transporthandler:Change for set and get lan config

This patch allows to use self/current channel(0x0E) as input parameter
in set and get lan configuration commands

Tested:
Before:
Command: ipmitool -I lanplus -H <BMC-IP> -U <User> -P <Pwd> raw  0x0c
         0x01 0x0E 0xC7 0x01 0x01 0x31 0x71 0x71 0x71 0x71 071 0x71
         0x71 0x71 0x71 0x71 0x71 0x71 0x71 0x71
Response: Unable to send RAW command (channel=0x0 netfn=0xc lun=0x0
          cmd=0x1 rsp=0xff): Unspecified error

Command: ipmitool -I lanplus -H <BMC-IP> -U <User> -P <Pwd> raw 0x0c
         0x02 0x0E 0x16 0x00 0x00
Response: Unable to send RAW command (channel=0x0 netfn=0xc lun=0x0
          cmd=0x2 rsp=0xff): Unspecified error

After:
Command: ipmitool -I lanplus -H <BMC-IP> -U <User> -P <Pwd> raw  0x0c
         0x01 0x0E 0xC7 0x01 0x01 0x31 0x71 0x71 0x71 0x71 071 0x71 0x71
         0x71 0x71 0x71 0x71 0x71 0x71 0x71
Response:           //success

Command:  ipmitool -I lanplus -H <BMC-IP> -U <User> -P <Pwd> raw 0x0c
          0x02 0x0E 0x16 0x00 0x00
Response: 11 02

Signed-off-by: vijayabharathix shetty <vijayabharathix.shetty@intel.com>
Change-Id: Icdffe4b95ade13a4beb9953d8f1994cbadc64993
diff --git a/transporthandler.cpp b/transporthandler.cpp
index 7b88909..4479489 100644
--- a/transporthandler.cpp
+++ b/transporthandler.cpp
@@ -1338,12 +1338,14 @@
     return true;
 }
 
-RspType<> setLan(uint4_t channelBits, uint4_t, uint8_t parameter,
-                 message::Payload& req)
+RspType<> setLan(Context::ptr ctx, uint4_t channelBits, uint4_t reserved1,
+                 uint8_t parameter, message::Payload& req)
 {
-    auto channel = static_cast<uint8_t>(channelBits);
-    if (!doesDeviceExist(channel))
+    const uint8_t channel = convertCurrentChannelNum(
+        static_cast<uint8_t>(channelBits), ctx->channel);
+    if (reserved1 || !isValidChannel(channel))
     {
+        log<level::ERR>("Set Lan - Invalid field in request");
         req.trailingOk = true;
         return responseInvalidFieldRequest();
     }
@@ -1681,7 +1683,8 @@
     return response(ccParamNotSupported);
 }
 
-RspType<message::Payload> getLan(uint4_t channelBits, uint3_t, bool revOnly,
+RspType<message::Payload> getLan(Context::ptr ctx, uint4_t channelBits,
+                                 uint3_t reserved, bool revOnly,
                                  uint8_t parameter, uint8_t set, uint8_t block)
 {
     message::Payload ret;
@@ -1693,9 +1696,11 @@
         return responseSuccess(std::move(ret));
     }
 
-    auto channel = static_cast<uint8_t>(channelBits);
-    if (!doesDeviceExist(channel))
+    const uint8_t channel = convertCurrentChannelNum(
+        static_cast<uint8_t>(channelBits), ctx->channel);
+    if (reserved || !isValidChannel(channel))
     {
+        log<level::ERR>("Get Lan - Invalid field in request");
         return responseInvalidFieldRequest();
     }