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ip6: Add ipv6 fragmentation test

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Seems to work the same as ipv4, and that I was just confused by all the
loops when reading the code.
This commit is contained in:
Erik Ekman 2020-07-01 20:17:29 +02:00
parent 0bda621d3d
commit ec5f3a1563
1 changed files with 38 additions and 1 deletions
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39
test/unit/ip6/test_ip6.c
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@ -16,6 +16,7 @@
static struct netif test_netif6; static struct netif test_netif6;
static int linkoutput_ctr; static int linkoutput_ctr;
static int linkoutput_byte_ctr;
static err_t static err_t
default_netif_linkoutput(struct netif *netif, struct pbuf *p) default_netif_linkoutput(struct netif *netif, struct pbuf *p)
@ -23,6 +24,7 @@ default_netif_linkoutput(struct netif *netif, struct pbuf *p)
fail_unless(netif == &test_netif6); fail_unless(netif == &test_netif6);
fail_unless(p != NULL); fail_unless(p != NULL);
linkoutput_ctr++; linkoutput_ctr++;
linkoutput_byte_ctr += p->tot_len;
return ERR_OK; return ERR_OK;
} }
@ -390,6 +392,40 @@ START_TEST(test_ip6_frag_pbuf_len_assert)
} }
END_TEST END_TEST
static err_t direct_output(struct netif *netif, struct pbuf *p, const ip6_addr_t *addr) {
LWIP_UNUSED_ARG(addr);
return netif->linkoutput(netif, p);
}
START_TEST(test_ip6_frag)
{
ip_addr_t my_addr = IPADDR6_INIT_HOST(0x20010db8, 0x0, 0x0, 0x1);
ip_addr_t peer_addr = IPADDR6_INIT_HOST(0x20010db8, 0x0, 0x0, 0x4);
struct pbuf *data;
err_t err;
/* Configure and enable local address */
test_netif6.mtu = 1500;
netif_set_up(&test_netif6);
netif_ip6_addr_set(&test_netif6, 0, ip_2_ip6(&my_addr));
netif_ip6_addr_set_state(&test_netif6, 0, IP6_ADDR_VALID);
test_netif6.output_ip6 = direct_output;
/* Reset counters after multicast traffic */
linkoutput_ctr = 0;
linkoutput_byte_ctr = 0;
/* Verify that 8000 byte payload is split into six packets */
data = pbuf_alloc(PBUF_IP, 8000, PBUF_RAM);
fail_unless(data != NULL);
err = ip6_output_if_src(data, ip_2_ip6(&my_addr), ip_2_ip6(&peer_addr),
15, 0, IP_PROTO_UDP, &test_netif6);
fail_unless(err == ERR_OK);
fail_unless(linkoutput_ctr == 6);
fail_unless(linkoutput_byte_ctr == (8000 + (6 * (IP6_HLEN + IP6_FRAG_HLEN))));
pbuf_free(data);
}
END_TEST
/** Create the suite including all tests for this module */ /** Create the suite including all tests for this module */
Suite * Suite *
ip6_suite(void) ip6_suite(void)
@ -401,7 +437,8 @@ ip6_suite(void)
TESTFUNC(test_ip6_ntoa), TESTFUNC(test_ip6_ntoa),
TESTFUNC(test_ip6_lladdr), TESTFUNC(test_ip6_lladdr),
TESTFUNC(test_ip6_dest_unreachable_chained_pbuf), TESTFUNC(test_ip6_dest_unreachable_chained_pbuf),
TESTFUNC(test_ip6_frag_pbuf_len_assert) TESTFUNC(test_ip6_frag_pbuf_len_assert),
TESTFUNC(test_ip6_frag)
}; };
return create_suite("IPv6", tests, sizeof(tests)/sizeof(testfunc), ip6_setup, ip6_teardown); return create_suite("IPv6", tests, sizeof(tests)/sizeof(testfunc), ip6_setup, ip6_teardown);
} }