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