/* returns non-zero if switch set a prefix */
int handle_set_request( int fd, int itf, Msgs *msgs, Message *m ){
VarBindList *vbl;
VarBind *varbind;
AsnOid *netprefix_oid, *set_oid;
/* use varbind to compare OIDs of incoming message and that of
an address status message */
varbind = (VarBind *)FIRST_LIST_ELMT(
m->data->a.get_request->variable_bindings );
if( AsnOidCompare( &atmfNetPrefixStatus, &varbind->name ) == AsnOidRoot ){
vbl = msgs->set->data->a.set_request->variable_bindings;
set_oid = &((VarBind *)FIRST_LIST_ELMT( vbl ))->name;
netprefix_oid = accessNetPrefix();
if( netprefix_oid != NULL ){
diag( COMPONENT, DIAG_INFO,
"switch registered a network prefix");
set_oid->octetLen = ADDRESS_LEN + 1;
AsnOidAppend( set_oid, netprefix_oid );
AsnOidAppend( set_oid, esi_oid );
update_nsap( itf, netprefix_oid, esi_oid );
return 1;
} else{
diag( COMPONENT, DIAG_INFO,
"switch did not register prefix?" );
}
}
return 0;
}
AsnInt getNetPrefix(VarBind *varbind, Variable *var)
{
int cmp;
NetPrefixNode *prefix;
AsnOid *varBindName;
diag(COMPONENT,DIAG_DEBUG,"getNetPrefix");
varBindName = &varbind->name;
if(AsnOidSize(varBindName) != NETPREFIX_LEN + INDEX_LEN ||
varbind->name.octs[NETPREFIX_LEN] != LOCALUNI ||
varbind->name.octs[NETPREFIX_LEN + 1] != NETPREFIX_STRINGLEN)
return NOSUCHNAME;
for(prefix = (NetPrefixNode *) var->value, cmp = AsnOidLess;
prefix != NULL && (cmp = AsnOidCompare(varBindName, prefix->name)) <
AsnOidEqual;
prefix = prefix->next);
if(cmp != AsnOidEqual)
return NOSUCHNAME;
varbind->value = Asn1Alloc(sizeof(struct ObjectSyntax));
varbind->value->choiceId = OBJECTSYNTAX_SIMPLE;
varbind->value->a.simple = Asn1Alloc(sizeof(struct SimpleSyntax));
varbind->value->a.simple->choiceId = SIMPLESYNTAX_NUMBER;
varbind->value->a.simple->a.number = VALID;
return NOERROR;
}
AsnInt setNetPrefix(VarBind *varbind, Variable *var)
{
int cmp;
NetPrefixNode *prefix, *newPrefix;
AsnOid *varBindName;
diag(COMPONENT,DIAG_DEBUG,"setNetPrefix");
varBindName = &varbind->name;
if(varbind->value->choiceId != OBJECTSYNTAX_SIMPLE ||
varbind->value->a.simple->choiceId != SIMPLESYNTAX_NUMBER ||
(varbind->value->a.simple->a.number != VALID &&
varbind->value->a.simple->a.number != INVALID))
return BADVALUE;
if(AsnOidSize(varBindName) != NETPREFIX_LEN + INDEX_LEN ||
varBindName->octs[NETPREFIX_LEN] != LOCALUNI ||
varBindName->octs[NETPREFIX_LEN + 1] != NETPREFIX_STRINGLEN)
return NOSUCHNAME;
for(prefix = (NetPrefixNode *) var->value, cmp = AsnOidLess;
prefix != NULL && (cmp = AsnOidCompare(varBindName, prefix->name)) <
AsnOidEqual;
prefix = prefix->next);
if(varbind->value->a.simple->a.number == VALID && cmp != AsnOidEqual)
{
newPrefix = alloc_t(NetPrefixNode);
newPrefix->name = alloc_t(AsnOid);
newPrefix->name->octs = alloc(varBindName->octetLen);
AsnOidCopy(newPrefix->name, varBindName);
{
NetPrefixNode *tmp = (NetPrefixNode *) var->value;
Q_INSERT_BEFORE(tmp, newPrefix, prefix);
}
if(atmNetPrefix.octs == NULL)
{
atmNetPrefix.octetLen = varBindName->octetLen - NETPREFIX_LEN - 2;
atmNetPrefix.octs = alloc(atmNetPrefix.octetLen);
memcpy(atmNetPrefix.octs, &varBindName->octs[NETPREFIX_LEN + 2], atmNetPrefix.octetLen);
}
}
else if (varbind->value->a.simple->a.number == INVALID && cmp == AsnOidEqual)
{
{
NetPrefixNode *tmp = (NetPrefixNode *) var->value;
Q_REMOVE(tmp, prefix);
}
}
return NOERROR;
}
AsnInt getnextNetPrefix(VarBind *varbind, Variable *var)
{
NetPrefixNode *prefix;
AsnOid *varBindName;
varBindName = &varbind->name;
for(prefix = (NetPrefixNode *) var->value;
prefix != NULL && AsnOidCompare(prefix->name, varBindName) != AsnOidGreater;
prefix = prefix->next);
if(prefix == NULL)
return NOSUCHNAME;
varbind->name.octs = Asn1Alloc(prefix->name->octetLen);
AsnOidCopy(varBindName, prefix->name);
varbind->value = Asn1Alloc(sizeof(struct ObjectSyntax));
varbind->value->choiceId = OBJECTSYNTAX_SIMPLE;
varbind->value->a.simple = Asn1Alloc(sizeof(struct SimpleSyntax));
varbind->value->a.simple->choiceId = SIMPLESYNTAX_NUMBER;
varbind->value->a.simple->a.number = VALID;
return NOERROR;
}
