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authorLennart Poettering <lennart@poettering.net>2015-11-24 17:03:12 +0100
committerLennart Poettering <lennart@poettering.net>2015-11-25 21:58:37 +0100
commitf2f1dbe50fea13abadc9c1e845a29031b90b40f3 (patch)
treef1ffeb91f88f74a9e320ea19b057e88f35babca0 /src/resolve
parent84129d46cd6e95e142973da93aede4c7433c9600 (diff)
resolved: move dns server picking code from resolved-manager.c to resolved-dns-server.c
Diffstat (limited to 'src/resolve')
-rw-r--r--src/resolve/resolved-dns-server.c94
-rw-r--r--src/resolve/resolved-dns-server.h5
-rw-r--r--src/resolve/resolved-manager.c91
-rw-r--r--src/resolve/resolved-manager.h5
4 files changed, 99 insertions, 96 deletions
diff --git a/src/resolve/resolved-dns-server.c b/src/resolve/resolved-dns-server.c
index 8b88a3d690..207ec4c603 100644
--- a/src/resolve/resolved-dns-server.c
+++ b/src/resolve/resolved-dns-server.c
@@ -21,7 +21,9 @@
#include "alloc-util.h"
#include "resolved-dns-server.h"
+#include "resolved-resolv-conf.h"
#include "siphash24.h"
+#include "string-util.h"
/* After how much time to repeat classic DNS requests */
#define DNS_TIMEOUT_MIN_USEC (500 * USEC_PER_MSEC)
@@ -205,3 +207,95 @@ void manager_mark_dns_servers(Manager *m, DnsServerType type) {
LIST_FOREACH(servers, s, first)
s->marked = true;
}
+
+DnsServer* manager_find_dns_server(Manager *m, int family, const union in_addr_union *in_addr) {
+ DnsServer *s;
+
+ assert(m);
+ assert(in_addr);
+
+ LIST_FOREACH(servers, s, m->dns_servers)
+ if (s->family == family && in_addr_equal(family, &s->address, in_addr) > 0)
+ return s;
+
+ LIST_FOREACH(servers, s, m->fallback_dns_servers)
+ if (s->family == family && in_addr_equal(family, &s->address, in_addr) > 0)
+ return s;
+
+ return NULL;
+}
+
+DnsServer *manager_set_dns_server(Manager *m, DnsServer *s) {
+ assert(m);
+
+ if (m->current_dns_server == s)
+ return s;
+
+ if (s) {
+ _cleanup_free_ char *ip = NULL;
+
+ in_addr_to_string(s->family, &s->address, &ip);
+ log_info("Switching to system DNS server %s.", strna(ip));
+ }
+
+ m->current_dns_server = s;
+
+ if (m->unicast_scope)
+ dns_cache_flush(&m->unicast_scope->cache);
+
+ return s;
+}
+
+DnsServer *manager_get_dns_server(Manager *m) {
+ Link *l;
+ assert(m);
+
+ /* Try to read updates resolv.conf */
+ manager_read_resolv_conf(m);
+
+ /* If no DNS server was chose so far, pick the first one */
+ if (!m->current_dns_server)
+ manager_set_dns_server(m, m->dns_servers);
+
+ if (!m->current_dns_server) {
+ bool found = false;
+ Iterator i;
+
+ /* No DNS servers configured, let's see if there are
+ * any on any links. If not, we use the fallback
+ * servers */
+
+ HASHMAP_FOREACH(l, m->links, i)
+ if (l->dns_servers) {
+ found = true;
+ break;
+ }
+
+ if (!found)
+ manager_set_dns_server(m, m->fallback_dns_servers);
+ }
+
+ return m->current_dns_server;
+}
+
+void manager_next_dns_server(Manager *m) {
+ assert(m);
+
+ /* If there's currently no DNS server set, then the next
+ * manager_get_dns_server() will find one */
+ if (!m->current_dns_server)
+ return;
+
+ /* Change to the next one */
+ if (m->current_dns_server->servers_next) {
+ manager_set_dns_server(m, m->current_dns_server->servers_next);
+ return;
+ }
+
+ /* If there was no next one, then start from the beginning of
+ * the list */
+ if (m->current_dns_server->type == DNS_SERVER_FALLBACK)
+ manager_set_dns_server(m, m->fallback_dns_servers);
+ else
+ manager_set_dns_server(m, m->dns_servers);
+}
diff --git a/src/resolve/resolved-dns-server.h b/src/resolve/resolved-dns-server.h
index 51cae62e42..49b550c1ff 100644
--- a/src/resolve/resolved-dns-server.h
+++ b/src/resolve/resolved-dns-server.h
@@ -68,6 +68,11 @@ DnsServer* dns_server_unref(DnsServer *s);
void dns_server_packet_received(DnsServer *s, usec_t rtt);
void dns_server_packet_lost(DnsServer *s, usec_t usec);
+DnsServer *manager_set_dns_server(Manager *m, DnsServer *s);
+DnsServer *manager_find_dns_server(Manager *m, int family, const union in_addr_union *in_addr);
+DnsServer *manager_get_dns_server(Manager *m);
+void manager_next_dns_server(Manager *m);
+
void manager_flush_dns_servers(Manager *m, DnsServerType t);
void manager_flush_marked_dns_servers(Manager *m, DnsServerType type);
void manager_mark_dns_servers(Manager *m, DnsServerType type);
diff --git a/src/resolve/resolved-manager.c b/src/resolve/resolved-manager.c
index 23806aa30b..f991dd72fc 100644
--- a/src/resolve/resolved-manager.c
+++ b/src/resolve/resolved-manager.c
@@ -886,97 +886,6 @@ int manager_send(Manager *m, int fd, int ifindex, int family, const union in_add
return -EAFNOSUPPORT;
}
-DnsServer* manager_find_dns_server(Manager *m, int family, const union in_addr_union *in_addr) {
- DnsServer *s;
-
- assert(m);
- assert(in_addr);
-
- LIST_FOREACH(servers, s, m->dns_servers)
- if (s->family == family && in_addr_equal(family, &s->address, in_addr) > 0)
- return s;
-
- LIST_FOREACH(servers, s, m->fallback_dns_servers)
- if (s->family == family && in_addr_equal(family, &s->address, in_addr) > 0)
- return s;
-
- return NULL;
-}
-
-DnsServer *manager_set_dns_server(Manager *m, DnsServer *s) {
- assert(m);
-
- if (m->current_dns_server == s)
- return s;
-
- if (s) {
- _cleanup_free_ char *ip = NULL;
-
- in_addr_to_string(s->family, &s->address, &ip);
- log_info("Switching to system DNS server %s.", strna(ip));
- }
-
- m->current_dns_server = s;
-
- if (m->unicast_scope)
- dns_cache_flush(&m->unicast_scope->cache);
-
- return s;
-}
-
-DnsServer *manager_get_dns_server(Manager *m) {
- Link *l;
- assert(m);
-
- /* Try to read updates resolv.conf */
- manager_read_resolv_conf(m);
-
- if (!m->current_dns_server)
- manager_set_dns_server(m, m->dns_servers);
-
- if (!m->current_dns_server) {
- bool found = false;
- Iterator i;
-
- /* No DNS servers configured, let's see if there are
- * any on any links. If not, we use the fallback
- * servers */
-
- HASHMAP_FOREACH(l, m->links, i)
- if (l->dns_servers) {
- found = true;
- break;
- }
-
- if (!found)
- manager_set_dns_server(m, m->fallback_dns_servers);
- }
-
- return m->current_dns_server;
-}
-
-void manager_next_dns_server(Manager *m) {
- assert(m);
-
- /* If there's currently no DNS server set, then the next
- * manager_get_dns_server() will find one */
- if (!m->current_dns_server)
- return;
-
- /* Change to the next one */
- if (m->current_dns_server->servers_next) {
- manager_set_dns_server(m, m->current_dns_server->servers_next);
- return;
- }
-
- /* If there was no next one, then start from the beginning of
- * the list */
- if (m->current_dns_server->type == DNS_SERVER_FALLBACK)
- manager_set_dns_server(m, m->fallback_dns_servers);
- else
- manager_set_dns_server(m, m->dns_servers);
-}
-
uint32_t manager_find_mtu(Manager *m) {
uint32_t mtu = 0;
Link *l;
diff --git a/src/resolve/resolved-manager.h b/src/resolve/resolved-manager.h
index 23ee1f6bc5..08dd61fb14 100644
--- a/src/resolve/resolved-manager.h
+++ b/src/resolve/resolved-manager.h
@@ -114,11 +114,6 @@ Manager* manager_free(Manager *m);
int manager_start(Manager *m);
-DnsServer *manager_set_dns_server(Manager *m, DnsServer *s);
-DnsServer *manager_find_dns_server(Manager *m, int family, const union in_addr_union *in_addr);
-DnsServer *manager_get_dns_server(Manager *m);
-void manager_next_dns_server(Manager *m);
-
uint32_t manager_find_mtu(Manager *m);
int manager_write(Manager *m, int fd, DnsPacket *p);