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modify.c
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modify.c
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/** BEGIN COPYRIGHT BLOCK
* This Program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA.
*
* In addition, as a special exception, Red Hat, Inc. gives You the additional
* right to link the code of this Program with code not covered under the GNU
* General Public License ("Non-GPL Code") and to distribute linked combinations
* including the two, subject to the limitations in this paragraph. Non-GPL Code
* permitted under this exception must only link to the code of this Program
* through those well defined interfaces identified in the file named EXCEPTION
* found in the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline functions from
* the Approved Interfaces without causing the resulting work to be covered by
* the GNU General Public License. Only Red Hat, Inc. may make changes or
* additions to the list of Approved Interfaces. You must obey the GNU General
* Public License in all respects for all of the Program code and other code used
* in conjunction with the Program except the Non-GPL Code covered by this
* exception. If you modify this file, you may extend this exception to your
* version of the file, but you are not obligated to do so. If you do not wish to
* provide this exception without modification, you must delete this exception
* statement from your version and license this file solely under the GPL without
* exception.
*
*
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2009 Red Hat, Inc.
* Copyright (C) 2009, 2010 Hewlett-Packard Development Company, L.P.
* All rights reserved.
*
* Contributors:
* Hewlett-Packard Development Company, L.P.
* Bugfix for bug #195302
*
* END COPYRIGHT BLOCK **/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
/*
* Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <string.h>
#include <sys/types.h>
#ifndef _WIN32
#include <sys/socket.h>
#endif
#include "slap.h"
#include "pratom.h"
#if defined(irix) || defined(aix) || defined(_WIN32)
#include <time.h>
#endif
/* Forward declarations */
static int modify_internal_pb (Slapi_PBlock *pb);
static void op_shared_modify (Slapi_PBlock *pb, int pw_change, char *old_pw);
#if 0 /* not used */
static void remove_mod (Slapi_Mods *smods, const char *type, Slapi_Mods *smod_unhashed);
#endif
static int op_shared_allow_pw_change (Slapi_PBlock *pb, LDAPMod *mod, char **old_pw, Slapi_Mods *smods);
static int hash_rootpw (LDAPMod **mods);
#ifdef LDAP_DEBUG
static const char*
mod_op_image (int op)
{
switch (op & ~LDAP_MOD_BVALUES) {
case LDAP_MOD_ADD: return "add";
case LDAP_MOD_DELETE: return "delete";
case LDAP_MOD_REPLACE: return "replace";
default: break;
}
return "???";
}
#endif
/* an AttrCheckFunc function should return an LDAP result code (LDAP_SUCCESS if all goes well). */
typedef int (*AttrCheckFunc)(const char *attr_name, char *value, long minval, long maxval, char *errorbuf);
static struct attr_value_check {
const char *attr_name; /* the name of the attribute */
AttrCheckFunc checkfunc;
long minval;
long maxval;
} AttrValueCheckList[] = {
{CONFIG_PW_SYNTAX_ATTRIBUTE, attr_check_onoff, 0, 0},
{CONFIG_PW_CHANGE_ATTRIBUTE, attr_check_onoff, 0, 0},
{CONFIG_PW_LOCKOUT_ATTRIBUTE, attr_check_onoff, 0, 0},
{CONFIG_PW_MUSTCHANGE_ATTRIBUTE, attr_check_onoff, 0, 0},
{CONFIG_PW_EXP_ATTRIBUTE, attr_check_onoff, 0, 0},
{CONFIG_PW_UNLOCK_ATTRIBUTE, attr_check_onoff, 0, 0},
{CONFIG_PW_HISTORY_ATTRIBUTE, attr_check_onoff, 0, 0},
{CONFIG_PW_MINAGE_ATTRIBUTE, check_pw_duration_value, -1, -1},
{CONFIG_PW_WARNING_ATTRIBUTE, check_pw_duration_value, 0, -1},
{CONFIG_PW_MINLENGTH_ATTRIBUTE, attr_check_minmax, 2, 512},
{CONFIG_PW_MAXFAILURE_ATTRIBUTE, attr_check_minmax, 1, 32767},
{CONFIG_PW_INHISTORY_ATTRIBUTE, attr_check_minmax, 2, 24},
{CONFIG_PW_LOCKDURATION_ATTRIBUTE, check_pw_duration_value, -1, -1},
{CONFIG_PW_RESETFAILURECOUNT_ATTRIBUTE, check_pw_resetfailurecount_value, -1, -1},
{CONFIG_PW_GRACELIMIT_ATTRIBUTE, attr_check_minmax, 0, -1},
{CONFIG_PW_STORAGESCHEME_ATTRIBUTE, check_pw_storagescheme_value, -1, -1},
{CONFIG_PW_MAXAGE_ATTRIBUTE, check_pw_duration_value, -1, -1}
};
/* This function is called to process operation that come over external connections */
void
do_modify( Slapi_PBlock *pb )
{
Slapi_Operation *operation;
BerElement *ber;
char *last, *type = NULL;
ber_tag_t tag;
ber_len_t len;
LDAPMod *mod;
LDAPMod **mods;
Slapi_Mods smods;
int err;
int pw_change = 0; /* 0= no password change */
int ignored_some_mods = 0;
int has_password_mod = 0; /* number of password mods */
char *old_pw = NULL; /* remember the old password */
char *rawdn = NULL;
int minssf_exclude_rootdse = 0;
LDAPDebug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
slapi_pblock_get( pb, SLAPI_OPERATION, &operation);
ber = operation->o_ber;
/* count the modify request */
slapi_counter_increment(g_get_global_snmp_vars()->ops_tbl.dsModifyEntryOps);
/*
* Parse the modify request. It looks like this:
*
* ModifyRequest := [APPLICATION 6] SEQUENCE {
* name DistinguishedName,
* mods SEQUENCE OF SEQUENCE {
* operation ENUMERATED {
* add (0),
* delete (1),
* replace (2)
* },
* modification SEQUENCE {
* type AttributeType,
* values SET OF AttributeValue
* }
* }
* }
*/
{
int rc = 0;
if ( ber_scanf( ber, "{a", &rawdn ) == LBER_ERROR )
{
LDAPDebug( LDAP_DEBUG_ANY,
"ber_scanf failed (op=Modify; params=DN)\n", 0, 0, 0 );
op_shared_log_error_access (pb, "MOD", "???", "decoding error");
send_ldap_result( pb, LDAP_PROTOCOL_ERROR, NULL, NULL, 0, NULL );
slapi_ch_free_string(&rawdn);
return;
}
/* Check if we should be performing strict validation. */
if (config_get_dn_validate_strict()) {
/* check that the dn is formatted correctly */
rc = slapi_dn_syntax_check(pb, rawdn, 1);
if (rc) { /* syntax check failed */
op_shared_log_error_access(pb, "MOD", rawdn?rawdn:"",
"strict: invalid dn");
send_ldap_result(pb, LDAP_INVALID_DN_SYNTAX,
NULL, "invalid dn", 0, NULL);
slapi_ch_free((void **) &rawdn);
return;
}
}
}
LDAPDebug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", rawdn, 0, 0 );
/*
* If nsslapd-minssf-exclude-rootdse is on, the minssf check has been
* postponed until here. We should do it now.
*/
minssf_exclude_rootdse = config_get_minssf_exclude_rootdse();
if (minssf_exclude_rootdse) {
int minssf = 0;
/* Check if the minimum SSF requirement has been met. */
minssf = config_get_minssf();
if ((pb->pb_conn->c_sasl_ssf < minssf) &&
(pb->pb_conn->c_ssl_ssf < minssf) &&
(pb->pb_conn->c_local_ssf < minssf)) {
op_shared_log_error_access(pb, "MOD", rawdn?rawdn:"",
"Minimum SSF not met");
send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL,
"Minimum SSF not met.", 0, NULL);
slapi_ch_free((void **) &rawdn);
return;
}
}
slapi_pblock_set( pb, SLAPI_REQUESTOR_ISROOT, &pb->pb_op->o_isroot);
slapi_pblock_set( pb, SLAPI_ORIGINAL_TARGET, rawdn );
/* collect modifications & save for later */
slapi_mods_init(&smods, 0);
len = -1;
for ( tag = ber_first_element( ber, &len, &last );
tag != LBER_ERROR && tag != LBER_END_OF_SEQORSET;
tag = ber_next_element( ber, &len, last ) )
{
ber_int_t mod_op;
mod = (LDAPMod *) slapi_ch_malloc( sizeof(LDAPMod) );
mod->mod_bvalues = NULL;
len = -1; /* reset - len is not used */
if ( ber_scanf( ber, "{i{a[V]}}", &mod_op, &type,
&mod->mod_bvalues ) == LBER_ERROR )
{
op_shared_log_error_access (pb, "MOD", rawdn, "decoding error");
send_ldap_result( pb, LDAP_PROTOCOL_ERROR, NULL,
"decoding error", 0, NULL );
ber_bvecfree(mod->mod_bvalues);
slapi_ch_free((void **)&mod);
slapi_ch_free_string(&type);
goto free_and_return;
}
mod->mod_op = mod_op;
mod->mod_type = slapi_attr_syntax_normalize(type);
if ( !mod->mod_type || !*mod->mod_type ) {
char ebuf[BUFSIZ];
PR_snprintf (ebuf, BUFSIZ, "invalid type '%s'", type);
op_shared_log_error_access (pb, "MOD", rawdn, ebuf);
send_ldap_result( pb, LDAP_INVALID_SYNTAX, NULL, ebuf, 0, NULL );
slapi_ch_free((void **)&type);
ber_bvecfree(mod->mod_bvalues);
slapi_ch_free_string(&mod->mod_type);
slapi_ch_free((void **)&mod);
goto free_and_return;
}
slapi_ch_free((void **)&type);
if ( mod->mod_op != LDAP_MOD_ADD &&
mod->mod_op != LDAP_MOD_DELETE &&
mod->mod_op != LDAP_MOD_REPLACE )
{
op_shared_log_error_access (pb, "MOD", rawdn, "unrecognized modify operation");
send_ldap_result( pb, LDAP_PROTOCOL_ERROR, NULL,
"unrecognized modify operation", 0, NULL );
ber_bvecfree(mod->mod_bvalues);
slapi_ch_free((void **)&(mod->mod_type));
slapi_ch_free((void **)&mod);
goto free_and_return;
}
if ( mod->mod_bvalues == NULL
&& mod->mod_op != LDAP_MOD_DELETE
&& mod->mod_op != LDAP_MOD_REPLACE )
{
op_shared_log_error_access (pb, "MOD", rawdn, "no values given");
send_ldap_result( pb, LDAP_PROTOCOL_ERROR, NULL,
"no values given", 0, NULL );
ber_bvecfree(mod->mod_bvalues);
slapi_ch_free((void **)&(mod->mod_type));
slapi_ch_free((void **)&mod);
goto free_and_return;
}
/* check if user is allowed to modify the specified attribute */
if (!op_shared_is_allowed_attr (mod->mod_type, pb->pb_conn->c_isreplication_session))
{
/* for now we just ignore attributes that client is not allowed
to modify so not to break existing clients */
++ignored_some_mods;
ber_bvecfree(mod->mod_bvalues);
slapi_ch_free((void **)&(mod->mod_type));
slapi_ch_free((void **)&mod);
continue;
}
/* check for password change */
if ( mod->mod_bvalues != NULL &&
strcasecmp( mod->mod_type, SLAPI_USERPWD_ATTR ) == 0 ){
has_password_mod++;
}
mod->mod_op |= LDAP_MOD_BVALUES;
slapi_mods_add_ldapmod (&smods, mod);
}
if (ignored_some_mods && (0 == smods.num_elements)) {
send_ldap_result( pb, LDAP_UNWILLING_TO_PERFORM, NULL, NULL, 0, NULL );
goto free_and_return;
}
/* check for decoding error */
/*
if using mozldap - will return LBER_END_OF_SEQORSET if loop
completed successfully, otherwise, other value
if using openldap - will return LBER_DEFAULT in either case
if there was at least one element read, len will be -1
if there were no elements read (empty modify) len will be 0
*/
#if defined(USE_OPENLDAP)
if ( tag != LBER_END_OF_SEQORSET )
{
if ( ( len == 0 ) && ( 0 == smods.num_elements ) && !ignored_some_mods ) {
/* ok - empty modify - allow empty modifies */
} else if ( len != -1 ) {
op_shared_log_error_access (pb, "MOD", rawdn, "decoding error");
send_ldap_result( pb, LDAP_PROTOCOL_ERROR, NULL, "decoding error", 0, NULL );
goto free_and_return;
}
/* else ok */
}
#else
if ( tag != LBER_END_OF_SEQORSET )
{
op_shared_log_error_access (pb, "MOD", rawdn, "decoding error");
send_ldap_result( pb, LDAP_PROTOCOL_ERROR, NULL, "decoding error", 0, NULL );
goto free_and_return;
}
#endif
/* decode the optional controls - put them in the pblock */
if ( (err = get_ldapmessage_controls( pb, ber, NULL )) != 0 )
{
op_shared_log_error_access (pb, "MOD", rawdn, "failed to decode LDAP controls");
send_ldap_result( pb, err, NULL, NULL, 0, NULL );
goto free_and_return;
}
/* if there are any password mods, see if they are allowed */
if (has_password_mod) {
/* iterate through the mods looking for password mods */
for (mod = slapi_mods_get_first_mod(&smods);
mod;
mod = slapi_mods_get_next_mod(&smods)) {
if ( mod->mod_bvalues != NULL &&
strcasecmp( mod->mod_type, SLAPI_USERPWD_ATTR ) == 0 ) {
/* assumes controls have already been decoded and placed
in the pblock */
pw_change = op_shared_allow_pw_change (pb, mod, &old_pw, &smods);
if (pw_change == -1) {
goto free_and_return;
}
}
}
}
if (!pb->pb_conn->c_isreplication_session &&
pb->pb_conn->c_needpw && pw_change == 0 )
{
(void)slapi_add_pwd_control ( pb, LDAP_CONTROL_PWEXPIRED, 0);
op_shared_log_error_access (pb, "MOD", rawdn, "need new password");
send_ldap_result( pb, LDAP_UNWILLING_TO_PERFORM, NULL, NULL, 0, NULL );
goto free_and_return;
}
#ifdef LDAP_DEBUG
LDAPDebug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
for (mod = slapi_mods_get_first_mod(&smods); mod != NULL;
mod = slapi_mods_get_next_mod(&smods))
{
LDAPDebug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
mod_op_image( mod->mod_op ), mod->mod_type, 0 );
}
#endif
mods = slapi_mods_get_ldapmods_passout (&smods);
slapi_pblock_set( pb, SLAPI_MODIFY_MODS, mods);
op_shared_modify ( pb, pw_change, old_pw );
slapi_pblock_get(pb, SLAPI_MODIFY_MODS, &mods);
ldap_mods_free (mods, 1 /* Free the Array and the Elements */);
free_and_return:;
slapi_ch_free ((void**)&rawdn);
slapi_mods_done(&smods);
}
/* This function is used to issue internal modify operation
This is an old style API. Its use is discoraged because it is not extendable and
because it does not allow to check whether plugin has right to access part of the
tree it is trying to modify. Use slapi_modify_internal_pb instead */
Slapi_PBlock*
slapi_modify_internal(const char *idn,
LDAPMod **mods,
LDAPControl **controls,
int dummy)
{
Slapi_PBlock pb;
Slapi_PBlock *result_pb = NULL;
int opresult;
pblock_init(&pb);
slapi_modify_internal_set_pb (&pb, idn, (LDAPMod**)mods, controls, NULL,
(void *)plugin_get_default_component_id(), 0);
modify_internal_pb (&pb);
result_pb = slapi_pblock_new();
if (result_pb)
{
slapi_pblock_get(&pb, SLAPI_PLUGIN_INTOP_RESULT, &opresult);
slapi_pblock_set(result_pb, SLAPI_PLUGIN_INTOP_RESULT, &opresult);
}
pblock_done(&pb);
return result_pb;
}
/* This is new style API to issue internal modify operation.
pblock should contain the following data (can be set via call to slapi_modify_internal_set_pb):
For uniqueid based operation:
SLAPI_TARGET_DN set to dn that allows to select right backend, can be stale
SLAPI_TARGET_UNIQUEID set to the uniqueid of the entry we are looking for
SLAPI_MODIFY_MODS set to the mods
SLAPI_CONTROLS_ARG set to request controls if present
For dn based search:
SLAPI_TARGET_DN set to the entry dn
SLAPI_MODIFY_MODS set to the mods
SLAPI_CONTROLS_ARG set to request controls if present
*/
int slapi_modify_internal_pb (Slapi_PBlock *pb)
{
if (pb == NULL)
return -1;
if (!allow_operation (pb))
{
slapi_send_ldap_result( pb, LDAP_UNWILLING_TO_PERFORM, NULL,
"This plugin is not configured to access operation target data", 0, NULL );
return 0;
}
return modify_internal_pb (pb);
}
/* Initialize a pblock for a call to slapi_modify_internal_pb() */
void
slapi_modify_internal_set_pb (Slapi_PBlock *pb, const char *dn,
LDAPMod **mods, LDAPControl **controls,
const char *uniqueid,
Slapi_ComponentId *plugin_identity,
int operation_flags)
{
Operation *op;
PR_ASSERT (pb != NULL);
if (pb == NULL || dn == NULL || mods == NULL)
{
slapi_log_error(SLAPI_LOG_FATAL, NULL,
"slapi_modify_internal_set_pb: NULL parameter\n");
return;
}
op= internal_operation_new(SLAPI_OPERATION_MODIFY,operation_flags);
slapi_pblock_set(pb, SLAPI_OPERATION, op);
slapi_pblock_set(pb, SLAPI_ORIGINAL_TARGET, (void*)dn);
slapi_pblock_set(pb, SLAPI_MODIFY_MODS, mods);
slapi_pblock_set(pb, SLAPI_CONTROLS_ARG, controls);
if (uniqueid)
{
slapi_pblock_set(pb, SLAPI_TARGET_UNIQUEID, (void*)uniqueid);
}
slapi_pblock_set(pb, SLAPI_PLUGIN_IDENTITY, plugin_identity);
}
/* Initialize a pblock for a call to slapi_modify_internal_pb() */
void
slapi_modify_internal_set_pb_ext(Slapi_PBlock *pb, const Slapi_DN *sdn,
LDAPMod **mods, LDAPControl **controls,
const char *uniqueid,
Slapi_ComponentId *plugin_identity,
int operation_flags)
{
Operation *op;
PR_ASSERT (pb != NULL);
if (pb == NULL || sdn == NULL || mods == NULL)
{
slapi_log_error(SLAPI_LOG_FATAL, NULL,
"slapi_modify_internal_set_pb: NULL parameter\n");
return;
}
op= internal_operation_new(SLAPI_OPERATION_MODIFY,operation_flags);
slapi_pblock_set(pb, SLAPI_OPERATION, op);
slapi_pblock_set(pb, SLAPI_ORIGINAL_TARGET, (void *)slapi_sdn_get_dn(sdn));
slapi_pblock_set(pb, SLAPI_TARGET_SDN, (void *)sdn);
slapi_pblock_set(pb, SLAPI_MODIFY_MODS, mods);
slapi_pblock_set(pb, SLAPI_CONTROLS_ARG, controls);
if (uniqueid)
{
slapi_pblock_set(pb, SLAPI_TARGET_UNIQUEID, (void*)uniqueid);
}
slapi_pblock_set(pb, SLAPI_PLUGIN_IDENTITY, plugin_identity);
}
/* Helper functions */
static int modify_internal_pb (Slapi_PBlock *pb)
{
LDAPControl **controls;
int pwpolicy_ctrl = 0;
Operation *op;
int opresult = 0;
LDAPMod **normalized_mods = NULL;
LDAPMod **mods;
LDAPMod **mod;
Slapi_Mods smods;
int pw_change = 0;
char *old_pw = NULL;
PR_ASSERT (pb != NULL);
slapi_pblock_get(pb, SLAPI_MODIFY_MODS, &mods);
slapi_pblock_get(pb, SLAPI_CONTROLS_ARG, &controls);
/* See if pwpolicy control is present. We need to do
* this before we call op_shared_allow_pw_change() since
* it looks for SLAPI_PWPOLICY in the pblock to determine
* if the response contorl is needed. */
pwpolicy_ctrl = slapi_control_present( controls,
LDAP_X_CONTROL_PWPOLICY_REQUEST, NULL, NULL );
slapi_pblock_set( pb, SLAPI_PWPOLICY, &pwpolicy_ctrl );
if(mods == NULL)
{
opresult = LDAP_PARAM_ERROR;
slapi_pblock_set(pb, SLAPI_PLUGIN_INTOP_RESULT, &opresult);
return 0;
}
/* first normalize the mods so they are bvalue
* Note: We don't add any special
* attributes such as "creatorsname".
* for CIR we don't want to change them, for other
* plugins the writer should change these if it wants too by explicitly
* adding them to the mods
*/
normalized_mods = normalize_mods2bvals((const LDAPMod**)mods);
if (normalized_mods == NULL)
{
opresult = LDAP_PARAM_ERROR;
slapi_pblock_set(pb, SLAPI_PLUGIN_INTOP_RESULT, &opresult);
return 0;
}
/* check for password change */
mod = normalized_mods;
while (*mod)
{
if ((*mod)->mod_bvalues != NULL && strcasecmp((*mod)->mod_type, SLAPI_USERPWD_ATTR) == 0)
{
slapi_mods_init_passin(&smods, mods);
pw_change = op_shared_allow_pw_change (pb, *mod, &old_pw, &smods);
if (pw_change == -1)
{
/* The internal result code will already have been set by op_shared_allow_pw_change() */
ldap_mods_free(normalized_mods, 1);
return 0;
}
}
mod ++;
}
slapi_pblock_get(pb, SLAPI_OPERATION, &op);
op->o_handler_data = &opresult;
op->o_result_handler = internal_getresult_callback;
slapi_pblock_set(pb, SLAPI_MODIFY_MODS, normalized_mods);
slapi_pblock_set(pb, SLAPI_REQCONTROLS, controls);
/* set parameters common for all internal operations */
set_common_params (pb);
/* set actions taken to process the operation */
set_config_params (pb);
/* perform modify operation */
op_shared_modify (pb, pw_change, old_pw);
/* free the normalized_mods don't forget to add this*/
slapi_pblock_get(pb, SLAPI_MODIFY_MODS, &normalized_mods);
if (normalized_mods != NULL)
{
ldap_mods_free(normalized_mods, 1);
}
/* return original mods here */
slapi_pblock_set(pb, SLAPI_MODIFY_MODS, mods);
/* set result */
slapi_pblock_set(pb, SLAPI_PLUGIN_INTOP_RESULT, &opresult);
return 0;
}
static void op_shared_modify (Slapi_PBlock *pb, int pw_change, char *old_pw)
{
Slapi_Backend *be = NULL;
Slapi_Entry *pse;
Slapi_Entry *referral;
Slapi_Entry *e = NULL;
char ebuf[BUFSIZ];
char *dn = NULL;
char *normdn = NULL;
Slapi_DN *sdn = NULL;
int passin_sdn = 0;
LDAPMod **mods, *pw_mod, **tmpmods = NULL;
Slapi_Mods smods;
Slapi_Mods unhashed_pw_smod;
int repl_op, internal_op, lastmod, skip_modified_attrs;
char *unhashed_pw_attr = NULL;
Slapi_Operation *operation;
char errorbuf[BUFSIZ];
int err;
LDAPMod *lc_mod = NULL;
struct slapdplugin *p = NULL;
int numattr, i;
char *proxydn = NULL;
int proxy_err = LDAP_SUCCESS;
char *errtext = NULL;
slapi_pblock_get (pb, SLAPI_ORIGINAL_TARGET, &dn);
slapi_pblock_get (pb, SLAPI_MODIFY_TARGET_SDN, &sdn);
slapi_pblock_get (pb, SLAPI_MODIFY_MODS, &mods);
slapi_pblock_get (pb, SLAPI_MODIFY_MODS, &tmpmods);
slapi_pblock_get (pb, SLAPI_IS_REPLICATED_OPERATION, &repl_op);
slapi_pblock_get (pb, SLAPI_OPERATION, &operation);
internal_op= operation_is_flag_set(operation, OP_FLAG_INTERNAL);
slapi_pblock_get (pb, SLAPI_SKIP_MODIFIED_ATTRS, &skip_modified_attrs);
if (sdn) {
passin_sdn = 1;
} else {
sdn = slapi_sdn_new_dn_byval(dn);
slapi_pblock_set(pb, SLAPI_MODIFY_TARGET_SDN, (void*)sdn);
}
normdn = (char *)slapi_sdn_get_dn(sdn);
if (dn && (strlen(dn) > 0) && (NULL == normdn)) {
/* normalization failed */
op_shared_log_error_access(pb, "MOD", dn, "invalid dn");
send_ldap_result(pb, LDAP_INVALID_DN_SYNTAX, NULL,
"invalid dn", 0, NULL);
goto free_and_return;
}
slapi_mods_init_passin (&smods, mods);
slapi_mods_init(&unhashed_pw_smod, 0);
/* target spec is used to decide which plugins are applicable for the operation */
operation_set_target_spec (pb->pb_op, sdn);
/* get the proxy auth dn if the proxy auth control is present */
proxy_err = proxyauth_get_dn(pb, &proxydn, &errtext);
if (operation_is_flag_set(operation,OP_FLAG_ACTION_LOG_ACCESS))
{
char *proxystr = NULL;
if (proxydn)
{
proxystr = slapi_ch_smprintf(" authzid=\"%s\"", proxydn);
}
if ( !internal_op )
{
slapi_log_access(LDAP_DEBUG_STATS, "conn=%" NSPRIu64 " op=%d MOD dn=\"%s\"%s\n",
pb->pb_conn->c_connid,
pb->pb_op->o_opid,
escape_string(slapi_sdn_get_dn(sdn), ebuf),
proxystr ? proxystr : "");
}
else
{
slapi_log_access(LDAP_DEBUG_ARGS, "conn=%s op=%d MOD dn=\"%s\"%s\n",
LOG_INTERNAL_OP_CON_ID,
LOG_INTERNAL_OP_OP_ID,
escape_string(slapi_sdn_get_dn(sdn), ebuf),
proxystr ? proxystr : "");
}
slapi_ch_free_string(&proxystr);
}
/* If we encountered an error parsing the proxy control, return an error
* to the client. We do this here to ensure that we log the operation first. */
if (proxy_err != LDAP_SUCCESS)
{
send_ldap_result(pb, proxy_err, NULL, errtext, 0, NULL);
goto free_and_return;
}
/*
* We could be serving multiple database backends. Select the
* appropriate one.
*/
if ((err = slapi_mapping_tree_select(pb, &be, &referral, errorbuf)) != LDAP_SUCCESS) {
send_ldap_result(pb, err, NULL, errorbuf, 0, NULL);
be = NULL;
goto free_and_return;
}
if (referral)
{
int managedsait;
slapi_pblock_get(pb, SLAPI_MANAGEDSAIT, &managedsait);
if (managedsait)
{
send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL,
"cannot update referral", 0, NULL);
slapi_entry_free(referral);
goto free_and_return;
}
send_referrals_from_entry(pb,referral);
slapi_entry_free(referral);
goto free_and_return;
}
slapi_pblock_set(pb, SLAPI_BACKEND, be);
/* The following section checks the valid values of fine-grained
* password policy attributes.
* 1. First, it checks if the entry has "passwordpolicy" objectclass.
* 2. If yes, then if the mods contain any passwdpolicy specific attributes.
* 3. If yes, then it invokes corrosponding checking function.
*/
if ( !repl_op && !internal_op && normdn && (e = get_entry(pb, normdn)) )
{
Slapi_Value target;
slapi_value_init(&target);
slapi_value_set_string(&target,"passwordpolicy");
if ((slapi_entry_attr_has_syntax_value(e, "objectclass", &target)) == 1)
{
numattr = sizeof(AttrValueCheckList)/sizeof(AttrValueCheckList[0]);
while ( tmpmods && *tmpmods )
{
if ((*tmpmods)->mod_bvalues != NULL &&
!SLAPI_IS_MOD_DELETE((*tmpmods)->mod_op))
{
for (i=0; i < numattr; i++)
{
if (slapi_attr_type_cmp((*tmpmods)->mod_type,
AttrValueCheckList[i].attr_name, SLAPI_TYPE_CMP_SUBTYPE) == 0)
{
/* The below function call is good for
* single-valued attrs only
*/
if ( (err = AttrValueCheckList[i].checkfunc (AttrValueCheckList[i].attr_name,
(*tmpmods)->mod_bvalues[0]->bv_val, AttrValueCheckList[i].minval,
AttrValueCheckList[i].maxval, errorbuf))
!= LDAP_SUCCESS)
{
/* return error */
send_ldap_result(pb, err, NULL, errorbuf, 0, NULL);
goto free_and_return;
}
}
}
}
tmpmods++;
} /* end of (while */
} /* end of if (found */
value_done (&target);
} /* end of if (!repl_op */
/* can get lastmod only after backend is selected */
slapi_pblock_get(pb, SLAPI_BE_LASTMOD, &lastmod);
/* if this is replication session or the operation has been
* flagged - leave mod attributes alone */
if (!repl_op && !skip_modified_attrs && lastmod)
{
modify_update_last_modified_attr(pb, &smods);
}
if (0 == slapi_mods_get_num_mods(&smods)) {
/* nothing to do - no mods - this is not an error - just
send back LDAP_SUCCESS */
send_ldap_result(pb, LDAP_SUCCESS, NULL, NULL, 0, NULL);
goto free_and_return;
}
/*
* Add the unhashed password pseudo-attribute before
* calling the preop plugins
*/
if (pw_change)
{
Slapi_Value **va= NULL;
unhashed_pw_attr = slapi_attr_syntax_normalize(PSEUDO_ATTR_UNHASHEDUSERPASSWORD);
for ( pw_mod = slapi_mods_get_first_mod(&smods); pw_mod;
pw_mod = slapi_mods_get_next_mod(&smods) )
{
if (strcasecmp (pw_mod->mod_type, SLAPI_USERPWD_ATTR) != 0)
continue;
/* add pseudo password attribute */
valuearray_init_bervalarray(pw_mod->mod_bvalues, &va);
slapi_mods_add_mod_values(&smods, pw_mod->mod_op, unhashed_pw_attr, va);
valuearray_free(&va);
/* Init new value array for hashed value */
valuearray_init_bervalarray(pw_mod->mod_bvalues, &va);
/* encode password */
pw_encodevals_ext(pb, sdn, va);
/* remove current clear value of userpassword */
ber_bvecfree(pw_mod->mod_bvalues);
/* add the cipher in the structure */
valuearray_get_bervalarray(va, &pw_mod->mod_bvalues);
valuearray_free(&va);
}
}
for ( p = get_plugin_list(PLUGIN_LIST_REVER_PWD_STORAGE_SCHEME); p != NULL; p = p->plg_next )
{
char *L_attr = NULL;
int i = 0;
/* Get the appropriate encoding function */
for ( L_attr = p->plg_argv[i]; i<p->plg_argc; L_attr = p->plg_argv[++i])
{
char *L_normalized = slapi_attr_syntax_normalize(L_attr);
for ( lc_mod = slapi_mods_get_first_mod(&smods); lc_mod;
lc_mod = slapi_mods_get_next_mod(&smods) )
{
Slapi_Value **va= NULL;
if (strcasecmp (lc_mod->mod_type, L_normalized) != 0)
continue;
switch (lc_mod->mod_op & ~LDAP_MOD_BVALUES)
{
case LDAP_MOD_ADD:
case LDAP_MOD_REPLACE:
/* Init new value array for hashed value */
valuearray_init_bervalarray(lc_mod->mod_bvalues, &va);
if ( va )
{
/* encode local credentials */
pw_rever_encode(va, L_normalized);
/* remove current clear value of userpassword */
ber_bvecfree(lc_mod->mod_bvalues);
/* add the cipher in the structure */
valuearray_get_bervalarray(va, &lc_mod->mod_bvalues);
valuearray_free(&va);
}
break;
default:
/* for LDAP_MOD_DELETE, don't do anything */
/* for LDAP_MOD_BVALUES, don't do anything */
;
}
}
if (L_normalized)
slapi_ch_free ((void**)&L_normalized);
}
}
/*
* call the pre-mod plugins. if they succeed, call
* the backend mod function. then call the post-mod
* plugins.
*/
slapi_pblock_set (pb, SLAPI_MODIFY_MODS, (void*)slapi_mods_get_ldapmods_passout (&smods));
if (plugin_call_plugins(pb, internal_op ? SLAPI_PLUGIN_INTERNAL_PRE_MODIFY_FN :
SLAPI_PLUGIN_PRE_MODIFY_FN) == 0)
{
int rc;
/*
* Hash any rootpw attribute values. We hash them after pre-op
* plugins are called in case any pre-op plugin needs the clear value.
* They do need to be hashed here so they wont get audit logged in the
* clear. Note that config_set_rootpw will also do hashing if needed,
* but it will detect that the password is already hashed.
*/
slapi_pblock_get (pb, SLAPI_MODIFY_MODS, &mods);
if (hash_rootpw (mods) != 0) {
send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL,
"Failed to hash root user's password", 0, NULL);
goto free_and_return;
}
slapi_pblock_set(pb, SLAPI_PLUGIN, be->be_database);
set_db_default_result_handlers(pb);
if (be->be_modify != NULL)
{
if ((rc = (*be->be_modify)(pb)) == 0)
{
/* acl is not used for internal operations */
/* don't update aci store for remote acis */
if ((!internal_op) &&
(!slapi_be_is_flag_set(be,SLAPI_BE_FLAG_REMOTE_DATA)))
{
plugin_call_acl_mods_update (pb, SLAPI_OPERATION_MODIFY);
}
if (operation_is_flag_set(operation,OP_FLAG_ACTION_LOG_AUDIT))
write_audit_log_entry(pb); /* Record the operation in the audit log */
if (pw_change && (!slapi_be_is_flag_set(be,SLAPI_BE_FLAG_REMOTE_DATA)))
{
/* update the password info */
update_pw_info (pb, old_pw);
}
slapi_pblock_get(pb, SLAPI_ENTRY_POST_OP, &pse);
do_ps_service(pse, NULL, LDAP_CHANGETYPE_MODIFY, 0);
}
else
{
if (rc == SLAPI_FAIL_DISKFULL)
{
operation_out_of_disk_space();
goto free_and_return;
}
}
}
else
{
send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL,
"Function not implemented", 0, NULL);
}
slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, &rc);
plugin_call_plugins(pb, internal_op ? SLAPI_PLUGIN_INTERNAL_POST_MODIFY_FN :
SLAPI_PLUGIN_POST_MODIFY_FN);
}
free_and_return:
{
Slapi_Entry *epre = NULL, *epost = NULL;
slapi_pblock_get(pb, SLAPI_ENTRY_PRE_OP, &epre);
slapi_pblock_get(pb, SLAPI_ENTRY_POST_OP, &epost);
if (epre == e) {
epre = NULL; /* to avoid possible double free below */
}
if (epost == e) {
epost = NULL; /* to avoid possible double free below */
}
if (epre == epost) {
epost = NULL; /* to avoid possible double free below */
}
slapi_pblock_set(pb, SLAPI_ENTRY_PRE_OP, NULL);
slapi_pblock_set(pb, SLAPI_ENTRY_POST_OP, NULL);
slapi_entry_free(epre);
slapi_entry_free(epost);
}
slapi_entry_free(e);
if (be)
slapi_be_Unlock(be);
slapi_mods_done(&unhashed_pw_smod); /* can finalize now */
if (unhashed_pw_attr)
slapi_ch_free ((void**)&unhashed_pw_attr);
slapi_ch_free_string(&proxydn);
slapi_pblock_get(pb, SLAPI_MODIFY_TARGET_SDN, &sdn);
if (!passin_sdn) {
slapi_sdn_free(&sdn);
}