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| author | Isak Westin <isak.westin@loytec.com> | 2022-09-29 13:03:41 +0200 |
|---|---|---|
| committer | Ayush Garg <ayush.garg@samsung.com> | 2023-05-15 14:55:55 +0530 |
| commit | 37fae28beb5a9e91535bb92b148af836fde18f1c (patch) | |
| tree | 55ae1840c63f7bc8f18166c887a8380c49aa4699 | |
| parent | f8e5c7226efe94f34a51f786d1fd34fba3bcd3ad (diff) | |
| download | bluez-37fae28beb5a9e91535bb92b148af836fde18f1c.tar.gz bluez-37fae28beb5a9e91535bb92b148af836fde18f1c.tar.bz2 bluez-37fae28beb5a9e91535bb92b148af836fde18f1c.zip | |
mesh: Ignore Secure Network Beacon from subnet
If this node is a member of a primary subnet and receives a Secure Network
beacon on a secondary subnet with an IV Index greater than the last known
IV Index of the primary subnet, the Secure Network beacon shall be ignored.
See MshPRFv1.0.1 section 3.10.5.
Signed-off-by: Manika Shrivastava <manika.sh@samsung.com>
Signed-off-by: Ayush Garg <ayush.garg@samsung.com>
| -rw-r--r-- | mesh/net.c | 13 |
1 files changed, 12 insertions, 1 deletions
@@ -2706,7 +2706,7 @@ static void process_beacon(void *net_ptr, void *user_data) struct net_beacon_data *beacon_data = user_data; uint32_t ivi; bool ivu, kr, local_kr; - struct mesh_subnet *subnet; + struct mesh_subnet *subnet, *primary_subnet; ivi = beacon_data->ivi; @@ -2721,6 +2721,17 @@ static void process_beacon(void *net_ptr, void *user_data) if (!subnet) return; + /* + * @MshPRFv1.0.1 section 3.10.5: IV Update procedure + * If this node is a member of a primary subnet and receives a Secure + * Network beacon on a secondary subnet with an IV Index greater than + * the last known IV Index of the primary subnet, the Secure Network + * beacon shall be ignored. + */ + primary_subnet = get_primary_subnet(net); + if (primary_subnet && subnet != primary_subnet && ivi > net->iv_index) + return; + /* Get IVU and KR boolean bits from beacon */ ivu = beacon_data->ivu; kr = beacon_data->kr; |