| 1 |
/* |
| 2 |
* i-scream central monitoring system |
| 3 |
* http://www.i-scream.org |
| 4 |
* Copyright (C) 2000-2004 i-scream |
| 5 |
* |
| 6 |
* This library is free software; you can redistribute it and/or |
| 7 |
* modify it under the terms of the GNU Lesser General Public |
| 8 |
* License as published by the Free Software Foundation; either |
| 9 |
* version 2.1 of the License, or (at your option) any later version. |
| 10 |
* |
| 11 |
* This library is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 |
* Lesser General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU Lesser General Public |
| 17 |
* License along with this library; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 19 |
* 02111-1307 USA |
| 20 |
* |
| 21 |
* $Id: tools.c,v 1.39 2004/04/05 00:17:40 tdb Exp $ |
| 22 |
*/ |
| 23 |
|
| 24 |
#ifdef HAVE_CONFIG_H |
| 25 |
#include "config.h" |
| 26 |
#endif |
| 27 |
|
| 28 |
#include <stdio.h> |
| 29 |
#include <string.h> |
| 30 |
#include <stdlib.h> |
| 31 |
#include <unistd.h> |
| 32 |
#include <sys/types.h> |
| 33 |
#include <regex.h> |
| 34 |
#ifdef ALLBSD |
| 35 |
#include <fcntl.h> |
| 36 |
#endif |
| 37 |
#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
| 38 |
#include <kvm.h> |
| 39 |
#include <paths.h> |
| 40 |
#endif |
| 41 |
#if defined(NETBSD) || defined(OPENBSD) |
| 42 |
#include <uvm/uvm_extern.h> |
| 43 |
#include <sys/param.h> |
| 44 |
#include <sys/sysctl.h> |
| 45 |
#endif |
| 46 |
|
| 47 |
#include "tools.h" |
| 48 |
|
| 49 |
#ifdef SOLARIS |
| 50 |
#ifdef HAVE_LIBDEVINFO_H |
| 51 |
#include <libdevinfo.h> |
| 52 |
#endif |
| 53 |
#include <kstat.h> |
| 54 |
#include <unistd.h> |
| 55 |
#include <ctype.h> |
| 56 |
#include <sys/types.h> |
| 57 |
#include <sys/dkio.h> |
| 58 |
#include <sys/stat.h> |
| 59 |
#include <fcntl.h> |
| 60 |
#include <sys/fcntl.h> |
| 61 |
#include <dirent.h> |
| 62 |
#endif |
| 63 |
|
| 64 |
#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H) |
| 65 |
struct map{ |
| 66 |
char *bsd; |
| 67 |
char *svr; |
| 68 |
|
| 69 |
struct map *next; |
| 70 |
}; |
| 71 |
typedef struct map mapping_t; |
| 72 |
|
| 73 |
static mapping_t *mapping = NULL; |
| 74 |
#endif |
| 75 |
|
| 76 |
#ifdef SOLARIS |
| 77 |
const char *get_svr_from_bsd(const char *bsd){ |
| 78 |
#ifdef HAVE_LIBDEVINFO_H |
| 79 |
mapping_t *map_ptr; |
| 80 |
for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next) |
| 81 |
if(!strcmp(map_ptr->bsd, bsd)) return map_ptr->svr; |
| 82 |
#endif |
| 83 |
return bsd; |
| 84 |
} |
| 85 |
#endif |
| 86 |
|
| 87 |
#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H) |
| 88 |
void add_mapping(char *bsd, char *svr){ |
| 89 |
mapping_t *map_ptr; |
| 90 |
mapping_t *map_end_ptr; |
| 91 |
|
| 92 |
if (mapping == NULL){ |
| 93 |
mapping = malloc(sizeof(mapping_t)); |
| 94 |
if (mapping == NULL) return; |
| 95 |
map_ptr = mapping; |
| 96 |
}else{ |
| 97 |
/* See if its already been added */ |
| 98 |
for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next){ |
| 99 |
if( (!strcmp(map_ptr->bsd, bsd)) || (!strcmp(map_ptr->svr, svr)) ){ |
| 100 |
return; |
| 101 |
} |
| 102 |
map_end_ptr = map_ptr; |
| 103 |
} |
| 104 |
|
| 105 |
/* We've reached end of list and not found the entry.. So we need to malloc |
| 106 |
* new mapping_t |
| 107 |
*/ |
| 108 |
map_end_ptr->next = malloc(sizeof(mapping_t)); |
| 109 |
if (map_end_ptr->next == NULL) return; |
| 110 |
map_ptr = map_end_ptr->next; |
| 111 |
} |
| 112 |
|
| 113 |
map_ptr->next = NULL; |
| 114 |
map_ptr->bsd = strdup(bsd); |
| 115 |
map_ptr->svr = strdup(svr); |
| 116 |
|
| 117 |
return; |
| 118 |
} |
| 119 |
|
| 120 |
char *read_dir(char *disk_path){ |
| 121 |
DIR *dirp; |
| 122 |
struct dirent *dp; |
| 123 |
struct stat stbuf; |
| 124 |
char *svr_name; |
| 125 |
char current_dir[MAXPATHLEN]; |
| 126 |
char file_name[MAXPATHLEN]; |
| 127 |
char temp_name[MAXPATHLEN]; |
| 128 |
char dir_dname[MAXPATHLEN]; |
| 129 |
char *dsk_dir; |
| 130 |
int x; |
| 131 |
|
| 132 |
dsk_dir = "/dev/osa/dev/dsk"; |
| 133 |
strncpy(current_dir, dsk_dir, sizeof current_dir); |
| 134 |
if ((dirp = opendir(current_dir)) == NULL){ |
| 135 |
dsk_dir = "/dev/dsk"; |
| 136 |
snprintf(current_dir, sizeof current_dir, "%s", dsk_dir); |
| 137 |
if ((dirp = opendir(current_dir)) == NULL){ |
| 138 |
return NULL; |
| 139 |
} |
| 140 |
} |
| 141 |
|
| 142 |
while ((dp = readdir(dirp)) != NULL){ |
| 143 |
snprintf(temp_name, sizeof temp_name, "../..%s", disk_path); |
| 144 |
snprintf(dir_dname, sizeof dir_dname, "%s/%s", dsk_dir, dp->d_name); |
| 145 |
stat(dir_dname,&stbuf); |
| 146 |
|
| 147 |
if (S_ISBLK(stbuf.st_mode)){ |
| 148 |
x = readlink(dir_dname, file_name, sizeof(file_name)); |
| 149 |
file_name[x] = '\0'; |
| 150 |
if (strcmp(file_name, temp_name) == 0) { |
| 151 |
svr_name = strdup(dp->d_name); |
| 152 |
closedir(dirp); |
| 153 |
return svr_name; |
| 154 |
} |
| 155 |
} |
| 156 |
} |
| 157 |
closedir(dirp); |
| 158 |
return NULL; |
| 159 |
} |
| 160 |
|
| 161 |
|
| 162 |
|
| 163 |
int get_alias(char *alias){ |
| 164 |
char file[MAXPATHLEN]; |
| 165 |
di_node_t root_node; |
| 166 |
di_node_t node; |
| 167 |
di_minor_t minor = DI_MINOR_NIL; |
| 168 |
char tmpnode[MAXPATHLEN]; |
| 169 |
char *phys_path; |
| 170 |
char *minor_name; |
| 171 |
char *value; |
| 172 |
int instance; |
| 173 |
if ((root_node = di_init("/", DINFOCPYALL)) == DI_NODE_NIL) { |
| 174 |
return 1; |
| 175 |
} |
| 176 |
node = di_drv_first_node(alias, root_node); |
| 177 |
while (node != DI_NODE_NIL) { |
| 178 |
if ((minor = di_minor_next(node, DI_MINOR_NIL)) != DI_MINOR_NIL) { |
| 179 |
instance = di_instance(node); |
| 180 |
phys_path = di_devfs_path(node); |
| 181 |
minor_name = di_minor_name(minor); |
| 182 |
strcpy(tmpnode, alias); |
| 183 |
sprintf(tmpnode, "%s%d", tmpnode, instance); |
| 184 |
strlcpy(file, "/devices", sizeof file); |
| 185 |
strlcat(file, phys_path, sizeof file); |
| 186 |
strlcat(file, ":", sizeof file); |
| 187 |
strlcat(file, minor_name, sizeof file); |
| 188 |
value = read_dir(file); |
| 189 |
if (value != NULL){ |
| 190 |
add_mapping(tmpnode, value); |
| 191 |
} |
| 192 |
di_devfs_path_free(phys_path); |
| 193 |
node = di_drv_next_node(node); |
| 194 |
}else{ |
| 195 |
node = di_drv_next_node(node); |
| 196 |
} |
| 197 |
} |
| 198 |
di_fini(root_node); |
| 199 |
return 0; |
| 200 |
} |
| 201 |
|
| 202 |
|
| 203 |
#define BIG_ENOUGH 512 |
| 204 |
int build_mapping(){ |
| 205 |
char device_name[BIG_ENOUGH]; |
| 206 |
int x; |
| 207 |
kstat_ctl_t *kc; |
| 208 |
kstat_t *ksp; |
| 209 |
kstat_io_t kios; |
| 210 |
|
| 211 |
char driver_list[BIG_ENOUGH][BIG_ENOUGH]; |
| 212 |
int list_entries = 0; |
| 213 |
int found; |
| 214 |
|
| 215 |
if ((kc = kstat_open()) == NULL) { |
| 216 |
return 1; |
| 217 |
} |
| 218 |
|
| 219 |
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
| 220 |
if (!strcmp(ksp->ks_class, "disk")) { |
| 221 |
if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
| 222 |
/* We dont want metadevices appearing as num_diskio */ |
| 223 |
if(strcmp(ksp->ks_module, "md")==0) continue; |
| 224 |
if((kstat_read(kc, ksp, &kios))==-1) continue; |
| 225 |
strncpy(device_name, ksp->ks_name, sizeof device_name); |
| 226 |
for(x=0;x<(sizeof device_name);x++){ |
| 227 |
if( isdigit((int)device_name[x]) ) break; |
| 228 |
} |
| 229 |
if(x == sizeof device_name) x--; |
| 230 |
device_name[x] = '\0'; |
| 231 |
|
| 232 |
/* Check if we've not already looked it up */ |
| 233 |
found = 0; |
| 234 |
for(x=0;x<list_entries;x++){ |
| 235 |
if (x>=BIG_ENOUGH){ |
| 236 |
/* We've got bigger than we thought was massive */ |
| 237 |
/* If we hit this.. Make big enough bigger */ |
| 238 |
return 1; |
| 239 |
} |
| 240 |
if( !strncmp(driver_list[x], device_name, BIG_ENOUGH)){ |
| 241 |
found = 1; |
| 242 |
break; |
| 243 |
} |
| 244 |
} |
| 245 |
|
| 246 |
if(!found){ |
| 247 |
if((get_alias(device_name)) != 0){ |
| 248 |
return 1; |
| 249 |
} |
| 250 |
strncpy(driver_list[x], device_name, BIG_ENOUGH); |
| 251 |
list_entries++; |
| 252 |
} |
| 253 |
} |
| 254 |
} |
| 255 |
|
| 256 |
return 0; |
| 257 |
} |
| 258 |
|
| 259 |
#endif |
| 260 |
|
| 261 |
|
| 262 |
|
| 263 |
char *f_read_line(FILE *f, const char *string){ |
| 264 |
/* Max line length. 8k should be more than enough */ |
| 265 |
static char line[8192]; |
| 266 |
|
| 267 |
while((fgets(line, sizeof(line), f))!=NULL){ |
| 268 |
if(strncmp(string, line, strlen(string))==0){ |
| 269 |
return line; |
| 270 |
} |
| 271 |
} |
| 272 |
|
| 273 |
return NULL; |
| 274 |
} |
| 275 |
|
| 276 |
char *get_string_match(char *line, regmatch_t *match){ |
| 277 |
int len=match->rm_eo - match->rm_so; |
| 278 |
char *match_string=malloc(len+1); |
| 279 |
|
| 280 |
match_string=strncpy(match_string, line+match->rm_so, len); |
| 281 |
match_string[len]='\0'; |
| 282 |
|
| 283 |
return match_string; |
| 284 |
} |
| 285 |
|
| 286 |
|
| 287 |
|
| 288 |
#ifndef HAVE_ATOLL |
| 289 |
static long long atoll(const char *s) { |
| 290 |
long long value = 0; |
| 291 |
int isneg = 0; |
| 292 |
|
| 293 |
while (*s == ' ' || *s == '\t') { |
| 294 |
s++; |
| 295 |
} |
| 296 |
if (*s == '-') { |
| 297 |
isneg = 1; |
| 298 |
s++; |
| 299 |
} |
| 300 |
while (*s >= '0' && *s <= '9') { |
| 301 |
value = (10 * value) + (*s - '0'); |
| 302 |
s++; |
| 303 |
} |
| 304 |
return (isneg ? -value : value); |
| 305 |
} |
| 306 |
#endif |
| 307 |
|
| 308 |
#ifndef HAVE_STRLCPY |
| 309 |
/* $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $ */ |
| 310 |
|
| 311 |
/* |
| 312 |
* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> |
| 313 |
* |
| 314 |
* Permission to use, copy, modify, and distribute this software for any |
| 315 |
* purpose with or without fee is hereby granted, provided that the above |
| 316 |
* copyright notice and this permission notice appear in all copies. |
| 317 |
* |
| 318 |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 319 |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 320 |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 321 |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 322 |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 323 |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 324 |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 325 |
*/ |
| 326 |
|
| 327 |
/* |
| 328 |
* Copy src to string dst of size siz. At most siz-1 characters |
| 329 |
* will be copied. Always NUL terminates (unless siz == 0). |
| 330 |
* Returns strlen(src); if retval >= siz, truncation occurred. |
| 331 |
*/ |
| 332 |
size_t strlcpy(char *dst, const char *src, size_t siz){ |
| 333 |
register char *d = dst; |
| 334 |
register const char *s = src; |
| 335 |
register size_t n = siz; |
| 336 |
|
| 337 |
/* Copy as many bytes as will fit */ |
| 338 |
if (n != 0 && --n != 0) { |
| 339 |
do { |
| 340 |
if ((*d++ = *s++) == 0) |
| 341 |
break; |
| 342 |
} while (--n != 0); |
| 343 |
} |
| 344 |
|
| 345 |
/* Not enough room in dst, add NUL and traverse rest of src */ |
| 346 |
if (n == 0) { |
| 347 |
if (siz != 0) |
| 348 |
*d = '\0'; /* NUL-terminate dst */ |
| 349 |
while (*s++) |
| 350 |
; |
| 351 |
} |
| 352 |
|
| 353 |
return(s - src - 1); /* count does not include NUL */ |
| 354 |
} |
| 355 |
#endif |
| 356 |
|
| 357 |
#ifndef HAVE_STRLCAT |
| 358 |
/* $OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $ */ |
| 359 |
|
| 360 |
/* |
| 361 |
* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> |
| 362 |
* |
| 363 |
* Permission to use, copy, modify, and distribute this software for any |
| 364 |
* purpose with or without fee is hereby granted, provided that the above |
| 365 |
* copyright notice and this permission notice appear in all copies. |
| 366 |
* |
| 367 |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 368 |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 369 |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 370 |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 371 |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 372 |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 373 |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 374 |
*/ |
| 375 |
|
| 376 |
/* |
| 377 |
* Appends src to string dst of size siz (unlike strncat, siz is the |
| 378 |
* full size of dst, not space left). At most siz-1 characters |
| 379 |
* will be copied. Always NUL terminates (unless siz <= strlen(dst)). |
| 380 |
* Returns strlen(src) + MIN(siz, strlen(initial dst)). |
| 381 |
* If retval >= siz, truncation occurred. |
| 382 |
*/ |
| 383 |
size_t strlcat(char *dst, const char *src, size_t siz){ |
| 384 |
register char *d = dst; |
| 385 |
register const char *s = src; |
| 386 |
register size_t n = siz; |
| 387 |
size_t dlen; |
| 388 |
|
| 389 |
/* Find the end of dst and adjust bytes left but don't go past end */ |
| 390 |
while (n-- != 0 && *d != '\0') |
| 391 |
d++; |
| 392 |
dlen = d - dst; |
| 393 |
n = siz - dlen; |
| 394 |
|
| 395 |
if (n == 0) |
| 396 |
return(dlen + strlen(s)); |
| 397 |
while (*s != '\0') { |
| 398 |
if (n != 1) { |
| 399 |
*d++ = *s; |
| 400 |
n--; |
| 401 |
} |
| 402 |
s++; |
| 403 |
} |
| 404 |
*d = '\0'; |
| 405 |
|
| 406 |
return(dlen + (s - src)); /* count does not include NUL */ |
| 407 |
} |
| 408 |
|
| 409 |
#endif |
| 410 |
|
| 411 |
char *update_string(char **dest, const char *src) { |
| 412 |
char *new; |
| 413 |
|
| 414 |
new = realloc(*dest, strlen(src) + 1); |
| 415 |
if (new == NULL) { |
| 416 |
return NULL; |
| 417 |
} |
| 418 |
|
| 419 |
strcpy(new, src); |
| 420 |
*dest = new; |
| 421 |
return new; |
| 422 |
} |
| 423 |
|
| 424 |
long long get_ll_match(char *line, regmatch_t *match){ |
| 425 |
char *ptr; |
| 426 |
long long num; |
| 427 |
|
| 428 |
ptr=line+match->rm_so; |
| 429 |
num=atoll(ptr); |
| 430 |
|
| 431 |
return num; |
| 432 |
} |
| 433 |
|
| 434 |
#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
| 435 |
kvm_t *get_kvm() { |
| 436 |
static kvm_t *kvmd = NULL; |
| 437 |
|
| 438 |
if (kvmd != NULL) { |
| 439 |
return kvmd; |
| 440 |
} |
| 441 |
|
| 442 |
kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL); |
| 443 |
return kvmd; |
| 444 |
} |
| 445 |
|
| 446 |
/* Can't think of a better name for this function */ |
| 447 |
kvm_t *get_kvm2() { |
| 448 |
static kvm_t *kvmd2 = NULL; |
| 449 |
|
| 450 |
if (kvmd2 != NULL) { |
| 451 |
return kvmd2; |
| 452 |
} |
| 453 |
|
| 454 |
kvmd2 = kvm_openfiles(_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL); |
| 455 |
return kvmd2; |
| 456 |
} |
| 457 |
#endif |
| 458 |
|
| 459 |
#if defined(NETBSD) || defined(OPENBSD) |
| 460 |
struct uvmexp *get_uvmexp() { |
| 461 |
int mib[2]; |
| 462 |
size_t size; |
| 463 |
static struct uvmexp *uvm = NULL; |
| 464 |
struct uvmexp *new; |
| 465 |
|
| 466 |
mib[0] = CTL_VM; |
| 467 |
mib[1] = VM_UVMEXP; |
| 468 |
|
| 469 |
if (sysctl(mib, 2, NULL, &size, NULL, 0) < 0) { |
| 470 |
return NULL; |
| 471 |
} |
| 472 |
|
| 473 |
new = realloc(uvm, size); |
| 474 |
if (new == NULL) { |
| 475 |
return NULL; |
| 476 |
} |
| 477 |
uvm = new; |
| 478 |
|
| 479 |
if (sysctl(mib, 2, uvm, &size, NULL, 0) < 0) { |
| 480 |
return NULL; |
| 481 |
} |
| 482 |
|
| 483 |
return uvm; |
| 484 |
} |
| 485 |
#endif |
| 486 |
|
| 487 |
int statgrab_init(){ |
| 488 |
#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
| 489 |
{ |
| 490 |
kvm_t *kvmd = get_kvm(); |
| 491 |
if (kvmd == NULL) return 1; |
| 492 |
} |
| 493 |
{ |
| 494 |
kvm_t *kvmd2 = get_kvm2(); |
| 495 |
if (kvmd2 == NULL) return 1; |
| 496 |
} |
| 497 |
#endif |
| 498 |
#if defined(NETBSD) || defined(OPENBSD) |
| 499 |
{ |
| 500 |
/* This should always succeed, but it seems that on some |
| 501 |
* versions of NetBSD the first call to get_uvmexp will return |
| 502 |
* a non-filled-in structure; this is a workaround for that. |
| 503 |
*/ |
| 504 |
struct uvmexp *uvm = get_uvmexp(); |
| 505 |
if (uvm == NULL) return 1; |
| 506 |
} |
| 507 |
#endif |
| 508 |
#ifdef SOLARIS |
| 509 |
/* On solaris 7, this will fail if you are not root. But, everything |
| 510 |
* will still work, just no disk mappings. So we will ignore the exit |
| 511 |
* status of this, and carry on merrily. |
| 512 |
*/ |
| 513 |
#ifdef HAVE_LIBDEVINFO_H |
| 514 |
build_mapping(); |
| 515 |
#endif |
| 516 |
#endif |
| 517 |
return 0; |
| 518 |
} |
| 519 |
|
| 520 |
int statgrab_drop_privileges() { |
| 521 |
if (setegid(getgid()) != 0) return -1; |
| 522 |
if (seteuid(getuid()) != 0) return -1; |
| 523 |
return 0; |
| 524 |
} |
| 525 |
|
