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_CMSG_CLOEXEC	0x40000000
52 
53 /* Socket-level control message types */
54 
55 #define LINUX_SCM_RIGHTS	0x01
56 #define LINUX_SCM_CREDENTIALS   0x02
57 
58 struct l_msghdr {
59 	l_uintptr_t	msg_name;
60 	l_int		msg_namelen;
61 	l_uintptr_t	msg_iov;
62 	l_size_t	msg_iovlen;
63 	l_uintptr_t	msg_control;
64 	l_size_t	msg_controllen;
65 	l_uint		msg_flags;
66 };
67 
68 struct l_cmsghdr {
69 	l_size_t	cmsg_len;
70 	l_int		cmsg_level;
71 	l_int		cmsg_type;
72 };
73 
74 /* Ancilliary data object information macros */
75 
76 #define LINUX_CMSG_ALIGN(len)	roundup2(len, sizeof(l_ulong))
77 #define LINUX_CMSG_DATA(cmsg)	((void *)((char *)(cmsg) + \
78 				    LINUX_CMSG_ALIGN(sizeof(struct l_cmsghdr))))
79 #define LINUX_CMSG_SPACE(len)	(LINUX_CMSG_ALIGN(sizeof(struct l_cmsghdr)) + \
80 				    LINUX_CMSG_ALIGN(len))
81 #define LINUX_CMSG_LEN(len)	(LINUX_CMSG_ALIGN(sizeof(struct l_cmsghdr)) + \
82 				    (len))
83 #define LINUX_CMSG_FIRSTHDR(msg) \
84 				((msg)->msg_controllen >= \
85 				    sizeof(struct l_cmsghdr) ? \
86 				    (struct l_cmsghdr *) \
87 				        PTRIN((msg)->msg_control) : \
88 				    (struct l_cmsghdr *)(NULL))
89 #define LINUX_CMSG_NXTHDR(msg, cmsg) \
90 				((((char *)(cmsg) + \
91 				    LINUX_CMSG_ALIGN((cmsg)->cmsg_len) + \
92 				    sizeof(*(cmsg))) > \
93 				    (((char *)PTRIN((msg)->msg_control)) + \
94 				    (msg)->msg_controllen)) ? \
95 				    (struct l_cmsghdr *) NULL : \
96 				    (struct l_cmsghdr *)((char *)(cmsg) + \
97 				    LINUX_CMSG_ALIGN((cmsg)->cmsg_len)))
98 
99 #define CMSG_HDRSZ		CMSG_LEN(0)
100 #define L_CMSG_HDRSZ		LINUX_CMSG_LEN(0)
101 
102 /* Supported address families */
103 
104 #define	LINUX_AF_UNSPEC		0
105 #define	LINUX_AF_UNIX		1
106 #define	LINUX_AF_INET		2
107 #define	LINUX_AF_AX25		3
108 #define	LINUX_AF_IPX		4
109 #define	LINUX_AF_APPLETALK	5
110 #define	LINUX_AF_INET6		10
111 
112 /* Supported socket types */
113 
114 #define	LINUX_SOCK_STREAM	1
115 #define	LINUX_SOCK_DGRAM	2
116 #define	LINUX_SOCK_RAW		3
117 #define	LINUX_SOCK_RDM		4
118 #define	LINUX_SOCK_SEQPACKET	5
119 
120 #define	LINUX_SOCK_MAX		LINUX_SOCK_SEQPACKET
121 
122 #define	LINUX_SOCK_TYPE_MASK	0xf
123 
124 /* Flags for socket, socketpair, accept4 */
125 
126 #define	LINUX_SOCK_CLOEXEC	LINUX_O_CLOEXEC
127 #define	LINUX_SOCK_NONBLOCK	LINUX_O_NONBLOCK
128 
129 struct l_ucred {
130 	uint32_t	pid;
131 	uint32_t	uid;
132 	uint32_t	gid;
133 };
134 
135 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
136 
137 struct linux_sendto_args {
138 	int s;
139 	l_uintptr_t msg;
140 	int len;
141 	int flags;
142 	l_uintptr_t to;
143 	int tolen;
144 };
145 
146 struct linux_socket_args {
147 	int domain;
148 	int type;
149 	int protocol;
150 };
151 
152 struct linux_bind_args {
153 	int s;
154 	l_uintptr_t name;
155 	int namelen;
156 };
157 
158 struct linux_connect_args {
159 	int s;
160 	l_uintptr_t name;
161 	int namelen;
162 };
163 
164 struct linux_listen_args {
165 	int s;
166 	int backlog;
167 };
168 
169 struct linux_accept_args {
170 	int s;
171 	l_uintptr_t addr;
172 	l_uintptr_t namelen;
173 };
174 
175 struct linux_accept4_args {
176 	int s;
177 	l_uintptr_t addr;
178 	l_uintptr_t namelen;
179 	int flags;
180 };
181 
182 struct linux_getsockname_args {
183 	int s;
184 	l_uintptr_t addr;
185 	l_uintptr_t namelen;
186 };
187 
188 struct linux_getpeername_args {
189 	int s;
190 	l_uintptr_t addr;
191 	l_uintptr_t namelen;
192 };
193 
194 struct linux_socketpair_args {
195 	int domain;
196 	int type;
197 	int protocol;
198 	l_uintptr_t rsv;
199 };
200 
201 struct linux_recvfrom_args {
202 	int s;
203 	l_uintptr_t buf;
204 	int len;
205 	int flags;
206 	l_uintptr_t from;
207 	l_uintptr_t fromlen;
208 };
209 
210 struct linux_sendmsg_args {
211 	int s;
212 	l_uintptr_t msg;
213 	int flags;
214 };
215 
216 struct linux_recvmsg_args {
217 	int s;
218 	l_uintptr_t msg;
219 	int flags;
220 };
221 
222 struct linux_shutdown_args {
223 	int s;
224 	int how;
225 };
226 
227 struct linux_setsockopt_args {
228 	int s;
229 	int level;
230 	int optname;
231 	l_uintptr_t optval;
232 	int optlen;
233 };
234 
235 struct linux_getsockopt_args {
236 	int s;
237 	int level;
238 	int optname;
239 	l_uintptr_t optval;
240 	l_uintptr_t optlen;
241 };
242 
243 int linux_socket(struct thread *td, struct linux_socket_args *args);
244 int linux_bind(struct thread *td, struct linux_bind_args *args);
245 int linux_connect(struct thread *, struct linux_connect_args *);
246 int linux_listen(struct thread *td, struct linux_listen_args *args);
247 int linux_accept(struct thread *td, struct linux_accept_args *args);
248 int linux_accept4(struct thread *td, struct linux_accept4_args *args);
249 int linux_getsockname(struct thread *td, struct linux_getsockname_args *args);
250 int linux_getpeername(struct thread *td, struct linux_getpeername_args *args);
251 int linux_socketpair(struct thread *td, struct linux_socketpair_args *args);
252 int linux_sendto(struct thread *td, struct linux_sendto_args *args);
253 int linux_recvfrom(struct thread *td, struct linux_recvfrom_args *args);
254 int linux_sendmsg(struct thread *td, struct linux_sendmsg_args *args);
255 int linux_recvmsg(struct thread *td, struct linux_recvmsg_args *args);
256 int linux_shutdown(struct thread *td, struct linux_shutdown_args *args);
257 int linux_setsockopt(struct thread *td, struct linux_setsockopt_args *args);
258 int linux_getsockopt(struct thread *td, struct linux_getsockopt_args *args);
259 
260 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
261 
262 /* Operations for socketcall */
263 
264 #define	LINUX_SOCKET 		1
265 #define	LINUX_BIND		2
266 #define	LINUX_CONNECT 		3
267 #define	LINUX_LISTEN 		4
268 #define	LINUX_ACCEPT 		5
269 #define	LINUX_GETSOCKNAME	6
270 #define	LINUX_GETPEERNAME	7
271 #define	LINUX_SOCKETPAIR	8
272 #define	LINUX_SEND		9
273 #define	LINUX_RECV		10
274 #define	LINUX_SENDTO 		11
275 #define	LINUX_RECVFROM 		12
276 #define	LINUX_SHUTDOWN 		13
277 #define	LINUX_SETSOCKOPT	14
278 #define	LINUX_GETSOCKOPT	15
279 #define	LINUX_SENDMSG		16
280 #define	LINUX_RECVMSG		17
281 #define	LINUX_ACCEPT4		18
282 
283 /* Socket options */
284 #define	LINUX_IP_TOS		1
285 #define	LINUX_IP_TTL		2
286 #define	LINUX_IP_HDRINCL	3
287 #define	LINUX_IP_OPTIONS	4
288 
289 #define	LINUX_IP_MULTICAST_IF		32
290 #define	LINUX_IP_MULTICAST_TTL		33
291 #define	LINUX_IP_MULTICAST_LOOP		34
292 #define	LINUX_IP_ADD_MEMBERSHIP		35
293 #define	LINUX_IP_DROP_MEMBERSHIP	36
294 
295 #define	LINUX_TCP_NODELAY	1
296 #define	LINUX_TCP_MAXSEG	2
297 #define	LINUX_TCP_KEEPIDLE	4
298 #define	LINUX_TCP_KEEPINTVL	5
299 #define	LINUX_TCP_KEEPCNT	6
300 #define	LINUX_TCP_MD5SIG	14
301 
302 #endif /* _LINUX_SOCKET_H_ */
303