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riscv: audit: add audit hook in do_syscall_trace_enter/exit()

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This patch adds auditing functions on entry to and exit from every system
call invocation.

Signed-off-by: David Abdurachmanov <david.abdurachmanov@gmail.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
David Abdurachmanov 2018-10-29 11:48:54 +01:00 committed by Palmer Dabbelt
parent efe75c494f
commit 0aea89430a
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1 changed files with 5 additions and 0 deletions
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5
arch/riscv/kernel/ptrace.c
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@ -18,6 +18,7 @@
#include <asm/ptrace.h>
#include <asm/syscall.h>
#include <asm/thread_info.h>
#include <linux/audit.h>
#include <linux/ptrace.h>
#include <linux/elf.h>
#include <linux/regset.h>
@ -163,10 +164,14 @@ void do_syscall_trace_enter(struct pt_regs *regs)
if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
trace_sys_enter(regs, syscall_get_nr(current, regs));
#endif
audit_syscall_entry(regs->a7, regs->a0, regs->a1, regs->a2, regs->a3);
}
void do_syscall_trace_exit(struct pt_regs *regs)
{
audit_syscall_exit(regs);
if (test_thread_flag(TIF_SYSCALL_TRACE))
tracehook_report_syscall_exit(regs, 0);