Allow AID_RADIO to restart the ril-daemon.

This enhances robustness by allowing the Telephony Framework to restart
ril-daemon if it notices some catastrophic failure.

Added setprop ctl.restart.
Added ril-daemon to setprop control_perms and allow users/groups
with the AID_RADIO ID to control it.

Change-Id: I195abdd754a731ce0b77e8f71ab47fde8c3e7977

2 files changed, 6 insertions, 2 deletions

diff --git a/init/init.c b/init/init.c
index 709cc40..cd129c3 100755
--- a/init/init.c
+++ b/init/init.c
@@ -384,6 +384,9 @@ void handle_control_message(const char *msg, const char *arg)
         msg_start(arg);
     } else if (!strcmp(msg,"stop")) {
         msg_stop(arg);
+    } else if (!strcmp(msg,"restart")) {
+        msg_stop(arg);
+        msg_start(arg);
     } else {
         ERROR("unknown control msg '%s'\n", msg);
     }
diff --git a/init/property_service.c b/init/property_service.c
index d8fea56..788252b 100644
--- a/init/property_service.c
+++ b/init/property_service.c
@@ -95,6 +95,7 @@ struct {
     unsigned int gid;
 } control_perms[] = {
     { "dumpstate",AID_SHELL, AID_LOG },
+    { "ril-daemon",AID_RADIO, AID_RADIO },
      {NULL, 0, 0 }
 };
 
@@ -397,8 +398,8 @@ void handle_property_set_fd()
             if (check_control_perms(msg.value, cr.uid, cr.gid)) {
                 handle_control_message((char*) msg.name + 4, (char*) msg.value);
             } else {
-                ERROR("sys_prop: Unable to %s service ctl [%s] uid: %d pid:%d\n",
-                        msg.name + 4, msg.value, cr.uid, cr.pid);
+                ERROR("sys_prop: Unable to %s service ctl [%s] uid:%d gid:%d pid:%d\n",
+                        msg.name + 4, msg.value, cr.uid, cr.gid, cr.pid);
             }
         } else {
             if (check_perms(msg.name, cr.uid, cr.gid)) {