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Remove bgp_as4_support variable.

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This commit is contained in:
Ondrej Zajicek
2009-12-14 23:31:25 +01:00
parent 13a7395704
commit 43c1ceccb9
5 changed files with 29 additions and 74 deletions
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34
proto/bgp/attrs.c
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@@ -196,16 +196,8 @@ bgp_format_aggregator(eattr *a, byte *buf, int buflen UNUSED)
byte *data = ad->data;
u32 as;
if (bgp_as4_support)
{
as = get_u32(data);
data += 4;
}
else
{
as = get_u16(data);
data += 2;
}
as = get_u32(data);
data += 4;
bsprintf(buf, "%d.%d.%d.%d AS%d", data[0], data[1], data[2], data[3], as);
}
@@ -279,9 +271,8 @@ static struct attr_desc bgp_attr_table[] = {
NULL, NULL }
};
/* BA_AS4_PATH is type EAF_TYPE_OPAQUE and not type EAF_TYPE_AS_PATH because
* EAF_TYPE_AS_PATH is supposed to have different format (2 or 4 B for each ASN)
* depending on bgp_as4_support variable.
/* BA_AS4_PATH is type EAF_TYPE_OPAQUE and not type EAF_TYPE_AS_PATH.
* It does not matter as this attribute does not appear on routes in the routing table.
*/
#define ATTR_KNOWN(code) ((code) < ARRAY_SIZE(bgp_attr_table) && bgp_attr_table[code].name)
@@ -449,7 +440,7 @@ bgp_encode_attrs(struct bgp_proto *p, byte *w, ea_list *attrs, int remains)
* we have to convert our 4B AS_PATH to 2B AS_PATH and send our AS_PATH
* as optional AS4_PATH attribute.
*/
if ((code == BA_AS_PATH) && bgp_as4_support && (! p->as4_session))
if ((code == BA_AS_PATH) && (! p->as4_session))
{
len = a->u.ptr->length;
@@ -491,7 +482,7 @@ bgp_encode_attrs(struct bgp_proto *p, byte *w, ea_list *attrs, int remains)
}
/* The same issue with AGGREGATOR attribute */
if ((code == BA_AGGREGATOR) && bgp_as4_support && (! p->as4_session))
if ((code == BA_AGGREGATOR) && (! p->as4_session))
{
int new_used;
@@ -864,14 +855,10 @@ bgp_create_attrs(struct bgp_proto *p, rte *e, ea_list **attrs, struct linpool *p
bgp_set_attr_wa(ea->attrs+1, pool, BA_AS_PATH, 0);
else
{
z = bgp_set_attr_wa(ea->attrs+1, pool, BA_AS_PATH, bgp_as4_support ? 6 : 4);
z = bgp_set_attr_wa(ea->attrs+1, pool, BA_AS_PATH, 6);
z[0] = AS_PATH_SEQUENCE;
z[1] = 1; /* 1 AS */
if (bgp_as4_support)
put_u32(z+2, p->local_as);
else
put_u16(z+2, p->local_as);
put_u32(z+2, p->local_as);
}
z = bgp_set_attr_wa(ea->attrs+2, pool, BA_NEXT_HOP, NEXT_HOP_LENGTH);
@@ -1416,11 +1403,10 @@ bgp_decode_attrs(struct bgp_conn *conn, byte *attr, unsigned int len, struct lin
/* When receiving attributes from non-AS4-aware BGP speaker,
* we have to reconstruct 4B AS_PATH and AGGREGATOR attributes
*/
if (bgp_as4_support && (! bgp->as4_session))
if (! bgp->as4_session)
bgp_reconstruct_4b_atts(bgp, a, pool);
if (bgp_as4_support)
bgp_remove_as4_attrs(bgp, a);
bgp_remove_as4_attrs(bgp, a);
/* If the AS path attribute contains our AS, reject the routes */
if (bgp_as_path_loopy(bgp, a))