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 2 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, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include "lib/socket/socket.h"
24 #include "system/network.h"
26 static struct in6_addr interpret_addr6(const char *name)
30 if (name == NULL) return in6addr_any;
32 he = gethostbyname2(name, PF_INET6);
34 if (he == NULL) return in6addr_any;
36 return *((struct in6_addr *)he->h_addr);
39 static NTSTATUS ipv6_tcp_init(struct socket_context *sock)
41 sock->fd = socket(PF_INET6, SOCK_STREAM, 0);
43 return map_nt_error_from_unix(errno);
46 sock->backend_name = "ipv6";
51 static void ipv6_tcp_close(struct socket_context *sock)
56 static NTSTATUS ipv6_tcp_connect_complete(struct socket_context *sock, uint32_t flags)
59 socklen_t len = sizeof(error);
61 /* check for any errors that may have occurred - this is needed
62 for non-blocking connect */
63 ret = getsockopt(sock->fd, SOL_SOCKET, SO_ERROR, &error, &len);
65 return map_nt_error_from_unix(errno);
68 return map_nt_error_from_unix(error);
71 if (!(flags & SOCKET_FLAG_BLOCK)) {
72 ret = set_blocking(sock->fd, False);
74 return map_nt_error_from_unix(errno);
78 sock->state = SOCKET_STATE_CLIENT_CONNECTED;
83 static NTSTATUS ipv6_tcp_connect(struct socket_context *sock,
84 const struct socket_address *my_address,
85 const struct socket_address *srv_address,
90 if (my_address && my_address->sockaddr) {
91 ret = bind(sock->fd, my_address->sockaddr, my_address->sockaddrlen);
93 return map_nt_error_from_unix(errno);
95 } else if (my_address) {
96 struct in6_addr my_ip;
97 my_ip = interpret_addr6(my_address->addr);
99 if (memcmp(&my_ip, &in6addr_any, sizeof(my_ip)) || my_address->port != 0) {
100 struct sockaddr_in6 my_addr;
101 ZERO_STRUCT(my_addr);
102 my_addr.sin6_addr = my_ip;
103 my_addr.sin6_port = htons(my_address->port);
104 my_addr.sin6_family = PF_INET6;
106 ret = bind(sock->fd, (struct sockaddr *)&my_addr, sizeof(my_addr));
108 return map_nt_error_from_unix(errno);
113 if (srv_address->sockaddr) {
114 ret = connect(sock->fd, srv_address->sockaddr, srv_address->sockaddrlen);
116 struct in6_addr srv_ip;
117 struct sockaddr_in6 srv_addr;
118 srv_ip = interpret_addr6(srv_address->addr);
119 if (memcmp(&srv_ip, &in6addr_any, sizeof(srv_ip)) == 0) {
120 return NT_STATUS_BAD_NETWORK_NAME;
123 ZERO_STRUCT(srv_addr);
124 srv_addr.sin6_addr = srv_ip;
125 srv_addr.sin6_port = htons(srv_address->port);
126 srv_addr.sin6_family = PF_INET6;
128 ret = connect(sock->fd, (const struct sockaddr *)&srv_addr, sizeof(srv_addr));
131 return map_nt_error_from_unix(errno);
134 return ipv6_tcp_connect_complete(sock, flags);
137 static NTSTATUS ipv6_tcp_listen(struct socket_context *sock,
138 const struct socket_address *my_address,
139 int queue_size, uint32_t flags)
141 struct sockaddr_in6 my_addr;
142 struct in6_addr ip_addr;
145 socket_set_option(sock, "SO_REUSEADDR=1", NULL);
147 if (my_address->sockaddr) {
148 ret = bind(sock->fd, my_address->sockaddr, my_address->sockaddrlen);
150 ip_addr = interpret_addr6(my_address->addr);
152 ZERO_STRUCT(my_addr);
153 my_addr.sin6_addr = ip_addr;
154 my_addr.sin6_port = htons(my_address->port);
155 my_addr.sin6_family = PF_INET6;
157 ret = bind(sock->fd, (struct sockaddr *)&my_addr, sizeof(my_addr));
161 return map_nt_error_from_unix(errno);
164 ret = listen(sock->fd, queue_size);
166 return map_nt_error_from_unix(errno);
169 if (!(flags & SOCKET_FLAG_BLOCK)) {
170 ret = set_blocking(sock->fd, False);
172 return map_nt_error_from_unix(errno);
176 sock->state= SOCKET_STATE_SERVER_LISTEN;
181 static NTSTATUS ipv6_tcp_accept(struct socket_context *sock, struct socket_context **new_sock)
183 struct sockaddr_in cli_addr;
184 socklen_t cli_addr_len = sizeof(cli_addr);
187 new_fd = accept(sock->fd, (struct sockaddr *)&cli_addr, &cli_addr_len);
189 return map_nt_error_from_unix(errno);
192 if (!(sock->flags & SOCKET_FLAG_BLOCK)) {
193 int ret = set_blocking(new_fd, False);
196 return map_nt_error_from_unix(errno);
200 /* TODO: we could add a 'accept_check' hook here
201 * which get the black/white lists via socket_set_accept_filter()
202 * or something like that
206 (*new_sock) = talloc(NULL, struct socket_context);
209 return NT_STATUS_NO_MEMORY;
212 /* copy the socket_context */
213 (*new_sock)->type = sock->type;
214 (*new_sock)->state = SOCKET_STATE_SERVER_CONNECTED;
215 (*new_sock)->flags = sock->flags;
217 (*new_sock)->fd = new_fd;
219 (*new_sock)->private_data = NULL;
220 (*new_sock)->ops = sock->ops;
221 (*new_sock)->backend_name = sock->backend_name;
226 static NTSTATUS ipv6_tcp_recv(struct socket_context *sock, void *buf,
227 size_t wantlen, size_t *nread, uint32_t flags)
232 /* TODO: we need to map all flags here */
233 if (flags & SOCKET_FLAG_PEEK) {
237 if (flags & SOCKET_FLAG_BLOCK) {
243 gotlen = recv(sock->fd, buf, wantlen, flgs);
245 return NT_STATUS_END_OF_FILE;
246 } else if (gotlen == -1) {
247 return map_nt_error_from_unix(errno);
255 static NTSTATUS ipv6_tcp_send(struct socket_context *sock,
256 const DATA_BLOB *blob, size_t *sendlen, uint32_t flags)
263 len = send(sock->fd, blob->data, blob->length, flgs);
265 return map_nt_error_from_unix(errno);
273 static NTSTATUS ipv6_tcp_set_option(struct socket_context *sock, const char *option, const char *val)
275 set_socket_options(sock->fd, option);
279 static char *ipv6_tcp_get_peer_name(struct socket_context *sock, TALLOC_CTX *mem_ctx)
281 struct sockaddr_in6 peer_addr;
282 socklen_t len = sizeof(peer_addr);
286 ret = getpeername(sock->fd, (struct sockaddr *)&peer_addr, &len);
291 he = gethostbyaddr((char *)&peer_addr.sin6_addr, sizeof(peer_addr.sin6_addr), AF_INET6);
296 return talloc_strdup(mem_ctx, he->h_name);
299 static struct socket_address *ipv6_tcp_get_peer_addr(struct socket_context *sock, TALLOC_CTX *mem_ctx)
301 struct sockaddr_in6 *peer_addr;
302 socklen_t len = sizeof(*peer_addr);
303 struct socket_address *peer;
307 peer = talloc(mem_ctx, struct socket_address);
312 peer->family = sock->backend_name;
313 peer_addr = talloc(peer, struct sockaddr_in6);
319 peer->sockaddr = (struct sockaddr *)peer_addr;
321 ret = getpeername(sock->fd, peer->sockaddr, &len);
327 peer->sockaddrlen = len;
329 he = gethostbyaddr((char *)&peer_addr->sin6_addr, len, AF_INET6);
331 if (!he || !he->h_name) {
336 peer->addr = talloc_strdup(mem_ctx, he->h_name);
341 peer->port = ntohs(peer_addr->sin6_port);
346 static struct socket_address *ipv6_tcp_get_my_addr(struct socket_context *sock, TALLOC_CTX *mem_ctx)
348 struct sockaddr_in6 *local_addr;
349 socklen_t len = sizeof(*local_addr);
350 struct socket_address *local;
354 local = talloc(mem_ctx, struct socket_address);
359 local->family = sock->backend_name;
360 local_addr = talloc(local, struct sockaddr_in6);
366 local->sockaddr = (struct sockaddr *)local_addr;
368 ret = getsockname(sock->fd, local->sockaddr, &len);
374 local->sockaddrlen = len;
376 he = gethostbyaddr((char *)&local_addr->sin6_addr, len, AF_INET6);
378 if (!he || !he->h_name) {
383 local->addr = talloc_strdup(mem_ctx, he->h_name);
388 local->port = ntohs(local_addr->sin6_port);
393 static int ipv6_tcp_get_fd(struct socket_context *sock)
398 static const struct socket_ops ipv6_tcp_ops = {
400 .fn_init = ipv6_tcp_init,
401 .fn_connect = ipv6_tcp_connect,
402 .fn_connect_complete = ipv6_tcp_connect_complete,
403 .fn_listen = ipv6_tcp_listen,
404 .fn_accept = ipv6_tcp_accept,
405 .fn_recv = ipv6_tcp_recv,
406 .fn_send = ipv6_tcp_send,
407 .fn_close = ipv6_tcp_close,
409 .fn_set_option = ipv6_tcp_set_option,
411 .fn_get_peer_name = ipv6_tcp_get_peer_name,
412 .fn_get_peer_addr = ipv6_tcp_get_peer_addr,
413 .fn_get_my_addr = ipv6_tcp_get_my_addr,
415 .fn_get_fd = ipv6_tcp_get_fd
418 const struct socket_ops *socket_ipv6_ops(enum socket_type type)
420 if (type != SOCKET_TYPE_STREAM) {
423 return &ipv6_tcp_ops;