Refactored packet API to support struct layer (using union to contain different types of encapsulation headers)

src/session/test/gtest_state_tcp_init_to_opening.cpp

@@ -66,6 +66,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYN)
 
     // C2S SYN Packet
     printf("\n=> Packet Parse: TCP C2S SYN packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt1_c2s_syn, sizeof(tcp_pkt1_c2s_syn));
     printf("<= Packet Parse: done\n\n");
 
@@ -144,6 +145,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYNACK)
 
     // S2C SYNACK Packet
     printf("\n=> Packet Parse: TCP S2C SYNACK packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt2_s2c_syn_ack, sizeof(tcp_pkt2_s2c_syn_ack));
     printf("<= Packet Parse: done\n\n");
 
@@ -222,6 +224,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYN_SYNACK)
 
     // C2S SYN Packet
     printf("\n=> Packet Parse: TCP C2S SYN packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt1_c2s_syn, sizeof(tcp_pkt1_c2s_syn));
     printf("<= Packet Parse: done\n\n");
 
@@ -233,6 +236,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYN_SYNACK)
 
     // S2C SYNACK Packet
     printf("\n=> Packet Parse: TCP S2C SYNACK packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt2_s2c_syn_ack, sizeof(tcp_pkt2_s2c_syn_ack));
     printf("<= Packet Parse: done\n\n");
 
@@ -311,6 +315,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYN_SYNACK_ACK)
 
     // C2S SYN Packet
     printf("\n=> Packet Parse: TCP C2S SYN packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt1_c2s_syn, sizeof(tcp_pkt1_c2s_syn));
     printf("<= Packet Parse: done\n\n");
 
@@ -322,6 +327,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYN_SYNACK_ACK)
 
     // S2C SYNACK Packet
     printf("\n=> Packet Parse: TCP S2C SYNACK packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt2_s2c_syn_ack, sizeof(tcp_pkt2_s2c_syn_ack));
     printf("<= Packet Parse: done\n\n");
 
@@ -333,6 +339,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYN_SYNACK_ACK)
 
     // C2S ACK Packet
     printf("\n=> Packet Parse: TCP C2S ACK packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt3_c2s_ack, sizeof(tcp_pkt3_c2s_ack));
     printf("<= Packet Parse: done\n\n");
 
@@ -413,6 +420,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYN_RETRANSMISSION)
 
     // C2S SYN Packet
     printf("\n=> Packet Parse: TCP C2S SYN packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt1_c2s_syn, sizeof(tcp_pkt1_c2s_syn));
     printf("<= Packet Parse: done\n\n");
 
@@ -426,6 +434,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYN_RETRANSMISSION)
     printf("\n=> Packet Parse: TCP C2S SYN retransmission packet\n");
     char syn_retransmission[1500] = {0};
     memcpy(syn_retransmission, tcp_pkt1_c2s_syn, sizeof(tcp_pkt1_c2s_syn));
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)syn_retransmission, sizeof(tcp_pkt1_c2s_syn));
     const struct raw_layer *ipv4_layer = packet_get_innermost_raw_layer(&pkt, LAYER_PROTO_IPV4);
     struct ip *hdr = (struct ip *)ipv4_layer->hdr_ptr;
@@ -509,6 +518,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYNACK_RETRANSMISSION)
 
     // S2C SYNACK Packet
     printf("\n=> Packet Parse: TCP S2C SYNACK packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt2_s2c_syn_ack, sizeof(tcp_pkt2_s2c_syn_ack));
     printf("<= Packet Parse: done\n\n");
 
@@ -522,6 +532,7 @@ TEST(TCP_INIT_TO_OPENING, BY_SYNACK_RETRANSMISSION)
     printf("\n=> Packet Parse: TCP S2C SYNACK retransmission packet\n");
     char tcp_pkt_s2c_synack_retransmission[1500] = {0};
     memcpy(tcp_pkt_s2c_synack_retransmission, tcp_pkt2_s2c_syn_ack, sizeof(tcp_pkt2_s2c_syn_ack));
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt_s2c_synack_retransmission, sizeof(tcp_pkt2_s2c_syn_ack));
     const struct raw_layer *ipv4_layer = packet_get_innermost_raw_layer(&pkt, LAYER_PROTO_IPV4);
     EXPECT_TRUE(ipv4_layer);
@@ -604,6 +615,7 @@ TEST(TCP_INIT_TO_OPENING, BY_C2S_ASMMETRIC)
 
     // C2S SYN Packet
     printf("\n=> Packet Parse: TCP C2S SYN packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt1_c2s_syn, sizeof(tcp_pkt1_c2s_syn));
     printf("<= Packet Parse: done\n\n");
 
@@ -615,6 +627,7 @@ TEST(TCP_INIT_TO_OPENING, BY_C2S_ASMMETRIC)
 
     // C2S ACK Packet
     printf("\n=> Packet Parse: TCP C2S ACK packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt3_c2s_ack, sizeof(tcp_pkt3_c2s_ack));
     printf("<= Packet Parse: done\n\n");
 
@@ -693,6 +706,7 @@ TEST(TCP_INIT_TO_OPENING, BY_S2C_ASMMETRIC)
 
     // S2C SYNACK Packet
     printf("\n=> Packet Parse: TCP S2C SYNACK packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt2_s2c_syn_ack, sizeof(tcp_pkt2_s2c_syn_ack));
     printf("<= Packet Parse: done\n\n");
 
@@ -704,6 +718,7 @@ TEST(TCP_INIT_TO_OPENING, BY_S2C_ASMMETRIC)
 
     // S2C ACK Packet
     printf("\n=> Packet Parse: TCP S2C ACK packet\n");
+    memset(&pkt, 0, sizeof(pkt));
     packet_parse(&pkt, (const char *)tcp_pkt5_s2c_ack, sizeof(tcp_pkt5_s2c_ack));
     printf("<= Packet Parse: done\n\n");