[U-Boot] [PATCH 0/12] Add environment type checking and access control

17 Aug 2012


      Enable validation of the values given to enviroment variables when
calling env set.  Variables can be restricted to only decimal,
hexadecimal, or boolean.  If CONFIG_CMD_NET is also defined,
the variables can also be restricted to IP address or MAC address.
The format of the list is:
        type_attribute = [s|d|x|b|i|m]
        access_atribute = [a|r|o]
        attributes = type_attribute[access_atribute]
        entry = variable_name[:attributes]
        list = entry[,list]
The type attributes are:
        s - String (default)
        d - Decimal
        x - Hexadecimal
        b - Boolean
        i - IP address
        m - MAC address
The access attributes are:
        a - Any (default)
        r - Read-only
        o - Write-once (change default)
- CONFIG_ENV_ACL_DEFAULT
        Define this to a list (string) to define the "acl" envirnoment
        variable in the default or embedded environment.
- CONFIG_ENV_ACL_STATIC
        Define this to a list (string) to define validation that
        should be done if an entry is not found in the "acl"
        environment variable.  To override a setting in the static
        list, simply add an entry for the same variable name to the
        "acl" variable.
Joe Hershberger (12):
  tools/env: Use a board-specific default env
  tools/env: Remove unneeded complexity
  tools/env: Don't call env_init() in fw_getenv()
  tools/env: Reduce the impact on real-time processes
  tools/env: Serialize calls to fw_*env
  env: Make the "silent" env var take effect immediately
  env: Update serial baudrate in env_relocate()
  env: Check for NULL pointer in envmatch()
  env: Clarify the cases for env set
  env: acl: Add environment variable access control list
  env: acl: Add support for access control to env ACL
  env: cosmetic: Consilidate the default env definition
README                  |  42 +++++++
 common/Makefile         |   1 +
 common/cmd_nvedit.c     | 171 ++++++++++++++++++++-------
 common/env_acl.c        | 308 ++++++++++++++++++++++++++++++++++++++++++++++++
 common/env_common.c     | 123 +++++--------------
 common/env_embedded.c   | 111 +----------------
 doc/README.silent       |  14 ++-
 include/env_acl.h       |  63 ++++++++++
 include/env_default.h   | 142 ++++++++++++++++++++++
 tools/env/Makefile      |   7 +-
 tools/env/fw_env.c      | 305 ++++++++++++++++++++++++-----------------------
 tools/env/fw_env.h      |  25 ++++
 tools/env/fw_env_main.c |  59 ++++++----
 13 files changed, 943 insertions(+), 428 deletions(-)
 create mode 100644 common/env_acl.c
 create mode 100644 include/env_acl.h
 create mode 100644 include/env_default.h
-- 
1.7.11.5