2 files changed, 0 insertions, 71 deletions
diff --git a/libcutils/Android.mk b/libcutils/Android.mk
index 1951c1d..3dc3d69 100644
--- a/libcutils/Android.mk
+++ b/libcutils/Android.mk
@@ -74,7 +74,6 @@ else
         mspace.c \
         selector.c \
         tztime.c \
-        uevent.c \
         zygote.c
 
     commonHostSources += \
diff --git a/libcutils/uevent.c b/libcutils/uevent.c
deleted file mode 100644
index 3533c00..0000000
--- a/libcutils/uevent.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <cutils/uevent.h>
-
-#include <errno.h>
-#include <strings.h>
-
-#include <linux/netlink.h>
-
-/**
- * Like recv(), but checks that messages actually originate from the kernel.
- */
-ssize_t uevent_checked_recv(int socket, void *buffer, size_t length) {
-    struct iovec iov = { buffer, length };
-    struct sockaddr_nl addr;
-    char control[CMSG_SPACE(sizeof(struct ucred))];
-    struct msghdr hdr = {
-        &addr,
-        sizeof(addr),
-        &iov,
-        1,
-        control,
-        sizeof(control),
-        0,
-    };
-
-    ssize_t n = recvmsg(socket, &hdr, 0);
-    if (n <= 0) {
-        return n;
-    }
-
-    if (addr.nl_groups == 0 || addr.nl_pid != 0) {
-        /* ignoring non-kernel or unicast netlink message */
-        goto out;
-    }
-
-    struct cmsghdr *cmsg = CMSG_FIRSTHDR(&hdr);
-    if (cmsg == NULL || cmsg->cmsg_type != SCM_CREDENTIALS) {
-        /* ignoring netlink message with no sender credentials */
-        goto out;
-    }
-
-    struct ucred *cred = (struct ucred *)CMSG_DATA(cmsg);
-    if (cred->uid != 0) {
-        /* ignoring netlink message from non-root user */
-        goto out;
-    }
-
-    return n;
-
-out:
-    /* clear residual potentially malicious data */
-    bzero(buffer, length);
-    errno = EIO;
-    return -1;
-}