diff options
Diffstat (limited to 'src/resolve')
-rw-r--r-- | src/resolve/resolved-dns-server.c | 94 | ||||
-rw-r--r-- | src/resolve/resolved-dns-server.h | 5 | ||||
-rw-r--r-- | src/resolve/resolved-manager.c | 91 | ||||
-rw-r--r-- | src/resolve/resolved-manager.h | 5 |
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); |