diff options
Diffstat (limited to 'arch/alpha/kernel')
| -rw-r--r-- | arch/alpha/kernel/Makefile | 1 | ||||
| -rw-r--r-- | arch/alpha/kernel/audit.c | 60 | ||||
| -rw-r--r-- | arch/alpha/kernel/entry.S | 6 | ||||
| -rw-r--r-- | arch/alpha/kernel/ptrace.c | 4 |
4 files changed, 70 insertions, 1 deletions
diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile index 0d54650e78f..3ecac0106c8 100644 --- a/arch/alpha/kernel/Makefile +++ b/arch/alpha/kernel/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_SRM_ENV) += srm_env.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_PERF_EVENTS) += perf_event.o obj-$(CONFIG_RTC_DRV_ALPHA) += rtc.o +obj-$(CONFIG_AUDIT) += audit.o ifdef CONFIG_ALPHA_GENERIC diff --git a/arch/alpha/kernel/audit.c b/arch/alpha/kernel/audit.c new file mode 100644 index 00000000000..96a9d18ff4c --- /dev/null +++ b/arch/alpha/kernel/audit.c @@ -0,0 +1,60 @@ +#include <linux/init.h> +#include <linux/types.h> +#include <linux/audit.h> +#include <asm/unistd.h> + +static unsigned dir_class[] = { +#include <asm-generic/audit_dir_write.h> +~0U +}; + +static unsigned read_class[] = { +#include <asm-generic/audit_read.h> +~0U +}; + +static unsigned write_class[] = { +#include <asm-generic/audit_write.h> +~0U +}; + +static unsigned chattr_class[] = { +#include <asm-generic/audit_change_attr.h> +~0U +}; + +static unsigned signal_class[] = { +#include <asm-generic/audit_signal.h> +~0U +}; + +int audit_classify_arch(int arch) +{ + return 0; +} + +int audit_classify_syscall(int abi, unsigned syscall) +{ + switch(syscall) { + case __NR_open: + return 2; + case __NR_openat: + return 3; + case __NR_execve: + return 5; + default: + return 0; + } +} + +static int __init audit_classes_init(void) +{ + audit_register_class(AUDIT_CLASS_WRITE, write_class); + audit_register_class(AUDIT_CLASS_READ, read_class); + audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class); + audit_register_class(AUDIT_CLASS_CHATTR, chattr_class); + audit_register_class(AUDIT_CLASS_SIGNAL, signal_class); + return 0; +} + +__initcall(audit_classes_init); diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S index a969b95ee5a..98703d99b56 100644 --- a/arch/alpha/kernel/entry.S +++ b/arch/alpha/kernel/entry.S @@ -465,7 +465,11 @@ entSys: .cfi_rel_offset $16, SP_OFF+24 .cfi_rel_offset $17, SP_OFF+32 .cfi_rel_offset $18, SP_OFF+40 - blbs $3, strace +#ifdef CONFIG_AUDITSYSCALL + lda $6, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT + and $3, $6, $3 +#endif + bne $3, strace beq $4, 1f ldq $27, 0($5) 1: jsr $26, ($27), alpha_ni_syscall diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c index 2a4a80ff4a2..86d835157b5 100644 --- a/arch/alpha/kernel/ptrace.c +++ b/arch/alpha/kernel/ptrace.c @@ -14,6 +14,7 @@ #include <linux/security.h> #include <linux/signal.h> #include <linux/tracehook.h> +#include <linux/audit.h> #include <asm/uaccess.h> #include <asm/pgtable.h> @@ -316,15 +317,18 @@ long arch_ptrace(struct task_struct *child, long request, asmlinkage unsigned long syscall_trace_enter(void) { unsigned long ret = 0; + struct pt_regs *regs = current_pt_regs(); if (test_thread_flag(TIF_SYSCALL_TRACE) && tracehook_report_syscall_entry(current_pt_regs())) ret = -1UL; + audit_syscall_entry(AUDIT_ARCH_ALPHA, regs->r0, regs->r16, regs->r17, regs->r18, regs->r19); return ret ?: current_pt_regs()->r0; } 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); } |