v1.1.3-RC-01 from http://www.packetfactory.net/projects/libnet/

1 files changed, 190 insertions, 0 deletions

diff --git a/libnet/sample/.#icmp_unreach.c.1.2 b/libnet/sample/.#icmp_unreach.c.1.2
new file mode 100644
index 0000000..0c155db
--- /dev/null
+++ b/libnet/sample/.#icmp_unreach.c.1.2
@@ -0,0 +1,190 @@
+/*
+ *  $Id: icmp_unreach.c,v 1.2 2004/01/03 20:31:01 mike Exp $
+ *
+ *  libnet 1.1
+ *  Build an ICMP unreachable packet
+ *
+ *  Hacked by Aaron Turner <aturner@pobox.com> to illustrate two bugs
+ *
+ *  Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
+ *  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.
+ *
+ */
+
+#if (HAVE_CONFIG_H)
+#include "../include/config.h"
+#endif
+#include "./libnet_test.h"
+
+int
+main(int argc, char **argv)
+{
+    int c, i;
+    libnet_t *l = NULL;
+    libnet_ptag_t icmp = 0, ip = 0, eth = 0;
+    u_long src_ip, dst_ip; 
+    u_char payload[8] = {0x11, 0x11, 0x22, 0x22, 0x00, 0x08, 0xc6, 0xa5};
+    u_long payload_s = 8;
+    int mode = LIBNET_LINK;
+    char errbuf[LIBNET_ERRBUF_SIZE];
+
+    printf("libnet 1.1 packet shaping: ICMP unreachable[link]\n"); 
+
+    src_ip = 0;
+    dst_ip = 0;
+
+    while((c = getopt(argc, argv, "d:s:r")) != EOF)
+    {
+        switch (c)
+        {
+            case 'd':
+                if ((dst_ip = libnet_name2addr4(l, optarg, LIBNET_RESOLVE)) == -1)
+                {
+                    fprintf(stderr, "Bad destination IP address: %s\n", optarg);
+                    exit(1);
+                }
+                break;
+            case 's':
+                if ((src_ip = libnet_name2addr4(l, optarg, LIBNET_RESOLVE)) == -1)
+                {
+                    fprintf(stderr, "Bad source IP address: %s\n", optarg);
+                    exit(1);
+                }
+                break;
+            case 'r':
+                mode = LIBNET_RAW4;
+                break;
+        }
+    }
+    if (!src_ip || !dst_ip)
+    {
+        usage(argv[0]);
+        exit(EXIT_FAILURE);
+    }
+
+    /*
+     *  Initialize the library.  Root priviledges are required.
+     */
+    l = libnet_init(
+            mode,                            /* injection type */
+            NULL,                                   /* network interface */
+            errbuf);                                /* errbuf */
+ 
+    if (l == NULL)
+    {
+        fprintf(stderr, "libnet_init() failed: %s", errbuf);
+        exit(EXIT_FAILURE);
+    }
+
+for (i = 1; i <= 255; i ++) {
+    icmp = libnet_build_icmpv4_unreach(
+        ICMP_UNREACH,                               /* type */
+        ICMP_UNREACH_PORT,                          /* code */
+        0,                                          /* checksum */
+            LIBNET_IPV4_H + payload_s,              /* o length */
+            IPTOS_LOWDELAY | IPTOS_THROUGHPUT,      /* o IP tos */
+            (u_int16_t)i,                           /* o IP ID */
+            0,                                      /* o frag */
+            64,                                     /* o TTL */
+            IPPROTO_UDP,                            /* o protocol */
+            0,                                      /* o checksum */
+            dst_ip,                                 /* o source IP */
+            src_ip,                                 /* o destination IP */
+            payload,                                /* payload */
+            payload_s,                              /* payload size */
+        l,                                          /* libnet handle */
+        icmp);
+    if (icmp == -1)
+    {
+        fprintf(stderr, "Can't build ICMP header: %s\n", libnet_geterror(l));
+        goto bad;
+    }
+
+    ip = libnet_build_ipv4(
+        LIBNET_IPV4_H + LIBNET_ICMPV4_UNREACH_H +
+        LIBNET_IPV4_H + payload_s,                  /* length */
+        IPTOS_LOWDELAY | IPTOS_THROUGHPUT,          /* TOS */
+        (u_int16_t)i,                               /* IP ID */
+        0,                                          /* IP Frag */
+        64,                                         /* TTL */
+        IPPROTO_ICMP,                               /* protocol */
+        0,                                          /* checksum */
+        src_ip,                                     /* source IP */
+        dst_ip,                                     /* destination IP */
+        NULL,                                       /* payload */
+        0,                                          /* payload size */
+        l,                                          /* libnet handle */
+        ip);
+    if (ip == -1)
+    {
+        fprintf(stderr, "Can't build IP header: %s\n", libnet_geterror(l));
+        goto bad;
+    }
+
+    if (mode == LIBNET_LINK) {
+    eth = libnet_build_ethernet(
+       enet_dst,                                   /* ethernet destination */
+        enet_src,                                   /* ethernet source */
+        ETHERTYPE_IP,                               /* protocol type */
+        NULL,                                       /* payload */
+        0,                                          /* payload size */
+        l,                                          /* libnet handle */
+        eth);                                         /* libnet id */
+
+    if (eth == -1)
+    {
+        fprintf(stderr, "Can't build ethernet header: %s\n", libnet_geterror(l));
+        goto bad;
+    }
+    }
+    /*
+     *  Write it to the wire.
+     */
+    libnet_diag_dump_pblock(l);
+    c = libnet_write(l);
+    if (c == -1)
+    {
+        fprintf(stderr, "Write error: %s\n", libnet_geterror(l));
+        goto bad;
+    }
+    else
+    {
+        fprintf(stderr, "Wrote %d byte ICMP packet; check the wire.\n", c);
+    }
+}
+    libnet_destroy(l);
+    return (EXIT_SUCCESS);
+bad:
+    libnet_destroy(l);
+    return (EXIT_FAILURE);
+}
+
+
+void
+usage(char *name)
+{
+    fprintf(stderr, "usage: %s [-r] -s source_ip -d destination_ip\n ", name);
+}
+
+/* EOF */