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 11struct exec_domain; 12struct pt_regs; 13 14extern int register_exec_domain(struct exec_domain *); 15extern int unregister_exec_domain(struct exec_domain *); 16extern 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 */ 25typedef void (*handler_t)(int, struct pt_regs *); 26 27struct 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