]> git.ipfire.org Git - thirdparty/systemd.git/blobdiff - src/network/networkd-network.c
networkd: Add EmitRouter= option for DHCP Server (#3251)
[thirdparty/systemd.git] / src / network / networkd-network.c
index c11cb3dcb3c48fa33ff5d64f50dc8a889b4b4e2c..dd89b3770c00393337214581d34f140e63ad3fac 100644 (file)
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
 /***
   This file is part of systemd.
 
@@ -105,22 +103,25 @@ static int network_load_one(Manager *manager, const char *filename) {
         *d = '\0';
 
         network->dhcp = ADDRESS_FAMILY_NO;
-        network->dhcp_ntp = true;
-        network->dhcp_dns = true;
-        network->dhcp_hostname = true;
-        network->dhcp_routes = true;
-        network->dhcp_sendhost = true;
+        network->dhcp_use_ntp = true;
+        network->dhcp_use_dns = true;
+        network->dhcp_use_hostname = true;
+        network->dhcp_use_routes = true;
+        network->dhcp_send_hostname = true;
         network->dhcp_route_metric = DHCP_ROUTE_METRIC;
         network->dhcp_client_identifier = DHCP_CLIENT_ID_DUID;
 
         network->dhcp_server_emit_dns = true;
         network->dhcp_server_emit_ntp = true;
+        network->dhcp_server_emit_router = true;
         network->dhcp_server_emit_timezone = true;
 
         network->use_bpdu = true;
         network->allow_port_to_be_root = true;
         network->unicast_flood = true;
 
+        network->lldp_mode = LLDP_MODE_ROUTERS_ONLY;
+
         network->llmnr = RESOLVE_SUPPORT_YES;
         network->mdns = RESOLVE_SUPPORT_NO;
         network->dnssec_mode = _DNSSEC_MODE_INVALID;
@@ -131,6 +132,8 @@ static int network_load_one(Manager *manager, const char *filename) {
         network->ipv6_accept_ra = -1;
         network->ipv6_dad_transmits = -1;
         network->ipv6_hop_limit = -1;
+        network->duid.type = _DUID_TYPE_INVALID;
+        network->proxy_arp = -1;
 
         r = config_parse(NULL, filename, file,
                          "Match\0"
@@ -227,13 +230,14 @@ void network_free(Network *network) {
 
         free(network->description);
         free(network->dhcp_vendor_class_identifier);
-        free(network->hostname);
+        free(network->dhcp_hostname);
 
         free(network->mac);
 
         strv_free(network->ntp);
         strv_free(network->dns);
-        strv_free(network->domains);
+        strv_free(network->search_domains);
+        strv_free(network->route_domains);
         strv_free(network->bind_carrier);
 
         netdev_unref(network->bridge);
@@ -384,7 +388,10 @@ int network_apply(Manager *manager, Network *network, Link *link) {
                 route->protocol = RTPROT_STATIC;
         }
 
-        if (network->dns || network->ntp || network->domains) {
+        if (!strv_isempty(network->dns) ||
+            !strv_isempty(network->ntp) ||
+            !strv_isempty(network->search_domains) ||
+            !strv_isempty(network->route_domains)) {
                 manager_dirty(manager);
                 link_dirty(link);
         }
@@ -392,6 +399,19 @@ int network_apply(Manager *manager, Network *network, Link *link) {
         return 0;
 }
 
+bool network_has_static_ipv6_addresses(Network *network) {
+        Address *address;
+
+        assert(network);
+
+        LIST_FOREACH(addresses, address, network->static_addresses) {
+                if (address->family == AF_INET6)
+                        return true;
+        }
+
+        return false;
+}
+
 int config_parse_netdev(const char *unit,
                 const char *filename,
                 unsigned line,
@@ -469,49 +489,85 @@ int config_parse_netdev(const char *unit,
         return 0;
 }
 
-int config_parse_domains(const char *unit,
-                         const char *filename,
-                         unsigned line,
-                         const char *section,
-                         unsigned section_line,
-                         const char *lvalue,
-                         int ltype,
-                         const char *rvalue,
-                         void *data,
-                         void *userdata) {
-        Network *network = userdata;
-        char ***domains = data;
-        char **domain;
+int config_parse_domains(
+                const char *unit,
+                const char *filename,
+                unsigned line,
+                const char *section,
+                unsigned section_line,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        const char *p;
+        Network *n = data;
         int r;
 
-        r = config_parse_strv(unit, filename, line, section, section_line,
-                              lvalue, ltype, rvalue, domains, userdata);
-        if (r < 0)
-                return r;
+        assert(n);
+        assert(lvalue);
+        assert(rvalue);
 
-        strv_uniq(*domains);
-        network->wildcard_domain = !!strv_find(*domains, "*");
+        if (isempty(rvalue)) {
+                n->search_domains = strv_free(n->search_domains);
+                n->route_domains = strv_free(n->route_domains);
+                return 0;
+        }
 
-        STRV_FOREACH(domain, *domains) {
-                if (is_localhost(*domain))
-                        log_syntax(unit, LOG_ERR, filename, line, 0, "'localhost' domain names may not be configured, ignoring assignment: %s", *domain);
-                else {
-                        r = dns_name_is_valid(*domain);
-                        if (r <= 0 && !streq(*domain, "*")) {
-                                if (r < 0)
-                                        log_error_errno(r, "Failed to validate domain name: %s: %m", *domain);
-                                if (r == 0)
-                                        log_warning("Domain name is not valid, ignoring assignment: %s", *domain);
-                        } else
+        p = rvalue;
+        for (;;) {
+                _cleanup_free_ char *w = NULL, *normalized = NULL;
+                const char *domain;
+                bool is_route;
+
+                r = extract_first_word(&p, &w, NULL, 0);
+                if (r < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract search or route domain, ignoring: %s", rvalue);
+                        break;
+                }
+                if (r == 0)
+                        break;
+
+                is_route = w[0] == '~';
+                domain = is_route ? w + 1 : w;
+
+                if (dns_name_is_root(domain) || streq(domain, "*")) {
+                        /* If the root domain appears as is, or the special token "*" is found, we'll consider this as
+                         * routing domain, unconditionally. */
+                        is_route = true;
+                        domain = "."; /* make sure we don't allow empty strings, thus write the root domain as "." */
+
+                } else {
+                        r = dns_name_normalize(domain, &normalized);
+                        if (r < 0) {
+                                log_syntax(unit, LOG_ERR, filename, line, r, "'%s' is not a valid domain name, ignoring.", domain);
+                                continue;
+                        }
+
+                        domain = normalized;
+
+                        if (is_localhost(domain)) {
+                                log_syntax(unit, LOG_ERR, filename, line, 0, "'localhost' domain names may not be configure as search or route domains, ignoring assignment: %s", domain);
                                 continue;
+                        }
                 }
 
-                strv_remove(*domains, *domain);
+                if (is_route) {
+                        r = strv_extend(&n->route_domains, domain);
+                        if (r < 0)
+                                return log_oom();
 
-                /* We removed one entry, make sure we don't skip the next one */
-                domain--;
+                } else {
+                        r = strv_extend(&n->search_domains, domain);
+                        if (r < 0)
+                                return log_oom();
+                }
         }
 
+        strv_uniq(n->route_domains);
+        strv_uniq(n->search_domains);
+
         return 0;
 }
 
@@ -589,10 +645,7 @@ int config_parse_ipv4ll(
          * config_parse_address_family_boolean(), except that it
          * applies only to IPv4 */
 
-        if (parse_boolean(rvalue))
-                *link_local |= ADDRESS_FAMILY_IPV4;
-        else
-                *link_local &= ~ADDRESS_FAMILY_IPV4;
+        SET_FLAG(*link_local, ADDRESS_FAMILY_IPV4, parse_boolean(rvalue));
 
         return 0;
 }
@@ -930,7 +983,7 @@ int config_parse_dnssec_negative_trust_anchors(
         Network *n = data;
         int r;
 
-        assert(filename);
+        assert(n);
         assert(lvalue);
         assert(rvalue);
 
@@ -956,6 +1009,10 @@ int config_parse_dnssec_negative_trust_anchors(
                         continue;
                 }
 
+                r = set_ensure_allocated(&n->dnssec_negative_trust_anchors, &dns_name_hash_ops);
+                if (r < 0)
+                        return log_oom();
+
                 r = set_put(n->dnssec_negative_trust_anchors, w);
                 if (r < 0)
                         return log_oom();
@@ -965,3 +1022,23 @@ int config_parse_dnssec_negative_trust_anchors(
 
         return 0;
 }
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp_use_domains, dhcp_use_domains, DHCPUseDomains, "Failed to parse DHCP use domains setting");
+
+static const char* const dhcp_use_domains_table[_DHCP_USE_DOMAINS_MAX] = {
+        [DHCP_USE_DOMAINS_NO] = "no",
+        [DHCP_USE_DOMAINS_ROUTE] = "route",
+        [DHCP_USE_DOMAINS_YES] = "yes",
+};
+
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(dhcp_use_domains, DHCPUseDomains, DHCP_USE_DOMAINS_YES);
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_lldp_mode, lldp_mode, LLDPMode, "Failed to parse LLDP= setting.");
+
+static const char* const lldp_mode_table[_LLDP_MODE_MAX] = {
+        [LLDP_MODE_NO] = "no",
+        [LLDP_MODE_YES] = "yes",
+        [LLDP_MODE_ROUTERS_ONLY] = "routers-only",
+};
+
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(lldp_mode, LLDPMode, LLDP_MODE_YES);