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authorPatrik Flykt <patrik.flykt@linux.intel.com>2014-06-19 15:39:30 +0300
committerPatrik Flykt <patrik.flykt@linux.intel.com>2014-06-19 15:44:44 +0300
commit2ea8857effb833615b16d10fc7a19a7104c19e13 (patch)
tree6904a696f3097fe324f4a4f07df5e7681e0b2e85 /src
parenta9aff3615b430f86bd0a824214d95f634efaf894 (diff)
sd-dhcp6-client: Add DHCPv6 Solicit test case
Verify the Solicit message created by the DHCPv6 client code. Provide local variants for detect_vm(), detect_container() and detect_virtualization() defined in virt.h. This makes the DHCPv6 library believe it is run in a container and does not try to request interface information from udev for the non-existing interface index used by the test case code.
Diffstat (limited to 'src')
-rw-r--r--src/libsystemd-network/test-dhcp6-client.c151
1 files changed, 151 insertions, 0 deletions
diff --git a/src/libsystemd-network/test-dhcp6-client.c b/src/libsystemd-network/test-dhcp6-client.c
index b52f40792b..43b1275826 100644
--- a/src/libsystemd-network/test-dhcp6-client.c
+++ b/src/libsystemd-network/test-dhcp6-client.c
@@ -21,10 +21,16 @@
#include <stdbool.h>
#include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include <net/ethernet.h>
+#include "socket-util.h"
#include "macro.h"
#include "sd-event.h"
#include "event-util.h"
+#include "virt.h"
#include "sd-dhcp6-client.h"
#include "dhcp6-protocol.h"
@@ -36,6 +42,11 @@ static struct ether_addr mac_addr = {
static bool verbose = false;
+static sd_event_source *hangcheck;
+static int test_dhcp_fd[2];
+static int test_index = 42;
+static sd_event *e_solicit;
+
static int test_client_basic(sd_event *e) {
sd_dhcp6_client *client;
@@ -128,6 +139,145 @@ static int test_option(sd_event *e) {
return 0;
}
+static int test_hangcheck(sd_event_source *s, uint64_t usec, void *userdata) {
+ assert_not_reached("Test case should have completed in 2 seconds");
+
+ return 0;
+}
+
+int detect_vm(const char **id) {
+ return 1;
+}
+
+int detect_container(const char **id) {
+ return 1;
+}
+
+int detect_virtualization(const char **id) {
+ return 1;
+}
+
+int dhcp6_network_bind_udp_socket(int index, struct in6_addr *local_address) {
+ assert_se(index == test_index);
+
+ if (socketpair(AF_UNIX, SOCK_STREAM, 0, test_dhcp_fd) < 0)
+ return -errno;
+
+ return test_dhcp_fd[0];
+}
+
+static int verify_solicit(DHCP6Message *solicit, uint8_t *option, size_t len) {
+ uint8_t *optval;
+ uint16_t optcode;
+ size_t optlen;
+ bool found_clientid = false, found_iana = false;
+ int r;
+
+ assert_se(solicit->type == DHCP6_SOLICIT);
+
+ while ((r = dhcp6_option_parse(&option, &len,
+ &optcode, &optlen, &optval)) >= 0) {
+ switch(optcode) {
+ case DHCP6_OPTION_CLIENTID:
+ assert_se(!found_clientid);
+ found_clientid = true;
+
+ assert_se(optlen == 14);
+
+ break;
+
+ case DHCP6_OPTION_IA_NA:
+ assert_se(!found_iana);
+ found_iana = true;
+
+ assert_se(optlen == 12);
+
+ break;
+ }
+ }
+
+ assert_se(r == -ENOMSG);
+ assert_se(found_clientid && found_iana);
+
+ sd_event_exit(e_solicit, 0);
+
+ return 0;
+}
+
+int dhcp6_network_send_udp_socket(int s, struct in6_addr *server_address,
+ const void *packet, size_t len) {
+ struct in6_addr mcast =
+ IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT;
+ DHCP6Message *message;
+ uint8_t *option;
+
+ assert_se(s == test_dhcp_fd[0]);
+ assert_se(server_address);
+ assert_se(packet);
+ assert_se(len > sizeof(DHCP6Message) + 4);
+
+ assert_se(IN6_ARE_ADDR_EQUAL(server_address, &mcast));
+
+ message = (DHCP6Message *)packet;
+ option = (uint8_t *)(message + 1);
+ len -= sizeof(DHCP6Message);
+
+ assert_se(message->transaction_id & 0x00ffffff);
+
+ verify_solicit(message, option, len);
+
+ return len;
+}
+
+static void test_client_solicit_cb(sd_dhcp6_client *client, int event,
+ void *userdata) {
+ sd_event *e = userdata;
+
+ assert_se(e);
+
+ if (verbose)
+ printf(" got DHCPv6 event %d\n", event);
+
+ sd_event_exit(e, 0);
+}
+
+static int test_client_solicit(sd_event *e) {
+ sd_dhcp6_client *client;
+ usec_t time_now = now(CLOCK_MONOTONIC);
+
+ if (verbose)
+ printf("* %s\n", __FUNCTION__);
+
+ assert_se(sd_dhcp6_client_new(&client) >= 0);
+ assert_se(client);
+
+ assert_se(sd_dhcp6_client_attach_event(client, e, 0) >= 0);
+
+ assert_se(sd_dhcp6_client_set_index(client, test_index) == 0);
+ assert_se(sd_dhcp6_client_set_mac(client, &mac_addr) >= 0);
+
+ assert_se(sd_dhcp6_client_set_callback(client,
+ test_client_solicit_cb, e) >= 0);
+
+ assert_se(sd_event_add_time(e, &hangcheck, CLOCK_MONOTONIC,
+ time_now + 2 * USEC_PER_SEC, 0,
+ test_hangcheck, NULL) >= 0);
+
+ e_solicit = e;
+
+ assert_se(sd_dhcp6_client_start(client) >= 0);
+
+ sd_event_loop(e);
+
+ hangcheck = sd_event_source_unref(hangcheck);
+
+ assert_se(!sd_dhcp6_client_unref(client));
+
+ test_dhcp_fd[1] = safe_close(test_dhcp_fd[1]);
+
+ return 0;
+}
+
int main(int argc, char *argv[]) {
_cleanup_event_unref_ sd_event *e;
@@ -139,6 +289,7 @@ int main(int argc, char *argv[]) {
test_client_basic(e);
test_option(e);
+ test_client_solicit(e);
assert_se(!sd_event_unref(e));