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;
829 state->first_try= true;
834 talloc_set_destructor(state, tdgram_bsd_recvfrom_destructor);
836 if (bsds->fd == -1) {
837 tevent_req_error(req, ENOTCONN);
842 * this is a fast path, not waiting for the
843 * socket to become explicit readable gains
844 * about 10%-20% performance in benchmark tests.
846 tdgram_bsd_recvfrom_handler(req);
847 if (!tevent_req_is_in_progress(req)) {
851 ret = tdgram_bsd_set_readable_handler(bsds, ev,
852 tdgram_bsd_recvfrom_handler,
855 tevent_req_error(req, errno);
862 tevent_req_post(req, ev);
866 static void tdgram_bsd_recvfrom_handler(void *private_data)
868 struct tevent_req *req = talloc_get_type_abort(private_data,
870 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
871 struct tdgram_bsd_recvfrom_state);
872 struct tdgram_context *dgram = state->dgram;
873 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
874 struct tsocket_address_bsd *bsda;
879 ret = tsocket_bsd_pending(bsds->fd);
880 if (state->first_try && ret == 0) {
881 state->first_try = false;
885 state->first_try = false;
887 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
892 if (tevent_req_error(req, err)) {
896 /* note that 'ret' can be 0 here */
897 state->buf = talloc_array(state, uint8_t, ret);
898 if (tevent_req_nomem(state->buf, req)) {
903 state->src = tsocket_address_create(state,
904 &tsocket_address_bsd_ops,
906 struct tsocket_address_bsd,
907 __location__ "bsd_recvfrom");
908 if (tevent_req_nomem(state->src, req)) {
913 bsda->sa_socklen = sizeof(bsda->u.ss);
914 #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
915 bsda->u.sa.sa_len = bsda->sa_socklen;
918 ret = recvfrom(bsds->fd, state->buf, state->len, 0,
919 &bsda->u.sa, &bsda->sa_socklen);
920 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
925 if (tevent_req_error(req, err)) {
930 * Some systems (FreeBSD, see bug #7115) return too much
931 * bytes in tsocket_bsd_pending()/ioctl(fd, FIONREAD, ...),
932 * the return value includes some IP/UDP header bytes,
933 * while recvfrom() just returns the payload.
935 state->buf = talloc_realloc(state, state->buf, uint8_t, ret);
936 if (tevent_req_nomem(state->buf, req)) {
941 tevent_req_done(req);
944 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
948 struct tsocket_address **src)
950 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
951 struct tdgram_bsd_recvfrom_state);
954 ret = tsocket_simple_int_recv(req, perrno);
956 *buf = talloc_move(mem_ctx, &state->buf);
959 *src = talloc_move(mem_ctx, &state->src);
963 tevent_req_received(req);
967 struct tdgram_bsd_sendto_state {
968 struct tdgram_context *dgram;
972 const struct tsocket_address *dst;
977 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
979 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
982 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
987 static void tdgram_bsd_sendto_handler(void *private_data);
989 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
990 struct tevent_context *ev,
991 struct tdgram_context *dgram,
994 const struct tsocket_address *dst)
996 struct tevent_req *req;
997 struct tdgram_bsd_sendto_state *state;
998 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1001 req = tevent_req_create(mem_ctx, &state,
1002 struct tdgram_bsd_sendto_state);
1007 state->dgram = dgram;
1013 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
1015 if (bsds->fd == -1) {
1016 tevent_req_error(req, ENOTCONN);
1021 * this is a fast path, not waiting for the
1022 * socket to become explicit writeable gains
1023 * about 10%-20% performance in benchmark tests.
1025 tdgram_bsd_sendto_handler(req);
1026 if (!tevent_req_is_in_progress(req)) {
1030 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
1031 tdgram_bsd_sendto_handler,
1034 tevent_req_error(req, errno);
1041 tevent_req_post(req, ev);
1045 static void tdgram_bsd_sendto_handler(void *private_data)
1047 struct tevent_req *req = talloc_get_type_abort(private_data,
1049 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1050 struct tdgram_bsd_sendto_state);
1051 struct tdgram_context *dgram = state->dgram;
1052 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1053 struct sockaddr *sa = NULL;
1054 socklen_t sa_socklen = 0;
1060 struct tsocket_address_bsd *bsda =
1061 talloc_get_type(state->dst->private_data,
1062 struct tsocket_address_bsd);
1065 sa_socklen = bsda->sa_socklen;
1068 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_socklen);
1069 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1074 if (tevent_req_error(req, err)) {
1080 tevent_req_done(req);
1083 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
1085 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1086 struct tdgram_bsd_sendto_state);
1089 ret = tsocket_simple_int_recv(req, perrno);
1094 tevent_req_received(req);
1098 struct tdgram_bsd_disconnect_state {
1102 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1103 struct tevent_context *ev,
1104 struct tdgram_context *dgram)
1106 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1107 struct tevent_req *req;
1108 struct tdgram_bsd_disconnect_state *state;
1113 req = tevent_req_create(mem_ctx, &state,
1114 struct tdgram_bsd_disconnect_state);
1119 if (bsds->fd == -1) {
1120 tevent_req_error(req, ENOTCONN);
1124 TALLOC_FREE(bsds->fde);
1125 ret = close(bsds->fd);
1127 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1128 if (tevent_req_error(req, err)) {
1132 tevent_req_done(req);
1134 tevent_req_post(req, ev);
1138 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1143 ret = tsocket_simple_int_recv(req, perrno);
1145 tevent_req_received(req);
1149 static const struct tdgram_context_ops tdgram_bsd_ops = {
1152 .recvfrom_send = tdgram_bsd_recvfrom_send,
1153 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1155 .sendto_send = tdgram_bsd_sendto_send,
1156 .sendto_recv = tdgram_bsd_sendto_recv,
1158 .disconnect_send = tdgram_bsd_disconnect_send,
1159 .disconnect_recv = tdgram_bsd_disconnect_recv,
1162 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1164 TALLOC_FREE(bsds->fde);
1165 if (bsds->fd != -1) {
1172 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1173 const struct tsocket_address *remote,
1175 TALLOC_CTX *mem_ctx,
1176 struct tdgram_context **_dgram,
1177 const char *location)
1179 struct tsocket_address_bsd *lbsda =
1180 talloc_get_type_abort(local->private_data,
1181 struct tsocket_address_bsd);
1182 struct tsocket_address_bsd *rbsda = NULL;
1183 struct tdgram_context *dgram;
1184 struct tdgram_bsd *bsds;
1187 bool do_bind = false;
1188 bool do_reuseaddr = false;
1189 bool do_ipv6only = false;
1190 bool is_inet = false;
1191 int sa_fam = lbsda->u.sa.sa_family;
1194 rbsda = talloc_get_type_abort(remote->private_data,
1195 struct tsocket_address_bsd);
1198 switch (lbsda->u.sa.sa_family) {
1204 if (lbsda->u.un.sun_path[0] != 0) {
1205 do_reuseaddr = true;
1210 if (lbsda->u.in.sin_port != 0) {
1211 do_reuseaddr = true;
1214 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
1221 if (lbsda->u.in6.sin6_port != 0) {
1222 do_reuseaddr = true;
1225 if (memcmp(&in6addr_any,
1226 &lbsda->u.in6.sin6_addr,
1227 sizeof(in6addr_any)) != 0) {
1239 if (!do_bind && is_inet && rbsda) {
1240 sa_fam = rbsda->u.sa.sa_family;
1243 do_ipv6only = false;
1253 fd = socket(sa_fam, SOCK_DGRAM, 0);
1258 fd = tsocket_bsd_common_prepare_fd(fd, true);
1263 dgram = tdgram_context_create(mem_ctx,
1269 int saved_errno = errno;
1271 errno = saved_errno;
1276 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1282 ret = setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY,
1283 (const void *)&val, sizeof(val));
1285 int saved_errno = errno;
1287 errno = saved_errno;
1296 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1297 (const void *)&val, sizeof(val));
1299 int saved_errno = errno;
1301 errno = saved_errno;
1309 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1310 (const void *)&val, sizeof(val));
1312 int saved_errno = errno;
1314 errno = saved_errno;
1320 ret = bind(fd, &lbsda->u.sa, lbsda->sa_socklen);
1322 int saved_errno = errno;
1324 errno = saved_errno;
1330 if (rbsda->u.sa.sa_family != sa_fam) {
1336 ret = connect(fd, &rbsda->u.sa, rbsda->sa_socklen);
1338 int saved_errno = errno;
1340 errno = saved_errno;
1349 int _tdgram_inet_udp_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) {
1372 ret = tdgram_bsd_dgram_socket(local, remote, false,
1373 mem_ctx, dgram, location);
1378 int _tdgram_unix_socket(const struct tsocket_address *local,
1379 const struct tsocket_address *remote,
1380 TALLOC_CTX *mem_ctx,
1381 struct tdgram_context **dgram,
1382 const char *location)
1384 struct tsocket_address_bsd *lbsda =
1385 talloc_get_type_abort(local->private_data,
1386 struct tsocket_address_bsd);
1389 switch (lbsda->u.sa.sa_family) {
1397 ret = tdgram_bsd_dgram_socket(local, remote, false,
1398 mem_ctx, dgram, location);
1403 struct tstream_bsd {
1407 struct tevent_fd *fde;
1409 void *readable_private;
1410 void (*readable_handler)(void *private_data);
1411 void *writeable_private;
1412 void (*writeable_handler)(void *private_data);
1415 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1416 struct tevent_fd *fde,
1420 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1421 struct tstream_bsd);
1423 if (flags & TEVENT_FD_WRITE) {
1424 bsds->writeable_handler(bsds->writeable_private);
1427 if (flags & TEVENT_FD_READ) {
1428 if (!bsds->readable_handler) {
1429 if (bsds->writeable_handler) {
1430 bsds->writeable_handler(bsds->writeable_private);
1433 TEVENT_FD_NOT_READABLE(bsds->fde);
1436 bsds->readable_handler(bsds->readable_private);
1441 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1442 struct tevent_context *ev,
1443 void (*handler)(void *private_data),
1451 if (!bsds->readable_handler) {
1454 bsds->readable_handler = NULL;
1455 bsds->readable_private = NULL;
1460 /* read and write must use the same tevent_context */
1461 if (bsds->event_ptr != ev) {
1462 if (bsds->readable_handler || bsds->writeable_handler) {
1466 bsds->event_ptr = NULL;
1467 TALLOC_FREE(bsds->fde);
1470 if (tevent_fd_get_flags(bsds->fde) == 0) {
1471 TALLOC_FREE(bsds->fde);
1473 bsds->fde = tevent_add_fd(ev, bsds,
1474 bsds->fd, TEVENT_FD_READ,
1475 tstream_bsd_fde_handler,
1482 /* cache the event context we're running on */
1483 bsds->event_ptr = ev;
1484 } else if (!bsds->readable_handler) {
1485 TEVENT_FD_READABLE(bsds->fde);
1488 bsds->readable_handler = handler;
1489 bsds->readable_private = private_data;
1494 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1495 struct tevent_context *ev,
1496 void (*handler)(void *private_data),
1504 if (!bsds->writeable_handler) {
1507 bsds->writeable_handler = NULL;
1508 bsds->writeable_private = NULL;
1509 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
1514 /* read and write must use the same tevent_context */
1515 if (bsds->event_ptr != ev) {
1516 if (bsds->readable_handler || bsds->writeable_handler) {
1520 bsds->event_ptr = NULL;
1521 TALLOC_FREE(bsds->fde);
1524 if (tevent_fd_get_flags(bsds->fde) == 0) {
1525 TALLOC_FREE(bsds->fde);
1527 bsds->fde = tevent_add_fd(ev, bsds,
1529 TEVENT_FD_READ | TEVENT_FD_WRITE,
1530 tstream_bsd_fde_handler,
1537 /* cache the event context we're running on */
1538 bsds->event_ptr = ev;
1539 } else if (!bsds->writeable_handler) {
1540 uint16_t flags = tevent_fd_get_flags(bsds->fde);
1541 flags |= TEVENT_FD_READ | TEVENT_FD_WRITE;
1542 tevent_fd_set_flags(bsds->fde, flags);
1545 bsds->writeable_handler = handler;
1546 bsds->writeable_private = private_data;
1551 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1553 struct tstream_bsd *bsds = tstream_context_data(stream,
1554 struct tstream_bsd);
1557 if (bsds->fd == -1) {
1562 ret = tsocket_bsd_pending(bsds->fd);
1567 struct tstream_bsd_readv_state {
1568 struct tstream_context *stream;
1570 struct iovec *vector;
1576 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1578 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1579 struct tstream_bsd);
1581 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1586 static void tstream_bsd_readv_handler(void *private_data);
1588 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1589 struct tevent_context *ev,
1590 struct tstream_context *stream,
1591 struct iovec *vector,
1594 struct tevent_req *req;
1595 struct tstream_bsd_readv_state *state;
1596 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1599 req = tevent_req_create(mem_ctx, &state,
1600 struct tstream_bsd_readv_state);
1605 state->stream = stream;
1606 /* we make a copy of the vector so that we can modify it */
1607 state->vector = talloc_array(state, struct iovec, count);
1608 if (tevent_req_nomem(state->vector, req)) {
1611 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1612 state->count = count;
1615 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1617 if (bsds->fd == -1) {
1618 tevent_req_error(req, ENOTCONN);
1623 * this is a fast path, not waiting for the
1624 * socket to become explicit readable gains
1625 * about 10%-20% performance in benchmark tests.
1627 tstream_bsd_readv_handler(req);
1628 if (!tevent_req_is_in_progress(req)) {
1632 ret = tstream_bsd_set_readable_handler(bsds, ev,
1633 tstream_bsd_readv_handler,
1636 tevent_req_error(req, errno);
1643 tevent_req_post(req, ev);
1647 static void tstream_bsd_readv_handler(void *private_data)
1649 struct tevent_req *req = talloc_get_type_abort(private_data,
1651 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1652 struct tstream_bsd_readv_state);
1653 struct tstream_context *stream = state->stream;
1654 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1659 ret = readv(bsds->fd, state->vector, state->count);
1661 /* propagate end of file */
1662 tevent_req_error(req, EPIPE);
1665 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1670 if (tevent_req_error(req, err)) {
1677 if (ret < state->vector[0].iov_len) {
1679 base = (uint8_t *)state->vector[0].iov_base;
1681 state->vector[0].iov_base = (void *)base;
1682 state->vector[0].iov_len -= ret;
1685 ret -= state->vector[0].iov_len;
1691 * there're maybe some empty vectors at the end
1692 * which we need to skip, otherwise we would get
1693 * ret == 0 from the readv() call and return EPIPE
1695 while (state->count > 0) {
1696 if (state->vector[0].iov_len > 0) {
1703 if (state->count > 0) {
1704 /* we have more to read */
1708 tevent_req_done(req);
1711 static int tstream_bsd_readv_recv(struct tevent_req *req,
1714 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1715 struct tstream_bsd_readv_state);
1718 ret = tsocket_simple_int_recv(req, perrno);
1723 tevent_req_received(req);
1727 struct tstream_bsd_writev_state {
1728 struct tstream_context *stream;
1730 struct iovec *vector;
1736 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1738 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1739 struct tstream_bsd);
1741 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1746 static void tstream_bsd_writev_handler(void *private_data);
1748 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1749 struct tevent_context *ev,
1750 struct tstream_context *stream,
1751 const struct iovec *vector,
1754 struct tevent_req *req;
1755 struct tstream_bsd_writev_state *state;
1756 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1759 req = tevent_req_create(mem_ctx, &state,
1760 struct tstream_bsd_writev_state);
1765 state->stream = stream;
1766 /* we make a copy of the vector so that we can modify it */
1767 state->vector = talloc_array(state, struct iovec, count);
1768 if (tevent_req_nomem(state->vector, req)) {
1771 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1772 state->count = count;
1775 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1777 if (bsds->fd == -1) {
1778 tevent_req_error(req, ENOTCONN);
1783 * this is a fast path, not waiting for the
1784 * socket to become explicit writeable gains
1785 * about 10%-20% performance in benchmark tests.
1787 tstream_bsd_writev_handler(req);
1788 if (!tevent_req_is_in_progress(req)) {
1792 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1793 tstream_bsd_writev_handler,
1796 tevent_req_error(req, errno);
1803 tevent_req_post(req, ev);
1807 static void tstream_bsd_writev_handler(void *private_data)
1809 struct tevent_req *req = talloc_get_type_abort(private_data,
1811 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1812 struct tstream_bsd_writev_state);
1813 struct tstream_context *stream = state->stream;
1814 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1819 ret = writev(bsds->fd, state->vector, state->count);
1821 /* propagate end of file */
1822 tevent_req_error(req, EPIPE);
1825 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1830 if (tevent_req_error(req, err)) {
1837 if (ret < state->vector[0].iov_len) {
1839 base = (uint8_t *)state->vector[0].iov_base;
1841 state->vector[0].iov_base = (void *)base;
1842 state->vector[0].iov_len -= ret;
1845 ret -= state->vector[0].iov_len;
1851 * there're maybe some empty vectors at the end
1852 * which we need to skip, otherwise we would get
1853 * ret == 0 from the writev() call and return EPIPE
1855 while (state->count > 0) {
1856 if (state->vector[0].iov_len > 0) {
1863 if (state->count > 0) {
1864 /* we have more to read */
1868 tevent_req_done(req);
1871 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1873 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1874 struct tstream_bsd_writev_state);
1877 ret = tsocket_simple_int_recv(req, perrno);
1882 tevent_req_received(req);
1886 struct tstream_bsd_disconnect_state {
1890 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1891 struct tevent_context *ev,
1892 struct tstream_context *stream)
1894 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1895 struct tevent_req *req;
1896 struct tstream_bsd_disconnect_state *state;
1901 req = tevent_req_create(mem_ctx, &state,
1902 struct tstream_bsd_disconnect_state);
1907 if (bsds->fd == -1) {
1908 tevent_req_error(req, ENOTCONN);
1912 TALLOC_FREE(bsds->fde);
1913 ret = close(bsds->fd);
1915 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1916 if (tevent_req_error(req, err)) {
1920 tevent_req_done(req);
1922 tevent_req_post(req, ev);
1926 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1931 ret = tsocket_simple_int_recv(req, perrno);
1933 tevent_req_received(req);
1937 static const struct tstream_context_ops tstream_bsd_ops = {
1940 .pending_bytes = tstream_bsd_pending_bytes,
1942 .readv_send = tstream_bsd_readv_send,
1943 .readv_recv = tstream_bsd_readv_recv,
1945 .writev_send = tstream_bsd_writev_send,
1946 .writev_recv = tstream_bsd_writev_recv,
1948 .disconnect_send = tstream_bsd_disconnect_send,
1949 .disconnect_recv = tstream_bsd_disconnect_recv,
1952 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1954 TALLOC_FREE(bsds->fde);
1955 if (bsds->fd != -1) {
1962 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1964 struct tstream_context **_stream,
1965 const char *location)
1967 struct tstream_context *stream;
1968 struct tstream_bsd *bsds;
1970 stream = tstream_context_create(mem_ctx,
1980 talloc_set_destructor(bsds, tstream_bsd_destructor);
1986 struct tstream_bsd_connect_state {
1988 struct tevent_fd *fde;
1989 struct tstream_conext *stream;
1990 struct tsocket_address *local;
1993 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1995 TALLOC_FREE(state->fde);
1996 if (state->fd != -1) {
2004 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
2005 struct tevent_fd *fde,
2007 void *private_data);
2009 static struct tevent_req *tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
2010 struct tevent_context *ev,
2012 const struct tsocket_address *local,
2013 const struct tsocket_address *remote)
2015 struct tevent_req *req;
2016 struct tstream_bsd_connect_state *state;
2017 struct tsocket_address_bsd *lbsda =
2018 talloc_get_type_abort(local->private_data,
2019 struct tsocket_address_bsd);
2020 struct tsocket_address_bsd *lrbsda = NULL;
2021 struct tsocket_address_bsd *rbsda =
2022 talloc_get_type_abort(remote->private_data,
2023 struct tsocket_address_bsd);
2027 bool do_bind = false;
2028 bool do_reuseaddr = false;
2029 bool do_ipv6only = false;
2030 bool is_inet = false;
2031 int sa_fam = lbsda->u.sa.sa_family;
2033 req = tevent_req_create(mem_ctx, &state,
2034 struct tstream_bsd_connect_state);
2041 talloc_set_destructor(state, tstream_bsd_connect_destructor);
2043 /* give the wrappers a chance to report an error */
2044 if (sys_errno != 0) {
2045 tevent_req_error(req, sys_errno);
2049 switch (lbsda->u.sa.sa_family) {
2051 if (lbsda->u.un.sun_path[0] != 0) {
2052 do_reuseaddr = true;
2057 if (lbsda->u.in.sin_port != 0) {
2058 do_reuseaddr = true;
2061 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
2068 if (lbsda->u.in6.sin6_port != 0) {
2069 do_reuseaddr = true;
2072 if (memcmp(&in6addr_any,
2073 &lbsda->u.in6.sin6_addr,
2074 sizeof(in6addr_any)) != 0) {
2082 tevent_req_error(req, EINVAL);
2086 if (!do_bind && is_inet) {
2087 sa_fam = rbsda->u.sa.sa_family;
2090 do_ipv6only = false;
2101 state->local = tsocket_address_create(state,
2102 &tsocket_address_bsd_ops,
2104 struct tsocket_address_bsd,
2105 __location__ "bsd_connect");
2106 if (tevent_req_nomem(state->local, req)) {
2110 ZERO_STRUCTP(lrbsda);
2111 lrbsda->sa_socklen = sizeof(lrbsda->u.ss);
2112 #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
2113 lrbsda->u.sa.sa_len = lrbsda->sa_socklen;
2117 state->fd = socket(sa_fam, SOCK_STREAM, 0);
2118 if (state->fd == -1) {
2119 tevent_req_error(req, errno);
2123 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
2124 if (state->fd == -1) {
2125 tevent_req_error(req, errno);
2133 ret = setsockopt(state->fd, IPPROTO_IPV6, IPV6_V6ONLY,
2134 (const void *)&val, sizeof(val));
2136 tevent_req_error(req, errno);
2145 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
2146 (const void *)&val, sizeof(val));
2148 tevent_req_error(req, errno);
2154 ret = bind(state->fd, &lbsda->u.sa, lbsda->sa_socklen);
2156 tevent_req_error(req, errno);
2161 if (rbsda->u.sa.sa_family != sa_fam) {
2162 tevent_req_error(req, EINVAL);
2166 ret = connect(state->fd, &rbsda->u.sa, rbsda->sa_socklen);
2167 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2172 if (tevent_req_error(req, err)) {
2176 if (!state->local) {
2177 tevent_req_done(req);
2181 ret = getsockname(state->fd, &lrbsda->u.sa, &lrbsda->sa_socklen);
2183 tevent_req_error(req, errno);
2187 tevent_req_done(req);
2191 state->fde = tevent_add_fd(ev, state,
2193 TEVENT_FD_READ | TEVENT_FD_WRITE,
2194 tstream_bsd_connect_fde_handler,
2196 if (tevent_req_nomem(state->fde, req)) {
2203 tevent_req_post(req, ev);
2207 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
2208 struct tevent_fd *fde,
2212 struct tevent_req *req = talloc_get_type_abort(private_data,
2214 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2215 struct tstream_bsd_connect_state);
2216 struct tsocket_address_bsd *lrbsda = NULL;
2219 socklen_t len = sizeof(error);
2223 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
2230 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2235 if (tevent_req_error(req, err)) {
2239 if (!state->local) {
2240 tevent_req_done(req);
2244 lrbsda = talloc_get_type_abort(state->local->private_data,
2245 struct tsocket_address_bsd);
2247 ret = getsockname(state->fd, &lrbsda->u.sa, &lrbsda->sa_socklen);
2249 tevent_req_error(req, errno);
2253 tevent_req_done(req);
2256 static int tstream_bsd_connect_recv(struct tevent_req *req,
2258 TALLOC_CTX *mem_ctx,
2259 struct tstream_context **stream,
2260 struct tsocket_address **local,
2261 const char *location)
2263 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2264 struct tstream_bsd_connect_state);
2267 ret = tsocket_simple_int_recv(req, perrno);
2269 ret = _tstream_bsd_existing_socket(mem_ctx,
2277 TALLOC_FREE(state->fde);
2281 *local = talloc_move(mem_ctx, &state->local);
2286 tevent_req_received(req);
2290 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2291 struct tevent_context *ev,
2292 const struct tsocket_address *local,
2293 const struct tsocket_address *remote)
2295 struct tsocket_address_bsd *lbsda =
2296 talloc_get_type_abort(local->private_data,
2297 struct tsocket_address_bsd);
2298 struct tevent_req *req;
2301 switch (lbsda->u.sa.sa_family) {
2313 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2318 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2320 TALLOC_CTX *mem_ctx,
2321 struct tstream_context **stream,
2322 struct tsocket_address **local,
2323 const char *location)
2325 return tstream_bsd_connect_recv(req, perrno,
2326 mem_ctx, stream, local,
2330 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2331 struct tevent_context *ev,
2332 const struct tsocket_address *local,
2333 const struct tsocket_address *remote)
2335 struct tsocket_address_bsd *lbsda =
2336 talloc_get_type_abort(local->private_data,
2337 struct tsocket_address_bsd);
2338 struct tevent_req *req;
2341 switch (lbsda->u.sa.sa_family) {
2349 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2354 int _tstream_unix_connect_recv(struct tevent_req *req,
2356 TALLOC_CTX *mem_ctx,
2357 struct tstream_context **stream,
2358 const char *location)
2360 return tstream_bsd_connect_recv(req, perrno,
2361 mem_ctx, stream, NULL,
2365 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2366 struct tstream_context **_stream1,
2367 TALLOC_CTX *mem_ctx2,
2368 struct tstream_context **_stream2,
2369 const char *location)
2375 struct tstream_context *stream1 = NULL;
2376 struct tstream_context *stream2 = NULL;
2378 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2385 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2387 int sys_errno = errno;
2393 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2395 int sys_errno = errno;
2401 ret = _tstream_bsd_existing_socket(mem_ctx1,
2406 int sys_errno = errno;
2413 ret = _tstream_bsd_existing_socket(mem_ctx2,
2418 int sys_errno = errno;
2419 talloc_free(stream1);
2425 *_stream1 = stream1;
2426 *_stream2 = stream2;