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[5605a] Added a sanity_only flag to selectSubnet*

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This commit is contained in:
Francis Dupont
2018-05-02 22:00:34 +02:00
parent 2e182eba86
commit aeac538382
2 changed files with 18 additions and 9 deletions
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19
src/bin/dhcp4/dhcp4_srv.cc
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@@ -490,11 +490,12 @@ Dhcpv4Srv::shutdown() {
}
isc::dhcp::Subnet4Ptr
Dhcpv4Srv::selectSubnet(const Pkt4Ptr& query, bool& drop) const {
Dhcpv4Srv::selectSubnet(const Pkt4Ptr& query, bool& drop,
bool sanity_only) const {
// DHCPv4-over-DHCPv6 is a special (and complex) case
if (query->isDhcp4o6()) {
return (selectSubnet4o6(query, drop));
return (selectSubnet4o6(query, drop, sanity_only));
}
Subnet4Ptr subnet;
@@ -546,7 +547,8 @@ Dhcpv4Srv::selectSubnet(const Pkt4Ptr& query, bool& drop) const {
subnet = cfgmgr.getCurrentCfg()->getCfgSubnets4()->selectSubnet(selector);
// Let's execute all callouts registered for subnet4_select
if (HooksManager::calloutsPresent(Hooks.hook_index_subnet4_select_)) {
if (!sanity_only &&
HooksManager::calloutsPresent(Hooks.hook_index_subnet4_select_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(query);
// We're reusing callout_handle from previous calls
@@ -611,7 +613,8 @@ Dhcpv4Srv::selectSubnet(const Pkt4Ptr& query, bool& drop) const {
}
isc::dhcp::Subnet4Ptr
Dhcpv4Srv::selectSubnet4o6(const Pkt4Ptr& query, bool& drop) const {
Dhcpv4Srv::selectSubnet4o6(const Pkt4Ptr& query, bool& drop,
bool sanity_only) const {
Subnet4Ptr subnet;
@@ -661,7 +664,8 @@ Dhcpv4Srv::selectSubnet4o6(const Pkt4Ptr& query, bool& drop) const {
subnet = cfgmgr.getCurrentCfg()->getCfgSubnets4()->selectSubnet4o6(selector);
// Let's execute all callouts registered for subnet4_select
if (HooksManager::calloutsPresent(Hooks.hook_index_subnet4_select_)) {
if (!sanity_only &&
HooksManager::calloutsPresent(Hooks.hook_index_subnet4_select_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(query);
// We're reusing callout_handle from previous calls
@@ -2996,9 +3000,10 @@ Dhcpv4Srv::acceptDirectRequest(const Pkt4Ptr& pkt) const {
return (false);
}
bool drop = false;
bool result = (!pkt->getLocalAddr().isV4Bcast() || selectSubnet(pkt, drop));
bool result = (!pkt->getLocalAddr().isV4Bcast() ||
selectSubnet(pkt, drop, true));
if (drop) {
// The packet must be dropped.
// The packet must be dropped but as sanity_only is true it is dead code.
return (false);
}
return (result);