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pimd:Skip RPF check for SA message received from the MSDP mesh group peers

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Signed-off-by: Utkarsh Srivastava <usrivastava@nvidia.com>
This commit is contained in:
usrivastava-nvidia 2025-03-07 06:05:52 +00:00
parent 5934b6f402
commit eb4c1610cb
1 changed files with 16 additions and 1 deletions
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17
pimd/pim_msdp_packet.c
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@ -618,6 +618,21 @@ static void pim_msdp_pkt_sa_rx(struct pim_msdp_peer *mp, int len)
int entry_cnt;
int i;
struct in_addr rp; /* Last RP address associated with this SA */
struct pim_msdp_mg *mg;
struct pim_instance *pim = mp->pim;
bool is_mesh_group = false;
if (mp->flags & PIM_MSDP_PEERF_IN_GROUP) {
/* Check if source is also in the same mesh group */
SLIST_FOREACH (mg, &pim->msdp.mglist, mg_entry) {
if (strcmp(mg->mesh_group_name, mp->mesh_group_name) == 0) {
if (mg->src_ip.s_addr == mp->local.s_addr) {
is_mesh_group = true;
break;
}
}
}
}
mp->sa_rx_cnt++;
@ -645,7 +660,7 @@ static void pim_msdp_pkt_sa_rx(struct pim_msdp_peer *mp, int len)
pim_msdp_peer_pkt_rxed(mp);
if (!pim_msdp_peer_rpf_check(mp, rp)) {
if (!is_mesh_group && !pim_msdp_peer_rpf_check(mp, rp)) {
/* if peer-RPF check fails don't process the packet any further
*/
if (PIM_DEBUG_MSDP_PACKETS) {