X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=networking%2Fip.c;h=0f52b19dd6371803020babc5866275a00e38fd5e;hb=89193f985bf50af702e0f98a3c86573277c03287;hp=9250484aab019e343a0eeefd37906263a527d6b1;hpb=ab1878245ca6d53e5f9477904b660295ae7de8dd;p=oweals%2Fbusybox.git diff --git a/networking/ip.c b/networking/ip.c index 9250484aa..0f52b19dd 100644 --- a/networking/ip.c +++ b/networking/ip.c @@ -1,112 +1,349 @@ +/* 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 */ +//config:config IP +//config: bool "ip" +//config: default y +//config: select PLATFORM_LINUX +//config: help +//config: The "ip" applet is a TCP/IP interface configuration and routing +//config: utility. You generally don't need "ip" to use busybox with +//config: TCP/IP. +//config: +//config:config IPADDR +//config: bool "ipaddr" +//config: default y +//config: select FEATURE_IP_ADDRESS +//config: select PLATFORM_LINUX +//config: help +//config: Support short form of ip addr: ipaddr +//config: +//config:config IPLINK +//config: bool "iplink" +//config: default y +//config: select FEATURE_IP_LINK +//config: select PLATFORM_LINUX +//config: help +//config: Support short form of ip link: iplink +//config: +//config:config IPROUTE +//config: bool "iproute" +//config: default y +//config: select FEATURE_IP_ROUTE +//config: select PLATFORM_LINUX +//config: help +//config: Support short form of ip route: iproute +//config: +//config:config IPTUNNEL +//config: bool "iptunnel" +//config: default y +//config: select FEATURE_IP_TUNNEL +//config: select PLATFORM_LINUX +//config: help +//config: Support short form of ip tunnel: iptunnel +//config: +//config:config IPRULE +//config: bool "iprule" +//config: default y +//config: select FEATURE_IP_RULE +//config: select PLATFORM_LINUX +//config: help +//config: Support short form of ip rule: iprule +//config: +//config:config IPNEIGH +//config: bool "ipneigh" +//config: default y +//config: select FEATURE_IP_NEIGH +//config: select PLATFORM_LINUX +//config: help +//config: Support short form of ip neigh: ipneigh +//config: +//config:config FEATURE_IP_ADDRESS +//config: bool "ip address" +//config: default y +//config: depends on IP || IPADDR +//config: help +//config: Address manipulation support for the "ip" applet. +//config: +//config:config FEATURE_IP_LINK +//config: bool "ip link" +//config: default y +//config: depends on IP || IPLINK +//config: help +//config: Configure network devices with "ip". +//config: +//config:config FEATURE_IP_ROUTE +//config: bool "ip route" +//config: default y +//config: depends on IP || IPROUTE +//config: help +//config: Add support for routing table management to "ip". +//config: +//config:config FEATURE_IP_ROUTE_DIR +//config: string "ip route configuration directory" +//config: default "/etc/iproute2" +//config: depends on FEATURE_IP_ROUTE +//config: help +//config: Location of the "ip" applet routing configuration. +//config: +//config:config FEATURE_IP_TUNNEL +//config: bool "ip tunnel" +//config: default y +//config: depends on IP || IPTUNNEL +//config: help +//config: Add support for tunneling commands to "ip". +//config: +//config:config FEATURE_IP_RULE +//config: bool "ip rule" +//config: default y +//config: depends on IP || IPRULE +//config: help +//config: Add support for rule commands to "ip". +//config: +//config:config FEATURE_IP_NEIGH +//config: bool "ip neighbor" +//config: default y +//config: depends on IP || IPNEIGH +//config: help +//config: Add support for neighbor commands to "ip". +//config: +//config:config FEATURE_IP_RARE_PROTOCOLS +//config: bool "Support displaying rarely used link types" +//config: default n +//config: depends on IP || IPADDR || IPLINK || IPROUTE || IPTUNNEL || IPRULE || IPNEIGH +//config: help +//config: If you are not going to use links of type "frad", "econet", +//config: "bif" etc, you probably don't need to enable this. +//config: Ethernet, wireless, infrared, ppp/slip, ip tunnelling +//config: link types are supported without this option selected. -#include -#include -#include -#include -#include -#include -#include -#include +//applet:IF_IP(APPLET(ip, BB_DIR_SBIN, BB_SUID_DROP)) +//applet:IF_IPADDR(APPLET(ipaddr, BB_DIR_SBIN, BB_SUID_DROP)) +//applet:IF_IPLINK(APPLET(iplink, BB_DIR_SBIN, BB_SUID_DROP)) +//applet:IF_IPROUTE(APPLET(iproute, BB_DIR_SBIN, BB_SUID_DROP)) +//applet:IF_IPRULE(APPLET(iprule, BB_DIR_SBIN, BB_SUID_DROP)) +//applet:IF_IPTUNNEL(APPLET(iptunnel, BB_DIR_SBIN, BB_SUID_DROP)) +//applet:IF_IPNEIGH(APPLET(ipneigh, BB_DIR_SBIN, BB_SUID_DROP)) -#include "libiproute/utils.h" -#include "libiproute/ip_common.h" - -#include "busybox.h" - -#if 0 -int preferred_family = AF_UNSPEC; -int oneline = 0; -char * _SL_ = NULL; - -void ip_parse_common_args(int *argcp, char ***argvp) -{ - int argc = *argcp; - char **argv = *argvp; +//kbuild:lib-$(CONFIG_IP) += ip.o +//kbuild:lib-$(CONFIG_IPADDR) += ip.o +//kbuild:lib-$(CONFIG_IPLINK) += ip.o +//kbuild:lib-$(CONFIG_IPROUTE) += ip.o +//kbuild:lib-$(CONFIG_IPRULE) += ip.o +//kbuild:lib-$(CONFIG_IPTUNNEL) += ip.o +//kbuild:lib-$(CONFIG_IPNEIGH) += ip.o - while (argc > 1) { - char *opt = argv[1]; +//usage:#define ipaddr_trivial_usage +//usage: "add|del IFADDR dev IFACE | show|flush [dev IFACE] [to PREFIX]" +//usage:#define ipaddr_full_usage "\n\n" +//usage: "ipaddr add|change|replace|delete IFADDR dev IFACE\n" +//usage: "ipaddr show|flush [dev IFACE] [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 IFACE [up|down] [arp on|off] | show [IFACE]" +//usage:#define iplink_full_usage "\n\n" +//usage: "iplink set IFACE [up|down]\n" +//usage: " [arp on|off]\n" +//usage: " [dynamic on|off]\n" +//usage: " [multicast on|off]\n" +//usage: " [mtu MTU]\n" +//usage: "iplink show [IFACE]" +//usage: +//usage:#define iproute_trivial_usage +//usage: "list|flush|add|del|change|append|replace|test 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|test ROUTE\n" +//usage: " SELECTOR := [root PREFIX] [match PREFIX] [proto RTPROTO]\n" +//usage: " ROUTE := [TYPE] PREFIX [tos TOS] [proto RTPROTO] [metric METRIC]" +//usage: +//usage:#define iprule_trivial_usage +//usage: "[list] | add|del SELECTOR ACTION" +//usage:#define iprule_full_usage "\n\n" +//usage: " SELECTOR := [from PREFIX] [to PREFIX] [tos TOS] [fwmark FWMARK]\n" +//usage: " [dev IFACE] [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]" +//usage: +//usage:#define ipneigh_trivial_usage +//usage: "show|flush [to PREFIX] [dev DEV] [nud STATE]" +//usage:#define ipneigh_full_usage "" +//usage: +//usage:#if ENABLE_FEATURE_IP_ADDRESS || ENABLE_FEATURE_IP_ROUTE +//usage:# define IP_BAR_LINK "|" +//usage:#else +//usage:# define IP_BAR_LINK "" +//usage:#endif +//usage:#if ENABLE_FEATURE_IP_ADDRESS || ENABLE_FEATURE_IP_ROUTE || ENABLE_FEATURE_IP_LINK +//usage:# define IP_BAR_TUNNEL "|" +//usage:#else +//usage:# define IP_BAR_TUNNEL "" +//usage:#endif +//usage:#if ENABLE_FEATURE_IP_ADDRESS || ENABLE_FEATURE_IP_ROUTE || ENABLE_FEATURE_IP_LINK || ENABLE_FEATURE_IP_TUNNEL +//usage:# define IP_BAR_NEIGH "|" +//usage:#else +//usage:# define IP_BAR_NEIGH "" +//usage:#endif +//usage:#if ENABLE_FEATURE_IP_ADDRESS || ENABLE_FEATURE_IP_ROUTE || ENABLE_FEATURE_IP_LINK || ENABLE_FEATURE_IP_TUNNEL || ENABLE_FEATURE_IP_NEIGH +//usage:# define IP_BAR_RULE "|" +//usage:#else +//usage:# define IP_BAR_RULE "" +//usage:#endif +//usage: +//usage:#define ip_trivial_usage +//usage: "[OPTIONS] " +//usage: IF_FEATURE_IP_ADDRESS("address") +//usage: IF_FEATURE_IP_ROUTE( IF_FEATURE_IP_ADDRESS("|")"route") +//usage: IF_FEATURE_IP_LINK( IP_BAR_LINK "link") +//usage: IF_FEATURE_IP_TUNNEL( IP_BAR_TUNNEL"tunnel") +//usage: IF_FEATURE_IP_NEIGH( IP_BAR_NEIGH "neigh") +//usage: IF_FEATURE_IP_RULE( IP_BAR_RULE "rule") +//usage: " [COMMAND]" +//usage:#define ip_full_usage "\n\n" +//usage: "OPTIONS := -f[amily] inet|inet6|link | -o[neline]\n" +//usage: "COMMAND :=" +//usage: IF_FEATURE_IP_ADDRESS("\n" +//usage: "ip addr "ipaddr_trivial_usage) +//usage: IF_FEATURE_IP_ROUTE("\n" +//usage: "ip route "iproute_trivial_usage) +//usage: IF_FEATURE_IP_LINK("\n" +//usage: "ip link "iplink_trivial_usage) +//usage: IF_FEATURE_IP_TUNNEL("\n" +//usage: "ip tunnel "iptunnel_trivial_usage) +//usage: IF_FEATURE_IP_NEIGH("\n" +//usage: "ip neigh "ipneigh_trivial_usage) +//usage: IF_FEATURE_IP_RULE("\n" +//usage: "ip rule "iprule_trivial_usage) - if (strcmp(opt,"--") == 0) { - argc--; argv++; - break; - } +#include "libbb.h" - if (opt[0] != '-') - break; +#include "libiproute/utils.h" +#include "libiproute/ip_common.h" - if (opt[1] == '-') - opt++; +typedef int FAST_FUNC (*ip_func_ptr_t)(char**); - if (matches(opt, "-family") == 0) { - argc--; - argv++; - if (strcmp(argv[1], "inet") == 0) - preferred_family = AF_INET; - else if (strcmp(argv[1], "inet6") == 0) - preferred_family = AF_INET6; - else if (strcmp(argv[1], "link") == 0) - preferred_family = AF_PACKET; - else - invarg(argv[1], "invalid protocol family"); - } else if (strcmp(opt, "-4") == 0) { - preferred_family = AF_INET; - } else if (strcmp(opt, "-6") == 0) { - preferred_family = AF_INET6; - } else if (strcmp(opt, "-0") == 0) { - preferred_family = AF_PACKET; - } else if (matches(opt, "-oneline") == 0) { - ++oneline; - } else { - bb_show_usage(); - } - argc--; argv++; - } - _SL_ = oneline ? "\\" : "\n" ; +#if ENABLE_IPADDR \ + || ENABLE_IPLINK \ + || ENABLE_IPROUTE \ + || ENABLE_IPRULE \ + || ENABLE_IPTUNNEL \ + || ENABLE_IPNEIGH +static int ip_do(ip_func_ptr_t ip_func, char **argv) +{ + argv = ip_parse_common_args(argv + 1); + return ip_func(argv); } #endif -int ip_main(int argc, char **argv) +#if ENABLE_IPADDR +int ipaddr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int ipaddr_main(int argc UNUSED_PARAM, char **argv) { - int ret = EXIT_FAILURE; - - ip_parse_common_args(&argc, &argv); - - if (argc > 1) { -#ifdef CONFIG_FEATURE_IP_ADDRESS - if (matches(argv[1], "address") == 0) { - ret = do_ipaddr(argc-2, argv+2); - } + return ip_do(do_ipaddr, argv); +} #endif -#ifdef CONFIG_FEATURE_IP_ROUTE - if (matches(argv[1], "route") == 0) { - ret = do_iproute(argc-2, argv+2); - } +#if ENABLE_IPLINK +int iplink_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int iplink_main(int argc UNUSED_PARAM, char **argv) +{ + return ip_do(do_iplink, argv); +} #endif -#ifdef CONFIG_FEATURE_IP_LINK - if (matches(argv[1], "link") == 0) { - ret = do_iplink(argc-2, argv+2); - } +#if ENABLE_IPROUTE +int iproute_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int iproute_main(int argc UNUSED_PARAM, char **argv) +{ + return ip_do(do_iproute, argv); +} #endif -#ifdef CONFIG_FEATURE_IP_TUNNEL - if (matches(argv[1], "tunnel") == 0 || strcmp(argv[1], "tunl") == 0) { - ret = do_iptunnel(argc-2, argv+2); - } +#if ENABLE_IPRULE +int iprule_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int iprule_main(int argc UNUSED_PARAM, char **argv) +{ + return ip_do(do_iprule, argv); +} #endif - } - if (ret) { - bb_show_usage(); - } - return(EXIT_SUCCESS); +#if ENABLE_IPTUNNEL +int iptunnel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int iptunnel_main(int argc UNUSED_PARAM, char **argv) +{ + return ip_do(do_iptunnel, argv); } +#endif +#if ENABLE_IPNEIGH +int ipneigh_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int ipneigh_main(int argc UNUSED_PARAM, char **argv) +{ + return ip_do(do_ipneigh, argv); +} +#endif + +#if ENABLE_IP +static int FAST_FUNC ip_print_help(char **argv UNUSED_PARAM) +{ + bb_show_usage(); +} + +int ip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int ip_main(int argc UNUSED_PARAM, char **argv) +{ + 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") + IF_FEATURE_IP_NEIGH("neigh\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,) + IF_FEATURE_IP_NEIGH(do_ipneigh,) + }; + ip_func_ptr_t ip_func; + int key; + + argv = ip_parse_common_args(argv + 1); + if (ARRAY_SIZE(ip_func_ptrs) > 1 && *argv) + key = index_in_substrings(keywords, *argv++); + else + key = -1; + ip_func = ip_func_ptrs[key + 1]; + + return ip_func(argv); +} +#endif