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2007-04-25[IrDA] af_irda: IRDA_ASSERT cleanupsSamuel Ortiz1-27/+5
In af_irda.c, the multiple IRDA_ASSERT() are either hiding bugs, useless, or returning the wrong value. Let's clean that up. Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IrDA] af_irda: irda_accept cleanupSamuel Ortiz1-26/+8
This patch removes a cut'n'paste copy of wait_event_interruptible from irda_accept. Signed-off-by: Samuel Ortiz <samuel@ortiz.org> Acked-by: Olaf Kirch <olaf.kirch@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IrDA] af_irda: Silence kernel message in irda_recvmsg_streamOlaf Kirch1-7/+11
This patch silences an IRDA_ASSERT in irda_recvmsg_stream, as described in http://bugzilla.kernel.org/show_bug.cgi?id=7512 irda_disconnect_indication would set sk->sk_err to ECONNRESET, and a subsequent call to recvmsg would print an irritating kernel message and return -1. When a connected socket is closed by the peer, recvmsg should return 0 rather than an error. This patch fixes this. Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IrDA] af_irda: irda_recvmsg_stream cleanupOlaf Kirch1-18/+13
This patch cleans up some code in irda_recvmsg_stream, replacing some homebrew code with prepare_to_wait/finish_wait, and by making the code honor sock_rcvtimeo. Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET]: Move sk_setup_caps() out of line.Andi Kleen1-0/+15
It is far too large to be an inline and not in any hot paths. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[TCP]: Uninline tcp_done().Andi Kleen1-0/+17
The function is quite big and has several call sites and nothing to collapse by compiler optimization on inlining. Besides it's nicer to read in a in .c file. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET]: cleanup extra semicolonsStephen Hemminger47-103/+113
Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[TCP]: TCP Illinois congestion control (rev3)Stephen Hemminger3-0/+298
This is an implementation of TCP Illinois invented by Shao Liu at University of Illinois. It is a another variant of Reno which adapts the alpha and beta parameters based on RTT. The basic idea is to increase window less rapidly as delay approaches the maximum. See the papers and talks to get a more complete description. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET]: Get rid of netdev_nitStephen Hemminger1-13/+5
It isn't any faster to test a boolean global variable than do a simple check for empty list. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET] skbuff: skb_store_bits const is backwardsStephen Hemminger1-1/+1
Getting warnings becuase skb_store_bits has skb as constant, but the function overwrites it. Looks like const was on the wrong side. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[BRIDGE]: Fix warning in net-2.6.22Stephen Hemminger1-1/+0
The following is leftover from earlier change in net-2.6.22. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[AX25/NETROM/ROSE]: Convert to use modern wait queue APIRalf Baechle3-115/+109
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[AF_PACKET]: Add option to return orig_dev to userspace.Peter P. Waskiewicz Jr1-3/+29
Add a packet socket option to allow the orig_dev index to be returned to userspace when passing traffic through a decapsulated device, such as the bonding driver. This is very useful for layer 2 traffic being able to report which physical device actually received the traffic, instead of having the encapsulating device hide that information. The new option is called PACKET_ORIGDEV. Signed-off-by: Peter P. Waskiewicz Jr. <peter.p.waskiewicz.jr@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IPV6] SNMP: Export statistics via netlink without CONFIG_PROC_FS.YOSHIFUJI Hideaki1-6/+4
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IPV4] SNMP: Move some statistic bits to net/ipv4/proc.c.YOSHIFUJI Hideaki2-20/+64
This also fixes memory leak in error path. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IPV6] SNMP: Move some statistic bits to net/ipv6/proc.c.YOSHIFUJI Hideaki2-33/+30
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IPV6] SNMP: Netlink interface.YOSHIFUJI Hideaki2-5/+49
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[INET]: Add IP(V6)_PMTUDISC_RPOBEJohn Heffner4-10/+29
Add IP(V6)_PMTUDISC_PROBE value for IP(V6)_MTU_DISCOVER. This option forces us not to fragment, but does not make use of the kernel path MTU discovery. That is, it allows for user-mode MTU probing (or, packetization-layer path MTU discovery). This is particularly useful for diagnostic utilities, like traceroute/tracepath. Signed-off-by: John Heffner <jheffner@psc.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IPV6]: MTU discovery check in ip6_fragment()John Heffner1-0/+13
Adds a check in ip6_fragment() mirroring ip_fragment() for packets that we can't fragment, and sends an ICMP Packet Too Big message in response. Signed-off-by: John Heffner <jheffner@psc.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET_SCHED]: ingress: switch back to using ingress_lockPatrick McHardy5-23/+26
Switch ingress queueing back to use ingress_lock. qdisc_lock_tree now locks both the ingress and egress qdiscs on the device. All changes to data that might be used on both ingress and egress needs to be protected by using qdisc_lock_tree instead of manually taking dev->queue_lock. Additionally the qdisc stats_lock needs to be initialized to ingress_lock for ingress qdiscs. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET_SCHED]: Eliminate qdisc_tree_lockPatrick McHardy3-43/+10
Since we're now holding the rtnl during the entire dump operation, we can remove qdisc_tree_lock, whose only purpose is to protect dump callbacks from concurrent changes to the qdisc tree. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETLINK]: don't reinitialize callback mutexPatrick McHardy1-2/+6
Don't reinitialize the callback mutex the netlink_kernel_create caller handed in, it is supposed to already be initialized and could already be held by someone. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[RTNETLINK]: Remove unnecessary locking in dump callbacksPatrick McHardy6-22/+3
Since we're now holding the rtnl during the entire dump operation, we can remove additional locking for rtnl protected data. This patch does that for all simple cases (dev_base_lock for dev_base walking, RCU protection for FIB rule dumping). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[RTNETLINK]: Hold rtnl_mutex during netlink dump callbacksPatrick McHardy1-2/+6
Hold rtnl_mutex during the entire netlink dump operation. This allows to simplify locking in the dump callbacks, since they can now rely on that no concurrent changes happen. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETLINK]: Switch cb_lock spinlock to mutex and allow to override itPatrick McHardy12-26/+35
Switch cb_lock to mutex and allow netlink kernel users to override it with a subsystem specific mutex for consistent locking in dump callbacks. All netlink_dump_start users have been audited not to rely on any side-effects of the previously used spinlock. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETFILTER]: ipt_ULOG: add compat conversion functionsPatrick McHardy1-0/+40
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETFILTER]: nfnetlink_log: remove fallback to group 0Patrick McHardy1-5/+0
Don't fallback to group 0 if no instance can be found for the given group. This potentially confuses the listener and is not what the user configured. Also remove the ring buffer spamming that happens when rules are set up before the logging daemon is started. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETFILTER]: {eb,ip6,ip}t_LOG: remove remains of LOG target overloadingPatrick McHardy3-24/+12
All LOG targets always use their internal logging function nowadays, so remove the incorrect error message and handle real errors (!= -EEXIST) by failing to load. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETFILTER]: nf_nat: use HW checksumming when possiblePatrick McHardy1-12/+37
When mangling packets forwarded to a HW checksumming capable device, offload recalculation of the checksum instead of doing it in software. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETFILTER]: ebt_arp: add gratuitous arp filteringBart De Schuymer1-26/+22
The attached patch adds gratuitous arp filtering, more precisely: it allows checking that the IPv4 source address matches the IPv4 destination address inside the ARP header. It also adds a check for the hardware address type when matching MAC addresses (nothing critical, just for better consistency). Signed-off-by: Bart De Schuymer <bdschuym@pandora.be> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETFILTER]: bridge-nf: filter bridged IPv4/IPv6 encapsulated in pppoe trafficMichael Milner1-4/+73
The attached patch by Michael Milner adds support for using iptables and ip6tables on bridged traffic encapsulated in ppoe frames, similar to what's already supported for vlan. Signed-off-by: Michael Milner <milner@blissisland.ca> Signed-off-by: Bart De Schuymer <bdschuym@pandora.be> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[DCCP]: Debug statements for Elapsed Time optionGerrit Renker1-2/+6
This prints the value of the parsed Elapsed Time when received via a Timestamp Echo option [RFC 4342, 13.3]. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[DCCP]: Fix bug in the calculation of very low sending ratesGerrit Renker1-2/+2
This fixes an error in the calculation of t_ipi when X converges towards very low sending rates (between 1 and 64 bytes per second). Although this case may not sound likely, it can be reproduced by connecting, hitting enter (1 byte sent) and waiting for some time, during which the nofeedback timer halves the sending rate until finally it reaches the region 1..64 bytes/sec. Computing X is handled correctly (tested separately); but by dividing X _before_ entering the calculation of t_ipi, X becomes zero as a result. This in turn triggers a BUG condition caught in scaled_div(). Fixed by replacing with equivalent statement and explicit typecast for good measure. Calculation verified and effect of patch tested - reduced never below 1 byte per 64 seconds afterwards, i.e. not allowing divide-by-zero. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Fix missing offset adjustment in skb_copy_expandPatrick McHardy1-1/+10
skb_copy_expand changes the headroom, so it needs to adjust the header offsets by the difference between the old and the new value. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25bridge: check kmem_cache_create() errorAkinobu Mita3-3/+9
This patch checks kmem_cache_create() error and aborts loading module on failure. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
2007-04-25bridge: allow changing hardware address to any valid addressStephen Hemminger1-12/+7
For case of bridging pseudo devices, the get created/destroyed (Xen) need to allow setting address to any valid value. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
2007-04-25bridge: change when netlink events go to STPStephen Hemminger3-7/+13
Need to tell STP daemon about more events, like any time a device is added even when it is down. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
2007-04-25bridge: add support for user mode STPStephen Hemminger8-17/+96
This patchset based on work by Aji_Srinivas@emc.com provides allows spanning tree to be controled from userspace. Like hotplug, it uses call_usermodehelper when spanning tree is enabled so there is no visible API change. If call to start usermode STP fails it falls back to existing kernel STP. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
2007-04-25bridge: add sysfs hook to flush forwarding tableStephen Hemminger4-0/+42
The RSTP daemon needs to be able to flush all dynamic forwarding entries in the case of topology change. This is a temporary interface. It will change to a netlink interface before RSTP daemon is officially released. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
2007-04-25bridge: simpler hash with saltStephen Hemminger1-5/+12
Instead of hashing the whole Ethernet address, it should be faster to just use the last 4 bytes. Add a random salt value to the hash to make it more difficult to construct worst case DoS hash chains. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
2007-04-25bridge: don't route packets while learningStephen Hemminger1-7/+10
While in the STP learning state, don't route packets; wait until forwarding delay has expired. The purpose of the forwarding delay is to detect loops in the network, and if a brouter started up and started forwarding, it could cause a flood. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
2007-04-25bridge: eliminate call by referenceStephen Hemminger3-24/+30
Change the bridging hook to be simple function with return value rather than modifying the skb argument. This could generate better code and is cleaner. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
2007-04-25[NET]: Treat CHECKSUM_PARTIAL as CHECKSUM_UNNECESSARYHerbert Xu10-21/+16
When a transmitted packet is looped back directly, CHECKSUM_PARTIAL maps to the semantics of CHECKSUM_UNNECESSARY. Therefore we should treat it as such in the stack. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET]: Use csum_start offset instead of skb_transport_headerHerbert Xu5-11/+21
The skb transport pointer is currently used to specify the start of the checksum region for transmit checksum offload. Unfortunately, the same pointer is also used during receive side processing. This creates a problem when we want to retransmit a received packet with partial checksums since the skb transport pointer would be overwritten. This patch solves this problem by creating a new 16-bit csum_start offset value to replace the skb transport header for the purpose of checksums. This offset is calculated from skb->head so that it does not have to change when skb->data changes. No extra space is required since csum_offset itself fits within a 16-bit word so we can use the other 16 bits for csum_start. For backwards compatibility, just before we push a packet with partial checksums off into the device driver, we set the skb transport header to what it would have been under the old scheme. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[XFRM]: beet: fix worst case header_len calculationPatrick McHardy2-2/+3
esp_init_state doesn't account for the beet pseudo header in the header_len calculation, which may result in undersized skbs hitting xfrm4_beet_output, causing unnecessary reallocations in ip_finish_output2. The skbs should still always have enough room to avoid causing skb_under_panic in skb_push since we have at least 16 bytes available from LL_RESERVED_SPACE in xfrm_state_check_space. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[XFRM]: Optimize MTU calculationPatrick McHardy3-50/+38
Replace the probing based MTU estimation, which usually takes 2-3 iterations to find a fitting value and may underestimate the MTU, by an exact calculation. Also fix underestimation of the XFRM trailer_len, which causes unnecessary reallocations. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[XFRM]: esp: fix skb_tail_pointer conversion bugPatrick McHardy2-2/+2
Fix incorrect switch of "trailer" skb by "skb" during skb_tail_pointer conversion: - *(u8*)(trailer->tail - 1) = top_iph->protocol; + *(skb_tail_pointer(skb) - 1) = top_iph->protocol; - *(u8 *)(trailer->tail - 1) = *skb_network_header(skb); + *(skb_tail_pointer(skb) - 1) = *skb_network_header(skb); Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Fix missing offset adjustment in pskb_expand_headPatrick McHardy1-1/+2
Since we're increasing the headroom, the header offsets need to be increased by the same amount as well. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IPV6] FIB6RULE: Find source address during looking up route.YOSHIFUJI Hideaki1-3/+31
When looking up route for destination with rules with source address restrictions, we may need to find a source address for the traffic if not given. Based on patch from Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[XFRM]: beet: minor cleanupsPatrick McHardy1-6/+2
Remove unnecessary initialization/variable. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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