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 int _tsocket_address_inet_from_strings(TALLOC_CTX *mem_ctx,
301 struct tsocket_address **_addr,
302 const char *location)
304 struct addrinfo hints;
305 struct addrinfo *result = NULL;
311 * we use SOCKET_STREAM here to get just one result
312 * back from getaddrinfo().
314 hints.ai_socktype = SOCK_STREAM;
315 hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
317 if (strcasecmp(fam, "ip") == 0) {
318 hints.ai_family = AF_UNSPEC;
326 } else if (strcasecmp(fam, "ipv4") == 0) {
327 hints.ai_family = AF_INET;
332 } else if (strcasecmp(fam, "ipv6") == 0) {
333 hints.ai_family = AF_INET6;
339 errno = EAFNOSUPPORT;
343 snprintf(port_str, sizeof(port_str) - 1, "%u", port);
345 ret = getaddrinfo(addr, port_str, &hints, &result);
356 if (result->ai_socktype != SOCK_STREAM) {
362 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
370 freeaddrinfo(result);
375 char *tsocket_address_inet_addr_string(const struct tsocket_address *addr,
378 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
379 struct tsocket_address_bsd);
380 char addr_str[INET6_ADDRSTRLEN+1];
388 switch (bsda->u.sa.sa_family) {
390 str = inet_ntop(bsda->u.in.sin_family,
391 &bsda->u.in.sin_addr,
392 addr_str, sizeof(addr_str));
396 str = inet_ntop(bsda->u.in6.sin6_family,
397 &bsda->u.in6.sin6_addr,
398 addr_str, sizeof(addr_str));
410 return talloc_strdup(mem_ctx, str);
413 uint16_t tsocket_address_inet_port(const struct tsocket_address *addr)
415 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
416 struct tsocket_address_bsd);
424 switch (bsda->u.sa.sa_family) {
426 port = ntohs(bsda->u.in.sin_port);
430 port = ntohs(bsda->u.in6.sin6_port);
441 int tsocket_address_inet_set_port(struct tsocket_address *addr,
444 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
445 struct tsocket_address_bsd);
452 switch (bsda->u.sa.sa_family) {
454 bsda->u.in.sin_port = htons(port);
458 bsda->u.in6.sin6_port = htons(port);
469 int _tsocket_address_unix_from_path(TALLOC_CTX *mem_ctx,
471 struct tsocket_address **_addr,
472 const char *location)
474 struct sockaddr_un un;
482 if (strlen(path) > sizeof(un.sun_path)-1) {
483 errno = ENAMETOOLONG;
488 un.sun_family = AF_UNIX;
489 strncpy(un.sun_path, path, sizeof(un.sun_path)-1);
491 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
492 (struct sockaddr *)p,
500 char *tsocket_address_unix_path(const struct tsocket_address *addr,
503 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
504 struct tsocket_address_bsd);
512 switch (bsda->u.sa.sa_family) {
514 str = bsda->u.un.sun_path;
521 return talloc_strdup(mem_ctx, str);
524 static char *tsocket_address_bsd_string(const struct tsocket_address *addr,
527 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
528 struct tsocket_address_bsd);
531 const char *prefix = NULL;
534 switch (bsda->u.sa.sa_family) {
536 return talloc_asprintf(mem_ctx, "unix:%s",
537 bsda->u.un.sun_path);
551 addr_str = tsocket_address_inet_addr_string(addr, mem_ctx);
556 port = tsocket_address_inet_port(addr);
558 str = talloc_asprintf(mem_ctx, "%s:%s:%u",
559 prefix, addr_str, port);
560 talloc_free(addr_str);
565 static struct tsocket_address *tsocket_address_bsd_copy(const struct tsocket_address *addr,
567 const char *location)
569 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
570 struct tsocket_address_bsd);
571 struct tsocket_address *copy;
574 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
586 static const struct tsocket_address_ops tsocket_address_bsd_ops = {
588 .string = tsocket_address_bsd_string,
589 .copy = tsocket_address_bsd_copy,
596 struct tevent_fd *fde;
598 void *readable_private;
599 void (*readable_handler)(void *private_data);
600 void *writeable_private;
601 void (*writeable_handler)(void *private_data);
604 static void tdgram_bsd_fde_handler(struct tevent_context *ev,
605 struct tevent_fd *fde,
609 struct tdgram_bsd *bsds = talloc_get_type_abort(private_data,
612 if (flags & TEVENT_FD_WRITE) {
613 bsds->writeable_handler(bsds->writeable_private);
616 if (flags & TEVENT_FD_READ) {
617 if (!bsds->readable_handler) {
618 TEVENT_FD_NOT_READABLE(bsds->fde);
621 bsds->readable_handler(bsds->readable_private);
626 static int tdgram_bsd_set_readable_handler(struct tdgram_bsd *bsds,
627 struct tevent_context *ev,
628 void (*handler)(void *private_data),
636 if (!bsds->readable_handler) {
639 bsds->readable_handler = NULL;
640 bsds->readable_private = NULL;
645 /* read and write must use the same tevent_context */
646 if (bsds->event_ptr != ev) {
647 if (bsds->readable_handler || bsds->writeable_handler) {
651 bsds->event_ptr = NULL;
652 TALLOC_FREE(bsds->fde);
655 if (tevent_fd_get_flags(bsds->fde) == 0) {
656 TALLOC_FREE(bsds->fde);
658 bsds->fde = tevent_add_fd(ev, bsds,
659 bsds->fd, TEVENT_FD_READ,
660 tdgram_bsd_fde_handler,
667 /* cache the event context we're running on */
668 bsds->event_ptr = ev;
669 } else if (!bsds->readable_handler) {
670 TEVENT_FD_READABLE(bsds->fde);
673 bsds->readable_handler = handler;
674 bsds->readable_private = private_data;
679 static int tdgram_bsd_set_writeable_handler(struct tdgram_bsd *bsds,
680 struct tevent_context *ev,
681 void (*handler)(void *private_data),
689 if (!bsds->writeable_handler) {
692 bsds->writeable_handler = NULL;
693 bsds->writeable_private = NULL;
694 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
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_WRITE,
714 tdgram_bsd_fde_handler,
721 /* cache the event context we're running on */
722 bsds->event_ptr = ev;
723 } else if (!bsds->writeable_handler) {
724 TEVENT_FD_WRITEABLE(bsds->fde);
727 bsds->writeable_handler = handler;
728 bsds->writeable_private = private_data;
733 struct tdgram_bsd_recvfrom_state {
734 struct tdgram_context *dgram;
738 struct tsocket_address *src;
741 static int tdgram_bsd_recvfrom_destructor(struct tdgram_bsd_recvfrom_state *state)
743 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
746 tdgram_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
751 static void tdgram_bsd_recvfrom_handler(void *private_data);
753 static struct tevent_req *tdgram_bsd_recvfrom_send(TALLOC_CTX *mem_ctx,
754 struct tevent_context *ev,
755 struct tdgram_context *dgram)
757 struct tevent_req *req;
758 struct tdgram_bsd_recvfrom_state *state;
759 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
762 req = tevent_req_create(mem_ctx, &state,
763 struct tdgram_bsd_recvfrom_state);
768 state->dgram = dgram;
773 talloc_set_destructor(state, tdgram_bsd_recvfrom_destructor);
775 if (bsds->fd == -1) {
776 tevent_req_error(req, ENOTCONN);
781 * this is a fast path, not waiting for the
782 * socket to become explicit readable gains
783 * about 10%-20% performance in benchmark tests.
785 tdgram_bsd_recvfrom_handler(req);
786 if (!tevent_req_is_in_progress(req)) {
790 ret = tdgram_bsd_set_readable_handler(bsds, ev,
791 tdgram_bsd_recvfrom_handler,
794 tevent_req_error(req, errno);
801 tevent_req_post(req, ev);
805 static void tdgram_bsd_recvfrom_handler(void *private_data)
807 struct tevent_req *req = talloc_get_type_abort(private_data,
809 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
810 struct tdgram_bsd_recvfrom_state);
811 struct tdgram_context *dgram = state->dgram;
812 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
813 struct tsocket_address_bsd *bsda;
818 ret = tsocket_bsd_pending(bsds->fd);
823 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
828 if (tevent_req_error(req, err)) {
832 state->buf = talloc_array(state, uint8_t, ret);
833 if (tevent_req_nomem(state->buf, req)) {
838 state->src = tsocket_address_create(state,
839 &tsocket_address_bsd_ops,
841 struct tsocket_address_bsd,
842 __location__ "bsd_recvfrom");
843 if (tevent_req_nomem(state->src, req)) {
848 bsda->sa_socklen = sizeof(bsda->u.ss);
850 ret = recvfrom(bsds->fd, state->buf, state->len, 0,
851 &bsda->u.sa, &bsda->sa_socklen);
852 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
857 if (tevent_req_error(req, err)) {
862 * Some systems (FreeBSD, see bug #7115) return too much
863 * bytes in tsocket_bsd_pending()/ioctl(fd, FIONREAD, ...),
864 * the return value includes some IP/UDP header bytes,
865 * while recvfrom() just returns the payload.
867 state->buf = talloc_realloc(state, state->buf, uint8_t, ret);
868 if (tevent_req_nomem(state->buf, req)) {
873 tevent_req_done(req);
876 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
880 struct tsocket_address **src)
882 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
883 struct tdgram_bsd_recvfrom_state);
886 ret = tsocket_simple_int_recv(req, perrno);
888 *buf = talloc_move(mem_ctx, &state->buf);
891 *src = talloc_move(mem_ctx, &state->src);
895 tevent_req_received(req);
899 struct tdgram_bsd_sendto_state {
900 struct tdgram_context *dgram;
904 const struct tsocket_address *dst;
909 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
911 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
914 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
919 static void tdgram_bsd_sendto_handler(void *private_data);
921 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
922 struct tevent_context *ev,
923 struct tdgram_context *dgram,
926 const struct tsocket_address *dst)
928 struct tevent_req *req;
929 struct tdgram_bsd_sendto_state *state;
930 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
933 req = tevent_req_create(mem_ctx, &state,
934 struct tdgram_bsd_sendto_state);
939 state->dgram = dgram;
945 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
947 if (bsds->fd == -1) {
948 tevent_req_error(req, ENOTCONN);
953 * this is a fast path, not waiting for the
954 * socket to become explicit writeable gains
955 * about 10%-20% performance in benchmark tests.
957 tdgram_bsd_sendto_handler(req);
958 if (!tevent_req_is_in_progress(req)) {
962 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
963 tdgram_bsd_sendto_handler,
966 tevent_req_error(req, errno);
973 tevent_req_post(req, ev);
977 static void tdgram_bsd_sendto_handler(void *private_data)
979 struct tevent_req *req = talloc_get_type_abort(private_data,
981 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
982 struct tdgram_bsd_sendto_state);
983 struct tdgram_context *dgram = state->dgram;
984 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
985 struct sockaddr *sa = NULL;
986 socklen_t sa_socklen = 0;
992 struct tsocket_address_bsd *bsda =
993 talloc_get_type(state->dst->private_data,
994 struct tsocket_address_bsd);
997 sa_socklen = bsda->sa_socklen;
1000 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_socklen);
1001 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1006 if (tevent_req_error(req, err)) {
1012 tevent_req_done(req);
1015 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
1017 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
1018 struct tdgram_bsd_sendto_state);
1021 ret = tsocket_simple_int_recv(req, perrno);
1026 tevent_req_received(req);
1030 struct tdgram_bsd_disconnect_state {
1034 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1035 struct tevent_context *ev,
1036 struct tdgram_context *dgram)
1038 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1039 struct tevent_req *req;
1040 struct tdgram_bsd_disconnect_state *state;
1045 req = tevent_req_create(mem_ctx, &state,
1046 struct tdgram_bsd_disconnect_state);
1051 if (bsds->fd == -1) {
1052 tevent_req_error(req, ENOTCONN);
1056 ret = close(bsds->fd);
1058 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1059 if (tevent_req_error(req, err)) {
1063 tevent_req_done(req);
1065 tevent_req_post(req, ev);
1069 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1074 ret = tsocket_simple_int_recv(req, perrno);
1076 tevent_req_received(req);
1080 static const struct tdgram_context_ops tdgram_bsd_ops = {
1083 .recvfrom_send = tdgram_bsd_recvfrom_send,
1084 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1086 .sendto_send = tdgram_bsd_sendto_send,
1087 .sendto_recv = tdgram_bsd_sendto_recv,
1089 .disconnect_send = tdgram_bsd_disconnect_send,
1090 .disconnect_recv = tdgram_bsd_disconnect_recv,
1093 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1095 TALLOC_FREE(bsds->fde);
1096 if (bsds->fd != -1) {
1103 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1104 const struct tsocket_address *remote,
1106 TALLOC_CTX *mem_ctx,
1107 struct tdgram_context **_dgram,
1108 const char *location)
1110 struct tsocket_address_bsd *lbsda =
1111 talloc_get_type_abort(local->private_data,
1112 struct tsocket_address_bsd);
1113 struct tsocket_address_bsd *rbsda = NULL;
1114 struct tdgram_context *dgram;
1115 struct tdgram_bsd *bsds;
1118 bool do_bind = false;
1119 bool do_reuseaddr = false;
1120 bool do_ipv6only = false;
1121 bool is_inet = false;
1122 int sa_fam = lbsda->u.sa.sa_family;
1125 rbsda = talloc_get_type_abort(remote->private_data,
1126 struct tsocket_address_bsd);
1129 switch (lbsda->u.sa.sa_family) {
1135 if (lbsda->u.un.sun_path[0] != 0) {
1136 do_reuseaddr = true;
1141 if (lbsda->u.in.sin_port != 0) {
1142 do_reuseaddr = true;
1145 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
1152 if (lbsda->u.in6.sin6_port != 0) {
1153 do_reuseaddr = true;
1156 if (memcmp(&in6addr_any,
1157 &lbsda->u.in6.sin6_addr,
1158 sizeof(in6addr_any)) != 0) {
1170 if (!do_bind && is_inet && rbsda) {
1171 sa_fam = rbsda->u.sa.sa_family;
1174 do_ipv6only = false;
1184 fd = socket(sa_fam, SOCK_DGRAM, 0);
1189 fd = tsocket_bsd_common_prepare_fd(fd, true);
1194 dgram = tdgram_context_create(mem_ctx,
1200 int saved_errno = errno;
1202 errno = saved_errno;
1207 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1209 #if defined(HAVE_IPV6) && defined(IPV6_V6ONLY)
1213 ret = setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY,
1214 (const void *)&val, sizeof(val));
1216 int saved_errno = errno;
1218 errno = saved_errno;
1227 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1228 (const void *)&val, sizeof(val));
1230 int saved_errno = errno;
1232 errno = saved_errno;
1240 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1241 (const void *)&val, sizeof(val));
1243 int saved_errno = errno;
1245 errno = saved_errno;
1251 ret = bind(fd, &lbsda->u.sa, lbsda->sa_socklen);
1253 int saved_errno = errno;
1255 errno = saved_errno;
1261 if (rbsda->u.sa.sa_family != sa_fam) {
1267 ret = connect(fd, &rbsda->u.sa, rbsda->sa_socklen);
1269 int saved_errno = errno;
1271 errno = saved_errno;
1280 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
1281 const struct tsocket_address *remote,
1282 TALLOC_CTX *mem_ctx,
1283 struct tdgram_context **dgram,
1284 const char *location)
1286 struct tsocket_address_bsd *lbsda =
1287 talloc_get_type_abort(local->private_data,
1288 struct tsocket_address_bsd);
1291 switch (lbsda->u.sa.sa_family) {
1303 ret = tdgram_bsd_dgram_socket(local, remote, false,
1304 mem_ctx, dgram, location);
1309 int _tdgram_unix_socket(const struct tsocket_address *local,
1310 const struct tsocket_address *remote,
1311 TALLOC_CTX *mem_ctx,
1312 struct tdgram_context **dgram,
1313 const char *location)
1315 struct tsocket_address_bsd *lbsda =
1316 talloc_get_type_abort(local->private_data,
1317 struct tsocket_address_bsd);
1320 switch (lbsda->u.sa.sa_family) {
1328 ret = tdgram_bsd_dgram_socket(local, remote, false,
1329 mem_ctx, dgram, location);
1334 struct tstream_bsd {
1338 struct tevent_fd *fde;
1340 void *readable_private;
1341 void (*readable_handler)(void *private_data);
1342 void *writeable_private;
1343 void (*writeable_handler)(void *private_data);
1346 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1347 struct tevent_fd *fde,
1351 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1352 struct tstream_bsd);
1354 if (flags & TEVENT_FD_WRITE) {
1355 bsds->writeable_handler(bsds->writeable_private);
1358 if (flags & TEVENT_FD_READ) {
1359 if (!bsds->readable_handler) {
1360 if (bsds->writeable_handler) {
1361 bsds->writeable_handler(bsds->writeable_private);
1364 TEVENT_FD_NOT_READABLE(bsds->fde);
1367 bsds->readable_handler(bsds->readable_private);
1372 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1373 struct tevent_context *ev,
1374 void (*handler)(void *private_data),
1382 if (!bsds->readable_handler) {
1385 bsds->readable_handler = NULL;
1386 bsds->readable_private = NULL;
1391 /* read and write must use the same tevent_context */
1392 if (bsds->event_ptr != ev) {
1393 if (bsds->readable_handler || bsds->writeable_handler) {
1397 bsds->event_ptr = NULL;
1398 TALLOC_FREE(bsds->fde);
1401 if (tevent_fd_get_flags(bsds->fde) == 0) {
1402 TALLOC_FREE(bsds->fde);
1404 bsds->fde = tevent_add_fd(ev, bsds,
1405 bsds->fd, TEVENT_FD_READ,
1406 tstream_bsd_fde_handler,
1413 /* cache the event context we're running on */
1414 bsds->event_ptr = ev;
1415 } else if (!bsds->readable_handler) {
1416 TEVENT_FD_READABLE(bsds->fde);
1419 bsds->readable_handler = handler;
1420 bsds->readable_private = private_data;
1425 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1426 struct tevent_context *ev,
1427 void (*handler)(void *private_data),
1435 if (!bsds->writeable_handler) {
1438 bsds->writeable_handler = NULL;
1439 bsds->writeable_private = NULL;
1440 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
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,
1460 TEVENT_FD_READ | TEVENT_FD_WRITE,
1461 tstream_bsd_fde_handler,
1468 /* cache the event context we're running on */
1469 bsds->event_ptr = ev;
1470 } else if (!bsds->writeable_handler) {
1471 uint16_t flags = tevent_fd_get_flags(bsds->fde);
1472 flags |= TEVENT_FD_READ | TEVENT_FD_WRITE;
1473 tevent_fd_set_flags(bsds->fde, flags);
1476 bsds->writeable_handler = handler;
1477 bsds->writeable_private = private_data;
1482 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1484 struct tstream_bsd *bsds = tstream_context_data(stream,
1485 struct tstream_bsd);
1488 if (bsds->fd == -1) {
1493 ret = tsocket_bsd_pending(bsds->fd);
1498 struct tstream_bsd_readv_state {
1499 struct tstream_context *stream;
1501 struct iovec *vector;
1507 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1509 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1510 struct tstream_bsd);
1512 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1517 static void tstream_bsd_readv_handler(void *private_data);
1519 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1520 struct tevent_context *ev,
1521 struct tstream_context *stream,
1522 struct iovec *vector,
1525 struct tevent_req *req;
1526 struct tstream_bsd_readv_state *state;
1527 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1530 req = tevent_req_create(mem_ctx, &state,
1531 struct tstream_bsd_readv_state);
1536 state->stream = stream;
1537 /* we make a copy of the vector so that we can modify it */
1538 state->vector = talloc_array(state, struct iovec, count);
1539 if (tevent_req_nomem(state->vector, req)) {
1542 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1543 state->count = count;
1546 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1548 if (bsds->fd == -1) {
1549 tevent_req_error(req, ENOTCONN);
1554 * this is a fast path, not waiting for the
1555 * socket to become explicit readable gains
1556 * about 10%-20% performance in benchmark tests.
1558 tstream_bsd_readv_handler(req);
1559 if (!tevent_req_is_in_progress(req)) {
1563 ret = tstream_bsd_set_readable_handler(bsds, ev,
1564 tstream_bsd_readv_handler,
1567 tevent_req_error(req, errno);
1574 tevent_req_post(req, ev);
1578 static void tstream_bsd_readv_handler(void *private_data)
1580 struct tevent_req *req = talloc_get_type_abort(private_data,
1582 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1583 struct tstream_bsd_readv_state);
1584 struct tstream_context *stream = state->stream;
1585 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1590 ret = readv(bsds->fd, state->vector, state->count);
1592 /* propagate end of file */
1593 tevent_req_error(req, EPIPE);
1596 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1601 if (tevent_req_error(req, err)) {
1608 if (ret < state->vector[0].iov_len) {
1610 base = (uint8_t *)state->vector[0].iov_base;
1612 state->vector[0].iov_base = base;
1613 state->vector[0].iov_len -= ret;
1616 ret -= state->vector[0].iov_len;
1622 * there're maybe some empty vectors at the end
1623 * which we need to skip, otherwise we would get
1624 * ret == 0 from the readv() call and return EPIPE
1626 while (state->count > 0) {
1627 if (state->vector[0].iov_len > 0) {
1634 if (state->count > 0) {
1635 /* we have more to read */
1639 tevent_req_done(req);
1642 static int tstream_bsd_readv_recv(struct tevent_req *req,
1645 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1646 struct tstream_bsd_readv_state);
1649 ret = tsocket_simple_int_recv(req, perrno);
1654 tevent_req_received(req);
1658 struct tstream_bsd_writev_state {
1659 struct tstream_context *stream;
1661 struct iovec *vector;
1667 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1669 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1670 struct tstream_bsd);
1672 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1677 static void tstream_bsd_writev_handler(void *private_data);
1679 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1680 struct tevent_context *ev,
1681 struct tstream_context *stream,
1682 const struct iovec *vector,
1685 struct tevent_req *req;
1686 struct tstream_bsd_writev_state *state;
1687 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1690 req = tevent_req_create(mem_ctx, &state,
1691 struct tstream_bsd_writev_state);
1696 state->stream = stream;
1697 /* we make a copy of the vector so that we can modify it */
1698 state->vector = talloc_array(state, struct iovec, count);
1699 if (tevent_req_nomem(state->vector, req)) {
1702 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1703 state->count = count;
1706 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1708 if (bsds->fd == -1) {
1709 tevent_req_error(req, ENOTCONN);
1714 * this is a fast path, not waiting for the
1715 * socket to become explicit writeable gains
1716 * about 10%-20% performance in benchmark tests.
1718 tstream_bsd_writev_handler(req);
1719 if (!tevent_req_is_in_progress(req)) {
1723 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1724 tstream_bsd_writev_handler,
1727 tevent_req_error(req, errno);
1734 tevent_req_post(req, ev);
1738 static void tstream_bsd_writev_handler(void *private_data)
1740 struct tevent_req *req = talloc_get_type_abort(private_data,
1742 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1743 struct tstream_bsd_writev_state);
1744 struct tstream_context *stream = state->stream;
1745 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1750 ret = writev(bsds->fd, state->vector, state->count);
1752 /* propagate end of file */
1753 tevent_req_error(req, EPIPE);
1756 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1761 if (tevent_req_error(req, err)) {
1768 if (ret < state->vector[0].iov_len) {
1770 base = (uint8_t *)state->vector[0].iov_base;
1772 state->vector[0].iov_base = base;
1773 state->vector[0].iov_len -= ret;
1776 ret -= state->vector[0].iov_len;
1782 * there're maybe some empty vectors at the end
1783 * which we need to skip, otherwise we would get
1784 * ret == 0 from the writev() call and return EPIPE
1786 while (state->count > 0) {
1787 if (state->vector[0].iov_len > 0) {
1794 if (state->count > 0) {
1795 /* we have more to read */
1799 tevent_req_done(req);
1802 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1804 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1805 struct tstream_bsd_writev_state);
1808 ret = tsocket_simple_int_recv(req, perrno);
1813 tevent_req_received(req);
1817 struct tstream_bsd_disconnect_state {
1821 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1822 struct tevent_context *ev,
1823 struct tstream_context *stream)
1825 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1826 struct tevent_req *req;
1827 struct tstream_bsd_disconnect_state *state;
1832 req = tevent_req_create(mem_ctx, &state,
1833 struct tstream_bsd_disconnect_state);
1838 if (bsds->fd == -1) {
1839 tevent_req_error(req, ENOTCONN);
1843 ret = close(bsds->fd);
1845 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1846 if (tevent_req_error(req, err)) {
1850 tevent_req_done(req);
1852 tevent_req_post(req, ev);
1856 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1861 ret = tsocket_simple_int_recv(req, perrno);
1863 tevent_req_received(req);
1867 static const struct tstream_context_ops tstream_bsd_ops = {
1870 .pending_bytes = tstream_bsd_pending_bytes,
1872 .readv_send = tstream_bsd_readv_send,
1873 .readv_recv = tstream_bsd_readv_recv,
1875 .writev_send = tstream_bsd_writev_send,
1876 .writev_recv = tstream_bsd_writev_recv,
1878 .disconnect_send = tstream_bsd_disconnect_send,
1879 .disconnect_recv = tstream_bsd_disconnect_recv,
1882 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1884 TALLOC_FREE(bsds->fde);
1885 if (bsds->fd != -1) {
1892 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1894 struct tstream_context **_stream,
1895 const char *location)
1897 struct tstream_context *stream;
1898 struct tstream_bsd *bsds;
1900 stream = tstream_context_create(mem_ctx,
1910 talloc_set_destructor(bsds, tstream_bsd_destructor);
1916 struct tstream_bsd_connect_state {
1918 struct tevent_fd *fde;
1919 struct tstream_conext *stream;
1922 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1924 TALLOC_FREE(state->fde);
1925 if (state->fd != -1) {
1933 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1934 struct tevent_fd *fde,
1936 void *private_data);
1938 static struct tevent_req * tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
1939 struct tevent_context *ev,
1941 const struct tsocket_address *local,
1942 const struct tsocket_address *remote)
1944 struct tevent_req *req;
1945 struct tstream_bsd_connect_state *state;
1946 struct tsocket_address_bsd *lbsda =
1947 talloc_get_type_abort(local->private_data,
1948 struct tsocket_address_bsd);
1949 struct tsocket_address_bsd *rbsda =
1950 talloc_get_type_abort(remote->private_data,
1951 struct tsocket_address_bsd);
1955 bool do_bind = false;
1956 bool do_reuseaddr = false;
1957 bool do_ipv6only = false;
1958 bool is_inet = false;
1959 int sa_fam = lbsda->u.sa.sa_family;
1961 req = tevent_req_create(mem_ctx, &state,
1962 struct tstream_bsd_connect_state);
1969 talloc_set_destructor(state, tstream_bsd_connect_destructor);
1971 /* give the wrappers a chance to report an error */
1972 if (sys_errno != 0) {
1973 tevent_req_error(req, sys_errno);
1977 switch (lbsda->u.sa.sa_family) {
1979 if (lbsda->u.un.sun_path[0] != 0) {
1980 do_reuseaddr = true;
1985 if (lbsda->u.in.sin_port != 0) {
1986 do_reuseaddr = true;
1989 if (lbsda->u.in.sin_addr.s_addr != INADDR_ANY) {
1996 if (lbsda->u.in6.sin6_port != 0) {
1997 do_reuseaddr = true;
2000 if (memcmp(&in6addr_any,
2001 &lbsda->u.in6.sin6_addr,
2002 sizeof(in6addr_any)) != 0) {
2010 tevent_req_error(req, EINVAL);
2014 if (!do_bind && is_inet) {
2015 sa_fam = rbsda->u.sa.sa_family;
2018 do_ipv6only = false;
2028 state->fd = socket(sa_fam, SOCK_STREAM, 0);
2029 if (state->fd == -1) {
2030 tevent_req_error(req, errno);
2034 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
2035 if (state->fd == -1) {
2036 tevent_req_error(req, errno);
2040 #if defined(HAVE_IPV6) && defined(IPV6_V6ONLY)
2044 ret = setsockopt(state->fd, IPPROTO_IPV6, IPV6_V6ONLY,
2045 (const void *)&val, sizeof(val));
2047 tevent_req_error(req, errno);
2056 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
2057 (const void *)&val, sizeof(val));
2059 tevent_req_error(req, errno);
2065 ret = bind(state->fd, &lbsda->u.sa, lbsda->sa_socklen);
2067 tevent_req_error(req, errno);
2072 if (rbsda->u.sa.sa_family != sa_fam) {
2073 tevent_req_error(req, EINVAL);
2077 ret = connect(state->fd, &rbsda->u.sa, rbsda->sa_socklen);
2078 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2083 if (tevent_req_error(req, err)) {
2087 tevent_req_done(req);
2091 state->fde = tevent_add_fd(ev, state,
2093 TEVENT_FD_READ | TEVENT_FD_WRITE,
2094 tstream_bsd_connect_fde_handler,
2096 if (tevent_req_nomem(state->fde, req)) {
2103 tevent_req_post(req, ev);
2107 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
2108 struct tevent_fd *fde,
2112 struct tevent_req *req = talloc_get_type_abort(private_data,
2114 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2115 struct tstream_bsd_connect_state);
2118 socklen_t len = sizeof(error);
2122 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
2129 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2134 if (tevent_req_error(req, err)) {
2138 tevent_req_done(req);
2141 static int tstream_bsd_connect_recv(struct tevent_req *req,
2143 TALLOC_CTX *mem_ctx,
2144 struct tstream_context **stream,
2145 const char *location)
2147 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2148 struct tstream_bsd_connect_state);
2151 ret = tsocket_simple_int_recv(req, perrno);
2153 ret = _tstream_bsd_existing_socket(mem_ctx,
2161 TALLOC_FREE(state->fde);
2166 tevent_req_received(req);
2170 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2171 struct tevent_context *ev,
2172 const struct tsocket_address *local,
2173 const struct tsocket_address *remote)
2175 struct tsocket_address_bsd *lbsda =
2176 talloc_get_type_abort(local->private_data,
2177 struct tsocket_address_bsd);
2178 struct tevent_req *req;
2181 switch (lbsda->u.sa.sa_family) {
2193 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2198 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2200 TALLOC_CTX *mem_ctx,
2201 struct tstream_context **stream,
2202 const char *location)
2204 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2207 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2208 struct tevent_context *ev,
2209 const struct tsocket_address *local,
2210 const struct tsocket_address *remote)
2212 struct tsocket_address_bsd *lbsda =
2213 talloc_get_type_abort(local->private_data,
2214 struct tsocket_address_bsd);
2215 struct tevent_req *req;
2218 switch (lbsda->u.sa.sa_family) {
2226 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2231 int _tstream_unix_connect_recv(struct tevent_req *req,
2233 TALLOC_CTX *mem_ctx,
2234 struct tstream_context **stream,
2235 const char *location)
2237 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2240 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2241 struct tstream_context **_stream1,
2242 TALLOC_CTX *mem_ctx2,
2243 struct tstream_context **_stream2,
2244 const char *location)
2250 struct tstream_context *stream1 = NULL;
2251 struct tstream_context *stream2 = NULL;
2253 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2260 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2262 int sys_errno = errno;
2268 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2270 int sys_errno = errno;
2276 ret = _tstream_bsd_existing_socket(mem_ctx1,
2281 int sys_errno = errno;
2288 ret = _tstream_bsd_existing_socket(mem_ctx2,
2293 int sys_errno = errno;
2294 talloc_free(stream1);
2300 *_stream1 = stream1;
2301 *_stream2 = stream2;