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Commit | Line | Data |
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e852e889 | 1 | /* |
a7ab6ec8 | 2 | * svc_unix.c, Server side for TCP/IP based RPC. |
e852e889 | 3 | * |
2b778ceb | 4 | * Copyright (C) 2012-2021 Free Software Foundation, Inc. |
14bc93a9 JL |
5 | * This file is part of the GNU C Library. |
6 | * | |
7 | * The GNU C Library is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2.1 of the License, or (at your option) any later version. | |
11 | * | |
12 | * The GNU C Library 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 GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with the GNU C Library; if not, see | |
5a82c748 | 19 | * <https://www.gnu.org/licenses/>. |
14bc93a9 | 20 | * |
a7ab6ec8 | 21 | * Copyright (c) 2010, Oracle America, Inc. |
e852e889 | 22 | * |
a7ab6ec8 UD |
23 | * Redistribution and use in source and binary forms, with or without |
24 | * modification, are permitted provided that the following conditions are | |
25 | * met: | |
e852e889 | 26 | * |
a7ab6ec8 UD |
27 | * * Redistributions of source code must retain the above copyright |
28 | * notice, this list of conditions and the following disclaimer. | |
29 | * * Redistributions in binary form must reproduce the above | |
30 | * copyright notice, this list of conditions and the following | |
31 | * disclaimer in the documentation and/or other materials | |
32 | * provided with the distribution. | |
33 | * * Neither the name of the "Oracle America, Inc." nor the names of its | |
34 | * contributors may be used to endorse or promote products derived | |
35 | * from this software without specific prior written permission. | |
cb636bb2 | 36 | * |
a7ab6ec8 UD |
37 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
38 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
39 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
40 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
41 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
42 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
43 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE | |
44 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
45 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
46 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
47 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
48 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
e852e889 UD |
49 | * |
50 | * Actually implements two flavors of transporter - | |
51 | * a unix rendezvouser (a listener and connection establisher) | |
52 | * and a record/unix stream. | |
53 | */ | |
54 | ||
55 | #include <stdio.h> | |
56 | #include <unistd.h> | |
57 | #include <string.h> | |
58 | #include <rpc/rpc.h> | |
e4aced47 | 59 | #include <rpc/svc.h> |
e852e889 UD |
60 | #include <sys/socket.h> |
61 | #include <sys/uio.h> | |
090ca000 | 62 | #include <sys/poll.h> |
e852e889 UD |
63 | #include <errno.h> |
64 | #include <stdlib.h> | |
4360eafd | 65 | #include <libintl.h> |
3ce1f295 | 66 | #include <wchar.h> |
82f43dd2 | 67 | #include <shlib-compat.h> |
51028f34 | 68 | |
e852e889 UD |
69 | /* |
70 | * Ops vector for AF_UNIX based rpc service handle | |
71 | */ | |
72 | static bool_t svcunix_recv (SVCXPRT *, struct rpc_msg *); | |
73 | static enum xprt_stat svcunix_stat (SVCXPRT *); | |
74 | static bool_t svcunix_getargs (SVCXPRT *, xdrproc_t, caddr_t); | |
75 | static bool_t svcunix_reply (SVCXPRT *, struct rpc_msg *); | |
76 | static bool_t svcunix_freeargs (SVCXPRT *, xdrproc_t, caddr_t); | |
77 | static void svcunix_destroy (SVCXPRT *); | |
78 | ||
79 | static const struct xp_ops svcunix_op = | |
80 | { | |
81 | svcunix_recv, | |
82 | svcunix_stat, | |
83 | svcunix_getargs, | |
84 | svcunix_reply, | |
85 | svcunix_freeargs, | |
86 | svcunix_destroy | |
87 | }; | |
88 | ||
89 | /* | |
90 | * Ops vector for AF_UNIX rendezvous handler | |
91 | */ | |
92 | static bool_t rendezvous_request (SVCXPRT *, struct rpc_msg *); | |
93 | static enum xprt_stat rendezvous_stat (SVCXPRT *); | |
a49d0179 | 94 | static void svcunix_rendezvous_abort (void) __attribute__ ((__noreturn__)); |
4b9afc43 UD |
95 | |
96 | /* This function makes sure abort() relocation goes through PLT | |
97 | and thus can be lazy bound. */ | |
98 | static void | |
99 | svcunix_rendezvous_abort (void) | |
100 | { | |
101 | abort (); | |
102 | }; | |
e852e889 UD |
103 | |
104 | static const struct xp_ops svcunix_rendezvous_op = | |
105 | { | |
106 | rendezvous_request, | |
107 | rendezvous_stat, | |
4b9afc43 UD |
108 | (bool_t (*) (SVCXPRT *, xdrproc_t, caddr_t)) svcunix_rendezvous_abort, |
109 | (bool_t (*) (SVCXPRT *, struct rpc_msg *)) svcunix_rendezvous_abort, | |
110 | (bool_t (*) (SVCXPRT *, xdrproc_t, caddr_t)) svcunix_rendezvous_abort, | |
e852e889 UD |
111 | svcunix_destroy |
112 | }; | |
113 | ||
114 | static int readunix (char*, char *, int); | |
115 | static int writeunix (char *, char *, int); | |
ca4ec803 | 116 | static SVCXPRT *makefd_xprt (int, u_int, u_int); |
e852e889 UD |
117 | |
118 | struct unix_rendezvous { /* kept in xprt->xp_p1 */ | |
119 | u_int sendsize; | |
120 | u_int recvsize; | |
121 | }; | |
122 | ||
123 | struct unix_conn { /* kept in xprt->xp_p1 */ | |
124 | enum xprt_stat strm_stat; | |
125 | u_long x_id; | |
126 | XDR xdrs; | |
127 | char verf_body[MAX_AUTH_BYTES]; | |
128 | }; | |
129 | ||
130 | /* | |
131 | * Usage: | |
132 | * xprt = svcunix_create(sock, send_buf_size, recv_buf_size); | |
133 | * | |
134 | * Creates, registers, and returns a (rpc) unix based transporter. | |
135 | * Once *xprt is initialized, it is registered as a transporter | |
136 | * see (svc.h, xprt_register). This routine returns | |
137 | * a NULL if a problem occurred. | |
138 | * | |
139 | * If sock<0 then a socket is created, else sock is used. | |
140 | * If the socket, sock is not bound to a port then svcunix_create | |
141 | * binds it to an arbitrary port. The routine then starts a unix | |
142 | * listener on the socket's associated port. In any (successful) case, | |
143 | * xprt->xp_sock is the registered socket number and xprt->xp_port is the | |
144 | * associated port number. | |
145 | * | |
146 | * Since unix streams do buffered io similar to stdio, the caller can specify | |
147 | * how big the send and receive buffers are via the second and third parms; | |
148 | * 0 => use the system default. | |
149 | */ | |
150 | SVCXPRT * | |
151 | svcunix_create (int sock, u_int sendsize, u_int recvsize, char *path) | |
152 | { | |
153 | bool_t madesock = FALSE; | |
154 | SVCXPRT *xprt; | |
155 | struct unix_rendezvous *r; | |
156 | struct sockaddr_un addr; | |
157 | socklen_t len = sizeof (struct sockaddr_in); | |
158 | ||
159 | if (sock == RPC_ANYSOCK) | |
160 | { | |
161 | if ((sock = __socket (AF_UNIX, SOCK_STREAM, 0)) < 0) | |
162 | { | |
163 | perror (_("svc_unix.c - AF_UNIX socket creation problem")); | |
164 | return (SVCXPRT *) NULL; | |
165 | } | |
166 | madesock = TRUE; | |
167 | } | |
168 | memset (&addr, '\0', sizeof (addr)); | |
169 | addr.sun_family = AF_UNIX; | |
c3966b88 | 170 | len = strlen (path) + 1; |
e852e889 UD |
171 | memcpy (addr.sun_path, path, len); |
172 | len += sizeof (addr.sun_family); | |
173 | ||
b2bffca2 | 174 | __bind (sock, (struct sockaddr *) &addr, len); |
e852e889 | 175 | |
b2bffca2 | 176 | if (__getsockname (sock, (struct sockaddr *) &addr, &len) != 0 |
a3a449c1 | 177 | || __listen (sock, SOMAXCONN) != 0) |
e852e889 UD |
178 | { |
179 | perror (_("svc_unix.c - cannot getsockname or listen")); | |
180 | if (madesock) | |
181 | __close (sock); | |
182 | return (SVCXPRT *) NULL; | |
183 | } | |
184 | ||
185 | r = (struct unix_rendezvous *) mem_alloc (sizeof (*r)); | |
51028f34 UD |
186 | xprt = (SVCXPRT *) mem_alloc (sizeof (SVCXPRT)); |
187 | if (r == NULL || xprt == NULL) | |
e852e889 | 188 | { |
1d20f7f8 | 189 | __fxprintf (NULL, "%s: %s", __func__, _("out of memory\n")); |
2e3e5db6 UD |
190 | mem_free (r, sizeof (*r)); |
191 | mem_free (xprt, sizeof (SVCXPRT)); | |
e852e889 UD |
192 | return NULL; |
193 | } | |
194 | r->sendsize = sendsize; | |
195 | r->recvsize = recvsize; | |
e852e889 UD |
196 | xprt->xp_p2 = NULL; |
197 | xprt->xp_p1 = (caddr_t) r; | |
198 | xprt->xp_verf = _null_auth; | |
199 | xprt->xp_ops = &svcunix_rendezvous_op; | |
200 | xprt->xp_port = -1; | |
201 | xprt->xp_sock = sock; | |
202 | xprt_register (xprt); | |
203 | return xprt; | |
204 | } | |
021db4be | 205 | libc_hidden_nolink_sunrpc (svcunix_create, GLIBC_2_1) |
e852e889 UD |
206 | |
207 | /* | |
208 | * Like svunix_create(), except the routine takes any *open* UNIX file | |
209 | * descriptor as its first input. | |
210 | */ | |
211 | SVCXPRT * | |
212 | svcunixfd_create (int fd, u_int sendsize, u_int recvsize) | |
213 | { | |
214 | return makefd_xprt (fd, sendsize, recvsize); | |
215 | } | |
021db4be | 216 | libc_hidden_nolink_sunrpc (svcunixfd_create, GLIBC_2_1) |
e852e889 UD |
217 | |
218 | static SVCXPRT * | |
e852e889 UD |
219 | makefd_xprt (int fd, u_int sendsize, u_int recvsize) |
220 | { | |
221 | SVCXPRT *xprt; | |
222 | struct unix_conn *cd; | |
223 | ||
224 | xprt = (SVCXPRT *) mem_alloc (sizeof (SVCXPRT)); | |
e852e889 | 225 | cd = (struct unix_conn *) mem_alloc (sizeof (struct unix_conn)); |
51028f34 | 226 | if (xprt == (SVCXPRT *) NULL || cd == (struct unix_conn *) NULL) |
e852e889 | 227 | { |
1d20f7f8 UD |
228 | (void) __fxprintf (NULL, "%s: %s", "svc_unix: makefd_xprt", |
229 | _("out of memory\n")); | |
2e3e5db6 UD |
230 | mem_free (xprt, sizeof (SVCXPRT)); |
231 | mem_free (cd, sizeof (struct unix_conn)); | |
51028f34 | 232 | return NULL; |
e852e889 UD |
233 | } |
234 | cd->strm_stat = XPRT_IDLE; | |
7b57bfe5 UD |
235 | xdrrec_create (&(cd->xdrs), sendsize, recvsize, |
236 | (caddr_t) xprt, readunix, writeunix); | |
e852e889 UD |
237 | xprt->xp_p2 = NULL; |
238 | xprt->xp_p1 = (caddr_t) cd; | |
239 | xprt->xp_verf.oa_base = cd->verf_body; | |
240 | xprt->xp_addrlen = 0; | |
241 | xprt->xp_ops = &svcunix_op; /* truly deals with calls */ | |
242 | xprt->xp_port = 0; /* this is a connection, not a rendezvouser */ | |
243 | xprt->xp_sock = fd; | |
244 | xprt_register (xprt); | |
e852e889 UD |
245 | return xprt; |
246 | } | |
247 | ||
248 | static bool_t | |
249 | rendezvous_request (SVCXPRT *xprt, struct rpc_msg *errmsg) | |
250 | { | |
251 | int sock; | |
252 | struct unix_rendezvous *r; | |
253 | struct sockaddr_un addr; | |
254 | struct sockaddr_in in_addr; | |
255 | socklen_t len; | |
256 | ||
257 | r = (struct unix_rendezvous *) xprt->xp_p1; | |
258 | again: | |
259 | len = sizeof (struct sockaddr_un); | |
260 | if ((sock = accept (xprt->xp_sock, (struct sockaddr *) &addr, &len)) < 0) | |
261 | { | |
262 | if (errno == EINTR) | |
263 | goto again; | |
14bc93a9 | 264 | __svc_accept_failed (); |
e852e889 UD |
265 | return FALSE; |
266 | } | |
267 | /* | |
268 | * make a new transporter (re-uses xprt) | |
269 | */ | |
270 | memset (&in_addr, '\0', sizeof (in_addr)); | |
271 | in_addr.sin_family = AF_UNIX; | |
272 | xprt = makefd_xprt (sock, r->sendsize, r->recvsize); | |
4b2e40a9 SL |
273 | |
274 | /* If we are out of memory, makefd_xprt has already dumped an error. */ | |
275 | if (xprt == NULL) | |
276 | { | |
277 | __svc_wait_on_error (); | |
278 | return FALSE; | |
279 | } | |
280 | ||
c1301d9a | 281 | memcpy (&xprt->xp_raddr, &in_addr, sizeof (in_addr)); |
e852e889 UD |
282 | xprt->xp_addrlen = len; |
283 | return FALSE; /* there is never an rpc msg to be processed */ | |
284 | } | |
285 | ||
286 | static enum xprt_stat | |
287 | rendezvous_stat (SVCXPRT *xprt) | |
288 | { | |
289 | return XPRT_IDLE; | |
290 | } | |
291 | ||
292 | static void | |
293 | svcunix_destroy (SVCXPRT *xprt) | |
294 | { | |
295 | struct unix_conn *cd = (struct unix_conn *) xprt->xp_p1; | |
296 | ||
297 | xprt_unregister (xprt); | |
298 | __close (xprt->xp_sock); | |
299 | if (xprt->xp_port != 0) | |
300 | { | |
301 | /* a rendezvouser socket */ | |
302 | xprt->xp_port = 0; | |
303 | } | |
304 | else | |
305 | { | |
306 | /* an actual connection socket */ | |
307 | XDR_DESTROY (&(cd->xdrs)); | |
308 | } | |
309 | mem_free ((caddr_t) cd, sizeof (struct unix_conn)); | |
310 | mem_free ((caddr_t) xprt, sizeof (SVCXPRT)); | |
311 | } | |
312 | ||
c5720a93 | 313 | #ifdef SCM_CREDENTIALS |
e852e889 UD |
314 | struct cmessage { |
315 | struct cmsghdr cmsg; | |
7ce241a0 | 316 | struct ucred cmcred; |
d1275afe AS |
317 | /* hack to make sure we have enough memory */ |
318 | char dummy[(CMSG_ALIGN (sizeof (struct ucred)) - sizeof (struct ucred) + sizeof (long))]; | |
e852e889 UD |
319 | }; |
320 | ||
321 | /* XXX This is not thread safe, but since the main functions in svc.c | |
322 | and the rpcgen generated *_svc functions for the daemon are also not | |
323 | thread safe and uses static global variables, it doesn't matter. */ | |
324 | static struct cmessage cm; | |
c5720a93 | 325 | #endif |
e852e889 UD |
326 | |
327 | static int | |
d1275afe | 328 | __msgread (int sock, void *data, size_t cnt) |
e852e889 | 329 | { |
d1275afe | 330 | struct iovec iov; |
e852e889 | 331 | struct msghdr msg; |
d1275afe | 332 | int len; |
e852e889 | 333 | |
d1275afe AS |
334 | iov.iov_base = data; |
335 | iov.iov_len = cnt; | |
e852e889 | 336 | |
d1275afe | 337 | msg.msg_iov = &iov; |
e852e889 UD |
338 | msg.msg_iovlen = 1; |
339 | msg.msg_name = NULL; | |
340 | msg.msg_namelen = 0; | |
c5720a93 | 341 | #ifdef SCM_CREDENTIALS |
e852e889 UD |
342 | msg.msg_control = (caddr_t) &cm; |
343 | msg.msg_controllen = sizeof (struct cmessage); | |
c5720a93 | 344 | #endif |
e852e889 UD |
345 | msg.msg_flags = 0; |
346 | ||
7cabd57c | 347 | #ifdef SO_PASSCRED |
d76240d7 RM |
348 | { |
349 | int on = 1; | |
b2bffca2 | 350 | if (__setsockopt (sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof (on))) |
d76240d7 RM |
351 | return -1; |
352 | } | |
7cabd57c | 353 | #endif |
e852e889 | 354 | |
d1275afe | 355 | restart: |
b2bffca2 | 356 | len = __recvmsg (sock, &msg, 0); |
d1275afe AS |
357 | if (len >= 0) |
358 | { | |
359 | if (msg.msg_flags & MSG_CTRUNC || len == 0) | |
7b57bfe5 | 360 | return 0; |
d1275afe | 361 | else |
7b57bfe5 | 362 | return len; |
d1275afe AS |
363 | } |
364 | if (errno == EINTR) | |
365 | goto restart; | |
366 | return -1; | |
e852e889 UD |
367 | } |
368 | ||
369 | static int | |
d1275afe | 370 | __msgwrite (int sock, void *data, size_t cnt) |
e852e889 | 371 | { |
7ce241a0 | 372 | #ifndef SCM_CREDENTIALS |
e852e889 UD |
373 | /* We cannot implement this reliably. */ |
374 | __set_errno (ENOSYS); | |
786a5421 | 375 | return -1; |
e852e889 | 376 | #else |
d1275afe | 377 | struct iovec iov; |
e852e889 | 378 | struct msghdr msg; |
d1275afe AS |
379 | struct cmsghdr *cmsg = &cm.cmsg; |
380 | struct ucred cred; | |
381 | int len; | |
382 | ||
383 | /* XXX I'm not sure, if gete?id() is always correct, or if we should use | |
384 | get?id(). But since keyserv needs geteuid(), we have no other chance. | |
385 | It would be much better, if the kernel could pass both to the server. */ | |
386 | cred.pid = __getpid (); | |
387 | cred.uid = __geteuid (); | |
388 | cred.gid = __getegid (); | |
389 | ||
390 | memcpy (CMSG_DATA(cmsg), &cred, sizeof (struct ucred)); | |
391 | cmsg->cmsg_level = SOL_SOCKET; | |
392 | cmsg->cmsg_type = SCM_CREDENTIALS; | |
393 | cmsg->cmsg_len = sizeof(*cmsg) + sizeof(struct ucred); | |
394 | ||
395 | iov.iov_base = data; | |
396 | iov.iov_len = cnt; | |
397 | ||
398 | msg.msg_iov = &iov; | |
e852e889 UD |
399 | msg.msg_iovlen = 1; |
400 | msg.msg_name = NULL; | |
401 | msg.msg_namelen = 0; | |
d1275afe AS |
402 | msg.msg_control = cmsg; |
403 | msg.msg_controllen = CMSG_ALIGN(cmsg->cmsg_len); | |
e852e889 UD |
404 | msg.msg_flags = 0; |
405 | ||
d1275afe | 406 | restart: |
b2bffca2 | 407 | len = __sendmsg (sock, &msg, 0); |
d1275afe AS |
408 | if (len >= 0) |
409 | return len; | |
410 | if (errno == EINTR) | |
411 | goto restart; | |
412 | return -1; | |
413 | ||
e852e889 UD |
414 | #endif |
415 | } | |
416 | ||
e852e889 UD |
417 | /* |
418 | * reads data from the unix connection. | |
419 | * any error is fatal and the connection is closed. | |
420 | * (And a read of zero bytes is a half closed stream => error.) | |
421 | */ | |
422 | static int | |
423 | readunix (char *xprtptr, char *buf, int len) | |
424 | { | |
425 | SVCXPRT *xprt = (SVCXPRT *) xprtptr; | |
426 | int sock = xprt->xp_sock; | |
090ca000 UD |
427 | int milliseconds = 35 * 1000; |
428 | struct pollfd pollfd; | |
429 | ||
430 | do | |
e852e889 | 431 | { |
090ca000 UD |
432 | pollfd.fd = sock; |
433 | pollfd.events = POLLIN; | |
434 | switch (__poll (&pollfd, 1, milliseconds)) | |
e852e889 | 435 | { |
090ca000 | 436 | case -1: |
e852e889 UD |
437 | if (errno == EINTR) |
438 | continue; | |
090ca000 UD |
439 | /*FALLTHROUGH*/ |
440 | case 0: | |
e852e889 | 441 | goto fatal_err; |
090ca000 | 442 | default: |
f1317ef5 UD |
443 | if ((pollfd.revents & POLLERR) || (pollfd.revents & POLLHUP) |
444 | || (pollfd.revents & POLLNVAL)) | |
445 | goto fatal_err; | |
090ca000 | 446 | break; |
e852e889 | 447 | } |
e852e889 | 448 | } |
090ca000 | 449 | while ((pollfd.revents & POLLIN) == 0); |
e852e889 UD |
450 | |
451 | if ((len = __msgread (sock, buf, len)) > 0) | |
452 | return len; | |
453 | ||
454 | fatal_err: | |
455 | ((struct unix_conn *) (xprt->xp_p1))->strm_stat = XPRT_DIED; | |
456 | return -1; | |
457 | } | |
458 | ||
459 | /* | |
460 | * writes data to the unix connection. | |
461 | * Any error is fatal and the connection is closed. | |
462 | */ | |
463 | static int | |
464 | writeunix (char *xprtptr, char * buf, int len) | |
465 | { | |
466 | SVCXPRT *xprt = (SVCXPRT *) xprtptr; | |
467 | int i, cnt; | |
468 | ||
469 | for (cnt = len; cnt > 0; cnt -= i, buf += i) | |
470 | { | |
471 | if ((i = __msgwrite (xprt->xp_sock, buf, cnt)) < 0) | |
472 | { | |
473 | ((struct unix_conn *) (xprt->xp_p1))->strm_stat = XPRT_DIED; | |
474 | return -1; | |
475 | } | |
476 | } | |
477 | return len; | |
478 | } | |
479 | ||
480 | static enum xprt_stat | |
481 | svcunix_stat (SVCXPRT *xprt) | |
482 | { | |
483 | struct unix_conn *cd = | |
484 | (struct unix_conn *) (xprt->xp_p1); | |
485 | ||
486 | if (cd->strm_stat == XPRT_DIED) | |
487 | return XPRT_DIED; | |
7b57bfe5 | 488 | if (!xdrrec_eof (&(cd->xdrs))) |
e852e889 UD |
489 | return XPRT_MOREREQS; |
490 | return XPRT_IDLE; | |
491 | } | |
492 | ||
493 | static bool_t | |
494 | svcunix_recv (SVCXPRT *xprt, struct rpc_msg *msg) | |
495 | { | |
496 | struct unix_conn *cd = (struct unix_conn *) (xprt->xp_p1); | |
497 | XDR *xdrs = &(cd->xdrs); | |
498 | ||
499 | xdrs->x_op = XDR_DECODE; | |
7b57bfe5 UD |
500 | xdrrec_skiprecord (xdrs); |
501 | if (xdr_callmsg (xdrs, msg)) | |
e852e889 UD |
502 | { |
503 | cd->x_id = msg->rm_xid; | |
504 | /* set up verifiers */ | |
c5720a93 | 505 | #ifdef SCM_CREDENTIALS |
d1275afe | 506 | msg->rm_call.cb_verf.oa_flavor = AUTH_UNIX; |
e852e889 UD |
507 | msg->rm_call.cb_verf.oa_base = (caddr_t) &cm; |
508 | msg->rm_call.cb_verf.oa_length = sizeof (cm); | |
c5720a93 | 509 | #endif |
e852e889 UD |
510 | return TRUE; |
511 | } | |
512 | cd->strm_stat = XPRT_DIED; /* XXXX */ | |
513 | return FALSE; | |
514 | } | |
515 | ||
516 | static bool_t | |
517 | svcunix_getargs (SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr) | |
518 | { | |
519 | return (*xdr_args) (&(((struct unix_conn *) (xprt->xp_p1))->xdrs), | |
520 | args_ptr); | |
521 | } | |
522 | ||
523 | static bool_t | |
090ca000 | 524 | svcunix_freeargs (SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr) |
e852e889 UD |
525 | { |
526 | XDR *xdrs = &(((struct unix_conn *) (xprt->xp_p1))->xdrs); | |
527 | ||
528 | xdrs->x_op = XDR_FREE; | |
529 | return (*xdr_args) (xdrs, args_ptr); | |
530 | } | |
531 | ||
532 | static bool_t | |
090ca000 | 533 | svcunix_reply (SVCXPRT *xprt, struct rpc_msg *msg) |
e852e889 UD |
534 | { |
535 | struct unix_conn *cd = (struct unix_conn *) (xprt->xp_p1); | |
536 | XDR *xdrs = &(cd->xdrs); | |
537 | bool_t stat; | |
538 | ||
539 | xdrs->x_op = XDR_ENCODE; | |
540 | msg->rm_xid = cd->x_id; | |
7b57bfe5 UD |
541 | stat = xdr_replymsg (xdrs, msg); |
542 | (void) xdrrec_endofrecord (xdrs, TRUE); | |
e852e889 UD |
543 | return stat; |
544 | } |