From ff0d3e78a67a8edd09688f073361de9ed8abf9dc Mon Sep 17 00:00:00 2001 From: Parthasarathy Bhuvaragan Date: Tue, 26 Jul 2016 08:47:21 +0200 Subject: tipc: add a function to get the bearer name Introduce a new function to get the bearer name from its id. This is used in subsequent commit. Reviewed-by: Jon Maloy Signed-off-by: Parthasarathy Bhuvaragan Signed-off-by: David S. Miller --- net/tipc/bearer.c | 21 +++++++++++++++++++++ net/tipc/bearer.h | 1 + 2 files changed, 22 insertions(+) (limited to 'net') diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 65b0998a9bab..65b1bbf133bd 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -171,6 +171,27 @@ struct tipc_bearer *tipc_bearer_find(struct net *net, const char *name) return NULL; } +/* tipc_bearer_get_name - get the bearer name from its id. + * @net: network namespace + * @name: a pointer to the buffer where the name will be stored. + * @bearer_id: the id to get the name from. + */ +int tipc_bearer_get_name(struct net *net, char *name, u32 bearer_id) +{ + struct tipc_net *tn = tipc_net(net); + struct tipc_bearer *b; + + if (bearer_id >= MAX_BEARERS) + return -EINVAL; + + b = rtnl_dereference(tn->bearer_list[bearer_id]); + if (!b) + return -EINVAL; + + strcpy(name, b->name); + return 0; +} + void tipc_bearer_add_dest(struct net *net, u32 bearer_id, u32 dest) { struct tipc_net *tn = net_generic(net, tipc_net_id); diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h index f1e6db5e6345..43757f1f9cb3 100644 --- a/net/tipc/bearer.h +++ b/net/tipc/bearer.h @@ -197,6 +197,7 @@ int tipc_l2_send_msg(struct net *net, struct sk_buff *buf, void tipc_bearer_add_dest(struct net *net, u32 bearer_id, u32 dest); void tipc_bearer_remove_dest(struct net *net, u32 bearer_id, u32 dest); struct tipc_bearer *tipc_bearer_find(struct net *net, const char *name); +int tipc_bearer_get_name(struct net *net, char *name, u32 bearer_id); struct tipc_media *tipc_media_find(const char *name); void tipc_bearer_reset_all(struct net *net); int tipc_bearer_setup(void); -- cgit v1.2.3-59-g8ed1b