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TOMOYO Linux Cross Reference
Linux/include/linux/personality.h

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  1 #ifndef _LINUX_PERSONALITY_H
  2 #define _LINUX_PERSONALITY_H
  3 
  4 #include <uapi/linux/personality.h>
  5 
  6 
  7 /*
  8  * Handling of different ABIs (personalities).
  9  */
 10 
 11 struct exec_domain;
 12 struct pt_regs;
 13 
 14 extern int              register_exec_domain(struct exec_domain *);
 15 extern int              unregister_exec_domain(struct exec_domain *);
 16 extern int              __set_personality(unsigned int);
 17 
 18 
 19 /*
 20  * Description of an execution domain.
 21  * 
 22  * The first two members are refernced from assembly source
 23  * and should stay where they are unless explicitly needed.
 24  */
 25 typedef void (*handler_t)(int, struct pt_regs *);
 26 
 27 struct exec_domain {
 28         const char              *name;          /* name of the execdomain */
 29         handler_t               handler;        /* handler for syscalls */
 30         unsigned char           pers_low;       /* lowest personality */
 31         unsigned char           pers_high;      /* highest personality */
 32         unsigned long           *signal_map;    /* signal mapping */
 33         unsigned long           *signal_invmap; /* reverse signal mapping */
 34         struct map_segment      *err_map;       /* error mapping */
 35         struct map_segment      *socktype_map;  /* socket type mapping */
 36         struct map_segment      *sockopt_map;   /* socket option mapping */
 37         struct map_segment      *af_map;        /* address family mapping */
 38         struct module           *module;        /* module context of the ed. */
 39         struct exec_domain      *next;          /* linked list (internal) */
 40 };
 41 
 42 /*
 43  * Return the base personality without flags.
 44  */
 45 #define personality(pers)       (pers & PER_MASK)
 46 
 47 
 48 /*
 49  * Change personality of the currently running process.
 50  */
 51 #define set_personality(pers) \
 52         ((current->personality == (pers)) ? 0 : __set_personality(pers))
 53 
 54 #endif /* _LINUX_PERSONALITY_H */
 55 

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