From patchwork Tue Aug 4 17:28:28 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Engelhardt X-Patchwork-Id: 30729 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@bilbo.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from ozlabs.org (ozlabs.org [203.10.76.45]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mx.ozlabs.org", Issuer "CA Cert Signing Authority" (verified OK)) by bilbo.ozlabs.org (Postfix) with ESMTPS id 5E5A4B6F31 for ; Wed, 5 Aug 2009 03:28:42 +1000 (EST) Received: by ozlabs.org (Postfix) id 4D34DDDDA0; Wed, 5 Aug 2009 03:28:42 +1000 (EST) Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by ozlabs.org (Postfix) with ESMTP id 8B830DDD0C for ; Wed, 5 Aug 2009 03:28:41 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933118AbZHDR2b (ORCPT ); Tue, 4 Aug 2009 13:28:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933106AbZHDR2b (ORCPT ); Tue, 4 Aug 2009 13:28:31 -0400 Received: from sovereign.computergmbh.de ([85.214.69.204]:53437 "EHLO sovereign.computergmbh.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932873AbZHDR2a (ORCPT ); Tue, 4 Aug 2009 13:28:30 -0400 Received: by sovereign.computergmbh.de (Postfix, from userid 25121) id 3D8462D1294; Tue, 4 Aug 2009 19:28:29 +0200 (CEST) From: Jan Engelhardt To: netdev@vger.kernel.org Cc: davem@davemloft.net Subject: [PATCH 1/2] net: implement a SO_PROTOCOL getsockoption Date: Tue, 4 Aug 2009 19:28:28 +0200 Message-Id: <1249406909-24161-1-git-send-email-jengelh@medozas.de> X-Mailer: git-send-email 1.6.3.3 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Similar to SO_TYPE returning the socket type, SO_PROTOCOL allows to retrieve the protocol used with a given socket. I am not quite sure why we have that-many copies of socket.h, and why the values are not the same on all arches either, but for where hex numbers dominate, I use 0x1029 for SO_PROTOCOL as that seems to be the next free unused number across a bunch of operating systems, or so Google results make me want to believe. SO_PROTOCOL for others just uses the next free Linux number, 38. Signed-off-by: Jan Engelhardt --- arch/alpha/include/asm/socket.h | 1 + arch/arm/include/asm/socket.h | 2 ++ arch/avr32/include/asm/socket.h | 2 ++ arch/cris/include/asm/socket.h | 2 ++ arch/frv/include/asm/socket.h | 2 ++ arch/h8300/include/asm/socket.h | 2 ++ arch/ia64/include/asm/socket.h | 2 ++ arch/m32r/include/asm/socket.h | 2 ++ arch/m68k/include/asm/socket.h | 2 ++ arch/microblaze/include/asm/socket.h | 2 ++ arch/mips/include/asm/socket.h | 1 + arch/mn10300/include/asm/socket.h | 2 ++ arch/parisc/include/asm/socket.h | 1 + arch/powerpc/include/asm/socket.h | 2 ++ arch/s390/include/asm/socket.h | 2 ++ arch/sparc/include/asm/socket.h | 2 ++ arch/x86/include/asm/socket.h | 2 ++ arch/xtensa/include/asm/socket.h | 2 ++ include/asm-generic/socket.h | 2 ++ net/core/sock.c | 5 +++++ 20 files changed, 40 insertions(+), 0 deletions(-) diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h index 3641ec1..2f8b4d3 100644 --- a/arch/alpha/include/asm/socket.h +++ b/arch/alpha/include/asm/socket.h @@ -32,6 +32,7 @@ #define SO_RCVTIMEO 0x1012 #define SO_SNDTIMEO 0x1013 #define SO_ACCEPTCONN 0x1014 +#define SO_PROTOCOL 0x1028 /* linux-specific, might as well be the same as on i386 */ #define SO_NO_CHECK 11 diff --git a/arch/arm/include/asm/socket.h b/arch/arm/include/asm/socket.h index 537de4e..7f47454 100644 --- a/arch/arm/include/asm/socket.h +++ b/arch/arm/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/avr32/include/asm/socket.h b/arch/avr32/include/asm/socket.h index 04c8606..6af2866 100644 --- a/arch/avr32/include/asm/socket.h +++ b/arch/avr32/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* __ASM_AVR32_SOCKET_H */ diff --git a/arch/cris/include/asm/socket.h b/arch/cris/include/asm/socket.h index d5cf740..f3859fb 100644 --- a/arch/cris/include/asm/socket.h +++ b/arch/cris/include/asm/socket.h @@ -59,6 +59,8 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/frv/include/asm/socket.h b/arch/frv/include/asm/socket.h index 57c3d40..8dab348 100644 --- a/arch/frv/include/asm/socket.h +++ b/arch/frv/include/asm/socket.h @@ -57,5 +57,7 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/h8300/include/asm/socket.h b/arch/h8300/include/asm/socket.h index 602518a..ba770d0 100644 --- a/arch/h8300/include/asm/socket.h +++ b/arch/h8300/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/ia64/include/asm/socket.h b/arch/ia64/include/asm/socket.h index 7454212..091cd9d 100644 --- a/arch/ia64/include/asm/socket.h +++ b/arch/ia64/include/asm/socket.h @@ -66,4 +66,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_IA64_SOCKET_H */ diff --git a/arch/m32r/include/asm/socket.h b/arch/m32r/include/asm/socket.h index be7ed58..d36f592 100644 --- a/arch/m32r/include/asm/socket.h +++ b/arch/m32r/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_M32R_SOCKET_H */ diff --git a/arch/m68k/include/asm/socket.h b/arch/m68k/include/asm/socket.h index ca87f93..060cb7e 100644 --- a/arch/m68k/include/asm/socket.h +++ b/arch/m68k/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/microblaze/include/asm/socket.h b/arch/microblaze/include/asm/socket.h index 8259368..96bf8bf 100644 --- a/arch/microblaze/include/asm/socket.h +++ b/arch/microblaze/include/asm/socket.h @@ -66,4 +66,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_MICROBLAZE_SOCKET_H */ diff --git a/arch/mips/include/asm/socket.h b/arch/mips/include/asm/socket.h index 2abca17..289ce5f 100644 --- a/arch/mips/include/asm/socket.h +++ b/arch/mips/include/asm/socket.h @@ -42,6 +42,7 @@ To add: #define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */ #define SO_SNDTIMEO 0x1005 /* send timeout */ #define SO_RCVTIMEO 0x1006 /* receive timeout */ #define SO_ACCEPTCONN 0x1009 +#define SO_PROTOCOL 0x1028 /* protocol type */ /* linux-specific, might as well be the same as on i386 */ #define SO_NO_CHECK 11 diff --git a/arch/mn10300/include/asm/socket.h b/arch/mn10300/include/asm/socket.h index fb5daf4..19d7cf7 100644 --- a/arch/mn10300/include/asm/socket.h +++ b/arch/mn10300/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h index 885472b..a658b09 100644 --- a/arch/parisc/include/asm/socket.h +++ b/arch/parisc/include/asm/socket.h @@ -24,6 +24,7 @@ #define SO_RCVTIMEO 0x1006 #define SO_ERROR 0x1007 #define SO_TYPE 0x1008 +#define SO_PROTOCOL 0x1028 #define SO_PEERNAME 0x2000 #define SO_NO_CHECK 0x400b diff --git a/arch/powerpc/include/asm/socket.h b/arch/powerpc/include/asm/socket.h index 1e5cfad..609049d 100644 --- a/arch/powerpc/include/asm/socket.h +++ b/arch/powerpc/include/asm/socket.h @@ -64,4 +64,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_POWERPC_SOCKET_H */ diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h index 02330c5..65baa9a 100644 --- a/arch/s390/include/asm/socket.h +++ b/arch/s390/include/asm/socket.h @@ -65,4 +65,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/sparc/include/asm/socket.h b/arch/sparc/include/asm/socket.h index 982a12f..9cbbfaf 100644 --- a/arch/sparc/include/asm/socket.h +++ b/arch/sparc/include/asm/socket.h @@ -29,6 +29,8 @@ #define SO_RCVBUFFORCE 0x100b #define SO_ERROR 0x1007 #define SO_TYPE 0x1008 +#define SO_PROTOCOL 0x1028 + /* Linux specific, keep the same. */ #define SO_NO_CHECK 0x000b diff --git a/arch/x86/include/asm/socket.h b/arch/x86/include/asm/socket.h index ca8bf2c..1077d25 100644 --- a/arch/x86/include/asm/socket.h +++ b/arch/x86/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_X86_SOCKET_H */ diff --git a/arch/xtensa/include/asm/socket.h b/arch/xtensa/include/asm/socket.h index dd1a7a4..e47f172 100644 --- a/arch/xtensa/include/asm/socket.h +++ b/arch/xtensa/include/asm/socket.h @@ -68,4 +68,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _XTENSA_SOCKET_H */ diff --git a/include/asm-generic/socket.h b/include/asm-generic/socket.h index 5d79e40..7e24d18 100644 --- a/include/asm-generic/socket.h +++ b/include/asm-generic/socket.h @@ -60,4 +60,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* __ASM_GENERIC_SOCKET_H */ diff --git a/net/core/sock.c b/net/core/sock.c index b0ba569..fb71d9e 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -482,6 +482,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, sk->sk_reuse = valbool; break; case SO_TYPE: + case SO_PROTOCOL: case SO_ERROR: ret = -ENOPROTOOPT; break; @@ -764,6 +765,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname, v.val = sk->sk_type; break; + case SO_PROTOCOL: + v.val = sk->sk_protocol; + break; + case SO_ERROR: v.val = -sock_error(sk); if (v.val == 0)