From patchwork Tue Jan 22 19:49:50 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tom Herbert X-Patchwork-Id: 214635 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 2AEBC2C007C for ; Wed, 23 Jan 2013 06:49:57 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755529Ab3AVTty (ORCPT ); Tue, 22 Jan 2013 14:49:54 -0500 Received: from mail-qc0-f202.google.com ([209.85.216.202]:40357 "EHLO mail-qc0-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753876Ab3AVTtv (ORCPT ); Tue, 22 Jan 2013 14:49:51 -0500 Received: by mail-qc0-f202.google.com with SMTP id s25so215168qcq.5 for ; Tue, 22 Jan 2013 11:49:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:date:from:to:cc:subject:message-id:user-agent :mime-version:content-type; bh=rBPRxmaQGBDzrpWhRPnEXW0Ea1iF7mjP6rlfI4nBov4=; b=JKP3AjVkmc/hkrOFMqfRuzb3zYoBKd8tc9mkPbxkQbNsH01e+WHH61XV0MNKnUK9JB T5WaRgLm0gWWTarPEZ5TmY67euyEMemnxy3mU/ElEXBGm51QGzxWHs7hffk/Ak+zAzKZ xH8tWPAbwTW8aysOiVBGFPa1mrDYpkf8Ukh9KU0lM/PDhnaFOnSauzJt85pyf5my4jBW r+Y26N6QE5xFj8mRvZ7jaMSD/+r/jrZACZYBS6pKvY+C8exBpEMli4DDqTQCKDFKDYq+ iT/mpKd9pfS5Uz4A0uRQiEx6yadT3TxKTFmzQfQTJap0py3lCPrL7C3Cut+ak0cknt+F oyOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:date:from:to:cc:subject:message-id:user-agent :mime-version:content-type:x-gm-message-state; bh=rBPRxmaQGBDzrpWhRPnEXW0Ea1iF7mjP6rlfI4nBov4=; b=Ybw4ivzAi4EwEcl2AvqqlfU81orstPLPoBAwuJCBoput2X0KLEkAbVFUU7WsmIsAvB hRDpb01O+mSA/lAFjosvyLxeKI4GCyvZ3kZXgJUjsVTJPA1Nnm+2Rsudgcq1DM5JLtyp WviiDLg4NhwZKWGW+Y+1UpijKO1A+kAOUOu0L6GSwGbsZNBuMVegAweq9cPcazMaw5Ta ao0C9fZOkkm6rQiMm/JBajMNq4eWHj9N7QMHaqjt8ljdEzPPCwKunHDveWe4eB+jDO9b T0d8ACpaWJmdnvdC4kdtJWpG7COnNSha6M+oVTrT+8SohfofRToXI4wTIqolpmFl7Mri VjJQ== X-Received: by 10.236.181.34 with SMTP id k22mr5101010yhm.7.1358884190994; Tue, 22 Jan 2013 11:49:50 -0800 (PST) Received: from corp2gmr1-2.hot.corp.google.com (corp2gmr1-2.hot.corp.google.com [172.24.189.93]) by gmr-mx.google.com with ESMTPS id e7si439856yhk.3.2013.01.22.11.49.50 (version=TLSv1.1 cipher=AES128-SHA bits=128/128); Tue, 22 Jan 2013 11:49:50 -0800 (PST) Received: from pokey.mtv.corp.google.com (pokey.mtv.corp.google.com [172.17.131.25]) by corp2gmr1-2.hot.corp.google.com (Postfix) with ESMTP id C36F95A415E; Tue, 22 Jan 2013 11:49:50 -0800 (PST) Received: by pokey.mtv.corp.google.com (Postfix, from userid 60832) id 8B95722F058; Tue, 22 Jan 2013 11:49:50 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by pokey.mtv.corp.google.com (Postfix) with ESMTP id 8A95822F013; Tue, 22 Jan 2013 11:49:50 -0800 (PST) Date: Tue, 22 Jan 2013 11:49:50 -0800 (PST) From: Tom Herbert To: netdev@vger.kernel.org, davem@davemloft.net cc: netdev@markandruth.co.uk, eric.dumazet@gmail.com Subject: [PATCH 1/5] soreuseport: infrastructure Message-ID: User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 X-Gm-Message-State: ALoCoQn4w0Czta2oZJ52DnShLxbbuQpK1TFBKy0MnriHat+RjNK4wzflTC2YJnh23PAGh+ebvI4goz6HslP0LDxHecSArz+wdOwFcKITh5UKbACYyD7ZmGYdttdoEGLmW1Dn6tdPB0Fzcktf6FJX50wcCBL5owo80WLraM/z8ZzEIn/Oeme1SE7Qj+n77bkphV5keDUFhdFt Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Definitions and macros for implementing soreusport. Signed-off-by: Tom Herbert --- arch/alpha/include/uapi/asm/socket.h | 2 +- arch/avr32/include/uapi/asm/socket.h | 2 +- arch/cris/include/uapi/asm/socket.h | 2 +- arch/frv/include/uapi/asm/socket.h | 2 +- arch/h8300/include/uapi/asm/socket.h | 2 +- arch/ia64/include/uapi/asm/socket.h | 2 +- arch/m32r/include/uapi/asm/socket.h | 2 +- arch/mips/include/uapi/asm/socket.h | 3 +-- arch/mn10300/include/uapi/asm/socket.h | 2 +- arch/parisc/include/uapi/asm/socket.h | 2 +- arch/powerpc/include/uapi/asm/socket.h | 2 +- arch/s390/include/uapi/asm/socket.h | 2 +- arch/sparc/include/uapi/asm/socket.h | 2 +- arch/xtensa/include/uapi/asm/socket.h | 2 +- include/linux/random.h | 6 ++++++ include/net/sock.h | 5 ++++- include/uapi/asm-generic/socket.h | 3 +-- net/core/sock.c | 7 +++++++ 18 files changed, 32 insertions(+), 18 deletions(-) diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index 755702e..c519552 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -19,7 +19,7 @@ #define SO_BROADCAST 0x0020 #define SO_LINGER 0x0080 #define SO_OOBINLINE 0x0100 -/* To add :#define SO_REUSEPORT 0x0200 */ +#define SO_REUSEPORT 0x0200 #define SO_TYPE 0x1008 #define SO_ERROR 0x1007 diff --git a/arch/avr32/include/uapi/asm/socket.h b/arch/avr32/include/uapi/asm/socket.h index f3f38a0..51c6401 100644 --- a/arch/avr32/include/uapi/asm/socket.h +++ b/arch/avr32/include/uapi/asm/socket.h @@ -22,7 +22,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ +#define SO_REUSEPORT 15 #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 diff --git a/arch/cris/include/uapi/asm/socket.h b/arch/cris/include/uapi/asm/socket.h index 406b583..50692b7 100644 --- a/arch/cris/include/uapi/asm/socket.h +++ b/arch/cris/include/uapi/asm/socket.h @@ -24,7 +24,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ +#define SO_REUSEPORT 15 #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 diff --git a/arch/frv/include/uapi/asm/socket.h b/arch/frv/include/uapi/asm/socket.h index d8e1132..595391f 100644 --- a/arch/frv/include/uapi/asm/socket.h +++ b/arch/frv/include/uapi/asm/socket.h @@ -22,7 +22,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ +#define SO_REUSEPORT 15 #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 diff --git a/arch/h8300/include/uapi/asm/socket.h b/arch/h8300/include/uapi/asm/socket.h index c8b87a8..43e3262 100644 --- a/arch/h8300/include/uapi/asm/socket.h +++ b/arch/h8300/include/uapi/asm/socket.h @@ -22,7 +22,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ +#define SO_REUSEPORT 15 #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 diff --git a/arch/ia64/include/uapi/asm/socket.h b/arch/ia64/include/uapi/asm/socket.h index f390896..c567adc 100644 --- a/arch/ia64/include/uapi/asm/socket.h +++ b/arch/ia64/include/uapi/asm/socket.h @@ -31,7 +31,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ +#define SO_REUSEPORT 15 #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 diff --git a/arch/m32r/include/uapi/asm/socket.h b/arch/m32r/include/uapi/asm/socket.h index 6a89515..519afa2 100644 --- a/arch/m32r/include/uapi/asm/socket.h +++ b/arch/m32r/include/uapi/asm/socket.h @@ -22,7 +22,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ +#define SO_REUSEPORT 15 #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h index 9d11a77..7e27236 100644 --- a/arch/mips/include/uapi/asm/socket.h +++ b/arch/mips/include/uapi/asm/socket.h @@ -28,8 +28,7 @@ #define SO_LINGER 0x0080 /* Block on close of a reliable socket to transmit pending data. */ #define SO_OOBINLINE 0x0100 /* Receive out-of-band data in-band. */ -#if 0 -To add: #define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */ +#define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */ #endif #define SO_TYPE 0x1008 /* Compatible name for SO_STYLE. */ diff --git a/arch/mn10300/include/uapi/asm/socket.h b/arch/mn10300/include/uapi/asm/socket.h index ab702c4..5c7c7c9 100644 --- a/arch/mn10300/include/uapi/asm/socket.h +++ b/arch/mn10300/include/uapi/asm/socket.h @@ -22,7 +22,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ +#define SO_REUSEPORT 15 #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h index da2c8d3..526e4b9 100644 --- a/arch/parisc/include/uapi/asm/socket.h +++ b/arch/parisc/include/uapi/asm/socket.h @@ -13,7 +13,7 @@ #define SO_BROADCAST 0x0020 #define SO_LINGER 0x0080 #define SO_OOBINLINE 0x0100 -/* To add :#define SO_REUSEPORT 0x0200 */ +#define SO_REUSEPORT 0x0200 #define SO_SNDBUF 0x1001 #define SO_RCVBUF 0x1002 #define SO_SNDBUFFORCE 0x100a diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h index e6ca318..a26dcae 100644 --- a/arch/powerpc/include/uapi/asm/socket.h +++ b/arch/powerpc/include/uapi/asm/socket.h @@ -29,7 +29,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ +#define SO_REUSEPORT 15 #define SO_RCVLOWAT 16 #define SO_SNDLOWAT 17 #define SO_RCVTIMEO 18 diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h index 9ce60b6..f99eea7 100644 --- a/arch/s390/include/uapi/asm/socket.h +++ b/arch/s390/include/uapi/asm/socket.h @@ -28,7 +28,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ +#define SO_REUSEPORT 15 #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h index fbbba57..cbbad74 100644 --- a/arch/sparc/include/uapi/asm/socket.h +++ b/arch/sparc/include/uapi/asm/socket.h @@ -15,7 +15,7 @@ #define SO_PEERCRED 0x0040 #define SO_LINGER 0x0080 #define SO_OOBINLINE 0x0100 -/* To add :#define SO_REUSEPORT 0x0200 */ +#define SO_REUSEPORT 0x0200 #define SO_BSDCOMPAT 0x0400 #define SO_RCVLOWAT 0x0800 #define SO_SNDLOWAT 0x1000 diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h index dbf3164..35905cb 100644 --- a/arch/xtensa/include/uapi/asm/socket.h +++ b/arch/xtensa/include/uapi/asm/socket.h @@ -32,7 +32,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ +#define SO_REUSEPORT 15 #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 diff --git a/include/linux/random.h b/include/linux/random.h index d984608..347ce55 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -74,4 +74,10 @@ static inline int arch_get_random_int(unsigned int *v) } #endif +/* Pseudo random number generator from numerical recipes. */ +static inline u32 next_pseudo_random32(u32 seed) +{ + return seed * 1664525 + 1013904223; +} + #endif /* _LINUX_RANDOM_H */ diff --git a/include/net/sock.h b/include/net/sock.h index 5a34e2f..581dc6b 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -140,6 +140,7 @@ typedef __u64 __bitwise __addrpair; * @skc_family: network address family * @skc_state: Connection state * @skc_reuse: %SO_REUSEADDR setting + * @skc_reuseport: %SO_REUSEPORT setting * @skc_bound_dev_if: bound device index if != 0 * @skc_bind_node: bind hash linkage for various protocol lookup tables * @skc_portaddr_node: second hash linkage for UDP/UDP-Lite protocol @@ -179,7 +180,8 @@ struct sock_common { unsigned short skc_family; volatile unsigned char skc_state; - unsigned char skc_reuse; + unsigned char skc_reuse:4; + unsigned char skc_reuseport:4; int skc_bound_dev_if; union { struct hlist_node skc_bind_node; @@ -297,6 +299,7 @@ struct sock { #define sk_family __sk_common.skc_family #define sk_state __sk_common.skc_state #define sk_reuse __sk_common.skc_reuse +#define sk_reuseport __sk_common.skc_reuseport #define sk_bound_dev_if __sk_common.skc_bound_dev_if #define sk_bind_node __sk_common.skc_bind_node #define sk_prot __sk_common.skc_prot diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h index 3f6a992..4ef3acb 100644 --- a/include/uapi/asm-generic/socket.h +++ b/include/uapi/asm-generic/socket.h @@ -22,8 +22,7 @@ #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ - +#define SO_REUSEPORT 15 #ifndef SO_PASSCRED /* powerpc only differs in these */ #define SO_PASSCRED 16 #define SO_PEERCRED 17 diff --git a/net/core/sock.c b/net/core/sock.c index 8258fb7..235fb89 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -665,6 +665,9 @@ int sock_setsockopt(struct socket *sock, int level, int optname, case SO_REUSEADDR: sk->sk_reuse = (valbool ? SK_CAN_REUSE : SK_NO_REUSE); break; + case SO_REUSEPORT: + sk->sk_reuseport = valbool; + break; case SO_TYPE: case SO_PROTOCOL: case SO_DOMAIN: @@ -972,6 +975,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname, v.val = sk->sk_reuse; break; + case SO_REUSEPORT: + v.val = sk->sk_reuseport; + break; + case SO_KEEPALIVE: v.val = sock_flag(sk, SOCK_KEEPOPEN); break;