MdeModulePkg:Fix a bug that HttpLib can not parse Ipv6 address correctly.

When parsing the authority component of the input URL, it can not distinguish 
the ":" is the flag that indicates the port or the separator between 
the ipv6 address.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Zhang Lubo <lubo.zhang@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Gary Ching-Pang Lin <glin@suse.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18744 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 29 insertions, 4 deletions

diff --git a/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c b/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c
index aeb52d0088..500b3c72b3 100644
--- a/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c
+++ b/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c
@@ -70,6 +70,7 @@ typedef enum {
   UrlParserUserInfo,

   UrlParserHostStart,     // "@"

   UrlParserHost,

+  UrlParserHostIpv6,      // "["(Ipv6 address) "]"

   UrlParserPortStart,     // ":"

   UrlParserPort,

   UrlParserStateMax

@@ -138,13 +139,16 @@ UriPercentDecode (
 

   @param[in]       Char           Next character.

   @param[in]       State          Current value of the parser state machine.

+  @param[in]       IsRightBracket TRUE if there is an sign ']' in the authority component and 

+                                  indicates the next part is ':' before Port.                                

 

   @return          Updated state value.

 **/

 HTTP_URL_PARSE_STATE

 NetHttpParseAuthorityChar (

   IN  CHAR8                  Char,

-  IN  HTTP_URL_PARSE_STATE   State

+  IN  HTTP_URL_PARSE_STATE   State,

+  IN  BOOLEAN                *IsRightBracket

   )

 {

 

@@ -169,12 +173,27 @@ NetHttpParseAuthorityChar (
     break;

 

   case UrlParserHost:

-  case UrlParserHostStart:

+  case UrlParserHostStart:  

+    if (Char == '[') {

+      return UrlParserHostIpv6;

+    }

+    

     if (Char == ':') {

       return UrlParserPortStart;

     }

+    

     return UrlParserHost;

-

+    

+  case UrlParserHostIpv6:  

+    if (Char == ']') {

+      *IsRightBracket = TRUE;

+    }

+    

+    if (Char == ':' && *IsRightBracket == TRUE) {

+      return UrlParserPortStart;

+    }

+    return UrlParserHostIpv6;

+    

   case UrlParserPort:

   case UrlParserPortStart:

     return UrlParserPort;

@@ -210,6 +229,7 @@ NetHttpParseAuthority (
   HTTP_URL_PARSE_STATE  State;

   UINT32                Field;

   UINT32                OldField;

+  BOOLEAN               IsrightBracket;

   

   ASSERT ((UrlParser->FieldBitMap & BIT (HTTP_URI_FIELD_AUTHORITY)) != 0);

 

@@ -222,12 +242,13 @@ NetHttpParseAuthority (
     State = UrlParserHost;

   }

 

+  IsrightBracket = FALSE;

   Field = HTTP_URI_FIELD_MAX;

   OldField = Field;

   Authority = Url + UrlParser->FieldData[HTTP_URI_FIELD_AUTHORITY].Offset;

   Length = UrlParser->FieldData[HTTP_URI_FIELD_AUTHORITY].Length;

   for (Char = Authority; Char < Authority + Length; Char++) {

-    State = NetHttpParseAuthorityChar (*Char, State);

+    State = NetHttpParseAuthorityChar (*Char, State, &IsrightBracket);

     switch (State) {

     case UrlParserStateMax:

       return EFI_INVALID_PARAMETER;

@@ -243,6 +264,10 @@ NetHttpParseAuthority (
     case UrlParserHost:

       Field = HTTP_URI_FIELD_HOST;

       break;

+

+    case UrlParserHostIpv6:

+      Field = HTTP_URI_FIELD_HOST;

+      break;

       

     case UrlParserPort:

       Field = HTTP_URI_FIELD_PORT;