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Adds some options and documentation related to recursive next hops.

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This commit is contained in:
Ondrej Zajicek
2010-07-13 12:48:23 +02:00
parent f038f0a638
commit 087cecd0e2
5 changed files with 48 additions and 15 deletions
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15
proto/bgp/bgp.c
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@@ -951,6 +951,8 @@ bgp_store_error(struct bgp_proto *p, struct bgp_conn *c, u8 class, u32 code)
void
bgp_check(struct bgp_config *c)
{
int internal = (c->local_as == c->remote_as);
if (!c->local_as)
cf_error("Local AS number must be set");
@@ -960,15 +962,22 @@ bgp_check(struct bgp_config *c)
if (!(c->capabilities && c->enable_as4) && (c->remote_as > 0xFFFF))
cf_error("Neighbor AS number out of range (AS4 not available)");
if ((c->local_as != c->remote_as) && (c->rr_client))
if (!internal && c->rr_client)
cf_error("Only internal neighbor can be RR client");
if ((c->local_as == c->remote_as) && (c->rs_client))
if (internal && c->rs_client)
cf_error("Only external neighbor can be RS client");
if (c->multihop && (c->gw_mode == GW_DIRECT))
cf_error("Multihop BGP cannot use direct gateway mode");
/* Different default based on rs_client */
if (c->missing_lladdr == 0)
if (!c->missing_lladdr)
c->missing_lladdr = c->rs_client ? MLL_DROP : MLL_SELF;
/* Different default for gw_mode */
if (!c->gw_mode)
c->gw_mode = (c->multihop || internal) ? GW_RECURSIVE : GW_DIRECT;
}
static char *bgp_state_names[] = { "Idle", "Connect", "Active", "OpenSent", "OpenConfirm", "Established", "Close" };