/usr/include/libmongoc-1.0/op-header.def is in libmongoc-dev 1.9.2+dfsg-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | RPC(
header,
INT32_FIELD(msg_len)
INT32_FIELD(request_id)
INT32_FIELD(response_to)
INT32_FIELD(opcode)
)
|