From 28ef4002ec7b4be27f1110b83e255df8159c786a Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Tue, 20 Apr 2010 10:21:18 -0400
Subject: [PATCH] IMA: handle whitespace better
IMA parser will fail if whitespace is used in any way other than a single
space. Using a tab or even using 2 spaces in a row will result in a policy
being rejected. This patch makes the kernel ignore whitespace a bit better.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
security/integrity/ima/ima_policy.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index dee2dc062bcc..1bc9e31ae250 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -265,15 +265,15 @@ static int ima_parse_rule(char *rule, struct ima_measure_rule_entry *entry)
entry->uid = -1;
entry->action = UNKNOWN;
- while ((p = strsep(&rule, " ")) != NULL) {
+ while ((p = strsep(&rule, " \t")) != NULL) {
substring_t args[MAX_OPT_ARGS];
int token;
unsigned long lnum;
if (result < 0)
break;
- if (!*p)
- break;
+ if ((*p == '\0') || (*p == ' ') || (*p == '\t'))
+ continue;
token = match_token(p, policy_tokens, args);
switch (token) {
case Opt_measure:
--
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