4b58841149
lib/audit.c provides a generic function for auditing system calls. This patch extends it for compat syscall support on bi-architectures (32/64-bit) by adding lib/compat_audit.c. What is required to support this feature are: * add asm/unistd32.h for compat system call names * select CONFIG_AUDIT_ARCH_COMPAT_GENERIC Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Acked-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com>
81 lines
1.7 KiB
C
81 lines
1.7 KiB
C
#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/audit.h>
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#include <asm/unistd.h>
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static unsigned dir_class[] = {
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#include <asm-generic/audit_dir_write.h>
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~0U
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};
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static unsigned read_class[] = {
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#include <asm-generic/audit_read.h>
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~0U
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};
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static unsigned write_class[] = {
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#include <asm-generic/audit_write.h>
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~0U
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};
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static unsigned chattr_class[] = {
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#include <asm-generic/audit_change_attr.h>
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~0U
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};
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static unsigned signal_class[] = {
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#include <asm-generic/audit_signal.h>
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~0U
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};
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int audit_classify_arch(int arch)
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{
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if (audit_is_compat(arch))
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return 1;
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else
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return 0;
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}
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int audit_classify_syscall(int abi, unsigned syscall)
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{
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if (audit_is_compat(abi))
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return audit_classify_compat_syscall(abi, syscall);
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switch(syscall) {
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#ifdef __NR_open
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case __NR_open:
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return 2;
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#endif
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#ifdef __NR_openat
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case __NR_openat:
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return 3;
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#endif
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#ifdef __NR_socketcall
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case __NR_socketcall:
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return 4;
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#endif
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case __NR_execve:
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return 5;
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default:
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return 0;
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}
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}
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static int __init audit_classes_init(void)
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{
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#ifdef CONFIG_AUDIT_COMPAT_GENERIC
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audit_register_class(AUDIT_CLASS_WRITE_32, compat_write_class);
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audit_register_class(AUDIT_CLASS_READ_32, compat_read_class);
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audit_register_class(AUDIT_CLASS_DIR_WRITE_32, compat_dir_class);
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audit_register_class(AUDIT_CLASS_CHATTR_32, compat_chattr_class);
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audit_register_class(AUDIT_CLASS_SIGNAL_32, compat_signal_class);
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#endif
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audit_register_class(AUDIT_CLASS_WRITE, write_class);
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audit_register_class(AUDIT_CLASS_READ, read_class);
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audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
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audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
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audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
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return 0;
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}
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__initcall(audit_classes_init);
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