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2025-06-17lib/uuid.c: restore support of system partition type for ESPPatrick Delaunay
Add support of optional shortname for parameter 'type' of gpt command (limited by UUID_STR_LEN) and a separate 'description' for UID format "%pUs" used in 'part list' output. When 'description' is absent in list_guid[], the optional shortname is used as fallback. Many partition types for EFI have no shortcut yet, but only description as they are only used to display information. This patch also restores the "system" as short name for EFI System Partition (ESP). Fixes: d54e1004b8b1 ("lib/uuid.c: use unique name for PARTITION_SYSTEM_GUID") Tested-by: Patrice Chotard <patrice.chotard@foss.st.com> Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2025-04-22lib/uuid.c: use unique name for PARTITION_SYSTEM_GUIDJerome Forissier
The name defined for PARTITION_SYSTEM_GUID in list_guid[] depends on configuration options. It is "system" if CONFIG_PARTITION_TYPE_GUID is enabled or "System Partition" if CONFIG_CMD_EFIDEBUG or CONFIG_EFI are enabled. In addition, the unit test in test/common/print.c is incorrect because it expects only "system" (or a hex GUID). Make things more consistent by using a clear and unique name: "EFI System Partition" whatever the configuration, and update the unit test accordingly. Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org> Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2025-02-20lib: uuid: support more efi protocols in uuid_guid_get_str()Vincent Stehlé
Add more EFI protocols GUIDs to the translation table used by uuid_guid_get_str(). Signed-off-by: Vincent Stehlé <vincent.stehle@arm.com> Cc: Tom Rini <trini@konsulko.com>
2024-12-04lib: uuid: display HTTP and IPV4 Config II protocolsHeinrich Schuchardt
Add long texts for * EFI HTTP Protocol * EFI HTTP Service Binding Protocol * EFI IPv4 Configuration II Protocol to the uuid library. Signed-off-by: Adriano Cordova <adrianox@gmail.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2024-11-13lib: uuid: fix uuid_str_to_bin() on 32-bitHeinrich Schuchardt
hextoul() cannot convert a string to a 64-bit number on a 32-bit system. Use function hextoull() instead. Reported-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Fixes: 22c48a92cdce ("lib: uuid: supporting building as part of host tools") Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Tested-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2024-11-13lib: uuid: fix uuid_str_to_le_bin() on 32-bitHeinrich Schuchardt
hextoul() cannot convert a string to a 64-bit number on a 32-bit system. Use function hextoull() instead. Reported-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Fixes: 22c48a92cdce ("lib: uuid: supporting building as part of host tools") Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org> Tested-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2024-10-11global: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILDSimon Glass
Complete this rename for all directories outside arch/ board/ drivers/ and include/ Use the new symbol to refer to any 'SPL' build, including TPL and VPL Signed-off-by: Simon Glass <sjg@chromium.org>
2024-09-12include: export uuid.hCaleb Connolly
Move this header to include/u-boot/ so that it can be used by external tools. Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
2024-09-12lib: uuid: supporting building as part of host toolsCaleb Connolly
Adjust the UUID library code so that it can be compiled as part of a host tool. This removes the one redundant log_debug() call, as well as the incorrectly defined LOG_CATEGORY. In general this is a fairly trivial change, just adjusting includes and disabling list_guid. This will be used by a new genguid tool to generate v5 GUIDs that match those generated by U-Boot at runtime. Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
2024-09-12lib: uuid: add UUID v5 supportCaleb Connolly
Add support for generating version 5 UUIDs, these are determistic and work by hashing a "namespace" UUID together with some unique data. One intended usecase is to allow for dynamically generate payload UUIDs for UEFI capsule updates, so that supported boards can have their own UUIDs without needing to hardcode them. In addition, move the common bit twiddling code from gen_ran_uuid into a separate function and rewrite it not to use clrsetbits (which is not available when building as part of host tools). Tests for this are added in an upcoming patch. Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
2024-05-05rng: Introduce SPL_DM_RNGMarek Vasut
Add SPL variant of DM_RNG so that the DM_RNG can be disabled in SPL if necessary. This may be necessary due to e.g. size constraints of the SPL. Signed-off-by: Marek Vasut <marex@denx.de>
2024-01-26lib: support SMBIOS3 table in uuid_guid_get_str()Heinrich Schuchardt
As we support installing SMBIOS3 tables in U-Boot we need to add this GUID to the translation table used buy uuid_guid_get_str(). Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
2023-12-21lib: Remove <common.h> inclusion from these filesTom Rini
After some header file cleanups to add missing include files, remove common.h from all files in the lib directory. This primarily means just dropping the line but in a few cases we need to add in other header files now. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2023-08-25uuid: Add ChromiumOS partition typesSimon Glass
Add some GUIDs for ChromiumOS so we can detect the partitions. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-25uuid: Move function comments to header fileSimon Glass
These should be in the header file for easy browsing, not in the source code. Move them and add a missing Return on one of the functions. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-08-08lib: uuid: introduce uuid_str_to_le_bin functionAbdellatif El Khlifi
convert UUID string to little endian binary data Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> Cc: Jens Wiklander <jens.wiklander@linaro.org>
2023-07-24Revert "Merge branch '2023-07-24-introduce-FF-A-suppport'"Tom Rini
This reverts commit d927d1a80843e1c3e2a3f0b8f6150790bef83da1, reversing changes made to c07ad9520c6190070513016fdb495d4703a4a853. These changes do not pass CI currently. Signed-off-by: Tom Rini <trini@konsulko.com>
2023-07-24lib: uuid: introduce uuid_str_to_le_bin functionAbdellatif El Khlifi
convert UUID string to little endian binary data Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> Cc: Jens Wiklander <jens.wiklander@linaro.org>
2023-07-17efi: Show all known UUIDs with CONFIG_CMD_EFIDEBUGSimon Glass
The CMD_EFIDEBUG option enables debugging so it is reasonable to assume that all effects should be made to decode the dreaded UUIDs favoured by UEFI. Update the table to show them all when CONFIG_CMD_EFIDEBUG is enabled. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2023-03-25efi: Include GUID names with EFI app and payloadSimon Glass
These are currently only available when running with EFI_LOADER. Expand this to include the app and payload, since it is useful to be able to decode things there. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-03-25efi: Add another tranch of GUIDsSimon Glass
Provide information about the GUIDs supplied by QEMU, so far as it is known. These values are used in the 'efi table' command as well as the printf format string %sU Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-03efi: Create ECPT tableJose Marinho
The ECPT table will be included in the UEFI specification 2.9+. The ECPT table was introduced in UEFI following the code-first path. The acceptance ticket can be viewed at: https://bugzilla.tianocore.org/show_bug.cgi?id=3591 The Conformance Profiles table is a UEFI configuration table that contains GUID of the UEFI profiles that the UEFI implementation conforms with. The ECPT table is created when CONFIG_EFI_ECPT=y. The config is set by default. Signed-off-by: Jose Marinho <jose.marinho@arm.com> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-29lib: allow printing RISC-V EFI Boot Protocol GUIDHeinrich Schuchardt
On RISC-V a new UEFI protocol has been introduced. Support printing its GUID using %pUs. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-19efi_loader: printing TCG2 protocol GUIDHeinrich Schuchardt
We support the TCG2 protocol. Allow command efidebug to print it. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-19cmd: printenv: simplify printing GUIDsHeinrich Schuchardt
Use "%pS" to print text representations of GUIDs. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-19cmd: efidebug: simplify printing GUIDsHeinrich Schuchardt
Use "%pS" to print text representations of GUIDs. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-19lib: compile uuid_guid_get_str if CONFIG_LIB_UUID=yHeinrich Schuchardt
Currently uuid_guid_get_str() is only built if CONFIG_PARTITION_TYPE_GUID=y. To make it usable for other GUIDs compile it if CONFIG_LIB_UUID=y. The linker will take care of removing it if it is unused. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2021-10-26lib: uuid: fix the test on RNG device presencePatrick Delaunay
Correct the test on RNG device presence,when ret is equal to 0, before to call dm_rng_read function. Without this patch the RNG device is not used when present (when ret == 0) or a data abort occurs in dm_rng_read when CONFIG_DM_RNG is activated but the RNG device is not present in device tree (ret != 0 and devp = NULL). Fixes: 92fdad28cfdf ("lib: uuid: use RNG device if present") CC: Matthias Brugger <mbrugger@suse.com> CC: Torsten Duwe <duwe@suse.de> Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-08-02global: Convert simple_strtoul() with hex to hextoul()Simon Glass
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>
2021-01-19lib: uuid: use RNG device if presentMatthias Brugger
When calculating a random UUID we use a weak seed. Use a RNG device if present to increase entropy. Signed-off-by: Matthias Brugger <mbrugger@suse.com> Reviewed-by: Torsten Duwe <duwe@suse.de>
2021-01-16doc/README.gpt: define partition type GUID for U-Boot environmentRasmus Villemoes
When setting aside a GPT partition for holding the U-Boot environment, having a partition type GUID [1] indicating "Linux filesystem" (as most tools default to) is somewhat misleading - and there's no other well-known type GUID that is better suited. So to have a canonical value to put into the type field, define 3de21764-95bd-54bd-a5c3-4abe786f38a8 to mean a partition holding a U-Boot environment. This is a v5 namespace-name GUID [2], generated [3] from a namespace of "25cbcde0-8642-47c6-a298-1a3a57cd256b" and name "U-Boot environment". Should future type GUIDs be defined in the context of U-Boot, it's sensible to use that same namespace GUID. [1] https://en.wikipedia.org/wiki/GUID_Partition_Table#Partition_type_GUIDs [2] https://en.wikipedia.org/wiki/Universally_unique_identifier#Versions_3_and_5_(namespace_name-based) [3] https://www.uuidtools.com/v5 Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-01-16lib/uuid.c: change prototype of uuid_guid_get_str()Rasmus Villemoes
There's no reason to require an appropriately sized output parameter for the string, that's error-prone should the table ever grow an element with a longer string. We can just return the const char* pointer directly. Update the only caller accordingly, and get rid of pointless ifdeffery in the header so that the compiler always sees a declaration and can thus do type-checking, whether or not PARTITION_TYPE_GUID is enabled or not. Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2020-05-18command: Remove the cmd_tbl_t typedefSimon Glass
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>
2020-05-18common: Drop net.h from common headerSimon Glass
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>
2020-05-18common: Drop uuid.h from common headerSimon Glass
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-04-24uuid: Use const char * where possibleSimon Glass
Update the arguments of these functions so they can be called from code which uses constant strings. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-12-02common: Move get_ticks() function out of common.hSimon Glass
This function belongs in time.h so move it over and add a comment. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-08-11env: Move env_set() to env.hSimon Glass
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>
2019-07-29lib: uuid: alignment error in gen_rand_uuid()Heinrich Schuchardt
Packed structures like struct uuid are not aligned. GCC 9.1 therefore throws an error when trying to compile gen_rand_uuid(). lib/uuid.c: In function ‘gen_rand_uuid’: lib/uuid.c:244:2: error: converting a packed ‘struct uuid’ pointer (alignment 1) to a ‘unsigned int’ pointer (alignment 4) may result in an unaligned pointer value [-Werror=address-of-packed-member] 244 | unsigned int *ptr = (unsigned int *)&uuid; | ^~~~~~~~ Generate the uuid in a properly aligned buffer. The byte order of a random number should not matter. Do not call cpu_to_be32() to change the byte order. Reported-by: Ramon Fried <rfried.dev@gmail.com> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-06-07lib/vsprintf: allow printing upper case GUIDsHeinrich Schuchardt
In the UEFI context GUIDs are expected to be rendered in upper case. The patch uses the formerly unused bit 1 of the parameter str_format of function uuid_bin_to_str() to indicate if we need upper or lower case output. Function uuid_string() in vsprint.c is adjusted to correctly set the bit depending on the print format code. %pUb: 01020304-0506-0708-090a-0b0c0d0e0f10 %pUB: 01020304-0506-0708-090A-0B0C0D0E0F10 %pUl: 04030201-0605-0807-090a-0b0c0d0e0f10 %pUL: 04030201-0605-0807-090A-0B0C0D0E0F10 Up to this point only a diagnostic message in mount_ubifs() using '%pUB' is concerned by the change. Further patches are needed to adjust the UEFI subsystem. A unit test is provided inside the ut_print command. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-02lib: uuid: Fix unseeded PRNG on RANDOM_UUID=yEugeniu Rosca
The random uuid values (enabled via CONFIG_RANDOM_UUID=y) on our platform are always the same. Below is consistent on each cold boot: => ### interrupt autoboot => env default -a; gpt write mmc 1 $partitions; print uuid_gpt_misc ... uuid_gpt_misc=d117f98e-6f2c-d04b-a5b2-331a19f91cb2 => env default -a; gpt write mmc 1 $partitions; print uuid_gpt_misc ... uuid_gpt_misc=ad5ec4b6-2d9f-8544-9417-fe3bd1c9b1b3 => env default -a; gpt write mmc 1 $partitions; print uuid_gpt_misc ... uuid_gpt_misc=cceb0b18-39cb-d547-9db7-03b405fa77d4 => env default -a; gpt write mmc 1 $partitions; print uuid_gpt_misc ... uuid_gpt_misc=d4981a2b-0478-544e-9607-7fd3c651068d => env default -a; gpt write mmc 1 $partitions; print uuid_gpt_misc ... uuid_gpt_misc=6d6c9a36-e919-264d-a9ee-bd00379686c7 While the uuids do change on every 'gpt write' command, the values appear to be taken from the same pool, in the same order. Assuming U-Boot with RANDOM_UUID=y is deployed on a large number of devices, all those devices would essentially expose the same UUID, breaking the assumption of system/RFS/application designers who rely on UUID as being globally unique (e.g. a database using UUID as key would alias/mix up entries/records due to duplicated UUID). The root cause seems to be simply _not_ seeding PRNG before generating a random value. It turns out this belongs to an established class of PRNG-specific problems, commonly known as "unseeded randomness", for which I am able to find below bugs/CVE/CWE: - https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-0285 ("CVE-2015-0285 openssl: handshake with unseeded PRNG") - https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-9019 ("CVE-2015-9019 libxslt: math.random() in xslt uses unseeded randomness") - https://cwe.mitre.org/data/definitions/336.html ("CWE-336: Same Seed in Pseudo-Random Number Generator (PRNG)") The first revision [1] of this patch updated the seed based on the output of get_timer(), similar to [4]. There are two problems with this approach: - get_timer() has a poor _ms_ resolution - when gen_rand_uuid() is called in a loop, get_timer() returns the same result, leading to the same seed being passed to srand(), leading to the same uuid being generated for several partitions with different names The above drawbacks have been addressed in the second version [2]. In its third revision (current), the patch reworded the description and summary line to emphasize it is a *fix* rather than an improvement. Testing [3] consisted of running 'gpt write mmc 1 $partitions' in a loop on R-Car3 for several minutes, collecting 8844 randomly generated UUIDS. Two consecutive cold boots are concatenated in the log. As a result, all uuid values are unique (scripted check). Thanks to Roman, who reported the issue and provided support in fixing. [1] https://patchwork.ozlabs.org/patch/1091802/ [2] https://patchwork.ozlabs.org/patch/1092945/ [3] https://gist.github.com/erosca/2820be9d554f76b982edd48474d0e7ca [4] commit da384a9d7628 ("net: rename and refactor eth_rand_ethaddr() function") Reported-by: Roman Stratiienko <roman.stratiienko@globallogic.com> Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-01-15lib: uuid: Do not enable UUID command SPLMarek Vasut
The uuid command is only really useful in U-Boot, but it's useless in SPL. Worse yet, it pulls in various environment manipulation functions as it call env_set(). Do not compile the command in in SPL. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Tom Rini <trini@konsulko.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
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>
2017-08-16env: Rename setenv() to env_set()Simon Glass
We are now using an env_ prefix for environment functions. Rename setenv() for consistency. Also add function comments in common.h. Suggested-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
2015-11-12uuid: add selection by string for known partition type GUIDPatrick Delaunay
short strings can be used in type parameter of gpt command to replace the guid string for the types known by u-boot partitions = name=boot,size=0x6bc00,type=data; \ name=root,size=0x7538ba00,type=linux; gpt write mmc 0 $partitions and they are also used to display the type of partition in "part list" command Partition Map for MMC device 0 -- Partition Type: EFI Part Start LBA End LBA Name Attributes Type GUID Partition GUID 1 0x00000022 0x0000037f "boot" attrs: 0x0000000000000000 type: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7 type: data guid: d117f98e-6f2c-d04b-a5b2-331a19f91cb2 2 0x00000380 0x003a9fdc "root" attrs: 0x0000000000000000 type: 0fc63daf-8483-4772-8e79-3d69d8477de4 type: linux guid: 25718777-d0ad-7443-9e60-02cb591c9737 Signed-off-by: Patrick Delaunay <patrick.delaunay73@gmail.com>
2014-04-02cmd:gpt: randomly generate each partition uuid if undefinedPrzemyslaw Marczak
Changes: - randomly generate partition uuid if any is undefined and CONFIG_RAND_UUID is defined - print debug info about set/unset/generated uuid - update doc/README.gpt Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Cc: Piotr Wilczek <p.wilczek@samsung.com> Cc: Tom Rini <trini@ti.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com>
2014-04-02new commands: uuid and guid - generate random unique identifierPrzemyslaw Marczak
Those commands basis on implementation of random UUID generator version 4 which is described in RFC4122. The same algorithm is used for generation both ids but string representation is different as below. char: 0 9 14 19 24 36 xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: be be be be be GUID: le le le be be Commands usage: - uuid [<varname>] - guid [<varname>] The result is saved in environment as a "varname" variable if argument is given, if not then it is printed. New config: - CONFIG_CMD_UUID Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: trini@ti.com
2014-04-02lib: uuid: add functions to generate UUID version 4Przemyslaw Marczak
This patch adds support to generate UUID (Universally Unique Identifier) in version 4 based on RFC4122, which is randomly. Source: https://www.ietf.org/rfc/rfc4122.txt Changes: - new configs: - CONFIG_LIB_UUID for compile lib/uuid.c - CONFIG_RANDOM_UUID for functions gen_rand_uuid() and gen_rand_uuid_str() - add configs dependency to include/config_fallbacks.h for lib uuid. lib/uuid.c: - add gen_rand_uuid() - this function writes 16 bytes len binary representation of UUID v4 to the memory at given address. - add gen_rand_uuid_str() - this function writes 37 bytes len hexadecimal ASCII string representation of UUID v4 to the memory at given address. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com> [trini: Add CONFIG_EFI_PARTITION to fallbacks] Signed-off-by: Tom Rini <trini@ti.com>
2014-04-02lib: uuid: code refactor for proper maintain between uuid bin and stringPrzemyslaw Marczak
Changes in lib/uuid.c to: - uuid_str_to_bin() - uuid_bin_to_str() New parameter is added to specify input/output string format in listed functions This change allows easy recognize which UUID type is or should be stored in given string array. Binary data of UUID and GUID is always stored in big endian, only string representations are different as follows. String byte: 0 36 String char: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx string UUID: be be be be be string GUID: le le le be be This patch also updates functions calls and declarations in a whole code. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: trini@ti.com
2014-04-02part_efi: move uuid<->string conversion functions into lib/uuid.cPrzemyslaw Marczak
This commit introduces cleanup for uuid library. Changes: - move uuid<->string conversion functions into lib/uuid.c so they can be used by code outside part_efi.c. - rename uuid_string() to uuid_bin_to_str() for consistency with existing uuid_str_to_bin() - add an error return code to uuid_str_to_bin() - update existing code to the new library functions. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: trini@ti.com
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