X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fnetwork%2Fnetworkd-network.c;h=3ebd4d7d588180e897a837373322d0ef000f24f8;hp=9533aff8e32cc85163d910404c464b693990ef79;hb=e2acdb6b0f68d9b4152708a9f21bf9e11f8b9e7e;hpb=7384fa923e1ba403454903133b33f559b735fe75
diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index 9533aff8e..3ebd4d7d5 100644
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -19,15 +19,24 @@
along with systemd; If not, see .
***/
-#include "networkd.h"
-#include "net-util.h"
+#include
+#include
+
#include "path-util.h"
#include "conf-files.h"
#include "conf-parser.h"
+#include "util.h"
+#include "networkd.h"
+#include "networkd-netdev.h"
+#include "networkd-link.h"
+#include "network-internal.h"
static int network_load_one(Manager *manager, const char *filename) {
_cleanup_network_free_ Network *network = NULL;
_cleanup_fclose_ FILE *file = NULL;
+ char *d;
+ Route *route;
+ Address *address;
int r;
assert(manager);
@@ -38,7 +47,12 @@ static int network_load_one(Manager *manager, const char *filename) {
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);
@@ -49,27 +63,97 @@ static int network_load_one(Manager *manager, const char *filename) {
LIST_HEAD_INIT(network->static_addresses);
LIST_HEAD_INIT(network->static_routes);
+ LIST_HEAD_INIT(network->static_fdb_entries);
- network->addresses_by_section = hashmap_new(uint64_hash_func, uint64_compare_func);
+ 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();
- network->routes_by_section = hashmap_new(uint64_hash_func, uint64_compare_func);
+ network->routes_by_section = hashmap_new(NULL);
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->filename = strdup(filename);
if (!network->filename)
return log_oom();
- r = config_parse(NULL, filename, file, "Match\0Network\0Address\0Route\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));
+ network->name = strdup(basename(filename));
+ if (!network->name)
+ return log_oom();
+
+ d = strrchr(network->name, '.');
+ if (!d)
+ return -EINVAL;
+
+ assert(streq(d, ".network"));
+
+ *d = '\0';
+
+ network->dhcp = ADDRESS_FAMILY_NO;
+ 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;
+
+ network->link_local = ADDRESS_FAMILY_IPV6;
+
+ r = config_parse(NULL, filename, file,
+ "Match\0"
+ "Link\0"
+ "Network\0"
+ "Address\0"
+ "Route\0"
+ "DHCP\0"
+ "DHCPv4\0"
+ "Bridge\0"
+ "BridgeFDB\0",
+ config_item_perf_lookup, network_network_gperf_lookup,
+ false, false, true, network);
+ if (r < 0)
return r;
- }
+
+ /* IPMasquerade=yes implies IPForward=yes */
+ if (network->ip_masquerade)
+ network->ip_forward |= ADDRESS_FAMILY_IPV4;
LIST_PREPEND(networks, manager->networks, network);
+
+ r = hashmap_ensure_allocated(&manager->networks_by_name, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ r = hashmap_put(manager->networks_by_name, network->name, network);
+ if (r < 0)
+ return r;
+
+ 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;
@@ -77,7 +161,8 @@ static int network_load_one(Manager *manager, const char *filename) {
int network_load(Manager *manager) {
Network *network;
- char **files, **f;
+ _cleanup_strv_free_ char **files = NULL;
+ char **f;
int r;
assert(manager);
@@ -85,11 +170,9 @@ int network_load(Manager *manager) {
while ((network = manager->networks))
network_free(network);
- 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);
@@ -97,20 +180,19 @@ int network_load(Manager *manager) {
return r;
}
- strv_free(files);
-
return 0;
}
void network_free(Network *network) {
+ NetDev *netdev;
Route *route;
Address *address;
+ FdbEntry *fdb_entry;
+ Iterator i;
if (!network)
return;
- assert(network->manager);
-
free(network->filename);
free(network->match_mac);
@@ -120,6 +202,23 @@ void network_free(Network *network) {
free(network->match_name);
free(network->description);
+ free(network->dhcp_vendor_class_identifier);
+
+ free(network->mac);
+
+ strv_free(network->ntp);
+ strv_free(network->dns);
+ strv_free(network->domains);
+
+ 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);
@@ -127,37 +226,83 @@ void network_free(Network *network) {
while ((address = network->static_addresses))
address_free(address);
+ while ((fdb_entry = network->static_fdb_entries))
+ fdb_entry_free(fdb_entry);
+
hashmap_free(network->addresses_by_section);
hashmap_free(network->routes_by_section);
+ hashmap_free(network->fdb_entries_by_section);
- if (network->manager->networks)
- LIST_REMOVE(networks, network->manager->networks, network);
+ if (network->manager) {
+ if (network->manager->networks)
+ LIST_REMOVE(networks, network->manager->networks, network);
+
+ if (network->manager->networks_by_name)
+ hashmap_remove(network->manager->networks_by_name, network->name);
+ }
+
+ free(network->name);
+
+ 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_by_name(Manager *manager, const char *name, Network **ret) {
Network *network;
assert(manager);
- assert(device);
+ assert(name);
assert(ret);
- if (manager_should_reload(manager))
- manager_load_config(manager);
+ network = hashmap_get(manager->networks_by_name, name);
+ if (!network)
+ return -ENOENT;
+
+ *ret = network;
+
+ return 0;
+}
+
+int network_get(Manager *manager, struct udev_device *device,
+ const char *ifname, const struct ether_addr *address,
+ Network **ret) {
+ Network *network;
+
+ assert(manager);
+ assert(ret);
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("%s: found matching network '%s'",
- udev_device_get_sysname(device),
- network->filename);
+ 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)) {
+ if (network->match_name) {
+ const char *attr;
+ uint8_t name_assign_type = NET_NAME_UNKNOWN;
+
+ attr = udev_device_get_sysattr_value(device, "name_assign_type");
+ if (attr)
+ (void)safe_atou8(attr, &name_assign_type);
+
+ if (name_assign_type == NET_NAME_ENUM)
+ log_warning("%-*s: found matching network '%s', based on potentially unpredictable ifname",
+ IFNAMSIZ, ifname, network->filename);
+ else
+ log_debug("%-*s: found matching network '%s'", IFNAMSIZ, ifname, network->filename);
+ } else
+ log_debug("%-*s: found matching network '%s'", IFNAMSIZ, ifname, network->filename);
+
*ret = network;
return 0;
}
@@ -173,14 +318,36 @@ int network_apply(Manager *manager, Network *network, Link *link) {
link->network = network;
- r = link_configure(link);
- if (r < 0)
- return r;
+ 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_bridge(const char *unit,
+int config_parse_netdev(const char *unit,
const char *filename,
unsigned line,
const char *section,
@@ -191,7 +358,10 @@ int config_parse_bridge(const char *unit,
void *data,
void *userdata) {
Network *network = userdata;
- Bridge *bridge;
+ _cleanup_free_ char *kind_string = NULL;
+ char *p;
+ NetDev *netdev;
+ NetDevKind kind;
int r;
assert(filename);
@@ -199,14 +369,327 @@ int config_parse_bridge(const char *unit,
assert(rvalue);
assert(data);
- r = bridge_get(network->manager, rvalue, &bridge);
+ 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,
- "Bridge is invalid, ignoring assignment: %s", rvalue);
+ "%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_IPVLAN:
+ 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_GRETAP &&
+ netdev->kind != NETDEV_KIND_IP6GRE &&
+ netdev->kind != NETDEV_KIND_IP6GRETAP &&
+ netdev->kind != NETDEV_KIND_VTI &&
+ netdev->kind != NETDEV_KIND_IP6TNL
+ ) {
+ 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;
+}
+
+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 */
+
+ if (parse_boolean(rvalue))
+ *link_local |= ADDRESS_FAMILY_IPV4;
+ else
+ *link_local &= ~ADDRESS_FAMILY_IPV4;
+
+ 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, 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(llmnr);
+
+ /* 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;
+}
+
+int config_parse_token(
+ 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 can not 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, EINVAL, "IPv6 token can not be longer than 64 bits, ignoring: %s", rvalue);
return 0;
}
- network->bridge = bridge;
+ *token = buffer.in6;
return 0;
}