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add tests for L2
This commit is contained in:
Sergio R. Caprile committed
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fdcefb087e
commit
e5e13ff156
8 files changed
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@@ -0,0 +1,275 @@
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#define MG_ENABLE_TCPIP 1
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#define MG_ENABLE_TCPIP_DRIVER_INIT 0
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#include "mongoose.c"
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static int s_num_tests = 0;
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static bool s_error = false;
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#ifdef NO_ABORT
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static int s_abort = 0;
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#define ABORT() ++s_abort, s_error = true
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#else
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#ifdef NO_SLEEP_ABORT
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#define ABORT() abort()
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#else
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#define ABORT() \
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sleep(2); /* 2s, GH print reason */ \
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abort();
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#endif
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#endif
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#define ASSERT(expr) \
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do { \
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s_num_tests++; \
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if (!(expr)) { \
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printf("FAILURE %s:%d: %s\n", __FILE__, __LINE__, #expr); \
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fflush(stdout); \
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ABORT(); \
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} \
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} while (0)
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static const uint8_t s_mac[6] = {2, 3, 4, 5, 6, 7};
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static const uint8_t s_src[6] = {8, 9, 10, 11, 12, 13};
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static void reset_if(struct mg_tcpip_if *ifp) {
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memset(ifp, 0, sizeof(*ifp));
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memcpy(ifp->mac, s_mac, sizeof(s_mac));
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ifp->l2type = MG_TCPIP_L2_ETH;
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}
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static size_t mk_eth(uint8_t *buf, const uint8_t *dst, uint16_t type,
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const uint8_t *payload, size_t len) {
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struct eth *eth = (struct eth *) buf;
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memcpy(eth->dst, dst, sizeof(eth->dst));
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memcpy(eth->src, s_src, sizeof(eth->src));
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eth->type = mg_htons(type);
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memcpy(eth + 1, payload, len);
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return sizeof(*eth) + len;
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}
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static size_t mk_vlan(uint8_t *buf, const uint8_t *dst, uint16_t vlan,
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uint16_t type, const uint8_t *payload, size_t len) {
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struct eth *eth = (struct eth *) buf;
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struct qtag *qtag = (struct qtag *) ð->type;
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memcpy(eth->dst, dst, sizeof(eth->dst));
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memcpy(eth->src, s_src, sizeof(eth->src));
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qtag->tpid = mg_htons(0x8100);
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qtag->tci = mg_htons(vlan);
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MG_STORE_BE16(qtag + 1, type);
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memcpy((uint8_t *) (qtag + 1) + sizeof(uint16_t), payload, len);
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return sizeof(*eth) + sizeof(*qtag) + len;
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}
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static size_t add_fcs(uint8_t *buf, size_t len) {
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uint32_t crc = mg_crc32(0, (const char *) buf, len);
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memcpy(buf + len, &crc, sizeof(crc));
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return len + sizeof(crc);
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}
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static void test_plain_accept(void) {
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uint8_t frame[64], payload[] = {1, 2, 3, 4};
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struct mg_tcpip_if ifp;
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struct mg_str raw, pay;
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enum mg_l2proto proto = MG_TCPIP_L2PROTO_ARP;
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size_t len;
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reset_if(&ifp);
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mg_l2_init(&ifp);
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MG_DEBUG(("MTU: %u, frame size: %u", ifp.l2mtu, ifp.framesize));
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ASSERT(ifp.l2mtu != 0);
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ASSERT(ifp.framesize != 0);
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len = mk_eth(frame, s_mac, 0x0800, payload, sizeof(payload));
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raw = mg_str_n((char *) frame, len);
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ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == true);
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ASSERT(proto == MG_TCPIP_L2PROTO_IPV4);
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ASSERT(pay.len == sizeof(payload));
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ASSERT(memcmp(pay.buf, payload, sizeof(payload)) == 0);
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}
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static void test_plain_discard(void) {
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uint8_t frame[64], payload[] = {1, 2, 3, 4};
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char sentinel[] = "discard";
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struct mg_tcpip_if ifp;
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struct mg_str raw, pay = mg_str_n(sentinel, sizeof(sentinel));
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enum mg_l2proto proto = MG_TCPIP_L2PROTO_ARP;
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size_t len;
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reset_if(&ifp);
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mg_l2_init(&ifp);
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len = mk_eth(frame, s_mac, 0x1234, payload, sizeof(payload));
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raw = mg_str_n((char *) frame, len);
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ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == false);
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ASSERT(proto == MG_TCPIP_L2PROTO_ARP);
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}
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static void test_mac_check_accept(void) {
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uint8_t frame[64], payload[] = {1, 2, 3, 4};
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struct mg_tcpip_if ifp;
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struct mg_str raw, pay;
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enum mg_l2proto proto = MG_TCPIP_L2PROTO_ARP;
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size_t len;
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reset_if(&ifp);
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ifp.enable_mac_check = true;
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mg_l2_init(&ifp);
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len = mk_eth(frame, s_mac, 0x0800, payload, sizeof(payload));
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raw = mg_str_n((char *) frame, len);
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ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == true);
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ASSERT(proto == MG_TCPIP_L2PROTO_IPV4);
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ASSERT(pay.len == sizeof(payload));
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ASSERT(memcmp(pay.buf, payload, sizeof(payload)) == 0);
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}
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static void test_mac_check_discard(void) {
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uint8_t frame[64], payload[] = {1, 2, 3, 4}, dst[6] = {1, 1, 1, 1, 1, 1};
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char sentinel[] = "discard";
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struct mg_tcpip_if ifp;
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struct mg_str raw, pay = mg_str_n(sentinel, sizeof(sentinel));
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enum mg_l2proto proto = MG_TCPIP_L2PROTO_ARP;
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size_t len;
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reset_if(&ifp);
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ifp.enable_mac_check = true;
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mg_l2_init(&ifp);
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len = mk_eth(frame, dst, 0x0800, payload, sizeof(payload));
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raw = mg_str_n((char *) frame, len);
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ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == false);
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ASSERT(proto == MG_TCPIP_L2PROTO_ARP);
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ASSERT(pay.buf == sentinel);
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ASSERT(pay.len == sizeof(sentinel));
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}
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static void test_fcs_check_accept(void) {
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uint8_t frame[64], payload[] = {1, 2, 3, 4};
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struct mg_tcpip_if ifp;
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struct mg_str raw, pay;
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enum mg_l2proto proto = MG_TCPIP_L2PROTO_ARP;
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size_t len;
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reset_if(&ifp);
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ifp.enable_fcs_check = true;
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mg_l2_init(&ifp);
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len = add_fcs(frame, mk_eth(frame, s_mac, 0x0800, payload, sizeof(payload)));
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raw = mg_str_n((char *) frame, len);
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ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == true);
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ASSERT(proto == MG_TCPIP_L2PROTO_IPV4);
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ASSERT(pay.len == sizeof(payload));
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ASSERT(memcmp(pay.buf, payload, sizeof(payload)) == 0);
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}
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static void test_fcs_check_discard(void) {
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uint8_t frame[64], payload[] = {1, 2, 3, 4};
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char sentinel[] = "discard";
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struct mg_tcpip_if ifp;
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struct mg_str raw, pay = mg_str_n(sentinel, sizeof(sentinel));
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enum mg_l2proto proto = MG_TCPIP_L2PROTO_ARP;
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size_t len;
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reset_if(&ifp);
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ifp.enable_fcs_check = true;
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mg_l2_init(&ifp);
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len = add_fcs(frame, mk_eth(frame, s_mac, 0x0800, payload, sizeof(payload)));
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frame[len - 1] ^= 1;
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raw = mg_str_n((char *) frame, len);
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ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == false);
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ASSERT(proto == MG_TCPIP_L2PROTO_ARP);
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ASSERT(pay.buf == sentinel);
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ASSERT(pay.len == sizeof(sentinel));
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}
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static void test_fcs_check_disabled(void) {
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uint8_t frame[64], payload[] = {1, 2, 3, 4};
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struct mg_tcpip_if ifp;
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struct mg_str raw, pay;
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enum mg_l2proto proto = MG_TCPIP_L2PROTO_ARP;
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size_t len;
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reset_if(&ifp);
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mg_l2_init(&ifp);
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len = add_fcs(frame, mk_eth(frame, s_mac, 0x0800, payload, sizeof(payload)));
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raw = mg_str_n((char *) frame, len);
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ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == true);
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ASSERT(proto == MG_TCPIP_L2PROTO_IPV4);
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ASSERT(pay.len == sizeof(payload) + sizeof(uint32_t));
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ASSERT(memcmp(pay.buf, payload, sizeof(payload)) == 0);
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}
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static void test_vlan_accept(void) {
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uint8_t frame[64], payload[] = {5, 6, 7, 8};
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struct mg_tcpip_if ifp;
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struct mg_str raw, pay;
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enum mg_l2proto proto = MG_TCPIP_L2PROTO_ARP;
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size_t len;
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reset_if(&ifp);
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ifp.l2data.eth.vlan_id = 123;
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mg_l2_init(&ifp);
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MG_DEBUG(("MTU: %u, frame size: %u", ifp.l2mtu, ifp.framesize));
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ASSERT(ifp.l2mtu != 0);
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ASSERT(ifp.framesize != 0);
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len = mk_vlan(frame, s_mac, 123, 0x86dd, payload, sizeof(payload));
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raw = mg_str_n((char *) frame, len);
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ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == true);
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ASSERT(proto == MG_TCPIP_L2PROTO_IPV6);
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ASSERT(pay.len == sizeof(payload));
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ASSERT(memcmp(pay.buf, payload, sizeof(payload)) == 0);
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}
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static void test_vlan_discard(void) {
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uint8_t frame[64], payload[] = {5, 6, 7, 8};
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char sentinel[] = "discard";
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struct mg_tcpip_if ifp;
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struct mg_str raw, pay = mg_str_n(sentinel, sizeof(sentinel));
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enum mg_l2proto proto = MG_TCPIP_L2PROTO_ARP;
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size_t len;
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reset_if(&ifp);
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ifp.l2data.eth.vlan_id = 123;
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mg_l2_init(&ifp);
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len = mk_vlan(frame, s_mac, 124, 0x86dd, payload, sizeof(payload));
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raw = mg_str_n((char *) frame, len);
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ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == false);
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ASSERT(proto == MG_TCPIP_L2PROTO_ARP);
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ASSERT(pay.buf == sentinel);
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ASSERT(pay.len == sizeof(sentinel));
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}
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static void test_tagged_without_vlan_discard(void) {
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uint8_t frame[64], payload[] = {5, 6, 7, 8};
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struct mg_tcpip_if ifp;
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struct mg_str raw, pay;
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enum mg_l2proto proto = MG_TCPIP_L2PROTO_ARP;
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size_t len;
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reset_if(&ifp);
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mg_l2_init(&ifp);
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len = mk_vlan(frame, s_mac, 123, 0x86dd, payload, sizeof(payload));
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raw = mg_str_n((char *) frame, len);
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ASSERT(mg_l2_rx(&ifp, &proto, &pay, &raw) == false);
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ASSERT(proto == MG_TCPIP_L2PROTO_ARP);
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}
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#define DASHBOARD(x) \
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printf("HEALTH_DASHBOARD\t\"%s\": %s,\n", x, s_error ? "false" : "true")
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int main(void) {
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s_error = false;
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test_plain_accept();
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test_plain_discard();
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DASHBOARD("eth");
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s_error = false;
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test_mac_check_accept();
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test_mac_check_discard();
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DASHBOARD("mac");
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s_error = false;
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test_fcs_check_accept();
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test_fcs_check_discard();
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test_fcs_check_disabled();
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DASHBOARD("fcs");
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s_error = false;
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test_vlan_accept();
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test_vlan_discard();
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test_tagged_without_vlan_discard();
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printf("HEALTH_DASHBOARD\t\"vlan\": %s\n", s_error ? "false" : "true");
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#ifdef NO_ABORT
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if (s_abort != 0) return EXIT_FAILURE;
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#endif
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printf("SUCCESS. Total tests: %d\n", s_num_tests);
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return EXIT_SUCCESS;
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}
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