networking/ip.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * ip.c         "ip" utility frontend.
   4  *
   5  * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
   6  *
   7  * Authors:     Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
   8  *
   9  *
  10  * Changes:
  11  *
  12  * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
  13  * Bernhard Reutner-Fischer rewrote to use index_in_substr_array
  14  */
  15
  16 #include "libbb.h"
  17
  18 #include "libiproute/utils.h"
  19 #include "libiproute/ip_common.h"
  20
  21 #if ENABLE_FEATURE_IP_ADDRESS \
  22  || ENABLE_FEATURE_IP_ROUTE \
  23  || ENABLE_FEATURE_IP_LINK \
  24  || ENABLE_FEATURE_IP_TUNNEL \
  25  || ENABLE_FEATURE_IP_RULE
  26
  27 static int NORETURN ip_print_help(char **argv UNUSED_PARAM)
  28 {
  29         bb_show_usage();
  30 }
  31
  32 static int ip_do(int (*ip_func)(char **argv), char **argv)
  33 {
  34         argv = ip_parse_common_args(argv + 1);
  35         return ip_func(argv);
  36 }
  37
  38 #if ENABLE_FEATURE_IP_ADDRESS
  39 int ipaddr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  40 int ipaddr_main(int argc UNUSED_PARAM, char **argv)
  41 {
  42         return ip_do(do_ipaddr, argv);
  43 }
  44 #endif
  45 #if ENABLE_FEATURE_IP_LINK
  46 int iplink_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  47 int iplink_main(int argc UNUSED_PARAM, char **argv)
  48 {
  49         return ip_do(do_iplink, argv);
  50 }
  51 #endif
  52 #if ENABLE_FEATURE_IP_ROUTE
  53 int iproute_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  54 int iproute_main(int argc UNUSED_PARAM, char **argv)
  55 {
  56         return ip_do(do_iproute, argv);
  57 }
  58 #endif
  59 #if ENABLE_FEATURE_IP_RULE
  60 int iprule_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  61 int iprule_main(int argc UNUSED_PARAM, char **argv)
  62 {
  63         return ip_do(do_iprule, argv);
  64 }
  65 #endif
  66 #if ENABLE_FEATURE_IP_TUNNEL
  67 int iptunnel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  68 int iptunnel_main(int argc UNUSED_PARAM, char **argv)
  69 {
  70         return ip_do(do_iptunnel, argv);
  71 }
  72 #endif
  73
  74
  75 int ip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  76 int ip_main(int argc UNUSED_PARAM, char **argv)
  77 {
  78         static const char keywords[] ALIGN1 =
  79                 USE_FEATURE_IP_ADDRESS("address\0")
  80                 USE_FEATURE_IP_ROUTE("route\0")
  81                 USE_FEATURE_IP_LINK("link\0")
  82                 USE_FEATURE_IP_TUNNEL("tunnel\0" "tunl\0")
  83                 USE_FEATURE_IP_RULE("rule\0")
  84                 ;
  85         enum {
  86                 USE_FEATURE_IP_ADDRESS(IP_addr,)
  87                 USE_FEATURE_IP_ROUTE(IP_route,)
  88                 USE_FEATURE_IP_LINK(IP_link,)
  89                 USE_FEATURE_IP_TUNNEL(IP_tunnel, IP_tunl,)
  90                 USE_FEATURE_IP_RULE(IP_rule,)
  91                 IP_none
  92         };
  93         int (*ip_func)(char**) = ip_print_help;
  94
  95         argv = ip_parse_common_args(argv + 1);
  96         if (*argv) {
  97                 int key = index_in_substrings(keywords, *argv);
  98                 argv++;
  99 #if ENABLE_FEATURE_IP_ADDRESS
 100                 if (key == IP_addr)
 101                         ip_func = do_ipaddr;
 102 #endif
 103 #if ENABLE_FEATURE_IP_ROUTE
 104                 if (key == IP_route)
 105                         ip_func = do_iproute;
 106 #endif
 107 #if ENABLE_FEATURE_IP_LINK
 108                 if (key == IP_link)
 109                         ip_func = do_iplink;
 110 #endif
 111 #if ENABLE_FEATURE_IP_TUNNEL
 112                 if (key == IP_tunnel || key == IP_tunl)
 113                         ip_func = do_iptunnel;
 114 #endif
 115 #if ENABLE_FEATURE_IP_RULE
 116                 if (key == IP_rule)
 117                         ip_func = do_iprule;
 118 #endif
 119         }
 120         return ip_func(argv);
 121 }
 122
 123 #endif /* any of ENABLE_FEATURE_IP_xxx is 1 */