Implement NetworkManager

Change-Id: Ifa8169d903ecab1575662cfc0f9a1c950d56144f
Signed-off-by: Ratan Gupta <ratagupt@in.ibm.com>

3 files changed, 133 insertions, 0 deletions

diff --git a/Makefile.am b/Makefile.am
index abc5067..d5bc9b3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -15,6 +15,7 @@ noinst_HEADERS = \
 
 phosphor_network_manager_SOURCES = \
 		ethernet_interface.cpp \
+		network_manager.cpp \
 		network_manager_main.cpp \
 		xyz/openbmc_project/Network/VLAN/Create/server.cpp
 
diff --git a/network_manager.cpp b/network_manager.cpp
new file mode 100644
index 0000000..479e8a4
--- /dev/null
+++ b/network_manager.cpp
@@ -0,0 +1,118 @@
+#include "config.h"
+#include "network_manager.hpp"
+
+#include <phosphor-logging/log.hpp>
+
+#include <algorithm>
+
+#include <arpa/inet.h>
+#include <dirent.h>
+#include <net/if.h>
+
+
+namespace phosphor
+{
+namespace network
+{
+using namespace phosphor::logging;
+
+Manager::Manager(sdbusplus::bus::bus& bus, const char* objPath):
+    details::VLANCreateIface(bus, objPath, true)
+{
+    auto interfaceInfoList = getInterfaceAndaddrs();
+
+    for( const auto& intfInfo : interfaceInfoList )
+    {
+        std::string  objectPath = std::string(OBJ_NETWORK) + "/" + intfInfo.first;
+
+        this->interfaces.emplace(std::make_pair(
+                                 intfInfo.first,
+                                 std::make_unique<
+                                 phosphor::network::EthernetInterface >
+                                 (bus, objectPath.c_str(),
+                                 false)));
+    }
+}
+
+void Manager::vLAN(details::IntfName interfaceName, uint16_t id)
+{
+}
+
+details::IntfAddrMap Manager::getInterfaceAndaddrs() const
+{
+    details::IntfAddrMap intfMap;
+    details::AddrList addrList;
+    struct ifaddrs* ifaddr;
+    // attempt to fill struct with ifaddrs
+    if (getifaddrs(&ifaddr) == -1)
+    {
+        log<level::ERR>("getifaddrs failed:",
+                         entry("ERRNO=%s", strerror(errno)));
+
+        //TODO: openbmc/openbmc#1462 <create the error log>
+
+        return intfMap;
+    }
+
+    details::AddrPtr ifaddrPtr(ifaddr);
+    ifaddr = nullptr;
+
+    std::string intfName;
+
+    for (ifaddrs* ifa = ifaddrPtr.get(); ifa != nullptr; ifa = ifa->ifa_next)
+    {
+        // walk interfaces
+        if (ifa->ifa_addr == nullptr)
+        {
+            continue;
+        }
+
+        // get only INET interfaces not ipv6
+        if (ifa->ifa_addr->sa_family == AF_INET ||
+            ifa->ifa_addr->sa_family == AF_INET6)
+        {
+            // if loopback, or not running ignore
+            if ((ifa->ifa_flags & IFF_LOOPBACK) ||
+                !(ifa->ifa_flags & IFF_RUNNING))
+            {
+                continue;
+            }
+            // if the interface name is  not same as the  previous
+            // iteration then add the addr list into
+            // the map.
+            if (intfName != "" && intfName != std::string(ifa->ifa_name))
+            {
+                intfMap.emplace(intfName, addrList);
+                addrList.clear();
+            }
+            intfName = ifa->ifa_name;
+            details::AddrInfo info;
+            char tmp[INET6_ADDRSTRLEN] = { 0 };
+
+            if (ifa->ifa_addr->sa_family == AF_INET)
+            {
+
+                inet_ntop(ifa->ifa_addr->sa_family,
+                          &(((struct sockaddr_in*)(ifa->ifa_addr))->sin_addr),
+                          tmp,
+                          sizeof(tmp));
+            }
+            else
+            {
+                inet_ntop(ifa->ifa_addr->sa_family,
+                          &(((struct sockaddr_in6*)(ifa->ifa_addr))->sin6_addr),
+                          tmp,
+                          sizeof(tmp));
+
+            }
+
+            info.addrType = ifa->ifa_addr->sa_family;
+            info.ipaddress = tmp;
+            addrList.emplace_back(info);
+        }
+    }
+    intfMap.emplace(intfName, addrList);
+    return intfMap;
+}
+}//namespace network
+}//namespace phosphor
diff --git a/network_manager.hpp b/network_manager.hpp
index 51e9d2c..2e90b23 100644
--- a/network_manager.hpp
+++ b/network_manager.hpp
@@ -4,8 +4,10 @@
 #include "xyz/openbmc_project/Network/VLAN/Create/server.hpp"
 
 #include <sdbusplus/bus.hpp>
+#include <ifaddrs.h>
 
 #include <list>
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -31,6 +33,18 @@ struct AddrInfo {
     std::string ipaddress;
 };
 
+using Addr_t = ifaddrs*;
+
+struct AddrDeleter
+{
+    void operator()(Addr_t ptr) const
+    {
+        freeifaddrs(ptr);
+    }
+};
+
+using AddrPtr = std::unique_ptr<ifaddrs, AddrDeleter>;
+
 using AddrList = std::list<AddrInfo>;
 using IntfAddrMap = std::map<IntfName, AddrList>;