fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / linux / personality.h

diff --git a/include/linux/personality.h b/include/linux/personality.h
index db31c58..012cd55 100644 (file)
--- a/include/linux/personality.h
+++ b/include/linux/personality.h
@@ -1,6 +1,8 @@
 #ifndef _LINUX_PERSONALITY_H
 #define _LINUX_PERSONALITY_H
 
+#ifdef __KERNEL__
+
 /*
  * Handling of different ABIs (personalities).
  */
@@ -12,12 +14,18 @@ extern int          register_exec_domain(struct exec_domain *);
 extern int             unregister_exec_domain(struct exec_domain *);
 extern int             __set_personality(unsigned long);
 
+#endif /* __KERNEL__ */
+
 /*
  * Flags for bug emulation.
  *
  * These occupy the top three bytes.
  */
 enum {
+       ADDR_NO_RANDOMIZE =     0x0040000,      /* disable randomization of VA space */
+       FDPIC_FUNCPTRS =        0x0080000,      /* userspace function ptrs point to descriptors
+                                                * (signal handling)
+                                                */
        MMAP_PAGE_ZERO =        0x0100000,
        ADDR_COMPAT_LAYOUT =    0x0200000,
        READ_IMPLIES_EXEC =     0x0400000,
@@ -32,7 +40,7 @@ enum {
  * Security-relevant compatibility flags that must be
  * cleared upon setuid or setgid exec:
  */
-#define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC)
+#define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC|ADDR_NO_RANDOMIZE)
 
 /*
  * Personality types.
@@ -43,6 +51,7 @@ enum {
 enum {
        PER_LINUX =             0x0000,
        PER_LINUX_32BIT =       0x0000 | ADDR_LIMIT_32BIT,
+       PER_LINUX_FDPIC =       0x0000 | FDPIC_FUNCPTRS,
        PER_SVR4 =              0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
        PER_SVR3 =              0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
        PER_SCOSVR3 =           0x0003 | STICKY_TIMEOUTS |
@@ -66,6 +75,7 @@ enum {
        PER_MASK =              0x00ff,
 };
 
+#ifdef __KERNEL__
 
 /*
  * Description of an execution domain.
@@ -104,6 +114,8 @@ struct exec_domain {
  * Change personality of the currently running process.
  */
 #define set_personality(pers) \
-       ((current->personality == pers) ? 0 : __set_personality(pers))
+       ((current->personality == (pers)) ? 0 : __set_personality(pers))
+
+#endif /* __KERNEL__ */
 
 #endif /* _LINUX_PERSONALITY_H */