87822447 |
1 | #define _LARGEFILE64_SOURCE |
ff47641b |
2 | #define _GNU_SOURCE |
87822447 |
3 | |
bed98ff9 |
4 | #include "httpd.h" |
5 | #include "http_config.h" |
bed98ff9 |
6 | #include "http_log.h" |
7193eb01 |
7 | #include "http_protocol.h" |
8 | #include "http_request.h" |
9 | #include "http_core.h" |
87822447 |
10 | |
ff47641b |
11 | #ifdef sun |
12 | #include <synch.h> |
13 | #elif linux |
14 | #define use_pthreads |
15 | #include <features.h> |
16 | #include <sys/types.h> |
17 | #include <sys/mman.h> |
18 | #include <pthread.h> |
19 | #else |
20 | #error "make sure you include the right stuff here" |
21 | #endif |
22 | |
23 | #ifndef MAXNAMELEN |
24 | #define MAXNAMELEN 1024 |
25 | #endif |
26 | |
891fb458 |
27 | #ifdef STANDARD20_MODULE_STUFF |
c9d59a9c |
28 | #define APACHE2 |
29 | #endif |
30 | |
31 | /********************* APACHE1 ******************************************************************************/ |
32 | #ifndef APACHE2 |
ebb1f61c |
33 | #include "ap_config.h" |
34 | #if defined(sun) |
35 | #include <sys/ioccom.h> |
36 | #endif /* sun */ |
37 | #include <http_conf_globals.h> |
38 | #define MK_POOL pool |
39 | #define MK_TABLE_GET ap_table_get |
40 | #define MK_TABLE_SET ap_table_set |
41 | #define command(name, func, var, type, usage) \ |
42 | { name, func, \ |
43 | NULL , \ |
44 | RSRC_CONF | ACCESS_CONF , type, usage } |
21a7788b |
45 | module waklog_module; |
ebb1f61c |
46 | |
47 | /********************* APACHE2 ******************************************************************************/ |
48 | #else |
87822447 |
49 | #include <apr_strings.h> |
50 | #include <apr_base64.h> |
ebb1f61c |
51 | #define ap_pcalloc apr_pcalloc |
52 | #define ap_pdupstr apr_pdupstr |
53 | #define ap_pstrdup apr_pstrdup |
87822447 |
54 | #define MK_POOL apr_pool_t |
55 | #define MK_TABLE_GET apr_table_get |
d06251b1 |
56 | #define MK_TABLE_SET apr_table_set |
87822447 |
57 | #include "unixd.h" |
58 | extern unixd_config_rec unixd_config; |
59 | #define ap_user_id unixd_config.user_id |
60 | #define ap_group_id unixd_config.group_id |
61 | #define ap_user_name unixd_config.user_name |
62 | #define command(name, func, var, type, usage) \ |
63 | AP_INIT_ ## type (name, (void*) func, \ |
ebb1f61c |
64 | NULL, \ |
65 | RSRC_CONF | ACCESS_CONF, usage) |
21a7788b |
66 | module AP_MODULE_DECLARE_DATA waklog_module; |
67 | typedef struct { int dummy; } child_info; |
87822447 |
68 | const char *userdata_key = "waklog_init"; |
21a7788b |
69 | |
c9d59a9c |
70 | #endif /* APACHE2 */ |
ebb1f61c |
71 | /**************************************************************************************************/ |
877d453f |
72 | |
73 | #include <krb5.h> |
877d453f |
74 | #include <stropts.h> |
75 | #include <afs/venus.h> |
76 | #include <afs/auth.h> |
77 | #include <afs/dirpath.h> |
78 | #include <afs/ptuser.h> |
79 | #include <rx/rxkad.h> |
80 | |
81 | #define TKT_LIFE ( 12 * 60 * 60 ) |
42d78dfb |
82 | #define SLEEP_TIME ( TKT_LIFE - 5*60 ) |
877d453f |
83 | |
84 | #define WAKLOG_ON 1 |
85 | #define WAKLOG_OFF 2 |
86 | #define WAKLOG_UNSET 0 |
87 | |
88 | #ifdef WAKLOG_DEBUG |
89 | #undef APLOG_DEBUG |
90 | #define APLOG_DEBUG APLOG_ERR |
91 | #endif |
92 | |
877d453f |
93 | /* this is used to turn off pag generation for the backround worker child during startup */ |
94 | int pag_for_children = 1; |
95 | |
96 | typedef struct |
97 | { |
98 | int forked; |
99 | int configured; |
100 | int protect; |
101 | int usertokens; |
c8563f50 |
102 | int cell_in_principal; |
21a7788b |
103 | int disable_token_cache; |
877d453f |
104 | char *keytab; |
105 | char *principal; |
106 | char *default_principal; |
107 | char *default_keytab; |
108 | char *afs_cell; |
98534230 |
109 | char *afs_cell_realm; |
877d453f |
110 | char *path; |
111 | MK_POOL *p; |
112 | } |
113 | waklog_config; |
114 | |
115 | typedef struct |
116 | { |
117 | struct ktc_token token; |
118 | char clientprincipal[MAXNAMELEN]; |
119 | krb5_context kcontext; |
120 | krb5_ccache ccache; |
121 | struct ktc_principal server; |
122 | struct ktc_principal client; |
123 | int pr_init; |
124 | } waklog_child_config; |
125 | |
126 | waklog_child_config child; |
127 | |
128 | struct tokencache_ent { |
129 | char clientprincipal[MAXNAMELEN]; |
130 | struct ktc_token token; |
131 | struct ktc_principal client; |
132 | struct ktc_principal server; |
133 | time_t lastused; |
134 | int persist; |
135 | }; |
136 | |
137 | #define SHARED_TABLE_SIZE 512 |
138 | |
139 | struct sharedspace_s { |
140 | int renewcount; |
141 | struct tokencache_ent sharedtokens[SHARED_TABLE_SIZE]; |
142 | }; |
143 | |
144 | struct sharedspace_s *sharedspace = NULL; |
145 | |
146 | struct renew_ent { |
147 | char *keytab; |
148 | char *principal; |
149 | int lastrenewed; |
150 | }; |
151 | |
152 | #ifdef use_pthreads |
153 | pthread_rwlock_t *sharedlock = NULL; |
154 | #else |
155 | rwlock_t *sharedlock = NULL; |
156 | #endif |
157 | |
158 | struct renew_ent renewtable[SHARED_TABLE_SIZE]; |
159 | |
160 | int renewcount = 0; |
161 | |
ebb1f61c |
162 | |
87822447 |
163 | |
c69d952f |
164 | #define getModConfig(P, X) P = (waklog_config *) ap_get_module_config( (X)->module_config, &waklog_module ); |
87822447 |
165 | |
4e1ae1cd |
166 | #include <krb5.h> |
bed98ff9 |
167 | |
7193eb01 |
168 | #if defined(sun) |
bed98ff9 |
169 | #include <sys/ioccom.h> |
7193eb01 |
170 | #endif /* sun */ |
bed98ff9 |
171 | #include <stropts.h> |
bed98ff9 |
172 | #include <afs/venus.h> |
7193eb01 |
173 | #include <afs/auth.h> |
d06251b1 |
174 | #include <afs/dirpath.h> |
175 | #include <afs/ptuser.h> |
7193eb01 |
176 | #include <rx/rxkad.h> |
177 | |
58bbdc54 |
178 | |
87822447 |
179 | static void |
3f4fda20 |
180 | log_error (const char *file, int line, int level, int status, |
42d78dfb |
181 | const server_rec * s, const char *fmt, ...) |
4d47a8d9 |
182 | { |
3f4fda20 |
183 | char errstr[4096]; |
184 | va_list ap; |
4d47a8d9 |
185 | |
3f4fda20 |
186 | va_start (ap, fmt); |
187 | vsnprintf (errstr, 1024, fmt, ap); |
188 | va_end (ap); |
4d47a8d9 |
189 | |
c9d59a9c |
190 | #ifdef APACHE2 |
3f4fda20 |
191 | ap_log_error (file, line, level | APLOG_NOERRNO, status, s, "(%d) %s", getpid(), errstr); |
87822447 |
192 | #else |
3f4fda20 |
193 | ap_log_error (file, line, level | APLOG_NOERRNO, s, "(%d) %s", getpid(), errstr); |
87822447 |
194 | #endif |
4d47a8d9 |
195 | |
87822447 |
196 | } |
4d47a8d9 |
197 | |
3f4fda20 |
198 | waklog_config *retrieve_config(request_rec *r) { |
199 | |
200 | request_rec *my; |
201 | waklog_config *cfg; |
202 | |
203 | if ( r && r->main ) { |
204 | my = r->main; |
205 | } else if (r) { |
206 | my = r; |
207 | } else { |
208 | return NULL; |
209 | } |
210 | |
211 | if ( my && ( cfg = (waklog_config *) ap_get_module_config(my->per_dir_config, &waklog_module ) ) ) { |
212 | return cfg; |
213 | } else { |
214 | getModConfig (cfg, r->server); |
215 | } |
216 | |
217 | return cfg; |
218 | |
219 | } |
313dde40 |
220 | |
3f4fda20 |
221 | /* set_auth -- sets the tokens of the current process to this user. |
222 | if "self" is set, it divines the user from the current requests' environment. |
223 | otherwise, it's gettng it from principal/keytab */ |
224 | |
225 | int |
226 | set_auth ( server_rec *s, request_rec *r, int self, char *principal, char *keytab, int storeonly ) { |
227 | |
228 | int i; |
229 | int usecached = 0; |
230 | krb5_error_code kerror = 0; |
231 | krb5_principal kprinc = NULL; |
232 | krb5_get_init_creds_opt kopts; |
233 | krb5_creds v5creds; |
234 | krb5_creds increds; |
235 | struct ktc_principal server = { "afs", "", "" }; |
236 | struct ktc_principal client; |
237 | struct ktc_token token; |
238 | krb5_creds *v5credsp = NULL; |
239 | krb5_keytab krb5kt = NULL; |
240 | char buf[MAXNAMELEN]; |
241 | waklog_config *cfg; |
242 | int rc = 0; |
243 | int buflen = 0; |
244 | time_t oldest_time = 0; |
245 | int oldest; |
246 | int stored = -1; |
247 | time_t mytime; |
248 | int indentical; |
c8563f50 |
249 | int cell_in_principal; |
250 | int attempt; |
7c53b5d0 |
251 | int use_client_credentials = 0; |
3f4fda20 |
252 | |
253 | char k5user[MAXNAMELEN]; |
254 | char *k5secret; |
7c53b5d0 |
255 | char *k5path = NULL; |
3f4fda20 |
256 | |
7c53b5d0 |
257 | k5path = !r ? NULL : MK_TABLE_GET( r->subprocess_env, "KRB5CCNAME" ); |
258 | |
3f4fda20 |
259 | memset((char *) &increds, 0, sizeof(increds)); |
3f4fda20 |
260 | /* init some stuff if it ain't already */ |
261 | |
262 | if ( ! child.kcontext ) { |
263 | kerror = krb5_init_context(&child.kcontext); |
264 | } |
265 | |
7c53b5d0 |
266 | if (!k5path || !*k5path) { |
267 | k5path = "MEMORY:tmpcache"; |
268 | } |
269 | if ( ( ! child.ccache ) && ( kerror = krb5_cc_resolve(child.kcontext, k5path, &child.ccache) ) ) { |
270 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize credentials cache %s err=%d", |
271 | k5path, kerror ); |
3f4fda20 |
272 | } |
273 | |
d3bea354 |
274 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth: %d, %s, %s, %d, KRB5CC=%s user=%s", |
7c53b5d0 |
275 | self, principal ? principal : "NULL", |
d3bea354 |
276 | keytab ? keytab : "NULL", |
277 | storeonly, |
278 | k5path ? k5path : "NULL", |
279 | #ifdef APACHE2 |
280 | (r && r->user) ? r->user : "NULL" |
281 | #else |
282 | "NULL" |
283 | #endif |
284 | ); |
3f4fda20 |
285 | |
286 | /* pull the server config record that we care about... */ |
287 | |
288 | if ( r ) { |
289 | cfg = retrieve_config(r); |
290 | } else { |
291 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
292 | "mod_waklog: set_auth using no config" ); |
3f4fda20 |
293 | getModConfig (cfg, s); |
294 | } |
295 | |
296 | if ( ! cfg ) { |
297 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: cfg is %d", cfg ); |
298 | } |
299 | |
c9d59a9c |
300 | #ifdef APACHE2 |
3f4fda20 |
301 | if ( self ) { |
302 | /* pull out our principal name and stuff from the environment -- webauth better have sent |
303 | through. This here is also where you'd suck stuff out of KRB5CCNAME if we were |
304 | using something like Cosign */ |
305 | |
306 | if ( ! ( r && r->connection && r->user )) { |
307 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: self authentication selected, but no data available"); |
7c53b5d0 |
308 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: r->user=%s", (r->user==NULL ? "null" : r->user==NULL)); |
3f4fda20 |
309 | return -1; |
310 | } |
311 | |
312 | strncpy(k5user, r->user, sizeof(k5user)); |
313 | |
314 | /* the other thing we need is someone's password */ |
315 | if ( ! ( k5secret = (char *) MK_TABLE_GET( r->notes, "ATTR_PASSWORD" ) ) ) { |
316 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cant do self auth without a secret"); |
317 | return -1; |
318 | } |
319 | |
320 | /* we'll pick this up later after we've checked the cache and current state */ |
321 | |
322 | } else |
7d202cdd |
323 | if (r && r->user && !principal) { |
7c53b5d0 |
324 | strncpy(k5user, r->user, sizeof(k5user)); |
325 | keytab = NULL; |
98534230 |
326 | } else |
327 | #endif |
328 | if ( principal ) { |
3f4fda20 |
329 | strncpy( k5user, principal, sizeof(k5user)); |
330 | } |
331 | |
7c53b5d0 |
332 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth: k5user=%s", k5user ? k5user : "NULL"); |
3f4fda20 |
333 | mytime = time(0); |
334 | |
335 | /* see if we should just go ahead and ignore this call, since we already should be set to these |
336 | credentials */ |
313dde40 |
337 | |
3f4fda20 |
338 | if ( ! storeonly ) { |
313dde40 |
339 | |
3f4fda20 |
340 | #ifdef use_pthreads |
341 | pthread_rwlock_rdlock( sharedlock ); |
342 | #else |
343 | rw_rdlock( sharedlock ); |
344 | #endif |
313dde40 |
345 | |
3f4fda20 |
346 | for ( i = 0; i < SHARED_TABLE_SIZE; ++i ) { |
347 | |
348 | /* if it's a token for the principal we're looking for, and it hasn't expired yet */ |
349 | |
350 | if ( ( !strcmp( k5user, |
351 | sharedspace->sharedtokens[i].clientprincipal ) ) && |
352 | ( sharedspace->sharedtokens[i].token.endTime > mytime ) ) { |
353 | |
354 | if ( ! memcmp(&child.token, &sharedspace->sharedtokens[i].token, sizeof(child.token) ) ) { |
355 | indentical = 1; |
356 | } else { |
357 | indentical = 0; |
358 | } |
359 | |
360 | /* copy the token out of the cache and into the child object */ |
361 | |
362 | strcpy(child.clientprincipal, sharedspace->sharedtokens[i].clientprincipal ); |
363 | memcpy(&child.token, &sharedspace->sharedtokens[i].token, sizeof(child.token)); |
364 | memcpy(&child.server, &sharedspace->sharedtokens[i].server, sizeof(child.server)); |
365 | memcpy(&child.client, &sharedspace->sharedtokens[i].client, sizeof(child.client)); |
366 | |
367 | /* set our last used time thing */ |
368 | sharedspace->sharedtokens[i].lastused = mytime; |
369 | |
370 | usecached = 1; |
371 | |
372 | break; |
373 | |
374 | } |
375 | |
376 | } |
377 | |
378 | /* release the lock on the token cache */ |
379 | #ifdef use_pthreads |
380 | pthread_rwlock_unlock( sharedlock ); |
381 | #else |
382 | rw_unlock( sharedlock ); |
383 | #endif |
313dde40 |
384 | |
3f4fda20 |
385 | if ( usecached ) { |
386 | /* release the lock on the token cache */ |
387 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, |
388 | "mod_waklog: set_auth using shared token %d for %s", i, k5user ); |
389 | |
390 | } |
391 | |
392 | /* if this is something that was in the cache, and it's the same as the token we already have stored, |
393 | and we weren't calling this just to renew it... */ |
394 | |
395 | if ( usecached && indentical ) { |
396 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: token is identical for %s", k5user ); |
397 | return 0; |
398 | } |
399 | |
400 | } |
7c53b5d0 |
401 | |
3f4fda20 |
402 | /* if 'usecached' isn't set, we've got to get our tokens from somewhere... */ |
3f4fda20 |
403 | if (( ! usecached ) && ( k5user )) { |
313dde40 |
404 | |
3f4fda20 |
405 | /* clear out the creds structure */ |
406 | memset((void *) &v5creds, 0, sizeof(v5creds)); |
407 | |
408 | /* create a principal out of our k5user string */ |
409 | |
410 | if ( kerror = krb5_parse_name (child.kcontext, k5user, &kprinc ) ) { |
411 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_parse_name %s", (char *) error_message(kerror) ); |
412 | goto cleanup; |
413 | } |
414 | |
415 | /* create the credentials options */ |
416 | |
417 | krb5_get_init_creds_opt_init ( &kopts ); |
418 | krb5_get_init_creds_opt_set_tkt_life ( &kopts, TKT_LIFE ); |
419 | krb5_get_init_creds_opt_set_renew_life ( &kopts, 0 ); |
420 | krb5_get_init_creds_opt_set_forwardable ( &kopts, 0 ); |
421 | krb5_get_init_creds_opt_set_proxiable ( &kopts, 0 ); |
422 | |
423 | if ( keytab ) { |
424 | |
425 | /* if we've been passed a keytab, we're going to be getting our credentials from it */ |
426 | |
427 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: using keytab %s", keytab); |
428 | |
429 | if ( kerror = krb5_kt_resolve(child.kcontext, keytab, &krb5kt ) ) { |
430 | log_error( APLOG_MARK, APLOG_ERR, 0, s, |
431 | "mod_waklog: krb5_kt_resolve %s", error_message(kerror) ); |
432 | goto cleanup; |
433 | } |
434 | |
435 | if ((kerror = krb5_get_init_creds_keytab (child.kcontext, &v5creds, |
436 | kprinc, krb5kt, 0, NULL, &kopts ) ) ) { |
437 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_init_creds_keytab %s", |
438 | error_message(kerror) ); |
439 | goto cleanup; |
440 | } |
441 | |
442 | } else if ( self ) { |
443 | |
444 | /* if 'self' is set, we're going to use the credentials provided in the credential information */ |
445 | /* if you're using CoSign, you'd actually just set the ccache to the KRB5CCNAME credentials */ |
446 | /* and skip ahead... Our WebSSO is lame, but has a way for us to snarf the password out of */ |
447 | /* the encrypted token for proxy-authentication stuff. We only hand out keys that allow this */ |
448 | /* functionality to VERY special people. */ |
449 | |
450 | if ((kerror = krb5_get_init_creds_password ( child.kcontext, &v5creds, |
451 | kprinc, k5secret, NULL, NULL, 0, NULL, &kopts ) ) ) { |
452 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_init_creds_password %s", |
453 | error_message(kerror) ); |
454 | /* nuke the password so it doesn't end up in core files */ |
455 | memset(k5secret, 0, sizeof(k5secret)); |
456 | goto cleanup; |
457 | } |
458 | |
459 | memset(k5secret, 0, sizeof(k5secret)); |
460 | |
461 | } else { |
7c53b5d0 |
462 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: no keytab, no self; assuming mod_auth_kerb or similar"); |
463 | use_client_credentials = 1; |
3f4fda20 |
464 | } |
465 | |
466 | /* initialize the credentials cache and store the stuff we just got */ |
7c53b5d0 |
467 | if (!use_client_credentials) { |
468 | if ( kerror = krb5_cc_initialize (child.kcontext, child.ccache, kprinc)) { |
469 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: init credentials cache %s", |
470 | error_message(kerror)); |
471 | goto cleanup; |
472 | } |
3f4fda20 |
473 | |
7c53b5d0 |
474 | if ( kerror = krb5_cc_store_cred(child.kcontext, child.ccache, &v5creds) ) { |
475 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot store credentials %s", |
476 | error_message(kerror)); |
477 | goto cleanup; |
478 | } |
3f4fda20 |
479 | } |
480 | |
481 | krb5_free_cred_contents(child.kcontext, &v5creds); |
482 | |
483 | if ( kerror ) { |
484 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: store cred %s", error_message(kerror)); |
485 | goto cleanup; |
486 | } |
487 | |
488 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: kinit ok for %s", k5user ); |
489 | |
490 | /* now, to the 'aklog' portion of our program. */ |
491 | |
c8563f50 |
492 | /** we make two attempts here, one for afs@REALM and one for afs/cell@REALM */ |
493 | for(attempt = 0; attempt <= 1; attempt++) { |
98534230 |
494 | strncpy( buf, "afs", sizeof(buf) - 1 ); |
c8563f50 |
495 | cell_in_principal = (cfg->cell_in_principal + attempt) % 2; |
496 | |
497 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: cell_in_principal=%d", cell_in_principal ); |
498 | if (cell_in_principal) { |
98534230 |
499 | strncat(buf, "/", sizeof(buf) - strlen(buf) - 1); |
c8563f50 |
500 | strncat(buf, cfg->afs_cell, sizeof(buf) - strlen(buf) - 1); |
501 | } |
98534230 |
502 | if (cfg->afs_cell_realm != WAKLOG_UNSET) { |
503 | strncat(buf, "@", sizeof(buf) - strlen(buf) - 1); |
504 | strncat(buf, cfg->afs_cell_realm, sizeof(buf) - strlen(buf) - 1); |
505 | } |
c8563f50 |
506 | |
507 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: using AFS principal: %s", buf); |
508 | |
509 | if ((kerror = krb5_parse_name (child.kcontext, buf, &increds.server))) { |
510 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_parse name %s", error_message(kerror)); |
511 | goto cleanup; |
512 | } |
7c53b5d0 |
513 | |
514 | if (use_client_credentials) { |
515 | if (( kerror = krb5_cc_resolve( child.kcontext, k5path, &child.ccache)) != 0 ) { |
516 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_cc_resolve %s", error_message(kerror)); |
517 | goto cleanup; |
518 | } |
519 | } |
c8563f50 |
520 | |
521 | if ((kerror = krb5_cc_get_principal(child.kcontext, child.ccache, &increds.client))) { |
522 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_cc_get_princ %s", error_message(kerror)); |
523 | goto cleanup; |
524 | } |
525 | |
526 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: retrieved data from ccache for %s", k5user); |
527 | |
528 | increds.times.endtime = 0; |
529 | |
530 | increds.keyblock.enctype = ENCTYPE_DES_CBC_CRC; |
531 | |
532 | if (kerror = krb5_get_credentials (child.kcontext, 0, child.ccache, &increds, &v5credsp )) { |
533 | /* only complain once we've tried both afs@REALM and afs/cell@REALM */ |
534 | if (attempt>=1) { |
535 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_credentials: %s", |
536 | error_message(kerror)); |
537 | goto cleanup; |
538 | } else { |
539 | continue; |
540 | } |
541 | } |
542 | cfg->cell_in_principal = cell_in_principal; |
543 | break; |
3f4fda20 |
544 | } |
c8563f50 |
545 | |
3f4fda20 |
546 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: get_credentials passed for %s", k5user); |
547 | |
548 | if ( v5credsp->ticket.length >= MAXKTCTICKETLEN ) { |
549 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: ticket size (%d) too big to fake", |
550 | v5credsp->ticket.length); |
551 | goto cleanup; |
552 | } |
313dde40 |
553 | |
3f4fda20 |
554 | memset(&token, 0, sizeof(struct ktc_token)); |
555 | |
556 | token.startTime = v5credsp->times.starttime ? v5credsp->times.starttime : v5credsp->times.authtime; |
557 | token.endTime = v5credsp->times.endtime; |
558 | |
559 | memmove( &token.sessionKey, v5credsp->keyblock.contents, v5credsp->keyblock.length); |
560 | token.kvno = RXKAD_TKT_TYPE_KERBEROS_V5; |
561 | token.ticketLen = v5credsp->ticket.length; |
562 | memmove( token.ticket, v5credsp->ticket.data, token.ticketLen); |
563 | |
564 | /* build the name */ |
565 | |
566 | memmove( buf, v5credsp->client->data[0].data, min(v5credsp->client->data[0].length, |
567 | MAXKTCNAMELEN -1 )); |
568 | buf[v5credsp->client->data[0].length] = '\0'; |
569 | if ( v5credsp->client->length > 1 ) { |
570 | strncat(buf, ".", sizeof(buf) - strlen(buf) - 1); |
571 | buflen = strlen(buf); |
572 | memmove(buf + buflen, v5credsp->client->data[1].data, |
573 | min(v5credsp->client->data[1].length, |
574 | MAXKTCNAMELEN - strlen(buf) - 1)); |
575 | buf[buflen + v5credsp->client->data[1].length] = '\0'; |
576 | } |
577 | |
578 | /* assemble the client */ |
579 | strncpy(client.name, buf, sizeof(client.name) - 1 ); |
580 | strncpy(client.instance, "", sizeof(client.instance) - 1 ); |
581 | memmove(buf, v5credsp->client->realm.data, min(v5credsp->client->realm.length, |
582 | MAXKTCNAMELEN - 1)); |
583 | buf[v5credsp->client->realm.length] = '\0'; |
584 | strncpy(client.cell, buf, sizeof(client.cell)); |
585 | |
586 | /* assemble the server's cell */ |
891fb458 |
587 | strncpy(server.cell, cfg->afs_cell, sizeof(server.cell) - 1); |
3f4fda20 |
588 | |
589 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: preparing to init PTS connection for %s", server.cell); |
590 | |
591 | /* fill out the AFS ID in the client name */ |
592 | /* we've done a pr_Initialize in the child_init -- once, per process. If you try to do it more |
593 | * strange things seem to happen. */ |
594 | |
595 | { |
596 | afs_int32 viceId = 0; |
597 | |
598 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: making PTS call to look up %s", client.name); |
599 | |
600 | if ( ( rc = pr_SNameToId( client.name, &viceId ) ) == 0 ) { |
601 | snprintf( client.name, sizeof(client.name), "AFS ID %d", viceId ); |
602 | } else { |
603 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: PTS call returned error %d ", rc); |
604 | } |
605 | |
606 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: PTS call returned %s ", client.name); |
607 | |
608 | } |
609 | |
610 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: server: name %s, instance %s, cell %s", |
611 | server.name, server.instance, server.cell ); |
612 | |
613 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: client: name %s, instance %s, cell %s", |
614 | client.name, client.instance, client.cell ); |
615 | |
616 | /* copy the resulting stuff into the child structure */ |
617 | |
618 | strncpy(child.clientprincipal, k5user, sizeof(child.clientprincipal)); |
619 | memcpy(&child.token, &token, sizeof(child.token)); |
620 | memcpy(&child.server, &server, sizeof(child.server)); |
621 | memcpy(&child.client, &client, sizeof(child.client)); |
622 | |
623 | /* stuff the resulting token-related stuff into our shared token cache */ |
624 | /* note, that anything that was set from a keytab is "persistant", and is immune |
625 | * from LRU-aging. This is because nothing but the process that's running as root |
626 | * can update these, and it's running every hour or so and renewing these tokens. |
627 | * and we don't want them aged out. |
628 | */ |
629 | |
630 | mytime = oldest_time = time(0); |
631 | |
632 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: waiting for shared space for %s ", k5user); |
4e1ae1cd |
633 | |
3f4fda20 |
634 | #ifdef use_pthreads |
635 | pthread_rwlock_wrlock(sharedlock); |
636 | #else |
637 | rw_wrlock(sharedlock); |
638 | #endif |
4e1ae1cd |
639 | |
3f4fda20 |
640 | for( i = ( SHARED_TABLE_SIZE - 1 ); i >= 0; i-- ) { |
641 | if ( ( sharedspace->sharedtokens[i].lastused <= oldest_time) && |
642 | ( sharedspace->sharedtokens[i].persist == 0 ) ) { |
643 | oldest = i; |
644 | oldest_time = sharedspace->sharedtokens[i].lastused; |
645 | } |
646 | if ( ! strcmp ( sharedspace->sharedtokens[i].clientprincipal, |
647 | child.clientprincipal ) ) { |
648 | memcpy(&sharedspace->sharedtokens[i].token, &child.token, sizeof(child.token) ); |
649 | memcpy(&sharedspace->sharedtokens[i].client, &child.client, sizeof(child.client) ); |
650 | memcpy(&sharedspace->sharedtokens[i].server, &child.server, sizeof(child.server) ); |
651 | sharedspace->sharedtokens[i].lastused = mytime; |
652 | sharedspace->sharedtokens[i].persist = keytab ? 1 : 0; |
653 | stored = i; |
654 | break; |
655 | } |
656 | } |
657 | |
658 | if ( stored == -1 ) { |
659 | memcpy(&sharedspace->sharedtokens[oldest].token, &child.token, sizeof(child.token) ); |
660 | memcpy(&sharedspace->sharedtokens[oldest].client, &child.client, sizeof(child.client) ); |
661 | memcpy(&sharedspace->sharedtokens[oldest].server, &child.server, sizeof(child.server) ); |
662 | strcpy(sharedspace->sharedtokens[oldest].clientprincipal, child.clientprincipal ); |
663 | sharedspace->sharedtokens[oldest].lastused = mytime; |
664 | sharedspace->sharedtokens[oldest].persist = keytab ? 1 : 0; |
665 | stored = oldest; |
666 | } |
3ed1e28a |
667 | |
3f4fda20 |
668 | #ifdef use_pthreads |
669 | pthread_rwlock_unlock(sharedlock); |
670 | #else |
671 | rw_unlock(sharedlock); |
672 | #endif |
673 | |
674 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: token stored in slot %d for %s", stored, |
675 | child.clientprincipal ); |
676 | |
677 | } else if ( ! usecached ) { |
678 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth divergent case"); |
679 | } |
680 | |
681 | if ( storeonly ) { |
682 | goto cleanup; |
683 | } |
684 | |
685 | usecachedtoken: |
686 | |
687 | /* don't ask. Something about AIX. We're leaving it here.*/ |
688 | /* write(2, "", 0); */ |
689 | |
690 | /* we try twice, because sometimes the first one fails. Dunno why, but it always works the second time */ |
691 | |
692 | if ((rc = ktc_SetToken(&child.server, &child.token, &child.client, 0))) { |
693 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: settoken returned %s for %s -- trying again", |
694 | error_message(rc), k5user); |
695 | if ((rc = ktc_SetToken(&child.server, &child.token, &child.client, 0))) { |
696 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: settoken2 returned %s for %s", |
697 | error_message(rc), k5user); |
698 | goto cleanup; |
699 | } |
700 | } |
701 | |
702 | cleanup: |
703 | if ( v5credsp ) |
704 | krb5_free_cred_contents(child.kcontext, v5credsp); |
705 | if ( increds.client ) |
706 | krb5_free_principal (child.kcontext, increds.client); |
707 | if ( increds.server ) |
708 | krb5_free_principal (child.kcontext, increds.server); |
709 | if ( krb5kt ) |
710 | (void) krb5_kt_close(child.kcontext, krb5kt); |
711 | if ( kprinc ) |
712 | krb5_free_principal (child.kcontext, kprinc); |
713 | |
714 | if ( rc ) { |
715 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth ending with %d", rc ); |
716 | } else if ( kerror ) { |
717 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth ending with krb5 error %d, %s", kerror, error_message(kerror)); |
718 | } else { |
719 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth ending ok"); |
720 | } |
721 | |
722 | return kerror ? (int) kerror : (int) rc; |
723 | |
4e1ae1cd |
724 | } |
725 | |
726 | |
7193eb01 |
727 | |
3f4fda20 |
728 | static void * |
729 | waklog_create_server_config (MK_POOL * p, server_rec * s) |
730 | { |
731 | waklog_config *cfg; |
732 | |
733 | cfg = (waklog_config *) ap_pcalloc (p, sizeof (waklog_config)); |
734 | cfg->p = p; |
735 | memset(cfg, 0, sizeof(waklog_config)); |
736 | cfg->path = "(server)"; |
737 | cfg->protect = WAKLOG_UNSET; |
738 | cfg->usertokens = WAKLOG_UNSET; |
21a7788b |
739 | cfg->disable_token_cache = WAKLOG_UNSET; |
3f4fda20 |
740 | cfg->keytab = WAKLOG_UNSET; |
741 | cfg->principal = WAKLOG_UNSET; |
742 | cfg->default_principal = WAKLOG_UNSET; |
743 | cfg->default_keytab = WAKLOG_UNSET; |
744 | cfg->afs_cell = WAKLOG_UNSET; |
98534230 |
745 | cfg->afs_cell_realm = WAKLOG_UNSET; |
3f4fda20 |
746 | cfg->forked = 0; |
747 | cfg->configured = 0; |
748 | |
749 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
750 | "mod_waklog: server config created."); |
3f4fda20 |
751 | |
752 | return (cfg); |
753 | } |
7193eb01 |
754 | |
3f4fda20 |
755 | /* initialize with host-config information */ |
58bbdc54 |
756 | |
3f4fda20 |
757 | static void * |
758 | waklog_create_dir_config (MK_POOL * p, char *dir) |
759 | { |
760 | waklog_config *cfg; |
761 | |
762 | cfg = (waklog_config *) ap_pcalloc (p, sizeof (waklog_config)); |
763 | memset(cfg, 0, sizeof(waklog_config)); |
764 | cfg->p = p; |
765 | cfg->path = ap_pstrdup(p, dir ); |
766 | cfg->protect = WAKLOG_UNSET; |
767 | cfg->usertokens = WAKLOG_UNSET; |
21a7788b |
768 | cfg->disable_token_cache = WAKLOG_UNSET; |
3f4fda20 |
769 | cfg->keytab = WAKLOG_UNSET; |
770 | cfg->principal = WAKLOG_UNSET; |
771 | cfg->default_principal = WAKLOG_UNSET; |
772 | cfg->default_keytab = WAKLOG_UNSET; |
773 | cfg->afs_cell = WAKLOG_UNSET; |
98534230 |
774 | cfg->afs_cell_realm = WAKLOG_UNSET; |
3f4fda20 |
775 | cfg->forked = 0; |
776 | cfg->configured = 0; |
777 | |
778 | return (cfg); |
58bbdc54 |
779 | } |
780 | |
3f4fda20 |
781 | static void *waklog_merge_dir_config(MK_POOL *p, void *parent_conf, void *newloc_conf) { |
58bbdc54 |
782 | |
3f4fda20 |
783 | waklog_config *merged = ( waklog_config * ) ap_pcalloc(p, sizeof(waklog_config ) ); |
784 | waklog_config *parent = ( waklog_config * ) parent_conf; |
785 | waklog_config *child = ( waklog_config * ) newloc_conf; |
786 | |
787 | merged->protect = child->protect != WAKLOG_UNSET ? child->protect : parent->protect; |
788 | |
789 | merged->path = child->path != WAKLOG_UNSET ? child->path : parent->path; |
790 | |
791 | merged->usertokens = child->usertokens != WAKLOG_UNSET ? child->usertokens : parent->usertokens; |
21a7788b |
792 | |
793 | merged->disable_token_cache = child->disable_token_cache != WAKLOG_UNSET ? child->disable_token_cache : parent->disable_token_cache; |
3f4fda20 |
794 | |
795 | merged->principal = child->principal != WAKLOG_UNSET ? child->principal : parent->principal; |
796 | |
797 | merged->keytab = child->keytab != WAKLOG_UNSET ? child->keytab : parent->keytab; |
798 | |
799 | merged->default_keytab = child->default_keytab != WAKLOG_UNSET ? child->default_keytab : parent->default_keytab; |
800 | |
801 | merged->default_principal = child->default_principal != WAKLOG_UNSET ? child->default_principal : parent->default_principal; |
802 | |
803 | merged->afs_cell = child->afs_cell != WAKLOG_UNSET ? child->afs_cell : parent->afs_cell; |
98534230 |
804 | |
805 | merged->afs_cell_realm = child->afs_cell_realm != WAKLOG_UNSET ? child->afs_cell_realm : parent->afs_cell_realm; |
3f4fda20 |
806 | |
807 | return (void *) merged; |
808 | |
809 | } |
58bbdc54 |
810 | |
3f4fda20 |
811 | static void *waklog_merge_server_config(MK_POOL *p, void *parent_conf, void *newloc_conf) { |
58bbdc54 |
812 | |
3f4fda20 |
813 | waklog_config *merged = ( waklog_config * ) ap_pcalloc(p, sizeof(waklog_config ) ); |
814 | waklog_config *pconf = ( waklog_config * ) parent_conf; |
815 | waklog_config *nconf = ( waklog_config * ) newloc_conf; |
816 | |
817 | merged->protect = nconf->protect == WAKLOG_UNSET ? pconf->protect : nconf->protect; |
58bbdc54 |
818 | |
3f4fda20 |
819 | merged->usertokens = nconf->usertokens == WAKLOG_UNSET ? pconf->usertokens : nconf->usertokens; |
58bbdc54 |
820 | |
bce7d4d9 |
821 | merged->disable_token_cache = nconf->disable_token_cache == WAKLOG_UNSET ? pconf->disable_token_cache : nconf->disable_token_cache; |
21a7788b |
822 | |
3f4fda20 |
823 | merged->keytab = nconf->keytab == WAKLOG_UNSET ? ap_pstrdup(p, pconf->keytab) : |
824 | ( nconf->keytab == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->keytab) ); |
825 | |
826 | merged->principal = nconf->principal == WAKLOG_UNSET ? ap_pstrdup(p, pconf->principal) : |
827 | ( nconf->principal == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->principal) ); |
828 | |
829 | merged->afs_cell = nconf->afs_cell == WAKLOG_UNSET ? ap_pstrdup(p, pconf->afs_cell) : |
830 | ( nconf->afs_cell == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->afs_cell) ); |
831 | |
98534230 |
832 | merged->afs_cell_realm = nconf->afs_cell_realm == WAKLOG_UNSET ? ap_pstrdup(p, pconf->afs_cell_realm) : |
833 | ( nconf->afs_cell_realm == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->afs_cell_realm) ); |
834 | |
3f4fda20 |
835 | merged->default_keytab = nconf->default_keytab == WAKLOG_UNSET ? ap_pstrdup(p, pconf->default_keytab) : |
836 | ( nconf->default_keytab == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->default_keytab) ); |
58bbdc54 |
837 | |
3f4fda20 |
838 | merged->default_principal = nconf->default_principal == WAKLOG_UNSET ? ap_pstrdup(p, pconf->default_principal) : |
839 | ( nconf->default_principal == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->default_principal) ); |
840 | |
841 | |
842 | return (void *) merged; |
843 | |
844 | } |
845 | |
846 | static const char * |
21a7788b |
847 | set_waklog_enabled (cmd_parms * params, void *mconfig, int flag) |
58bbdc54 |
848 | { |
3f4fda20 |
849 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
850 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
851 | |
852 | cfg->protect = flag; |
853 | cfg->configured = 1; |
854 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
21a7788b |
855 | "mod_waklog: waklog_enabled set on %s", cfg->path ? cfg->path : "NULL"); |
3f4fda20 |
856 | return (NULL); |
857 | } |
58bbdc54 |
858 | |
7193eb01 |
859 | |
3f4fda20 |
860 | /* this adds a principal/keytab pair to get their tokens renewed by the |
861 | child process every few centons. */ |
7193eb01 |
862 | |
3f4fda20 |
863 | void add_to_renewtable(MK_POOL *p, char *keytab, char *principal) { |
87822447 |
864 | |
3f4fda20 |
865 | int i; |
866 | |
867 | if ( renewcount >= SHARED_TABLE_SIZE ) { |
868 | log_error(APLOG_MARK, APLOG_DEBUG, 0, NULL, "mod_waklog: big problem. Increase the SHARED_TABLE_SIZE or \ |
869 | decrease your tokens."); |
b74fad73 |
870 | return; |
3f4fda20 |
871 | } |
872 | |
873 | /* check to see if it's already there */ |
874 | |
875 | for ( i = 0; i < renewcount; i++ ) { |
876 | if ( ! strcmp(renewtable[i].principal, principal ) ) { |
877 | return; |
878 | } |
879 | } |
880 | |
881 | renewtable[renewcount].keytab = ap_pstrdup(p, keytab); |
882 | renewtable[renewcount].principal = ap_pstrdup(p, principal); |
883 | renewtable[renewcount].lastrenewed = 0; |
884 | ++renewcount; |
885 | |
b74fad73 |
886 | } |
887 | |
3f4fda20 |
888 | static const char * |
21a7788b |
889 | set_waklog_location_principal (cmd_parms *params, void *mconfig, char *principal, char *keytab) |
3f4fda20 |
890 | { |
891 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
892 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
893 | |
894 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
895 | "mod_waklog: configuring principal: %s, keytab: %s", principal, keytab); |
896 | |
897 | cfg->principal = ap_pstrdup(params->pool, principal); |
3f4fda20 |
898 | cfg->keytab = ap_pstrdup (params->pool, keytab); |
899 | |
900 | add_to_renewtable(params->pool, keytab, principal); |
901 | |
902 | cfg->configured = 1; |
903 | |
904 | return (NULL); |
905 | } |
b74fad73 |
906 | |
3f4fda20 |
907 | static const char * |
21a7788b |
908 | set_waklog_afs_cell (cmd_parms * params, void *mconfig, char *file) |
313dde40 |
909 | { |
891fb458 |
910 | waklog_config *waklog_mconfig = ( waklog_config * ) mconfig; |
911 | waklog_config *waklog_srvconfig = |
3f4fda20 |
912 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
913 | |
891fb458 |
914 | log_error (APLOG_MARK, APLOG_INFO, 0, params->server, |
42d78dfb |
915 | "mod_waklog: will use afs_cell: %s", file); |
313dde40 |
916 | |
c8563f50 |
917 | waklog_srvconfig->cell_in_principal = 0; |
891fb458 |
918 | waklog_srvconfig->afs_cell = ap_pstrdup (params->pool, file); |
919 | waklog_srvconfig->configured = 1; |
920 | |
921 | if (waklog_mconfig != NULL) { |
c8563f50 |
922 | waklog_mconfig->cell_in_principal = waklog_srvconfig->cell_in_principal; |
891fb458 |
923 | waklog_mconfig->afs_cell = ap_pstrdup (params->pool, file); |
924 | waklog_mconfig->configured = 1; |
925 | } |
3f4fda20 |
926 | return (NULL); |
927 | } |
58bbdc54 |
928 | |
98534230 |
929 | static const char * |
930 | set_waklog_afs_cell_realm (cmd_parms * params, void *mconfig, char *file) |
931 | { |
932 | waklog_config *waklog_mconfig = ( waklog_config * ) mconfig; |
933 | waklog_config *waklog_srvconfig = |
934 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
935 | |
936 | log_error (APLOG_MARK, APLOG_INFO, 0, params->server, |
937 | "mod_waklog: will use afs_cell_realm: %s", file); |
938 | |
939 | waklog_srvconfig->afs_cell_realm = ap_pstrdup (params->pool, file); |
940 | |
941 | if (waklog_mconfig != NULL) { |
942 | waklog_mconfig->afs_cell_realm = ap_pstrdup (params->pool, file); |
943 | } |
944 | return (NULL); |
945 | } |
946 | |
3f4fda20 |
947 | static const char * |
948 | set_waklog_default_principal (cmd_parms * params, void *mconfig, char *principal, char *keytab) |
949 | { |
950 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
951 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
58bbdc54 |
952 | |
3f4fda20 |
953 | waklog_config *srvcfg = ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
4e1ae1cd |
954 | |
3f4fda20 |
955 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
956 | "mod_waklog: set default princ/keytab: %s, %s for %s", principal, keytab, cfg->path ? cfg->path : "NULL"); |
313dde40 |
957 | |
3f4fda20 |
958 | cfg->default_principal = ap_pstrdup (params->pool, principal); |
959 | cfg->default_keytab = ap_pstrdup(params->pool, keytab ); |
960 | |
961 | /* this also gets set at the server level */ |
962 | if ( mconfig && ( ! cfg->path ) ) { |
963 | srvcfg->default_principal = ap_pstrdup (params->pool, principal); |
964 | srvcfg->default_keytab = ap_pstrdup(params->pool, keytab ); |
965 | } else { |
966 | log_error(APLOG_MARK, APLOG_ERR, 0, params->server, "only able to set default principal on a global level!"); |
967 | return "Unable to set DefaultPrincipal outside of top level config!"; |
968 | } |
969 | |
970 | add_to_renewtable( params->pool, keytab, principal ); |
971 | |
972 | cfg->configured = 1; |
973 | |
974 | return (NULL); |
975 | } |
313dde40 |
976 | |
3f4fda20 |
977 | static const char * |
978 | set_waklog_use_usertokens (cmd_parms * params, void *mconfig, int flag) |
bed98ff9 |
979 | { |
3f4fda20 |
980 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
981 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
bed98ff9 |
982 | |
3f4fda20 |
983 | cfg->usertokens = flag; |
bed98ff9 |
984 | |
3f4fda20 |
985 | cfg->configured = 1; |
bed98ff9 |
986 | |
3f4fda20 |
987 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
988 | "mod_waklog: waklog_use_user_tokens set"); |
3f4fda20 |
989 | return (NULL); |
bed98ff9 |
990 | } |
991 | |
992 | |
21a7788b |
993 | static const char * |
994 | set_waklog_disable_token_cache (cmd_parms * params, void *mconfig, int flag) |
995 | { |
996 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
997 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
998 | |
999 | cfg->disable_token_cache = flag; |
1000 | |
1001 | cfg->configured = 1; |
1002 | |
1003 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
1004 | "mod_waklog: waklog_disable_token_cache set"); |
1005 | return (NULL); |
1006 | } |
1007 | |
1008 | |
c9d59a9c |
1009 | #ifndef APACHE2 |
3f4fda20 |
1010 | static void waklog_child_exit( server_rec *s, MK_POOL *p ) { |
1011 | #else |
1012 | apr_status_t waklog_child_exit( void *sr ) { |
4e1ae1cd |
1013 | |
3f4fda20 |
1014 | server_rec *s = (server_rec *) sr; |
1015 | #endif |
1016 | |
1017 | if ( child.ccache ) { |
1018 | krb5_cc_close(child.kcontext, child.ccache); |
1019 | } |
1020 | |
1021 | if ( child.kcontext ) { |
1022 | krb5_free_context(child.kcontext); |
1023 | } |
1024 | |
1025 | /* forget our tokens */ |
1026 | |
1027 | ktc_ForgetAllTokens (); |
1028 | |
1029 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1030 | "mod_waklog: waklog_child_exit complete"); |
4e1ae1cd |
1031 | |
c9d59a9c |
1032 | #ifdef APACHE2 |
3f4fda20 |
1033 | return APR_SUCCESS; |
1034 | #endif |
1035 | |
1036 | } |
4e1ae1cd |
1037 | |
3f4fda20 |
1038 | static void |
c9d59a9c |
1039 | #ifdef APACHE2 |
3f4fda20 |
1040 | waklog_child_init (MK_POOL * p, server_rec * s) |
1041 | #else |
1042 | waklog_child_init (server_rec * s, MK_POOL * p) |
1043 | #endif |
1044 | { |
b52ccbb1 |
1045 | |
3f4fda20 |
1046 | krb5_error_code code; |
1047 | waklog_config *cfg; |
1048 | |
1049 | char *cell; |
1050 | |
3f4fda20 |
1051 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init called for pid %d", getpid()); |
1052 | |
1053 | if ( !sharedspace ) { |
1054 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: child_init called without shared space? %d", getpid()); |
1055 | return; |
1056 | } |
1057 | |
1058 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init called for pid %d", getpid()); |
7193eb01 |
1059 | |
3f4fda20 |
1060 | memset (&child, 0, sizeof(child)); |
1061 | |
1062 | if ( code = krb5_init_context(&child.kcontext) ) { |
1063 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't init kerberos context %d", code ); |
1064 | } |
1065 | |
1066 | if ( code = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) { |
1067 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", code ); |
1068 | } |
1069 | |
1070 | if ( pag_for_children ) { |
1071 | setpag (); |
1072 | } |
7193eb01 |
1073 | |
3f4fda20 |
1074 | getModConfig (cfg, s); |
7193eb01 |
1075 | |
3f4fda20 |
1076 | if ( cfg->default_principal != WAKLOG_UNSET ) { |
1077 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init setting default user %s, %s", cfg->default_principal, cfg->default_keytab); |
1078 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1079 | } |
7193eb01 |
1080 | |
891fb458 |
1081 | cell = strdup(cfg->afs_cell); |
3f4fda20 |
1082 | pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR, cell ); |
7193eb01 |
1083 | |
c9d59a9c |
1084 | #ifdef APACHE2 |
3f4fda20 |
1085 | apr_pool_cleanup_register(p, s, waklog_child_exit, apr_pool_cleanup_null); |
1086 | #endif |
7193eb01 |
1087 | |
3f4fda20 |
1088 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1089 | "mod_waklog: child_init returned"); |
7193eb01 |
1090 | |
3f4fda20 |
1091 | return; |
1092 | } |
b52ccbb1 |
1093 | |
3f4fda20 |
1094 | command_rec waklog_cmds[] = { |
1095 | |
21a7788b |
1096 | command ("WaklogAFSCell", set_waklog_afs_cell, 0, TAKE1, |
1097 | "Use the supplied AFS cell (required)"), |
7193eb01 |
1098 | |
98534230 |
1099 | command ("WaklogAFSCellRealm", set_waklog_afs_cell_realm, 0, TAKE1, |
1100 | "Assume that the AFS cell belongs to the specified Kerberos realm (optional)"), |
1101 | |
21a7788b |
1102 | command ("WaklogEnabled", set_waklog_enabled, 0, FLAG, |
1103 | "enable waklog on a server, location, or directory basis"), |
7193eb01 |
1104 | |
21a7788b |
1105 | command ("WaklogDefaultPrincipal", set_waklog_default_principal, 0, TAKE2, |
1106 | "Set the default principal that the server runs as"), |
7193eb01 |
1107 | |
21a7788b |
1108 | command ("WaklogLocationPrincipal", set_waklog_location_principal, 0, TAKE2, |
1109 | "Set the principal on a <Location>-specific basis"), |
7193eb01 |
1110 | |
21a7788b |
1111 | command ("WaklogDisableTokenCache", set_waklog_disable_token_cache, 0, FLAG, |
1112 | "Ignore the token cache (location-specific); useful for scripts that need kerberos tickets."), |
1113 | |
1114 | command ("WaklogUseUserTokens", set_waklog_use_usertokens, 0, FLAG, |
1115 | "Use the requesting user tokens (from webauth)"), |
1116 | |
3f4fda20 |
1117 | {NULL} |
1118 | }; |
7193eb01 |
1119 | |
7193eb01 |
1120 | |
3f4fda20 |
1121 | /* not currently using this */ |
7193eb01 |
1122 | |
3f4fda20 |
1123 | static int |
1124 | token_cleanup (void *data) |
1125 | { |
1126 | request_rec *r = (request_rec *) data; |
e2df6441 |
1127 | |
3f4fda20 |
1128 | if (child.token.ticketLen) |
1129 | { |
1130 | memset (&child.token, 0, sizeof (struct ktc_token)); |
e21f34f0 |
1131 | |
3f4fda20 |
1132 | ktc_ForgetAllTokens (); |
7193eb01 |
1133 | |
3f4fda20 |
1134 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1135 | "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", |
1136 | getpid ()); |
3f4fda20 |
1137 | } |
1138 | return 0; |
7193eb01 |
1139 | } |
1140 | |
3f4fda20 |
1141 | static int |
1142 | waklog_child_routine (void *data, child_info * pinfo) |
7193eb01 |
1143 | { |
3f4fda20 |
1144 | int i; |
1145 | server_rec *s = (server_rec *) data; |
1146 | krb5_error_code code; |
1147 | char *cell; |
1148 | time_t sleep_time = ( TKT_LIFE / 2 ) ; |
1149 | time_t when; |
1150 | time_t left; |
1151 | waklog_config *cfg; |
1152 | |
1153 | getModConfig( cfg, s ); |
1154 | |
1155 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: waklog_child_routine started, running as %d", getuid()); |
1156 | |
1157 | memset (&child, 0, sizeof(child)); |
1158 | |
1159 | if ( code = krb5_init_context(&child.kcontext) ) { |
1160 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't init kerberos context %d", code ); |
1161 | } |
1162 | |
1163 | if ( code = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) { |
1164 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", code ); |
1165 | } |
1166 | |
1167 | /* need to do this so we can make PTS calls */ |
891fb458 |
1168 | cell = strdup(cfg->afs_cell); /* stupid */ |
3f4fda20 |
1169 | pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR, cell ); |
1170 | |
1171 | while(1) { |
1172 | |
1173 | for ( i = 0; i < renewcount; ++i ) { |
1174 | renewtable[i].lastrenewed = time(0); |
1175 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: (pid %d) renewing %s / %s", getpid(), renewtable[i].principal, |
1176 | renewtable[i].keytab); |
1177 | |
1178 | set_auth( s, NULL, 0, renewtable[i].principal, renewtable[i].keytab, 1 ); |
1179 | |
1180 | /* if this is our default token, we want to "stash" it in our current PAG so the parent maintains readability of |
1181 | things that it needs to read */ |
1182 | |
1183 | if ( cfg && cfg->default_principal && ( ! strcmp(cfg->default_principal, renewtable[i].principal ) ) ) { |
1184 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: renewing/setting default tokens" ); |
1185 | set_auth( s, NULL, 0, renewtable[i].principal, renewtable[i].keytab, 0 ); |
1186 | } |
1187 | |
4e1ae1cd |
1188 | } |
1189 | |
3f4fda20 |
1190 | sharedspace->renewcount++; |
1191 | |
1192 | left = sleep_time; |
1193 | |
1194 | while( left > 5 ) { |
1195 | when = time(0); |
1196 | |
1197 | sleep(left); |
1198 | |
1199 | left -= ( time(0) - when ); |
4e1ae1cd |
1200 | } |
3f4fda20 |
1201 | |
1202 | } |
4e1ae1cd |
1203 | |
3f4fda20 |
1204 | pr_End(); |
403921ef |
1205 | |
3f4fda20 |
1206 | } |
4e1ae1cd |
1207 | |
c9d59a9c |
1208 | #ifdef APACHE2 |
3f4fda20 |
1209 | static int |
1210 | waklog_init_handler (apr_pool_t * p, apr_pool_t * plog, |
42d78dfb |
1211 | apr_pool_t * ptemp, server_rec * s) |
3f4fda20 |
1212 | { |
1213 | int rv; |
1214 | extern char *version; |
1215 | apr_proc_t *proc; |
1216 | waklog_config *cfg; |
1217 | void *data; |
1218 | int fd = -1; |
1219 | int use_existing = 1; |
1220 | int oldrenewcount; |
1221 | char cache_file[MAXNAMELEN]; |
1222 | #ifdef use_pthreads |
1223 | pthread_rwlockattr_t rwlock_attr; |
1224 | #endif |
4e1ae1cd |
1225 | |
1226 | |
3f4fda20 |
1227 | getModConfig (cfg, s); |
4e1ae1cd |
1228 | |
3f4fda20 |
1229 | /* initialize_module() will be called twice, and if it's a DSO |
1230 | * then all static data from the first call will be lost. Only |
1231 | * set up our static data on the second call. |
1232 | * see http://issues.apache.org/bugzilla/show_bug.cgi?id=37519 */ |
1233 | apr_pool_userdata_get (&data, userdata_key, s->process->pool); |
7193eb01 |
1234 | |
891fb458 |
1235 | |
1236 | if (cfg->afs_cell==NULL) { |
1237 | log_error (APLOG_MARK, APLOG_ERR, 0, s, |
21a7788b |
1238 | "mod_waklog: afs_cell==NULL; please provide the WaklogAFSCell directive"); |
891fb458 |
1239 | /** clobber apache */ |
1240 | exit(-1); |
1241 | } |
1242 | |
3f4fda20 |
1243 | if (!data) |
1244 | { |
1245 | apr_pool_userdata_set ((const void *) 1, userdata_key, |
42d78dfb |
1246 | apr_pool_cleanup_null, s->process->pool); |
4e1ae1cd |
1247 | } |
3f4fda20 |
1248 | else |
1249 | { |
1250 | log_error (APLOG_MARK, APLOG_INFO, 0, s, |
891fb458 |
1251 | "mod_waklog: version %s initialized for cell %s", version, cfg->afs_cell); |
3f4fda20 |
1252 | |
1253 | if ( sharedspace ) { |
1254 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: shared memory already allocated." ); |
1255 | } else { |
1256 | |
1257 | snprintf( cache_file, MAXNAMELEN, "/tmp/waklog_cache.%d", getpid() ); |
1258 | |
1259 | if ( ( fd = open( cache_file, O_RDWR, 0600 ) ) == -1 ) { |
1260 | |
1261 | if ( errno == ENOENT ) { |
1262 | |
1263 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: creating shared token cache file %s", cache_file ); |
1264 | use_existing = 0; |
1265 | if ( ( fd = open( cache_file, O_RDWR|O_CREAT|O_TRUNC, 0600 ) ) == -1 ) { |
1266 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file, errno ); |
1267 | exit(errno); |
1268 | } |
1269 | } else { |
1270 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file, errno ); |
1271 | } |
1272 | } |
1273 | |
1274 | if ( use_existing == 0 ) { |
1275 | struct sharedspace_s bob; |
1276 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: sizing our cache file %d to %d", fd, sizeof(struct sharedspace_s) ); |
1277 | memset( &bob, 0, sizeof(struct sharedspace_s)); |
1278 | write(fd, &bob, sizeof(struct sharedspace_s)); |
1279 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s) ); |
1280 | } |
1281 | |
1282 | /* mmap the region */ |
1283 | |
1284 | if ( ( sharedspace = (struct sharedspace_s *) mmap ( NULL, sizeof(struct sharedspace_s), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0 ) ) != MAP_FAILED ) { |
1285 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared mmap region ok %d", sharedspace ); |
1286 | close(fd); |
1287 | } else { |
1288 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: mmap failed %d", errno ); |
1289 | exit(errno); |
1290 | } |
1291 | } |
4e1ae1cd |
1292 | |
3f4fda20 |
1293 | #ifdef use_pthreads |
1294 | #define locktype pthread_rwlock_t |
1295 | #else |
1296 | #define locktype rwlock_t |
1297 | #endif |
4e1ae1cd |
1298 | |
3f4fda20 |
1299 | if ( sharedlock = ( locktype * ) mmap ( NULL, sizeof(locktype), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0 ) ) { |
1300 | #ifndef use_pthreads |
1301 | rwlock_init(sharedlock, USYNC_PROCESS, NULL ); |
1302 | #else |
1303 | pthread_rwlockattr_init(&rwlock_attr); |
1304 | pthread_rwlockattr_setpshared(&rwlock_attr, PTHREAD_PROCESS_SHARED); |
1305 | pthread_rwlock_init(sharedlock, &rwlock_attr ); |
1306 | #endif |
1307 | } else { |
1308 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: rwlock mmap failed %d", errno ); |
1309 | } |
58bbdc54 |
1310 | |
3f4fda20 |
1311 | #undef locktype |
7193eb01 |
1312 | |
3f4fda20 |
1313 | /* set our default tokens */ |
403921ef |
1314 | |
3f4fda20 |
1315 | oldrenewcount = sharedspace->renewcount; |
7193eb01 |
1316 | |
3f4fda20 |
1317 | pag_for_children = 0; |
7193eb01 |
1318 | |
3f4fda20 |
1319 | proc = (apr_proc_t *) ap_pcalloc (s->process->pool, sizeof (apr_proc_t)); |
7193eb01 |
1320 | |
3f4fda20 |
1321 | rv = apr_proc_fork (proc, s->process->pool); |
7193eb01 |
1322 | |
3f4fda20 |
1323 | if (rv == APR_INCHILD) |
42d78dfb |
1324 | { |
1325 | waklog_child_routine (s, NULL); |
1326 | } |
3f4fda20 |
1327 | else |
42d78dfb |
1328 | { |
1329 | apr_pool_note_subprocess (s->process->pool, proc, APR_KILL_ALWAYS); |
1330 | } |
3f4fda20 |
1331 | /* parent and child */ |
1332 | cfg->forked = proc->pid; |
1333 | pag_for_children = 1; |
1334 | |
1335 | if ( use_existing == 0 ) { |
1336 | /* wait here until our child process has gone and done it's renewing thing. */ |
1337 | while( sharedspace->renewcount == oldrenewcount ) { |
1338 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: waiting for tokens..." ); |
1339 | sleep(2); |
1340 | } |
1341 | } |
1342 | |
1343 | if ( cfg->default_principal ) { |
1344 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1345 | } |
1346 | } |
1347 | return 0; |
1348 | } |
ebb1f61c |
1349 | #else |
3f4fda20 |
1350 | static void |
1351 | waklog_init (server_rec * s, MK_POOL * p) |
1352 | { |
1353 | extern char *version; |
1354 | int pid; |
1355 | waklog_config *cfg; |
1356 | char *cell; |
1357 | int fd = -1; |
1358 | int use_existing = 1; |
1359 | int oldrenewcount; |
1360 | char cache_file[MAXNAMELEN]; |
1361 | #ifdef use_pthreads |
1362 | pthread_rwlockattr_t rwlock_attr; |
ebb1f61c |
1363 | #endif |
7193eb01 |
1364 | |
3f4fda20 |
1365 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1366 | "mod_waklog: version %s initialized.", version); |
7193eb01 |
1367 | |
3f4fda20 |
1368 | if ( sharedspace ) { |
1369 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: shared memory already allocated." ); |
1370 | } else { |
1371 | |
1372 | snprintf( cache_file, MAXNAMELEN, "/tmp/waklog_cache.%d", getpid() ); |
1373 | |
1374 | if ( ( fd = open( cache_file, O_RDWR, 0600 ) ) == -1 ) { |
1375 | |
1376 | if ( errno == ENOENT ) { |
1377 | |
1378 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: creating shared token cache file %s", cache_file ); |
1379 | use_existing = 0; |
1380 | if ( ( fd = open( cache_file, O_RDWR|O_CREAT|O_TRUNC, 0600 ) ) == -1 ) { |
1381 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file, errno ); |
1382 | exit(errno); |
1383 | } |
1384 | } else { |
1385 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file, errno ); |
1386 | } |
1387 | |
1388 | } |
1389 | |
1390 | if ( use_existing == 0 ) { |
1391 | struct sharedspace_s bob; |
1392 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: sizing our cache file %d to %d", fd, sizeof(struct sharedspace_s) ); |
1393 | memset( &bob, 0, sizeof(struct sharedspace_s)); |
1394 | write(fd, &bob, sizeof(struct sharedspace_s)); |
1395 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s) ); |
1396 | } |
4e1ae1cd |
1397 | |
3f4fda20 |
1398 | /* mmap the region */ |
1399 | |
1400 | if ( ( sharedspace = (struct sharedspace_s *) mmap ( NULL, sizeof(struct sharedspace_s), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0 ) ) != -1 ) { |
1401 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared mmap region ok %d", sharedspace ); |
1402 | close(fd); |
1403 | } else { |
1404 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: mmap failed %d", errno ); |
1405 | exit(errno); |
1406 | } |
1407 | } |
e21f34f0 |
1408 | |
3f4fda20 |
1409 | #ifdef use_pthreads |
1410 | #define locktype pthread_rwlock_t |
1411 | #else |
1412 | #define locktype rwlock_t |
ea3e8708 |
1413 | #endif |
e21f34f0 |
1414 | |
3f4fda20 |
1415 | /* mmap our shared space for our lock */ |
1416 | if ( sharedlock = ( locktype * ) mmap ( NULL, sizeof(locktype), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0 ) ) { |
1417 | #ifndef use_pthreads |
1418 | rwlock_init(sharedlock, USYNC_PROCESS, NULL ); |
1419 | #else |
1420 | pthread_rwlockattr_init(&rwlock_attr); |
1421 | pthread_rwlockattr_setpshared(&rwlock_attr, PTHREAD_PROCESS_SHARED); |
1422 | pthread_rwlock_init(sharedlock, &rwlock_attr ); |
1423 | #endif |
1424 | } else { |
1425 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: rwlock mmap failed %d", errno ); |
1426 | } |
e21f34f0 |
1427 | |
3f4fda20 |
1428 | #undef locktype |
e21f34f0 |
1429 | |
3f4fda20 |
1430 | /* set our default tokens */ |
1431 | |
1432 | getModConfig (cfg, s); |
42d78dfb |
1433 | |
1434 | oldrenewcount = sharedspace->renewcount; |
1435 | |
1436 | pag_for_children = 0; |
1437 | |
1438 | pid = ap_bspawn_child (p, waklog_child_routine, s, kill_always, |
1439 | NULL, NULL, NULL); |
1440 | |
1441 | pag_for_children = 1; |
1442 | |
3f4fda20 |
1443 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1444 | "mod_waklog: ap_bspawn_child: %d.", pid); |
3f4fda20 |
1445 | |
1446 | if ( use_existing == 0 ) { |
1447 | /* wait here until our child process has gone and done it's renewing thing. */ |
1448 | while( sharedspace->renewcount == oldrenewcount ) { |
1449 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: waiting for tokens..." ); |
1450 | sleep(2); |
87822447 |
1451 | } |
3f4fda20 |
1452 | } |
1453 | |
1454 | if ( cfg->default_principal ) { |
1455 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1456 | } |
1457 | |
87822447 |
1458 | } |
3f4fda20 |
1459 | #endif |
1460 | |
1461 | static int |
1462 | waklog_phase0 (request_rec * r) |
e21f34f0 |
1463 | { |
3f4fda20 |
1464 | waklog_config *cfg; |
e21f34f0 |
1465 | |
3f4fda20 |
1466 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1467 | "mod_waklog: phase0 called"); |
3f4fda20 |
1468 | |
1469 | cfg = retrieve_config(r); |
e21f34f0 |
1470 | |
3f4fda20 |
1471 | if ( cfg->protect && cfg->principal ) { |
1472 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 using user %s", cfg->principal); |
1473 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1474 | } else if ( cfg->default_principal ) { |
1475 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 using default user %s", cfg->default_principal); |
1476 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1477 | } else { |
1478 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 not doing nothin."); |
1479 | } |
e21f34f0 |
1480 | |
3f4fda20 |
1481 | return DECLINED; |
e21f34f0 |
1482 | } |
4e1ae1cd |
1483 | |
3f4fda20 |
1484 | static int |
1485 | waklog_phase1 (request_rec * r) |
bed98ff9 |
1486 | { |
3f4fda20 |
1487 | waklog_config *cfg; |
313dde40 |
1488 | |
3f4fda20 |
1489 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1490 | "mod_waklog: phase1 called"); |
7193eb01 |
1491 | |
3f4fda20 |
1492 | cfg = retrieve_config(r); |
313dde40 |
1493 | |
3f4fda20 |
1494 | if ( cfg->protect && cfg->principal ) { |
1495 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 using user %s", cfg->principal); |
1496 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1497 | } else if ( cfg->default_principal ) { |
1498 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 using default user %s", cfg->default_principal); |
1499 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1500 | } else { |
1501 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 not doing nothin."); |
1502 | } |
4e1ae1cd |
1503 | |
3f4fda20 |
1504 | return DECLINED; |
7193eb01 |
1505 | } |
4e1ae1cd |
1506 | |
3f4fda20 |
1507 | static int |
1508 | waklog_phase3 (request_rec * r) |
7193eb01 |
1509 | { |
3f4fda20 |
1510 | waklog_config *cfg; |
1e18ef7d |
1511 | |
3f4fda20 |
1512 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1513 | "mod_waklog: phase 3 called"); |
1e18ef7d |
1514 | |
3f4fda20 |
1515 | cfg = retrieve_config(r); |
1516 | |
1517 | if ( cfg->protect && cfg->principal ) { |
1518 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 using user %s", cfg->principal); |
1519 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1520 | } else if ( cfg->default_principal ) { |
1521 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 using default user %s", cfg->default_principal); |
1522 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1523 | } else { |
1524 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 not doing nothin."); |
1525 | } |
1526 | |
1527 | return DECLINED; |
1528 | } |
bed98ff9 |
1529 | |
3f4fda20 |
1530 | static int |
1531 | waklog_phase6 (request_rec * r) |
1532 | { |
1533 | waklog_config *cfg; |
1534 | |
1535 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1536 | "mod_waklog: phase6 called"); |
3f4fda20 |
1537 | |
1538 | cfg = retrieve_config(r); |
1539 | |
1540 | if ( cfg->protect && cfg->principal ) { |
1541 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 using user %s", cfg->principal); |
1542 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1543 | } else if ( cfg->default_principal ) { |
1544 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 using default user %s", cfg->default_principal); |
1545 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1546 | } else { |
1547 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 not doing nothin."); |
1548 | } |
1549 | |
1550 | return DECLINED; |
1551 | } |
bed98ff9 |
1552 | |
3f4fda20 |
1553 | static int |
1554 | waklog_phase7 (request_rec * r) |
1555 | { |
1556 | waklog_config *cfg; |
1557 | int rc = 0; |
1558 | |
1559 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1560 | "mod_waklog: phase7 called"); |
3f4fda20 |
1561 | |
1562 | cfg = retrieve_config (r); |
1563 | |
1564 | if ( cfg->protect && cfg->usertokens ) { |
1565 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using usertokens"); |
1566 | rc = set_auth( r->server, r, 1, NULL, NULL, 0); |
1567 | } else if ( cfg->protect && cfg->principal ) { |
1568 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using user %s", cfg->principal); |
1569 | rc = set_auth( r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1570 | } else if ( cfg->default_principal ) { |
1571 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using default user %s", cfg->default_principal); |
1572 | rc = set_auth( r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
d3bea354 |
1573 | } else { |
1574 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using no default principal"); |
1575 | set_auth(r->server, r, 0, NULL, NULL, 0); |
3f4fda20 |
1576 | } |
1577 | |
1578 | if ( rc ) { |
1579 | return 400; |
1580 | } |
1581 | |
1582 | return DECLINED; |
1583 | } |
87822447 |
1584 | |
3f4fda20 |
1585 | static int |
1586 | waklog_phase9 (request_rec * r) |
1587 | { |
1588 | waklog_config *cfg; |
bed98ff9 |
1589 | |
3f4fda20 |
1590 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1591 | "mod_waklog: phase9 called"); |
bed98ff9 |
1592 | |
3f4fda20 |
1593 | getModConfig (cfg, r->server); |
1594 | |
1595 | if ( cfg->default_principal ) { |
1596 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase9 using default user %s", cfg->default_principal); |
1597 | set_auth( r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1598 | } |
1599 | |
1600 | return DECLINED; |
bed98ff9 |
1601 | } |
1602 | |
ff47641b |
1603 | |
87822447 |
1604 | static |
c9d59a9c |
1605 | #ifdef APACHE2 |
ff47641b |
1606 | int |
87822447 |
1607 | #else |
ff47641b |
1608 | void |
87822447 |
1609 | #endif |
ff47641b |
1610 | waklog_new_connection (conn_rec * c |
c9d59a9c |
1611 | #ifdef APACHE2 |
42d78dfb |
1612 | , void *dummy |
87822447 |
1613 | #endif |
ff47641b |
1614 | ) |
1615 | { |
1616 | |
3f4fda20 |
1617 | waklog_config *cfg; |
ff47641b |
1618 | |
1619 | log_error (APLOG_MARK, APLOG_DEBUG, 0, c->base_server, |
42d78dfb |
1620 | "mod_waklog: new_connection called: pid: %d", getpid ()); |
1621 | |
1622 | getModConfig(cfg, c->base_server); |
1623 | |
1624 | if ( cfg->default_principal ) { |
1625 | log_error(APLOG_MARK, APLOG_DEBUG, 0, c->base_server, "mod_waklog: new conn setting default user %s", |
1626 | cfg->default_principal); |
1627 | set_auth( c->base_server, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1628 | } |
1629 | |
1630 | |
3f4fda20 |
1631 | return |
c9d59a9c |
1632 | #ifdef APACHE2 |
3f4fda20 |
1633 | 0 |
87822447 |
1634 | #endif |
3f4fda20 |
1635 | ; |
7193eb01 |
1636 | } |
bed98ff9 |
1637 | |
c4ad0387 |
1638 | |
1196adfe |
1639 | /* |
1640 | ** Here's a quick explaination for phase0 and phase2: |
1641 | ** Apache does a stat() on the path between phase0 and |
1642 | ** phase2, and must by ACLed rl to succeed. So, at |
1643 | ** phase0 we acquire credentials for umweb:servers from |
1644 | ** a keytab, and at phase2 we must ensure we remove them. |
1645 | ** |
1646 | ** Failure to "unlog" would be a security risk. |
1647 | */ |
ff47641b |
1648 | static int |
1649 | waklog_phase2 (request_rec * r) |
c4ad0387 |
1650 | { |
161ffd84 |
1651 | |
ff47641b |
1652 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1653 | "mod_waklog: phase2 called"); |
1196adfe |
1654 | |
ff47641b |
1655 | if (child.token.ticketLen) |
1656 | { |
1657 | memset (&child.token, 0, sizeof (struct ktc_token)); |
c4ad0387 |
1658 | |
ff47641b |
1659 | ktc_ForgetAllTokens (); |
c4ad0387 |
1660 | |
ff47641b |
1661 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1662 | "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", |
1663 | getpid ()); |
c4ad0387 |
1664 | } |
1196adfe |
1665 | |
ff47641b |
1666 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1667 | "mod_waklog: phase2 returning"); |
1196adfe |
1668 | |
3f4fda20 |
1669 | return DECLINED; |
c4ad0387 |
1670 | } |
1671 | |
c9d59a9c |
1672 | #ifndef APACHE2 |
313dde40 |
1673 | module MODULE_VAR_EXPORT waklog_module = { |
3f4fda20 |
1674 | STANDARD_MODULE_STUFF, |
866ccfbd |
1675 | waklog_init, /* module initializer */ |
42d78dfb |
1676 | waklog_create_dir_config, /* create per-dir config structures */ |
866ccfbd |
1677 | waklog_merge_dir_config, /* merge per-dir config structures */ |
1678 | waklog_create_server_config, /* create per-server config structures */ |
1679 | waklog_merge_dir_config, /* merge per-server config structures */ |
1680 | waklog_cmds, /* table of config file commands */ |
1681 | NULL, /* [#8] MIME-typed-dispatched handlers */ |
1682 | waklog_phase1, /* [#1] URI to filename translation */ |
1683 | NULL, /* [#4] validate user id from request */ |
1684 | NULL, /* [#5] check if the user is ok _here_ */ |
1685 | waklog_phase3, /* [#3] check access by host address */ |
1686 | waklog_phase6, /* [#6] determine MIME type */ |
1687 | waklog_phase7, /* [#7] pre-run fixups */ |
1688 | waklog_phase9, /* [#9] log a transaction */ |
1689 | NULL, /* [#2] header parser */ |
1690 | waklog_child_init, /* child_init */ |
1691 | waklog_child_exit, /* child_exit */ |
1692 | waklog_phase0 /* [#0] post read-request */ |
bed98ff9 |
1693 | #ifdef EAPI |
866ccfbd |
1694 | , NULL, /* EAPI: add_module */ |
1695 | NULL, /* EAPI: remove_module */ |
1696 | NULL, /* EAPI: rewrite_command */ |
1697 | waklog_new_connection /* EAPI: new_connection */ |
bed98ff9 |
1698 | #endif |
1699 | }; |
87822447 |
1700 | #else |
1701 | static void |
ff47641b |
1702 | waklog_register_hooks (apr_pool_t * p) |
87822447 |
1703 | { |
3f4fda20 |
1704 | ap_hook_translate_name (waklog_phase1, NULL, NULL, APR_HOOK_FIRST); |
ff47641b |
1705 | ap_hook_header_parser (waklog_phase2, NULL, NULL, APR_HOOK_FIRST); |
3f4fda20 |
1706 | ap_hook_access_checker (waklog_phase3, NULL, NULL, APR_HOOK_FIRST); |
1707 | ap_hook_type_checker (waklog_phase6, NULL, NULL, APR_HOOK_FIRST); |
ff47641b |
1708 | ap_hook_fixups (waklog_phase7, NULL, NULL, APR_HOOK_FIRST); |
3f4fda20 |
1709 | ap_hook_log_transaction (waklog_phase9, NULL, NULL, APR_HOOK_FIRST); |
ff47641b |
1710 | ap_hook_child_init (waklog_child_init, NULL, NULL, APR_HOOK_FIRST); |
1711 | ap_hook_post_read_request (waklog_phase0, NULL, NULL, APR_HOOK_FIRST); |
1712 | ap_hook_pre_connection (waklog_new_connection, NULL, NULL, APR_HOOK_FIRST); |
1713 | ap_hook_post_config (waklog_init_handler, NULL, NULL, APR_HOOK_MIDDLE); |
87822447 |
1714 | } |
1715 | |
1716 | |
3f4fda20 |
1717 | module AP_MODULE_DECLARE_DATA waklog_module = { |
1718 | STANDARD20_MODULE_STUFF, |
42d78dfb |
1719 | waklog_create_dir_config, /* create per-dir conf structures */ |
1720 | waklog_merge_dir_config, /* merge per-dir conf structures */ |
1721 | waklog_create_server_config, /* create per-server conf structures */ |
1722 | waklog_merge_dir_config, /* merge per-server conf structures */ |
1723 | waklog_cmds, /* table of configuration directives */ |
1724 | waklog_register_hooks /* register hooks */ |
87822447 |
1725 | }; |
1726 | #endif |