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Diffstat (limited to 'src/network/networkd-network.c')
-rw-r--r--src/network/networkd-network.c329
1 files changed, 170 insertions, 159 deletions
diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index 429aac5e6c..ccc1c3ce89 100644
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -10,6 +10,7 @@
#include "fd-util.h"
#include "hostname-util.h"
#include "in-addr-util.h"
+#include "missing_network.h"
#include "network-internal.h"
#include "networkd-manager.h"
#include "networkd-network.h"
@@ -21,28 +22,22 @@
#include "strv.h"
#include "util.h"
-static void network_config_hash_func(const void *p, struct siphash *state) {
- const NetworkConfigSection *c = p;
-
+static void network_config_hash_func(const NetworkConfigSection *c, struct siphash *state) {
siphash24_compress(c->filename, strlen(c->filename), state);
siphash24_compress(&c->line, sizeof(c->line), state);
}
-static int network_config_compare_func(const void *a, const void *b) {
- const NetworkConfigSection *x = a, *y = b;
+static int network_config_compare_func(const NetworkConfigSection *x, const NetworkConfigSection *y) {
int r;
r = strcmp(x->filename, y->filename);
if (r != 0)
return r;
- return y->line - x->line;
+ return CMP(x->line, y->line);
}
-const struct hash_ops network_config_hash_ops = {
- .hash = network_config_hash_func,
- .compare = network_config_compare_func,
-};
+DEFINE_HASH_OPS(network_config_hash_ops, NetworkConfigSection, network_config_hash_func, network_config_compare_func);
int network_config_section_new(const char *filename, unsigned line, NetworkConfigSection **s) {
NetworkConfigSection *cs;
@@ -80,8 +75,7 @@ void network_apply_anonymize_if_set(Network *network) {
network->dhcp_client_identifier = DHCP_CLIENT_ID_MAC;
/* RFC 7844 3.10:
SHOULD NOT use the Vendor Class Identifier option */
- /* NOTE: it was not initiallized to any value in network_load_one. */
- network->dhcp_vendor_class_identifier = false;
+ network->dhcp_vendor_class_identifier = mfree(network->dhcp_vendor_class_identifier);
/* RFC7844 section 3.6.:
The client intending to protect its privacy SHOULD only request a
minimal number of options in the PRL and SHOULD also randomly shuffle
@@ -103,7 +97,7 @@ void network_apply_anonymize_if_set(Network *network) {
network->dhcp_use_timezone = false;
}
-static int network_load_one(Manager *manager, const char *filename) {
+int network_load_one(Manager *manager, const char *filename) {
_cleanup_(network_freep) Network *network = NULL;
_cleanup_fclose_ FILE *file = NULL;
char *d;
@@ -128,47 +122,73 @@ static int network_load_one(Manager *manager, const char *filename) {
return 0;
}
- network = new0(Network, 1);
+ network = new(Network, 1);
if (!network)
return log_oom();
- network->manager = manager;
-
- LIST_HEAD_INIT(network->static_addresses);
- LIST_HEAD_INIT(network->static_routes);
- LIST_HEAD_INIT(network->static_fdb_entries);
- LIST_HEAD_INIT(network->ipv6_proxy_ndp_addresses);
- LIST_HEAD_INIT(network->address_labels);
- LIST_HEAD_INIT(network->static_prefixes);
- LIST_HEAD_INIT(network->rules);
-
- network->stacked_netdevs = hashmap_new(&string_hash_ops);
- if (!network->stacked_netdevs)
- return log_oom();
-
- network->addresses_by_section = hashmap_new(&network_config_hash_ops);
- if (!network->addresses_by_section)
- return log_oom();
-
- network->routes_by_section = hashmap_new(&network_config_hash_ops);
- if (!network->routes_by_section)
- return log_oom();
-
- network->fdb_entries_by_section = hashmap_new(NULL);
- if (!network->fdb_entries_by_section)
- return log_oom();
-
- network->address_labels_by_section = hashmap_new(&network_config_hash_ops);
- if (!network->address_labels_by_section)
- log_oom();
-
- network->prefixes_by_section = hashmap_new(&network_config_hash_ops);
- if (!network->prefixes_by_section)
- return log_oom();
-
- network->rules_by_section = hashmap_new(&network_config_hash_ops);
- if (!network->rules_by_section)
- return log_oom();
+ *network = (Network) {
+ .manager = manager,
+
+ .required_for_online = true,
+ .dhcp = ADDRESS_FAMILY_NO,
+ .dhcp_use_ntp = true,
+ .dhcp_use_dns = true,
+ .dhcp_use_hostname = true,
+ .dhcp_use_routes = true,
+ /* NOTE: this var might be overwriten by network_apply_anonymize_if_set */
+ .dhcp_send_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 */
+ .dhcp_client_identifier = DHCP_CLIENT_ID_DUID,
+ .dhcp_route_table = RT_TABLE_MAIN,
+ .dhcp_route_table_set = false,
+ /* NOTE: from man: UseMTU=... Defaults to false*/
+ .dhcp_use_mtu = false,
+ /* NOTE: from man: UseTimezone=... Defaults to "no".*/
+ .dhcp_use_timezone = false,
+ .rapid_commit = true,
+
+ .dhcp_server_emit_dns = true,
+ .dhcp_server_emit_ntp = true,
+ .dhcp_server_emit_router = true,
+ .dhcp_server_emit_timezone = true,
+
+ .router_emit_dns = true,
+ .router_emit_domains = true,
+
+ .use_bpdu = -1,
+ .hairpin = -1,
+ .fast_leave = -1,
+ .allow_port_to_be_root = -1,
+ .unicast_flood = -1,
+ .multicast_to_unicast = -1,
+ .priority = LINK_BRIDGE_PORT_PRIORITY_INVALID,
+
+ .lldp_mode = LLDP_MODE_ROUTERS_ONLY,
+
+ .dns_default_route = -1,
+ .llmnr = RESOLVE_SUPPORT_YES,
+ .mdns = RESOLVE_SUPPORT_NO,
+ .dnssec_mode = _DNSSEC_MODE_INVALID,
+ .dns_over_tls_mode = _DNS_OVER_TLS_MODE_INVALID,
+
+ .link_local = ADDRESS_FAMILY_IPV6,
+
+ .ipv6_privacy_extensions = IPV6_PRIVACY_EXTENSIONS_NO,
+ .ipv6_accept_ra = -1,
+ .ipv6_dad_transmits = -1,
+ .ipv6_hop_limit = -1,
+ .ipv6_proxy_ndp = -1,
+ .duid.type = _DUID_TYPE_INVALID,
+ .proxy_arp = -1,
+ .arp = -1,
+ .multicast = -1,
+ .allmulticast = -1,
+ .ipv6_accept_ra_use_dns = true,
+ .ipv6_accept_ra_route_table = RT_TABLE_MAIN,
+ };
network->filename = strdup(filename);
if (!network->filename)
@@ -182,73 +202,8 @@ static int network_load_one(Manager *manager, const char *filename) {
if (!d)
return -EINVAL;
- assert(streq(d, ".network"));
-
*d = '\0';
- network->required_for_online = true;
- network->dhcp = ADDRESS_FAMILY_NO;
- network->dhcp_use_ntp = true;
- network->dhcp_use_dns = true;
- network->dhcp_use_hostname = true;
- network->dhcp_use_routes = true;
- /* NOTE: this var might be overwriten by network_apply_anonymize_if_set */
- network->dhcp_send_hostname = true;
- /* To enable/disable RFC7844 Anonymity Profiles */
- network->dhcp_anonymize = false;
- network->dhcp_route_metric = DHCP_ROUTE_METRIC;
- /* NOTE: this var might be overwrite by network_apply_anonymize_if_set */
- network->dhcp_client_identifier = DHCP_CLIENT_ID_DUID;
- network->dhcp_route_table = RT_TABLE_MAIN;
- network->dhcp_route_table_set = false;
- /* NOTE: the following vars were not set to any default,
- * even if they are commented in the man?
- * These vars might be overwriten by network_apply_anonymize_if_set */
- network->dhcp_vendor_class_identifier = false;
- /* NOTE: from man: UseMTU=... Defaults to false*/
- network->dhcp_use_mtu = false;
- /* NOTE: from man: UseTimezone=... Defaults to "no".*/
- network->dhcp_use_timezone = false;
- network->rapid_commit = true;
-
- network->dhcp_server_emit_dns = true;
- network->dhcp_server_emit_ntp = true;
- network->dhcp_server_emit_router = true;
- network->dhcp_server_emit_timezone = true;
-
- network->router_emit_dns = true;
- network->router_emit_domains = true;
-
- network->use_bpdu = -1;
- network->hairpin = -1;
- network->fast_leave = -1;
- network->allow_port_to_be_root = -1;
- network->unicast_flood = -1;
- network->priority = LINK_BRIDGE_PORT_PRIORITY_INVALID;
-
- network->lldp_mode = LLDP_MODE_ROUTERS_ONLY;
-
- network->llmnr = RESOLVE_SUPPORT_YES;
- network->mdns = RESOLVE_SUPPORT_NO;
- network->dnssec_mode = _DNSSEC_MODE_INVALID;
- network->dns_over_tls_mode = _DNS_OVER_TLS_MODE_INVALID;
-
- network->link_local = ADDRESS_FAMILY_IPV6;
-
- network->ipv6_privacy_extensions = IPV6_PRIVACY_EXTENSIONS_NO;
- network->ipv6_accept_ra = -1;
- network->ipv6_dad_transmits = -1;
- network->ipv6_hop_limit = -1;
- network->ipv6_proxy_ndp = -1;
- network->duid.type = _DUID_TYPE_INVALID;
- network->proxy_arp = -1;
- network->arp = -1;
- network->multicast = -1;
- network->allmulticast = -1;
- network->ipv6_accept_ra_use_dns = true;
- network->ipv6_accept_ra_route_table = RT_TABLE_MAIN;
- network->ipv6_mtu = 0;
-
dropin_dirname = strjoina(network->name, ".network.d");
r = config_parse_many(filename, network_dirs, dropin_dirname,
@@ -256,6 +211,7 @@ static int network_load_one(Manager *manager, const char *filename) {
"Link\0"
"Network\0"
"Address\0"
+ "Neighbor\0"
"IPv6AddressLabel\0"
"RoutingPolicyRule\0"
"Route\0"
@@ -281,6 +237,12 @@ static int network_load_one(Manager *manager, const char *filename) {
if (network->ip_masquerade)
network->ip_forward |= ADDRESS_FAMILY_IPV4;
+ if (network->mtu > 0 && network->dhcp_use_mtu) {
+ log_warning("MTUBytes= in [Link] section and UseMTU= in [DHCP] section are set in %s. "
+ "Disabling UseMTU=.", filename);
+ network->dhcp_use_mtu = false;
+ }
+
LIST_PREPEND(networks, manager->networks, network);
r = hashmap_ensure_allocated(&manager->networks_by_name, &string_hash_ops);
@@ -340,12 +302,11 @@ void network_free(Network *network) {
IPv6ProxyNDPAddress *ipv6_proxy_ndp_address;
RoutingPolicyRule *rule;
FdbEntry *fdb_entry;
+ Neighbor *neighbor;
AddressLabel *label;
Prefix *prefix;
Address *address;
- NetDev *netdev;
Route *route;
- Iterator i;
if (!network)
return;
@@ -371,15 +332,14 @@ void network_free(Network *network) {
strv_free(network->route_domains);
strv_free(network->bind_carrier);
+ strv_free(network->router_search_domains);
+ free(network->router_dns);
+
netdev_unref(network->bridge);
netdev_unref(network->bond);
netdev_unref(network->vrf);
- HASHMAP_FOREACH(netdev, network->stacked_netdevs, i) {
- hashmap_remove(network->stacked_netdevs, netdev->ifname);
- netdev_unref(netdev);
- }
- hashmap_free(network->stacked_netdevs);
+ hashmap_free_with_destructor(network->stacked_netdevs, netdev_unref);
while ((route = network->static_routes))
route_free(route);
@@ -393,6 +353,9 @@ void network_free(Network *network) {
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);
@@ -405,6 +368,7 @@ void network_free(Network *network) {
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);
@@ -413,8 +377,11 @@ void network_free(Network *network) {
if (network->manager->networks)
LIST_REMOVE(networks, network->manager->networks, network);
- if (network->manager->networks_by_name)
+ if (network->manager->networks_by_name && network->name)
hashmap_remove(network->manager->networks_by_name, network->name);
+
+ if (network->manager->duids_requesting_uuid)
+ set_remove(network->manager->duids_requesting_uuid, &network->duid);
}
free(network->name);
@@ -450,26 +417,25 @@ int network_get_by_name(Manager *manager, const char *name, Network **ret) {
return 0;
}
-int network_get(Manager *manager, struct udev_device *device,
+int network_get(Manager *manager, sd_device *device,
const char *ifname, const struct ether_addr *address,
Network **ret) {
- Network *network;
- struct udev_device *parent;
const char *path = NULL, *parent_driver = NULL, *driver = NULL, *devtype = NULL;
+ sd_device *parent;
+ Network *network;
assert(manager);
assert(ret);
if (device) {
- path = udev_device_get_property_value(device, "ID_PATH");
+ (void) sd_device_get_property_value(device, "ID_PATH", &path);
- parent = udev_device_get_parent(device);
- if (parent)
- parent_driver = udev_device_get_driver(parent);
+ if (sd_device_get_parent(device, &parent) >= 0)
+ (void) sd_device_get_driver(parent, &parent_driver);
- driver = udev_device_get_property_value(device, "ID_NET_DRIVER");
+ (void) sd_device_get_property_value(device, "ID_NET_DRIVER", &driver);
- devtype = udev_device_get_devtype(device);
+ (void) sd_device_get_devtype(device, &devtype);
}
LIST_FOREACH(networks, network, manager->networks) {
@@ -484,8 +450,7 @@ int network_get(Manager *manager, struct udev_device *device,
const char *attr;
uint8_t name_assign_type = NET_NAME_UNKNOWN;
- attr = udev_device_get_sysattr_value(device, "name_assign_type");
- if (attr)
+ 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)
@@ -605,14 +570,17 @@ int config_parse_netdev(const char *unit,
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;
@@ -622,6 +590,10 @@ int config_parse_netdev(const char *unit,
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);
@@ -686,9 +658,8 @@ int config_parse_domains(
* 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);
+ 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;
@@ -702,16 +673,12 @@ int config_parse_domains(
}
}
- if (is_route) {
+ if (is_route)
r = strv_extend(&n->route_domains, domain);
- if (r < 0)
- return log_oom();
-
- } else {
+ else
r = strv_extend(&n->search_domains, domain);
- if (r < 0)
- return log_oom();
- }
+ if (r < 0)
+ return log_oom();
}
strv_uniq(n->route_domains);
@@ -760,6 +727,10 @@ int config_parse_tunnel(const char *unit,
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);
@@ -966,7 +937,8 @@ int config_parse_hostname(
void *data,
void *userdata) {
- char **hostname = data, *hn = NULL;
+ _cleanup_free_ char *hn = NULL;
+ char **hostname = data;
int r;
assert(filename);
@@ -979,13 +951,20 @@ int config_parse_hostname(
if (!hostname_is_valid(hn, false)) {
log_syntax(unit, LOG_ERR, filename, line, 0, "Hostname is not valid, ignoring assignment: %s", rvalue);
- free(hn);
return 0;
}
- free(*hostname);
- *hostname = hostname_cleanup(hn);
- return 0;
+ 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(
@@ -1000,7 +979,8 @@ int config_parse_timezone(
void *data,
void *userdata) {
- char **datap = data, *tz = NULL;
+ _cleanup_free_ char *tz = NULL;
+ char **datap = data;
int r;
assert(filename);
@@ -1013,14 +993,10 @@ int config_parse_timezone(
if (!timezone_is_valid(tz, LOG_ERR)) {
log_syntax(unit, LOG_ERR, filename, line, 0, "Timezone is not valid, ignoring assignment: %s", rvalue);
- free(tz);
return 0;
}
- free(*datap);
- *datap = tz;
-
- return 0;
+ return free_and_replace(*datap, tz);
}
int config_parse_dhcp_server_dns(
@@ -1146,8 +1122,7 @@ int config_parse_radv_search_domains(
assert(rvalue);
for (;;) {
- _cleanup_free_ char *w = NULL;
- _cleanup_free_ char *idna = NULL;
+ _cleanup_free_ char *w = NULL, *idna = NULL;
r = extract_first_word(&p, &w, NULL, 0);
if (r == -ENOMEM)
@@ -1160,11 +1135,15 @@ int config_parse_radv_search_domains(
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 if (r == 0) {
+ } else {
r = strv_push(&n->router_search_domains, w);
if (r >= 0)
w = NULL;
@@ -1490,3 +1469,35 @@ static const char* const lldp_mode_table[_LLDP_MODE_MAX] = {
};
DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(lldp_mode, LLDPMode, LLDP_MODE_YES);
+
+int config_parse_iaid(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 iaid;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(network);
+
+ r = safe_atou32(rvalue, &iaid);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Unable to read IAID, ignoring assignment: %s", rvalue);
+ return 0;
+ }
+
+ network->iaid = iaid;
+ network->iaid_set = true;
+
+ return 0;
+}
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