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> |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 15 | #include <math.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 16 | #include <unistd.h> |
| 17 | #include <syslog.h> |
| 18 | #include <fcntl.h> |
Strake | 5bd9dd4 | 2012-12-23 08:46:04 -0500 | [diff] [blame] | 19 | #include <limits.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 20 | #include <sys/socket.h> |
| 21 | #include <netinet/in.h> |
| 22 | #include <string.h> |
| 23 | #include <netdb.h> |
| 24 | #include <arpa/inet.h> |
osdl.org!shemminger | 5dfe556 | 2004-06-08 23:50:43 +0000 | [diff] [blame] | 25 | #include <asm/types.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 26 | #include <linux/pkt_sched.h> |
Strake | 5bd9dd4 | 2012-12-23 08:46:04 -0500 | [diff] [blame] | 27 | #include <linux/param.h> |
Eric W. Biederman | 0b218ab | 2015-03-15 14:49:35 -0500 | [diff] [blame] | 28 | #include <linux/if_arp.h> |
Eric W. Biederman | dacc5d4 | 2015-03-15 14:53:45 -0500 | [diff] [blame] | 29 | #include <linux/mpls.h> |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 30 | #include <time.h> |
| 31 | #include <sys/time.h> |
Hagen Paul Pfeifer | 30d10db | 2011-12-20 11:28:46 +0000 | [diff] [blame] | 32 | #include <errno.h> |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 33 | |
Eric W. Biederman | 0b218ab | 2015-03-15 14:49:35 -0500 | [diff] [blame] | 34 | #include "rt_names.h" |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 35 | #include "utils.h" |
Vadim Kochan | e998e11 | 2015-01-18 16:10:17 +0200 | [diff] [blame] | 36 | #include "namespace.h" |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 37 | |
Vadim Kochan | 79aa79d | 2014-12-23 00:13:58 +0200 | [diff] [blame] | 38 | int timestamp_short = 0; |
| 39 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 40 | int get_integer(int *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 41 | { |
| 42 | long res; |
| 43 | char *ptr; |
| 44 | |
| 45 | if (!arg || !*arg) |
| 46 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 47 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 48 | res = strtol(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 49 | |
| 50 | /* If there were no digits at all, strtol() stores |
| 51 | * the original value of nptr in *endptr (and returns 0). |
| 52 | * In particular, if *nptr is not '\0' but **endptr is '\0' on return, |
| 53 | * the entire string is valid. |
| 54 | */ |
| 55 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 56 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 57 | |
| 58 | /* If an underflow occurs, strtol() returns LONG_MIN. |
| 59 | * If an overflow occurs, strtol() returns LONG_MAX. |
| 60 | * In both cases, errno is set to ERANGE. |
| 61 | */ |
| 62 | if ((res == LONG_MAX || res == LONG_MIN) && errno == ERANGE) |
| 63 | return -1; |
| 64 | |
| 65 | /* Outside range of int */ |
| 66 | if (res < INT_MIN || res > INT_MAX) |
| 67 | return -1; |
| 68 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 69 | *val = res; |
| 70 | return 0; |
| 71 | } |
| 72 | |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 73 | int mask2bits(__u32 netmask) |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 74 | { |
| 75 | unsigned bits = 0; |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 76 | __u32 mask = ntohl(netmask); |
| 77 | __u32 host = ~mask; |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 78 | |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 79 | /* a valid netmask must be 2^n - 1 */ |
| 80 | if ((host & (host + 1)) != 0) |
| 81 | return -1; |
| 82 | |
| 83 | for (; mask; mask <<= 1) |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 84 | ++bits; |
Stephen Hemminger | 4b270b1 | 2007-12-11 10:03:28 -0800 | [diff] [blame] | 85 | return bits; |
| 86 | } |
| 87 | |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 88 | static int get_netmask(unsigned *val, const char *arg, int base) |
| 89 | { |
| 90 | inet_prefix addr; |
| 91 | |
| 92 | if (!get_unsigned(val, arg, base)) |
| 93 | return 0; |
| 94 | |
| 95 | /* try coverting dotted quad to CIDR */ |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 96 | if (!get_addr_1(&addr, arg, AF_INET) && addr.family == AF_INET) { |
| 97 | int b = mask2bits(addr.data[0]); |
| 98 | |
| 99 | if (b >= 0) { |
| 100 | *val = b; |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 101 | return 0; |
Stephen Hemminger | 6b1ac65 | 2007-12-31 10:29:52 -0800 | [diff] [blame] | 102 | } |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | return -1; |
| 106 | } |
| 107 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 108 | int get_unsigned(unsigned *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 109 | { |
| 110 | unsigned long res; |
| 111 | char *ptr; |
| 112 | |
| 113 | if (!arg || !*arg) |
| 114 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 115 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 116 | res = strtoul(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 117 | |
| 118 | /* empty string or trailing non-digits */ |
| 119 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 120 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 121 | |
| 122 | /* overflow */ |
| 123 | if (res == ULONG_MAX && errno == ERANGE) |
| 124 | return -1; |
| 125 | |
| 126 | /* out side range of unsigned */ |
| 127 | if (res > UINT_MAX) |
| 128 | return -1; |
| 129 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 130 | *val = res; |
| 131 | return 0; |
| 132 | } |
| 133 | |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 134 | /* |
Gerrit Renker | db6b0cf | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 135 | * get_time_rtt is "translated" from a similar routine "get_time" in |
| 136 | * tc_util.c. We don't use the exact same routine because tc passes |
| 137 | * microseconds to the kernel and the callers of get_time_rtt want to |
| 138 | * pass milliseconds (standard unit for rtt values since 2.6.27), and |
| 139 | * have a different assumption for the units of a "raw" number. |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 140 | */ |
Gerrit Renker | db6b0cf | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 141 | int get_time_rtt(unsigned *val, const char *arg, int *raw) |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 142 | { |
| 143 | double t; |
| 144 | unsigned long res; |
| 145 | char *p; |
| 146 | |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 147 | if (strchr(arg, '.') != NULL) { |
| 148 | t = strtod(arg, &p); |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 149 | if (t < 0.0) |
| 150 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 151 | |
Florian Westphal | 4d9a264 | 2014-11-11 01:38:21 +0100 | [diff] [blame] | 152 | /* no digits? */ |
| 153 | if (!p || p == arg) |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 154 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 155 | |
| 156 | /* over/underflow */ |
| 157 | if ((t == HUGE_VALF || t == HUGE_VALL) && errno == ERANGE) |
| 158 | return -1; |
| 159 | } else { |
| 160 | res = strtoul(arg, &p, 0); |
| 161 | |
Florian Westphal | 4d9a264 | 2014-11-11 01:38:21 +0100 | [diff] [blame] | 162 | /* empty string? */ |
| 163 | if (!p || p == arg) |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 164 | return -1; |
| 165 | |
| 166 | /* overflow */ |
| 167 | if (res == ULONG_MAX && errno == ERANGE) |
| 168 | return -1; |
| 169 | |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 170 | t = (double)res; |
| 171 | } |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 172 | |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 173 | if (p == arg) |
| 174 | return -1; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 175 | *raw = 1; |
| 176 | |
| 177 | if (*p) { |
| 178 | *raw = 0; |
| 179 | if (strcasecmp(p, "s") == 0 || strcasecmp(p, "sec")==0 || |
| 180 | strcasecmp(p, "secs")==0) |
Gerrit Renker | fca1dae | 2011-02-25 12:51:48 -0800 | [diff] [blame] | 181 | t *= 1000; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 182 | else if (strcasecmp(p, "ms") == 0 || strcasecmp(p, "msec")==0 || |
| 183 | strcasecmp(p, "msecs") == 0) |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 184 | t *= 1.0; /* allow suffix, do nothing */ |
| 185 | else |
| 186 | return -1; |
| 187 | } |
| 188 | |
| 189 | /* emulate ceil() without having to bring-in -lm and always be >= 1 */ |
| 190 | |
Gerrit Renker | db6b0cf | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 191 | *val = t; |
| 192 | if (*val < t) |
| 193 | *val += 1; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 194 | |
| 195 | return 0; |
| 196 | |
| 197 | } |
| 198 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 199 | int get_u64(__u64 *val, const char *arg, int base) |
| 200 | { |
| 201 | unsigned long long res; |
| 202 | char *ptr; |
| 203 | |
| 204 | if (!arg || !*arg) |
| 205 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 206 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 207 | res = strtoull(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 208 | |
| 209 | /* empty string or trailing non-digits */ |
| 210 | if (!ptr || ptr == arg || *ptr) |
| 211 | return -1; |
| 212 | |
| 213 | /* overflow */ |
| 214 | if (res == ULLONG_MAX && errno == ERANGE) |
| 215 | return -1; |
| 216 | |
| 217 | /* in case ULL is 128 bits */ |
| 218 | if (res > 0xFFFFFFFFFFFFFFFFULL) |
| 219 | return -1; |
| 220 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 221 | *val = res; |
| 222 | return 0; |
| 223 | } |
| 224 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 225 | int get_u32(__u32 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 226 | { |
| 227 | unsigned long res; |
| 228 | char *ptr; |
| 229 | |
| 230 | if (!arg || !*arg) |
| 231 | return -1; |
| 232 | res = strtoul(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 233 | |
| 234 | /* empty string or trailing non-digits */ |
| 235 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 236 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 237 | |
| 238 | /* overflow */ |
| 239 | if (res == ULONG_MAX && errno == ERANGE) |
| 240 | return -1; |
| 241 | |
| 242 | /* in case UL > 32 bits */ |
| 243 | if (res > 0xFFFFFFFFUL) |
| 244 | return -1; |
| 245 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 246 | *val = res; |
| 247 | return 0; |
| 248 | } |
| 249 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 250 | int get_u16(__u16 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 251 | { |
| 252 | unsigned long res; |
| 253 | char *ptr; |
| 254 | |
| 255 | if (!arg || !*arg) |
| 256 | return -1; |
| 257 | res = strtoul(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 258 | |
| 259 | /* empty string or trailing non-digits */ |
| 260 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 261 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 262 | |
| 263 | /* overflow */ |
| 264 | if (res == ULONG_MAX && errno == ERANGE) |
| 265 | return -1; |
| 266 | |
| 267 | if (res > 0xFFFFUL) |
| 268 | return -1; |
| 269 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 270 | *val = res; |
| 271 | return 0; |
| 272 | } |
| 273 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 274 | int get_u8(__u8 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 275 | { |
| 276 | unsigned long res; |
| 277 | char *ptr; |
| 278 | |
| 279 | if (!arg || !*arg) |
| 280 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 281 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 282 | res = strtoul(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 283 | /* empty string or trailing non-digits */ |
| 284 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 285 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 286 | |
| 287 | /* overflow */ |
| 288 | if (res == ULONG_MAX && errno == ERANGE) |
| 289 | return -1; |
| 290 | |
| 291 | if (res > 0xFFUL) |
| 292 | return -1; |
| 293 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 294 | *val = res; |
| 295 | return 0; |
| 296 | } |
| 297 | |
Hagen Paul Pfeifer | 30d10db | 2011-12-20 11:28:46 +0000 | [diff] [blame] | 298 | int get_s32(__s32 *val, const char *arg, int base) |
| 299 | { |
| 300 | long res; |
| 301 | char *ptr; |
| 302 | |
| 303 | errno = 0; |
| 304 | |
| 305 | if (!arg || !*arg) |
| 306 | return -1; |
| 307 | res = strtol(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 308 | if (!ptr || ptr == arg || *ptr) |
Hagen Paul Pfeifer | 30d10db | 2011-12-20 11:28:46 +0000 | [diff] [blame] | 309 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 310 | if ((res == LONG_MIN || res == LONG_MAX) && errno == ERANGE) |
| 311 | return -1; |
| 312 | if (res > INT32_MAX || res < INT32_MIN) |
| 313 | return -1; |
| 314 | |
Hagen Paul Pfeifer | 30d10db | 2011-12-20 11:28:46 +0000 | [diff] [blame] | 315 | *val = res; |
| 316 | return 0; |
| 317 | } |
| 318 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 319 | int get_s16(__s16 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 320 | { |
| 321 | long res; |
| 322 | char *ptr; |
| 323 | |
| 324 | if (!arg || !*arg) |
| 325 | return -1; |
| 326 | res = strtol(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 327 | if (!ptr || ptr == arg || *ptr) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 328 | return -1; |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 329 | if ((res == LONG_MIN || res == LONG_MAX) && errno == ERANGE) |
| 330 | return -1; |
| 331 | if (res > 0x7FFF || res < -0x8000) |
| 332 | return -1; |
| 333 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 334 | *val = res; |
| 335 | return 0; |
| 336 | } |
| 337 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 338 | int get_s8(__s8 *val, const char *arg, int base) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 339 | { |
| 340 | long res; |
| 341 | char *ptr; |
| 342 | |
| 343 | if (!arg || !*arg) |
| 344 | return -1; |
| 345 | res = strtol(arg, &ptr, base); |
Stephen Hemminger | 697ac63 | 2013-04-12 11:40:57 -0700 | [diff] [blame] | 346 | if (!ptr || ptr == arg || *ptr) |
| 347 | return -1; |
| 348 | if ((res == LONG_MIN || res == LONG_MAX) && errno == ERANGE) |
| 349 | return -1; |
| 350 | if (res > 0x7F || res < -0x80) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 351 | return -1; |
| 352 | *val = res; |
| 353 | return 0; |
| 354 | } |
| 355 | |
Stephen Hemminger | cafa6c8 | 2008-10-27 10:27:27 -0700 | [diff] [blame] | 356 | /* This uses a non-standard parsing (ie not inet_aton, or inet_pton) |
| 357 | * because of legacy choice to parse 10.8 as 10.8.0.0 not 10.0.0.8 |
| 358 | */ |
| 359 | static int get_addr_ipv4(__u8 *ap, const char *cp) |
| 360 | { |
| 361 | int i; |
| 362 | |
| 363 | for (i = 0; i < 4; i++) { |
| 364 | unsigned long n; |
| 365 | char *endp; |
| 366 | |
| 367 | n = strtoul(cp, &endp, 0); |
| 368 | if (n > 255) |
| 369 | return -1; /* bogus network value */ |
| 370 | |
| 371 | if (endp == cp) /* no digits */ |
| 372 | return -1; |
| 373 | |
| 374 | ap[i] = n; |
| 375 | |
| 376 | if (*endp == '\0') |
| 377 | break; |
| 378 | |
| 379 | if (i == 3 || *endp != '.') |
| 380 | return -1; /* extra characters */ |
| 381 | cp = endp + 1; |
| 382 | } |
| 383 | |
| 384 | return 1; |
| 385 | } |
| 386 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 387 | 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] | 388 | { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 389 | memset(addr, 0, sizeof(*addr)); |
| 390 | |
| 391 | if (strcmp(name, "default") == 0 || |
| 392 | strcmp(name, "all") == 0 || |
| 393 | strcmp(name, "any") == 0) { |
Eric W. Biederman | dacc5d4 | 2015-03-15 14:53:45 -0500 | [diff] [blame] | 394 | if ((family == AF_DECnet) || (family == AF_MPLS)) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 395 | return -1; |
| 396 | addr->family = family; |
| 397 | addr->bytelen = (family == AF_INET6 ? 16 : 4); |
| 398 | addr->bitlen = -1; |
| 399 | return 0; |
| 400 | } |
| 401 | |
Eric W. Biederman | 0b218ab | 2015-03-15 14:49:35 -0500 | [diff] [blame] | 402 | if (family == AF_PACKET) { |
| 403 | int len; |
| 404 | len = ll_addr_a2n((char *)&addr->data, sizeof(addr->data), name); |
| 405 | if (len < 0) |
| 406 | return -1; |
| 407 | |
| 408 | addr->family = AF_PACKET; |
| 409 | addr->bytelen = len; |
| 410 | addr->bitlen = len * 8; |
| 411 | return 0; |
| 412 | } |
| 413 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 414 | if (strchr(name, ':')) { |
| 415 | addr->family = AF_INET6; |
| 416 | if (family != AF_UNSPEC && family != AF_INET6) |
| 417 | return -1; |
| 418 | if (inet_pton(AF_INET6, name, addr->data) <= 0) |
| 419 | return -1; |
| 420 | addr->bytelen = 16; |
| 421 | addr->bitlen = -1; |
| 422 | return 0; |
| 423 | } |
| 424 | |
| 425 | if (family == AF_DECnet) { |
| 426 | struct dn_naddr dna; |
| 427 | addr->family = AF_DECnet; |
| 428 | if (dnet_pton(AF_DECnet, name, &dna) <= 0) |
| 429 | return -1; |
| 430 | memcpy(addr->data, dna.a_addr, 2); |
| 431 | addr->bytelen = 2; |
| 432 | addr->bitlen = -1; |
| 433 | return 0; |
| 434 | } |
| 435 | |
Eric W. Biederman | dacc5d4 | 2015-03-15 14:53:45 -0500 | [diff] [blame] | 436 | if (family == AF_MPLS) { |
| 437 | int i; |
| 438 | addr->family = AF_MPLS; |
| 439 | if (mpls_pton(AF_MPLS, name, addr->data) <= 0) |
| 440 | return -1; |
| 441 | addr->bytelen = 4; |
| 442 | addr->bitlen = 20; |
| 443 | /* How many bytes do I need? */ |
| 444 | for (i = 0; i < 8; i++) { |
| 445 | if (ntohl(addr->data[i]) & MPLS_LS_S_MASK) { |
| 446 | addr->bytelen = (i + 1)*4; |
| 447 | break; |
| 448 | } |
| 449 | } |
| 450 | return 0; |
| 451 | } |
| 452 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 453 | addr->family = AF_INET; |
| 454 | if (family != AF_UNSPEC && family != AF_INET) |
| 455 | return -1; |
Stephen Hemminger | 94afda7 | 2008-10-14 15:02:16 -0700 | [diff] [blame] | 456 | |
Stephen Hemminger | cafa6c8 | 2008-10-27 10:27:27 -0700 | [diff] [blame] | 457 | if (get_addr_ipv4((__u8 *)addr->data, name) <= 0) |
Stephen Hemminger | 94afda7 | 2008-10-14 15:02:16 -0700 | [diff] [blame] | 458 | return -1; |
| 459 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 460 | addr->bytelen = 4; |
| 461 | addr->bitlen = -1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 462 | return 0; |
| 463 | } |
| 464 | |
Vadim Kochan | f3a2ddc | 2015-02-28 02:50:24 +0200 | [diff] [blame] | 465 | int af_bit_len(int af) |
| 466 | { |
| 467 | switch (af) { |
| 468 | case AF_INET6: |
| 469 | return 128; |
| 470 | case AF_INET: |
| 471 | return 32; |
| 472 | case AF_DECnet: |
| 473 | return 16; |
| 474 | case AF_IPX: |
| 475 | return 80; |
Eric W. Biederman | dacc5d4 | 2015-03-15 14:53:45 -0500 | [diff] [blame] | 476 | case AF_MPLS: |
| 477 | return 20; |
Vadim Kochan | f3a2ddc | 2015-02-28 02:50:24 +0200 | [diff] [blame] | 478 | } |
| 479 | |
| 480 | return 0; |
| 481 | } |
| 482 | |
| 483 | int af_byte_len(int af) |
| 484 | { |
| 485 | return af_bit_len(af) / 8; |
| 486 | } |
| 487 | |
osdl.net!shemminger | fb9b1d0 | 2005-02-07 18:15:04 +0000 | [diff] [blame] | 488 | int get_prefix_1(inet_prefix *dst, char *arg, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 489 | { |
| 490 | int err; |
| 491 | unsigned plen; |
| 492 | char *slash; |
| 493 | |
| 494 | memset(dst, 0, sizeof(*dst)); |
| 495 | |
| 496 | if (strcmp(arg, "default") == 0 || |
| 497 | strcmp(arg, "any") == 0 || |
| 498 | strcmp(arg, "all") == 0) { |
Thomas Graf | f7dd7e5 | 2015-05-05 02:14:16 +0200 | [diff] [blame] | 499 | if ((family == AF_DECnet) || (family == AF_MPLS)) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 500 | return -1; |
| 501 | dst->family = family; |
| 502 | dst->bytelen = 0; |
| 503 | dst->bitlen = 0; |
| 504 | return 0; |
| 505 | } |
| 506 | |
| 507 | slash = strchr(arg, '/'); |
| 508 | if (slash) |
| 509 | *slash = 0; |
osdl.net!shemminger | fb9b1d0 | 2005-02-07 18:15:04 +0000 | [diff] [blame] | 510 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 511 | err = get_addr_1(dst, arg, family); |
| 512 | if (err == 0) { |
Roopa Prabhu | 106ca27 | 2015-03-17 19:18:28 -0700 | [diff] [blame] | 513 | dst->bitlen = af_bit_len(dst->family); |
Vadim Kochan | f3a2ddc | 2015-02-28 02:50:24 +0200 | [diff] [blame] | 514 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 515 | if (slash) { |
Andreas Henriksson | 5a0d1cb | 2007-12-08 00:41:34 +0100 | [diff] [blame] | 516 | if (get_netmask(&plen, slash+1, 0) |
Stephen Hemminger | 656111b | 2014-08-04 10:30:35 -0700 | [diff] [blame] | 517 | || plen > dst->bitlen) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 518 | err = -1; |
| 519 | goto done; |
| 520 | } |
net[shemminger]!shemminger | f082b64 | 2005-03-30 18:16:10 +0000 | [diff] [blame] | 521 | dst->flags |= PREFIXLEN_SPECIFIED; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 522 | dst->bitlen = plen; |
| 523 | } |
| 524 | } |
| 525 | done: |
| 526 | if (slash) |
| 527 | *slash = '/'; |
| 528 | return err; |
| 529 | } |
| 530 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 531 | int get_addr(inet_prefix *dst, const char *arg, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 532 | { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 533 | if (get_addr_1(dst, arg, family)) { |
| 534 | fprintf(stderr, "Error: an inet address is expected rather than \"%s\".\n", arg); |
| 535 | exit(1); |
| 536 | } |
| 537 | return 0; |
| 538 | } |
| 539 | |
osdl.net!shemminger | fb9b1d0 | 2005-02-07 18:15:04 +0000 | [diff] [blame] | 540 | int get_prefix(inet_prefix *dst, char *arg, int family) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 541 | { |
| 542 | if (family == AF_PACKET) { |
| 543 | fprintf(stderr, "Error: \"%s\" may be inet prefix, but it is not allowed in this context.\n", arg); |
| 544 | exit(1); |
| 545 | } |
| 546 | if (get_prefix_1(dst, arg, family)) { |
| 547 | fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", arg); |
| 548 | exit(1); |
| 549 | } |
| 550 | return 0; |
| 551 | } |
| 552 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 553 | __u32 get_addr32(const char *name) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 554 | { |
| 555 | inet_prefix addr; |
| 556 | if (get_addr_1(&addr, name, AF_INET)) { |
| 557 | fprintf(stderr, "Error: an IP address is expected rather than \"%s\"\n", name); |
| 558 | exit(1); |
| 559 | } |
| 560 | return addr.data[0]; |
| 561 | } |
| 562 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 563 | void incomplete_command(void) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 564 | { |
| 565 | fprintf(stderr, "Command line is not complete. Try option \"help\"\n"); |
| 566 | exit(-1); |
| 567 | } |
| 568 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 569 | void missarg(const char *key) |
| 570 | { |
| 571 | fprintf(stderr, "Error: argument \"%s\" is required\n", key); |
| 572 | exit(-1); |
| 573 | } |
| 574 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 575 | void invarg(const char *msg, const char *arg) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 576 | { |
| 577 | fprintf(stderr, "Error: argument \"%s\" is wrong: %s\n", arg, msg); |
| 578 | exit(-1); |
| 579 | } |
| 580 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 581 | void duparg(const char *key, const char *arg) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 582 | { |
| 583 | fprintf(stderr, "Error: duplicate \"%s\": \"%s\" is the second value.\n", key, arg); |
| 584 | exit(-1); |
| 585 | } |
| 586 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 587 | void duparg2(const char *key, const char *arg) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 588 | { |
| 589 | fprintf(stderr, "Error: either \"%s\" is duplicate, or \"%s\" is a garbage.\n", key, arg); |
| 590 | exit(-1); |
| 591 | } |
| 592 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 593 | int matches(const char *cmd, const char *pattern) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 594 | { |
| 595 | int len = strlen(cmd); |
| 596 | if (len > strlen(pattern)) |
| 597 | return -1; |
| 598 | return memcmp(pattern, cmd, len); |
| 599 | } |
| 600 | |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 601 | 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] | 602 | { |
Stephen Hemminger | 9626dfd | 2006-12-05 09:59:59 -0800 | [diff] [blame] | 603 | const __u32 *a1 = a->data; |
| 604 | const __u32 *a2 = b->data; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 605 | int words = bits >> 0x05; |
| 606 | |
| 607 | bits &= 0x1f; |
| 608 | |
| 609 | if (words) |
| 610 | if (memcmp(a1, a2, words << 2)) |
| 611 | return -1; |
| 612 | |
| 613 | if (bits) { |
| 614 | __u32 w1, w2; |
| 615 | __u32 mask; |
| 616 | |
| 617 | w1 = a1[words]; |
| 618 | w2 = a2[words]; |
| 619 | |
| 620 | mask = htonl((0xffffffff) << (0x20 - bits)); |
| 621 | |
| 622 | if ((w1 ^ w2) & mask) |
| 623 | return 1; |
| 624 | } |
| 625 | |
| 626 | return 0; |
| 627 | } |
| 628 | |
| 629 | int __iproute2_hz_internal; |
| 630 | |
| 631 | int __get_hz(void) |
| 632 | { |
| 633 | char name[1024]; |
| 634 | int hz = 0; |
| 635 | FILE *fp; |
| 636 | |
| 637 | if (getenv("HZ")) |
| 638 | return atoi(getenv("HZ")) ? : HZ; |
| 639 | |
| 640 | if (getenv("PROC_NET_PSCHED")) { |
| 641 | snprintf(name, sizeof(name)-1, "%s", getenv("PROC_NET_PSCHED")); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 642 | } else if (getenv("PROC_ROOT")) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 643 | snprintf(name, sizeof(name)-1, "%s/net/psched", getenv("PROC_ROOT")); |
| 644 | } else { |
| 645 | strcpy(name, "/proc/net/psched"); |
| 646 | } |
| 647 | fp = fopen(name, "r"); |
| 648 | |
| 649 | if (fp) { |
| 650 | unsigned nom, denom; |
| 651 | if (fscanf(fp, "%*08x%*08x%08x%08x", &nom, &denom) == 2) |
| 652 | if (nom == 1000000) |
| 653 | hz = denom; |
| 654 | fclose(fp); |
| 655 | } |
| 656 | if (hz) |
| 657 | return hz; |
| 658 | return HZ; |
| 659 | } |
| 660 | |
net[shemminger]!shemminger | 5e8bc63 | 2005-03-14 18:44:54 +0000 | [diff] [blame] | 661 | int __iproute2_user_hz_internal; |
| 662 | |
| 663 | int __get_user_hz(void) |
| 664 | { |
| 665 | return sysconf(_SC_CLK_TCK); |
| 666 | } |
| 667 | |
Eric W. Biederman | 26dcdf3 | 2015-03-15 14:48:32 -0500 | [diff] [blame] | 668 | 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] | 669 | { |
| 670 | switch (af) { |
| 671 | case AF_INET: |
| 672 | case AF_INET6: |
| 673 | return inet_ntop(af, addr, buf, buflen); |
Eric W. Biederman | dacc5d4 | 2015-03-15 14:53:45 -0500 | [diff] [blame] | 674 | case AF_MPLS: |
| 675 | return mpls_ntop(af, addr, buf, buflen); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 676 | case AF_IPX: |
| 677 | return ipx_ntop(af, addr, buf, buflen); |
| 678 | case AF_DECnet: |
| 679 | { |
| 680 | struct dn_naddr dna = { 2, { 0, 0, }}; |
| 681 | memcpy(dna.a_addr, addr, 2); |
| 682 | return dnet_ntop(af, &dna, buf, buflen); |
| 683 | } |
Eric W. Biederman | 0b218ab | 2015-03-15 14:49:35 -0500 | [diff] [blame] | 684 | case AF_PACKET: |
| 685 | return ll_addr_n2a(addr, len, ARPHRD_VOID, buf, buflen); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 686 | default: |
| 687 | return "???"; |
| 688 | } |
| 689 | } |
| 690 | |
Eric W. Biederman | 45c90d1 | 2015-03-15 14:50:03 -0500 | [diff] [blame] | 691 | int read_family(const char *name) |
| 692 | { |
| 693 | int family = AF_UNSPEC; |
| 694 | if (strcmp(name, "inet") == 0) |
| 695 | family = AF_INET; |
| 696 | else if (strcmp(name, "inet6") == 0) |
| 697 | family = AF_INET6; |
| 698 | else if (strcmp(name, "dnet") == 0) |
| 699 | family = AF_DECnet; |
| 700 | else if (strcmp(name, "link") == 0) |
| 701 | family = AF_PACKET; |
| 702 | else if (strcmp(name, "ipx") == 0) |
| 703 | family = AF_IPX; |
Eric W. Biederman | dacc5d4 | 2015-03-15 14:53:45 -0500 | [diff] [blame] | 704 | else if (strcmp(name, "mpls") == 0) |
| 705 | family = AF_MPLS; |
Eric W. Biederman | 45c90d1 | 2015-03-15 14:50:03 -0500 | [diff] [blame] | 706 | else if (strcmp(name, "bridge") == 0) |
| 707 | family = AF_BRIDGE; |
| 708 | return family; |
| 709 | } |
| 710 | |
| 711 | const char *family_name(int family) |
| 712 | { |
| 713 | if (family == AF_INET) |
| 714 | return "inet"; |
| 715 | if (family == AF_INET6) |
| 716 | return "inet6"; |
| 717 | if (family == AF_DECnet) |
| 718 | return "dnet"; |
| 719 | if (family == AF_PACKET) |
| 720 | return "link"; |
| 721 | if (family == AF_IPX) |
| 722 | return "ipx"; |
Eric W. Biederman | dacc5d4 | 2015-03-15 14:53:45 -0500 | [diff] [blame] | 723 | if (family == AF_MPLS) |
| 724 | return "mpls"; |
Eric W. Biederman | 45c90d1 | 2015-03-15 14:50:03 -0500 | [diff] [blame] | 725 | if (family == AF_BRIDGE) |
| 726 | return "bridge"; |
| 727 | return "???"; |
| 728 | } |
| 729 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 730 | #ifdef RESOLVE_HOSTNAMES |
| 731 | struct namerec |
| 732 | { |
| 733 | struct namerec *next; |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 734 | const char *name; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 735 | inet_prefix addr; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 736 | }; |
| 737 | |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 738 | #define NHASH 257 |
| 739 | static struct namerec *nht[NHASH]; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 740 | |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 741 | 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] | 742 | { |
| 743 | struct namerec *n; |
| 744 | struct hostent *h_ent; |
| 745 | unsigned hash; |
| 746 | static int notfirst; |
| 747 | |
| 748 | |
| 749 | if (af == AF_INET6 && ((__u32*)addr)[0] == 0 && |
| 750 | ((__u32*)addr)[1] == 0 && ((__u32*)addr)[2] == htonl(0xffff)) { |
| 751 | af = AF_INET; |
| 752 | addr += 12; |
| 753 | len = 4; |
| 754 | } |
| 755 | |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 756 | hash = *(__u32 *)(addr + len - 4) % NHASH; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 757 | |
| 758 | for (n = nht[hash]; n; n = n->next) { |
| 759 | if (n->addr.family == af && |
| 760 | n->addr.bytelen == len && |
| 761 | memcmp(n->addr.data, addr, len) == 0) |
| 762 | return n->name; |
| 763 | } |
| 764 | if ((n = malloc(sizeof(*n))) == NULL) |
| 765 | return NULL; |
| 766 | n->addr.family = af; |
| 767 | n->addr.bytelen = len; |
| 768 | n->name = NULL; |
| 769 | memcpy(n->addr.data, addr, len); |
| 770 | n->next = nht[hash]; |
| 771 | nht[hash] = n; |
| 772 | if (++notfirst == 1) |
| 773 | sethostent(1); |
| 774 | fflush(stdout); |
| 775 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 776 | if ((h_ent = gethostbyaddr(addr, len, af)) != NULL) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 777 | n->name = strdup(h_ent->h_name); |
| 778 | |
| 779 | /* Even if we fail, "negative" entry is remembered. */ |
| 780 | return n->name; |
| 781 | } |
| 782 | #endif |
| 783 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 784 | const char *format_host(int af, int len, const void *addr, |
osdl.org!shemminger | 4094db7 | 2004-06-02 20:22:08 +0000 | [diff] [blame] | 785 | char *buf, int buflen) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 786 | { |
| 787 | #ifdef RESOLVE_HOSTNAMES |
| 788 | if (resolve_hosts) { |
Stephen Hemminger | 7dec1bf | 2008-05-08 09:11:04 -0700 | [diff] [blame] | 789 | const char *n; |
| 790 | |
Vadim Kochan | f3a2ddc | 2015-02-28 02:50:24 +0200 | [diff] [blame] | 791 | len = len <= 0 ? af_byte_len(af) : len; |
| 792 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 793 | if (len > 0 && |
| 794 | (n = resolve_address(addr, len, af)) != NULL) |
| 795 | return n; |
| 796 | } |
| 797 | #endif |
Eric W. Biederman | 26dcdf3 | 2015-03-15 14:48:32 -0500 | [diff] [blame] | 798 | return rt_addr_n2a(af, len, addr, buf, buflen); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 799 | } |
| 800 | |
| 801 | |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 802 | 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] | 803 | { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 804 | char *ptr = buf; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 805 | int i; |
| 806 | |
| 807 | for (i=0; i<len; i++) { |
| 808 | if (blen < 3) |
| 809 | break; |
| 810 | sprintf(ptr, "%02x", str[i]); |
| 811 | ptr += 2; |
| 812 | blen -= 2; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 813 | } |
| 814 | return buf; |
| 815 | } |
| 816 | |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 817 | __u8* hexstring_a2n(const char *str, __u8 *buf, int blen) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 818 | { |
| 819 | int cnt = 0; |
Jiri Pirko | 316c234 | 2014-05-15 15:10:21 +0200 | [diff] [blame] | 820 | char *endptr; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 821 | |
Jiri Pirko | 316c234 | 2014-05-15 15:10:21 +0200 | [diff] [blame] | 822 | if (strlen(str) % 2) |
| 823 | return NULL; |
| 824 | while (cnt < blen && strlen(str) > 1) { |
| 825 | unsigned int tmp; |
| 826 | char tmpstr[3]; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 827 | |
Jiri Pirko | 316c234 | 2014-05-15 15:10:21 +0200 | [diff] [blame] | 828 | strncpy(tmpstr, str, 2); |
| 829 | tmpstr[2] = '\0'; |
| 830 | tmp = strtoul(tmpstr, &endptr, 16); |
| 831 | if (errno != 0 || tmp > 0xFF || *endptr != '\0') |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 832 | return NULL; |
Jiri Pirko | 316c234 | 2014-05-15 15:10:21 +0200 | [diff] [blame] | 833 | buf[cnt++] = tmp; |
| 834 | str += 2; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 835 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 836 | return buf; |
| 837 | } |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 838 | |
| 839 | int print_timestamp(FILE *fp) |
| 840 | { |
| 841 | struct timeval tv; |
Vadim Kochan | 79aa79d | 2014-12-23 00:13:58 +0200 | [diff] [blame] | 842 | struct tm *tm; |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 843 | |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 844 | gettimeofday(&tv, NULL); |
Vadim Kochan | 79aa79d | 2014-12-23 00:13:58 +0200 | [diff] [blame] | 845 | tm = localtime(&tv.tv_sec); |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 846 | |
Vadim Kochan | 79aa79d | 2014-12-23 00:13:58 +0200 | [diff] [blame] | 847 | if (timestamp_short) { |
| 848 | char tshort[40]; |
| 849 | |
| 850 | strftime(tshort, sizeof(tshort), "%Y-%m-%dT%H:%M:%S", tm); |
| 851 | fprintf(fp, "[%s.%06ld] ", tshort, tv.tv_usec); |
| 852 | } else { |
| 853 | char *tstr = asctime(tm); |
| 854 | |
| 855 | tstr[strlen(tstr)-1] = 0; |
| 856 | fprintf(fp, "Timestamp: %s %ld usec\n", |
| 857 | tstr, tv.tv_usec); |
| 858 | } |
| 859 | |
shemminger | 90f9302 | 2005-06-07 21:55:55 +0000 | [diff] [blame] | 860 | return 0; |
| 861 | } |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 862 | |
| 863 | int cmdlineno; |
| 864 | |
| 865 | /* Like glibc getline but handle continuation lines and comments */ |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 866 | ssize_t getcmdline(char **linep, size_t *lenp, FILE *in) |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 867 | { |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 868 | ssize_t cc; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 869 | char *cp; |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 870 | |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 871 | if ((cc = getline(linep, lenp, in)) < 0) |
| 872 | return cc; /* eof or error */ |
| 873 | ++cmdlineno; |
| 874 | |
| 875 | cp = strchr(*linep, '#'); |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 876 | if (cp) |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 877 | *cp = '\0'; |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 878 | |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 879 | while ((cp = strstr(*linep, "\\\n")) != NULL) { |
| 880 | char *line1 = NULL; |
| 881 | size_t len1 = 0; |
Stephen Hemminger | 21a85d3 | 2011-07-11 10:38:10 -0700 | [diff] [blame] | 882 | ssize_t cc1; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 883 | |
| 884 | if ((cc1 = getline(&line1, &len1, in)) < 0) { |
| 885 | fprintf(stderr, "Missing continuation line\n"); |
| 886 | return cc1; |
| 887 | } |
| 888 | |
| 889 | ++cmdlineno; |
| 890 | *cp = 0; |
| 891 | |
| 892 | cp = strchr(line1, '#'); |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 893 | if (cp) |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 894 | *cp = '\0'; |
| 895 | |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 896 | *lenp = strlen(*linep) + strlen(line1) + 1; |
| 897 | *linep = realloc(*linep, *lenp); |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 898 | if (!*linep) { |
| 899 | fprintf(stderr, "Out of memory\n"); |
Andreas Henriksson | d21e883 | 2007-10-12 10:56:42 +0200 | [diff] [blame] | 900 | *lenp = 0; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 901 | return -1; |
| 902 | } |
| 903 | cc += cc1 - 2; |
| 904 | strcat(*linep, line1); |
| 905 | free(line1); |
| 906 | } |
| 907 | return cc; |
| 908 | } |
| 909 | |
| 910 | /* split command line into argument vector */ |
| 911 | int makeargs(char *line, char *argv[], int maxargs) |
| 912 | { |
| 913 | static const char ws[] = " \t\r\n"; |
| 914 | char *cp; |
| 915 | int argc = 0; |
| 916 | |
| 917 | for (cp = strtok(line, ws); cp; cp = strtok(NULL, ws)) { |
| 918 | if (argc >= (maxargs - 1)) { |
| 919 | fprintf(stderr, "Too many arguments to command\n"); |
| 920 | exit(1); |
| 921 | } |
| 922 | argv[argc++] = cp; |
| 923 | } |
| 924 | argv[argc] = NULL; |
| 925 | |
| 926 | return argc; |
| 927 | } |
WANG Cong | aa574cd | 2013-10-16 22:03:48 -0700 | [diff] [blame] | 928 | |
| 929 | int inet_get_addr(const char *src, __u32 *dst, struct in6_addr *dst6) |
| 930 | { |
| 931 | if (strchr(src, ':')) |
| 932 | return inet_pton(AF_INET6, src, dst6); |
| 933 | else |
| 934 | return inet_pton(AF_INET, src, dst); |
| 935 | } |
Vadim Kochan | ddb1129 | 2015-01-13 20:14:24 +0200 | [diff] [blame] | 936 | |
| 937 | void print_nlmsg_timestamp(FILE *fp, const struct nlmsghdr *n) |
| 938 | { |
| 939 | char *tstr; |
| 940 | time_t secs = ((__u32*)NLMSG_DATA(n))[0]; |
| 941 | long usecs = ((__u32*)NLMSG_DATA(n))[1]; |
| 942 | tstr = asctime(localtime(&secs)); |
| 943 | tstr[strlen(tstr)-1] = 0; |
| 944 | fprintf(fp, "Timestamp: %s %lu us\n", tstr, usecs); |
| 945 | } |
Vadim Kochan | e998e11 | 2015-01-18 16:10:17 +0200 | [diff] [blame] | 946 | |
| 947 | static int on_netns(char *nsname, void *arg) |
| 948 | { |
| 949 | struct netns_func *f = arg; |
| 950 | |
| 951 | if (netns_switch(nsname)) |
| 952 | return -1; |
| 953 | |
| 954 | return f->func(nsname, f->arg); |
| 955 | } |
| 956 | |
| 957 | static int on_netns_label(char *nsname, void *arg) |
| 958 | { |
| 959 | printf("\nnetns: %s\n", nsname); |
| 960 | return on_netns(nsname, arg); |
| 961 | } |
| 962 | |
| 963 | int do_each_netns(int (*func)(char *nsname, void *arg), void *arg, |
| 964 | bool show_label) |
| 965 | { |
| 966 | struct netns_func nsf = { .func = func, .arg = arg }; |
| 967 | |
| 968 | if (show_label) |
| 969 | return netns_foreach(on_netns_label, &nsf); |
| 970 | |
| 971 | return netns_foreach(on_netns, &nsf); |
| 972 | } |
Vadim Kochan | b217df1 | 2015-02-13 22:14:03 +0200 | [diff] [blame] | 973 | |
| 974 | char *int_to_str(int val, char *buf) |
| 975 | { |
| 976 | sprintf(buf, "%d", val); |
| 977 | return buf; |
| 978 | } |