osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1 | /* |
| 2 | * utils.c |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version |
| 7 | * 2 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> |
| 10 | * |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 11 | */ |
| 12 | |
| 13 | #include <stdio.h> |
| 14 | #include <stdlib.h> |
| 15 | #include <unistd.h> |
| 16 | #include <syslog.h> |
| 17 | #include <fcntl.h> |
| 18 | #include <sys/socket.h> |
| 19 | #include <netinet/in.h> |
| 20 | #include <string.h> |
| 21 | #include <netdb.h> |
| 22 | #include <arpa/inet.h> |
| 23 | #include <resolv.h> |
osdl.org!shemminger | 5dfe556 | 2004-06-08 23:50:43 +0000 | [diff] [blame] | 24 | #include <asm/types.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 25 | #include <linux/pkt_sched.h> |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 26 | #include <time.h> |
| 27 | #include <sys/time.h> |
| 28 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 29 | |
| 30 | #include "utils.h" |
| 31 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 32 | int get_integer(int *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 33 | { |
| 34 | long res; |
| 35 | char *ptr; |
| 36 | |
| 37 | if (!arg || !*arg) |
| 38 | return -1; |
| 39 | res = strtol(arg, &ptr, base); |
| 40 | if (!ptr || ptr == arg || *ptr || res > INT_MAX || res < INT_MIN) |
| 41 | return -1; |
| 42 | *val = res; |
| 43 | return 0; |
| 44 | } |
| 45 | |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 46 | int mask2bits(__u32 netmask) |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 47 | { |
| 48 | unsigned bits = 0; |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 49 | __u32 mask = ntohl(netmask); |
| 50 | __u32 host = ~mask; |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 51 | |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 52 | /* a valid netmask must be 2^n - 1 */ |
| 53 | if ((host & (host + 1)) != 0) |
| 54 | return -1; |
| 55 | |
| 56 | for (; mask; mask <<= 1) |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 57 | ++bits; |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 58 | return bits; |
| 59 | } |
| 60 | |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 61 | static int get_netmask(unsigned *val, const char *arg, int base) |
| 62 | { |
| 63 | inet_prefix addr; |
| 64 | |
| 65 | if (!get_unsigned(val, arg, base)) |
| 66 | return 0; |
| 67 | |
| 68 | /* try coverting dotted quad to CIDR */ |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 69 | if (!get_addr_1(&addr, arg, AF_INET) && addr.family == AF_INET) { |
| 70 | int b = mask2bits(addr.data[0]); |
| 71 | |
| 72 | if (b >= 0) { |
| 73 | *val = b; |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 74 | return 0; |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 75 | } |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 76 | } |
| 77 | |
| 78 | return -1; |
| 79 | } |
| 80 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 81 | int get_unsigned(unsigned *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 82 | { |
| 83 | unsigned long res; |
| 84 | char *ptr; |
| 85 | |
| 86 | if (!arg || !*arg) |
| 87 | return -1; |
| 88 | res = strtoul(arg, &ptr, base); |
| 89 | if (!ptr || ptr == arg || *ptr || res > UINT_MAX) |
| 90 | return -1; |
| 91 | *val = res; |
| 92 | return 0; |
| 93 | } |
| 94 | |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 95 | /* |
Gerrit Renker | db6b0cf | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 96 | * get_time_rtt is "translated" from a similar routine "get_time" in |
| 97 | * tc_util.c. We don't use the exact same routine because tc passes |
| 98 | * microseconds to the kernel and the callers of get_time_rtt want to |
| 99 | * pass milliseconds (standard unit for rtt values since 2.6.27), and |
| 100 | * have a different assumption for the units of a "raw" number. |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 101 | */ |
Gerrit Renker | db6b0cf | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 102 | int get_time_rtt(unsigned *val, const char *arg, int *raw) |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 103 | { |
| 104 | double t; |
| 105 | unsigned long res; |
| 106 | char *p; |
| 107 | |
| 108 | if (strchr(arg,'.') != NULL) { |
| 109 | t = strtod(arg,&p); |
| 110 | if (t < 0.0) |
| 111 | return -1; |
| 112 | } |
| 113 | else { |
Gerrit Renker | 897fb84 | 2010-12-21 12:54:09 +0100 | [diff] [blame] | 114 | res = strtoul(arg, &p, 0); |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 115 | if (res > UINT_MAX) |
| 116 | return -1; |
| 117 | t = (double)res; |
| 118 | } |
| 119 | if (p == arg) |
| 120 | return -1; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 121 | *raw = 1; |
| 122 | |
| 123 | if (*p) { |
| 124 | *raw = 0; |
| 125 | if (strcasecmp(p, "s") == 0 || strcasecmp(p, "sec")==0 || |
| 126 | strcasecmp(p, "secs")==0) |
Gerrit Renker | fca1dae | 2011-02-25 12:51:48 -0800 | [diff] [blame] | 127 | t *= 1000; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 128 | else if (strcasecmp(p, "ms") == 0 || strcasecmp(p, "msec")==0 || |
| 129 | strcasecmp(p, "msecs") == 0) |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 130 | t *= 1.0; /* allow suffix, do nothing */ |
| 131 | else |
| 132 | return -1; |
| 133 | } |
| 134 | |
| 135 | /* emulate ceil() without having to bring-in -lm and always be >= 1 */ |
| 136 | |
Gerrit Renker | db6b0cf | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 137 | *val = t; |
| 138 | if (*val < t) |
| 139 | *val += 1; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 140 | |
| 141 | return 0; |
| 142 | |
| 143 | } |
| 144 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 145 | int get_u64(__u64 *val, const char *arg, int base) |
| 146 | { |
| 147 | unsigned long long res; |
| 148 | char *ptr; |
| 149 | |
| 150 | if (!arg || !*arg) |
| 151 | return -1; |
| 152 | res = strtoull(arg, &ptr, base); |
| 153 | if (!ptr || ptr == arg || *ptr || res == 0xFFFFFFFFULL) |
| 154 | return -1; |
| 155 | *val = res; |
| 156 | return 0; |
| 157 | } |
| 158 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 159 | int get_u32(__u32 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 160 | { |
| 161 | unsigned long res; |
| 162 | char *ptr; |
| 163 | |
| 164 | if (!arg || !*arg) |
| 165 | return -1; |
| 166 | res = strtoul(arg, &ptr, base); |
| 167 | if (!ptr || ptr == arg || *ptr || res > 0xFFFFFFFFUL) |
| 168 | return -1; |
| 169 | *val = res; |
| 170 | return 0; |
| 171 | } |
| 172 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 173 | int get_u16(__u16 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 174 | { |
| 175 | unsigned long res; |
| 176 | char *ptr; |
| 177 | |
| 178 | if (!arg || !*arg) |
| 179 | return -1; |
| 180 | res = strtoul(arg, &ptr, base); |
| 181 | if (!ptr || ptr == arg || *ptr || res > 0xFFFF) |
| 182 | return -1; |
| 183 | *val = res; |
| 184 | return 0; |
| 185 | } |
| 186 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 187 | int get_u8(__u8 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 188 | { |
| 189 | unsigned long res; |
| 190 | char *ptr; |
| 191 | |
| 192 | if (!arg || !*arg) |
| 193 | return -1; |
| 194 | res = strtoul(arg, &ptr, base); |
| 195 | if (!ptr || ptr == arg || *ptr || res > 0xFF) |
| 196 | return -1; |
| 197 | *val = res; |
| 198 | return 0; |
| 199 | } |
| 200 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 201 | int get_s16(__s16 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 202 | { |
| 203 | long res; |
| 204 | char *ptr; |
| 205 | |
| 206 | if (!arg || !*arg) |
| 207 | return -1; |
| 208 | res = strtol(arg, &ptr, base); |
| 209 | if (!ptr || ptr == arg || *ptr || res > 0x7FFF || res < -0x8000) |
| 210 | return -1; |
| 211 | *val = res; |
| 212 | return 0; |
| 213 | } |
| 214 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 215 | int get_s8(__s8 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 216 | { |
| 217 | long res; |
| 218 | char *ptr; |
| 219 | |
| 220 | if (!arg || !*arg) |
| 221 | return -1; |
| 222 | res = strtol(arg, &ptr, base); |
| 223 | if (!ptr || ptr == arg || *ptr || res > 0x7F || res < -0x80) |
| 224 | return -1; |
| 225 | *val = res; |
| 226 | return 0; |
| 227 | } |
| 228 | |
Stephen Hemminger | cafa6c8 | 2008-10-27 10:27:27 -0700 | [diff] [blame] | 229 | /* This uses a non-standard parsing (ie not inet_aton, or inet_pton) |
| 230 | * because of legacy choice to parse 10.8 as 10.8.0.0 not 10.0.0.8 |
| 231 | */ |
| 232 | static int get_addr_ipv4(__u8 *ap, const char *cp) |
| 233 | { |
| 234 | int i; |
| 235 | |
| 236 | for (i = 0; i < 4; i++) { |
| 237 | unsigned long n; |
| 238 | char *endp; |
| 239 | |
| 240 | n = strtoul(cp, &endp, 0); |
| 241 | if (n > 255) |
| 242 | return -1; /* bogus network value */ |
| 243 | |
| 244 | if (endp == cp) /* no digits */ |
| 245 | return -1; |
| 246 | |
| 247 | ap[i] = n; |
| 248 | |
| 249 | if (*endp == '\0') |
| 250 | break; |
| 251 | |
| 252 | if (i == 3 || *endp != '.') |
| 253 | return -1; /* extra characters */ |
| 254 | cp = endp + 1; |
| 255 | } |
| 256 | |
| 257 | return 1; |
| 258 | } |
| 259 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 260 | int get_addr_1(inet_prefix *addr, const char *name, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 261 | { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 262 | memset(addr, 0, sizeof(*addr)); |
| 263 | |
| 264 | if (strcmp(name, "default") == 0 || |
| 265 | strcmp(name, "all") == 0 || |
| 266 | strcmp(name, "any") == 0) { |
| 267 | if (family == AF_DECnet) |
| 268 | return -1; |
| 269 | addr->family = family; |
| 270 | addr->bytelen = (family == AF_INET6 ? 16 : 4); |
| 271 | addr->bitlen = -1; |
| 272 | return 0; |
| 273 | } |
| 274 | |
| 275 | if (strchr(name, ':')) { |
| 276 | addr->family = AF_INET6; |
| 277 | if (family != AF_UNSPEC && family != AF_INET6) |
| 278 | return -1; |
| 279 | if (inet_pton(AF_INET6, name, addr->data) <= 0) |
| 280 | return -1; |
| 281 | addr->bytelen = 16; |
| 282 | addr->bitlen = -1; |
| 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | if (family == AF_DECnet) { |
| 287 | struct dn_naddr dna; |
| 288 | addr->family = AF_DECnet; |
| 289 | if (dnet_pton(AF_DECnet, name, &dna) <= 0) |
| 290 | return -1; |
| 291 | memcpy(addr->data, dna.a_addr, 2); |
| 292 | addr->bytelen = 2; |
| 293 | addr->bitlen = -1; |
| 294 | return 0; |
| 295 | } |
| 296 | |
| 297 | addr->family = AF_INET; |
| 298 | if (family != AF_UNSPEC && family != AF_INET) |
| 299 | return -1; |
Stephen Hemminger | 94afda7 | 2008-10-14 15:02:16 -0700 | [diff] [blame] | 300 | |
Stephen Hemminger | cafa6c8 | 2008-10-27 10:27:27 -0700 | [diff] [blame] | 301 | if (get_addr_ipv4((__u8 *)addr->data, name) <= 0) |
Stephen Hemminger | 94afda7 | 2008-10-14 15:02:16 -0700 | [diff] [blame] | 302 | return -1; |
| 303 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 304 | addr->bytelen = 4; |
| 305 | addr->bitlen = -1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 306 | return 0; |
| 307 | } |
| 308 | |
osdl.net!shemminger | fb9b1d0 | 2005-02-07 18:15:04 +0000 | [diff] [blame] | 309 | int get_prefix_1(inet_prefix *dst, char *arg, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 310 | { |
| 311 | int err; |
| 312 | unsigned plen; |
| 313 | char *slash; |
| 314 | |
| 315 | memset(dst, 0, sizeof(*dst)); |
| 316 | |
| 317 | if (strcmp(arg, "default") == 0 || |
| 318 | strcmp(arg, "any") == 0 || |
| 319 | strcmp(arg, "all") == 0) { |
| 320 | if (family == AF_DECnet) |
| 321 | return -1; |
| 322 | dst->family = family; |
| 323 | dst->bytelen = 0; |
| 324 | dst->bitlen = 0; |
| 325 | return 0; |
| 326 | } |
| 327 | |
| 328 | slash = strchr(arg, '/'); |
| 329 | if (slash) |
| 330 | *slash = 0; |
osdl.net!shemminger | fb9b1d0 | 2005-02-07 18:15:04 +0000 | [diff] [blame] | 331 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 332 | err = get_addr_1(dst, arg, family); |
| 333 | if (err == 0) { |
| 334 | switch(dst->family) { |
| 335 | case AF_INET6: |
| 336 | dst->bitlen = 128; |
| 337 | break; |
| 338 | case AF_DECnet: |
| 339 | dst->bitlen = 16; |
| 340 | break; |
| 341 | default: |
| 342 | case AF_INET: |
| 343 | dst->bitlen = 32; |
| 344 | } |
| 345 | if (slash) { |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 346 | if (get_netmask(&plen, slash+1, 0) |
| 347 | || plen > dst->bitlen) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 348 | err = -1; |
| 349 | goto done; |
| 350 | } |
net[shemminger]!shemminger | f082b64 | 2005-03-30 18:16:10 +0000 | [diff] [blame] | 351 | dst->flags |= PREFIXLEN_SPECIFIED; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 352 | dst->bitlen = plen; |
| 353 | } |
| 354 | } |
| 355 | done: |
| 356 | if (slash) |
| 357 | *slash = '/'; |
| 358 | return err; |
| 359 | } |
| 360 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 361 | int get_addr(inet_prefix *dst, const char *arg, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 362 | { |
| 363 | if (family == AF_PACKET) { |
| 364 | fprintf(stderr, "Error: \"%s\" may be inet address, but it is not allowed in this context.\n", arg); |
| 365 | exit(1); |
| 366 | } |
| 367 | if (get_addr_1(dst, arg, family)) { |
| 368 | fprintf(stderr, "Error: an inet address is expected rather than \"%s\".\n", arg); |
| 369 | exit(1); |
| 370 | } |
| 371 | return 0; |
| 372 | } |
| 373 | |
osdl.net!shemminger | fb9b1d0 | 2005-02-07 18:15:04 +0000 | [diff] [blame] | 374 | int get_prefix(inet_prefix *dst, char *arg, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 375 | { |
| 376 | if (family == AF_PACKET) { |
| 377 | fprintf(stderr, "Error: \"%s\" may be inet prefix, but it is not allowed in this context.\n", arg); |
| 378 | exit(1); |
| 379 | } |
| 380 | if (get_prefix_1(dst, arg, family)) { |
| 381 | fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", arg); |
| 382 | exit(1); |
| 383 | } |
| 384 | return 0; |
| 385 | } |
| 386 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 387 | __u32 get_addr32(const char *name) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 388 | { |
| 389 | inet_prefix addr; |
| 390 | if (get_addr_1(&addr, name, AF_INET)) { |
| 391 | fprintf(stderr, "Error: an IP address is expected rather than \"%s\"\n", name); |
| 392 | exit(1); |
| 393 | } |
| 394 | return addr.data[0]; |
| 395 | } |
| 396 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 397 | void incomplete_command(void) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 398 | { |
| 399 | fprintf(stderr, "Command line is not complete. Try option \"help\"\n"); |
| 400 | exit(-1); |
| 401 | } |
| 402 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 403 | void missarg(const char *key) |
| 404 | { |
| 405 | fprintf(stderr, "Error: argument \"%s\" is required\n", key); |
| 406 | exit(-1); |
| 407 | } |
| 408 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 409 | void invarg(const char *msg, const char *arg) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 410 | { |
| 411 | fprintf(stderr, "Error: argument \"%s\" is wrong: %s\n", arg, msg); |
| 412 | exit(-1); |
| 413 | } |
| 414 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 415 | void duparg(const char *key, const char *arg) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 416 | { |
| 417 | fprintf(stderr, "Error: duplicate \"%s\": \"%s\" is the second value.\n", key, arg); |
| 418 | exit(-1); |
| 419 | } |
| 420 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 421 | void duparg2(const char *key, const char *arg) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 422 | { |
| 423 | fprintf(stderr, "Error: either \"%s\" is duplicate, or \"%s\" is a garbage.\n", key, arg); |
| 424 | exit(-1); |
| 425 | } |
| 426 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 427 | int matches(const char *cmd, const char *pattern) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 428 | { |
| 429 | int len = strlen(cmd); |
| 430 | if (len > strlen(pattern)) |
| 431 | return -1; |
| 432 | return memcmp(pattern, cmd, len); |
| 433 | } |
| 434 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 435 | int inet_addr_match(const inet_prefix *a, const inet_prefix *b, int bits) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 436 | { |
Stephen Hemminger | 9626dfd | 2006-12-05 09:59:59 -0800 | [diff] [blame] | 437 | const __u32 *a1 = a->data; |
| 438 | const __u32 *a2 = b->data; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 439 | int words = bits >> 0x05; |
| 440 | |
| 441 | bits &= 0x1f; |
| 442 | |
| 443 | if (words) |
| 444 | if (memcmp(a1, a2, words << 2)) |
| 445 | return -1; |
| 446 | |
| 447 | if (bits) { |
| 448 | __u32 w1, w2; |
| 449 | __u32 mask; |
| 450 | |
| 451 | w1 = a1[words]; |
| 452 | w2 = a2[words]; |
| 453 | |
| 454 | mask = htonl((0xffffffff) << (0x20 - bits)); |
| 455 | |
| 456 | if ((w1 ^ w2) & mask) |
| 457 | return 1; |
| 458 | } |
| 459 | |
| 460 | return 0; |
| 461 | } |
| 462 | |
| 463 | int __iproute2_hz_internal; |
| 464 | |
| 465 | int __get_hz(void) |
| 466 | { |
| 467 | char name[1024]; |
| 468 | int hz = 0; |
| 469 | FILE *fp; |
| 470 | |
| 471 | if (getenv("HZ")) |
| 472 | return atoi(getenv("HZ")) ? : HZ; |
| 473 | |
| 474 | if (getenv("PROC_NET_PSCHED")) { |
| 475 | snprintf(name, sizeof(name)-1, "%s", getenv("PROC_NET_PSCHED")); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 476 | } else if (getenv("PROC_ROOT")) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 477 | snprintf(name, sizeof(name)-1, "%s/net/psched", getenv("PROC_ROOT")); |
| 478 | } else { |
| 479 | strcpy(name, "/proc/net/psched"); |
| 480 | } |
| 481 | fp = fopen(name, "r"); |
| 482 | |
| 483 | if (fp) { |
| 484 | unsigned nom, denom; |
| 485 | if (fscanf(fp, "%*08x%*08x%08x%08x", &nom, &denom) == 2) |
| 486 | if (nom == 1000000) |
| 487 | hz = denom; |
| 488 | fclose(fp); |
| 489 | } |
| 490 | if (hz) |
| 491 | return hz; |
| 492 | return HZ; |
| 493 | } |
| 494 | |
net[shemminger]!shemminger | 5e8bc63 | 2005-03-14 18:44:54 +0000 | [diff] [blame] | 495 | int __iproute2_user_hz_internal; |
| 496 | |
| 497 | int __get_user_hz(void) |
| 498 | { |
| 499 | return sysconf(_SC_CLK_TCK); |
| 500 | } |
| 501 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 502 | const char *rt_addr_n2a(int af, int len, const void *addr, char *buf, int buflen) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 503 | { |
| 504 | switch (af) { |
| 505 | case AF_INET: |
| 506 | case AF_INET6: |
| 507 | return inet_ntop(af, addr, buf, buflen); |
| 508 | case AF_IPX: |
| 509 | return ipx_ntop(af, addr, buf, buflen); |
| 510 | case AF_DECnet: |
| 511 | { |
| 512 | struct dn_naddr dna = { 2, { 0, 0, }}; |
| 513 | memcpy(dna.a_addr, addr, 2); |
| 514 | return dnet_ntop(af, &dna, buf, buflen); |
| 515 | } |
| 516 | default: |
| 517 | return "???"; |
| 518 | } |
| 519 | } |
| 520 | |
| 521 | #ifdef RESOLVE_HOSTNAMES |
| 522 | struct namerec |
| 523 | { |
| 524 | struct namerec *next; |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 525 | const char *name; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 526 | inet_prefix addr; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 527 | }; |
| 528 | |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 529 | #define NHASH 257 |
| 530 | static struct namerec *nht[NHASH]; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 531 | |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 532 | static const char *resolve_address(const void *addr, int len, int af) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 533 | { |
| 534 | struct namerec *n; |
| 535 | struct hostent *h_ent; |
| 536 | unsigned hash; |
| 537 | static int notfirst; |
| 538 | |
| 539 | |
| 540 | if (af == AF_INET6 && ((__u32*)addr)[0] == 0 && |
| 541 | ((__u32*)addr)[1] == 0 && ((__u32*)addr)[2] == htonl(0xffff)) { |
| 542 | af = AF_INET; |
| 543 | addr += 12; |
| 544 | len = 4; |
| 545 | } |
| 546 | |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 547 | hash = *(__u32 *)(addr + len - 4) % NHASH; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 548 | |
| 549 | for (n = nht[hash]; n; n = n->next) { |
| 550 | if (n->addr.family == af && |
| 551 | n->addr.bytelen == len && |
| 552 | memcmp(n->addr.data, addr, len) == 0) |
| 553 | return n->name; |
| 554 | } |
| 555 | if ((n = malloc(sizeof(*n))) == NULL) |
| 556 | return NULL; |
| 557 | n->addr.family = af; |
| 558 | n->addr.bytelen = len; |
| 559 | n->name = NULL; |
| 560 | memcpy(n->addr.data, addr, len); |
| 561 | n->next = nht[hash]; |
| 562 | nht[hash] = n; |
| 563 | if (++notfirst == 1) |
| 564 | sethostent(1); |
| 565 | fflush(stdout); |
| 566 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 567 | if ((h_ent = gethostbyaddr(addr, len, af)) != NULL) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 568 | n->name = strdup(h_ent->h_name); |
| 569 | |
| 570 | /* Even if we fail, "negative" entry is remembered. */ |
| 571 | return n->name; |
| 572 | } |
| 573 | #endif |
| 574 | |
| 575 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 576 | const char *format_host(int af, int len, const void *addr, |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 577 | char *buf, int buflen) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 578 | { |
| 579 | #ifdef RESOLVE_HOSTNAMES |
| 580 | if (resolve_hosts) { |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 581 | const char *n; |
| 582 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 583 | if (len <= 0) { |
| 584 | switch (af) { |
| 585 | case AF_INET: |
| 586 | len = 4; |
| 587 | break; |
| 588 | case AF_INET6: |
| 589 | len = 16; |
| 590 | break; |
| 591 | case AF_IPX: |
| 592 | len = 10; |
| 593 | break; |
| 594 | #ifdef AF_DECnet |
| 595 | /* I see no reasons why gethostbyname |
| 596 | may not work for DECnet */ |
| 597 | case AF_DECnet: |
| 598 | len = 2; |
| 599 | break; |
| 600 | #endif |
| 601 | default: ; |
| 602 | } |
| 603 | } |
| 604 | if (len > 0 && |
| 605 | (n = resolve_address(addr, len, af)) != NULL) |
| 606 | return n; |
| 607 | } |
| 608 | #endif |
| 609 | return rt_addr_n2a(af, len, addr, buf, buflen); |
| 610 | } |
| 611 | |
| 612 | |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 613 | char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 614 | { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 615 | char *ptr = buf; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 616 | int i; |
| 617 | |
| 618 | for (i=0; i<len; i++) { |
| 619 | if (blen < 3) |
| 620 | break; |
| 621 | sprintf(ptr, "%02x", str[i]); |
| 622 | ptr += 2; |
| 623 | blen -= 2; |
| 624 | if (i != len-1 && blen > 1) { |
| 625 | *ptr++ = ':'; |
| 626 | blen--; |
| 627 | } |
| 628 | } |
| 629 | return buf; |
| 630 | } |
| 631 | |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 632 | __u8* hexstring_a2n(const char *str, __u8 *buf, int blen) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 633 | { |
| 634 | int cnt = 0; |
| 635 | |
| 636 | for (;;) { |
| 637 | unsigned acc; |
| 638 | char ch; |
| 639 | |
| 640 | acc = 0; |
| 641 | |
| 642 | while ((ch = *str) != ':' && ch != 0) { |
| 643 | if (ch >= '0' && ch <= '9') |
| 644 | ch -= '0'; |
| 645 | else if (ch >= 'a' && ch <= 'f') |
| 646 | ch -= 'a'-10; |
| 647 | else if (ch >= 'A' && ch <= 'F') |
| 648 | ch -= 'A'-10; |
| 649 | else |
| 650 | return NULL; |
| 651 | acc = (acc<<4) + ch; |
| 652 | str++; |
| 653 | } |
| 654 | |
| 655 | if (acc > 255) |
| 656 | return NULL; |
| 657 | if (cnt < blen) { |
| 658 | buf[cnt] = acc; |
| 659 | cnt++; |
| 660 | } |
| 661 | if (ch == 0) |
| 662 | break; |
| 663 | ++str; |
| 664 | } |
| 665 | if (cnt < blen) |
| 666 | memset(buf+cnt, 0, blen-cnt); |
| 667 | return buf; |
| 668 | } |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 669 | |
| 670 | int print_timestamp(FILE *fp) |
| 671 | { |
| 672 | struct timeval tv; |
| 673 | char *tstr; |
| 674 | |
| 675 | memset(&tv, 0, sizeof(tv)); |
| 676 | gettimeofday(&tv, NULL); |
| 677 | |
| 678 | tstr = asctime(localtime(&tv.tv_sec)); |
| 679 | tstr[strlen(tstr)-1] = 0; |
| 680 | fprintf(fp, "Timestamp: %s %lu usec\n", tstr, tv.tv_usec); |
| 681 | return 0; |
| 682 | } |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 683 | |
| 684 | int cmdlineno; |
| 685 | |
| 686 | /* Like glibc getline but handle continuation lines and comments */ |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 687 | ssize_t getcmdline(char **linep, size_t *lenp, FILE *in) |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 688 | { |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 689 | ssize_t cc; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 690 | char *cp; |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 691 | |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 692 | if ((cc = getline(linep, lenp, in)) < 0) |
| 693 | return cc; /* eof or error */ |
| 694 | ++cmdlineno; |
| 695 | |
| 696 | cp = strchr(*linep, '#'); |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 697 | if (cp) |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 698 | *cp = '\0'; |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 699 | |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 700 | while ((cp = strstr(*linep, "\\\n")) != NULL) { |
| 701 | char *line1 = NULL; |
| 702 | size_t len1 = 0; |
Stephen Hemminger | 21a85d3 | 2011-07-11 10:38:10 -0700 | [diff] [blame^] | 703 | ssize_t cc1; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 704 | |
| 705 | if ((cc1 = getline(&line1, &len1, in)) < 0) { |
| 706 | fprintf(stderr, "Missing continuation line\n"); |
| 707 | return cc1; |
| 708 | } |
| 709 | |
| 710 | ++cmdlineno; |
| 711 | *cp = 0; |
| 712 | |
| 713 | cp = strchr(line1, '#'); |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 714 | if (cp) |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 715 | *cp = '\0'; |
| 716 | |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 717 | *lenp = strlen(*linep) + strlen(line1) + 1; |
| 718 | *linep = realloc(*linep, *lenp); |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 719 | if (!*linep) { |
| 720 | fprintf(stderr, "Out of memory\n"); |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 721 | *lenp = 0; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 722 | return -1; |
| 723 | } |
| 724 | cc += cc1 - 2; |
| 725 | strcat(*linep, line1); |
| 726 | free(line1); |
| 727 | } |
| 728 | return cc; |
| 729 | } |
| 730 | |
| 731 | /* split command line into argument vector */ |
| 732 | int makeargs(char *line, char *argv[], int maxargs) |
| 733 | { |
| 734 | static const char ws[] = " \t\r\n"; |
| 735 | char *cp; |
| 736 | int argc = 0; |
| 737 | |
| 738 | for (cp = strtok(line, ws); cp; cp = strtok(NULL, ws)) { |
| 739 | if (argc >= (maxargs - 1)) { |
| 740 | fprintf(stderr, "Too many arguments to command\n"); |
| 741 | exit(1); |
| 742 | } |
| 743 | argv[argc++] = cp; |
| 744 | } |
| 745 | argv[argc] = NULL; |
| 746 | |
| 747 | return argc; |
| 748 | } |