imported original firmware WRT54GL_v4.30.11_11_US

1 files changed, 705 insertions, 0 deletions

diff --git a/release/src/router/busybox/networking/route.c b/release/src/router/busybox/networking/route.c
new file mode 100644
index 00000000..ff74cfd1
--- /dev/null
+++ b/release/src/router/busybox/networking/route.c
@@ -0,0 +1,705 @@
+/* route
+ *
+ * Similar to the standard Unix route, but with only the necessary
+ * parts for AF_INET and AF_INET6
+ *
+ * Bjorn Wesen, Axis Communications AB
+ *
+ * Author of the original route:
+ *              Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
+ *              (derived from FvK's 'route.c     1.70    01/04/94')
+ *
+ * This program is free software; you can redistribute it
+ * and/or  modify it under  the terms of  the GNU General
+ * Public  License as  published  by  the  Free  Software
+ * Foundation;  either  version 2 of the License, or  (at
+ * your option) any later version.
+ *
+ * $Id: route.c,v 1.1.3.1 2004/12/29 07:07:46 honor Exp $
+ *
+ * displayroute() code added by Vladimir N. Oleynik <dzo@simtreas.ru>
+ * adjustments by Larry Doolittle  <LRDoolittle@lbl.gov>
+ *
+ * IPV6 support added by Bart Visscher <magick@linux-fan.com>
+ */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include "inet_common.h"
+#include <net/route.h>
+#include <net/if.h>
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <unistd.h>
+#include <ctype.h>
+#include "busybox.h"
+
+#define _(x) x
+
+#define RTACTION_ADD   1
+#define RTACTION_DEL   2
+#define RTACTION_HELP  3
+#define RTACTION_FLUSH 4
+#define RTACTION_SHOW  5
+
+#define E_NOTFOUND      8
+#define E_SOCK          7
+#define E_LOOKUP        6
+#define E_VERSION       5
+#define E_USAGE         4
+#define E_OPTERR        3
+#define E_INTERN        2
+#define E_NOSUPP        1
+
+#if defined (SIOCADDRTOLD) || defined (RTF_IRTT)	/* route */
+#define HAVE_NEW_ADDRT 1
+#endif
+#ifdef RTF_IRTT			/* route */
+#define HAVE_RTF_IRTT 1
+#endif
+#ifdef RTF_REJECT		/* route */
+#define HAVE_RTF_REJECT 1
+#endif
+
+#if HAVE_NEW_ADDRT
+#define mask_in_addr(x) (((struct sockaddr_in *)&((x).rt_genmask))->sin_addr.s_addr)
+#define full_mask(x) (x)
+#else
+#define mask_in_addr(x) ((x).rt_genmask)
+#define full_mask(x) (((struct sockaddr_in *)&(x))->sin_addr.s_addr)
+#endif
+
+
+
+/* add or delete a route depending on action */
+
+static int INET_setroute(int action, int options, char **args)
+{
+	struct rtentry rt;
+	char target[128], gateway[128] = "NONE";
+	const char *netmask = bb_INET_default;
+	int xflag, isnet;
+	int skfd;
+
+	xflag = 0;
+
+	if (*args == NULL)
+		bb_show_usage();
+	if (strcmp(*args, "-net") == 0) {
+		xflag = 1;
+		args++;
+	} else if (strcmp(*args, "-host") == 0) {
+		xflag = 2;
+		args++;
+	}
+	if (*args == NULL)
+		bb_show_usage();
+	safe_strncpy(target, *args++, (sizeof target));
+
+	/* Clean out the RTREQ structure. */
+	memset((char *) &rt, 0, sizeof(struct rtentry));
+
+
+	if ((isnet =
+		 INET_resolve(target, (struct sockaddr_in *) &rt.rt_dst,
+					  xflag != 1)) < 0) {
+		bb_error_msg(_("can't resolve %s"), target);
+		return EXIT_FAILURE;	/* XXX change to E_something */
+	}
+
+	switch (xflag) {
+	case 1:
+		isnet = 1;
+		break;
+
+	case 2:
+		isnet = 0;
+		break;
+
+	default:
+		break;
+	}
+
+	/* Fill in the other fields. */
+	rt.rt_flags = (RTF_UP | RTF_HOST);
+	if (isnet)
+		rt.rt_flags &= ~RTF_HOST;
+
+	while (*args) {
+		if (strcmp(*args, "metric") == 0) {
+			int metric;
+
+			args++;
+			if (!*args || !isdigit(**args))
+				bb_show_usage();
+			metric = atoi(*args);
+#if HAVE_NEW_ADDRT
+			rt.rt_metric = metric + 1;
+#else
+			ENOSUPP("inet_setroute", "NEW_ADDRT (metric)");	/* XXX Fixme */
+#endif
+			args++;
+			continue;
+		}
+
+		if (strcmp(*args, "netmask") == 0) {
+			struct sockaddr mask;
+
+			args++;
+			if (!*args || mask_in_addr(rt))
+				bb_show_usage();
+			netmask = *args;
+			if ((isnet =
+				 INET_resolve(netmask, (struct sockaddr_in *) &mask,
+							  0)) < 0) {
+				bb_error_msg(_("can't resolve netmask %s"), netmask);
+				return E_LOOKUP;
+			}
+			rt.rt_genmask = full_mask(mask);
+			args++;
+			continue;
+		}
+
+		if (strcmp(*args, "gw") == 0 || strcmp(*args, "gateway") == 0) {
+			args++;
+			if (!*args)
+				bb_show_usage();
+			if (rt.rt_flags & RTF_GATEWAY)
+				bb_show_usage();
+			safe_strncpy(gateway, *args, (sizeof gateway));
+			if ((isnet =
+				 INET_resolve(gateway, (struct sockaddr_in *) &rt.rt_gateway,
+							  1)) < 0) {
+				bb_error_msg(_("can't resolve gw %s"), gateway);
+				return E_LOOKUP;
+			}
+			if (isnet) {
+				bb_error_msg(_("%s: cannot use a NETWORK as gateway!"), gateway);
+				return E_OPTERR;
+			}
+			rt.rt_flags |= RTF_GATEWAY;
+			args++;
+			continue;
+		}
+
+		if (strcmp(*args, "mss") == 0) {
+			args++;
+			rt.rt_flags |= RTF_MSS;
+			if (!*args)
+				bb_show_usage();
+			rt.rt_mss = atoi(*args);
+			args++;
+			if (rt.rt_mss < 64 || rt.rt_mss > 32768) {
+				bb_error_msg(_("Invalid MSS."));
+				return E_OPTERR;
+			}
+			continue;
+		}
+
+		if (strcmp(*args, "window") == 0) {
+			args++;
+			if (!*args)
+				bb_show_usage();
+			rt.rt_flags |= RTF_WINDOW;
+			rt.rt_window = atoi(*args);
+			args++;
+			if (rt.rt_window < 128) {
+				bb_error_msg(_("Invalid window."));
+				return E_OPTERR;
+			}
+			continue;
+		}
+
+		if (strcmp(*args, "irtt") == 0) {
+			args++;
+			if (!*args)
+				bb_show_usage();
+			args++;
+#if HAVE_RTF_IRTT
+			rt.rt_flags |= RTF_IRTT;
+			rt.rt_irtt = atoi(*(args - 1));
+			rt.rt_irtt *= (sysconf(_SC_CLK_TCK) / 100);	/* FIXME */
+#if 0					/* FIXME: do we need to check anything of this? */
+			if (rt.rt_irtt < 1 || rt.rt_irtt > (120 * HZ)) {
+				bb_error_msg(_("Invalid initial rtt."));
+				return E_OPTERR;
+			}
+#endif
+#else
+			ENOSUPP("inet_setroute", "RTF_IRTT");	/* XXX Fixme */
+#endif
+			continue;
+		}
+
+		if (strcmp(*args, "reject") == 0) {
+			args++;
+#if HAVE_RTF_REJECT
+			rt.rt_flags |= RTF_REJECT;
+#else
+			ENOSUPP("inet_setroute", "RTF_REJECT");	/* XXX Fixme */
+#endif
+			continue;
+		}
+		if (strcmp(*args, "mod") == 0) {
+			args++;
+			rt.rt_flags |= RTF_MODIFIED;
+			continue;
+		}
+		if (strcmp(*args, "dyn") == 0) {
+			args++;
+			rt.rt_flags |= RTF_DYNAMIC;
+			continue;
+		}
+		if (strcmp(*args, "reinstate") == 0) {
+			args++;
+			rt.rt_flags |= RTF_REINSTATE;
+			continue;
+		}
+		if (strcmp(*args, "device") == 0 || strcmp(*args, "dev") == 0) {
+			args++;
+			if (rt.rt_dev || *args == NULL)
+				bb_show_usage();
+			rt.rt_dev = *args++;
+			continue;
+		}
+		/* nothing matches */
+		if (!rt.rt_dev) {
+			rt.rt_dev = *args++;
+			if (*args)
+				bb_show_usage();	/* must be last to catch typos */
+		} else {
+			bb_show_usage();
+		}
+	}
+
+#if HAVE_RTF_REJECT
+	if ((rt.rt_flags & RTF_REJECT) && !rt.rt_dev)
+		rt.rt_dev = "lo";
+#endif
+
+	/* sanity checks.. */
+	if (mask_in_addr(rt)) {
+		unsigned long mask = mask_in_addr(rt);
+
+		mask = ~ntohl(mask);
+		if ((rt.rt_flags & RTF_HOST) && mask != 0xffffffff) {
+			bb_error_msg(_("netmask %.8x doesn't make sense with host route"),
+					  (unsigned int) mask);
+			return E_OPTERR;
+		}
+		if (mask & (mask + 1)) {
+			bb_error_msg(_("bogus netmask %s"), netmask);
+			return E_OPTERR;
+		}
+		mask = ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr;
+		if (mask & ~mask_in_addr(rt)) {
+			bb_error_msg(_("netmask doesn't match route address"));
+			return E_OPTERR;
+		}
+	}
+	/* Fill out netmask if still unset */
+	if ((action == RTACTION_ADD) && rt.rt_flags & RTF_HOST)
+		mask_in_addr(rt) = 0xffffffff;
+
+	/* Create a socket to the INET kernel. */
+	if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+		perror("socket");
+		return E_SOCK;
+	}
+	/* Tell the kernel to accept this route. */
+	if (action == RTACTION_DEL) {
+		if (ioctl(skfd, SIOCDELRT, &rt) < 0) {
+			perror("SIOCDELRT");
+			close(skfd);
+			return E_SOCK;
+		}
+	} else {
+		if (ioctl(skfd, SIOCADDRT, &rt) < 0) {
+			perror("SIOCADDRT");
+			close(skfd);
+			return E_SOCK;
+		}
+	}
+
+	/* Close the socket. */
+	(void) close(skfd);
+	return EXIT_SUCCESS;
+}
+
+#ifdef CONFIG_FEATURE_IPV6
+static int INET6_setroute(int action, int options, char **args)
+{
+	struct in6_rtmsg rt;
+	struct ifreq ifr;
+	struct sockaddr_in6 sa6;
+	char target[128], gateway[128] = "NONE";
+	int metric, prefix_len;
+	char *devname = NULL;
+	char *cp;
+	int skfd;
+
+	if (*args == NULL)
+		bb_show_usage();
+
+	strcpy(target, *args++);
+	if (!strcmp(target, "default")) {
+		prefix_len = 0;
+		memset(&sa6, 0, sizeof(sa6));
+	} else {
+		if ((cp = strchr(target, '/'))) {
+			prefix_len = atol(cp + 1);
+			if ((prefix_len < 0) || (prefix_len > 128))
+				bb_show_usage();
+			*cp = 0;
+		} else {
+			prefix_len = 128;
+		}
+		if (INET6_resolve(target, (struct sockaddr_in6 *) &sa6) < 0) {
+			bb_error_msg(_("can't resolve %s"), target);
+			return EXIT_FAILURE;	/* XXX change to E_something */
+		}
+	}
+
+	/* Clean out the RTREQ structure. */
+	memset((char *) &rt, 0, sizeof(struct in6_rtmsg));
+
+	memcpy(&rt.rtmsg_dst, sa6.sin6_addr.s6_addr, sizeof(struct in6_addr));
+
+	/* Fill in the other fields. */
+	rt.rtmsg_flags = RTF_UP;
+	if (prefix_len == 128)
+		rt.rtmsg_flags |= RTF_HOST;
+	rt.rtmsg_metric = 1;
+	rt.rtmsg_dst_len = prefix_len;
+
+	while (*args) {
+		if (!strcmp(*args, "metric")) {
+
+			args++;
+			if (!*args || !isdigit(**args))
+				bb_show_usage();
+			metric = atoi(*args);
+			rt.rtmsg_metric = metric;
+			args++;
+			continue;
+		}
+		if (!strcmp(*args, "gw") || !strcmp(*args, "gateway")) {
+			args++;
+			if (!*args)
+				bb_show_usage();
+			if (rt.rtmsg_flags & RTF_GATEWAY)
+				bb_show_usage();
+			strcpy(gateway, *args);
+			if (INET6_resolve(gateway, (struct sockaddr_in6 *) &sa6) < 0) {
+				bb_error_msg(_("can't resolve gw %s"), gateway);
+				return (E_LOOKUP);
+			}
+			memcpy(&rt.rtmsg_gateway, sa6.sin6_addr.s6_addr,
+				   sizeof(struct in6_addr));
+			rt.rtmsg_flags |= RTF_GATEWAY;
+			args++;
+			continue;
+		}
+		if (!strcmp(*args, "mod")) {
+			args++;
+			rt.rtmsg_flags |= RTF_MODIFIED;
+			continue;
+		}
+		if (!strcmp(*args, "dyn")) {
+			args++;
+			rt.rtmsg_flags |= RTF_DYNAMIC;
+			continue;
+		}
+		if (!strcmp(*args, "device") || !strcmp(*args, "dev")) {
+			args++;
+			if (!*args)
+				bb_show_usage();
+		} else if (args[1])
+			bb_show_usage();
+
+		devname = *args;
+		args++;
+	}
+
+	/* Create a socket to the INET6 kernel. */
+	if ((skfd = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
+		perror("socket");
+		return (E_SOCK);
+	}
+	if (devname) {
+		memset(&ifr, 0, sizeof(ifr));
+		strcpy(ifr.ifr_name, devname);
+
+		if (ioctl(skfd, SIOGIFINDEX, &ifr) < 0) {
+			perror("SIOGIFINDEX");
+			return (E_SOCK);
+		}
+		rt.rtmsg_ifindex = ifr.ifr_ifindex;
+	} else
+		rt.rtmsg_ifindex = 0;
+
+	/* Tell the kernel to accept this route. */
+	if (action == RTACTION_DEL) {
+		if (ioctl(skfd, SIOCDELRT, &rt) < 0) {
+			perror("SIOCDELRT");
+			close(skfd);
+			return (E_SOCK);
+		}
+	} else {
+		if (ioctl(skfd, SIOCADDRT, &rt) < 0) {
+			perror("SIOCADDRT");
+			close(skfd);
+			return (E_SOCK);
+		}
+	}
+
+	/* Close the socket. */
+	(void) close(skfd);
+	return (0);
+}
+#endif
+
+#ifndef RTF_UP
+/* Keep this in sync with /usr/src/linux/include/linux/route.h */
+#define RTF_UP          0x0001	/* route usable                 */
+#define RTF_GATEWAY     0x0002	/* destination is a gateway     */
+#define RTF_HOST        0x0004	/* host entry (net otherwise)   */
+#define RTF_REINSTATE   0x0008	/* reinstate route after tmout  */
+#define RTF_DYNAMIC     0x0010	/* created dyn. (by redirect)   */
+#define RTF_MODIFIED    0x0020	/* modified dyn. (by redirect)  */
+#define RTF_MTU         0x0040	/* specific MTU for this route  */
+#ifndef RTF_MSS
+#define RTF_MSS         RTF_MTU	/* Compatibility :-(            */
+#endif
+#define RTF_WINDOW      0x0080	/* per route window clamping    */
+#define RTF_IRTT        0x0100	/* Initial round trip time      */
+#define RTF_REJECT      0x0200	/* Reject route                 */
+#endif
+
+void displayroutes(int noresolve, int netstatfmt)
+{
+	char buff[256];
+	int nl = 0;
+	struct in_addr dest;
+	struct in_addr gw;
+	struct in_addr mask;
+	int flgs, ref, use, metric, mtu, win, ir;
+	char flags[64];
+	unsigned long int d, g, m;
+
+	char sdest[16], sgw[16];
+
+	FILE *fp = bb_xfopen("/proc/net/route", "r");
+
+	if (noresolve)
+		noresolve = 0x0fff;
+
+	printf("Kernel IP routing table\n");
+	printf
+		("Destination     Gateway         Genmask         Flags %s Iface\n",
+		 netstatfmt ? "  MSS Window  irtt" : "Metric Ref    Use");
+
+	while (fgets(buff, sizeof(buff), fp) != NULL) {
+		if (nl) {
+			int ifl = 0;
+			int numeric;
+			struct sockaddr_in s_addr;
+
+			while (buff[ifl] != ' ' && buff[ifl] != '\t' && buff[ifl] != '\0')
+				ifl++;
+			buff[ifl] = 0;	/* interface */
+			if (sscanf(buff + ifl + 1, "%lx%lx%X%d%d%d%lx%d%d%d",
+					   &d, &g, &flgs, &ref, &use, &metric, &m, &mtu, &win,
+					   &ir) != 10) {
+				bb_error_msg_and_die("Unsuported kernel route format\n");
+			}
+			ifl = 0;	/* parse flags */
+			if (flgs & RTF_UP) {
+				if (flgs & RTF_REJECT)
+					flags[ifl++] = '!';
+				else
+					flags[ifl++] = 'U';
+				if (flgs & RTF_GATEWAY)
+					flags[ifl++] = 'G';
+				if (flgs & RTF_HOST)
+					flags[ifl++] = 'H';
+				if (flgs & RTF_REINSTATE)
+					flags[ifl++] = 'R';
+				if (flgs & RTF_DYNAMIC)
+					flags[ifl++] = 'D';
+				if (flgs & RTF_MODIFIED)
+					flags[ifl++] = 'M';
+				flags[ifl] = 0;
+				dest.s_addr = d;
+				gw.s_addr = g;
+				mask.s_addr = m;
+				memset(&s_addr, 0, sizeof(struct sockaddr_in));
+				s_addr.sin_family = AF_INET;
+				s_addr.sin_addr = dest;
+				numeric = noresolve | 0x8000;	/* default instead of * */
+				INET_rresolve(sdest, sizeof(sdest), &s_addr, numeric, m);
+				numeric = noresolve | 0x4000;	/* host instead of net */
+				s_addr.sin_addr = gw;
+				INET_rresolve(sgw, sizeof(sgw), &s_addr, numeric, m);
+
+				printf("%-16s%-16s%-16s%-6s", sdest, sgw, inet_ntoa(mask),
+					   flags);
+				if (netstatfmt)
+					printf("%5d %-5d %6d %s\n", mtu, win, ir, buff);
+				else
+					printf("%-6d %-2d %7d %s\n", metric, ref, use, buff);
+			}
+		}
+		nl++;
+	}
+}
+
+#ifdef CONFIG_FEATURE_IPV6
+static void INET6_displayroutes(int noresolve)
+{
+	char buff[256];
+	char iface[16], flags[16];
+	char addr6[128], naddr6[128];
+	struct sockaddr_in6 saddr6, snaddr6;
+	int iflags, metric, refcnt, use, prefix_len, slen;
+	int numeric;
+
+	char addr6p[8][5], saddr6p[8][5], naddr6p[8][5];
+
+	FILE *fp = bb_xfopen("/proc/net/ipv6_route", "r");
+
+	flags[0] = 'U';
+
+	if (noresolve)
+		noresolve = 0x0fff;
+	numeric = noresolve | 0x8000;	/* default instead of * */
+
+	printf("Kernel IPv6 routing table\n"
+		   "Destination                                 "
+		   "Next Hop                                "
+		   "Flags Metric Ref    Use Iface\n");
+
+	while (fgets(buff, sizeof(buff), fp) != NULL) {
+		int ifl;
+
+		if (sscanf(buff, "%4s%4s%4s%4s%4s%4s%4s%4s %02x "
+				   "%4s%4s%4s%4s%4s%4s%4s%4s %02x "
+				   "%4s%4s%4s%4s%4s%4s%4s%4s %08x %08x %08x %08x %s\n",
+				   addr6p[0], addr6p[1], addr6p[2], addr6p[3],
+				   addr6p[4], addr6p[5], addr6p[6], addr6p[7],
+				   &prefix_len,
+				   saddr6p[0], saddr6p[1], saddr6p[2], saddr6p[3],
+				   saddr6p[4], saddr6p[5], saddr6p[6], saddr6p[7],
+				   &slen,
+				   naddr6p[0], naddr6p[1], naddr6p[2], naddr6p[3],
+				   naddr6p[4], naddr6p[5], naddr6p[6], naddr6p[7],
+				   &metric, &use, &refcnt, &iflags, iface) != 31) {
+			bb_error_msg_and_die("Unsuported kernel route format\n");
+		}
+
+		ifl = 1;		/* parse flags */
+		if (!(iflags & RTF_UP))
+			continue;
+		if (iflags & RTF_GATEWAY)
+			flags[ifl++] = 'G';
+		if (iflags & RTF_HOST)
+			flags[ifl++] = 'H';
+		if (iflags & RTF_DEFAULT)
+			flags[ifl++] = 'D';
+		if (iflags & RTF_ADDRCONF)
+			flags[ifl++] = 'A';
+		if (iflags & RTF_CACHE)
+			flags[ifl++] = 'C';
+		flags[ifl] = 0;
+
+		/* Fetch and resolve the target address. */
+		snprintf(addr6, sizeof(addr6), "%s:%s:%s:%s:%s:%s:%s:%s",
+				 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
+				 addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
+		inet_pton(AF_INET6, addr6, (struct sockaddr *) &saddr6.sin6_addr);
+		saddr6.sin6_family = AF_INET6;
+
+		INET6_rresolve(addr6, sizeof(addr6), (struct sockaddr_in6 *) &saddr6,
+					   numeric);
+		snprintf(addr6, sizeof(addr6), "%s/%d", addr6, prefix_len);
+
+		/* Fetch and resolve the nexthop address. */
+		snprintf(naddr6, sizeof(naddr6), "%s:%s:%s:%s:%s:%s:%s:%s",
+				 naddr6p[0], naddr6p[1], naddr6p[2], naddr6p[3],
+				 naddr6p[4], naddr6p[5], naddr6p[6], naddr6p[7]);
+		inet_pton(AF_INET6, naddr6, (struct sockaddr *) &snaddr6.sin6_addr);
+		snaddr6.sin6_family = AF_INET6;
+
+		INET6_rresolve(naddr6, sizeof(naddr6),
+					   (struct sockaddr_in6 *) &snaddr6, numeric);
+
+		/* Print the info. */
+		printf("%-43s %-39s %-5s %-6d %-2d %7d %-8s\n",
+			   addr6, naddr6, flags, metric, refcnt, use, iface);
+	}
+}
+#endif
+
+int route_main(int argc, char **argv)
+{
+	int opt;
+	int what = 0;
+
+#ifdef CONFIG_FEATURE_IPV6
+	int af = AF_INET;
+#endif
+
+	if (!argv[1] || (argv[1][0] == '-')) {
+		/* check options */
+		int noresolve = 0;
+		int extended = 0;
+
+		while ((opt = getopt(argc, argv, "A:ne")) > 0) {
+			switch (opt) {
+			case 'n':
+				noresolve = 1;
+				break;
+			case 'e':
+				extended = 1;
+				break;
+			case 'A':
+#ifdef CONFIG_FEATURE_IPV6
+				if (strcmp(optarg, "inet6") == 0)
+					af = AF_INET6;
+				break;
+#endif
+			default:
+				bb_show_usage();
+			}
+		}
+
+#ifdef CONFIG_FEATURE_IPV6
+		if (af == AF_INET6)
+			INET6_displayroutes(*argv != NULL);
+		else
+#endif
+			displayroutes(noresolve, extended);
+		return EXIT_SUCCESS;
+	} else {
+		/* check verb */
+		if (strcmp(argv[1], "add") == 0)
+			what = RTACTION_ADD;
+		else if (strcmp(argv[1], "del") == 0
+				 || strcmp(argv[1], "delete") == 0)
+			what = RTACTION_DEL;
+		else if (strcmp(argv[1], "flush") == 0)
+			what = RTACTION_FLUSH;
+		else
+			bb_show_usage();
+	}
+
+#ifdef CONFIG_FEATURE_IPV6
+	if (af == AF_INET6)
+		return INET6_setroute(what, 0, argv + 2);
+#endif
+	return INET_setroute(what, 0, argv + 2);
+}