X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flibsystemd-network%2Ftest-dhcp6-client.c;h=5bb410dab3f5bfc9316aea36862eeeee667743e4;hb=5e56b378b40dc4dc5557e653487b608fd91fcc26;hp=b2dc8ba0c5d8c2646c6a766d5c35df1fc64ad71a;hpb=813e3a6ffcd094696001716480bbd68008cc54c8;p=elogind.git

diff --git a/src/libsystemd-network/test-dhcp6-client.c b/src/libsystemd-network/test-dhcp6-client.c
index b2dc8ba0c..5bb410dab 100644
--- a/src/libsystemd-network/test-dhcp6-client.c
+++ b/src/libsystemd-network/test-dhcp6-client.c
@@ -21,13 +21,21 @@
 
 #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"
+#include "dhcp6-internal.h"
+#include "dhcp6-lease-internal.h"
 
 static struct ether_addr mac_addr = {
         .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}
@@ -35,6 +43,13 @@ 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 int test_client_message_num;
+static be32_t test_iaid = 0;
+static uint8_t test_duid[14] = { };
+
 static int test_client_basic(sd_event *e) {
         sd_dhcp6_client *client;
 
@@ -53,6 +68,13 @@ static int test_client_basic(sd_event *e) {
 
         assert_se(sd_dhcp6_client_set_mac(client, &mac_addr) >= 0);
 
+        assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_CLIENTID) == -EINVAL);
+        assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_DNS_SERVERS) == -EEXIST);
+        assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_NTP_SERVER) == -EEXIST);
+        assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_SNTP_SERVERS) == 0);
+        assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_DOMAIN_LIST) == -EEXIST);
+        assert_se(sd_dhcp6_client_set_request_option(client, 10) == -EINVAL);
+
         assert_se(sd_dhcp6_client_set_callback(client, NULL, NULL) >= 0);
 
         assert_se(sd_dhcp6_client_detach_event(client) >= 0);
@@ -61,6 +83,493 @@ static int test_client_basic(sd_event *e) {
         return 0;
 }
 
+static int test_option(sd_event *e) {
+        uint8_t packet[] = {
+                'F', 'O', 'O',
+                0x00, DHCP6_OPTION_ORO, 0x00, 0x07,
+                'A', 'B', 'C', 'D', 'E', 'F', 'G',
+                0x00, DHCP6_OPTION_VENDOR_CLASS, 0x00, 0x09,
+                '1', '2', '3', '4', '5', '6', '7', '8', '9',
+                'B', 'A', 'R',
+        };
+        uint8_t result[] = {
+                'F', 'O', 'O',
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                'B', 'A', 'R',
+        };
+        uint16_t optcode;
+        size_t optlen;
+        uint8_t *optval, *buf, *out;
+        size_t zero = 0, pos = 3;
+        size_t buflen = sizeof(packet), outlen = sizeof(result);
+
+        if (verbose)
+                printf("* %s\n", __FUNCTION__);
+
+        assert_se(buflen == outlen);
+
+        assert_se(dhcp6_option_parse(&buf, &zero, &optcode, &optlen,
+                                     &optval) == -ENOMSG);
+
+        buflen -= 3;
+        buf = &packet[3];
+        outlen -= 3;
+        out = &result[3];
+
+        assert_se(dhcp6_option_parse(&buf, &buflen, &optcode, &optlen,
+                                     &optval) >= 0);
+        pos += 4 + optlen;
+        assert_se(buf == &packet[pos]);
+        assert_se(optcode == DHCP6_OPTION_ORO);
+        assert_se(optlen == 7);
+        assert_se(buflen + pos == sizeof(packet));
+
+        assert_se(dhcp6_option_append(&out, &outlen, optcode, optlen,
+                                      optval) >= 0);
+        assert_se(out == &result[pos]);
+        assert_se(*out == 0x00);
+
+        assert_se(dhcp6_option_parse(&buf, &buflen, &optcode, &optlen,
+                                     &optval) >= 0);
+        pos += 4 + optlen;
+        assert_se(buf == &packet[pos]);
+        assert_se(optcode == DHCP6_OPTION_VENDOR_CLASS);
+        assert_se(optlen == 9);
+        assert_se(buflen + pos == sizeof(packet));
+
+        assert_se(dhcp6_option_append(&out, &outlen, optcode, optlen,
+                                      optval) >= 0);
+        assert_se(out == &result[pos]);
+        assert_se(*out == 'B');
+
+        assert_se(memcmp(packet, result, sizeof(packet)) == 0);
+
+        return 0;
+}
+
+static uint8_t msg_advertise[198] = {
+        0x02, 0x0f, 0xb4, 0xe5, 0x00, 0x01, 0x00, 0x0e,
+        0x00, 0x01, 0x00, 0x01, 0x1a, 0x6b, 0xf3, 0x30,
+        0x3c, 0x97, 0x0e, 0xcf, 0xa3, 0x7d, 0x00, 0x03,
+        0x00, 0x5e, 0x0e, 0xcf, 0xa3, 0x7d, 0x00, 0x00,
+        0x00, 0x50, 0x00, 0x00, 0x00, 0x78, 0x00, 0x05,
+        0x00, 0x18, 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad,
+        0xbe, 0xef, 0x78, 0xee, 0x1c, 0xf3, 0x09, 0x3c,
+        0x55, 0xad, 0x00, 0x00, 0x00, 0x96, 0x00, 0x00,
+        0x00, 0xb4, 0x00, 0x0d, 0x00, 0x32, 0x00, 0x00,
+        0x41, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x28,
+        0x65, 0x73, 0x29, 0x20, 0x72, 0x65, 0x6e, 0x65,
+        0x77, 0x65, 0x64, 0x2e, 0x20, 0x47, 0x72, 0x65,
+        0x65, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x20, 0x66,
+        0x72, 0x6f, 0x6d, 0x20, 0x70, 0x6c, 0x61, 0x6e,
+        0x65, 0x74, 0x20, 0x45, 0x61, 0x72, 0x74, 0x68,
+        0x00, 0x17, 0x00, 0x10, 0x20, 0x01, 0x0d, 0xb8,
+        0xde, 0xad, 0xbe, 0xef, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x01, 0x00, 0x18, 0x00, 0x0b,
+        0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74,
+        0x72, 0x61, 0x00, 0x00, 0x1f, 0x00, 0x10, 0x20,
+        0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+        0x02, 0x00, 0x0e, 0x00, 0x01, 0x00, 0x01, 0x19,
+        0x40, 0x5c, 0x53, 0x78, 0x2b, 0xcb, 0xb3, 0x6d,
+        0x53, 0x00, 0x07, 0x00, 0x01, 0x00
+};
+
+static uint8_t msg_reply[173] = {
+        0x07, 0xf7, 0x4e, 0x57, 0x00, 0x02, 0x00, 0x0e,
+        0x00, 0x01, 0x00, 0x01, 0x19, 0x40, 0x5c, 0x53,
+        0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53, 0x00, 0x01,
+        0x00, 0x0e, 0x00, 0x01, 0x00, 0x01, 0x1a, 0x6b,
+        0xf3, 0x30, 0x3c, 0x97, 0x0e, 0xcf, 0xa3, 0x7d,
+        0x00, 0x03, 0x00, 0x4a, 0x0e, 0xcf, 0xa3, 0x7d,
+        0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x78,
+        0x00, 0x05, 0x00, 0x18, 0x20, 0x01, 0x0d, 0xb8,
+        0xde, 0xad, 0xbe, 0xef, 0x78, 0xee, 0x1c, 0xf3,
+        0x09, 0x3c, 0x55, 0xad, 0x00, 0x00, 0x00, 0x96,
+        0x00, 0x00, 0x00, 0xb4, 0x00, 0x0d, 0x00, 0x1e,
+        0x00, 0x00, 0x41, 0x6c, 0x6c, 0x20, 0x61, 0x64,
+        0x64, 0x72, 0x65, 0x73, 0x73, 0x65, 0x73, 0x20,
+        0x77, 0x65, 0x72, 0x65, 0x20, 0x61, 0x73, 0x73,
+        0x69, 0x67, 0x6e, 0x65, 0x64, 0x2e, 0x00, 0x17,
+        0x00, 0x10, 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad,
+        0xbe, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x01, 0x00, 0x18, 0x00, 0x0b, 0x03, 0x6c,
+        0x61, 0x62, 0x05, 0x69, 0x6e, 0x74, 0x72, 0x61,
+        0x00, 0x00, 0x1f, 0x00, 0x10, 0x20, 0x01, 0x0d,
+        0xb8, 0xde, 0xad, 0xbe, 0xef, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x01
+};
+
+static int test_advertise_option(sd_event *e) {
+        _cleanup_dhcp6_lease_free_ sd_dhcp6_lease *lease = NULL;
+        DHCP6Message *advertise = (DHCP6Message *)msg_advertise;
+        uint8_t *optval, *opt = &msg_advertise[sizeof(DHCP6Message)];
+        uint16_t optcode;
+        size_t optlen, len = sizeof(msg_advertise);
+        be32_t val;
+        uint8_t preference = 255;
+        struct in6_addr addr;
+        uint32_t lt_pref, lt_valid;
+        int r;
+        bool opt_clientid = false;
+
+        if (verbose)
+                printf("* %s\n", __FUNCTION__);
+
+        assert_se(dhcp6_lease_new(&lease) >= 0);
+
+        assert_se(advertise->type == DHCP6_ADVERTISE);
+        assert_se((be32toh(advertise->transaction_id) & 0x00ffffff) ==
+                  0x0fb4e5);
+
+        while ((r = dhcp6_option_parse(&opt, &len, &optcode, &optlen,
+                                       &optval)) >= 0) {
+
+                switch(optcode) {
+                case DHCP6_OPTION_CLIENTID:
+                        assert_se(optlen == 14);
+
+                        opt_clientid = true;
+                        break;
+
+                case DHCP6_OPTION_IA_NA:
+                        assert_se(optlen == 94);
+                        assert_se(!memcmp(optval, &msg_advertise[26], optlen));
+
+                        val = htobe32(0x0ecfa37d);
+                        assert_se(!memcmp(optval, &val, sizeof(val)));
+
+                        val = htobe32(80);
+                        assert_se(!memcmp(optval + 4, &val, sizeof(val)));
+
+                        val = htobe32(120);
+                        assert_se(!memcmp(optval + 8, &val, sizeof(val)));
+
+                        assert_se(dhcp6_option_parse_ia(&optval, &optlen,
+                                                        optcode,
+                                                        &lease->ia) >= 0);
+
+                        break;
+
+                case DHCP6_OPTION_SERVERID:
+                        assert_se(optlen == 14);
+                        assert_se(!memcmp(optval, &msg_advertise[179], optlen));
+
+                        assert_se(dhcp6_lease_set_serverid(lease, optval,
+                                                           optlen) >= 0);
+                        break;
+
+                case DHCP6_OPTION_PREFERENCE:
+                        assert_se(optlen == 1);
+                        assert_se(!*optval);
+
+                        assert_se(dhcp6_lease_set_preference(lease,
+                                                             *optval) >= 0);
+                        break;
+
+                default:
+                        break;
+                }
+        }
+
+
+        assert_se(r == -ENOMSG);
+
+        assert_se(opt_clientid);
+
+        assert_se(sd_dhcp6_lease_get_first_address(lease, &addr, &lt_pref,
+                                                   &lt_valid) >= 0);
+        assert_se(!memcmp(&addr, &msg_advertise[42], sizeof(addr)));
+        assert_se(lt_pref == 150);
+        assert_se(lt_valid == 180);
+        assert_se(sd_dhcp6_lease_get_next_address(lease, &addr, &lt_pref,
+                                                  &lt_valid) == -ENOMSG);
+
+        assert_se(sd_dhcp6_lease_get_first_address(lease, &addr, &lt_pref,
+                                                   &lt_valid) >= 0);
+        assert_se(!memcmp(&addr, &msg_advertise[42], sizeof(addr)));
+        assert_se(sd_dhcp6_lease_get_next_address(lease, &addr, &lt_pref,
+                                                  &lt_valid) == -ENOMSG);
+        assert_se(sd_dhcp6_lease_get_next_address(lease, &addr, &lt_pref,
+                                                  &lt_valid) == -ENOMSG);
+        assert_se(sd_dhcp6_lease_get_first_address(lease, &addr, &lt_pref,
+                                                   &lt_valid) >= 0);
+        assert_se(!memcmp(&addr, &msg_advertise[42], sizeof(addr)));
+        assert_se(sd_dhcp6_lease_get_next_address(lease, &addr, &lt_pref,
+                                                  &lt_valid) == -ENOMSG);
+
+        assert_se(dhcp6_lease_get_serverid(lease, &opt, &len) >= 0);
+        assert_se(len == 14);
+        assert_se(!memcmp(opt, &msg_advertise[179], len));
+
+        assert_se(dhcp6_lease_get_preference(lease, &preference) >= 0);
+        assert_se(preference == 0);
+
+        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 test_client_send_reply(DHCP6Message *request) {
+        DHCP6Message reply;
+
+        reply.transaction_id = request->transaction_id;
+        reply.type = DHCP6_REPLY;
+
+        memcpy(msg_reply, &reply.transaction_id, 4);
+
+        memcpy(&msg_reply[26], test_duid, sizeof(test_duid));
+
+        memcpy(&msg_reply[44], &test_iaid, sizeof(test_iaid));
+
+        assert_se(write(test_dhcp_fd[1], msg_reply, sizeof(msg_reply))
+                  == sizeof(msg_reply));
+
+        return 0;
+}
+
+static int test_client_verify_request(DHCP6Message *request, uint8_t *option,
+                                      size_t len) {
+        _cleanup_dhcp6_lease_free_ sd_dhcp6_lease *lease = NULL;
+        uint8_t *optval;
+        uint16_t optcode;
+        size_t optlen;
+        bool found_clientid = false, found_iana = false, found_serverid = false;
+        int r;
+        struct in6_addr addr;
+        be32_t val;
+        uint32_t lt_pref, lt_valid;
+
+        assert_se(request->type == DHCP6_REQUEST);
+
+        assert_se(dhcp6_lease_new(&lease) >= 0);
+
+        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(!memcmp(optval, &test_duid,
+                                          sizeof(test_duid)));
+
+                        break;
+
+                case DHCP6_OPTION_IA_NA:
+                        assert_se(!found_iana);
+                        found_iana = true;
+
+
+                        assert_se(optlen == 40);
+                        assert_se(!memcmp(optval, &test_iaid, sizeof(test_iaid)));
+
+                        val = htobe32(80);
+                        assert_se(!memcmp(optval + 4, &val, sizeof(val)));
+
+                        val = htobe32(120);
+                        assert_se(!memcmp(optval + 8, &val, sizeof(val)));
+
+                        assert_se(!dhcp6_option_parse_ia(&optval, &optlen,
+                                                         optcode, &lease->ia));
+
+                        break;
+
+                case DHCP6_OPTION_SERVERID:
+                        assert_se(!found_serverid);
+                        found_serverid = true;
+
+                        assert_se(optlen == 14);
+                        assert_se(!memcmp(&msg_advertise[179], optval, optlen));
+
+                        break;
+                }
+        }
+
+        assert_se(r == -ENOMSG);
+        assert_se(found_clientid && found_iana && found_serverid);
+
+        assert_se(sd_dhcp6_lease_get_first_address(lease, &addr, &lt_pref,
+                                                   &lt_valid) >= 0);
+        assert_se(!memcmp(&addr, &msg_advertise[42], sizeof(addr)));
+        assert_se(lt_pref == 150);
+        assert_se(lt_valid == 180);
+
+        assert_se(sd_dhcp6_lease_get_next_address(lease, &addr, &lt_pref,
+                                                  &lt_valid) == -ENOMSG);
+
+        return 0;
+}
+
+static int test_client_send_advertise(DHCP6Message *solicit)
+{
+        DHCP6Message advertise;
+
+        advertise.transaction_id = solicit->transaction_id;
+        advertise.type = DHCP6_ADVERTISE;
+
+        memcpy(msg_advertise, &advertise.transaction_id, 4);
+
+        memcpy(&msg_advertise[8], test_duid, sizeof(test_duid));
+
+        memcpy(&msg_advertise[26], &test_iaid, sizeof(test_iaid));
+
+        assert_se(write(test_dhcp_fd[1], msg_advertise, sizeof(msg_advertise))
+                  == sizeof(msg_advertise));
+
+        return 0;
+}
+
+static int test_client_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 == sizeof(test_duid));
+                        memcpy(&test_duid, optval, sizeof(test_duid));
+
+                        break;
+
+                case DHCP6_OPTION_IA_NA:
+                        assert_se(!found_iana);
+                        found_iana = true;
+
+                        assert_se(optlen == 12);
+
+                        memcpy(&test_iaid, optval, sizeof(test_iaid));
+
+                        break;
+                }
+        }
+
+        assert_se(r == -ENOMSG);
+        assert_se(found_clientid && found_iana);
+
+        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);
+
+        if (test_client_message_num == 0) {
+                test_client_verify_solicit(message, option, len);
+                test_client_send_advertise(message);
+                test_client_message_num++;
+        } else if (test_client_message_num == 1) {
+                test_client_verify_request(message, option, len);
+                test_client_send_reply(message);
+                test_client_message_num++;
+        }
+
+        return len;
+}
+
+static void test_client_solicit_cb(sd_dhcp6_client *client, int event,
+                                   void *userdata) {
+        sd_event *e = userdata;
+
+        assert_se(e);
+        assert_se(event == DHCP6_EVENT_IP_ACQUIRE);
+
+        assert_se(sd_dhcp6_client_set_request_option(client, DHCP6_OPTION_DNS_SERVERS) == -EBUSY);
+
+        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);
+
+        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;
 
@@ -71,6 +580,11 @@ int main(int argc, char *argv[]) {
         log_open();
 
         test_client_basic(e);
+        test_option(e);
+        test_advertise_option(e);
+        test_client_solicit(e);
+
+        assert_se(!sd_event_unref(e));
 
         return 0;
 }