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 Fischer rewrote to use index_in_substr_array
  14  */
  15
  16 #include "busybox.h"
  17
  18 #include "libiproute/utils.h"
  19 #include "libiproute/ip_common.h"
  20
  21 static int ATTRIBUTE_NORETURN ip_print_help(int ATTRIBUTE_UNUSED ac, char ATTRIBUTE_UNUSED **av)
  22 {
  23         bb_show_usage();
  24 }
  25
  26 static int (*ip_func)(int argc, char **argv) = ip_print_help;
  27
  28 static int ip_do(int argc, char **argv)
  29 {
  30         ip_parse_common_args(&argc, &argv);
  31         return ip_func(argc-1, argv+1);
  32 }
  33
  34 #if ENABLE_FEATURE_IP_ADDRESS
  35 int ipaddr_main(int argc, char **argv);
  36 int ipaddr_main(int argc, char **argv)
  37 {
  38     ip_func = do_ipaddr;
  39     return ip_do(argc, argv);
  40 }
  41 #endif
  42 #if ENABLE_FEATURE_IP_LINK
  43 int iplink_main(int argc, char **argv);
  44 int iplink_main(int argc, char **argv)
  45 {
  46     ip_func = do_iplink;
  47     return ip_do(argc, argv);
  48 }
  49 #endif
  50 #if ENABLE_FEATURE_IP_ROUTE
  51 int iproute_main(int argc, char **argv);
  52 int iproute_main(int argc, char **argv)
  53 {
  54     ip_func = do_iproute;
  55     return ip_do(argc, argv);
  56 }
  57 #endif
  58 #if ENABLE_FEATURE_IP_RULE
  59 int iprule_main(int argc, char **argv);
  60 int iprule_main(int argc, char **argv)
  61 {
  62     ip_func = do_iprule;
  63     return ip_do(argc, argv);
  64 }
  65 #endif
  66 #if ENABLE_FEATURE_IP_TUNNEL
  67 int iptunnel_main(int argc, char **argv);
  68 int iptunnel_main(int argc, char **argv)
  69 {
  70     ip_func = do_iptunnel;
  71     return ip_do(argc, argv);
  72 }
  73 #endif
  74
  75
  76 int ip_main(int argc, char **argv);
  77 int ip_main(int argc, char **argv)
  78 {
  79         const char * const keywords[] = {
  80                 USE_FEATURE_IP_ADDRESS("address",)
  81                 USE_FEATURE_IP_ROUTE("route",)
  82                 USE_FEATURE_IP_LINK("link",)
  83                 USE_FEATURE_IP_TUNNEL("tunnel", "tunl",)
  84                 USE_FEATURE_IP_RULE("rule",)
  85                 NULL
  86         };
  87         enum {
  88                 USE_FEATURE_IP_ADDRESS(IP_addr,)
  89                 USE_FEATURE_IP_ROUTE(IP_route,)
  90                 USE_FEATURE_IP_LINK(IP_link,)
  91                 USE_FEATURE_IP_TUNNEL(IP_tunnel, IP_tunl,)
  92                 USE_FEATURE_IP_RULE(IP_rule,)
  93                 IP_none
  94         };
  95
  96         ip_parse_common_args(&argc, &argv);
  97         if (argc > 1) {
  98                 int key = index_in_substr_array(keywords, argv[1]);
  99                 argc -= 2;
 100                 argv += 2;
 101 #if ENABLE_FEATURE_IP_ADDRESS
 102                 if (key == IP_addr)
 103                         ip_func = do_ipaddr;
 104 #endif
 105 #if ENABLE_FEATURE_IP_ROUTE
 106                 if (key == IP_route)
 107                         ip_func = do_iproute;
 108 #endif
 109 #if ENABLE_FEATURE_IP_LINK
 110                 if (key == IP_link)
 111                         ip_func = do_iplink;
 112 #endif
 113 #if ENABLE_FEATURE_IP_TUNNEL
 114                 if (key == IP_tunnel || key == IP_tunl)
 115                         ip_func = do_iptunnel;
 116 #endif
 117 #if ENABLE_FEATURE_IP_RULE
 118                 if (key == IP_rule)
 119                         ip_func = do_iprule;
 120 #endif
 121         }
 122         return (ip_func(argc, argv));
 123 }