示例#1
0
static int dhcp6_lease_address_acquired(sd_dhcp6_client *client, Link *link) {
        int r;
        sd_dhcp6_lease *lease;
        struct in6_addr ip6_addr;
        uint32_t lifetime_preferred, lifetime_valid;
        uint8_t prefixlen;

        r = sd_dhcp6_client_get_lease(client, &lease);
        if (r < 0)
                return r;

        sd_dhcp6_lease_reset_address_iter(lease);

        while (sd_dhcp6_lease_get_address(lease, &ip6_addr,
                                                &lifetime_preferred,
                                                &lifetime_valid) >= 0) {

                r = sd_icmp6_ra_get_prefixlen(link->icmp6_router_discovery,
                                        &ip6_addr, &prefixlen);
                if (r < 0 && r != -EADDRNOTAVAIL) {
                        log_link_warning_errno(link, r, "Could not get prefix information: %m");
                        return r;
                }

                if (r == -EADDRNOTAVAIL)
                        prefixlen = 128;

                r = dhcp6_address_change(link, &ip6_addr, prefixlen,
                                        lifetime_preferred, lifetime_valid);
                if (r < 0)
                        return r;
        }

        return 0;
}
static int dhcp6_prefix_expired(Link *link) {
        int r;
        sd_dhcp6_lease *lease;
        struct in6_addr *expired_prefix, ip6_addr;
        uint8_t expired_prefixlen;
        uint32_t lifetime_preferred, lifetime_valid;

        r = sd_icmp6_ra_get_expired_prefix(link->icmp6_router_discovery,
                                        &expired_prefix, &expired_prefixlen);
        if (r < 0)
                return r;

        r = sd_dhcp6_client_get_lease(link->dhcp6_client, &lease);
        if (r < 0)
                return r;

        sd_dhcp6_lease_reset_address_iter(lease);

        while (sd_dhcp6_lease_get_address(lease, &ip6_addr,
                                                &lifetime_preferred,
                                                &lifetime_valid) >= 0) {

                r = sd_icmp6_prefix_match(expired_prefix, expired_prefixlen,
                                        &ip6_addr);
                if (r >= 0) {
                        r = dhcp6_address_update(link, &ip6_addr, 128,
                                                lifetime_preferred,
                                                lifetime_valid);

                        return r;
                }
        }

        return 0;
}
示例#3
0
static int test_client_verify_information_request(DHCP6Message *information_request,
                                                  uint8_t *option, size_t len) {

        _cleanup_(sd_dhcp6_lease_unrefp) sd_dhcp6_lease *lease = NULL;
        uint8_t *optval;
        uint16_t optcode;
        size_t optlen;
        bool found_clientid = false, found_elapsed_time = false;
        int r;
        struct in6_addr addr;
        uint32_t lt_pref, lt_valid;

        assert_se(information_request->type == DHCP6_INFORMATION_REQUEST);

        assert_se(dhcp6_lease_new(&lease) >= 0);

        while ((r = dhcp6_option_parse(&option, &len,
                                       &optcode, &optlen, &optval)) >= 0) {
                switch(optcode) {
                case SD_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 SD_DHCP6_OPTION_IA_NA:
                        assert_not_reached("IA TA option must not be present");

                        break;

                case SD_DHCP6_OPTION_SERVERID:
                        assert_not_reached("Server ID option must not be present");

                        break;

                case SD_DHCP6_OPTION_ELAPSED_TIME:
                        assert_se(!found_elapsed_time);
                        found_elapsed_time = true;

                        assert_se(optlen == 2);

                        break;
                }
        }

        assert_se(r == -ENOMSG);
        assert_se(found_clientid && found_elapsed_time);

        sd_dhcp6_lease_reset_address_iter(lease);

        assert_se(sd_dhcp6_lease_get_address(lease, &addr, &lt_pref,
                                             &lt_valid) == -ENOMSG);

        return 0;
}
static int dhcp6_prefix_expired(Link *link) {
        int r;
        sd_dhcp6_lease *lease;
        struct in6_addr *expired_prefix, ip6_addr;
        uint8_t expired_prefixlen;
        uint32_t lifetime_preferred, lifetime_valid;

        r = sd_icmp6_ra_get_expired_prefix(link->icmp6_router_discovery,
                                        &expired_prefix, &expired_prefixlen);
        if (r < 0)
                return r;

        r = sd_dhcp6_client_get_lease(link->dhcp6_client, &lease);
        if (r < 0)
                return r;

        log_link_struct(link, LOG_INFO,
                        "MESSAGE=%-*s: IPv6 prefix "SD_ICMP6_ADDRESS_FORMAT_STR"/%d expired",
                        IFNAMSIZ, link->ifname,
                        SD_ICMP6_ADDRESS_FORMAT_VAL(*expired_prefix),
                        expired_prefixlen, NULL);

        sd_dhcp6_lease_reset_address_iter(lease);

        while (sd_dhcp6_lease_get_address(lease, &ip6_addr,
                                                &lifetime_preferred,
                                                &lifetime_valid) >= 0) {

                r = sd_icmp6_prefix_match(expired_prefix, expired_prefixlen,
                                        &ip6_addr);
                if (r < 0)
                        continue;

                log_link_struct(link, LOG_INFO,
                                "MESSAGE=%-*s: IPv6 prefix length updated "SD_ICMP6_ADDRESS_FORMAT_STR"/%d",
                                IFNAMSIZ, link->ifname,
                                SD_ICMP6_ADDRESS_FORMAT_VAL(ip6_addr), 128,
                                NULL);

                dhcp6_address_update(link, &ip6_addr, 128, lifetime_preferred,
                                     lifetime_valid);
        }

        return 0;
}
示例#5
0
static int dhcp6_lease_address_acquired(sd_dhcp6_client *client, Link *link) {
        int r;
        sd_dhcp6_lease *lease;
        struct in6_addr ip6_addr;
        uint32_t lifetime_preferred, lifetime_valid;

        r = sd_dhcp6_client_get_lease(client, &lease);
        if (r < 0)
                return r;

        sd_dhcp6_lease_reset_address_iter(lease);

        while (sd_dhcp6_lease_get_address(lease, &ip6_addr,
                                                &lifetime_preferred,
                                                &lifetime_valid) >= 0) {

                r = dhcp6_address_change(link, &ip6_addr, lifetime_preferred, lifetime_valid);
                if (r < 0)
                        return r;
        }

        return 0;
}
static NMIP6Config *
lease_to_ip6_config (const char *iface,
                     int ifindex,
                     sd_dhcp6_lease *lease,
                     GHashTable *options,
                     gboolean log_lease,
                     gboolean info_only,
                     GError **error)
{
	struct in6_addr tmp_addr, *dns;
	uint32_t lft_pref, lft_valid;
	NMIP6Config *ip6_config;
	const char *addr_str;
	char **domains;
	GString *str;
	int num, i;
	gint32 ts;

	g_return_val_if_fail (lease, NULL);
	ip6_config = nm_ip6_config_new (ifindex);
	ts = nm_utils_get_monotonic_timestamp_s ();
	str = g_string_sized_new (30);

	/* Addresses */
	sd_dhcp6_lease_reset_address_iter (lease);
	while (sd_dhcp6_lease_get_address (lease, &tmp_addr, &lft_pref, &lft_valid) >= 0) {
		NMPlatformIP6Address address = {
			.plen = 128,
			.address = tmp_addr,
			.timestamp = ts,
			.lifetime = lft_valid,
			.preferred = lft_pref,
			.addr_source = NM_IP_CONFIG_SOURCE_DHCP,
		};

		nm_ip6_config_add_address (ip6_config, &address);

		addr_str = nm_utils_inet6_ntop (&tmp_addr, NULL);
		g_string_append_printf (str, "%s%s", str->len ? " " : "", addr_str);

		LOG_LEASE (LOGD_DHCP6,
		           "  address %s",
		           nm_platform_ip6_address_to_string (&address, NULL, 0));
	};

	if (str->len) {
		add_option (options, dhcp6_requests, DHCP6_OPTION_IP_ADDRESS, str->str);
		g_string_set_size (str , 0);
	}

	if (!info_only && nm_ip6_config_get_num_addresses (ip6_config) == 0) {
		g_string_free (str, TRUE);
		g_object_unref (ip6_config);
		g_set_error_literal (error,
		                     NM_MANAGER_ERROR,
		                     NM_MANAGER_ERROR_FAILED,
		                     "no address received in managed mode");
		return NULL;
	}

	/* DNS servers */
	num = sd_dhcp6_lease_get_dns (lease, &dns);
	if (num > 0) {
		for (i = 0; i < num; i++) {
			nm_ip6_config_add_nameserver (ip6_config, &dns[i]);
			addr_str = nm_utils_inet6_ntop (&dns[i], NULL);
			g_string_append_printf (str, "%s%s", str->len ? " " : "", addr_str);
			LOG_LEASE (LOGD_DHCP6, "  nameserver %s", addr_str);
		}
		add_option (options, dhcp6_requests, SD_DHCP6_OPTION_DNS_SERVERS, str->str);
		g_string_set_size (str, 0);
	}

	/* Search domains */
	num = sd_dhcp6_lease_get_domains (lease, &domains);
	if (num > 0) {
		for (i = 0; i < num; i++) {
			nm_ip6_config_add_search (ip6_config, domains[i]);
			g_string_append_printf (str, "%s%s", str->len ? " " : "", domains[i]);
			LOG_LEASE (LOGD_DHCP6, "  domain name '%s'", domains[i]);
		}
		add_option (options, dhcp6_requests, SD_DHCP6_OPTION_DOMAIN_LIST, str->str);
		g_string_set_size (str, 0);
	}

	g_string_free (str, TRUE);

	return ip6_config;
}

static void
bound6_handle (NMDhcpSystemd *self)
{
	NMDhcpSystemdPrivate *priv = NM_DHCP_SYSTEMD_GET_PRIVATE (self);
	const char *iface = nm_dhcp_client_get_iface (NM_DHCP_CLIENT (self));
	gs_unref_object NMIP6Config *ip6_config = NULL;
	gs_unref_hashtable GHashTable *options = NULL;
	gs_free_error GError *error = NULL;
	sd_dhcp6_lease *lease;
	int r;

	r = sd_dhcp6_client_get_lease (priv->client6, &lease);
	if (r < 0 || !lease) {
		_LOGW (" no lease!");
		nm_dhcp_client_set_state (NM_DHCP_CLIENT (self), NM_DHCP_STATE_FAIL, NULL, NULL);
		return;
	}

	_LOGD ("lease available");

	options = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, g_free);
	ip6_config = lease_to_ip6_config (iface,
	                                  nm_dhcp_client_get_ifindex (NM_DHCP_CLIENT (self)),
	                                  lease,
	                                  options,
	                                  TRUE,
	                                  priv->info_only,
	                                  &error);

	if (ip6_config) {
		nm_dhcp_client_set_state (NM_DHCP_CLIENT (self),
		                          NM_DHCP_STATE_BOUND,
		                          G_OBJECT (ip6_config),
		                          options);
	} else {
		_LOGW ("%s", error->message);
		nm_dhcp_client_set_state (NM_DHCP_CLIENT (self), NM_DHCP_STATE_FAIL, NULL, NULL);
	}
}
示例#7
0
static int test_client_verify_request(DHCP6Message *request, uint8_t *option,
                                      size_t len) {
        _cleanup_(sd_dhcp6_lease_unrefp) sd_dhcp6_lease *lease = NULL;
        uint8_t *optval;
        uint16_t optcode;
        size_t optlen;
        bool found_clientid = false, found_iana = false, found_serverid = false,
                found_elapsed_time = 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 SD_DHCP6_OPTION_CLIENTID:
                        assert_se(!found_clientid);
                        found_clientid = true;

                        assert_se(!memcmp(optval, &test_duid,
                                          sizeof(test_duid)));

                        break;

                case SD_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 SD_DHCP6_OPTION_SERVERID:
                        assert_se(!found_serverid);
                        found_serverid = true;

                        assert_se(optlen == 14);
                        assert_se(!memcmp(&msg_advertise[179], optval, optlen));

                        break;

                case SD_DHCP6_OPTION_ELAPSED_TIME:
                        assert_se(!found_elapsed_time);
                        found_elapsed_time = true;

                        assert_se(optlen == 2);

                        break;
                }
        }

        assert_se(r == -ENOMSG);
        assert_se(found_clientid && found_iana && found_serverid &&
                  found_elapsed_time);

        sd_dhcp6_lease_reset_address_iter(lease);
        assert_se(sd_dhcp6_lease_get_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_address(lease, &addr, &lt_pref,
                                             &lt_valid) == -ENOMSG);

        return 0;
}
示例#8
0
static int test_advertise_option(sd_event *e) {
        _cleanup_(sd_dhcp6_lease_unrefp) 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) - sizeof(DHCP6Message);
        be32_t val;
        uint8_t preference = 255;
        struct in6_addr addr;
        uint32_t lt_pref, lt_valid;
        int r;
        bool opt_clientid = false;
        struct in6_addr *addrs;
        char **domains;

        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 SD_DHCP6_OPTION_CLIENTID:
                        assert_se(optlen == 14);

                        opt_clientid = true;
                        break;

                case SD_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 SD_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 SD_DHCP6_OPTION_PREFERENCE:
                        assert_se(optlen == 1);
                        assert_se(!*optval);

                        assert_se(dhcp6_lease_set_preference(lease,
                                                             *optval) >= 0);
                        break;

                case SD_DHCP6_OPTION_ELAPSED_TIME:
                        assert_se(optlen == 2);

                        break;

                case SD_DHCP6_OPTION_DNS_SERVERS:
                        assert_se(optlen == 16);
                        assert_se(dhcp6_lease_set_dns(lease, optval,
                                                      optlen) >= 0);
                        break;

                case SD_DHCP6_OPTION_DOMAIN_LIST:
                        assert_se(optlen == 11);
                        assert_se(dhcp6_lease_set_domains(lease, optval,
                                                          optlen) >= 0);
                        break;

                case SD_DHCP6_OPTION_SNTP_SERVERS:
                        assert_se(optlen == 16);
                        assert_se(dhcp6_lease_set_sntp(lease, optval,
                                                       optlen) >= 0);
                        break;

                default:
                        break;
                }
        }


        assert_se(r == -ENOMSG);

        assert_se(opt_clientid);

        sd_dhcp6_lease_reset_address_iter(lease);
        assert_se(sd_dhcp6_lease_get_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_address(lease, &addr, &lt_pref,
                                             &lt_valid) == -ENOMSG);

        sd_dhcp6_lease_reset_address_iter(lease);
        assert_se(sd_dhcp6_lease_get_address(lease, &addr, &lt_pref,
                                             &lt_valid) >= 0);
        assert_se(!memcmp(&addr, &msg_advertise[42], sizeof(addr)));
        assert_se(sd_dhcp6_lease_get_address(lease, &addr, &lt_pref,
                                             &lt_valid) == -ENOMSG);
        sd_dhcp6_lease_reset_address_iter(lease);
        assert_se(sd_dhcp6_lease_get_address(lease, &addr, &lt_pref,
                                             &lt_valid) >= 0);
        assert_se(!memcmp(&addr, &msg_advertise[42], sizeof(addr)));
        assert_se(sd_dhcp6_lease_get_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);

        r = sd_dhcp6_lease_get_dns(lease, &addrs);
        assert_se(r == 1);
        assert_se(!memcmp(addrs, &msg_advertise[124], r * 16));

        r = sd_dhcp6_lease_get_domains(lease, &domains);
        assert_se(r == 1);
        assert_se(!strcmp("lab.intra", domains[0]));
        assert_se(domains[1] == NULL);

        r = sd_dhcp6_lease_get_ntp_addrs(lease, &addrs);
        assert_se(r == 1);
        assert_se(!memcmp(addrs, &msg_advertise[159], r * 16));

        return 0;
}
示例#9
0
static int test_client_verify_information_request(DHCP6Message *information_request,
                                                  size_t len) {

        _cleanup_(sd_dhcp6_lease_unrefp) sd_dhcp6_lease *lease = NULL;
        size_t pos = 0;
        bool found_clientid = false, found_elapsed_time = false;
        struct in6_addr addr;
        uint32_t lt_pref, lt_valid;

        assert_se(information_request->type == DHCP6_INFORMATION_REQUEST);

        assert_se(dhcp6_lease_new(&lease) >= 0);

        len -= sizeof(DHCP6Message);

        while (pos < len) {
                DHCP6Option *option = (DHCP6Option *)&information_request->options[pos];
                uint16_t optcode = be16toh(option->code);
                uint16_t optlen = be16toh(option->len);
                uint8_t *optval = option->data;

                switch(optcode) {
                case SD_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 SD_DHCP6_OPTION_IA_NA:
                        assert_not_reached("IA TA option must not be present");

                        break;

                case SD_DHCP6_OPTION_SERVERID:
                        assert_not_reached("Server ID option must not be present");

                        break;

                case SD_DHCP6_OPTION_ELAPSED_TIME:
                        assert_se(!found_elapsed_time);
                        found_elapsed_time = true;

                        assert_se(optlen == 2);

                        break;
                }

                pos += sizeof(*option) + optlen;
        }

        assert_se(pos == len);
        assert_se(found_clientid && found_elapsed_time);

        sd_dhcp6_lease_reset_address_iter(lease);

        assert_se(sd_dhcp6_lease_get_address(lease, &addr, &lt_pref,
                                             &lt_valid) == -ENOMSG);

        return 0;
}
示例#10
0
static int test_client_verify_request(DHCP6Message *request, size_t len) {
        _cleanup_(sd_dhcp6_lease_unrefp) sd_dhcp6_lease *lease = NULL;
        size_t pos = 0;
        bool found_clientid = false, found_iana = false, found_serverid = false,
                found_elapsed_time = false, found_fqdn = false;
        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);

        len -= sizeof(DHCP6Message);

        while (pos < len) {
                DHCP6Option *option = (DHCP6Option *)&request->options[pos];
                uint16_t optcode = be16toh(option->code);
                uint16_t optlen = be16toh(option->len);
                uint8_t *optval = option->data;

                switch(optcode) {
                case SD_DHCP6_OPTION_CLIENTID:
                        assert_se(!found_clientid);
                        found_clientid = true;

                        assert_se(!memcmp(optval, &test_duid,
                                          sizeof(test_duid)));

                        break;

                case SD_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(option, &lease->ia));

                        break;

                case SD_DHCP6_OPTION_SERVERID:
                        assert_se(!found_serverid);
                        found_serverid = true;

                        assert_se(optlen == 14);
                        assert_se(!memcmp(&msg_advertise[179], optval, optlen));

                        break;

                case SD_DHCP6_OPTION_ELAPSED_TIME:
                        assert_se(!found_elapsed_time);
                        found_elapsed_time = true;

                        assert_se(optlen == 2);

                        break;
                case SD_DHCP6_OPTION_FQDN:
                        assert_se(!found_fqdn);
                        found_fqdn = true;

                        assert_se(optlen == 17);

                        assert_se(optval[0] == 0x01);
                        assert_se(!memcmp(optval + 1, fqdn_wire, sizeof(fqdn_wire)));
                        break;
                }

                pos += sizeof(*option) + optlen;
        }

        assert_se(found_clientid && found_iana && found_serverid &&
                  found_elapsed_time);

        sd_dhcp6_lease_reset_address_iter(lease);
        assert_se(sd_dhcp6_lease_get_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_address(lease, &addr, &lt_pref,
                                             &lt_valid) == -ENOMSG);

        return 0;
}