Commit graph

21 commits

Author SHA1 Message Date
Heinrich Schuchardt
a872b18a0f cmd: correct return value for printenv -e
If printenv -e is executed and the specified variable is not found, the
return value $? of the command should be 1 (false).

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-06-19 15:53:09 +02:00
Heinrich Schuchardt
983a5a2e72 cmd: printenv: simplify printing GUIDs
Use "%pS" to print text representations of GUIDs.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-19 16:16:33 +01:00
Heinrich Schuchardt
f4c1a14f96 efi_loader: eliminate EFI_CALL() in nvedit_efi.c
Reduce the code size by avoiding using the external UEFI API and using our
internal functions instead.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-09-11 11:02:02 +02:00
Simon Glass
7e5f460ec4 global: Convert simple_strtoul() with hex to hextoul()
It is a pain to have to specify the value 16 in each call. Add a new
hextoul() function and update the code to use it.

Add a proper comment to simple_strtoul() while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-08-02 13:32:14 -04:00
AKASHI Takahiro
f1eb346e33 env: efi: fix a wrong address dereference
Probably, a pointer to a variable in an inner block should not
be exposed to an outer block.

Fixes: c70f44817d ("efi_loader: simplify 'printenv -e'")
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
[trini: Don't make guid const now]
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-07-05 15:28:32 -04:00
Heinrich Schuchardt
2b3fbcb59f efi_loader: use ':' as separator for setenv -i
setenv -e -i <address>,<filesize> can be used to set a UEFI variable
from memory.

For separating an address and a size we use ':' in most commands.
Let's do the same for setenv -e -i.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-08-24 16:37:53 +02:00
Heinrich Schuchardt
c70f44817d efi_loader: simplify 'printenv -e'
Currently default output of 'printenv -e' is restricted to variables with
GUID EFI_GLOBAL_VARIABLE. This excludes db and dbx. As the number of
variables is small there is no need for this restriction.

If no GUID is provided, print all matching variables irrespective of GUID.

Always show the numeric value of the GUID.

If the GUID provided to 'setenv -e' is invalid, return CMD_RET_USAGE.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-07-16 12:37:03 +02:00
Heinrich Schuchardt
2a79c352ca efi_loader: display RO attribute in printenv -e
Let the 'printenv -e' command display the read only flag.
If the variable is time authenticated write the time stamp.

Avoid EFI_CALL() when calling SetVariable() and GetVariable().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-07-11 23:14:16 +02:00
Simon Glass
0914011310 command: Remove the cmd_tbl_t typedef
We should not use typedefs in U-Boot. They cannot be used as forward
declarations which means that header files must include the full header to
access them.

Drop the typedef and rename the struct to remove the _s suffix which is
now not useful.

This requires quite a few header-file additions.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 18:36:55 -04:00
Simon Glass
ba06b3c50b common: Drop uuid.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 14:53:28 -04:00
Heinrich Schuchardt
9900e4623a efi_loader: use logical and in do_env_print_efi()
If we want to check if two booleans are true, we should use a logical
conjunction (&&) and not a bitwise and-operator (&).

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-05-07 18:23:16 +02:00
AKASHI Takahiro
e50e2878b2 cmd: env: add "-at" option to "env set -e" command
With "-at" option, EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS
will be passed to SetVariable() to authenticate the variable.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2020-04-16 08:12:47 +02:00
AKASHI Takahiro
f757d04598 cmd: env: use appropriate guid for authenticated UEFI variable
A signature database variable is associated with a specific guid.
For convenience, if user doesn't supply any guid info, "env set|print -e"
should complement it.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2020-04-16 08:12:47 +02:00
AKASHI Takahiro
051aa89f46 cmd: env: extend "env [set|print] -e" to manage UEFI variables
With this patch, when setting UEFI variable with "env set -e" command,
we will be able to
- specify vendor guid with "-guid guid",
- specify variable attributes,  BOOTSERVICE_ACCESS, RUNTIME_ACCESS,
  respectively with "-bs" and "-rt",
- append a value instead of overwriting with "-a",
- use memory as variable's value instead of explicit values given
  at the command line with "-i address,size"

If guid is not explicitly given, default value will be used.

Meanwhile, "env print -e," will be modified so that it will NOT dump
a variable's value if '-n' is specified.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-10-30 17:49:41 +01:00
AKASHI Takahiro
6810caf856 cmd: env: fix a typo in a comment of do_env_set_efi()
A wrong function name is referred to in a comment of do_env_set_efi().

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-10-06 16:02:37 +02:00
Simon Glass
9fb625ce05 env: Move env_set() to env.h
Move env_set() over to the new header file.

Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2019-08-11 16:43:41 -04:00
AKASHI Takahiro
4b27a76132 cmd: env: add -nv option for UEFI non-volatile variable
With this option, -nv, at "setenv -e" command, a variable will be defined
as non-volatile.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-06-04 23:56:14 +02:00
AKASHI Takahiro
8190b4a3e0 cmd: env: print a message when setting UEFI variable failed
Error message will alert a user that setting/deleting a variable failed.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-06-04 22:09:26 +02:00
Heinrich Schuchardt
45203e0ccb efi_loader: memory leak in append value
When printing an UEFI variable an error may arise while converting an
illegal hexadecimal value. In this case a buffer is leaked.

Close the memory leak. Provide an error message.

Reported-by: Coverity (CID 185830)
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-02 18:17:50 +02:00
Heinrich Schuchardt
1fd7a47641 efi_loader: memory leak in efi_dump_single_var()
A misplaced return statement lead to a memory leak in
efi_dump_single_var().

Reported-by: Coverity (CID 185829)
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-03-20 18:16:53 +01:00
AKASHI Takahiro
49d81fdfb8 cmd: env: add "-e" option for handling UEFI variables
"env [print|set] -e" allows for handling uefi variables without
knowing details about mapping to corresponding u-boot variables.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-02-25 12:47:13 +01:00