2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan Metzmacher 2009
6 ** NOTE! The following LGPL license applies to the tsocket
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 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 if (sa_socklen < sizeof(sa->sa_family)) {
218 switch (sa->sa_family) {
220 if (sa_socklen > sizeof(struct sockaddr_un)) {
221 sa_socklen = sizeof(struct sockaddr_un);
225 if (sa_socklen < sizeof(struct sockaddr_in)) {
229 sa_socklen = sizeof(struct sockaddr_in);
233 if (sa_socklen < sizeof(struct sockaddr_in6)) {
237 sa_socklen = sizeof(struct sockaddr_in6);
241 errno = EAFNOSUPPORT;
245 if (sa_socklen > sizeof(struct sockaddr_storage)) {
250 addr = tsocket_address_create(mem_ctx,
251 &tsocket_address_bsd_ops,
253 struct tsocket_address_bsd,
262 memcpy(&bsda->u.ss, sa, sa_socklen);
268 ssize_t tsocket_address_bsd_sockaddr(const struct tsocket_address *addr,
272 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
273 struct tsocket_address_bsd);
281 switch (bsda->u.sa.sa_family) {
283 rlen = sizeof(struct sockaddr_un);
286 rlen = sizeof(struct sockaddr_in);
290 rlen = sizeof(struct sockaddr_in6);
294 errno = EAFNOSUPPORT;
298 if (sa_socklen < rlen) {
303 if (sa_socklen > sizeof(struct sockaddr_storage)) {
304 memset(sa, 0, sa_socklen);
305 sa_socklen = sizeof(struct sockaddr_storage);
308 memcpy(sa, &bsda->u.ss, sa_socklen);
312 int _tsocket_address_inet_from_strings(TALLOC_CTX *mem_ctx,
316 struct tsocket_address **_addr,
317 const char *location)
319 struct addrinfo hints;
320 struct addrinfo *result = NULL;
326 * we use SOCKET_STREAM here to get just one result
327 * back from getaddrinfo().
329 hints.ai_socktype = SOCK_STREAM;
330 hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
332 if (strcasecmp(fam, "ip") == 0) {
333 hints.ai_family = AF_UNSPEC;
341 } else if (strcasecmp(fam, "ipv4") == 0) {
342 hints.ai_family = AF_INET;
347 } else if (strcasecmp(fam, "ipv6") == 0) {
348 hints.ai_family = AF_INET6;
354 errno = EAFNOSUPPORT;
358 snprintf(port_str, sizeof(port_str) - 1, "%u", port);
360 ret = getaddrinfo(addr, port_str, &hints, &result);
371 if (result->ai_socktype != SOCK_STREAM) {
377 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
385 freeaddrinfo(result);
390 char *tsocket_address_inet_addr_string(const struct tsocket_address *addr,
393 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
394 struct tsocket_address_bsd);
395 char addr_str[INET6_ADDRSTRLEN+1];
403 switch (bsda->u.sa.sa_family) {
405 str = inet_ntop(bsda->u.in.sin_family,
406 &bsda->u.in.sin_addr,
407 addr_str, sizeof(addr_str));
411 str = inet_ntop(bsda->u.in6.sin6_family,
412 &bsda->u.in6.sin6_addr,
413 addr_str, sizeof(addr_str));
425 return talloc_strdup(mem_ctx, str);
428 uint16_t tsocket_address_inet_port(const struct tsocket_address *addr)
430 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
431 struct tsocket_address_bsd);
439 switch (bsda->u.sa.sa_family) {
441 port = ntohs(bsda->u.in.sin_port);
445 port = ntohs(bsda->u.in6.sin6_port);
456 int tsocket_address_inet_set_port(struct tsocket_address *addr,
459 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
460 struct tsocket_address_bsd);
467 switch (bsda->u.sa.sa_family) {
469 bsda->u.in.sin_port = htons(port);
473 bsda->u.in6.sin6_port = htons(port);
484 int _tsocket_address_unix_from_path(TALLOC_CTX *mem_ctx,
486 struct tsocket_address **_addr,
487 const char *location)
489 struct sockaddr_un un;
497 if (strlen(path) > sizeof(un.sun_path)-1) {
498 errno = ENAMETOOLONG;
503 un.sun_family = AF_UNIX;
504 strncpy(un.sun_path, path, sizeof(un.sun_path)-1);
506 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
507 (struct sockaddr *)p,
515 char *tsocket_address_unix_path(const struct tsocket_address *addr,
518 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
519 struct tsocket_address_bsd);
527 switch (bsda->u.sa.sa_family) {
529 str = bsda->u.un.sun_path;
536 return talloc_strdup(mem_ctx, str);
539 static char *tsocket_address_bsd_string(const struct tsocket_address *addr,
542 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
543 struct tsocket_address_bsd);
546 const char *prefix = NULL;
549 switch (bsda->u.sa.sa_family) {
551 return talloc_asprintf(mem_ctx, "unix:%s",
552 bsda->u.un.sun_path);
566 addr_str = tsocket_address_inet_addr_string(addr, mem_ctx);
571 port = tsocket_address_inet_port(addr);
573 str = talloc_asprintf(mem_ctx, "%s:%s:%u",
574 prefix, addr_str, port);
575 talloc_free(addr_str);
580 static struct tsocket_address *tsocket_address_bsd_copy(const struct tsocket_address *addr,
582 const char *location)
584 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
585 struct tsocket_address_bsd);
586 struct tsocket_address *copy;
589 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
601 static const struct tsocket_address_ops tsocket_address_bsd_ops = {
603 .string = tsocket_address_bsd_string,
604 .copy = tsocket_address_bsd_copy,
611 struct tevent_fd *fde;
613 void *readable_private;
614 void (*readable_handler)(void *private_data);
615 void *writeable_private;
616 void (*writeable_handler)(void *private_data);
619 static void tdgram_bsd_fde_handler(struct tevent_context *ev,
620 struct tevent_fd *fde,
624 struct tdgram_bsd *bsds = talloc_get_type_abort(private_data,
627 if (flags & TEVENT_FD_WRITE) {
628 bsds->writeable_handler(bsds->writeable_private);
631 if (flags & TEVENT_FD_READ) {
632 if (!bsds->readable_handler) {
633 TEVENT_FD_NOT_READABLE(bsds->fde);
636 bsds->readable_handler(bsds->readable_private);
641 static int tdgram_bsd_set_readable_handler(struct tdgram_bsd *bsds,
642 struct tevent_context *ev,
643 void (*handler)(void *private_data),
651 if (!bsds->readable_handler) {
654 bsds->readable_handler = NULL;
655 bsds->readable_private = NULL;
660 /* read and write must use the same tevent_context */
661 if (bsds->event_ptr != ev) {
662 if (bsds->readable_handler || bsds->writeable_handler) {
666 bsds->event_ptr = NULL;
667 TALLOC_FREE(bsds->fde);
670 if (tevent_fd_get_flags(bsds->fde) == 0) {
671 TALLOC_FREE(bsds->fde);
673 bsds->fde = tevent_add_fd(ev, bsds,
674 bsds->fd, TEVENT_FD_READ,
675 tdgram_bsd_fde_handler,
682 /* cache the event context we're running on */
683 bsds->event_ptr = ev;
684 } else if (!bsds->readable_handler) {
685 TEVENT_FD_READABLE(bsds->fde);
688 bsds->readable_handler = handler;
689 bsds->readable_private = private_data;
694 static int tdgram_bsd_set_writeable_handler(struct tdgram_bsd *bsds,
695 struct tevent_context *ev,
696 void (*handler)(void *private_data),
704 if (!bsds->writeable_handler) {
707 bsds->writeable_handler = NULL;
708 bsds->writeable_private = NULL;
709 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
714 /* read and write must use the same tevent_context */
715 if (bsds->event_ptr != ev) {
716 if (bsds->readable_handler || bsds->writeable_handler) {
720 bsds->event_ptr = NULL;
721 TALLOC_FREE(bsds->fde);
724 if (tevent_fd_get_flags(bsds->fde) == 0) {
725 TALLOC_FREE(bsds->fde);
727 bsds->fde = tevent_add_fd(ev, bsds,
728 bsds->fd, TEVENT_FD_WRITE,
729 tdgram_bsd_fde_handler,
736 /* cache the event context we're running on */
737 bsds->event_ptr = ev;
738 } else if (!bsds->writeable_handler) {
739 TEVENT_FD_WRITEABLE(bsds->fde);
742 bsds->writeable_handler = handler;
743 bsds->writeable_private = private_data;
748 struct tdgram_bsd_recvfrom_state {
749 struct tdgram_context *dgram;
753 struct tsocket_address *src;
756 static int tdgram_bsd_recvfrom_destructor(struct tdgram_bsd_recvfrom_state *state)
758 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
761 tdgram_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
766 static void tdgram_bsd_recvfrom_handler(void *private_data);
768 static struct tevent_req *tdgram_bsd_recvfrom_send(TALLOC_CTX *mem_ctx,
769 struct tevent_context *ev,
770 struct tdgram_context *dgram)
772 struct tevent_req *req;
773 struct tdgram_bsd_recvfrom_state *state;
774 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
777 req = tevent_req_create(mem_ctx, &state,
778 struct tdgram_bsd_recvfrom_state);
783 state->dgram = dgram;
788 talloc_set_destructor(state, tdgram_bsd_recvfrom_destructor);
790 if (bsds->fd == -1) {
791 tevent_req_error(req, ENOTCONN);
796 * this is a fast path, not waiting for the
797 * socket to become explicit readable gains
798 * about 10%-20% performance in benchmark tests.
800 tdgram_bsd_recvfrom_handler(req);
801 if (!tevent_req_is_in_progress(req)) {
805 ret = tdgram_bsd_set_readable_handler(bsds, ev,
806 tdgram_bsd_recvfrom_handler,
809 tevent_req_error(req, errno);
816 tevent_req_post(req, ev);
820 static void tdgram_bsd_recvfrom_handler(void *private_data)
822 struct tevent_req *req = talloc_get_type_abort(private_data,
824 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
825 struct tdgram_bsd_recvfrom_state);
826 struct tdgram_context *dgram = state->dgram;
827 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
828 struct tsocket_address_bsd *bsda;
830 struct sockaddr *sa = NULL;
831 socklen_t sa_socklen = 0;
835 ret = tsocket_bsd_pending(bsds->fd);
840 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
845 if (tevent_req_error(req, err)) {
849 state->buf = talloc_array(state, uint8_t, ret);
850 if (tevent_req_nomem(state->buf, req)) {
855 state->src = tsocket_address_create(state,
856 &tsocket_address_bsd_ops,
858 struct tsocket_address_bsd,
859 __location__ "bsd_recvfrom");
860 if (tevent_req_nomem(state->src, req)) {
867 sa_socklen = sizeof(bsda->u.ss);
869 * for unix sockets we can't use the size of sockaddr_storage
870 * we would get EINVAL
872 if (bsda->u.sa.sa_family == AF_UNIX) {
873 sa_socklen = sizeof(bsda->u.un);
876 ret = recvfrom(bsds->fd, state->buf, state->len, 0, sa, &sa_socklen);
877 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
882 if (tevent_req_error(req, err)) {
887 * Some systems (FreeBSD, see bug #7115) return too much
888 * bytes in tsocket_bsd_pending()/ioctl(fd, FIONREAD, ...),
889 * the return value includes some IP/UDP header bytes,
890 * while recvfrom() just returns the payload.
892 state->buf = talloc_realloc(state, state->buf, uint8_t, ret);
893 if (tevent_req_nomem(state->buf, req)) {
898 tevent_req_done(req);
901 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
905 struct tsocket_address **src)
907 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
908 struct tdgram_bsd_recvfrom_state);
911 ret = tsocket_simple_int_recv(req, perrno);
913 *buf = talloc_move(mem_ctx, &state->buf);
916 *src = talloc_move(mem_ctx, &state->src);
920 tevent_req_received(req);
924 struct tdgram_bsd_sendto_state {
925 struct tdgram_context *dgram;
929 const struct tsocket_address *dst;
934 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
936 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
939 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
944 static void tdgram_bsd_sendto_handler(void *private_data);
946 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
947 struct tevent_context *ev,
948 struct tdgram_context *dgram,
951 const struct tsocket_address *dst)
953 struct tevent_req *req;
954 struct tdgram_bsd_sendto_state *state;
955 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
958 req = tevent_req_create(mem_ctx, &state,
959 struct tdgram_bsd_sendto_state);
964 state->dgram = dgram;
970 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
972 if (bsds->fd == -1) {
973 tevent_req_error(req, ENOTCONN);
978 * this is a fast path, not waiting for the
979 * socket to become explicit writeable gains
980 * about 10%-20% performance in benchmark tests.
982 tdgram_bsd_sendto_handler(req);
983 if (!tevent_req_is_in_progress(req)) {
987 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
988 tdgram_bsd_sendto_handler,
991 tevent_req_error(req, errno);
998 tevent_req_post(req, ev);
1002 static void tdgram_bsd_sendto_handler(void *private_data)
1004 struct tevent_req *req = talloc_get_type_abort(private_data,
1006 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1007 struct tdgram_bsd_sendto_state);
1008 struct tdgram_context *dgram = state->dgram;
1009 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1010 struct sockaddr *sa = NULL;
1011 socklen_t sa_socklen = 0;
1017 struct tsocket_address_bsd *bsda =
1018 talloc_get_type(state->dst->private_data,
1019 struct tsocket_address_bsd);
1022 sa_socklen = sizeof(bsda->u.ss);
1024 * for unix sockets we can't use the size of sockaddr_storage
1025 * we would get EINVAL
1027 if (bsda->u.sa.sa_family == AF_UNIX) {
1028 sa_socklen = sizeof(bsda->u.un);
1032 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_socklen);
1033 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1038 if (tevent_req_error(req, err)) {
1044 tevent_req_done(req);
1047 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
1049 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1050 struct tdgram_bsd_sendto_state);
1053 ret = tsocket_simple_int_recv(req, perrno);
1058 tevent_req_received(req);
1062 struct tdgram_bsd_disconnect_state {
1066 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1067 struct tevent_context *ev,
1068 struct tdgram_context *dgram)
1070 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1071 struct tevent_req *req;
1072 struct tdgram_bsd_disconnect_state *state;
1077 req = tevent_req_create(mem_ctx, &state,
1078 struct tdgram_bsd_disconnect_state);
1083 if (bsds->fd == -1) {
1084 tevent_req_error(req, ENOTCONN);
1088 ret = close(bsds->fd);
1090 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1091 if (tevent_req_error(req, err)) {
1095 tevent_req_done(req);
1097 tevent_req_post(req, ev);
1101 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1106 ret = tsocket_simple_int_recv(req, perrno);
1108 tevent_req_received(req);
1112 static const struct tdgram_context_ops tdgram_bsd_ops = {
1115 .recvfrom_send = tdgram_bsd_recvfrom_send,
1116 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1118 .sendto_send = tdgram_bsd_sendto_send,
1119 .sendto_recv = tdgram_bsd_sendto_recv,
1121 .disconnect_send = tdgram_bsd_disconnect_send,
1122 .disconnect_recv = tdgram_bsd_disconnect_recv,
1125 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1127 TALLOC_FREE(bsds->fde);
1128 if (bsds->fd != -1) {
1135 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1136 const struct tsocket_address *remote,
1138 TALLOC_CTX *mem_ctx,
1139 struct tdgram_context **_dgram,
1140 const char *location)
1142 struct tsocket_address_bsd *lbsda =
1143 talloc_get_type_abort(local->private_data,
1144 struct tsocket_address_bsd);
1145 struct tsocket_address_bsd *rbsda = NULL;
1146 struct tdgram_context *dgram;
1147 struct tdgram_bsd *bsds;
1150 bool do_bind = false;
1151 bool do_reuseaddr = false;
1152 bool do_ipv6only = false;
1153 bool is_inet = false;
1154 int sa_fam = lbsda->u.sa.sa_family;
1155 socklen_t sa_socklen = sizeof(lbsda->u.ss);
1158 rbsda = talloc_get_type_abort(remote->private_data,
1159 struct tsocket_address_bsd);
1162 switch (lbsda->u.sa.sa_family) {
1168 if (lbsda->u.un.sun_path[0] != 0) {
1169 do_reuseaddr = true;
1173 * for unix sockets we can't use the size of sockaddr_storage
1174 * we would get EINVAL
1176 sa_socklen = sizeof(lbsda->u.un);
1179 if (lbsda->u.in.sin_port != 0) {
1180 do_reuseaddr = true;
1183 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
1187 sa_socklen = sizeof(rbsda->u.in);
1191 if (lbsda->u.in6.sin6_port != 0) {
1192 do_reuseaddr = true;
1195 if (memcmp(&in6addr_any,
1196 &lbsda->u.in6.sin6_addr,
1197 sizeof(in6addr_any)) != 0) {
1201 sa_socklen = sizeof(rbsda->u.in6);
1210 if (!do_bind && is_inet && rbsda) {
1211 sa_fam = rbsda->u.sa.sa_family;
1214 sa_socklen = sizeof(rbsda->u.in);
1215 do_ipv6only = false;
1219 sa_socklen = sizeof(rbsda->u.in6);
1226 fd = socket(sa_fam, SOCK_DGRAM, 0);
1231 fd = tsocket_bsd_common_prepare_fd(fd, true);
1236 dgram = tdgram_context_create(mem_ctx,
1242 int saved_errno = errno;
1244 errno = saved_errno;
1249 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1255 ret = setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY,
1256 (const void *)&val, sizeof(val));
1258 int saved_errno = errno;
1260 errno = saved_errno;
1269 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1270 (const void *)&val, sizeof(val));
1272 int saved_errno = errno;
1274 errno = saved_errno;
1282 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1283 (const void *)&val, sizeof(val));
1285 int saved_errno = errno;
1287 errno = saved_errno;
1293 ret = bind(fd, &lbsda->u.sa, sa_socklen);
1295 int saved_errno = errno;
1297 errno = saved_errno;
1303 if (rbsda->u.sa.sa_family != sa_fam) {
1309 ret = connect(fd, &rbsda->u.sa, sa_socklen);
1311 int saved_errno = errno;
1313 errno = saved_errno;
1322 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
1323 const struct tsocket_address *remote,
1324 TALLOC_CTX *mem_ctx,
1325 struct tdgram_context **dgram,
1326 const char *location)
1328 struct tsocket_address_bsd *lbsda =
1329 talloc_get_type_abort(local->private_data,
1330 struct tsocket_address_bsd);
1333 switch (lbsda->u.sa.sa_family) {
1345 ret = tdgram_bsd_dgram_socket(local, remote, false,
1346 mem_ctx, dgram, location);
1351 int _tdgram_unix_socket(const struct tsocket_address *local,
1352 const struct tsocket_address *remote,
1353 TALLOC_CTX *mem_ctx,
1354 struct tdgram_context **dgram,
1355 const char *location)
1357 struct tsocket_address_bsd *lbsda =
1358 talloc_get_type_abort(local->private_data,
1359 struct tsocket_address_bsd);
1362 switch (lbsda->u.sa.sa_family) {
1370 ret = tdgram_bsd_dgram_socket(local, remote, false,
1371 mem_ctx, dgram, location);
1376 struct tstream_bsd {
1380 struct tevent_fd *fde;
1382 void *readable_private;
1383 void (*readable_handler)(void *private_data);
1384 void *writeable_private;
1385 void (*writeable_handler)(void *private_data);
1388 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1389 struct tevent_fd *fde,
1393 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1394 struct tstream_bsd);
1396 if (flags & TEVENT_FD_WRITE) {
1397 bsds->writeable_handler(bsds->writeable_private);
1400 if (flags & TEVENT_FD_READ) {
1401 if (!bsds->readable_handler) {
1402 if (bsds->writeable_handler) {
1403 bsds->writeable_handler(bsds->writeable_private);
1406 TEVENT_FD_NOT_READABLE(bsds->fde);
1409 bsds->readable_handler(bsds->readable_private);
1414 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1415 struct tevent_context *ev,
1416 void (*handler)(void *private_data),
1424 if (!bsds->readable_handler) {
1427 bsds->readable_handler = NULL;
1428 bsds->readable_private = NULL;
1433 /* read and write must use the same tevent_context */
1434 if (bsds->event_ptr != ev) {
1435 if (bsds->readable_handler || bsds->writeable_handler) {
1439 bsds->event_ptr = NULL;
1440 TALLOC_FREE(bsds->fde);
1443 if (tevent_fd_get_flags(bsds->fde) == 0) {
1444 TALLOC_FREE(bsds->fde);
1446 bsds->fde = tevent_add_fd(ev, bsds,
1447 bsds->fd, TEVENT_FD_READ,
1448 tstream_bsd_fde_handler,
1455 /* cache the event context we're running on */
1456 bsds->event_ptr = ev;
1457 } else if (!bsds->readable_handler) {
1458 TEVENT_FD_READABLE(bsds->fde);
1461 bsds->readable_handler = handler;
1462 bsds->readable_private = private_data;
1467 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1468 struct tevent_context *ev,
1469 void (*handler)(void *private_data),
1477 if (!bsds->writeable_handler) {
1480 bsds->writeable_handler = NULL;
1481 bsds->writeable_private = NULL;
1482 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
1487 /* read and write must use the same tevent_context */
1488 if (bsds->event_ptr != ev) {
1489 if (bsds->readable_handler || bsds->writeable_handler) {
1493 bsds->event_ptr = NULL;
1494 TALLOC_FREE(bsds->fde);
1497 if (tevent_fd_get_flags(bsds->fde) == 0) {
1498 TALLOC_FREE(bsds->fde);
1500 bsds->fde = tevent_add_fd(ev, bsds,
1502 TEVENT_FD_READ | TEVENT_FD_WRITE,
1503 tstream_bsd_fde_handler,
1510 /* cache the event context we're running on */
1511 bsds->event_ptr = ev;
1512 } else if (!bsds->writeable_handler) {
1513 uint16_t flags = tevent_fd_get_flags(bsds->fde);
1514 flags |= TEVENT_FD_READ | TEVENT_FD_WRITE;
1515 tevent_fd_set_flags(bsds->fde, flags);
1518 bsds->writeable_handler = handler;
1519 bsds->writeable_private = private_data;
1524 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1526 struct tstream_bsd *bsds = tstream_context_data(stream,
1527 struct tstream_bsd);
1530 if (bsds->fd == -1) {
1535 ret = tsocket_bsd_pending(bsds->fd);
1540 struct tstream_bsd_readv_state {
1541 struct tstream_context *stream;
1543 struct iovec *vector;
1549 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1551 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1552 struct tstream_bsd);
1554 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1559 static void tstream_bsd_readv_handler(void *private_data);
1561 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1562 struct tevent_context *ev,
1563 struct tstream_context *stream,
1564 struct iovec *vector,
1567 struct tevent_req *req;
1568 struct tstream_bsd_readv_state *state;
1569 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1572 req = tevent_req_create(mem_ctx, &state,
1573 struct tstream_bsd_readv_state);
1578 state->stream = stream;
1579 /* we make a copy of the vector so that we can modify it */
1580 state->vector = talloc_array(state, struct iovec, count);
1581 if (tevent_req_nomem(state->vector, req)) {
1584 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1585 state->count = count;
1588 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1590 if (bsds->fd == -1) {
1591 tevent_req_error(req, ENOTCONN);
1596 * this is a fast path, not waiting for the
1597 * socket to become explicit readable gains
1598 * about 10%-20% performance in benchmark tests.
1600 tstream_bsd_readv_handler(req);
1601 if (!tevent_req_is_in_progress(req)) {
1605 ret = tstream_bsd_set_readable_handler(bsds, ev,
1606 tstream_bsd_readv_handler,
1609 tevent_req_error(req, errno);
1616 tevent_req_post(req, ev);
1620 static void tstream_bsd_readv_handler(void *private_data)
1622 struct tevent_req *req = talloc_get_type_abort(private_data,
1624 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1625 struct tstream_bsd_readv_state);
1626 struct tstream_context *stream = state->stream;
1627 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1632 ret = readv(bsds->fd, state->vector, state->count);
1634 /* propagate end of file */
1635 tevent_req_error(req, EPIPE);
1638 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1643 if (tevent_req_error(req, err)) {
1650 if (ret < state->vector[0].iov_len) {
1652 base = (uint8_t *)state->vector[0].iov_base;
1654 state->vector[0].iov_base = base;
1655 state->vector[0].iov_len -= ret;
1658 ret -= state->vector[0].iov_len;
1664 * there're maybe some empty vectors at the end
1665 * which we need to skip, otherwise we would get
1666 * ret == 0 from the readv() call and return EPIPE
1668 while (state->count > 0) {
1669 if (state->vector[0].iov_len > 0) {
1676 if (state->count > 0) {
1677 /* we have more to read */
1681 tevent_req_done(req);
1684 static int tstream_bsd_readv_recv(struct tevent_req *req,
1687 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1688 struct tstream_bsd_readv_state);
1691 ret = tsocket_simple_int_recv(req, perrno);
1696 tevent_req_received(req);
1700 struct tstream_bsd_writev_state {
1701 struct tstream_context *stream;
1703 struct iovec *vector;
1709 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1711 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1712 struct tstream_bsd);
1714 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1719 static void tstream_bsd_writev_handler(void *private_data);
1721 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1722 struct tevent_context *ev,
1723 struct tstream_context *stream,
1724 const struct iovec *vector,
1727 struct tevent_req *req;
1728 struct tstream_bsd_writev_state *state;
1729 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1732 req = tevent_req_create(mem_ctx, &state,
1733 struct tstream_bsd_writev_state);
1738 state->stream = stream;
1739 /* we make a copy of the vector so that we can modify it */
1740 state->vector = talloc_array(state, struct iovec, count);
1741 if (tevent_req_nomem(state->vector, req)) {
1744 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1745 state->count = count;
1748 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1750 if (bsds->fd == -1) {
1751 tevent_req_error(req, ENOTCONN);
1756 * this is a fast path, not waiting for the
1757 * socket to become explicit writeable gains
1758 * about 10%-20% performance in benchmark tests.
1760 tstream_bsd_writev_handler(req);
1761 if (!tevent_req_is_in_progress(req)) {
1765 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1766 tstream_bsd_writev_handler,
1769 tevent_req_error(req, errno);
1776 tevent_req_post(req, ev);
1780 static void tstream_bsd_writev_handler(void *private_data)
1782 struct tevent_req *req = talloc_get_type_abort(private_data,
1784 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1785 struct tstream_bsd_writev_state);
1786 struct tstream_context *stream = state->stream;
1787 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1792 ret = writev(bsds->fd, state->vector, state->count);
1794 /* propagate end of file */
1795 tevent_req_error(req, EPIPE);
1798 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1803 if (tevent_req_error(req, err)) {
1810 if (ret < state->vector[0].iov_len) {
1812 base = (uint8_t *)state->vector[0].iov_base;
1814 state->vector[0].iov_base = base;
1815 state->vector[0].iov_len -= ret;
1818 ret -= state->vector[0].iov_len;
1824 * there're maybe some empty vectors at the end
1825 * which we need to skip, otherwise we would get
1826 * ret == 0 from the writev() call and return EPIPE
1828 while (state->count > 0) {
1829 if (state->vector[0].iov_len > 0) {
1836 if (state->count > 0) {
1837 /* we have more to read */
1841 tevent_req_done(req);
1844 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1846 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1847 struct tstream_bsd_writev_state);
1850 ret = tsocket_simple_int_recv(req, perrno);
1855 tevent_req_received(req);
1859 struct tstream_bsd_disconnect_state {
1863 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1864 struct tevent_context *ev,
1865 struct tstream_context *stream)
1867 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1868 struct tevent_req *req;
1869 struct tstream_bsd_disconnect_state *state;
1874 req = tevent_req_create(mem_ctx, &state,
1875 struct tstream_bsd_disconnect_state);
1880 if (bsds->fd == -1) {
1881 tevent_req_error(req, ENOTCONN);
1885 ret = close(bsds->fd);
1887 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1888 if (tevent_req_error(req, err)) {
1892 tevent_req_done(req);
1894 tevent_req_post(req, ev);
1898 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1903 ret = tsocket_simple_int_recv(req, perrno);
1905 tevent_req_received(req);
1909 static const struct tstream_context_ops tstream_bsd_ops = {
1912 .pending_bytes = tstream_bsd_pending_bytes,
1914 .readv_send = tstream_bsd_readv_send,
1915 .readv_recv = tstream_bsd_readv_recv,
1917 .writev_send = tstream_bsd_writev_send,
1918 .writev_recv = tstream_bsd_writev_recv,
1920 .disconnect_send = tstream_bsd_disconnect_send,
1921 .disconnect_recv = tstream_bsd_disconnect_recv,
1924 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1926 TALLOC_FREE(bsds->fde);
1927 if (bsds->fd != -1) {
1934 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1936 struct tstream_context **_stream,
1937 const char *location)
1939 struct tstream_context *stream;
1940 struct tstream_bsd *bsds;
1942 stream = tstream_context_create(mem_ctx,
1952 talloc_set_destructor(bsds, tstream_bsd_destructor);
1958 struct tstream_bsd_connect_state {
1960 struct tevent_fd *fde;
1961 struct tstream_conext *stream;
1964 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1966 TALLOC_FREE(state->fde);
1967 if (state->fd != -1) {
1975 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1976 struct tevent_fd *fde,
1978 void *private_data);
1980 static struct tevent_req * tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
1981 struct tevent_context *ev,
1983 const struct tsocket_address *local,
1984 const struct tsocket_address *remote)
1986 struct tevent_req *req;
1987 struct tstream_bsd_connect_state *state;
1988 struct tsocket_address_bsd *lbsda =
1989 talloc_get_type_abort(local->private_data,
1990 struct tsocket_address_bsd);
1991 struct tsocket_address_bsd *rbsda =
1992 talloc_get_type_abort(remote->private_data,
1993 struct tsocket_address_bsd);
1997 bool do_bind = false;
1998 bool do_reuseaddr = false;
1999 bool do_ipv6only = false;
2000 bool is_inet = false;
2001 int sa_fam = lbsda->u.sa.sa_family;
2002 socklen_t sa_socklen = sizeof(rbsda->u.ss);
2004 req = tevent_req_create(mem_ctx, &state,
2005 struct tstream_bsd_connect_state);
2012 talloc_set_destructor(state, tstream_bsd_connect_destructor);
2014 /* give the wrappers a chance to report an error */
2015 if (sys_errno != 0) {
2016 tevent_req_error(req, sys_errno);
2020 switch (lbsda->u.sa.sa_family) {
2022 if (lbsda->u.un.sun_path[0] != 0) {
2023 do_reuseaddr = true;
2027 * for unix sockets we can't use the size of sockaddr_storage
2028 * we would get EINVAL
2030 sa_socklen = sizeof(rbsda->u.un);
2033 if (lbsda->u.in.sin_port != 0) {
2034 do_reuseaddr = true;
2037 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
2041 sa_socklen = sizeof(rbsda->u.in);
2045 if (lbsda->u.in6.sin6_port != 0) {
2046 do_reuseaddr = true;
2049 if (memcmp(&in6addr_any,
2050 &lbsda->u.in6.sin6_addr,
2051 sizeof(in6addr_any)) != 0) {
2055 sa_socklen = sizeof(rbsda->u.in6);
2060 tevent_req_error(req, EINVAL);
2064 if (!do_bind && is_inet) {
2065 sa_fam = rbsda->u.sa.sa_family;
2068 sa_socklen = sizeof(rbsda->u.in);
2069 do_ipv6only = false;
2073 sa_socklen = sizeof(rbsda->u.in6);
2080 state->fd = socket(sa_fam, SOCK_STREAM, 0);
2081 if (state->fd == -1) {
2082 tevent_req_error(req, errno);
2086 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
2087 if (state->fd == -1) {
2088 tevent_req_error(req, errno);
2096 ret = setsockopt(state->fd, IPPROTO_IPV6, IPV6_V6ONLY,
2097 (const void *)&val, sizeof(val));
2099 tevent_req_error(req, errno);
2108 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
2109 (const void *)&val, sizeof(val));
2111 tevent_req_error(req, errno);
2117 ret = bind(state->fd, &lbsda->u.sa, sa_socklen);
2119 tevent_req_error(req, errno);
2124 if (rbsda->u.sa.sa_family != sa_fam) {
2125 tevent_req_error(req, EINVAL);
2129 ret = connect(state->fd, &rbsda->u.sa, sa_socklen);
2130 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2135 if (tevent_req_error(req, err)) {
2139 tevent_req_done(req);
2143 state->fde = tevent_add_fd(ev, state,
2145 TEVENT_FD_READ | TEVENT_FD_WRITE,
2146 tstream_bsd_connect_fde_handler,
2148 if (tevent_req_nomem(state->fde, req)) {
2155 tevent_req_post(req, ev);
2159 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
2160 struct tevent_fd *fde,
2164 struct tevent_req *req = talloc_get_type_abort(private_data,
2166 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2167 struct tstream_bsd_connect_state);
2170 socklen_t len = sizeof(error);
2174 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
2181 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2186 if (tevent_req_error(req, err)) {
2190 tevent_req_done(req);
2193 static int tstream_bsd_connect_recv(struct tevent_req *req,
2195 TALLOC_CTX *mem_ctx,
2196 struct tstream_context **stream,
2197 const char *location)
2199 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2200 struct tstream_bsd_connect_state);
2203 ret = tsocket_simple_int_recv(req, perrno);
2205 ret = _tstream_bsd_existing_socket(mem_ctx,
2213 TALLOC_FREE(state->fde);
2218 tevent_req_received(req);
2222 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2223 struct tevent_context *ev,
2224 const struct tsocket_address *local,
2225 const struct tsocket_address *remote)
2227 struct tsocket_address_bsd *lbsda =
2228 talloc_get_type_abort(local->private_data,
2229 struct tsocket_address_bsd);
2230 struct tevent_req *req;
2233 switch (lbsda->u.sa.sa_family) {
2245 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2250 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2252 TALLOC_CTX *mem_ctx,
2253 struct tstream_context **stream,
2254 const char *location)
2256 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2259 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2260 struct tevent_context *ev,
2261 const struct tsocket_address *local,
2262 const struct tsocket_address *remote)
2264 struct tsocket_address_bsd *lbsda =
2265 talloc_get_type_abort(local->private_data,
2266 struct tsocket_address_bsd);
2267 struct tevent_req *req;
2270 switch (lbsda->u.sa.sa_family) {
2278 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2283 int _tstream_unix_connect_recv(struct tevent_req *req,
2285 TALLOC_CTX *mem_ctx,
2286 struct tstream_context **stream,
2287 const char *location)
2289 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2292 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2293 struct tstream_context **_stream1,
2294 TALLOC_CTX *mem_ctx2,
2295 struct tstream_context **_stream2,
2296 const char *location)
2302 struct tstream_context *stream1 = NULL;
2303 struct tstream_context *stream2 = NULL;
2305 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2312 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2314 int sys_errno = errno;
2320 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2322 int sys_errno = errno;
2328 ret = _tstream_bsd_existing_socket(mem_ctx1,
2333 int sys_errno = errno;
2340 ret = _tstream_bsd_existing_socket(mem_ctx2,
2345 int sys_errno = errno;
2346 talloc_free(stream1);
2352 *_stream1 = stream1;
2353 *_stream2 = stream2;