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* | [NET_SCHED]: Fix filter double freePatrick McHardy2007-06-072-3/+6
| | | | | | | | | | | | | | | | | | | | cbq and atm destroy their filters twice when destroying inner classes during qdisc destruction. Reported-and-tested-by: Strobl Anton <a.strobl@aws-it.at> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NET]: Avoid duplicate netlink notification when changing link stateThomas Graf2007-06-071-3/+5
| | | | | | | | | | | | | | | | | | | | | | When changing the link state from userspace not affecting any other flags. Two duplicate notification are being sent, once as action in the NETDEV_UP/NETDEV_DOWN notification chain and a second time when comparing old and new device flags after the change has been completed. Although harmless, the duplicates should be avoided. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [UDP]: Revert 2-pass hashing changes.David S. Miller2007-06-076-203/+76Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts changesets: 6aaf47fa48d3c44280810b1b470261d340e4ed87 b7b5f487ab39bc10ed0694af35651a03d9cb97ff de34ed91c4ffa4727964a832c46e624dd1495cf5 fc038410b4b1643766f8033f4940bcdb1dace633 There are still some correctness issues recently discovered which do not have a known fix that doesn't involve doing a full hash table scan on port bind. So revert for now. Signed-off-by: David S. Miller <davem@davemloft.net>
* | [AF_UNIX]: Fix stream recvmsg() race.Miklos Szeredi2007-06-071-3/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A recv() on an AF_UNIX, SOCK_STREAM socket can race with a send()+close() on the peer, causing recv() to return zero, even though the sent data should be received. This happens if the send() and the close() is performed between skb_dequeue() and checking sk->sk_shutdown in unix_stream_recvmsg(): process A skb_dequeue() returns NULL, there's no data in the socket queue process B new data is inserted onto the queue by unix_stream_sendmsg() process B sk->sk_shutdown is set to SHUTDOWN_MASK by unix_release_sock() process A sk->sk_shutdown is checked, unix_release_sock() returns zero I'm surprised nobody noticed this, it's not hard to trigger. Maybe it's just (un)luck with the timing. It's possible to work around this bug in userspace, by retrying the recv() once in case of a zero return value. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack_amanda: fix textsearch_prepare() error checkAkinobu Mita2007-06-071-6/+6
| | | | | | | | | | | | | | | | | | | | The return value from textsearch_prepare() needs to be checked by IS_ERR(). Because it returns error code as a pointer. Cc: "Brian J. Murrell" <netfilter@interlinx.bc.ca> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: ip_tables: fix compat related crashDmitry Mishin2007-06-071-18/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | check_compat_entry_size_and_hooks iterates over the matches and calls compat_check_calc_match, which loads the match and calculates the compat offsets, but unlike the non-compat version, doesn't call ->checkentry yet. On error however it calls cleanup_matches, which in turn calls ->destroy, which can result in crashes if the destroy function (validly) expects to only get called after the checkentry function. Add a compat_release_match function that only drops the module reference on error and rename compat_check_calc_match to compat_find_calc_match to reflect the fact that it doesn't call the checkentry function. Reported by Jan Engelhardt <jengelh@linux01.gwdg.de> Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: fix helper module unload racesPatrick McHarrdy2007-06-077-29/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When a helper module is unloaded all conntracks refering to it have their helper pointer NULLed out, leading to lots of races. In most places this can be fixed by proper use of RCU (they do already check for != NULL, but in a racy way), additionally nf_conntrack_expect_related needs to bail out when no helper is present. Also remove two paranoid BUG_ONs in nf_conntrack_proto_gre that are racy and not worth fixing. Signed-off-by: Patrick McHarrdy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [RTNETLINK]: ifindex 0 does not existPatrick McHardy2007-06-071-3/+3
| | | | | | | | | | | | | | | | ifindex == 0 does not exist and implies we should do a lookup by name if one was given. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETLINK]: Mark netlink policies constPatrick McHardy2007-06-0715-19/+19
| | | | | | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [TCP] tcp_probe: Attach printf attribute properly to printl().David S. Miller2007-06-071-2/+4
| | | | | | | | | | | | | | | | GCC doesn't like the way Stephen initially did it: net/ipv4/tcp_probe.c:83: warning: empty declaration Signed-off-by: David S. Miller <davem@davemloft.net>
* | [TCP]: Use LIMIT_NETDEBUG in tcp_retransmit_timer().Eric Dumazet2007-06-071-2/+2
| | | | | | | | | | | | | | | | | | | | LIMIT_NETDEBUG allows the admin to disable some warning messages (echo 0 >/proc/sys/net/core/warnings). The "TCP: Treason uncloaked!" message can use this facility. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NET]: Merge dst_discard_in and dst_discard_out.Denis Cheng2007-06-071-13/+4Star
| | | | | | | | | | Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV4]: Restore old behaviour of default config valuesHerbert Xu2007-06-072-15/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously inet devices were only constructed when addresses are added (or rarely in ipmr). Therefore the default config values they get are the ones at the time of these operations. Now that we're creating inet devices earlier, this changes the behaviour of default config values in an incompatible way (see bug #8519). This patch creates a compromise by setting the default values at the same point as before but only for those that have not been explicitly set by the user since the inet device's creation. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV4]: Add default config support after inetdev_initHerbert Xu2007-06-071-35/+98
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously once inetdev_init has been called on a device any changes made to ipv4_devconf_dflt would have no effect on that device's configuration. This creates a problem since we have moved the point where inetdev_init is called from when an address is added to where the device is registered. This patch is the first half of a set that tries to mimic the old behaviour while still calling inetdev_init. It propagates any changes to ipv4_devconf_dflt to those devices that have not had the corresponding attribute set. The next patch will forcibly set all values at the point where inetdev_init was previously called. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV4]: Convert IPv4 devconf to an arrayHerbert Xu2007-06-077-219/+108Star
| | | | | | | | | | | | | | | | | | This patch converts the ipv4_devconf config members (everything except sysctl) to an array. This allows easier manipulation which will be needed later on to provide better management of default config values. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV4]: Only panic if inetdev_init fails for loopbackHerbert Xu2007-06-071-2/+3
| | | | | | | | | | | | | | | | | | | | When I made the inetdev_init call work on all devices I incorrectly left in the panic call as well. It is obviously undesirable to panic on an allocation failure for a normal network device. This patch moves the panic call under the loopback if clause. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [TCP]: Honour sk_bound_dev_if in tcp_v4_send_ackPatrick McHardy2007-06-072-1/+5
|/ | | | | | | | | | | A time_wait socket inherits sk_bound_dev_if from the original socket, but it is not used when sending ACK packets using ip_send_reply. Fix by passing the oif to ip_send_reply in struct ip_reply_arg and use it for output routing. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ICMP]: Fix icmp_errors_use_inbound_ifaddr sysctlPatrick McHardy2007-06-041-6/+9
| | | | | | | | | | | | Currently when icmp_errors_use_inbound_ifaddr is set and an ICMP error is sent after the packet passed through ip_output(), an address from the outgoing interface is chosen as ICMP source address since skb->dev doesn't point to the incoming interface anymore. Fix this by doing an interface lookup on rt->dst.iif and using that device. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Fix "ipOutNoRoutes" counter error for TCP and UDPWei Dong2007-06-043-3/+13
| | | | | Signed-off-by: Wei Dong <weidong@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] gso: Fix GSO feature mask in sk_setup_capsHerbert Xu2007-06-041-1/+1
| | | | | | | | | | | | | | | | This isn't a bug just yet as only TCP uses sk_setup_caps for GSO. However, if and when UDP or something else starts using it this is likely to cause a problem if we forget to add software emulation for it at the same time. The problem is that right now we translate GSO emulation to the bitmask NETIF_F_GSO_MASK, which includes every protocol, even ones that we cannot emulate. This patch makes it provide only the ones that we can emulate. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TCP]: Fix GSO ignorance of pkts_acked arg (cong.cntrl modules)Ilpo Järvinen2007-06-041-2/+2
| | | | | | | | | | | | The code used to ignore GSO completely, passing either way too small or zero pkts_acked when GSO skb or part of it got ACKed. In addition, there is no need to calculate the value in the loop but simple arithmetics after the loop is sufficient. There is no need to handle SYN case specially because congestion control modules are not yet initialized when FLAG_SYN_ACKED is set. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix comparisons of unsigned < 0.Bill Nottingham2007-06-048-19/+7Star
| | | | | | | | Recent gcc versions emit warnings when unsigned variables are compared < 0 or >= 0. Signed-off-by: Bill Nottingham <notting@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make net watchdog timers 1 sec jiffy aligned.Venkatesh Pallipadi2007-06-041-1/+2
| | | | | | | round_jiffies for net dev watchdog timer. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TCP]: Use default 32768-61000 outgoing port range in all cases.Mark Glines2007-06-042-6/+1Star
| | | | | | | | | | | | | | This diff changes the default port range used for outgoing connections, from "use 32768-61000 in most cases, but use N-4999 on small boxes (where N is a multiple of 1024, depending on just *how* small the box is)" to just "use 32768-61000 in all cases". I don't believe there are any drawbacks to this change, and it keeps outgoing connection ports farther away from the mess of IANA-registered ports. Signed-off-by: Mark Glines <mark@glines.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [AF_UNIX]: Fix datagram connect race causing an OOPS.David S. Miller2007-06-041-5/+38
| | | | | | | | | | | | | | | | | | | | | | | | Based upon an excellent bug report and initial patch by Frederik Deweerdt. The UNIX datagram connect code blindly dereferences other->sk_socket via the call down to the security_unix_may_send() function. Without locking 'other' that pointer can go NULL via unix_release_sock() which does sock_orphan() which also marks the socket SOCK_DEAD. So we have to lock both 'sk' and 'other' yet avoid all kinds of potential deadlocks (connect to self is OK for datagram sockets and it is possible for two datagram sockets to perform a simultaneous connect to each other). So what we do is have a "double lock" function similar to how we handle this situation in other areas of the kernel. We take the lock of the socket pointer with the smallest address first in order to avoid ABBA style deadlocks. Once we have them both locked, we check to see if SOCK_DEAD is set for 'other' and if so, drop everything and retry the lookup. Signed-off-by: David S. Miller <davem@davemloft.net>
* [AF_UNIX]: Make socket locking much less confusing.David S. Miller2007-06-041-47/+47
| | | | | | | | | | | The unix_state_*() locking macros imply that there is some rwlock kind of thing going on, but the implementation is actually a spinlock which makes the code more confusing than it needs to be. So use plain unix_state_lock and unix_state_unlock. Signed-off-by: David S. Miller <davem@davemloft.net>
* VLAN: kill_vid is only useful for VLAN filtering devicesStephen Hemminger2007-06-031-7/+3Star
| | | | | | | | | | | | | | The interface for network device VLAN extension was confusing. The kill_vid function is only really useful for devices that do hardware filtering. Devices that only do VLAN receiption without filtering were being forced to provide the hook, and there were bugs in those devices. Many drivers had kill_vid routine that called vlan_group_set_device, with NULL, but that is done already. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* Merge branch 'mac80211' of ↵David S. Miller2007-05-312-2/+8
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| * [PATCH] mac80211: avoid null ptr deref in ieee80211_ibss_add_staJohn W. Linville2007-05-291-1/+1
| | | | | | | | | | | | avoid sdata null pointer dereference in ieee80211_ibss_add_sta. Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * [PATCH] mac80211: always set carrier status on openMichael Wu2007-05-291-0/+2
| | | | | | | | | | | | | | | | ieee80211_open should always set the carrier status since we may have set it to off before. Signed-off-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * [PATCH] mac80211: fix memory leak when defrag fragmentsHong Liu2007-05-291-1/+3
| | | | | | | | | | | | | | We forget to free all the fragments when defraging them into one packet. Signed-off-by: Hong Liu <hong.liu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * [PATCH] mac80211: fail back to use associate from reassociateZhu Yi2007-05-291-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Some APs have strict checking between associate and reassociate. In a case when an AP is restarted during a connection, it denies the mac80211 reassoc request since this is a new association for the AP. To fix this problem, we need to check the status code against WLAN_STATUS_REASSOC_NO_ASSOC and clear ifsta->prev_bssid_set in handling the association failure response. Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | [BRIDGE]: Round off STP perodic timers.Stephen Hemminger2007-05-312-2/+3
| | | | | | | | | | | | | | | | | | Peroidic STP timers don't have to be exact. The hold timer runs at 1HZ, and the hello timer normally runs at 2HZ; save power by aligning it them to next second. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [BRIDGE]: Reduce frequency of forwarding cleanup timer in bridge.Baruch Even2007-05-311-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | The bridge cleanup timer is fired 10 times a second for timers that are at least 15 seconds ahead in time and that are not critical to be cleaned asap. This patch calculates the next time to run the timer as the minimum of all timers or a minimum based on the current state. Signed-off-by: Baruch Even <baruch@ev-en.org> Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [TCP] tcp_probe: use GCC printf attributeStephen Hemminger2007-05-311-1/+2
| | | | | | | | | | | | | | The function in tcp_probe is printf like, use GCC to check the args. Sighed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [TCP] tcp_probe: a trivial fix for mismatched number of printl arguments.Sangtae Ha2007-05-311-1/+1
| | | | | | | | | | | | | | | | Just a fix to correct the number of printl arguments. Now, srtt is logging correctly. Signed-off-by: Sangtae Ha <sangtae.ha@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [TCP]: Consolidate checking for tcp orphan count being too big.Pavel Emelianov2007-05-312-6/+3Star
| | | | | | | | | | | | | | | | | | tcp_out_of_resources() and tcp_close() perform the same checking of number of orphan sockets. Move this code into common place. Signed-off-by: Pavel Emelianov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [AF_PACKET]: Kill CONFIG_PACKET_SOCKET.David S. Miller2007-05-311-20/+5Star
| | | | | | | | | | | | | | Always set, but af_packet.c, not by the Kconfig subsystem, so just get rid of it. Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV6]: Fix build warning.David S. Miller2007-05-311-1/+0Star
| | | | | | | | | | | | | | net/ipv6/ip6_fib.c: In function ‘fib6_add_rt2node’: net/ipv6/ip6_fib.c:661: warning: label ‘out’ defined but not used Signed-off-by: David S. Miller <davem@davemloft.net>
* | [AF_PACKET]: Kill bogus CONFIG_PACKET_MULTICASTDavid S. Miller2007-05-311-27/+4Star
| | | | | | | | | | | | | | It is unconditionally set by af_packet.c, not by the Kconfig subsystem, so just kill it off. Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV4]: Kill references to bogus non-existent CONFIG_IP_NOSIOCRTDavid S. Miller2007-05-311-11/+0Star
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPSEC]: Fix panic when using inter address familiy IPsec on loopback.Kazunori MIYAZAWA2007-05-314-8/+7Star
| | | | | | | | | | Signed-off-by: Kazunori MIYAZAWA <kazunori@miyazawa.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NET]: parse ip:port strings correctly in in4_ptonJerome Borsboom2007-05-311-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | in4_pton converts a textual representation of an ip4 address into an integer representation. However, when the textual representation is of in the form ip:port, e.g. 192.168.1.1:5060, and 'delim' is set to -1, the function bails out with an error when reading the colon. It makes sense to allow the colon as a delimiting character without explicitly having to set it through the 'delim' variable as there can be no ambiguity in the point where the ip address is completely parsed. This function is indeed called from nf_conntrack_sip.c in this way to parse textual ip:port combinations which fails due to the reason stated above. Signed-off-by: Jerome Borsboom <j.borsboom@erasmusmc.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV6] ROUTE: No longer handle ::/0 specially.YOSHIFUJI Hideaki2007-05-311-8/+0Star
| | | | | | | | | | | | | | | | | | We do not need to handle ::/0 routes specially any longer. This should fix BUG #8349. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Yuji Sekiya <sekiya@wide.ad.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPSEC]: Fix IPv6 AH calculation in outboundKazunori MIYAZAWA2007-05-311-1/+1
| | | | | | | | | | Signed-off-by: Kazunori MIYAZAWA <miyazawa@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [XFRM]: xfrm_larval_drop sysctl should be __read_mostly.David S. Miller2007-05-311-1/+2
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | [XFRM]: Allow XFRM_ACQ_EXPIRES to be tunable via sysctl.David S. Miller2007-05-312-6/+18
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PATCH] softmac: alloc_ieee80211() NULL checkAkinobu Mita2007-05-291-1/+4
| | | | | | | | | | | | | | | | | | | | This patch adds missing NULL check and trims a line longer than 80 columns. Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Joe Jezak <josejx@gentoo.org> Cc: Daniel Drake <dsd@gentoo.org> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | [PATCH] ieee80211: fix incomplete error messageAkinobu Mita2007-05-291-1/+1
|/ | | | | | | | | Fix error message: Unable to network device. --> Unable to allocate network device. Cc: James Ketrenos <jketreno@linux.intel.com> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [XFRM]: Allow packet drops during larval state resolution.David S. Miller2007-05-259-14/+199
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current IPSEC rule resolution behavior we have does not work for a lot of people, even though technically it's an improvement from the -EAGAIN buisness we had before. Right now we'll block until the key manager resolves the route. That works for simple cases, but many folks would rather packets get silently dropped until the key manager resolves the IPSEC rules. We can't tell these folks to "set the socket non-blocking" because they don't have control over the non-block setting of things like the sockets used to resolve DNS deep inside of the resolver libraries in libc. With that in mind I coded up the patch below with some help from Herbert Xu which provides packet-drop behavior during larval state resolution, controllable via sysctl and off by default. This lays the framework to either: 1) Make this default at some point or... 2) Move this logic into xfrm{4,6}_policy.c and implement the ARP-like resolution queue we've all been dreaming of. The idea would be to queue packets to the policy, then once the larval state is resolved by the key manager we re-resolve the route and push the packets out. The packets would timeout if the rule didn't get resolved in a certain amount of time. Signed-off-by: David S. Miller <davem@davemloft.net>
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