/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include "dns-domain.h" #include "ip-protocol-list.h" #include "netif-util.h" #include "networkd-address.h" #include "networkd-json.h" #include "networkd-link.h" #include "networkd-manager.h" #include "networkd-neighbor.h" #include "networkd-nexthop.h" #include "networkd-network.h" #include "networkd-route-util.h" #include "networkd-route.h" #include "networkd-routing-policy-rule.h" #include "sort-util.h" #include "user-util.h" #include "wifi-util.h" static int address_build_json(Address *address, JsonVariant **ret) { _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; _cleanup_free_ char *scope = NULL, *flags = NULL, *state = NULL; int r; assert(address); assert(ret); r = route_scope_to_string_alloc(address->scope, &scope); if (r < 0) return r; r = address_flags_to_string_alloc(address->flags, address->family, &flags); if (r < 0) return r; r = network_config_state_to_string_alloc(address->state, &state); if (r < 0) return r; r = json_build(&v, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_INTEGER("Family", address->family), JSON_BUILD_PAIR_IN_ADDR("Address", &address->in_addr, address->family), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("Peer", &address->in_addr_peer, address->family), JSON_BUILD_PAIR_IN4_ADDR_NON_NULL("Broadcast", &address->broadcast), JSON_BUILD_PAIR_UNSIGNED("PrefixLength", address->prefixlen), JSON_BUILD_PAIR_UNSIGNED("Scope", address->scope), JSON_BUILD_PAIR_STRING("ScopeString", scope), JSON_BUILD_PAIR_UNSIGNED("Flags", address->flags), JSON_BUILD_PAIR_STRING("FlagsString", flags), JSON_BUILD_PAIR_STRING_NON_EMPTY("Label", address->label), JSON_BUILD_PAIR_FINITE_USEC("PreferredLifetimeUsec", address->lifetime_preferred_usec), JSON_BUILD_PAIR_FINITE_USEC("ValidLifetimeUsec", address->lifetime_valid_usec), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(address->source)), JSON_BUILD_PAIR_STRING("ConfigState", state), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("ConfigProvider", &address->provider, address->family))); if (r < 0) return r; *ret = TAKE_PTR(v); return 0; } static int addresses_build_json(Set *addresses, JsonVariant **ret) { JsonVariant **elements; Address *address; size_t n = 0; int r; assert(ret); if (set_isempty(addresses)) { *ret = NULL; return 0; } elements = new(JsonVariant*, set_size(addresses)); if (!elements) return -ENOMEM; SET_FOREACH(address, addresses) { r = address_build_json(address, elements + n); if (r < 0) goto finalize; n++; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("Addresses", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } static int neighbor_build_json(Neighbor *n, JsonVariant **ret) { _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; _cleanup_free_ char *state = NULL; int r; assert(n); assert(ret); r = network_config_state_to_string_alloc(n->state, &state); if (r < 0) return r; r = json_build(&v, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_INTEGER("Family", n->family), JSON_BUILD_PAIR_IN_ADDR("Destination", &n->in_addr, n->family), JSON_BUILD_PAIR_HW_ADDR("LinkLayerAddress", &n->ll_addr), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(n->source)), JSON_BUILD_PAIR_STRING("ConfigState", state))); if (r < 0) return r; *ret = TAKE_PTR(v); return 0; } static int neighbors_build_json(Set *neighbors, JsonVariant **ret) { JsonVariant **elements; Neighbor *neighbor; size_t n = 0; int r; assert(ret); if (set_isempty(neighbors)) { *ret = NULL; return 0; } elements = new(JsonVariant*, set_size(neighbors)); if (!elements) return -ENOMEM; SET_FOREACH(neighbor, neighbors) { r = neighbor_build_json(neighbor, elements + n); if (r < 0) goto finalize; n++; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("Neighbors", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } static int nexthop_group_build_json(NextHop *nexthop, JsonVariant **ret) { JsonVariant **elements; struct nexthop_grp *g; size_t n = 0; int r; assert(nexthop); assert(ret); if (hashmap_isempty(nexthop->group)) { *ret = NULL; return 0; } elements = new(JsonVariant*, hashmap_size(nexthop->group)); if (!elements) return -ENOMEM; HASHMAP_FOREACH(g, nexthop->group) { r = json_build(elements + n, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_UNSIGNED("ID", g->id), JSON_BUILD_PAIR_UNSIGNED("Weight", g->weight+1))); if (r < 0) goto failure; n++; } r = json_variant_new_array(ret, elements, n); failure: json_variant_unref_many(elements, n); free(elements); return r; } static int nexthop_build_json(NextHop *n, JsonVariant **ret) { _cleanup_(json_variant_unrefp) JsonVariant *v = NULL, *group = NULL; _cleanup_free_ char *flags = NULL, *protocol = NULL, *state = NULL; int r; assert(n); assert(ret); r = route_flags_to_string_alloc(n->flags, &flags); if (r < 0) return r; r = route_protocol_to_string_alloc(n->protocol, &protocol); if (r < 0) return r; r = network_config_state_to_string_alloc(n->state, &state); if (r < 0) return r; r = nexthop_group_build_json(n, &group); if (r < 0) return r; r = json_build(&v, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_UNSIGNED("ID", n->id), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("Gateway", &n->gw, n->family), JSON_BUILD_PAIR_UNSIGNED("Flags", n->flags), JSON_BUILD_PAIR_STRING("FlagsString", strempty(flags)), JSON_BUILD_PAIR_UNSIGNED("Protocol", n->protocol), JSON_BUILD_PAIR_STRING("ProtocolString", protocol), JSON_BUILD_PAIR_BOOLEAN("Blackhole", n->blackhole), JSON_BUILD_PAIR_VARIANT_NON_NULL("Group", group), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(n->source)), JSON_BUILD_PAIR_STRING("ConfigState", state))); if (r < 0) return r; *ret = TAKE_PTR(v); return 0; } static int nexthops_build_json(Set *nexthops, JsonVariant **ret) { JsonVariant **elements; NextHop *nexthop; size_t n = 0; int r; assert(ret); if (set_isempty(nexthops)) { *ret = NULL; return 0; } elements = new(JsonVariant*, set_size(nexthops)); if (!elements) return -ENOMEM; SET_FOREACH(nexthop, nexthops) { r = nexthop_build_json(nexthop, elements + n); if (r < 0) goto finalize; n++; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("NextHops", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } static int route_build_json(Route *route, JsonVariant **ret) { _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; _cleanup_free_ char *scope = NULL, *protocol = NULL, *table = NULL, *flags = NULL, *state = NULL; Manager *manager; int r; assert(route); assert(ret); manager = route->link ? route->link->manager : route->manager; assert(manager); r = route_scope_to_string_alloc(route->scope, &scope); if (r < 0) return r; r = route_protocol_to_string_alloc(route->protocol, &protocol); if (r < 0) return r; r = manager_get_route_table_to_string(manager, route->table, &table); if (r < 0) return r; r = route_flags_to_string_alloc(route->flags, &flags); if (r < 0) return r; r = network_config_state_to_string_alloc(route->state, &state); if (r < 0) return r; r = json_build(&v, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_INTEGER("Family", route->family), JSON_BUILD_PAIR_IN_ADDR("Destination", &route->dst, route->family), JSON_BUILD_PAIR_UNSIGNED("DestinationPrefixLength", route->dst_prefixlen), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("Gateway", &route->gw, route->gw_family), JSON_BUILD_PAIR_CONDITION(route->src_prefixlen > 0, "Source", JSON_BUILD_IN_ADDR(&route->src, route->family)), JSON_BUILD_PAIR_UNSIGNED_NON_ZERO("SourcePrefixLength", route->src_prefixlen), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("PreferredSource", &route->prefsrc, route->family), JSON_BUILD_PAIR_UNSIGNED("Scope", route->scope), JSON_BUILD_PAIR_STRING("ScopeString", scope), JSON_BUILD_PAIR_UNSIGNED("Protocol", route->protocol), JSON_BUILD_PAIR_STRING("ProtocolString", protocol), JSON_BUILD_PAIR_UNSIGNED("Type", route->type), JSON_BUILD_PAIR_STRING("TypeString", route_type_to_string(route->type)), JSON_BUILD_PAIR_UNSIGNED("Priority", route->priority), JSON_BUILD_PAIR_UNSIGNED("Table", route->table), JSON_BUILD_PAIR_STRING("TableString", table), JSON_BUILD_PAIR_UNSIGNED_NON_ZERO("MTU", route->mtu), JSON_BUILD_PAIR_UNSIGNED("Preference", route->pref), JSON_BUILD_PAIR_UNSIGNED("Flags", route->flags), JSON_BUILD_PAIR_STRING("FlagsString", strempty(flags)), JSON_BUILD_PAIR_FINITE_USEC("LifetimeUSec", route->lifetime_usec), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(route->source)), JSON_BUILD_PAIR_STRING("ConfigState", state), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("ConfigProvider", &route->provider, route->family))); if (r < 0) return r; *ret = TAKE_PTR(v); return 0; } static int routes_build_json(Set *routes, JsonVariant **ret) { JsonVariant **elements; Route *route; size_t n = 0; int r; assert(ret); if (set_isempty(routes)) { *ret = NULL; return 0; } elements = new(JsonVariant*, set_size(routes)); if (!elements) return -ENOMEM; SET_FOREACH(route, routes) { r = route_build_json(route, elements + n); if (r < 0) goto finalize; n++; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("Routes", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } static int routing_policy_rule_build_json(RoutingPolicyRule *rule, JsonVariant **ret) { _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; _cleanup_free_ char *table = NULL, *protocol = NULL, *state = NULL; int r; assert(rule); assert(rule->manager); assert(ret); r = manager_get_route_table_to_string(rule->manager, rule->table, &table); if (r < 0 && r != -EINVAL) return r; r = route_protocol_to_string_alloc(rule->protocol, &protocol); if (r < 0) return r; r = network_config_state_to_string_alloc(rule->state, &state); if (r < 0) return r; r = json_build(&v, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_INTEGER("Family", rule->family), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("FromPrefix", &rule->from, rule->family), JSON_BUILD_PAIR_CONDITION(in_addr_is_set(rule->family, &rule->from), "FromPrefixLength", JSON_BUILD_UNSIGNED(rule->from_prefixlen)), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("ToPrefix", &rule->to, rule->family), JSON_BUILD_PAIR_CONDITION(in_addr_is_set(rule->family, &rule->to), "ToPrefixLength", JSON_BUILD_UNSIGNED(rule->to_prefixlen)), JSON_BUILD_PAIR_UNSIGNED("Protocol", rule->protocol), JSON_BUILD_PAIR_STRING("ProtocolString", protocol), JSON_BUILD_PAIR_UNSIGNED("TOS", rule->tos), JSON_BUILD_PAIR_UNSIGNED("Type", rule->type), JSON_BUILD_PAIR_STRING("TypeString", fr_act_type_full_to_string(rule->type)), JSON_BUILD_PAIR_UNSIGNED("IPProtocol", rule->ipproto), JSON_BUILD_PAIR_STRING("IPProtocolString", ip_protocol_to_name(rule->ipproto)), JSON_BUILD_PAIR_UNSIGNED("Priority", rule->priority), JSON_BUILD_PAIR_UNSIGNED("FirewallMark", rule->fwmark), JSON_BUILD_PAIR_UNSIGNED("FirewallMask", rule->fwmask), JSON_BUILD_PAIR_UNSIGNED_NON_ZERO("Table", rule->table), JSON_BUILD_PAIR_STRING_NON_EMPTY("TableString", table), JSON_BUILD_PAIR_BOOLEAN("Invert", rule->invert_rule), JSON_BUILD_PAIR_CONDITION(rule->suppress_prefixlen >= 0, "SuppressPrefixLength", JSON_BUILD_UNSIGNED(rule->suppress_prefixlen)), JSON_BUILD_PAIR_CONDITION(rule->suppress_ifgroup >= 0, "SuppressInterfaceGroup", JSON_BUILD_UNSIGNED(rule->suppress_ifgroup)), JSON_BUILD_PAIR_CONDITION(rule->sport.start != 0 || rule->sport.end != 0, "SourcePort", JSON_BUILD_ARRAY(JSON_BUILD_UNSIGNED(rule->sport.start), JSON_BUILD_UNSIGNED(rule->sport.end))), JSON_BUILD_PAIR_CONDITION(rule->dport.start != 0 || rule->dport.end != 0, "DestinationPort", JSON_BUILD_ARRAY(JSON_BUILD_UNSIGNED(rule->dport.start), JSON_BUILD_UNSIGNED(rule->dport.end))), JSON_BUILD_PAIR_CONDITION(rule->uid_range.start != UID_INVALID && rule->uid_range.end != UID_INVALID, "User", JSON_BUILD_ARRAY(JSON_BUILD_UNSIGNED(rule->uid_range.start), JSON_BUILD_UNSIGNED(rule->uid_range.end))), JSON_BUILD_PAIR_STRING_NON_EMPTY("IncomingInterface", rule->iif), JSON_BUILD_PAIR_STRING_NON_EMPTY("OutgoingInterface", rule->oif), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(rule->source)), JSON_BUILD_PAIR_STRING("ConfigState", state))); if (r < 0) return r; *ret = TAKE_PTR(v); return 0; } static int routing_policy_rules_build_json(Set *rules, JsonVariant **ret) { JsonVariant **elements; RoutingPolicyRule *rule; size_t n = 0; int r; assert(ret); if (set_isempty(rules)) { *ret = NULL; return 0; } elements = new(JsonVariant*, set_size(rules)); if (!elements) return -ENOMEM; SET_FOREACH(rule, rules) { r = routing_policy_rule_build_json(rule, elements + n); if (r < 0) goto finalize; n++; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("RoutingPolicyRules", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } static int network_build_json(Network *network, JsonVariant **ret) { assert(ret); if (!network) { *ret = NULL; return 0; } return json_build(ret, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_STRING("NetworkFile", network->filename), JSON_BUILD_PAIR_BOOLEAN("RequiredForOnline", network->required_for_online), JSON_BUILD_PAIR("RequiredOperationalStateForOnline", JSON_BUILD_ARRAY(JSON_BUILD_STRING(link_operstate_to_string(network->required_operstate_for_online.min)), JSON_BUILD_STRING(link_operstate_to_string(network->required_operstate_for_online.max)))), JSON_BUILD_PAIR_STRING("RequiredFamilyForOnline", link_required_address_family_to_string(network->required_family_for_online)), JSON_BUILD_PAIR_STRING("ActivationPolicy", activation_policy_to_string(network->activation_policy)))); } static int device_build_json(sd_device *device, JsonVariant **ret) { const char *link = NULL, *path = NULL, *vendor = NULL, *model = NULL; assert(ret); if (!device) { *ret = NULL; return 0; } (void) sd_device_get_property_value(device, "ID_NET_LINK_FILE", &link); (void) sd_device_get_property_value(device, "ID_PATH", &path); if (sd_device_get_property_value(device, "ID_VENDOR_FROM_DATABASE", &vendor) < 0) (void) sd_device_get_property_value(device, "ID_VENDOR", &vendor); if (sd_device_get_property_value(device, "ID_MODEL_FROM_DATABASE", &model) < 0) (void) sd_device_get_property_value(device, "ID_MODEL", &model); return json_build(ret, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_STRING_NON_EMPTY("LinkFile", link), JSON_BUILD_PAIR_STRING_NON_EMPTY("Path", path), JSON_BUILD_PAIR_STRING_NON_EMPTY("Vendor", vendor), JSON_BUILD_PAIR_STRING_NON_EMPTY("Model", model))); } static int dns_build_json_one(Link *link, const struct in_addr_full *a, NetworkConfigSource s, const union in_addr_union *p, JsonVariant **ret) { _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; int r; assert(link); assert(a); assert(ret); if (a->ifindex != 0 && a->ifindex != link->ifindex) { *ret = NULL; return 0; } r = json_build(&v, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_INTEGER("Family", a->family), JSON_BUILD_PAIR_IN_ADDR("Address", &a->address, a->family), JSON_BUILD_PAIR_UNSIGNED_NON_ZERO("Port", a->port), JSON_BUILD_PAIR_CONDITION(a->ifindex != 0, "InterfaceIndex", JSON_BUILD_INTEGER(a->ifindex)), JSON_BUILD_PAIR_STRING_NON_EMPTY("ServerName", a->server_name), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(s)), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("ConfigProvider", p, a->family))); if (r < 0) return r; *ret = TAKE_PTR(v); return 1; } static int dns_build_json(Link *link, JsonVariant **ret) { JsonVariant **elements = NULL; size_t n = 0; int r; assert(link); assert(ret); if (!link->network) { *ret = NULL; return 0; } if (link->n_dns != UINT_MAX) { for (unsigned i = 0; i < link->n_dns; i++) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = dns_build_json_one(link, link->dns[i], NETWORK_CONFIG_SOURCE_RUNTIME, NULL, elements + n); if (r < 0) goto finalize; if (r > 0) n++; } } else { for (unsigned i = 0; i < link->network->n_dns; i++) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = dns_build_json_one(link, link->network->dns[i], NETWORK_CONFIG_SOURCE_STATIC, NULL, elements + n); if (r < 0) goto finalize; if (r > 0) n++; } if (link->dhcp_lease && link->network->dhcp_use_dns) { const struct in_addr *dns; union in_addr_union s; int n_dns; r = sd_dhcp_lease_get_server_identifier(link->dhcp_lease, &s.in); if (r < 0) goto finalize; n_dns = sd_dhcp_lease_get_dns(link->dhcp_lease, &dns); for (int i = 0; i < n_dns; i++) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = dns_build_json_one(link, &(struct in_addr_full) { .family = AF_INET, .address.in = dns[i], }, NETWORK_CONFIG_SOURCE_DHCP4, &s, elements + n); if (r < 0) goto finalize; if (r > 0) n++; } } if (link->dhcp6_lease && link->network->dhcp6_use_dns) { const struct in6_addr *dns; union in_addr_union s; int n_dns; r = sd_dhcp6_lease_get_server_address(link->dhcp6_lease, &s.in6); if (r < 0) goto finalize; n_dns = sd_dhcp6_lease_get_dns(link->dhcp6_lease, &dns); for (int i = 0; i < n_dns; i++) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = dns_build_json_one(link, &(struct in_addr_full) { .family = AF_INET6, .address.in6 = dns[i], }, NETWORK_CONFIG_SOURCE_DHCP6, &s, elements + n); if (r < 0) goto finalize; if (r > 0) n++; } } if (link->network->ipv6_accept_ra_use_dns) { NDiscRDNSS *a; SET_FOREACH(a, link->ndisc_rdnss) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = dns_build_json_one(link, &(struct in_addr_full) { .family = AF_INET6, .address.in6 = a->address, }, NETWORK_CONFIG_SOURCE_NDISC, &(union in_addr_union) { .in6 = a->router }, elements + n); if (r < 0) goto finalize; if (r > 0) n++; } } } if (n == 0) { *ret = NULL; r = 0; goto finalize; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("DNS", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } static int server_build_json_one_addr(int family, const union in_addr_union *a, NetworkConfigSource s, const union in_addr_union *p, JsonVariant **ret) { assert(IN_SET(family, AF_INET, AF_INET6)); assert(a); assert(ret); return json_build(ret, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_INTEGER("Family", family), JSON_BUILD_PAIR_IN_ADDR("Address", a, family), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(s)), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("ConfigProvider", p, family))); } static int server_build_json_one_fqdn(int family, const char *fqdn, NetworkConfigSource s, const union in_addr_union *p, JsonVariant **ret) { assert(IN_SET(family, AF_UNSPEC, AF_INET, AF_INET6)); assert(fqdn); assert(ret); return json_build(ret, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_STRING("Server", fqdn), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(s)), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("ConfigProvider", p, family))); } static int server_build_json_one_string(const char *str, NetworkConfigSource s, JsonVariant **ret) { union in_addr_union a; int family; assert(str); assert(ret); if (in_addr_from_string_auto(str, &family, &a) >= 0) return server_build_json_one_addr(family, &a, s, NULL, ret); return server_build_json_one_fqdn(AF_UNSPEC, str, s, NULL, ret); } static int ntp_build_json(Link *link, JsonVariant **ret) { JsonVariant **elements = NULL; size_t n = 0; int r; assert(link); assert(ret); if (!link->network) { *ret = NULL; return 0; } STRV_FOREACH(p, link->ntp ?: link->network->ntp) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = server_build_json_one_string(*p, NETWORK_CONFIG_SOURCE_RUNTIME, elements + n); if (r < 0) goto finalize; n++; } if (!link->ntp) { if (link->dhcp_lease && link->network->dhcp_use_ntp) { const struct in_addr *ntp; union in_addr_union s; int n_ntp; r = sd_dhcp_lease_get_server_identifier(link->dhcp_lease, &s.in); if (r < 0) goto finalize; n_ntp = sd_dhcp_lease_get_ntp(link->dhcp_lease, &ntp); for (int i = 0; i < n_ntp; i++) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = server_build_json_one_addr(AF_INET, &(union in_addr_union) { .in = ntp[i], }, NETWORK_CONFIG_SOURCE_DHCP4, &s, elements + n); if (r < 0) goto finalize; n++; } } if (link->dhcp6_lease && link->network->dhcp6_use_ntp) { const struct in6_addr *ntp_addr; union in_addr_union s; char **ntp_fqdn; int n_ntp; r = sd_dhcp6_lease_get_server_address(link->dhcp6_lease, &s.in6); if (r < 0) goto finalize; n_ntp = sd_dhcp6_lease_get_ntp_addrs(link->dhcp6_lease, &ntp_addr); for (int i = 0; i < n_ntp; i++) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = server_build_json_one_addr(AF_INET6, &(union in_addr_union) { .in6 = ntp_addr[i], }, NETWORK_CONFIG_SOURCE_DHCP6, &s, elements + n); if (r < 0) goto finalize; n++; } n_ntp = sd_dhcp6_lease_get_ntp_fqdn(link->dhcp6_lease, &ntp_fqdn); for (int i = 0; i < n_ntp; i++) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = server_build_json_one_fqdn(AF_INET6, ntp_fqdn[i], NETWORK_CONFIG_SOURCE_DHCP6, &s, elements + n); if (r < 0) goto finalize; n++; } } } if (n == 0) { *ret = NULL; return 0; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("NTP", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } static int sip_build_json(Link *link, JsonVariant **ret) { const struct in_addr *sip; JsonVariant **elements; union in_addr_union s; size_t n = 0; int n_sip, r; assert(link); assert(ret); if (!link->network || !link->network->dhcp_use_sip || !link->dhcp_lease) { *ret = NULL; return 0; } n_sip = sd_dhcp_lease_get_sip(link->dhcp_lease, &sip); if (n_sip <= 0) { *ret = NULL; return 0; } r = sd_dhcp_lease_get_server_identifier(link->dhcp_lease, &s.in); if (r < 0) return r; elements = new(JsonVariant*, n_sip); if (!elements) return -ENOMEM; for (int i = 0; i < n_sip; i++) { r = server_build_json_one_addr(AF_INET, &(union in_addr_union) { .in = sip[i], }, NETWORK_CONFIG_SOURCE_DHCP4, &s, elements + n); if (r < 0) goto finalize; n++; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("SIP", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } static int domain_build_json(int family, const char *domain, NetworkConfigSource s, const union in_addr_union *p, JsonVariant **ret) { assert(IN_SET(family, AF_UNSPEC, AF_INET, AF_INET6)); assert(domain); assert(ret); return json_build(ret, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_STRING("Domain", domain), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(s)), JSON_BUILD_PAIR_IN_ADDR_NON_NULL("ConfigProvider", p, family))); } static int domains_build_json(Link *link, bool is_route, JsonVariant **ret) { OrderedSet *link_domains, *network_domains; JsonVariant **elements = NULL; DHCPUseDomains use_domains; union in_addr_union s; char **domains; const char *domain; size_t n = 0; int r; assert(link); assert(ret); if (!link->network) { *ret = NULL; return 0; } link_domains = is_route ? link->route_domains : link->search_domains; network_domains = is_route ? link->network->route_domains : link->network->search_domains; use_domains = is_route ? DHCP_USE_DOMAINS_ROUTE : DHCP_USE_DOMAINS_YES; ORDERED_SET_FOREACH(domain, link_domains ?: network_domains) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = domain_build_json(AF_UNSPEC, domain, link_domains ? NETWORK_CONFIG_SOURCE_RUNTIME : NETWORK_CONFIG_SOURCE_STATIC, NULL, elements + n); if (r < 0) goto finalize; n++; } if (!link_domains) { if (link->dhcp_lease && link->network->dhcp_use_domains == use_domains) { r = sd_dhcp_lease_get_server_identifier(link->dhcp_lease, &s.in); if (r < 0) goto finalize; if (sd_dhcp_lease_get_domainname(link->dhcp_lease, &domain) >= 0) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = domain_build_json(AF_INET, domain, NETWORK_CONFIG_SOURCE_DHCP4, &s, elements + n); if (r < 0) goto finalize; n++; } if (sd_dhcp_lease_get_search_domains(link->dhcp_lease, &domains) >= 0) { STRV_FOREACH(p, domains) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = domain_build_json(AF_INET, *p, NETWORK_CONFIG_SOURCE_DHCP4, &s, elements + n); if (r < 0) goto finalize; n++; } } } if (link->dhcp6_lease && link->network->dhcp6_use_domains == use_domains) { r = sd_dhcp6_lease_get_server_address(link->dhcp6_lease, &s.in6); if (r < 0) goto finalize; if (sd_dhcp6_lease_get_domains(link->dhcp6_lease, &domains) >= 0) { STRV_FOREACH(p, domains) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = domain_build_json(AF_INET6, *p, NETWORK_CONFIG_SOURCE_DHCP6, &s, elements + n); if (r < 0) goto finalize; n++; } } } if (link->network->ipv6_accept_ra_use_domains == use_domains) { NDiscDNSSL *a; SET_FOREACH(a, link->ndisc_dnssl) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = domain_build_json(AF_INET6, NDISC_DNSSL_DOMAIN(a), NETWORK_CONFIG_SOURCE_NDISC, &(union in_addr_union) { .in6 = a->router }, elements + n); if (r < 0) goto finalize; n++; } } } if (n == 0) { *ret = NULL; return 0; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR(is_route ? "RouteDomains" : "SearchDomains", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } static int nta_build_json(const char *nta, NetworkConfigSource s, JsonVariant **ret) { assert(nta); assert(ret); return json_build(ret, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_STRING("DNSSECNegativeTrustAnchor", nta), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(s)))); } static int ntas_build_json(Link *link, JsonVariant **ret) { JsonVariant **elements = NULL; const char *nta; size_t n = 0; int r; assert(link); assert(ret); if (!link->network) { *ret = NULL; return 0; } SET_FOREACH(nta, link->dnssec_negative_trust_anchors ?: link->network->dnssec_negative_trust_anchors) { if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = nta_build_json(nta, link->dnssec_negative_trust_anchors ? NETWORK_CONFIG_SOURCE_RUNTIME : NETWORK_CONFIG_SOURCE_STATIC, elements + n); if (r < 0) goto finalize; n++; } if (n == 0) { *ret = NULL; return 0; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("DNSSECNegativeTrustAnchors", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } static int dns_misc_build_json(Link *link, JsonVariant **ret) { JsonVariant **elements = NULL; ResolveSupport resolve_support; NetworkConfigSource source; DnsOverTlsMode mode; size_t n = 0; int t, r; assert(link); assert(ret); if (!link->network) { *ret = NULL; return 0; } resolve_support = link->llmnr >= 0 ? link->llmnr : link->network->llmnr; if (resolve_support >= 0) { source = link->llmnr >= 0 ? NETWORK_CONFIG_SOURCE_RUNTIME : NETWORK_CONFIG_SOURCE_STATIC; if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = json_build(elements + n, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_STRING("LLMNR", resolve_support_to_string(resolve_support)), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(source)))); if (r < 0) goto finalize; n++; } resolve_support = link->mdns >= 0 ? link->mdns : link->network->mdns; if (resolve_support >= 0) { source = link->mdns >= 0 ? NETWORK_CONFIG_SOURCE_RUNTIME : NETWORK_CONFIG_SOURCE_STATIC; if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = json_build(elements + n, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_STRING("MDNS", resolve_support_to_string(resolve_support)), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(source)))); if (r < 0) goto finalize; n++; } t = link->dns_default_route >= 0 ? link->dns_default_route : link->network->dns_default_route; if (t >= 0) { source = link->dns_default_route >= 0 ? NETWORK_CONFIG_SOURCE_RUNTIME : NETWORK_CONFIG_SOURCE_STATIC; if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = json_build(elements + n, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_BOOLEAN("DNSDefaultRoute", t), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(source)))); if (r < 0) goto finalize; n++; } mode = link->dns_over_tls_mode >= 0 ? link->dns_over_tls_mode : link->network->dns_over_tls_mode; if (mode >= 0) { source = link->dns_over_tls_mode >= 0 ? NETWORK_CONFIG_SOURCE_RUNTIME : NETWORK_CONFIG_SOURCE_STATIC; if (!GREEDY_REALLOC(elements, n + 1)) { r = -ENOMEM; goto finalize; } r = json_build(elements + n, JSON_BUILD_OBJECT( JSON_BUILD_PAIR_STRING("DNSOverTLS", dns_over_tls_mode_to_string(mode)), JSON_BUILD_PAIR_STRING("ConfigSource", network_config_source_to_string(source)))); if (r < 0) goto finalize; n++; } r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("DNSSettings", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } int link_build_json(Link *link, JsonVariant **ret) { _cleanup_(json_variant_unrefp) JsonVariant *v = NULL, *w = NULL; _cleanup_free_ char *type = NULL, *flags = NULL; int r; assert(link); assert(ret); r = net_get_type_string(link->dev, link->iftype, &type); if (r == -ENOMEM) return r; r = link_flags_to_string_alloc(link->flags, &flags); if (r < 0) return r; r = json_build(&v, JSON_BUILD_OBJECT( /* basic information */ JSON_BUILD_PAIR_INTEGER("Index", link->ifindex), JSON_BUILD_PAIR_STRING("Name", link->ifname), JSON_BUILD_PAIR_STRV_NON_EMPTY("AlternativeNames", link->alternative_names), JSON_BUILD_PAIR_CONDITION(link->master_ifindex > 0, "MasterInterfaceIndex", JSON_BUILD_INTEGER(link->master_ifindex)), JSON_BUILD_PAIR_STRING_NON_EMPTY("Kind", link->kind), JSON_BUILD_PAIR_STRING("Type", type), JSON_BUILD_PAIR_STRING_NON_EMPTY("Driver", link->driver), JSON_BUILD_PAIR_UNSIGNED("Flags", link->flags), JSON_BUILD_PAIR_STRING("FlagsString", flags), JSON_BUILD_PAIR_UNSIGNED("KernelOperationalState", link->kernel_operstate), JSON_BUILD_PAIR_STRING("KernelOperationalStateString", kernel_operstate_to_string(link->kernel_operstate)), JSON_BUILD_PAIR_UNSIGNED("MTU", link->mtu), JSON_BUILD_PAIR_UNSIGNED("MinimumMTU", link->min_mtu), JSON_BUILD_PAIR_UNSIGNED("MaximumMTU", link->max_mtu), JSON_BUILD_PAIR_HW_ADDR_NON_NULL("HardwareAddress", &link->hw_addr), JSON_BUILD_PAIR_HW_ADDR_NON_NULL("PermanentHardwareAddress", &link->permanent_hw_addr), JSON_BUILD_PAIR_HW_ADDR_NON_NULL("BroadcastAddress", &link->bcast_addr), JSON_BUILD_PAIR_IN6_ADDR_NON_NULL("IPv6LinkLocalAddress", &link->ipv6ll_address), /* wlan information */ JSON_BUILD_PAIR_CONDITION(link->wlan_iftype > 0, "WirelessLanInterfaceType", JSON_BUILD_UNSIGNED(link->wlan_iftype)), JSON_BUILD_PAIR_CONDITION(link->wlan_iftype > 0, "WirelessLanInterfaceTypeString", JSON_BUILD_STRING(nl80211_iftype_to_string(link->wlan_iftype))), JSON_BUILD_PAIR_STRING_NON_EMPTY("SSID", link->ssid), JSON_BUILD_PAIR_ETHER_ADDR_NON_NULL("BSSID", &link->bssid), /* link state */ JSON_BUILD_PAIR_STRING("AdministrativeState", link_state_to_string(link->state)), JSON_BUILD_PAIR_STRING("OperationalState", link_operstate_to_string(link->operstate)), JSON_BUILD_PAIR_STRING("CarrierState", link_carrier_state_to_string(link->carrier_state)), JSON_BUILD_PAIR_STRING("AddressState", link_address_state_to_string(link->address_state)), JSON_BUILD_PAIR_STRING("IPv4AddressState", link_address_state_to_string(link->ipv4_address_state)), JSON_BUILD_PAIR_STRING("IPv6AddressState", link_address_state_to_string(link->ipv6_address_state)), JSON_BUILD_PAIR_STRING("OnlineState", link_online_state_to_string(link->online_state)))); if (r < 0) return r; r = network_build_json(link->network, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = device_build_json(link->dev, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = dns_build_json(link, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = ntp_build_json(link, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = sip_build_json(link, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = domains_build_json(link, /* is_route = */ false, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = domains_build_json(link, /* is_route = */ true, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = ntas_build_json(link, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = dns_misc_build_json(link, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = addresses_build_json(link->addresses, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = neighbors_build_json(link->neighbors, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = nexthops_build_json(link->nexthops, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = routes_build_json(link->routes, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; *ret = TAKE_PTR(v); return 0; } static int link_json_compare(JsonVariant * const *a, JsonVariant * const *b) { int64_t index_a, index_b; assert(a && *a); assert(b && *b); index_a = json_variant_integer(json_variant_by_key(*a, "Index")); index_b = json_variant_integer(json_variant_by_key(*b, "Index")); return CMP(index_a, index_b); } static int links_build_json(Manager *manager, JsonVariant **ret) { JsonVariant **elements; Link *link; size_t n = 0; int r; assert(manager); assert(ret); elements = new(JsonVariant*, hashmap_size(manager->links_by_index)); if (!elements) return -ENOMEM; HASHMAP_FOREACH(link, manager->links_by_index) { r = link_build_json(link, elements + n); if (r < 0) goto finalize; n++; } typesafe_qsort(elements, n, link_json_compare); r = json_build(ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("Interfaces", JSON_BUILD_VARIANT_ARRAY(elements, n)))); finalize: json_variant_unref_many(elements, n); free(elements); return r; } int manager_build_json(Manager *manager, JsonVariant **ret) { _cleanup_(json_variant_unrefp) JsonVariant *v = NULL, *w = NULL; int r; assert(manager); assert(ret); r = links_build_json(manager, &v); if (r < 0) return r; r = nexthops_build_json(manager->nexthops, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = routes_build_json(manager->routes, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; w = json_variant_unref(w); r = routing_policy_rules_build_json(manager->rules, &w); if (r < 0) return r; r = json_variant_merge(&v, w); if (r < 0) return r; *ret = TAKE_PTR(v); return 0; }