13 Nov, 2015

1 commit

  • 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 Delaunay
     

03 Apr, 2014

2 commits

  • 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
    Cc: Stephen Warren
    Cc: Lukasz Majewski
    [trini: Add CONFIG_EFI_PARTITION to fallbacks]
    Signed-off-by: Tom Rini

    Przemyslaw 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
    Cc: Stephen Warren
    Cc: Lukasz Majewski
    Cc: trini@ti.com

    Przemyslaw Marczak