along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include <ctype.h>
+#include <net/if.h>
+
#include "networkd.h"
-#include "net-util.h"
+#include "networkd-netdev.h"
+#include "networkd-link.h"
+#include "network-internal.h"
#include "path-util.h"
#include "conf-files.h"
#include "conf-parser.h"
+#include "util.h"
static int network_load_one(Manager *manager, const char *filename) {
_cleanup_network_free_ Network *network = NULL;
_cleanup_fclose_ FILE *file = NULL;
+ Route *route;
+ Address *address;
int r;
+ assert(manager);
+ assert(filename);
+
file = fopen(filename, "re");
if (!file) {
if (errno == ENOENT)
return 0;
else
- return errno;
+ return -errno;
+ }
+
+ if (null_or_empty_fd(fileno(file))) {
+ log_debug("Skipping empty file: %s", filename);
+ return 0;
}
network = new0(Network, 1);
if (!network)
return log_oom();
- LIST_HEAD_INIT(network->addresses);
+ network->manager = manager;
+
+ LIST_HEAD_INIT(network->static_addresses);
+ LIST_HEAD_INIT(network->static_routes);
+
+ network->stacked_netdevs = hashmap_new(&string_hash_ops);
+ if (!network->stacked_netdevs)
+ return log_oom();
+
+ network->addresses_by_section = hashmap_new(NULL);
+ if (!network->addresses_by_section)
+ return log_oom();
- r = config_parse(NULL, filename, file, "Match\0Network\0", config_item_perf_lookup,
- (void*) network_gperf_lookup, false, false, network);
- if (r < 0) {
- log_warning("Could not parse config file %s: %s", filename, strerror(-r));
- return r;
- } else
- log_debug("Parsed configuration file %s", filename);
+ network->routes_by_section = hashmap_new(NULL);
+ if (!network->routes_by_section)
+ return log_oom();
network->filename = strdup(filename);
if (!network->filename)
return log_oom();
- network->manager = manager;
+ network->dhcp = DHCP_SUPPORT_NONE;
+ network->dhcp_ntp = true;
+ network->dhcp_dns = true;
+ network->dhcp_hostname = true;
+ network->dhcp_routes = true;
+ network->dhcp_sendhost = true;
+ network->dhcp_route_metric = DHCP_ROUTE_METRIC;
+
+ network->llmnr = LLMNR_SUPPORT_YES;
+
+ r = config_parse(NULL, filename, file,
+ "Match\0Network\0Address\0Route\0DHCP\0DHCPv4\0BridgePort\0",
+ config_item_perf_lookup, network_network_gperf_lookup,
+ false, false, true, network);
+ if (r < 0)
+ return r;
LIST_PREPEND(networks, manager->networks, network);
+
+ LIST_FOREACH(routes, route, network->static_routes) {
+ if (!route->family) {
+ log_warning("Route section without Gateway field configured in %s. "
+ "Ignoring", filename);
+ return 0;
+ }
+ }
+
+ LIST_FOREACH(addresses, address, network->static_addresses) {
+ if (!address->family) {
+ log_warning("Address section without Address field configured in %s. "
+ "Ignoring", filename);
+ return 0;
+ }
+ }
+
network = NULL;
return 0;
int network_load(Manager *manager) {
Network *network;
- char **files, **f;
+ _cleanup_strv_free_ char **files = NULL;
+ char **f;
int r;
assert(manager);
while ((network = manager->networks))
network_free(network);
- /* update timestamp */
- paths_check_timestamp(manager->network_dirs, &manager->network_dirs_ts_usec, true);
-
- r = conf_files_list_strv(&files, ".network", NULL, (const char **)manager->network_dirs);
- if (r < 0) {
- log_error("failed to enumerate network files: %s", strerror(-r));
- return r;
- }
+ r = conf_files_list_strv(&files, ".network", NULL, network_dirs);
+ if (r < 0)
+ return log_error_errno(r, "Failed to enumerate network files: %m");
STRV_FOREACH_BACKWARDS(f, files) {
r = network_load_one(manager, *f);
return r;
}
- strv_free(files);
-
return 0;
}
-bool network_should_reload(Manager *manager) {
- return paths_check_timestamp(manager->network_dirs, &manager->network_dirs_ts_usec, false);
-}
-
void network_free(Network *network) {
+ NetDev *netdev;
Route *route;
Address *address;
+ Iterator i;
if (!network)
return;
free(network->match_name);
free(network->description);
+ free(network->dhcp_vendor_class_identifier);
+
+ strv_free(network->ntp);
+ strv_free(network->dns);
+ strv_free(network->domains);
- while ((route = network->routes))
+ netdev_unref(network->bridge);
+
+ netdev_unref(network->bond);
+
+ HASHMAP_FOREACH(netdev, network->stacked_netdevs, i) {
+ hashmap_remove(network->stacked_netdevs, netdev->ifname);
+ netdev_unref(netdev);
+ }
+ hashmap_free(network->stacked_netdevs);
+
+ while ((route = network->static_routes))
route_free(route);
- while ((address = network->addresses))
+ while ((address = network->static_addresses))
address_free(address);
- LIST_REMOVE(networks, network->manager->networks, network);
+ hashmap_free(network->addresses_by_section);
+ hashmap_free(network->routes_by_section);
+
+ if (network->manager && network->manager->networks)
+ LIST_REMOVE(networks, network->manager->networks, network);
+
+ condition_free_list(network->match_host);
+ condition_free_list(network->match_virt);
+ condition_free_list(network->match_kernel);
+ condition_free_list(network->match_arch);
free(network);
}
-int network_get(Manager *manager, struct udev_device *device, Network **ret) {
+int network_get(Manager *manager, struct udev_device *device,
+ const char *ifname, const struct ether_addr *address,
+ Network **ret) {
Network *network;
assert(manager);
- assert(device);
assert(ret);
- if (network_should_reload(manager))
- network_load(manager);
-
LIST_FOREACH(networks, network, manager->networks) {
if (net_match_config(network->match_mac, network->match_path,
- network->match_driver, network->match_type,
- network->match_name,
- udev_device_get_sysattr_value(device, "address"),
- udev_device_get_property_value(device, "ID_PATH"),
- udev_device_get_driver(device),
- udev_device_get_devtype(device),
- udev_device_get_sysname(device))) {
- log_debug("Network file %s applies to link %s",
- network->filename,
- udev_device_get_sysname(device));
+ network->match_driver, network->match_type,
+ network->match_name, network->match_host,
+ network->match_virt, network->match_kernel,
+ network->match_arch,
+ address,
+ udev_device_get_property_value(device, "ID_PATH"),
+ udev_device_get_driver(udev_device_get_parent(device)),
+ udev_device_get_property_value(device, "ID_NET_DRIVER"),
+ udev_device_get_devtype(device),
+ ifname)) {
+ log_debug("%-*s: found matching network '%s'", IFNAMSIZ, ifname,
+ network->filename);
*ret = network;
return 0;
}
int network_apply(Manager *manager, Network *network, Link *link) {
int r;
- log_info("Network '%s' being applied to link '%u'",
- network->description, (unsigned) link->ifindex);
-
link->network = network;
- r = link_configure(link);
+ if (network->ipv4ll_route) {
+ Route *route;
+
+ r = route_new_static(network, 0, &route);
+ if (r < 0)
+ return r;
+
+ r = inet_pton(AF_INET, "169.254.0.0", &route->dst_addr.in);
+ if (r == 0)
+ return -EINVAL;
+ if (r < 0)
+ return -errno;
+
+ route->family = AF_INET;
+ route->dst_prefixlen = 16;
+ route->scope = RT_SCOPE_LINK;
+ route->metrics = IPV4LL_ROUTE_METRIC;
+ route->protocol = RTPROT_STATIC;
+ }
+
+ if (network->dns || network->ntp) {
+ r = link_save(link);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int config_parse_netdev(const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+ Network *network = userdata;
+ _cleanup_free_ char *kind_string = NULL;
+ char *p;
+ NetDev *netdev;
+ NetDevKind kind;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ kind_string = strdup(lvalue);
+ if (!kind_string)
+ return log_oom();
+
+ /* the keys are CamelCase versions of the kind */
+ for (p = kind_string; *p; p++)
+ *p = tolower(*p);
+
+ kind = netdev_kind_from_string(kind_string);
+ if (kind == _NETDEV_KIND_INVALID) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "Invalid NetDev kind: %s", lvalue);
+ return 0;
+ }
+
+ r = netdev_get(network->manager, rvalue, &netdev);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "%s could not be found, ignoring assignment: %s", lvalue, rvalue);
+ return 0;
+ }
+
+ if (netdev->kind != kind) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "NetDev is not a %s, ignoring assignment: %s", lvalue, rvalue);
+ return 0;
+ }
+
+ switch (kind) {
+ case NETDEV_KIND_BRIDGE:
+ network->bridge = netdev;
+
+ break;
+ case NETDEV_KIND_BOND:
+ network->bond = netdev;
+
+ break;
+ case NETDEV_KIND_VLAN:
+ case NETDEV_KIND_MACVLAN:
+ case NETDEV_KIND_VXLAN:
+ r = hashmap_put(network->stacked_netdevs, netdev->ifname, netdev);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "Can not add VLAN '%s' to network: %s",
+ rvalue, strerror(-r));
+ return 0;
+ }
+
+ break;
+ default:
+ assert_not_reached("Can not parse NetDev");
+ }
+
+ netdev_ref(netdev);
+
+ return 0;
+}
+
+int config_parse_domains(const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+ Network *network = userdata;
+ char ***domains = data;
+ char **domain;
+ int r;
+
+ r = config_parse_strv(unit, filename, line, section, section_line,
+ lvalue, ltype, rvalue, domains, userdata);
if (r < 0)
return r;
+ strv_uniq(*domains);
+ network->wildcard_domain = !!strv_find(*domains, "*");
+
+ STRV_FOREACH(domain, *domains) {
+ if (is_localhost(*domain))
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL, "'localhost' domain names may not be configured, ignoring assignment: %s", *domain);
+ else if (!hostname_is_valid(*domain)) {
+ if (!streq(*domain, "*"))
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL, "domain name is not valid, ignoring assignment: %s", *domain);
+ } else
+ continue;
+
+ strv_remove(*domains, *domain);
+
+ /* We removed one entry, make sure we don't skip the next one */
+ domain--;
+ }
+
+ 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, EINVAL,
+ "Tunnel is invalid, ignoring assignment: %s", rvalue);
+ return 0;
+ }
+
+ if (netdev->kind != NETDEV_KIND_IPIP &&
+ netdev->kind != NETDEV_KIND_SIT &&
+ netdev->kind != NETDEV_KIND_GRE &&
+ netdev->kind != NETDEV_KIND_VTI) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "NetDev is not a tunnel, ignoring assignment: %s", rvalue);
+ return 0;
+ }
+
+ r = hashmap_put(network->stacked_netdevs, netdev->ifname, netdev);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "Can not add VLAN '%s' to network: %s",
+ rvalue, strerror(-r));
+ return 0;
+ }
+
+ netdev_ref(netdev);
+
+ return 0;
+}
+
+static const char* const dhcp_support_table[_DHCP_SUPPORT_MAX] = {
+ [DHCP_SUPPORT_NONE] = "none",
+ [DHCP_SUPPORT_BOTH] = "both",
+ [DHCP_SUPPORT_V4] = "v4",
+ [DHCP_SUPPORT_V6] = "v6",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(dhcp_support, DHCPSupport);
+
+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) {
+
+ DHCPSupport *dhcp = data;
+ int k;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ /* 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)
+ *dhcp = DHCP_SUPPORT_BOTH;
+ else if (k == 0)
+ *dhcp = DHCP_SUPPORT_NONE;
+ else {
+ DHCPSupport s;
+
+ s = dhcp_support_from_string(rvalue);
+ if (s < 0){
+ log_syntax(unit, LOG_ERR, filename, line, -s, "Failed to parse DHCP option, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *dhcp = s;
+ }
+
+ return 0;
+}
+
+static const char* const llmnr_support_table[_LLMNR_SUPPORT_MAX] = {
+ [LLMNR_SUPPORT_NO] = "no",
+ [LLMNR_SUPPORT_YES] = "yes",
+ [LLMNR_SUPPORT_RESOLVE] = "resolve",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(llmnr_support, LLMNRSupport);
+
+int config_parse_llmnr(
+ 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) {
+
+ LLMNRSupport *llmnr = data;
+ int k;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ /* 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)
+ *llmnr = LLMNR_SUPPORT_YES;
+ else if (k == 0)
+ *llmnr = LLMNR_SUPPORT_NO;
+ else {
+ LLMNRSupport s;
+
+ s = llmnr_support_from_string(rvalue);
+ if (s < 0){
+ log_syntax(unit, LOG_ERR, filename, line, -s, "Failed to parse LLMNR option, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *llmnr = s;
+ }
+
return 0;
}
~ianmdlvl / elogind.git / blobdiff