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busybox/networking/ip.c
Denys Vlasenko 12389889c0 ip: better --help 
Was:
    Usage: ip [OPTIONS] address|route|link|tunnel|neigh|rule [COMMAND]

    ip [OPTIONS] OBJECT [COMMAND]
    where OBJECT := address|route|link|tunnel|neigh|rule
    OPTIONS := -f[amily] inet|inet6|link | -o[neline]

User: instead of repeating list of OBJECTs twice, you could at least
show available COMMANDs...

Now:
    Usage: ip [OPTIONS] address|route|link|tunnel|neigh|rule [COMMAND]

    OPTIONS := -f[amily] inet|inet6|link | -o[neline]
    COMMAND :=
    ip addr add|del IFADDR dev IFACE | show|flush [dev IFACE] [to PREFIX]
    ip route list|flush|add|del|change|append|replace|test ROUTE
    ip link set IFACE [up|down] [arp on|off] | show [IFACE]
    ip tunnel add|change|del|show [NAME]
        [mode ipip|gre|sit]
        [remote ADDR] [local ADDR] [ttl TTL]
    ip neigh show|flush [to PREFIX] [dev DEV] [nud STATE]
    ip rule [list] | add|del SELECTOR ACTION

While at it, tweak tc --help too (it stays disabled, thus no effect)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-21 14:27:07 +01:00

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/* vi: set sw=4 ts=4: */
/*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
* Changes:
* Rani Assaf <rani@magic.metawire.com> 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.
//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))
//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
//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)
#include "libbb.h"
#include "libiproute/utils.h"
#include "libiproute/ip_common.h"
typedef int FAST_FUNC (*ip_func_ptr_t)(char**);
#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
#if ENABLE_IPADDR
int ipaddr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int ipaddr_main(int argc UNUSED_PARAM, char **argv)
{
return ip_do(do_ipaddr, argv);
}
#endif
#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
#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
#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 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
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