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authordelphij <delphij@FreeBSD.org>2015-01-07 19:55:18 +0000
committerdelphij <delphij@FreeBSD.org>2015-01-07 19:55:18 +0000
commitf49c5d523af9076a4a59e8dd664f9a897108432e (patch)
treee268839e08c106e178b33bd461d8d0a9c6fb5ad9 /contrib/tcpdump/print-udld.c
parentc371846049d370ab78d943e60e789cdffe0aad3d (diff)
parent08263d19579d35a7a65e0c8bcb768504ce76d04e (diff)
downloadFreeBSD-src-f49c5d523af9076a4a59e8dd664f9a897108432e.zip
FreeBSD-src-f49c5d523af9076a4a59e8dd664f9a897108432e.tar.gz
MFV r276761: tcpdump 4.6.2.
MFC after: 1 month
Diffstat (limited to 'contrib/tcpdump/print-udld.c')
-rw-r--r--contrib/tcpdump/print-udld.c74
1 files changed, 34 insertions, 40 deletions
diff --git a/contrib/tcpdump/print-udld.c b/contrib/tcpdump/print-udld.c
index a5488dd..15e2bf6 100644
--- a/contrib/tcpdump/print-udld.c
+++ b/contrib/tcpdump/print-udld.c
@@ -12,25 +12,21 @@
* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
- * UNIDIRECTIONAL LINK DETECTION (UDLD) as per
+ * UNIDIRECTIONAL LINK DETECTION (UDLD) as per
* http://www.ietf.org/internet-drafts/draft-foschiano-udld-02.txt
*
* Original code by Carles Kishimoto <carles.kishimoto@gmail.com>
*/
+#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tcpdump-stdinc.h>
-#include <stdio.h>
-#include <string.h>
-
#include "interface.h"
-#include "addrtoname.h"
-#include "extract.h"
-#include "nlpid.h"
+#include "extract.h"
#define UDLD_HEADER_LEN 4
#define UDLD_DEVICE_ID_TLV 0x0001
@@ -41,7 +37,7 @@
#define UDLD_DEVICE_NAME_TLV 0x0006
#define UDLD_SEQ_NUMBER_TLV 0x0007
-static struct tok udld_tlv_values[] = {
+static const struct tok udld_tlv_values[] = {
{ UDLD_DEVICE_ID_TLV, "Device-ID TLV"},
{ UDLD_PORT_ID_TLV, "Port-ID TLV"},
{ UDLD_ECHO_TLV, "Echo TLV"},
@@ -52,7 +48,7 @@ static struct tok udld_tlv_values[] = {
{ 0, NULL}
};
-static struct tok udld_code_values[] = {
+static const struct tok udld_code_values[] = {
{ 0x00, "Reserved"},
{ 0x01, "Probe message"},
{ 0x02, "Echo message"},
@@ -60,7 +56,7 @@ static struct tok udld_code_values[] = {
{ 0, NULL}
};
-static struct tok udld_flags_values[] = {
+static const struct tok udld_flags_values[] = {
{ 0x00, "RT"},
{ 0x01, "RSY"},
{ 0, NULL}
@@ -68,22 +64,22 @@ static struct tok udld_flags_values[] = {
/*
*
- * 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
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | Ver | Opcode | Flags | Checksum |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | List of TLVs (variable length list) |
- * | ... |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * 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
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Ver | Opcode | Flags | Checksum |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | List of TLVs (variable length list) |
+ * | ... |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
*/
-#define UDLD_EXTRACT_VERSION(x) (((x)&0xe0)>>5)
-#define UDLD_EXTRACT_OPCODE(x) ((x)&0x1f)
+#define UDLD_EXTRACT_VERSION(x) (((x)&0xe0)>>5)
+#define UDLD_EXTRACT_OPCODE(x) ((x)&0x1f)
void
-udld_print (const u_char *pptr, u_int length)
+udld_print (netdissect_options *ndo, const u_char *pptr, u_int length)
{
int code, type, len;
const u_char *tptr;
@@ -91,39 +87,37 @@ udld_print (const u_char *pptr, u_int length)
if (length < UDLD_HEADER_LEN)
goto trunc;
- tptr = pptr;
+ tptr = pptr;
- if (!TTEST2(*tptr, UDLD_HEADER_LEN))
- goto trunc;
+ ND_TCHECK2(*tptr, UDLD_HEADER_LEN);
code = UDLD_EXTRACT_OPCODE(*tptr);
- printf("UDLDv%u, Code %s (%x), Flags [%s] (0x%02x), length %u",
+ ND_PRINT((ndo, "UDLDv%u, Code %s (%x), Flags [%s] (0x%02x), length %u",
UDLD_EXTRACT_VERSION(*tptr),
tok2str(udld_code_values, "Reserved", code),
code,
bittok2str(udld_flags_values, "none", *(tptr+1)),
*(tptr+1),
- length);
+ length));
/*
* In non-verbose mode, just print version and opcode type
*/
- if (vflag < 1) {
+ if (ndo->ndo_vflag < 1) {
return;
}
- printf("\n\tChecksum 0x%04x (unverified)", EXTRACT_16BITS(tptr+2));
+ ND_PRINT((ndo, "\n\tChecksum 0x%04x (unverified)", EXTRACT_16BITS(tptr+2)));
tptr += UDLD_HEADER_LEN;
while (tptr < (pptr+length)) {
- if (!TTEST2(*tptr, 4))
- goto trunc;
+ ND_TCHECK2(*tptr, 4);
type = EXTRACT_16BITS(tptr);
- len = EXTRACT_16BITS(tptr+2);
+ len = EXTRACT_16BITS(tptr+2);
len -= 4;
tptr += 4;
@@ -132,37 +126,37 @@ udld_print (const u_char *pptr, u_int length)
return;
}
- printf("\n\t%s (0x%04x) TLV, length %u",
+ ND_PRINT((ndo, "\n\t%s (0x%04x) TLV, length %u",
tok2str(udld_tlv_values, "Unknown", type),
- type, len);
+ type, len));
switch (type) {
case UDLD_DEVICE_ID_TLV:
case UDLD_PORT_ID_TLV:
case UDLD_ECHO_TLV:
- case UDLD_DEVICE_NAME_TLV:
- printf(", %s", tptr);
+ case UDLD_DEVICE_NAME_TLV:
+ ND_PRINT((ndo, ", %s", tptr));
break;
- case UDLD_MESSAGE_INTERVAL_TLV:
+ case UDLD_MESSAGE_INTERVAL_TLV:
case UDLD_TIMEOUT_INTERVAL_TLV:
- printf(", %us", (*tptr));
+ ND_PRINT((ndo, ", %us", (*tptr)));
break;
case UDLD_SEQ_NUMBER_TLV:
- printf(", %u", EXTRACT_32BITS(tptr));
+ ND_PRINT((ndo, ", %u", EXTRACT_32BITS(tptr)));
break;
default:
break;
- }
+ }
tptr += len;
}
return;
trunc:
- printf("[|udld]");
+ ND_PRINT((ndo, "[|udld]"));
}
/*
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