-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/***
Copyright © 2017 Intel Corporation. All rights reserved.
***/
return 0;
}
-void network_verify_prefixes(Network *network) {
+void network_drop_invalid_prefixes(Network *network) {
Prefix *prefix;
assert(network);
prefix_free(prefix);
}
-void network_verify_route_prefixes(Network *network) {
+void network_drop_invalid_route_prefixes(Network *network) {
RoutePrefix *prefix;
assert(network);
route_prefix_free(prefix);
}
+void network_adjust_radv(Network *network) {
+ assert(network);
+
+ /* After this function is called, network->router_prefix_delegation can be treated as a boolean. */
+
+ if (network->dhcp6_pd < 0)
+ /* For backward compatibility. */
+ network->dhcp6_pd = FLAGS_SET(network->router_prefix_delegation, RADV_PREFIX_DELEGATION_DHCP6);
+
+ if (!FLAGS_SET(network->link_local, ADDRESS_FAMILY_IPV6)) {
+ if (network->router_prefix_delegation != RADV_PREFIX_DELEGATION_NONE)
+ log_warning("%s: IPv6PrefixDelegation= is enabled but IPv6 link local addressing is disabled. "
+ "Disabling IPv6PrefixDelegation=.", network->filename);
+
+ network->router_prefix_delegation = RADV_PREFIX_DELEGATION_NONE;
+ }
+
+ if (network->router_prefix_delegation == RADV_PREFIX_DELEGATION_NONE) {
+ network->n_router_dns = 0;
+ network->router_dns = mfree(network->router_dns);
+ network->router_search_domains = ordered_set_free(network->router_search_domains);
+ }
+
+ if (!FLAGS_SET(network->router_prefix_delegation, RADV_PREFIX_DELEGATION_STATIC)) {
+ network->prefixes_by_section = hashmap_free_with_destructor(network->prefixes_by_section, prefix_free);
+ network->route_prefixes_by_section = hashmap_free_with_destructor(network->route_prefixes_by_section, route_prefix_free);
+ }
+}
+
int config_parse_prefix(
const char *unit,
const char *filename,
return 0;
}
+static bool link_radv_enabled(Link *link) {
+ assert(link);
+
+ if (!link_ipv6ll_enabled(link))
+ return false;
+
+ return link->network->router_prefix_delegation;
+}
+
int radv_configure(Link *link) {
+ RoutePrefix *q;
+ Prefix *p;
int r;
assert(link);
assert(link->network);
+ if (!link_radv_enabled(link))
+ return 0;
+
r = sd_radv_new(&link->radv);
if (r < 0)
return r;
- r = sd_radv_attach_event(link->radv, NULL, 0);
+ r = sd_radv_attach_event(link->radv, link->manager->event, 0);
if (r < 0)
return r;
- r = sd_radv_set_mac(link->radv, &link->mac);
+ r = sd_radv_set_mac(link->radv, &link->hw_addr.addr.ether);
if (r < 0)
return r;
return r;
}
- if (link->network->router_prefix_delegation & RADV_PREFIX_DELEGATION_STATIC) {
- RoutePrefix *q;
- Prefix *p;
-
- HASHMAP_FOREACH(p, link->network->prefixes_by_section) {
- r = sd_radv_add_prefix(link->radv, p->radv_prefix, false);
- if (r == -EEXIST)
- continue;
- if (r == -ENOEXEC) {
- log_link_warning_errno(link, r, "[IPv6Prefix] section configured without Prefix= setting, ignoring section.");
- continue;
- }
- if (r < 0)
- return r;
+ HASHMAP_FOREACH(p, link->network->prefixes_by_section) {
+ r = sd_radv_add_prefix(link->radv, p->radv_prefix, false);
+ if (r == -EEXIST)
+ continue;
+ if (r == -ENOEXEC) {
+ log_link_warning_errno(link, r, "[IPv6Prefix] section configured without Prefix= setting, ignoring section.");
+ continue;
}
+ if (r < 0)
+ return r;
+ }
- HASHMAP_FOREACH(q, link->network->route_prefixes_by_section) {
- r = sd_radv_add_route_prefix(link->radv, q->radv_route_prefix, false);
- if (r == -EEXIST)
- continue;
- if (r < 0)
- return r;
- }
+ HASHMAP_FOREACH(q, link->network->route_prefixes_by_section) {
+ r = sd_radv_add_route_prefix(link->radv, q->radv_route_prefix, false);
+ if (r == -EEXIST)
+ continue;
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int radv_update_mac(Link *link) {
+ bool restart;
+ int r;
+
+ assert(link);
+
+ if (!link->radv)
+ return 0;
+
+ restart = sd_radv_is_running(link->radv);
+
+ r = sd_radv_stop(link->radv);
+ if (r < 0)
+ return r;
+
+ r = sd_radv_set_mac(link->radv, &link->hw_addr.addr.ether);
+ if (r < 0)
+ return r;
+
+ if (restart) {
+ r = sd_radv_start(link->radv);
+ if (r < 0)
+ return r;
}
return 0;
assert(lvalue);
assert(rvalue);
+ if (isempty(rvalue)) {
+ n->n_router_dns = 0;
+ n->router_dns = mfree(n->router_dns);
+ return 0;
+ }
+
for (const char *p = rvalue;;) {
_cleanup_free_ char *w = NULL;
union in_addr_union a;
assert(lvalue);
assert(rvalue);
+ if (isempty(rvalue)) {
+ n->router_search_domains = ordered_set_free(n->router_search_domains);
+ return 0;
+ }
+
for (const char *p = rvalue;;) {
_cleanup_free_ char *w = NULL, *idna = NULL;
/* transfer ownership to simplify subsequent operations */
idna = TAKE_PTR(w);
- r = ordered_set_ensure_allocated(&n->router_search_domains, &string_hash_ops);
+ r = ordered_set_ensure_allocated(&n->router_search_domains, &string_hash_ops_free);
if (r < 0)
return log_oom();
RADVPrefixDelegation,
RADV_PREFIX_DELEGATION_BOTH);
-DEFINE_CONFIG_PARSE_ENUM(
- config_parse_router_prefix_delegation,
- radv_prefix_delegation,
- RADVPrefixDelegation,
- "Invalid router prefix delegation");
+int config_parse_router_prefix_delegation(
+ 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) {
+
+ RADVPrefixDelegation val, *ra = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (streq(lvalue, "IPv6SendRA")) {
+ r = parse_boolean(rvalue);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r,
+ "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue);
+ return 0;
+ }
+
+ /* When IPv6SendRA= is enabled, only static prefixes are sent by default, and users
+ * need to explicitly enable DHCPv6PrefixDelegation=. */
+ *ra = r ? RADV_PREFIX_DELEGATION_STATIC : RADV_PREFIX_DELEGATION_NONE;
+ return 0;
+ }
+
+ /* For backward compatibility */
+ val = radv_prefix_delegation_from_string(rvalue);
+ if (val < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0,
+ "Invalid %s= setting, ignoring assignment: %s", lvalue, rvalue);
+ return 0;
+ }
+
+ *ra = val;
+ return 0;
+}
int config_parse_router_preference(
const char *unit,