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;
271 ssize_t tsocket_address_bsd_sockaddr(const struct tsocket_address *addr,
275 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
276 struct tsocket_address_bsd);
283 if (sa_socklen < bsda->sa_socklen) {
288 if (sa_socklen > bsda->sa_socklen) {
289 memset(sa, 0, sa_socklen);
290 sa_socklen = bsda->sa_socklen;
293 memcpy(sa, &bsda->u.ss, sa_socklen);
297 bool tsocket_address_is_inet(const struct tsocket_address *addr, const char *fam)
299 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
300 struct tsocket_address_bsd);
306 switch (bsda->u.sa.sa_family) {
308 if (strcasecmp(fam, "ip") == 0) {
312 if (strcasecmp(fam, "ipv4") == 0) {
319 if (strcasecmp(fam, "ip") == 0) {
323 if (strcasecmp(fam, "ipv6") == 0) {
334 int _tsocket_address_inet_from_strings(TALLOC_CTX *mem_ctx,
338 struct tsocket_address **_addr,
339 const char *location)
341 struct addrinfo hints;
342 struct addrinfo *result = NULL;
348 * we use SOCKET_STREAM here to get just one result
349 * back from getaddrinfo().
351 hints.ai_socktype = SOCK_STREAM;
352 hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
354 if (strcasecmp(fam, "ip") == 0) {
355 hints.ai_family = AF_UNSPEC;
363 } else if (strcasecmp(fam, "ipv4") == 0) {
364 hints.ai_family = AF_INET;
369 } else if (strcasecmp(fam, "ipv6") == 0) {
370 hints.ai_family = AF_INET6;
376 errno = EAFNOSUPPORT;
380 snprintf(port_str, sizeof(port_str) - 1, "%u", port);
382 ret = getaddrinfo(addr, port_str, &hints, &result);
393 if (result->ai_socktype != SOCK_STREAM) {
399 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
407 freeaddrinfo(result);
412 char *tsocket_address_inet_addr_string(const struct tsocket_address *addr,
415 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
416 struct tsocket_address_bsd);
417 char addr_str[INET6_ADDRSTRLEN+1];
425 switch (bsda->u.sa.sa_family) {
427 str = inet_ntop(bsda->u.in.sin_family,
428 &bsda->u.in.sin_addr,
429 addr_str, sizeof(addr_str));
433 str = inet_ntop(bsda->u.in6.sin6_family,
434 &bsda->u.in6.sin6_addr,
435 addr_str, sizeof(addr_str));
447 return talloc_strdup(mem_ctx, str);
450 uint16_t tsocket_address_inet_port(const struct tsocket_address *addr)
452 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
453 struct tsocket_address_bsd);
461 switch (bsda->u.sa.sa_family) {
463 port = ntohs(bsda->u.in.sin_port);
467 port = ntohs(bsda->u.in6.sin6_port);
478 int tsocket_address_inet_set_port(struct tsocket_address *addr,
481 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
482 struct tsocket_address_bsd);
489 switch (bsda->u.sa.sa_family) {
491 bsda->u.in.sin_port = htons(port);
495 bsda->u.in6.sin6_port = htons(port);
506 bool tsocket_address_is_unix(const struct tsocket_address *addr)
508 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
509 struct tsocket_address_bsd);
515 switch (bsda->u.sa.sa_family) {
523 int _tsocket_address_unix_from_path(TALLOC_CTX *mem_ctx,
525 struct tsocket_address **_addr,
526 const char *location)
528 struct sockaddr_un un;
536 if (strlen(path) > sizeof(un.sun_path)-1) {
537 errno = ENAMETOOLONG;
542 un.sun_family = AF_UNIX;
543 strncpy(un.sun_path, path, sizeof(un.sun_path)-1);
545 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
546 (struct sockaddr *)p,
554 char *tsocket_address_unix_path(const struct tsocket_address *addr,
557 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
558 struct tsocket_address_bsd);
566 switch (bsda->u.sa.sa_family) {
568 str = bsda->u.un.sun_path;
575 return talloc_strdup(mem_ctx, str);
578 static char *tsocket_address_bsd_string(const struct tsocket_address *addr,
581 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
582 struct tsocket_address_bsd);
585 const char *prefix = NULL;
588 switch (bsda->u.sa.sa_family) {
590 return talloc_asprintf(mem_ctx, "unix:%s",
591 bsda->u.un.sun_path);
605 addr_str = tsocket_address_inet_addr_string(addr, mem_ctx);
610 port = tsocket_address_inet_port(addr);
612 str = talloc_asprintf(mem_ctx, "%s:%s:%u",
613 prefix, addr_str, port);
614 talloc_free(addr_str);
619 static struct tsocket_address *tsocket_address_bsd_copy(const struct tsocket_address *addr,
621 const char *location)
623 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
624 struct tsocket_address_bsd);
625 struct tsocket_address *copy;
628 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
640 static const struct tsocket_address_ops tsocket_address_bsd_ops = {
642 .string = tsocket_address_bsd_string,
643 .copy = tsocket_address_bsd_copy,
650 struct tevent_fd *fde;
652 void *readable_private;
653 void (*readable_handler)(void *private_data);
654 void *writeable_private;
655 void (*writeable_handler)(void *private_data);
658 static void tdgram_bsd_fde_handler(struct tevent_context *ev,
659 struct tevent_fd *fde,
663 struct tdgram_bsd *bsds = talloc_get_type_abort(private_data,
666 if (flags & TEVENT_FD_WRITE) {
667 bsds->writeable_handler(bsds->writeable_private);
670 if (flags & TEVENT_FD_READ) {
671 if (!bsds->readable_handler) {
672 TEVENT_FD_NOT_READABLE(bsds->fde);
675 bsds->readable_handler(bsds->readable_private);
680 static int tdgram_bsd_set_readable_handler(struct tdgram_bsd *bsds,
681 struct tevent_context *ev,
682 void (*handler)(void *private_data),
690 if (!bsds->readable_handler) {
693 bsds->readable_handler = NULL;
694 bsds->readable_private = NULL;
699 /* read and write must use the same tevent_context */
700 if (bsds->event_ptr != ev) {
701 if (bsds->readable_handler || bsds->writeable_handler) {
705 bsds->event_ptr = NULL;
706 TALLOC_FREE(bsds->fde);
709 if (tevent_fd_get_flags(bsds->fde) == 0) {
710 TALLOC_FREE(bsds->fde);
712 bsds->fde = tevent_add_fd(ev, bsds,
713 bsds->fd, TEVENT_FD_READ,
714 tdgram_bsd_fde_handler,
721 /* cache the event context we're running on */
722 bsds->event_ptr = ev;
723 } else if (!bsds->readable_handler) {
724 TEVENT_FD_READABLE(bsds->fde);
727 bsds->readable_handler = handler;
728 bsds->readable_private = private_data;
733 static int tdgram_bsd_set_writeable_handler(struct tdgram_bsd *bsds,
734 struct tevent_context *ev,
735 void (*handler)(void *private_data),
743 if (!bsds->writeable_handler) {
746 bsds->writeable_handler = NULL;
747 bsds->writeable_private = NULL;
748 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
753 /* read and write must use the same tevent_context */
754 if (bsds->event_ptr != ev) {
755 if (bsds->readable_handler || bsds->writeable_handler) {
759 bsds->event_ptr = NULL;
760 TALLOC_FREE(bsds->fde);
763 if (tevent_fd_get_flags(bsds->fde) == 0) {
764 TALLOC_FREE(bsds->fde);
766 bsds->fde = tevent_add_fd(ev, bsds,
767 bsds->fd, TEVENT_FD_WRITE,
768 tdgram_bsd_fde_handler,
775 /* cache the event context we're running on */
776 bsds->event_ptr = ev;
777 } else if (!bsds->writeable_handler) {
778 TEVENT_FD_WRITEABLE(bsds->fde);
781 bsds->writeable_handler = handler;
782 bsds->writeable_private = private_data;
787 struct tdgram_bsd_recvfrom_state {
788 struct tdgram_context *dgram;
792 struct tsocket_address *src;
795 static int tdgram_bsd_recvfrom_destructor(struct tdgram_bsd_recvfrom_state *state)
797 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
800 tdgram_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
805 static void tdgram_bsd_recvfrom_handler(void *private_data);
807 static struct tevent_req *tdgram_bsd_recvfrom_send(TALLOC_CTX *mem_ctx,
808 struct tevent_context *ev,
809 struct tdgram_context *dgram)
811 struct tevent_req *req;
812 struct tdgram_bsd_recvfrom_state *state;
813 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
816 req = tevent_req_create(mem_ctx, &state,
817 struct tdgram_bsd_recvfrom_state);
822 state->dgram = dgram;
827 talloc_set_destructor(state, tdgram_bsd_recvfrom_destructor);
829 if (bsds->fd == -1) {
830 tevent_req_error(req, ENOTCONN);
835 * this is a fast path, not waiting for the
836 * socket to become explicit readable gains
837 * about 10%-20% performance in benchmark tests.
839 tdgram_bsd_recvfrom_handler(req);
840 if (!tevent_req_is_in_progress(req)) {
844 ret = tdgram_bsd_set_readable_handler(bsds, ev,
845 tdgram_bsd_recvfrom_handler,
848 tevent_req_error(req, errno);
855 tevent_req_post(req, ev);
859 static void tdgram_bsd_recvfrom_handler(void *private_data)
861 struct tevent_req *req = talloc_get_type_abort(private_data,
863 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
864 struct tdgram_bsd_recvfrom_state);
865 struct tdgram_context *dgram = state->dgram;
866 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
867 struct tsocket_address_bsd *bsda;
872 ret = tsocket_bsd_pending(bsds->fd);
877 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
882 if (tevent_req_error(req, err)) {
886 state->buf = talloc_array(state, uint8_t, ret);
887 if (tevent_req_nomem(state->buf, req)) {
892 state->src = tsocket_address_create(state,
893 &tsocket_address_bsd_ops,
895 struct tsocket_address_bsd,
896 __location__ "bsd_recvfrom");
897 if (tevent_req_nomem(state->src, req)) {
902 bsda->sa_socklen = sizeof(bsda->u.ss);
904 ret = recvfrom(bsds->fd, state->buf, state->len, 0,
905 &bsda->u.sa, &bsda->sa_socklen);
906 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
911 if (tevent_req_error(req, err)) {
916 * Some systems (FreeBSD, see bug #7115) return too much
917 * bytes in tsocket_bsd_pending()/ioctl(fd, FIONREAD, ...),
918 * the return value includes some IP/UDP header bytes,
919 * while recvfrom() just returns the payload.
921 state->buf = talloc_realloc(state, state->buf, uint8_t, ret);
922 if (tevent_req_nomem(state->buf, req)) {
927 tevent_req_done(req);
930 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
934 struct tsocket_address **src)
936 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
937 struct tdgram_bsd_recvfrom_state);
940 ret = tsocket_simple_int_recv(req, perrno);
942 *buf = talloc_move(mem_ctx, &state->buf);
945 *src = talloc_move(mem_ctx, &state->src);
949 tevent_req_received(req);
953 struct tdgram_bsd_sendto_state {
954 struct tdgram_context *dgram;
958 const struct tsocket_address *dst;
963 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
965 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
968 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
973 static void tdgram_bsd_sendto_handler(void *private_data);
975 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
976 struct tevent_context *ev,
977 struct tdgram_context *dgram,
980 const struct tsocket_address *dst)
982 struct tevent_req *req;
983 struct tdgram_bsd_sendto_state *state;
984 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
987 req = tevent_req_create(mem_ctx, &state,
988 struct tdgram_bsd_sendto_state);
993 state->dgram = dgram;
999 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
1001 if (bsds->fd == -1) {
1002 tevent_req_error(req, ENOTCONN);
1007 * this is a fast path, not waiting for the
1008 * socket to become explicit writeable gains
1009 * about 10%-20% performance in benchmark tests.
1011 tdgram_bsd_sendto_handler(req);
1012 if (!tevent_req_is_in_progress(req)) {
1016 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
1017 tdgram_bsd_sendto_handler,
1020 tevent_req_error(req, errno);
1027 tevent_req_post(req, ev);
1031 static void tdgram_bsd_sendto_handler(void *private_data)
1033 struct tevent_req *req = talloc_get_type_abort(private_data,
1035 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1036 struct tdgram_bsd_sendto_state);
1037 struct tdgram_context *dgram = state->dgram;
1038 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1039 struct sockaddr *sa = NULL;
1040 socklen_t sa_socklen = 0;
1046 struct tsocket_address_bsd *bsda =
1047 talloc_get_type(state->dst->private_data,
1048 struct tsocket_address_bsd);
1051 sa_socklen = bsda->sa_socklen;
1054 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_socklen);
1055 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1060 if (tevent_req_error(req, err)) {
1066 tevent_req_done(req);
1069 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
1071 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1072 struct tdgram_bsd_sendto_state);
1075 ret = tsocket_simple_int_recv(req, perrno);
1080 tevent_req_received(req);
1084 struct tdgram_bsd_disconnect_state {
1088 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1089 struct tevent_context *ev,
1090 struct tdgram_context *dgram)
1092 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1093 struct tevent_req *req;
1094 struct tdgram_bsd_disconnect_state *state;
1099 req = tevent_req_create(mem_ctx, &state,
1100 struct tdgram_bsd_disconnect_state);
1105 if (bsds->fd == -1) {
1106 tevent_req_error(req, ENOTCONN);
1110 ret = close(bsds->fd);
1112 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1113 if (tevent_req_error(req, err)) {
1117 tevent_req_done(req);
1119 tevent_req_post(req, ev);
1123 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1128 ret = tsocket_simple_int_recv(req, perrno);
1130 tevent_req_received(req);
1134 static const struct tdgram_context_ops tdgram_bsd_ops = {
1137 .recvfrom_send = tdgram_bsd_recvfrom_send,
1138 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1140 .sendto_send = tdgram_bsd_sendto_send,
1141 .sendto_recv = tdgram_bsd_sendto_recv,
1143 .disconnect_send = tdgram_bsd_disconnect_send,
1144 .disconnect_recv = tdgram_bsd_disconnect_recv,
1147 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1149 TALLOC_FREE(bsds->fde);
1150 if (bsds->fd != -1) {
1157 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1158 const struct tsocket_address *remote,
1160 TALLOC_CTX *mem_ctx,
1161 struct tdgram_context **_dgram,
1162 const char *location)
1164 struct tsocket_address_bsd *lbsda =
1165 talloc_get_type_abort(local->private_data,
1166 struct tsocket_address_bsd);
1167 struct tsocket_address_bsd *rbsda = NULL;
1168 struct tdgram_context *dgram;
1169 struct tdgram_bsd *bsds;
1172 bool do_bind = false;
1173 bool do_reuseaddr = false;
1174 bool do_ipv6only = false;
1175 bool is_inet = false;
1176 int sa_fam = lbsda->u.sa.sa_family;
1179 rbsda = talloc_get_type_abort(remote->private_data,
1180 struct tsocket_address_bsd);
1183 switch (lbsda->u.sa.sa_family) {
1189 if (lbsda->u.un.sun_path[0] != 0) {
1190 do_reuseaddr = true;
1195 if (lbsda->u.in.sin_port != 0) {
1196 do_reuseaddr = true;
1199 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
1206 if (lbsda->u.in6.sin6_port != 0) {
1207 do_reuseaddr = true;
1210 if (memcmp(&in6addr_any,
1211 &lbsda->u.in6.sin6_addr,
1212 sizeof(in6addr_any)) != 0) {
1224 if (!do_bind && is_inet && rbsda) {
1225 sa_fam = rbsda->u.sa.sa_family;
1228 do_ipv6only = false;
1238 fd = socket(sa_fam, SOCK_DGRAM, 0);
1243 fd = tsocket_bsd_common_prepare_fd(fd, true);
1248 dgram = tdgram_context_create(mem_ctx,
1254 int saved_errno = errno;
1256 errno = saved_errno;
1261 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1267 ret = setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY,
1268 (const void *)&val, sizeof(val));
1270 int saved_errno = errno;
1272 errno = saved_errno;
1281 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1282 (const void *)&val, sizeof(val));
1284 int saved_errno = errno;
1286 errno = saved_errno;
1294 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1295 (const void *)&val, sizeof(val));
1297 int saved_errno = errno;
1299 errno = saved_errno;
1305 ret = bind(fd, &lbsda->u.sa, lbsda->sa_socklen);
1307 int saved_errno = errno;
1309 errno = saved_errno;
1315 if (rbsda->u.sa.sa_family != sa_fam) {
1321 ret = connect(fd, &rbsda->u.sa, rbsda->sa_socklen);
1323 int saved_errno = errno;
1325 errno = saved_errno;
1334 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
1335 const struct tsocket_address *remote,
1336 TALLOC_CTX *mem_ctx,
1337 struct tdgram_context **dgram,
1338 const char *location)
1340 struct tsocket_address_bsd *lbsda =
1341 talloc_get_type_abort(local->private_data,
1342 struct tsocket_address_bsd);
1345 switch (lbsda->u.sa.sa_family) {
1357 ret = tdgram_bsd_dgram_socket(local, remote, false,
1358 mem_ctx, dgram, location);
1363 int _tdgram_unix_socket(const struct tsocket_address *local,
1364 const struct tsocket_address *remote,
1365 TALLOC_CTX *mem_ctx,
1366 struct tdgram_context **dgram,
1367 const char *location)
1369 struct tsocket_address_bsd *lbsda =
1370 talloc_get_type_abort(local->private_data,
1371 struct tsocket_address_bsd);
1374 switch (lbsda->u.sa.sa_family) {
1382 ret = tdgram_bsd_dgram_socket(local, remote, false,
1383 mem_ctx, dgram, location);
1388 struct tstream_bsd {
1392 struct tevent_fd *fde;
1394 void *readable_private;
1395 void (*readable_handler)(void *private_data);
1396 void *writeable_private;
1397 void (*writeable_handler)(void *private_data);
1400 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1401 struct tevent_fd *fde,
1405 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1406 struct tstream_bsd);
1408 if (flags & TEVENT_FD_WRITE) {
1409 bsds->writeable_handler(bsds->writeable_private);
1412 if (flags & TEVENT_FD_READ) {
1413 if (!bsds->readable_handler) {
1414 if (bsds->writeable_handler) {
1415 bsds->writeable_handler(bsds->writeable_private);
1418 TEVENT_FD_NOT_READABLE(bsds->fde);
1421 bsds->readable_handler(bsds->readable_private);
1426 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1427 struct tevent_context *ev,
1428 void (*handler)(void *private_data),
1436 if (!bsds->readable_handler) {
1439 bsds->readable_handler = NULL;
1440 bsds->readable_private = NULL;
1445 /* read and write must use the same tevent_context */
1446 if (bsds->event_ptr != ev) {
1447 if (bsds->readable_handler || bsds->writeable_handler) {
1451 bsds->event_ptr = NULL;
1452 TALLOC_FREE(bsds->fde);
1455 if (tevent_fd_get_flags(bsds->fde) == 0) {
1456 TALLOC_FREE(bsds->fde);
1458 bsds->fde = tevent_add_fd(ev, bsds,
1459 bsds->fd, TEVENT_FD_READ,
1460 tstream_bsd_fde_handler,
1467 /* cache the event context we're running on */
1468 bsds->event_ptr = ev;
1469 } else if (!bsds->readable_handler) {
1470 TEVENT_FD_READABLE(bsds->fde);
1473 bsds->readable_handler = handler;
1474 bsds->readable_private = private_data;
1479 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1480 struct tevent_context *ev,
1481 void (*handler)(void *private_data),
1489 if (!bsds->writeable_handler) {
1492 bsds->writeable_handler = NULL;
1493 bsds->writeable_private = NULL;
1494 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
1499 /* read and write must use the same tevent_context */
1500 if (bsds->event_ptr != ev) {
1501 if (bsds->readable_handler || bsds->writeable_handler) {
1505 bsds->event_ptr = NULL;
1506 TALLOC_FREE(bsds->fde);
1509 if (tevent_fd_get_flags(bsds->fde) == 0) {
1510 TALLOC_FREE(bsds->fde);
1512 bsds->fde = tevent_add_fd(ev, bsds,
1514 TEVENT_FD_READ | TEVENT_FD_WRITE,
1515 tstream_bsd_fde_handler,
1522 /* cache the event context we're running on */
1523 bsds->event_ptr = ev;
1524 } else if (!bsds->writeable_handler) {
1525 uint16_t flags = tevent_fd_get_flags(bsds->fde);
1526 flags |= TEVENT_FD_READ | TEVENT_FD_WRITE;
1527 tevent_fd_set_flags(bsds->fde, flags);
1530 bsds->writeable_handler = handler;
1531 bsds->writeable_private = private_data;
1536 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1538 struct tstream_bsd *bsds = tstream_context_data(stream,
1539 struct tstream_bsd);
1542 if (bsds->fd == -1) {
1547 ret = tsocket_bsd_pending(bsds->fd);
1552 struct tstream_bsd_readv_state {
1553 struct tstream_context *stream;
1555 struct iovec *vector;
1561 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1563 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1564 struct tstream_bsd);
1566 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1571 static void tstream_bsd_readv_handler(void *private_data);
1573 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1574 struct tevent_context *ev,
1575 struct tstream_context *stream,
1576 struct iovec *vector,
1579 struct tevent_req *req;
1580 struct tstream_bsd_readv_state *state;
1581 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1584 req = tevent_req_create(mem_ctx, &state,
1585 struct tstream_bsd_readv_state);
1590 state->stream = stream;
1591 /* we make a copy of the vector so that we can modify it */
1592 state->vector = talloc_array(state, struct iovec, count);
1593 if (tevent_req_nomem(state->vector, req)) {
1596 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1597 state->count = count;
1600 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1602 if (bsds->fd == -1) {
1603 tevent_req_error(req, ENOTCONN);
1608 * this is a fast path, not waiting for the
1609 * socket to become explicit readable gains
1610 * about 10%-20% performance in benchmark tests.
1612 tstream_bsd_readv_handler(req);
1613 if (!tevent_req_is_in_progress(req)) {
1617 ret = tstream_bsd_set_readable_handler(bsds, ev,
1618 tstream_bsd_readv_handler,
1621 tevent_req_error(req, errno);
1628 tevent_req_post(req, ev);
1632 static void tstream_bsd_readv_handler(void *private_data)
1634 struct tevent_req *req = talloc_get_type_abort(private_data,
1636 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1637 struct tstream_bsd_readv_state);
1638 struct tstream_context *stream = state->stream;
1639 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1644 ret = readv(bsds->fd, state->vector, state->count);
1646 /* propagate end of file */
1647 tevent_req_error(req, EPIPE);
1650 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1655 if (tevent_req_error(req, err)) {
1662 if (ret < state->vector[0].iov_len) {
1664 base = (uint8_t *)state->vector[0].iov_base;
1666 state->vector[0].iov_base = (void *)base;
1667 state->vector[0].iov_len -= ret;
1670 ret -= state->vector[0].iov_len;
1676 * there're maybe some empty vectors at the end
1677 * which we need to skip, otherwise we would get
1678 * ret == 0 from the readv() call and return EPIPE
1680 while (state->count > 0) {
1681 if (state->vector[0].iov_len > 0) {
1688 if (state->count > 0) {
1689 /* we have more to read */
1693 tevent_req_done(req);
1696 static int tstream_bsd_readv_recv(struct tevent_req *req,
1699 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1700 struct tstream_bsd_readv_state);
1703 ret = tsocket_simple_int_recv(req, perrno);
1708 tevent_req_received(req);
1712 struct tstream_bsd_writev_state {
1713 struct tstream_context *stream;
1715 struct iovec *vector;
1721 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1723 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1724 struct tstream_bsd);
1726 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1731 static void tstream_bsd_writev_handler(void *private_data);
1733 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1734 struct tevent_context *ev,
1735 struct tstream_context *stream,
1736 const struct iovec *vector,
1739 struct tevent_req *req;
1740 struct tstream_bsd_writev_state *state;
1741 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1744 req = tevent_req_create(mem_ctx, &state,
1745 struct tstream_bsd_writev_state);
1750 state->stream = stream;
1751 /* we make a copy of the vector so that we can modify it */
1752 state->vector = talloc_array(state, struct iovec, count);
1753 if (tevent_req_nomem(state->vector, req)) {
1756 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1757 state->count = count;
1760 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1762 if (bsds->fd == -1) {
1763 tevent_req_error(req, ENOTCONN);
1768 * this is a fast path, not waiting for the
1769 * socket to become explicit writeable gains
1770 * about 10%-20% performance in benchmark tests.
1772 tstream_bsd_writev_handler(req);
1773 if (!tevent_req_is_in_progress(req)) {
1777 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1778 tstream_bsd_writev_handler,
1781 tevent_req_error(req, errno);
1788 tevent_req_post(req, ev);
1792 static void tstream_bsd_writev_handler(void *private_data)
1794 struct tevent_req *req = talloc_get_type_abort(private_data,
1796 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1797 struct tstream_bsd_writev_state);
1798 struct tstream_context *stream = state->stream;
1799 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1804 ret = writev(bsds->fd, state->vector, state->count);
1806 /* propagate end of file */
1807 tevent_req_error(req, EPIPE);
1810 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1815 if (tevent_req_error(req, err)) {
1822 if (ret < state->vector[0].iov_len) {
1824 base = (uint8_t *)state->vector[0].iov_base;
1826 state->vector[0].iov_base = (void *)base;
1827 state->vector[0].iov_len -= ret;
1830 ret -= state->vector[0].iov_len;
1836 * there're maybe some empty vectors at the end
1837 * which we need to skip, otherwise we would get
1838 * ret == 0 from the writev() call and return EPIPE
1840 while (state->count > 0) {
1841 if (state->vector[0].iov_len > 0) {
1848 if (state->count > 0) {
1849 /* we have more to read */
1853 tevent_req_done(req);
1856 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1858 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1859 struct tstream_bsd_writev_state);
1862 ret = tsocket_simple_int_recv(req, perrno);
1867 tevent_req_received(req);
1871 struct tstream_bsd_disconnect_state {
1875 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1876 struct tevent_context *ev,
1877 struct tstream_context *stream)
1879 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1880 struct tevent_req *req;
1881 struct tstream_bsd_disconnect_state *state;
1886 req = tevent_req_create(mem_ctx, &state,
1887 struct tstream_bsd_disconnect_state);
1892 if (bsds->fd == -1) {
1893 tevent_req_error(req, ENOTCONN);
1897 ret = close(bsds->fd);
1899 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1900 if (tevent_req_error(req, err)) {
1904 tevent_req_done(req);
1906 tevent_req_post(req, ev);
1910 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1915 ret = tsocket_simple_int_recv(req, perrno);
1917 tevent_req_received(req);
1921 static const struct tstream_context_ops tstream_bsd_ops = {
1924 .pending_bytes = tstream_bsd_pending_bytes,
1926 .readv_send = tstream_bsd_readv_send,
1927 .readv_recv = tstream_bsd_readv_recv,
1929 .writev_send = tstream_bsd_writev_send,
1930 .writev_recv = tstream_bsd_writev_recv,
1932 .disconnect_send = tstream_bsd_disconnect_send,
1933 .disconnect_recv = tstream_bsd_disconnect_recv,
1936 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1938 TALLOC_FREE(bsds->fde);
1939 if (bsds->fd != -1) {
1946 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1948 struct tstream_context **_stream,
1949 const char *location)
1951 struct tstream_context *stream;
1952 struct tstream_bsd *bsds;
1954 stream = tstream_context_create(mem_ctx,
1964 talloc_set_destructor(bsds, tstream_bsd_destructor);
1970 struct tstream_bsd_connect_state {
1972 struct tevent_fd *fde;
1973 struct tstream_conext *stream;
1976 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1978 TALLOC_FREE(state->fde);
1979 if (state->fd != -1) {
1987 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1988 struct tevent_fd *fde,
1990 void *private_data);
1992 static struct tevent_req * tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
1993 struct tevent_context *ev,
1995 const struct tsocket_address *local,
1996 const struct tsocket_address *remote)
1998 struct tevent_req *req;
1999 struct tstream_bsd_connect_state *state;
2000 struct tsocket_address_bsd *lbsda =
2001 talloc_get_type_abort(local->private_data,
2002 struct tsocket_address_bsd);
2003 struct tsocket_address_bsd *rbsda =
2004 talloc_get_type_abort(remote->private_data,
2005 struct tsocket_address_bsd);
2009 bool do_bind = false;
2010 bool do_reuseaddr = false;
2011 bool do_ipv6only = false;
2012 bool is_inet = false;
2013 int sa_fam = lbsda->u.sa.sa_family;
2015 req = tevent_req_create(mem_ctx, &state,
2016 struct tstream_bsd_connect_state);
2023 talloc_set_destructor(state, tstream_bsd_connect_destructor);
2025 /* give the wrappers a chance to report an error */
2026 if (sys_errno != 0) {
2027 tevent_req_error(req, sys_errno);
2031 switch (lbsda->u.sa.sa_family) {
2033 if (lbsda->u.un.sun_path[0] != 0) {
2034 do_reuseaddr = true;
2039 if (lbsda->u.in.sin_port != 0) {
2040 do_reuseaddr = true;
2043 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
2050 if (lbsda->u.in6.sin6_port != 0) {
2051 do_reuseaddr = true;
2054 if (memcmp(&in6addr_any,
2055 &lbsda->u.in6.sin6_addr,
2056 sizeof(in6addr_any)) != 0) {
2064 tevent_req_error(req, EINVAL);
2068 if (!do_bind && is_inet) {
2069 sa_fam = rbsda->u.sa.sa_family;
2072 do_ipv6only = false;
2082 state->fd = socket(sa_fam, SOCK_STREAM, 0);
2083 if (state->fd == -1) {
2084 tevent_req_error(req, errno);
2088 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
2089 if (state->fd == -1) {
2090 tevent_req_error(req, errno);
2098 ret = setsockopt(state->fd, IPPROTO_IPV6, IPV6_V6ONLY,
2099 (const void *)&val, sizeof(val));
2101 tevent_req_error(req, errno);
2110 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
2111 (const void *)&val, sizeof(val));
2113 tevent_req_error(req, errno);
2119 ret = bind(state->fd, &lbsda->u.sa, lbsda->sa_socklen);
2121 tevent_req_error(req, errno);
2126 if (rbsda->u.sa.sa_family != sa_fam) {
2127 tevent_req_error(req, EINVAL);
2131 ret = connect(state->fd, &rbsda->u.sa, rbsda->sa_socklen);
2132 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2137 if (tevent_req_error(req, err)) {
2141 tevent_req_done(req);
2145 state->fde = tevent_add_fd(ev, state,
2147 TEVENT_FD_READ | TEVENT_FD_WRITE,
2148 tstream_bsd_connect_fde_handler,
2150 if (tevent_req_nomem(state->fde, req)) {
2157 tevent_req_post(req, ev);
2161 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
2162 struct tevent_fd *fde,
2166 struct tevent_req *req = talloc_get_type_abort(private_data,
2168 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2169 struct tstream_bsd_connect_state);
2172 socklen_t len = sizeof(error);
2176 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
2183 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2188 if (tevent_req_error(req, err)) {
2192 tevent_req_done(req);
2195 static int tstream_bsd_connect_recv(struct tevent_req *req,
2197 TALLOC_CTX *mem_ctx,
2198 struct tstream_context **stream,
2199 const char *location)
2201 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2202 struct tstream_bsd_connect_state);
2205 ret = tsocket_simple_int_recv(req, perrno);
2207 ret = _tstream_bsd_existing_socket(mem_ctx,
2215 TALLOC_FREE(state->fde);
2220 tevent_req_received(req);
2224 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2225 struct tevent_context *ev,
2226 const struct tsocket_address *local,
2227 const struct tsocket_address *remote)
2229 struct tsocket_address_bsd *lbsda =
2230 talloc_get_type_abort(local->private_data,
2231 struct tsocket_address_bsd);
2232 struct tevent_req *req;
2235 switch (lbsda->u.sa.sa_family) {
2247 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2252 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2254 TALLOC_CTX *mem_ctx,
2255 struct tstream_context **stream,
2256 const char *location)
2258 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2261 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2262 struct tevent_context *ev,
2263 const struct tsocket_address *local,
2264 const struct tsocket_address *remote)
2266 struct tsocket_address_bsd *lbsda =
2267 talloc_get_type_abort(local->private_data,
2268 struct tsocket_address_bsd);
2269 struct tevent_req *req;
2272 switch (lbsda->u.sa.sa_family) {
2280 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2285 int _tstream_unix_connect_recv(struct tevent_req *req,
2287 TALLOC_CTX *mem_ctx,
2288 struct tstream_context **stream,
2289 const char *location)
2291 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2294 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2295 struct tstream_context **_stream1,
2296 TALLOC_CTX *mem_ctx2,
2297 struct tstream_context **_stream2,
2298 const char *location)
2304 struct tstream_context *stream1 = NULL;
2305 struct tstream_context *stream2 = NULL;
2307 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2314 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2316 int sys_errno = errno;
2322 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2324 int sys_errno = errno;
2330 ret = _tstream_bsd_existing_socket(mem_ctx1,
2335 int sys_errno = errno;
2342 ret = _tstream_bsd_existing_socket(mem_ctx2,
2347 int sys_errno = errno;
2348 talloc_free(stream1);
2354 *_stream1 = stream1;
2355 *_stream2 = stream2;