networking/ip.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * "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  * Changes:
  10  * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
  11  * Bernhard Reutner-Fischer rewrote to use index_in_substr_array
  12  */
  13
  14 #include "libbb.h"
  15
  16 #include "libiproute/utils.h"
  17 #include "libiproute/ip_common.h"
  18
  19 #if ENABLE_FEATURE_IP_ADDRESS \
  20  || ENABLE_FEATURE_IP_ROUTE \
  21  || ENABLE_FEATURE_IP_LINK \
  22  || ENABLE_FEATURE_IP_TUNNEL \
  23  || ENABLE_FEATURE_IP_RULE
  24
  25 static int FAST_FUNC ip_print_help(char **argv UNUSED_PARAM)
  26 {
  27         bb_show_usage();
  28 }
  29
  30 typedef int FAST_FUNC (*ip_func_ptr_t)(char**);
  31
  32 static int ip_do(ip_func_ptr_t ip_func, 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                 IF_FEATURE_IP_ADDRESS("address\0")
  80                 IF_FEATURE_IP_ROUTE("route\0")
  81                 IF_FEATURE_IP_ROUTE("r\0")
  82                 IF_FEATURE_IP_LINK("link\0")
  83                 IF_FEATURE_IP_TUNNEL("tunnel\0")
  84                 IF_FEATURE_IP_TUNNEL("tunl\0")
  85                 IF_FEATURE_IP_RULE("rule\0")
  86                 ;
  87         static const ip_func_ptr_t ip_func_ptrs[] = {
  88                 ip_print_help,
  89                 IF_FEATURE_IP_ADDRESS(do_ipaddr,)
  90                 IF_FEATURE_IP_ROUTE(do_iproute,)
  91                 IF_FEATURE_IP_ROUTE(do_iproute,)
  92                 IF_FEATURE_IP_LINK(do_iplink,)
  93                 IF_FEATURE_IP_TUNNEL(do_iptunnel,)
  94                 IF_FEATURE_IP_TUNNEL(do_iptunnel,)
  95                 IF_FEATURE_IP_RULE(do_iprule,)
  96         };
  97         ip_func_ptr_t ip_func;
  98         int key;
  99
 100         argv = ip_parse_common_args(argv + 1);
 101         key = *argv ? index_in_substrings(keywords, *argv++) : -1;
 102         ip_func = ip_func_ptrs[key + 1];
 103
 104         return ip_func(argv);
 105 }
 106
 107 #endif /* any of ENABLE_FEATURE_IP_xxx is 1 */