diff options
Diffstat (limited to 'MdeModulePkg/Library')
| -rw-r--r-- | MdeModulePkg/Library/DxeNetLib/DxeNetLib.c | 375 |
1 files changed, 375 insertions, 0 deletions
diff --git a/MdeModulePkg/Library/DxeNetLib/DxeNetLib.c b/MdeModulePkg/Library/DxeNetLib/DxeNetLib.c index 5ff84a9fe1..9ab7ab07c0 100644 --- a/MdeModulePkg/Library/DxeNetLib/DxeNetLib.c +++ b/MdeModulePkg/Library/DxeNetLib/DxeNetLib.c @@ -2410,3 +2410,378 @@ NetLibGetNicHandle ( gBS->FreePool (OpenBuffer);
return Handle;
}
+
+/**
+ Convert one Null-terminated ASCII string (decimal dotted) to EFI_IPv4_ADDRESS.
+
+ @param[in] String The pointer to the Ascii string.
+ @param[out] Ip4Address The pointer to the converted IPv4 address.
+
+ @retval EFI_SUCCESS Convert to IPv4 address successfully.
+ @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip4Address is NULL.
+
+**/
+EFI_STATUS
+NetLibAsciiStrToIp4 (
+ IN CONST CHAR8 *String,
+ OUT EFI_IPv4_ADDRESS *Ip4Address
+ )
+{
+ UINT8 Index;
+ CHAR8 *Ip4Str;
+ CHAR8 *TempStr;
+ UINTN NodeVal;
+
+ if ((String == NULL) || (Ip4Address == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Ip4Str = (CHAR8 *) String;
+
+ for (Index = 0; Index < 4; Index++) {
+ TempStr = Ip4Str;
+
+ while ((*Ip4Str != '\0') && (*Ip4Str != '.')) {
+ Ip4Str++;
+ }
+
+ //
+ // The IPv4 address is X.X.X.X
+ //
+ if (*Ip4Str == '.') {
+ if (Index == 3) {
+ return EFI_INVALID_PARAMETER;
+ }
+ } else {
+ if (Index != 3) {
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+
+ NodeVal = AsciiStrDecimalToUintn (TempStr);
+ if (NodeVal > 0xFF) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Ip4Address->Addr[Index] = (UINT8) NodeVal;
+
+ Ip4Str++;
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Convert one Null-terminated ASCII string to EFI_IPv6_ADDRESS. The format of the
+ string is defined in RFC 4291 - Text Pepresentation of Addresses.
+
+ @param[in] String The pointer to the Ascii string.
+ @param[out] Ip6Address The pointer to the converted IPv6 address.
+
+ @retval EFI_SUCCESS Convert to IPv6 address successfully.
+ @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip6Address is NULL.
+
+**/
+EFI_STATUS
+NetLibAsciiStrToIp6 (
+ IN CONST CHAR8 *String,
+ OUT EFI_IPv6_ADDRESS *Ip6Address
+ )
+{
+ UINT8 Index;
+ CHAR8 *Ip6Str;
+ CHAR8 *TempStr;
+ CHAR8 *TempStr2;
+ UINT8 NodeCnt;
+ UINT8 TailNodeCnt;
+ UINT8 AllowedCnt;
+ UINTN NodeVal;
+ BOOLEAN Short;
+ BOOLEAN Update;
+
+ if ((String == NULL) || (Ip6Address == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Ip6Str = (CHAR8 *) String;
+ AllowedCnt = 6;
+
+ //
+ // An IPv6 address leading with : looks strange.
+ //
+ if (*Ip6Str == ':') {
+ if (*(Ip6Str + 1) != ':') {
+ return EFI_INVALID_PARAMETER;
+ } else {
+ AllowedCnt = 7;
+ }
+ }
+
+ ZeroMem (Ip6Address, sizeof (EFI_IPv6_ADDRESS));
+
+ NodeCnt = 0;
+ TailNodeCnt = 0;
+ Short = FALSE;
+ Update = FALSE;
+
+ for (Index = 0; (Index + 1) < 16; Index = (UINT8) (Index + 2)) {
+ TempStr = Ip6Str;
+
+ while ((*Ip6Str != '\0') && (*Ip6Str != ':')) {
+ Ip6Str++;
+ }
+
+ if ((*Ip6Str == '\0') && (Index != 14)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (*Ip6Str == ':') {
+ if (*(Ip6Str + 1) == ':') {
+ if ((*(Ip6Str + 2) == '0') || (NodeCnt > 6)) {
+ //
+ // ::0 looks strange. report error to user.
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Skip the abbreviation part of IPv6 address.
+ //
+ TempStr2 = Ip6Str + 2;
+ while ((*TempStr2 != '\0')) {
+ if (*TempStr2 == ':') {
+ if (*(TempStr2 + 1) == ':') {
+ //
+ // :: can only appear once in IPv6 address.
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+
+ TailNodeCnt++;
+ if (TailNodeCnt >= (AllowedCnt - NodeCnt)) {
+ //
+ // :: indicates one or more groups of 16 bits of zeros.
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+
+ TempStr2++;
+ }
+
+ Short = TRUE;
+ Update = TRUE;
+
+ Ip6Str = Ip6Str + 2;
+ } else {
+ Ip6Str++;
+ NodeCnt++;
+ if ((Short && (NodeCnt > 6)) || (!Short && (NodeCnt > 7))) {
+ //
+ // There are more than 8 groups of 16 bits of zeros.
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+ }
+
+ //
+ // Convert the Str to IPv6 address.
+ //
+ NodeVal = AsciiStrHexToUintn (TempStr);
+ if ((NodeVal > 0xFFFF) || (Index > 14)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Ip6Address->Addr[Index] = (UINT8) (NodeVal >> 8);
+ Ip6Address->Addr[Index + 1] = (UINT8) (NodeVal & 0xFF);
+
+ //
+ // Skip the groups of zeros by ::
+ //
+ if (Short && Update) {
+ Index = (UINT8) (16 - (TailNodeCnt + 2) * 2);
+ Update = FALSE;
+ }
+ }
+
+ if ((!Short && Index != 16) || (*Ip6Str != '\0')) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Convert one Null-terminated Unicode string (decimal dotted) to EFI_IPv4_ADDRESS.
+
+ @param[in] String The pointer to the Ascii string.
+ @param[out] Ip4Address The pointer to the converted IPv4 address.
+
+ @retval EFI_SUCCESS Convert to IPv4 address successfully.
+ @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip4Address is NULL.
+ @retval EFI_OUT_OF_RESOURCES Fail to perform the operation due to lack of resource.
+
+**/
+EFI_STATUS
+NetLibStrToIp4 (
+ IN CONST CHAR16 *String,
+ OUT EFI_IPv4_ADDRESS *Ip4Address
+ )
+{
+ CHAR8 *Ip4Str;
+ EFI_STATUS Status;
+
+ if ((String == NULL) || (Ip4Address == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Ip4Str = (CHAR8 *) AllocatePool ((StrLen (String) + 1) * sizeof (CHAR8));
+ if (Ip4Str == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ UnicodeStrToAsciiStr (String, Ip4Str);
+
+ Status = NetLibAsciiStrToIp4 (Ip4Str, Ip4Address);
+
+ FreePool (Ip4Str);
+
+ return Status;
+}
+
+
+/**
+ Convert one Null-terminated Unicode string to EFI_IPv6_ADDRESS. The format of
+ the string is defined in RFC 4291 - Text Pepresentation of Addresses.
+
+ @param[in] String The pointer to the Ascii string.
+ @param[out] Ip6Address The pointer to the converted IPv6 address.
+
+ @retval EFI_SUCCESS Convert to IPv6 address successfully.
+ @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip6Address is NULL.
+ @retval EFI_OUT_OF_RESOURCES Fail to perform the operation due to lack of resource.
+
+**/
+EFI_STATUS
+NetLibStrToIp6 (
+ IN CONST CHAR16 *String,
+ OUT EFI_IPv6_ADDRESS *Ip6Address
+ )
+{
+ CHAR8 *Ip6Str;
+ EFI_STATUS Status;
+
+ if ((String == NULL) || (Ip6Address == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Ip6Str = (CHAR8 *) AllocatePool ((StrLen (String) + 1) * sizeof (CHAR8));
+ if (Ip6Str == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ UnicodeStrToAsciiStr (String, Ip6Str);
+
+ Status = NetLibAsciiStrToIp6 (Ip6Str, Ip6Address);
+
+ FreePool (Ip6Str);
+
+ return Status;
+}
+
+/**
+ Convert one Null-terminated Unicode string to EFI_IPv6_ADDRESS and prefix length.
+ The format of the string is defined in RFC 4291 - Text Pepresentation of Addresses
+ Prefixes: ipv6-address/prefix-length.
+
+ @param[in] String The pointer to the Ascii string.
+ @param[out] Ip6Address The pointer to the converted IPv6 address.
+ @param[out] PrefixLength The pointer to the converted prefix length.
+
+ @retval EFI_SUCCESS Convert to IPv6 address successfully.
+ @retval EFI_INVALID_PARAMETER The string is mal-formated or Ip6Address is NULL.
+ @retval EFI_OUT_OF_RESOURCES Fail to perform the operation due to lack of resource.
+
+**/
+EFI_STATUS
+NetLibStrToIp6andPrefix (
+ IN CONST CHAR16 *String,
+ OUT EFI_IPv6_ADDRESS *Ip6Address,
+ OUT UINT8 *PrefixLength
+ )
+{
+ CHAR8 *Ip6Str;
+ CHAR8 *PrefixStr;
+ CHAR8 *TempStr;
+ EFI_STATUS Status;
+ UINT8 Length;
+
+ if ((String == NULL) || (Ip6Address == NULL) || (PrefixLength == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Ip6Str = (CHAR8 *) AllocatePool ((StrLen (String) + 1) * sizeof (CHAR8));
+ if (Ip6Str == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ UnicodeStrToAsciiStr (String, Ip6Str);
+
+ //
+ // Get the sub string describing prefix length.
+ //
+ TempStr = Ip6Str;
+ while (*TempStr != '\0' && (*TempStr != '/')) {
+ TempStr++;
+ }
+
+ if (*TempStr == '/') {
+ PrefixStr = TempStr + 1;
+ } else {
+ PrefixStr = NULL;
+ }
+
+ //
+ // Get the sub string describing IPv6 address and convert it.
+ //
+ *TempStr = '\0';
+
+ Status = NetLibAsciiStrToIp6 (Ip6Str, Ip6Address);
+ if (EFI_ERROR (Status)) {
+ goto Exit;
+ }
+
+ //
+ // Convert the string to prefix length
+ //
+ Length = 0;
+ if (PrefixStr != NULL) {
+
+ Status = EFI_INVALID_PARAMETER;
+
+ while (*PrefixStr != '\0') {
+ if (NET_IS_DIGIT (*PrefixStr)) {
+ Length = (UINT8) (Length * 10 + (*PrefixStr - '0'));
+ if (Length >= IP6_PREFIX_NUM) {
+ goto Exit;
+ }
+ } else {
+ goto Exit;
+ }
+
+ PrefixStr++;
+ }
+ }
+
+ *PrefixLength = Length;
+ Status = EFI_SUCCESS;
+
+Exit:
+
+ FreePool (Ip6Str);
+ return Status;
+}
+
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