[PATCH] audit syscall classes

Allow to tie upper bits of syscall bitmap in audit rules to kernel-defined
sets of syscalls.  Infrastructure, a couple of classes (with 32bit counterparts
for biarch targets) and actual tie-in on i386, amd64 and ia64.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 39 insertions, 0 deletions

diff --git a/include/asm-generic/audit_change_attr.h b/include/asm-generic/audit_change_attr.h
new file mode 100644
index 000000000000..cb05bf69745a
--- /dev/null
+++ b/include/asm-generic/audit_change_attr.h
@@ -0,0 +1,18 @@
+__NR_chmod,
+__NR_fchmod,
+__NR_chown,
+__NR_fchown,
+__NR_lchown,
+__NR_setxattr,
+__NR_lsetxattr,
+__NR_fsetxattr,
+__NR_removexattr,
+__NR_lremovexattr,
+__NR_fremovexattr,
+__NR_fchownat,
+__NR_fchmodat,
+#ifdef __NR_chown32
+__NR_chown32,
+__NR_fchown32,
+__NR_lchown32,
+#endif
diff --git a/include/asm-generic/audit_dir_write.h b/include/asm-generic/audit_dir_write.h
new file mode 100644
index 000000000000..161a7a58fbab
--- /dev/null
+++ b/include/asm-generic/audit_dir_write.h
@@ -0,0 +1,14 @@
+__NR_rename,
+__NR_mkdir,
+__NR_rmdir,
+__NR_creat,
+__NR_link,
+__NR_unlink,
+__NR_symlink,
+__NR_mknod,
+__NR_mkdirat,
+__NR_mknodat,
+__NR_unlinkat,
+__NR_renameat,
+__NR_linkat,
+__NR_symlinkat,
diff --git a/include/linux/audit.h b/include/linux/audit.h
index c211f0a2abb4..b27d7debc5a1 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -127,6 +127,12 @@
 #define AUDIT_WORD(nr) ((__u32)((nr)/32))
 #define AUDIT_BIT(nr)  (1 << ((nr) - AUDIT_WORD(nr)*32))
 
+#define AUDIT_SYSCALL_CLASSES 16
+#define AUDIT_CLASS_DIR_WRITE 0
+#define AUDIT_CLASS_DIR_WRITE_32 1
+#define AUDIT_CLASS_CHATTR 2
+#define AUDIT_CLASS_CHATTR_32 3
+
 /* This bitmask is used to validate user input.  It represents all bits that
  * are currently used in an audit field constant understood by the kernel.
  * If you are adding a new #define AUDIT_<whatever>, please ensure that
@@ -307,6 +313,7 @@ struct mqstat;
 #define AUDITSC_SUCCESS 1
 #define AUDITSC_FAILURE 2
 #define AUDITSC_RESULT(x) ( ((long)(x))<0?AUDITSC_FAILURE:AUDITSC_SUCCESS )
+extern int __init audit_register_class(int class, unsigned *list);
 #ifdef CONFIG_AUDITSYSCALL
 /* These are defined in auditsc.c */
                                 /* Public API */