Slapi_Value *
slapi_value_new_string(const char *s)
{
Slapi_Value *v= value_new(NULL,CSN_TYPE_UNKNOWN,NULL);
slapi_value_set_string(v, s);
return v;
}
Slapi_Value *
slapi_value_init_string(Slapi_Value *v,const char *s)
{
value_init(v,NULL,CSN_TYPE_UNKNOWN,NULL);
slapi_value_set_string(v,s);
return v;
}
/* Pre-operation plug-in function */
int
testpreop_add( Slapi_PBlock *pb )
{
Slapi_Entry *e;
Slapi_Attr *a;
Slapi_Value *v;
struct berval **bvals;
int i, hint;
char *tmp;
const char *s;
/* Get the entry that is about to be added. */
if ( slapi_pblock_get( pb, SLAPI_ADD_ENTRY, &e ) != 0 ) {
slapi_log_err(SLAPI_LOG_PLUGIN,
"testpreop_add", "Could not get entry\n" );
return( -1 );
}
/* Prepend the name "BOB" to the value of the cn attribute
in the entry. */
if ( slapi_entry_attr_find( e, "cn", &a ) == 0 ) {
for ( hint = slapi_attr_first_value( a, &v ); hint != -1;
hint = slapi_attr_next_value( a, hint, &v )) {
s = slapi_value_get_string( v );
tmp = (char *) malloc( 5 + strlen( s ));
strcpy( tmp, "BOB " );
strcat( tmp + 4, s );
slapi_value_set_string( v, tmp );
free( tmp );
}
}
return( 0 ); /* allow the operation to continue */
}
/*
* The string is passed in by value.
*/
void
valueset_add_string(Slapi_ValueSet *vs, const char *s, CSNType t, const CSN *csn)
{
Slapi_Value v;
value_init(&v,NULL,t,csn);
slapi_value_set_string(&v,s);
valuearray_add_value(&vs->va,&v);
value_done(&v);
}
void
valueset_remove_string(const Slapi_Attr *a, Slapi_ValueSet *vs, const char *s)
{
Slapi_Value v;
Slapi_Value *removed;
value_init(&v,NULL,CSN_TYPE_NONE,NULL);
slapi_value_set_string(&v,s);
removed = valuearray_remove_value(a, vs->va, &v);
if(removed) {
slapi_value_free(&removed);
}
value_done(&v);
}
/*
* Return 0 for OK,
* -1 for Ignore or Error depending on SLAPI_RESULT_CODE,
* >0 for action code
* Action Code Bit 0: Fetch existing entry.
* Action Code Bit 1: Fetch parent entry.
* The function is called as a be pre-op on consumers.
*/
int
urp_add_operation( Slapi_PBlock *pb )
{
Slapi_Entry *existing_uniqueid_entry;
Slapi_Entry *existing_dn_entry;
Slapi_Entry *addentry;
const char *adduniqueid;
CSN *opcsn;
const char *basedn;
char sessionid[REPL_SESSION_ID_SIZE];
int r;
int op_result= 0;
int rc= 0; /* OK */
Slapi_DN *sdn = NULL;
if ( slapi_op_abandoned(pb) )
{
return rc;
}
get_repl_session_id (pb, sessionid, &opcsn);
slapi_pblock_get( pb, SLAPI_ADD_EXISTING_UNIQUEID_ENTRY, &existing_uniqueid_entry );
if (existing_uniqueid_entry!=NULL)
{
/*
* An entry with this uniqueid already exists.
* - It could be a replay of the same Add, or
* - It could be a UUID generation collision, or
*/
/*
* This operation won't be replayed. That is, this CSN won't update
* the max csn in RUV. The CSN is left uncommitted in RUV unless an
* error is set to op_result. Just to get rid of this CSN from RUV,
* setting an error to op_result
*/
/* op_result = LDAP_SUCCESS; */
slapi_log_error(slapi_log_urp, sessionid,
"urp_add (%s): an entry with this uniqueid already exists.\n",
slapi_entry_get_dn_const(existing_uniqueid_entry));
op_result= LDAP_UNWILLING_TO_PERFORM;
slapi_pblock_set(pb, SLAPI_RESULT_CODE, &op_result);
rc = SLAPI_PLUGIN_NOOP; /* Ignore this Operation */
PROFILE_POINT; /* Add Conflict; UniqueID Exists; Ignore */
goto bailout;
}
slapi_pblock_get( pb, SLAPI_ADD_ENTRY, &addentry );
slapi_pblock_get( pb, SLAPI_ADD_EXISTING_DN_ENTRY, &existing_dn_entry );
if (existing_dn_entry==NULL) /* The target DN does not exist */
{
/* Check for parent entry... this could be an orphan. */
Slapi_Entry *parententry;
slapi_pblock_get( pb, SLAPI_ADD_PARENT_ENTRY, &parententry );
rc = urp_add_resolve_parententry (pb, sessionid, addentry, parententry, opcsn);
PROFILE_POINT; /* Add Entry */
goto bailout;
}
/*
* Naming conflict: an entry with the target DN already exists.
* Compare the DistinguishedNameCSN of the existing entry
* and the OperationCSN. The smaller CSN wins. The loser changes
* its RDN to uniqueid+baserdn, and adds operational attribute
* ATTR_NSDS5_REPLCONFLIC.
*/
basedn = slapi_entry_get_ndn (addentry);
adduniqueid = slapi_entry_get_uniqueid (addentry);
r = csn_compare (entry_get_dncsn(existing_dn_entry), opcsn);
if (r<0)
{
/* Entry to be added is a loser */
char *newdn= get_dn_plus_uniqueid (sessionid, basedn, adduniqueid);
if(newdn==NULL)
{
op_result= LDAP_OPERATIONS_ERROR;
slapi_pblock_set(pb, SLAPI_RESULT_CODE, &op_result);
rc = SLAPI_PLUGIN_NOOP; /* Abort this Operation */
slapi_log_error(slapi_log_urp, sessionid,
"urp_add (%s): Add conflict; Unique ID (%s) already in RDN\n",
basedn, adduniqueid);
PROFILE_POINT; /* Add Conflict; Entry Exists; Unique ID already in RDN - Abort this update. */
}
else
{
/* Add the nsds5ReplConflict attribute in the mods */
Slapi_Attr *attr = NULL;
Slapi_Value **vals = NULL;
Slapi_RDN *rdn;
char buf[BUFSIZ];
PR_snprintf(buf, BUFSIZ, "%s %s", REASON_ANNOTATE_DN, basedn);
if (slapi_entry_attr_find (addentry, ATTR_NSDS5_REPLCONFLICT, &attr) == 0)
{
/* ATTR_NSDS5_REPLCONFLICT exists */
slapi_log_error(SLAPI_LOG_FATAL, sessionid,
"urp_add: New entry has nsds5ReplConflict already\n");
vals = attr_get_present_values (attr); /* this returns a pointer to the contents */
}
if ( vals == NULL || *vals == NULL )
{
/* Add new attribute */
slapi_entry_add_string (addentry, ATTR_NSDS5_REPLCONFLICT, buf);
}
else
{
/*
* Replace old attribute. We don't worry about the index
* change here since the entry is yet to be added.
*/
slapi_value_set_string (*vals, buf);
}
/* slapi_pblock_get(pb, SLAPI_ADD_TARGET, &dn); */
slapi_pblock_get(pb, SLAPI_ADD_TARGET_SDN, &sdn);
slapi_sdn_free(&sdn);
slapi_entry_set_normdn(addentry, newdn); /* dn: passin */
sdn = slapi_sdn_dup(slapi_entry_get_sdn_const(addentry));
slapi_pblock_set(pb, SLAPI_ADD_TARGET_SDN, sdn);
rdn = slapi_rdn_new_sdn ( slapi_entry_get_sdn_const(addentry) );
slapi_log_error (slapi_log_urp, sessionid,
"urp_add: Naming conflict ADD. Add %s instead\n",
slapi_rdn_get_rdn(rdn));
slapi_rdn_free(&rdn);
rc= slapi_setbit_int(rc,SLAPI_RTN_BIT_FETCH_EXISTING_DN_ENTRY);
PROFILE_POINT; /* Add Conflict; Entry Exists; Rename Operation Entry */
}
}
else if(r>0)
{
/* Existing entry is a loser */
if (!urp_annotate_dn(sessionid, existing_dn_entry, opcsn, "ADD"))
{
op_result= LDAP_OPERATIONS_ERROR;
slapi_pblock_set(pb, SLAPI_RESULT_CODE, &op_result);
slapi_log_error(slapi_log_urp, sessionid,
"urp_add (%s): Entry to be added is a loser; "
"urp_annotate_dn failed.\n", basedn);
rc = SLAPI_PLUGIN_NOOP; /* Ignore this Operation */
}
else
{
/* The backend add code should now search for the existing entry again. */
rc= slapi_setbit_int(rc,SLAPI_RTN_BIT_FETCH_EXISTING_DN_ENTRY);
rc= slapi_setbit_int(rc,SLAPI_RTN_BIT_FETCH_PARENT_ENTRY);
}
PROFILE_POINT; /* Add Conflict; Entry Exists; Rename Existing Entry */
}
else /* r==0 */
{
/* The CSN of the Operation and the Entry DN are the same.
* This could only happen if:
* a) There are two replicas with the same ReplicaID.
* b) We've seen the Operation before.
* Let's go with (b) and ignore the little bastard.
*/
/*
* This operation won't be replayed. That is, this CSN won't update
* the max csn in RUV. The CSN is left uncommitted in RUV unless an
* error is set to op_result. Just to get rid of this CSN from RUV,
* setting an error to op_result
*/
/* op_result = LDAP_SUCCESS; */
slapi_log_error(slapi_log_urp, sessionid,
"urp_add (%s): The CSN of the Operation and the Entry DN are the same.",
slapi_entry_get_dn_const(existing_dn_entry));
op_result= LDAP_UNWILLING_TO_PERFORM;
slapi_pblock_set(pb, SLAPI_RESULT_CODE, &op_result);
rc = SLAPI_PLUGIN_NOOP; /* Ignore this Operation */
PROFILE_POINT; /* Add Conflict; Entry Exists; Same CSN */
}
bailout:
return rc;
}
