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At present this function returns 1 on success and 0 on failure. But in
the latter case it provides no indication of what went wrong.
If an attempt is made to delete a non-existent variable, the caller may
want to ignore this error. This happens when setting a non-existent
variable to "", for example.
Update the function to return 0 on success and a useful error code on
failure. Add a function comment too.
Make sure that env_set() does not return an error if it is deleting a
variable that doesn't exist. We could update env_set() to return useful
error numbers also, but that is beyond the scope of this change.
Signed-off-by: Simon Glass <sjg@chromium.org>
wip
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'env -e -i' syntax was changed from "," to ":". Account for this also
in the documentation.
Fixes: 2b3fbcb59f41 ("efi_loader: use ':' as separator for setenv -i")
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Correct the usage description for setenv -e too.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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This patch adds a sanity check that avoids 'size' to overflow and crash when
importing an environment that contains a checksum. Example with the wrong size
that causes the crash:
=> env import -c 0x4100000 3 v1
This assumes that v1 has already been successfully exported with
'env export -c -s 0x100 0x4100000 v1'
Signed-off-by: Pedro Aguilar <pedro.aguilar@vimar.com>
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Add the new command 'env select' to force the persistent storage
of environment, saved in gd->env_load_prio.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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Add the new command env load to load the environment from
the current location gd->env_load_prio.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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Check the current ENV location, dynamically provided by the weak
function env_get_location to be sure that the environment can be
persistent.
The compilation flag ENV_IS_IN_DEVICE is not enough when the board
dynamically select the available storage location (according boot
device for example).
This patch solves issue for stm32mp1 platform, when the boot device
is USB.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
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The "env info" can be use for test with -d and -p parameter,
in scripting case the output of the command is not needed.
This patch allows to deactivate this output with a new option "-q".
For example, we can save the environment if default
environment is used and persistent storage is managed with:
if env info -p -d -q; then env save; fi
Without the quiet option, I have the unnecessary traces
First boot:
Default environment is used
Environment can be persisted
Saving Environment to EXT4... File System is consistent
Next boot:
Environment was loaded from persistent storage
Environment can be persisted
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
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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>
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Use the define ENV_IS_IN_DEVICE to test if one the
CONFIG_ENV_IS_IN_... is defined and correct the detection of
persistent storage support in the command "env info"
if CONFIG_ENV_IS_NOWHERE is activated.
Since commit 60d5ed2593c9 ("env: allow ENV_IS_NOWHERE with
other storage target") test CONFIG_ENV_IS_NOWHERE is not
enough; see also commit 953db29a1e9c6 ("env: enable saveenv
command when one CONFIG_ENV_IS_IN is activated").
This patch avoids issue for this command in stm32mp1 platform.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
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Move this uncommon header out of the common header.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Move this header out of the common header.
Signed-off-by: Simon Glass <sjg@chromium.org>
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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>
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Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.
Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.
Signed-off-by: Simon Glass <sjg@chromium.org>
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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>
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Part of the env cleanup moved this out of the environment code and into
the net code. However, this helper is sometimes needed even when the net
stack isn't included.
Move the helper to lib/net_utils.c like it's similarly-purposed
string_to_ip(). Also rename the moved function to similar naming.
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reported-by: Ondrej Jirman <megous@megous.com>
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Migrate from_env() from pxe.c to nvedit.c as it's not pxe specific.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
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Drop inclusion of crc.h in common.h and use the correct header directly
instead.
With this we can drop the conflicting definition in fw_env.h and rely on
the crc.h header, which is already included.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
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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>
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This file contains lots of internal details about the environment. Most
code can include env.h instead, calling the functions there as needed.
Rename this file and add a comment at the top to indicate its internal
nature.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
[trini: Fixup apalis-tk1.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
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Avoid using a typedef here which is unnecessary. Add an 'env_' prefix to
both the enum and its members to make it clear that these are related to
the environment.
Add an ENV prefix to these two flags so that it is clear what they relate
to. Also move them to env.h since they are part of the public API. Use an
enum rather than a #define to tie them together.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Add an ENV prefix to these two flags so that it is clear what they relate
to. Also move them to env.h since they are part of the public API. Use an
enum rather than a #define to tie them together.
Signed-off-by: Simon Glass <sjg@chromium.org>
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U-Boot is not supposed to use typedef for structs anymore. Also this name
is the same as the ENTRY() macro used in assembler files, and 'entry'
itself is widely used in U-Boot (>8k matches).
Drop the typedef and rename the struct to env_entry to reduce confusion.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
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Move these functions to the new header file and rename set_default_env()
to env_set_default() so that it has a consistent env_ prefix.
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
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Move this function to the new header file and rename it so it has an env_
prefix.
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
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This function fits better with the network subsystem, so move it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Joe Hershberger <joe.hershberger@ni.com>
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Move envmatch() over to the new header file. Also rename it to env_match()
to better line up with other functions.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
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Move this function over to the new header file. Also rename it to have an
env_ prefix like the other functions.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
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this patch adds basic changes for adding a erase-subcommand to env
with this command the environment stored on non-volatile storage written
by saveenv can be cleared.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
squashed fixes
- start message with "Erasing"
- mark erase-function as optional
- env: separate eraseenv from saveenv
Suggested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
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Add sub-command 'env info' to display environment information:
- env_valid : is environment valid
- env_ready : is environment imported into hash table
- env_use_default : is default environment using
This command can be optionally used for evaluation in scripts:
[-d] : evaluate whether default environment is used
[-p] : evaluate whether environment can be persisted
The result of multiple evaluations will be combined with AND.
Signed-off-by: Leo Ruan <tingquan.ruan@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Do not enable by default]
Signed-off-by: Tom Rini <trini@konsulko.com>
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- Add Ethernet support for STM32MP1
- Add saveenv support for STM32MP1
- Add STM32MP1 Avenger96 board support
- Add SPI driver suport for STM32MP1
- Add watchdog support for STM32MP1
- Update power supply check via USB TYPE-C for STM32MP1 discovery board
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Introduce ENV_IS_IN_DEVICE to test if one the
CONFIG_ENV_IS_IN_ is defined and support the command
saveenv even if CONFIG_ENV_IS_NOWHERE is activated
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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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>
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"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>
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len is defined as unsigned. So use %u for printf().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Fix failure to reimport exported checksummed, size constrained data block.
'env export -c' command ignores optional -s size argument when calculating checksum causing subsequent 'env import -c' to fail.
Signed-off-by: Neil Stainton <nstainton@asl-control.co.uk>
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While the `env export` can take as parameters variables to be exported,
`env import` does not have such a mechanism of variable selection.
Let's add the ability to add parameters at the end of the command for
variables to be imported.
Every env variable from the env to be imported passed by parameter to
this command will override the value of the variable in the current env.
If a variable exists in the current env but not in the imported env, if
this variable is passed as a parameter to env import, the variable will
be unset ONLY if the -d option is passed to env import, otherwise the
current value of the variable is kept.
If a variable exists in the imported env, the variable in the current
env will be set to the value of the one from the imported env.
All the remaining variables are left untouched.
As the size parameter of env import is positional but optional, let's
add the possibility to use the sentinel '-' for when we don't want to
give the size parameter (when the env is '\0' terminated) but we pass a
list of variables at the end of the command.
env import addr
env import addr -
env import addr size
env import addr - foo1 foo2
env import addr size foo1 foo2
are all valid.
env import -c addr
env import -c addr -
env import -c addr - foo1 foo2
are all invalid because they don't pass the size parameter required for
checking, while the following are valid.
env import addr size
env import addr size foo1 foo2
Nothing's changed for the other parameters or the overall behaviour.
One of its use case could be to load a secure environment from the
signed U-Boot binary and load only a handful of variables from an
other, unsecure, environment without completely losing control of
U-Boot.
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Tested-by: Alex Kiernan <alex.kiernan@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
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The error message should start with `## Error: ` so that it's easily
detectable by tests without needing to have a complex regexp for
matching all possible error message patterns.
Let's add the `## Error: ` prefix to the error messages since it's the
one already in use.
Suggested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
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The function set_default_env() sets the hashtable flags for import_r().
Formally set_default_env() doesn't accept flags from its callers. In
practice the caller can (un)set the H_INTERACTIVE flag, but it has to be
done using the first character of the function's string argument. Other
flags like H_FORCE can't be set by the caller.
Change the function to accept flags argument. The benefits are:
1. The caller will have to explicitly set the H_INTERACTIVE flag,
instead of un-setting it using a special char in a string.
2. Add the ability to propagate flags from the caller to himport(),
especially the H_FORCE flag from do_env_default() in nvedit.c that
currently gets ignored for "env default -a -f" commands.
3. Flags and messages will not be coupled together. A caller will be
able to set flags without passing a string and vice versa.
Please note:
The propagation of H_FORCE from do_env_default() does not introduce any
functional changes, because currently himport_r() is set to destroy the
old environment regardless if H_FORCE flag is set or not. More changes
are needed to utilize the propagation of H_FORCE.
Signed-off-by: Yaniv Levinsky <yaniv.levinsky@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
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The function set_default_vars() in common.c adds H_INTERACTIVE to the
h_import() flag, but the function has no way of telling if the command
actually was user directed like this flag suggest. The flag should be
set by the calling function do_env_default() in nvedit.c instead, where
the command is certainty user directed.
Move the H_INTERACTIVE flag from set_default_vars() to do_env_default().
Signed-off-by: Yaniv Levinsky <yaniv.levinsky@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
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The env_flag in do_env_default() doesn't get propagated and therefore
gets ignored by himport_r(). This breaks to ability to "forcibly" reset
variables to their default values using the environment command.
Scenario example of the problem:
# setenv kernel uImage
# setenv .flags kernel:so
# env default -f kernel
## Error: Can't overwrite "kernel"
himport_r: can't insert "kernel=zImage" into hash table
Change the call path so it will pass the flag correctly.
Signed-off-by: Yaniv Levinsky <yaniv.levinsky@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
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The naming convention for flags in nvedit.c is:
* The hashtable flag (defined in search.h) is named "env_flag"
* The command flag argument (defined in command.h) is named "flag"
This convention is kept in functions like do_env_print(), do_env_set()
and do_env_delete(), but not in do_env_default().
Rename the hashtable flag in do_env_default() from "flag" to "env_flag".
Rename the command flag in do_env_default() from "__flag" to "flag".
No functional change.
Signed-off-by: Yaniv Levinsky <yaniv.levinsky@compulab.co.il>
Reviewed-by: Igor Grinberg <grinberg@compulab.co.il>
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's/environemnt/environment/' and
's/Environemnt/Environment/'
Signed-off-by: Shyam Saini <shyam@amarulasolutions.com>
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When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
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In order that we can use eth_env_* even when CONFIG_NET isn't set, move
these functions to environment code from net code.
This fixes failures such as:
board/ti/am335x/built-in.o: In function `board_late_init':
board/ti/am335x/board.c:752: undefined reference to `eth_env_set_enetaddr'
u-boot/board/ti/am335x/board.c:766: undefined reference to `eth_env_set_enetaddr'
which caters for use cases such as:
commit f411b5cca48f ("board: am335x: Always set eth/eth1addr environment
variable")
when Ethernet is required in Linux, but not U-Boot.
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
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env_get_f calls env_get_char to load single characters from the
environment. However, the return value of env_get_char was not
checked for errors. Now if the env driver does not support the
.get_char call, env_get_f did not notice this and looped over the
whole size of the environment, calling env_get_char over 8000
times with the default settings, just to return an error in the
end.
Fix this by checking if env_get_char returns < 0.
Signed-off-by: Simon Goldschmidt <sgoldschmidt@de.pepperl-fuchs.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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The nvedit command is the only user of env_driver_lookup_default outside of
the environment code itself, and it uses it only to print the environment
it's about to save to during env save.
As we're about to rework the environment to be able to handle multiple
environment sources, we might not have an idea of what environment backend
is going to be used before trying (and possibly failing for some).
Therefore, it makes sense to remove that message and move it to the
env_save function itself. As a side effect, we also can get rid of the call
to env_driver_lookup_default that is also about to get refactored.
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Last user of this option went away in commit:
fdc7718999 ("board: usb_a9263: Update to support DT and DM")
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
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The recent changes to these files did not completely fix the previous
issues, or introduced different (minor) issues. In cmd/gpt.c we need to
dereference str_disk_guid to be sure that malloc worked. In
cmd/nvedit.c we need to be careful that we can also fit in that leading
space when adding to the string. And in tools/fit_image.c we need to
re-work the error handling slightly in fit_import_data() so that we only
call munmap() once. We have two error paths here, one where we have an
fd to close and one where we do not. Adjust labels to match this.
Reported-by: Coverity (CID: 167366, 167367, 167370)
Signed-off-by: Tom Rini <trini@konsulko.com>
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When we have multiple messages provided, we need to be sure that we do
not exceed the length of our 'message' buffer. In the for loop, make
sure that pos is not larger than message. Only copy in at most however
much of the message buffer remains. Finally, if we have not reached the
end of the message buffer, put in a space and NULL, and if we have,
ensure the buffer is now NULL termined.
Reported-by: Coverity (CID: 165116)
Signed-off-by: Tom Rini <trini@konsulko.com>
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U-Boot widely uses error() as a bit noisier variant of printf().
This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:
# define __compiletime_error(message) __attribute__((error(message)))
This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux. (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)
Let's convert error() into now treewide-available pr_err().
Done with the help of Coccinelle, excluing tools/ directory.
The semantic patch I used is as follows:
// <smpl>
@@@@
-error
+pr_err
(...)
// </smpl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
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