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 {
193 socklen_t sa_socklen;
196 struct sockaddr_in in;
198 struct sockaddr_in6 in6;
200 struct sockaddr_un un;
201 struct sockaddr_storage ss;
205 int _tsocket_address_bsd_from_sockaddr(TALLOC_CTX *mem_ctx,
208 struct tsocket_address **_addr,
209 const char *location)
211 struct tsocket_address *addr;
212 struct tsocket_address_bsd *bsda;
214 if (sa_socklen < sizeof(sa->sa_family)) {
219 switch (sa->sa_family) {
221 if (sa_socklen > sizeof(struct sockaddr_un)) {
222 sa_socklen = sizeof(struct sockaddr_un);
226 if (sa_socklen < sizeof(struct sockaddr_in)) {
230 sa_socklen = sizeof(struct sockaddr_in);
234 if (sa_socklen < sizeof(struct sockaddr_in6)) {
238 sa_socklen = sizeof(struct sockaddr_in6);
242 errno = EAFNOSUPPORT;
246 if (sa_socklen > sizeof(struct sockaddr_storage)) {
251 addr = tsocket_address_create(mem_ctx,
252 &tsocket_address_bsd_ops,
254 struct tsocket_address_bsd,
263 memcpy(&bsda->u.ss, sa, sa_socklen);
265 bsda->sa_socklen = sa_socklen;
266 #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
267 bsda->u.sa.sa_len = bsda->sa_socklen;
274 ssize_t tsocket_address_bsd_sockaddr(const struct tsocket_address *addr,
278 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
279 struct tsocket_address_bsd);
286 if (sa_socklen < bsda->sa_socklen) {
291 if (sa_socklen > bsda->sa_socklen) {
292 memset(sa, 0, sa_socklen);
293 sa_socklen = bsda->sa_socklen;
296 memcpy(sa, &bsda->u.ss, sa_socklen);
297 #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
298 sa->sa_len = sa_socklen;
303 bool tsocket_address_is_inet(const struct tsocket_address *addr, const char *fam)
305 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
306 struct tsocket_address_bsd);
312 switch (bsda->u.sa.sa_family) {
314 if (strcasecmp(fam, "ip") == 0) {
318 if (strcasecmp(fam, "ipv4") == 0) {
325 if (strcasecmp(fam, "ip") == 0) {
329 if (strcasecmp(fam, "ipv6") == 0) {
340 int _tsocket_address_inet_from_strings(TALLOC_CTX *mem_ctx,
344 struct tsocket_address **_addr,
345 const char *location)
347 struct addrinfo hints;
348 struct addrinfo *result = NULL;
354 * we use SOCKET_STREAM here to get just one result
355 * back from getaddrinfo().
357 hints.ai_socktype = SOCK_STREAM;
358 hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
360 if (strcasecmp(fam, "ip") == 0) {
361 hints.ai_family = AF_UNSPEC;
369 } else if (strcasecmp(fam, "ipv4") == 0) {
370 hints.ai_family = AF_INET;
375 } else if (strcasecmp(fam, "ipv6") == 0) {
376 hints.ai_family = AF_INET6;
382 errno = EAFNOSUPPORT;
386 snprintf(port_str, sizeof(port_str) - 1, "%u", port);
388 ret = getaddrinfo(addr, port_str, &hints, &result);
399 if (result->ai_socktype != SOCK_STREAM) {
405 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
413 freeaddrinfo(result);
418 char *tsocket_address_inet_addr_string(const struct tsocket_address *addr,
421 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
422 struct tsocket_address_bsd);
423 char addr_str[INET6_ADDRSTRLEN+1];
431 switch (bsda->u.sa.sa_family) {
433 str = inet_ntop(bsda->u.in.sin_family,
434 &bsda->u.in.sin_addr,
435 addr_str, sizeof(addr_str));
439 str = inet_ntop(bsda->u.in6.sin6_family,
440 &bsda->u.in6.sin6_addr,
441 addr_str, sizeof(addr_str));
453 return talloc_strdup(mem_ctx, str);
456 uint16_t tsocket_address_inet_port(const struct tsocket_address *addr)
458 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
459 struct tsocket_address_bsd);
467 switch (bsda->u.sa.sa_family) {
469 port = ntohs(bsda->u.in.sin_port);
473 port = ntohs(bsda->u.in6.sin6_port);
484 int tsocket_address_inet_set_port(struct tsocket_address *addr,
487 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
488 struct tsocket_address_bsd);
495 switch (bsda->u.sa.sa_family) {
497 bsda->u.in.sin_port = htons(port);
501 bsda->u.in6.sin6_port = htons(port);
512 bool tsocket_address_is_unix(const struct tsocket_address *addr)
514 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
515 struct tsocket_address_bsd);
521 switch (bsda->u.sa.sa_family) {
529 int _tsocket_address_unix_from_path(TALLOC_CTX *mem_ctx,
531 struct tsocket_address **_addr,
532 const char *location)
534 struct sockaddr_un un;
542 if (strlen(path) > sizeof(un.sun_path)-1) {
543 errno = ENAMETOOLONG;
548 un.sun_family = AF_UNIX;
549 strncpy(un.sun_path, path, sizeof(un.sun_path)-1);
551 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
552 (struct sockaddr *)p,
560 char *tsocket_address_unix_path(const struct tsocket_address *addr,
563 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
564 struct tsocket_address_bsd);
572 switch (bsda->u.sa.sa_family) {
574 str = bsda->u.un.sun_path;
581 return talloc_strdup(mem_ctx, str);
584 static char *tsocket_address_bsd_string(const struct tsocket_address *addr,
587 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
588 struct tsocket_address_bsd);
591 const char *prefix = NULL;
594 switch (bsda->u.sa.sa_family) {
596 return talloc_asprintf(mem_ctx, "unix:%s",
597 bsda->u.un.sun_path);
611 addr_str = tsocket_address_inet_addr_string(addr, mem_ctx);
616 port = tsocket_address_inet_port(addr);
618 str = talloc_asprintf(mem_ctx, "%s:%s:%u",
619 prefix, addr_str, port);
620 talloc_free(addr_str);
625 static struct tsocket_address *tsocket_address_bsd_copy(const struct tsocket_address *addr,
627 const char *location)
629 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
630 struct tsocket_address_bsd);
631 struct tsocket_address *copy;
634 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
646 static const struct tsocket_address_ops tsocket_address_bsd_ops = {
648 .string = tsocket_address_bsd_string,
649 .copy = tsocket_address_bsd_copy,
656 struct tevent_fd *fde;
658 void *readable_private;
659 void (*readable_handler)(void *private_data);
660 void *writeable_private;
661 void (*writeable_handler)(void *private_data);
664 static void tdgram_bsd_fde_handler(struct tevent_context *ev,
665 struct tevent_fd *fde,
669 struct tdgram_bsd *bsds = talloc_get_type_abort(private_data,
672 if (flags & TEVENT_FD_WRITE) {
673 bsds->writeable_handler(bsds->writeable_private);
676 if (flags & TEVENT_FD_READ) {
677 if (!bsds->readable_handler) {
678 TEVENT_FD_NOT_READABLE(bsds->fde);
681 bsds->readable_handler(bsds->readable_private);
686 static int tdgram_bsd_set_readable_handler(struct tdgram_bsd *bsds,
687 struct tevent_context *ev,
688 void (*handler)(void *private_data),
696 if (!bsds->readable_handler) {
699 bsds->readable_handler = NULL;
700 bsds->readable_private = NULL;
705 /* read and write must use the same tevent_context */
706 if (bsds->event_ptr != ev) {
707 if (bsds->readable_handler || bsds->writeable_handler) {
711 bsds->event_ptr = NULL;
712 TALLOC_FREE(bsds->fde);
715 if (tevent_fd_get_flags(bsds->fde) == 0) {
716 TALLOC_FREE(bsds->fde);
718 bsds->fde = tevent_add_fd(ev, bsds,
719 bsds->fd, TEVENT_FD_READ,
720 tdgram_bsd_fde_handler,
727 /* cache the event context we're running on */
728 bsds->event_ptr = ev;
729 } else if (!bsds->readable_handler) {
730 TEVENT_FD_READABLE(bsds->fde);
733 bsds->readable_handler = handler;
734 bsds->readable_private = private_data;
739 static int tdgram_bsd_set_writeable_handler(struct tdgram_bsd *bsds,
740 struct tevent_context *ev,
741 void (*handler)(void *private_data),
749 if (!bsds->writeable_handler) {
752 bsds->writeable_handler = NULL;
753 bsds->writeable_private = NULL;
754 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
759 /* read and write must use the same tevent_context */
760 if (bsds->event_ptr != ev) {
761 if (bsds->readable_handler || bsds->writeable_handler) {
765 bsds->event_ptr = NULL;
766 TALLOC_FREE(bsds->fde);
769 if (tevent_fd_get_flags(bsds->fde) == 0) {
770 TALLOC_FREE(bsds->fde);
772 bsds->fde = tevent_add_fd(ev, bsds,
773 bsds->fd, TEVENT_FD_WRITE,
774 tdgram_bsd_fde_handler,
781 /* cache the event context we're running on */
782 bsds->event_ptr = ev;
783 } else if (!bsds->writeable_handler) {
784 TEVENT_FD_WRITEABLE(bsds->fde);
787 bsds->writeable_handler = handler;
788 bsds->writeable_private = private_data;
793 struct tdgram_bsd_recvfrom_state {
794 struct tdgram_context *dgram;
798 struct tsocket_address *src;
801 static int tdgram_bsd_recvfrom_destructor(struct tdgram_bsd_recvfrom_state *state)
803 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
806 tdgram_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
811 static void tdgram_bsd_recvfrom_handler(void *private_data);
813 static struct tevent_req *tdgram_bsd_recvfrom_send(TALLOC_CTX *mem_ctx,
814 struct tevent_context *ev,
815 struct tdgram_context *dgram)
817 struct tevent_req *req;
818 struct tdgram_bsd_recvfrom_state *state;
819 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
822 req = tevent_req_create(mem_ctx, &state,
823 struct tdgram_bsd_recvfrom_state);
828 state->dgram = dgram;
833 talloc_set_destructor(state, tdgram_bsd_recvfrom_destructor);
835 if (bsds->fd == -1) {
836 tevent_req_error(req, ENOTCONN);
841 * this is a fast path, not waiting for the
842 * socket to become explicit readable gains
843 * about 10%-20% performance in benchmark tests.
845 tdgram_bsd_recvfrom_handler(req);
846 if (!tevent_req_is_in_progress(req)) {
850 ret = tdgram_bsd_set_readable_handler(bsds, ev,
851 tdgram_bsd_recvfrom_handler,
854 tevent_req_error(req, errno);
861 tevent_req_post(req, ev);
865 static void tdgram_bsd_recvfrom_handler(void *private_data)
867 struct tevent_req *req = talloc_get_type_abort(private_data,
869 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
870 struct tdgram_bsd_recvfrom_state);
871 struct tdgram_context *dgram = state->dgram;
872 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
873 struct tsocket_address_bsd *bsda;
878 ret = tsocket_bsd_pending(bsds->fd);
879 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
884 if (tevent_req_error(req, err)) {
888 /* note that 'ret' can be 0 here */
889 state->buf = talloc_array(state, uint8_t, ret);
890 if (tevent_req_nomem(state->buf, req)) {
895 state->src = tsocket_address_create(state,
896 &tsocket_address_bsd_ops,
898 struct tsocket_address_bsd,
899 __location__ "bsd_recvfrom");
900 if (tevent_req_nomem(state->src, req)) {
905 bsda->sa_socklen = sizeof(bsda->u.ss);
906 #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
907 bsda->u.sa.sa_len = bsda->sa_socklen;
910 ret = recvfrom(bsds->fd, state->buf, state->len, 0,
911 &bsda->u.sa, &bsda->sa_socklen);
912 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
917 if (tevent_req_error(req, err)) {
922 * Some systems (FreeBSD, see bug #7115) return too much
923 * bytes in tsocket_bsd_pending()/ioctl(fd, FIONREAD, ...),
924 * the return value includes some IP/UDP header bytes,
925 * while recvfrom() just returns the payload.
927 state->buf = talloc_realloc(state, state->buf, uint8_t, ret);
928 if (tevent_req_nomem(state->buf, req)) {
933 tevent_req_done(req);
936 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
940 struct tsocket_address **src)
942 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
943 struct tdgram_bsd_recvfrom_state);
946 ret = tsocket_simple_int_recv(req, perrno);
948 *buf = talloc_move(mem_ctx, &state->buf);
951 *src = talloc_move(mem_ctx, &state->src);
955 tevent_req_received(req);
959 struct tdgram_bsd_sendto_state {
960 struct tdgram_context *dgram;
964 const struct tsocket_address *dst;
969 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
971 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
974 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
979 static void tdgram_bsd_sendto_handler(void *private_data);
981 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
982 struct tevent_context *ev,
983 struct tdgram_context *dgram,
986 const struct tsocket_address *dst)
988 struct tevent_req *req;
989 struct tdgram_bsd_sendto_state *state;
990 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
993 req = tevent_req_create(mem_ctx, &state,
994 struct tdgram_bsd_sendto_state);
999 state->dgram = dgram;
1005 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
1007 if (bsds->fd == -1) {
1008 tevent_req_error(req, ENOTCONN);
1013 * this is a fast path, not waiting for the
1014 * socket to become explicit writeable gains
1015 * about 10%-20% performance in benchmark tests.
1017 tdgram_bsd_sendto_handler(req);
1018 if (!tevent_req_is_in_progress(req)) {
1022 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
1023 tdgram_bsd_sendto_handler,
1026 tevent_req_error(req, errno);
1033 tevent_req_post(req, ev);
1037 static void tdgram_bsd_sendto_handler(void *private_data)
1039 struct tevent_req *req = talloc_get_type_abort(private_data,
1041 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1042 struct tdgram_bsd_sendto_state);
1043 struct tdgram_context *dgram = state->dgram;
1044 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1045 struct sockaddr *sa = NULL;
1046 socklen_t sa_socklen = 0;
1052 struct tsocket_address_bsd *bsda =
1053 talloc_get_type(state->dst->private_data,
1054 struct tsocket_address_bsd);
1057 sa_socklen = bsda->sa_socklen;
1060 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_socklen);
1061 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1066 if (tevent_req_error(req, err)) {
1072 tevent_req_done(req);
1075 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
1077 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1078 struct tdgram_bsd_sendto_state);
1081 ret = tsocket_simple_int_recv(req, perrno);
1086 tevent_req_received(req);
1090 struct tdgram_bsd_disconnect_state {
1094 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1095 struct tevent_context *ev,
1096 struct tdgram_context *dgram)
1098 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1099 struct tevent_req *req;
1100 struct tdgram_bsd_disconnect_state *state;
1105 req = tevent_req_create(mem_ctx, &state,
1106 struct tdgram_bsd_disconnect_state);
1111 if (bsds->fd == -1) {
1112 tevent_req_error(req, ENOTCONN);
1116 TALLOC_FREE(bsds->fde);
1117 ret = close(bsds->fd);
1119 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1120 if (tevent_req_error(req, err)) {
1124 tevent_req_done(req);
1126 tevent_req_post(req, ev);
1130 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1135 ret = tsocket_simple_int_recv(req, perrno);
1137 tevent_req_received(req);
1141 static const struct tdgram_context_ops tdgram_bsd_ops = {
1144 .recvfrom_send = tdgram_bsd_recvfrom_send,
1145 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1147 .sendto_send = tdgram_bsd_sendto_send,
1148 .sendto_recv = tdgram_bsd_sendto_recv,
1150 .disconnect_send = tdgram_bsd_disconnect_send,
1151 .disconnect_recv = tdgram_bsd_disconnect_recv,
1154 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1156 TALLOC_FREE(bsds->fde);
1157 if (bsds->fd != -1) {
1164 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1165 const struct tsocket_address *remote,
1167 TALLOC_CTX *mem_ctx,
1168 struct tdgram_context **_dgram,
1169 const char *location)
1171 struct tsocket_address_bsd *lbsda =
1172 talloc_get_type_abort(local->private_data,
1173 struct tsocket_address_bsd);
1174 struct tsocket_address_bsd *rbsda = NULL;
1175 struct tdgram_context *dgram;
1176 struct tdgram_bsd *bsds;
1179 bool do_bind = false;
1180 bool do_reuseaddr = false;
1181 bool do_ipv6only = false;
1182 bool is_inet = false;
1183 int sa_fam = lbsda->u.sa.sa_family;
1186 rbsda = talloc_get_type_abort(remote->private_data,
1187 struct tsocket_address_bsd);
1190 switch (lbsda->u.sa.sa_family) {
1196 if (lbsda->u.un.sun_path[0] != 0) {
1197 do_reuseaddr = true;
1202 if (lbsda->u.in.sin_port != 0) {
1203 do_reuseaddr = true;
1206 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
1213 if (lbsda->u.in6.sin6_port != 0) {
1214 do_reuseaddr = true;
1217 if (memcmp(&in6addr_any,
1218 &lbsda->u.in6.sin6_addr,
1219 sizeof(in6addr_any)) != 0) {
1231 if (!do_bind && is_inet && rbsda) {
1232 sa_fam = rbsda->u.sa.sa_family;
1235 do_ipv6only = false;
1245 fd = socket(sa_fam, SOCK_DGRAM, 0);
1250 fd = tsocket_bsd_common_prepare_fd(fd, true);
1255 dgram = tdgram_context_create(mem_ctx,
1261 int saved_errno = errno;
1263 errno = saved_errno;
1268 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1274 ret = setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY,
1275 (const void *)&val, sizeof(val));
1277 int saved_errno = errno;
1279 errno = saved_errno;
1288 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1289 (const void *)&val, sizeof(val));
1291 int saved_errno = errno;
1293 errno = saved_errno;
1301 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1302 (const void *)&val, sizeof(val));
1304 int saved_errno = errno;
1306 errno = saved_errno;
1312 ret = bind(fd, &lbsda->u.sa, lbsda->sa_socklen);
1314 int saved_errno = errno;
1316 errno = saved_errno;
1322 if (rbsda->u.sa.sa_family != sa_fam) {
1328 ret = connect(fd, &rbsda->u.sa, rbsda->sa_socklen);
1330 int saved_errno = errno;
1332 errno = saved_errno;
1341 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
1342 const struct tsocket_address *remote,
1343 TALLOC_CTX *mem_ctx,
1344 struct tdgram_context **dgram,
1345 const char *location)
1347 struct tsocket_address_bsd *lbsda =
1348 talloc_get_type_abort(local->private_data,
1349 struct tsocket_address_bsd);
1352 switch (lbsda->u.sa.sa_family) {
1364 ret = tdgram_bsd_dgram_socket(local, remote, false,
1365 mem_ctx, dgram, location);
1370 int _tdgram_unix_socket(const struct tsocket_address *local,
1371 const struct tsocket_address *remote,
1372 TALLOC_CTX *mem_ctx,
1373 struct tdgram_context **dgram,
1374 const char *location)
1376 struct tsocket_address_bsd *lbsda =
1377 talloc_get_type_abort(local->private_data,
1378 struct tsocket_address_bsd);
1381 switch (lbsda->u.sa.sa_family) {
1389 ret = tdgram_bsd_dgram_socket(local, remote, false,
1390 mem_ctx, dgram, location);
1395 struct tstream_bsd {
1399 struct tevent_fd *fde;
1401 void *readable_private;
1402 void (*readable_handler)(void *private_data);
1403 void *writeable_private;
1404 void (*writeable_handler)(void *private_data);
1407 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1408 struct tevent_fd *fde,
1412 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1413 struct tstream_bsd);
1415 if (flags & TEVENT_FD_WRITE) {
1416 bsds->writeable_handler(bsds->writeable_private);
1419 if (flags & TEVENT_FD_READ) {
1420 if (!bsds->readable_handler) {
1421 if (bsds->writeable_handler) {
1422 bsds->writeable_handler(bsds->writeable_private);
1425 TEVENT_FD_NOT_READABLE(bsds->fde);
1428 bsds->readable_handler(bsds->readable_private);
1433 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1434 struct tevent_context *ev,
1435 void (*handler)(void *private_data),
1443 if (!bsds->readable_handler) {
1446 bsds->readable_handler = NULL;
1447 bsds->readable_private = NULL;
1452 /* read and write must use the same tevent_context */
1453 if (bsds->event_ptr != ev) {
1454 if (bsds->readable_handler || bsds->writeable_handler) {
1458 bsds->event_ptr = NULL;
1459 TALLOC_FREE(bsds->fde);
1462 if (tevent_fd_get_flags(bsds->fde) == 0) {
1463 TALLOC_FREE(bsds->fde);
1465 bsds->fde = tevent_add_fd(ev, bsds,
1466 bsds->fd, TEVENT_FD_READ,
1467 tstream_bsd_fde_handler,
1474 /* cache the event context we're running on */
1475 bsds->event_ptr = ev;
1476 } else if (!bsds->readable_handler) {
1477 TEVENT_FD_READABLE(bsds->fde);
1480 bsds->readable_handler = handler;
1481 bsds->readable_private = private_data;
1486 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1487 struct tevent_context *ev,
1488 void (*handler)(void *private_data),
1496 if (!bsds->writeable_handler) {
1499 bsds->writeable_handler = NULL;
1500 bsds->writeable_private = NULL;
1501 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
1506 /* read and write must use the same tevent_context */
1507 if (bsds->event_ptr != ev) {
1508 if (bsds->readable_handler || bsds->writeable_handler) {
1512 bsds->event_ptr = NULL;
1513 TALLOC_FREE(bsds->fde);
1516 if (tevent_fd_get_flags(bsds->fde) == 0) {
1517 TALLOC_FREE(bsds->fde);
1519 bsds->fde = tevent_add_fd(ev, bsds,
1521 TEVENT_FD_READ | TEVENT_FD_WRITE,
1522 tstream_bsd_fde_handler,
1529 /* cache the event context we're running on */
1530 bsds->event_ptr = ev;
1531 } else if (!bsds->writeable_handler) {
1532 uint16_t flags = tevent_fd_get_flags(bsds->fde);
1533 flags |= TEVENT_FD_READ | TEVENT_FD_WRITE;
1534 tevent_fd_set_flags(bsds->fde, flags);
1537 bsds->writeable_handler = handler;
1538 bsds->writeable_private = private_data;
1543 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1545 struct tstream_bsd *bsds = tstream_context_data(stream,
1546 struct tstream_bsd);
1549 if (bsds->fd == -1) {
1554 ret = tsocket_bsd_pending(bsds->fd);
1559 struct tstream_bsd_readv_state {
1560 struct tstream_context *stream;
1562 struct iovec *vector;
1568 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1570 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1571 struct tstream_bsd);
1573 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1578 static void tstream_bsd_readv_handler(void *private_data);
1580 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1581 struct tevent_context *ev,
1582 struct tstream_context *stream,
1583 struct iovec *vector,
1586 struct tevent_req *req;
1587 struct tstream_bsd_readv_state *state;
1588 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1591 req = tevent_req_create(mem_ctx, &state,
1592 struct tstream_bsd_readv_state);
1597 state->stream = stream;
1598 /* we make a copy of the vector so that we can modify it */
1599 state->vector = talloc_array(state, struct iovec, count);
1600 if (tevent_req_nomem(state->vector, req)) {
1603 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1604 state->count = count;
1607 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1609 if (bsds->fd == -1) {
1610 tevent_req_error(req, ENOTCONN);
1615 * this is a fast path, not waiting for the
1616 * socket to become explicit readable gains
1617 * about 10%-20% performance in benchmark tests.
1619 tstream_bsd_readv_handler(req);
1620 if (!tevent_req_is_in_progress(req)) {
1624 ret = tstream_bsd_set_readable_handler(bsds, ev,
1625 tstream_bsd_readv_handler,
1628 tevent_req_error(req, errno);
1635 tevent_req_post(req, ev);
1639 static void tstream_bsd_readv_handler(void *private_data)
1641 struct tevent_req *req = talloc_get_type_abort(private_data,
1643 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1644 struct tstream_bsd_readv_state);
1645 struct tstream_context *stream = state->stream;
1646 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1651 ret = readv(bsds->fd, state->vector, state->count);
1653 /* propagate end of file */
1654 tevent_req_error(req, EPIPE);
1657 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1662 if (tevent_req_error(req, err)) {
1669 if (ret < state->vector[0].iov_len) {
1671 base = (uint8_t *)state->vector[0].iov_base;
1673 state->vector[0].iov_base = (void *)base;
1674 state->vector[0].iov_len -= ret;
1677 ret -= state->vector[0].iov_len;
1683 * there're maybe some empty vectors at the end
1684 * which we need to skip, otherwise we would get
1685 * ret == 0 from the readv() call and return EPIPE
1687 while (state->count > 0) {
1688 if (state->vector[0].iov_len > 0) {
1695 if (state->count > 0) {
1696 /* we have more to read */
1700 tevent_req_done(req);
1703 static int tstream_bsd_readv_recv(struct tevent_req *req,
1706 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1707 struct tstream_bsd_readv_state);
1710 ret = tsocket_simple_int_recv(req, perrno);
1715 tevent_req_received(req);
1719 struct tstream_bsd_writev_state {
1720 struct tstream_context *stream;
1722 struct iovec *vector;
1728 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1730 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1731 struct tstream_bsd);
1733 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1738 static void tstream_bsd_writev_handler(void *private_data);
1740 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1741 struct tevent_context *ev,
1742 struct tstream_context *stream,
1743 const struct iovec *vector,
1746 struct tevent_req *req;
1747 struct tstream_bsd_writev_state *state;
1748 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1751 req = tevent_req_create(mem_ctx, &state,
1752 struct tstream_bsd_writev_state);
1757 state->stream = stream;
1758 /* we make a copy of the vector so that we can modify it */
1759 state->vector = talloc_array(state, struct iovec, count);
1760 if (tevent_req_nomem(state->vector, req)) {
1763 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1764 state->count = count;
1767 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1769 if (bsds->fd == -1) {
1770 tevent_req_error(req, ENOTCONN);
1775 * this is a fast path, not waiting for the
1776 * socket to become explicit writeable gains
1777 * about 10%-20% performance in benchmark tests.
1779 tstream_bsd_writev_handler(req);
1780 if (!tevent_req_is_in_progress(req)) {
1784 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1785 tstream_bsd_writev_handler,
1788 tevent_req_error(req, errno);
1795 tevent_req_post(req, ev);
1799 static void tstream_bsd_writev_handler(void *private_data)
1801 struct tevent_req *req = talloc_get_type_abort(private_data,
1803 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1804 struct tstream_bsd_writev_state);
1805 struct tstream_context *stream = state->stream;
1806 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1811 ret = writev(bsds->fd, state->vector, state->count);
1813 /* propagate end of file */
1814 tevent_req_error(req, EPIPE);
1817 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1822 if (tevent_req_error(req, err)) {
1829 if (ret < state->vector[0].iov_len) {
1831 base = (uint8_t *)state->vector[0].iov_base;
1833 state->vector[0].iov_base = (void *)base;
1834 state->vector[0].iov_len -= ret;
1837 ret -= state->vector[0].iov_len;
1843 * there're maybe some empty vectors at the end
1844 * which we need to skip, otherwise we would get
1845 * ret == 0 from the writev() call and return EPIPE
1847 while (state->count > 0) {
1848 if (state->vector[0].iov_len > 0) {
1855 if (state->count > 0) {
1856 /* we have more to read */
1860 tevent_req_done(req);
1863 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1865 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1866 struct tstream_bsd_writev_state);
1869 ret = tsocket_simple_int_recv(req, perrno);
1874 tevent_req_received(req);
1878 struct tstream_bsd_disconnect_state {
1882 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1883 struct tevent_context *ev,
1884 struct tstream_context *stream)
1886 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1887 struct tevent_req *req;
1888 struct tstream_bsd_disconnect_state *state;
1893 req = tevent_req_create(mem_ctx, &state,
1894 struct tstream_bsd_disconnect_state);
1899 if (bsds->fd == -1) {
1900 tevent_req_error(req, ENOTCONN);
1904 TALLOC_FREE(bsds->fde);
1905 ret = close(bsds->fd);
1907 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1908 if (tevent_req_error(req, err)) {
1912 tevent_req_done(req);
1914 tevent_req_post(req, ev);
1918 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1923 ret = tsocket_simple_int_recv(req, perrno);
1925 tevent_req_received(req);
1929 static const struct tstream_context_ops tstream_bsd_ops = {
1932 .pending_bytes = tstream_bsd_pending_bytes,
1934 .readv_send = tstream_bsd_readv_send,
1935 .readv_recv = tstream_bsd_readv_recv,
1937 .writev_send = tstream_bsd_writev_send,
1938 .writev_recv = tstream_bsd_writev_recv,
1940 .disconnect_send = tstream_bsd_disconnect_send,
1941 .disconnect_recv = tstream_bsd_disconnect_recv,
1944 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1946 TALLOC_FREE(bsds->fde);
1947 if (bsds->fd != -1) {
1954 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1956 struct tstream_context **_stream,
1957 const char *location)
1959 struct tstream_context *stream;
1960 struct tstream_bsd *bsds;
1962 stream = tstream_context_create(mem_ctx,
1972 talloc_set_destructor(bsds, tstream_bsd_destructor);
1978 struct tstream_bsd_connect_state {
1980 struct tevent_fd *fde;
1981 struct tstream_conext *stream;
1982 struct tsocket_address *local;
1985 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1987 TALLOC_FREE(state->fde);
1988 if (state->fd != -1) {
1996 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1997 struct tevent_fd *fde,
1999 void *private_data);
2001 static struct tevent_req *tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
2002 struct tevent_context *ev,
2004 const struct tsocket_address *local,
2005 const struct tsocket_address *remote)
2007 struct tevent_req *req;
2008 struct tstream_bsd_connect_state *state;
2009 struct tsocket_address_bsd *lbsda =
2010 talloc_get_type_abort(local->private_data,
2011 struct tsocket_address_bsd);
2012 struct tsocket_address_bsd *lrbsda = NULL;
2013 struct tsocket_address_bsd *rbsda =
2014 talloc_get_type_abort(remote->private_data,
2015 struct tsocket_address_bsd);
2019 bool do_bind = false;
2020 bool do_reuseaddr = false;
2021 bool do_ipv6only = false;
2022 bool is_inet = false;
2023 int sa_fam = lbsda->u.sa.sa_family;
2025 req = tevent_req_create(mem_ctx, &state,
2026 struct tstream_bsd_connect_state);
2033 talloc_set_destructor(state, tstream_bsd_connect_destructor);
2035 /* give the wrappers a chance to report an error */
2036 if (sys_errno != 0) {
2037 tevent_req_error(req, sys_errno);
2041 switch (lbsda->u.sa.sa_family) {
2043 if (lbsda->u.un.sun_path[0] != 0) {
2044 do_reuseaddr = true;
2049 if (lbsda->u.in.sin_port != 0) {
2050 do_reuseaddr = true;
2053 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
2060 if (lbsda->u.in6.sin6_port != 0) {
2061 do_reuseaddr = true;
2064 if (memcmp(&in6addr_any,
2065 &lbsda->u.in6.sin6_addr,
2066 sizeof(in6addr_any)) != 0) {
2074 tevent_req_error(req, EINVAL);
2078 if (!do_bind && is_inet) {
2079 sa_fam = rbsda->u.sa.sa_family;
2082 do_ipv6only = false;
2093 state->local = tsocket_address_create(state,
2094 &tsocket_address_bsd_ops,
2096 struct tsocket_address_bsd,
2097 __location__ "bsd_connect");
2098 if (tevent_req_nomem(state->local, req)) {
2102 ZERO_STRUCTP(lrbsda);
2103 lrbsda->sa_socklen = sizeof(lrbsda->u.ss);
2104 #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
2105 lrbsda->u.sa.sa_len = lrbsda->sa_socklen;
2109 state->fd = socket(sa_fam, SOCK_STREAM, 0);
2110 if (state->fd == -1) {
2111 tevent_req_error(req, errno);
2115 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
2116 if (state->fd == -1) {
2117 tevent_req_error(req, errno);
2125 ret = setsockopt(state->fd, IPPROTO_IPV6, IPV6_V6ONLY,
2126 (const void *)&val, sizeof(val));
2128 tevent_req_error(req, errno);
2137 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
2138 (const void *)&val, sizeof(val));
2140 tevent_req_error(req, errno);
2146 ret = bind(state->fd, &lbsda->u.sa, lbsda->sa_socklen);
2148 tevent_req_error(req, errno);
2153 if (rbsda->u.sa.sa_family != sa_fam) {
2154 tevent_req_error(req, EINVAL);
2158 ret = connect(state->fd, &rbsda->u.sa, rbsda->sa_socklen);
2159 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2164 if (tevent_req_error(req, err)) {
2168 if (!state->local) {
2169 tevent_req_done(req);
2173 ret = getsockname(state->fd, &lrbsda->u.sa, &lrbsda->sa_socklen);
2175 tevent_req_error(req, errno);
2179 tevent_req_done(req);
2183 state->fde = tevent_add_fd(ev, state,
2185 TEVENT_FD_READ | TEVENT_FD_WRITE,
2186 tstream_bsd_connect_fde_handler,
2188 if (tevent_req_nomem(state->fde, req)) {
2195 tevent_req_post(req, ev);
2199 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
2200 struct tevent_fd *fde,
2204 struct tevent_req *req = talloc_get_type_abort(private_data,
2206 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2207 struct tstream_bsd_connect_state);
2208 struct tsocket_address_bsd *lrbsda = NULL;
2211 socklen_t len = sizeof(error);
2215 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
2222 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2227 if (tevent_req_error(req, err)) {
2231 if (!state->local) {
2232 tevent_req_done(req);
2236 lrbsda = talloc_get_type_abort(state->local->private_data,
2237 struct tsocket_address_bsd);
2239 ret = getsockname(state->fd, &lrbsda->u.sa, &lrbsda->sa_socklen);
2241 tevent_req_error(req, errno);
2245 tevent_req_done(req);
2248 static int tstream_bsd_connect_recv(struct tevent_req *req,
2250 TALLOC_CTX *mem_ctx,
2251 struct tstream_context **stream,
2252 struct tsocket_address **local,
2253 const char *location)
2255 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2256 struct tstream_bsd_connect_state);
2259 ret = tsocket_simple_int_recv(req, perrno);
2261 ret = _tstream_bsd_existing_socket(mem_ctx,
2269 TALLOC_FREE(state->fde);
2273 *local = talloc_move(mem_ctx, &state->local);
2278 tevent_req_received(req);
2282 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2283 struct tevent_context *ev,
2284 const struct tsocket_address *local,
2285 const struct tsocket_address *remote)
2287 struct tsocket_address_bsd *lbsda =
2288 talloc_get_type_abort(local->private_data,
2289 struct tsocket_address_bsd);
2290 struct tevent_req *req;
2293 switch (lbsda->u.sa.sa_family) {
2305 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2310 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2312 TALLOC_CTX *mem_ctx,
2313 struct tstream_context **stream,
2314 struct tsocket_address **local,
2315 const char *location)
2317 return tstream_bsd_connect_recv(req, perrno,
2318 mem_ctx, stream, local,
2322 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2323 struct tevent_context *ev,
2324 const struct tsocket_address *local,
2325 const struct tsocket_address *remote)
2327 struct tsocket_address_bsd *lbsda =
2328 talloc_get_type_abort(local->private_data,
2329 struct tsocket_address_bsd);
2330 struct tevent_req *req;
2333 switch (lbsda->u.sa.sa_family) {
2341 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2346 int _tstream_unix_connect_recv(struct tevent_req *req,
2348 TALLOC_CTX *mem_ctx,
2349 struct tstream_context **stream,
2350 const char *location)
2352 return tstream_bsd_connect_recv(req, perrno,
2353 mem_ctx, stream, NULL,
2357 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2358 struct tstream_context **_stream1,
2359 TALLOC_CTX *mem_ctx2,
2360 struct tstream_context **_stream2,
2361 const char *location)
2367 struct tstream_context *stream1 = NULL;
2368 struct tstream_context *stream2 = NULL;
2370 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2377 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2379 int sys_errno = errno;
2385 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2387 int sys_errno = errno;
2393 ret = _tstream_bsd_existing_socket(mem_ctx1,
2398 int sys_errno = errno;
2405 ret = _tstream_bsd_existing_socket(mem_ctx2,
2410 int sys_errno = errno;
2411 talloc_free(stream1);
2417 *_stream1 = stream1;
2418 *_stream2 = stream2;