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