first draft

2022-04-13 18:01:39 +08:00
commit 906782e134
111 changed files with 15383 additions and 0 deletions
--- a/display_ipopt.c
+++ b/display_ipopt.c
@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Mike Muuss.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the University of
+ *      California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "hping2.h"
+#include "globals.h"
+
+/* ripped from ping */
+
+void display_ipopt(char* buf)
+{
+int i,j;
+unsigned long l;
+static int old_rrlen;
+static char old_rr[MAX_IPOPTLEN];
+unsigned char* cp;
+int hlen;
+struct myiphdr *ip;
+struct in_addr in;
+
+
+	ip = (struct myiphdr *)buf;
+	hlen = ip->ihl * 4;
+	
+	cp = (u_char *)buf + sizeof(struct myiphdr);
+
+	for (; hlen > (int)sizeof(struct myiphdr); --hlen, ++cp)
+		switch (*cp) {
+		case IPOPT_EOL:
+			hlen = 0;
+			break;
+		case IPOPT_LSRR:
+			(void)printf("LSRR: ");
+			hlen -= 2;
+			j = *++cp;
+			++cp;
+			if (j > IPOPT_MINOFF)
+				for (;;) {
+					l = *++cp;
+					l = (l<<8) + *++cp;
+					l = (l<<8) + *++cp;
+					l = (l<<8) + *++cp;
+				in.s_addr=htonl(l);
+				printf("\t%s",inet_ntoa(in));
+				hlen -= 4;
+				j -= 4;
+				if (j <= IPOPT_MINOFF)
+					break;
+				(void)putchar('\n');
+			}
+			break;
+		case IPOPT_RR:
+			j = *++cp;		/* get length */
+			i = *++cp;		/* and pointer */
+			hlen -= 2;
+			if (i > j)
+				i = j;
+			i -= IPOPT_MINOFF;
+			if (i <= 0)
+				continue;
+			if (i == old_rrlen
+			    && cp == (u_char *)buf + sizeof(struct myiphdr) + 2
+			    && !memcmp((char *)cp, old_rr, i)) {
+				(void)printf("\t(same route)\n");
+				i = ((i + 3) / 4) * 4;
+				hlen -= i;
+				cp += i;
+				break;
+			}
+			old_rrlen = i;
+			memcpy(old_rr, cp, i);
+			(void)printf("RR: ");
+			for (;;) {
+				l = *++cp;
+				l = (l<<8) + *++cp;
+				l = (l<<8) + *++cp;
+				l = (l<<8) + *++cp;
+				in.s_addr=htonl(l);
+				printf("\t%s",inet_ntoa(in));
+				hlen -= 4;
+				i -= 4;
+				if (i <= 0)
+					break;
+				(void)putchar('\n');
+			}
+			putchar('\n');
+			
+			break;
+		case IPOPT_NOP:
+			(void)printf("NOP\n");
+			break;
+		default:
+			(void)printf("unknown option %x\n", *cp);
+			break;
+		}
+
+}