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[edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code while fail parsing cmd-line

Gao, Zhichao posted 1 patch 4 years, 4 months ago
Failed in applying to current master (apply log)
ShellPkg/Application/Shell/ShellProtocol.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
[edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code while fail parsing cmd-line
Posted by Gao, Zhichao 4 years, 4 months ago 
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2395

Errors happened in the arguments parsing is not a critical error.
And it would miss the error status code in the release version of shell.
So replace the ASSERT with returning error status code while fail
parsing command-line in UpdateArgcArgv.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Linson Augustine <linson.augustine@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
---
 ShellPkg/Application/Shell/ShellProtocol.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ShellPkg/Application/Shell/ShellProtocol.c b/ShellPkg/Application/Shell/ShellProtocol.c
index 5e529b6568..f0362a42d8 100644
--- a/ShellPkg/Application/Shell/ShellProtocol.c
+++ b/ShellPkg/Application/Shell/ShellProtocol.c
@@ -1497,7 +1497,10 @@ InternalShellExecuteDevicePath(
     ShellParamsProtocol.StdOut  = ShellInfoObject.NewShellParametersProtocol->StdOut;
     ShellParamsProtocol.StdErr  = ShellInfoObject.NewShellParametersProtocol->StdErr;
     Status = UpdateArgcArgv(&ShellParamsProtocol, NewCmdLine, Efi_Application, NULL, NULL);
-    ASSERT_EFI_ERROR(Status);
+    if (EFI_ERROR (Status)) {
+      goto UnloadImage;
+    }
+
     //
     // Replace Argv[0] with the full path of the binary we're executing:
     // If the command line was "foo", the binary might be called "foo.efi".
-- 
2.21.0.windows.1


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Re: [edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code while fail parsing cmd-line
Posted by Philippe Mathieu-Daudé 4 years, 4 months ago 
On 12/2/19 1:53 AM, Gao, Zhichao via Groups.Io wrote:
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2395
> 
> Errors happened in the arguments parsing is not a critical error.
> And it would miss the error status code in the release version of shell.
> So replace the ASSERT with returning error status code while fail
> parsing command-line in UpdateArgcArgv.
> 
> Cc: Ray Ni <ray.ni@intel.com>
> Cc: Linson Augustine <linson.augustine@intel.com>
> Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
> ---
>   ShellPkg/Application/Shell/ShellProtocol.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/ShellPkg/Application/Shell/ShellProtocol.c b/ShellPkg/Application/Shell/ShellProtocol.c
> index 5e529b6568..f0362a42d8 100644
> --- a/ShellPkg/Application/Shell/ShellProtocol.c
> +++ b/ShellPkg/Application/Shell/ShellProtocol.c
> @@ -1497,7 +1497,10 @@ InternalShellExecuteDevicePath(
>       ShellParamsProtocol.StdOut  = ShellInfoObject.NewShellParametersProtocol->StdOut;
>       ShellParamsProtocol.StdErr  = ShellInfoObject.NewShellParametersProtocol->StdErr;
>       Status = UpdateArgcArgv(&ShellParamsProtocol, NewCmdLine, Efi_Application, NULL, NULL);
> -    ASSERT_EFI_ERROR(Status);
> +    if (EFI_ERROR (Status)) {

UpdateArgcArgv() is documented to only return EFI_OUT_OF_RESOURCES as 
error, however it calls ParseCommandLineToArgs() which - also not 
documented - returns EFI_INVALID_PARAMETER.
I suppose this is the "not critical" error this BZ is trying to catch.

Should we force Status to EFI_INVALID_PARAMETER before returning, is it 
safer to return EFI_OUT_OF_RESOURCES if it ever occurs? Should we assert 
if Status is EFI_OUT_OF_RESOURCES?

> +      goto UnloadImage;
> +    }
> +
>       //
>       // Replace Argv[0] with the full path of the binary we're executing:
>       // If the command line was "foo", the binary might be called "foo.efi".
> 


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Re: [edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code while fail parsing cmd-line
Posted by Gao, Zhichao 4 years, 4 months ago 

> -----Original Message-----
> From: Philippe Mathieu-Daudé [mailto:philmd@redhat.com]
> Sent: Monday, December 2, 2019 6:21 PM
> To: devel@edk2.groups.io; Gao, Zhichao <zhichao.gao@intel.com>
> Cc: Ni, Ray <ray.ni@intel.com>; Augustine, Linson <linson.augustine@intel.com>
> Subject: Re: [edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code
> while fail parsing cmd-line
> 
> On 12/2/19 1:53 AM, Gao, Zhichao via Groups.Io wrote:
> > REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2395
> >
> > Errors happened in the arguments parsing is not a critical error.
> > And it would miss the error status code in the release version of shell.
> > So replace the ASSERT with returning error status code while fail
> > parsing command-line in UpdateArgcArgv.
> >
> > Cc: Ray Ni <ray.ni@intel.com>
> > Cc: Linson Augustine <linson.augustine@intel.com>
> > Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
> > ---
> >   ShellPkg/Application/Shell/ShellProtocol.c | 5 ++++-
> >   1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/ShellPkg/Application/Shell/ShellProtocol.c
> > b/ShellPkg/Application/Shell/ShellProtocol.c
> > index 5e529b6568..f0362a42d8 100644
> > --- a/ShellPkg/Application/Shell/ShellProtocol.c
> > +++ b/ShellPkg/Application/Shell/ShellProtocol.c
> > @@ -1497,7 +1497,10 @@ InternalShellExecuteDevicePath(
> >       ShellParamsProtocol.StdOut  =
> ShellInfoObject.NewShellParametersProtocol->StdOut;
> >       ShellParamsProtocol.StdErr  =
> ShellInfoObject.NewShellParametersProtocol->StdErr;
> >       Status = UpdateArgcArgv(&ShellParamsProtocol, NewCmdLine,
> Efi_Application, NULL, NULL);
> > -    ASSERT_EFI_ERROR(Status);
> > +    if (EFI_ERROR (Status)) {
> 
> UpdateArgcArgv() is documented to only return EFI_OUT_OF_RESOURCES as
> error, however it calls ParseCommandLineToArgs() which - also not documented
> - returns EFI_INVALID_PARAMETER.
> I suppose this is the "not critical" error this BZ is trying to catch.
> 
> Should we force Status to EFI_INVALID_PARAMETER before returning, is it safer
> to return EFI_OUT_OF_RESOURCES if it ever occurs? Should we assert if Status is
> EFI_OUT_OF_RESOURCES?

It is fine to return EFI_OUT_OF_RESOURCES of this function as it descripts in its function comments. And all the EFI_OUT_OF_RESOURCES is returned due to the failure of memory allocating.
And here is an issue of this patch, missing add the return description "EFI_INVALID_PARAMETER" of UpdateArgcArgv  and ParseCommandLineToArgs.
I would add that in the V2 version.

Thanks,
Zhichao

> 
> > +      goto UnloadImage;
> > +    }
> > +
> >       //
> >       // Replace Argv[0] with the full path of the binary we're executing:
> >       // If the command line was "foo", the binary might be called "foo.efi".
> >


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Re: [edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code while fail parsing cmd-line
Posted by Philippe Mathieu-Daudé 4 years, 4 months ago 
Hi Zhichao,

On 12/2/19 12:04 PM, Gao, Zhichao wrote:
>> -----Original Message-----
>> From: Philippe Mathieu-Daudé [mailto:philmd@redhat.com]
>> Sent: Monday, December 2, 2019 6:21 PM
>> To: devel@edk2.groups.io; Gao, Zhichao <zhichao.gao@intel.com>
>> Cc: Ni, Ray <ray.ni@intel.com>; Augustine, Linson <linson.augustine@intel.com>
>> Subject: Re: [edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code
>> while fail parsing cmd-line
>>
>> On 12/2/19 1:53 AM, Gao, Zhichao via Groups.Io wrote:
>>> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2395
>>>
>>> Errors happened in the arguments parsing is not a critical error.
>>> And it would miss the error status code in the release version of shell.
>>> So replace the ASSERT with returning error status code while fail
>>> parsing command-line in UpdateArgcArgv.
>>>
>>> Cc: Ray Ni <ray.ni@intel.com>
>>> Cc: Linson Augustine <linson.augustine@intel.com>
>>> Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
>>> ---
>>>    ShellPkg/Application/Shell/ShellProtocol.c | 5 ++++-
>>>    1 file changed, 4 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/ShellPkg/Application/Shell/ShellProtocol.c
>>> b/ShellPkg/Application/Shell/ShellProtocol.c
>>> index 5e529b6568..f0362a42d8 100644
>>> --- a/ShellPkg/Application/Shell/ShellProtocol.c
>>> +++ b/ShellPkg/Application/Shell/ShellProtocol.c
>>> @@ -1497,7 +1497,10 @@ InternalShellExecuteDevicePath(
>>>        ShellParamsProtocol.StdOut  =
>> ShellInfoObject.NewShellParametersProtocol->StdOut;
>>>        ShellParamsProtocol.StdErr  =
>> ShellInfoObject.NewShellParametersProtocol->StdErr;
>>>        Status = UpdateArgcArgv(&ShellParamsProtocol, NewCmdLine,
>> Efi_Application, NULL, NULL);
>>> -    ASSERT_EFI_ERROR(Status);
>>> +    if (EFI_ERROR (Status)) {
>>
>> UpdateArgcArgv() is documented to only return EFI_OUT_OF_RESOURCES as
>> error, however it calls ParseCommandLineToArgs() which - also not documented
>> - returns EFI_INVALID_PARAMETER.
>> I suppose this is the "not critical" error this BZ is trying to catch.
>>
>> Should we force Status to EFI_INVALID_PARAMETER before returning, is it safer
>> to return EFI_OUT_OF_RESOURCES if it ever occurs? Should we assert if Status is
>> EFI_OUT_OF_RESOURCES?
> 
> It is fine to return EFI_OUT_OF_RESOURCES of this function as it descripts in its function comments. And all the EFI_OUT_OF_RESOURCES is returned due to the failure of memory allocating.

OK, thanks for clearing that with me.

> And here is an issue of this patch, missing add the return description "EFI_INVALID_PARAMETER" of UpdateArgcArgv  and ParseCommandLineToArgs.
> I would add that in the V2 version.

This is not related to the BZ you are trying to solve, so no need for a 
v2 IMO (and I prepared those patches locally).

Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>

>>
>>> +      goto UnloadImage;
>>> +    }
>>> +
>>>        //
>>>        // Replace Argv[0] with the full path of the binary we're executing:
>>>        // If the command line was "foo", the binary might be called "foo.efi".
>>>
> 


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Re: [edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code while fail parsing cmd-line
Posted by Gao, Zhichao 4 years, 4 months ago 
Hi Ray,

Can you help to review the patch?

Thanks,
Zhichao

> -----Original Message-----
> From: devel@edk2.groups.io [mailto:devel@edk2.groups.io] On Behalf Of
> Philippe Mathieu-Daudé
> Sent: Monday, December 2, 2019 7:10 PM
> To: Gao, Zhichao <zhichao.gao@intel.com>; devel@edk2.groups.io
> Cc: Ni, Ray <ray.ni@intel.com>; Augustine, Linson
> <linson.augustine@intel.com>
> Subject: Re: [edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code
> while fail parsing cmd-line
> 
> Hi Zhichao,
> 
> On 12/2/19 12:04 PM, Gao, Zhichao wrote:
> >> -----Original Message-----
> >> From: Philippe Mathieu-Daudé [mailto:philmd@redhat.com]
> >> Sent: Monday, December 2, 2019 6:21 PM
> >> To: devel@edk2.groups.io; Gao, Zhichao <zhichao.gao@intel.com>
> >> Cc: Ni, Ray <ray.ni@intel.com>; Augustine, Linson
> >> <linson.augustine@intel.com>
> >> Subject: Re: [edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return
> >> error code while fail parsing cmd-line
> >>
> >> On 12/2/19 1:53 AM, Gao, Zhichao via Groups.Io wrote:
> >>> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2395
> >>>
> >>> Errors happened in the arguments parsing is not a critical error.
> >>> And it would miss the error status code in the release version of shell.
> >>> So replace the ASSERT with returning error status code while fail
> >>> parsing command-line in UpdateArgcArgv.
> >>>
> >>> Cc: Ray Ni <ray.ni@intel.com>
> >>> Cc: Linson Augustine <linson.augustine@intel.com>
> >>> Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
> >>> ---
> >>>    ShellPkg/Application/Shell/ShellProtocol.c | 5 ++++-
> >>>    1 file changed, 4 insertions(+), 1 deletion(-)
> >>>
> >>> diff --git a/ShellPkg/Application/Shell/ShellProtocol.c
> >>> b/ShellPkg/Application/Shell/ShellProtocol.c
> >>> index 5e529b6568..f0362a42d8 100644
> >>> --- a/ShellPkg/Application/Shell/ShellProtocol.c
> >>> +++ b/ShellPkg/Application/Shell/ShellProtocol.c
> >>> @@ -1497,7 +1497,10 @@ InternalShellExecuteDevicePath(
> >>>        ShellParamsProtocol.StdOut  =
> >> ShellInfoObject.NewShellParametersProtocol->StdOut;
> >>>        ShellParamsProtocol.StdErr  =
> >> ShellInfoObject.NewShellParametersProtocol->StdErr;
> >>>        Status = UpdateArgcArgv(&ShellParamsProtocol, NewCmdLine,
> >> Efi_Application, NULL, NULL);
> >>> -    ASSERT_EFI_ERROR(Status);
> >>> +    if (EFI_ERROR (Status)) {
> >>
> >> UpdateArgcArgv() is documented to only return
> EFI_OUT_OF_RESOURCES as
> >> error, however it calls ParseCommandLineToArgs() which - also not
> >> documented
> >> - returns EFI_INVALID_PARAMETER.
> >> I suppose this is the "not critical" error this BZ is trying to catch.
> >>
> >> Should we force Status to EFI_INVALID_PARAMETER before returning, is
> >> it safer to return EFI_OUT_OF_RESOURCES if it ever occurs? Should we
> >> assert if Status is EFI_OUT_OF_RESOURCES?
> >
> > It is fine to return EFI_OUT_OF_RESOURCES of this function as it descripts
> in its function comments. And all the EFI_OUT_OF_RESOURCES is returned
> due to the failure of memory allocating.
> 
> OK, thanks for clearing that with me.
> 
> > And here is an issue of this patch, missing add the return description
> "EFI_INVALID_PARAMETER" of UpdateArgcArgv  and
> ParseCommandLineToArgs.
> > I would add that in the V2 version.
> 
> This is not related to the BZ you are trying to solve, so no need for a
> v2 IMO (and I prepared those patches locally).
> 
> Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
> 
> >>
> >>> +      goto UnloadImage;
> >>> +    }
> >>> +
> >>>        //
> >>>        // Replace Argv[0] with the full path of the binary we're executing:
> >>>        // If the command line was "foo", the binary might be called
> "foo.efi".
> >>>
> >
> 
> 
> 


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Re: [edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code while fail parsing cmd-line
Posted by Ni, Ray 4 years, 4 months ago 
Reviewed-by: Ray Ni <ray.ni@intel.com>

> -----Original Message-----
> From: Gao, Zhichao <zhichao.gao@intel.com>
> Sent: Monday, December 2, 2019 8:54 AM
> To: devel@edk2.groups.io
> Cc: Ni, Ray <ray.ni@intel.com>; Augustine, Linson <linson.augustine@intel.com>
> Subject: [PATCH] ShellPkg/ShellProtocol: Return error code while fail parsing cmd-line
> 
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2395
> 
> Errors happened in the arguments parsing is not a critical error.
> And it would miss the error status code in the release version of shell.
> So replace the ASSERT with returning error status code while fail
> parsing command-line in UpdateArgcArgv.
> 
> Cc: Ray Ni <ray.ni@intel.com>
> Cc: Linson Augustine <linson.augustine@intel.com>
> Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
> ---
>  ShellPkg/Application/Shell/ShellProtocol.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/ShellPkg/Application/Shell/ShellProtocol.c b/ShellPkg/Application/Shell/ShellProtocol.c
> index 5e529b6568..f0362a42d8 100644
> --- a/ShellPkg/Application/Shell/ShellProtocol.c
> +++ b/ShellPkg/Application/Shell/ShellProtocol.c
> @@ -1497,7 +1497,10 @@ InternalShellExecuteDevicePath(
>      ShellParamsProtocol.StdOut  = ShellInfoObject.NewShellParametersProtocol->StdOut;
>      ShellParamsProtocol.StdErr  = ShellInfoObject.NewShellParametersProtocol->StdErr;
>      Status = UpdateArgcArgv(&ShellParamsProtocol, NewCmdLine, Efi_Application, NULL, NULL);
> -    ASSERT_EFI_ERROR(Status);
> +    if (EFI_ERROR (Status)) {
> +      goto UnloadImage;
> +    }
> +
>      //
>      // Replace Argv[0] with the full path of the binary we're executing:
>      // If the command line was "foo", the binary might be called "foo.efi".
> --
> 2.21.0.windows.1


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Re: [edk2-devel] [PATCH] ShellPkg/ShellProtocol: Return error code while fail parsing cmd-line
Posted by Augustine, Linson 4 years, 4 months ago 
Reviewed by Linson Augustine <Linson.augustine@intel.com>

Regards,
Linson.

-----Original Message-----
From: Gao, Zhichao <zhichao.gao@intel.com> 
Sent: Monday, December 2, 2019 6:24 AM
To: devel@edk2.groups.io
Cc: Ni, Ray <ray.ni@intel.com>; Augustine, Linson <linson.augustine@intel.com>
Subject: [PATCH] ShellPkg/ShellProtocol: Return error code while fail parsing cmd-line

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2395

Errors happened in the arguments parsing is not a critical error.
And it would miss the error status code in the release version of shell.
So replace the ASSERT with returning error status code while fail parsing command-line in UpdateArgcArgv.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Linson Augustine <linson.augustine@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
---
 ShellPkg/Application/Shell/ShellProtocol.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ShellPkg/Application/Shell/ShellProtocol.c b/ShellPkg/Application/Shell/ShellProtocol.c
index 5e529b6568..f0362a42d8 100644
--- a/ShellPkg/Application/Shell/ShellProtocol.c
+++ b/ShellPkg/Application/Shell/ShellProtocol.c
@@ -1497,7 +1497,10 @@ InternalShellExecuteDevicePath(
     ShellParamsProtocol.StdOut  = ShellInfoObject.NewShellParametersProtocol->StdOut;
     ShellParamsProtocol.StdErr  = ShellInfoObject.NewShellParametersProtocol->StdErr;
     Status = UpdateArgcArgv(&ShellParamsProtocol, NewCmdLine, Efi_Application, NULL, NULL);
-    ASSERT_EFI_ERROR(Status);
+    if (EFI_ERROR (Status)) {
+      goto UnloadImage;
+    }
+
     //
     // Replace Argv[0] with the full path of the binary we're executing:
     // If the command line was "foo", the binary might be called "foo.efi".
--
2.21.0.windows.1


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