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ssh-pkcs11-helper.c

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1/* $OpenBSD: ssh-pkcs11-helper.c,v 1.14 2018/01/08 15:18:46 markus Exp $ */-
2/*-
3 * Copyright (c) 2010 Markus Friedl. All rights reserved.-
4 *-
5 * Permission to use, copy, modify, and distribute this software for any-
6 * purpose with or without fee is hereby granted, provided that the above-
7 * copyright notice and this permission notice appear in all copies.-
8 *-
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES-
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF-
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR-
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES-
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN-
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF-
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.-
16 */-
17-
18#include "includes.h"-
19-
20#include <sys/types.h>-
21#ifdef HAVE_SYS_TIME_H-
22# include <sys/time.h>-
23#endif-
24-
25#include "openbsd-compat/sys-queue.h"-
26-
27#include <stdarg.h>-
28#include <string.h>-
29#include <unistd.h>-
30#include <errno.h>-
31-
32#include "xmalloc.h"-
33#include "sshbuf.h"-
34#include "log.h"-
35#include "misc.h"-
36#include "sshkey.h"-
37#include "authfd.h"-
38#include "ssh-pkcs11.h"-
39#include "ssherr.h"-
40-
41#ifdef ENABLE_PKCS11-
42-
43/* borrows code from sftp-server and ssh-agent */-
44-
45struct pkcs11_keyinfo {-
46 struct sshkey *key;-
47 char *providername;-
48 TAILQ_ENTRY(pkcs11_keyinfo) next;-
49};-
50-
51TAILQ_HEAD(, pkcs11_keyinfo) pkcs11_keylist;-
52-
53#define MAX_MSG_LENGTH 10240 /*XXX*/-
54-
55/* input and output queue */-
56struct sshbuf *iqueue;-
57struct sshbuf *oqueue;-
58-
59static void-
60add_key(struct sshkey *k, char *name)-
61{-
62 struct pkcs11_keyinfo *ki;-
63-
64 ki = xcalloc(1, sizeof(*ki));-
65 ki->providername = xstrdup(name);-
66 ki->key = k;-
67 TAILQ_INSERT_TAIL(&pkcs11_keylist, ki, next);-
68}
never executed: end of block
0
69-
70static void-
71del_keys_by_name(char *name)-
72{-
73 struct pkcs11_keyinfo *ki, *nxt;-
74-
75 for (ki = TAILQ_FIRST(&pkcs11_keylist); ki; ki = nxt) {
kiDescription
TRUEnever evaluated
FALSEnever evaluated
0
76 nxt = TAILQ_NEXT(ki, next);-
77 if (!strcmp(ki->providername, name)) {
never executed: __result = (((const unsigned char *) (const char *) ( ki->providername ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( name ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
! __extension_... name )))); })Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
78 TAILQ_REMOVE(&pkcs11_keylist, ki, next);
never executed: (ki)->next.tqe_next->next.tqe_prev = (ki)->next.tqe_prev;
never executed: (&pkcs11_keylist)->tqh_last = (ki)->next.tqe_prev;
((ki)->next.tq...!= ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
79 free(ki->providername);-
80 sshkey_free(ki->key);-
81 free(ki);-
82 }
never executed: end of block
0
83 }
never executed: end of block
0
84}
never executed: end of block
0
85-
86/* lookup matching 'private' key */-
87static struct sshkey *-
88lookup_key(struct sshkey *k)-
89{-
90 struct pkcs11_keyinfo *ki;-
91-
92 TAILQ_FOREACH(ki, &pkcs11_keylist, next) {
(ki) != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
93 debug("check %p %s", ki, ki->providername);-
94 if (sshkey_equal(k, ki->key))
sshkey_equal(k, ki->key)Description
TRUEnever evaluated
FALSEnever evaluated
0
95 return (ki->key);
never executed: return (ki->key);
0
96 }
never executed: end of block
0
97 return (NULL);
never executed: return ( ((void *)0) );
0
98}-
99-
100static void-
101send_msg(struct sshbuf *m)-
102{-
103 int r;-
104-
105 if ((r = sshbuf_put_stringb(oqueue, m)) != 0)
(r = sshbuf_pu...ueue, m)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
106 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
107}
never executed: end of block
0
108-
109static void-
110process_add(void)-
111{-
112 char *name, *pin;-
113 struct sshkey **keys;-
114 int r, i, nkeys;-
115 u_char *blob;-
116 size_t blen;-
117 struct sshbuf *msg;-
118-
119 if ((msg = sshbuf_new()) == NULL)
(msg = sshbuf_...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
120 fatal("%s: sshbuf_new failed", __func__);
never executed: fatal("%s: sshbuf_new failed", __func__);
0
121 if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 ||
(r = sshbuf_ge...d *)0) )) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
122 (r = sshbuf_get_cstring(iqueue, &pin, NULL)) != 0)
(r = sshbuf_ge...d *)0) )) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
123 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
124 if ((nkeys = pkcs11_add_provider(name, pin, &keys)) > 0) {
(nkeys = pkcs1...n, &keys)) > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
125 if ((r = sshbuf_put_u8(msg,
(r = sshbuf_pu...msg, 12)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
126 SSH2_AGENT_IDENTITIES_ANSWER)) != 0 ||
(r = sshbuf_pu...msg, 12)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
127 (r = sshbuf_put_u32(msg, nkeys)) != 0)
(r = sshbuf_pu..., nkeys)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
128 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
129 for (i = 0; i < nkeys; i++) {
i < nkeysDescription
TRUEnever evaluated
FALSEnever evaluated
0
130 if ((r = sshkey_to_blob(keys[i], &blob, &blen)) != 0) {
(r = sshkey_to..., &blen)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
131 debug("%s: sshkey_to_blob: %s",-
132 __func__, ssh_err(r));-
133 continue;
never executed: continue;
0
134 }-
135 if ((r = sshbuf_put_string(msg, blob, blen)) != 0 ||
(r = sshbuf_pu...b, blen)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
136 (r = sshbuf_put_cstring(msg, name)) != 0)
(r = sshbuf_pu...g, name)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
137 fatal("%s: buffer error: %s",
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
138 __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
139 free(blob);-
140 add_key(keys[i], name);-
141 }
never executed: end of block
0
142 free(keys);-
143 } else {
never executed: end of block
0
144 if ((r = sshbuf_put_u8(msg, SSH_AGENT_FAILURE)) != 0)
(r = sshbuf_pu...(msg, 5)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
145 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
146 }
never executed: end of block
0
147 free(pin);-
148 free(name);-
149 send_msg(msg);-
150 sshbuf_free(msg);-
151}
never executed: end of block
0
152-
153static void-
154process_del(void)-
155{-
156 char *name, *pin;-
157 struct sshbuf *msg;-
158 int r;-
159-
160 if ((msg = sshbuf_new()) == NULL)
(msg = sshbuf_...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
161 fatal("%s: sshbuf_new failed", __func__);
never executed: fatal("%s: sshbuf_new failed", __func__);
0
162 if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 ||
(r = sshbuf_ge...d *)0) )) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
163 (r = sshbuf_get_cstring(iqueue, &pin, NULL)) != 0)
(r = sshbuf_ge...d *)0) )) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
164 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
165 del_keys_by_name(name);-
166 if ((r = sshbuf_put_u8(msg, pkcs11_del_provider(name) == 0 ?
(r = sshbuf_pu...? 6 : 5)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
167 SSH_AGENT_SUCCESS : SSH_AGENT_FAILURE)) != 0)
(r = sshbuf_pu...? 6 : 5)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
168 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
169 free(pin);-
170 free(name);-
171 send_msg(msg);-
172 sshbuf_free(msg);-
173}
never executed: end of block
0
174-
175static void-
176process_sign(void)-
177{-
178 u_char *blob, *data, *signature = NULL;-
179 size_t blen, dlen, slen = 0;-
180 int r, ok = -1;-
181 struct sshkey *key, *found;-
182 struct sshbuf *msg;-
183-
184 /* XXX support SHA2 signature flags */-
185 if ((r = sshbuf_get_string(iqueue, &blob, &blen)) != 0 ||
(r = sshbuf_ge..., &blen)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
186 (r = sshbuf_get_string(iqueue, &data, &dlen)) != 0 ||
(r = sshbuf_ge..., &dlen)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
187 (r = sshbuf_get_u32(iqueue, NULL)) != 0)
(r = sshbuf_ge...d *)0) )) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
188 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
189-
190 if ((r = sshkey_from_blob(blob, blen, &key)) != 0)
(r = sshkey_fr...n, &key)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
191 error("%s: sshkey_from_blob: %s", __func__, ssh_err(r));
never executed: error("%s: sshkey_from_blob: %s", __func__, ssh_err(r));
0
192 else {-
193 if ((found = lookup_key(key)) != NULL) {
(found = looku...!= ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
194#ifdef WITH_OPENSSL-
195 int ret;-
196-
197 slen = RSA_size(key->rsa);-
198 signature = xmalloc(slen);-
199 if ((ret = RSA_private_encrypt(dlen, data, signature,
(ret = RSA_pri...sa, 1 )) != -1Description
TRUEnever evaluated
FALSEnever evaluated
0
200 found->rsa, RSA_PKCS1_PADDING)) != -1) {
(ret = RSA_pri...sa, 1 )) != -1Description
TRUEnever evaluated
FALSEnever evaluated
0
201 slen = ret;-
202 ok = 0;-
203 }
never executed: end of block
0
204#endif /* WITH_OPENSSL */-
205 }
never executed: end of block
0
206 sshkey_free(key);-
207 }
never executed: end of block
0
208 if ((msg = sshbuf_new()) == NULL)
(msg = sshbuf_...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
209 fatal("%s: sshbuf_new failed", __func__);
never executed: fatal("%s: sshbuf_new failed", __func__);
0
210 if (ok == 0) {
ok == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
211 if ((r = sshbuf_put_u8(msg, SSH2_AGENT_SIGN_RESPONSE)) != 0 ||
(r = sshbuf_pu...msg, 14)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
212 (r = sshbuf_put_string(msg, signature, slen)) != 0)
(r = sshbuf_pu...e, slen)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
213 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
214 } else {
never executed: end of block
0
215 if ((r = sshbuf_put_u8(msg, SSH2_AGENT_FAILURE)) != 0)
(r = sshbuf_pu...msg, 30)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
216 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
217 }
never executed: end of block
0
218 free(data);-
219 free(blob);-
220 free(signature);-
221 send_msg(msg);-
222 sshbuf_free(msg);-
223}
never executed: end of block
0
224-
225static void-
226process(void)-
227{-
228 u_int msg_len;-
229 u_int buf_len;-
230 u_int consumed;-
231 u_char type;-
232 const u_char *cp;-
233 int r;-
234-
235 buf_len = sshbuf_len(iqueue);-
236 if (buf_len < 5)
buf_len < 5Description
TRUEnever evaluated
FALSEnever evaluated
0
237 return; /* Incomplete message. */
never executed: return;
0
238 cp = sshbuf_ptr(iqueue);-
239 msg_len = get_u32(cp);-
240 if (msg_len > MAX_MSG_LENGTH) {
msg_len > 10240Description
TRUEnever evaluated
FALSEnever evaluated
0
241 error("bad message len %d", msg_len);-
242 cleanup_exit(11);-
243 }
never executed: end of block
0
244 if (buf_len < msg_len + 4)
buf_len < msg_len + 4Description
TRUEnever evaluated
FALSEnever evaluated
0
245 return;
never executed: return;
0
246 if ((r = sshbuf_consume(iqueue, 4)) != 0 ||
(r = sshbuf_co...ueue, 4)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
247 (r = sshbuf_get_u8(iqueue, &type)) != 0)
(r = sshbuf_ge..., &type)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
248 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
249 buf_len -= 4;-
250 switch (type) {-
251 case SSH_AGENTC_ADD_SMARTCARD_KEY:
never executed: case 20:
0
252 debug("process_add");-
253 process_add();-
254 break;
never executed: break;
0
255 case SSH_AGENTC_REMOVE_SMARTCARD_KEY:
never executed: case 21:
0
256 debug("process_del");-
257 process_del();-
258 break;
never executed: break;
0
259 case SSH2_AGENTC_SIGN_REQUEST:
never executed: case 13:
0
260 debug("process_sign");-
261 process_sign();-
262 break;
never executed: break;
0
263 default:
never executed: default:
0
264 error("Unknown message %d", type);-
265 break;
never executed: break;
0
266 }-
267 /* discard the remaining bytes from the current packet */-
268 if (buf_len < sshbuf_len(iqueue)) {
buf_len < sshbuf_len(iqueue)Description
TRUEnever evaluated
FALSEnever evaluated
0
269 error("iqueue grew unexpectedly");-
270 cleanup_exit(255);-
271 }
never executed: end of block
0
272 consumed = buf_len - sshbuf_len(iqueue);-
273 if (msg_len < consumed) {
msg_len < consumedDescription
TRUEnever evaluated
FALSEnever evaluated
0
274 error("msg_len %d < consumed %d", msg_len, consumed);-
275 cleanup_exit(255);-
276 }
never executed: end of block
0
277 if (msg_len > consumed) {
msg_len > consumedDescription
TRUEnever evaluated
FALSEnever evaluated
0
278 if ((r = sshbuf_consume(iqueue, msg_len - consumed)) != 0)
(r = sshbuf_co...onsumed)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
279 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
280 }
never executed: end of block
0
281}
never executed: end of block
0
282-
283void-
284cleanup_exit(int i)-
285{-
286 /* XXX */-
287 _exit(i);-
288}
never executed: end of block
0
289-
290int-
291main(int argc, char **argv)-
292{-
293 fd_set *rset, *wset;-
294 int r, in, out, max, log_stderr = 0;-
295 ssize_t len, olen, set_size;-
296 SyslogFacility log_facility = SYSLOG_FACILITY_AUTH;-
297 LogLevel log_level = SYSLOG_LEVEL_ERROR;-
298 char buf[4*4096];-
299-
300 extern char *__progname;-
301-
302 ssh_malloc_init(); /* must be called before any mallocs */-
303 TAILQ_INIT(&pkcs11_keylist);-
304 pkcs11_init(0);-
305-
306 seed_rng();-
307 __progname = ssh_get_progname(argv[0]);-
308-
309 log_init(__progname, log_level, log_facility, log_stderr);-
310-
311 in = STDIN_FILENO;-
312 out = STDOUT_FILENO;-
313-
314 max = 0;-
315 if (in > max)
in > maxDescription
TRUEnever evaluated
FALSEnever evaluated
0
316 max = in;
never executed: max = in;
0
317 if (out > max)
out > maxDescription
TRUEnever evaluated
FALSEnever evaluated
0
318 max = out;
never executed: max = out;
0
319-
320 if ((iqueue = sshbuf_new()) == NULL)
(iqueue = sshb...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
321 fatal("%s: sshbuf_new failed", __func__);
never executed: fatal("%s: sshbuf_new failed", __func__);
0
322 if ((oqueue = sshbuf_new()) == NULL)
(oqueue = sshb...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
323 fatal("%s: sshbuf_new failed", __func__);
never executed: fatal("%s: sshbuf_new failed", __func__);
0
324-
325 set_size = howmany(max + 1, NFDBITS) * sizeof(fd_mask);-
326 rset = xmalloc(set_size);-
327 wset = xmalloc(set_size);-
328-
329 for (;;) {-
330 memset(rset, 0, set_size);-
331 memset(wset, 0, set_size);-
332-
333 /*-
334 * Ensure that we can read a full buffer and handle-
335 * the worst-case length packet it can generate,-
336 * otherwise apply backpressure by stopping reads.-
337 */-
338 if ((r = sshbuf_check_reserve(iqueue, sizeof(buf))) == 0 &&
(r = sshbuf_ch...of(buf))) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
339 (r = sshbuf_check_reserve(oqueue, MAX_MSG_LENGTH)) == 0)
(r = sshbuf_ch..., 10240)) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
340 FD_SET(in, rset);
never executed: kludge_FD_SET(in, rset);
0
341 else if (r != SSH_ERR_NO_BUFFER_SPACE)
r != -9Description
TRUEnever evaluated
FALSEnever evaluated
0
342 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
343-
344 olen = sshbuf_len(oqueue);-
345 if (olen > 0)
olen > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
346 FD_SET(out, wset);
never executed: kludge_FD_SET(out, wset);
0
347-
348 if (select(max+1, rset, wset, NULL, NULL) < 0) {
select(max+1, ...oid *)0) ) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
349 if (errno == EINTR)
(*__errno_location ()) == 4Description
TRUEnever evaluated
FALSEnever evaluated
0
350 continue;
never executed: continue;
0
351 error("select: %s", strerror(errno));-
352 cleanup_exit(2);-
353 }
never executed: end of block
0
354-
355 /* copy stdin to iqueue */-
356 if (FD_ISSET(in, rset)) {
kludge_FD_ISSET(in, rset)Description
TRUEnever evaluated
FALSEnever evaluated
0
357 len = read(in, buf, sizeof buf);-
358 if (len == 0) {
len == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
359 debug("read eof");-
360 cleanup_exit(0);-
361 } else if (len < 0) {
never executed: end of block
len < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
362 error("read: %s", strerror(errno));-
363 cleanup_exit(1);-
364 } else if ((r = sshbuf_put(iqueue, buf, len)) != 0) {
never executed: end of block
(r = sshbuf_pu...uf, len)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
365 fatal("%s: buffer error: %s",-
366 __func__, ssh_err(r));-
367 }
never executed: end of block
0
368 }
never executed: end of block
0
369 /* send oqueue to stdout */-
370 if (FD_ISSET(out, wset)) {
kludge_FD_ISSET(out, wset)Description
TRUEnever evaluated
FALSEnever evaluated
0
371 len = write(out, sshbuf_ptr(oqueue), olen);-
372 if (len < 0) {
len < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
373 error("write: %s", strerror(errno));-
374 cleanup_exit(1);-
375 } else if ((r = sshbuf_consume(oqueue, len)) != 0) {
never executed: end of block
(r = sshbuf_co...ue, len)) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
376 fatal("%s: buffer error: %s",-
377 __func__, ssh_err(r));-
378 }
never executed: end of block
0
379 }
never executed: end of block
0
380-
381 /*-
382 * Process requests from client if we can fit the results-
383 * into the output buffer, otherwise stop processing input-
384 * and let the output queue drain.-
385 */-
386 if ((r = sshbuf_check_reserve(oqueue, MAX_MSG_LENGTH)) == 0)
(r = sshbuf_ch..., 10240)) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
387 process();
never executed: process();
0
388 else if (r != SSH_ERR_NO_BUFFER_SPACE)
r != -9Description
TRUEnever evaluated
FALSEnever evaluated
0
389 fatal("%s: buffer error: %s", __func__, ssh_err(r));
never executed: fatal("%s: buffer error: %s", __func__, ssh_err(r));
0
390 }
never executed: end of block
0
391}
never executed: end of block
0
392#else /* ENABLE_PKCS11 */-
393int-
394main(int argc, char **argv)-
395{-
396 extern char *__progname;-
397-
398 __progname = ssh_get_progname(argv[0]);-
399 log_init(__progname, SYSLOG_LEVEL_ERROR, SYSLOG_FACILITY_AUTH, 0);-
400 fatal("PKCS#11 support disabled at compile time");-
401}-
402#endif /* ENABLE_PKCS11 */-
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