init: add "+passcred" for socket to set SO_PASSCRED
In the init scripts for socket, the type can have a suffix of
"+passcred" to request that the socket be bound to report SO_PASSCRED
credentials as part of socket transactions.
Test: gTest logd-unit-tests --gtest_filter=logd.statistics right after boot
(fails without logd.rc change)
Bug: 37985222
Change-Id: Ie5b50e99fb92fa9bec9a32463a0e6df26a968bfd
diff --git a/init/descriptors.cpp b/init/descriptors.cpp
index b2142ca..6f729a3 100644
--- a/init/descriptors.cpp
+++ b/init/descriptors.cpp
@@ -23,6 +23,7 @@
#include <android-base/logging.h>
#include <android-base/stringprintf.h>
+#include <android-base/strings.h>
#include <android-base/unique_fd.h>
#include <cutils/android_get_control_file.h>
#include <cutils/sockets.h>
@@ -77,10 +78,12 @@
}
int SocketInfo::Create(const std::string& context) const {
- int flags = ((type() == "stream" ? SOCK_STREAM :
- (type() == "dgram" ? SOCK_DGRAM :
- SOCK_SEQPACKET)));
- return create_socket(name().c_str(), flags, perm(), uid(), gid(), context.c_str(), sehandle);
+ auto types = android::base::Split(type(), "+");
+ int flags =
+ ((types[0] == "stream" ? SOCK_STREAM : (types[0] == "dgram" ? SOCK_DGRAM : SOCK_SEQPACKET)));
+ bool passcred = types.size() > 1 && types[1] == "passcred";
+ return CreateSocket(name().c_str(), flags, passcred, perm(), uid(), gid(), context.c_str(),
+ sehandle);
}
const std::string SocketInfo::key() const {