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[2404] Add method to get lease4 by hardware address & subnet ID

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This commit is contained in:
Stephen Morris
2012-11-23 12:23:17 +00:00
parent 59c65b476b
commit 3eab2458f1
3 changed files with 77 additions and 8 deletions
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38
src/lib/dhcpsrv/mysql_lease_mgr.cc
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@@ -66,6 +66,11 @@ TaggedStatement tagged_statements[] = {
"valid_lifetime, expire, subnet_id "
"FROM lease4 "
"WHERE hwaddr = ?"},
{MySqlLeaseMgr::GET_LEASE4_HWADDR_SUBID,
"SELECT address, hwaddr, client_id, "
"valid_lifetime, expire, subnet_id "
"FROM lease4 "
"WHERE hwaddr = ? AND subnet_id = ?"},
{MySqlLeaseMgr::GET_LEASE4_ADDR,
"SELECT address, hwaddr, client_id, "
"valid_lifetime, expire, subnet_id "
@@ -1104,14 +1109,37 @@ MySqlLeaseMgr::getLease4(const HWAddr& hwaddr) const {
Lease4Ptr
MySqlLeaseMgr::getLease4(const HWAddr& /* hwaddr */,
SubnetID /* subnet_id */) const {
isc_throw(NotImplemented, "MySqlLeaseMgr::getLease4(const HWAddr&, SubnetID) "
"not implemented yet");
return (Lease4Ptr());
MySqlLeaseMgr::getLease4(const HWAddr& hwaddr, SubnetID subnet_id) const {
// Set up the WHERE clause value
MYSQL_BIND inbind[2];
memset(inbind, 0, sizeof(inbind));
// As "buffer" is "char*" - even though the data is being read - we need
// to cast away the "const"ness as well as reinterpreting the data as
// a "char*". (We could avoid the "const_cast" by copying the data to a
// local variable, but as the data is only being read, this introduces
// an unnecessary copy).
unsigned long hwaddr_length = hwaddr.size();
uint8_t* data = const_cast<uint8_t*>(&hwaddr[0]);
inbind[0].buffer_type = MYSQL_TYPE_BLOB;
inbind[0].buffer = reinterpret_cast<char*>(data);
inbind[0].buffer_length = hwaddr_length;
inbind[0].length = &hwaddr_length;
inbind[1].buffer_type = MYSQL_TYPE_LONG;
inbind[1].buffer = reinterpret_cast<char*>(&subnet_id);
inbind[1].is_unsigned = my_bool(1);
// Get the data
Lease4Ptr result;
getLease(GET_LEASE4_HWADDR_SUBID, inbind, exchange4_, result);
return (result);
}
Lease4Collection
MySqlLeaseMgr::getLease4(const ClientId& /* clientid */) const {
isc_throw(NotImplemented, "MySqlLeaseMgr::getLease4(const ClientID&) "