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freebsd-dev/release/picobsd/tinyware/ns/ns.c
Andrzej Bialecki 3c0df64f68 Function declared void shouldn't return any value...
2002-03-27 20:10:53 +00:00

886 lines
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/*-
* Copyright (c) 1998 Andrzej Bialecki
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Small replacement for netstat. Uses only sysctl(3) to get the info.
*/
#include <sys/types.h>
#include <sys/time.h>
#include <sys/sysctl.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <net/if.h>
#include <net/route.h>
#include <net/if_dl.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/icmp_var.h>
#include <netinet/ip_var.h>
#include <netinet/tcp.h>
#include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#ifdef BRIDGING
#include <net/if_types.h> /* IFT_ETHER */
#include <net/ethernet.h>
#include <net/bridge.h>
#endif
#include <err.h>
#include <errno.h>
#include <osreldate.h>
#include <stdio.h>
#include <unistd.h>
char *progname;
int iflag = 0;
int lflag = 0; /* print cpu load info */
int rflag = 0;
int sflag = 0;
int pflag = 0;
int wflag = 0; /* repeat every wait seconds */
int delta = 0 ;
extern char *optarg;
extern int optind;
void
usage()
{
fprintf(stderr, "\n%s [-nrsil] [-p proto] [-w wait]\n", progname);
#ifdef BRIDGING
fprintf(stderr, " proto: {ip|tcp|udp|icmp|bdg}\n\n");
#else
fprintf(stderr, " proto: {ip|tcp|udp|icmp}\n\n");
#endif
}
/*
* The following parts related to retrieving the routing table and
* interface information, were borrowed from R. Stevens' code examples
* accompanying his excellent book. Thanks!
*/
char *
sock_ntop(const struct sockaddr *sa, size_t salen)
{
char portstr[7];
static char str[128]; /* Unix domain is largest */
switch (sa->sa_family) {
case 255: {
int i = 0;
u_long mask;
u_int index = 1 << 31;
u_short new_mask = 0;
mask = ntohl(((struct sockaddr_in *)sa)->sin_addr.s_addr);
while (mask & index) {
new_mask++;
index >>= 1;
}
sprintf(str, "/%hu", new_mask);
return (str);
}
case AF_UNSPEC:
case AF_INET: {
struct sockaddr_in *sin = (struct sockaddr_in *)sa;
if (inet_ntop(AF_INET, &sin->sin_addr, str, sizeof(str))
== NULL)
return (NULL);
if (ntohs(sin->sin_port) != 0) {
snprintf(portstr, sizeof(portstr), ".%d",
ntohs(sin->sin_port));
strcat(str, portstr);
}
if (strcmp(str, "0.0.0.0") == 0)
sprintf(str, "default");
return (str);
}
case AF_UNIX: {
struct sockaddr_un *unp = (struct sockaddr_un *)sa;
/*
* OK to have no pathname bound to the socket:
* happens on every connect() unless client calls
* bind() first.
*/
if (unp->sun_path[0] == 0)
strcpy(str, "(no pathname bound)");
else
snprintf(str, sizeof(str), "%s", unp->sun_path);
return (str);
}
case AF_LINK: {
struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
if (sdl->sdl_nlen > 0) {
bcopy(&sdl->sdl_data[0], str, sdl->sdl_nlen);
str[sdl->sdl_nlen] = '\0';
} else
snprintf(str, sizeof(str), "link#%d", sdl->sdl_index);
return (str);
}
default:
snprintf(str, sizeof(str),
"sock_ntop: unknown AF_xxx: %d, len %d", sa->sa_family,
salen);
return (str);
}
return (NULL);
}
char *
Sock_ntop(const struct sockaddr *sa, size_t salen)
{
char *ptr;
if ((ptr = sock_ntop(sa, salen)) == NULL)
err(1, "sock_ntop error"); /* inet_ntop() sets errno */
return (ptr);
}
#define ROUNDUP(a,size) (((a) & ((size)-1))?(1+((a)|((size)-1))):(a))
#define NEXT_SA(ap) \
ap=(struct sockaddr *) \
((caddr_t)ap+(ap->sa_len?ROUNDUP(ap->sa_len,sizeof(u_long)):\
sizeof(u_long)))
void
get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info)
{
int i;
for (i = 0; i < RTAX_MAX; i++) {
if (addrs & (1 << i)) {
rti_info[i] = sa;
NEXT_SA(sa);
} else
rti_info[i] = NULL;
}
}
void
get_flags(char *buf, int flags)
{
if (flags & 0x1)
strcat(buf, "U");
if (flags & 0x2)
strcat(buf, "G");
if (flags & 0x4)
strcat(buf, "H");
if (flags & 0x8)
strcat(buf, "r");
if (flags & 0x10)
strcat(buf, "d");
#ifdef NEVER
if (flags & 0x20)
strcat(buf, "mod,");
#endif /*NEVER*/
if (flags & 0x100)
strcat(buf, "C");
if (flags & 0x400)
strcat(buf, "L");
if (flags & 0x800)
strcat(buf, "S");
if (flags & 0x10000)
strcat(buf, "c");
if (flags & 0x20000)
strcat(buf, "W");
#ifdef NEVER
if (flags & 0x200000)
strcat(buf, ",LOC");
#endif /*NEVER*/
if (flags & 0x400000)
strcat(buf, "b");
#ifdef NEVER
if (flags & 0x800000)
strcat(buf, ",MCA");
#endif /*NEVER*/
}
int
print_routing(char *proto)
{
int mib[6];
int i = 0;
int rt_len;
int if_len;
int if_num;
char *rt_buf;
char *if_buf;
char *next;
char *lim;
struct rt_msghdr *rtm;
struct if_msghdr *ifm;
struct if_msghdr **ifm_table;
struct ifa_msghdr *ifam;
struct sockaddr *sa;
struct sockaddr *sa1;
struct sockaddr *rti_info[RTAX_MAX];
struct sockaddr **if_table;
struct rt_metrics rm;
char fbuf[50];
/* keep a copy of statistics here for future use */
static unsigned *base_stats = NULL ;
static unsigned base_len = 0 ;
/* Get the routing table */
mib[0] = CTL_NET;
mib[1] = PF_ROUTE;
mib[2] = 0;
mib[3] = 0;
mib[4] = NET_RT_DUMP;
mib[5] = 0;
/*Estimate the size of table */
if (sysctl(mib, 6, NULL, &rt_len, NULL, 0) == -1) {
perror("sysctl size");
exit(-1);
}
if ((rt_buf = (char *)malloc(rt_len)) == NULL) {
perror("malloc");
exit(-1);
}
/* Now get it. */
if (sysctl(mib, 6, rt_buf, &rt_len, NULL, 0) == -1) {
perror("sysctl get");
exit(-1);
}
/* Get the interfaces table */
mib[0] = CTL_NET;
mib[1] = PF_ROUTE;
mib[2] = 0;
mib[3] = 0;
mib[4] = NET_RT_IFLIST;
mib[5] = 0;
/* Estimate the size of table */
if (sysctl(mib, 6, NULL, &if_len, NULL, 0) == -1) {
perror("sysctl size");
exit(-1);
}
if ((if_buf = (char *)malloc(if_len)) == NULL) {
perror("malloc");
exit(-1);
}
/* Now get it. */
if (sysctl(mib, 6, if_buf, &if_len, NULL, 0) == -1) {
perror("sysctl get");
exit(-1);
}
lim = if_buf + if_len;
i = 0;
for (next = if_buf, i = 0; next < lim; next += ifm->ifm_msglen) {
ifm = (struct if_msghdr *)next;
i++;
}
if_num = i;
if_table = (struct sockaddr **)calloc(i, sizeof(struct sockaddr));
ifm_table = (struct if_msghdr **)calloc(i, sizeof(struct if_msghdr));
if (iflag) {
printf("\nInterface table:\n");
printf("----------------\n");
printf("Name Mtu Network Address "
"Ipkts Ierrs Opkts Oerrs Coll\n");
}
/* scan the list and store base values */
i = 0 ;
for (next = if_buf; next < lim; next += ifm->ifm_msglen) {
ifm = (struct if_msghdr *)next;
i++ ;
}
if (base_stats == NULL || i != base_len) {
base_stats = calloc(i*5, sizeof(unsigned));
base_len = i ;
}
i = 0;
for (next = if_buf; next < lim; next += ifm->ifm_msglen) {
ifm = (struct if_msghdr *)next;
if_table[i] = (struct sockaddr *)(ifm + 1);
ifm_table[i] = ifm;
sa = if_table[i];
if (iflag && sa->sa_family == AF_LINK) {
struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
unsigned *bp = &base_stats[i*5];
printf("%-4s %-5d <Link> ",
sock_ntop(if_table[i], if_table[i]->sa_len),
ifm->ifm_data.ifi_mtu);
if (sdl->sdl_alen == 6) {
unsigned char *p =
sdl->sdl_data + sdl->sdl_nlen;
printf("%02x:%02x:%02x:%02x:%02x:%02x ",
p[0], p[1], p[2], p[3], p[4], p[5]);
} else
printf(" ");
printf("%9d%6d%9d%6d%6d\n",
ifm->ifm_data.ifi_ipackets - bp[0],
ifm->ifm_data.ifi_ierrors - bp[1],
ifm->ifm_data.ifi_opackets - bp[2],
ifm->ifm_data.ifi_oerrors - bp[3],
ifm->ifm_data.ifi_collisions -bp[4]);
if (delta > 0) {
bp[0] = ifm->ifm_data.ifi_ipackets ;
bp[1] = ifm->ifm_data.ifi_ierrors ;
bp[2] = ifm->ifm_data.ifi_opackets ;
bp[3] = ifm->ifm_data.ifi_oerrors ;
bp[4] = ifm->ifm_data.ifi_collisions ;
}
}
i++;
}
if (!rflag) {
free(rt_buf);
free(if_buf);
free(if_table);
free(ifm_table);
return;
}
/* Now dump the routing table */
printf("\nRouting table:\n");
printf("--------------\n");
printf
("Destination Gateway Flags Netif Use\n");
lim = rt_buf + rt_len;
for (next = rt_buf; next < lim; next += rtm->rtm_msglen) {
rtm = (struct rt_msghdr *)next;
sa = (struct sockaddr *)(rtm + 1);
get_rtaddrs(rtm->rtm_addrs, sa, rti_info);
if (rtm->rtm_flags & RTF_WASCLONED) {
if ((rtm->rtm_flags & RTF_LLINFO) == 0)
continue;
}
if ((sa = rti_info[RTAX_DST]) != NULL) {
sprintf(fbuf, "%s", sock_ntop(sa, sa->sa_len));
if (((sa1 = rti_info[RTAX_NETMASK]) != NULL)
&& sa1->sa_family == 255) {
strcat(fbuf, sock_ntop(sa1, sa1->sa_len));
}
printf("%-19s", fbuf);
}
if ((sa = rti_info[RTAX_GATEWAY]) != NULL) {
printf("%-19s", sock_ntop(sa, sa->sa_len));
}
memset(fbuf, 0, sizeof(fbuf));
get_flags(fbuf, rtm->rtm_flags);
printf("%-10s", fbuf);
for (i = 0; i < if_num; i++) {
ifm = ifm_table[i];
if ((ifm->ifm_index == rtm->rtm_index) &&
(ifm->ifm_data.ifi_type > 0)) {
sa = if_table[i];
break;
}
}
if (ifm->ifm_type == RTM_IFINFO) {
get_rtaddrs(ifm->ifm_addrs, sa, rti_info);
printf(" %s", Sock_ntop(sa, sa->sa_len));
} else if (ifm->ifm_type == RTM_NEWADDR) {
ifam =
(struct ifa_msghdr *)ifm_table[rtm->rtm_index - 1];
sa = (struct sockaddr *)(ifam + 1);
get_rtaddrs(ifam->ifam_addrs, sa, rti_info);
printf(" %s", Sock_ntop(sa, sa->sa_len));
}
printf(" %u", rtm->rtm_use);
printf("\n");
}
free(rt_buf);
free(if_buf);
free(if_table);
free(ifm_table);
return;
}
print_ip_stats()
{
int mib[4];
int len;
struct ipstat s;
mib[0] = CTL_NET;
mib[1] = PF_INET;
mib[2] = IPPROTO_IP;
#ifndef IPCTL_STATS
printf("sorry, ip stats not available\n");
return -1;
#else
mib[3] = IPCTL_STATS;
len = sizeof(struct ipstat);
if (sysctl(mib, 4, &s, &len, NULL, 0) < 0) {
perror("sysctl");
return (-1);
}
printf("\nIP statistics:\n");
printf("--------------\n");
printf(" %10lu total packets received\n", s.ips_total);
printf("* Packets ok:\n");
printf(" %10lu fragments received\n", s.ips_fragments);
printf(" %10lu forwarded\n", s.ips_forward);
#if __FreeBSD_version > 300001
printf(" %10lu fast forwarded\n", s.ips_fastforward);
#endif
printf(" %10lu forwarded on same net (redirect)\n",
s.ips_redirectsent);
printf(" %10lu delivered to upper level\n", s.ips_delivered);
printf(" %10lu total ip packets generated here\n", s.ips_localout);
printf(" %10lu total packets reassembled ok\n", s.ips_reassembled);
printf(" %10lu total datagrams successfully fragmented\n",
s.ips_fragmented);
printf(" %10lu output fragments created\n", s.ips_ofragments);
printf(" %10lu total raw IP packets generated\n", s.ips_rawout);
printf("\n* Bad packets:\n");
printf(" %10lu bad checksum\n", s.ips_badsum);
printf(" %10lu too short\n", s.ips_tooshort);
printf(" %10lu not enough data (too small)\n", s.ips_toosmall);
printf(" %10lu more data than declared in header\n", s.ips_badhlen);
printf(" %10lu less data than declared in header\n", s.ips_badlen);
printf(" %10lu fragments dropped (dups, no mbuf)\n",
s.ips_fragdropped);
printf(" %10lu fragments timed out in reassembly\n",
s.ips_fragtimeout);
printf(" %10lu received for unreachable dest.\n", s.ips_cantforward);
printf(" %10lu unknown or unsupported protocol\n", s.ips_noproto);
printf(" %10lu lost due to no bufs etc.\n", s.ips_odropped);
printf(" %10lu couldn't fragment (DF set, etc.)\n", s.ips_cantfrag);
printf(" %10lu error in IP options processing\n", s.ips_badoptions);
printf(" %10lu dropped due to no route\n", s.ips_noroute);
printf(" %10lu bad IP version\n", s.ips_badvers);
printf(" %10lu too long (more than max IP size)\n", s.ips_toolong);
#if __FreeBSD_version > 300001
printf(" %10lu multicast for unregistered groups\n", s.ips_notmember);
#endif
#endif
}
print_tcp_stats()
{
int mib[4];
int len;
struct tcpstat s;
mib[0] = CTL_NET;
mib[1] = PF_INET;
mib[2] = IPPROTO_TCP;
#ifndef TCPCTL_STATS
printf("sorry, tcp stats not available\n");
return -1;
#else
mib[3] = TCPCTL_STATS;
len = sizeof(struct tcpstat);
if (sysctl(mib, 4, &s, &len, NULL, 0) < 0) {
perror("sysctl");
return (-1);
}
printf("\nTCP statistics:\n");
printf("---------------\n");
printf("* Connections:\n");
printf(" %10lu initiated\n", s.tcps_connattempt);
printf(" %10lu accepted\n", s.tcps_accepts);
printf(" %10lu established\n", s.tcps_connects);
printf(" %10lu dropped\n", s.tcps_drops);
printf(" %10lu embryonic connections dropped\n", s.tcps_conndrops);
printf(" %10lu closed (includes dropped)\n", s.tcps_closed);
printf(" %10lu segments where we tried to get RTT\n",
s.tcps_segstimed);
printf(" %10lu times RTT successfully updated\n", s.tcps_rttupdated);
printf(" %10lu delayed ACKs sent\n", s.tcps_delack);
printf(" %10lu dropped in rxmt timeout\n", s.tcps_timeoutdrop);
printf(" %10lu retrasmit timeouts\n", s.tcps_rexmttimeo);
printf(" %10lu persist timeouts\n", s.tcps_persisttimeo);
printf(" %10lu keepalive timeouts\n", s.tcps_keeptimeo);
printf(" %10lu keepalive probes sent\n", s.tcps_keepprobe);
printf(" %10lu dropped in keepalive\n", s.tcps_keepdrops);
printf("* Packets sent:\n");
printf(" %10lu total packets sent\n", s.tcps_sndtotal);
printf(" %10lu data packets sent\n", s.tcps_sndpack);
printf(" %10lu data bytes sent\n", s.tcps_sndbyte);
printf(" %10lu data packets retransmitted\n", s.tcps_sndrexmitpack);
printf(" %10lu data bytes retransmitted\n", s.tcps_sndrexmitbyte);
printf(" %10lu ACK-only packets sent\n", s.tcps_sndacks);
printf(" %10lu window probes sent\n", s.tcps_sndprobe);
printf(" %10lu URG-only packets sent\n", s.tcps_sndurg);
printf(" %10lu window update-only packets sent\n", s.tcps_sndwinup);
printf(" %10lu control (SYN,FIN,RST) packets sent\n", s.tcps_sndctrl);
printf("* Packets received:\n");
printf(" %10lu total packets received\n", s.tcps_rcvtotal);
printf(" %10lu packets in sequence\n", s.tcps_rcvpack);
printf(" %10lu bytes in sequence\n", s.tcps_rcvbyte);
printf(" %10lu packets with bad checksum\n", s.tcps_rcvbadsum);
printf(" %10lu packets with bad offset\n", s.tcps_rcvbadoff);
printf(" %10lu packets too short\n", s.tcps_rcvshort);
printf(" %10lu duplicate-only packets\n", s.tcps_rcvduppack);
printf(" %10lu duplicate-only bytes\n", s.tcps_rcvdupbyte);
printf(" %10lu packets with some duplicate data\n",
s.tcps_rcvpartduppack);
printf(" %10lu duplicate bytes in partially dup. packets\n",
s.tcps_rcvpartdupbyte);
printf(" %10lu out-of-order packets\n", s.tcps_rcvoopack);
printf(" %10lu out-of-order bytes\n", s.tcps_rcvoobyte);
printf(" %10lu packets with data after window\n",
s.tcps_rcvpackafterwin);
printf(" %10lu bytes received after window\n",
s.tcps_rcvbyteafterwin);
printf(" %10lu packets received after 'close'\n",
s.tcps_rcvafterclose);
printf(" %10lu window probe packets\n", s.tcps_rcvwinprobe);
printf(" %10lu duplicate ACKs\n", s.tcps_rcvdupack);
printf(" %10lu ACKs for unsent data\n", s.tcps_rcvacktoomuch);
printf(" %10lu ACK packets\n", s.tcps_rcvackpack);
printf(" %10lu bytes ACKed by received ACKs\n", s.tcps_rcvackbyte);
printf(" %10lu window update packets\n", s.tcps_rcvwinupd);
printf(" %10lu segments dropped due to PAWS\n", s.tcps_pawsdrop);
printf(" %10lu times header predict ok for ACKs\n", s.tcps_predack);
printf(" %10lu times header predict ok for data packets\n",
s.tcps_preddat);
printf(" %10lu PCB cache misses\n", s.tcps_pcbcachemiss);
printf(" %10lu times cached RTT in route updated\n",
s.tcps_cachedrtt);
printf(" %10lu times cached RTTVAR updated\n", s.tcps_cachedrttvar);
printf(" %10lu times ssthresh updated\n", s.tcps_cachedssthresh);
printf(" %10lu times RTT initialized from route\n", s.tcps_usedrtt);
printf(" %10lu times RTTVAR initialized from route\n",
s.tcps_usedrttvar);
printf(" %10lu times ssthresh initialized from route\n",
s.tcps_usedssthresh);
printf(" %10lu timeout in persist state\n", s.tcps_persistdrop);
printf(" %10lu bogus SYN, e.g. premature ACK\n", s.tcps_badsyn);
printf(" %10lu resends due to MTU discovery\n", s.tcps_mturesent);
printf(" %10lu listen queue overflows\n", s.tcps_listendrop);
#endif
}
print_udp_stats()
{
int mib[4];
int len;
struct udpstat s;
mib[0] = CTL_NET;
mib[1] = PF_INET;
mib[2] = IPPROTO_UDP;
mib[3] = UDPCTL_STATS;
len = sizeof(struct udpstat);
if (sysctl(mib, 4, &s, &len, NULL, 0) < 0) {
perror("sysctl");
return (-1);
}
printf("\nUDP statistics:\n");
printf("---------------\n");
printf("* Packets received:\n");
printf(" %10lu total input packets\n", s.udps_ipackets);
printf(" %10lu packets shorter than header (dropped)\n",
s.udps_hdrops);
printf(" %10lu bad checksum\n", s.udps_badsum);
printf(" %10lu data length larger than packet\n", s.udps_badlen);
printf(" %10lu no socket on specified port\n", s.udps_noport);
printf(" %10lu of above, arrived as broadcast\n", s.udps_noportbcast);
printf(" %10lu not delivered, input socket full\n", s.udps_fullsock);
printf(" %10lu packets missing PCB cache\n", s.udpps_pcbcachemiss);
printf(" %10lu packets not for hashed PCBs\n", s.udpps_pcbhashmiss);
printf("* Packets sent:\n");
printf(" %10lu total output packets\n", s.udps_opackets);
#if __FreeBSD_version > 300001
printf(" %10lu output packets on fast path\n", s.udps_fastout);
#endif
}
char *icmp_names[] = {
"echo reply",
"#1",
"#2",
"destination unreachable",
"source quench",
"routing redirect",
"#6",
"#7",
"echo",
"router advertisement",
"router solicitation",
"time exceeded",
"parameter problem",
"time stamp",
"time stamp reply",
"information request",
"information request reply",
"address mask request",
"address mask reply",
};
print_icmp_stats()
{
int mib[4];
int len;
int i;
struct icmpstat s;
mib[0] = CTL_NET;
mib[1] = PF_INET;
mib[2] = IPPROTO_ICMP;
mib[3] = ICMPCTL_STATS;
len = sizeof(struct icmpstat);
if (sysctl(mib, 4, &s, &len, NULL, 0) < 0) {
perror("sysctl");
return (-1);
}
printf("\nICMP statistics:\n");
printf("----------------\n");
printf("* Output histogram:\n");
for (i = 0; i < (ICMP_MAXTYPE + 1); i++) {
if (s.icps_outhist[i] > 0)
printf("\t%10lu %s\n",
s.icps_outhist[i], icmp_names[i]);
}
printf("* Input histogram:\n");
for (i = 0; i < (ICMP_MAXTYPE + 1); i++) {
if (s.icps_inhist[i] > 0)
printf("\t%10lu %s\n",
s.icps_inhist[i], icmp_names[i]);
}
printf("* Other stats:\n");
printf(" %10lu calls to icmp_error\n", s.icps_error);
printf(" %10lu no error 'cuz old ip too short\n", s.icps_oldshort);
printf(" %10lu no error 'cuz old was icmp\n", s.icps_oldicmp);
printf(" %10lu icmp code out of range\n", s.icps_badcode);
printf(" %10lu packets shorter than min length\n", s.icps_tooshort);
printf(" %10lu bad checksum\n", s.icps_checksum);
printf(" %10lu calculated bound mismatch\n", s.icps_badlen);
printf(" %10lu number of responses\n", s.icps_reflect);
printf(" %10lu broad/multi-cast echo requests dropped\n",
s.icps_bmcastecho);
printf(" %10lu broad/multi-cast timestamp requests dropped\n",
s.icps_bmcasttstamp);
}
int
stats(char *proto)
{
if (!sflag)
return 0;
if (pflag) {
if (proto == NULL) {
fprintf(stderr, "Option '-p' requires paramter.\n");
usage();
exit(-1);
}
if (strcmp(proto, "ip") == 0)
print_ip_stats();
if (strcmp(proto, "icmp") == 0)
print_icmp_stats();
if (strcmp(proto, "udp") == 0)
print_udp_stats();
if (strcmp(proto, "tcp") == 0)
print_tcp_stats();
#ifdef BRIDGING
if (strcmp(proto, "bdg") == 0)
print_bdg_stats();
#endif
return (0);
}
print_ip_stats();
print_icmp_stats();
print_udp_stats();
print_tcp_stats();
#ifdef BRIDGING
print_bdg_stats();
#endif
return (0);
}
int
main(int argc, char *argv[])
{
char c;
char *proto = NULL;
progname = argv[0];
while ((c = getopt(argc, argv, "dilnrsp:w:")) != -1) {
switch (c) {
case 'd': /* print deltas in stats every w seconds */
delta++ ;
break;
case 'w':
wflag = atoi(optarg);
break;
case 'n': /* ignored, just for compatibility with std netstat */
break;
case 'r':
rflag++;
break;
case 'i':
iflag++;
break;
case 'l':
lflag++;
break;
case 's':
sflag++;
rflag = 0;
break;
case 'p':
pflag++;
sflag++;
proto = optarg;
break;
case '?':
default:
usage();
exit(0);
break;
}
}
if (rflag == 0 && sflag == 0 && iflag == 0)
rflag = 1;
argc -= optind;
if (argc > 0) {
usage();
exit(-1);
}
if (wflag)
printf("\033[H\033[J");
again:
if (wflag) {
struct timeval t;
gettimeofday(&t, NULL);
printf("\033[H%s", ctime(&t.tv_sec));
}
print_routing(proto);
print_load_stats();
stats(proto);
if (wflag) {
sleep(wflag);
goto again;
}
exit(0);
}
int
print_load_stats(void)
{
static u_int32_t cp_time[5];
u_int32_t new_cp_time[5];
int l;
int shz;
static int stathz ;
if (!lflag || !wflag)
return 0;
l = sizeof(new_cp_time) ;
bzero(new_cp_time, l);
if (sysctlbyname("kern.cp_time", new_cp_time, &l, NULL, 0) < 0) {
warn("sysctl: retrieving cp_time length");
return 0;
}
if (stathz == 0) {
struct clockinfo ci;
bzero (&ci, sizeof(ci));
l = sizeof(ci) ;
if (sysctlbyname("kern.clockrate", &ci, &l, NULL, 0) < 0) {
warn("sysctl: retrieving clockinfo length");
return 0;
}
stathz = ci.stathz ;
bcopy(new_cp_time, cp_time, sizeof(cp_time));
}
shz = stathz * wflag ;
if (shz == 0)
shz = 1;
#define X(i) ( (double)(new_cp_time[i] - cp_time[i])*100/shz )
printf("\nUSER %5.2f%% NICE %5.2f%% SYS %5.2f%% "
"INTR %5.2f%% IDLE %5.2f%%\n",
X(0), X(1), X(2), X(3), X(4) );
bcopy(new_cp_time, cp_time, sizeof(cp_time));
}
#ifdef BRIDGING
/* print bridge statistics */
int
print_bdg_stats()
{
int i;
int mib[4];
int slen;
struct bdg_stats s;
slen = sizeof(s);
mib[0] = CTL_NET;
mib[1] = PF_LINK;
mib[2] = IFT_ETHER;
mib[3] = PF_BDG;
if (sysctl(mib, 4, &s, &slen, NULL, 0) == -1) {
return 0; /* no bridging */
}
printf("-- Bridging statistics --\n");
printf(
"Name In Out Forward Drop Bcast"
"Mcast Local Unknown\n");
for (i = 0; i < 16; i++) {
if (s.s[i].name[0])
printf("%-6s %9d%9d%9d%9d%9d%9d%9d%9d\n",
s.s[i].name,
s.s[i].p_in[(int)BDG_IN],
s.s[i].p_in[(int)BDG_OUT],
s.s[i].p_in[(int)BDG_FORWARD],
s.s[i].p_in[(int)BDG_DROP],
s.s[i].p_in[(int)BDG_BCAST],
s.s[i].p_in[(int)BDG_MCAST],
s.s[i].p_in[(int)BDG_LOCAL],
s.s[i].p_in[(int)BDG_UNKNOWN]);
}
}
#endif
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