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 #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 ATTRIBUTE_NORETURN ip_print_help(int ATTRIBUTE_UNUSED ac, char ATTRIBUTE_UNUSED **av)
  28 {
  29         bb_show_usage();
  30 }
  31
  32 static int (*ip_func)(int argc, char **argv) = ip_print_help;
  33
  34 static int ip_do(int argc, char **argv)
  35 {
  36         ip_parse_common_args(&argc, &argv);
  37         return ip_func(argc-1, argv+1);
  38 }
  39
  40 #if ENABLE_FEATURE_IP_ADDRESS
  41 int ipaddr_main(int argc, char **argv);
  42 int ipaddr_main(int argc, char **argv)
  43 {
  44     ip_func = do_ipaddr;
  45     return ip_do(argc, argv);
  46 }
  47 #endif
  48 #if ENABLE_FEATURE_IP_LINK
  49 int iplink_main(int argc, char **argv);
  50 int iplink_main(int argc, char **argv)
  51 {
  52     ip_func = do_iplink;
  53     return ip_do(argc, argv);
  54 }
  55 #endif
  56 #if ENABLE_FEATURE_IP_ROUTE
  57 int iproute_main(int argc, char **argv);
  58 int iproute_main(int argc, char **argv)
  59 {
  60     ip_func = do_iproute;
  61     return ip_do(argc, argv);
  62 }
  63 #endif
  64 #if ENABLE_FEATURE_IP_RULE
  65 int iprule_main(int argc, char **argv);
  66 int iprule_main(int argc, char **argv)
  67 {
  68     ip_func = do_iprule;
  69     return ip_do(argc, argv);
  70 }
  71 #endif
  72 #if ENABLE_FEATURE_IP_TUNNEL
  73 int iptunnel_main(int argc, char **argv);
  74 int iptunnel_main(int argc, char **argv)
  75 {
  76     ip_func = do_iptunnel;
  77     return ip_do(argc, argv);
  78 }
  79 #endif
  80
  81
  82 int ip_main(int argc, char **argv);
  83 int ip_main(int argc, char **argv)
  84 {
  85         const char * const keywords[] = {
  86                 USE_FEATURE_IP_ADDRESS("address",)
  87                 USE_FEATURE_IP_ROUTE("route",)
  88                 USE_FEATURE_IP_LINK("link",)
  89                 USE_FEATURE_IP_TUNNEL("tunnel", "tunl",)
  90                 USE_FEATURE_IP_RULE("rule",)
  91                 NULL
  92         };
  93         enum {
  94                 USE_FEATURE_IP_ADDRESS(IP_addr,)
  95                 USE_FEATURE_IP_ROUTE(IP_route,)
  96                 USE_FEATURE_IP_LINK(IP_link,)
  97                 USE_FEATURE_IP_TUNNEL(IP_tunnel, IP_tunl,)
  98                 USE_FEATURE_IP_RULE(IP_rule,)
  99                 IP_none
 100         };
 101
 102         ip_parse_common_args(&argc, &argv);
 103         if (argc > 1) {
 104                 int key = index_in_substr_array(keywords, argv[1]);
 105                 argc -= 2;
 106                 argv += 2;
 107 #if ENABLE_FEATURE_IP_ADDRESS
 108                 if (key == IP_addr)
 109                         ip_func = do_ipaddr;
 110 #endif
 111 #if ENABLE_FEATURE_IP_ROUTE
 112                 if (key == IP_route)
 113                         ip_func = do_iproute;
 114 #endif
 115 #if ENABLE_FEATURE_IP_LINK
 116                 if (key == IP_link)
 117                         ip_func = do_iplink;
 118 #endif
 119 #if ENABLE_FEATURE_IP_TUNNEL
 120                 if (key == IP_tunnel || key == IP_tunl)
 121                         ip_func = do_iptunnel;
 122 #endif
 123 #if ENABLE_FEATURE_IP_RULE
 124                 if (key == IP_rule)
 125                         ip_func = do_iprule;
 126 #endif
 127         }
 128         return (ip_func(argc, argv));
 129 }
 130
 131 #endif /* any of ENABLE_FEATURE_IP_xxx is 1 */