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authorLi Li <dualli@google.com>2025-07-27 21:29:06 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-19 13:53:01 +0300
commit63740349eba78f242bcbf60d5244d7f2b2600853 (patch)
tree6e04694e7703c607c093f5a1fb09725bf2c1b2e3 /include/uapi/linux
parent5cd0645b43c7edf55518272a6c69230a5c631729 (diff)
downloadlinux-63740349eba78f242bcbf60d5244d7f2b2600853.tar.xz
binder: introduce transaction reports via netlink
Introduce a generic netlink multicast event to report binder transaction failures to userspace. This allows subscribers to monitor these events and take appropriate actions, such as stopping a misbehaving application that is spamming a service with huge amount of transactions. The multicast event contains full details of the failed transactions, including the sender/target PIDs, payload size and specific error code. This interface is defined using a YAML spec, from which the UAPI and kernel headers and source are auto-generated. Signed-off-by: Li Li <dualli@google.com> Signed-off-by: Carlos Llamas <cmllamas@google.com> Link: https://lore.kernel.org/r/20250727182932.2499194-4-cmllamas@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux')
-rw-r--r--include/uapi/linux/android/binder_netlink.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/include/uapi/linux/android/binder_netlink.h b/include/uapi/linux/android/binder_netlink.h
new file mode 100644
index 000000000000..b218f96d6668
--- /dev/null
+++ b/include/uapi/linux/android/binder_netlink.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* Do not edit directly, auto-generated from: */
+/* Documentation/netlink/specs/binder.yaml */
+/* YNL-GEN uapi header */
+
+#ifndef _UAPI_LINUX_ANDROID_BINDER_NETLINK_H
+#define _UAPI_LINUX_ANDROID_BINDER_NETLINK_H
+
+#define BINDER_FAMILY_NAME "binder"
+#define BINDER_FAMILY_VERSION 1
+
+enum {
+ BINDER_A_REPORT_ERROR = 1,
+ BINDER_A_REPORT_CONTEXT,
+ BINDER_A_REPORT_FROM_PID,
+ BINDER_A_REPORT_FROM_TID,
+ BINDER_A_REPORT_TO_PID,
+ BINDER_A_REPORT_TO_TID,
+ BINDER_A_REPORT_IS_REPLY,
+ BINDER_A_REPORT_FLAGS,
+ BINDER_A_REPORT_CODE,
+ BINDER_A_REPORT_DATA_SIZE,
+
+ __BINDER_A_REPORT_MAX,
+ BINDER_A_REPORT_MAX = (__BINDER_A_REPORT_MAX - 1)
+};
+
+enum {
+ BINDER_CMD_REPORT = 1,
+
+ __BINDER_CMD_MAX,
+ BINDER_CMD_MAX = (__BINDER_CMD_MAX - 1)
+};
+
+#define BINDER_MCGRP_REPORT "report"
+
+#endif /* _UAPI_LINUX_ANDROID_BINDER_NETLINK_H */