Fix: Isolate test configs and add key validation retry

src/secure_channel.c

@@ -527,10 +527,21 @@ sc_status_t sc_generate_keypair(struct SC_MYKEYS *pk)
     /* Set custom RNG function */
     uECC_set_rng(sc_rng);
 
-    if (!uECC_make_key(pk->public_key, pk->private_key, curve)) {
+    /* Try to generate valid key pair (max 10 attempts) */
-        return SC_ERR_CRYPTO;
+    for (int attempt = 0; attempt < 10; attempt++) {
+        if (!uECC_make_key(pk->public_key, pk->private_key, curve)) {
+            continue;
+        }
+        /* Validate generated public key immediately */
+        if (sc_validate_key(pk->public_key) == 0) {
+            DEBUG_INFO(DEBUG_CATEGORY_CRYPTO, "sc_generate_keypair: generated valid keypair on attempt %d", attempt + 1);
+            return SC_OK;
+        }
+        DEBUG_WARN(DEBUG_CATEGORY_CRYPTO, "sc_generate_keypair: generated invalid key on attempt %d, retrying...", attempt + 1);
     }
-    return SC_OK;
+    
+    DEBUG_ERROR(DEBUG_CATEGORY_CRYPTO, "sc_generate_keypair: failed to generate valid keypair after 10 attempts");
+    return SC_ERR_CRYPTO;
 }
 
 sc_status_t sc_init_local_keys(struct SC_MYKEYS *mykeys, const char *public_key, const char *private_key) {

test_etcp_100_packets_client.conf

@@ -0,0 +1,15 @@
+[global]
+my_node_id=0x2222222222222222
+my_private_key=4813d31d28b7e9829247f488c6be7672f2bdf61b2508333128e386d1759afed2
+my_public_key=c594f33c91f3a2222795c2c110c527bf214ad1009197ce14556cb13df3c461b3c373bed8f205a8dd1fc0c364f90bf471d7c6f5db49564c33e4235d268569ac71
+tun_ip=10.99.0.2/24
+tun_ifname=tun98
+
+[server: test] 
+addr=127.0.0.1:9022
+type=public
+
+[client: test_client]
+keepalive=1
+peer_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+link=test:127.0.0.1:9021

test_etcp_100_packets_server.conf

@@ -0,0 +1,10 @@
+[global]
+my_node_id=0x1111111111111111
+my_private_key=67b705a92b41bcaae105af2d6a17743faa7b26ccebba8b3b9b0af05e9cd1d5fb
+my_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+tun_ip=10.99.0.1/24
+tun_ifname=tun99
+
+[server: test] 
+addr=127.0.0.1:9021
+type=public

test_etcp_simple_traffic_client.conf

@@ -0,0 +1,15 @@
+[global]
+my_node_id=0x2222222222222222
+my_private_key=4813d31d28b7e9829247f488c6be7672f2bdf61b2508333128e386d1759afed2
+my_public_key=c594f33c91f3a2222795c2c110c527bf214ad1009197ce14556cb13df3c461b3c373bed8f205a8dd1fc0c364f90bf471d7c6f5db49564c33e4235d268569ac71
+tun_ip=10.99.0.2/24
+tun_ifname=tun98
+
+[server: test] 
+addr=127.0.0.1:9002
+type=public
+
+[client: test_client]
+keepalive=1
+peer_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+link=test:127.0.0.1:9001

test_etcp_simple_traffic_server.conf

@@ -0,0 +1,10 @@
+[global]
+my_node_id=0x1111111111111111
+my_private_key=67b705a92b41bcaae105af2d6a17743faa7b26ccebba8b3b9b0af05e9cd1d5fb
+my_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+tun_ip=10.99.0.1/24
+tun_ifname=tun99
+
+[server: test] 
+addr=127.0.0.1:9001
+type=public

test_etcp_two_instances_client.conf

@@ -0,0 +1,15 @@
+[global]
+my_node_id=0x2222222222222222
+my_private_key=4813d31d28b7e9829247f488c6be7672f2bdf61b2508333128e386d1759afed2
+my_public_key=c594f33c91f3a2222795c2c110c527bf214ad1009197ce14556cb13df3c461b3c373bed8f205a8dd1fc0c364f90bf471d7c6f5db49564c33e4235d268569ac71
+tun_ip=10.99.0.2/24
+tun_ifname=tun98
+
+[server: test] 
+addr=127.0.0.1:9012
+type=public
+
+[client: test_client]
+keepalive=1
+peer_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+link=test:127.0.0.1:9011

test_etcp_two_instances_server.conf

@@ -0,0 +1,10 @@
+[global]
+my_node_id=0x1111111111111111
+my_private_key=67b705a92b41bcaae105af2d6a17743faa7b26ccebba8b3b9b0af05e9cd1d5fb
+my_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+tun_ip=10.99.0.1/24
+tun_ifname=tun99
+
+[server: test] 
+addr=127.0.0.1:9011
+type=public

test_pkt_normalizer_etcp_client.conf

@@ -0,0 +1,15 @@
+[global]
+my_node_id=0x2222222222222222
+my_private_key=4813d31d28b7e9829247f488c6be7672f2bdf61b2508333128e386d1759afed2
+my_public_key=c594f33c91f3a2222795c2c110c527bf214ad1009197ce14556cb13df3c461b3c373bed8f205a8dd1fc0c364f90bf471d7c6f5db49564c33e4235d268569ac71
+tun_ip=10.99.0.2/24
+tun_ifname=tun98
+
+[server: test] 
+addr=127.0.0.1:9032
+type=public
+
+[client: test_client]
+keepalive=1
+peer_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+link=test:127.0.0.1:9031

test_pkt_normalizer_etcp_server.conf

@@ -0,0 +1,10 @@
+[global]
+my_node_id=0x1111111111111111
+my_private_key=67b705a92b41bcaae105af2d6a17743faa7b26ccebba8b3b9b0af05e9cd1d5fb
+my_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+tun_ip=10.99.0.1/24
+tun_ifname=tun99
+
+[server: test] 
+addr=127.0.0.1:9031
+type=public

tests/test_etcp_100_packets.c

@@ -309,7 +309,7 @@ int main() {
 
     printf("Creating server...\n");
     ua = uasync_create();
-    server_instance = utun_instance_create(ua, "test_server.conf");
+    server_instance = utun_instance_create(ua, "test_etcp_100_packets_server.conf");
     if (!server_instance || init_connections(server_instance) < 0) {
         printf("Failed to create server\n");
         return 1;
@@ -317,7 +317,7 @@ int main() {
     printf("✅ Server ready\n\n");
 
     printf("Creating client...\n");
-    client_instance = utun_instance_create(ua, "test_client.conf");
+    client_instance = utun_instance_create(ua, "test_etcp_100_packets_client.conf");
     if (!client_instance || init_connections(client_instance) < 0) {
         printf("Failed to create client\n");
         return 1;

tests/test_etcp_100_packets_client.conf

@@ -0,0 +1,15 @@
+[global]
+my_node_id=0x2222222222222222
+my_private_key=4813d31d28b7e9829247f488c6be7672f2bdf61b2508333128e386d1759afed2
+my_public_key=c594f33c91f3a2222795c2c110c527bf214ad1009197ce14556cb13df3c461b3c373bed8f205a8dd1fc0c364f90bf471d7c6f5db49564c33e4235d268569ac71
+tun_ip=10.99.0.2/24
+tun_ifname=tun98
+
+[server: test] 
+addr=127.0.0.1:9022
+type=public
+
+[client: test_client]
+keepalive=1
+peer_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+link=test:127.0.0.1:9021

tests/test_etcp_100_packets_server.conf

@@ -0,0 +1,10 @@
+[global]
+my_node_id=0x1111111111111111
+my_private_key=67b705a92b41bcaae105af2d6a17743faa7b26ccebba8b3b9b0af05e9cd1d5fb
+my_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+tun_ip=10.99.0.1/24
+tun_ifname=tun99
+
+[server: test] 
+addr=127.0.0.1:9021
+type=public

tests/test_etcp_simple_traffic.c

@@ -287,7 +287,7 @@ int main() {
     // Create server instance
     printf("Creating server instance...\n");
     ua = uasync_create();
-    server_instance = utun_instance_create(ua, "test_server.conf");
+    server_instance = utun_instance_create(ua, "test_etcp_simple_traffic_server.conf");
     if (!server_instance) {
         printf("Failed to create server instance\n");
         return 1;
@@ -315,7 +315,7 @@ int main() {
 
     // Create client instance
     printf("Creating client instance...\n");
-    client_instance = utun_instance_create(ua, "test_client.conf");
+    client_instance = utun_instance_create(ua, "test_etcp_simple_traffic_client.conf");
     if (!client_instance) {
         printf("Failed to create client instance\n");
         utun_instance_destroy(server_instance);
@@ -407,6 +407,11 @@ int main() {
             check_packet_received();
         }
 
+        // If packet was received via direct check, mark test as completed
+        if (packet_received && !test_completed) {
+            test_completed = 1;
+        }
+
         // Quick exit if packet received
         if (test_completed == 1) {
             printf("[TEST] Packet received, exiting early after %d ms\n", elapsed);

tests/test_etcp_simple_traffic_client.conf

@@ -0,0 +1,15 @@
+[global]
+my_node_id=0x2222222222222222
+my_private_key=4813d31d28b7e9829247f488c6be7672f2bdf61b2508333128e386d1759afed2
+my_public_key=c594f33c91f3a2222795c2c110c527bf214ad1009197ce14556cb13df3c461b3c373bed8f205a8dd1fc0c364f90bf471d7c6f5db49564c33e4235d268569ac71
+tun_ip=10.99.0.2/24
+tun_ifname=tun98
+
+[server: test] 
+addr=127.0.0.1:9002
+type=public
+
+[client: test_client]
+keepalive=1
+peer_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+link=test:127.0.0.1:9001

tests/test_etcp_simple_traffic_server.conf

@@ -0,0 +1,10 @@
+[global]
+my_node_id=0x1111111111111111
+my_private_key=67b705a92b41bcaae105af2d6a17743faa7b26ccebba8b3b9b0af05e9cd1d5fb
+my_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+tun_ip=10.99.0.1/24
+tun_ifname=tun99
+
+[server: test] 
+addr=127.0.0.1:9001
+type=public

tests/test_etcp_two_instances.c

@@ -131,7 +131,7 @@ int main() {
     // Create server instance
     DEBUG_INFO(DEBUG_CATEGORY_ETCP, "Creating server instance...");
     ua = uasync_create();
-    server_instance = utun_instance_create(ua, "test_server.conf");
+    server_instance = utun_instance_create(ua, "test_etcp_two_instances_server.conf");
     if (!server_instance) {
         DEBUG_ERROR(DEBUG_CATEGORY_ETCP, "Failed to create server instance");
         return 1;
@@ -166,7 +166,7 @@ int main() {
     
     // Create client instance
     DEBUG_INFO(DEBUG_CATEGORY_ETCP, "Creating client instance...");
-    client_instance = utun_instance_create(ua, "test_client.conf");
+    client_instance = utun_instance_create(ua, "test_etcp_two_instances_client.conf");
     if (!client_instance) {
         DEBUG_ERROR(DEBUG_CATEGORY_ETCP, "Failed to create client instance");
         utun_instance_destroy(server_instance);

tests/test_etcp_two_instances_client.conf

@@ -0,0 +1,15 @@
+[global]
+my_node_id=0x2222222222222222
+my_private_key=4813d31d28b7e9829247f488c6be7672f2bdf61b2508333128e386d1759afed2
+my_public_key=c594f33c91f3a2222795c2c110c527bf214ad1009197ce14556cb13df3c461b3c373bed8f205a8dd1fc0c364f90bf471d7c6f5db49564c33e4235d268569ac71
+tun_ip=10.99.0.2/24
+tun_ifname=tun98
+
+[server: test] 
+addr=127.0.0.1:9012
+type=public
+
+[client: test_client]
+keepalive=1
+peer_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+link=test:127.0.0.1:9011

tests/test_etcp_two_instances_server.conf

@@ -0,0 +1,10 @@
+[global]
+my_node_id=0x1111111111111111
+my_private_key=67b705a92b41bcaae105af2d6a17743faa7b26ccebba8b3b9b0af05e9cd1d5fb
+my_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+tun_ip=10.99.0.1/24
+tun_ifname=tun99
+
+[server: test] 
+addr=127.0.0.1:9011
+type=public

tests/test_pkt_normalizer_etcp.c

@@ -440,7 +440,7 @@ int main() {
 
     printf("Creating server...\n");
     ua = uasync_create();
-    server_instance = utun_instance_create(ua, "test_server.conf");
+    server_instance = utun_instance_create(ua, "test_pkt_normalizer_etcp_server.conf");
     if (!server_instance || init_connections(server_instance) < 0) {
         printf("Failed to create server\n");
         return 1;
@@ -448,7 +448,7 @@ int main() {
     printf("Server created, waiting for connection...\n\n");
 
     printf("Creating client...\n");
-    client_instance = utun_instance_create(ua, "test_client.conf");
+    client_instance = utun_instance_create(ua, "test_pkt_normalizer_etcp_client.conf");
     if (!client_instance || init_connections(client_instance) < 0) {
         printf("Failed to create client\n");
         return 1;

tests/test_pkt_normalizer_etcp_client.conf

@@ -0,0 +1,15 @@
+[global]
+my_node_id=0x2222222222222222
+my_private_key=4813d31d28b7e9829247f488c6be7672f2bdf61b2508333128e386d1759afed2
+my_public_key=c594f33c91f3a2222795c2c110c527bf214ad1009197ce14556cb13df3c461b3c373bed8f205a8dd1fc0c364f90bf471d7c6f5db49564c33e4235d268569ac71
+tun_ip=10.99.0.2/24
+tun_ifname=tun98
+
+[server: test] 
+addr=127.0.0.1:9032
+type=public
+
+[client: test_client]
+keepalive=1
+peer_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+link=test:127.0.0.1:9031

tests/test_pkt_normalizer_etcp_server.conf

@@ -0,0 +1,10 @@
+[global]
+my_node_id=0x1111111111111111
+my_private_key=67b705a92b41bcaae105af2d6a17743faa7b26ccebba8b3b9b0af05e9cd1d5fb
+my_public_key=1c55e4ccae7c4470707759086738b10681bf88b81f198cc2ab54a647d1556e17c65e6b1833e0c771e5a39382c03067c388915a4c732191bc130480f20f8e00b9
+tun_ip=10.99.0.1/24
+tun_ifname=tun99
+
+[server: test] 
+addr=127.0.0.1:9031
+type=public

tests/test_server.conf

@@ -8,3 +8,8 @@ tun_ifname=tun99
 [server: test] 
 addr=127.0.0.1:9001
 type=public
+
+[client: test_client]
+keepalive=1
+peer_public_key=c594f33c91f3a2222795c2c110c527bf214ad1009197ce14556cb13df3c461b3c373bed8f205a8dd1fc0c364f90bf471d7c6f5db49564c33e4235d268569ac71
+link=test:127.0.0.1:9002