[[edk2-staging/HttpProxy] 2/3] MdeModulePkg/Library: Add support for multi-URI device path

["Saloni Kasbekar" <saloni.kasbekar@intel.com>]

Process device path with proxy server and endpoint server included.
Update comment for sample HTTP device path.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Saloni Kasbekar <saloni.kasbekar@intel.com>
---
 .../Library/UefiBootManagerLib/BmBoot.c       | 28 +++++++++++++++++++
 .../UefiBootManagerLib/BmBootDescription.c    |  4 +--
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c b/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
index 962892d38f..fdef1ba292 100644
--- a/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
+++ b/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
@@ -1513,6 +1513,9 @@ BmExpandLoadFiles (
   UINTN                     HandleCount;
   UINTN                     Index;
   EFI_DEVICE_PATH_PROTOCOL  *Node;
+  URI_DEVICE_PATH           *NullUriPath;
+
+  NullUriPath = NULL;
 
   //
   // Get file buffer from load file instance.
@@ -1545,11 +1548,36 @@ BmExpandLoadFiles (
 
     for (Index = 0; Index < HandleCount; Index++) {
       if (BmMatchHttpBootDevicePath (DevicePathFromHandle (Handles[Index]), FilePath)) {
+        //
+        // Matches HTTP Boot Device Path described as
+        //   ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv4(...)[/Dns(...)]/Uri(...)
+        //   ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv6(...)[/Dns(...)]/Uri(...)
+        //
+        Handle = Handles[Index];
+        goto Done;
+      }
+    }
+
+    NullUriPath = (URI_DEVICE_PATH *)CreateDeviceNode (
+                                       MESSAGING_DEVICE_PATH,
+                                       MSG_URI_DP,
+                                       (UINT16)(sizeof (URI_DEVICE_PATH))
+                                       );
+    for (Index = 0; Index < HandleCount; Index++) {
+      if (BmMatchHttpBootDevicePath (AppendDevicePathNode (DevicePathFromHandle (Handles[Index]), (EFI_DEVICE_PATH_PROTOCOL *)NullUriPath), FilePath)) {
+        //
+        // Matches HTTP Boot Device Path described as
+        //   ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv4(...)[/Dns(...)]/Uri(...)/Uri(...)
+        //   ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv6(...)[/Dns(...)]/Uri(...)/Uri(...)
+        //
         Handle = Handles[Index];
         break;
       }
     }
 
+    FreePool (NullUriPath);
+
+Done:
     if (Handles != NULL) {
       FreePool (Handles);
     }
diff --git a/MdeModulePkg/Library/UefiBootManagerLib/BmBootDescription.c b/MdeModulePkg/Library/UefiBootManagerLib/BmBootDescription.c
index fac33b9ee9..19b7cd1457 100644
--- a/MdeModulePkg/Library/UefiBootManagerLib/BmBootDescription.c
+++ b/MdeModulePkg/Library/UefiBootManagerLib/BmBootDescription.c
@@ -412,8 +412,8 @@ BmGetNetworkDescription (
   //   ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv6(...)
   //
   // The HTTP device path is like:
-  //   ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv4(...)[/Dns(...)]/Uri(...)
-  //   ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv6(...)[/Dns(...)]/Uri(...)
+  //   ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv4(...)[/Dns(...)]/Uri(...)[/Uri(...)]
+  //   ....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv6(...)[/Dns(...)]/Uri(...)[/Uri(...)]
   //
   while (!IsDevicePathEnd (DevicePath) &&
          ((DevicePathType (DevicePath) != MESSAGING_DEVICE_PATH) ||
-- 
2.36.1.windows.1