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Commit | Line | Data |
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fb7d74ef AC |
1 | /* |
2 | * authd.c: An interface to authd. | |
3 | * (based somewhat on ircd-ratbox dns.c) | |
4 | * | |
5 | * Copyright (C) 2005 Aaron Sethman <androsyn@ratbox.org> | |
6 | * Copyright (C) 2005-2012 ircd-ratbox development team | |
7 | * Copyright (C) 2016 William Pitcock <nenolod@dereferenced.org> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 | |
22 | * USA | |
23 | */ | |
24 | ||
d3f6b808 EM |
25 | #include "stdinc.h" |
26 | #include "rb_lib.h" | |
27 | #include "client.h" | |
28 | #include "ircd_defs.h" | |
29 | #include "parse.h" | |
64fae260 | 30 | #include "authproc.h" |
d3f6b808 EM |
31 | #include "match.h" |
32 | #include "logger.h" | |
33 | #include "s_conf.h" | |
34 | #include "s_stats.h" | |
35 | #include "client.h" | |
36 | #include "packet.h" | |
37 | #include "hash.h" | |
38 | #include "send.h" | |
39 | #include "numeric.h" | |
40 | #include "msg.h" | |
41 | #include "dns.h" | |
fb7d74ef | 42 | |
ae0a0585 EM |
43 | typedef void (*authd_cb_t)(int, char **); |
44 | ||
45 | struct authd_cb | |
46 | { | |
47 | authd_cb_t fn; | |
48 | int min_parc; | |
49 | }; | |
50 | ||
fb7d74ef AC |
51 | static int start_authd(void); |
52 | static void parse_authd_reply(rb_helper * helper); | |
53 | static void restart_authd_cb(rb_helper * helper); | |
ef0b13b9 | 54 | static EVH timeout_dead_authd_clients; |
fb7d74ef | 55 | |
ae0a0585 EM |
56 | static void cmd_accept_client(int parc, char **parv); |
57 | static void cmd_reject_client(int parc, char **parv); | |
58 | static void cmd_dns_result(int parc, char **parv); | |
59 | static void cmd_notice_client(int parc, char **parv); | |
60 | static void cmd_oper_warn(int parc, char **parv); | |
61 | static void cmd_stats_results(int parc, char **parv); | |
62 | ||
fb7d74ef AC |
63 | rb_helper *authd_helper; |
64 | static char *authd_path; | |
65 | ||
50808796 | 66 | uint32_t cid; |
d3f6b808 | 67 | static rb_dictionary *cid_clients; |
ef0b13b9 | 68 | static struct ev_entry *timeout_ev; |
d3f6b808 | 69 | |
3321eef4 | 70 | rb_dictionary *dnsbl_stats; |
d3f6b808 | 71 | |
5e9a3f86 EM |
72 | rb_dlink_list opm_list; |
73 | struct OPMListener opm_listeners[LISTEN_LAST]; | |
74 | ||
ae0a0585 EM |
75 | static struct authd_cb authd_cmd_tab[256] = |
76 | { | |
77 | ['A'] = { cmd_accept_client, 4 }, | |
78 | ['E'] = { cmd_dns_result, 5 }, | |
79 | ['N'] = { cmd_notice_client, 3 }, | |
80 | ['R'] = { cmd_reject_client, 7 }, | |
81 | ['W'] = { cmd_oper_warn, 3 }, | |
82 | ['X'] = { cmd_stats_results, 3 }, | |
83 | ['Y'] = { cmd_stats_results, 3 }, | |
84 | ['Z'] = { cmd_stats_results, 3 }, | |
85 | }; | |
86 | ||
fb7d74ef AC |
87 | static int |
88 | start_authd(void) | |
89 | { | |
90 | char fullpath[PATH_MAX + 1]; | |
91 | #ifdef _WIN32 | |
92 | const char *suffix = ".exe"; | |
93 | #else | |
94 | const char *suffix = ""; | |
95 | #endif | |
96 | if(authd_path == NULL) | |
97 | { | |
4d8cfacd | 98 | snprintf(fullpath, sizeof(fullpath), "%s%cauthd%s", ircd_paths[IRCD_PATH_LIBEXEC], RB_PATH_SEPARATOR, suffix); |
fb7d74ef AC |
99 | |
100 | if(access(fullpath, X_OK) == -1) | |
101 | { | |
4d8cfacd AC |
102 | snprintf(fullpath, sizeof(fullpath), "%s%cbin%cauthd%s", |
103 | ConfigFileEntry.dpath, RB_PATH_SEPARATOR, RB_PATH_SEPARATOR, suffix); | |
fb7d74ef AC |
104 | if(access(fullpath, X_OK) == -1) |
105 | { | |
7ad083b0 EM |
106 | ierror("Unable to execute authd in %s or %s/bin", |
107 | ircd_paths[IRCD_PATH_LIBEXEC], ConfigFileEntry.dpath); | |
fb7d74ef | 108 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
4d8cfacd AC |
109 | "Unable to execute authd in %s or %s/bin", |
110 | ircd_paths[IRCD_PATH_LIBEXEC], ConfigFileEntry.dpath); | |
fb7d74ef AC |
111 | return 1; |
112 | } | |
113 | ||
114 | } | |
115 | ||
116 | authd_path = rb_strdup(fullpath); | |
117 | } | |
118 | ||
d3f6b808 EM |
119 | if(cid_clients == NULL) |
120 | cid_clients = rb_dictionary_create("authd cid to uid mapping", rb_uint32cmp); | |
121 | ||
ef0b13b9 EM |
122 | if(timeout_ev == NULL) |
123 | timeout_ev = rb_event_addish("timeout_dead_authd_clients", timeout_dead_authd_clients, NULL, 1); | |
124 | ||
fb7d74ef AC |
125 | authd_helper = rb_helper_start("authd", authd_path, parse_authd_reply, restart_authd_cb); |
126 | ||
127 | if(authd_helper == NULL) | |
128 | { | |
7ad083b0 | 129 | ierror("Unable to start authd helper: %s", strerror(errno)); |
fb7d74ef AC |
130 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "Unable to start authd helper: %s", strerror(errno)); |
131 | return 1; | |
132 | } | |
e7c4ecd5 | 133 | |
fb7d74ef AC |
134 | ilog(L_MAIN, "authd helper started"); |
135 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd helper started"); | |
136 | rb_helper_run(authd_helper); | |
137 | return 0; | |
138 | } | |
139 | ||
6a7bb6f1 EM |
140 | static inline uint32_t |
141 | str_to_cid(const char *str) | |
142 | { | |
143 | long lcid = strtol(str, NULL, 16); | |
144 | ||
145 | if(lcid > UINT32_MAX || lcid <= 0) | |
146 | { | |
147 | iwarn("authd sent us back a bad client ID: %lx", lcid); | |
148 | restart_authd(); | |
149 | return 0; | |
150 | } | |
151 | ||
152 | return (uint32_t)lcid; | |
153 | } | |
154 | ||
155 | static inline struct Client * | |
5cbd46a8 | 156 | cid_to_client(uint32_t ncid, bool del) |
6a7bb6f1 EM |
157 | { |
158 | struct Client *client_p; | |
159 | ||
5cbd46a8 AJ |
160 | if(del) |
161 | client_p = rb_dictionary_delete(cid_clients, RB_UINT_TO_POINTER(ncid)); | |
6a7bb6f1 | 162 | else |
5cbd46a8 | 163 | client_p = rb_dictionary_retrieve(cid_clients, RB_UINT_TO_POINTER(ncid)); |
6a7bb6f1 | 164 | |
61d1befa EM |
165 | /* If the client's not found, that's okay, it may have already gone away. |
166 | * --Elizafox */ | |
6a7bb6f1 EM |
167 | |
168 | return client_p; | |
169 | } | |
170 | ||
adfe7b83 | 171 | static inline struct Client * |
5cbd46a8 | 172 | str_cid_to_client(const char *str, bool del) |
adfe7b83 | 173 | { |
5cbd46a8 | 174 | uint32_t ncid = str_to_cid(str); |
adfe7b83 | 175 | |
5cbd46a8 | 176 | if(ncid == 0) |
adfe7b83 EM |
177 | return NULL; |
178 | ||
5cbd46a8 | 179 | return cid_to_client(ncid, del); |
adfe7b83 EM |
180 | } |
181 | ||
fb7d74ef | 182 | static void |
ae0a0585 | 183 | cmd_accept_client(int parc, char **parv) |
fb7d74ef | 184 | { |
d3f6b808 | 185 | struct Client *client_p; |
6d0fafec | 186 | |
ae0a0585 EM |
187 | /* cid to uid (retrieve and delete) */ |
188 | if((client_p = str_cid_to_client(parv[1], true)) == NULL) | |
189 | return; | |
394b8dde | 190 | |
ae0a0585 EM |
191 | authd_accept_client(client_p, parv[2], parv[3]); |
192 | } | |
fb7d74ef | 193 | |
ae0a0585 EM |
194 | static void |
195 | cmd_dns_result(int parc, char **parv) | |
196 | { | |
197 | dns_results_callback(parv[1], parv[2], parv[3], parv[4]); | |
198 | } | |
d3f6b808 | 199 | |
ae0a0585 EM |
200 | static void |
201 | cmd_notice_client(int parc, char **parv) | |
202 | { | |
203 | struct Client *client_p; | |
d3f6b808 | 204 | |
1a16d47e EK |
205 | if ((client_p = str_cid_to_client(parv[1], false)) == NULL) |
206 | return; | |
207 | ||
208 | if (IsAnyDead(client_p)) | |
ae0a0585 | 209 | return; |
d3f6b808 | 210 | |
ae0a0585 EM |
211 | sendto_one_notice(client_p, ":%s", parv[2]); |
212 | } | |
d3f6b808 | 213 | |
ae0a0585 EM |
214 | static void |
215 | cmd_reject_client(int parc, char **parv) | |
216 | { | |
217 | struct Client *client_p; | |
50808796 | 218 | |
ae0a0585 EM |
219 | /* cid to uid (retrieve and delete) */ |
220 | if((client_p = str_cid_to_client(parv[1], true)) == NULL) | |
221 | return; | |
cc4d3931 | 222 | |
ae0a0585 EM |
223 | authd_reject_client(client_p, parv[3], parv[4], toupper(*parv[2]), parv[5], parv[6]); |
224 | } | |
adfe7b83 | 225 | |
ae0a0585 EM |
226 | static void |
227 | cmd_oper_warn(int parc, char **parv) | |
228 | { | |
e2a8228f | 229 | switch(*parv[1]) |
ae0a0585 EM |
230 | { |
231 | case 'D': /* Debug */ | |
e2a8228f EM |
232 | sendto_realops_snomask(SNO_DEBUG, L_ALL, "authd debug: %s", parv[2]); |
233 | idebug("authd: %s", parv[2]); | |
ae0a0585 EM |
234 | break; |
235 | case 'I': /* Info */ | |
e2a8228f EM |
236 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd info: %s", parv[2]); |
237 | inotice("authd: %s", parv[2]); | |
ae0a0585 EM |
238 | break; |
239 | case 'W': /* Warning */ | |
e2a8228f EM |
240 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd WARNING: %s", parv[2]); |
241 | iwarn("authd: %s", parv[2]); | |
ae0a0585 EM |
242 | break; |
243 | case 'C': /* Critical (error) */ | |
e2a8228f EM |
244 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd CRITICAL: %s", parv[2]); |
245 | ierror("authd: %s", parv[2]); | |
ae0a0585 EM |
246 | break; |
247 | default: /* idk */ | |
e2a8228f EM |
248 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd sent us an unknown oper notice type (%s): %s", parv[1], parv[2]); |
249 | ilog(L_MAIN, "authd unknown oper notice type (%s): %s", parv[1], parv[2]); | |
ae0a0585 EM |
250 | break; |
251 | } | |
252 | } | |
0a659bf0 | 253 | |
ae0a0585 EM |
254 | static void |
255 | cmd_stats_results(int parc, char **parv) | |
256 | { | |
257 | /* Select by type */ | |
258 | switch(*parv[2]) | |
259 | { | |
260 | case 'D': | |
261 | /* parv[0] conveys status */ | |
262 | if(parc < 4) | |
263 | { | |
264 | iwarn("authd sent a result with wrong number of arguments: got %d", parc); | |
265 | restart_authd(); | |
266 | return; | |
267 | } | |
268 | dns_stats_results_callback(parv[1], parv[0], parc - 3, (const char **)&parv[3]); | |
269 | break; | |
270 | default: | |
271 | break; | |
272 | } | |
273 | } | |
274 | ||
275 | static void | |
276 | parse_authd_reply(rb_helper * helper) | |
277 | { | |
278 | ssize_t len; | |
279 | int parc; | |
6d0fafec | 280 | char buf[READBUF_SIZE]; |
33ded5fc | 281 | char *parv[MAXPARA]; |
0a659bf0 | 282 | |
6d0fafec | 283 | while((len = rb_helper_read(helper, buf, sizeof(buf))) > 0) |
ae0a0585 EM |
284 | { |
285 | struct authd_cb *cmd; | |
286 | ||
33ded5fc | 287 | parc = rb_string_to_array(buf, parv, sizeof(parv)); |
1729f46e | 288 | cmd = &authd_cmd_tab[(unsigned char)*parv[0]]; |
ae0a0585 EM |
289 | if(cmd->fn != NULL) |
290 | { | |
291 | if(cmd->min_parc > parc) | |
394b8dde | 292 | { |
ae0a0585 EM |
293 | iwarn("authd sent a result with wrong number of arguments: expected %d, got %d", |
294 | cmd->min_parc, parc); | |
394b8dde | 295 | restart_authd(); |
ae0a0585 | 296 | continue; |
394b8dde EM |
297 | } |
298 | ||
ae0a0585 | 299 | cmd->fn(parc, parv); |
fb7d74ef | 300 | } |
b0326abd EM |
301 | else |
302 | { | |
303 | iwarn("authd sent us a bad command type: %c", *parv[0]); | |
304 | restart_authd(); | |
305 | continue; | |
306 | } | |
fb7d74ef AC |
307 | } |
308 | } | |
309 | ||
310 | void | |
311 | init_authd(void) | |
312 | { | |
313 | if(start_authd()) | |
314 | { | |
7ad083b0 | 315 | ierror("Unable to start authd helper: %s", strerror(errno)); |
fb7d74ef AC |
316 | exit(0); |
317 | } | |
318 | } | |
319 | ||
d3f6b808 EM |
320 | void |
321 | configure_authd(void) | |
322 | { | |
5e9a3f86 | 323 | /* Timeouts */ |
d3f6b808 EM |
324 | set_authd_timeout("ident_timeout", GlobalSetOptions.ident_timeout); |
325 | set_authd_timeout("rdns_timeout", ConfigFileEntry.connect_timeout); | |
50808796 | 326 | set_authd_timeout("rbl_timeout", ConfigFileEntry.connect_timeout); |
5e9a3f86 | 327 | |
50808796 | 328 | ident_check_enable(!ConfigFileEntry.disable_auth); |
5e9a3f86 EM |
329 | |
330 | /* Configure OPM */ | |
331 | if(rb_dlink_list_length(&opm_list) > 0 && | |
332 | (opm_listeners[LISTEN_IPV4].ipaddr[0] != '\0' || | |
333 | opm_listeners[LISTEN_IPV6].ipaddr[0] != '\0')) | |
334 | { | |
335 | rb_dlink_node *ptr; | |
336 | ||
337 | if(opm_listeners[LISTEN_IPV4].ipaddr[0] != '\0') | |
338 | rb_helper_write(authd_helper, "O opm_listener %s %hu", | |
339 | opm_listeners[LISTEN_IPV4].ipaddr, opm_listeners[LISTEN_IPV4].port); | |
340 | ||
5e9a3f86 EM |
341 | if(opm_listeners[LISTEN_IPV6].ipaddr[0] != '\0') |
342 | rb_helper_write(authd_helper, "O opm_listener %s %hu", | |
343 | opm_listeners[LISTEN_IPV6].ipaddr, opm_listeners[LISTEN_IPV6].port); | |
5e9a3f86 EM |
344 | |
345 | RB_DLINK_FOREACH(ptr, opm_list.head) | |
346 | { | |
347 | struct OPMScanner *scanner = ptr->data; | |
348 | rb_helper_write(authd_helper, "O opm_scanner %s %hu", | |
349 | scanner->type, scanner->port); | |
350 | } | |
351 | ||
352 | opm_check_enable(true); | |
353 | } | |
354 | else | |
355 | opm_check_enable(false); | |
d3f6b808 EM |
356 | } |
357 | ||
e7c4ecd5 EM |
358 | static void |
359 | authd_free_client(struct Client *client_p) | |
360 | { | |
361 | if(client_p == NULL || client_p->preClient == NULL) | |
362 | return; | |
363 | ||
364 | if(client_p->preClient->auth.cid == 0) | |
365 | return; | |
366 | ||
367 | if(authd_helper != NULL) | |
368 | rb_helper_write(authd_helper, "E %x", client_p->preClient->auth.cid); | |
369 | ||
370 | client_p->preClient->auth.accepted = true; | |
371 | client_p->preClient->auth.cid = 0; | |
372 | } | |
373 | ||
374 | static void | |
375 | authd_free_client_cb(rb_dictionary_element *delem, void *unused) | |
376 | { | |
377 | struct Client *client_p = delem->data; | |
378 | authd_free_client(client_p); | |
379 | } | |
380 | ||
381 | void | |
382 | authd_abort_client(struct Client *client_p) | |
383 | { | |
384 | rb_dictionary_delete(cid_clients, RB_UINT_TO_POINTER(client_p->preClient->auth.cid)); | |
385 | authd_free_client(client_p); | |
386 | } | |
387 | ||
fb7d74ef AC |
388 | static void |
389 | restart_authd_cb(rb_helper * helper) | |
390 | { | |
7ad083b0 | 391 | iwarn("authd: restart_authd_cb called, authd died?"); |
3949459b | 392 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "authd: restart_authd_cb called, authd died?"); |
e1582810 | 393 | |
fb7d74ef AC |
394 | if(helper != NULL) |
395 | { | |
396 | rb_helper_close(helper); | |
397 | authd_helper = NULL; | |
398 | } | |
e1582810 | 399 | |
e7c4ecd5 EM |
400 | rb_dictionary_destroy(cid_clients, authd_free_client_cb, NULL); |
401 | cid_clients = NULL; | |
e1582810 | 402 | |
fb7d74ef | 403 | start_authd(); |
e2a8228f | 404 | configure_authd(); |
fb7d74ef AC |
405 | } |
406 | ||
407 | void | |
408 | restart_authd(void) | |
409 | { | |
5c5296c8 | 410 | ierror("authd restarting..."); |
fb7d74ef AC |
411 | restart_authd_cb(authd_helper); |
412 | } | |
413 | ||
414 | void | |
415 | rehash_authd(void) | |
416 | { | |
417 | rb_helper_write(authd_helper, "R"); | |
418 | } | |
419 | ||
420 | void | |
421 | check_authd(void) | |
422 | { | |
423 | if(authd_helper == NULL) | |
424 | restart_authd(); | |
425 | } | |
d3f6b808 EM |
426 | |
427 | static inline uint32_t | |
428 | generate_cid(void) | |
429 | { | |
430 | if(++cid == 0) | |
431 | cid = 1; | |
432 | ||
433 | return cid; | |
434 | } | |
435 | ||
436 | /* Basically when this is called we begin handing off the client to authd for | |
437 | * processing. authd "owns" the client until processing is finished, or we | |
438 | * timeout from authd. authd will make a decision whether or not to accept the | |
439 | * client, but it's up to other parts of the code (for now) to decide if we're | |
440 | * gonna accept the client and ignore authd's suggestion. | |
441 | * | |
442 | * --Elizafox | |
762468f8 SA |
443 | * |
444 | * If this is an SSL connection we must defer handing off the client for | |
445 | * reading until it is open and we have the certificate fingerprint, otherwise | |
446 | * it's possible for the client to immediately send data before authd completes | |
447 | * and before the status of the connection is communicated via ssld. This data | |
448 | * could then be processed too early by read_packet(). | |
d3f6b808 EM |
449 | */ |
450 | void | |
762468f8 | 451 | authd_initiate_client(struct Client *client_p, bool defer) |
d3f6b808 EM |
452 | { |
453 | char client_ipaddr[HOSTIPLEN+1]; | |
454 | char listen_ipaddr[HOSTIPLEN+1]; | |
455 | uint16_t client_port, listen_port; | |
456 | uint32_t authd_cid; | |
457 | ||
154dc91e | 458 | if(client_p->preClient == NULL || client_p->preClient->auth.cid != 0) |
d3f6b808 EM |
459 | return; |
460 | ||
154dc91e | 461 | authd_cid = client_p->preClient->auth.cid = generate_cid(); |
d3f6b808 EM |
462 | |
463 | /* Collisions are extremely unlikely, so disregard the possibility */ | |
50808796 | 464 | rb_dictionary_add(cid_clients, RB_UINT_TO_POINTER(authd_cid), client_p); |
d3f6b808 EM |
465 | |
466 | /* Retrieve listener and client IP's */ | |
467 | rb_inet_ntop_sock((struct sockaddr *)&client_p->preClient->lip, listen_ipaddr, sizeof(listen_ipaddr)); | |
468 | rb_inet_ntop_sock((struct sockaddr *)&client_p->localClient->ip, client_ipaddr, sizeof(client_ipaddr)); | |
469 | ||
470 | /* Retrieve listener and client ports */ | |
d86692fa EM |
471 | listen_port = ntohs(GET_SS_PORT(&client_p->preClient->lip)); |
472 | client_port = ntohs(GET_SS_PORT(&client_p->localClient->ip)); | |
d3f6b808 | 473 | |
762468f8 SA |
474 | if(defer) |
475 | client_p->preClient->auth.flags |= AUTHC_F_DEFERRED; | |
476 | ||
59d42a9f | 477 | /* Add a bit of a fudge factor... */ |
154dc91e | 478 | client_p->preClient->auth.timeout = rb_current_time() + ConfigFileEntry.connect_timeout + 10; |
d3f6b808 | 479 | |
c6ad9b0c SA |
480 | rb_helper_write(authd_helper, "C %x %s %hu %s %hu %x", authd_cid, listen_ipaddr, listen_port, client_ipaddr, client_port, |
481 | #ifdef HAVE_LIBSCTP | |
482 | IsSCTP(client_p) ? IPPROTO_SCTP : IPPROTO_TCP); | |
483 | #else | |
484 | IPPROTO_TCP); | |
485 | #endif | |
d3f6b808 EM |
486 | } |
487 | ||
762468f8 SA |
488 | static inline void |
489 | authd_read_client(struct Client *client_p) | |
490 | { | |
491 | /* | |
492 | * When a client has auth'ed, we want to start reading what it sends | |
493 | * us. This is what read_packet() does. | |
494 | * -- adrian | |
495 | * | |
496 | * Above comment was originally in s_auth.c, but moved here with below code. | |
497 | * --Elizafox | |
498 | */ | |
499 | rb_dlinkAddTail(client_p, &client_p->node, &global_client_list); | |
500 | read_packet(client_p->localClient->F, client_p); | |
501 | } | |
502 | ||
d3f6b808 EM |
503 | /* When this is called we have a decision on client acceptance. |
504 | * | |
762468f8 SA |
505 | * After this point authd no longer "owns" the client, but if |
506 | * it's flagged as deferred then we're still waiting for a call | |
507 | * to authd_deferred_client(). | |
d3f6b808 | 508 | */ |
b1a577f2 | 509 | static inline void |
d3f6b808 EM |
510 | authd_decide_client(struct Client *client_p, const char *ident, const char *host, bool accept, char cause, const char *data, const char *reason) |
511 | { | |
154dc91e | 512 | if(client_p->preClient == NULL || client_p->preClient->auth.cid == 0) |
d3f6b808 EM |
513 | return; |
514 | ||
515 | if(*ident != '*') | |
516 | { | |
517 | rb_strlcpy(client_p->username, ident, sizeof(client_p->username)); | |
e7c4cf63 | 518 | SetGotId(client_p); |
4f6119cd | 519 | ServerStats.is_asuc++; |
d3f6b808 EM |
520 | } |
521 | else | |
4f6119cd | 522 | ServerStats.is_abad++; /* s_auth used to do this, stay compatible */ |
d3f6b808 EM |
523 | |
524 | if(*host != '*') | |
525 | rb_strlcpy(client_p->host, host, sizeof(client_p->host)); | |
526 | ||
154dc91e | 527 | rb_dictionary_delete(cid_clients, RB_UINT_TO_POINTER(client_p->preClient->auth.cid)); |
6d5edc6f | 528 | |
154dc91e EM |
529 | client_p->preClient->auth.accepted = accept; |
530 | client_p->preClient->auth.cause = cause; | |
531 | client_p->preClient->auth.data = (data == NULL ? NULL : rb_strdup(data)); | |
532 | client_p->preClient->auth.reason = (reason == NULL ? NULL : rb_strdup(reason)); | |
533 | client_p->preClient->auth.cid = 0; | |
d3f6b808 | 534 | |
762468f8 SA |
535 | client_p->preClient->auth.flags |= AUTHC_F_COMPLETE; |
536 | if((client_p->preClient->auth.flags & AUTHC_F_DEFERRED) == 0) | |
537 | authd_read_client(client_p); | |
538 | } | |
539 | ||
540 | void | |
541 | authd_deferred_client(struct Client *client_p) | |
542 | { | |
543 | client_p->preClient->auth.flags &= ~AUTHC_F_DEFERRED; | |
544 | if(client_p->preClient->auth.flags & AUTHC_F_COMPLETE) | |
545 | authd_read_client(client_p); | |
d3f6b808 EM |
546 | } |
547 | ||
b1a577f2 EM |
548 | /* Convenience function to accept client */ |
549 | void | |
550 | authd_accept_client(struct Client *client_p, const char *ident, const char *host) | |
551 | { | |
552 | authd_decide_client(client_p, ident, host, true, '\0', NULL, NULL); | |
553 | } | |
554 | ||
555 | /* Convenience function to reject client */ | |
556 | void | |
557 | authd_reject_client(struct Client *client_p, const char *ident, const char *host, char cause, const char *data, const char *reason) | |
558 | { | |
559 | authd_decide_client(client_p, ident, host, false, cause, data, reason); | |
560 | } | |
561 | ||
ef0b13b9 EM |
562 | static void |
563 | timeout_dead_authd_clients(void *notused __unused) | |
564 | { | |
565 | rb_dictionary_iter iter; | |
0bb5d3f0 | 566 | struct Client *client_p; |
e7c4ecd5 EM |
567 | rb_dlink_list freelist = { NULL, NULL, 0 }; |
568 | rb_dlink_node *ptr, *nptr; | |
ef0b13b9 | 569 | |
0bb5d3f0 | 570 | RB_DICTIONARY_FOREACH(client_p, &iter, cid_clients) |
ef0b13b9 | 571 | { |
154dc91e | 572 | if(client_p->preClient->auth.timeout < rb_current_time()) |
e7c4ecd5 EM |
573 | { |
574 | authd_free_client(client_p); | |
575 | rb_dlinkAddAlloc(client_p, &freelist); | |
576 | } | |
577 | } | |
578 | ||
579 | /* RB_DICTIONARY_FOREACH is not safe for deletion, so we do this crap */ | |
580 | RB_DLINK_FOREACH_SAFE(ptr, nptr, freelist.head) | |
581 | { | |
582 | client_p = ptr->data; | |
583 | rb_dictionary_delete(cid_clients, RB_UINT_TO_POINTER(client_p->preClient->auth.cid)); | |
ef0b13b9 EM |
584 | } |
585 | } | |
586 | ||
3321eef4 | 587 | /* Send a new DNSBL entry to authd */ |
d3f6b808 | 588 | void |
3321eef4 | 589 | add_dnsbl_entry(const char *host, const char *reason, uint8_t iptype, rb_dlink_list *filters) |
d3f6b808 EM |
590 | { |
591 | rb_dlink_node *ptr; | |
3321eef4 | 592 | struct DNSBLEntryStats *stats = rb_malloc(sizeof(*stats)); |
50808796 | 593 | char filterbuf[BUFSIZE] = "*"; |
d3f6b808 EM |
594 | size_t s = 0; |
595 | ||
3321eef4 AC |
596 | if(dnsbl_stats == NULL) |
597 | dnsbl_stats = rb_dictionary_create("dnsbl statistics", rb_strcasecmp); | |
e7c4ecd5 | 598 | |
d3f6b808 EM |
599 | /* Build a list of comma-separated values for authd. |
600 | * We don't check for validity - do it elsewhere. | |
601 | */ | |
602 | RB_DLINK_FOREACH(ptr, filters->head) | |
603 | { | |
604 | char *filter = ptr->data; | |
605 | size_t filterlen = strlen(filter) + 1; | |
606 | ||
607 | if(s + filterlen > sizeof(filterbuf)) | |
608 | break; | |
609 | ||
610 | snprintf(&filterbuf[s], sizeof(filterbuf) - s, "%s,", filter); | |
611 | ||
612 | s += filterlen; | |
613 | } | |
614 | ||
615 | if(s) | |
616 | filterbuf[s - 1] = '\0'; | |
617 | ||
4f2b9a4f | 618 | stats->host = rb_strdup(host); |
d3f6b808 EM |
619 | stats->iptype = iptype; |
620 | stats->hits = 0; | |
3321eef4 | 621 | rb_dictionary_add(dnsbl_stats, stats->host, stats); |
d3f6b808 EM |
622 | |
623 | rb_helper_write(authd_helper, "O rbl %s %hhu %s :%s", host, iptype, filterbuf, reason); | |
624 | } | |
625 | ||
3321eef4 | 626 | /* Delete a DNSBL entry. */ |
d3f6b808 | 627 | void |
3321eef4 | 628 | del_dnsbl_entry(const char *host) |
d3f6b808 | 629 | { |
3321eef4 | 630 | struct DNSBLEntryStats *stats = rb_dictionary_retrieve(dnsbl_stats, host); |
5e9a3f86 EM |
631 | if(stats != NULL) |
632 | { | |
3321eef4 | 633 | rb_dictionary_delete(dnsbl_stats, host); |
4f2b9a4f | 634 | rb_free(stats->host); |
5e9a3f86 EM |
635 | rb_free(stats); |
636 | } | |
d3f6b808 EM |
637 | |
638 | rb_helper_write(authd_helper, "O rbl_del %s", host); | |
639 | } | |
640 | ||
e7c4ecd5 | 641 | static void |
3321eef4 | 642 | dnsbl_delete_elem(rb_dictionary_element *delem, void *unused) |
e7c4ecd5 | 643 | { |
3321eef4 | 644 | struct DNSBLEntryStats *stats = delem->data; |
e7c4ecd5 EM |
645 | |
646 | rb_free(stats->host); | |
647 | rb_free(stats); | |
648 | } | |
649 | ||
3321eef4 | 650 | /* Delete all the DNSBL entries. */ |
d3f6b808 | 651 | void |
3321eef4 | 652 | del_dnsbl_entry_all(void) |
d3f6b808 | 653 | { |
3321eef4 AC |
654 | if(dnsbl_stats != NULL) |
655 | rb_dictionary_destroy(dnsbl_stats, dnsbl_delete_elem, NULL); | |
656 | dnsbl_stats = NULL; | |
d3f6b808 EM |
657 | |
658 | rb_helper_write(authd_helper, "O rbl_del_all"); | |
659 | } | |
660 | ||
661 | /* Adjust an authd timeout value */ | |
4f6119cd | 662 | bool |
d3f6b808 EM |
663 | set_authd_timeout(const char *key, int timeout) |
664 | { | |
4f6119cd EM |
665 | if(timeout <= 0) |
666 | return false; | |
667 | ||
d3f6b808 | 668 | rb_helper_write(authd_helper, "O %s %d", key, timeout); |
4f6119cd | 669 | return true; |
d3f6b808 | 670 | } |
ad043803 | 671 | |
4f6119cd | 672 | /* Enable identd checks */ |
ad043803 EM |
673 | void |
674 | ident_check_enable(bool enabled) | |
675 | { | |
676 | rb_helper_write(authd_helper, "O ident_enabled %d", enabled ? 1 : 0); | |
677 | } | |
4f6119cd | 678 | |
5e9a3f86 EM |
679 | /* Create an OPM listener |
680 | * XXX - This is a big nasty hack, but it avoids resending duplicate data when | |
681 | * configure_authd() is called. | |
682 | */ | |
683 | void | |
684 | conf_create_opm_listener(const char *ip, uint16_t port) | |
685 | { | |
686 | char ipbuf[HOSTIPLEN]; | |
687 | struct OPMListener *listener; | |
688 | ||
689 | rb_strlcpy(ipbuf, ip, sizeof(ipbuf)); | |
690 | if(ipbuf[0] == ':') | |
691 | { | |
692 | memmove(ipbuf + 1, ipbuf, sizeof(ipbuf) - 1); | |
693 | ipbuf[0] = '0'; | |
694 | } | |
695 | ||
696 | /* I am much too lazy to use rb_inet_pton and GET_SS_FAMILY for now --Elizafox */ | |
697 | listener = &opm_listeners[(strchr(ipbuf, ':') != NULL ? LISTEN_IPV6 : LISTEN_IPV4)]; | |
698 | rb_strlcpy(listener->ipaddr, ipbuf, sizeof(listener->ipaddr)); | |
699 | listener->port = port; | |
700 | } | |
701 | ||
b1a577f2 | 702 | void |
34f16c46 | 703 | create_opm_listener(const char *ip, uint16_t port) |
4f6119cd | 704 | { |
d9364d29 | 705 | char ipbuf[HOSTIPLEN]; |
5e9a3f86 EM |
706 | |
707 | /* XXX duplicated in conf_create_opm_listener */ | |
d9364d29 EM |
708 | rb_strlcpy(ipbuf, ip, sizeof(ipbuf)); |
709 | if(ipbuf[0] == ':') | |
710 | { | |
711 | memmove(ipbuf + 1, ipbuf, sizeof(ipbuf) - 1); | |
712 | ipbuf[0] = '0'; | |
713 | } | |
714 | ||
5e9a3f86 | 715 | conf_create_opm_listener(ip, port); |
9e5c31ea | 716 | rb_helper_write(authd_helper, "O opm_listener %s %hu", ipbuf, port); |
5e9a3f86 EM |
717 | } |
718 | ||
719 | void | |
720 | delete_opm_listener_all(void) | |
721 | { | |
722 | memset(&opm_listeners, 0, sizeof(opm_listeners)); | |
723 | rb_helper_write(authd_helper, "O opm_listener_del_all"); | |
b1a577f2 EM |
724 | } |
725 | ||
726 | /* Disable all OPM scans */ | |
727 | void | |
728 | opm_check_enable(bool enabled) | |
729 | { | |
3d2fc110 | 730 | rb_helper_write(authd_helper, "O opm_enabled %d", enabled ? 1 : 0); |
b1a577f2 EM |
731 | } |
732 | ||
5e9a3f86 EM |
733 | /* Create an OPM proxy scanner |
734 | * XXX - This is a big nasty hack, but it avoids resending duplicate data when | |
735 | * configure_authd() is called. | |
736 | */ | |
737 | void | |
738 | conf_create_opm_proxy_scanner(const char *type, uint16_t port) | |
739 | { | |
740 | struct OPMScanner *scanner = rb_malloc(sizeof(struct OPMScanner)); | |
741 | ||
742 | rb_strlcpy(scanner->type, type, sizeof(scanner->type)); | |
743 | scanner->port = port; | |
744 | rb_dlinkAdd(scanner, &scanner->node, &opm_list); | |
745 | } | |
746 | ||
b1a577f2 | 747 | void |
51fa2ab8 | 748 | create_opm_proxy_scanner(const char *type, uint16_t port) |
b1a577f2 | 749 | { |
5e9a3f86 | 750 | conf_create_opm_proxy_scanner(type, port); |
51fa2ab8 | 751 | rb_helper_write(authd_helper, "O opm_scanner %s %hu", type, port); |
4f6119cd | 752 | } |
3d2fc110 EM |
753 | |
754 | void | |
755 | delete_opm_proxy_scanner(const char *type, uint16_t port) | |
756 | { | |
5e9a3f86 EM |
757 | rb_dlink_node *ptr, *nptr; |
758 | ||
759 | RB_DLINK_FOREACH_SAFE(ptr, nptr, opm_list.head) | |
760 | { | |
761 | struct OPMScanner *scanner = ptr->data; | |
762 | ||
763 | if(rb_strncasecmp(scanner->type, type, sizeof(scanner->type)) == 0 && | |
764 | scanner->port == port) | |
765 | { | |
766 | rb_dlinkDelete(ptr, &opm_list); | |
767 | rb_free(scanner); | |
768 | break; | |
769 | } | |
770 | } | |
771 | ||
3d2fc110 EM |
772 | rb_helper_write(authd_helper, "O opm_scanner_del %s %hu", type, port); |
773 | } | |
774 | ||
775 | void | |
776 | delete_opm_proxy_scanner_all(void) | |
777 | { | |
5e9a3f86 EM |
778 | rb_dlink_node *ptr, *nptr; |
779 | ||
780 | RB_DLINK_FOREACH_SAFE(ptr, nptr, opm_list.head) | |
781 | { | |
782 | struct OPMScanner *scanner = ptr->data; | |
783 | ||
784 | rb_dlinkDelete(ptr, &opm_list); | |
785 | rb_free(scanner); | |
786 | } | |
787 | ||
3d2fc110 EM |
788 | rb_helper_write(authd_helper, "O opm_scanner_del_all"); |
789 | } |