2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan Metzmacher 2004
5 Copyright (C) Jelmer Vernooij 2004
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "lib/socket/socket.h"
23 #include "system/filesys.h" /* needed for close() */
24 #include "system/network.h"
26 static struct in6_addr interpret_addr6(const char *name)
30 if (name == NULL) return in6addr_any;
32 if (strcasecmp(name, "localhost") == 0) {
36 he = gethostbyname2(name, PF_INET6);
38 if (he == NULL) return in6addr_any;
40 return *((struct in6_addr *)he->h_addr);
43 static NTSTATUS ipv6_tcp_init(struct socket_context *sock)
45 sock->fd = socket(PF_INET6, SOCK_STREAM, 0);
47 return map_nt_error_from_unix(errno);
50 sock->backend_name = "ipv6";
55 static void ipv6_tcp_close(struct socket_context *sock)
60 static NTSTATUS ipv6_tcp_connect_complete(struct socket_context *sock, uint32_t flags)
63 socklen_t len = sizeof(error);
65 /* check for any errors that may have occurred - this is needed
66 for non-blocking connect */
67 ret = getsockopt(sock->fd, SOL_SOCKET, SO_ERROR, &error, &len);
69 return map_nt_error_from_unix(errno);
72 return map_nt_error_from_unix(error);
75 if (!(flags & SOCKET_FLAG_BLOCK)) {
76 ret = set_blocking(sock->fd, False);
78 return map_nt_error_from_unix(errno);
82 sock->state = SOCKET_STATE_CLIENT_CONNECTED;
87 static NTSTATUS ipv6_tcp_connect(struct socket_context *sock,
88 const struct socket_address *my_address,
89 const struct socket_address *srv_address,
94 if (my_address && my_address->sockaddr) {
95 ret = bind(sock->fd, my_address->sockaddr, my_address->sockaddrlen);
97 return map_nt_error_from_unix(errno);
99 } else if (my_address) {
100 struct in6_addr my_ip;
101 my_ip = interpret_addr6(my_address->addr);
103 if (memcmp(&my_ip, &in6addr_any, sizeof(my_ip)) || my_address->port != 0) {
104 struct sockaddr_in6 my_addr;
105 ZERO_STRUCT(my_addr);
106 my_addr.sin6_addr = my_ip;
107 my_addr.sin6_port = htons(my_address->port);
108 my_addr.sin6_family = PF_INET6;
110 ret = bind(sock->fd, (struct sockaddr *)&my_addr, sizeof(my_addr));
112 return map_nt_error_from_unix(errno);
117 if (srv_address->sockaddr) {
118 ret = connect(sock->fd, srv_address->sockaddr, srv_address->sockaddrlen);
120 struct in6_addr srv_ip;
121 struct sockaddr_in6 srv_addr;
122 srv_ip = interpret_addr6(srv_address->addr);
123 if (memcmp(&srv_ip, &in6addr_any, sizeof(srv_ip)) == 0) {
124 return NT_STATUS_BAD_NETWORK_NAME;
127 ZERO_STRUCT(srv_addr);
128 srv_addr.sin6_addr = srv_ip;
129 srv_addr.sin6_port = htons(srv_address->port);
130 srv_addr.sin6_family = PF_INET6;
132 ret = connect(sock->fd, (const struct sockaddr *)&srv_addr, sizeof(srv_addr));
135 return map_nt_error_from_unix(errno);
138 return ipv6_tcp_connect_complete(sock, flags);
141 static NTSTATUS ipv6_tcp_listen(struct socket_context *sock,
142 const struct socket_address *my_address,
143 int queue_size, uint32_t flags)
145 struct sockaddr_in6 my_addr;
146 struct in6_addr ip_addr;
149 socket_set_option(sock, "SO_REUSEADDR=1", NULL);
151 if (my_address->sockaddr) {
152 ret = bind(sock->fd, my_address->sockaddr, my_address->sockaddrlen);
154 ip_addr = interpret_addr6(my_address->addr);
156 ZERO_STRUCT(my_addr);
157 my_addr.sin6_addr = ip_addr;
158 my_addr.sin6_port = htons(my_address->port);
159 my_addr.sin6_family = PF_INET6;
161 ret = bind(sock->fd, (struct sockaddr *)&my_addr, sizeof(my_addr));
165 return map_nt_error_from_unix(errno);
168 if (sock->type == SOCKET_TYPE_STREAM) {
169 ret = listen(sock->fd, queue_size);
171 return map_nt_error_from_unix(errno);
175 if (!(flags & SOCKET_FLAG_BLOCK)) {
176 ret = set_blocking(sock->fd, False);
178 return map_nt_error_from_unix(errno);
182 sock->state= SOCKET_STATE_SERVER_LISTEN;
187 static NTSTATUS ipv6_tcp_accept(struct socket_context *sock, struct socket_context **new_sock)
189 struct sockaddr_in cli_addr;
190 socklen_t cli_addr_len = sizeof(cli_addr);
193 if (sock->type != SOCKET_TYPE_STREAM) {
194 return NT_STATUS_INVALID_PARAMETER;
198 new_fd = accept(sock->fd, (struct sockaddr *)&cli_addr, &cli_addr_len);
200 return map_nt_error_from_unix(errno);
203 if (!(sock->flags & SOCKET_FLAG_BLOCK)) {
204 int ret = set_blocking(new_fd, False);
207 return map_nt_error_from_unix(errno);
211 /* TODO: we could add a 'accept_check' hook here
212 * which get the black/white lists via socket_set_accept_filter()
213 * or something like that
217 (*new_sock) = talloc(NULL, struct socket_context);
220 return NT_STATUS_NO_MEMORY;
223 /* copy the socket_context */
224 (*new_sock)->type = sock->type;
225 (*new_sock)->state = SOCKET_STATE_SERVER_CONNECTED;
226 (*new_sock)->flags = sock->flags;
228 (*new_sock)->fd = new_fd;
230 (*new_sock)->private_data = NULL;
231 (*new_sock)->ops = sock->ops;
232 (*new_sock)->backend_name = sock->backend_name;
237 static NTSTATUS ipv6_tcp_recv(struct socket_context *sock, void *buf,
238 size_t wantlen, size_t *nread)
244 gotlen = recv(sock->fd, buf, wantlen, 0);
246 return NT_STATUS_END_OF_FILE;
247 } else if (gotlen == -1) {
248 return map_nt_error_from_unix(errno);
256 static NTSTATUS ipv6_recvfrom(struct socket_context *sock, void *buf,
257 size_t wantlen, size_t *nread,
258 TALLOC_CTX *addr_ctx, struct socket_address **_src)
261 struct sockaddr_in6 *from_addr;
262 socklen_t from_len = sizeof(*from_addr);
263 struct socket_address *src;
266 src = talloc(addr_ctx, struct socket_address);
268 return NT_STATUS_NO_MEMORY;
271 src->family = sock->backend_name;
273 from_addr = talloc(src, struct sockaddr_in6);
276 return NT_STATUS_NO_MEMORY;
279 src->sockaddr = (struct sockaddr *)from_addr;
283 gotlen = recvfrom(sock->fd, buf, wantlen, 0,
284 src->sockaddr, &from_len);
287 return NT_STATUS_END_OF_FILE;
288 } else if (gotlen == -1) {
290 return map_nt_error_from_unix(errno);
293 src->sockaddrlen = from_len;
295 he = gethostbyaddr((void *)&from_addr->sin6_addr, sizeof(from_addr->sin6_addr), AF_INET6);
298 return NT_STATUS_INTERNAL_ERROR;
300 src->addr = talloc_strdup(src, he->h_name);
301 if (src->addr == NULL) {
303 return NT_STATUS_NO_MEMORY;
305 src->port = ntohs(from_addr->sin6_port);
312 static NTSTATUS ipv6_tcp_send(struct socket_context *sock,
313 const DATA_BLOB *blob, size_t *sendlen)
319 len = send(sock->fd, blob->data, blob->length, 0);
321 return map_nt_error_from_unix(errno);
329 static NTSTATUS ipv6_sendto(struct socket_context *sock,
330 const DATA_BLOB *blob, size_t *sendlen,
331 const struct socket_address *dest_addr)
335 if (dest_addr->sockaddr) {
336 len = sendto(sock->fd, blob->data, blob->length, 0,
337 dest_addr->sockaddr, dest_addr->sockaddrlen);
339 struct sockaddr_in6 srv_addr;
340 struct in6_addr addr;
342 ZERO_STRUCT(srv_addr);
343 addr = interpret_addr6(dest_addr->addr);
344 if (addr.s6_addr == 0) {
345 return NT_STATUS_HOST_UNREACHABLE;
347 srv_addr.sin6_addr = addr;
348 srv_addr.sin6_port = htons(dest_addr->port);
349 srv_addr.sin6_family = PF_INET6;
353 len = sendto(sock->fd, blob->data, blob->length, 0,
354 (struct sockaddr *)&srv_addr, sizeof(srv_addr));
357 return map_nt_error_from_unix(errno);
365 static NTSTATUS ipv6_tcp_set_option(struct socket_context *sock, const char *option, const char *val)
367 set_socket_options(sock->fd, option);
371 static char *ipv6_tcp_get_peer_name(struct socket_context *sock, TALLOC_CTX *mem_ctx)
373 struct sockaddr_in6 peer_addr;
374 socklen_t len = sizeof(peer_addr);
378 ret = getpeername(sock->fd, (struct sockaddr *)&peer_addr, &len);
383 he = gethostbyaddr((char *)&peer_addr.sin6_addr, sizeof(peer_addr.sin6_addr), AF_INET6);
388 return talloc_strdup(mem_ctx, he->h_name);
391 static struct socket_address *ipv6_tcp_get_peer_addr(struct socket_context *sock, TALLOC_CTX *mem_ctx)
393 struct sockaddr_in6 *peer_addr;
394 socklen_t len = sizeof(*peer_addr);
395 struct socket_address *peer;
398 const char *addr_ret;
400 peer = talloc(mem_ctx, struct socket_address);
405 peer->family = sock->backend_name;
406 peer_addr = talloc(peer, struct sockaddr_in6);
412 peer->sockaddr = (struct sockaddr *)peer_addr;
414 ret = getpeername(sock->fd, peer->sockaddr, &len);
420 peer->sockaddrlen = len;
422 addr_ret = inet_ntop(AF_INET6, &peer_addr->sin6_addr, addr, sizeof(addr));
423 if (addr_ret == NULL) {
428 peer->addr = talloc_strdup(peer, addr_ret);
429 if (peer->addr == NULL) {
434 peer->port = ntohs(peer_addr->sin6_port);
439 static struct socket_address *ipv6_tcp_get_my_addr(struct socket_context *sock, TALLOC_CTX *mem_ctx)
441 struct sockaddr_in6 *local_addr;
442 socklen_t len = sizeof(*local_addr);
443 struct socket_address *local;
447 local = talloc(mem_ctx, struct socket_address);
452 local->family = sock->backend_name;
453 local_addr = talloc(local, struct sockaddr_in6);
459 local->sockaddr = (struct sockaddr *)local_addr;
461 ret = getsockname(sock->fd, local->sockaddr, &len);
467 local->sockaddrlen = len;
469 he = gethostbyaddr((char *)&local_addr->sin6_addr, len, AF_INET6);
471 if (!he || !he->h_name) {
476 local->addr = talloc_strdup(mem_ctx, he->h_name);
481 local->port = ntohs(local_addr->sin6_port);
486 static int ipv6_tcp_get_fd(struct socket_context *sock)
491 static NTSTATUS ipv6_pending(struct socket_context *sock, size_t *npending)
494 if (ioctl(sock->fd, FIONREAD, &value) == 0) {
498 return map_nt_error_from_unix(errno);
501 static const struct socket_ops ipv6_tcp_ops = {
503 .fn_init = ipv6_tcp_init,
504 .fn_connect = ipv6_tcp_connect,
505 .fn_connect_complete = ipv6_tcp_connect_complete,
506 .fn_listen = ipv6_tcp_listen,
507 .fn_accept = ipv6_tcp_accept,
508 .fn_recv = ipv6_tcp_recv,
509 .fn_recvfrom = ipv6_recvfrom,
510 .fn_sendto = ipv6_sendto,
511 .fn_send = ipv6_tcp_send,
512 .fn_close = ipv6_tcp_close,
513 .fn_pending = ipv6_pending,
515 .fn_set_option = ipv6_tcp_set_option,
517 .fn_get_peer_name = ipv6_tcp_get_peer_name,
518 .fn_get_peer_addr = ipv6_tcp_get_peer_addr,
519 .fn_get_my_addr = ipv6_tcp_get_my_addr,
521 .fn_get_fd = ipv6_tcp_get_fd
524 const struct socket_ops *socket_ipv6_ops(enum socket_type type)
526 return &ipv6_tcp_ops;