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)
156 ret = ioctl(fd, FIONREAD, &value);
162 /* this should not be reached */
175 * if no data is available check if the socket is in error state. For
176 * dgram sockets it's the way to return ICMP error messages of
177 * connected sockets to the caller.
179 ret = getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &len);
190 static const struct tsocket_address_ops tsocket_address_bsd_ops;
192 struct tsocket_address_bsd {
195 struct sockaddr_in in;
197 struct sockaddr_in6 in6;
199 struct sockaddr_un un;
200 struct sockaddr_storage ss;
204 static int _tsocket_address_bsd_from_sockaddr(TALLOC_CTX *mem_ctx,
207 struct tsocket_address **_addr,
208 const char *location)
210 struct tsocket_address *addr;
211 struct tsocket_address_bsd *bsda;
213 switch (sa->sa_family) {
215 if (sa_len < sizeof(struct sockaddr_un)) {
221 if (sa_len < sizeof(struct sockaddr_in)) {
228 if (sa_len < sizeof(struct sockaddr_in6)) {
235 errno = EAFNOSUPPORT;
239 if (sa_len > sizeof(struct sockaddr_storage)) {
244 addr = tsocket_address_create(mem_ctx,
245 &tsocket_address_bsd_ops,
247 struct tsocket_address_bsd,
256 memcpy(&bsda->u.ss, sa, sa_len);
262 int _tsocket_address_inet_from_strings(TALLOC_CTX *mem_ctx,
266 struct tsocket_address **_addr,
267 const char *location)
269 struct addrinfo hints;
270 struct addrinfo *result = NULL;
276 * we use SOCKET_STREAM here to get just one result
277 * back from getaddrinfo().
279 hints.ai_socktype = SOCK_STREAM;
280 hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
282 if (strcasecmp(fam, "ip") == 0) {
283 hints.ai_family = AF_UNSPEC;
291 } else if (strcasecmp(fam, "ipv4") == 0) {
292 hints.ai_family = AF_INET;
297 } else if (strcasecmp(fam, "ipv6") == 0) {
298 hints.ai_family = AF_INET6;
304 errno = EAFNOSUPPORT;
308 snprintf(port_str, sizeof(port_str) - 1, "%u", port);
310 ret = getaddrinfo(addr, port_str, &hints, &result);
321 if (result->ai_socktype != SOCK_STREAM) {
327 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
335 freeaddrinfo(result);
340 char *tsocket_address_inet_addr_string(const struct tsocket_address *addr,
343 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
344 struct tsocket_address_bsd);
345 char addr_str[INET6_ADDRSTRLEN+1];
353 switch (bsda->u.sa.sa_family) {
355 str = inet_ntop(bsda->u.in.sin_family,
356 &bsda->u.in.sin_addr,
357 addr_str, sizeof(addr_str));
361 str = inet_ntop(bsda->u.in6.sin6_family,
362 &bsda->u.in6.sin6_addr,
363 addr_str, sizeof(addr_str));
375 return talloc_strdup(mem_ctx, str);
378 uint16_t tsocket_address_inet_port(const struct tsocket_address *addr)
380 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
381 struct tsocket_address_bsd);
389 switch (bsda->u.sa.sa_family) {
391 port = ntohs(bsda->u.in.sin_port);
395 port = ntohs(bsda->u.in6.sin6_port);
406 int tsocket_address_inet_set_port(struct tsocket_address *addr,
409 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
410 struct tsocket_address_bsd);
417 switch (bsda->u.sa.sa_family) {
419 bsda->u.in.sin_port = htons(port);
423 bsda->u.in6.sin6_port = htons(port);
434 int _tsocket_address_unix_from_path(TALLOC_CTX *mem_ctx,
436 struct tsocket_address **_addr,
437 const char *location)
439 struct sockaddr_un un;
448 un.sun_family = AF_UNIX;
449 strncpy(un.sun_path, path, sizeof(un.sun_path));
451 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
452 (struct sockaddr *)p,
460 char *tsocket_address_unix_path(const struct tsocket_address *addr,
463 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
464 struct tsocket_address_bsd);
472 switch (bsda->u.sa.sa_family) {
474 str = bsda->u.un.sun_path;
481 return talloc_strdup(mem_ctx, str);
484 static char *tsocket_address_bsd_string(const struct tsocket_address *addr,
487 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
488 struct tsocket_address_bsd);
491 const char *prefix = NULL;
494 switch (bsda->u.sa.sa_family) {
496 return talloc_asprintf(mem_ctx, "unix:%s",
497 bsda->u.un.sun_path);
511 addr_str = tsocket_address_inet_addr_string(addr, mem_ctx);
516 port = tsocket_address_inet_port(addr);
518 str = talloc_asprintf(mem_ctx, "%s:%s:%u",
519 prefix, addr_str, port);
520 talloc_free(addr_str);
525 static struct tsocket_address *tsocket_address_bsd_copy(const struct tsocket_address *addr,
527 const char *location)
529 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
530 struct tsocket_address_bsd);
531 struct tsocket_address *copy;
534 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
546 static const struct tsocket_address_ops tsocket_address_bsd_ops = {
548 .string = tsocket_address_bsd_string,
549 .copy = tsocket_address_bsd_copy,
556 struct tevent_fd *fde;
558 void *readable_private;
559 void (*readable_handler)(void *private_data);
560 void *writeable_private;
561 void (*writeable_handler)(void *private_data);
564 static void tdgram_bsd_fde_handler(struct tevent_context *ev,
565 struct tevent_fd *fde,
569 struct tdgram_bsd *bsds = talloc_get_type_abort(private_data,
572 if (flags & TEVENT_FD_WRITE) {
573 bsds->writeable_handler(bsds->writeable_private);
576 if (flags & TEVENT_FD_READ) {
577 if (!bsds->readable_handler) {
578 TEVENT_FD_NOT_READABLE(bsds->fde);
581 bsds->readable_handler(bsds->readable_private);
586 static int tdgram_bsd_set_readable_handler(struct tdgram_bsd *bsds,
587 struct tevent_context *ev,
588 void (*handler)(void *private_data),
596 if (!bsds->readable_handler) {
599 bsds->readable_handler = NULL;
600 bsds->readable_private = NULL;
605 /* read and write must use the same tevent_context */
606 if (bsds->event_ptr != ev) {
607 if (bsds->readable_handler || bsds->writeable_handler) {
611 bsds->event_ptr = NULL;
612 TALLOC_FREE(bsds->fde);
615 if (tevent_fd_get_flags(bsds->fde) == 0) {
616 TALLOC_FREE(bsds->fde);
618 bsds->fde = tevent_add_fd(ev, bsds,
619 bsds->fd, TEVENT_FD_READ,
620 tdgram_bsd_fde_handler,
627 /* cache the event context we're running on */
628 bsds->event_ptr = ev;
629 } else if (!bsds->readable_handler) {
630 TEVENT_FD_READABLE(bsds->fde);
633 bsds->readable_handler = handler;
634 bsds->readable_private = private_data;
639 static int tdgram_bsd_set_writeable_handler(struct tdgram_bsd *bsds,
640 struct tevent_context *ev,
641 void (*handler)(void *private_data),
649 if (!bsds->writeable_handler) {
652 bsds->writeable_handler = NULL;
653 bsds->writeable_private = NULL;
654 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
659 /* read and write must use the same tevent_context */
660 if (bsds->event_ptr != ev) {
661 if (bsds->readable_handler || bsds->writeable_handler) {
665 bsds->event_ptr = NULL;
666 TALLOC_FREE(bsds->fde);
669 if (tevent_fd_get_flags(bsds->fde) == 0) {
670 TALLOC_FREE(bsds->fde);
672 bsds->fde = tevent_add_fd(ev, bsds,
673 bsds->fd, TEVENT_FD_WRITE,
674 tdgram_bsd_fde_handler,
681 /* cache the event context we're running on */
682 bsds->event_ptr = ev;
683 } else if (!bsds->writeable_handler) {
684 TEVENT_FD_WRITEABLE(bsds->fde);
687 bsds->writeable_handler = handler;
688 bsds->writeable_private = private_data;
693 struct tdgram_bsd_recvfrom_state {
694 struct tdgram_context *dgram;
698 struct tsocket_address *src;
701 static int tdgram_bsd_recvfrom_destructor(struct tdgram_bsd_recvfrom_state *state)
703 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
706 tdgram_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
711 static void tdgram_bsd_recvfrom_handler(void *private_data);
713 static struct tevent_req *tdgram_bsd_recvfrom_send(TALLOC_CTX *mem_ctx,
714 struct tevent_context *ev,
715 struct tdgram_context *dgram)
717 struct tevent_req *req;
718 struct tdgram_bsd_recvfrom_state *state;
719 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
722 req = tevent_req_create(mem_ctx, &state,
723 struct tdgram_bsd_recvfrom_state);
728 state->dgram = dgram;
733 talloc_set_destructor(state, tdgram_bsd_recvfrom_destructor);
735 if (bsds->fd == -1) {
736 tevent_req_error(req, ENOTCONN);
741 * this is a fast path, not waiting for the
742 * socket to become explicit readable gains
743 * about 10%-20% performance in benchmark tests.
745 tdgram_bsd_recvfrom_handler(req);
746 if (!tevent_req_is_in_progress(req)) {
750 ret = tdgram_bsd_set_readable_handler(bsds, ev,
751 tdgram_bsd_recvfrom_handler,
754 tevent_req_error(req, errno);
761 tevent_req_post(req, ev);
765 static void tdgram_bsd_recvfrom_handler(void *private_data)
767 struct tevent_req *req = talloc_get_type_abort(private_data,
769 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
770 struct tdgram_bsd_recvfrom_state);
771 struct tdgram_context *dgram = state->dgram;
772 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
773 struct tsocket_address_bsd *bsda;
775 struct sockaddr *sa = NULL;
776 socklen_t sa_len = 0;
780 ret = tsocket_bsd_pending(bsds->fd);
785 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
790 if (tevent_req_error(req, err)) {
794 state->buf = talloc_array(state, uint8_t, ret);
795 if (tevent_req_nomem(state->buf, req)) {
800 state->src = tsocket_address_create(state,
801 &tsocket_address_bsd_ops,
803 struct tsocket_address_bsd,
804 __location__ "bsd_recvfrom");
805 if (tevent_req_nomem(state->src, req)) {
812 sa_len = sizeof(bsda->u.ss);
814 * for unix sockets we can't use the size of sockaddr_storage
815 * we would get EINVAL
817 if (bsda->u.sa.sa_family == AF_UNIX) {
818 sa_len = sizeof(bsda->u.un);
821 ret = recvfrom(bsds->fd, state->buf, state->len, 0, sa, &sa_len);
822 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
827 if (tevent_req_error(req, err)) {
831 if (ret != state->len) {
832 tevent_req_error(req, EIO);
836 tevent_req_done(req);
839 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
843 struct tsocket_address **src)
845 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
846 struct tdgram_bsd_recvfrom_state);
849 ret = tsocket_simple_int_recv(req, perrno);
851 *buf = talloc_move(mem_ctx, &state->buf);
854 *src = talloc_move(mem_ctx, &state->src);
858 tevent_req_received(req);
862 struct tdgram_bsd_sendto_state {
863 struct tdgram_context *dgram;
867 const struct tsocket_address *dst;
872 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
874 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
877 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
882 static void tdgram_bsd_sendto_handler(void *private_data);
884 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
885 struct tevent_context *ev,
886 struct tdgram_context *dgram,
889 const struct tsocket_address *dst)
891 struct tevent_req *req;
892 struct tdgram_bsd_sendto_state *state;
893 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
896 req = tevent_req_create(mem_ctx, &state,
897 struct tdgram_bsd_sendto_state);
902 state->dgram = dgram;
908 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
910 if (bsds->fd == -1) {
911 tevent_req_error(req, ENOTCONN);
916 * this is a fast path, not waiting for the
917 * socket to become explicit writeable gains
918 * about 10%-20% performance in benchmark tests.
920 tdgram_bsd_sendto_handler(req);
921 if (!tevent_req_is_in_progress(req)) {
925 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
926 tdgram_bsd_sendto_handler,
929 tevent_req_error(req, errno);
936 tevent_req_post(req, ev);
940 static void tdgram_bsd_sendto_handler(void *private_data)
942 struct tevent_req *req = talloc_get_type_abort(private_data,
944 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
945 struct tdgram_bsd_sendto_state);
946 struct tdgram_context *dgram = state->dgram;
947 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
948 struct sockaddr *sa = NULL;
949 socklen_t sa_len = 0;
955 struct tsocket_address_bsd *bsda =
956 talloc_get_type(state->dst->private_data,
957 struct tsocket_address_bsd);
960 sa_len = sizeof(bsda->u.ss);
962 * for unix sockets we can't use the size of sockaddr_storage
963 * we would get EINVAL
965 if (bsda->u.sa.sa_family == AF_UNIX) {
966 sa_len = sizeof(bsda->u.un);
970 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_len);
971 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
976 if (tevent_req_error(req, err)) {
982 tevent_req_done(req);
985 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
987 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
988 struct tdgram_bsd_sendto_state);
991 ret = tsocket_simple_int_recv(req, perrno);
996 tevent_req_received(req);
1000 struct tdgram_bsd_disconnect_state {
1004 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1005 struct tevent_context *ev,
1006 struct tdgram_context *dgram)
1008 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1009 struct tevent_req *req;
1010 struct tdgram_bsd_disconnect_state *state;
1015 req = tevent_req_create(mem_ctx, &state,
1016 struct tdgram_bsd_disconnect_state);
1021 if (bsds->fd == -1) {
1022 tevent_req_error(req, ENOTCONN);
1026 ret = close(bsds->fd);
1028 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1029 if (tevent_req_error(req, err)) {
1033 tevent_req_done(req);
1035 tevent_req_post(req, ev);
1039 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1044 ret = tsocket_simple_int_recv(req, perrno);
1046 tevent_req_received(req);
1050 static const struct tdgram_context_ops tdgram_bsd_ops = {
1053 .recvfrom_send = tdgram_bsd_recvfrom_send,
1054 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1056 .sendto_send = tdgram_bsd_sendto_send,
1057 .sendto_recv = tdgram_bsd_sendto_recv,
1059 .disconnect_send = tdgram_bsd_disconnect_send,
1060 .disconnect_recv = tdgram_bsd_disconnect_recv,
1063 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1065 TALLOC_FREE(bsds->fde);
1066 if (bsds->fd != -1) {
1073 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1074 const struct tsocket_address *remote,
1076 TALLOC_CTX *mem_ctx,
1077 struct tdgram_context **_dgram,
1078 const char *location)
1080 struct tsocket_address_bsd *lbsda =
1081 talloc_get_type_abort(local->private_data,
1082 struct tsocket_address_bsd);
1083 struct tsocket_address_bsd *rbsda = NULL;
1084 struct tdgram_context *dgram;
1085 struct tdgram_bsd *bsds;
1088 bool do_bind = false;
1089 bool do_reuseaddr = false;
1090 socklen_t sa_len = sizeof(lbsda->u.ss);
1093 rbsda = talloc_get_type_abort(remote->private_data,
1094 struct tsocket_address_bsd);
1097 switch (lbsda->u.sa.sa_family) {
1103 if (lbsda->u.un.sun_path[0] != 0) {
1104 do_reuseaddr = true;
1108 * for unix sockets we can't use the size of sockaddr_storage
1109 * we would get EINVAL
1111 sa_len = sizeof(lbsda->u.un);
1114 if (lbsda->u.in.sin_port != 0) {
1115 do_reuseaddr = true;
1118 if (lbsda->u.in.sin_addr.s_addr == INADDR_ANY) {
1124 if (lbsda->u.in6.sin6_port != 0) {
1125 do_reuseaddr = true;
1128 if (memcmp(&in6addr_any,
1129 &lbsda->u.in6.sin6_addr,
1130 sizeof(in6addr_any)) != 0) {
1140 fd = socket(lbsda->u.sa.sa_family, SOCK_DGRAM, 0);
1145 fd = tsocket_bsd_common_prepare_fd(fd, true);
1150 dgram = tdgram_context_create(mem_ctx,
1156 int saved_errno = errno;
1158 errno = saved_errno;
1163 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1168 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1169 (const void *)&val, sizeof(val));
1171 int saved_errno = errno;
1173 errno = saved_errno;
1181 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1182 (const void *)&val, sizeof(val));
1184 int saved_errno = errno;
1186 errno = saved_errno;
1192 ret = bind(fd, &lbsda->u.sa, sa_len);
1194 int saved_errno = errno;
1196 errno = saved_errno;
1202 ret = connect(fd, &rbsda->u.sa, sa_len);
1204 int saved_errno = errno;
1206 errno = saved_errno;
1215 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
1216 const struct tsocket_address *remote,
1217 TALLOC_CTX *mem_ctx,
1218 struct tdgram_context **dgram,
1219 const char *location)
1221 struct tsocket_address_bsd *lbsda =
1222 talloc_get_type_abort(local->private_data,
1223 struct tsocket_address_bsd);
1226 switch (lbsda->u.sa.sa_family) {
1238 ret = tdgram_bsd_dgram_socket(local, remote, false,
1239 mem_ctx, dgram, location);
1244 int _tdgram_unix_socket(const struct tsocket_address *local,
1245 const struct tsocket_address *remote,
1246 TALLOC_CTX *mem_ctx,
1247 struct tdgram_context **dgram,
1248 const char *location)
1250 struct tsocket_address_bsd *lbsda =
1251 talloc_get_type_abort(local->private_data,
1252 struct tsocket_address_bsd);
1255 switch (lbsda->u.sa.sa_family) {
1263 ret = tdgram_bsd_dgram_socket(local, remote, false,
1264 mem_ctx, dgram, location);
1269 struct tstream_bsd {
1273 struct tevent_fd *fde;
1275 void *readable_private;
1276 void (*readable_handler)(void *private_data);
1277 void *writeable_private;
1278 void (*writeable_handler)(void *private_data);
1281 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1282 struct tevent_fd *fde,
1286 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1287 struct tstream_bsd);
1289 if (flags & TEVENT_FD_WRITE) {
1290 bsds->writeable_handler(bsds->writeable_private);
1293 if (flags & TEVENT_FD_READ) {
1294 if (!bsds->readable_handler) {
1295 TEVENT_FD_NOT_READABLE(bsds->fde);
1298 bsds->readable_handler(bsds->readable_private);
1303 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1304 struct tevent_context *ev,
1305 void (*handler)(void *private_data),
1313 if (!bsds->readable_handler) {
1316 bsds->readable_handler = NULL;
1317 bsds->readable_private = NULL;
1322 /* read and write must use the same tevent_context */
1323 if (bsds->event_ptr != ev) {
1324 if (bsds->readable_handler || bsds->writeable_handler) {
1328 bsds->event_ptr = NULL;
1329 TALLOC_FREE(bsds->fde);
1332 if (tevent_fd_get_flags(bsds->fde) == 0) {
1333 TALLOC_FREE(bsds->fde);
1335 bsds->fde = tevent_add_fd(ev, bsds,
1336 bsds->fd, TEVENT_FD_READ,
1337 tstream_bsd_fde_handler,
1344 /* cache the event context we're running on */
1345 bsds->event_ptr = ev;
1346 } else if (!bsds->readable_handler) {
1347 TEVENT_FD_READABLE(bsds->fde);
1350 bsds->readable_handler = handler;
1351 bsds->readable_private = private_data;
1356 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1357 struct tevent_context *ev,
1358 void (*handler)(void *private_data),
1366 if (!bsds->writeable_handler) {
1369 bsds->writeable_handler = NULL;
1370 bsds->writeable_private = NULL;
1371 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
1376 /* read and write must use the same tevent_context */
1377 if (bsds->event_ptr != ev) {
1378 if (bsds->readable_handler || bsds->writeable_handler) {
1382 bsds->event_ptr = NULL;
1383 TALLOC_FREE(bsds->fde);
1386 if (tevent_fd_get_flags(bsds->fde) == 0) {
1387 TALLOC_FREE(bsds->fde);
1389 bsds->fde = tevent_add_fd(ev, bsds,
1390 bsds->fd, TEVENT_FD_WRITE,
1391 tstream_bsd_fde_handler,
1398 /* cache the event context we're running on */
1399 bsds->event_ptr = ev;
1400 } else if (!bsds->writeable_handler) {
1401 TEVENT_FD_WRITEABLE(bsds->fde);
1404 bsds->writeable_handler = handler;
1405 bsds->writeable_private = private_data;
1410 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1412 struct tstream_bsd *bsds = tstream_context_data(stream,
1413 struct tstream_bsd);
1416 if (bsds->fd == -1) {
1421 ret = tsocket_bsd_pending(bsds->fd);
1426 struct tstream_bsd_readv_state {
1427 struct tstream_context *stream;
1429 struct iovec *vector;
1435 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1437 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1438 struct tstream_bsd);
1440 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1445 static void tstream_bsd_readv_handler(void *private_data);
1447 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1448 struct tevent_context *ev,
1449 struct tstream_context *stream,
1450 struct iovec *vector,
1453 struct tevent_req *req;
1454 struct tstream_bsd_readv_state *state;
1455 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1458 req = tevent_req_create(mem_ctx, &state,
1459 struct tstream_bsd_readv_state);
1464 state->stream = stream;
1465 /* we make a copy of the vector so that we can modify it */
1466 state->vector = talloc_array(state, struct iovec, count);
1467 if (tevent_req_nomem(state->vector, req)) {
1470 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1471 state->count = count;
1474 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1476 if (bsds->fd == -1) {
1477 tevent_req_error(req, ENOTCONN);
1482 * this is a fast path, not waiting for the
1483 * socket to become explicit readable gains
1484 * about 10%-20% performance in benchmark tests.
1486 tstream_bsd_readv_handler(req);
1487 if (!tevent_req_is_in_progress(req)) {
1491 ret = tstream_bsd_set_readable_handler(bsds, ev,
1492 tstream_bsd_readv_handler,
1495 tevent_req_error(req, errno);
1502 tevent_req_post(req, ev);
1506 static void tstream_bsd_readv_handler(void *private_data)
1508 struct tevent_req *req = talloc_get_type_abort(private_data,
1510 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1511 struct tstream_bsd_readv_state);
1512 struct tstream_context *stream = state->stream;
1513 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1518 ret = readv(bsds->fd, state->vector, state->count);
1520 /* propagate end of file */
1521 tevent_req_error(req, EPIPE);
1524 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1529 if (tevent_req_error(req, err)) {
1536 if (ret < state->vector[0].iov_len) {
1538 base = (uint8_t *)state->vector[0].iov_base;
1540 state->vector[0].iov_base = base;
1541 state->vector[0].iov_len -= ret;
1544 ret -= state->vector[0].iov_len;
1550 * there're maybe some empty vectors at the end
1551 * which we need to skip, otherwise we would get
1552 * ret == 0 from the readv() call and return EPIPE
1554 while (state->count > 0) {
1555 if (state->vector[0].iov_len > 0) {
1562 if (state->count > 0) {
1563 /* we have more to read */
1567 tevent_req_done(req);
1570 static int tstream_bsd_readv_recv(struct tevent_req *req,
1573 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1574 struct tstream_bsd_readv_state);
1577 ret = tsocket_simple_int_recv(req, perrno);
1582 tevent_req_received(req);
1586 struct tstream_bsd_writev_state {
1587 struct tstream_context *stream;
1589 struct iovec *vector;
1595 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1597 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1598 struct tstream_bsd);
1600 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1605 static void tstream_bsd_writev_handler(void *private_data);
1607 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1608 struct tevent_context *ev,
1609 struct tstream_context *stream,
1610 const struct iovec *vector,
1613 struct tevent_req *req;
1614 struct tstream_bsd_writev_state *state;
1615 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1618 req = tevent_req_create(mem_ctx, &state,
1619 struct tstream_bsd_writev_state);
1624 state->stream = stream;
1625 /* we make a copy of the vector so that we can modify it */
1626 state->vector = talloc_array(state, struct iovec, count);
1627 if (tevent_req_nomem(state->vector, req)) {
1630 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1631 state->count = count;
1634 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1636 if (bsds->fd == -1) {
1637 tevent_req_error(req, ENOTCONN);
1642 * this is a fast path, not waiting for the
1643 * socket to become explicit writeable gains
1644 * about 10%-20% performance in benchmark tests.
1646 tstream_bsd_writev_handler(req);
1647 if (!tevent_req_is_in_progress(req)) {
1651 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1652 tstream_bsd_writev_handler,
1655 tevent_req_error(req, errno);
1662 tevent_req_post(req, ev);
1666 static void tstream_bsd_writev_handler(void *private_data)
1668 struct tevent_req *req = talloc_get_type_abort(private_data,
1670 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1671 struct tstream_bsd_writev_state);
1672 struct tstream_context *stream = state->stream;
1673 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1678 ret = writev(bsds->fd, state->vector, state->count);
1680 /* propagate end of file */
1681 tevent_req_error(req, EPIPE);
1684 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1689 if (tevent_req_error(req, err)) {
1696 if (ret < state->vector[0].iov_len) {
1698 base = (uint8_t *)state->vector[0].iov_base;
1700 state->vector[0].iov_base = base;
1701 state->vector[0].iov_len -= ret;
1704 ret -= state->vector[0].iov_len;
1710 * there're maybe some empty vectors at the end
1711 * which we need to skip, otherwise we would get
1712 * ret == 0 from the writev() call and return EPIPE
1714 while (state->count > 0) {
1715 if (state->vector[0].iov_len > 0) {
1722 if (state->count > 0) {
1723 /* we have more to read */
1727 tevent_req_done(req);
1730 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1732 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1733 struct tstream_bsd_writev_state);
1736 ret = tsocket_simple_int_recv(req, perrno);
1741 tevent_req_received(req);
1745 struct tstream_bsd_disconnect_state {
1749 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1750 struct tevent_context *ev,
1751 struct tstream_context *stream)
1753 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1754 struct tevent_req *req;
1755 struct tstream_bsd_disconnect_state *state;
1760 req = tevent_req_create(mem_ctx, &state,
1761 struct tstream_bsd_disconnect_state);
1766 if (bsds->fd == -1) {
1767 tevent_req_error(req, ENOTCONN);
1771 ret = close(bsds->fd);
1773 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1774 if (tevent_req_error(req, err)) {
1778 tevent_req_done(req);
1780 tevent_req_post(req, ev);
1784 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1789 ret = tsocket_simple_int_recv(req, perrno);
1791 tevent_req_received(req);
1795 static const struct tstream_context_ops tstream_bsd_ops = {
1798 .pending_bytes = tstream_bsd_pending_bytes,
1800 .readv_send = tstream_bsd_readv_send,
1801 .readv_recv = tstream_bsd_readv_recv,
1803 .writev_send = tstream_bsd_writev_send,
1804 .writev_recv = tstream_bsd_writev_recv,
1806 .disconnect_send = tstream_bsd_disconnect_send,
1807 .disconnect_recv = tstream_bsd_disconnect_recv,
1810 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1812 TALLOC_FREE(bsds->fde);
1813 if (bsds->fd != -1) {
1820 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1822 struct tstream_context **_stream,
1823 const char *location)
1825 struct tstream_context *stream;
1826 struct tstream_bsd *bsds;
1828 stream = tstream_context_create(mem_ctx,
1838 talloc_set_destructor(bsds, tstream_bsd_destructor);
1844 struct tstream_bsd_connect_state {
1846 struct tevent_fd *fde;
1847 struct tstream_conext *stream;
1850 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1852 TALLOC_FREE(state->fde);
1853 if (state->fd != -1) {
1861 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1862 struct tevent_fd *fde,
1864 void *private_data);
1866 static struct tevent_req * tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
1867 struct tevent_context *ev,
1869 const struct tsocket_address *local,
1870 const struct tsocket_address *remote)
1872 struct tevent_req *req;
1873 struct tstream_bsd_connect_state *state;
1874 struct tsocket_address_bsd *lbsda =
1875 talloc_get_type_abort(local->private_data,
1876 struct tsocket_address_bsd);
1877 struct tsocket_address_bsd *rbsda =
1878 talloc_get_type_abort(remote->private_data,
1879 struct tsocket_address_bsd);
1883 bool do_bind = false;
1884 bool do_reuseaddr = false;
1885 socklen_t sa_len = sizeof(rbsda->u.ss);
1887 req = tevent_req_create(mem_ctx, &state,
1888 struct tstream_bsd_connect_state);
1895 talloc_set_destructor(state, tstream_bsd_connect_destructor);
1897 /* give the wrappers a chance to report an error */
1898 if (sys_errno != 0) {
1899 tevent_req_error(req, sys_errno);
1903 switch (lbsda->u.sa.sa_family) {
1905 if (lbsda->u.un.sun_path[0] != 0) {
1906 do_reuseaddr = true;
1910 * for unix sockets we can't use the size of sockaddr_storage
1911 * we would get EINVAL
1913 sa_len = sizeof(rbsda->u.un);
1916 if (lbsda->u.in.sin_port != 0) {
1917 do_reuseaddr = true;
1920 if (lbsda->u.in.sin_addr.s_addr == INADDR_ANY) {
1926 if (lbsda->u.in6.sin6_port != 0) {
1927 do_reuseaddr = true;
1930 if (memcmp(&in6addr_any,
1931 &lbsda->u.in6.sin6_addr,
1932 sizeof(in6addr_any)) != 0) {
1938 tevent_req_error(req, EINVAL);
1942 state->fd = socket(lbsda->u.sa.sa_family, SOCK_STREAM, 0);
1943 if (state->fd == -1) {
1944 tevent_req_error(req, errno);
1948 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
1949 if (state->fd == -1) {
1950 tevent_req_error(req, errno);
1957 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
1958 (const void *)&val, sizeof(val));
1960 tevent_req_error(req, errno);
1966 ret = bind(state->fd, &lbsda->u.sa, sizeof(lbsda->u.ss));
1968 tevent_req_error(req, errno);
1973 ret = connect(state->fd, &rbsda->u.sa, sa_len);
1974 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1979 if (tevent_req_error(req, err)) {
1983 tevent_req_done(req);
1987 state->fde = tevent_add_fd(ev, state,
1989 TEVENT_FD_READ | TEVENT_FD_WRITE,
1990 tstream_bsd_connect_fde_handler,
1992 if (tevent_req_nomem(state->fde, req)) {
1999 tevent_req_post(req, ev);
2003 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
2004 struct tevent_fd *fde,
2008 struct tevent_req *req = talloc_get_type_abort(private_data,
2010 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2011 struct tstream_bsd_connect_state);
2014 socklen_t len = sizeof(error);
2018 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
2025 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2030 if (tevent_req_error(req, err)) {
2034 tevent_req_done(req);
2037 static int tstream_bsd_connect_recv(struct tevent_req *req,
2039 TALLOC_CTX *mem_ctx,
2040 struct tstream_context **stream,
2041 const char *location)
2043 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2044 struct tstream_bsd_connect_state);
2047 ret = tsocket_simple_int_recv(req, perrno);
2049 ret = _tstream_bsd_existing_socket(mem_ctx,
2057 TALLOC_FREE(state->fde);
2062 tevent_req_received(req);
2066 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2067 struct tevent_context *ev,
2068 const struct tsocket_address *local,
2069 const struct tsocket_address *remote)
2071 struct tsocket_address_bsd *lbsda =
2072 talloc_get_type_abort(local->private_data,
2073 struct tsocket_address_bsd);
2074 struct tevent_req *req;
2077 switch (lbsda->u.sa.sa_family) {
2089 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2094 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2096 TALLOC_CTX *mem_ctx,
2097 struct tstream_context **stream,
2098 const char *location)
2100 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2103 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2104 struct tevent_context *ev,
2105 const struct tsocket_address *local,
2106 const struct tsocket_address *remote)
2108 struct tsocket_address_bsd *lbsda =
2109 talloc_get_type_abort(local->private_data,
2110 struct tsocket_address_bsd);
2111 struct tevent_req *req;
2114 switch (lbsda->u.sa.sa_family) {
2122 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2127 int _tstream_unix_connect_recv(struct tevent_req *req,
2129 TALLOC_CTX *mem_ctx,
2130 struct tstream_context **stream,
2131 const char *location)
2133 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2136 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2137 struct tstream_context **_stream1,
2138 TALLOC_CTX *mem_ctx2,
2139 struct tstream_context **_stream2,
2140 const char *location)
2146 struct tstream_context *stream1 = NULL;
2147 struct tstream_context *stream2 = NULL;
2149 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2156 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2158 int sys_errno = errno;
2164 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2166 int sys_errno = errno;
2172 ret = _tstream_bsd_existing_socket(mem_ctx1,
2177 int sys_errno = errno;
2184 ret = _tstream_bsd_existing_socket(mem_ctx2,
2189 int sys_errno = errno;
2190 talloc_free(stream1);
2196 *_stream1 = stream1;
2197 *_stream2 = stream2;