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author | delphij <delphij@FreeBSD.org> | 2015-01-06 19:03:11 +0000 |
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committer | delphij <delphij@FreeBSD.org> | 2015-01-06 19:03:11 +0000 |
commit | 08263d19579d35a7a65e0c8bcb768504ce76d04e (patch) | |
tree | b0af675e15d65cc0adac2367c37233a794389c9a /print-udld.c | |
parent | 89918529102669b0d24d8aac9e5516b010b1c81c (diff) | |
download | FreeBSD-src-08263d19579d35a7a65e0c8bcb768504ce76d04e.zip FreeBSD-src-08263d19579d35a7a65e0c8bcb768504ce76d04e.tar.gz |
Vendor import of tcpdump 4.6.2.
Diffstat (limited to 'print-udld.c')
-rw-r--r-- | print-udld.c | 74 |
1 files changed, 34 insertions, 40 deletions
diff --git a/print-udld.c b/print-udld.c index a5488dd..15e2bf6 100644 --- a/print-udld.c +++ b/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]")); } /* |