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tipc: add function for checking broadcast support in bearer

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As a preparation for the 'replicast' functionality we are going to
introduce in the next commits, we need the broadcast base structure to
store whether bearer broadcast is available at all from the currently
used bearer or bearers.

We do this by adding a new function tipc_bearer_bcast_support() to
the bearer layer, and letting the bearer selection function in
bcast.c use this to give a new boolean field, 'bcast_support' the
appropriate value.

Reviewed-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jon Paul Maloy
2017-01-18 13:50:50 -05:00
committed by David S. Miller
parent a5e8c07059
commit 9999974a83
4 changed files with 34 additions and 9 deletions
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8
net/tipc/udp_media.c
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@@ -113,7 +113,7 @@ static void tipc_udp_media_addr_set(struct tipc_media_addr *addr,
memcpy(addr->value, ua, sizeof(struct udp_media_addr));
if (tipc_udp_is_mcast_addr(ua))
addr->broadcast = 1;
addr->broadcast = TIPC_BROADCAST_SUPPORT;
}
/* tipc_udp_addr2str - convert ip/udp address to string */
@@ -229,7 +229,7 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
goto out;
}
if (!addr->broadcast || list_empty(&ub->rcast.list))
if (addr->broadcast != TIPC_REPLICAST_SUPPORT)
return tipc_udp_xmit(net, skb, ub, src, dst);
/* Replicast, send an skb to each configured IP address */
@@ -296,7 +296,7 @@ static int tipc_udp_rcast_add(struct tipc_bearer *b,
else if (ntohs(addr->proto) == ETH_P_IPV6)
pr_info("New replicast peer: %pI6\n", &rcast->addr.ipv6);
#endif
b->bcast_addr.broadcast = TIPC_REPLICAST_SUPPORT;
list_add_rcu(&rcast->list, &ub->rcast.list);
return 0;
}
@@ -681,7 +681,7 @@ static int tipc_udp_enable(struct net *net, struct tipc_bearer *b,
goto err;
b->bcast_addr.media_id = TIPC_MEDIA_TYPE_UDP;
b->bcast_addr.broadcast = 1;
b->bcast_addr.broadcast = TIPC_BROADCAST_SUPPORT;
rcu_assign_pointer(b->media_ptr, ub);
rcu_assign_pointer(ub->bearer, b);
tipc_udp_media_addr_set(&b->addr, &local);