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* rc80211_minstrel: fix contention window calculationPavel Roskin2009-09-16
| | | | | | | | | | | The contention window is supposed to be a power of two minus one, i.e. 15, 31, 63, 127... minstrel_rate_init() forgets to subtract 1, so the sequence becomes 15, 32, 66, 134... Bug reported by Dan Halperin <dhalperi@cs.washington.edu> Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: minimal error handling for wext-compat freq scanningHolger Schurig2009-09-14
| | | | | Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: use cfg80211_wext_freq() for freq conversionHolger Schurig2009-09-14
| | | | | | | | | WEXT's "struct iw_freq" can also be used to handle a channel. This patch now uses cfg80211_wext_freq() instead of hand-converting the frequency. That allows user-space to specify channels as well, like with SIOCSIWFREQ. Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Phonet: back-end for autoconfigured addressesRémi Denis-Courmont2009-09-11
| | | | | | | | | | In some cases, the network device driver knows what layer-3 address the device should have. This adds support for the Phonet stack to automatically request from the driver and add that address to the network device. Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Phonet: fix netlink address dump error handlingRémi Denis-Courmont2009-09-11
| | | | | Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Add IFA_F_DADFAILED flagBrian Haley2009-09-11
| | | | | | | | | | | | | Add IFA_F_DADFAILED flag to denote an IPv6 address that has failed Duplicate Address Detection, that way tools like /sbin/ip can be more informative. 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 2001:db8::1/64 scope global tentative dadfailed valid_lft forever preferred_lft forever Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Add DEVTYPE support for Ethernet based devicesMarcel Holtmann2009-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Ethernet framing is used for a lot of devices these days. Most prominent are WiFi and WiMAX based devices. However for userspace application it is important to classify these devices correctly and not only see them as Ethernet devices. The daemons like HAL, DeviceKit or even NetworkManager with udev support tries to do the classification in userspace with a lot trickery and extra system calls. This is not good and actually reaches its limitations. Especially since the kernel does know the type of the Ethernet device it is pretty stupid. To solve this problem the underlying device type needs to be set and then the value will be exported as DEVTYPE via uevents and available within udev. # cat /sys/class/net/wlan0/uevent DEVTYPE=wlan INTERFACE=wlan0 IFINDEX=5 This is similar to subsystems like USB and SCSI that distinguish between hosts, devices, disks, partitions etc. The new SET_NETDEV_DEVTYPE() is a convenience helper to set the actual device type. All device types are free form, but for convenience the same strings as used with RFKILL are choosen. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: force bridge module(s) to be GPLStephen Hemminger2009-09-11
| | | | | | | | | | The only valid usage for the bridge frame hooks are by a GPL components (such as the bridge module). The kernel should not leave a crack in the door for proprietary networking stacks to slip in. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Subject: [PATCH] appletalk: Fix skb leak when ipddp interface is not loadedArnaldo Carvalho de Melo2009-09-11
| | | | | | | | | | | | And also do a better job of returning proper NET_{RX,XMIT}_ values. Based on a patch and suggestions by Mark Smith. This fixes CVE-2009-2903 Reported-by: Mark Smith <lk-netdev@lk-netdev.nosense.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: unix: fix sending fds in multiple buffersMiklos Szeredi2009-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kalle Olavi Niemitalo reported that: "..., when one process calls sendmsg once to send 43804 bytes of data and one file descriptor, and another process then calls recvmsg three times to receive the 16032+16032+11740 bytes, each of those recvmsg calls returns the file descriptor in the ancillary data. I confirmed this with strace. The behaviour differs from Linux 2.6.26, where reportedly only one of those recvmsg calls (I think the first one) returned the file descriptor." This bug was introduced by a patch from me titled "net: unix: fix inflight counting bug in garbage collector", commit 6209344f5. And the reason is, quoting Kalle: "Before your patch, unix_attach_fds() would set scm->fp = NULL, so that if the loop in unix_stream_sendmsg() ran multiple iterations, it could not call unix_attach_fds() again. But now, unix_attach_fds() leaves scm->fp unchanged, and I think this causes it to be called multiple times and duplicate the same file descriptors to each struct sk_buff." Fix this by introducing a flag that is cleared at the start and set when the fds attached to the first buffer. The resulting code should work equivalently to the one on 2.6.26. Reported-by: Kalle Olavi Niemitalo <kon@iki.fi> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-09-10
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
| * netfilter: ebt_ulog: fix checkentry return valuePatrick McHardy2009-09-01
| | | | | | | | | | | | | | | | Commit 19eda87 (netfilter: change return types of check functions for Ebtables extensions) broke the ebtables ulog module by missing a return value conversion. Signed-off-by: Patrick McHardy <kaber@trash.net>
| * IPVS: Add handling of incoming ICMPV6 messagesJulius Volz2009-08-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add handling of incoming ICMPv6 messages. This follows the handling of IPv4 ICMP messages. Amongst ther things this problem allows IPVS to behave sensibly when an ICMPV6_PKT_TOOBIG message is received: This message is received when a realserver sends a packet >PMTU to the client. The hop on this path with insufficient MTU will generate an ICMPv6 Packet Too Big message back to the VIP. The LVS server receives this message, but the call to the function handling this has been missing. Thus, IPVS fails to forward the message to the real server, which then does not adjust the path MTU. This patch adds the missing call to ip_vs_in_icmp_v6() in ip_vs_in() to handle this situation. Thanks to Rob Gallagher from HEAnet for reporting this issue and for testing this patch in production (with direct routing mode). [horms@verge.net.au: tweaked changelog] Signed-off-by: Julius Volz <julius.volz@gmail.com> Tested-by: Rob Gallagher <robert.gallagher@heanet.ie> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: ip6t_eui: fix read outside array boundsPatrick McHardy2009-08-31
| | | | | | | | | | | | | | | | | | Use memcmp() instead of open coded comparison that reads one byte past the intended end. Based on patch from Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: nf_conntrack: netns fix re reliable conntrack event deliveryAlexey Dobriyan2009-08-31
| | | | | | | | | | | | | | | | Conntracks in netns other than init_net dying list were never killed. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * ipvs: Use atomic operations atomiclySimon Horman2009-08-31
| | | | | | | | | | | | | | | | | | | | A pointed out by Shin Hong, IPVS doesn't always use atomic operations in an atomic manner. While this seems unlikely to be manifest in strange behaviour, it seems appropriate to clean this up. Cc: shin hong <hongshin@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: nfnetlink: constify message attributes and headersPatrick McHardy2009-08-25
| | | | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netlink: constify nlmsghdr argumentsPatrick McHardy2009-08-25
| | | | | | | | | | | | | | | | Consitfy nlmsghdr arguments to a couple of functions as preparation for the next patch, which will constify the netlink message data in all nfnetlink users. Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: nf_conntrack: log packets dropped by helpersPatrick McHardy2009-08-25
| | | | | | | | | | | | | | | | Log packets dropped by helpers using the netfilter logging API. This is useful in combination with nfnetlink_log to analyze those packets in userspace for debugging. Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: bridge: refcount fixEric Dumazet2009-08-24
| | | | | | | | | | | | | | | | | | | | | | | | | | commit f216f082b2b37c4943f1e7c393e2786648d48f6f ([NETFILTER]: bridge netfilter: deal with martians correctly) added a refcount leak on in_dev. Instead of using in_dev_get(), we can use __in_dev_get_rcu(), as netfilter hooks are running under rcu_read_lock(), as pointed by Patrick. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: nf_nat: fix inverted logic for persistent NAT mappingsMaximilian Engelhardt2009-08-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kernel 2.6.30 introduced a patch [1] for the persistent option in the netfilter SNAT target. This is exactly what we need here so I had a quick look at the code and noticed that the patch is wrong. The logic is simply inverted. The patch below fixes this. Also note that because of this the default behavior of the SNAT target has changed since kernel 2.6.30 as it now ignores the destination IP in choosing the source IP for nating (which should only be the case if the persistent option is set). [1] http://git.eu.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=98d500d66cb7940747b424b245fc6a51ecfbf005 Signed-off-by: Maximilian Engelhardt <maxi@daemonizer.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * netfilter: xtables: mark initial tables constantJan Engelhardt2009-08-24
| | | | | | | | | | | | | | The inputted table is never modified, so should be considered const. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * Merge branch 'master' of git://dev.medozas.de/linuxPatrick McHardy2009-08-10
| |\
| | * netfilter: xtables: check for standard verdicts in policiesJan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the second check that Rusty wanted to have a long time ago. :-) Base chain policies must have absolute verdicts that cease processing in the table, otherwise rule execution may continue in an unexpected spurious fashion (e.g. next chain that follows in memory). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: check for unconditionality of policiesJan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a check that iptables's original author Rusty set forth in a FIXME comment. Underflows in iptables are better known as chain policies, and are required to be unconditional or there would be a stochastical chance for the policy rule to be skipped if it does not match. If that were to happen, rule execution would continue in an unexpected spurious fashion. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: ignore unassigned hooks in check_entry_size_and_hooksJan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "hook_entry" and "underflow" array contains values even for hooks not provided, such as PREROUTING in conjunction with the "filter" table. Usually, the values point to whatever the next rule is. For the upcoming unconditionality and underflow checking patches however, we must not inspect that arbitrary rule. Skipping unassigned hooks seems like a good idea, also because newinfo->hook_entry and newinfo->underflow will then continue to have the poison value for detecting abnormalities. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: use memcmp in unconditional checkJan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of inspecting each u32/char open-coded, clean up and make use of memcmp. On some arches, memcmp is implemented as assembly or GCC's __builtin_memcmp which can possibly take advantages of known alignment. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: iptables: remove unused datalen variableJan Engelhardt2009-08-10
| | | | | | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: switch table AFs to nfprotoJan Engelhardt2009-08-10
| | | | | | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: switch hook PFs to nfprotoJan Engelhardt2009-08-10
| | | | | | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: conntrack: switch hook PFs to nfprotoJan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | | | | Simple substitution to indicate that the fields indeed use the NFPROTO_ space. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: remove xt_owner v0Jan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | Superseded by xt_owner v1 (v2.6.24-2388-g0265ab4). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: remove xt_mark v0Jan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | Superseded by xt_mark v1 (v2.6.24-2922-g17b0d7e). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: remove xt_iprange v0Jan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | Superseded by xt_iprange v1 (v2.6.24-2928-g1a50c5a1). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: remove xt_conntrack v0Jan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | Superseded by xt_conntrack v1 (v2.6.24-2921-g64eb12f). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: remove xt_connmark v0Jan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | Superseded by xt_connmark v1 (v2.6.24-2919-g96e3227). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: remove xt_MARK v0, v1Jan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | Superseded by xt_MARK v2 (v2.6.24-2918-ge0a812a). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: remove xt_CONNMARK v0Jan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | Superseded by xt_CONNMARK v1 (v2.6.24-2917-g0dc8c76). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| | * netfilter: xtables: remove xt_TOS v0Jan Engelhardt2009-08-10
| | | | | | | | | | | | | | | | | | Superseded by xt_TOS v1 (v2.6.24-2396-g5c350e5). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
| * | netfilter: ebtables: Use %pM conversion specifierTobias Klauser2009-08-10
| | | | | | | | | | | | | | | | | | | | | | | | ebt_log uses its own implementation of print_mac to print MAC addresses. This patch converts it to use the %pM conversion specifier for printk. Signed-off-by: Tobias Klauser <klto@zhaw.ch> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * | netfilter: nf_conntrack: add SCTP support for SO_ORIGINAL_DSTRafael Laufer2009-08-10
| |/ | | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* | net_sched: fix estimator lock selection for mq child qdiscsPatrick McHardy2009-09-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When new child qdiscs are attached to the mq qdisc, they are actually attached as root qdiscs to the device queues. The lock selection for new estimators incorrectly picks the root lock of the existing and to be replaced qdisc, which results in a use-after-free once the old qdisc has been destroyed. Mark mq qdisc instances with a new flag and treat qdiscs attached to mq as children similar to regular root qdiscs. Additionally prevent estimators from being attached to the mq qdisc itself since it only updates its byte and packet counters during dumps. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2009-09-09
|\ \ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
| * | cfg80211: allow scanning on specified frequencies when using wext-compatibilityHolger Schurig2009-09-09
| | | | | | | | | | | | | | | | | | | | | | | | Handles the case when SIOCSIWSCAN specified iw_scan_req.num_channels and iw_scan_req.channels[]. Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | wireless: update cfg80211 kconfig entryLuis R. Rodriguez2009-09-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cfg80211 is now *the* wireless configuration API. Lets also give a little explanation as to what it is and refer people to the wireless wiki for more information. Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | headers: net/ipv[46]/protocol.c header trimAlexey Dobriyan2009-09-09
|/ / | | | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net_sched: add classful multiqueue dummy schedulerDavid S. Miller2009-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a classful dummy scheduler which can be used as root qdisc for multiqueue devices and exposes each device queue as a child class. This allows to address queues individually and graft them similar to regular classes. Additionally it presents an accumulated view of the statistics of all real root qdiscs in the dummy root. Two new callbacks are added to the qdisc_ops and qdisc_class_ops: - cl_ops->select_queue selects the tx queue number for new child classes. - qdisc_ops->attach() overrides root qdisc device grafting to attach non-shared qdiscs to the queues. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net_sched: move dev_graft_qdisc() to sch_generic.cPatrick McHardy2009-09-06
| | | | | | | | | | | | | | It will be used in a following patch by the multiqueue qdisc. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net_sched: reintroduce dev->qdisc for use by sch_apiPatrick McHardy2009-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the multiqueue integration with the qdisc API suffers from a few problems: - with multiple queues, all root qdiscs use the same handle. This means they can't be exposed to userspace in a backwards compatible fashion. - all API operations always refer to queue number 0. Newly created qdiscs are automatically shared between all queues, its not possible to address individual queues or restore multiqueue behaviour once a shared qdisc has been attached. - Dumps only contain the root qdisc of queue 0, in case of non-shared qdiscs this means the statistics are incomplete. This patch reintroduces dev->qdisc, which points to the (single) root qdisc from userspace's point of view. Currently it either points to the first (non-shared) default qdisc, or a qdisc shared between all queues. The following patches will introduce a classful dummy qdisc, which will be used as root qdisc and contain the per-queue qdiscs as children. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net_sched: remove some unnecessary checks in classful schedulersPatrick McHardy2009-09-06
| | | | | | | | | | | | | | | | | | | | The class argument to the ->graft(), ->leaf(), ->dump(), ->dump_stats() all originate from either ->get() or ->walk() and are always valid. Remove unnecessary checks. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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