-/*-*- 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/>.
-***/
+/* SPDX-License-Identifier: LGPL-2.1+ */
+#include "condition.h"
#include "conf-parser.h"
#include "networkd-util.h"
#include "parse-util.h"
#include "string-util.h"
#include "util.h"
-const char *address_family_boolean_to_string(AddressFamilyBoolean b) {
- if (b == ADDRESS_FAMILY_YES ||
- b == ADDRESS_FAMILY_NO)
- return yes_no(b == ADDRESS_FAMILY_YES);
-
- if (b == ADDRESS_FAMILY_IPV4)
- return "ipv4";
- if (b == ADDRESS_FAMILY_IPV6)
- return "ipv6";
-
- return NULL;
-}
-
-AddressFamilyBoolean address_family_boolean_from_string(const char *s) {
- int r;
-
- /* Make this a true superset of a boolean */
-
- r = parse_boolean(s);
- if (r > 0)
- return ADDRESS_FAMILY_YES;
- if (r == 0)
- return ADDRESS_FAMILY_NO;
-
- if (streq(s, "ipv4"))
- return ADDRESS_FAMILY_IPV4;
- if (streq(s, "ipv6"))
- return ADDRESS_FAMILY_IPV6;
+static const char * const address_family_boolean_table[_ADDRESS_FAMILY_BOOLEAN_MAX] = {
+ [ADDRESS_FAMILY_NO] = "no",
+ [ADDRESS_FAMILY_YES] = "yes",
+ [ADDRESS_FAMILY_IPV4] = "ipv4",
+ [ADDRESS_FAMILY_IPV6] = "ipv6",
+};
- return _ADDRESS_FAMILY_BOOLEAN_INVALID;
-}
+static const char * const link_local_address_family_boolean_table[_ADDRESS_FAMILY_BOOLEAN_MAX] = {
+ [ADDRESS_FAMILY_NO] = "no",
+ [ADDRESS_FAMILY_YES] = "yes",
+ [ADDRESS_FAMILY_IPV4] = "ipv4",
+ [ADDRESS_FAMILY_IPV6] = "ipv6",
+ [ADDRESS_FAMILY_FALLBACK] = "fallback",
+ [ADDRESS_FAMILY_FALLBACK_IPV4] = "ipv4-fallback",
+};
-DEFINE_CONFIG_PARSE_ENUM(config_parse_address_family_boolean, address_family_boolean, AddressFamilyBoolean, "Failed to parse option");
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(address_family_boolean, AddressFamilyBoolean, ADDRESS_FAMILY_YES);
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(link_local_address_family_boolean, AddressFamilyBoolean, ADDRESS_FAMILY_YES);
+DEFINE_CONFIG_PARSE_ENUM(config_parse_link_local_address_family_boolean, link_local_address_family_boolean,
+ AddressFamilyBoolean, "Failed to parse option");
int config_parse_address_family_boolean_with_kernel(
const char* unit,
assert(rvalue);
assert(data);
+ /* This function is mostly obsolete now. It simply redirects
+ * "kernel" to "no". In older networkd versions we used to
+ * distinguish IPForward=off from IPForward=kernel, where the
+ * former would explicitly turn off forwarding while the
+ * latter would simply not touch the setting. But that logic
+ * is gone, hence silently accept the old setting, but turn it
+ * to "no". */
+
s = address_family_boolean_from_string(rvalue);
if (s < 0) {
if (streq(rvalue, "kernel"))
- s = _ADDRESS_FAMILY_BOOLEAN_INVALID;
+ s = ADDRESS_FAMILY_NO;
else {
log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse IPForward= option, ignoring: %s", rvalue);
return 0;
return 0;
}
-static const char* const resolve_support_table[_RESOLVE_SUPPORT_MAX] = {
- [RESOLVE_SUPPORT_NO] = "no",
- [RESOLVE_SUPPORT_YES] = "yes",
- [RESOLVE_SUPPORT_RESOLVE] = "resolve",
-};
+/* Router lifetime can be set with netlink interface since kernel >= 4.5
+ * so for the supported kernel we don't need to expire routes in userspace */
+int kernel_route_expiration_supported(void) {
+ static int cached = -1;
+ int r;
-DEFINE_STRING_TABLE_LOOKUP(resolve_support, ResolveSupport);
+ if (cached < 0) {
+ Condition c = {
+ .type = CONDITION_KERNEL_VERSION,
+ .parameter = (char *) ">= 4.5"
+ };
+ r = condition_test(&c);
+ if (r < 0)
+ return r;
-int config_parse_resolve(
- 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) {
+ cached = r;
+ }
+ return cached;
+}
- ResolveSupport *resolve = data;
- int k;
+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);
+}
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(resolve);
-
- /* 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)
- *resolve = RESOLVE_SUPPORT_YES;
- else if (k == 0)
- *resolve = RESOLVE_SUPPORT_NO;
- else {
- ResolveSupport s;
-
- s = resolve_support_from_string(rvalue);
- if (s < 0){
- log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse %s= option, ignoring: %s", lvalue, rvalue);
- return 0;
- }
+static int network_config_compare_func(const NetworkConfigSection *x, const NetworkConfigSection *y) {
+ int r;
- *resolve = s;
- }
+ r = strcmp(x->filename, y->filename);
+ if (r != 0)
+ return r;
+
+ return CMP(x->line, y->line);
+}
+
+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;
+
+ cs = malloc0(offsetof(NetworkConfigSection, filename) + strlen(filename) + 1);
+ if (!cs)
+ return -ENOMEM;
+
+ strcpy(cs->filename, filename);
+ cs->line = line;
+
+ *s = TAKE_PTR(cs);
return 0;
}
+
+void network_config_section_free(NetworkConfigSection *cs) {
+ free(cs);
+}
projects / thirdparty / systemd.git / blobdiff