diff options
Diffstat (limited to 'src/resolve')
| -rw-r--r-- | src/resolve/resolved-dns-scope.c | 7 | ||||
| -rw-r--r-- | src/resolve/resolved-dns-transaction.c | 65 | ||||
| -rw-r--r-- | src/resolve/resolved-dns-transaction.h | 10 |
3 files changed, 24 insertions, 58 deletions
diff --git a/src/resolve/resolved-dns-scope.c b/src/resolve/resolved-dns-scope.c index 0aab1e35d3..ce419f1a04 100644 --- a/src/resolve/resolved-dns-scope.c +++ b/src/resolve/resolved-dns-scope.c @@ -162,12 +162,7 @@ int dns_scope_emit(DnsScope *s, DnsTransaction *t, DnsPacket *p, DnsServer **ser if (p->size + UDP_PACKET_HEADER_SIZE > mtu) return -EMSGSIZE; - if (family == AF_INET) - fd = transaction_dns_ipv4_fd(t); - else if (family == AF_INET6) - fd = transaction_dns_ipv6_fd(t); - else - return -EAFNOSUPPORT; + fd = transaction_dns_fd(t); if (fd < 0) return fd; diff --git a/src/resolve/resolved-dns-transaction.c b/src/resolve/resolved-dns-transaction.c index 3d46c99df8..4644f8a9e1 100644 --- a/src/resolve/resolved-dns-transaction.c +++ b/src/resolve/resolved-dns-transaction.c @@ -39,10 +39,8 @@ DnsTransaction* dns_transaction_free(DnsTransaction *t) { dns_packet_unref(t->received); dns_answer_unref(t->cached); - sd_event_source_unref(t->dns_ipv4_event_source); - sd_event_source_unref(t->dns_ipv6_event_source); - safe_close(t->dns_ipv4_fd); - safe_close(t->dns_ipv6_fd); + sd_event_source_unref(t->dns_event_source); + safe_close(t->dns_fd); dns_server_unref(t->server); dns_stream_free(t->stream); @@ -94,7 +92,7 @@ int dns_transaction_new(DnsTransaction **ret, DnsScope *s, DnsQuestion *q) { if (!t) return -ENOMEM; - t->dns_ipv4_fd = t->dns_ipv6_fd = -1; + t->dns_fd = -1; t->question = dns_question_ref(q); @@ -655,7 +653,7 @@ static int on_dns_packet(sd_event_source *s, int fd, uint32_t revents, void *use return 0; } -int transaction_dns_ipv4_fd(DnsTransaction *t) { +int transaction_dns_fd(DnsTransaction *t) { const int one = 1; int r; @@ -663,59 +661,36 @@ int transaction_dns_ipv4_fd(DnsTransaction *t) { assert(t->scope); assert(t->scope->manager); - if (t->dns_ipv4_fd >= 0) - return t->dns_ipv4_fd; + if (t->dns_fd >= 0) + return t->dns_fd; - t->dns_ipv4_fd = socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); - if (t->dns_ipv4_fd < 0) + t->dns_fd = socket(t->scope->family, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); + if (t->dns_fd < 0) return -errno; - r = setsockopt(t->dns_ipv4_fd, IPPROTO_IP, IP_PKTINFO, &one, sizeof(one)); - if (r < 0) { - r = -errno; - goto fail; + switch (t->scope->family) { + case AF_INET: + r = setsockopt(t->dns_fd, IPPROTO_IP, IP_PKTINFO, &one, sizeof(one)); + break; + case AF_INET6: + r = setsockopt(t->dns_fd, IPPROTO_IPV6, IPV6_RECVPKTINFO, &one, sizeof(one)); + break; + default: + return -EAFNOSUPPORT; } - - r = sd_event_add_io(t->scope->manager->event, &t->dns_ipv4_event_source, t->dns_ipv4_fd, EPOLLIN, on_dns_packet, t); - if (r < 0) - goto fail; - - return t->dns_ipv4_fd; - -fail: - t->dns_ipv4_fd = safe_close(t->dns_ipv4_fd); - return r; -} - -int transaction_dns_ipv6_fd(DnsTransaction *t) { - const int one = 1; - int r; - - assert(t); - assert(t->scope); - assert(t->scope->manager); - - if (t->dns_ipv6_fd >= 0) - return t->dns_ipv6_fd; - - t->dns_ipv6_fd = socket(AF_INET6, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); - if (t->dns_ipv6_fd < 0) - return -errno; - - r = setsockopt(t->dns_ipv6_fd, IPPROTO_IPV6, IPV6_RECVPKTINFO, &one, sizeof(one)); if (r < 0) { r = -errno; goto fail; } - r = sd_event_add_io(t->scope->manager->event, &t->dns_ipv6_event_source, t->dns_ipv6_fd, EPOLLIN, on_dns_packet, t); + r = sd_event_add_io(t->scope->manager->event, &t->dns_event_source, t->dns_fd, EPOLLIN, on_dns_packet, t); if (r < 0) goto fail; - return t->dns_ipv6_fd; + return t->dns_fd; fail: - t->dns_ipv6_fd = safe_close(t->dns_ipv6_fd); + t->dns_fd = safe_close(t->dns_fd); return r; } diff --git a/src/resolve/resolved-dns-transaction.h b/src/resolve/resolved-dns-transaction.h index 87f342ca11..1c8f82352a 100644 --- a/src/resolve/resolved-dns-transaction.h +++ b/src/resolve/resolved-dns-transaction.h @@ -61,11 +61,8 @@ struct DnsTransaction { sd_event_source *timeout_event_source; unsigned n_attempts; - int dns_ipv4_fd; - int dns_ipv6_fd; - - sd_event_source *dns_ipv4_event_source; - sd_event_source *dns_ipv6_event_source; + int dns_fd; + sd_event_source *dns_event_source; /* the active server */ DnsServer *server; @@ -95,8 +92,7 @@ int dns_transaction_go(DnsTransaction *t); void dns_transaction_process_reply(DnsTransaction *t, DnsPacket *p); void dns_transaction_complete(DnsTransaction *t, DnsTransactionState state); -int transaction_dns_ipv4_fd(DnsTransaction *t); -int transaction_dns_ipv6_fd(DnsTransaction *t); +int transaction_dns_fd(DnsTransaction *t); const char* dns_transaction_state_to_string(DnsTransactionState p) _const_; DnsTransactionState dns_transaction_state_from_string(const char *s) _pure_; |