1 #define _LARGEFILE64_SOURCE
5 #include "http_config.h"
7 #include "http_protocol.h"
8 #include "http_request.h"
16 #include <sys/types.h>
20 #error "make sure you include the right stuff here"
24 #define MAXNAMELEN 1024
27 #ifdef STANDARD20_MODULE_STUFF
31 /********************* APACHE1 ******************************************************************************/
33 #include "ap_config.h"
35 #include <sys/ioccom.h>
37 #include <http_conf_globals.h>
39 #define MK_TABLE_GET ap_table_get
40 #define MK_TABLE_SET ap_table_set
41 #define command(name, func, var, type, usage) \
44 RSRC_CONF | ACCESS_CONF , type, usage }
47 /********************* APACHE2 ******************************************************************************/
49 #include <apr_strings.h>
50 #include <apr_base64.h>
51 #define ap_pcalloc apr_pcalloc
52 #define ap_pdupstr apr_pdupstr
53 #define ap_pstrdup apr_pstrdup
54 #define MK_POOL apr_pool_t
55 #define MK_TABLE_GET apr_table_get
56 #define MK_TABLE_SET apr_table_set
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, \
65 RSRC_CONF | ACCESS_CONF, usage)
66 module AP_MODULE_DECLARE_DATA waklog_module
;
67 typedef struct { int dummy
; } child_info
;
68 const char *userdata_key
= "waklog_init";
71 /**************************************************************************************************/
75 #include <afs/venus.h>
77 #include <afs/dirpath.h>
78 #include <afs/ptuser.h>
81 #define TKT_LIFE ( 12 * 60 * 60 )
82 #define SLEEP_TIME ( TKT_LIFE - 5*60 )
86 #define WAKLOG_UNSET 0
90 #define APLOG_DEBUG APLOG_ERR
93 /* this is used to turn off pag generation for the backround worker child during startup */
94 int pag_for_children
= 1;
102 int cell_in_principal
;
103 int disable_token_cache
;
106 char *default_principal
;
107 char *default_keytab
;
109 char *afs_cell_realm
;
117 struct ktc_token token
;
118 char clientprincipal
[MAXNAMELEN
];
119 krb5_context kcontext
;
121 struct ktc_principal server
;
122 struct ktc_principal client
;
124 } waklog_child_config
;
126 waklog_child_config child
;
128 struct tokencache_ent
{
129 char clientprincipal
[MAXNAMELEN
];
130 struct ktc_token token
;
131 struct ktc_principal client
;
132 struct ktc_principal server
;
137 #define SHARED_TABLE_SIZE 512
139 struct sharedspace_s
{
141 struct tokencache_ent sharedtokens
[SHARED_TABLE_SIZE
];
144 struct sharedspace_s
*sharedspace
= NULL
;
153 pthread_rwlock_t
*sharedlock
= NULL
;
155 rwlock_t
*sharedlock
= NULL
;
158 struct renew_ent renewtable
[SHARED_TABLE_SIZE
];
164 #define getModConfig(P, X) P = (waklog_config *) ap_get_module_config( (X)->module_config, &waklog_module );
169 #include <sys/ioccom.h>
172 #include <afs/venus.h>
173 #include <afs/auth.h>
174 #include <afs/dirpath.h>
175 #include <afs/ptuser.h>
176 #include <rx/rxkad.h>
180 log_error (const char *file
, int line
, int level
, int status
,
181 const server_rec
* s
, const char *fmt
, ...)
187 vsnprintf (errstr
, 1024, fmt
, ap
);
191 ap_log_error (file
, line
, level
| APLOG_NOERRNO
, status
, s
, "(%d) %s", getpid(), errstr
);
193 ap_log_error (file
, line
, level
| APLOG_NOERRNO
, s
, "(%d) %s", getpid(), errstr
);
198 waklog_config
*retrieve_config(request_rec
*r
) {
203 if ( r
&& r
->main
) {
211 if ( my
&& ( cfg
= (waklog_config
*) ap_get_module_config(my
->per_dir_config
, &waklog_module
) ) ) {
214 getModConfig (cfg
, r
->server
);
221 /* set_auth -- sets the tokens of the current process to this user.
222 if "self" is set, it divines the user from the current requests' environment.
223 otherwise, it's gettng it from principal/keytab */
226 set_auth ( server_rec
*s
, request_rec
*r
, int self
, char *principal
, char *keytab
, int storeonly
) {
230 krb5_error_code kerror
= 0;
231 krb5_principal kprinc
= NULL
;
232 krb5_get_init_creds_opt kopts
;
235 krb5_ccache clientccache
;
236 struct ktc_principal server
= { "afs", "", "" };
237 struct ktc_principal client
;
238 struct ktc_token token
;
239 krb5_creds
*v5credsp
= NULL
;
240 krb5_keytab krb5kt
= NULL
;
241 char buf
[MAXNAMELEN
];
245 time_t oldest_time
= 0;
250 int cell_in_principal
;
252 int use_client_credentials
= 0;
254 char k5user
[MAXNAMELEN
] = "";
255 char *k5secret
= NULL
;
259 memset((char *) &increds
, 0, sizeof(increds
));
260 /* init some stuff if it ain't already */
261 /* XXX - In what situation will these not be initialized? */
263 if ( ! child
.kcontext
) {
264 if ((kerror
= krb5_init_context(&child
.kcontext
))) {
265 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: can't initialize Kerberos context err=%d",
271 if ( !child
.ccache
) {
272 if ((kerror
= krb5_cc_resolve(child
.kcontext
, "MEMORY:tmpcache", &child
.ccache
))) {
273 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: can't initialize credentials cache %s err=%d",
279 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: set_auth: %d, %s, %s, %d, KRB5CC=%s user=%s",
280 self
, principal
? principal
: "NULL",
281 keytab
? keytab
: "NULL",
283 k5path
? k5path
: "NULL",
285 (r
&& r
->user
) ? r
->user
: "NULL"
287 (r
&& r
->connection
&& r
->connection
->user
) ? r
->connection
->user
: "NULL"
291 /* pull the server config record that we care about... */
294 cfg
= retrieve_config(r
);
296 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, s
,
297 "mod_waklog: set_auth using no config" );
298 getModConfig (cfg
, s
);
302 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: cfg is %d", cfg
);
307 /* pull out our principal name and stuff from the environment -- webauth better have sent
311 if ( ! ( r
&& r
->connection
&& r
->user
)) {
312 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: self authentication selected, but no data available");
313 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: r->user=%s", (r
->user
==NULL
? "null" : r
->user
==NULL
));
317 strncpy(k5user
, r
->user
, sizeof(k5user
));
319 if ( ! (r
&& r
->connection
&& r
->connection
->user
)) {
320 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: self authentication selected, but no username available");
324 strncpy(k5user
, r
->connection
->user
, sizeof(k5user
));
326 /* if they've supplied a credentials cache */
327 k5path
= (char *) MK_TABLE_GET( r
->subprocess_env
, "KRB5CCNAME" );
329 /* the other thing we need is someone's password */
330 k5secret
= (char *) MK_TABLE_GET( r
->notes
, "ATTR_PASSWORD" );
332 /* we'll pick this up later after we've checked the cache and current state */
336 strncpy(k5user
, principal
, sizeof(k5user
));
340 strncpy(k5user
, r
->user
, sizeof(k5user
));
343 if (r
&& r
->connection
&& r
->connection
->user
) {
344 strncpy(k5user
, r
->connection
->user
, sizeof(k5user
));
348 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: set_auth: k5user=%s", k5user
? k5user
: "NULL");
351 /* see if we should just go ahead and ignore this call, since we already should be set to these
357 pthread_rwlock_rdlock( sharedlock
);
359 rw_rdlock( sharedlock
);
362 for ( i
= 0; i
< SHARED_TABLE_SIZE
; ++i
) {
364 /* if it's a token for the principal we're looking for, and it hasn't expired yet */
366 if ( ( !strcmp( k5user
,
367 sharedspace
->sharedtokens
[i
].clientprincipal
) ) &&
368 ( sharedspace
->sharedtokens
[i
].token
.endTime
> mytime
) ) {
370 if ( ! memcmp(&child
.token
, &sharedspace
->sharedtokens
[i
].token
, sizeof(child
.token
) ) ) {
376 /* copy the token out of the cache and into the child object */
378 strcpy(child
.clientprincipal
, sharedspace
->sharedtokens
[i
].clientprincipal
);
379 memcpy(&child
.token
, &sharedspace
->sharedtokens
[i
].token
, sizeof(child
.token
));
380 memcpy(&child
.server
, &sharedspace
->sharedtokens
[i
].server
, sizeof(child
.server
));
381 memcpy(&child
.client
, &sharedspace
->sharedtokens
[i
].client
, sizeof(child
.client
));
383 /* set our last used time thing */
384 sharedspace
->sharedtokens
[i
].lastused
= mytime
;
394 /* release the lock on the token cache */
396 pthread_rwlock_unlock( sharedlock
);
398 rw_unlock( sharedlock
);
402 /* release the lock on the token cache */
403 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
,
404 "mod_waklog: set_auth using shared token %d for %s", i
, k5user
);
408 /* if this is something that was in the cache, and it's the same as the token we already have stored,
409 and we weren't calling this just to renew it... */
411 if ( usecached
&& indentical
) {
412 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: token is identical for %s", k5user
);
418 /* if 'usecached' isn't set, we've got to get our tokens from somewhere... */
419 if (( ! usecached
) && ( k5user
)) {
421 /* clear out the creds structure */
422 memset((void *) &v5creds
, 0, sizeof(v5creds
));
424 /* create a principal out of our k5user string */
426 if ( ( kerror
= krb5_parse_name (child
.kcontext
, k5user
, &kprinc
) ) ) {
427 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: krb5_parse_name %s", (char *) error_message(kerror
) );
431 /* create the credentials options */
433 krb5_get_init_creds_opt_init ( &kopts
);
434 krb5_get_init_creds_opt_set_tkt_life ( &kopts
, TKT_LIFE
);
435 krb5_get_init_creds_opt_set_renew_life ( &kopts
, 0 );
436 krb5_get_init_creds_opt_set_forwardable ( &kopts
, 0 );
437 krb5_get_init_creds_opt_set_proxiable ( &kopts
, 0 );
439 if ( keytab
|| k5secret
) {
442 /* if we've been passed a keytab, we're going to be getting our credentials from it */
444 log_error( APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: using keytab %s", keytab
);
446 if ( ( kerror
= krb5_kt_resolve(child
.kcontext
, keytab
, &krb5kt
) ) ) {
447 log_error( APLOG_MARK
, APLOG_ERR
, 0, s
,
448 "mod_waklog: krb5_kt_resolve %s", error_message(kerror
) );
452 if ((kerror
= krb5_get_init_creds_keytab (child
.kcontext
, &v5creds
,
453 kprinc
, krb5kt
, 0, NULL
, &kopts
) ) ) {
454 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: krb5_get_init_creds_keytab %s",
455 error_message(kerror
) );
458 } else if (k5secret
) {
460 /* If the WebSSO is lame enough to provide a secret, then try and use that to get a token */
462 if ((kerror
= krb5_get_init_creds_password ( child
.kcontext
, &v5creds
,
463 kprinc
, k5secret
, NULL
, NULL
, 0, NULL
, &kopts
) ) ) {
464 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: krb5_get_init_creds_password %s",
465 error_message(kerror
) );
466 /* nuke the password so it doesn't end up in core files */
467 memset(k5secret
, 0, sizeof(k5secret
));
471 memset(k5secret
, 0, sizeof(k5secret
));
474 /* initialize the credentials cache and store the stuff we just got */
475 if ( ( kerror
= krb5_cc_initialize (child
.kcontext
, child
.ccache
, kprinc
) ) ) {
476 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: init credentials cache %s",
477 error_message(kerror
));
481 if ( ( kerror
= krb5_cc_store_cred(child
.kcontext
, child
.ccache
, &v5creds
) ) ) {
482 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: cannot store credentials %s",
483 error_message(kerror
));
487 krb5_free_cred_contents(child
.kcontext
, &v5creds
);
490 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: store cred %s", error_message(kerror
));
494 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: kinit ok for %s", k5user
);
497 /* If we've got a path to a credentials cache, then try and use that. We can't just
498 * replace child.creds, because we want to ensure that only this request gets access to
501 if ( ( kerror
= krb5_cc_resolve(child
.kcontext
, k5path
, &clientccache
) ) ) {
502 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
,
503 "mod_waklog: can't open provided credentials cache %s err=%d",
508 use_client_credentials
= 1;
511 /* now, to the 'aklog' portion of our program. */
513 /** we make two attempts here, one for afs@REALM and one for afs/cell@REALM */
514 for(attempt
= 0; attempt
<= 1; attempt
++) {
515 strncpy( buf
, "afs", sizeof(buf
) - 1 );
516 cell_in_principal
= (cfg
->cell_in_principal
+ attempt
) % 2;
518 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: cell_in_principal=%d", cell_in_principal
);
519 if (cell_in_principal
) {
520 strncat(buf
, "/", sizeof(buf
) - strlen(buf
) - 1);
521 strncat(buf
, cfg
->afs_cell
, sizeof(buf
) - strlen(buf
) - 1);
523 if (cfg
->afs_cell_realm
!= WAKLOG_UNSET
) {
524 strncat(buf
, "@", sizeof(buf
) - strlen(buf
) - 1);
525 strncat(buf
, cfg
->afs_cell_realm
, sizeof(buf
) - strlen(buf
) - 1);
528 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: using AFS principal: %s", buf
);
530 if ((kerror
= krb5_parse_name (child
.kcontext
, buf
, &increds
.server
))) {
531 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: krb5_parse name %s", error_message(kerror
));
535 if (!use_client_credentials
) {
536 clientccache
= child
.ccache
;
539 if ((kerror
= krb5_cc_get_principal(child
.kcontext
, clientccache
, &increds
.client
))) {
540 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: krb5_cc_get_princ %s %p", error_message(kerror
), clientccache
);
544 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: retrieved data from ccache for %s", k5user
);
546 increds
.times
.endtime
= 0;
548 increds
.keyblock
.enctype
= ENCTYPE_DES_CBC_CRC
;
550 if ( ( kerror
= krb5_get_credentials (child
.kcontext
, 0, clientccache
, &increds
, &v5credsp
) ) ) {
551 /* only complain once we've tried both afs@REALM and afs/cell@REALM */
553 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: krb5_get_credentials: %s",
554 error_message(kerror
));
560 cfg
->cell_in_principal
= cell_in_principal
;
564 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: get_credentials passed for %s", k5user
);
566 if ( v5credsp
->ticket
.length
>= MAXKTCTICKETLEN
) {
567 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: ticket size (%d) too big to fake",
568 v5credsp
->ticket
.length
);
572 memset(&token
, 0, sizeof(struct ktc_token
));
574 token
.startTime
= v5credsp
->times
.starttime
? v5credsp
->times
.starttime
: v5credsp
->times
.authtime
;
575 token
.endTime
= v5credsp
->times
.endtime
;
577 memmove( &token
.sessionKey
, v5credsp
->keyblock
.contents
, v5credsp
->keyblock
.length
);
578 token
.kvno
= RXKAD_TKT_TYPE_KERBEROS_V5
;
579 token
.ticketLen
= v5credsp
->ticket
.length
;
580 memmove( token
.ticket
, v5credsp
->ticket
.data
, token
.ticketLen
);
584 memmove( buf
, v5credsp
->client
->data
[0].data
, min(v5credsp
->client
->data
[0].length
,
586 buf
[v5credsp
->client
->data
[0].length
] = '\0';
587 if ( v5credsp
->client
->length
> 1 ) {
588 strncat(buf
, ".", sizeof(buf
) - strlen(buf
) - 1);
589 buflen
= strlen(buf
);
590 memmove(buf
+ buflen
, v5credsp
->client
->data
[1].data
,
591 min(v5credsp
->client
->data
[1].length
,
592 MAXKTCNAMELEN
- strlen(buf
) - 1));
593 buf
[buflen
+ v5credsp
->client
->data
[1].length
] = '\0';
596 /* assemble the client */
597 strncpy(client
.name
, buf
, sizeof(client
.name
) - 1 );
598 strncpy(client
.instance
, "", sizeof(client
.instance
) - 1 );
599 memmove(buf
, v5credsp
->client
->realm
.data
, min(v5credsp
->client
->realm
.length
,
601 buf
[v5credsp
->client
->realm
.length
] = '\0';
602 strncpy(client
.cell
, buf
, sizeof(client
.cell
));
604 /* assemble the server's cell */
605 strncpy(server
.cell
, cfg
->afs_cell
, sizeof(server
.cell
) - 1);
607 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: preparing to init PTS connection for %s", server
.cell
);
609 /* fill out the AFS ID in the client name */
610 /* we've done a pr_Initialize in the child_init -- once, per process. If you try to do it more
611 * strange things seem to happen. */
614 afs_int32 viceId
= 0;
616 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: making PTS call to look up %s", client
.name
);
618 if ( ( rc
= pr_SNameToId( client
.name
, &viceId
) ) == 0 ) {
619 snprintf( client
.name
, sizeof(client
.name
), "AFS ID %d", viceId
);
621 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: PTS call returned error %d ", rc
);
624 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: PTS call returned %s ", client
.name
);
628 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: server: name %s, instance %s, cell %s",
629 server
.name
, server
.instance
, server
.cell
);
631 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: client: name %s, instance %s, cell %s",
632 client
.name
, client
.instance
, client
.cell
);
634 /* copy the resulting stuff into the child structure */
636 strncpy(child
.clientprincipal
, k5user
, sizeof(child
.clientprincipal
));
637 memcpy(&child
.token
, &token
, sizeof(child
.token
));
638 memcpy(&child
.server
, &server
, sizeof(child
.server
));
639 memcpy(&child
.client
, &client
, sizeof(child
.client
));
641 /* stuff the resulting token-related stuff into our shared token cache */
642 /* note, that anything that was set from a keytab is "persistant", and is immune
643 * from LRU-aging. This is because nothing but the process that's running as root
644 * can update these, and it's running every hour or so and renewing these tokens.
645 * and we don't want them aged out.
648 mytime
= oldest_time
= time(0);
650 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: waiting for shared space for %s ", k5user
);
653 pthread_rwlock_wrlock(sharedlock
);
655 rw_wrlock(sharedlock
);
658 for( i
= ( SHARED_TABLE_SIZE
- 1 ); i
>= 0; i
-- ) {
659 if ( ( sharedspace
->sharedtokens
[i
].lastused
<= oldest_time
) &&
660 ( sharedspace
->sharedtokens
[i
].persist
== 0 ) ) {
662 oldest_time
= sharedspace
->sharedtokens
[i
].lastused
;
664 if ( ! strcmp ( sharedspace
->sharedtokens
[i
].clientprincipal
,
665 child
.clientprincipal
) ) {
666 memcpy(&sharedspace
->sharedtokens
[i
].token
, &child
.token
, sizeof(child
.token
) );
667 memcpy(&sharedspace
->sharedtokens
[i
].client
, &child
.client
, sizeof(child
.client
) );
668 memcpy(&sharedspace
->sharedtokens
[i
].server
, &child
.server
, sizeof(child
.server
) );
669 sharedspace
->sharedtokens
[i
].lastused
= mytime
;
670 sharedspace
->sharedtokens
[i
].persist
= keytab
? 1 : 0;
676 if ( stored
== -1 ) {
677 memcpy(&sharedspace
->sharedtokens
[oldest
].token
, &child
.token
, sizeof(child
.token
) );
678 memcpy(&sharedspace
->sharedtokens
[oldest
].client
, &child
.client
, sizeof(child
.client
) );
679 memcpy(&sharedspace
->sharedtokens
[oldest
].server
, &child
.server
, sizeof(child
.server
) );
680 strcpy(sharedspace
->sharedtokens
[oldest
].clientprincipal
, child
.clientprincipal
);
681 sharedspace
->sharedtokens
[oldest
].lastused
= mytime
;
682 sharedspace
->sharedtokens
[oldest
].persist
= keytab
? 1 : 0;
687 pthread_rwlock_unlock(sharedlock
);
689 rw_unlock(sharedlock
);
692 log_error( APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: token stored in slot %d for %s", stored
,
693 child
.clientprincipal
);
695 } else if ( ! usecached
) {
696 log_error( APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: set_auth divergent case");
705 /* don't ask. Something about AIX. We're leaving it here.*/
706 /* write(2, "", 0); */
708 /* we try twice, because sometimes the first one fails. Dunno why, but it always works the second time */
710 if ((rc
= ktc_SetToken(&child
.server
, &child
.token
, &child
.client
, 0))) {
711 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: settoken returned %s for %s -- trying again",
712 error_message(rc
), k5user
);
713 if ((rc
= ktc_SetToken(&child
.server
, &child
.token
, &child
.client
, 0))) {
714 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: settoken2 returned %s for %s",
715 error_message(rc
), k5user
);
721 if (use_client_credentials
)
722 krb5_cc_close(child
.kcontext
, clientccache
);
724 krb5_free_cred_contents(child
.kcontext
, v5credsp
);
725 if ( increds
.client
)
726 krb5_free_principal (child
.kcontext
, increds
.client
);
727 if ( increds
.server
)
728 krb5_free_principal (child
.kcontext
, increds
.server
);
730 (void) krb5_kt_close(child
.kcontext
, krb5kt
);
732 krb5_free_principal (child
.kcontext
, kprinc
);
735 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: set_auth ending with %d", rc
);
736 } else if ( kerror
) {
737 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: set_auth ending with krb5 error %d, %s", kerror
, error_message(kerror
));
739 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: set_auth ending ok");
742 return kerror
? (int) kerror
: (int) rc
;
749 waklog_create_server_config (MK_POOL
* p
, server_rec
* s
)
753 cfg
= (waklog_config
*) ap_pcalloc (p
, sizeof (waklog_config
));
755 memset(cfg
, 0, sizeof(waklog_config
));
756 cfg
->path
= "(server)";
757 cfg
->protect
= WAKLOG_UNSET
;
758 cfg
->usertokens
= WAKLOG_UNSET
;
759 cfg
->disable_token_cache
= WAKLOG_UNSET
;
760 cfg
->keytab
= WAKLOG_UNSET
;
761 cfg
->principal
= WAKLOG_UNSET
;
762 cfg
->default_principal
= WAKLOG_UNSET
;
763 cfg
->default_keytab
= WAKLOG_UNSET
;
764 cfg
->afs_cell
= WAKLOG_UNSET
;
765 cfg
->afs_cell_realm
= WAKLOG_UNSET
;
769 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, s
,
770 "mod_waklog: server config created.");
775 /* initialize with host-config information */
778 waklog_create_dir_config (MK_POOL
* p
, char *dir
)
782 cfg
= (waklog_config
*) ap_pcalloc (p
, sizeof (waklog_config
));
783 memset(cfg
, 0, sizeof(waklog_config
));
785 cfg
->path
= ap_pstrdup(p
, dir
);
786 cfg
->protect
= WAKLOG_UNSET
;
787 cfg
->usertokens
= WAKLOG_UNSET
;
788 cfg
->disable_token_cache
= WAKLOG_UNSET
;
789 cfg
->keytab
= WAKLOG_UNSET
;
790 cfg
->principal
= WAKLOG_UNSET
;
791 cfg
->default_principal
= WAKLOG_UNSET
;
792 cfg
->default_keytab
= WAKLOG_UNSET
;
793 cfg
->afs_cell
= WAKLOG_UNSET
;
794 cfg
->afs_cell_realm
= WAKLOG_UNSET
;
801 static void *waklog_merge_dir_config(MK_POOL
*p
, void *parent_conf
, void *newloc_conf
) {
803 waklog_config
*merged
= ( waklog_config
* ) ap_pcalloc(p
, sizeof(waklog_config
) );
804 waklog_config
*parent
= ( waklog_config
* ) parent_conf
;
805 waklog_config
*child
= ( waklog_config
* ) newloc_conf
;
807 merged
->protect
= child
->protect
!= WAKLOG_UNSET
? child
->protect
: parent
->protect
;
809 merged
->path
= child
->path
!= WAKLOG_UNSET
? child
->path
: parent
->path
;
811 merged
->usertokens
= child
->usertokens
!= WAKLOG_UNSET
? child
->usertokens
: parent
->usertokens
;
813 merged
->disable_token_cache
= child
->disable_token_cache
!= WAKLOG_UNSET
? child
->disable_token_cache
: parent
->disable_token_cache
;
815 merged
->principal
= child
->principal
!= WAKLOG_UNSET
? child
->principal
: parent
->principal
;
817 merged
->keytab
= child
->keytab
!= WAKLOG_UNSET
? child
->keytab
: parent
->keytab
;
819 merged
->default_keytab
= child
->default_keytab
!= WAKLOG_UNSET
? child
->default_keytab
: parent
->default_keytab
;
821 merged
->default_principal
= child
->default_principal
!= WAKLOG_UNSET
? child
->default_principal
: parent
->default_principal
;
823 merged
->afs_cell
= child
->afs_cell
!= WAKLOG_UNSET
? child
->afs_cell
: parent
->afs_cell
;
825 merged
->afs_cell_realm
= child
->afs_cell_realm
!= WAKLOG_UNSET
? child
->afs_cell_realm
: parent
->afs_cell_realm
;
827 return (void *) merged
;
831 static void *waklog_merge_server_config(MK_POOL
*p
, void *parent_conf
, void *newloc_conf
) {
833 waklog_config
*merged
= ( waklog_config
* ) ap_pcalloc(p
, sizeof(waklog_config
) );
834 waklog_config
*pconf
= ( waklog_config
* ) parent_conf
;
835 waklog_config
*nconf
= ( waklog_config
* ) newloc_conf
;
837 merged
->protect
= nconf
->protect
== WAKLOG_UNSET
? pconf
->protect
: nconf
->protect
;
839 merged
->usertokens
= nconf
->usertokens
== WAKLOG_UNSET
? pconf
->usertokens
: nconf
->usertokens
;
841 merged
->disable_token_cache
= nconf
->disable_token_cache
== WAKLOG_UNSET
? pconf
->disable_token_cache
: nconf
->disable_token_cache
;
843 merged
->keytab
= nconf
->keytab
== WAKLOG_UNSET
? ap_pstrdup(p
, pconf
->keytab
) :
844 ( nconf
->keytab
== WAKLOG_UNSET
? WAKLOG_UNSET
: ap_pstrdup(p
, pconf
->keytab
) );
846 merged
->principal
= nconf
->principal
== WAKLOG_UNSET
? ap_pstrdup(p
, pconf
->principal
) :
847 ( nconf
->principal
== WAKLOG_UNSET
? WAKLOG_UNSET
: ap_pstrdup(p
, pconf
->principal
) );
849 merged
->afs_cell
= nconf
->afs_cell
== WAKLOG_UNSET
? ap_pstrdup(p
, pconf
->afs_cell
) :
850 ( nconf
->afs_cell
== WAKLOG_UNSET
? WAKLOG_UNSET
: ap_pstrdup(p
, pconf
->afs_cell
) );
852 merged
->afs_cell_realm
= nconf
->afs_cell_realm
== WAKLOG_UNSET
? ap_pstrdup(p
, pconf
->afs_cell_realm
) :
853 ( nconf
->afs_cell_realm
== WAKLOG_UNSET
? WAKLOG_UNSET
: ap_pstrdup(p
, pconf
->afs_cell_realm
) );
855 merged
->default_keytab
= nconf
->default_keytab
== WAKLOG_UNSET
? ap_pstrdup(p
, pconf
->default_keytab
) :
856 ( nconf
->default_keytab
== WAKLOG_UNSET
? WAKLOG_UNSET
: ap_pstrdup(p
, pconf
->default_keytab
) );
858 merged
->default_principal
= nconf
->default_principal
== WAKLOG_UNSET
? ap_pstrdup(p
, pconf
->default_principal
) :
859 ( nconf
->default_principal
== WAKLOG_UNSET
? WAKLOG_UNSET
: ap_pstrdup(p
, pconf
->default_principal
) );
862 return (void *) merged
;
867 set_waklog_enabled (cmd_parms
* params
, void *mconfig
, int flag
)
869 waklog_config
*cfg
= mconfig
? ( waklog_config
* ) mconfig
:
870 ( waklog_config
* ) ap_get_module_config(params
->server
->module_config
, &waklog_module
);
874 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, params
->server
,
875 "mod_waklog: waklog_enabled set on %s", cfg
->path
? cfg
->path
: "NULL");
880 /* this adds a principal/keytab pair to get their tokens renewed by the
881 child process every few centons. */
883 void add_to_renewtable(MK_POOL
*p
, char *keytab
, char *principal
) {
887 if ( renewcount
>= SHARED_TABLE_SIZE
) {
888 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, NULL
, "mod_waklog: big problem. Increase the SHARED_TABLE_SIZE or \
889 decrease your tokens.");
893 /* check to see if it's already there */
895 for ( i
= 0; i
< renewcount
; i
++ ) {
896 if ( ! strcmp(renewtable
[i
].principal
, principal
) ) {
901 renewtable
[renewcount
].keytab
= ap_pstrdup(p
, keytab
);
902 renewtable
[renewcount
].principal
= ap_pstrdup(p
, principal
);
903 renewtable
[renewcount
].lastrenewed
= 0;
909 set_waklog_location_principal (cmd_parms
*params
, void *mconfig
, char *principal
, char *keytab
)
911 waklog_config
*cfg
= mconfig
? ( waklog_config
* ) mconfig
:
912 ( waklog_config
* ) ap_get_module_config(params
->server
->module_config
, &waklog_module
);
914 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, params
->server
,
915 "mod_waklog: configuring principal: %s, keytab: %s", principal
, keytab
);
917 cfg
->principal
= ap_pstrdup(params
->pool
, principal
);
918 cfg
->keytab
= ap_pstrdup (params
->pool
, keytab
);
920 add_to_renewtable(params
->pool
, keytab
, principal
);
928 set_waklog_afs_cell (cmd_parms
* params
, void *mconfig
, char *file
)
930 waklog_config
*waklog_mconfig
= ( waklog_config
* ) mconfig
;
931 waklog_config
*waklog_srvconfig
=
932 ( waklog_config
* ) ap_get_module_config(params
->server
->module_config
, &waklog_module
);
934 log_error (APLOG_MARK
, APLOG_INFO
, 0, params
->server
,
935 "mod_waklog: will use afs_cell: %s", file
);
937 waklog_srvconfig
->cell_in_principal
= 0;
938 waklog_srvconfig
->afs_cell
= ap_pstrdup (params
->pool
, file
);
939 waklog_srvconfig
->configured
= 1;
941 if (waklog_mconfig
!= NULL
) {
942 waklog_mconfig
->cell_in_principal
= waklog_srvconfig
->cell_in_principal
;
943 waklog_mconfig
->afs_cell
= ap_pstrdup (params
->pool
, file
);
944 waklog_mconfig
->configured
= 1;
950 set_waklog_afs_cell_realm (cmd_parms
* params
, void *mconfig
, char *file
)
952 waklog_config
*waklog_mconfig
= ( waklog_config
* ) mconfig
;
953 waklog_config
*waklog_srvconfig
=
954 ( waklog_config
* ) ap_get_module_config(params
->server
->module_config
, &waklog_module
);
956 log_error (APLOG_MARK
, APLOG_INFO
, 0, params
->server
,
957 "mod_waklog: will use afs_cell_realm: %s", file
);
959 waklog_srvconfig
->afs_cell_realm
= ap_pstrdup (params
->pool
, file
);
961 if (waklog_mconfig
!= NULL
) {
962 waklog_mconfig
->afs_cell_realm
= ap_pstrdup (params
->pool
, file
);
968 set_waklog_default_principal (cmd_parms
* params
, void *mconfig
, char *principal
, char *keytab
)
970 waklog_config
*cfg
= mconfig
? ( waklog_config
* ) mconfig
:
971 ( waklog_config
* ) ap_get_module_config(params
->server
->module_config
, &waklog_module
);
973 waklog_config
*srvcfg
= ( waklog_config
* ) ap_get_module_config(params
->server
->module_config
, &waklog_module
);
975 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, params
->server
,
976 "mod_waklog: set default princ/keytab: %s, %s for %s", principal
, keytab
, cfg
->path
? cfg
->path
: "NULL");
978 cfg
->default_principal
= ap_pstrdup (params
->pool
, principal
);
979 cfg
->default_keytab
= ap_pstrdup(params
->pool
, keytab
);
981 /* this also gets set at the server level */
982 if ( mconfig
&& ( ! cfg
->path
) ) {
983 srvcfg
->default_principal
= ap_pstrdup (params
->pool
, principal
);
984 srvcfg
->default_keytab
= ap_pstrdup(params
->pool
, keytab
);
986 log_error(APLOG_MARK
, APLOG_ERR
, 0, params
->server
, "only able to set default principal on a global level!");
987 return "Unable to set DefaultPrincipal outside of top level config!";
990 add_to_renewtable( params
->pool
, keytab
, principal
);
998 set_waklog_use_usertokens (cmd_parms
* params
, void *mconfig
, int flag
)
1000 waklog_config
*cfg
= mconfig
? ( waklog_config
* ) mconfig
:
1001 ( waklog_config
* ) ap_get_module_config(params
->server
->module_config
, &waklog_module
);
1003 cfg
->usertokens
= flag
;
1005 cfg
->configured
= 1;
1007 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, params
->server
,
1008 "mod_waklog: waklog_use_user_tokens set");
1014 set_waklog_disable_token_cache (cmd_parms
* params
, void *mconfig
, int flag
)
1016 waklog_config
*cfg
= mconfig
? ( waklog_config
* ) mconfig
:
1017 ( waklog_config
* ) ap_get_module_config(params
->server
->module_config
, &waklog_module
);
1019 cfg
->disable_token_cache
= flag
;
1021 cfg
->configured
= 1;
1023 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, params
->server
,
1024 "mod_waklog: waklog_disable_token_cache set");
1030 static void waklog_child_exit( server_rec
*s
, MK_POOL
*p
) {
1032 apr_status_t
waklog_child_exit( void *sr
) {
1034 server_rec
*s
= (server_rec
*) sr
;
1037 if ( child
.ccache
) {
1038 krb5_cc_close(child
.kcontext
, child
.ccache
);
1041 if ( child
.kcontext
) {
1042 krb5_free_context(child
.kcontext
);
1045 /* forget our tokens */
1047 ktc_ForgetAllTokens ();
1049 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, s
,
1050 "mod_waklog: waklog_child_exit complete");
1060 waklog_child_init (MK_POOL
* p
, server_rec
* s
)
1062 waklog_child_init (server_rec
* s
, MK_POOL
* p
)
1066 krb5_error_code code
;
1071 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: child_init called for pid %d", getpid());
1073 if ( !sharedspace
) {
1074 log_error( APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: child_init called without shared space? %d", getpid());
1078 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: child_init called for pid %d", getpid());
1080 memset (&child
, 0, sizeof(child
));
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
);
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
);
1090 if ( pag_for_children
) {
1094 getModConfig (cfg
, s
);
1096 if ( cfg
->default_principal
!= WAKLOG_UNSET
) {
1097 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: child_init setting default user %s, %s", cfg
->default_principal
, cfg
->default_keytab
);
1098 set_auth( s
, NULL
, 0, cfg
->default_principal
, cfg
->default_keytab
, 0);
1101 cell
= strdup(cfg
->afs_cell
);
1102 pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR
, cell
);
1105 apr_pool_cleanup_register(p
, s
, waklog_child_exit
, apr_pool_cleanup_null
);
1108 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, s
,
1109 "mod_waklog: child_init returned");
1114 command_rec waklog_cmds
[] = {
1116 command ("WaklogAFSCell", set_waklog_afs_cell
, 0, TAKE1
,
1117 "Use the supplied AFS cell (required)"),
1119 command ("WaklogAFSCellRealm", set_waklog_afs_cell_realm
, 0, TAKE1
,
1120 "Assume that the AFS cell belongs to the specified Kerberos realm (optional)"),
1122 command ("WaklogEnabled", set_waklog_enabled
, 0, FLAG
,
1123 "enable waklog on a server, location, or directory basis"),
1125 command ("WaklogDefaultPrincipal", set_waklog_default_principal
, 0, TAKE2
,
1126 "Set the default principal that the server runs as"),
1128 command ("WaklogLocationPrincipal", set_waklog_location_principal
, 0, TAKE2
,
1129 "Set the principal on a <Location>-specific basis"),
1131 command ("WaklogDisableTokenCache", set_waklog_disable_token_cache
, 0, FLAG
,
1132 "Ignore the token cache (location-specific); useful for scripts that need kerberos tickets."),
1134 command ("WaklogUseUserTokens", set_waklog_use_usertokens
, 0, FLAG
,
1135 "Use the requesting user tokens (from webauth)"),
1141 /* not currently using this */
1144 token_cleanup (void *data
)
1146 request_rec
*r
= (request_rec
*) data
;
1148 if (child
.token
.ticketLen
)
1150 memset (&child
.token
, 0, sizeof (struct ktc_token
));
1152 ktc_ForgetAllTokens ();
1154 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
,
1155 "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d",
1162 waklog_child_routine (void *data
, child_info
* pinfo
)
1165 server_rec
*s
= (server_rec
*) data
;
1166 krb5_error_code code
;
1168 time_t sleep_time
= ( TKT_LIFE
/ 2 ) ;
1173 getModConfig( cfg
, s
);
1175 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: waklog_child_routine started, running as %d", getuid());
1177 memset (&child
, 0, sizeof(child
));
1179 if ( ( code
= krb5_init_context(&child
.kcontext
) ) ) {
1180 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: can't init kerberos context %d", code
);
1183 if ( ( code
= krb5_cc_resolve(child
.kcontext
, "MEMORY:tmpcache", &child
.ccache
) ) ) {
1184 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: can't initialize in-memory credentials cache %d", code
);
1187 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: about to pr_Initialize");
1189 /* need to do this so we can make PTS calls */
1190 cell
= strdup(cfg
->afs_cell
); /* stupid */
1191 pr_Initialize( 0, AFSDIR_CLIENT_ETC_DIR
, cell
);
1193 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: still here");
1197 for ( i
= 0; i
< renewcount
; ++i
) {
1198 renewtable
[i
].lastrenewed
= time(0);
1199 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: (pid %d) renewing %s / %s", getpid(), renewtable
[i
].principal
,
1200 renewtable
[i
].keytab
);
1202 set_auth( s
, NULL
, 0, renewtable
[i
].principal
, renewtable
[i
].keytab
, 1 );
1204 /* if this is our default token, we want to "stash" it in our current PAG so the parent maintains readability of
1205 things that it needs to read */
1207 if ( cfg
&& cfg
->default_principal
&& ( ! strcmp(cfg
->default_principal
, renewtable
[i
].principal
) ) ) {
1208 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: renewing/setting default tokens" );
1209 set_auth( s
, NULL
, 0, renewtable
[i
].principal
, renewtable
[i
].keytab
, 0 );
1214 sharedspace
->renewcount
++;
1223 left
-= ( time(0) - when
);
1234 waklog_init_handler (apr_pool_t
* p
, apr_pool_t
* plog
,
1235 apr_pool_t
* ptemp
, server_rec
* s
)
1238 extern char *version
;
1243 int use_existing
= 1;
1245 char cache_file
[MAXNAMELEN
];
1247 pthread_rwlockattr_t rwlock_attr
;
1251 getModConfig (cfg
, s
);
1253 /* initialize_module() will be called twice, and if it's a DSO
1254 * then all static data from the first call will be lost. Only
1255 * set up our static data on the second call.
1256 * see http://issues.apache.org/bugzilla/show_bug.cgi?id=37519 */
1257 apr_pool_userdata_get (&data
, userdata_key
, s
->process
->pool
);
1260 if (cfg
->afs_cell
==NULL
) {
1261 log_error (APLOG_MARK
, APLOG_ERR
, 0, s
,
1262 "mod_waklog: afs_cell==NULL; please provide the WaklogAFSCell directive");
1263 /** clobber apache */
1269 apr_pool_userdata_set ((const void *) 1, userdata_key
,
1270 apr_pool_cleanup_null
, s
->process
->pool
);
1274 log_error (APLOG_MARK
, APLOG_INFO
, 0, s
,
1275 "mod_waklog: version %s initialized for cell %s", version
, cfg
->afs_cell
);
1277 if ( sharedspace
) {
1278 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: shared memory already allocated." );
1281 snprintf( cache_file
, MAXNAMELEN
, "/tmp/waklog_cache.%d", getpid() );
1283 if ( ( fd
= open( cache_file
, O_RDWR
, 0600 ) ) == -1 ) {
1285 if ( errno
== ENOENT
) {
1287 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: creating shared token cache file %s", cache_file
);
1289 if ( ( fd
= open( cache_file
, O_RDWR
|O_CREAT
|O_TRUNC
, 0600 ) ) == -1 ) {
1290 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file
, errno
);
1294 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file
, errno
);
1298 if ( use_existing
== 0 ) {
1299 struct sharedspace_s bob
;
1300 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: sizing our cache file %d to %d", fd
, sizeof(struct sharedspace_s
) );
1301 memset( &bob
, 0, sizeof(struct sharedspace_s
));
1302 write(fd
, &bob
, sizeof(struct sharedspace_s
));
1303 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s
) );
1306 /* mmap the region */
1308 if ( ( sharedspace
= (struct sharedspace_s
*) mmap ( NULL
, sizeof(struct sharedspace_s
), PROT_READ
|PROT_WRITE
, MAP_SHARED
, fd
, 0 ) ) != MAP_FAILED
) {
1309 log_error( APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: shared mmap region ok %d", sharedspace
);
1312 log_error( APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: mmap failed %d", errno
);
1318 #define locktype pthread_rwlock_t
1320 #define locktype rwlock_t
1323 if ( sharedlock
= ( locktype
* ) mmap ( NULL
, sizeof(locktype
), PROT_READ
|PROT_WRITE
, MAP_SHARED
|MAP_ANON
, -1, 0 ) ) {
1324 #ifndef use_pthreads
1325 rwlock_init(sharedlock
, USYNC_PROCESS
, NULL
);
1327 pthread_rwlockattr_init(&rwlock_attr
);
1328 pthread_rwlockattr_setpshared(&rwlock_attr
, PTHREAD_PROCESS_SHARED
);
1329 pthread_rwlock_init(sharedlock
, &rwlock_attr
);
1332 log_error( APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: rwlock mmap failed %d", errno
);
1337 /* set our default tokens */
1339 oldrenewcount
= sharedspace
->renewcount
;
1341 pag_for_children
= 0;
1343 proc
= (apr_proc_t
*) ap_pcalloc (s
->process
->pool
, sizeof (apr_proc_t
));
1345 rv
= apr_proc_fork (proc
, s
->process
->pool
);
1347 if (rv
== APR_INCHILD
)
1349 waklog_child_routine (s
, NULL
);
1353 apr_pool_note_subprocess (s
->process
->pool
, proc
, APR_KILL_ALWAYS
);
1355 /* parent and child */
1356 cfg
->forked
= proc
->pid
;
1357 pag_for_children
= 1;
1359 if ( use_existing
== 0 ) {
1360 /* wait here until our child process has gone and done it's renewing thing. */
1361 while( sharedspace
->renewcount
== oldrenewcount
) {
1362 log_error( APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: waiting for tokens..." );
1367 if ( cfg
->default_principal
) {
1368 set_auth( s
, NULL
, 0, cfg
->default_principal
, cfg
->default_keytab
, 0);
1375 waklog_init (server_rec
* s
, MK_POOL
* p
)
1377 extern char *version
;
1381 int use_existing
= 1;
1383 char cache_file
[MAXNAMELEN
];
1385 pthread_rwlockattr_t rwlock_attr
;
1388 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, s
,
1389 "mod_waklog: version %s initialized.", version
);
1391 if ( sharedspace
) {
1392 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: shared memory already allocated." );
1395 snprintf( cache_file
, MAXNAMELEN
, "/tmp/waklog_cache.%d", getpid() );
1397 if ( ( fd
= open( cache_file
, O_RDWR
, 0600 ) ) == -1 ) {
1399 if ( errno
== ENOENT
) {
1401 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: creating shared token cache file %s", cache_file
);
1403 if ( ( fd
= open( cache_file
, O_RDWR
|O_CREAT
|O_TRUNC
, 0600 ) ) == -1 ) {
1404 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: cannot create shared token cache file %s (%d)", cache_file
, errno
);
1408 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: cannot open existing shared token cache file %s (%d)", cache_file
, errno
);
1413 if ( use_existing
== 0 ) {
1414 struct sharedspace_s bob
;
1415 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: sizing our cache file %d to %d", fd
, sizeof(struct sharedspace_s
) );
1416 memset( &bob
, 0, sizeof(struct sharedspace_s
));
1417 write(fd
, &bob
, sizeof(struct sharedspace_s
));
1418 log_error(APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: done sizing our cache file to %d", sizeof(struct sharedspace_s
) );
1421 /* mmap the region */
1423 if ( ( sharedspace
= (struct sharedspace_s
*) mmap ( NULL
, sizeof(struct sharedspace_s
), PROT_READ
|PROT_WRITE
, MAP_SHARED
, fd
, 0 ) ) != (void *) -1 ) {
1424 log_error( APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: shared mmap region ok %d", sharedspace
);
1427 log_error( APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: mmap failed %d", errno
);
1433 #define locktype pthread_rwlock_t
1435 #define locktype rwlock_t
1438 /* mmap our shared space for our lock */
1439 if ( ( sharedlock
= ( locktype
* ) mmap ( NULL
, sizeof(locktype
), PROT_READ
|PROT_WRITE
, MAP_SHARED
|MAP_ANON
, -1, 0 ) ) ) {
1440 #ifndef use_pthreads
1441 rwlock_init(sharedlock
, USYNC_PROCESS
, NULL
);
1443 pthread_rwlockattr_init(&rwlock_attr
);
1444 pthread_rwlockattr_setpshared(&rwlock_attr
, PTHREAD_PROCESS_SHARED
);
1445 pthread_rwlock_init(sharedlock
, &rwlock_attr
);
1448 log_error( APLOG_MARK
, APLOG_DEBUG
, 0, s
, "mod_waklog: rwlock mmap failed %d", errno
);
1453 /* set our default tokens */
1455 getModConfig (cfg
, s
);
1457 oldrenewcount
= sharedspace
->renewcount
;
1459 pag_for_children
= 0;
1461 pid
= ap_bspawn_child (p
, waklog_child_routine
, s
, kill_always
,
1464 pag_for_children
= 1;
1466 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, s
,
1467 "mod_waklog: ap_bspawn_child: %d.", pid
);
1469 if ( use_existing
== 0 ) {
1470 /* wait here until our child process has gone and done it's renewing thing. */
1471 while( sharedspace
->renewcount
== oldrenewcount
) {
1472 log_error( APLOG_MARK
, APLOG_ERR
, 0, s
, "mod_waklog: waiting for tokens..." );
1477 if ( cfg
->default_principal
) {
1478 set_auth( s
, NULL
, 0, cfg
->default_principal
, cfg
->default_keytab
, 0);
1485 waklog_phase0 (request_rec
* r
)
1489 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
,
1490 "mod_waklog: phase0 called");
1492 cfg
= retrieve_config(r
);
1494 if ( cfg
->protect
&& cfg
->principal
) {
1495 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase0 using user %s", cfg
->principal
);
1496 set_auth(r
->server
, r
, 0, cfg
->principal
, cfg
->keytab
, 0);
1497 } else if ( cfg
->default_principal
) {
1498 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase0 using default user %s", cfg
->default_principal
);
1499 set_auth(r
->server
, r
, 0, cfg
->default_principal
, cfg
->default_keytab
, 0);
1502 if (child
.token
.ticketLen
) {
1503 memset( &child
.token
, 0, sizeof (struct ktc_token
) );
1504 ktc_ForgetAllTokens();
1507 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase0 not doing nothin.");
1514 waklog_phase1 (request_rec
* r
)
1518 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
,
1519 "mod_waklog: phase1 called");
1521 cfg
= retrieve_config(r
);
1523 if ( cfg
->protect
&& cfg
->principal
) {
1524 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase1 using user %s", cfg
->principal
);
1525 set_auth(r
->server
, r
, 0, cfg
->principal
, cfg
->keytab
, 0);
1526 } else if ( cfg
->default_principal
) {
1527 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase1 using default user %s", cfg
->default_principal
);
1528 set_auth(r
->server
, r
, 0, cfg
->default_principal
, cfg
->default_keytab
, 0);
1530 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase1 not doing nothin.");
1537 waklog_phase3 (request_rec
* r
)
1541 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
,
1542 "mod_waklog: phase 3 called");
1544 cfg
= retrieve_config(r
);
1546 if ( cfg
->protect
&& cfg
->principal
) {
1547 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase3 using user %s", cfg
->principal
);
1548 set_auth(r
->server
, r
, 0, cfg
->principal
, cfg
->keytab
, 0);
1549 } else if ( cfg
->default_principal
) {
1550 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase3 using default user %s", cfg
->default_principal
);
1551 set_auth(r
->server
, r
, 0, cfg
->default_principal
, cfg
->default_keytab
, 0);
1553 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase3 not doing nothin.");
1560 waklog_phase6 (request_rec
* r
)
1564 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
,
1565 "mod_waklog: phase6 called");
1567 cfg
= retrieve_config(r
);
1569 if ( cfg
->protect
&& cfg
->principal
) {
1570 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase6 using user %s", cfg
->principal
);
1571 set_auth(r
->server
, r
, 0, cfg
->principal
, cfg
->keytab
, 0);
1572 } else if ( cfg
->default_principal
) {
1573 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase6 using default user %s", cfg
->default_principal
);
1574 set_auth(r
->server
, r
, 0, cfg
->default_principal
, cfg
->default_keytab
, 0);
1576 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase6 not doing nothin.");
1583 waklog_phase7 (request_rec
* r
)
1588 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
,
1589 "mod_waklog: phase7 called");
1591 cfg
= retrieve_config (r
);
1593 if ( cfg
->protect
&& cfg
->usertokens
) {
1594 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase7 using usertokens");
1595 rc
= set_auth( r
->server
, r
, 1, NULL
, NULL
, 0);
1596 } else if ( cfg
->protect
&& cfg
->principal
) {
1597 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase7 using user %s", cfg
->principal
);
1598 rc
= set_auth( r
->server
, r
, 0, cfg
->principal
, cfg
->keytab
, 0);
1599 } else if ( cfg
->default_principal
) {
1600 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase7 using default user %s", cfg
->default_principal
);
1601 rc
= set_auth( r
->server
, r
, 0, cfg
->default_principal
, cfg
->default_keytab
, 0);
1603 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: no tokens");
1604 if (child
.token
.ticketLen
) {
1605 memset(&child
.token
, 0, sizeof(struct ktc_token
));
1606 ktc_ForgetAllTokens();
1618 waklog_phase9 (request_rec
* r
)
1622 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
,
1623 "mod_waklog: phase9 called");
1625 getModConfig (cfg
, r
->server
);
1627 if ( cfg
->default_principal
) {
1628 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
, "mod_waklog: phase9 using default user %s", cfg
->default_principal
);
1629 set_auth( r
->server
, r
, 0, cfg
->default_principal
, cfg
->default_keytab
, 0);
1642 waklog_new_connection (conn_rec
* c
1651 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, c
->base_server
,
1652 "mod_waklog: new_connection called: pid: %d", getpid ());
1654 getModConfig(cfg
, c
->base_server
);
1656 if ( cfg
->default_principal
) {
1657 log_error(APLOG_MARK
, APLOG_DEBUG
, 0, c
->base_server
, "mod_waklog: new conn setting default user %s",
1658 cfg
->default_principal
);
1659 set_auth( c
->base_server
, NULL
, 0, cfg
->default_principal
, cfg
->default_keytab
, 0);
1672 ** Here's a quick explaination for phase0 and phase2:
1673 ** Apache does a stat() on the path between phase0 and
1674 ** phase2, and must by ACLed rl to succeed. So, at
1675 ** phase0 we acquire credentials for umweb:servers from
1676 ** a keytab, and at phase2 we must ensure we remove them.
1678 ** Failure to "unlog" would be a security risk.
1681 waklog_phase2 (request_rec
* r
)
1684 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
,
1685 "mod_waklog: phase2 called");
1687 if (child
.token
.ticketLen
)
1689 memset (&child
.token
, 0, sizeof (struct ktc_token
));
1691 ktc_ForgetAllTokens ();
1693 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
,
1694 "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d",
1698 log_error (APLOG_MARK
, APLOG_DEBUG
, 0, r
->server
,
1699 "mod_waklog: phase2 returning");
1705 module MODULE_VAR_EXPORT waklog_module
= {
1706 STANDARD_MODULE_STUFF
,
1707 waklog_init
, /* module initializer */
1708 waklog_create_dir_config
, /* create per-dir config structures */
1709 waklog_merge_dir_config
, /* merge per-dir config structures */
1710 waklog_create_server_config
, /* create per-server config structures */
1711 waklog_merge_dir_config
, /* merge per-server config structures */
1712 waklog_cmds
, /* table of config file commands */
1713 NULL
, /* [#8] MIME-typed-dispatched handlers */
1714 waklog_phase1
, /* [#1] URI to filename translation */
1715 NULL
, /* [#4] validate user id from request */
1716 NULL
, /* [#5] check if the user is ok _here_ */
1717 waklog_phase3
, /* [#3] check access by host address */
1718 waklog_phase6
, /* [#6] determine MIME type */
1719 waklog_phase7
, /* [#7] pre-run fixups */
1720 waklog_phase9
, /* [#9] log a transaction */
1721 waklog_phase2
, /* [#2] header parser */
1722 waklog_child_init
, /* child_init */
1723 waklog_child_exit
, /* child_exit */
1724 waklog_phase0
/* [#0] post read-request */
1726 , NULL
, /* EAPI: add_module */
1727 NULL
, /* EAPI: remove_module */
1728 NULL
, /* EAPI: rewrite_command */
1729 waklog_new_connection
/* EAPI: new_connection */
1734 waklog_register_hooks (apr_pool_t
* p
)
1736 ap_hook_translate_name (waklog_phase1
, NULL
, NULL
, APR_HOOK_FIRST
);
1737 ap_hook_header_parser (waklog_phase2
, NULL
, NULL
, APR_HOOK_FIRST
);
1738 ap_hook_access_checker (waklog_phase3
, NULL
, NULL
, APR_HOOK_FIRST
);
1739 ap_hook_type_checker (waklog_phase6
, NULL
, NULL
, APR_HOOK_FIRST
);
1740 ap_hook_fixups (waklog_phase7
, NULL
, NULL
, APR_HOOK_FIRST
);
1741 ap_hook_log_transaction (waklog_phase9
, NULL
, NULL
, APR_HOOK_FIRST
);
1742 ap_hook_child_init (waklog_child_init
, NULL
, NULL
, APR_HOOK_FIRST
);
1743 ap_hook_post_read_request (waklog_phase0
, NULL
, NULL
, APR_HOOK_FIRST
);
1744 ap_hook_pre_connection (waklog_new_connection
, NULL
, NULL
, APR_HOOK_FIRST
);
1745 ap_hook_post_config (waklog_init_handler
, NULL
, NULL
, APR_HOOK_MIDDLE
);
1749 module AP_MODULE_DECLARE_DATA waklog_module
= {
1750 STANDARD20_MODULE_STUFF
,
1751 waklog_create_dir_config
, /* create per-dir conf structures */
1752 waklog_merge_dir_config
, /* merge per-dir conf structures */
1753 waklog_create_server_config
, /* create per-server conf structures */
1754 waklog_merge_dir_config
, /* merge per-server conf structures */
1755 waklog_cmds
, /* table of configuration directives */
1756 waklog_register_hooks
/* register hooks */