upstream/openldap
1
0
Fork 0
mirror of https://git.openldap.org/openldap/openldap.git synced 2026-01-14 10:53:22 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions
openldap/contrib/slapd-modules/rbac/rbac.c
Quanah Gibson-Mount 073232bbc7 Happy New Year!
2024-03-26 19:45:07 +00:00

2169 lines
54 KiB
C
Raw Blame History

/* rbac.c - RBAC main file */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2013-2024 The OpenLDAP Foundation.
* 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"
#define RBAC_REQ 1
static slap_overinst rbac;
static struct berval slap_EXOP_CREATE_SESSION =
BER_BVC(LDAP_RBAC_EXOP_CREATE_SESSION);
static struct berval slap_EXOP_CHECK_ACCESS =
BER_BVC(LDAP_RBAC_EXOP_CHECK_ACCESS);
static struct berval slap_EXOP_ADD_ACTIVE_ROLE =
BER_BVC(LDAP_RBAC_EXOP_ADD_ACTIVE_ROLE);
static struct berval slap_EXOP_DROP_ACTIVE_ROLE =
BER_BVC(LDAP_RBAC_EXOP_DROP_ACTIVE_ROLE);
static struct berval slap_EXOP_DELETE_SESSION =
BER_BVC(LDAP_RBAC_EXOP_DELETE_SESSION);
static struct berval slap_EXOP_SESSION_ROLES =
BER_BVC(LDAP_RBAC_EXOP_SESSION_ROLES);
rbac_tenant_t rbac_tenants = {
{
.schema = &slap_rbac_jts_schema,
},
NULL
};
static ConfigDriver rbac_cf_gen;
static ConfigTable rbaccfg[] = {
{ "rbac-default-users-base-dn", "usersDN", 2, 2, 0,
ARG_MAGIC|ARG_DN|RBAC_DEFAULT_USERS_BASE_DN,
rbac_cf_gen,
"(OLcfgCtAt:7.1 NAME 'olcRBACDefaultUsersBaseDn' "
"DESC 'default Base DN for RBAC users ' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL
},
{ "rbac-default-roles-base-dn", "rolesDN", 2, 2, 0,
ARG_MAGIC|ARG_DN|RBAC_DEFAULT_ROLES_BASE_DN,
rbac_cf_gen,
"(OLcfgCtAt:7.2 NAME 'olcRBACDefaultRolesBaseDn' "
"DESC 'default base DN for RBAC roles ' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL
},
{ "rbac-default-permissions-base-dn", "permissionsDN", 2, 2, 0,
ARG_MAGIC|ARG_DN|RBAC_DEFAULT_PERMISSIONS_BASE_DN,
rbac_cf_gen,
"(OLcfgCtAt:7.3 NAME 'olcRBACDefaultPermissionsBaseDn' "
"DESC 'default base DN for RBAC permissions ' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL
},
{ "rbac-default-sessions-base-dn", "sessionsDN", 2, 2, 0,
ARG_MAGIC|ARG_DN|RBAC_DEFAULT_SESSIONS_BASE_DN,
rbac_cf_gen,
"(OLcfgCtAt:7.4 NAME 'olcRBACDefaultSessionsBaseDn' "
"DESC 'default base DN for RBAC permissions ' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL
},
{ "rbac-admin", "adminDN", 2, 2, 0,
ARG_MAGIC|ARG_DN|RBAC_ADMIN_DN,
rbac_cf_gen,
"(OLcfgCtAt:7.5 NAME 'olcRBACAdminDn' "
"DESC 'default admin DN for RBAC repository ' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL
},
{ "rbac-pwd", "adminPwd", 2, 2, 0,
ARG_MAGIC|RBAC_ADMIN_PWD,
rbac_cf_gen,
"(OLcfgCtAt:7.6 NAME 'olcRBACAdminPwd' "
"DESC 'default admin pwd for RBAC repository ' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL
},
{ "rbac-session-admin", "sessionAdminDN", 2, 2, 0,
ARG_MAGIC|ARG_DN|RBAC_SESSION_ADMIN_DN,
rbac_cf_gen,
"(OLcfgCtAt:7.7 NAME 'olcRBACSessionAdminDn' "
"DESC 'admin DN for RBAC session repository ' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL
},
{ "rbac-session-admin-pwd", "sessionAdminPwd", 2, 2, 0,
ARG_MAGIC|RBAC_SESSION_ADMIN_PWD,
rbac_cf_gen,
"(OLcfgCtAt:7.8 NAME 'olcRBACSessionAdminPwd' "
"DESC 'admin pwd for RBAC session repository ' "
"SYNTAX OMsDirectoryString SINGLE-VALUE )",
NULL, NULL
},
{ "tenant", "tenant", 2, 2, 0,
ARG_MAGIC|ARG_DN|RBAC_TENANT,
rbac_cf_gen, "(OLcfgCtAt:7.9 NAME 'olcRBACTenant' "
"DESC 'RBAC tenant ' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL
},
{ "rbac-default-audit-base-dn", "auditDN", 2, 2, 0,
ARG_MAGIC|ARG_DN|RBAC_DEFAULT_AUDIT_BASE_DN,
rbac_cf_gen,
"(OLcfgCtAt:7.10 NAME 'olcRBACDefaultAuditBaseDn' "
"DESC 'default base DN for RBAC audit records ' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL
},
{ "rbac-default-tenant-id", "tenantId", 2, 2, 0,
ARG_MAGIC|RBAC_DEFAULT_TENANT_ID,
rbac_cf_gen,
"(OLcfgCtAt:7.11 NAME 'olcRBACDefaultTenantId' "
"DESC 'default tenant id' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL
},
{ NULL, NULL, 0, 0, 0, ARG_IGNORED }
};
static ConfigOCs rbac_ocs[] = {
{ "( OLcfgCtOc:7.1 "
"NAME 'olcRBACConfig' "
"DESC 'RBAC configuration' "
"SUP olcOverlayConfig "
"MAY ( olcRBACDefaultUsersBaseDn $ olcRBACDefaultRolesBaseDn $ "
"olcRBACDefaultPermissionsBaseDn $ olcRBACDefaultSessionsBaseDn $ "
"olcRBACAdminDn $ olcRBACAdminPwd $ olcRBACSessionAdminDn $ "
"olcRBACSessionAdminPwd) )",
Cft_Overlay, rbaccfg },
{ NULL, 0, NULL }
};
static slap_verbmasks rbac_keys[] = {
{ BER_BVC("default_users_base_dn"), RBAC_DEFAULT_USERS_BASE_DN },
{ BER_BVC("default_roles_base_dn"), RBAC_DEFAULT_ROLES_BASE_DN },
{ BER_BVC("default_permissions_base_dn"),
RBAC_DEFAULT_PERMISSIONS_BASE_DN },
{ BER_BVC("tenant"), RBAC_TENANT },
{ BER_BVNULL, 0 }
};
static slap_verbmasks rbac_tenant_keys[] = {
{ BER_BVC("id"), RBAC_TENANT_ID },
{ BER_BVC("users_base_dn"), RBAC_USERS_BASE_DN },
{ BER_BVC("roles_base_dn"), RBAC_ROLES_BASE_DN },
{ BER_BVC("permissions_base_dn"), RBAC_PERMISSIONS_BASE_DN },
{ BER_BVNULL, 0 }
};
static void
rbac_tenant_parse( char *tenent_info, tenant_info_t *tenants )
{
return;
}
static int
rbac_cf_gen( ConfigArgs *c )
{
slap_overinst *on = (slap_overinst *)c->bi;
rbac_tenant_t *ri = &rbac_tenants;
int rc = 0;
if ( c->op == SLAP_CONFIG_EMIT ) {
switch ( c->type ) {
case RBAC_DEFAULT_USERS_BASE_DN:
value_add_one( &c->rvalue_vals, &ri->tenant_info.users_basedn );
break;
case RBAC_DEFAULT_ROLES_BASE_DN:
value_add_one( &c->rvalue_vals, &ri->tenant_info.roles_basedn );
break;
case RBAC_DEFAULT_PERMISSIONS_BASE_DN:
value_add_one(
&c->rvalue_vals, &ri->tenant_info.permissions_basedn );
break;
case RBAC_DEFAULT_SESSIONS_BASE_DN:
value_add_one(
&c->rvalue_vals, &ri->tenant_info.sessions_basedn );
break;
case RBAC_DEFAULT_AUDIT_BASE_DN:
value_add_one( &c->rvalue_vals, &ri->tenant_info.audit_basedn );
break;
case RBAC_ADMIN_DN:
value_add_one( &c->rvalue_vals, &ri->tenant_info.admin );
break;
case RBAC_ADMIN_PWD:
value_add_one( &c->rvalue_vals, &ri->tenant_info.pwd );
break;
case RBAC_SESSION_ADMIN_DN:
value_add_one(
&c->rvalue_vals, &ri->tenant_info.session_admin );
break;
case RBAC_DEFAULT_TENANT_ID:
value_add_one( &c->rvalue_vals, &ri->tenant_info.tid );
break;
default:
break;
}
return rc;
} else if ( c->op == LDAP_MOD_DELETE ) {
/* FIXME */
return 1;
}
switch ( c->type ) {
case RBAC_DEFAULT_USERS_BASE_DN: {
struct berval dn = BER_BVNULL;
ber_str2bv( c->argv[1], 0, 0, &dn );
rc = dnNormalize(
0, NULL, NULL, &dn, &ri->tenant_info.users_basedn, NULL );
break;
}
case RBAC_DEFAULT_ROLES_BASE_DN: {
ber_str2bv( c->argv[1], 0, 1, &ri->tenant_info.roles_basedn );
break;
}
case RBAC_DEFAULT_PERMISSIONS_BASE_DN: {
ber_str2bv( c->argv[1], 0, 1, &ri->tenant_info.permissions_basedn );
break;
}
case RBAC_DEFAULT_SESSIONS_BASE_DN: {
ber_str2bv( c->argv[1], 0, 1, &ri->tenant_info.sessions_basedn );
break;
}
case RBAC_DEFAULT_AUDIT_BASE_DN: {
ber_str2bv( c->argv[1], 0, 1, &ri->tenant_info.audit_basedn );
break;
}
case RBAC_ADMIN_DN: {
ber_str2bv( c->argv[1], 0, 1, &ri->tenant_info.admin );
break;
}
case RBAC_ADMIN_PWD: {
ber_str2bv( c->argv[1], 0, 1, &ri->tenant_info.pwd );
break;
}
case RBAC_SESSION_ADMIN_DN: {
ber_str2bv( c->argv[1], 0, 1, &ri->tenant_info.session_admin );
break;
}
case RBAC_SESSION_ADMIN_PWD: {
ber_str2bv( c->argv[1], 0, 1, &ri->tenant_info.session_admin_pwd );
break;
}
case RBAC_DEFAULT_TENANT_ID: {
ber_str2bv( c->argv[1], 0, 1, &ri->tenant_info.tid );
break;
}
case RBAC_TENANT: {
rbac_tenant_parse( c->argv[1], &ri->tenant_info );
break;
}
default:
break;
}
return rc;
}
/*
* rbac configuration
*/
tenant_info_t *
rbac_tid2tenant( struct berval *tid )
{
/* return the only tenant for now */
return &rbac_tenants.tenant_info;
}
//{ BER_BVC(LDAP_RBAC_EXOP_SESSION_ROLES), rbac_session_roles },
static int
slap_parse_rbac_session_roles(
struct berval *in,
rbac_req_t **reqpp,
const char **text,
void *ctx )
{
int rc = LDAP_SUCCESS;
struct berval reqdata = BER_BVNULL;
rbac_req_t *reqp = NULL;
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
ber_tag_t tag;
ber_len_t len = -1;
*text = NULL;
if ( in == NULL || in->bv_len == 0 ) {
*text = "empty request data field in rbac_session_roles exop";
return LDAP_PROTOCOL_ERROR;
}
reqp = rbac_alloc_req( RBAC_REQ_SESSION_ROLES );
if ( !reqp ) {
*text = "unable to allocate memory for rbac_session_roles exop";
return LDAP_PROTOCOL_ERROR;
}
ber_dupbv_x( &reqdata, in, ctx );
/* ber_init2 uses reqdata directly, doesn't allocate new buffers */
ber_init2( ber, &reqdata, 0 );
tag = ber_scanf( ber, "{" /*}*/ );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_session_roles: "
"decoding error.\n" );
goto decoding_error;
}
tag = ber_peek_tag( ber, &len );
if ( tag == LDAP_TAG_EXOP_RBAC_USER_ID_SESS ) {
struct berval uid;
tag = ber_scanf( ber, "m", &uid );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_session_roles: "
"user id parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->uid, &uid, ctx );
tag = ber_peek_tag( ber, &len );
}
//tag = ber_peek_tag( ber, &len );
if ( tag == LDAP_TAG_EXOP_RBAC_SESSION_ID_SESS ) {
struct berval sessid;
tag = ber_scanf( ber, "m", &sessid );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_session_roles: "
"session id parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->sessid, &sessid, ctx );
tag = ber_peek_tag( ber, &len );
}
if ( tag != LBER_DEFAULT || len != 0 ) {
decoding_error:;
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_session_roles: "
"decoding error, len=%ld\n",
(long)len );
rc = LDAP_PROTOCOL_ERROR;
*text = "data decoding error";
}
if ( rc == LDAP_SUCCESS ) {
*reqpp = reqp;
} else {
rbac_free_req( reqp );
*reqpp = NULL;
}
if ( !BER_BVISNULL( &reqdata ) ) {
ber_memfree_x( reqdata.bv_val, ctx );
}
return rc;
}
static int
rbac_session_roles( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
const struct berval rbac_op = BER_BVC("SessionRoles");
rbac_req_t *reqp = NULL;
rbac_session_t *sessp;
int rc;
rs->sr_err = slap_parse_rbac_session_roles(
op->ore_reqdata, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
/* get the session using the session id */
sessp = rbac_session_byid( op, reqp );
if ( !sessp ) {
Debug( LDAP_DEBUG_ANY, "rbac_session_roles: "
"session not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/* checking whether the session is owned by the user */
if ( !rbac_is_session_owner( sessp, reqp ) ) {
Debug( LDAP_DEBUG_ANY, "rbac_session_roles: "
"session not owned by user\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
rc = rbac_int_delete_session( op, sessp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_session_roles: "
"unable to delete session\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/*
* If we wanted to...
* load these roles into a response with a sequence nested within a
* sequence: (No, we're not actually doing this here.)
* 0x30 LL ber_printf( ber, "{" );
* 0x04 L1
* 0x04 L2 a b c d
* 0x04 L3 e f g h
* 0x04 L4 i j k l
* add all three ber_bvarray_add_x( &roles, &tmpbv, NULL );
* close it ber_printf( ber, "t{W}", LDAP_TAG_EXOP_RBAC_ROLES, roles );
*/
/*
* Instead we are...
* loading these roles into the response within a sequence: (Yes, we are doing this here.)
* 0x30 LL ber_printf( ber, "{" );
* 0x04 L1 a b c d
* 0x04 L2 e f g h
* 0x04 L3 i j k l
* add all three ber_bvarray_add_x( &roles, &tmpbv, NULL );
* close it ber_printf( ber, "tW", LDAP_TAG_EXOP_RBAC_ROLES, roles );
*/
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
ber_init_w_nullc( ber, LBER_USE_DER );
BerVarray roles = NULL;
if ( sessp->roles ) {
struct berval tmpbv;
// open the sequence:
ber_printf( ber, "{" /*}*/ );
//char *role;
int i = 0;
//BerVarray roles = NULL;
for ( i = 0; !BER_BVISNULL( &sessp->roles[i] ); i++ ) {
tmpbv.bv_val = sessp->roles[i].bv_val;
tmpbv.bv_len = sessp->roles[i].bv_len;
// add role name:
ber_bvarray_add_x( &roles, &tmpbv, NULL );
//LBER_F( int )
//ber_bvecadd_x LDAP_P(( struct berval ***bvec,
// struct berval *bv, void *ctx ));
// first attempt at sequence within a sequence...
// open another sequence:
/*
ber_printf( ber, "{" } );
// add role name (again):
ber_bvarray_add_x(&roles, &tmpbv, NULL);
// close the nested sequence:
ber_printf( ber, { "}" );
*/
// end 2nd sequence
}
/*
* This is how we add several octet strings at one time. An array of struct berval's is supplied.
* The array is terminated by a struct berval with a NULL bv_val.
* Note that a construct like '{W}' is required to get an actual SEQUENCE OF octet strings.
* But here we are using 'tW' which allows passing a collection of octets w/out a nesting within a sequence.
*/
ber_printf( ber, "tW",
LDAP_TAG_EXOP_RBAC_ROLES, roles);
// TODO: determine why free on roles array causes a seg fault:
//ber_bvarray_free_x(roles, NULL);
// close the sequence:
ber_printf( ber, /*{*/ "N}" );
}
if ( rc < 0 ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
} else {
(void)ber_flatten( ber, &rs->sr_rspdata );
rs->sr_err = LDAP_SUCCESS;
}
ber_free_buf( ber );
// END LOAD ROLES INTO RESPONSE
done:;
rs->sr_err = rc;
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_SESSION_ROLES.bv_val );
/* generate audit log */
rbac_audit(
op, SessionRoles, sessp, reqp, rs->sr_err, (char *)rs->sr_text );
rbac_free_session( sessp );
rbac_free_req( reqp );
return rs->sr_err;
}
static int
rbac_session_rolesx( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
const struct berval rbac_op = BER_BVC("SessionRoles");
rbac_session_t *sessp = NULL;
rbac_req_t *reqp = NULL;
int rc;
rs->sr_err = slap_parse_rbac_session_roles(
op->ore_reqdata, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
/* get the session using the session id */
sessp = rbac_session_byid( op, reqp );
if ( !sessp ) {
Debug( LDAP_DEBUG_ANY, "rbac_session_roles: "
"session not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/* checking whether the session is owned by the user */
if ( !rbac_is_session_owner( sessp, reqp ) ) {
Debug( LDAP_DEBUG_ANY, "rbac_session_roles: "
"session not owned by user\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
rc = rbac_int_delete_session( op, sessp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_session_roles: "
"unable to delete session\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/*
* If we wanted to...
* load these roles into a response with a sequence nested within a
* sequence: (No, we're not actually doing this here.)
* 0x30 LL ber_printf( ber, "{" );
* 0x04 L1
* 0x04 L2 a b c d
* 0x04 L3 e f g h
* 0x04 L4 i j k l
* add all three ber_bvarray_add_x( &roles, &tmpbv, NULL );
* close it ber_printf( ber, "t{W}", LDAP_TAG_EXOP_RBAC_ROLES, roles );
*/
/*
* Instead we are...
* loading these roles into the response within a sequence: (Yes, we are doing this here.)
* 0x30 LL ber_printf( ber, "{" );
* 0x04 L1 a b c d
* 0x04 L2 e f g h
* 0x04 L3 i j k l
* add all three ber_bvarray_add_x( &roles, &tmpbv, NULL );
* close it ber_printf( ber, "tW", LDAP_TAG_EXOP_RBAC_ROLES, roles );
*/
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
ber_init_w_nullc( ber, LBER_USE_DER );
BerVarray roles = NULL;
if ( sessp->roles ) {
struct berval tmpbv;
// open the sequence:
ber_printf( ber, "{" /*}*/ );
//char *role;
int i = 0;
//BerVarray roles = NULL;
for ( i = 0; !BER_BVISNULL( &sessp->roles[i] ); i++ ) {
tmpbv.bv_val = sessp->roles[i].bv_val;
tmpbv.bv_len = sessp->roles[i].bv_len;
// add role name:
ber_bvarray_add_x( &roles, &tmpbv, NULL );
// first attempt at sequence within a sequence...
// open another sequence:
/*
ber_printf( ber, "{" } );
// add role name (again):
ber_bvarray_add_x(&roles, &tmpbv, NULL);
// close the nested sequence:
ber_printf( ber, { "}" );
*/
// end 2nd sequence
}
/*
* This is how we add several octet strings at one time. An array of struct berval's is supplied.
* The array is terminated by a struct berval with a NULL bv_val.
* Note that a construct like '{W}' is required to get an actual SEQUENCE OF octet strings.
* But here we are using 'tW' which allows passing a collection of octets w/out a nesting within a sequence.
*/
ber_printf( ber, "tW",
LDAP_TAG_EXOP_RBAC_ROLES, roles);
// TODO: determine why free on roles array causes a seg fault:
//ber_bvarray_free_x(roles, NULL);
// close the sequence:
ber_printf( ber, /*{*/ "N}" );
}
if ( rc < 0 ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
} else {
(void)ber_flatten( ber, &rs->sr_rspdata );
rs->sr_err = LDAP_SUCCESS;
}
ber_free_buf( ber );
// END LOAD ROLES INTO RESPONSE
done:;
rs->sr_err = rc;
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_SESSION_ROLES.bv_val );
/* generate audit log */
rbac_audit(
op, SessionRoles, sessp, reqp, rs->sr_err, (char *)rs->sr_text );
rbac_free_session( sessp );
rbac_free_req( reqp );
return rs->sr_err;
}
/*
* slap_parse_rbac_create_session
*/
static int
slap_parse_rbac_create_session(
struct berval *in,
rbac_req_t **reqpp,
const char **text,
void *ctx )
{
int rc = LDAP_SUCCESS;
struct berval reqdata = BER_BVNULL;
rbac_req_t *reqp = NULL;
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
ber_tag_t tag;
ber_len_t len = -1;
*text = NULL;
if ( in == NULL || in->bv_len == 0 ) {
*text = "empty request data field in rbac_create_session exop";
return LDAP_PROTOCOL_ERROR;
}
reqp = rbac_alloc_req( RBAC_REQ_CREATE_SESSION );
if ( !reqp ) {
*text = "unable to allocate memory for bac_create_session exop";
return LDAP_PROTOCOL_ERROR;
}
ber_dupbv_x( &reqdata, in, ctx );
/* ber_init2 uses reqdata directly, doesn't allocate new buffers */
ber_init2( ber, &reqdata, 0 );
tag = ber_scanf( ber, "{" /*}*/ );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_create_session: "
"decoding error.\n" );
goto decoding_error;
}
// Order: 1. sessionId, 2. tenantId, 3. userId, 4. password and 5. roles
/* must-have */
tag = ber_peek_tag( ber, &len );
// 1. SESSIONID
if ( tag == LDAP_TAG_EXOP_RBAC_SESSION_ID ) {
struct berval bv;
tag = ber_scanf( ber, "m", &bv );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_create_session: "
"session id parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->sessid, &bv, ctx );
tag = ber_peek_tag( ber, &len );
}
// 2. TENANT ID
if ( tag == LDAP_TAG_EXOP_RBAC_TENANT_ID ) {
struct berval bv;
tag = ber_scanf( ber, "m", &bv );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_create_session: "
"tenant id parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->tenantid, &bv, ctx );
tag = ber_peek_tag( ber, &len );
}
// 3. USERID
if ( tag == LDAP_TAG_EXOP_RBAC_USER_ID ) {
struct berval bv;
tag = ber_scanf( ber, "m", &bv );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_create_session: "
"user id parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->uid, &bv, ctx );
tag = ber_peek_tag( ber, &len );
}
// 4. PASSWORD
if ( tag == LDAP_TAG_EXOP_RBAC_AUTHTOK ) {
struct berval bv;
tag = ber_scanf( ber, "m", &bv);
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_create_session: "
"authtok parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->authtok, &bv, ctx );
tag = ber_peek_tag( ber, &len );
}
// 5. ROLES
if ( tag == LDAP_TAG_EXOP_RBAC_ACTIVE_ROLE ) {
tag = ber_scanf( ber, "W", &reqp->roles);
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_create_session: "
"role parse failed.\n" );
goto decoding_error;
}
tag = ber_peek_tag( ber, &len );
}
if ( tag != LBER_DEFAULT || len != 0 ) {
decoding_error:;
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_create_session: "
"decoding error, len=%ld\n",
(long)len );
rc = LDAP_PROTOCOL_ERROR;
*text = "data decoding error";
}
if ( rc == LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "slap_parse_rbac_create_session: "
"SUCCESS\n" );
*reqpp = reqp;
} else {
Debug( LDAP_DEBUG_ANY, "slap_parse_rbac_create_session: "
"NO SUCCESS RC=%d\n", rc );
rbac_free_req( reqp );
*reqpp = NULL;
}
if ( !BER_BVISNULL( &reqdata ) ) {
ber_memfree_x( reqdata.bv_val, ctx );
}
return rc;
}
/*
* rbac_create_session:
* 1. authenticate user
* 2. evaluate pwd policy
* 3. create session
*/
static int
rbac_create_session( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
struct berval rbac_op = BER_BVC("CreateSession");
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
int rc = LDAP_SUCCESS;
rbac_session_t *sessp = NULL;
rbac_user_t *userp = NULL;
rbac_req_t *reqp = NULL;
rs->sr_err = slap_parse_rbac_create_session(
op->ore_reqdata, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
/* read user entry */
userp = rbac_read_user( op, reqp );
if ( !userp ) {
Debug( LDAP_DEBUG_ANY, "rbac_create_session: "
"unable to read user entry\n" );
rs->sr_err = LDAP_NO_SUCH_OBJECT;
rs->sr_text = "rbac_create_session: unable to read user entry";
goto done;
}
if ( !BER_BVISNULL( &userp->password ) ) {
/* if request is with pwd, authenticate the user */
rc = rbac_authenticate_user( op, userp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_create_session: "
"rbac_authenticate_user failed!\n" );
rs->sr_err = LDAP_INVALID_CREDENTIALS;
rs->sr_text = "rbac_create_session: invalid credential";
goto done;
}
/*
rbac_user_t *ui = op->o_callback->sc_private;
int pVal = ui->authz;
printf("password reset val=%d", pVal );
*/
} else {
/* no pwd is provided, check whether the requesting session */
/* id has the access privilege to create a session on behalf */
/* of the user */
rc = rbac_create_session_acl_check( &reqp->sessid, userp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_create_session: "
"rbac_authenticate_user failed!\n" );
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
rs->sr_text = "rbac_create_session: session permission denied";
goto done;
}
}
/* check user temporal constraint */
rc = rbac_user_temporal_constraint( userp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_create_session: "
"rbac_user_temporal_constraint() failed!\n" );
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
rs->sr_text = "rbac_create_session: temporal constraint violation";
goto done;
}
sessp = rbac_alloc_session();
if ( !sessp ) {
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
rs->sr_text = "rbac_create_session: unable to allocate session";
goto done;
}
rc = activate_session_roles( sessp, reqp, userp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_create_session: "
"failed to activate roles to session!\n" );
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
rs->sr_text =
"rbac_create_session: failed to activate roles into session";
goto done;
}
/* store uid and tenant id in session */
ber_dupbv( &sessp->userdn, &userp->dn );
ber_dupbv( &sessp->uid, &reqp->uid );
ber_dupbv( &sessp->tenantid, &reqp->tenantid );
/* register RBAC session */
rc = rbac_register_session( op, rs, sessp );
if ( rc != LDAP_SUCCESS ) {
goto done;
}
ber_init_w_nullc( ber, LBER_USE_DER );
rc = ber_printf( ber, "{tO}", LDAP_TAG_EXOP_RBAC_SESSION_ID,
&sessp->sessid );
if ( rc < 0 ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
} else {
(void)ber_flatten( ber, &rs->sr_rspdata );
rs->sr_rspoid = ch_strdup( slap_EXOP_CREATE_SESSION.bv_val );
rs->sr_err = LDAP_SUCCESS;
}
ber_free_buf( ber );
done:;
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_CREATE_SESSION.bv_val );
/* generate audit log */
rbac_audit(
op, CreateSession, sessp, reqp, rs->sr_err, (char *)rs->sr_text );
rbac_free_req( reqp );
rbac_free_session( sessp );
//if (rs->sr_err != LDAP_SUCCESS) {
//send_ldap_result( op, rs );
//}
return rs->sr_err;
}
/*
* slap_parse_rbac_check_access
*/
static int
slap_parse_rbac_check_access(
struct berval *in,
rbac_req_t **reqpp,
const char **text,
void *ctx )
{
int rc = LDAP_SUCCESS;
struct berval reqdata = BER_BVNULL;
rbac_req_t *reqp = NULL;
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
ber_tag_t tag;
ber_len_t len;
*text = NULL;
reqp = rbac_alloc_req( RBAC_REQ_CHECK_ACCESS );
if ( !reqp ) {
*text = "unable to allocate memory for slap_parse_rbac_check_access";
return LDAP_PROTOCOL_ERROR;
}
if ( in == NULL || in->bv_len == 0 ) {
*text = "empty request data field in rbac_check_access exop";
return LDAP_PROTOCOL_ERROR;
}
ber_dupbv_x( &reqdata, in, ctx );
/* ber_init2 uses reqdata directly, doesn't allocate new buffers */
ber_init2( ber, &reqdata, 0 );
tag = ber_scanf( ber, "{" /*}*/ );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_check_access: "
"decoding error.\n" );
goto decoding_error;
}
// sessionId is required:
tag = ber_peek_tag( ber, &len );
if ( tag != LDAP_TAG_EXOP_RBAC_SESSION_ID ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_check_access: "
"decoding error.\n" );
goto decoding_error;
} else {
struct berval bv;
tag = ber_scanf( ber, "m", &bv );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_check_access: "
"session id parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->sessid, &bv, ctx );
tag = ber_peek_tag( ber, &len );
}
// operationName is required:
if ( tag != LDAP_TAG_EXOP_RBAC_OPNAME ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_check_access: "
"decoding error.\n" );
goto decoding_error;
} else {
struct berval bv;
tag = ber_scanf( ber, "m", &bv );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_check_access: "
"opname parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->opname, &bv, ctx );
tag = ber_peek_tag( ber, &len );
}
// objectName is required:
if ( tag != LDAP_TAG_EXOP_RBAC_OBJNAME ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_check_access: "
"decoding error.\n" );
goto decoding_error;
} else {
struct berval bv;
tag = ber_scanf( ber, "m", &bv );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_check_access: "
"objname parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->objname, &bv, ctx );
tag = ber_peek_tag( ber, &len );
}
// objectId is optional:
if ( tag == LDAP_TAG_EXOP_RBAC_OBJID ) {
struct berval bv;
tag = ber_scanf( ber, "m", &bv );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_check_access: "
"objid parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->objid, &bv, ctx );
tag = ber_peek_tag( ber, &len );
}
if ( tag != LBER_DEFAULT || len != 0 ) {
decoding_error:;
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_check_access: "
"decoding error, len=%ld\n",
(long)len );
rc = LDAP_PROTOCOL_ERROR;
*text = "data decoding error";
}
if ( rc == LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "slap_parse_rbac_check_access: "
"SUCCESS\n" );
*reqpp = reqp;
} else {
Debug( LDAP_DEBUG_ANY, "slap_parse_rbac_check_access: "
"FAIL\n" );
rbac_free_req( reqp );
}
if ( !BER_BVISNULL( &reqdata ) ) {
ber_memfree_x( reqdata.bv_val, ctx );
}
return rc;
}
// checkAccess F (ALL)
static int
rbac_check_access( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
rbac_session_t *sessp = NULL;
rbac_permission_t *permp = NULL;
rbac_constraint_t *cp = NULL;
rbac_req_t *reqp = NULL;
const struct berval rbac_op = BER_BVC("CheckAccess");
int rc = LDAP_SUCCESS;
int found = 0;
rs->sr_err = slap_parse_rbac_check_access(
op->ore_reqdata, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
BER_BVZERO( &op->o_req_dn );
BER_BVZERO( &op->o_req_ndn );
/* get the session using the session id */
sessp = rbac_session_byid( op, reqp );
if ( !sessp ) {
Debug( LDAP_DEBUG_ANY, "rbac_check_access: "
"session not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/* read the permission using objectName and OpName */
permp = rbac_read_permission( op, reqp );
if ( !permp ) {
Debug( LDAP_DEBUG_ANY, "rbac_check_access: "
"permission not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
// Convert the user-role constraint data from BerVarray to rbac_constraint_t format
cp = rbac_user_role_constraints( sessp->role_constraints );
// Now do the actual rbac checkAccess:
rc = rbac_check_session_permission( sessp, permp, cp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_check_user_permission: "
"failed\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
done:
rs->sr_err = rc;
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_CHECK_ACCESS.bv_val );
/* generate audit log */
rbac_audit( op, CheckAccess, sessp, reqp, rs->sr_err, (char *)rs->sr_text );
rbac_free_permission( permp );
rbac_free_req( reqp );
rbac_free_session( sessp );
rbac_free_constraints( cp );
return rs->sr_err;
}
// checkAccess A loop back
static int
rbac_check_accessA( Operation *op, SlapReply *rs )
{
int rc = LDAP_SUCCESS;
//rs->sr_err = slap_parse_rbac_check_access(op->ore_reqdata,
// &reqp, &rs->sr_text, NULL);
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_CHECK_ACCESS.bv_val );
rs->sr_err = rc;
return rc;
}
// checkAccess B parse
static int
rbac_check_accessB( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
rbac_req_t *reqp = NULL;
const struct berval rbac_op = BER_BVC("CheckAccess");
int rc = LDAP_SUCCESS;
Debug( LDAP_DEBUG_ANY, "rbac_check_access\n" );
rs->sr_err = slap_parse_rbac_check_access(
op->ore_reqdata, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
BER_BVZERO( &op->o_req_dn );
BER_BVZERO( &op->o_req_ndn );
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_CHECK_ACCESS.bv_val );
rs->sr_err = rc;
rbac_free_req( reqp );
return rc;
}
// checkAccess C - parse request & read session record
static int
rbac_check_accessC( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
rbac_session_t *sessp = NULL;
rbac_req_t *reqp = NULL;
const struct berval rbac_op = BER_BVC("CheckAccess");
int rc = LDAP_SUCCESS;
Debug( LDAP_DEBUG_ANY, "rbac_check_access\n" );
rs->sr_err = slap_parse_rbac_check_access(
op->ore_reqdata, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
BER_BVZERO( &op->o_req_dn );
BER_BVZERO( &op->o_req_ndn );
/* get the session using the session id */
sessp = rbac_session_byid( op, reqp );
if ( !sessp ) {
Debug( LDAP_DEBUG_ANY, "rbac_check_access: "
"session not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
done:
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_CHECK_ACCESS.bv_val );
rs->sr_err = rc;
rbac_free_req( reqp );
rbac_free_session( sessp );
return rc;
}
// checkAccess D, parse, read perm
static int
rbac_check_accessD( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
rbac_permission_t *permp = NULL;
rbac_req_t *reqp = NULL;
const struct berval rbac_op = BER_BVC("CheckAccess");
int rc = LDAP_SUCCESS;
Debug( LDAP_DEBUG_ANY, "rbac_check_access\n" );
rs->sr_err = slap_parse_rbac_check_access(
op->ore_reqdata, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
BER_BVZERO( &op->o_req_dn );
BER_BVZERO( &op->o_req_ndn );
/* get the session using the session id */
/*
sessp = rbac_session_byid(op, reqp);
if ( !sessp ) {
Debug( LDAP_DEBUG_ANY, "rbac_check_access: "
"session not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
*/
/* read the permission using objectName and OpName */
permp = rbac_read_permission( op, reqp );
if ( !permp ) {
Debug( LDAP_DEBUG_ANY, "rbac_check_access: "
"permission not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
done:
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_CHECK_ACCESS.bv_val );
rs->sr_err = rc;
rbac_free_permission( permp );
rbac_free_req( reqp );
return rc;
}
// checkAccess E everything but the audit insert
static int
rbac_check_accessE( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
rbac_session_t *sessp = NULL;
rbac_permission_t *permp = NULL;
rbac_constraint_t *cp = NULL;
rbac_req_t *reqp = NULL;
const struct berval rbac_op = BER_BVC("CheckAccess");
int rc = LDAP_SUCCESS;
Debug( LDAP_DEBUG_ANY, "rbac_check_access\n" );
rs->sr_err = slap_parse_rbac_check_access(
op->ore_reqdata, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
BER_BVZERO( &op->o_req_dn );
BER_BVZERO( &op->o_req_ndn );
/* get the session using the session id */
sessp = rbac_session_byid( op, reqp );
if ( !sessp ) {
Debug( LDAP_DEBUG_ANY, "rbac_check_access: "
"session not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/* read the permission using objectName and OpName */
permp = rbac_read_permission( op, reqp );
if ( !permp ) {
Debug( LDAP_DEBUG_ANY, "rbac_check_access: "
"permission not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
// Convert the user-role constraint data from BerVarray to rbac_constraint_t format
cp = rbac_user_role_constraints( sessp->role_constraints );
// Now do the actual rbac checkAccess:
rc = rbac_check_session_permission( sessp, permp, cp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_check_user_permission: "
"failed\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
done:
rs->sr_err = rc;
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_CHECK_ACCESS.bv_val );
/* generate audit log */
//rbac_audit(op, CheckAccess, sessp, reqp, rs->sr_err,
// (char *) rs->sr_text);
rbac_free_permission( permp );
rbac_free_req( reqp );
rbac_free_session( sessp );
rbac_free_constraints( cp );
return rs->sr_err;
}
/* check whether role exists and role assigned to the user */
static int
rbac_check_user_role(
rbac_req_t *reqp,
rbac_session_t *sessp,
rbac_user_t *userp )
{
int rc = 0;
int i;
//assert(!BER_BVISEMPTY(&reqp->roles[0]));
assert( !BER_BVISEMPTY( &reqp->role ) );
for ( i = 0; !BER_BVISNULL( &userp->roles[i] ); i++ ) {
//if (!ber_bvstrcasecmp(&userp->roles[i], &reqp->roles[0])) {
if ( !ber_bvstrcasecmp( &userp->roles[i], &reqp->role ) ) {
rc = 1; /* found the match */
goto done;
}
}
done:;
return rc;
}
/* check whether role exists and role assigned to the session */
static int
rbac_check_session_role( rbac_req_t *reqp, rbac_session_t *sessp )
{
int rc = 0;
int i;
for ( i = 0; !BER_BVISNULL( &sessp->roles[i] ); i++ ) {
//if (!ber_bvstrcasecmp(&sessp->roles[i], &reqp->roles[0])) {
if ( !ber_bvstrcasecmp( &sessp->roles[i], &reqp->role ) ) {
rc = 1; /* found the match */
goto done;
}
}
done:;
return rc;
}
/* make sure user is the owner of the session */
static int
rbac_check_user_session( rbac_session_t *sessp, rbac_req_t *reqp )
{
int rc = 0;
if ( BER_BVISNULL( &sessp->uid ) || BER_BVISNULL( &reqp->uid ) ||
sessp->uid.bv_len != reqp->uid.bv_len ) {
goto done;
}
if ( !strncasecmp(
sessp->uid.bv_val, reqp->uid.bv_val, reqp->uid.bv_len ) ) {
rc = 1;
goto done;
}
done:;
return rc;
}
/*
* slap_parse_rbac_active_role
*/
static int
slap_parse_rbac_active_role(
struct berval *in,
int add_or_drop_role,
rbac_req_t **reqpp,
const char **text,
void *ctx )
{
int rc = LDAP_SUCCESS;
struct berval reqdata = BER_BVNULL;
rbac_req_t *reqp = NULL;
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
ber_tag_t tag;
ber_len_t len = -1;
*text = NULL;
if ( in == NULL || in->bv_len == 0 ) {
*text = "empty request data field in rbac_create_session exop";
return LDAP_PROTOCOL_ERROR;
}
reqp = rbac_alloc_req( add_or_drop_role );
if ( !reqp ) {
*text = "unable to allocate memory for rbac_add_drop_active_role exop";
return LDAP_PROTOCOL_ERROR;
}
ber_dupbv_x( &reqdata, in, ctx );
/* ber_init2 uses reqdata directly, doesn't allocate new buffers */
ber_init2( ber, &reqdata, 0 );
tag = ber_scanf( ber, "{" /*}*/ );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_active_role: "
"decoding error.\n" );
goto decoding_error;
}
tag = ber_peek_tag( ber, &len );
//if ( tag == LDAP_TAG_EXOP_RBAC_USER_ID ) {
if ( tag == LDAP_TAG_EXOP_RBAC_USER_ID_SESS ) {
struct berval bv;
tag = ber_scanf( ber, "m", &bv );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_active_role: "
"user id parse failed.\n" );
goto decoding_error;
}
ber_dupbv( &reqp->uid, &bv );
tag = ber_peek_tag( ber, &len );
}
if ( tag == LDAP_TAG_EXOP_RBAC_SESSION_ID_SESS ) {
struct berval bv;
tag = ber_scanf( ber, "m", &bv );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_active_role: "
"session id parse failed.\n" );
goto decoding_error;
}
ber_dupbv( &reqp->sessid, &bv );
tag = ber_peek_tag( ber, &len );
}
if ( tag == LDAP_TAG_EXOP_RBAC_ROLE_NM_SESS ) {
struct berval bv;
tag = ber_scanf( ber, "m", &bv );
//tag = ber_scanf( ber, "W", &reqp->roles);
//tag = ber_scanf( ber, "m", &reqp->roles);
//tag = ber_scanf( ber, "m", &reqp->roles[0]);
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_create_session: "
"role parse failed.\n" );
goto decoding_error;
}
ber_dupbv( &reqp->role, &bv );
//ber_dupbv(&reqp->roles[0], &bv);
tag = ber_peek_tag( ber, &len );
}
if ( tag != LBER_DEFAULT || len != 0 ) {
decoding_error:;
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_create_session: "
"decoding error, len=%ld\n",
(long)len );
rc = LDAP_PROTOCOL_ERROR;
*text = "data decoding error";
}
if ( rc == LDAP_SUCCESS ) {
*reqpp = reqp;
} else {
rbac_free_req( reqp );
*reqpp = NULL;
}
if ( !BER_BVISNULL( &reqdata ) ) {
ber_memfree_x( reqdata.bv_val, ctx );
}
return rc;
}
static int
rbac_add_active_role( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
struct berval rbac_op = BER_BVC("AddActiveRole");
rbac_req_t *reqp = NULL;
rbac_user_t *userp = NULL;
rbac_session_t *sessp;
int rc = LDAP_SUCCESS;
rs->sr_err = slap_parse_rbac_active_role( op->ore_reqdata,
RBAC_REQ_ADD_ACTIVE_ROLE, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
/* get the session using the session id */
sessp = rbac_session_byid( op, reqp );
if ( !sessp ) {
Debug( LDAP_DEBUG_ANY, "rbac_add_active_role: "
"session not found\n" );
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
rs->sr_text = "rbac_add_active_role: session not found";
goto done;
}
/* read user entry */
userp = rbac_read_user( op, reqp );
if ( !userp ) {
Debug( LDAP_DEBUG_ANY, "rbac_add_active_role: "
"unable to read user entry\n" );
rs->sr_err = LDAP_NO_SUCH_OBJECT;
rs->sr_text = "rbac_add_active_role: unable to read user entry";
goto done;
}
/* make sure role exists and role assigned to the user */
if ( !rbac_check_user_role( reqp, sessp, userp ) ) {
Debug( LDAP_DEBUG_ANY, "rbac_add_active_role: "
"role not assigned to the user\n" );
rs->sr_err = LDAP_NO_SUCH_OBJECT;
rs->sr_text = "rbac_add_active_role: role not assigned to the user";
goto done;
}
/* make sure user is the owner of the session */
if ( !rbac_check_user_session( sessp, reqp ) ) {
Debug( LDAP_DEBUG_ANY, "rbac_add_active_role: "
"user not owner of session\n" );
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
rs->sr_text = "rbac_add_active_role: user not owner of the session";
goto done;
}
/* add the role to the session */
rc = rbac_session_add_role( op, sessp, reqp );
if ( rc != LDAP_SUCCESS ) {
rs->sr_err = rc;
if ( rc == LDAP_TYPE_OR_VALUE_EXISTS ) {
rs->sr_text =
"rbac_add_active_role: role already activated in session";
Debug( LDAP_DEBUG_ANY, "rbac_add_active_role: "
"role already activated in session\n" );
} else {
rs->sr_text = "rbac_add_active_role: unable to add role to session";
Debug( LDAP_DEBUG_ANY, "rbac_add_active_role: "
"unable to add role to session\n" );
}
goto done;
}
done:
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_ADD_ACTIVE_ROLE.bv_val );
/* generate audit log */
rbac_audit(
op, AddActiveRole, sessp, reqp, rs->sr_err, (char *)rs->sr_text );
rbac_free_session( sessp );
rbac_free_user( userp );
rbac_free_req( reqp );
return rs->sr_err;
}
static int
rbac_drop_active_role( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
const struct berval rbac_op = BER_BVC("DropActiveRole");
rbac_session_t *sessp;
rbac_req_t *reqp = NULL;
int rc = LDAP_SUCCESS;
rs->sr_err = slap_parse_rbac_active_role( op->ore_reqdata,
RBAC_REQ_DROP_ACTIVE_ROLE, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
/* get the session using the session id */
sessp = rbac_session_byid( op, reqp );
if ( !sessp ) {
Debug( LDAP_DEBUG_ANY, "rbac_drop_active_role: "
"session not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
if ( BER_BVISNULL( &reqp->role ) || !sessp->roles ||
BER_BVISNULL( &sessp->roles[0] ) ) {
Debug( LDAP_DEBUG_ANY, "rbac_drop_active_role: "
"unavailable role\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/* make sure role exists and role assigned to the user */
if ( !rbac_check_session_role( reqp, sessp ) ) {
Debug( LDAP_DEBUG_ANY, "rbac_drop_active_role: "
"role not assigned to session\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/* make sure user is the owner of the session */
if ( !rbac_check_user_session( sessp, reqp ) ) {
Debug( LDAP_DEBUG_ANY, "rbac_drop_active_role: "
"user not owner of session\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
rs->sr_text = "rbac_drop_active_role: user not owner of the session";
goto done;
}
/* drop the role to the session */
rc = rbac_session_drop_role( op, sessp, reqp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_drop_active_role: "
"unable to drop active role from session\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
rs->sr_text = "rbac_drop_active_role: unable to drop role from session";
goto done;
}
done:
rs->sr_err = rc;
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_DROP_ACTIVE_ROLE.bv_val );
/* generate audit log */
rbac_audit(
op, DropActiveRole, sessp, reqp, rs->sr_err, (char *)rs->sr_text );
rbac_free_session( sessp );
rbac_free_req( reqp );
return rs->sr_err;
}
/*
* slap_parse_rbac_delete_session
*/
static int
slap_parse_rbac_delete_session(
struct berval *in,
rbac_req_t **reqpp,
const char **text,
void *ctx )
{
int rc = LDAP_SUCCESS;
struct berval reqdata = BER_BVNULL;
rbac_req_t *reqp = NULL;
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
ber_tag_t tag;
ber_len_t len = -1;
*text = NULL;
if ( in == NULL || in->bv_len == 0 ) {
*text = "empty request data field in rbac_delete_session exop";
return LDAP_PROTOCOL_ERROR;
}
reqp = rbac_alloc_req( RBAC_REQ_DELETE_SESSION );
if ( !reqp ) {
*text = "unable to allocate memory for rbac_delete_session exop";
return LDAP_PROTOCOL_ERROR;
}
ber_dupbv_x( &reqdata, in, ctx );
/* ber_init2 uses reqdata directly, doesn't allocate new buffers */
ber_init2( ber, &reqdata, 0 );
tag = ber_scanf( ber, "{" /*}*/ );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_delete_session: "
"decoding error.\n" );
goto decoding_error;
}
tag = ber_peek_tag( ber, &len );
if ( tag == LDAP_TAG_EXOP_RBAC_USER_ID_SESS ) {
struct berval uid;
tag = ber_scanf( ber, "m", &uid );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_delete_session: "
"user id parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->uid, &uid, ctx );
tag = ber_peek_tag( ber, &len );
}
//tag = ber_peek_tag( ber, &len );
if ( tag == LDAP_TAG_EXOP_RBAC_SESSION_ID_SESS ) {
struct berval sessid;
tag = ber_scanf( ber, "m", &sessid );
if ( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_delete_session: "
"session id parse failed.\n" );
goto decoding_error;
}
ber_dupbv_x( &reqp->sessid, &sessid, ctx );
tag = ber_peek_tag( ber, &len );
}
if ( tag != LBER_DEFAULT || len != 0 ) {
decoding_error:;
Debug( LDAP_DEBUG_TRACE, "slap_parse_rbac_delete_session: "
"decoding error, len=%ld\n",
(long)len );
rc = LDAP_PROTOCOL_ERROR;
*text = "data decoding error";
}
if ( rc == LDAP_SUCCESS ) {
*reqpp = reqp;
} else {
rbac_free_req( reqp );
*reqpp = NULL;
}
if ( !BER_BVISNULL( &reqdata ) ) {
ber_memfree_x( reqdata.bv_val, ctx );
}
return rc;
}
static int
rbac_delete_session( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
const struct berval rbac_op = BER_BVC("DeleteSession");
rbac_session_t *sessp = NULL;
rbac_req_t *reqp = NULL;
int rc;
rs->sr_err = slap_parse_rbac_delete_session(
op->ore_reqdata, &reqp, &rs->sr_text, NULL );
assert( rs->sr_err == LDAP_SUCCESS );
/* get the session using the session id */
sessp = rbac_session_byid( op, reqp );
if ( !sessp ) {
Debug( LDAP_DEBUG_ANY, "rbac_delete_session: "
"session not found\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/* checking whether the session is owned by the user */
if ( !rbac_is_session_owner( sessp, reqp ) ) {
Debug( LDAP_DEBUG_ANY, "rbac_delete_session: "
"session not owned by user\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
rc = rbac_int_delete_session( op, sessp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_int_delete_session: "
"unable to delete session\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
done:;
rs->sr_err = rc;
// always put the OID in the response:
rs->sr_rspoid = ch_strdup( slap_EXOP_DELETE_SESSION.bv_val );
/* generate audit log */
rbac_audit(
op, DeleteSession, sessp, reqp, rs->sr_err, (char *)rs->sr_text );
rbac_free_session( sessp );
rbac_free_req( reqp );
return rs->sr_err;
}
/* returns the permissions associated with a session */
static int
rbac_session_permissions( Operation *op, SlapReply *rs, rbac_req_t *reqp )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
const struct berval rbac_op = BER_BVC("SessionPermissions");
rbac_session_t *sessp;
sessp = rbac_session_byid( op, reqp );
if ( !sessp ) {
Debug( LDAP_DEBUG_ANY, "rbac_session_permissions: "
"session id not found\n" );
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
rs->sr_err = rbac_int_session_permissions( op, rs, reqp, sessp );
if ( rs->sr_err != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_session_permissions: "
"permissions not found\n" );
goto done;
}
done:;
return rs->sr_err;
}
/* extract session permission info from op */
int
rbac_search_parse_session_permissions_req(
Operation *op,
rbac_req_t **reqpp,
const char **text,
void *ctx )
{
int rc = LDAP_SUCCESS;
struct berval *sessid = NULL;
rbac_req_t *reqp = NULL;
*text = NULL;
struct berval rbac_session_id = BER_BVC("sessionID");
struct berval rbac_session_permissions_attr =
BER_BVC("sessionPermissions");
AttributeDescription *ad = NULL;
Filter *f;
/* check simple assertion (sessionID=<session id>) */
f = op->ors_filter;
ad = f->f_ava->aa_desc;
if ( !ad || ber_bvstrcasecmp( &rbac_session_id, &ad->ad_cname ) ) {
goto done;
}
sessid = &f->f_ava->aa_value;
if ( !rbac_is_valid_session_id( sessid ) ) {
Debug( LDAP_DEBUG_ANY, "rbac_search_parse_session_permissions_req: "
"invalid session id\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/* check requested attr */
if ( !op->oq_search.rs_attrs ||
BER_BVISNULL( &op->oq_search.rs_attrs[0].an_name ) ||
ber_bvstrcasecmp( &op->oq_search.rs_attrs[0].an_name,
&rbac_session_permissions_attr ) ||
!BER_BVISNULL( &op->oq_search.rs_attrs[1].an_name ) ) {
Debug( LDAP_DEBUG_ANY, "rbac_search_parse_session_permissions_req: "
"only sessionPermissions allowed\n" );
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
reqp = rbac_alloc_req( RBAC_REQ_SESSION_PERMISSIONS );
if ( !reqp ) {
*text = "unable to allocate memory for rbac_session_permissions req";
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
/* retrieve session id from search filter */
ber_dupbv_x( &reqp->sessid, sessid, ctx );
done:;
if ( rc == LDAP_SUCCESS ) {
*reqpp = reqp;
} else {
rbac_free_req( reqp );
*reqpp = NULL;
}
return rc;
}
static int
rbac_search( Operation *op, SlapReply *rs )
{
Debug( LDAP_DEBUG_ANY, "rbac_search entry\n" );
return SLAP_CB_CONTINUE;
}
/*
static int
rbac_search( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
rbac_req_t *reqp = NULL;
int rc = SLAP_CB_CONTINUE;
only session_permissions is implemented for now
rc = rbac_search_parse_session_permissions_req(
op, &reqp, &rs->sr_text, NULL );
if ( !reqp ) {
Debug( LDAP_DEBUG_ANY, "rbac_search: "
"invalid search for session permissions\n" );
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
rc = rbac_session_permissions( op, rs, reqp );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_search: "
"session permissions failed\n" );
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
rs->sr_err = LDAP_SUCCESS;
done:;
send_ldap_result( op, rs );
return rc;
}
*/
static struct exop {
struct berval oid;
BI_op_extended *extended;
} rbac_exop_table[] = {
{ BER_BVC(LDAP_RBAC_EXOP_CREATE_SESSION), rbac_create_session },
{ BER_BVC(LDAP_RBAC_EXOP_CHECK_ACCESS), rbac_check_access },
{ BER_BVC(LDAP_RBAC_EXOP_ADD_ACTIVE_ROLE), rbac_add_active_role },
{ BER_BVC(LDAP_RBAC_EXOP_DROP_ACTIVE_ROLE), rbac_drop_active_role },
{ BER_BVC(LDAP_RBAC_EXOP_DELETE_SESSION), rbac_delete_session },
{ BER_BVC(LDAP_RBAC_EXOP_SESSION_ROLES), rbac_session_roles },
{ BER_BVNULL, NULL }
};
static int
rbac_add( Operation *op, SlapReply *rs )
{
return SLAP_CB_CONTINUE;
}
static int
rbac_bind( Operation *op, SlapReply *rs )
{
return SLAP_CB_CONTINUE;
}
static int
rbac_compare( Operation *op, SlapReply *rs )
{
return SLAP_CB_CONTINUE;
}
static int
rbac_delete( Operation *op, SlapReply *rs )
{
return SLAP_CB_CONTINUE;
}
static int
rbac_modify( Operation *op, SlapReply *rs )
{
return SLAP_CB_CONTINUE;
}
static int
rbac_extended( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
int rc = SLAP_CB_CONTINUE;
int i;
for ( i = 0; rbac_exop_table[i].extended != NULL; i++ ) {
if ( bvmatch( &rbac_exop_table[i].oid, &op->oq_extended.rs_reqoid ) ) {
rc = rbac_exop_table[i].extended( op, rs );
switch ( rc ) {
case LDAP_SUCCESS:
break;
case SLAP_CB_CONTINUE:
case SLAPD_ABANDON:
return rc;
default:
send_ldap_result( op, rs );
return rc;
}
break;
}
}
return rc;
}
static int
rbac_db_init( BackendDB *be, ConfigReply *cr )
{
slap_overinst *on = (slap_overinst *)be->bd_info;
return 0;
}
static int
rbac_db_open( BackendDB *be, ConfigReply *cr )
{
int rc = LDAP_SUCCESS;
rc = rbac_initialize_tenants( be, cr );
return rc;
}
static int
rbac_db_close( BackendDB *be, ConfigReply *cr )
{
return 0;
}
int
rbac_initialize()
{
int rc;
rc = load_extop2( (struct berval *)&slap_EXOP_CREATE_SESSION,
SLAP_EXOP_WRITES|SLAP_EXOP_HIDE, rbac_create_session, 0 );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_initialize: "
"unable to register rbac_create_session exop: %d\n",
rc );
return rc;
}
rc = load_extop2( (struct berval *)&slap_EXOP_CHECK_ACCESS,
SLAP_EXOP_WRITES|SLAP_EXOP_HIDE, rbac_check_access, 0 );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_initialize: "
"unable to register rbac_check_access exop: %d\n",
rc );
return rc;
}
rc = load_extop2( (struct berval *)&slap_EXOP_ADD_ACTIVE_ROLE,
SLAP_EXOP_WRITES|SLAP_EXOP_HIDE, rbac_add_active_role, 0 );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_initialize: "
"unable to register rbac_add_active_role exop: %d\n",
rc );
return rc;
}
rc = load_extop2( (struct berval *)&slap_EXOP_DROP_ACTIVE_ROLE,
SLAP_EXOP_WRITES|SLAP_EXOP_HIDE, rbac_drop_active_role, 0 );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_initialize: "
"unable to register rbac_drop_active_role exop: %d\n",
rc );
return rc;
}
rc = load_extop2( (struct berval *)&slap_EXOP_DELETE_SESSION,
SLAP_EXOP_WRITES|SLAP_EXOP_HIDE, rbac_delete_session, 0 );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_initialize: "
"unable to register rbac_delete_session exop: %d\n",
rc );
return rc;
}
rc = load_extop2( (struct berval *)&slap_EXOP_SESSION_ROLES,
SLAP_EXOP_WRITES|SLAP_EXOP_HIDE, rbac_session_roles, 0 );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "rbac_initialize: "
"unable to register rbac_session_roles exop: %d\n",
rc );
return rc;
}
rbac.on_bi.bi_type = "rbac";
rbac.on_bi.bi_db_init = rbac_db_init;
rbac.on_bi.bi_db_open = rbac_db_open;
rbac.on_bi.bi_db_close = rbac_db_close;
rbac.on_bi.bi_op_add = rbac_add;
rbac.on_bi.bi_op_bind = rbac_bind;
rbac.on_bi.bi_op_compare = rbac_compare;
rbac.on_bi.bi_op_delete = rbac_delete;
rbac.on_bi.bi_op_modify = rbac_modify;
rbac.on_bi.bi_op_search = rbac_search;
rbac.on_bi.bi_extended = rbac_extended;
rbac.on_bi.bi_cf_ocs = rbac_ocs;
/* rbac.on_bi.bi_connection_destroy = rbac_connection_destroy; */
rc = config_register_schema( rbaccfg, rbac_ocs );
if ( rc ) return rc;
rc = rbac_initialize_repository();
if ( rc != LDAP_SUCCESS ) {
return rc;
}
return overlay_register( &rbac );
}
int
init_module( int argc, char *argv[] )
{
return rbac_initialize();
}
Reference in a new issue View git blame Copy permalink