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sandesh_ksync.cc
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sandesh_ksync.cc
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/*
* Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
*/
#include <boost/asio.hpp>
#include <db/db_entry.h>
#include <db/db_table.h>
#include <db/db_table_partition.h>
#include <net/address_util.h>
#include <vrouter/ksync/sandesh_ksync.h>
#include <vrouter/ksync/flowtable_ksync.h>
#include <vrouter/ksync/interface_ksync.h>
#include <pkt/flow_table.h>
#include <oper/mirror_table.h>
#include <vrouter/ksync/ksync_init.h>
void vr_interface_req::Process(SandeshContext *context) {
AgentSandeshContext *ioc = static_cast<AgentSandeshContext *>(context);
ioc->IfMsgHandler(this);
}
void vr_drop_stats_req::Process(SandeshContext *context) {
AgentSandeshContext *ioc = static_cast<AgentSandeshContext *>(context);
ioc->DropStatsMsgHandler(this);
}
void vr_vrf_stats_req::Process(SandeshContext *context) {
AgentSandeshContext *ioc = static_cast<AgentSandeshContext *>(context);
ioc->VrfStatsMsgHandler(this);
}
void vrouter_ops::Process(SandeshContext *context) {
AgentSandeshContext *ioc = static_cast<AgentSandeshContext *>(context);
ioc->VrouterOpsMsgHandler(this);
}
void vr_mem_stats_req::Process(SandeshContext *context) {
}
int KSyncSandeshContext::VrResponseMsgHandler(vr_response *r) {
response_code_ = r->get_resp_code();
if (-response_code_ == EEXIST) {
return 0;
}
if (response_code_ < 0) {
LOG(ERROR, "VrResponseMsg Error: " << strerror(-response_code_));
return -response_code_;
}
return 0;
}
void KSyncSandeshContext::FlowMsgHandler(vr_flow_req *r) {
assert(r->get_fr_op() == flow_op::FLOW_TABLE_GET ||
r->get_fr_op() == flow_op::FLOW_SET);
if (r->get_fr_op() == flow_op::FLOW_TABLE_GET) {
flow_ksync_->major_devid_ = r->get_fr_ftable_dev();
flow_ksync_->flow_table_size_ = r->get_fr_ftable_size();
flow_ksync_->flow_table_path_ = r->get_fr_file_path();
LOG(DEBUG, "Flow table size : " << r->get_fr_ftable_size());
} else if (r->get_fr_op() == flow_op::FLOW_SET) {
const KSyncIoContext *ioc = ksync_io_ctx();
int family = (r->get_fr_family() == AF_INET)? Address::INET :
Address::INET6;
IpAddress sip, dip;
VectorToIp(r->get_fr_flow_ip(), family, &sip, &dip);
FlowKey key(r->get_fr_flow_nh_id(), sip, dip,
r->get_fr_flow_proto(),
ntohs(r->get_fr_flow_sport()),
ntohs(r->get_fr_flow_dport()));
FlowEntry *entry = flow_ksync_->ksync()->agent()->pkt()->flow_table()->
Find(key);
if (GetErrno() == EBADF) {
string op;
if (r->get_fr_flags() != 0) {
op = "Add/Update";
} else {
op = "Delete";
}
LOG(ERROR, "Error Flow entry op = " << op
<< " nh = " << (int) key.nh
<< " src = " << sip.to_string() << ":" << key.src_port
<< " dst = " << dip.to_string() << ":" << key.dst_port
<< " proto = " << (int)key.protocol
<< " flow_handle = " << (int) r->get_fr_index());
if (entry && (int)entry->flow_handle() == r->get_fr_index()) {
entry->MakeShortFlow(FlowEntry::SHORT_FAILED_VROUTER_INSTALL);
}
return;
}
if (GetErrno() == ENOSPC) {
if (entry) {
entry->MakeShortFlow(FlowEntry::SHORT_FAILED_VROUTER_INSTALL);
}
return;
}
if (entry) {
if (ioc->event() == KSyncEntry::DEL_ACK) {
// Skip delete operation.
return;
}
if (entry->flow_handle() != FlowEntry::kInvalidFlowHandle) {
if ((int)entry->flow_handle() != r->get_fr_index()) {
LOG(DEBUG, "Flow index changed from <" <<
entry->flow_handle() << "> to <" <<
r->get_fr_index() << ">");
}
}
entry->set_flow_handle(r->get_fr_index(),
flow_ksync_->ksync()->agent()->pkt()->flow_table());
//Tie forward flow and reverse flow
if (entry->is_flags_set(FlowEntry::NatFlow) ||
entry->is_flags_set(FlowEntry::EcmpFlow)) {
FlowEntry *rev_flow = entry->reverse_flow_entry();
if (rev_flow) {
rev_flow->UpdateKSync(
flow_ksync_->ksync()->agent()->pkt()->flow_table());
}
}
}
} else {
assert(!("Invalid Flow operation"));
}
return;
}
void KSyncSandeshContext::IfMsgHandler(vr_interface_req *r) {
flow_ksync_->ksync()->interface_scanner()->KernelInterfaceData(r);
context_marker_ = r->get_vifr_idx();
}
void KSyncSandeshContext::VrouterOpsMsgHandler(vrouter_ops *r) {
Agent *agent = flow_ksync_->ksync()->agent();
agent->set_vrouter_max_labels(r->get_vo_mpls_labels());
agent->set_vrouter_max_nexthops(r->get_vo_nexthops());
agent->set_vrouter_max_bridge_entries(r->get_vo_bridge_entries());
agent->set_vrouter_max_oflow_bridge_entries(
r->get_vo_oflow_bridge_entries());
agent->set_vrouter_max_interfaces(r->get_vo_interfaces());
agent->set_vrouter_max_mirror_entries(r->get_vo_mirror_entries());
agent->set_vrouter_max_vrfs(r->get_vo_vrfs());
agent->set_vrouter_build_info(r->get_vo_build_info());
return;
}