From: Brian Gix <brian.gix@xxxxxxxxx>
This includes the Sample Data from the Mesh Profile specification v1.1,
and validates that the beacon crypto functions work as expected.
---
unit/test-mesh-crypto.c | 182 ++++++++++++++++++++++++++++++++--------
1 file changed, 147 insertions(+), 35 deletions(-)
diff --git a/unit/test-mesh-crypto.c b/unit/test-mesh-crypto.c
index f9b7d81da..39632d973 100644
--- a/unit/test-mesh-crypto.c
+++ b/unit/test-mesh-crypto.c
@@ -633,6 +633,36 @@ static const struct mesh_crypto_test s8_4_3 = {
.beacon = "01003ecaff672f673370123456788ea261582f364f6f",
};
+static const struct mesh_crypto_test s8_4_6_1 = {
+ .name = "8.4.6.1 Private Beacon IVU",
+
+ .net_key = "f7a2a44f8e8a8029064f173ddc1e2b00",
+ .iv_index = 0x1010abcd,
+
+ .enc_key = "6be76842460b2d3a5850d4698409f1bb",
+ .rand = "435f18f85cf78a3121f58478a5",
+
+ .beacon_type = 0x02,
+ .beacon_flags = 0x02,
+ .beacon_cmac = "f3174f022a514741",
+ .beacon = "02435f18f85cf78a3121f58478a561e488e7cbf3174f022a514741",
+};
+
+static const struct mesh_crypto_test s8_4_6_2 = {
+ .name = "8.4.6.2 Private Beacon IVU Complete",
+
+ .net_key = "3bbb6f1fbd53e157417f308ce7aec58f",
+ .iv_index = 0x00000000,
+
+ .enc_key = "ca478cdac626b7a8522d7272dd124f26",
+ .rand = "1b998f82927535ea6f3076f422",
+
+ .beacon_type = 0x02,
+ .beacon_flags = 0x00,
+ .beacon_cmac = "2f0ffb94cf97f881",
+ .beacon = "021b998f82927535ea6f3076f422ce827408ab2f0ffb94cf97f881",
+};
+
static const struct mesh_crypto_test s8_6_2 = {
.name = "8.6.2 Service Data using Node Identity",
@@ -683,6 +713,17 @@ static void verify_data(const char *label, unsigned int indent,
l_free(str);
}
+static void verify_bool(const char *label, unsigned int indent,
+ bool sample, bool data)
+{
+ l_info("%-20s =%*c%s", label, 1 + (indent * 2), ' ',
+ sample ? "true" : "false");
+ l_info("%-20s %*c%s => %s", "", 1 + (indent * 2), ' ',
+ data ? "true" : "false",
+ EVALNUM(sample, data));
+ EXITNUM(sample, data);
+}
+
static void verify_bool_not_both(const char *label, unsigned int indent,
bool sample, bool data)
{
@@ -796,10 +837,11 @@ static void check_encrypt_segment(const struct mesh_crypto_test *keys,
uint32_t hdr;
uint64_t net_mic64, net_mic32;
size_t net_msg_len;
+ bool status;
uint8_t key_aid = keys->key_aid | (keys->akf ? KEY_ID_AKF : 0x00);
if (keys->ctl) {
- mesh_crypto_packet_build(keys->ctl, keys->net_ttl,
+ status = mesh_crypto_packet_build(keys->ctl, keys->net_ttl,
keys->net_seq[0],
keys->net_src, keys->net_dst,
keys->opcode,
@@ -809,7 +851,7 @@ static void check_encrypt_segment(const struct mesh_crypto_test *keys,
enc_msg, len,
packet, &packet_len);
} else {
- mesh_crypto_packet_build(keys->ctl, keys->net_ttl,
+ status = mesh_crypto_packet_build(keys->ctl, keys->net_ttl,
keys->net_seq[0],
keys->net_src, keys->net_dst,
keys->opcode,
@@ -822,6 +864,10 @@ static void check_encrypt_segment(const struct mesh_crypto_test *keys,
l_info(COLOR_YELLOW "Segment-%d" COLOR_OFF, seg);
+ verify_bool("Crypto packet build", 0, true, status);
+ if (!status)
+ return;
+
hdr = l_get_be32(packet + 9);
verify_uint8("SEG", 9, keys->segmented << (SEG_HDR_SHIFT % 8),
packet[9] & (1 << (SEG_HDR_SHIFT % 8)));
@@ -870,15 +916,20 @@ static void check_encrypt_segment(const struct mesh_crypto_test *keys,
net_msg_len = len + 2;
show_data("TransportPayload", 7, packet + 7, net_msg_len);
- mesh_crypto_packet_encrypt(packet, packet_len,
+ status = mesh_crypto_packet_encrypt(packet, packet_len,
enc_key,
keys->iv_index, false,
keys->ctl, keys->net_ttl,
keys->net_seq[0],
keys->net_src);
+ verify_bool("Crypto packet encrypt", 0, true, status);
+ if (!status)
+ return;
+
mesh_crypto_privacy_counter(keys->iv_index, packet + 7, priv_rand);
+
l_info("");
show_uint32("IVindex", 0, keys->iv_index);
verify_data("NetworkNonce", 0, keys->net_nonce[0], net_nonce, 13);
@@ -907,10 +958,15 @@ static void check_encrypt_segment(const struct mesh_crypto_test *keys,
}
show_data("PreObsPayload", 1, packet + 1, 6 + net_msg_len);
- mesh_crypto_network_obfuscate(packet, priv_key,
+ status = mesh_crypto_network_obfuscate(packet, priv_key,
keys->iv_index,
keys->ctl, keys->net_ttl,
keys->net_seq[0], keys->net_src);
+
+ verify_bool("Crypto network obfuscate", 0, true, status);
+ if (!status)
+ return;
+
show_data("PostObsPayload", 1, packet + 1, 6 + net_msg_len);
packet[0] = (keys->iv_index & 0x01) << 7 | nid;
@@ -926,7 +982,7 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
uint8_t *dev_key;
uint8_t *app_key;
uint8_t *net_key;
- uint8_t nid;
+ uint8_t nid = 0;
uint8_t enc_key[16];
uint8_t priv_key[16];
uint8_t net_nonce[13];
@@ -949,6 +1005,7 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
uint8_t packet_len;
uint16_t i, seg_max, seg_len = 0;
uint32_t seqZero, hdr;
+ bool status;
l_info(COLOR_BLUE "[Encrypt %s]" COLOR_OFF, keys->name);
verify_bool_not_both("CTL && Segmented", 0, keys->ctl, keys->segmented);
@@ -960,8 +1017,7 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
show_data("NetworkKey", 0, net_key, 16);
- if (keys->akf) {
- mesh_crypto_k4(app_key, &key_aid);
+ if (keys->akf && mesh_crypto_k4(app_key, &key_aid)) {
key_aid |= KEY_ID_AKF;
} else {
key_aid = 0;
@@ -1034,7 +1090,7 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
seg_max = SEG_MAX(keys->segmented, app_msg_len + 8);
enc_msg = l_malloc(app_msg_len + 8);
- mesh_crypto_payload_encrypt(aad, app_msg,
+ status = mesh_crypto_payload_encrypt(aad, app_msg,
enc_msg, app_msg_len,
keys->net_src, keys->net_dst, key_aid,
keys->app_seq, keys->iv_index,
@@ -1044,7 +1100,7 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
seg_max = SEG_MAX(keys->segmented, app_msg_len + 4);
enc_msg = l_malloc(app_msg_len + 4);
- mesh_crypto_payload_encrypt(aad, app_msg,
+ status = mesh_crypto_payload_encrypt(aad, app_msg,
enc_msg, app_msg_len,
keys->net_src, keys->net_dst, key_aid,
keys->app_seq, keys->iv_index,
@@ -1052,6 +1108,10 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
keys->akf ? app_key : dev_key);
}
+ verify_bool("Crypto payload encrypt", 0, true, status);
+ if (!status)
+ return;
+
if (keys->dev_key && !keys->akf)
show_data("DeviceKey", 0, dev_key, 16);
@@ -1097,7 +1157,8 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
}
if (keys->ctl) {
- mesh_crypto_packet_build(keys->ctl, keys->net_ttl,
+ status = mesh_crypto_packet_build(keys->ctl,
+ keys->net_ttl,
keys->net_seq[i],
keys->net_src, keys->net_dst,
keys->opcode,
@@ -1107,7 +1168,8 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
enc_msg + 1, seg_len,
packet, &packet_len);
} else {
- mesh_crypto_packet_build(keys->ctl, keys->net_ttl,
+ status = mesh_crypto_packet_build(keys->ctl,
+ keys->net_ttl,
keys->net_seq[i],
keys->net_src, keys->net_dst,
keys->opcode,
@@ -1120,6 +1182,10 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
if (seg_max) l_info(COLOR_YELLOW "Segment-%d" COLOR_OFF, i);
+ verify_bool("Crypto packet build", 0, true, status);
+ if (!status)
+ return;
+
hdr = l_get_be32(packet + 9);
verify_uint8("SEG", 9, keys->segmented << (SEG_HDR_SHIFT % 8),
packet[9] & (1 << (SEG_HDR_SHIFT % 8)));
@@ -1193,12 +1259,16 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
net_msg_len = seg_len + 2;
show_data("TransportPayload", 7, packet + 7, net_msg_len);
- mesh_crypto_packet_encrypt(packet, packet_len, enc_key,
+ status = mesh_crypto_packet_encrypt(packet, packet_len, enc_key,
keys->iv_index, false,
keys->ctl, keys->net_ttl,
keys->net_seq[i],
keys->net_src);
+ verify_bool("Crypto packet encrypt", 0, true, status);
+ if (!status)
+ return;
+
mesh_crypto_privacy_counter(keys->iv_index, packet + 7,
priv_rand);
@@ -1232,11 +1302,15 @@ static void check_encrypt(const struct mesh_crypto_test *keys)
}
show_data("PreObsPayload", 1, packet + 1, 6 + net_msg_len);
- mesh_crypto_network_obfuscate(packet, priv_key,
+ status = mesh_crypto_network_obfuscate(packet, priv_key,
keys->iv_index,
keys->ctl, keys->net_ttl,
keys->net_seq[i], keys->net_src);
+ verify_bool("Crypto network obfuscate", 0, true, status);
+ if (!status)
+ return;
+
show_data("PostObsPayload", 1, packet + 1, 6 + net_msg_len);
packet[0] = (keys->iv_index & 0x01) << 7 | nid;
@@ -1265,19 +1339,20 @@ static void check_decrypt_segment(const struct mesh_crypto_test *keys,
uint8_t net_clr[29];
uint64_t net_mic64, calc_net_mic64;
uint32_t hdr, net_mic32, calc_net_mic32;
- bool ctl, segmented, relay, szmic, key_akf;
+ bool ctl, segmented, relay, szmic, key_akf, status;
uint8_t ttl, opcode, key_aid, segO, segN;
uint32_t seq;
uint16_t src, dst, seqZero;
memcpy(net_clr, pkt, pkt_len);
show_data("NetworkMessage", 0, pkt, pkt_len);
- mesh_crypto_packet_decode(pkt, pkt_len,
+ status = mesh_crypto_packet_decode(pkt, pkt_len,
false, net_clr, keys->iv_index,
enc_key, priv_key);
show_data("Decoded", 0, net_clr, pkt_len);
- mesh_crypto_packet_parse(net_clr, pkt_len,
+ if (status)
+ status = mesh_crypto_packet_parse(net_clr, pkt_len,
&ctl, &ttl, &seq,
&src, &dst,
NULL, &opcode,
@@ -1286,6 +1361,10 @@ static void check_decrypt_segment(const struct mesh_crypto_test *keys,
&segO, &segN,
&msg, &msg_len);
+ verify_bool("Crypto Decode-Parse", 0, true, status);
+ if (!status)
+ return;
+
if (ctl) {
net_mic64 = l_get_be64(pkt + pkt_len - 8);
show_data("EncryptedPayload", 7, pkt + 7, pkt_len - 7 - 8);
@@ -1416,7 +1495,7 @@ static void check_decrypt(const struct mesh_crypto_test *keys)
uint16_t app_msg_len = 0;
uint32_t calc_net_mic32, net_mic32 = 0;
uint64_t calc_net_mic64, net_mic64 = 0;
- bool net_ctl, net_segmented, net_rly, net_akf;
+ bool net_ctl, net_segmented, net_rly, net_akf, status;
uint8_t net_aid, net_ttl, nid, net_segO, net_segN = 0;
uint32_t net_seq, hdr, seqZero = 0;
uint16_t net_src, net_dst;
@@ -1501,8 +1580,14 @@ static void check_decrypt(const struct mesh_crypto_test *keys)
net_msg = packet + 7;
net_msg_len = packet_len - 7;
- mesh_crypto_network_clarify(packet, priv_key, keys->iv_index,
- &net_ctl, &net_ttl, &net_seq, &net_src);
+ status = mesh_crypto_network_clarify(packet, priv_key,
+ keys->iv_index, &net_ctl, &net_ttl, &net_seq,
+ &net_src);
+
+ verify_bool("Crypto Clarify", 0, true, status);
+ if (!status)
+ return;
+
show_str("Packet", 0, keys->packet[i]);
@@ -1731,42 +1816,67 @@ static void check_beacon(const struct mesh_crypto_test *keys)
{
uint8_t *net_key;
uint8_t *beacon_cmac;
- uint8_t beacon[22];
+ uint8_t *random = NULL;
+ uint8_t beacon[29];
uint8_t enc_key[16];
uint8_t net_id[8];
uint8_t cmac[8];
- uint64_t cmac_tmp;
+ uint64_t cmac_tmp = 0;
+
+ if (keys->beacon_type < 1 || keys->beacon_type > 2)
+ verify_uint8("Unknown Beacon", 0, true,
+ (keys->beacon_type >= 1 || keys->beacon_type <= 2));
net_key = l_util_from_hexstring(keys->net_key, NULL);
beacon_cmac = l_util_from_hexstring(keys->beacon_cmac, NULL);
- mesh_crypto_nkbk(net_key, enc_key);
+ if (keys->beacon_type == 1) {
+ mesh_crypto_nkbk(net_key, enc_key);
+ } else {
+ mesh_crypto_nkpk(net_key, enc_key);
+ random = l_util_from_hexstring(keys->rand, NULL);
+ }
+
mesh_crypto_k3(net_key, net_id);
l_info(COLOR_BLUE "[%s]" COLOR_OFF, keys->name);
verify_data("NetworkKey", 0, keys->net_key, net_key, 16);
+ show_uint8("Beacon Flags", 0, keys->beacon_flags);
show_uint32("IVindex", 0, keys->iv_index);
verify_data("BeaconKey", 0, keys->enc_key, enc_key, 16);
- verify_data("NetworkID", 0, keys->net_id, net_id, 8);
beacon[0] = keys->beacon_type;
- beacon[1] = keys->beacon_flags;
- memcpy(beacon + 2, net_id, 8);
- l_put_be32(keys->iv_index, beacon + 10);
- mesh_crypto_beacon_cmac(enc_key, net_id, keys->iv_index,
- !!(keys->beacon_flags & 0x01),
- !!(keys->beacon_flags & 0x02),
- &cmac_tmp);
-
- l_put_be64(cmac_tmp, cmac);
- l_put_be64(cmac_tmp, beacon + 14);
- verify_data("BeaconCMAC", 0, keys->beacon_cmac, cmac, 8);
- verify_data("Beacon", 0, keys->beacon, beacon, sizeof(beacon));
+ if (keys->beacon_type == 1) {
+ verify_data("NetworkID", 0, keys->net_id, net_id, 8);
+ beacon[1] = keys->beacon_flags;
+ memcpy(beacon + 2, net_id, 8);
+ l_put_be32(keys->iv_index, beacon + 10);
+ mesh_crypto_beacon_cmac(enc_key, net_id, keys->iv_index,
+ !!(keys->beacon_flags & 0x01),
+ !!(keys->beacon_flags & 0x02),
+ &cmac_tmp);
+
+ l_put_be64(cmac_tmp, cmac);
+ l_put_be64(cmac_tmp, beacon + 14);
+ verify_data("BeaconCMAC", 0, keys->beacon_cmac, cmac, 8);
+ verify_data("SNBeacon", 0, keys->beacon, beacon, 22);
+ } else {
+ show_data("Random", 0, random, sizeof(random));
+ memcpy(beacon + 1, random, 13);
+ beacon[14] = keys->beacon_flags;
+ l_put_be32(keys->iv_index, beacon + 15);
+ mesh_crypto_aes_ccm_encrypt(random, enc_key, NULL, 0,
+ beacon + 14, 5,
+ beacon + 14, NULL, 8);
+ verify_data("BeaconMIC", 0, keys->beacon_cmac, beacon + 19, 8);
+ verify_data("PrivBeacon", 0, keys->beacon, beacon, 27);
+ }
l_info("");
+ l_free(random);
l_free(beacon_cmac);
l_free(net_key);
}
@@ -2071,6 +2181,8 @@ int main(int argc, char *argv[])
/* Section 8.4 Beacon Sample Data */
check_beacon(&s8_4_3);
+ check_beacon(&s8_4_6_1);
+ check_beacon(&s8_4_6_2);
/* Section 8.6 Mesh Proxy Service sample data */
check_id_beacon(&s8_6_2);
--
2.39.1
