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ip: make ip aliases individually selectable

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2016-12-22 22:30:13 +01:00
parent 8d0dedf1f6
commit 05069b4682
1 changed files with 85 additions and 77 deletions
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162
networking/ip.c
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@ -17,24 +17,72 @@
//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
//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
//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
//config: depends on IP || IPROUTE
//config: help
//config: Add support for routing table management to "ip".
//config:
@ -48,83 +96,35 @@
//config:config FEATURE_IP_TUNNEL
//config: bool "ip tunnel"
//config: default y
//config: depends on IP
//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
//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
//config: depends on IP || IPNEIGH
//config: help
//config: Add support for neighbor commands to "ip".
//config:
//config:config FEATURE_IP_SHORT_FORMS
//config: bool "Support short forms of ip commands"
//config: default y
//config: depends on IP
//config: help
//config: Also support short-form of ip <OBJECT> commands:
//config: ip addr -> ipaddr
//config: ip link -> iplink
//config: ip route -> iproute
//config: ip tunnel -> iptunnel
//config: ip rule -> iprule
//config: ip neigh -> ipneigh
//config:
//config: Say N unless you desparately need the short form of the ip
//config: object commands.
//config:
//config:config FEATURE_IP_RARE_PROTOCOLS
//config: bool "Support displaying rarely used link types"
//config: default n
//config: depends on IP
//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.
//config:
//config:config IPADDR
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_ADDRESS
//config:
//config:config IPLINK
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_LINK
//config:
//config:config IPROUTE
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_ROUTE
//config:
//config:config IPTUNNEL
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_TUNNEL
//config:
//config:config IPRULE
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_RULE
//config:
//config:config IPNEIGH
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_NEIGH
//applet:#if ENABLE_FEATURE_IP_ADDRESS || ENABLE_FEATURE_IP_ROUTE || ENABLE_FEATURE_IP_LINK || ENABLE_FEATURE_IP_TUNNEL || ENABLE_FEATURE_IP_RULE || ENABLE_FEATURE_IP_NEIGH
//applet:IF_IP(APPLET(ip, BB_DIR_SBIN, BB_SUID_DROP))
//applet:#endif
//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))
@ -133,6 +133,12 @@
//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
/* would need to make the " | " optional depending on more than one selected: */
//usage:#define ip_trivial_usage
@ -218,62 +224,57 @@
#include "libiproute/utils.h"
#include "libiproute/ip_common.h"
#if ENABLE_FEATURE_IP_ADDRESS \
|| ENABLE_FEATURE_IP_ROUTE \
|| ENABLE_FEATURE_IP_LINK \
|| ENABLE_FEATURE_IP_TUNNEL \
|| ENABLE_FEATURE_IP_RULE \
|| ENABLE_FEATURE_IP_NEIGH
static int FAST_FUNC ip_print_help(char **argv UNUSED_PARAM)
{
bb_show_usage();
}
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_FEATURE_IP_ADDRESS
#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_FEATURE_IP_LINK
#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_FEATURE_IP_ROUTE
#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_FEATURE_IP_RULE
#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_FEATURE_IP_TUNNEL
#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_FEATURE_IP_NEIGH
#if ENABLE_IPNEIGH
int ipneigh_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int ipneigh_main(int argc UNUSED_PARAM, char **argv)
{
@ -281,11 +282,16 @@ int ipneigh_main(int argc UNUSED_PARAM, char **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 =
static const char keywords[] ALIGN1 = ""
IF_FEATURE_IP_ADDRESS("address\0")
IF_FEATURE_IP_ROUTE("route\0")
IF_FEATURE_IP_ROUTE("r\0")
@ -310,10 +316,12 @@ int ip_main(int argc UNUSED_PARAM, char **argv)
int key;
argv = ip_parse_common_args(argv + 1);
key = *argv ? index_in_substrings(keywords, *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 /* any of ENABLE_FEATURE_IP_xxx is 1 */
#endif