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 "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 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) MAIN_EXTERNALLY_VISIBLE;
  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) MAIN_EXTERNALLY_VISIBLE;
  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) MAIN_EXTERNALLY_VISIBLE;
  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) MAIN_EXTERNALLY_VISIBLE;
  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) MAIN_EXTERNALLY_VISIBLE;
  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) MAIN_EXTERNALLY_VISIBLE;
  83 int ip_main(int argc, char **argv)
  84 {
  85         static const char keywords[] ALIGN1 =
  86                 USE_FEATURE_IP_ADDRESS("address\0")
  87                 USE_FEATURE_IP_ROUTE("route\0")
  88                 USE_FEATURE_IP_LINK("link\0")
  89                 USE_FEATURE_IP_TUNNEL("tunnel\0" "tunl\0")
  90                 USE_FEATURE_IP_RULE("rule\0")
  91                 ;
  92         enum {
  93                 USE_FEATURE_IP_ADDRESS(IP_addr,)
  94                 USE_FEATURE_IP_ROUTE(IP_route,)
  95                 USE_FEATURE_IP_LINK(IP_link,)
  96                 USE_FEATURE_IP_TUNNEL(IP_tunnel, IP_tunl,)
  97                 USE_FEATURE_IP_RULE(IP_rule,)
  98                 IP_none
  99         };
 100
 101         ip_parse_common_args(&argc, &argv);
 102         if (argc > 1) {
 103                 int key = index_in_substrings(keywords, argv[1]);
 104                 argc -= 2;
 105                 argv += 2;
 106 #if ENABLE_FEATURE_IP_ADDRESS
 107                 if (key == IP_addr)
 108                         ip_func = do_ipaddr;
 109 #endif
 110 #if ENABLE_FEATURE_IP_ROUTE
 111                 if (key == IP_route)
 112                         ip_func = do_iproute;
 113 #endif
 114 #if ENABLE_FEATURE_IP_LINK
 115                 if (key == IP_link)
 116                         ip_func = do_iplink;
 117 #endif
 118 #if ENABLE_FEATURE_IP_TUNNEL
 119                 if (key == IP_tunnel || key == IP_tunl)
 120                         ip_func = do_iptunnel;
 121 #endif
 122 #if ENABLE_FEATURE_IP_RULE
 123                 if (key == IP_rule)
 124                         ip_func = do_iprule;
 125 #endif
 126         }
 127         return ip_func(argc, argv);
 128 }
 129
 130 #endif /* any of ENABLE_FEATURE_IP_xxx is 1 */