MdeModulePkg: Define a general function to create DNS QName

[mirror_edk2.git] / MdeModulePkg / Include / Library / NetLib.h

diff --git a/MdeModulePkg/Include/Library/NetLib.h b/MdeModulePkg/Include/Library/NetLib.h
index e4456fa6c2715697809e3e1b01da19e78466955d..b871a857f950a337fadd6efea267cf80e917292c 100644 (file)
--- a/MdeModulePkg/Include/Library/NetLib.h
+++ b/MdeModulePkg/Include/Library/NetLib.h
@@ -37,6 +37,8 @@ typedef UINT16          TCP_PORTNO;
 #define  EFI_IP_PROTO_ICMP     0x01\r
 #define  IP4_PROTO_IGMP        0x02\r
 #define  IP6_ICMP              58\r
+#define  DNS_MAX_NAME_SIZE     255\r
+#define  DNS_MAX_MESSAGE_SIZE  512\r
 \r
 //\r
 // The address classification\r
@@ -2156,4 +2158,24 @@ NetLibGetSystemGuid (
   OUT EFI_GUID              *SystemGuid\r
   );\r
 \r
+/**\r
+  Create Dns QName according the queried domain name. \r
+  QName is a domain name represented as a sequence of labels, \r
+  where each label consists of a length octet followed by that \r
+  number of octets. The QName terminates with the zero \r
+  length octet for the null label of the root. Caller should \r
+  take responsibility to free the buffer in returned pointer.\r
+\r
+  @param  DomainName    The pointer to the queried domain name string.  \r
+\r
+  @retval NULL          Failed to fill QName.\r
+  @return               QName filled successfully.\r
+  \r
+**/ \r
+CHAR8 *\r
+EFIAPI\r
+NetLibCreateDnsQName (\r
+  IN  CHAR16              *DomainName\r
+  );\r
+\r
 #endif\r