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Improve robustness of policy matching

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The 'Session_policy' helper could not cope well with configurations that
contain nodes of a type other than '<policy>'. This patch improves the
policy matching by skipping non-policy nodes.
This commit is contained in:
Norman Feske 2012-05-17 19:00:04 +02:00
parent 293b3c80d2
commit f0fcf084d7
1 changed files with 8 additions and 3 deletions
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11
os/include/os/session_policy.h
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@ -54,8 +54,12 @@ namespace Genode {
int best_match = -1;
try {
unsigned label_len = 0;
Xml_node policy = config()->xml_node().sub_node("policy");
for (int i = 0;; i++, policy = policy.next("policy")) {
Xml_node policy = config()->xml_node().sub_node();
for (int i = 0;; i++, policy = policy.next()) {
if (!policy.has_type("policy"))
continue;
/* label attribtute from policy node */
char policy_label[LABEL_LEN];
@ -63,7 +67,8 @@ namespace Genode {
sizeof(policy_label));
if (!_label_matches(session_label, policy_label)
|| strlen(policy_label) < label_len) continue;
|| strlen(policy_label) < label_len)
continue;
label_len = strlen(policy_label);
best_match = i;