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Merge \\\"ueventd: only relabel devices if there\\\'s a delta\\\" am: 95428817d6 am: 807fa4bd5c

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am: 787468260d

Change-Id: I6becb7e8ef42a069f5daed0e7c332d6c2cd3b8c6
This commit is contained in:
William Roberts 2016-06-09 19:21:53 +00:00 • committed by android-build-merger
commit 487d7f3be3
1 changed files with 15 additions and 1 deletions
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16
init/devices.cpp
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@ -257,11 +257,25 @@ static void make_device(const char *path,
/* If the node already exists update its SELinux label to handle cases when
* it was created with the wrong context during coldboot procedure. */
if (mknod(path, mode, dev) && (errno == EEXIST)) {
if (lsetfilecon(path, secontext)) {
char* fcon = nullptr;
int rc = lgetfilecon(path, &fcon);
if (rc < 0) {
ERROR("Cannot get SELinux label on '%s' device (%s)\n",
path, strerror(errno));
goto out;
}
bool different = strcmp(fcon, secontext) != 0;
freecon(fcon);
if (different && lsetfilecon(path, secontext)) {
ERROR("Cannot set '%s' SELinux label on '%s' device (%s)\n",
secontext, path, strerror(errno));
}
}
out:
chown(path, uid, -1);
setegid(AID_ROOT);