2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan Metzmacher 2009
6 ** NOTE! The following LGPL license applies to the tsocket
7 ** library. This does NOT imply that all of Samba is released
10 This library is free software; you can redistribute it and/or
11 modify it under the terms of the GNU Lesser General Public
12 License as published by the Free Software Foundation; either
13 version 3 of the License, or (at your option) any later version.
15 This library is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public
21 License along with this library; if not, see <http://www.gnu.org/licenses/>.
25 #include "system/filesys.h"
26 #include "system/network.h"
28 #include "tsocket_internal.h"
30 static int tsocket_bsd_error_from_errno(int ret,
48 if (sys_errno == EINTR) {
53 if (sys_errno == EINPROGRESS) {
58 if (sys_errno == EAGAIN) {
64 if (sys_errno == EWOULDBLOCK) {
73 static int tsocket_bsd_common_prepare_fd(int fd, bool high_fd)
86 /* first make a fd >= 3 */
96 for (i=0; i<num_fds; i++) {
105 /* fd should be nonblocking. */
108 #define FLAG_TO_SET O_NONBLOCK
111 #define FLAG_TO_SET O_NDELAY
113 #define FLAG_TO_SET FNDELAY
117 if ((flags = fcntl(fd, F_GETFL)) == -1) {
121 flags |= FLAG_TO_SET;
122 if (fcntl(fd, F_SETFL, flags) == -1) {
128 /* fd should be closed on exec() */
130 result = flags = fcntl(fd, F_GETFD, 0);
133 result = fcntl(fd, F_SETFD, flags);
150 static ssize_t tsocket_bsd_pending(int fd)
156 ret = ioctl(fd, FIONREAD, &value);
162 /* this should not be reached */
175 * if no data is available check if the socket is in error state. For
176 * dgram sockets it's the way to return ICMP error messages of
177 * connected sockets to the caller.
179 ret = getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &len);
190 static const struct tsocket_address_ops tsocket_address_bsd_ops;
192 struct tsocket_address_bsd {
195 struct sockaddr_in in;
197 struct sockaddr_in6 in6;
199 struct sockaddr_un un;
200 struct sockaddr_storage ss;
204 int _tsocket_address_bsd_from_sockaddr(TALLOC_CTX *mem_ctx,
207 struct tsocket_address **_addr,
208 const char *location)
210 struct tsocket_address *addr;
211 struct tsocket_address_bsd *bsda;
213 if (sa_socklen < sizeof(sa->sa_family)) {
218 switch (sa->sa_family) {
220 if (sa_socklen > sizeof(struct sockaddr_un)) {
221 sa_socklen = sizeof(struct sockaddr_un);
225 if (sa_socklen < sizeof(struct sockaddr_in)) {
229 sa_socklen = sizeof(struct sockaddr_in);
233 if (sa_socklen < sizeof(struct sockaddr_in6)) {
237 sa_socklen = sizeof(struct sockaddr_in6);
241 errno = EAFNOSUPPORT;
245 if (sa_socklen > sizeof(struct sockaddr_storage)) {
250 addr = tsocket_address_create(mem_ctx,
251 &tsocket_address_bsd_ops,
253 struct tsocket_address_bsd,
262 memcpy(&bsda->u.ss, sa, sa_socklen);
268 ssize_t tsocket_address_bsd_sockaddr(const struct tsocket_address *addr,
272 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
273 struct tsocket_address_bsd);
281 switch (bsda->u.sa.sa_family) {
283 rlen = sizeof(struct sockaddr_un);
286 rlen = sizeof(struct sockaddr_in);
290 rlen = sizeof(struct sockaddr_in6);
294 errno = EAFNOSUPPORT;
298 if (sa_socklen < rlen) {
303 if (sa_socklen > sizeof(struct sockaddr_storage)) {
304 memset(sa, 0, sa_socklen);
305 sa_socklen = sizeof(struct sockaddr_storage);
308 memcpy(sa, &bsda->u.ss, sa_socklen);
312 int _tsocket_address_inet_from_strings(TALLOC_CTX *mem_ctx,
316 struct tsocket_address **_addr,
317 const char *location)
319 struct addrinfo hints;
320 struct addrinfo *result = NULL;
326 * we use SOCKET_STREAM here to get just one result
327 * back from getaddrinfo().
329 hints.ai_socktype = SOCK_STREAM;
330 hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
332 if (strcasecmp(fam, "ip") == 0) {
333 hints.ai_family = AF_UNSPEC;
341 } else if (strcasecmp(fam, "ipv4") == 0) {
342 hints.ai_family = AF_INET;
347 } else if (strcasecmp(fam, "ipv6") == 0) {
348 hints.ai_family = AF_INET6;
354 errno = EAFNOSUPPORT;
358 snprintf(port_str, sizeof(port_str) - 1, "%u", port);
360 ret = getaddrinfo(addr, port_str, &hints, &result);
371 if (result->ai_socktype != SOCK_STREAM) {
377 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
385 freeaddrinfo(result);
390 char *tsocket_address_inet_addr_string(const struct tsocket_address *addr,
393 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
394 struct tsocket_address_bsd);
395 char addr_str[INET6_ADDRSTRLEN+1];
403 switch (bsda->u.sa.sa_family) {
405 str = inet_ntop(bsda->u.in.sin_family,
406 &bsda->u.in.sin_addr,
407 addr_str, sizeof(addr_str));
411 str = inet_ntop(bsda->u.in6.sin6_family,
412 &bsda->u.in6.sin6_addr,
413 addr_str, sizeof(addr_str));
425 return talloc_strdup(mem_ctx, str);
428 uint16_t tsocket_address_inet_port(const struct tsocket_address *addr)
430 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
431 struct tsocket_address_bsd);
439 switch (bsda->u.sa.sa_family) {
441 port = ntohs(bsda->u.in.sin_port);
445 port = ntohs(bsda->u.in6.sin6_port);
456 int tsocket_address_inet_set_port(struct tsocket_address *addr,
459 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
460 struct tsocket_address_bsd);
467 switch (bsda->u.sa.sa_family) {
469 bsda->u.in.sin_port = htons(port);
473 bsda->u.in6.sin6_port = htons(port);
484 int _tsocket_address_unix_from_path(TALLOC_CTX *mem_ctx,
486 struct tsocket_address **_addr,
487 const char *location)
489 struct sockaddr_un un;
497 if (strlen(path) > sizeof(un.sun_path)-1) {
498 errno = ENAMETOOLONG;
503 un.sun_family = AF_UNIX;
504 strncpy(un.sun_path, path, sizeof(un.sun_path)-1);
506 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
507 (struct sockaddr *)p,
515 char *tsocket_address_unix_path(const struct tsocket_address *addr,
518 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
519 struct tsocket_address_bsd);
527 switch (bsda->u.sa.sa_family) {
529 str = bsda->u.un.sun_path;
536 return talloc_strdup(mem_ctx, str);
539 static char *tsocket_address_bsd_string(const struct tsocket_address *addr,
542 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
543 struct tsocket_address_bsd);
546 const char *prefix = NULL;
549 switch (bsda->u.sa.sa_family) {
551 return talloc_asprintf(mem_ctx, "unix:%s",
552 bsda->u.un.sun_path);
566 addr_str = tsocket_address_inet_addr_string(addr, mem_ctx);
571 port = tsocket_address_inet_port(addr);
573 str = talloc_asprintf(mem_ctx, "%s:%s:%u",
574 prefix, addr_str, port);
575 talloc_free(addr_str);
580 static struct tsocket_address *tsocket_address_bsd_copy(const struct tsocket_address *addr,
582 const char *location)
584 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
585 struct tsocket_address_bsd);
586 struct tsocket_address *copy;
589 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
601 static const struct tsocket_address_ops tsocket_address_bsd_ops = {
603 .string = tsocket_address_bsd_string,
604 .copy = tsocket_address_bsd_copy,
611 struct tevent_fd *fde;
613 void *readable_private;
614 void (*readable_handler)(void *private_data);
615 void *writeable_private;
616 void (*writeable_handler)(void *private_data);
619 static void tdgram_bsd_fde_handler(struct tevent_context *ev,
620 struct tevent_fd *fde,
624 struct tdgram_bsd *bsds = talloc_get_type_abort(private_data,
627 if (flags & TEVENT_FD_WRITE) {
628 bsds->writeable_handler(bsds->writeable_private);
631 if (flags & TEVENT_FD_READ) {
632 if (!bsds->readable_handler) {
633 TEVENT_FD_NOT_READABLE(bsds->fde);
636 bsds->readable_handler(bsds->readable_private);
641 static int tdgram_bsd_set_readable_handler(struct tdgram_bsd *bsds,
642 struct tevent_context *ev,
643 void (*handler)(void *private_data),
651 if (!bsds->readable_handler) {
654 bsds->readable_handler = NULL;
655 bsds->readable_private = NULL;
660 /* read and write must use the same tevent_context */
661 if (bsds->event_ptr != ev) {
662 if (bsds->readable_handler || bsds->writeable_handler) {
666 bsds->event_ptr = NULL;
667 TALLOC_FREE(bsds->fde);
670 if (tevent_fd_get_flags(bsds->fde) == 0) {
671 TALLOC_FREE(bsds->fde);
673 bsds->fde = tevent_add_fd(ev, bsds,
674 bsds->fd, TEVENT_FD_READ,
675 tdgram_bsd_fde_handler,
682 /* cache the event context we're running on */
683 bsds->event_ptr = ev;
684 } else if (!bsds->readable_handler) {
685 TEVENT_FD_READABLE(bsds->fde);
688 bsds->readable_handler = handler;
689 bsds->readable_private = private_data;
694 static int tdgram_bsd_set_writeable_handler(struct tdgram_bsd *bsds,
695 struct tevent_context *ev,
696 void (*handler)(void *private_data),
704 if (!bsds->writeable_handler) {
707 bsds->writeable_handler = NULL;
708 bsds->writeable_private = NULL;
709 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
714 /* read and write must use the same tevent_context */
715 if (bsds->event_ptr != ev) {
716 if (bsds->readable_handler || bsds->writeable_handler) {
720 bsds->event_ptr = NULL;
721 TALLOC_FREE(bsds->fde);
724 if (tevent_fd_get_flags(bsds->fde) == 0) {
725 TALLOC_FREE(bsds->fde);
727 bsds->fde = tevent_add_fd(ev, bsds,
728 bsds->fd, TEVENT_FD_WRITE,
729 tdgram_bsd_fde_handler,
736 /* cache the event context we're running on */
737 bsds->event_ptr = ev;
738 } else if (!bsds->writeable_handler) {
739 TEVENT_FD_WRITEABLE(bsds->fde);
742 bsds->writeable_handler = handler;
743 bsds->writeable_private = private_data;
748 struct tdgram_bsd_recvfrom_state {
749 struct tdgram_context *dgram;
753 struct tsocket_address *src;
756 static int tdgram_bsd_recvfrom_destructor(struct tdgram_bsd_recvfrom_state *state)
758 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
761 tdgram_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
766 static void tdgram_bsd_recvfrom_handler(void *private_data);
768 static struct tevent_req *tdgram_bsd_recvfrom_send(TALLOC_CTX *mem_ctx,
769 struct tevent_context *ev,
770 struct tdgram_context *dgram)
772 struct tevent_req *req;
773 struct tdgram_bsd_recvfrom_state *state;
774 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
777 req = tevent_req_create(mem_ctx, &state,
778 struct tdgram_bsd_recvfrom_state);
783 state->dgram = dgram;
788 talloc_set_destructor(state, tdgram_bsd_recvfrom_destructor);
790 if (bsds->fd == -1) {
791 tevent_req_error(req, ENOTCONN);
796 * this is a fast path, not waiting for the
797 * socket to become explicit readable gains
798 * about 10%-20% performance in benchmark tests.
800 tdgram_bsd_recvfrom_handler(req);
801 if (!tevent_req_is_in_progress(req)) {
805 ret = tdgram_bsd_set_readable_handler(bsds, ev,
806 tdgram_bsd_recvfrom_handler,
809 tevent_req_error(req, errno);
816 tevent_req_post(req, ev);
820 static void tdgram_bsd_recvfrom_handler(void *private_data)
822 struct tevent_req *req = talloc_get_type_abort(private_data,
824 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
825 struct tdgram_bsd_recvfrom_state);
826 struct tdgram_context *dgram = state->dgram;
827 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
828 struct tsocket_address_bsd *bsda;
830 struct sockaddr *sa = NULL;
831 socklen_t sa_socklen = 0;
835 ret = tsocket_bsd_pending(bsds->fd);
840 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
845 if (tevent_req_error(req, err)) {
849 state->buf = talloc_array(state, uint8_t, ret);
850 if (tevent_req_nomem(state->buf, req)) {
855 state->src = tsocket_address_create(state,
856 &tsocket_address_bsd_ops,
858 struct tsocket_address_bsd,
859 __location__ "bsd_recvfrom");
860 if (tevent_req_nomem(state->src, req)) {
867 sa_socklen = sizeof(bsda->u.ss);
869 * for unix sockets we can't use the size of sockaddr_storage
870 * we would get EINVAL
872 if (bsda->u.sa.sa_family == AF_UNIX) {
873 sa_socklen = sizeof(bsda->u.un);
876 ret = recvfrom(bsds->fd, state->buf, state->len, 0, sa, &sa_socklen);
877 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
882 if (tevent_req_error(req, err)) {
887 * some systems too much bytes in tsocket_bsd_pending()
888 * the return value includes some IP/UDP header bytes
890 state->buf = talloc_realloc(state, state->buf, uint8_t, ret);
891 if (tevent_req_nomem(state->buf, req)) {
896 tevent_req_done(req);
899 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
903 struct tsocket_address **src)
905 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
906 struct tdgram_bsd_recvfrom_state);
909 ret = tsocket_simple_int_recv(req, perrno);
911 *buf = talloc_move(mem_ctx, &state->buf);
914 *src = talloc_move(mem_ctx, &state->src);
918 tevent_req_received(req);
922 struct tdgram_bsd_sendto_state {
923 struct tdgram_context *dgram;
927 const struct tsocket_address *dst;
932 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
934 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
937 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
942 static void tdgram_bsd_sendto_handler(void *private_data);
944 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
945 struct tevent_context *ev,
946 struct tdgram_context *dgram,
949 const struct tsocket_address *dst)
951 struct tevent_req *req;
952 struct tdgram_bsd_sendto_state *state;
953 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
956 req = tevent_req_create(mem_ctx, &state,
957 struct tdgram_bsd_sendto_state);
962 state->dgram = dgram;
968 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
970 if (bsds->fd == -1) {
971 tevent_req_error(req, ENOTCONN);
976 * this is a fast path, not waiting for the
977 * socket to become explicit writeable gains
978 * about 10%-20% performance in benchmark tests.
980 tdgram_bsd_sendto_handler(req);
981 if (!tevent_req_is_in_progress(req)) {
985 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
986 tdgram_bsd_sendto_handler,
989 tevent_req_error(req, errno);
996 tevent_req_post(req, ev);
1000 static void tdgram_bsd_sendto_handler(void *private_data)
1002 struct tevent_req *req = talloc_get_type_abort(private_data,
1004 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1005 struct tdgram_bsd_sendto_state);
1006 struct tdgram_context *dgram = state->dgram;
1007 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1008 struct sockaddr *sa = NULL;
1009 socklen_t sa_socklen = 0;
1015 struct tsocket_address_bsd *bsda =
1016 talloc_get_type(state->dst->private_data,
1017 struct tsocket_address_bsd);
1020 sa_socklen = sizeof(bsda->u.ss);
1022 * for unix sockets we can't use the size of sockaddr_storage
1023 * we would get EINVAL
1025 if (bsda->u.sa.sa_family == AF_UNIX) {
1026 sa_socklen = sizeof(bsda->u.un);
1030 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_socklen);
1031 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1036 if (tevent_req_error(req, err)) {
1042 tevent_req_done(req);
1045 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
1047 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1048 struct tdgram_bsd_sendto_state);
1051 ret = tsocket_simple_int_recv(req, perrno);
1056 tevent_req_received(req);
1060 struct tdgram_bsd_disconnect_state {
1064 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1065 struct tevent_context *ev,
1066 struct tdgram_context *dgram)
1068 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1069 struct tevent_req *req;
1070 struct tdgram_bsd_disconnect_state *state;
1075 req = tevent_req_create(mem_ctx, &state,
1076 struct tdgram_bsd_disconnect_state);
1081 if (bsds->fd == -1) {
1082 tevent_req_error(req, ENOTCONN);
1086 ret = close(bsds->fd);
1088 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1089 if (tevent_req_error(req, err)) {
1093 tevent_req_done(req);
1095 tevent_req_post(req, ev);
1099 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1104 ret = tsocket_simple_int_recv(req, perrno);
1106 tevent_req_received(req);
1110 static const struct tdgram_context_ops tdgram_bsd_ops = {
1113 .recvfrom_send = tdgram_bsd_recvfrom_send,
1114 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1116 .sendto_send = tdgram_bsd_sendto_send,
1117 .sendto_recv = tdgram_bsd_sendto_recv,
1119 .disconnect_send = tdgram_bsd_disconnect_send,
1120 .disconnect_recv = tdgram_bsd_disconnect_recv,
1123 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1125 TALLOC_FREE(bsds->fde);
1126 if (bsds->fd != -1) {
1133 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1134 const struct tsocket_address *remote,
1136 TALLOC_CTX *mem_ctx,
1137 struct tdgram_context **_dgram,
1138 const char *location)
1140 struct tsocket_address_bsd *lbsda =
1141 talloc_get_type_abort(local->private_data,
1142 struct tsocket_address_bsd);
1143 struct tsocket_address_bsd *rbsda = NULL;
1144 struct tdgram_context *dgram;
1145 struct tdgram_bsd *bsds;
1148 bool do_bind = false;
1149 bool do_reuseaddr = false;
1150 bool do_ipv6only = false;
1151 bool is_inet = false;
1152 int sa_fam = lbsda->u.sa.sa_family;
1153 socklen_t sa_socklen = sizeof(lbsda->u.ss);
1156 rbsda = talloc_get_type_abort(remote->private_data,
1157 struct tsocket_address_bsd);
1160 switch (lbsda->u.sa.sa_family) {
1166 if (lbsda->u.un.sun_path[0] != 0) {
1167 do_reuseaddr = true;
1171 * for unix sockets we can't use the size of sockaddr_storage
1172 * we would get EINVAL
1174 sa_socklen = sizeof(lbsda->u.un);
1177 if (lbsda->u.in.sin_port != 0) {
1178 do_reuseaddr = true;
1181 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
1185 sa_socklen = sizeof(rbsda->u.in);
1189 if (lbsda->u.in6.sin6_port != 0) {
1190 do_reuseaddr = true;
1193 if (memcmp(&in6addr_any,
1194 &lbsda->u.in6.sin6_addr,
1195 sizeof(in6addr_any)) != 0) {
1199 sa_socklen = sizeof(rbsda->u.in6);
1208 if (!do_bind && is_inet && rbsda) {
1209 sa_fam = rbsda->u.sa.sa_family;
1212 sa_socklen = sizeof(rbsda->u.in);
1213 do_ipv6only = false;
1217 sa_socklen = sizeof(rbsda->u.in6);
1224 fd = socket(sa_fam, SOCK_DGRAM, 0);
1229 fd = tsocket_bsd_common_prepare_fd(fd, true);
1234 dgram = tdgram_context_create(mem_ctx,
1240 int saved_errno = errno;
1242 errno = saved_errno;
1247 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1253 ret = setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY,
1254 (const void *)&val, sizeof(val));
1256 int saved_errno = errno;
1258 errno = saved_errno;
1267 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1268 (const void *)&val, sizeof(val));
1270 int saved_errno = errno;
1272 errno = saved_errno;
1280 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1281 (const void *)&val, sizeof(val));
1283 int saved_errno = errno;
1285 errno = saved_errno;
1291 ret = bind(fd, &lbsda->u.sa, sa_socklen);
1293 int saved_errno = errno;
1295 errno = saved_errno;
1301 if (rbsda->u.sa.sa_family != sa_fam) {
1307 ret = connect(fd, &rbsda->u.sa, sa_socklen);
1309 int saved_errno = errno;
1311 errno = saved_errno;
1320 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
1321 const struct tsocket_address *remote,
1322 TALLOC_CTX *mem_ctx,
1323 struct tdgram_context **dgram,
1324 const char *location)
1326 struct tsocket_address_bsd *lbsda =
1327 talloc_get_type_abort(local->private_data,
1328 struct tsocket_address_bsd);
1331 switch (lbsda->u.sa.sa_family) {
1343 ret = tdgram_bsd_dgram_socket(local, remote, false,
1344 mem_ctx, dgram, location);
1349 int _tdgram_unix_socket(const struct tsocket_address *local,
1350 const struct tsocket_address *remote,
1351 TALLOC_CTX *mem_ctx,
1352 struct tdgram_context **dgram,
1353 const char *location)
1355 struct tsocket_address_bsd *lbsda =
1356 talloc_get_type_abort(local->private_data,
1357 struct tsocket_address_bsd);
1360 switch (lbsda->u.sa.sa_family) {
1368 ret = tdgram_bsd_dgram_socket(local, remote, false,
1369 mem_ctx, dgram, location);
1374 struct tstream_bsd {
1378 struct tevent_fd *fde;
1380 void *readable_private;
1381 void (*readable_handler)(void *private_data);
1382 void *writeable_private;
1383 void (*writeable_handler)(void *private_data);
1386 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1387 struct tevent_fd *fde,
1391 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1392 struct tstream_bsd);
1394 if (flags & TEVENT_FD_WRITE) {
1395 bsds->writeable_handler(bsds->writeable_private);
1398 if (flags & TEVENT_FD_READ) {
1399 if (!bsds->readable_handler) {
1400 if (bsds->writeable_handler) {
1401 bsds->writeable_handler(bsds->writeable_private);
1404 TEVENT_FD_NOT_READABLE(bsds->fde);
1407 bsds->readable_handler(bsds->readable_private);
1412 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1413 struct tevent_context *ev,
1414 void (*handler)(void *private_data),
1422 if (!bsds->readable_handler) {
1425 bsds->readable_handler = NULL;
1426 bsds->readable_private = NULL;
1431 /* read and write must use the same tevent_context */
1432 if (bsds->event_ptr != ev) {
1433 if (bsds->readable_handler || bsds->writeable_handler) {
1437 bsds->event_ptr = NULL;
1438 TALLOC_FREE(bsds->fde);
1441 if (tevent_fd_get_flags(bsds->fde) == 0) {
1442 TALLOC_FREE(bsds->fde);
1444 bsds->fde = tevent_add_fd(ev, bsds,
1445 bsds->fd, TEVENT_FD_READ,
1446 tstream_bsd_fde_handler,
1453 /* cache the event context we're running on */
1454 bsds->event_ptr = ev;
1455 } else if (!bsds->readable_handler) {
1456 TEVENT_FD_READABLE(bsds->fde);
1459 bsds->readable_handler = handler;
1460 bsds->readable_private = private_data;
1465 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1466 struct tevent_context *ev,
1467 void (*handler)(void *private_data),
1475 if (!bsds->writeable_handler) {
1478 bsds->writeable_handler = NULL;
1479 bsds->writeable_private = NULL;
1480 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
1485 /* read and write must use the same tevent_context */
1486 if (bsds->event_ptr != ev) {
1487 if (bsds->readable_handler || bsds->writeable_handler) {
1491 bsds->event_ptr = NULL;
1492 TALLOC_FREE(bsds->fde);
1495 if (tevent_fd_get_flags(bsds->fde) == 0) {
1496 TALLOC_FREE(bsds->fde);
1498 bsds->fde = tevent_add_fd(ev, bsds,
1500 TEVENT_FD_READ | TEVENT_FD_WRITE,
1501 tstream_bsd_fde_handler,
1508 /* cache the event context we're running on */
1509 bsds->event_ptr = ev;
1510 } else if (!bsds->writeable_handler) {
1511 uint16_t flags = tevent_fd_get_flags(bsds->fde);
1512 flags |= TEVENT_FD_READ | TEVENT_FD_WRITE;
1513 tevent_fd_set_flags(bsds->fde, flags);
1516 bsds->writeable_handler = handler;
1517 bsds->writeable_private = private_data;
1522 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1524 struct tstream_bsd *bsds = tstream_context_data(stream,
1525 struct tstream_bsd);
1528 if (bsds->fd == -1) {
1533 ret = tsocket_bsd_pending(bsds->fd);
1538 struct tstream_bsd_readv_state {
1539 struct tstream_context *stream;
1541 struct iovec *vector;
1547 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1549 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1550 struct tstream_bsd);
1552 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1557 static void tstream_bsd_readv_handler(void *private_data);
1559 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1560 struct tevent_context *ev,
1561 struct tstream_context *stream,
1562 struct iovec *vector,
1565 struct tevent_req *req;
1566 struct tstream_bsd_readv_state *state;
1567 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1570 req = tevent_req_create(mem_ctx, &state,
1571 struct tstream_bsd_readv_state);
1576 state->stream = stream;
1577 /* we make a copy of the vector so that we can modify it */
1578 state->vector = talloc_array(state, struct iovec, count);
1579 if (tevent_req_nomem(state->vector, req)) {
1582 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1583 state->count = count;
1586 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1588 if (bsds->fd == -1) {
1589 tevent_req_error(req, ENOTCONN);
1594 * this is a fast path, not waiting for the
1595 * socket to become explicit readable gains
1596 * about 10%-20% performance in benchmark tests.
1598 tstream_bsd_readv_handler(req);
1599 if (!tevent_req_is_in_progress(req)) {
1603 ret = tstream_bsd_set_readable_handler(bsds, ev,
1604 tstream_bsd_readv_handler,
1607 tevent_req_error(req, errno);
1614 tevent_req_post(req, ev);
1618 static void tstream_bsd_readv_handler(void *private_data)
1620 struct tevent_req *req = talloc_get_type_abort(private_data,
1622 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1623 struct tstream_bsd_readv_state);
1624 struct tstream_context *stream = state->stream;
1625 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1630 ret = readv(bsds->fd, state->vector, state->count);
1632 /* propagate end of file */
1633 tevent_req_error(req, EPIPE);
1636 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1641 if (tevent_req_error(req, err)) {
1648 if (ret < state->vector[0].iov_len) {
1650 base = (uint8_t *)state->vector[0].iov_base;
1652 state->vector[0].iov_base = base;
1653 state->vector[0].iov_len -= ret;
1656 ret -= state->vector[0].iov_len;
1662 * there're maybe some empty vectors at the end
1663 * which we need to skip, otherwise we would get
1664 * ret == 0 from the readv() call and return EPIPE
1666 while (state->count > 0) {
1667 if (state->vector[0].iov_len > 0) {
1674 if (state->count > 0) {
1675 /* we have more to read */
1679 tevent_req_done(req);
1682 static int tstream_bsd_readv_recv(struct tevent_req *req,
1685 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1686 struct tstream_bsd_readv_state);
1689 ret = tsocket_simple_int_recv(req, perrno);
1694 tevent_req_received(req);
1698 struct tstream_bsd_writev_state {
1699 struct tstream_context *stream;
1701 struct iovec *vector;
1707 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1709 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1710 struct tstream_bsd);
1712 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1717 static void tstream_bsd_writev_handler(void *private_data);
1719 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1720 struct tevent_context *ev,
1721 struct tstream_context *stream,
1722 const struct iovec *vector,
1725 struct tevent_req *req;
1726 struct tstream_bsd_writev_state *state;
1727 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1730 req = tevent_req_create(mem_ctx, &state,
1731 struct tstream_bsd_writev_state);
1736 state->stream = stream;
1737 /* we make a copy of the vector so that we can modify it */
1738 state->vector = talloc_array(state, struct iovec, count);
1739 if (tevent_req_nomem(state->vector, req)) {
1742 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1743 state->count = count;
1746 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1748 if (bsds->fd == -1) {
1749 tevent_req_error(req, ENOTCONN);
1754 * this is a fast path, not waiting for the
1755 * socket to become explicit writeable gains
1756 * about 10%-20% performance in benchmark tests.
1758 tstream_bsd_writev_handler(req);
1759 if (!tevent_req_is_in_progress(req)) {
1763 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1764 tstream_bsd_writev_handler,
1767 tevent_req_error(req, errno);
1774 tevent_req_post(req, ev);
1778 static void tstream_bsd_writev_handler(void *private_data)
1780 struct tevent_req *req = talloc_get_type_abort(private_data,
1782 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1783 struct tstream_bsd_writev_state);
1784 struct tstream_context *stream = state->stream;
1785 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1790 ret = writev(bsds->fd, state->vector, state->count);
1792 /* propagate end of file */
1793 tevent_req_error(req, EPIPE);
1796 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1801 if (tevent_req_error(req, err)) {
1808 if (ret < state->vector[0].iov_len) {
1810 base = (uint8_t *)state->vector[0].iov_base;
1812 state->vector[0].iov_base = base;
1813 state->vector[0].iov_len -= ret;
1816 ret -= state->vector[0].iov_len;
1822 * there're maybe some empty vectors at the end
1823 * which we need to skip, otherwise we would get
1824 * ret == 0 from the writev() call and return EPIPE
1826 while (state->count > 0) {
1827 if (state->vector[0].iov_len > 0) {
1834 if (state->count > 0) {
1835 /* we have more to read */
1839 tevent_req_done(req);
1842 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1844 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1845 struct tstream_bsd_writev_state);
1848 ret = tsocket_simple_int_recv(req, perrno);
1853 tevent_req_received(req);
1857 struct tstream_bsd_disconnect_state {
1861 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1862 struct tevent_context *ev,
1863 struct tstream_context *stream)
1865 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1866 struct tevent_req *req;
1867 struct tstream_bsd_disconnect_state *state;
1872 req = tevent_req_create(mem_ctx, &state,
1873 struct tstream_bsd_disconnect_state);
1878 if (bsds->fd == -1) {
1879 tevent_req_error(req, ENOTCONN);
1883 ret = close(bsds->fd);
1885 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1886 if (tevent_req_error(req, err)) {
1890 tevent_req_done(req);
1892 tevent_req_post(req, ev);
1896 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1901 ret = tsocket_simple_int_recv(req, perrno);
1903 tevent_req_received(req);
1907 static const struct tstream_context_ops tstream_bsd_ops = {
1910 .pending_bytes = tstream_bsd_pending_bytes,
1912 .readv_send = tstream_bsd_readv_send,
1913 .readv_recv = tstream_bsd_readv_recv,
1915 .writev_send = tstream_bsd_writev_send,
1916 .writev_recv = tstream_bsd_writev_recv,
1918 .disconnect_send = tstream_bsd_disconnect_send,
1919 .disconnect_recv = tstream_bsd_disconnect_recv,
1922 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1924 TALLOC_FREE(bsds->fde);
1925 if (bsds->fd != -1) {
1932 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1934 struct tstream_context **_stream,
1935 const char *location)
1937 struct tstream_context *stream;
1938 struct tstream_bsd *bsds;
1940 stream = tstream_context_create(mem_ctx,
1950 talloc_set_destructor(bsds, tstream_bsd_destructor);
1956 struct tstream_bsd_connect_state {
1958 struct tevent_fd *fde;
1959 struct tstream_conext *stream;
1962 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1964 TALLOC_FREE(state->fde);
1965 if (state->fd != -1) {
1973 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1974 struct tevent_fd *fde,
1976 void *private_data);
1978 static struct tevent_req * tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
1979 struct tevent_context *ev,
1981 const struct tsocket_address *local,
1982 const struct tsocket_address *remote)
1984 struct tevent_req *req;
1985 struct tstream_bsd_connect_state *state;
1986 struct tsocket_address_bsd *lbsda =
1987 talloc_get_type_abort(local->private_data,
1988 struct tsocket_address_bsd);
1989 struct tsocket_address_bsd *rbsda =
1990 talloc_get_type_abort(remote->private_data,
1991 struct tsocket_address_bsd);
1995 bool do_bind = false;
1996 bool do_reuseaddr = false;
1997 bool do_ipv6only = false;
1998 bool is_inet = false;
1999 int sa_fam = lbsda->u.sa.sa_family;
2000 socklen_t sa_socklen = sizeof(rbsda->u.ss);
2002 req = tevent_req_create(mem_ctx, &state,
2003 struct tstream_bsd_connect_state);
2010 talloc_set_destructor(state, tstream_bsd_connect_destructor);
2012 /* give the wrappers a chance to report an error */
2013 if (sys_errno != 0) {
2014 tevent_req_error(req, sys_errno);
2018 switch (lbsda->u.sa.sa_family) {
2020 if (lbsda->u.un.sun_path[0] != 0) {
2021 do_reuseaddr = true;
2025 * for unix sockets we can't use the size of sockaddr_storage
2026 * we would get EINVAL
2028 sa_socklen = sizeof(rbsda->u.un);
2031 if (lbsda->u.in.sin_port != 0) {
2032 do_reuseaddr = true;
2035 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
2039 sa_socklen = sizeof(rbsda->u.in);
2043 if (lbsda->u.in6.sin6_port != 0) {
2044 do_reuseaddr = true;
2047 if (memcmp(&in6addr_any,
2048 &lbsda->u.in6.sin6_addr,
2049 sizeof(in6addr_any)) != 0) {
2053 sa_socklen = sizeof(rbsda->u.in6);
2058 tevent_req_error(req, EINVAL);
2062 if (!do_bind && is_inet) {
2063 sa_fam = rbsda->u.sa.sa_family;
2066 sa_socklen = sizeof(rbsda->u.in);
2067 do_ipv6only = false;
2071 sa_socklen = sizeof(rbsda->u.in6);
2078 state->fd = socket(sa_fam, SOCK_STREAM, 0);
2079 if (state->fd == -1) {
2080 tevent_req_error(req, errno);
2084 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
2085 if (state->fd == -1) {
2086 tevent_req_error(req, errno);
2094 ret = setsockopt(state->fd, IPPROTO_IPV6, IPV6_V6ONLY,
2095 (const void *)&val, sizeof(val));
2097 tevent_req_error(req, errno);
2106 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
2107 (const void *)&val, sizeof(val));
2109 tevent_req_error(req, errno);
2115 ret = bind(state->fd, &lbsda->u.sa, sa_socklen);
2117 tevent_req_error(req, errno);
2122 if (rbsda->u.sa.sa_family != sa_fam) {
2123 tevent_req_error(req, EINVAL);
2127 ret = connect(state->fd, &rbsda->u.sa, sa_socklen);
2128 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2133 if (tevent_req_error(req, err)) {
2137 tevent_req_done(req);
2141 state->fde = tevent_add_fd(ev, state,
2143 TEVENT_FD_READ | TEVENT_FD_WRITE,
2144 tstream_bsd_connect_fde_handler,
2146 if (tevent_req_nomem(state->fde, req)) {
2153 tevent_req_post(req, ev);
2157 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
2158 struct tevent_fd *fde,
2162 struct tevent_req *req = talloc_get_type_abort(private_data,
2164 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2165 struct tstream_bsd_connect_state);
2168 socklen_t len = sizeof(error);
2172 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
2179 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2184 if (tevent_req_error(req, err)) {
2188 tevent_req_done(req);
2191 static int tstream_bsd_connect_recv(struct tevent_req *req,
2193 TALLOC_CTX *mem_ctx,
2194 struct tstream_context **stream,
2195 const char *location)
2197 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2198 struct tstream_bsd_connect_state);
2201 ret = tsocket_simple_int_recv(req, perrno);
2203 ret = _tstream_bsd_existing_socket(mem_ctx,
2211 TALLOC_FREE(state->fde);
2216 tevent_req_received(req);
2220 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2221 struct tevent_context *ev,
2222 const struct tsocket_address *local,
2223 const struct tsocket_address *remote)
2225 struct tsocket_address_bsd *lbsda =
2226 talloc_get_type_abort(local->private_data,
2227 struct tsocket_address_bsd);
2228 struct tevent_req *req;
2231 switch (lbsda->u.sa.sa_family) {
2243 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2248 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2250 TALLOC_CTX *mem_ctx,
2251 struct tstream_context **stream,
2252 const char *location)
2254 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2257 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2258 struct tevent_context *ev,
2259 const struct tsocket_address *local,
2260 const struct tsocket_address *remote)
2262 struct tsocket_address_bsd *lbsda =
2263 talloc_get_type_abort(local->private_data,
2264 struct tsocket_address_bsd);
2265 struct tevent_req *req;
2268 switch (lbsda->u.sa.sa_family) {
2276 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2281 int _tstream_unix_connect_recv(struct tevent_req *req,
2283 TALLOC_CTX *mem_ctx,
2284 struct tstream_context **stream,
2285 const char *location)
2287 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2290 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2291 struct tstream_context **_stream1,
2292 TALLOC_CTX *mem_ctx2,
2293 struct tstream_context **_stream2,
2294 const char *location)
2300 struct tstream_context *stream1 = NULL;
2301 struct tstream_context *stream2 = NULL;
2303 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2310 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2312 int sys_errno = errno;
2318 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2320 int sys_errno = errno;
2326 ret = _tstream_bsd_existing_socket(mem_ctx1,
2331 int sys_errno = errno;
2338 ret = _tstream_bsd_existing_socket(mem_ctx2,
2343 int sys_errno = errno;
2344 talloc_free(stream1);
2350 *_stream1 = stream1;
2351 *_stream2 = stream2;