lmkd: Prepare lmkd to support connection from init process
In order to register native services init needs ability to communicate with
lmkd. Make liblmkd_utils library available in recovery mode so that init
can link to it and add a data socket in lmkd to support additional
connection from init. Ensure SOCK_CLOEXEC type for lmkd socket to prevent
init children from inheriting it.
Bug: 129011369
Test: boot and verify native service registration
Change-Id: Iaa4f59282fb10f838f6811571e97d55754b1bd41
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
diff --git a/lmkd/lmkd.c b/lmkd/lmkd.c
index e7a23ef..1edd772 100644
--- a/lmkd/lmkd.c
+++ b/lmkd/lmkd.c
@@ -245,8 +245,8 @@
struct event_handler_info handler_info;
};
-/* max supported number of data connections */
-#define MAX_DATA_CONN 2
+/* max supported number of data connections (AMS, init, tests) */
+#define MAX_DATA_CONN 3
/* socket event handler data */
static struct sock_event_handler_info ctrl_sock;
@@ -256,7 +256,7 @@
static struct event_handler_info vmpressure_hinfo[VMPRESS_LEVEL_COUNT];
/*
- * 1 ctrl listen socket, 2 ctrl data socket, 3 memory pressure levels,
+ * 1 ctrl listen socket, 3 ctrl data socket, 3 memory pressure levels,
* 1 lmk events + 1 fd to wait for process death
*/
#define MAX_EPOLL_EVENTS (1 + MAX_DATA_CONN + VMPRESS_LEVEL_COUNT + 1 + 1)