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-rw-r--r--bus/policy.c32
1 files changed, 31 insertions, 1 deletions
diff --git a/bus/policy.c b/bus/policy.c
index ed58a959..3c7bba9b 100644
--- a/bus/policy.c
+++ b/bus/policy.c
@@ -1,7 +1,7 @@
/* -*- mode: C; c-file-style: "gnu" -*- */
/* policy.c Bus security policy
*
- * Copyright (C) 2003 Red Hat, Inc.
+ * Copyright (C) 2003, 2004 Red Hat, Inc.
*
* Licensed under the Academic Free License version 2.0
*
@@ -53,6 +53,11 @@ bus_policy_rule_new (BusPolicyRuleType type,
break;
case BUS_POLICY_RULE_SEND:
rule->d.send.message_type = DBUS_MESSAGE_TYPE_INVALID;
+
+ /* allow rules default to TRUE (only requested replies allowed)
+ * deny rules default to FALSE (only unrequested replies denied)
+ */
+ rule->d.send.requested_reply = rule->allow;
break;
case BUS_POLICY_RULE_RECEIVE:
rule->d.receive.message_type = DBUS_MESSAGE_TYPE_INVALID;
@@ -788,6 +793,7 @@ bus_client_policy_append_rule (BusClientPolicy *policy,
dbus_bool_t
bus_client_policy_check_can_send (BusClientPolicy *policy,
BusRegistry *registry,
+ dbus_bool_t requested_reply,
DBusConnection *receiver,
DBusMessage *message)
{
@@ -827,6 +833,30 @@ bus_client_policy_check_can_send (BusClientPolicy *policy,
continue;
}
}
+
+ /* If it's a reply, the requested_reply flag kicks in */
+ if (dbus_message_get_reply_serial (message) != 0)
+ {
+ /* for allow, requested_reply=true means the rule applies
+ * only when reply was requested. requested_reply=false means
+ * always allow.
+ */
+ if (!requested_reply && rule->allow && rule->d.send.requested_reply)
+ {
+ _dbus_verbose (" (policy) skipping allow rule since it only applies to requested replies\n");
+ continue;
+ }
+
+ /* for deny, requested_reply=false means the rule applies only
+ * when the reply was not requested. requested_reply=true means the
+ * rule always applies.
+ */
+ if (requested_reply && !rule->allow && !rule->d.send.requested_reply)
+ {
+ _dbus_verbose (" (policy) skipping deny rule since it only applies to unrequested replies\n");
+ continue;
+ }
+ }
if (rule->d.send.path != NULL)
{