commit f2cbefd2983da189e64993fca30d49dcc6cf2bf6
author Suren Baghdasaryan <surenb@google.com> Mon Oct 21 17:59:22 2019 -0700
committer Suren Baghdasaryan <surenb@google.com> Thu Nov 07 18:18:46 2019 +0000
tree a4876eafb40e20acb3838331447eaffaa77f14db
parent 945658abc4841d608be2c7446d1b9eecae5107ab

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>

liblmkd_utils.c

diff --git a/liblmkd_utils.c b/liblmkd_utils.c
index fa3b7a9..980cd35 100644
--- a/liblmkd_utils.c
+++ b/liblmkd_utils.c
@@ -28,7 +28,7 @@
 int lmkd_connect() {
     return socket_local_client("lmkd",
                                ANDROID_SOCKET_NAMESPACE_RESERVED,
-                               SOCK_SEQPACKET);
+                               SOCK_SEQPACKET | SOCK_CLOEXEC);
 }
 
 int lmkd_register_proc(int sock, struct lmk_procprio *params) {