2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan Metzmacher 2009
6 ** NOTE! The following LGPL license applies to the tevent
7 ** library. This does NOT imply that all of Samba is released
10 This library is free software; you can redistribute it and/or
11 modify it under the terms of the GNU Lesser General Public
12 License as published by the Free Software Foundation; either
13 version 3 of the License, or (at your option) any later version.
15 This library is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public
21 License along with this library; if not, see <http://www.gnu.org/licenses/>.
25 #include "system/filesys.h"
26 #include "system/network.h"
28 #include "tsocket_internal.h"
30 static int tsocket_bsd_error_from_errno(int ret,
48 if (sys_errno == EINTR) {
53 if (sys_errno == EINPROGRESS) {
58 if (sys_errno == EAGAIN) {
64 if (sys_errno == EWOULDBLOCK) {
73 static int tsocket_bsd_common_prepare_fd(int fd, bool high_fd)
86 /* first make a fd >= 3 */
96 for (i=0; i<num_fds; i++) {
105 /* fd should be nonblocking. */
108 #define FLAG_TO_SET O_NONBLOCK
111 #define FLAG_TO_SET O_NDELAY
113 #define FLAG_TO_SET FNDELAY
117 if ((flags = fcntl(fd, F_GETFL)) == -1) {
121 flags |= FLAG_TO_SET;
122 if (fcntl(fd, F_SETFL, flags) == -1) {
128 /* fd should be closed on exec() */
130 result = flags = fcntl(fd, F_GETFD, 0);
133 result = fcntl(fd, F_SETFD, flags);
150 static ssize_t tsocket_bsd_pending(int fd)
155 ret = ioctl(fd, FIONREAD, &value);
163 socklen_t len = sizeof(error);
165 * if no data is available check if the socket
166 * is in error state. For dgram sockets
167 * it's the way to return ICMP error messages
168 * of connected sockets to the caller.
170 ret = getsockopt(fd, SOL_SOCKET, SO_ERROR,
183 /* this should not be reached */
188 static const struct tsocket_address_ops tsocket_address_bsd_ops;
190 struct tsocket_address_bsd {
193 struct sockaddr_in in;
195 struct sockaddr_in6 in6;
197 struct sockaddr_un un;
198 struct sockaddr_storage ss;
202 static int _tsocket_address_bsd_from_sockaddr(TALLOC_CTX *mem_ctx,
205 struct tsocket_address **_addr,
206 const char *location)
208 struct tsocket_address *addr;
209 struct tsocket_address_bsd *bsda;
211 switch (sa->sa_family) {
213 if (sa_len < sizeof(struct sockaddr_un)) {
219 if (sa_len < sizeof(struct sockaddr_in)) {
226 if (sa_len < sizeof(struct sockaddr_in6)) {
233 errno = EAFNOSUPPORT;
237 if (sa_len > sizeof(struct sockaddr_storage)) {
242 addr = tsocket_address_create(mem_ctx,
243 &tsocket_address_bsd_ops,
245 struct tsocket_address_bsd,
254 memcpy(&bsda->u.ss, sa, sa_len);
260 int _tsocket_address_inet_from_strings(TALLOC_CTX *mem_ctx,
264 struct tsocket_address **_addr,
265 const char *location)
267 struct addrinfo hints;
268 struct addrinfo *result = NULL;
274 * we use SOCKET_STREAM here to get just one result
275 * back from getaddrinfo().
277 hints.ai_socktype = SOCK_STREAM;
278 hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
280 if (strcasecmp(fam, "ip") == 0) {
281 hints.ai_family = AF_UNSPEC;
289 } else if (strcasecmp(fam, "ipv4") == 0) {
290 hints.ai_family = AF_INET;
295 } else if (strcasecmp(fam, "ipv6") == 0) {
296 hints.ai_family = AF_INET6;
302 errno = EAFNOSUPPORT;
306 snprintf(port_str, sizeof(port_str) - 1, "%u", port);
308 ret = getaddrinfo(addr, port_str, &hints, &result);
319 if (result->ai_socktype != SOCK_STREAM) {
325 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
333 freeaddrinfo(result);
338 char *tsocket_address_inet_addr_string(const struct tsocket_address *addr,
341 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
342 struct tsocket_address_bsd);
343 char addr_str[INET6_ADDRSTRLEN+1];
351 switch (bsda->u.sa.sa_family) {
353 str = inet_ntop(bsda->u.in.sin_family,
354 &bsda->u.in.sin_addr,
355 addr_str, sizeof(addr_str));
359 str = inet_ntop(bsda->u.in6.sin6_family,
360 &bsda->u.in6.sin6_addr,
361 addr_str, sizeof(addr_str));
373 return talloc_strdup(mem_ctx, str);
376 uint16_t tsocket_address_inet_port(const struct tsocket_address *addr)
378 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
379 struct tsocket_address_bsd);
387 switch (bsda->u.sa.sa_family) {
389 port = ntohs(bsda->u.in.sin_port);
393 port = ntohs(bsda->u.in6.sin6_port);
404 int tsocket_address_inet_set_port(struct tsocket_address *addr,
407 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
408 struct tsocket_address_bsd);
415 switch (bsda->u.sa.sa_family) {
417 bsda->u.in.sin_port = htons(port);
421 bsda->u.in6.sin6_port = htons(port);
432 int _tsocket_address_unix_from_path(TALLOC_CTX *mem_ctx,
434 struct tsocket_address **_addr,
435 const char *location)
437 struct sockaddr_un un;
446 un.sun_family = AF_UNIX;
447 strncpy(un.sun_path, path, sizeof(un.sun_path));
449 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
450 (struct sockaddr *)p,
458 char *tsocket_address_unix_path(const struct tsocket_address *addr,
461 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
462 struct tsocket_address_bsd);
470 switch (bsda->u.sa.sa_family) {
472 str = bsda->u.un.sun_path;
479 return talloc_strdup(mem_ctx, str);
482 static char *tsocket_address_bsd_string(const struct tsocket_address *addr,
485 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
486 struct tsocket_address_bsd);
489 const char *prefix = NULL;
492 switch (bsda->u.sa.sa_family) {
494 return talloc_asprintf(mem_ctx, "unix:%s",
495 bsda->u.un.sun_path);
509 addr_str = tsocket_address_inet_addr_string(addr, mem_ctx);
514 port = tsocket_address_inet_port(addr);
516 str = talloc_asprintf(mem_ctx, "%s:%s:%u",
517 prefix, addr_str, port);
518 talloc_free(addr_str);
523 static struct tsocket_address *tsocket_address_bsd_copy(const struct tsocket_address *addr,
525 const char *location)
527 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
528 struct tsocket_address_bsd);
529 struct tsocket_address *copy;
532 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
544 static const struct tsocket_address_ops tsocket_address_bsd_ops = {
546 .string = tsocket_address_bsd_string,
547 .copy = tsocket_address_bsd_copy,
554 struct tevent_fd *fde;
556 void *readable_private;
557 void (*readable_handler)(void *private_data);
558 void *writeable_private;
559 void (*writeable_handler)(void *private_data);
562 static void tdgram_bsd_fde_handler(struct tevent_context *ev,
563 struct tevent_fd *fde,
567 struct tdgram_bsd *bsds = talloc_get_type_abort(private_data,
570 if (flags & TEVENT_FD_WRITE) {
571 bsds->writeable_handler(bsds->writeable_private);
574 if (flags & TEVENT_FD_READ) {
575 if (!bsds->readable_handler) {
576 TEVENT_FD_NOT_READABLE(bsds->fde);
579 bsds->readable_handler(bsds->readable_private);
584 static int tdgram_bsd_set_readable_handler(struct tdgram_bsd *bsds,
585 struct tevent_context *ev,
586 void (*handler)(void *private_data),
594 if (!bsds->readable_handler) {
597 bsds->readable_handler = NULL;
598 bsds->readable_private = NULL;
603 /* read and write must use the same tevent_context */
604 if (bsds->event_ptr != ev) {
605 if (bsds->readable_handler || bsds->writeable_handler) {
609 bsds->event_ptr = NULL;
610 TALLOC_FREE(bsds->fde);
613 if (bsds->fde == NULL) {
614 bsds->fde = tevent_add_fd(ev, bsds,
615 bsds->fd, TEVENT_FD_READ,
616 tdgram_bsd_fde_handler,
622 /* cache the event context we're running on */
623 bsds->event_ptr = ev;
624 } else if (!bsds->readable_handler) {
625 TEVENT_FD_READABLE(bsds->fde);
628 bsds->readable_handler = handler;
629 bsds->readable_private = private_data;
634 static int tdgram_bsd_set_writeable_handler(struct tdgram_bsd *bsds,
635 struct tevent_context *ev,
636 void (*handler)(void *private_data),
644 if (!bsds->writeable_handler) {
647 bsds->writeable_handler = NULL;
648 bsds->writeable_private = NULL;
649 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
654 /* read and write must use the same tevent_context */
655 if (bsds->event_ptr != ev) {
656 if (bsds->readable_handler || bsds->writeable_handler) {
660 bsds->event_ptr = NULL;
661 TALLOC_FREE(bsds->fde);
664 if (bsds->fde == NULL) {
665 bsds->fde = tevent_add_fd(ev, bsds,
666 bsds->fd, TEVENT_FD_WRITE,
667 tdgram_bsd_fde_handler,
673 /* cache the event context we're running on */
674 bsds->event_ptr = ev;
675 } else if (!bsds->writeable_handler) {
676 TEVENT_FD_WRITEABLE(bsds->fde);
679 bsds->writeable_handler = handler;
680 bsds->writeable_private = private_data;
685 struct tdgram_bsd_recvfrom_state {
686 struct tdgram_context *dgram;
690 struct tsocket_address *src;
693 static int tdgram_bsd_recvfrom_destructor(struct tdgram_bsd_recvfrom_state *state)
695 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
698 tdgram_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
703 static void tdgram_bsd_recvfrom_handler(void *private_data);
705 static struct tevent_req *tdgram_bsd_recvfrom_send(TALLOC_CTX *mem_ctx,
706 struct tevent_context *ev,
707 struct tdgram_context *dgram)
709 struct tevent_req *req;
710 struct tdgram_bsd_recvfrom_state *state;
711 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
714 req = tevent_req_create(mem_ctx, &state,
715 struct tdgram_bsd_recvfrom_state);
720 state->dgram = dgram;
725 talloc_set_destructor(state, tdgram_bsd_recvfrom_destructor);
727 if (bsds->fd == -1) {
728 tevent_req_error(req, ENOTCONN);
733 * this is a fast path, not waiting for the
734 * socket to become explicit readable gains
735 * about 10%-20% performance in benchmark tests.
737 tdgram_bsd_recvfrom_handler(req);
738 if (!tevent_req_is_in_progress(req)) {
742 ret = tdgram_bsd_set_readable_handler(bsds, ev,
743 tdgram_bsd_recvfrom_handler,
746 tevent_req_error(req, errno);
753 tevent_req_post(req, ev);
757 static void tdgram_bsd_recvfrom_handler(void *private_data)
759 struct tevent_req *req = talloc_get_type_abort(private_data,
761 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
762 struct tdgram_bsd_recvfrom_state);
763 struct tdgram_context *dgram = state->dgram;
764 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
765 struct tsocket_address_bsd *bsda;
767 struct sockaddr *sa = NULL;
768 socklen_t sa_len = 0;
772 ret = tsocket_bsd_pending(bsds->fd);
777 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
782 if (tevent_req_error(req, err)) {
786 state->buf = talloc_array(state, uint8_t, ret);
787 if (tevent_req_nomem(state->buf, req)) {
792 state->src = tsocket_address_create(state,
793 &tsocket_address_bsd_ops,
795 struct tsocket_address_bsd,
796 __location__ "bsd_recvfrom");
797 if (tevent_req_nomem(state->src, req)) {
804 sa_len = sizeof(bsda->u.ss);
806 * for unix sockets we can't use the size of sockaddr_storage
807 * we would get EINVAL
809 if (bsda->u.sa.sa_family == AF_UNIX) {
810 sa_len = sizeof(bsda->u.un);
813 ret = recvfrom(bsds->fd, state->buf, state->len, 0, sa, &sa_len);
814 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
819 if (tevent_req_error(req, err)) {
823 if (ret != state->len) {
824 tevent_req_error(req, EIO);
828 tevent_req_done(req);
831 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
835 struct tsocket_address **src)
837 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
838 struct tdgram_bsd_recvfrom_state);
841 ret = tsocket_simple_int_recv(req, perrno);
843 *buf = talloc_move(mem_ctx, &state->buf);
846 *src = talloc_move(mem_ctx, &state->src);
850 tevent_req_received(req);
854 struct tdgram_bsd_sendto_state {
855 struct tdgram_context *dgram;
859 const struct tsocket_address *dst;
864 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
866 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
869 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
874 static void tdgram_bsd_sendto_handler(void *private_data);
876 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
877 struct tevent_context *ev,
878 struct tdgram_context *dgram,
881 const struct tsocket_address *dst)
883 struct tevent_req *req;
884 struct tdgram_bsd_sendto_state *state;
885 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
888 req = tevent_req_create(mem_ctx, &state,
889 struct tdgram_bsd_sendto_state);
894 state->dgram = dgram;
900 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
902 if (bsds->fd == -1) {
903 tevent_req_error(req, ENOTCONN);
908 * this is a fast path, not waiting for the
909 * socket to become explicit writeable gains
910 * about 10%-20% performance in benchmark tests.
912 tdgram_bsd_sendto_handler(req);
913 if (!tevent_req_is_in_progress(req)) {
917 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
918 tdgram_bsd_sendto_handler,
921 tevent_req_error(req, errno);
928 tevent_req_post(req, ev);
932 static void tdgram_bsd_sendto_handler(void *private_data)
934 struct tevent_req *req = talloc_get_type_abort(private_data,
936 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
937 struct tdgram_bsd_sendto_state);
938 struct tdgram_context *dgram = state->dgram;
939 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
940 struct sockaddr *sa = NULL;
941 socklen_t sa_len = 0;
947 struct tsocket_address_bsd *bsda =
948 talloc_get_type(state->dst->private_data,
949 struct tsocket_address_bsd);
952 sa_len = sizeof(bsda->u.ss);
954 * for unix sockets we can't use the size of sockaddr_storage
955 * we would get EINVAL
957 if (bsda->u.sa.sa_family == AF_UNIX) {
958 sa_len = sizeof(bsda->u.un);
962 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_len);
963 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
968 if (tevent_req_error(req, err)) {
974 tevent_req_done(req);
977 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
979 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
980 struct tdgram_bsd_sendto_state);
983 ret = tsocket_simple_int_recv(req, perrno);
988 tevent_req_received(req);
992 struct tdgram_bsd_disconnect_state {
996 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
997 struct tevent_context *ev,
998 struct tdgram_context *dgram)
1000 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1001 struct tevent_req *req;
1002 struct tdgram_bsd_disconnect_state *state;
1007 req = tevent_req_create(mem_ctx, &state,
1008 struct tdgram_bsd_disconnect_state);
1013 if (bsds->fd == -1) {
1014 tevent_req_error(req, ENOTCONN);
1018 ret = close(bsds->fd);
1020 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1021 if (tevent_req_error(req, err)) {
1025 tevent_req_done(req);
1027 tevent_req_post(req, ev);
1031 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1036 ret = tsocket_simple_int_recv(req, perrno);
1038 tevent_req_received(req);
1042 static const struct tdgram_context_ops tdgram_bsd_ops = {
1045 .recvfrom_send = tdgram_bsd_recvfrom_send,
1046 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1048 .sendto_send = tdgram_bsd_sendto_send,
1049 .sendto_recv = tdgram_bsd_sendto_recv,
1051 .disconnect_send = tdgram_bsd_disconnect_send,
1052 .disconnect_recv = tdgram_bsd_disconnect_recv,
1055 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1057 TALLOC_FREE(bsds->fde);
1058 if (bsds->fd != -1) {
1065 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1066 const struct tsocket_address *remote,
1068 TALLOC_CTX *mem_ctx,
1069 struct tdgram_context **_dgram,
1070 const char *location)
1072 struct tsocket_address_bsd *lbsda =
1073 talloc_get_type_abort(local->private_data,
1074 struct tsocket_address_bsd);
1075 struct tsocket_address_bsd *rbsda = NULL;
1076 struct tdgram_context *dgram;
1077 struct tdgram_bsd *bsds;
1080 bool do_bind = false;
1081 bool do_reuseaddr = false;
1082 socklen_t sa_len = sizeof(lbsda->u.ss);
1085 rbsda = talloc_get_type_abort(remote->private_data,
1086 struct tsocket_address_bsd);
1089 switch (lbsda->u.sa.sa_family) {
1095 if (lbsda->u.un.sun_path[0] != 0) {
1096 do_reuseaddr = true;
1100 * for unix sockets we can't use the size of sockaddr_storage
1101 * we would get EINVAL
1103 sa_len = sizeof(lbsda->u.un);
1106 if (lbsda->u.in.sin_port != 0) {
1107 do_reuseaddr = true;
1110 if (lbsda->u.in.sin_addr.s_addr == INADDR_ANY) {
1116 if (lbsda->u.in6.sin6_port != 0) {
1117 do_reuseaddr = true;
1120 if (memcmp(&in6addr_any,
1121 &lbsda->u.in6.sin6_addr,
1122 sizeof(in6addr_any)) != 0) {
1132 fd = socket(lbsda->u.sa.sa_family, SOCK_DGRAM, 0);
1137 fd = tsocket_bsd_common_prepare_fd(fd, true);
1142 dgram = tdgram_context_create(mem_ctx,
1148 int saved_errno = errno;
1150 errno = saved_errno;
1155 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1160 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1161 (const void *)&val, sizeof(val));
1163 int saved_errno = errno;
1165 errno = saved_errno;
1173 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1174 (const void *)&val, sizeof(val));
1176 int saved_errno = errno;
1178 errno = saved_errno;
1184 ret = bind(fd, &lbsda->u.sa, sa_len);
1186 int saved_errno = errno;
1188 errno = saved_errno;
1194 ret = connect(fd, &rbsda->u.sa, sa_len);
1196 int saved_errno = errno;
1198 errno = saved_errno;
1207 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
1208 const struct tsocket_address *remote,
1209 TALLOC_CTX *mem_ctx,
1210 struct tdgram_context **dgram,
1211 const char *location)
1213 struct tsocket_address_bsd *lbsda =
1214 talloc_get_type_abort(local->private_data,
1215 struct tsocket_address_bsd);
1218 switch (lbsda->u.sa.sa_family) {
1230 ret = tdgram_bsd_dgram_socket(local, remote, false,
1231 mem_ctx, dgram, location);
1236 int _tdgram_unix_socket(const struct tsocket_address *local,
1237 const struct tsocket_address *remote,
1238 TALLOC_CTX *mem_ctx,
1239 struct tdgram_context **dgram,
1240 const char *location)
1242 struct tsocket_address_bsd *lbsda =
1243 talloc_get_type_abort(local->private_data,
1244 struct tsocket_address_bsd);
1247 switch (lbsda->u.sa.sa_family) {
1255 ret = tdgram_bsd_dgram_socket(local, remote, false,
1256 mem_ctx, dgram, location);
1261 struct tstream_bsd {
1265 struct tevent_fd *fde;
1267 void *readable_private;
1268 void (*readable_handler)(void *private_data);
1269 void *writeable_private;
1270 void (*writeable_handler)(void *private_data);
1273 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1274 struct tevent_fd *fde,
1278 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1279 struct tstream_bsd);
1281 if (flags & TEVENT_FD_WRITE) {
1282 bsds->writeable_handler(bsds->writeable_private);
1285 if (flags & TEVENT_FD_READ) {
1286 if (!bsds->readable_handler) {
1287 TEVENT_FD_NOT_READABLE(bsds->fde);
1290 bsds->readable_handler(bsds->readable_private);
1295 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1296 struct tevent_context *ev,
1297 void (*handler)(void *private_data),
1305 if (!bsds->readable_handler) {
1308 bsds->readable_handler = NULL;
1309 bsds->readable_private = NULL;
1314 /* read and write must use the same tevent_context */
1315 if (bsds->event_ptr != ev) {
1316 if (bsds->readable_handler || bsds->writeable_handler) {
1320 bsds->event_ptr = NULL;
1321 TALLOC_FREE(bsds->fde);
1324 if (bsds->fde == NULL) {
1325 bsds->fde = tevent_add_fd(ev, bsds,
1326 bsds->fd, TEVENT_FD_READ,
1327 tstream_bsd_fde_handler,
1333 /* cache the event context we're running on */
1334 bsds->event_ptr = ev;
1335 } else if (!bsds->readable_handler) {
1336 TEVENT_FD_READABLE(bsds->fde);
1339 bsds->readable_handler = handler;
1340 bsds->readable_private = private_data;
1345 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1346 struct tevent_context *ev,
1347 void (*handler)(void *private_data),
1355 if (!bsds->writeable_handler) {
1358 bsds->writeable_handler = NULL;
1359 bsds->writeable_private = NULL;
1360 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
1365 /* read and write must use the same tevent_context */
1366 if (bsds->event_ptr != ev) {
1367 if (bsds->readable_handler || bsds->writeable_handler) {
1371 bsds->event_ptr = NULL;
1372 TALLOC_FREE(bsds->fde);
1375 if (bsds->fde == NULL) {
1376 bsds->fde = tevent_add_fd(ev, bsds,
1377 bsds->fd, TEVENT_FD_WRITE,
1378 tstream_bsd_fde_handler,
1384 /* cache the event context we're running on */
1385 bsds->event_ptr = ev;
1386 } else if (!bsds->writeable_handler) {
1387 TEVENT_FD_WRITEABLE(bsds->fde);
1390 bsds->writeable_handler = handler;
1391 bsds->writeable_private = private_data;
1396 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1398 struct tstream_bsd *bsds = tstream_context_data(stream,
1399 struct tstream_bsd);
1402 if (bsds->fd == -1) {
1407 ret = tsocket_bsd_pending(bsds->fd);
1412 struct tstream_bsd_readv_state {
1413 struct tstream_context *stream;
1415 struct iovec *vector;
1421 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1423 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1424 struct tstream_bsd);
1426 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1431 static void tstream_bsd_readv_handler(void *private_data);
1433 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1434 struct tevent_context *ev,
1435 struct tstream_context *stream,
1436 struct iovec *vector,
1439 struct tevent_req *req;
1440 struct tstream_bsd_readv_state *state;
1441 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1444 req = tevent_req_create(mem_ctx, &state,
1445 struct tstream_bsd_readv_state);
1450 state->stream = stream;
1451 /* we make a copy of the vector so that we can modify it */
1452 state->vector = talloc_array(state, struct iovec, count);
1453 if (tevent_req_nomem(state->vector, req)) {
1456 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1457 state->count = count;
1460 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1462 if (bsds->fd == -1) {
1463 tevent_req_error(req, ENOTCONN);
1468 * this is a fast path, not waiting for the
1469 * socket to become explicit readable gains
1470 * about 10%-20% performance in benchmark tests.
1472 tstream_bsd_readv_handler(req);
1473 if (!tevent_req_is_in_progress(req)) {
1477 ret = tstream_bsd_set_readable_handler(bsds, ev,
1478 tstream_bsd_readv_handler,
1481 tevent_req_error(req, errno);
1488 tevent_req_post(req, ev);
1492 static void tstream_bsd_readv_handler(void *private_data)
1494 struct tevent_req *req = talloc_get_type_abort(private_data,
1496 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1497 struct tstream_bsd_readv_state);
1498 struct tstream_context *stream = state->stream;
1499 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1504 ret = readv(bsds->fd, state->vector, state->count);
1506 /* propagate end of file */
1507 tevent_req_error(req, EPIPE);
1510 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1515 if (tevent_req_error(req, err)) {
1522 if (ret < state->vector[0].iov_len) {
1524 base = (uint8_t *)state->vector[0].iov_base;
1526 state->vector[0].iov_base = base;
1527 state->vector[0].iov_len -= ret;
1530 ret -= state->vector[0].iov_len;
1535 if (state->count > 0) {
1536 /* we have more to read */
1540 tevent_req_done(req);
1543 static int tstream_bsd_readv_recv(struct tevent_req *req,
1546 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1547 struct tstream_bsd_readv_state);
1550 ret = tsocket_simple_int_recv(req, perrno);
1555 tevent_req_received(req);
1559 struct tstream_bsd_writev_state {
1560 struct tstream_context *stream;
1562 struct iovec *vector;
1568 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1570 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1571 struct tstream_bsd);
1573 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1578 static void tstream_bsd_writev_handler(void *private_data);
1580 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1581 struct tevent_context *ev,
1582 struct tstream_context *stream,
1583 const struct iovec *vector,
1586 struct tevent_req *req;
1587 struct tstream_bsd_writev_state *state;
1588 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1591 req = tevent_req_create(mem_ctx, &state,
1592 struct tstream_bsd_writev_state);
1597 state->stream = stream;
1598 /* we make a copy of the vector so that we can modify it */
1599 state->vector = talloc_array(state, struct iovec, count);
1600 if (tevent_req_nomem(state->vector, req)) {
1603 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1604 state->count = count;
1607 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1609 if (bsds->fd == -1) {
1610 tevent_req_error(req, ENOTCONN);
1615 * this is a fast path, not waiting for the
1616 * socket to become explicit writeable gains
1617 * about 10%-20% performance in benchmark tests.
1619 tstream_bsd_writev_handler(req);
1620 if (!tevent_req_is_in_progress(req)) {
1624 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1625 tstream_bsd_writev_handler,
1628 tevent_req_error(req, errno);
1635 tevent_req_post(req, ev);
1639 static void tstream_bsd_writev_handler(void *private_data)
1641 struct tevent_req *req = talloc_get_type_abort(private_data,
1643 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1644 struct tstream_bsd_writev_state);
1645 struct tstream_context *stream = state->stream;
1646 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1651 ret = writev(bsds->fd, state->vector, state->count);
1653 /* propagate end of file */
1654 tevent_req_error(req, EPIPE);
1657 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1662 if (tevent_req_error(req, err)) {
1669 if (ret < state->vector[0].iov_len) {
1671 base = (uint8_t *)state->vector[0].iov_base;
1673 state->vector[0].iov_base = base;
1674 state->vector[0].iov_len -= ret;
1677 ret -= state->vector[0].iov_len;
1682 if (state->count > 0) {
1683 /* we have more to read */
1687 tevent_req_done(req);
1690 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1692 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1693 struct tstream_bsd_writev_state);
1696 ret = tsocket_simple_int_recv(req, perrno);
1701 tevent_req_received(req);
1705 struct tstream_bsd_disconnect_state {
1709 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1710 struct tevent_context *ev,
1711 struct tstream_context *stream)
1713 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1714 struct tevent_req *req;
1715 struct tstream_bsd_disconnect_state *state;
1720 req = tevent_req_create(mem_ctx, &state,
1721 struct tstream_bsd_disconnect_state);
1726 if (bsds->fd == -1) {
1727 tevent_req_error(req, ENOTCONN);
1731 ret = close(bsds->fd);
1733 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1734 if (tevent_req_error(req, err)) {
1738 tevent_req_done(req);
1740 tevent_req_post(req, ev);
1744 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1749 ret = tsocket_simple_int_recv(req, perrno);
1751 tevent_req_received(req);
1755 static const struct tstream_context_ops tstream_bsd_ops = {
1758 .pending_bytes = tstream_bsd_pending_bytes,
1760 .readv_send = tstream_bsd_readv_send,
1761 .readv_recv = tstream_bsd_readv_recv,
1763 .writev_send = tstream_bsd_writev_send,
1764 .writev_recv = tstream_bsd_writev_recv,
1766 .disconnect_send = tstream_bsd_disconnect_send,
1767 .disconnect_recv = tstream_bsd_disconnect_recv,
1770 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1772 TALLOC_FREE(bsds->fde);
1773 if (bsds->fd != -1) {
1780 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1782 struct tstream_context **_stream,
1783 const char *location)
1785 struct tstream_context *stream;
1786 struct tstream_bsd *bsds;
1788 stream = tstream_context_create(mem_ctx,
1798 talloc_set_destructor(bsds, tstream_bsd_destructor);
1804 struct tstream_bsd_connect_state {
1806 struct tevent_fd *fde;
1807 struct tstream_conext *stream;
1810 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1812 TALLOC_FREE(state->fde);
1813 if (state->fd != -1) {
1821 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1822 struct tevent_fd *fde,
1824 void *private_data);
1826 static struct tevent_req * tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
1827 struct tevent_context *ev,
1829 const struct tsocket_address *local,
1830 const struct tsocket_address *remote)
1832 struct tevent_req *req;
1833 struct tstream_bsd_connect_state *state;
1834 struct tsocket_address_bsd *lbsda =
1835 talloc_get_type_abort(local->private_data,
1836 struct tsocket_address_bsd);
1837 struct tsocket_address_bsd *rbsda =
1838 talloc_get_type_abort(remote->private_data,
1839 struct tsocket_address_bsd);
1843 bool do_bind = false;
1844 bool do_reuseaddr = false;
1845 socklen_t sa_len = sizeof(rbsda->u.ss);
1847 req = tevent_req_create(mem_ctx, &state,
1848 struct tstream_bsd_connect_state);
1855 talloc_set_destructor(state, tstream_bsd_connect_destructor);
1857 /* give the wrappers a chance to report an error */
1858 if (sys_errno != 0) {
1859 tevent_req_error(req, sys_errno);
1863 switch (lbsda->u.sa.sa_family) {
1865 if (lbsda->u.un.sun_path[0] != 0) {
1866 do_reuseaddr = true;
1870 * for unix sockets we can't use the size of sockaddr_storage
1871 * we would get EINVAL
1873 sa_len = sizeof(rbsda->u.un);
1876 if (lbsda->u.in.sin_port != 0) {
1877 do_reuseaddr = true;
1880 if (lbsda->u.in.sin_addr.s_addr == INADDR_ANY) {
1886 if (lbsda->u.in6.sin6_port != 0) {
1887 do_reuseaddr = true;
1890 if (memcmp(&in6addr_any,
1891 &lbsda->u.in6.sin6_addr,
1892 sizeof(in6addr_any)) != 0) {
1898 tevent_req_error(req, EINVAL);
1902 state->fd = socket(lbsda->u.sa.sa_family, SOCK_STREAM, 0);
1903 if (state->fd == -1) {
1904 tevent_req_error(req, errno);
1908 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
1909 if (state->fd == -1) {
1910 tevent_req_error(req, errno);
1917 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
1918 (const void *)&val, sizeof(val));
1920 tevent_req_error(req, errno);
1926 ret = bind(state->fd, &lbsda->u.sa, sizeof(lbsda->u.ss));
1928 tevent_req_error(req, errno);
1933 ret = connect(state->fd, &rbsda->u.sa, sa_len);
1934 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1939 if (tevent_req_error(req, err)) {
1943 tevent_req_done(req);
1947 state->fde = tevent_add_fd(ev, state,
1949 TEVENT_FD_READ | TEVENT_FD_WRITE,
1950 tstream_bsd_connect_fde_handler,
1952 if (tevent_req_nomem(state->fde, req)) {
1959 tevent_req_post(req, ev);
1963 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1964 struct tevent_fd *fde,
1968 struct tevent_req *req = talloc_get_type_abort(private_data,
1970 struct tstream_bsd_connect_state *state = tevent_req_data(req,
1971 struct tstream_bsd_connect_state);
1974 socklen_t len = sizeof(error);
1978 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
1985 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1990 if (tevent_req_error(req, err)) {
1994 tevent_req_done(req);
1997 static int tstream_bsd_connect_recv(struct tevent_req *req,
1999 TALLOC_CTX *mem_ctx,
2000 struct tstream_context **stream,
2001 const char *location)
2003 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2004 struct tstream_bsd_connect_state);
2007 ret = tsocket_simple_int_recv(req, perrno);
2009 ret = _tstream_bsd_existing_socket(mem_ctx,
2017 TALLOC_FREE(state->fde);
2022 tevent_req_received(req);
2026 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2027 struct tevent_context *ev,
2028 const struct tsocket_address *local,
2029 const struct tsocket_address *remote)
2031 struct tsocket_address_bsd *lbsda =
2032 talloc_get_type_abort(local->private_data,
2033 struct tsocket_address_bsd);
2034 struct tevent_req *req;
2037 switch (lbsda->u.sa.sa_family) {
2049 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2054 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2056 TALLOC_CTX *mem_ctx,
2057 struct tstream_context **stream,
2058 const char *location)
2060 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2063 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2064 struct tevent_context *ev,
2065 const struct tsocket_address *local,
2066 const struct tsocket_address *remote)
2068 struct tsocket_address_bsd *lbsda =
2069 talloc_get_type_abort(local->private_data,
2070 struct tsocket_address_bsd);
2071 struct tevent_req *req;
2074 switch (lbsda->u.sa.sa_family) {
2082 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2087 int _tstream_unix_connect_recv(struct tevent_req *req,
2089 TALLOC_CTX *mem_ctx,
2090 struct tstream_context **stream,
2091 const char *location)
2093 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2096 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2097 struct tstream_context **_stream1,
2098 TALLOC_CTX *mem_ctx2,
2099 struct tstream_context **_stream2,
2100 const char *location)
2106 struct tstream_context *stream1 = NULL;
2107 struct tstream_context *stream2 = NULL;
2109 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2116 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2118 int sys_errno = errno;
2124 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2126 int sys_errno = errno;
2132 ret = _tstream_bsd_existing_socket(mem_ctx1,
2137 int sys_errno = errno;
2144 ret = _tstream_bsd_existing_socket(mem_ctx2,
2149 int sys_errno = errno;
2150 talloc_free(stream1);
2156 *_stream1 = stream1;
2157 *_stream2 = stream2;