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Message-Id: <cb88576237b1bc4fc7981200c2c23ae05790db0d.1393974970.git.rgb@redhat.com>
Date: Wed, 5 Mar 2014 16:27:02 -0500
From: Richard Guy Briggs <rgb@...hat.com>
To: linux-audit@...hat.com, linux-kernel@...r.kernel.org
Cc: Richard Guy Briggs <rgb@...hat.com>, eparis@...hat.com,
sgrubb@...hat.com, oleg@...hat.com,
linux-arm-kernel@...ts.infradead.org, x86@...nel.org,
linux-ia64@...r.kernel.org, microblaze-uclinux@...e.uq.edu.au,
linux-mips@...ux-mips.org, linux@...nrisc.net,
linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
sparclinux@...r.kernel.org,
user-mode-linux-devel@...ts.sourceforge.net,
linux-arch@...r.kernel.org
Subject: [PATCH 1/6][RFC] syscall: define syscall_get_arch() for each audit-supported arch
Each arch that supports audit requires syscall_get_arch() to able to log and
identify architecture-dependent syscall numbers. The information is used in at
least two different subsystems, so standardize it in the same call across all
arches.
Signed-off-by: Richard Guy Briggs <rgb@...hat.com>
---
arch/ia64/include/asm/syscall.h | 7 +++++++
arch/microblaze/include/asm/syscall.h | 6 ++++++
arch/mips/include/asm/syscall.h | 8 +++++++-
arch/openrisc/include/asm/syscall.h | 6 ++++++
arch/parisc/include/asm/syscall.h | 12 ++++++++++++
arch/powerpc/include/asm/syscall.h | 13 +++++++++++++
arch/sh/include/asm/syscall.h | 17 +++++++++++++++++
arch/sparc/include/asm/syscall.h | 8 ++++++++
include/uapi/linux/audit.h | 1 +
9 files changed, 77 insertions(+), 1 deletions(-)
diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h
index a7ff1c6..0fd2a7a 100644
--- a/arch/ia64/include/asm/syscall.h
+++ b/arch/ia64/include/asm/syscall.h
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/err.h>
+#include <linux/audit.h>
static inline long syscall_get_nr(struct task_struct *task,
struct pt_regs *regs)
@@ -79,4 +80,10 @@ static inline void syscall_set_arguments(struct task_struct *task,
ia64_syscall_get_set_arguments(task, regs, i, n, args, 1);
}
+
+static inline int syscall_get_arch(struct task_struct *tsk,
+ struct pt_regs *regs)
+{
+ return AUDIT_ARCH_IA64;
+}
#endif /* _ASM_SYSCALL_H */
diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
index 9bc4317..06854da 100644
--- a/arch/microblaze/include/asm/syscall.h
+++ b/arch/microblaze/include/asm/syscall.h
@@ -3,6 +3,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/audit.h>
#include <asm/ptrace.h>
/* The system call number is given by the user in R12 */
@@ -99,4 +100,9 @@ static inline void syscall_set_arguments(struct task_struct *task,
asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
+static inline int syscall_get_arch(struct tast_struct *tsk,
+ struct pt_regs *regs)
+{
+ return AUDIT_ARCH_MICROBLAZE;
+}
#endif /* __ASM_MICROBLAZE_SYSCALL_H */
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 81c8913..41ecde4 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -103,7 +103,7 @@ extern const unsigned long sysn32_call_table[];
static inline int __syscall_get_arch(void)
{
- int arch = EM_MIPS;
+ int arch = AUDIT_ARCH_MIPS;
#ifdef CONFIG_64BIT
arch |= __AUDIT_ARCH_64BIT;
#endif
@@ -113,4 +113,10 @@ static inline int __syscall_get_arch(void)
return arch;
}
+static inline int syscall_get_arch(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ return __syscall_get_arch();
+}
+
#endif /* __ASM_MIPS_SYSCALL_H */
diff --git a/arch/openrisc/include/asm/syscall.h b/arch/openrisc/include/asm/syscall.h
index b752bb6..534b9c3 100644
--- a/arch/openrisc/include/asm/syscall.h
+++ b/arch/openrisc/include/asm/syscall.h
@@ -21,6 +21,7 @@
#include <linux/err.h>
#include <linux/sched.h>
+#include <linux/audit.h>
static inline int
syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
@@ -71,4 +72,9 @@ syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
memcpy(®s->gpr[3 + i], args, n * sizeof(args[0]));
}
+static inline int syscall_get_arch(struct task_struct *tsk,
+ struct pt_regs *regs)
+{
+ return AUDIT_ARCH_OPENRISC;
+}
#endif
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
index 8bdfd2c..b3b604f 100644
--- a/arch/parisc/include/asm/syscall.h
+++ b/arch/parisc/include/asm/syscall.h
@@ -4,6 +4,8 @@
#define _ASM_PARISC_SYSCALL_H_
#include <linux/err.h>
+#include <linux/compat.h>
+#include <linux/audit.h>
#include <asm/ptrace.h>
static inline long syscall_get_nr(struct task_struct *tsk,
@@ -37,4 +39,14 @@ static inline void syscall_get_arguments(struct task_struct *tsk,
}
}
+static inline int syscall_get_arch(struct task_struct *tsk,
+ struct pt_regs *regs)
+{
+ int arch = AUDIT_ARCH_PARISC;
+#ifdef CONFIG_64BIT
+ if (!is_compat_task())
+ arch = AUDIT_ARCH_PARISC64;
+#endif
+ return arch;
+}
#endif /*_ASM_PARISC_SYSCALL_H_*/
diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h
index b54b2ad..b824eb2 100644
--- a/arch/powerpc/include/asm/syscall.h
+++ b/arch/powerpc/include/asm/syscall.h
@@ -14,6 +14,8 @@
#define _ASM_SYSCALL_H 1
#include <linux/sched.h>
+#include <linux/compat.h>
+#include <linux/audit.h>
/* ftrace syscalls requires exporting the sys_call_table */
#ifdef CONFIG_FTRACE_SYSCALLS
@@ -86,4 +88,15 @@ static inline void syscall_set_arguments(struct task_struct *task,
memcpy(®s->gpr[3 + i], args, n * sizeof(args[0]));
}
+static inline int syscall_get_arch(struct task_struct *tsk,
+ struct pt_regs *regs)
+{
+ int arch = AUDIT_ARCH_PPC;
+
+#ifdef CONFIG_PPC64
+ if (!is_32bit_task())
+ arch = AUDIT_ARCH_PPC64;
+#endif
+ return arch;
+}
#endif /* _ASM_SYSCALL_H */
diff --git a/arch/sh/include/asm/syscall.h b/arch/sh/include/asm/syscall.h
index 847128d..f1a79d4 100644
--- a/arch/sh/include/asm/syscall.h
+++ b/arch/sh/include/asm/syscall.h
@@ -9,4 +9,21 @@ extern const unsigned long sys_call_table[];
# include <asm/syscall_64.h>
#endif
+# include <linux/audit.h>
+
+static inline int syscall_get_arch(struct task_struct *tsk,
+ struct pt_regs *regs)
+{
+ int arch = AUDIT_ARCH_SH;
+
+#ifdef CONFIG_64BIT
+ arch |= __AUDIT_ARCH_64BIT;
+#endif
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+ arch |= __AUDIT_ARCH_LE;
+#endif
+
+ return arch;
+}
+
#endif /* __ASM_SH_SYSCALL_H */
diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h
index 025a02a..c7a8f75 100644
--- a/arch/sparc/include/asm/syscall.h
+++ b/arch/sparc/include/asm/syscall.h
@@ -3,6 +3,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/audit.h>
#include <asm/ptrace.h>
/*
@@ -124,4 +125,11 @@ static inline void syscall_set_arguments(struct task_struct *task,
regs->u_regs[UREG_I0 + i + j] = args[j];
}
+static inline int syscall_get_arch(struct task_struct *tsk,
+ struct pt_regs *regs)
+{
+ return test_thread_flag(TIF_32BIT) ? AUDIT_ARCH_SPARC
+ : AUDIT_ARCH_SPARC64;
+}
+
#endif /* __ASM_SPARC_SYSCALL_H */
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 2d48fe1..b9c4826 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -342,6 +342,7 @@ enum {
#define AUDIT_ARCH_IA64 (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_M32R (EM_M32R)
#define AUDIT_ARCH_M68K (EM_68K)
+#define AUDIT_ARCH_MICROBLAZE (EM_MICROBLAZE)
#define AUDIT_ARCH_MIPS (EM_MIPS)
#define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_MIPS64 (EM_MIPS|__AUDIT_ARCH_64BIT)
--
1.7.1
--
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