X-Git-Url: https://git.hcoop.net/hcoop/debian/libapache-mod-waklog.git/blobdiff_plain/403921efdf7e0bf0f79576a5d0c17219dcb42ef4..ff47641b008dd8b3790766679b0da266440fd96e:/mod_waklog.c diff --git a/mod_waklog.c b/mod_waklog.c index 1d65fbf..ee12824 100644 --- a/mod_waklog.c +++ b/mod_waklog.c @@ -1,84 +1,141 @@ +#define _LARGEFILE64_SOURCE +#define _GNU_SOURCE + #include "httpd.h" #include "http_config.h" -#include "http_conf_globals.h" #include "http_log.h" #include "http_protocol.h" #include "http_request.h" #include "http_core.h" + +#ifdef sun +#include +#elif linux +#define use_pthreads +#include +#include +#include +#include +#else +#error "make sure you include the right stuff here" +#endif + +#ifndef MAXNAMELEN +#define MAXNAMELEN 1024 +#endif + +#ifdef STANDARD20_MODULE_STUFF +#include +#include +#include +#include + +module AP_MODULE_DECLARE_DATA waklog_module; + +#include +#define MK_POOL apr_pool_t +#define MK_TABLE_GET apr_table_get +#define MK_TABLE_SET ap_table_set +#include "unixd.h" +extern unixd_config_rec unixd_config; +#define ap_user_id unixd_config.user_id +#define ap_group_id unixd_config.group_id +#define ap_user_name unixd_config.user_name +#define command(name, func, var, type, usage) \ + AP_INIT_ ## type (name, (void*) func, \ + (void*)APR_OFFSETOF(waklog_config, var), \ + OR_AUTHCFG | RSRC_CONF, usage) +typedef struct { + int dummy; +} child_info; + +const char *userdata_key = "waklog_init"; +#else #include "ap_config.h" + +module waklog_module; +#define MK_POOL pool +#define MK_TABLE_GET ap_table_get +#define command(name, func, var, type, usage) \ + { name, func, \ + (void*)XtOffsetOf(waklog_config, var), \ + OR_AUTHCFG | RSRC_CONF, type, usage } +#endif /* STANDARD20_MODULE_STUFF */ + +#define getModConfig(P, X) P = (waklog_host_config *) ap_get_module_config( (X)->module_config, &waklog_module ); + #include #if defined(sun) #include #endif /* sun */ #include -#include -#include #include #include #include -#include -#include +#define KEYTAB "/etc/keytab.wwwserver" +#define KEYTAB_PRINCIPAL "someplacewwwserver" +#define AFS_CELL "someplace.edu" -#define KEYTAB_PATH "/home/drh/keytab.umweb.drhtest" -#define PRINCIPAL "umweb/drhtest" +#define TKT_LIFE 10*60*60 +#define SLEEP_TIME TKT_LIFE - 5*60 +/* If there's an error, retry more aggressively */ +#define ERR_SLEEP_TIME 5*60 -#define K5PATH "FILE:/tmp/waklog.creds.k5" -#define K4PATH "/tmp/waklog.creds.k4" -module waklog_module; - -struct ClearToken { - long AuthHandle; - char HandShakeKey[ 8 ]; - long ViceId; - long BeginTimestamp; - long EndTimestamp; -}; +#define K5PATH "FILE:/tmp/waklog.creds.k5" typedef struct { + int forked; int configured; int protect; char *keytab; char *keytab_principal; char *afs_cell; + MK_POOL *p; } waklog_host_config; typedef struct { struct ktc_token token; } waklog_child_config; -waklog_child_config *child = NULL; - +waklog_child_config child; - static void * -waklog_create_dir_config( pool *p, char *path ) +static void +log_error(const char *file, int line, int level, int status, + const server_rec *s, const char *fmt, ...) { - waklog_host_config *cfg; + char errstr[1024]; + va_list ap; - cfg = (waklog_host_config *)ap_pcalloc( p, sizeof( waklog_host_config )); - cfg->configured = 0; - cfg->protect = 0; - cfg->keytab = 0; - cfg->keytab_principal = 0; - cfg->afs_cell = "umich.edu"; + va_start(ap, fmt); + vsnprintf(errstr, sizeof(errstr), fmt, ap); + va_end(ap); - return( cfg ); -} +#ifdef STANDARD20_MODULE_STUFF + ap_log_error(file, line, level | APLOG_NOERRNO, status, s, "%s", errstr); +#else + ap_log_error(file, line, level | APLOG_NOERRNO, s, "%s", errstr); +#endif +} static void * -waklog_create_server_config( pool *p, server_rec *s ) +waklog_create_server_config( MK_POOL *p, server_rec *s ) { waklog_host_config *cfg; cfg = (waklog_host_config *)ap_pcalloc( p, sizeof( waklog_host_config )); + cfg->p = p; + cfg->forked = 0; cfg->configured = 0; cfg->protect = 0; - cfg->keytab = 0; - cfg->keytab_principal = 0; - cfg->afs_cell = "umich.edu"; + cfg->keytab = KEYTAB; + cfg->keytab_principal = KEYTAB_PRINCIPAL; + cfg->afs_cell = AFS_CELL; + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, "mod_waklog: server config created." ); + return( cfg ); } @@ -88,170 +145,200 @@ set_waklog_protect( cmd_parms *params, void *mconfig, int flag ) { waklog_host_config *cfg; - if ( params->path == NULL ) { - cfg = (waklog_host_config *) ap_get_module_config( - params->server->module_config, &waklog_module ); - } else { - cfg = (waklog_host_config *)mconfig; - } + getModConfig(cfg, params->server ); cfg->protect = flag; cfg->configured = 1; + log_error( APLOG_MARK, APLOG_DEBUG, 0, params->server, "mod_waklog: waklog_protect set" ); return( NULL ); } static const char * -set_waklog_use_keytab( cmd_parms *params, void *mconfig, char *file ) +set_waklog_keytab( cmd_parms *params, void *mconfig, char *file ) { waklog_host_config *cfg; - if ( params->path == NULL ) { - cfg = (waklog_host_config *) ap_get_module_config( - params->server->module_config, &waklog_module ); - } else { - cfg = (waklog_host_config *)mconfig; - } + getModConfig(cfg, params->server ); - ap_log_error( APLOG_MARK, APLOG_INFO|APLOG_NOERRNO, params->server, - "mod_waklog: using keytab: %s", file ); + log_error( APLOG_MARK, APLOG_INFO, 0, params->server, + "mod_waklog: will use keytab: %s", file ); - cfg->keytab = file; + cfg->keytab = ap_pstrdup ( params->pool, file ); + cfg->configured = 1; + return( NULL ); +} + + + static const char * +set_waklog_use_keytab_principal( cmd_parms *params, void *mconfig, char *file ) +{ + waklog_host_config *cfg; + + getModConfig(cfg, params->server ); + + log_error( APLOG_MARK, APLOG_INFO, 0, params->server, + "mod_waklog: will use keytab_principal: %s", file ); + + cfg->keytab_principal = ap_pstrdup ( params->pool, file ); + cfg->configured = 1; + return( NULL ); +} + + + static const char * +set_waklog_use_afs_cell( cmd_parms *params, void *mconfig, char *file ) +{ + waklog_host_config *cfg; + + getModConfig(cfg, params->server ); + + log_error( APLOG_MARK, APLOG_INFO, 0, params->server, + "mod_waklog: will use afs_cell: %s", file ); + + cfg->afs_cell = ap_pstrdup( params->pool, file ); cfg->configured = 1; return( NULL ); } static void -waklog_child_init( server_rec *s, pool *p ) +#ifdef STANDARD20_MODULE_STUFF +waklog_child_init(MK_POOL *p, server_rec *s) +#else +waklog_child_init(server_rec *s, MK_POOL *p) +#endif { - if ( child == NULL ) { - child = (waklog_child_config *) ap_palloc( p, sizeof( waklog_child_config ) ); - } + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: child_init called" ); - memset( &child->token, 0, sizeof( struct ktc_token ) ); + memset( &child.token, 0, sizeof( struct ktc_token ) ); setpag(); + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: child_init returned" ); + return; } +typedef struct { + int wak_protect; + char *wak_keytab; + char *wak_ktprinc; + char *wak_afscell; +} waklog_config; command_rec waklog_cmds[ ] = { - { "WaklogProtected", set_waklog_protect, - NULL, RSRC_CONF | ACCESS_CONF, FLAG, - "enable waklog on a location or directory basis" }, + command("WaklogProtected", set_waklog_protect, wak_protect, FLAG, "enable waklog on a location or directory basis"), - { "WaklogUseKeytab", set_waklog_use_keytab, - NULL, RSRC_CONF, TAKE1, - "Use the supplied keytab file rather than the user's TGT" }, + command("WaklogKeytab", set_waklog_keytab, wak_keytab, TAKE1, "Use the supplied keytab rather than the default"), + + command("WaklogUseKeytabPrincipal", set_waklog_use_keytab_principal, wak_ktprinc, TAKE1, "Use the supplied keytab principal rather than the default"), + + command("WaklogUseAFSCell", set_waklog_use_afs_cell, wak_afscell, TAKE1, "Use the supplied AFS cell rather than the default"), { NULL } }; - static void + static int token_cleanup( void *data ) { request_rec *r = (request_rec *)data; - if ( child->token.ticketLen ) { - memset( &child->token, 0, sizeof( struct ktc_token ) ); + if ( child.token.ticketLen ) { + memset( &child.token, 0, sizeof( struct ktc_token ) ); ktc_ForgetAllTokens(); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: ktc_ForgetAllTokens succeeded" ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", getpid() ); } - return; + return 0; } static int waklog_kinit( server_rec *s ) { - krb5_error_code kerror; + krb5_error_code kerror = 0; krb5_context kcontext = NULL; krb5_principal kprinc = NULL; krb5_get_init_creds_opt kopts; krb5_creds v5creds; - CREDENTIALS v4creds; krb5_ccache kccache = NULL; krb5_keytab keytab = NULL; char ktbuf[ MAX_KEYTAB_NAME_LEN + 1 ]; - waklog_host_config *cfg; + int i; + waklog_host_config *cfg; + + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: waklog_kinit called: pid: %d", getpid() ); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, s, - "mod_waklog: waklog_kinit called" ); + getModConfig(cfg, s); if (( kerror = krb5_init_context( &kcontext ))) { - ap_log_error( APLOG_MARK, APLOG_ERR, s, - (char *)error_message( kerror )); + log_error( APLOG_MARK, APLOG_ERR, 0, s, + "mod_waklog: %s", (char *)error_message( kerror )); goto cleanup; } /* use the path */ if (( kerror = krb5_cc_resolve( kcontext, K5PATH, &kccache )) != 0 ) { - ap_log_error( APLOG_MARK, APLOG_ERR, s, - (char *)error_message( kerror )); + log_error( APLOG_MARK, APLOG_ERR, 0, s, + "mod_waklog: %s", (char *)error_message( kerror )); goto cleanup; } - if (( kerror = krb5_parse_name( kcontext, PRINCIPAL, &kprinc ))) { - ap_log_error( APLOG_MARK, APLOG_ERR, s, - (char *)error_message( kerror )); + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: keytab_principal: %s", cfg->keytab_principal ); + + if (( kerror = krb5_parse_name( kcontext, cfg->keytab_principal, &kprinc ))) { + log_error( APLOG_MARK, APLOG_ERR, 0, s, + "mod_waklog: %s", (char *)error_message( kerror )); goto cleanup; } krb5_get_init_creds_opt_init( &kopts ); - krb5_get_init_creds_opt_set_tkt_life( &kopts, 10*60*60 ); + krb5_get_init_creds_opt_set_tkt_life( &kopts, TKT_LIFE ); krb5_get_init_creds_opt_set_renew_life( &kopts, 0 ); krb5_get_init_creds_opt_set_forwardable( &kopts, 1 ); krb5_get_init_creds_opt_set_proxiable( &kopts, 0 ); - cfg = (waklog_host_config *) ap_get_module_config( s->module_config, - &waklog_module ); - - /* which keytab should we use? */ - strncpy( ktbuf, cfg->keytab ? cfg->keytab : KEYTAB_PATH, sizeof( ktbuf ) - 1 ); + /* keytab from config */ + strncpy( ktbuf, cfg->keytab, sizeof( ktbuf ) - 1 ); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, s, - "mod_waklog: waklog_kinit using: %s", ktbuf ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: waklog_kinit using: %s", ktbuf ); if (( kerror = krb5_kt_resolve( kcontext, ktbuf, &keytab )) != 0 ) { - ap_log_error( APLOG_MARK, APLOG_ERR, s, - (char *)error_message( kerror )); + log_error( APLOG_MARK, APLOG_ERR, 0, s, + "mod_waklog:krb5_kt_resolve %s", (char *)error_message( kerror )); goto cleanup; } + memset( (char *)&v5creds, 0, sizeof(v5creds)); + /* get the krbtgt */ if (( kerror = krb5_get_init_creds_keytab( kcontext, &v5creds, kprinc, keytab, 0, NULL, &kopts ))) { - ap_log_error( APLOG_MARK, APLOG_ERR, s, - (char *)error_message( kerror )); - - goto cleanup; - } - - if (( kerror = krb5_verify_init_creds( kcontext, &v5creds, - kprinc, keytab, NULL, NULL )) != 0 ) { - - ap_log_error( APLOG_MARK, APLOG_ERR, s, - (char *)error_message( kerror )); + log_error( APLOG_MARK, APLOG_ERR, 0, s, + "mod_waklog:krb5_get_init_creds_keytab %s", (char *)error_message( kerror )); goto cleanup; } if (( kerror = krb5_cc_initialize( kcontext, kccache, kprinc )) != 0 ) { - ap_log_error( APLOG_MARK, APLOG_ERR, s, - (char *)error_message( kerror )); + log_error( APLOG_MARK, APLOG_ERR, 0, s, + "mod_waklog:krb5_cc_initialize %s", (char *)error_message( kerror )); goto cleanup; } @@ -259,14 +346,14 @@ waklog_kinit( server_rec *s ) kerror = krb5_cc_store_cred( kcontext, kccache, &v5creds ); krb5_free_cred_contents( kcontext, &v5creds ); if ( kerror != 0 ) { - ap_log_error( APLOG_MARK, APLOG_ERR, s, - (char *)error_message( kerror )); + log_error( APLOG_MARK, APLOG_ERR, 0, s, + "mod_waklog: %s", (char *)error_message( kerror )); goto cleanup; } - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, s, - "mod_waklog: waklog_kinit success" ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: waklog_kinit success" ); cleanup: if ( keytab ) @@ -278,10 +365,10 @@ cleanup: if ( kcontext ) krb5_free_context( kcontext ); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, s, - "mod_waklog: waklog_kinit: exiting" ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: waklog_kinit: exiting" ); - return( 0 ); + return( kerror ); } @@ -289,29 +376,27 @@ cleanup: waklog_aklog( request_rec *r ) { int rc; - char buf[ 1024 ]; - const char *k4path = NULL; + char buf[ MAXKTCTICKETLEN ]; const char *k5path = NULL; krb5_error_code kerror; krb5_context kcontext = NULL; krb5_creds increds; krb5_creds *v5credsp = NULL; - CREDENTIALS v4creds; krb5_ccache kccache = NULL; struct ktc_principal server = { "afs", "", "" }; struct ktc_principal client; struct ktc_token token; waklog_host_config *cfg; + int buflen; - k5path = ap_table_get( r->subprocess_env, "KRB5CCNAME" ); - k4path = ap_table_get( r->subprocess_env, "KRBTKFILE" ); + k5path = MK_TABLE_GET( r->subprocess_env, "KRB5CCNAME" ); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: waklog_aklog called: k5path: %s, k4path: %s", k5path, k4path ); + log_error( APLOG_MARK, APLOG_INFO, 0, r->server, + "mod_waklog: waklog_aklog called: k5path: %s", k5path ); - if ( !k5path || !k4path ) { - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: waklog_aklog giving up" ); + if ( k5path == NULL ) { + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: waklog_aklog giving up" ); goto cleanup; } @@ -321,37 +406,34 @@ waklog_aklog( request_rec *r ) if (( kerror = krb5_init_context( &kcontext ))) { /* Authentication Required ( kerberos error ) */ - ap_log_error( APLOG_MARK, APLOG_ERR, r->server, - (char *)error_message( kerror )); - + log_error( APLOG_MARK, APLOG_ERR, 0, r->server, + (char *)error_message( kerror )); + goto cleanup; } - krb524_init_ets(kcontext); - memset( (char *)&increds, 0, sizeof(increds)); - cfg = (waklog_host_config *) ap_get_module_config( - r->server->module_config, &waklog_module ); + getModConfig(cfg, r->server ); /* afs/ or afs */ strncpy( buf, "afs", sizeof( buf ) - 1 ); - if ( strcmp( cfg->afs_cell, "umich.edu" ) ) { + if ( strcmp( cfg->afs_cell, AFS_CELL ) ) { strncat( buf, "/" , sizeof( buf ) - strlen( buf ) - 1 ); strncat( buf, cfg->afs_cell, sizeof( buf ) - strlen( buf ) - 1 ); } /* set server part */ if (( kerror = krb5_parse_name( kcontext, buf, &increds.server ))) { - ap_log_error( APLOG_MARK, APLOG_ERR, r->server, - (char *)error_message( kerror )); + log_error( APLOG_MARK, APLOG_ERR, 0, r->server, + (char *)error_message( kerror )); goto cleanup; } if (( kerror = krb5_cc_resolve( kcontext, k5path, &kccache )) != 0 ) { - ap_log_error( APLOG_MARK, APLOG_ERR, r->server, - (char *)error_message( kerror )); + log_error( APLOG_MARK, APLOG_ERR, 0, r->server, + (char *)error_message( kerror )); goto cleanup; } @@ -366,79 +448,82 @@ waklog_aklog( request_rec *r ) /* get the V5 credentials */ if (( kerror = krb5_get_credentials( kcontext, 0, kccache, &increds, &v5credsp ) ) ) { - ap_log_error( APLOG_MARK, APLOG_ERR, r->server, - "mod_waklog: krb5_get_credentials: %s", error_message( kerror )); + log_error( APLOG_MARK, APLOG_ERR, 0, r->server, + "mod_waklog: krb5_get_credentials: %s", error_message( kerror )); goto cleanup; } - /* get the V4 credentials */ - if (( kerror = krb524_convert_creds_kdc( kcontext, v5credsp, &v4creds ) ) ) { - ap_log_error( APLOG_MARK, APLOG_ERR, r->server, - "mod_waklog: krb524_convert_creds_kdc: %s", error_message( kerror )); + /* don't overflow */ + if ( v5credsp->ticket.length >= MAXKTCTICKETLEN ) { /* from krb524d.c */ + log_error( APLOG_MARK, APLOG_ERR, 0, r->server, + "mod_waklog: ticket size (%d) too big to fake", v5credsp->ticket.length ); goto cleanup; } /* assemble the token */ - token.kvno = v4creds.kvno; - token.startTime = v4creds.issue_date; + memset( &token, 0, sizeof( struct ktc_token ) ); + + token.startTime = v5credsp->times.starttime ? v5credsp->times.starttime : v5credsp->times.authtime; token.endTime = v5credsp->times.endtime; - memmove( &token.sessionKey, v4creds.session, 8 ); - token.ticketLen = v4creds.ticket_st.length ; - memmove( token.ticket, v4creds.ticket_st.dat, token.ticketLen ); + memmove( &token.sessionKey, v5credsp->keyblock.contents, v5credsp->keyblock.length ); + token.kvno = RXKAD_TKT_TYPE_KERBEROS_V5; + token.ticketLen = v5credsp->ticket.length; + memmove( token.ticket, v5credsp->ticket.data, token.ticketLen ); /* make sure we have to do this */ - if ( child->token.kvno != token.kvno || - child->token.ticketLen != token.ticketLen || - memcmp( &child->token.sessionKey, &token.sessionKey, - sizeof( token.sessionKey ) ) || - memcmp( child->token.ticket, token.ticket, token.ticketLen ) ) { - - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: %s.%s@%s", v4creds.service, v4creds.instance, - v4creds.realm ); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: %d %d %d", v4creds.lifetime, v4creds.kvno, - v4creds.issue_date ); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: %s %s", v4creds.pname, v4creds.pinst ); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: %d", v4creds.ticket_st.length ); + if ( child.token.kvno != token.kvno || + child.token.ticketLen != token.ticketLen || + (memcmp( &child.token.sessionKey, &token.sessionKey, + sizeof( token.sessionKey ) )) || + (memcmp( child.token.ticket, token.ticket, token.ticketLen )) ) { + + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: client: %s", buf ); /* build the name */ - strncpy( buf, v4creds.pname, sizeof( buf ) - 1 ); - if ( v4creds.pinst[ 0 ] ) { - strncat( buf, ".", sizeof( buf ) - strlen( buf ) - 1 ); - strncat( buf, v4creds.pinst, sizeof( buf ) - strlen( buf ) - 1 ); + memmove( buf, v5credsp->client->data[0].data, + min( v5credsp->client->data[0].length, MAXKTCNAMELEN - 1 ) ); + buf[ v5credsp->client->data[0].length ] = '\0'; + if ( v5credsp->client->length > 1 ) { + strncat( buf, ".", sizeof( buf ) - strlen( buf ) - 1 ); + buflen = strlen( buf ); + memmove( buf + buflen, v5credsp->client->data[1].data, + min( v5credsp->client->data[1].length, MAXKTCNAMELEN - strlen( buf ) - 1 ) ); + buf[ buflen + v5credsp->client->data[1].length ] = '\0'; } /* assemble the client */ strncpy( client.name, buf, sizeof( client.name ) - 1 ); strncpy( client.instance, "", sizeof( client.instance) - 1 ); - strncpy( client.cell, v4creds.realm, sizeof( client.cell ) - 1 ); + memmove( buf, v5credsp->client->realm.data, + min( v5credsp->client->realm.length, MAXKTCNAMELEN - 1 ) ); + buf[ v5credsp->client->realm.length ] = '\0'; + strncpy( client.cell, buf, sizeof( client.cell ) - 1 ); + /* assemble the server's cell */ strncpy( server.cell, cfg->afs_cell , sizeof( server.cell ) - 1 ); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: server: name=%s, instance=%s, cell=%s", - server.name, server.instance, server.cell ); - - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: client: name=%s, instance=%s, cell=%s", - client.name, client.instance, client.cell ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: server: name=%s, instance=%s, cell=%s", + server.name, server.instance, server.cell ); + + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: client: name=%s, instance=%s, cell=%s", + client.name, client.instance, client.cell ); /* use the path */ - krb_set_tkt_string( (char *)k4path ); /* rumor: we have to do this for AIX 4.1.4 with AFS 3.4+ */ write( 2, "", 0 ); if ( ( rc = ktc_SetToken( &server, &token, &client, 0 ) ) ) { - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: settoken returned %d", rc ); + log_error( APLOG_MARK, APLOG_ERR, 0, r->server, + "mod_waklog: settoken returned %d", rc ); + goto cleanup; } /* save this */ - memmove( &child->token, &token, sizeof( struct ktc_token ) ); + memmove( &child.token, &token, sizeof( struct ktc_token ) ); /* we'll need to unlog when this connection is done. */ ap_register_cleanup( r->pool, (void *)r, token_cleanup, ap_null_cleanup ); @@ -456,8 +541,8 @@ cleanup: if ( kcontext ) krb5_free_context( kcontext ); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: finished with waklog_aklog" ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: finished with waklog_aklog" ); return; @@ -467,76 +552,121 @@ cleanup: waklog_child_routine( void *s, child_info *pinfo ) { if ( !getuid() ) { - ap_log_error( APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, s, - "mod_waklog: waklog_child_routine called as root" ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: waklog_child_routine called as root" ); /* this was causing the credential file to get owned by root */ +#ifdef STANDARD20_MODULE_STUFF setgid(ap_group_id); setuid(ap_user_id); +#endif } while( 1 ) { waklog_kinit( s ); - sleep( 300 /* 10*60*60 - 5*60 */ ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: child_routine sleeping" ); + sleep( SLEEP_TIME ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: slept, calling waklog_kinit" ); } } +#ifdef STANDARD20_MODULE_STUFF +static int +waklog_init_handler(apr_pool_t *p, apr_pool_t *plog, + apr_pool_t *ptemp, server_rec *s) +{ + int rv; + extern char *version; + apr_proc_t *proc; + waklog_host_config *cfg; + void *data; + + getModConfig(cfg, s); + /* initialize_module() will be called twice, and if it's a DSO + * then all static data from the first call will be lost. Only + * set up our static data on the second call. + * see http://issues.apache.org/bugzilla/show_bug.cgi?id=37519 */ + apr_pool_userdata_get(&data, userdata_key, s->process->pool); + + if (!data) { + apr_pool_userdata_set((const void *)1, userdata_key, + apr_pool_cleanup_null, s->process->pool); + } else { + log_error( APLOG_MARK, APLOG_INFO, 0, s, + "mod_waklog: version %s initialized.", version ); + + proc = (apr_proc_t *)ap_pcalloc( s->process->pool, sizeof(apr_proc_t)); + + rv = apr_proc_fork(proc, s->process->pool); + + if (rv == APR_INCHILD) { + waklog_child_routine(s, NULL); + } else { + apr_pool_note_subprocess(s->process->pool, proc, APR_KILL_ALWAYS); + } + /* parent and child */ + cfg->forked = proc->pid; + } + return 0; +} +#else static void -waklog_init( server_rec *s, pool *p ) +waklog_init( server_rec *s, MK_POOL *p ) { extern char *version; int pid; - ap_log_error( APLOG_MARK, APLOG_INFO|APLOG_NOERRNO, s, - "mod_waklog: version %s initialized.", version ); + log_error( APLOG_MARK, APLOG_INFO, 0, s, + "mod_waklog: version %s initialized.", version ); pid = ap_bspawn_child( p, waklog_child_routine, s, kill_always, NULL, NULL, NULL ); - ap_log_error( APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, s, - "mod_waklog: ap_bspawn_child: %d.", pid ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, s, + "mod_waklog: ap_bspawn_child: %d.", pid ); } - +#endif static int waklog_phase0( request_rec *r ) { waklog_host_config *cfg; - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: phase0 called" ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase0 called" ); - /* directory config? */ - cfg = (waklog_host_config *)ap_get_module_config( - r->per_dir_config, &waklog_module); - - /* server config? */ - if ( !cfg->configured ) { - cfg = (waklog_host_config *)ap_get_module_config( - r->server->module_config, &waklog_module); - } + getModConfig(cfg, r->server ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase0, checking cfg->protect" ); if ( !cfg->protect ) { - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: phase0 declining" ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase0 declining" ); return( DECLINED ); } - /* do this only if we are still unauthenticated */ - if ( !child->token.ticketLen ) { - - /* set our environment variables */ - ap_table_set( r->subprocess_env, "KRB5CCNAME", K5PATH ); - ap_table_set( r->subprocess_env, "KRBTKFILE", K4PATH ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase0, NOT setting environment variable" ); + /* set our environment variable */ + apr_table_set( r->subprocess_env, "KRB5CCNAME", K5PATH ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase0, checking child.token.ticketLen" ); + /* do this only if we are still unauthenticated */ + if ( !child.token.ticketLen ) { + + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase0, calling waklog_aklog" ); /* stuff the credentials into the kernel */ waklog_aklog( r ); } - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: phase0 returning" ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase0 returning" ); return DECLINED; } @@ -546,43 +676,105 @@ waklog_phase7( request_rec *r ) { waklog_host_config *cfg; - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: phase7 called" ); - - /* directory config? */ - cfg = (waklog_host_config *)ap_get_module_config( - r->per_dir_config, &waklog_module); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase7 called" ); - /* server config? */ - if ( !cfg->configured ) { - cfg = (waklog_host_config *)ap_get_module_config( - r->server->module_config, &waklog_module); - } + getModConfig(cfg, r->server ); if ( !cfg->protect ) { return( DECLINED ); } /* stuff the credentials into the kernel */ + + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase7, calling waklog_aklog" ); waklog_aklog( r ); - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server, - "mod_waklog: phase7 returning" ); + log_error( APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase7 returning" ); return DECLINED; } - static void -waklog_new_connection( conn_rec *c ) { - ap_log_error( APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, c->server, - "mod_waklog: new_connection called: conn_rec: 0x%08x pid: %d", c, getpid() ); - return; + +static +#ifdef STANDARD20_MODULE_STUFF + int +#else + void +#endif +waklog_new_connection (conn_rec * c +#ifdef STANDARD20_MODULE_STUFF + , void *dummy +#endif + ) +{ + + waklog_config *cfg; + + log_error (APLOG_MARK, APLOG_DEBUG, 0, c->base_server, + "mod_waklog: new_connection called: pid: %d", getpid ()); + /* + getModConfig(cfg, c->base_server); + + if ( cfg->default_principal ) { + log_error(APLOG_MARK, APLOG_DEBUG, 0, c->base_server, "mod_waklog: new conn setting default user %s", + cfg->default_principal); + set_auth( c->base_server, NULL, 0, cfg->default_principal, cfg->default_keytab, 0); + } + */ + + return +#ifdef STANDARD20_MODULE_STUFF + 0 +#endif + ; } + +/* +** Here's a quick explaination for phase0 and phase2: +** Apache does a stat() on the path between phase0 and +** phase2, and must by ACLed rl to succeed. So, at +** phase0 we acquire credentials for umweb:servers from +** a keytab, and at phase2 we must ensure we remove them. +** +** Failure to "unlog" would be a security risk. +*/ +static int +waklog_phase2 (request_rec * r) +{ + + log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase2 called"); + + if (child.token.ticketLen) + { + memset (&child.token, 0, sizeof (struct ktc_token)); + + ktc_ForgetAllTokens (); + + log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: ktc_ForgetAllTokens succeeded: pid: %d", + getpid ()); + } + + log_error (APLOG_MARK, APLOG_DEBUG, 0, r->server, + "mod_waklog: phase2 returning"); + + return DECLINED; +} + +#ifndef STANDARD20_MODULE_STUFF module MODULE_VAR_EXPORT waklog_module = { STANDARD_MODULE_STUFF, - waklog_init, /* module initializer */ + waklog_init, /* module initializer */ +#if 0 waklog_create_dir_config, /* create per-dir config structures */ +#else /* 0 */ + NULL, /* create per-dir config structures */ +#endif /* 0 */ NULL, /* merge per-dir config structures */ waklog_create_server_config, /* create per-server config structures */ NULL, /* merge per-server config structures */ @@ -595,7 +787,7 @@ module MODULE_VAR_EXPORT waklog_module = { NULL, /* [#6] determine MIME type */ waklog_phase7, /* [#7] pre-run fixups */ NULL, /* [#9] log a transaction */ - NULL, /* [#2] header parser */ + waklog_phase2, /* [#2] header parser */ waklog_child_init, /* child_init */ NULL, /* child_exit */ waklog_phase0 /* [#0] post read-request */ @@ -606,3 +798,28 @@ module MODULE_VAR_EXPORT waklog_module = { waklog_new_connection /* EAPI: new_connection */ #endif }; +#else +static void +waklog_register_hooks (apr_pool_t * p) +{ + ap_hook_header_parser (waklog_phase2, NULL, NULL, APR_HOOK_FIRST); + ap_hook_fixups (waklog_phase7, NULL, NULL, APR_HOOK_FIRST); + ap_hook_child_init (waklog_child_init, NULL, NULL, APR_HOOK_FIRST); + ap_hook_post_read_request (waklog_phase0, NULL, NULL, APR_HOOK_FIRST); + ap_hook_pre_connection (waklog_new_connection, NULL, NULL, APR_HOOK_FIRST); + ap_hook_post_config (waklog_init_handler, NULL, NULL, APR_HOOK_MIDDLE); +} + + +module AP_MODULE_DECLARE_DATA waklog_module = +{ + STANDARD20_MODULE_STUFF, + NULL, /* create per-dir conf structures */ + NULL, /* merge per-dir conf structures */ + waklog_create_server_config, /* create per-server conf structures */ + NULL, /* merge per-server conf structures */ + waklog_cmds, /* table of configuration directives */ + waklog_register_hooks /* register hooks */ +}; +#endif +