1474 lines
47 KiB
C
1474 lines
47 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <ctype.h>
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#include <net/if.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 "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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static void network_config_hash_func(const void *p, struct siphash *state) {
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const NetworkConfigSection *c = p;
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siphash24_compress(c->filename, strlen(c->filename), state);
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siphash24_compress(&c->line, sizeof(c->line), state);
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}
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static int network_config_compare_func(const void *a, const void *b) {
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const NetworkConfigSection *x = a, *y = b;
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int r;
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r = strcmp(x->filename, y->filename);
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if (r != 0)
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return r;
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return CMP(x->line, y->line);
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}
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const struct hash_ops network_config_hash_ops = {
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.hash = network_config_hash_func,
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.compare = network_config_compare_func,
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};
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int network_config_section_new(const char *filename, unsigned line, NetworkConfigSection **s) {
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NetworkConfigSection *cs;
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cs = malloc0(offsetof(NetworkConfigSection, filename) + strlen(filename) + 1);
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if (!cs)
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return -ENOMEM;
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strcpy(cs->filename, filename);
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cs->line = line;
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*s = TAKE_PTR(cs);
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return 0;
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}
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void network_config_section_free(NetworkConfigSection *cs) {
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free(cs);
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}
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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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int network_load_one(Manager *manager, const char *filename) {
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_cleanup_(network_freep) Network *network = NULL;
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_cleanup_fclose_ FILE *file = NULL;
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char *d;
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const char *dropin_dirname;
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Route *route;
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Address *address;
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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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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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.manager = manager,
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.required_for_online = true,
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.dhcp = ADDRESS_FAMILY_NO,
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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 overwriten 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 overwrite 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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.priority = LINK_BRIDGE_PORT_PRIORITY_INVALID,
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.lldp_mode = LLDP_MODE_ROUTERS_ONLY,
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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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.link_local = ADDRESS_FAMILY_IPV6,
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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_route_table = RT_TABLE_MAIN,
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};
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network->filename = strdup(filename);
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if (!network->filename)
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return log_oom();
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network->name = strdup(basename(filename));
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if (!network->name)
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return log_oom();
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d = strrchr(network->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(network->name, ".network.d");
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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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"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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/* 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("MTUBytes= in [Link] section and UseMTU= in [DHCP] section are set in %s. "
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"Disabling UseMTU=.", filename);
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network->dhcp_use_mtu = false;
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}
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LIST_PREPEND(networks, manager->networks, network);
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r = hashmap_ensure_allocated(&manager->networks_by_name, &string_hash_ops);
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if (r < 0)
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return r;
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r = hashmap_put(manager->networks_by_name, network->name, network);
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if (r < 0)
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return r;
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LIST_FOREACH(routes, route, network->static_routes) {
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if (!route->family) {
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log_warning("Route section without Gateway field configured in %s. "
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"Ignoring", filename);
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return 0;
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}
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}
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LIST_FOREACH(addresses, address, network->static_addresses) {
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if (!address->family) {
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log_warning("Address section without Address field configured in %s. "
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"Ignoring", filename);
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return 0;
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}
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}
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network = NULL;
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return 0;
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}
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int network_load(Manager *manager) {
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Network *network;
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_cleanup_strv_free_ char **files = NULL;
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char **f;
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int r;
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assert(manager);
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while ((network = manager->networks))
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network_free(network);
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r = conf_files_list_strv(&files, ".network", NULL, 0, network_dirs);
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if (r < 0)
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return log_error_errno(r, "Failed to enumerate network files: %m");
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STRV_FOREACH_BACKWARDS(f, files) {
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r = network_load_one(manager, *f);
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if (r < 0)
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return r;
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}
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return 0;
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}
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void network_free(Network *network) {
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IPv6ProxyNDPAddress *ipv6_proxy_ndp_address;
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RoutingPolicyRule *rule;
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FdbEntry *fdb_entry;
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AddressLabel *label;
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Prefix *prefix;
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Address *address;
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Route *route;
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if (!network)
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return;
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free(network->filename);
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set_free_free(network->match_mac);
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strv_free(network->match_path);
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strv_free(network->match_driver);
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strv_free(network->match_type);
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strv_free(network->match_name);
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free(network->description);
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free(network->dhcp_vendor_class_identifier);
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strv_free(network->dhcp_user_class);
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free(network->dhcp_hostname);
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free(network->mac);
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strv_free(network->ntp);
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free(network->dns);
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strv_free(network->search_domains);
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strv_free(network->route_domains);
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strv_free(network->bind_carrier);
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strv_free(network->router_search_domains);
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free(network->router_dns);
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netdev_unref(network->bridge);
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netdev_unref(network->bond);
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netdev_unref(network->vrf);
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hashmap_free_with_destructor(network->stacked_netdevs, netdev_unref);
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while ((route = network->static_routes))
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route_free(route);
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while ((address = network->static_addresses))
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address_free(address);
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while ((fdb_entry = network->static_fdb_entries))
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fdb_entry_free(fdb_entry);
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while ((ipv6_proxy_ndp_address = network->ipv6_proxy_ndp_addresses))
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ipv6_proxy_ndp_address_free(ipv6_proxy_ndp_address);
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while ((label = network->address_labels))
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address_label_free(label);
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while ((prefix = network->static_prefixes))
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prefix_free(prefix);
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while ((rule = network->rules))
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routing_policy_rule_free(rule);
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hashmap_free(network->addresses_by_section);
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hashmap_free(network->routes_by_section);
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hashmap_free(network->fdb_entries_by_section);
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hashmap_free(network->address_labels_by_section);
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hashmap_free(network->prefixes_by_section);
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hashmap_free(network->rules_by_section);
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if (network->manager) {
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if (network->manager->networks)
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LIST_REMOVE(networks, network->manager->networks, network);
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if (network->manager->networks_by_name && network->name)
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hashmap_remove(network->manager->networks_by_name, network->name);
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if (network->manager->duids_requesting_uuid)
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set_remove(network->manager->duids_requesting_uuid, &network->duid);
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}
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free(network->name);
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condition_free_list(network->match_host);
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condition_free_list(network->match_virt);
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condition_free_list(network->match_kernel_cmdline);
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condition_free_list(network->match_kernel_version);
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condition_free_list(network->match_arch);
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free(network->dhcp_server_timezone);
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free(network->dhcp_server_dns);
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free(network->dhcp_server_ntp);
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set_free_free(network->dnssec_negative_trust_anchors);
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free(network);
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}
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int network_get_by_name(Manager *manager, const char *name, Network **ret) {
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Network *network;
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assert(manager);
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assert(name);
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assert(ret);
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network = hashmap_get(manager->networks_by_name, name);
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if (!network)
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return -ENOENT;
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*ret = network;
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return 0;
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}
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int network_get(Manager *manager, sd_device *device,
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const char *ifname, const struct ether_addr *address,
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Network **ret) {
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const char *path = NULL, *parent_driver = NULL, *driver = NULL, *devtype = NULL;
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sd_device *parent;
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Network *network;
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assert(manager);
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assert(ret);
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if (device) {
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(void) sd_device_get_property_value(device, "ID_PATH", &path);
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if (sd_device_get_parent(device, &parent) >= 0)
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(void) sd_device_get_driver(parent, &parent_driver);
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(void) sd_device_get_property_value(device, "ID_NET_DRIVER", &driver);
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(void) sd_device_get_devtype(device, &devtype);
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}
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LIST_FOREACH(networks, network, manager->networks) {
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if (net_match_config(network->match_mac, network->match_path,
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network->match_driver, network->match_type,
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network->match_name, network->match_host,
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network->match_virt, network->match_kernel_cmdline,
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network->match_kernel_version, network->match_arch,
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address, path, parent_driver, driver,
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devtype, ifname)) {
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if (network->match_name && device) {
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const char *attr;
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uint8_t name_assign_type = NET_NAME_UNKNOWN;
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if (sd_device_get_sysattr_value(device, "name_assign_type", &attr) >= 0)
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(void) safe_atou8(attr, &name_assign_type);
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if (name_assign_type == NET_NAME_ENUM)
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log_warning("%s: found matching network '%s', based on potentially unpredictable ifname",
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ifname, network->filename);
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else
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log_debug("%s: found matching network '%s'", ifname, network->filename);
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} else
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log_debug("%s: found matching network '%s'", ifname, network->filename);
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*ret = network;
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return 0;
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}
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}
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*ret = NULL;
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return -ENOENT;
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}
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int network_apply(Network *network, Link *link) {
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int r;
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assert(network);
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assert(link);
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link->network = network;
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if (network->ipv4ll_route) {
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Route *route;
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r = route_new_static(network, NULL, 0, &route);
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if (r < 0)
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return r;
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r = inet_pton(AF_INET, "169.254.0.0", &route->dst.in);
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if (r == 0)
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return -EINVAL;
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if (r < 0)
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return -errno;
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route->family = AF_INET;
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route->dst_prefixlen = 16;
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route->scope = RT_SCOPE_LINK;
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route->priority = IPV4LL_ROUTE_METRIC;
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route->protocol = RTPROT_STATIC;
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}
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if (network->n_dns > 0 ||
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!strv_isempty(network->ntp) ||
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!strv_isempty(network->search_domains) ||
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!strv_isempty(network->route_domains))
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link_dirty(link);
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return 0;
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}
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bool network_has_static_ipv6_addresses(Network *network) {
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Address *address;
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assert(network);
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LIST_FOREACH(addresses, address, network->static_addresses) {
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if (address->family == AF_INET6)
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return true;
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}
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return false;
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}
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int config_parse_netdev(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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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_unref(network->bridge);
|
|
network->bridge = netdev;
|
|
|
|
break;
|
|
case NETDEV_KIND_BOND:
|
|
network->bond = netdev_unref(network->bond);
|
|
network->bond = netdev;
|
|
|
|
break;
|
|
case NETDEV_KIND_VRF:
|
|
network->vrf = netdev_unref(network->vrf);
|
|
network->vrf = netdev;
|
|
|
|
break;
|
|
case NETDEV_KIND_VLAN:
|
|
case NETDEV_KIND_MACVLAN:
|
|
case NETDEV_KIND_MACVTAP:
|
|
case NETDEV_KIND_IPVLAN:
|
|
case NETDEV_KIND_VXLAN:
|
|
case NETDEV_KIND_VCAN:
|
|
r = hashmap_ensure_allocated(&network->stacked_netdevs, &string_hash_ops);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
r = hashmap_put(network->stacked_netdevs, netdev->ifname, netdev);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Cannot add NetDev '%s' to network: %m", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
break;
|
|
default:
|
|
assert_not_reached("Cannot 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 (!IN_SET(netdev->kind,
|
|
NETDEV_KIND_IPIP,
|
|
NETDEV_KIND_SIT,
|
|
NETDEV_KIND_GRE,
|
|
NETDEV_KIND_GRETAP,
|
|
NETDEV_KIND_IP6GRE,
|
|
NETDEV_KIND_IP6GRETAP,
|
|
NETDEV_KIND_VTI,
|
|
NETDEV_KIND_VTI6,
|
|
NETDEV_KIND_IP6TNL)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0,
|
|
"NetDev is not a tunnel, ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = hashmap_ensure_allocated(&network->stacked_netdevs, &string_hash_ops);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
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",
|
|
[DHCP_CLIENT_ID_DUID_ONLY] = "duid-only",
|
|
};
|
|
|
|
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(dhcp_client_identifier, DHCPClientIdentifier);
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp_client_identifier, dhcp_client_identifier, DHCPClientIdentifier, "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 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;
|
|
struct in_addr a, *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;
|
|
|
|
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 = 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;
|
|
n->dhcp_server_dns = m;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_radv_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;
|
|
|
|
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;
|
|
|
|
if (in_addr_from_string(AF_INET6, w, &a) >= 0) {
|
|
struct in6_addr *m;
|
|
|
|
m = reallocarray(n->router_dns, n->n_router_dns + 1, sizeof(struct in6_addr));
|
|
if (!m)
|
|
return log_oom();
|
|
|
|
m[n->n_router_dns++] = a.in6;
|
|
n->router_dns = m;
|
|
|
|
} else
|
|
log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse DNS server address, ignoring: %s", w);
|
|
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_radv_search_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 *n = data;
|
|
const char *p = rvalue;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
|
|
for (;;) {
|
|
_cleanup_free_ char *w = NULL, *idna = NULL;
|
|
|
|
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 = dns_name_apply_idna(w, &idna);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Failed to apply IDNA to domain name '%s', ignoring: %m", w);
|
|
continue;
|
|
}
|
|
if (r > 0) {
|
|
r = strv_push(&n->router_search_domains, idna);
|
|
if (r >= 0)
|
|
idna = NULL;
|
|
} else {
|
|
r = strv_push(&n->router_search_domains, w);
|
|
if (r >= 0)
|
|
w = NULL;
|
|
}
|
|
}
|
|
|
|
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;
|
|
struct in_addr a, *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;
|
|
|
|
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 = 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;
|
|
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;
|
|
}
|
|
|
|
r = strv_push(l, w);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
w = NULL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_dhcp_user_class(
|
|
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 split user classes option, ignoring: %s", rvalue);
|
|
break;
|
|
}
|
|
if (r == 0)
|
|
break;
|
|
|
|
if (strlen(w) > 255) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "%s length is not in the range 1-255, ignoring.", w);
|
|
continue;
|
|
}
|
|
|
|
r = strv_push(l, w);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
w = NULL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_dhcp_route_table(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;
|
|
uint32_t rt;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = safe_atou32(rvalue, &rt);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Unable to read RouteTable, ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
network->dhcp_route_table = rt;
|
|
network->dhcp_route_table_set = true;
|
|
|
|
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);
|