39
40/*
41 * key_call.c, Interface to keyserver
42 *
43 * setsecretkey(key) - set your secret key
44 * encryptsessionkey(agent, deskey) - encrypt a session key to talk to agent
45 * decryptsessionkey(agent, deskey) - decrypt ditto
46 * gendeskey(deskey) - generate a secure des key
47 */
48
49#include "namespace.h"
50#include "reentrant.h"
51#include <stdio.h>
52#include <stdlib.h>
53#include <unistd.h>
54#include <errno.h>
55#include <rpc/rpc.h>
56#include <rpc/auth.h>
57#include <rpc/auth_unix.h>
58#include <rpc/key_prot.h>
59#include <string.h>
60#include <netconfig.h>
61#include <sys/utsname.h>
62#include <stdlib.h>
63#include <signal.h>
64#include <sys/wait.h>
65#include <sys/fcntl.h>
66#include "un-namespace.h"
67
68
69#define KEY_TIMEOUT 5 /* per-try timeout in seconds */
70#define KEY_NRETRY 12 /* number of retries */
71
72#ifdef DEBUG
73#define debug(msg) (void) fprintf(stderr, "%s\n", msg);
74#else
75#define debug(msg)
76#endif /* DEBUG */
77
78/*
79 * Hack to allow the keyserver to use AUTH_DES (for authenticated
80 * NIS+ calls, for example). The only functions that get called
81 * are key_encryptsession_pk, key_decryptsession_pk, and key_gendes.
82 *
83 * The approach is to have the keyserver fill in pointers to local
84 * implementations of these functions, and to call those in key_call().
85 */
86
87cryptkeyres *(*__key_encryptsession_pk_LOCAL)() = 0;
88cryptkeyres *(*__key_decryptsession_pk_LOCAL)() = 0;
89des_block *(*__key_gendes_LOCAL)() = 0;
90
91static int key_call( u_long, xdrproc_t, char *, xdrproc_t, char * );
92
93int
94key_setsecret(secretkey)
95 const char *secretkey;
96{
97 keystatus status;
98
99 if (!key_call((u_long) KEY_SET, xdr_keybuf, (char *) secretkey,
100 xdr_keystatus, (char *)&status)) {
101 return (-1);
102 }
103 if (status != KEY_SUCCESS) {
104 debug("set status is nonzero");
105 return (-1);
106 }
107 return (0);
108}
109
110
111/* key_secretkey_is_set() returns 1 if the keyserver has a secret key
112 * stored for the caller's effective uid; it returns 0 otherwise
113 *
114 * N.B.: The KEY_NET_GET key call is undocumented. Applications shouldn't
115 * be using it, because it allows them to get the user's secret key.
116 */
117
118int
119key_secretkey_is_set(void)
120{
121 struct key_netstres kres;
122
123 memset((void*)&kres, 0, sizeof (kres));
124 if (key_call((u_long) KEY_NET_GET, xdr_void, (char *)NULL,
125 xdr_key_netstres, (char *) &kres) &&
126 (kres.status == KEY_SUCCESS) &&
127 (kres.key_netstres_u.knet.st_priv_key[0] != 0)) {
128 /* avoid leaving secret key in memory */
129 memset(kres.key_netstres_u.knet.st_priv_key, 0, HEXKEYBYTES);
130 return (1);
131 }
132 return (0);
133}
134
135int
136key_encryptsession_pk(remotename, remotekey, deskey)
137 char *remotename;
138 netobj *remotekey;
139 des_block *deskey;
140{
141 cryptkeyarg2 arg;
142 cryptkeyres res;
143
144 arg.remotename = remotename;
145 arg.remotekey = *remotekey;
146 arg.deskey = *deskey;
147 if (!key_call((u_long)KEY_ENCRYPT_PK, xdr_cryptkeyarg2, (char *)&arg,
148 xdr_cryptkeyres, (char *)&res)) {
149 return (-1);
150 }
151 if (res.status != KEY_SUCCESS) {
152 debug("encrypt status is nonzero");
153 return (-1);
154 }
155 *deskey = res.cryptkeyres_u.deskey;
156 return (0);
157}
158
159int
160key_decryptsession_pk(remotename, remotekey, deskey)
161 char *remotename;
162 netobj *remotekey;
163 des_block *deskey;
164{
165 cryptkeyarg2 arg;
166 cryptkeyres res;
167
168 arg.remotename = remotename;
169 arg.remotekey = *remotekey;
170 arg.deskey = *deskey;
171 if (!key_call((u_long)KEY_DECRYPT_PK, xdr_cryptkeyarg2, (char *)&arg,
172 xdr_cryptkeyres, (char *)&res)) {
173 return (-1);
174 }
175 if (res.status != KEY_SUCCESS) {
176 debug("decrypt status is nonzero");
177 return (-1);
178 }
179 *deskey = res.cryptkeyres_u.deskey;
180 return (0);
181}
182
183int
184key_encryptsession(remotename, deskey)
185 const char *remotename;
186 des_block *deskey;
187{
188 cryptkeyarg arg;
189 cryptkeyres res;
190
191 arg.remotename = (char *) remotename;
192 arg.deskey = *deskey;
193 if (!key_call((u_long)KEY_ENCRYPT, xdr_cryptkeyarg, (char *)&arg,
194 xdr_cryptkeyres, (char *)&res)) {
195 return (-1);
196 }
197 if (res.status != KEY_SUCCESS) {
198 debug("encrypt status is nonzero");
199 return (-1);
200 }
201 *deskey = res.cryptkeyres_u.deskey;
202 return (0);
203}
204
205int
206key_decryptsession(remotename, deskey)
207 const char *remotename;
208 des_block *deskey;
209{
210 cryptkeyarg arg;
211 cryptkeyres res;
212
213 arg.remotename = (char *) remotename;
214 arg.deskey = *deskey;
215 if (!key_call((u_long)KEY_DECRYPT, xdr_cryptkeyarg, (char *)&arg,
216 xdr_cryptkeyres, (char *)&res)) {
217 return (-1);
218 }
219 if (res.status != KEY_SUCCESS) {
220 debug("decrypt status is nonzero");
221 return (-1);
222 }
223 *deskey = res.cryptkeyres_u.deskey;
224 return (0);
225}
226
227int
228key_gendes(key)
229 des_block *key;
230{
231 if (!key_call((u_long)KEY_GEN, xdr_void, (char *)NULL,
232 xdr_des_block, (char *)key)) {
233 return (-1);
234 }
235 return (0);
236}
237
238int
239key_setnet(arg)
240struct key_netstarg *arg;
241{
242 keystatus status;
243
244
245 if (!key_call((u_long) KEY_NET_PUT, xdr_key_netstarg, (char *) arg,
246 xdr_keystatus, (char *) &status)){
247 return (-1);
248 }
249
250 if (status != KEY_SUCCESS) {
251 debug("key_setnet status is nonzero");
252 return (-1);
253 }
254 return (1);
255}
256
257
258int
259key_get_conv(pkey, deskey)
260 char *pkey;
261 des_block *deskey;
262{
263 cryptkeyres res;
264
265 if (!key_call((u_long) KEY_GET_CONV, xdr_keybuf, pkey,
266 xdr_cryptkeyres, (char *)&res)) {
267 return (-1);
268 }
269 if (res.status != KEY_SUCCESS) {
270 debug("get_conv status is nonzero");
271 return (-1);
272 }
273 *deskey = res.cryptkeyres_u.deskey;
274 return (0);
275}
276
277struct key_call_private {
278 CLIENT *client; /* Client handle */
279 pid_t pid; /* process-id at moment of creation */
280 uid_t uid; /* user-id at last authorization */
281};
282static struct key_call_private *key_call_private_main = NULL;
283
284static void
285key_call_destroy(void *vp)
286{
287 struct key_call_private *kcp = (struct key_call_private *)vp;
288
289 if (kcp) {
290 if (kcp->client)
291 clnt_destroy(kcp->client);
292 free(kcp);
293 }
294}
295
296/*
297 * Keep the handle cached. This call may be made quite often.
298 */
299static CLIENT *
300getkeyserv_handle(vers)
301int vers;
302{
303 void *localhandle;
304 struct netconfig *nconf;
305 struct netconfig *tpconf;
306 struct key_call_private *kcp = key_call_private_main;
307 struct timeval wait_time;
308 struct utsname u;
309 int main_thread;
310 int fd;
311 static thread_key_t key_call_key;
312 extern mutex_t tsd_lock;
313
314#define TOTAL_TIMEOUT 30 /* total timeout talking to keyserver */
315#define TOTAL_TRIES 5 /* Number of tries */
316
317 if ((main_thread = thr_main())) {
318 kcp = key_call_private_main;
319 } else {
320 if (key_call_key == 0) {
321 mutex_lock(&tsd_lock);
322 if (key_call_key == 0)
323 thr_keycreate(&key_call_key, key_call_destroy);
324 mutex_unlock(&tsd_lock);
325 }
326 kcp = (struct key_call_private *)thr_getspecific(key_call_key);
327 }
328 if (kcp == (struct key_call_private *)NULL) {
329 kcp = (struct key_call_private *)malloc(sizeof (*kcp));
330 if (kcp == (struct key_call_private *)NULL) {
331 return ((CLIENT *) NULL);
332 }
333 if (main_thread)
334 key_call_private_main = kcp;
335 else
336 thr_setspecific(key_call_key, (void *) kcp);
337 kcp->client = NULL;
338 }
339
340 /* if pid has changed, destroy client and rebuild */
341 if (kcp->client != NULL && kcp->pid != getpid()) {
342 clnt_destroy(kcp->client);
343 kcp->client = NULL;
344 }
345
346 if (kcp->client != NULL) {
347 /* if uid has changed, build client handle again */
348 if (kcp->uid != geteuid()) {
349 kcp->uid = geteuid();
350 auth_destroy(kcp->client->cl_auth);
351 kcp->client->cl_auth =
352 authsys_create("", kcp->uid, 0, 0, NULL);
353 if (kcp->client->cl_auth == NULL) {
354 clnt_destroy(kcp->client);
355 kcp->client = NULL;
356 return ((CLIENT *) NULL);
357 }
358 }
359 /* Change the version number to the new one */
360 clnt_control(kcp->client, CLSET_VERS, (void *)&vers);
361 return (kcp->client);
362 }
363 if (!(localhandle = setnetconfig())) {
364 return ((CLIENT *) NULL);
365 }
366 tpconf = NULL;
367#if defined(__FreeBSD__)
368 if (uname(&u) == -1)
369#else
370#if defined(i386)
371 if (_nuname(&u) == -1)
372#elif defined(sparc)
373 if (_uname(&u) == -1)
374#else
375#error Unknown architecture!
376#endif
377#endif
378 {
379 endnetconfig(localhandle);
380 return ((CLIENT *) NULL);
381 }
382 while ((nconf = getnetconfig(localhandle)) != NULL) {
383 if (strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0) {
384 /*
385 * We use COTS_ORD here so that the caller can
386 * find out immediately if the server is dead.
387 */
388 if (nconf->nc_semantics == NC_TPI_COTS_ORD) {
389 kcp->client = clnt_tp_create(u.nodename,
390 KEY_PROG, vers, nconf);
391 if (kcp->client)
392 break;
393 } else {
394 tpconf = nconf;
395 }
396 }
397 }
398 if ((kcp->client == (CLIENT *) NULL) && (tpconf))
399 /* Now, try the CLTS or COTS loopback transport */
400 kcp->client = clnt_tp_create(u.nodename,
401 KEY_PROG, vers, tpconf);
402 endnetconfig(localhandle);
403
404 if (kcp->client == (CLIENT *) NULL) {
405 return ((CLIENT *) NULL);
406 }
407 kcp->uid = geteuid();
408 kcp->pid = getpid();
409 kcp->client->cl_auth = authsys_create("", kcp->uid, 0, 0, NULL);
410 if (kcp->client->cl_auth == NULL) {
411 clnt_destroy(kcp->client);
412 kcp->client = NULL;
413 return ((CLIENT *) NULL);
414 }
415
416 wait_time.tv_sec = TOTAL_TIMEOUT/TOTAL_TRIES;
417 wait_time.tv_usec = 0;
418 (void) clnt_control(kcp->client, CLSET_RETRY_TIMEOUT,
419 (char *)&wait_time);
420 if (clnt_control(kcp->client, CLGET_FD, (char *)&fd))
421 _fcntl(fd, F_SETFD, 1); /* make it "close on exec" */
422
423 return (kcp->client);
424}
425
426/* returns 0 on failure, 1 on success */
427
428static int
429key_call(proc, xdr_arg, arg, xdr_rslt, rslt)
430 u_long proc;
431 xdrproc_t xdr_arg;
432 char *arg;
433 xdrproc_t xdr_rslt;
434 char *rslt;
435{
436 CLIENT *clnt;
437 struct timeval wait_time;
438
439 if (proc == KEY_ENCRYPT_PK && __key_encryptsession_pk_LOCAL) {
440 cryptkeyres *res;
441 res = (*__key_encryptsession_pk_LOCAL)(geteuid(), arg);
442 *(cryptkeyres*)rslt = *res;
443 return (1);
444 } else if (proc == KEY_DECRYPT_PK && __key_decryptsession_pk_LOCAL) {
445 cryptkeyres *res;
446 res = (*__key_decryptsession_pk_LOCAL)(geteuid(), arg);
447 *(cryptkeyres*)rslt = *res;
448 return (1);
449 } else if (proc == KEY_GEN && __key_gendes_LOCAL) {
450 des_block *res;
451 res = (*__key_gendes_LOCAL)(geteuid(), 0);
452 *(des_block*)rslt = *res;
453 return (1);
454 }
455
456 if ((proc == KEY_ENCRYPT_PK) || (proc == KEY_DECRYPT_PK) ||
457 (proc == KEY_NET_GET) || (proc == KEY_NET_PUT) ||
458 (proc == KEY_GET_CONV))
459 clnt = getkeyserv_handle(2); /* talk to version 2 */
460 else
461 clnt = getkeyserv_handle(1); /* talk to version 1 */
462
463 if (clnt == NULL) {
464 return (0);
465 }
466
467 wait_time.tv_sec = TOTAL_TIMEOUT;
468 wait_time.tv_usec = 0;
469
470 if (clnt_call(clnt, proc, xdr_arg, arg, xdr_rslt, rslt,
471 wait_time) == RPC_SUCCESS) {
472 return (1);
473 } else {
474 return (0);
475 }
476}
| 37
38/*
39 * key_call.c, Interface to keyserver
40 *
41 * setsecretkey(key) - set your secret key
42 * encryptsessionkey(agent, deskey) - encrypt a session key to talk to agent
43 * decryptsessionkey(agent, deskey) - decrypt ditto
44 * gendeskey(deskey) - generate a secure des key
45 */
46
47#include "namespace.h"
48#include "reentrant.h"
49#include <stdio.h>
50#include <stdlib.h>
51#include <unistd.h>
52#include <errno.h>
53#include <rpc/rpc.h>
54#include <rpc/auth.h>
55#include <rpc/auth_unix.h>
56#include <rpc/key_prot.h>
57#include <string.h>
58#include <netconfig.h>
59#include <sys/utsname.h>
60#include <stdlib.h>
61#include <signal.h>
62#include <sys/wait.h>
63#include <sys/fcntl.h>
64#include "un-namespace.h"
65
66
67#define KEY_TIMEOUT 5 /* per-try timeout in seconds */
68#define KEY_NRETRY 12 /* number of retries */
69
70#ifdef DEBUG
71#define debug(msg) (void) fprintf(stderr, "%s\n", msg);
72#else
73#define debug(msg)
74#endif /* DEBUG */
75
76/*
77 * Hack to allow the keyserver to use AUTH_DES (for authenticated
78 * NIS+ calls, for example). The only functions that get called
79 * are key_encryptsession_pk, key_decryptsession_pk, and key_gendes.
80 *
81 * The approach is to have the keyserver fill in pointers to local
82 * implementations of these functions, and to call those in key_call().
83 */
84
85cryptkeyres *(*__key_encryptsession_pk_LOCAL)() = 0;
86cryptkeyres *(*__key_decryptsession_pk_LOCAL)() = 0;
87des_block *(*__key_gendes_LOCAL)() = 0;
88
89static int key_call( u_long, xdrproc_t, char *, xdrproc_t, char * );
90
91int
92key_setsecret(secretkey)
93 const char *secretkey;
94{
95 keystatus status;
96
97 if (!key_call((u_long) KEY_SET, xdr_keybuf, (char *) secretkey,
98 xdr_keystatus, (char *)&status)) {
99 return (-1);
100 }
101 if (status != KEY_SUCCESS) {
102 debug("set status is nonzero");
103 return (-1);
104 }
105 return (0);
106}
107
108
109/* key_secretkey_is_set() returns 1 if the keyserver has a secret key
110 * stored for the caller's effective uid; it returns 0 otherwise
111 *
112 * N.B.: The KEY_NET_GET key call is undocumented. Applications shouldn't
113 * be using it, because it allows them to get the user's secret key.
114 */
115
116int
117key_secretkey_is_set(void)
118{
119 struct key_netstres kres;
120
121 memset((void*)&kres, 0, sizeof (kres));
122 if (key_call((u_long) KEY_NET_GET, xdr_void, (char *)NULL,
123 xdr_key_netstres, (char *) &kres) &&
124 (kres.status == KEY_SUCCESS) &&
125 (kres.key_netstres_u.knet.st_priv_key[0] != 0)) {
126 /* avoid leaving secret key in memory */
127 memset(kres.key_netstres_u.knet.st_priv_key, 0, HEXKEYBYTES);
128 return (1);
129 }
130 return (0);
131}
132
133int
134key_encryptsession_pk(remotename, remotekey, deskey)
135 char *remotename;
136 netobj *remotekey;
137 des_block *deskey;
138{
139 cryptkeyarg2 arg;
140 cryptkeyres res;
141
142 arg.remotename = remotename;
143 arg.remotekey = *remotekey;
144 arg.deskey = *deskey;
145 if (!key_call((u_long)KEY_ENCRYPT_PK, xdr_cryptkeyarg2, (char *)&arg,
146 xdr_cryptkeyres, (char *)&res)) {
147 return (-1);
148 }
149 if (res.status != KEY_SUCCESS) {
150 debug("encrypt status is nonzero");
151 return (-1);
152 }
153 *deskey = res.cryptkeyres_u.deskey;
154 return (0);
155}
156
157int
158key_decryptsession_pk(remotename, remotekey, deskey)
159 char *remotename;
160 netobj *remotekey;
161 des_block *deskey;
162{
163 cryptkeyarg2 arg;
164 cryptkeyres res;
165
166 arg.remotename = remotename;
167 arg.remotekey = *remotekey;
168 arg.deskey = *deskey;
169 if (!key_call((u_long)KEY_DECRYPT_PK, xdr_cryptkeyarg2, (char *)&arg,
170 xdr_cryptkeyres, (char *)&res)) {
171 return (-1);
172 }
173 if (res.status != KEY_SUCCESS) {
174 debug("decrypt status is nonzero");
175 return (-1);
176 }
177 *deskey = res.cryptkeyres_u.deskey;
178 return (0);
179}
180
181int
182key_encryptsession(remotename, deskey)
183 const char *remotename;
184 des_block *deskey;
185{
186 cryptkeyarg arg;
187 cryptkeyres res;
188
189 arg.remotename = (char *) remotename;
190 arg.deskey = *deskey;
191 if (!key_call((u_long)KEY_ENCRYPT, xdr_cryptkeyarg, (char *)&arg,
192 xdr_cryptkeyres, (char *)&res)) {
193 return (-1);
194 }
195 if (res.status != KEY_SUCCESS) {
196 debug("encrypt status is nonzero");
197 return (-1);
198 }
199 *deskey = res.cryptkeyres_u.deskey;
200 return (0);
201}
202
203int
204key_decryptsession(remotename, deskey)
205 const char *remotename;
206 des_block *deskey;
207{
208 cryptkeyarg arg;
209 cryptkeyres res;
210
211 arg.remotename = (char *) remotename;
212 arg.deskey = *deskey;
213 if (!key_call((u_long)KEY_DECRYPT, xdr_cryptkeyarg, (char *)&arg,
214 xdr_cryptkeyres, (char *)&res)) {
215 return (-1);
216 }
217 if (res.status != KEY_SUCCESS) {
218 debug("decrypt status is nonzero");
219 return (-1);
220 }
221 *deskey = res.cryptkeyres_u.deskey;
222 return (0);
223}
224
225int
226key_gendes(key)
227 des_block *key;
228{
229 if (!key_call((u_long)KEY_GEN, xdr_void, (char *)NULL,
230 xdr_des_block, (char *)key)) {
231 return (-1);
232 }
233 return (0);
234}
235
236int
237key_setnet(arg)
238struct key_netstarg *arg;
239{
240 keystatus status;
241
242
243 if (!key_call((u_long) KEY_NET_PUT, xdr_key_netstarg, (char *) arg,
244 xdr_keystatus, (char *) &status)){
245 return (-1);
246 }
247
248 if (status != KEY_SUCCESS) {
249 debug("key_setnet status is nonzero");
250 return (-1);
251 }
252 return (1);
253}
254
255
256int
257key_get_conv(pkey, deskey)
258 char *pkey;
259 des_block *deskey;
260{
261 cryptkeyres res;
262
263 if (!key_call((u_long) KEY_GET_CONV, xdr_keybuf, pkey,
264 xdr_cryptkeyres, (char *)&res)) {
265 return (-1);
266 }
267 if (res.status != KEY_SUCCESS) {
268 debug("get_conv status is nonzero");
269 return (-1);
270 }
271 *deskey = res.cryptkeyres_u.deskey;
272 return (0);
273}
274
275struct key_call_private {
276 CLIENT *client; /* Client handle */
277 pid_t pid; /* process-id at moment of creation */
278 uid_t uid; /* user-id at last authorization */
279};
280static struct key_call_private *key_call_private_main = NULL;
281
282static void
283key_call_destroy(void *vp)
284{
285 struct key_call_private *kcp = (struct key_call_private *)vp;
286
287 if (kcp) {
288 if (kcp->client)
289 clnt_destroy(kcp->client);
290 free(kcp);
291 }
292}
293
294/*
295 * Keep the handle cached. This call may be made quite often.
296 */
297static CLIENT *
298getkeyserv_handle(vers)
299int vers;
300{
301 void *localhandle;
302 struct netconfig *nconf;
303 struct netconfig *tpconf;
304 struct key_call_private *kcp = key_call_private_main;
305 struct timeval wait_time;
306 struct utsname u;
307 int main_thread;
308 int fd;
309 static thread_key_t key_call_key;
310 extern mutex_t tsd_lock;
311
312#define TOTAL_TIMEOUT 30 /* total timeout talking to keyserver */
313#define TOTAL_TRIES 5 /* Number of tries */
314
315 if ((main_thread = thr_main())) {
316 kcp = key_call_private_main;
317 } else {
318 if (key_call_key == 0) {
319 mutex_lock(&tsd_lock);
320 if (key_call_key == 0)
321 thr_keycreate(&key_call_key, key_call_destroy);
322 mutex_unlock(&tsd_lock);
323 }
324 kcp = (struct key_call_private *)thr_getspecific(key_call_key);
325 }
326 if (kcp == (struct key_call_private *)NULL) {
327 kcp = (struct key_call_private *)malloc(sizeof (*kcp));
328 if (kcp == (struct key_call_private *)NULL) {
329 return ((CLIENT *) NULL);
330 }
331 if (main_thread)
332 key_call_private_main = kcp;
333 else
334 thr_setspecific(key_call_key, (void *) kcp);
335 kcp->client = NULL;
336 }
337
338 /* if pid has changed, destroy client and rebuild */
339 if (kcp->client != NULL && kcp->pid != getpid()) {
340 clnt_destroy(kcp->client);
341 kcp->client = NULL;
342 }
343
344 if (kcp->client != NULL) {
345 /* if uid has changed, build client handle again */
346 if (kcp->uid != geteuid()) {
347 kcp->uid = geteuid();
348 auth_destroy(kcp->client->cl_auth);
349 kcp->client->cl_auth =
350 authsys_create("", kcp->uid, 0, 0, NULL);
351 if (kcp->client->cl_auth == NULL) {
352 clnt_destroy(kcp->client);
353 kcp->client = NULL;
354 return ((CLIENT *) NULL);
355 }
356 }
357 /* Change the version number to the new one */
358 clnt_control(kcp->client, CLSET_VERS, (void *)&vers);
359 return (kcp->client);
360 }
361 if (!(localhandle = setnetconfig())) {
362 return ((CLIENT *) NULL);
363 }
364 tpconf = NULL;
365#if defined(__FreeBSD__)
366 if (uname(&u) == -1)
367#else
368#if defined(i386)
369 if (_nuname(&u) == -1)
370#elif defined(sparc)
371 if (_uname(&u) == -1)
372#else
373#error Unknown architecture!
374#endif
375#endif
376 {
377 endnetconfig(localhandle);
378 return ((CLIENT *) NULL);
379 }
380 while ((nconf = getnetconfig(localhandle)) != NULL) {
381 if (strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0) {
382 /*
383 * We use COTS_ORD here so that the caller can
384 * find out immediately if the server is dead.
385 */
386 if (nconf->nc_semantics == NC_TPI_COTS_ORD) {
387 kcp->client = clnt_tp_create(u.nodename,
388 KEY_PROG, vers, nconf);
389 if (kcp->client)
390 break;
391 } else {
392 tpconf = nconf;
393 }
394 }
395 }
396 if ((kcp->client == (CLIENT *) NULL) && (tpconf))
397 /* Now, try the CLTS or COTS loopback transport */
398 kcp->client = clnt_tp_create(u.nodename,
399 KEY_PROG, vers, tpconf);
400 endnetconfig(localhandle);
401
402 if (kcp->client == (CLIENT *) NULL) {
403 return ((CLIENT *) NULL);
404 }
405 kcp->uid = geteuid();
406 kcp->pid = getpid();
407 kcp->client->cl_auth = authsys_create("", kcp->uid, 0, 0, NULL);
408 if (kcp->client->cl_auth == NULL) {
409 clnt_destroy(kcp->client);
410 kcp->client = NULL;
411 return ((CLIENT *) NULL);
412 }
413
414 wait_time.tv_sec = TOTAL_TIMEOUT/TOTAL_TRIES;
415 wait_time.tv_usec = 0;
416 (void) clnt_control(kcp->client, CLSET_RETRY_TIMEOUT,
417 (char *)&wait_time);
418 if (clnt_control(kcp->client, CLGET_FD, (char *)&fd))
419 _fcntl(fd, F_SETFD, 1); /* make it "close on exec" */
420
421 return (kcp->client);
422}
423
424/* returns 0 on failure, 1 on success */
425
426static int
427key_call(proc, xdr_arg, arg, xdr_rslt, rslt)
428 u_long proc;
429 xdrproc_t xdr_arg;
430 char *arg;
431 xdrproc_t xdr_rslt;
432 char *rslt;
433{
434 CLIENT *clnt;
435 struct timeval wait_time;
436
437 if (proc == KEY_ENCRYPT_PK && __key_encryptsession_pk_LOCAL) {
438 cryptkeyres *res;
439 res = (*__key_encryptsession_pk_LOCAL)(geteuid(), arg);
440 *(cryptkeyres*)rslt = *res;
441 return (1);
442 } else if (proc == KEY_DECRYPT_PK && __key_decryptsession_pk_LOCAL) {
443 cryptkeyres *res;
444 res = (*__key_decryptsession_pk_LOCAL)(geteuid(), arg);
445 *(cryptkeyres*)rslt = *res;
446 return (1);
447 } else if (proc == KEY_GEN && __key_gendes_LOCAL) {
448 des_block *res;
449 res = (*__key_gendes_LOCAL)(geteuid(), 0);
450 *(des_block*)rslt = *res;
451 return (1);
452 }
453
454 if ((proc == KEY_ENCRYPT_PK) || (proc == KEY_DECRYPT_PK) ||
455 (proc == KEY_NET_GET) || (proc == KEY_NET_PUT) ||
456 (proc == KEY_GET_CONV))
457 clnt = getkeyserv_handle(2); /* talk to version 2 */
458 else
459 clnt = getkeyserv_handle(1); /* talk to version 1 */
460
461 if (clnt == NULL) {
462 return (0);
463 }
464
465 wait_time.tv_sec = TOTAL_TIMEOUT;
466 wait_time.tv_usec = 0;
467
468 if (clnt_call(clnt, proc, xdr_arg, arg, xdr_rslt, rslt,
469 wait_time) == RPC_SUCCESS) {
470 return (1);
471 } else {
472 return (0);
473 }
474}
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