const char *name) {
_cleanup_free_ char *normalized = NULL;
- DnsSearchDomain *d, *tail;
+ DnsSearchDomain *d;
int r;
assert(m);
if (r > 0)
return -EINVAL;
+ if (l) {
+ if (l->n_search_domains >= LINK_SEARCH_DOMAINS_MAX)
+ return -E2BIG;
+ } else {
+ if (m->n_search_domains >= MANAGER_SEARCH_DOMAINS_MAX)
+ return -E2BIG;
+ }
+
d = new0(DnsSearchDomain, 1);
if (!d)
return -ENOMEM;
case DNS_SEARCH_DOMAIN_LINK:
d->link = l;
- LIST_FIND_TAIL(domains, l->search_domains, tail);
- LIST_INSERT_AFTER(domains, l->search_domains, tail, d);
+ LIST_APPEND(domains, l->search_domains, d);
+ l->n_search_domains++;
break;
case DNS_SERVER_SYSTEM:
- LIST_FIND_TAIL(domains, m->search_domains, tail);
- LIST_INSERT_AFTER(domains, m->search_domains, tail, d);
+ LIST_APPEND(domains, m->search_domains, d);
+ m->n_search_domains++;
break;
default:
case DNS_SEARCH_DOMAIN_LINK:
assert(d->link);
+ assert(d->link->n_search_domains > 0);
LIST_REMOVE(domains, d->link->search_domains, d);
+ d->link->n_search_domains--;
break;
case DNS_SEARCH_DOMAIN_SYSTEM:
+ assert(d->manager->n_search_domains > 0);
LIST_REMOVE(domains, d->manager->search_domains, d);
+ d->manager->n_search_domains--;
break;
}
int family,
const union in_addr_union *in_addr) {
- DnsServer *s, *tail;
+ DnsServer *s;
assert(m);
assert((type == DNS_SERVER_LINK) == !!l);
assert(in_addr);
+ if (!IN_SET(family, AF_INET, AF_INET6))
+ return -EAFNOSUPPORT;
+
+ if (l) {
+ if (l->n_dns_servers >= LINK_DNS_SERVERS_MAX)
+ return -E2BIG;
+ } else {
+ if (m->n_dns_servers >= MANAGER_DNS_SERVERS_MAX)
+ return -E2BIG;
+ }
+
s = new0(DnsServer, 1);
if (!s)
return -ENOMEM;
case DNS_SERVER_LINK:
s->link = l;
- LIST_FIND_TAIL(servers, l->dns_servers, tail);
- LIST_INSERT_AFTER(servers, l->dns_servers, tail, s);
+ LIST_APPEND(servers, l->dns_servers, s);
+ l->n_dns_servers++;
break;
case DNS_SERVER_SYSTEM:
- LIST_FIND_TAIL(servers, m->dns_servers, tail);
- LIST_INSERT_AFTER(servers, m->dns_servers, tail, s);
+ LIST_APPEND(servers, m->dns_servers, s);
+ m->n_dns_servers++;
break;
case DNS_SERVER_FALLBACK:
- LIST_FIND_TAIL(servers, m->fallback_dns_servers, tail);
- LIST_INSERT_AFTER(servers, m->fallback_dns_servers, tail, s);
+ LIST_APPEND(servers, m->fallback_dns_servers, s);
+ m->n_dns_servers++;
break;
default:
case DNS_SERVER_LINK:
assert(s->link);
+ assert(s->link->n_dns_servers > 0);
LIST_REMOVE(servers, s->link->dns_servers, s);
break;
case DNS_SERVER_SYSTEM:
+ assert(s->manager->n_dns_servers > 0);
LIST_REMOVE(servers, s->manager->dns_servers, s);
+ s->manager->n_dns_servers--;
break;
case DNS_SERVER_FALLBACK:
+ assert(s->manager->n_dns_servers > 0);
LIST_REMOVE(servers, s->manager->fallback_dns_servers, s);
+ s->manager->n_dns_servers--;
break;
}
#include "resolved-dns-server.h"
#include "resolved-manager.h"
+#define LINK_SEARCH_DOMAINS_MAX 32
+#define LINK_DNS_SERVERS_MAX 32
+
struct LinkAddress {
Link *link;
LIST_HEAD(DnsServer, dns_servers);
DnsServer *current_dns_server;
+ unsigned n_dns_servers;
LIST_HEAD(DnsSearchDomain, search_domains);
+ unsigned n_search_domains;
Support llmnr_support;
#include "resolved-dns-stream.h"
#include "resolved-link.h"
+#define MANAGER_SEARCH_DOMAINS_MAX 32
+#define MANAGER_DNS_SERVERS_MAX 32
+
struct Manager {
sd_event *event;
/* Unicast dns */
LIST_HEAD(DnsServer, dns_servers);
LIST_HEAD(DnsServer, fallback_dns_servers);
+ unsigned n_dns_servers; /* counts both main and fallback */
DnsServer *current_dns_server;
LIST_HEAD(DnsSearchDomain, search_domains);
+ unsigned n_search_domains;
bool need_builtin_fallbacks:1;