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Add StrToIp functions to NetLib.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9798 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
tye1
2010-01-25 02:19:04 +00:00
parent fa8a1af2eb
commit e4ef0031cd
2 changed files with 464 additions and 1 deletions
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90
MdeModulePkg/Include/Library/NetLib.h
View File

@ -1195,9 +1195,97 @@ NetLibDefaultUnload (
IN EFI_HANDLE ImageHandle IN EFI_HANDLE ImageHandle
); );
/**
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
);
/**
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
);
/**
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
);
/**
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
);
/**
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
);
// //
//Various signatures // Various signatures
// //
#define NET_BUF_SIGNATURE SIGNATURE_32 ('n', 'b', 'u', 'f') #define NET_BUF_SIGNATURE SIGNATURE_32 ('n', 'b', 'u', 'f')
#define NET_VECTOR_SIGNATURE SIGNATURE_32 ('n', 'v', 'e', 'c') #define NET_VECTOR_SIGNATURE SIGNATURE_32 ('n', 'v', 'e', 'c')

375
MdeModulePkg/Library/DxeNetLib/DxeNetLib.c
View File

@ -2410,3 +2410,378 @@ NetLibGetNicHandle (
gBS->FreePool (OpenBuffer); gBS->FreePool (OpenBuffer);
return Handle; 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;
}