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Re: [RFC PATCH 5/5] syscall: sys_fbind() introduced [message #47541 is a reply to message #47540]

Wed, 15 August 2012 16:30

hpa
Messages: 38
Registered: January 2007

Member

On 08/15/2012 09:22 AM, Stanislav Kinsbursky wrote:
> This syscall allows to bind socket to specified file descriptor.
> Descriptor can be gained by simple open with O_PATH flag.
> Socket node can be created by sys_mknod().
>
> Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
> ---
> arch/x86/syscalls/syscall_32.tbl | 1 +
> arch/x86/syscalls/syscall_64.tbl | 1 +
> include/linux/syscalls.h | 1 +
> kernel/sys_ni.c | 3 +++
> net/socket.c | 25 +++++++++++++++++++++++++
> 5 files changed, 31 insertions(+), 0 deletions(-)
>
> diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl
> index 7a35a6e..9594b82 100644
> --- a/arch/x86/syscalls/syscall_32.tbl
> +++ b/arch/x86/syscalls/syscall_32.tbl
> @@ -356,3 +356,4 @@
> 347 i386 process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv
> 348 i386 process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev
> 349 i386 kcmp sys_kcmp
> +350 i386 fbind sys_fbind

i386 uses socketcalls... perhaps it shouldn't (socketcalls are pretty
much an abomination), but for socketcall-based architectures this really
should be a socketcall.

Don't you also need fconnect()? Or is that simply handled by allowing
open() without O_PATH?

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.

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[Message index]

		[RFC PATCH 0/5] net: socket bind to file descriptor introduced By: Stanislav Kinsbursky on Wed, 15 August 2012 16:21
		[RFC PATCH 2/5] net: split unix_bind() By: Stanislav Kinsbursky on Wed, 15 August 2012 16:22
		[RFC PATCH 1/5] net: cleanup unix_bind() a little By: Stanislav Kinsbursky on Wed, 15 August 2012 16:22
		[RFC PATCH 3/5] net: new protocol operation fbind() introduced By: Stanislav Kinsbursky on Wed, 15 August 2012 16:22
		[RFC PATCH 4/5] net: fbind() for unix sockets protocol operations introduced By: Stanislav Kinsbursky on Wed, 15 August 2012 16:22
		[RFC PATCH 5/5] syscall: sys_fbind() introduced By: Stanislav Kinsbursky on Wed, 15 August 2012 16:22
		Re: [RFC PATCH 5/5] syscall: sys_fbind() introduced By: hpa on Wed, 15 August 2012 16:30
		Re: [RFC PATCH 5/5] syscall: sys_fbind() introduced By: Stanislav Kinsbursky on Wed, 15 August 2012 16:43
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: hpa on Wed, 15 August 2012 17:54
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: ebiederm on Wed, 15 August 2012 19:49
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: hpa on Wed, 15 August 2012 20:58
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: ebiederm on Wed, 15 August 2012 21:25
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: ebiederm on Thu, 16 August 2012 03:03
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: bfields on Thu, 16 August 2012 13:54
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: Stanislav Kinsbursky on Mon, 20 August 2012 10:18
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: bfields on Tue, 04 September 2012 19:00
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: bfields on Fri, 05 October 2012 20:00
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: Stanislav Kinsbursky on Mon, 08 October 2012 08:37
		Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced By: Ben Pfaff on Wed, 15 August 2012 16:52

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