ref: 51b862e3da2d706f415254ddf3b6074c59ffbcef
dir: fuzz/fuzz.h
#ifndef FUZZ_H
#define FUZZ_H
#include <u.h>
#include <libc.h>
#include <bio.h>
#include "list.h"
#include "mutate.h"
// Macros
// Sysfatal if not syscall not implemented
#define noimpl() sysfatal("Error: Syscall not implemented!");
// Max signed int value
#define MAXINT 2147483647
// Number of calls in enum calls
#define NCALLS 67
#define NTYPES 16
// Global variables
// In main.c
extern Biobuf* logbp;
extern Biobuf* hjbp;
extern Lock loglck;
extern Lock rnglck;
/*
For full list of syscalls:
If systab doesn't exist → cd /sys/src/9/port && mk
/sys/src/9/port/systab.h
/sys/src/libc/9syscall/sys.h
/sys/include/libc.h:537
*/
// User space syscall definitions as per libc.h with sc_ prefix added
typedef int call;
enum call {
sc__exits, // unused -- here for offset
sc_abort , // abort(void);
sc_access , // access(char*, int);
sc_alarm , // alarm(ulong);
sc_await , // await(char*, int);
sc_bind , // bind(char*, char*, int);
sc_brk , // brk(void*);
sc_chdir , // chdir(char*);
sc_close , // close(int);
sc_create , // create(char*, int, ulong);
sc_dup , // dup(int, int);
sc_errstr , // errstr(char*, uint);
sc_exec , // exec(char*, char*[]);
sc_execl , // execl(char*, ...);
sc_exits , // _exits(char*); // unused
sc_fork , // fork(void);
sc_rfork , // rfork(int);
sc_fauth , // fauth(int, char*);
sc_fstat , // fstat(int, uchar*, int);
sc_fwstat , // fwstat(int, uchar*, int);
sc_fversion, // fversion(int, int, char*, int);
sc_mount , // mount(int, int, char*, int, char*);
sc_unmount, // unmount(char*, char*);
sc_noted , // noted(int);
sc_notify , // notify(void(*)(void*, char*));
sc_open , // open(char*, int);
sc_fd2path, // fd2path(int, char*, int);
sc_pipe , // pipe(int*);
sc_pread , // pread(int, void*, long, vlong);
sc_preadv, // preadv(int, IOchunk*, int, vlong);
sc_pwrite , // pwrite(int, void*, long, vlong);
sc_pwritev, // pwritev(int, IOchunk*, int, vlong);
sc_read , // read(int, void*, long);
sc_readn , // readn(int, void*, long);
sc_readv , // readv(int, IOchunk*, int);
sc_remove, // remove(char*);
sc_sbrk , // sbrk(ulong);
sc_oseek , // oseek(int, long, int);
sc_seek, // seek(int, vlong, int);
sc_segattach, // segattach(int, char*, void*, ulong);
sc_segbrk , // segbrk(void*, void*);
sc_segdetach, // segdetach(void*);
sc_segflush, // segflush(void*, ulong);
sc_segfree, // segfree(void*, ulong);
sc_semacquire, // semacquire(long*, int);
sc_semrelease, // semrelease(long*, long);
sc_sleep, // sleep(long);
sc_stat, // stat(char*, uchar*, int);
sc_tsemacquire, // tsemacquire(long*, ulong);
sc_wait, // wait(void);
sc_waitpid, // waitpid(void);
sc_write, // write(int, void*, long);
sc_writev, // writev(int, IOchunk*, int);
sc_wstat, // wstat(char*, uchar*, int);
sc_rendezvous, // rendezvous(void*, void*);
sc_dirstat, // dirstat(char*);
sc_dirfstat, // dirfstat(int);
sc_dirwstat, // dirwstat(char*, Dir*);
sc_dirfwstat, // dirfwstat(int, Dir*);
sc_dirread, // dirread(int, Dir**);
sc_nulldir, // nulldir(Dir*);
sc_dirreadall, // dirreadall(int, Dir**);
sc_getpid , // getpid(void);
sc_getppid, // getppid(void);
sc_rerrstr, // rerrstr(char*, uint);
sc_sysname, // sysname(void);
sc_werrstr // werrstr(char*, ...);
};
// Enum to track types of inputs
typedef int type;
enum type {
t_int, // int
t_intS, // int pointer
t_uint, // unsigned int
t_IOchunkS, // IOChunkS pointer
t_long, // long
t_longS, // long pointer
t_ulong, // unsigned long
t_vlong, // long long
t_DirS, // directory pointer
t_DirSS, // director pointer to string of chars
t_char, // char
t_uchar, // unsigned char
t_ucharS, // unsigned char pointer
t_charS, // string
t_charSArr, // char pointer array
t_void, // void type
t_voidS // void pointer type
};
// Structure to track an instance of a given type
typedef struct t_type t_type;
struct t_type
{
void* var; // Variable to track
type t; // Type of the variable to cast to
};
// Type names table -- see: input.c
extern char *typenames[NTYPES];
// User space system call names table -- see: input.c
extern char *callnames[NCALLS];
// Structure to track state of system calling
typedef struct caller caller;
struct caller
{
call c; // System call in use
char* name; // Real name of syscall
int round; // Last run executed
int seed; // Seed call was initialized with
List inputs; // List of input types in order from left→right
};
// Index of system calls -- one for each enum'd system call
caller syscalls[NCALLS];
/* == Function prototypes == */
// input.c
void fuzz(caller*);
void hjsync(void);
void log_call(caller*);
// inlist.c
List* mkinlist(List*, call);
// list.c → See list.h
// mutate.c → See mutate.h
// main.c
void dolog(char*, ...);
void debug(char*, ...);
int rng(void);
#endif