Move libnet/ content to top of git repo

1. Moved scripts into libnet/scripts/, moved debian/ into libnet/,
and other top-level content into libnet/.
2. Moved libnet/* up to ./

1 files changed, 210 insertions, 0 deletions

diff --git a/sample/tring_tcp2.c b/sample/tring_tcp2.c
new file mode 100644
index 0000000..fcdff5b
--- /dev/null
+++ b/sample/tring_tcp2.c
@@ -0,0 +1,210 @@
+/*
+ *  libnet 1.1
+ *  Build a TCP packet to ride on token ring (autobuild)
+ *
+ *  Copyright (c) 1998 - 2001 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;
+    char *cp;
+    libnet_t *l;
+    libnet_ptag_t t;
+    char *payload;
+    u_short payload_s;
+    u_long src_ip, dst_ip;
+    u_short src_prt, dst_prt;
+    char errbuf[LIBNET_ERRBUF_SIZE];
+
+    printf("libnet 1.1 packet shaping: TCP (over token ring) [link]\n");
+
+    /*
+     *  Initialize the library.  Root priviledges are required.
+     *
+     *  Currently hard-coded for tr0.
+     */
+    l = libnet_init(
+            LIBNET_LINK,                            /* injection type */
+            "tr0",                                  /* network interface */
+            errbuf);                                /* error buffer */
+
+    if (l == NULL)
+    {
+        fprintf(stderr, "libnet_init() failed: %s", errbuf);
+        exit(EXIT_FAILURE); 
+    }
+
+    src_ip  = 0;
+    dst_ip  = 0;
+    src_prt = 0;
+    dst_prt = 0;
+    payload = NULL;
+    payload_s = 0;
+    while ((c = getopt(argc, argv, "d:s:p:")) != EOF)
+    {
+        switch (c)
+        {
+            /*
+             *  We expect the input to be of the form `ip.ip.ip.ip.port`.  We
+             *  point cp to the last dot of the IP address/port string and
+             *  then seperate them with a NULL byte.  The optarg now points to
+             *  just the IP address, and cp points to the port.
+             */
+            case 'd':
+                if (!(cp = strrchr(optarg, '.')))
+                {
+                    usage(argv[0]);
+                }
+                *cp++ = 0;
+                dst_prt = (u_short)atoi(cp);
+                if ((dst_ip = libnet_name2addr4(l, optarg, LIBNET_RESOLVE)) == -1)
+                {
+                    fprintf(stderr, "Bad destination IP address: %s\n", optarg);
+                    exit(EXIT_FAILURE);
+                }
+                break;
+            case 's':
+                if (!(cp = strrchr(optarg, '.')))
+                {
+                    usage(argv[0]);
+                }
+                *cp++ = 0;
+                src_prt = (u_short)atoi(cp);
+                if ((src_ip = libnet_name2addr4(l, optarg, LIBNET_RESOLVE)) == -1)
+                {
+                    fprintf(stderr, "Bad source IP address: %s\n", optarg);
+                    exit(EXIT_FAILURE);
+                }
+                break;
+            case 'p':
+                payload = optarg;
+                payload_s = strlen(payload);
+                break;
+            default:
+                exit(EXIT_FAILURE);
+        }
+    }
+
+    if (!src_ip || !src_prt || !dst_ip || !dst_prt)
+    {
+        usage(argv[0]);
+        exit(EXIT_FAILURE);
+    }
+
+
+    t = libnet_build_tcp(
+        src_prt,                                    /* source port */
+        dst_prt,                                    /* destination port */
+        0x01010101,                                 /* sequence number */
+        0x02020202,                                 /* acknowledgement num */
+        TH_SYN,                                     /* control flags */
+        32767,                                      /* window size */
+        0,                                          /* checksum */
+        0,                                          /* urgent pointer */
+        LIBNET_TCP_H + payload_s,                   /* TCP packet size */
+        (uint8_t *)payload,                         /* payload */
+        payload_s,                                  /* payload size */
+        l,                                          /* libnet handle */
+        0);                                         /* libnet id */
+    if (t == -1)
+    {
+        fprintf(stderr, "Can't build TCP header: %s\n", libnet_geterror(l));
+        goto bad;
+    }
+
+    t = libnet_build_ipv4(
+        LIBNET_IPV4_H + LIBNET_TCP_H + payload_s,   /* length */
+        0,                                          /* TOS */
+        242,                                        /* IP ID */
+        0,                                          /* IP Frag */
+        64,                                         /* TTL */
+        IPPROTO_TCP,                                /* protocol */
+        0,                                          /* checksum */
+        src_ip,                                     /* source IP */
+        dst_ip,                                     /* destination IP */
+        NULL,                                       /* payload */
+        0,                                          /* payload size */
+        l,                                          /* libnet handle */
+        0);                                         /* libnet id */
+    if (t == -1)
+    {
+        fprintf(stderr, "Can't build IP header: %s\n", libnet_geterror(l));
+        goto bad;
+    }
+
+    t = libnet_autobuild_token_ring(
+        LIBNET_TOKEN_RING_FRAME,
+        LIBNET_TOKEN_RING_LLC_FRAME,                /* LLC - Normal buffer */
+        tr_dst,                                     /* token ring destination */
+        LIBNET_SAP_SNAP,                            /* DSAP -> SNAP encap */
+        LIBNET_SAP_SNAP,                            /* SSAP -> SNAP encap */
+        0x03,                                       /* Unnumbered info/frame */
+        org_code,                                   /* Organization Code */
+        TOKEN_RING_TYPE_IP,                         /* protocol type */
+        l);                                         /* libnet handle */
+    if (t == -1)
+    {
+        fprintf(stderr, "Can't build token ring header: %s\n", libnet_geterror(l));
+        goto bad;
+    }
+
+    /*
+     *  Write it to the wire.
+     */
+    c = libnet_write(l);
+    if (c == -1)
+    {
+        fprintf(stderr, "Write error: %s\n", libnet_geterror(l));
+        goto bad;
+    }
+    else
+    {
+        fprintf(stderr, "Wrote %d byte TCP 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 -s source_ip.source_port -d destination_ip.destination_port"
+        " [-p payload]\n",
+        name);
+}
+
+/* EOF */