1 /*-
2  * Copyright (c) 2000 Assar Westerlund
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer
10  *    in this position and unchanged.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _LINUX_SOCKET_H_
32 #define _LINUX_SOCKET_H_
33 
34 /* msg flags in recvfrom/recvmsg */
35 
36 #define LINUX_MSG_OOB		0x01
37 #define LINUX_MSG_PEEK		0x02
38 #define LINUX_MSG_DONTROUTE	0x04
39 #define LINUX_MSG_CTRUNC	0x08
40 #define LINUX_MSG_PROXY		0x10
41 #define LINUX_MSG_TRUNC		0x20
42 #define LINUX_MSG_DONTWAIT	0x40
43 #define LINUX_MSG_EOR		0x80
44 #define LINUX_MSG_WAITALL	0x100
45 #define LINUX_MSG_FIN		0x200
46 #define LINUX_MSG_SYN		0x400
47 #define LINUX_MSG_CONFIRM	0x800
48 #define LINUX_MSG_RST		0x1000
49 #define LINUX_MSG_ERRQUEUE	0x2000
50 #define LINUX_MSG_NOSIGNAL	0x4000
51 #define LINUX_MSG_WAITFORONE	0x10000
52 #define LINUX_MSG_CMSG_CLOEXEC	0x40000000
53 
54 /* Socket-level control message types */
55 
56 #define LINUX_SCM_RIGHTS	0x01
57 #define LINUX_SCM_CREDENTIALS   0x02
58 
59 struct l_msghdr {
60 	l_uintptr_t	msg_name;
61 	l_int		msg_namelen;
62 	l_uintptr_t	msg_iov;
63 	l_size_t	msg_iovlen;
64 	l_uintptr_t	msg_control;
65 	l_size_t	msg_controllen;
66 	l_uint		msg_flags;
67 };
68 
69 struct l_mmsghdr {
70 	struct l_msghdr	msg_hdr;
71 	l_uint		msg_len;
72 
73 };
74 
75 struct l_cmsghdr {
76 	l_size_t	cmsg_len;
77 	l_int		cmsg_level;
78 	l_int		cmsg_type;
79 };
80 
81 /* Ancilliary data object information macros */
82 
83 #define LINUX_CMSG_ALIGN(len)	roundup2(len, sizeof(l_ulong))
84 #define LINUX_CMSG_DATA(cmsg)	((void *)((char *)(cmsg) + \
85 				    LINUX_CMSG_ALIGN(sizeof(struct l_cmsghdr))))
86 #define LINUX_CMSG_SPACE(len)	(LINUX_CMSG_ALIGN(sizeof(struct l_cmsghdr)) + \
87 				    LINUX_CMSG_ALIGN(len))
88 #define LINUX_CMSG_LEN(len)	(LINUX_CMSG_ALIGN(sizeof(struct l_cmsghdr)) + \
89 				    (len))
90 #define LINUX_CMSG_FIRSTHDR(msg) \
91 				((msg)->msg_controllen >= \
92 				    sizeof(struct l_cmsghdr) ? \
93 				    (struct l_cmsghdr *) \
94 				        PTRIN((msg)->msg_control) : \
95 				    (struct l_cmsghdr *)(NULL))
96 #define LINUX_CMSG_NXTHDR(msg, cmsg) \
97 				((((char *)(cmsg) + \
98 				    LINUX_CMSG_ALIGN((cmsg)->cmsg_len) + \
99 				    sizeof(*(cmsg))) > \
100 				    (((char *)PTRIN((msg)->msg_control)) + \
101 				    (msg)->msg_controllen)) ? \
102 				    (struct l_cmsghdr *) NULL : \
103 				    (struct l_cmsghdr *)((char *)(cmsg) + \
104 				    LINUX_CMSG_ALIGN((cmsg)->cmsg_len)))
105 
106 #define CMSG_HDRSZ		CMSG_LEN(0)
107 #define L_CMSG_HDRSZ		LINUX_CMSG_LEN(0)
108 
109 /* Supported address families */
110 
111 #define	LINUX_AF_UNSPEC		0
112 #define	LINUX_AF_UNIX		1
113 #define	LINUX_AF_INET		2
114 #define	LINUX_AF_AX25		3
115 #define	LINUX_AF_IPX		4
116 #define	LINUX_AF_APPLETALK	5
117 #define	LINUX_AF_INET6		10
118 
119 /* Supported socket types */
120 
121 #define	LINUX_SOCK_STREAM	1
122 #define	LINUX_SOCK_DGRAM	2
123 #define	LINUX_SOCK_RAW		3
124 #define	LINUX_SOCK_RDM		4
125 #define	LINUX_SOCK_SEQPACKET	5
126 
127 #define	LINUX_SOCK_MAX		LINUX_SOCK_SEQPACKET
128 
129 #define	LINUX_SOCK_TYPE_MASK	0xf
130 
131 /* Flags for socket, socketpair, accept4 */
132 
133 #define	LINUX_SOCK_CLOEXEC	LINUX_O_CLOEXEC
134 #define	LINUX_SOCK_NONBLOCK	LINUX_O_NONBLOCK
135 
136 struct l_ucred {
137 	uint32_t	pid;
138 	uint32_t	uid;
139 	uint32_t	gid;
140 };
141 
142 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
143 
144 struct linux_sendto_args {
145 	int s;
146 	l_uintptr_t msg;
147 	int len;
148 	int flags;
149 	l_uintptr_t to;
150 	int tolen;
151 };
152 
153 struct linux_socket_args {
154 	int domain;
155 	int type;
156 	int protocol;
157 };
158 
159 struct linux_bind_args {
160 	int s;
161 	l_uintptr_t name;
162 	int namelen;
163 };
164 
165 struct linux_connect_args {
166 	int s;
167 	l_uintptr_t name;
168 	int namelen;
169 };
170 
171 struct linux_listen_args {
172 	int s;
173 	int backlog;
174 };
175 
176 struct linux_accept_args {
177 	int s;
178 	l_uintptr_t addr;
179 	l_uintptr_t namelen;
180 };
181 
182 struct linux_accept4_args {
183 	int s;
184 	l_uintptr_t addr;
185 	l_uintptr_t namelen;
186 	int flags;
187 };
188 
189 struct linux_getsockname_args {
190 	int s;
191 	l_uintptr_t addr;
192 	l_uintptr_t namelen;
193 };
194 
195 struct linux_getpeername_args {
196 	int s;
197 	l_uintptr_t addr;
198 	l_uintptr_t namelen;
199 };
200 
201 struct linux_socketpair_args {
202 	int domain;
203 	int type;
204 	int protocol;
205 	l_uintptr_t rsv;
206 };
207 
208 struct linux_recvfrom_args {
209 	int s;
210 	l_uintptr_t buf;
211 	int len;
212 	int flags;
213 	l_uintptr_t from;
214 	l_uintptr_t fromlen;
215 };
216 
217 struct linux_sendmsg_args {
218 	int s;
219 	l_uintptr_t msg;
220 	int flags;
221 };
222 
223 struct linux_recvmsg_args {
224 	int s;
225 	l_uintptr_t msg;
226 	int flags;
227 };
228 
229 struct linux_shutdown_args {
230 	int s;
231 	int how;
232 };
233 
234 struct linux_setsockopt_args {
235 	int s;
236 	int level;
237 	int optname;
238 	l_uintptr_t optval;
239 	int optlen;
240 };
241 
242 struct linux_getsockopt_args {
243 	int s;
244 	int level;
245 	int optname;
246 	l_uintptr_t optval;
247 	l_uintptr_t optlen;
248 };
249 
250 int linux_socket(struct thread *td, struct linux_socket_args *args);
251 int linux_bind(struct thread *td, struct linux_bind_args *args);
252 int linux_connect(struct thread *, struct linux_connect_args *);
253 int linux_listen(struct thread *td, struct linux_listen_args *args);
254 int linux_accept(struct thread *td, struct linux_accept_args *args);
255 int linux_accept4(struct thread *td, struct linux_accept4_args *args);
256 int linux_getsockname(struct thread *td, struct linux_getsockname_args *args);
257 int linux_getpeername(struct thread *td, struct linux_getpeername_args *args);
258 int linux_socketpair(struct thread *td, struct linux_socketpair_args *args);
259 int linux_sendto(struct thread *td, struct linux_sendto_args *args);
260 int linux_recvfrom(struct thread *td, struct linux_recvfrom_args *args);
261 int linux_sendmsg(struct thread *td, struct linux_sendmsg_args *args);
262 int linux_recvmsg(struct thread *td, struct linux_recvmsg_args *args);
263 int linux_shutdown(struct thread *td, struct linux_shutdown_args *args);
264 int linux_setsockopt(struct thread *td, struct linux_setsockopt_args *args);
265 int linux_getsockopt(struct thread *td, struct linux_getsockopt_args *args);
266 
267 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
268 
269 /* Operations for socketcall */
270 
271 #define	LINUX_SOCKET 		1
272 #define	LINUX_BIND		2
273 #define	LINUX_CONNECT 		3
274 #define	LINUX_LISTEN 		4
275 #define	LINUX_ACCEPT 		5
276 #define	LINUX_GETSOCKNAME	6
277 #define	LINUX_GETPEERNAME	7
278 #define	LINUX_SOCKETPAIR	8
279 #define	LINUX_SEND		9
280 #define	LINUX_RECV		10
281 #define	LINUX_SENDTO 		11
282 #define	LINUX_RECVFROM 		12
283 #define	LINUX_SHUTDOWN 		13
284 #define	LINUX_SETSOCKOPT	14
285 #define	LINUX_GETSOCKOPT	15
286 #define	LINUX_SENDMSG		16
287 #define	LINUX_RECVMSG		17
288 #define	LINUX_ACCEPT4		18
289 #define	LINUX_RECVMMSG		19
290 #define	LINUX_SENDMMSG		20
291 
292 /* Socket options */
293 #define	LINUX_IP_TOS		1
294 #define	LINUX_IP_TTL		2
295 #define	LINUX_IP_HDRINCL	3
296 #define	LINUX_IP_OPTIONS	4
297 
298 #define	LINUX_IP_MULTICAST_IF		32
299 #define	LINUX_IP_MULTICAST_TTL		33
300 #define	LINUX_IP_MULTICAST_LOOP		34
301 #define	LINUX_IP_ADD_MEMBERSHIP		35
302 #define	LINUX_IP_DROP_MEMBERSHIP	36
303 
304 #define	LINUX_TCP_NODELAY	1
305 #define	LINUX_TCP_MAXSEG	2
306 #define	LINUX_TCP_KEEPIDLE	4
307 #define	LINUX_TCP_KEEPINTVL	5
308 #define	LINUX_TCP_KEEPCNT	6
309 #define	LINUX_TCP_MD5SIG	14
310 
311 #endif /* _LINUX_SOCKET_H_ */
312