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      1 /******************************************************************************
      2  *
      3  *  Copyright (C) 1999-2012 Broadcom Corporation
      4  *
      5  *  Licensed under the Apache License, Version 2.0 (the "License");
      6  *  you may not use this file except in compliance with the License.
      7  *  You may obtain a copy of the License at:
      8  *
      9  *  http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  *
     17  ******************************************************************************/
     18 
     19 /******************************************************************************
     20  *
     21  *  this file contains functions that handle the database
     22  *
     23  ******************************************************************************/
     24 
     25 #include <stdlib.h>
     26 #include <string.h>
     27 #include <stdio.h>
     28 
     29 #include "bt_target.h"
     30 
     31 #include "gki.h"
     32 
     33 #include "l2cdefs.h"
     34 #include "hcidefs.h"
     35 #include "hcimsgs.h"
     36 
     37 #include "sdp_api.h"
     38 #include "sdpint.h"
     39 
     40 #if SDP_SERVER_ENABLED == TRUE
     41 /********************************************************************************/
     42 /*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
     43 /********************************************************************************/
     44 static BOOLEAN find_uuid_in_seq (UINT8 *p , UINT32 seq_len, UINT8 *p_his_uuid,
     45                                  UINT16 his_len, int nest_level);
     46 
     47 
     48 /*******************************************************************************
     49 **
     50 ** Function         sdp_db_service_search
     51 **
     52 ** Description      This function searches for a record that contains the
     53 **                  specified UIDs. It is passed either NULL to start at the
     54 **                  beginning, or the previous record found.
     55 **
     56 ** Returns          Pointer to the record, or NULL if not found.
     57 **
     58 *******************************************************************************/
     59 tSDP_RECORD *sdp_db_service_search (tSDP_RECORD *p_rec, tSDP_UUID_SEQ *p_seq)
     60 {
     61     UINT16          xx, yy;
     62     tSDP_ATTRIBUTE *p_attr;
     63     tSDP_RECORD     *p_end = &sdp_cb.server_db.record[sdp_cb.server_db.num_records];
     64 
     65     /* If NULL, start at the beginning, else start at the first specified record */
     66     if (!p_rec)
     67         p_rec = &sdp_cb.server_db.record[0];
     68     else
     69         p_rec++;
     70 
     71     /* Look through the records. The spec says that a match occurs if */
     72     /* the record contains all the passed UUIDs in it.                */
     73     for ( ; p_rec < p_end; p_rec++)
     74     {
     75         for (yy = 0; yy < p_seq->num_uids; yy++)
     76         {
     77             p_attr = &p_rec->attribute[0];
     78             for (xx = 0; xx < p_rec->num_attributes; xx++, p_attr++)
     79             {
     80                 if (p_attr->type == UUID_DESC_TYPE)
     81                 {
     82                     if (sdpu_compare_uuid_arrays (p_attr->value_ptr, p_attr->len,
     83                                                   &p_seq->uuid_entry[yy].value[0],
     84                                                   p_seq->uuid_entry[yy].len))
     85                         break;
     86                 }
     87                 else if (p_attr->type == DATA_ELE_SEQ_DESC_TYPE)
     88                 {
     89                     if (find_uuid_in_seq (p_attr->value_ptr, p_attr->len,
     90                                           &p_seq->uuid_entry[yy].value[0],
     91                                           p_seq->uuid_entry[yy].len, 0))
     92                         break;
     93                 }
     94             }
     95             /* If any UUID was not found,  on to the next record */
     96             if (xx == p_rec->num_attributes)
     97                 break;
     98         }
     99 
    100         /* If every UUID was found in the record, return the record */
    101         if (yy == p_seq->num_uids)
    102             return (p_rec);
    103     }
    104 
    105     /* If here, no more records found */
    106     return (NULL);
    107 }
    108 
    109 /*******************************************************************************
    110 **
    111 ** Function         find_uuid_in_seq
    112 **
    113 ** Description      This function searches a data element sequenct for a UUID.
    114 **
    115 ** Returns          TRUE if found, else FALSE
    116 **
    117 *******************************************************************************/
    118 static BOOLEAN find_uuid_in_seq (UINT8 *p , UINT32 seq_len, UINT8 *p_uuid,
    119                                  UINT16 uuid_len, int nest_level)
    120 {
    121     UINT8   *p_end = p + seq_len;
    122     UINT8   type;
    123     UINT32  len;
    124 
    125     /* A little safety check to avoid excessive recursion */
    126     if (nest_level > 3)
    127         return (FALSE);
    128 
    129     while (p < p_end)
    130     {
    131         type = *p++;
    132         p = sdpu_get_len_from_type (p, type, &len);
    133         type = type >> 3;
    134         if (type == UUID_DESC_TYPE)
    135         {
    136             if (sdpu_compare_uuid_arrays (p, len, p_uuid, uuid_len))
    137                 return (TRUE);
    138         }
    139         else if (type == DATA_ELE_SEQ_DESC_TYPE)
    140         {
    141             if (find_uuid_in_seq (p, len, p_uuid, uuid_len, nest_level + 1))
    142                 return (TRUE);
    143         }
    144         p = p + len;
    145     }
    146 
    147     /* If here, failed to match */
    148     return (FALSE);
    149 }
    150 
    151 /*******************************************************************************
    152 **
    153 ** Function         sdp_db_find_record
    154 **
    155 ** Description      This function searches for a record with a specific handle
    156 **                  It is passed the handle of the record.
    157 **
    158 ** Returns          Pointer to the record, or NULL if not found.
    159 **
    160 *******************************************************************************/
    161 tSDP_RECORD *sdp_db_find_record (UINT32 handle)
    162 {
    163     tSDP_RECORD     *p_rec;
    164     tSDP_RECORD     *p_end = &sdp_cb.server_db.record[sdp_cb.server_db.num_records];
    165 
    166     /* Look through the records for the caller's handle */
    167     for (p_rec = &sdp_cb.server_db.record[0]; p_rec < p_end; p_rec++)
    168     {
    169         if (p_rec->record_handle == handle)
    170             return (p_rec);
    171     }
    172 
    173     /* Record with that handle not found. */
    174     return (NULL);
    175 }
    176 
    177 /*******************************************************************************
    178 **
    179 ** Function         sdp_db_find_attr_in_rec
    180 **
    181 ** Description      This function searches a record for specific attributes.
    182 **                  It is passed a pointer to the record. If the record contains
    183 **                  the specified attribute, (the caller may specify be a range
    184 **                  of attributes), the attribute is returned.
    185 **
    186 ** Returns          Pointer to the attribute, or NULL if not found.
    187 **
    188 *******************************************************************************/
    189 tSDP_ATTRIBUTE *sdp_db_find_attr_in_rec (tSDP_RECORD *p_rec, UINT16 start_attr,
    190                                          UINT16 end_attr)
    191 {
    192     tSDP_ATTRIBUTE  *p_at;
    193     UINT16          xx;
    194 
    195     /* Note that the attributes in a record are assumed to be in sorted order */
    196     for (xx = 0, p_at = &p_rec->attribute[0]; xx < p_rec->num_attributes;
    197          xx++, p_at++)
    198     {
    199         if ((p_at->id >= start_attr) && (p_at->id <= end_attr))
    200             return (p_at);
    201     }
    202 
    203     /* No matching attribute found */
    204     return (NULL);
    205 }
    206 
    207 
    208 /*******************************************************************************
    209 **
    210 ** Function         sdp_compose_proto_list
    211 **
    212 ** Description      This function is called to compose a data sequence from
    213 **                  protocol element list struct pointer
    214 **
    215 ** Returns          the length of the data sequence
    216 **
    217 *******************************************************************************/
    218 static int sdp_compose_proto_list( UINT8 *p, UINT16 num_elem,
    219                                   tSDP_PROTOCOL_ELEM *p_elem_list)
    220 {
    221     UINT16          xx, yy, len;
    222     BOOLEAN            is_rfcomm_scn;
    223     UINT8           *p_head = p;
    224     UINT8            *p_len;
    225 
    226     /* First, build the protocol list. This consists of a set of data element
    227     ** sequences, one for each layer. Each layer sequence consists of layer's
    228     ** UUID and optional parameters
    229     */
    230     for (xx = 0; xx < num_elem; xx++, p_elem_list++)
    231     {
    232         len = 3 + (p_elem_list->num_params * 3);
    233         UINT8_TO_BE_STREAM  (p, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
    234 
    235         p_len = p;
    236         *p++ = (UINT8) len;
    237 
    238         UINT8_TO_BE_STREAM  (p, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
    239         UINT16_TO_BE_STREAM (p, p_elem_list->protocol_uuid);
    240 
    241         if (p_elem_list->protocol_uuid == UUID_PROTOCOL_RFCOMM)
    242             is_rfcomm_scn = TRUE;
    243         else
    244             is_rfcomm_scn = FALSE;
    245 
    246         for (yy = 0; yy < p_elem_list->num_params; yy++)
    247         {
    248             if (is_rfcomm_scn)
    249             {
    250                 UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_ONE_BYTE);
    251                 UINT8_TO_BE_STREAM (p, p_elem_list->params[yy]);
    252 
    253                 *p_len -= 1;
    254             }
    255             else
    256             {
    257                 UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
    258                 UINT16_TO_BE_STREAM (p, p_elem_list->params[yy]);
    259             }
    260         }
    261     }
    262     return (p - p_head);
    263 }
    264 
    265 #endif  /* SDP_SERVER_ENABLED == TRUE */
    266 
    267 /*******************************************************************************
    268 **
    269 ** Function         SDP_CreateRecord
    270 **
    271 ** Description      This function is called to create a record in the database.
    272 **                  This would be through the SDP database maintenance API. The
    273 **                  record is created empty, teh application should then call
    274 **                  "add_attribute" to add the record's attributes.
    275 **
    276 ** Returns          Record handle if OK, else 0.
    277 **
    278 *******************************************************************************/
    279 UINT32 SDP_CreateRecord (void)
    280 {
    281 #if SDP_SERVER_ENABLED == TRUE
    282     UINT32    handle;
    283     UINT8     buf[4];
    284     tSDP_DB  *p_db = &sdp_cb.server_db;
    285 
    286     /* First, check if there is a free record */
    287     if (p_db->num_records < SDP_MAX_RECORDS)
    288     {
    289         memset (&p_db->record[p_db->num_records], 0,
    290                 sizeof (tSDP_RECORD));
    291 
    292         /* We will use a handle of the first unreserved handle plus last record
    293         ** number + 1 */
    294         if (p_db->num_records)
    295             handle = p_db->record[p_db->num_records - 1].record_handle + 1;
    296         else
    297             handle = 0x10000;
    298 
    299         p_db->record[p_db->num_records].record_handle = handle;
    300 
    301         p_db->num_records++;
    302         SDP_TRACE_DEBUG("SDP_CreateRecord ok, num_records:%d", p_db->num_records);
    303         /* Add the first attribute (the handle) automatically */
    304         UINT32_TO_BE_FIELD (buf, handle);
    305         SDP_AddAttribute (handle, ATTR_ID_SERVICE_RECORD_HDL, UINT_DESC_TYPE,
    306                           4, buf);
    307 
    308         return (p_db->record[p_db->num_records - 1].record_handle);
    309     }
    310     else SDP_TRACE_ERROR("SDP_CreateRecord fail, exceed maximum records:%d", SDP_MAX_RECORDS);
    311 #endif
    312         return (0);
    313 }
    314 
    315 
    316 /*******************************************************************************
    317 **
    318 ** Function         SDP_DeleteRecord
    319 **
    320 ** Description      This function is called to add a record (or all records)
    321 **                  from the database. This would be through the SDP database
    322 **                  maintenance API.
    323 **
    324 **                  If a record handle of 0 is passed, all records are deleted.
    325 **
    326 ** Returns          TRUE if succeeded, else FALSE
    327 **
    328 *******************************************************************************/
    329 BOOLEAN SDP_DeleteRecord (UINT32 handle)
    330 {
    331 #if SDP_SERVER_ENABLED == TRUE
    332     UINT16          xx, yy, zz;
    333     tSDP_RECORD     *p_rec = &sdp_cb.server_db.record[0];
    334 
    335     if (handle == 0 || sdp_cb.server_db.num_records == 0)
    336     {
    337         /* Delete all records in the database */
    338         sdp_cb.server_db.num_records = 0;
    339 
    340         /* require new DI record to be created in SDP_SetLocalDiRecord */
    341         sdp_cb.server_db.di_primary_handle = 0;
    342 
    343         return (TRUE);
    344     }
    345     else
    346     {
    347         /* Find the record in the database */
    348         for (xx = 0; xx < sdp_cb.server_db.num_records; xx++, p_rec++)
    349         {
    350             if (p_rec->record_handle == handle)
    351             {
    352                 /* Found it. Shift everything up one */
    353                 for (yy = xx; yy < sdp_cb.server_db.num_records; yy++, p_rec++)
    354                 {
    355                     *p_rec = *(p_rec + 1);
    356 
    357                     /* Adjust the attribute value pointer for each attribute */
    358                     for (zz = 0; zz < p_rec->num_attributes; zz++)
    359                         p_rec->attribute[zz].value_ptr -= sizeof(tSDP_RECORD);
    360                 }
    361 
    362                 sdp_cb.server_db.num_records--;
    363 
    364                 SDP_TRACE_DEBUG("SDP_DeleteRecord ok, num_records:%d", sdp_cb.server_db.num_records);
    365                 /* if we're deleting the primary DI record, clear the */
    366                 /* value in the control block */
    367                 if( sdp_cb.server_db.di_primary_handle == handle )
    368                 {
    369                     sdp_cb.server_db.di_primary_handle = 0;
    370                 }
    371 
    372                 return (TRUE);
    373             }
    374         }
    375     }
    376 #endif
    377     return (FALSE);
    378 }
    379 
    380 
    381 /*******************************************************************************
    382 **
    383 ** Function         SDP_AddAttribute
    384 **
    385 ** Description      This function is called to add an attribute to a record.
    386 **                  This would be through the SDP database maintenance API.
    387 **                  If the attribute already exists in the record, it is replaced
    388 **                  with the new value.
    389 **
    390 ** NOTE             Attribute values must be passed as a Big Endian stream.
    391 **
    392 ** Returns          TRUE if added OK, else FALSE
    393 **
    394 *******************************************************************************/
    395 BOOLEAN SDP_AddAttribute (UINT32 handle, UINT16 attr_id, UINT8 attr_type,
    396                           UINT32 attr_len, UINT8 *p_val)
    397 {
    398 #if SDP_SERVER_ENABLED == TRUE
    399     UINT16          xx, yy, zz;
    400     tSDP_RECORD     *p_rec = &sdp_cb.server_db.record[0];
    401 
    402 #if (BT_TRACE_VERBOSE == TRUE)
    403     if (sdp_cb.trace_level >= BT_TRACE_LEVEL_DEBUG)
    404     {
    405         if ((attr_type == UINT_DESC_TYPE) ||
    406             (attr_type == TWO_COMP_INT_DESC_TYPE) ||
    407             (attr_type == UUID_DESC_TYPE) ||
    408             (attr_type == DATA_ELE_SEQ_DESC_TYPE) ||
    409             (attr_type == DATA_ELE_ALT_DESC_TYPE))
    410         {
    411             UINT8 num_array[400];
    412             UINT32 i;
    413             UINT32 len = (attr_len > 200) ? 200 : attr_len;
    414 
    415             num_array[0] ='\0';
    416             for (i = 0; i < len; i++)
    417             {
    418                 sprintf((char *)&num_array[i*2],"%02X",(UINT8)(p_val[i]));
    419             }
    420             SDP_TRACE_DEBUG("SDP_AddAttribute: handle:%X, id:%04X, type:%d, len:%d, p_val:%p, *p_val:%s",
    421                             handle,attr_id,attr_type,attr_len,p_val,num_array);
    422         }
    423         else if (attr_type == BOOLEAN_DESC_TYPE)
    424         {
    425             SDP_TRACE_DEBUG("SDP_AddAttribute: handle:%X, id:%04X, type:%d, len:%d, p_val:%p, *p_val:%d",
    426                              handle,attr_id,attr_type,attr_len,p_val,*p_val);
    427         }
    428         else
    429         {
    430             SDP_TRACE_DEBUG("SDP_AddAttribute: handle:%X, id:%04X, type:%d, len:%d, p_val:%p, *p_val:%s",
    431                 handle,attr_id,attr_type,attr_len,p_val,p_val);
    432         }
    433     }
    434 #endif
    435 
    436     /* Find the record in the database */
    437     for (zz = 0; zz < sdp_cb.server_db.num_records; zz++, p_rec++)
    438     {
    439         if (p_rec->record_handle == handle)
    440         {
    441             tSDP_ATTRIBUTE  *p_attr = &p_rec->attribute[0];
    442 
    443             /* Found the record. Now, see if the attribute already exists */
    444             for (xx = 0; xx < p_rec->num_attributes; xx++, p_attr++)
    445             {
    446                 /* The attribute exists. replace it */
    447                 if (p_attr->id == attr_id)
    448                 {
    449                     SDP_DeleteAttribute (handle, attr_id);
    450                     break;
    451                 }
    452                 if (p_attr->id > attr_id)
    453                     break;
    454             }
    455 
    456             if (p_rec->num_attributes == SDP_MAX_REC_ATTR)
    457                 return (FALSE);
    458 
    459             /* If not found, see if we can allocate a new entry */
    460             if (xx == p_rec->num_attributes)
    461                 p_attr = &p_rec->attribute[p_rec->num_attributes];
    462             else
    463             {
    464                 /* Since the attributes are kept in sorted order, insert ours here */
    465                 for (yy = p_rec->num_attributes; yy > xx; yy--)
    466                     p_rec->attribute[yy] = p_rec->attribute[yy - 1];
    467             }
    468 
    469             p_attr->id   = attr_id;
    470             p_attr->type = attr_type;
    471             p_attr->len  = attr_len;
    472 
    473             if (p_rec->free_pad_ptr + attr_len >= SDP_MAX_PAD_LEN)
    474             {
    475                 /* do truncate only for text string type descriptor */
    476                 if (attr_type == TEXT_STR_DESC_TYPE)
    477                 {
    478                     SDP_TRACE_WARNING("SDP_AddAttribute: attr_len:%d too long. truncate to (%d)",
    479                         attr_len, SDP_MAX_PAD_LEN - p_rec->free_pad_ptr );
    480 
    481                     attr_len = SDP_MAX_PAD_LEN - p_rec->free_pad_ptr;
    482                     p_val[SDP_MAX_PAD_LEN - p_rec->free_pad_ptr] = '\0';
    483                     p_val[SDP_MAX_PAD_LEN - p_rec->free_pad_ptr+1] = '\0';
    484                 }
    485                 else
    486                     attr_len = 0;
    487             }
    488 
    489             if ((attr_len > 0) && (p_val != 0))
    490             {
    491                 p_attr->len  = attr_len;
    492                 memcpy (&p_rec->attr_pad[p_rec->free_pad_ptr], p_val, (size_t)attr_len);
    493                 p_attr->value_ptr = &p_rec->attr_pad[p_rec->free_pad_ptr];
    494                 p_rec->free_pad_ptr += attr_len;
    495             }
    496             else if ((attr_len == 0 && p_attr->len != 0) || /* if truncate to 0 length, simply don't add */
    497                       p_val == 0)
    498             {
    499                 SDP_TRACE_ERROR("SDP_AddAttribute fail, length exceed maximum: ID %d: attr_len:%d ",
    500                     attr_id, attr_len );
    501                 p_attr->id   = p_attr->type = p_attr->len  = 0;
    502                 return (FALSE);
    503             }
    504             p_rec->num_attributes++;
    505             return (TRUE);
    506         }
    507     }
    508 #endif
    509     return (FALSE);
    510 }
    511 
    512 
    513 /*******************************************************************************
    514 **
    515 ** Function         SDP_AddSequence
    516 **
    517 ** Description      This function is called to add a sequence to a record.
    518 **                  This would be through the SDP database maintenance API.
    519 **                  If the sequence already exists in the record, it is replaced
    520 **                  with the new sequence.
    521 **
    522 ** NOTE             Element values must be passed as a Big Endian stream.
    523 **
    524 ** Returns          TRUE if added OK, else FALSE
    525 **
    526 *******************************************************************************/
    527 BOOLEAN SDP_AddSequence (UINT32 handle,  UINT16 attr_id, UINT16 num_elem,
    528                          UINT8 type[], UINT8 len[], UINT8 *p_val[])
    529 {
    530 #if SDP_SERVER_ENABLED == TRUE
    531     UINT16          xx;
    532     UINT8           *p_buff;
    533     UINT8           *p;
    534     UINT8           *p_head;
    535     BOOLEAN         result;
    536 
    537     if ((p_buff = (UINT8 *) GKI_getbuf(sizeof(UINT8) * SDP_MAX_ATTR_LEN * 2)) == NULL)
    538     {
    539         SDP_TRACE_ERROR("SDP_AddSequence cannot get a buffer!");
    540         return (FALSE);
    541     }
    542     p = p_buff;
    543 
    544     /* First, build the sequence */
    545     for (xx = 0; xx < num_elem; xx++)
    546     {
    547         p_head = p;
    548         switch (len[xx])
    549         {
    550         case 1:
    551             UINT8_TO_BE_STREAM (p, (type[xx] << 3) | SIZE_ONE_BYTE);
    552             break;
    553         case 2:
    554             UINT8_TO_BE_STREAM  (p, (type[xx] << 3) | SIZE_TWO_BYTES);
    555             break;
    556         case 4:
    557             UINT8_TO_BE_STREAM  (p, (type[xx] << 3) | SIZE_FOUR_BYTES);
    558             break;
    559         case 8:
    560             UINT8_TO_BE_STREAM  (p, (type[xx] << 3) | SIZE_EIGHT_BYTES);
    561             break;
    562         case 16:
    563             UINT8_TO_BE_STREAM  (p, (type[xx] << 3) | SIZE_SIXTEEN_BYTES);
    564             break;
    565         default:
    566             UINT8_TO_BE_STREAM (p, (type[xx] << 3) | SIZE_IN_NEXT_BYTE);
    567             UINT8_TO_BE_STREAM (p, len[xx]);
    568             break;
    569         }
    570 
    571         ARRAY_TO_BE_STREAM (p, p_val[xx], len[xx]);
    572 
    573         if (p - p_buff > SDP_MAX_ATTR_LEN)
    574         {
    575             /* go back to before we add this element */
    576             p = p_head;
    577             if(p_head == p_buff)
    578             {
    579                 /* the first element exceed the max length */
    580                 SDP_TRACE_ERROR ("SDP_AddSequence - too long(attribute is not added)!!");
    581                 GKI_freebuf(p_buff);
    582                 return FALSE;
    583             }
    584             else
    585                 SDP_TRACE_ERROR ("SDP_AddSequence - too long, add %d elements of %d", xx, num_elem);
    586             break;
    587         }
    588     }
    589     result = SDP_AddAttribute (handle, attr_id, DATA_ELE_SEQ_DESC_TYPE,(UINT32) (p - p_buff), p_buff);
    590     GKI_freebuf(p_buff);
    591     return result;
    592 #else   /* SDP_SERVER_ENABLED == FALSE */
    593     return (FALSE);
    594 #endif
    595 }
    596 
    597 
    598 /*******************************************************************************
    599 **
    600 ** Function         SDP_AddUuidSequence
    601 **
    602 ** Description      This function is called to add a UUID sequence to a record.
    603 **                  This would be through the SDP database maintenance API.
    604 **                  If the sequence already exists in the record, it is replaced
    605 **                  with the new sequence.
    606 **
    607 ** Returns          TRUE if added OK, else FALSE
    608 **
    609 *******************************************************************************/
    610 BOOLEAN SDP_AddUuidSequence (UINT32 handle,  UINT16 attr_id, UINT16 num_uuids,
    611                              UINT16 *p_uuids)
    612 {
    613 #if SDP_SERVER_ENABLED == TRUE
    614     UINT16          xx;
    615     UINT8           *p_buff;
    616     UINT8           *p;
    617     INT32           max_len = SDP_MAX_ATTR_LEN -3;
    618     BOOLEAN         result;
    619 
    620     if ((p_buff = (UINT8 *) GKI_getbuf(sizeof(UINT8) * SDP_MAX_ATTR_LEN * 2)) == NULL)
    621     {
    622         SDP_TRACE_ERROR("SDP_AddUuidSequence cannot get a buffer!");
    623         return (FALSE);
    624     }
    625     p = p_buff;
    626 
    627     /* First, build the sequence */
    628     for (xx = 0; xx < num_uuids ; xx++, p_uuids++)
    629     {
    630         UINT8_TO_BE_STREAM  (p, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
    631         UINT16_TO_BE_STREAM (p, *p_uuids);
    632 
    633         if((p - p_buff) > max_len)
    634         {
    635             SDP_TRACE_WARNING ("SDP_AddUuidSequence - too long, add %d uuids of %d", xx, num_uuids);
    636             break;
    637         }
    638     }
    639 
    640     result = SDP_AddAttribute (handle, attr_id, DATA_ELE_SEQ_DESC_TYPE,(UINT32) (p - p_buff), p_buff);
    641     GKI_freebuf(p_buff);
    642     return result;
    643 #else   /* SDP_SERVER_ENABLED == FALSE */
    644     return (FALSE);
    645 #endif
    646 }
    647 
    648 /*******************************************************************************
    649 **
    650 ** Function         SDP_AddProtocolList
    651 **
    652 ** Description      This function is called to add a protocol descriptor list to
    653 **                  a record. This would be through the SDP database maintenance API.
    654 **                  If the protocol list already exists in the record, it is replaced
    655 **                  with the new list.
    656 **
    657 ** Returns          TRUE if added OK, else FALSE
    658 **
    659 *******************************************************************************/
    660 BOOLEAN SDP_AddProtocolList (UINT32 handle, UINT16 num_elem,
    661                              tSDP_PROTOCOL_ELEM *p_elem_list)
    662 {
    663 #if SDP_SERVER_ENABLED == TRUE
    664     UINT8           *p_buff;
    665     int             offset;
    666     BOOLEAN         result;
    667 
    668     if ((p_buff = (UINT8 *) GKI_getbuf(sizeof(UINT8) * SDP_MAX_ATTR_LEN * 2)) == NULL)
    669     {
    670         SDP_TRACE_ERROR("SDP_AddProtocolList cannot get a buffer!");
    671         return (FALSE);
    672     }
    673 
    674     offset = sdp_compose_proto_list(p_buff, num_elem, p_elem_list);
    675     result = SDP_AddAttribute (handle, ATTR_ID_PROTOCOL_DESC_LIST,DATA_ELE_SEQ_DESC_TYPE, (UINT32) offset, p_buff);
    676     GKI_freebuf(p_buff);
    677     return result;
    678 #else   /* SDP_SERVER_ENABLED == FALSE */
    679     return (FALSE);
    680 #endif
    681 }
    682 
    683 
    684 /*******************************************************************************
    685 **
    686 ** Function         SDP_AddAdditionProtoLists
    687 **
    688 ** Description      This function is called to add a protocol descriptor list to
    689 **                  a record. This would be through the SDP database maintenance API.
    690 **                  If the protocol list already exists in the record, it is replaced
    691 **                  with the new list.
    692 **
    693 ** Returns          TRUE if added OK, else FALSE
    694 **
    695 *******************************************************************************/
    696 BOOLEAN SDP_AddAdditionProtoLists (UINT32 handle, UINT16 num_elem,
    697                                    tSDP_PROTO_LIST_ELEM *p_proto_list)
    698 {
    699 #if SDP_SERVER_ENABLED == TRUE
    700     UINT16          xx;
    701     UINT8           *p_buff;
    702     UINT8           *p;
    703     UINT8           *p_len;
    704     int             offset;
    705     BOOLEAN         result;
    706 
    707     if ((p_buff = (UINT8 *) GKI_getbuf(sizeof(UINT8) * SDP_MAX_ATTR_LEN * 2)) == NULL)
    708     {
    709         SDP_TRACE_ERROR("SDP_AddAdditionProtoLists cannot get a buffer!");
    710         return (FALSE);
    711     }
    712     p = p_buff;
    713 
    714     /* for each ProtocolDescriptorList */
    715     for (xx = 0; xx < num_elem; xx++, p_proto_list++)
    716     {
    717         UINT8_TO_BE_STREAM  (p, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
    718         p_len = p++;
    719 
    720         offset = sdp_compose_proto_list(p, p_proto_list->num_elems,
    721                                         p_proto_list->list_elem);
    722         p += offset;
    723 
    724         *p_len  = (UINT8)(p - p_len - 1);
    725     }
    726     result = SDP_AddAttribute (handle, ATTR_ID_ADDITION_PROTO_DESC_LISTS,DATA_ELE_SEQ_DESC_TYPE,
    727 	                           (UINT32) (p - p_buff), p_buff);
    728     GKI_freebuf(p_buff);
    729     return result;
    730 
    731 #else   /* SDP_SERVER_ENABLED == FALSE */
    732     return (FALSE);
    733 #endif
    734 }
    735 
    736 /*******************************************************************************
    737 **
    738 ** Function         SDP_AddProfileDescriptorList
    739 **
    740 ** Description      This function is called to add a profile descriptor list to
    741 **                  a record. This would be through the SDP database maintenance API.
    742 **                  If the version already exists in the record, it is replaced
    743 **                  with the new one.
    744 **
    745 ** Returns          TRUE if added OK, else FALSE
    746 **
    747 *******************************************************************************/
    748 BOOLEAN SDP_AddProfileDescriptorList (UINT32 handle, UINT16 profile_uuid,
    749                                       UINT16 version)
    750 {
    751 #if SDP_SERVER_ENABLED == TRUE
    752     UINT8           *p_buff;
    753     UINT8           *p;
    754      BOOLEAN        result;
    755 
    756     if ((p_buff = (UINT8 *) GKI_getbuf(sizeof(UINT8) * SDP_MAX_ATTR_LEN)) == NULL)
    757     {
    758         SDP_TRACE_ERROR("SDP_AddProfileDescriptorList cannot get a buffer!");
    759         return (FALSE);
    760     }
    761     p = p_buff+2;
    762 
    763     /* First, build the profile descriptor list. This consists of a data element sequence. */
    764     /* The sequence consists of profile's UUID and version number  */
    765     UINT8_TO_BE_STREAM  (p, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
    766     UINT16_TO_BE_STREAM (p, profile_uuid);
    767 
    768     UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
    769     UINT16_TO_BE_STREAM (p, version);
    770 
    771     /* Add in type and length fields */
    772     *p_buff = (UINT8) ((DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
    773     *(p_buff+1) = (UINT8) (p - (p_buff+2));
    774 
    775     result = SDP_AddAttribute (handle, ATTR_ID_BT_PROFILE_DESC_LIST,DATA_ELE_SEQ_DESC_TYPE, (UINT32) (p - p_buff), p_buff);
    776     GKI_freebuf(p_buff);
    777     return result;
    778 
    779 #else   /* SDP_SERVER_ENABLED == FALSE */
    780     return (FALSE);
    781 #endif
    782 }
    783 
    784 
    785 /*******************************************************************************
    786 **
    787 ** Function         SDP_AddLanguageBaseAttrIDList
    788 **
    789 ** Description      This function is called to add a language base attr list to
    790 **                  a record. This would be through the SDP database maintenance API.
    791 **                  If the version already exists in the record, it is replaced
    792 **                  with the new one.
    793 **
    794 ** Returns          TRUE if added OK, else FALSE
    795 **
    796 *******************************************************************************/
    797 BOOLEAN SDP_AddLanguageBaseAttrIDList (UINT32 handle, UINT16 lang,
    798                                        UINT16 char_enc, UINT16 base_id)
    799 {
    800 #if SDP_SERVER_ENABLED == TRUE
    801     UINT8           *p_buff;
    802     UINT8           *p;
    803     BOOLEAN         result;
    804 
    805     if ((p_buff = (UINT8 *) GKI_getbuf(sizeof(UINT8) * SDP_MAX_ATTR_LEN)) == NULL)
    806     {
    807         SDP_TRACE_ERROR("SDP_AddLanguageBaseAttrIDList cannot get a buffer!");
    808         return (FALSE);
    809     }
    810     p = p_buff;
    811 
    812     /* First, build the language base descriptor list. This consists of a data */
    813     /* element sequence. The sequence consists of 9 bytes (3 UINt16 fields)    */
    814     UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
    815     UINT16_TO_BE_STREAM (p, lang);
    816 
    817     UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
    818     UINT16_TO_BE_STREAM (p, char_enc);
    819 
    820     UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
    821     UINT16_TO_BE_STREAM (p, base_id);
    822 
    823     result = SDP_AddAttribute (handle, ATTR_ID_LANGUAGE_BASE_ATTR_ID_LIST,DATA_ELE_SEQ_DESC_TYPE,
    824 	                           (UINT32) (p - p_buff), p_buff);
    825     GKI_freebuf(p_buff);
    826     return result;
    827 #else   /* SDP_SERVER_ENABLED == FALSE */
    828     return (FALSE);
    829 #endif
    830 }
    831 
    832 
    833 /*******************************************************************************
    834 **
    835 ** Function         SDP_AddServiceClassIdList
    836 **
    837 ** Description      This function is called to add a service list to a record.
    838 **                  This would be through the SDP database maintenance API.
    839 **                  If the service list already exists in the record, it is replaced
    840 **                  with the new list.
    841 **
    842 ** Returns          TRUE if added OK, else FALSE
    843 **
    844 *******************************************************************************/
    845 BOOLEAN SDP_AddServiceClassIdList (UINT32 handle, UINT16 num_services,
    846                                    UINT16 *p_service_uuids)
    847 {
    848 #if SDP_SERVER_ENABLED == TRUE
    849     UINT16          xx;
    850     UINT8           *p_buff;
    851     UINT8           *p;
    852     BOOLEAN         result;
    853 
    854     if ((p_buff = (UINT8 *) GKI_getbuf(sizeof(UINT8) * SDP_MAX_ATTR_LEN * 2)) == NULL)
    855     {
    856         SDP_TRACE_ERROR("SDP_AddServiceClassIdList cannot get a buffer!");
    857         return (FALSE);
    858     }
    859     p = p_buff;
    860 
    861     for (xx = 0; xx < num_services; xx++, p_service_uuids++)
    862     {
    863         UINT8_TO_BE_STREAM  (p, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
    864         UINT16_TO_BE_STREAM (p, *p_service_uuids);
    865     }
    866 
    867     result = SDP_AddAttribute (handle, ATTR_ID_SERVICE_CLASS_ID_LIST,DATA_ELE_SEQ_DESC_TYPE,
    868 	                           (UINT32) (p - p_buff), p_buff);
    869     GKI_freebuf(p_buff);
    870     return result;
    871 #else   /* SDP_SERVER_ENABLED == FALSE */
    872     return (FALSE);
    873 #endif
    874 }
    875 
    876 
    877 /*******************************************************************************
    878 **
    879 ** Function         SDP_DeleteAttribute
    880 **
    881 ** Description      This function is called to delete an attribute from a record.
    882 **                  This would be through the SDP database maintenance API.
    883 **
    884 ** Returns          TRUE if deleted OK, else FALSE if not found
    885 **
    886 *******************************************************************************/
    887 BOOLEAN SDP_DeleteAttribute (UINT32 handle, UINT16 attr_id)
    888 {
    889 #if SDP_SERVER_ENABLED == TRUE
    890     UINT16          xx, yy;
    891     tSDP_RECORD     *p_rec = &sdp_cb.server_db.record[0];
    892     UINT8           *pad_ptr;
    893     UINT32  len;                        /* Number of bytes in the entry */
    894 
    895     /* Find the record in the database */
    896     for (xx = 0; xx < sdp_cb.server_db.num_records; xx++, p_rec++)
    897     {
    898         if (p_rec->record_handle == handle)
    899         {
    900             tSDP_ATTRIBUTE  *p_attr = &p_rec->attribute[0];
    901 
    902             SDP_TRACE_API("Deleting attr_id 0x%04x for handle 0x%x", attr_id, handle);
    903             /* Found it. Now, find the attribute */
    904             for (xx = 0; xx < p_rec->num_attributes; xx++, p_attr++)
    905             {
    906                 if (p_attr->id == attr_id)
    907                 {
    908                     pad_ptr = p_attr->value_ptr;
    909                     len = p_attr->len;
    910 
    911                     if (len)
    912                     {
    913                         for (yy = 0; yy < p_rec->num_attributes; yy++)
    914                         {
    915                             if( p_rec->attribute[yy].value_ptr > pad_ptr )
    916                                 p_rec->attribute[yy].value_ptr -= len;
    917                         }
    918                     }
    919 
    920                     /* Found it. Shift everything up one */
    921                     p_rec->num_attributes--;
    922 
    923                     for (yy = xx; yy < p_rec->num_attributes; yy++, p_attr++)
    924                     {
    925                         *p_attr = *(p_attr + 1);
    926                     }
    927 
    928                     /* adjust attribute values if needed */
    929                     if (len)
    930                     {
    931                         xx = (p_rec->free_pad_ptr - ((pad_ptr+len) -
    932                                                   &p_rec->attr_pad[0]));
    933                         for( yy=0; yy<xx; yy++, pad_ptr++)
    934                             *pad_ptr = *(pad_ptr+len);
    935                         p_rec->free_pad_ptr -= len;
    936                     }
    937                     return (TRUE);
    938                 }
    939             }
    940         }
    941     }
    942 #endif
    943     /* If here, not found */
    944     return (FALSE);
    945 }
    946 
    947 /*******************************************************************************
    948 **
    949 ** Function         SDP_ReadRecord
    950 **
    951 ** Description      This function is called to get the raw data of the record
    952 **                  with the given handle from the database.
    953 **
    954 ** Returns          -1, if the record is not found.
    955 **                  Otherwise, the offset (0 or 1) to start of data in p_data.
    956 **
    957 **                  The size of data copied into p_data is in *p_data_len.
    958 **
    959 *******************************************************************************/
    960 #if (SDP_RAW_DATA_INCLUDED == TRUE)
    961 INT32 SDP_ReadRecord(UINT32 handle, UINT8 *p_data, INT32 *p_data_len)
    962 {
    963     INT32           len = 0;                        /* Number of bytes in the entry */
    964     INT32           offset = -1; /* default to not found */
    965 #if SDP_SERVER_ENABLED == TRUE
    966     tSDP_RECORD     *p_rec;
    967     UINT16          start = 0;
    968     UINT16          end = 0xffff;
    969     tSDP_ATTRIBUTE  *p_attr;
    970     UINT16          rem_len;
    971     UINT8           *p_rsp;
    972 
    973     /* Find the record in the database */
    974     p_rec = sdp_db_find_record(handle);
    975     if(p_rec && p_data && p_data_len)
    976     {
    977         p_rsp = &p_data[3];
    978         while ( (p_attr = sdp_db_find_attr_in_rec (p_rec, start, end)) != NULL)
    979         {
    980             /* Check if attribute fits. Assume 3-byte value type/length */
    981             rem_len = *p_data_len - (UINT16) (p_rsp - p_data);
    982 
    983             if (p_attr->len > (UINT32)(rem_len - 6))
    984                 break;
    985 
    986             p_rsp = sdpu_build_attrib_entry (p_rsp, p_attr);
    987 
    988             /* next attr id */
    989             start = p_attr->id + 1;
    990         }
    991         len = (INT32) (p_rsp - p_data);
    992 
    993         /* Put in the sequence header (2 or 3 bytes) */
    994         if (len > 255)
    995         {
    996             offset = 0;
    997             p_data[0] = (UINT8) ((DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_WORD);
    998             p_data[1] = (UINT8) ((len - 3) >> 8);
    999             p_data[2] = (UINT8) (len - 3);
   1000         }
   1001         else
   1002         {
   1003             offset = 1;
   1004 
   1005             p_data[1] = (UINT8) ((DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
   1006             p_data[2] = (UINT8) (len - 3);
   1007 
   1008             len--;
   1009         }
   1010         *p_data_len = len;
   1011     }
   1012 #endif
   1013     /* If here, not found */
   1014     return (offset);
   1015 }
   1016 #endif
   1017