On Tue, May 18, 2021 at 11:06 PM Dmitrii Banshchikov <me@xxxxxxxxxxxxx> wrote: > > Introduce IO functions for: > 1) reading and writing data from a descriptor: read_exact(), write_exact(), > 2) reading and writing memory of other processes: pvm_read(), pvm_write(). > > read_exact() and write_exact() are wrappers over read(2)/write(2) with > correct handling of partial read/write. These functions are intended to > be used for communication over pipe with the kernel part of bpfilter. > > pvm_read() and pvm_write() are wrappers over > process_vm_readv(2)/process_vm_writev(2) with an interface that uses a > single buffer instead of vectored form. These functions are intended to > be used for readining/writing memory buffers supplied to iptables ABI > setsockopt(2) from other processes. > > Signed-off-by: Dmitrii Banshchikov <me@xxxxxxxxxxxxx> The code looks correct, so Acked-by: Song Liu <songliubraving@xxxxxx> However, I am not sure whether we really want these wrapper functions. [...]
