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 (bsds->fde == NULL) {
616 bsds->fde = tevent_add_fd(ev, bsds,
617 bsds->fd, TEVENT_FD_READ,
618 tdgram_bsd_fde_handler,
625 /* cache the event context we're running on */
626 bsds->event_ptr = ev;
627 } else if (!bsds->readable_handler) {
628 TEVENT_FD_READABLE(bsds->fde);
631 bsds->readable_handler = handler;
632 bsds->readable_private = private_data;
637 static int tdgram_bsd_set_writeable_handler(struct tdgram_bsd *bsds,
638 struct tevent_context *ev,
639 void (*handler)(void *private_data),
647 if (!bsds->writeable_handler) {
650 bsds->writeable_handler = NULL;
651 bsds->writeable_private = NULL;
652 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
657 /* read and write must use the same tevent_context */
658 if (bsds->event_ptr != ev) {
659 if (bsds->readable_handler || bsds->writeable_handler) {
663 bsds->event_ptr = NULL;
664 TALLOC_FREE(bsds->fde);
667 if (bsds->fde == NULL) {
668 bsds->fde = tevent_add_fd(ev, bsds,
669 bsds->fd, TEVENT_FD_WRITE,
670 tdgram_bsd_fde_handler,
677 /* cache the event context we're running on */
678 bsds->event_ptr = ev;
679 } else if (!bsds->writeable_handler) {
680 TEVENT_FD_WRITEABLE(bsds->fde);
683 bsds->writeable_handler = handler;
684 bsds->writeable_private = private_data;
689 struct tdgram_bsd_recvfrom_state {
690 struct tdgram_context *dgram;
694 struct tsocket_address *src;
697 static int tdgram_bsd_recvfrom_destructor(struct tdgram_bsd_recvfrom_state *state)
699 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
702 tdgram_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
707 static void tdgram_bsd_recvfrom_handler(void *private_data);
709 static struct tevent_req *tdgram_bsd_recvfrom_send(TALLOC_CTX *mem_ctx,
710 struct tevent_context *ev,
711 struct tdgram_context *dgram)
713 struct tevent_req *req;
714 struct tdgram_bsd_recvfrom_state *state;
715 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
718 req = tevent_req_create(mem_ctx, &state,
719 struct tdgram_bsd_recvfrom_state);
724 state->dgram = dgram;
729 talloc_set_destructor(state, tdgram_bsd_recvfrom_destructor);
731 if (bsds->fd == -1) {
732 tevent_req_error(req, ENOTCONN);
737 * this is a fast path, not waiting for the
738 * socket to become explicit readable gains
739 * about 10%-20% performance in benchmark tests.
741 tdgram_bsd_recvfrom_handler(req);
742 if (!tevent_req_is_in_progress(req)) {
746 ret = tdgram_bsd_set_readable_handler(bsds, ev,
747 tdgram_bsd_recvfrom_handler,
750 tevent_req_error(req, errno);
757 tevent_req_post(req, ev);
761 static void tdgram_bsd_recvfrom_handler(void *private_data)
763 struct tevent_req *req = talloc_get_type_abort(private_data,
765 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
766 struct tdgram_bsd_recvfrom_state);
767 struct tdgram_context *dgram = state->dgram;
768 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
769 struct tsocket_address_bsd *bsda;
771 struct sockaddr *sa = NULL;
772 socklen_t sa_len = 0;
776 ret = tsocket_bsd_pending(bsds->fd);
781 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
786 if (tevent_req_error(req, err)) {
790 state->buf = talloc_array(state, uint8_t, ret);
791 if (tevent_req_nomem(state->buf, req)) {
796 state->src = tsocket_address_create(state,
797 &tsocket_address_bsd_ops,
799 struct tsocket_address_bsd,
800 __location__ "bsd_recvfrom");
801 if (tevent_req_nomem(state->src, req)) {
808 sa_len = sizeof(bsda->u.ss);
810 * for unix sockets we can't use the size of sockaddr_storage
811 * we would get EINVAL
813 if (bsda->u.sa.sa_family == AF_UNIX) {
814 sa_len = sizeof(bsda->u.un);
817 ret = recvfrom(bsds->fd, state->buf, state->len, 0, sa, &sa_len);
818 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
823 if (tevent_req_error(req, err)) {
827 if (ret != state->len) {
828 tevent_req_error(req, EIO);
832 tevent_req_done(req);
835 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
839 struct tsocket_address **src)
841 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
842 struct tdgram_bsd_recvfrom_state);
845 ret = tsocket_simple_int_recv(req, perrno);
847 *buf = talloc_move(mem_ctx, &state->buf);
850 *src = talloc_move(mem_ctx, &state->src);
854 tevent_req_received(req);
858 struct tdgram_bsd_sendto_state {
859 struct tdgram_context *dgram;
863 const struct tsocket_address *dst;
868 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
870 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
873 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
878 static void tdgram_bsd_sendto_handler(void *private_data);
880 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
881 struct tevent_context *ev,
882 struct tdgram_context *dgram,
885 const struct tsocket_address *dst)
887 struct tevent_req *req;
888 struct tdgram_bsd_sendto_state *state;
889 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
892 req = tevent_req_create(mem_ctx, &state,
893 struct tdgram_bsd_sendto_state);
898 state->dgram = dgram;
904 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
906 if (bsds->fd == -1) {
907 tevent_req_error(req, ENOTCONN);
912 * this is a fast path, not waiting for the
913 * socket to become explicit writeable gains
914 * about 10%-20% performance in benchmark tests.
916 tdgram_bsd_sendto_handler(req);
917 if (!tevent_req_is_in_progress(req)) {
921 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
922 tdgram_bsd_sendto_handler,
925 tevent_req_error(req, errno);
932 tevent_req_post(req, ev);
936 static void tdgram_bsd_sendto_handler(void *private_data)
938 struct tevent_req *req = talloc_get_type_abort(private_data,
940 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
941 struct tdgram_bsd_sendto_state);
942 struct tdgram_context *dgram = state->dgram;
943 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
944 struct sockaddr *sa = NULL;
945 socklen_t sa_len = 0;
951 struct tsocket_address_bsd *bsda =
952 talloc_get_type(state->dst->private_data,
953 struct tsocket_address_bsd);
956 sa_len = sizeof(bsda->u.ss);
958 * for unix sockets we can't use the size of sockaddr_storage
959 * we would get EINVAL
961 if (bsda->u.sa.sa_family == AF_UNIX) {
962 sa_len = sizeof(bsda->u.un);
966 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_len);
967 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
972 if (tevent_req_error(req, err)) {
978 tevent_req_done(req);
981 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
983 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
984 struct tdgram_bsd_sendto_state);
987 ret = tsocket_simple_int_recv(req, perrno);
992 tevent_req_received(req);
996 struct tdgram_bsd_disconnect_state {
1000 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1001 struct tevent_context *ev,
1002 struct tdgram_context *dgram)
1004 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1005 struct tevent_req *req;
1006 struct tdgram_bsd_disconnect_state *state;
1011 req = tevent_req_create(mem_ctx, &state,
1012 struct tdgram_bsd_disconnect_state);
1017 if (bsds->fd == -1) {
1018 tevent_req_error(req, ENOTCONN);
1022 ret = close(bsds->fd);
1024 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1025 if (tevent_req_error(req, err)) {
1029 tevent_req_done(req);
1031 tevent_req_post(req, ev);
1035 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1040 ret = tsocket_simple_int_recv(req, perrno);
1042 tevent_req_received(req);
1046 static const struct tdgram_context_ops tdgram_bsd_ops = {
1049 .recvfrom_send = tdgram_bsd_recvfrom_send,
1050 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1052 .sendto_send = tdgram_bsd_sendto_send,
1053 .sendto_recv = tdgram_bsd_sendto_recv,
1055 .disconnect_send = tdgram_bsd_disconnect_send,
1056 .disconnect_recv = tdgram_bsd_disconnect_recv,
1059 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1061 TALLOC_FREE(bsds->fde);
1062 if (bsds->fd != -1) {
1069 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1070 const struct tsocket_address *remote,
1072 TALLOC_CTX *mem_ctx,
1073 struct tdgram_context **_dgram,
1074 const char *location)
1076 struct tsocket_address_bsd *lbsda =
1077 talloc_get_type_abort(local->private_data,
1078 struct tsocket_address_bsd);
1079 struct tsocket_address_bsd *rbsda = NULL;
1080 struct tdgram_context *dgram;
1081 struct tdgram_bsd *bsds;
1084 bool do_bind = false;
1085 bool do_reuseaddr = false;
1086 socklen_t sa_len = sizeof(lbsda->u.ss);
1089 rbsda = talloc_get_type_abort(remote->private_data,
1090 struct tsocket_address_bsd);
1093 switch (lbsda->u.sa.sa_family) {
1099 if (lbsda->u.un.sun_path[0] != 0) {
1100 do_reuseaddr = true;
1104 * for unix sockets we can't use the size of sockaddr_storage
1105 * we would get EINVAL
1107 sa_len = sizeof(lbsda->u.un);
1110 if (lbsda->u.in.sin_port != 0) {
1111 do_reuseaddr = true;
1114 if (lbsda->u.in.sin_addr.s_addr == INADDR_ANY) {
1120 if (lbsda->u.in6.sin6_port != 0) {
1121 do_reuseaddr = true;
1124 if (memcmp(&in6addr_any,
1125 &lbsda->u.in6.sin6_addr,
1126 sizeof(in6addr_any)) != 0) {
1136 fd = socket(lbsda->u.sa.sa_family, SOCK_DGRAM, 0);
1141 fd = tsocket_bsd_common_prepare_fd(fd, true);
1146 dgram = tdgram_context_create(mem_ctx,
1152 int saved_errno = errno;
1154 errno = saved_errno;
1159 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1164 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1165 (const void *)&val, sizeof(val));
1167 int saved_errno = errno;
1169 errno = saved_errno;
1177 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1178 (const void *)&val, sizeof(val));
1180 int saved_errno = errno;
1182 errno = saved_errno;
1188 ret = bind(fd, &lbsda->u.sa, sa_len);
1190 int saved_errno = errno;
1192 errno = saved_errno;
1198 ret = connect(fd, &rbsda->u.sa, sa_len);
1200 int saved_errno = errno;
1202 errno = saved_errno;
1211 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
1212 const struct tsocket_address *remote,
1213 TALLOC_CTX *mem_ctx,
1214 struct tdgram_context **dgram,
1215 const char *location)
1217 struct tsocket_address_bsd *lbsda =
1218 talloc_get_type_abort(local->private_data,
1219 struct tsocket_address_bsd);
1222 switch (lbsda->u.sa.sa_family) {
1234 ret = tdgram_bsd_dgram_socket(local, remote, false,
1235 mem_ctx, dgram, location);
1240 int _tdgram_unix_socket(const struct tsocket_address *local,
1241 const struct tsocket_address *remote,
1242 TALLOC_CTX *mem_ctx,
1243 struct tdgram_context **dgram,
1244 const char *location)
1246 struct tsocket_address_bsd *lbsda =
1247 talloc_get_type_abort(local->private_data,
1248 struct tsocket_address_bsd);
1251 switch (lbsda->u.sa.sa_family) {
1259 ret = tdgram_bsd_dgram_socket(local, remote, false,
1260 mem_ctx, dgram, location);
1265 struct tstream_bsd {
1269 struct tevent_fd *fde;
1271 void *readable_private;
1272 void (*readable_handler)(void *private_data);
1273 void *writeable_private;
1274 void (*writeable_handler)(void *private_data);
1277 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1278 struct tevent_fd *fde,
1282 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1283 struct tstream_bsd);
1285 if (flags & TEVENT_FD_WRITE) {
1286 bsds->writeable_handler(bsds->writeable_private);
1289 if (flags & TEVENT_FD_READ) {
1290 if (!bsds->readable_handler) {
1291 TEVENT_FD_NOT_READABLE(bsds->fde);
1294 bsds->readable_handler(bsds->readable_private);
1299 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1300 struct tevent_context *ev,
1301 void (*handler)(void *private_data),
1309 if (!bsds->readable_handler) {
1312 bsds->readable_handler = NULL;
1313 bsds->readable_private = NULL;
1318 /* read and write must use the same tevent_context */
1319 if (bsds->event_ptr != ev) {
1320 if (bsds->readable_handler || bsds->writeable_handler) {
1324 bsds->event_ptr = NULL;
1325 TALLOC_FREE(bsds->fde);
1328 if (bsds->fde == NULL) {
1329 bsds->fde = tevent_add_fd(ev, bsds,
1330 bsds->fd, TEVENT_FD_READ,
1331 tstream_bsd_fde_handler,
1338 /* cache the event context we're running on */
1339 bsds->event_ptr = ev;
1340 } else if (!bsds->readable_handler) {
1341 TEVENT_FD_READABLE(bsds->fde);
1344 bsds->readable_handler = handler;
1345 bsds->readable_private = private_data;
1350 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1351 struct tevent_context *ev,
1352 void (*handler)(void *private_data),
1360 if (!bsds->writeable_handler) {
1363 bsds->writeable_handler = NULL;
1364 bsds->writeable_private = NULL;
1365 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
1370 /* read and write must use the same tevent_context */
1371 if (bsds->event_ptr != ev) {
1372 if (bsds->readable_handler || bsds->writeable_handler) {
1376 bsds->event_ptr = NULL;
1377 TALLOC_FREE(bsds->fde);
1380 if (bsds->fde == NULL) {
1381 bsds->fde = tevent_add_fd(ev, bsds,
1382 bsds->fd, TEVENT_FD_WRITE,
1383 tstream_bsd_fde_handler,
1390 /* cache the event context we're running on */
1391 bsds->event_ptr = ev;
1392 } else if (!bsds->writeable_handler) {
1393 TEVENT_FD_WRITEABLE(bsds->fde);
1396 bsds->writeable_handler = handler;
1397 bsds->writeable_private = private_data;
1402 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1404 struct tstream_bsd *bsds = tstream_context_data(stream,
1405 struct tstream_bsd);
1408 if (bsds->fd == -1) {
1413 ret = tsocket_bsd_pending(bsds->fd);
1418 struct tstream_bsd_readv_state {
1419 struct tstream_context *stream;
1421 struct iovec *vector;
1427 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1429 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1430 struct tstream_bsd);
1432 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1437 static void tstream_bsd_readv_handler(void *private_data);
1439 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1440 struct tevent_context *ev,
1441 struct tstream_context *stream,
1442 struct iovec *vector,
1445 struct tevent_req *req;
1446 struct tstream_bsd_readv_state *state;
1447 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1450 req = tevent_req_create(mem_ctx, &state,
1451 struct tstream_bsd_readv_state);
1456 state->stream = stream;
1457 /* we make a copy of the vector so that we can modify it */
1458 state->vector = talloc_array(state, struct iovec, count);
1459 if (tevent_req_nomem(state->vector, req)) {
1462 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1463 state->count = count;
1466 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1468 if (bsds->fd == -1) {
1469 tevent_req_error(req, ENOTCONN);
1474 * this is a fast path, not waiting for the
1475 * socket to become explicit readable gains
1476 * about 10%-20% performance in benchmark tests.
1478 tstream_bsd_readv_handler(req);
1479 if (!tevent_req_is_in_progress(req)) {
1483 ret = tstream_bsd_set_readable_handler(bsds, ev,
1484 tstream_bsd_readv_handler,
1487 tevent_req_error(req, errno);
1494 tevent_req_post(req, ev);
1498 static void tstream_bsd_readv_handler(void *private_data)
1500 struct tevent_req *req = talloc_get_type_abort(private_data,
1502 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1503 struct tstream_bsd_readv_state);
1504 struct tstream_context *stream = state->stream;
1505 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1510 ret = readv(bsds->fd, state->vector, state->count);
1512 /* propagate end of file */
1513 tevent_req_error(req, EPIPE);
1516 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1521 if (tevent_req_error(req, err)) {
1528 if (ret < state->vector[0].iov_len) {
1530 base = (uint8_t *)state->vector[0].iov_base;
1532 state->vector[0].iov_base = base;
1533 state->vector[0].iov_len -= ret;
1536 ret -= state->vector[0].iov_len;
1541 if (state->count > 0) {
1542 /* we have more to read */
1546 tevent_req_done(req);
1549 static int tstream_bsd_readv_recv(struct tevent_req *req,
1552 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1553 struct tstream_bsd_readv_state);
1556 ret = tsocket_simple_int_recv(req, perrno);
1561 tevent_req_received(req);
1565 struct tstream_bsd_writev_state {
1566 struct tstream_context *stream;
1568 struct iovec *vector;
1574 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1576 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1577 struct tstream_bsd);
1579 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1584 static void tstream_bsd_writev_handler(void *private_data);
1586 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1587 struct tevent_context *ev,
1588 struct tstream_context *stream,
1589 const struct iovec *vector,
1592 struct tevent_req *req;
1593 struct tstream_bsd_writev_state *state;
1594 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1597 req = tevent_req_create(mem_ctx, &state,
1598 struct tstream_bsd_writev_state);
1603 state->stream = stream;
1604 /* we make a copy of the vector so that we can modify it */
1605 state->vector = talloc_array(state, struct iovec, count);
1606 if (tevent_req_nomem(state->vector, req)) {
1609 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1610 state->count = count;
1613 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1615 if (bsds->fd == -1) {
1616 tevent_req_error(req, ENOTCONN);
1621 * this is a fast path, not waiting for the
1622 * socket to become explicit writeable gains
1623 * about 10%-20% performance in benchmark tests.
1625 tstream_bsd_writev_handler(req);
1626 if (!tevent_req_is_in_progress(req)) {
1630 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1631 tstream_bsd_writev_handler,
1634 tevent_req_error(req, errno);
1641 tevent_req_post(req, ev);
1645 static void tstream_bsd_writev_handler(void *private_data)
1647 struct tevent_req *req = talloc_get_type_abort(private_data,
1649 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1650 struct tstream_bsd_writev_state);
1651 struct tstream_context *stream = state->stream;
1652 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1657 ret = writev(bsds->fd, state->vector, state->count);
1659 /* propagate end of file */
1660 tevent_req_error(req, EPIPE);
1663 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1668 if (tevent_req_error(req, err)) {
1675 if (ret < state->vector[0].iov_len) {
1677 base = (uint8_t *)state->vector[0].iov_base;
1679 state->vector[0].iov_base = base;
1680 state->vector[0].iov_len -= ret;
1683 ret -= state->vector[0].iov_len;
1688 if (state->count > 0) {
1689 /* we have more to read */
1693 tevent_req_done(req);
1696 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1698 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1699 struct tstream_bsd_writev_state);
1702 ret = tsocket_simple_int_recv(req, perrno);
1707 tevent_req_received(req);
1711 struct tstream_bsd_disconnect_state {
1715 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1716 struct tevent_context *ev,
1717 struct tstream_context *stream)
1719 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1720 struct tevent_req *req;
1721 struct tstream_bsd_disconnect_state *state;
1726 req = tevent_req_create(mem_ctx, &state,
1727 struct tstream_bsd_disconnect_state);
1732 if (bsds->fd == -1) {
1733 tevent_req_error(req, ENOTCONN);
1737 ret = close(bsds->fd);
1739 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1740 if (tevent_req_error(req, err)) {
1744 tevent_req_done(req);
1746 tevent_req_post(req, ev);
1750 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1755 ret = tsocket_simple_int_recv(req, perrno);
1757 tevent_req_received(req);
1761 static const struct tstream_context_ops tstream_bsd_ops = {
1764 .pending_bytes = tstream_bsd_pending_bytes,
1766 .readv_send = tstream_bsd_readv_send,
1767 .readv_recv = tstream_bsd_readv_recv,
1769 .writev_send = tstream_bsd_writev_send,
1770 .writev_recv = tstream_bsd_writev_recv,
1772 .disconnect_send = tstream_bsd_disconnect_send,
1773 .disconnect_recv = tstream_bsd_disconnect_recv,
1776 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1778 TALLOC_FREE(bsds->fde);
1779 if (bsds->fd != -1) {
1786 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1788 struct tstream_context **_stream,
1789 const char *location)
1791 struct tstream_context *stream;
1792 struct tstream_bsd *bsds;
1794 stream = tstream_context_create(mem_ctx,
1804 talloc_set_destructor(bsds, tstream_bsd_destructor);
1810 struct tstream_bsd_connect_state {
1812 struct tevent_fd *fde;
1813 struct tstream_conext *stream;
1816 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1818 TALLOC_FREE(state->fde);
1819 if (state->fd != -1) {
1827 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1828 struct tevent_fd *fde,
1830 void *private_data);
1832 static struct tevent_req * tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
1833 struct tevent_context *ev,
1835 const struct tsocket_address *local,
1836 const struct tsocket_address *remote)
1838 struct tevent_req *req;
1839 struct tstream_bsd_connect_state *state;
1840 struct tsocket_address_bsd *lbsda =
1841 talloc_get_type_abort(local->private_data,
1842 struct tsocket_address_bsd);
1843 struct tsocket_address_bsd *rbsda =
1844 talloc_get_type_abort(remote->private_data,
1845 struct tsocket_address_bsd);
1849 bool do_bind = false;
1850 bool do_reuseaddr = false;
1851 socklen_t sa_len = sizeof(rbsda->u.ss);
1853 req = tevent_req_create(mem_ctx, &state,
1854 struct tstream_bsd_connect_state);
1861 talloc_set_destructor(state, tstream_bsd_connect_destructor);
1863 /* give the wrappers a chance to report an error */
1864 if (sys_errno != 0) {
1865 tevent_req_error(req, sys_errno);
1869 switch (lbsda->u.sa.sa_family) {
1871 if (lbsda->u.un.sun_path[0] != 0) {
1872 do_reuseaddr = true;
1876 * for unix sockets we can't use the size of sockaddr_storage
1877 * we would get EINVAL
1879 sa_len = sizeof(rbsda->u.un);
1882 if (lbsda->u.in.sin_port != 0) {
1883 do_reuseaddr = true;
1886 if (lbsda->u.in.sin_addr.s_addr == INADDR_ANY) {
1892 if (lbsda->u.in6.sin6_port != 0) {
1893 do_reuseaddr = true;
1896 if (memcmp(&in6addr_any,
1897 &lbsda->u.in6.sin6_addr,
1898 sizeof(in6addr_any)) != 0) {
1904 tevent_req_error(req, EINVAL);
1908 state->fd = socket(lbsda->u.sa.sa_family, SOCK_STREAM, 0);
1909 if (state->fd == -1) {
1910 tevent_req_error(req, errno);
1914 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
1915 if (state->fd == -1) {
1916 tevent_req_error(req, errno);
1923 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
1924 (const void *)&val, sizeof(val));
1926 tevent_req_error(req, errno);
1932 ret = bind(state->fd, &lbsda->u.sa, sizeof(lbsda->u.ss));
1934 tevent_req_error(req, errno);
1939 ret = connect(state->fd, &rbsda->u.sa, sa_len);
1940 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1945 if (tevent_req_error(req, err)) {
1949 tevent_req_done(req);
1953 state->fde = tevent_add_fd(ev, state,
1955 TEVENT_FD_READ | TEVENT_FD_WRITE,
1956 tstream_bsd_connect_fde_handler,
1958 if (tevent_req_nomem(state->fde, req)) {
1965 tevent_req_post(req, ev);
1969 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1970 struct tevent_fd *fde,
1974 struct tevent_req *req = talloc_get_type_abort(private_data,
1976 struct tstream_bsd_connect_state *state = tevent_req_data(req,
1977 struct tstream_bsd_connect_state);
1980 socklen_t len = sizeof(error);
1984 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
1991 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1996 if (tevent_req_error(req, err)) {
2000 tevent_req_done(req);
2003 static int tstream_bsd_connect_recv(struct tevent_req *req,
2005 TALLOC_CTX *mem_ctx,
2006 struct tstream_context **stream,
2007 const char *location)
2009 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2010 struct tstream_bsd_connect_state);
2013 ret = tsocket_simple_int_recv(req, perrno);
2015 ret = _tstream_bsd_existing_socket(mem_ctx,
2023 TALLOC_FREE(state->fde);
2028 tevent_req_received(req);
2032 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2033 struct tevent_context *ev,
2034 const struct tsocket_address *local,
2035 const struct tsocket_address *remote)
2037 struct tsocket_address_bsd *lbsda =
2038 talloc_get_type_abort(local->private_data,
2039 struct tsocket_address_bsd);
2040 struct tevent_req *req;
2043 switch (lbsda->u.sa.sa_family) {
2055 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2060 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2062 TALLOC_CTX *mem_ctx,
2063 struct tstream_context **stream,
2064 const char *location)
2066 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2069 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2070 struct tevent_context *ev,
2071 const struct tsocket_address *local,
2072 const struct tsocket_address *remote)
2074 struct tsocket_address_bsd *lbsda =
2075 talloc_get_type_abort(local->private_data,
2076 struct tsocket_address_bsd);
2077 struct tevent_req *req;
2080 switch (lbsda->u.sa.sa_family) {
2088 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2093 int _tstream_unix_connect_recv(struct tevent_req *req,
2095 TALLOC_CTX *mem_ctx,
2096 struct tstream_context **stream,
2097 const char *location)
2099 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2102 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2103 struct tstream_context **_stream1,
2104 TALLOC_CTX *mem_ctx2,
2105 struct tstream_context **_stream2,
2106 const char *location)
2112 struct tstream_context *stream1 = NULL;
2113 struct tstream_context *stream2 = NULL;
2115 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2122 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2124 int sys_errno = errno;
2130 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2132 int sys_errno = errno;
2138 ret = _tstream_bsd_existing_socket(mem_ctx1,
2143 int sys_errno = errno;
2150 ret = _tstream_bsd_existing_socket(mem_ctx2,
2155 int sys_errno = errno;
2156 talloc_free(stream1);
2162 *_stream1 = stream1;
2163 *_stream2 = stream2;