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* [AF_IUCV]: Add lock when updating accept_qUrsula Braun2007-07-14
| | | | | | | | | | | | The accept_queue of an af_iucv socket will be corrupted, if adding and deleting of entries in this queue occurs at the same time (connect request from one client, while accept call is processed for another client). Solution: add locking when updating accept_q Signed-off-by: Ursula Braun <braunu@de.ibm.com> Acked-by: Frank Pavlic <fpavlic@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [INET_SOCK]: make net/ipv4/inet_timewait_sock.c:__inet_twsk_kill() staticAdrian Bunk2007-07-14
| | | | | | | This patch makes the needlessly global __inet_twsk_kill() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] mac80211: clarify some mac80211 thingsJohannes Berg2007-07-12
| | | | | | | | | | | | | The semantics of not having an add_interface callback are not well defined, this callback is required because otherwise you cannot obtain the requested MAC address of the device. Change the documentation to reflect this, add a note about having no MAC address at all, add a warning that mac_addr in struct ieee80211_if_init_conf can be NULL and finally verify that a few callbacks are assigned by way of BUG_ON() Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] mac80211: remove ieee80211_set_aid_for_staJohannes Berg2007-07-12
| | | | | | | | Remove ieee80211_set_aid_for_sta and associated code. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] cfg80211: Radiotap parserAndy Green2007-07-12
| | | | | | | | | Generic code to walk through the fields in a radiotap header, accounting for nasties like extended "field present" bitfields and alignment rules Signed-off-by: Andy Green <andy@warmcat.com> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [NET_SCHED]: ematch: module autoloadingPatrick McHardy2007-07-11
| | | | | 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. Miller2007-07-11
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| * [Bluetooth] Add basics to better support and handle eSCO linksMarcel Holtmann2007-07-11
| | | | | | | | | | | | | | | | To better support and handle eSCO links in the future a bunch of constants needs to be added and some basic routines need to be updated. This is the initial step. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * [Bluetooth] Keep rfcomm_dev on the list until it is freedVille Tervo2007-07-11
| | | | | | | | | | | | | | | | | | This patch changes the RFCOMM TTY release process so that the TTY is kept on the list until it is really freed. A new device flag is used to keep track of released TTYs. Signed-off-by: Ville Tervo <ville.tervo@nokia.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * [Bluetooth] Add hci_recv_fragment() helper functionMarcel Holtmann2007-07-11
| | | | | | | | | | | | | | | | Most drivers must handle fragmented HCI data packets and events. This patch adds a generic function for their reassembly to the Bluetooth core layer and thus allows to shrink the complexity of the drivers. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* | [AF_UNIX]: Rewrite garbage collector, fixes race.Miklos Szeredi2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Throw out the old mark & sweep garbage collector and put in a refcounting cycle detecting one. The old one had a race with recvmsg, that resulted in false positives and hence data loss. The old algorithm operated on all unix sockets in the system, so any additional locking would have meant performance problems for all users of these. The new algorithm instead only operates on "in flight" sockets, which are very rare, and the additional locking for these doesn't negatively impact the vast majority of users. In fact it's probable, that there weren't *any* heavy senders of sockets over sockets, otherwise the above race would have been discovered long ago. The patch works OK with the app that exposed the race with the old code. The garbage collection has also been verified to work in a few simple cases. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [DECNET]: Another unnecessary net/tcp.h inclusion in net/dn.hIlpo Järvinen2007-07-11
| | | | | | | | | | | | | | No longer needed. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV6]: Do not send RH0 anymore.YOSHIFUJI Hideaki2007-07-11
| | | | | | | | | | | | | | Based on <draft-ietf-ipv6-deprecate-rh0-00.txt>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV4]: Make ip_tos2prio const.Philippe De Muyter2007-07-11
| | | | | | | | | | Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: Convert DEBUGP to pr_debugPatrick McHardy2007-07-11
| | | | | | | | | | | | | | Convert DEBUGP to pr_debug and fix lots of non-compiling debug statements. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack_helper: use hashtable for conntrack helpersPatrick McHardy2007-07-11
| | | | | | | | | | | | | | Eliminate the last global list searched for every new connection. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack_expect: introduce nf_conntrack_expect_max sysctPatrick McHardy2007-07-11
| | | | | | | | | | | | | | | | | | | | As a last step of preventing DoS by creating lots of expectations, this patch introduces a global maximum and a sysctl to control it. The default is initialized to 4 * the expectation hash table size, which results in 1/64 of the default maxmimum of conntracks. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack_expect: maintain per conntrack expectation listPatrick McHardy2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | This patch brings back the per-conntrack expectation list that was removed around 2.6.10 to avoid walking all expectations on expectation eviction and conntrack destruction. As these were the last users of the global expectation list, this patch also kills that. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: use hashtable for expectationsPatrick McHardy2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently all expectations are kept on a global list that - needs to be searched for every new conncetion - needs to be walked for evicting expectations when a master connection has reached its limit - needs to be walked on connection destruction for connections that have open expectations This is obviously not good, especially when considering helpers like H.323 that register *lots* of expectations and can set up permanent expectations, but it also allows for an easy DoS against firewalls using connection tracking helpers. Use a hashtable for expectations to avoid incurring the search overhead for every new connection. The default hash size is 1/256 of the conntrack hash table size, this can be overriden using a module parameter. This patch only introduces the hash table for expectation lookups and keeps other users to reduce the noise, the following patches will get rid of it completely. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: move expectaton related init code to ↵Patrick McHardy2007-07-11
| | | | | | | | | | | | | | nf_conntrack_expect.c Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: reduce masks to a subset of tuplesPatrick McHardy2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Since conntrack currently allows to use masks for every bit of both helper and expectation tuples, we can't hash them and have to keep them on two global lists that are searched for every new connection. This patch removes the never used ability to use masks for the destination part of the expectation tuple and completely removes masks from helpers since the only reasonable choice is a full match on l3num, protonum and src.u.all. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack_expect: function naming unificationPatrick McHardy2007-07-11
| | | | | | | | | | | | | | | | | | | | Currently there is a wild mix of nf_conntrack_expect_, nf_ct_exp_, expect_, exp_, ... Consistently use nf_ct_ as prefix for exported functions. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_nat: use hlists for bysource hashPatrick McHardy2007-07-11
| | | | | | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: export hash allocation/destruction functionsPatrick McHardy2007-07-11
| | | | | | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: remove 'ignore_conntrack' argument from ↵Patrick McHardy2007-07-11
| | | | | | | | | | | | | | | | | | nf_conntrack_find_get All callers pass NULL, this also doesn't seem very useful for modules. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: use hlists for conntrack hashPatrick McHardy2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert conntrack hash to hlists to reduce its size and cache footprint. Since the default hashsize to max. entries ratio sucks (1:16), this patch doesn't reduce the amount of memory used for the hash by default, but instead uses a better ratio of 1:8, which results in the same max. entries value. One thing worth noting is early_drop. It really should use LRU, so it now has to iterate over the entire chain to find the last unconfirmed entry. Since chains shouldn't be very long and the entire operation is very rare this shouldn't be a problem. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_nat: merge nf_conn and nf_nat_infoYasuyuki Kozakai2007-07-11
| | | | | | | | | | | | Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_nat: kill global 'destroy' operationYasuyuki Kozakai2007-07-11
| | | | | | | | | | | | | | | | | | | | This kills the global 'destroy' operation which was used by NAT. Instead it uses the extension infrastructure so that multiple extensions can register own operations. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: remove old memory allocator of conntrackYasuyuki Kozakai2007-07-11
| | | | | | | | | | | | | | | | | | Now memory space for help and NAT are allocated by extension infrastructure. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_nat: remove unused nf_nat_module_is_loadedYasuyuki Kozakai2007-07-11
| | | | | | | | | | | | Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_nat: use extension infrastructureYasuyuki Kozakai2007-07-11
| | | | | | | | | | | | Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_nat: add reference to conntrack from entry of bysource listYasuyuki Kozakai2007-07-11
| | | | | | | | | | | | | | | | | | I will split 'struct nf_nat_info' out from conntrack. So I cannot use 'offsetof' to get the pointer to conntrack from it. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: use extension infrastructure for helperYasuyuki Kozakai2007-07-11
| | | | | | | | | | | | Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: introduce extension infrastructureYasuyuki Kozakai2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Old space allocator of conntrack had problems about extensibility. - It required slab cache per combination of extensions. - It expected what extensions would be assigned, but it was impossible to expect that completely, then we allocated bigger memory object than really required. - It needed to search helper twice due to lock issue. Now basic informations of a connection are stored in 'struct nf_conn'. And a storage for extension (helper, NAT) is allocated by kmalloc. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_nat: move NAT declarations from nf_conntrack_ipv4.h to nf_nat.hYasuyuki Kozakai2007-07-11
| | | | | | | | | | | | Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [UDP]: Cleanup UDP encapsulation codeJames Chapman2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | This cleanup fell out after adding L2TP support where a new encap_rcv funcptr was added to struct udp_sock. Have XFRM use the new encap_rcv funcptr, which allows us to move the XFRM encap code from udp.c into xfrm4_input.c. Make xfrm4_rcv_encap() static since it is no longer called externally. Signed-off-by: James Chapman <jchapman@katalix.com> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IrDA]: Netlink layer.Samuel Ortiz2007-07-11
| | | | | | | | | | | | | | | | First IrDA configuration netlink layer implementation. Currently, we only support the set/get mode commands. Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NET_SCHED]: Remove unnecessary stats_lock pointersPatrick McHardy2007-07-11
| | | | | | | | | | | | | | | | | | | | | | Remove stats_lock pointers from qdisc-internal structures, in all cases it points to dev->queue_lock. The only case where it is necessary is for top-level qdiscs, where it might also point to dev->ingress_lock in case of the ingress qdisc. Also remove it from actions completely, it always points to the actions internal lock. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [XFRM] Introduce standalone SAD lookupJamal Hadi Salim2007-07-11
| | | | | | | | | | | | | | | | This allows other in-kernel functions to do SAD lookups. The only known user at the moment is pktgen. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [XFRM]: Add module alias for transformation type.Masahide NAKAMURA2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is clean-up for XFRM type modules and adds aliases with its protocol: ESP, AH, IPCOMP, IPIP and IPv6 for IPsec ROUTING and DSTOPTS for MIPv6 It is almost the same thing as XFRM mode alias, but it is added new defines XFRM_PROTO_XXX for preprocessing since some protocols are defined as enum. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Acked-by: Ingo Oeser <netdev@axxeo.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV6] MIP6: Loadable module support for MIPv6.Masahide NAKAMURA2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV6] MIP6: Kill unnecessary ifdefs.Masahide NAKAMURA2007-07-11
| | | | | | | | | | | | | | | | | | | | | | Kill unnecessary CONFIG_IPV6_MIP6. o It is redundant for RAW socket to keep MH out with the config then it can handle any protocol. o Clean-up at AH. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETLINK]: attr: add nested compat attribute typePatrick McHardy2007-07-11
| | | | | | | | | | | | | | | | | | Add a nested compat attribute type that can be used to convert attributes that contain a structure to nested attributes in a backwards compatible way. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [RTNETLINK]: Link creation APIPatrick McHardy2007-07-11
| | | | | | | | | | | | | | Add rtnetlink API for creating, changing and deleting software devices. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [TIPC]: Optimize stream send routine to avoid fragmentationAllan Stephens2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enhances TIPC's stream socket send routine so that it avoids transmitting data in chunks that require fragmentation and reassembly, thereby improving performance at both the sending and receiving ends of the connection. The "maximum packet size" hint that records MTU info allows the socket to decide how big a chunk it should send; in the event that the hint has become stale, fragmentation may still occur, but the data will be passed correctly and the hint will be updated in time for the following send. Note: The 66060 byte pseudo-MTU used for intra-node connections requires the send routine to perform an additional check to ensure it does not exceed TIPC"s limit of 66000 bytes of user data per chunk. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Jon Paul Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV4]: The scheduled removal of multipath cached routing support.David S. Miller2007-07-11
| | | | | | | | | | | | With help from Chris Wedgwood. Signed-off-by: David S. Miller <davem@davemloft.net>
* | AX88796 network driverBen Dooks2007-07-10
|/ | | | | | | | | | | | Support for the Asix AX88796 network controller, an NE2000 compatible 10/100 ethernet device with internal PHY. The driver supports PHY settings via either ioctl() or the ethtool driver ops. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [SCTP] Flag a pmtu change requestVlad Yasevich2007-06-13
| | | | | | | | | | | | Currently, if the socket is owned by the user, we drop the ICMP message. As a result SCTP forgets that path MTU changed and never adjusting it's estimate. This causes all subsequent packets to be fragmented. With this patch, we'll flag the association that it needs to udpate it's estimate based on the already updated routing information. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Acked-by: Sridhar Samudrala <sri@us.ibm.com>
* [SCTP] Update pmtu handling to be similar to tcpVlad Yasevich2007-06-13
| | | | | | | | Introduce new function sctp_transport_update_pmtu that updates the transports and destination caches view of the path mtu. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Acked-by: Sridhar Samudrala <sri@us.ibm.com>
* [IrDA]: Fix Rx/Tx path race.G. Liakhovetski2007-06-08
| | | | | | | | | | | From: G. Liakhovetski <gl@dsa-ac.de> We need to switch to NRM _before_ sending the final packet otherwise we might hit a race condition where we get the first packet from the peer while we're still in LAP_XMIT_P. Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>