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-rw-r--r--test/unit/dhcp/test_dhcp.c1103
1 files changed, 1103 insertions, 0 deletions
diff --git a/test/unit/dhcp/test_dhcp.c b/test/unit/dhcp/test_dhcp.c
new file mode 100644
index 00000000000..ac8a2191cde
--- /dev/null
+++ b/test/unit/dhcp/test_dhcp.c
@@ -0,0 +1,1103 @@
+#include "test_dhcp.h"
+
+#include "lwip/netif.h"
+#include "lwip/dhcp.h"
+#include "lwip/prot/dhcp.h"
+#include "lwip/etharp.h"
+#include "lwip/inet.h"
+#include "netif/ethernet.h"
+
+#if LWIP_ACD
+#if LWIP_DHCP_DOES_ACD_CHECK
+#define DHCP_TEST_NUM_ARP_FRAMES 5
+#else
+#define DHCP_TEST_NUM_ARP_FRAMES 0
+#endif
+#else
+#define DHCP_TEST_NUM_ARP_FRAMES 1
+#endif
+
+
+static struct netif net_test;
+
+static const u8_t broadcast[6] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+
+static const u8_t magic_cookie[] = { 0x63, 0x82, 0x53, 0x63 };
+
+static u8_t dhcp_offer[] = {
+ 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, /* To unit */
+ 0x00, 0x0F, 0xEE, 0x30, 0xAB, 0x22, /* From Remote host */
+ 0x08, 0x00, /* Protocol: IP */
+ 0x45, 0x10, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00, 0x80, 0x11, 0x36, 0xcc, 0xc3, 0xaa, 0xbd, 0xab, 0xc3, 0xaa, 0xbd, 0xc8, /* IP header */
+ 0x00, 0x43, 0x00, 0x44, 0x01, 0x34, 0x00, 0x00, /* UDP header */
+
+ 0x02, /* Type == Boot reply */
+ 0x01, 0x06, /* Hw Ethernet, 6 bytes addrlen */
+ 0x00, /* 0 hops */
+ 0xAA, 0xAA, 0xAA, 0xAA, /* Transaction id, will be overwritten */
+ 0x00, 0x00, /* 0 seconds elapsed */
+ 0x00, 0x00, /* Flags (unicast) */
+ 0x00, 0x00, 0x00, 0x00, /* Client ip */
+ 0xc3, 0xaa, 0xbd, 0xc8, /* Your IP */
+ 0xc3, 0xaa, 0xbd, 0xab, /* DHCP server ip */
+ 0x00, 0x00, 0x00, 0x00, /* relay agent */
+ 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* MAC addr + padding */
+
+ /* Empty server name and boot file name */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+
+ 0x63, 0x82, 0x53, 0x63, /* Magic cookie */
+ 0x35, 0x01, 0x02, /* Message type: Offer */
+ 0x36, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* Server identifier (IP) */
+ 0x33, 0x04, 0x00, 0x00, 0x00, 0x78, /* Lease time 2 minutes */
+ 0x03, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* Router IP */
+ 0x01, 0x04, 0xff, 0xff, 0xff, 0x00, /* Subnet mask */
+ 0xff, /* End option */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Padding */
+};
+
+static u8_t dhcp_ack[] = {
+ 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, /* To unit */
+ 0x00, 0x0f, 0xEE, 0x30, 0xAB, 0x22, /* From remote host */
+ 0x08, 0x00, /* Proto IP */
+ 0x45, 0x10, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00, 0x80, 0x11, 0x36, 0xcc, 0xc3, 0xaa, 0xbd, 0xab, 0xc3, 0xaa, 0xbd, 0xc8, /* IP header */
+ 0x00, 0x43, 0x00, 0x44, 0x01, 0x34, 0x00, 0x00, /* UDP header */
+ 0x02, /* Bootp reply */
+ 0x01, 0x06, /* Hw type Eth, len 6 */
+ 0x00, /* 0 hops */
+ 0xAA, 0xAA, 0xAA, 0xAA,
+ 0x00, 0x00, /* 0 seconds elapsed */
+ 0x00, 0x00, /* Flags (unicast) */
+ 0x00, 0x00, 0x00, 0x00, /* Client IP */
+ 0xc3, 0xaa, 0xbd, 0xc8, /* Your IP */
+ 0xc3, 0xaa, 0xbd, 0xab, /* DHCP server IP */
+ 0x00, 0x00, 0x00, 0x00, /* Relay agent */
+ 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Macaddr + padding */
+
+ /* Empty server name and boot file name */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+
+ 0x63, 0x82, 0x53, 0x63, /* Magic cookie */
+ 0x35, 0x01, 0x05, /* Dhcp message type ack */
+ 0x36, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* DHCP server identifier */
+ 0x33, 0x04, 0x00, 0x00, 0x00, 0x78, /* Lease time 2 minutes */
+ 0x03, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* Router IP */
+ 0x01, 0x04, 0xff, 0xff, 0xff, 0x00, /* Netmask */
+ 0xff, /* End marker */
+
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Padding */
+};
+
+static const u8_t arpreply[] = {
+ 0x00, 0x23, 0xC1, 0xDE, 0xD0, 0x0D, /* dst mac */
+ 0x00, 0x32, 0x44, 0x20, 0x01, 0x02, /* src mac */
+ 0x08, 0x06, /* proto arp */
+ 0x00, 0x01, /* hw eth */
+ 0x08, 0x00, /* proto ip */
+ 0x06, /* hw addr len 6 */
+ 0x04, /* proto addr len 4 */
+ 0x00, 0x02, /* arp reply */
+ 0x00, 0x32, 0x44, 0x20, 0x01, 0x02, /* sender mac */
+ 0xc3, 0xaa, 0xbd, 0xc8, /* sender ip */
+ 0x00, 0x23, 0xC1, 0xDE, 0xD0, 0x0D, /* target mac */
+ 0x00, 0x00, 0x00, 0x00, /* target ip */
+};
+
+static int txpacket;
+static enum tcase {
+ TEST_LWIP_DHCP,
+ TEST_LWIP_DHCP_NAK,
+ TEST_LWIP_DHCP_RELAY,
+ TEST_LWIP_DHCP_NAK_NO_ENDMARKER,
+ TEST_LWIP_DHCP_INVALID_OVERLOAD,
+ TEST_NONE
+} tcase;
+
+static int debug = 0;
+static void setdebug(int a) {debug = a;}
+
+static int tick = 0;
+static void tick_lwip(void)
+{
+ tick++;
+#if LWIP_DHCP_DOES_ACD_CHECK
+ acd_tmr();
+#endif
+ if (tick % 5 == 0) {
+ dhcp_fine_tmr();
+ }
+ if (tick % 600 == 0) {
+ dhcp_coarse_tmr();
+ }
+}
+
+static void send_pkt(struct netif *netif, const u8_t *data, size_t len)
+{
+ struct pbuf *p, *q;
+ LWIP_ASSERT("pkt too big", len <= 0xFFFF);
+ p = pbuf_alloc(PBUF_RAW, (u16_t)len, PBUF_POOL);
+
+ if (debug) {
+ /* Dump data */
+ u32_t i;
+ printf("RX data (len %d)", p->tot_len);
+ for (i = 0; i < len; i++) {
+ printf(" %02X", data[i]);
+ }
+ printf("\n");
+ }
+
+ fail_unless(p != NULL);
+ for(q = p; q != NULL; q = q->next) {
+ memcpy(q->payload, data, q->len);
+ data += q->len;
+ }
+ netif->input(p, netif);
+}
+
+static err_t lwip_tx_func(struct netif *netif, struct pbuf *p);
+
+static err_t testif_init(struct netif *netif)
+{
+ netif->name[0] = 'c';
+ netif->name[1] = 'h';
+ netif->output = etharp_output;
+ netif->linkoutput = lwip_tx_func;
+ netif->mtu = 1500;
+ netif->hwaddr_len = 6;
+ netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP;
+
+ netif->hwaddr[0] = 0x00;
+ netif->hwaddr[1] = 0x23;
+ netif->hwaddr[2] = 0xC1;
+ netif->hwaddr[3] = 0xDE;
+ netif->hwaddr[4] = 0xD0;
+ netif->hwaddr[5] = 0x0D;
+
+ return ERR_OK;
+}
+
+static void dhcp_setup(void)
+{
+ txpacket = 0;
+ lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT));
+}
+
+static void dhcp_teardown(void)
+{
+ lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT));
+}
+
+static void check_pkt(struct pbuf *p, u32_t pos, const u8_t *mem, u32_t len)
+{
+ u8_t *data;
+
+ fail_if((pos + len) > p->tot_len);
+ while (pos > p->len && p->next) {
+ pos -= p->len;
+ p = p->next;
+ }
+ fail_if(p == NULL);
+ fail_unless(pos + len <= p->len); /* All data we seek within same pbuf */
+
+ data = (u8_t*)p->payload;
+ fail_if(memcmp(&data[pos], mem, len), "data at pos %d, len %d in packet %d did not match", pos, len, txpacket);
+}
+
+static void check_pkt_fuzzy(struct pbuf *p, u32_t startpos, const u8_t *mem, u32_t len)
+{
+ int found;
+ u32_t i;
+ u8_t *data;
+
+ fail_if((startpos + len) > p->tot_len);
+ while (startpos > p->len && p->next) {
+ startpos -= p->len;
+ p = p->next;
+ }
+ fail_if(p == NULL);
+ fail_unless(startpos + len <= p->len); /* All data we seek within same pbuf */
+
+ found = 0;
+ data = (u8_t*)p->payload;
+ for (i = startpos; i <= (p->len - len); i++) {
+ if (memcmp(&data[i], mem, len) == 0) {
+ found = 1;
+ break;
+ }
+ }
+ fail_unless(found);
+}
+
+static err_t lwip_tx_func(struct netif *netif, struct pbuf *p)
+{
+ fail_unless(netif == &net_test);
+ txpacket++;
+
+ if (debug) {
+ struct pbuf *pp = p;
+ /* Dump data */
+ printf("TX data (pkt %d, len %d, tick %d)", txpacket, p->tot_len, tick);
+ do {
+ int i;
+ for (i = 0; i < pp->len; i++) {
+ printf(" %02X", ((u8_t *) pp->payload)[i]);
+ }
+ if (pp->next) {
+ pp = pp->next;
+ }
+ } while (pp->next);
+ printf("\n");
+ }
+
+ switch (tcase) {
+ case TEST_LWIP_DHCP:
+ switch (txpacket) {
+ case 1:
+ case 2:
+ {
+ const u8_t ipproto[] = { 0x08, 0x00 };
+ const u8_t bootp_start[] = { 0x01, 0x01, 0x06, 0x00}; /* bootp request, eth, hwaddr len 6, 0 hops */
+ const u8_t ipaddrs[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+ check_pkt(p, 0, broadcast, 6); /* eth level dest: broadcast */
+ check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */
+
+ check_pkt(p, 12, ipproto, sizeof(ipproto)); /* eth level proto: ip */
+
+ check_pkt(p, 42, bootp_start, sizeof(bootp_start));
+
+ check_pkt(p, 53, ipaddrs, sizeof(ipaddrs));
+
+ check_pkt(p, 70, netif->hwaddr, 6); /* mac addr inside bootp */
+
+ check_pkt(p, 278, magic_cookie, sizeof(magic_cookie));
+
+ /* Check dhcp message type, can be at different positions */
+ if (txpacket == 1) {
+ u8_t dhcp_discover_opt[] = { 0x35, 0x01, 0x01 };
+ check_pkt_fuzzy(p, 282, dhcp_discover_opt, sizeof(dhcp_discover_opt));
+ } else if (txpacket == 2) {
+ u8_t dhcp_request_opt[] = { 0x35, 0x01, 0x03 };
+ u8_t requested_ipaddr[] = { 0x32, 0x04, 0xc3, 0xaa, 0xbd, 0xc8 }; /* Ask for offered IP */
+
+ check_pkt_fuzzy(p, 282, dhcp_request_opt, sizeof(dhcp_request_opt));
+ check_pkt_fuzzy(p, 282, requested_ipaddr, sizeof(requested_ipaddr));
+ }
+ break;
+ }
+#if DHCP_TEST_NUM_ARP_FRAMES > 0
+ case 3:
+#if DHCP_TEST_NUM_ARP_FRAMES > 1
+ case 4:
+#if DHCP_TEST_NUM_ARP_FRAMES > 2
+ case 5:
+#if DHCP_TEST_NUM_ARP_FRAMES > 3
+ case 6:
+#if DHCP_TEST_NUM_ARP_FRAMES > 4
+ case 7:
+#endif
+#endif
+#endif
+#endif
+ {
+ const u8_t arpproto[] = { 0x08, 0x06 };
+
+ check_pkt(p, 0, broadcast, 6); /* eth level dest: broadcast */
+ check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */
+
+ check_pkt(p, 12, arpproto, sizeof(arpproto)); /* eth level proto: ip */
+ break;
+ }
+#endif
+ default:
+ fail();
+ break;
+ }
+ break;
+
+ case TEST_LWIP_DHCP_NAK:
+ {
+ const u8_t ipproto[] = { 0x08, 0x00 };
+ const u8_t bootp_start[] = { 0x01, 0x01, 0x06, 0x00}; /* bootp request, eth, hwaddr len 6, 0 hops */
+ const u8_t ipaddrs[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ const u8_t dhcp_nak_opt[] = { 0x35, 0x01, 0x04 };
+ const u8_t requested_ipaddr[] = { 0x32, 0x04, 0xc3, 0xaa, 0xbd, 0xc8 }; /* offered IP */
+
+ fail_unless(txpacket == 4);
+ check_pkt(p, 0, broadcast, 6); /* eth level dest: broadcast */
+ check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */
+
+ check_pkt(p, 12, ipproto, sizeof(ipproto)); /* eth level proto: ip */
+
+ check_pkt(p, 42, bootp_start, sizeof(bootp_start));
+
+ check_pkt(p, 53, ipaddrs, sizeof(ipaddrs));
+
+ check_pkt(p, 70, netif->hwaddr, 6); /* mac addr inside bootp */
+
+ check_pkt(p, 278, magic_cookie, sizeof(magic_cookie));
+
+ check_pkt_fuzzy(p, 282, dhcp_nak_opt, sizeof(dhcp_nak_opt)); /* NAK the ack */
+
+ check_pkt_fuzzy(p, 282, requested_ipaddr, sizeof(requested_ipaddr));
+ break;
+ }
+
+ case TEST_LWIP_DHCP_RELAY:
+ switch (txpacket) {
+ case 1:
+ case 2:
+ {
+ const u8_t ipproto[] = { 0x08, 0x00 };
+ const u8_t bootp_start[] = { 0x01, 0x01, 0x06, 0x00}; /* bootp request, eth, hwaddr len 6, 0 hops */
+ const u8_t ipaddrs[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+ check_pkt(p, 0, broadcast, 6); /* eth level dest: broadcast */
+ check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */
+
+ check_pkt(p, 12, ipproto, sizeof(ipproto)); /* eth level proto: ip */
+
+ check_pkt(p, 42, bootp_start, sizeof(bootp_start));
+
+ check_pkt(p, 53, ipaddrs, sizeof(ipaddrs));
+
+ check_pkt(p, 70, netif->hwaddr, 6); /* mac addr inside bootp */
+
+ check_pkt(p, 278, magic_cookie, sizeof(magic_cookie));
+
+ /* Check dhcp message type, can be at different positions */
+ if (txpacket == 1) {
+ u8_t dhcp_discover_opt[] = { 0x35, 0x01, 0x01 };
+ check_pkt_fuzzy(p, 282, dhcp_discover_opt, sizeof(dhcp_discover_opt));
+ } else if (txpacket == 2) {
+ u8_t dhcp_request_opt[] = { 0x35, 0x01, 0x03 };
+ u8_t requested_ipaddr[] = { 0x32, 0x04, 0x4f, 0x8a, 0x33, 0x05 }; /* Ask for offered IP */
+
+ check_pkt_fuzzy(p, 282, dhcp_request_opt, sizeof(dhcp_request_opt));
+ check_pkt_fuzzy(p, 282, requested_ipaddr, sizeof(requested_ipaddr));
+ }
+ break;
+ }
+ case 3:
+#if DHCP_TEST_NUM_ARP_FRAMES > 0
+ case 4:
+#if DHCP_TEST_NUM_ARP_FRAMES > 1
+ case 5:
+#if DHCP_TEST_NUM_ARP_FRAMES > 2
+ case 6:
+#if DHCP_TEST_NUM_ARP_FRAMES > 3
+ case 7:
+#if DHCP_TEST_NUM_ARP_FRAMES > 4
+ case 8:
+#endif
+#endif
+#endif
+#endif
+ {
+ const u8_t arpproto[] = { 0x08, 0x06 };
+
+ check_pkt(p, 0, broadcast, 6); /* eth level dest: broadcast */
+ check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */
+
+ check_pkt(p, 12, arpproto, sizeof(arpproto)); /* eth level proto: ip */
+ break;
+ }
+#endif
+ case 4 + DHCP_TEST_NUM_ARP_FRAMES:
+ {
+ const u8_t fake_arp[6] = { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xab };
+ const u8_t ipproto[] = { 0x08, 0x00 };
+ const u8_t bootp_start[] = { 0x01, 0x01, 0x06, 0x00}; /* bootp request, eth, hwaddr len 6, 0 hops */
+ const u8_t ipaddrs[] = { 0x00, 0x4f, 0x8a, 0x33, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ const u8_t dhcp_request_opt[] = { 0x35, 0x01, 0x03 };
+
+ check_pkt(p, 0, fake_arp, 6); /* eth level dest: broadcast */
+ check_pkt(p, 6, netif->hwaddr, 6); /* eth level src: unit mac */
+
+ check_pkt(p, 12, ipproto, sizeof(ipproto)); /* eth level proto: ip */
+
+ check_pkt(p, 42, bootp_start, sizeof(bootp_start));
+
+ check_pkt(p, 53, ipaddrs, sizeof(ipaddrs));
+
+ check_pkt(p, 70, netif->hwaddr, 6); /* mac addr inside bootp */
+
+ check_pkt(p, 278, magic_cookie, sizeof(magic_cookie));
+
+ /* Check dhcp message type, can be at different positions */
+ check_pkt_fuzzy(p, 282, dhcp_request_opt, sizeof(dhcp_request_opt));
+ break;
+ }
+ default:
+ fail();
+ break;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return ERR_OK;
+}
+
+/*
+ * Test basic happy flow DHCP session.
+ * Validate that xid is checked.
+ */
+START_TEST(test_dhcp)
+{
+ ip4_addr_t addr;
+ ip4_addr_t netmask;
+ ip4_addr_t gw;
+ int i;
+ u32_t xid;
+ LWIP_UNUSED_ARG(_i);
+
+ tcase = TEST_LWIP_DHCP;
+ setdebug(0);
+
+ IP4_ADDR(&addr, 0, 0, 0, 0);
+ IP4_ADDR(&netmask, 0, 0, 0, 0);
+ IP4_ADDR(&gw, 0, 0, 0, 0);
+
+ netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input);
+ netif_set_link_up(&net_test);
+ netif_set_up(&net_test);
+
+ dhcp_start(&net_test);
+
+ fail_unless(txpacket == 1); /* DHCP discover sent */
+ xid = netif_dhcp_data(&net_test)->xid; /* Write bad xid, not using htonl! */
+ memcpy(&dhcp_offer[46], &xid, 4);
+ send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer));
+
+ /* IP addresses should be zero */
+ fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t)));
+
+ fail_unless(txpacket == 1, "TX %d packets, expected 1", txpacket); /* Nothing more sent */
+ xid = htonl(netif_dhcp_data(&net_test)->xid);
+ memcpy(&dhcp_offer[46], &xid, 4); /* insert correct transaction id */
+ send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer));
+
+ fail_unless(txpacket == 2, "TX %d packets, expected 2", txpacket); /* DHCP request sent */
+ xid = netif_dhcp_data(&net_test)->xid; /* Write bad xid, not using htonl! */
+ memcpy(&dhcp_ack[46], &xid, 4);
+ send_pkt(&net_test, dhcp_ack, sizeof(dhcp_ack));
+
+ fail_unless(txpacket == 2, "TX %d packets, still expected 2", txpacket); /* No more sent */
+ xid = htonl(netif_dhcp_data(&net_test)->xid); /* xid updated */
+ memcpy(&dhcp_ack[46], &xid, 4); /* insert transaction id */
+ send_pkt(&net_test, dhcp_ack, sizeof(dhcp_ack));
+
+ fail_unless(txpacket == 2);
+
+ for (i = 0; i < 200; i++) {
+ tick_lwip();
+ }
+ fail_unless(txpacket == (2 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (2 + DHCP_TEST_NUM_ARP_FRAMES));
+
+ /* Interface up */
+ fail_unless(netif_is_up(&net_test));
+
+ /* Now it should have taken the IP */
+ IP4_ADDR(&addr, 195, 170, 189, 200);
+ IP4_ADDR(&netmask, 255, 255, 255, 0);
+ IP4_ADDR(&gw, 195, 170, 189, 171);
+ fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t)));
+
+ tcase = TEST_NONE;
+ dhcp_stop(&net_test);
+ dhcp_cleanup(&net_test);
+ netif_remove(&net_test);
+}
+END_TEST
+
+/*
+ * Test that IP address is not taken and NAK is sent if someone
+ * replies to ARP requests for the offered address.
+ */
+START_TEST(test_dhcp_nak)
+{
+ ip4_addr_t addr;
+ ip4_addr_t netmask;
+ ip4_addr_t gw;
+ u32_t xid;
+ LWIP_UNUSED_ARG(_i);
+
+ tcase = TEST_LWIP_DHCP;
+ setdebug(0);
+
+ IP4_ADDR(&addr, 0, 0, 0, 0);
+ IP4_ADDR(&netmask, 0, 0, 0, 0);
+ IP4_ADDR(&gw, 0, 0, 0, 0);
+
+ netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input);
+ netif_set_link_up(&net_test);
+ netif_set_up(&net_test);
+
+ dhcp_start(&net_test);
+
+ fail_unless(txpacket == 1); /* DHCP discover sent */
+ xid = netif_dhcp_data(&net_test)->xid; /* Write bad xid, not using htonl! */
+ memcpy(&dhcp_offer[46], &xid, 4);
+ send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer));
+
+ /* IP addresses should be zero */
+ fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t)));
+
+ fail_unless(txpacket == 1); /* Nothing more sent */
+ xid = htonl(netif_dhcp_data(&net_test)->xid);
+ memcpy(&dhcp_offer[46], &xid, 4); /* insert correct transaction id */
+ send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer));
+
+ fail_unless(txpacket == 2); /* DHCP request sent */
+ xid = netif_dhcp_data(&net_test)->xid; /* Write bad xid, not using htonl! */
+ memcpy(&dhcp_ack[46], &xid, 4);
+ send_pkt(&net_test, dhcp_ack, sizeof(dhcp_ack));
+
+ fail_unless(txpacket == 2); /* No more sent */
+ xid = htonl(netif_dhcp_data(&net_test)->xid); /* xid updated */
+ memcpy(&dhcp_ack[46], &xid, 4); /* insert transaction id */
+ send_pkt(&net_test, dhcp_ack, sizeof(dhcp_ack));
+
+ fail_unless(txpacket == 2); /* ARP request sent */
+
+ while (txpacket == 2) {
+ tick_lwip();
+ }
+ fail_unless(txpacket == 3);
+
+ tcase = TEST_LWIP_DHCP_NAK; /* Switch testcase */
+
+ /* Send arp reply, mark offered IP as taken */
+ send_pkt(&net_test, arpreply, sizeof(arpreply));
+
+ fail_unless(txpacket == 4); /* DHCP nak sent */
+
+ tcase = TEST_NONE;
+ dhcp_stop(&net_test);
+ dhcp_cleanup(&net_test);
+ netif_remove(&net_test);
+}
+END_TEST
+
+/*
+ * Test case based on captured data where
+ * replies are sent from a different IP than the
+ * one the client unicasted to.
+ */
+START_TEST(test_dhcp_relayed)
+{
+ u8_t relay_offer[] = {
+ 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d,
+ 0x00, 0x22, 0x93, 0x5a, 0xf7, 0x60,
+ 0x08, 0x00, 0x45, 0x00,
+ 0x01, 0x38, 0xfd, 0x53, 0x00, 0x00, 0x40, 0x11,
+ 0x78, 0x46, 0x4f, 0x8a, 0x32, 0x02, 0x4f, 0x8a,
+ 0x33, 0x05, 0x00, 0x43, 0x00, 0x44, 0x01, 0x24,
+ 0x00, 0x00, 0x02, 0x01, 0x06, 0x00, 0x51, 0x35,
+ 0xb6, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x4f, 0x8a, 0x33, 0x05, 0x00, 0x00,
+ 0x00, 0x00, 0x0a, 0xb5, 0x04, 0x01, 0x00, 0x23,
+ 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82,
+ 0x53, 0x63, 0x01, 0x04, 0xff, 0xff, 0xfe, 0x00,
+ 0x03, 0x04, 0x4f, 0x8a, 0x32, 0x01, 0x06, 0x08,
+ 0x4f, 0x8a, 0x00, 0xb4, 0x55, 0x08, 0x1f, 0xd1,
+ 0x1c, 0x04, 0x4f, 0x8a, 0x33, 0xff, 0x33, 0x04,
+ 0x00, 0x00, 0x54, 0x49, 0x35, 0x01, 0x02, 0x36,
+ 0x04, 0x0a, 0xb5, 0x04, 0x01, 0xff
+ };
+
+ u8_t relay_ack1[] = {
+ 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x22,
+ 0x93, 0x5a, 0xf7, 0x60, 0x08, 0x00, 0x45, 0x00,
+ 0x01, 0x38, 0xfd, 0x55, 0x00, 0x00, 0x40, 0x11,
+ 0x78, 0x44, 0x4f, 0x8a, 0x32, 0x02, 0x4f, 0x8a,
+ 0x33, 0x05, 0x00, 0x43, 0x00, 0x44, 0x01, 0x24,
+ 0x00, 0x00, 0x02, 0x01, 0x06, 0x00, 0x51, 0x35,
+ 0xb6, 0xa1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x4f, 0x8a, 0x33, 0x05, 0x00, 0x00,
+ 0x00, 0x00, 0x0a, 0xb5, 0x04, 0x01, 0x00, 0x23,
+ 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82,
+ 0x53, 0x63, 0x01, 0x04, 0xff, 0xff, 0xfe, 0x00,
+ 0x03, 0x04, 0x4f, 0x8a, 0x32, 0x01, 0x06, 0x08,
+ 0x4f, 0x8a, 0x00, 0xb4, 0x55, 0x08, 0x1f, 0xd1,
+ 0x1c, 0x04, 0x4f, 0x8a, 0x33, 0xff, 0x33, 0x04,
+ 0x00, 0x00, 0x54, 0x49, 0x35, 0x01, 0x05, 0x36,
+ 0x04, 0x0a, 0xb5, 0x04, 0x01, 0xff
+ };
+
+ u8_t relay_ack2[] = {
+ 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d,
+ 0x00, 0x22, 0x93, 0x5a, 0xf7, 0x60,
+ 0x08, 0x00, 0x45, 0x00,
+ 0x01, 0x38, 0xfa, 0x18, 0x00, 0x00, 0x40, 0x11,
+ 0x7b, 0x81, 0x4f, 0x8a, 0x32, 0x02, 0x4f, 0x8a,
+ 0x33, 0x05, 0x00, 0x43, 0x00, 0x44, 0x01, 0x24,
+ 0x00, 0x00, 0x02, 0x01, 0x06, 0x00, 0x49, 0x8b,
+ 0x6e, 0xab, 0x00, 0x00, 0x00, 0x00, 0x4f, 0x8a,
+ 0x33, 0x05, 0x4f, 0x8a, 0x33, 0x05, 0x00, 0x00,
+ 0x00, 0x00, 0x0a, 0xb5, 0x04, 0x01, 0x00, 0x23,
+ 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82,
+ 0x53, 0x63, 0x01, 0x04, 0xff, 0xff, 0xfe, 0x00,
+ 0x03, 0x04, 0x4f, 0x8a, 0x32, 0x01, 0x06, 0x08,
+ 0x4f, 0x8a, 0x00, 0xb4, 0x55, 0x08, 0x1f, 0xd1,
+ 0x1c, 0x04, 0x4f, 0x8a, 0x33, 0xff, 0x33, 0x04,
+ 0x00, 0x00, 0x54, 0x60, 0x35, 0x01, 0x05, 0x36,
+ 0x04, 0x0a, 0xb5, 0x04, 0x01, 0xff };
+
+ const u8_t arp_resp[] = {
+ 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, /* DEST */
+ 0x00, 0x22, 0x93, 0x5a, 0xf7, 0x60, /* SRC */
+ 0x08, 0x06, /* Type: ARP */
+ 0x00, 0x01, /* HW: Ethernet */
+ 0x08, 0x00, /* PROTO: IP */
+ 0x06, /* HW size */
+ 0x04, /* PROTO size */
+ 0x00, 0x02, /* OPCODE: Reply */
+
+ 0x12, 0x34, 0x56, 0x78, 0x9a, 0xab, /* Target MAC */
+ 0x4f, 0x8a, 0x32, 0x01, /* Target IP */
+
+ 0x00, 0x23, 0xc1, 0x00, 0x06, 0x50, /* src mac */
+ 0x4f, 0x8a, 0x33, 0x05, /* src ip */
+
+ /* Padding follows.. */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00 };
+
+ ip4_addr_t addr;
+ ip4_addr_t netmask;
+ ip4_addr_t gw;
+ int i;
+ u32_t xid;
+ LWIP_UNUSED_ARG(_i);
+
+ tcase = TEST_LWIP_DHCP_RELAY;
+ setdebug(0);
+
+ IP4_ADDR(&addr, 0, 0, 0, 0);
+ IP4_ADDR(&netmask, 0, 0, 0, 0);
+ IP4_ADDR(&gw, 0, 0, 0, 0);
+
+ netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input);
+ netif_set_link_up(&net_test);
+ netif_set_up(&net_test);
+
+ dhcp_start(&net_test);
+
+ fail_unless(txpacket == 1); /* DHCP discover sent */
+
+ /* IP addresses should be zero */
+ fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t)));
+
+ fail_unless(txpacket == 1); /* Nothing more sent */
+ xid = htonl(netif_dhcp_data(&net_test)->xid);
+ memcpy(&relay_offer[46], &xid, 4); /* insert correct transaction id */
+ send_pkt(&net_test, relay_offer, sizeof(relay_offer));
+
+ /* request sent? */
+ fail_unless(txpacket == 2, "txpkt = %d, should be 2", txpacket);
+ xid = htonl(netif_dhcp_data(&net_test)->xid); /* xid updated */
+ memcpy(&relay_ack1[46], &xid, 4); /* insert transaction id */
+ send_pkt(&net_test, relay_ack1, sizeof(relay_ack1));
+
+ for (i = 0; i < 200; i++) {
+ tick_lwip();
+ }
+ fail_unless(txpacket == (2 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (2 + DHCP_TEST_NUM_ARP_FRAMES));
+
+ /* Interface up */
+ fail_unless(netif_is_up(&net_test));
+
+ /* Now it should have taken the IP */
+ IP4_ADDR(&addr, 79, 138, 51, 5);
+ IP4_ADDR(&netmask, 255, 255, 254, 0);
+ IP4_ADDR(&gw, 79, 138, 50, 1);
+ fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t)));
+
+ fail_unless(txpacket == (2 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (2 + DHCP_TEST_NUM_ARP_FRAMES));
+
+ for (i = 0; i < 108000 - 25; i++) {
+ tick_lwip();
+ }
+
+ fail_unless(netif_is_up(&net_test));
+ fail_unless(txpacket == (3 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (3 + DHCP_TEST_NUM_ARP_FRAMES));
+
+ /* We need to send arp response here.. */
+
+ send_pkt(&net_test, arp_resp, sizeof(arp_resp));
+
+ fail_unless(txpacket == (4 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (4 + DHCP_TEST_NUM_ARP_FRAMES));
+ fail_unless(netif_is_up(&net_test));
+
+ xid = htonl(netif_dhcp_data(&net_test)->xid); /* xid updated */
+ memcpy(&relay_ack2[46], &xid, 4); /* insert transaction id */
+ send_pkt(&net_test, relay_ack2, sizeof(relay_ack2));
+
+ for (i = 0; i < 100000; i++) {
+ tick_lwip();
+ }
+
+ fail_unless(txpacket == (4 + DHCP_TEST_NUM_ARP_FRAMES), "TX %d packets, expected %d", txpacket, (5 + DHCP_TEST_NUM_ARP_FRAMES));
+
+ tcase = TEST_NONE;
+ dhcp_stop(&net_test);
+ dhcp_cleanup(&net_test);
+ netif_remove(&net_test);
+
+}
+END_TEST
+
+START_TEST(test_dhcp_nak_no_endmarker)
+{
+ ip4_addr_t addr;
+ ip4_addr_t netmask;
+ ip4_addr_t gw;
+
+ u8_t dhcp_nack_no_endmarker[] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x54, 0x75,
+ 0xd0, 0x26, 0xd0, 0x0d, 0x08, 0x00, 0x45, 0x00,
+ 0x01, 0x15, 0x38, 0x86, 0x00, 0x00, 0xff, 0x11,
+ 0xc0, 0xa8, 0xc0, 0xa8, 0x01, 0x01, 0xff, 0xff,
+ 0xff, 0xff, 0x00, 0x43, 0x00, 0x44, 0x01, 0x01,
+ 0x00, 0x00, 0x02, 0x01, 0x06, 0x00, 0x7a, 0xcb,
+ 0xba, 0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23,
+ 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82,
+ 0x53, 0x63, 0x35, 0x01, 0x06, 0x36, 0x04, 0xc0,
+ 0xa8, 0x01, 0x01, 0x31, 0xef, 0xad, 0x72, 0x31,
+ 0x43, 0x4e, 0x44, 0x30, 0x32, 0x35, 0x30, 0x43,
+ 0x52, 0x47, 0x44, 0x38, 0x35, 0x36, 0x3c, 0x08,
+ 0x4d, 0x53, 0x46, 0x54, 0x20, 0x35, 0x2e, 0x30,
+ 0x37, 0x0d, 0x01, 0x0f, 0x03, 0x06, 0x2c, 0x2e,
+ 0x2f, 0x1f, 0x21, 0x79, 0xf9, 0x2b, 0xfc, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe2, 0x71,
+ 0xf3, 0x5b, 0xe2, 0x71, 0x2e, 0x01, 0x08, 0x03,
+ 0x04, 0xc0, 0xa8, 0x01, 0x01, 0xff, 0xeb, 0x1e,
+ 0x44, 0xec, 0xeb, 0x1e, 0x30, 0x37, 0x0c, 0x01,
+ 0x0f, 0x03, 0x06, 0x2c, 0x2e, 0x2f, 0x1f, 0x21,
+ 0x79, 0xf9, 0x2b, 0xff, 0x25, 0xc0, 0x09, 0xd6,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
+ u32_t xid;
+ struct dhcp* dhcp;
+ u8_t tries;
+ u16_t request_timeout;
+ LWIP_UNUSED_ARG(_i);
+
+ tcase = TEST_LWIP_DHCP_NAK_NO_ENDMARKER;
+ setdebug(0);
+
+ IP4_ADDR(&addr, 0, 0, 0, 0);
+ IP4_ADDR(&netmask, 0, 0, 0, 0);
+ IP4_ADDR(&gw, 0, 0, 0, 0);
+
+ netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input);
+ netif_set_link_up(&net_test);
+ netif_set_up(&net_test);
+
+ dhcp_start(&net_test);
+ dhcp = netif_dhcp_data(&net_test);
+
+ fail_unless(txpacket == 1); /* DHCP discover sent */
+ xid = dhcp->xid; /* Write bad xid, not using htonl! */
+ memcpy(&dhcp_offer[46], &xid, 4);
+ send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer));
+
+ /* IP addresses should be zero */
+ fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t)));
+
+ fail_unless(txpacket == 1); /* Nothing more sent */
+ xid = htonl(dhcp->xid);
+ memcpy(&dhcp_offer[46], &xid, 4); /* insert correct transaction id */
+ send_pkt(&net_test, dhcp_offer, sizeof(dhcp_offer));
+
+ fail_unless(dhcp->state == DHCP_STATE_REQUESTING);
+
+ fail_unless(txpacket == 2); /* No more sent */
+ xid = htonl(dhcp->xid); /* xid updated */
+ memcpy(&dhcp_nack_no_endmarker[46], &xid, 4); /* insert transaction id */
+ tries = dhcp->tries;
+ request_timeout = dhcp->request_timeout;
+ send_pkt(&net_test, dhcp_nack_no_endmarker, sizeof(dhcp_nack_no_endmarker));
+
+ /* NAK should be ignored */
+ fail_unless(dhcp->state == DHCP_STATE_REQUESTING);
+ fail_unless(txpacket == 2); /* No more sent */
+ fail_unless(xid == htonl(dhcp->xid));
+ fail_unless(tries == dhcp->tries);
+ fail_unless(request_timeout == dhcp->request_timeout);
+
+ tcase = TEST_NONE;
+ dhcp_stop(&net_test);
+ dhcp_cleanup(&net_test);
+ netif_remove(&net_test);
+}
+END_TEST
+
+START_TEST(test_dhcp_invalid_overload)
+{
+ u8_t dhcp_offer_invalid_overload[] = {
+ 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, /* To unit */
+ 0x00, 0x0F, 0xEE, 0x30, 0xAB, 0x22, /* From Remote host */
+ 0x08, 0x00, /* Protocol: IP */
+ 0x45, 0x10, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00, 0x80, 0x11, 0x36, 0xcc, 0xc3, 0xaa, 0xbd, 0xab, 0xc3, 0xaa, 0xbd, 0xc8, /* IP header */
+ 0x00, 0x43, 0x00, 0x44, 0x01, 0x34, 0x00, 0x00, /* UDP header */
+
+ 0x02, /* Type == Boot reply */
+ 0x01, 0x06, /* Hw Ethernet, 6 bytes addrlen */
+ 0x00, /* 0 hops */
+ 0xAA, 0xAA, 0xAA, 0xAA, /* Transaction id, will be overwritten */
+ 0x00, 0x00, /* 0 seconds elapsed */
+ 0x00, 0x00, /* Flags (unicast) */
+ 0x00, 0x00, 0x00, 0x00, /* Client ip */
+ 0xc3, 0xaa, 0xbd, 0xc8, /* Your IP */
+ 0xc3, 0xaa, 0xbd, 0xab, /* DHCP server ip */
+ 0x00, 0x00, 0x00, 0x00, /* relay agent */
+ 0x00, 0x23, 0xc1, 0xde, 0xd0, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* MAC addr + padding */
+
+ /* Empty server name */
+ 0x34, 0x01, 0x02, 0xff, /* Overload: SNAME + END */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* Empty boot file name */
+ 0x34, 0x01, 0x01, 0xff, /* Overload FILE + END */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+
+ 0x63, 0x82, 0x53, 0x63, /* Magic cookie */
+ 0x35, 0x01, 0x02, /* Message type: Offer */
+ 0x36, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* Server identifier (IP) */
+ 0x33, 0x04, 0x00, 0x00, 0x00, 0x78, /* Lease time 2 minutes */
+ 0x03, 0x04, 0xc3, 0xaa, 0xbd, 0xab, /* Router IP */
+ 0x01, 0x04, 0xff, 0xff, 0xff, 0x00, /* Subnet mask */
+ 0x34, 0x01, 0x03, /* Overload: FILE + SNAME */
+ 0xff, /* End option */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Padding */
+ };
+ ip4_addr_t addr;
+ ip4_addr_t netmask;
+ ip4_addr_t gw;
+ u32_t xid;
+ LWIP_UNUSED_ARG(_i);
+
+ tcase = TEST_LWIP_DHCP_INVALID_OVERLOAD;
+ setdebug(0);
+
+ IP4_ADDR(&addr, 0, 0, 0, 0);
+ IP4_ADDR(&netmask, 0, 0, 0, 0);
+ IP4_ADDR(&gw, 0, 0, 0, 0);
+
+ netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input);
+ netif_set_link_up(&net_test);
+ netif_set_up(&net_test);
+
+ dhcp_start(&net_test);
+
+ fail_unless(txpacket == 1); /* DHCP discover sent */
+ xid = htonl(netif_dhcp_data(&net_test)->xid);
+ memcpy(&dhcp_offer_invalid_overload[46], &xid, 4); /* insert correct transaction id */
+ dhcp_offer_invalid_overload[311] = 3;
+ send_pkt(&net_test, dhcp_offer_invalid_overload, sizeof(dhcp_offer_invalid_overload));
+ /* IP addresses should be zero */
+ fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t)));
+ fail_unless(txpacket == 1); /* Nothing more sent */
+
+ dhcp_offer_invalid_overload[311] = 2;
+ send_pkt(&net_test, dhcp_offer_invalid_overload, sizeof(dhcp_offer_invalid_overload));
+ /* IP addresses should be zero */
+ fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t)));
+ fail_unless(txpacket == 1); /* Nothing more sent */
+
+ dhcp_offer_invalid_overload[311] = 1;
+ send_pkt(&net_test, dhcp_offer_invalid_overload, sizeof(dhcp_offer_invalid_overload));
+ /* IP addresses should be zero */
+ fail_if(memcmp(&addr, &net_test.ip_addr, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&netmask, &net_test.netmask, sizeof(ip4_addr_t)));
+ fail_if(memcmp(&gw, &net_test.gw, sizeof(ip4_addr_t)));
+ fail_unless(txpacket == 1); /* Nothing more sent */
+
+ dhcp_offer_invalid_overload[311] = 0;
+ send_pkt(&net_test, dhcp_offer_invalid_overload, sizeof(dhcp_offer));
+
+ fail_unless(netif_dhcp_data(&net_test)->state == DHCP_STATE_REQUESTING);
+
+ fail_unless(txpacket == 2); /* No more sent */
+ xid = htonl(netif_dhcp_data(&net_test)->xid); /* xid updated */
+
+ tcase = TEST_NONE;
+ dhcp_stop(&net_test);
+ dhcp_cleanup(&net_test);
+ netif_remove(&net_test);
+}
+END_TEST
+
+/** Create the suite including all tests for this module */
+Suite *
+dhcp_suite(void)
+{
+ testfunc tests[] = {
+ TESTFUNC(test_dhcp),
+ TESTFUNC(test_dhcp_nak),
+ TESTFUNC(test_dhcp_relayed),
+ TESTFUNC(test_dhcp_nak_no_endmarker),
+ TESTFUNC(test_dhcp_invalid_overload)
+ };
+ return create_suite("DHCP", tests, sizeof(tests)/sizeof(testfunc), dhcp_setup, dhcp_teardown);
+}
generated by cgit v1.2.3 (git 2.0.4) at 2025-09-22 16:55:22 +0000