87822447 |
1 | #define _LARGEFILE64_SOURCE |
ff47641b |
2 | #define _GNU_SOURCE |
87822447 |
3 | |
bed98ff9 |
4 | #include "httpd.h" |
5 | #include "http_config.h" |
bed98ff9 |
6 | #include "http_log.h" |
7193eb01 |
7 | #include "http_protocol.h" |
8 | #include "http_request.h" |
9 | #include "http_core.h" |
87822447 |
10 | |
ff47641b |
11 | #ifdef sun |
12 | #include <synch.h> |
13 | #elif linux |
14 | #define use_pthreads |
15 | #include <features.h> |
16 | #include <sys/types.h> |
17 | #include <sys/mman.h> |
18 | #include <pthread.h> |
19 | #else |
20 | #error "make sure you include the right stuff here" |
21 | #endif |
22 | |
23 | #ifndef MAXNAMELEN |
24 | #define MAXNAMELEN 1024 |
25 | #endif |
26 | |
891fb458 |
27 | #ifdef STANDARD20_MODULE_STUFF |
c9d59a9c |
28 | #define APACHE2 |
29 | #endif |
30 | |
31 | /********************* APACHE1 ******************************************************************************/ |
32 | #ifndef APACHE2 |
ebb1f61c |
33 | #include "ap_config.h" |
34 | #if defined(sun) |
35 | #include <sys/ioccom.h> |
36 | #endif /* sun */ |
37 | #include <http_conf_globals.h> |
38 | #define MK_POOL pool |
39 | #define MK_TABLE_GET ap_table_get |
40 | #define MK_TABLE_SET ap_table_set |
41 | #define command(name, func, var, type, usage) \ |
42 | { name, func, \ |
43 | NULL , \ |
44 | RSRC_CONF | ACCESS_CONF , type, usage } |
21a7788b |
45 | module waklog_module; |
ebb1f61c |
46 | |
47 | /********************* APACHE2 ******************************************************************************/ |
48 | #else |
87822447 |
49 | #include <apr_strings.h> |
50 | #include <apr_base64.h> |
ebb1f61c |
51 | #define ap_pcalloc apr_pcalloc |
52 | #define ap_pdupstr apr_pdupstr |
53 | #define ap_pstrdup apr_pstrdup |
87822447 |
54 | #define MK_POOL apr_pool_t |
55 | #define MK_TABLE_GET apr_table_get |
d06251b1 |
56 | #define MK_TABLE_SET apr_table_set |
87822447 |
57 | #include "unixd.h" |
58 | extern unixd_config_rec unixd_config; |
59 | #define ap_user_id unixd_config.user_id |
60 | #define ap_group_id unixd_config.group_id |
61 | #define ap_user_name unixd_config.user_name |
62 | #define command(name, func, var, type, usage) \ |
63 | AP_INIT_ ## type (name, (void*) func, \ |
ebb1f61c |
64 | NULL, \ |
65 | RSRC_CONF | ACCESS_CONF, usage) |
21a7788b |
66 | module AP_MODULE_DECLARE_DATA waklog_module; |
67 | typedef struct { int dummy; } child_info; |
87822447 |
68 | const char *userdata_key = "waklog_init"; |
21a7788b |
69 | |
c9d59a9c |
70 | #endif /* APACHE2 */ |
ebb1f61c |
71 | /**************************************************************************************************/ |
877d453f |
72 | |
73 | #include <krb5.h> |
877d453f |
74 | #include <stropts.h> |
75 | #include <afs/venus.h> |
76 | #include <afs/auth.h> |
77 | #include <afs/dirpath.h> |
78 | #include <afs/ptuser.h> |
79 | #include <rx/rxkad.h> |
80 | |
81 | #define TKT_LIFE ( 12 * 60 * 60 ) |
42d78dfb |
82 | #define SLEEP_TIME ( TKT_LIFE - 5*60 ) |
877d453f |
83 | |
84 | #define WAKLOG_ON 1 |
85 | #define WAKLOG_OFF 2 |
86 | #define WAKLOG_UNSET 0 |
87 | |
88 | #ifdef WAKLOG_DEBUG |
89 | #undef APLOG_DEBUG |
90 | #define APLOG_DEBUG APLOG_ERR |
91 | #endif |
92 | |
877d453f |
93 | /* this is used to turn off pag generation for the backround worker child during startup */ |
94 | int pag_for_children = 1; |
95 | |
96 | typedef struct |
97 | { |
98 | int forked; |
99 | int configured; |
100 | int protect; |
101 | int usertokens; |
c8563f50 |
102 | int cell_in_principal; |
21a7788b |
103 | int disable_token_cache; |
877d453f |
104 | char *keytab; |
105 | char *principal; |
106 | char *default_principal; |
107 | char *default_keytab; |
108 | char *afs_cell; |
98534230 |
109 | char *afs_cell_realm; |
877d453f |
110 | char *path; |
111 | MK_POOL *p; |
112 | } |
113 | waklog_config; |
114 | |
115 | typedef struct |
116 | { |
117 | struct ktc_token token; |
118 | char clientprincipal[MAXNAMELEN]; |
119 | krb5_context kcontext; |
120 | krb5_ccache ccache; |
121 | struct ktc_principal server; |
122 | struct ktc_principal client; |
123 | int pr_init; |
124 | } waklog_child_config; |
125 | |
126 | waklog_child_config child; |
127 | |
128 | struct tokencache_ent { |
129 | char clientprincipal[MAXNAMELEN]; |
130 | struct ktc_token token; |
131 | struct ktc_principal client; |
132 | struct ktc_principal server; |
133 | time_t lastused; |
134 | int persist; |
135 | }; |
136 | |
137 | #define SHARED_TABLE_SIZE 512 |
138 | |
139 | struct sharedspace_s { |
140 | int renewcount; |
141 | struct tokencache_ent sharedtokens[SHARED_TABLE_SIZE]; |
142 | }; |
143 | |
144 | struct sharedspace_s *sharedspace = NULL; |
145 | |
146 | struct renew_ent { |
147 | char *keytab; |
148 | char *principal; |
149 | int lastrenewed; |
150 | }; |
151 | |
152 | #ifdef use_pthreads |
153 | pthread_rwlock_t *sharedlock = NULL; |
154 | #else |
155 | rwlock_t *sharedlock = NULL; |
156 | #endif |
157 | |
158 | struct renew_ent renewtable[SHARED_TABLE_SIZE]; |
159 | |
160 | int renewcount = 0; |
161 | |
ebb1f61c |
162 | |
87822447 |
163 | |
c69d952f |
164 | #define getModConfig(P, X) P = (waklog_config *) ap_get_module_config( (X)->module_config, &waklog_module ); |
87822447 |
165 | |
4e1ae1cd |
166 | #include <krb5.h> |
bed98ff9 |
167 | |
7193eb01 |
168 | #if defined(sun) |
bed98ff9 |
169 | #include <sys/ioccom.h> |
7193eb01 |
170 | #endif /* sun */ |
bed98ff9 |
171 | #include <stropts.h> |
bed98ff9 |
172 | #include <afs/venus.h> |
7193eb01 |
173 | #include <afs/auth.h> |
d06251b1 |
174 | #include <afs/dirpath.h> |
175 | #include <afs/ptuser.h> |
7193eb01 |
176 | #include <rx/rxkad.h> |
177 | |
58bbdc54 |
178 | |
87822447 |
179 | static void |
3f4fda20 |
180 | log_error (const char *file, int line, int level, int status, |
42d78dfb |
181 | const server_rec * s, const char *fmt, ...) |
4d47a8d9 |
182 | { |
3f4fda20 |
183 | char errstr[4096]; |
184 | va_list ap; |
4d47a8d9 |
185 | |
3f4fda20 |
186 | va_start (ap, fmt); |
187 | vsnprintf (errstr, 1024, fmt, ap); |
188 | va_end (ap); |
4d47a8d9 |
189 | |
c9d59a9c |
190 | #ifdef APACHE2 |
3f4fda20 |
191 | ap_log_error (file, line, level | APLOG_NOERRNO, status, s, "(%d) %s", getpid(), errstr); |
87822447 |
192 | #else |
3f4fda20 |
193 | ap_log_error (file, line, level | APLOG_NOERRNO, s, "(%d) %s", getpid(), errstr); |
87822447 |
194 | #endif |
4d47a8d9 |
195 | |
87822447 |
196 | } |
4d47a8d9 |
197 | |
3f4fda20 |
198 | waklog_config *retrieve_config(request_rec *r) { |
199 | |
200 | request_rec *my; |
201 | waklog_config *cfg; |
202 | |
203 | if ( r && r->main ) { |
204 | my = r->main; |
205 | } else if (r) { |
206 | my = r; |
207 | } else { |
208 | return NULL; |
209 | } |
210 | |
211 | if ( my && ( cfg = (waklog_config *) ap_get_module_config(my->per_dir_config, &waklog_module ) ) ) { |
212 | return cfg; |
213 | } else { |
214 | getModConfig (cfg, r->server); |
215 | } |
216 | |
217 | return cfg; |
218 | |
219 | } |
313dde40 |
220 | |
3f4fda20 |
221 | /* set_auth -- sets the tokens of the current process to this user. |
222 | if "self" is set, it divines the user from the current requests' environment. |
223 | otherwise, it's gettng it from principal/keytab */ |
224 | |
225 | int |
226 | set_auth ( server_rec *s, request_rec *r, int self, char *principal, char *keytab, int storeonly ) { |
227 | |
228 | int i; |
229 | int usecached = 0; |
230 | krb5_error_code kerror = 0; |
231 | krb5_principal kprinc = NULL; |
232 | krb5_get_init_creds_opt kopts; |
233 | krb5_creds v5creds; |
234 | krb5_creds increds; |
c760f0a1 |
235 | krb5_ccache clientccache; |
3f4fda20 |
236 | struct ktc_principal server = { "afs", "", "" }; |
237 | struct ktc_principal client; |
238 | struct ktc_token token; |
239 | krb5_creds *v5credsp = NULL; |
240 | krb5_keytab krb5kt = NULL; |
241 | char buf[MAXNAMELEN]; |
242 | waklog_config *cfg; |
243 | int rc = 0; |
244 | int buflen = 0; |
245 | time_t oldest_time = 0; |
c760f0a1 |
246 | int oldest = 0; |
3f4fda20 |
247 | int stored = -1; |
248 | time_t mytime; |
249 | int indentical; |
c8563f50 |
250 | int cell_in_principal; |
251 | int attempt; |
7c53b5d0 |
252 | int use_client_credentials = 0; |
3f4fda20 |
253 | |
c760f0a1 |
254 | char k5user[MAXNAMELEN] = ""; |
255 | char *k5secret = NULL; |
256 | |
7c53b5d0 |
257 | char *k5path = NULL; |
3f4fda20 |
258 | |
259 | memset((char *) &increds, 0, sizeof(increds)); |
3f4fda20 |
260 | /* init some stuff if it ain't already */ |
c760f0a1 |
261 | /* XXX - In what situation will these not be initialized? */ |
262 | |
3f4fda20 |
263 | if ( ! child.kcontext ) { |
c760f0a1 |
264 | if ((kerror = krb5_init_context(&child.kcontext))) { |
265 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize Kerberos context err=%d", |
266 | kerror); |
267 | return(-1); |
268 | } |
7c53b5d0 |
269 | } |
c760f0a1 |
270 | |
271 | if ( !child.ccache) { |
272 | if ((kerror = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache))) { |
273 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize credentials cache %s err=%d", |
274 | k5path, kerror ); |
275 | return(-1); |
276 | } |
3f4fda20 |
277 | } |
278 | |
d3bea354 |
279 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth: %d, %s, %s, %d, KRB5CC=%s user=%s", |
7c53b5d0 |
280 | self, principal ? principal : "NULL", |
d3bea354 |
281 | keytab ? keytab : "NULL", |
282 | storeonly, |
283 | k5path ? k5path : "NULL", |
284 | #ifdef APACHE2 |
285 | (r && r->user) ? r->user : "NULL" |
286 | #else |
c760f0a1 |
287 | (r && r->connection && r->connection->user) ? r->connection->user : "NULL" |
d3bea354 |
288 | #endif |
289 | ); |
3f4fda20 |
290 | |
291 | /* pull the server config record that we care about... */ |
292 | |
293 | if ( r ) { |
294 | cfg = retrieve_config(r); |
295 | } else { |
296 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
297 | "mod_waklog: set_auth using no config" ); |
3f4fda20 |
298 | getModConfig (cfg, s); |
299 | } |
300 | |
301 | if ( ! cfg ) { |
302 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: cfg is %d", cfg ); |
303 | } |
c760f0a1 |
304 | |
305 | |
3f4fda20 |
306 | if ( self ) { |
307 | /* pull out our principal name and stuff from the environment -- webauth better have sent |
c760f0a1 |
308 | through. */ |
309 | |
310 | #ifdef APACHE2 |
3f4fda20 |
311 | if ( ! ( r && r->connection && r->user )) { |
312 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: self authentication selected, but no data available"); |
7c53b5d0 |
313 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: r->user=%s", (r->user==NULL ? "null" : r->user==NULL)); |
3f4fda20 |
314 | return -1; |
315 | } |
316 | |
317 | strncpy(k5user, r->user, sizeof(k5user)); |
c760f0a1 |
318 | #else |
319 | if ( ! (r && r->connection && r->connection->user)) { |
320 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: self authentication selected, but no username available"); |
3f4fda20 |
321 | return -1; |
c760f0a1 |
322 | } |
323 | |
324 | strncpy(k5user, r->connection->user, sizeof(k5user)); |
325 | #endif |
326 | /* if they've supplied a credentials cache */ |
327 | k5path = (char *) MK_TABLE_GET( r->subprocess_env, "KRB5CCNAME" ); |
328 | |
329 | /* the other thing we need is someone's password */ |
330 | k5secret = (char *) MK_TABLE_GET( r->notes, "ATTR_PASSWORD" ); |
3f4fda20 |
331 | |
332 | /* we'll pick this up later after we've checked the cache and current state */ |
333 | |
334 | } else |
c760f0a1 |
335 | if ( principal ) { |
336 | strncpy(k5user, principal, sizeof(k5user)); |
98534230 |
337 | } else |
c760f0a1 |
338 | #ifdef APACHE2 |
339 | if (r && r->user) { |
340 | strncpy(k5user, r->user, sizeof(k5user)); |
341 | } |
342 | #else |
343 | if (r && r->connection && r->connection->user) { |
344 | strncpy(k5user, r->connection->user, sizeof(k5user)); |
3f4fda20 |
345 | } |
c760f0a1 |
346 | #endif |
3f4fda20 |
347 | |
7c53b5d0 |
348 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth: k5user=%s", k5user ? k5user : "NULL"); |
3f4fda20 |
349 | mytime = time(0); |
350 | |
351 | /* see if we should just go ahead and ignore this call, since we already should be set to these |
352 | credentials */ |
313dde40 |
353 | |
3f4fda20 |
354 | if ( ! storeonly ) { |
313dde40 |
355 | |
3f4fda20 |
356 | #ifdef use_pthreads |
357 | pthread_rwlock_rdlock( sharedlock ); |
358 | #else |
359 | rw_rdlock( sharedlock ); |
360 | #endif |
313dde40 |
361 | |
3f4fda20 |
362 | for ( i = 0; i < SHARED_TABLE_SIZE; ++i ) { |
363 | |
364 | /* if it's a token for the principal we're looking for, and it hasn't expired yet */ |
365 | |
366 | if ( ( !strcmp( k5user, |
367 | sharedspace->sharedtokens[i].clientprincipal ) ) && |
368 | ( sharedspace->sharedtokens[i].token.endTime > mytime ) ) { |
369 | |
370 | if ( ! memcmp(&child.token, &sharedspace->sharedtokens[i].token, sizeof(child.token) ) ) { |
371 | indentical = 1; |
372 | } else { |
373 | indentical = 0; |
374 | } |
375 | |
376 | /* copy the token out of the cache and into the child object */ |
377 | |
378 | strcpy(child.clientprincipal, sharedspace->sharedtokens[i].clientprincipal ); |
379 | memcpy(&child.token, &sharedspace->sharedtokens[i].token, sizeof(child.token)); |
380 | memcpy(&child.server, &sharedspace->sharedtokens[i].server, sizeof(child.server)); |
381 | memcpy(&child.client, &sharedspace->sharedtokens[i].client, sizeof(child.client)); |
382 | |
383 | /* set our last used time thing */ |
384 | sharedspace->sharedtokens[i].lastused = mytime; |
385 | |
386 | usecached = 1; |
387 | |
388 | break; |
389 | |
390 | } |
391 | |
392 | } |
393 | |
394 | /* release the lock on the token cache */ |
395 | #ifdef use_pthreads |
396 | pthread_rwlock_unlock( sharedlock ); |
397 | #else |
398 | rw_unlock( sharedlock ); |
399 | #endif |
313dde40 |
400 | |
3f4fda20 |
401 | if ( usecached ) { |
402 | /* release the lock on the token cache */ |
403 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, |
404 | "mod_waklog: set_auth using shared token %d for %s", i, k5user ); |
405 | |
406 | } |
407 | |
408 | /* if this is something that was in the cache, and it's the same as the token we already have stored, |
409 | and we weren't calling this just to renew it... */ |
410 | |
411 | if ( usecached && indentical ) { |
412 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: token is identical for %s", k5user ); |
413 | return 0; |
414 | } |
415 | |
416 | } |
7c53b5d0 |
417 | |
3f4fda20 |
418 | /* if 'usecached' isn't set, we've got to get our tokens from somewhere... */ |
3f4fda20 |
419 | if (( ! usecached ) && ( k5user )) { |
313dde40 |
420 | |
3f4fda20 |
421 | /* clear out the creds structure */ |
422 | memset((void *) &v5creds, 0, sizeof(v5creds)); |
423 | |
424 | /* create a principal out of our k5user string */ |
425 | |
c760f0a1 |
426 | if ( ( kerror = krb5_parse_name (child.kcontext, k5user, &kprinc ) ) ) { |
3f4fda20 |
427 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_parse_name %s", (char *) error_message(kerror) ); |
428 | goto cleanup; |
429 | } |
430 | |
431 | /* create the credentials options */ |
432 | |
433 | krb5_get_init_creds_opt_init ( &kopts ); |
434 | krb5_get_init_creds_opt_set_tkt_life ( &kopts, TKT_LIFE ); |
435 | krb5_get_init_creds_opt_set_renew_life ( &kopts, 0 ); |
436 | krb5_get_init_creds_opt_set_forwardable ( &kopts, 0 ); |
437 | krb5_get_init_creds_opt_set_proxiable ( &kopts, 0 ); |
438 | |
c760f0a1 |
439 | if ( keytab || k5secret ) { |
3f4fda20 |
440 | |
c760f0a1 |
441 | if (keytab) { |
442 | /* if we've been passed a keytab, we're going to be getting our credentials from it */ |
3f4fda20 |
443 | |
c760f0a1 |
444 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: using keytab %s", keytab); |
3f4fda20 |
445 | |
c760f0a1 |
446 | if ( ( kerror = krb5_kt_resolve(child.kcontext, keytab, &krb5kt ) ) ) { |
447 | log_error( APLOG_MARK, APLOG_ERR, 0, s, |
448 | "mod_waklog: krb5_kt_resolve %s", error_message(kerror) ); |
449 | goto cleanup; |
450 | } |
3f4fda20 |
451 | |
c760f0a1 |
452 | if ((kerror = krb5_get_init_creds_keytab (child.kcontext, &v5creds, |
453 | kprinc, krb5kt, 0, NULL, &kopts ) ) ) { |
454 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_init_creds_keytab %s", |
455 | error_message(kerror) ); |
456 | goto cleanup; |
457 | } |
458 | } else if (k5secret) { |
3f4fda20 |
459 | |
c760f0a1 |
460 | /* If the WebSSO is lame enough to provide a secret, then try and use that to get a token */ |
3f4fda20 |
461 | |
c760f0a1 |
462 | if ((kerror = krb5_get_init_creds_password ( child.kcontext, &v5creds, |
463 | kprinc, k5secret, NULL, NULL, 0, NULL, &kopts ) ) ) { |
464 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_init_creds_password %s", |
465 | error_message(kerror) ); |
466 | /* nuke the password so it doesn't end up in core files */ |
467 | memset(k5secret, 0, sizeof(k5secret)); |
468 | goto cleanup; |
469 | } |
3f4fda20 |
470 | |
c760f0a1 |
471 | memset(k5secret, 0, sizeof(k5secret)); |
3f4fda20 |
472 | } |
c760f0a1 |
473 | |
3f4fda20 |
474 | /* initialize the credentials cache and store the stuff we just got */ |
c760f0a1 |
475 | if ( ( kerror = krb5_cc_initialize (child.kcontext, child.ccache, kprinc) ) ) { |
7c53b5d0 |
476 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: init credentials cache %s", |
477 | error_message(kerror)); |
478 | goto cleanup; |
479 | } |
3f4fda20 |
480 | |
c760f0a1 |
481 | if ( ( kerror = krb5_cc_store_cred(child.kcontext, child.ccache, &v5creds) ) ) { |
7c53b5d0 |
482 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot store credentials %s", |
483 | error_message(kerror)); |
484 | goto cleanup; |
485 | } |
3f4fda20 |
486 | |
c760f0a1 |
487 | krb5_free_cred_contents(child.kcontext, &v5creds); |
488 | |
489 | if ( kerror ) { |
490 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: store cred %s", error_message(kerror)); |
491 | goto cleanup; |
492 | } |
493 | |
494 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: kinit ok for %s", k5user ); |
495 | |
496 | } else if (k5path) { |
497 | /* If we've got a path to a credentials cache, then try and use that. We can't just |
498 | * replace child.creds, because we want to ensure that only this request gets access to |
499 | * that cache */ |
500 | |
501 | if ( ( kerror = krb5_cc_resolve(child.kcontext, k5path, &clientccache ) ) ) { |
502 | log_error(APLOG_MARK, APLOG_ERR, 0, s, |
503 | "mod_waklog: can't open provided credentials cache %s err=%d", |
504 | k5path, kerror ); |
505 | goto cleanup; |
506 | } |
507 | |
508 | use_client_credentials = 1; |
509 | } |
3f4fda20 |
510 | |
3f4fda20 |
511 | /* now, to the 'aklog' portion of our program. */ |
512 | |
c8563f50 |
513 | /** we make two attempts here, one for afs@REALM and one for afs/cell@REALM */ |
514 | for(attempt = 0; attempt <= 1; attempt++) { |
98534230 |
515 | strncpy( buf, "afs", sizeof(buf) - 1 ); |
c8563f50 |
516 | cell_in_principal = (cfg->cell_in_principal + attempt) % 2; |
517 | |
518 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: cell_in_principal=%d", cell_in_principal ); |
519 | if (cell_in_principal) { |
98534230 |
520 | strncat(buf, "/", sizeof(buf) - strlen(buf) - 1); |
c8563f50 |
521 | strncat(buf, cfg->afs_cell, sizeof(buf) - strlen(buf) - 1); |
522 | } |
98534230 |
523 | if (cfg->afs_cell_realm != WAKLOG_UNSET) { |
524 | strncat(buf, "@", sizeof(buf) - strlen(buf) - 1); |
525 | strncat(buf, cfg->afs_cell_realm, sizeof(buf) - strlen(buf) - 1); |
526 | } |
c8563f50 |
527 | |
528 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: using AFS principal: %s", buf); |
529 | |
530 | if ((kerror = krb5_parse_name (child.kcontext, buf, &increds.server))) { |
531 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_parse name %s", error_message(kerror)); |
532 | goto cleanup; |
533 | } |
7c53b5d0 |
534 | |
c760f0a1 |
535 | if (!use_client_credentials) { |
536 | clientccache = child.ccache; |
537 | } |
538 | |
539 | if ((kerror = krb5_cc_get_principal(child.kcontext, clientccache, &increds.client))) { |
540 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_cc_get_princ %s %p", error_message(kerror), clientccache); |
c8563f50 |
541 | goto cleanup; |
542 | } |
543 | |
544 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: retrieved data from ccache for %s", k5user); |
545 | |
546 | increds.times.endtime = 0; |
547 | |
548 | increds.keyblock.enctype = ENCTYPE_DES_CBC_CRC; |
549 | |
c760f0a1 |
550 | if ( ( kerror = krb5_get_credentials (child.kcontext, 0, clientccache, &increds, &v5credsp ) ) ) { |
c8563f50 |
551 | /* only complain once we've tried both afs@REALM and afs/cell@REALM */ |
552 | if (attempt>=1) { |
553 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_credentials: %s", |
554 | error_message(kerror)); |
555 | goto cleanup; |
556 | } else { |
557 | continue; |
558 | } |
559 | } |
560 | cfg->cell_in_principal = cell_in_principal; |
561 | break; |
3f4fda20 |
562 | } |
c8563f50 |
563 | |
3f4fda20 |
564 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: get_credentials passed for %s", k5user); |
565 | |
566 | if ( v5credsp->ticket.length >= MAXKTCTICKETLEN ) { |
567 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: ticket size (%d) too big to fake", |
568 | v5credsp->ticket.length); |
569 | goto cleanup; |
570 | } |
313dde40 |
571 | |
3f4fda20 |
572 | memset(&token, 0, sizeof(struct ktc_token)); |
573 | |
574 | token.startTime = v5credsp->times.starttime ? v5credsp->times.starttime : v5credsp->times.authtime; |
575 | token.endTime = v5credsp->times.endtime; |
576 | |
577 | memmove( &token.sessionKey, v5credsp->keyblock.contents, v5credsp->keyblock.length); |
578 | token.kvno = RXKAD_TKT_TYPE_KERBEROS_V5; |
579 | token.ticketLen = v5credsp->ticket.length; |
580 | memmove( token.ticket, v5credsp->ticket.data, token.ticketLen); |
581 | |
582 | /* build the name */ |
583 | |
584 | memmove( buf, v5credsp->client->data[0].data, min(v5credsp->client->data[0].length, |
585 | MAXKTCNAMELEN -1 )); |
586 | buf[v5credsp->client->data[0].length] = '\0'; |
587 | if ( v5credsp->client->length > 1 ) { |
588 | strncat(buf, ".", sizeof(buf) - strlen(buf) - 1); |
589 | buflen = strlen(buf); |
590 | memmove(buf + buflen, v5credsp->client->data[1].data, |
591 | min(v5credsp->client->data[1].length, |
592 | MAXKTCNAMELEN - strlen(buf) - 1)); |
593 | buf[buflen + v5credsp->client->data[1].length] = '\0'; |
594 | } |
595 | |
596 | /* assemble the client */ |
597 | strncpy(client.name, buf, sizeof(client.name) - 1 ); |
598 | strncpy(client.instance, "", sizeof(client.instance) - 1 ); |
599 | memmove(buf, v5credsp->client->realm.data, min(v5credsp->client->realm.length, |
600 | MAXKTCNAMELEN - 1)); |
601 | buf[v5credsp->client->realm.length] = '\0'; |
602 | strncpy(client.cell, buf, sizeof(client.cell)); |
603 | |
604 | /* assemble the server's cell */ |
891fb458 |
605 | strncpy(server.cell, cfg->afs_cell, sizeof(server.cell) - 1); |
3f4fda20 |
606 | |
607 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: preparing to init PTS connection for %s", server.cell); |
608 | |
609 | /* fill out the AFS ID in the client name */ |
610 | /* we've done a pr_Initialize in the child_init -- once, per process. If you try to do it more |
611 | * strange things seem to happen. */ |
612 | |
613 | { |
614 | afs_int32 viceId = 0; |
615 | |
616 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: making PTS call to look up %s", client.name); |
617 | |
618 | if ( ( rc = pr_SNameToId( client.name, &viceId ) ) == 0 ) { |
619 | snprintf( client.name, sizeof(client.name), "AFS ID %d", viceId ); |
620 | } else { |
621 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: PTS call returned error %d ", rc); |
622 | } |
623 | |
624 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: PTS call returned %s ", client.name); |
625 | |
626 | } |
627 | |
628 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: server: name %s, instance %s, cell %s", |
629 | server.name, server.instance, server.cell ); |
630 | |
631 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: client: name %s, instance %s, cell %s", |
632 | client.name, client.instance, client.cell ); |
633 | |
634 | /* copy the resulting stuff into the child structure */ |
635 | |
636 | strncpy(child.clientprincipal, k5user, sizeof(child.clientprincipal)); |
637 | memcpy(&child.token, &token, sizeof(child.token)); |
638 | memcpy(&child.server, &server, sizeof(child.server)); |
639 | memcpy(&child.client, &client, sizeof(child.client)); |
640 | |
641 | /* stuff the resulting token-related stuff into our shared token cache */ |
642 | /* note, that anything that was set from a keytab is "persistant", and is immune |
643 | * from LRU-aging. This is because nothing but the process that's running as root |
644 | * can update these, and it's running every hour or so and renewing these tokens. |
645 | * and we don't want them aged out. |
646 | */ |
647 | |
648 | mytime = oldest_time = time(0); |
649 | |
650 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: waiting for shared space for %s ", k5user); |
4e1ae1cd |
651 | |
3f4fda20 |
652 | #ifdef use_pthreads |
653 | pthread_rwlock_wrlock(sharedlock); |
654 | #else |
655 | rw_wrlock(sharedlock); |
656 | #endif |
4e1ae1cd |
657 | |
3f4fda20 |
658 | for( i = ( SHARED_TABLE_SIZE - 1 ); i >= 0; i-- ) { |
659 | if ( ( sharedspace->sharedtokens[i].lastused <= oldest_time) && |
660 | ( sharedspace->sharedtokens[i].persist == 0 ) ) { |
661 | oldest = i; |
662 | oldest_time = sharedspace->sharedtokens[i].lastused; |
663 | } |
664 | if ( ! strcmp ( sharedspace->sharedtokens[i].clientprincipal, |
665 | child.clientprincipal ) ) { |
666 | memcpy(&sharedspace->sharedtokens[i].token, &child.token, sizeof(child.token) ); |
667 | memcpy(&sharedspace->sharedtokens[i].client, &child.client, sizeof(child.client) ); |
668 | memcpy(&sharedspace->sharedtokens[i].server, &child.server, sizeof(child.server) ); |
669 | sharedspace->sharedtokens[i].lastused = mytime; |
670 | sharedspace->sharedtokens[i].persist = keytab ? 1 : 0; |
671 | stored = i; |
672 | break; |
673 | } |
674 | } |
675 | |
676 | if ( stored == -1 ) { |
677 | memcpy(&sharedspace->sharedtokens[oldest].token, &child.token, sizeof(child.token) ); |
678 | memcpy(&sharedspace->sharedtokens[oldest].client, &child.client, sizeof(child.client) ); |
679 | memcpy(&sharedspace->sharedtokens[oldest].server, &child.server, sizeof(child.server) ); |
680 | strcpy(sharedspace->sharedtokens[oldest].clientprincipal, child.clientprincipal ); |
681 | sharedspace->sharedtokens[oldest].lastused = mytime; |
682 | sharedspace->sharedtokens[oldest].persist = keytab ? 1 : 0; |
683 | stored = oldest; |
684 | } |
3ed1e28a |
685 | |
3f4fda20 |
686 | #ifdef use_pthreads |
687 | pthread_rwlock_unlock(sharedlock); |
688 | #else |
689 | rw_unlock(sharedlock); |
690 | #endif |
691 | |
692 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: token stored in slot %d for %s", stored, |
693 | child.clientprincipal ); |
694 | |
695 | } else if ( ! usecached ) { |
696 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth divergent case"); |
697 | } |
698 | |
699 | if ( storeonly ) { |
700 | goto cleanup; |
701 | } |
702 | |
703 | usecachedtoken: |
704 | |
705 | /* don't ask. Something about AIX. We're leaving it here.*/ |
706 | /* write(2, "", 0); */ |
707 | |
708 | /* we try twice, because sometimes the first one fails. Dunno why, but it always works the second time */ |
709 | |
710 | if ((rc = ktc_SetToken(&child.server, &child.token, &child.client, 0))) { |
711 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: settoken returned %s for %s -- trying again", |
712 | error_message(rc), k5user); |
713 | if ((rc = ktc_SetToken(&child.server, &child.token, &child.client, 0))) { |
714 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: settoken2 returned %s for %s", |
715 | error_message(rc), k5user); |
716 | goto cleanup; |
717 | } |
718 | } |
719 | |
720 | cleanup: |
c760f0a1 |
721 | if (use_client_credentials) |
722 | krb5_cc_close(child.kcontext, clientccache); |
3f4fda20 |
723 | if ( v5credsp ) |
724 | krb5_free_cred_contents(child.kcontext, v5credsp); |
725 | if ( increds.client ) |
726 | krb5_free_principal (child.kcontext, increds.client); |
727 | if ( increds.server ) |
728 | krb5_free_principal (child.kcontext, increds.server); |
729 | if ( krb5kt ) |
730 | (void) krb5_kt_close(child.kcontext, krb5kt); |
731 | if ( kprinc ) |
732 | krb5_free_principal (child.kcontext, kprinc); |
733 | |
734 | if ( rc ) { |
735 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth ending with %d", rc ); |
736 | } else if ( kerror ) { |
737 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth ending with krb5 error %d, %s", kerror, error_message(kerror)); |
738 | } else { |
739 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth ending ok"); |
740 | } |
741 | |
742 | return kerror ? (int) kerror : (int) rc; |
743 | |
4e1ae1cd |
744 | } |
745 | |
746 | |
7193eb01 |
747 | |
3f4fda20 |
748 | static void * |
749 | waklog_create_server_config (MK_POOL * p, server_rec * s) |
750 | { |
751 | waklog_config *cfg; |
752 | |
753 | cfg = (waklog_config *) ap_pcalloc (p, sizeof (waklog_config)); |
754 | cfg->p = p; |
755 | memset(cfg, 0, sizeof(waklog_config)); |
756 | cfg->path = "(server)"; |
757 | cfg->protect = WAKLOG_UNSET; |
758 | cfg->usertokens = WAKLOG_UNSET; |
21a7788b |
759 | cfg->disable_token_cache = WAKLOG_UNSET; |
3f4fda20 |
760 | cfg->keytab = WAKLOG_UNSET; |
761 | cfg->principal = WAKLOG_UNSET; |
762 | cfg->default_principal = WAKLOG_UNSET; |
763 | cfg->default_keytab = WAKLOG_UNSET; |
764 | cfg->afs_cell = WAKLOG_UNSET; |
98534230 |
765 | cfg->afs_cell_realm = WAKLOG_UNSET; |
3f4fda20 |
766 | cfg->forked = 0; |
767 | cfg->configured = 0; |
768 | |
769 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
770 | "mod_waklog: server config created."); |
3f4fda20 |
771 | |
772 | return (cfg); |
773 | } |
7193eb01 |
774 | |
3f4fda20 |
775 | /* initialize with host-config information */ |
58bbdc54 |
776 | |
3f4fda20 |
777 | static void * |
778 | waklog_create_dir_config (MK_POOL * p, char *dir) |
779 | { |
780 | waklog_config *cfg; |
781 | |
782 | cfg = (waklog_config *) ap_pcalloc (p, sizeof (waklog_config)); |
783 | memset(cfg, 0, sizeof(waklog_config)); |
784 | cfg->p = p; |
785 | cfg->path = ap_pstrdup(p, dir ); |
786 | cfg->protect = WAKLOG_UNSET; |
787 | cfg->usertokens = WAKLOG_UNSET; |
21a7788b |
788 | cfg->disable_token_cache = WAKLOG_UNSET; |
3f4fda20 |
789 | cfg->keytab = WAKLOG_UNSET; |
790 | cfg->principal = WAKLOG_UNSET; |
791 | cfg->default_principal = WAKLOG_UNSET; |
792 | cfg->default_keytab = WAKLOG_UNSET; |
793 | cfg->afs_cell = WAKLOG_UNSET; |
98534230 |
794 | cfg->afs_cell_realm = WAKLOG_UNSET; |
3f4fda20 |
795 | cfg->forked = 0; |
796 | cfg->configured = 0; |
797 | |
798 | return (cfg); |
58bbdc54 |
799 | } |
800 | |
3f4fda20 |
801 | static void *waklog_merge_dir_config(MK_POOL *p, void *parent_conf, void *newloc_conf) { |
58bbdc54 |
802 | |
3f4fda20 |
803 | waklog_config *merged = ( waklog_config * ) ap_pcalloc(p, sizeof(waklog_config ) ); |
804 | waklog_config *parent = ( waklog_config * ) parent_conf; |
805 | waklog_config *child = ( waklog_config * ) newloc_conf; |
806 | |
807 | merged->protect = child->protect != WAKLOG_UNSET ? child->protect : parent->protect; |
808 | |
809 | merged->path = child->path != WAKLOG_UNSET ? child->path : parent->path; |
810 | |
811 | merged->usertokens = child->usertokens != WAKLOG_UNSET ? child->usertokens : parent->usertokens; |
21a7788b |
812 | |
813 | merged->disable_token_cache = child->disable_token_cache != WAKLOG_UNSET ? child->disable_token_cache : parent->disable_token_cache; |
3f4fda20 |
814 | |
815 | merged->principal = child->principal != WAKLOG_UNSET ? child->principal : parent->principal; |
816 | |
817 | merged->keytab = child->keytab != WAKLOG_UNSET ? child->keytab : parent->keytab; |
818 | |
819 | merged->default_keytab = child->default_keytab != WAKLOG_UNSET ? child->default_keytab : parent->default_keytab; |
820 | |
821 | merged->default_principal = child->default_principal != WAKLOG_UNSET ? child->default_principal : parent->default_principal; |
822 | |
823 | merged->afs_cell = child->afs_cell != WAKLOG_UNSET ? child->afs_cell : parent->afs_cell; |
98534230 |
824 | |
825 | merged->afs_cell_realm = child->afs_cell_realm != WAKLOG_UNSET ? child->afs_cell_realm : parent->afs_cell_realm; |
3f4fda20 |
826 | |
827 | return (void *) merged; |
828 | |
829 | } |
58bbdc54 |
830 | |
3f4fda20 |
831 | static void *waklog_merge_server_config(MK_POOL *p, void *parent_conf, void *newloc_conf) { |
58bbdc54 |
832 | |
3f4fda20 |
833 | waklog_config *merged = ( waklog_config * ) ap_pcalloc(p, sizeof(waklog_config ) ); |
834 | waklog_config *pconf = ( waklog_config * ) parent_conf; |
835 | waklog_config *nconf = ( waklog_config * ) newloc_conf; |
836 | |
837 | merged->protect = nconf->protect == WAKLOG_UNSET ? pconf->protect : nconf->protect; |
58bbdc54 |
838 | |
3f4fda20 |
839 | merged->usertokens = nconf->usertokens == WAKLOG_UNSET ? pconf->usertokens : nconf->usertokens; |
58bbdc54 |
840 | |
bce7d4d9 |
841 | merged->disable_token_cache = nconf->disable_token_cache == WAKLOG_UNSET ? pconf->disable_token_cache : nconf->disable_token_cache; |
21a7788b |
842 | |
3f4fda20 |
843 | merged->keytab = nconf->keytab == WAKLOG_UNSET ? ap_pstrdup(p, pconf->keytab) : |
844 | ( nconf->keytab == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->keytab) ); |
845 | |
846 | merged->principal = nconf->principal == WAKLOG_UNSET ? ap_pstrdup(p, pconf->principal) : |
847 | ( nconf->principal == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->principal) ); |
848 | |
849 | merged->afs_cell = nconf->afs_cell == WAKLOG_UNSET ? ap_pstrdup(p, pconf->afs_cell) : |
850 | ( nconf->afs_cell == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->afs_cell) ); |
851 | |
98534230 |
852 | merged->afs_cell_realm = nconf->afs_cell_realm == WAKLOG_UNSET ? ap_pstrdup(p, pconf->afs_cell_realm) : |
853 | ( nconf->afs_cell_realm == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->afs_cell_realm) ); |
854 | |
3f4fda20 |
855 | merged->default_keytab = nconf->default_keytab == WAKLOG_UNSET ? ap_pstrdup(p, pconf->default_keytab) : |
856 | ( nconf->default_keytab == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->default_keytab) ); |
58bbdc54 |
857 | |
3f4fda20 |
858 | merged->default_principal = nconf->default_principal == WAKLOG_UNSET ? ap_pstrdup(p, pconf->default_principal) : |
859 | ( nconf->default_principal == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->default_principal) ); |
860 | |
861 | |
862 | return (void *) merged; |
863 | |
864 | } |
865 | |
866 | static const char * |
21a7788b |
867 | set_waklog_enabled (cmd_parms * params, void *mconfig, int flag) |
58bbdc54 |
868 | { |
3f4fda20 |
869 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
870 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
871 | |
872 | cfg->protect = flag; |
873 | cfg->configured = 1; |
874 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
21a7788b |
875 | "mod_waklog: waklog_enabled set on %s", cfg->path ? cfg->path : "NULL"); |
3f4fda20 |
876 | return (NULL); |
877 | } |
58bbdc54 |
878 | |
7193eb01 |
879 | |
3f4fda20 |
880 | /* this adds a principal/keytab pair to get their tokens renewed by the |
881 | child process every few centons. */ |
7193eb01 |
882 | |
3f4fda20 |
883 | void add_to_renewtable(MK_POOL *p, char *keytab, char *principal) { |
87822447 |
884 | |
3f4fda20 |
885 | int i; |
886 | |
887 | if ( renewcount >= SHARED_TABLE_SIZE ) { |
888 | log_error(APLOG_MARK, APLOG_DEBUG, 0, NULL, "mod_waklog: big problem. Increase the SHARED_TABLE_SIZE or \ |
889 | decrease your tokens."); |
b74fad73 |
890 | return; |
3f4fda20 |
891 | } |
892 | |
893 | /* check to see if it's already there */ |
894 | |
895 | for ( i = 0; i < renewcount; i++ ) { |
896 | if ( ! strcmp(renewtable[i].principal, principal ) ) { |
897 | return; |
898 | } |
899 | } |
900 | |
901 | renewtable[renewcount].keytab = ap_pstrdup(p, keytab); |
902 | renewtable[renewcount].principal = ap_pstrdup(p, principal); |
903 | renewtable[renewcount].lastrenewed = 0; |
904 | ++renewcount; |
905 | |
b74fad73 |
906 | } |
907 | |
3f4fda20 |
908 | static const char * |
21a7788b |
909 | set_waklog_location_principal (cmd_parms *params, void *mconfig, char *principal, char *keytab) |
3f4fda20 |
910 | { |
911 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
912 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
913 | |
914 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
915 | "mod_waklog: configuring principal: %s, keytab: %s", principal, keytab); |
916 | |
917 | cfg->principal = ap_pstrdup(params->pool, principal); |
3f4fda20 |
918 | cfg->keytab = ap_pstrdup (params->pool, keytab); |
919 | |
920 | add_to_renewtable(params->pool, keytab, principal); |
921 | |
922 | cfg->configured = 1; |
923 | |
924 | return (NULL); |
925 | } |
b74fad73 |
926 | |
3f4fda20 |
927 | static const char * |
21a7788b |
928 | set_waklog_afs_cell (cmd_parms * params, void *mconfig, char *file) |
313dde40 |
929 | { |
891fb458 |
930 | waklog_config *waklog_mconfig = ( waklog_config * ) mconfig; |
931 | waklog_config *waklog_srvconfig = |
3f4fda20 |
932 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
933 | |
891fb458 |
934 | log_error (APLOG_MARK, APLOG_INFO, 0, params->server, |
42d78dfb |
935 | "mod_waklog: will use afs_cell: %s", file); |
313dde40 |
936 | |
c8563f50 |
937 | waklog_srvconfig->cell_in_principal = 0; |
891fb458 |
938 | waklog_srvconfig->afs_cell = ap_pstrdup (params->pool, file); |
939 | waklog_srvconfig->configured = 1; |
940 | |
941 | if (waklog_mconfig != NULL) { |
c8563f50 |
942 | waklog_mconfig->cell_in_principal = waklog_srvconfig->cell_in_principal; |
891fb458 |
943 | waklog_mconfig->afs_cell = ap_pstrdup (params->pool, file); |
944 | waklog_mconfig->configured = 1; |
945 | } |
3f4fda20 |
946 | return (NULL); |
947 | } |
58bbdc54 |
948 | |
98534230 |
949 | static const char * |
950 | set_waklog_afs_cell_realm (cmd_parms * params, void *mconfig, char *file) |
951 | { |
952 | waklog_config *waklog_mconfig = ( waklog_config * ) mconfig; |
953 | waklog_config *waklog_srvconfig = |
954 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
955 | |
956 | log_error (APLOG_MARK, APLOG_INFO, 0, params->server, |
957 | "mod_waklog: will use afs_cell_realm: %s", file); |
958 | |
959 | waklog_srvconfig->afs_cell_realm = ap_pstrdup (params->pool, file); |
960 | |
961 | if (waklog_mconfig != NULL) { |
962 | waklog_mconfig->afs_cell_realm = ap_pstrdup (params->pool, file); |
963 | } |
964 | return (NULL); |
965 | } |
966 | |
3f4fda20 |
967 | static const char * |
968 | set_waklog_default_principal (cmd_parms * params, void *mconfig, char *principal, char *keytab) |
969 | { |
970 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
971 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
58bbdc54 |
972 | |
3f4fda20 |
973 | waklog_config *srvcfg = ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
4e1ae1cd |
974 | |
3f4fda20 |
975 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
976 | "mod_waklog: set default princ/keytab: %s, %s for %s", principal, keytab, cfg->path ? cfg->path : "NULL"); |
313dde40 |
977 | |
3f4fda20 |
978 | cfg->default_principal = ap_pstrdup (params->pool, principal); |
979 | cfg->default_keytab = ap_pstrdup(params->pool, keytab ); |
980 | |
981 | /* this also gets set at the server level */ |
982 | if ( mconfig && ( ! cfg->path ) ) { |
983 | srvcfg->default_principal = ap_pstrdup (params->pool, principal); |
984 | srvcfg->default_keytab = ap_pstrdup(params->pool, keytab ); |
985 | } else { |
986 | log_error(APLOG_MARK, APLOG_ERR, 0, params->server, "only able to set default principal on a global level!"); |
987 | return "Unable to set DefaultPrincipal outside of top level config!"; |
988 | } |
989 | |
990 | add_to_renewtable( params->pool, keytab, principal ); |
991 | |
992 | cfg->configured = 1; |
993 | |
994 | return (NULL); |
995 | } |
313dde40 |
996 | |
3f4fda20 |
997 | static const char * |
998 | set_waklog_use_usertokens (cmd_parms * params, void *mconfig, int flag) |
bed98ff9 |
999 | { |
3f4fda20 |
1000 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
1001 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
bed98ff9 |
1002 | |
3f4fda20 |
1003 | cfg->usertokens = flag; |
bed98ff9 |
1004 | |
3f4fda20 |
1005 | cfg->configured = 1; |
bed98ff9 |
1006 | |
3f4fda20 |
1007 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
1008 | "mod_waklog: waklog_use_user_tokens set"); |
3f4fda20 |
1009 | return (NULL); |
bed98ff9 |
1010 | } |
1011 | |
1012 | |
21a7788b |
1013 | static const char * |
1014 | set_waklog_disable_token_cache (cmd_parms * params, void *mconfig, int flag) |
1015 | { |
1016 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
1017 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
1018 | |
1019 | cfg->disable_token_cache = flag; |
1020 | |
1021 | cfg->configured = 1; |
1022 | |
1023 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
1024 | "mod_waklog: waklog_disable_token_cache set"); |
1025 | return (NULL); |
1026 | } |
1027 | |
1028 | |
c9d59a9c |
1029 | #ifndef APACHE2 |
3f4fda20 |
1030 | static void waklog_child_exit( server_rec *s, MK_POOL *p ) { |
1031 | #else |
1032 | apr_status_t waklog_child_exit( void *sr ) { |
4e1ae1cd |
1033 | |
3f4fda20 |
1034 | server_rec *s = (server_rec *) sr; |
1035 | #endif |
1036 | |
1037 | if ( child.ccache ) { |
1038 | krb5_cc_close(child.kcontext, child.ccache); |
1039 | } |
1040 | |
1041 | if ( child.kcontext ) { |
1042 | krb5_free_context(child.kcontext); |
1043 | } |
1044 | |
1045 | /* forget our tokens */ |
1046 | |
1047 | ktc_ForgetAllTokens (); |
1048 | |
1049 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1050 | "mod_waklog: waklog_child_exit complete"); |
4e1ae1cd |
1051 | |
c9d59a9c |
1052 | #ifdef APACHE2 |
3f4fda20 |
1053 | return APR_SUCCESS; |
1054 | #endif |
1055 | |
1056 | } |
4e1ae1cd |
1057 | |
3f4fda20 |
1058 | static void |
c9d59a9c |
1059 | #ifdef APACHE2 |
3f4fda20 |
1060 | waklog_child_init (MK_POOL * p, server_rec * s) |
1061 | #else |
1062 | waklog_child_init (server_rec * s, MK_POOL * p) |
1063 | #endif |
1064 | { |
b52ccbb1 |
1065 | |
3f4fda20 |
1066 | krb5_error_code code; |
1067 | waklog_config *cfg; |
1068 | |
1069 | char *cell; |
1070 | |
3f4fda20 |
1071 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init called for pid %d", getpid()); |
1072 | |
1073 | if ( !sharedspace ) { |
1074 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: child_init called without shared space? %d", getpid()); |
1075 | return; |
1076 | } |
1077 | |
1078 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init called for pid %d", getpid()); |
7193eb01 |
1079 | |
3f4fda20 |
1080 | memset (&child, 0, sizeof(child)); |
1081 | |
c760f0a1 |
1082 | if ( ( code = krb5_init_context(&child.kcontext) ) ) { |
3f4fda20 |
1083 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't init kerberos context %d", code ); |
1084 | } |
1085 | |
c760f0a1 |
1086 | if ( ( code = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) ) { |
3f4fda20 |
1087 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", code ); |
1088 | } |
1089 | |
1090 | if ( pag_for_children ) { |
1091 | setpag (); |
1092 | } |
7193eb01 |
1093 | |
3f4fda20 |
1094 | getModConfig (cfg, s); |
7193eb01 |
1095 | |
3f4fda20 |
1096 | if ( cfg->default_principal != WAKLOG_UNSET ) { |
1097 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init setting default user %s, %s", cfg->default_principal, cfg->default_keytab); |
1098 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1099 | } |
7193eb01 |
1100 | |
891fb458 |
1101 | cell = strdup(cfg->afs_cell); |
3f4fda20 |
1102 | pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR, cell ); |
7193eb01 |
1103 | |
c9d59a9c |
1104 | #ifdef APACHE2 |
3f4fda20 |
1105 | apr_pool_cleanup_register(p, s, waklog_child_exit, apr_pool_cleanup_null); |
1106 | #endif |
7193eb01 |
1107 | |
3f4fda20 |
1108 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1109 | "mod_waklog: child_init returned"); |
7193eb01 |
1110 | |
3f4fda20 |
1111 | return; |
1112 | } |
b52ccbb1 |
1113 | |
3f4fda20 |
1114 | command_rec waklog_cmds[] = { |
1115 | |
21a7788b |
1116 | command ("WaklogAFSCell", set_waklog_afs_cell, 0, TAKE1, |
1117 | "Use the supplied AFS cell (required)"), |
7193eb01 |
1118 | |
98534230 |
1119 | command ("WaklogAFSCellRealm", set_waklog_afs_cell_realm, 0, TAKE1, |
1120 | "Assume that the AFS cell belongs to the specified Kerberos realm (optional)"), |
1121 | |
21a7788b |
1122 | command ("WaklogEnabled", set_waklog_enabled, 0, FLAG, |
1123 | "enable waklog on a server, location, or directory basis"), |
7193eb01 |
1124 | |
21a7788b |
1125 | command ("WaklogDefaultPrincipal", set_waklog_default_principal, 0, TAKE2, |
1126 | "Set the default principal that the server runs as"), |
7193eb01 |
1127 | |
21a7788b |
1128 | command ("WaklogLocationPrincipal", set_waklog_location_principal, 0, TAKE2, |
1129 | "Set the principal on a <Location>-specific basis"), |
7193eb01 |
1130 | |
21a7788b |
1131 | command ("WaklogDisableTokenCache", set_waklog_disable_token_cache, 0, FLAG, |
1132 | "Ignore the token cache (location-specific); useful for scripts that need kerberos tickets."), |
1133 | |
1134 | command ("WaklogUseUserTokens", set_waklog_use_usertokens, 0, FLAG, |
1135 | "Use the requesting user tokens (from webauth)"), |
1136 | |
3f4fda20 |
1137 | {NULL} |
1138 | }; |
7193eb01 |
1139 | |
7193eb01 |
1140 | |
3f4fda20 |
1141 | /* not currently using this */ |
7193eb01 |
1142 | |
3f4fda20 |
1143 | static int |
1144 | token_cleanup (void *data) |
1145 | { |
1146 | request_rec *r = (request_rec *) data; |
e2df6441 |
1147 | |
3f4fda20 |
1148 | if (child.token.ticketLen) |
1149 | { |
1150 | memset (&child.token, 0, sizeof (struct ktc_token)); |
e21f34f0 |
1151 | |
3f4fda20 |
1152 | ktc_ForgetAllTokens (); |
7193eb01 |
1153 | |
3f4fda20 |
1154 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1155 | "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", |
1156 | getpid ()); |
3f4fda20 |
1157 | } |
1158 | return 0; |
7193eb01 |
1159 | } |
1160 | |
3f4fda20 |
1161 | static int |
1162 | waklog_child_routine (void *data, child_info * pinfo) |
7193eb01 |
1163 | { |
3f4fda20 |
1164 | int i; |
1165 | server_rec *s = (server_rec *) data; |
1166 | krb5_error_code code; |
1167 | char *cell; |
1168 | time_t sleep_time = ( TKT_LIFE / 2 ) ; |
1169 | time_t when; |
1170 | time_t left; |
1171 | waklog_config *cfg; |
1172 | |
1173 | getModConfig( cfg, s ); |
1174 | |
1175 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: waklog_child_routine started, running as %d", getuid()); |
1176 | |
1177 | memset (&child, 0, sizeof(child)); |
1178 | |
c760f0a1 |
1179 | if ( ( code = krb5_init_context(&child.kcontext) ) ) { |
3f4fda20 |
1180 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't init kerberos context %d", code ); |
1181 | } |
1182 | |
c760f0a1 |
1183 | if ( ( code = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) ) { |
3f4fda20 |
1184 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", code ); |
1185 | } |
1186 | |
c760f0a1 |
1187 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: about to pr_Initialize"); |
1188 | |
3f4fda20 |
1189 | /* need to do this so we can make PTS calls */ |
891fb458 |
1190 | cell = strdup(cfg->afs_cell); /* stupid */ |
3f4fda20 |
1191 | pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR, cell ); |
c760f0a1 |
1192 | |
1193 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: still here"); |
1194 | |
3f4fda20 |
1195 | while(1) { |
1196 | |
1197 | for ( i = 0; i < renewcount; ++i ) { |
1198 | renewtable[i].lastrenewed = time(0); |
1199 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: (pid %d) renewing %s / %s", getpid(), renewtable[i].principal, |
1200 | renewtable[i].keytab); |
1201 | |
1202 | set_auth( s, NULL, 0, renewtable[i].principal, renewtable[i].keytab, 1 ); |
1203 | |
1204 | /* if this is our default token, we want to "stash" it in our current PAG so the parent maintains readability of |
1205 | things that it needs to read */ |
1206 | |
1207 | if ( cfg && cfg->default_principal && ( ! strcmp(cfg->default_principal, renewtable[i].principal ) ) ) { |
1208 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: renewing/setting default tokens" ); |
1209 | set_auth( s, NULL, 0, renewtable[i].principal, renewtable[i].keytab, 0 ); |
1210 | } |
1211 | |
4e1ae1cd |
1212 | } |
1213 | |
3f4fda20 |
1214 | sharedspace->renewcount++; |
1215 | |
1216 | left = sleep_time; |
1217 | |
1218 | while( left > 5 ) { |
1219 | when = time(0); |
1220 | |
1221 | sleep(left); |
1222 | |
1223 | left -= ( time(0) - when ); |
4e1ae1cd |
1224 | } |
3f4fda20 |
1225 | |
1226 | } |
4e1ae1cd |
1227 | |
3f4fda20 |
1228 | pr_End(); |
403921ef |
1229 | |
3f4fda20 |
1230 | } |
4e1ae1cd |
1231 | |
c9d59a9c |
1232 | #ifdef APACHE2 |
3f4fda20 |
1233 | static int |
1234 | waklog_init_handler (apr_pool_t * p, apr_pool_t * plog, |
42d78dfb |
1235 | apr_pool_t * ptemp, server_rec * s) |
3f4fda20 |
1236 | { |
1237 | int rv; |
1238 | extern char *version; |
1239 | apr_proc_t *proc; |
1240 | waklog_config *cfg; |
1241 | void *data; |
1242 | int fd = -1; |
1243 | int use_existing = 1; |
1244 | int oldrenewcount; |
1245 | char cache_file[MAXNAMELEN]; |
1246 | #ifdef use_pthreads |
1247 | pthread_rwlockattr_t rwlock_attr; |
1248 | #endif |
4e1ae1cd |
1249 | |
1250 | |
3f4fda20 |
1251 | getModConfig (cfg, s); |
4e1ae1cd |
1252 | |
3f4fda20 |
1253 | /* initialize_module() will be called twice, and if it's a DSO |
1254 | * then all static data from the first call will be lost. Only |
1255 | * set up our static data on the second call. |
1256 | * see http://issues.apache.org/bugzilla/show_bug.cgi?id=37519 */ |
1257 | apr_pool_userdata_get (&data, userdata_key, s->process->pool); |
7193eb01 |
1258 | |
891fb458 |
1259 | |
1260 | if (cfg->afs_cell==NULL) { |
1261 | log_error (APLOG_MARK, APLOG_ERR, 0, s, |
21a7788b |
1262 | "mod_waklog: afs_cell==NULL; please provide the WaklogAFSCell directive"); |
891fb458 |
1263 | /** clobber apache */ |
1264 | exit(-1); |
1265 | } |
1266 | |
3f4fda20 |
1267 | if (!data) |
1268 | { |
1269 | apr_pool_userdata_set ((const void *) 1, userdata_key, |
42d78dfb |
1270 | apr_pool_cleanup_null, s->process->pool); |
4e1ae1cd |
1271 | } |
3f4fda20 |
1272 | else |
1273 | { |
1274 | log_error (APLOG_MARK, APLOG_INFO, 0, s, |
891fb458 |
1275 | "mod_waklog: version %s initialized for cell %s", version, cfg->afs_cell); |
3f4fda20 |
1276 | |
1277 | if ( sharedspace ) { |
1278 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: shared memory already allocated." ); |
1279 | } else { |
1280 | |
1281 | snprintf( cache_file, MAXNAMELEN, "/tmp/waklog_cache.%d", getpid() ); |
1282 | |
1283 | if ( ( fd = open( cache_file, O_RDWR, 0600 ) ) == -1 ) { |
1284 | |
1285 | if ( errno == ENOENT ) { |
1286 | |
1287 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: creating shared token cache file %s", cache_file ); |
1288 | use_existing = 0; |
1289 | if ( ( fd = open( cache_file, O_RDWR|O_CREAT|O_TRUNC, 0600 ) ) == -1 ) { |
1290 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file, errno ); |
1291 | exit(errno); |
1292 | } |
1293 | } else { |
1294 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file, errno ); |
1295 | } |
1296 | } |
1297 | |
1298 | if ( use_existing == 0 ) { |
1299 | struct sharedspace_s bob; |
1300 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: sizing our cache file %d to %d", fd, sizeof(struct sharedspace_s) ); |
1301 | memset( &bob, 0, sizeof(struct sharedspace_s)); |
1302 | write(fd, &bob, sizeof(struct sharedspace_s)); |
1303 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s) ); |
1304 | } |
1305 | |
1306 | /* mmap the region */ |
1307 | |
1308 | if ( ( sharedspace = (struct sharedspace_s *) mmap ( NULL, sizeof(struct sharedspace_s), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0 ) ) != MAP_FAILED ) { |
1309 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared mmap region ok %d", sharedspace ); |
1310 | close(fd); |
1311 | } else { |
1312 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: mmap failed %d", errno ); |
1313 | exit(errno); |
1314 | } |
1315 | } |
4e1ae1cd |
1316 | |
3f4fda20 |
1317 | #ifdef use_pthreads |
1318 | #define locktype pthread_rwlock_t |
1319 | #else |
1320 | #define locktype rwlock_t |
1321 | #endif |
4e1ae1cd |
1322 | |
3f4fda20 |
1323 | if ( sharedlock = ( locktype * ) mmap ( NULL, sizeof(locktype), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0 ) ) { |
1324 | #ifndef use_pthreads |
1325 | rwlock_init(sharedlock, USYNC_PROCESS, NULL ); |
1326 | #else |
1327 | pthread_rwlockattr_init(&rwlock_attr); |
1328 | pthread_rwlockattr_setpshared(&rwlock_attr, PTHREAD_PROCESS_SHARED); |
1329 | pthread_rwlock_init(sharedlock, &rwlock_attr ); |
1330 | #endif |
1331 | } else { |
1332 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: rwlock mmap failed %d", errno ); |
1333 | } |
58bbdc54 |
1334 | |
3f4fda20 |
1335 | #undef locktype |
7193eb01 |
1336 | |
3f4fda20 |
1337 | /* set our default tokens */ |
403921ef |
1338 | |
3f4fda20 |
1339 | oldrenewcount = sharedspace->renewcount; |
7193eb01 |
1340 | |
3f4fda20 |
1341 | pag_for_children = 0; |
7193eb01 |
1342 | |
3f4fda20 |
1343 | proc = (apr_proc_t *) ap_pcalloc (s->process->pool, sizeof (apr_proc_t)); |
7193eb01 |
1344 | |
3f4fda20 |
1345 | rv = apr_proc_fork (proc, s->process->pool); |
7193eb01 |
1346 | |
3f4fda20 |
1347 | if (rv == APR_INCHILD) |
42d78dfb |
1348 | { |
1349 | waklog_child_routine (s, NULL); |
1350 | } |
3f4fda20 |
1351 | else |
42d78dfb |
1352 | { |
1353 | apr_pool_note_subprocess (s->process->pool, proc, APR_KILL_ALWAYS); |
1354 | } |
3f4fda20 |
1355 | /* parent and child */ |
1356 | cfg->forked = proc->pid; |
1357 | pag_for_children = 1; |
1358 | |
1359 | if ( use_existing == 0 ) { |
1360 | /* wait here until our child process has gone and done it's renewing thing. */ |
1361 | while( sharedspace->renewcount == oldrenewcount ) { |
1362 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: waiting for tokens..." ); |
1363 | sleep(2); |
1364 | } |
1365 | } |
1366 | |
1367 | if ( cfg->default_principal ) { |
1368 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1369 | } |
1370 | } |
1371 | return 0; |
1372 | } |
ebb1f61c |
1373 | #else |
3f4fda20 |
1374 | static void |
1375 | waklog_init (server_rec * s, MK_POOL * p) |
1376 | { |
1377 | extern char *version; |
1378 | int pid; |
1379 | waklog_config *cfg; |
3f4fda20 |
1380 | int fd = -1; |
1381 | int use_existing = 1; |
1382 | int oldrenewcount; |
1383 | char cache_file[MAXNAMELEN]; |
1384 | #ifdef use_pthreads |
1385 | pthread_rwlockattr_t rwlock_attr; |
ebb1f61c |
1386 | #endif |
7193eb01 |
1387 | |
3f4fda20 |
1388 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1389 | "mod_waklog: version %s initialized.", version); |
7193eb01 |
1390 | |
3f4fda20 |
1391 | if ( sharedspace ) { |
1392 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: shared memory already allocated." ); |
1393 | } else { |
1394 | |
1395 | snprintf( cache_file, MAXNAMELEN, "/tmp/waklog_cache.%d", getpid() ); |
1396 | |
1397 | if ( ( fd = open( cache_file, O_RDWR, 0600 ) ) == -1 ) { |
1398 | |
1399 | if ( errno == ENOENT ) { |
1400 | |
1401 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: creating shared token cache file %s", cache_file ); |
1402 | use_existing = 0; |
1403 | if ( ( fd = open( cache_file, O_RDWR|O_CREAT|O_TRUNC, 0600 ) ) == -1 ) { |
1404 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file, errno ); |
1405 | exit(errno); |
1406 | } |
1407 | } else { |
1408 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file, errno ); |
1409 | } |
1410 | |
1411 | } |
1412 | |
1413 | if ( use_existing == 0 ) { |
1414 | struct sharedspace_s bob; |
1415 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: sizing our cache file %d to %d", fd, sizeof(struct sharedspace_s) ); |
1416 | memset( &bob, 0, sizeof(struct sharedspace_s)); |
1417 | write(fd, &bob, sizeof(struct sharedspace_s)); |
1418 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s) ); |
1419 | } |
4e1ae1cd |
1420 | |
3f4fda20 |
1421 | /* mmap the region */ |
1422 | |
c760f0a1 |
1423 | if ( ( sharedspace = (struct sharedspace_s *) mmap ( NULL, sizeof(struct sharedspace_s), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0 ) ) != (void *) -1 ) { |
3f4fda20 |
1424 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared mmap region ok %d", sharedspace ); |
1425 | close(fd); |
1426 | } else { |
1427 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: mmap failed %d", errno ); |
1428 | exit(errno); |
1429 | } |
1430 | } |
e21f34f0 |
1431 | |
3f4fda20 |
1432 | #ifdef use_pthreads |
1433 | #define locktype pthread_rwlock_t |
1434 | #else |
1435 | #define locktype rwlock_t |
ea3e8708 |
1436 | #endif |
e21f34f0 |
1437 | |
3f4fda20 |
1438 | /* mmap our shared space for our lock */ |
c760f0a1 |
1439 | if ( ( sharedlock = ( locktype * ) mmap ( NULL, sizeof(locktype), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0 ) ) ) { |
3f4fda20 |
1440 | #ifndef use_pthreads |
1441 | rwlock_init(sharedlock, USYNC_PROCESS, NULL ); |
1442 | #else |
1443 | pthread_rwlockattr_init(&rwlock_attr); |
1444 | pthread_rwlockattr_setpshared(&rwlock_attr, PTHREAD_PROCESS_SHARED); |
1445 | pthread_rwlock_init(sharedlock, &rwlock_attr ); |
1446 | #endif |
1447 | } else { |
1448 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: rwlock mmap failed %d", errno ); |
1449 | } |
e21f34f0 |
1450 | |
3f4fda20 |
1451 | #undef locktype |
e21f34f0 |
1452 | |
3f4fda20 |
1453 | /* set our default tokens */ |
1454 | |
1455 | getModConfig (cfg, s); |
42d78dfb |
1456 | |
1457 | oldrenewcount = sharedspace->renewcount; |
1458 | |
1459 | pag_for_children = 0; |
1460 | |
1461 | pid = ap_bspawn_child (p, waklog_child_routine, s, kill_always, |
1462 | NULL, NULL, NULL); |
1463 | |
1464 | pag_for_children = 1; |
1465 | |
3f4fda20 |
1466 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1467 | "mod_waklog: ap_bspawn_child: %d.", pid); |
3f4fda20 |
1468 | |
1469 | if ( use_existing == 0 ) { |
1470 | /* wait here until our child process has gone and done it's renewing thing. */ |
1471 | while( sharedspace->renewcount == oldrenewcount ) { |
1472 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: waiting for tokens..." ); |
1473 | sleep(2); |
87822447 |
1474 | } |
3f4fda20 |
1475 | } |
1476 | |
1477 | if ( cfg->default_principal ) { |
1478 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1479 | } |
1480 | |
87822447 |
1481 | } |
3f4fda20 |
1482 | #endif |
1483 | |
1484 | static int |
1485 | waklog_phase0 (request_rec * r) |
e21f34f0 |
1486 | { |
3f4fda20 |
1487 | waklog_config *cfg; |
e21f34f0 |
1488 | |
3f4fda20 |
1489 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1490 | "mod_waklog: phase0 called"); |
3f4fda20 |
1491 | |
1492 | cfg = retrieve_config(r); |
e21f34f0 |
1493 | |
3f4fda20 |
1494 | if ( cfg->protect && cfg->principal ) { |
1495 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 using user %s", cfg->principal); |
1496 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1497 | } else if ( cfg->default_principal ) { |
1498 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 using default user %s", cfg->default_principal); |
1499 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1500 | } else { |
c760f0a1 |
1501 | |
1502 | if (child.token.ticketLen) { |
1503 | memset( &child.token, 0, sizeof (struct ktc_token) ); |
1504 | ktc_ForgetAllTokens(); |
1505 | } |
1506 | |
3f4fda20 |
1507 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 not doing nothin."); |
1508 | } |
e21f34f0 |
1509 | |
3f4fda20 |
1510 | return DECLINED; |
e21f34f0 |
1511 | } |
4e1ae1cd |
1512 | |
3f4fda20 |
1513 | static int |
1514 | waklog_phase1 (request_rec * r) |
bed98ff9 |
1515 | { |
3f4fda20 |
1516 | waklog_config *cfg; |
313dde40 |
1517 | |
3f4fda20 |
1518 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1519 | "mod_waklog: phase1 called"); |
7193eb01 |
1520 | |
3f4fda20 |
1521 | cfg = retrieve_config(r); |
313dde40 |
1522 | |
3f4fda20 |
1523 | if ( cfg->protect && cfg->principal ) { |
1524 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 using user %s", cfg->principal); |
1525 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1526 | } else if ( cfg->default_principal ) { |
1527 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 using default user %s", cfg->default_principal); |
1528 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1529 | } else { |
1530 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 not doing nothin."); |
1531 | } |
4e1ae1cd |
1532 | |
3f4fda20 |
1533 | return DECLINED; |
7193eb01 |
1534 | } |
4e1ae1cd |
1535 | |
3f4fda20 |
1536 | static int |
1537 | waklog_phase3 (request_rec * r) |
7193eb01 |
1538 | { |
3f4fda20 |
1539 | waklog_config *cfg; |
1e18ef7d |
1540 | |
3f4fda20 |
1541 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1542 | "mod_waklog: phase 3 called"); |
1e18ef7d |
1543 | |
3f4fda20 |
1544 | cfg = retrieve_config(r); |
1545 | |
1546 | if ( cfg->protect && cfg->principal ) { |
1547 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 using user %s", cfg->principal); |
1548 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1549 | } else if ( cfg->default_principal ) { |
1550 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 using default user %s", cfg->default_principal); |
1551 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1552 | } else { |
1553 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 not doing nothin."); |
1554 | } |
1555 | |
1556 | return DECLINED; |
1557 | } |
bed98ff9 |
1558 | |
3f4fda20 |
1559 | static int |
1560 | waklog_phase6 (request_rec * r) |
1561 | { |
1562 | waklog_config *cfg; |
1563 | |
1564 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1565 | "mod_waklog: phase6 called"); |
3f4fda20 |
1566 | |
1567 | cfg = retrieve_config(r); |
1568 | |
1569 | if ( cfg->protect && cfg->principal ) { |
1570 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 using user %s", cfg->principal); |
1571 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1572 | } else if ( cfg->default_principal ) { |
1573 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 using default user %s", cfg->default_principal); |
1574 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1575 | } else { |
1576 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 not doing nothin."); |
1577 | } |
1578 | |
1579 | return DECLINED; |
1580 | } |
bed98ff9 |
1581 | |
3f4fda20 |
1582 | static int |
1583 | waklog_phase7 (request_rec * r) |
1584 | { |
1585 | waklog_config *cfg; |
1586 | int rc = 0; |
1587 | |
1588 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1589 | "mod_waklog: phase7 called"); |
3f4fda20 |
1590 | |
1591 | cfg = retrieve_config (r); |
1592 | |
1593 | if ( cfg->protect && cfg->usertokens ) { |
1594 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using usertokens"); |
1595 | rc = set_auth( r->server, r, 1, NULL, NULL, 0); |
1596 | } else if ( cfg->protect && cfg->principal ) { |
1597 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using user %s", cfg->principal); |
1598 | rc = set_auth( r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1599 | } else if ( cfg->default_principal ) { |
1600 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using default user %s", cfg->default_principal); |
1601 | rc = set_auth( r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
d3bea354 |
1602 | } else { |
c760f0a1 |
1603 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: no tokens"); |
1604 | if (child.token.ticketLen) { |
1605 | memset(&child.token, 0, sizeof(struct ktc_token)); |
1606 | ktc_ForgetAllTokens(); |
1607 | } |
3f4fda20 |
1608 | } |
1609 | |
1610 | if ( rc ) { |
1611 | return 400; |
1612 | } |
1613 | |
1614 | return DECLINED; |
1615 | } |
87822447 |
1616 | |
3f4fda20 |
1617 | static int |
1618 | waklog_phase9 (request_rec * r) |
1619 | { |
1620 | waklog_config *cfg; |
bed98ff9 |
1621 | |
3f4fda20 |
1622 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1623 | "mod_waklog: phase9 called"); |
bed98ff9 |
1624 | |
3f4fda20 |
1625 | getModConfig (cfg, r->server); |
1626 | |
1627 | if ( cfg->default_principal ) { |
1628 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase9 using default user %s", cfg->default_principal); |
1629 | set_auth( r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1630 | } |
1631 | |
1632 | return DECLINED; |
bed98ff9 |
1633 | } |
1634 | |
ff47641b |
1635 | |
87822447 |
1636 | static |
c9d59a9c |
1637 | #ifdef APACHE2 |
ff47641b |
1638 | int |
87822447 |
1639 | #else |
ff47641b |
1640 | void |
87822447 |
1641 | #endif |
ff47641b |
1642 | waklog_new_connection (conn_rec * c |
c9d59a9c |
1643 | #ifdef APACHE2 |
42d78dfb |
1644 | , void *dummy |
87822447 |
1645 | #endif |
ff47641b |
1646 | ) |
1647 | { |
1648 | |
3f4fda20 |
1649 | waklog_config *cfg; |
ff47641b |
1650 | |
1651 | log_error (APLOG_MARK, APLOG_DEBUG, 0, c->base_server, |
42d78dfb |
1652 | "mod_waklog: new_connection called: pid: %d", getpid ()); |
1653 | |
1654 | getModConfig(cfg, c->base_server); |
1655 | |
1656 | if ( cfg->default_principal ) { |
1657 | log_error(APLOG_MARK, APLOG_DEBUG, 0, c->base_server, "mod_waklog: new conn setting default user %s", |
1658 | cfg->default_principal); |
1659 | set_auth( c->base_server, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1660 | } |
1661 | |
1662 | |
3f4fda20 |
1663 | return |
c9d59a9c |
1664 | #ifdef APACHE2 |
3f4fda20 |
1665 | 0 |
87822447 |
1666 | #endif |
3f4fda20 |
1667 | ; |
7193eb01 |
1668 | } |
bed98ff9 |
1669 | |
c4ad0387 |
1670 | |
1196adfe |
1671 | /* |
1672 | ** Here's a quick explaination for phase0 and phase2: |
1673 | ** Apache does a stat() on the path between phase0 and |
1674 | ** phase2, and must by ACLed rl to succeed. So, at |
1675 | ** phase0 we acquire credentials for umweb:servers from |
1676 | ** a keytab, and at phase2 we must ensure we remove them. |
1677 | ** |
1678 | ** Failure to "unlog" would be a security risk. |
1679 | */ |
ff47641b |
1680 | static int |
1681 | waklog_phase2 (request_rec * r) |
c4ad0387 |
1682 | { |
161ffd84 |
1683 | |
ff47641b |
1684 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1685 | "mod_waklog: phase2 called"); |
1196adfe |
1686 | |
ff47641b |
1687 | if (child.token.ticketLen) |
1688 | { |
1689 | memset (&child.token, 0, sizeof (struct ktc_token)); |
c4ad0387 |
1690 | |
ff47641b |
1691 | ktc_ForgetAllTokens (); |
c4ad0387 |
1692 | |
ff47641b |
1693 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1694 | "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", |
1695 | getpid ()); |
c4ad0387 |
1696 | } |
1196adfe |
1697 | |
ff47641b |
1698 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1699 | "mod_waklog: phase2 returning"); |
1196adfe |
1700 | |
3f4fda20 |
1701 | return DECLINED; |
c4ad0387 |
1702 | } |
1703 | |
c9d59a9c |
1704 | #ifndef APACHE2 |
313dde40 |
1705 | module MODULE_VAR_EXPORT waklog_module = { |
3f4fda20 |
1706 | STANDARD_MODULE_STUFF, |
866ccfbd |
1707 | waklog_init, /* module initializer */ |
42d78dfb |
1708 | waklog_create_dir_config, /* create per-dir config structures */ |
866ccfbd |
1709 | waklog_merge_dir_config, /* merge per-dir config structures */ |
1710 | waklog_create_server_config, /* create per-server config structures */ |
1711 | waklog_merge_dir_config, /* merge per-server config structures */ |
1712 | waklog_cmds, /* table of config file commands */ |
1713 | NULL, /* [#8] MIME-typed-dispatched handlers */ |
1714 | waklog_phase1, /* [#1] URI to filename translation */ |
1715 | NULL, /* [#4] validate user id from request */ |
1716 | NULL, /* [#5] check if the user is ok _here_ */ |
1717 | waklog_phase3, /* [#3] check access by host address */ |
1718 | waklog_phase6, /* [#6] determine MIME type */ |
1719 | waklog_phase7, /* [#7] pre-run fixups */ |
1720 | waklog_phase9, /* [#9] log a transaction */ |
c760f0a1 |
1721 | waklog_phase2, /* [#2] header parser */ |
866ccfbd |
1722 | waklog_child_init, /* child_init */ |
1723 | waklog_child_exit, /* child_exit */ |
1724 | waklog_phase0 /* [#0] post read-request */ |
bed98ff9 |
1725 | #ifdef EAPI |
866ccfbd |
1726 | , NULL, /* EAPI: add_module */ |
1727 | NULL, /* EAPI: remove_module */ |
1728 | NULL, /* EAPI: rewrite_command */ |
1729 | waklog_new_connection /* EAPI: new_connection */ |
bed98ff9 |
1730 | #endif |
1731 | }; |
87822447 |
1732 | #else |
1733 | static void |
ff47641b |
1734 | waklog_register_hooks (apr_pool_t * p) |
87822447 |
1735 | { |
3f4fda20 |
1736 | ap_hook_translate_name (waklog_phase1, NULL, NULL, APR_HOOK_FIRST); |
ff47641b |
1737 | ap_hook_header_parser (waklog_phase2, NULL, NULL, APR_HOOK_FIRST); |
3f4fda20 |
1738 | ap_hook_access_checker (waklog_phase3, NULL, NULL, APR_HOOK_FIRST); |
1739 | ap_hook_type_checker (waklog_phase6, NULL, NULL, APR_HOOK_FIRST); |
ff47641b |
1740 | ap_hook_fixups (waklog_phase7, NULL, NULL, APR_HOOK_FIRST); |
3f4fda20 |
1741 | ap_hook_log_transaction (waklog_phase9, NULL, NULL, APR_HOOK_FIRST); |
ff47641b |
1742 | ap_hook_child_init (waklog_child_init, NULL, NULL, APR_HOOK_FIRST); |
1743 | ap_hook_post_read_request (waklog_phase0, NULL, NULL, APR_HOOK_FIRST); |
1744 | ap_hook_pre_connection (waklog_new_connection, NULL, NULL, APR_HOOK_FIRST); |
1745 | ap_hook_post_config (waklog_init_handler, NULL, NULL, APR_HOOK_MIDDLE); |
87822447 |
1746 | } |
1747 | |
1748 | |
3f4fda20 |
1749 | module AP_MODULE_DECLARE_DATA waklog_module = { |
1750 | STANDARD20_MODULE_STUFF, |
42d78dfb |
1751 | waklog_create_dir_config, /* create per-dir conf structures */ |
1752 | waklog_merge_dir_config, /* merge per-dir conf structures */ |
1753 | waklog_create_server_config, /* create per-server conf structures */ |
1754 | waklog_merge_dir_config, /* merge per-server conf structures */ |
1755 | waklog_cmds, /* table of configuration directives */ |
1756 | waklog_register_hooks /* register hooks */ |
87822447 |
1757 | }; |
1758 | #endif |