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* snmp: 64bit ipstats_mib for all archesEric Dumazet2010-06-301-6/+14
| | | | | | | | | | | | | | | | | | | | /proc/net/snmp and /proc/net/netstat expose SNMP counters. Width of these counters is either 32 or 64 bits, depending on the size of "unsigned long" in kernel. This means user program parsing these files must already be prepared to deal with 64bit values, regardless of user program being 32 or 64 bit. This patch introduces 64bit snmp values for IPSTAT mib, where some counters can wrap pretty fast if they are 32bit wide. # netstat -s|egrep "InOctets|OutOctets" InOctets: 244068329096 OutOctets: 244069348848 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* snmp: add align parameter to snmp_mib_init()Eric Dumazet2010-06-251-1/+1
| | | | | | | | | | | | | | | | In preparation for 64bit snmp counters for some mibs, add an 'align' parameter to snmp_mib_init(), instead of assuming mibs only contain 'unsigned long' fields. Callers can use __alignof__(type) to provide correct alignment. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Herbert Xu <herbert@gondor.apana.org.au> CC: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> CC: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ip: ip_ra_control() rcu fixEric Dumazet2010-06-101-1/+4
| | | | | | | | | | | | | | | | commit 66018506e15b (ip: Router Alert RCU conversion) introduced RCU lookups to ip_call_ra_chain(). It missed proper deinit phase : When ip_ra_control() deletes an ip_ra_chain, it should make sure ip_call_ra_chain() users can not start to use socket during the rcu grace period. It should also delay the sock_put() after the grace period, or we risk a premature socket freeing and corruptions, as raw sockets are not rcu protected yet. This delay avoids using expensive atomic_inc_not_zero() in ip_call_ra_chain(). Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ip: Router Alert RCU conversionEric Dumazet2010-06-071-1/+1
| | | | | | | | | Straightforward conversion to RCU. One rwlock becomes a spinlock, and is static. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, ↵Alexey Dobriyan2010-05-251-3/+3
| | | | | | | | | | | | | | | | SHRT_MAX and SHRT_MIN - C99 knows about USHRT_MAX/SHRT_MAX/SHRT_MIN, not USHORT_MAX/SHORT_MAX/SHORT_MIN. - Make SHRT_MIN of type s16, not int, for consistency. [akpm@linux-foundation.org: fix drivers/dma/timb_dma.c] [akpm@linux-foundation.org: fix security/keys/keyring.c] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* net: reserve ports for applications using fixed port numbersAmerigo Wang2010-05-151-0/+6
| | | | | | | | | | | | | | | | | | | (Dropped the infiniband part, because Tetsuo modified the related code, I will send a separate patch for it once this is accepted.) This patch introduces /proc/sys/net/ipv4/ip_local_reserved_ports which allows users to reserve ports for third-party applications. The reserved ports will not be used by automatic port assignments (e.g. when calling connect() or bind() with port number 0). Explicit port allocation behavior is unchanged. Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: WANG Cong <amwang@redhat.com> Cc: Neil Horman <nhorman@tuxdriver.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ip_queue_rcv_skb() helperEric Dumazet2010-04-281-0/+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>
* net: replace ipfragok with skb->local_dfShan Wei2010-04-151-1/+1
| | | | | | | | | | | As Herbert Xu said: we should be able to simply replace ipfragok with skb->local_df. commit f88037(sctp: Drop ipfargok in sctp_xmit function) has droped ipfragok and set local_df value properly. The patch kills the ipfragok parameter of .queue_xmit(). Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* percpu: add __percpu sparse annotations to netTejun Heo2010-02-161-3/+3
| | | | | | | | | | | | | | | | | | | | | | Add __percpu sparse annotations to net. These annotations are to make sparse consider percpu variables to be in a different address space and warn if accessed without going through percpu accessors. This patch doesn't affect normal builds. The macro and type tricks around snmp stats make things a bit interesting. DEFINE/DECLARE_SNMP_STAT() macros mark the target field as __percpu and SNMP_UPD_PO_STATS() macro is updated accordingly. All snmp_mib_*() users which used to cast the argument to (void **) are updated to cast it to (void __percpu **). Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Vlad Yasevich <vladislav.yasevich@hp.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: nf_conntrack: add support for "conntrack zones"Patrick McHardy2010-02-151-0/+3
| | | | | | | | | | | | | Normally, each connection needs a unique identity. Conntrack zones allow to specify a numerical zone using the CT target, connections in different zones can use the same identity. Example: iptables -t raw -A PREROUTING -i veth0 -j CT --zone 1 iptables -t raw -A OUTPUT -o veth1 -j CT --zone 1 Signed-off-by: Patrick McHardy <kaber@trash.net>
* net: fix build erros with CONFIG_BUG=n, CONFIG_GENERIC_BUG=nOctavian Purdila2010-01-131-1/+1
| | | | | | | | Fixed build errors introduced by commit 7ad6848c (ip: fix mc_loop checks for tunnels with multicast outer addresses) Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ip: fix mc_loop checks for tunnels with multicast outer addressesOctavian Purdila2010-01-061-0/+16
| | | | | | | | | | | | | | | | When we have L3 tunnels with different inner/outer families (i.e. IPV4/IPV6) which use a multicast address as the outer tunnel destination address, multicast packets will be loopbacked back to the sending socket even if IP*_MULTICAST_LOOP is set to disabled. The mc_loop flag is present in the family specific part of the socket (e.g. the IPv4 or IPv4 specific part). setsockopt sets the inner family mc_loop flag. When the packet is pushed through the L3 tunnel it will eventually be processed by the outer family which if different will check the flag in a different part of the socket then it was set. Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: fix crashes in bridge netfilter caused by fragment jumpsPatrick McHardy2009-12-151-0/+1
| | | | | | | | | | | | | | | | | | | When fragments from bridge netfilter are passed to IPv4 or IPv6 conntrack and a reassembly queue with the same fragment key already exists from reassembling a similar packet received on a different device (f.i. with multicasted fragments), the reassembled packet might continue on a different codepath than where the head fragment originated. This can cause crashes in bridge netfilter when a fragment received on a non-bridge device (and thus with skb->nf_bridge == NULL) continues through the bridge netfilter code. Add a new reassembly identifier for packets originating from bridge netfilter and use it to put those packets in insolated queues. Fixes http://bugzilla.kernel.org/show_bug.cgi?id=14805 Reported-and-Tested-by: Chong Qiao <qiaochong@loongson.cn> Signed-off-by: Patrick McHardy <kaber@trash.net>
* net: cleanup include/netEric Dumazet2009-11-041-10/+5
| | | | | | | | | | | | | | | This cleanup patch puts struct/union/enum opening braces, in first line to ease grep games. struct something { becomes : struct something { Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* inet: rename some inet_sock fieldsEric Dumazet2009-10-181-6/+6
| | | | | | | | | | | | | | | | 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: Make setsockopt() optlen be unsigned.David S. Miller2009-09-301-2/+2
| | | | | | | | | | | | 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>
* sysctl: remove "struct file *" argument of ->proc_handlerAlexey Dobriyan2009-09-241-1/+1
| | | | | | | | | | | | | | | | | | | | | It's unused. It isn't needed -- read or write flag is already passed and sysctl shouldn't care about the rest. It _was_ used in two places at arch/frv for some reason. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* snmp: add missing counters for RFC 4293Neil Horman2009-04-271-0/+3
| | | | | | | | | | | | | | 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>
* ip: support for TX timestamps on UDP and RAW socketsPatrick Ohly2009-02-151-0/+1
| | | | | | | | Instructions for time stamping outgoing packets are take from the socket layer and later copied into the new skb. Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netns xfrm: per-netns sysctlsAlexey Dobriyan2008-11-251-0/+1
| | | | | | | | | | | | | | | | | Make net.core.xfrm_aevent_etime net.core.xfrm_acq_expires net.core.xfrm_aevent_rseqth net.core.xfrm_larval_drop sysctls per-netns. For that make net_core_path[] global, register it to prevent two /proc/net/core antries and change initcall position -- xfrm_init() is called from fs_initcall, so this one should be fs_initcall at least. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: avoid a pair of dst_hold()/dst_release() in ip_append_data()Eric Dumazet2008-11-241-1/+1
| | | | | | | | | | | | | | | | | We can reduce pressure on dst entry refcount that slowdown UDP transmit path on SMP machines. This pressure is visible on RTP servers when delivering content to mediagateways, especially big ones, handling thousand of streams. Several cpus send UDP frames to the same destination, hence use the same dst entry. This patch makes ip_append_data() eventually steal the refcount its callers had to take on the dst entry. This doesnt avoid all refcounting, but still gives speedups on SMP, on UDP/RAW transmit path Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sysctl: simplify ->strategyAlexey Dobriyan2008-10-161-1/+1
| | | | | | | | | | | | | | | | name and nlen parameters passed to ->strategy hook are unused, remove them. In general ->strategy hook should know what it's doing, and don't do something tricky for which, say, pointer to original userspace array may be needed (name). Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> [ networking bits ] Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Howells <dhowells@redhat.com> Cc: Matt Mackall <mpm@selenic.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* inet: cleanup of local_port_rangeEric Dumazet2008-10-081-0/+4
| | | | | | | | | | | | | | | | | | I noticed sysctl_local_port_range[] and its associated seqlock sysctl_local_port_range_lock were on separate cache lines. Moreover, sysctl_local_port_range[] was close to unrelated variables, highly modified, leading to cache misses. Moving these two variables in a structure can help data locality and moving this structure to read_mostly section helps sharing of this data among cpus. Cleanup of extern declarations (moved in include file where they belong), and use of inet_get_local_port_range() accessor instead of direct access to ports values. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv4: Make Netfilter's ip_route_me_harder() non-local address compatibleKOVACS Krisztian2008-10-011-0/+6
| | | | | | | | | | | Netfilter's ip_route_me_harder() tries to re-route packets either generated or re-routed by Netfilter. This patch changes ip_route_me_harder() to handle packets from non-locally-bound sockets with IP_TRANSPARENT set as local and to set the appropriate flowi flags when re-doing the routing lookup. Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by: David S. Miller <davem@davemloft.net>
* tcp: Handle TCP SYN+ACK/ACK/RST transparencyKOVACS Krisztian2008-10-011-0/+3
| | | | | | | | | | | | | | The TCP stack sends out SYN+ACK/ACK/RST reply packets in response to incoming packets. The non-local source address check on output bites us again, as replies for transparently redirected traffic won't have a chance to leave the node. This patch selectively sets the FLOWI_FLAG_ANYSRC flag when doing the route lookup for those replies. Transparent replies are enabled if the listening socket has the transparent socket flag set. Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] sysctl: make sure that /proc/sys/net/ipv4 appears before per-ns onesAl Viro2008-07-261-0/+2
| | | | | | | | | | Massage ipv4 initialization - make sure that net.ipv4 appears as non-per-net-namespace before it shows up in per-net-namespace sysctls. That's the only change outside of sysctl.c needed to get sane ordering rules and data structures for sysctls (esp. for procfs side of that mess). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* mib: put net statistics on struct netPavel Emelyanov2008-07-181-6/+5
| | | | | | | Similar to ip and tcp ones :) Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: put ip statistics on struct netPavel Emelyanov2008-07-181-4/+3
| | | | | | | Similar to tcp one. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: add net to NET_ADD_STATS_USERPavel Emelyanov2008-07-161-1/+1
| | | | | | | | | Done with NET_XXX_STATS macros :) To be continued... Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: add net to NET_ADD_STATS_BHPavel Emelyanov2008-07-161-1/+1
| | | | | | | | | | | | This one is tricky. The thing is that this macro is only used when killing tw buckets, but since this killer is promiscuous wrt to which net each particular tw belongs to, I have to use it only when NET_NS is off. When the net namespaces are on, I use the INET_INC_STATS_BH for each bucket. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: add net to NET_INC_STATS_USERPavel Emelyanov2008-07-161-1/+1
| | | | | Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: add net to NET_INC_STATS_BHPavel Emelyanov2008-07-161-1/+1
| | | | | Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: add net to NET_INC_STATSPavel Emelyanov2008-07-161-1/+1
| | | | | Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: add net to IP_ADD_STATS_BHPavel Emelyanov2008-07-161-1/+1
| | | | | | | | Very simple - only ip_evictor (fragments) requires such. This patch ends up the IP_XXX_STATS patching. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: add net to IP_INC_STATS_BHPavel Emelyanov2008-07-161-1/+1
| | | | | Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: add net to IP_INC_STATSPavel Emelyanov2008-07-161-1/+1
| | | | | | | | All the callers already have either the net itself, or the place where to get it from. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: drop unused IP_INC_STATS_USERPavel Emelyanov2008-07-161-1/+0
| | | | | Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* ip: Make use of the inline function dst_metric_locked()Satoru SATOH2008-05-041-1/+1
| | | | | Signed-off-by: Satoru SATOH <satoru.satoh@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS]: Add namespace parameter to ip_cmsg_send.Denis V. Lunev2008-03-241-1/+2
| | | | | | | Pass the init_net there for now. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS]: Add namespace parameter to ip_options_get(...).Denis V. Lunev2008-03-241-2/+2
| | | | | | | Pass the init_net there for now. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS]: Add namespace parameter to ip_options_compile.Denis V. Lunev2008-03-241-1/+2
| | | | | | | | | ip_options_compile uses inet_addr_type which requires a namespace. The packet argument is optional, so parameter is the only way to obtain it. Pass the init_net there for now. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS][FRAGS]: Make the mem counter per-namespace.Pavel Emelyanov2008-01-281-1/+1
| | | | | | | | This is also simple, but introduces more changes, since then mem counter is altered in more places. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS][FRAGS]: Make the nqueues counter per-namespace.Pavel Emelyanov2008-01-281-1/+1
| | | | | | | | This is simple - just move the variable from struct inet_frags to struct netns_frags and adjust the usage appropriately. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS][FRAGS]: Move ctl tables around.Pavel Emelyanov2008-01-281-5/+0
| | | | | | | | | | | | | | | | This is a preparation for sysctl netns-ization. Move the ctl tables to the files, where the tuning variables reside. Plus make the helpers to register the tables. This will simplify the later patches and will keep similar things closer to each other. ipv4, ipv6 and conntrack_reasm are patched differently, but the result is all the tables are in appropriate files. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: Switch to using ctl_paths in nf_queue and conntrack modulesPavel Emelyanov2008-01-281-0/+2
| | | | | | | | | | | | | | | This includes the most simple cases for netfilter. The first part is tne queue modules for ipv4 and ipv6, on which the net/ipv4/ and net/ipv6/ paths are reused from the appropriate ipv4 and ipv6 code. The conntrack module is also patched, but this hunk is very small and simple. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Remove three declarations of unimplemented methods and correct a ↵Rami Rosen2008-01-281-4/+1
| | | | | | | | | | | | | | | | typo in include/net/ip.h These three declarations in include/net/ip.h are not implemented anywhere: ip_mc_dropsocket(), ip_mc_dropdevice() and ip_net_unreachable(). Also, correct a comment to be "Functions provided by ip_fragment.c" (instead of by ip_fragment.o) in consistency with the other comments in this header. Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Remove unused "mibalign" argument for snmp_mib_init().YOSHIFUJI Hideaki2008-01-281-1/+1
| | | | | | | | With fixes from Arnaldo Carvalho de Melo. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Use ctl paths to register net/ipv4/ tablePavel Emelyanov2008-01-281-2/+0
| | | | | | | | | This is the same as I did for the net/core/ table in the second patch in his series: use the paths and isolate the whole table in the .c file. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Add ip_local_outHerbert Xu2008-01-281-0/+2
| | | | | | | | | | | | | | | Most callers of the LOCAL_OUT chain will set the IP packet length and header checksum before doing so. They also share the same output function dst_output. This patch creates a new function called ip_local_out which does all of that and converts the appropriate users over to it. Apart from removing duplicate code, it will also help in merging the IPsec output path once the same thing is done for IPv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* IPoIB: improve IPv4/IPv6 to IB mcast mapping functionsRolf Manderscheid2008-01-251-4/+6
| | | | | | | | | | | | | | | | An IPoIB subnet on an IB fabric that spans multiple IB subnets can't use link-local scope in multicast GIDs. The existing routines that map IP/IPv6 multicast addresses into IB link-level addresses hard-code the scope to link-local, and they also leave the partition key field uninitialised. This patch adds a parameter (the link-level broadcast address) to the mapping routines, allowing them to initialise both the scope and the P_Key appropriately, and fixes up the call sites. The next step will be to add a way to configure the scope for an IPoIB interface. Signed-off-by: Rolf Manderscheid <rvm@obsidianresearch.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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