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* net: Put fl6_* macros to struct flowi6 and use them again.David S. Miller2011-03-121-3/+3
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Convert to use flowi6 where applicable.David S. Miller2011-03-121-40/+39
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Make flowi ports AF dependent.David S. Miller2011-03-121-3/+3
| | | | | | | | | | | | Create two sets of port member accessors, one set prefixed by fl4_* and the other prefixed by fl6_* This will let us to create AF optimal flow instances. It will work because every context in which we access the ports, we have to be fully aware of which AF the flowi is anyways. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Put flowi_* prefix on AF independent members of struct flowiDavid S. Miller2011-03-121-10/+10
| | | | | | | | | | I intend to turn struct flowi into a union of AF specific flowi structs. There will be a common structure that each variant includes first, much like struct sock_common. This is the first step to move in that direction. Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Consolidate route lookup sequences.David S. Miller2011-03-011-12/+3
| | | | | | | | | | | | | | | | | | | | | Route lookups follow a general pattern in the ipv6 code wherein we first find the non-IPSEC route, potentially override the flow destination address due to ipv6 options settings, and then finally make an IPSEC search using either xfrm_lookup() or __xfrm_lookup(). __xfrm_lookup() is used when we want to generate a blackhole route if the key manager needs to resolve the IPSEC rules (in this case -EREMOTE is returned and the original 'dst' is left unchanged). Otherwise plain xfrm_lookup() is used and when asynchronous IPSEC resolution is necessary, we simply fail the lookup completely. All of these cases are encapsulated into two routines, ip6_dst_lookup_flow and ip6_sk_dst_lookup_flow. The latter of which handles unconnected UDP datagram sockets. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2011-02-041-0/+19
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
| * net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6.David S. Miller2011-02-031-0/+19
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipv6: raw: rcu annotationsEric Dumazet2011-01-201-7/+7
|/ | | | | | | | Remove sparse warnings, using a function typedef to be able to use __rcu annotation on mh_filter pointer. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: add __rcu annotation to sk_filterEric Dumazet2010-10-251-1/+1
| | | | | | | | | | | Add __rcu annotation to : (struct sock)->sk_filter And use appropriate rcu primitives to reduce sparse warnings if CONFIG_SPARSE_RCU_POINTER=y Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: return operator cleanupEric Dumazet2010-09-231-6/+6
| | | | | | | | | Change "return (EXPR);" to "return EXPR;" return is not a function, parentheses are not required. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-next: remove useless union keywordChangli Gao2010-06-101-6/+6
| | | | | | | | | | remove useless union keyword in rtable, rt6_info and dn_route. Since there is only one member in a union, the union keyword isn't useful. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* raw: avoid two atomics in xmitEric Dumazet2010-06-071-5/+7
| | | | | | | | | Avoid two atomic ops per raw_send_hdrinc() call Avoid two atomic ops per raw6_send_hdrinc() call Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Refactor update of IPv6 flowi destination address for srcrt (RH) optionArnaud Ebalard2010-06-021-8/+2
| | | | | | | | | | | | | | | | | | | There are more than a dozen occurrences of following code in the IPv6 stack: if (opt && opt->srcrt) { struct rt0_hdr *rt0 = (struct rt0_hdr *) opt->srcrt; ipv6_addr_copy(&final, &fl.fl6_dst); ipv6_addr_copy(&fl.fl6_dst, rt0->addr); final_p = &final; } Replace those with a helper. Note that the helper overrides final_p in all cases. This is ok as final_p was previously initialized to NULL when declared. Signed-off-by: Arnaud Ebalard <arno@natisbad.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of /repos/git/net-next-2.6Patrick McHardy2010-05-101-3/+11
|\ | | | | | | | | | | | | | | Conflicts: net/bridge/br_device.c net/bridge/br_forward.c Signed-off-by: Patrick McHardy <kaber@trash.net>
| * net: ip_queue_rcv_skb() helperEric Dumazet2010-04-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | When queueing a skb to socket, we can immediately release its dst if target socket do not use IP_CMSG_PKTINFO. tcp_data_queue() can drop dst too. This to benefit from a hot cache line and avoid the receiver, possibly on another cpu, to dirty this cache line himself. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * IPv6: Complete IPV6_DONTFRAG supportBrian Haley2010-04-231-0/+3
| | | | | | | | | | | | | | | | | | | | Finally add support to detect a local IPV6_DONTFRAG event and return the relevant data to the user if they've enabled IPV6_RECVPATHMTU on the socket. The next recvmsg() will return no data, but have an IPV6_PATHMTU as ancillary data. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * IPv6: Add dontfrag argument to relevant functionsBrian Haley2010-04-231-2/+7
| | | | | | | | | | | | | | | | | | Add dontfrag argument to relevant functions for IPV6_DONTFRAG support, as well as allowing the value to be passed-in via ancillary cmsg data. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of /repos/git/net-next-2.6Patrick McHardy2010-04-201-0/+1
|\| | | | | | | | | | | | | | | | | Conflicts: Documentation/feature-removal-schedule.txt net/ipv6/netfilter/ip6t_REJECT.c net/netfilter/xt_limit.c Signed-off-by: Patrick McHardy <kaber@trash.net>
| * include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* | netfilter: ipv6: use NFPROTO values for NF_HOOK invocationJan Engelhardt2010-03-251-2/+2
|/ | | | | | | | | | | | | | | | | The semantic patch that was used: // <smpl> @@ @@ (NF_HOOK |NF_HOOK_THRESH |nf_hook )( -PF_INET6, +NFPROTO_IPV6, ...) // </smpl> Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* net: spread __net_init, __net_exitAlexey Dobriyan2010-01-171-2/+2
| | | | | | | | | | | __net_init/__net_exit are apparently not going away, so use them to full extent. In some cases __net_init was removed, because it was called from __net_exit code. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: avoid dev_hold()/dev_put() in rawv6_bind()Eric Dumazet2009-11-081-12/+11
| | | | | | | Using RCU helps not touching device refcount in rawv6_bind() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: drop capability from protocol definitionsEric Paris2009-11-051-1/+0
| | | | | | | | | | | | struct can_proto had a capability field which wasn't ever used. It is dropped entirely. struct inet_protosw had a capability field which can be more clearly expressed in the code by just checking if sock->type = SOCK_RAW. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: sk_drops consolidation part 2Eric Dumazet2009-10-181-1/+0
| | | | | | | | | - skb_kill_datagram() can increment sk->sk_drops itself, not callers. - UDP on IPV4 & IPV6 dropped frames (because of bad checksum or policy checks) increment sk_drops Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* inet: rename some inet_sock fieldsEric Dumazet2009-10-181-15/+15
| | | | | | | | | | | | | | | | In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: sk_drops consolidationEric Dumazet2009-10-141-2/+1
| | | | | | | | | | | sock_queue_rcv_skb() can update sk_drops itself, removing need for callers to take care of it. This is more consistent since sock_queue_rcv_skb() also reads sk_drops when queueing a skb. This adds sk_drops managment to many protocols that not cared yet. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Generalize socket rx gap / receive queue overflow cmsgNeil Horman2009-10-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a new socket level option to report number of queue overflows Recently I augmented the AF_PACKET protocol to report the number of frames lost on the socket receive queue between any two enqueued frames. This value was exported via a SOL_PACKET level cmsg. AFter I completed that work it was requested that this feature be generalized so that any datagram oriented socket could make use of this option. As such I've created this patch, It creates a new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue overflowed between any two given frames. It also augments the AF_PACKET protocol to take advantage of this new feature (as it previously did not touch sk->sk_drops, which this patch uses to record the overflow count). Tested successfully by me. Notes: 1) Unlike my previous patch, this patch simply records the sk_drops value, which is not a number of drops between packets, but rather a total number of drops. Deltas must be computed in user space. 2) While this patch currently works with datagram oriented protocols, it will also be accepted by non-datagram oriented protocols. I'm not sure if thats agreeable to everyone, but my argument in favor of doing so is that, for those protocols which aren't applicable to this option, sk_drops will always be zero, and reporting no drops on a receive queue that isn't used for those non-participating protocols seems reasonable to me. This also saves us having to code in a per-protocol opt in mechanism. 3) This applies cleanly to net-next assuming that commit 977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is reverted Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Make setsockopt() optlen be unsigned.David S. Miller2009-09-301-3/+3
| | | | | | | | | | | | This provides safety against negative optlen at the type level instead of depending upon (sometimes non-trivial) checks against this sprinkled all over the the place, in each and every implementation. Based upon work done by Arjan van de Ven and feedback from Linus Torvalds. Signed-off-by: David S. Miller <davem@davemloft.net>
* ip: Report qdisc packet dropsEric Dumazet2009-09-021-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Christoph Lameter pointed out that packet drops at qdisc level where not accounted in SNMP counters. Only if application sets IP_RECVERR, drops are reported to user (-ENOBUFS errors) and SNMP counters updated. IP_RECVERR is used to enable extended reliable error message passing, but these are not needed to update system wide SNMP stats. This patch changes things a bit to allow SNMP counters to be updated, regardless of IP_RECVERR being set or not on the socket. Example after an UDP tx flood # netstat -s ... IP: 1487048 outgoing packets dropped ... Udp: ... SndbufErrors: 1487048 send() syscalls, do however still return an OK status, to not break applications. Note : send() manual page explicitly says for -ENOBUFS error : "The output queue for a network interface was full. This generally indicates that the interface has stopped sending, but may be caused by transient congestion. (Normally, this does not occur in Linux. Packets are just silently dropped when a device queue overflows.) " This is not true for IP_RECVERR enabled sockets : a send() syscall that hit a qdisc drop returns an ENOBUFS error. Many thanks to Christoph, David, and last but not least, Alexey ! Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* inet6: Conversion from u8 to intGerrit Renker2009-08-131-4/+1
| | | | | | | | | This replaces assignments of the type "int on LHS" = "u8 on RHS" with simpler code. The LHS can express all of the unsigned right hand side values, hence the assigned value can not be negative. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Use correct data types for ICMPv6 type and codeBrian Haley2009-06-231-2/+2
| | | | | | | | | Change all the code that deals directly with ICMPv6 type and code values to use u8 instead of a signed int as that's the actual data type. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: correct off-by-one write allocations reportsEric Dumazet2009-06-181-3/+4
| | | | | | | | | | | | | commit 2b85a34e911bf483c27cfdd124aeb1605145dc80 (net: No more expensive sock_hold()/sock_put() on each tx) changed initial sk_wmem_alloc value. We need to take into account this offset when reporting sk_wmem_alloc to user, in PROC_FS files or various ioctls (SIOCOUTQ/TIOCOUTQ) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: skb->dst accessorsEric Dumazet2009-06-031-1/+1
| | | | | | | | | | | | | | | | | | Define three accessors to get/set dst attached to a skb struct dst_entry *skb_dst(const struct sk_buff *skb) void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst) void skb_dst_drop(struct sk_buff *skb) This one should replace occurrences of : dst_release(skb->dst) skb->dst = NULL; Delete skb->dst field Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* snmp: add missing counters for RFC 4293Neil Horman2009-04-271-1/+1
| | | | | | | | | | | | | | The IP MIB (RFC 4293) defines stats for InOctets, OutOctets, InMcastOctets and OutMcastOctets: http://tools.ietf.org/html/rfc4293 But it seems we don't track those in any way that easy to separate from other protocols. This patch adds those missing counters to the stats file. Tested successfully by me With help from Eric Dumazet. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netns xfrm: lookup in netnsAlexey Dobriyan2008-11-251-1/+2
| | | | | | | | | | Pass netns to xfrm_lookup()/__xfrm_lookup(). For that pass netns to flow_cache_lookup() and resolver callback. Take it from socket or netdevice. Stub DECnet to init_net. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netns: add net parameter to IP6_INC_STATSDenis V. Lunev2008-10-081-2/+2
| | | | | Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: When we droped a packet, we should return NET_RX_DROP instead of 0Yang Hongyang2008-08-291-3/+3
| | | | | Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: remove unused parameter from ip6_ra_controlDenis V. Lunev2008-07-191-1/+1
| | | | | Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* udp: sk_drops handlingEric Dumazet2008-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commits 33c732c36169d7022ad7d6eb474b0c9be43a2dc1 ([IPV4]: Add raw drops counter) and a92aa318b4b369091fd80433c80e62838db8bc1c ([IPV6]: Add raw drops counter), Wang Chen added raw drops counter for /proc/net/raw & /proc/net/raw6 This patch adds this capability to UDP sockets too (/proc/net/udp & /proc/net/udp6). This means that 'RcvbufErrors' errors found in /proc/net/snmp can be also be examined for each udp socket. # grep Udp: /proc/net/snmp Udp: InDatagrams NoPorts InErrors OutDatagrams RcvbufErrors SndbufErrors Udp: 23971006 75 899420 16390693 146348 0 # cat /proc/net/udp sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt --- uid timeout inode ref pointer drops 75: 00000000:02CB 00000000:0000 07 00000000:00000000 00:00000000 00000000 --- 0 0 2358 2 ffff81082a538c80 0 111: 00000000:006F 00000000:0000 07 00000000:00000000 00:00000000 00000000 --- 0 0 2286 2 ffff81042dd35c80 146348 In this example, only port 111 (0x006F) was flooded by messages that user program could not read fast enough. 146348 messages were lost. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: change proto destroy method to return voidBrian Haley2008-06-141-2/+2
| | | | | | | | Change struct proto destroy function pointer to return void. Noticed by Al Viro. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2008-06-131-2/+2
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/smc911x.c
| * ipv6: Fix duplicate initialization of rawv6_prot.destroyDavid S. Miller2008-06-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In changeset 22dd485022f3d0b162ceb5e67d85de7c3806aa20 ("raw: Raw socket leak.") code was added so that we flush pending frames on raw sockets to avoid leaks. The ipv4 part was fine, but the ipv6 part was not done correctly. Unlike the ipv4 side, the ipv6 code already has a .destroy method for rawv6_prot. So now there were two assignments to this member, and what the compiler does is use the last one, effectively making the ipv6 parts of that changeset a NOP. Fix this by removing the: .destroy = inet6_destroy_sock, line, and adding an inet6_destroy_sock() call to the end of raw6_destroy(). Noticed by Al Viro. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* | net: remove CVS keywordsAdrian Bunk2008-06-111-2/+0
|/ | | | | | | | This patch removes CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* raw: Raw socket leak.Denis V. Lunev2008-06-041-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | The program below just leaks the raw kernel socket int main() { int fd = socket(PF_INET, SOCK_RAW, IPPROTO_UDP); struct sockaddr_in addr; memset(&addr, 0, sizeof(addr)); inet_aton("127.0.0.1", &addr.sin_addr); addr.sin_family = AF_INET; addr.sin_port = htons(2048); sendto(fd, "a", 1, MSG_MORE, &addr, sizeof(addr)); return 0; } Corked packet is allocated via sock_wmalloc which holds the owner socket, so one should uncork it and flush all pending data on close. Do this in the same way as in UDP. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6] NETNS: Handle ancillary data in appropriate namespace.YOSHIFUJI Hideaki2008-06-051-1/+1
| | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* net: Allow netdevices to specify needed head/tailroomJohannes Berg2008-05-121-6/+4
| | | | | | | | | | This patch adds needed_headroom/needed_tailroom members to struct net_device and updates many places that allocate sbks to use them. Not all of them can be converted though, and I'm sure I missed some (I mostly grepped for LL_RESERVED_SPACE) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6 RAW: Disallow IPPROTO_IPV6-level IPV6_CHECKSUM socket option on ICMPv6 ↵YOSHIFUJI Hideaki2008-04-241-0/+18
| | | | | | | | | | | sockets. RFC3542 tells that IPV6_CHECKSUM socket option in the IPPROTO_IPV6 level is not allowed on ICMPv6 sockets. IPPROTO_RAW level IPV6_CHECKSUM socket option (a Linux extension) is still allowed. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Fix IPV6_RECVERR for connected raw sockets.YOSHIFUJI Hideaki2008-04-121-2/+4
| | | | | | | Based on patch from Dmitry Butskoy <buc@odusz.so-cdu.ru>. Closes: 10437 Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPv6]: Change IPv6 unspecified destination address to ::1 for raw and ↵Brian Haley2008-04-121-10/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | un-connected sockets This patch fixes a difference between IPv4 and IPv6 when sending packets to the unspecified address (either 0.0.0.0 or ::) when using raw or un-connected UDP sockets. There are two cases where IPv6 either fails to send anything, or sends with the destination address set to ::. For example: --> ping -c1 0.0.0.0 PING 0.0.0.0 (127.0.0.1) 56(84) bytes of data. 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.032 ms --> ping6 -c1 :: PING ::(::) 56 data bytes ping: sendmsg: Invalid argument Doing a sendto("0.0.0.0") reveals: 10:55:01.495090 IP localhost.32780 > localhost.7639: UDP, length 100 Doing a sendto("::") reveals: 10:56:13.262478 IP6 fe80::217:8ff:fe7d:4718.32779 > ::.7639: UDP, length 100 If you issue a connect() first in the UDP case, it will be sent to ::1, similar to what happens with TCP. This restores the BSD-ism. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* [IPV6] MROUTE: Support multicast forwarding.YOSHIFUJI Hideaki2008-04-051-1/+6
| | | | | | | | Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
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