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zebra: When passing lookup information back pass the fully resolved

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In the reachability code we auto pass back the fully resolved
nexthops.  Modify the ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB code
to do the exact same thing so that the zclient_lookup_nexthop
code does not need to recursively look for the data that
zebra already has.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2021-07-07 16:52:24 -04:00
parent 5f179a1a61
commit b59839af7d
3 changed files with 10 additions and 10 deletions
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14
zebra/zapi_msg.c
View File

@ -682,6 +682,8 @@ static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client,
stream_put_in_addr(s, &addr);
if (re) {
struct nexthop_group *nhg;
stream_putc(s, re->distance);
stream_putl(s, re->metric);
num = 0;
@ -689,15 +691,11 @@ static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client,
nump = stream_get_endp(s);
/* reserve room for nexthop_num */
stream_putc(s, 0);
/*
* Only non-recursive routes are elegible to resolve the
* nexthop we are looking up. Therefore, we will just iterate
* over the top chain of nexthops.
*/
for (nexthop = re->nhe->nhg.nexthop; nexthop;
nexthop = nexthop->next)
if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE))
nhg = rib_get_fib_nhg(re);
for (ALL_NEXTHOPS_PTR(nhg, nexthop)) {
if (rnh_nexthop_valid(re, nexthop))
num += zserv_encode_nexthop(s, nexthop);
}
/* store nexthop_num */
stream_putc_at(s, nump, num);

3
zebra/zebra_rnh.c
View File

@ -598,8 +598,7 @@ static const int RNH_INVALID_NH_FLAGS = (NEXTHOP_FLAG_RECURSIVE |
NEXTHOP_FLAG_DUPLICATE |
NEXTHOP_FLAG_RNH_FILTERED);
static bool rnh_nexthop_valid(const struct route_entry *re,
const struct nexthop *nh)
bool rnh_nexthop_valid(const struct route_entry *re, const struct nexthop *nh)
{
return (CHECK_FLAG(re->status, ROUTE_ENTRY_INSTALLED)
&& CHECK_FLAG(nh->flags, NEXTHOP_FLAG_ACTIVE)

3
zebra/zebra_rnh.h
View File

@ -64,6 +64,9 @@ extern void zebra_print_rnh_table(vrf_id_t vrfid, afi_t afi, struct vty *vty,
extern int rnh_resolve_via_default(struct zebra_vrf *zvrf, int family);
extern bool rnh_nexthop_valid(const struct route_entry *re,
const struct nexthop *nh);
/* UI control to avoid notifications if backup nexthop status changes */
void rnh_set_hide_backups(bool hide_p);
bool rnh_get_hide_backups(void);