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Commit 2584b902 authored by Marcin Siodelski's avatar Marcin Siodelski
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[master] Merge branch 'trac5664a'

parents 209b55b9 e1b7ce70
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Showing with 811 additions and 108 deletions
src/bin/dhcp4/dhcp4_srv.cc
View file @ 2584b902
......@@ -369,8 +369,11 @@ Dhcpv4Exchange::setHostIdentifiers() {
Host::IdentifierType type = Host::IDENT_FLEX;
std::vector<uint8_t> id;
// Delete previously set arguments
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Pass incoming packet as argument
callout_handle->setArgument("query4", context_->query_);
......@@ -530,8 +533,11 @@ Dhcpv4Srv::selectSubnet(const Pkt4Ptr& query, bool& drop,
HooksManager::calloutsPresent(Hooks.hook_index_subnet4_select_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(query);
// We're reusing callout_handle from previous calls
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Enable copying options from the packet within hook library.
ScopedEnableOptionsCopy<Pkt4> query4_options_copy(query);
......@@ -648,8 +654,11 @@ Dhcpv4Srv::selectSubnet4o6(const Pkt4Ptr& query, bool& drop,
HooksManager::calloutsPresent(Hooks.hook_index_subnet4_select_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(query);
// We're reusing callout_handle from previous calls
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Set new arguments
callout_handle->setArgument("query4", query);
......@@ -845,8 +854,11 @@ Dhcpv4Srv::processPacket(Pkt4Ptr& query, Pkt4Ptr& rsp, bool allow_packet_park) {
if (HooksManager::calloutsPresent(Hooks.hook_index_buffer4_receive_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(query);
// Delete previously set arguments
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Enable copying options from the packet within hook library.
ScopedEnableOptionsCopy<Pkt4> query4_options_copy(query);
......@@ -957,8 +969,11 @@ Dhcpv4Srv::processPacket(Pkt4Ptr& query, Pkt4Ptr& rsp, bool allow_packet_park) {
if (HooksManager::calloutsPresent(Hooks.hook_index_pkt4_receive_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(query);
// Delete previously set arguments
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Enable copying options from the packet within hook library.
ScopedEnableOptionsCopy<Pkt4> query4_options_copy(query);
......@@ -1041,11 +1056,11 @@ Dhcpv4Srv::processPacket(Pkt4Ptr& query, Pkt4Ptr& rsp, bool allow_packet_park) {
if (ctx && HooksManager::calloutsPresent(Hooks.hook_index_leases4_committed_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(query);
// Delete all previous arguments
callout_handle->deleteAllArguments();
// Clear skip flag if it was set in previous callouts
callout_handle->setStatus(CalloutHandle::NEXT_STEP_CONTINUE);
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
ScopedEnableOptionsCopy<Pkt4> query4_options_copy(query);
......@@ -1124,11 +1139,11 @@ Dhcpv4Srv::processPacketPktSend(hooks::CalloutHandlePtr& callout_handle,
// Execute all callouts registered for pkt4_send
if (HooksManager::calloutsPresent(Hooks.hook_index_pkt4_send_)) {
// Delete all previous arguments
callout_handle->deleteAllArguments();
// Clear skip flag if it was set in previous callouts
callout_handle->setStatus(CalloutHandle::NEXT_STEP_CONTINUE);
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Enable copying options from the query and response packets within
// hook library.
......@@ -1183,8 +1198,11 @@ Dhcpv4Srv::processPacketBufferSend(CalloutHandlePtr& callout_handle,
// Let's execute all callouts registered for buffer4_send
if (HooksManager::calloutsPresent(Hooks.hook_index_buffer4_send_)) {
// Delete previously set arguments
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Enable copying options from the packet within hook library.
ScopedEnableOptionsCopy<Pkt4> resp4_options_copy(rsp);
......@@ -2674,8 +2692,11 @@ Dhcpv4Srv::processRelease(Pkt4Ptr& release, AllocEngine::ClientContext4Ptr& cont
if (HooksManager::calloutsPresent(Hooks.hook_index_lease4_release_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(release);
// Delete all previous arguments
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Enable copying options from the packet within hook library.
ScopedEnableOptionsCopy<Pkt4> query4_options_copy(release);
......@@ -2824,8 +2845,11 @@ Dhcpv4Srv::declineLease(const Lease4Ptr& lease, const Pkt4Ptr& decline,
if (HooksManager::calloutsPresent(Hooks.hook_index_lease4_decline_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(decline);
// Delete previously set arguments
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Enable copying options from the packet within hook library.
ScopedEnableOptionsCopy<Pkt4> query4_options_copy(decline);
......
src/bin/dhcp4/tests/hooks_unittest.cc
View file @ 2584b902
......@@ -207,6 +207,21 @@ public:
return (dis);
}
/// @brief Checks if the state of the callout handle associated with a query
/// was reset after the callout invocation.
///
/// The check includes verification if the status was set to 'continue' and
/// that all arguments were deleted.
///
/// @param query pointer to the query which callout handle is associated
/// with.
void checkCalloutHandleReset(const Pkt4Ptr& query) {
CalloutHandlePtr callout_handle = query->getCalloutHandle();
ASSERT_TRUE(callout_handle);
EXPECT_EQ(CalloutHandle::NEXT_STEP_CONTINUE, callout_handle->getStatus());
EXPECT_TRUE(callout_handle->getArgumentNames().empty());
}
/// Test callback that stores received callout name and pkt4 value
/// @param callout_handle handle passed by the hooks framework
/// @return always 0
......@@ -909,6 +924,9 @@ TEST_F(HooksDhcpv4SrvTest, Buffer4ReceiveSimple) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(dis);
}
// Checks if callouts installed on buffer4_receive is able to change
......@@ -948,6 +966,9 @@ TEST_F(HooksDhcpv4SrvTest, buffer4ReceiveValueChange) {
// ... and check if it is the modified value
ASSERT_FALSE(hwaddr->hwaddr_.empty()); // there must be a MAC address
EXPECT_EQ(0xff, hwaddr->hwaddr_[0]); // check that its first byte was modified
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(discover);
}
// Checks if callouts installed on buffer4_receive is able to set skip flag that
......@@ -976,6 +997,9 @@ TEST_F(HooksDhcpv4SrvTest, buffer4ReceiveSkip) {
// Check that the server dropped the packet and did not produce any response
ASSERT_EQ(0, srv_->fake_sent_.size());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(discover);
}
// Checks if callouts installed on buffer4_receive is able to set drop flag that
......@@ -1002,6 +1026,9 @@ TEST_F(HooksDhcpv4SrvTest, buffer4ReceiveDrop) {
// Check that the server dropped the packet and did not produce any response
ASSERT_EQ(0, srv_->fake_sent_.size());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(discover);
}
// Checks if callouts installed on pkt4_receive are indeed called and the
......@@ -1043,6 +1070,9 @@ TEST_F(HooksDhcpv4SrvTest, pkt4ReceiveSimple) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// Checks if callouts installed on pkt4_received is able to change
......@@ -1080,6 +1110,9 @@ TEST_F(HooksDhcpv4SrvTest, valueChange_pkt4_receive) {
// ... and check if it is the modified value
OptionPtr expected = createOption(DHO_DHCP_CLIENT_IDENTIFIER);
EXPECT_TRUE(clientid->equals(expected));
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// Checks if callouts installed on pkt4_received is able to delete
......@@ -1107,6 +1140,9 @@ TEST_F(HooksDhcpv4SrvTest, pkt4ReceiveDeleteClientId) {
// Check that the server dropped the packet and did not send a response
ASSERT_EQ(0, srv_->fake_sent_.size());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// Checks if callouts installed on pkt4_received is able to set skip flag that
......@@ -1133,6 +1169,9 @@ TEST_F(HooksDhcpv4SrvTest, pkt4ReceiveSkip) {
// check that the server dropped the packet and did not produce any response
ASSERT_EQ(0, srv_->fake_sent_.size());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// Checks if callouts installed on pkt4_received is able to set drop flag that
......@@ -1159,6 +1198,9 @@ TEST_F(HooksDhcpv4SrvTest, pkt4ReceiveDrop) {
// check that the server dropped the packet and did not produce any response
ASSERT_EQ(0, srv_->fake_sent_.size());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
......@@ -1210,6 +1252,9 @@ TEST_F(HooksDhcpv4SrvTest, pkt4SendSimple) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
EXPECT_TRUE(callback_resp_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// Checks if callouts installed on pkt4_send is able to change
......@@ -1247,6 +1292,9 @@ TEST_F(HooksDhcpv4SrvTest, pkt4SendValueChange) {
// ... and check if it is the modified value
OptionPtr expected = createOption(DHO_DHCP_SERVER_IDENTIFIER);
EXPECT_TRUE(clientid->equals(expected));
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// Checks if callouts installed on pkt4_send is able to delete
......@@ -1282,6 +1330,9 @@ TEST_F(HooksDhcpv4SrvTest, pkt4SendDeleteServerId) {
// Make sure that it does not have server-id
EXPECT_FALSE(adv->getOption(DHO_DHCP_SERVER_IDENTIFIER));
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// Checks if callouts installed on pkt4_skip is able to set skip flag that
......@@ -1313,6 +1364,9 @@ TEST_F(HooksDhcpv4SrvTest, skip_pkt4_send) {
// did not do packing on its own)
Pkt4Ptr sent = srv_->fake_sent_.front();
EXPECT_EQ(0, sent->getBuffer().getLength());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// Checks if callouts installed on pkt4_drop is able to set drop flag that
......@@ -1344,6 +1398,9 @@ TEST_F(HooksDhcpv4SrvTest, drop_pkt4_send) {
// did not do packing on its own)
Pkt4Ptr sent = srv_->fake_sent_.front();
EXPECT_EQ(0, sent->getBuffer().getLength());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// Checks if callouts installed on buffer4_send are indeed called and the
......@@ -1385,6 +1442,9 @@ TEST_F(HooksDhcpv4SrvTest, buffer4SendSimple) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_resp_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(discover);
}
// Checks if callouts installed on buffer4_send are indeed called and that
......@@ -1416,6 +1476,9 @@ TEST_F(HooksDhcpv4SrvTest, buffer4Send) {
// The callout is supposed to fill the output buffer with dummyFile content
ASSERT_EQ(sizeof(dummyFile), adv->getBuffer().getLength());
EXPECT_EQ(0, memcmp(adv->getBuffer().getData(), dummyFile, sizeof(dummyFile)));
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(discover);
}
// Checks if callouts installed on buffer4_send can set skip flag and that flag
......@@ -1442,6 +1505,9 @@ TEST_F(HooksDhcpv4SrvTest, buffer4SendSkip) {
// Check that there is no packet sent.
ASSERT_EQ(0, srv_->fake_sent_.size());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(discover);
}
// Checks if callouts installed on buffer4_send can set drop flag and that flag
......@@ -1468,6 +1534,9 @@ TEST_F(HooksDhcpv4SrvTest, buffer4SendDrop) {
// Check that there is no packet sent.
ASSERT_EQ(0, srv_->fake_sent_.size());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(discover);
}
......@@ -1548,6 +1617,9 @@ TEST_F(HooksDhcpv4SrvTest, subnet4SelectSimple) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// This test checks if callout installed on subnet4_select hook point can pick
......@@ -1615,6 +1687,9 @@ TEST_F(HooksDhcpv4SrvTest, subnet4SelectChange) {
// in dynamic pool)
EXPECT_TRUE((*subnets)[1]->inRange(addr));
EXPECT_TRUE((*subnets)[1]->inPool(Lease::TYPE_V4, addr));
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// This test verifies that the leases4_committed hook point is not triggered
......@@ -1636,6 +1711,9 @@ TEST_F(HooksDhcpv4SrvTest, leases4CommittedDiscover) {
// Make sure that the callout wasn't called.
EXPECT_TRUE(callback_name_.empty());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
}
// This test verifies that the leases4_committed hook point is not triggered
......@@ -1657,6 +1735,9 @@ TEST_F(HooksDhcpv4SrvTest, leases4CommittedInform) {
// Make sure that the callout wasn't called.
EXPECT_TRUE(callback_name_.empty());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
}
// This test verifies that incoming (positive) REQUEST/Renewing can be handled
......@@ -1755,6 +1836,9 @@ TEST_F(HooksDhcpv4SrvTest, lease4RenewSimple) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(req);
}
// This test verifies that a callout installed on lease4_renew can trigger
......@@ -1825,6 +1909,9 @@ TEST_F(HooksDhcpv4SrvTest, lease4RenewSkip) {
EXPECT_EQ(temp_timestamp, l->cltt_);
EXPECT_TRUE(LeaseMgrFactory::instance().deleteLease(addr));
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(req);
}
// This test verifies that the callout installed on the leases4_committed hook
......@@ -1867,6 +1954,9 @@ TEST_F(HooksDhcpv4SrvTest, leases4CommittedRequest) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
resetCalloutBuffers();
// Renew the lease and make sure that the callout has been executed.
......@@ -1889,6 +1979,9 @@ TEST_F(HooksDhcpv4SrvTest, leases4CommittedRequest) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
resetCalloutBuffers();
// Let's try to renew again but force the client to request a different
......@@ -1914,6 +2007,9 @@ TEST_F(HooksDhcpv4SrvTest, leases4CommittedRequest) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
resetCalloutBuffers();
// Now request an address that can't be allocated. The client should receive
......@@ -1930,6 +2026,9 @@ TEST_F(HooksDhcpv4SrvTest, leases4CommittedRequest) {
EXPECT_FALSE(callback_lease4_);
EXPECT_FALSE(callback_deleted_lease4_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
}
// This test verifies that it is possible to park a packet as a result of
......@@ -1975,6 +2074,9 @@ TEST_F(HooksDhcpv4SrvTest, leases4CommittedParkRequests) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client1.getContext().query_);
// Reset all indicators because we'll be now creating a second client.
resetCalloutBuffers();
......@@ -2008,6 +2110,9 @@ TEST_F(HooksDhcpv4SrvTest, leases4CommittedParkRequests) {
rsp = client2.getContext().response_;
EXPECT_EQ(DHCPACK, rsp->getType());
EXPECT_EQ("192.0.2.101", rsp->getYiaddr().toText());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client2.getContext().query_);
}
// This test verifies that valid RELEASE triggers lease4_release callouts
......@@ -2097,6 +2202,9 @@ TEST_F(HooksDhcpv4SrvTest, lease4ReleaseSimple) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(rel);
}
// This test verifies that skip flag returned by a callout installed on the
......@@ -2162,6 +2270,9 @@ TEST_F(HooksDhcpv4SrvTest, lease4ReleaseSkip) {
// Try by client-id, should be successful as well.
leases = LeaseMgrFactory::instance().getLease4(*client_id_);
EXPECT_EQ(leases.size(), 1);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(rel);
}
// This test verifies that the leases4_committed callout is executed
......@@ -2206,6 +2317,9 @@ TEST_F(HooksDhcpv4SrvTest, leases4CommittedRelease) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
}
// This test verifies that drop flag returned by a callout installed on the
......@@ -2271,6 +2385,9 @@ TEST_F(HooksDhcpv4SrvTest, lease4ReleaseDrop) {
// Try by client-id, should be successful as well.
leases = LeaseMgrFactory::instance().getLease4(*client_id_);
EXPECT_EQ(leases.size(), 1);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(rel);
}
// Checks that decline4 hooks (lease4_decline) are triggered properly.
......@@ -2320,6 +2437,9 @@ TEST_F(HooksDhcpv4SrvTest, HooksDecline) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
}
// Checks that decline4 hook is able to skip the packet.
......@@ -2368,6 +2488,9 @@ TEST_F(HooksDhcpv4SrvTest, HooksDeclineSkip) {
// lease returned and lease from the lease manager) all match.
EXPECT_EQ(addr, from_mgr->addr_);
EXPECT_EQ(addr, callback_lease4_->addr_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
}
// Checks that decline4 hook is able to drop the packet.
......@@ -2416,6 +2539,9 @@ TEST_F(HooksDhcpv4SrvTest, HooksDeclineDrop) {
// lease returned and lease from the lease manager) all match.
EXPECT_EQ(addr, from_mgr->addr_);
EXPECT_EQ(addr, callback_lease4_->addr_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
}
// This test verifies that the leases4_committed callout is executed
......@@ -2461,6 +2587,9 @@ TEST_F(HooksDhcpv4SrvTest, leases4CommittedDecline) {
// Pkt passed to a callout must be configured to copy retrieved options.
EXPECT_TRUE(callback_qry_options_copy_);
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(client.getContext().query_);
}
// Checks if callout installed on host4_identifier can generate an
......@@ -2529,6 +2658,9 @@ TEST_F(HooksDhcpv4SrvTest, host4_identifier) {
// Make sure the address offered is the one that was reserved.
EXPECT_EQ("192.0.2.201", adv->getYiaddr().toText());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
// Checks if callout installed on host4_identifier can generate identifier of
......@@ -2597,6 +2729,9 @@ TEST_F(HooksDhcpv4SrvTest, host4_identifier_hwaddr) {
// Make sure the address offered is the one that was reserved.
EXPECT_EQ("192.0.2.201", adv->getYiaddr().toText());
// Check if the callout handle state was reset after the callout.
checkCalloutHandleReset(sol);
}
......
src/bin/dhcp6/dhcp6_srv.cc
View file @ 2584b902
......@@ -346,8 +346,11 @@ Dhcpv6Srv::initContext(const Pkt6Ptr& pkt,
Host::IdentifierType type = Host::IDENT_FLEX;
std::vector<uint8_t> id;
// Delete previously set arguments
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Pass incoming packet as argument
callout_handle->setArgument("query6", pkt);
......@@ -520,12 +523,15 @@ Dhcpv6Srv::processPacket(Pkt6Ptr& query, Pkt6Ptr& rsp) {
if (HooksManager::calloutsPresent(Hooks.hook_index_buffer6_receive_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(query);
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Enable copying options from the packet within hook library.
ScopedEnableOptionsCopy<Pkt6> query6_options_copy(query);
// Delete previously set arguments
callout_handle->deleteAllArguments();
// Pass incoming packet as argument
callout_handle->setArgument("query6", query);
......@@ -637,8 +643,11 @@ Dhcpv6Srv::processPacket(Pkt6Ptr& query, Pkt6Ptr& rsp) {
if (HooksManager::calloutsPresent(Hooks.hook_index_pkt6_receive_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(query);
// Delete previously set arguments
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Enable copying options from the packet within hook library.
ScopedEnableOptionsCopy<Pkt6> query6_options_copy(query);
......@@ -784,11 +793,11 @@ Dhcpv6Srv::processPacket(Pkt6Ptr& query, Pkt6Ptr& rsp) {
HooksManager::calloutsPresent(Hooks.hook_index_leases6_committed_)) {
CalloutHandlePtr callout_handle = getCalloutHandle(query);
// Delete all previous arguments
callout_handle->deleteAllArguments();
// Clear skip flag if it was set in previous callouts
callout_handle->setStatus(CalloutHandle::NEXT_STEP_CONTINUE);
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
ScopedEnableOptionsCopy<Pkt6> query6_options_copy(query);
......@@ -888,12 +897,15 @@ Dhcpv6Srv::processPacketPktSend(hooks::CalloutHandlePtr& callout_handle,
// Execute all callouts registered for packet6_send
if (HooksManager::calloutsPresent(Hooks.hook_index_pkt6_send_)) {
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.
ScopedCalloutHandleState callout_handle_state(callout_handle);
// Enable copying options from the packets within hook library.
ScopedEnableOptionsCopy<Pkt6> query_resp_options_copy(query, rsp);
// Delete all previous arguments
callout_handle->deleteAllArguments();
// Pass incoming packet as argument
callout_handle->setArgument("query6", query);
......@@ -948,8 +960,11 @@ Dhcpv6Srv::processPacketBufferSend(CalloutHandlePtr& callout_handle,
// Let's execute all callouts registered for buffer6_send
if (HooksManager::calloutsPresent(Hooks.hook_index_buffer6_send_)) {
// Delete previously set arguments
callout_handle->deleteAllArguments();
// Use the RAII wrapper to make sure that the callout handle state is
// reset when this object goes out of scope. All hook points must do
// it to prevent possible circular dependency between the callout
// handle and its arguments.