Parser does not parse empty MOUNT body, i.e. mount {}. Can be generated by
cgsnapshot with no cgroup mounted.
Adding new rule into parser.y resolves this problem.
Tested for cgconfig.conf containing mount{}.
Signed-off-by: Jan Chaloupka<[email protected]>
---
libcgroup-0.41/src/parse.y | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/libcgroup-0.41/src/parse.y b/libcgroup-0.41/src/parse.y
index 9adbc0e..0e2b834 100644
--- a/libcgroup-0.41/src/parse.y
+++ b/libcgroup-0.41/src/parse.y
@@ -46,7 +46,7 @@ int yywrap(void)
struct cgroup_dictionary *values;
}
%type <name> ID
-%type <val> mountvalue_conf mount task_namevalue_conf admin_namevalue_conf
+%type <val> mountvalue_conf mount mount_body task_namevalue_conf
admin_namevalue_conf
%type <val> admin_conf task_conf task_or_admin group_conf group start
%type <val> namespace namespace_conf default default_conf
%type <values> namevalue_conf
@@ -454,9 +454,20 @@ mountvalue_conf
}
;
-mount : MOUNT '{' mountvalue_conf '}'
+mount : MOUNT '{' mount_body
+ {
+ $$ = $3;
+ }
+ ;
+
+mount_body
+ : '}'
+ {
+ $$ = 1; /* empty section */
+ }
+ | mountvalue_conf '}'
{
- $$ = $3;
+ $$ = $1;
if (!$$) {
fprintf(stderr, "parsing failed at line number %d\n",
line_no);
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