Commit | Line | Data |
---|---|---|
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> | |
2779b42e | 13 | #include <stropts.h> |
6dfa6ea5 | 14 | #include <sys/ioccom.h> |
ff47641b | 15 | #elif linux |
16 | #define use_pthreads | |
17 | #include <features.h> | |
18 | #include <sys/types.h> | |
19 | #include <sys/mman.h> | |
20 | #include <pthread.h> | |
21 | #else | |
22 | #error "make sure you include the right stuff here" | |
23 | #endif | |
24 | ||
25 | #ifndef MAXNAMELEN | |
26 | #define MAXNAMELEN 1024 | |
27 | #endif | |
28 | ||
891fb458 | 29 | #ifdef STANDARD20_MODULE_STUFF |
c9d59a9c | 30 | #define APACHE2 |
31 | #endif | |
32 | ||
33 | /********************* APACHE1 ******************************************************************************/ | |
34 | #ifndef APACHE2 | |
ebb1f61c | 35 | #include "ap_config.h" |
ebb1f61c | 36 | #include <http_conf_globals.h> |
37 | #define MK_POOL pool | |
38 | #define MK_TABLE_GET ap_table_get | |
39 | #define MK_TABLE_SET ap_table_set | |
40 | #define command(name, func, var, type, usage) \ | |
41 | { name, func, \ | |
42 | NULL , \ | |
43 | RSRC_CONF | ACCESS_CONF , type, usage } | |
21a7788b | 44 | module waklog_module; |
ebb1f61c | 45 | |
46 | /********************* APACHE2 ******************************************************************************/ | |
47 | #else | |
87822447 | 48 | #include <apr_strings.h> |
49 | #include <apr_base64.h> | |
ebb1f61c | 50 | #define ap_pcalloc apr_pcalloc |
51 | #define ap_pdupstr apr_pdupstr | |
52 | #define ap_pstrdup apr_pstrdup | |
87822447 | 53 | #define MK_POOL apr_pool_t |
54 | #define MK_TABLE_GET apr_table_get | |
d06251b1 | 55 | #define MK_TABLE_SET apr_table_set |
87822447 | 56 | #include "unixd.h" |
57 | extern unixd_config_rec unixd_config; | |
58 | #define ap_user_id unixd_config.user_id | |
59 | #define ap_group_id unixd_config.group_id | |
60 | #define ap_user_name unixd_config.user_name | |
61 | #define command(name, func, var, type, usage) \ | |
62 | AP_INIT_ ## type (name, (void*) func, \ | |
ebb1f61c | 63 | NULL, \ |
64 | RSRC_CONF | ACCESS_CONF, usage) | |
21a7788b | 65 | module AP_MODULE_DECLARE_DATA waklog_module; |
66 | typedef struct { int dummy; } child_info; | |
87822447 | 67 | const char *userdata_key = "waklog_init"; |
21a7788b | 68 | |
c9d59a9c | 69 | #endif /* APACHE2 */ |
ebb1f61c | 70 | /**************************************************************************************************/ |
877d453f | 71 | |
72 | #include <krb5.h> | |
3cb7bdb7 RJH |
73 | |
74 | #include <afs/param.h> | |
75 | ||
877d453f | 76 | #include <afs/venus.h> |
77 | #include <afs/auth.h> | |
78 | #include <afs/dirpath.h> | |
79 | #include <afs/ptuser.h> | |
80 | #include <rx/rxkad.h> | |
81 | ||
82 | #define TKT_LIFE ( 12 * 60 * 60 ) | |
42d78dfb | 83 | #define SLEEP_TIME ( TKT_LIFE - 5*60 ) |
877d453f | 84 | |
5d0827ae | 85 | #define WAKLOG_UNSET -1 |
877d453f | 86 | |
87 | #ifdef WAKLOG_DEBUG | |
88 | #undef APLOG_DEBUG | |
89 | #define APLOG_DEBUG APLOG_ERR | |
90 | #endif | |
91 | ||
877d453f | 92 | /* this is used to turn off pag generation for the backround worker child during startup */ |
93 | int pag_for_children = 1; | |
94 | ||
95 | typedef struct | |
96 | { | |
97 | int forked; | |
98 | int configured; | |
99 | int protect; | |
100 | int usertokens; | |
c8563f50 | 101 | int cell_in_principal; |
21a7788b | 102 | int disable_token_cache; |
877d453f | 103 | char *keytab; |
104 | char *principal; | |
105 | char *default_principal; | |
106 | char *default_keytab; | |
107 | char *afs_cell; | |
98534230 | 108 | char *afs_cell_realm; |
877d453f | 109 | char *path; |
110 | MK_POOL *p; | |
111 | } | |
112 | waklog_config; | |
113 | ||
114 | typedef struct | |
115 | { | |
116 | struct ktc_token token; | |
117 | char clientprincipal[MAXNAMELEN]; | |
118 | krb5_context kcontext; | |
119 | krb5_ccache ccache; | |
120 | struct ktc_principal server; | |
121 | struct ktc_principal client; | |
122 | int pr_init; | |
123 | } waklog_child_config; | |
124 | ||
125 | waklog_child_config child; | |
126 | ||
127 | struct tokencache_ent { | |
128 | char clientprincipal[MAXNAMELEN]; | |
129 | struct ktc_token token; | |
130 | struct ktc_principal client; | |
131 | struct ktc_principal server; | |
132 | time_t lastused; | |
133 | int persist; | |
134 | }; | |
135 | ||
136 | #define SHARED_TABLE_SIZE 512 | |
137 | ||
138 | struct sharedspace_s { | |
139 | int renewcount; | |
140 | struct tokencache_ent sharedtokens[SHARED_TABLE_SIZE]; | |
141 | }; | |
142 | ||
143 | struct sharedspace_s *sharedspace = NULL; | |
144 | ||
145 | struct renew_ent { | |
146 | char *keytab; | |
147 | char *principal; | |
148 | int lastrenewed; | |
149 | }; | |
150 | ||
151 | #ifdef use_pthreads | |
152 | pthread_rwlock_t *sharedlock = NULL; | |
153 | #else | |
154 | rwlock_t *sharedlock = NULL; | |
155 | #endif | |
156 | ||
157 | struct renew_ent renewtable[SHARED_TABLE_SIZE]; | |
158 | ||
159 | int renewcount = 0; | |
160 | ||
ebb1f61c | 161 | |
87822447 | 162 | |
c69d952f | 163 | #define getModConfig(P, X) P = (waklog_config *) ap_get_module_config( (X)->module_config, &waklog_module ); |
87822447 | 164 | |
58bbdc54 | 165 | |
87822447 | 166 | static void |
3f4fda20 | 167 | log_error (const char *file, int line, int level, int status, |
42d78dfb | 168 | const server_rec * s, const char *fmt, ...) |
4d47a8d9 | 169 | { |
3f4fda20 | 170 | char errstr[4096]; |
171 | va_list ap; | |
4d47a8d9 | 172 | |
3f4fda20 | 173 | va_start (ap, fmt); |
174 | vsnprintf (errstr, 1024, fmt, ap); | |
175 | va_end (ap); | |
4d47a8d9 | 176 | |
c9d59a9c | 177 | #ifdef APACHE2 |
3f4fda20 | 178 | ap_log_error (file, line, level | APLOG_NOERRNO, status, s, "(%d) %s", getpid(), errstr); |
87822447 | 179 | #else |
3f4fda20 | 180 | ap_log_error (file, line, level | APLOG_NOERRNO, s, "(%d) %s", getpid(), errstr); |
87822447 | 181 | #endif |
4d47a8d9 | 182 | |
87822447 | 183 | } |
4d47a8d9 | 184 | |
3f4fda20 | 185 | waklog_config *retrieve_config(request_rec *r) { |
186 | ||
187 | request_rec *my; | |
188 | waklog_config *cfg; | |
189 | ||
190 | if ( r && r->main ) { | |
191 | my = r->main; | |
192 | } else if (r) { | |
193 | my = r; | |
194 | } else { | |
195 | return NULL; | |
196 | } | |
197 | ||
198 | if ( my && ( cfg = (waklog_config *) ap_get_module_config(my->per_dir_config, &waklog_module ) ) ) { | |
199 | return cfg; | |
200 | } else { | |
201 | getModConfig (cfg, r->server); | |
202 | } | |
203 | ||
204 | return cfg; | |
205 | ||
206 | } | |
313dde40 | 207 | |
3f4fda20 | 208 | /* set_auth -- sets the tokens of the current process to this user. |
209 | if "self" is set, it divines the user from the current requests' environment. | |
210 | otherwise, it's gettng it from principal/keytab */ | |
211 | ||
212 | int | |
213 | set_auth ( server_rec *s, request_rec *r, int self, char *principal, char *keytab, int storeonly ) { | |
214 | ||
215 | int i; | |
216 | int usecached = 0; | |
217 | krb5_error_code kerror = 0; | |
218 | krb5_principal kprinc = NULL; | |
219 | krb5_get_init_creds_opt kopts; | |
220 | krb5_creds v5creds; | |
221 | krb5_creds increds; | |
c760f0a1 | 222 | krb5_ccache clientccache; |
3f4fda20 | 223 | struct ktc_principal server = { "afs", "", "" }; |
224 | struct ktc_principal client; | |
225 | struct ktc_token token; | |
226 | krb5_creds *v5credsp = NULL; | |
227 | krb5_keytab krb5kt = NULL; | |
228 | char buf[MAXNAMELEN]; | |
229 | waklog_config *cfg; | |
230 | int rc = 0; | |
231 | int buflen = 0; | |
232 | time_t oldest_time = 0; | |
c760f0a1 | 233 | int oldest = 0; |
3f4fda20 | 234 | int stored = -1; |
235 | time_t mytime; | |
236 | int indentical; | |
c8563f50 | 237 | int cell_in_principal; |
238 | int attempt; | |
7c53b5d0 | 239 | int use_client_credentials = 0; |
3f4fda20 | 240 | |
c760f0a1 | 241 | char k5user[MAXNAMELEN] = ""; |
242 | char *k5secret = NULL; | |
243 | ||
7c53b5d0 | 244 | char *k5path = NULL; |
3f4fda20 | 245 | |
246 | memset((char *) &increds, 0, sizeof(increds)); | |
3f4fda20 | 247 | /* init some stuff if it ain't already */ |
c760f0a1 | 248 | /* XXX - In what situation will these not be initialized? */ |
249 | ||
3f4fda20 | 250 | if ( ! child.kcontext ) { |
c760f0a1 | 251 | if ((kerror = krb5_init_context(&child.kcontext))) { |
252 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize Kerberos context err=%d", | |
253 | kerror); | |
254 | return(-1); | |
255 | } | |
7c53b5d0 | 256 | } |
c760f0a1 | 257 | |
258 | if ( !child.ccache) { | |
259 | if ((kerror = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache))) { | |
260 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize credentials cache %s err=%d", | |
261 | k5path, kerror ); | |
262 | return(-1); | |
263 | } | |
3f4fda20 | 264 | } |
265 | ||
d3bea354 | 266 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth: %d, %s, %s, %d, KRB5CC=%s user=%s", |
7c53b5d0 | 267 | self, principal ? principal : "NULL", |
d3bea354 | 268 | keytab ? keytab : "NULL", |
269 | storeonly, | |
270 | k5path ? k5path : "NULL", | |
271 | #ifdef APACHE2 | |
272 | (r && r->user) ? r->user : "NULL" | |
273 | #else | |
c760f0a1 | 274 | (r && r->connection && r->connection->user) ? r->connection->user : "NULL" |
d3bea354 | 275 | #endif |
276 | ); | |
3f4fda20 | 277 | |
278 | /* pull the server config record that we care about... */ | |
279 | ||
280 | if ( r ) { | |
281 | cfg = retrieve_config(r); | |
282 | } else { | |
283 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, | |
42d78dfb | 284 | "mod_waklog: set_auth using no config" ); |
3f4fda20 | 285 | getModConfig (cfg, s); |
286 | } | |
287 | ||
288 | if ( ! cfg ) { | |
289 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: cfg is %d", cfg ); | |
290 | } | |
c760f0a1 | 291 | |
292 | ||
3f4fda20 | 293 | if ( self ) { |
294 | /* pull out our principal name and stuff from the environment -- webauth better have sent | |
c760f0a1 | 295 | through. */ |
296 | ||
297 | #ifdef APACHE2 | |
3f4fda20 | 298 | if ( ! ( r && r->connection && r->user )) { |
299 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: self authentication selected, but no data available"); | |
5220a4ef | 300 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: r->user=%s", (r->user==NULL ? "null" : r->user)); |
3f4fda20 | 301 | return -1; |
302 | } | |
303 | ||
304 | strncpy(k5user, r->user, sizeof(k5user)); | |
c760f0a1 | 305 | #else |
306 | if ( ! (r && r->connection && r->connection->user)) { | |
307 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: self authentication selected, but no username available"); | |
3f4fda20 | 308 | return -1; |
c760f0a1 | 309 | } |
310 | ||
311 | strncpy(k5user, r->connection->user, sizeof(k5user)); | |
312 | #endif | |
313 | /* if they've supplied a credentials cache */ | |
314 | k5path = (char *) MK_TABLE_GET( r->subprocess_env, "KRB5CCNAME" ); | |
315 | ||
316 | /* the other thing we need is someone's password */ | |
317 | k5secret = (char *) MK_TABLE_GET( r->notes, "ATTR_PASSWORD" ); | |
3f4fda20 | 318 | |
319 | /* we'll pick this up later after we've checked the cache and current state */ | |
320 | ||
321 | } else | |
c760f0a1 | 322 | if ( principal ) { |
323 | strncpy(k5user, principal, sizeof(k5user)); | |
98534230 | 324 | } else |
c760f0a1 | 325 | #ifdef APACHE2 |
326 | if (r && r->user) { | |
327 | strncpy(k5user, r->user, sizeof(k5user)); | |
328 | } | |
329 | #else | |
330 | if (r && r->connection && r->connection->user) { | |
331 | strncpy(k5user, r->connection->user, sizeof(k5user)); | |
3f4fda20 | 332 | } |
c760f0a1 | 333 | #endif |
3f4fda20 | 334 | |
7c53b5d0 | 335 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth: k5user=%s", k5user ? k5user : "NULL"); |
3f4fda20 | 336 | mytime = time(0); |
337 | ||
338 | /* see if we should just go ahead and ignore this call, since we already should be set to these | |
339 | credentials */ | |
313dde40 | 340 | |
3f4fda20 | 341 | if ( ! storeonly ) { |
313dde40 | 342 | |
3f4fda20 | 343 | #ifdef use_pthreads |
344 | pthread_rwlock_rdlock( sharedlock ); | |
345 | #else | |
346 | rw_rdlock( sharedlock ); | |
347 | #endif | |
313dde40 | 348 | |
3f4fda20 | 349 | for ( i = 0; i < SHARED_TABLE_SIZE; ++i ) { |
350 | ||
351 | /* if it's a token for the principal we're looking for, and it hasn't expired yet */ | |
352 | ||
353 | if ( ( !strcmp( k5user, | |
354 | sharedspace->sharedtokens[i].clientprincipal ) ) && | |
355 | ( sharedspace->sharedtokens[i].token.endTime > mytime ) ) { | |
356 | ||
357 | if ( ! memcmp(&child.token, &sharedspace->sharedtokens[i].token, sizeof(child.token) ) ) { | |
358 | indentical = 1; | |
359 | } else { | |
360 | indentical = 0; | |
361 | } | |
362 | ||
363 | /* copy the token out of the cache and into the child object */ | |
364 | ||
365 | strcpy(child.clientprincipal, sharedspace->sharedtokens[i].clientprincipal ); | |
366 | memcpy(&child.token, &sharedspace->sharedtokens[i].token, sizeof(child.token)); | |
367 | memcpy(&child.server, &sharedspace->sharedtokens[i].server, sizeof(child.server)); | |
368 | memcpy(&child.client, &sharedspace->sharedtokens[i].client, sizeof(child.client)); | |
369 | ||
370 | /* set our last used time thing */ | |
371 | sharedspace->sharedtokens[i].lastused = mytime; | |
372 | ||
373 | usecached = 1; | |
374 | ||
375 | break; | |
376 | ||
377 | } | |
378 | ||
379 | } | |
380 | ||
381 | /* release the lock on the token cache */ | |
382 | #ifdef use_pthreads | |
383 | pthread_rwlock_unlock( sharedlock ); | |
384 | #else | |
385 | rw_unlock( sharedlock ); | |
386 | #endif | |
313dde40 | 387 | |
3f4fda20 | 388 | if ( usecached ) { |
389 | /* release the lock on the token cache */ | |
390 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, | |
391 | "mod_waklog: set_auth using shared token %d for %s", i, k5user ); | |
392 | ||
393 | } | |
394 | ||
395 | /* if this is something that was in the cache, and it's the same as the token we already have stored, | |
396 | and we weren't calling this just to renew it... */ | |
397 | ||
398 | if ( usecached && indentical ) { | |
399 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: token is identical for %s", k5user ); | |
400 | return 0; | |
401 | } | |
402 | ||
403 | } | |
7c53b5d0 | 404 | |
3f4fda20 | 405 | /* if 'usecached' isn't set, we've got to get our tokens from somewhere... */ |
3f4fda20 | 406 | if (( ! usecached ) && ( k5user )) { |
313dde40 | 407 | |
3f4fda20 | 408 | /* clear out the creds structure */ |
409 | memset((void *) &v5creds, 0, sizeof(v5creds)); | |
410 | ||
411 | /* create a principal out of our k5user string */ | |
412 | ||
c760f0a1 | 413 | if ( ( kerror = krb5_parse_name (child.kcontext, k5user, &kprinc ) ) ) { |
3f4fda20 | 414 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_parse_name %s", (char *) error_message(kerror) ); |
415 | goto cleanup; | |
416 | } | |
417 | ||
418 | /* create the credentials options */ | |
419 | ||
420 | krb5_get_init_creds_opt_init ( &kopts ); | |
421 | krb5_get_init_creds_opt_set_tkt_life ( &kopts, TKT_LIFE ); | |
422 | krb5_get_init_creds_opt_set_renew_life ( &kopts, 0 ); | |
423 | krb5_get_init_creds_opt_set_forwardable ( &kopts, 0 ); | |
424 | krb5_get_init_creds_opt_set_proxiable ( &kopts, 0 ); | |
425 | ||
c760f0a1 | 426 | if ( keytab || k5secret ) { |
3f4fda20 | 427 | |
c760f0a1 | 428 | if (keytab) { |
429 | /* if we've been passed a keytab, we're going to be getting our credentials from it */ | |
3f4fda20 | 430 | |
c760f0a1 | 431 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: using keytab %s", keytab); |
3f4fda20 | 432 | |
c760f0a1 | 433 | if ( ( kerror = krb5_kt_resolve(child.kcontext, keytab, &krb5kt ) ) ) { |
434 | log_error( APLOG_MARK, APLOG_ERR, 0, s, | |
435 | "mod_waklog: krb5_kt_resolve %s", error_message(kerror) ); | |
436 | goto cleanup; | |
437 | } | |
3f4fda20 | 438 | |
c760f0a1 | 439 | if ((kerror = krb5_get_init_creds_keytab (child.kcontext, &v5creds, |
440 | kprinc, krb5kt, 0, NULL, &kopts ) ) ) { | |
441 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_init_creds_keytab %s", | |
442 | error_message(kerror) ); | |
443 | goto cleanup; | |
444 | } | |
445 | } else if (k5secret) { | |
3f4fda20 | 446 | |
c760f0a1 | 447 | /* If the WebSSO is lame enough to provide a secret, then try and use that to get a token */ |
3f4fda20 | 448 | |
c760f0a1 | 449 | if ((kerror = krb5_get_init_creds_password ( child.kcontext, &v5creds, |
450 | kprinc, k5secret, NULL, NULL, 0, NULL, &kopts ) ) ) { | |
451 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_init_creds_password %s", | |
452 | error_message(kerror) ); | |
453 | /* nuke the password so it doesn't end up in core files */ | |
454 | memset(k5secret, 0, sizeof(k5secret)); | |
455 | goto cleanup; | |
456 | } | |
3f4fda20 | 457 | |
c760f0a1 | 458 | memset(k5secret, 0, sizeof(k5secret)); |
3f4fda20 | 459 | } |
c760f0a1 | 460 | |
3f4fda20 | 461 | /* initialize the credentials cache and store the stuff we just got */ |
c760f0a1 | 462 | if ( ( kerror = krb5_cc_initialize (child.kcontext, child.ccache, kprinc) ) ) { |
7c53b5d0 | 463 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: init credentials cache %s", |
464 | error_message(kerror)); | |
465 | goto cleanup; | |
466 | } | |
3f4fda20 | 467 | |
c760f0a1 | 468 | if ( ( kerror = krb5_cc_store_cred(child.kcontext, child.ccache, &v5creds) ) ) { |
7c53b5d0 | 469 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot store credentials %s", |
470 | error_message(kerror)); | |
471 | goto cleanup; | |
472 | } | |
3f4fda20 | 473 | |
c760f0a1 | 474 | krb5_free_cred_contents(child.kcontext, &v5creds); |
475 | ||
476 | if ( kerror ) { | |
477 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: store cred %s", error_message(kerror)); | |
478 | goto cleanup; | |
479 | } | |
480 | ||
481 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: kinit ok for %s", k5user ); | |
482 | ||
483 | } else if (k5path) { | |
484 | /* If we've got a path to a credentials cache, then try and use that. We can't just | |
485 | * replace child.creds, because we want to ensure that only this request gets access to | |
486 | * that cache */ | |
487 | ||
488 | if ( ( kerror = krb5_cc_resolve(child.kcontext, k5path, &clientccache ) ) ) { | |
489 | log_error(APLOG_MARK, APLOG_ERR, 0, s, | |
490 | "mod_waklog: can't open provided credentials cache %s err=%d", | |
491 | k5path, kerror ); | |
492 | goto cleanup; | |
493 | } | |
494 | ||
495 | use_client_credentials = 1; | |
496 | } | |
3f4fda20 | 497 | |
3f4fda20 | 498 | /* now, to the 'aklog' portion of our program. */ |
499 | ||
c8563f50 | 500 | /** we make two attempts here, one for afs@REALM and one for afs/cell@REALM */ |
501 | for(attempt = 0; attempt <= 1; attempt++) { | |
98534230 | 502 | strncpy( buf, "afs", sizeof(buf) - 1 ); |
c8563f50 | 503 | cell_in_principal = (cfg->cell_in_principal + attempt) % 2; |
504 | ||
505 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: cell_in_principal=%d", cell_in_principal ); | |
506 | if (cell_in_principal) { | |
98534230 | 507 | strncat(buf, "/", sizeof(buf) - strlen(buf) - 1); |
c8563f50 | 508 | strncat(buf, cfg->afs_cell, sizeof(buf) - strlen(buf) - 1); |
509 | } | |
5d0827ae | 510 | if (cfg->afs_cell_realm != NULL) { |
98534230 | 511 | strncat(buf, "@", sizeof(buf) - strlen(buf) - 1); |
512 | strncat(buf, cfg->afs_cell_realm, sizeof(buf) - strlen(buf) - 1); | |
513 | } | |
c8563f50 | 514 | |
515 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: using AFS principal: %s", buf); | |
516 | ||
517 | if ((kerror = krb5_parse_name (child.kcontext, buf, &increds.server))) { | |
518 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_parse name %s", error_message(kerror)); | |
519 | goto cleanup; | |
520 | } | |
7c53b5d0 | 521 | |
c760f0a1 | 522 | if (!use_client_credentials) { |
523 | clientccache = child.ccache; | |
524 | } | |
525 | ||
526 | if ((kerror = krb5_cc_get_principal(child.kcontext, clientccache, &increds.client))) { | |
527 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_cc_get_princ %s %p", error_message(kerror), clientccache); | |
c8563f50 | 528 | goto cleanup; |
529 | } | |
530 | ||
531 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: retrieved data from ccache for %s", k5user); | |
532 | ||
533 | increds.times.endtime = 0; | |
534 | ||
535 | increds.keyblock.enctype = ENCTYPE_DES_CBC_CRC; | |
536 | ||
c760f0a1 | 537 | if ( ( kerror = krb5_get_credentials (child.kcontext, 0, clientccache, &increds, &v5credsp ) ) ) { |
c8563f50 | 538 | /* only complain once we've tried both afs@REALM and afs/cell@REALM */ |
539 | if (attempt>=1) { | |
540 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_credentials: %s", | |
541 | error_message(kerror)); | |
542 | goto cleanup; | |
543 | } else { | |
544 | continue; | |
545 | } | |
546 | } | |
547 | cfg->cell_in_principal = cell_in_principal; | |
548 | break; | |
3f4fda20 | 549 | } |
c8563f50 | 550 | |
3f4fda20 | 551 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: get_credentials passed for %s", k5user); |
552 | ||
553 | if ( v5credsp->ticket.length >= MAXKTCTICKETLEN ) { | |
554 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: ticket size (%d) too big to fake", | |
555 | v5credsp->ticket.length); | |
556 | goto cleanup; | |
557 | } | |
313dde40 | 558 | |
3f4fda20 | 559 | memset(&token, 0, sizeof(struct ktc_token)); |
560 | ||
561 | token.startTime = v5credsp->times.starttime ? v5credsp->times.starttime : v5credsp->times.authtime; | |
562 | token.endTime = v5credsp->times.endtime; | |
563 | ||
564 | memmove( &token.sessionKey, v5credsp->keyblock.contents, v5credsp->keyblock.length); | |
565 | token.kvno = RXKAD_TKT_TYPE_KERBEROS_V5; | |
566 | token.ticketLen = v5credsp->ticket.length; | |
567 | memmove( token.ticket, v5credsp->ticket.data, token.ticketLen); | |
568 | ||
569 | /* build the name */ | |
570 | ||
571 | memmove( buf, v5credsp->client->data[0].data, min(v5credsp->client->data[0].length, | |
572 | MAXKTCNAMELEN -1 )); | |
573 | buf[v5credsp->client->data[0].length] = '\0'; | |
574 | if ( v5credsp->client->length > 1 ) { | |
575 | strncat(buf, ".", sizeof(buf) - strlen(buf) - 1); | |
576 | buflen = strlen(buf); | |
577 | memmove(buf + buflen, v5credsp->client->data[1].data, | |
578 | min(v5credsp->client->data[1].length, | |
579 | MAXKTCNAMELEN - strlen(buf) - 1)); | |
580 | buf[buflen + v5credsp->client->data[1].length] = '\0'; | |
581 | } | |
582 | ||
583 | /* assemble the client */ | |
584 | strncpy(client.name, buf, sizeof(client.name) - 1 ); | |
585 | strncpy(client.instance, "", sizeof(client.instance) - 1 ); | |
586 | memmove(buf, v5credsp->client->realm.data, min(v5credsp->client->realm.length, | |
587 | MAXKTCNAMELEN - 1)); | |
588 | buf[v5credsp->client->realm.length] = '\0'; | |
589 | strncpy(client.cell, buf, sizeof(client.cell)); | |
590 | ||
591 | /* assemble the server's cell */ | |
891fb458 | 592 | strncpy(server.cell, cfg->afs_cell, sizeof(server.cell) - 1); |
3f4fda20 | 593 | |
594 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: preparing to init PTS connection for %s", server.cell); | |
595 | ||
596 | /* fill out the AFS ID in the client name */ | |
597 | /* we've done a pr_Initialize in the child_init -- once, per process. If you try to do it more | |
598 | * strange things seem to happen. */ | |
599 | ||
600 | { | |
601 | afs_int32 viceId = 0; | |
602 | ||
603 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: making PTS call to look up %s", client.name); | |
604 | ||
605 | if ( ( rc = pr_SNameToId( client.name, &viceId ) ) == 0 ) { | |
606 | snprintf( client.name, sizeof(client.name), "AFS ID %d", viceId ); | |
607 | } else { | |
608 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: PTS call returned error %d ", rc); | |
609 | } | |
610 | ||
611 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: PTS call returned %s ", client.name); | |
612 | ||
613 | } | |
614 | ||
615 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: server: name %s, instance %s, cell %s", | |
616 | server.name, server.instance, server.cell ); | |
617 | ||
618 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: client: name %s, instance %s, cell %s", | |
619 | client.name, client.instance, client.cell ); | |
620 | ||
621 | /* copy the resulting stuff into the child structure */ | |
622 | ||
623 | strncpy(child.clientprincipal, k5user, sizeof(child.clientprincipal)); | |
624 | memcpy(&child.token, &token, sizeof(child.token)); | |
625 | memcpy(&child.server, &server, sizeof(child.server)); | |
626 | memcpy(&child.client, &client, sizeof(child.client)); | |
627 | ||
628 | /* stuff the resulting token-related stuff into our shared token cache */ | |
629 | /* note, that anything that was set from a keytab is "persistant", and is immune | |
630 | * from LRU-aging. This is because nothing but the process that's running as root | |
631 | * can update these, and it's running every hour or so and renewing these tokens. | |
632 | * and we don't want them aged out. | |
633 | */ | |
634 | ||
635 | mytime = oldest_time = time(0); | |
636 | ||
637 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: waiting for shared space for %s ", k5user); | |
4e1ae1cd | 638 | |
3f4fda20 | 639 | #ifdef use_pthreads |
640 | pthread_rwlock_wrlock(sharedlock); | |
641 | #else | |
642 | rw_wrlock(sharedlock); | |
643 | #endif | |
4e1ae1cd | 644 | |
3f4fda20 | 645 | for( i = ( SHARED_TABLE_SIZE - 1 ); i >= 0; i-- ) { |
646 | if ( ( sharedspace->sharedtokens[i].lastused <= oldest_time) && | |
647 | ( sharedspace->sharedtokens[i].persist == 0 ) ) { | |
648 | oldest = i; | |
649 | oldest_time = sharedspace->sharedtokens[i].lastused; | |
650 | } | |
651 | if ( ! strcmp ( sharedspace->sharedtokens[i].clientprincipal, | |
652 | child.clientprincipal ) ) { | |
653 | memcpy(&sharedspace->sharedtokens[i].token, &child.token, sizeof(child.token) ); | |
654 | memcpy(&sharedspace->sharedtokens[i].client, &child.client, sizeof(child.client) ); | |
655 | memcpy(&sharedspace->sharedtokens[i].server, &child.server, sizeof(child.server) ); | |
656 | sharedspace->sharedtokens[i].lastused = mytime; | |
657 | sharedspace->sharedtokens[i].persist = keytab ? 1 : 0; | |
658 | stored = i; | |
659 | break; | |
660 | } | |
661 | } | |
662 | ||
663 | if ( stored == -1 ) { | |
664 | memcpy(&sharedspace->sharedtokens[oldest].token, &child.token, sizeof(child.token) ); | |
665 | memcpy(&sharedspace->sharedtokens[oldest].client, &child.client, sizeof(child.client) ); | |
666 | memcpy(&sharedspace->sharedtokens[oldest].server, &child.server, sizeof(child.server) ); | |
667 | strcpy(sharedspace->sharedtokens[oldest].clientprincipal, child.clientprincipal ); | |
668 | sharedspace->sharedtokens[oldest].lastused = mytime; | |
669 | sharedspace->sharedtokens[oldest].persist = keytab ? 1 : 0; | |
670 | stored = oldest; | |
671 | } | |
3ed1e28a | 672 | |
3f4fda20 | 673 | #ifdef use_pthreads |
674 | pthread_rwlock_unlock(sharedlock); | |
675 | #else | |
676 | rw_unlock(sharedlock); | |
677 | #endif | |
678 | ||
679 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: token stored in slot %d for %s", stored, | |
680 | child.clientprincipal ); | |
681 | ||
682 | } else if ( ! usecached ) { | |
683 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth divergent case"); | |
684 | } | |
685 | ||
686 | if ( storeonly ) { | |
687 | goto cleanup; | |
688 | } | |
689 | ||
690 | usecachedtoken: | |
691 | ||
692 | /* don't ask. Something about AIX. We're leaving it here.*/ | |
693 | /* write(2, "", 0); */ | |
694 | ||
695 | /* we try twice, because sometimes the first one fails. Dunno why, but it always works the second time */ | |
696 | ||
697 | if ((rc = ktc_SetToken(&child.server, &child.token, &child.client, 0))) { | |
698 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: settoken returned %s for %s -- trying again", | |
699 | error_message(rc), k5user); | |
700 | if ((rc = ktc_SetToken(&child.server, &child.token, &child.client, 0))) { | |
701 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: settoken2 returned %s for %s", | |
702 | error_message(rc), k5user); | |
703 | goto cleanup; | |
704 | } | |
705 | } | |
706 | ||
707 | cleanup: | |
c760f0a1 | 708 | if (use_client_credentials) |
709 | krb5_cc_close(child.kcontext, clientccache); | |
3f4fda20 | 710 | if ( v5credsp ) |
711 | krb5_free_cred_contents(child.kcontext, v5credsp); | |
712 | if ( increds.client ) | |
713 | krb5_free_principal (child.kcontext, increds.client); | |
714 | if ( increds.server ) | |
715 | krb5_free_principal (child.kcontext, increds.server); | |
716 | if ( krb5kt ) | |
717 | (void) krb5_kt_close(child.kcontext, krb5kt); | |
718 | if ( kprinc ) | |
719 | krb5_free_principal (child.kcontext, kprinc); | |
720 | ||
721 | if ( rc ) { | |
722 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth ending with %d", rc ); | |
723 | } else if ( kerror ) { | |
724 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth ending with krb5 error %d, %s", kerror, error_message(kerror)); | |
725 | } else { | |
726 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth ending ok"); | |
727 | } | |
728 | ||
729 | return kerror ? (int) kerror : (int) rc; | |
730 | ||
4e1ae1cd | 731 | } |
732 | ||
733 | ||
4480093f | 734 | int get_cfg_usertokens(waklog_config *cfg) |
735 | { | |
736 | if (cfg->usertokens==WAKLOG_UNSET) | |
737 | return 0; /* default */ | |
738 | return cfg->usertokens; | |
739 | } | |
740 | ||
741 | int get_cfg_protect(waklog_config *cfg) | |
742 | { | |
743 | if (cfg->protect==WAKLOG_UNSET) | |
744 | return 0; /* default */ | |
745 | return cfg->protect; | |
746 | } | |
747 | ||
748 | int get_cfg_disable_token_cache(waklog_config *cfg) | |
749 | { | |
750 | if (cfg->disable_token_cache==WAKLOG_UNSET) | |
751 | return 0; /* default */ | |
752 | return cfg->disable_token_cache; | |
753 | } | |
754 | ||
7193eb01 | 755 | |
3f4fda20 | 756 | static void * |
757 | waklog_create_server_config (MK_POOL * p, server_rec * s) | |
758 | { | |
759 | waklog_config *cfg; | |
760 | ||
761 | cfg = (waklog_config *) ap_pcalloc (p, sizeof (waklog_config)); | |
762 | cfg->p = p; | |
763 | memset(cfg, 0, sizeof(waklog_config)); | |
764 | cfg->path = "(server)"; | |
765 | cfg->protect = WAKLOG_UNSET; | |
766 | cfg->usertokens = WAKLOG_UNSET; | |
21a7788b | 767 | cfg->disable_token_cache = WAKLOG_UNSET; |
5d0827ae | 768 | cfg->keytab = NULL; |
769 | cfg->principal = NULL; | |
770 | cfg->default_principal = NULL; | |
771 | cfg->default_keytab = NULL; | |
772 | cfg->afs_cell = NULL; | |
773 | cfg->afs_cell_realm = NULL; | |
3f4fda20 | 774 | cfg->forked = 0; |
775 | cfg->configured = 0; | |
776 | ||
777 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, | |
42d78dfb | 778 | "mod_waklog: server config created."); |
3f4fda20 | 779 | |
780 | return (cfg); | |
781 | } | |
7193eb01 | 782 | |
3f4fda20 | 783 | /* initialize with host-config information */ |
58bbdc54 | 784 | |
3f4fda20 | 785 | static void * |
786 | waklog_create_dir_config (MK_POOL * p, char *dir) | |
787 | { | |
788 | waklog_config *cfg; | |
789 | ||
790 | cfg = (waklog_config *) ap_pcalloc (p, sizeof (waklog_config)); | |
791 | memset(cfg, 0, sizeof(waklog_config)); | |
792 | cfg->p = p; | |
793 | cfg->path = ap_pstrdup(p, dir ); | |
794 | cfg->protect = WAKLOG_UNSET; | |
795 | cfg->usertokens = WAKLOG_UNSET; | |
21a7788b | 796 | cfg->disable_token_cache = WAKLOG_UNSET; |
5d0827ae | 797 | cfg->keytab = NULL; |
798 | cfg->principal = NULL; | |
799 | cfg->default_principal = NULL; | |
800 | cfg->default_keytab = NULL; | |
801 | cfg->afs_cell = NULL; | |
802 | cfg->afs_cell_realm = NULL; | |
3f4fda20 | 803 | cfg->forked = 0; |
804 | cfg->configured = 0; | |
805 | ||
806 | return (cfg); | |
58bbdc54 | 807 | } |
808 | ||
3f4fda20 | 809 | static void *waklog_merge_dir_config(MK_POOL *p, void *parent_conf, void *newloc_conf) { |
58bbdc54 | 810 | |
3f4fda20 | 811 | waklog_config *merged = ( waklog_config * ) ap_pcalloc(p, sizeof(waklog_config ) ); |
812 | waklog_config *parent = ( waklog_config * ) parent_conf; | |
813 | waklog_config *child = ( waklog_config * ) newloc_conf; | |
814 | ||
815 | merged->protect = child->protect != WAKLOG_UNSET ? child->protect : parent->protect; | |
816 | ||
5d0827ae | 817 | merged->path = child->path != NULL ? child->path : parent->path; |
3f4fda20 | 818 | |
819 | merged->usertokens = child->usertokens != WAKLOG_UNSET ? child->usertokens : parent->usertokens; | |
21a7788b | 820 | |
821 | merged->disable_token_cache = child->disable_token_cache != WAKLOG_UNSET ? child->disable_token_cache : parent->disable_token_cache; | |
3f4fda20 | 822 | |
5d0827ae | 823 | merged->principal = child->principal != NULL ? child->principal : parent->principal; |
3f4fda20 | 824 | |
5d0827ae | 825 | merged->keytab = child->keytab != NULL ? child->keytab : parent->keytab; |
3f4fda20 | 826 | |
5d0827ae | 827 | merged->default_keytab = child->default_keytab != NULL ? child->default_keytab : parent->default_keytab; |
3f4fda20 | 828 | |
5d0827ae | 829 | merged->default_principal = child->default_principal != NULL ? child->default_principal : parent->default_principal; |
3f4fda20 | 830 | |
5d0827ae | 831 | merged->afs_cell = child->afs_cell != NULL ? child->afs_cell : parent->afs_cell; |
98534230 | 832 | |
5d0827ae | 833 | merged->afs_cell_realm = child->afs_cell_realm != NULL ? child->afs_cell_realm : parent->afs_cell_realm; |
3f4fda20 | 834 | |
835 | return (void *) merged; | |
836 | ||
837 | } | |
58bbdc54 | 838 | |
3f4fda20 | 839 | static void *waklog_merge_server_config(MK_POOL *p, void *parent_conf, void *newloc_conf) { |
58bbdc54 | 840 | |
3f4fda20 | 841 | waklog_config *merged = ( waklog_config * ) ap_pcalloc(p, sizeof(waklog_config ) ); |
842 | waklog_config *pconf = ( waklog_config * ) parent_conf; | |
843 | waklog_config *nconf = ( waklog_config * ) newloc_conf; | |
844 | ||
845 | merged->protect = nconf->protect == WAKLOG_UNSET ? pconf->protect : nconf->protect; | |
58bbdc54 | 846 | |
3f4fda20 | 847 | merged->usertokens = nconf->usertokens == WAKLOG_UNSET ? pconf->usertokens : nconf->usertokens; |
58bbdc54 | 848 | |
bce7d4d9 | 849 | merged->disable_token_cache = nconf->disable_token_cache == WAKLOG_UNSET ? pconf->disable_token_cache : nconf->disable_token_cache; |
21a7788b | 850 | |
5d0827ae | 851 | merged->keytab = nconf->keytab == NULL ? ap_pstrdup(p, pconf->keytab) : |
852 | ( nconf->keytab == NULL ? NULL : ap_pstrdup(p, nconf->keytab) ); | |
3f4fda20 | 853 | |
5d0827ae | 854 | merged->principal = nconf->principal == NULL ? ap_pstrdup(p, pconf->principal) : |
855 | ( nconf->principal == NULL ? NULL : ap_pstrdup(p, nconf->principal) ); | |
3f4fda20 | 856 | |
5d0827ae | 857 | merged->afs_cell = nconf->afs_cell == NULL ? ap_pstrdup(p, pconf->afs_cell) : |
858 | ( nconf->afs_cell == NULL ? NULL : ap_pstrdup(p, nconf->afs_cell) ); | |
3f4fda20 | 859 | |
5d0827ae | 860 | merged->afs_cell_realm = nconf->afs_cell_realm == NULL ? ap_pstrdup(p, pconf->afs_cell_realm) : |
861 | ( nconf->afs_cell_realm == NULL ? NULL : ap_pstrdup(p, nconf->afs_cell_realm) ); | |
98534230 | 862 | |
5d0827ae | 863 | merged->default_keytab = nconf->default_keytab == NULL ? ap_pstrdup(p, pconf->default_keytab) : |
864 | ( nconf->default_keytab == NULL ? NULL : ap_pstrdup(p, nconf->default_keytab) ); | |
58bbdc54 | 865 | |
5d0827ae | 866 | merged->default_principal = nconf->default_principal == NULL ? ap_pstrdup(p, pconf->default_principal) : |
867 | ( nconf->default_principal == NULL ? NULL : ap_pstrdup(p, nconf->default_principal) ); | |
3f4fda20 | 868 | |
869 | ||
870 | return (void *) merged; | |
871 | ||
872 | } | |
873 | ||
874 | static const char * | |
21a7788b | 875 | set_waklog_enabled (cmd_parms * params, void *mconfig, int flag) |
58bbdc54 | 876 | { |
3f4fda20 | 877 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
878 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
879 | ||
880 | cfg->protect = flag; | |
881 | cfg->configured = 1; | |
882 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, | |
21a7788b | 883 | "mod_waklog: waklog_enabled set on %s", cfg->path ? cfg->path : "NULL"); |
3f4fda20 | 884 | return (NULL); |
885 | } | |
58bbdc54 | 886 | |
7193eb01 | 887 | |
3f4fda20 | 888 | /* this adds a principal/keytab pair to get their tokens renewed by the |
889 | child process every few centons. */ | |
7193eb01 | 890 | |
3f4fda20 | 891 | void add_to_renewtable(MK_POOL *p, char *keytab, char *principal) { |
87822447 | 892 | |
3f4fda20 | 893 | int i; |
894 | ||
895 | if ( renewcount >= SHARED_TABLE_SIZE ) { | |
896 | log_error(APLOG_MARK, APLOG_DEBUG, 0, NULL, "mod_waklog: big problem. Increase the SHARED_TABLE_SIZE or \ | |
897 | decrease your tokens."); | |
b74fad73 | 898 | return; |
3f4fda20 | 899 | } |
900 | ||
901 | /* check to see if it's already there */ | |
902 | ||
903 | for ( i = 0; i < renewcount; i++ ) { | |
904 | if ( ! strcmp(renewtable[i].principal, principal ) ) { | |
905 | return; | |
906 | } | |
907 | } | |
908 | ||
909 | renewtable[renewcount].keytab = ap_pstrdup(p, keytab); | |
910 | renewtable[renewcount].principal = ap_pstrdup(p, principal); | |
911 | renewtable[renewcount].lastrenewed = 0; | |
912 | ++renewcount; | |
913 | ||
b74fad73 | 914 | } |
915 | ||
3f4fda20 | 916 | static const char * |
21a7788b | 917 | set_waklog_location_principal (cmd_parms *params, void *mconfig, char *principal, char *keytab) |
3f4fda20 | 918 | { |
919 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : | |
920 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
921 | ||
922 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, | |
42d78dfb | 923 | "mod_waklog: configuring principal: %s, keytab: %s", principal, keytab); |
924 | ||
925 | cfg->principal = ap_pstrdup(params->pool, principal); | |
3f4fda20 | 926 | cfg->keytab = ap_pstrdup (params->pool, keytab); |
927 | ||
928 | add_to_renewtable(params->pool, keytab, principal); | |
929 | ||
930 | cfg->configured = 1; | |
931 | ||
932 | return (NULL); | |
933 | } | |
b74fad73 | 934 | |
3f4fda20 | 935 | static const char * |
21a7788b | 936 | set_waklog_afs_cell (cmd_parms * params, void *mconfig, char *file) |
313dde40 | 937 | { |
891fb458 | 938 | waklog_config *waklog_mconfig = ( waklog_config * ) mconfig; |
939 | waklog_config *waklog_srvconfig = | |
3f4fda20 | 940 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
941 | ||
891fb458 | 942 | log_error (APLOG_MARK, APLOG_INFO, 0, params->server, |
42d78dfb | 943 | "mod_waklog: will use afs_cell: %s", file); |
313dde40 | 944 | |
678051d7 | 945 | // Prefer afs/cell@REALM over afs@REALM, just like the OpenAFS tools |
946 | waklog_srvconfig->cell_in_principal = 1; | |
947 | ||
891fb458 | 948 | waklog_srvconfig->afs_cell = ap_pstrdup (params->pool, file); |
949 | waklog_srvconfig->configured = 1; | |
950 | ||
951 | if (waklog_mconfig != NULL) { | |
c8563f50 | 952 | waklog_mconfig->cell_in_principal = waklog_srvconfig->cell_in_principal; |
891fb458 | 953 | waklog_mconfig->afs_cell = ap_pstrdup (params->pool, file); |
954 | waklog_mconfig->configured = 1; | |
955 | } | |
3f4fda20 | 956 | return (NULL); |
957 | } | |
58bbdc54 | 958 | |
98534230 | 959 | static const char * |
960 | set_waklog_afs_cell_realm (cmd_parms * params, void *mconfig, char *file) | |
961 | { | |
962 | waklog_config *waklog_mconfig = ( waklog_config * ) mconfig; | |
963 | waklog_config *waklog_srvconfig = | |
964 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
965 | ||
966 | log_error (APLOG_MARK, APLOG_INFO, 0, params->server, | |
967 | "mod_waklog: will use afs_cell_realm: %s", file); | |
968 | ||
969 | waklog_srvconfig->afs_cell_realm = ap_pstrdup (params->pool, file); | |
970 | ||
971 | if (waklog_mconfig != NULL) { | |
972 | waklog_mconfig->afs_cell_realm = ap_pstrdup (params->pool, file); | |
973 | } | |
974 | return (NULL); | |
975 | } | |
976 | ||
3f4fda20 | 977 | static const char * |
978 | set_waklog_default_principal (cmd_parms * params, void *mconfig, char *principal, char *keytab) | |
979 | { | |
980 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : | |
981 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
58bbdc54 | 982 | |
3f4fda20 | 983 | waklog_config *srvcfg = ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
4e1ae1cd | 984 | |
3f4fda20 | 985 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb | 986 | "mod_waklog: set default princ/keytab: %s, %s for %s", principal, keytab, cfg->path ? cfg->path : "NULL"); |
313dde40 | 987 | |
3f4fda20 | 988 | cfg->default_principal = ap_pstrdup (params->pool, principal); |
989 | cfg->default_keytab = ap_pstrdup(params->pool, keytab ); | |
990 | ||
991 | /* this also gets set at the server level */ | |
992 | if ( mconfig && ( ! cfg->path ) ) { | |
993 | srvcfg->default_principal = ap_pstrdup (params->pool, principal); | |
994 | srvcfg->default_keytab = ap_pstrdup(params->pool, keytab ); | |
995 | } else { | |
996 | log_error(APLOG_MARK, APLOG_ERR, 0, params->server, "only able to set default principal on a global level!"); | |
997 | return "Unable to set DefaultPrincipal outside of top level config!"; | |
998 | } | |
999 | ||
1000 | add_to_renewtable( params->pool, keytab, principal ); | |
1001 | ||
1002 | cfg->configured = 1; | |
1003 | ||
1004 | return (NULL); | |
1005 | } | |
313dde40 | 1006 | |
3f4fda20 | 1007 | static const char * |
1008 | set_waklog_use_usertokens (cmd_parms * params, void *mconfig, int flag) | |
bed98ff9 | 1009 | { |
3f4fda20 | 1010 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
1011 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
bed98ff9 | 1012 | |
3f4fda20 | 1013 | cfg->usertokens = flag; |
bed98ff9 | 1014 | |
3f4fda20 | 1015 | cfg->configured = 1; |
bed98ff9 | 1016 | |
3f4fda20 | 1017 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb | 1018 | "mod_waklog: waklog_use_user_tokens set"); |
3f4fda20 | 1019 | return (NULL); |
bed98ff9 | 1020 | } |
1021 | ||
1022 | ||
21a7788b | 1023 | static const char * |
1024 | set_waklog_disable_token_cache (cmd_parms * params, void *mconfig, int flag) | |
1025 | { | |
1026 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : | |
1027 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
1028 | ||
1029 | cfg->disable_token_cache = flag; | |
1030 | ||
1031 | cfg->configured = 1; | |
1032 | ||
1033 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, | |
1034 | "mod_waklog: waklog_disable_token_cache set"); | |
1035 | return (NULL); | |
1036 | } | |
1037 | ||
1038 | ||
c9d59a9c | 1039 | #ifndef APACHE2 |
3f4fda20 | 1040 | static void waklog_child_exit( server_rec *s, MK_POOL *p ) { |
1041 | #else | |
1042 | apr_status_t waklog_child_exit( void *sr ) { | |
4e1ae1cd | 1043 | |
3f4fda20 | 1044 | server_rec *s = (server_rec *) sr; |
1045 | #endif | |
1046 | ||
1047 | if ( child.ccache ) { | |
1048 | krb5_cc_close(child.kcontext, child.ccache); | |
1049 | } | |
1050 | ||
1051 | if ( child.kcontext ) { | |
1052 | krb5_free_context(child.kcontext); | |
1053 | } | |
1054 | ||
1055 | /* forget our tokens */ | |
1056 | ||
1057 | ktc_ForgetAllTokens (); | |
1058 | ||
1059 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, | |
42d78dfb | 1060 | "mod_waklog: waklog_child_exit complete"); |
4e1ae1cd | 1061 | |
c9d59a9c | 1062 | #ifdef APACHE2 |
3f4fda20 | 1063 | return APR_SUCCESS; |
1064 | #endif | |
1065 | ||
1066 | } | |
4e1ae1cd | 1067 | |
3f4fda20 | 1068 | static void |
c9d59a9c | 1069 | #ifdef APACHE2 |
3f4fda20 | 1070 | waklog_child_init (MK_POOL * p, server_rec * s) |
1071 | #else | |
1072 | waklog_child_init (server_rec * s, MK_POOL * p) | |
1073 | #endif | |
1074 | { | |
b52ccbb1 | 1075 | |
3f4fda20 | 1076 | krb5_error_code code; |
1077 | waklog_config *cfg; | |
1078 | ||
1079 | char *cell; | |
1080 | ||
3f4fda20 | 1081 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init called for pid %d", getpid()); |
1082 | ||
1083 | if ( !sharedspace ) { | |
1084 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: child_init called without shared space? %d", getpid()); | |
1085 | return; | |
1086 | } | |
1087 | ||
1088 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init called for pid %d", getpid()); | |
7193eb01 | 1089 | |
3f4fda20 | 1090 | memset (&child, 0, sizeof(child)); |
1091 | ||
c760f0a1 | 1092 | if ( ( code = krb5_init_context(&child.kcontext) ) ) { |
3f4fda20 | 1093 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't init kerberos context %d", code ); |
1094 | } | |
1095 | ||
c760f0a1 | 1096 | if ( ( code = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) ) { |
3f4fda20 | 1097 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", code ); |
1098 | } | |
1099 | ||
1100 | if ( pag_for_children ) { | |
1101 | setpag (); | |
1102 | } | |
7193eb01 | 1103 | |
3f4fda20 | 1104 | getModConfig (cfg, s); |
7193eb01 | 1105 | |
5d0827ae | 1106 | if ( cfg->default_principal != NULL ) { |
3f4fda20 | 1107 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init setting default user %s, %s", cfg->default_principal, cfg->default_keytab); |
1108 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1109 | } | |
7193eb01 | 1110 | |
891fb458 | 1111 | cell = strdup(cfg->afs_cell); |
3f4fda20 | 1112 | pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR, cell ); |
7193eb01 | 1113 | |
c9d59a9c | 1114 | #ifdef APACHE2 |
3f4fda20 | 1115 | apr_pool_cleanup_register(p, s, waklog_child_exit, apr_pool_cleanup_null); |
1116 | #endif | |
7193eb01 | 1117 | |
3f4fda20 | 1118 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb | 1119 | "mod_waklog: child_init returned"); |
7193eb01 | 1120 | |
3f4fda20 | 1121 | return; |
1122 | } | |
b52ccbb1 | 1123 | |
3f4fda20 | 1124 | command_rec waklog_cmds[] = { |
1125 | ||
21a7788b | 1126 | command ("WaklogAFSCell", set_waklog_afs_cell, 0, TAKE1, |
1127 | "Use the supplied AFS cell (required)"), | |
7193eb01 | 1128 | |
98534230 | 1129 | command ("WaklogAFSCellRealm", set_waklog_afs_cell_realm, 0, TAKE1, |
1130 | "Assume that the AFS cell belongs to the specified Kerberos realm (optional)"), | |
1131 | ||
21a7788b | 1132 | command ("WaklogEnabled", set_waklog_enabled, 0, FLAG, |
1133 | "enable waklog on a server, location, or directory basis"), | |
7193eb01 | 1134 | |
21a7788b | 1135 | command ("WaklogDefaultPrincipal", set_waklog_default_principal, 0, TAKE2, |
1136 | "Set the default principal that the server runs as"), | |
7193eb01 | 1137 | |
21a7788b | 1138 | command ("WaklogLocationPrincipal", set_waklog_location_principal, 0, TAKE2, |
1139 | "Set the principal on a <Location>-specific basis"), | |
7193eb01 | 1140 | |
21a7788b | 1141 | command ("WaklogDisableTokenCache", set_waklog_disable_token_cache, 0, FLAG, |
1142 | "Ignore the token cache (location-specific); useful for scripts that need kerberos tickets."), | |
1143 | ||
1144 | command ("WaklogUseUserTokens", set_waklog_use_usertokens, 0, FLAG, | |
1145 | "Use the requesting user tokens (from webauth)"), | |
1146 | ||
3f4fda20 | 1147 | {NULL} |
1148 | }; | |
7193eb01 | 1149 | |
7193eb01 | 1150 | |
3f4fda20 | 1151 | /* not currently using this */ |
7193eb01 | 1152 | |
3f4fda20 | 1153 | static int |
1154 | token_cleanup (void *data) | |
1155 | { | |
1156 | request_rec *r = (request_rec *) data; | |
e2df6441 | 1157 | |
3f4fda20 | 1158 | if (child.token.ticketLen) |
1159 | { | |
1160 | memset (&child.token, 0, sizeof (struct ktc_token)); | |
e21f34f0 | 1161 | |
3f4fda20 | 1162 | ktc_ForgetAllTokens (); |
7193eb01 | 1163 | |
3f4fda20 | 1164 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1165 | "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", |
1166 | getpid ()); | |
3f4fda20 | 1167 | } |
1168 | return 0; | |
7193eb01 | 1169 | } |
1170 | ||
3f4fda20 | 1171 | static int |
1172 | waklog_child_routine (void *data, child_info * pinfo) | |
7193eb01 | 1173 | { |
3f4fda20 | 1174 | int i; |
1175 | server_rec *s = (server_rec *) data; | |
1176 | krb5_error_code code; | |
1177 | char *cell; | |
1178 | time_t sleep_time = ( TKT_LIFE / 2 ) ; | |
1179 | time_t when; | |
1180 | time_t left; | |
1181 | waklog_config *cfg; | |
1182 | ||
1183 | getModConfig( cfg, s ); | |
1184 | ||
1185 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: waklog_child_routine started, running as %d", getuid()); | |
1186 | ||
1187 | memset (&child, 0, sizeof(child)); | |
1188 | ||
c760f0a1 | 1189 | if ( ( code = krb5_init_context(&child.kcontext) ) ) { |
3f4fda20 | 1190 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't init kerberos context %d", code ); |
1191 | } | |
1192 | ||
c760f0a1 | 1193 | if ( ( code = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) ) { |
3f4fda20 | 1194 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", code ); |
1195 | } | |
1196 | ||
c760f0a1 | 1197 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: about to pr_Initialize"); |
1198 | ||
3f4fda20 | 1199 | /* need to do this so we can make PTS calls */ |
891fb458 | 1200 | cell = strdup(cfg->afs_cell); /* stupid */ |
3f4fda20 | 1201 | pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR, cell ); |
c760f0a1 | 1202 | |
1203 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: still here"); | |
1204 | ||
3f4fda20 | 1205 | while(1) { |
1206 | ||
1207 | for ( i = 0; i < renewcount; ++i ) { | |
1208 | renewtable[i].lastrenewed = time(0); | |
1209 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: (pid %d) renewing %s / %s", getpid(), renewtable[i].principal, | |
1210 | renewtable[i].keytab); | |
1211 | ||
1212 | set_auth( s, NULL, 0, renewtable[i].principal, renewtable[i].keytab, 1 ); | |
1213 | ||
1214 | /* if this is our default token, we want to "stash" it in our current PAG so the parent maintains readability of | |
1215 | things that it needs to read */ | |
1216 | ||
1217 | if ( cfg && cfg->default_principal && ( ! strcmp(cfg->default_principal, renewtable[i].principal ) ) ) { | |
1218 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: renewing/setting default tokens" ); | |
1219 | set_auth( s, NULL, 0, renewtable[i].principal, renewtable[i].keytab, 0 ); | |
1220 | } | |
1221 | ||
4e1ae1cd | 1222 | } |
1223 | ||
3f4fda20 | 1224 | sharedspace->renewcount++; |
1225 | ||
1226 | left = sleep_time; | |
1227 | ||
1228 | while( left > 5 ) { | |
1229 | when = time(0); | |
1230 | ||
1231 | sleep(left); | |
1232 | ||
1233 | left -= ( time(0) - when ); | |
4e1ae1cd | 1234 | } |
3f4fda20 | 1235 | |
1236 | } | |
4e1ae1cd | 1237 | |
3f4fda20 | 1238 | pr_End(); |
403921ef | 1239 | |
3f4fda20 | 1240 | } |
4e1ae1cd | 1241 | |
c9d59a9c | 1242 | #ifdef APACHE2 |
3f4fda20 | 1243 | static int |
1244 | waklog_init_handler (apr_pool_t * p, apr_pool_t * plog, | |
42d78dfb | 1245 | apr_pool_t * ptemp, server_rec * s) |
3f4fda20 | 1246 | { |
1247 | int rv; | |
1248 | extern char *version; | |
1249 | apr_proc_t *proc; | |
1250 | waklog_config *cfg; | |
1251 | void *data; | |
1252 | int fd = -1; | |
1253 | int use_existing = 1; | |
1254 | int oldrenewcount; | |
1255 | char cache_file[MAXNAMELEN]; | |
1256 | #ifdef use_pthreads | |
1257 | pthread_rwlockattr_t rwlock_attr; | |
1258 | #endif | |
4e1ae1cd | 1259 | |
1260 | ||
3f4fda20 | 1261 | getModConfig (cfg, s); |
4e1ae1cd | 1262 | |
3f4fda20 | 1263 | /* initialize_module() will be called twice, and if it's a DSO |
1264 | * then all static data from the first call will be lost. Only | |
1265 | * set up our static data on the second call. | |
1266 | * see http://issues.apache.org/bugzilla/show_bug.cgi?id=37519 */ | |
1267 | apr_pool_userdata_get (&data, userdata_key, s->process->pool); | |
7193eb01 | 1268 | |
891fb458 | 1269 | |
1270 | if (cfg->afs_cell==NULL) { | |
1271 | log_error (APLOG_MARK, APLOG_ERR, 0, s, | |
21a7788b | 1272 | "mod_waklog: afs_cell==NULL; please provide the WaklogAFSCell directive"); |
891fb458 | 1273 | /** clobber apache */ |
1274 | exit(-1); | |
1275 | } | |
1276 | ||
3f4fda20 | 1277 | if (!data) |
1278 | { | |
1279 | apr_pool_userdata_set ((const void *) 1, userdata_key, | |
42d78dfb | 1280 | apr_pool_cleanup_null, s->process->pool); |
4e1ae1cd | 1281 | } |
3f4fda20 | 1282 | else |
1283 | { | |
1284 | log_error (APLOG_MARK, APLOG_INFO, 0, s, | |
891fb458 | 1285 | "mod_waklog: version %s initialized for cell %s", version, cfg->afs_cell); |
3f4fda20 | 1286 | |
1287 | if ( sharedspace ) { | |
1288 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: shared memory already allocated." ); | |
1289 | } else { | |
1290 | ||
1291 | snprintf( cache_file, MAXNAMELEN, "/tmp/waklog_cache.%d", getpid() ); | |
1292 | ||
1293 | if ( ( fd = open( cache_file, O_RDWR, 0600 ) ) == -1 ) { | |
1294 | ||
1295 | if ( errno == ENOENT ) { | |
1296 | ||
1297 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: creating shared token cache file %s", cache_file ); | |
1298 | use_existing = 0; | |
1299 | if ( ( fd = open( cache_file, O_RDWR|O_CREAT|O_TRUNC, 0600 ) ) == -1 ) { | |
1300 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file, errno ); | |
1301 | exit(errno); | |
1302 | } | |
1303 | } else { | |
1304 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file, errno ); | |
1305 | } | |
1306 | } | |
1307 | ||
1308 | if ( use_existing == 0 ) { | |
1309 | struct sharedspace_s bob; | |
1310 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: sizing our cache file %d to %d", fd, sizeof(struct sharedspace_s) ); | |
1311 | memset( &bob, 0, sizeof(struct sharedspace_s)); | |
1312 | write(fd, &bob, sizeof(struct sharedspace_s)); | |
1313 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s) ); | |
1314 | } | |
1315 | ||
1316 | /* mmap the region */ | |
1317 | ||
1318 | if ( ( sharedspace = (struct sharedspace_s *) mmap ( NULL, sizeof(struct sharedspace_s), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0 ) ) != MAP_FAILED ) { | |
4cd4a5af | 1319 | int err = 0; |
3f4fda20 | 1320 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared mmap region ok %d", sharedspace ); |
4cd4a5af | 1321 | err = unlink(cache_file); |
1322 | if (err) { | |
1323 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: unable to delete %s due to %d", cache_file, errno); | |
1324 | } else { | |
95ad25b8 | 1325 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared cache unlinked (will be deleted when Apache quits)"); |
4cd4a5af | 1326 | } |
3f4fda20 | 1327 | } else { |
1328 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: mmap failed %d", errno ); | |
1329 | exit(errno); | |
1330 | } | |
1331 | } | |
4e1ae1cd | 1332 | |
3f4fda20 | 1333 | #ifdef use_pthreads |
1334 | #define locktype pthread_rwlock_t | |
1335 | #else | |
1336 | #define locktype rwlock_t | |
1337 | #endif | |
4e1ae1cd | 1338 | |
3f4fda20 | 1339 | if ( sharedlock = ( locktype * ) mmap ( NULL, sizeof(locktype), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0 ) ) { |
1340 | #ifndef use_pthreads | |
1341 | rwlock_init(sharedlock, USYNC_PROCESS, NULL ); | |
1342 | #else | |
1343 | pthread_rwlockattr_init(&rwlock_attr); | |
1344 | pthread_rwlockattr_setpshared(&rwlock_attr, PTHREAD_PROCESS_SHARED); | |
1345 | pthread_rwlock_init(sharedlock, &rwlock_attr ); | |
1346 | #endif | |
1347 | } else { | |
1348 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: rwlock mmap failed %d", errno ); | |
1349 | } | |
58bbdc54 | 1350 | |
3f4fda20 | 1351 | #undef locktype |
7193eb01 | 1352 | |
3f4fda20 | 1353 | /* set our default tokens */ |
403921ef | 1354 | |
3f4fda20 | 1355 | oldrenewcount = sharedspace->renewcount; |
7193eb01 | 1356 | |
3f4fda20 | 1357 | pag_for_children = 0; |
7193eb01 | 1358 | |
3f4fda20 | 1359 | proc = (apr_proc_t *) ap_pcalloc (s->process->pool, sizeof (apr_proc_t)); |
7193eb01 | 1360 | |
3f4fda20 | 1361 | rv = apr_proc_fork (proc, s->process->pool); |
7193eb01 | 1362 | |
3f4fda20 | 1363 | if (rv == APR_INCHILD) |
42d78dfb | 1364 | { |
1365 | waklog_child_routine (s, NULL); | |
1366 | } | |
3f4fda20 | 1367 | else |
42d78dfb | 1368 | { |
1369 | apr_pool_note_subprocess (s->process->pool, proc, APR_KILL_ALWAYS); | |
1370 | } | |
3f4fda20 | 1371 | /* parent and child */ |
1372 | cfg->forked = proc->pid; | |
1373 | pag_for_children = 1; | |
1374 | ||
1375 | if ( use_existing == 0 ) { | |
1376 | /* wait here until our child process has gone and done it's renewing thing. */ | |
1377 | while( sharedspace->renewcount == oldrenewcount ) { | |
1378 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: waiting for tokens..." ); | |
1379 | sleep(2); | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | if ( cfg->default_principal ) { | |
1384 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1385 | } | |
1386 | } | |
1387 | return 0; | |
1388 | } | |
ebb1f61c | 1389 | #else |
3f4fda20 | 1390 | static void |
1391 | waklog_init (server_rec * s, MK_POOL * p) | |
1392 | { | |
1393 | extern char *version; | |
1394 | int pid; | |
1395 | waklog_config *cfg; | |
3f4fda20 | 1396 | int fd = -1; |
1397 | int use_existing = 1; | |
1398 | int oldrenewcount; | |
1399 | char cache_file[MAXNAMELEN]; | |
1400 | #ifdef use_pthreads | |
1401 | pthread_rwlockattr_t rwlock_attr; | |
ebb1f61c | 1402 | #endif |
7193eb01 | 1403 | |
3f4fda20 | 1404 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb | 1405 | "mod_waklog: version %s initialized.", version); |
7193eb01 | 1406 | |
3f4fda20 | 1407 | if ( sharedspace ) { |
1408 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: shared memory already allocated." ); | |
1409 | } else { | |
1410 | ||
1411 | snprintf( cache_file, MAXNAMELEN, "/tmp/waklog_cache.%d", getpid() ); | |
1412 | ||
1413 | if ( ( fd = open( cache_file, O_RDWR, 0600 ) ) == -1 ) { | |
1414 | ||
1415 | if ( errno == ENOENT ) { | |
1416 | ||
1417 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: creating shared token cache file %s", cache_file ); | |
1418 | use_existing = 0; | |
1419 | if ( ( fd = open( cache_file, O_RDWR|O_CREAT|O_TRUNC, 0600 ) ) == -1 ) { | |
1420 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file, errno ); | |
1421 | exit(errno); | |
1422 | } | |
1423 | } else { | |
1424 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file, errno ); | |
1425 | } | |
1426 | ||
1427 | } | |
1428 | ||
1429 | if ( use_existing == 0 ) { | |
1430 | struct sharedspace_s bob; | |
1431 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: sizing our cache file %d to %d", fd, sizeof(struct sharedspace_s) ); | |
1432 | memset( &bob, 0, sizeof(struct sharedspace_s)); | |
1433 | write(fd, &bob, sizeof(struct sharedspace_s)); | |
1434 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s) ); | |
1435 | } | |
4e1ae1cd | 1436 | |
3f4fda20 | 1437 | /* mmap the region */ |
1438 | ||
c760f0a1 | 1439 | if ( ( sharedspace = (struct sharedspace_s *) mmap ( NULL, sizeof(struct sharedspace_s), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0 ) ) != (void *) -1 ) { |
3f4fda20 | 1440 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared mmap region ok %d", sharedspace ); |
1441 | close(fd); | |
1442 | } else { | |
1443 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: mmap failed %d", errno ); | |
1444 | exit(errno); | |
1445 | } | |
1446 | } | |
e21f34f0 | 1447 | |
3f4fda20 | 1448 | #ifdef use_pthreads |
1449 | #define locktype pthread_rwlock_t | |
1450 | #else | |
1451 | #define locktype rwlock_t | |
ea3e8708 | 1452 | #endif |
e21f34f0 | 1453 | |
3f4fda20 | 1454 | /* mmap our shared space for our lock */ |
c760f0a1 | 1455 | if ( ( sharedlock = ( locktype * ) mmap ( NULL, sizeof(locktype), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0 ) ) ) { |
3f4fda20 | 1456 | #ifndef use_pthreads |
1457 | rwlock_init(sharedlock, USYNC_PROCESS, NULL ); | |
1458 | #else | |
1459 | pthread_rwlockattr_init(&rwlock_attr); | |
1460 | pthread_rwlockattr_setpshared(&rwlock_attr, PTHREAD_PROCESS_SHARED); | |
1461 | pthread_rwlock_init(sharedlock, &rwlock_attr ); | |
1462 | #endif | |
1463 | } else { | |
1464 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: rwlock mmap failed %d", errno ); | |
1465 | } | |
e21f34f0 | 1466 | |
3f4fda20 | 1467 | #undef locktype |
e21f34f0 | 1468 | |
3f4fda20 | 1469 | /* set our default tokens */ |
1470 | ||
1471 | getModConfig (cfg, s); | |
42d78dfb | 1472 | |
1473 | oldrenewcount = sharedspace->renewcount; | |
1474 | ||
1475 | pag_for_children = 0; | |
1476 | ||
1477 | pid = ap_bspawn_child (p, waklog_child_routine, s, kill_always, | |
1478 | NULL, NULL, NULL); | |
1479 | ||
1480 | pag_for_children = 1; | |
1481 | ||
3f4fda20 | 1482 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb | 1483 | "mod_waklog: ap_bspawn_child: %d.", pid); |
3f4fda20 | 1484 | |
1485 | if ( use_existing == 0 ) { | |
1486 | /* wait here until our child process has gone and done it's renewing thing. */ | |
1487 | while( sharedspace->renewcount == oldrenewcount ) { | |
1488 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: waiting for tokens..." ); | |
1489 | sleep(2); | |
87822447 | 1490 | } |
3f4fda20 | 1491 | } |
1492 | ||
1493 | if ( cfg->default_principal ) { | |
1494 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1495 | } | |
1496 | ||
87822447 | 1497 | } |
3f4fda20 | 1498 | #endif |
1499 | ||
1500 | static int | |
1501 | waklog_phase0 (request_rec * r) | |
e21f34f0 | 1502 | { |
3f4fda20 | 1503 | waklog_config *cfg; |
e21f34f0 | 1504 | |
3f4fda20 | 1505 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1506 | "mod_waklog: phase0 called"); |
3f4fda20 | 1507 | |
1508 | cfg = retrieve_config(r); | |
e21f34f0 | 1509 | |
4480093f | 1510 | if ( get_cfg_protect(cfg) && cfg->principal ) { |
3f4fda20 | 1511 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 using user %s", cfg->principal); |
1512 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); | |
1513 | } else if ( cfg->default_principal ) { | |
1514 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 using default user %s", cfg->default_principal); | |
1515 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1516 | } else { | |
c760f0a1 | 1517 | |
1518 | if (child.token.ticketLen) { | |
1519 | memset( &child.token, 0, sizeof (struct ktc_token) ); | |
1520 | ktc_ForgetAllTokens(); | |
1521 | } | |
1522 | ||
3f4fda20 | 1523 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 not doing nothin."); |
1524 | } | |
e21f34f0 | 1525 | |
3f4fda20 | 1526 | return DECLINED; |
e21f34f0 | 1527 | } |
4e1ae1cd | 1528 | |
3f4fda20 | 1529 | static int |
1530 | waklog_phase1 (request_rec * r) | |
bed98ff9 | 1531 | { |
3f4fda20 | 1532 | waklog_config *cfg; |
313dde40 | 1533 | |
3f4fda20 | 1534 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1535 | "mod_waklog: phase1 called"); |
7193eb01 | 1536 | |
3f4fda20 | 1537 | cfg = retrieve_config(r); |
313dde40 | 1538 | |
4480093f | 1539 | if ( get_cfg_protect(cfg) && cfg->principal ) { |
3f4fda20 | 1540 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 using user %s", cfg->principal); |
1541 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); | |
1542 | } else if ( cfg->default_principal ) { | |
1543 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 using default user %s", cfg->default_principal); | |
1544 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1545 | } else { | |
1546 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 not doing nothin."); | |
1547 | } | |
4e1ae1cd | 1548 | |
3f4fda20 | 1549 | return DECLINED; |
7193eb01 | 1550 | } |
4e1ae1cd | 1551 | |
3f4fda20 | 1552 | static int |
1553 | waklog_phase3 (request_rec * r) | |
7193eb01 | 1554 | { |
3f4fda20 | 1555 | waklog_config *cfg; |
1e18ef7d | 1556 | |
3f4fda20 | 1557 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1558 | "mod_waklog: phase 3 called"); |
1e18ef7d | 1559 | |
3f4fda20 | 1560 | cfg = retrieve_config(r); |
1561 | ||
4480093f | 1562 | if ( get_cfg_protect(cfg) && cfg->principal ) { |
3f4fda20 | 1563 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 using user %s", cfg->principal); |
1564 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); | |
1565 | } else if ( cfg->default_principal ) { | |
1566 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 using default user %s", cfg->default_principal); | |
1567 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1568 | } else { | |
1569 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 not doing nothin."); | |
1570 | } | |
1571 | ||
1572 | return DECLINED; | |
1573 | } | |
bed98ff9 | 1574 | |
3f4fda20 | 1575 | static int |
1576 | waklog_phase6 (request_rec * r) | |
1577 | { | |
1578 | waklog_config *cfg; | |
1579 | ||
1580 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, | |
42d78dfb | 1581 | "mod_waklog: phase6 called"); |
3f4fda20 | 1582 | |
1583 | cfg = retrieve_config(r); | |
1584 | ||
4480093f | 1585 | if ( get_cfg_protect(cfg) && cfg->principal ) { |
3f4fda20 | 1586 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 using user %s", cfg->principal); |
1587 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); | |
1588 | } else if ( cfg->default_principal ) { | |
1589 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 using default user %s", cfg->default_principal); | |
1590 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1591 | } else { | |
1592 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 not doing nothin."); | |
1593 | } | |
1594 | ||
1595 | return DECLINED; | |
1596 | } | |
bed98ff9 | 1597 | |
3f4fda20 | 1598 | static int |
1599 | waklog_phase7 (request_rec * r) | |
1600 | { | |
1601 | waklog_config *cfg; | |
1602 | int rc = 0; | |
1603 | ||
1604 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, | |
42d78dfb | 1605 | "mod_waklog: phase7 called"); |
3f4fda20 | 1606 | |
1607 | cfg = retrieve_config (r); | |
1608 | ||
4480093f | 1609 | if ( get_cfg_protect(cfg) && get_cfg_usertokens(cfg) ) { |
3f4fda20 | 1610 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using usertokens"); |
1611 | rc = set_auth( r->server, r, 1, NULL, NULL, 0); | |
4480093f | 1612 | } else if ( get_cfg_protect(cfg) && cfg->principal ) { |
3f4fda20 | 1613 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using user %s", cfg->principal); |
1614 | rc = set_auth( r->server, r, 0, cfg->principal, cfg->keytab, 0); | |
1615 | } else if ( cfg->default_principal ) { | |
1616 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using default user %s", cfg->default_principal); | |
1617 | rc = set_auth( r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
d3bea354 | 1618 | } else { |
c760f0a1 | 1619 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: no tokens"); |
1620 | if (child.token.ticketLen) { | |
1621 | memset(&child.token, 0, sizeof(struct ktc_token)); | |
1622 | ktc_ForgetAllTokens(); | |
1623 | } | |
3f4fda20 | 1624 | } |
1625 | ||
1626 | if ( rc ) { | |
1627 | return 400; | |
1628 | } | |
1629 | ||
1630 | return DECLINED; | |
1631 | } | |
87822447 | 1632 | |
3f4fda20 | 1633 | static int |
1634 | waklog_phase9 (request_rec * r) | |
1635 | { | |
1636 | waklog_config *cfg; | |
bed98ff9 | 1637 | |
3f4fda20 | 1638 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1639 | "mod_waklog: phase9 called"); |
bed98ff9 | 1640 | |
3f4fda20 | 1641 | getModConfig (cfg, r->server); |
1642 | ||
1643 | if ( cfg->default_principal ) { | |
1644 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase9 using default user %s", cfg->default_principal); | |
1645 | set_auth( r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1646 | } | |
1647 | ||
1648 | return DECLINED; | |
bed98ff9 | 1649 | } |
1650 | ||
ff47641b | 1651 | |
87822447 | 1652 | static |
c9d59a9c | 1653 | #ifdef APACHE2 |
ff47641b | 1654 | int |
87822447 | 1655 | #else |
ff47641b | 1656 | void |
87822447 | 1657 | #endif |
ff47641b | 1658 | waklog_new_connection (conn_rec * c |
c9d59a9c | 1659 | #ifdef APACHE2 |
42d78dfb | 1660 | , void *dummy |
87822447 | 1661 | #endif |
ff47641b | 1662 | ) |
1663 | { | |
1664 | ||
3f4fda20 | 1665 | waklog_config *cfg; |
ff47641b | 1666 | |
1667 | log_error (APLOG_MARK, APLOG_DEBUG, 0, c->base_server, | |
42d78dfb | 1668 | "mod_waklog: new_connection called: pid: %d", getpid ()); |
1669 | ||
1670 | getModConfig(cfg, c->base_server); | |
1671 | ||
1672 | if ( cfg->default_principal ) { | |
1673 | log_error(APLOG_MARK, APLOG_DEBUG, 0, c->base_server, "mod_waklog: new conn setting default user %s", | |
1674 | cfg->default_principal); | |
1675 | set_auth( c->base_server, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1676 | } | |
1677 | ||
1678 | ||
3f4fda20 | 1679 | return |
c9d59a9c | 1680 | #ifdef APACHE2 |
3f4fda20 | 1681 | 0 |
87822447 | 1682 | #endif |
3f4fda20 | 1683 | ; |
7193eb01 | 1684 | } |
bed98ff9 | 1685 | |
c4ad0387 | 1686 | |
1196adfe | 1687 | /* |
1688 | ** Here's a quick explaination for phase0 and phase2: | |
1689 | ** Apache does a stat() on the path between phase0 and | |
1690 | ** phase2, and must by ACLed rl to succeed. So, at | |
1691 | ** phase0 we acquire credentials for umweb:servers from | |
1692 | ** a keytab, and at phase2 we must ensure we remove them. | |
1693 | ** | |
1694 | ** Failure to "unlog" would be a security risk. | |
1695 | */ | |
ff47641b | 1696 | static int |
1697 | waklog_phase2 (request_rec * r) | |
c4ad0387 | 1698 | { |
161ffd84 | 1699 | |
ff47641b | 1700 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1701 | "mod_waklog: phase2 called"); |
1196adfe | 1702 | |
ff47641b | 1703 | if (child.token.ticketLen) |
1704 | { | |
1705 | memset (&child.token, 0, sizeof (struct ktc_token)); | |
c4ad0387 | 1706 | |
ff47641b | 1707 | ktc_ForgetAllTokens (); |
c4ad0387 | 1708 | |
ff47641b | 1709 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1710 | "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", |
1711 | getpid ()); | |
c4ad0387 | 1712 | } |
1196adfe | 1713 | |
ff47641b | 1714 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1715 | "mod_waklog: phase2 returning"); |
1196adfe | 1716 | |
3f4fda20 | 1717 | return DECLINED; |
c4ad0387 | 1718 | } |
1719 | ||
c9d59a9c | 1720 | #ifndef APACHE2 |
313dde40 | 1721 | module MODULE_VAR_EXPORT waklog_module = { |
3f4fda20 | 1722 | STANDARD_MODULE_STUFF, |
866ccfbd | 1723 | waklog_init, /* module initializer */ |
42d78dfb | 1724 | waklog_create_dir_config, /* create per-dir config structures */ |
866ccfbd | 1725 | waklog_merge_dir_config, /* merge per-dir config structures */ |
1726 | waklog_create_server_config, /* create per-server config structures */ | |
1727 | waklog_merge_dir_config, /* merge per-server config structures */ | |
1728 | waklog_cmds, /* table of config file commands */ | |
1729 | NULL, /* [#8] MIME-typed-dispatched handlers */ | |
1730 | waklog_phase1, /* [#1] URI to filename translation */ | |
1731 | NULL, /* [#4] validate user id from request */ | |
1732 | NULL, /* [#5] check if the user is ok _here_ */ | |
1733 | waklog_phase3, /* [#3] check access by host address */ | |
1734 | waklog_phase6, /* [#6] determine MIME type */ | |
1735 | waklog_phase7, /* [#7] pre-run fixups */ | |
1736 | waklog_phase9, /* [#9] log a transaction */ | |
c760f0a1 | 1737 | waklog_phase2, /* [#2] header parser */ |
866ccfbd | 1738 | waklog_child_init, /* child_init */ |
1739 | waklog_child_exit, /* child_exit */ | |
1740 | waklog_phase0 /* [#0] post read-request */ | |
bed98ff9 | 1741 | #ifdef EAPI |
866ccfbd | 1742 | , NULL, /* EAPI: add_module */ |
1743 | NULL, /* EAPI: remove_module */ | |
1744 | NULL, /* EAPI: rewrite_command */ | |
1745 | waklog_new_connection /* EAPI: new_connection */ | |
bed98ff9 | 1746 | #endif |
1747 | }; | |
87822447 | 1748 | #else |
1749 | static void | |
ff47641b | 1750 | waklog_register_hooks (apr_pool_t * p) |
87822447 | 1751 | { |
3f4fda20 | 1752 | ap_hook_translate_name (waklog_phase1, NULL, NULL, APR_HOOK_FIRST); |
ff47641b | 1753 | ap_hook_header_parser (waklog_phase2, NULL, NULL, APR_HOOK_FIRST); |
3f4fda20 | 1754 | ap_hook_access_checker (waklog_phase3, NULL, NULL, APR_HOOK_FIRST); |
1755 | ap_hook_type_checker (waklog_phase6, NULL, NULL, APR_HOOK_FIRST); | |
ff47641b | 1756 | ap_hook_fixups (waklog_phase7, NULL, NULL, APR_HOOK_FIRST); |
3f4fda20 | 1757 | ap_hook_log_transaction (waklog_phase9, NULL, NULL, APR_HOOK_FIRST); |
ff47641b | 1758 | ap_hook_child_init (waklog_child_init, NULL, NULL, APR_HOOK_FIRST); |
1759 | ap_hook_post_read_request (waklog_phase0, NULL, NULL, APR_HOOK_FIRST); | |
1760 | ap_hook_pre_connection (waklog_new_connection, NULL, NULL, APR_HOOK_FIRST); | |
1761 | ap_hook_post_config (waklog_init_handler, NULL, NULL, APR_HOOK_MIDDLE); | |
87822447 | 1762 | } |
1763 | ||
1764 | ||
3f4fda20 | 1765 | module AP_MODULE_DECLARE_DATA waklog_module = { |
1766 | STANDARD20_MODULE_STUFF, | |
42d78dfb | 1767 | waklog_create_dir_config, /* create per-dir conf structures */ |
1768 | waklog_merge_dir_config, /* merge per-dir conf structures */ | |
1769 | waklog_create_server_config, /* create per-server conf structures */ | |
1770 | waklog_merge_dir_config, /* merge per-server conf structures */ | |
1771 | waklog_cmds, /* table of configuration directives */ | |
1772 | waklog_register_hooks /* register hooks */ | |
87822447 | 1773 | }; |
1774 | #endif |