X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=networking%2Fip.c;h=fb2f5e2da65a88f1c1f2653913b3777aa7e28972;hb=d38ca03946000f0837e9a0e04937499509db54c4;hp=9903c6800cb2bb53d677771a877721533a20c905;hpb=3246c0de12efe901661cceca76c94ac00aae661e;p=oweals%2Fbusybox.git diff --git a/networking/ip.c b/networking/ip.c index 9903c6800..fb2f5e2da 100644 --- a/networking/ip.c +++ b/networking/ip.c @@ -1,18 +1,87 @@ /* 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 + * Rani Assaf 980929: resolve addresses * Bernhard Reutner-Fischer rewrote to use index_in_substr_array */ +/* 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" @@ -24,12 +93,14 @@ || ENABLE_FEATURE_IP_TUNNEL \ || ENABLE_FEATURE_IP_RULE -static int NORETURN ip_print_help(char **argv UNUSED_PARAM) +static int FAST_FUNC ip_print_help(char **argv UNUSED_PARAM) { bb_show_usage(); } -static int ip_do(int (*ip_func)(char **argv), char **argv) +typedef int FAST_FUNC (*ip_func_ptr_t)(char**); + +static int ip_do(ip_func_ptr_t ip_func, char **argv) { argv = ip_parse_common_args(argv + 1); return ip_func(argv); @@ -76,47 +147,31 @@ int ip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int ip_main(int argc UNUSED_PARAM, char **argv) { static const char keywords[] ALIGN1 = - USE_FEATURE_IP_ADDRESS("address\0") - USE_FEATURE_IP_ROUTE("route\0") - USE_FEATURE_IP_LINK("link\0") - USE_FEATURE_IP_TUNNEL("tunnel\0" "tunl\0") - USE_FEATURE_IP_RULE("rule\0") + 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") ; - 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 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,) }; - int (*ip_func)(char**) = ip_print_help; + ip_func_ptr_t ip_func; + int key; argv = ip_parse_common_args(argv + 1); - if (*argv) { - int key = index_in_substrings(keywords, *argv); - argv++; -#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 - } + key = *argv ? index_in_substrings(keywords, *argv++) : -1; + ip_func = ip_func_ptrs[key + 1]; + return ip_func(argv); }