diff options
| author | Isak Westin <isak.westin@loytec.com> | 2022-09-29 13:03:41 +0200 |
|---|---|---|
| committer | Brian Gix <brian.gix@intel.com> | 2022-10-03 14:19:19 -0700 |
| commit | 926d16db8ae4bb5c40266be5bd6b10023d932c0d (patch) | |
| tree | e165fc5ef7a8f0bdb563bad8dd0673d93bb74d75 | |
| parent | 25a31f5a930e0bd724cc55b0595b082a732ccd79 (diff) | |
| download | bluez-926d16db8ae4bb5c40266be5bd6b10023d932c0d.tar.gz | |
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.
| -rw-r--r-- | mesh/net.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/mesh/net.c b/mesh/net.c index 7fec98531..dc3d1fd80 100644 --- a/mesh/net.c +++ b/mesh/net.c @@ -2708,7 +2708,7 @@ 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; @@ -2723,6 +2723,17 @@ 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; |