env: Add support for access control to .flags
Add support for read-only, write-once, and change-default.
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/README b/README
index 08c0fcc..b5c1c03 100644
--- a/README
+++ b/README
@@ -3128,7 +3128,8 @@
The format of the list is:
type_attribute = [s|d|x|b|i|m]
- attributes = type_attribute
+ access_atribute = [a|r|o|c]
+ attributes = type_attribute[access_atribute]
entry = variable_name[:attributes]
list = entry[,list]
@@ -3140,6 +3141,12 @@
i - IP address
m - MAC address
+ The access attributes are:
+ a - Any (default)
+ r - Read-only
+ o - Write-once
+ c - Change-default
+
- CONFIG_ENV_FLAGS_LIST_DEFAULT
Define this to a list (string) to define the ".flags"
envirnoment variable in the default or embedded environment.
@@ -3151,6 +3158,10 @@
list, simply add an entry for the same variable name to the
".flags" variable.
+- CONFIG_ENV_ACCESS_IGNORE_FORCE
+ If defined, don't allow the -f switch to env set override variable
+ access flags.
+
The following definitions that deal with the placement and management
of environment data (variable area); in general, we support the
following configurations: