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lib, zebra: carry source prefix in route_notify

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When a daemon wants to know about its routes, make it possible to have
that work for dst-src routes.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This commit is contained in:
David Lamparter 2025-01-27 20:26:32 +01:00
parent 3671ce36fd
commit 2af780650f
3 changed files with 30 additions and 3 deletions
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12
lib/zclient.c
View file

@ -2015,6 +2015,15 @@ bool zapi_route_notify_decode(struct stream *s, struct prefix *p,
uint32_t *tableid,
enum zapi_route_notify_owner *note,
afi_t *afi, safi_t *safi)
{
struct prefix dummy;
return zapi_route_notify_decode_srcdest(s, p, &dummy, tableid, note, afi, safi);
}
bool zapi_route_notify_decode_srcdest(struct stream *s, struct prefix *p, struct prefix *src_p,
uint32_t *tableid, enum zapi_route_notify_owner *note,
afi_t *afi, safi_t *safi)
{
uint32_t t;
afi_t afi_val;
@ -2025,6 +2034,9 @@ bool zapi_route_notify_decode(struct stream *s, struct prefix *p,
STREAM_GETC(s, p->family);
STREAM_GETC(s, p->prefixlen);
STREAM_GET(&p->u.prefix, s, prefix_blen(p));
src_p->family = p->family;
STREAM_GETC(s, src_p->prefixlen);
STREAM_GET(&src_p->u.prefix, s, prefix_blen(src_p));
STREAM_GETL(s, t);
STREAM_GETC(s, afi_val);
STREAM_GETC(s, safi_val);

3
lib/zclient.h
View file

@ -1144,6 +1144,9 @@ bool zapi_route_notify_decode(struct stream *s, struct prefix *p,
uint32_t *tableid,
enum zapi_route_notify_owner *note,
afi_t *afi, safi_t *safi);
bool zapi_route_notify_decode_srcdest(struct stream *s, struct prefix *p, struct prefix *src_p,
uint32_t *tableid, enum zapi_route_notify_owner *note,
afi_t *afi, safi_t *safi);
bool zapi_rule_notify_decode(struct stream *s, uint32_t *seqno,
uint32_t *priority, uint32_t *unique, char *ifname,
enum zapi_rule_notify_owner *note);

18
zebra/zapi_msg.c
View file

@ -740,6 +740,10 @@ static int route_notify_internal(const struct route_node *rn, int type,
struct zserv *client;
struct stream *s;
uint8_t blen;
const struct prefix *p, *src_p;
struct prefix src_dummy = {};
srcdest_rnode_prefixes(rn, &p, &src_p);
client = zserv_find_client(type, instance);
if (!client || !client->notify_owner) {
@ -771,9 +775,17 @@ static int route_notify_internal(const struct route_node *rn, int type,
stream_putc(s, rn->p.family);
blen = prefix_blen(&rn->p);
stream_putc(s, rn->p.prefixlen);
stream_put(s, &rn->p.u.prefix, blen);
blen = prefix_blen(p);
stream_putc(s, p->prefixlen);
stream_put(s, &p->u.prefix, blen);
if (!src_p) {
src_dummy.family = p->family;
src_p = &src_dummy;
}
blen = prefix_blen(src_p);
stream_putc(s, src_p->prefixlen);
stream_put(s, &src_p->u.prefix, blen);
stream_putl(s, table_id);