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authorRoberto Sassu <roberto.sassu@huawei.com>2019-05-29 15:30:35 +0200
committerMimi Zohar <zohar@linux.ibm.com>2019-05-29 23:18:25 -0400
commit8cdc23a3d9ec0944000ad43bad588e36afdc38cd (patch)
treee36e1d077ed05831ab7de39f82eaead5214e2290 /security/integrity
parent221be106d75c1b511973301542f47d6000d0b63e (diff)
downloadlinux-8cdc23a3d9ec0944000ad43bad588e36afdc38cd.tar.bz2
ima: show rules with IMA_INMASK correctly
Show the '^' character when a policy rule has flag IMA_INMASK. Fixes: 80eae209d63ac ("IMA: allow reading back the current IMA policy") Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Cc: stable@vger.kernel.org Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'security/integrity')
-rw-r--r--security/integrity/ima/ima_policy.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 0f6fe53cef09..1cc822a59054 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -1147,10 +1147,10 @@ enum {
};
static const char *const mask_tokens[] = {
- "MAY_EXEC",
- "MAY_WRITE",
- "MAY_READ",
- "MAY_APPEND"
+ "^MAY_EXEC",
+ "^MAY_WRITE",
+ "^MAY_READ",
+ "^MAY_APPEND"
};
#define __ima_hook_stringify(str) (#str),
@@ -1210,6 +1210,7 @@ int ima_policy_show(struct seq_file *m, void *v)
struct ima_rule_entry *entry = v;
int i;
char tbuf[64] = {0,};
+ int offset = 0;
rcu_read_lock();
@@ -1233,15 +1234,17 @@ int ima_policy_show(struct seq_file *m, void *v)
if (entry->flags & IMA_FUNC)
policy_func_show(m, entry->func);
- if (entry->flags & IMA_MASK) {
+ if ((entry->flags & IMA_MASK) || (entry->flags & IMA_INMASK)) {
+ if (entry->flags & IMA_MASK)
+ offset = 1;
if (entry->mask & MAY_EXEC)
- seq_printf(m, pt(Opt_mask), mt(mask_exec));
+ seq_printf(m, pt(Opt_mask), mt(mask_exec) + offset);
if (entry->mask & MAY_WRITE)
- seq_printf(m, pt(Opt_mask), mt(mask_write));
+ seq_printf(m, pt(Opt_mask), mt(mask_write) + offset);
if (entry->mask & MAY_READ)
- seq_printf(m, pt(Opt_mask), mt(mask_read));
+ seq_printf(m, pt(Opt_mask), mt(mask_read) + offset);
if (entry->mask & MAY_APPEND)
- seq_printf(m, pt(Opt_mask), mt(mask_append));
+ seq_printf(m, pt(Opt_mask), mt(mask_append) + offset);
seq_puts(m, " ");
}