | | | | | | | 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]: Include ulpevents in socket receive buffer accounting.Neil Horman2005-11-11
| | | | | | | | | | | Also introduces a sysctl option to configure the receive buffer accounting policy to be either at socket or association level. Default is all the associations on the same socket share the receive buffer. Signed-off-by: Neil Horman <nhorman@tuxdriver.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 Yasevich2005-11-11
| | | | | | | | | | 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>
* [NET]: kfree cleanupJesper Juhl2005-11-08
| | | | | | | | | | | | | | | From: Jesper Juhl <jesper.juhl@gmail.com> This is the net/ part of the big kfree cleanup patch. Remove pointless checks for NULL prior to calling kfree() in net/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Arnaldo Carvalho de Melo <acme@conectiva.com.br> Acked-by: Marcel Holtmann <marcel@holtmann.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Andrew Morton <akpm@osdl.org>
* [PATCH] gfp flags annotations - part 1Al Viro2005-10-08
| | | | | | | | | | | | - 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 Dobriyan2005-07-11
| | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Use struct list_head for chunk lists, not sk_buff_head.David S. Miller2005-07-09
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP] sctp_connectx() API supportFrank Filz2005-06-20
| | | | | | | | | 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 Torvalds2005-04-16
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!
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