networking/ip.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
   4  *
   5  * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
   6  *
   7  * Changes:
   8  * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
   9  * Bernhard Reutner-Fischer rewrote to use index_in_substr_array
  10  */
  11
  12 /* would need to make the " | " optional depending on more than one selected: */
  13 //usage:#define ip_trivial_usage
  14 //usage:       "[OPTIONS] {"
  15 //usage:        IF_FEATURE_IP_ADDRESS("address | ")
  16 //usage:        IF_FEATURE_IP_ROUTE("route | ")
  17 //usage:        IF_FEATURE_IP_LINK("link | ")
  18 //usage:        IF_FEATURE_IP_TUNNEL("tunnel | ")
  19 //usage:        IF_FEATURE_IP_RULE("rule")
  20 //usage:       "} {COMMAND}"
  21 //usage:#define ip_full_usage "\n\n"
  22 //usage:       "ip [OPTIONS] OBJECT {COMMAND}\n"
  23 //usage:       "where OBJECT := {"
  24 //usage:        IF_FEATURE_IP_ADDRESS("address | ")
  25 //usage:        IF_FEATURE_IP_ROUTE("route | ")
  26 //usage:        IF_FEATURE_IP_LINK("link | ")
  27 //usage:        IF_FEATURE_IP_TUNNEL("tunnel | ")
  28 //usage:        IF_FEATURE_IP_RULE("rule")
  29 //usage:       "}\n"
  30 //usage:       "OPTIONS := { -f[amily] { inet | inet6 | link } | -o[neline] }"
  31 //usage:
  32 //usage:#define ipaddr_trivial_usage
  33 //usage:       "{ {add|del} IFADDR dev STRING | {show|flush}\n"
  34 //usage:       "                [dev STRING] [to PREFIX] }"
  35 //usage:#define ipaddr_full_usage "\n\n"
  36 //usage:       "ipaddr {add|delete} IFADDR dev STRING\n"
  37 //usage:       "ipaddr {show|flush} [dev STRING] [scope SCOPE-ID]\n"
  38 //usage:       "        [to PREFIX] [label PATTERN]\n"
  39 //usage:       "        IFADDR := PREFIX | ADDR peer PREFIX\n"
  40 //usage:       "        [broadcast ADDR] [anycast ADDR]\n"
  41 //usage:       "        [label STRING] [scope SCOPE-ID]\n"
  42 //usage:       "        SCOPE-ID := [host | link | global | NUMBER]"
  43 //usage:
  44 //usage:#define iplink_trivial_usage
  45 //usage:       "{ set DEVICE { up | down | arp { on | off } | show [DEVICE] }"
  46 //usage:#define iplink_full_usage "\n\n"
  47 //usage:       "iplink set DEVICE { up | down | arp | multicast { on | off } |\n"
  48 //usage:       "                        dynamic { on | off } |\n"
  49 //usage:       "                        mtu MTU }\n"
  50 //usage:       "iplink show [DEVICE]"
  51 //usage:
  52 //usage:#define iproute_trivial_usage
  53 //usage:       "{ list | flush | add | del | change | append |\n"
  54 //usage:       "                replace | test } ROUTE"
  55 //usage:#define iproute_full_usage "\n\n"
  56 //usage:       "iproute { list | flush } SELECTOR\n"
  57 //usage:       "iproute get ADDRESS [from ADDRESS iif STRING]\n"
  58 //usage:       "        [oif STRING] [tos TOS]\n"
  59 //usage:       "iproute { add | del | change | append | replace | test } ROUTE\n"
  60 //usage:       "        SELECTOR := [root PREFIX] [match PREFIX] [proto RTPROTO]\n"
  61 //usage:       "        ROUTE := [TYPE] PREFIX [tos TOS] [proto RTPROTO] [metric METRIC]"
  62 //usage:
  63 //usage:#define iprule_trivial_usage
  64 //usage:       "{[list | add | del] RULE}"
  65 //usage:#define iprule_full_usage "\n\n"
  66 //usage:       "iprule [list | add | del] SELECTOR ACTION\n"
  67 //usage:       "        SELECTOR := [from PREFIX] [to PREFIX] [tos TOS] [fwmark FWMARK]\n"
  68 //usage:       "                        [dev STRING] [pref NUMBER]\n"
  69 //usage:       "        ACTION := [table TABLE_ID] [nat ADDRESS]\n"
  70 //usage:       "                        [prohibit | reject | unreachable]\n"
  71 //usage:       "                        [realms [SRCREALM/]DSTREALM]\n"
  72 //usage:       "        TABLE_ID := [local | main | default | NUMBER]"
  73 //usage:
  74 //usage:#define iptunnel_trivial_usage
  75 //usage:       "{ add | change | del | show } [NAME]\n"
  76 //usage:       "        [mode { ipip | gre | sit }]\n"
  77 //usage:       "        [remote ADDR] [local ADDR] [ttl TTL]"
  78 //usage:#define iptunnel_full_usage "\n\n"
  79 //usage:       "iptunnel { add | change | del | show } [NAME]\n"
  80 //usage:       "        [mode { ipip | gre | sit }] [remote ADDR] [local ADDR]\n"
  81 //usage:       "        [[i|o]seq] [[i|o]key KEY] [[i|o]csum]\n"
  82 //usage:       "        [ttl TTL] [tos TOS] [[no]pmtudisc] [dev PHYS_DEV]"
  83
  84 #include "libbb.h"
  85
  86 #include "libiproute/utils.h"
  87 #include "libiproute/ip_common.h"
  88
  89 #if ENABLE_FEATURE_IP_ADDRESS \
  90  || ENABLE_FEATURE_IP_ROUTE \
  91  || ENABLE_FEATURE_IP_LINK \
  92  || ENABLE_FEATURE_IP_TUNNEL \
  93  || ENABLE_FEATURE_IP_RULE
  94
  95 static int FAST_FUNC ip_print_help(char **argv UNUSED_PARAM)
  96 {
  97         bb_show_usage();
  98 }
  99
 100 typedef int FAST_FUNC (*ip_func_ptr_t)(char**);
 101
 102 static int ip_do(ip_func_ptr_t ip_func, char **argv)
 103 {
 104         argv = ip_parse_common_args(argv + 1);
 105         return ip_func(argv);
 106 }
 107
 108 #if ENABLE_FEATURE_IP_ADDRESS
 109 int ipaddr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 110 int ipaddr_main(int argc UNUSED_PARAM, char **argv)
 111 {
 112         return ip_do(do_ipaddr, argv);
 113 }
 114 #endif
 115 #if ENABLE_FEATURE_IP_LINK
 116 int iplink_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 117 int iplink_main(int argc UNUSED_PARAM, char **argv)
 118 {
 119         return ip_do(do_iplink, argv);
 120 }
 121 #endif
 122 #if ENABLE_FEATURE_IP_ROUTE
 123 int iproute_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 124 int iproute_main(int argc UNUSED_PARAM, char **argv)
 125 {
 126         return ip_do(do_iproute, argv);
 127 }
 128 #endif
 129 #if ENABLE_FEATURE_IP_RULE
 130 int iprule_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 131 int iprule_main(int argc UNUSED_PARAM, char **argv)
 132 {
 133         return ip_do(do_iprule, argv);
 134 }
 135 #endif
 136 #if ENABLE_FEATURE_IP_TUNNEL
 137 int iptunnel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 138 int iptunnel_main(int argc UNUSED_PARAM, char **argv)
 139 {
 140         return ip_do(do_iptunnel, argv);
 141 }
 142 #endif
 143
 144
 145 int ip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 146 int ip_main(int argc UNUSED_PARAM, char **argv)
 147 {
 148         static const char keywords[] ALIGN1 =
 149                 IF_FEATURE_IP_ADDRESS("address\0")
 150                 IF_FEATURE_IP_ROUTE("route\0")
 151                 IF_FEATURE_IP_ROUTE("r\0")
 152                 IF_FEATURE_IP_LINK("link\0")
 153                 IF_FEATURE_IP_TUNNEL("tunnel\0")
 154                 IF_FEATURE_IP_TUNNEL("tunl\0")
 155                 IF_FEATURE_IP_RULE("rule\0")
 156                 ;
 157         static const ip_func_ptr_t ip_func_ptrs[] = {
 158                 ip_print_help,
 159                 IF_FEATURE_IP_ADDRESS(do_ipaddr,)
 160                 IF_FEATURE_IP_ROUTE(do_iproute,)
 161                 IF_FEATURE_IP_ROUTE(do_iproute,)
 162                 IF_FEATURE_IP_LINK(do_iplink,)
 163                 IF_FEATURE_IP_TUNNEL(do_iptunnel,)
 164                 IF_FEATURE_IP_TUNNEL(do_iptunnel,)
 165                 IF_FEATURE_IP_RULE(do_iprule,)
 166         };
 167         ip_func_ptr_t ip_func;
 168         int key;
 169
 170         argv = ip_parse_common_args(argv + 1);
 171         key = *argv ? index_in_substrings(keywords, *argv++) : -1;
 172         ip_func = ip_func_ptrs[key + 1];
 173
 174         return ip_func(argv);
 175 }
 176
 177 #endif /* any of ENABLE_FEATURE_IP_xxx is 1 */