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ip6: Add test for fragmenting special packet
Reproduces bug #57374 (Found by Hiromasa Ito).
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@ -287,6 +287,43 @@ START_TEST(test_ip6_lladdr)
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}
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END_TEST
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/* Reproduces bug #57374 */
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START_TEST(test_ip6_frag_pbuf_len_assert)
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{
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ip_addr_t my_addr = IPADDR6_INIT_HOST(0x20010db8, 0x0, 0x0, 0x1);
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ip_addr_t peer_addr = IPADDR6_INIT_HOST(0x20010db8, 0x0, 0x0, 0x4);
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struct pbuf *payload, *hdr;
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err_t err;
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int i;
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/* Configure and enable local address */
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test_netif6.mtu = 1500;
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netif_set_up(&test_netif6);
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netif_ip6_addr_set(&test_netif6, 0, ip_2_ip6(&my_addr));
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netif_ip6_addr_set_state(&test_netif6, 0, IP6_ADDR_VALID);
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/* Create packet with lots of small pbufs around mtu limit */
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payload = pbuf_alloc(PBUF_RAW, 1400, PBUF_POOL);
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fail_unless(payload != NULL);
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for (i = 0; i < 16; i++) {
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struct pbuf *p = pbuf_alloc(PBUF_RAW, 32, PBUF_RAM);
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fail_unless(p != NULL);
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pbuf_cat(payload, p);
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}
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/* Prefix with header like UDP would */
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hdr = pbuf_alloc(PBUF_IP, 8, PBUF_RAM);
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fail_unless(hdr != NULL);
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pbuf_chain(hdr, payload);
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/* Send it and don't crash while fragmenting */
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err = ip6_output_if_src(hdr, ip_2_ip6(&my_addr), ip_2_ip6(&peer_addr), 15, 0, IP_PROTO_UDP, &test_netif6);
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fail_unless(err == ERR_OK);
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pbuf_free(hdr);
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pbuf_free(payload);
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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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ip6_suite(void)
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@ -296,7 +333,8 @@ ip6_suite(void)
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TESTFUNC(test_ip6_aton_ipv4mapped),
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TESTFUNC(test_ip6_ntoa_ipv4mapped),
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TESTFUNC(test_ip6_ntoa),
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TESTFUNC(test_ip6_lladdr)
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TESTFUNC(test_ip6_lladdr),
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TESTFUNC(test_ip6_frag_pbuf_len_assert)
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};
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return create_suite("IPv6", tests, sizeof(tests)/sizeof(testfunc), ip6_setup, ip6_teardown);
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}
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