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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-02-23
|\ | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: net: amend the fix for SO_BSDCOMPAT gsopt infoleak netns: build fix for net_alloc_generic
| * net: amend the fix for SO_BSDCOMPAT gsopt infoleakEugene Teo2009-02-23
| | | | | | | | | | | | | | | | | | | | | | | | | | The fix for CVE-2009-0676 (upstream commit df0bca04) is incomplete. Note that the same problem of leaking kernel memory will reappear if someone on some architecture uses struct timeval with some internal padding (for example tv_sec 64-bit and tv_usec 32-bit) --- then, you are going to leak the padded bytes to userspace. Signed-off-by: Eugene Teo <eugeneteo@kernel.sg> Reported-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * netns: build fix for net_alloc_genericClemens Noss2009-02-23
| | | | | | | | | | | | | | | | net_alloc_generic was defined in #ifdef CONFIG_NET_NS, but used unconditionally. Move net_alloc_generic out of #ifdef. Signed-off-by: Clemens Noss <cnoss@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-02-23
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: netns: fix double free at netns creation veth : add the set_mac_address capability sunlance: Beyond ARRAY_SIZE of ib->btx_ring sungem: another error printed one too early ISDN: fix sc/shmem printk format warning SMSC: timeout reaches -1 smsc9420: handle magic field of ethtool_eeprom sundance: missing parentheses? smsc9420: fix another postfixed timeout wimax/i2400m: driver loads firmware v1.4 instead of v1.3 vlan: Update skb->mac_header in __vlan_put_tag(). cxgb3: Add support for PCI ID 0x35. tcp: remove obsoleted comment about different passes TG3: &&/|| confusion ATM: misplaced parentheses? net/mv643xx: don't disable the mib timer too early and lock properly net/mv643xx: use GFP_ATOMIC while atomic atl1c: Atheros L1C Gigabit Ethernet driver net: Kill skb_truesize_check(), it only catches false-positives. net: forcedeth: Fix wake-on-lan regression
| * netns: fix double free at netns creationDaniel Lezcano2009-02-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fix a double free when a network namespace fails. The previous code does a kfree of the net_generic structure when one of the init subsystem initialization fails. The 'setup_net' function does kfree(ng) and returns an error. The caller, 'copy_net_ns', call net_free on error, and this one calls kfree(net->gen), making this pointer freed twice. This patch make the code symetric, the net_alloc does the net_generic allocation and the net_free frees the net_generic. Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
| * tcp: remove obsoleted comment about different passesIlpo Järvinen2009-02-18
| | | | | | | | | | | | | | This is obsolete since the passes got combined. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: Kill skb_truesize_check(), it only catches false-positives.David S. Miller2009-02-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | A long time ago we had bugs, primarily in TCP, where we would modify skb->truesize (for TSO queue collapsing) in ways which would corrupt the socket memory accounting. skb_truesize_check() was added in order to try and catch this error more systematically. However this debugging check has morphed into a Frankenstein of sorts and these days it does nothing other than catch false-positives. Signed-off-by: David S. Miller <davem@davemloft.net>
* | cipso: Fix documentation commentPaul Moore2009-02-22
|/ | | | | | | | | | | | | The CIPSO protocol engine incorrectly stated that the FIPS-188 specification could be found in the kernel's Documentation directory. This patch corrects that by removing the comment and directing users to the FIPS-188 documented hosted online. For the sake of completeness I've also included a link to the CIPSO draft specification on the NetLabel website. Thanks to Randy Dunlap for spotting the error and letting me know. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* wimax: fix oops in wimax_dev_get_by_genl_info() when looking up non-wimax ifaceInaky Perez-Gonzalez2009-02-12
| | | | | | | | | | | | | When a non-wimax interface is looked up by the stack, a bad pointer is returned when the looked-up interface is not found in the list (of registered WiMAX interfaces). This causes an oops in the caller when trying to use the pointer. Fix by properly setting the pointer to NULL if we don't exit from the list_for_each() with a found entry. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: 4 bytes kernel memory disclosure in SO_BSDCOMPAT gsopt try #2Clément Lecigne2009-02-12
| | | | | | | | | | | | | | | | | | | | | | | | | In function sock_getsockopt() located in net/core/sock.c, optval v.val is not correctly initialized and directly returned in userland in case we have SO_BSDCOMPAT option set. This dummy code should trigger the bug: int main(void) { unsigned char buf[4] = { 0, 0, 0, 0 }; int len; int sock; sock = socket(33, 2, 2); getsockopt(sock, 1, SO_BSDCOMPAT, &buf, &len); printf("%x%x%x%x\n", buf[0], buf[1], buf[2], buf[3]); close(sock); } Here is a patch that fix this bug by initalizing v.val just after its declaration. Signed-off-by: Clément Lecigne <clement.lecigne@netasq.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mac80211: restrict to AP in outgoing interface heuristicJohannes Berg2009-02-11
| | | | | | | | | | | | We try to find the correct outgoing interface for injected frames based on the TA, but since this is a hack for hostapd 11w, restrict the heuristic to AP mode interfaces. At some point we'll add the ability to give an interface index in radiotap or so and just remove this heuristic again. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: stable@kernel.org [2.6.28.x] Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Phonet: do not compute unused valueRémi Denis-Courmont2009-02-10
| | | | | Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Phonet: fix double free in GPRS outbound packet error pathRémi Denis-Courmont2009-02-10
| | | | | Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bridge: Fix LRO crash with tunHerbert Xu2009-02-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > Kernel BUG at drivers/net/tun.c:444 > invalid opcode: 0000 [1] SMP > last sysfs file: /class/net/lo/ifindex > CPU 0 > Modules linked in: tun ipt_MASQUERADE iptable_nat ip_nat xt_state ip_conntrack > nfnetlink ipt_REJECT xt_tcpudp iptable_filter d > Pid: 6912, comm: qemu-kvm Tainted: G 2.6.18-128.el5 #1 > RIP: 0010:[<ffffffff886f57b0>] [<ffffffff886f57b0>] > :tun:tun_chr_readv+0x2b1/0x3a6 > RSP: 0018:ffff8102202c5e48 EFLAGS: 00010246 > RAX: 0000000000000000 RBX: ffff8102202c5e98 RCX: 0000000004010000 > RDX: ffff810227063680 RSI: ffff8102202c5e9e RDI: ffff8102202c5e92 > RBP: 0000000000010ff6 R08: 0000000000000000 R09: 0000000000000001 > R10: ffff8102202c5e94 R11: 0000000000000202 R12: ffff8102275357c0 > R13: ffff81022755e500 R14: 0000000000000000 R15: ffff8102202c5ef8 > FS: 00002ae4398db980(0000) GS:ffffffff803ac000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > CR2: 00002ae4ab514000 CR3: 0000000221344000 CR4: 00000000000026e0 > Process qemu-kvm (pid: 6912, threadinfo ffff8102202c4000, task > ffff81022e58d820) > Stack: 00000000498735cb ffff810229d1a3c0 0000000000000000 ffff81022e58d820 > ffffffff8008a461 ffff81022755e528 ffff81022755e528 ffffffff8009f925 > 000005ea05ea0000 ffff8102209d0000 00001051143e1600 ffffffff8003c00e > Call Trace: > [<ffffffff8008a461>] default_wake_function+0x0/0xe > [<ffffffff8009f925>] enqueue_hrtimer+0x55/0x70 > [<ffffffff8003c00e>] hrtimer_start+0xbc/0xce > [<ffffffff886f58bf>] :tun:tun_chr_read+0x1a/0x1f > [<ffffffff8000b3f3>] vfs_read+0xcb/0x171 > [<ffffffff800117d4>] sys_read+0x45/0x6e > [<ffffffff8005d116>] system_call+0x7e/0x83 > > > Code: 0f 0b 68 40 62 6f 88 c2 bc 01 f6 42 0a 08 74 0c 80 4c 24 41 > RIP [<ffffffff886f57b0>] :tun:tun_chr_readv+0x2b1/0x3a6 > RSP <ffff8102202c5e48> > <0>Kernel panic - not syncing: Fatal exception This crashed when an LRO packet generated by bnx2x reached a tun device through the bridge. We're supposed to drop it at the bridge. However, because the check was placed in br_forward instead of __br_forward, it's only effective if we are sending the packet through a single port. This patch fixes it by moving the check into __br_forward. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* IPv6: fix to set device name when new IPv6 over IPv6 tunnel device is created.Noriaki TAKAMIYA2009-02-09
| | | | | | | | | When the user creates IPv6 over IPv6 tunnel, the device name created by the kernel isn't set to t->parm.name, which is referred as the result of ioctl(). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: xt_sctp: sctp chunk mapping doesn't workQu Haoran2009-02-09
| | | | | | | | | | | When user tries to map all chunks given in argument, kernel works on a copy of the chunkmap, but at the end it doesn't check the copy, but the orginal one. Signed-off-by: Qu Haoran <haoran.qu@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: ctnetlink: fix echo if not subscribed to any multicast groupPablo Neira Ayuso2009-02-09
| | | | | | | | | | | This patch fixes echoing if the socket that has sent the request to create/update/delete an entry is not subscribed to any multicast group. With the current code, ctnetlink would not send the echo message via unicast as nfnetlink_send() would be skip. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: ctnetlink: allow changing NAT sequence adjustment in creationPablo Neira Ayuso2009-02-09
| | | | | | | | | | | | | | This patch fixes an inconsistency in the current ctnetlink code since NAT sequence adjustment bit can only be updated but not set in the conntrack entry creation. This patch is used by conntrackd to successfully recover newly created entries that represent connections with helpers and NAT payload mangling. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: nf_conntrack_ipv6: don't track ICMPv6 negotiation messageEric Leblond2009-02-09
| | | | | | | | | | | | This patch removes connection tracking handling for ICMPv6 messages related to Stateless Address Autoconfiguration, MLD, and MLDv2. They can not be tracked because they are massively using multicast (on pre-defined address). But they are not invalid and should not be detected as such. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: fix tuple inversion for Node information requestEric Leblond2009-02-09
| | | | | | | | | | | The patch fixes a typo in the inverse mapping of Node Information request. Following draft-ietf-ipngwg-icmp-name-lookups-09, "Querier" sends a type 139 (ICMPV6_NI_QUERY) packet to "Responder" which answer with a type 140 (ICMPV6_NI_REPLY) packet. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* 9p: fix endian issues [attempt 3]Eric Van Hensbergen2009-02-07
| | | | | | | | | | | | When the changes were done to the protocol last release, some endian bugs crept in. This patch fixes those endian problems and has been verified to run on 32/64 bit and x86/ppc architectures. This version of the patch incorporates the correct annotations for endian variables. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net_dma: call dmaengine_get only if NET_DMA enabledDavid S. Miller2009-02-07
| | | | | | | | | | | | | | Based upon a patch from Atsushi Nemoto <anemo@mba.ocn.ne.jp> -------------------- The commit 649274d993212e7c23c0cb734572c2311c200872 ("net_dma: acquire/release dma channels on ifup/ifdown") added unconditional call of dmaengine_get() to net_dma. The API should be called only if NET_DMA was enabled. -------------------- Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Dan Williams <dan.j.williams@intel.com>
* RxRPC: Fix a potential NULL dereferenceDavid Howells2009-02-07
| | | | | | | | | | | | Fix a potential NULL dereference bug during error handling in rxrpc_kernel_begin_call(), whereby rxrpc_put_transport() may be handed a NULL pointer. This was found with a code checker (http://repo.or.cz/w/smatch.git/). Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* udp: Fix potential wrong ip_hdr(skb) pointersJesper Dangaard Brouer2009-02-06
| | | | | | | | | | | | | Like the UDP header fix, pskb_may_pull() can potentially alter the SKB buffer. Thus the saddr and daddr, pointers may point to the old skb->data buffer. I haven't seen corruptions, as its only seen if the old skb->data buffer were reallocated by another user and written into very quickly (or poison'd by SLAB debugging). Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
* neigh: some entries can be skipped during dumpingGautam Kachroo2009-02-06
| | | | | | | | | | | | | neightbl_dump_info and neigh_dump_table can skip entries if the *fill*info functions return an error. This results in an incomplete dump ((invoked by netlink requests for RTM_GETNEIGHTBL or RTM_GETNEIGH) nidx and idx should not be incremented if the current entry was not placed in the output buffer Signed-off-by: Gautam Kachroo <gk@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Disallow rediculious flowlabel option sizes.David S. Miller2009-02-06
| | | | | | | | | Just like PKTINFO, limit the options area to 64K. Based upon report by Eric Sesterhenn and analysis by Roland Dreier. Signed-off-by: David S. Miller <davem@davemloft.net>
* Revert "tcp: Always set urgent pointer if it's beyond snd_nxt"David S. Miller2009-02-05
| | | | | | | | This reverts commit 64ff3b938ec6782e6585a83d5459b98b0c3f6eb8. Jeff Chua reports that it breaks rlogin for him. Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Copy cork options in ip6_append_dataHerbert Xu2009-02-05
| | | | | | | | | As the options passed to ip6_append_data may be ephemeral, we need to duplicate it for corking. This patch applies the simplest fix which is to memdup all the relevant bits. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* udp: Fix UDP short packet false positiveJesper Dangaard Brouer2009-02-05
| | | | | | | | | | | | | The UDP header pointer assignment must happen after calling pskb_may_pull(). As pskb_may_pull() can potentially alter the SKB buffer. This was exposted by running multicast traffic through the NIU driver, as it won't prepull the protocol headers into the linear area on receive. Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
* sunrpc: fix rdma dependenciesRandy Dunlap2009-02-03
| | | | | | | | | | | | | | | | | | | | | | | | | Fix sunrpc/rdma build dependencies. Survives 12 build combinations of INET, IPV6, SUNRPC, INFINIBAND, and INFINIBAND_ADDR_TRANS. ERROR: "rdma_destroy_id" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined! ERROR: "rdma_connect" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined! ERROR: "rdma_destroy_qp" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined! ERROR: "rdma_create_id" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined! ERROR: "rdma_create_qp" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined! ERROR: "rdma_resolve_route" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined! ERROR: "rdma_disconnect" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined! ERROR: "rdma_resolve_addr" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined! ERROR: "rdma_accept" [net/sunrpc/xprtrdma/svcrdma.ko] undefined! ERROR: "rdma_destroy_id" [net/sunrpc/xprtrdma/svcrdma.ko] undefined! ERROR: "rdma_listen" [net/sunrpc/xprtrdma/svcrdma.ko] undefined! ERROR: "rdma_create_id" [net/sunrpc/xprtrdma/svcrdma.ko] undefined! ERROR: "rdma_create_qp" [net/sunrpc/xprtrdma/svcrdma.ko] undefined! ERROR: "rdma_bind_addr" [net/sunrpc/xprtrdma/svcrdma.ko] undefined! ERROR: "rdma_disconnect" [net/sunrpc/xprtrdma/svcrdma.ko] undefined! Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-02-03
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-01-31
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: igb: fix link reporting when using sgmii igb: prevent skb_over panic w/ mtu smaller than 1K igb: Fix DCA errors and do not use context index for 82576 ipv6: compile fix for ip6mr.c packet: Avoid lock_sock in mmap handler sfc: Replace stats_enabled flag with a disable count sfc: SFX7101/SFT9001: Fix AN advertisements sfc: SFT9001: Always enable XNP exchange on SFT9001 rev B sfc: Update board info for hardware monitor on SFN4111T-R5 and later sfc: Test for PHYXS faults whenever we cannot test link state bits sfc: Reinitialise the PHY completely in case of a PHY or NIC reset sfc: Fix post-reset MAC selection sfc: SFN4111T: Fix GPIO sharing between I2C and FLASH_CFG_1 sfc: SFT9001: Fix speed reporting in 1G PHY loopback sfc: SFX7101: Remove workaround for bad link training sfc: SFT9001: Enable robust link training sky2: fix hard hang with netconsoling and iface going up
| * \ Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-01-30
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits) tulip: fix 21142 with 10Mbps without negotiation drivers/net/skfp: if !capable(CAP_NET_ADMIN): inverted logic gianfar: Fix Wake-on-LAN support smsc911x: timeout reaches -1 smsc9420: fix interrupt signalling test failures ucc_geth: Change uec phy id to the same format as gianfar's wimax: fix build issue when debugfs is disabled netxen: fix memory leak in drivers/net/netxen_nic_init.c tun: Add some missing TUN compat ioctl translations. ipv4: fix infinite retry loop in IP-Config net: update documentation ip aliases net: Fix OOPS in skb_seq_read(). net: Fix frag_list handling in skb_seq_read netxen: revert jumbo ringsize ath5k: fix locking in ath5k_config cfg80211: print correct intersected regulatory domain cfg80211: Fix sanity check on 5 GHz when processing country IE iwlwifi: fix kernel oops when ucode DMA memory allocation failure rtl8187: Fix error in setting OFDM power settings for RTL8187L mac80211: remove Michael Wu as maintainer ...
| * | | nfs: note that CONFIG_SUNRPC_XPRT_RDMA turns on server side support tooJ. Bruce Fields2009-01-27
| | | | | | | | | | | | | | | | | | | | | | | | We forgot to update this when adding server-side support. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | | | udp: increments sk_drops in __udp_queue_rcv_skb()Eric Dumazet2009-02-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 93821778def10ec1e69aa3ac10adee975dad4ff3 (udp: Fix rcv socket locking) accidentally removed sk_drops increments for UDP IPV4 sockets. This field can be used to detect incorrect sizing of socket receive buffers. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | net: packet socket packet_lookup_frame fixSebastiano Di Paola2009-02-01
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | packet_lookup_frames() fails to get user frame if current frame header status contains extra flags. This is due to the wrong assumption on the operators precedence during frame status tests. Fixed by forcing the right operators precedence order with explicit brackets. Signed-off-by: Paolo Abeni <paolo.abeni@gmail.com> Signed-off-by: Sebastiano Di Paola <sebastiano.dipaola@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | ipv6: compile fix for ip6mr.cDave Jones2009-01-31
| | | | | | | | | | | | | | | | | | | | | | | | net/ipv6/ip6mr.c: In function 'pim6_rcv': net/ipv6/ip6mr.c:368: error: implicit declaration of function 'csum_ipv6_magic' Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | packet: Avoid lock_sock in mmap handlerHerbert Xu2009-01-30
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | As the mmap handler gets called under mmap_sem, and we may grab mmap_sem elsewhere under the socket lock to access user data, we should avoid grabbing the socket lock in the mmap handler. Since the only thing we care about in the mmap handler is for pg_vec* to be invariant, i.e., to exclude packet_set_ring, we can achieve this by simply using a new mutex. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Martin MOKREJŠ <mmokrejs@ribosome.natur.cuni.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
* | wimax: fix build issue when debugfs is disabledInaky Perez-Gonzalez2009-01-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As reported by Toralf Förster and Randy Dunlap. - http://linuxwimax.org/pipermail/wimax/2009-January/000460.html - http://lkml.org/lkml/2009/1/29/279 The definitions needed for the wimax stack and i2400m driver debug infrastructure was, by mistake, compiled depending on CONFIG_DEBUG_FS (by them being placed in the debugfs.c files); thus the build broke in 2.6.29-rc3 when debugging was enabled (CONFIG_WIMAX_DEBUG) and DEBUG_FS was disabled. These definitions are always needed if debug is enabled at compile time (independently of DEBUG_FS being or not enabled), so moving them to a file that is always compiled fixes the issue. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipv4: fix infinite retry loop in IP-ConfigBenjamin Zores2009-01-29
| | | | | | | | | | Signed-off-by: Benjamin Zores <benjamin.zores@alcatel-lucent.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Fix OOPS in skb_seq_read().Shyam Iyer2009-01-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It oopsd for me in skb_seq_read. addr2line said it was linux-2.6/net/core/skbuff.c:2228, which is this line: while (st->frag_idx < skb_shinfo(st->cur_skb)->nr_frags) { I added some printks in there and it looks like we hit this: } else if (st->root_skb == st->cur_skb && skb_shinfo(st->root_skb)->frag_list) { st->cur_skb = skb_shinfo(st->root_skb)->frag_list; st->frag_idx = 0; goto next_skb; } Actually I did some testing and added a few printks and found that the st->cur_skb->data was 0 and hence the ptr used by iscsi_tcp was null. This caused the kernel panic. if (abs_offset < block_limit) { - *data = st->cur_skb->data + abs_offset; + *data = st->cur_skb->data + (abs_offset - st->stepped_offset); I enabled the debug_tcp and with a few printks found that the code did not go to the next_skb label and could find that the sequence being followed was this - It hit this if condition - if (st->cur_skb->next) { st->cur_skb = st->cur_skb->next; st->frag_idx = 0; goto next_skb; And so, now the st pointer is shifted to the next skb whereas actually it should have hit the second else if first since the data is in the frag_list. else if (st->root_skb == st->cur_skb && skb_shinfo(st->root_skb)->frag_list) { st->cur_skb = skb_shinfo(st->root_skb)->frag_list; goto next_skb; } Reversing the two conditions the attached patch fixes the issue for me on top of Herbert's patches. Signed-off-by: Shyam Iyer <shyam_iyer@dell.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Fix frag_list handling in skb_seq_readHerbert Xu2009-01-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The frag_list handling was broken in skb_seq_read: 1) We didn't add the stepped offset when looking at the head are of fragments other than the first. 2) We didn't take the stepped offset away when setting the data pointer in the head area. 3) The frag index wasn't reset. This patch fixes both issues. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2009-01-29
|\ \ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| * | cfg80211: print correct intersected regulatory domainLuis R. Rodriguez2009-01-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When CONFIG_CFG80211_REG_DEBUG is enabled and an intersection occurs we are printing the regulatory domain passed by CRDA and indicating its the intersected regulatory domain. Lets fix this and print the intersection as originally intended. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | cfg80211: Fix sanity check on 5 GHz when processing country IELuis R. Rodriguez2009-01-29
| |/ | | | | | | | | | | | | | | | | | | | | | | | | This fixes two issues with the sanity check loop when processing the country IE: 1. Do not use frequency for the current subband channel check, this was a big fat typo. 2. Apply the 5 GHz 4-channel steps when considering max channel on each subband as was done with a recent patch. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ipv6: Make mc_forwarding sysctl read-only.David S. Miller2009-01-28
| | | | | | | | | | | | | | | | The kernel manages this value internally, as necessary, as VIFs are added/removed and as multicast routers are registered and deregistered. Signed-off-by: David S. Miller <davem@davemloft.net>
* | IPv6: Fix multicast routing bugs.Thomas Goff2009-01-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch addresses the IPv6 multicast routing issues described below. It was tested with XORP 1.4/1.5 as the IPv6 PIM-SM routing daemon against FreeBSD peers. net/ipv6/ip6_input.c: - Don't try to forward link-local multicast packets. - Don't reset skb2->dev before calling ip6_mr_input() so packets can be identified as coming from the PIM register vif properly. net/ipv6/ip6mr.c: - Fix incoming PIM register messages processing: * The IPv6 pseudo-header should be included when checksumming PIM messages (RFC 4601 section 4.9; RFC 3973 section 4.7.1). * Packets decapsulated from PIM register messages should have skb->protocol ETH_P_IPV6. - Enable/disable IPv6 multicast forwarding on the corresponding interface when a routing daemon adds/removes a multicast virtual interface. - Remove incorrect skb_pull() to fix userspace signaling. - Enable/disable global IPv6 multicast forwarding when an IPv6 multicast routing socket is opened/closed. net/ipv6/route.c: - Don't use strict routing logic for packets decapsulated from PIM register messages (similar to disabling rp_filter for the IPv4 case). Signed-off-by: Thomas Goff <thomas.goff@boeing.com> Reviewed-by: Fred Templin <fred.l.templin@boeing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: fix xfrm reverse flow lookup for icmp6Jiri Pirko2009-01-28
| | | | | | | | | | | | | | | | | | | | This patch fixes the xfrm reverse flow lookup for icmp6 so that icmp6 packets don't get lost over ipsec tunnels. Similar patch is in RHEL5 kernel for a quite long time and I do not see why it isn't in mainline. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | tcp: Fix length tcp_splice_data_recv passes to skb_splice_bits.Dimitris Michailidis2009-01-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tcp_splice_data_recv has two lengths to consider: the len parameter it gets from tcp_read_sock, which specifies the amount of data in the skb, and rd_desc->count, which is the amount of data the splice caller still wants. Currently it passes just the latter to skb_splice_bits, which then splices min(rd_desc->count, skb->len - offset) bytes. Most of the time this is fine, except when the skb contains urgent data. In that case len goes only up to the urgent byte and is less than skb->len - offset. By ignoring len tcp_splice_data_recv may a) splice data tcp_read_sock told it not to, b) return to tcp_read_sock a value > len. Now, tcp_read_sock doesn't handle used > len and leaves the socket in a bad state (both sk_receive_queue and copied_seq are bad at that point) resulting in duplicated data and corruption. Fix by passing min(rd_desc->count, len) to skb_splice_bits. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Acked-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | udp: optimize bind(0) if many ports are in useEric Dumazet2009-01-27
|/ | | | | | | | | | | | | | | | | | | | | commit 9088c5609584684149f3fb5b065aa7f18dcb03ff (udp: Improve port randomization) introduced a regression for UDP bind() syscall to null port (getting a random port) in case lot of ports are already in use. This is because we do about 28000 scans of very long chains (220 sockets per chain), with many spin_lock_bh()/spin_unlock_bh() calls. Fix this using a bitmap (64 bytes for current value of UDP_HTABLE_SIZE) so that we scan chains at most once. Instead of 250 ms per bind() call, we get after patch a time of 2.9 ms Based on a report from Vitaly Mayatskikh Reported-by: Vitaly Mayatskikh <v.mayatskih@gmail.com> Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Tested-by: Vitaly Mayatskikh <v.mayatskih@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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