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8af55556 TZ |
1 | /* GnuTLS glue for GNU Emacs. |
2 | Copyright (C) 2010 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software: you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation, either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <config.h> | |
20 | #include <errno.h> | |
21 | #include <setjmp.h> | |
22 | ||
23 | #include "lisp.h" | |
24 | #include "process.h" | |
25 | ||
26 | #ifdef HAVE_GNUTLS | |
27 | #include <gnutls/gnutls.h> | |
28 | ||
29 | Lisp_Object Qgnutls_code; | |
30 | Lisp_Object Qgnutls_anon, Qgnutls_x509pki; | |
31 | Lisp_Object Qgnutls_e_interrupted, Qgnutls_e_again, | |
32 | Qgnutls_e_invalid_session, Qgnutls_e_not_ready_for_handshake; | |
33 | int global_initialized; | |
34 | ||
74f1829d | 35 | static void |
bac5cef8 LMI |
36 | emacs_gnutls_handshake (struct Lisp_Process *proc) |
37 | { | |
38 | gnutls_session_t state = proc->gnutls_state; | |
39 | int ret; | |
40 | ||
41 | if (proc->gnutls_initstage < GNUTLS_STAGE_HANDSHAKE_CANDO) | |
42 | return; | |
43 | ||
44 | if (proc->gnutls_initstage < GNUTLS_STAGE_TRANSPORT_POINTERS_SET) | |
e6059fa2 LMI |
45 | { |
46 | gnutls_transport_set_ptr2 (state, | |
47 | (gnutls_transport_ptr_t) (long) proc->infd, | |
48 | (gnutls_transport_ptr_t) (long) proc->outfd); | |
bac5cef8 | 49 | |
e6059fa2 LMI |
50 | proc->gnutls_initstage = GNUTLS_STAGE_TRANSPORT_POINTERS_SET; |
51 | } | |
bac5cef8 LMI |
52 | |
53 | ret = gnutls_handshake (state); | |
54 | proc->gnutls_initstage = GNUTLS_STAGE_HANDSHAKE_TRIED; | |
55 | ||
56 | if (ret == GNUTLS_E_SUCCESS) | |
e6059fa2 LMI |
57 | { |
58 | /* here we're finally done. */ | |
59 | proc->gnutls_initstage = GNUTLS_STAGE_READY; | |
60 | } | |
bac5cef8 LMI |
61 | } |
62 | ||
8af55556 | 63 | int |
df7fcaff | 64 | emacs_gnutls_write (int fildes, struct Lisp_Process *proc, char *buf, |
8af55556 TZ |
65 | unsigned int nbyte) |
66 | { | |
67 | register int rtnval, bytes_written; | |
df7fcaff LMI |
68 | gnutls_session_t state = proc->gnutls_state; |
69 | ||
70 | if (proc->gnutls_initstage != GNUTLS_STAGE_READY) | |
e6059fa2 | 71 | return -1; |
8af55556 TZ |
72 | |
73 | bytes_written = 0; | |
74 | ||
75 | while (nbyte > 0) | |
76 | { | |
77 | rtnval = gnutls_write (state, buf, nbyte); | |
78 | ||
79 | if (rtnval == -1) | |
80 | { | |
81 | if (errno == EINTR) | |
82 | continue; | |
83 | else | |
84 | return (bytes_written ? bytes_written : -1); | |
85 | } | |
86 | ||
87 | buf += rtnval; | |
88 | nbyte -= rtnval; | |
89 | bytes_written += rtnval; | |
90 | } | |
91 | fsync (STDOUT_FILENO); | |
92 | ||
93 | return (bytes_written); | |
94 | } | |
95 | ||
96 | int | |
df7fcaff | 97 | emacs_gnutls_read (int fildes, struct Lisp_Process *proc, char *buf, |
8af55556 TZ |
98 | unsigned int nbyte) |
99 | { | |
100 | register int rtnval; | |
df7fcaff LMI |
101 | gnutls_session_t state = proc->gnutls_state; |
102 | ||
e6059fa2 LMI |
103 | if (proc->gnutls_initstage != GNUTLS_STAGE_READY) |
104 | { | |
105 | emacs_gnutls_handshake (proc); | |
106 | return -1; | |
107 | } | |
8af55556 | 108 | |
ec9f09be LMI |
109 | rtnval = gnutls_read (state, buf, nbyte); |
110 | if (rtnval >= 0) | |
111 | return rtnval; | |
112 | else | |
df7fcaff | 113 | return 0; |
8af55556 TZ |
114 | } |
115 | ||
116 | /* convert an integer error to a Lisp_Object; it will be either a | |
117 | known symbol like `gnutls_e_interrupted' and `gnutls_e_again' or | |
118 | simply the integer value of the error. GNUTLS_E_SUCCESS is mapped | |
119 | to Qt. */ | |
74f1829d JB |
120 | static Lisp_Object |
121 | gnutls_make_error (int error) | |
8af55556 TZ |
122 | { |
123 | switch (error) | |
e6059fa2 LMI |
124 | { |
125 | case GNUTLS_E_SUCCESS: | |
126 | return Qt; | |
127 | case GNUTLS_E_AGAIN: | |
128 | return Qgnutls_e_again; | |
129 | case GNUTLS_E_INTERRUPTED: | |
130 | return Qgnutls_e_interrupted; | |
131 | case GNUTLS_E_INVALID_SESSION: | |
132 | return Qgnutls_e_invalid_session; | |
133 | } | |
8af55556 TZ |
134 | |
135 | return make_number (error); | |
136 | } | |
137 | ||
138 | DEFUN ("gnutls-get-initstage", Fgnutls_get_initstage, Sgnutls_get_initstage, 1, 1, 0, | |
74f1829d | 139 | doc: /* Return the GnuTLS init stage of process PROC. |
8af55556 | 140 | See also `gnutls-boot'. */) |
74f1829d | 141 | (Lisp_Object proc) |
8af55556 TZ |
142 | { |
143 | CHECK_PROCESS (proc); | |
144 | ||
145 | return make_number (GNUTLS_INITSTAGE (proc)); | |
146 | } | |
147 | ||
148 | DEFUN ("gnutls-errorp", Fgnutls_errorp, Sgnutls_errorp, 1, 1, 0, | |
74f1829d JB |
149 | doc: /* Return t if ERROR indicates a GnuTLS problem. |
150 | ERROR is an integer or a symbol with an integer `gnutls-code' property. | |
151 | usage: (gnutls-errorp ERROR) */) | |
152 | (Lisp_Object err) | |
8af55556 | 153 | { |
74f1829d | 154 | if (EQ (err, Qt)) return Qnil; |
8af55556 TZ |
155 | |
156 | return Qt; | |
157 | } | |
158 | ||
159 | DEFUN ("gnutls-error-fatalp", Fgnutls_error_fatalp, Sgnutls_error_fatalp, 1, 1, 0, | |
74f1829d JB |
160 | doc: /* Check if ERROR is fatal. |
161 | ERROR is an integer or a symbol with an integer `gnutls-code' property. | |
162 | usage: (gnutls-error-fatalp ERROR) */) | |
163 | (Lisp_Object err) | |
8af55556 TZ |
164 | { |
165 | Lisp_Object code; | |
166 | ||
167 | if (EQ (err, Qt)) return Qnil; | |
168 | ||
169 | if (SYMBOLP (err)) | |
8af55556 | 170 | { |
e6059fa2 LMI |
171 | code = Fget (err, Qgnutls_code); |
172 | if (NUMBERP (code)) | |
173 | { | |
174 | err = code; | |
175 | } | |
176 | else | |
177 | { | |
178 | error ("Symbol has no numeric gnutls-code property"); | |
179 | } | |
8af55556 | 180 | } |
8af55556 TZ |
181 | |
182 | if (!NUMBERP (err)) | |
183 | error ("Not an error symbol or code"); | |
184 | ||
185 | if (0 == gnutls_error_is_fatal (XINT (err))) | |
186 | return Qnil; | |
187 | ||
188 | return Qt; | |
189 | } | |
190 | ||
191 | DEFUN ("gnutls-error-string", Fgnutls_error_string, Sgnutls_error_string, 1, 1, 0, | |
74f1829d JB |
192 | doc: /* Return a description of ERROR. |
193 | ERROR is an integer or a symbol with an integer `gnutls-code' property. | |
194 | usage: (gnutls-error-string ERROR) */) | |
195 | (Lisp_Object err) | |
8af55556 TZ |
196 | { |
197 | Lisp_Object code; | |
198 | ||
199 | if (EQ (err, Qt)) return build_string ("Not an error"); | |
200 | ||
201 | if (SYMBOLP (err)) | |
8af55556 | 202 | { |
e6059fa2 LMI |
203 | code = Fget (err, Qgnutls_code); |
204 | if (NUMBERP (code)) | |
205 | { | |
206 | err = code; | |
207 | } | |
208 | else | |
209 | { | |
210 | return build_string ("Symbol has no numeric gnutls-code property"); | |
211 | } | |
8af55556 | 212 | } |
8af55556 TZ |
213 | |
214 | if (!NUMBERP (err)) | |
215 | return build_string ("Not an error symbol or code"); | |
216 | ||
217 | return build_string (gnutls_strerror (XINT (err))); | |
218 | } | |
219 | ||
220 | DEFUN ("gnutls-deinit", Fgnutls_deinit, Sgnutls_deinit, 1, 1, 0, | |
74f1829d | 221 | doc: /* Deallocate GNU TLS resources associated with process PROC. |
8af55556 | 222 | See also `gnutls-init'. */) |
74f1829d | 223 | (Lisp_Object proc) |
8af55556 TZ |
224 | { |
225 | gnutls_session_t state; | |
226 | ||
227 | CHECK_PROCESS (proc); | |
228 | state = XPROCESS (proc)->gnutls_state; | |
229 | ||
230 | if (GNUTLS_INITSTAGE (proc) >= GNUTLS_STAGE_INIT) | |
e6059fa2 | 231 | { |
8af55556 TZ |
232 | gnutls_deinit (state); |
233 | GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_INIT - 1; | |
e6059fa2 | 234 | } |
8af55556 TZ |
235 | |
236 | return Qt; | |
237 | } | |
238 | ||
239 | /* Initializes global GNU TLS state to defaults. | |
240 | Call `gnutls-global-deinit' when GNU TLS usage is no longer needed. | |
241 | Returns zero on success. */ | |
74f1829d JB |
242 | static Lisp_Object |
243 | gnutls_emacs_global_init (void) | |
8af55556 TZ |
244 | { |
245 | int ret = GNUTLS_E_SUCCESS; | |
246 | ||
247 | if (!global_initialized) | |
248 | ret = gnutls_global_init (); | |
249 | ||
250 | global_initialized = 1; | |
251 | ||
252 | return gnutls_make_error (ret); | |
253 | } | |
254 | ||
255 | /* Deinitializes global GNU TLS state. | |
256 | See also `gnutls-global-init'. */ | |
74f1829d JB |
257 | static Lisp_Object |
258 | gnutls_emacs_global_deinit (void) | |
8af55556 TZ |
259 | { |
260 | if (global_initialized) | |
261 | gnutls_global_deinit (); | |
262 | ||
263 | global_initialized = 0; | |
264 | ||
265 | return gnutls_make_error (GNUTLS_E_SUCCESS); | |
266 | } | |
267 | ||
74f1829d JB |
268 | static void |
269 | gnutls_log_function (int level, const char* string) | |
8ed70bf3 | 270 | { |
74f1829d | 271 | message ("gnutls.c: [%d] %s", level, string); |
d2e9d0bb LMI |
272 | } |
273 | ||
8ed70bf3 | 274 | DEFUN ("gnutls-boot", Fgnutls_boot, Sgnutls_boot, 3, 7, 0, |
74f1829d | 275 | doc: /* Initialize client-mode GnuTLS for process PROC. |
8af55556 TZ |
276 | Currently only client mode is supported. Returns a success/failure |
277 | value you can check with `gnutls-errorp'. | |
278 | ||
74f1829d | 279 | PRIORITY-STRING is a string describing the priority. |
8af55556 TZ |
280 | TYPE is either `gnutls-anon' or `gnutls-x509pki'. |
281 | TRUSTFILE is a PEM encoded trust file for `gnutls-x509pki'. | |
282 | KEYFILE is ... for `gnutls-x509pki' (TODO). | |
283 | CALLBACK is ... for `gnutls-x509pki' (TODO). | |
8ed70bf3 LMI |
284 | LOGLEVEL is the debug level requested from GnuTLS, try 4. |
285 | ||
286 | LOGLEVEL will be set for this process AND globally for GnuTLS. So if | |
287 | you set it higher or lower at any point, it affects global debugging. | |
8af55556 TZ |
288 | |
289 | Note that the priority is set on the client. The server does not use | |
290 | the protocols's priority except for disabling protocols that were not | |
291 | specified. | |
292 | ||
74f1829d | 293 | Processes must be initialized with this function before other GnuTLS |
8af55556 TZ |
294 | functions are used. This function allocates resources which can only |
295 | be deallocated by calling `gnutls-deinit' or by calling it again. | |
296 | ||
297 | Each authentication type may need additional information in order to | |
298 | work. For X.509 PKI (`gnutls-x509pki'), you need TRUSTFILE and | |
299 | KEYFILE and optionally CALLBACK. */) | |
74f1829d JB |
300 | (Lisp_Object proc, Lisp_Object priority_string, Lisp_Object type, |
301 | Lisp_Object trustfile, Lisp_Object keyfile, Lisp_Object callback, | |
302 | Lisp_Object loglevel) | |
8af55556 TZ |
303 | { |
304 | int ret = GNUTLS_E_SUCCESS; | |
305 | ||
8ed70bf3 LMI |
306 | int max_log_level = 0; |
307 | ||
8af55556 TZ |
308 | /* TODO: GNUTLS_X509_FMT_DER is also an option. */ |
309 | int file_format = GNUTLS_X509_FMT_PEM; | |
310 | ||
311 | gnutls_session_t state; | |
312 | gnutls_certificate_credentials_t x509_cred; | |
313 | gnutls_anon_client_credentials_t anon_cred; | |
8af55556 TZ |
314 | Lisp_Object global_init; |
315 | ||
316 | CHECK_PROCESS (proc); | |
317 | CHECK_SYMBOL (type); | |
318 | CHECK_STRING (priority_string); | |
319 | ||
320 | state = XPROCESS (proc)->gnutls_state; | |
df7fcaff | 321 | XPROCESS (proc)->gnutls_p = 1; |
8af55556 | 322 | |
8ed70bf3 LMI |
323 | if (NUMBERP (loglevel)) |
324 | { | |
8ed70bf3 LMI |
325 | gnutls_global_set_log_function (gnutls_log_function); |
326 | gnutls_global_set_log_level (XINT (loglevel)); | |
327 | max_log_level = XINT (loglevel); | |
328 | XPROCESS (proc)->gnutls_log_level = max_log_level; | |
329 | } | |
df7fcaff | 330 | |
8af55556 TZ |
331 | /* always initialize globals. */ |
332 | global_init = gnutls_emacs_global_init (); | |
333 | if (! NILP (Fgnutls_errorp (global_init))) | |
334 | return global_init; | |
335 | ||
336 | /* deinit and free resources. */ | |
337 | if (GNUTLS_INITSTAGE (proc) >= GNUTLS_STAGE_CRED_ALLOC) | |
e6059fa2 | 338 | { |
8ed70bf3 LMI |
339 | GNUTLS_LOG (1, max_log_level, "deallocating credentials"); |
340 | ||
8af55556 | 341 | if (EQ (type, Qgnutls_x509pki)) |
e6059fa2 | 342 | { |
8ed70bf3 LMI |
343 | GNUTLS_LOG (2, max_log_level, "deallocating x509 credentials"); |
344 | x509_cred = XPROCESS (proc)->gnutls_x509_cred; | |
8af55556 | 345 | gnutls_certificate_free_credentials (x509_cred); |
e6059fa2 | 346 | } |
8af55556 | 347 | else if (EQ (type, Qgnutls_anon)) |
e6059fa2 | 348 | { |
8ed70bf3 LMI |
349 | GNUTLS_LOG (2, max_log_level, "deallocating anon credentials"); |
350 | anon_cred = XPROCESS (proc)->gnutls_anon_cred; | |
8af55556 | 351 | gnutls_anon_free_client_credentials (anon_cred); |
e6059fa2 | 352 | } |
8af55556 | 353 | else |
e6059fa2 | 354 | { |
8af55556 TZ |
355 | error ("unknown credential type"); |
356 | ret = GNUTLS_EMACS_ERROR_INVALID_TYPE; | |
e6059fa2 | 357 | } |
8af55556 TZ |
358 | |
359 | if (GNUTLS_INITSTAGE (proc) >= GNUTLS_STAGE_INIT) | |
e6059fa2 | 360 | { |
8ed70bf3 | 361 | GNUTLS_LOG (1, max_log_level, "deallocating x509 credentials"); |
8af55556 | 362 | Fgnutls_deinit (proc); |
e6059fa2 LMI |
363 | } |
364 | } | |
8af55556 TZ |
365 | |
366 | GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_EMPTY; | |
367 | ||
8ed70bf3 LMI |
368 | GNUTLS_LOG (1, max_log_level, "allocating credentials"); |
369 | ||
8af55556 | 370 | if (EQ (type, Qgnutls_x509pki)) |
e6059fa2 | 371 | { |
8ed70bf3 LMI |
372 | GNUTLS_LOG (2, max_log_level, "allocating x509 credentials"); |
373 | x509_cred = XPROCESS (proc)->gnutls_x509_cred; | |
8af55556 TZ |
374 | if (gnutls_certificate_allocate_credentials (&x509_cred) < 0) |
375 | memory_full (); | |
e6059fa2 | 376 | } |
8af55556 | 377 | else if (EQ (type, Qgnutls_anon)) |
e6059fa2 | 378 | { |
8ed70bf3 LMI |
379 | GNUTLS_LOG (2, max_log_level, "allocating anon credentials"); |
380 | anon_cred = XPROCESS (proc)->gnutls_anon_cred; | |
8af55556 TZ |
381 | if (gnutls_anon_allocate_client_credentials (&anon_cred) < 0) |
382 | memory_full (); | |
e6059fa2 | 383 | } |
8af55556 | 384 | else |
e6059fa2 | 385 | { |
8af55556 TZ |
386 | error ("unknown credential type"); |
387 | ret = GNUTLS_EMACS_ERROR_INVALID_TYPE; | |
e6059fa2 | 388 | } |
8af55556 TZ |
389 | |
390 | if (ret < GNUTLS_E_SUCCESS) | |
e6059fa2 | 391 | return gnutls_make_error (ret); |
8af55556 TZ |
392 | |
393 | GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_CRED_ALLOC; | |
394 | ||
8af55556 | 395 | if (EQ (type, Qgnutls_x509pki)) |
e6059fa2 | 396 | { |
8af55556 | 397 | if (STRINGP (trustfile)) |
e6059fa2 | 398 | { |
8ed70bf3 | 399 | GNUTLS_LOG (1, max_log_level, "setting the trustfile"); |
8af55556 TZ |
400 | ret = gnutls_certificate_set_x509_trust_file |
401 | (x509_cred, | |
a6f3211f | 402 | SDATA (trustfile), |
8af55556 TZ |
403 | file_format); |
404 | ||
405 | if (ret < GNUTLS_E_SUCCESS) | |
406 | return gnutls_make_error (ret); | |
e6059fa2 | 407 | } |
8af55556 | 408 | |
8af55556 | 409 | if (STRINGP (keyfile)) |
e6059fa2 | 410 | { |
8ed70bf3 | 411 | GNUTLS_LOG (1, max_log_level, "setting the keyfile"); |
8af55556 TZ |
412 | ret = gnutls_certificate_set_x509_crl_file |
413 | (x509_cred, | |
a6f3211f | 414 | SDATA (keyfile), |
8af55556 TZ |
415 | file_format); |
416 | ||
417 | if (ret < GNUTLS_E_SUCCESS) | |
418 | return gnutls_make_error (ret); | |
e6059fa2 LMI |
419 | } |
420 | } | |
8af55556 TZ |
421 | |
422 | GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_FILES; | |
423 | ||
8ed70bf3 LMI |
424 | GNUTLS_LOG (1, max_log_level, "gnutls_init"); |
425 | ||
8af55556 TZ |
426 | ret = gnutls_init (&state, GNUTLS_CLIENT); |
427 | ||
428 | if (ret < GNUTLS_E_SUCCESS) | |
e6059fa2 | 429 | return gnutls_make_error (ret); |
8af55556 TZ |
430 | |
431 | XPROCESS (proc)->gnutls_state = state; | |
432 | ||
433 | GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_INIT; | |
434 | ||
8ed70bf3 LMI |
435 | GNUTLS_LOG (1, max_log_level, "setting the priority string"); |
436 | ||
74f1829d JB |
437 | ret = gnutls_priority_set_direct (state, |
438 | (char*) SDATA (priority_string), | |
439 | NULL); | |
8af55556 TZ |
440 | |
441 | if (ret < GNUTLS_E_SUCCESS) | |
e6059fa2 | 442 | return gnutls_make_error (ret); |
8af55556 TZ |
443 | |
444 | GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_PRIORITY; | |
445 | ||
8af55556 | 446 | if (EQ (type, Qgnutls_x509pki)) |
e6059fa2 | 447 | { |
8af55556 | 448 | ret = gnutls_cred_set (state, GNUTLS_CRD_CERTIFICATE, x509_cred); |
e6059fa2 | 449 | } |
8af55556 | 450 | else if (EQ (type, Qgnutls_anon)) |
e6059fa2 | 451 | { |
8af55556 | 452 | ret = gnutls_cred_set (state, GNUTLS_CRD_ANON, anon_cred); |
e6059fa2 | 453 | } |
8af55556 | 454 | else |
e6059fa2 | 455 | { |
8af55556 TZ |
456 | error ("unknown credential type"); |
457 | ret = GNUTLS_EMACS_ERROR_INVALID_TYPE; | |
e6059fa2 | 458 | } |
8af55556 TZ |
459 | |
460 | if (ret < GNUTLS_E_SUCCESS) | |
e6059fa2 | 461 | return gnutls_make_error (ret); |
8af55556 | 462 | |
8ed70bf3 LMI |
463 | XPROCESS (proc)->gnutls_anon_cred = anon_cred; |
464 | XPROCESS (proc)->gnutls_x509_cred = x509_cred; | |
8af55556 TZ |
465 | XPROCESS (proc)->gnutls_cred_type = type; |
466 | ||
467 | GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_CRED_SET; | |
468 | ||
bac5cef8 LMI |
469 | emacs_gnutls_handshake (XPROCESS (proc)); |
470 | ||
8af55556 TZ |
471 | return gnutls_make_error (GNUTLS_E_SUCCESS); |
472 | } | |
473 | ||
474 | DEFUN ("gnutls-bye", Fgnutls_bye, | |
475 | Sgnutls_bye, 2, 2, 0, | |
74f1829d | 476 | doc: /* Terminate current GnuTLS connection for process PROC. |
8af55556 TZ |
477 | The connection should have been initiated using `gnutls-handshake'. |
478 | ||
479 | If CONT is not nil the TLS connection gets terminated and further | |
74f1829d | 480 | receives and sends will be disallowed. If the return value is zero you |
8af55556 TZ |
481 | may continue using the connection. If CONT is nil, GnuTLS actually |
482 | sends an alert containing a close request and waits for the peer to | |
483 | reply with the same message. In order to reuse the connection you | |
484 | should wait for an EOF from the peer. | |
485 | ||
486 | This function may also return `gnutls-e-again', or | |
487 | `gnutls-e-interrupted'. */) | |
488 | (Lisp_Object proc, Lisp_Object cont) | |
489 | { | |
490 | gnutls_session_t state; | |
491 | int ret; | |
492 | ||
493 | CHECK_PROCESS (proc); | |
494 | ||
495 | state = XPROCESS (proc)->gnutls_state; | |
496 | ||
497 | ret = gnutls_bye (state, | |
498 | NILP (cont) ? GNUTLS_SHUT_RDWR : GNUTLS_SHUT_WR); | |
499 | ||
500 | return gnutls_make_error (ret); | |
501 | } | |
502 | ||
8af55556 TZ |
503 | void |
504 | syms_of_gnutls (void) | |
505 | { | |
506 | global_initialized = 0; | |
507 | ||
508 | Qgnutls_code = intern_c_string ("gnutls-code"); | |
509 | staticpro (&Qgnutls_code); | |
510 | ||
511 | Qgnutls_anon = intern_c_string ("gnutls-anon"); | |
512 | staticpro (&Qgnutls_anon); | |
513 | ||
514 | Qgnutls_x509pki = intern_c_string ("gnutls-x509pki"); | |
515 | staticpro (&Qgnutls_x509pki); | |
516 | ||
517 | Qgnutls_e_interrupted = intern_c_string ("gnutls-e-interrupted"); | |
518 | staticpro (&Qgnutls_e_interrupted); | |
519 | Fput (Qgnutls_e_interrupted, Qgnutls_code, | |
520 | make_number (GNUTLS_E_INTERRUPTED)); | |
521 | ||
522 | Qgnutls_e_again = intern_c_string ("gnutls-e-again"); | |
523 | staticpro (&Qgnutls_e_again); | |
524 | Fput (Qgnutls_e_again, Qgnutls_code, | |
525 | make_number (GNUTLS_E_AGAIN)); | |
526 | ||
527 | Qgnutls_e_invalid_session = intern_c_string ("gnutls-e-invalid-session"); | |
528 | staticpro (&Qgnutls_e_invalid_session); | |
529 | Fput (Qgnutls_e_invalid_session, Qgnutls_code, | |
530 | make_number (GNUTLS_E_INVALID_SESSION)); | |
531 | ||
532 | Qgnutls_e_not_ready_for_handshake = | |
533 | intern_c_string ("gnutls-e-not-ready-for-handshake"); | |
534 | staticpro (&Qgnutls_e_not_ready_for_handshake); | |
535 | Fput (Qgnutls_e_not_ready_for_handshake, Qgnutls_code, | |
536 | make_number (GNUTLS_E_APPLICATION_ERROR_MIN)); | |
537 | ||
538 | defsubr (&Sgnutls_get_initstage); | |
539 | defsubr (&Sgnutls_errorp); | |
540 | defsubr (&Sgnutls_error_fatalp); | |
541 | defsubr (&Sgnutls_error_string); | |
542 | defsubr (&Sgnutls_boot); | |
543 | defsubr (&Sgnutls_deinit); | |
8af55556 TZ |
544 | defsubr (&Sgnutls_bye); |
545 | } | |
546 | #endif |