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/* rbacaudit.c - RBAC Audit */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* ACKNOWLEDGEMENTS:
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include "slap.h"
#include "slap-config.h"
#include "lutil.h"
#include "rbac.h"
static struct rbac_audit_op {
audit_op_t op;
struct berval op_bv;
} rbac_audit_ops[] = {
{ CreateSession, BER_BVC("CreateSession") },
{ CheckAccess, BER_BVC("CheckAccess") },
{ AddActiveRole, BER_BVC("AddActiveRole") },
{ DropActiveRole, BER_BVC("DropActiveRole") },
{ SessionPermissions, BER_BVC("SessionPermissions") },
{ DeleteSession, BER_BVC("DeleteSession") },
{ SessionRoles, BER_BVC("SessionRoles") },
{ -1, BER_BVNULL }
};
static int
rbac_audit_fake_cb( Operation *op, SlapReply *rs )
{
Debug( LDAP_DEBUG_ANY, "rbac_audit_fake_cb\n" );
return 0;
}
void
rbac_audit(
Operation *op,
audit_op_t rbac_op,
rbac_session_t *sessp,
rbac_req_t *reqp,
int result,
char *msg )
{
int op_idx, rc = LDAP_SUCCESS;
int found = 0;
struct berval timestamp;
tenant_info_t *tenantp = rbac_tid2tenant( &sessp->tenantid );
slap_callback cb = { 0 };
SlapReply rs2 = { REP_RESULT };
Entry *e = NULL;
struct berval auditObjectClass = BER_BVC("rbacAudit");
struct berval auditResultSuccess = BER_BVC("success");
struct berval auditResultFailed = BER_BVC("failed");
struct berval bv, rdn, nrdn;
char rdnbuf[RBAC_BUFLEN];
time_t now;
char nowstr[LDAP_LUTIL_GENTIME_BUFSIZE];
for ( op_idx = 0; rbac_audit_ops[op_idx].op != -1; op_idx++ ) {
if ( rbac_op == rbac_audit_ops[op_idx].op ) {
/* legit audit op */
found = 1;
break;
}
}
if ( !found ) goto done;
e = entry_alloc();
/* audit timestamp */
now = slap_get_time(); /* stored for later consideration */
timestamp.bv_val = nowstr;
timestamp.bv_len = sizeof(nowstr);
slap_timestamp( &now, ×tamp );
/* construct audit record DN; FIXME: random() call */
sprintf( rdnbuf, "%s%d", RBAC_AUDIT_RDN_EQ, (int)op->o_tid );
strcat( rdnbuf, "-" );
strncat( rdnbuf, timestamp.bv_val, timestamp.bv_len );
bv.bv_val = &rdnbuf[0];
bv.bv_len = strlen( &rdnbuf[0] );
rc = dnPrettyNormal( NULL, &bv, &rdn, &nrdn, NULL );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_audit: "
"unable to normalize audit rDN (rc=%d)\n", rc );
goto done;
}
/* FIXME: audit_basedn should have been normalized */
build_new_dn( &e->e_name, &tenantp->audit_basedn, &rdn, NULL );
build_new_dn( &e->e_nname, &tenantp->audit_basedn, &nrdn, NULL );
ch_free( rdn.bv_val );
ch_free( nrdn.bv_val );
/* add timestamp */
attr_merge_one( e, slap_rbac_schema.ad_audit_timestamp, ×tamp, NULL );
/* add rbac audit objectClass */
attr_merge_one( e, slap_schema.si_ad_objectClass, &auditObjectClass, NULL );
attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
&auditObjectClass, NULL );
/* audit op */
attr_merge_one( e, slap_rbac_schema.ad_audit_op,
&rbac_audit_ops[op_idx].op_bv, NULL );
/* userid */
if ( sessp && !BER_BVISNULL( &sessp->uid ) ) {
attr_merge_one( e, slap_schema.si_ad_uid, &sessp->uid, NULL );
}
/* session id */
if ( sessp && !BER_BVISNULL( &sessp->sessid ) ) {
AttributeDescription *ad = NULL;
const char *text = NULL;
struct berval sessid = BER_BVC("rbacSessid");
rc = slap_bv2ad( &sessid, &ad, &text );
if ( rc != LDAP_SUCCESS ) {
goto done;
}
attr_merge_one( e, ad, &sessp->sessid, NULL );
}
/* audit result */
attr_merge_one( e, slap_rbac_schema.ad_audit_result,
result == LDAP_SUCCESS ? &auditResultSuccess : &auditResultFailed,
NULL );
switch ( rbac_op ) {
case CreateSession:
/* audit roles */
if ( sessp && sessp->roles ) {
attr_merge( e, slap_rbac_schema.ad_audit_roles, sessp->roles,
NULL );
}
if ( reqp && reqp->roles ) {
attr_merge( e, slap_rbac_schema.ad_audit_requested_roles,
reqp->roles, NULL );
}
break;
case CheckAccess:
if ( sessp && sessp->roles ) {
attr_merge( e, slap_rbac_schema.ad_audit_roles, sessp->roles,
NULL );
}
if ( reqp && !BER_BVISEMPTY( &reqp->opname ) ) {
attr_merge_one( e, slap_rbac_schema.ad_audit_operations,
&reqp->opname, NULL );
}
if ( reqp && !BER_BVISEMPTY( &reqp->objname ) ) {
attr_merge_one( e, slap_rbac_schema.ad_audit_objects,
&reqp->objname, NULL );
}
break;
case AddActiveRole:
if ( reqp && reqp->roles ) {
attr_merge( e, slap_rbac_schema.ad_audit_requested_roles,
reqp->roles, NULL );
}
break;
case DropActiveRole:
/* audit roles */
if ( reqp && reqp->roles ) {
attr_merge( e, slap_rbac_schema.ad_audit_requested_roles,
reqp->roles, NULL );
}
break;
case SessionPermissions:
if ( sessp && sessp->roles ) {
attr_merge( e, slap_rbac_schema.ad_audit_roles, sessp->roles,
NULL );
}
break;
case DeleteSession:
case SessionRoles:
default:
break;
}
/* record the audit record */
Operation op2 = *op;
rbac_callback_info_t rbac_cb;
cb.sc_private = &rbac_cb;
cb.sc_response = rbac_audit_fake_cb;
op2.o_callback = &cb;
op2.o_tag = LDAP_REQ_ADD;
op2.o_protocol = LDAP_VERSION3;
op2.o_req_dn = e->e_name;
op2.o_req_ndn = e->e_nname;
op2.ora_e = e;
op2.o_bd = select_backend( &op2.o_req_ndn, 0 );
op2.o_dn = op2.o_bd->be_rootdn;
op2.o_ndn = op2.o_bd->be_rootndn;
op2.ors_limit = NULL;
rc = op2.o_bd->be_add( &op2, &rs2 );
done:
if ( e ) entry_free( e );
return;
}
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