1331 lines
47 KiB
C
1331 lines
47 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <net/if.h>
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#include <netinet/in.h>
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#include <linux/netdevice.h>
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#include "alloc-util.h"
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#include "conf-files.h"
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#include "conf-parser.h"
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#include "dns-domain.h"
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#include "fd-util.h"
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#include "hostname-util.h"
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#include "in-addr-util.h"
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#include "network-internal.h"
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#include "networkd-manager.h"
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#include "networkd-network.h"
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#include "parse-util.h"
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#include "set.h"
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#include "socket-util.h"
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#include "stat-util.h"
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#include "string-table.h"
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#include "string-util.h"
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#include "strv.h"
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#include "util.h"
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/* Let's assume that anything above this number is a user misconfiguration. */
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#define MAX_NTP_SERVERS 128
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/* Set defaults following RFC7844 */
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void network_apply_anonymize_if_set(Network *network) {
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if (!network->dhcp_anonymize)
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return;
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/* RFC7844 3.7
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SHOULD NOT send the Host Name option */
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network->dhcp_send_hostname = false;
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/* RFC7844 section 3.:
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MAY contain the Client Identifier option
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Section 3.5:
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clients MUST use client identifiers based solely
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on the link-layer address */
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/* NOTE: Using MAC, as it does not reveal extra information,
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* and some servers might not answer if this option is not sent */
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network->dhcp_client_identifier = DHCP_CLIENT_ID_MAC;
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/* RFC 7844 3.10:
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SHOULD NOT use the Vendor Class Identifier option */
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network->dhcp_vendor_class_identifier = mfree(network->dhcp_vendor_class_identifier);
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/* RFC7844 section 3.6.:
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The client intending to protect its privacy SHOULD only request a
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minimal number of options in the PRL and SHOULD also randomly shuffle
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the ordering of option codes in the PRL. If this random ordering
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cannot be implemented, the client MAY order the option codes in the
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PRL by option code number (lowest to highest).
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*/
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/* NOTE: dhcp_use_mtu is false by default,
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* though it was not initiallized to any value in network_load_one.
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* Maybe there should be another var called *send*?
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* (to use the MTU sent by the server but to do not send
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* the option in the PRL). */
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network->dhcp_use_mtu = false;
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/* NOTE: when Anonymize=yes, the PRL route options are sent by default,
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* but this is needed to use them. */
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network->dhcp_use_routes = true;
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/* RFC7844 section 3.6.
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* same comments as previous option */
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network->dhcp_use_timezone = false;
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}
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static int network_resolve_netdev_one(Network *network, const char *name, NetDevKind kind, NetDev **ret_netdev) {
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const char *kind_string;
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NetDev *netdev;
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int r;
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/* For test-networkd-conf, the check must be earlier than the assertions. */
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if (!name)
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return 0;
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assert(network);
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assert(network->manager);
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assert(network->filename);
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assert(ret_netdev);
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if (kind == _NETDEV_KIND_TUNNEL)
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kind_string = "tunnel";
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else {
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kind_string = netdev_kind_to_string(kind);
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if (!kind_string)
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return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
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"%s: Invalid NetDev kind of %s, ignoring assignment.",
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network->filename, name);
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}
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r = netdev_get(network->manager, name, &netdev);
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if (r < 0)
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return log_error_errno(r, "%s: %s NetDev could not be found, ignoring assignment.",
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network->filename, name);
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if (netdev->kind != kind && !(kind == _NETDEV_KIND_TUNNEL &&
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IN_SET(netdev->kind,
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NETDEV_KIND_IPIP,
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NETDEV_KIND_SIT,
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NETDEV_KIND_GRE,
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NETDEV_KIND_GRETAP,
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NETDEV_KIND_IP6GRE,
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NETDEV_KIND_IP6GRETAP,
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NETDEV_KIND_VTI,
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NETDEV_KIND_VTI6,
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NETDEV_KIND_IP6TNL,
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NETDEV_KIND_ERSPAN)))
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return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
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"%s: NetDev %s is not a %s, ignoring assignment",
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network->filename, name, kind_string);
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*ret_netdev = netdev_ref(netdev);
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return 1;
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}
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static int network_resolve_stacked_netdevs(Network *network) {
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void *name, *kind;
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Iterator i;
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int r;
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assert(network);
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HASHMAP_FOREACH_KEY(kind, name, network->stacked_netdev_names, i) {
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_cleanup_(netdev_unrefp) NetDev *netdev = NULL;
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r = network_resolve_netdev_one(network, name, PTR_TO_INT(kind), &netdev);
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if (r <= 0)
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continue;
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r = hashmap_ensure_allocated(&network->stacked_netdevs, &string_hash_ops);
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if (r < 0)
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return log_oom();
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r = hashmap_put(network->stacked_netdevs, netdev->ifname, netdev);
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if (r < 0)
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return log_error_errno(r, "%s: Failed to add NetDev '%s' to network: %m",
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network->filename, (const char *) name);
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netdev = NULL;
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}
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return 0;
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}
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int network_verify(Network *network) {
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Address *address, *address_next;
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Route *route, *route_next;
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FdbEntry *fdb, *fdb_next;
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Neighbor *neighbor, *neighbor_next;
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AddressLabel *label, *label_next;
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Prefix *prefix, *prefix_next;
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RoutingPolicyRule *rule, *rule_next;
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assert(network);
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assert(network->filename);
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if (set_isempty(network->match_mac) && strv_isempty(network->match_path) &&
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strv_isempty(network->match_driver) && strv_isempty(network->match_type) &&
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strv_isempty(network->match_name) && !network->conditions)
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log_warning("%s: No valid settings found in the [Match] section. "
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"The file will match all interfaces. "
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"If that is intended, please add Name=* in the [Match] section.",
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network->filename);
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/* skip out early if configuration does not match the environment */
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if (!condition_test_list(network->conditions, NULL, NULL, NULL))
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return log_debug_errno(SYNTHETIC_ERRNO(EINVAL),
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"%s: Conditions in the file do not match the system environment, skipping.",
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network->filename);
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(void) network_resolve_netdev_one(network, network->bond_name, NETDEV_KIND_BOND, &network->bond);
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(void) network_resolve_netdev_one(network, network->bridge_name, NETDEV_KIND_BRIDGE, &network->bridge);
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(void) network_resolve_netdev_one(network, network->vrf_name, NETDEV_KIND_VRF, &network->vrf);
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(void) network_resolve_stacked_netdevs(network);
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/* Free unnecessary entries. */
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network->bond_name = mfree(network->bond_name);
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network->bridge_name = mfree(network->bridge_name);
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network->vrf_name = mfree(network->vrf_name);
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network->stacked_netdev_names = hashmap_free_free_key(network->stacked_netdev_names);
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if (network->bond) {
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/* Bonding slave does not support addressing. */
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if (network->ipv6_accept_ra > 0) {
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log_warning("%s: Cannot enable IPv6AcceptRA= when Bond= is specified, disabling IPv6AcceptRA=.",
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network->filename);
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network->ipv6_accept_ra = 0;
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}
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if (network->link_local >= 0 && network->link_local != ADDRESS_FAMILY_NO) {
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log_warning("%s: Cannot enable LinkLocalAddressing= when Bond= is specified, disabling LinkLocalAddressing=.",
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network->filename);
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network->link_local = ADDRESS_FAMILY_NO;
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}
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if (network->dhcp != ADDRESS_FAMILY_NO) {
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log_warning("%s: Cannot enable DHCP= when Bond= is specified, disabling DHCP=.",
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network->filename);
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network->dhcp = ADDRESS_FAMILY_NO;
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}
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if (network->dhcp_server) {
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log_warning("%s: Cannot enable DHCPServer= when Bond= is specified, disabling DHCPServer=.",
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network->filename);
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network->dhcp_server = false;
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}
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if (network->n_static_addresses > 0) {
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log_warning("%s: Cannot set addresses when Bond= is specified, ignoring addresses.",
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network->filename);
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while ((address = network->static_addresses))
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address_free(address);
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}
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if (network->n_static_routes > 0) {
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log_warning("%s: Cannot set routes when Bond= is specified, ignoring routes.",
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network->filename);
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while ((route = network->static_routes))
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route_free(route);
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}
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}
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if (network->link_local < 0)
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network->link_local = network->bridge ? ADDRESS_FAMILY_NO : ADDRESS_FAMILY_IPV6;
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if (FLAGS_SET(network->link_local, ADDRESS_FAMILY_FALLBACK_IPV4) &&
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!FLAGS_SET(network->dhcp, ADDRESS_FAMILY_IPV4)) {
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log_warning("%s: fallback assignment of IPv4 link local address is enabled but DHCPv4 is disabled. "
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"Disabling the fallback assignment.", network->filename);
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SET_FLAG(network->link_local, ADDRESS_FAMILY_FALLBACK_IPV4, false);
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}
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if (network->ipv6_accept_ra < 0 && network->bridge)
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network->ipv6_accept_ra = false;
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/* IPMasquerade=yes implies IPForward=yes */
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if (network->ip_masquerade)
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network->ip_forward |= ADDRESS_FAMILY_IPV4;
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if (network->mtu > 0 && network->dhcp_use_mtu) {
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log_warning("%s: MTUBytes= in [Link] section and UseMTU= in [DHCP] section are set. "
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"Disabling UseMTU=.", network->filename);
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network->dhcp_use_mtu = false;
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}
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if (network->dhcp_critical >= 0) {
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if (network->keep_configuration >= 0)
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log_warning("%s: Both KeepConfiguration= and deprecated CriticalConnection= are set. "
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"Ignoring CriticalConnection=.", network->filename);
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else if (network->dhcp_critical)
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/* CriticalConnection=yes also preserve foreign static configurations. */
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network->keep_configuration = KEEP_CONFIGURATION_YES;
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else
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/* For backward compatibility, we do not release DHCP addresses on manager stop. */
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network->keep_configuration = KEEP_CONFIGURATION_DHCP_ON_STOP;
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}
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if (network->keep_configuration < 0)
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/* For backward compatibility, we do not release DHCP addresses on manager stop. */
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network->keep_configuration = KEEP_CONFIGURATION_DHCP_ON_STOP;
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LIST_FOREACH_SAFE(addresses, address, address_next, network->static_addresses)
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if (address_section_verify(address) < 0)
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address_free(address);
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LIST_FOREACH_SAFE(routes, route, route_next, network->static_routes)
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if (route_section_verify(route, network) < 0)
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route_free(route);
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LIST_FOREACH_SAFE(static_fdb_entries, fdb, fdb_next, network->static_fdb_entries)
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if (section_is_invalid(fdb->section))
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fdb_entry_free(fdb);
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LIST_FOREACH_SAFE(neighbors, neighbor, neighbor_next, network->neighbors)
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if (section_is_invalid(neighbor->section))
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neighbor_free(neighbor);
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LIST_FOREACH_SAFE(labels, label, label_next, network->address_labels)
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if (section_is_invalid(label->section))
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address_label_free(label);
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LIST_FOREACH_SAFE(prefixes, prefix, prefix_next, network->static_prefixes)
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if (section_is_invalid(prefix->section))
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prefix_free(prefix);
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LIST_FOREACH_SAFE(rules, rule, rule_next, network->rules)
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if (section_is_invalid(rule->section))
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routing_policy_rule_free(rule);
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return 0;
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}
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int network_load_one(Manager *manager, const char *filename) {
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_cleanup_free_ char *fname = NULL, *name = NULL;
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_cleanup_(network_unrefp) Network *network = NULL;
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_cleanup_fclose_ FILE *file = NULL;
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const char *dropin_dirname;
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char *d;
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int r;
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assert(manager);
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assert(filename);
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file = fopen(filename, "re");
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if (!file) {
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if (errno == ENOENT)
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return 0;
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return -errno;
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}
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if (null_or_empty_fd(fileno(file))) {
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log_debug("Skipping empty file: %s", filename);
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return 0;
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}
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fname = strdup(filename);
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if (!fname)
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return log_oom();
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name = strdup(basename(filename));
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if (!name)
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return log_oom();
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d = strrchr(name, '.');
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if (!d)
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return -EINVAL;
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*d = '\0';
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dropin_dirname = strjoina(name, ".network.d");
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network = new(Network, 1);
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if (!network)
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return log_oom();
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*network = (Network) {
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.filename = TAKE_PTR(fname),
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.name = TAKE_PTR(name),
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.manager = manager,
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.n_ref = 1,
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.required_for_online = true,
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.required_operstate_for_online = LINK_OPERSTATE_DEGRADED,
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.dhcp = ADDRESS_FAMILY_NO,
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.dhcp_critical = -1,
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.dhcp_use_ntp = true,
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.dhcp_use_dns = true,
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.dhcp_use_hostname = true,
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.dhcp_use_routes = true,
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/* NOTE: this var might be overwritten by network_apply_anonymize_if_set */
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.dhcp_send_hostname = true,
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/* To enable/disable RFC7844 Anonymity Profiles */
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.dhcp_anonymize = false,
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.dhcp_route_metric = DHCP_ROUTE_METRIC,
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/* NOTE: this var might be overwritten by network_apply_anonymize_if_set */
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.dhcp_client_identifier = DHCP_CLIENT_ID_DUID,
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.dhcp_route_table = RT_TABLE_MAIN,
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.dhcp_route_table_set = false,
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/* NOTE: from man: UseMTU=... Defaults to false*/
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.dhcp_use_mtu = false,
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/* NOTE: from man: UseTimezone=... Defaults to "no".*/
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.dhcp_use_timezone = false,
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.rapid_commit = true,
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.dhcp_server_emit_dns = true,
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.dhcp_server_emit_ntp = true,
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.dhcp_server_emit_router = true,
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.dhcp_server_emit_timezone = true,
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.router_emit_dns = true,
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.router_emit_domains = true,
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.use_bpdu = -1,
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.hairpin = -1,
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.fast_leave = -1,
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.allow_port_to_be_root = -1,
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.unicast_flood = -1,
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.multicast_flood = -1,
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.multicast_to_unicast = -1,
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.neighbor_suppression = -1,
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.learning = -1,
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.bridge_proxy_arp = -1,
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.bridge_proxy_arp_wifi = -1,
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.priority = LINK_BRIDGE_PORT_PRIORITY_INVALID,
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.multicast_router = _MULTICAST_ROUTER_INVALID,
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.lldp_mode = LLDP_MODE_ROUTERS_ONLY,
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.dns_default_route = -1,
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.llmnr = RESOLVE_SUPPORT_YES,
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.mdns = RESOLVE_SUPPORT_NO,
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.dnssec_mode = _DNSSEC_MODE_INVALID,
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.dns_over_tls_mode = _DNS_OVER_TLS_MODE_INVALID,
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/* If LinkLocalAddressing= is not set, then set to ADDRESS_FAMILY_IPV6 later. */
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.link_local = _ADDRESS_FAMILY_BOOLEAN_INVALID,
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.ipv6_privacy_extensions = IPV6_PRIVACY_EXTENSIONS_NO,
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.ipv6_accept_ra = -1,
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.ipv6_dad_transmits = -1,
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.ipv6_hop_limit = -1,
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.ipv6_proxy_ndp = -1,
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.duid.type = _DUID_TYPE_INVALID,
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.proxy_arp = -1,
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.arp = -1,
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.multicast = -1,
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.allmulticast = -1,
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.ipv6_accept_ra_use_dns = true,
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.ipv6_accept_ra_use_autonomous_prefix = true,
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.ipv6_accept_ra_use_onlink_prefix = true,
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.ipv6_accept_ra_route_table = RT_TABLE_MAIN,
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.ipv6_accept_ra_route_table_set = false,
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.keep_configuration = _KEEP_CONFIGURATION_INVALID,
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.can_triple_sampling = -1,
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};
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r = config_parse_many(filename, NETWORK_DIRS, dropin_dirname,
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"Match\0"
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"Link\0"
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"Network\0"
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"Address\0"
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"Neighbor\0"
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"IPv6AddressLabel\0"
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"RoutingPolicyRule\0"
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"Route\0"
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"DHCP\0"
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"DHCPv4\0" /* compat */
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"DHCPServer\0"
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"IPv6AcceptRA\0"
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"IPv6NDPProxyAddress\0"
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"Bridge\0"
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"BridgeFDB\0"
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"BridgeVLAN\0"
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"IPv6PrefixDelegation\0"
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"IPv6Prefix\0"
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"CAN\0",
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config_item_perf_lookup, network_network_gperf_lookup,
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CONFIG_PARSE_WARN, network);
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if (r < 0)
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return r;
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network_apply_anonymize_if_set(network);
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r = network_add_ipv4ll_route(network);
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if (r < 0)
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log_warning_errno(r, "%s: Failed to add IPv4LL route, ignoring: %m", network->filename);
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r = network_add_default_route_on_device(network);
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if (r < 0)
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log_warning_errno(r, "%s: Failed to add default route on device, ignoring: %m",
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network->filename);
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r = ordered_hashmap_ensure_allocated(&manager->networks, &string_hash_ops);
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if (r < 0)
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return r;
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r = ordered_hashmap_put(manager->networks, network->name, network);
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if (r < 0)
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return r;
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if (network_verify(network) < 0)
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return 0;
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network = NULL;
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return 0;
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}
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|
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int network_load(Manager *manager) {
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|
_cleanup_strv_free_ char **files = NULL;
|
|
char **f;
|
|
int r;
|
|
|
|
assert(manager);
|
|
|
|
ordered_hashmap_clear_with_destructor(manager->networks, network_unref);
|
|
|
|
r = conf_files_list_strv(&files, ".network", NULL, 0, NETWORK_DIRS);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to enumerate network files: %m");
|
|
|
|
STRV_FOREACH(f, files) {
|
|
r = network_load_one(manager, *f);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static Network *network_free(Network *network) {
|
|
IPv6ProxyNDPAddress *ipv6_proxy_ndp_address;
|
|
RoutingPolicyRule *rule;
|
|
FdbEntry *fdb_entry;
|
|
Neighbor *neighbor;
|
|
AddressLabel *label;
|
|
Prefix *prefix;
|
|
Address *address;
|
|
Route *route;
|
|
|
|
if (!network)
|
|
return NULL;
|
|
|
|
free(network->filename);
|
|
|
|
set_free_free(network->match_mac);
|
|
strv_free(network->match_path);
|
|
strv_free(network->match_driver);
|
|
strv_free(network->match_type);
|
|
strv_free(network->match_name);
|
|
condition_free_list(network->conditions);
|
|
|
|
free(network->description);
|
|
free(network->dhcp_vendor_class_identifier);
|
|
strv_free(network->dhcp_user_class);
|
|
free(network->dhcp_hostname);
|
|
set_free(network->dhcp_black_listed_ip);
|
|
free(network->mac);
|
|
|
|
strv_free(network->ntp);
|
|
free(network->dns);
|
|
ordered_set_free_free(network->search_domains);
|
|
ordered_set_free_free(network->route_domains);
|
|
strv_free(network->bind_carrier);
|
|
|
|
ordered_set_free_free(network->router_search_domains);
|
|
free(network->router_dns);
|
|
set_free_free(network->ndisc_black_listed_prefix);
|
|
|
|
free(network->bridge_name);
|
|
free(network->bond_name);
|
|
free(network->vrf_name);
|
|
hashmap_free_free_key(network->stacked_netdev_names);
|
|
netdev_unref(network->bridge);
|
|
netdev_unref(network->bond);
|
|
netdev_unref(network->vrf);
|
|
hashmap_free_with_destructor(network->stacked_netdevs, netdev_unref);
|
|
|
|
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);
|
|
|
|
while ((ipv6_proxy_ndp_address = network->ipv6_proxy_ndp_addresses))
|
|
ipv6_proxy_ndp_address_free(ipv6_proxy_ndp_address);
|
|
|
|
while ((neighbor = network->neighbors))
|
|
neighbor_free(neighbor);
|
|
|
|
while ((label = network->address_labels))
|
|
address_label_free(label);
|
|
|
|
while ((prefix = network->static_prefixes))
|
|
prefix_free(prefix);
|
|
|
|
while ((rule = network->rules))
|
|
routing_policy_rule_free(rule);
|
|
|
|
hashmap_free(network->addresses_by_section);
|
|
hashmap_free(network->routes_by_section);
|
|
hashmap_free(network->fdb_entries_by_section);
|
|
hashmap_free(network->neighbors_by_section);
|
|
hashmap_free(network->address_labels_by_section);
|
|
hashmap_free(network->prefixes_by_section);
|
|
hashmap_free(network->rules_by_section);
|
|
|
|
if (network->manager) {
|
|
if (network->manager->networks && network->name)
|
|
ordered_hashmap_remove(network->manager->networks, network->name);
|
|
|
|
if (network->manager->duids_requesting_uuid)
|
|
set_remove(network->manager->duids_requesting_uuid, &network->duid);
|
|
}
|
|
|
|
free(network->name);
|
|
|
|
free(network->dhcp_server_timezone);
|
|
free(network->dhcp_server_dns);
|
|
free(network->dhcp_server_ntp);
|
|
|
|
set_free_free(network->dnssec_negative_trust_anchors);
|
|
|
|
return mfree(network);
|
|
}
|
|
|
|
DEFINE_TRIVIAL_REF_UNREF_FUNC(Network, network, network_free);
|
|
|
|
int network_get_by_name(Manager *manager, const char *name, Network **ret) {
|
|
Network *network;
|
|
|
|
assert(manager);
|
|
assert(name);
|
|
assert(ret);
|
|
|
|
network = ordered_hashmap_get(manager->networks, name);
|
|
if (!network)
|
|
return -ENOENT;
|
|
|
|
*ret = network;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int network_get(Manager *manager, sd_device *device,
|
|
const char *ifname, const struct ether_addr *address,
|
|
Network **ret) {
|
|
const char *path = NULL, *driver = NULL, *devtype = NULL;
|
|
Network *network;
|
|
Iterator i;
|
|
|
|
assert(manager);
|
|
assert(ret);
|
|
|
|
if (device) {
|
|
(void) sd_device_get_property_value(device, "ID_PATH", &path);
|
|
|
|
(void) sd_device_get_property_value(device, "ID_NET_DRIVER", &driver);
|
|
|
|
(void) sd_device_get_devtype(device, &devtype);
|
|
}
|
|
|
|
ORDERED_HASHMAP_FOREACH(network, manager->networks, i)
|
|
if (net_match_config(network->match_mac, network->match_path,
|
|
network->match_driver, network->match_type,
|
|
network->match_name,
|
|
address, path, driver, devtype, ifname)) {
|
|
if (network->match_name && device) {
|
|
const char *attr;
|
|
uint8_t name_assign_type = NET_NAME_UNKNOWN;
|
|
|
|
if (sd_device_get_sysattr_value(device, "name_assign_type", &attr) >= 0)
|
|
(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(Network *network, Link *link) {
|
|
assert(network);
|
|
assert(link);
|
|
|
|
link->network = network_ref(network);
|
|
|
|
if (network->n_dns > 0 ||
|
|
!strv_isempty(network->ntp) ||
|
|
!ordered_set_isempty(network->search_domains) ||
|
|
!ordered_set_isempty(network->route_domains))
|
|
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_stacked_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) {
|
|
_cleanup_free_ char *name = NULL;
|
|
NetDevKind kind = ltype;
|
|
Hashmap **h = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
assert(IN_SET(kind,
|
|
NETDEV_KIND_VLAN, NETDEV_KIND_MACVLAN, NETDEV_KIND_MACVTAP,
|
|
NETDEV_KIND_IPVLAN, NETDEV_KIND_IPVTAP, NETDEV_KIND_VXLAN,
|
|
NETDEV_KIND_L2TP, NETDEV_KIND_MACSEC, _NETDEV_KIND_TUNNEL));
|
|
|
|
if (!ifname_valid(rvalue)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0,
|
|
"Invalid netdev name in %s=, ignoring assignment: %s", lvalue, rvalue);
|
|
return 0;
|
|
}
|
|
|
|
name = strdup(rvalue);
|
|
if (!name)
|
|
return log_oom();
|
|
|
|
r = hashmap_ensure_allocated(h, &string_hash_ops);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
r = hashmap_put(*h, name, INT_TO_PTR(kind));
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Cannot add NetDev '%s' to network, ignoring assignment: %m", name);
|
|
else if (r == 0)
|
|
log_syntax(unit, LOG_DEBUG, filename, line, r,
|
|
"NetDev '%s' specified twice, ignoring.", name);
|
|
else
|
|
name = NULL;
|
|
|
|
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 = ordered_set_free_free(n->search_domains);
|
|
n->route_domains = ordered_set_free_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, 0, &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 may not be configured as search or route domain, ignoring assignment: %s",
|
|
domain);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
OrderedSet **set = is_route ? &n->route_domains : &n->search_domains;
|
|
r = ordered_set_ensure_allocated(set, &string_hash_ops);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = ordered_set_put_strdup(*set, domain);
|
|
if (r < 0)
|
|
return log_oom();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
if (in_addr_is_null(AF_INET6, &buffer)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0,
|
|
"IPv6 token cannot 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 cannot 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) {
|
|
|
|
_cleanup_free_ char *hn = NULL;
|
|
char **hostname = data;
|
|
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);
|
|
return 0;
|
|
}
|
|
|
|
r = dns_name_is_valid(hn);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to check validity of hostname '%s', ignoring assignment: %m", rvalue);
|
|
return 0;
|
|
}
|
|
if (r == 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0,
|
|
"Hostname is not a valid DNS domain name, ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
return free_and_replace(*hostname, hn);
|
|
}
|
|
|
|
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) {
|
|
|
|
_cleanup_free_ char *tz = NULL;
|
|
char **datap = data;
|
|
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_ERR)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0,
|
|
"Timezone is not valid, ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
return free_and_replace(*datap, tz);
|
|
}
|
|
|
|
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;
|
|
union in_addr_union a;
|
|
struct in_addr *m;
|
|
|
|
r = extract_first_word(&p, &w, NULL, 0);
|
|
if (r == -ENOMEM)
|
|
return log_oom();
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to extract word, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
if (r == 0)
|
|
break;
|
|
|
|
r = in_addr_from_string(AF_INET, w, &a);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to parse DNS server address '%s', ignoring assignment: %m", w);
|
|
continue;
|
|
}
|
|
|
|
m = reallocarray(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.in;
|
|
n->dhcp_server_dns = m;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
union in_addr_union a;
|
|
struct in_addr *m;
|
|
|
|
r = extract_first_word(&p, &w, NULL, 0);
|
|
if (r == -ENOMEM)
|
|
return log_oom();
|
|
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;
|
|
|
|
r = in_addr_from_string(AF_INET, w, &a);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to parse NTP server address '%s', ignoring: %m", w);
|
|
continue;
|
|
}
|
|
|
|
m = reallocarray(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.in;
|
|
n->dhcp_server_ntp = m;
|
|
}
|
|
}
|
|
|
|
int config_parse_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 = userdata;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
|
|
for (;;) {
|
|
_cleanup_free_ char *w = NULL;
|
|
union in_addr_union a;
|
|
struct in_addr_data *m;
|
|
int family;
|
|
|
|
r = extract_first_word(&rvalue, &w, NULL, 0);
|
|
if (r == -ENOMEM)
|
|
return log_oom();
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Invalid syntax, ignoring: %s", rvalue);
|
|
break;
|
|
}
|
|
if (r == 0)
|
|
break;
|
|
|
|
r = in_addr_from_string_auto(w, &family, &a);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to parse dns server address, ignoring: %s", w);
|
|
continue;
|
|
}
|
|
|
|
m = reallocarray(n->dns, n->n_dns + 1, sizeof(struct in_addr_data));
|
|
if (!m)
|
|
return log_oom();
|
|
|
|
m[n->n_dns++] = (struct in_addr_data) {
|
|
.family = family,
|
|
.address = a,
|
|
};
|
|
|
|
n->dns = m;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
int config_parse_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) {
|
|
|
|
char ***l = data;
|
|
int r;
|
|
|
|
assert(l);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
|
|
if (isempty(rvalue)) {
|
|
*l = strv_free(*l);
|
|
return 0;
|
|
}
|
|
|
|
for (;;) {
|
|
_cleanup_free_ char *w = NULL;
|
|
|
|
r = extract_first_word(&rvalue, &w, NULL, 0);
|
|
if (r == -ENOMEM)
|
|
return log_oom();
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to extract NTP server name, ignoring: %s", rvalue);
|
|
break;
|
|
}
|
|
if (r == 0)
|
|
break;
|
|
|
|
r = dns_name_is_valid_or_address(w);
|
|
if (r <= 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"%s is not a valid domain name or IP address, ignoring.", w);
|
|
continue;
|
|
}
|
|
|
|
if (strv_length(*l) > MAX_NTP_SERVERS) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0,
|
|
"More than %u NTP servers specified, ignoring \"%s\" and any subsequent entries.",
|
|
MAX_NTP_SERVERS, w);
|
|
break;
|
|
}
|
|
|
|
r = strv_consume(l, TAKE_PTR(w));
|
|
if (r < 0)
|
|
return log_oom();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_required_for_online(
|
|
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 = data;
|
|
LinkOperationalState s;
|
|
bool required = true;
|
|
int r;
|
|
|
|
if (isempty(rvalue)) {
|
|
network->required_for_online = true;
|
|
network->required_operstate_for_online = LINK_OPERSTATE_DEGRADED;
|
|
return 0;
|
|
}
|
|
|
|
s = link_operstate_from_string(rvalue);
|
|
if (s < 0) {
|
|
r = parse_boolean(rvalue);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to parse %s= setting, ignoring assignment: %s",
|
|
lvalue, rvalue);
|
|
return 0;
|
|
}
|
|
|
|
required = r;
|
|
s = LINK_OPERSTATE_DEGRADED;
|
|
}
|
|
|
|
network->required_for_online = required;
|
|
network->required_operstate_for_online = s;
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_keep_configuration, keep_configuration, KeepConfiguration,
|
|
"Failed to parse KeepConfiguration= setting");
|
|
|
|
static const char* const keep_configuration_table[_KEEP_CONFIGURATION_MAX] = {
|
|
[KEEP_CONFIGURATION_NO] = "no",
|
|
[KEEP_CONFIGURATION_DHCP_ON_STOP] = "dhcp-on-stop",
|
|
[KEEP_CONFIGURATION_DHCP] = "dhcp",
|
|
[KEEP_CONFIGURATION_STATIC] = "static",
|
|
[KEEP_CONFIGURATION_YES] = "yes",
|
|
};
|
|
|
|
DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(keep_configuration, KeepConfiguration, KEEP_CONFIGURATION_YES);
|