include/syscall.h

   1 #pragma once
   2
   3 #include "types.h"
   4
   5 enum argtype {
   6         ARG_UNDEFINED = 0,
   7         ARG_RANDOM_LONG = 1,
   8         ARG_FD = 2,
   9         ARG_LEN = 3,
  10         ARG_ADDRESS = 4,
  11         ARG_MODE_T = 5,
  12         ARG_NON_NULL_ADDRESS = 6,
  13         ARG_PID = 7,
  14         ARG_RANGE = 8,
  15         ARG_OP = 9,
  16         ARG_LIST = 10,
  17         ARG_RANDPAGE = 11,
  18         ARG_CPU = 12,
  19         ARG_PATHNAME = 13,
  20         ARG_IOVEC = 14,
  21         ARG_IOVECLEN = 15,
  22         ARG_SOCKADDR = 16,
  23         ARG_SOCKADDRLEN = 17,
  24         ARG_MMAP = 18,
  25 };
  26
  27 struct arglist {
  28         unsigned int num;
  29         unsigned long values[32];
  30 };
  31
  32 struct syscallentry {
  33         void (*sanitise)(int childno);
  34         void (*post)(int childno);
  35         int (*init)(void);
  36         char * (*decode)(int argnum, int childno);
  37
  38         unsigned int number;
  39         unsigned int active_number;
  40         const char name[80];
  41         const unsigned int num_args;
  42         unsigned int flags;
  43
  44         const enum argtype arg1type;
  45         const enum argtype arg2type;
  46         const enum argtype arg3type;
  47         const enum argtype arg4type;
  48         const enum argtype arg5type;
  49         const enum argtype arg6type;
  50
  51         const char *arg1name;
  52         const char *arg2name;
  53         const char *arg3name;
  54         const char *arg4name;
  55         const char *arg5name;
  56         const char *arg6name;
  57
  58         /* FIXME: At some point, if we grow more type specific parts here,
  59          * it may be worth union-ising this
  60          */
  61
  62         /* ARG_RANGE */
  63         const unsigned int low1range, hi1range;
  64         const unsigned int low2range, hi2range;
  65         const unsigned int low3range, hi3range;
  66         const unsigned int low4range, hi4range;
  67         const unsigned int low5range, hi5range;
  68         const unsigned int low6range, hi6range;
  69
  70         /* ARG_OP / ARG_LIST */
  71         const struct arglist arg1list;
  72         const struct arglist arg2list;
  73         const struct arglist arg3list;
  74         const struct arglist arg4list;
  75         const struct arglist arg5list;
  76         const struct arglist arg6list;
  77
  78         const unsigned int group;
  79         const int rettype;
  80 };
  81
  82 #define RET_BORING              -1
  83 #define RET_NONE                0
  84 #define RET_ZERO_SUCCESS        1
  85 #define RET_FD                  2
  86 #define RET_KEY_SERIAL_T        3
  87 #define RET_PID_T               4
  88 #define RET_PATH                5
  89 #define RET_NUM_BYTES           6
  90 #define RET_GID_T               7
  91 #define RET_UID_T               8
  92
  93 #define GROUP_NONE      0
  94 #define GROUP_VM        1
  95 #define GROUP_VFS       2
  96
  97 struct syscalltable {
  98         struct syscallentry *entry;
  99 };
 100
 101 #define AVOID_SYSCALL           (1<<0)
 102 #define NI_SYSCALL              (1<<1)
 103 #define BORING                  (1<<2)
 104 #define ACTIVE                  (1<<3)
 105 #define TO_BE_DEACTIVATED       (1<<4)
 106 #define NEED_ALARM              (1<<5)
 107 #define EXTRA_FORK              (1<<6)
 108