./move.sh

1 files changed, 1044 insertions, 0 deletions

diff --git a/src/grp-network/networkd-network.c b/src/grp-network/networkd-network.c
new file mode 100644
index 0000000000..dd89b3770c
--- /dev/null
+++ b/src/grp-network/networkd-network.c
@@ -0,0 +1,1044 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2013 Tom Gundersen <teg@jklm.no>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <ctype.h>
+#include <net/if.h>
+
+#include "alloc-util.h"
+#include "conf-files.h"
+#include "conf-parser.h"
+#include "dns-domain.h"
+#include "fd-util.h"
+#include "hostname-util.h"
+#include "network-internal.h"
+#include "networkd-network.h"
+#include "networkd.h"
+#include "parse-util.h"
+#include "set.h"
+#include "stat-util.h"
+#include "string-table.h"
+#include "string-util.h"
+#include "util.h"
+
+static int network_load_one(Manager *manager, const char *filename) {
+        _cleanup_network_free_ Network *network = NULL;
+        _cleanup_fclose_ FILE *file = NULL;
+        char *d;
+        Route *route;
+        Address *address;
+        int r;
+
+        assert(manager);
+        assert(filename);
+
+        file = fopen(filename, "re");
+        if (!file) {
+                if (errno == ENOENT)
+                        return 0;
+                else
+                        return -errno;
+        }
+
+        if (null_or_empty_fd(fileno(file))) {
+                log_debug("Skipping empty file: %s", filename);
+                return 0;
+        }
+
+        network = new0(Network, 1);
+        if (!network)
+                return log_oom();
+
+        network->manager = manager;
+
+        LIST_HEAD_INIT(network->static_addresses);
+        LIST_HEAD_INIT(network->static_routes);
+        LIST_HEAD_INIT(network->static_fdb_entries);
+
+        network->stacked_netdevs = hashmap_new(&string_hash_ops);
+        if (!network->stacked_netdevs)
+                return log_oom();
+
+        network->addresses_by_section = hashmap_new(NULL);
+        if (!network->addresses_by_section)
+                return log_oom();
+
+        network->routes_by_section = hashmap_new(NULL);
+        if (!network->routes_by_section)
+                return log_oom();
+
+        network->fdb_entries_by_section = hashmap_new(NULL);
+        if (!network->fdb_entries_by_section)
+                return log_oom();
+
+        network->filename = strdup(filename);
+        if (!network->filename)
+                return log_oom();
+
+        network->name = strdup(basename(filename));
+        if (!network->name)
+                return log_oom();
+
+        d = strrchr(network->name, '.');
+        if (!d)
+                return -EINVAL;
+
+        assert(streq(d, ".network"));
+
+        *d = '\0';
+
+        network->dhcp = ADDRESS_FAMILY_NO;
+        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;
+
+        network->link_local = ADDRESS_FAMILY_IPV6;
+
+        network->ipv6_privacy_extensions = IPV6_PRIVACY_EXTENSIONS_NO;
+        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"
+                         "Link\0"
+                         "Network\0"
+                         "Address\0"
+                         "Route\0"
+                         "DHCP\0"
+                         "DHCPv4\0" /* compat */
+                         "DHCPServer\0"
+                         "Bridge\0"
+                         "BridgeFDB\0",
+                         config_item_perf_lookup, network_network_gperf_lookup,
+                         false, false, true, network);
+        if (r < 0)
+                return r;
+
+        /* IPMasquerade=yes implies IPForward=yes */
+        if (network->ip_masquerade)
+                network->ip_forward |= ADDRESS_FAMILY_IPV4;
+
+        LIST_PREPEND(networks, manager->networks, network);
+
+        r = hashmap_ensure_allocated(&manager->networks_by_name, &string_hash_ops);
+        if (r < 0)
+                return r;
+
+        r = hashmap_put(manager->networks_by_name, network->name, network);
+        if (r < 0)
+                return r;
+
+        LIST_FOREACH(routes, route, network->static_routes) {
+                if (!route->family) {
+                        log_warning("Route section without Gateway field configured in %s. "
+                                    "Ignoring", filename);
+                        return 0;
+                }
+        }
+
+        LIST_FOREACH(addresses, address, network->static_addresses) {
+                if (!address->family) {
+                        log_warning("Address section without Address field configured in %s. "
+                                    "Ignoring", filename);
+                        return 0;
+                }
+        }
+
+        network = NULL;
+
+        return 0;
+}
+
+int network_load(Manager *manager) {
+        Network *network;
+        _cleanup_strv_free_ char **files = NULL;
+        char **f;
+        int r;
+
+        assert(manager);
+
+        while ((network = manager->networks))
+                network_free(network);
+
+        r = conf_files_list_strv(&files, ".network", NULL, network_dirs);
+        if (r < 0)
+                return log_error_errno(r, "Failed to enumerate network files: %m");
+
+        STRV_FOREACH_BACKWARDS(f, files) {
+                r = network_load_one(manager, *f);
+                if (r < 0)
+                        return r;
+        }
+
+        return 0;
+}
+
+void network_free(Network *network) {
+        NetDev *netdev;
+        Route *route;
+        Address *address;
+        FdbEntry *fdb_entry;
+        Iterator i;
+
+        if (!network)
+                return;
+
+        free(network->filename);
+
+        free(network->match_mac);
+        strv_free(network->match_path);
+        strv_free(network->match_driver);
+        strv_free(network->match_type);
+        strv_free(network->match_name);
+
+        free(network->description);
+        free(network->dhcp_vendor_class_identifier);
+        free(network->dhcp_hostname);
+
+        free(network->mac);
+
+        strv_free(network->ntp);
+        strv_free(network->dns);
+        strv_free(network->search_domains);
+        strv_free(network->route_domains);
+        strv_free(network->bind_carrier);
+
+        netdev_unref(network->bridge);
+
+        netdev_unref(network->bond);
+
+        HASHMAP_FOREACH(netdev, network->stacked_netdevs, i) {
+                hashmap_remove(network->stacked_netdevs, netdev->ifname);
+                netdev_unref(netdev);
+        }
+        hashmap_free(network->stacked_netdevs);
+
+        while ((route = network->static_routes))
+                route_free(route);
+
+        while ((address = network->static_addresses))
+                address_free(address);
+
+        while ((fdb_entry = network->static_fdb_entries))
+                fdb_entry_free(fdb_entry);
+
+        hashmap_free(network->addresses_by_section);
+        hashmap_free(network->routes_by_section);
+        hashmap_free(network->fdb_entries_by_section);
+
+        if (network->manager) {
+                if (network->manager->networks)
+                        LIST_REMOVE(networks, network->manager->networks, network);
+
+                if (network->manager->networks_by_name)
+                        hashmap_remove(network->manager->networks_by_name, network->name);
+        }
+
+        free(network->name);
+
+        condition_free_list(network->match_host);
+        condition_free_list(network->match_virt);
+        condition_free_list(network->match_kernel);
+        condition_free_list(network->match_arch);
+
+        free(network->dhcp_server_timezone);
+        free(network->dhcp_server_dns);
+        free(network->dhcp_server_ntp);
+
+        set_free_free(network->dnssec_negative_trust_anchors);
+
+        free(network);
+}
+
+int network_get_by_name(Manager *manager, const char *name, Network **ret) {
+        Network *network;
+
+        assert(manager);
+        assert(name);
+        assert(ret);
+
+        network = hashmap_get(manager->networks_by_name, name);
+        if (!network)
+                return -ENOENT;
+
+        *ret = network;
+
+        return 0;
+}
+
+int network_get(Manager *manager, struct udev_device *device,
+                const char *ifname, const struct ether_addr *address,
+                Network **ret) {
+        Network *network;
+        struct udev_device *parent;
+        const char *path = NULL, *parent_driver = NULL, *driver = NULL, *devtype = NULL;
+
+        assert(manager);
+        assert(ret);
+
+        if (device) {
+                path = udev_device_get_property_value(device, "ID_PATH");
+
+                parent = udev_device_get_parent(device);
+                if (parent)
+                        parent_driver = udev_device_get_driver(parent);
+
+                driver = udev_device_get_property_value(device, "ID_NET_DRIVER");
+
+                devtype = udev_device_get_devtype(device);
+        }
+
+        LIST_FOREACH(networks, network, manager->networks) {
+                if (net_match_config(network->match_mac, network->match_path,
+                                     network->match_driver, network->match_type,
+                                     network->match_name, network->match_host,
+                                     network->match_virt, network->match_kernel,
+                                     network->match_arch,
+                                     address, path, parent_driver, driver,
+                                     devtype, ifname)) {
+                        if (network->match_name && device) {
+                                const char *attr;
+                                uint8_t name_assign_type = NET_NAME_UNKNOWN;
+
+                                attr = udev_device_get_sysattr_value(device, "name_assign_type");
+                                if (attr)
+                                        (void) safe_atou8(attr, &name_assign_type);
+
+                                if (name_assign_type == NET_NAME_ENUM)
+                                        log_warning("%s: found matching network '%s', based on potentially unpredictable ifname",
+                                                    ifname, network->filename);
+                                else
+                                        log_debug("%s: found matching network '%s'", ifname, network->filename);
+                        } else
+                                log_debug("%s: found matching network '%s'", ifname, network->filename);
+
+                        *ret = network;
+                        return 0;
+                }
+        }
+
+        *ret = NULL;
+
+        return -ENOENT;
+}
+
+int network_apply(Manager *manager, Network *network, Link *link) {
+        int r;
+
+        assert(manager);
+        assert(network);
+        assert(link);
+
+        link->network = network;
+
+        if (network->ipv4ll_route) {
+                Route *route;
+
+                r = route_new_static(network, 0, &route);
+                if (r < 0)
+                        return r;
+
+                r = inet_pton(AF_INET, "169.254.0.0", &route->dst.in);
+                if (r == 0)
+                        return -EINVAL;
+                if (r < 0)
+                        return -errno;
+
+                route->family = AF_INET;
+                route->dst_prefixlen = 16;
+                route->scope = RT_SCOPE_LINK;
+                route->priority = IPV4LL_ROUTE_METRIC;
+                route->protocol = RTPROT_STATIC;
+        }
+
+        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);
+        }
+
+        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,
+                const char *section,
+                unsigned section_line,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+        Network *network = userdata;
+        _cleanup_free_ char *kind_string = NULL;
+        char *p;
+        NetDev *netdev;
+        NetDevKind kind;
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        kind_string = strdup(lvalue);
+        if (!kind_string)
+                return log_oom();
+
+        /* the keys are CamelCase versions of the kind */
+        for (p = kind_string; *p; p++)
+                *p = tolower(*p);
+
+        kind = netdev_kind_from_string(kind_string);
+        if (kind == _NETDEV_KIND_INVALID) {
+                log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid NetDev kind: %s", lvalue);
+                return 0;
+        }
+
+        r = netdev_get(network->manager, rvalue, &netdev);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, r, "%s could not be found, ignoring assignment: %s", lvalue, rvalue);
+                return 0;
+        }
+
+        if (netdev->kind != kind) {
+                log_syntax(unit, LOG_ERR, filename, line, 0, "NetDev is not a %s, ignoring assignment: %s", lvalue, rvalue);
+                return 0;
+        }
+
+        switch (kind) {
+        case NETDEV_KIND_BRIDGE:
+                network->bridge = netdev;
+
+                break;
+        case NETDEV_KIND_BOND:
+                network->bond = netdev;
+
+                break;
+        case NETDEV_KIND_VLAN:
+        case NETDEV_KIND_MACVLAN:
+        case NETDEV_KIND_MACVTAP:
+        case NETDEV_KIND_IPVLAN:
+        case NETDEV_KIND_VXLAN:
+                r = hashmap_put(network->stacked_netdevs, netdev->ifname, netdev);
+                if (r < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, r, "Can not add VLAN '%s' to network: %m", rvalue);
+                        return 0;
+                }
+
+                break;
+        default:
+                assert_not_reached("Can not parse NetDev");
+        }
+
+        netdev_ref(netdev);
+
+        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) {
+
+        const char *p;
+        Network *n = data;
+        int r;
+
+        assert(n);
+        assert(lvalue);
+        assert(rvalue);
+
+        if (isempty(rvalue)) {
+                n->search_domains = strv_free(n->search_domains);
+                n->route_domains = strv_free(n->route_domains);
+                return 0;
+        }
+
+        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;
+                        }
+                }
+
+                if (is_route) {
+                        r = strv_extend(&n->route_domains, domain);
+                        if (r < 0)
+                                return log_oom();
+
+                } 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;
+}
+
+int config_parse_tunnel(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;
+        NetDev *netdev;
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        r = netdev_get(network->manager, rvalue, &netdev);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, r, "Tunnel is invalid, ignoring assignment: %s", rvalue);
+                return 0;
+        }
+
+        if (netdev->kind != NETDEV_KIND_IPIP &&
+            netdev->kind != NETDEV_KIND_SIT &&
+            netdev->kind != NETDEV_KIND_GRE &&
+            netdev->kind != NETDEV_KIND_GRETAP &&
+            netdev->kind != NETDEV_KIND_IP6GRE &&
+            netdev->kind != NETDEV_KIND_IP6GRETAP &&
+            netdev->kind != NETDEV_KIND_VTI &&
+            netdev->kind != NETDEV_KIND_VTI6 &&
+            netdev->kind != NETDEV_KIND_IP6TNL
+            ) {
+                log_syntax(unit, LOG_ERR, filename, line, 0,
+                           "NetDev is not a tunnel, ignoring assignment: %s", rvalue);
+                return 0;
+        }
+
+        r = hashmap_put(network->stacked_netdevs, netdev->ifname, netdev);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, r, "Cannot add VLAN '%s' to network, ignoring: %m", rvalue);
+                return 0;
+        }
+
+        netdev_ref(netdev);
+
+        return 0;
+}
+
+int config_parse_ipv4ll(
+                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) {
+
+        AddressFamilyBoolean *link_local = data;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        /* Note that this is mostly like
+         * config_parse_address_family_boolean(), except that it
+         * applies only to IPv4 */
+
+        SET_FLAG(*link_local, ADDRESS_FAMILY_IPV4, parse_boolean(rvalue));
+
+        return 0;
+}
+
+int config_parse_dhcp(
+                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) {
+
+        AddressFamilyBoolean *dhcp = data, s;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        /* Note that this is mostly like
+         * config_parse_address_family_boolean(), except that it
+         * understands some old names for the enum values */
+
+        s = address_family_boolean_from_string(rvalue);
+        if (s < 0) {
+
+                /* Previously, we had a slightly different enum here,
+                 * support its values for compatbility. */
+
+                if (streq(rvalue, "none"))
+                        s = ADDRESS_FAMILY_NO;
+                else if (streq(rvalue, "v4"))
+                        s = ADDRESS_FAMILY_IPV4;
+                else if (streq(rvalue, "v6"))
+                        s = ADDRESS_FAMILY_IPV6;
+                else if (streq(rvalue, "both"))
+                        s = ADDRESS_FAMILY_YES;
+                else {
+                        log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse DHCP option, ignoring: %s", rvalue);
+                        return 0;
+                }
+        }
+
+        *dhcp = s;
+        return 0;
+}
+
+static const char* const dhcp_client_identifier_table[_DHCP_CLIENT_ID_MAX] = {
+        [DHCP_CLIENT_ID_MAC] = "mac",
+        [DHCP_CLIENT_ID_DUID] = "duid"
+};
+
+DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(dhcp_client_identifier, DCHPClientIdentifier);
+DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp_client_identifier, dhcp_client_identifier, DCHPClientIdentifier, "Failed to parse client identifier type");
+
+int config_parse_ipv6token(
+                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) {
+
+        union in_addr_union buffer;
+        struct in6_addr *token = data;
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(token);
+
+        r = in_addr_from_string(AF_INET6, rvalue, &buffer);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse IPv6 token, ignoring: %s", rvalue);
+                return 0;
+        }
+
+        r = in_addr_is_null(AF_INET6, &buffer);
+        if (r != 0) {
+                log_syntax(unit, LOG_ERR, filename, line, r, "IPv6 token can not be the ANY address, ignoring: %s", rvalue);
+                return 0;
+        }
+
+        if ((buffer.in6.s6_addr32[0] | buffer.in6.s6_addr32[1]) != 0) {
+                log_syntax(unit, LOG_ERR, filename, line, 0, "IPv6 token can not be longer than 64 bits, ignoring: %s", rvalue);
+                return 0;
+        }
+
+        *token = buffer.in6;
+
+        return 0;
+}
+
+static const char* const ipv6_privacy_extensions_table[_IPV6_PRIVACY_EXTENSIONS_MAX] = {
+        [IPV6_PRIVACY_EXTENSIONS_NO] = "no",
+        [IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC] = "prefer-public",
+        [IPV6_PRIVACY_EXTENSIONS_YES] = "yes",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(ipv6_privacy_extensions, IPv6PrivacyExtensions);
+
+int config_parse_ipv6_privacy_extensions(
+                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) {
+
+        IPv6PrivacyExtensions *ipv6_privacy_extensions = data;
+        int k;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(ipv6_privacy_extensions);
+
+        /* Our enum shall be a superset of booleans, hence first try
+         * to parse as boolean, and then as enum */
+
+        k = parse_boolean(rvalue);
+        if (k > 0)
+                *ipv6_privacy_extensions = IPV6_PRIVACY_EXTENSIONS_YES;
+        else if (k == 0)
+                *ipv6_privacy_extensions = IPV6_PRIVACY_EXTENSIONS_NO;
+        else {
+                IPv6PrivacyExtensions s;
+
+                s = ipv6_privacy_extensions_from_string(rvalue);
+                if (s < 0) {
+
+                        if (streq(rvalue, "kernel"))
+                                s = _IPV6_PRIVACY_EXTENSIONS_INVALID;
+                        else {
+                                log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse IPv6 privacy extensions option, ignoring: %s", rvalue);
+                                return 0;
+                        }
+                }
+
+                *ipv6_privacy_extensions = s;
+        }
+
+        return 0;
+}
+
+int config_parse_hostname(
+                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) {
+
+        char **hostname = data, *hn = NULL;
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+
+        r = config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &hn, userdata);
+        if (r < 0)
+                return r;
+
+        if (!hostname_is_valid(hn, false)) {
+                log_syntax(unit, LOG_ERR, filename, line, 0, "Hostname is not valid, ignoring assignment: %s", rvalue);
+                free(hn);
+                return 0;
+        }
+
+        free(*hostname);
+        *hostname = hostname_cleanup(hn);
+        return 0;
+}
+
+int config_parse_timezone(
+                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) {
+
+        char **datap = data, *tz = NULL;
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+
+        r = config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &tz, userdata);
+        if (r < 0)
+                return r;
+
+        if (!timezone_is_valid(tz)) {
+                log_syntax(unit, LOG_ERR, filename, line, 0, "Timezone is not valid, ignoring assignment: %s", rvalue);
+                free(tz);
+                return 0;
+        }
+
+        free(*datap);
+        *datap = tz;
+
+        return 0;
+}
+
+int config_parse_dhcp_server_dns(
+                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 *n = data;
+        const char *p = rvalue;
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+
+        for (;;) {
+                _cleanup_free_ char *w = NULL;
+                struct in_addr a, *m;
+
+                r = extract_first_word(&p, &w, NULL, 0);
+                if (r < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract word, ignoring: %s", rvalue);
+                        return 0;
+                }
+
+                if (r == 0)
+                        return 0;
+
+                if (inet_pton(AF_INET, w, &a) <= 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse DNS server address, ignoring: %s", w);
+                        continue;
+                }
+
+                m = realloc(n->dhcp_server_dns, (n->n_dhcp_server_dns + 1) * sizeof(struct in_addr));
+                if (!m)
+                        return log_oom();
+
+                m[n->n_dhcp_server_dns++] = a;
+                n->dhcp_server_dns = m;
+        }
+}
+
+int config_parse_dhcp_server_ntp(
+                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 *n = data;
+        const char *p = rvalue;
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+
+        for (;;) {
+                _cleanup_free_ char *w = NULL;
+                struct in_addr a, *m;
+
+                r = extract_first_word(&p, &w, NULL, 0);
+                if (r < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract word, ignoring: %s", rvalue);
+                        return 0;
+                }
+
+                if (r == 0)
+                        return 0;
+
+                if (inet_pton(AF_INET, w, &a) <= 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse NTP server address, ignoring: %s", w);
+                        continue;
+                }
+
+                m = realloc(n->dhcp_server_ntp, (n->n_dhcp_server_ntp + 1) * sizeof(struct in_addr));
+                if (!m)
+                        return log_oom();
+
+                m[n->n_dhcp_server_ntp++] = a;
+                n->dhcp_server_ntp = m;
+        }
+}
+
+int config_parse_dnssec_negative_trust_anchors(
+                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 = rvalue;
+        Network *n = data;
+        int r;
+
+        assert(n);
+        assert(lvalue);
+        assert(rvalue);
+
+        if (isempty(rvalue)) {
+                n->dnssec_negative_trust_anchors = set_free_free(n->dnssec_negative_trust_anchors);
+                return 0;
+        }
+
+        for (;;) {
+                _cleanup_free_ char *w = NULL;
+
+                r = extract_first_word(&p, &w, NULL, 0);
+                if (r < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract negative trust anchor domain, ignoring: %s", rvalue);
+                        break;
+                }
+                if (r == 0)
+                        break;
+
+                r = dns_name_is_valid(w);
+                if (r <= 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, r, "%s is not a valid domain name, ignoring.", w);
+                        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();
+                if (r > 0)
+                        w = NULL;
+        }
+
+        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);