From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?gb2312?Q?=B2=CC=D5=FD=C1=FA?= Subject: [alpha PATCH] enable syscall audit function at alpha architecture Date: Tue, 10 Dec 2013 10:24:25 +0800 Message-ID: <1386642265.6996.9.camel@localhost.localdomain> Reply-To: zhenglong.cai@cs2c.com.cn Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="gb2312" To: linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org Enable system-call auditing support at alpha architecture Signed-off-by: Zhenglong.cai arch/alpha/Kconfig | 3 +++ arch/alpha/include/asm/ptrace.h | 5 +++++ arch/alpha/include/asm/thread_info.h | 2 ++ arch/alpha/kernel/Makefile | 1 + arch/alpha/kernel/entry.S | 6 +++++- arch/alpha/kernel/ptrace.c | 4 ++++ 6 files changed, 20 insertions(+), 1 deletions(-) diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index d39dc9b..f23ab8b 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -16,6 +16,7 @@ config ALPHA select ARCH_WANT_IPC_PARSE_VERSION select ARCH_HAVE_NMI_SAFE_CMPXCHG select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE + select AUDIT_ARCH select GENERIC_CLOCKEVENTS select GENERIC_SMP_IDLE_THREAD select GENERIC_STRNCPY_FROM_USER @@ -76,6 +77,8 @@ config GENERIC_ISA_DMA source "init/Kconfig" source "kernel/Kconfig.freezer" =20 +config AUDIT_ARCH + bool =20 menu "System setup" =20 diff --git a/arch/alpha/include/asm/ptrace.h b/arch/alpha/include/asm/ptrace.h index 2112850..9047c2f 100644 --- a/arch/alpha/include/asm/ptrace.h +++ b/arch/alpha/include/asm/ptrace.h @@ -19,4 +19,9 @@ =20 #define force_successful_syscall_return() (current_pt_regs()->r0 =3D 0= ) =20 +static inline unsigned long regs_return_value(struct pt_regs *regs) +{ + return regs->r0; +} + #endif diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h index 453597b..3d6ce6d 100644 --- a/arch/alpha/include/asm/thread_info.h +++ b/arch/alpha/include/asm/thread_info.h @@ -70,6 +70,7 @@ register struct thread_info *__current_thread_info __asm__("$8"); #define TIF_NOTIFY_RESUME 1 /* callback before returning to user */ #define TIF_SIGPENDING 2 /* signal pending */ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ +#define TIF_SYSCALL_AUDIT 4 /* syscall audit active */ #define TIF_DIE_IF_KERNEL 9 /* dik recursion lock */ #define TIF_MEMDIE 13 /* is terminating due to OOM killer */ =20 @@ -77,6 +78,7 @@ register struct thread_info *__current_thread_info __asm__("$8"); #define _TIF_SIGPENDING (1< #include #include +#include =20 #include #include @@ -316,15 +317,18 @@ long arch_ptrace(struct task_struct *child, long request, asmlinkage unsigned long syscall_trace_enter(void) { unsigned long ret =3D 0; + struct pt_regs *regs =3D current_pt_regs(); if (test_thread_flag(TIF_SYSCALL_TRACE) && tracehook_report_syscall_entry(current_pt_regs())) ret =3D -1UL; + audit_syscall_entry(AUDIT_ARCH_ALPHA, regs->r0, regs->r16, regs->r17, regs->r18, regs->r19); return ret ?: current_pt_regs()->r0; } =20 asmlinkage void syscall_trace_leave(void) { + audit_syscall_exit(current_pt_regs()); if (test_thread_flag(TIF_SYSCALL_TRACE)) tracehook_report_syscall_exit(current_pt_regs(), 0); } --=20 =B9=AB=CB=BE=A3=BA=D6=D0=B1=EA=C8=ED=BC=FE=D3=D0=CF=DE=B9=AB=CB=BE=20 =D0=D5=C3=FB=A3=BA=B2=CC=D5=FD=C1=FA =B5=D8=D6=B7=A3=BA=C9=CF=BA=A3=CA=D0=D5=A2=B1=B1=C7=F8=BD=AD=B3=A1=C8=FD= =C2=B726=A1=A228=BA=C5 12=BA=C5=C2=A5 2=C2=A5 =B5=E7=BB=B0=A3=BA021=A3=AD51060868-8120 =D3=CA=B1=E0=A3=BA200436 Email: zhenglong.cai@cs2c.com.cn