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-rw-r--r--test/unit/etharp/test_etharp.c273
1 files changed, 273 insertions, 0 deletions
diff --git a/test/unit/etharp/test_etharp.c b/test/unit/etharp/test_etharp.c
new file mode 100644
index 00000000000..aeaacb20015
--- /dev/null
+++ b/test/unit/etharp/test_etharp.c
@@ -0,0 +1,273 @@
+#include "test_etharp.h"
+
+#include "lwip/udp.h"
+#include "lwip/etharp.h"
+#include "lwip/inet.h"
+#include "netif/ethernet.h"
+#include "lwip/stats.h"
+#include "lwip/prot/iana.h"
+
+#if !LWIP_STATS || !UDP_STATS || !MEMP_STATS || !ETHARP_STATS
+#error "This tests needs UDP-, MEMP- and ETHARP-statistics enabled"
+#endif
+#if !ETHARP_SUPPORT_STATIC_ENTRIES
+#error "This test needs ETHARP_SUPPORT_STATIC_ENTRIES enabled"
+#endif
+
+static struct netif test_netif;
+static ip4_addr_t test_ipaddr, test_netmask, test_gw;
+struct eth_addr test_ethaddr = {{1,1,1,1,1,1}};
+struct eth_addr test_ethaddr2 = {{1,1,1,1,1,2}};
+struct eth_addr test_ethaddr3 = {{1,1,1,1,1,3}};
+struct eth_addr test_ethaddr4 = {{1,1,1,1,1,4}};
+static int linkoutput_ctr;
+
+/* Helper functions */
+static void
+etharp_remove_all(void)
+{
+ int i;
+ /* call etharp_tmr often enough to have all entries cleaned */
+ for(i = 0; i < 0xff; i++) {
+ etharp_tmr();
+ }
+}
+
+static err_t
+default_netif_linkoutput(struct netif *netif, struct pbuf *p)
+{
+ fail_unless(netif == &test_netif);
+ fail_unless(p != NULL);
+ linkoutput_ctr++;
+ return ERR_OK;
+}
+
+static err_t
+default_netif_init(struct netif *netif)
+{
+ fail_unless(netif != NULL);
+ netif->linkoutput = default_netif_linkoutput;
+ netif->output = etharp_output;
+ netif->mtu = 1500;
+ netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
+ netif->hwaddr_len = ETHARP_HWADDR_LEN;
+ return ERR_OK;
+}
+
+static void
+default_netif_add(void)
+{
+ IP4_ADDR(&test_gw, 192,168,0,1);
+ IP4_ADDR(&test_ipaddr, 192,168,0,1);
+ IP4_ADDR(&test_netmask, 255,255,0,0);
+
+ fail_unless(netif_default == NULL);
+ netif_set_default(netif_add(&test_netif, &test_ipaddr, &test_netmask,
+ &test_gw, NULL, default_netif_init, NULL));
+ netif_set_up(&test_netif);
+}
+
+static void
+default_netif_remove(void)
+{
+ fail_unless(netif_default == &test_netif);
+ netif_remove(&test_netif);
+}
+
+static void
+create_arp_response(ip4_addr_t *adr)
+{
+ int k;
+ struct eth_hdr *ethhdr;
+ struct etharp_hdr *etharphdr;
+ struct pbuf *p = pbuf_alloc(PBUF_RAW, sizeof(struct eth_hdr) + sizeof(struct etharp_hdr), PBUF_RAM);
+ if(p == NULL) {
+ FAIL_RET();
+ }
+ ethhdr = (struct eth_hdr*)p->payload;
+ etharphdr = (struct etharp_hdr*)(ethhdr + 1);
+
+ ethhdr->dest = test_ethaddr;
+ ethhdr->src = test_ethaddr2;
+ ethhdr->type = htons(ETHTYPE_ARP);
+
+ etharphdr->hwtype = htons(LWIP_IANA_HWTYPE_ETHERNET);
+ etharphdr->proto = htons(ETHTYPE_IP);
+ etharphdr->hwlen = ETHARP_HWADDR_LEN;
+ etharphdr->protolen = sizeof(ip4_addr_t);
+ etharphdr->opcode = htons(ARP_REPLY);
+
+ SMEMCPY(&etharphdr->sipaddr, adr, sizeof(ip4_addr_t));
+ SMEMCPY(&etharphdr->dipaddr, &test_ipaddr, sizeof(ip4_addr_t));
+
+ k = 6;
+ while(k > 0) {
+ k--;
+ /* Write the ARP MAC-Addresses */
+ etharphdr->shwaddr.addr[k] = test_ethaddr2.addr[k];
+ etharphdr->dhwaddr.addr[k] = test_ethaddr.addr[k];
+ /* Write the Ethernet MAC-Addresses */
+ ethhdr->dest.addr[k] = test_ethaddr.addr[k];
+ ethhdr->src.addr[k] = test_ethaddr2.addr[k];
+ }
+
+ ethernet_input(p, &test_netif);
+}
+
+/* Setups/teardown functions */
+
+static void
+etharp_setup(void)
+{
+ etharp_remove_all();
+ default_netif_add();
+ lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT));
+}
+
+static void
+etharp_teardown(void)
+{
+ etharp_remove_all();
+ default_netif_remove();
+ lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT));
+}
+
+
+/* Test functions */
+
+START_TEST(test_etharp_table)
+{
+#if ETHARP_SUPPORT_STATIC_ENTRIES
+ err_t err;
+#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
+ ssize_t idx;
+ const ip4_addr_t *unused_ipaddr;
+ struct eth_addr *unused_ethaddr;
+ struct udp_pcb* pcb;
+ LWIP_UNUSED_ARG(_i);
+
+ if (netif_default != &test_netif) {
+ fail("This test needs a default netif");
+ }
+
+ linkoutput_ctr = 0;
+
+ pcb = udp_new();
+ fail_unless(pcb != NULL);
+ if (pcb != NULL) {
+ ip4_addr_t adrs[ARP_TABLE_SIZE + 2];
+ int i;
+ for(i = 0; i < ARP_TABLE_SIZE + 2; i++) {
+ IP4_ADDR(&adrs[i], 192,168,0,i+2);
+ }
+ /* fill ARP-table with dynamic entries */
+ for(i = 0; i < ARP_TABLE_SIZE; i++) {
+ struct pbuf *p = pbuf_alloc(PBUF_TRANSPORT, 10, PBUF_RAM);
+ fail_unless(p != NULL);
+ if (p != NULL) {
+ err_t err2;
+ ip_addr_t dst;
+ ip_addr_copy_from_ip4(dst, adrs[i]);
+ err2 = udp_sendto(pcb, p, &dst, 123);
+ fail_unless(err2 == ERR_OK);
+ /* etharp request sent? */
+ fail_unless(linkoutput_ctr == (2*i) + 1);
+ pbuf_free(p);
+
+ /* create an ARP response */
+ create_arp_response(&adrs[i]);
+ /* queued UDP packet sent? */
+ fail_unless(linkoutput_ctr == (2*i) + 2);
+
+ idx = etharp_find_addr(NULL, &adrs[i], &unused_ethaddr, &unused_ipaddr);
+ fail_unless(idx == i);
+ etharp_tmr();
+ }
+ }
+ linkoutput_ctr = 0;
+#if ETHARP_SUPPORT_STATIC_ENTRIES
+ /* create one static entry */
+ err = etharp_add_static_entry(&adrs[ARP_TABLE_SIZE], &test_ethaddr3);
+ fail_unless(err == ERR_OK);
+ idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE], &unused_ethaddr, &unused_ipaddr);
+ fail_unless(idx == 0);
+ fail_unless(linkoutput_ctr == 0);
+#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
+
+ linkoutput_ctr = 0;
+ /* fill ARP-table with dynamic entries */
+ for(i = 0; i < ARP_TABLE_SIZE; i++) {
+ struct pbuf *p = pbuf_alloc(PBUF_TRANSPORT, 10, PBUF_RAM);
+ fail_unless(p != NULL);
+ if (p != NULL) {
+ err_t err2;
+ ip_addr_t dst;
+ ip_addr_copy_from_ip4(dst, adrs[i]);
+ err2 = udp_sendto(pcb, p, &dst, 123);
+ fail_unless(err2 == ERR_OK);
+ /* etharp request sent? */
+ fail_unless(linkoutput_ctr == (2*i) + 1);
+ pbuf_free(p);
+
+ /* create an ARP response */
+ create_arp_response(&adrs[i]);
+ /* queued UDP packet sent? */
+ fail_unless(linkoutput_ctr == (2*i) + 2);
+
+ idx = etharp_find_addr(NULL, &adrs[i], &unused_ethaddr, &unused_ipaddr);
+ if (i < ARP_TABLE_SIZE - 1) {
+ fail_unless(idx == i+1);
+ } else {
+ /* the last entry must not overwrite the static entry! */
+ fail_unless(idx == 1);
+ }
+ etharp_tmr();
+ }
+ }
+#if ETHARP_SUPPORT_STATIC_ENTRIES
+ /* create a second static entry */
+ err = etharp_add_static_entry(&adrs[ARP_TABLE_SIZE+1], &test_ethaddr4);
+ fail_unless(err == ERR_OK);
+ idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE], &unused_ethaddr, &unused_ipaddr);
+ fail_unless(idx == 0);
+ idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE+1], &unused_ethaddr, &unused_ipaddr);
+ fail_unless(idx == 2);
+ /* and remove it again */
+ err = etharp_remove_static_entry(&adrs[ARP_TABLE_SIZE+1]);
+ fail_unless(err == ERR_OK);
+ idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE], &unused_ethaddr, &unused_ipaddr);
+ fail_unless(idx == 0);
+ idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE+1], &unused_ethaddr, &unused_ipaddr);
+ fail_unless(idx == -1);
+#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
+
+ /* check that static entries don't time out */
+ etharp_remove_all();
+ idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE], &unused_ethaddr, &unused_ipaddr);
+ fail_unless(idx == 0);
+
+#if ETHARP_SUPPORT_STATIC_ENTRIES
+ /* remove the first static entry */
+ err = etharp_remove_static_entry(&adrs[ARP_TABLE_SIZE]);
+ fail_unless(err == ERR_OK);
+ idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE], &unused_ethaddr, &unused_ipaddr);
+ fail_unless(idx == -1);
+ idx = etharp_find_addr(NULL, &adrs[ARP_TABLE_SIZE+1], &unused_ethaddr, &unused_ipaddr);
+ fail_unless(idx == -1);
+#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
+
+ udp_remove(pcb);
+ }
+}
+END_TEST
+
+
+/** Create the suite including all tests for this module */
+Suite *
+etharp_suite(void)
+{
+ testfunc tests[] = {
+ TESTFUNC(test_etharp_table)
+ };
+ return create_suite("ETHARP", tests, sizeof(tests)/sizeof(testfunc), etharp_setup, etharp_teardown);
+}
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