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MdeModulePkg: Add the EFI_PRINT2S_PROTOCOL

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Add the EFI_PRINT2S_PROTOCOL as a safe version of the EFI_PRINT2_PROTOCOL,
the EFI_PRINT2S_PROTOCOL replaces the following 2 services in
EFI_PRINT2_PROTOCOL:
UNICODE_VALUE_TO_STRING
ASCII_VALUE_TO_STRING

with:
UNICODE_VALUE_TO_STRING_S
ASCII_VALUE_TO_STRING_S

The 2 new services perform checks to the input parameters and will return
relative status to reflect the check result.

Return RETURN_INVALID_PARAMETER when:
1). The input Buffer is NULL.
2). The input BufferSize is greater than (PcdMaximumUnicodeStringLength *
sizeof (CHAR16) + 1) for UnicodeValueToStringS or greater than
PcdMaximumAsciiStringLength for AsciiValueToStringS.
3). The input Flags is not set properly.
4). The input Width is not smaller than MAXIMUM_VALUE_CHARACTERS.

Return RETURN_BUFFER_TOO_SMALL when:
1). The input BufferSize cannot hold the converted value.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Hao Wu
2017-02-08 11:20:37 +08:00
parent 51f0ceb4eb
commit e43adbafe8
5 changed files with 175 additions and 13 deletions
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7
MdeModulePkg/Universal/PrintDxe/PrintDxe.inf
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@@ -1,9 +1,9 @@
## @file
# Print DXE driver that produces Print2 Protocol.
# Print DXE driver that produces Print2 Protocols.
#
# This driver produces Print2 protocol layered on top of the PrintLib from the MdePkg.
# This driver produces Print2 protocols layered on top of the PrintLib from the MdePkg.
#
# Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
@@ -44,6 +44,7 @@
[Protocols]
gEfiPrint2ProtocolGuid ## PRODUCES
gEfiPrint2SProtocolGuid ## PRODUCES
[Depex]
TRUE