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* Correctly close old nfsd/lockd sockets.Neil Brown2007-09-14
| | | | | | | | | | | | | | | | Commit aaf68cfbf2241d24d46583423f6bff5c47e088b3 added a bias to sk_inuse, so this test for an unused socket now fails. So no sockets get closed because they are old (they might get closed if the client closed them). This bug has existed since 2.6.21-rc1. Thanks to Wolfgang Walter for finding and reporting the bug. Cc: Wolfgang Walter <wolfgang.walter@studentenwerk.mhn.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [BLUETOOTH]: Fix non-COMPAT build of hci_sock.cDavid S. Miller2007-09-12
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [INET_DIAG]: Fix oops in netlink_rcv_skbPatrick McHardy2007-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | netlink_run_queue() doesn't handle multiple processes processing the queue concurrently. Serialize queue processing in inet_diag to fix a oops in netlink_rcv_skb caused by netlink_run_queue passing a NULL for the skb. BUG: unable to handle kernel NULL pointer dereference at virtual address 00000054 [349587.500454] printing eip: [349587.500457] c03318ae [349587.500459] *pde = 00000000 [349587.500464] Oops: 0000 [#1] [349587.500466] PREEMPT SMP [349587.500474] Modules linked in: w83627hf hwmon_vid i2c_isa [349587.500483] CPU: 0 [349587.500485] EIP: 0060:[<c03318ae>] Not tainted VLI [349587.500487] EFLAGS: 00010246 (2.6.22.3 #1) [349587.500499] EIP is at netlink_rcv_skb+0xa/0x7e [349587.500506] eax: 00000000 ebx: 00000000 ecx: c148d2a0 edx: c0398819 [349587.500510] esi: 00000000 edi: c0398819 ebp: c7a21c8c esp: c7a21c80 [349587.500517] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [349587.500521] Process oidentd (pid: 17943, ti=c7a20000 task=cee231c0 task.ti=c7a20000) [349587.500527] Stack: 00000000 c7a21cac f7c8ba78 c7a21ca4 c0331962 c0398819 f7c8ba00 0000004c [349587.500542] f736f000 c7a21cb4 c03988e3 00000001 f7c8ba00 c7a21cc4 c03312a5 0000004c [349587.500558] f7c8ba00 c7a21cd4 c0330681 f7c8ba00 e4695280 c7a21d00 c03307c6 7fffffff [349587.500578] Call Trace: [349587.500581] [<c010361a>] show_trace_log_lvl+0x1c/0x33 [349587.500591] [<c01036d4>] show_stack_log_lvl+0x8d/0xaa [349587.500595] [<c010390e>] show_registers+0x1cb/0x321 [349587.500604] [<c0103bff>] die+0x112/0x1e1 [349587.500607] [<c01132d2>] do_page_fault+0x229/0x565 [349587.500618] [<c03c8d3a>] error_code+0x72/0x78 [349587.500625] [<c0331962>] netlink_run_queue+0x40/0x76 [349587.500632] [<c03988e3>] inet_diag_rcv+0x1f/0x2c [349587.500639] [<c03312a5>] netlink_data_ready+0x57/0x59 [349587.500643] [<c0330681>] netlink_sendskb+0x24/0x45 [349587.500651] [<c03307c6>] netlink_unicast+0x100/0x116 [349587.500656] [<c0330f83>] netlink_sendmsg+0x1c2/0x280 [349587.500664] [<c02fcce9>] sock_sendmsg+0xba/0xd5 [349587.500671] [<c02fe4d1>] sys_sendmsg+0x17b/0x1e8 [349587.500676] [<c02fe92d>] sys_socketcall+0x230/0x24d [349587.500684] [<c01028d2>] syscall_call+0x7/0xb [349587.500691] ======================= [349587.500693] Code: f0 ff 4e 18 0f 94 c0 84 c0 0f 84 66 ff ff ff 89 f0 e8 86 e2 fc ff e9 5a ff ff ff f0 ff 40 10 eb be 55 89 e5 57 89 d7 56 89 c6 53 <8b> 50 54 83 fa 10 72 55 8b 9e 9c 00 00 00 31 c9 8b 03 83 f8 0f Reported by Athanasius <link@miggy.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPv6]: Fix NULL pointer dereference in ip6_flush_pending_framesYOSHIFUJI Hideaki2007-09-11
| | | | | | | | | | | | | | | | | | | | | | | Some of skbs in sk->write_queue do not have skb->dst because we do not fill skb->dst when we allocate new skb in append_data(). BTW, I think we may not need to (or we should not) increment some stats when using corking; if 100 sendmsg() (with MSG_MORE) result in 2 packets, how many should we increment? If 100, we should set skb->dst for every queued skbs. If 1 (or 2 (*)), we increment the stats for the first queued skb and we should just skip incrementing OutDiscards for the rest of queued skbs, adn we should also impelement this semantics in other places; e.g., we should increment other stats just once, not 100 times. *: depends on the place we are discarding the datagram. I guess should just increment by 1 (or 2). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: Fix/improve deadlock condition on module removal netfilterNeil Horman2007-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So I've had a deadlock reported to me. I've found that the sequence of events goes like this: 1) process A (modprobe) runs to remove ip_tables.ko 2) process B (iptables-restore) runs and calls setsockopt on a netfilter socket, increasing the ip_tables socket_ops use count 3) process A acquires a file lock on the file ip_tables.ko, calls remove_module in the kernel, which in turn executes the ip_tables module cleanup routine, which calls nf_unregister_sockopt 4) nf_unregister_sockopt, seeing that the use count is non-zero, puts the calling process into uninterruptible sleep, expecting the process using the socket option code to wake it up when it exits the kernel 4) the user of the socket option code (process B) in do_ipt_get_ctl, calls ipt_find_table_lock, which in this case calls request_module to load ip_tables_nat.ko 5) request_module forks a copy of modprobe (process C) to load the module and blocks until modprobe exits. 6) Process C. forked by request_module process the dependencies of ip_tables_nat.ko, of which ip_tables.ko is one. 7) Process C attempts to lock the request module and all its dependencies, it blocks when it attempts to lock ip_tables.ko (which was previously locked in step 3) Theres not really any great permanent solution to this that I can see, but I've developed a two part solution that corrects the problem Part 1) Modifies the nf_sockopt registration code so that, instead of using a use counter internal to the nf_sockopt_ops structure, we instead use a pointer to the registering modules owner to do module reference counting when nf_sockopt calls a modules set/get routine. This prevents the deadlock by preventing set 4 from happening. Part 2) Enhances the modprobe utilty so that by default it preforms non-blocking remove operations (the same way rmmod does), and add an option to explicity request blocking operation. So if you select blocking operation in modprobe you can still cause the above deadlock, but only if you explicity try (and since root can do any old stupid thing it would like.... :) ). Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack_ipv4: fix "Frag of proto ..." messagesPatrick McHardy2007-09-11
| | | | | | | | | | Since we're now using a generic tuple decoding function in ICMP connection tracking, ipv4_get_l4proto() might get called with a fragmented packet from within an ICMP error. Remove the error message we used to print when this happens. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6David S. Miller2007-09-11
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| * [Bluetooth] Fix parameter list for event filter commandMarcel Holtmann2007-09-09
| | | | | | | | | | | | | | On device initialization the event filters are cleared. In case of clearing the filters the extra condition type shall be omitted. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * [Bluetooth] Update security filter for Bluetooth 2.1Marcel Holtmann2007-09-09
| | | | | | | | | | | | | | This patch updates the HCI security filter with support for the Bluetooth 2.1 commands and events. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * [Bluetooth] Add compat handling for timestamp structureMarcel Holtmann2007-09-09
| | | | | | | | | | | | | | The timestamp structure needs special handling in case of compat programs. Use the same wrapping method the network core uses. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* | [IPV6]: Freeing alive inet6 addressDenis V. Lunev2007-09-11
| | | | | | | | | | | | | | | | | | | | | | | | From: Denis V. Lunev <den@openvz.org> addrconf_dad_failure calls addrconf_dad_stop which takes referenced address and drops the count. So, in6_ifa_put perrformed at out: is extra. This results in message: "Freeing alive inet6 address" and not released dst entries. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [DECNET]: Fix interface address listing regression.Patrick McHardy2007-09-11
| | | | | | | | | | | | | | Not all are listed, same as the IPV4 devinet bug. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV4] devinet: show all addresses assigned to interfaceStephen Hemminger2007-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug: http://bugzilla.kernel.org/show_bug.cgi?id=8876 Not all ips are shown by "ip addr show" command when IPs number assigned to an interface is more than 60-80 (in fact it depends on broadcast/label etc presence on each address). Steps to reproduce: It's terribly simple to reproduce: # for i in $(seq 1 100); do ip ad add 10.0.$i.1/24 dev eth10 ; done # ip addr show this will _not_ show all IPs. Looks like the problem is in netlink/ipv4 message processing. This is fix from bug submitter, it looks correct. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NET]: Do not dereference iov if length is zeroHerbert Xu2007-09-11
| | | | | | | | | | | | | | | | | | | | | | | | When msg_iovlen is zero we shouldn't try to dereference msg_iov. Right now the only thing that tries to do so is skb_copy_and_csum_datagram_iovec. Since the total length should also be zero if msg_iovlen is zero, it's sufficient to check the total length there and simply return if it's zero. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [TCP]: 'dst' can be NULL in tcp_rto_min()David S. Miller2007-08-31
|/ | | | | | Reported by Rick Jones. Signed-off-by: David S. Miller <davem@davemloft.net>
* [PKTGEN]: Remove write-only variable.Pavel Emelyanov2007-08-31
| | | | | | | | | | | The pktgen_thread.pid is set to current->pid and is never used after this. So remove this at all. Found during isolating the explicit pid/tgid usage. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Sukadev Bhattiprolu <sukadev@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: xt_tcpudp: fix wrong struct in udp_checkentryJesper Bengtsson2007-08-31
| | | | | | | | | It doesn't seem to have any effect on the x86 architecture but it does have effect on the Axis CRIS architecture. Signed-off-by: Jesper Bengtsson <jesper.bengtsson@axis.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED] sch_prio.c: remove duplicate call of tc_classify()Lucas Nussbaum2007-08-31
| | | | | | | | | | | | | | | | | | | | | | | | When CONFIG_NET_CLS_ACT is enabled, tc_classify() is called twice in prio_classify(). This causes "interesting" behaviour: with the setup below, packets are duplicated, sent twice to ifb0, and then loop in and out of ifb0. The patch uses the previously calculated return value in the switch, which is probably what Patrick had in mind in commit bdba91ec70fb5ccbdeb1c7068319adc6ea9e1a7d -- maybe Patrick can double-check this? -- example setup -- ifconfig ifb0 up tc qdisc add dev ifb0 root netem delay 2s tc qdisc add dev $ETH root handle 1: prio tc filter add dev $ETH parent 1: protocol ip prio 10 u32 \ match ip dst 172.24.110.6/32 flowid 1:1 \ action mirred egress redirect dev ifb0 ping -c1 172.24.110.6 Signed-off-by: Lucas Nussbaum <lucas.nussbaum@imag.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: Fix OOPS when bridging device without ethtool.Stephen Hemminger2007-08-31
| | | | | | | | | | | | | | | Bridge code calls ethtool to get speed. The conversion to using only ethtool_ops broke the case of devices without ethtool_ops. This is a new regression in 2.6.23. Rearranged the switch to a logical order, and use gcc initializer. Ps: speed should have been part of the network device structure from the start rather than burying it in ethtool. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Acked-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: Packets leaking out of disabled/blocked ports.Stephen Hemminger2007-08-31
| | | | | | | | | | | | | | This patch fixes some packet leakage in bridge. The bridging code was allowing forward table entries to be generated even if a device was being blocked. The fix is to not add forwarding database entries unless the port is active. The bug arose as part of the conversion to processing STP frames through normal receive path (in 2.6.17). Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Acked-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2007-08-31
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/vxy/lksctp-dev
| * SCTP: Fix to handle invalid parameter length correctlyWei Yongjun2007-08-30
| | | | | | | | | | | | | | | | | | | | | | | | If an INIT with invalid parameter length look like this: Parameter Type : 1 Parameter Length: 800 and not contain any payload, SCTP will ignore this parameter and send back a INIT-ACK. This patch is fix to handle this invalid parameter length correctly. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
| * SCTP: Abort on COOKIE-ECHO if backlog is exceeded.Vlad Yasevich2007-08-30
| | | | | | | | | | | | | | | | | | Currently we abort on the INIT chunk we our backlog is currenlty exceeded. Delay this about untill COOKIE-ECHO to give the user time to accept the socket. Also, make sure that we treat sk_max_backlog of 0 as no connections allowed. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
| * SCTP: Correctly disable listening when backlog is 0.Vlad Yasevich2007-08-30
| | | | | | | | Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
| * SCTP: Do not retransmit chunks that are newer then rtt.Vlad Yasevich2007-08-30
| | | | | | | | | | | | | | | | | | When performing a retransmit, do not include the chunk if it was sent less then 1 rtt ago. The reason is that we may receive the SACK very soon and wouldn't retransmit. Suggested by Randy Stewart. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
| * 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: Pick the correct port when binding to 0.Vlad Yasevich2007-08-30
| | | | | | | | | | | | | | | | | | sctp_bindx() allows the use of unspecified port. The problem is that every address we bind to ends up selecting a new port if the user specified port 0. This patch allows re-use of the already selected port when the port from bindx was 0. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
| * SCTP: Use net_ratelimit to suppress error messages print too fastWei Yongjun2007-08-30
| | | | | | | | | | | | | | | | | | | | | | | | | | 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: Fix to encode PROTOCOL VIOLATION error cause correctlyWei Yongjun2007-08-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PROTOCOL VIOLATION error cause in ABORT is bad encode when make abort chunk. When SCTP encode ABORT chunk with PROTOCOL VIOLATION error cause, it just add the error messages to PROTOCOL VIOLATION error cause, the rest four bytes(struct sctp_paramhdr) is just add to the chunk, not change the length of error cause. This cause the ABORT chunk to be a bad format. The chunk is like this: ABORT chunk Chunk type: ABORT (6) Chunk flags: 0x00 Chunk length: 72 (*1) Protocol violation cause Cause code: Protocol violation (0x000d) Cause length: 62 (*2) Cause information: 5468652063756D756C61746976652074736E2061636B2062... Cause padding: 0000 [Needless] 00030010 Chunk Length(*1) = 72 but Cause length(*2) only 62, not include the extend 4 bytes. ((72 - sizeof(chunk_hdr)) = 68) != (62 +3) / 4 * 4 Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
| * SCTP: Fix sctp_addto_chunk() to add pad with correct lengthWei Yongjun2007-08-30
| | | | | | | | | | | | | | | | | | At function sctp_addto_chunk(), it do pad before add payload to chunk if chunk length is not 4-byte alignment. But it do pad with a bad length. This patch fixed this probleam. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
| * SCTP: Assign stream sequence numbers to the entire messageVlad Yasevich2007-08-29
| | | | | | | | | | | | | | | | | | | | | | | | | | Currently we only assign the sequence number to a packet that we are about to transmit. This however breaks the Partial Reliability extensions, because it's possible for us to never transmit a packet, i.e. it expires before we get to send it. In such cases, if the message contained multiple SCTP fragments, and we did manage to send the first part of the message, the Stream sequence numbers would get into invalid state and cause receiver to stall. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
| * SCTP: properly clean up fragment and ordering queues during FWD-TSN.Vlad Yasevich2007-08-29
| | | | | | | | | | | | | | | | | | 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.>
* | [TCP]: Allow minimum RTO to be configurable via routing metrics.David S. Miller2007-08-31
| | | | | | | | | | | | | | | | Cell phone networks do link layer retransmissions and other things that cause unnecessary timeout retransmits. So allow the minimum RTO to be inflated per-route to deal with this. Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PKTGEN]: Fix multiqueue oops.Robert Olsson2007-08-28
|/ | | | | | | | | Initially pkt_dev can be NULL this causes netif_subqueue_stopped to oops. The patch below should cure it. But maybe the pktgen TX logic should be reworked to better support the new multiqueue support. Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
* [VLAN/BRIDGE]: Fix "skb_pull_rcsum - Fatal exception in interrupt"Evgeniy Polyakov2007-08-26
| | | | | | | | | | | | | | | | | | | | | | | | | I tried to preserve bridging code as it was before, but logic is quite strange - I think we should free skb on error, since it is already unshared and thus will just leak. Herbert Xu states: > + if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) > + goto out; If this happens it'll be a double-free on skb since we'll return NF_DROP which makes the caller free it too. We could return NF_STOLEN to prevent that but I'm not sure whether that's correct netfilter semantics. Patrick, could you please make a call on this? Patrick McHardy states: NF_STOLEN should work fine here. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix crash in dev_mc_sync()/dev_mc_unsync()Benjamin Thery2007-08-26
| | | | | | | | | | | This patch fixes a crash that may occur when the routine dev_mc_sync() deletes an address from the list it is currently going through. It saves the pointer to the next element before deleting the current one. The problem may also exist in dev_mc_unsync(). Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: is_power_of_2 in net/core/neighbour.cvignesh babu2007-08-26
| | | | | | | Replacing n & (n - 1) for power of 2 check by is_power_of_2(n) Signed-off-by: vignesh babu <vignesh.babu@wipro.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TCP]: Describe tcp_init_cwnd() thoroughly in a comment.David S. Miller2007-08-26
| | | | | | | | | | | People often get tripped up by this function and think that it does not implemented the prescribed algorithms from RFC2414 and RFC3390, even though it does. So add a comment to head off such misunderstandings in the future. Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix IP_ADD/DROP_MEMBERSHIP to handle only connectionlessFlavio Leitner2007-08-26
| | | | | | | | Fix IP[V6]_ADD_MEMBERSHIP and IP[V6]_DROP_MEMBERSHIP to return -EPROTO for connection oriented sockets. Signed-off-by: Flavio Leitner <fleitner@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPSEC] AH4: Update IPv4 options handling to conform to RFC 4302.Nick Bowler2007-08-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | In testing our ESP/AH offload hardware, I discovered an issue with how AH handles mutable fields in IPv4. RFC 4302 (AH) states the following on the subject: For IPv4, the entire option is viewed as a unit; so even though the type and length fields within most options are immutable in transit, if an option is classified as mutable, the entire option is zeroed for ICV computation purposes. The current implementation does not zero the type and length fields, resulting in authentication failures when communicating with hosts that do (i.e. FreeBSD). I have tested record route and timestamp options (ping -R and ping -T) on a small network involving Windows XP, FreeBSD 6.2, and Linux hosts, with one router. In the presence of these options, the FreeBSD and Linux hosts (with the patch or with the hardware) can communicate. The Windows XP host simply fails to accept these packets with or without the patch. I have also been trying to test source routing options (using traceroute -g), but haven't had much luck getting this option to work *without* AH, let alone with. Signed-off-by: Nick Bowler <nbowler@ellipticsemi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2007-08-24
|\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: fix bad error path in conversion routines 9p: remove deprecated v9fs_fid_lookup_remove() 9p: update maintainers and documentation 9p: fix use after free
| * 9p: fix bad error path in conversion routinesMariusz Kozlowski2007-08-23
| | | | | | | | | | | | | | | | When buf_check_overflow() returns != 0 we will hit kfree(ERR_PTR(err)) and it will not be happy about it. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * 9p: fix use after freeEric Van Hensbergen2007-08-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On 7/22/07, Adrian Bunk <bunk@stusta.de> wrote: The Coverity checker spotted the following use-after-free in net/9p/mux.c: <-- snip --> ... struct p9_conn *p9_conn_create(struct p9_transport *trans, int msize, unsigned char *extended) { ... if (!m->tagpool) { kfree(m); return ERR_PTR(PTR_ERR(m->tagpool)); } ... <-- snip --> Also spotted was a leak of the same structure further down in the function. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* | [IRDA] irda_nl_get_mode: always results in failureAndy Whitcroft2007-08-22
| | | | | | | | | | | | | | | | | | | | It seems an extraneous trailing ';' has slipped in to the error handling for a name registration failure causing the error path to trigger unconditionally. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IRDA]: Avoid a label defined but not used warning in irda_init()Jesper Juhl2007-08-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Easily avoidable compiler warnings bug me. Building irmod without CONFIG_SYSCTL currently results in : net/irda/irmod.c:132: warning: label 'out_err_2' defined but not used But that can easily be avoided by simply moving the label inside the existing "#ifdef CONFIG_SYSCTL" one line above it. This patch moves the label and buys us one less warning with no ill effects. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV6]: Fix kernel panic while send SCTP data with IP fragmentsWei Yongjun2007-08-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If ICMP6 message with "Packet Too Big" is received after send SCTP DATA, kernel panic will occur when SCTP DATA is send again. This is because of a bad dest address when call to skb_copy_bits(). The messages sequence is like this: Endpoint A Endpoint B <------- SCTP DATA (size=1432) ICMP6 message -------> (Packet Too Big pmtu=1280) <------- Resend SCTP DATA (size=1432) ------------kernel panic--------------- printing eip: c05be62a *pde = 00000000 Oops: 0002 [#1] SMP Modules linked in: scomm l2cap bluetooth ipv6 dm_mirror dm_mod video output sbs battery lp floppy sg i2c_piix4 i2c_core pcnet32 mii button ac parport_pc parport ide_cd cdrom serio_raw mptspi mptscsih mptbase scsi_transport_spi sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd CPU: 0 EIP: 0060:[<c05be62a>] Not tainted VLI EFLAGS: 00010282 (2.6.23-rc2 #1) EIP is at skb_copy_bits+0x4f/0x1ef eax: 000004d0 ebx: ce12a980 ecx: 00000134 edx: cfd5a880 esi: c8246858 edi: 00000000 ebp: c0759b14 esp: c0759adc ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068 Process swapper (pid: 0, ti=c0759000 task=c06d0340 task.ti=c0713000) Stack: c0759b88 c0405867 ce12a980 c8bff838 c789c084 00000000 00000028 cfd5a880 d09f1890 000005dc 0000007b ce12a980 cfd5a880 c8bff838 c0759b88 d09bc521 000004d0 fffff96c 00000200 00000100 c0759b50 cfd5a880 00000246 c0759bd4 Call Trace: [<c0405e1d>] show_trace_log_lvl+0x1a/0x2f [<c0405ecd>] show_stack_log_lvl+0x9b/0xa3 [<c040608d>] show_registers+0x1b8/0x289 [<c0406271>] die+0x113/0x246 [<c0625dbc>] do_page_fault+0x4ad/0x57e [<c0624642>] error_code+0x72/0x78 [<d09bc521>] ip6_output+0x8e5/0xab2 [ipv6] [<d09bcec1>] ip6_xmit+0x2ea/0x3a3 [ipv6] [<d0a3f2ca>] sctp_v6_xmit+0x248/0x253 [sctp] [<d0a3c934>] sctp_packet_transmit+0x53f/0x5ae [sctp] [<d0a34bf8>] sctp_outq_flush+0x555/0x587 [sctp] [<d0a34d3c>] sctp_retransmit+0xf8/0x10f [sctp] [<d0a3d183>] sctp_icmp_frag_needed+0x57/0x5b [sctp] [<d0a3ece2>] sctp_v6_err+0xcd/0x148 [sctp] [<d09cf1ce>] icmpv6_notify+0xe6/0x167 [ipv6] [<d09d009a>] icmpv6_rcv+0x7d7/0x849 [ipv6] [<d09be240>] ip6_input+0x1dc/0x310 [ipv6] [<d09be965>] ipv6_rcv+0x294/0x2df [ipv6] [<c05c3789>] netif_receive_skb+0x2d2/0x335 [<c05c5733>] process_backlog+0x7f/0xd0 [<c05c58f6>] net_rx_action+0x96/0x17e [<c042e722>] __do_softirq+0x64/0xcd [<c0406f37>] do_softirq+0x5c/0xac ======================= Code: 00 00 29 ca 89 d0 2b 45 e0 89 55 ec 85 c0 7e 35 39 45 08 8b 55 e4 0f 4e 45 08 8b 75 e0 8b 7d dc 89 c1 c1 e9 02 03 b2 a0 00 00 00 <f3> a5 89 c1 83 e1 03 74 02 f3 a4 29 45 08 0f 84 7b 01 00 00 01 EIP: [<c05be62a>] skb_copy_bits+0x4f/0x1ef SS:ESP 0068:c0759adc Kernel panic - not syncing: Fatal exception in interrupt Arnaldo says: ==================== Thanks! I'm to blame for this one, problem was introduced in: b0e380b1d8a8e0aca215df97702f99815f05c094 @@ -761,7 +762,7 @@ slow_path: /* * Copy a block of the IP datagram. */ - if (skb_copy_bits(skb, ptr, frag->h.raw, len)) + if (skb_copy_bits(skb, ptr, skb_transport_header(skb), len)) BUG(); left -= len; ==================== Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [SNAP]: Check packet length before readingHerbert Xu2007-08-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The snap_rcv code reads 5 bytes so we should make sure that we have 5 bytes in the head before proceeding. Based on diagnosis and fix by Evgeniy Polyakov, reported by Alan J. Wylie. Patch also kills the skb->sk assignment before kfree_skb since it's redundant. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [DCCP]: Allocation in atomic contextGerrit Renker2007-08-21
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the following bug reported in syslog: [ 4039.051658] BUG: sleeping function called from invalid context at /usr/src/davem-2.6/mm/slab.c:3032 [ 4039.051668] in_atomic():1, irqs_disabled():0 [ 4039.051670] INFO: lockdep is turned off. [ 4039.051674] [<c0104c0f>] show_trace_log_lvl+0x1a/0x30 [ 4039.051687] [<c0104d4d>] show_trace+0x12/0x14 [ 4039.051691] [<c0104d65>] dump_stack+0x16/0x18 [ 4039.051695] [<c011371e>] __might_sleep+0xaf/0xbe [ 4039.051700] [<c0157b66>] __kmalloc+0xb1/0xd0 [ 4039.051706] [<f090416f>] ccid2_hc_tx_alloc_seq+0x35/0xc3 [dccp_ccid2] [ 4039.051717] [<f09048d6>] ccid2_hc_tx_packet_sent+0x27f/0x2d9 [dccp_ccid2] [ 4039.051723] [<f085486b>] dccp_write_xmit+0x1eb/0x338 [dccp] [ 4039.051741] [<f085603d>] dccp_sendmsg+0x113/0x18f [dccp] [ 4039.051750] [<c03907fc>] inet_sendmsg+0x2e/0x4c [ 4039.051758] [<c033a47d>] sock_aio_write+0xd5/0x107 [ 4039.051766] [<c015abc1>] do_sync_write+0xcd/0x11c [ 4039.051772] [<c015b296>] vfs_write+0x118/0x11f [ 4039.051840] [<c015b932>] sys_write+0x3d/0x64 [ 4039.051845] [<c0103e7c>] syscall_call+0x7/0xb [ 4039.051848] ======================= The problem was that GFP_KERNEL was used; fixed by using gfp_any(). Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* missing return in bridge sysfs codeAl Viro2007-08-19
| | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [IPv6]: Invalid semicolon after if statementIlpo Järvinen2007-08-15
| | | | | | | | | | A similar fix to netfilter from Eric Dumazet inspired me to look around a bit by using some grep/sed stuff as looking for this kind of bugs seemed easy to automate. This is one of them I found where it looks like this semicolon is not valid. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
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