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authorHavoc Pennington <hp@redhat.com>2003-10-14 22:16:03 +0000
committerHavoc Pennington <hp@redhat.com>2003-10-14 22:16:03 +0000
commit3251264ac483680b4a5fe808729f7e3b34f41fd4 (patch)
tree0b2a953be7b1a858c5759158e834de3d2d1b763e /bus/policy.c
parentb704a068a92c00b50e7d5f33ef6c8e1c3a87ceae (diff)
2003-10-14 Havoc Pennington <hp@redhat.com>
* bus/bus.c (bus_context_check_security_policy): revamp this to work more sanely with new policy-based requested reply setup * bus/connection.c (bus_transaction_send_from_driver): set bus driver messages as no reply * bus/policy.c (bus_client_policy_check_can_receive): handle a requested_reply attribute on allow/deny rules * bus/system.conf: add <allow requested_reply="true"/> * bus/driver.c (bus_driver_handle_message): fix check for replies sent to the bus driver, which was backward. How did this ever work at all though? I think I'm missing something. * dbus/dbus-message.c (decode_header_data): require error and method return messages to have a reply serial field to be valid (_dbus_message_loader_queue_messages): break up this function; validate that reply serial and plain serial are nonzero; clean up the OOM/error handling. (get_uint_field): don't return -1 from this (dbus_message_create_header): fix signed/unsigned bug * bus/connection.c (bus_connections_expect_reply): save serial of the incoming message, not reply serial
Diffstat (limited to 'bus/policy.c')
-rw-r--r--bus/policy.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/bus/policy.c b/bus/policy.c
index 71137ca9..63131aca 100644
--- a/bus/policy.c
+++ b/bus/policy.c
@@ -56,6 +56,10 @@ bus_policy_rule_new (BusPolicyRuleType type,
break;
case BUS_POLICY_RULE_RECEIVE:
rule->d.receive.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.receive.requested_reply = rule->allow;
break;
case BUS_POLICY_RULE_OWN:
break;
@@ -919,6 +923,7 @@ bus_client_policy_check_can_send (BusClientPolicy *policy,
dbus_bool_t
bus_client_policy_check_can_receive (BusClientPolicy *policy,
BusRegistry *registry,
+ dbus_bool_t requested_reply,
DBusConnection *sender,
DBusConnection *addressed_recipient,
DBusConnection *proposed_recipient,
@@ -978,6 +983,30 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy,
_dbus_verbose (" (policy) skipping deny rule since it only applies to eavesdropping\n");
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.receive.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.receive.requested_reply)
+ {
+ _dbus_verbose (" (policy) skipping deny rule since it only applies to unrequested replies\n");
+ continue;
+ }
+ }
if (rule->d.receive.path != NULL)
{