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* [IPV6]: Fix kernel OOPs when setting sticky socket options.YOSHIFUJI Hideaki2006-08-31
| | | | | | | Bug noticed by Remi Denis-Courmont <rdenis@simphalempin.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: ipv6_add_addr should install dstentry earlierKeir Fraser2006-08-30
| | | | | | | | | | | | | | | | ipv6_add_addr allocates a struct inet6_ifaddr and a dstentry, but it doesn't install the dstentry in ifa->rt until after it releases the addrconf_hash_lock. This means other CPUs will be able to see the new address while it hasn't been initialized completely yet. One possible fix would be to grab the ifp->lock spinlock when creating the address struct; a simpler fix is to just move the assignment. Acked-by: jbeulich@novell.com Acked-by: okir@suse.de Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: SNMPv2 "ipv6IfStatsInAddrErrors" counter errorLv Liangying2006-08-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When I tested Linux kernel 2.6.17.7 about statistics "ipv6IfStatsInAddrErrors", found that this counter couldn't increase correctly. The criteria is RFC2465: ipv6IfStatsInAddrErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of input datagrams discarded because the IPv6 address in their IPv6 header's destination field was not a valid address to be received at this entity. This count includes invalid addresses (e.g., ::0) and unsupported addresses (e.g., addresses with unallocated prefixes). For entities which are not IPv6 routers and therefore do not forward datagrams, this counter includes datagrams discarded because the destination address was not a local address." ::= { ipv6IfStatsEntry 5 } When I send packet to host with destination that is ether invalid address(::0) or unsupported addresses(1::1), the Linux kernel just discard the packet, and the counter doesn't increase(in the function ip6_pkt_discard). Signed-off-by: Lv Liangying <lvly@nanjing-fnst.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Segmentation offload not set correctly on TCP childrenStephen Hemminger2006-08-26
| | | | | | | | | | | | | | TCP over IPV6 would incorrectly inherit the GSO settings. This would cause kernel to send Tcp Segmentation Offload packets for IPV6 data to devices that can't handle it. It caused the sky2 driver to lock http://bugzilla.kernel.org/show_bug.cgi?id=7050 and the e1000 would generate bogus packets. I can't blame the hardware for gagging if the upper layers feed it garbage. This was a new bug in 2.6.18 introduced with GSO support. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MCAST]: Fix filter leak on device removal.David L Stevens2006-08-17
| | | | | | | | | | | This fixes source filter leakage when a device is removed and a process leaves the group thereafter. This also includes corresponding fixes for IPv6 multicast source filters on device removal. Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6] lockdep: annotate __icmpv6_socketIngo Molnar2006-08-17
| | | | | | | | | | | | | | Split off __icmpv6_socket's sk->sk_dst_lock class, because it gets used from softirqs, which is safe for __icmpv6_sockets (because they never get directly used via userspace syscalls), but unsafe for normal sockets. Has no effect on non-lockdep kernels. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [INET]: Use pskb_trim_unique when trimming paged unique skbsHerbert Xu2006-08-13
| | | | | | | | | | | | | | | | | The IPv4/IPv6 datagram output path was using skb_trim to trim paged packets because they know that the packet has not been cloned yet (since the packet hasn't been given to anything else in the system). This broke because skb_trim no longer allows paged packets to be trimmed. Paged packets must be given to one of the pskb_trim functions instead. This patch adds a new pskb_trim_unique function to cover the IPv4/IPv6 datagram output path scenario and replaces the corresponding skb_trim calls with it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: {arp,ip,ip6}_tables: proper error recovery in init pathPatrick McHardy2006-08-13
| | | | | | | | | | Neither of {arp,ip,ip6}_tables cleans up behind itself when something goes wrong during initialization. Noticed by Rennie deGraaf <degraaf@cpsc.ucalgary.ca> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: The ifa lock is a BH lockHerbert Xu2006-08-09
| | | | | | | | The ifa lock is expected to be taken in BH context (by addrconf timers) so we must disable BH when accessing it from user context. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: SNMPv2 "ipv6IfStatsOutFragCreates" counter errorWei Dong2006-08-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When I tested linux kernel 2.6.71.7 about statistics "ipv6IfStatsOutFragCreates", and found that it couldn't increase correctly. The criteria is RFC 2465: ipv6IfStatsOutFragCreates OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of output datagram fragments that have been generated as a result of fragmentation at this output interface." ::= { ipv6IfStatsEntry 15 } I think there are two issues in Linux kernel. 1st: RFC2465 specifies the counter is "The number of output datagram fragments...". I think increasing this counter after output a fragment successfully is better. And it should not be increased even though a fragment is created but failed to output. 2nd: If we send a big ICMP/ICMPv6 echo request to a host, and receive ICMP/ICMPv6 echo reply consisted of some fragments. As we know that in Linux kernel first fragmentation occurs in ICMP layer(maybe saying transport layer is better), but this is not the "real" fragmentation,just do some "pre-fragment" -- allocate space for date, and form a frag_list, etc. The "real" fragmentation happens in IP layer -- set offset and MF flag and so on. So I think in "fast path" for ip_fragment/ip6_fragment, if we send a fragment which "pre-fragment" by upper layer we should also increase "ipv6IfStatsOutFragCreates". Signed-off-by: Wei Dong <weid@nanjing-fnst.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: SNMPv2 "ipv6IfStatsInHdrErrors" counter errorWei Dong2006-08-02
| | | | | | | | | | | | | | | | | | | | | | | | | | When I tested Linux kernel 2.6.17.7 about statistics "ipv6IfStatsInHdrErrors", found that this counter couldn't increase correctly. The criteria is RFC2465: ipv6IfStatsInHdrErrors OBJECT-TYPE SYNTAX Counter3 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of input datagrams discarded due to errors in their IPv6 headers, including version number mismatch, other format errors, hop count exceeded, errors discovered in processing their IPv6 options, etc." ::= { ipv6IfStatsEntry 2 } When I send TTL=0 and TTL=1 a packet to a router which need to be forwarded, router just sends an ICMPv6 message to tell the sender that TIME_EXCEED and HOPLIMITS, but no increments for this counter(in the function ip6_forward). Signed-off-by: Wei Dong <weid@nanjing-fnst.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Core net changes to generate neteventsTom Tucker2006-08-02
| | | | | | | | | | | Generate netevents for: - neighbour changes - routing redirects - pmtu changes Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [TCP]: SNMPv2 tcpAttemptFails counter errorWei Yongjun2006-08-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refer to RFC2012, tcpAttemptFails is defined as following: tcpAttemptFails OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times TCP connections have made a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state, plus the number of times TCP connections have made a direct transition to the LISTEN state from the SYN-RCVD state." ::= { tcp 7 } When I lookup into RFC793, I found that the state change should occured under following condition: 1. SYN-SENT -> CLOSED a) Received ACK,RST segment when SYN-SENT state. 2. SYN-RCVD -> CLOSED b) Received SYN segment when SYN-RCVD state(came from LISTEN). c) Received RST segment when SYN-RCVD state(came from SYN-SENT). d) Received SYN segment when SYN-RCVD state(came from SYN-SENT). 3. SYN-RCVD -> LISTEN e) Received RST segment when SYN-RCVD state(came from LISTEN). In my test, those direct state transition can not be counted to tcpAttemptFails. Signed-off-by: Wei Yongjun <yjwei@nanjing-fnst.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Audit all ip6_dst_lookup/ip6_dst_store callsHerbert Xu2006-08-02
| | | | | | | | | | | | | | | | | | | The current users of ip6_dst_lookup can be divided into two classes: 1) The caller holds no locks and is in user-context (UDP). 2) The caller does not want to lookup the dst cache at all. The second class covers everyone except UDP because most people do the cache lookup directly before calling ip6_dst_lookup. This patch adds ip6_sk_dst_lookup for the first class. Similarly ip6_dst_store users can be divded into those that need to take the socket dst lock and those that don't. This patch adds __ip6_dst_store for those (everyone except UDP/datagram) that don't need an extra lock. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [XFRM]: Fix protocol field value for outgoing IPv6 GSO packetsPatrick McHardy2006-08-02
| | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6] ADDRCONF: NLM_F_REPLACE support for RTM_NEWADDRNoriaki TAKAMIYA2006-08-02
| | | | | | | Based on MIPL2 kernel patch. Signed-off-by: Noriaki YAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6] ADDRCONF: Support get operation of single addressNoriaki TAKAMIYA2006-08-02
| | | | | | | Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6] ADDRCONF: Do not verify an address with infinity lifetimeYOSHIFUJI Hideaki2006-08-02
| | | | | | | We also do not try regenarating new temporary address corresponding to an address with infinite preferred lifetime. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6] ADDRCONF: Allow user-space to specify address lifetimeNoriaki TAKAMIYA2006-08-02
| | | | | | | Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6] ADDRCONF: Check payload length for IFA_LOCAL attribute in ↵YOSHIFUJI Hideaki2006-08-02
| | | | | | RTM_{ADD,DEL}MSG message Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV4/IPV6]: Setting 0 for unused port field in RAW IP recvmsg().Tetsuo Handa2006-07-25
| | | | | | | | | | | | | | | | From: Tetsuo Handa from-linux-kernel@i-love.sakura.ne.jp The recvmsg() for raw socket seems to return random u16 value from the kernel stack memory since port field is not initialized. But I'm not sure this patch is correct. Does raw socket return any information stored in port field? [ BSD defines RAW IP recvmsg to return a sin_port value of zero. This is described in Steven's TCP/IP Illustrated Volume 2 on page 1055, which is discussing the BSD rip_input() implementation. ] Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Clean skb cb on IPv6 input.Guillaume Chazarain2006-07-25
| | | | | | | | Clear the accumulated junk in IP6CB when starting to handle an IPV6 packet. Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6] xfrm6_tunnel: Delete debugging code.David S. Miller2006-07-24
| | | | | | | | | | | | | | It doesn't compile, and it's dubious in several regards: 1) is enabled by non-Kconfig controlled CONFIG_* value (noted by Randy Dunlap) 2) XFRM6_TUNNEL_SPI_MAGIC is defined after it's first use 3) the debugging messages print object pointer addresses which have no meaning without context So let's just get rid of it. Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Conversions from kmalloc+memset to k(z|c)alloc.Panagiotis Issaris2006-07-21
| | | | | | Signed-off-by: Panagiotis Issaris <takis@issaris.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Get rid of redundant IPCB->opts initialisationHerbert Xu2006-07-21
| | | | | | | | Now that we always zero the IPCB->opts in ip_rcv, it is no longer necessary to do so before calling netif_rx for tunneled packets. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPCOMP]: Fix truesize after decompressionHerbert Xu2006-07-12
| | | | | | | | | | | | | | | The truesize check has uncovered the fact that we forgot to update truesize after pskb_expand_head. Unfortunately pskb_expand_head can't update it for us because it's used in all sorts of different contexts, some of which would not allow truesize to be updated by itself. So the solution for now is to simply update it in IPComp. This patch also changes skb_put to __skb_put since we've just expanded tailroom by exactly that amount so we know it's there (but gcc does not). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Use ipv6_addr_src_scope for link address sorting.YOSHIFUJI Hideaki2006-07-12
| | | | | | | | | | | | | | | | | | | | | In the source address selection, the address must be sorted from global to node-local. But, ifp->scope is different from the scope for source address selection. 2001::1 fe80::1 ::1 ifp->scope 0 0x02 0x01 ipv6_addr_src_scope(&ifp->addr) 0x0e 0x02 0x01 So, we need to use ipv6_addr_src_scope(&ifp->addr) for sorting. And, for backward compatibility, addresses should be sorted from new one to old one. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: order addresses by scopeBrian Haley2006-07-12
| | | | | | | | | | If IPv6 addresses are ordered by scope, then ipv6_dev_get_saddr() can break-out of the device addr_list for() loop when the candidate source address scope is less than the destination address scope. Signed-off-by: Brian Haley <brian.haley@hp.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] gso: Fix up GSO packets with broken checksumsHerbert Xu2006-07-08
| | | | | | | | | | | | Certain subsystems in the stack (e.g., netfilter) can break the partial checksum on GSO packets. Until they're fixed, this patch allows this to work by recomputing the partial checksums through the GSO mechanism. Once they've all been converted to update the partial checksum instead of clearing it, this workaround can be removed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] gso: Add skb_is_gsoHerbert Xu2006-07-08
| | | | | | | | | | This patch adds the wrapper function skb_is_gso which can be used instead of directly testing skb_shinfo(skb)->gso_size. This makes things a little nicer and allows us to change the primary key for indicating whether an skb is GSO (if we ever want to do that). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: add+use poison definesRandy Dunlap2006-07-03
| | | | | | | Add and use poison defines in net/. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Fix ipv6 GSO payload lengthMichael Chan2006-07-03
| | | | | | | | | | Fix ipv6 GSO payload length calculation. The ipv6 payload length excludes the ipv6 base header length and so must be subtracted. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Verify gso_type too in gso_segmentHerbert Xu2006-07-03
| | | | | | | | We don't want nasty Xen guests to pass a TCPv6 packet in with gso_type set to TCPv4 or even UDP (or a packet that's both TCP and UDP). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-06-30
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [IPV6]: Added GSO support for TCPv6 [NET]: Generalise TSO-specific bits from skb_setup_caps [IPV6]: Added GSO support for TCPv6 [IPV6]: Remove redundant length check on input [NETFILTER]: SCTP conntrack: fix crash triggered by packet without chunks [TG3]: Update version and reldate [TG3]: Add TSO workaround using GSO [TG3]: Turn on hw fix for ASF problems [TG3]: Add rx BD workaround [TG3]: Add tg3_netif_stop() in vlan functions [TCP]: Reset gso_segs if packet is dodgy
| * [IPV6]: Added GSO support for TCPv6Herbert Xu2006-06-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds GSO support for IPv6 and TCPv6. This is based on a patch by Ananda Raju <Ananda.Raju@neterion.com>. His original description is: This patch enables TSO over IPv6. Currently Linux network stacks restricts TSO over IPv6 by clearing of the NETIF_F_TSO bit from "dev->features". This patch will remove this restriction. This patch will introduce a new flag NETIF_F_TSO6 which will be used to check whether device supports TSO over IPv6. If device support TSO over IPv6 then we don't clear of NETIF_F_TSO and which will make the TCP layer to create TSO packets. Any device supporting TSO over IPv6 will set NETIF_F_TSO6 flag in "dev->features" along with NETIF_F_TSO. In case when user disables TSO using ethtool, NETIF_F_TSO will get cleared from "dev->features". So even if we have NETIF_F_TSO6 we don't get TSO packets created by TCP layer. SKB_GSO_TCPV4 renamed to SKB_GSO_TCP to make it generic GSO packet. SKB_GSO_UDPV4 renamed to SKB_GSO_UDP as UFO is not a IPv4 feature. UFO is supported over IPv6 also The following table shows there is significant improvement in throughput with normal frames and CPU usage for both normal and jumbo. -------------------------------------------------- | | 1500 | 9600 | | ------------------|-------------------| | | thru CPU | thru CPU | -------------------------------------------------- | TSO OFF | 2.00 5.5% id | 5.66 20.0% id | -------------------------------------------------- | TSO ON | 2.63 78.0 id | 5.67 39.0% id | -------------------------------------------------- Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV6]: Added GSO support for TCPv6Herbert Xu2006-06-30
| | | | | | | | | | | | | | This patch adds GSO support for IPv6 and TCPv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV6]: Remove redundant length check on inputHerbert Xu2006-06-30
| | | | | | | | | | | | | | | | | | We don't need to check skb->len when we're just about to call pskb_may_pull since that checks it for us. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
|/ | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [TCP]: Export accept queue len of a TCP listening socket via rx_queueSridhar Samudrala2006-06-29
| | | | | | | | | | | | | While debugging a TCP server hang issue, we noticed that currently there is no way for a user to get the acceptq backlog value for a TCP listen socket. All the standard networking utilities that display socket info like netstat, ss and /proc/net/tcp have 2 fields called rx_queue and tx_queue. These fields do not mean much for listening sockets. This patch uses one of these unused fields(rx_queue) to export the accept queue len for listening sockets. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Encapsulate eff_cap usage within security framework.Darrel Goeddel2006-06-29
| | | | | | | | | | | | | | | | This patch encapsulates the usage of eff_cap (in netlink_skb_params) within the security framework by extending security_netlink_recv to include a required capability parameter and converting all direct usage of eff_caps outside of the lsm modules to use the interface. It also updates the SELinux implementation of the security_netlink_send and security_netlink_recv hooks to take advantage of the sid in the netlink_skb_params struct. This also enables SELinux to perform auditing of netlink capability checks. Please apply, for 2.6.18 if possible. Signed-off-by: Darrel Goeddel <dgoeddel@trustedcs.com> Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: x_tables: fix xt_register_table error propagationPatrick McHardy2006-06-29
| | | | | | | | When xt_register_table fails the error is not properly propagated back. Based on patch by Lepton Wu <ytht.net@gmail.com>. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] spin/rwlock init cleanupsIngo Molnar2006-06-27
| | | | | | | | | | | | | | | | | | | | | locking init cleanups: - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK() - convert rwlocks in a similar manner this patch was generated automatically. Motivation: - cleanliness - lockdep needs control of lock initialization, which the open-coded variants do not give - it's also useful for -rt and for lock debugging in general Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [IPSEC]: Handle GSO packetsHerbert Xu2006-06-23
| | | | | | | | | | | | | | | | This patch segments GSO packets received by the IPsec stack. This can happen when a NIC driver injects GSO packets into the stack which are then forwarded to another host. The primary application of this is going to be Xen where its backend driver may inject GSO packets into dom0. Of course this also can be used by other virtualisation schemes such as VMWare or UML since the tap device could be modified to inject GSO packets received through splice. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Merge TSO/UFO fields in sk_buffHerbert Xu2006-06-23
| | | | | | | | | | | | | | | | | | | | | | | | Having separate fields in sk_buff for TSO/UFO (tso_size/ufo_size) is not going to scale if we add any more segmentation methods (e.g., DCCP). So let's merge them. They were used to tell the protocol of a packet. This function has been subsumed by the new gso_type field. This is essentially a set of netdev feature bits (shifted by 16 bits) that are required to process a specific skb. As such it's easy to tell whether a given device can process a GSO skb: you just have to and the gso_type field and the netdev's features field. I've made gso_type a conjunction. The idea is that you have a base type (e.g., SKB_GSO_TCPV4) that can be modified further to support new features. For example, if we add a hardware TSO type that supports ECN, they would declare NETIF_F_TSO | NETIF_F_TSO_ECN. All TSO packets with CWR set would have a gso_type of SKB_GSO_TCPV4 | SKB_GSO_TCPV4_ECN while all other TSO packets would be SKB_GSO_TCPV4. This means that only the CWR packets need to be emulated in software. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6] ADDRCONF: Fix default source address selection without ↵YOSHIFUJI Hideaki2006-06-23
| | | | | | | | | | CONFIG_IPV6_PRIVACY We need to update hiscore.rule even if we don't enable CONFIG_IPV6_PRIVACY, because we have more less significant rule; longest match. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Fix source address selection.Łukasz Stelmach2006-06-23
| | | | | | | | | | | | | Two additional labels (RFC 3484, sec. 10.3) for IPv6 addreses are defined to make a distinction between global unicast addresses and Unique Local Addresses (fc00::/7, RFC 4193) and Teredo (2001::/32, RFC 4380). It is necessary to avoid attempts of connection that would either fail (eg. fec0:: to 2001:feed::) or be sub-optimal (2001:0:: to 2001:feed::). Signed-off-by: Łukasz Stelmach <stlman@poczta.fm> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Sum real space for RTAs.YOSHIFUJI Hideaki2006-06-18
| | | | | | | | | This patch fixes RTNLGRP_IPV6_IFINFO netlink notifications. Issue pointed out by Patrick McHardy <kaber@trash.net>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: skb_trim auditHerbert Xu2006-06-18
| | | | | | | | | | | I found a few more spots where pskb_trim_rcsum could be used but were not. This patch changes them to use it. Also, sk_filter can get paged skb data. Therefore we must use pskb_trim instead of skb_trim. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Clean up skb_linearizeHerbert Xu2006-06-18
| | | | | | | | | | | | | | | | | | | | | | | The linearisation operation doesn't need to be super-optimised. So we can replace __skb_linearize with __pskb_pull_tail which does the same thing but is more general. Also, most users of skb_linearize end up testing whether the skb is linear or not so it helps to make skb_linearize do just that. Some callers of skb_linearize also use it to copy cloned data, so it's useful to have a new function skb_linearize_cow to copy the data if it's either non-linear or cloned. Last but not least, I've removed the gfp argument since nobody uses it anymore. If it's ever needed we can easily add it back. Misc bugs fixed by this patch: * via-velocity error handling (also, no SG => no frags) Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SECMARK]: Add secmark support to core networking.James Morris2006-06-18
| | | | | | | | | | | | | Add a secmark field to the skbuff structure, to allow security subsystems to place security markings on network packets. This is similar to the nfmark field, except is intended for implementing security policy, rather than than networking policy. This patch was already acked in principle by Dave Miller. Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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