--- /dev/null
+/*
+ * Copyright (C) 2001 WIDE Project.
+ * 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.
+ * 3. Neither the name of the project 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 PROJECT 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 PROJECT 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.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+ "@(#) $Header: /tcpdump/master/tcpdump/print-lwres.c,v 1.1 2001-01-29 09:18:50 itojun Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/param.h>
+#include <sys/time.h>
+
+#include <netinet/in.h>
+
+#ifdef NOERROR
+#undef NOERROR /* Solaris sucks */
+#endif
+#ifdef NOERROR
+#undef T_UNSPEC /* SINIX does too */
+#endif
+#include "nameser.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h" /* must come after interface.h */
+
+/* BIND9 lib/lwres/include/lwres */
+typedef u_int32_t lwres_uint32_t;
+typedef u_int16_t lwres_uint16_t;
+typedef u_int8_t lwres_uint8_t;
+
+struct lwres_lwpacket {
+ lwres_uint32_t length;
+ lwres_uint16_t version;
+ lwres_uint16_t pktflags;
+ lwres_uint32_t serial;
+ lwres_uint32_t opcode;
+ lwres_uint32_t result;
+ lwres_uint32_t recvlength;
+ lwres_uint16_t authtype;
+ lwres_uint16_t authlength;
+};
+
+#define LWRES_FLAG_TRUSTNOTREQUIRED 0x00000001U
+#define LWRES_FLAG_SECUREDATA 0x00000002U
+
+/*
+ * no-op
+ */
+#define LWRES_OPCODE_NOOP 0x00000000U
+
+typedef struct {
+ /* public */
+ lwres_uint16_t datalength;
+ unsigned char *data;
+} lwres_nooprequest_t;
+
+typedef struct {
+ /* public */
+ lwres_uint16_t datalength;
+ unsigned char *data;
+} lwres_noopresponse_t;
+
+/*
+ * get addresses by name
+ */
+#define LWRES_OPCODE_GETADDRSBYNAME 0x00010001U
+
+typedef struct {
+ /* public */
+ lwres_uint32_t flags;
+ lwres_uint32_t addrtypes;
+ lwres_uint16_t namelen;
+ /* name follows */
+} lwres_gabnrequest_t;
+
+typedef struct {
+ /* public */
+ lwres_uint32_t flags;
+ lwres_uint16_t naliases;
+ lwres_uint16_t naddrs;
+ char *realname;
+ char **aliases;
+ lwres_uint16_t realnamelen;
+ lwres_uint16_t *aliaslen;
+#if 0
+ lwres_addrlist_t addrs;
+ /* if base != NULL, it will be freed when this structure is freed. */
+ void *base;
+ size_t baselen;
+#endif
+} lwres_gabnresponse_t;
+
+/*
+ * get name by address
+ */
+#define LWRES_OPCODE_GETNAMEBYADDR 0x00010002U
+typedef struct {
+ /* public */
+ lwres_uint32_t flags;
+#if 0
+ lwres_addr_t addr;
+#endif
+} lwres_gnbarequest_t;
+
+typedef struct {
+ /* public */
+ lwres_uint32_t flags;
+ lwres_uint16_t naliases;
+#if 0
+ char *realname;
+ char **aliases;
+ lwres_uint16_t realnamelen;
+ lwres_uint16_t *aliaslen;
+ /* if base != NULL, it will be freed when this structure is freed. */
+ void *base;
+ size_t baselen;
+#endif
+} lwres_gnbaresponse_t;
+
+/*
+ * get rdata by name
+ */
+#define LWRES_OPCODE_GETRDATABYNAME 0x00010003U
+
+typedef struct {
+ /* public */
+ lwres_uint32_t flags;
+ lwres_uint16_t rdclass;
+ lwres_uint16_t rdtype;
+ lwres_uint16_t namelen;
+#if 0
+ char *name;
+#endif
+} lwres_grbnrequest_t;
+
+typedef struct {
+ /* public */
+ lwres_uint32_t flags;
+ lwres_uint16_t rdclass;
+ lwres_uint16_t rdtype;
+ lwres_uint32_t ttl;
+ lwres_uint16_t nrdatas;
+ lwres_uint16_t nsigs;
+#if 0
+ char *realname;
+ lwres_uint16_t realnamelen;
+ unsigned char **rdatas;
+ lwres_uint16_t *rdatalen;
+ unsigned char **sigs;
+ lwres_uint16_t *siglen;
+ /* if base != NULL, it will be freed when this structure is freed. */
+ void *base;
+ size_t baselen;
+#endif
+} lwres_grbnresponse_t;
+
+#define LWRDATA_VALIDATED 0x00000001
+
+#define LWRES_ADDRTYPE_V4 0x00000001U /* ipv4 */
+#define LWRES_ADDRTYPE_V6 0x00000002U /* ipv6 */
+
+#define LWRES_MAX_ALIASES 16 /* max # of aliases */
+#define LWRES_MAX_ADDRS 64 /* max # of addrs */
+
+struct vstr {
+ u_int32_t v;
+ const char *s;
+};
+
+struct vstr opcode[] = {
+ { LWRES_OPCODE_NOOP, "noop", },
+ { LWRES_OPCODE_GETADDRSBYNAME, "getaddrsbyname", },
+ { LWRES_OPCODE_GETNAMEBYADDR, "getnamebyaddr", },
+ { LWRES_OPCODE_GETRDATABYNAME, "getrdatabyname", },
+ { 0, NULL, },
+};
+
+static const char *vtostr(struct vstr *, u_int32_t, const char *);
+
+static const char *
+vtostr(p, v, lastresort)
+ struct vstr *p;
+ u_int32_t v;
+ const char *lastresort;
+{
+
+ while (p->s) {
+ if (v == p->v)
+ return p->s;
+ p++;
+ }
+
+ return lastresort;
+}
+
+void
+lwres_print(register const u_char *bp, u_int length)
+{
+ const struct lwres_lwpacket *np;
+ u_int32_t v;
+ const char *s;
+#if 0
+ u_int32_t l;
+ lwres_gabnrequest_t *gabn;
+ int i;
+#endif
+
+ np = (const struct lwres_lwpacket *)bp;
+ TCHECK(np->authlength);
+
+ printf(" lwres");
+ if (vflag)
+ printf(" v%u", ntohs(np->version));
+
+ /* opcode */
+ v = (u_int32_t)ntohl(np->opcode);
+ s = vtostr(opcode, v, NULL);
+ if (s) {
+ printf(" %s", s);
+ if (vflag)
+ printf("(0x%x)", v);
+ } else
+ printf(" 0x%x", v);
+
+ /* flag bit */
+ v = ntohs(np->pktflags);
+ if (v) {
+ printf("[%s%s]",
+ (v & LWRES_FLAG_TRUSTNOTREQUIRED) ? "t" : "",
+ (v & LWRES_FLAG_SECUREDATA) ? "S" : "");
+ }
+
+ if (vflag > 1) {
+ printf(" ("); /*)*/
+ printf("serial:0x%x", (unsigned int)ntohl(np->serial));
+ printf(" result:0x%x", (unsigned int)ntohl(np->result));
+ printf(" recvlen:%u", (unsigned int)ntohl(np->recvlength));
+ printf(" authtype:0x%x", ntohs(np->authtype));
+ printf(" authlen:%u", ntohs(np->authlength));
+ /*(*/
+ printf(")");
+ }
+
+#if 0 /*not completed yet*/
+ /* per-opcode content */
+ switch (ntohl(np->opcode)) {
+ case LWRES_OPCODE_NOOP:
+ break;
+ case LWRES_OPCODE_GETADDRSBYNAME:
+ gabn = (lwres_gabnrequest_t *)(np + 1);
+ TCHECK(gabn->namelen);
+ /* XXX gabn points to packed struct */
+ s = (const char *)&gabn->namelen + sizeof(gabn->namelen);
+ l = ntohs(gabn->namelen);
+ if (s + l > (const char *)snapend)
+ goto trunc;
+
+ printf(" flags:0x%x", (unsigned int)ntohl(gabn->flags));
+ v = (u_int32_t)ntohl(gabn->addrtypes);
+ switch (v & (LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6)) {
+ case LWRES_ADDRTYPE_V4:
+ printf(" IPv4");
+ break;
+ case LWRES_ADDRTYPE_V6:
+ printf(" IPv6");
+ break;
+ case LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6:
+ printf(" IPv4/6");
+ break;
+ }
+ if (v & ~(LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6))
+ printf("[0x%x]", v);
+ printf(" ");
+ for (i = 0; i < l; i++)
+ safeputchar(s[i]);
+ break;
+ case LWRES_OPCODE_GETNAMEBYADDR:
+ break;
+ case LWRES_OPCODE_GETRDATABYNAME:
+ break;
+ default:
+ break;
+ }
+#endif
+
+ /* length mismatch */
+ if (ntohl(np->length) != length)
+ printf(" [len: %u != %u]", (unsigned int)ntohl(np->length), length);
+ return;
+
+ trunc:
+ printf("[|lwres]");
+ return;
+}
projects / tcpdump / commitdiff
