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" |
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7 | #include "http_protocol.h" |
8 | #include "http_request.h" |
9 | #include "http_core.h" |
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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 | |
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27 | #ifndef 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 } |
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45 | |
46 | /********************* APACHE2 ******************************************************************************/ |
47 | #else |
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48 | #include <apr_strings.h> |
49 | #include <apr_base64.h> |
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50 | //#include <ap_compat.h> |
51 | #define ap_pcalloc apr_pcalloc |
52 | #define ap_pdupstr apr_pdupstr |
53 | #define ap_pstrdup apr_pstrdup |
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54 | |
55 | module AP_MODULE_DECLARE_DATA waklog_module; |
56 | |
57 | #define MK_POOL apr_pool_t |
58 | #define MK_TABLE_GET apr_table_get |
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59 | #define MK_TABLE_SET apr_table_set |
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60 | #include "unixd.h" |
61 | extern unixd_config_rec unixd_config; |
62 | #define ap_user_id unixd_config.user_id |
63 | #define ap_group_id unixd_config.group_id |
64 | #define ap_user_name unixd_config.user_name |
65 | #define command(name, func, var, type, usage) \ |
66 | AP_INIT_ ## type (name, (void*) func, \ |
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67 | NULL, \ |
68 | RSRC_CONF | ACCESS_CONF, usage) |
69 | typedef struct |
70 | { |
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71 | int dummy; |
877d453f |
72 | } |
73 | child_info; |
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74 | |
75 | const char *userdata_key = "waklog_init"; |
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76 | #endif /* APACHE2 */ |
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77 | /**************************************************************************************************/ |
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78 | |
79 | #include <krb5.h> |
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80 | #include <stropts.h> |
81 | #include <afs/venus.h> |
82 | #include <afs/auth.h> |
83 | #include <afs/dirpath.h> |
84 | #include <afs/ptuser.h> |
85 | #include <rx/rxkad.h> |
86 | |
87 | #define TKT_LIFE ( 12 * 60 * 60 ) |
42d78dfb |
88 | #define SLEEP_TIME ( TKT_LIFE - 5*60 ) |
877d453f |
89 | |
90 | #define WAKLOG_ON 1 |
91 | #define WAKLOG_OFF 2 |
92 | #define WAKLOG_UNSET 0 |
93 | |
94 | #ifdef WAKLOG_DEBUG |
95 | #undef APLOG_DEBUG |
96 | #define APLOG_DEBUG APLOG_ERR |
97 | #endif |
98 | |
99 | #ifndef CELL_IN_PRINCIPAL |
100 | int cell_in_principal = 1; |
101 | #else |
102 | int cell_in_principal = 0; |
103 | #endif |
104 | |
105 | /* this is used to turn off pag generation for the backround worker child during startup */ |
106 | int pag_for_children = 1; |
107 | |
108 | typedef struct |
109 | { |
110 | int forked; |
111 | int configured; |
112 | int protect; |
113 | int usertokens; |
114 | char *keytab; |
115 | char *principal; |
116 | char *default_principal; |
117 | char *default_keytab; |
118 | char *afs_cell; |
119 | char *path; |
120 | MK_POOL *p; |
121 | } |
122 | waklog_config; |
123 | |
124 | typedef struct |
125 | { |
126 | struct ktc_token token; |
127 | char clientprincipal[MAXNAMELEN]; |
128 | krb5_context kcontext; |
129 | krb5_ccache ccache; |
130 | struct ktc_principal server; |
131 | struct ktc_principal client; |
132 | int pr_init; |
133 | } waklog_child_config; |
134 | |
135 | waklog_child_config child; |
136 | |
137 | struct tokencache_ent { |
138 | char clientprincipal[MAXNAMELEN]; |
139 | struct ktc_token token; |
140 | struct ktc_principal client; |
141 | struct ktc_principal server; |
142 | time_t lastused; |
143 | int persist; |
144 | }; |
145 | |
146 | #define SHARED_TABLE_SIZE 512 |
147 | |
148 | struct sharedspace_s { |
149 | int renewcount; |
150 | struct tokencache_ent sharedtokens[SHARED_TABLE_SIZE]; |
151 | }; |
152 | |
153 | struct sharedspace_s *sharedspace = NULL; |
154 | |
155 | struct renew_ent { |
156 | char *keytab; |
157 | char *principal; |
158 | int lastrenewed; |
159 | }; |
160 | |
161 | #ifdef use_pthreads |
162 | pthread_rwlock_t *sharedlock = NULL; |
163 | #else |
164 | rwlock_t *sharedlock = NULL; |
165 | #endif |
166 | |
167 | struct renew_ent renewtable[SHARED_TABLE_SIZE]; |
168 | |
169 | int renewcount = 0; |
170 | |
87822447 |
171 | module waklog_module; |
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172 | |
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173 | |
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174 | #define getModConfig(P, X) P = (waklog_config *) ap_get_module_config( (X)->module_config, &waklog_module ); |
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175 | |
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176 | #include <krb5.h> |
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177 | |
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178 | #if defined(sun) |
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179 | #include <sys/ioccom.h> |
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180 | #endif /* sun */ |
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181 | #include <stropts.h> |
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182 | #include <afs/venus.h> |
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183 | #include <afs/auth.h> |
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184 | #include <afs/dirpath.h> |
185 | #include <afs/ptuser.h> |
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186 | #include <rx/rxkad.h> |
187 | |
87822447 |
188 | #define AFS_CELL "someplace.edu" |
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189 | |
87822447 |
190 | /* If there's an error, retry more aggressively */ |
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191 | #define ERR_SLEEP_TIME 5*60 |
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192 | |
58bbdc54 |
193 | |
42d78dfb |
194 | #define K5PATH "FILE:/tmp/waklog.creds.k5" |
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195 | |
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196 | static void |
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197 | log_error (const char *file, int line, int level, int status, |
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198 | const server_rec * s, const char *fmt, ...) |
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199 | { |
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200 | char errstr[4096]; |
201 | va_list ap; |
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202 | |
3f4fda20 |
203 | va_start (ap, fmt); |
204 | vsnprintf (errstr, 1024, fmt, ap); |
205 | va_end (ap); |
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206 | |
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207 | #ifdef APACHE2 |
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208 | ap_log_error (file, line, level | APLOG_NOERRNO, status, s, "(%d) %s", getpid(), errstr); |
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209 | #else |
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210 | ap_log_error (file, line, level | APLOG_NOERRNO, s, "(%d) %s", getpid(), errstr); |
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211 | #endif |
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212 | |
87822447 |
213 | } |
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214 | |
3f4fda20 |
215 | waklog_config *retrieve_config(request_rec *r) { |
216 | |
217 | request_rec *my; |
218 | waklog_config *cfg; |
219 | |
220 | if ( r && r->main ) { |
221 | my = r->main; |
222 | } else if (r) { |
223 | my = r; |
224 | } else { |
225 | return NULL; |
226 | } |
227 | |
228 | if ( my && ( cfg = (waklog_config *) ap_get_module_config(my->per_dir_config, &waklog_module ) ) ) { |
229 | return cfg; |
230 | } else { |
231 | getModConfig (cfg, r->server); |
232 | } |
233 | |
234 | return cfg; |
235 | |
236 | } |
313dde40 |
237 | |
3f4fda20 |
238 | /* set_auth -- sets the tokens of the current process to this user. |
239 | if "self" is set, it divines the user from the current requests' environment. |
240 | otherwise, it's gettng it from principal/keytab */ |
241 | |
242 | int |
243 | set_auth ( server_rec *s, request_rec *r, int self, char *principal, char *keytab, int storeonly ) { |
244 | |
245 | int i; |
246 | int usecached = 0; |
247 | krb5_error_code kerror = 0; |
248 | krb5_principal kprinc = NULL; |
249 | krb5_get_init_creds_opt kopts; |
250 | krb5_creds v5creds; |
251 | krb5_creds increds; |
252 | struct ktc_principal server = { "afs", "", "" }; |
253 | struct ktc_principal client; |
254 | struct ktc_token token; |
255 | krb5_creds *v5credsp = NULL; |
256 | krb5_keytab krb5kt = NULL; |
257 | char buf[MAXNAMELEN]; |
258 | waklog_config *cfg; |
259 | int rc = 0; |
260 | int buflen = 0; |
261 | time_t oldest_time = 0; |
262 | int oldest; |
263 | int stored = -1; |
264 | time_t mytime; |
265 | int indentical; |
266 | |
267 | char k5user[MAXNAMELEN]; |
268 | char *k5secret; |
269 | |
270 | memset((char *) &increds, 0, sizeof(increds)); |
271 | |
272 | /* init some stuff if it ain't already */ |
273 | |
274 | if ( ! child.kcontext ) { |
275 | kerror = krb5_init_context(&child.kcontext); |
276 | } |
277 | |
278 | if ( ( ! child.ccache ) && ( kerror = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) ) { |
279 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", kerror ); |
280 | } |
281 | |
282 | |
283 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth: %d, %s, %s, %d", self, principal ? principal : "NULL", |
284 | keytab ? keytab : "NULL", storeonly); |
285 | |
286 | /* pull the server config record that we care about... */ |
287 | |
288 | if ( r ) { |
289 | cfg = retrieve_config(r); |
290 | } else { |
291 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
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292 | "mod_waklog: set_auth using no config" ); |
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293 | getModConfig (cfg, s); |
294 | } |
295 | |
296 | if ( ! cfg ) { |
297 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: cfg is %d", cfg ); |
298 | } |
299 | |
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300 | #ifdef APACHE2 |
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301 | if ( self ) { |
302 | /* pull out our principal name and stuff from the environment -- webauth better have sent |
303 | through. This here is also where you'd suck stuff out of KRB5CCNAME if we were |
304 | using something like Cosign */ |
305 | |
306 | if ( ! ( r && r->connection && r->user )) { |
307 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: self authentication selected, but no data available"); |
308 | return -1; |
309 | } |
310 | |
311 | strncpy(k5user, r->user, sizeof(k5user)); |
312 | |
313 | /* the other thing we need is someone's password */ |
314 | if ( ! ( k5secret = (char *) MK_TABLE_GET( r->notes, "ATTR_PASSWORD" ) ) ) { |
315 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cant do self auth without a secret"); |
316 | return -1; |
317 | } |
318 | |
319 | /* we'll pick this up later after we've checked the cache and current state */ |
320 | |
321 | } else |
322 | #endif |
323 | if ( principal ) { |
324 | strncpy( k5user, principal, sizeof(k5user)); |
325 | } |
326 | |
327 | mytime = time(0); |
328 | |
329 | /* see if we should just go ahead and ignore this call, since we already should be set to these |
330 | credentials */ |
313dde40 |
331 | |
3f4fda20 |
332 | if ( ! storeonly ) { |
313dde40 |
333 | |
3f4fda20 |
334 | #ifdef use_pthreads |
335 | pthread_rwlock_rdlock( sharedlock ); |
336 | #else |
337 | rw_rdlock( sharedlock ); |
338 | #endif |
313dde40 |
339 | |
3f4fda20 |
340 | for ( i = 0; i < SHARED_TABLE_SIZE; ++i ) { |
341 | |
342 | /* if it's a token for the principal we're looking for, and it hasn't expired yet */ |
343 | |
344 | if ( ( !strcmp( k5user, |
345 | sharedspace->sharedtokens[i].clientprincipal ) ) && |
346 | ( sharedspace->sharedtokens[i].token.endTime > mytime ) ) { |
347 | |
348 | if ( ! memcmp(&child.token, &sharedspace->sharedtokens[i].token, sizeof(child.token) ) ) { |
349 | indentical = 1; |
350 | } else { |
351 | indentical = 0; |
352 | } |
353 | |
354 | /* copy the token out of the cache and into the child object */ |
355 | |
356 | strcpy(child.clientprincipal, sharedspace->sharedtokens[i].clientprincipal ); |
357 | memcpy(&child.token, &sharedspace->sharedtokens[i].token, sizeof(child.token)); |
358 | memcpy(&child.server, &sharedspace->sharedtokens[i].server, sizeof(child.server)); |
359 | memcpy(&child.client, &sharedspace->sharedtokens[i].client, sizeof(child.client)); |
360 | |
361 | /* set our last used time thing */ |
362 | sharedspace->sharedtokens[i].lastused = mytime; |
363 | |
364 | usecached = 1; |
365 | |
366 | break; |
367 | |
368 | } |
369 | |
370 | } |
371 | |
372 | /* release the lock on the token cache */ |
373 | #ifdef use_pthreads |
374 | pthread_rwlock_unlock( sharedlock ); |
375 | #else |
376 | rw_unlock( sharedlock ); |
377 | #endif |
313dde40 |
378 | |
3f4fda20 |
379 | if ( usecached ) { |
380 | /* release the lock on the token cache */ |
381 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, |
382 | "mod_waklog: set_auth using shared token %d for %s", i, k5user ); |
383 | |
384 | } |
385 | |
386 | /* if this is something that was in the cache, and it's the same as the token we already have stored, |
387 | and we weren't calling this just to renew it... */ |
388 | |
389 | if ( usecached && indentical ) { |
390 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: token is identical for %s", k5user ); |
391 | return 0; |
392 | } |
393 | |
394 | } |
395 | |
396 | /* if 'usecached' isn't set, we've got to get our tokens from somewhere... */ |
397 | |
398 | if (( ! usecached ) && ( k5user )) { |
313dde40 |
399 | |
3f4fda20 |
400 | /* clear out the creds structure */ |
401 | memset((void *) &v5creds, 0, sizeof(v5creds)); |
402 | |
403 | /* create a principal out of our k5user string */ |
404 | |
405 | if ( kerror = krb5_parse_name (child.kcontext, k5user, &kprinc ) ) { |
406 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_parse_name %s", (char *) error_message(kerror) ); |
407 | goto cleanup; |
408 | } |
409 | |
410 | /* create the credentials options */ |
411 | |
412 | krb5_get_init_creds_opt_init ( &kopts ); |
413 | krb5_get_init_creds_opt_set_tkt_life ( &kopts, TKT_LIFE ); |
414 | krb5_get_init_creds_opt_set_renew_life ( &kopts, 0 ); |
415 | krb5_get_init_creds_opt_set_forwardable ( &kopts, 0 ); |
416 | krb5_get_init_creds_opt_set_proxiable ( &kopts, 0 ); |
417 | |
418 | if ( keytab ) { |
419 | |
420 | /* if we've been passed a keytab, we're going to be getting our credentials from it */ |
421 | |
422 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: using keytab %s", keytab); |
423 | |
424 | if ( kerror = krb5_kt_resolve(child.kcontext, keytab, &krb5kt ) ) { |
425 | log_error( APLOG_MARK, APLOG_ERR, 0, s, |
426 | "mod_waklog: krb5_kt_resolve %s", error_message(kerror) ); |
427 | goto cleanup; |
428 | } |
429 | |
430 | if ((kerror = krb5_get_init_creds_keytab (child.kcontext, &v5creds, |
431 | kprinc, krb5kt, 0, NULL, &kopts ) ) ) { |
432 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_init_creds_keytab %s", |
433 | error_message(kerror) ); |
434 | goto cleanup; |
435 | } |
436 | |
437 | } else if ( self ) { |
438 | |
439 | /* if 'self' is set, we're going to use the credentials provided in the credential information */ |
440 | /* if you're using CoSign, you'd actually just set the ccache to the KRB5CCNAME credentials */ |
441 | /* and skip ahead... Our WebSSO is lame, but has a way for us to snarf the password out of */ |
442 | /* the encrypted token for proxy-authentication stuff. We only hand out keys that allow this */ |
443 | /* functionality to VERY special people. */ |
444 | |
445 | if ((kerror = krb5_get_init_creds_password ( child.kcontext, &v5creds, |
446 | kprinc, k5secret, NULL, NULL, 0, NULL, &kopts ) ) ) { |
447 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_init_creds_password %s", |
448 | error_message(kerror) ); |
449 | /* nuke the password so it doesn't end up in core files */ |
450 | memset(k5secret, 0, sizeof(k5secret)); |
451 | goto cleanup; |
452 | } |
453 | |
454 | memset(k5secret, 0, sizeof(k5secret)); |
455 | |
456 | } else { |
457 | |
458 | /* degenerate case -- we don't have enough information to do anything */ |
459 | |
460 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: no keytab, no self?"); |
461 | kerror = -1; |
462 | goto cleanup; |
463 | |
464 | } |
465 | |
466 | /* initialize the credentials cache and store the stuff we just got */ |
467 | |
468 | if ( kerror = krb5_cc_initialize (child.kcontext, child.ccache, kprinc)) { |
469 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: init credentials cache %s", |
470 | error_message(kerror)); |
471 | goto cleanup; |
472 | } |
473 | |
474 | if ( kerror = krb5_cc_store_cred(child.kcontext, child.ccache, &v5creds) ) { |
475 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot store credentials %s", |
476 | error_message(kerror)); |
477 | goto cleanup; |
478 | } |
479 | |
480 | krb5_free_cred_contents(child.kcontext, &v5creds); |
481 | |
482 | if ( kerror ) { |
483 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: store cred %s", error_message(kerror)); |
484 | goto cleanup; |
485 | } |
486 | |
487 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: kinit ok for %s", k5user ); |
488 | |
489 | /* now, to the 'aklog' portion of our program. */ |
490 | |
491 | strncpy( buf, "afs", sizeof(buf) - 1 ); |
492 | |
493 | if ( cfg->afs_cell && strcmp( cfg->afs_cell, AFS_CELL ) ) { |
494 | strncat(buf, "/", sizeof(buf) - strlen(buf) - 1); |
495 | strncat(buf, cfg->afs_cell, sizeof(buf) - strlen(buf) - 1); |
496 | } else if ( cell_in_principal ) { |
497 | strncat(buf, "/", sizeof(buf) - strlen(buf) - 1); |
498 | strncat(buf, AFS_CELL, sizeof(buf) - strlen(buf) - 1); |
499 | } |
313dde40 |
500 | |
3f4fda20 |
501 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: using AFS principal: %s", buf); |
502 | |
503 | if ((kerror = krb5_parse_name (child.kcontext, buf, &increds.server))) { |
504 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_parse name %s", error_message(kerror)); |
505 | goto cleanup; |
506 | } |
507 | |
508 | if ((kerror = krb5_cc_get_principal(child.kcontext, child.ccache, &increds.client))) { |
509 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_cc_get_princ %s", error_message(kerror)); |
510 | goto cleanup; |
511 | } |
512 | |
513 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: retrieved data from ccache for %s", k5user); |
514 | |
515 | increds.times.endtime = 0; |
516 | |
517 | increds.keyblock.enctype = ENCTYPE_DES_CBC_CRC; |
518 | |
519 | if (kerror = krb5_get_credentials (child.kcontext, 0, child.ccache, &increds, &v5credsp )) { |
520 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: krb5_get_credentials: %s", |
521 | error_message(kerror)); |
522 | goto cleanup; |
523 | } |
524 | |
525 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: get_credentials passed for %s", k5user); |
526 | |
527 | if ( v5credsp->ticket.length >= MAXKTCTICKETLEN ) { |
528 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: ticket size (%d) too big to fake", |
529 | v5credsp->ticket.length); |
530 | goto cleanup; |
531 | } |
313dde40 |
532 | |
3f4fda20 |
533 | memset(&token, 0, sizeof(struct ktc_token)); |
534 | |
535 | token.startTime = v5credsp->times.starttime ? v5credsp->times.starttime : v5credsp->times.authtime; |
536 | token.endTime = v5credsp->times.endtime; |
537 | |
538 | memmove( &token.sessionKey, v5credsp->keyblock.contents, v5credsp->keyblock.length); |
539 | token.kvno = RXKAD_TKT_TYPE_KERBEROS_V5; |
540 | token.ticketLen = v5credsp->ticket.length; |
541 | memmove( token.ticket, v5credsp->ticket.data, token.ticketLen); |
542 | |
543 | /* build the name */ |
544 | |
545 | memmove( buf, v5credsp->client->data[0].data, min(v5credsp->client->data[0].length, |
546 | MAXKTCNAMELEN -1 )); |
547 | buf[v5credsp->client->data[0].length] = '\0'; |
548 | if ( v5credsp->client->length > 1 ) { |
549 | strncat(buf, ".", sizeof(buf) - strlen(buf) - 1); |
550 | buflen = strlen(buf); |
551 | memmove(buf + buflen, v5credsp->client->data[1].data, |
552 | min(v5credsp->client->data[1].length, |
553 | MAXKTCNAMELEN - strlen(buf) - 1)); |
554 | buf[buflen + v5credsp->client->data[1].length] = '\0'; |
555 | } |
556 | |
557 | /* assemble the client */ |
558 | strncpy(client.name, buf, sizeof(client.name) - 1 ); |
559 | strncpy(client.instance, "", sizeof(client.instance) - 1 ); |
560 | memmove(buf, v5credsp->client->realm.data, min(v5credsp->client->realm.length, |
561 | MAXKTCNAMELEN - 1)); |
562 | buf[v5credsp->client->realm.length] = '\0'; |
563 | strncpy(client.cell, buf, sizeof(client.cell)); |
564 | |
565 | /* assemble the server's cell */ |
566 | if ( cfg->afs_cell ) { |
567 | strncpy(server.cell, cfg->afs_cell, sizeof(server.cell) - 1); |
568 | } else { |
569 | strncpy(server.cell, AFS_CELL, sizeof(server.cell) - 1); |
570 | } |
571 | |
572 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: preparing to init PTS connection for %s", server.cell); |
573 | |
574 | /* fill out the AFS ID in the client name */ |
575 | /* we've done a pr_Initialize in the child_init -- once, per process. If you try to do it more |
576 | * strange things seem to happen. */ |
577 | |
578 | { |
579 | afs_int32 viceId = 0; |
580 | |
581 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: making PTS call to look up %s", client.name); |
582 | |
583 | if ( ( rc = pr_SNameToId( client.name, &viceId ) ) == 0 ) { |
584 | snprintf( client.name, sizeof(client.name), "AFS ID %d", viceId ); |
585 | } else { |
586 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: PTS call returned error %d ", rc); |
587 | } |
588 | |
589 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: PTS call returned %s ", client.name); |
590 | |
591 | } |
592 | |
593 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: server: name %s, instance %s, cell %s", |
594 | server.name, server.instance, server.cell ); |
595 | |
596 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: client: name %s, instance %s, cell %s", |
597 | client.name, client.instance, client.cell ); |
598 | |
599 | /* copy the resulting stuff into the child structure */ |
600 | |
601 | strncpy(child.clientprincipal, k5user, sizeof(child.clientprincipal)); |
602 | memcpy(&child.token, &token, sizeof(child.token)); |
603 | memcpy(&child.server, &server, sizeof(child.server)); |
604 | memcpy(&child.client, &client, sizeof(child.client)); |
605 | |
606 | /* stuff the resulting token-related stuff into our shared token cache */ |
607 | /* note, that anything that was set from a keytab is "persistant", and is immune |
608 | * from LRU-aging. This is because nothing but the process that's running as root |
609 | * can update these, and it's running every hour or so and renewing these tokens. |
610 | * and we don't want them aged out. |
611 | */ |
612 | |
613 | mytime = oldest_time = time(0); |
614 | |
615 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: waiting for shared space for %s ", k5user); |
4e1ae1cd |
616 | |
3f4fda20 |
617 | #ifdef use_pthreads |
618 | pthread_rwlock_wrlock(sharedlock); |
619 | #else |
620 | rw_wrlock(sharedlock); |
621 | #endif |
4e1ae1cd |
622 | |
3f4fda20 |
623 | for( i = ( SHARED_TABLE_SIZE - 1 ); i >= 0; i-- ) { |
624 | if ( ( sharedspace->sharedtokens[i].lastused <= oldest_time) && |
625 | ( sharedspace->sharedtokens[i].persist == 0 ) ) { |
626 | oldest = i; |
627 | oldest_time = sharedspace->sharedtokens[i].lastused; |
628 | } |
629 | if ( ! strcmp ( sharedspace->sharedtokens[i].clientprincipal, |
630 | child.clientprincipal ) ) { |
631 | memcpy(&sharedspace->sharedtokens[i].token, &child.token, sizeof(child.token) ); |
632 | memcpy(&sharedspace->sharedtokens[i].client, &child.client, sizeof(child.client) ); |
633 | memcpy(&sharedspace->sharedtokens[i].server, &child.server, sizeof(child.server) ); |
634 | sharedspace->sharedtokens[i].lastused = mytime; |
635 | sharedspace->sharedtokens[i].persist = keytab ? 1 : 0; |
636 | stored = i; |
637 | break; |
638 | } |
639 | } |
640 | |
641 | if ( stored == -1 ) { |
642 | memcpy(&sharedspace->sharedtokens[oldest].token, &child.token, sizeof(child.token) ); |
643 | memcpy(&sharedspace->sharedtokens[oldest].client, &child.client, sizeof(child.client) ); |
644 | memcpy(&sharedspace->sharedtokens[oldest].server, &child.server, sizeof(child.server) ); |
645 | strcpy(sharedspace->sharedtokens[oldest].clientprincipal, child.clientprincipal ); |
646 | sharedspace->sharedtokens[oldest].lastused = mytime; |
647 | sharedspace->sharedtokens[oldest].persist = keytab ? 1 : 0; |
648 | stored = oldest; |
649 | } |
3ed1e28a |
650 | |
3f4fda20 |
651 | #ifdef use_pthreads |
652 | pthread_rwlock_unlock(sharedlock); |
653 | #else |
654 | rw_unlock(sharedlock); |
655 | #endif |
656 | |
657 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: token stored in slot %d for %s", stored, |
658 | child.clientprincipal ); |
659 | |
660 | } else if ( ! usecached ) { |
661 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth divergent case"); |
662 | } |
663 | |
664 | if ( storeonly ) { |
665 | goto cleanup; |
666 | } |
667 | |
668 | usecachedtoken: |
669 | |
670 | /* don't ask. Something about AIX. We're leaving it here.*/ |
671 | /* write(2, "", 0); */ |
672 | |
673 | /* we try twice, because sometimes the first one fails. Dunno why, but it always works the second time */ |
674 | |
675 | if ((rc = ktc_SetToken(&child.server, &child.token, &child.client, 0))) { |
676 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: settoken returned %s for %s -- trying again", |
677 | error_message(rc), k5user); |
678 | if ((rc = ktc_SetToken(&child.server, &child.token, &child.client, 0))) { |
679 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: settoken2 returned %s for %s", |
680 | error_message(rc), k5user); |
681 | goto cleanup; |
682 | } |
683 | } |
684 | |
685 | cleanup: |
686 | if ( v5credsp ) |
687 | krb5_free_cred_contents(child.kcontext, v5credsp); |
688 | if ( increds.client ) |
689 | krb5_free_principal (child.kcontext, increds.client); |
690 | if ( increds.server ) |
691 | krb5_free_principal (child.kcontext, increds.server); |
692 | if ( krb5kt ) |
693 | (void) krb5_kt_close(child.kcontext, krb5kt); |
694 | if ( kprinc ) |
695 | krb5_free_principal (child.kcontext, kprinc); |
696 | |
697 | if ( rc ) { |
698 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth ending with %d", rc ); |
699 | } else if ( kerror ) { |
700 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: set_auth ending with krb5 error %d, %s", kerror, error_message(kerror)); |
701 | } else { |
702 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: set_auth ending ok"); |
703 | } |
704 | |
705 | return kerror ? (int) kerror : (int) rc; |
706 | |
4e1ae1cd |
707 | } |
708 | |
709 | |
7193eb01 |
710 | |
3f4fda20 |
711 | static void * |
712 | waklog_create_server_config (MK_POOL * p, server_rec * s) |
713 | { |
714 | waklog_config *cfg; |
715 | |
716 | cfg = (waklog_config *) ap_pcalloc (p, sizeof (waklog_config)); |
717 | cfg->p = p; |
718 | memset(cfg, 0, sizeof(waklog_config)); |
719 | cfg->path = "(server)"; |
720 | cfg->protect = WAKLOG_UNSET; |
721 | cfg->usertokens = WAKLOG_UNSET; |
722 | cfg->keytab = WAKLOG_UNSET; |
723 | cfg->principal = WAKLOG_UNSET; |
724 | cfg->default_principal = WAKLOG_UNSET; |
725 | cfg->default_keytab = WAKLOG_UNSET; |
726 | cfg->afs_cell = WAKLOG_UNSET; |
727 | cfg->forked = 0; |
728 | cfg->configured = 0; |
729 | |
730 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
731 | "mod_waklog: server config created."); |
3f4fda20 |
732 | |
733 | return (cfg); |
734 | } |
7193eb01 |
735 | |
3f4fda20 |
736 | /* initialize with host-config information */ |
58bbdc54 |
737 | |
3f4fda20 |
738 | static void * |
739 | waklog_create_dir_config (MK_POOL * p, char *dir) |
740 | { |
741 | waklog_config *cfg; |
742 | |
743 | cfg = (waklog_config *) ap_pcalloc (p, sizeof (waklog_config)); |
744 | memset(cfg, 0, sizeof(waklog_config)); |
745 | cfg->p = p; |
746 | cfg->path = ap_pstrdup(p, dir ); |
747 | cfg->protect = WAKLOG_UNSET; |
748 | cfg->usertokens = WAKLOG_UNSET; |
749 | cfg->keytab = WAKLOG_UNSET; |
750 | cfg->principal = WAKLOG_UNSET; |
751 | cfg->default_principal = WAKLOG_UNSET; |
752 | cfg->default_keytab = WAKLOG_UNSET; |
753 | cfg->afs_cell = WAKLOG_UNSET; |
754 | cfg->forked = 0; |
755 | cfg->configured = 0; |
756 | |
757 | return (cfg); |
58bbdc54 |
758 | } |
759 | |
3f4fda20 |
760 | static void *waklog_merge_dir_config(MK_POOL *p, void *parent_conf, void *newloc_conf) { |
58bbdc54 |
761 | |
3f4fda20 |
762 | waklog_config *merged = ( waklog_config * ) ap_pcalloc(p, sizeof(waklog_config ) ); |
763 | waklog_config *parent = ( waklog_config * ) parent_conf; |
764 | waklog_config *child = ( waklog_config * ) newloc_conf; |
765 | |
766 | merged->protect = child->protect != WAKLOG_UNSET ? child->protect : parent->protect; |
767 | |
768 | merged->path = child->path != WAKLOG_UNSET ? child->path : parent->path; |
769 | |
770 | merged->usertokens = child->usertokens != WAKLOG_UNSET ? child->usertokens : parent->usertokens; |
771 | |
772 | merged->principal = child->principal != WAKLOG_UNSET ? child->principal : parent->principal; |
773 | |
774 | merged->keytab = child->keytab != WAKLOG_UNSET ? child->keytab : parent->keytab; |
775 | |
776 | merged->default_keytab = child->default_keytab != WAKLOG_UNSET ? child->default_keytab : parent->default_keytab; |
777 | |
778 | merged->default_principal = child->default_principal != WAKLOG_UNSET ? child->default_principal : parent->default_principal; |
779 | |
780 | merged->afs_cell = child->afs_cell != WAKLOG_UNSET ? child->afs_cell : parent->afs_cell; |
781 | |
782 | return (void *) merged; |
783 | |
784 | } |
58bbdc54 |
785 | |
3f4fda20 |
786 | static void *waklog_merge_server_config(MK_POOL *p, void *parent_conf, void *newloc_conf) { |
58bbdc54 |
787 | |
3f4fda20 |
788 | waklog_config *merged = ( waklog_config * ) ap_pcalloc(p, sizeof(waklog_config ) ); |
789 | waklog_config *pconf = ( waklog_config * ) parent_conf; |
790 | waklog_config *nconf = ( waklog_config * ) newloc_conf; |
791 | |
792 | merged->protect = nconf->protect == WAKLOG_UNSET ? pconf->protect : nconf->protect; |
58bbdc54 |
793 | |
3f4fda20 |
794 | merged->usertokens = nconf->usertokens == WAKLOG_UNSET ? pconf->usertokens : nconf->usertokens; |
58bbdc54 |
795 | |
3f4fda20 |
796 | merged->keytab = nconf->keytab == WAKLOG_UNSET ? ap_pstrdup(p, pconf->keytab) : |
797 | ( nconf->keytab == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->keytab) ); |
798 | |
799 | merged->principal = nconf->principal == WAKLOG_UNSET ? ap_pstrdup(p, pconf->principal) : |
800 | ( nconf->principal == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->principal) ); |
801 | |
802 | merged->afs_cell = nconf->afs_cell == WAKLOG_UNSET ? ap_pstrdup(p, pconf->afs_cell) : |
803 | ( nconf->afs_cell == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->afs_cell) ); |
804 | |
805 | merged->default_keytab = nconf->default_keytab == WAKLOG_UNSET ? ap_pstrdup(p, pconf->default_keytab) : |
806 | ( nconf->default_keytab == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->default_keytab) ); |
58bbdc54 |
807 | |
3f4fda20 |
808 | merged->default_principal = nconf->default_principal == WAKLOG_UNSET ? ap_pstrdup(p, pconf->default_principal) : |
809 | ( nconf->default_principal == WAKLOG_UNSET ? WAKLOG_UNSET : ap_pstrdup(p, pconf->default_principal) ); |
810 | |
811 | |
812 | return (void *) merged; |
813 | |
814 | } |
815 | |
816 | static const char * |
817 | set_waklog_protect (cmd_parms * params, void *mconfig, int flag) |
58bbdc54 |
818 | { |
3f4fda20 |
819 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
820 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
821 | |
822 | cfg->protect = flag; |
823 | cfg->configured = 1; |
824 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
825 | "mod_waklog: waklog_protect set on %s", cfg->path ? cfg->path : "NULL"); |
3f4fda20 |
826 | return (NULL); |
827 | } |
58bbdc54 |
828 | |
7193eb01 |
829 | |
3f4fda20 |
830 | /* this adds a principal/keytab pair to get their tokens renewed by the |
831 | child process every few centons. */ |
7193eb01 |
832 | |
3f4fda20 |
833 | void add_to_renewtable(MK_POOL *p, char *keytab, char *principal) { |
87822447 |
834 | |
3f4fda20 |
835 | int i; |
836 | |
837 | if ( renewcount >= SHARED_TABLE_SIZE ) { |
838 | log_error(APLOG_MARK, APLOG_DEBUG, 0, NULL, "mod_waklog: big problem. Increase the SHARED_TABLE_SIZE or \ |
839 | decrease your tokens."); |
b74fad73 |
840 | return; |
3f4fda20 |
841 | } |
842 | |
843 | /* check to see if it's already there */ |
844 | |
845 | for ( i = 0; i < renewcount; i++ ) { |
846 | if ( ! strcmp(renewtable[i].principal, principal ) ) { |
847 | return; |
848 | } |
849 | } |
850 | |
851 | renewtable[renewcount].keytab = ap_pstrdup(p, keytab); |
852 | renewtable[renewcount].principal = ap_pstrdup(p, principal); |
853 | renewtable[renewcount].lastrenewed = 0; |
854 | ++renewcount; |
855 | |
b74fad73 |
856 | } |
857 | |
3f4fda20 |
858 | static const char * |
859 | set_waklog_principal (cmd_parms *params, void *mconfig, char *principal, char *keytab) |
860 | { |
861 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
862 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
863 | |
864 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
865 | "mod_waklog: configuring principal: %s, keytab: %s", principal, keytab); |
866 | |
867 | cfg->principal = ap_pstrdup(params->pool, principal); |
3f4fda20 |
868 | cfg->keytab = ap_pstrdup (params->pool, keytab); |
869 | |
870 | add_to_renewtable(params->pool, keytab, principal); |
871 | |
872 | cfg->configured = 1; |
873 | |
874 | return (NULL); |
875 | } |
b74fad73 |
876 | |
3f4fda20 |
877 | static const char * |
878 | set_waklog_use_afs_cell (cmd_parms * params, void *mconfig, char *file) |
313dde40 |
879 | { |
3f4fda20 |
880 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
881 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
882 | |
883 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
884 | "mod_waklog: will use afs_cell: %s", file); |
313dde40 |
885 | |
3f4fda20 |
886 | cfg->afs_cell = ap_pstrdup (params->pool, file); |
887 | cfg->configured = 1; |
888 | return (NULL); |
889 | } |
58bbdc54 |
890 | |
3f4fda20 |
891 | static const char * |
892 | set_waklog_default_principal (cmd_parms * params, void *mconfig, char *principal, char *keytab) |
893 | { |
894 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
895 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
58bbdc54 |
896 | |
3f4fda20 |
897 | waklog_config *srvcfg = ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
4e1ae1cd |
898 | |
3f4fda20 |
899 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
900 | "mod_waklog: set default princ/keytab: %s, %s for %s", principal, keytab, cfg->path ? cfg->path : "NULL"); |
313dde40 |
901 | |
3f4fda20 |
902 | cfg->default_principal = ap_pstrdup (params->pool, principal); |
903 | cfg->default_keytab = ap_pstrdup(params->pool, keytab ); |
904 | |
905 | /* this also gets set at the server level */ |
906 | if ( mconfig && ( ! cfg->path ) ) { |
907 | srvcfg->default_principal = ap_pstrdup (params->pool, principal); |
908 | srvcfg->default_keytab = ap_pstrdup(params->pool, keytab ); |
909 | } else { |
910 | log_error(APLOG_MARK, APLOG_ERR, 0, params->server, "only able to set default principal on a global level!"); |
911 | return "Unable to set DefaultPrincipal outside of top level config!"; |
912 | } |
913 | |
914 | add_to_renewtable( params->pool, keytab, principal ); |
915 | |
916 | cfg->configured = 1; |
917 | |
918 | return (NULL); |
919 | } |
313dde40 |
920 | |
3f4fda20 |
921 | static const char * |
922 | set_waklog_use_usertokens (cmd_parms * params, void *mconfig, int flag) |
bed98ff9 |
923 | { |
3f4fda20 |
924 | waklog_config *cfg = mconfig ? ( waklog_config * ) mconfig : |
925 | ( waklog_config * ) ap_get_module_config(params->server->module_config, &waklog_module ); |
bed98ff9 |
926 | |
3f4fda20 |
927 | cfg->usertokens = flag; |
bed98ff9 |
928 | |
3f4fda20 |
929 | cfg->configured = 1; |
bed98ff9 |
930 | |
3f4fda20 |
931 | log_error (APLOG_MARK, APLOG_DEBUG, 0, params->server, |
42d78dfb |
932 | "mod_waklog: waklog_use_user_tokens set"); |
3f4fda20 |
933 | return (NULL); |
bed98ff9 |
934 | } |
935 | |
936 | |
c9d59a9c |
937 | #ifndef APACHE2 |
3f4fda20 |
938 | static void waklog_child_exit( server_rec *s, MK_POOL *p ) { |
939 | #else |
940 | apr_status_t waklog_child_exit( void *sr ) { |
4e1ae1cd |
941 | |
3f4fda20 |
942 | server_rec *s = (server_rec *) sr; |
943 | #endif |
944 | |
945 | if ( child.ccache ) { |
946 | krb5_cc_close(child.kcontext, child.ccache); |
947 | } |
948 | |
949 | if ( child.kcontext ) { |
950 | krb5_free_context(child.kcontext); |
951 | } |
952 | |
953 | /* forget our tokens */ |
954 | |
955 | ktc_ForgetAllTokens (); |
956 | |
957 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
958 | "mod_waklog: waklog_child_exit complete"); |
4e1ae1cd |
959 | |
c9d59a9c |
960 | #ifdef APACHE2 |
3f4fda20 |
961 | return APR_SUCCESS; |
962 | #endif |
963 | |
964 | } |
4e1ae1cd |
965 | |
3f4fda20 |
966 | static void |
c9d59a9c |
967 | #ifdef APACHE2 |
3f4fda20 |
968 | waklog_child_init (MK_POOL * p, server_rec * s) |
969 | #else |
970 | waklog_child_init (server_rec * s, MK_POOL * p) |
971 | #endif |
972 | { |
b52ccbb1 |
973 | |
3f4fda20 |
974 | krb5_error_code code; |
975 | waklog_config *cfg; |
976 | |
977 | char *cell; |
978 | |
979 | cell = strdup(AFS_CELL); |
980 | |
981 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init called for pid %d", getpid()); |
982 | |
983 | if ( !sharedspace ) { |
984 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: child_init called without shared space? %d", getpid()); |
985 | return; |
986 | } |
987 | |
988 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init called for pid %d", getpid()); |
7193eb01 |
989 | |
3f4fda20 |
990 | memset (&child, 0, sizeof(child)); |
991 | |
992 | if ( code = krb5_init_context(&child.kcontext) ) { |
993 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't init kerberos context %d", code ); |
994 | } |
995 | |
996 | if ( code = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) { |
997 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", code ); |
998 | } |
999 | |
1000 | if ( pag_for_children ) { |
1001 | setpag (); |
1002 | } |
7193eb01 |
1003 | |
3f4fda20 |
1004 | getModConfig (cfg, s); |
7193eb01 |
1005 | |
3f4fda20 |
1006 | if ( cfg->default_principal != WAKLOG_UNSET ) { |
1007 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: child_init setting default user %s, %s", cfg->default_principal, cfg->default_keytab); |
1008 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1009 | } |
7193eb01 |
1010 | |
3f4fda20 |
1011 | pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR, cell ); |
7193eb01 |
1012 | |
c9d59a9c |
1013 | #ifdef APACHE2 |
3f4fda20 |
1014 | apr_pool_cleanup_register(p, s, waklog_child_exit, apr_pool_cleanup_null); |
1015 | #endif |
7193eb01 |
1016 | |
3f4fda20 |
1017 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1018 | "mod_waklog: child_init returned"); |
7193eb01 |
1019 | |
3f4fda20 |
1020 | return; |
1021 | } |
b52ccbb1 |
1022 | |
3f4fda20 |
1023 | command_rec waklog_cmds[] = { |
1024 | |
1025 | command ("WaklogProtected", set_waklog_protect, 0, FLAG, |
42d78dfb |
1026 | "enable waklog on a location or directory basis"), |
7193eb01 |
1027 | |
3f4fda20 |
1028 | command ("WaklogPrincipal", set_waklog_principal, 0, TAKE2, |
42d78dfb |
1029 | "Use the supplied keytab rather than the default"), |
7193eb01 |
1030 | |
3f4fda20 |
1031 | command ("WaklogUseAFSCell", set_waklog_use_afs_cell, 0, TAKE1, |
42d78dfb |
1032 | "Use the supplied AFS cell rather than the default"), |
7193eb01 |
1033 | |
3f4fda20 |
1034 | command ("WaklogUseUserTokens", set_waklog_use_usertokens, 0, FLAG, |
1035 | "Use the requesting user tokens (from webauth)"), |
7193eb01 |
1036 | |
3f4fda20 |
1037 | command ("WaklogDefaultPrincipal", set_waklog_default_principal, 0, TAKE2, |
1038 | "Set the default principal that the server runs as"), |
1039 | |
1040 | {NULL} |
1041 | }; |
7193eb01 |
1042 | |
7193eb01 |
1043 | |
3f4fda20 |
1044 | /* not currently using this */ |
7193eb01 |
1045 | |
3f4fda20 |
1046 | static int |
1047 | token_cleanup (void *data) |
1048 | { |
1049 | request_rec *r = (request_rec *) data; |
e2df6441 |
1050 | |
3f4fda20 |
1051 | if (child.token.ticketLen) |
1052 | { |
1053 | memset (&child.token, 0, sizeof (struct ktc_token)); |
e21f34f0 |
1054 | |
3f4fda20 |
1055 | ktc_ForgetAllTokens (); |
7193eb01 |
1056 | |
3f4fda20 |
1057 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1058 | "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", |
1059 | getpid ()); |
3f4fda20 |
1060 | } |
1061 | return 0; |
7193eb01 |
1062 | } |
1063 | |
3f4fda20 |
1064 | static int |
1065 | waklog_child_routine (void *data, child_info * pinfo) |
7193eb01 |
1066 | { |
3f4fda20 |
1067 | int i; |
1068 | server_rec *s = (server_rec *) data; |
1069 | krb5_error_code code; |
1070 | char *cell; |
1071 | time_t sleep_time = ( TKT_LIFE / 2 ) ; |
1072 | time_t when; |
1073 | time_t left; |
1074 | waklog_config *cfg; |
1075 | |
1076 | getModConfig( cfg, s ); |
1077 | |
1078 | log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: waklog_child_routine started, running as %d", getuid()); |
1079 | |
1080 | memset (&child, 0, sizeof(child)); |
1081 | |
1082 | if ( code = krb5_init_context(&child.kcontext) ) { |
1083 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't init kerberos context %d", code ); |
1084 | } |
1085 | |
1086 | if ( code = krb5_cc_resolve(child.kcontext, "MEMORY:tmpcache", &child.ccache) ) { |
1087 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: can't initialize in-memory credentials cache %d", code ); |
1088 | } |
1089 | |
1090 | /* need to do this so we can make PTS calls */ |
1091 | cell = strdup(AFS_CELL); /* stupid */ |
1092 | pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR, cell ); |
1093 | |
1094 | while(1) { |
1095 | |
1096 | for ( i = 0; i < renewcount; ++i ) { |
1097 | renewtable[i].lastrenewed = time(0); |
1098 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: (pid %d) renewing %s / %s", getpid(), renewtable[i].principal, |
1099 | renewtable[i].keytab); |
1100 | |
1101 | set_auth( s, NULL, 0, renewtable[i].principal, renewtable[i].keytab, 1 ); |
1102 | |
1103 | /* if this is our default token, we want to "stash" it in our current PAG so the parent maintains readability of |
1104 | things that it needs to read */ |
1105 | |
1106 | if ( cfg && cfg->default_principal && ( ! strcmp(cfg->default_principal, renewtable[i].principal ) ) ) { |
1107 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: renewing/setting default tokens" ); |
1108 | set_auth( s, NULL, 0, renewtable[i].principal, renewtable[i].keytab, 0 ); |
1109 | } |
1110 | |
4e1ae1cd |
1111 | } |
1112 | |
3f4fda20 |
1113 | sharedspace->renewcount++; |
1114 | |
1115 | left = sleep_time; |
1116 | |
1117 | while( left > 5 ) { |
1118 | when = time(0); |
1119 | |
1120 | sleep(left); |
1121 | |
1122 | left -= ( time(0) - when ); |
4e1ae1cd |
1123 | } |
3f4fda20 |
1124 | |
1125 | } |
4e1ae1cd |
1126 | |
3f4fda20 |
1127 | pr_End(); |
403921ef |
1128 | |
3f4fda20 |
1129 | } |
4e1ae1cd |
1130 | |
c9d59a9c |
1131 | #ifdef APACHE2 |
3f4fda20 |
1132 | static int |
1133 | waklog_init_handler (apr_pool_t * p, apr_pool_t * plog, |
42d78dfb |
1134 | apr_pool_t * ptemp, server_rec * s) |
3f4fda20 |
1135 | { |
1136 | int rv; |
1137 | extern char *version; |
1138 | apr_proc_t *proc; |
1139 | waklog_config *cfg; |
1140 | void *data; |
1141 | int fd = -1; |
1142 | int use_existing = 1; |
1143 | int oldrenewcount; |
1144 | char cache_file[MAXNAMELEN]; |
1145 | #ifdef use_pthreads |
1146 | pthread_rwlockattr_t rwlock_attr; |
1147 | #endif |
4e1ae1cd |
1148 | |
1149 | |
3f4fda20 |
1150 | getModConfig (cfg, s); |
4e1ae1cd |
1151 | |
3f4fda20 |
1152 | /* initialize_module() will be called twice, and if it's a DSO |
1153 | * then all static data from the first call will be lost. Only |
1154 | * set up our static data on the second call. |
1155 | * see http://issues.apache.org/bugzilla/show_bug.cgi?id=37519 */ |
1156 | apr_pool_userdata_get (&data, userdata_key, s->process->pool); |
7193eb01 |
1157 | |
3f4fda20 |
1158 | if (!data) |
1159 | { |
1160 | apr_pool_userdata_set ((const void *) 1, userdata_key, |
42d78dfb |
1161 | apr_pool_cleanup_null, s->process->pool); |
4e1ae1cd |
1162 | } |
3f4fda20 |
1163 | else |
1164 | { |
1165 | log_error (APLOG_MARK, APLOG_INFO, 0, s, |
42d78dfb |
1166 | "mod_waklog: version %s initialized.", version); |
3f4fda20 |
1167 | |
1168 | if ( sharedspace ) { |
1169 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: shared memory already allocated." ); |
1170 | } else { |
1171 | |
1172 | snprintf( cache_file, MAXNAMELEN, "/tmp/waklog_cache.%d", getpid() ); |
1173 | |
1174 | if ( ( fd = open( cache_file, O_RDWR, 0600 ) ) == -1 ) { |
1175 | |
1176 | if ( errno == ENOENT ) { |
1177 | |
1178 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: creating shared token cache file %s", cache_file ); |
1179 | use_existing = 0; |
1180 | if ( ( fd = open( cache_file, O_RDWR|O_CREAT|O_TRUNC, 0600 ) ) == -1 ) { |
1181 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file, errno ); |
1182 | exit(errno); |
1183 | } |
1184 | } else { |
1185 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file, errno ); |
1186 | } |
1187 | } |
1188 | |
1189 | if ( use_existing == 0 ) { |
1190 | struct sharedspace_s bob; |
1191 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: sizing our cache file %d to %d", fd, sizeof(struct sharedspace_s) ); |
1192 | memset( &bob, 0, sizeof(struct sharedspace_s)); |
1193 | write(fd, &bob, sizeof(struct sharedspace_s)); |
1194 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s) ); |
1195 | } |
1196 | |
1197 | /* mmap the region */ |
1198 | |
1199 | if ( ( sharedspace = (struct sharedspace_s *) mmap ( NULL, sizeof(struct sharedspace_s), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0 ) ) != MAP_FAILED ) { |
1200 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared mmap region ok %d", sharedspace ); |
1201 | close(fd); |
1202 | } else { |
1203 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: mmap failed %d", errno ); |
1204 | exit(errno); |
1205 | } |
1206 | } |
4e1ae1cd |
1207 | |
3f4fda20 |
1208 | #ifdef use_pthreads |
1209 | #define locktype pthread_rwlock_t |
1210 | #else |
1211 | #define locktype rwlock_t |
1212 | #endif |
4e1ae1cd |
1213 | |
3f4fda20 |
1214 | if ( sharedlock = ( locktype * ) mmap ( NULL, sizeof(locktype), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0 ) ) { |
1215 | #ifndef use_pthreads |
1216 | rwlock_init(sharedlock, USYNC_PROCESS, NULL ); |
1217 | #else |
1218 | pthread_rwlockattr_init(&rwlock_attr); |
1219 | pthread_rwlockattr_setpshared(&rwlock_attr, PTHREAD_PROCESS_SHARED); |
1220 | pthread_rwlock_init(sharedlock, &rwlock_attr ); |
1221 | #endif |
1222 | } else { |
1223 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: rwlock mmap failed %d", errno ); |
1224 | } |
58bbdc54 |
1225 | |
3f4fda20 |
1226 | #undef locktype |
7193eb01 |
1227 | |
3f4fda20 |
1228 | /* set our default tokens */ |
403921ef |
1229 | |
3f4fda20 |
1230 | oldrenewcount = sharedspace->renewcount; |
7193eb01 |
1231 | |
3f4fda20 |
1232 | pag_for_children = 0; |
7193eb01 |
1233 | |
3f4fda20 |
1234 | proc = (apr_proc_t *) ap_pcalloc (s->process->pool, sizeof (apr_proc_t)); |
7193eb01 |
1235 | |
3f4fda20 |
1236 | rv = apr_proc_fork (proc, s->process->pool); |
7193eb01 |
1237 | |
3f4fda20 |
1238 | if (rv == APR_INCHILD) |
42d78dfb |
1239 | { |
1240 | waklog_child_routine (s, NULL); |
1241 | } |
3f4fda20 |
1242 | else |
42d78dfb |
1243 | { |
1244 | apr_pool_note_subprocess (s->process->pool, proc, APR_KILL_ALWAYS); |
1245 | } |
3f4fda20 |
1246 | /* parent and child */ |
1247 | cfg->forked = proc->pid; |
1248 | pag_for_children = 1; |
1249 | |
1250 | if ( use_existing == 0 ) { |
1251 | /* wait here until our child process has gone and done it's renewing thing. */ |
1252 | while( sharedspace->renewcount == oldrenewcount ) { |
1253 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: waiting for tokens..." ); |
1254 | sleep(2); |
1255 | } |
1256 | } |
1257 | |
1258 | if ( cfg->default_principal ) { |
1259 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1260 | } |
1261 | } |
1262 | return 0; |
1263 | } |
ebb1f61c |
1264 | #else |
3f4fda20 |
1265 | static void |
1266 | waklog_init (server_rec * s, MK_POOL * p) |
1267 | { |
1268 | extern char *version; |
1269 | int pid; |
1270 | waklog_config *cfg; |
1271 | char *cell; |
1272 | int fd = -1; |
1273 | int use_existing = 1; |
1274 | int oldrenewcount; |
1275 | char cache_file[MAXNAMELEN]; |
1276 | #ifdef use_pthreads |
1277 | pthread_rwlockattr_t rwlock_attr; |
ebb1f61c |
1278 | #endif |
7193eb01 |
1279 | |
3f4fda20 |
1280 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1281 | "mod_waklog: version %s initialized.", version); |
7193eb01 |
1282 | |
3f4fda20 |
1283 | if ( sharedspace ) { |
1284 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: shared memory already allocated." ); |
1285 | } else { |
1286 | |
1287 | snprintf( cache_file, MAXNAMELEN, "/tmp/waklog_cache.%d", getpid() ); |
1288 | |
1289 | if ( ( fd = open( cache_file, O_RDWR, 0600 ) ) == -1 ) { |
1290 | |
1291 | if ( errno == ENOENT ) { |
1292 | |
1293 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: creating shared token cache file %s", cache_file ); |
1294 | use_existing = 0; |
1295 | if ( ( fd = open( cache_file, O_RDWR|O_CREAT|O_TRUNC, 0600 ) ) == -1 ) { |
1296 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file, errno ); |
1297 | exit(errno); |
1298 | } |
1299 | } else { |
1300 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file, errno ); |
1301 | } |
1302 | |
1303 | } |
1304 | |
1305 | if ( use_existing == 0 ) { |
1306 | struct sharedspace_s bob; |
1307 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: sizing our cache file %d to %d", fd, sizeof(struct sharedspace_s) ); |
1308 | memset( &bob, 0, sizeof(struct sharedspace_s)); |
1309 | write(fd, &bob, sizeof(struct sharedspace_s)); |
1310 | log_error(APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s) ); |
1311 | } |
4e1ae1cd |
1312 | |
3f4fda20 |
1313 | /* mmap the region */ |
1314 | |
1315 | if ( ( sharedspace = (struct sharedspace_s *) mmap ( NULL, sizeof(struct sharedspace_s), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0 ) ) != -1 ) { |
1316 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: shared mmap region ok %d", sharedspace ); |
1317 | close(fd); |
1318 | } else { |
1319 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: mmap failed %d", errno ); |
1320 | exit(errno); |
1321 | } |
1322 | } |
e21f34f0 |
1323 | |
3f4fda20 |
1324 | #ifdef use_pthreads |
1325 | #define locktype pthread_rwlock_t |
1326 | #else |
1327 | #define locktype rwlock_t |
ea3e8708 |
1328 | #endif |
e21f34f0 |
1329 | |
3f4fda20 |
1330 | /* mmap our shared space for our lock */ |
1331 | if ( sharedlock = ( locktype * ) mmap ( NULL, sizeof(locktype), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0 ) ) { |
1332 | #ifndef use_pthreads |
1333 | rwlock_init(sharedlock, USYNC_PROCESS, NULL ); |
1334 | #else |
1335 | pthread_rwlockattr_init(&rwlock_attr); |
1336 | pthread_rwlockattr_setpshared(&rwlock_attr, PTHREAD_PROCESS_SHARED); |
1337 | pthread_rwlock_init(sharedlock, &rwlock_attr ); |
1338 | #endif |
1339 | } else { |
1340 | log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: rwlock mmap failed %d", errno ); |
1341 | } |
e21f34f0 |
1342 | |
3f4fda20 |
1343 | #undef locktype |
e21f34f0 |
1344 | |
3f4fda20 |
1345 | /* set our default tokens */ |
1346 | |
1347 | getModConfig (cfg, s); |
42d78dfb |
1348 | |
1349 | oldrenewcount = sharedspace->renewcount; |
1350 | |
1351 | pag_for_children = 0; |
1352 | |
1353 | pid = ap_bspawn_child (p, waklog_child_routine, s, kill_always, |
1354 | NULL, NULL, NULL); |
1355 | |
1356 | pag_for_children = 1; |
1357 | |
3f4fda20 |
1358 | log_error (APLOG_MARK, APLOG_DEBUG, 0, s, |
42d78dfb |
1359 | "mod_waklog: ap_bspawn_child: %d.", pid); |
3f4fda20 |
1360 | |
1361 | if ( use_existing == 0 ) { |
1362 | /* wait here until our child process has gone and done it's renewing thing. */ |
1363 | while( sharedspace->renewcount == oldrenewcount ) { |
1364 | log_error( APLOG_MARK, APLOG_ERR, 0, s, "mod_waklog: waiting for tokens..." ); |
1365 | sleep(2); |
87822447 |
1366 | } |
3f4fda20 |
1367 | } |
1368 | |
1369 | if ( cfg->default_principal ) { |
1370 | set_auth( s, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1371 | } |
1372 | |
87822447 |
1373 | } |
3f4fda20 |
1374 | #endif |
1375 | |
1376 | static int |
1377 | waklog_phase0 (request_rec * r) |
e21f34f0 |
1378 | { |
3f4fda20 |
1379 | waklog_config *cfg; |
e21f34f0 |
1380 | |
3f4fda20 |
1381 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1382 | "mod_waklog: phase0 called"); |
3f4fda20 |
1383 | |
1384 | cfg = retrieve_config(r); |
e21f34f0 |
1385 | |
3f4fda20 |
1386 | if ( cfg->protect && cfg->principal ) { |
1387 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 using user %s", cfg->principal); |
1388 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1389 | } else if ( cfg->default_principal ) { |
1390 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 using default user %s", cfg->default_principal); |
1391 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1392 | } else { |
1393 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase0 not doing nothin."); |
1394 | } |
e21f34f0 |
1395 | |
3f4fda20 |
1396 | return DECLINED; |
e21f34f0 |
1397 | } |
4e1ae1cd |
1398 | |
3f4fda20 |
1399 | static int |
1400 | waklog_phase1 (request_rec * r) |
bed98ff9 |
1401 | { |
3f4fda20 |
1402 | waklog_config *cfg; |
313dde40 |
1403 | |
3f4fda20 |
1404 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1405 | "mod_waklog: phase1 called"); |
7193eb01 |
1406 | |
3f4fda20 |
1407 | cfg = retrieve_config(r); |
313dde40 |
1408 | |
3f4fda20 |
1409 | if ( cfg->protect && cfg->principal ) { |
1410 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 using user %s", cfg->principal); |
1411 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1412 | } else if ( cfg->default_principal ) { |
1413 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 using default user %s", cfg->default_principal); |
1414 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1415 | } else { |
1416 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase1 not doing nothin."); |
1417 | } |
4e1ae1cd |
1418 | |
3f4fda20 |
1419 | return DECLINED; |
7193eb01 |
1420 | } |
4e1ae1cd |
1421 | |
3f4fda20 |
1422 | static int |
1423 | waklog_phase3 (request_rec * r) |
7193eb01 |
1424 | { |
3f4fda20 |
1425 | waklog_config *cfg; |
1e18ef7d |
1426 | |
3f4fda20 |
1427 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1428 | "mod_waklog: phase 3 called"); |
1e18ef7d |
1429 | |
3f4fda20 |
1430 | cfg = retrieve_config(r); |
1431 | |
1432 | if ( cfg->protect && cfg->principal ) { |
1433 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 using user %s", cfg->principal); |
1434 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1435 | } else if ( cfg->default_principal ) { |
1436 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 using default user %s", cfg->default_principal); |
1437 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1438 | } else { |
1439 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase3 not doing nothin."); |
1440 | } |
1441 | |
1442 | return DECLINED; |
1443 | } |
bed98ff9 |
1444 | |
3f4fda20 |
1445 | static int |
1446 | waklog_phase6 (request_rec * r) |
1447 | { |
1448 | waklog_config *cfg; |
1449 | |
1450 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1451 | "mod_waklog: phase6 called"); |
3f4fda20 |
1452 | |
1453 | cfg = retrieve_config(r); |
1454 | |
1455 | if ( cfg->protect && cfg->principal ) { |
1456 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 using user %s", cfg->principal); |
1457 | set_auth(r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1458 | } else if ( cfg->default_principal ) { |
1459 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 using default user %s", cfg->default_principal); |
1460 | set_auth(r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1461 | } else { |
1462 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase6 not doing nothin."); |
1463 | } |
1464 | |
1465 | return DECLINED; |
1466 | } |
bed98ff9 |
1467 | |
3f4fda20 |
1468 | static int |
1469 | waklog_phase7 (request_rec * r) |
1470 | { |
1471 | waklog_config *cfg; |
1472 | int rc = 0; |
1473 | |
1474 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1475 | "mod_waklog: phase7 called"); |
3f4fda20 |
1476 | |
1477 | cfg = retrieve_config (r); |
1478 | |
1479 | if ( cfg->protect && cfg->usertokens ) { |
1480 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using usertokens"); |
1481 | rc = set_auth( r->server, r, 1, NULL, NULL, 0); |
1482 | } else if ( cfg->protect && cfg->principal ) { |
1483 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using user %s", cfg->principal); |
1484 | rc = set_auth( r->server, r, 0, cfg->principal, cfg->keytab, 0); |
1485 | } else if ( cfg->default_principal ) { |
1486 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase7 using default user %s", cfg->default_principal); |
1487 | rc = set_auth( r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1488 | } |
1489 | |
1490 | if ( rc ) { |
1491 | return 400; |
1492 | } |
1493 | |
1494 | return DECLINED; |
1495 | } |
87822447 |
1496 | |
3f4fda20 |
1497 | static int |
1498 | waklog_phase9 (request_rec * r) |
1499 | { |
1500 | waklog_config *cfg; |
bed98ff9 |
1501 | |
3f4fda20 |
1502 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1503 | "mod_waklog: phase9 called"); |
bed98ff9 |
1504 | |
3f4fda20 |
1505 | getModConfig (cfg, r->server); |
1506 | |
1507 | if ( cfg->default_principal ) { |
1508 | log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "mod_waklog: phase9 using default user %s", cfg->default_principal); |
1509 | set_auth( r->server, r, 0, cfg->default_principal, cfg->default_keytab, 0); |
1510 | } |
1511 | |
1512 | return DECLINED; |
bed98ff9 |
1513 | } |
1514 | |
ff47641b |
1515 | |
87822447 |
1516 | static |
c9d59a9c |
1517 | #ifdef APACHE2 |
ff47641b |
1518 | int |
87822447 |
1519 | #else |
ff47641b |
1520 | void |
87822447 |
1521 | #endif |
ff47641b |
1522 | waklog_new_connection (conn_rec * c |
c9d59a9c |
1523 | #ifdef APACHE2 |
42d78dfb |
1524 | , void *dummy |
87822447 |
1525 | #endif |
ff47641b |
1526 | ) |
1527 | { |
1528 | |
3f4fda20 |
1529 | waklog_config *cfg; |
ff47641b |
1530 | |
1531 | log_error (APLOG_MARK, APLOG_DEBUG, 0, c->base_server, |
42d78dfb |
1532 | "mod_waklog: new_connection called: pid: %d", getpid ()); |
1533 | |
1534 | getModConfig(cfg, c->base_server); |
1535 | |
1536 | if ( cfg->default_principal ) { |
1537 | log_error(APLOG_MARK, APLOG_DEBUG, 0, c->base_server, "mod_waklog: new conn setting default user %s", |
1538 | cfg->default_principal); |
1539 | set_auth( c->base_server, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); |
1540 | } |
1541 | |
1542 | |
3f4fda20 |
1543 | return |
c9d59a9c |
1544 | #ifdef APACHE2 |
3f4fda20 |
1545 | 0 |
87822447 |
1546 | #endif |
3f4fda20 |
1547 | ; |
7193eb01 |
1548 | } |
bed98ff9 |
1549 | |
c4ad0387 |
1550 | |
1196adfe |
1551 | /* |
1552 | ** Here's a quick explaination for phase0 and phase2: |
1553 | ** Apache does a stat() on the path between phase0 and |
1554 | ** phase2, and must by ACLed rl to succeed. So, at |
1555 | ** phase0 we acquire credentials for umweb:servers from |
1556 | ** a keytab, and at phase2 we must ensure we remove them. |
1557 | ** |
1558 | ** Failure to "unlog" would be a security risk. |
1559 | */ |
ff47641b |
1560 | static int |
1561 | waklog_phase2 (request_rec * r) |
c4ad0387 |
1562 | { |
161ffd84 |
1563 | |
ff47641b |
1564 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1565 | "mod_waklog: phase2 called"); |
1196adfe |
1566 | |
ff47641b |
1567 | if (child.token.ticketLen) |
1568 | { |
1569 | memset (&child.token, 0, sizeof (struct ktc_token)); |
c4ad0387 |
1570 | |
ff47641b |
1571 | ktc_ForgetAllTokens (); |
c4ad0387 |
1572 | |
ff47641b |
1573 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1574 | "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", |
1575 | getpid ()); |
c4ad0387 |
1576 | } |
1196adfe |
1577 | |
ff47641b |
1578 | log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, |
42d78dfb |
1579 | "mod_waklog: phase2 returning"); |
1196adfe |
1580 | |
3f4fda20 |
1581 | return DECLINED; |
c4ad0387 |
1582 | } |
1583 | |
c9d59a9c |
1584 | #ifndef APACHE2 |
313dde40 |
1585 | module MODULE_VAR_EXPORT waklog_module = { |
3f4fda20 |
1586 | STANDARD_MODULE_STUFF, |
866ccfbd |
1587 | waklog_init, /* module initializer */ |
42d78dfb |
1588 | waklog_create_dir_config, /* create per-dir config structures */ |
866ccfbd |
1589 | waklog_merge_dir_config, /* merge per-dir config structures */ |
1590 | waklog_create_server_config, /* create per-server config structures */ |
1591 | waklog_merge_dir_config, /* merge per-server config structures */ |
1592 | waklog_cmds, /* table of config file commands */ |
1593 | NULL, /* [#8] MIME-typed-dispatched handlers */ |
1594 | waklog_phase1, /* [#1] URI to filename translation */ |
1595 | NULL, /* [#4] validate user id from request */ |
1596 | NULL, /* [#5] check if the user is ok _here_ */ |
1597 | waklog_phase3, /* [#3] check access by host address */ |
1598 | waklog_phase6, /* [#6] determine MIME type */ |
1599 | waklog_phase7, /* [#7] pre-run fixups */ |
1600 | waklog_phase9, /* [#9] log a transaction */ |
1601 | NULL, /* [#2] header parser */ |
1602 | waklog_child_init, /* child_init */ |
1603 | waklog_child_exit, /* child_exit */ |
1604 | waklog_phase0 /* [#0] post read-request */ |
bed98ff9 |
1605 | #ifdef EAPI |
866ccfbd |
1606 | , NULL, /* EAPI: add_module */ |
1607 | NULL, /* EAPI: remove_module */ |
1608 | NULL, /* EAPI: rewrite_command */ |
1609 | waklog_new_connection /* EAPI: new_connection */ |
bed98ff9 |
1610 | #endif |
1611 | }; |
87822447 |
1612 | #else |
1613 | static void |
ff47641b |
1614 | waklog_register_hooks (apr_pool_t * p) |
87822447 |
1615 | { |
3f4fda20 |
1616 | ap_hook_translate_name (waklog_phase1, NULL, NULL, APR_HOOK_FIRST); |
ff47641b |
1617 | ap_hook_header_parser (waklog_phase2, NULL, NULL, APR_HOOK_FIRST); |
3f4fda20 |
1618 | ap_hook_access_checker (waklog_phase3, NULL, NULL, APR_HOOK_FIRST); |
1619 | ap_hook_type_checker (waklog_phase6, NULL, NULL, APR_HOOK_FIRST); |
ff47641b |
1620 | ap_hook_fixups (waklog_phase7, NULL, NULL, APR_HOOK_FIRST); |
3f4fda20 |
1621 | ap_hook_log_transaction (waklog_phase9, NULL, NULL, APR_HOOK_FIRST); |
ff47641b |
1622 | ap_hook_child_init (waklog_child_init, NULL, NULL, APR_HOOK_FIRST); |
1623 | ap_hook_post_read_request (waklog_phase0, NULL, NULL, APR_HOOK_FIRST); |
1624 | ap_hook_pre_connection (waklog_new_connection, NULL, NULL, APR_HOOK_FIRST); |
1625 | ap_hook_post_config (waklog_init_handler, NULL, NULL, APR_HOOK_MIDDLE); |
87822447 |
1626 | } |
1627 | |
1628 | |
3f4fda20 |
1629 | module AP_MODULE_DECLARE_DATA waklog_module = { |
1630 | STANDARD20_MODULE_STUFF, |
42d78dfb |
1631 | waklog_create_dir_config, /* create per-dir conf structures */ |
1632 | waklog_merge_dir_config, /* merge per-dir conf structures */ |
1633 | waklog_create_server_config, /* create per-server conf structures */ |
1634 | waklog_merge_dir_config, /* merge per-server conf structures */ |
1635 | waklog_cmds, /* table of configuration directives */ |
1636 | waklog_register_hooks /* register hooks */ |
87822447 |
1637 | }; |
1638 | #endif |