diff options
Diffstat (limited to 'contrib/slapd-modules/rbac/rbacaudit.c')
| -rw-r--r-- | contrib/slapd-modules/rbac/rbacaudit.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/contrib/slapd-modules/rbac/rbacaudit.c b/contrib/slapd-modules/rbac/rbacaudit.c new file mode 100644 index 0000000..ef04ece --- /dev/null +++ b/contrib/slapd-modules/rbac/rbacaudit.c @@ -0,0 +1,233 @@ +/* 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; +} |