/* SPDX-License-Identifier: LGPL-2.1+ */
+#include <net/if.h>
+#include <netinet/in.h>
#include <linux/netdevice.h>
#include "alloc-util.h"
return 0;
}
-static uint32_t network_get_stacked_netdevs_mtu(Network *network) {
- uint32_t mtu = 0;
- NetDev *dev;
- Iterator i;
-
- HASHMAP_FOREACH(dev, network->stacked_netdevs, i)
- if (dev->kind == NETDEV_KIND_VLAN && dev->mtu > 0)
- /* See vlan_dev_change_mtu() in kernel.
- * Note that the additional 4bytes may not be necessary for all devices. */
- mtu = MAX(mtu, dev->mtu + 4);
-
- else if (dev->kind == NETDEV_KIND_MACVLAN && dev->mtu > mtu)
- /* See macvlan_change_mtu() in kernel. */
- mtu = dev->mtu;
-
- return mtu;
-}
-
int network_verify(Network *network) {
Address *address, *address_next;
Route *route, *route_next;
AddressLabel *label, *label_next;
Prefix *prefix, *prefix_next;
RoutingPolicyRule *rule, *rule_next;
- uint32_t mtu;
assert(network);
assert(network->filename);
if (network->ip_masquerade)
network->ip_forward |= ADDRESS_FAMILY_IPV4;
- network->mtu_is_set = network->mtu > 0;
- mtu = network_get_stacked_netdevs_mtu(network);
- if (network->mtu < mtu) {
- if (network->mtu_is_set)
- log_notice("%s: Bumping MTUBytes= from %"PRIu32" to %"PRIu32" because of stacked device",
- network->filename, network->mtu, mtu);
- network->mtu = mtu;
- }
-
- if (network->mtu_is_set && network->dhcp_use_mtu) {
+ if (network->mtu > 0 && network->dhcp_use_mtu) {
log_warning("%s: MTUBytes= in [Link] section and UseMTU= in [DHCP] section are set. "
"Disabling UseMTU=.", network->filename);
network->dhcp_use_mtu = false;
}
+ if (network->dhcp_critical >= 0) {
+ if (network->keep_configuration >= 0)
+ log_warning("%s: Both KeepConfiguration= and deprecated CriticalConnection= are set. "
+ "Ignoring CriticalConnection=.", network->filename);
+ else if (network->dhcp_critical)
+ /* CriticalConnection=yes also preserve foreign static configurations. */
+ network->keep_configuration = KEEP_CONFIGURATION_YES;
+ else
+ /* For backward compatibility, we do not release DHCP addresses on manager stop. */
+ network->keep_configuration = KEEP_CONFIGURATION_DHCP_ON_STOP;
+ }
+
+ if (network->keep_configuration < 0)
+ /* For backward compatibility, we do not release DHCP addresses on manager stop. */
+ network->keep_configuration = KEEP_CONFIGURATION_DHCP_ON_STOP;
+
LIST_FOREACH_SAFE(addresses, address, address_next, network->static_addresses)
if (address_section_verify(address) < 0)
address_free(address);
int network_load_one(Manager *manager, const char *filename) {
_cleanup_free_ char *fname = NULL, *name = NULL;
- _cleanup_(network_freep) Network *network = NULL;
+ _cleanup_(network_unrefp) Network *network = NULL;
_cleanup_fclose_ FILE *file = NULL;
const char *dropin_dirname;
char *d;
.filename = TAKE_PTR(fname),
.name = TAKE_PTR(name),
+ .manager = manager,
+ .n_ref = 1,
+
.required_for_online = true,
.required_operstate_for_online = LINK_OPERSTATE_DEGRADED,
.dhcp = ADDRESS_FAMILY_NO,
+ .dhcp_critical = -1,
.dhcp_use_ntp = true,
.dhcp_use_dns = true,
.dhcp_use_hostname = true,
/* To enable/disable RFC7844 Anonymity Profiles */
.dhcp_anonymize = false,
.dhcp_route_metric = DHCP_ROUTE_METRIC,
- /* NOTE: this var might be overwrite by network_apply_anonymize_if_set */
+ /* NOTE: this var might be overwritten by network_apply_anonymize_if_set */
.dhcp_client_identifier = DHCP_CLIENT_ID_DUID,
.dhcp_route_table = RT_TABLE_MAIN,
.dhcp_route_table_set = false,
.multicast_to_unicast = -1,
.neighbor_suppression = -1,
.learning = -1,
+ .bridge_proxy_arp = -1,
+ .bridge_proxy_arp_wifi = -1,
.priority = LINK_BRIDGE_PORT_PRIORITY_INVALID,
+ .multicast_router = _MULTICAST_ROUTER_INVALID,
.lldp_mode = LLDP_MODE_ROUTERS_ONLY,
.ipv6_accept_ra_route_table = RT_TABLE_MAIN,
.ipv6_accept_ra_route_table_set = false,
+ .keep_configuration = _KEEP_CONFIGURATION_INVALID,
+
.can_triple_sampling = -1,
};
if (r < 0)
log_warning_errno(r, "%s: Failed to add IPv4LL route, ignoring: %m", network->filename);
- LIST_PREPEND(networks, manager->networks, network);
- network->manager = manager;
+ r = network_add_default_route_on_device(network);
+ if (r < 0)
+ log_warning_errno(r, "%s: Failed to add default route on device, ignoring: %m",
+ network->filename);
- r = hashmap_ensure_allocated(&manager->networks_by_name, &string_hash_ops);
+ r = ordered_hashmap_ensure_allocated(&manager->networks, &string_hash_ops);
if (r < 0)
return r;
- r = hashmap_put(manager->networks_by_name, network->name, network);
+ r = ordered_hashmap_put(manager->networks, network->name, network);
if (r < 0)
return r;
}
int network_load(Manager *manager) {
- Network *network;
_cleanup_strv_free_ char **files = NULL;
char **f;
int r;
assert(manager);
- while ((network = manager->networks))
- network_free(network);
+ 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_BACKWARDS(f, files) {
+ STRV_FOREACH(f, files) {
r = network_load_one(manager, *f);
if (r < 0)
return r;
return 0;
}
-void network_free(Network *network) {
+static Network *network_free(Network *network) {
IPv6ProxyNDPAddress *ipv6_proxy_ndp_address;
RoutingPolicyRule *rule;
FdbEntry *fdb_entry;
Route *route;
if (!network)
- return;
+ return NULL;
free(network->filename);
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);
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);
hashmap_free(network->rules_by_section);
if (network->manager) {
- if (network->manager->networks)
- LIST_REMOVE(networks, network->manager->networks, network);
-
- if (network->manager->networks_by_name && network->name)
- hashmap_remove(network->manager->networks_by_name, network->name);
+ 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);
set_free_free(network->dnssec_negative_trust_anchors);
- free(network);
+ 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(name);
assert(ret);
- network = hashmap_get(manager->networks_by_name, name);
+ network = ordered_hashmap_get(manager->networks, name);
if (!network)
return -ENOENT;
Network **ret) {
const char *path = NULL, *driver = NULL, *devtype = NULL;
Network *network;
+ Iterator i;
assert(manager);
assert(ret);
(void) sd_device_get_devtype(device, &devtype);
}
- LIST_FOREACH(networks, network, manager->networks) {
+ 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,
*ret = network;
return 0;
}
- }
*ret = NULL;
assert(network);
assert(link);
- link->network = network;
+ link->network = network_ref(network);
if (network->n_dns > 0 ||
!strv_isempty(network->ntp) ||
assert(data);
assert(IN_SET(kind,
NETDEV_KIND_VLAN, NETDEV_KIND_MACVLAN, NETDEV_KIND_MACVTAP,
- NETDEV_KIND_IPVLAN, NETDEV_KIND_VXLAN, NETDEV_KIND_L2TP,
- NETDEV_KIND_MACSEC, _NETDEV_KIND_TUNNEL));
+ 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,
for (;;) {
_cleanup_free_ char *w = NULL;
- struct in_addr a, *m;
+ union in_addr_union a;
+ struct in_addr *m;
r = extract_first_word(&p, &w, NULL, 0);
if (r == -ENOMEM)
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);
+ 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;
}
if (!m)
return log_oom();
- m[n->n_dhcp_server_dns++] = a;
+ m[n->n_dhcp_server_dns++] = a.in;
n->dhcp_server_dns = m;
}
for (;;) {
_cleanup_free_ char *w = NULL;
- struct in_addr a, *m;
+ union in_addr_union a;
+ struct in_addr *m;
r = extract_first_word(&p, &w, NULL, 0);
if (r == -ENOMEM)
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);
+ 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;
}
if (!m)
return log_oom();
- m[n->n_dhcp_server_ntp++] = a;
+ m[n->n_dhcp_server_ntp++] = a.in;
n->dhcp_server_ntp = m;
}
}
return 0;
}
+int config_parse_dhcp_max_attempts(
+ 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;
+ uint64_t a;
+ int r;
+
+ assert(network);
+ assert(lvalue);
+ assert(rvalue);
+
+ if (isempty(rvalue)) {
+ network->dhcp_max_attempts = 0;
+ return 0;
+ }
+
+ if (streq(rvalue, "infinity")) {
+ network->dhcp_max_attempts = (uint64_t) -1;
+ return 0;
+ }
+
+ r = safe_atou64(rvalue, &a);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse DHCP maximum attempts, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ if (a == 0) {
+ log_syntax(unit, LOG_ERR, filename, line, 0,
+ "%s= must be positive integer or 'infinity', ignoring: %s", lvalue, rvalue);
+ return 0;
+ }
+
+ network->dhcp_max_attempts = a;
+
+ return 0;
+}
+
+int config_parse_dhcp_black_listed_ip_address(
+ 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;
+ const char *p;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (isempty(rvalue)) {
+ network->dhcp_black_listed_ip = set_free(network->dhcp_black_listed_ip);
+ return 0;
+ }
+
+ for (p = rvalue;;) {
+ _cleanup_free_ char *n = NULL;
+ union in_addr_union ip;
+
+ r = extract_first_word(&p, &n, NULL, 0);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse DHCP black listed ip address, ignoring assignment: %s",
+ rvalue);
+ return 0;
+ }
+ if (r == 0)
+ return 0;
+
+ r = in_addr_from_string(AF_INET, n, &ip);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "DHCP black listed ip address is invalid, ignoring assignment: %s", n);
+ continue;
+ }
+
+ r = set_ensure_allocated(&network->dhcp_black_listed_ip, NULL);
+ if (r < 0)
+ return log_oom();
+
+ r = set_put(network->dhcp_black_listed_ip, UINT32_TO_PTR(ip.in.s_addr));
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to store DHCP black listed ip address '%s', ignoring assignment: %m", n);
+ }
+
+ return 0;
+}
+
DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp_use_domains, dhcp_use_domains, DHCPUseDomains,
"Failed to parse DHCP use domains setting");
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);
-
int config_parse_iaid(const char *unit,
const char *filename,
unsigned line,
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);
projects / thirdparty / systemd.git / blobdiff