X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=networking%2Fip.c;h=fb2f5e2da65a88f1c1f2653913b3777aa7e28972;hb=d38ca03946000f0837e9a0e04937499509db54c4;hp=c7816c8cc88f0b9588d919127a85eeb1a2eb3f5c;hpb=d46e6d1a55f1182b8aa2d621a2532bad3bc20ee9;p=oweals%2Fbusybox.git diff --git a/networking/ip.c b/networking/ip.c index c7816c8cc..fb2f5e2da 100644 --- a/networking/ip.c +++ b/networking/ip.c @@ -1,19 +1,88 @@ /* vi: set sw=4 ts=4: */ /* - * ip.c "ip" utility frontend. - * - * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. - * - * Authors: Alexey Kuznetsov, + * Licensed under GPLv2 or later, see file LICENSE in this source tree. * + * Authors: Alexey Kuznetsov, * * Changes: - * - * Rani Assaf 980929: resolve addresses - * Bernhard Fischer rewrote to use index_in_substr_array + * Rani Assaf 980929: resolve addresses + * Bernhard Reutner-Fischer rewrote to use index_in_substr_array */ -#include "busybox.h" +/* would need to make the " | " optional depending on more than one selected: */ +//usage:#define ip_trivial_usage +//usage: "[OPTIONS] {" +//usage: IF_FEATURE_IP_ADDRESS("address | ") +//usage: IF_FEATURE_IP_ROUTE("route | ") +//usage: IF_FEATURE_IP_LINK("link | ") +//usage: IF_FEATURE_IP_TUNNEL("tunnel | ") +//usage: IF_FEATURE_IP_RULE("rule") +//usage: "} {COMMAND}" +//usage:#define ip_full_usage "\n\n" +//usage: "ip [OPTIONS] OBJECT {COMMAND}\n" +//usage: "where OBJECT := {" +//usage: IF_FEATURE_IP_ADDRESS("address | ") +//usage: IF_FEATURE_IP_ROUTE("route | ") +//usage: IF_FEATURE_IP_LINK("link | ") +//usage: IF_FEATURE_IP_TUNNEL("tunnel | ") +//usage: IF_FEATURE_IP_RULE("rule") +//usage: "}\n" +//usage: "OPTIONS := { -f[amily] { inet | inet6 | link } | -o[neline] }" +//usage: +//usage:#define ipaddr_trivial_usage +//usage: "{ {add|del} IFADDR dev STRING | {show|flush}\n" +//usage: " [dev STRING] [to PREFIX] }" +//usage:#define ipaddr_full_usage "\n\n" +//usage: "ipaddr {add|delete} IFADDR dev STRING\n" +//usage: "ipaddr {show|flush} [dev STRING] [scope SCOPE-ID]\n" +//usage: " [to PREFIX] [label PATTERN]\n" +//usage: " IFADDR := PREFIX | ADDR peer PREFIX\n" +//usage: " [broadcast ADDR] [anycast ADDR]\n" +//usage: " [label STRING] [scope SCOPE-ID]\n" +//usage: " SCOPE-ID := [host | link | global | NUMBER]" +//usage: +//usage:#define iplink_trivial_usage +//usage: "{ set DEVICE { up | down | arp { on | off } | show [DEVICE] }" +//usage:#define iplink_full_usage "\n\n" +//usage: "iplink set DEVICE { up | down | arp | multicast { on | off } |\n" +//usage: " dynamic { on | off } |\n" +//usage: " mtu MTU }\n" +//usage: "iplink show [DEVICE]" +//usage: +//usage:#define iproute_trivial_usage +//usage: "{ list | flush | { add | del | change | append |\n" +//usage: " replace | monitor } ROUTE }" +//usage:#define iproute_full_usage "\n\n" +//usage: "iproute { list | flush } SELECTOR\n" +//usage: "iproute get ADDRESS [from ADDRESS iif STRING]\n" +//usage: " [oif STRING] [tos TOS]\n" +//usage: "iproute { add | del | change | append | replace | monitor } ROUTE\n" +//usage: " SELECTOR := [root PREFIX] [match PREFIX] [proto RTPROTO]\n" +//usage: " ROUTE := [TYPE] PREFIX [tos TOS] [proto RTPROTO]\n" +//usage: " [metric METRIC]" +//usage: +//usage:#define iprule_trivial_usage +//usage: "{[list | add | del] RULE}" +//usage:#define iprule_full_usage "\n\n" +//usage: "iprule [list | add | del] SELECTOR ACTION\n" +//usage: " SELECTOR := [from PREFIX] [to PREFIX] [tos TOS] [fwmark FWMARK]\n" +//usage: " [dev STRING] [pref NUMBER]\n" +//usage: " ACTION := [table TABLE_ID] [nat ADDRESS]\n" +//usage: " [prohibit | reject | unreachable]\n" +//usage: " [realms [SRCREALM/]DSTREALM]\n" +//usage: " TABLE_ID := [local | main | default | NUMBER]" +//usage: +//usage:#define iptunnel_trivial_usage +//usage: "{ add | change | del | show } [NAME]\n" +//usage: " [mode { ipip | gre | sit }]\n" +//usage: " [remote ADDR] [local ADDR] [ttl TTL]" +//usage:#define iptunnel_full_usage "\n\n" +//usage: "iptunnel { add | change | del | show } [NAME]\n" +//usage: " [mode { ipip | gre | sit }] [remote ADDR] [local ADDR]\n" +//usage: " [[i|o]seq] [[i|o]key KEY] [[i|o]csum]\n" +//usage: " [ttl TTL] [tos TOS] [[no]pmtudisc] [dev PHYS_DEV]" + +#include "libbb.h" #include "libiproute/utils.h" #include "libiproute/ip_common.h" @@ -24,108 +93,86 @@ || ENABLE_FEATURE_IP_TUNNEL \ || ENABLE_FEATURE_IP_RULE -static int ATTRIBUTE_NORETURN ip_print_help(int ATTRIBUTE_UNUSED ac, char ATTRIBUTE_UNUSED **av) +static int FAST_FUNC ip_print_help(char **argv UNUSED_PARAM) { bb_show_usage(); } -static int (*ip_func)(int argc, char **argv) = ip_print_help; +typedef int FAST_FUNC (*ip_func_ptr_t)(char**); -static int ip_do(int argc, char **argv) +static int ip_do(ip_func_ptr_t ip_func, char **argv) { - ip_parse_common_args(&argc, &argv); - return ip_func(argc-1, argv+1); + argv = ip_parse_common_args(argv + 1); + return ip_func(argv); } #if ENABLE_FEATURE_IP_ADDRESS -int ipaddr_main(int argc, char **argv); -int ipaddr_main(int argc, char **argv) +int ipaddr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int ipaddr_main(int argc UNUSED_PARAM, char **argv) { - ip_func = do_ipaddr; - return ip_do(argc, argv); + return ip_do(do_ipaddr, argv); } #endif #if ENABLE_FEATURE_IP_LINK -int iplink_main(int argc, char **argv); -int iplink_main(int argc, char **argv) +int iplink_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int iplink_main(int argc UNUSED_PARAM, char **argv) { - ip_func = do_iplink; - return ip_do(argc, argv); + return ip_do(do_iplink, argv); } #endif #if ENABLE_FEATURE_IP_ROUTE -int iproute_main(int argc, char **argv); -int iproute_main(int argc, char **argv) +int iproute_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int iproute_main(int argc UNUSED_PARAM, char **argv) { - ip_func = do_iproute; - return ip_do(argc, argv); + return ip_do(do_iproute, argv); } #endif #if ENABLE_FEATURE_IP_RULE -int iprule_main(int argc, char **argv); -int iprule_main(int argc, char **argv) +int iprule_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int iprule_main(int argc UNUSED_PARAM, char **argv) { - ip_func = do_iprule; - return ip_do(argc, argv); + return ip_do(do_iprule, argv); } #endif #if ENABLE_FEATURE_IP_TUNNEL -int iptunnel_main(int argc, char **argv); -int iptunnel_main(int argc, char **argv) +int iptunnel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int iptunnel_main(int argc UNUSED_PARAM, char **argv) { - ip_func = do_iptunnel; - return ip_do(argc, argv); + return ip_do(do_iptunnel, argv); } #endif -int ip_main(int argc, char **argv); -int ip_main(int argc, char **argv) +int ip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int ip_main(int argc UNUSED_PARAM, char **argv) { - const char * const keywords[] = { - USE_FEATURE_IP_ADDRESS("address",) - USE_FEATURE_IP_ROUTE("route",) - USE_FEATURE_IP_LINK("link",) - USE_FEATURE_IP_TUNNEL("tunnel", "tunl",) - USE_FEATURE_IP_RULE("rule",) - NULL - }; - enum { - USE_FEATURE_IP_ADDRESS(IP_addr,) - USE_FEATURE_IP_ROUTE(IP_route,) - USE_FEATURE_IP_LINK(IP_link,) - USE_FEATURE_IP_TUNNEL(IP_tunnel, IP_tunl,) - USE_FEATURE_IP_RULE(IP_rule,) - IP_none + static const char keywords[] ALIGN1 = + IF_FEATURE_IP_ADDRESS("address\0") + IF_FEATURE_IP_ROUTE("route\0") + IF_FEATURE_IP_ROUTE("r\0") + IF_FEATURE_IP_LINK("link\0") + IF_FEATURE_IP_TUNNEL("tunnel\0") + IF_FEATURE_IP_TUNNEL("tunl\0") + IF_FEATURE_IP_RULE("rule\0") + ; + static const ip_func_ptr_t ip_func_ptrs[] = { + ip_print_help, + IF_FEATURE_IP_ADDRESS(do_ipaddr,) + IF_FEATURE_IP_ROUTE(do_iproute,) + IF_FEATURE_IP_ROUTE(do_iproute,) + IF_FEATURE_IP_LINK(do_iplink,) + IF_FEATURE_IP_TUNNEL(do_iptunnel,) + IF_FEATURE_IP_TUNNEL(do_iptunnel,) + IF_FEATURE_IP_RULE(do_iprule,) }; + ip_func_ptr_t ip_func; + int key; - ip_parse_common_args(&argc, &argv); - if (argc > 1) { - int key = index_in_substr_array(keywords, argv[1]); - argc -= 2; - argv += 2; -#if ENABLE_FEATURE_IP_ADDRESS - if (key == IP_addr) - ip_func = do_ipaddr; -#endif -#if ENABLE_FEATURE_IP_ROUTE - if (key == IP_route) - ip_func = do_iproute; -#endif -#if ENABLE_FEATURE_IP_LINK - if (key == IP_link) - ip_func = do_iplink; -#endif -#if ENABLE_FEATURE_IP_TUNNEL - if (key == IP_tunnel || key == IP_tunl) - ip_func = do_iptunnel; -#endif -#if ENABLE_FEATURE_IP_RULE - if (key == IP_rule) - ip_func = do_iprule; -#endif - } - return (ip_func(argc, argv)); + argv = ip_parse_common_args(argv + 1); + key = *argv ? index_in_substrings(keywords, *argv++) : -1; + ip_func = ip_func_ptrs[key + 1]; + + return ip_func(argv); } #endif /* any of ENABLE_FEATURE_IP_xxx is 1 */