int cb_access_allowed(
Slapi_PBlock *pb,
Slapi_Entry *e, /* The Slapi_Entry */
char *attr, /* Attribute of the entry */
struct berval *val, /* value of attr. NOT USED */
int access, /* access rights */
char **errbuf
)
{
switch (access) {
case SLAPI_ACL_ADD:
case SLAPI_ACL_DELETE:
case SLAPI_ACL_COMPARE:
case SLAPI_ACL_WRITE:
case SLAPI_ACL_PROXY:
/* Keep in mind some entries are NOT */
/* available for acl evaluation */
return slapi_access_allowed(pb,e,attr,val,access);
default:
return LDAP_INSUFFICIENT_ACCESS;
}
}
static int sync_feature_allowed (Slapi_PBlock *pb)
{
int isroot = 0;
int ldapcode = LDAP_SUCCESS;
slapi_pblock_get(pb, SLAPI_REQUESTOR_ISROOT, &isroot);
if ( !isroot) {
char *dn;
Slapi_Entry *feature = NULL;
/* Fetch the feature entry and see if the requestor is allowed access. */
dn = slapi_ch_smprintf("dn: oid=%s,cn=features,cn=config", LDAP_CONTROL_SYNC);
if ((feature = slapi_str2entry(dn,0)) != NULL) {
char *dummy_attr = "1.1";
ldapcode = slapi_access_allowed(pb, feature, dummy_attr, NULL, SLAPI_ACL_READ);
}
/* If the feature entry does not exist, deny use of the control. Only
* the root DN will be allowed to use the control in this case. */
if ((feature == NULL) || (ldapcode != LDAP_SUCCESS)) {
ldapcode = LDAP_INSUFFICIENT_ACCESS;
}
slapi_ch_free((void **)&dn);
slapi_entry_free(feature);
}
return(ldapcode);
}
/*
* Function: ldif_back_compare
*
* Returns: -1, 0 or 1
*
* Description: compares entries in the ldif backend
*/
int
ldif_back_compare( Slapi_PBlock *pb )
{
LDIF *db; /*The Database*/
ldif_Entry *e, *prev; /*Used for searching the database*/
char *dn, *type; /*The dn and the type*/
struct berval *bval;
Slapi_Attr *attr;
int rc;
LDAPDebug( LDAP_DEBUG_TRACE, "=> ldif_back_compare\n", 0, 0, 0 );
prev = NULL;
if (slapi_pblock_get( pb, SLAPI_PLUGIN_PRIVATE, &db ) < 0 ||
slapi_pblock_get( pb, SLAPI_COMPARE_TARGET, &dn ) < 0 ||
slapi_pblock_get( pb, SLAPI_COMPARE_TYPE, &type ) < 0 ||
slapi_pblock_get( pb, SLAPI_COMPARE_VALUE, &bval ) < 0){
slapi_send_ldap_result( pb, LDAP_OPERATIONS_ERROR, NULL, NULL, 0, NULL );
return(-1);
}
/*Lock the database*/
PR_Lock( db->ldif_lock );
/*Find the entry for comparison*/
if ( (e = (ldif_Entry*) ldif_find_entry( pb, db, dn, &prev )) == NULL ) {
slapi_send_ldap_result( pb, LDAP_NO_SUCH_OBJECT, NULL, NULL, 0, NULL );
PR_Unlock( db->ldif_lock );
return( 1 );
}
/*Check the access*/
rc= slapi_access_allowed( pb, e->lde_e, type, bval, SLAPI_ACL_COMPARE );
if ( rc!=LDAP_SUCCESS ) {
slapi_send_ldap_result( pb, rc, NULL, NULL, 0, NULL );
PR_Unlock( db->ldif_lock );
return( 1 );
}
/*find the attribute*/
if ( slapi_entry_attr_find( e->lde_e, type, &attr ) != 0 ) {
slapi_send_ldap_result( pb, LDAP_NO_SUCH_ATTRIBUTE, NULL, NULL, 0, NULL );
PR_Unlock( db->ldif_lock );
return( 1 );
}
if ( slapi_attr_value_find( attr, bval ) == 0 ) {
slapi_send_ldap_result( pb, LDAP_COMPARE_TRUE, NULL, NULL, 0, NULL );
PR_Unlock( db->ldif_lock );
return( 0 );
}
slapi_send_ldap_result( pb, LDAP_COMPARE_FALSE, NULL, NULL, 0, NULL );
PR_Unlock( db->ldif_lock );
LDAPDebug( LDAP_DEBUG_TRACE, "<= ldif_back_compare\n", 0, 0, 0 );
return( 0 );
}
int ipapwd_entry_checks(Slapi_PBlock *pb, struct slapi_entry *e,
int *is_root, int *is_krb, int *is_smb, int *is_ipant,
char *attr, int acc)
{
Slapi_Value *sval;
int rc;
/* Check ACIs */
slapi_pblock_get(pb, SLAPI_REQUESTOR_ISROOT, is_root);
if (!*is_root) {
/* verify this user is allowed to write a user password */
rc = slapi_access_allowed(pb, e, attr, NULL, acc);
if (rc != LDAP_SUCCESS) {
/* we have no business here, the operation will be denied anyway */
rc = LDAP_SUCCESS;
goto done;
}
}
/* Check if this is a krbPrincial and therefore needs us to generate other
* hashes */
sval = slapi_value_new_string("krbPrincipalAux");
if (!sval) {
rc = LDAP_OPERATIONS_ERROR;
goto done;
}
*is_krb = slapi_entry_attr_has_syntax_value(e, SLAPI_ATTR_OBJECTCLASS, sval);
slapi_value_free(&sval);
sval = slapi_value_new_string("sambaSamAccount");
if (!sval) {
rc = LDAP_OPERATIONS_ERROR;
goto done;
}
*is_smb = slapi_entry_attr_has_syntax_value(e, SLAPI_ATTR_OBJECTCLASS, sval);
slapi_value_free(&sval);
sval = slapi_value_new_string("ipaNTUserAttrs");
if (!sval) {
rc = LDAP_OPERATIONS_ERROR;
goto done;
}
*is_ipant = slapi_entry_attr_has_syntax_value(e, SLAPI_ATTR_OBJECTCLASS,
sval);
slapi_value_free(&sval);
rc = LDAP_SUCCESS;
done:
return rc;
}
/* Code shared between regular and internal add operation */
static void op_shared_add (Slapi_PBlock *pb)
{
Slapi_Operation *operation;
Slapi_Entry *e, *pse;
Slapi_Backend *be = NULL;
int err;
int internal_op, repl_op, legacy_op, lastmod;
char *pwdtype = NULL;
Slapi_Attr *attr = NULL;
Slapi_Entry *referral;
char errorbuf[SLAPI_DSE_RETURNTEXT_SIZE];
struct slapdplugin *p = NULL;
char *proxydn = NULL;
char *proxystr = NULL;
int proxy_err = LDAP_SUCCESS;
char *errtext = NULL;
Slapi_DN *sdn = NULL;
passwdPolicy *pwpolicy;
slapi_pblock_get (pb, SLAPI_OPERATION, &operation);
slapi_pblock_get (pb, SLAPI_ADD_ENTRY, &e);
slapi_pblock_get (pb, SLAPI_IS_REPLICATED_OPERATION, &repl_op);
slapi_pblock_get (pb, SLAPI_IS_LEGACY_REPLICATED_OPERATION, &legacy_op);
internal_op= operation_is_flag_set(operation, OP_FLAG_INTERNAL);
pwpolicy = new_passwdPolicy(pb, slapi_entry_get_dn(e));
/* target spec is used to decide which plugins are applicable for the operation */
operation_set_target_spec (operation, slapi_entry_get_sdn (e));
if ((err = slapi_entry_add_rdn_values(e)) != LDAP_SUCCESS)
{
send_ldap_result(pb, err, NULL, "failed to add RDN values", 0, NULL);
goto done;
}
/* 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))
{
if (proxydn)
{
proxystr = slapi_ch_smprintf(" authzid=\"%s\"", proxydn);
}
if ( !internal_op )
{
slapi_log_access(LDAP_DEBUG_STATS, "conn=%" NSPRIu64 " op=%d ADD dn=\"%s\"%s\n",
pb->pb_conn->c_connid,
operation->o_opid,
slapi_entry_get_dn_const(e),
proxystr ? proxystr : "");
}
else
{
slapi_log_access(LDAP_DEBUG_ARGS, "conn=%s op=%d ADD dn=\"%s\"\n",
LOG_INTERNAL_OP_CON_ID,
LOG_INTERNAL_OP_OP_ID,
slapi_entry_get_dn_const(e));
}
}
/* 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 done;
}
/*
* We could be serving multiple database backends. Select the
* appropriate one.
*/
if ((err = slapi_mapping_tree_select(pb, &be, &referral, errorbuf, sizeof(errorbuf))) != LDAP_SUCCESS) {
send_ldap_result(pb, err, NULL, errorbuf, 0, NULL);
be = NULL;
goto done;
}
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 done;
}
slapi_pblock_set(pb, SLAPI_TARGET_SDN, (void*)operation_get_target_spec (operation));
send_referrals_from_entry(pb,referral);
slapi_entry_free(referral);
goto done;
}
if (!slapi_be_is_flag_set(be,SLAPI_BE_FLAG_REMOTE_DATA)) {
Slapi_Value **unhashed_password_vals = NULL;
Slapi_Value **present_values = NULL;
/* Setting unhashed password to the entry extension. */
if (repl_op) {
/* replicated add ==> get unhashed pw from entry, if any.
* set it to the extension */
slapi_entry_attr_find(e, PSEUDO_ATTR_UNHASHEDUSERPASSWORD, &attr);
if (attr) {
present_values = attr_get_present_values(attr);
valuearray_add_valuearray(&unhashed_password_vals,
present_values, 0);
#if !defined(USE_OLD_UNHASHED)
/* and remove it from the entry. */
slapi_entry_attr_delete(e, PSEUDO_ATTR_UNHASHEDUSERPASSWORD);
#endif
}
} else {
/* ordinary add ==>
* get unhashed pw from userpassword before encrypting it */
/* look for user password attribute */
slapi_entry_attr_find(e, SLAPI_USERPWD_ATTR, &attr);
if (attr) {
Slapi_Value **vals = NULL;
/* Set the backend in the pblock.
* The slapi_access_allowed function
* needs this set to work properly. */
slapi_pblock_set(pb, SLAPI_BACKEND,
slapi_be_select(slapi_entry_get_sdn_const(e)));
/* Check ACI before checking password syntax */
if ((err = slapi_access_allowed(pb, e, SLAPI_USERPWD_ATTR, NULL,
SLAPI_ACL_ADD)) != LDAP_SUCCESS) {
send_ldap_result(pb, err, NULL,
"Insufficient 'add' privilege to the "
"'userPassword' attribute", 0, NULL);
goto done;
}
/*
* Check password syntax, unless this is a pwd admin/rootDN
*/
present_values = attr_get_present_values(attr);
if (!pw_is_pwp_admin(pb, pwpolicy) &&
check_pw_syntax(pb, slapi_entry_get_sdn_const(e),
present_values, NULL, e, 0) != 0) {
/* error result is sent from check_pw_syntax */
goto done;
}
/* pw syntax is valid */
valuearray_add_valuearray(&unhashed_password_vals,
present_values, 0);
valuearray_add_valuearray(&vals, present_values, 0);
pw_encodevals_ext(pb, slapi_entry_get_sdn (e), vals);
add_password_attrs(pb, operation, e);
slapi_entry_attr_replace_sv(e, SLAPI_USERPWD_ATTR, vals);
valuearray_free(&vals);
#if defined(USE_OLD_UNHASHED)
/* Add the unhashed password pseudo-attribute to the entry */
pwdtype =
slapi_attr_syntax_normalize(PSEUDO_ATTR_UNHASHEDUSERPASSWORD);
slapi_entry_add_values_sv(e, pwdtype, unhashed_password_vals);
#endif
}
}
if (unhashed_password_vals &&
(SLAPD_UNHASHED_PW_OFF != config_get_unhashed_pw_switch())) {
/* unhashed_password_vals is consumed if successful. */
err = slapi_pw_set_entry_ext(e, unhashed_password_vals,
SLAPI_EXT_SET_ADD);
if (err) {
valuearray_free(&unhashed_password_vals);
}
}
#if defined(THISISTEST)
{
/* test code to retrieve an unhashed pw from the entry extention &
* PSEUDO_ATTR_UNHASHEDUSERPASSWORD attribute */
char *test_str = slapi_get_first_clear_text_pw(e);
if (test_str) {
slapi_log_err(SLAPI_LOG_ERR,
"Value from extension: %s\n", test_str);
slapi_ch_free_string(&test_str);
}
#if defined(USE_OLD_UNHASHED)
test_str = slapi_entry_attr_get_charptr(e,
PSEUDO_ATTR_UNHASHEDUSERPASSWORD);
if (test_str) {
slapi_log_err(SLAPI_LOG_ERR,
"Value from attr: %s\n", test_str);
slapi_ch_free_string(&test_str);
}
#endif /* USE_OLD_UNHASHED */
}
#endif /* THISISTEST */
/* look for multiple backend local credentials or replication local credentials */
for ( p = get_plugin_list(PLUGIN_LIST_REVER_PWD_STORAGE_SCHEME); p != NULL && !repl_op;
p = p->plg_next )
{
char *L_attr = NULL;
int i=0;
/* Get the appropriate decoding function */
for ( L_attr = p->plg_argv[i]; i<p->plg_argc; L_attr = p->plg_argv[++i])
{
/* look for multiple backend local credentials or replication local credentials */
char *L_normalized = slapi_attr_syntax_normalize(L_attr);
slapi_entry_attr_find(e, L_normalized, &attr);
if (attr)
{
Slapi_Value **present_values = NULL;
Slapi_Value **vals = NULL;
present_values= attr_get_present_values(attr);
valuearray_add_valuearray(&vals, present_values, 0);
pw_rever_encode(vals, L_normalized);
slapi_entry_attr_replace_sv(e, L_normalized, vals);
valuearray_free(&vals);
}
if (L_normalized)
slapi_ch_free ((void**)&L_normalized);
}
}
}
slapi_pblock_set(pb, SLAPI_BACKEND, be);
if (!repl_op)
{
/* can get lastmod only after backend is selected */
slapi_pblock_get(pb, SLAPI_BE_LASTMOD, &lastmod);
if (lastmod && add_created_attrs(pb, e) != 0)
{
send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL,
"cannot insert computed attributes", 0, NULL);
goto done;
}
/* expand objectClass values to reflect the inheritance hierarchy */
slapi_schema_expand_objectclasses( e );
}
/* uniqueid needs to be generated for entries added during legacy replication */
if (legacy_op){
if (add_uniqueid(e) != UID_SUCCESS)
{
send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL,
"cannot insert computed attributes", 0, NULL);
goto done;
}
}
/*
* call the pre-add plugins. if they succeed, call
* the backend add function. then call the post-add
* plugins.
*/
sdn = slapi_sdn_dup(slapi_entry_get_sdn_const(e));
slapi_pblock_set(pb, SLAPI_ADD_TARGET_SDN, (void *)sdn);
if (plugin_call_plugins(pb, internal_op ? SLAPI_PLUGIN_INTERNAL_PRE_ADD_FN :
SLAPI_PLUGIN_PRE_ADD_FN) == SLAPI_PLUGIN_SUCCESS)
{
int rc;
Slapi_Entry *ec;
Slapi_DN *add_target_sdn = NULL;
Slapi_Entry *save_e = NULL;
slapi_pblock_set(pb, SLAPI_PLUGIN, be->be_database);
set_db_default_result_handlers(pb);
/* because be_add frees the entry */
ec = slapi_entry_dup(e);
add_target_sdn = slapi_sdn_dup(slapi_entry_get_sdn_const(ec));
slapi_pblock_get(pb, SLAPI_ADD_TARGET_SDN, &sdn);
slapi_sdn_free(&sdn);
slapi_pblock_set(pb, SLAPI_ADD_TARGET_SDN, add_target_sdn);
if (be->be_add != NULL)
{
rc = (*be->be_add)(pb);
/* backend may change this if errors and not consumed */
slapi_pblock_get(pb, SLAPI_ADD_ENTRY, &save_e);
slapi_pblock_set(pb, SLAPI_ADD_ENTRY, ec);
if (rc == 0)
{
/* acl is not enabled 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_ADD);
}
if (operation_is_flag_set(operation,OP_FLAG_ACTION_LOG_AUDIT))
{
write_audit_log_entry(pb); /* Record the operation in the audit log */
}
slapi_pblock_get(pb, SLAPI_ENTRY_POST_OP, &pse);
do_ps_service(pse, NULL, LDAP_CHANGETYPE_ADD, 0);
/*
* If be_add succeeded, then e is consumed except the resurrect case.
* If it is resurrect, the corresponding tombstone entry is resurrected
* and put into the cache.
* Otherwise, we set e to NULL to prevent freeing it ourselves.
*/
if (operation_is_flag_set(operation,OP_FLAG_RESURECT_ENTRY) && save_e) {
e = save_e;
} else {
e = NULL;
}
}
else
{
/* PR_ASSERT(!save_e); save_e is supposed to be freed in the backend. */
e = save_e;
if (rc == SLAPI_FAIL_DISKFULL)
{
operation_out_of_disk_space();
goto done;
}
/* If the disk is full we don't want to make it worse ... */
if (operation_is_flag_set(operation,OP_FLAG_ACTION_LOG_AUDIT))
{
write_auditfail_log_entry(pb); /* Record the operation in the audit log */
}
}
}
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_ADD_FN :
SLAPI_PLUGIN_POST_ADD_FN);
slapi_entry_free(ec);
}
slapi_pblock_get(pb, SLAPI_ADD_TARGET_SDN, &sdn);
slapi_sdn_free(&sdn);
done:
if (be)
slapi_be_Unlock(be);
slapi_pblock_get(pb, SLAPI_ENTRY_POST_OP, &pse);
slapi_entry_free(pse);
slapi_ch_free((void **)&operation->o_params.p.p_add.parentuniqueid);
slapi_entry_free(e);
slapi_pblock_set(pb, SLAPI_ADD_ENTRY, NULL);
slapi_ch_free((void**)&pwdtype);
slapi_ch_free_string(&proxydn);
slapi_ch_free_string(&proxystr);
}
