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Document the use of the features_X and requires() functions

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Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Tyler Hicks <tyhicks@canonical.com>
This commit is contained in:
John Johansen
2017-09-07 17:29:09 -07:00
parent 031792c400
commit ec6faab94b
1 changed files with 21 additions and 0 deletions
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21
tests/regression/apparmor/prologue.inc
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@@ -23,6 +23,12 @@
#use $() to retreive the failure message or "true" if success #use $() to retreive the failure message or "true" if success
# kernel_features_istrue() - test whether boolean files are true
# $@: path(s) to test if true
# Returns: 0 and "true" if all specified paths exist and are true
# 1 and error message if features directory is not available
# 2 and error message if feature file does not exist
# 3 and error message if feature path is not a file
kernel_features_istrue() kernel_features_istrue()
{ {
if [ ! -e "/sys/kernel/security/apparmor/features/" ] ; then if [ ! -e "/sys/kernel/security/apparmor/features/" ] ; then
@@ -46,6 +52,11 @@ kernel_features_istrue()
return 0; return 0;
} }
# kernel_features - test whether path(s) are present
# $@: feature path(s) to test
# Returns: 0 and outputs "true" if all paths exist
# 1 and error message if features dir is not available
# 2 and error message if path does not exist
kernel_features() kernel_features()
{ {
if [ ! -e "/sys/kernel/security/apparmor/features/" ] ; then if [ ! -e "/sys/kernel/security/apparmor/features/" ] ; then
@@ -64,6 +75,8 @@ kernel_features()
return 0; return 0;
} }
# requires_kernel_features() - exit if kernel feature does not exist
# $@: feature path(s) to test
requires_kernel_features() requires_kernel_features()
{ {
local res=$(kernel_features $@) local res=$(kernel_features $@)
@@ -73,6 +86,7 @@ requires_kernel_features()
fi fi
} }
# requires_namespace_interface() - exit if namespace interface is not available
requires_namespace_interface() requires_namespace_interface()
{ {
if [ ! -e "/sys/kernel/security/apparmor/policy/namespaces" ] if [ ! -e "/sys/kernel/security/apparmor/policy/namespaces" ]
@@ -82,6 +96,7 @@ requires_namespace_interface()
fi fi
} }
# requires_query_interface() - exit if the query interface is not available
requires_query_interface() requires_query_interface()
{ {
if [ ! -e "/sys/kernel/security/apparmor/.access" ] if [ ! -e "/sys/kernel/security/apparmor/.access" ]
@@ -91,6 +106,10 @@ requires_query_interface()
fi fi
} }
# parser_supports() - test if the parser supports the following rules
# $@: rules to test, use quotes if the rule contains whitespace
# Returns: 0 and output "true" if all rules supported
# 1 and error message if compiler does not support rule
parser_supports() parser_supports()
{ {
for R in "$@" ; do for R in "$@" ; do
@@ -105,6 +124,8 @@ parser_supports()
return 0; return 0;
} }
#requires_parser_support() - exit if the parser does not support the rules
# $@: rules to test
requires_parser_support() requires_parser_support()
{ {
local res=$(parser_supports $@) local res=$(parser_supports $@)