Get SID from kernel.
Bug: 121035042
Test: boot
Change-Id: I0941e5a13305859e1b913ec4451173e5408c808e
diff --git a/cmds/servicemanager/binder.c b/cmds/servicemanager/binder.c
index fade8cf..a2b4da2 100644
--- a/cmds/servicemanager/binder.c
+++ b/cmds/servicemanager/binder.c
@@ -146,7 +146,21 @@
int binder_become_context_manager(struct binder_state *bs)
{
- return ioctl(bs->fd, BINDER_SET_CONTEXT_MGR, 0);
+ struct flat_binder_object obj;
+ memset(&obj, 0, sizeof(obj));
+ obj.flags = FLAT_BINDER_FLAG_TXN_SECURITY_CTX;
+
+ int result = ioctl(bs->fd, BINDER_SET_CONTEXT_MGR_EXT, &obj);
+
+ // fallback to original method
+ if (result != 0) {
+#ifndef VENDORSERVICEMANAGER
+ android_errorWriteLog(0x534e4554, "121035042");
+#endif
+
+ result = ioctl(bs->fd, BINDER_SET_CONTEXT_MGR, 0);
+ }
+ return result;
}
int binder_write(struct binder_state *bs, void *data, size_t len)
@@ -240,13 +254,28 @@
#endif
ptr += sizeof(struct binder_ptr_cookie);
break;
+ case BR_TRANSACTION_SEC_CTX:
case BR_TRANSACTION: {
- struct binder_transaction_data *txn = (struct binder_transaction_data *) ptr;
- if ((end - ptr) < sizeof(*txn)) {
- ALOGE("parse: txn too small!\n");
- return -1;
+ struct binder_transaction_data_secctx txn;
+ if (cmd == BR_TRANSACTION_SEC_CTX) {
+ if ((end - ptr) < sizeof(struct binder_transaction_data_secctx)) {
+ ALOGE("parse: txn too small (binder_transaction_data_secctx)!\n");
+ return -1;
+ }
+ memcpy(&txn, (void*) ptr, sizeof(struct binder_transaction_data_secctx));
+ ptr += sizeof(struct binder_transaction_data_secctx);
+ } else /* BR_TRANSACTION */ {
+ if ((end - ptr) < sizeof(struct binder_transaction_data)) {
+ ALOGE("parse: txn too small (binder_transaction_data)!\n");
+ return -1;
+ }
+ memcpy(&txn.transaction_data, (void*) ptr, sizeof(struct binder_transaction_data));
+ ptr += sizeof(struct binder_transaction_data);
+
+ txn.secctx = 0;
}
- binder_dump_txn(txn);
+
+ binder_dump_txn(&txn.transaction_data);
if (func) {
unsigned rdata[256/4];
struct binder_io msg;
@@ -254,15 +283,14 @@
int res;
bio_init(&reply, rdata, sizeof(rdata), 4);
- bio_init_from_txn(&msg, txn);
- res = func(bs, txn, &msg, &reply);
- if (txn->flags & TF_ONE_WAY) {
- binder_free_buffer(bs, txn->data.ptr.buffer);
+ bio_init_from_txn(&msg, &txn.transaction_data);
+ res = func(bs, &txn, &msg, &reply);
+ if (txn.transaction_data.flags & TF_ONE_WAY) {
+ binder_free_buffer(bs, txn.transaction_data.data.ptr.buffer);
} else {
- binder_send_reply(bs, &reply, txn->data.ptr.buffer, res);
+ binder_send_reply(bs, &reply, txn.transaction_data.data.ptr.buffer, res);
}
}
- ptr += sizeof(*txn);
break;
}
case BR_REPLY: {