| 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: network_stats.c,v 1.31 2004/02/13 15:12:26 ats Exp $ |
| 22 |
*/ |
| 23 |
|
| 24 |
#ifdef HAVE_CONFIG_H |
| 25 |
#include "config.h" |
| 26 |
#endif |
| 27 |
|
| 28 |
#include <stdlib.h> |
| 29 |
#include <string.h> |
| 30 |
#include "statgrab.h" |
| 31 |
#include <time.h> |
| 32 |
#ifdef SOLARIS |
| 33 |
#include <kstat.h> |
| 34 |
#include <sys/sysinfo.h> |
| 35 |
#endif |
| 36 |
#ifdef LINUX |
| 37 |
#include <stdio.h> |
| 38 |
#include <sys/types.h> |
| 39 |
#include <regex.h> |
| 40 |
#include <sys/ioctl.h> |
| 41 |
#include <sys/socket.h> |
| 42 |
#include <net/if.h> |
| 43 |
#include <ctype.h> |
| 44 |
#include "tools.h" |
| 45 |
/* Stuff which could be defined by defining KERNEL, but |
| 46 |
* that would be a bad idea, so we'll just declare it here |
| 47 |
*/ |
| 48 |
typedef __uint8_t u8; |
| 49 |
typedef __uint16_t u16; |
| 50 |
typedef __uint32_t u32; |
| 51 |
#include <linux/ethtool.h> |
| 52 |
#include <linux/sockios.h> |
| 53 |
#include <unistd.h> |
| 54 |
#endif |
| 55 |
#ifdef ALLBSD |
| 56 |
#include <sys/types.h> |
| 57 |
#include <sys/socket.h> |
| 58 |
#include <ifaddrs.h> |
| 59 |
#include <net/if.h> |
| 60 |
#include <net/if_media.h> |
| 61 |
#include <sys/ioctl.h> |
| 62 |
#endif |
| 63 |
|
| 64 |
static network_stat_t *network_stats=NULL; |
| 65 |
static int interfaces=0; |
| 66 |
|
| 67 |
void network_stat_init(int start, int end, network_stat_t *net_stats){ |
| 68 |
|
| 69 |
for(net_stats+=start; start<end; start++){ |
| 70 |
net_stats->interface_name=NULL; |
| 71 |
net_stats->tx=0; |
| 72 |
net_stats->rx=0; |
| 73 |
net_stats++; |
| 74 |
} |
| 75 |
} |
| 76 |
|
| 77 |
network_stat_t *network_stat_malloc(int needed_entries, int *cur_entries, network_stat_t *net_stats){ |
| 78 |
|
| 79 |
if(net_stats==NULL){ |
| 80 |
|
| 81 |
if((net_stats=malloc(needed_entries * sizeof(network_stat_t)))==NULL){ |
| 82 |
return NULL; |
| 83 |
} |
| 84 |
network_stat_init(0, needed_entries, net_stats); |
| 85 |
*cur_entries=needed_entries; |
| 86 |
|
| 87 |
return net_stats; |
| 88 |
} |
| 89 |
|
| 90 |
|
| 91 |
if(*cur_entries<needed_entries){ |
| 92 |
net_stats=realloc(net_stats, (sizeof(network_stat_t)*needed_entries)); |
| 93 |
if(net_stats==NULL){ |
| 94 |
return NULL; |
| 95 |
} |
| 96 |
network_stat_init(*cur_entries, needed_entries, net_stats); |
| 97 |
*cur_entries=needed_entries; |
| 98 |
} |
| 99 |
|
| 100 |
return net_stats; |
| 101 |
} |
| 102 |
|
| 103 |
|
| 104 |
network_stat_t *get_network_stats(int *entries){ |
| 105 |
|
| 106 |
static int sizeof_network_stats=0; |
| 107 |
network_stat_t *network_stat_ptr; |
| 108 |
|
| 109 |
#ifdef SOLARIS |
| 110 |
kstat_ctl_t *kc; |
| 111 |
kstat_t *ksp; |
| 112 |
kstat_named_t *knp; |
| 113 |
#endif |
| 114 |
|
| 115 |
#ifdef LINUX |
| 116 |
FILE *f; |
| 117 |
/* Horrible big enough, but it should be easily big enough */ |
| 118 |
char line[8096]; |
| 119 |
regex_t regex; |
| 120 |
regmatch_t line_match[4]; |
| 121 |
#endif |
| 122 |
#ifdef ALLBSD |
| 123 |
struct ifaddrs *net, *net_ptr; |
| 124 |
struct if_data *net_data; |
| 125 |
#endif |
| 126 |
|
| 127 |
#ifdef ALLBSD |
| 128 |
if(getifaddrs(&net) != 0){ |
| 129 |
return NULL; |
| 130 |
} |
| 131 |
|
| 132 |
interfaces=0; |
| 133 |
|
| 134 |
for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){ |
| 135 |
if(net_ptr->ifa_addr->sa_family != AF_LINK) continue; |
| 136 |
network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats); |
| 137 |
if(network_stats==NULL){ |
| 138 |
return NULL; |
| 139 |
} |
| 140 |
network_stat_ptr=network_stats+interfaces; |
| 141 |
|
| 142 |
if(network_stat_ptr->interface_name!=NULL) free(network_stat_ptr->interface_name); |
| 143 |
network_stat_ptr->interface_name=strdup(net_ptr->ifa_name); |
| 144 |
if(network_stat_ptr->interface_name==NULL) return NULL; |
| 145 |
net_data=(struct if_data *)net_ptr->ifa_data; |
| 146 |
network_stat_ptr->rx=net_data->ifi_ibytes; |
| 147 |
network_stat_ptr->tx=net_data->ifi_obytes; |
| 148 |
network_stat_ptr->systime=time(NULL); |
| 149 |
interfaces++; |
| 150 |
} |
| 151 |
freeifaddrs(net); |
| 152 |
#endif |
| 153 |
|
| 154 |
#ifdef SOLARIS |
| 155 |
if ((kc = kstat_open()) == NULL) { |
| 156 |
return NULL; |
| 157 |
} |
| 158 |
|
| 159 |
interfaces=0; |
| 160 |
|
| 161 |
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
| 162 |
if (!strcmp(ksp->ks_class, "net")) { |
| 163 |
kstat_read(kc, ksp, NULL); |
| 164 |
|
| 165 |
#ifdef SOL7 |
| 166 |
#define RLOOKUP "rbytes" |
| 167 |
#define WLOOKUP "obytes" |
| 168 |
#define VALTYPE value.ui32 |
| 169 |
#else |
| 170 |
#define RLOOKUP "rbytes64" |
| 171 |
#define WLOOKUP "obytes64" |
| 172 |
#define VALTYPE value.ui64 |
| 173 |
#endif |
| 174 |
|
| 175 |
if((knp=kstat_data_lookup(ksp, RLOOKUP))==NULL){ |
| 176 |
/* Not a network interface, so skip to the next entry */ |
| 177 |
continue; |
| 178 |
} |
| 179 |
|
| 180 |
network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats); |
| 181 |
if(network_stats==NULL){ |
| 182 |
return NULL; |
| 183 |
} |
| 184 |
network_stat_ptr=network_stats+interfaces; |
| 185 |
network_stat_ptr->rx=knp->VALTYPE; |
| 186 |
|
| 187 |
if((knp=kstat_data_lookup(ksp, WLOOKUP))==NULL){ |
| 188 |
/* Not a network interface, so skip to the next entry */ |
| 189 |
continue; |
| 190 |
} |
| 191 |
network_stat_ptr->tx=knp->VALTYPE; |
| 192 |
if(network_stat_ptr->interface_name!=NULL){ |
| 193 |
free(network_stat_ptr->interface_name); |
| 194 |
} |
| 195 |
network_stat_ptr->interface_name=strdup(ksp->ks_name); |
| 196 |
|
| 197 |
network_stat_ptr->systime=time(NULL); |
| 198 |
interfaces++; |
| 199 |
} |
| 200 |
} |
| 201 |
|
| 202 |
kstat_close(kc); |
| 203 |
#endif |
| 204 |
#ifdef LINUX |
| 205 |
f=fopen("/proc/net/dev", "r"); |
| 206 |
if(f==NULL){ |
| 207 |
return NULL; |
| 208 |
} |
| 209 |
/* read the 2 lines.. Its the title, so we dont care :) */ |
| 210 |
fgets(line, sizeof(line), f); |
| 211 |
fgets(line, sizeof(line), f); |
| 212 |
|
| 213 |
|
| 214 |
if((regcomp(®ex, "^[[:space:]]*([^:]+):[[:space:]]*([[:digit:]]+)[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+([[:digit:]]+)", REG_EXTENDED))!=0){ |
| 215 |
return NULL; |
| 216 |
} |
| 217 |
|
| 218 |
interfaces=0; |
| 219 |
|
| 220 |
while((fgets(line, sizeof(line), f)) != NULL){ |
| 221 |
if((regexec(®ex, line, 4, line_match, 0))!=0){ |
| 222 |
continue; |
| 223 |
} |
| 224 |
network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats); |
| 225 |
if(network_stats==NULL){ |
| 226 |
return NULL; |
| 227 |
} |
| 228 |
network_stat_ptr=network_stats+interfaces; |
| 229 |
|
| 230 |
if(network_stat_ptr->interface_name!=NULL){ |
| 231 |
free(network_stat_ptr->interface_name); |
| 232 |
} |
| 233 |
|
| 234 |
network_stat_ptr->interface_name=get_string_match(line, &line_match[1]); |
| 235 |
network_stat_ptr->rx=get_ll_match(line, &line_match[2]); |
| 236 |
network_stat_ptr->tx=get_ll_match(line, &line_match[3]); |
| 237 |
network_stat_ptr->systime=time(NULL); |
| 238 |
|
| 239 |
interfaces++; |
| 240 |
} |
| 241 |
fclose(f); |
| 242 |
regfree(®ex); |
| 243 |
|
| 244 |
#endif |
| 245 |
|
| 246 |
#ifdef CYGWIN |
| 247 |
return NULL; |
| 248 |
#endif |
| 249 |
|
| 250 |
*entries=interfaces; |
| 251 |
|
| 252 |
return network_stats; |
| 253 |
} |
| 254 |
|
| 255 |
long long transfer_diff(long long new, long long old){ |
| 256 |
#if defined(SOL7) || defined(LINUX) || defined(FREEBSD) |
| 257 |
#define MAXVAL 4294967296LL |
| 258 |
#else |
| 259 |
#define MAXVAL 18446744073709551616LL |
| 260 |
#endif |
| 261 |
long long result; |
| 262 |
if(new>=old){ |
| 263 |
result = (new-old); |
| 264 |
}else{ |
| 265 |
result = (MAXVAL+(new-old)); |
| 266 |
} |
| 267 |
|
| 268 |
return result; |
| 269 |
|
| 270 |
} |
| 271 |
|
| 272 |
network_stat_t *get_network_stats_diff(int *entries) { |
| 273 |
static network_stat_t *diff = NULL; |
| 274 |
static int diff_count = 0; |
| 275 |
network_stat_t *src, *dest; |
| 276 |
int i, j, new_count; |
| 277 |
|
| 278 |
if (network_stats == NULL) { |
| 279 |
/* No previous stats, so we can't calculate a difference. */ |
| 280 |
return get_network_stats(entries); |
| 281 |
} |
| 282 |
|
| 283 |
/* Resize the results array to match the previous stats. */ |
| 284 |
diff = network_stat_malloc(interfaces, &diff_count, diff); |
| 285 |
if (diff == NULL) { |
| 286 |
return NULL; |
| 287 |
} |
| 288 |
|
| 289 |
/* Copy the previous stats into the result. */ |
| 290 |
for (i = 0; i < diff_count; i++) { |
| 291 |
src = &network_stats[i]; |
| 292 |
dest = &diff[i]; |
| 293 |
|
| 294 |
if (dest->interface_name != NULL) { |
| 295 |
free(dest->interface_name); |
| 296 |
} |
| 297 |
dest->interface_name = strdup(src->interface_name); |
| 298 |
dest->rx = src->rx; |
| 299 |
dest->tx = src->tx; |
| 300 |
dest->systime = src->systime; |
| 301 |
} |
| 302 |
|
| 303 |
/* Get a new set of stats. */ |
| 304 |
if (get_network_stats(&new_count) == NULL) { |
| 305 |
return NULL; |
| 306 |
} |
| 307 |
|
| 308 |
/* For each previous stat... */ |
| 309 |
for (i = 0; i < diff_count; i++) { |
| 310 |
dest = &diff[i]; |
| 311 |
|
| 312 |
/* ... find the corresponding new stat ... */ |
| 313 |
for (j = 0; j < new_count; j++) { |
| 314 |
/* Try the new stat in the same position first, |
| 315 |
since that's most likely to be it. */ |
| 316 |
src = &network_stats[(i + j) % new_count]; |
| 317 |
if (strcmp(src->interface_name, dest->interface_name) == 0) { |
| 318 |
break; |
| 319 |
} |
| 320 |
} |
| 321 |
if (j == new_count) { |
| 322 |
/* No match found. */ |
| 323 |
continue; |
| 324 |
} |
| 325 |
|
| 326 |
/* ... and subtract the previous stat from it to get the |
| 327 |
difference. */ |
| 328 |
dest->rx = transfer_diff(src->rx, dest->rx); |
| 329 |
dest->tx = transfer_diff(src->tx, dest->tx); |
| 330 |
dest->systime = src->systime - dest->systime; |
| 331 |
} |
| 332 |
|
| 333 |
*entries = diff_count; |
| 334 |
return diff; |
| 335 |
} |
| 336 |
/* NETWORK INTERFACE STATS */ |
| 337 |
|
| 338 |
void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){ |
| 339 |
|
| 340 |
for(net_stats+=start; start<end; start++){ |
| 341 |
net_stats->interface_name=NULL; |
| 342 |
net_stats->speed=0; |
| 343 |
net_stats->dup=UNKNOWN_DUPLEX; |
| 344 |
net_stats++; |
| 345 |
} |
| 346 |
} |
| 347 |
|
| 348 |
network_iface_stat_t *network_iface_stat_malloc(int needed_entries, int *cur_entries, network_iface_stat_t *net_stats){ |
| 349 |
|
| 350 |
if(net_stats==NULL){ |
| 351 |
|
| 352 |
if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){ |
| 353 |
return NULL; |
| 354 |
} |
| 355 |
network_iface_stat_init(0, needed_entries, net_stats); |
| 356 |
*cur_entries=needed_entries; |
| 357 |
|
| 358 |
return net_stats; |
| 359 |
} |
| 360 |
|
| 361 |
|
| 362 |
if(*cur_entries<needed_entries){ |
| 363 |
net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries)); |
| 364 |
if(net_stats==NULL){ |
| 365 |
return NULL; |
| 366 |
} |
| 367 |
network_iface_stat_init(*cur_entries, needed_entries, net_stats); |
| 368 |
*cur_entries=needed_entries; |
| 369 |
} |
| 370 |
|
| 371 |
return net_stats; |
| 372 |
} |
| 373 |
|
| 374 |
network_iface_stat_t *get_network_iface_stats(int *entries){ |
| 375 |
static network_iface_stat_t *network_iface_stats; |
| 376 |
network_iface_stat_t *network_iface_stat_ptr; |
| 377 |
static int sizeof_network_iface_stats=0; |
| 378 |
static int ifaces; |
| 379 |
|
| 380 |
#ifdef SOLARIS |
| 381 |
kstat_ctl_t *kc; |
| 382 |
kstat_t *ksp; |
| 383 |
kstat_named_t *knp; |
| 384 |
#endif |
| 385 |
#ifdef ALLBSD |
| 386 |
struct ifaddrs *net, *net_ptr; |
| 387 |
struct ifmediareq ifmed; |
| 388 |
int s; |
| 389 |
int x; |
| 390 |
#endif |
| 391 |
#ifdef LINUX |
| 392 |
FILE *f; |
| 393 |
/* Horrible big enough, but it should be easily big enough */ |
| 394 |
char line[8096]; |
| 395 |
void *eth_tool_cmd_buf; |
| 396 |
int buf_size; |
| 397 |
int sock; |
| 398 |
#endif |
| 399 |
ifaces = 0; |
| 400 |
#ifdef ALLBSD |
| 401 |
if(getifaddrs(&net) != 0){ |
| 402 |
return NULL; |
| 403 |
} |
| 404 |
|
| 405 |
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == NULL) return NULL; |
| 406 |
|
| 407 |
for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){ |
| 408 |
if(net_ptr->ifa_addr->sa_family != AF_LINK) continue; |
| 409 |
network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats); |
| 410 |
if(network_iface_stats==NULL){ |
| 411 |
return NULL; |
| 412 |
} |
| 413 |
network_iface_stat_ptr = network_iface_stats + ifaces; |
| 414 |
|
| 415 |
memset(&ifmed, 0, sizeof(struct ifmediareq)); |
| 416 |
strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name)); |
| 417 |
if(ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){ |
| 418 |
continue; |
| 419 |
} |
| 420 |
|
| 421 |
/* We may need to change this if we start doing wireless devices too */ |
| 422 |
if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){ |
| 423 |
/* Not a ETHER device */ |
| 424 |
continue; |
| 425 |
} |
| 426 |
|
| 427 |
if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name); |
| 428 |
network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name); |
| 429 |
if(network_iface_stat_ptr->interface_name == NULL) return NULL; |
| 430 |
|
| 431 |
/* Only intrested in the first 4 bits) - Assuming only ETHER devices */ |
| 432 |
x = ifmed.ifm_active & 0x0f; |
| 433 |
switch(x){ |
| 434 |
/* 10 Mbit connections. Speedy :) */ |
| 435 |
case(IFM_10_T): |
| 436 |
case(IFM_10_2): |
| 437 |
case(IFM_10_5): |
| 438 |
case(IFM_10_STP): |
| 439 |
case(IFM_10_FL): |
| 440 |
network_iface_stat_ptr->speed = 10; |
| 441 |
break; |
| 442 |
/* 100 Mbit conneections */ |
| 443 |
case(IFM_100_TX): |
| 444 |
case(IFM_100_FX): |
| 445 |
case(IFM_100_T4): |
| 446 |
case(IFM_100_VG): |
| 447 |
case(IFM_100_T2): |
| 448 |
network_iface_stat_ptr->speed = 100; |
| 449 |
break; |
| 450 |
/* 1000 Mbit connections */ |
| 451 |
case(IFM_1000_SX): |
| 452 |
case(IFM_1000_LX): |
| 453 |
case(IFM_1000_CX): |
| 454 |
#if defined(FREEBSD) && !defined(FREEBSD5) |
| 455 |
case(IFM_1000_TX): |
| 456 |
case(IFM_1000_FX): |
| 457 |
#else |
| 458 |
case(IFM_1000_T): |
| 459 |
#endif |
| 460 |
network_iface_stat_ptr->speed = 1000; |
| 461 |
break; |
| 462 |
/* We don't know what it is */ |
| 463 |
default: |
| 464 |
network_iface_stat_ptr->speed = 0; |
| 465 |
break; |
| 466 |
} |
| 467 |
|
| 468 |
if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){ |
| 469 |
network_iface_stat_ptr->dup = FULL_DUPLEX; |
| 470 |
}else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){ |
| 471 |
network_iface_stat_ptr->dup = HALF_DUPLEX; |
| 472 |
}else{ |
| 473 |
network_iface_stat_ptr->dup = UNKNOWN_DUPLEX; |
| 474 |
} |
| 475 |
ifaces++; |
| 476 |
} |
| 477 |
freeifaddrs(net); |
| 478 |
close(s); |
| 479 |
#endif |
| 480 |
|
| 481 |
#ifdef SOLARIS |
| 482 |
if ((kc = kstat_open()) == NULL) { |
| 483 |
return NULL; |
| 484 |
} |
| 485 |
|
| 486 |
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
| 487 |
if (!strcmp(ksp->ks_class, "net")) { |
| 488 |
kstat_read(kc, ksp, NULL); |
| 489 |
if((knp=kstat_data_lookup(ksp, "ifspeed"))==NULL){ |
| 490 |
/* Not a network interface, so skip to the next entry */ |
| 491 |
continue; |
| 492 |
} |
| 493 |
network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats); |
| 494 |
if(network_iface_stats==NULL){ |
| 495 |
return NULL; |
| 496 |
} |
| 497 |
network_iface_stat_ptr = network_iface_stats + ifaces; |
| 498 |
network_iface_stat_ptr->speed = knp->value.ui64 / (1000*1000); |
| 499 |
|
| 500 |
if((knp=kstat_data_lookup(ksp, "link_duplex"))==NULL){ |
| 501 |
/* Not a network interface, so skip to the next entry */ |
| 502 |
continue; |
| 503 |
} |
| 504 |
|
| 505 |
if(knp->value.ui64 == 0){ |
| 506 |
network_iface_stat_ptr->dup = FULL_DUPLEX; |
| 507 |
}else{ |
| 508 |
network_iface_stat_ptr->dup = HALF_DUPLEX; |
| 509 |
} |
| 510 |
|
| 511 |
if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name); |
| 512 |
network_iface_stat_ptr->interface_name = strdup(ksp->ks_name); |
| 513 |
if(network_iface_stat_ptr->interface_name == NULL) return NULL; |
| 514 |
ifaces++; |
| 515 |
} |
| 516 |
} |
| 517 |
kstat_close(kc); |
| 518 |
|
| 519 |
#endif |
| 520 |
#ifdef LINUX |
| 521 |
|
| 522 |
f = fopen("/proc/net/dev", "r"); |
| 523 |
if(f == NULL){ |
| 524 |
return NULL; |
| 525 |
} |
| 526 |
|
| 527 |
/* Setup stuff so we can do the ioctl to get the info */ |
| 528 |
if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){ |
| 529 |
return NULL; |
| 530 |
} |
| 531 |
|
| 532 |
buf_size = sizeof(struct ethtool_cmd); |
| 533 |
eth_tool_cmd_buf = malloc(buf_size); |
| 534 |
if(eth_tool_cmd_buf == NULL) return NULL; |
| 535 |
|
| 536 |
/* Ignore first 2 lines.. Just headings */ |
| 537 |
if((fgets(line, sizeof(line), f)) == NULL) return NULL; |
| 538 |
if((fgets(line, sizeof(line), f)) == NULL) return NULL; |
| 539 |
|
| 540 |
while((fgets(line, sizeof(line), f)) != NULL){ |
| 541 |
char *name, *ptr; |
| 542 |
struct ifreq ifr; |
| 543 |
struct ethtool_cmd *ethcmd; |
| 544 |
int err; |
| 545 |
|
| 546 |
/* Get the interface name */ |
| 547 |
ptr = strchr(line, ':'); |
| 548 |
if (ptr == NULL) continue; |
| 549 |
*ptr='\0'; |
| 550 |
name = line; |
| 551 |
while(isspace(*(name))){ |
| 552 |
name++; |
| 553 |
} |
| 554 |
|
| 555 |
memset(&ifr, 0, sizeof(ifr)); |
| 556 |
memset(eth_tool_cmd_buf, 0, buf_size); |
| 557 |
ifr.ifr_data = (caddr_t) eth_tool_cmd_buf; |
| 558 |
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); |
| 559 |
|
| 560 |
ethcmd = (struct ethtool_cmd *) ifr.ifr_data; |
| 561 |
ethcmd->cmd = ETHTOOL_GSET; |
| 562 |
|
| 563 |
err = ioctl(sock, SIOCETHTOOL, &ifr); |
| 564 |
if(err < 0){ |
| 565 |
/* This could fail if the interface doesn't support the command. Carry |
| 566 |
* on to the next :) |
| 567 |
*/ |
| 568 |
continue; |
| 569 |
} |
| 570 |
|
| 571 |
/* We have a good interface to add */ |
| 572 |
network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats); |
| 573 |
if(network_iface_stats==NULL){ |
| 574 |
return NULL; |
| 575 |
} |
| 576 |
network_iface_stat_ptr = network_iface_stats + ifaces; |
| 577 |
network_iface_stat_ptr->interface_name = strdup(name); |
| 578 |
network_iface_stat_ptr->speed = ethcmd->speed; |
| 579 |
network_iface_stat_ptr->dup = UNKNOWN_DUPLEX; |
| 580 |
if(ethcmd->duplex == 0x00){ |
| 581 |
network_iface_stat_ptr->dup = FULL_DUPLEX; |
| 582 |
} |
| 583 |
if(ethcmd->duplex == 0x01){ |
| 584 |
network_iface_stat_ptr->dup = HALF_DUPLEX; |
| 585 |
} |
| 586 |
ifaces++; |
| 587 |
} |
| 588 |
close(sock); |
| 589 |
free(eth_tool_cmd_buf); |
| 590 |
#endif |
| 591 |
*entries = ifaces; |
| 592 |
return network_iface_stats; |
| 593 |
} |
| 594 |
|
