tipc: add media get/dump to new netlink api

Add TIPC_NL_MEDIA_GET command to the new tipc netlink API.

This command supports dumping all information about all defined
media as well as getting all information about a specific media.

The information about a media includes name and link properties.

Netlink logical layout of media get response message:
-> media
    -> name
    -> link properties
        -> tolerance
        -> priority
        -> window

Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c
index 68bfd11f232d..742e51a0afbb 100644
--- a/net/tipc/netlink.c
+++ b/net/tipc/netlink.c
@@ -77,6 +77,7 @@ static const struct nla_policy tipc_nl_policy[TIPC_NLA_MAX + 1] = {
         [TIPC_NLA_SOCK]         = { .type = NLA_NESTED, },
         [TIPC_NLA_PUBL]         = { .type = NLA_NESTED, },
         [TIPC_NLA_LINK]         = { .type = NLA_NESTED, },
+        [TIPC_NLA_MEDIA]        = { .type = NLA_NESTED, },
 };
 
 /* Legacy ASCII API */
@@ -154,6 +155,12 @@ static const struct genl_ops tipc_genl_v2_ops[] = {
                 .cmd    = TIPC_NL_LINK_RESET_STATS,
                 .doit   = tipc_nl_link_reset_stats,
                 .policy = tipc_nl_policy,
+        },
+        {
+                .cmd    = TIPC_NL_MEDIA_GET,
+                .doit   = tipc_nl_media_get,
+                .dumpit = tipc_nl_media_dump,
+                .policy = tipc_nl_policy,
         }
 };