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Diffstat (limited to 'usr.sbin/ipsend/iptest/iptests.c')
-rw-r--r--usr.sbin/ipsend/iptest/iptests.c250
1 files changed, 185 insertions, 65 deletions
diff --git a/usr.sbin/ipsend/iptest/iptests.c b/usr.sbin/ipsend/iptest/iptests.c
index 9c74804963a..f18e77b2e70 100644
--- a/usr.sbin/ipsend/iptest/iptests.c
+++ b/usr.sbin/ipsend/iptest/iptests.c
@@ -1,18 +1,23 @@
+/* $OpenBSD: iptests.c,v 1.2 1998/01/26 04:17:11 dgregor Exp $ */
/*
- * (C)opyright 1993, 1994, 1995 by Darren Reed.
+ * Copyright (C) 1993-1997 by Darren Reed.
*
- * This code may be freely distributed as long as it retains this notice
- * and is not changed in any way. The author accepts no responsibility
- * for the use of this software. I hate legaleese, don't you ?
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and due credit is given
+ * to the original author and the contributors.
*/
-#ifndef lint
-static char sccsid[] = "%W% %G% (C)1995 Darren Reed";
+#if !defined(lint)
+static const char sccsid[] = "%W% %G% (C)1995 Darren Reed";
+static const char rcsid[] = "@(#)$Id: iptests.c,v 1.2 1998/01/26 04:17:11 dgregor Exp $";
#endif
#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/param.h>
-#if !defined(solaris)
+#if !defined(solaris) && !defined(linux) && !defined(__sgi)
# define _KERNEL
# define KERNEL
# include <sys/file.h>
@@ -22,45 +27,59 @@ static char sccsid[] = "%W% %G% (C)1995 Darren Reed";
# include <sys/user.h>
# include <sys/proc.h>
#endif
-#include <kvm.h>
-#include <sys/socket.h>
+#if !defined(ultrix) && !defined(hpux) && !defined(linux) && !defined(__sgi)
+# include <kvm.h>
+#endif
+#ifndef ultrix
+# include <sys/socket.h>
+#endif
+#if defined(solaris)
+# include <sys/stream.h>
+#endif
#include <sys/socketvar.h>
#ifdef sun
#include <sys/systm.h>
#include <sys/session.h>
#endif
#if BSD >= 199103
-#include <sys/sysctl.h>
-#include <sys/filedesc.h>
-#include <paths.h>
+# include <sys/sysctl.h>
+# include <sys/filedesc.h>
+# include <paths.h>
#endif
#include <netinet/in_systm.h>
#include <sys/socket.h>
#include <net/if.h>
-#include <net/route.h>
+#if defined(linux) && (LINUX >= 0200)
+# include <asm/atomic.h>
+#endif
+#if !defined(linux)
+# include <net/route.h>
+#else
+# define __KERNEL__ /* because there's a macro not wrapped by this */
+# include <net/route.h> /* in this file :-/ */
+#endif
#include <netinet/in.h>
+#include <arpa/inet.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include <netinet/ip_icmp.h>
-#include <netinet/if_ether.h>
-#include <netinet/ip_var.h>
-#include <netinet/in_pcb.h>
-#include <netinet/tcp_timer.h>
-#include <netinet/tcp_var.h>
-#include "ip_compat.h"
-#ifdef linux
-#include "tcpip.h"
-#else
-#include <netinet/tcpip.h>
-# if defined(__SVR4) || defined(__svr4__)
-#include <sys/sysmacros.h>
-# endif
+#ifndef linux
+# include <netinet/ip_var.h>
+# include <netinet/in_pcb.h>
+# include <netinet/tcp_timer.h>
+# include <netinet/tcp_var.h>
#endif
+#if defined(__SVR4) || defined(__svr4__) || defined(__sgi)
+# include <sys/sysmacros.h>
+#endif
+#include "ipsend.h"
+
#define PAUSE() tv.tv_sec = 0; tv.tv_usec = 10000; \
(void) select(0, NULL, NULL, NULL, &tv)
+
void ip_test1(dev, mtu, ip, gwip, ptest)
char *dev;
int mtu;
@@ -70,7 +89,7 @@ int ptest;
{
struct timeval tv;
udphdr_t *u;
- int nfd, i, len, id = getpid();
+ int nfd, i = 0, len, id = getpid();
ip->ip_hl = sizeof(*ip) >> 2;
ip->ip_v = IPVERSION;
@@ -166,11 +185,11 @@ int ptest;
ip->ip_len = htons(ip->ip_len);
ip->ip_off = htons(ip->ip_off);
printf("1.5.0 ip_len < packet size (size++, long packets)\n");
- for (; i < (ip->ip_len * 2); i++) {
+ for (; i < (ntohs(ip->ip_len) * 2); i++) {
ip->ip_id = htons(id++);
ip->ip_sum = 0;
- ip->ip_sum = chksum(ip, ip->ip_hl << 2);
- (void) send_ether(nfd, ip, i, gwip);
+ ip->ip_sum = chksum((u_short *)ip, ip->ip_hl << 2);
+ (void) send_ether(nfd, (char *)ip, i, gwip);
printf("%d\r", i);
fflush(stdout);
PAUSE();
@@ -181,8 +200,8 @@ int ptest;
ip->ip_id = htons(id++);
ip->ip_len = htons(i);
ip->ip_sum = 0;
- ip->ip_sum = chksum(ip, ip->ip_hl << 2);
- (void) send_ether(nfd, ip, len, gwip);
+ ip->ip_sum = chksum((u_short *)ip, ip->ip_hl << 2);
+ (void) send_ether(nfd, (char *)ip, len, gwip);
printf("%d\r", i);
fflush(stdout);
PAUSE();
@@ -200,8 +219,8 @@ int ptest;
ip->ip_id = htons(id++);
ip->ip_len = htons(i);
ip->ip_sum = 0;
- ip->ip_sum = chksum(ip, ip->ip_hl << 2);
- (void) send_ether(nfd, ip, len, gwip);
+ ip->ip_sum = chksum((u_short *)ip, ip->ip_hl << 2);
+ (void) send_ether(nfd, (char *)ip, len, gwip);
printf("%d\r", i);
fflush(stdout);
PAUSE();
@@ -212,8 +231,8 @@ int ptest;
for (i = len; i > 0; i--) {
ip->ip_id = htons(id++);
ip->ip_sum = 0;
- ip->ip_sum = chksum(ip, ip->ip_hl << 2);
- (void) send_ether(nfd, ip, i, gwip);
+ ip->ip_sum = chksum((u_short *)ip, ip->ip_hl << 2);
+ (void) send_ether(nfd, (char *)ip, i, gwip);
printf("%d\r", i);
fflush(stdout);
PAUSE();
@@ -264,12 +283,47 @@ int ptest;
gettimeofday(&tv, NULL);
srand(tv.tv_sec ^ getpid() ^ tv.tv_usec);
/*
- * Part8: 63k packet + 1k fragment at offset 0x1ffe
+ * Part8.1: 63k packet + 1k fragment at offset 0x1ffe
+ * Mark it as being ICMP (so it doesn't get junked), but
+ * don't bother about the ICMP header, we're not worrying
+ * about that here.
+ */
+ ip->ip_p = IPPROTO_ICMP;
+ ip->ip_off = IP_MF;
+ u->uh_dport = htons(9);
+ ip->ip_id = htons(id++);
+ printf("1.8.1 63k packet + 1k fragment at offset 0x1ffe\n");
+ ip->ip_len = 768 + 20 + 8;
+ (void) send_ip(nfd, mtu, ip, gwip, 1);
+ printf("%d\r", i);
+
+ ip->ip_len = MIN(768 + 20, mtu - 68);
+ i = 512;
+ for (; i < (63 * 1024 + 768); i += 768) {
+ ip->ip_off = IP_MF | (i >> 3);
+ (void) send_ip(nfd, mtu, ip, gwip, 1);
+ printf("%d\r", i);
+ fflush(stdout);
+ PAUSE();
+ }
+ ip->ip_len = 896 + 20;
+ ip->ip_off = (i >> 3);
+ (void) send_ip(nfd, mtu, ip, gwip, 1);
+ printf("%d\r", i);
+ putchar('\n');
+ fflush(stdout);
+
+ /*
+ * Part8.2: 63k packet + 1k fragment at offset 0x1ffe
+ * Mark it as being ICMP (so it doesn't get junked), but
+ * don't bother about the ICMP header, we're not worrying
+ * about that here. (Lossage here)
*/
+ ip->ip_p = IPPROTO_ICMP;
ip->ip_off = IP_MF;
u->uh_dport = htons(9);
ip->ip_id = htons(id++);
- printf("1.8. 63k packet + 1k fragment at offset 0x1ffe\n");
+ printf("1.8.2 63k packet + 1k fragment at offset 0x1ffe\n");
ip->ip_len = 768 + 20 + 8;
if ((rand() & 0x1f) != 0) {
(void) send_ip(nfd, mtu, ip, gwip, 1);
@@ -290,7 +344,7 @@ int ptest;
PAUSE();
}
ip->ip_len = 896 + 20;
- ip->ip_off = IP_MF | (i >> 3);
+ ip->ip_off = (i >> 3);
if ((rand() & 0x1f) != 0) {
(void) send_ip(nfd, mtu, ip, gwip, 1);
printf("%d\r", i);
@@ -298,6 +352,37 @@ int ptest;
printf("skip\n");
putchar('\n');
fflush(stdout);
+
+ /*
+ * Part8.3: 33k packet - test for not dealing with -ve length
+ * Mark it as being ICMP (so it doesn't get junked), but
+ * don't bother about the ICMP header, we're not worrying
+ * about that here.
+ */
+ ip->ip_p = IPPROTO_ICMP;
+ ip->ip_off = IP_MF;
+ u->uh_dport = htons(9);
+ ip->ip_id = htons(id++);
+ printf("1.8.3 33k packet\n");
+ ip->ip_len = 768 + 20 + 8;
+ (void) send_ip(nfd, mtu, ip, gwip, 1);
+ printf("%d\r", i);
+
+ ip->ip_len = MIN(768 + 20, mtu - 68);
+ i = 512;
+ for (; i < (32 * 1024 + 768); i += 768) {
+ ip->ip_off = IP_MF | (i >> 3);
+ (void) send_ip(nfd, mtu, ip, gwip, 1);
+ printf("%d\r", i);
+ fflush(stdout);
+ PAUSE();
+ }
+ ip->ip_len = 896 + 20;
+ ip->ip_off = (i >> 3);
+ (void) send_ip(nfd, mtu, ip, gwip, 1);
+ printf("%d\r", i);
+ putchar('\n');
+ fflush(stdout);
}
ip->ip_len = len;
@@ -352,8 +437,7 @@ struct in_addr gwip;
int ptest;
{
struct timeval tv;
- udphdr_t *u;
- int nfd, i, len, id = getpid();
+ int nfd;
u_char *s;
s = (u_char *)(ip + 1);
@@ -445,8 +529,7 @@ int ptest;
static int ict2[8] = { 3, 9, 10, 13, 14, 17, 18, 0 };
struct timeval tv;
struct icmp *icp;
- int nfd, i, len, id = getpid();
- u_char *s;
+ int nfd, i;
ip->ip_hl = sizeof(*ip) >> 2;
ip->ip_v = IPVERSION;
@@ -637,8 +720,8 @@ struct in_addr gwip;
int ptest;
{
struct timeval tv;
- struct udphdr *u;
- int nfd, i, len, id = getpid();
+ udphdr_t *u;
+ int nfd, i;
ip->ip_hl = sizeof(*ip) >> 2;
@@ -768,10 +851,10 @@ int ptest;
PAUSE();
}
- if (!ptest || (ptest == 4)) {
+ if (!ptest || (ptest == 5)) {
/*
- * Test 5: sizeof(struct ip) <= MTU <= sizeof(struct udphdr) +
- * sizeof(struct ip)
+ * Test 5: sizeof(ip_t) <= MTU <= sizeof(udphdr_t) +
+ * sizeof(ip_t)
*/
printf("4.5 UDP 20 <= MTU <= 32\n");
for (i = sizeof(*ip); i <= u->uh_ulen; i++) {
@@ -796,10 +879,12 @@ int ptest;
{
struct timeval tv;
tcphdr_t *t;
- int nfd, i, len, id = getpid();
+ int nfd, i;
t = (tcphdr_t *)((char *)ip + (ip->ip_hl << 2));
+#ifndef linux
t->th_x2 = 0;
+#endif
t->th_off = 0;
t->th_sport = 1;
t->th_dport = 1;
@@ -808,6 +893,7 @@ int ptest;
t->th_sum = 0;
t->th_seq = 1;
t->th_ack = 0;
+ ip->ip_len = sizeof(ip_t) + sizeof(tcphdr_t);
nfd = initdevice(dev, t->th_sport, 1);
if (!ptest || (ptest == 1)) {
@@ -937,9 +1023,10 @@ int ptest;
PAUSE();
}
-#if !defined(linux) && !defined(__SVR4) && !defined(__svr4__)
+#if !defined(linux) && !defined(__SVR4) && !defined(__svr4__) && \
+ !defined(__sgi)
{
- struct tcpcb *t, tcb;
+ struct tcpcb *tcbp, tcb;
struct tcpiphdr ti;
struct sockaddr_in sin;
int fd, slen;
@@ -948,10 +1035,13 @@ int ptest;
for (i = 1; i < 63; i++) {
fd = socket(AF_INET, SOCK_STREAM, 0);
+ bzero((char *)&sin, sizeof(sin));
sin.sin_addr.s_addr = ip->ip_dst.s_addr;
sin.sin_port = htons(i);
+ sin.sin_family = AF_INET;
if (!connect(fd, (struct sockaddr *)&sin, sizeof(sin)))
break;
+ close(fd);
}
if (i == 63) {
@@ -962,15 +1052,15 @@ int ptest;
}
bcopy((char *)ip, (char *)&ti, sizeof(*ip));
- ti.ti_dport = i;
+ t->th_dport = htons(i);
slen = sizeof(sin);
if (!getsockname(fd, (struct sockaddr *)&sin, &slen))
- ti.ti_sport = sin.sin_port;
- if (!(t = (struct tcpcb *)find_tcp(fd, &ti))) {
+ t->th_sport = sin.sin_port;
+ if (!(tcbp = find_tcp(fd, &ti))) {
printf("Can't find PCB\n");
goto skip_five_and_six;
}
- kmemcpy((char*)&tcb, (void *)t, sizeof(tcb));
+ KMCPY(&tcb, tcbp, sizeof(tcb));
ti.ti_win = tcb.rcv_adv;
ti.ti_seq = tcb.snd_nxt - 1;
ti.ti_ack = tcb.rcv_nxt;
@@ -979,27 +1069,36 @@ int ptest;
/*
* Test 5: urp
*/
- printf("5.1 TCP Urgent pointer\n");
- ti.ti_urp = 1;
+ t->th_flags = TH_ACK|TH_URG;
+ printf("5.5.1 TCP Urgent pointer, sport %hu dport %hu\n",
+ ntohs(t->th_sport), ntohs(t->th_dport));
+ t->th_urp = htons(1);
(void) send_tcp(nfd, mtu, ip, gwip);
PAUSE();
- ti.ti_urp = 0x7fff;
+
+ t->th_seq = tcb.snd_nxt;
+ ip->ip_len = sizeof(ip_t) + sizeof(tcphdr_t) + 1;
+ t->th_urp = htons(0x7fff);
(void) send_tcp(nfd, mtu, ip, gwip);
PAUSE();
- ti.ti_urp = 0x8000;
+ t->th_urp = htons(0x8000);
(void) send_tcp(nfd, mtu, ip, gwip);
PAUSE();
- ti.ti_urp = 0xffff;
+ t->th_urp = htons(0xffff);
(void) send_tcp(nfd, mtu, ip, gwip);
PAUSE();
+ t->th_urp = htons(0);
+ t->th_flags &= ~TH_URG;
+ ip->ip_len = sizeof(ip_t) + sizeof(tcphdr_t);
}
if (!ptest || (ptest == 6)) {
/*
* Test 6: data offset, off = 0, off is inside, off is outside
*/
- printf("6.1 TCP off = 0-15, len = 40\n");
- for (i = 0; i < 16; i++) {
+ t->th_flags = TH_ACK;
+ printf("5.6.1 TCP off = 1-15, len = 40\n");
+ for (i = 1; i < 16; i++) {
ti.ti_off = ntohs(i);
(void) send_tcp(nfd, mtu, ip, gwip);
printf("%d\r", i);
@@ -1007,6 +1106,7 @@ int ptest;
PAUSE();
}
putchar('\n');
+ ip->ip_len = sizeof(ip_t) + sizeof(tcphdr_t);
}
(void) close(fd);
@@ -1015,9 +1115,9 @@ skip_five_and_six:
#endif
t->th_seq = 1;
t->th_ack = 1;
+ t->th_off = 0;
if (!ptest || (ptest == 7)) {
- t->th_off = 0;
t->th_flags = TH_SYN;
/*
* Test 7: sport = 0, sport = 1, sport = 32767
@@ -1056,6 +1156,7 @@ skip_five_and_six:
if (!ptest || (ptest == 8)) {
t->th_sport = 1;
+ t->th_flags = TH_SYN;
/*
* Test 8: dport = 0, dport = 1, dport = 32767
* dport = 32768, dport = 65535
@@ -1090,6 +1191,22 @@ skip_five_and_six:
fflush(stdout);
PAUSE();
}
+
+ /* LAND attack - self connect, so make src & dst ip/port the same */
+ if (!ptest || (ptest == 9)) {
+ printf("5.9 TCP LAND attack. sport = 25, dport = 25\n");
+ /* chose SMTP port 25 */
+ t->th_sport = htons(25);
+ t->th_dport = htons(25);
+ t->th_flags = TH_SYN;
+ ip->ip_src = ip->ip_dst;
+ (void) send_tcp(nfd, mtu, ip, gwip);
+ fflush(stdout);
+ PAUSE();
+ }
+
+ /* TCP options header checking */
+ /* 0 length options, etc */
}
@@ -1104,7 +1221,7 @@ int ptest;
{
struct timeval tv;
udphdr_t *u;
- int nfd, i, j, k, len, id = getpid();
+ int nfd, i, j, k;
ip->ip_v = IPVERSION;
ip->ip_tos = 0;
@@ -1122,7 +1239,10 @@ int ptest;
u->uh_dport = htons(u->uh_dport);
u->uh_ulen = 7168;
- for (i = 0; i < 65536; i++) {
+ printf("6. Exhaustive mbuf test.\n");
+ printf(" Send 7k packet in 768 & 128 byte fragments, 128 times.\n");
+ printf(" Total of around 8,900 packets\n");
+ for (i = 0; i < 128; i++) {
/*
* First send the entire packet in 768 byte chunks.
*/
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-14 22:58:36 +0000