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 | |
c3d579d6 | 48 | #include "http_connection.h" |
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> | |
8e9df4d2 | 74 | #include <kopenafs.h> |
3cb7bdb7 RJH |
75 | |
76 | #include <afs/param.h> | |
77 | ||
877d453f | 78 | #include <afs/venus.h> |
79 | #include <afs/auth.h> | |
80 | #include <afs/dirpath.h> | |
81 | #include <afs/ptuser.h> | |
82 | #include <rx/rxkad.h> | |
83 | ||
84 | #define TKT_LIFE ( 12 * 60 * 60 ) | |
42d78dfb | 85 | #define SLEEP_TIME ( TKT_LIFE - 5*60 ) |
877d453f | 86 | |
5d0827ae | 87 | #define WAKLOG_UNSET -1 |
877d453f | 88 | |
89 | #ifdef WAKLOG_DEBUG | |
90 | #undef APLOG_DEBUG | |
91 | #define APLOG_DEBUG APLOG_ERR | |
92 | #endif | |
93 | ||
877d453f | 94 | /* this is used to turn off pag generation for the backround worker child during startup */ |
95 | int pag_for_children = 1; | |
96 | ||
97 | typedef struct | |
98 | { | |
99 | int forked; | |
100 | int configured; | |
101 | int protect; | |
102 | int usertokens; | |
c8563f50 | 103 | int cell_in_principal; |
21a7788b | 104 | int disable_token_cache; |
877d453f | 105 | char *keytab; |
106 | char *principal; | |
107 | char *default_principal; | |
108 | char *default_keytab; | |
109 | char *afs_cell; | |
98534230 | 110 | char *afs_cell_realm; |
877d453f | 111 | char *path; |
112 | MK_POOL *p; | |
113 | } | |
114 | waklog_config; | |
115 | ||
116 | typedef struct | |
117 | { | |
118 | struct ktc_token token; | |
119 | char clientprincipal[MAXNAMELEN]; | |
120 | krb5_context kcontext; | |
121 | krb5_ccache ccache; | |
122 | struct ktc_principal server; | |
123 | struct ktc_principal client; | |
124 | int pr_init; | |
125 | } waklog_child_config; | |
126 | ||
127 | waklog_child_config child; | |
128 | ||
129 | struct tokencache_ent { | |
130 | char clientprincipal[MAXNAMELEN]; | |
131 | struct ktc_token token; | |
132 | struct ktc_principal client; | |
133 | struct ktc_principal server; | |
134 | time_t lastused; | |
135 | int persist; | |
136 | }; | |
137 | ||
138 | #define SHARED_TABLE_SIZE 512 | |
139 | ||
140 | struct sharedspace_s { | |
141 | int renewcount; | |
142 | struct tokencache_ent sharedtokens[SHARED_TABLE_SIZE]; | |
143 | }; | |
144 | ||
145 | struct sharedspace_s *sharedspace = NULL; | |
146 | ||
147 | struct renew_ent { | |
148 | char *keytab; | |
149 | char *principal; | |
150 | int lastrenewed; | |
151 | }; | |
152 | ||
153 | #ifdef use_pthreads | |
154 | pthread_rwlock_t *sharedlock = NULL; | |
155 | #else | |
156 | rwlock_t *sharedlock = NULL; | |
157 | #endif | |
158 | ||
159 | struct renew_ent renewtable[SHARED_TABLE_SIZE]; | |
160 | ||
161 | int renewcount = 0; | |
162 | ||
ebb1f61c | 163 | |
87822447 | 164 | |
c69d952f | 165 | #define getModConfig(P, X) P = (waklog_config *) ap_get_module_config( (X)->module_config, &waklog_module ); |
87822447 | 166 | |
58bbdc54 | 167 | |
87822447 | 168 | static void |
3f4fda20 | 169 | log_error (const char *file, int line, int level, int status, |
42d78dfb | 170 | const server_rec * s, const char *fmt, ...) |
4d47a8d9 | 171 | { |
3f4fda20 | 172 | char errstr[4096]; |
173 | va_list ap; | |
4d47a8d9 | 174 | |
3f4fda20 | 175 | va_start (ap, fmt); |
176 | vsnprintf (errstr, 1024, fmt, ap); | |
177 | va_end (ap); | |
4d47a8d9 | 178 | |
c9d59a9c | 179 | #ifdef APACHE2 |
3f4fda20 | 180 | ap_log_error (file, line, level | APLOG_NOERRNO, status, s, "(%d) %s", getpid(), errstr); |
87822447 | 181 | #else |
3f4fda20 | 182 | ap_log_error (file, line, level | APLOG_NOERRNO, s, "(%d) %s", getpid(), errstr); |
87822447 | 183 | #endif |
4d47a8d9 | 184 | |
87822447 | 185 | } |
4d47a8d9 | 186 | |
3f4fda20 | 187 | waklog_config *retrieve_config(request_rec *r) { |
188 | ||
189 | request_rec *my; | |
190 | waklog_config *cfg; | |
191 | ||
192 | if ( r && r->main ) { | |
193 | my = r->main; | |
194 | } else if (r) { | |
195 | my = r; | |
196 | } else { | |
197 | return NULL; | |
198 | } | |
199 | ||
200 | if ( my && ( cfg = (waklog_config *) ap_get_module_config(my->per_dir_config, &waklog_module ) ) ) { | |
201 | return cfg; | |
202 | } else { | |
203 | getModConfig (cfg, r->server); | |
204 | } | |
205 | ||
206 | return cfg; | |
207 | ||
208 | } | |
313dde40 | 209 | |
3f4fda20 | 210 | /* set_auth -- sets the tokens of the current process to this user. |
211 | if "self" is set, it divines the user from the current requests' environment. | |
212 | otherwise, it's gettng it from principal/keytab */ | |
213 | ||
214 | int | |
215 | set_auth ( server_rec *s, request_rec *r, int self, char *principal, char *keytab, int storeonly ) { | |
216 | ||
217 | int i; | |
218 | int usecached = 0; | |
219 | krb5_error_code kerror = 0; | |
220 | krb5_principal kprinc = NULL; | |
221 | krb5_get_init_creds_opt kopts; | |
222 | krb5_creds v5creds; | |
223 | krb5_creds increds; | |
c760f0a1 | 224 | krb5_ccache clientccache; |
3f4fda20 | 225 | struct ktc_principal server = { "afs", "", "" }; |
226 | struct ktc_principal client; | |
227 | struct ktc_token token; | |
228 | krb5_creds *v5credsp = NULL; | |
229 | krb5_keytab krb5kt = NULL; | |
230 | char buf[MAXNAMELEN]; | |
231 | waklog_config *cfg; | |
232 | int rc = 0; | |
233 | int buflen = 0; | |
234 | time_t oldest_time = 0; | |
c760f0a1 | 235 | int oldest = 0; |
3f4fda20 | 236 | int stored = -1; |
237 | time_t mytime; | |
238 | int indentical; | |
c8563f50 | 239 | int cell_in_principal; |
240 | int attempt; | |
7c53b5d0 | 241 | int use_client_credentials = 0; |
3f4fda20 | 242 | |
c760f0a1 | 243 | char k5user[MAXNAMELEN] = ""; |
244 | char *k5secret = NULL; | |
245 | ||
7c53b5d0 | 246 | char *k5path = NULL; |
3f4fda20 | 247 | |
248 | memset((char *) &increds, 0, sizeof(increds)); | |
3f4fda20 | 249 | /* init some stuff if it ain't already */ |
c760f0a1 | 250 | /* XXX - In what situation will these not be initialized? */ |
251 | ||
3f4fda20 | 252 | if ( ! child.kcontext ) { |
c760f0a1 | 253 | if ((kerror = krb5_init_context(&child.kcontext))) { |
254 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize Kerberos context err=%d", | |
255 | kerror); | |
256 | return(-1); | |
257 | } | |
7c53b5d0 | 258 | } |
c760f0a1 | 259 | |
260 | if ( !child.ccache) { | |
261 | if ((kerror = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache))) { | |
262 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize credentials cache %s err=%d", | |
263 | k5path, kerror ); | |
264 | return(-1); | |
265 | } | |
3f4fda20 | 266 | } |
267 | ||
d3bea354 | 268 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth: %d, %s, %s, %d, KRB5CC=%s user=%s", |
7c53b5d0 | 269 | self, principal ? principal : "NULL", |
d3bea354 | 270 | keytab ? keytab : "NULL", |
271 | storeonly, | |
272 | k5path ? k5path : "NULL", | |
273 | #ifdef APACHE2 | |
274 | (r && r->user) ? r->user : "NULL" | |
275 | #else | |
c760f0a1 | 276 | (r && r->connection && r->connection->user) ? r->connection->user : "NULL" |
d3bea354 | 277 | #endif |
278 | ); | |
3f4fda20 | 279 | |
280 | /* pull the server config record that we care about... */ | |
281 | ||
282 | if ( r ) { | |
283 | cfg = retrieve_config(r); | |
284 | } else { | |
285 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, | |
42d78dfb | 286 | "mod_waklog: set_auth using no config" ); |
3f4fda20 | 287 | getModConfig (cfg, s); |
288 | } | |
289 | ||
290 | if ( ! cfg ) { | |
291 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: cfg is %d", cfg ); | |
292 | } | |
c760f0a1 | 293 | |
294 | ||
3f4fda20 | 295 | if ( self ) { |
296 | /* pull out our principal name and stuff from the environment -- webauth better have sent | |
c760f0a1 | 297 | through. */ |
298 | ||
299 | #ifdef APACHE2 | |
3f4fda20 | 300 | if ( ! ( r && r->connection && r->user )) { |
301 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: self authentication selected, but no data available"); | |
5220a4ef | 302 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: r->user=%s", (r->user==NULL ? "null" : r->user)); |
3f4fda20 | 303 | return -1; |
304 | } | |
305 | ||
306 | strncpy(k5user, r->user, sizeof(k5user)); | |
c760f0a1 | 307 | #else |
308 | if ( ! (r && r->connection && r->connection->user)) { | |
309 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: self authentication selected, but no username available"); | |
3f4fda20 | 310 | return -1; |
c760f0a1 | 311 | } |
312 | ||
313 | strncpy(k5user, r->connection->user, sizeof(k5user)); | |
314 | #endif | |
315 | /* if they've supplied a credentials cache */ | |
316 | k5path = (char *) MK_TABLE_GET( r->subprocess_env, "KRB5CCNAME" ); | |
317 | ||
318 | /* the other thing we need is someone's password */ | |
319 | k5secret = (char *) MK_TABLE_GET( r->notes, "ATTR_PASSWORD" ); | |
3f4fda20 | 320 | |
321 | /* we'll pick this up later after we've checked the cache and current state */ | |
322 | ||
323 | } else | |
c760f0a1 | 324 | if ( principal ) { |
325 | strncpy(k5user, principal, sizeof(k5user)); | |
98534230 | 326 | } else |
c760f0a1 | 327 | #ifdef APACHE2 |
328 | if (r && r->user) { | |
329 | strncpy(k5user, r->user, sizeof(k5user)); | |
330 | } | |
331 | #else | |
332 | if (r && r->connection && r->connection->user) { | |
333 | strncpy(k5user, r->connection->user, sizeof(k5user)); | |
3f4fda20 | 334 | } |
c760f0a1 | 335 | #endif |
3f4fda20 | 336 | |
8f0b039f | 337 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth: k5user=%s", k5user); |
3f4fda20 | 338 | mytime = time(0); |
339 | ||
340 | /* see if we should just go ahead and ignore this call, since we already should be set to these | |
341 | credentials */ | |
313dde40 | 342 | |
3f4fda20 | 343 | if ( ! storeonly ) { |
313dde40 | 344 | |
3f4fda20 | 345 | #ifdef use_pthreads |
346 | pthread_rwlock_rdlock( sharedlock ); | |
347 | #else | |
348 | rw_rdlock( sharedlock ); | |
349 | #endif | |
313dde40 | 350 | |
3f4fda20 | 351 | for ( i = 0; i < SHARED_TABLE_SIZE; ++i ) { |
352 | ||
353 | /* if it's a token for the principal we're looking for, and it hasn't expired yet */ | |
354 | ||
355 | if ( ( !strcmp( k5user, | |
356 | sharedspace->sharedtokens[i].clientprincipal ) ) && | |
357 | ( sharedspace->sharedtokens[i].token.endTime > mytime ) ) { | |
358 | ||
359 | if ( ! memcmp(&child.token, &sharedspace->sharedtokens[i].token, sizeof(child.token) ) ) { | |
360 | indentical = 1; | |
361 | } else { | |
362 | indentical = 0; | |
363 | } | |
364 | ||
365 | /* copy the token out of the cache and into the child object */ | |
366 | ||
367 | strcpy(child.clientprincipal, sharedspace->sharedtokens[i].clientprincipal ); | |
368 | memcpy(&child.token, &sharedspace->sharedtokens[i].token, sizeof(child.token)); | |
369 | memcpy(&child.server, &sharedspace->sharedtokens[i].server, sizeof(child.server)); | |
370 | memcpy(&child.client, &sharedspace->sharedtokens[i].client, sizeof(child.client)); | |
371 | ||
372 | /* set our last used time thing */ | |
373 | sharedspace->sharedtokens[i].lastused = mytime; | |
374 | ||
375 | usecached = 1; | |
376 | ||
377 | break; | |
378 | ||
379 | } | |
380 | ||
381 | } | |
382 | ||
383 | /* release the lock on the token cache */ | |
384 | #ifdef use_pthreads | |
385 | pthread_rwlock_unlock( sharedlock ); | |
386 | #else | |
387 | rw_unlock( sharedlock ); | |
388 | #endif | |
313dde40 | 389 | |
3f4fda20 | 390 | if ( usecached ) { |
391 | /* release the lock on the token cache */ | |
392 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, | |
393 | "mod_waklog: set_auth using shared token %d for %s", i, k5user ); | |
394 | ||
395 | } | |
396 | ||
397 | /* if this is something that was in the cache, and it's the same as the token we already have stored, | |
398 | and we weren't calling this just to renew it... */ | |
399 | ||
400 | if ( usecached && indentical ) { | |
401 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: token is identical for %s", k5user ); | |
402 | return 0; | |
403 | } | |
404 | ||
405 | } | |
7c53b5d0 | 406 | |
3f4fda20 | 407 | /* if 'usecached' isn't set, we've got to get our tokens from somewhere... */ |
8f0b039f | 408 | if ( ! usecached ) { |
313dde40 | 409 | |
3f4fda20 | 410 | /* clear out the creds structure */ |
411 | memset((void *) &v5creds, 0, sizeof(v5creds)); | |
412 | ||
413 | /* create a principal out of our k5user string */ | |
414 | ||
c760f0a1 | 415 | if ( ( kerror = krb5_parse_name (child.kcontext, k5user, &kprinc ) ) ) { |
3f4fda20 | 416 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_parse_name %s", (char *) error_message(kerror) ); |
417 | goto cleanup; | |
418 | } | |
419 | ||
420 | /* create the credentials options */ | |
421 | ||
422 | krb5_get_init_creds_opt_init ( &kopts ); | |
423 | krb5_get_init_creds_opt_set_tkt_life ( &kopts, TKT_LIFE ); | |
424 | krb5_get_init_creds_opt_set_renew_life ( &kopts, 0 ); | |
425 | krb5_get_init_creds_opt_set_forwardable ( &kopts, 0 ); | |
426 | krb5_get_init_creds_opt_set_proxiable ( &kopts, 0 ); | |
427 | ||
c760f0a1 | 428 | if ( keytab || k5secret ) { |
3f4fda20 | 429 | |
c760f0a1 | 430 | if (keytab) { |
431 | /* if we've been passed a keytab, we're going to be getting our credentials from it */ | |
3f4fda20 | 432 | |
c760f0a1 | 433 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: using keytab %s", keytab); |
3f4fda20 | 434 | |
c760f0a1 | 435 | if ( ( kerror = krb5_kt_resolve(child.kcontext, keytab, &krb5kt ) ) ) { |
436 | log_error( APLOG_MARK, APLOG_ERR, 0, s, | |
437 | "mod_waklog: krb5_kt_resolve %s", error_message(kerror) ); | |
438 | goto cleanup; | |
439 | } | |
3f4fda20 | 440 | |
c760f0a1 | 441 | if ((kerror = krb5_get_init_creds_keytab (child.kcontext, &v5creds, |
442 | kprinc, krb5kt, 0, NULL, &kopts ) ) ) { | |
443 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_init_creds_keytab %s", | |
444 | error_message(kerror) ); | |
445 | goto cleanup; | |
446 | } | |
447 | } else if (k5secret) { | |
3f4fda20 | 448 | |
c760f0a1 | 449 | /* If the WebSSO is lame enough to provide a secret, then try and use that to get a token */ |
3f4fda20 | 450 | |
c760f0a1 | 451 | if ((kerror = krb5_get_init_creds_password ( child.kcontext, &v5creds, |
452 | kprinc, k5secret, NULL, NULL, 0, NULL, &kopts ) ) ) { | |
453 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_init_creds_password %s", | |
454 | error_message(kerror) ); | |
455 | /* nuke the password so it doesn't end up in core files */ | |
456 | memset(k5secret, 0, sizeof(k5secret)); | |
457 | goto cleanup; | |
458 | } | |
3f4fda20 | 459 | |
c760f0a1 | 460 | memset(k5secret, 0, sizeof(k5secret)); |
3f4fda20 | 461 | } |
c760f0a1 | 462 | |
3f4fda20 | 463 | /* initialize the credentials cache and store the stuff we just got */ |
c760f0a1 | 464 | if ( ( kerror = krb5_cc_initialize (child.kcontext, child.ccache, kprinc) ) ) { |
7c53b5d0 | 465 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: init credentials cache %s", |
466 | error_message(kerror)); | |
467 | goto cleanup; | |
468 | } | |
3f4fda20 | 469 | |
c760f0a1 | 470 | if ( ( kerror = krb5_cc_store_cred(child.kcontext, child.ccache, &v5creds) ) ) { |
7c53b5d0 | 471 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot store credentials %s", |
472 | error_message(kerror)); | |
473 | goto cleanup; | |
474 | } | |
3f4fda20 | 475 | |
c760f0a1 | 476 | krb5_free_cred_contents(child.kcontext, &v5creds); |
477 | ||
478 | if ( kerror ) { | |
479 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: store cred %s", error_message(kerror)); | |
480 | goto cleanup; | |
481 | } | |
482 | ||
483 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: kinit ok for %s", k5user ); | |
484 | ||
485 | } else if (k5path) { | |
486 | /* If we've got a path to a credentials cache, then try and use that. We can't just | |
487 | * replace child.creds, because we want to ensure that only this request gets access to | |
488 | * that cache */ | |
489 | ||
490 | if ( ( kerror = krb5_cc_resolve(child.kcontext, k5path, &clientccache ) ) ) { | |
491 | log_error(APLOG_MARK, APLOG_ERR, 0, s, | |
492 | "mod_waklog: can't open provided credentials cache %s err=%d", | |
493 | k5path, kerror ); | |
494 | goto cleanup; | |
495 | } | |
496 | ||
497 | use_client_credentials = 1; | |
498 | } | |
3f4fda20 | 499 | |
3f4fda20 | 500 | /* now, to the 'aklog' portion of our program. */ |
501 | ||
c8563f50 | 502 | /** we make two attempts here, one for afs@REALM and one for afs/cell@REALM */ |
503 | for(attempt = 0; attempt <= 1; attempt++) { | |
98534230 | 504 | strncpy( buf, "afs", sizeof(buf) - 1 ); |
c8563f50 | 505 | cell_in_principal = (cfg->cell_in_principal + attempt) % 2; |
506 | ||
507 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: cell_in_principal=%d", cell_in_principal ); | |
508 | if (cell_in_principal) { | |
98534230 | 509 | strncat(buf, "/", sizeof(buf) - strlen(buf) - 1); |
c8563f50 | 510 | strncat(buf, cfg->afs_cell, sizeof(buf) - strlen(buf) - 1); |
511 | } | |
5d0827ae | 512 | if (cfg->afs_cell_realm != NULL) { |
98534230 | 513 | strncat(buf, "@", sizeof(buf) - strlen(buf) - 1); |
514 | strncat(buf, cfg->afs_cell_realm, sizeof(buf) - strlen(buf) - 1); | |
515 | } | |
c8563f50 | 516 | |
517 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: using AFS principal: %s", buf); | |
518 | ||
519 | if ((kerror = krb5_parse_name (child.kcontext, buf, &increds.server))) { | |
520 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_parse name %s", error_message(kerror)); | |
521 | goto cleanup; | |
522 | } | |
7c53b5d0 | 523 | |
c760f0a1 | 524 | if (!use_client_credentials) { |
525 | clientccache = child.ccache; | |
526 | } | |
527 | ||
528 | if ((kerror = krb5_cc_get_principal(child.kcontext, clientccache, &increds.client))) { | |
529 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_cc_get_princ %s %p", error_message(kerror), clientccache); | |
c8563f50 | 530 | goto cleanup; |
531 | } | |
532 | ||
533 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: retrieved data from ccache for %s", k5user); | |
534 | ||
535 | increds.times.endtime = 0; | |
536 | ||
537 | increds.keyblock.enctype = ENCTYPE_DES_CBC_CRC; | |
538 | ||
c760f0a1 | 539 | if ( ( kerror = krb5_get_credentials (child.kcontext, 0, clientccache, &increds, &v5credsp ) ) ) { |
c8563f50 | 540 | /* only complain once we've tried both afs@REALM and afs/cell@REALM */ |
541 | if (attempt>=1) { | |
542 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_credentials: %s", | |
543 | error_message(kerror)); | |
544 | goto cleanup; | |
545 | } else { | |
546 | continue; | |
547 | } | |
548 | } | |
549 | cfg->cell_in_principal = cell_in_principal; | |
550 | break; | |
3f4fda20 | 551 | } |
c8563f50 | 552 | |
3f4fda20 | 553 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: get_credentials passed for %s", k5user); |
554 | ||
555 | if ( v5credsp->ticket.length >= MAXKTCTICKETLEN ) { | |
556 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: ticket size (%d) too big to fake", | |
557 | v5credsp->ticket.length); | |
558 | goto cleanup; | |
559 | } | |
313dde40 | 560 | |
3f4fda20 | 561 | memset(&token, 0, sizeof(struct ktc_token)); |
562 | ||
563 | token.startTime = v5credsp->times.starttime ? v5credsp->times.starttime : v5credsp->times.authtime; | |
564 | token.endTime = v5credsp->times.endtime; | |
565 | ||
566 | memmove( &token.sessionKey, v5credsp->keyblock.contents, v5credsp->keyblock.length); | |
567 | token.kvno = RXKAD_TKT_TYPE_KERBEROS_V5; | |
568 | token.ticketLen = v5credsp->ticket.length; | |
569 | memmove( token.ticket, v5credsp->ticket.data, token.ticketLen); | |
570 | ||
571 | /* build the name */ | |
572 | ||
573 | memmove( buf, v5credsp->client->data[0].data, min(v5credsp->client->data[0].length, | |
574 | MAXKTCNAMELEN -1 )); | |
575 | buf[v5credsp->client->data[0].length] = '\0'; | |
576 | if ( v5credsp->client->length > 1 ) { | |
577 | strncat(buf, ".", sizeof(buf) - strlen(buf) - 1); | |
578 | buflen = strlen(buf); | |
579 | memmove(buf + buflen, v5credsp->client->data[1].data, | |
580 | min(v5credsp->client->data[1].length, | |
581 | MAXKTCNAMELEN - strlen(buf) - 1)); | |
582 | buf[buflen + v5credsp->client->data[1].length] = '\0'; | |
583 | } | |
584 | ||
585 | /* assemble the client */ | |
586 | strncpy(client.name, buf, sizeof(client.name) - 1 ); | |
587 | strncpy(client.instance, "", sizeof(client.instance) - 1 ); | |
588 | memmove(buf, v5credsp->client->realm.data, min(v5credsp->client->realm.length, | |
589 | MAXKTCNAMELEN - 1)); | |
590 | buf[v5credsp->client->realm.length] = '\0'; | |
591 | strncpy(client.cell, buf, sizeof(client.cell)); | |
592 | ||
593 | /* assemble the server's cell */ | |
891fb458 | 594 | strncpy(server.cell, cfg->afs_cell, sizeof(server.cell) - 1); |
3f4fda20 | 595 | |
596 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: preparing to init PTS connection for %s", server.cell); | |
597 | ||
598 | /* fill out the AFS ID in the client name */ | |
599 | /* we've done a pr_Initialize in the child_init -- once, per process. If you try to do it more | |
600 | * strange things seem to happen. */ | |
601 | ||
602 | { | |
603 | afs_int32 viceId = 0; | |
604 | ||
605 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: making PTS call to look up %s", client.name); | |
606 | ||
607 | if ( ( rc = pr_SNameToId( client.name, &viceId ) ) == 0 ) { | |
608 | snprintf( client.name, sizeof(client.name), "AFS ID %d", viceId ); | |
609 | } else { | |
610 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: PTS call returned error %d ", rc); | |
611 | } | |
612 | ||
613 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: PTS call returned %s ", client.name); | |
614 | ||
615 | } | |
616 | ||
617 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: server: name %s, instance %s, cell %s", | |
618 | server.name, server.instance, server.cell ); | |
619 | ||
620 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: client: name %s, instance %s, cell %s", | |
621 | client.name, client.instance, client.cell ); | |
622 | ||
623 | /* copy the resulting stuff into the child structure */ | |
624 | ||
625 | strncpy(child.clientprincipal, k5user, sizeof(child.clientprincipal)); | |
626 | memcpy(&child.token, &token, sizeof(child.token)); | |
627 | memcpy(&child.server, &server, sizeof(child.server)); | |
628 | memcpy(&child.client, &client, sizeof(child.client)); | |
629 | ||
630 | /* stuff the resulting token-related stuff into our shared token cache */ | |
631 | /* note, that anything that was set from a keytab is "persistant", and is immune | |
632 | * from LRU-aging. This is because nothing but the process that's running as root | |
633 | * can update these, and it's running every hour or so and renewing these tokens. | |
634 | * and we don't want them aged out. | |
635 | */ | |
636 | ||
637 | mytime = oldest_time = time(0); | |
638 | ||
639 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: waiting for shared space for %s ", k5user); | |
4e1ae1cd | 640 | |
3f4fda20 | 641 | #ifdef use_pthreads |
642 | pthread_rwlock_wrlock(sharedlock); | |
643 | #else | |
644 | rw_wrlock(sharedlock); | |
645 | #endif | |
4e1ae1cd | 646 | |
3f4fda20 | 647 | for( i = ( SHARED_TABLE_SIZE - 1 ); i >= 0; i-- ) { |
648 | if ( ( sharedspace->sharedtokens[i].lastused <= oldest_time) && | |
649 | ( sharedspace->sharedtokens[i].persist == 0 ) ) { | |
650 | oldest = i; | |
651 | oldest_time = sharedspace->sharedtokens[i].lastused; | |
652 | } | |
653 | if ( ! strcmp ( sharedspace->sharedtokens[i].clientprincipal, | |
654 | child.clientprincipal ) ) { | |
655 | memcpy(&sharedspace->sharedtokens[i].token, &child.token, sizeof(child.token) ); | |
656 | memcpy(&sharedspace->sharedtokens[i].client, &child.client, sizeof(child.client) ); | |
657 | memcpy(&sharedspace->sharedtokens[i].server, &child.server, sizeof(child.server) ); | |
658 | sharedspace->sharedtokens[i].lastused = mytime; | |
659 | sharedspace->sharedtokens[i].persist = keytab ? 1 : 0; | |
660 | stored = i; | |
661 | break; | |
662 | } | |
663 | } | |
664 | ||
665 | if ( stored == -1 ) { | |
666 | memcpy(&sharedspace->sharedtokens[oldest].token, &child.token, sizeof(child.token) ); | |
667 | memcpy(&sharedspace->sharedtokens[oldest].client, &child.client, sizeof(child.client) ); | |
668 | memcpy(&sharedspace->sharedtokens[oldest].server, &child.server, sizeof(child.server) ); | |
669 | strcpy(sharedspace->sharedtokens[oldest].clientprincipal, child.clientprincipal ); | |
670 | sharedspace->sharedtokens[oldest].lastused = mytime; | |
671 | sharedspace->sharedtokens[oldest].persist = keytab ? 1 : 0; | |
672 | stored = oldest; | |
673 | } | |
3ed1e28a | 674 | |
3f4fda20 | 675 | #ifdef use_pthreads |
676 | pthread_rwlock_unlock(sharedlock); | |
677 | #else | |
678 | rw_unlock(sharedlock); | |
679 | #endif | |
680 | ||
681 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: token stored in slot %d for %s", stored, | |
682 | child.clientprincipal ); | |
683 | ||
684 | } else if ( ! usecached ) { | |
685 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth divergent case"); | |
686 | } | |
687 | ||
688 | if ( storeonly ) { | |
689 | goto cleanup; | |
690 | } | |
691 | ||
692 | usecachedtoken: | |
693 | ||
694 | /* don't ask. Something about AIX. We're leaving it here.*/ | |
695 | /* write(2, "", 0); */ | |
696 | ||
697 | /* we try twice, because sometimes the first one fails. Dunno why, but it always works the second time */ | |
698 | ||
699 | if ((rc = ktc_SetToken(&child.server, &child.token, &child.client, 0))) { | |
700 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: settoken returned %s for %s -- trying again", | |
701 | error_message(rc), k5user); | |
702 | if ((rc = ktc_SetToken(&child.server, &child.token, &child.client, 0))) { | |
703 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: settoken2 returned %s for %s", | |
704 | error_message(rc), k5user); | |
705 | goto cleanup; | |
706 | } | |
707 | } | |
708 | ||
709 | cleanup: | |
c760f0a1 | 710 | if (use_client_credentials) |
711 | krb5_cc_close(child.kcontext, clientccache); | |
3f4fda20 | 712 | if ( v5credsp ) |
713 | krb5_free_cred_contents(child.kcontext, v5credsp); | |
714 | if ( increds.client ) | |
715 | krb5_free_principal (child.kcontext, increds.client); | |
716 | if ( increds.server ) | |
717 | krb5_free_principal (child.kcontext, increds.server); | |
718 | if ( krb5kt ) | |
719 | (void) krb5_kt_close(child.kcontext, krb5kt); | |
720 | if ( kprinc ) | |
721 | krb5_free_principal (child.kcontext, kprinc); | |
722 | ||
723 | if ( rc ) { | |
724 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth ending with %d", rc ); | |
725 | } else if ( kerror ) { | |
726 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth ending with krb5 error %d, %s", kerror, error_message(kerror)); | |
727 | } else { | |
728 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth ending ok"); | |
729 | } | |
730 | ||
731 | return kerror ? (int) kerror : (int) rc; | |
732 | ||
4e1ae1cd | 733 | } |
734 | ||
735 | ||
4480093f | 736 | int get_cfg_usertokens(waklog_config *cfg) |
737 | { | |
738 | if (cfg->usertokens==WAKLOG_UNSET) | |
739 | return 0; /* default */ | |
740 | return cfg->usertokens; | |
741 | } | |
742 | ||
743 | int get_cfg_protect(waklog_config *cfg) | |
744 | { | |
745 | if (cfg->protect==WAKLOG_UNSET) | |
746 | return 0; /* default */ | |
747 | return cfg->protect; | |
748 | } | |
749 | ||
750 | int get_cfg_disable_token_cache(waklog_config *cfg) | |
751 | { | |
752 | if (cfg->disable_token_cache==WAKLOG_UNSET) | |
753 | return 0; /* default */ | |
754 | return cfg->disable_token_cache; | |
755 | } | |
756 | ||
7193eb01 | 757 | |
3f4fda20 | 758 | static void * |
759 | waklog_create_server_config (MK_POOL * p, server_rec * s) | |
760 | { | |
761 | waklog_config *cfg; | |
762 | ||
763 | cfg = (waklog_config *) ap_pcalloc (p, sizeof (waklog_config)); | |
764 | cfg->p = p; | |
765 | memset(cfg, 0, sizeof(waklog_config)); | |
766 | cfg->path = "(server)"; | |
767 | cfg->protect = WAKLOG_UNSET; | |
768 | cfg->usertokens = WAKLOG_UNSET; | |
21a7788b | 769 | cfg->disable_token_cache = WAKLOG_UNSET; |
5d0827ae | 770 | cfg->keytab = NULL; |
771 | cfg->principal = NULL; | |
772 | cfg->default_principal = NULL; | |
773 | cfg->default_keytab = NULL; | |
774 | cfg->afs_cell = NULL; | |
775 | cfg->afs_cell_realm = NULL; | |
3f4fda20 | 776 | cfg->forked = 0; |
777 | cfg->configured = 0; | |
778 | ||
779 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, | |
42d78dfb | 780 | "mod_waklog: server config created."); |
3f4fda20 | 781 | |
782 | return (cfg); | |
783 | } | |
7193eb01 | 784 | |
3f4fda20 | 785 | /* initialize with host-config information */ |
58bbdc54 | 786 | |
3f4fda20 | 787 | static void * |
788 | waklog_create_dir_config (MK_POOL * p, char *dir) | |
789 | { | |
790 | waklog_config *cfg; | |
791 | ||
792 | cfg = (waklog_config *) ap_pcalloc (p, sizeof (waklog_config)); | |
793 | memset(cfg, 0, sizeof(waklog_config)); | |
794 | cfg->p = p; | |
795 | cfg->path = ap_pstrdup(p, dir ); | |
796 | cfg->protect = WAKLOG_UNSET; | |
797 | cfg->usertokens = WAKLOG_UNSET; | |
21a7788b | 798 | cfg->disable_token_cache = WAKLOG_UNSET; |
5d0827ae | 799 | cfg->keytab = NULL; |
800 | cfg->principal = NULL; | |
801 | cfg->default_principal = NULL; | |
802 | cfg->default_keytab = NULL; | |
803 | cfg->afs_cell = NULL; | |
804 | cfg->afs_cell_realm = NULL; | |
3f4fda20 | 805 | cfg->forked = 0; |
806 | cfg->configured = 0; | |
807 | ||
808 | return (cfg); | |
58bbdc54 | 809 | } |
810 | ||
3f4fda20 | 811 | static void *waklog_merge_dir_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 *parent = ( waklog_config * ) parent_conf; | |
815 | waklog_config *child = ( waklog_config * ) newloc_conf; | |
816 | ||
817 | merged->protect = child->protect != WAKLOG_UNSET ? child->protect : parent->protect; | |
818 | ||
5d0827ae | 819 | merged->path = child->path != NULL ? child->path : parent->path; |
3f4fda20 | 820 | |
821 | merged->usertokens = child->usertokens != WAKLOG_UNSET ? child->usertokens : parent->usertokens; | |
21a7788b | 822 | |
823 | merged->disable_token_cache = child->disable_token_cache != WAKLOG_UNSET ? child->disable_token_cache : parent->disable_token_cache; | |
3f4fda20 | 824 | |
5d0827ae | 825 | merged->principal = child->principal != NULL ? child->principal : parent->principal; |
3f4fda20 | 826 | |
5d0827ae | 827 | merged->keytab = child->keytab != NULL ? child->keytab : parent->keytab; |
3f4fda20 | 828 | |
5d0827ae | 829 | merged->default_keytab = child->default_keytab != NULL ? child->default_keytab : parent->default_keytab; |
3f4fda20 | 830 | |
5d0827ae | 831 | merged->default_principal = child->default_principal != NULL ? child->default_principal : parent->default_principal; |
3f4fda20 | 832 | |
5d0827ae | 833 | merged->afs_cell = child->afs_cell != NULL ? child->afs_cell : parent->afs_cell; |
98534230 | 834 | |
5d0827ae | 835 | merged->afs_cell_realm = child->afs_cell_realm != NULL ? child->afs_cell_realm : parent->afs_cell_realm; |
3f4fda20 | 836 | |
837 | return (void *) merged; | |
838 | ||
839 | } | |
58bbdc54 | 840 | |
3f4fda20 | 841 | static void *waklog_merge_server_config(MK_POOL *p, void *parent_conf, void *newloc_conf) { |
58bbdc54 | 842 | |
3f4fda20 | 843 | waklog_config *merged = ( waklog_config * ) ap_pcalloc(p, sizeof(waklog_config ) ); |
844 | waklog_config *pconf = ( waklog_config * ) parent_conf; | |
845 | waklog_config *nconf = ( waklog_config * ) newloc_conf; | |
846 | ||
847 | merged->protect = nconf->protect == WAKLOG_UNSET ? pconf->protect : nconf->protect; | |
58bbdc54 | 848 | |
3f4fda20 | 849 | merged->usertokens = nconf->usertokens == WAKLOG_UNSET ? pconf->usertokens : nconf->usertokens; |
58bbdc54 | 850 | |
bce7d4d9 | 851 | merged->disable_token_cache = nconf->disable_token_cache == WAKLOG_UNSET ? pconf->disable_token_cache : nconf->disable_token_cache; |
21a7788b | 852 | |
5d0827ae | 853 | merged->keytab = nconf->keytab == NULL ? ap_pstrdup(p, pconf->keytab) : |
854 | ( nconf->keytab == NULL ? NULL : ap_pstrdup(p, nconf->keytab) ); | |
3f4fda20 | 855 | |
5d0827ae | 856 | merged->principal = nconf->principal == NULL ? ap_pstrdup(p, pconf->principal) : |
857 | ( nconf->principal == NULL ? NULL : ap_pstrdup(p, nconf->principal) ); | |
3f4fda20 | 858 | |
5d0827ae | 859 | merged->afs_cell = nconf->afs_cell == NULL ? ap_pstrdup(p, pconf->afs_cell) : |
860 | ( nconf->afs_cell == NULL ? NULL : ap_pstrdup(p, nconf->afs_cell) ); | |
3f4fda20 | 861 | |
5d0827ae | 862 | merged->afs_cell_realm = nconf->afs_cell_realm == NULL ? ap_pstrdup(p, pconf->afs_cell_realm) : |
863 | ( nconf->afs_cell_realm == NULL ? NULL : ap_pstrdup(p, nconf->afs_cell_realm) ); | |
98534230 | 864 | |
5d0827ae | 865 | merged->default_keytab = nconf->default_keytab == NULL ? ap_pstrdup(p, pconf->default_keytab) : |
866 | ( nconf->default_keytab == NULL ? NULL : ap_pstrdup(p, nconf->default_keytab) ); | |
58bbdc54 | 867 | |
5d0827ae | 868 | merged->default_principal = nconf->default_principal == NULL ? ap_pstrdup(p, pconf->default_principal) : |
869 | ( nconf->default_principal == NULL ? NULL : ap_pstrdup(p, nconf->default_principal) ); | |
3f4fda20 | 870 | |
871 | ||
872 | return (void *) merged; | |
873 | ||
874 | } | |
875 | ||
876 | static const char * | |
21a7788b | 877 | set_waklog_enabled (cmd_parms * params, void *mconfig, int flag) |
58bbdc54 | 878 | { |
3f4fda20 | 879 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
880 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
881 | ||
882 | cfg->protect = flag; | |
883 | cfg->configured = 1; | |
884 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, | |
21a7788b | 885 | "mod_waklog: waklog_enabled set on %s", cfg->path ? cfg->path : "NULL"); |
3f4fda20 | 886 | return (NULL); |
887 | } | |
58bbdc54 | 888 | |
7193eb01 | 889 | |
3f4fda20 | 890 | /* this adds a principal/keytab pair to get their tokens renewed by the |
891 | child process every few centons. */ | |
7193eb01 | 892 | |
3f4fda20 | 893 | void add_to_renewtable(MK_POOL *p, char *keytab, char *principal) { |
87822447 | 894 | |
3f4fda20 | 895 | int i; |
896 | ||
897 | if ( renewcount >= SHARED_TABLE_SIZE ) { | |
898 | log_error(APLOG_MARK, APLOG_DEBUG, 0, NULL, "mod_waklog: big problem. Increase the SHARED_TABLE_SIZE or \ | |
899 | decrease your tokens."); | |
b74fad73 | 900 | return; |
3f4fda20 | 901 | } |
902 | ||
903 | /* check to see if it's already there */ | |
904 | ||
905 | for ( i = 0; i < renewcount; i++ ) { | |
906 | if ( ! strcmp(renewtable[i].principal, principal ) ) { | |
907 | return; | |
908 | } | |
909 | } | |
910 | ||
911 | renewtable[renewcount].keytab = ap_pstrdup(p, keytab); | |
912 | renewtable[renewcount].principal = ap_pstrdup(p, principal); | |
913 | renewtable[renewcount].lastrenewed = 0; | |
914 | ++renewcount; | |
915 | ||
b74fad73 | 916 | } |
917 | ||
3f4fda20 | 918 | static const char * |
21a7788b | 919 | set_waklog_location_principal (cmd_parms *params, void *mconfig, char *principal, char *keytab) |
3f4fda20 | 920 | { |
921 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : | |
922 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
923 | ||
924 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, | |
42d78dfb | 925 | "mod_waklog: configuring principal: %s, keytab: %s", principal, keytab); |
926 | ||
927 | cfg->principal = ap_pstrdup(params->pool, principal); | |
3f4fda20 | 928 | cfg->keytab = ap_pstrdup (params->pool, keytab); |
929 | ||
930 | add_to_renewtable(params->pool, keytab, principal); | |
931 | ||
932 | cfg->configured = 1; | |
933 | ||
934 | return (NULL); | |
935 | } | |
b74fad73 | 936 | |
3f4fda20 | 937 | static const char * |
21a7788b | 938 | set_waklog_afs_cell (cmd_parms * params, void *mconfig, char *file) |
313dde40 | 939 | { |
891fb458 | 940 | waklog_config *waklog_mconfig = ( waklog_config * ) mconfig; |
941 | waklog_config *waklog_srvconfig = | |
3f4fda20 | 942 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
943 | ||
891fb458 | 944 | log_error (APLOG_MARK, APLOG_INFO, 0, params->server, |
42d78dfb | 945 | "mod_waklog: will use afs_cell: %s", file); |
313dde40 | 946 | |
678051d7 | 947 | // Prefer afs/cell@REALM over afs@REALM, just like the OpenAFS tools |
948 | waklog_srvconfig->cell_in_principal = 1; | |
949 | ||
891fb458 | 950 | waklog_srvconfig->afs_cell = ap_pstrdup (params->pool, file); |
951 | waklog_srvconfig->configured = 1; | |
952 | ||
953 | if (waklog_mconfig != NULL) { | |
c8563f50 | 954 | waklog_mconfig->cell_in_principal = waklog_srvconfig->cell_in_principal; |
891fb458 | 955 | waklog_mconfig->afs_cell = ap_pstrdup (params->pool, file); |
956 | waklog_mconfig->configured = 1; | |
957 | } | |
3f4fda20 | 958 | return (NULL); |
959 | } | |
58bbdc54 | 960 | |
98534230 | 961 | static const char * |
962 | set_waklog_afs_cell_realm (cmd_parms * params, void *mconfig, char *file) | |
963 | { | |
964 | waklog_config *waklog_mconfig = ( waklog_config * ) mconfig; | |
965 | waklog_config *waklog_srvconfig = | |
966 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
967 | ||
968 | log_error (APLOG_MARK, APLOG_INFO, 0, params->server, | |
969 | "mod_waklog: will use afs_cell_realm: %s", file); | |
970 | ||
971 | waklog_srvconfig->afs_cell_realm = ap_pstrdup (params->pool, file); | |
972 | ||
973 | if (waklog_mconfig != NULL) { | |
974 | waklog_mconfig->afs_cell_realm = ap_pstrdup (params->pool, file); | |
975 | } | |
976 | return (NULL); | |
977 | } | |
978 | ||
3f4fda20 | 979 | static const char * |
980 | set_waklog_default_principal (cmd_parms * params, void *mconfig, char *principal, char *keytab) | |
981 | { | |
982 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : | |
983 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
58bbdc54 | 984 | |
3f4fda20 | 985 | waklog_config *srvcfg = ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
4e1ae1cd | 986 | |
3f4fda20 | 987 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb | 988 | "mod_waklog: set default princ/keytab: %s, %s for %s", principal, keytab, cfg->path ? cfg->path : "NULL"); |
313dde40 | 989 | |
3f4fda20 | 990 | cfg->default_principal = ap_pstrdup (params->pool, principal); |
991 | cfg->default_keytab = ap_pstrdup(params->pool, keytab ); | |
992 | ||
993 | /* this also gets set at the server level */ | |
994 | if ( mconfig && ( ! cfg->path ) ) { | |
995 | srvcfg->default_principal = ap_pstrdup (params->pool, principal); | |
996 | srvcfg->default_keytab = ap_pstrdup(params->pool, keytab ); | |
997 | } else { | |
998 | log_error(APLOG_MARK, APLOG_ERR, 0, params->server, "only able to set default principal on a global level!"); | |
999 | return "Unable to set DefaultPrincipal outside of top level config!"; | |
1000 | } | |
1001 | ||
1002 | add_to_renewtable( params->pool, keytab, principal ); | |
1003 | ||
1004 | cfg->configured = 1; | |
1005 | ||
1006 | return (NULL); | |
1007 | } | |
313dde40 | 1008 | |
3f4fda20 | 1009 | static const char * |
1010 | set_waklog_use_usertokens (cmd_parms * params, void *mconfig, int flag) | |
bed98ff9 | 1011 | { |
3f4fda20 | 1012 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
1013 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
bed98ff9 | 1014 | |
3f4fda20 | 1015 | cfg->usertokens = flag; |
bed98ff9 | 1016 | |
3f4fda20 | 1017 | cfg->configured = 1; |
bed98ff9 | 1018 | |
3f4fda20 | 1019 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb | 1020 | "mod_waklog: waklog_use_user_tokens set"); |
3f4fda20 | 1021 | return (NULL); |
bed98ff9 | 1022 | } |
1023 | ||
1024 | ||
21a7788b | 1025 | static const char * |
1026 | set_waklog_disable_token_cache (cmd_parms * params, void *mconfig, int flag) | |
1027 | { | |
1028 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : | |
1029 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); | |
1030 | ||
1031 | cfg->disable_token_cache = flag; | |
1032 | ||
1033 | cfg->configured = 1; | |
1034 | ||
1035 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, | |
1036 | "mod_waklog: waklog_disable_token_cache set"); | |
1037 | return (NULL); | |
1038 | } | |
1039 | ||
1040 | ||
c9d59a9c | 1041 | #ifndef APACHE2 |
3f4fda20 | 1042 | static void waklog_child_exit( server_rec *s, MK_POOL *p ) { |
1043 | #else | |
1044 | apr_status_t waklog_child_exit( void *sr ) { | |
4e1ae1cd | 1045 | |
3f4fda20 | 1046 | server_rec *s = (server_rec *) sr; |
1047 | #endif | |
1048 | ||
1049 | if ( child.ccache ) { | |
1050 | krb5_cc_close(child.kcontext, child.ccache); | |
1051 | } | |
1052 | ||
1053 | if ( child.kcontext ) { | |
1054 | krb5_free_context(child.kcontext); | |
1055 | } | |
1056 | ||
1057 | /* forget our tokens */ | |
1058 | ||
1059 | ktc_ForgetAllTokens (); | |
1060 | ||
1061 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, | |
42d78dfb | 1062 | "mod_waklog: waklog_child_exit complete"); |
4e1ae1cd | 1063 | |
c9d59a9c | 1064 | #ifdef APACHE2 |
3f4fda20 | 1065 | return APR_SUCCESS; |
1066 | #endif | |
1067 | ||
1068 | } | |
4e1ae1cd | 1069 | |
3f4fda20 | 1070 | static void |
c9d59a9c | 1071 | #ifdef APACHE2 |
3f4fda20 | 1072 | waklog_child_init (MK_POOL * p, server_rec * s) |
1073 | #else | |
1074 | waklog_child_init (server_rec * s, MK_POOL * p) | |
1075 | #endif | |
1076 | { | |
b52ccbb1 | 1077 | |
3f4fda20 | 1078 | krb5_error_code code; |
1079 | waklog_config *cfg; | |
1080 | ||
1081 | char *cell; | |
1082 | ||
3f4fda20 | 1083 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init called for pid %d", getpid()); |
1084 | ||
1085 | if ( !sharedspace ) { | |
1086 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: child_init called without shared space? %d", getpid()); | |
1087 | return; | |
1088 | } | |
1089 | ||
1090 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init called for pid %d", getpid()); | |
7193eb01 | 1091 | |
3f4fda20 | 1092 | memset (&child, 0, sizeof(child)); |
1093 | ||
c760f0a1 | 1094 | if ( ( code = krb5_init_context(&child.kcontext) ) ) { |
3f4fda20 | 1095 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't init kerberos context %d", code ); |
1096 | } | |
1097 | ||
c760f0a1 | 1098 | if ( ( code = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) ) { |
3f4fda20 | 1099 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", code ); |
1100 | } | |
1101 | ||
1102 | if ( pag_for_children ) { | |
8e9df4d2 | 1103 | k_setpag (); |
3f4fda20 | 1104 | } |
7193eb01 | 1105 | |
3f4fda20 | 1106 | getModConfig (cfg, s); |
7193eb01 | 1107 | |
5d0827ae | 1108 | if ( cfg->default_principal != NULL ) { |
3f4fda20 | 1109 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init setting default user %s, %s", cfg->default_principal, cfg->default_keytab); |
1110 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1111 | } | |
7193eb01 | 1112 | |
891fb458 | 1113 | cell = strdup(cfg->afs_cell); |
3f4fda20 | 1114 | pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR, cell ); |
7193eb01 | 1115 | |
c9d59a9c | 1116 | #ifdef APACHE2 |
3f4fda20 | 1117 | apr_pool_cleanup_register(p, s, waklog_child_exit, apr_pool_cleanup_null); |
1118 | #endif | |
7193eb01 | 1119 | |
3f4fda20 | 1120 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb | 1121 | "mod_waklog: child_init returned"); |
7193eb01 | 1122 | |
3f4fda20 | 1123 | return; |
1124 | } | |
b52ccbb1 | 1125 | |
3f4fda20 | 1126 | command_rec waklog_cmds[] = { |
1127 | ||
21a7788b | 1128 | command ("WaklogAFSCell", set_waklog_afs_cell, 0, TAKE1, |
1129 | "Use the supplied AFS cell (required)"), | |
7193eb01 | 1130 | |
98534230 | 1131 | command ("WaklogAFSCellRealm", set_waklog_afs_cell_realm, 0, TAKE1, |
1132 | "Assume that the AFS cell belongs to the specified Kerberos realm (optional)"), | |
1133 | ||
21a7788b | 1134 | command ("WaklogEnabled", set_waklog_enabled, 0, FLAG, |
1135 | "enable waklog on a server, location, or directory basis"), | |
7193eb01 | 1136 | |
21a7788b | 1137 | command ("WaklogDefaultPrincipal", set_waklog_default_principal, 0, TAKE2, |
1138 | "Set the default principal that the server runs as"), | |
7193eb01 | 1139 | |
21a7788b | 1140 | command ("WaklogLocationPrincipal", set_waklog_location_principal, 0, TAKE2, |
1141 | "Set the principal on a <Location>-specific basis"), | |
7193eb01 | 1142 | |
21a7788b | 1143 | command ("WaklogDisableTokenCache", set_waklog_disable_token_cache, 0, FLAG, |
1144 | "Ignore the token cache (location-specific); useful for scripts that need kerberos tickets."), | |
1145 | ||
1146 | command ("WaklogUseUserTokens", set_waklog_use_usertokens, 0, FLAG, | |
1147 | "Use the requesting user tokens (from webauth)"), | |
1148 | ||
3f4fda20 | 1149 | {NULL} |
1150 | }; | |
7193eb01 | 1151 | |
7193eb01 | 1152 | |
3f4fda20 | 1153 | /* not currently using this */ |
7193eb01 | 1154 | |
3f4fda20 | 1155 | static int |
1156 | token_cleanup (void *data) | |
1157 | { | |
1158 | request_rec *r = (request_rec *) data; | |
e2df6441 | 1159 | |
3f4fda20 | 1160 | if (child.token.ticketLen) |
1161 | { | |
1162 | memset (&child.token, 0, sizeof (struct ktc_token)); | |
e21f34f0 | 1163 | |
3f4fda20 | 1164 | ktc_ForgetAllTokens (); |
7193eb01 | 1165 | |
3f4fda20 | 1166 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1167 | "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", |
1168 | getpid ()); | |
3f4fda20 | 1169 | } |
1170 | return 0; | |
7193eb01 | 1171 | } |
1172 | ||
22782cea JW |
1173 | /* This function doesn't return anything but is passed to ap_bspawn_child on |
1174 | * Apache 1 which expects it to return a pid as an int. For want of better | |
1175 | * understanding, err on the side of not changing Apache 1 code while fixing | |
1176 | * the compile warning on Apache 2. */ | |
1177 | #ifdef APACHE2 | |
1178 | static void | |
1179 | #else | |
3f4fda20 | 1180 | static int |
22782cea | 1181 | #endif |
3f4fda20 | 1182 | waklog_child_routine (void *data, child_info * pinfo) |
7193eb01 | 1183 | { |
3f4fda20 | 1184 | int i; |
1185 | server_rec *s = (server_rec *) data; | |
1186 | krb5_error_code code; | |
1187 | char *cell; | |
1188 | time_t sleep_time = ( TKT_LIFE / 2 ) ; | |
1189 | time_t when; | |
1190 | time_t left; | |
1191 | waklog_config *cfg; | |
1192 | ||
1193 | getModConfig( cfg, s ); | |
1194 | ||
1195 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: waklog_child_routine started, running as %d", getuid()); | |
1196 | ||
1197 | memset (&child, 0, sizeof(child)); | |
1198 | ||
c760f0a1 | 1199 | if ( ( code = krb5_init_context(&child.kcontext) ) ) { |
3f4fda20 | 1200 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't init kerberos context %d", code ); |
1201 | } | |
1202 | ||
c760f0a1 | 1203 | if ( ( code = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) ) { |
3f4fda20 | 1204 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", code ); |
1205 | } | |
1206 | ||
c760f0a1 | 1207 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: about to pr_Initialize"); |
1208 | ||
3f4fda20 | 1209 | /* need to do this so we can make PTS calls */ |
891fb458 | 1210 | cell = strdup(cfg->afs_cell); /* stupid */ |
3f4fda20 | 1211 | pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR, cell ); |
c760f0a1 | 1212 | |
1213 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: still here"); | |
1214 | ||
3f4fda20 | 1215 | while(1) { |
1216 | ||
1217 | for ( i = 0; i < renewcount; ++i ) { | |
1218 | renewtable[i].lastrenewed = time(0); | |
1219 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: (pid %d) renewing %s / %s", getpid(), renewtable[i].principal, | |
1220 | renewtable[i].keytab); | |
1221 | ||
1222 | set_auth( s, NULL, 0, renewtable[i].principal, renewtable[i].keytab, 1 ); | |
1223 | ||
1224 | /* if this is our default token, we want to "stash" it in our current PAG so the parent maintains readability of | |
1225 | things that it needs to read */ | |
1226 | ||
1227 | if ( cfg && cfg->default_principal && ( ! strcmp(cfg->default_principal, renewtable[i].principal ) ) ) { | |
1228 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: renewing/setting default tokens" ); | |
1229 | set_auth( s, NULL, 0, renewtable[i].principal, renewtable[i].keytab, 0 ); | |
1230 | } | |
1231 | ||
4e1ae1cd | 1232 | } |
1233 | ||
3f4fda20 | 1234 | sharedspace->renewcount++; |
1235 | ||
1236 | left = sleep_time; | |
1237 | ||
1238 | while( left > 5 ) { | |
1239 | when = time(0); | |
1240 | ||
1241 | sleep(left); | |
1242 | ||
1243 | left -= ( time(0) - when ); | |
4e1ae1cd | 1244 | } |
3f4fda20 | 1245 | |
1246 | } | |
4e1ae1cd | 1247 | |
3f4fda20 | 1248 | pr_End(); |
403921ef | 1249 | |
3f4fda20 | 1250 | } |
4e1ae1cd | 1251 | |
c9d59a9c | 1252 | #ifdef APACHE2 |
3f4fda20 | 1253 | static int |
1254 | waklog_init_handler (apr_pool_t * p, apr_pool_t * plog, | |
42d78dfb | 1255 | apr_pool_t * ptemp, server_rec * s) |
3f4fda20 | 1256 | { |
1257 | int rv; | |
1258 | extern char *version; | |
1259 | apr_proc_t *proc; | |
1260 | waklog_config *cfg; | |
1261 | void *data; | |
1262 | int fd = -1; | |
1263 | int use_existing = 1; | |
1264 | int oldrenewcount; | |
1265 | char cache_file[MAXNAMELEN]; | |
1266 | #ifdef use_pthreads | |
1267 | pthread_rwlockattr_t rwlock_attr; | |
1268 | #endif | |
4e1ae1cd | 1269 | |
1270 | ||
3f4fda20 | 1271 | getModConfig (cfg, s); |
4e1ae1cd | 1272 | |
3f4fda20 | 1273 | /* initialize_module() will be called twice, and if it's a DSO |
1274 | * then all static data from the first call will be lost. Only | |
1275 | * set up our static data on the second call. | |
1276 | * see http://issues.apache.org/bugzilla/show_bug.cgi?id=37519 */ | |
1277 | apr_pool_userdata_get (&data, userdata_key, s->process->pool); | |
7193eb01 | 1278 | |
891fb458 | 1279 | |
1280 | if (cfg->afs_cell==NULL) { | |
1281 | log_error (APLOG_MARK, APLOG_ERR, 0, s, | |
21a7788b | 1282 | "mod_waklog: afs_cell==NULL; please provide the WaklogAFSCell directive"); |
891fb458 | 1283 | /** clobber apache */ |
1284 | exit(-1); | |
1285 | } | |
1286 | ||
3f4fda20 | 1287 | if (!data) |
1288 | { | |
1289 | apr_pool_userdata_set ((const void *) 1, userdata_key, | |
42d78dfb | 1290 | apr_pool_cleanup_null, s->process->pool); |
4e1ae1cd | 1291 | } |
3f4fda20 | 1292 | else |
1293 | { | |
1294 | log_error (APLOG_MARK, APLOG_INFO, 0, s, | |
891fb458 | 1295 | "mod_waklog: version %s initialized for cell %s", version, cfg->afs_cell); |
3f4fda20 | 1296 | |
1297 | if ( sharedspace ) { | |
1298 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: shared memory already allocated." ); | |
1299 | } else { | |
1300 | ||
1301 | snprintf( cache_file, MAXNAMELEN, "/tmp/waklog_cache.%d", getpid() ); | |
1302 | ||
1303 | if ( ( fd = open( cache_file, O_RDWR, 0600 ) ) == -1 ) { | |
1304 | ||
1305 | if ( errno == ENOENT ) { | |
1306 | ||
1307 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: creating shared token cache file %s", cache_file ); | |
1308 | use_existing = 0; | |
1309 | if ( ( fd = open( cache_file, O_RDWR|O_CREAT|O_TRUNC, 0600 ) ) == -1 ) { | |
1310 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file, errno ); | |
1311 | exit(errno); | |
1312 | } | |
1313 | } else { | |
1314 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file, errno ); | |
1315 | } | |
1316 | } | |
1317 | ||
1318 | if ( use_existing == 0 ) { | |
1319 | struct sharedspace_s bob; | |
1320 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: sizing our cache file %d to %d", fd, sizeof(struct sharedspace_s) ); | |
1321 | memset( &bob, 0, sizeof(struct sharedspace_s)); | |
1322 | write(fd, &bob, sizeof(struct sharedspace_s)); | |
1323 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s) ); | |
1324 | } | |
1325 | ||
1326 | /* mmap the region */ | |
1327 | ||
1328 | if ( ( sharedspace = (struct sharedspace_s *) mmap ( NULL, sizeof(struct sharedspace_s), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0 ) ) != MAP_FAILED ) { | |
4cd4a5af | 1329 | int err = 0; |
3f4fda20 | 1330 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared mmap region ok %d", sharedspace ); |
4cd4a5af | 1331 | err = unlink(cache_file); |
1332 | if (err) { | |
1333 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: unable to delete %s due to %d", cache_file, errno); | |
1334 | } else { | |
95ad25b8 | 1335 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared cache unlinked (will be deleted when Apache quits)"); |
4cd4a5af | 1336 | } |
3f4fda20 | 1337 | } else { |
1338 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: mmap failed %d", errno ); | |
1339 | exit(errno); | |
1340 | } | |
1341 | } | |
4e1ae1cd | 1342 | |
3f4fda20 | 1343 | #ifdef use_pthreads |
1344 | #define locktype pthread_rwlock_t | |
1345 | #else | |
1346 | #define locktype rwlock_t | |
1347 | #endif | |
4e1ae1cd | 1348 | |
4521ace1 | 1349 | if ( ( sharedlock = ( locktype * ) mmap ( NULL, sizeof(locktype), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0 ) ) != NULL ) { |
3f4fda20 | 1350 | #ifndef use_pthreads |
1351 | rwlock_init(sharedlock, USYNC_PROCESS, NULL ); | |
1352 | #else | |
1353 | pthread_rwlockattr_init(&rwlock_attr); | |
1354 | pthread_rwlockattr_setpshared(&rwlock_attr, PTHREAD_PROCESS_SHARED); | |
1355 | pthread_rwlock_init(sharedlock, &rwlock_attr ); | |
1356 | #endif | |
1357 | } else { | |
1358 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: rwlock mmap failed %d", errno ); | |
1359 | } | |
58bbdc54 | 1360 | |
3f4fda20 | 1361 | #undef locktype |
7193eb01 | 1362 | |
3f4fda20 | 1363 | /* set our default tokens */ |
403921ef | 1364 | |
3f4fda20 | 1365 | oldrenewcount = sharedspace->renewcount; |
7193eb01 | 1366 | |
3f4fda20 | 1367 | pag_for_children = 0; |
7193eb01 | 1368 | |
3f4fda20 | 1369 | proc = (apr_proc_t *) ap_pcalloc (s->process->pool, sizeof (apr_proc_t)); |
7193eb01 | 1370 | |
3f4fda20 | 1371 | rv = apr_proc_fork (proc, s->process->pool); |
7193eb01 | 1372 | |
3f4fda20 | 1373 | if (rv == APR_INCHILD) |
42d78dfb | 1374 | { |
1375 | waklog_child_routine (s, NULL); | |
1376 | } | |
3f4fda20 | 1377 | else |
42d78dfb | 1378 | { |
1379 | apr_pool_note_subprocess (s->process->pool, proc, APR_KILL_ALWAYS); | |
1380 | } | |
3f4fda20 | 1381 | /* parent and child */ |
1382 | cfg->forked = proc->pid; | |
1383 | pag_for_children = 1; | |
1384 | ||
1385 | if ( use_existing == 0 ) { | |
1386 | /* wait here until our child process has gone and done it's renewing thing. */ | |
1387 | while( sharedspace->renewcount == oldrenewcount ) { | |
1388 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: waiting for tokens..." ); | |
1389 | sleep(2); | |
1390 | } | |
1391 | } | |
1392 | ||
1393 | if ( cfg->default_principal ) { | |
1394 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1395 | } | |
1396 | } | |
1397 | return 0; | |
1398 | } | |
ebb1f61c | 1399 | #else |
3f4fda20 | 1400 | static void |
1401 | waklog_init (server_rec * s, MK_POOL * p) | |
1402 | { | |
1403 | extern char *version; | |
1404 | int pid; | |
1405 | waklog_config *cfg; | |
3f4fda20 | 1406 | int fd = -1; |
1407 | int use_existing = 1; | |
1408 | int oldrenewcount; | |
1409 | char cache_file[MAXNAMELEN]; | |
1410 | #ifdef use_pthreads | |
1411 | pthread_rwlockattr_t rwlock_attr; | |
ebb1f61c | 1412 | #endif |
7193eb01 | 1413 | |
3f4fda20 | 1414 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb | 1415 | "mod_waklog: version %s initialized.", version); |
7193eb01 | 1416 | |
3f4fda20 | 1417 | if ( sharedspace ) { |
1418 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: shared memory already allocated." ); | |
1419 | } else { | |
1420 | ||
1421 | snprintf( cache_file, MAXNAMELEN, "/tmp/waklog_cache.%d", getpid() ); | |
1422 | ||
1423 | if ( ( fd = open( cache_file, O_RDWR, 0600 ) ) == -1 ) { | |
1424 | ||
1425 | if ( errno == ENOENT ) { | |
1426 | ||
1427 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: creating shared token cache file %s", cache_file ); | |
1428 | use_existing = 0; | |
1429 | if ( ( fd = open( cache_file, O_RDWR|O_CREAT|O_TRUNC, 0600 ) ) == -1 ) { | |
1430 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file, errno ); | |
1431 | exit(errno); | |
1432 | } | |
1433 | } else { | |
1434 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file, errno ); | |
1435 | } | |
1436 | ||
1437 | } | |
1438 | ||
1439 | if ( use_existing == 0 ) { | |
1440 | struct sharedspace_s bob; | |
1441 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: sizing our cache file %d to %d", fd, sizeof(struct sharedspace_s) ); | |
1442 | memset( &bob, 0, sizeof(struct sharedspace_s)); | |
1443 | write(fd, &bob, sizeof(struct sharedspace_s)); | |
1444 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s) ); | |
1445 | } | |
4e1ae1cd | 1446 | |
3f4fda20 | 1447 | /* mmap the region */ |
1448 | ||
c760f0a1 | 1449 | if ( ( sharedspace = (struct sharedspace_s *) mmap ( NULL, sizeof(struct sharedspace_s), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0 ) ) != (void *) -1 ) { |
3f4fda20 | 1450 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared mmap region ok %d", sharedspace ); |
1451 | close(fd); | |
1452 | } else { | |
1453 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: mmap failed %d", errno ); | |
1454 | exit(errno); | |
1455 | } | |
1456 | } | |
e21f34f0 | 1457 | |
3f4fda20 | 1458 | #ifdef use_pthreads |
1459 | #define locktype pthread_rwlock_t | |
1460 | #else | |
1461 | #define locktype rwlock_t | |
ea3e8708 | 1462 | #endif |
e21f34f0 | 1463 | |
3f4fda20 | 1464 | /* mmap our shared space for our lock */ |
c760f0a1 | 1465 | if ( ( sharedlock = ( locktype * ) mmap ( NULL, sizeof(locktype), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0 ) ) ) { |
3f4fda20 | 1466 | #ifndef use_pthreads |
1467 | rwlock_init(sharedlock, USYNC_PROCESS, NULL ); | |
1468 | #else | |
1469 | pthread_rwlockattr_init(&rwlock_attr); | |
1470 | pthread_rwlockattr_setpshared(&rwlock_attr, PTHREAD_PROCESS_SHARED); | |
1471 | pthread_rwlock_init(sharedlock, &rwlock_attr ); | |
1472 | #endif | |
1473 | } else { | |
1474 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: rwlock mmap failed %d", errno ); | |
1475 | } | |
e21f34f0 | 1476 | |
3f4fda20 | 1477 | #undef locktype |
e21f34f0 | 1478 | |
3f4fda20 | 1479 | /* set our default tokens */ |
1480 | ||
1481 | getModConfig (cfg, s); | |
42d78dfb | 1482 | |
1483 | oldrenewcount = sharedspace->renewcount; | |
1484 | ||
1485 | pag_for_children = 0; | |
1486 | ||
1487 | pid = ap_bspawn_child (p, waklog_child_routine, s, kill_always, | |
1488 | NULL, NULL, NULL); | |
1489 | ||
1490 | pag_for_children = 1; | |
1491 | ||
3f4fda20 | 1492 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb | 1493 | "mod_waklog: ap_bspawn_child: %d.", pid); |
3f4fda20 | 1494 | |
1495 | if ( use_existing == 0 ) { | |
1496 | /* wait here until our child process has gone and done it's renewing thing. */ | |
1497 | while( sharedspace->renewcount == oldrenewcount ) { | |
1498 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: waiting for tokens..." ); | |
1499 | sleep(2); | |
87822447 | 1500 | } |
3f4fda20 | 1501 | } |
1502 | ||
1503 | if ( cfg->default_principal ) { | |
1504 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1505 | } | |
1506 | ||
87822447 | 1507 | } |
3f4fda20 | 1508 | #endif |
1509 | ||
1510 | static int | |
1511 | waklog_phase0 (request_rec * r) | |
e21f34f0 | 1512 | { |
3f4fda20 | 1513 | waklog_config *cfg; |
e21f34f0 | 1514 | |
3f4fda20 | 1515 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1516 | "mod_waklog: phase0 called"); |
3f4fda20 | 1517 | |
1518 | cfg = retrieve_config(r); | |
e21f34f0 | 1519 | |
4480093f | 1520 | if ( get_cfg_protect(cfg) && cfg->principal ) { |
3f4fda20 | 1521 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 using user %s", cfg->principal); |
1522 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); | |
1523 | } else if ( cfg->default_principal ) { | |
1524 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 using default user %s", cfg->default_principal); | |
1525 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1526 | } else { | |
c760f0a1 | 1527 | |
1528 | if (child.token.ticketLen) { | |
1529 | memset( &child.token, 0, sizeof (struct ktc_token) ); | |
1530 | ktc_ForgetAllTokens(); | |
1531 | } | |
1532 | ||
3f4fda20 | 1533 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 not doing nothin."); |
1534 | } | |
e21f34f0 | 1535 | |
3f4fda20 | 1536 | return DECLINED; |
e21f34f0 | 1537 | } |
4e1ae1cd | 1538 | |
3f4fda20 | 1539 | static int |
1540 | waklog_phase1 (request_rec * r) | |
bed98ff9 | 1541 | { |
3f4fda20 | 1542 | waklog_config *cfg; |
313dde40 | 1543 | |
3f4fda20 | 1544 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1545 | "mod_waklog: phase1 called"); |
7193eb01 | 1546 | |
3f4fda20 | 1547 | cfg = retrieve_config(r); |
313dde40 | 1548 | |
4480093f | 1549 | if ( get_cfg_protect(cfg) && cfg->principal ) { |
3f4fda20 | 1550 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 using user %s", cfg->principal); |
1551 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); | |
1552 | } else if ( cfg->default_principal ) { | |
1553 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 using default user %s", cfg->default_principal); | |
1554 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1555 | } else { | |
1556 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 not doing nothin."); | |
1557 | } | |
4e1ae1cd | 1558 | |
3f4fda20 | 1559 | return DECLINED; |
7193eb01 | 1560 | } |
4e1ae1cd | 1561 | |
3f4fda20 | 1562 | static int |
1563 | waklog_phase3 (request_rec * r) | |
7193eb01 | 1564 | { |
3f4fda20 | 1565 | waklog_config *cfg; |
1e18ef7d | 1566 | |
3f4fda20 | 1567 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1568 | "mod_waklog: phase 3 called"); |
1e18ef7d | 1569 | |
3f4fda20 | 1570 | cfg = retrieve_config(r); |
1571 | ||
4480093f | 1572 | if ( get_cfg_protect(cfg) && cfg->principal ) { |
3f4fda20 | 1573 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 using user %s", cfg->principal); |
1574 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); | |
1575 | } else if ( cfg->default_principal ) { | |
1576 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 using default user %s", cfg->default_principal); | |
1577 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1578 | } else { | |
1579 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 not doing nothin."); | |
1580 | } | |
1581 | ||
1582 | return DECLINED; | |
1583 | } | |
bed98ff9 | 1584 | |
3f4fda20 | 1585 | static int |
1586 | waklog_phase6 (request_rec * r) | |
1587 | { | |
1588 | waklog_config *cfg; | |
1589 | ||
1590 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, | |
42d78dfb | 1591 | "mod_waklog: phase6 called"); |
3f4fda20 | 1592 | |
1593 | cfg = retrieve_config(r); | |
1594 | ||
4480093f | 1595 | if ( get_cfg_protect(cfg) && cfg->principal ) { |
3f4fda20 | 1596 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 using user %s", cfg->principal); |
1597 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); | |
1598 | } else if ( cfg->default_principal ) { | |
1599 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 using default user %s", cfg->default_principal); | |
1600 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1601 | } else { | |
1602 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 not doing nothin."); | |
1603 | } | |
1604 | ||
1605 | return DECLINED; | |
1606 | } | |
bed98ff9 | 1607 | |
3f4fda20 | 1608 | static int |
1609 | waklog_phase7 (request_rec * r) | |
1610 | { | |
1611 | waklog_config *cfg; | |
1612 | int rc = 0; | |
1613 | ||
1614 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, | |
42d78dfb | 1615 | "mod_waklog: phase7 called"); |
3f4fda20 | 1616 | |
1617 | cfg = retrieve_config (r); | |
1618 | ||
4480093f | 1619 | if ( get_cfg_protect(cfg) && get_cfg_usertokens(cfg) ) { |
3f4fda20 | 1620 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using usertokens"); |
1621 | rc = set_auth( r->server, r, 1, NULL, NULL, 0); | |
4480093f | 1622 | } else if ( get_cfg_protect(cfg) && cfg->principal ) { |
3f4fda20 | 1623 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using user %s", cfg->principal); |
1624 | rc = set_auth( r->server, r, 0, cfg->principal, cfg->keytab, 0); | |
1625 | } else if ( cfg->default_principal ) { | |
1626 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using default user %s", cfg->default_principal); | |
1627 | rc = set_auth( r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
d3bea354 | 1628 | } else { |
c760f0a1 | 1629 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: no tokens"); |
1630 | if (child.token.ticketLen) { | |
1631 | memset(&child.token, 0, sizeof(struct ktc_token)); | |
1632 | ktc_ForgetAllTokens(); | |
1633 | } | |
3f4fda20 | 1634 | } |
1635 | ||
1636 | if ( rc ) { | |
1637 | return 400; | |
1638 | } | |
1639 | ||
1640 | return DECLINED; | |
1641 | } | |
87822447 | 1642 | |
3f4fda20 | 1643 | static int |
1644 | waklog_phase9 (request_rec * r) | |
1645 | { | |
1646 | waklog_config *cfg; | |
bed98ff9 | 1647 | |
3f4fda20 | 1648 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1649 | "mod_waklog: phase9 called"); |
bed98ff9 | 1650 | |
3f4fda20 | 1651 | getModConfig (cfg, r->server); |
1652 | ||
1653 | if ( cfg->default_principal ) { | |
1654 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase9 using default user %s", cfg->default_principal); | |
1655 | set_auth( r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1656 | } | |
1657 | ||
1658 | return DECLINED; | |
bed98ff9 | 1659 | } |
1660 | ||
ff47641b | 1661 | |
87822447 | 1662 | static |
c9d59a9c | 1663 | #ifdef APACHE2 |
ff47641b | 1664 | int |
87822447 | 1665 | #else |
ff47641b | 1666 | void |
87822447 | 1667 | #endif |
ff47641b | 1668 | waklog_new_connection (conn_rec * c |
c9d59a9c | 1669 | #ifdef APACHE2 |
42d78dfb | 1670 | , void *dummy |
87822447 | 1671 | #endif |
ff47641b | 1672 | ) |
1673 | { | |
1674 | ||
3f4fda20 | 1675 | waklog_config *cfg; |
ff47641b | 1676 | |
1677 | log_error (APLOG_MARK, APLOG_DEBUG, 0, c->base_server, | |
42d78dfb | 1678 | "mod_waklog: new_connection called: pid: %d", getpid ()); |
1679 | ||
1680 | getModConfig(cfg, c->base_server); | |
1681 | ||
1682 | if ( cfg->default_principal ) { | |
1683 | log_error(APLOG_MARK, APLOG_DEBUG, 0, c->base_server, "mod_waklog: new conn setting default user %s", | |
1684 | cfg->default_principal); | |
1685 | set_auth( c->base_server, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); | |
1686 | } | |
1687 | ||
1688 | ||
3f4fda20 | 1689 | return |
c9d59a9c | 1690 | #ifdef APACHE2 |
3f4fda20 | 1691 | 0 |
87822447 | 1692 | #endif |
3f4fda20 | 1693 | ; |
7193eb01 | 1694 | } |
bed98ff9 | 1695 | |
c4ad0387 | 1696 | |
1196adfe | 1697 | /* |
1698 | ** Here's a quick explaination for phase0 and phase2: | |
1699 | ** Apache does a stat() on the path between phase0 and | |
1700 | ** phase2, and must by ACLed rl to succeed. So, at | |
1701 | ** phase0 we acquire credentials for umweb:servers from | |
1702 | ** a keytab, and at phase2 we must ensure we remove them. | |
1703 | ** | |
1704 | ** Failure to "unlog" would be a security risk. | |
1705 | */ | |
ff47641b | 1706 | static int |
1707 | waklog_phase2 (request_rec * r) | |
c4ad0387 | 1708 | { |
161ffd84 | 1709 | |
ff47641b | 1710 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1711 | "mod_waklog: phase2 called"); |
1196adfe | 1712 | |
ff47641b | 1713 | if (child.token.ticketLen) |
1714 | { | |
1715 | memset (&child.token, 0, sizeof (struct ktc_token)); | |
c4ad0387 | 1716 | |
ff47641b | 1717 | ktc_ForgetAllTokens (); |
c4ad0387 | 1718 | |
ff47641b | 1719 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1720 | "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", |
1721 | getpid ()); | |
c4ad0387 | 1722 | } |
1196adfe | 1723 | |
ff47641b | 1724 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb | 1725 | "mod_waklog: phase2 returning"); |
1196adfe | 1726 | |
3f4fda20 | 1727 | return DECLINED; |
c4ad0387 | 1728 | } |
1729 | ||
c9d59a9c | 1730 | #ifndef APACHE2 |
313dde40 | 1731 | module MODULE_VAR_EXPORT waklog_module = { |
3f4fda20 | 1732 | STANDARD_MODULE_STUFF, |
866ccfbd | 1733 | waklog_init, /* module initializer */ |
42d78dfb | 1734 | waklog_create_dir_config, /* create per-dir config structures */ |
866ccfbd | 1735 | waklog_merge_dir_config, /* merge per-dir config structures */ |
1736 | waklog_create_server_config, /* create per-server config structures */ | |
1737 | waklog_merge_dir_config, /* merge per-server config structures */ | |
1738 | waklog_cmds, /* table of config file commands */ | |
1739 | NULL, /* [#8] MIME-typed-dispatched handlers */ | |
1740 | waklog_phase1, /* [#1] URI to filename translation */ | |
1741 | NULL, /* [#4] validate user id from request */ | |
1742 | NULL, /* [#5] check if the user is ok _here_ */ | |
1743 | waklog_phase3, /* [#3] check access by host address */ | |
1744 | waklog_phase6, /* [#6] determine MIME type */ | |
1745 | waklog_phase7, /* [#7] pre-run fixups */ | |
1746 | waklog_phase9, /* [#9] log a transaction */ | |
c760f0a1 | 1747 | waklog_phase2, /* [#2] header parser */ |
866ccfbd | 1748 | waklog_child_init, /* child_init */ |
1749 | waklog_child_exit, /* child_exit */ | |
1750 | waklog_phase0 /* [#0] post read-request */ | |
bed98ff9 | 1751 | #ifdef EAPI |
866ccfbd | 1752 | , NULL, /* EAPI: add_module */ |
1753 | NULL, /* EAPI: remove_module */ | |
1754 | NULL, /* EAPI: rewrite_command */ | |
1755 | waklog_new_connection /* EAPI: new_connection */ | |
bed98ff9 | 1756 | #endif |
1757 | }; | |
87822447 | 1758 | #else |
1759 | static void | |
ff47641b | 1760 | waklog_register_hooks (apr_pool_t * p) |
87822447 | 1761 | { |
3f4fda20 | 1762 | ap_hook_translate_name (waklog_phase1, NULL, NULL, APR_HOOK_FIRST); |
ff47641b | 1763 | ap_hook_header_parser (waklog_phase2, NULL, NULL, APR_HOOK_FIRST); |
3f4fda20 | 1764 | ap_hook_access_checker (waklog_phase3, NULL, NULL, APR_HOOK_FIRST); |
1765 | ap_hook_type_checker (waklog_phase6, NULL, NULL, APR_HOOK_FIRST); | |
ff47641b | 1766 | ap_hook_fixups (waklog_phase7, NULL, NULL, APR_HOOK_FIRST); |
3f4fda20 | 1767 | ap_hook_log_transaction (waklog_phase9, NULL, NULL, APR_HOOK_FIRST); |
ff47641b | 1768 | ap_hook_child_init (waklog_child_init, NULL, NULL, APR_HOOK_FIRST); |
1769 | ap_hook_post_read_request (waklog_phase0, NULL, NULL, APR_HOOK_FIRST); | |
1770 | ap_hook_pre_connection (waklog_new_connection, NULL, NULL, APR_HOOK_FIRST); | |
1771 | ap_hook_post_config (waklog_init_handler, NULL, NULL, APR_HOOK_MIDDLE); | |
87822447 | 1772 | } |
1773 | ||
1774 | ||
3f4fda20 | 1775 | module AP_MODULE_DECLARE_DATA waklog_module = { |
1776 | STANDARD20_MODULE_STUFF, | |
42d78dfb | 1777 | waklog_create_dir_config, /* create per-dir conf structures */ |
1778 | waklog_merge_dir_config, /* merge per-dir conf structures */ | |
1779 | waklog_create_server_config, /* create per-server conf structures */ | |
1780 | waklog_merge_dir_config, /* merge per-server conf structures */ | |
1781 | waklog_cmds, /* table of configuration directives */ | |
1782 | waklog_register_hooks /* register hooks */ | |
87822447 | 1783 | }; |
1784 | #endif |