NetworkPkg: Add RAM disk boot support to HTTP Boot driver.

This patch updates the HTTP Boot driver to support the download and boot
a RAM disk image from HTTP server.
The HTTP RAM disk boot is described in section 23.7 "HTTP Boot" in
UEFI 2.6. HTTP server could provide either an UEFI image or a RAM disk image
for the HTTP boot client to use. The RAM disk image must contain a UEFI
compliant file system in it.
HTTP boot driver will identify the image type either by the "Content-Type"
entity header filed or by the file name extension as below:
  "application/efi" or *.efi -> EFI Image
  *.iso                      -> CD/DVD Image
  *.img                      -> Virtual Disk Image

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: El-Haj-Mahmoud Samer <samer.el-haj-mahmoud@hpe.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/NetworkPkg/HttpBootDxe/HttpBootDxe.h b/NetworkPkg/HttpBootDxe/HttpBootDxe.h
index b3e2576e1e..76b794321e 100644
--- a/NetworkPkg/HttpBootDxe/HttpBootDxe.h
+++ b/NetworkPkg/HttpBootDxe/HttpBootDxe.h
@@ -55,6 +55,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Protocol/Http.h>

 #include <Protocol/Ip4Config2.h>

 #include <Protocol/Ip6Config.h>

+#include <Protocol/RamDisk.h>

 //

 // Produced Protocols

 //

@@ -71,6 +72,12 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define HTTP_BOOT_DXE_VERSION  0xa

 

 //

+// Provisional Standard Media Types defined in 

+// http://www.iana.org/assignments/provisional-standard-media-types/provisional-standard-media-types.xhtml

+//

+#define HTTP_CONTENT_TYPE_APP_EFI           "application/efi"

+

+//

 // Protocol instances

 //

 extern EFI_DRIVER_BINDING_PROTOCOL  gHttpBootDxeDriverBinding;

@@ -83,6 +90,13 @@ extern EFI_COMPONENT_NAME_PROTOCOL  gHttpBootDxeComponentName;
 typedef struct _HTTP_BOOT_PRIVATE_DATA      HTTP_BOOT_PRIVATE_DATA;

 typedef struct _HTTP_BOOT_VIRTUAL_NIC       HTTP_BOOT_VIRTUAL_NIC;

 

+typedef enum  {

+  ImageTypeEfi,

+  ImageTypeVirtualCd,

+  ImageTypeVirtualDisk,

+  ImageTypeMax

+} HTTP_BOOT_IMAGE_TYPE;

+

 //

 // Include files with internal function prototypes

 //

@@ -166,6 +180,11 @@ struct _HTTP_BOOT_PRIVATE_DATA {
   EFI_IP_ADDRESS                            GatewayIp;

   EFI_IP_ADDRESS                            ServerIp;

   UINT16                                    Port;

+

+  //

+  // The URI string attempt to download through HTTP, may point to

+  // the memory in cached DHCP offer, or to the memory in FilePathUri.

+  //

   CHAR8                                     *BootFileUri;

   VOID                                      *BootFileUriParser;

   UINTN                                     BootFileSize;