Family binder netlink specification

Contents

• Family binder netlink specification

  • Summary

  • Operations

    • report

  • Multicast groups

  • Attribute sets

    • report

Summary

Binder interface over generic netlink

Operations

report

A multicast event sent to userspace subscribers to notify them about binder transaction failures. The generated report provides the full details of the specific transaction that failed. The intention is for programs to monitor these events and react to the failures as needed.

attribute-set

report

mcgrp

report

event

attributes

[error, context, from-pid, from-tid, to-pid, to-tid, is-reply, flags, code, data-size]

Multicast groups

• report

Attribute sets

report

Attributes included within a transaction failure report. The elements correspond directly with the specific transaction that failed, along with the error returned to the sender e.g. BR_DEAD_REPLY.

error (u32)

doc

The enum binder_driver_return_protocol returned to the sender.

context (string)

doc

The binder context where the transaction occurred.

from-pid (u32)

doc

The PID of the sender process.

from-tid (u32)

doc

The TID of the sender thread.

to-pid (u32)

doc

The PID of the recipient process. This attribute may not be present if the target could not be determined.

to-tid (u32)

doc

The TID of the recipient thread. This attribute may not be present if the target could not be determined.

is-reply (flag)

doc

When present, indicates the failed transaction is a reply.

flags (u32)

doc

The bitmask of enum transaction_flags from the transaction.

code (u32)

doc

The application-defined code from the transaction.

data-size (u32)

doc

The transaction payload size in bytes.