*/
#ifndef lint
static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-atm.c,v 1.39 2005-05-18 20:24:04 hannes Exp $ (LBL)";
+ "@(#) $Header: /tcpdump/master/tcpdump/print-atm.c,v 1.49 2007-10-22 19:37:51 guy Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
#include "ether.h"
+#define OAM_CRC10_MASK 0x3ff
+#define OAM_PAYLOAD_LEN 48
+#define OAM_FUNCTION_SPECIFIC_LEN 45 /* this excludes crc10 and cell-type/function-type */
+#define OAM_CELLTYPE_FUNCTYPE_LEN 1
+
+struct tok oam_f_values[] = {
+ { VCI_OAMF4SC, "OAM F4 (segment)" },
+ { VCI_OAMF4EC, "OAM F4 (end)" },
+ { 0, NULL }
+};
+
+struct tok atm_pty_values[] = {
+ { 0x0, "user data, uncongested, SDU 0" },
+ { 0x1, "user data, uncongested, SDU 1" },
+ { 0x2, "user data, congested, SDU 0" },
+ { 0x3, "user data, congested, SDU 1" },
+ { 0x4, "VCC OAM F5 flow segment" },
+ { 0x5, "VCC OAM F5 flow end-to-end" },
+ { 0x6, "Traffic Control and resource Mgmt" },
+ { 0, NULL }
+};
+
+#define OAM_CELLTYPE_FM 0x1
+#define OAM_CELLTYPE_PM 0x2
+#define OAM_CELLTYPE_AD 0x8
+#define OAM_CELLTYPE_SM 0xf
+
struct tok oam_celltype_values[] = {
- { 0x1, "Fault Management" },
- { 0x2, "Performance Management" },
- { 0x8, "activate/deactivate" },
- { 0xf, "System Management" },
+ { OAM_CELLTYPE_FM, "Fault Management" },
+ { OAM_CELLTYPE_PM, "Performance Management" },
+ { OAM_CELLTYPE_AD, "activate/deactivate" },
+ { OAM_CELLTYPE_SM, "System Management" },
{ 0, NULL }
};
+#define OAM_FM_FUNCTYPE_AIS 0x0
+#define OAM_FM_FUNCTYPE_RDI 0x1
+#define OAM_FM_FUNCTYPE_CONTCHECK 0x4
+#define OAM_FM_FUNCTYPE_LOOPBACK 0x8
+
struct tok oam_fm_functype_values[] = {
- { 0x0, "AIS" },
- { 0x1, "RDI" },
- { 0x4, "Continuity Check" },
- { 0x8, "Loopback" },
+ { OAM_FM_FUNCTYPE_AIS, "AIS" },
+ { OAM_FM_FUNCTYPE_RDI, "RDI" },
+ { OAM_FM_FUNCTYPE_CONTCHECK, "Continuity Check" },
+ { OAM_FM_FUNCTYPE_LOOPBACK, "Loopback" },
{ 0, NULL }
};
{ 0, NULL }
};
+#define OAM_FM_LOOPBACK_INDICATOR_MASK 0x1
+
+struct tok oam_fm_loopback_indicator_values[] = {
+ { 0x0, "Reply" },
+ { 0x1, "Request" },
+ { 0, NULL }
+};
+
static const struct tok *oam_functype_values[16] = {
NULL,
oam_fm_functype_values, /* 1 */
printf("(LLC %s) ",
etherproto_string(htons(extracted_ethertype)));
}
- if (!xflag && !qflag)
+ if (!suppress_default_print)
default_print(p, caplen);
}
}
return (caplen);
}
+ /* Cisco Style NLPID ? */
+ if (*p == LLC_UI) {
+ if (eflag)
+ printf("CNLPID ");
+ isoclns_print(p+1, length-1, caplen-1);
+ return hdrlen;
+ }
+
/*
* Extract the presumed LLC header into a variable, for quick
* testing.
printf(":%s ",
tok2str(msgtype2str, "msgtype#%d", p[MSG_TYPE_POS]));
- if (caplen < CALL_REF_POS+3) {
- printf("[|atm]");
- return;
- }
+ /*
+ * The call reference comes before the message type,
+ * so if we know we have the message type, which we
+ * do from the caplen test above, we also know we have
+ * the call reference.
+ */
call_ref = EXTRACT_24BITS(&p[CALL_REF_POS]);
printf("CALL_REF:0x%06x", call_ref);
} else {
if (vpi == 0) {
switch (vci) {
- case PPC:
+ case VCI_PPC:
sig_print(p, caplen);
return;
- case BCC:
+ case VCI_BCC:
printf("broadcast sig: ");
return;
- case OAMF4SC: /* fall through */
- case OAMF4EC:
- oam_print(p, length);
+ case VCI_OAMF4SC: /* fall through */
+ case VCI_OAMF4EC:
+ oam_print(p, length, ATM_OAM_HEC);
return;
- case METAC:
+ case VCI_METAC:
printf("meta: ");
return;
- case ILMIC:
+ case VCI_ILMIC:
printf("ilmi: ");
snmp_print(p, length);
return;
}
}
+struct oam_fm_loopback_t {
+ u_int8_t loopback_indicator;
+ u_int8_t correlation_tag[4];
+ u_int8_t loopback_id[12];
+ u_int8_t source_id[12];
+ u_int8_t unused[16];
+};
+
+struct oam_fm_ais_rdi_t {
+ u_int8_t failure_type;
+ u_int8_t failure_location[16];
+ u_int8_t unused[28];
+};
+
int
-oam_print (const u_char *p, u_int length) {
+oam_print (const u_char *p, u_int length, u_int hec) {
+
+ u_int32_t cell_header;
+ u_int16_t vpi, vci, cksum, cksum_shouldbe, idx;
+ u_int8_t cell_type, func_type, payload, clp;
- u_int16_t cell_header, cell_type, func_type,vpi,vci,payload,clp;
+ union {
+ const struct oam_fm_loopback_t *oam_fm_loopback;
+ const struct oam_fm_ais_rdi_t *oam_fm_ais_rdi;
+ } oam_ptr;
- cell_header = EXTRACT_32BITS(p);
- cell_type = ((*(p+4))>>4) & 0x0f;
- func_type = *(p+4) & 0x0f;
+
+ 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;
vpi = (cell_header>>20)&0xff;
vci = (cell_header>>4)&0xffff;
payload = (cell_header>>1)&0x7;
clp = cell_header&0x1;
- switch (vci) {
- case OAMF4SC:
- printf("OAM F4 (segment), ");
- break;
- case OAMF4EC:
- printf("OAM F4 (end), ");
- break;
- default:
- printf("OAM F5, ");
- break;
- }
+ printf("%s, vpi %u, vci %u, payload [ %s ], clp %u, length %u",
+ tok2str(oam_f_values, "OAM F5", vci),
+ vpi, vci,
+ tok2str(atm_pty_values, "Unknown", payload),
+ clp, length);
- if (eflag)
- printf("vpi %u, vci %u, payload %u, clp %u, ",vpi,vci,payload,clp);
+ if (!vflag) {
+ return 1;
+ }
- printf("cell-type %s (%u)",
+ printf("\n\tcell-type %s (%u)",
tok2str(oam_celltype_values, "unknown", cell_type),
cell_type);
printf(", func-type unknown (%u)", func_type);
else
printf(", func-type %s (%u)",
- bittok2str(oam_functype_values[cell_type],"none",func_type),
+ tok2str(oam_functype_values[cell_type],"none",func_type),
func_type);
- printf(", length %u",length);
+ p += ATM_HDR_LEN_NOHEC + hec;
+
+ 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);
+ printf("\n\tLoopback-Indicator %s, Correlation-Tag 0x%08x",
+ tok2str(oam_fm_loopback_indicator_values,
+ "Unknown",
+ oam_ptr.oam_fm_loopback->loopback_indicator & OAM_FM_LOOPBACK_INDICATOR_MASK),
+ EXTRACT_32BITS(&oam_ptr.oam_fm_loopback->correlation_tag));
+ printf("\n\tLocation-ID ");
+ for (idx = 0; idx < sizeof(oam_ptr.oam_fm_loopback->loopback_id); idx++) {
+ if (idx % 2) {
+ printf("%04x ", EXTRACT_16BITS(&oam_ptr.oam_fm_loopback->loopback_id[idx]));
+ }
+ }
+ printf("\n\tSource-ID ");
+ for (idx = 0; idx < sizeof(oam_ptr.oam_fm_loopback->source_id); idx++) {
+ if (idx % 2) {
+ printf("%04x ", EXTRACT_16BITS(&oam_ptr.oam_fm_loopback->source_id[idx]));
+ }
+ }
+ break;
+
+ 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);
+ printf("\n\tFailure-type 0x%02x", oam_ptr.oam_fm_ais_rdi->failure_type);
+ printf("\n\tLocation-ID ");
+ for (idx = 0; idx < sizeof(oam_ptr.oam_fm_ais_rdi->failure_location); idx++) {
+ if (idx % 2) {
+ printf("%04x ", EXTRACT_16BITS(&oam_ptr.oam_fm_ais_rdi->failure_location[idx]));
+ }
+ }
+ break;
+
+ case (OAM_CELLTYPE_FM << 4 | OAM_FM_FUNCTYPE_CONTCHECK):
+ /* FIXME */
+ break;
+
+ default:
+ break;
+ }
+
+ /* crc10 checksum verification */
+ 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);
+
+ printf("\n\tcksum 0x%03x (%scorrect)",
+ cksum,
+ cksum_shouldbe == 0 ? "" : "in");
+
return 1;
}
projects / tcpdump / blobdiff