add internal ids to uuids. Use these internal ids to match uuids from bind and bind_ack. Create a new uuid list to hold all accepted uuids. Modifications to dce-iface to accomodate these changes as well + unittests

15 years ago · fc37e9d6ee
parent 816d2ef0c0
commit fc37e9d6ee
4 changed files with 1186 additions and 19 deletions
--- a/src/app-layer-dcerpc-common.h
+++ b/src/app-layer-dcerpc-common.h
@ -133,6 +133,7 @@ typedef struct DCERPCHdrUdp_ {

 typedef struct DCERPCUuidEntry_ {
    uint16_t ctxid;
+    uint16_t internal_id;
    uint16_t result;
    uint8_t uuid[16];
    uint16_t version;
@ -150,12 +151,16 @@ typedef struct DCERPCBindBindAck_ {
    uint16_t versionminor;
    DCERPCUuidEntry *uuid_entry;
    TAILQ_HEAD(, DCERPCUuidEntry_) uuid_list;
+    /* the interface uuids that the server has accepted */
+    TAILQ_HEAD(, DCERPCUuidEntry_) accepted_uuid_list;
+    uint16_t uuid_internal_id;
    uint16_t secondaryaddrlen;
    uint16_t secondaryaddrlenleft;
    uint16_t result;
 } DCERPCBindBindAck;

 typedef struct DCERPCRequest_ {
+    uint16_t ctxid;
    uint16_t opnum;
    /* holds the stub data for the request */
    uint8_t *stub_data_buffer;
@ -163,6 +168,7 @@ typedef struct DCERPCRequest_ {
    uint32_t stub_data_buffer_len;
    /* used by the dce preproc to indicate fresh entry in the stub data buffer */
    uint8_t stub_data_fresh;
+    uint8_t first_request_seen;
 } DCERPCRequest;

 typedef struct DCERPCResponse_ {
--- a/src/app-layer-dcerpc.c
+++ b/src/app-layer-dcerpc.c
@ -244,6 +244,8 @@ static uint32_t DCERPCParseBINDCTXItem(DCERPC *dcerpc, uint8_t *input, uint32_t
                        SCLogDebug("UUID Entry is NULL");
                        SCReturnUInt(0);
                    } else {
+                        dcerpc->dcerpcbindbindack.uuid_entry->internal_id =
+                            dcerpc->dcerpcbindbindack.uuid_internal_id++;
                        memcpy(dcerpc->dcerpcbindbindack.uuid_entry->uuid,
                               dcerpc->dcerpcbindbindack.uuid,
                               sizeof(dcerpc->dcerpcbindbindack.uuid));
@ -453,6 +455,8 @@ static uint32_t DCERPCParseBINDCTXItem(DCERPC *dcerpc, uint8_t *input, uint32_t
                    SCLogDebug("UUID Entry is NULL\n");
                    SCReturnUInt(0);
                } else {
+                    dcerpc->dcerpcbindbindack.uuid_entry->internal_id =
+                        dcerpc->dcerpcbindbindack.uuid_internal_id++;
                    memcpy(dcerpc->dcerpcbindbindack.uuid_entry->uuid,
                           dcerpc->dcerpcbindbindack.uuid,
                           sizeof(dcerpc->dcerpcbindbindack.uuid));
@ -502,17 +506,33 @@ static uint32_t DCERPCParseBINDACKCTXItem(DCERPC *dcerpc, uint8_t *input, uint32
                    dcerpc->dcerpcbindbindack.result = *p;
                    dcerpc->dcerpcbindbindack.result |= *(p + 1) << 8;
                    TAILQ_FOREACH(uuid_entry, &dcerpc->dcerpcbindbindack.uuid_list, next) {
-                        if (uuid_entry->ctxid == dcerpc->dcerpcbindbindack.numctxitems
-                                - dcerpc->dcerpcbindbindack.numctxitemsleft) {
+                        if (uuid_entry->internal_id == dcerpc->dcerpcbindbindack.uuid_internal_id) {
                            uuid_entry->result = dcerpc->dcerpcbindbindack.result;
 #ifdef UNITTESTS
                            if (RunmodeIsUnittests()) {
                                printUUID("BIND_ACK", uuid_entry);
                            }
 #endif
+                            if (uuid_entry->result != 0)
+                                break;
+
+                            dcerpc->dcerpcbindbindack.uuid_entry = (DCERPCUuidEntry *)
+                                SCCalloc(1, sizeof(DCERPCUuidEntry));
+                            if (dcerpc->dcerpcbindbindack.uuid_entry == NULL) {
+                                SCLogError(SC_ERR_MEM_ALLOC,
+                                           "Error allocating memory\n");
+                                exit(EXIT_FAILURE);
+                            }
+                            memcpy(dcerpc->dcerpcbindbindack.uuid_entry,
+                                   uuid_entry,
+                                   sizeof(DCERPCUuidEntry));
+                            TAILQ_INSERT_HEAD(&dcerpc->dcerpcbindbindack.accepted_uuid_list,
+                                              dcerpc->dcerpcbindbindack.uuid_entry,
+                                              next);
                            break;
                        }
                    }
+                    dcerpc->dcerpcbindbindack.uuid_internal_id++;
                    dcerpc->dcerpcbindbindack.numctxitemsleft--;
                    dcerpc->bytesprocessed += (24);
                    dcerpc->dcerpcbindbindack.ctxbytesprocessed += (24);
@ -614,17 +634,33 @@ static uint32_t DCERPCParseBINDACKCTXItem(DCERPC *dcerpc, uint8_t *input, uint32
                    break;
            case 23:
                TAILQ_FOREACH(uuid_entry, &dcerpc->dcerpcbindbindack.uuid_list, next) {
-                    if (uuid_entry->ctxid == dcerpc->dcerpcbindbindack.numctxitems
-                            - dcerpc->dcerpcbindbindack.numctxitemsleft) {
+                    if (uuid_entry->internal_id == dcerpc->dcerpcbindbindack.uuid_internal_id) {
                        uuid_entry->result = dcerpc->dcerpcbindbindack.result;
 #ifdef UNITTESTS
                        if (RunmodeIsUnittests()) {
                            printUUID("BIND_ACK", uuid_entry);
                        }
 #endif
+                        if (uuid_entry->result != 0)
+                            break;
+
+                        dcerpc->dcerpcbindbindack.uuid_entry = (DCERPCUuidEntry *)
+                            SCCalloc(1, sizeof(DCERPCUuidEntry));
+                        if (dcerpc->dcerpcbindbindack.uuid_entry == NULL) {
+                            SCLogError(SC_ERR_MEM_ALLOC,
+                                       "Error allocating memory\n");
+                            exit(EXIT_FAILURE);
+                        }
+                        memcpy(dcerpc->dcerpcbindbindack.uuid_entry,
+                               uuid_entry,
+                               sizeof(DCERPCUuidEntry));
+                        TAILQ_INSERT_HEAD(&dcerpc->dcerpcbindbindack.accepted_uuid_list,
+                                          dcerpc->dcerpcbindbindack.uuid_entry,
+                                          next);
                        break;
                    }
                }
+                dcerpc->dcerpcbindbindack.uuid_internal_id++;
                dcerpc->dcerpcbindbindack.numctxitemsleft--;
                p++;
                --input_len;
@ -650,9 +686,17 @@ static uint32_t DCERPCParseBIND(DCERPC *dcerpc, uint8_t *input, uint32_t input_l
                        TAILQ_REMOVE(&dcerpc->dcerpcbindbindack.uuid_list, item, next);
                        SCFree(item);
                    }
-                    TAILQ_INIT(&dcerpc->dcerpcbindbindack.uuid_list);
+                    if (dcerpc->dcerpchdr.type == BIND) {
+                        while ((item = TAILQ_FIRST(&dcerpc->dcerpcbindbindack.accepted_uuid_list))) {
+                            TAILQ_REMOVE(&dcerpc->dcerpcbindbindack.accepted_uuid_list, item, next);
+                            SCFree(item);
+                        }
+                        TAILQ_INIT(&dcerpc->dcerpcbindbindack.accepted_uuid_list);
+                    }
+                    dcerpc->dcerpcbindbindack.uuid_internal_id = 0;
                    dcerpc->dcerpcbindbindack.numctxitems = *(p + 8);
                    dcerpc->dcerpcbindbindack.numctxitemsleft = dcerpc->dcerpcbindbindack.numctxitems;
+                    TAILQ_INIT(&dcerpc->dcerpcbindbindack.uuid_list);
                    dcerpc->bytesprocessed += 12;
                    SCReturnUInt(12U);
                } else {
@ -701,6 +745,14 @@ static uint32_t DCERPCParseBIND(DCERPC *dcerpc, uint8_t *input, uint32_t input_l
                    TAILQ_REMOVE(&dcerpc->dcerpcbindbindack.uuid_list, item, next);
                    SCFree(item);
                }
+                if (dcerpc->dcerpchdr.type == BIND) {
+                    while ((item = TAILQ_FIRST(&dcerpc->dcerpcbindbindack.accepted_uuid_list))) {
+                        TAILQ_REMOVE(&dcerpc->dcerpcbindbindack.accepted_uuid_list, item, next);
+                        SCFree(item);
+                    }
+                    TAILQ_INIT(&dcerpc->dcerpcbindbindack.accepted_uuid_list);
+                }
+                dcerpc->dcerpcbindbindack.uuid_internal_id = 0;
                dcerpc->dcerpcbindbindack.numctxitems = *(p++);
                dcerpc->dcerpcbindbindack.numctxitemsleft = dcerpc->dcerpcbindbindack.numctxitems;
                TAILQ_INIT(&dcerpc->dcerpcbindbindack.uuid_list);
@ -737,6 +789,7 @@ static uint32_t DCERPCParseBINDACK(DCERPC *dcerpc, uint8_t *input, uint32_t inpu

    switch (dcerpc->bytesprocessed) {
        case 16:
+            dcerpc->dcerpcbindbindack.uuid_internal_id = 0;
            dcerpc->dcerpcbindbindack.numctxitems = 0;
            if (input_len >= 10) {
                if (dcerpc->dcerpchdr.packed_drep[0] == 0x10) {
@ -823,12 +876,17 @@ static uint32_t DCERPCParseREQUEST(DCERPC *dcerpc, uint8_t *input, uint32_t inpu
            if (input_len >= 8) {
                if (dcerpc->dcerpchdr.type == REQUEST) {
                    if (dcerpc->dcerpchdr.packed_drep[0] == 0x10) {
+                        dcerpc->dcerpcrequest.ctxid = *(p + 4);
+                        dcerpc->dcerpcrequest.ctxid |= *(p + 5) << 8;
                        dcerpc->dcerpcrequest.opnum = *(p + 6);
                        dcerpc->dcerpcrequest.opnum |= *(p + 7) << 8;
                    } else {
+                        dcerpc->dcerpcrequest.ctxid = *(p + 4) << 8;
+                        dcerpc->dcerpcrequest.ctxid |= *(p + 5);
                        dcerpc->dcerpcrequest.opnum = *(p + 6) << 8;
                        dcerpc->dcerpcrequest.opnum |= *(p + 7);
                    }
+                    dcerpc->dcerpcrequest.first_request_seen = 1;
                }
                dcerpc->bytesprocessed += 8;
                SCReturnUInt(8U);
@ -855,12 +913,16 @@ static uint32_t DCERPCParseREQUEST(DCERPC *dcerpc, uint8_t *input, uint32_t inpu
                break;
        case 20:
            /* context id 1 */
-            p++;
+            dcerpc->dcerpcrequest.ctxid = *(p++) << 8;
            if (!(--input_len))
                break;
        case 21:
            /* context id 2 */
-            p++;
+            dcerpc->dcerpcrequest.ctxid |= *(p++);
+            if (dcerpc->dcerpchdr.packed_drep[0] == 0x10) {
+                dcerpc->dcerpcrequest.ctxid = SCByteSwap16(dcerpc->dcerpcrequest.ctxid);
+            }
+            dcerpc->dcerpcrequest.first_request_seen = 1;
            if (!(--input_len))
                break;
        case 22:
@ -1510,7 +1572,6 @@ static void *DCERPCStateAlloc(void) {
    if (s == NULL) {
        SCReturnPtr(NULL, "void");
    }
-
    memset(s, 0, sizeof(DCERPCState));

    s->dcerpc.transaction_id = 1;
@ -4430,7 +4491,7 @@ int DCERPCParserTest12(void) {
    result &= (dcerpc_state->dcerpc.bytesprocessed == 24);
    result &= (dcerpc_state->dcerpc.pdu_fragged == 1);

-    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER,
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT,
                      bind_ack2, bind_ack2_len);
    if (r != 0) {
        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
@ -4507,15 +4568,18 @@ int DCERPCParserTest13(void) {
        0x00, 0x00, 0x01, 0xa0, 0x00, 0x00, 0x00, 0x00,
        0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46};
    DCERPCUuidEntry *item = NULL;
+    int internal_id = 0;
    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.uuid_list, next) {
        int i = 0;
        /* check the interface uuid */
        for (i = 0; i < 16; i++) {
            if (ctx_uuid_from_pcap[i] != item->uuid[i]) {
+                result = 0;
                goto end;
            }
        }
        result = 1;
+        result &= (item->internal_id == internal_id++);
    }

 end:
@ -4619,7 +4683,7 @@ int DCERPCParserTest15(void) {
    StreamTcpInitConfig(TRUE);
    FlowL7DataPtrInit(&f);

-    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER,
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT,
                      bind_ack, bind_ack_len);
    if (r != 0) {
        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
@ -4641,6 +4705,762 @@ end:
    return result;
 }

+/**
+ * \test Check for correct internal ids for bind_acks.
+ */
+int DCERPCParserTest16(void) {
+    int result = 1;
+    Flow f;
+    int r = 0;
+
+    uint8_t bind1[] = {
+        0x05, 0x00, 0x0b, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x58, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0xd0, 0x16, 0xd0, 0x16, 0x00, 0x00, 0x00, 0x00,
+        0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+        0x50, 0x08, 0x43, 0x95, 0x43, 0x5a, 0x8b, 0xb2,
+        0xf4, 0xc5, 0xb9, 0xee, 0x67, 0x55, 0x7c, 0x19,
+        0x00, 0x00, 0x03, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x01, 0x00, 0x01, 0x00, 0xda, 0xc2, 0xbc, 0x9b,
+        0x35, 0x2e, 0xd4, 0xc9, 0x1f, 0x85, 0x01, 0xe6,
+        0x4e, 0x5a, 0x5e, 0xd4, 0x04, 0x00, 0x03, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0xb2, 0x97, 0xcc, 0x14, 0x6f, 0x70, 0x0d, 0xa5,
+        0x33, 0xd7, 0xf4, 0xe3, 0x8e, 0xb2, 0x2a, 0x1e,
+        0x05, 0x00, 0x02, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x03, 0x00, 0x01, 0x00, 0x96, 0x4e, 0xa6, 0xf6,
+        0xb2, 0x4b, 0xae, 0xb3, 0x21, 0xf4, 0x97, 0x7c,
+        0xcd, 0xa7, 0x08, 0xb0, 0x00, 0x00, 0x00, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x04, 0x00, 0x01, 0x00,
+        0xbc, 0xc0, 0xf7, 0x71, 0x3f, 0x71, 0x54, 0x44,
+        0x22, 0xa8, 0x55, 0x0f, 0x98, 0x83, 0x1f, 0xfe,
+        0x04, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x05, 0x00, 0x01, 0x00, 0xbe, 0x52, 0xf2, 0x58,
+        0x4a, 0xc3, 0xb5, 0xd0, 0xba, 0xac, 0xda, 0xf0,
+        0x12, 0x99, 0x38, 0x6e, 0x04, 0x00, 0x02, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x06, 0x00, 0x01, 0x00,
+        0xdb, 0xfa, 0x73, 0x01, 0xb3, 0x81, 0x01, 0xd4,
+        0x7f, 0xa0, 0x36, 0xb1, 0x97, 0xae, 0x29, 0x7f,
+        0x01, 0x00, 0x01, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x07, 0x00, 0x01, 0x00, 0x89, 0xbe, 0x41, 0x1d,
+        0x38, 0x75, 0xf5, 0xb5, 0xad, 0x27, 0x73, 0xf1,
+        0xb0, 0x7a, 0x28, 0x82, 0x05, 0x00, 0x02, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x08, 0x00, 0x01, 0x00,
+        0xf6, 0x87, 0x09, 0x93, 0xb8, 0xa8, 0x20, 0xc4,
+        0xb8, 0x63, 0xe6, 0x95, 0xed, 0x59, 0xee, 0x3f,
+        0x05, 0x00, 0x03, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x09, 0x00, 0x01, 0x00, 0x92, 0x77, 0x92, 0x68,
+        0x3e, 0xa4, 0xbc, 0x3f, 0x44, 0x33, 0x0e, 0xb8,
+        0x33, 0x0a, 0x2f, 0xdf, 0x01, 0x00, 0x02, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x01, 0x00,
+        0xa1, 0x03, 0xd2, 0xa9, 0xd2, 0x16, 0xc9, 0x89,
+        0x67, 0x18, 0x3e, 0xb1, 0xee, 0x6b, 0xf9, 0x18,
+        0x02, 0x00, 0x03, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x0b, 0x00, 0x01, 0x00, 0x2f, 0x09, 0x5e, 0x74,
+        0xec, 0xa0, 0xbb, 0xc1, 0x60, 0x18, 0xf1, 0x93,
+        0x04, 0x17, 0x11, 0xf9, 0x01, 0x00, 0x03, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x01, 0x00,
+        0xc8, 0x4f, 0x32, 0x4b, 0x70, 0x16, 0xd3, 0x01,
+        0x12, 0x78, 0x5a, 0x47, 0xbf, 0x6e, 0xe1, 0x88,
+        0x03, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t bind1_len = sizeof(bind1);
+
+    uint8_t bind_ack1[] = {
+        0x05, 0x00, 0x0c, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x64, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0xb8, 0x10, 0xb8, 0x10, 0xc1, 0x2b, 0x00, 0x00,
+        0x0e, 0x00, 0x5c, 0x50, 0x49, 0x50, 0x45, 0x5c,
+        0x62, 0x72, 0x6f, 0x77, 0x73, 0x65, 0x72, 0x00,
+        0x0d, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t bind_ack1_len = sizeof(bind_ack1);
+
+    uint8_t bind2[] = {
+        0x05, 0x00, 0x0b, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0xdc, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0xd0, 0x16, 0xd0, 0x16, 0x00, 0x00, 0x00, 0x00,
+        0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+        0xc7, 0x70, 0x0d, 0x3e, 0x71, 0x37, 0x39, 0x0d,
+        0x3a, 0x4f, 0xd3, 0xdc, 0xca, 0x49, 0xe8, 0xa3,
+        0x05, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x01, 0x00, 0x01, 0x00, 0x84, 0xb6, 0x55, 0x75,
+        0xdb, 0x9e, 0xba, 0x54, 0x56, 0xd3, 0x45, 0x10,
+        0xb7, 0x7a, 0x2a, 0xe2, 0x04, 0x00, 0x01, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x6e, 0x39, 0x21, 0x24, 0x70, 0x6f, 0x41, 0x57,
+        0x54, 0x70, 0xb8, 0xc3, 0x5e, 0x89, 0x3b, 0x43,
+        0x03, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x03, 0x00, 0x01, 0x00, 0x39, 0x6a, 0x86, 0x5d,
+        0x24, 0x0f, 0xd2, 0xf7, 0xb6, 0xce, 0x95, 0x9c,
+        0x54, 0x1d, 0x3a, 0xdb, 0x02, 0x00, 0x01, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x04, 0x00, 0x01, 0x00,
+        0x12, 0xa5, 0xdd, 0xc5, 0x55, 0xce, 0xc3, 0x46,
+        0xbd, 0xa0, 0x94, 0x39, 0x3c, 0x0d, 0x9b, 0x5b,
+        0x00, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x05, 0x00, 0x01, 0x00, 0x87, 0x1c, 0x8b, 0x6e,
+        0x11, 0xa8, 0x67, 0x98, 0xd4, 0x5d, 0xf6, 0x8a,
+        0x2f, 0x33, 0x24, 0x7b, 0x05, 0x00, 0x03, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x06, 0x00, 0x01, 0x00,
+        0x9b, 0x82, 0x13, 0xd1, 0x28, 0xe0, 0x63, 0xf3,
+        0x62, 0xee, 0x76, 0x73, 0xf9, 0xac, 0x3d, 0x2e,
+        0x03, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x07, 0x00, 0x01, 0x00, 0xa9, 0xd4, 0x73, 0xf2,
+        0xed, 0xad, 0xe8, 0x82, 0xf8, 0xcf, 0x9d, 0x9f,
+        0x66, 0xe6, 0x43, 0x37, 0x02, 0x00, 0x01, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x08, 0x00, 0x01, 0x00,
+        0x06, 0x2b, 0x85, 0x38, 0x4f, 0x73, 0x96, 0xb1,
+        0x73, 0xe1, 0x59, 0xbe, 0x9d, 0xe2, 0x6c, 0x07,
+        0x05, 0x00, 0x01, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x09, 0x00, 0x01, 0x00, 0xbf, 0xfa, 0xbb, 0xa4,
+        0x9e, 0x5c, 0x80, 0x61, 0xb5, 0x8b, 0x79, 0x69,
+        0xa6, 0x32, 0x88, 0x77, 0x01, 0x00, 0x01, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x01, 0x00,
+        0x39, 0xa8, 0x2c, 0x39, 0x73, 0x50, 0x06, 0x8d,
+        0xf2, 0x37, 0x1e, 0x1e, 0xa8, 0x8f, 0x46, 0x98,
+        0x02, 0x00, 0x02, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x0b, 0x00, 0x01, 0x00, 0x91, 0x13, 0xd0, 0xa7,
+        0xef, 0xc4, 0xa7, 0x96, 0x0c, 0x4a, 0x0d, 0x29,
+        0x80, 0xd3, 0xfe, 0xbf, 0x00, 0x00, 0x01, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x01, 0x00,
+        0xcc, 0x2b, 0x55, 0x1d, 0xd4, 0xa4, 0x0d, 0xfb,
+        0xcb, 0x6f, 0x86, 0x36, 0xa6, 0x57, 0xc3, 0x21,
+        0x02, 0x00, 0x01, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x0d, 0x00, 0x01, 0x00, 0x43, 0x7b, 0x07, 0xee,
+        0x85, 0xa8, 0xb9, 0x3a, 0x0f, 0xf9, 0x83, 0x70,
+        0xe6, 0x0b, 0x4f, 0x33, 0x02, 0x00, 0x02, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x01, 0x00,
+        0x9c, 0x6a, 0x15, 0x8c, 0xd6, 0x9c, 0xa6, 0xc3,
+        0xb2, 0x9e, 0x62, 0x9f, 0x3d, 0x8e, 0x47, 0x73,
+        0x02, 0x00, 0x02, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x0f, 0x00, 0x01, 0x00, 0xc8, 0x4f, 0x32, 0x4b,
+        0x70, 0x16, 0xd3, 0x01, 0x12, 0x78, 0x5a, 0x47,
+        0xbf, 0x6e, 0xe1, 0x88, 0x03, 0x00, 0x00, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t bind2_len = sizeof(bind2);
+
+    uint8_t bind_ack2[] = {
+        0x05, 0x00, 0x0c, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0xac, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0xb8, 0x10, 0xb8, 0x10, 0xc2, 0x2b, 0x00, 0x00,
+        0x0e, 0x00, 0x5c, 0x50, 0x49, 0x50, 0x45, 0x5c,
+        0x62, 0x72, 0x6f, 0x77, 0x73, 0x65, 0x72, 0x00,
+        0x10, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t bind_ack2_len = sizeof(bind_ack2);
+
+    uint8_t bind3[] = {
+        0x05, 0x00, 0x0b, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x2c, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0xd0, 0x16, 0xd0, 0x16, 0x00, 0x00, 0x00, 0x00,
+        0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+        0xa4, 0x7f, 0x8e, 0xc6, 0xef, 0x56, 0x9b, 0x63,
+        0x92, 0xfa, 0x08, 0xb3, 0x35, 0xe2, 0xa5, 0x81,
+        0x00, 0x00, 0x03, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x01, 0x00, 0x01, 0x00, 0x9f, 0xfc, 0x78, 0xd2,
+        0x5f, 0x16, 0x0b, 0xbc, 0xc6, 0xdb, 0x5d, 0xef,
+        0xde, 0x54, 0xa2, 0x6f, 0x04, 0x00, 0x01, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x78, 0xb8, 0x96, 0xc7, 0x2f, 0xda, 0x11, 0x6b,
+        0xd1, 0x28, 0x68, 0xe1, 0xd6, 0x71, 0xac, 0x9d,
+        0x03, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x03, 0x00, 0x01, 0x00, 0xcf, 0xf4, 0xd7, 0x37,
+        0x03, 0xda, 0xcc, 0xe3, 0x3e, 0x34, 0x7f, 0x67,
+        0x99, 0x91, 0x41, 0x3d, 0x01, 0x00, 0x02, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x04, 0x00, 0x01, 0x00,
+        0x48, 0xeb, 0x32, 0xf0, 0x27, 0xd5, 0x9d, 0xd0,
+        0x1e, 0xc6, 0x48, 0x46, 0x97, 0xe9, 0xdb, 0x09,
+        0x05, 0x00, 0x01, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x05, 0x00, 0x01, 0x00, 0x82, 0xec, 0x0d, 0x08,
+        0xf2, 0x8f, 0x22, 0x57, 0x42, 0x9b, 0xce, 0xa8,
+        0x74, 0x16, 0xc6, 0xec, 0x00, 0x00, 0x01, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x06, 0x00, 0x01, 0x00,
+        0x2e, 0x00, 0x70, 0x44, 0xee, 0xc9, 0x30, 0x6b,
+        0xf4, 0x34, 0x1e, 0x3d, 0x35, 0x0f, 0xf7, 0xf7,
+        0x00, 0x00, 0x01, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x07, 0x00, 0x01, 0x00, 0x59, 0x04, 0x39, 0x3f,
+        0x59, 0x87, 0x14, 0x0e, 0x76, 0x8d, 0x17, 0xc2,
+        0x47, 0xfa, 0x67, 0x7f, 0x04, 0x00, 0x02, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x08, 0x00, 0x01, 0x00,
+        0x30, 0xd6, 0xed, 0x2e, 0x57, 0xfa, 0xf4, 0x72,
+        0x6c, 0x10, 0x0d, 0xe5, 0x51, 0x7f, 0xd0, 0x39,
+        0x02, 0x00, 0x01, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x09, 0x00, 0x01, 0x00, 0xea, 0x8b, 0x84, 0x4d,
+        0x44, 0x43, 0xc1, 0x94, 0x75, 0xe2, 0x81, 0x48,
+        0xd8, 0x77, 0xd9, 0xce, 0x05, 0x00, 0x00, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x01, 0x00,
+        0x89, 0x4f, 0xe7, 0x95, 0xa3, 0xc1, 0x62, 0x36,
+        0x26, 0x9e, 0x67, 0xdb, 0x2c, 0x52, 0x89, 0xd3,
+        0x01, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
+        0x0b, 0x00, 0x01, 0x00, 0x78, 0x56, 0x34, 0x12,
+        0x34, 0x12, 0xcd, 0xab, 0xef, 0x00, 0x01, 0x23,
+        0x45, 0x67, 0x89, 0xab, 0x01, 0x00, 0x00, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t bind3_len = sizeof(bind3);
+
+    uint8_t bind_ack3[] = {
+        0x05, 0x00, 0x0c, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x4c, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0xb8, 0x10, 0xb8, 0x10, 0x1a, 0x33, 0x00, 0x00,
+        0x0e, 0x00, 0x5c, 0x70, 0x69, 0x70, 0x65, 0x5c,
+        0x73, 0x70, 0x6f, 0x6f, 0x6c, 0x73, 0x73, 0x00,
+        0x0c, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t bind_ack3_len = sizeof(bind_ack3);
+
+    TcpSession ssn;
+    DCERPCUuidEntry *item = NULL;
+    int count = 0;
+
+    uint8_t accepted_uuids[3][16] = {
+        {0x4b, 0x32, 0x4f, 0xc8, 0x16, 0x70, 0x01, 0xd3,
+         0x12, 0x78, 0x5a, 0x47, 0xbf, 0x6e, 0xe1, 0x88},
+        {0x4b, 0x32, 0x4f, 0xc8, 0x16, 0x70, 0x01, 0xd3,
+         0x12, 0x78, 0x5a, 0x47, 0xbf, 0x6e, 0xe1, 0x88},
+        {0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0xab, 0xcd,
+         0xef, 0x00, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab}
+    };
+
+    uint16_t accepted_ctxids[3] = {12, 15, 11};
+
+    memset(&f, 0, sizeof(f));
+    memset(&ssn, 0, sizeof(ssn));
+
+    FLOW_INITIALIZE(&f);
+    f.protoctx = (void *)&ssn;
+
+    StreamTcpInitConfig(TRUE);
+    FlowL7DataPtrInit(&f);
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER,
+                      bind1, bind1_len);
+    if (r != 0) {
+        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
+        result = 0;
+        goto end;
+    }
+
+    DCERPCState *dcerpc_state = f.aldata[AlpGetStateIdx(ALPROTO_DCERPC)];
+    if (dcerpc_state == NULL) {
+        printf("no dcerpc state: ");
+        result = 0;
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT,
+                      bind_ack1, bind_ack1_len);
+    if (r != 0) {
+        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
+        result = 0;
+        goto end;
+    }
+
+    count = 0;
+    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.accepted_uuid_list, next) {
+        int i = 0;
+        /* check the interface uuid */
+        for (i = 0; i < 16; i++) {
+            if (accepted_uuids[0][i] != item->uuid[i]) {
+                result = 0;
+                goto end;
+            }
+        }
+        if (accepted_ctxids[0] != item->ctxid) {
+            result = 0;
+            goto end;
+        }
+        count++;
+    }
+    if (count != 1) {
+        result = 0;
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER,
+                      bind2, bind2_len);
+    if (r != 0) {
+        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
+        result = 0;
+        goto end;
+    }
+
+    count = 0;
+    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.accepted_uuid_list, next) {
+        count++;
+    }
+    if (count != 0) {
+        result = 0;
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT,
+                      bind_ack2, bind_ack2_len);
+    if (r != 0) {
+        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
+        result = 0;
+        goto end;
+    }
+
+    count = 0;
+    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.accepted_uuid_list, next) {
+        int i = 0;
+        /* check the interface uuid */
+        for (i = 0; i < 16; i++) {
+            if (accepted_uuids[1][i] != item->uuid[i]) {
+                result = 0;
+                goto end;
+            }
+        }
+        if (accepted_ctxids[1] != item->ctxid) {
+            result = 0;
+            goto end;
+        }
+        count++;
+    }
+    if (count != 1) {
+        result = 0;
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER,
+                      bind3, bind3_len);
+    if (r != 0) {
+        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
+        result = 0;
+        goto end;
+    }
+
+    count = 0;
+    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.accepted_uuid_list, next) {
+        count++;
+    }
+    if (count != 0) {
+        result = 0;
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT,
+                      bind_ack3, bind_ack3_len);
+    if (r != 0) {
+        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
+        result = 0;
+        goto end;
+    }
+
+    count = 0;
+    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.accepted_uuid_list, next) {
+        int i = 0;
+        /* check the interface uuid */
+        for (i = 0; i < 16; i++) {
+            if (accepted_uuids[2][i] != item->uuid[i]) {
+                result = 0;
+                goto end;
+            }
+        }
+        if (accepted_ctxids[2] != item->ctxid) {
+            result = 0;
+            goto end;
+        }
+        count++;
+    }
+    if (count != 1) {
+        result = 0;
+        goto end;
+    }
+
+end:
+    FlowL7DataPtrFree(&f);
+    StreamTcpFreeConfig(TRUE);
+    FLOW_DESTROY(&f);
+    return result;
+}
+
+
+/**
+ * \test Check for correct internal ids for bind_acks + alter_contexts
+ */
+int DCERPCParserTest17(void) {
+    int result = 1;
+    Flow f;
+    int r = 0;
+
+    uint8_t bind[] = {
+        0x05, 0x00, 0x0b, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x48, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0xd0, 0x16, 0xd0, 0x16, 0x00, 0x00, 0x00, 0x00,
+        0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+        0x40, 0xfd, 0x2c, 0x34, 0x6c, 0x3c, 0xce, 0x11,
+        0xa8, 0x93, 0x08, 0x00, 0x2b, 0x2e, 0x9c, 0x6d,
+        0x00, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t bind_len = sizeof(bind);
+
+    uint8_t bind_ack[] = {
+        0x05, 0x00, 0x0c, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x44, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0xb8, 0x10, 0xb8, 0x10, 0x7d, 0xd8, 0x00, 0x00,
+        0x0d, 0x00, 0x5c, 0x70, 0x69, 0x70, 0x65, 0x5c,
+        0x6c, 0x6c, 0x73, 0x72, 0x70, 0x63, 0x00, 0x00,
+        0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t bind_ack_len = sizeof(bind_ack);
+
+    uint8_t alter_context[] = {
+        0x05, 0x00, 0x0e, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x48, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0xd0, 0x16, 0xd0, 0x16, 0x00, 0x00, 0x00, 0x00,
+        0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00,
+        0xd0, 0x4c, 0x67, 0x57, 0x00, 0x52, 0xce, 0x11,
+        0xa8, 0x97, 0x08, 0x00, 0x2b, 0x2e, 0x9c, 0x6d,
+        0x01, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t alter_context_len = sizeof(alter_context);
+
+    uint8_t alter_context_resp[] = {
+        0x05, 0x00, 0x0f, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x38, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0xb8, 0x10, 0xb8, 0x10, 0x7d, 0xd8, 0x00, 0x00,
+        0x00, 0x00, 0x08, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t alter_context_resp_len = sizeof(alter_context_resp);
+
+
+    TcpSession ssn;
+    DCERPCUuidEntry *item = NULL;
+    int count = 0;
+
+    uint8_t accepted_uuids[2][16] = {
+        {0x57, 0x67, 0x4c, 0xd0, 0x52, 0x00, 0x11, 0xce,
+         0xa8, 0x97, 0x08, 0x00, 0x2b, 0x2e, 0x9c, 0x6d},
+        {0x34, 0x2c, 0xfd, 0x40, 0x3c, 0x6c, 0x11, 0xce,
+         0xa8, 0x93, 0x08, 0x00, 0x2b, 0x2e, 0x9c, 0x6d},
+    };
+
+    uint16_t accepted_ctxids[2] = {1, 0};
+
+    memset(&f, 0, sizeof(f));
+    memset(&ssn, 0, sizeof(ssn));
+
+    FLOW_INITIALIZE(&f);
+    f.protoctx = (void *)&ssn;
+
+    StreamTcpInitConfig(TRUE);
+    FlowL7DataPtrInit(&f);
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER,
+                      bind, bind_len);
+    if (r != 0) {
+        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
+        result = 0;
+        goto end;
+    }
+
+    DCERPCState *dcerpc_state = f.aldata[AlpGetStateIdx(ALPROTO_DCERPC)];
+    if (dcerpc_state == NULL) {
+        printf("no dcerpc state: ");
+        result = 0;
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT,
+                      bind_ack, bind_ack_len);
+    if (r != 0) {
+        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
+        result = 0;
+        goto end;
+    }
+
+    count = 0;
+    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.accepted_uuid_list, next) {
+        int i = 0;
+        /* check the interface uuid */
+        for (i = 0; i < 16; i++) {
+            if (accepted_uuids[1][i] != item->uuid[i]) {
+                result = 0;
+                goto end;
+            }
+        }
+        if (accepted_ctxids[1] != item->ctxid) {
+            result = 0;
+            goto end;
+        }
+        count++;
+    }
+    if (count != 1) {
+        result = 0;
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER,
+                      alter_context, alter_context_len);
+    if (r != 0) {
+        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
+        result = 0;
+        goto end;
+    }
+
+    count = 0;
+    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.accepted_uuid_list, next) {
+        count++;
+    }
+    if (count != 1) {
+        result = 0;
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT,
+                      alter_context_resp, alter_context_resp_len);
+    if (r != 0) {
+        printf("dcerpc header check returned %" PRId32 ", expected 0: ", r);
+        result = 0;
+        goto end;
+    }
+
+    count = 0;
+    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.accepted_uuid_list, next) {
+        int i = 0;
+        /* check the interface uuid */
+        for (i = 0; i < 16; i++) {
+            if (accepted_uuids[count][i] != item->uuid[i]) {
+                result = 0;
+                goto end;
+            }
+        }
+        if (accepted_ctxids[count] != item->ctxid) {
+            result = 0;
+            goto end;
+        }
+        count++;
+    }
+    if (count != 2) {
+        result = 0;
+        goto end;
+    }
+
+end:
+    FlowL7DataPtrFree(&f);
+    StreamTcpFreeConfig(TRUE);
+    FLOW_DESTROY(&f);
+    return result;
+}
+
 #endif /* UNITTESTS */

 void DCERPCParserRegisterTests(void) {
@ -4661,6 +5481,8 @@ void DCERPCParserRegisterTests(void) {
    UtRegisterTest("DCERPCParserTest13", DCERPCParserTest13, 1);
    UtRegisterTest("DCERPCParserTest14", DCERPCParserTest14, 1);
    UtRegisterTest("DCERPCParserTest15", DCERPCParserTest15, 1);
+    UtRegisterTest("DCERPCParserTest16", DCERPCParserTest16, 1);
+    UtRegisterTest("DCERPCParserTest17", DCERPCParserTest17, 1);
 #endif /* UNITTESTS */

    return;
--- a/src/detect-dce-iface.c
+++ b/src/detect-dce-iface.c
@ -274,7 +274,7 @@ static inline int DetectDceIfaceMatchIfaceVersion(uint16_t version,
 int DetectDceIfaceMatch(ThreadVars *t, DetectEngineThreadCtx *det_ctx, Flow *f,
                        uint8_t flags, void *state, Signature *s, SigMatch *m)
 {
-    int ret = 1;
+    int ret = 0;
    DCERPCUuidEntry *item = NULL;
    int i = 0;
    DetectDceIfaceData *dce_data = (DetectDceIfaceData *)m->ctx;
@ -286,21 +286,27 @@ int DetectDceIfaceMatch(ThreadVars *t, DetectEngineThreadCtx *det_ctx, Flow *f,

    SCMutexLock(&f->m);

+    /* we still haven't seen a request */
+    if (!dcerpc_state->dcerpc.dcerpcrequest.first_request_seen)
+        goto end;
+
+    if (!(dcerpc_state->dcerpc.dcerpchdr.type == REQUEST))
+        goto end;
+
    /* if any_frag is not enabled, we need to match only against the first
     * fragment */
    if (!dce_data->any_frag &&
        !(dcerpc_state->dcerpc.dcerpchdr.pfc_flags & PFC_FIRST_FRAG)) {
        /* any_frag has not been set, and apparently it's not the first fragment */
-        ret = 0;
        goto end;
    }

-    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.uuid_list, next) {
+    TAILQ_FOREACH(item, &dcerpc_state->dcerpc.dcerpcbindbindack.accepted_uuid_list, next) {
        ret = 1;

        /* if the uuid has been rejected(item->result == 1), we skip to the
         * next uuid */
-        if (item->result == 1)
+        if (item->result != 0)
            continue;

        /* check the interface uuid */
@ -310,6 +316,9 @@ int DetectDceIfaceMatch(ThreadVars *t, DetectEngineThreadCtx *det_ctx, Flow *f,
                break;
            }
        }
+        ret &= (item->ctxid == dcerpc_state->dcerpc.dcerpcrequest.ctxid);
+        if (ret == 0)
+            continue;

        /* check the interface version */
        if (dce_data->op != DETECT_DCE_IFACE_OP_NONE &&
@ -837,8 +846,16 @@ static int DetectDceIfaceTestParse12(void)
        0x02, 0x00, 0x00, 0x00
    };

+    uint8_t dcerpc_request[] = {
+        0x05, 0x00, 0x00, 0x01, 0x10, 0x00, 0x00, 0x00,
+        0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x09, 0x00,
+        0xad, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    };
+
    uint32_t dcerpc_bind_len = sizeof(dcerpc_bind);
    uint32_t dcerpc_bindack_len = sizeof(dcerpc_bindack);
+    uint32_t dcerpc_request_len = sizeof(dcerpc_request);

    memset(&th_v, 0, sizeof(th_v));
    memset(&f, 0, sizeof(f));
@ -890,7 +907,7 @@ static int DetectDceIfaceTestParse12(void)
    /* do detect */
    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);

-    if (!(PacketAlertCheck(p, 1))) {
+    if (PacketAlertCheck(p, 1)) {
        printf("sid 1 didn't match (1): ");
        goto end;
    }
@ -912,6 +929,21 @@ static int DetectDceIfaceTestParse12(void)
        goto end;
    }

+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_request,
+                      dcerpc_request_len);
+    if (r != 0) {
+        SCLogDebug("AppLayerParse for dcerpc failed.  Returned %" PRId32, r);
+        goto end;
+    }
+
+    /* do detect */
+    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
+
+    if (!PacketAlertCheck(p, 1)) {
+        printf("sid 1 matched, but shouldn't have: ");
+        goto end;
+    }
+
    result = 1;

 end:
@ -1106,7 +1138,7 @@ static int DetectDceIfaceTestParse13(void)
    /* do detect */
    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);

-    if (!(PacketAlertCheck(p, 1))) {
+    if (PacketAlertCheck(p, 1)) {
        printf("sig 1 didn't match after bind request: ");
        goto end;
    }
@ -1299,8 +1331,16 @@ static int DetectDceIfaceTestParse14(void)
        0x02, 0x00, 0x00, 0x00
    };

+    uint8_t dcerpc_request[] = {
+        0x05, 0x00, 0x00, 0x01, 0x10, 0x00, 0x00, 0x00,
+        0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x09, 0x00,
+        0xad, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    };
+
    uint32_t dcerpc_bind_len = sizeof(dcerpc_bind);
    uint32_t dcerpc_bindack_len = sizeof(dcerpc_bindack);
+    uint32_t dcerpc_request_len = sizeof(dcerpc_request);

    memset(&th_v, 0, sizeof(th_v));
    memset(&p, 0, sizeof(p));
@ -1351,7 +1391,206 @@ static int DetectDceIfaceTestParse14(void)
    /* do detect */
    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);

-    if (!PacketAlertCheck(p, 1))
+    if (PacketAlertCheck(p, 1))
+        goto end;
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_bindack,
+                      dcerpc_bindack_len);
+    if (r != 0) {
+        SCLogDebug("AppLayerParse for dcerpc failed.  Returned %" PRId32, r);
+        goto end;
+    }
+
+    /* do detect */
+    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
+
+    if (PacketAlertCheck(p, 1)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_request,
+                      dcerpc_request_len);
+    if (r != 0) {
+        SCLogDebug("AppLayerParse for dcerpc failed.  Returned %" PRId32, r);
+        goto end;
+    }
+
+    /* do detect */
+    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
+
+    if (!PacketAlertCheck(p, 1)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+
+    result = 1;
+
+ end:
+    SigGroupCleanup(de_ctx);
+    SigCleanSignatures(de_ctx);
+
+    DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
+    DetectEngineCtxFree(de_ctx);
+
+    FlowL7DataPtrFree(&f);
+    StreamTcpFreeConfig(TRUE);
+    FLOW_DESTROY(&f);
+    UTHFreePackets(&p, 1);
+    return result;
+}
+
+/**
+ * \test Test a valid dce_iface entry for a bind and bind_ack
+ */
+static int DetectDceIfaceTestParse15(void)
+{
+    int result = 0;
+    Signature *s = NULL;
+    ThreadVars th_v;
+    Packet *p = NULL;
+    Flow f;
+    TcpSession ssn;
+    DetectEngineThreadCtx *det_ctx = NULL;
+    DetectEngineCtx *de_ctx = NULL;
+    DCERPCState *dcerpc_state = NULL;
+    int r = 0;
+
+    uint8_t dcerpc_bind[] = {
+        0x05, 0x00, 0x0b, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x48, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0xd0, 0x16, 0xd0, 0x16, 0x00, 0x00, 0x00, 0x00,
+        0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+        0x40, 0xfd, 0x2c, 0x34, 0x6c, 0x3c, 0xce, 0x11,
+        0xa8, 0x93, 0x08, 0x00, 0x2b, 0x2e, 0x9c, 0x6d,
+        0x00, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t dcerpc_bind_len = sizeof(dcerpc_bind);
+
+    uint8_t dcerpc_bindack[] = {
+        0x05, 0x00, 0x0c, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x44, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0xb8, 0x10, 0xb8, 0x10, 0x7d, 0xd8, 0x00, 0x00,
+        0x0d, 0x00, 0x5c, 0x70, 0x69, 0x70, 0x65, 0x5c,
+        0x6c, 0x6c, 0x73, 0x72, 0x70, 0x63, 0x00, 0x00,
+        0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
+        0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
+        0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t dcerpc_bindack_len = sizeof(dcerpc_bindack);
+
+    uint8_t dcerpc_alter_context[] = {
+        0x05, 0x00, 0x0e, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x48, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0xd0, 0x16, 0xd0, 0x16, 0x00, 0x00, 0x00, 0x00,
+        0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00,
+        0xd0, 0x4c, 0x67, 0x57, 0x00, 0x52, 0xce, 0x11,
+        0xa8, 0x97, 0x08, 0x00, 0x2b, 0x2e, 0x9c, 0x6d,
+        0x01, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t dcerpc_alter_context_len = sizeof(dcerpc_alter_context);
+
+    uint8_t dcerpc_alter_context_resp[] = {
+        0x05, 0x00, 0x0f, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x38, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0xb8, 0x10, 0xb8, 0x10, 0x7d, 0xd8, 0x00, 0x00,
+        0x00, 0x00, 0x08, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
+        0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
+        0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00
+    };
+    uint32_t dcerpc_alter_context_resp_len = sizeof(dcerpc_alter_context_resp);
+
+    uint8_t dcerpc_request1[] = {
+        0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x20, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0x20, 0x03, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0xdd, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    };
+    uint32_t dcerpc_request1_len = sizeof(dcerpc_request1);
+
+    uint8_t dcerpc_response1[] = {
+        0x05, 0x00, 0x02, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x30, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0xf5, 0x66, 0xbf, 0x54,
+        0xc4, 0xdb, 0xdb, 0x4f, 0xa0, 0x01, 0x6d, 0xf4,
+        0xf6, 0xa8, 0x44, 0xb3, 0x00, 0x00, 0x00, 0x00
+    };
+    uint32_t dcerpc_response1_len = sizeof(dcerpc_response1);
+
+    uint8_t dcerpc_request2[] = {
+        0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00,
+        0x20, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x07, 0x9f, 0x13, 0xd9,
+    };
+    uint32_t dcerpc_request2_len = sizeof(dcerpc_request2);
+
+    memset(&th_v, 0, sizeof(th_v));
+    memset(&p, 0, sizeof(p));
+    memset(&f, 0, sizeof(f));
+    memset(&ssn, 0, sizeof(ssn));
+
+    p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
+
+    FLOW_INITIALIZE(&f);
+    f.protoctx = (void *)&ssn;
+    p->flow = &f;
+    p->flowflags |= FLOW_PKT_TOSERVER;
+    p->flowflags |= FLOW_PKT_ESTABLISHED;
+    f.alproto = ALPROTO_DCERPC;
+
+    StreamTcpInitConfig(TRUE);
+    FlowL7DataPtrInit(&f);
+
+    de_ctx = DetectEngineCtxInit();
+    if (de_ctx == NULL)
+        goto end;
+
+    de_ctx->flags |= DE_QUIET;
+
+    s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any "
+                              "(msg:\"DCERPC\"; "
+                              "dce_iface:57674cd0-5200-11ce-a897-08002b2e9c6d; "
+                              "sid:1;)");
+    if (s == NULL)
+        goto end;
+
+    s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any "
+                              "(msg:\"DCERPC\"; "
+                              "dce_iface:342cfd40-3c6c-11ce-a893-08002b2e9c6d; "
+                              "sid:2;)");
+    if (s == NULL)
+        goto end;
+
+    SigGroupBuild(de_ctx);
+    DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER | STREAM_START,
+                      dcerpc_bind, dcerpc_bind_len);
+    if (r != 0) {
+        SCLogDebug("AppLayerParse for dcerpc failed.  Returned %" PRId32, r);
+        goto end;
+    }
+
+    dcerpc_state = f.aldata[AlpGetStateIdx(ALPROTO_DCERPC)];
+    if (dcerpc_state == NULL) {
+        SCLogDebug("no dcerpc state: ");
+        goto end;
+    }
+
+    /* do detect */
+    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
+
+    if (PacketAlertCheck(p, 1))
+        goto end;
+    if (PacketAlertCheck(p, 2))
        goto end;

    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_bindack,
@ -1368,6 +1607,105 @@ static int DetectDceIfaceTestParse14(void)
        printf("sig 1 matched but shouldn't have: ");
        goto end;
    }
+    if (PacketAlertCheck(p, 2)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER, dcerpc_alter_context,
+                      dcerpc_alter_context_len);
+    if (r != 0) {
+        SCLogDebug("AppLayerParse for dcerpc failed.  Returned %" PRId32, r);
+        goto end;
+    }
+
+    /* do detect */
+    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
+
+    if (PacketAlertCheck(p, 1)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+    if (PacketAlertCheck(p, 2)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_alter_context_resp,
+                      dcerpc_alter_context_resp_len);
+    if (r != 0) {
+        SCLogDebug("AppLayerParse for dcerpc failed.  Returned %" PRId32, r);
+        goto end;
+    }
+
+    /* do detect */
+    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
+
+    if (PacketAlertCheck(p, 1)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+    if (PacketAlertCheck(p, 2)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER, dcerpc_request1,
+                      dcerpc_request1_len);
+    if (r != 0) {
+        SCLogDebug("AppLayerParse for dcerpc failed.  Returned %" PRId32, r);
+        goto end;
+    }
+
+    /* do detect */
+    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
+
+    if (!PacketAlertCheck(p, 1)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+    if (PacketAlertCheck(p, 2)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_response1,
+                      dcerpc_response1_len);
+    if (r != 0) {
+        SCLogDebug("AppLayerParse for dcerpc failed.  Returned %" PRId32, r);
+        goto end;
+    }
+
+    /* do detect */
+    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
+
+    if (PacketAlertCheck(p, 1)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+    if (PacketAlertCheck(p, 2)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+
+    r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER, dcerpc_request2,
+                      dcerpc_request2_len);
+    if (r != 0) {
+        SCLogDebug("AppLayerParse for dcerpc failed.  Returned %" PRId32, r);
+        goto end;
+    }
+
+    /* do detect */
+    SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
+
+    if (PacketAlertCheck(p, 1)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }
+    if (!PacketAlertCheck(p, 2)) {
+        printf("sig 1 matched but shouldn't have: ");
+        goto end;
+    }

    result = 1;

@ -1405,6 +1743,7 @@ void DetectDceIfaceRegisterTests(void)
    UtRegisterTest("DetectDceIfaceTestParse12", DetectDceIfaceTestParse12, 1);
    UtRegisterTest("DetectDceIfaceTestParse13", DetectDceIfaceTestParse13, 1);
    UtRegisterTest("DetectDceIfaceTestParse14", DetectDceIfaceTestParse14, 1);
+    UtRegisterTest("DetectDceIfaceTestParse15", DetectDceIfaceTestParse15, 1);
 #endif

    return;
--- a/src/detect-engine-dcepayload.c
+++ b/src/detect-engine-dcepayload.c
@ -2516,11 +2516,11 @@ int DcePayloadTest02(void)
    }
    /* detection phase */
    SigMatchSignatures(&tv, de_ctx, det_ctx, p[0]);
-    if (!(PacketAlertCheck(p[0], 1))) {
+    if (PacketAlertCheck(p[0], 1)) {
        printf("sid 1 didn't match but should have for packet 0: ");
        goto end;
    }
-    if ((PacketAlertCheck(p[0], 2))) {
+    if (PacketAlertCheck(p[0], 2)) {
        printf("sid 2 matched but shouldn't have for packet 0: ");
        goto end;
    }