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B #2486: Do not use in-memory VLAN ID maps to work in HA

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This commit is contained in:
Ruben S. Montero 2018-10-08 18:10:10 +02:00
parent 7b21aeb2de
commit 3e1661ea4b
2 changed files with 50 additions and 31 deletions
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15
include/VirtualNetworkPool.h
View File

@ -277,11 +277,6 @@ private:
*/
const VectorAttribute vlan_conf;
/**
* Bitmap with vlan_id in use for the 802.1Q driver
*/
BitMap<4096> vlan_id_bitmap;
/**
* ID for the VLAN_BITMAP, to store it in the DB
*/
@ -324,6 +319,16 @@ private:
*/
int set_vlan_id(VirtualNetwork * vn);
/**
* Helper functions to compute the next vlan_id for 802.1Q and VXLAN.
* @param vnid network id
* @param vlan_var, attribute to store the vlan_id
* @param auto_var, attribute to flag this vlan_id as auto generated
*/
int set_8021Q_id(int vnid, string& vlan_var, bool& auto_var);
int set_vxlan_id(int vnid, string& vlan_var, bool& auto_var);
/**
* Free a previously allocated VLAN ID if needed
* @param vn pointer to the network

66
src/vnm/VirtualNetworkPool.cc
View File

@ -49,7 +49,6 @@ VirtualNetworkPool::VirtualNetworkPool(
const VectorAttribute * _vlan_conf,
const VectorAttribute * _vxlan_conf):
PoolSQL(db, VirtualNetwork::table), vlan_conf(_vlan_conf),
vlan_id_bitmap(vlan_conf, VLAN_BITMAP_ID, vlan_table),
vxlan_conf(_vxlan_conf)
{
istringstream iss;
@ -59,6 +58,8 @@ VirtualNetworkPool::VirtualNetworkPool(
vector<const SingleAttribute *>::const_iterator it;
BitMap<4096> vlan_id_bitmap(vlan_conf, VLAN_BITMAP_ID, vlan_table);
string mac = prefix;
_mac_prefix = 0;
@ -353,8 +354,7 @@ void VirtualNetworkPool::authorize_nic(
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
static int set_8021Q_id(int vnid, string& vlan_var, bool& auto_var,
BitMap<4096>& bitmap)
int VirtualNetworkPool::set_8021Q_id(int vnid, string& vlan_var, bool& auto_var)
{
if ( !vlan_var.empty() || !auto_var )
{
@ -364,6 +364,13 @@ static int set_8021Q_id(int vnid, string& vlan_var, bool& auto_var,
unsigned int vlan_id;
ostringstream oss;
BitMap<4096> bitmap(vlan_conf, VLAN_BITMAP_ID, vlan_table);
if ( bitmap.select(VLAN_BITMAP_ID, db) != 0 )
{
return -1;
}
unsigned int start_vlan = bitmap.get_start_bit();
unsigned int hint_vlan = start_vlan + (vnid % (4095 - start_vlan));
@ -372,6 +379,8 @@ static int set_8021Q_id(int vnid, string& vlan_var, bool& auto_var,
return -1;
}
bitmap.update(db);
oss << vlan_id;
vlan_var = oss.str();
@ -380,8 +389,7 @@ static int set_8021Q_id(int vnid, string& vlan_var, bool& auto_var,
return vlan_id;
}
static int set_vxlan_id(int vnid, string& vlan_var, bool& auto_var,
unsigned int start_vlan)
int VirtualNetworkPool::set_vxlan_id(int vnid, string& vlan_var, bool& auto_var)
{
if ( !vlan_var.empty() || !auto_var )
{
@ -389,6 +397,14 @@ static int set_vxlan_id(int vnid, string& vlan_var, bool& auto_var,
}
ostringstream oss;
unsigned int start_vlan;
if (vxlan_conf.vector_value("START", start_vlan) != 0)
{
start_vlan = 2; //default in oned.conf
}
unsigned int vlan_id = start_vlan + vnid;
oss << vlan_id;
@ -403,7 +419,6 @@ static int set_vxlan_id(int vnid, string& vlan_var, bool& auto_var,
int VirtualNetworkPool::set_vlan_id(VirtualNetwork * vn)
{
unsigned int start_vlan;
int rc, rcx;
if ( vn->vn_mad.empty() )
@ -411,28 +426,18 @@ int VirtualNetworkPool::set_vlan_id(VirtualNetwork * vn)
return 0;
}
if (vxlan_conf.vector_value("START", start_vlan) != 0)
{
start_vlan = 2; //default in oned.conf
}
switch (VirtualNetwork::str_to_driver(vn->vn_mad))
{
case VirtualNetwork::OVSWITCH_VXLAN:
rc = set_8021Q_id(vn->get_oid(), vn->vlan_id, vn->vlan_id_automatic,
vlan_id_bitmap);
rc = set_8021Q_id(vn->get_oid(), vn->vlan_id, vn->vlan_id_automatic);
if ( rc == -1 )
{
return -1;
}
else if ( rc != 0 )
{
vlan_id_bitmap.update(db);
}
rcx = set_vxlan_id(vn->get_oid(), vn->outer_vlan_id,
vn->outer_vlan_id_automatic, start_vlan);
vn->outer_vlan_id_automatic);
if ( rc != 0 || rcx != 0 )
{
@ -441,8 +446,7 @@ int VirtualNetworkPool::set_vlan_id(VirtualNetwork * vn)
break;
case VirtualNetwork::VXLAN:
rcx = set_vxlan_id(vn->get_oid(), vn->vlan_id, vn->vlan_id_automatic,
start_vlan);
rcx = set_vxlan_id(vn->get_oid(), vn->vlan_id, vn->vlan_id_automatic);
if ( rcx != 0 )
{
@ -453,8 +457,7 @@ int VirtualNetworkPool::set_vlan_id(VirtualNetwork * vn)
case VirtualNetwork::VLAN:
case VirtualNetwork::VCENTER:
case VirtualNetwork::OVSWITCH:
rc = set_8021Q_id(vn->get_oid(), vn->vlan_id, vn->vlan_id_automatic,
vlan_id_bitmap);
rc = set_8021Q_id(vn->get_oid(), vn->vlan_id, vn->vlan_id_automatic);
if ( rc == -1 )
{
@ -462,7 +465,6 @@ int VirtualNetworkPool::set_vlan_id(VirtualNetwork * vn)
}
else if ( rc != 0 )
{
vlan_id_bitmap.update(db);
update(vn);
}
break;
@ -505,17 +507,29 @@ void VirtualNetworkPool::release_vlan_id(VirtualNetwork *vn)
is.str(vn->vlan_id);
is >> vlan_id;
BitMap<4096> bitmap(vlan_conf, VLAN_BITMAP_ID, vlan_table);
switch (VirtualNetwork::str_to_driver(vn->vn_mad))
{
case VirtualNetwork::VLAN:
case VirtualNetwork::VCENTER:
case VirtualNetwork::OVSWITCH:
case VirtualNetwork::OVSWITCH_VXLAN:
vlan_id_bitmap.reset(vlan_id);
vlan_id_bitmap.update(db);
if ( bitmap.select(VLAN_BITMAP_ID, db) != 0 )
{
return;
}
bitmap.reset(vlan_id);
bitmap.update(db);
break;
default:
case VirtualNetwork::NONE:
case VirtualNetwork::DUMMY:
case VirtualNetwork::EBTABLES:
case VirtualNetwork::FW:
case VirtualNetwork::VXLAN:
case VirtualNetwork::BRIDGE:
break;
}
}