522 lines
16 KiB
C
522 lines
16 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "apr_arch_networkio.h"
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#include "apr_network_io.h"
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#include "apr_strings.h"
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#include "apr_support.h"
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#include "apr_portable.h"
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#include "apr_arch_inherit.h"
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#ifdef BEOS_R5
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#undef close
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#define close closesocket
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#endif /* BEOS_R5 */
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static char generic_inaddr_any[16] = {0}; /* big enough for IPv4 or IPv6 */
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static apr_status_t socket_cleanup(void *sock)
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{
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apr_socket_t *thesocket = sock;
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int sd = thesocket->socketdes;
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/* Set socket descriptor to -1 before close(), so that there is no
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* chance of returning an already closed FD from apr_os_sock_get().
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*/
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thesocket->socketdes = -1;
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if (close(sd) == 0) {
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return APR_SUCCESS;
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}
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else {
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/* Restore, close() was not successful. */
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thesocket->socketdes = sd;
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return errno;
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}
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}
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static void set_socket_vars(apr_socket_t *sock, int family, int type, int protocol)
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{
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sock->type = type;
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sock->protocol = protocol;
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apr_sockaddr_vars_set(sock->local_addr, family, 0);
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apr_sockaddr_vars_set(sock->remote_addr, family, 0);
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sock->options = 0;
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#if defined(BEOS) && !defined(BEOS_BONE)
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/* BeOS pre-BONE has TCP_NODELAY on by default and it can't be
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* switched off!
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*/
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sock->options |= APR_TCP_NODELAY;
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#endif
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}
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static void alloc_socket(apr_socket_t **new, apr_pool_t *p)
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{
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*new = (apr_socket_t *)apr_pcalloc(p, sizeof(apr_socket_t));
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(*new)->pool = p;
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(*new)->local_addr = (apr_sockaddr_t *)apr_pcalloc((*new)->pool,
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sizeof(apr_sockaddr_t));
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(*new)->local_addr->pool = p;
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(*new)->remote_addr = (apr_sockaddr_t *)apr_pcalloc((*new)->pool,
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sizeof(apr_sockaddr_t));
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(*new)->remote_addr->pool = p;
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(*new)->remote_addr_unknown = 1;
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#ifndef WAITIO_USES_POLL
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/* Create a pollset with room for one descriptor. */
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/* ### check return codes */
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(void) apr_pollset_create(&(*new)->pollset, 1, p, 0);
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#endif
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}
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apr_status_t apr_socket_protocol_get(apr_socket_t *sock, int *protocol)
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{
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*protocol = sock->protocol;
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return APR_SUCCESS;
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}
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apr_status_t apr_socket_create(apr_socket_t **new, int ofamily, int type,
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int protocol, apr_pool_t *cont)
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{
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int family = ofamily, flags = 0;
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#ifdef HAVE_SOCK_CLOEXEC
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flags |= SOCK_CLOEXEC;
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#endif
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if (family == APR_UNSPEC) {
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#if APR_HAVE_IPV6
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family = APR_INET6;
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#else
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family = APR_INET;
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#endif
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}
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alloc_socket(new, cont);
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#ifndef BEOS_R5
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(*new)->socketdes = socket(family, type|flags, protocol);
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#else
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/* For some reason BeOS R5 has an unconventional protocol numbering,
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* so we need to translate here. */
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switch (protocol) {
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case 0:
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(*new)->socketdes = socket(family, type|flags, 0);
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break;
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case APR_PROTO_TCP:
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(*new)->socketdes = socket(family, type|flags, IPPROTO_TCP);
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break;
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case APR_PROTO_UDP:
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(*new)->socketdes = socket(family, type|flags, IPPROTO_UDP);
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break;
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case APR_PROTO_SCTP:
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default:
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errno = EPROTONOSUPPORT;
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(*new)->socketdes = -1;
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break;
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}
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#endif /* BEOS_R5 */
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#if APR_HAVE_IPV6
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if ((*new)->socketdes < 0 && ofamily == APR_UNSPEC) {
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family = APR_INET;
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(*new)->socketdes = socket(family, type|flags, protocol);
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}
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#endif
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if ((*new)->socketdes < 0) {
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return errno;
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}
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set_socket_vars(*new, family, type, protocol);
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#ifndef HAVE_SOCK_CLOEXEC
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{
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int flags;
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apr_status_t rv;
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if ((flags = fcntl((*new)->socketdes, F_GETFD)) == -1) {
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rv = errno;
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close((*new)->socketdes);
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(*new)->socketdes = -1;
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return rv;
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}
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flags |= FD_CLOEXEC;
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if (fcntl((*new)->socketdes, F_SETFD, flags) == -1) {
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rv = errno;
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close((*new)->socketdes);
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(*new)->socketdes = -1;
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return rv;
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}
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}
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#endif
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(*new)->timeout = -1;
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(*new)->inherit = 0;
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apr_pool_cleanup_register((*new)->pool, (void *)(*new), socket_cleanup,
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socket_cleanup);
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return APR_SUCCESS;
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}
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apr_status_t apr_socket_shutdown(apr_socket_t *thesocket,
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apr_shutdown_how_e how)
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{
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return (shutdown(thesocket->socketdes, how) == -1) ? errno : APR_SUCCESS;
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}
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apr_status_t apr_socket_close(apr_socket_t *thesocket)
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{
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return apr_pool_cleanup_run(thesocket->pool, thesocket, socket_cleanup);
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}
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apr_status_t apr_socket_bind(apr_socket_t *sock, apr_sockaddr_t *sa)
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{
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if (bind(sock->socketdes,
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(struct sockaddr *)&sa->sa, sa->salen) == -1) {
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return errno;
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}
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else {
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sock->local_addr = sa;
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/* XXX IPv6 - this assumes sin_port and sin6_port at same offset */
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if (sock->local_addr->sa.sin.sin_port == 0) { /* no need for ntohs() when comparing w/ 0 */
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sock->local_port_unknown = 1; /* kernel got us an ephemeral port */
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}
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return APR_SUCCESS;
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}
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}
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apr_status_t apr_socket_listen(apr_socket_t *sock, apr_int32_t backlog)
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{
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if (listen(sock->socketdes, backlog) == -1)
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return errno;
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else
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return APR_SUCCESS;
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}
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apr_status_t apr_socket_accept(apr_socket_t **new, apr_socket_t *sock,
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apr_pool_t *connection_context)
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{
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int s;
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apr_sockaddr_t sa;
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sa.salen = sizeof(sa.sa);
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#ifdef HAVE_ACCEPT4
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{
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int flags = SOCK_CLOEXEC;
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#if defined(SOCK_NONBLOCK) && APR_O_NONBLOCK_INHERITED
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/* With FreeBSD accept4() (avail in 10+), O_NONBLOCK is not inherited
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* (unlike Linux). Mimic the accept() behavior here in a way that
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* may help other platforms.
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*/
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if (apr_is_option_set(sock, APR_SO_NONBLOCK) == 1) {
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flags |= SOCK_NONBLOCK;
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}
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#endif
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s = accept4(sock->socketdes, (struct sockaddr *)&sa.sa, &sa.salen, flags);
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}
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#else
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s = accept(sock->socketdes, (struct sockaddr *)&sa.sa, &sa.salen);
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#endif
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if (s < 0) {
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return errno;
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}
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#ifdef TPF
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if (s == 0) {
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/* 0 is an invalid socket for TPF */
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return APR_EINTR;
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}
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#endif
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alloc_socket(new, connection_context);
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/* Set up socket variables -- note that it may be possible for
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* *new to be an AF_INET socket when sock is AF_INET6 in some
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* dual-stack configurations, so ensure that the remote_/local_addr
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* structures are adjusted for the family of the accepted
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* socket: */
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set_socket_vars(*new, sa.sa.sin.sin_family, SOCK_STREAM, sock->protocol);
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#ifndef HAVE_POLL
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(*new)->connected = 1;
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#endif
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(*new)->timeout = -1;
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(*new)->remote_addr_unknown = 0;
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(*new)->socketdes = s;
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/* Copy in peer's address. */
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(*new)->remote_addr->sa = sa.sa;
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(*new)->remote_addr->salen = sa.salen;
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*(*new)->local_addr = *sock->local_addr;
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/* The above assignment just overwrote the pool entry. Setting the local_addr
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pool for the accepted socket back to what it should be. Otherwise all
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allocations for this socket will come from a server pool that is not
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freed until the process goes down.*/
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(*new)->local_addr->pool = connection_context;
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/* fix up any pointers which are no longer valid */
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if (sock->local_addr->sa.sin.sin_family == AF_INET) {
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(*new)->local_addr->ipaddr_ptr = &(*new)->local_addr->sa.sin.sin_addr;
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}
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#if APR_HAVE_IPV6
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else if (sock->local_addr->sa.sin.sin_family == AF_INET6) {
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(*new)->local_addr->ipaddr_ptr = &(*new)->local_addr->sa.sin6.sin6_addr;
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}
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#endif
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(*new)->remote_addr->port = ntohs((*new)->remote_addr->sa.sin.sin_port);
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if (sock->local_port_unknown) {
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/* not likely for a listening socket, but theoretically possible :) */
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(*new)->local_port_unknown = 1;
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}
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#if APR_TCP_NODELAY_INHERITED
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if (apr_is_option_set(sock, APR_TCP_NODELAY) == 1) {
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apr_set_option(*new, APR_TCP_NODELAY, 1);
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}
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#endif /* TCP_NODELAY_INHERITED */
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#if APR_O_NONBLOCK_INHERITED
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if (apr_is_option_set(sock, APR_SO_NONBLOCK) == 1) {
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apr_set_option(*new, APR_SO_NONBLOCK, 1);
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}
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#endif /* APR_O_NONBLOCK_INHERITED */
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if (sock->local_interface_unknown ||
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!memcmp(sock->local_addr->ipaddr_ptr,
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generic_inaddr_any,
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sock->local_addr->ipaddr_len)) {
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/* If the interface address inside the listening socket's local_addr wasn't
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* up-to-date, we don't know local interface of the connected socket either.
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*
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* If the listening socket was not bound to a specific interface, we
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* don't know the local_addr of the connected socket.
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*/
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(*new)->local_interface_unknown = 1;
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}
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#ifndef HAVE_ACCEPT4
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{
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int flags;
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apr_status_t rv;
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if ((flags = fcntl((*new)->socketdes, F_GETFD)) == -1) {
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rv = errno;
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close((*new)->socketdes);
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(*new)->socketdes = -1;
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return rv;
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}
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flags |= FD_CLOEXEC;
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if (fcntl((*new)->socketdes, F_SETFD, flags) == -1) {
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rv = errno;
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close((*new)->socketdes);
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(*new)->socketdes = -1;
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return rv;
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}
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}
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#endif
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(*new)->inherit = 0;
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apr_pool_cleanup_register((*new)->pool, (void *)(*new), socket_cleanup,
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socket_cleanup);
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return APR_SUCCESS;
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}
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apr_status_t apr_socket_connect(apr_socket_t *sock, apr_sockaddr_t *sa)
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{
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int rc;
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do {
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rc = connect(sock->socketdes,
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(const struct sockaddr *)&sa->sa.sin,
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sa->salen);
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} while (rc == -1 && errno == EINTR);
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/* we can see EINPROGRESS the first time connect is called on a non-blocking
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* socket; if called again, we can see EALREADY
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*/
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if ((rc == -1) && (errno == EINPROGRESS || errno == EALREADY)
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&& (sock->timeout > 0)) {
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rc = apr_wait_for_io_or_timeout(NULL, sock, 0);
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if (rc != APR_SUCCESS) {
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return rc;
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}
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#ifdef SO_ERROR
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{
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int error;
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apr_socklen_t len = sizeof(error);
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if ((rc = getsockopt(sock->socketdes, SOL_SOCKET, SO_ERROR,
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(char *)&error, &len)) < 0) {
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return errno;
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}
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if (error) {
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return error;
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}
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}
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#endif /* SO_ERROR */
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}
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if (memcmp(sa->ipaddr_ptr, generic_inaddr_any, sa->ipaddr_len)) {
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/* A real remote address was passed in. If the unspecified
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* address was used, the actual remote addr will have to be
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* determined using getpeername() if required. */
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sock->remote_addr_unknown = 0;
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/* Copy the address structure details in. */
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sock->remote_addr->sa = sa->sa;
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sock->remote_addr->salen = sa->salen;
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/* Adjust ipaddr_ptr et al. */
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apr_sockaddr_vars_set(sock->remote_addr, sa->family, sa->port);
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}
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if (sock->local_addr->port == 0) {
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/* connect() got us an ephemeral port */
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sock->local_port_unknown = 1;
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}
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if (!memcmp(sock->local_addr->ipaddr_ptr,
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generic_inaddr_any,
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sock->local_addr->ipaddr_len)) {
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/* not bound to specific local interface; connect() had to assign
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* one for the socket
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*/
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sock->local_interface_unknown = 1;
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}
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if (rc == -1 && errno != EISCONN) {
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return errno;
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}
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#ifndef HAVE_POLL
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sock->connected=1;
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#endif
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return APR_SUCCESS;
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}
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apr_status_t apr_socket_type_get(apr_socket_t *sock, int *type)
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{
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*type = sock->type;
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return APR_SUCCESS;
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}
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apr_status_t apr_socket_data_get(void **data, const char *key, apr_socket_t *sock)
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{
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sock_userdata_t *cur = sock->userdata;
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*data = NULL;
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while (cur) {
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if (!strcmp(cur->key, key)) {
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*data = cur->data;
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break;
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}
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cur = cur->next;
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}
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return APR_SUCCESS;
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}
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apr_status_t apr_socket_data_set(apr_socket_t *sock, void *data, const char *key,
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apr_status_t (*cleanup) (void *))
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{
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sock_userdata_t *new = apr_palloc(sock->pool, sizeof(sock_userdata_t));
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new->key = apr_pstrdup(sock->pool, key);
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new->data = data;
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new->next = sock->userdata;
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sock->userdata = new;
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if (cleanup) {
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apr_pool_cleanup_register(sock->pool, data, cleanup, cleanup);
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}
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return APR_SUCCESS;
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}
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apr_status_t apr_os_sock_get(apr_os_sock_t *thesock, apr_socket_t *sock)
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{
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*thesock = sock->socketdes;
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return APR_SUCCESS;
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}
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apr_status_t apr_os_sock_make(apr_socket_t **apr_sock,
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apr_os_sock_info_t *os_sock_info,
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apr_pool_t *cont)
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{
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alloc_socket(apr_sock, cont);
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set_socket_vars(*apr_sock, os_sock_info->family, os_sock_info->type, os_sock_info->protocol);
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(*apr_sock)->timeout = -1;
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(*apr_sock)->socketdes = *os_sock_info->os_sock;
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if (os_sock_info->local) {
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memcpy(&(*apr_sock)->local_addr->sa.sin,
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os_sock_info->local,
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(*apr_sock)->local_addr->salen);
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/* XXX IPv6 - this assumes sin_port and sin6_port at same offset */
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(*apr_sock)->local_addr->port = ntohs((*apr_sock)->local_addr->sa.sin.sin_port);
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}
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else {
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(*apr_sock)->local_port_unknown = (*apr_sock)->local_interface_unknown = 1;
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}
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if (os_sock_info->remote) {
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#ifndef HAVE_POLL
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(*apr_sock)->connected = 1;
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#endif
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memcpy(&(*apr_sock)->remote_addr->sa.sin,
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os_sock_info->remote,
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(*apr_sock)->remote_addr->salen);
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/* XXX IPv6 - this assumes sin_port and sin6_port at same offset */
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(*apr_sock)->remote_addr->port = ntohs((*apr_sock)->remote_addr->sa.sin.sin_port);
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}
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else {
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(*apr_sock)->remote_addr_unknown = 1;
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}
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(*apr_sock)->inherit = 0;
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apr_pool_cleanup_register((*apr_sock)->pool, (void *)(*apr_sock),
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socket_cleanup, socket_cleanup);
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return APR_SUCCESS;
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}
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apr_status_t apr_os_sock_put(apr_socket_t **sock, apr_os_sock_t *thesock,
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apr_pool_t *cont)
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{
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/* XXX Bogus assumption that *sock points at anything legit */
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if ((*sock) == NULL) {
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alloc_socket(sock, cont);
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/* XXX IPv6 figure out the family here! */
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/* XXX figure out the actual socket type here */
|
|
/* *or* just decide that apr_os_sock_put() has to be told the family and type */
|
|
set_socket_vars(*sock, APR_INET, SOCK_STREAM, 0);
|
|
(*sock)->timeout = -1;
|
|
}
|
|
(*sock)->local_port_unknown = (*sock)->local_interface_unknown = 1;
|
|
(*sock)->remote_addr_unknown = 1;
|
|
(*sock)->socketdes = *thesock;
|
|
return APR_SUCCESS;
|
|
}
|
|
|
|
APR_POOL_IMPLEMENT_ACCESSOR(socket)
|
|
|
|
APR_IMPLEMENT_INHERIT_SET(socket, inherit, pool, socket_cleanup)
|
|
|
|
APR_IMPLEMENT_INHERIT_UNSET(socket, inherit, pool, socket_cleanup)
|