summaryrefslogtreecommitdiffstats
path: root/print-m3ua.c
diff options
context:
space:
mode:
Diffstat (limited to 'print-m3ua.c')
-rw-r--r--print-m3ua.c337
1 files changed, 337 insertions, 0 deletions
diff --git a/print-m3ua.c b/print-m3ua.c
new file mode 100644
index 0000000..ecf7db8
--- /dev/null
+++ b/print-m3ua.c
@@ -0,0 +1,337 @@
+/* Copyright (c) 2013, The TCPDUMP project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* \summary: Message Transfer Part 3 (MTP3) User Adaptation Layer (M3UA) printer */
+
+/* RFC 4666 */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "netdissect-stdinc.h"
+
+#define ND_LONGJMP_FROM_TCHECK
+#include "netdissect.h"
+#include "extract.h"
+
+
+#define M3UA_REL_1_0 1
+
+struct m3ua_common_header {
+ nd_uint8_t v;
+ nd_uint8_t reserved;
+ nd_uint8_t msg_class;
+ nd_uint8_t msg_type;
+ nd_uint32_t len;
+};
+
+struct m3ua_param_header {
+ nd_uint16_t tag;
+ nd_uint16_t len;
+};
+
+/* message classes */
+#define M3UA_MSGC_MGMT 0
+#define M3UA_MSGC_TRANSFER 1
+#define M3UA_MSGC_SSNM 2
+#define M3UA_MSGC_ASPSM 3
+#define M3UA_MSGC_ASPTM 4
+/* reserved values */
+#define M3UA_MSGC_RKM 9
+
+static const struct tok MessageClasses[] = {
+ { M3UA_MSGC_MGMT, "Management" },
+ { M3UA_MSGC_TRANSFER, "Transfer" },
+ { M3UA_MSGC_SSNM, "SS7" },
+ { M3UA_MSGC_ASPSM, "ASP" },
+ { M3UA_MSGC_ASPTM, "ASP" },
+ { M3UA_MSGC_RKM, "Routing Key Management"},
+ { 0, NULL }
+};
+
+/* management messages */
+#define M3UA_MGMT_ERROR 0
+#define M3UA_MGMT_NOTIFY 1
+
+static const struct tok MgmtMessages[] = {
+ { M3UA_MGMT_ERROR, "Error" },
+ { M3UA_MGMT_NOTIFY, "Notify" },
+ { 0, NULL }
+};
+
+/* transfer messages */
+#define M3UA_TRANSFER_DATA 1
+
+static const struct tok TransferMessages[] = {
+ { M3UA_TRANSFER_DATA, "Data" },
+ { 0, NULL }
+};
+
+/* SS7 Signaling Network Management messages */
+#define M3UA_SSNM_DUNA 1
+#define M3UA_SSNM_DAVA 2
+#define M3UA_SSNM_DAUD 3
+#define M3UA_SSNM_SCON 4
+#define M3UA_SSNM_DUPU 5
+#define M3UA_SSNM_DRST 6
+
+static const struct tok SS7Messages[] = {
+ { M3UA_SSNM_DUNA, "Destination Unavailable" },
+ { M3UA_SSNM_DAVA, "Destination Available" },
+ { M3UA_SSNM_DAUD, "Destination State Audit" },
+ { M3UA_SSNM_SCON, "Signalling Congestion" },
+ { M3UA_SSNM_DUPU, "Destination User Part Unavailable" },
+ { M3UA_SSNM_DRST, "Destination Restricted" },
+ { 0, NULL }
+};
+
+/* ASP State Maintenance messages */
+#define M3UA_ASP_UP 1
+#define M3UA_ASP_DN 2
+#define M3UA_ASP_BEAT 3
+#define M3UA_ASP_UP_ACK 4
+#define M3UA_ASP_DN_ACK 5
+#define M3UA_ASP_BEAT_ACK 6
+
+static const struct tok ASPStateMessages[] = {
+ { M3UA_ASP_UP, "Up" },
+ { M3UA_ASP_DN, "Down" },
+ { M3UA_ASP_BEAT, "Heartbeat" },
+ { M3UA_ASP_UP_ACK, "Up Acknowledgement" },
+ { M3UA_ASP_DN_ACK, "Down Acknowledgement" },
+ { M3UA_ASP_BEAT_ACK, "Heartbeat Acknowledgement" },
+ { 0, NULL }
+};
+
+/* ASP Traffic Maintenance messages */
+#define M3UA_ASP_AC 1
+#define M3UA_ASP_IA 2
+#define M3UA_ASP_AC_ACK 3
+#define M3UA_ASP_IA_ACK 4
+
+static const struct tok ASPTrafficMessages[] = {
+ { M3UA_ASP_AC, "Active" },
+ { M3UA_ASP_IA, "Inactive" },
+ { M3UA_ASP_AC_ACK, "Active Acknowledgement" },
+ { M3UA_ASP_IA_ACK, "Inactive Acknowledgement" },
+ { 0, NULL }
+};
+
+/* Routing Key Management messages */
+#define M3UA_RKM_REQ 1
+#define M3UA_RKM_RSP 2
+#define M3UA_RKM_DEREQ 3
+#define M3UA_RKM_DERSP 4
+
+static const struct tok RoutingKeyMgmtMessages[] = {
+ { M3UA_RKM_REQ, "Registration Request" },
+ { M3UA_RKM_RSP, "Registration Response" },
+ { M3UA_RKM_DEREQ, "Deregistration Request" },
+ { M3UA_RKM_DERSP, "Deregistration Response" },
+ { 0, NULL }
+};
+
+static const struct uint_tokary m3ua_msgc2tokary[] = {
+ { M3UA_MSGC_MGMT, MgmtMessages },
+ { M3UA_MSGC_TRANSFER, TransferMessages },
+ { M3UA_MSGC_SSNM, SS7Messages },
+ { M3UA_MSGC_ASPSM, ASPStateMessages },
+ { M3UA_MSGC_ASPTM, ASPTrafficMessages },
+ { M3UA_MSGC_RKM, RoutingKeyMgmtMessages },
+ /* uint2tokary() does not use array termination. */
+};
+
+/* M3UA Parameters */
+#define M3UA_PARAM_INFO 0x0004
+#define M3UA_PARAM_ROUTING_CTX 0x0006
+#define M3UA_PARAM_DIAGNOSTIC 0x0007
+#define M3UA_PARAM_HB_DATA 0x0009
+#define M3UA_PARAM_TRAFFIC_MODE_TYPE 0x000b
+#define M3UA_PARAM_ERROR_CODE 0x000c
+#define M3UA_PARAM_STATUS 0x000d
+#define M3UA_PARAM_ASP_ID 0x0011
+#define M3UA_PARAM_AFFECTED_POINT_CODE 0x0012
+#define M3UA_PARAM_CORR_ID 0x0013
+
+#define M3UA_PARAM_NETWORK_APPEARANCE 0x0200
+#define M3UA_PARAM_USER 0x0204
+#define M3UA_PARAM_CONGESTION_INDICATION 0x0205
+#define M3UA_PARAM_CONCERNED_DST 0x0206
+#define M3UA_PARAM_ROUTING_KEY 0x0207
+#define M3UA_PARAM_REG_RESULT 0x0208
+#define M3UA_PARAM_DEREG_RESULT 0x0209
+#define M3UA_PARAM_LOCAL_ROUTING_KEY_ID 0x020a
+#define M3UA_PARAM_DST_POINT_CODE 0x020b
+#define M3UA_PARAM_SI 0x020c
+#define M3UA_PARAM_ORIGIN_POINT_CODE_LIST 0x020e
+#define M3UA_PARAM_PROTO_DATA 0x0210
+#define M3UA_PARAM_REG_STATUS 0x0212
+#define M3UA_PARAM_DEREG_STATUS 0x0213
+
+static const struct tok ParamName[] = {
+ { M3UA_PARAM_INFO, "INFO String" },
+ { M3UA_PARAM_ROUTING_CTX, "Routing Context" },
+ { M3UA_PARAM_DIAGNOSTIC, "Diagnostic Info" },
+ { M3UA_PARAM_HB_DATA, "Heartbeat Data" },
+ { M3UA_PARAM_TRAFFIC_MODE_TYPE, "Traffic Mode Type" },
+ { M3UA_PARAM_ERROR_CODE, "Error Code" },
+ { M3UA_PARAM_STATUS, "Status" },
+ { M3UA_PARAM_ASP_ID, "ASP Identifier" },
+ { M3UA_PARAM_AFFECTED_POINT_CODE, "Affected Point Code" },
+ { M3UA_PARAM_CORR_ID, "Correlation ID" },
+ { M3UA_PARAM_NETWORK_APPEARANCE, "Network Appearance" },
+ { M3UA_PARAM_USER, "User/Cause" },
+ { M3UA_PARAM_CONGESTION_INDICATION, "Congestion Indications" },
+ { M3UA_PARAM_CONCERNED_DST, "Concerned Destination" },
+ { M3UA_PARAM_ROUTING_KEY, "Routing Key" },
+ { M3UA_PARAM_REG_RESULT, "Registration Result" },
+ { M3UA_PARAM_DEREG_RESULT, "Deregistration Result" },
+ { M3UA_PARAM_LOCAL_ROUTING_KEY_ID, "Local Routing Key Identifier" },
+ { M3UA_PARAM_DST_POINT_CODE, "Destination Point Code" },
+ { M3UA_PARAM_SI, "Service Indicators" },
+ { M3UA_PARAM_ORIGIN_POINT_CODE_LIST, "Originating Point Code List" },
+ { M3UA_PARAM_PROTO_DATA, "Protocol Data" },
+ { M3UA_PARAM_REG_STATUS, "Registration Status" },
+ { M3UA_PARAM_DEREG_STATUS, "Deregistration Status" },
+ { 0, NULL }
+};
+
+static void
+tag_value_print(netdissect_options *ndo,
+ const u_char *buf, const uint16_t tag, const uint16_t size)
+{
+ switch (tag) {
+ case M3UA_PARAM_NETWORK_APPEARANCE:
+ case M3UA_PARAM_ROUTING_CTX:
+ case M3UA_PARAM_CORR_ID:
+ /* buf and size don't include the header */
+ if (size < 4)
+ goto invalid;
+ ND_PRINT("0x%08x", GET_BE_U_4(buf));
+ break;
+ /* ... */
+ default:
+ ND_PRINT("(length %zu)", size + sizeof(struct m3ua_param_header));
+ }
+ ND_TCHECK_LEN(buf, size);
+ return;
+
+invalid:
+ nd_print_invalid(ndo);
+ ND_TCHECK_LEN(buf, size);
+}
+
+/*
+ * 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 invalid;
+ /* Parameter Tag */
+ hdr_tag = GET_BE_U_2(p);
+ ND_PRINT("\n\t\t\t%s: ", tok2str(ParamName, "Unknown Parameter (0x%04x)", hdr_tag));
+ /* Parameter Length */
+ hdr_len = GET_BE_U_2(p + 2);
+ if (hdr_len < sizeof(struct m3ua_param_header))
+ goto invalid;
+ /* Parameter Value */
+ align = (p + hdr_len - buf) % 4;
+ align = align ? 4 - align : 0;
+ ND_TCHECK_LEN(p, hdr_len + align);
+ tag_value_print(ndo, p, hdr_tag, hdr_len - sizeof(struct m3ua_param_header));
+ p += hdr_len + align;
+ }
+ return;
+
+invalid:
+ nd_print_invalid(ndo);
+ ND_TCHECK_LEN(buf, size);
+}
+
+/*
+ * 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;
+ uint8_t msg_class;
+
+ ndo->ndo_protocol = "m3ua";
+ /* size includes the header */
+ if (size < sizeof(struct m3ua_common_header))
+ goto invalid;
+ ND_TCHECK_SIZE(hdr);
+ if (GET_U_1(hdr->v) != M3UA_REL_1_0)
+ return;
+
+ msg_class = GET_U_1(hdr->msg_class);
+ dict = uint2tokary(m3ua_msgc2tokary, msg_class);
+
+ ND_PRINT("\n\t\t%s", tok2str(MessageClasses, "Unknown message class %i", msg_class));
+ if (dict != NULL)
+ ND_PRINT(" %s Message",
+ tok2str(dict, "Unknown (0x%02x)", GET_U_1(hdr->msg_type)));
+
+ if (size != GET_BE_U_4(hdr->len))
+ ND_PRINT("\n\t\t\t@@@@@@ Corrupted length %u of message @@@@@@",
+ GET_BE_U_4(hdr->len));
+ else
+ m3ua_tags_print(ndo, buf + sizeof(struct m3ua_common_header),
+ GET_BE_U_4(hdr->len) - sizeof(struct m3ua_common_header));
+ return;
+
+invalid:
+ nd_print_invalid(ndo);
+ ND_TCHECK_LEN(buf, size);
+}
+