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/* vim:ts=8:sts=8:sw=4:noai:noexpandtab
*
* unit tests for ip stack.
*
* Copyright (c) 2009-2010 Miru Limited.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <errno.h>
#include <inttypes.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <glib.h>
#include <check.h>
/* getsockopt(3SOCKET)
* level is the protocol number of the protocl that controls the option.
*/
#ifndef SOL_IP
# define SOL_IP IPPROTO_IP
#endif
#ifndef SOL_IPV6
# define SOL_IPV6 IPPROTO_IPV6
#endif
/* mock state */
size_t
pgm_transport_pkt_offset2 (
const bool can_fragment,
const bool use_pgmcc
)
{
return 0;
}
#define PGM_COMPILATION
#include "impl/sockaddr.h"
#include "impl/indextoaddr.h"
#include "impl/ip.h"
/* target:
* testing platform capability to loop send multicast packets to a listening
* receive socket.
*/
START_TEST (test_multicast_loop_pass_001)
{
struct sockaddr_in addr;
memset (&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr ("239.192.0.1");
int recv_sock = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
fail_if (-1 == recv_sock, "socket failed");
struct sockaddr_in recv_addr;
memcpy (&recv_addr, &addr, sizeof(addr));
recv_addr.sin_port = 7500;
fail_unless (0 == bind (recv_sock, (struct sockaddr*)&recv_addr, pgm_sockaddr_len ((struct sockaddr*)&recv_addr)), "bind failed");
struct group_req gr;
memset (&gr, 0, sizeof(gr));
((struct sockaddr*)&gr.gr_group)->sa_family = addr.sin_family;
((struct sockaddr_in*)&gr.gr_group)->sin_addr.s_addr = addr.sin_addr.s_addr;
fail_unless (0 == setsockopt (recv_sock, SOL_IP, MCAST_JOIN_GROUP, (const char*)&gr, sizeof(gr)), "setsockopt failed");
fail_unless (0 == pgm_sockaddr_multicast_loop (recv_sock, AF_INET, FALSE), "multicast_loop failed");
int send_sock = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
fail_if (-1 == send_sock, "socket failed");
struct sockaddr_in send_addr;
memcpy (&send_addr, &addr, sizeof(addr));
fail_unless (0 == bind (send_sock, (struct sockaddr*)&send_addr, pgm_sockaddr_len ((struct sockaddr*)&send_addr)), "bind failed");
struct sockaddr_in if_addr;
fail_unless (TRUE == pgm_if_indextoaddr (0, AF_INET, 0, (struct sockaddr*)&if_addr, NULL), "if_indextoaddr failed");
fail_unless (0 == pgm_sockaddr_multicast_if (send_sock, (struct sockaddr*)&if_addr, 0), "multicast_if failed");
fail_unless (0 == pgm_sockaddr_multicast_loop (send_sock, AF_INET, TRUE), "multicast_loop failed");
const char data[] = "apple pie";
addr.sin_port = 7500;
ssize_t bytes_sent = sendto (send_sock, data, sizeof(data), 0, (struct sockaddr*)&addr, pgm_sockaddr_len ((struct sockaddr*)&addr));
if (-1 == bytes_sent)
g_message ("sendto: %s", strerror (errno));
fail_unless (sizeof(data) == bytes_sent, "sendto underrun");
char recv_data[1024];
ssize_t bytes_read = recv (recv_sock, recv_data, sizeof(recv_data), MSG_DONTWAIT);
if (-1 == bytes_read)
g_message ("sendto: %s", strerror (errno));
fail_unless (sizeof(data) == bytes_read, "recv underrun");
fail_unless (0 == close (recv_sock), "close failed");
fail_unless (0 == close (send_sock), "close failed");
}
END_TEST
/* target:
* testing whether unicast bind accepts packets to multicast join on a
* different port.
*/
START_TEST (test_port_bind_pass_001)
{
struct sockaddr_in addr;
memset (&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr ("239.192.0.1");
int recv_sock = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
fail_if (-1 == recv_sock, "socket failed");
struct sockaddr_in recv_addr;
memcpy (&recv_addr, &addr, sizeof(addr));
recv_addr.sin_port = 3056;
fail_unless (0 == bind (recv_sock, (struct sockaddr*)&recv_addr, pgm_sockaddr_len ((struct sockaddr*)&recv_addr)), "bind failed");
struct group_req gr;
memset (&gr, 0, sizeof(gr));
((struct sockaddr*)&gr.gr_group)->sa_family = addr.sin_family;
((struct sockaddr_in*)&gr.gr_group)->sin_addr.s_addr = addr.sin_addr.s_addr;
((struct sockaddr_in*)&gr.gr_group)->sin_port = 3055;
fail_unless (0 == setsockopt (recv_sock, SOL_IP, MCAST_JOIN_GROUP, (const char*)&gr, sizeof(gr)), "setsockopt failed");
fail_unless (0 == pgm_sockaddr_multicast_loop (recv_sock, AF_INET, FALSE), "multicast_loop failed");
int send_sock = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
fail_if (-1 == send_sock, "socket failed");
struct sockaddr_in send_addr;
memcpy (&send_addr, &addr, sizeof(addr));
fail_unless (0 == bind (send_sock, (struct sockaddr*)&send_addr, pgm_sockaddr_len ((struct sockaddr*)&send_addr)), "bind failed");
struct sockaddr_in if_addr;
fail_unless (TRUE == pgm_if_indextoaddr (0, AF_INET, 0, (struct sockaddr*)&if_addr, NULL), "if_indextoaddr failed");
fail_unless (0 == pgm_sockaddr_multicast_if (send_sock, (struct sockaddr*)&if_addr, 0), "multicast_if failed");
fail_unless (0 == pgm_sockaddr_multicast_loop (send_sock, AF_INET, TRUE), "multicast_loop failed");
const char data[] = "apple pie";
addr.sin_port = 3056;
ssize_t bytes_sent = sendto (send_sock, data, sizeof(data), 0, (struct sockaddr*)&addr, pgm_sockaddr_len ((struct sockaddr*)&addr));
if (-1 == bytes_sent)
g_message ("sendto: %s", strerror (errno));
fail_unless (sizeof(data) == bytes_sent, "sendto underrun");
char recv_data[1024];
ssize_t bytes_read = recv (recv_sock, recv_data, sizeof(recv_data), MSG_DONTWAIT);
if (-1 == bytes_read)
g_message ("recv: %s", strerror (errno));
if (sizeof(data) != bytes_read)
g_message ("recv returned %d bytes expected %d.", bytes_read, sizeof(data));
fail_unless (sizeof(data) == bytes_read, "recv underrun");
fail_unless (0 == close (recv_sock), "close failed");
fail_unless (0 == close (send_sock), "close failed");
}
END_TEST
/* target:
* test setting hop limit, aka time-to-live.
*
* NB: whilst convenient, we cannot use SOCK_RAW & IPPROTO_UDP on Solaris 10
* as it crashes the IP stack.
*/
START_TEST (test_hop_limit_pass_001)
{
struct sockaddr_in addr;
memset (&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr ("239.192.0.1");
int recv_sock = socket (AF_INET, SOCK_RAW, 113);
fail_if (-1 == recv_sock, "socket failed");
struct sockaddr_in recv_addr;
memcpy (&recv_addr, &addr, sizeof(addr));
recv_addr.sin_port = 7500;
fail_unless (0 == bind (recv_sock, (struct sockaddr*)&recv_addr, pgm_sockaddr_len ((struct sockaddr*)&recv_addr)), "bind failed");
struct group_req gr;
memset (&gr, 0, sizeof(gr));
((struct sockaddr*)&gr.gr_group)->sa_family = addr.sin_family;
((struct sockaddr_in*)&gr.gr_group)->sin_addr.s_addr = addr.sin_addr.s_addr;
fail_unless (0 == setsockopt (recv_sock, SOL_IP, MCAST_JOIN_GROUP, (const char*)&gr, sizeof(gr)), "setsockopt failed");
fail_unless (0 == pgm_sockaddr_multicast_loop (recv_sock, AF_INET, FALSE), "multicast_loop failed");
fail_unless (0 == pgm_sockaddr_hdrincl (recv_sock, AF_INET, TRUE), "hdrincl failed");
int send_sock = socket (AF_INET, SOCK_RAW, 113);
fail_if (-1 == send_sock, "socket failed");
struct sockaddr_in send_addr;
memcpy (&send_addr, &addr, sizeof(addr));
fail_unless (0 == bind (send_sock, (struct sockaddr*)&send_addr, pgm_sockaddr_len ((struct sockaddr*)&send_addr)), "bind failed");
struct sockaddr_in if_addr;
fail_unless (TRUE == pgm_if_indextoaddr (0, AF_INET, 0, (struct sockaddr*)&if_addr, NULL), "if_indextoaddr failed");
fail_unless (0 == pgm_sockaddr_multicast_if (send_sock, (struct sockaddr*)&if_addr, 0), "multicast_if failed");
fail_unless (0 == pgm_sockaddr_multicast_loop (send_sock, AF_INET, TRUE), "multicast_loop failed");
fail_unless (0 == pgm_sockaddr_multicast_hops (send_sock, AF_INET, 16), "multicast_hops failed");
const char data[] = "apple pie";
addr.sin_port = 7500;
ssize_t bytes_sent = sendto (send_sock, data, sizeof(data), 0, (struct sockaddr*)&addr, pgm_sockaddr_len ((struct sockaddr*)&addr));
if (-1 == bytes_sent)
g_message ("sendto: %s", strerror (errno));
fail_unless (sizeof(data) == bytes_sent, "sendto underrun");
char recv_data[1024];
ssize_t bytes_read = recv (recv_sock, recv_data, sizeof(recv_data), MSG_DONTWAIT);
if (-1 == bytes_read)
g_message ("recv: %s", strerror (errno));
const size_t pkt_len = sizeof(struct pgm_ip) + sizeof(data);
if (pkt_len != bytes_read)
g_message ("recv returned %zd bytes expected %zu.", bytes_read, pkt_len);
fail_unless (pkt_len == bytes_read, "recv underrun");
const struct pgm_ip* iphdr = (void*)recv_data;
fail_unless (4 == iphdr->ip_v, "Incorrect IP version, found %u expecting 4.", iphdr->ip_v);
fail_unless (16 == iphdr->ip_ttl, "hop count mismatch, found %u expecting 16.", iphdr->ip_ttl);
fail_unless (0 == close (recv_sock), "close failed");
fail_unless (0 == close (send_sock), "close failed");
}
END_TEST
/* target:
* router alert.
*/
START_TEST (test_router_alert_pass_001)
{
struct sockaddr_in addr;
memset (&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr ("239.192.0.1");
int recv_sock = socket (AF_INET, SOCK_RAW, 113);
fail_if (-1 == recv_sock, "socket failed");
struct sockaddr_in recv_addr;
memcpy (&recv_addr, &addr, sizeof(addr));
recv_addr.sin_port = 7500;
fail_unless (0 == bind (recv_sock, (struct sockaddr*)&recv_addr, pgm_sockaddr_len ((struct sockaddr*)&recv_addr)), "bind failed");
struct group_req gr;
memset (&gr, 0, sizeof(gr));
((struct sockaddr*)&gr.gr_group)->sa_family = addr.sin_family;
((struct sockaddr_in*)&gr.gr_group)->sin_addr.s_addr = addr.sin_addr.s_addr;
fail_unless (0 == setsockopt (recv_sock, SOL_IP, MCAST_JOIN_GROUP, (const char*)&gr, sizeof(gr)), "setsockopt failed");
fail_unless (0 == pgm_sockaddr_multicast_loop (recv_sock, AF_INET, FALSE), "multicast_loop failed");
fail_unless (0 == pgm_sockaddr_hdrincl (recv_sock, AF_INET, TRUE), "hdrincl failed");
int send_sock = socket (AF_INET, SOCK_RAW, 113);
fail_if (-1 == send_sock, "socket failed");
struct sockaddr_in send_addr;
memcpy (&send_addr, &addr, sizeof(addr));
fail_unless (0 == bind (send_sock, (struct sockaddr*)&send_addr, pgm_sockaddr_len ((struct sockaddr*)&send_addr)), "bind failed");
struct sockaddr_in if_addr;
fail_unless (TRUE == pgm_if_indextoaddr (0, AF_INET, 0, (struct sockaddr*)&if_addr, NULL), "if_indextoaddr failed");
fail_unless (0 == pgm_sockaddr_multicast_if (send_sock, (struct sockaddr*)&if_addr, 0), "multicast_if failed");
fail_unless (0 == pgm_sockaddr_multicast_loop (send_sock, AF_INET, TRUE), "multicast_loop failed");
fail_unless (0 == pgm_sockaddr_router_alert (send_sock, AF_INET, TRUE), "router_alert failed");
const char data[] = "apple pie";
addr.sin_port = 7500;
ssize_t bytes_sent = sendto (send_sock, data, sizeof(data), 0, (struct sockaddr*)&addr, pgm_sockaddr_len ((struct sockaddr*)&addr));
if (-1 == bytes_sent)
g_message ("sendto: %s", strerror (errno));
fail_unless (sizeof(data) == bytes_sent, "sendto underrun");
char recv_data[1024];
ssize_t bytes_read = recv (recv_sock, recv_data, sizeof(recv_data), MSG_DONTWAIT);
if (-1 == bytes_read)
g_message ("recv: %s", strerror (errno));
const size_t ra_iphdr_len = sizeof(uint32_t) + sizeof(struct pgm_ip);
const size_t ra_pkt_len = ra_iphdr_len + sizeof(data);
if (ra_pkt_len != bytes_read)
g_message ("recv returned %zd bytes expected %zu.", bytes_read, ra_pkt_len);
fail_unless (ra_pkt_len == bytes_read, "recv underrun");
const struct pgm_ip* iphdr = (void*)recv_data;
fail_unless (4 == iphdr->ip_v, "Incorrect IP version, found %u expecting 4.", iphdr->ip_v);
if (ra_iphdr_len != (iphdr->ip_hl << 2)) {
g_message ("IP header length mismatch, found %zu expecting %zu.",
(size_t)(iphdr->ip_hl << 2), ra_iphdr_len);
}
g_message ("IP header length = %zu", (size_t)(iphdr->ip_hl << 2));
const uint32_t* ipopt = (const void*)&recv_data[ iphdr->ip_hl << 2 ];
const uint32_t ipopt_ra = ((uint32_t)PGM_IPOPT_RA << 24) | (0x04 << 16);
const uint32_t router_alert = htonl(ipopt_ra);
if (router_alert == *ipopt) {
g_message ("IP option router alert found after IP header length.");
ipopt += sizeof(uint32_t);
} else {
ipopt = (const void*)&recv_data[ sizeof(struct pgm_ip) ];
fail_unless (router_alert == *ipopt, "IP router alert option not found.");
g_message ("IP option router alert found before end of IP header length.");
}
g_message ("Final IP header length = %zu", (size_t)((const char*)ipopt - (const char*)recv_data));
fail_unless (0 == close (recv_sock), "close failed");
fail_unless (0 == close (send_sock), "close failed");
}
END_TEST
static
Suite*
make_test_suite (void)
{
Suite* s;
s = suite_create (__FILE__);
TCase* tc_multicast_loop = tcase_create ("multicast loop");
suite_add_tcase (s, tc_multicast_loop);
tcase_add_test (tc_multicast_loop, test_multicast_loop_pass_001);
TCase* tc_port_bind = tcase_create ("port bind");
suite_add_tcase (s, tc_port_bind);
tcase_add_test (tc_port_bind, test_port_bind_pass_001);
TCase* tc_hop_limit = tcase_create ("hop limit");
suite_add_tcase (s, tc_hop_limit);
tcase_add_test (tc_hop_limit, test_hop_limit_pass_001);
TCase* tc_router_alert = tcase_create ("router alert");
suite_add_tcase (s, tc_router_alert);
tcase_add_test (tc_router_alert, test_router_alert_pass_001);
return s;
}
static
Suite*
make_master_suite (void)
{
Suite* s = suite_create ("Master");
return s;
}
int
main (void)
{
SRunner* sr = srunner_create (make_master_suite ());
srunner_add_suite (sr, make_test_suite ());
srunner_run_all (sr, CK_ENV);
int number_failed = srunner_ntests_failed (sr);
srunner_free (sr);
return (number_failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}
/* eof */
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