static int dhcp_lease_lost(Link *link) { _cleanup_address_free_ Address *address = NULL; struct in_addr addr; struct in_addr netmask; struct in_addr gateway; unsigned prefixlen = 0; int r; assert(link); assert(link->dhcp_lease); log_link_warning(link, "DHCP lease lost"); if (link->network->dhcp_use_routes) { _cleanup_free_ sd_dhcp_route **routes = NULL; int n, i; n = sd_dhcp_lease_get_routes(link->dhcp_lease, &routes); if (n >= 0) { for (i = 0; i < n; i++) { _cleanup_route_free_ Route *route = NULL; r = route_new(&route); if (r >= 0) { route->family = AF_INET; assert_se(sd_dhcp_route_get_gateway(routes[i], &route->gw.in) >= 0); assert_se(sd_dhcp_route_get_destination(routes[i], &route->dst.in) >= 0); assert_se(sd_dhcp_route_get_destination_prefix_length(routes[i], &route->dst_prefixlen) >= 0); route_remove(route, link, link_route_remove_handler); } } } } r = address_new(&address); if (r >= 0) { r = sd_dhcp_lease_get_router(link->dhcp_lease, &gateway); if (r >= 0) { _cleanup_route_free_ Route *route_gw = NULL; _cleanup_route_free_ Route *route = NULL; r = route_new(&route_gw); if (r >= 0) { route_gw->family = AF_INET; route_gw->dst.in = gateway; route_gw->dst_prefixlen = 32; route_gw->scope = RT_SCOPE_LINK; route_remove(route_gw, link, link_route_remove_handler); } r = route_new(&route); if (r >= 0) { route->family = AF_INET; route->gw.in = gateway; route_remove(route, link, link_route_remove_handler); } } r = sd_dhcp_lease_get_address(link->dhcp_lease, &addr); if (r >= 0) { r = sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask); if (r >= 0) prefixlen = in_addr_netmask_to_prefixlen(&netmask); address->family = AF_INET; address->in_addr.in = addr; address->prefixlen = prefixlen; address_remove(address, link, link_address_remove_handler); } } if (link->network->dhcp_use_mtu) { uint16_t mtu; r = sd_dhcp_lease_get_mtu(link->dhcp_lease, &mtu); if (r >= 0 && link->original_mtu != mtu) { r = link_set_mtu(link, link->original_mtu); if (r < 0) { log_link_warning(link, "DHCP error: could not reset MTU"); link_enter_failed(link); return r; } } } if (link->network->dhcp_use_hostname) { const char *hostname = NULL; if (link->network->dhcp_hostname) hostname = link->network->dhcp_hostname; else (void) sd_dhcp_lease_get_hostname(link->dhcp_lease, &hostname); if (hostname) { /* If a hostname was set due to the lease, then unset it now. */ r = manager_set_hostname(link->manager, NULL); if (r < 0) log_link_warning_errno(link, r, "Failed to reset transient hostname: %m"); } } link->dhcp_lease = sd_dhcp_lease_unref(link->dhcp_lease); link_dirty(link); link->dhcp4_configured = false; return 0; }
static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) { sd_dhcp_lease *lease; struct in_addr address; struct in_addr netmask; struct in_addr gateway; unsigned prefixlen; uint32_t lifetime = CACHE_INFO_INFINITY_LIFE_TIME; int r; assert(client); assert(link); r = sd_dhcp_client_get_lease(client, &lease); if (r < 0) return log_link_error_errno(link, r, "DHCP error: No lease: %m"); r = sd_dhcp_lease_get_address(lease, &address); if (r < 0) return log_link_error_errno(link, r, "DHCP error: No address: %m"); r = sd_dhcp_lease_get_netmask(lease, &netmask); if (r < 0) return log_link_error_errno(link, r, "DHCP error: No netmask: %m"); prefixlen = in_addr_netmask_to_prefixlen(&netmask); r = sd_dhcp_lease_get_router(lease, &gateway); if (r < 0 && r != -ENODATA) return log_link_error_errno(link, r, "DHCP error: Could not get gateway: %m"); if (r >= 0) log_struct(LOG_INFO, LOG_LINK_INTERFACE(link), LOG_LINK_MESSAGE(link, "DHCPv4 address %u.%u.%u.%u/%u via %u.%u.%u.%u", ADDRESS_FMT_VAL(address), prefixlen, ADDRESS_FMT_VAL(gateway)), "ADDRESS=%u.%u.%u.%u", ADDRESS_FMT_VAL(address), "PREFIXLEN=%u", prefixlen, "GATEWAY=%u.%u.%u.%u", ADDRESS_FMT_VAL(gateway), NULL); else log_struct(LOG_INFO, LOG_LINK_INTERFACE(link), LOG_LINK_MESSAGE(link, "DHCPv4 address %u.%u.%u.%u/%u", ADDRESS_FMT_VAL(address), prefixlen), "ADDRESS=%u.%u.%u.%u", ADDRESS_FMT_VAL(address), "PREFIXLEN=%u", prefixlen, NULL); link->dhcp_lease = sd_dhcp_lease_ref(lease); link_dirty(link); if (link->network->dhcp_use_mtu) { uint16_t mtu; r = sd_dhcp_lease_get_mtu(lease, &mtu); if (r >= 0) { r = link_set_mtu(link, mtu); if (r < 0) log_link_error_errno(link, r, "Failed to set MTU to %" PRIu16 ": %m", mtu); } } if (link->network->dhcp_use_hostname) { const char *hostname = NULL; if (link->network->dhcp_hostname) hostname = link->network->dhcp_hostname; else (void) sd_dhcp_lease_get_hostname(lease, &hostname); if (hostname) { r = manager_set_hostname(link->manager, hostname); if (r < 0) log_link_error_errno(link, r, "Failed to set transient hostname to '%s': %m", hostname); } } if (link->network->dhcp_use_timezone) { const char *tz = NULL; (void) sd_dhcp_lease_get_timezone(link->dhcp_lease, &tz); if (tz) { r = manager_set_timezone(link->manager, tz); if (r < 0) log_link_error_errno(link, r, "Failed to set timezone to '%s': %m", tz); } } if (!link->network->dhcp_critical) { r = sd_dhcp_lease_get_lifetime(link->dhcp_lease, &lifetime); if (r < 0) { log_link_warning_errno(link, r, "DHCP error: no lifetime: %m"); return r; } } r = dhcp4_update_address(link, &address, &netmask, lifetime); if (r < 0) { log_link_warning_errno(link, r, "Could not update IP address: %m"); link_enter_failed(link); return r; } return 0; }
static NMIP4Config * lease_to_ip4_config (const char *iface, int ifindex, sd_dhcp_lease *lease, GHashTable *options, guint32 default_priority, gboolean log_lease, GError **error) { NMIP4Config *ip4_config = NULL; struct in_addr tmp_addr; const struct in_addr *addr_list; char buf[INET_ADDRSTRLEN]; const char *str; guint32 lifetime = 0, i; NMPlatformIP4Address address; GString *l; gs_free sd_dhcp_route **routes = NULL; guint16 mtu; int r, num; guint64 end_time; const void *data; gsize data_len; gboolean metered = FALSE; gboolean static_default_gateway = FALSE; g_return_val_if_fail (lease != NULL, NULL); ip4_config = nm_ip4_config_new (ifindex); /* Address */ sd_dhcp_lease_get_address (lease, &tmp_addr); memset (&address, 0, sizeof (address)); address.address = tmp_addr.s_addr; address.peer_address = tmp_addr.s_addr; str = nm_utils_inet4_ntop (tmp_addr.s_addr, NULL); LOG_LEASE (LOGD_DHCP4, " address %s", str); add_option (options, dhcp4_requests, DHCP_OPTION_IP_ADDRESS, str); /* Prefix/netmask */ sd_dhcp_lease_get_netmask (lease, &tmp_addr); address.plen = nm_utils_ip4_netmask_to_prefix (tmp_addr.s_addr); LOG_LEASE (LOGD_DHCP4, " plen %d", address.plen); add_option (options, dhcp4_requests, SD_DHCP_OPTION_SUBNET_MASK, nm_utils_inet4_ntop (tmp_addr.s_addr, NULL)); /* Lease time */ sd_dhcp_lease_get_lifetime (lease, &lifetime); address.timestamp = nm_utils_get_monotonic_timestamp_s (); address.lifetime = address.preferred = lifetime; end_time = (guint64) time (NULL) + lifetime; LOG_LEASE (LOGD_DHCP4, " expires in %" G_GUINT32_FORMAT " seconds", lifetime); add_option_u64 (options, dhcp4_requests, SD_DHCP_OPTION_IP_ADDRESS_LEASE_TIME, end_time); address.addr_source = NM_IP_CONFIG_SOURCE_DHCP; nm_ip4_config_add_address (ip4_config, &address); /* DNS Servers */ num = sd_dhcp_lease_get_dns (lease, &addr_list); if (num > 0) { l = g_string_sized_new (30); for (i = 0; i < num; i++) { if (addr_list[i].s_addr) { nm_ip4_config_add_nameserver (ip4_config, addr_list[i].s_addr); str = nm_utils_inet4_ntop (addr_list[i].s_addr, NULL); LOG_LEASE (LOGD_DHCP4, " nameserver '%s'", str); g_string_append_printf (l, "%s%s", l->len ? " " : "", str); } } if (l->len) add_option (options, dhcp4_requests, SD_DHCP_OPTION_DOMAIN_NAME_SERVER, l->str); g_string_free (l, TRUE); } /* Domain Name */ r = sd_dhcp_lease_get_domainname (lease, &str); if (r == 0) { /* Multiple domains sometimes stuffed into option 15 "Domain Name". * As systemd escapes such characters, split them at \\032. */ char **domains = g_strsplit (str, "\\032", 0); char **s; for (s = domains; *s; s++) { LOG_LEASE (LOGD_DHCP4, " domain name '%s'", *s); nm_ip4_config_add_domain (ip4_config, *s); } g_strfreev (domains); add_option (options, dhcp4_requests, SD_DHCP_OPTION_DOMAIN_NAME, str); } /* Hostname */ r = sd_dhcp_lease_get_hostname (lease, &str); if (r == 0) { LOG_LEASE (LOGD_DHCP4, " hostname '%s'", str); add_option (options, dhcp4_requests, SD_DHCP_OPTION_HOST_NAME, str); } /* Routes */ num = sd_dhcp_lease_get_routes (lease, &routes); if (num > 0) { l = g_string_sized_new (30); for (i = 0; i < num; i++) { NMPlatformIP4Route route = { 0 }; const char *gw_str; guint8 plen; struct in_addr a; if (sd_dhcp_route_get_destination (routes[i], &a) < 0) continue; route.network = a.s_addr; if ( sd_dhcp_route_get_destination_prefix_length (routes[i], &plen) < 0 || plen > 32) continue; route.plen = plen; if (sd_dhcp_route_get_gateway (routes[i], &a) < 0) continue; route.gateway = a.s_addr; if (route.plen) { route.rt_source = NM_IP_CONFIG_SOURCE_DHCP; route.metric = default_priority; nm_ip4_config_add_route (ip4_config, &route); str = nm_utils_inet4_ntop (route.network, buf); gw_str = nm_utils_inet4_ntop (route.gateway, NULL); LOG_LEASE (LOGD_DHCP4, " static route %s/%d gw %s", str, route.plen, gw_str); g_string_append_printf (l, "%s%s/%d %s", l->len ? " " : "", str, route.plen, gw_str); } else { if (!static_default_gateway) { static_default_gateway = TRUE; nm_ip4_config_set_gateway (ip4_config, route.gateway); str = nm_utils_inet4_ntop (route.gateway, NULL); LOG_LEASE (LOGD_DHCP4, " gateway %s", str); add_option (options, dhcp4_requests, SD_DHCP_OPTION_ROUTER, str); } } } if (l->len) add_option (options, dhcp4_requests, SD_DHCP_OPTION_CLASSLESS_STATIC_ROUTE, l->str); g_string_free (l, TRUE); } /* If the DHCP server returns both a Classless Static Routes option and a * Router option, the DHCP client MUST ignore the Router option [RFC 3442]. * Be more lenient and ignore the Router option only if Classless Static * Routes contain a default gateway (as other DHCP backends do). */ /* Gateway */ if (!static_default_gateway) { r = sd_dhcp_lease_get_router (lease, &tmp_addr); if (r == 0) { nm_ip4_config_set_gateway (ip4_config, tmp_addr.s_addr); str = nm_utils_inet4_ntop (tmp_addr.s_addr, NULL); LOG_LEASE (LOGD_DHCP4, " gateway %s", str); add_option (options, dhcp4_requests, SD_DHCP_OPTION_ROUTER, str); } } /* MTU */ r = sd_dhcp_lease_get_mtu (lease, &mtu); if (r == 0 && mtu) { nm_ip4_config_set_mtu (ip4_config, mtu, NM_IP_CONFIG_SOURCE_DHCP); add_option_u32 (options, dhcp4_requests, SD_DHCP_OPTION_INTERFACE_MTU, mtu); LOG_LEASE (LOGD_DHCP4, " mtu %u", mtu); } /* NTP servers */ num = sd_dhcp_lease_get_ntp (lease, &addr_list); if (num > 0) { l = g_string_sized_new (30); for (i = 0; i < num; i++) { str = nm_utils_inet4_ntop (addr_list[i].s_addr, buf); LOG_LEASE (LOGD_DHCP4, " ntp server '%s'", str); g_string_append_printf (l, "%s%s", l->len ? " " : "", str); } add_option (options, dhcp4_requests, SD_DHCP_OPTION_NTP_SERVER, l->str); g_string_free (l, TRUE); } r = sd_dhcp_lease_get_vendor_specific (lease, &data, &data_len); if (r >= 0) metered = !!memmem (data, data_len, "ANDROID_METERED", NM_STRLEN ("ANDROID_METERED")); nm_ip4_config_set_metered (ip4_config, metered); return ip4_config; }
static int dhcp_lease_lost(Link *link) { _cleanup_address_free_ Address *address = NULL; struct in_addr addr; struct in_addr netmask; struct in_addr gateway; unsigned prefixlen = 0; int r; assert(link); assert(link->dhcp_lease); log_link_warning(link, "DHCP lease lost"); if (link->network->dhcp_routes) { struct sd_dhcp_route *routes; int n, i; n = sd_dhcp_lease_get_routes(link->dhcp_lease, &routes); if (n >= 0) { for (i = 0; i < n; i++) { _cleanup_route_free_ Route *route = NULL; r = route_new_dynamic(&route, RTPROT_UNSPEC); if (r >= 0) { route->family = AF_INET; route->in_addr.in = routes[i].gw_addr; route->dst_addr.in = routes[i].dst_addr; route->dst_prefixlen = routes[i].dst_prefixlen; route_drop(route, link, &link_route_drop_handler); } } } } r = address_new_dynamic(&address); if (r >= 0) { r = sd_dhcp_lease_get_router(link->dhcp_lease, &gateway); if (r >= 0) { _cleanup_route_free_ Route *route_gw = NULL; _cleanup_route_free_ Route *route = NULL; r = route_new_dynamic(&route_gw, RTPROT_UNSPEC); if (r >= 0) { route_gw->family = AF_INET; route_gw->dst_addr.in = gateway; route_gw->dst_prefixlen = 32; route_gw->scope = RT_SCOPE_LINK; route_drop(route_gw, link, &link_route_drop_handler); } r = route_new_dynamic(&route, RTPROT_UNSPEC); if (r >= 0) { route->family = AF_INET; route->in_addr.in = gateway; route_drop(route, link, &link_route_drop_handler); } } r = sd_dhcp_lease_get_address(link->dhcp_lease, &addr); if (r >= 0) { r = sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask); if (r >= 0) prefixlen = in_addr_netmask_to_prefixlen(&netmask); address->family = AF_INET; address->in_addr.in = addr; address->prefixlen = prefixlen; address_drop(address, link, &link_address_drop_handler); } } if (link->network->dhcp_mtu) { uint16_t mtu; r = sd_dhcp_lease_get_mtu(link->dhcp_lease, &mtu); if (r >= 0 && link->original_mtu != mtu) { r = link_set_mtu(link, link->original_mtu); if (r < 0) { log_link_warning(link, "DHCP error: could not reset MTU"); link_enter_failed(link); return r; } } } if (link->network->dhcp_hostname) { const char *hostname = NULL; if (!link->network->hostname) r = sd_dhcp_lease_get_hostname(link->dhcp_lease, &hostname); else hostname = link->network->hostname; if (r >= 0 || hostname) { r = link_set_hostname(link, hostname); if (r < 0) log_link_error_errno(link, r, "Failed to set transient hostname to '%s': %m", hostname); } } link->dhcp_lease = sd_dhcp_lease_unref(link->dhcp_lease); link->dhcp4_configured = false; return 0; }
static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) { const struct in_addr *router; sd_dhcp_lease *lease; struct in_addr address; struct in_addr netmask; unsigned prefixlen; uint32_t lifetime = CACHE_INFO_INFINITY_LIFE_TIME; int r; assert(client); assert(link); r = sd_dhcp_client_get_lease(client, &lease); if (r < 0) return log_link_error_errno(link, r, "DHCP error: No lease: %m"); r = sd_dhcp_lease_get_address(lease, &address); if (r < 0) return log_link_error_errno(link, r, "DHCP error: No address: %m"); r = sd_dhcp_lease_get_netmask(lease, &netmask); if (r < 0) return log_link_error_errno(link, r, "DHCP error: No netmask: %m"); prefixlen = in4_addr_netmask_to_prefixlen(&netmask); r = sd_dhcp_lease_get_router(lease, &router); if (r < 0 && r != -ENODATA) return log_link_error_errno(link, r, "DHCP error: Could not get gateway: %m"); if (r > 0 && !in4_addr_is_null(&router[0])) log_struct(LOG_INFO, LOG_LINK_INTERFACE(link), LOG_LINK_MESSAGE(link, "DHCPv4 address %u.%u.%u.%u/%u via %u.%u.%u.%u", ADDRESS_FMT_VAL(address), prefixlen, ADDRESS_FMT_VAL(router[0])), "ADDRESS=%u.%u.%u.%u", ADDRESS_FMT_VAL(address), "PREFIXLEN=%u", prefixlen, "GATEWAY=%u.%u.%u.%u", ADDRESS_FMT_VAL(router[0])); else log_struct(LOG_INFO, LOG_LINK_INTERFACE(link), LOG_LINK_MESSAGE(link, "DHCPv4 address %u.%u.%u.%u/%u", ADDRESS_FMT_VAL(address), prefixlen), "ADDRESS=%u.%u.%u.%u", ADDRESS_FMT_VAL(address), "PREFIXLEN=%u", prefixlen); link->dhcp_lease = sd_dhcp_lease_ref(lease); link_dirty(link); if (link->network->dhcp_use_mtu) { uint16_t mtu; r = sd_dhcp_lease_get_mtu(lease, &mtu); if (r >= 0) { r = link_set_mtu(link, mtu, true); if (r < 0) log_link_error_errno(link, r, "Failed to set MTU to %" PRIu16 ": %m", mtu); } } if (link->network->dhcp_use_hostname) { const char *dhcpname = NULL; _cleanup_free_ char *hostname = NULL; if (link->network->dhcp_hostname) dhcpname = link->network->dhcp_hostname; else (void) sd_dhcp_lease_get_hostname(lease, &dhcpname); if (dhcpname) { r = shorten_overlong(dhcpname, &hostname); if (r < 0) log_link_warning_errno(link, r, "Unable to shorten overlong DHCP hostname '%s', ignoring: %m", dhcpname); if (r == 1) log_link_notice(link, "Overlong DHCP hostname received, shortened from '%s' to '%s'", dhcpname, hostname); } if (hostname) { r = manager_set_hostname(link->manager, hostname); if (r < 0) log_link_error_errno(link, r, "Failed to set transient hostname to '%s': %m", hostname); } } if (link->network->dhcp_use_timezone) { const char *tz = NULL; (void) sd_dhcp_lease_get_timezone(link->dhcp_lease, &tz); if (tz) { r = manager_set_timezone(link->manager, tz); if (r < 0) log_link_error_errno(link, r, "Failed to set timezone to '%s': %m", tz); } } if (!link->network->dhcp_critical) { r = sd_dhcp_lease_get_lifetime(link->dhcp_lease, &lifetime); if (r < 0) return log_link_warning_errno(link, r, "DHCP error: no lifetime: %m"); } r = dhcp4_update_address(link, &address, &netmask, lifetime); if (r < 0) { log_link_warning_errno(link, r, "Could not update IP address: %m"); link_enter_failed(link); return r; } return 0; }
static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) { sd_dhcp_lease *lease; struct in_addr address; struct in_addr netmask; struct in_addr gateway; unsigned prefixlen; uint32_t lifetime = CACHE_INFO_INFINITY_LIFE_TIME; int r; assert(client); assert(link); r = sd_dhcp_client_get_lease(client, &lease); if (r < 0) { log_link_warning(link, "DHCP error: no lease: %s", strerror(-r)); return r; } r = sd_dhcp_lease_get_address(lease, &address); if (r < 0) { log_link_warning(link, "DHCP error: no address: %s", strerror(-r)); return r; } r = sd_dhcp_lease_get_netmask(lease, &netmask); if (r < 0) { log_link_warning(link, "DHCP error: no netmask: %s", strerror(-r)); return r; } prefixlen = in_addr_netmask_to_prefixlen(&netmask); r = sd_dhcp_lease_get_router(lease, &gateway); if (r < 0 && r != -ENOENT) { log_link_warning(link, "DHCP error: could not get gateway: %s", strerror(-r)); return r; } if (r >= 0) log_link_struct(link, LOG_INFO, "MESSAGE=%-*s: DHCPv4 address %u.%u.%u.%u/%u via %u.%u.%u.%u", IFNAMSIZ, link->ifname, ADDRESS_FMT_VAL(address), prefixlen, ADDRESS_FMT_VAL(gateway), "ADDRESS=%u.%u.%u.%u", ADDRESS_FMT_VAL(address), "PREFIXLEN=%u", prefixlen, "GATEWAY=%u.%u.%u.%u", ADDRESS_FMT_VAL(gateway), NULL); else log_link_struct(link, LOG_INFO, "MESSAGE=%-*s: DHCPv4 address %u.%u.%u.%u/%u", IFNAMSIZ, link->ifname, ADDRESS_FMT_VAL(address), prefixlen, "ADDRESS=%u.%u.%u.%u", ADDRESS_FMT_VAL(address), "PREFIXLEN=%u", prefixlen, NULL); link->dhcp_lease = lease; if (link->network->dhcp_mtu) { uint16_t mtu; r = sd_dhcp_lease_get_mtu(lease, &mtu); if (r >= 0) { r = link_set_mtu(link, mtu); if (r < 0) log_link_error(link, "Failed to set MTU " "to %" PRIu16, mtu); } } if (link->network->dhcp_hostname) { const char *hostname; r = sd_dhcp_lease_get_hostname(lease, &hostname); if (r >= 0) { r = link_set_hostname(link, hostname); if (r < 0) log_link_error(link, "Failed to set transient hostname to '%s'", hostname); } } if (!link->network->dhcp_critical) { r = sd_dhcp_lease_get_lifetime(link->dhcp_lease, &lifetime); if (r < 0) { log_link_warning(link, "DHCP error: no lifetime: %s", strerror(-r)); return r; } } r = dhcp4_update_address(link, &address, &netmask, lifetime); if (r < 0) { log_link_warning(link, "could not update IP address: %s", strerror(-r)); link_enter_failed(link); return r; } return 0; }
static NMIP4Config * lease_to_ip4_config (const char *iface, int ifindex, sd_dhcp_lease *lease, GHashTable *options, guint32 default_priority, gboolean log_lease, GError **error) { NMIP4Config *ip4_config = NULL; struct in_addr tmp_addr; const struct in_addr *addr_list; char buf[INET_ADDRSTRLEN]; const char *str; guint32 lifetime = 0, i; NMPlatformIP4Address address; GString *l; struct sd_dhcp_route *routes; guint16 mtu; int r, num; guint64 end_time; const void *data; gsize data_len; gboolean metered = FALSE; g_return_val_if_fail (lease != NULL, NULL); ip4_config = nm_ip4_config_new (ifindex); /* Address */ sd_dhcp_lease_get_address (lease, &tmp_addr); memset (&address, 0, sizeof (address)); address.address = tmp_addr.s_addr; address.peer_address = tmp_addr.s_addr; str = nm_utils_inet4_ntop (tmp_addr.s_addr, NULL); LOG_LEASE (LOGD_DHCP4, " address %s", str); add_option (options, dhcp4_requests, DHCP_OPTION_IP_ADDRESS, str); /* Prefix/netmask */ sd_dhcp_lease_get_netmask (lease, &tmp_addr); address.plen = nm_utils_ip4_netmask_to_prefix (tmp_addr.s_addr); LOG_LEASE (LOGD_DHCP4, " plen %d", address.plen); add_option (options, dhcp4_requests, DHCP_OPTION_SUBNET_MASK, nm_utils_inet4_ntop (tmp_addr.s_addr, NULL)); /* Lease time */ sd_dhcp_lease_get_lifetime (lease, &lifetime); address.timestamp = nm_utils_get_monotonic_timestamp_s (); address.lifetime = address.preferred = lifetime; end_time = (guint64) time (NULL) + lifetime; LOG_LEASE (LOGD_DHCP4, " expires in %" G_GUINT32_FORMAT " seconds", lifetime); add_option_u64 (options, dhcp4_requests, DHCP_OPTION_IP_ADDRESS_LEASE_TIME, end_time); address.source = NM_IP_CONFIG_SOURCE_DHCP; nm_ip4_config_add_address (ip4_config, &address); /* Gateway */ r = sd_dhcp_lease_get_router (lease, &tmp_addr); if (r == 0) { nm_ip4_config_set_gateway (ip4_config, tmp_addr.s_addr); str = nm_utils_inet4_ntop (tmp_addr.s_addr, NULL); LOG_LEASE (LOGD_DHCP4, " gateway %s", str); add_option (options, dhcp4_requests, DHCP_OPTION_ROUTER, str); } /* DNS Servers */ num = sd_dhcp_lease_get_dns (lease, &addr_list); if (num > 0) { l = g_string_sized_new (30); for (i = 0; i < num; i++) { if (addr_list[i].s_addr) { nm_ip4_config_add_nameserver (ip4_config, addr_list[i].s_addr); str = nm_utils_inet4_ntop (addr_list[i].s_addr, NULL); LOG_LEASE (LOGD_DHCP4, " nameserver '%s'", str); g_string_append_printf (l, "%s%s", l->len ? " " : "", str); } } if (l->len) add_option (options, dhcp4_requests, DHCP_OPTION_DOMAIN_NAME_SERVER, l->str); g_string_free (l, TRUE); } /* Domain Name */ r = sd_dhcp_lease_get_domainname (lease, &str); if (r == 0) { /* Multiple domains sometimes stuffed into the option */ char **domains = g_strsplit (str, " ", 0); char **s; for (s = domains; *s; s++) { LOG_LEASE (LOGD_DHCP4, " domain name '%s'", *s); nm_ip4_config_add_domain (ip4_config, *s); } g_strfreev (domains); add_option (options, dhcp4_requests, DHCP_OPTION_DOMAIN_NAME, str); } /* Hostname */ r = sd_dhcp_lease_get_hostname (lease, &str); if (r == 0) { LOG_LEASE (LOGD_DHCP4, " hostname '%s'", str); add_option (options, dhcp4_requests, DHCP_OPTION_HOST_NAME, str); } /* Routes */ num = sd_dhcp_lease_get_routes (lease, &routes); if (num > 0) { l = g_string_sized_new (30); for (i = 0; i < num; i++) { NMPlatformIP4Route route; const char *gw_str; memset (&route, 0, sizeof (route)); route.network = routes[i].dst_addr.s_addr; route.plen = routes[i].dst_prefixlen; route.gateway = routes[i].gw_addr.s_addr; route.source = NM_IP_CONFIG_SOURCE_DHCP; route.metric = default_priority; nm_ip4_config_add_route (ip4_config, &route); str = nm_utils_inet4_ntop (route.network, buf); gw_str = nm_utils_inet4_ntop (route.gateway, NULL); LOG_LEASE (LOGD_DHCP4, " static route %s/%d gw %s", str, route.plen, gw_str); g_string_append_printf (l, "%s%s/%d %s", l->len ? " " : "", str, route.plen, gw_str); } add_option (options, dhcp4_requests, DHCP_OPTION_RFC3442_ROUTES, l->str); g_string_free (l, TRUE); } /* MTU */ r = sd_dhcp_lease_get_mtu (lease, &mtu); if (r == 0 && mtu) { nm_ip4_config_set_mtu (ip4_config, mtu, NM_IP_CONFIG_SOURCE_DHCP); add_option_u32 (options, dhcp4_requests, DHCP_OPTION_INTERFACE_MTU, mtu); LOG_LEASE (LOGD_DHCP4, " mtu %u", mtu); } /* NTP servers */ num = sd_dhcp_lease_get_ntp (lease, &addr_list); if (num > 0) { l = g_string_sized_new (30); for (i = 0; i < num; i++) { str = nm_utils_inet4_ntop (addr_list[i].s_addr, buf); LOG_LEASE (LOGD_DHCP4, " ntp server '%s'", str); g_string_append_printf (l, "%s%s", l->len ? " " : "", str); } add_option (options, dhcp4_requests, DHCP_OPTION_NTP_SERVER, l->str); g_string_free (l, TRUE); } r = sd_dhcp_lease_get_vendor_specific (lease, &data, &data_len); if (r >= 0) metered = !!memmem (data, data_len, "ANDROID_METERED", STRLEN ("ANDROID_METERED")); nm_ip4_config_set_metered (ip4_config, metered); return ip4_config; }