diff options
Diffstat (limited to 'arch/parisc/kernel')
| -rw-r--r-- | arch/parisc/kernel/Makefile | 4 | ||||
| -rw-r--r-- | arch/parisc/kernel/audit.c | 81 | ||||
| -rw-r--r-- | arch/parisc/kernel/compat_audit.c | 40 | ||||
| -rw-r--r-- | arch/parisc/kernel/ptrace.c | 26 |
4 files changed, 147 insertions, 4 deletions
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile index 66ee3f12df5..ff87b4603e3 100644 --- a/arch/parisc/kernel/Makefile +++ b/arch/parisc/kernel/Makefile @@ -29,7 +29,9 @@ obj-$(CONFIG_PCI) += pci.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_64BIT) += binfmt_elf32.o sys_parisc32.o signal32.o obj-$(CONFIG_STACKTRACE)+= stacktrace.o +obj-$(CONFIG_AUDIT) += audit.o +obj64-$(CONFIG_AUDIT) += compat_audit.o # only supported for PCX-W/U in 64-bit mode at the moment -obj-$(CONFIG_64BIT) += perf.o perf_asm.o +obj-$(CONFIG_64BIT) += perf.o perf_asm.o $(obj64-y) obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o diff --git a/arch/parisc/kernel/audit.c b/arch/parisc/kernel/audit.c new file mode 100644 index 00000000000..eb64a6148c8 --- /dev/null +++ b/arch/parisc/kernel/audit.c @@ -0,0 +1,81 @@ +#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) +{ +#ifdef CONFIG_COMPAT + if (arch == AUDIT_ARCH_PARISC) + return 1; +#endif + return 0; +} + +int audit_classify_syscall(int abi, unsigned syscall) +{ +#ifdef CONFIG_COMPAT + extern int parisc32_classify_syscall(unsigned); + if (abi == AUDIT_ARCH_PARISC) + return parisc32_classify_syscall(syscall); +#endif + 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) +{ +#ifdef CONFIG_COMPAT + extern __u32 parisc32_dir_class[]; + extern __u32 parisc32_write_class[]; + extern __u32 parisc32_read_class[]; + extern __u32 parisc32_chattr_class[]; + extern __u32 parisc32_signal_class[]; + audit_register_class(AUDIT_CLASS_WRITE_32, parisc32_write_class); + audit_register_class(AUDIT_CLASS_READ_32, parisc32_read_class); + audit_register_class(AUDIT_CLASS_DIR_WRITE_32, parisc32_dir_class); + audit_register_class(AUDIT_CLASS_CHATTR_32, parisc32_chattr_class); + audit_register_class(AUDIT_CLASS_SIGNAL_32, parisc32_signal_class); +#endif + 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/parisc/kernel/compat_audit.c b/arch/parisc/kernel/compat_audit.c new file mode 100644 index 00000000000..c74478f6bc7 --- /dev/null +++ b/arch/parisc/kernel/compat_audit.c @@ -0,0 +1,40 @@ +#include <asm/unistd.h> + +unsigned int parisc32_dir_class[] = { +#include <asm-generic/audit_dir_write.h> +~0U +}; + +unsigned int parisc32_chattr_class[] = { +#include <asm-generic/audit_change_attr.h> +~0U +}; + +unsigned int parisc32_write_class[] = { +#include <asm-generic/audit_write.h> +~0U +}; + +unsigned int parisc32_read_class[] = { +#include <asm-generic/audit_read.h> +~0U +}; + +unsigned int parisc32_signal_class[] = { +#include <asm-generic/audit_signal.h> +~0U +}; + +int parisc32_classify_syscall(unsigned syscall) +{ + switch (syscall) { + case __NR_open: + return 2; + case __NR_openat: + return 3; + case __NR_execve: + return 5; + default: + return 1; + } +} diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c index 534abd4936e..e842ee233db 100644 --- a/arch/parisc/kernel/ptrace.c +++ b/arch/parisc/kernel/ptrace.c @@ -19,6 +19,7 @@ #include <linux/security.h> #include <linux/compat.h> #include <linux/signal.h> +#include <linux/audit.h> #include <asm/uaccess.h> #include <asm/pgtable.h> @@ -267,11 +268,28 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, long do_syscall_trace_enter(struct pt_regs *regs) { + long ret = 0; + if (test_thread_flag(TIF_SYSCALL_TRACE) && tracehook_report_syscall_entry(regs)) - return -1L; - - return regs->gr[20]; + ret = -1L; + +#ifdef CONFIG_64BIT + if (!is_compat_task()) + audit_syscall_entry(AUDIT_ARCH_PARISC64, + regs->gr[20], + regs->gr[26], regs->gr[25], + regs->gr[24], regs->gr[23]); + else +#endif + audit_syscall_entry(AUDIT_ARCH_PARISC, + regs->gr[20] & 0xffffffff, + regs->gr[26] & 0xffffffff, + regs->gr[25] & 0xffffffff, + regs->gr[24] & 0xffffffff, + regs->gr[23] & 0xffffffff); + + return ret ? : regs->gr[20]; } void do_syscall_trace_exit(struct pt_regs *regs) @@ -279,6 +297,8 @@ void do_syscall_trace_exit(struct pt_regs *regs) int stepping = test_thread_flag(TIF_SINGLESTEP) || test_thread_flag(TIF_BLOCKSTEP); + audit_syscall_exit(regs); + if (stepping || test_thread_flag(TIF_SYSCALL_TRACE)) tracehook_report_syscall_exit(regs, stepping); } |