Re: [PATCH v3 1/8] bluetooth: /proc/net/ entries for bluetoothprotocols
From: Andrei Emeltchenko
Date: Tue Jul 24 2012 - 09:15:23 EST
Hi Masatake,
On Tue, Jul 24, 2012 at 10:08:31PM +0900, Masatake YAMATO wrote:
> (I have got no reply since 11th Jul. So I resend this mail here.
> Please, review this patch and merge it if no problem.)
>
> (The patch sets are rebased to bluetooth-next. Unnecessary white
> spaces are trimmed.)
>
> lsof command can tell the type of socket processes are using.
> Internal lsof uses inode numbers on socket fs to resolve the type of
> sockets. Files under /proc/net/, such as tcp, udp, unix, etc provides
> such inode information.
>
> Unfortunately bluetooth related protocols don't provide such inode
> information. This patch series introduces /proc/net files for the protocols.
>
> This patch against af_bluetooth.c provides facility to the implementation
> of protocols. This patch extends bt_sock_list and introduces two exported
> function bt_procfs_init, bt_procfs_cleanup.
>
> The type bt_sock_list is already used in some of implementation of
> protocols. bt_procfs_init prepare seq_operations which converts
> protocol own bt_sock_list data to protocol own proc entry when the
> entry is accessed.
>
> What I, lsof user, need is just inode number of bluetooth
> socket. However, people may want more information. The bt_procfs_init
> takes a function pointer for customizing the show handler of
> seq_operations.
>
> Signed-off-by: Masatake YAMATO <yamato@xxxxxxxxxx>
Tested-by: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
Best regards
Andrei Emeltchenko
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