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