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pimd: Do not allow 224.0.0.0/24 range in igmp join

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224.0.0.0/24 cannot be used by igmp since this is reserved
for routing protocols and other low-level topology discovery or
maintenance protocols.

Fixes: #10614

Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
This commit is contained in:
Mobashshera Rasool 2022-02-17 22:03:07 -08:00
parent 52ddb8d545
commit fcfd479d99
1 changed files with 9 additions and 0 deletions
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9
pimd/pim_nb_config.c
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@ -31,6 +31,7 @@
#include "pim_ssm.h"
#include "pim_ssmpingd.h"
#include "pim_vxlan.h"
#include "pim_util.h"
#include "log.h"
#include "lib_errors.h"
@ -2833,6 +2834,14 @@ int lib_interface_gmp_address_family_static_group_create(
ifp_name);
return NB_ERR_VALIDATION;
}
yang_dnode_get_ip(&group_addr, args->dnode, "./group-addr");
if (pim_is_group_224_0_0_0_24(group_addr.ip._v4_addr)) {
snprintf(
args->errmsg, args->errmsg_len,
"Groups within 224.0.0.0/24 are reserved and cannot be joined");
return NB_ERR_VALIDATION;
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT: