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)) {
886 if (ret != state->len) {
887 tevent_req_error(req, EIO);
891 tevent_req_done(req);
894 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
898 struct tsocket_address **src)
900 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
901 struct tdgram_bsd_recvfrom_state);
904 ret = tsocket_simple_int_recv(req, perrno);
906 *buf = talloc_move(mem_ctx, &state->buf);
909 *src = talloc_move(mem_ctx, &state->src);
913 tevent_req_received(req);
917 struct tdgram_bsd_sendto_state {
918 struct tdgram_context *dgram;
922 const struct tsocket_address *dst;
927 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
929 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
932 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
937 static void tdgram_bsd_sendto_handler(void *private_data);
939 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
940 struct tevent_context *ev,
941 struct tdgram_context *dgram,
944 const struct tsocket_address *dst)
946 struct tevent_req *req;
947 struct tdgram_bsd_sendto_state *state;
948 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
951 req = tevent_req_create(mem_ctx, &state,
952 struct tdgram_bsd_sendto_state);
957 state->dgram = dgram;
963 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
965 if (bsds->fd == -1) {
966 tevent_req_error(req, ENOTCONN);
971 * this is a fast path, not waiting for the
972 * socket to become explicit writeable gains
973 * about 10%-20% performance in benchmark tests.
975 tdgram_bsd_sendto_handler(req);
976 if (!tevent_req_is_in_progress(req)) {
980 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
981 tdgram_bsd_sendto_handler,
984 tevent_req_error(req, errno);
991 tevent_req_post(req, ev);
995 static void tdgram_bsd_sendto_handler(void *private_data)
997 struct tevent_req *req = talloc_get_type_abort(private_data,
999 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1000 struct tdgram_bsd_sendto_state);
1001 struct tdgram_context *dgram = state->dgram;
1002 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1003 struct sockaddr *sa = NULL;
1004 socklen_t sa_socklen = 0;
1010 struct tsocket_address_bsd *bsda =
1011 talloc_get_type(state->dst->private_data,
1012 struct tsocket_address_bsd);
1015 sa_socklen = sizeof(bsda->u.ss);
1017 * for unix sockets we can't use the size of sockaddr_storage
1018 * we would get EINVAL
1020 if (bsda->u.sa.sa_family == AF_UNIX) {
1021 sa_socklen = sizeof(bsda->u.un);
1025 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_socklen);
1026 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1031 if (tevent_req_error(req, err)) {
1037 tevent_req_done(req);
1040 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
1042 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1043 struct tdgram_bsd_sendto_state);
1046 ret = tsocket_simple_int_recv(req, perrno);
1051 tevent_req_received(req);
1055 struct tdgram_bsd_disconnect_state {
1059 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1060 struct tevent_context *ev,
1061 struct tdgram_context *dgram)
1063 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1064 struct tevent_req *req;
1065 struct tdgram_bsd_disconnect_state *state;
1070 req = tevent_req_create(mem_ctx, &state,
1071 struct tdgram_bsd_disconnect_state);
1076 if (bsds->fd == -1) {
1077 tevent_req_error(req, ENOTCONN);
1081 ret = close(bsds->fd);
1083 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1084 if (tevent_req_error(req, err)) {
1088 tevent_req_done(req);
1090 tevent_req_post(req, ev);
1094 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1099 ret = tsocket_simple_int_recv(req, perrno);
1101 tevent_req_received(req);
1105 static const struct tdgram_context_ops tdgram_bsd_ops = {
1108 .recvfrom_send = tdgram_bsd_recvfrom_send,
1109 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1111 .sendto_send = tdgram_bsd_sendto_send,
1112 .sendto_recv = tdgram_bsd_sendto_recv,
1114 .disconnect_send = tdgram_bsd_disconnect_send,
1115 .disconnect_recv = tdgram_bsd_disconnect_recv,
1118 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1120 TALLOC_FREE(bsds->fde);
1121 if (bsds->fd != -1) {
1128 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1129 const struct tsocket_address *remote,
1131 TALLOC_CTX *mem_ctx,
1132 struct tdgram_context **_dgram,
1133 const char *location)
1135 struct tsocket_address_bsd *lbsda =
1136 talloc_get_type_abort(local->private_data,
1137 struct tsocket_address_bsd);
1138 struct tsocket_address_bsd *rbsda = NULL;
1139 struct tdgram_context *dgram;
1140 struct tdgram_bsd *bsds;
1143 bool do_bind = false;
1144 bool do_reuseaddr = false;
1145 bool do_ipv6only = false;
1146 bool is_inet = false;
1147 int sa_fam = lbsda->u.sa.sa_family;
1148 socklen_t sa_socklen = sizeof(lbsda->u.ss);
1151 rbsda = talloc_get_type_abort(remote->private_data,
1152 struct tsocket_address_bsd);
1155 switch (lbsda->u.sa.sa_family) {
1161 if (lbsda->u.un.sun_path[0] != 0) {
1162 do_reuseaddr = true;
1166 * for unix sockets we can't use the size of sockaddr_storage
1167 * we would get EINVAL
1169 sa_socklen = sizeof(lbsda->u.un);
1172 if (lbsda->u.in.sin_port != 0) {
1173 do_reuseaddr = true;
1176 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
1180 sa_socklen = sizeof(rbsda->u.in);
1184 if (lbsda->u.in6.sin6_port != 0) {
1185 do_reuseaddr = true;
1188 if (memcmp(&in6addr_any,
1189 &lbsda->u.in6.sin6_addr,
1190 sizeof(in6addr_any)) != 0) {
1194 sa_socklen = sizeof(rbsda->u.in6);
1203 if (!do_bind && is_inet && rbsda) {
1204 sa_fam = rbsda->u.sa.sa_family;
1207 sa_socklen = sizeof(rbsda->u.in);
1208 do_ipv6only = false;
1212 sa_socklen = sizeof(rbsda->u.in6);
1219 fd = socket(sa_fam, SOCK_DGRAM, 0);
1224 fd = tsocket_bsd_common_prepare_fd(fd, true);
1229 dgram = tdgram_context_create(mem_ctx,
1235 int saved_errno = errno;
1237 errno = saved_errno;
1242 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1248 ret = setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY,
1249 (const void *)&val, sizeof(val));
1251 int saved_errno = errno;
1253 errno = saved_errno;
1262 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1263 (const void *)&val, sizeof(val));
1265 int saved_errno = errno;
1267 errno = saved_errno;
1275 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1276 (const void *)&val, sizeof(val));
1278 int saved_errno = errno;
1280 errno = saved_errno;
1286 ret = bind(fd, &lbsda->u.sa, sa_socklen);
1288 int saved_errno = errno;
1290 errno = saved_errno;
1296 if (rbsda->u.sa.sa_family != sa_fam) {
1302 ret = connect(fd, &rbsda->u.sa, sa_socklen);
1304 int saved_errno = errno;
1306 errno = saved_errno;
1315 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
1316 const struct tsocket_address *remote,
1317 TALLOC_CTX *mem_ctx,
1318 struct tdgram_context **dgram,
1319 const char *location)
1321 struct tsocket_address_bsd *lbsda =
1322 talloc_get_type_abort(local->private_data,
1323 struct tsocket_address_bsd);
1326 switch (lbsda->u.sa.sa_family) {
1338 ret = tdgram_bsd_dgram_socket(local, remote, false,
1339 mem_ctx, dgram, location);
1344 int _tdgram_unix_socket(const struct tsocket_address *local,
1345 const struct tsocket_address *remote,
1346 TALLOC_CTX *mem_ctx,
1347 struct tdgram_context **dgram,
1348 const char *location)
1350 struct tsocket_address_bsd *lbsda =
1351 talloc_get_type_abort(local->private_data,
1352 struct tsocket_address_bsd);
1355 switch (lbsda->u.sa.sa_family) {
1363 ret = tdgram_bsd_dgram_socket(local, remote, false,
1364 mem_ctx, dgram, location);
1369 struct tstream_bsd {
1373 struct tevent_fd *fde;
1375 void *readable_private;
1376 void (*readable_handler)(void *private_data);
1377 void *writeable_private;
1378 void (*writeable_handler)(void *private_data);
1381 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1382 struct tevent_fd *fde,
1386 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1387 struct tstream_bsd);
1389 if (flags & TEVENT_FD_WRITE) {
1390 bsds->writeable_handler(bsds->writeable_private);
1393 if (flags & TEVENT_FD_READ) {
1394 if (!bsds->readable_handler) {
1395 if (bsds->writeable_handler) {
1396 bsds->writeable_handler(bsds->writeable_private);
1399 TEVENT_FD_NOT_READABLE(bsds->fde);
1402 bsds->readable_handler(bsds->readable_private);
1407 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1408 struct tevent_context *ev,
1409 void (*handler)(void *private_data),
1417 if (!bsds->readable_handler) {
1420 bsds->readable_handler = NULL;
1421 bsds->readable_private = NULL;
1426 /* read and write must use the same tevent_context */
1427 if (bsds->event_ptr != ev) {
1428 if (bsds->readable_handler || bsds->writeable_handler) {
1432 bsds->event_ptr = NULL;
1433 TALLOC_FREE(bsds->fde);
1436 if (tevent_fd_get_flags(bsds->fde) == 0) {
1437 TALLOC_FREE(bsds->fde);
1439 bsds->fde = tevent_add_fd(ev, bsds,
1440 bsds->fd, TEVENT_FD_READ,
1441 tstream_bsd_fde_handler,
1448 /* cache the event context we're running on */
1449 bsds->event_ptr = ev;
1450 } else if (!bsds->readable_handler) {
1451 TEVENT_FD_READABLE(bsds->fde);
1454 bsds->readable_handler = handler;
1455 bsds->readable_private = private_data;
1460 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1461 struct tevent_context *ev,
1462 void (*handler)(void *private_data),
1470 if (!bsds->writeable_handler) {
1473 bsds->writeable_handler = NULL;
1474 bsds->writeable_private = NULL;
1475 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
1480 /* read and write must use the same tevent_context */
1481 if (bsds->event_ptr != ev) {
1482 if (bsds->readable_handler || bsds->writeable_handler) {
1486 bsds->event_ptr = NULL;
1487 TALLOC_FREE(bsds->fde);
1490 if (tevent_fd_get_flags(bsds->fde) == 0) {
1491 TALLOC_FREE(bsds->fde);
1493 bsds->fde = tevent_add_fd(ev, bsds,
1495 TEVENT_FD_READ | TEVENT_FD_WRITE,
1496 tstream_bsd_fde_handler,
1503 /* cache the event context we're running on */
1504 bsds->event_ptr = ev;
1505 } else if (!bsds->writeable_handler) {
1506 uint16_t flags = tevent_fd_get_flags(bsds->fde);
1507 flags |= TEVENT_FD_READ | TEVENT_FD_WRITE;
1508 tevent_fd_set_flags(bsds->fde, flags);
1511 bsds->writeable_handler = handler;
1512 bsds->writeable_private = private_data;
1517 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1519 struct tstream_bsd *bsds = tstream_context_data(stream,
1520 struct tstream_bsd);
1523 if (bsds->fd == -1) {
1528 ret = tsocket_bsd_pending(bsds->fd);
1533 struct tstream_bsd_readv_state {
1534 struct tstream_context *stream;
1536 struct iovec *vector;
1542 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1544 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1545 struct tstream_bsd);
1547 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1552 static void tstream_bsd_readv_handler(void *private_data);
1554 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1555 struct tevent_context *ev,
1556 struct tstream_context *stream,
1557 struct iovec *vector,
1560 struct tevent_req *req;
1561 struct tstream_bsd_readv_state *state;
1562 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1565 req = tevent_req_create(mem_ctx, &state,
1566 struct tstream_bsd_readv_state);
1571 state->stream = stream;
1572 /* we make a copy of the vector so that we can modify it */
1573 state->vector = talloc_array(state, struct iovec, count);
1574 if (tevent_req_nomem(state->vector, req)) {
1577 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1578 state->count = count;
1581 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1583 if (bsds->fd == -1) {
1584 tevent_req_error(req, ENOTCONN);
1589 * this is a fast path, not waiting for the
1590 * socket to become explicit readable gains
1591 * about 10%-20% performance in benchmark tests.
1593 tstream_bsd_readv_handler(req);
1594 if (!tevent_req_is_in_progress(req)) {
1598 ret = tstream_bsd_set_readable_handler(bsds, ev,
1599 tstream_bsd_readv_handler,
1602 tevent_req_error(req, errno);
1609 tevent_req_post(req, ev);
1613 static void tstream_bsd_readv_handler(void *private_data)
1615 struct tevent_req *req = talloc_get_type_abort(private_data,
1617 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1618 struct tstream_bsd_readv_state);
1619 struct tstream_context *stream = state->stream;
1620 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1625 ret = readv(bsds->fd, state->vector, state->count);
1627 /* propagate end of file */
1628 tevent_req_error(req, EPIPE);
1631 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1636 if (tevent_req_error(req, err)) {
1643 if (ret < state->vector[0].iov_len) {
1645 base = (uint8_t *)state->vector[0].iov_base;
1647 state->vector[0].iov_base = base;
1648 state->vector[0].iov_len -= ret;
1651 ret -= state->vector[0].iov_len;
1657 * there're maybe some empty vectors at the end
1658 * which we need to skip, otherwise we would get
1659 * ret == 0 from the readv() call and return EPIPE
1661 while (state->count > 0) {
1662 if (state->vector[0].iov_len > 0) {
1669 if (state->count > 0) {
1670 /* we have more to read */
1674 tevent_req_done(req);
1677 static int tstream_bsd_readv_recv(struct tevent_req *req,
1680 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1681 struct tstream_bsd_readv_state);
1684 ret = tsocket_simple_int_recv(req, perrno);
1689 tevent_req_received(req);
1693 struct tstream_bsd_writev_state {
1694 struct tstream_context *stream;
1696 struct iovec *vector;
1702 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1704 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1705 struct tstream_bsd);
1707 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1712 static void tstream_bsd_writev_handler(void *private_data);
1714 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1715 struct tevent_context *ev,
1716 struct tstream_context *stream,
1717 const struct iovec *vector,
1720 struct tevent_req *req;
1721 struct tstream_bsd_writev_state *state;
1722 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1725 req = tevent_req_create(mem_ctx, &state,
1726 struct tstream_bsd_writev_state);
1731 state->stream = stream;
1732 /* we make a copy of the vector so that we can modify it */
1733 state->vector = talloc_array(state, struct iovec, count);
1734 if (tevent_req_nomem(state->vector, req)) {
1737 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1738 state->count = count;
1741 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1743 if (bsds->fd == -1) {
1744 tevent_req_error(req, ENOTCONN);
1749 * this is a fast path, not waiting for the
1750 * socket to become explicit writeable gains
1751 * about 10%-20% performance in benchmark tests.
1753 tstream_bsd_writev_handler(req);
1754 if (!tevent_req_is_in_progress(req)) {
1758 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1759 tstream_bsd_writev_handler,
1762 tevent_req_error(req, errno);
1769 tevent_req_post(req, ev);
1773 static void tstream_bsd_writev_handler(void *private_data)
1775 struct tevent_req *req = talloc_get_type_abort(private_data,
1777 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1778 struct tstream_bsd_writev_state);
1779 struct tstream_context *stream = state->stream;
1780 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1785 ret = writev(bsds->fd, state->vector, state->count);
1787 /* propagate end of file */
1788 tevent_req_error(req, EPIPE);
1791 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1796 if (tevent_req_error(req, err)) {
1803 if (ret < state->vector[0].iov_len) {
1805 base = (uint8_t *)state->vector[0].iov_base;
1807 state->vector[0].iov_base = base;
1808 state->vector[0].iov_len -= ret;
1811 ret -= state->vector[0].iov_len;
1817 * there're maybe some empty vectors at the end
1818 * which we need to skip, otherwise we would get
1819 * ret == 0 from the writev() call and return EPIPE
1821 while (state->count > 0) {
1822 if (state->vector[0].iov_len > 0) {
1829 if (state->count > 0) {
1830 /* we have more to read */
1834 tevent_req_done(req);
1837 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1839 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1840 struct tstream_bsd_writev_state);
1843 ret = tsocket_simple_int_recv(req, perrno);
1848 tevent_req_received(req);
1852 struct tstream_bsd_disconnect_state {
1856 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1857 struct tevent_context *ev,
1858 struct tstream_context *stream)
1860 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1861 struct tevent_req *req;
1862 struct tstream_bsd_disconnect_state *state;
1867 req = tevent_req_create(mem_ctx, &state,
1868 struct tstream_bsd_disconnect_state);
1873 if (bsds->fd == -1) {
1874 tevent_req_error(req, ENOTCONN);
1878 ret = close(bsds->fd);
1880 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1881 if (tevent_req_error(req, err)) {
1885 tevent_req_done(req);
1887 tevent_req_post(req, ev);
1891 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1896 ret = tsocket_simple_int_recv(req, perrno);
1898 tevent_req_received(req);
1902 static const struct tstream_context_ops tstream_bsd_ops = {
1905 .pending_bytes = tstream_bsd_pending_bytes,
1907 .readv_send = tstream_bsd_readv_send,
1908 .readv_recv = tstream_bsd_readv_recv,
1910 .writev_send = tstream_bsd_writev_send,
1911 .writev_recv = tstream_bsd_writev_recv,
1913 .disconnect_send = tstream_bsd_disconnect_send,
1914 .disconnect_recv = tstream_bsd_disconnect_recv,
1917 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1919 TALLOC_FREE(bsds->fde);
1920 if (bsds->fd != -1) {
1927 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1929 struct tstream_context **_stream,
1930 const char *location)
1932 struct tstream_context *stream;
1933 struct tstream_bsd *bsds;
1935 stream = tstream_context_create(mem_ctx,
1945 talloc_set_destructor(bsds, tstream_bsd_destructor);
1951 struct tstream_bsd_connect_state {
1953 struct tevent_fd *fde;
1954 struct tstream_conext *stream;
1957 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1959 TALLOC_FREE(state->fde);
1960 if (state->fd != -1) {
1968 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1969 struct tevent_fd *fde,
1971 void *private_data);
1973 static struct tevent_req * tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
1974 struct tevent_context *ev,
1976 const struct tsocket_address *local,
1977 const struct tsocket_address *remote)
1979 struct tevent_req *req;
1980 struct tstream_bsd_connect_state *state;
1981 struct tsocket_address_bsd *lbsda =
1982 talloc_get_type_abort(local->private_data,
1983 struct tsocket_address_bsd);
1984 struct tsocket_address_bsd *rbsda =
1985 talloc_get_type_abort(remote->private_data,
1986 struct tsocket_address_bsd);
1990 bool do_bind = false;
1991 bool do_reuseaddr = false;
1992 bool do_ipv6only = false;
1993 bool is_inet = false;
1994 int sa_fam = lbsda->u.sa.sa_family;
1995 socklen_t sa_socklen = sizeof(rbsda->u.ss);
1997 req = tevent_req_create(mem_ctx, &state,
1998 struct tstream_bsd_connect_state);
2005 talloc_set_destructor(state, tstream_bsd_connect_destructor);
2007 /* give the wrappers a chance to report an error */
2008 if (sys_errno != 0) {
2009 tevent_req_error(req, sys_errno);
2013 switch (lbsda->u.sa.sa_family) {
2015 if (lbsda->u.un.sun_path[0] != 0) {
2016 do_reuseaddr = true;
2020 * for unix sockets we can't use the size of sockaddr_storage
2021 * we would get EINVAL
2023 sa_socklen = sizeof(rbsda->u.un);
2026 if (lbsda->u.in.sin_port != 0) {
2027 do_reuseaddr = true;
2030 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
2034 sa_socklen = sizeof(rbsda->u.in);
2038 if (lbsda->u.in6.sin6_port != 0) {
2039 do_reuseaddr = true;
2042 if (memcmp(&in6addr_any,
2043 &lbsda->u.in6.sin6_addr,
2044 sizeof(in6addr_any)) != 0) {
2048 sa_socklen = sizeof(rbsda->u.in6);
2053 tevent_req_error(req, EINVAL);
2057 if (!do_bind && is_inet) {
2058 sa_fam = rbsda->u.sa.sa_family;
2061 sa_socklen = sizeof(rbsda->u.in);
2062 do_ipv6only = false;
2066 sa_socklen = sizeof(rbsda->u.in6);
2073 state->fd = socket(sa_fam, SOCK_STREAM, 0);
2074 if (state->fd == -1) {
2075 tevent_req_error(req, errno);
2079 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
2080 if (state->fd == -1) {
2081 tevent_req_error(req, errno);
2089 ret = setsockopt(state->fd, IPPROTO_IPV6, IPV6_V6ONLY,
2090 (const void *)&val, sizeof(val));
2092 tevent_req_error(req, errno);
2101 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
2102 (const void *)&val, sizeof(val));
2104 tevent_req_error(req, errno);
2110 ret = bind(state->fd, &lbsda->u.sa, sa_socklen);
2112 tevent_req_error(req, errno);
2117 if (rbsda->u.sa.sa_family != sa_fam) {
2118 tevent_req_error(req, EINVAL);
2122 ret = connect(state->fd, &rbsda->u.sa, sa_socklen);
2123 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2128 if (tevent_req_error(req, err)) {
2132 tevent_req_done(req);
2136 state->fde = tevent_add_fd(ev, state,
2138 TEVENT_FD_READ | TEVENT_FD_WRITE,
2139 tstream_bsd_connect_fde_handler,
2141 if (tevent_req_nomem(state->fde, req)) {
2148 tevent_req_post(req, ev);
2152 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
2153 struct tevent_fd *fde,
2157 struct tevent_req *req = talloc_get_type_abort(private_data,
2159 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2160 struct tstream_bsd_connect_state);
2163 socklen_t len = sizeof(error);
2167 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
2174 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2179 if (tevent_req_error(req, err)) {
2183 tevent_req_done(req);
2186 static int tstream_bsd_connect_recv(struct tevent_req *req,
2188 TALLOC_CTX *mem_ctx,
2189 struct tstream_context **stream,
2190 const char *location)
2192 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2193 struct tstream_bsd_connect_state);
2196 ret = tsocket_simple_int_recv(req, perrno);
2198 ret = _tstream_bsd_existing_socket(mem_ctx,
2206 TALLOC_FREE(state->fde);
2211 tevent_req_received(req);
2215 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2216 struct tevent_context *ev,
2217 const struct tsocket_address *local,
2218 const struct tsocket_address *remote)
2220 struct tsocket_address_bsd *lbsda =
2221 talloc_get_type_abort(local->private_data,
2222 struct tsocket_address_bsd);
2223 struct tevent_req *req;
2226 switch (lbsda->u.sa.sa_family) {
2238 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2243 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2245 TALLOC_CTX *mem_ctx,
2246 struct tstream_context **stream,
2247 const char *location)
2249 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2252 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2253 struct tevent_context *ev,
2254 const struct tsocket_address *local,
2255 const struct tsocket_address *remote)
2257 struct tsocket_address_bsd *lbsda =
2258 talloc_get_type_abort(local->private_data,
2259 struct tsocket_address_bsd);
2260 struct tevent_req *req;
2263 switch (lbsda->u.sa.sa_family) {
2271 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2276 int _tstream_unix_connect_recv(struct tevent_req *req,
2278 TALLOC_CTX *mem_ctx,
2279 struct tstream_context **stream,
2280 const char *location)
2282 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2285 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2286 struct tstream_context **_stream1,
2287 TALLOC_CTX *mem_ctx2,
2288 struct tstream_context **_stream2,
2289 const char *location)
2295 struct tstream_context *stream1 = NULL;
2296 struct tstream_context *stream2 = NULL;
2298 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2305 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2307 int sys_errno = errno;
2313 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2315 int sys_errno = errno;
2321 ret = _tstream_bsd_existing_socket(mem_ctx1,
2326 int sys_errno = errno;
2333 ret = _tstream_bsd_existing_socket(mem_ctx2,
2338 int sys_errno = errno;
2339 talloc_free(stream1);
2345 *_stream1 = stream1;
2346 *_stream2 = stream2;