diff options
| author | Isak Westin <isak.westin@hotmail.com> | 2022-09-21 13:16:28 +0200 |
|---|---|---|
| committer | Brian Gix <brian.gix@intel.com> | 2022-09-22 14:02:38 -0700 |
| commit | a76ff5879b755b97043a30682c97788d162bb229 (patch) | |
| tree | 22118567f102e6e82e932f19faedd10376866924 /mesh | |
| parent | 75ba186a9ccd88b7fc871d5d1c6da3f7ac7c29b4 (diff) | |
| download | bluez-a76ff5879b755b97043a30682c97788d162bb229.tar.gz | |
mesh: Add interface output filter
According to the mesh profile (3.4.5.2), if TTL is set to 1 for an
outgoing message, that message shall be dropped.
Diffstat (limited to 'mesh')
| -rw-r--r-- | mesh/net.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/mesh/net.c b/mesh/net.c index e8e6d3a61..699469284 100644 --- a/mesh/net.c +++ b/mesh/net.c @@ -3067,6 +3067,13 @@ void mesh_net_send_seg(struct mesh_net *net, uint32_t net_key_id, uint8_t segO = (hdr >> SEGO_HDR_SHIFT) & SEG_MASK; uint8_t segN = (hdr >> SEGN_HDR_SHIFT) & SEG_MASK; + /* + * MshPRFv1.0.1 section 3.4.5.2, Interface output filter: + * If TTL is set to 1, message shall be dropped. + */ + if (ttl == 1) + return; + /* TODO: Only used for current POLLed segments to LPNs */ l_debug("SEQ: %6.6x", seq + segO); @@ -3135,6 +3142,13 @@ bool mesh_net_app_send(struct mesh_net *net, bool frnd_cred, uint16_t src, (dst >= net->src_addr && dst <= net->last_addr)) return true; + /* + * MshPRFv1.0.1 section 3.4.5.2, Interface output filter: + * If TTL is set to 1, message shall be dropped. + */ + if (ttl == 1) + return true; + /* Setup OTA Network send */ payload = mesh_sar_new(msg_len); memcpy(payload->buf, msg, msg_len); @@ -3206,6 +3220,13 @@ void mesh_net_ack_send(struct mesh_net *net, uint32_t net_key_id, uint8_t pkt_len; uint8_t pkt[30]; + /* + * MshPRFv1.0.1 section 3.4.5.2, Interface output filter: + * If TTL is set to 1, message shall be dropped. + */ + if (ttl == 1) + return; + hdr = NET_OP_SEG_ACKNOWLEDGE << OPCODE_HDR_SHIFT; hdr |= rly << RELAY_HDR_SHIFT; hdr |= (seqZero & SEQ_ZERO_MASK) << SEQ_ZERO_HDR_SHIFT; @@ -3264,6 +3285,13 @@ void mesh_net_transport_send(struct mesh_net *net, uint32_t net_key_id, if (*msg & 0xc0 || (9 + msg_len + 8 > 29)) return; + /* + * MshPRFv1.0.1 section 3.4.5.2, Interface output filter: + * If TTL is set to 1, message shall be dropped. + */ + if (ttl == 1) + return; + /* Enqueue for Friend if forwardable and from us */ if (!net_key_id && src >= net->src_addr && src <= net->last_addr) { uint32_t hdr = msg[0] << OPCODE_HDR_SHIFT; |