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authorMartin Mares <mj@ucw.cz>2000-04-17 12:19:15 +0200
committerMartin Mares <mj@ucw.cz>2000-04-17 12:19:15 +0200
commit1ed2fe960929081065e75a7fb4322f28a76c508b (patch)
tree5298085a496c85304b3cb18ac4060fe3011fddca /proto/bgp
parentc6add07fa6ca8366fbdcfcd9bc2872c129378366 (diff)
downloadbird-1ed2fe960929081065e75a7fb4322f28a76c508b.tar
bird-1ed2fe960929081065e75a7fb4322f28a76c508b.zip
Send and receive communities.
Diffstat (limited to 'proto/bgp')
-rw-r--r--proto/bgp/attrs.c24
-rw-r--r--proto/bgp/bgp.h3
-rw-r--r--proto/bgp/packets.c1
3 files changed, 20 insertions, 8 deletions
diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c
index bc3de3b..d99c7f8 100644
--- a/proto/bgp/attrs.c
+++ b/proto/bgp/attrs.c
@@ -54,7 +54,7 @@ bgp_check_path(struct bgp_proto *p, byte *a, int len)
{
DBG("Path segment %02x %02x\n", a[0], a[1]);
if (len < 2 ||
- a[0] != BGP_PATH_AS_SET && a[0] != BGP_PATH_AS_SEQUENCE ||
+ a[0] != AS_PATH_SET && a[0] != AS_PATH_SEQUENCE ||
2*a[1] + 2 > len)
return 11;
len -= 2*a[1] + 2;
@@ -101,9 +101,9 @@ static struct attr_desc bgp_attr_table[] = {
NULL, NULL },
{ "aggregator", 6, BAF_OPTIONAL, EAF_TYPE_OPAQUE, /* BA_AGGREGATOR */
NULL, NULL },
+ { "community", -1, BAF_OPTIONAL | BAF_TRANSITIVE, EAF_TYPE_INT_SET, /* BA_COMMUNITY */
+ NULL, NULL },
#if 0
- /* FIXME: Handle community lists and remember to convert their endianity and normalize them */
- { 0, 0 }, /* BA_COMMUNITY */
{ 0, 0 }, /* BA_ORIGINATOR_ID */
{ 0, 0 }, /* BA_CLUSTER_LIST */
#endif
@@ -177,9 +177,16 @@ bgp_encode_attrs(byte *w, struct bgp_bucket *buck)
memcpy(w, &ip, len);
break;
}
+ case EAF_TYPE_INT_SET:
+ {
+ u32 *z = (u32 *)a->u.ptr->data;
+ int i;
+ for(i=0; i<len; i+=4)
+ put_u32(w+i, *z++);
+ break;
+ }
case EAF_TYPE_OPAQUE:
case EAF_TYPE_AS_PATH:
- case EAF_TYPE_INT_SET:
memcpy(w, a->u.ptr->data, len);
break;
default:
@@ -318,7 +325,7 @@ bgp_get_bucket(struct bgp_proto *p, ea_list *old, ea_list *tmp)
a = &new->attrs[i];
#ifdef LOCAL_DEBUG
{
- byte buf[256];
+ byte buf[EA_FORMAT_BUF_SIZE];
ea_format(a, buf);
DBG("\t%s\n", buf);
}
@@ -710,6 +717,13 @@ bgp_decode_attrs(struct bgp_conn *conn, byte *attr, unsigned int len, struct lin
case EAF_TYPE_IP_ADDRESS:
ipa_ntoh(*(ip_addr *)ad->data);
break;
+ case EAF_TYPE_INT_SET:
+ {
+ u32 *z = (u32 *) ad->data;
+ for(i=0; i<ad->length/4; i++)
+ z[i] = ntohl(z[i]);
+ break;
+ }
}
}
diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h
index 0f84c3b..722e12e 100644
--- a/proto/bgp/bgp.h
+++ b/proto/bgp/bgp.h
@@ -139,9 +139,6 @@ int bgp_rx(struct birdsock *sk, int size);
#define BA_MP_UNREACH_NLRI 0x0f
#define BA_EXTENDED_COMM 0x10 /* draft-ramachandra-bgp-ext-communities */
-#define BGP_PATH_AS_SET 1 /* Types of path segments */
-#define BGP_PATH_AS_SEQUENCE 2
-
/* BGP states */
#define BS_IDLE 0
diff --git a/proto/bgp/packets.c b/proto/bgp/packets.c
index 2f3f8ad..f1555ca 100644
--- a/proto/bgp/packets.c
+++ b/proto/bgp/packets.c
@@ -81,6 +81,7 @@ bgp_create_update(struct bgp_conn *conn, byte *buf)
int r_size = 0;
DBG("BGP: Sending update\n");
+ /* FIXME: Better timing of updates */
w = buf+2;
if ((buck = bgp->withdraw_bucket) && !EMPTY_LIST(buck->prefixes))
{