void generate_operation (Operation *op, int csn)
{
/* generate operation type */
op->type = slapi_rand () % OP_END;
/* generate value to which operation applies */
op->value_index = slapi_rand () % sim.value_count;
op->csn = csn;
}
char *
crypt_pw_enc( const char *pwd )
{
char *cry, salt[3];
char *enc= NULL;
long v;
static unsigned int seed = 0;
if ( seed == 0)
{
seed = (unsigned int)slapi_rand();
}
v = slapi_rand_r(&seed);
salt[0] = itoa64[v & 0x3f];
v >>= 6;
salt[1] = itoa64[v & 0x3f];
salt[2] = '\0';
PR_Lock(cryptlock);
cry = crypt( pwd, salt );
if ( cry != NULL )
{
enc = slapi_ch_smprintf("%c%s%c%s", PWD_HASH_PREFIX_START, CRYPT_SCHEME_NAME, PWD_HASH_PREFIX_END, cry );
}
PR_Unlock(cryptlock);
return( enc );
}
void generate_operation (Operation *op, int csn, int *last_dn_index)
{
/* generate operation type */
op->type = slapi_rand () % OP_END;
/* generate value to which operation applies */
op->value_index = slapi_rand () % sim.value_count;
op->csn = csn;
/* generate new distinguished value */
if (op->type == OP_RENAME_ENTRY)
{
op->old_dn_index = *last_dn_index;
while (op->value_index == op->old_dn_index)
op->value_index = slapi_rand () % sim.value_count;
*last_dn_index = op->value_index;
}
}
void generate_operations (Operation **ops, int *op_count)
{
int i;
/* generate number operations in the sequence */
*op_count = slapi_rand () % (MAX_OPS / 2) + 1;
*ops = (Operation *)malloc (*op_count * sizeof (Operation));
for (i = 0; i < *op_count; i ++)
{
generate_operation (&((*ops)[i]), i + 1);
}
}
/* simulate local clock being set back */
static void
_csngen_local_tester_main (void *data)
{
CSNGen *gen = (CSNGen*)data;
PR_ASSERT (gen);
while (!s_must_exit)
{
/* sleep for 30 seconds */
DS_Sleep (PR_SecondsToInterval(60));
g_sampled_time -= slapi_rand () % 100;
csngen_dump_state (gen);
}
PR_AtomicDecrement (&s_thread_count);
}
/* simulate clock skew with remote servers that causes
generator to advance its remote offset */
static void
_csngen_remote_tester_main (void *data)
{
CSNGen *gen = (CSNGen*)data;
CSN *csn;
time_t csn_time;
int rc;
PR_ASSERT (gen);
while (!s_must_exit)
{
rc = csngen_new_csn (gen, &csn, PR_FALSE);
if (rc != CSN_SUCCESS)
{
slapi_log_err(SLAPI_LOG_ERR, "_csngen_remote_tester_main",
"Failed to generate csn; csn error - %d\n", rc);
}
else
{
csn_time = csn_get_time(csn);
csn_set_time (csn, csn_time + slapi_rand () % 100);
rc = csngen_adjust_time (gen, csn);
if (rc != CSN_SUCCESS)
{
slapi_log_err(SLAPI_LOG_ERR, "_csngen_remote_tester_main",
"Failed to adjust generator's time; csn error - %d\n", rc);
}
csngen_dump_state (gen);
}
csn_free(&csn);
/* sleep for 30 seconds */
DS_Sleep (PR_SecondsToInterval(60));
}
PR_AtomicDecrement (&s_thread_count);
}
int
ldbm_back_modify( Slapi_PBlock *pb )
{
backend *be;
ldbm_instance *inst = NULL;
struct ldbminfo *li;
struct backentry *e = NULL, *ec = NULL;
struct backentry *original_entry = NULL, *tmpentry = NULL;
Slapi_Entry *postentry = NULL;
LDAPMod **mods = NULL;
LDAPMod **mods_original = NULL;
Slapi_Mods smods = {0};
back_txn txn;
back_txnid parent_txn;
modify_context ruv_c = {0};
int ruv_c_init = 0;
int retval = -1;
char *msg;
char *errbuf = NULL;
int retry_count = 0;
int disk_full = 0;
int ldap_result_code= LDAP_SUCCESS;
char *ldap_result_message= NULL;
int rc = 0;
Slapi_Operation *operation;
entry_address *addr;
int is_fixup_operation= 0;
int is_ruv = 0; /* True if the current entry is RUV */
CSN *opcsn = NULL;
int repl_op;
int opreturn = 0;
int mod_count = 0;
int not_an_error = 0;
int fixup_tombstone = 0;
int ec_locked = 0;
int result_sent = 0;
slapi_pblock_get( pb, SLAPI_BACKEND, &be);
slapi_pblock_get( pb, SLAPI_PLUGIN_PRIVATE, &li );
slapi_pblock_get( pb, SLAPI_TARGET_ADDRESS, &addr );
slapi_pblock_get( pb, SLAPI_MODIFY_MODS, &mods );
slapi_pblock_get( pb, SLAPI_TXN, (void**)&parent_txn );
slapi_pblock_get( pb, SLAPI_IS_REPLICATED_OPERATION, &repl_op);
slapi_pblock_get( pb, SLAPI_OPERATION, &operation );
fixup_tombstone = operation_is_flag_set(operation, OP_FLAG_TOMBSTONE_FIXUP);
dblayer_txn_init(li,&txn); /* must do this before first goto error_return */
/* the calls to perform searches require the parent txn if any
so set txn to the parent_txn until we begin the child transaction */
if (parent_txn) {
txn.back_txn_txn = parent_txn;
} else {
parent_txn = txn.back_txn_txn;
slapi_pblock_set( pb, SLAPI_TXN, parent_txn );
}
if (NULL == operation)
{
ldap_result_code = LDAP_OPERATIONS_ERROR;
goto error_return;
}
is_fixup_operation = operation_is_flag_set(operation, OP_FLAG_REPL_FIXUP);
is_ruv = operation_is_flag_set(operation, OP_FLAG_REPL_RUV);
inst = (ldbm_instance *) be->be_instance_info;
if (NULL == addr)
{
goto error_return;
}
if (inst && inst->inst_ref_count) {
slapi_counter_increment(inst->inst_ref_count);
} else {
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"Instance \"%s\" does not exist.\n",
inst ? inst->inst_name : "null instance");
goto error_return;
}
/* no need to check the dn syntax as this is a replicated op */
if(!repl_op){
ldap_result_code = slapi_dn_syntax_check(pb, slapi_sdn_get_dn(addr->sdn), 1);
if (ldap_result_code)
{
ldap_result_code = LDAP_INVALID_DN_SYNTAX;
slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, &ldap_result_message);
goto error_return;
}
}
/* The dblock serializes writes to the database,
* which reduces deadlocking in the db code,
* which means that we run faster.
*
* But, this lock is re-enterant for the fixup
* operations that the URP code in the Replication
* plugin generates.
*
* SERIALLOCK is moved to dblayer_txn_begin along with exposing be
* transaction to plugins (see slapi_back_transaction_* APIs).
*
if(SERIALLOCK(li) && !operation_is_flag_set(operation,OP_FLAG_REPL_FIXUP)) {
dblayer_lock_backend(be);
dblock_acquired= 1;
}
*/
if ( MANAGE_ENTRY_BEFORE_DBLOCK(li)) {
/* find and lock the entry we are about to modify */
if (fixup_tombstone) {
e = find_entry2modify_only_ext( pb, be, addr, TOMBSTONE_INCLUDED, &txn, &result_sent );
} else {
e = find_entry2modify( pb, be, addr, &txn, &result_sent );
}
if (e == NULL) {
ldap_result_code = -1;
goto error_return; /* error result sent by find_entry2modify() */
}
}
txn.back_txn_txn = NULL; /* ready to create the child transaction */
for (retry_count = 0; retry_count < RETRY_TIMES; retry_count++) {
int cache_rc = 0;
int new_mod_count = 0;
if (txn.back_txn_txn && (txn.back_txn_txn != parent_txn)) {
/* don't release SERIAL LOCK */
dblayer_txn_abort_ext(li, &txn, PR_FALSE);
slapi_pblock_set(pb, SLAPI_TXN, parent_txn);
/*
* Since be_txn_preop functions could have modified the entry/mods,
* We need to grab the current mods, free them, and restore the
* originals. Same thing for the entry.
*/
slapi_pblock_get(pb, SLAPI_MODIFY_MODS, &mods);
ldap_mods_free(mods, 1);
slapi_pblock_set(pb, SLAPI_MODIFY_MODS, copy_mods(mods_original));
/* reset ec set cache in id2entry_add_ext */
if (ec) {
/* must duplicate ec before returning it to cache,
* which could free the entry. */
if ((tmpentry = backentry_dup(original_entry?original_entry:ec)) == NULL) {
ldap_result_code= LDAP_OPERATIONS_ERROR;
goto error_return;
}
if (cache_is_in_cache(&inst->inst_cache, ec)) {
CACHE_REMOVE(&inst->inst_cache, ec);
}
CACHE_RETURN(&inst->inst_cache, &ec);
slapi_pblock_set( pb, SLAPI_MODIFY_EXISTING_ENTRY, original_entry->ep_entry );
ec = original_entry;
original_entry = tmpentry;
tmpentry = NULL;
}
if (ruv_c_init) {
/* reset the ruv txn stuff */
modify_term(&ruv_c, be);
ruv_c_init = 0;
}
slapi_log_err(SLAPI_LOG_BACKLDBM, "ldbm_back_modify",
"Modify Retrying Transaction\n");
#ifndef LDBM_NO_BACKOFF_DELAY
{
PRIntervalTime interval;
interval = PR_MillisecondsToInterval(slapi_rand() % 100);
DS_Sleep(interval);
}
#endif
}
/* Nothing above here modifies persistent store, everything after here is subject to the transaction */
/* dblayer_txn_begin holds SERIAL lock,
* which should be outside of locking the entry (find_entry2modify) */
if (0 == retry_count) {
/* First time, hold SERIAL LOCK */
retval = dblayer_txn_begin(be, parent_txn, &txn);
} else {
/* Otherwise, no SERIAL LOCK */
retval = dblayer_txn_begin_ext(li, parent_txn, &txn, PR_FALSE);
}
if (0 != retval) {
if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1;
ldap_result_code= LDAP_OPERATIONS_ERROR;
goto error_return;
}
/* stash the transaction for plugins */
slapi_pblock_set(pb, SLAPI_TXN, txn.back_txn_txn);
if (0 == retry_count) { /* just once */
if ( !MANAGE_ENTRY_BEFORE_DBLOCK(li)) {
/* find and lock the entry we are about to modify */
if (fixup_tombstone) {
e = find_entry2modify_only_ext( pb, be, addr, TOMBSTONE_INCLUDED, &txn, &result_sent );
} else {
e = find_entry2modify( pb, be, addr, &txn, &result_sent );
}
if (e == NULL) {
ldap_result_code = -1;
goto error_return; /* error result sent by find_entry2modify() */
}
}
if ( !is_fixup_operation && !fixup_tombstone)
{
if (!repl_op && slapi_entry_flag_is_set(e->ep_entry, SLAPI_ENTRY_FLAG_TOMBSTONE))
{
ldap_result_code = LDAP_UNWILLING_TO_PERFORM;
ldap_result_message = "Operation not allowed on tombstone entry.";
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"Attempt to modify a tombstone entry %s\n",
slapi_sdn_get_dn(slapi_entry_get_sdn_const( e->ep_entry )));
goto error_return;
}
opcsn = operation_get_csn (operation);
if (NULL == opcsn && operation->o_csngen_handler)
{
/*
* Current op is a user request. Opcsn will be assigned
* if the dn is in an updatable replica.
*/
opcsn = entry_assign_operation_csn ( pb, e->ep_entry, NULL );
}
if (opcsn)
{
entry_set_maxcsn (e->ep_entry, opcsn);
}
}
/* Save away a copy of the entry, before modifications */
slapi_pblock_set( pb, SLAPI_ENTRY_PRE_OP, slapi_entry_dup( e->ep_entry ));
if ( (ldap_result_code = plugin_call_acl_mods_access( pb, e->ep_entry, mods, &errbuf)) != LDAP_SUCCESS ) {
ldap_result_message= errbuf;
goto error_return;
}
/* create a copy of the entry and apply the changes to it */
if ( (ec = backentry_dup( e )) == NULL ) {
ldap_result_code= LDAP_OPERATIONS_ERROR;
goto error_return;
}
if(!repl_op){
remove_illegal_mods(mods);
}
/* ec is the entry that our bepreop should get to mess with */
slapi_pblock_set( pb, SLAPI_MODIFY_EXISTING_ENTRY, ec->ep_entry );
slapi_pblock_set(pb, SLAPI_RESULT_CODE, &ldap_result_code);
opreturn = plugin_call_plugins(pb, SLAPI_PLUGIN_BE_PRE_MODIFY_FN);
if (opreturn ||
(slapi_pblock_get(pb, SLAPI_RESULT_CODE, &ldap_result_code) && ldap_result_code) ||
(slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &opreturn) && opreturn)) {
slapi_pblock_get(pb, SLAPI_RESULT_CODE, &ldap_result_code);
slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &opreturn);
if (!ldap_result_code) {
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"SLAPI_PLUGIN_BE_PRE_MODIFY_FN "
"returned error but did not set SLAPI_RESULT_CODE\n");
ldap_result_code = LDAP_OPERATIONS_ERROR;
}
if (SLAPI_PLUGIN_NOOP == opreturn) {
not_an_error = 1;
rc = opreturn = LDAP_SUCCESS;
} else if (!opreturn) {
opreturn = SLAPI_PLUGIN_FAILURE;
slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, &opreturn);
}
slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, &ldap_result_message);
goto error_return;
}
/* The Plugin may have messed about with some of the PBlock parameters... ie. mods */
slapi_pblock_get( pb, SLAPI_MODIFY_MODS, &mods );
/* apply the mods, check for syntax, schema problems, etc. */
if (modify_apply_check_expand(pb, operation, mods, e, ec, &postentry,
&ldap_result_code, &ldap_result_message)) {
goto error_return;
}
/* the schema check could have added a repl conflict mod
* get the mods again */
slapi_pblock_get( pb, SLAPI_MODIFY_MODS, &mods );
slapi_mods_init_byref(&smods,mods);
mod_count = slapi_mods_get_num_mods(&smods);
/*
* Grab a copy of the mods and the entry in case the be_txn_preop changes
* the them. If we have a failure, then we need to reset the mods to their
* their original state;
*/
mods_original = copy_mods(mods);
if ( (original_entry = backentry_dup( ec )) == NULL ) {
ldap_result_code= LDAP_OPERATIONS_ERROR;
goto error_return;
}
} /* if (0 == retry_count) just once */
/* call the transaction pre modify plugins just after creating the transaction */
retval = plugin_call_plugins(pb, SLAPI_PLUGIN_BE_TXN_PRE_MODIFY_FN);
if (retval) {
slapi_log_err(SLAPI_LOG_TRACE, "ldbm_back_modify", "SLAPI_PLUGIN_BE_TXN_PRE_MODIFY_FN plugin "
"returned error code %d\n", retval );
slapi_pblock_get(pb, SLAPI_RESULT_CODE, &ldap_result_code);
slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &opreturn);
if (SLAPI_PLUGIN_NOOP == retval) {
not_an_error = 1;
rc = retval = LDAP_SUCCESS;
}
if (!opreturn) {
slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, ldap_result_code ? &ldap_result_code : &retval);
}
slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, &ldap_result_message);
goto error_return;
}
/* the mods might have been changed, so get the latest */
slapi_pblock_get( pb, SLAPI_MODIFY_MODS, &mods );
/* make sure the betxnpreop did not alter any of the mods that
had already previously been applied */
slapi_mods_done(&smods);
slapi_mods_init_byref(&smods,mods);
new_mod_count = slapi_mods_get_num_mods(&smods);
if (new_mod_count < mod_count) {
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"Error: BE_TXN_PRE_MODIFY plugin has removed "
"mods from the original list - mod count was [%d] now [%d] "
"mods will not be applied - mods list changes must be done "
"in the BE_PRE_MODIFY plugin, not the BE_TXN_PRE_MODIFY\n",
mod_count, new_mod_count );
} else if (new_mod_count > mod_count) { /* apply the new betxnpremod mods */
/* apply the mods, check for syntax, schema problems, etc. */
if (modify_apply_check_expand(pb, operation, &mods[mod_count], e, ec, &postentry,
&ldap_result_code, &ldap_result_message)) {
goto error_return;
}
} /* else if new_mod_count == mod_count then betxnpremod plugin did nothing */
/*
* Update the ID to Entry index.
* Note that id2entry_add replaces the entry, so the Entry ID
* stays the same.
*/
retval = id2entry_add_ext( be, ec, &txn, 1, &cache_rc );
if (DB_LOCK_DEADLOCK == retval)
{
/* Abort and re-try */
continue;
}
if (0 != retval) {
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"id2entry_add failed, err=%d %s\n",
retval, (msg = dblayer_strerror( retval )) ? msg : "");
if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1;
MOD_SET_ERROR(ldap_result_code, LDAP_OPERATIONS_ERROR, retry_count);
goto error_return;
}
retval = index_add_mods( be, mods, e, ec, &txn );
if (DB_LOCK_DEADLOCK == retval)
{
/* Abort and re-try */
continue;
}
if (0 != retval) {
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"index_add_mods failed, err=%d %s\n",
retval, (msg = dblayer_strerror( retval )) ? msg : "");
if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1;
MOD_SET_ERROR(ldap_result_code, LDAP_OPERATIONS_ERROR, retry_count);
goto error_return;
}
/*
* Remove the old entry from the Virtual List View indexes.
* Add the new entry to the Virtual List View indexes.
* If the entry is ruv, no need to update vlv.
*/
if (!is_ruv) {
retval= vlv_update_all_indexes(&txn, be, pb, e, ec);
if (DB_LOCK_DEADLOCK == retval)
{
/* Abort and re-try */
continue;
}
if (0 != retval) {
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"vlv_update_index failed, err=%d %s\n",
retval, (msg = dblayer_strerror( retval )) ? msg : "");
if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1;
MOD_SET_ERROR(ldap_result_code,
LDAP_OPERATIONS_ERROR, retry_count);
goto error_return;
}
}
if (!is_ruv && !is_fixup_operation && !NO_RUV_UPDATE(li)) {
ruv_c_init = ldbm_txn_ruv_modify_context( pb, &ruv_c );
if (-1 == ruv_c_init) {
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"ldbm_txn_ruv_modify_context failed to construct RUV modify context\n");
ldap_result_code= LDAP_OPERATIONS_ERROR;
retval = 0;
goto error_return;
}
}
if (ruv_c_init) {
retval = modify_update_all( be, pb, &ruv_c, &txn );
if (DB_LOCK_DEADLOCK == retval) {
/* Abort and re-try */
continue;
}
if (0 != retval) {
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"modify_update_all failed, err=%d %s\n", retval,
(msg = dblayer_strerror( retval )) ? msg : "");
if (LDBM_OS_ERR_IS_DISKFULL(retval))
disk_full = 1;
ldap_result_code= LDAP_OPERATIONS_ERROR;
goto error_return;
}
}
if (0 == retval) {
break;
}
}
if (retry_count == RETRY_TIMES) {
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"Retry count exceeded in modify\n");
ldap_result_code= LDAP_BUSY;
goto error_return;
}
if (ruv_c_init) {
if (modify_switch_entries(&ruv_c, be) != 0 ) {
ldap_result_code= LDAP_OPERATIONS_ERROR;
slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify",
"modify_switch_entries failed\n");
goto error_return;
}
}
if (cache_replace( &inst->inst_cache, e, ec ) != 0 ) {
MOD_SET_ERROR(ldap_result_code, LDAP_OPERATIONS_ERROR, retry_count);
goto error_return;
}
/* e uncached */
/* we must return both e (which has been deleted) and new entry ec to cache */
/* cache_replace removes e from the cache hash tables */
cache_unlock_entry( &inst->inst_cache, e );
CACHE_RETURN( &inst->inst_cache, &e );
/* lock new entry in cache to prevent usage until we are complete */
cache_lock_entry( &inst->inst_cache, ec );
ec_locked = 1;
postentry = slapi_entry_dup( ec->ep_entry );
slapi_pblock_set( pb, SLAPI_ENTRY_POST_OP, postentry );
/* invalidate virtual cache */
ec->ep_entry->e_virtual_watermark = 0;
/*
* LP Fix of crash when the commit will fail:
* If the commit fail, the common error path will
* try to unlock the entry again and crash (PR_ASSERT
* in debug mode.
* By just setting e to NULL, we avoid this. It's OK since
* we don't use e after that in the normal case.
*/
e = NULL;
/* call the transaction post modify plugins just before the commit */
if ((retval = plugin_call_plugins(pb, SLAPI_PLUGIN_BE_TXN_POST_MODIFY_FN))) {
slapi_log_err(SLAPI_LOG_TRACE, "ldbm_back_modify",
"SLAPI_PLUGIN_BE_TXN_POST_MODIFY_FN plugin "
"returned error code %d\n", retval );
if (!ldap_result_code) {
slapi_pblock_get(pb, SLAPI_RESULT_CODE, &ldap_result_code);
}
if (!opreturn) {
slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &opreturn);
}
if (!opreturn) {
slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, ldap_result_code ? &ldap_result_code : &retval);
}
slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, &ldap_result_message);
goto error_return;
}
/* Release SERIAL LOCK */
retval = dblayer_txn_commit(be, &txn);
/* after commit - txn is no longer valid - replace SLAPI_TXN with parent */
slapi_pblock_set(pb, SLAPI_TXN, parent_txn);
if (0 != retval) {
if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1;
ldap_result_code= LDAP_OPERATIONS_ERROR;
goto error_return;
}
rc= 0;
goto common_return;
error_return:
if ( postentry != NULL )
{
slapi_entry_free( postentry );
postentry = NULL;
slapi_pblock_set( pb, SLAPI_ENTRY_POST_OP, NULL );
}
if (retval == DB_RUNRECOVERY) {
dblayer_remember_disk_filled(li);
ldbm_nasty("ldbm_back_modify","Modify",81,retval);
disk_full = 1;
}
if (disk_full) {
rc= return_on_disk_full(li);
} else {
if (txn.back_txn_txn && (txn.back_txn_txn != parent_txn)) {
/* make sure SLAPI_RESULT_CODE and SLAPI_PLUGIN_OPRETURN are set */
int val = 0;
slapi_pblock_get(pb, SLAPI_RESULT_CODE, &val);
if (!val) {
if (!ldap_result_code) {
ldap_result_code = LDAP_OPERATIONS_ERROR;
}
slapi_pblock_set(pb, SLAPI_RESULT_CODE, &ldap_result_code);
}
slapi_pblock_get( pb, SLAPI_PLUGIN_OPRETURN, &val );
if (!val) {
opreturn = -1;
slapi_pblock_set( pb, SLAPI_PLUGIN_OPRETURN, &opreturn );
}
/* call the transaction post modify plugins just before the abort */
/* plugins called before abort should check for the OPRETURN or RESULT_CODE
and skip processing if they don't want do anything - some plugins that
keep track of a counter (usn, dna) may want to "rollback" the counter
in this case */
if ((retval = plugin_call_plugins(pb, SLAPI_PLUGIN_BE_TXN_POST_MODIFY_FN))) {
slapi_log_err(SLAPI_LOG_TRACE, "ldbm_back_modify",
"SLAPI_PLUGIN_BE_TXN_POST_MODIFY_FN plugin returned error code %d\n", retval );
slapi_pblock_get(pb, SLAPI_RESULT_CODE, &ldap_result_code);
slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, &ldap_result_message);
slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &opreturn);
if (!opreturn) {
slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, ldap_result_code ? &ldap_result_code : &retval);
}
}
/* It is safer not to abort when the transaction is not started. */
/* Release SERIAL LOCK */
dblayer_txn_abort(be, &txn); /* abort crashes in case disk full */
/* txn is no longer valid - reset the txn pointer to the parent */
slapi_pblock_set(pb, SLAPI_TXN, parent_txn);
}
if (!not_an_error) {
rc = SLAPI_FAIL_GENERAL;
}
}
/* if ec is in cache, remove it, then add back e if we still have it */
if (inst && cache_is_in_cache(&inst->inst_cache, ec)) {
CACHE_REMOVE( &inst->inst_cache, ec );
/* if ec was in cache, e was not - add back e */
if (e) {
if (CACHE_ADD( &inst->inst_cache, e, NULL ) < 0) {
slapi_log_err(SLAPI_LOG_CACHE, "ldbm_back_modify", "CACHE_ADD %s failed\n",
slapi_entry_get_dn(e->ep_entry));
}
}
}
common_return:
slapi_mods_done(&smods);
if (inst) {
if (ec_locked || cache_is_in_cache(&inst->inst_cache, ec)) {
cache_unlock_entry(&inst->inst_cache, ec);
} else if (e) {
/* if ec was not in cache, cache_replace was not done.
* i.e., e was not unlocked. */
cache_unlock_entry(&inst->inst_cache, e);
CACHE_RETURN(&inst->inst_cache, &e);
}
CACHE_RETURN(&inst->inst_cache, &ec);
if (inst->inst_ref_count) {
slapi_counter_decrement(inst->inst_ref_count);
}
}
/* result code could be used in the bepost plugin functions. */
slapi_pblock_set(pb, SLAPI_RESULT_CODE, &ldap_result_code);
/* The bepostop is called even if the operation fails. */
if (!disk_full)
plugin_call_plugins (pb, SLAPI_PLUGIN_BE_POST_MODIFY_FN);
if (ruv_c_init) {
modify_term(&ruv_c, be);
}
if (ldap_result_code == -1) {
/* Reset to LDAP_NO_SUCH_OBJECT*/
ldap_result_code = LDAP_NO_SUCH_OBJECT;
slapi_pblock_set(pb, SLAPI_RESULT_CODE, &ldap_result_code);
} else {
if (not_an_error) {
/* This is mainly used by urp. Solved conflict is not an error.
* And we don't want the supplier to halt sending the updates. */
ldap_result_code = LDAP_SUCCESS;
}
if (!result_sent) {
/* result is already sent in find_entry. */
slapi_send_ldap_result( pb, ldap_result_code, NULL, ldap_result_message, 0, NULL );
}
}
/* free our backups */
ldap_mods_free(mods_original, 1);
backentry_free(&original_entry);
backentry_free(&tmpentry);
slapi_ch_free_string(&errbuf);
return rc;
}