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420a0d19 CE |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
2ea97746 | 5 | /* Copyright (c) University of Cambridge 1995 - 2018 */ |
420a0d19 CE |
6 | /* See the file NOTICE for conditions of use and distribution. */ |
7 | ||
8 | /* This code was originally contributed by Matthew Byng-Maddick */ | |
9 | ||
10 | /* Copyright (c) A L Digital 2004 */ | |
11 | ||
12 | /* A generic (mechanism independent) Cyrus SASL authenticator. */ | |
13 | ||
14 | ||
15 | #include "../exim.h" | |
16 | ||
17 | ||
18 | /* We can't just compile this code and allow the library mechanism to omit the | |
19 | functions if they are not wanted, because we need to have the Cyrus SASL header | |
20 | available for compiling. Therefore, compile these functions only if | |
21 | AUTH_CYRUS_SASL is defined. However, some compilers don't like compiling empty | |
22 | modules, so keep them happy with a dummy when skipping the rest. Make it | |
23 | reference itself to stop picky compilers complaining that it is unused, and put | |
24 | in a dummy argument to stop even pickier compilers complaining about infinite | |
25 | loops. */ | |
26 | ||
27 | #ifndef AUTH_CYRUS_SASL | |
28 | static void dummy(int x); | |
29 | static void dummy2(int x) { dummy(x-1); } | |
30 | static void dummy(int x) { dummy2(x-1); } | |
31 | #else | |
32 | ||
33 | ||
34 | #include <sasl/sasl.h> | |
35 | #include "cyrus_sasl.h" | |
36 | ||
37 | /* Options specific to the cyrus_sasl authentication mechanism. */ | |
38 | ||
39 | optionlist auth_cyrus_sasl_options[] = { | |
40 | { "server_hostname", opt_stringptr, | |
41 | (void *)(offsetof(auth_cyrus_sasl_options_block, server_hostname)) }, | |
42 | { "server_mech", opt_stringptr, | |
43 | (void *)(offsetof(auth_cyrus_sasl_options_block, server_mech)) }, | |
44 | { "server_realm", opt_stringptr, | |
45 | (void *)(offsetof(auth_cyrus_sasl_options_block, server_realm)) }, | |
46 | { "server_service", opt_stringptr, | |
47 | (void *)(offsetof(auth_cyrus_sasl_options_block, server_service)) } | |
48 | }; | |
49 | ||
50 | /* Size of the options list. An extern variable has to be used so that its | |
51 | address can appear in the tables drtables.c. */ | |
52 | ||
53 | int auth_cyrus_sasl_options_count = | |
54 | sizeof(auth_cyrus_sasl_options)/sizeof(optionlist); | |
55 | ||
56 | /* Default private options block for the cyrus_sasl authentication method. */ | |
57 | ||
58 | auth_cyrus_sasl_options_block auth_cyrus_sasl_option_defaults = { | |
59 | US"smtp", /* server_service */ | |
60 | US"$primary_hostname", /* server_hostname */ | |
61 | NULL, /* server_realm */ | |
62 | NULL /* server_mech */ | |
63 | }; | |
64 | ||
65 | ||
2ea97746 CE |
66 | #ifdef MACRO_PREDEF |
67 | ||
68 | /* Dummy values */ | |
69 | void auth_cyrus_sasl_init(auth_instance *ablock) {} | |
70 | int auth_cyrus_sasl_server(auth_instance *ablock, uschar *data) {return 0;} | |
71 | int auth_cyrus_sasl_client(auth_instance *ablock, void * sx, | |
72 | int timeout, uschar *buffer, int buffsize) {return 0;} | |
73 | void auth_cyrus_sasl_version_report(FILE *f) {} | |
74 | ||
75 | #else /*!MACRO_PREDEF*/ | |
76 | ||
77 | ||
78 | ||
79 | ||
420a0d19 CE |
80 | /************************************************* |
81 | * Initialization entry point * | |
82 | *************************************************/ | |
83 | ||
84 | /* Called for each instance, after its options have been read, to | |
85 | enable consistency checks to be done, or anything else that needs | |
86 | to be set up. */ | |
87 | ||
88 | ||
89 | /* Auxiliary function, passed in data to sasl_server_init(). */ | |
90 | ||
91 | static int | |
92 | mysasl_config(void *context, | |
93 | const char *plugin_name, | |
94 | const char *option, | |
95 | const char **result, | |
96 | unsigned int *len) | |
97 | { | |
98 | if (context && !strcmp(option, "mech_list")) | |
99 | { | |
100 | *result = context; | |
101 | if (len != NULL) *len = strlen(*result); | |
102 | return SASL_OK; | |
103 | } | |
104 | return SASL_FAIL; | |
105 | } | |
106 | ||
107 | /* Here's the real function */ | |
108 | ||
109 | void | |
110 | auth_cyrus_sasl_init(auth_instance *ablock) | |
111 | { | |
112 | auth_cyrus_sasl_options_block *ob = | |
113 | (auth_cyrus_sasl_options_block *)(ablock->options_block); | |
2ea97746 | 114 | const uschar *list, *listptr, *buffer; |
420a0d19 CE |
115 | int rc, i; |
116 | unsigned int len; | |
117 | uschar *rs_point, *expanded_hostname; | |
118 | char *realm_expanded; | |
119 | ||
120 | sasl_conn_t *conn; | |
2ea97746 | 121 | sasl_callback_t cbs[] = { |
420a0d19 CE |
122 | {SASL_CB_GETOPT, NULL, NULL }, |
123 | {SASL_CB_LIST_END, NULL, NULL}}; | |
124 | ||
125 | /* default the mechanism to our "public name" */ | |
2ea97746 CE |
126 | if (ob->server_mech == NULL) |
127 | ob->server_mech = string_copy(ablock->public_name); | |
420a0d19 CE |
128 | |
129 | expanded_hostname = expand_string(ob->server_hostname); | |
130 | if (expanded_hostname == NULL) | |
131 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_FOR, "%s authenticator: " | |
132 | "couldn't expand server_hostname [%s]: %s", | |
133 | ablock->name, ob->server_hostname, expand_string_message); | |
134 | ||
2ea97746 | 135 | realm_expanded = NULL; |
420a0d19 CE |
136 | if (ob->server_realm != NULL) { |
137 | realm_expanded = CS expand_string(ob->server_realm); | |
138 | if (realm_expanded == NULL) | |
139 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_FOR, "%s authenticator: " | |
140 | "couldn't expand server_realm [%s]: %s", | |
141 | ablock->name, ob->server_realm, expand_string_message); | |
142 | } | |
143 | ||
144 | /* we're going to initialise the library to check that there is an | |
145 | * authenticator of type whatever mechanism we're using | |
146 | */ | |
147 | ||
148 | cbs[0].proc = (int(*)(void)) &mysasl_config; | |
149 | cbs[0].context = ob->server_mech; | |
150 | ||
2ea97746 | 151 | if ((rc = sasl_server_init(cbs, "exim")) != SASL_OK ) |
420a0d19 CE |
152 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_FOR, "%s authenticator: " |
153 | "couldn't initialise Cyrus SASL library.", ablock->name); | |
154 | ||
2ea97746 CE |
155 | if ((rc = sasl_server_new(CS ob->server_service, CS expanded_hostname, |
156 | realm_expanded, NULL, NULL, NULL, 0, &conn)) != SASL_OK ) | |
420a0d19 CE |
157 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_FOR, "%s authenticator: " |
158 | "couldn't initialise Cyrus SASL server connection.", ablock->name); | |
159 | ||
2ea97746 | 160 | if ((rc = sasl_listmech(conn, NULL, "", ":", "", (const char **)&list, &len, &i)) != SASL_OK ) |
420a0d19 CE |
161 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_FOR, "%s authenticator: " |
162 | "couldn't get Cyrus SASL mechanism list.", ablock->name); | |
163 | ||
2ea97746 CE |
164 | i = ':'; |
165 | listptr = list; | |
420a0d19 | 166 | |
2ea97746 CE |
167 | HDEBUG(D_auth) |
168 | { | |
420a0d19 CE |
169 | debug_printf("Initialised Cyrus SASL service=\"%s\" fqdn=\"%s\" realm=\"%s\"\n", |
170 | ob->server_service, expanded_hostname, realm_expanded); | |
171 | debug_printf("Cyrus SASL knows mechanisms: %s\n", list); | |
2ea97746 | 172 | } |
420a0d19 CE |
173 | |
174 | /* the store_get / store_reset mechanism is hierarchical | |
175 | * the hierarchy is stored for us behind our back. This point | |
176 | * creates a hierarchy point for this function. | |
177 | */ | |
2ea97746 | 178 | rs_point = store_get(0); |
420a0d19 CE |
179 | |
180 | /* loop until either we get to the end of the list, or we match the | |
181 | * public name of this authenticator | |
182 | */ | |
2ea97746 | 183 | while ( ( buffer = string_nextinlist(&listptr, &i, NULL, 0) ) && |
420a0d19 CE |
184 | strcmpic(buffer,ob->server_mech) ); |
185 | ||
2ea97746 | 186 | if (!buffer) |
420a0d19 CE |
187 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_FOR, "%s authenticator: " |
188 | "Cyrus SASL doesn't know about mechanism %s.", ablock->name, ob->server_mech); | |
189 | ||
190 | store_reset(rs_point); | |
191 | ||
192 | HDEBUG(D_auth) debug_printf("Cyrus SASL driver %s: %s initialised\n", ablock->name, ablock->public_name); | |
193 | ||
194 | /* make sure that if we get here then we're allowed to advertise. */ | |
195 | ablock->server = TRUE; | |
196 | ||
197 | sasl_dispose(&conn); | |
198 | sasl_done(); | |
199 | } | |
200 | ||
201 | /************************************************* | |
202 | * Server entry point * | |
203 | *************************************************/ | |
204 | ||
205 | /* For interface, see auths/README */ | |
206 | ||
207 | /* note, we don't care too much about memory allocation in this, because this is entirely | |
208 | * within a shortlived child | |
209 | */ | |
210 | ||
211 | int | |
212 | auth_cyrus_sasl_server(auth_instance *ablock, uschar *data) | |
213 | { | |
214 | auth_cyrus_sasl_options_block *ob = | |
215 | (auth_cyrus_sasl_options_block *)(ablock->options_block); | |
216 | uschar *output, *out2, *input, *clear, *hname; | |
217 | uschar *debug = NULL; /* Stops compiler complaining */ | |
2ea97746 | 218 | sasl_callback_t cbs[] = {{SASL_CB_LIST_END, NULL, NULL}}; |
420a0d19 | 219 | sasl_conn_t *conn; |
2ea97746 CE |
220 | char * realm_expanded = NULL; |
221 | int rc, i, firsttime = 1, clen, *negotiated_ssf_ptr = NULL, negotiated_ssf; | |
420a0d19 CE |
222 | unsigned int inlen, outlen; |
223 | ||
2ea97746 CE |
224 | input = data; |
225 | inlen = Ustrlen(data); | |
420a0d19 | 226 | |
2ea97746 | 227 | HDEBUG(D_auth) debug = string_copy(data); |
420a0d19 | 228 | |
2ea97746 | 229 | hname = expand_string(ob->server_hostname); |
420a0d19 | 230 | if (hname && ob->server_realm) |
2ea97746 CE |
231 | realm_expanded = CS expand_string(ob->server_realm); |
232 | if (!hname || !realm_expanded && ob->server_realm) | |
420a0d19 CE |
233 | { |
234 | auth_defer_msg = expand_string_message; | |
235 | return DEFER; | |
236 | } | |
237 | ||
2ea97746 | 238 | if (inlen) |
420a0d19 | 239 | { |
2ea97746 | 240 | if ((clen = b64decode(input, &clear)) < 0) |
420a0d19 | 241 | return BAD64; |
2ea97746 CE |
242 | input = clear; |
243 | inlen = clen; | |
420a0d19 CE |
244 | } |
245 | ||
2ea97746 | 246 | if ((rc = sasl_server_init(cbs, "exim")) != SASL_OK) |
420a0d19 CE |
247 | { |
248 | auth_defer_msg = US"couldn't initialise Cyrus SASL library"; | |
249 | return DEFER; | |
250 | } | |
251 | ||
2ea97746 | 252 | rc = sasl_server_new(CS ob->server_service, CS hname, realm_expanded, NULL, |
420a0d19 CE |
253 | NULL, NULL, 0, &conn); |
254 | ||
255 | HDEBUG(D_auth) | |
256 | debug_printf("Initialised Cyrus SASL server connection; service=\"%s\" fqdn=\"%s\" realm=\"%s\"\n", | |
257 | ob->server_service, hname, realm_expanded); | |
258 | ||
2ea97746 | 259 | if (rc != SASL_OK ) |
420a0d19 CE |
260 | { |
261 | auth_defer_msg = US"couldn't initialise Cyrus SASL connection"; | |
262 | sasl_done(); | |
263 | return DEFER; | |
264 | } | |
265 | ||
266 | if (tls_in.cipher) | |
267 | { | |
2ea97746 | 268 | if ((rc = sasl_setprop(conn, SASL_SSF_EXTERNAL, (sasl_ssf_t *) &tls_in.bits)) != SASL_OK) |
420a0d19 CE |
269 | { |
270 | HDEBUG(D_auth) debug_printf("Cyrus SASL EXTERNAL SSF set %d failed: %s\n", | |
271 | tls_in.bits, sasl_errstring(rc, NULL, NULL)); | |
272 | auth_defer_msg = US"couldn't set Cyrus SASL EXTERNAL SSF"; | |
273 | sasl_done(); | |
274 | return DEFER; | |
275 | } | |
276 | else | |
277 | HDEBUG(D_auth) debug_printf("Cyrus SASL set EXTERNAL SSF to %d\n", tls_in.bits); | |
278 | } | |
279 | else | |
280 | HDEBUG(D_auth) debug_printf("Cyrus SASL: no TLS, no EXTERNAL SSF set\n"); | |
281 | ||
282 | /* So sasl_setprop() documents non-shorted IPv6 addresses which is incredibly | |
283 | annoying; looking at cyrus-imapd-2.3.x source, the IP address is constructed | |
284 | with their iptostring() function, which just wraps | |
285 | getnameinfo(..., NI_NUMERICHOST|NI_NUMERICSERV), which is equivalent to the | |
286 | inet_ntop which we wrap in our host_ntoa() function. | |
287 | ||
288 | So the docs are too strict and we shouldn't worry about :: contractions. */ | |
289 | ||
290 | /* Set properties for remote and local host-ip;port */ | |
2ea97746 | 291 | for (i = 0; i < 2; ++i) |
420a0d19 CE |
292 | { |
293 | struct sockaddr_storage ss; | |
294 | int (*query)(int, struct sockaddr *, socklen_t *); | |
295 | int propnum, port; | |
296 | const uschar *label; | |
297 | uschar *address, *address_port; | |
298 | const char *s_err; | |
299 | socklen_t sslen; | |
300 | ||
301 | if (i) | |
302 | { | |
303 | query = &getpeername; | |
304 | propnum = SASL_IPREMOTEPORT; | |
305 | label = CUS"peer"; | |
306 | } | |
307 | else | |
308 | { | |
309 | query = &getsockname; | |
310 | propnum = SASL_IPLOCALPORT; | |
311 | label = CUS"local"; | |
312 | } | |
313 | ||
314 | sslen = sizeof(ss); | |
2ea97746 | 315 | if ((rc = query(fileno(smtp_in), (struct sockaddr *) &ss, &sslen)) < 0) |
420a0d19 CE |
316 | { |
317 | HDEBUG(D_auth) | |
318 | debug_printf("Failed to get %s address information: %s\n", | |
319 | label, strerror(errno)); | |
320 | break; | |
321 | } | |
322 | ||
323 | address = host_ntoa(-1, &ss, NULL, &port); | |
324 | address_port = string_sprintf("%s;%d", address, port); | |
325 | ||
2ea97746 | 326 | if ((rc = sasl_setprop(conn, propnum, address_port)) != SASL_OK) |
420a0d19 CE |
327 | { |
328 | s_err = sasl_errdetail(conn); | |
329 | HDEBUG(D_auth) | |
330 | debug_printf("Failed to set %s SASL property: [%d] %s\n", | |
331 | label, rc, s_err ? s_err : "<unknown reason>"); | |
332 | break; | |
333 | } | |
334 | HDEBUG(D_auth) debug_printf("Cyrus SASL set %s hostport to: %s\n", | |
335 | label, address_port); | |
336 | } | |
337 | ||
2ea97746 | 338 | for (rc = SASL_CONTINUE; rc == SASL_CONTINUE; ) |
420a0d19 | 339 | { |
2ea97746 | 340 | if (firsttime) |
420a0d19 | 341 | { |
2ea97746 | 342 | firsttime = 0; |
420a0d19 | 343 | HDEBUG(D_auth) debug_printf("Calling sasl_server_start(%s,\"%s\")\n", ob->server_mech, debug); |
2ea97746 | 344 | rc = sasl_server_start(conn, CS ob->server_mech, inlen?CS input:NULL, inlen, |
420a0d19 CE |
345 | (const char **)(&output), &outlen); |
346 | } | |
347 | else | |
348 | { | |
349 | /* make sure that we have a null-terminated string */ | |
2ea97746 CE |
350 | out2 = string_copyn(output, outlen); |
351 | ||
352 | if ((rc = auth_get_data(&input, out2, outlen)) != OK) | |
420a0d19 CE |
353 | { |
354 | /* we couldn't get the data, so free up the library before | |
355 | * returning whatever error we get */ | |
356 | sasl_dispose(&conn); | |
357 | sasl_done(); | |
358 | return rc; | |
359 | } | |
2ea97746 | 360 | inlen = Ustrlen(input); |
420a0d19 | 361 | |
2ea97746 CE |
362 | HDEBUG(D_auth) debug = string_copy(input); |
363 | if (inlen) | |
420a0d19 | 364 | { |
2ea97746 | 365 | if ((clen = b64decode(input, &clear)) < 0) |
420a0d19 | 366 | { |
2ea97746 CE |
367 | sasl_dispose(&conn); |
368 | sasl_done(); | |
420a0d19 CE |
369 | return BAD64; |
370 | } | |
2ea97746 CE |
371 | input = clear; |
372 | inlen = clen; | |
420a0d19 CE |
373 | } |
374 | ||
375 | HDEBUG(D_auth) debug_printf("Calling sasl_server_step(\"%s\")\n", debug); | |
2ea97746 | 376 | rc = sasl_server_step(conn, CS input, inlen, (const char **)(&output), &outlen); |
420a0d19 | 377 | } |
2ea97746 CE |
378 | |
379 | if (rc == SASL_BADPROT) | |
420a0d19 CE |
380 | { |
381 | sasl_dispose(&conn); | |
382 | sasl_done(); | |
383 | return UNEXPECTED; | |
384 | } | |
2ea97746 CE |
385 | if (rc == SASL_CONTINUE) |
386 | continue; | |
387 | ||
388 | /* Get the username and copy it into $auth1 and $1. The former is now the | |
389 | preferred variable; the latter is the original variable. */ | |
390 | ||
391 | if ((sasl_getprop(conn, SASL_USERNAME, (const void **)(&out2))) != SASL_OK) | |
420a0d19 | 392 | { |
420a0d19 | 393 | HDEBUG(D_auth) |
2ea97746 CE |
394 | debug_printf("Cyrus SASL library will not tell us the username: %s\n", |
395 | sasl_errstring(rc, NULL, NULL)); | |
420a0d19 | 396 | log_write(0, LOG_REJECT, "%s authenticator (%s):\n " |
2ea97746 | 397 | "Cyrus SASL username fetch problem: %s", ablock->name, ob->server_mech, |
420a0d19 CE |
398 | sasl_errstring(rc, NULL, NULL)); |
399 | sasl_dispose(&conn); | |
400 | sasl_done(); | |
401 | return FAIL; | |
402 | } | |
2ea97746 CE |
403 | auth_vars[0] = expand_nstring[1] = string_copy(out2); |
404 | expand_nlength[1] = Ustrlen(out2); | |
405 | expand_nmax = 1; | |
406 | ||
407 | switch (rc) | |
420a0d19 | 408 | { |
2ea97746 CE |
409 | case SASL_FAIL: case SASL_BUFOVER: case SASL_BADMAC: case SASL_BADAUTH: |
410 | case SASL_NOAUTHZ: case SASL_ENCRYPT: case SASL_EXPIRED: | |
411 | case SASL_DISABLED: case SASL_NOUSER: | |
412 | /* these are considered permanent failure codes */ | |
420a0d19 | 413 | HDEBUG(D_auth) |
2ea97746 | 414 | debug_printf("Cyrus SASL permanent failure %d (%s)\n", rc, sasl_errstring(rc, NULL, NULL)); |
420a0d19 | 415 | log_write(0, LOG_REJECT, "%s authenticator (%s):\n " |
2ea97746 CE |
416 | "Cyrus SASL permanent failure: %s", ablock->name, ob->server_mech, |
417 | sasl_errstring(rc, NULL, NULL)); | |
420a0d19 CE |
418 | sasl_dispose(&conn); |
419 | sasl_done(); | |
420 | return FAIL; | |
420a0d19 | 421 | |
2ea97746 CE |
422 | case SASL_NOMECH: |
423 | /* this is a temporary failure, because the mechanism is not | |
424 | * available for this user. If it wasn't available at all, we | |
425 | * shouldn't have got here in the first place... | |
426 | */ | |
420a0d19 | 427 | HDEBUG(D_auth) |
2ea97746 CE |
428 | debug_printf("Cyrus SASL temporary failure %d (%s)\n", rc, sasl_errstring(rc, NULL, NULL)); |
429 | auth_defer_msg = | |
430 | string_sprintf("Cyrus SASL: mechanism %s not available", ob->server_mech); | |
420a0d19 CE |
431 | sasl_dispose(&conn); |
432 | sasl_done(); | |
2ea97746 CE |
433 | return DEFER; |
434 | ||
435 | case SASL_OK: | |
420a0d19 | 436 | HDEBUG(D_auth) |
2ea97746 CE |
437 | debug_printf("Cyrus SASL %s authentication succeeded for %s\n", |
438 | ob->server_mech, auth_vars[0]); | |
439 | ||
440 | if ((rc = sasl_getprop(conn, SASL_SSF, (const void **)(&negotiated_ssf_ptr)))!= SASL_OK) | |
441 | { | |
442 | HDEBUG(D_auth) | |
443 | debug_printf("Cyrus SASL library will not tell us the SSF: %s\n", | |
444 | sasl_errstring(rc, NULL, NULL)); | |
445 | log_write(0, LOG_REJECT, "%s authenticator (%s):\n " | |
446 | "Cyrus SASL SSF value not available: %s", ablock->name, ob->server_mech, | |
447 | sasl_errstring(rc, NULL, NULL)); | |
448 | sasl_dispose(&conn); | |
449 | sasl_done(); | |
450 | return FAIL; | |
451 | } | |
452 | negotiated_ssf = *negotiated_ssf_ptr; | |
453 | HDEBUG(D_auth) | |
454 | debug_printf("Cyrus SASL %s negotiated SSF: %d\n", ob->server_mech, negotiated_ssf); | |
455 | if (negotiated_ssf > 0) | |
456 | { | |
457 | HDEBUG(D_auth) | |
458 | debug_printf("Exim does not implement SASL wrapping (needed for SSF %d).\n", negotiated_ssf); | |
459 | log_write(0, LOG_REJECT, "%s authenticator (%s):\n " | |
460 | "Cyrus SASL SSF %d not supported by Exim", ablock->name, ob->server_mech, negotiated_ssf); | |
461 | sasl_dispose(&conn); | |
462 | sasl_done(); | |
463 | return FAIL; | |
464 | } | |
465 | ||
466 | /* close down the connection, freeing up library's memory */ | |
420a0d19 CE |
467 | sasl_dispose(&conn); |
468 | sasl_done(); | |
420a0d19 | 469 | |
2ea97746 CE |
470 | /* Expand server_condition as an authorization check */ |
471 | return auth_check_serv_cond(ablock); | |
420a0d19 | 472 | |
2ea97746 CE |
473 | default: |
474 | /* Anything else is a temporary failure, and we'll let SASL print out | |
475 | * the error string for us | |
476 | */ | |
477 | HDEBUG(D_auth) | |
478 | debug_printf("Cyrus SASL temporary failure %d (%s)\n", rc, sasl_errstring(rc, NULL, NULL)); | |
479 | auth_defer_msg = | |
480 | string_sprintf("Cyrus SASL: %s", sasl_errstring(rc, NULL, NULL)); | |
481 | sasl_dispose(&conn); | |
482 | sasl_done(); | |
483 | return DEFER; | |
420a0d19 CE |
484 | } |
485 | } | |
486 | /* NOTREACHED */ | |
487 | return 0; /* Stop compiler complaints */ | |
488 | } | |
489 | ||
490 | /************************************************* | |
491 | * Diagnostic API * | |
492 | *************************************************/ | |
493 | ||
494 | void | |
495 | auth_cyrus_sasl_version_report(FILE *f) | |
496 | { | |
2ea97746 CE |
497 | const char *implementation, *version; |
498 | sasl_version_info(&implementation, &version, NULL, NULL, NULL, NULL); | |
499 | fprintf(f, "Library version: Cyrus SASL: Compile: %d.%d.%d\n" | |
500 | " Runtime: %s [%s]\n", | |
501 | SASL_VERSION_MAJOR, SASL_VERSION_MINOR, SASL_VERSION_STEP, | |
502 | version, implementation); | |
420a0d19 CE |
503 | } |
504 | ||
505 | /************************************************* | |
506 | * Client entry point * | |
507 | *************************************************/ | |
508 | ||
509 | /* For interface, see auths/README */ | |
510 | ||
511 | int | |
512 | auth_cyrus_sasl_client( | |
513 | auth_instance *ablock, /* authenticator block */ | |
2ea97746 | 514 | void * sx, /* connexction */ |
420a0d19 CE |
515 | int timeout, /* command timeout */ |
516 | uschar *buffer, /* for reading response */ | |
517 | int buffsize) /* size of buffer */ | |
518 | { | |
519 | /* We don't support clients (yet) in this implementation of cyrus_sasl */ | |
520 | return FAIL; | |
521 | } | |
522 | ||
2ea97746 | 523 | #endif /*!MACRO_PREDEF*/ |
420a0d19 CE |
524 | #endif /* AUTH_CYRUS_SASL */ |
525 | ||
526 | /* End of cyrus_sasl.c */ |