Re: [Qemu-devel] [PATCH] char: don't skip client cleanup if 'connected' flag is unset

[Eric Blake]

On 10/05/2017 10:28 AM, Daniel P. Berrange wrote:
> The tcp_chr_free_connection & tcp_chr_disconnect methods both
> skip all of their cleanup work unless the 's->connected' flag
> is set.  This flag is set when the incoming client connection
> is ready to use. Crucially this is *after* the TLS handshake
> has been completed. So if the TLS handshake fails and we try
> to cleanup the failed client, all the cleanup is skipped as
> 's->connected' is still false.
> 
> The only important thing that should be skipped in this case
> is sending of the CHR_EVENT_CLOSED, because we never got as
> far as sending the corresponding CHR_EVENT_OPENED. Every other
> bit of cleanup can be robust against being called even when
> s->connected is false.
> 
> Signed-off-by: Daniel P. Berrange <address@hidden>
> ---
>  chardev/char-socket.c | 31 +++++++++++++++++--------------
>  1 file changed, 17 insertions(+), 14 deletions(-)
> 

Reviewed-by: Eric Blake <address@hidden>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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