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authorPatrick McHardy <kaber@trash.net>2010-05-11 14:40:55 +0200
committerPatrick McHardy <kaber@trash.net>2010-05-11 14:40:55 +0200
commitd1db275dd3f6e4182c4c4b4a1ac6287925d60569 (patch)
treeb8edf6661661ff84785495e2e053ce908417a9ff /include/linux/ipv6.h
parent6bd521433942d85e80f7a731a88cc91a327f38e0 (diff)
ipv6: ip6mr: support multiple tables
This patch adds support for multiple independant multicast routing instances, named "tables". Userspace multicast routing daemons can bind to a specific table instance by issuing a setsockopt call using a new option MRT6_TABLE. The table number is stored in the raw socket data and affects all following ip6mr setsockopt(), getsockopt() and ioctl() calls. By default, a single table (RT6_TABLE_DFLT) is created with a default routing rule pointing to it. Newly created pim6reg devices have the table number appended ("pim6regX"), with the exception of devices created in the default table, which are named just "pim6reg" for compatibility reasons. Packets are directed to a specific table instance using routing rules, similar to how regular routing rules work. Currently iif, oif and mark are supported as keys, source and destination addresses could be supported additionally. Example usage: - bind pimd/xorp/... to a specific table: uint32_t table = 123; setsockopt(fd, SOL_IPV6, MRT6_TABLE, &table, sizeof(table)); - create routing rules directing packets to the new table: # ip -6 mrule add iif eth0 lookup 123 # ip -6 mrule add oif eth0 lookup 123 Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include/linux/ipv6.h')
-rw-r--r--include/linux/ipv6.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 0e269038bb38..99e1ab7e3eec 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -383,6 +383,7 @@ struct raw6_sock {
__u32 checksum; /* perform checksum */
__u32 offset; /* checksum offset */
struct icmp6_filter filter;
+ __u32 ip6mr_table;
/* ipv6_pinfo has to be the last member of raw6_sock, see inet6_sk_generic */
struct ipv6_pinfo inet6;
};