* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
+/* \summary: Asynchronous Transfer Mode (ATM) printer */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
-#include "interface.h"
+#include "netdissect.h"
#include "extract.h"
#include "addrtoname.h"
#include "atm.h"
static void
sig_print(netdissect_options *ndo,
- const u_char *p, int caplen)
+ const u_char *p)
{
uint32_t call_ref;
- if (caplen < PROTO_POS) {
- ND_PRINT((ndo, "%s", tstr));
- return;
- }
+ ND_TCHECK(p[PROTO_POS]);
if (p[PROTO_POS] == Q2931) {
/*
* protocol:Q.2931 for User to Network Interface
* (UNI 3.1) signalling
*/
ND_PRINT((ndo, "Q.2931"));
- if (caplen < MSG_TYPE_POS) {
- ND_PRINT((ndo, " %s", tstr));
- return;
- }
+ ND_TCHECK(p[MSG_TYPE_POS]);
ND_PRINT((ndo, ":%s ",
tok2str(msgtype2str, "msgtype#%d", p[MSG_TYPE_POS])));
/* SCCOP with some unknown protocol atop it */
ND_PRINT((ndo, "SSCOP, proto %d ", p[PROTO_POS]));
}
+ return;
+
+trunc:
+ ND_PRINT((ndo, " %s", tstr));
}
/*
switch (vci) {
case VCI_PPC:
- sig_print(ndo, p, caplen);
+ sig_print(ndo, p);
return;
case VCI_BCC:
uint8_t unused[28];
};
-int
+void
oam_print (netdissect_options *ndo,
const u_char *p, u_int length, u_int hec)
{
} oam_ptr;
+ ND_TCHECK(*(p+ATM_HDR_LEN_NOHEC+hec));
cell_header = EXTRACT_32BITS(p+hec);
cell_type = ((*(p+ATM_HDR_LEN_NOHEC+hec))>>4) & 0x0f;
func_type = (*(p+ATM_HDR_LEN_NOHEC+hec)) & 0x0f;
clp, length));
if (!ndo->ndo_vflag) {
- return 1;
+ return;
}
ND_PRINT((ndo, "\n\tcell-type %s (%u)",
switch (cell_type << 4 | func_type) {
case (OAM_CELLTYPE_FM << 4 | OAM_FM_FUNCTYPE_LOOPBACK):
oam_ptr.oam_fm_loopback = (const struct oam_fm_loopback_t *)(p + OAM_CELLTYPE_FUNCTYPE_LEN);
+ ND_TCHECK(*oam_ptr.oam_fm_loopback);
ND_PRINT((ndo, "\n\tLoopback-Indicator %s, Correlation-Tag 0x%08x",
tok2str(oam_fm_loopback_indicator_values,
"Unknown",
case (OAM_CELLTYPE_FM << 4 | OAM_FM_FUNCTYPE_AIS):
case (OAM_CELLTYPE_FM << 4 | OAM_FM_FUNCTYPE_RDI):
oam_ptr.oam_fm_ais_rdi = (const struct oam_fm_ais_rdi_t *)(p + OAM_CELLTYPE_FUNCTYPE_LEN);
+ ND_TCHECK(*oam_ptr.oam_fm_ais_rdi);
ND_PRINT((ndo, "\n\tFailure-type 0x%02x", oam_ptr.oam_fm_ais_rdi->failure_type));
ND_PRINT((ndo, "\n\tLocation-ID "));
for (idx = 0; idx < sizeof(oam_ptr.oam_fm_ais_rdi->failure_location); idx++) {
}
/* crc10 checksum verification */
+ ND_TCHECK2(*(p + OAM_CELLTYPE_FUNCTYPE_LEN + OAM_FUNCTION_SPECIFIC_LEN), 2);
cksum = EXTRACT_16BITS(p + OAM_CELLTYPE_FUNCTYPE_LEN + OAM_FUNCTION_SPECIFIC_LEN)
& OAM_CRC10_MASK;
cksum_shouldbe = verify_crc10_cksum(0, p, OAM_PAYLOAD_LEN);
cksum,
cksum_shouldbe == 0 ? "" : "in"));
- return 1;
+ return;
+
+trunc:
+ ND_PRINT((ndo, "[|oam]"));
+ return;
}