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Code Issues Releases Wiki Activity

[295-min-max-lease-time-configuration-options] checkpoint

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This commit is contained in:
Francis Dupont
2019-05-16 01:16:20 +02:00
parent fea5ff0736
commit da42fc316e
8 changed files with 159 additions and 22 deletions
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77
src/lib/dhcpsrv/parsers/base_network_parser.cc
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@@ -15,23 +15,88 @@ using namespace isc::util;
namespace isc {
namespace dhcp {
const Triplet<uint32_t>
BaseNetworkParser::parseLifetime(const ConstElementPtr& scope,
const std::string& name) {
uint32_t value;
bool has_value = false;
uint32_t min_value;
bool has_min = false;
uint32_t max_value;
bool has_max = false;
if (scope->contains(name)) {
value = getInteger(scope, name);
has_value = true;
}
if (scope->contains("default-" + name)) {
if (has_value) {
isc_throw(DhcpConfigError, "have both " << name << " and default-"
<< name << " in " << scope->getPosition());
}
value = getInteger(scope, "default-" + name);
has_value = true;
}
if (scope->contains("min-" + name)) {
min_value = getInteger(scope, "min-" + name);
has_min = true;
}
if (scope->contains("max-" + name)) {
max_value = getInteger(scope, "max-" + name);
has_max = true;
}
if (!has_value && !has_min && !has_max) {
return (Triplet<uint32_t>());
}
if (has_value) {
if (!has_min && !has_max) {
// default only.
min_value = value;
max_value = value;
} else if (!has_min) {
// default and max.
min_value = value;
} else if (!has_max) {
// default and min.
max_value = value;
}
} else if (has_min) {
// min only.
if (!has_max) {
value = min_value;
max_value = min_value;
} else {
// min and max.
isc_throw(DhcpConfigError, "have min-" << name << " and max-"
<< name << " but no default-" << name << " nor "
<< name << " in " << scope->getPosition());
}
} else {
// max only.
min_value = max_value;
value = max_value;
}
// Check that value is between min and max.
if ((value < min_value) || (value > max_value)) {
isc_throw(DhcpConfigError, "the value of default-" << name << " ("
<< value << ") is not between min-" << name << " ("
<< min_value << ") and max-" << name << " ("
<< max_value << ")");
}
return (Triplet<uint32_t>(min_value, value, max_value));
}
void
BaseNetworkParser::parseCommonTimers(const ConstElementPtr& network_data,
NetworkPtr& network) {
Triplet<uint32_t> t1;
if (network_data->contains("renew-timer")) {
network->setT1(getInteger(network_data, "renew-timer"));
}
Triplet<uint32_t> t2;
if (network_data->contains("rebind-timer")) {
network->setT2(getInteger(network_data, "rebind-timer"));
}
Triplet<uint32_t> valid;
if (network_data->contains("valid-lifetime")) {
network->setValid(getInteger(network_data, "valid-lifetime"));
}
network->setValid(parseLifetime(network_data, "valid-lifetime"));
}
void