+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2013 Tom Gundersen <teg@jklm.no>
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <ctype.h>
-#include <net/if.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);
- assert(filename);
-
- file = fopen(filename, "re");
- if (!file) {
- if (errno == ENOENT)
- return 0;
- else
- 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();
-
- network->manager = manager;
-
- LIST_HEAD_INIT(network->static_addresses);
- LIST_HEAD_INIT(network->static_routes);
- LIST_HEAD_INIT(network->static_fdb_entries);
-
- 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(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();
-
- 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->dhcp_client_identifier = DHCP_CLIENT_ID_DUID;
-
- 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;
-}
-
-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);
-
- 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);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-
-void network_free(Network *network) {
- NetDev *netdev;
- Route *route;
- Address *address;
- FdbEntry *fdb_entry;
- Iterator i;
-
- if (!network)
- return;
-
- free(network->filename);
-
- free(network->match_mac);
- strv_free(network->match_path);
- strv_free(network->match_driver);
- strv_free(network->match_type);
- strv_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);
- strv_free(network->bind_carrier);
-
- 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->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) {
- 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_by_name(Manager *manager, const char *name, Network **ret) {
- Network *network;
-
- assert(manager);
- assert(name);
- assert(ret);
-
- 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;
- struct udev_device *parent;
- const char *path, *parent_driver, *driver, *devtype;
-
- assert(manager);
- assert(ret);
- assert(device);
-
- path = udev_device_get_property_value(device, "ID_PATH");
-
- parent = udev_device_get_parent(device);
- if (parent)
- parent_driver = udev_device_get_driver(parent);
- else
- parent_driver = NULL;
-
- driver = udev_device_get_property_value(device, "ID_NET_DRIVER");
-
- devtype = udev_device_get_devtype(device);
-
- 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, network->match_host,
- network->match_virt, network->match_kernel,
- network->match_arch,
- address, path, parent_driver, driver,
- devtype, 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;
- }
- }
-
- *ret = NULL;
-
- return -ENOENT;
-}
-
-int network_apply(Manager *manager, Network *network, Link *link) {
- int r;
-
- link->network = network;
-
- 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_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 dhcp_client_identifier_table[_DHCP_CLIENT_ID_MAX] = {
- [DHCP_CLIENT_ID_MAC] = "mac",
- [DHCP_CLIENT_ID_DUID] = "duid"
-};
-
-DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(dhcp_client_identifier, DCHPClientIdentifier);
-DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp_client_identifier, dhcp_client_identifier, DCHPClientIdentifier, "Failed to parse client identifier type");
-
-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_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 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;
- }
-
- *token = buffer.in6;
-
- return 0;
-}
~ianmdlvl / elogind.git / blobdiff