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C++ ND_TCHECK2函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中ND_TCHECK2函数的典型用法代码示例。如果您正苦于以下问题：C++ ND_TCHECK2函数的具体用法？C++ ND_TCHECK2怎么用？C++ ND_TCHECK2使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了ND_TCHECK2函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: print_neighbors2

static int
print_neighbors2(netdissect_options *ndo,
                 register const u_char *bp, register const u_char *ep,
                 register u_int len)
{
	const u_char *laddr;
	register u_char metric, thresh, flags;
	register int ncount;

	ND_PRINT((ndo, " (v %d.%d):",
	       (int)target_level & 0xff,
	       (int)(target_level >> 8) & 0xff));

	while (len > 0 && bp < ep) {
		ND_TCHECK2(bp[0], 8);
		laddr = bp;
		bp += 4;
		metric = *bp++;
		thresh = *bp++;
		flags = *bp++;
		ncount = *bp++;
		len -= 8;
		while (--ncount >= 0 && (len >= 4) && (bp + 4) <= ep) {
			ND_PRINT((ndo, " [%s -> ", ipaddr_string(ndo, laddr)));
			ND_PRINT((ndo, "%s (%d/%d", ipaddr_string(ndo, bp),
				     metric, thresh));
			if (flags & DVMRP_NF_TUNNEL)
				ND_PRINT((ndo, "/tunnel"));
			if (flags & DVMRP_NF_SRCRT)
				ND_PRINT((ndo, "/srcrt"));
			if (flags & DVMRP_NF_QUERIER)
				ND_PRINT((ndo, "/querier"));
			if (flags & DVMRP_NF_DISABLED)
				ND_PRINT((ndo, "/disabled"));
			if (flags & DVMRP_NF_DOWN)
				ND_PRINT((ndo, "/down"));
			ND_PRINT((ndo, ")]"));
			bp += 4;
			len -= 4;
		}
		if (ncount != -1) {
			ND_PRINT((ndo, " [|]"));
			return (0);
		}
	}
	return (0);
trunc:
	return (-1);
}
开发者ID:0-kaladin，项目名称:ad-away，代码行数:49，代码来源:print-dvmrp.c


示例2: ospf6_print_lsaprefix

static int
ospf6_print_lsaprefix(netdissect_options *ndo,
                      const uint8_t *tptr, u_int lsa_length)
{
	const struct lsa6_prefix *lsapp = (const struct lsa6_prefix *)tptr;
	u_int wordlen;
	struct in6_addr prefix;

	if (lsa_length < sizeof (*lsapp) - IPV6_ADDR_LEN_BYTES)
		goto trunc;
	lsa_length -= sizeof (*lsapp) - IPV6_ADDR_LEN_BYTES;
	ND_TCHECK2(*lsapp, sizeof (*lsapp) - IPV6_ADDR_LEN_BYTES);
	wordlen = (lsapp->lsa_p_len + 31) / 32;
	if (wordlen * 4 > sizeof(struct in6_addr)) {
		ND_PRINT((ndo, " bogus prefixlen /%d", lsapp->lsa_p_len));
		goto trunc;
	}
	if (lsa_length < wordlen * 4)
		goto trunc;
	lsa_length -= wordlen * 4;
	ND_TCHECK2(lsapp->lsa_p_prefix, wordlen * 4);
	memset(&prefix, 0, sizeof(prefix));
	memcpy(&prefix, lsapp->lsa_p_prefix, wordlen * 4);
	ND_PRINT((ndo, "\n\t\t%s/%d", ip6addr_string(ndo, &prefix),
		lsapp->lsa_p_len));
        if (lsapp->lsa_p_opt) {
            ND_PRINT((ndo, ", Options [%s]",
                   bittok2str(ospf6_lsa_prefix_option_values,
                              "none", lsapp->lsa_p_opt)));
        }
        ND_PRINT((ndo, ", metric %u", EXTRACT_16BITS(&lsapp->lsa_p_metric)));
	return sizeof(*lsapp) - IPV6_ADDR_LEN_BYTES + wordlen * 4;

trunc:
	return -1;
}
开发者ID:EliseuTorres，项目名称:tcpdump，代码行数:36，代码来源:print-ospf6.c


示例3: m3ua_tags_print

/*
 *     0                   1                   2                   3
 *     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |          Parameter Tag        |       Parameter Length        |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    \                                                               \
 *    /                       Parameter Value                         /
 *    \                                                               \
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 */
static void
m3ua_tags_print(netdissect_options *ndo,
                const u_char *buf, const u_int size)
{
  const u_char *p = buf;
  int align;
  uint16_t hdr_tag;
  uint16_t hdr_len;

  while (p < buf + size) {
    if (p + sizeof(struct m3ua_param_header) > buf + size)
      goto corrupt;
    ND_TCHECK2(*p, sizeof(struct m3ua_param_header));
    /* Parameter Tag */
    hdr_tag = EXTRACT_16BITS(p);
    ND_PRINT((ndo, "\n\t\t\t%s: ", tok2str(ParamName, "Unknown Parameter (0x%04x)", hdr_tag)));
    /* Parameter Length */
    hdr_len = EXTRACT_16BITS(p + 2);
    if (hdr_len < sizeof(struct m3ua_param_header))
      goto corrupt;
    /* Parameter Value */
    align = (p + hdr_len - buf) % 4;
    align = align ? 4 - align : 0;
    ND_TCHECK2(*p, hdr_len + align);
    tag_value_print(ndo, p, hdr_tag, hdr_len - sizeof(struct m3ua_param_header));
    p += hdr_len + align;
  }
  return;

corrupt:
  ND_PRINT((ndo, "%s", cstr));
  ND_TCHECK2(*buf, size);
  return;
trunc:
  ND_PRINT((ndo, "%s", tstr));
}
开发者ID:0-kaladin，项目名称:ad-away，代码行数:47，代码来源:print-m3ua.c


示例4: aoev1_print

/* cp points to the Ver/Flags octet */
static void
aoev1_print(netdissect_options *ndo,
            const u_char *cp, const u_int len)
{
	const u_char *ep = cp + len;
	uint8_t flags, command;
	void (*cmd_decoder)(netdissect_options *, const u_char *, const u_int);

	if (len < AOEV1_COMMON_HDR_LEN)
		goto invalid;
	/* Flags */
	flags = *cp & 0x0F;
	ND_PRINT((ndo, ", Flags: [%s]", bittok2str(aoev1_flag_str, "none", flags)));
	cp += 1;
	if (! ndo->ndo_vflag)
		return;
	/* Error */
	ND_TCHECK2(*cp, 1);
	if (flags & AOEV1_FLAG_E)
		ND_PRINT((ndo, "\n\tError: %s", tok2str(aoev1_errcode_str, "Invalid (%u)", *cp)));
	cp += 1;
	/* Major */
	ND_TCHECK2(*cp, 2);
	ND_PRINT((ndo, "\n\tMajor: 0x%04x", EXTRACT_16BITS(cp)));
	cp += 2;
	/* Minor */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", Minor: 0x%02x", *cp));
	cp += 1;
	/* Command */
	ND_TCHECK2(*cp, 1);
	command = *cp;
	cp += 1;
	ND_PRINT((ndo, ", Command: %s", tok2str(cmdcode_str, "Unknown (0x%02x)", command)));
	/* Tag */
	ND_TCHECK2(*cp, 4);
	ND_PRINT((ndo, ", Tag: 0x%08x", EXTRACT_32BITS(cp)));
	cp += 4;
	/* Arg */
	cmd_decoder =
		command == AOEV1_CMD_ISSUE_ATA_COMMAND        ? aoev1_issue_print :
		command == AOEV1_CMD_QUERY_CONFIG_INFORMATION ? aoev1_query_print :
		command == AOEV1_CMD_MAC_MASK_LIST            ? aoev1_mac_print :
		command == AOEV1_CMD_RESERVE_RELEASE          ? aoev1_reserve_print :
		NULL;
	if (cmd_decoder != NULL)
		cmd_decoder(ndo, cp, len - AOEV1_COMMON_HDR_LEN);
	return;

invalid:
	ND_PRINT((ndo, "%s", istr));
	ND_TCHECK2(*cp, ep - cp);
	return;
trunc:
	ND_PRINT((ndo, "%s", tstr));
}
开发者ID:jaredmcneill，项目名称:netbsd-src，代码行数:57，代码来源:print-aoe.c


示例5: loopback_message_print

static void
loopback_message_print(netdissect_options *ndo, const u_char *cp, const u_int len)
{
	const u_char *ep = cp + len;
	uint16_t function;

	if (len < 2)
		goto corrupt;
	/* function */
	ND_TCHECK2(*cp, 2);
	function = EXTRACT_LE_16BITS(cp);
	cp += 2;
	ND_PRINT((ndo, ", %s", tok2str(fcode_str, " invalid (%u)", function)));

	switch (function) {
		case LOOPBACK_REPLY:
			if (len < 4)
				goto corrupt;
			/* receipt number */
			ND_TCHECK2(*cp, 2);
			ND_PRINT((ndo, ", receipt number %u", EXTRACT_LE_16BITS(cp)));
			cp += 2;
			/* data */
			ND_PRINT((ndo, ", data (%u octets)", len - 4));
			ND_TCHECK2(*cp, len - 4);
			break;
		case LOOPBACK_FWDDATA:
			if (len < 8)
				goto corrupt;
			/* forwarding address */
			ND_TCHECK2(*cp, ETHER_ADDR_LEN);
			ND_PRINT((ndo, ", forwarding address %s", etheraddr_string(cp)));
			cp += ETHER_ADDR_LEN;
			/* data */
			ND_PRINT((ndo, ", data (%u octets)", len - 8));
			ND_TCHECK2(*cp, len - 8);
			break;
		default:
			ND_TCHECK2(*cp, len - 2);
			break;
	}
	return;

corrupt:
	ND_PRINT((ndo, "%s", cstr));
	ND_TCHECK2(*cp, ep - cp);
	return;
trunc:
	ND_PRINT((ndo, "%s", tstr));
}
开发者ID:ecbtnrt，项目名称:tcpdump，代码行数:50，代码来源:print-loopback.c


示例6: radius_print

void
radius_print(netdissect_options *ndo,
             const u_char *dat, u_int length)
{
   register const struct radius_hdr *rad;
   u_int len, auth_idx;

   ND_TCHECK2(*dat, MIN_RADIUS_LEN);
   rad = (struct radius_hdr *)dat;
   len = EXTRACT_16BITS(&rad->len);

   if (len < MIN_RADIUS_LEN)
   {
	  ND_PRINT((ndo, "%s", tstr));
	  return;
   }

   if (len > length)
	  len = length;

   if (ndo->ndo_vflag < 1) {
       ND_PRINT((ndo, "RADIUS, %s (%u), id: 0x%02x length: %u",
              tok2str(radius_command_values,"Unknown Command",rad->code),
              rad->code,
              rad->id,
              len));
       return;
   }
   else {
       ND_PRINT((ndo, "RADIUS, length: %u\n\t%s (%u), id: 0x%02x, Authenticator: ",
              len,
              tok2str(radius_command_values,"Unknown Command",rad->code),
              rad->code,
              rad->id));

       for(auth_idx=0; auth_idx < 16; auth_idx++)
            ND_PRINT((ndo, "%02x", rad->auth[auth_idx]));
   }

   if (len > MIN_RADIUS_LEN)
      radius_attrs_print(ndo, dat + MIN_RADIUS_LEN, len - MIN_RADIUS_LEN);
   return;

trunc:
   ND_PRINT((ndo, "%s", tstr));
}
开发者ID:0-kaladin，项目名称:ad-away，代码行数:46，代码来源:print-radius.c


示例7: aoev1_query_print

static void
aoev1_query_print(netdissect_options *ndo,
                  const u_char *cp, const u_int len)
{
	const u_char *ep = cp + len;
	uint16_t cslen;

	if (len < AOEV1_QUERY_ARG_LEN)
		goto invalid;
	/* Buffer Count */
	ND_TCHECK2(*cp, 2);
	ND_PRINT((ndo, "\n\tBuffer Count: %u", EXTRACT_16BITS(cp)));
	cp += 2;
	/* Firmware Version */
	ND_TCHECK2(*cp, 2);
	ND_PRINT((ndo, ", Firmware Version: %u", EXTRACT_16BITS(cp)));
	cp += 2;
	/* Sector Count */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", Sector Count: %u", *cp));
	cp += 1;
	/* AoE/CCmd */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", AoE: %u, CCmd: %s", (*cp & 0xF0) >> 4,
	          tok2str(aoev1_ccmd_str, "Unknown (0x02x)", *cp & 0x0F)));
	cp += 1;
	/* Config String Length */
	ND_TCHECK2(*cp, 2);
	cslen = EXTRACT_16BITS(cp);
	cp += 2;
	if (cslen > AOEV1_MAX_CONFSTR_LEN || AOEV1_QUERY_ARG_LEN + cslen > len)
		goto invalid;
	/* Config String */
	ND_TCHECK2(*cp, cslen);
	if (cslen) {
		ND_PRINT((ndo, "\n\tConfig String (length %u): ", cslen));
		if (fn_printn(ndo, cp, cslen, ndo->ndo_snapend))
			goto trunc;
	}
	return;

invalid:
	ND_PRINT((ndo, "%s", istr));
	ND_TCHECK2(*cp, ep - cp);
	return;
trunc:
	ND_PRINT((ndo, "%s", tstr));
}
开发者ID:jaredmcneill，项目名称:netbsd-src，代码行数:48，代码来源:print-aoe.c


示例8: of_header_body_print

/* Print a single OpenFlow message. */
static const u_char *
of_header_body_print(netdissect_options *ndo, const u_char *cp, const u_char *ep)
{
	uint8_t version, type;
	uint16_t length;
	uint32_t xid;

	if (ep < cp + OF_HEADER_LEN)
		goto invalid;
	/* version */
	ND_TCHECK2(*cp, 1);
	version = *cp;
	cp += 1;
	/* type */
	ND_TCHECK2(*cp, 1);
	type = *cp;
	cp += 1;
	/* length */
	ND_TCHECK2(*cp, 2);
	length = EXTRACT_16BITS(cp);
	cp += 2;
	/* xid */
	ND_TCHECK2(*cp, 4);
	xid = EXTRACT_32BITS(cp);
	cp += 4;
	/* Message length includes the header length and a message always includes
	 * the basic header. A message length underrun fails decoding of the rest of
	 * the current packet. At the same time, try decoding as much of the current
	 * message as possible even when it does not end within the current TCP
	 * segment. */
	if (length < OF_HEADER_LEN) {
		of_header_print(ndo, version, type, length, xid);
		goto invalid;
	}
	/* Decode known protocol versions further without printing the header (the
	 * type decoding is version-specific. */
	switch (version) {
	case OF_VER_1_0:
		return of10_header_body_print(ndo, cp, ep, type, length, xid);
	default:
		of_header_print(ndo, version, type, length, xid);
		ND_TCHECK2(*cp, length - OF_HEADER_LEN);
		return cp + length - OF_HEADER_LEN; /* done with current message */
	}

invalid: /* fail current packet */
	ND_PRINT((ndo, "%s", istr));
	ND_TCHECK2(*cp, ep - cp);
	return ep;
trunc:
	ND_PRINT((ndo, "%s", tstr));
	return ep;
}
开发者ID:Distrotech，项目名称:tcpdump，代码行数:54，代码来源:print-openflow.c


示例9: parse_pre_op_attr

/*
 * Pre operation attributes. Print only if vflag > 1.
 */
static const uint32_t *
parse_pre_op_attr(netdissect_options *ndo,
                  const uint32_t *dp, int verbose)
{
	ND_TCHECK(dp[0]);
	if (!EXTRACT_32BITS(&dp[0]))
		return (dp + 1);
	dp++;
	ND_TCHECK2(*dp, 24);
	if (verbose > 1) {
		return parse_wcc_attr(ndo, dp);
	} else {
		/* If not verbose enough, just skip over wcc_attr */
		return (dp + 6);
	}
trunc:
	return (NULL);
}
开发者ID:Longinus00，项目名称:tcpdump，代码行数:21，代码来源:print-nfs.c


示例10: hbhopt_print

int
hbhopt_print(netdissect_options *ndo, register const u_char *bp)
{
    const struct ip6_hbh *dp = (const struct ip6_hbh *)bp;
    int hbhlen = 0;

    ND_TCHECK(dp->ip6h_len);
    hbhlen = (int)((dp->ip6h_len + 1) << 3);
    ND_TCHECK2(*dp, hbhlen);
    ND_PRINT((ndo, "HBH "));
    if (ndo->ndo_vflag)
	ip6_opt_print(ndo, (const u_char *)dp + sizeof(*dp), hbhlen - sizeof(*dp));

    return(hbhlen);

  trunc:
    ND_PRINT((ndo, "[|HBH]"));
    return(-1);
}
开发者ID:RTEMS，项目名称:rtems-libbsd，代码行数:19，代码来源:print-ip6opts.c


示例11: ospf6_decode_at

/* RFC6506 Section 4.1 */
static int
ospf6_decode_at(netdissect_options *ndo,
                const u_char *cp, const u_int len)
{
	uint16_t authdatalen;

	if (len == 0)
		return 0;
	if (len < OSPF6_AT_HDRLEN)
		goto trunc;
	/* Authentication Type */
	ND_TCHECK2(*cp, 2);
	ND_PRINT((ndo, "\n\tAuthentication Type %s", tok2str(ospf6_auth_type_str, "unknown (0x%04x)", EXTRACT_16BITS(cp))));
	cp += 2;
	/* Auth Data Len */
	ND_TCHECK2(*cp, 2);
	authdatalen = EXTRACT_16BITS(cp);
	ND_PRINT((ndo, ", Length %u", authdatalen));
	if (authdatalen < OSPF6_AT_HDRLEN || authdatalen > len)
		goto trunc;
	cp += 2;
	/* Reserved */
	ND_TCHECK2(*cp, 2);
	cp += 2;
	/* Security Association ID */
	ND_TCHECK2(*cp, 2);
	ND_PRINT((ndo, ", SAID %u", EXTRACT_16BITS(cp)));
	cp += 2;
	/* Cryptographic Sequence Number (High-Order 32 Bits) */
	ND_TCHECK2(*cp, 4);
	ND_PRINT((ndo, ", CSN 0x%08x", EXTRACT_32BITS(cp)));
	cp += 4;
	/* Cryptographic Sequence Number (Low-Order 32 Bits) */
	ND_TCHECK2(*cp, 4);
	ND_PRINT((ndo, ":%08x", EXTRACT_32BITS(cp)));
	cp += 4;
	/* Authentication Data */
	ND_TCHECK2(*cp, authdatalen - OSPF6_AT_HDRLEN);
	if (ndo->ndo_vflag > 1)
		print_unknown_data(ndo,cp, "\n\tAuthentication Data ", authdatalen - OSPF6_AT_HDRLEN);
	return 0;

trunc:
	return 1;
}
开发者ID:EliseuTorres，项目名称:tcpdump，代码行数:46，代码来源:print-ospf6.c


示例12: zmtp1_print_intermediate_part

static const u_char *
zmtp1_print_intermediate_part(netdissect_options *ndo, const u_char *cp, const u_int len) {
	u_int frame_offset;
	uint64_t remaining_len;

	ND_TCHECK2(*cp, 2);
	frame_offset = EXTRACT_16BITS(cp);
	ND_PRINT((ndo, "\n\t frame offset 0x%04x", frame_offset));
	cp += 2;
	remaining_len = ndo->ndo_snapend - cp; /* without the frame length */

	if (frame_offset == 0xFFFF)
		frame_offset = len - 2; /* always within the declared length */
	else if (2 + frame_offset > len) {
		ND_PRINT((ndo, " (exceeds datagram declared length)"));
		goto trunc;
	}

	/* offset within declared length of the datagram */
	if (frame_offset) {
		ND_PRINT((ndo, "\n\t frame intermediate part, %u bytes", frame_offset));
		if (frame_offset > remaining_len)
			ND_PRINT((ndo, " (%"PRIu64" captured)", remaining_len));
		if (ndo->ndo_vflag) {
			uint64_t len_printed = min(frame_offset, remaining_len);

			if (ndo->ndo_vflag == 1)
				len_printed = min(VBYTES, len_printed);
			if (len_printed > 1) {
				ND_PRINT((ndo, ", first %"PRIu64" byte(s):", len_printed));
				hex_and_ascii_print(ndo, "\n\t ", cp, len_printed);
				ND_PRINT((ndo, "\n"));
			}
		}
	}
	return cp + frame_offset;

trunc:
	ND_PRINT((ndo, "%s", tstr));
	return cp + len;
}
开发者ID:GumpChan，项目名称:tcpdump，代码行数:41，代码来源:print-zeromq.c


示例13: dstopt_print

int
dstopt_print(netdissect_options *ndo, register const u_char *bp)
{
    const struct ip6_dest *dp = (const struct ip6_dest *)bp;
    int dstoptlen = 0;

    ND_TCHECK(dp->ip6d_len);
    dstoptlen = (int)((dp->ip6d_len + 1) << 3);
    ND_TCHECK2(*dp, dstoptlen);
    ND_PRINT((ndo, "DSTOPT "));
    if (ndo->ndo_vflag) {
	ip6_opt_print(ndo, (const u_char *)dp + sizeof(*dp),
	    dstoptlen - sizeof(*dp));
    }

    return(dstoptlen);

  trunc:
    ND_PRINT((ndo, "[|DSTOPT]"));
    return(-1);
}
开发者ID:RTEMS，项目名称:rtems-libbsd，代码行数:21，代码来源:print-ip6opts.c


示例14: m3ua_print

/*
 *     0                   1                   2                   3
 *     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |    Version    |   Reserved    | Message Class | Message Type  |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |                        Message Length                         |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    \                                                               \
 *    /                                                               /
 */
void
m3ua_print(netdissect_options *ndo,
           const u_char *buf, const u_int size)
{
  const struct m3ua_common_header *hdr = (const struct m3ua_common_header *) buf;
  const struct tok *dict;

  /* size includes the header */
  if (size < sizeof(struct m3ua_common_header))
    goto corrupt;
  ND_TCHECK(*hdr);
  if (hdr->v != M3UA_REL_1_0)
    return;

  dict =
    hdr->msg_class == M3UA_MSGC_MGMT     ? MgmtMessages :
    hdr->msg_class == M3UA_MSGC_TRANSFER ? TransferMessages :
    hdr->msg_class == M3UA_MSGC_SSNM     ? SS7Messages :
    hdr->msg_class == M3UA_MSGC_ASPSM    ? ASPStateMessages :
    hdr->msg_class == M3UA_MSGC_ASPTM    ? ASPTrafficMessages :
    hdr->msg_class == M3UA_MSGC_RKM      ? RoutingKeyMgmtMessages :
    NULL;

  ND_PRINT((ndo, "\n\t\t%s", tok2str(MessageClasses, "Unknown message class %i", hdr->msg_class)));
  if (dict != NULL)
    ND_PRINT((ndo, " %s Message", tok2str(dict, "Unknown (0x%02x)", hdr->msg_type)));

  if (size != EXTRACT_32BITS(&hdr->len))
    ND_PRINT((ndo, "\n\t\t\[email protected]@@@@@ Corrupted length %u of message @@@@@@", EXTRACT_32BITS(&hdr->len)));
  else
    m3ua_tags_print(ndo, buf + sizeof(struct m3ua_common_header), EXTRACT_32BITS(&hdr->len) - sizeof(struct m3ua_common_header));
  return;

corrupt:
  ND_PRINT((ndo, "%s", cstr));
  ND_TCHECK2(*buf, size);
  return;
trunc:
  ND_PRINT((ndo, "%s", tstr));
}
开发者ID:0-kaladin，项目名称:ad-away，代码行数:51，代码来源:print-m3ua.c


示例15: lwres_printaddr

static int
lwres_printaddr(netdissect_options *ndo,
                lwres_addr_t *ap)
{
	uint16_t l;
	const char *p;
	int i;

	ND_TCHECK(ap->length);
	l = EXTRACT_16BITS(&ap->length);
	/* XXX ap points to packed struct */
	p = (const char *)&ap->length + sizeof(ap->length);
	ND_TCHECK2(*p, l);

	switch (EXTRACT_32BITS(&ap->family)) {
	case 1:	/* IPv4 */
		if (l < 4)
			return -1;
		ND_PRINT((ndo, " %s", ipaddr_string(ndo, p)));
		p += sizeof(struct in_addr);
		break;
#ifdef INET6
	case 2:	/* IPv6 */
		if (l < 16)
			return -1;
		ND_PRINT((ndo, " %s", ip6addr_string(ndo, p)));
		p += sizeof(struct in6_addr);
		break;
#endif
	default:
		ND_PRINT((ndo, " %u/", EXTRACT_32BITS(&ap->family)));
		for (i = 0; i < l; i++)
			ND_PRINT((ndo, "%02x", *p++));
	}

	return p - (const char *)ap;

  trunc:
	return -1;
}
开发者ID:Stichting-MINIX-Research-Foundation，项目名称:minix，代码行数:40，代码来源:print-lwres.c


示例16: parsefn

/*
 * Print out a file name and return pointer to 32-bit word past it.
 * If packet was truncated, return 0.
 */
static const uint32_t *
parsefn(netdissect_options *ndo,
        register const uint32_t *dp)
{
	register uint32_t len;
	register const u_char *cp;

	/* Bail if we don't have the string length */
	ND_TCHECK(*dp);

	/* Fetch string length; convert to host order */
	len = *dp++;
	NTOHL(len);

#ifndef CHERI_TCPDUMP_VULNERABILITY
	ND_TCHECK2(*dp, ((len + 3) & ~3));
#endif

	cp = (u_char *)dp;
	/* Update 32-bit pointer (NFS filenames padded to 32-bit boundaries) */
	dp += ((len + 3) & ~3) / sizeof(*dp);
	ND_PRINT((ndo, "\""));
#ifdef CHERI_TCPDUMP_VULNERABILITY
	(void) fn_printn(ndo, cp, len, NULL);
#else
	if (fn_printn(ndo, cp, len, ndo->ndo_snapend)) {
		ND_PRINT((ndo, "\""));
		goto trunc;
	}
#endif
	ND_PRINT((ndo, "\""));

	return (dp);
trunc:
	return NULL;
}
开发者ID:RichardsonAlex，项目名称:cheribsd，代码行数:40，代码来源:print-nfs.c


示例17: vqp_print

void
vqp_print(netdissect_options *ndo, register const u_char *pptr, register u_int len)
{
    const struct vqp_common_header_t *vqp_common_header;
    const struct vqp_obj_tlv_t *vqp_obj_tlv;

    const u_char *tptr;
    uint16_t vqp_obj_len;
    uint32_t vqp_obj_type;
    u_int tlen;
    uint8_t nitems;

    tptr=pptr;
    tlen = len;
    vqp_common_header = (const struct vqp_common_header_t *)pptr;
    ND_TCHECK(*vqp_common_header);
    if (sizeof(struct vqp_common_header_t) > tlen)
        goto trunc;

    /*
     * Sanity checking of the header.
     */
    if (VQP_EXTRACT_VERSION(vqp_common_header->version) != VQP_VERSION) {
	ND_PRINT((ndo, "VQP version %u packet not supported",
               VQP_EXTRACT_VERSION(vqp_common_header->version)));
	return;
    }

    /* in non-verbose mode just lets print the basic Message Type */
    if (ndo->ndo_vflag < 1) {
        ND_PRINT((ndo, "VQPv%u %s Message, error-code %s (%u), length %u",
               VQP_EXTRACT_VERSION(vqp_common_header->version),
               tok2str(vqp_msg_type_values, "unknown (%u)",vqp_common_header->msg_type),
               tok2str(vqp_error_code_values, "unknown (%u)",vqp_common_header->error_code),
	       vqp_common_header->error_code,
               len));
        return;
    }

    /* ok they seem to want to know everything - lets fully decode it */
    nitems = vqp_common_header->nitems;
    ND_PRINT((ndo, "\n\tVQPv%u, %s Message, error-code %s (%u), seq 0x%08x, items %u, length %u",
           VQP_EXTRACT_VERSION(vqp_common_header->version),
	   tok2str(vqp_msg_type_values, "unknown (%u)",vqp_common_header->msg_type),
	   tok2str(vqp_error_code_values, "unknown (%u)",vqp_common_header->error_code),
	   vqp_common_header->error_code,
           EXTRACT_32BITS(&vqp_common_header->sequence),
           nitems,
           len));

    /* skip VQP Common header */
    tptr+=sizeof(const struct vqp_common_header_t);
    tlen-=sizeof(const struct vqp_common_header_t);

    while (nitems > 0 && tlen > 0) {

        vqp_obj_tlv = (const struct vqp_obj_tlv_t *)tptr;
        ND_TCHECK(*vqp_obj_tlv);
        if (sizeof(struct vqp_obj_tlv_t) > tlen)
            goto trunc;
        vqp_obj_type = EXTRACT_32BITS(vqp_obj_tlv->obj_type);
        vqp_obj_len = EXTRACT_16BITS(vqp_obj_tlv->obj_length);
        tptr+=sizeof(struct vqp_obj_tlv_t);
        tlen-=sizeof(struct vqp_obj_tlv_t);

        ND_PRINT((ndo, "\n\t  %s Object (0x%08x), length %u, value: ",
               tok2str(vqp_obj_values, "Unknown", vqp_obj_type),
               vqp_obj_type, vqp_obj_len));

        /* basic sanity check */
        if (vqp_obj_type == 0 || vqp_obj_len ==0) {
            return;
        }

        /* did we capture enough for fully decoding the object ? */
        ND_TCHECK2(*tptr, vqp_obj_len);
        if (vqp_obj_len > tlen)
            goto trunc;

        switch(vqp_obj_type) {
	case VQP_OBJ_IP_ADDRESS:
            if (vqp_obj_len != 4)
                goto trunc;
            ND_PRINT((ndo, "%s (0x%08x)", ipaddr_string(ndo, tptr), EXTRACT_32BITS(tptr)));
            break;
            /* those objects have similar semantics - fall through */
        case VQP_OBJ_PORT_NAME:
	case VQP_OBJ_VLAN_NAME:
	case VQP_OBJ_VTP_DOMAIN:
	case VQP_OBJ_ETHERNET_PKT:
            safeputs(ndo, tptr, vqp_obj_len);
            break;
            /* those objects have similar semantics - fall through */
	case VQP_OBJ_MAC_ADDRESS:
	case VQP_OBJ_MAC_NULL:
            if (vqp_obj_len != ETHER_ADDR_LEN)
                goto trunc;
	      ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr)));
              break;
        default:
//.........这里部分代码省略.........
开发者ID:RTEMS，项目名称:rtems-libbsd，代码行数:101，代码来源:print-vqp.c


示例18: eigrp_print

void
eigrp_print(netdissect_options *ndo, register const u_char *pptr, register u_int len) {

    const struct eigrp_common_header *eigrp_com_header;
    const struct eigrp_tlv_header *eigrp_tlv_header;
    const u_char *tptr,*tlv_tptr;
    u_int tlen,eigrp_tlv_len,eigrp_tlv_type,tlv_tlen, byte_length, bit_length;
    uint8_t prefix[4];

    union {
        const struct eigrp_tlv_general_parm_t *eigrp_tlv_general_parm;
        const struct eigrp_tlv_sw_version_t *eigrp_tlv_sw_version;
        const struct eigrp_tlv_ip_int_t *eigrp_tlv_ip_int;
        const struct eigrp_tlv_ip_ext_t *eigrp_tlv_ip_ext;
        const struct eigrp_tlv_at_cable_setup_t *eigrp_tlv_at_cable_setup;
        const struct eigrp_tlv_at_int_t *eigrp_tlv_at_int;
        const struct eigrp_tlv_at_ext_t *eigrp_tlv_at_ext;
    } tlv_ptr;

    tptr=pptr;
    eigrp_com_header = (const struct eigrp_common_header *)pptr;
    ND_TCHECK(*eigrp_com_header);

    /*
     * Sanity checking of the header.
     */
    if (eigrp_com_header->version != EIGRP_VERSION) {
	ND_PRINT((ndo, "EIGRP version %u packet not supported",eigrp_com_header->version));
	return;
    }

    /* in non-verbose mode just lets print the basic Message Type*/
    if (ndo->ndo_vflag < 1) {
        ND_PRINT((ndo, "EIGRP %s, length: %u",
               tok2str(eigrp_opcode_values, "unknown (%u)",eigrp_com_header->opcode),
               len));
        return;
    }

    /* ok they seem to want to know everything - lets fully decode it */

    tlen=len-sizeof(struct eigrp_common_header);

    /* FIXME print other header info */
    ND_PRINT((ndo, "\n\tEIGRP v%u, opcode: %s (%u), chksum: 0x%04x, Flags: [%s]\n\tseq: 0x%08x, ack: 0x%08x, AS: %u, length: %u",
           eigrp_com_header->version,
           tok2str(eigrp_opcode_values, "unknown, type: %u",eigrp_com_header->opcode),
           eigrp_com_header->opcode,
           EXTRACT_16BITS(&eigrp_com_header->checksum),
           tok2str(eigrp_common_header_flag_values,
                   "none",
                   EXTRACT_32BITS(&eigrp_com_header->flags)),
           EXTRACT_32BITS(&eigrp_com_header->seq),
           EXTRACT_32BITS(&eigrp_com_header->ack),
           EXTRACT_32BITS(&eigrp_com_header->asn),
           tlen));

    tptr+=sizeof(const struct eigrp_common_header);

    while(tlen>0) {
        /* did we capture enough for fully decoding the object header ? */
        ND_TCHECK2(*tptr, sizeof(struct eigrp_tlv_header));

        eigrp_tlv_header = (const struct eigrp_tlv_header *)tptr;
        eigrp_tlv_len=EXTRACT_16BITS(&eigrp_tlv_header->length);
        eigrp_tlv_type=EXTRACT_16BITS(&eigrp_tlv_header->type);


        if (eigrp_tlv_len < sizeof(struct eigrp_tlv_header) ||
            eigrp_tlv_len > tlen) {
            print_unknown_data(ndo,tptr+sizeof(struct eigrp_tlv_header),"\n\t    ",tlen);
            return;
        }

        ND_PRINT((ndo, "\n\t  %s TLV (0x%04x), length: %u",
               tok2str(eigrp_tlv_values,
                       "Unknown",
                       eigrp_tlv_type),
               eigrp_tlv_type,
               eigrp_tlv_len));

        tlv_tptr=tptr+sizeof(struct eigrp_tlv_header);
        tlv_tlen=eigrp_tlv_len-sizeof(struct eigrp_tlv_header);

        /* did we capture enough for fully decoding the object ? */
        ND_TCHECK2(*tptr, eigrp_tlv_len);

        switch(eigrp_tlv_type) {

        case EIGRP_TLV_GENERAL_PARM:
            tlv_ptr.eigrp_tlv_general_parm = (const struct eigrp_tlv_general_parm_t *)tlv_tptr;

            ND_PRINT((ndo, "\n\t    holdtime: %us, k1 %u, k2 %u, k3 %u, k4 %u, k5 %u",
                   EXTRACT_16BITS(tlv_ptr.eigrp_tlv_general_parm->holdtime),
                   tlv_ptr.eigrp_tlv_general_parm->k1,
                   tlv_ptr.eigrp_tlv_general_parm->k2,
                   tlv_ptr.eigrp_tlv_general_parm->k3,
                   tlv_ptr.eigrp_tlv_general_parm->k4,
                   tlv_ptr.eigrp_tlv_general_parm->k5));
            break;
//.........这里部分代码省略.........
开发者ID:Danielweber7624，项目名称:tcpdump，代码行数:101，代码来源:print-eigrp.c


示例19: cdp_print

void
cdp_print(netdissect_options *ndo,
          const u_char *pptr, u_int length, u_int caplen)
{
	int type, len, i, j;
	const u_char *tptr;

	if (caplen < CDP_HEADER_LEN) {
		ND_PRINT((ndo, "%s", tstr));
		return;
	}

	tptr = pptr; /* temporary pointer */

	ND_TCHECK2(*tptr, CDP_HEADER_LEN);
	ND_PRINT((ndo, "CDPv%u, ttl: %us", *(tptr + CDP_HEADER_VERSION_OFFSET),
					   *(tptr + CDP_HEADER_TTL_OFFSET)));
	if (ndo->ndo_vflag)
		ND_PRINT((ndo, ", checksum: 0x%04x (unverified), length %u", EXTRACT_16BITS(tptr+CDP_HEADER_CHECKSUM_OFFSET), length));
	tptr += CDP_HEADER_LEN;

	while (tptr < (pptr+length)) {
		ND_TCHECK2(*tptr, CDP_TLV_HEADER_LEN); /* read out Type and Length */
		type = EXTRACT_16BITS(tptr+CDP_TLV_TYPE_OFFSET);
		len  = EXTRACT_16BITS(tptr+CDP_TLV_LEN_OFFSET); /* object length includes the 4 bytes header length */
		if (len < CDP_TLV_HEADER_LEN) {
		    if (ndo->ndo_vflag)
			ND_PRINT((ndo, "\n\t%s (0x%02x), TLV length: %u byte%s (too short)",
			       tok2str(cdp_tlv_values,"unknown field type", type),
			       type,
			       len,
			       PLURAL_SUFFIX(len))); /* plural */
		    else
			ND_PRINT((ndo, ", %s TLV length %u too short",
			       tok2str(cdp_tlv_values,"unknown field type", type),
			       len));
		    break;
		}
		tptr += CDP_TLV_HEADER_LEN;
		len -= CDP_TLV_HEADER_LEN;

		ND_TCHECK2(*tptr, len);

		if (ndo->ndo_vflag || type == 1) { /* in non-verbose mode just print Device-ID */

		    if (ndo->ndo_vflag)
			ND_PRINT((ndo, "\n\t%s (0x%02x), value length: %u byte%s: ",
			       tok2str(cdp_tlv_values,"unknown field type", type),
			       type,
			       len,
			       PLURAL_SUFFIX(len))); /* plural */

		    switch (type) {

		    case 0x01: /* Device-ID */
			if (!ndo->ndo_vflag)
			    ND_PRINT((ndo, ", Device-ID "));
			ND_PRINT((ndo, "'"));
			(void)fn_printn(ndo, tptr, len, NULL);
			ND_PRINT((ndo, "'"));
			break;
		    case 0x02: /* Address */
			if (cdp_print_addr(ndo, tptr, len) < 0)
			    goto trunc;
			break;
		    case 0x03: /* Port-ID */
			ND_PRINT((ndo, "'"));
			(void)fn_printn(ndo, tptr, len, NULL);
			ND_PRINT((ndo, "'"));
			break;
		    case 0x04: /* Capabilities */
			if (len < 4)
			    goto trunc;
			ND_PRINT((ndo, "(0x%08x): %s",
			       EXTRACT_32BITS(tptr),
			       bittok2str(cdp_capability_values, "none", EXTRACT_32BITS(tptr))));
			break;
		    case 0x05: /* Version */
			ND_PRINT((ndo, "\n\t  "));
			for (i=0;i<len;i++) {
			    j = *(tptr+i);
			    if (j == '\n') /* lets rework the version string to
					      get a nice indentation */
				ND_PRINT((ndo, "\n\t  "));
			    else
				fn_print_char(ndo, j);
			}
			break;
		    case 0x06: /* Platform */
			ND_PRINT((ndo, "'"));
			(void)fn_printn(ndo, tptr, len, NULL);
			ND_PRINT((ndo, "'"));
			break;
		    case 0x07: /* Prefixes */
			if (cdp_print_prefixes(ndo, tptr, len) < 0)
			    goto trunc;
			break;
		    case 0x08: /* Protocol Hello Option - not documented */
			break;
		    case 0x09: /* VTP Mgmt Domain  - CDPv2 */
//.........这里部分代码省略.........
开发者ID:RTEMS，项目名称:rtems-libbsd，代码行数:101，代码来源:print-cdp.c


示例20: cdp_print_addr

static int
cdp_print_addr(netdissect_options *ndo,
	       const u_char * p, int l)
{
	int pt, pl, al, num;
	const u_char *endp = p + l;
	static const u_char prot_ipv6[] = {
		0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00, 0x86, 0xdd
	};

	ND_TCHECK2(*p, 4);
	if (p + 4 > endp)
		goto trunc;
	num = EXTRACT_32BITS(p);
	p += 4;

	while (p < endp && num >= 0) {
		ND_TCHECK2(*p, 2);
		if (p + 2 > endp)
			goto trunc;
		pt = p[0];		/* type of "protocol" field */
		pl = p[1];		/* length of "protocol" field */
		p += 2;

		ND_TCHECK2(p[pl], 2);
		if (p + pl + 2 > endp)
			goto trunc;
		al = EXTRACT_16BITS(&p[pl]);	/* address length */

		if (pt == PT_NLPID && pl == 1 && *p == NLPID_IP && al == 4) {
			/*
			 * IPv4: protocol type = NLPID, protocol length = 1
			 * (1-byte NLPID), protocol = 0xcc (NLPID for IPv4),
			 * address length = 4
			 */
			p += 3;

			ND_TCHECK2(*p, 4);
			if (p + 4 > endp)
				goto trunc;
			ND_PRINT((ndo, "IPv4 (%u) %s", num, ipaddr_string(ndo, p)));
			p += 4;
		}
		else if (pt == PT_IEEE_802_2 && pl == 8 &&
		    memcmp(p, prot_ipv6, 8) == 0 && al == 16) {
			/*
			 * IPv6: protocol type = IEEE 802.2 header,
			 * protocol length = 8 (size of LLC+SNAP header),
			 * protocol = LLC+SNAP header with the IPv6
			 * Ethertype, address length = 16
			 */
			p += 10;
			ND_TCHECK2(*p, al);
			if (p + al > endp)
				goto trunc;

			ND_PRINT((ndo, "IPv6 (%u) %s", num, ip6addr_string(ndo, p)));
			p += al;
		}
		else {
			/*
			 * Generic case: just print raw data
			 */
			ND_TCHECK2(*p, pl);
			if (p + pl > endp)
				goto trunc;
			ND_PRINT((ndo, "pt=0x%02x, pl=%d, pb=", *(p - 2), pl));
			while (pl-- > 0)
				ND_PRINT((ndo, " %02x", *p++));
			ND_TCHECK2(*p, 2);
			if (p + 2 > endp)
				goto trunc;
			al = (*p << 8) + *(p + 1);
			ND_PRINT((ndo, ", al=%d, a=", al));
			p += 2;
			ND_TCHECK2(*p, al);
			if (p + al > endp)
				goto trunc;
			while (al-- > 0)
				ND_PRINT((ndo, " %02x", *p++));
		}
		num--;
		if (num)
			ND_PRINT((ndo, " "));
	}

	return 0;

trunc:
	return -1;
}
开发者ID:RTEMS，项目名称:rtems-libbsd，代码行数:91，代码来源:print-cdp.c



注：本文中的ND_TCHECK2函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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