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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 /net/ipv6/Kconfig
parent6bd521433942d85e80f7a731a88cc91a327f38e0 (diff)
downloadlinux-d1db275dd3f6e4182c4c4b4a1ac6287925d60569.tar.bz2
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 'net/ipv6/Kconfig')
-rw-r--r--net/ipv6/Kconfig14
1 files changed, 14 insertions, 0 deletions
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index a578096152ab..36d7437ac054 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -229,6 +229,20 @@ config IPV6_MROUTE
Experimental support for IPv6 multicast forwarding.
If unsure, say N.
+config IPV6_MROUTE_MULTIPLE_TABLES
+ bool "IPv6: multicast policy routing"
+ depends on IPV6_MROUTE
+ select FIB_RULES
+ help
+ Normally, a multicast router runs a userspace daemon and decides
+ what to do with a multicast packet based on the source and
+ destination addresses. If you say Y here, the multicast router
+ will also be able to take interfaces and packet marks into
+ account and run multiple instances of userspace daemons
+ simultaneously, each one handling a single table.
+
+ If unsure, say N.
+
config IPV6_PIMSM_V2
bool "IPv6: PIM-SM version 2 support (EXPERIMENTAL)"
depends on IPV6_MROUTE