[unix-history] / usr / src / usr.bin / netstat / route.c

/*
 * Copyright (c) 1983, 1988 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)route.c	5.23 (Berkeley) %G%";
#endif /* not lint */

#include <sys/param.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/mbuf.h>

#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#define  KERNEL
#include <net/route.h>
#undef KERNEL
#include <netinet/in.h>

#include <netns/ns.h>

#include <sys/kinfo.h>

#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "netstat.h"

#define kget(p, d) \
	(kread((off_t)(p), (char *)&(d), sizeof (d)))

/*
 * Definitions for showing gateway flags.
 */
struct bits {
	short	b_mask;
	char	b_val;
} bits[] = {
	{ RTF_UP,	'U' },
	{ RTF_GATEWAY,	'G' },
	{ RTF_HOST,	'H' },
	{ RTF_DYNAMIC,	'D' },
	{ RTF_MODIFIED,	'M' },
	{ RTF_CLONING,	'C' },
	{ RTF_XRESOLVE,	'X' },
	{ RTF_LLINFO,	'L' },
	{ RTF_REJECT,	'R' },
	{ RTF_STATIC,	'S' },
	{ 0 }
};

static union {
	struct	sockaddr u_sa;
	u_short	u_data[128];
} pt_u;

int	do_rtent = 0;
struct	rtentry rtentry;
struct	radix_node rnode;
struct	radix_mask rmask;

int	NewTree = 0;

static struct sockaddr *kgetsa __P((struct sockaddr *));
static void p_tree __P((struct radix_node *));
static void p_rtnode __P(());
static void ntreestuff __P(());
static void np_rtentry __P((struct rt_msghdr *));
static void p_sockaddr __P((struct sockaddr *, int, int));
static void p_flags __P((int, char *));
static void p_rtentry __P((struct rtentry *));

/*
 * Print routing tables.
 */
void
routepr(rtree)
	off_t rtree;
{
	struct radix_node_head *rnh, head;
	int i;

	printf("Routing tables\n");

	if (Aflag == 0 && NewTree)
		ntreestuff();
	else {
		if (rtree == 0) {
			printf("rt_tables: symbol not in namelist\n");
			return;
		}

		kget(rtree, rt_tables);
		for (i = 0; i <= AF_MAX; i++) {
			if ((rnh = rt_tables[i]) == 0)
				continue;
			kget(rnh, head);
			if (i == AF_UNSPEC) {
				if (Aflag && af == 0) {
					printf("Netmasks:\n");
					p_tree(head.rnh_treetop);
				}
			} else if (af == AF_UNSPEC || af == i) {
				pr_family(i);
				do_rtent = 1;
				pr_rthdr();
				p_tree(head.rnh_treetop);
			}
		}
	}
}

/*
 * Print address family header before a section of the routing table.
 */
void
pr_family(af)
	int af;
{
	char *afname;

	switch (af) {
	case AF_INET:
		afname = "Internet";
		break;
	case AF_NS:
		afname = "XNS";
		break;
	case AF_ISO:
		afname = "ISO";
		break;
	case AF_CCITT:
		afname = "X.25";
		break;
	default:
		afname = NULL;
		break;
	}
	if (afname)
		printf("\n%s:\n", afname);
	else
		printf("\nProtocol Family %d:\n", af);
}

/* column widths; each followed by one space */
#define	WID_DST		16	/* width of destination column */
#define	WID_GW		18	/* width of gateway column */

/*
 * Print header for routing table columns.
 */
void
pr_rthdr()
{

	if (Aflag)
		printf("%-8.8s ","Address");
	printf("%-*.*s %-*.*s %-6.6s  %6.6s%8.8s  %s\n",
		WID_DST, WID_DST, "Destination",
		WID_GW, WID_GW, "Gateway",
		"Flags", "Refs", "Use", "Interface");
}

static struct sockaddr *
kgetsa(dst)
	register struct sockaddr *dst;
{

	kget(dst, pt_u.u_sa);
	if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
		kread((off_t)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len);
	return (&pt_u.u_sa);
}

static void
p_tree(rn)
	struct radix_node *rn;
{

again:
	kget(rn, rnode);
	if (rnode.rn_b < 0) {
		if (Aflag)
			printf("%-8.8x ", rn);
		if (rnode.rn_flags & RNF_ROOT) {
			if (Aflag)
				printf("(root node)%s",
				    rnode.rn_dupedkey ? " =>\n" : "\n");
		} else if (do_rtent) {
			kget(rn, rtentry);
			p_rtentry(&rtentry);
			if (Aflag)
				p_rtnode();
		} else {
			p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key),
			    0, 44);
			putchar('\n');
		}
		if (rn = rnode.rn_dupedkey)
			goto again;
	} else {
		if (Aflag && do_rtent) {
			printf("%-8.8x ", rn);
			p_rtnode();
		}
		rn = rnode.rn_r;
		p_tree(rnode.rn_l);
		p_tree(rn);
	}
}

char	nbuf[20];

static void
p_rtnode()
{
	struct radix_mask *rm = rnode.rn_mklist;

	if (rnode.rn_b < 0) {
		if (rnode.rn_mask) {
			printf("\t  mask ");
			p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask),
				    0, -1);
		} else if (rm == 0)
			return;
	} else {
		sprintf(nbuf, "(%d)", rnode.rn_b);
		printf("%6.6s %8.8x : %8.8x", nbuf, rnode.rn_l, rnode.rn_r);
	}
	while (rm) {
		kget(rm, rmask);
		sprintf(nbuf, " %d refs, ", rmask.rm_refs);
		printf(" mk = %8.8x {(%d),%s",
			rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " ");
		p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 0, -1);
		putchar('}');
		if (rm = rmask.rm_mklist)
			printf(" ->");
	}
	putchar('\n');
}

static void
ntreestuff()
{
	int needed;
	char *buf, *next, *lim;
	register struct rt_msghdr *rtm;

	if ((needed = getkerninfo(KINFO_RT_DUMP, 0, 0, 0)) < 0)
		{ perror("route-getkerninfo-estimate"); exit(1);}
	if ((buf = malloc(needed)) == 0)
		{ printf("out of space\n"); exit(1);}
	if (getkerninfo(KINFO_RT_DUMP, buf, &needed, 0) < 0)
		{ perror("getkerninfo of routing table"); exit(1);}
	lim  = buf + needed;
	for (next = buf; next < lim; next += rtm->rtm_msglen) {
		rtm = (struct rt_msghdr *)next;
		np_rtentry(rtm);
	}
}

static void
np_rtentry(rtm)
	register struct rt_msghdr *rtm;
{
	register struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
#ifdef notdef
	static int masks_done, banner_printed;
#endif
	static int old_af;
	int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST;

#ifdef notdef
	/* for the moment, netmasks are skipped over */
	if (!banner_printed) {
		printf("Netmasks:\n");
		banner_printed = 1;
	}
	if (masks_done == 0) {
		if (rtm->rtm_addrs != RTA_DST ) {
			masks_done = 1;
			af = sa->sa_family;
		}
	} else
#endif
		af = sa->sa_family;
	if (af != old_af) {
		pr_family(af);
		old_af = af;
	}
	if (rtm->rtm_addrs == RTA_DST)
		p_sockaddr(sa, 0, 36);
	else {
		p_sockaddr(sa, rtm->rtm_flags, 16);
		if (sa->sa_len == 0)
			sa->sa_len = sizeof(long);
		sa = (struct sockaddr *)(sa->sa_len + (char *)sa);
		p_sockaddr(sa, 0, 18);
	}
	p_flags(rtm->rtm_flags & interesting, "%-6.6s ");
	putchar('\n');
}

static void
p_sockaddr(sa, flags, width)
	struct sockaddr *sa;
	int flags, width;
{
	char workbuf[128], *cplim;
	register char *cp = workbuf;

	switch(sa->sa_family) {
	case AF_INET:
	    {
		register struct sockaddr_in *sin = (struct sockaddr_in *)sa;

		cp = (sin->sin_addr.s_addr == 0) ? "default" :
		      ((flags & RTF_HOST) ?
			routename(sin->sin_addr.s_addr) :
			netname(sin->sin_addr.s_addr, 0L));
		break;
	    }

	case AF_NS:
		cp = ns_print(sa);
		break;

	case AF_LINK:
	    {
		register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;

		if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
		    sdl->sdl_slen == 0)
			(void) sprintf(workbuf, "link#%d", sdl->sdl_index);
		else switch (sdl->sdl_type) {
		case IFT_ETHER:
		    {
			register int i;
			register u_char *lla = (u_char *)sdl->sdl_data +
			    sdl->sdl_nlen;

			cplim = "";
			for (i = 0; i < sdl->sdl_alen; i++, lla++) {
				cp += sprintf(cp, "%s%x", cplim, *lla);
				cplim = ":";
			}
			cp = workbuf;
			break;
		    }
		default:
			cp = link_ntoa(sdl);
			break;
		}
		break;
	    }

	default:
	    {
		register u_short *s = ((u_short *)sa->sa_data), *slim;

		slim = (u_short *) sa + ((sa->sa_len + sizeof(u_short) - 1) /
		    sizeof(u_short));
		cplim = cp + sizeof(workbuf) - 6;
		cp += sprintf(cp, "(%d)", sa->sa_family);
		while (s < slim && cp < cplim)
			cp += sprintf(cp, " %x", *s++);
		cp = workbuf;
	    }
	}
	if (width < 0 )
		printf("%s ", cp);
	else {
		if (nflag)
			printf("%-*s ", width, cp);
		else
			printf("%-*.*s ", width, width, cp);
	}
}

static void
p_flags(f, format)
	register int f;
	char *format;
{
	char name[33], *flags;
	register struct bits *p = bits;

	for (flags = name; p->b_mask; p++)
		if (p->b_mask & f)
			*flags++ = p->b_val;
	*flags = '\0';
	printf(format, name);
}

static void
p_rtentry(rt)
	register struct rtentry *rt;
{
	static struct ifnet ifnet, *lastif;
	static char name[16];

	p_sockaddr(kgetsa(rt_key(rt)), rt->rt_flags, WID_DST);
	p_sockaddr(kgetsa(rt->rt_gateway), 0, WID_GW);
	p_flags(rt->rt_flags, "%-6.6s ");
	printf("%6d %8d ", rt->rt_refcnt, rt->rt_use);
	if (rt->rt_ifp) {
		if (rt->rt_ifp != lastif) {
			kget(rt->rt_ifp, ifnet);
			kread((off_t)ifnet.if_name, name, 16);
			lastif = rt->rt_ifp;
		}
		printf(" %.15s%d%s", name, ifnet.if_unit,
			rt->rt_nodes[0].rn_dupedkey ? " =>" : "");
	}
	putchar('\n');
}

char *
routename(in)
	u_long in;
{
	register char *cp;
	static char line[MAXHOSTNAMELEN + 1];
	struct hostent *hp;
	static char domain[MAXHOSTNAMELEN + 1];
	static int first = 1;

	if (first) {
		first = 0;
		if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
		    (cp = index(domain, '.')))
			(void) strcpy(domain, cp + 1);
		else
			domain[0] = 0;
	}
	cp = 0;
	if (!nflag) {
		hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
			AF_INET);
		if (hp) {
			if ((cp = index(hp->h_name, '.')) &&
			    !strcmp(cp + 1, domain))
				*cp = 0;
			cp = hp->h_name;
		}
	}
	if (cp)
		strncpy(line, cp, sizeof(line) - 1);
	else {
#define C(x)	((x) & 0xff)
		in = ntohl(in);
		sprintf(line, "%u.%u.%u.%u",
		    C(in >> 24), C(in >> 16), C(in >> 8), C(in));
	}
	return (line);
}

/*
 * Return the name of the network whose address is given.
 * The address is assumed to be that of a net or subnet, not a host.
 */
char *
netname(in, mask)
	u_long in, mask;
{
	char *cp = 0;
	static char line[MAXHOSTNAMELEN + 1];
	struct netent *np = 0;
	u_long net;
	register int i;
	int subnetshift;

	i = ntohl(in);
	if (!nflag && i) {
		if (mask == 0) {
			if (IN_CLASSA(i)) {
				mask = IN_CLASSA_NET;
				subnetshift = 8;
			} else if (IN_CLASSB(i)) {
				mask = IN_CLASSB_NET;
				subnetshift = 8;
			} else {
				mask = IN_CLASSC_NET;
				subnetshift = 4;
			}
			/*
			 * If there are more bits than the standard mask
			 * would suggest, subnets must be in use.
			 * Guess at the subnet mask, assuming reasonable
			 * width subnet fields.
			 */
			while (i &~ mask)
				mask = (long)mask >> subnetshift;
		}
		net = i & mask;
		while ((mask & 1) == 0)
			mask >>= 1, net >>= 1;
		np = getnetbyaddr(net, AF_INET);
		if (np)
			cp = np->n_name;
	}
	if (cp)
		strncpy(line, cp, sizeof(line) - 1);
	else if ((i & 0xffffff) == 0)
		sprintf(line, "%u", C(i >> 24));
	else if ((i & 0xffff) == 0)
		sprintf(line, "%u.%u", C(i >> 24) , C(i >> 16));
	else if ((i & 0xff) == 0)
		sprintf(line, "%u.%u.%u", C(i >> 24), C(i >> 16), C(i >> 8));
	else
		sprintf(line, "%u.%u.%u.%u", C(i >> 24),
			C(i >> 16), C(i >> 8), C(i));
	return (line);
}

/*
 * Print routing statistics
 */
void
rt_stats(off)
	off_t off;
{
	struct rtstat rtstat;

	if (off == 0) {
		printf("rtstat: symbol not in namelist\n");
		return;
	}
	kread(off, (char *)&rtstat, sizeof (rtstat));
	printf("routing:\n");
	printf("\t%u bad routing redirect%s\n",
		rtstat.rts_badredirect, plural(rtstat.rts_badredirect));
	printf("\t%u dynamically created route%s\n",
		rtstat.rts_dynamic, plural(rtstat.rts_dynamic));
	printf("\t%u new gateway%s due to redirects\n",
		rtstat.rts_newgateway, plural(rtstat.rts_newgateway));
	printf("\t%u destination%s found unreachable\n",
		rtstat.rts_unreach, plural(rtstat.rts_unreach));
	printf("\t%u use%s of a wildcard route\n",
		rtstat.rts_wildcard, plural(rtstat.rts_wildcard));
}
short ns_nullh[] = {0,0,0};
short ns_bh[] = {-1,-1,-1};

char *
ns_print(sa)
	register struct sockaddr *sa;
{
	register struct sockaddr_ns *sns = (struct sockaddr_ns*)sa;
	struct ns_addr work;
	union { union ns_net net_e; u_long long_e; } net;
	u_short port;
	static char mybuf[50], cport[10], chost[25];
	char *host = "";
	register char *p; register u_char *q;

	work = sns->sns_addr;
	port = ntohs(work.x_port);
	work.x_port = 0;
	net.net_e  = work.x_net;
	if (ns_nullhost(work) && net.long_e == 0) {
		if (port ) {
			sprintf(mybuf, "*.%xH", port);
			upHex(mybuf);
		} else
			sprintf(mybuf, "*.*");
		return (mybuf);
	}

	if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
		host = "any";
	} else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
		host = "*";
	} else {
		q = work.x_host.c_host;
		sprintf(chost, "%02x%02x%02x%02x%02x%02xH",
			q[0], q[1], q[2], q[3], q[4], q[5]);
		for (p = chost; *p == '0' && p < chost + 12; p++)
			continue;
		host = p;
	}
	if (port)
		sprintf(cport, ".%xH", htons(port));
	else
		*cport = 0;

	sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport);
	upHex(mybuf);
	return(mybuf);
}

char *
ns_phost(sa)
	struct sockaddr *sa;
{
	register struct sockaddr_ns *sns = (struct sockaddr_ns *)sa;
	struct sockaddr_ns work;
	static union ns_net ns_zeronet;
	char *p;

	work = *sns;
	work.sns_addr.x_port = 0;
	work.sns_addr.x_net = ns_zeronet;

	p = ns_print((struct sockaddr *)&work);
	if (strncmp("0H.", p, 3) == 0) p += 3;
	return(p);
}

void
upHex(p0)
	char *p0;
{
	register char *p = p0;
	for (; *p; p++) switch (*p) {

	case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
		*p += ('A' - 'a');
	}
}
Commit	Line	Data
5ff67f98	1	/*
b36fc510	2	* Copyright (c) 1983, 1988 Regents of the University of California.
ee3f90a5 MK	3	* All rights reserved.
ee3f90a5 MK	4	*
42841feb	5	* %sccs.include.redist.c%
5ff67f98 DF	6	*/
5ff67f98 DF	7
3537c4ea	8	#ifndef lint
6e549c8f	9	static char sccsid[] = "@(#)route.c 5.23 (Berkeley) %G%";
b36fc510	10	#endif /* not lint */
3537c4ea	11
6c5bed6c	12	#include <sys/param.h>
6e549c8f	13	#include <sys/protosw.h>
3537c4ea SL	14	#include <sys/socket.h>
3537c4ea SL	15	#include <sys/mbuf.h>
44906619	16
3537c4ea	17	#include <net/if.h>
a6dd7faa MK	18	#include <net/if_dl.h>
a6dd7faa MK	19	#include <net/if_types.h>
4b68c469	20	#define KERNEL
3537c4ea	21	#include <net/route.h>
4b68c469	22	#undef KERNEL
44906619 SL	23	#include <netinet/in.h>
44906619 SL	24
f1fbb01b KS	25	#include <netns/ns.h>
f1fbb01b KS	26
4d9e18da	27	#include <sys/kinfo.h>
3537c4ea	28
6e549c8f	29	#include <netdb.h>
42841feb	30	#include <stdio.h>
6e549c8f	31	#include <stdlib.h>
42841feb	32	#include <string.h>
6e549c8f	33	#include "netstat.h"
42841feb	34
4b68c469	35	#define kget(p, d) \
6e549c8f	36	(kread((off_t)(p), (char *)&(d), sizeof (d)))
3537c4ea SL	37
	38	/*
	39	* Definitions for showing gateway flags.
	40	*/
	41	struct bits {
	42	short b_mask;
	43	char b_val;
	44	} bits[] = {
	45	{ RTF_UP, 'U' },
	46	{ RTF_GATEWAY, 'G' },
	47	{ RTF_HOST, 'H' },
6c5bed6c	48	{ RTF_DYNAMIC, 'D' },
3273bd86	49	{ RTF_MODIFIED, 'M' },
56492e5a	50	{ RTF_CLONING, 'C' },
b8442d18	51	{ RTF_XRESOLVE, 'X' },
56492e5a	52	{ RTF_LLINFO, 'L' },
b8442d18	53	{ RTF_REJECT, 'R' },
4e64fa9b	54	{ RTF_STATIC, 'S' },
3537c4ea SL	55	{ 0 }
	56	};
	57
a6dd7faa MK	58	static union {
	59	struct sockaddr u_sa;
	60	u_short u_data[128];
	61	} pt_u;
	62
	63	int do_rtent = 0;
	64	struct rtentry rtentry;
	65	struct radix_node rnode;
	66	struct radix_mask rmask;
	67
	68	int NewTree = 0;
	69
6e549c8f KS	70	static struct sockaddr kgetsa __P((struct sockaddr ));
	71	static void p_tree __P((struct radix_node *));
	72	static void p_rtnode __P(());
	73	static void ntreestuff __P(());
	74	static void np_rtentry __P((struct rt_msghdr *));
	75	static void p_sockaddr __P((struct sockaddr *, int, int));
	76	static void p_flags __P((int, char *));
	77	static void p_rtentry __P((struct rtentry *));
	78
3537c4ea SL	79	/*
	80	* Print routing tables.
	81	*/
6e549c8f	82	void
a6dd7faa MK	83	routepr(rtree)
a6dd7faa MK	84	off_t rtree;
3537c4ea	85	{
a6dd7faa	86	struct radix_node_head *rnh, head;
4e64fa9b	87	int i;
3537c4ea	88
4b68c469	89	printf("Routing tables\n");
a6dd7faa MK	90
	91	if (Aflag == 0 && NewTree)
	92	ntreestuff();
	93	else {
	94	if (rtree == 0) {
4e64fa9b	95	printf("rt_tables: symbol not in namelist\n");
a6dd7faa MK	96	return;
	97	}
	98
4e64fa9b KS	99	kget(rtree, rt_tables);
	100	for (i = 0; i <= AF_MAX; i++) {
	101	if ((rnh = rt_tables[i]) == 0)
	102	continue;
a6dd7faa	103	kget(rnh, head);
4e64fa9b	104	if (i == AF_UNSPEC) {
6e549c8f	105	if (Aflag && af == 0) {
a6dd7faa MK	106	printf("Netmasks:\n");
	107	p_tree(head.rnh_treetop);
	108	}
4e64fa9b KS	109	} else if (af == AF_UNSPEC \|\| af == i) {
4e64fa9b KS	110	pr_family(i);
a6dd7faa MK	111	do_rtent = 1;
	112	pr_rthdr();
	113	p_tree(head.rnh_treetop);
	114	}
3537c4ea SL	115	}
3537c4ea SL	116	}
4b68c469 MK	117	}
4b68c469 MK	118
a6dd7faa MK	119	/*
	120	* Print address family header before a section of the routing table.
	121	*/
6e549c8f	122	void
a6dd7faa MK	123	pr_family(af)
a6dd7faa MK	124	int af;
4b68c469	125	{
a6dd7faa	126	char *afname;
56492e5a	127
a6dd7faa MK	128	switch (af) {
	129	case AF_INET:
	130	afname = "Internet";
	131	break;
	132	case AF_NS:
	133	afname = "XNS";
	134	break;
	135	case AF_ISO:
	136	afname = "ISO";
	137	break;
4e64fa9b KS	138	case AF_CCITT:
	139	afname = "X.25";
	140	break;
a6dd7faa MK	141	default:
	142	afname = NULL;
	143	break;
4b68c469	144	}
a6dd7faa MK	145	if (afname)
	146	printf("\n%s:\n", afname);
	147	else
	148	printf("\nProtocol Family %d:\n", af);
	149	}
	150
	151	/* column widths; each followed by one space */
	152	#define WID_DST 16 /* width of destination column */
	153	#define WID_GW 18 /* width of gateway column */
	154
	155	/*
	156	* Print header for routing table columns.
	157	*/
6e549c8f	158	void
a6dd7faa MK	159	pr_rthdr()
	160	{
	161
	162	if (Aflag)
	163	printf("%-8.8s ","Address");
	164	printf("%-.s %-.s %-6.6s %6.6s%8.8s %s\n",
	165	WID_DST, WID_DST, "Destination",
	166	WID_GW, WID_GW, "Gateway",
	167	"Flags", "Refs", "Use", "Interface");
4b68c469 MK	168	}
4b68c469 MK	169
6e549c8f	170	static struct sockaddr *
4d9e18da	171	kgetsa(dst)
a6dd7faa	172	register struct sockaddr *dst;
4d9e18da	173	{
a6dd7faa	174
4d9e18da	175	kget(dst, pt_u.u_sa);
a6dd7faa	176	if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
6e549c8f	177	kread((off_t)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len);
4d9e18da KS	178	return (&pt_u.u_sa);
	179	}
	180
6e549c8f	181	static void
b8442d18	182	p_tree(rn)
a6dd7faa	183	struct radix_node *rn;
4b68c469	184	{
4b68c469 MK	185
	186	again:
	187	kget(rn, rnode);
	188	if (rnode.rn_b < 0) {
b8442d18 KS	189	if (Aflag)
b8442d18 KS	190	printf("%-8.8x ", rn);
a6dd7faa MK	191	if (rnode.rn_flags & RNF_ROOT) {
	192	if (Aflag)
	193	printf("(root node)%s",
b8442d18	194	rnode.rn_dupedkey ? " =>\n" : "\n");
a6dd7faa	195	} else if (do_rtent) {
4b68c469 MK	196	kget(rn, rtentry);
4b68c469 MK	197	p_rtentry(&rtentry);
b8442d18 KS	198	if (Aflag)
b8442d18 KS	199	p_rtnode();
4b68c469	200	} else {
4d9e18da	201	p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key),
a6dd7faa	202	0, 44);
4b68c469 MK	203	putchar('\n');
	204	}
	205	if (rn = rnode.rn_dupedkey)
	206	goto again;
	207	} else {
b8442d18 KS	208	if (Aflag && do_rtent) {
	209	printf("%-8.8x ", rn);
	210	p_rtnode();
	211	}
	212	rn = rnode.rn_r;
	213	p_tree(rnode.rn_l);
	214	p_tree(rn);
	215	}
	216	}
a6dd7faa MK	217
a6dd7faa MK	218	char nbuf[20];
b8442d18	219
6e549c8f	220	static void
b8442d18 KS	221	p_rtnode()
b8442d18 KS	222	{
b8442d18	223	struct radix_mask *rm = rnode.rn_mklist;
a6dd7faa	224
b8442d18 KS	225	if (rnode.rn_b < 0) {
	226	if (rnode.rn_mask) {
	227	printf("\t mask ");
	228	p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask),
	229	0, -1);
	230	} else if (rm == 0)
	231	return;
	232	} else {
	233	sprintf(nbuf, "(%d)", rnode.rn_b);
	234	printf("%6.6s %8.8x : %8.8x", nbuf, rnode.rn_l, rnode.rn_r);
4b68c469	235	}
b8442d18 KS	236	while (rm) {
	237	kget(rm, rmask);
	238	sprintf(nbuf, " %d refs, ", rmask.rm_refs);
	239	printf(" mk = %8.8x {(%d),%s",
	240	rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " ");
	241	p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 0, -1);
	242	putchar('}');
	243	if (rm = rmask.rm_mklist)
	244	printf(" ->");
	245	}
	246	putchar('\n');
4b68c469 MK	247	}
4b68c469 MK	248
6e549c8f	249	static void
4d9e18da	250	ntreestuff()
4b68c469	251	{
4d9e18da KS	252	int needed;
	253	char buf, next, *lim;
	254	register struct rt_msghdr *rtm;
	255
	256	if ((needed = getkerninfo(KINFO_RT_DUMP, 0, 0, 0)) < 0)
	257	{ perror("route-getkerninfo-estimate"); exit(1);}
	258	if ((buf = malloc(needed)) == 0)
56492e5a	259	{ printf("out of space\n"); exit(1);}
4d9e18da	260	if (getkerninfo(KINFO_RT_DUMP, buf, &needed, 0) < 0)
a6dd7faa	261	{ perror("getkerninfo of routing table"); exit(1);}
4d9e18da KS	262	lim = buf + needed;
	263	for (next = buf; next < lim; next += rtm->rtm_msglen) {
	264	rtm = (struct rt_msghdr *)next;
	265	np_rtentry(rtm);
4b68c469	266	}
4b68c469 MK	267	}
4b68c469 MK	268
6e549c8f	269	static void
4d9e18da	270	np_rtentry(rtm)
a6dd7faa	271	register struct rt_msghdr *rtm;
4b68c469	272	{
4d9e18da	273	register struct sockaddr sa = (struct sockaddr )(rtm + 1);
6e549c8f KS	274	#ifdef notdef
	275	static int masks_done, banner_printed;
	276	#endif
	277	static int old_af;
4d9e18da	278	int af = 0, interesting = RTF_UP \| RTF_GATEWAY \| RTF_HOST;
4b68c469	279
4d9e18da KS	280	#ifdef notdef
	281	/* for the moment, netmasks are skipped over */
	282	if (!banner_printed) {
	283	printf("Netmasks:\n");
	284	banner_printed = 1;
	285	}
	286	if (masks_done == 0) {
	287	if (rtm->rtm_addrs != RTA_DST ) {
	288	masks_done = 1;
	289	af = sa->sa_family;
	290	}
	291	} else
	292	#endif
	293	af = sa->sa_family;
	294	if (af != old_af) {
a6dd7faa	295	pr_family(af);
4d9e18da KS	296	old_af = af;
	297	}
	298	if (rtm->rtm_addrs == RTA_DST)
56492e5a	299	p_sockaddr(sa, 0, 36);
4d9e18da	300	else {
56492e5a	301	p_sockaddr(sa, rtm->rtm_flags, 16);
4d9e18da KS	302	if (sa->sa_len == 0)
	303	sa->sa_len = sizeof(long);
	304	sa = (struct sockaddr )(sa->sa_len + (char )sa);
56492e5a	305	p_sockaddr(sa, 0, 18);
4d9e18da KS	306	}
	307	p_flags(rtm->rtm_flags & interesting, "%-6.6s ");
	308	putchar('\n');
	309	}
	310
6e549c8f	311	static void
56492e5a	312	p_sockaddr(sa, flags, width)
a6dd7faa MK	313	struct sockaddr *sa;
a6dd7faa MK	314	int flags, width;
4d9e18da	315	{
6e549c8f	316	char workbuf[128], *cplim;
a6dd7faa	317	register char *cp = workbuf;
4d9e18da KS	318
4d9e18da KS	319	switch(sa->sa_family) {
4b68c469	320	case AF_INET:
4d9e18da KS	321	{
	322	register struct sockaddr_in sin = (struct sockaddr_in )sa;
	323
	324	cp = (sin->sin_addr.s_addr == 0) ? "default" :
	325	((flags & RTF_HOST) ?
6e549c8f KS	326	routename(sin->sin_addr.s_addr) :
6e549c8f KS	327	netname(sin->sin_addr.s_addr, 0L));
4b68c469	328	break;
a6dd7faa	329	}
4d9e18da	330
4b68c469	331	case AF_NS:
6e549c8f	332	cp = ns_print(sa);
4b68c469	333	break;
4d9e18da	334
a6dd7faa MK	335	case AF_LINK:
	336	{
	337	register struct sockaddr_dl sdl = (struct sockaddr_dl )sa;
a6dd7faa MK	338
	339	if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
	340	sdl->sdl_slen == 0)
	341	(void) sprintf(workbuf, "link#%d", sdl->sdl_index);
	342	else switch (sdl->sdl_type) {
	343	case IFT_ETHER:
	344	{
	345	register int i;
	346	register u_char lla = (u_char )sdl->sdl_data +
	347	sdl->sdl_nlen;
	348
	349	cplim = "";
	350	for (i = 0; i < sdl->sdl_alen; i++, lla++) {
	351	cp += sprintf(cp, "%s%x", cplim, *lla);
	352	cplim = ":";
	353	}
	354	cp = workbuf;
	355	break;
	356	}
	357	default:
	358	cp = link_ntoa(sdl);
	359	break;
	360	}
	361	break;
	362	}
	363
4b68c469	364	default:
4d9e18da	365	{
b8442d18	366	register u_short s = ((u_short )sa->sa_data), *slim;
4d9e18da	367
b8442d18 KS	368	slim = (u_short *) sa + ((sa->sa_len + sizeof(u_short) - 1) /
b8442d18 KS	369	sizeof(u_short));
4d9e18da KS	370	cplim = cp + sizeof(workbuf) - 6;
	371	cp += sprintf(cp, "(%d)", sa->sa_family);
	372	while (s < slim && cp < cplim)
b8442d18	373	cp += sprintf(cp, " %x", *s++);
4d9e18da KS	374	cp = workbuf;
4d9e18da KS	375	}
4b68c469	376	}
b8442d18 KS	377	if (width < 0 )
	378	printf("%s ", cp);
	379	else {
	380	if (nflag)
	381	printf("%-*s ", width, cp);
	382	else
	383	printf("%-.s ", width, width, cp);
	384	}
4d9e18da KS	385	}
4d9e18da KS	386
6e549c8f	387	static void
4d9e18da	388	p_flags(f, format)
a6dd7faa MK	389	register int f;
a6dd7faa MK	390	char *format;
4d9e18da KS	391	{
	392	char name[33], *flags;
	393	register struct bits *p = bits;
a6dd7faa	394
4d9e18da KS	395	for (flags = name; p->b_mask; p++)
4d9e18da KS	396	if (p->b_mask & f)
4b68c469 MK	397	*flags++ = p->b_val;
4b68c469 MK	398	*flags = '\0';
4d9e18da KS	399	printf(format, name);
	400	}
	401
6e549c8f	402	static void
4d9e18da	403	p_rtentry(rt)
6e549c8f	404	register struct rtentry *rt;
4d9e18da	405	{
a6dd7faa MK	406	static struct ifnet ifnet, *lastif;
a6dd7faa MK	407	static char name[16];
4d9e18da	408
a6dd7faa MK	409	p_sockaddr(kgetsa(rt_key(rt)), rt->rt_flags, WID_DST);
a6dd7faa MK	410	p_sockaddr(kgetsa(rt->rt_gateway), 0, WID_GW);
4d9e18da KS	411	p_flags(rt->rt_flags, "%-6.6s ");
4d9e18da KS	412	printf("%6d %8d ", rt->rt_refcnt, rt->rt_use);
a6dd7faa MK	413	if (rt->rt_ifp) {
	414	if (rt->rt_ifp != lastif) {
	415	kget(rt->rt_ifp, ifnet);
6e549c8f	416	kread((off_t)ifnet.if_name, name, 16);
a6dd7faa MK	417	lastif = rt->rt_ifp;
	418	}
	419	printf(" %.15s%d%s", name, ifnet.if_unit,
	420	rt->rt_nodes[0].rn_dupedkey ? " =>" : "");
4b68c469	421	}
a6dd7faa	422	putchar('\n');
3537c4ea SL	423	}
	424
	425	char *
	426	routename(in)
6e549c8f	427	u_long in;
3537c4ea	428	{
6b9930b0	429	register char *cp;
cb646d4b	430	static char line[MAXHOSTNAMELEN + 1];
40f48772	431	struct hostent *hp;
6c5bed6c MK	432	static char domain[MAXHOSTNAMELEN + 1];
6c5bed6c MK	433	static int first = 1;
3537c4ea	434
6c5bed6c MK	435	if (first) {
	436	first = 0;
	437	if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
	438	(cp = index(domain, '.')))
	439	(void) strcpy(domain, cp + 1);
	440	else
	441	domain[0] = 0;
	442	}
6b9930b0	443	cp = 0;
3537c4ea	444	if (!nflag) {
f7c99b06	445	hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
cab3a575	446	AF_INET);
6c5bed6c MK	447	if (hp) {
	448	if ((cp = index(hp->h_name, '.')) &&
	449	!strcmp(cp + 1, domain))
	450	*cp = 0;
cab3a575	451	cp = hp->h_name;
6c5bed6c	452	}
3537c4ea SL	453	}
3537c4ea SL	454	if (cp)
cb646d4b	455	strncpy(line, cp, sizeof(line) - 1);
3537c4ea	456	else {
cab3a575	457	#define C(x) ((x) & 0xff)
6e549c8f KS	458	in = ntohl(in);
	459	sprintf(line, "%u.%u.%u.%u",
	460	C(in >> 24), C(in >> 16), C(in >> 8), C(in));
cab3a575 MK	461	}
	462	return (line);
	463	}
	464
	465	/*
	466	* Return the name of the network whose address is given.
	467	* The address is assumed to be that of a net or subnet, not a host.
	468	*/
	469	char *
	470	netname(in, mask)
6e549c8f	471	u_long in, mask;
cab3a575 MK	472	{
cab3a575 MK	473	char *cp = 0;
cb646d4b	474	static char line[MAXHOSTNAMELEN + 1];
cab3a575 MK	475	struct netent *np = 0;
cab3a575 MK	476	u_long net;
6e549c8f	477	register int i;
6c5bed6c	478	int subnetshift;
cab3a575	479
6e549c8f	480	i = ntohl(in);
a83ade01	481	if (!nflag && i) {
6c5bed6c MK	482	if (mask == 0) {
	483	if (IN_CLASSA(i)) {
	484	mask = IN_CLASSA_NET;
	485	subnetshift = 8;
	486	} else if (IN_CLASSB(i)) {
	487	mask = IN_CLASSB_NET;
	488	subnetshift = 8;
	489	} else {
	490	mask = IN_CLASSC_NET;
	491	subnetshift = 4;
	492	}
cab3a575	493	/*
6c5bed6c MK	494	* If there are more bits than the standard mask
	495	* would suggest, subnets must be in use.
	496	* Guess at the subnet mask, assuming reasonable
	497	* width subnet fields.
cab3a575	498	*/
a83ade01	499	while (i &~ mask)
6c5bed6c	500	mask = (long)mask >> subnetshift;
cab3a575	501	}
a83ade01	502	net = i & mask;
6c5bed6c MK	503	while ((mask & 1) == 0)
	504	mask >>= 1, net >>= 1;
	505	np = getnetbyaddr(net, AF_INET);
cab3a575 MK	506	if (np)
cab3a575 MK	507	cp = np->n_name;
6e549c8f	508	}
cab3a575	509	if (cp)
cb646d4b	510	strncpy(line, cp, sizeof(line) - 1);
a83ade01 MK	511	else if ((i & 0xffffff) == 0)
	512	sprintf(line, "%u", C(i >> 24));
	513	else if ((i & 0xffff) == 0)
	514	sprintf(line, "%u.%u", C(i >> 24) , C(i >> 16));
	515	else if ((i & 0xff) == 0)
	516	sprintf(line, "%u.%u.%u", C(i >> 24), C(i >> 16), C(i >> 8));
cab3a575	517	else
a83ade01 MK	518	sprintf(line, "%u.%u.%u.%u", C(i >> 24),
a83ade01 MK	519	C(i >> 16), C(i >> 8), C(i));
3537c4ea SL	520	return (line);
3537c4ea SL	521	}
6c5bed6c	522
bbd2d21e SL	523	/*
	524	* Print routing statistics
	525	*/
6e549c8f	526	void
bbd2d21e SL	527	rt_stats(off)
	528	off_t off;
	529	{
	530	struct rtstat rtstat;
	531
	532	if (off == 0) {
	533	printf("rtstat: symbol not in namelist\n");
	534	return;
	535	}
6e549c8f	536	kread(off, (char *)&rtstat, sizeof (rtstat));
bbd2d21e	537	printf("routing:\n");
bd91d3f9	538	printf("\t%u bad routing redirect%s\n",
bbd2d21e	539	rtstat.rts_badredirect, plural(rtstat.rts_badredirect));
bd91d3f9	540	printf("\t%u dynamically created route%s\n",
bbd2d21e	541	rtstat.rts_dynamic, plural(rtstat.rts_dynamic));
bd91d3f9	542	printf("\t%u new gateway%s due to redirects\n",
bbd2d21e	543	rtstat.rts_newgateway, plural(rtstat.rts_newgateway));
bd91d3f9	544	printf("\t%u destination%s found unreachable\n",
bbd2d21e	545	rtstat.rts_unreach, plural(rtstat.rts_unreach));
bd91d3f9	546	printf("\t%u use%s of a wildcard route\n",
bbd2d21e SL	547	rtstat.rts_wildcard, plural(rtstat.rts_wildcard));
bbd2d21e SL	548	}
2ff355d6	549	short ns_nullh[] = {0,0,0};
f1fbb01b KS	550	short ns_bh[] = {-1,-1,-1};
	551
	552	char *
6e549c8f KS	553	ns_print(sa)
6e549c8f KS	554	register struct sockaddr *sa;
f1fbb01b	555	{
6e549c8f	556	register struct sockaddr_ns sns = (struct sockaddr_ns)sa;
2ff355d6 MK	557	struct ns_addr work;
	558	union { union ns_net net_e; u_long long_e; } net;
	559	u_short port;
	560	static char mybuf[50], cport[10], chost[25];
	561	char *host = "";
f7c99b06	562	register char p; register u_char q;
f1fbb01b	563
2ff355d6 MK	564	work = sns->sns_addr;
	565	port = ntohs(work.x_port);
	566	work.x_port = 0;
	567	net.net_e = work.x_net;
	568	if (ns_nullhost(work) && net.long_e == 0) {
	569	if (port ) {
	570	sprintf(mybuf, "*.%xH", port);
	571	upHex(mybuf);
	572	} else
	573	sprintf(mybuf, ".");
	574	return (mybuf);
	575	}
f1fbb01b	576
56492e5a	577	if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
2ff355d6 MK	578	host = "any";
	579	} else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
	580	host = "*";
	581	} else {
	582	q = work.x_host.c_host;
	583	sprintf(chost, "%02x%02x%02x%02x%02x%02xH",
	584	q[0], q[1], q[2], q[3], q[4], q[5]);
6e549c8f KS	585	for (p = chost; *p == '0' && p < chost + 12; p++)
6e549c8f KS	586	continue;
2ff355d6	587	host = p;
f1fbb01b	588	}
2ff355d6 MK	589	if (port)
	590	sprintf(cport, ".%xH", htons(port));
	591	else
	592	*cport = 0;
	593
	594	sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport);
	595	upHex(mybuf);
f1fbb01b KS	596	return(mybuf);
f1fbb01b KS	597	}
2ff355d6	598
f1fbb01b	599	char *
6e549c8f KS	600	ns_phost(sa)
6e549c8f KS	601	struct sockaddr *sa;
f1fbb01b	602	{
6e549c8f	603	register struct sockaddr_ns sns = (struct sockaddr_ns )sa;
2ff355d6 MK	604	struct sockaddr_ns work;
	605	static union ns_net ns_zeronet;
	606	char *p;
6e549c8f	607
2ff355d6 MK	608	work = *sns;
	609	work.sns_addr.x_port = 0;
	610	work.sns_addr.x_net = ns_zeronet;
	611
6e549c8f	612	p = ns_print((struct sockaddr *)&work);
2ff355d6 MK	613	if (strncmp("0H.", p, 3) == 0) p += 3;
	614	return(p);
	615	}
6e549c8f KS	616
6e549c8f KS	617	void
2ff355d6	618	upHex(p0)
6e549c8f	619	char *p0;
2ff355d6 MK	620	{
	621	register char *p = p0;
	622	for (; p; p++) switch (p) {
	623
	624	case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
	625	*p += ('A' - 'a');
	626	}
f1fbb01b	627	}