1 /* 2 * Copyright (c) 1998 Michael Smith. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 * From $NetBSD: stand.h,v 1.22 1997/06/26 19:17:40 drochner Exp $ 28 */ 29 30 /*- 31 * Copyright (c) 1993 32 * The Regents of the University of California. All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. Neither the name of the University nor the names of its contributors 43 * may be used to endorse or promote products derived from this software 44 * without specific prior written permission. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 49 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 56 * SUCH DAMAGE. 57 * 58 * @(#)stand.h 8.1 (Berkeley) 6/11/93 59 */ 60 61 #ifndef STAND_H 62 #define STAND_H 63 64 #include <sys/types.h> 65 #include <sys/cdefs.h> 66 #include <sys/stat.h> 67 #include <sys/dirent.h> 68 #include <sys/queue.h> 69 70 /* this header intentionally exports NULL from <string.h> */ 71 #include <string.h> 72 #define strcoll(a, b) strcmp((a), (b)) 73 74 #define CHK(fmt, args...) printf("%s(%d): " fmt "\n", __func__, __LINE__ , ##args) 75 #define PCHK(fmt, args...) {printf("%s(%d): " fmt "\n", __func__, __LINE__ , ##args); getchar();} 76 77 #include <sys/errno.h> 78 79 /* special stand error codes */ 80 #define EADAPT (ELAST+1) /* bad adaptor */ 81 #define ECTLR (ELAST+2) /* bad controller */ 82 #define EUNIT (ELAST+3) /* bad unit */ 83 #define ESLICE (ELAST+4) /* bad slice */ 84 #define EPART (ELAST+5) /* bad partition */ 85 #define ERDLAB (ELAST+6) /* can't read disk label */ 86 #define EUNLAB (ELAST+7) /* unlabeled disk */ 87 #define EOFFSET (ELAST+8) /* relative seek not supported */ 88 #define ESALAST (ELAST+8) /* */ 89 90 /* Partial signal emulation for sig_atomic_t */ 91 #include <machine/signal.h> 92 93 struct open_file; 94 95 /* 96 * This structure is used to define file system operations in a file system 97 * independent way. 98 * 99 * XXX note that filesystem providers should export a pointer to their fs_ops 100 * struct, so that consumers can reference this and thus include the 101 * filesystems that they require. 102 */ 103 struct fs_ops { 104 const char *fs_name; 105 int (*fo_open)(const char *path, struct open_file *f); 106 int (*fo_close)(struct open_file *f); 107 int (*fo_read)(struct open_file *f, void *buf, 108 size_t size, size_t *resid); 109 int (*fo_write)(struct open_file *f, const void *buf, 110 size_t size, size_t *resid); 111 off_t (*fo_seek)(struct open_file *f, off_t offset, int where); 112 int (*fo_stat)(struct open_file *f, struct stat *sb); 113 int (*fo_readdir)(struct open_file *f, struct dirent *d); 114 }; 115 116 /* 117 * libstand-supplied filesystems 118 */ 119 extern struct fs_ops ufs_fsops; 120 extern struct fs_ops tftp_fsops; 121 extern struct fs_ops nfs_fsops; 122 extern struct fs_ops cd9660_fsops; 123 extern struct fs_ops gzipfs_fsops; 124 extern struct fs_ops bzipfs_fsops; 125 extern struct fs_ops dosfs_fsops; 126 extern struct fs_ops ext2fs_fsops; 127 extern struct fs_ops splitfs_fsops; 128 extern struct fs_ops pkgfs_fsops; 129 extern struct fs_ops efihttp_fsops; 130 131 /* where values for lseek(2) */ 132 #define SEEK_SET 0 /* set file offset to offset */ 133 #define SEEK_CUR 1 /* set file offset to current plus offset */ 134 #define SEEK_END 2 /* set file offset to EOF plus offset */ 135 136 /* 137 * Device switch 138 */ 139 struct devsw { 140 const char dv_name[8]; 141 int dv_type; /* opaque type constant, arch-dependant */ 142 #define DEVT_NONE 0 143 #define DEVT_DISK 1 144 #define DEVT_NET 2 145 #define DEVT_CD 3 146 #define DEVT_ZFS 4 147 #define DEVT_FD 5 148 int (*dv_init)(void); /* early probe call */ 149 int (*dv_strategy)(void *devdata, int rw, daddr_t blk, 150 size_t size, char *buf, size_t *rsize); 151 int (*dv_open)(struct open_file *f, ...); 152 int (*dv_close)(struct open_file *f); 153 int (*dv_ioctl)(struct open_file *f, u_long cmd, void *data); 154 int (*dv_print)(int verbose); /* print device information */ 155 void (*dv_cleanup)(void); 156 }; 157 158 /* 159 * libstand-supplied device switch 160 */ 161 extern struct devsw netdev; 162 163 extern int errno; 164 165 /* 166 * Generic device specifier; architecture-dependent 167 * versions may be larger, but should be allowed to 168 * overlap. 169 */ 170 struct devdesc { 171 struct devsw *d_dev; 172 int d_unit; 173 void *d_opendata; 174 }; 175 176 struct open_file { 177 int f_flags; /* see F_* below */ 178 struct devsw *f_dev; /* pointer to device operations */ 179 void *f_devdata; /* device specific data */ 180 struct fs_ops *f_ops; /* pointer to file system operations */ 181 void *f_fsdata; /* file system specific data */ 182 off_t f_offset; /* current file offset */ 183 char *f_rabuf; /* readahead buffer pointer */ 184 size_t f_ralen; /* valid data in readahead buffer */ 185 off_t f_raoffset; /* consumer offset in readahead buffer */ 186 int f_id; /* file number */ 187 TAILQ_ENTRY(open_file) f_link; /* next entry */ 188 #define SOPEN_RASIZE 512 189 }; 190 191 typedef TAILQ_HEAD(file_list, open_file) file_list_t; 192 extern file_list_t files; 193 extern struct open_file *fd2open_file(int); 194 195 /* f_flags values */ 196 #define F_READ 0x0001 /* file opened for reading */ 197 #define F_WRITE 0x0002 /* file opened for writing */ 198 #define F_RAW 0x0004 /* raw device open - no file system */ 199 #define F_NODEV 0x0008 /* network open - no device */ 200 #define F_MASK 0xFFFF 201 /* Mode modifier for strategy() */ 202 #define F_NORA (0x01 << 16) /* Disable Read-Ahead */ 203 204 #define isascii(c) (((c) & ~0x7F) == 0) 205 206 static __inline int isupper(int c) 207 { 208 return c >= 'A' && c <= 'Z'; 209 } 210 211 static __inline int islower(int c) 212 { 213 return c >= 'a' && c <= 'z'; 214 } 215 216 static __inline int isspace(int c) 217 { 218 return c == ' ' || (c >= 0x9 && c <= 0xd); 219 } 220 221 static __inline int isdigit(int c) 222 { 223 return c >= '0' && c <= '9'; 224 } 225 226 static __inline int isxdigit(int c) 227 { 228 return isdigit(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'); 229 } 230 231 static __inline int isalpha(int c) 232 { 233 return isupper(c) || islower(c); 234 } 235 236 static __inline int isalnum(int c) 237 { 238 return isalpha(c) || isdigit(c); 239 } 240 241 static __inline int iscntrl(int c) 242 { 243 return (c >= 0 && c < ' ') || c == 127; 244 } 245 246 static __inline int isgraph(int c) 247 { 248 return c >= '!' && c <= '~'; 249 } 250 251 static __inline int ispunct(int c) 252 { 253 return (c >= '!' && c <= '/') || (c >= ':' && c <= '@') || 254 (c >= '[' && c <= '`') || (c >= '{' && c <= '~'); 255 } 256 257 static __inline int toupper(int c) 258 { 259 return islower(c) ? c - 'a' + 'A' : c; 260 } 261 262 static __inline int tolower(int c) 263 { 264 return isupper(c) ? c - 'A' + 'a' : c; 265 } 266 267 /* sbrk emulation */ 268 extern void setheap(void *base, void *top); 269 extern char *sbrk(int incr); 270 271 extern int printf(const char *fmt, ...) __printflike(1, 2); 272 extern int asprintf(char **buf, const char *cfmt, ...) __printflike(2, 3); 273 extern int sprintf(char *buf, const char *cfmt, ...) __printflike(2, 3); 274 extern int snprintf(char *buf, size_t size, const char *cfmt, ...) __printflike(3, 4); 275 extern int vprintf(const char *fmt, __va_list); 276 extern int vsprintf(char *buf, const char *cfmt, __va_list); 277 extern int vsnprintf(char *buf, size_t size, const char *cfmt, __va_list); 278 279 extern void twiddle(u_int callerdiv); 280 extern void twiddle_divisor(u_int globaldiv); 281 282 extern void ngets(char *, int); 283 #define gets(x) ngets((x), 0) 284 extern int fgetstr(char *buf, int size, int fd); 285 286 extern int open(const char *, int); 287 #define O_RDONLY 0x0 288 #define O_WRONLY 0x1 289 #define O_RDWR 0x2 290 #define O_ACCMODE 0x3 291 /* NOT IMPLEMENTED */ 292 #define O_CREAT 0x0200 /* create if nonexistent */ 293 #define O_TRUNC 0x0400 /* truncate to zero length */ 294 extern int close(int); 295 extern void closeall(void); 296 extern ssize_t read(int, void *, size_t); 297 extern ssize_t write(int, const void *, size_t); 298 extern struct dirent *readdirfd(int); 299 300 extern void srandom(unsigned int); 301 extern long random(void); 302 303 /* imports from stdlib, locally modified */ 304 extern char *optarg; /* getopt(3) external variables */ 305 extern int optind, opterr, optopt, optreset; 306 extern int getopt(int, char * const [], const char *); 307 308 /* pager.c */ 309 extern void pager_open(void); 310 extern void pager_close(void); 311 extern int pager_output(const char *lines); 312 extern int pager_file(const char *fname); 313 314 /* No signal state to preserve */ 315 #define setjmp _setjmp 316 #define longjmp _longjmp 317 318 /* environment.c */ 319 #define EV_DYNAMIC (1<<0) /* value was dynamically allocated, free if changed/unset */ 320 #define EV_VOLATILE (1<<1) /* value is volatile, make a copy of it */ 321 #define EV_NOHOOK (1<<2) /* don't call hook when setting */ 322 323 struct env_var; 324 typedef char *(ev_format_t)(struct env_var *ev); 325 typedef int (ev_sethook_t)(struct env_var *ev, int flags, 326 const void *value); 327 typedef int (ev_unsethook_t)(struct env_var *ev); 328 329 struct env_var 330 { 331 char *ev_name; 332 int ev_flags; 333 void *ev_value; 334 ev_sethook_t *ev_sethook; 335 ev_unsethook_t *ev_unsethook; 336 struct env_var *ev_next, *ev_prev; 337 }; 338 extern struct env_var *environ; 339 340 extern struct env_var *env_getenv(const char *name); 341 extern int env_setenv(const char *name, int flags, 342 const void *value, ev_sethook_t sethook, 343 ev_unsethook_t unsethook); 344 extern void env_discard(struct env_var *); 345 extern char *getenv(const char *name); 346 extern int setenv(const char *name, const char *value, 347 int overwrite); 348 extern int putenv(char *string); 349 extern int unsetenv(const char *name); 350 351 extern ev_sethook_t env_noset; /* refuse set operation */ 352 extern ev_unsethook_t env_nounset; /* refuse unset operation */ 353 354 /* stdlib.h routines */ 355 extern int abs(int a); 356 extern void abort(void) __dead2; 357 extern long strtol(const char * __restrict, char ** __restrict, int); 358 extern long long strtoll(const char * __restrict, char ** __restrict, int); 359 extern unsigned long strtoul(const char * __restrict, char ** __restrict, int); 360 extern unsigned long long strtoull(const char * __restrict, char ** __restrict, int); 361 362 /* BCD conversions (undocumented) */ 363 extern u_char const bcd2bin_data[]; 364 extern u_char const bin2bcd_data[]; 365 extern char const hex2ascii_data[]; 366 367 #define bcd2bin(bcd) (bcd2bin_data[bcd]) 368 #define bin2bcd(bin) (bin2bcd_data[bin]) 369 #define hex2ascii(hex) (hex2ascii_data[hex]) 370 #define validbcd(bcd) (bcd == 0 || (bcd > 0 && bcd <= 0x99 && bcd2bin_data[bcd] != 0)) 371 372 /* min/max (undocumented) */ 373 static __inline int imax(int a, int b) { return (a > b ? a : b); } 374 static __inline int imin(int a, int b) { return (a < b ? a : b); } 375 static __inline long lmax(long a, long b) { return (a > b ? a : b); } 376 static __inline long lmin(long a, long b) { return (a < b ? a : b); } 377 static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); } 378 static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); } 379 static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); } 380 static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); } 381 static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); } 382 static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); } 383 384 /* null functions for device/filesystem switches (undocumented) */ 385 extern int nodev(void); 386 extern int noioctl(struct open_file *, u_long, void *); 387 extern void nullsys(void); 388 389 extern int null_open(const char *path, struct open_file *f); 390 extern int null_close(struct open_file *f); 391 extern int null_read(struct open_file *f, void *buf, size_t size, size_t *resid); 392 extern int null_write(struct open_file *f, const void *buf, size_t size, size_t *resid); 393 extern off_t null_seek(struct open_file *f, off_t offset, int where); 394 extern int null_stat(struct open_file *f, struct stat *sb); 395 extern int null_readdir(struct open_file *f, struct dirent *d); 396 397 398 /* 399 * Machine dependent functions and data, must be provided or stubbed by 400 * the consumer 401 */ 402 extern void exit(int) __dead2; 403 extern int getchar(void); 404 extern int ischar(void); 405 extern void putchar(int); 406 extern int devopen(struct open_file *, const char *, const char **); 407 extern int devclose(struct open_file *f); 408 extern void panic(const char *, ...) __dead2 __printflike(1, 2); 409 extern void panic_action(void) __weak_symbol __dead2; 410 extern time_t getsecs(void); 411 extern struct fs_ops *file_system[]; 412 extern struct fs_ops *exclusive_file_system; 413 extern struct devsw *devsw[]; 414 415 /* 416 * Time routines 417 */ 418 time_t time(time_t *); 419 420 /* 421 * Expose byteorder(3) functions. 422 */ 423 #ifndef _BYTEORDER_PROTOTYPED 424 #define _BYTEORDER_PROTOTYPED 425 extern uint32_t htonl(uint32_t); 426 extern uint16_t htons(uint16_t); 427 extern uint32_t ntohl(uint32_t); 428 extern uint16_t ntohs(uint16_t); 429 #endif 430 431 #ifndef _BYTEORDER_FUNC_DEFINED 432 #define _BYTEORDER_FUNC_DEFINED 433 #define htonl(x) __htonl(x) 434 #define htons(x) __htons(x) 435 #define ntohl(x) __ntohl(x) 436 #define ntohs(x) __ntohs(x) 437 #endif 438 439 void *Malloc(size_t, const char *, int); 440 void *Memalign(size_t, size_t, const char *, int); 441 void *Calloc(size_t, size_t, const char *, int); 442 void *Realloc(void *, size_t, const char *, int); 443 void *Reallocf(void *, size_t, const char *, int); 444 void Free(void *, const char *, int); 445 extern void mallocstats(void); 446 447 const char *x86_hypervisor(void); 448 449 #ifdef USER_MALLOC 450 extern void *malloc(size_t); 451 extern void *memalign(size_t, size_t); 452 extern void *calloc(size_t, size_t); 453 extern void free(void *); 454 extern void *realloc(void *, size_t); 455 extern void *reallocf(void *, size_t); 456 #elif defined(DEBUG_MALLOC) 457 #define malloc(x) Malloc(x, __FILE__, __LINE__) 458 #define memalign(x, y) Memalign(x, y, __FILE__, __LINE__) 459 #define calloc(x, y) Calloc(x, y, __FILE__, __LINE__) 460 #define free(x) Free(x, __FILE__, __LINE__) 461 #define realloc(x, y) Realloc(x, y, __FILE__, __LINE__) 462 #define reallocf(x, y) Reallocf(x, y, __FILE__, __LINE__) 463 #else 464 #define malloc(x) Malloc(x, NULL, 0) 465 #define memalign(x, y) Memalign(x, y, NULL, 0) 466 #define calloc(x, y) Calloc(x, y, NULL, 0) 467 #define free(x) Free(x, NULL, 0) 468 #define realloc(x, y) Realloc(x, y, NULL, 0) 469 #define reallocf(x, y) Reallocf(x, y, NULL, 0) 470 #endif 471 472 /* 473 * va <-> pa routines. MD code must supply. 474 */ 475 caddr_t ptov(uintptr_t); 476 477 /* hexdump.c */ 478 void hexdump(caddr_t region, size_t len); 479 480 /* tslog.c */ 481 #define TSRAW(a, b, c) tslog(a, b, c) 482 #define TSENTER() TSRAW("ENTER", __func__, NULL) 483 #define TSEXIT() TSRAW("EXIT", __func__, NULL) 484 #define TSLINE() TSRAW("EVENT", __FILE__, __XSTRING(__LINE__)) 485 void tslog(const char *, const char *, const char *); 486 void tslog_setbuf(void * buf, size_t len); 487 void tslog_getbuf(void ** buf, size_t * len); 488 489 #endif /* STAND_H */ 490