Commit | Line | Data |
---|---|---|
da7c5cc6 | 1 | /* |
da7c5cc6 | 2 | * |
dbf0c423 | 3 | * %sccs.include.redist.c% |
96e6449f | 4 | * |
01eea121 | 5 | * @(#)uipc_syscalls.c 8.6 (Berkeley) %G% |
da7c5cc6 | 6 | */ |
c8c7dd0e | 7 | |
38a01dbe | 8 | #include <sys/param.h> |
01eea121 | 9 | #include <sys/systm.h> |
38a01dbe KB |
10 | #include <sys/filedesc.h> |
11 | #include <sys/proc.h> | |
12 | #include <sys/file.h> | |
13 | #include <sys/buf.h> | |
14 | #include <sys/malloc.h> | |
15 | #include <sys/mbuf.h> | |
16 | #include <sys/protosw.h> | |
17 | #include <sys/socket.h> | |
18 | #include <sys/socketvar.h> | |
813b7cd1 | 19 | #ifdef KTRACE |
38a01dbe | 20 | #include <sys/ktrace.h> |
813b7cd1 | 21 | #endif |
4147b3f6 | 22 | |
01eea121 CD |
23 | #include <sys/mount.h> |
24 | #include <sys/syscallargs.h> | |
25 | ||
c8c7dd0e | 26 | /* |
cf012934 | 27 | * System call interface to the socket abstraction. |
c8c7dd0e | 28 | */ |
8ffc8876 CT |
29 | #if defined(COMPAT_43) || defined(COMPAT_SUNOS) |
30 | #define COMPAT_OLDSOCK | |
31 | #endif | |
c8c7dd0e | 32 | |
88a7a62a SL |
33 | extern struct fileops socketops; |
34 | ||
01eea121 | 35 | int |
85843d69 KM |
36 | socket(p, uap, retval) |
37 | struct proc *p; | |
01eea121 CD |
38 | register struct socket_args /* { |
39 | syscallarg(int) domain; | |
40 | syscallarg(int) type; | |
41 | syscallarg(int) protocol; | |
42 | } */ *uap; | |
43 | register_t *retval; | |
85843d69 | 44 | { |
5e00df3b | 45 | struct filedesc *fdp = p->p_fd; |
2b4b57cd | 46 | struct socket *so; |
0c9a45f0 | 47 | struct file *fp; |
76ffad7c | 48 | int fd, error; |
c8c7dd0e | 49 | |
5e00df3b | 50 | if (error = falloc(p, &fp, &fd)) |
d9c2f47f | 51 | return (error); |
4147b3f6 BJ |
52 | fp->f_flag = FREAD|FWRITE; |
53 | fp->f_type = DTYPE_SOCKET; | |
88a7a62a | 54 | fp->f_ops = &socketops; |
01eea121 CD |
55 | if (error = socreate(SCARG(uap, domain), &so, SCARG(uap, type), |
56 | SCARG(uap, protocol))) { | |
994fd74e | 57 | fdp->fd_ofiles[fd] = 0; |
336f999d | 58 | ffree(fp); |
76ffad7c MK |
59 | } else { |
60 | fp->f_data = (caddr_t)so; | |
85843d69 | 61 | *retval = fd; |
76ffad7c | 62 | } |
d9c2f47f | 63 | return (error); |
c8c7dd0e | 64 | } |
ae921915 | 65 | |
85843d69 | 66 | /* ARGSUSED */ |
01eea121 | 67 | int |
85843d69 KM |
68 | bind(p, uap, retval) |
69 | struct proc *p; | |
01eea121 CD |
70 | register struct bind_args /* { |
71 | syscallarg(int) s; | |
72 | syscallarg(caddr_t) name; | |
73 | syscallarg(int) namelen; | |
74 | } */ *uap; | |
75 | register_t *retval; | |
85843d69 | 76 | { |
5e00df3b | 77 | struct file *fp; |
cf012934 | 78 | struct mbuf *nam; |
76ffad7c | 79 | int error; |
ae921915 | 80 | |
01eea121 | 81 | if (error = getsock(p->p_fd, SCARG(uap, s), &fp)) |
d9c2f47f | 82 | return (error); |
01eea121 CD |
83 | if (error = sockargs(&nam, SCARG(uap, name), SCARG(uap, namelen), |
84 | MT_SONAME)) | |
d9c2f47f | 85 | return (error); |
76ffad7c | 86 | error = sobind((struct socket *)fp->f_data, nam); |
cf012934 | 87 | m_freem(nam); |
d9c2f47f | 88 | return (error); |
cf012934 BJ |
89 | } |
90 | ||
85843d69 | 91 | /* ARGSUSED */ |
01eea121 | 92 | int |
85843d69 KM |
93 | listen(p, uap, retval) |
94 | struct proc *p; | |
01eea121 CD |
95 | register struct listen_args /* { |
96 | syscallarg(int) s; | |
97 | syscallarg(int) backlog; | |
98 | } */ *uap; | |
99 | register_t *retval; | |
85843d69 | 100 | { |
5e00df3b | 101 | struct file *fp; |
76ffad7c | 102 | int error; |
cf012934 | 103 | |
01eea121 | 104 | if (error = getsock(p->p_fd, SCARG(uap, s), &fp)) |
d9c2f47f | 105 | return (error); |
01eea121 | 106 | return (solisten((struct socket *)fp->f_data, SCARG(uap, backlog))); |
cf012934 BJ |
107 | } |
108 | ||
8ffc8876 | 109 | #ifdef COMPAT_OLDSOCK |
01eea121 | 110 | int |
85843d69 KM |
111 | accept(p, uap, retval) |
112 | struct proc *p; | |
01eea121 CD |
113 | struct accept_args /* { |
114 | syscallarg(int) s; | |
115 | syscallarg(caddr_t) name; | |
116 | syscallarg(int *) anamelen; | |
117 | } */ *uap; | |
118 | register_t *retval; | |
85843d69 | 119 | { |
76ffad7c | 120 | |
01eea121 | 121 | return (accept1(p, uap, retval, 0)); |
f4d2893a MK |
122 | } |
123 | ||
01eea121 CD |
124 | int |
125 | compat_43_accept(p, uap, retval) | |
85843d69 | 126 | struct proc *p; |
01eea121 CD |
127 | struct accept_args /* { |
128 | syscallarg(int) s; | |
129 | syscallarg(caddr_t) name; | |
130 | syscallarg(int *) anamelen; | |
131 | } */ *uap; | |
132 | register_t *retval; | |
85843d69 | 133 | { |
76ffad7c | 134 | |
01eea121 | 135 | return (accept1(p, uap, retval, 1)); |
f4d2893a | 136 | } |
8ffc8876 | 137 | #else /* COMPAT_OLDSOCK */ |
f4d2893a | 138 | |
76ffad7c | 139 | #define accept1 accept |
f4d2893a | 140 | #endif |
76ffad7c | 141 | |
01eea121 CD |
142 | int |
143 | accept1(p, uap, retval, compat_43) | |
85843d69 | 144 | struct proc *p; |
01eea121 CD |
145 | register struct accept_args /* { |
146 | syscallarg(int) s; | |
147 | syscallarg(caddr_t) name; | |
148 | syscallarg(int *) anamelen; | |
149 | } */ *uap; | |
150 | register_t *retval; | |
151 | int compat_43; | |
85843d69 | 152 | { |
0c9a45f0 | 153 | struct file *fp; |
cf012934 | 154 | struct mbuf *nam; |
01eea121 | 155 | int namelen, error, s, tmpfd; |
cf012934 BJ |
156 | register struct socket *so; |
157 | ||
01eea121 | 158 | if (SCARG(uap, name) && (error = copyin((caddr_t)SCARG(uap, anamelen), |
7a22a33c | 159 | (caddr_t)&namelen, sizeof (namelen)))) |
d9c2f47f | 160 | return (error); |
01eea121 | 161 | if (error = getsock(p->p_fd, SCARG(uap, s), &fp)) |
d9c2f47f | 162 | return (error); |
2b4b57cd | 163 | s = splnet(); |
88a7a62a | 164 | so = (struct socket *)fp->f_data; |
4147b3f6 | 165 | if ((so->so_options & SO_ACCEPTCONN) == 0) { |
4147b3f6 | 166 | splx(s); |
d9c2f47f | 167 | return (EINVAL); |
4147b3f6 BJ |
168 | } |
169 | if ((so->so_state & SS_NBIO) && so->so_qlen == 0) { | |
2b4b57cd | 170 | splx(s); |
d9c2f47f | 171 | return (EWOULDBLOCK); |
2b4b57cd | 172 | } |
4147b3f6 | 173 | while (so->so_qlen == 0 && so->so_error == 0) { |
62229532 BJ |
174 | if (so->so_state & SS_CANTRCVMORE) { |
175 | so->so_error = ECONNABORTED; | |
176 | break; | |
177 | } | |
27f43765 MK |
178 | if (error = tsleep((caddr_t)&so->so_timeo, PSOCK | PCATCH, |
179 | netcon, 0)) { | |
180 | splx(s); | |
d9c2f47f | 181 | return (error); |
27f43765 | 182 | } |
62229532 | 183 | } |
f269ef23 | 184 | if (so->so_error) { |
27f43765 | 185 | error = so->so_error; |
f4ed5810 | 186 | so->so_error = 0; |
f269ef23 | 187 | splx(s); |
d9c2f47f | 188 | return (error); |
f269ef23 | 189 | } |
01eea121 | 190 | if (error = falloc(p, &fp, &tmpfd)) { |
2b4b57cd | 191 | splx(s); |
d9c2f47f | 192 | return (error); |
cf012934 | 193 | } |
01eea121 | 194 | *retval = tmpfd; |
cf012934 BJ |
195 | { struct socket *aso = so->so_q; |
196 | if (soqremque(aso, 1) == 0) | |
197 | panic("accept"); | |
198 | so = aso; | |
2b4b57cd | 199 | } |
4147b3f6 BJ |
200 | fp->f_type = DTYPE_SOCKET; |
201 | fp->f_flag = FREAD|FWRITE; | |
88a7a62a SL |
202 | fp->f_ops = &socketops; |
203 | fp->f_data = (caddr_t)so; | |
cce93e4b | 204 | nam = m_get(M_WAIT, MT_SONAME); |
66f52238 | 205 | (void) soaccept(so, nam); |
01eea121 | 206 | if (SCARG(uap, name)) { |
8ffc8876 | 207 | #ifdef COMPAT_OLDSOCK |
01eea121 | 208 | if (compat_43) |
f4d2893a MK |
209 | mtod(nam, struct osockaddr *)->sa_family = |
210 | mtod(nam, struct sockaddr *)->sa_family; | |
211 | #endif | |
cf012934 BJ |
212 | if (namelen > nam->m_len) |
213 | namelen = nam->m_len; | |
214 | /* SHOULD COPY OUT A CHAIN HERE */ | |
01eea121 CD |
215 | if ((error = copyout(mtod(nam, caddr_t), |
216 | (caddr_t)SCARG(uap, name), (u_int)namelen)) == 0) | |
7a22a33c | 217 | error = copyout((caddr_t)&namelen, |
01eea121 CD |
218 | (caddr_t)SCARG(uap, anamelen), |
219 | sizeof (*SCARG(uap, anamelen))); | |
cf012934 BJ |
220 | } |
221 | m_freem(nam); | |
2b4b57cd | 222 | splx(s); |
d9c2f47f | 223 | return (error); |
ae921915 BJ |
224 | } |
225 | ||
85843d69 | 226 | /* ARGSUSED */ |
01eea121 | 227 | int |
85843d69 KM |
228 | connect(p, uap, retval) |
229 | struct proc *p; | |
01eea121 CD |
230 | register struct connect_args /* { |
231 | syscallarg(int) s; | |
232 | syscallarg(caddr_t) name; | |
233 | syscallarg(int) namelen; | |
234 | } */ *uap; | |
235 | register_t *retval; | |
85843d69 | 236 | { |
5e00df3b | 237 | struct file *fp; |
c8c7dd0e | 238 | register struct socket *so; |
cf012934 | 239 | struct mbuf *nam; |
27f43765 | 240 | int error, s; |
c8c7dd0e | 241 | |
01eea121 | 242 | if (error = getsock(p->p_fd, SCARG(uap, s), &fp)) |
d9c2f47f | 243 | return (error); |
88a7a62a | 244 | so = (struct socket *)fp->f_data; |
27f43765 | 245 | if ((so->so_state & SS_NBIO) && (so->so_state & SS_ISCONNECTING)) |
d9c2f47f | 246 | return (EALREADY); |
01eea121 CD |
247 | if (error = sockargs(&nam, SCARG(uap, name), SCARG(uap, namelen), |
248 | MT_SONAME)) | |
d9c2f47f | 249 | return (error); |
27f43765 MK |
250 | error = soconnect(so, nam); |
251 | if (error) | |
cf012934 | 252 | goto bad; |
27f43765 | 253 | if ((so->so_state & SS_NBIO) && (so->so_state & SS_ISCONNECTING)) { |
6222acc3 | 254 | m_freem(nam); |
d9c2f47f | 255 | return (EINPROGRESS); |
6222acc3 | 256 | } |
c8c7dd0e | 257 | s = splnet(); |
cc15ab5d | 258 | while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) |
27f43765 MK |
259 | if (error = tsleep((caddr_t)&so->so_timeo, PSOCK | PCATCH, |
260 | netcon, 0)) | |
261 | break; | |
262 | if (error == 0) { | |
263 | error = so->so_error; | |
264 | so->so_error = 0; | |
265 | } | |
cc15ab5d | 266 | splx(s); |
cf012934 | 267 | bad: |
6750daae | 268 | so->so_state &= ~SS_ISCONNECTING; |
cf012934 | 269 | m_freem(nam); |
27f43765 MK |
270 | if (error == ERESTART) |
271 | error = EINTR; | |
d9c2f47f | 272 | return (error); |
c8c7dd0e BJ |
273 | } |
274 | ||
01eea121 | 275 | int |
85843d69 KM |
276 | socketpair(p, uap, retval) |
277 | struct proc *p; | |
01eea121 CD |
278 | register struct socketpair_args /* { |
279 | syscallarg(int) domain; | |
280 | syscallarg(int) type; | |
281 | syscallarg(int) protocol; | |
282 | syscallarg(int *) rsv; | |
283 | } */ *uap; | |
284 | register_t *retval; | |
85843d69 | 285 | { |
5e00df3b | 286 | register struct filedesc *fdp = p->p_fd; |
0c9a45f0 | 287 | struct file *fp1, *fp2; |
5a48956d | 288 | struct socket *so1, *so2; |
76ffad7c | 289 | int fd, error, sv[2]; |
cf012934 | 290 | |
01eea121 CD |
291 | if (error = socreate(SCARG(uap, domain), &so1, SCARG(uap, type), |
292 | SCARG(uap, protocol))) | |
d9c2f47f | 293 | return (error); |
01eea121 CD |
294 | if (error = socreate(SCARG(uap, domain), &so2, SCARG(uap, type), |
295 | SCARG(uap, protocol))) | |
b242cf10 | 296 | goto free1; |
5e00df3b | 297 | if (error = falloc(p, &fp1, &fd)) |
5a48956d | 298 | goto free2; |
0c9a45f0 | 299 | sv[0] = fd; |
5a48956d SL |
300 | fp1->f_flag = FREAD|FWRITE; |
301 | fp1->f_type = DTYPE_SOCKET; | |
302 | fp1->f_ops = &socketops; | |
303 | fp1->f_data = (caddr_t)so1; | |
5e00df3b | 304 | if (error = falloc(p, &fp2, &fd)) |
5a48956d SL |
305 | goto free3; |
306 | fp2->f_flag = FREAD|FWRITE; | |
307 | fp2->f_type = DTYPE_SOCKET; | |
308 | fp2->f_ops = &socketops; | |
309 | fp2->f_data = (caddr_t)so2; | |
0c9a45f0 | 310 | sv[1] = fd; |
76ffad7c | 311 | if (error = soconnect2(so1, so2)) |
5a48956d | 312 | goto free4; |
01eea121 | 313 | if (SCARG(uap, type) == SOCK_DGRAM) { |
33446404 MK |
314 | /* |
315 | * Datagram socket connection is asymmetric. | |
316 | */ | |
76ffad7c | 317 | if (error = soconnect2(so2, so1)) |
33446404 MK |
318 | goto free4; |
319 | } | |
01eea121 CD |
320 | error = copyout((caddr_t)sv, (caddr_t)SCARG(uap, rsv), |
321 | 2 * sizeof (int)); | |
85843d69 KM |
322 | retval[0] = sv[0]; /* XXX ??? */ |
323 | retval[1] = sv[1]; /* XXX ??? */ | |
d9c2f47f | 324 | return (error); |
5a48956d | 325 | free4: |
336f999d | 326 | ffree(fp2); |
994fd74e | 327 | fdp->fd_ofiles[sv[1]] = 0; |
5a48956d | 328 | free3: |
336f999d | 329 | ffree(fp1); |
994fd74e | 330 | fdp->fd_ofiles[sv[0]] = 0; |
5a48956d | 331 | free2: |
8011f5df | 332 | (void)soclose(so2); |
b242cf10 | 333 | free1: |
8011f5df | 334 | (void)soclose(so1); |
d9c2f47f | 335 | return (error); |
cf012934 BJ |
336 | } |
337 | ||
01eea121 | 338 | int |
85843d69 KM |
339 | sendto(p, uap, retval) |
340 | struct proc *p; | |
01eea121 CD |
341 | register struct sendto_args /* { |
342 | syscallarg(int) s; | |
343 | syscallarg(caddr_t) buf; | |
344 | syscallarg(size_t) len; | |
345 | syscallarg(int) flags; | |
346 | syscallarg(caddr_t) to; | |
347 | syscallarg(int) tolen; | |
348 | } */ *uap; | |
349 | register_t *retval; | |
85843d69 | 350 | { |
88a7a62a | 351 | struct msghdr msg; |
d3d550b5 | 352 | struct iovec aiov; |
c8c7dd0e | 353 | |
01eea121 CD |
354 | msg.msg_name = SCARG(uap, to); |
355 | msg.msg_namelen = SCARG(uap, tolen); | |
88a7a62a SL |
356 | msg.msg_iov = &aiov; |
357 | msg.msg_iovlen = 1; | |
27f43765 | 358 | msg.msg_control = 0; |
8ffc8876 | 359 | #ifdef COMPAT_OLDSOCK |
27f43765 MK |
360 | msg.msg_flags = 0; |
361 | #endif | |
01eea121 CD |
362 | aiov.iov_base = SCARG(uap, buf); |
363 | aiov.iov_len = SCARG(uap, len); | |
364 | return (sendit(p, SCARG(uap, s), &msg, SCARG(uap, flags), retval)); | |
c8c7dd0e BJ |
365 | } |
366 | ||
8ffc8876 | 367 | #ifdef COMPAT_OLDSOCK |
01eea121 CD |
368 | int |
369 | compat_43_send(p, uap, retval) | |
85843d69 | 370 | struct proc *p; |
01eea121 CD |
371 | register struct compat_43_send_args /* { |
372 | syscallarg(int) s; | |
373 | syscallarg(caddr_t) buf; | |
374 | syscallarg(int) len; | |
375 | syscallarg(int) flags; | |
376 | } */ *uap; | |
377 | register_t *retval; | |
85843d69 | 378 | { |
88a7a62a | 379 | struct msghdr msg; |
a6b6f679 | 380 | struct iovec aiov; |
cc15ab5d | 381 | |
88a7a62a SL |
382 | msg.msg_name = 0; |
383 | msg.msg_namelen = 0; | |
384 | msg.msg_iov = &aiov; | |
385 | msg.msg_iovlen = 1; | |
01eea121 CD |
386 | aiov.iov_base = SCARG(uap, buf); |
387 | aiov.iov_len = SCARG(uap, len); | |
6d47a3da | 388 | msg.msg_control = 0; |
27f43765 | 389 | msg.msg_flags = 0; |
01eea121 | 390 | return (sendit(p, SCARG(uap, s), &msg, SCARG(uap, flags), retval)); |
88a7a62a SL |
391 | } |
392 | ||
7a22a33c | 393 | #define MSG_COMPAT 0x8000 |
01eea121 CD |
394 | int |
395 | compat_43_sendmsg(p, uap, retval) | |
85843d69 | 396 | struct proc *p; |
01eea121 CD |
397 | register struct compat_43_sendmsg_args /* { |
398 | syscallarg(int) s; | |
399 | syscallarg(caddr_t) msg; | |
400 | syscallarg(int) flags; | |
401 | } */ *uap; | |
402 | register_t *retval; | |
85843d69 | 403 | { |
6d47a3da | 404 | struct msghdr msg; |
813b7cd1 | 405 | struct iovec aiov[UIO_SMALLIOV], *iov; |
76ffad7c | 406 | int error; |
6d47a3da | 407 | |
01eea121 CD |
408 | if (error = copyin(SCARG(uap, msg), (caddr_t)&msg, |
409 | sizeof (struct omsghdr))) | |
d9c2f47f | 410 | return (error); |
813b7cd1 MT |
411 | if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { |
412 | if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) | |
d9c2f47f | 413 | return (EMSGSIZE); |
813b7cd1 MT |
414 | MALLOC(iov, struct iovec *, |
415 | sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, | |
416 | M_WAITOK); | |
417 | } else | |
418 | iov = aiov; | |
419 | if (error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov, | |
420 | (unsigned)(msg.msg_iovlen * sizeof (struct iovec)))) | |
421 | goto done; | |
7a22a33c | 422 | msg.msg_flags = MSG_COMPAT; |
813b7cd1 | 423 | msg.msg_iov = iov; |
01eea121 | 424 | error = sendit(p, SCARG(uap, s), &msg, SCARG(uap, flags), retval); |
813b7cd1 MT |
425 | done: |
426 | if (iov != aiov) | |
427 | FREE(iov, M_IOV); | |
d9c2f47f | 428 | return (error); |
6d47a3da MK |
429 | } |
430 | #endif | |
431 | ||
01eea121 | 432 | int |
85843d69 KM |
433 | sendmsg(p, uap, retval) |
434 | struct proc *p; | |
01eea121 CD |
435 | register struct sendmsg_args /* { |
436 | syscallarg(int) s; | |
437 | syscallarg(caddr_t) msg; | |
438 | syscallarg(int) flags; | |
439 | } */ *uap; | |
440 | register_t *retval; | |
85843d69 | 441 | { |
88a7a62a | 442 | struct msghdr msg; |
813b7cd1 | 443 | struct iovec aiov[UIO_SMALLIOV], *iov; |
76ffad7c | 444 | int error; |
88a7a62a | 445 | |
01eea121 | 446 | if (error = copyin(SCARG(uap, msg), (caddr_t)&msg, sizeof (msg))) |
d9c2f47f | 447 | return (error); |
813b7cd1 MT |
448 | if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { |
449 | if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) | |
d9c2f47f | 450 | return (EMSGSIZE); |
813b7cd1 MT |
451 | MALLOC(iov, struct iovec *, |
452 | sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, | |
453 | M_WAITOK); | |
454 | } else | |
455 | iov = aiov; | |
3eb6310a | 456 | if (msg.msg_iovlen && |
813b7cd1 MT |
457 | (error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov, |
458 | (unsigned)(msg.msg_iovlen * sizeof (struct iovec))))) | |
459 | goto done; | |
460 | msg.msg_iov = iov; | |
8ffc8876 | 461 | #ifdef COMPAT_OLDSOCK |
27f43765 MK |
462 | msg.msg_flags = 0; |
463 | #endif | |
01eea121 | 464 | error = sendit(p, SCARG(uap, s), &msg, SCARG(uap, flags), retval); |
813b7cd1 MT |
465 | done: |
466 | if (iov != aiov) | |
467 | FREE(iov, M_IOV); | |
d9c2f47f | 468 | return (error); |
88a7a62a SL |
469 | } |
470 | ||
01eea121 | 471 | int |
5e00df3b KM |
472 | sendit(p, s, mp, flags, retsize) |
473 | register struct proc *p; | |
88a7a62a SL |
474 | int s; |
475 | register struct msghdr *mp; | |
01eea121 CD |
476 | int flags; |
477 | register_t *retsize; | |
88a7a62a | 478 | { |
5e00df3b | 479 | struct file *fp; |
88a7a62a SL |
480 | struct uio auio; |
481 | register struct iovec *iov; | |
482 | register int i; | |
27f43765 | 483 | struct mbuf *to, *control; |
76ffad7c | 484 | int len, error; |
813b7cd1 MT |
485 | #ifdef KTRACE |
486 | struct iovec *ktriov = NULL; | |
487 | #endif | |
88a7a62a | 488 | |
5e00df3b | 489 | if (error = getsock(p->p_fd, s, &fp)) |
76ffad7c | 490 | return (error); |
88a7a62a SL |
491 | auio.uio_iov = mp->msg_iov; |
492 | auio.uio_iovcnt = mp->msg_iovlen; | |
c41770c0 | 493 | auio.uio_segflg = UIO_USERSPACE; |
c4ec2128 | 494 | auio.uio_rw = UIO_WRITE; |
994fd74e | 495 | auio.uio_procp = p; |
88a7a62a SL |
496 | auio.uio_offset = 0; /* XXX */ |
497 | auio.uio_resid = 0; | |
498 | iov = mp->msg_iov; | |
125c8f95 | 499 | for (i = 0; i < mp->msg_iovlen; i++, iov++) { |
6d366756 | 500 | if (auio.uio_resid + iov->iov_len < auio.uio_resid) |
7a22a33c | 501 | return (EINVAL); |
6d366756 | 502 | auio.uio_resid += iov->iov_len; |
88a7a62a SL |
503 | } |
504 | if (mp->msg_name) { | |
76ffad7c MK |
505 | if (error = sockargs(&to, mp->msg_name, mp->msg_namelen, |
506 | MT_SONAME)) | |
507 | return (error); | |
88a7a62a SL |
508 | } else |
509 | to = 0; | |
6d47a3da | 510 | if (mp->msg_control) { |
7a22a33c | 511 | if (mp->msg_controllen < sizeof(struct cmsghdr) |
8ffc8876 | 512 | #ifdef COMPAT_OLDSOCK |
a7a4c7b9 | 513 | && mp->msg_flags != MSG_COMPAT |
7a22a33c | 514 | #endif |
a7a4c7b9 | 515 | ) { |
7a22a33c MK |
516 | error = EINVAL; |
517 | goto bad; | |
518 | } | |
76ffad7c MK |
519 | if (error = sockargs(&control, mp->msg_control, |
520 | mp->msg_controllen, MT_CONTROL)) | |
6d47a3da | 521 | goto bad; |
8ffc8876 | 522 | #ifdef COMPAT_OLDSOCK |
7a22a33c | 523 | if (mp->msg_flags == MSG_COMPAT) { |
27f43765 | 524 | register struct cmsghdr *cm; |
76ffad7c | 525 | |
27f43765 | 526 | M_PREPEND(control, sizeof(*cm), M_WAIT); |
76ffad7c MK |
527 | if (control == 0) { |
528 | error = ENOBUFS; | |
529 | goto bad; | |
530 | } else { | |
27f43765 MK |
531 | cm = mtod(control, struct cmsghdr *); |
532 | cm->cmsg_len = control->m_len; | |
533 | cm->cmsg_level = SOL_SOCKET; | |
534 | cm->cmsg_type = SCM_RIGHTS; | |
535 | } | |
536 | } | |
537 | #endif | |
6d47a3da MK |
538 | } else |
539 | control = 0; | |
813b7cd1 | 540 | #ifdef KTRACE |
5e00df3b | 541 | if (KTRPOINT(p, KTR_GENIO)) { |
813b7cd1 MT |
542 | int iovlen = auio.uio_iovcnt * sizeof (struct iovec); |
543 | ||
544 | MALLOC(ktriov, struct iovec *, iovlen, M_TEMP, M_WAITOK); | |
545 | bcopy((caddr_t)auio.uio_iov, (caddr_t)ktriov, iovlen); | |
546 | } | |
547 | #endif | |
88a7a62a | 548 | len = auio.uio_resid; |
76ffad7c | 549 | if (error = sosend((struct socket *)fp->f_data, to, &auio, |
7a22a33c | 550 | (struct mbuf *)0, control, flags)) { |
76ffad7c MK |
551 | if (auio.uio_resid != len && (error == ERESTART || |
552 | error == EINTR || error == EWOULDBLOCK)) | |
553 | error = 0; | |
554 | if (error == EPIPE) | |
5e00df3b | 555 | psignal(p, SIGPIPE); |
813b7cd1 MT |
556 | } |
557 | if (error == 0) | |
85843d69 | 558 | *retsize = len - auio.uio_resid; |
813b7cd1 MT |
559 | #ifdef KTRACE |
560 | if (ktriov != NULL) { | |
561 | if (error == 0) | |
5e00df3b | 562 | ktrgenio(p->p_tracep, s, UIO_WRITE, |
81ba99b6 | 563 | ktriov, *retsize, error); |
813b7cd1 MT |
564 | FREE(ktriov, M_TEMP); |
565 | } | |
566 | #endif | |
6d47a3da | 567 | bad: |
88a7a62a SL |
568 | if (to) |
569 | m_freem(to); | |
76ffad7c | 570 | return (error); |
cf012934 BJ |
571 | } |
572 | ||
8ffc8876 | 573 | #ifdef COMPAT_OLDSOCK |
01eea121 CD |
574 | int |
575 | compat_43_recvfrom(p, uap, retval) | |
85843d69 | 576 | struct proc *p; |
01eea121 CD |
577 | struct recvfrom_args /* { |
578 | syscallarg(int) s; | |
579 | syscallarg(caddr_t) buf; | |
580 | syscallarg(size_t) len; | |
581 | syscallarg(int) flags; | |
582 | syscallarg(caddr_t) from; | |
583 | syscallarg(int *) fromlenaddr; | |
584 | } */ *uap; | |
585 | register_t *retval; | |
85843d69 | 586 | { |
76ffad7c | 587 | |
01eea121 | 588 | SCARG(uap, flags) |= MSG_COMPAT; |
d9c2f47f | 589 | return (recvfrom(p, uap, retval)); |
f4d2893a | 590 | } |
f4d2893a | 591 | #endif |
76ffad7c | 592 | |
01eea121 | 593 | int |
85843d69 KM |
594 | recvfrom(p, uap, retval) |
595 | struct proc *p; | |
01eea121 CD |
596 | register struct recvfrom_args /* { |
597 | syscallarg(int) s; | |
598 | syscallarg(caddr_t) buf; | |
599 | syscallarg(size_t) len; | |
600 | syscallarg(int) flags; | |
601 | syscallarg(caddr_t) from; | |
602 | syscallarg(int *) fromlenaddr; | |
603 | } */ *uap; | |
604 | register_t *retval; | |
85843d69 | 605 | { |
88a7a62a | 606 | struct msghdr msg; |
cf012934 | 607 | struct iovec aiov; |
7a22a33c | 608 | int error; |
cf012934 | 609 | |
01eea121 CD |
610 | if (SCARG(uap, fromlenaddr)) { |
611 | if (error = copyin((caddr_t)SCARG(uap, fromlenaddr), | |
7a22a33c | 612 | (caddr_t)&msg.msg_namelen, sizeof (msg.msg_namelen))) |
d9c2f47f | 613 | return (error); |
6d47a3da | 614 | } else |
7a22a33c | 615 | msg.msg_namelen = 0; |
01eea121 | 616 | msg.msg_name = SCARG(uap, from); |
88a7a62a SL |
617 | msg.msg_iov = &aiov; |
618 | msg.msg_iovlen = 1; | |
01eea121 CD |
619 | aiov.iov_base = SCARG(uap, buf); |
620 | aiov.iov_len = SCARG(uap, len); | |
6d47a3da | 621 | msg.msg_control = 0; |
01eea121 CD |
622 | msg.msg_flags = SCARG(uap, flags); |
623 | return (recvit(p, SCARG(uap, s), &msg, | |
624 | (caddr_t)SCARG(uap, fromlenaddr), retval)); | |
cf012934 | 625 | } |
76ffad7c | 626 | |
8ffc8876 | 627 | #ifdef COMPAT_OLDSOCK |
01eea121 CD |
628 | int |
629 | compat_43_recv(p, uap, retval) | |
85843d69 | 630 | struct proc *p; |
01eea121 CD |
631 | register struct compat_43_recv_args /* { |
632 | syscallarg(int) s; | |
633 | syscallarg(caddr_t) buf; | |
634 | syscallarg(int) len; | |
635 | syscallarg(int) flags; | |
636 | } */ *uap; | |
637 | register_t *retval; | |
85843d69 | 638 | { |
88a7a62a | 639 | struct msghdr msg; |
cf012934 BJ |
640 | struct iovec aiov; |
641 | ||
88a7a62a SL |
642 | msg.msg_name = 0; |
643 | msg.msg_namelen = 0; | |
644 | msg.msg_iov = &aiov; | |
645 | msg.msg_iovlen = 1; | |
01eea121 CD |
646 | aiov.iov_base = SCARG(uap, buf); |
647 | aiov.iov_len = SCARG(uap, len); | |
6d47a3da | 648 | msg.msg_control = 0; |
01eea121 CD |
649 | msg.msg_flags = SCARG(uap, flags); |
650 | return (recvit(p, SCARG(uap, s), &msg, (caddr_t)0, retval)); | |
6d47a3da MK |
651 | } |
652 | ||
7a22a33c MK |
653 | /* |
654 | * Old recvmsg. This code takes advantage of the fact that the old msghdr | |
655 | * overlays the new one, missing only the flags, and with the (old) access | |
656 | * rights where the control fields are now. | |
657 | */ | |
01eea121 CD |
658 | int |
659 | compat_43_recvmsg(p, uap, retval) | |
85843d69 | 660 | struct proc *p; |
01eea121 CD |
661 | register struct compat_43_recvmsg_args /* { |
662 | syscallarg(int) s; | |
663 | syscallarg(struct omsghdr *) msg; | |
664 | syscallarg(int) flags; | |
665 | } */ *uap; | |
666 | register_t *retval; | |
85843d69 | 667 | { |
6d47a3da | 668 | struct msghdr msg; |
813b7cd1 | 669 | struct iovec aiov[UIO_SMALLIOV], *iov; |
76ffad7c | 670 | int error; |
6d47a3da | 671 | |
01eea121 | 672 | if (error = copyin((caddr_t)SCARG(uap, msg), (caddr_t)&msg, |
76ffad7c | 673 | sizeof (struct omsghdr))) |
d9c2f47f | 674 | return (error); |
813b7cd1 MT |
675 | if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { |
676 | if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) | |
d9c2f47f | 677 | return (EMSGSIZE); |
813b7cd1 MT |
678 | MALLOC(iov, struct iovec *, |
679 | sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, | |
680 | M_WAITOK); | |
681 | } else | |
682 | iov = aiov; | |
01eea121 | 683 | msg.msg_flags = SCARG(uap, flags) | MSG_COMPAT; |
813b7cd1 MT |
684 | if (error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov, |
685 | (unsigned)(msg.msg_iovlen * sizeof (struct iovec)))) | |
686 | goto done; | |
687 | msg.msg_iov = iov; | |
01eea121 CD |
688 | error = recvit(p, SCARG(uap, s), &msg, |
689 | (caddr_t)&SCARG(uap, msg)->msg_namelen, retval); | |
7a22a33c MK |
690 | |
691 | if (msg.msg_controllen && error == 0) | |
692 | error = copyout((caddr_t)&msg.msg_controllen, | |
01eea121 | 693 | (caddr_t)&SCARG(uap, msg)->msg_accrightslen, sizeof (int)); |
813b7cd1 MT |
694 | done: |
695 | if (iov != aiov) | |
696 | FREE(iov, M_IOV); | |
d9c2f47f | 697 | return (error); |
cf012934 | 698 | } |
6d47a3da | 699 | #endif |
cf012934 | 700 | |
01eea121 | 701 | int |
85843d69 KM |
702 | recvmsg(p, uap, retval) |
703 | struct proc *p; | |
01eea121 CD |
704 | register struct recvmsg_args /* { |
705 | syscallarg(int) s; | |
706 | syscallarg(struct msghdr *) msg; | |
707 | syscallarg(int) flags; | |
708 | } */ *uap; | |
709 | register_t *retval; | |
85843d69 | 710 | { |
88a7a62a | 711 | struct msghdr msg; |
813b7cd1 | 712 | struct iovec aiov[UIO_SMALLIOV], *uiov, *iov; |
76ffad7c MK |
713 | register int error; |
714 | ||
01eea121 CD |
715 | if (error = copyin((caddr_t)SCARG(uap, msg), (caddr_t)&msg, |
716 | sizeof (msg))) | |
d9c2f47f | 717 | return (error); |
813b7cd1 MT |
718 | if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { |
719 | if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) | |
d9c2f47f | 720 | return (EMSGSIZE); |
813b7cd1 MT |
721 | MALLOC(iov, struct iovec *, |
722 | sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, | |
723 | M_WAITOK); | |
724 | } else | |
725 | iov = aiov; | |
8ffc8876 | 726 | #ifdef COMPAT_OLDSOCK |
01eea121 | 727 | msg.msg_flags = SCARG(uap, flags) &~ MSG_COMPAT; |
7a22a33c | 728 | #else |
01eea121 | 729 | msg.msg_flags = SCARG(uap, flags); |
7a22a33c | 730 | #endif |
27f43765 | 731 | uiov = msg.msg_iov; |
813b7cd1 MT |
732 | msg.msg_iov = iov; |
733 | if (error = copyin((caddr_t)uiov, (caddr_t)iov, | |
734 | (unsigned)(msg.msg_iovlen * sizeof (struct iovec)))) | |
735 | goto done; | |
01eea121 | 736 | if ((error = recvit(p, SCARG(uap, s), &msg, (caddr_t)0, retval)) == 0) { |
76ffad7c | 737 | msg.msg_iov = uiov; |
01eea121 CD |
738 | error = copyout((caddr_t)&msg, (caddr_t)SCARG(uap, msg), |
739 | sizeof(msg)); | |
76ffad7c | 740 | } |
813b7cd1 MT |
741 | done: |
742 | if (iov != aiov) | |
743 | FREE(iov, M_IOV); | |
d9c2f47f | 744 | return (error); |
cf012934 BJ |
745 | } |
746 | ||
01eea121 | 747 | int |
5e00df3b KM |
748 | recvit(p, s, mp, namelenp, retsize) |
749 | register struct proc *p; | |
7a22a33c | 750 | int s; |
88a7a62a | 751 | register struct msghdr *mp; |
7a22a33c | 752 | caddr_t namelenp; |
01eea121 | 753 | register_t *retsize; |
cf012934 | 754 | { |
5e00df3b | 755 | struct file *fp; |
88a7a62a SL |
756 | struct uio auio; |
757 | register struct iovec *iov; | |
758 | register int i; | |
76ffad7c | 759 | int len, error; |
7a22a33c | 760 | struct mbuf *from = 0, *control = 0; |
813b7cd1 MT |
761 | #ifdef KTRACE |
762 | struct iovec *ktriov = NULL; | |
763 | #endif | |
88a7a62a | 764 | |
5e00df3b | 765 | if (error = getsock(p->p_fd, s, &fp)) |
76ffad7c | 766 | return (error); |
88a7a62a SL |
767 | auio.uio_iov = mp->msg_iov; |
768 | auio.uio_iovcnt = mp->msg_iovlen; | |
c41770c0 | 769 | auio.uio_segflg = UIO_USERSPACE; |
c4ec2128 | 770 | auio.uio_rw = UIO_READ; |
994fd74e | 771 | auio.uio_procp = p; |
88a7a62a SL |
772 | auio.uio_offset = 0; /* XXX */ |
773 | auio.uio_resid = 0; | |
774 | iov = mp->msg_iov; | |
125c8f95 | 775 | for (i = 0; i < mp->msg_iovlen; i++, iov++) { |
6d366756 | 776 | if (auio.uio_resid + iov->iov_len < auio.uio_resid) |
7a22a33c | 777 | return (EINVAL); |
6d366756 | 778 | auio.uio_resid += iov->iov_len; |
88a7a62a | 779 | } |
813b7cd1 | 780 | #ifdef KTRACE |
5e00df3b | 781 | if (KTRPOINT(p, KTR_GENIO)) { |
813b7cd1 MT |
782 | int iovlen = auio.uio_iovcnt * sizeof (struct iovec); |
783 | ||
784 | MALLOC(ktriov, struct iovec *, iovlen, M_TEMP, M_WAITOK); | |
785 | bcopy((caddr_t)auio.uio_iov, (caddr_t)ktriov, iovlen); | |
786 | } | |
787 | #endif | |
88a7a62a | 788 | len = auio.uio_resid; |
76ffad7c | 789 | if (error = soreceive((struct socket *)fp->f_data, &from, &auio, |
34827683 KM |
790 | (struct mbuf **)0, mp->msg_control ? &control : (struct mbuf **)0, |
791 | &mp->msg_flags)) { | |
76ffad7c MK |
792 | if (auio.uio_resid != len && (error == ERESTART || |
793 | error == EINTR || error == EWOULDBLOCK)) | |
794 | error = 0; | |
795 | } | |
813b7cd1 MT |
796 | #ifdef KTRACE |
797 | if (ktriov != NULL) { | |
798 | if (error == 0) | |
5e00df3b | 799 | ktrgenio(p->p_tracep, s, UIO_READ, |
81ba99b6 | 800 | ktriov, len - auio.uio_resid, error); |
813b7cd1 MT |
801 | FREE(ktriov, M_TEMP); |
802 | } | |
803 | #endif | |
76ffad7c MK |
804 | if (error) |
805 | goto out; | |
85843d69 | 806 | *retsize = len - auio.uio_resid; |
88a7a62a SL |
807 | if (mp->msg_name) { |
808 | len = mp->msg_namelen; | |
809 | if (len <= 0 || from == 0) | |
810 | len = 0; | |
811 | else { | |
8ffc8876 | 812 | #ifdef COMPAT_OLDSOCK |
7a22a33c | 813 | if (mp->msg_flags & MSG_COMPAT) |
f4d2893a MK |
814 | mtod(from, struct osockaddr *)->sa_family = |
815 | mtod(from, struct sockaddr *)->sa_family; | |
816 | #endif | |
7a22a33c | 817 | if (len > from->m_len) |
88a7a62a | 818 | len = from->m_len; |
7a22a33c MK |
819 | /* else if len < from->m_len ??? */ |
820 | if (error = copyout(mtod(from, caddr_t), | |
821 | (caddr_t)mp->msg_name, (unsigned)len)) | |
822 | goto out; | |
88a7a62a | 823 | } |
a2aebb63 | 824 | mp->msg_namelen = len; |
7a22a33c MK |
825 | if (namelenp && |
826 | (error = copyout((caddr_t)&len, namelenp, sizeof (int)))) { | |
8ffc8876 | 827 | #ifdef COMPAT_OLDSOCK |
7a22a33c MK |
828 | if (mp->msg_flags & MSG_COMPAT) |
829 | error = 0; /* old recvfrom didn't check */ | |
830 | else | |
831 | #endif | |
832 | goto out; | |
88a7a62a | 833 | } |
6d47a3da MK |
834 | } |
835 | if (mp->msg_control) { | |
8ffc8876 | 836 | #ifdef COMPAT_OLDSOCK |
7a22a33c MK |
837 | /* |
838 | * We assume that old recvmsg calls won't receive access | |
839 | * rights and other control info, esp. as control info | |
840 | * is always optional and those options didn't exist in 4.3. | |
841 | * If we receive rights, trim the cmsghdr; anything else | |
842 | * is tossed. | |
843 | */ | |
844 | if (control && mp->msg_flags & MSG_COMPAT) { | |
845 | if (mtod(control, struct cmsghdr *)->cmsg_level != | |
846 | SOL_SOCKET || | |
847 | mtod(control, struct cmsghdr *)->cmsg_type != | |
848 | SCM_RIGHTS) { | |
849 | mp->msg_controllen = 0; | |
850 | goto out; | |
27f43765 | 851 | } |
7a22a33c MK |
852 | control->m_len -= sizeof (struct cmsghdr); |
853 | control->m_data += sizeof (struct cmsghdr); | |
27f43765 | 854 | } |
7a22a33c | 855 | #endif |
6d47a3da MK |
856 | len = mp->msg_controllen; |
857 | if (len <= 0 || control == 0) | |
858 | len = 0; | |
859 | else { | |
860 | if (len >= control->m_len) | |
861 | len = control->m_len; | |
862 | else | |
863 | mp->msg_flags |= MSG_CTRUNC; | |
7a22a33c | 864 | error = copyout((caddr_t)mtod(control, caddr_t), |
6d47a3da MK |
865 | (caddr_t)mp->msg_control, (unsigned)len); |
866 | } | |
a2aebb63 | 867 | mp->msg_controllen = len; |
88a7a62a | 868 | } |
76ffad7c | 869 | out: |
88a7a62a SL |
870 | if (from) |
871 | m_freem(from); | |
6d47a3da MK |
872 | if (control) |
873 | m_freem(control); | |
76ffad7c | 874 | return (error); |
cf012934 BJ |
875 | } |
876 | ||
85843d69 | 877 | /* ARGSUSED */ |
01eea121 | 878 | int |
85843d69 KM |
879 | shutdown(p, uap, retval) |
880 | struct proc *p; | |
01eea121 CD |
881 | register struct shutdown_args /* { |
882 | syscallarg(int) s; | |
883 | syscallarg(int) how; | |
884 | } */ *uap; | |
885 | register_t *retval; | |
85843d69 | 886 | { |
6ef233bf | 887 | struct file *fp; |
76ffad7c | 888 | int error; |
cf012934 | 889 | |
01eea121 | 890 | if (error = getsock(p->p_fd, SCARG(uap, s), &fp)) |
d9c2f47f | 891 | return (error); |
01eea121 | 892 | return (soshutdown((struct socket *)fp->f_data, SCARG(uap, how))); |
cf012934 BJ |
893 | } |
894 | ||
85843d69 | 895 | /* ARGSUSED */ |
01eea121 | 896 | int |
85843d69 KM |
897 | setsockopt(p, uap, retval) |
898 | struct proc *p; | |
01eea121 CD |
899 | register struct setsockopt_args /* { |
900 | syscallarg(int) s; | |
901 | syscallarg(int) level; | |
902 | syscallarg(int) name; | |
903 | syscallarg(caddr_t) val; | |
904 | syscallarg(int) valsize; | |
905 | } */ *uap; | |
906 | register_t *retval; | |
85843d69 | 907 | { |
66f52238 | 908 | struct file *fp; |
d2cba8de | 909 | struct mbuf *m = NULL; |
76ffad7c | 910 | int error; |
66f52238 | 911 | |
01eea121 | 912 | if (error = getsock(p->p_fd, SCARG(uap, s), &fp)) |
d9c2f47f | 913 | return (error); |
01eea121 | 914 | if (SCARG(uap, valsize) > MLEN) |
d9c2f47f | 915 | return (EINVAL); |
01eea121 | 916 | if (SCARG(uap, val)) { |
d2cba8de | 917 | m = m_get(M_WAIT, MT_SOOPTS); |
76ffad7c | 918 | if (m == NULL) |
d9c2f47f | 919 | return (ENOBUFS); |
01eea121 CD |
920 | if (error = copyin(SCARG(uap, val), mtod(m, caddr_t), |
921 | (u_int)SCARG(uap, valsize))) { | |
61ec2127 | 922 | (void) m_free(m); |
d9c2f47f | 923 | return (error); |
61ec2127 | 924 | } |
01eea121 | 925 | m->m_len = SCARG(uap, valsize); |
66f52238 | 926 | } |
01eea121 CD |
927 | return (sosetopt((struct socket *)fp->f_data, SCARG(uap, level), |
928 | SCARG(uap, name), m)); | |
66f52238 SL |
929 | } |
930 | ||
85843d69 | 931 | /* ARGSUSED */ |
01eea121 | 932 | int |
85843d69 KM |
933 | getsockopt(p, uap, retval) |
934 | struct proc *p; | |
01eea121 CD |
935 | register struct getsockopt_args /* { |
936 | syscallarg(int) s; | |
937 | syscallarg(int) level; | |
938 | syscallarg(int) name; | |
939 | syscallarg(caddr_t) val; | |
940 | syscallarg(int *) avalsize; | |
941 | } */ *uap; | |
942 | register_t *retval; | |
85843d69 | 943 | { |
66f52238 | 944 | struct file *fp; |
d2cba8de | 945 | struct mbuf *m = NULL; |
76ffad7c | 946 | int valsize, error; |
66f52238 | 947 | |
01eea121 | 948 | if (error = getsock(p->p_fd, SCARG(uap, s), &fp)) |
d9c2f47f | 949 | return (error); |
01eea121 CD |
950 | if (SCARG(uap, val)) { |
951 | if (error = copyin((caddr_t)SCARG(uap, avalsize), | |
952 | (caddr_t)&valsize, sizeof (valsize))) | |
d9c2f47f | 953 | return (error); |
61ec2127 SL |
954 | } else |
955 | valsize = 0; | |
01eea121 CD |
956 | if ((error = sogetopt((struct socket *)fp->f_data, SCARG(uap, level), |
957 | SCARG(uap, name), &m)) == 0 && SCARG(uap, val) && valsize && | |
958 | m != NULL) { | |
d2cba8de SL |
959 | if (valsize > m->m_len) |
960 | valsize = m->m_len; | |
01eea121 CD |
961 | error = copyout(mtod(m, caddr_t), SCARG(uap, val), |
962 | (u_int)valsize); | |
76ffad7c MK |
963 | if (error == 0) |
964 | error = copyout((caddr_t)&valsize, | |
01eea121 | 965 | (caddr_t)SCARG(uap, avalsize), sizeof (valsize)); |
d2cba8de | 966 | } |
d2cba8de SL |
967 | if (m != NULL) |
968 | (void) m_free(m); | |
d9c2f47f | 969 | return (error); |
66f52238 SL |
970 | } |
971 | ||
85843d69 | 972 | /* ARGSUSED */ |
01eea121 | 973 | int |
85843d69 KM |
974 | pipe(p, uap, retval) |
975 | struct proc *p; | |
01eea121 CD |
976 | void *uap; |
977 | register_t *retval; | |
cf012934 | 978 | { |
5e00df3b | 979 | register struct filedesc *fdp = p->p_fd; |
0c9a45f0 | 980 | struct file *rf, *wf; |
cf012934 | 981 | struct socket *rso, *wso; |
76ffad7c | 982 | int fd, error; |
cf012934 | 983 | |
76ffad7c | 984 | if (error = socreate(AF_UNIX, &rso, SOCK_STREAM, 0)) |
d9c2f47f | 985 | return (error); |
76ffad7c | 986 | if (error = socreate(AF_UNIX, &wso, SOCK_STREAM, 0)) |
b242cf10 | 987 | goto free1; |
5e00df3b | 988 | if (error = falloc(p, &rf, &fd)) |
cf012934 | 989 | goto free2; |
85843d69 | 990 | retval[0] = fd; |
cf012934 BJ |
991 | rf->f_flag = FREAD; |
992 | rf->f_type = DTYPE_SOCKET; | |
88a7a62a SL |
993 | rf->f_ops = &socketops; |
994 | rf->f_data = (caddr_t)rso; | |
5e00df3b | 995 | if (error = falloc(p, &wf, &fd)) |
cf012934 BJ |
996 | goto free3; |
997 | wf->f_flag = FWRITE; | |
998 | wf->f_type = DTYPE_SOCKET; | |
88a7a62a SL |
999 | wf->f_ops = &socketops; |
1000 | wf->f_data = (caddr_t)wso; | |
85843d69 | 1001 | retval[1] = fd; |
76ffad7c | 1002 | if (error = unp_connect2(wso, rso)) |
cf012934 | 1003 | goto free4; |
d9c2f47f | 1004 | return (0); |
cf012934 | 1005 | free4: |
336f999d | 1006 | ffree(wf); |
994fd74e | 1007 | fdp->fd_ofiles[retval[1]] = 0; |
cf012934 | 1008 | free3: |
336f999d | 1009 | ffree(rf); |
994fd74e | 1010 | fdp->fd_ofiles[retval[0]] = 0; |
cf012934 | 1011 | free2: |
8011f5df | 1012 | (void)soclose(wso); |
b242cf10 | 1013 | free1: |
8011f5df | 1014 | (void)soclose(rso); |
d9c2f47f | 1015 | return (error); |
cc15ab5d | 1016 | } |
a3076b07 BJ |
1017 | |
1018 | /* | |
70f2eac5 | 1019 | * Get socket name. |
a3076b07 | 1020 | */ |
8ffc8876 | 1021 | #ifdef COMPAT_OLDSOCK |
01eea121 | 1022 | int |
85843d69 KM |
1023 | getsockname(p, uap, retval) |
1024 | struct proc *p; | |
01eea121 CD |
1025 | struct getsockname_args /* { |
1026 | syscallarg(int) fdes; | |
1027 | syscallarg(caddr_t) asa; | |
1028 | syscallarg(int *) alen; | |
1029 | } */ *uap; | |
1030 | register_t *retval; | |
85843d69 | 1031 | { |
76ffad7c | 1032 | |
01eea121 | 1033 | return (getsockname1(p, uap, retval, 0)); |
f4d2893a MK |
1034 | } |
1035 | ||
01eea121 CD |
1036 | int |
1037 | compat_43_getsockname(p, uap, retval) | |
85843d69 | 1038 | struct proc *p; |
01eea121 CD |
1039 | struct getsockname_args /* { |
1040 | syscallarg(int) fdes; | |
1041 | syscallarg(caddr_t) asa; | |
1042 | syscallarg(int *) alen; | |
1043 | } */ *uap; | |
1044 | register_t *retval; | |
85843d69 | 1045 | { |
76ffad7c | 1046 | |
01eea121 | 1047 | return (getsockname1(p, uap, retval, 1)); |
f4d2893a | 1048 | } |
8ffc8876 | 1049 | #else /* COMPAT_OLDSOCK */ |
f4d2893a | 1050 | |
76ffad7c | 1051 | #define getsockname1 getsockname |
f4d2893a | 1052 | #endif |
76ffad7c | 1053 | |
85843d69 | 1054 | /* ARGSUSED */ |
01eea121 CD |
1055 | int |
1056 | getsockname1(p, uap, retval, compat_43) | |
85843d69 | 1057 | struct proc *p; |
01eea121 CD |
1058 | register struct getsockname_args /* { |
1059 | syscallarg(int) fdes; | |
1060 | syscallarg(caddr_t) asa; | |
1061 | syscallarg(int *) alen; | |
1062 | } */ *uap; | |
1063 | register_t *retval; | |
1064 | int compat_43; | |
85843d69 | 1065 | { |
5e00df3b | 1066 | struct file *fp; |
05d69517 | 1067 | register struct socket *so; |
cf012934 | 1068 | struct mbuf *m; |
76ffad7c | 1069 | int len, error; |
a3076b07 | 1070 | |
01eea121 | 1071 | if (error = getsock(p->p_fd, SCARG(uap, fdes), &fp)) |
d9c2f47f | 1072 | return (error); |
01eea121 CD |
1073 | if (error = copyin((caddr_t)SCARG(uap, alen), (caddr_t)&len, |
1074 | sizeof (len))) | |
d9c2f47f | 1075 | return (error); |
88a7a62a | 1076 | so = (struct socket *)fp->f_data; |
cce93e4b | 1077 | m = m_getclr(M_WAIT, MT_SONAME); |
76ffad7c | 1078 | if (m == NULL) |
d9c2f47f | 1079 | return (ENOBUFS); |
76ffad7c | 1080 | if (error = (*so->so_proto->pr_usrreq)(so, PRU_SOCKADDR, 0, m, 0)) |
70f2eac5 SL |
1081 | goto bad; |
1082 | if (len > m->m_len) | |
1083 | len = m->m_len; | |
8ffc8876 | 1084 | #ifdef COMPAT_OLDSOCK |
01eea121 | 1085 | if (compat_43) |
f4d2893a MK |
1086 | mtod(m, struct osockaddr *)->sa_family = |
1087 | mtod(m, struct sockaddr *)->sa_family; | |
1088 | #endif | |
01eea121 | 1089 | error = copyout(mtod(m, caddr_t), (caddr_t)SCARG(uap, asa), (u_int)len); |
76ffad7c | 1090 | if (error == 0) |
01eea121 | 1091 | error = copyout((caddr_t)&len, (caddr_t)SCARG(uap, alen), |
f4d2893a | 1092 | sizeof (len)); |
cf012934 BJ |
1093 | bad: |
1094 | m_freem(m); | |
d9c2f47f | 1095 | return (error); |
cf012934 BJ |
1096 | } |
1097 | ||
f4d2893a MK |
1098 | /* |
1099 | * Get name of peer for connected socket. | |
1100 | */ | |
8ffc8876 | 1101 | #ifdef COMPAT_OLDSOCK |
01eea121 | 1102 | int |
85843d69 KM |
1103 | getpeername(p, uap, retval) |
1104 | struct proc *p; | |
01eea121 CD |
1105 | struct getpeername_args /* { |
1106 | syscallarg(int) fdes; | |
1107 | syscallarg(caddr_t) asa; | |
1108 | syscallarg(int *) alen; | |
1109 | } */ *uap; | |
1110 | register_t *retval; | |
85843d69 | 1111 | { |
76ffad7c | 1112 | |
01eea121 | 1113 | return (getpeername1(p, uap, retval, 0)); |
6d47a3da | 1114 | } |
6d47a3da | 1115 | |
01eea121 CD |
1116 | int |
1117 | compat_43_getpeername(p, uap, retval) | |
85843d69 | 1118 | struct proc *p; |
01eea121 CD |
1119 | struct getpeername_args /* { |
1120 | syscallarg(int) fdes; | |
1121 | syscallarg(caddr_t) asa; | |
1122 | syscallarg(int *) alen; | |
1123 | } */ *uap; | |
1124 | register_t *retval; | |
85843d69 | 1125 | { |
76ffad7c | 1126 | |
01eea121 | 1127 | return (getpeername1(p, uap, retval, 1)); |
f4d2893a | 1128 | } |
8ffc8876 | 1129 | #else /* COMPAT_OLDSOCK */ |
f4d2893a | 1130 | |
76ffad7c | 1131 | #define getpeername1 getpeername |
f4d2893a | 1132 | #endif |
76ffad7c | 1133 | |
85843d69 | 1134 | /* ARGSUSED */ |
01eea121 CD |
1135 | int |
1136 | getpeername1(p, uap, retval, compat_43) | |
85843d69 | 1137 | struct proc *p; |
01eea121 CD |
1138 | register struct getpeername_args /* { |
1139 | syscallarg(int) fdes; | |
1140 | syscallarg(caddr_t) asa; | |
1141 | syscallarg(int *) alen; | |
1142 | } */ *uap; | |
1143 | register_t *retval; | |
1144 | int compat_43; | |
85843d69 | 1145 | { |
5e00df3b | 1146 | struct file *fp; |
a7343092 SL |
1147 | register struct socket *so; |
1148 | struct mbuf *m; | |
76ffad7c | 1149 | int len, error; |
a7343092 | 1150 | |
01eea121 | 1151 | if (error = getsock(p->p_fd, SCARG(uap, fdes), &fp)) |
d9c2f47f | 1152 | return (error); |
a7343092 | 1153 | so = (struct socket *)fp->f_data; |
76ffad7c | 1154 | if ((so->so_state & (SS_ISCONNECTED|SS_ISCONFIRMING)) == 0) |
d9c2f47f | 1155 | return (ENOTCONN); |
01eea121 CD |
1156 | if (error = |
1157 | copyin((caddr_t)SCARG(uap, alen), (caddr_t)&len, sizeof (len))) | |
2c8123d6 | 1158 | return (error); |
a7343092 | 1159 | m = m_getclr(M_WAIT, MT_SONAME); |
76ffad7c | 1160 | if (m == NULL) |
d9c2f47f | 1161 | return (ENOBUFS); |
76ffad7c | 1162 | if (error = (*so->so_proto->pr_usrreq)(so, PRU_PEERADDR, 0, m, 0)) |
a7343092 SL |
1163 | goto bad; |
1164 | if (len > m->m_len) | |
1165 | len = m->m_len; | |
8ffc8876 | 1166 | #ifdef COMPAT_OLDSOCK |
01eea121 | 1167 | if (compat_43) |
f4d2893a MK |
1168 | mtod(m, struct osockaddr *)->sa_family = |
1169 | mtod(m, struct sockaddr *)->sa_family; | |
1170 | #endif | |
01eea121 CD |
1171 | if (error = |
1172 | copyout(mtod(m, caddr_t), (caddr_t)SCARG(uap, asa), (u_int)len)) | |
a7343092 | 1173 | goto bad; |
01eea121 | 1174 | error = copyout((caddr_t)&len, (caddr_t)SCARG(uap, alen), sizeof (len)); |
a7343092 SL |
1175 | bad: |
1176 | m_freem(m); | |
d9c2f47f | 1177 | return (error); |
a7343092 SL |
1178 | } |
1179 | ||
01eea121 | 1180 | int |
7a22a33c MK |
1181 | sockargs(mp, buf, buflen, type) |
1182 | struct mbuf **mp; | |
1183 | caddr_t buf; | |
1184 | int buflen, type; | |
cf012934 | 1185 | { |
1d123e2b | 1186 | register struct sockaddr *sa; |
cf012934 | 1187 | register struct mbuf *m; |
127f7d76 | 1188 | int error; |
cf012934 | 1189 | |
7a22a33c | 1190 | if ((u_int)buflen > MLEN) { |
8ffc8876 | 1191 | #ifdef COMPAT_OLDSOCK |
7a22a33c MK |
1192 | if (type == MT_SONAME && (u_int)buflen <= 112) |
1193 | buflen = MLEN; /* unix domain compat. hack */ | |
3eb6310a MK |
1194 | else |
1195 | #endif | |
cf012934 | 1196 | return (EINVAL); |
3eb6310a | 1197 | } |
98447d3f | 1198 | m = m_get(M_WAIT, type); |
7c52d753 SL |
1199 | if (m == NULL) |
1200 | return (ENOBUFS); | |
7a22a33c MK |
1201 | m->m_len = buflen; |
1202 | error = copyin(buf, mtod(m, caddr_t), (u_int)buflen); | |
01eea121 | 1203 | if (error) { |
cf012934 | 1204 | (void) m_free(m); |
01eea121 CD |
1205 | return (error); |
1206 | } | |
1207 | *mp = m; | |
1208 | if (type == MT_SONAME) { | |
1209 | sa = mtod(m, struct sockaddr *); | |
76ffad7c | 1210 | |
8ffc8876 | 1211 | #if defined(COMPAT_OLDSOCK) && BYTE_ORDER != BIG_ENDIAN |
01eea121 CD |
1212 | if (sa->sa_family == 0 && sa->sa_len < AF_MAX) |
1213 | sa->sa_family = sa->sa_len; | |
f4d2893a | 1214 | #endif |
01eea121 | 1215 | sa->sa_len = buflen; |
a2aebb63 | 1216 | } |
01eea121 | 1217 | return (0); |
cf012934 | 1218 | } |
88a7a62a | 1219 | |
01eea121 | 1220 | int |
5e00df3b KM |
1221 | getsock(fdp, fdes, fpp) |
1222 | struct filedesc *fdp; | |
1223 | int fdes; | |
1224 | struct file **fpp; | |
88a7a62a SL |
1225 | { |
1226 | register struct file *fp; | |
1227 | ||
8429d022 | 1228 | if ((unsigned)fdes >= fdp->fd_nfiles || |
994fd74e | 1229 | (fp = fdp->fd_ofiles[fdes]) == NULL) |
5e00df3b KM |
1230 | return (EBADF); |
1231 | if (fp->f_type != DTYPE_SOCKET) | |
1232 | return (ENOTSOCK); | |
1233 | *fpp = fp; | |
1234 | return (0); | |
88a7a62a | 1235 | } |