mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
351 lines
8.6 KiB
C
351 lines
8.6 KiB
C
/* search.c - /etc/passwd backend search function */
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/* $OpenLDAP$ */
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#include "portable.h"
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#include <stdio.h>
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#include <ac/ctype.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/time.h>
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#include <pwd.h>
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#include "slap.h"
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#include "back-passwd.h"
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#include <ldap_pvt.h>
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static void pw_start( Backend *be );
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static Entry *pw2entry(
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Backend *be,
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struct passwd *pw,
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const char **text);
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int
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passwd_back_search(
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Operation *op,
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SlapReply *rs )
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{
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struct passwd *pw;
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Entry *e;
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char *s;
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time_t stoptime;
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LDAPRDN rdn = NULL;
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struct berval parent = { 0, NULL };
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AttributeDescription *ad_objectClass = slap_schema.si_ad_objectClass;
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op->oq_search.rs_tlimit = (op->oq_search.rs_tlimit > op->o_bd->be_timelimit || op->oq_search.rs_tlimit < 1) ? op->o_bd->be_timelimit
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: op->oq_search.rs_tlimit;
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stoptime = op->o_time + op->oq_search.rs_tlimit;
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op->oq_search.rs_slimit = (op->oq_search.rs_slimit > op->o_bd->be_sizelimit || op->oq_search.rs_slimit < 1) ? op->o_bd->be_sizelimit
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: op->oq_search.rs_slimit;
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/* Handle a query for the base of this backend */
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if ( be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
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struct berval vals[2];
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vals[1].bv_val = NULL;
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rs->sr_matched = op->o_req_dn.bv_val;
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if( op->oq_search.rs_scope != LDAP_SCOPE_ONELEVEL ) {
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AttributeDescription *desc = NULL;
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/* Create an entry corresponding to the base DN */
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e = (Entry *) ch_calloc(1, sizeof(Entry));
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e->e_name.bv_val = ch_strdup( op->o_req_dn.bv_val );
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e->e_name.bv_len = op->o_req_dn.bv_len;
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e->e_nname.bv_val = ch_strdup( op->o_req_ndn.bv_val );
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e->e_nname.bv_len = op->o_req_ndn.bv_len;
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e->e_attrs = NULL;
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e->e_private = NULL;
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/* Use the first attribute of the DN
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* as an attribute within the entry itself.
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*/
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if( ldap_bv2rdn( &op->o_req_dn, &rdn, (char **)&rs->sr_text,
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LDAP_DN_FORMAT_LDAP ) )
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{
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rs->sr_err = LDAP_INVALID_DN_SYNTAX;
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goto done;
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}
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if( slap_bv2ad( &rdn[0]->la_attr, &desc, &rs->sr_text )) {
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rs->sr_err = LDAP_NO_SUCH_OBJECT;
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ldap_rdnfree(rdn);
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goto done;
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}
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vals[0] = rdn[0]->la_value;
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attr_mergeit( e, desc, vals );
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ldap_rdnfree(rdn);
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rdn = NULL;
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/* Every entry needs an objectclass. We don't really
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* know if our hardcoded choice here agrees with the
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* DN that was configured for this backend, but it's
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* better than nothing.
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*
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* should be a configuratable item
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*/
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vals[0].bv_val = "organizationalUnit";
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vals[0].bv_len = sizeof("organizationalUnit")-1;
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attr_mergeit( e, ad_objectClass, vals );
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if ( test_filter( op, e, op->oq_search.rs_filter ) == LDAP_COMPARE_TRUE ) {
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rs->sr_entry = e;
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rs->sr_attrs = op->oq_search.rs_attrs;
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send_search_entry( op, rs );
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}
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}
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if ( op->oq_search.rs_scope != LDAP_SCOPE_BASE ) {
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/* check all our "children" */
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ldap_pvt_thread_mutex_lock( &passwd_mutex );
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pw_start( op->o_bd );
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for ( pw = getpwent(); pw != NULL; pw = getpwent() ) {
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/* check for abandon */
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if ( op->o_abandon ) {
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endpwent();
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ldap_pvt_thread_mutex_unlock( &passwd_mutex );
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return( -1 );
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}
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/* check time limit */
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if ( slap_get_time() > stoptime ) {
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send_ldap_error( op, rs, LDAP_TIMELIMIT_EXCEEDED, NULL );
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endpwent();
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ldap_pvt_thread_mutex_unlock( &passwd_mutex );
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return( 0 );
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}
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if ( !(e = pw2entry( op->o_bd, pw, &rs->sr_text )) ) {
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rs->sr_err = LDAP_OTHER;
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endpwent();
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ldap_pvt_thread_mutex_unlock( &passwd_mutex );
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goto done;
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}
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if ( test_filter( op, e, op->oq_search.rs_filter ) == LDAP_COMPARE_TRUE ) {
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/* check size limit */
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if ( --op->oq_search.rs_slimit == -1 ) {
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send_ldap_error( op, rs, LDAP_SIZELIMIT_EXCEEDED, NULL );
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endpwent();
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ldap_pvt_thread_mutex_unlock( &passwd_mutex );
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return( 0 );
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}
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rs->sr_entry = e;
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rs->sr_attrs = op->oq_search.rs_attrs;
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send_search_entry( op, rs );
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}
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entry_free( e );
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}
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endpwent();
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ldap_pvt_thread_mutex_unlock( &passwd_mutex );
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}
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} else {
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if (! be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
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dnParent( &op->o_req_ndn, &parent );
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}
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/* This backend is only one layer deep. Don't answer requests for
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* anything deeper than that.
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*/
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if( !be_issuffix( op->o_bd, &parent ) ) {
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int i;
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for( i=0; op->o_bd->be_nsuffix[i].bv_val != NULL; i++ ) {
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if( dnIsSuffix( &op->o_req_ndn, &op->o_bd->be_nsuffix[i] ) ) {
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rs->sr_matched = op->o_bd->be_suffix[i].bv_val;
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break;
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}
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}
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rs->sr_err = LDAP_NO_SUCH_OBJECT;
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goto done;
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}
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if( op->oq_search.rs_scope == LDAP_SCOPE_ONELEVEL ) {
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goto done;
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}
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if ( ldap_bv2rdn( &op->o_req_dn, &rdn, (char **)&rs->sr_text,
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LDAP_DN_FORMAT_LDAP ))
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{
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rs->sr_err = LDAP_OTHER;
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goto done;
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}
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ldap_pvt_thread_mutex_lock( &passwd_mutex );
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pw_start( op->o_bd );
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if ( (pw = getpwnam( rdn[0]->la_value.bv_val )) == NULL ) {
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rs->sr_matched = parent.bv_val;
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rs->sr_err = LDAP_NO_SUCH_OBJECT;
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ldap_pvt_thread_mutex_unlock( &passwd_mutex );
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goto done;
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}
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e = pw2entry( op->o_bd, pw, &rs->sr_text );
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ldap_pvt_thread_mutex_unlock( &passwd_mutex );
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if ( !e ) {
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rs->sr_err = LDAP_OTHER;
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goto done;
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}
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if ( test_filter( op, e, op->oq_search.rs_filter ) == LDAP_COMPARE_TRUE ) {
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rs->sr_entry = e;
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rs->sr_attrs = op->oq_search.rs_attrs;
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send_search_entry( op, rs );
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}
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entry_free( e );
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}
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done:
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if( rs->sr_err != LDAP_NO_SUCH_OBJECT ) rs->sr_matched = NULL;
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send_ldap_result( op, rs );
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if( rdn != NULL ) ldap_rdnfree( rdn );
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return( 0 );
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}
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static void
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pw_start(
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Backend *be
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)
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{
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endpwent();
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#ifdef HAVE_SETPWFILE
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if ( be->be_private != NULL ) {
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(void) setpwfile( (char *) be->be_private );
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}
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#endif /* HAVE_SETPWFILE */
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}
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static Entry *
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pw2entry( Backend *be, struct passwd *pw, const char **text )
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{
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size_t pwlen;
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Entry *e;
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struct berval vals[2];
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struct berval bv;
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int rc;
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AttributeDescription *ad_objectClass = slap_schema.si_ad_objectClass;
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AttributeDescription *ad_cn = NULL;
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AttributeDescription *ad_sn = NULL;
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AttributeDescription *ad_uid = NULL;
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AttributeDescription *ad_description = NULL;
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rc = slap_str2ad( "cn", &ad_cn, text );
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if(rc != LDAP_SUCCESS) return NULL;
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rc = slap_str2ad( "sn", &ad_sn, text );
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if(rc != LDAP_SUCCESS) return NULL;
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rc = slap_str2ad( "uid", &ad_uid, text );
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if(rc != LDAP_SUCCESS) return NULL;
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rc = slap_str2ad( "description", &ad_description, text );
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if(rc != LDAP_SUCCESS) return NULL;
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/*
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* from pw we get pw_name and make it cn
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* give it an objectclass of person.
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*/
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pwlen = strlen( pw->pw_name );
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vals[0].bv_len = (sizeof("uid=,")-1) + ( pwlen + be->be_suffix[0].bv_len );
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vals[0].bv_val = ch_malloc( vals[0].bv_len + 1 );
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/* rdn attribute type should be a configuratable item */
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sprintf( vals[0].bv_val, "uid=%s,%s",
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pw->pw_name, be->be_suffix[0].bv_val );
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rc = dnNormalize( 0, NULL, NULL, vals, &bv );
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if( rc != LDAP_SUCCESS ) {
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free( vals[0].bv_val );
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return NULL;
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}
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e = (Entry *) ch_calloc( 1, sizeof(Entry) );
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e->e_name = vals[0];
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e->e_nname = bv;
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e->e_attrs = NULL;
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vals[1].bv_val = NULL;
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/* objectclasses should be configurable items */
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vals[0].bv_val = "top";
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vals[0].bv_len = sizeof("top")-1;
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attr_mergeit( e, ad_objectClass, vals );
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vals[0].bv_val = "person";
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vals[0].bv_len = sizeof("person")-1;
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attr_mergeit( e, ad_objectClass, vals );
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vals[0].bv_val = "uidObject";
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vals[0].bv_len = sizeof("uidObject")-1;
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attr_mergeit( e, ad_objectClass, vals );
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vals[0].bv_val = pw->pw_name;
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vals[0].bv_len = pwlen;
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attr_mergeit( e, ad_uid, vals ); /* required by uidObject */
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attr_mergeit( e, ad_cn, vals ); /* required by person */
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attr_mergeit( e, ad_sn, vals ); /* required by person */
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#ifdef HAVE_PW_GECOS
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/*
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* if gecos is present, add it as a cn. first process it
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* according to standard BSD usage. If the processed cn has
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* a space, use the tail as the surname.
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*/
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if (pw->pw_gecos[0]) {
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char *s;
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vals[0].bv_val = pw->pw_gecos;
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vals[0].bv_len = strlen(vals[0].bv_val);
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attr_mergeit(e, ad_description, vals);
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s = strchr(vals[0].bv_val, ',');
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if (s) *s = '\0';
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s = strchr(vals[0].bv_val, '&');
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if (s) {
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char buf[1024];
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if( vals[0].bv_len + pwlen < sizeof(buf) ) {
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int i = s - vals[0].bv_val;
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strncpy(buf, vals[0].bv_val, i);
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s = buf+i;
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strcpy(s, pw->pw_name);
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*s = TOUPPER((unsigned char)*s);
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strcat(s, vals[0].bv_val+i+1);
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vals[0].bv_val = buf;
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}
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}
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vals[0].bv_len = strlen(vals[0].bv_val);
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if ( vals[0].bv_len && strcasecmp( vals[0].bv_val, pw->pw_name )) {
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attr_mergeit( e, ad_cn, vals );
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}
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if ( (s=strrchr(vals[0].bv_val, ' '))) {
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vals[0].bv_val = s + 1;
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vals[0].bv_len = strlen(vals[0].bv_val);
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attr_mergeit(e, ad_sn, vals);
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}
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}
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#endif
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return( e );
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}
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