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Diffstat (limited to 'src/sdp.c')
| -rw-r--r-- | src/sdp.c | 4421 |
1 files changed, 0 insertions, 4421 deletions
diff --git a/src/sdp.c b/src/sdp.c deleted file mode 100644 index 3149c0f1..00000000 --- a/src/sdp.c +++ /dev/null @@ -1,4421 +0,0 @@ -/* - * - * BlueZ - Bluetooth protocol stack for Linux - * - * Copyright (C) 2001-2002 Nokia Corporation - * Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com> - * Copyright (C) 2002-2008 Marcel Holtmann <marcel@holtmann.org> - * Copyright (C) 2002-2003 Stephen Crane <steve.crane@rococosoft.com> - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdio.h> -#include <errno.h> -#include <fcntl.h> -#include <unistd.h> -#include <stdlib.h> -#include <limits.h> -#include <string.h> -#include <syslog.h> -#include <sys/time.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/un.h> - -#include <bluetooth/bluetooth.h> -#include <bluetooth/hci.h> -#include <bluetooth/hci_lib.h> -#include <bluetooth/l2cap.h> -#include <bluetooth/sdp.h> -#include <bluetooth/sdp_lib.h> - -#include <netinet/in.h> - -#define SDPINF(fmt, arg...) syslog(LOG_INFO, fmt "\n", ## arg) -#define SDPERR(fmt, arg...) syslog(LOG_ERR, "%s: " fmt "\n", __func__ , ## arg) - -#ifdef SDP_DEBUG -#define SDPDBG(fmt, arg...) syslog(LOG_DEBUG, "%s: " fmt "\n", __func__ , ## arg) -#else -#define SDPDBG(fmt...) -#endif - -#if __BYTE_ORDER == __BIG_ENDIAN -#define ntoh64(x) (x) -static inline void ntoh128(uint128_t *src, uint128_t *dst) -{ - int i; - for (i = 0; i < 16; i++) - dst->data[i] = src->data[i]; -} -#else -static inline uint64_t ntoh64(uint64_t n) -{ - uint64_t h; - uint64_t tmp = ntohl(n & 0x00000000ffffffff); - h = ntohl(n >> 32); - h |= tmp << 32; - return h; -} -static inline void ntoh128(uint128_t *src, uint128_t *dst) -{ - int i; - for (i = 0; i < 16; i++) - dst->data[15 - i] = src->data[i]; -} -#endif - -#define hton64(x) ntoh64(x) -#define hton128(x, y) ntoh128(x, y) - -#define BASE_UUID "00000000-0000-1000-8000-00805F9B34FB" - -static uint128_t bluetooth_base_uuid = { - .data = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, - 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB } -}; - -#define SDP_MAX_ATTR_LEN 65535 - -/* Message structure. */ -struct tupla { - int index; - char *str; -}; - -static struct tupla Protocol[] = { - { SDP_UUID, "SDP" }, - { UDP_UUID, "UDP" }, - { RFCOMM_UUID, "RFCOMM" }, - { TCP_UUID, "TCP" }, - { TCS_BIN_UUID, "TCS-BIN" }, - { TCS_AT_UUID, "TCS-AT" }, - { OBEX_UUID, "OBEX" }, - { IP_UUID, "IP" }, - { FTP_UUID, "FTP" }, - { HTTP_UUID, "HTTP" }, - { WSP_UUID, "WSP" }, - { BNEP_UUID, "BNEP" }, - { UPNP_UUID, "UPNP" }, - { HIDP_UUID, "HIDP" }, - { HCRP_CTRL_UUID, "HCRP-Ctrl" }, - { HCRP_DATA_UUID, "HCRP-Data" }, - { HCRP_NOTE_UUID, "HCRP-Notify" }, - { AVCTP_UUID, "AVCTP" }, - { AVDTP_UUID, "AVDTP" }, - { CMTP_UUID, "CMTP" }, - { UDI_UUID, "UDI" }, - { MCAP_CTRL_UUID, "MCAP-Ctrl" }, - { MCAP_DATA_UUID, "MCAP-Data" }, - { L2CAP_UUID, "L2CAP" }, - { 0 } -}; - -static struct tupla ServiceClass[] = { - { SDP_SERVER_SVCLASS_ID, "SDP Server" }, - { BROWSE_GRP_DESC_SVCLASS_ID, "Browse Group Descriptor" }, - { PUBLIC_BROWSE_GROUP, "Public Browse Group" }, - { SERIAL_PORT_SVCLASS_ID, "Serial Port" }, - { LAN_ACCESS_SVCLASS_ID, "LAN Access Using PPP" }, - { DIALUP_NET_SVCLASS_ID, "Dialup Networking" }, - { IRMC_SYNC_SVCLASS_ID, "IrMC Sync" }, - { OBEX_OBJPUSH_SVCLASS_ID, "OBEX Object Push" }, - { OBEX_FILETRANS_SVCLASS_ID, "OBEX File Transfer" }, - { IRMC_SYNC_CMD_SVCLASS_ID, "IrMC Sync Command" }, - { HEADSET_SVCLASS_ID, "Headset" }, - { CORDLESS_TELEPHONY_SVCLASS_ID, "Cordless Telephony" }, - { AUDIO_SOURCE_SVCLASS_ID, "Audio Source" }, - { AUDIO_SINK_SVCLASS_ID, "Audio Sink" }, - { AV_REMOTE_TARGET_SVCLASS_ID, "AV Remote Target" }, - { ADVANCED_AUDIO_SVCLASS_ID, "Advanced Audio" }, - { AV_REMOTE_SVCLASS_ID, "AV Remote" }, - { VIDEO_CONF_SVCLASS_ID, "Video Conferencing" }, - { INTERCOM_SVCLASS_ID, "Intercom" }, - { FAX_SVCLASS_ID, "Fax" }, - { HEADSET_AGW_SVCLASS_ID, "Headset Audio Gateway" }, - { WAP_SVCLASS_ID, "WAP" }, - { WAP_CLIENT_SVCLASS_ID, "WAP Client" }, - { PANU_SVCLASS_ID, "PAN User" }, - { NAP_SVCLASS_ID, "Network Access Point" }, - { GN_SVCLASS_ID, "PAN Group Network" }, - { DIRECT_PRINTING_SVCLASS_ID, "Direct Printing" }, - { REFERENCE_PRINTING_SVCLASS_ID, "Reference Printing" }, - { IMAGING_SVCLASS_ID, "Imaging" }, - { IMAGING_RESPONDER_SVCLASS_ID, "Imaging Responder" }, - { IMAGING_ARCHIVE_SVCLASS_ID, "Imaging Automatic Archive" }, - { IMAGING_REFOBJS_SVCLASS_ID, "Imaging Referenced Objects" }, - { HANDSFREE_SVCLASS_ID, "Handsfree" }, - { HANDSFREE_AGW_SVCLASS_ID, "Handsfree Audio Gateway" }, - { DIRECT_PRT_REFOBJS_SVCLASS_ID, "Direct Printing Ref. Objects" }, - { REFLECTED_UI_SVCLASS_ID, "Reflected UI" }, - { BASIC_PRINTING_SVCLASS_ID, "Basic Printing" }, - { PRINTING_STATUS_SVCLASS_ID, "Printing Status" }, - { HID_SVCLASS_ID, "Human Interface Device" }, - { HCR_SVCLASS_ID, "Hardcopy Cable Replacement" }, - { HCR_PRINT_SVCLASS_ID, "HCR Print" }, - { HCR_SCAN_SVCLASS_ID, "HCR Scan" }, - { CIP_SVCLASS_ID, "Common ISDN Access" }, - { VIDEO_CONF_GW_SVCLASS_ID, "Video Conferencing Gateway" }, - { UDI_MT_SVCLASS_ID, "UDI MT" }, - { UDI_TA_SVCLASS_ID, "UDI TA" }, - { AV_SVCLASS_ID, "Audio/Video" }, - { SAP_SVCLASS_ID, "SIM Access" }, - { PBAP_PCE_SVCLASS_ID, "Phonebook Access - PCE" }, - { PBAP_PSE_SVCLASS_ID, "Phonebook Access - PSE" }, - { PBAP_SVCLASS_ID, "Phonebook Access" }, - { PNP_INFO_SVCLASS_ID, "PnP Information" }, - { GENERIC_NETWORKING_SVCLASS_ID, "Generic Networking" }, - { GENERIC_FILETRANS_SVCLASS_ID, "Generic File Transfer" }, - { GENERIC_AUDIO_SVCLASS_ID, "Generic Audio" }, - { GENERIC_TELEPHONY_SVCLASS_ID, "Generic Telephony" }, - { UPNP_SVCLASS_ID, "UPnP" }, - { UPNP_IP_SVCLASS_ID, "UPnP IP" }, - { UPNP_PAN_SVCLASS_ID, "UPnP PAN" }, - { UPNP_LAP_SVCLASS_ID, "UPnP LAP" }, - { UPNP_L2CAP_SVCLASS_ID, "UPnP L2CAP" }, - { VIDEO_SOURCE_SVCLASS_ID, "Video Source" }, - { VIDEO_SINK_SVCLASS_ID, "Video Sink" }, - { VIDEO_DISTRIBUTION_SVCLASS_ID, "Video Distribution" }, - { MDP_SVCLASS_ID, "MDP" }, - { MDP_SOURCE_SVCLASS_ID, "MDP Source" }, - { MDP_SINK_SVCLASS_ID, "MDP Sink" }, - { APPLE_AGENT_SVCLASS_ID, "Apple Agent" }, - { 0 } -}; - -#define Profile ServiceClass - -static char *string_lookup(struct tupla *pt0, int index) -{ - struct tupla *pt; - - for (pt = pt0; pt->index; pt++) - if (pt->index == index) - return pt->str; - - return ""; -} - -static char *string_lookup_uuid(struct tupla *pt0, const uuid_t* uuid) -{ - uuid_t tmp_uuid; - - memcpy(&tmp_uuid, uuid, sizeof(tmp_uuid)); - - if (sdp_uuid128_to_uuid(&tmp_uuid)) { - switch (tmp_uuid.type) { - case SDP_UUID16: - return string_lookup(pt0, tmp_uuid.value.uuid16); - case SDP_UUID32: - return string_lookup(pt0, tmp_uuid.value.uuid32); - } - } - - return ""; -} - -/* - * Prints into a string the Protocol UUID - * coping a maximum of n characters. - */ -static int uuid2str(struct tupla *message, const uuid_t *uuid, char *str, size_t n) -{ - char *str2; - - if (!uuid) { - snprintf(str, n, "NULL"); - return -2; - } - - switch (uuid->type) { - case SDP_UUID16: - str2 = string_lookup(message, uuid->value.uuid16); - snprintf(str, n, str2); - break; - case SDP_UUID32: - str2 = string_lookup(message, uuid->value.uuid32); - snprintf(str, n, str2); - break; - case SDP_UUID128: - str2 = string_lookup_uuid(message, uuid); - snprintf(str, n, str2); - break; - default: - snprintf(str, n, "Type of UUID (%x) unknown.", uuid->type); - return -1; - } - - return 0; -} - -int sdp_proto_uuid2strn(const uuid_t *uuid, char *str, size_t n) -{ - return uuid2str(Protocol, uuid, str, n); -} - -int sdp_svclass_uuid2strn(const uuid_t *uuid, char *str, size_t n) -{ - return uuid2str(ServiceClass, uuid, str, n); -} - -int sdp_profile_uuid2strn(const uuid_t *uuid, char *str, size_t n) -{ - return uuid2str(Profile, uuid, str, n); -} - -/* - * convert the UUID to string, copying a maximum of n characters. - */ -int sdp_uuid2strn(const uuid_t *uuid, char *str, size_t n) -{ - if (!uuid) { - snprintf(str, n, "NULL"); - return -2; - } - switch (uuid->type) { - case SDP_UUID16: - snprintf(str, n, "%.4x", uuid->value.uuid16); - break; - case SDP_UUID32: - snprintf(str, n, "%.8x", uuid->value.uuid32); - break; - case SDP_UUID128:{ - unsigned int data0; - unsigned short data1; - unsigned short data2; - unsigned short data3; - unsigned int data4; - unsigned short data5; - - memcpy(&data0, &uuid->value.uuid128.data[0], 4); - memcpy(&data1, &uuid->value.uuid128.data[4], 2); - memcpy(&data2, &uuid->value.uuid128.data[6], 2); - memcpy(&data3, &uuid->value.uuid128.data[8], 2); - memcpy(&data4, &uuid->value.uuid128.data[10], 4); - memcpy(&data5, &uuid->value.uuid128.data[14], 2); - - snprintf(str, n, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x", - ntohl(data0), ntohs(data1), - ntohs(data2), ntohs(data3), - ntohl(data4), ntohs(data5)); - } - break; - default: - snprintf(str, n, "Type of UUID (%x) unknown.", uuid->type); - return -1; // Enum type of UUID not set - } - return 0; -} - -#ifdef SDP_DEBUG -/* - * Function prints the UUID in hex as per defined syntax - - * - * 4bytes-2bytes-2bytes-2bytes-6bytes - * - * There is some ugly code, including hardcoding, but - * that is just the way it is converting 16 and 32 bit - * UUIDs to 128 bit as defined in the SDP doc - */ -void sdp_uuid_print(const uuid_t *uuid) -{ - if (uuid == NULL) { - SDPERR("Null passed to print UUID\n"); - return; - } - if (uuid->type == SDP_UUID16) { - SDPDBG(" uint16_t : 0x%.4x\n", uuid->value.uuid16); - } else if (uuid->type == SDP_UUID32) { - SDPDBG(" uint32_t : 0x%.8x\n", uuid->value.uuid32); - } else if (uuid->type == SDP_UUID128) { - unsigned int data0; - unsigned short data1; - unsigned short data2; - unsigned short data3; - unsigned int data4; - unsigned short data5; - - memcpy(&data0, &uuid->value.uuid128.data[0], 4); - memcpy(&data1, &uuid->value.uuid128.data[4], 2); - memcpy(&data2, &uuid->value.uuid128.data[6], 2); - memcpy(&data3, &uuid->value.uuid128.data[8], 2); - memcpy(&data4, &uuid->value.uuid128.data[10], 4); - memcpy(&data5, &uuid->value.uuid128.data[14], 2); - - SDPDBG(" uint128_t : 0x%.8x-", ntohl(data0)); - SDPDBG("%.4x-", ntohs(data1)); - SDPDBG("%.4x-", ntohs(data2)); - SDPDBG("%.4x-", ntohs(data3)); - SDPDBG("%.8x", ntohl(data4)); - SDPDBG("%.4x\n", ntohs(data5)); - } else - SDPERR("Enum type of UUID not set\n"); -} -#endif - -sdp_data_t *sdp_data_alloc_with_length(uint8_t dtd, const void *value, uint32_t length) -{ - sdp_data_t *seq; - sdp_data_t *d = malloc(sizeof(sdp_data_t)); - - if (!d) - return NULL; - - memset(d, 0, sizeof(sdp_data_t)); - d->dtd = dtd; - d->unitSize = sizeof(uint8_t); - - switch (dtd) { - case SDP_DATA_NIL: - break; - case SDP_UINT8: - d->val.uint8 = *(uint8_t *) value; - d->unitSize += sizeof(uint8_t); - break; - case SDP_INT8: - case SDP_BOOL: - d->val.int8 = *(int8_t *) value; - d->unitSize += sizeof(int8_t); - break; - case SDP_UINT16: - d->val.uint16 = bt_get_unaligned((uint16_t *) value); - d->unitSize += sizeof(uint16_t); - break; - case SDP_INT16: - d->val.int16 = bt_get_unaligned((int16_t *) value); - d->unitSize += sizeof(int16_t); - break; - case SDP_UINT32: - d->val.uint32 = bt_get_unaligned((uint32_t *) value); - d->unitSize += sizeof(uint32_t); - break; - case SDP_INT32: - d->val.int32 = bt_get_unaligned((int32_t *) value); - d->unitSize += sizeof(int32_t); - break; - case SDP_INT64: - d->val.int64 = bt_get_unaligned((int64_t *) value); - d->unitSize += sizeof(int64_t); - break; - case SDP_UINT64: - d->val.uint64 = bt_get_unaligned((uint64_t *) value); - d->unitSize += sizeof(uint64_t); - break; - case SDP_UINT128: - memcpy(&d->val.uint128.data, value, sizeof(uint128_t)); - d->unitSize += sizeof(uint128_t); - break; - case SDP_INT128: - memcpy(&d->val.int128.data, value, sizeof(uint128_t)); - d->unitSize += sizeof(uint128_t); - break; - case SDP_UUID16: - sdp_uuid16_create(&d->val.uuid, bt_get_unaligned((uint16_t *) value)); - d->unitSize += sizeof(uint16_t); - break; - case SDP_UUID32: - sdp_uuid32_create(&d->val.uuid, bt_get_unaligned((uint32_t *) value)); - d->unitSize += sizeof(uint32_t); - break; - case SDP_UUID128: - sdp_uuid128_create(&d->val.uuid, value); - d->unitSize += sizeof(uint128_t); - break; - case SDP_URL_STR8: - case SDP_URL_STR16: - case SDP_TEXT_STR8: - case SDP_TEXT_STR16: - if (!value) { - free(d); - return NULL; - } - - d->unitSize += length; - if (length <= USHRT_MAX) { - d->val.str = malloc(length); - if (!d->val.str) { - free(d); - return NULL; - } - - memcpy(d->val.str, value, length); - } else { - SDPERR("Strings of size > USHRT_MAX not supported\n"); - free(d); - d = NULL; - } - break; - case SDP_URL_STR32: - case SDP_TEXT_STR32: - SDPERR("Strings of size > USHRT_MAX not supported\n"); - break; - case SDP_ALT8: - case SDP_ALT16: - case SDP_ALT32: - case SDP_SEQ8: - case SDP_SEQ16: - case SDP_SEQ32: - if (dtd == SDP_ALT8 || dtd == SDP_SEQ8) - d->unitSize += sizeof(uint8_t); - else if (dtd == SDP_ALT16 || dtd == SDP_SEQ16) - d->unitSize += sizeof(uint16_t); - else if (dtd == SDP_ALT32 || dtd == SDP_SEQ32) - d->unitSize += sizeof(uint32_t); - seq = (sdp_data_t *)value; - d->val.dataseq = seq; - for (; seq; seq = seq->next) - d->unitSize += seq->unitSize; - break; - default: - free(d); - d = NULL; - } - - return d; -} - -sdp_data_t *sdp_data_alloc(uint8_t dtd, const void *value) -{ - uint32_t length; - - switch (dtd) { - case SDP_URL_STR8: - case SDP_URL_STR16: - case SDP_TEXT_STR8: - case SDP_TEXT_STR16: - if (!value) - return NULL; - - length = strlen((char *) value); - break; - default: - length = 0; - break; - } - - return sdp_data_alloc_with_length(dtd, value, length); -} - -sdp_data_t *sdp_seq_append(sdp_data_t *seq, sdp_data_t *d) -{ - if (seq) { - sdp_data_t *p; - for (p = seq; p->next; p = p->next); - p->next = d; - } else - seq = d; - d->next = NULL; - return seq; -} - -sdp_data_t *sdp_seq_alloc_with_length(void **dtds, void **values, int *length, int len) -{ - sdp_data_t *curr = NULL, *seq = NULL; - int i; - - for (i = 0; i < len; i++) { - sdp_data_t *data; - int8_t dtd = *(uint8_t *) dtds[i]; - - if (dtd >= SDP_SEQ8 && dtd <= SDP_ALT32) - data = (sdp_data_t *) values[i]; - else - data = sdp_data_alloc_with_length(dtd, values[i], length[i]); - - if (!data) - return NULL; - - if (curr) - curr->next = data; - else - seq = data; - - curr = data; - } - - return sdp_data_alloc_with_length(SDP_SEQ8, seq, length[i]); -} - -sdp_data_t *sdp_seq_alloc(void **dtds, void **values, int len) -{ - sdp_data_t *curr = NULL, *seq = NULL; - int i; - - for (i = 0; i < len; i++) { - sdp_data_t *data; - uint8_t dtd = *(uint8_t *) dtds[i]; - - if (dtd >= SDP_SEQ8 && dtd <= SDP_ALT32) - data = (sdp_data_t *) values[i]; - else - data = sdp_data_alloc(dtd, values[i]); - - if (!data) - return NULL; - - if (curr) - curr->next = data; - else - seq = data; - - curr = data; - } - - return sdp_data_alloc(SDP_SEQ8, seq); -} - -static void extract_svclass_uuid(sdp_data_t *data, uuid_t *uuid) -{ - sdp_data_t *d; - - if (!data || data->dtd < SDP_SEQ8 || data->dtd > SDP_SEQ32) - return; - - d = data->val.dataseq; - if (!d) - return; - - if (d->dtd < SDP_UUID16 || d->dtd > SDP_UUID128) - return; - - *uuid = d->val.uuid; -} - -int sdp_attr_add(sdp_record_t *rec, uint16_t attr, sdp_data_t *d) -{ - sdp_data_t *p = sdp_data_get(rec, attr); - - if (p) - return -1; - - d->attrId = attr; - rec->attrlist = sdp_list_insert_sorted(rec->attrlist, d, sdp_attrid_comp_func); - - if (attr == SDP_ATTR_SVCLASS_ID_LIST) - extract_svclass_uuid(d, &rec->svclass); - - return 0; -} - -void sdp_attr_remove(sdp_record_t *rec, uint16_t attr) -{ - sdp_data_t *d = sdp_data_get(rec, attr); - - if (d) - rec->attrlist = sdp_list_remove(rec->attrlist, d); - - if (attr == SDP_ATTR_SVCLASS_ID_LIST) - memset(&rec->svclass, 0, sizeof(rec->svclass)); -} - -void sdp_set_seq_len(uint8_t *ptr, uint32_t length) -{ - uint8_t dtd = *(uint8_t *) ptr++; - - switch (dtd) { - case SDP_SEQ8: - case SDP_ALT8: - case SDP_TEXT_STR8: - case SDP_URL_STR8: - *(uint8_t *)ptr = (uint8_t) length; - break; - case SDP_SEQ16: - case SDP_ALT16: - case SDP_TEXT_STR16: - case SDP_URL_STR16: - bt_put_unaligned(htons(length), (uint16_t *) ptr); - break; - case SDP_SEQ32: - case SDP_ALT32: - case SDP_TEXT_STR32: - case SDP_URL_STR32: - bt_put_unaligned(htonl(length), (uint32_t *) ptr); - break; - } -} - -int sdp_set_data_type(sdp_buf_t *buf, uint8_t dtd) -{ - int orig = buf->data_size; - uint8_t *p = buf->data + buf->data_size; - - *p++ = dtd; - buf->data_size += sizeof(uint8_t); - - switch (dtd) { - case SDP_SEQ8: - case SDP_TEXT_STR8: - case SDP_URL_STR8: - case SDP_ALT8: - buf->data_size += sizeof(uint8_t); - break; - case SDP_SEQ16: - case SDP_TEXT_STR16: - case SDP_URL_STR16: - case SDP_ALT16: - buf->data_size += sizeof(uint16_t); - break; - case SDP_SEQ32: - case SDP_TEXT_STR32: - case SDP_URL_STR32: - case SDP_ALT32: - buf->data_size += sizeof(uint32_t); - break; - } - - return buf->data_size - orig; -} - -void sdp_set_attrid(sdp_buf_t *buf, uint16_t attr) -{ - uint8_t *p = buf->data; - - // data type for attr - *p++ = SDP_UINT16; - buf->data_size = sizeof(uint8_t); - bt_put_unaligned(htons(attr), (uint16_t *) p); - p += sizeof(uint16_t); - buf->data_size += sizeof(uint16_t); -} - -static int get_data_size(sdp_buf_t *buf, sdp_data_t *sdpdata) -{ - sdp_data_t *d; - int n = 0; - - for (d = sdpdata->val.dataseq; d; d = d->next) - n += sdp_gen_pdu(buf, d); - - return n; -} - -int sdp_gen_pdu(sdp_buf_t *buf, sdp_data_t *d) -{ - uint32_t pdu_size = 0, data_size = 0; - unsigned char *src = NULL, is_seq = 0, is_alt = 0; - uint8_t dtd = d->dtd; - uint16_t u16; - uint32_t u32; - uint64_t u64; - uint128_t u128; - uint8_t *seqp = buf->data + buf->data_size; - - pdu_size = sdp_set_data_type(buf, dtd); - - switch (dtd) { - case SDP_DATA_NIL: - break; - case SDP_UINT8: - src = &d->val.uint8; - data_size = sizeof(uint8_t); - break; - case SDP_UINT16: - u16 = htons(d->val.uint16); - src = (unsigned char *) &u16; - data_size = sizeof(uint16_t); - break; - case SDP_UINT32: - u32 = htonl(d->val.uint32); - src = (unsigned char *) &u32; - data_size = sizeof(uint32_t); - break; - case SDP_UINT64: - u64 = hton64(d->val.uint64); - src = (unsigned char *) &u64; - data_size = sizeof(uint64_t); - break; - case SDP_UINT128: - hton128(&d->val.uint128, &u128); - src = (unsigned char *) &u128; - data_size = sizeof(uint128_t); - break; - case SDP_INT8: - case SDP_BOOL: - src = (unsigned char *) &d->val.int8; - data_size = sizeof(int8_t); - break; - case SDP_INT16: - u16 = htons(d->val.int16); - src = (unsigned char *) &u16; - data_size = sizeof(int16_t); - break; - case SDP_INT32: - u32 = htonl(d->val.int32); - src = (unsigned char *) &u32; - data_size = sizeof(int32_t); - break; - case SDP_INT64: - u64 = hton64(d->val.int64); - src = (unsigned char *) &u64; - data_size = sizeof(int64_t); - break; - case SDP_INT128: - hton128(&d->val.int128, &u128); - src = (unsigned char *) &u128; - data_size = sizeof(uint128_t); - break; - case SDP_TEXT_STR8: - case SDP_TEXT_STR16: - case SDP_TEXT_STR32: - case SDP_URL_STR8: - case SDP_URL_STR16: - case SDP_URL_STR32: - src = (unsigned char *) d->val.str; - data_size = d->unitSize - sizeof(uint8_t); - sdp_set_seq_len(seqp, data_size); - break; - case SDP_SEQ8: - case SDP_SEQ16: - case SDP_SEQ32: - is_seq = 1; - data_size = get_data_size(buf, d); - sdp_set_seq_len(seqp, data_size); - break; - case SDP_ALT8: - case SDP_ALT16: - case SDP_ALT32: - is_alt = 1; - data_size = get_data_size(buf, d); - sdp_set_seq_len(seqp, data_size); - break; - case SDP_UUID16: - u16 = htons(d->val.uuid.value.uuid16); - src = (unsigned char *) &u16; - data_size = sizeof(uint16_t); - break; - case SDP_UUID32: - u32 = htonl(d->val.uuid.value.uuid32); - src = (unsigned char *) &u32; - data_size = sizeof(uint32_t); - break; - case SDP_UUID128: - src = (unsigned char *) &d->val.uuid.value.uuid128; - data_size = sizeof(uint128_t); - break; - default: - break; - } - - if (!is_seq && !is_alt) { - if (src && buf) { - memcpy(buf->data + buf->data_size, src, data_size); - buf->data_size += data_size; - } else if (dtd != SDP_DATA_NIL) - SDPDBG("Gen PDU : Cant copy from NULL source or dest\n"); - } - - pdu_size += data_size; - - return pdu_size; -} - -static void sdp_attr_pdu(void *value, void *udata) -{ - sdp_append_to_pdu((sdp_buf_t *)udata, (sdp_data_t *)value); -} - -int sdp_gen_record_pdu(const sdp_record_t *rec, sdp_buf_t *buf) -{ - buf->data = malloc(SDP_PDU_CHUNK_SIZE); - if (!buf->data) - return -ENOMEM; - - buf->buf_size = SDP_PDU_CHUNK_SIZE; - buf->data_size = 0; - memset(buf->data, 0, buf->buf_size); - sdp_list_foreach(rec->attrlist, sdp_attr_pdu, buf); - - return 0; -} - -void sdp_attr_replace(sdp_record_t *rec, uint16_t attr, sdp_data_t *d) -{ - sdp_data_t *p = sdp_data_get(rec, attr); - - if (p) { - rec->attrlist = sdp_list_remove(rec->attrlist, p); - sdp_data_free(p); - } - - d->attrId = attr; - rec->attrlist = sdp_list_insert_sorted(rec->attrlist, d, sdp_attrid_comp_func); - - if (attr == SDP_ATTR_SVCLASS_ID_LIST) - extract_svclass_uuid(d, &rec->svclass); -} - -int sdp_attrid_comp_func(const void *key1, const void *key2) -{ - const sdp_data_t *d1 = (const sdp_data_t *)key1; - const sdp_data_t *d2 = (const sdp_data_t *)key2; - - if (d1 && d2) - return d1->attrId - d2->attrId; - return 0; -} - -static void data_seq_free(sdp_data_t *seq) -{ - sdp_data_t *d = seq->val.dataseq; - - while (d) { - sdp_data_t *next = d->next; - sdp_data_free(d); - d = next; - } -} - -void sdp_data_free(sdp_data_t *d) -{ - switch (d->dtd) { - case SDP_SEQ8: - case SDP_SEQ16: - case SDP_SEQ32: - data_seq_free(d); - break; - case SDP_URL_STR8: - case SDP_URL_STR16: - case SDP_URL_STR32: - case SDP_TEXT_STR8: - case SDP_TEXT_STR16: - case SDP_TEXT_STR32: - free(d->val.str); - break; - } - free(d); -} - -int sdp_uuid_extract_safe(const uint8_t *p, int bufsize, uuid_t *uuid, int *scanned) -{ - uint8_t type; - - if (bufsize < sizeof(uint8_t)) { - SDPERR("Unexpected end of packet"); - return -1; - } - - type = *(const uint8_t *) p; - - if (!SDP_IS_UUID(type)) { - SDPERR("Unknown data type : %d expecting a svc UUID\n", type); - return -1; - } - p += sizeof(uint8_t); - *scanned += sizeof(uint8_t); - bufsize -= sizeof(uint8_t); - if (type == SDP_UUID16) { - if (bufsize < sizeof(uint16_t)) { - SDPERR("Not enough room for 16-bit UUID"); - return -1; - } - sdp_uuid16_create(uuid, ntohs(bt_get_unaligned((uint16_t *) p))); - *scanned += sizeof(uint16_t); - p += sizeof(uint16_t); - } else if (type == SDP_UUID32) { - if (bufsize < sizeof(uint32_t)) { - SDPERR("Not enough room for 32-bit UUID"); - return -1; - } - sdp_uuid32_create(uuid, ntohl(bt_get_unaligned((uint32_t *) p))); - *scanned += sizeof(uint32_t); - p += sizeof(uint32_t); - } else { - if (bufsize < sizeof(uint128_t)) { - SDPERR("Not enough room for 128-bit UUID"); - return -1; - } - sdp_uuid128_create(uuid, p); - *scanned += sizeof(uint128_t); - p += sizeof(uint128_t); - } - return 0; -} - -int sdp_uuid_extract(const uint8_t *p, uuid_t *uuid, int *scanned) -{ - /* Assume p points to a buffer of size at least SDP_MAX_ATTR_LEN, - because we don't have any better information */ - return sdp_uuid_extract_safe(p, SDP_MAX_ATTR_LEN, uuid, scanned); -} - -static sdp_data_t *extract_int(const void *p, int bufsize, int *len) -{ - sdp_data_t *d; - - if (bufsize < sizeof(uint8_t)) { - SDPERR("Unexpected end of packet"); - return NULL; - } - - d = malloc(sizeof(sdp_data_t)); - - SDPDBG("Extracting integer\n"); - memset(d, 0, sizeof(sdp_data_t)); - d->dtd = *(uint8_t *) p; - p += sizeof(uint8_t); - *len += sizeof(uint8_t); - bufsize -= sizeof(uint8_t); - - switch (d->dtd) { - case SDP_DATA_NIL: - break; - case SDP_BOOL: - case SDP_INT8: - case SDP_UINT8: - if (bufsize < sizeof(uint8_t)) { - SDPERR("Unexpected end of packet"); - free(d); - return NULL; - } - *len += sizeof(uint8_t); - d->val.uint8 = *(uint8_t *) p; - break; - case SDP_INT16: - case SDP_UINT16: - if (bufsize < sizeof(uint16_t)) { - SDPERR("Unexpected end of packet"); - free(d); - return NULL; - } - *len += sizeof(uint16_t); - d->val.uint16 = ntohs(bt_get_unaligned((uint16_t *) p)); - break; - case SDP_INT32: - case SDP_UINT32: - if (bufsize < sizeof(uint32_t)) { - SDPERR("Unexpected end of packet"); - free(d); - return NULL; - } - *len += sizeof(uint32_t); - d->val.uint32 = ntohl(bt_get_unaligned((uint32_t *) p)); - break; - case SDP_INT64: - case SDP_UINT64: - if (bufsize < sizeof(uint64_t)) { - SDPERR("Unexpected end of packet"); - free(d); - return NULL; - } - *len += sizeof(uint64_t); - d->val.uint64 = ntoh64(bt_get_unaligned((uint64_t *) p)); - break; - case SDP_INT128: - case SDP_UINT128: - if (bufsize < sizeof(uint128_t)) { - SDPERR("Unexpected end of packet"); - free(d); - return NULL; - } - *len += sizeof(uint128_t); - ntoh128((uint128_t *) p, &d->val.uint128); - break; - default: - free(d); - d = NULL; - } - return d; -} - -static sdp_data_t *extract_uuid(const uint8_t *p, int bufsize, int *len, sdp_record_t *rec) -{ - sdp_data_t *d = malloc(sizeof(sdp_data_t)); - - SDPDBG("Extracting UUID"); - memset(d, 0, sizeof(sdp_data_t)); - if (sdp_uuid_extract_safe(p, bufsize, &d->val.uuid, len) < 0) { - free(d); - return NULL; - } - d->dtd = *(uint8_t *) p; - if (rec) - sdp_pattern_add_uuid(rec, &d->val.uuid); - return d; -} - -/* - * Extract strings from the PDU (could be service description and similar info) - */ -static sdp_data_t *extract_str(const void *p, int bufsize, int *len) -{ - char *s; - int n; - sdp_data_t *d; - - if (bufsize < sizeof(uint8_t)) { - SDPERR("Unexpected end of packet"); - return NULL; - } - - d = malloc(sizeof(sdp_data_t)); - - memset(d, 0, sizeof(sdp_data_t)); - d->dtd = *(uint8_t *) p; - p += sizeof(uint8_t); - *len += sizeof(uint8_t); - bufsize -= sizeof(uint8_t); - - switch (d->dtd) { - case SDP_TEXT_STR8: - case SDP_URL_STR8: - if (bufsize < sizeof(uint8_t)) { - SDPERR("Unexpected end of packet"); - free(d); - return NULL; - } - n = *(uint8_t *) p; - p += sizeof(uint8_t); - *len += sizeof(uint8_t); - bufsize -= sizeof(uint8_t); - break; - case SDP_TEXT_STR16: - case SDP_URL_STR16: - if (bufsize < sizeof(uint16_t)) { - SDPERR("Unexpected end of packet"); - free(d); - return NULL; - } - n = ntohs(bt_get_unaligned((uint16_t *) p)); - p += sizeof(uint16_t); - *len += sizeof(uint16_t) + n; - bufsize -= sizeof(uint16_t); - break; - default: - SDPERR("Sizeof text string > UINT16_MAX\n"); - free(d); - return 0; - } - - if (bufsize < n) { - SDPERR("String too long to fit in packet"); - free(d); - return NULL; - } - - s = malloc(n + 1); - if (!s) { - SDPERR("Not enough memory for incoming string"); - free(d); - return NULL; - } - memset(s, 0, n + 1); - memcpy(s, p, n); - - *len += n; - - SDPDBG("Len : %d\n", n); - SDPDBG("Str : %s\n", s); - - d->val.str = s; - d->unitSize = n + sizeof(uint8_t); - return d; -} - -/* - * Extract the sequence type and its length, and return offset into buf - * or 0 on failure. - */ -int sdp_extract_seqtype_safe(const uint8_t *buf, int bufsize, uint8_t *dtdp, int *size) -{ - uint8_t dtd; - int scanned = sizeof(uint8_t); - - if (bufsize < sizeof(uint8_t)) { - SDPERR("Unexpected end of packet"); - return 0; - } - - dtd = *(uint8_t *) buf; - buf += sizeof(uint8_t); - bufsize -= sizeof(uint8_t); - *dtdp = dtd; - switch (dtd) { - case SDP_SEQ8: - case SDP_ALT8: - if (bufsize < sizeof(uint8_t)) { - SDPERR("Unexpected end of packet"); - return 0; - } - *size = *(uint8_t *) buf; - scanned += sizeof(uint8_t); - break; - case SDP_SEQ16: - case SDP_ALT16: - if (bufsize < sizeof(uint16_t)) { - SDPERR("Unexpected end of packet"); - return 0; - } - *size = ntohs(bt_get_unaligned((uint16_t *) buf)); - scanned += sizeof(uint16_t); - break; - case SDP_SEQ32: - case SDP_ALT32: - if (bufsize < sizeof(uint32_t)) { - SDPERR("Unexpected end of packet"); - return 0; - } - *size = ntohl(bt_get_unaligned((uint32_t *) buf)); - scanned += sizeof(uint32_t); - break; - default: - SDPERR("Unknown sequence type, aborting\n"); - return 0; - } - return scanned; -} - -int sdp_extract_seqtype(const uint8_t *buf, uint8_t *dtdp, int *size) -{ - /* Assume buf points to a buffer of size at least SDP_MAX_ATTR_LEN, - because we don't have any better information */ - return sdp_extract_seqtype_safe(buf, SDP_MAX_ATTR_LEN, dtdp, size); -} - -static sdp_data_t *extract_seq(const void *p, int bufsize, int *len, sdp_record_t *rec) -{ - int seqlen, n = 0; - sdp_data_t *curr, *prev; - sdp_data_t *d = malloc(sizeof(sdp_data_t)); - - SDPDBG("Extracting SEQ"); - memset(d, 0, sizeof(sdp_data_t)); - *len = sdp_extract_seqtype_safe(p, bufsize, &d->dtd, &seqlen); - SDPDBG("Sequence Type : 0x%x length : 0x%x\n", d->dtd, seqlen); - - if (*len == 0) - return d; - - if (*len > bufsize) { - SDPERR("Packet not big enough to hold sequence."); - free(d); - return NULL; - } - - p += *len; - bufsize -= *len; - curr = prev = NULL; - while (n < seqlen) { - int attrlen = 0; - curr = sdp_extract_attr_safe(p, bufsize, &attrlen, rec); - if (curr == NULL) - break; - - if (prev) - prev->next = curr; - else - d->val.dataseq = curr; - prev = curr; - p += attrlen; - n += attrlen; - bufsize -= attrlen; - - SDPDBG("Extracted: %d SequenceLength: %d", n, seqlen); - } - - *len += n; - return d; -} - -sdp_data_t *sdp_extract_attr_safe(const uint8_t *p, int bufsize, int *size, sdp_record_t *rec) -{ - sdp_data_t *elem; - int n = 0; - uint8_t dtd; - - if (bufsize < sizeof(uint8_t)) { - SDPERR("Unexpected end of packet"); - return NULL; - } - - dtd = *(const uint8_t *)p; - - SDPDBG("extract_attr: dtd=0x%x", dtd); - switch (dtd) { - case SDP_DATA_NIL: - case SDP_BOOL: - case SDP_UINT8: - case SDP_UINT16: - case SDP_UINT32: - case SDP_UINT64: - case SDP_UINT128: - case SDP_INT8: - case SDP_INT16: - case SDP_INT32: - case SDP_INT64: - case SDP_INT128: - elem = extract_int(p, bufsize, &n); - break; - case SDP_UUID16: - case SDP_UUID32: - case SDP_UUID128: - elem = extract_uuid(p, bufsize, &n, rec); - break; - case SDP_TEXT_STR8: - case SDP_TEXT_STR16: - case SDP_TEXT_STR32: - case SDP_URL_STR8: - case SDP_URL_STR16: - case SDP_URL_STR32: - elem = extract_str(p, bufsize, &n); - break; - case SDP_SEQ8: - case SDP_SEQ16: - case SDP_SEQ32: - case SDP_ALT8: - case SDP_ALT16: - case SDP_ALT32: - elem = extract_seq(p, bufsize, &n, rec); - break; - default: - SDPERR("Unknown data descriptor : 0x%x terminating\n", dtd); - return NULL; - } - *size += n; - return elem; -} - -sdp_data_t *sdp_extract_attr(const uint8_t *p, int *size, sdp_record_t *rec) -{ - /* Assume p points to a buffer of size at least SDP_MAX_ATTR_LEN, - because we don't have any better information */ - return sdp_extract_attr_safe(p, SDP_MAX_ATTR_LEN, size, rec); -} - -#ifdef SDP_DEBUG -static void attr_print_func(void *value, void *userData) -{ - sdp_data_t *d = (sdp_data_t *)value; - - SDPDBG("=====================================\n"); - SDPDBG("ATTRIBUTE IDENTIFIER : 0x%x\n", d->attrId); - SDPDBG("ATTRIBUTE VALUE PTR : 0x%x\n", (uint32_t)value); - if (d) - sdp_data_print(d); - else - SDPDBG("NULL value\n"); - SDPDBG("=====================================\n"); -} - -void sdp_print_service_attr(sdp_list_t *svcAttrList) -{ - SDPDBG("Printing service attr list %p\n", svcAttrList); - sdp_list_foreach(svcAttrList, attr_print_func, NULL); - SDPDBG("Printed service attr list %p\n", svcAttrList); -} -#endif - -sdp_record_t *sdp_extract_pdu_safe(const uint8_t *buf, int bufsize, int *scanned) -{ - int extracted = 0, seqlen = 0; - uint8_t dtd; - uint16_t attr; - sdp_record_t *rec = sdp_record_alloc(); - const uint8_t *p = buf; - - *scanned = sdp_extract_seqtype_safe(buf, bufsize, &dtd, &seqlen); - p += *scanned; - bufsize -= *scanned; - rec->attrlist = NULL; - - while (extracted < seqlen && bufsize > 0) { - int n = sizeof(uint8_t), attrlen = 0; - sdp_data_t *data = NULL; - - SDPDBG("Extract PDU, sequenceLength: %d localExtractedLength: %d", - seqlen, extracted); - - if (bufsize < n + sizeof(uint16_t)) { - SDPERR("Unexpected end of packet"); - break; - } - - dtd = *(uint8_t *) p; - attr = ntohs(bt_get_unaligned((uint16_t *) (p + n))); - n += sizeof(uint16_t); - - SDPDBG("DTD of attrId : %d Attr id : 0x%x \n", dtd, attr); - - data = sdp_extract_attr_safe(p + n, bufsize - n, &attrlen, rec); - - SDPDBG("Attr id : 0x%x attrValueLength : %d\n", attr, attrlen); - - n += attrlen; - if (data == NULL) { - SDPDBG("Terminating extraction of attributes"); - break; - } - - if (attr == SDP_ATTR_RECORD_HANDLE) - rec->handle = data->val.uint32; - - if (attr == SDP_ATTR_SVCLASS_ID_LIST) - extract_svclass_uuid(data, &rec->svclass); - - extracted += n; - p += n; - bufsize -= n; - sdp_attr_replace(rec, attr, data); - - SDPDBG("Extract PDU, seqLength: %d localExtractedLength: %d", - seqlen, extracted); - } -#ifdef SDP_DEBUG - SDPDBG("Successful extracting of Svc Rec attributes\n"); - sdp_print_service_attr(rec->attrlist); -#endif - *scanned += seqlen; - return rec; -} - -sdp_record_t *sdp_extract_pdu(const uint8_t *buf, int *scanned) -{ - /* Assume buf points to a buffer of size at least SDP_MAX_ATTR_LEN, - because we don't have any better information */ - return sdp_extract_pdu_safe(buf, SDP_MAX_ATTR_LEN, scanned); -} - -#ifdef SDP_DEBUG -static void print_dataseq(sdp_data_t *p) -{ - sdp_data_t *d; - - for (d = p; d; d = d->next) - sdp_data_print(d); -} -#endif - -void sdp_record_print(const sdp_record_t *rec) -{ - sdp_data_t *d = sdp_data_get(rec, SDP_ATTR_SVCNAME_PRIMARY); - if (d) - printf("Service Name: %.*s\n", d->unitSize, d->val.str); - d = sdp_data_get(rec, SDP_ATTR_SVCDESC_PRIMARY); - if (d) - printf("Service Description: %.*s\n", d->unitSize, d->val.str); - d = sdp_data_get(rec, SDP_ATTR_PROVNAME_PRIMARY); - if (d) - printf("Service Provider: %.*s\n", d->unitSize, d->val.str); -} - -#ifdef SDP_DEBUG -void sdp_data_print(sdp_data_t *d) -{ - switch (d->dtd) { - case SDP_DATA_NIL: - SDPDBG("NIL\n"); - break; - case SDP_BOOL: - case SDP_UINT8: - case SDP_UINT16: - case SDP_UINT32: - case SDP_UINT64: - case SDP_UINT128: - case SDP_INT8: - case SDP_INT16: - case SDP_INT32: - case SDP_INT64: - case SDP_INT128: - SDPDBG("Integer : 0x%x\n", d->val.uint32); - break; - case SDP_UUID16: - case SDP_UUID32: - case SDP_UUID128: - SDPDBG("UUID\n"); - sdp_uuid_print(&d->val.uuid); - break; - case SDP_TEXT_STR8: - case SDP_TEXT_STR16: - case SDP_TEXT_STR32: - SDPDBG("Text : %s\n", d->val.str); - break; - case SDP_URL_STR8: - case SDP_URL_STR16: - case SDP_URL_STR32: - SDPDBG("URL : %s\n", d->val.str); - break; - case SDP_SEQ8: - case SDP_SEQ16: - case SDP_SEQ32: - print_dataseq(d->val.dataseq); - break; - case SDP_ALT8: - case SDP_ALT16: - case SDP_ALT32: - SDPDBG("Data Sequence Alternates\n"); - print_dataseq(d->val.dataseq); - break; - } -} -#endif - -sdp_data_t *sdp_data_get(const sdp_record_t *rec, uint16_t attrId) -{ - if (rec->attrlist) { - sdp_data_t sdpTemplate; - sdp_list_t *p; - - sdpTemplate.attrId = attrId; - p = sdp_list_find(rec->attrlist, &sdpTemplate, sdp_attrid_comp_func); - if (p) - return (sdp_data_t *)p->data; - } - return NULL; -} - -int sdp_send_req(sdp_session_t *session, uint8_t *buf, uint32_t size) -{ - uint32_t sent = 0; - - while (sent < size) { - int n = send(session->sock, buf + sent, size - sent, 0); - if (n < 0) - return -1; - sent += n; - } - return 0; -} - -int sdp_read_rsp(sdp_session_t *session, uint8_t *buf, uint32_t size) -{ - fd_set readFds; - struct timeval timeout = { SDP_RESPONSE_TIMEOUT, 0 }; - - FD_ZERO(&readFds); - FD_SET(session->sock, &readFds); - SDPDBG("Waiting for response\n"); - if (select(session->sock + 1, &readFds, NULL, NULL, &timeout) == 0) { - SDPERR("Client timed out\n"); - errno = ETIMEDOUT; - return -1; - } - return recv(session->sock, buf, size, 0); -} - -/* - * generic send request, wait for response method. - */ -int sdp_send_req_w4_rsp(sdp_session_t *session, uint8_t *reqbuf, uint8_t *rspbuf, uint32_t reqsize, uint32_t *rspsize) -{ - int n; - sdp_pdu_hdr_t *reqhdr = (sdp_pdu_hdr_t *)reqbuf; - sdp_pdu_hdr_t *rsphdr = (sdp_pdu_hdr_t *)rspbuf; - - SDPDBG(""); - if (0 > sdp_send_req(session, reqbuf, reqsize)) { - SDPERR("Error sending data:%s", strerror(errno)); - return -1; - } - n = sdp_read_rsp(session, rspbuf, SDP_RSP_BUFFER_SIZE); - if (0 > n) - return -1; - SDPDBG("Read : %d\n", n); - if (n == 0 || reqhdr->tid != rsphdr->tid) { - errno = EPROTO; - return -1; - } - *rspsize = n; - return 0; -} - -/* - * singly-linked lists (after openobex implementation) - */ -sdp_list_t *sdp_list_append(sdp_list_t *p, void *d) -{ - sdp_list_t *q, *n = malloc(sizeof(sdp_list_t)); - - if (!n) - return 0; - - n->data = d; - n->next = 0; - - if (!p) - return n; - - for (q = p; q->next; q = q->next); - q->next = n; - - return p; -} - -sdp_list_t *sdp_list_remove(sdp_list_t *list, void *d) -{ - sdp_list_t *p, *q; - - for (q = 0, p = list; p; q = p, p = p->next) - if (p->data == d) { - if (q) - q->next = p->next; - else - list = p->next; - free(p); - break; - } - - return list; -} - -sdp_list_t *sdp_list_insert_sorted(sdp_list_t *list, void *d, sdp_comp_func_t f) -{ - sdp_list_t *q, *p, *n; - - n = malloc(sizeof(sdp_list_t)); - if (!n) - return 0; - n->data = d; - for (q = 0, p = list; p; q = p, p = p->next) - if (f(p->data, d) >= 0) - break; - // insert between q and p; if !q insert at head - if (q) - q->next = n; - else - list = n; - n->next = p; - return list; -} - -/* - * Every element of the list points to things which need - * to be free()'d. This method frees the list's contents - */ -void sdp_list_free(sdp_list_t *list, sdp_free_func_t f) -{ - sdp_list_t *next; - while (list) { - next = list->next; - if (f) - f(list->data); - free(list); - list = next; - } -} - -static inline int __find_port(sdp_data_t *seq, int proto) -{ - if (!seq || !seq->next) - return 0; - - if (SDP_IS_UUID(seq->dtd) && sdp_uuid_to_proto(&seq->val.uuid) == proto) { - seq = seq->next; - switch (seq->dtd) { - case SDP_UINT8: - return seq->val.uint8; - case SDP_UINT16: - return seq->val.uint16; - } - } - return 0; -} - -int sdp_get_proto_port(const sdp_list_t *list, int proto) -{ - if (proto != L2CAP_UUID && proto != RFCOMM_UUID) { - errno = EINVAL; - return -1; - } - - for (; list; list = list->next) { - sdp_list_t *p; - for (p = list->data; p; p = p->next) { - sdp_data_t *seq = (sdp_data_t *) p->data; - int port = __find_port(seq, proto); - if (port) - return port; - } - } - return 0; -} - -sdp_data_t *sdp_get_proto_desc(sdp_list_t *list, int proto) -{ - for (; list; list = list->next) { - sdp_list_t *p; - for (p = list->data; p; p = p->next) { - sdp_data_t *seq = (sdp_data_t *) p->data; - if (SDP_IS_UUID(seq->dtd) && - sdp_uuid_to_proto(&seq->val.uuid) == proto) - return seq->next; - } - } - return NULL; -} - -int sdp_get_access_protos(const sdp_record_t *rec, sdp_list_t **pap) -{ - sdp_data_t *pdlist, *curr; - sdp_list_t *ap = 0; - - pdlist = sdp_data_get(rec, SDP_ATTR_PROTO_DESC_LIST); - if (pdlist == NULL) { - errno = ENODATA; - return -1; - } - SDPDBG("AP type : 0%x\n", pdlist->dtd); - - for (; pdlist; pdlist = pdlist->next) { - sdp_list_t *pds = 0; - for (curr = pdlist->val.dataseq; curr; curr = curr->next) - pds = sdp_list_append(pds, curr->val.dataseq); - ap = sdp_list_append(ap, pds); - } - *pap = ap; - return 0; -} - -int sdp_get_add_access_protos(const sdp_record_t *rec, sdp_list_t **pap) -{ - sdp_data_t *pdlist, *curr; - sdp_list_t *ap = 0; - - pdlist = sdp_data_get(rec, SDP_ATTR_ADD_PROTO_DESC_LIST); - if (pdlist == NULL) { - errno = ENODATA; - return -1; - } - SDPDBG("AP type : 0%x\n", pdlist->dtd); - - pdlist = pdlist->val.dataseq; - - for (; pdlist; pdlist = pdlist->next) { - sdp_list_t *pds = 0; - for (curr = pdlist->val.dataseq; curr; curr = curr->next) - pds = sdp_list_append(pds, curr->val.dataseq); - ap = sdp_list_append(ap, pds); - } - *pap = ap; - return 0; -} - -int sdp_get_uuidseq_attr(const sdp_record_t *rec, uint16_t attr, sdp_list_t **seqp) -{ - sdp_data_t *sdpdata = sdp_data_get(rec, attr); - - *seqp = NULL; - if (sdpdata && sdpdata->dtd >= SDP_SEQ8 && sdpdata->dtd <= SDP_SEQ32) { - sdp_data_t *d; - for (d = sdpdata->val.dataseq; d; d = d->next) { - uuid_t *u; - if (d->dtd < SDP_UUID16 || d->dtd > SDP_UUID128) - goto fail; - - u = malloc(sizeof(uuid_t)); - memset(u, 0, sizeof(uuid_t)); - *u = d->val.uuid; - *seqp = sdp_list_append(*seqp, u); - } - return 0; - } -fail: - sdp_list_free(*seqp, free); - errno = EINVAL; - return -1; -} - -int sdp_set_uuidseq_attr(sdp_record_t *rec, uint16_t aid, sdp_list_t *seq) -{ - int status = 0, i, len; - void **dtds, **values; - uint8_t uuid16 = SDP_UUID16; - uint8_t uuid32 = SDP_UUID32; - uint8_t uuid128 = SDP_UUID128; - sdp_list_t *p; - - len = sdp_list_len(seq); - if (!seq || len == 0) - return -1; - dtds = (void **)malloc(len * sizeof(void *)); - values = (void **)malloc(len * sizeof(void *)); - for (p = seq, i = 0; i < len; i++, p = p->next) { - uuid_t *uuid = (uuid_t *)p->data; - if (uuid) - switch (uuid->type) { - case SDP_UUID16: - dtds[i] = &uuid16; - values[i] = &uuid->value.uuid16; - break; - case SDP_UUID32: - dtds[i] = &uuid32; - values[i] = &uuid->value.uuid32; - break; - case SDP_UUID128: - dtds[i] = &uuid128; - values[i] = &uuid->value.uuid128; - break; - default: - status = -1; - break; - } - else { - status = -1; - break; - } - } - if (status == 0) { - sdp_data_t *data = sdp_seq_alloc(dtds, values, len); - sdp_attr_replace(rec, aid, data); - sdp_pattern_add_uuidseq(rec, seq); - } - free(dtds); - free(values); - return status; -} - -int sdp_get_lang_attr(const sdp_record_t *rec, sdp_list_t **langSeq) -{ - sdp_lang_attr_t *lang; - sdp_data_t *sdpdata, *curr_data; - - *langSeq = NULL; - sdpdata = sdp_data_get(rec, SDP_ATTR_LANG_BASE_ATTR_ID_LIST); - if (sdpdata == NULL) { - errno = ENODATA; - return -1; - } - curr_data = sdpdata->val.dataseq; - while (curr_data) { - sdp_data_t *pCode = curr_data; - sdp_data_t *pEncoding = pCode->next; - sdp_data_t *pOffset = pEncoding->next; - if (pCode && pEncoding && pOffset) { - lang = malloc(sizeof(sdp_lang_attr_t)); - lang->code_ISO639 = pCode->val.uint16; - lang->encoding = pEncoding->val.uint16; - lang->base_offset = pOffset->val.uint16; - SDPDBG("code_ISO639 : 0x%02x\n", lang->code_ISO639); - SDPDBG("encoding : 0x%02x\n", lang->encoding); - SDPDBG("base_offfset : 0x%02x\n", lang->base_offset); - *langSeq = sdp_list_append(*langSeq, lang); - } - curr_data = pOffset->next; - } - return 0; -} - -int sdp_get_profile_descs(const sdp_record_t *rec, sdp_list_t **profDescSeq) -{ - sdp_profile_desc_t *profDesc; - sdp_data_t *sdpdata, *seq; - - *profDescSeq = NULL; - sdpdata = sdp_data_get(rec, SDP_ATTR_PFILE_DESC_LIST); - if (!sdpdata || !sdpdata->val.dataseq) { - errno = ENODATA; - return -1; - } - for (seq = sdpdata->val.dataseq; seq && seq->val.dataseq; seq = seq->next) { - uuid_t *uuid = NULL; - uint16_t version = 0x100; - - if (SDP_IS_UUID(seq->dtd)) { - uuid = &seq->val.uuid; - } else { - sdp_data_t *puuid = seq->val.dataseq; - sdp_data_t *pVnum = seq->val.dataseq->next; - if (puuid && pVnum) { - uuid = &puuid->val.uuid; - version = pVnum->val.uint16; - } - } - - if (uuid != NULL) { - profDesc = malloc(sizeof(sdp_profile_desc_t)); - profDesc->uuid = *uuid; - profDesc->version = version; -#ifdef SDP_DEBUG - sdp_uuid_print(&profDesc->uuid); - SDPDBG("Vnum : 0x%04x\n", profDesc->version); -#endif - *profDescSeq = sdp_list_append(*profDescSeq, profDesc); - } - } - return 0; -} - -int sdp_get_server_ver(const sdp_record_t *rec, sdp_list_t **u16) -{ - sdp_data_t *d, *curr; - - *u16 = NULL; - d = sdp_data_get(rec, SDP_ATTR_VERSION_NUM_LIST); - if (d == NULL) { - errno = ENODATA; - return -1; - } - for (curr = d->val.dataseq; curr; curr = curr->next) - *u16 = sdp_list_append(*u16, &curr->val.uint16); - return 0; -} - -/* flexible extraction of basic attributes - Jean II */ -/* How do we expect caller to extract predefined data sequences? */ -int sdp_get_int_attr(const sdp_record_t *rec, uint16_t attrid, int *value) -{ - sdp_data_t *sdpdata = sdp_data_get(rec, attrid); - - if (sdpdata) - /* Verify that it is what the caller expects */ - if (sdpdata->dtd == SDP_BOOL || sdpdata->dtd == SDP_UINT8 || - sdpdata->dtd == SDP_UINT16 || sdpdata->dtd == SDP_UINT32 || - sdpdata->dtd == SDP_INT8 || sdpdata->dtd == SDP_INT16 || - sdpdata->dtd == SDP_INT32) { - *value = sdpdata->val.uint32; - return 0; - } - errno = EINVAL; - return -1; -} - -int sdp_get_string_attr(const sdp_record_t *rec, uint16_t attrid, char *value, int valuelen) -{ - sdp_data_t *sdpdata = sdp_data_get(rec, attrid); - if (sdpdata) - /* Verify that it is what the caller expects */ - if (sdpdata->dtd == SDP_TEXT_STR8 || sdpdata->dtd == SDP_TEXT_STR16 || sdpdata->dtd == SDP_TEXT_STR32) - if (strlen(sdpdata->val.str) < valuelen) { - strcpy(value, sdpdata->val.str); - return 0; - } - errno = EINVAL; - return -1; -} - -#define get_basic_attr(attrID, pAttrValue, fieldName) \ - sdp_data_t *data = sdp_data_get(rec, attrID); \ - if (data) { \ - *pAttrValue = data->val.fieldName; \ - return 0; \ - } \ - errno = EINVAL; \ - return -1; - -int sdp_get_service_id(const sdp_record_t *rec, uuid_t *uuid) -{ - get_basic_attr(SDP_ATTR_SERVICE_ID, uuid, uuid); -} - -int sdp_get_group_id(const sdp_record_t *rec, uuid_t *uuid) -{ - get_basic_attr(SDP_ATTR_GROUP_ID, uuid, uuid); -} - -int sdp_get_record_state(const sdp_record_t *rec, uint32_t *svcRecState) -{ - get_basic_attr(SDP_ATTR_RECORD_STATE, svcRecState, uint32); -} - -int sdp_get_service_avail(const sdp_record_t *rec, uint8_t *svcAvail) -{ - get_basic_attr(SDP_ATTR_SERVICE_AVAILABILITY, svcAvail, uint8); -} - -int sdp_get_service_ttl(const sdp_record_t *rec, uint32_t *svcTTLInfo) -{ - get_basic_attr(SDP_ATTR_SVCINFO_TTL, svcTTLInfo, uint32); -} - -int sdp_get_database_state(const sdp_record_t *rec, uint32_t *svcDBState) -{ - get_basic_attr(SDP_ATTR_SVCDB_STATE, svcDBState, uint32); -} - -/* - * NOTE that none of the setXXX() functions below will - * actually update the SDP server, unless the - * {register, update}sdp_record_t() function is invoked. - */ - -int sdp_attr_add_new(sdp_record_t *rec, uint16_t attr, uint8_t dtd, const void *value) -{ - sdp_data_t *d = sdp_data_alloc(dtd, value); - if (d) { - sdp_attr_replace(rec, attr, d); - return 0; - } - return -1; -} - -/* - * Set the information attributes of the service - * pointed to by rec. The attributes are - * service name, description and provider name - */ -void sdp_set_info_attr(sdp_record_t *rec, const char *name, const char *prov, const char *desc) -{ - if (name) - sdp_attr_add_new(rec, SDP_ATTR_SVCNAME_PRIMARY, SDP_TEXT_STR8, (void *)name); - if (prov) - sdp_attr_add_new(rec, SDP_ATTR_PROVNAME_PRIMARY, SDP_TEXT_STR8, (void *)prov); - if (desc) - sdp_attr_add_new(rec, SDP_ATTR_SVCDESC_PRIMARY, SDP_TEXT_STR8, (void *)desc); -} - -static sdp_data_t *access_proto_to_dataseq(sdp_record_t *rec, sdp_list_t *proto) -{ - sdp_data_t *seq = NULL; - void *dtds[10], *values[10]; - void **seqDTDs, **seqs; - int i, seqlen; - sdp_list_t *p; - - seqlen = sdp_list_len(proto); - seqDTDs = (void **)malloc(seqlen * sizeof(void *)); - seqs = (void **)malloc(seqlen * sizeof(void *)); - for (i = 0, p = proto; p; p = p->next, i++) { - sdp_list_t *elt = (sdp_list_t *)p->data; - sdp_data_t *s; - int pslen = 0; - for (; elt && pslen < sizeof(dtds); elt = elt->next, pslen++) { - sdp_data_t *d = (sdp_data_t *)elt->data; - dtds[pslen] = &d->dtd; - switch (d->dtd) { - case SDP_UUID16: - values[pslen] = &((uuid_t *)d)->value.uuid16; - break; - case SDP_UUID32: - values[pslen] = &((uuid_t *)d)->value.uuid32; - break; - case SDP_UUID128: - values[pslen] = &((uuid_t *)d)->value.uuid128; - break; - case SDP_UINT8: - values[pslen] = &d->val.uint8; - break; - case SDP_UINT16: - values[pslen] = &d->val.uint16; - break; - case SDP_SEQ8: - case SDP_SEQ16: - case SDP_SEQ32: - values[pslen] = d; - break; - // FIXME: more - } - } - s = sdp_seq_alloc(dtds, values, pslen); - if (s) { - seqDTDs[i] = &s->dtd; - seqs[i] = s; - } - } - seq = sdp_seq_alloc(seqDTDs, seqs, seqlen); - free(seqDTDs); - free(seqs); - return seq; -} - -/* - * sets the access protocols of the service specified - * to the value specified in "access_proto" - * - * Note that if there are alternate mechanisms by - * which the service is accessed, then they should - * be specified as sequences - * - * Using a value of NULL for accessProtocols has - * effect of removing this attribute (if previously set) - * - * This function replaces the existing sdp_access_proto_t - * structure (if any) with the new one specified. - * - * returns 0 if successful or -1 if there is a failure. - */ -int sdp_set_access_protos(sdp_record_t *rec, const sdp_list_t *ap) -{ - const sdp_list_t *p; - sdp_data_t *protos = NULL; - - for (p = ap; p; p = p->next) { - sdp_data_t *seq = access_proto_to_dataseq(rec, (sdp_list_t *) p->data); - protos = sdp_seq_append(protos, seq); - } - - sdp_attr_add(rec, SDP_ATTR_PROTO_DESC_LIST, protos); - - return 0; -} - -int sdp_set_add_access_protos(sdp_record_t *rec, const sdp_list_t *ap) -{ - const sdp_list_t *p; - sdp_data_t *protos = NULL; - - for (p = ap; p; p = p->next) { - sdp_data_t *seq = access_proto_to_dataseq(rec, (sdp_list_t *) p->data); - protos = sdp_seq_append(protos, seq); - } - - sdp_attr_add(rec, SDP_ATTR_ADD_PROTO_DESC_LIST, - protos ? sdp_data_alloc(SDP_SEQ8, protos) : NULL); - - return 0; -} - -/* - * set the "LanguageBase" attributes of the service record - * record to the value specified in "langAttrList". - * - * "langAttrList" is a linked list of "sdp_lang_attr_t" - * objects, one for each language in which user visible - * attributes are present in the service record. - * - * Using a value of NULL for langAttrList has - * effect of removing this attribute (if previously set) - * - * This function replaces the exisiting sdp_lang_attr_t - * structure (if any) with the new one specified. - * - * returns 0 if successful or -1 if there is a failure. - */ -int sdp_set_lang_attr(sdp_record_t *rec, const sdp_list_t *seq) -{ - uint8_t uint16 = SDP_UINT16; - int status = 0, i = 0, seqlen = sdp_list_len(seq); - void **dtds = (void **)malloc(3 * seqlen * sizeof(void *)); - void **values = (void **)malloc(3 * seqlen * sizeof(void *)); - const sdp_list_t *p; - - for (p = seq; p; p = p->next) { - sdp_lang_attr_t *lang = (sdp_lang_attr_t *)p->data; - if (!lang) { - status = -1; - break; - } - dtds[i] = &uint16; - values[i] = &lang->code_ISO639; - i++; - dtds[i] = &uint16; - values[i] = &lang->encoding; - i++; - dtds[i] = &uint16; - values[i] = &lang->base_offset; - i++; - } - if (status == 0) { - sdp_data_t *seq = sdp_seq_alloc(dtds, values, 3 * seqlen); - sdp_attr_add(rec, SDP_ATTR_LANG_BASE_ATTR_ID_LIST, seq); - } - free(dtds); - free(values); - return status; -} - -/* - * set the "ServiceID" attribute of the service. - * - * This is the UUID of the service. - * - * returns 0 if successful or -1 if there is a failure. - */ -void sdp_set_service_id(sdp_record_t *rec, uuid_t uuid) -{ - switch (uuid.type) { - case SDP_UUID16: - sdp_attr_add_new(rec, SDP_ATTR_SERVICE_ID, SDP_UUID16, &uuid.value.uuid16); - break; - case SDP_UUID32: - sdp_attr_add_new(rec, SDP_ATTR_SERVICE_ID, SDP_UUID32, &uuid.value.uuid32); - break; - case SDP_UUID128: - sdp_attr_add_new(rec, SDP_ATTR_SERVICE_ID, SDP_UUID128, &uuid.value.uuid128); - break; - } - sdp_pattern_add_uuid(rec, &uuid); -} - -/* - * set the GroupID attribute of the service record defining a group. - * - * This is the UUID of the group. - * - * returns 0 if successful or -1 if there is a failure. - */ -void sdp_set_group_id(sdp_record_t *rec, uuid_t uuid) -{ - switch (uuid.type) { - case SDP_UUID16: - sdp_attr_add_new(rec, SDP_ATTR_GROUP_ID, SDP_UUID16, &uuid.value.uuid16); - break; - case SDP_UUID32: - sdp_attr_add_new(rec, SDP_ATTR_GROUP_ID, SDP_UUID32, &uuid.value.uuid32); - break; - case SDP_UUID128: - sdp_attr_add_new(rec, SDP_ATTR_GROUP_ID, SDP_UUID128, &uuid.value.uuid128); - break; - } - sdp_pattern_add_uuid(rec, &uuid); -} - -/* - * set the ProfileDescriptorList attribute of the service record - * pointed to by record to the value specified in "profileDesc". - * - * Each element in the list is an object of type - * sdp_profile_desc_t which is a definition of the - * Bluetooth profile that this service conforms to. - * - * Using a value of NULL for profileDesc has - * effect of removing this attribute (if previously set) - * - * This function replaces the exisiting ProfileDescriptorList - * structure (if any) with the new one specified. - * - * returns 0 if successful or -1 if there is a failure. - */ -int sdp_set_profile_descs(sdp_record_t *rec, const sdp_list_t *profiles) -{ - int status = 0; - uint8_t uuid16 = SDP_UUID16; - uint8_t uuid32 = SDP_UUID32; - uint8_t uuid128 = SDP_UUID128; - uint8_t uint16 = SDP_UINT16; - int i = 0, seqlen = sdp_list_len(profiles); - void **seqDTDs = (void **)malloc(seqlen * sizeof(void *)); - void **seqs = (void **)malloc(seqlen * sizeof(void *)); - const sdp_list_t *p; - - for (p = profiles; p; p = p->next) { - sdp_data_t *seq; - void *dtds[2], *values[2]; - sdp_profile_desc_t *profile = (sdp_profile_desc_t *)p->data; - if (!profile) { - status = -1; - break; - } - switch (profile->uuid.type) { - case SDP_UUID16: - dtds[0] = &uuid16; - values[0] = &profile->uuid.value.uuid16; - break; - case SDP_UUID32: - dtds[0] = &uuid32; - values[0] = &profile->uuid.value.uuid32; - break; - case SDP_UUID128: - dtds[0] = &uuid128; - values[0] = &profile->uuid.value.uuid128; - break; - default: - status = -1; - break; - } - dtds[1] = &uint16; - values[1] = &profile->version; - seq = sdp_seq_alloc(dtds, values, 2); - if (seq) { - seqDTDs[i] = &seq->dtd; - seqs[i] = seq; - sdp_pattern_add_uuid(rec, &profile->uuid); - } - i++; - } - if (status == 0) { - sdp_data_t *pAPSeq = sdp_seq_alloc(seqDTDs, seqs, seqlen); - sdp_attr_add(rec, SDP_ATTR_PFILE_DESC_LIST, pAPSeq); - } - free(seqDTDs); - free(seqs); - return status; -} - -/* - * sets various URL attributes of the service - * pointed to by record. The URL include - * - * client: a URL to the client's - * platform specific (WinCE, PalmOS) executable - * code that can be used to access this service. - * - * doc: a URL pointing to service documentation - * - * icon: a URL to an icon that can be used to represent - * this service. - * - * Note that you need to pass NULL for any URLs - * that you don't want to set or remove - */ -void sdp_set_url_attr(sdp_record_t *rec, const char *client, const char *doc, const char *icon) -{ - sdp_attr_add_new(rec, SDP_ATTR_CLNT_EXEC_URL, SDP_URL_STR8, client); - sdp_attr_add_new(rec, SDP_ATTR_DOC_URL, SDP_URL_STR8, doc); - sdp_attr_add_new(rec, SDP_ATTR_ICON_URL, SDP_URL_STR8, icon); -} - -/* - * The code in this function is executed only once per - * thread. We compute the actual bit value of the Bluetooth - * base UUID which is a string defined in bt_std_values.h - * and is assumed to be of the standard form with "-" separators. - * - * The algorithm however converts the string to 4 unsigned longs - * using the strtoul() and assigns the values in sequence to - * the 128bit value - */ -uint128_t *sdp_create_base_uuid(void) -{ - uint128_t *base_uuid; - char baseStr[128]; - int delim = '-'; - unsigned long dataLongValue; - char *delimPtr; - char *dataPtr; - char temp[10]; - int toBeCopied; - uint8_t *data; - - strcpy(baseStr, BASE_UUID); - base_uuid = malloc(sizeof(uint128_t)); - if (!base_uuid) - return NULL; - - data = base_uuid->data; - memset(data, '\0', sizeof(uint128_t)); - memset(temp, '\0', 10); - dataPtr = baseStr; - delimPtr = NULL; - delimPtr = strchr(dataPtr, delim); - toBeCopied = delimPtr - dataPtr; - if (toBeCopied != 8) { - SDPDBG("To be copied(1) : %d\n", toBeCopied); - free(base_uuid); - return NULL; - } - strncpy(temp, dataPtr, toBeCopied); - dataLongValue = htonl(strtoul(temp, NULL, 16)); - memcpy(&data[0], &dataLongValue, 4); - - /* - * Get the next 4 bytes (note that there is a "-" - * between them now) - */ - memset(temp, '\0', 10); - dataPtr = delimPtr + 1; - delimPtr = strchr(dataPtr, delim); - toBeCopied = delimPtr - dataPtr; - if (toBeCopied != 4) { - SDPDBG("To be copied(2) : %d\n", toBeCopied); - free(base_uuid); - return NULL; - } - strncpy(temp, dataPtr, toBeCopied); - dataPtr = delimPtr + 1; - delimPtr = strchr(dataPtr, delim); - toBeCopied = delimPtr - dataPtr; - if (toBeCopied != 4) { - SDPDBG("To be copied(3) : %d\n", toBeCopied); - free(base_uuid); - return NULL; - } - strncat(temp, dataPtr, toBeCopied); - dataLongValue = htonl(strtoul(temp, NULL, 16)); - memcpy(&data[4], &dataLongValue, 4); - - /* - * Get the last 4 bytes (note that there are 6 bytes - * after the last separator, which is truncated (2+4) - */ - memset(temp, '\0', 10); - dataPtr = delimPtr + 1; - dataPtr = delimPtr + 1; - delimPtr = strchr(dataPtr, delim); - toBeCopied = delimPtr - dataPtr; - if (toBeCopied != 4) { - SDPDBG("To be copied(4) : %d\n", toBeCopied); - free(base_uuid); - return NULL; - } - strncpy(temp, dataPtr, toBeCopied); - strncat(temp, (delimPtr + 1), 4); - dataLongValue = htonl(strtoul(temp, NULL, 16)); - memcpy(&data[8], &dataLongValue, 4); - dataLongValue = htonl(strtoul(delimPtr + 5, NULL, 16)); - memcpy(&data[12], &dataLongValue, 4); - - return base_uuid; -} - -uuid_t *sdp_uuid16_create(uuid_t *u, uint16_t val) -{ - memset(u, 0, sizeof(uuid_t)); - u->type = SDP_UUID16; - u->value.uuid16 = val; - return u; -} - -uuid_t *sdp_uuid32_create(uuid_t *u, uint32_t val) -{ - memset(u, 0, sizeof(uuid_t)); - u->type = SDP_UUID32; - u->value.uuid32 = val; - return u; -} - -uuid_t *sdp_uuid128_create(uuid_t *u, const void *val) -{ - memset(u, 0, sizeof(uuid_t)); - u->type = SDP_UUID128; - memcpy(&u->value.uuid128, val, sizeof(uint128_t)); - return u; -} - -/* - * UUID comparison function - * returns 0 if uuidValue1 == uuidValue2 else -1 - */ -int sdp_uuid16_cmp(const void *p1, const void *p2) -{ - const uuid_t *u1 = (const uuid_t *)p1; - const uuid_t *u2 = (const uuid_t *)p2; - return memcmp(&u1->value.uuid16, &u2->value.uuid16, sizeof(uint16_t)); -} - -/* - * UUID comparison function - * returns 0 if uuidValue1 == uuidValue2 else -1 - */ -int sdp_uuid128_cmp(const void *p1, const void *p2) -{ - const uuid_t *u1 = (const uuid_t *)p1; - const uuid_t *u2 = (const uuid_t *)p2; - return memcmp(&u1->value.uuid128, &u2->value.uuid128, sizeof(uint128_t)); -} - -/* - * 128 to 16 bit and 32 to 16 bit UUID conversion functions - * yet to be implemented. Note that the input is in NBO in - * both 32 and 128 bit UUIDs and conversion is needed - */ -void sdp_uuid16_to_uuid128(uuid_t *uuid128, uuid_t *uuid16) -{ - /* - * We have a 16 bit value, which needs to be added to - * bytes 3 and 4 (at indices 2 and 3) of the Bluetooth base - */ - unsigned short data1; - - // allocate a 128bit UUID and init to the Bluetooth base UUID - uuid128->value.uuid128 = bluetooth_base_uuid; - uuid128->type = SDP_UUID128; - - // extract bytes 2 and 3 of 128bit BT base UUID - memcpy(&data1, &bluetooth_base_uuid.data[2], 2); - - // add the given UUID (16 bits) - data1 += htons(uuid16->value.uuid16); - - // set bytes 2 and 3 of the 128 bit value - memcpy(&uuid128->value.uuid128.data[2], &data1, 2); -} - -void sdp_uuid32_to_uuid128(uuid_t *uuid128, uuid_t *uuid32) -{ - /* - * We have a 32 bit value, which needs to be added to - * bytes 1->4 (at indices 0 thru 3) of the Bluetooth base - */ - unsigned int data0; - - // allocate a 128bit UUID and init to the Bluetooth base UUID - uuid128->value.uuid128 = bluetooth_base_uuid; - uuid128->type = SDP_UUID128; - - // extract first 4 bytes - memcpy(&data0, &bluetooth_base_uuid.data[0], 4); - - // add the given UUID (32bits) - data0 += htonl(uuid32->value.uuid32); - - // set the 4 bytes of the 128 bit value - memcpy(&uuid128->value.uuid128.data[0], &data0, 4); -} - -uuid_t *sdp_uuid_to_uuid128(uuid_t *uuid) -{ - uuid_t *uuid128 = bt_malloc(sizeof(uuid_t)); - memset(uuid128, 0, sizeof(uuid_t)); - switch (uuid->type) { - case SDP_UUID128: - *uuid128 = *uuid; - break; - case SDP_UUID32: - sdp_uuid32_to_uuid128(uuid128, uuid); - break; - case SDP_UUID16: - sdp_uuid16_to_uuid128(uuid128, uuid); - break; - } - return uuid128; -} - -/* - * converts a 128-bit uuid to a 16/32-bit one if possible - * returns true if uuid contains a 16/32-bit UUID at exit - */ -int sdp_uuid128_to_uuid(uuid_t *uuid) -{ - uint128_t *b = &bluetooth_base_uuid; - uint128_t *u = &uuid->value.uuid128; - uint32_t data; - int i; - - if (uuid->type != SDP_UUID128) - return 1; - - for (i = 4; i < sizeof(b->data); i++) - if (b->data[i] != u->data[i]) - return 0; - - memcpy(&data, u->data, 4); - data = htonl(data); - if (data <= 0xffff) { - uuid->type = SDP_UUID16; - uuid->value.uuid16 = (uint16_t) data; - } else { - uuid->type = SDP_UUID32; - uuid->value.uuid32 = data; - } - return 1; -} - -/* - * convert a UUID to the 16-bit short-form - */ -int sdp_uuid_to_proto(uuid_t *uuid) -{ - uuid_t u = *uuid; - if (sdp_uuid128_to_uuid(&u)) { - switch (u.type) { - case SDP_UUID16: - return u.value.uuid16; - case SDP_UUID32: - return u.value.uuid32; - } - } - return 0; -} - -/* - * This function appends data to the PDU buffer "dst" from source "src". - * The data length is also computed and set. - * Should the PDU length exceed 2^8, then sequence type is - * set accordingly and the data is memmove()'d. - */ -void sdp_append_to_buf(sdp_buf_t *dst, uint8_t *data, uint32_t len) -{ - uint8_t *p = dst->data; - uint8_t dtd = *(uint8_t *) p; - - SDPDBG("Append src size: %d\n", len); - SDPDBG("Append dst size: %d\n", dst->data_size); - SDPDBG("Dst buffer size: %d\n", dst->buf_size); - if (dst->data_size + len > dst->buf_size) { - int need = SDP_PDU_CHUNK_SIZE * ((len / SDP_PDU_CHUNK_SIZE) + 1); - dst->data = realloc(dst->data, dst->buf_size + need); - - SDPDBG("Realloc'ing : %d\n", need); - - if (dst->data == NULL) { - SDPERR("Realloc fails \n"); - } - dst->buf_size += need; - } - if (dst->data_size == 0 && dtd == 0) { - // create initial sequence - *(uint8_t *)p = SDP_SEQ8; - p += sizeof(uint8_t); - dst->data_size += sizeof(uint8_t); - // reserve space for sequence size - p += sizeof(uint8_t); - dst->data_size += sizeof(uint8_t); - } - - memcpy(dst->data + dst->data_size, data, len); - dst->data_size += len; - - dtd = *(uint8_t *)dst->data; - if (dst->data_size > UCHAR_MAX && dtd == SDP_SEQ8) { - short offset = sizeof(uint8_t) + sizeof(uint8_t); - memmove(dst->data + offset + 1, dst->data + offset, dst->data_size - offset); - p = dst->data; - *(uint8_t *) p = SDP_SEQ16; - p += sizeof(uint8_t); - dst->data_size += 1; - } - p = dst->data; - dtd = *(uint8_t *) p; - p += sizeof(uint8_t); - switch (dtd) { - case SDP_SEQ8: - *(uint8_t *) p = dst->data_size - sizeof(uint8_t) - sizeof(uint8_t); - break; - case SDP_SEQ16: - bt_put_unaligned(htons(dst->data_size - sizeof(uint8_t) - sizeof(uint16_t)), (uint16_t *) p); - break; - case SDP_SEQ32: - bt_put_unaligned(htonl(dst->data_size - sizeof(uint8_t) - sizeof(uint32_t)), (uint32_t *) p); - break; - } -} - -void sdp_append_to_pdu(sdp_buf_t *pdu, sdp_data_t *d) -{ - uint8_t buf[256]; - sdp_buf_t append; - - memset(&append, 0, sizeof(sdp_buf_t)); - append.data = buf; - append.buf_size = sizeof(buf); - append.data_size = 0; - - sdp_set_attrid(&append, d->attrId); - sdp_gen_pdu(&append, d); - sdp_append_to_buf(pdu, append.data, append.data_size); -} - -/* - * Registers an sdp record. - * - * It is incorrect to call this method on a record that - * has been already registered with the server. - * - * Returns zero on success, otherwise -1 (and sets errno). - */ -int sdp_device_record_register_binary(sdp_session_t *session, bdaddr_t *device, uint8_t *data, uint32_t size, uint8_t flags, uint32_t *handle) -{ - uint8_t *req, *rsp, *p; - uint32_t reqsize, rspsize; - sdp_pdu_hdr_t *reqhdr, *rsphdr; - int status; - - SDPDBG(""); - - if (!session->local) { - errno = EREMOTE; - return -1; - } - req = malloc(SDP_REQ_BUFFER_SIZE); - rsp = malloc(SDP_RSP_BUFFER_SIZE); - if (req == NULL || rsp == NULL) { - status = -1; - errno = ENOMEM; - goto end; - } - - reqhdr = (sdp_pdu_hdr_t *)req; - reqhdr->pdu_id = SDP_SVC_REGISTER_REQ; - reqhdr->tid = htons(sdp_gen_tid(session)); - reqsize = sizeof(sdp_pdu_hdr_t) + 1; - p = req + sizeof(sdp_pdu_hdr_t); - - if (bacmp(device, BDADDR_ANY)) { - *p++ = flags | SDP_DEVICE_RECORD; - bacpy((bdaddr_t *) p, device); - p += sizeof(bdaddr_t); - reqsize += sizeof(bdaddr_t); - } else - *p++ = flags; - - memcpy(p, data, size); - reqsize += size; - reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); - - status = sdp_send_req_w4_rsp(session, req, rsp, reqsize, &rspsize); - if (status < 0) - goto end; - - if (rspsize < sizeof(sdp_pdu_hdr_t)) { - SDPERR("Unexpected end of packet"); - errno = EPROTO; - status = -1; - goto end; - } - - rsphdr = (sdp_pdu_hdr_t *) rsp; - p = rsp + sizeof(sdp_pdu_hdr_t); - - if (rsphdr->pdu_id == SDP_ERROR_RSP) { - /* Invalid service record */ - errno = EINVAL; - status = -1; - } else if (rsphdr->pdu_id != SDP_SVC_REGISTER_RSP) { - errno = EPROTO; - status = -1; - } else { - if (rspsize < sizeof(sdp_pdu_hdr_t) + sizeof(uint32_t)) { - SDPERR("Unexpected end of packet"); - errno = EPROTO; - status = -1; - goto end; - } - if (handle) - *handle = ntohl(bt_get_unaligned((uint32_t *) p)); - } - -end: - if (req) - free(req); - - if (rsp) - free(rsp); - - return status; -} - -int sdp_device_record_register(sdp_session_t *session, bdaddr_t *device, sdp_record_t *rec, uint8_t flags) -{ - sdp_buf_t pdu; - uint32_t handle; - int err; - - SDPDBG(""); - - if (rec->handle && rec->handle != 0xffffffff) { - uint32_t handle = rec->handle; - sdp_data_t *data = sdp_data_alloc(SDP_UINT32, &handle); - sdp_attr_replace(rec, SDP_ATTR_RECORD_HANDLE, data); - } - - if (sdp_gen_record_pdu(rec, &pdu) < 0) { - errno = ENOMEM; - return -1; - } - - err = sdp_device_record_register_binary(session, device, - pdu.data, pdu.data_size, flags, &handle); - - free(pdu.data); - - if (err == 0) { - sdp_data_t *data = sdp_data_alloc(SDP_UINT32, &handle); - rec->handle = handle; - sdp_attr_replace(rec, SDP_ATTR_RECORD_HANDLE, data); - } - - return err; -} - -int sdp_record_register(sdp_session_t *session, sdp_record_t *rec, uint8_t flags) -{ - return sdp_device_record_register(session, BDADDR_ANY, rec, flags); -} - -/* - * unregister a service record - */ -int sdp_device_record_unregister_binary(sdp_session_t *session, bdaddr_t *device, uint32_t handle) -{ - uint8_t *reqbuf, *rspbuf, *p; - uint32_t reqsize = 0, rspsize = 0; - sdp_pdu_hdr_t *reqhdr, *rsphdr; - int status; - - SDPDBG(""); - - if (handle == SDP_SERVER_RECORD_HANDLE) { - errno = EINVAL; - return -1; - } - - if (!session->local) { - errno = EREMOTE; - return -1; - } - - reqbuf = malloc(SDP_REQ_BUFFER_SIZE); - rspbuf = malloc(SDP_RSP_BUFFER_SIZE); - if (!reqbuf || !rspbuf) { - errno = ENOMEM; - status = -1; - goto end; - } - reqhdr = (sdp_pdu_hdr_t *) reqbuf; - reqhdr->pdu_id = SDP_SVC_REMOVE_REQ; - reqhdr->tid = htons(sdp_gen_tid(session)); - - p = reqbuf + sizeof(sdp_pdu_hdr_t); - reqsize = sizeof(sdp_pdu_hdr_t); - bt_put_unaligned(htonl(handle), (uint32_t *) p); - reqsize += sizeof(uint32_t); - - reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); - status = sdp_send_req_w4_rsp(session, reqbuf, rspbuf, reqsize, &rspsize); - if (status < 0) - goto end; - - if (rspsize < sizeof(sdp_pdu_hdr_t) + sizeof(uint16_t)) { - SDPERR("Unexpected end of packet"); - errno = EPROTO; - status = -1; - goto end; - } - - rsphdr = (sdp_pdu_hdr_t *) rspbuf; - p = rspbuf + sizeof(sdp_pdu_hdr_t); - status = bt_get_unaligned((uint16_t *) p); - - if (rsphdr->pdu_id == SDP_ERROR_RSP) { - /* For this case the status always is invalid record handle */ - errno = EINVAL; - status = -1; - } else if (rsphdr->pdu_id != SDP_SVC_REMOVE_RSP) { - errno = EPROTO; - status = -1; - } -end: - if (reqbuf) - free(reqbuf); - - if (rspbuf) - free(rspbuf); - - return status; -} - -int sdp_device_record_unregister(sdp_session_t *session, bdaddr_t *device, sdp_record_t *rec) -{ - int err; - - err = sdp_device_record_unregister_binary(session, device, rec->handle); - if (err == 0) - sdp_record_free(rec); - - return err; -} - -int sdp_record_unregister(sdp_session_t *session, sdp_record_t *rec) -{ - return sdp_device_record_unregister(session, BDADDR_ANY, rec); -} - -/* - * modify an existing service record - */ -int sdp_device_record_update_binary(sdp_session_t *session, bdaddr_t *device, uint32_t handle, uint8_t *data, uint32_t size) -{ - return -1; -} - -int sdp_device_record_update(sdp_session_t *session, bdaddr_t *device, const sdp_record_t *rec) -{ - uint8_t *reqbuf, *rspbuf, *p; - uint32_t reqsize, rspsize; - sdp_pdu_hdr_t *reqhdr, *rsphdr; - uint32_t handle; - sdp_buf_t pdu; - int status; - - SDPDBG(""); - - handle = rec->handle; - - if (handle == SDP_SERVER_RECORD_HANDLE) { - errno = EINVAL; - return -1; - } - if (!session->local) { - errno = EREMOTE; - return -1; - } - reqbuf = malloc(SDP_REQ_BUFFER_SIZE); - rspbuf = malloc(SDP_RSP_BUFFER_SIZE); - if (!reqbuf || !rspbuf) { - errno = ENOMEM; - status = -1; - goto end; - } - reqhdr = (sdp_pdu_hdr_t *) reqbuf; - reqhdr->pdu_id = SDP_SVC_UPDATE_REQ; - reqhdr->tid = htons(sdp_gen_tid(session)); - - p = reqbuf + sizeof(sdp_pdu_hdr_t); - reqsize = sizeof(sdp_pdu_hdr_t); - - bt_put_unaligned(htonl(handle), (uint32_t *) p); - reqsize += sizeof(uint32_t); - p += sizeof(uint32_t); - - if (sdp_gen_record_pdu(rec, &pdu) < 0) { - errno = ENOMEM; - status = -1; - goto end; - } - memcpy(p, pdu.data, pdu.data_size); - reqsize += pdu.data_size; - free(pdu.data); - - reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); - status = sdp_send_req_w4_rsp(session, reqbuf, rspbuf, reqsize, &rspsize); - if (status < 0) - goto end; - - if (rspsize < sizeof(sdp_pdu_hdr_t) + sizeof(uint16_t)) { - SDPERR("Unexpected end of packet"); - errno = EPROTO; - status = -1; - goto end; - } - - SDPDBG("Send req status : %d\n", status); - - rsphdr = (sdp_pdu_hdr_t *) rspbuf; - p = rspbuf + sizeof(sdp_pdu_hdr_t); - status = bt_get_unaligned((uint16_t *) p); - - if (rsphdr->pdu_id == SDP_ERROR_RSP) { - /* The status can be invalid sintax or invalid record handle */ - errno = EINVAL; - status = -1; - } else if (rsphdr->pdu_id != SDP_SVC_UPDATE_RSP) { - errno = EPROTO; - status = -1; - } -end: - if (reqbuf) - free(reqbuf); - if (rspbuf) - free(rspbuf); - return status; -} - -int sdp_record_update(sdp_session_t *session, const sdp_record_t *rec) -{ - return sdp_device_record_update(session, BDADDR_ANY, rec); -} - -sdp_record_t *sdp_record_alloc() -{ - sdp_record_t *rec = malloc(sizeof(sdp_record_t)); - memset((void *)rec, 0, sizeof(sdp_record_t)); - rec->handle = 0xffffffff; - return rec; -} - -/* - * Free the contents of a service record - */ -void sdp_record_free(sdp_record_t *rec) -{ - sdp_list_free(rec->attrlist, (sdp_free_func_t)sdp_data_free); - sdp_list_free(rec->pattern, free); - free(rec); -} - -void sdp_pattern_add_uuid(sdp_record_t *rec, uuid_t *uuid) -{ - uuid_t *uuid128 = sdp_uuid_to_uuid128(uuid); - - SDPDBG("SvcRec : 0x%lx\n", (unsigned long)rec); - SDPDBG("Elements in target pattern : %d\n", sdp_list_len(rec->pattern)); - SDPDBG("Trying to add : 0x%lx\n", (unsigned long)uuid128); - - if (sdp_list_find(rec->pattern, uuid128, sdp_uuid128_cmp) == NULL) - rec->pattern = sdp_list_insert_sorted(rec->pattern, uuid128, sdp_uuid128_cmp); - else - bt_free(uuid128); - - SDPDBG("Elements in target pattern : %d\n", sdp_list_len(rec->pattern)); -} - -void sdp_pattern_add_uuidseq(sdp_record_t *rec, sdp_list_t *seq) -{ - for (; seq; seq = seq->next) { - uuid_t *uuid = (uuid_t *)seq->data; - sdp_pattern_add_uuid(rec, uuid); - } -} - -/* - * Extract a sequence of service record handles from a PDU buffer - * and add the entries to a sdp_list_t. Note that the service record - * handles are not in "data element sequence" form, but just like - * an array of service handles - */ -static void extract_record_handle_seq(uint8_t *pdu, int bufsize, sdp_list_t **seq, int count, int *scanned) -{ - sdp_list_t *pSeq = *seq; - uint8_t *pdata = pdu; - int n; - - for (n = 0; n < count; n++) { - if (bufsize < sizeof(uint32_t)) { - SDPERR("Unexpected end of packet"); - break; - } - uint32_t *pSvcRec = malloc(sizeof(uint32_t)); - *pSvcRec = ntohl(bt_get_unaligned((uint32_t *) pdata)); - pSeq = sdp_list_append(pSeq, pSvcRec); - pdata += sizeof(uint32_t); - *scanned += sizeof(uint32_t); - bufsize -= sizeof(uint32_t); - } - *seq = pSeq; -} -/* - * Generate the attribute sequence pdu form - * from sdp_list_t elements. Return length of attr seq - */ -static int gen_dataseq_pdu(uint8_t *dst, const sdp_list_t *seq, uint8_t dtd) -{ - sdp_data_t *dataseq; - void **types, **values; - sdp_buf_t buf; - int i, seqlen = sdp_list_len(seq); - - // Fill up the value and the dtd arrays - SDPDBG(""); - - memset(&buf, 0, sizeof(sdp_buf_t)); - buf.data = malloc(256); - buf.buf_size = 256; - - if (!buf.data) - return -ENOMEM; - - SDPDBG("Seq length : %d\n", seqlen); - - types = malloc(seqlen * sizeof(void *)); - values = malloc(seqlen * sizeof(void *)); - for (i = 0; i < seqlen; i++) { - void *data = seq->data; - types[i] = &dtd; - if (SDP_IS_UUID(dtd)) - data = &((uuid_t *)data)->value; - values[i] = data; - seq = seq->next; - } - - dataseq = sdp_seq_alloc(types, values, seqlen); - SDPDBG("Data Seq : 0x%p\n", seq); - seqlen = sdp_gen_pdu(&buf, dataseq); - SDPDBG("Copying : %d\n", buf.data_size); - memcpy(dst, buf.data, buf.data_size); - - sdp_data_free(dataseq); - - free(types); - free(values); - free(buf.data); - return seqlen; -} - -static int gen_searchseq_pdu(uint8_t *dst, const sdp_list_t *seq) -{ - uuid_t *uuid = (uuid_t *) seq->data; - return gen_dataseq_pdu(dst, seq, uuid->type); -} - -static int gen_attridseq_pdu(uint8_t *dst, const sdp_list_t *seq, uint8_t dataType) -{ - return gen_dataseq_pdu(dst, seq, dataType); -} - -typedef struct { - uint8_t length; - unsigned char data[16]; -} __attribute__ ((packed)) sdp_cstate_t; - -static int copy_cstate(uint8_t *pdata, int pdata_len, const sdp_cstate_t *cstate) -{ - if (cstate) { - uint8_t len = cstate->length; - if (len >= pdata_len) { - SDPERR("Continuation state size exceeds internal buffer"); - len = pdata_len - 1; - } - *pdata++ = len; - memcpy(pdata, cstate->data, len); - return len + 1; - } - *pdata = 0; - return 1; -} - -/* - * This is a service search request. - * - * INPUT : - * - * sdp_list_t *search - * Singly linked list containing elements of the search - * pattern. Each entry in the list is a UUID (DataTypeSDP_UUID16) - * of the service to be searched - * - * uint16_t max_rec_num - * A 16 bit integer which tells the service, the maximum - * entries that the client can handle in the response. The - * server is obliged not to return > max_rec_num entries - * - * OUTPUT : - * - * int return value - * 0: - * The request completed successfully. This does not - * mean the requested services were found - * -1: - * On any failure and sets errno - * - * sdp_list_t **rsp_list - * This variable is set on a successful return if there are - * non-zero service handles. It is a singly linked list of - * service record handles (uint16_t) - */ -int sdp_service_search_req(sdp_session_t *session, const sdp_list_t *search, - uint16_t max_rec_num, sdp_list_t **rsp) -{ - int status = 0; - uint32_t reqsize = 0, _reqsize; - uint32_t rspsize = 0, rsplen; - int seqlen = 0; - int scanned, total_rec_count, rec_count, pdata_len; - uint8_t *pdata, *_pdata; - uint8_t *reqbuf, *rspbuf; - sdp_pdu_hdr_t *reqhdr, *rsphdr; - sdp_cstate_t *cstate = NULL; - - reqbuf = malloc(SDP_REQ_BUFFER_SIZE); - rspbuf = malloc(SDP_RSP_BUFFER_SIZE); - if (!reqbuf || !rspbuf) { - errno = ENOMEM; - status = -1; - goto end; - } - reqhdr = (sdp_pdu_hdr_t *) reqbuf; - reqhdr->pdu_id = SDP_SVC_SEARCH_REQ; - pdata = reqbuf + sizeof(sdp_pdu_hdr_t); - reqsize = sizeof(sdp_pdu_hdr_t); - - // add service class IDs for search - seqlen = gen_searchseq_pdu(pdata, search); - - SDPDBG("Data seq added : %d\n", seqlen); - - // set the length and increment the pointer - reqsize += seqlen; - pdata += seqlen; - - // specify the maximum svc rec count that client expects - bt_put_unaligned(htons(max_rec_num), (uint16_t *) pdata); - reqsize += sizeof(uint16_t); - pdata += sizeof(uint16_t); - - _reqsize = reqsize; - _pdata = pdata; - *rsp = NULL; - - do { - // Add continuation state or NULL (first time) - reqsize = _reqsize + copy_cstate(_pdata, - SDP_REQ_BUFFER_SIZE - _reqsize, cstate); - - // Set the request header's param length - reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); - - reqhdr->tid = htons(sdp_gen_tid(session)); - /* - * Send the request, wait for response and if - * no error, set the appropriate values and return - */ - status = sdp_send_req_w4_rsp(session, reqbuf, rspbuf, reqsize, &rspsize); - if (status < 0) - goto end; - - if (rspsize < sizeof(sdp_pdu_hdr_t)) { - SDPERR("Unexpected end of packet"); - status = -1; - goto end; - } - - rsphdr = (sdp_pdu_hdr_t *) rspbuf; - rsplen = ntohs(rsphdr->plen); - - if (rsphdr->pdu_id == SDP_ERROR_RSP) { - SDPDBG("Status : 0x%x\n", rsphdr->pdu_id); - status = -1; - goto end; - } - scanned = 0; - pdata = rspbuf + sizeof(sdp_pdu_hdr_t); - pdata_len = rspsize - sizeof(sdp_pdu_hdr_t); - - if (pdata_len < sizeof(uint16_t) + sizeof(uint16_t)) { - SDPERR("Unexpected end of packet"); - status = -1; - goto end; - } - - // net service record match count - total_rec_count = ntohs(bt_get_unaligned((uint16_t *) pdata)); - pdata += sizeof(uint16_t); - scanned += sizeof(uint16_t); - pdata_len -= sizeof(uint16_t); - rec_count = ntohs(bt_get_unaligned((uint16_t *) pdata)); - pdata += sizeof(uint16_t); - scanned += sizeof(uint16_t); - pdata_len -= sizeof(uint16_t); - - SDPDBG("Total svc count: %d\n", total_rec_count); - SDPDBG("Current svc count: %d\n", rec_count); - SDPDBG("ResponseLength: %d\n", rsplen); - - if (!rec_count) { - status = -1; - goto end; - } - extract_record_handle_seq(pdata, pdata_len, rsp, rec_count, &scanned); - SDPDBG("BytesScanned : %d\n", scanned); - - if (rsplen > scanned) { - uint8_t cstate_len; - - if (rspsize < sizeof(sdp_pdu_hdr_t) + scanned + sizeof(uint8_t)) { - SDPERR("Unexpected end of packet: continuation state data missing"); - status = -1; - goto end; - } - - pdata = rspbuf + sizeof(sdp_pdu_hdr_t) + scanned; - cstate_len = *(uint8_t *) pdata; - if (cstate_len > 0) { - cstate = (sdp_cstate_t *)pdata; - SDPDBG("Cont state length: %d\n", cstate_len); - } else - cstate = NULL; - } - } while (cstate); - -end: - if (reqbuf) - free(reqbuf); - if (rspbuf) - free(rspbuf); - - return status; -} - -/* - * This is a service attribute request. - * - * INPUT : - * - * uint32_t handle - * The handle of the service for which the attribute(s) are - * requested - * - * sdp_attrreq_type_t reqtype - * Attribute identifiers are 16 bit unsigned integers specified - * in one of 2 ways described below : - * SDP_ATTR_REQ_INDIVIDUAL - 16bit individual identifiers - * They are the actual attribute identifiers in ascending order - * - * SDP_ATTR_REQ_RANGE - 32bit identifier range - * The high-order 16bits is the start of range - * the low-order 16bits are the end of range - * 0x0000 to 0xFFFF gets all attributes - * - * sdp_list_t *attrid - * Singly linked list containing attribute identifiers desired. - * Every element is either a uint16_t(attrSpec = SDP_ATTR_REQ_INDIVIDUAL) - * or a uint32_t(attrSpec=SDP_ATTR_REQ_RANGE) - * - * OUTPUT : - * return sdp_record_t * - * 0: - * On any error and sets errno - * !0: - * The service record - */ -sdp_record_t *sdp_service_attr_req(sdp_session_t *session, uint32_t handle, - sdp_attrreq_type_t reqtype, const sdp_list_t *attrids) -{ - int status = 0; - uint32_t reqsize = 0, _reqsize; - uint32_t rspsize = 0, rsp_count; - int attr_list_len = 0; - int seqlen = 0, pdata_len; - uint8_t *pdata, *_pdata; - uint8_t *reqbuf, *rspbuf; - sdp_pdu_hdr_t *reqhdr, *rsphdr; - sdp_cstate_t *cstate = NULL; - uint8_t cstate_len = 0; - sdp_buf_t rsp_concat_buf; - sdp_record_t *rec = 0; - - if (reqtype != SDP_ATTR_REQ_INDIVIDUAL && reqtype != SDP_ATTR_REQ_RANGE) { - errno = EINVAL; - return 0; - } - - reqbuf = malloc(SDP_REQ_BUFFER_SIZE); - rspbuf = malloc(SDP_RSP_BUFFER_SIZE); - if (!reqbuf || !rspbuf) { - errno = ENOMEM; - status = -1; - goto end; - } - memset((char *) &rsp_concat_buf, 0, sizeof(sdp_buf_t)); - reqhdr = (sdp_pdu_hdr_t *) reqbuf; - reqhdr->pdu_id = SDP_SVC_ATTR_REQ; - - pdata = reqbuf + sizeof(sdp_pdu_hdr_t); - reqsize = sizeof(sdp_pdu_hdr_t); - - // add the service record handle - bt_put_unaligned(htonl(handle), (uint32_t *) pdata); - reqsize += sizeof(uint32_t); - pdata += sizeof(uint32_t); - - // specify the response limit - bt_put_unaligned(htons(65535), (uint16_t *) pdata); - reqsize += sizeof(uint16_t); - pdata += sizeof(uint16_t); - - // get attr seq PDU form - seqlen = gen_attridseq_pdu(pdata, attrids, - reqtype == SDP_ATTR_REQ_INDIVIDUAL? SDP_UINT16 : SDP_UINT32); - if (seqlen == -1) { - errno = EINVAL; - status = -1; - goto end; - } - pdata += seqlen; - reqsize += seqlen; - SDPDBG("Attr list length : %d\n", seqlen); - - // save before Continuation State - _pdata = pdata; - _reqsize = reqsize; - - do { - // add NULL continuation state - reqsize = _reqsize + copy_cstate(_pdata, - SDP_REQ_BUFFER_SIZE - _reqsize, cstate); - - // set the request header's param length - reqhdr->tid = htons(sdp_gen_tid(session)); - reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); - - status = sdp_send_req_w4_rsp(session, reqbuf, rspbuf, reqsize, &rspsize); - if (status < 0) - goto end; - - if (rspsize < sizeof(sdp_pdu_hdr_t)) { - SDPERR("Unexpected end of packet"); - status = -1; - goto end; - } - - rsp_count = 0; - rsphdr = (sdp_pdu_hdr_t *) rspbuf; - if (rsphdr->pdu_id == SDP_ERROR_RSP) { - SDPDBG("PDU ID : 0x%x\n", rsphdr->pdu_id); - status = -1; - goto end; - } - pdata = rspbuf + sizeof(sdp_pdu_hdr_t); - pdata_len = rspsize - sizeof(sdp_pdu_hdr_t); - - if (pdata_len < sizeof(uint16_t)) { - SDPERR("Unexpected end of packet"); - status = -1; - goto end; - } - - rsp_count = ntohs(bt_get_unaligned((uint16_t *) pdata)); - attr_list_len += rsp_count; - pdata += sizeof(uint16_t); - pdata_len -= sizeof(uint16_t); - - // if continuation state set need to re-issue request before parsing - if (pdata_len < rsp_count + sizeof(uint8_t)) { - SDPERR("Unexpected end of packet: continuation state data missing"); - status = -1; - goto end; - } - cstate_len = *(uint8_t *) (pdata + rsp_count); - - SDPDBG("Response id : %d\n", rsphdr->pdu_id); - SDPDBG("Attrlist byte count : %d\n", rsp_count); - SDPDBG("sdp_cstate_t length : %d\n", cstate_len); - - /* - * a split response: concatenate intermediate responses - * and the last one (which has cstate_len == 0) - */ - if (cstate_len > 0 || rsp_concat_buf.data_size != 0) { - uint8_t *targetPtr = NULL; - - cstate = cstate_len > 0 ? (sdp_cstate_t *) (pdata + rsp_count) : 0; - - // build concatenated response buffer - rsp_concat_buf.data = realloc(rsp_concat_buf.data, rsp_concat_buf.data_size + rsp_count); - rsp_concat_buf.buf_size = rsp_concat_buf.data_size + rsp_count; - targetPtr = rsp_concat_buf.data + rsp_concat_buf.data_size; - memcpy(targetPtr, pdata, rsp_count); - rsp_concat_buf.data_size += rsp_count; - } - } while (cstate); - - if (attr_list_len > 0) { - int scanned = 0; - if (rsp_concat_buf.data_size != 0) { - pdata = rsp_concat_buf.data; - pdata_len = rsp_concat_buf.data_size; - } - rec = sdp_extract_pdu_safe(pdata, pdata_len, &scanned); - - if (!rec) - status = -1; - } - -end: - if (reqbuf) - free(reqbuf); - if (rsp_concat_buf.data) - free(rsp_concat_buf.data); - if (rspbuf) - free(rspbuf); - return rec; -} - -/* - * SDP transaction structure for asynchronous search - */ -struct sdp_transaction { - sdp_callback_t *cb; /* called when the transaction finishes */ - void *udata; /* client user data */ - uint8_t *reqbuf; /* pointer to request PDU */ - sdp_buf_t rsp_concat_buf; - uint32_t reqsize; /* without cstate */ - int err; /* ZERO if success or the errno if failed */ -}; - -/* - * Creates a new sdp session for asynchronous search - * INPUT: - * int sk - * non-blocking L2CAP socket - * - * RETURN: - * sdp_session_t * - * NULL - On memory allocation failure - */ -sdp_session_t *sdp_create(int sk, uint32_t flags) -{ - sdp_session_t *session; - struct sdp_transaction *t; - - session = malloc(sizeof(sdp_session_t)); - if (!session) { - errno = ENOMEM; - return NULL; - } - memset(session, 0, sizeof(*session)); - - session->flags = flags; - session->sock = sk; - - t = malloc(sizeof(struct sdp_transaction)); - if (!t) { - errno = ENOMEM; - free(session); - return NULL; - } - memset(t, 0, sizeof(*t)); - - session->priv = t; - - return session; -} - -/* - * Sets the callback function/user data used to notify the application - * that the asynchronous transaction finished. This function must be - * called before request an asynchronous search. - * - * INPUT: - * sdp_session_t *session - * Current sdp session to be handled - * sdp_callback_t *cb - * callback to be called when the transaction finishes - * void *udata - * user data passed to callback - * RETURN: - * 0 - Success - * -1 - Failure - */ -int sdp_set_notify(sdp_session_t *session, sdp_callback_t *func, void *udata) -{ - struct sdp_transaction *t; - - if (!session || !session->priv) - return -1; - - t = session->priv; - t->cb = func; - t->udata = udata; - - return 0; -} - -/* - * This function starts an asynchronous service search request. - * The incomming and outgoing data are stored in the transaction structure - * buffers. When there is incomming data the sdp_process function must be - * called to get the data and handle the continuation state. - * - * INPUT : - * sdp_session_t *session - * Current sdp session to be handled - * - * sdp_list_t *search - * Singly linked list containing elements of the search - * pattern. Each entry in the list is a UUID (DataTypeSDP_UUID16) - * of the service to be searched - * - * uint16_t max_rec_num - * A 16 bit integer which tells the service, the maximum - * entries that the client can handle in the response. The - * server is obliged not to return > max_rec_num entries - * - * OUTPUT : - * - * int return value - * 0 - if the request has been sent properly - * -1 - On any failure and sets errno - */ - -int sdp_service_search_async(sdp_session_t *session, const sdp_list_t *search, uint16_t max_rec_num) -{ - struct sdp_transaction *t; - sdp_pdu_hdr_t *reqhdr; - uint8_t *pdata; - int cstate_len, seqlen = 0; - - if (!session || !session->priv) - return -1; - - t = session->priv; - - /* check if the buffer is already allocated */ - if (t->rsp_concat_buf.data) - free(t->rsp_concat_buf.data); - memset(&t->rsp_concat_buf, 0, sizeof(sdp_buf_t)); - - if (!t->reqbuf) { - t->reqbuf = malloc(SDP_REQ_BUFFER_SIZE); - if (!t->reqbuf) { - t->err = ENOMEM; - goto end; - } - } - memset(t->reqbuf, 0, SDP_REQ_BUFFER_SIZE); - - reqhdr = (sdp_pdu_hdr_t *) t->reqbuf; - reqhdr->tid = htons(sdp_gen_tid(session)); - reqhdr->pdu_id = SDP_SVC_SEARCH_REQ; - - // generate PDU - pdata = t->reqbuf + sizeof(sdp_pdu_hdr_t); - t->reqsize = sizeof(sdp_pdu_hdr_t); - - // add service class IDs for search - seqlen = gen_searchseq_pdu(pdata, search); - - SDPDBG("Data seq added : %d\n", seqlen); - - // now set the length and increment the pointer - t->reqsize += seqlen; - pdata += seqlen; - - bt_put_unaligned(htons(max_rec_num), (uint16_t *) pdata); - t->reqsize += sizeof(uint16_t); - pdata += sizeof(uint16_t); - - // set the request header's param length - cstate_len = copy_cstate(pdata, SDP_REQ_BUFFER_SIZE - t->reqsize, NULL); - reqhdr->plen = htons((t->reqsize + cstate_len) - sizeof(sdp_pdu_hdr_t)); - - if (sdp_send_req(session, t->reqbuf, t->reqsize + cstate_len) < 0) { - SDPERR("Error sendind data:%s", strerror(errno)); - t->err = errno; - goto end; - } - - return 0; -end: - - if (t->reqbuf) { - free(t->reqbuf); - t->reqbuf = NULL; - } - - return -1; -} - -/* - * This function starts an asynchronous service attribute request. - * The incomming and outgoing data are stored in the transaction structure - * buffers. When there is incomming data the sdp_process function must be - * called to get the data and handle the continuation state. - * - * INPUT : - * sdp_session_t *session - * Current sdp session to be handled - * - * uint32_t handle - * The handle of the service for which the attribute(s) are - * requested - * - * sdp_attrreq_type_t reqtype - * Attribute identifiers are 16 bit unsigned integers specified - * in one of 2 ways described below : - * SDP_ATTR_REQ_INDIVIDUAL - 16bit individual identifiers - * They are the actual attribute identifiers in ascending order - * - * SDP_ATTR_REQ_RANGE - 32bit identifier range - * The high-order 16bits is the start of range - * the low-order 16bits are the end of range - * 0x0000 to 0xFFFF gets all attributes - * - * sdp_list_t *attrid_list - * Singly linked list containing attribute identifiers desired. - * Every element is either a uint16_t(attrSpec = SDP_ATTR_REQ_INDIVIDUAL) - * or a uint32_t(attrSpec=SDP_ATTR_REQ_RANGE) - * - * OUTPUT : - * int return value - * 0 - if the request has been sent properly - * -1 - On any failure and sets errno - */ - -int sdp_service_attr_async(sdp_session_t *session, uint32_t handle, sdp_attrreq_type_t reqtype, const sdp_list_t *attrid_list) -{ - struct sdp_transaction *t; - sdp_pdu_hdr_t *reqhdr; - uint8_t *pdata; - int cstate_len, seqlen = 0; - - if (!session || !session->priv) - return -1; - - t = session->priv; - - /* check if the buffer is already allocated */ - if (t->rsp_concat_buf.data) - free(t->rsp_concat_buf.data); - memset(&t->rsp_concat_buf, 0, sizeof(sdp_buf_t)); - - if (!t->reqbuf) { - t->reqbuf = malloc(SDP_REQ_BUFFER_SIZE); - if (!t->reqbuf) { - t->err = ENOMEM; - goto end; - } - } - memset(t->reqbuf, 0, SDP_REQ_BUFFER_SIZE); - - reqhdr = (sdp_pdu_hdr_t *) t->reqbuf; - reqhdr->tid = htons(sdp_gen_tid(session)); - reqhdr->pdu_id = SDP_SVC_ATTR_REQ; - - // generate PDU - pdata = t->reqbuf + sizeof(sdp_pdu_hdr_t); - t->reqsize = sizeof(sdp_pdu_hdr_t); - - // add the service record handle - bt_put_unaligned(htonl(handle), (uint32_t *) pdata); - t->reqsize += sizeof(uint32_t); - pdata += sizeof(uint32_t); - - // specify the response limit - bt_put_unaligned(htons(65535), (uint16_t *) pdata); - t->reqsize += sizeof(uint16_t); - pdata += sizeof(uint16_t); - - // get attr seq PDU form - seqlen = gen_attridseq_pdu(pdata, attrid_list, - reqtype == SDP_ATTR_REQ_INDIVIDUAL? SDP_UINT16 : SDP_UINT32); - if (seqlen == -1) { - t->err = EINVAL; - goto end; - } - - // now set the length and increment the pointer - t->reqsize += seqlen; - pdata += seqlen; - SDPDBG("Attr list length : %d\n", seqlen); - - // set the request header's param length - cstate_len = copy_cstate(pdata, SDP_REQ_BUFFER_SIZE - t->reqsize, NULL); - reqhdr->plen = htons((t->reqsize + cstate_len) - sizeof(sdp_pdu_hdr_t)); - - if (sdp_send_req(session, t->reqbuf, t->reqsize + cstate_len) < 0) { - SDPERR("Error sendind data:%s", strerror(errno)); - t->err = errno; - goto end; - } - - return 0; -end: - - if (t->reqbuf) { - free(t->reqbuf); - t->reqbuf = NULL; - } - - return -1; -} - -/* - * This function starts an asynchronous service search attributes. - * It is a service search request combined with attribute request. The incomming - * and outgoing data are stored in the transaction structure buffers. When there - * is incomming data the sdp_process function must be called to get the data - * and handle the continuation state. - * - * INPUT: - * sdp_session_t *session - * Current sdp session to be handled - * - * sdp_list_t *search - * Singly linked list containing elements of the search - * pattern. Each entry in the list is a UUID(DataTypeSDP_UUID16) - * of the service to be searched - * - * AttributeSpecification attrSpec - * Attribute identifiers are 16 bit unsigned integers specified - * in one of 2 ways described below : - * SDP_ATTR_REQ_INDIVIDUAL - 16bit individual identifiers - * They are the actual attribute identifiers in ascending order - * - * SDP_ATTR_REQ_RANGE - 32bit identifier range - * The high-order 16bits is the start of range - * the low-order 16bits are the end of range - * 0x0000 to 0xFFFF gets all attributes - * - * sdp_list_t *attrid_list - * Singly linked list containing attribute identifiers desired. - * Every element is either a uint16_t(attrSpec = SDP_ATTR_REQ_INDIVIDUAL) - * or a uint32_t(attrSpec=SDP_ATTR_REQ_RANGE) - * - - * RETURN: - * 0 - if the request has been sent properly - * -1 - On any failure - */ -int sdp_service_search_attr_async(sdp_session_t *session, const sdp_list_t *search, sdp_attrreq_type_t reqtype, const sdp_list_t *attrid_list) -{ - struct sdp_transaction *t; - sdp_pdu_hdr_t *reqhdr; - uint8_t *pdata; - int cstate_len, seqlen = 0; - - if (!session || !session->priv) - return -1; - - t = session->priv; - - /* check if the buffer is already allocated */ - if (t->rsp_concat_buf.data) - free(t->rsp_concat_buf.data); - memset(&t->rsp_concat_buf, 0, sizeof(sdp_buf_t)); - - if (!t->reqbuf) { - t->reqbuf = malloc(SDP_REQ_BUFFER_SIZE); - if (!t->reqbuf) { - t->err = ENOMEM; - goto end; - } - } - memset(t->reqbuf, 0, SDP_REQ_BUFFER_SIZE); - - reqhdr = (sdp_pdu_hdr_t *) t->reqbuf; - reqhdr->tid = htons(sdp_gen_tid(session)); - reqhdr->pdu_id = SDP_SVC_SEARCH_ATTR_REQ; - - // generate PDU - pdata = t->reqbuf + sizeof(sdp_pdu_hdr_t); - t->reqsize = sizeof(sdp_pdu_hdr_t); - - // add service class IDs for search - seqlen = gen_searchseq_pdu(pdata, search); - - SDPDBG("Data seq added : %d\n", seqlen); - - // now set the length and increment the pointer - t->reqsize += seqlen; - pdata += seqlen; - - bt_put_unaligned(htons(SDP_MAX_ATTR_LEN), (uint16_t *) pdata); - t->reqsize += sizeof(uint16_t); - pdata += sizeof(uint16_t); - - SDPDBG("Max attr byte count : %d\n", SDP_MAX_ATTR_LEN); - - // get attr seq PDU form - seqlen = gen_attridseq_pdu(pdata, attrid_list, - reqtype == SDP_ATTR_REQ_INDIVIDUAL ? SDP_UINT16 : SDP_UINT32); - if (seqlen == -1) { - t->err = EINVAL; - goto end; - } - - pdata += seqlen; - SDPDBG("Attr list length : %d\n", seqlen); - t->reqsize += seqlen; - - // set the request header's param length - cstate_len = copy_cstate(pdata, SDP_REQ_BUFFER_SIZE - t->reqsize, NULL); - reqhdr->plen = htons((t->reqsize + cstate_len) - sizeof(sdp_pdu_hdr_t)); - - if (sdp_send_req(session, t->reqbuf, t->reqsize + cstate_len) < 0) { - SDPERR("Error sendind data:%s", strerror(errno)); - t->err = errno; - goto end; - } - - return 0; -end: - - if (t->reqbuf) { - free(t->reqbuf); - t->reqbuf = NULL; - } - - return -1; -} - -/* - * Function used to get the error reason after sdp_callback_t function has been called - * and the status is 0xffff or if sdp_service_{search, attr, search_attr}_async returns -1. - * It indicates that an error NOT related to SDP_ErrorResponse happened. Get errno directly - * is not safe because multiple transactions can be triggered. - * This function must be used with asynchronous sdp functions only. - * - * INPUT: - * sdp_session_t *session - * Current sdp session to be handled - * RETURN: - * 0 = No error in the current transaction - * -1 - if the session is invalid - * positive value - the errno value - * - */ -int sdp_get_error(sdp_session_t *session) -{ - struct sdp_transaction *t; - - if (!session || !session->priv) { - SDPERR("Invalid session"); - return -1; - } - - t = session->priv; - - return t->err; -} - -/* - * Receive the incomming SDP PDU. This function must be called when there is data - * available to be read. On continuation state, the original request (with a new - * transaction ID) and the continuation state data will be appended in the initial PDU. - * If an error happens or the transaction finishes the callback function will be called. - * - * INPUT: - * sdp_session_t *session - * Current sdp session to be handled - * RETURN: - * 0 - if the transaction is on continuation state - * -1 - On any failure or the transaction finished - */ -int sdp_process(sdp_session_t *session) -{ - struct sdp_transaction *t; - sdp_pdu_hdr_t *reqhdr, *rsphdr; - sdp_cstate_t *pcstate; - uint8_t *pdata, *rspbuf, *targetPtr; - int rsp_count, err = -1; - size_t size = 0; - int n, plen; - uint16_t status = 0xffff; - uint8_t pdu_id = 0x00; - - if (!session || !session->priv) { - SDPERR("Invalid session"); - return -1; - } - - rspbuf = malloc(SDP_RSP_BUFFER_SIZE); - if (!rspbuf) { - SDPERR("Response buffer alloc failure:%s (%d)", - strerror(errno), errno); - return -1; - } - - memset(rspbuf, 0, SDP_RSP_BUFFER_SIZE); - - t = session->priv; - reqhdr = (sdp_pdu_hdr_t *)t->reqbuf; - rsphdr = (sdp_pdu_hdr_t *)rspbuf; - - pdata = rspbuf + sizeof(sdp_pdu_hdr_t); - - n = sdp_read_rsp(session, rspbuf, SDP_RSP_BUFFER_SIZE); - if (n < 0) { - SDPERR("Read response:%s (%d)", strerror(errno), errno); - t->err = errno; - goto end; - } - - if (n == 0 || reqhdr->tid != rsphdr->tid || - (n != (ntohs(rsphdr->plen) + sizeof(sdp_pdu_hdr_t)))) { - t->err = EPROTO; - SDPERR("Protocol error."); - goto end; - } - - pdu_id = rsphdr->pdu_id; - switch (rsphdr->pdu_id) { - uint8_t *ssr_pdata; - uint16_t tsrc, csrc; - case SDP_SVC_SEARCH_RSP: - /* - * TSRC: Total Service Record Count (2 bytes) - * CSRC: Current Service Record Count (2 bytes) - */ - ssr_pdata = pdata; - tsrc = ntohs(bt_get_unaligned((uint16_t *) ssr_pdata)); - ssr_pdata += sizeof(uint16_t); - csrc = ntohs(bt_get_unaligned((uint16_t *) ssr_pdata)); - - /* csrc should never be larger than tsrc */ - if (csrc > tsrc) { - t->err = EPROTO; - SDPERR("Protocol error: wrong current service record count value."); - goto end; - } - - SDPDBG("Total svc count: %d\n", tsrc); - SDPDBG("Current svc count: %d\n", csrc); - - /* parameter length without continuation state */ - plen = sizeof(tsrc) + sizeof(csrc) + csrc * 4; - - if (t->rsp_concat_buf.data_size == 0) { - /* first fragment */ - rsp_count = sizeof(tsrc) + sizeof(csrc) + csrc * 4; - } else { - /* point to the first csrc */ - uint16_t *pcsrc = (uint16_t *) (t->rsp_concat_buf.data + 2); - - /* FIXME: update the interface later. csrc doesn't need be passed to clients */ - - pdata += sizeof(uint16_t); /* point to csrc */ - - /* the first csrc contains the sum of partial csrc responses */ - *pcsrc += bt_get_unaligned((uint16_t *) pdata); - - pdata += sizeof(uint16_t); /* point to the first handle */ - rsp_count = csrc * 4; - } - status = 0x0000; - break; - case SDP_SVC_ATTR_RSP: - case SDP_SVC_SEARCH_ATTR_RSP: - rsp_count = ntohs(bt_get_unaligned((uint16_t *) pdata)); - SDPDBG("Attrlist byte count : %d\n", rsp_count); - - /* - * Number of bytes in the AttributeLists parameter(without - * continuation state) + AttributeListsByteCount field size. - */ - plen = sizeof(uint16_t) + rsp_count; - - pdata += sizeof(uint16_t); // points to attribute list - status = 0x0000; - break; - case SDP_ERROR_RSP: - status = ntohs(bt_get_unaligned((uint16_t *) pdata)); - size = ntohs(rsphdr->plen); - - /* error code + error info */ - plen = size; - goto end; - default: - t->err = EPROTO; - SDPERR("Illegal PDU ID: 0x%x", rsphdr->pdu_id); - goto end; - } - - pcstate = (sdp_cstate_t *) (pdata + rsp_count); - - SDPDBG("Cstate length : %d\n", pcstate->length); - - /* - * Check out of bound. Continuation state must have at least - * 1 byte: ZERO to indicate that it is not a partial response. - */ - if ((n - sizeof(sdp_pdu_hdr_t)) != (plen + pcstate->length + 1)) { - t->err = EPROTO; - SDPERR("Protocol error: wrong PDU size."); - status = 0xffff; - goto end; - } - - /* - * This is a split response, need to concatenate intermediate - * responses and the last one which will have cstate length == 0 - */ - t->rsp_concat_buf.data = realloc(t->rsp_concat_buf.data, t->rsp_concat_buf.data_size + rsp_count); - targetPtr = t->rsp_concat_buf.data + t->rsp_concat_buf.data_size; - t->rsp_concat_buf.buf_size = t->rsp_concat_buf.data_size + rsp_count; - memcpy(targetPtr, pdata, rsp_count); - t->rsp_concat_buf.data_size += rsp_count; - - if (pcstate->length > 0) { - int reqsize, cstate_len; - - reqhdr->tid = htons(sdp_gen_tid(session)); - - // add continuation state - cstate_len = copy_cstate(t->reqbuf + t->reqsize, - SDP_REQ_BUFFER_SIZE - t->reqsize, pcstate); - - reqsize = t->reqsize + cstate_len; - - // set the request header's param length - reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); - - if (sdp_send_req(session, t->reqbuf, reqsize) < 0) { - SDPERR("Error sendind data:%s(%d)", strerror(errno), errno); - status = 0xffff; - t->err = errno; - goto end; - } - err = 0; - } - -end: - if (err) { - if (t->rsp_concat_buf.data_size != 0) { - pdata = t->rsp_concat_buf.data; - size = t->rsp_concat_buf.data_size; - } - if (t->cb) - t->cb(pdu_id, status, pdata, size, t->udata); - } - - if (rspbuf) - free(rspbuf); - - return err; -} - -/* - * This is a service search request combined with the service - * attribute request. First a service class match is done and - * for matching service, requested attributes are extracted - * - * INPUT : - * - * sdp_list_t *search - * Singly linked list containing elements of the search - * pattern. Each entry in the list is a UUID(DataTypeSDP_UUID16) - * of the service to be searched - * - * AttributeSpecification attrSpec - * Attribute identifiers are 16 bit unsigned integers specified - * in one of 2 ways described below : - * SDP_ATTR_REQ_INDIVIDUAL - 16bit individual identifiers - * They are the actual attribute identifiers in ascending order - * - * SDP_ATTR_REQ_RANGE - 32bit identifier range - * The high-order 16bits is the start of range - * the low-order 16bits are the end of range - * 0x0000 to 0xFFFF gets all attributes - * - * sdp_list_t *attrids - * Singly linked list containing attribute identifiers desired. - * Every element is either a uint16_t(attrSpec = SDP_ATTR_REQ_INDIVIDUAL) - * or a uint32_t(attrSpec=SDP_ATTR_REQ_RANGE) - * - * OUTPUT : - * int return value - * 0: - * The request completed successfully. This does not - * mean the requested services were found - * -1: - * On any error and sets errno - * - * sdp_list_t **rsp - * This variable is set on a successful return to point to - * service(s) found. Each element of this list is of type - * sdp_record_t* (of the services which matched the search list) - */ -int sdp_service_search_attr_req(sdp_session_t *session, const sdp_list_t *search, sdp_attrreq_type_t reqtype, const sdp_list_t *attrids, sdp_list_t **rsp) -{ - int status = 0; - uint32_t reqsize = 0, _reqsize; - uint32_t rspsize = 0; - int seqlen = 0, attr_list_len = 0; - int rsp_count = 0, cstate_len = 0, pdata_len; - uint8_t *pdata, *_pdata; - uint8_t *reqbuf, *rspbuf; - sdp_pdu_hdr_t *reqhdr, *rsphdr; - uint8_t dataType; - sdp_list_t *rec_list = NULL; - sdp_buf_t rsp_concat_buf; - sdp_cstate_t *cstate = NULL; - - if (reqtype != SDP_ATTR_REQ_INDIVIDUAL && reqtype != SDP_ATTR_REQ_RANGE) { - errno = EINVAL; - return -1; - } - reqbuf = malloc(SDP_REQ_BUFFER_SIZE); - rspbuf = malloc(SDP_RSP_BUFFER_SIZE); - if (!reqbuf || !rspbuf) { - errno = ENOMEM; - status = -1; - goto end; - } - - memset((char *)&rsp_concat_buf, 0, sizeof(sdp_buf_t)); - reqhdr = (sdp_pdu_hdr_t *) reqbuf; - reqhdr->pdu_id = SDP_SVC_SEARCH_ATTR_REQ; - - // generate PDU - pdata = reqbuf + sizeof(sdp_pdu_hdr_t); - reqsize = sizeof(sdp_pdu_hdr_t); - - // add service class IDs for search - seqlen = gen_searchseq_pdu(pdata, search); - - SDPDBG("Data seq added : %d\n", seqlen); - - // now set the length and increment the pointer - reqsize += seqlen; - pdata += seqlen; - - bt_put_unaligned(htons(SDP_MAX_ATTR_LEN), (uint16_t *) pdata); - reqsize += sizeof(uint16_t); - pdata += sizeof(uint16_t); - - SDPDBG("Max attr byte count : %d\n", SDP_MAX_ATTR_LEN); - - // get attr seq PDU form - seqlen = gen_attridseq_pdu(pdata, attrids, - reqtype == SDP_ATTR_REQ_INDIVIDUAL ? SDP_UINT16 : SDP_UINT32); - if (seqlen == -1) { - status = EINVAL; - goto end; - } - pdata += seqlen; - SDPDBG("Attr list length : %d\n", seqlen); - reqsize += seqlen; - *rsp = 0; - - // save before Continuation State - _pdata = pdata; - _reqsize = reqsize; - - do { - reqhdr->tid = htons(sdp_gen_tid(session)); - - // add continuation state (can be null) - reqsize = _reqsize + copy_cstate(_pdata, - SDP_REQ_BUFFER_SIZE - _reqsize, cstate); - - // set the request header's param length - reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); - rsphdr = (sdp_pdu_hdr_t *) rspbuf; - status = sdp_send_req_w4_rsp(session, reqbuf, rspbuf, reqsize, &rspsize); - if (rspsize < sizeof(sdp_pdu_hdr_t)) { - SDPERR("Unexpected end of packet"); - status = -1; - goto end; - } - - if (status < 0) { - SDPDBG("Status : 0x%x\n", rsphdr->pdu_id); - goto end; - } - - if (rsphdr->pdu_id == SDP_ERROR_RSP) { - status = -1; - goto end; - } - - pdata = rspbuf + sizeof(sdp_pdu_hdr_t); - pdata_len = rspsize - sizeof(sdp_pdu_hdr_t); - - if (pdata_len < sizeof(uint16_t)) { - SDPERR("Unexpected end of packet"); - status = -1; - goto end; - } - - rsp_count = ntohs(bt_get_unaligned((uint16_t *) pdata)); - attr_list_len += rsp_count; - pdata += sizeof(uint16_t); // pdata points to attribute list - pdata_len -= sizeof(uint16_t); - - if (pdata_len < rsp_count + sizeof(uint8_t)) { - SDPERR("Unexpected end of packet: continuation state data missing"); - status = -1; - goto end; - } - - cstate_len = *(uint8_t *) (pdata + rsp_count); - - SDPDBG("Attrlist byte count : %d\n", attr_list_len); - SDPDBG("Response byte count : %d\n", rsp_count); - SDPDBG("Cstate length : %d\n", cstate_len); - /* - * This is a split response, need to concatenate intermediate - * responses and the last one which will have cstate_len == 0 - */ - if (cstate_len > 0 || rsp_concat_buf.data_size != 0) { - uint8_t *targetPtr = NULL; - - cstate = cstate_len > 0 ? (sdp_cstate_t *) (pdata + rsp_count) : 0; - - // build concatenated response buffer - rsp_concat_buf.data = realloc(rsp_concat_buf.data, rsp_concat_buf.data_size + rsp_count); - targetPtr = rsp_concat_buf.data + rsp_concat_buf.data_size; - rsp_concat_buf.buf_size = rsp_concat_buf.data_size + rsp_count; - memcpy(targetPtr, pdata, rsp_count); - rsp_concat_buf.data_size += rsp_count; - } - } while (cstate); - - if (attr_list_len > 0) { - int scanned = 0; - - if (rsp_concat_buf.data_size != 0) { - pdata = rsp_concat_buf.data; - pdata_len = rsp_concat_buf.data_size; - } - - /* - * Response is a sequence of sequence(s) for one or - * more data element sequence(s) representing services - * for which attributes are returned - */ - scanned = sdp_extract_seqtype_safe(pdata, pdata_len, &dataType, &seqlen); - - SDPDBG("Bytes scanned : %d\n", scanned); - SDPDBG("Seq length : %d\n", seqlen); - - if (scanned && seqlen) { - pdata += scanned; - pdata_len -= scanned; - do { - int recsize = 0; - sdp_record_t *rec = sdp_extract_pdu_safe(pdata, pdata_len, &recsize); - if (rec == NULL) { - SDPERR("SVC REC is null\n"); - status = -1; - goto end; - } - if (!recsize) { - sdp_record_free(rec); - break; - } - scanned += recsize; - pdata += recsize; - pdata_len -= recsize; - - SDPDBG("Loc seq length : %d\n", recsize); - SDPDBG("Svc Rec Handle : 0x%x\n", rec->handle); - SDPDBG("Bytes scanned : %d\n", scanned); - SDPDBG("Attrlist byte count : %d\n", attr_list_len); - rec_list = sdp_list_append(rec_list, rec); - } while (scanned < attr_list_len && pdata_len > 0); - - SDPDBG("Successful scan of service attr lists\n"); - *rsp = rec_list; - } - } - end: - if (rsp_concat_buf.data) - free(rsp_concat_buf.data); - if (reqbuf) - free(reqbuf); - if (rspbuf) - free(rspbuf); - return status; -} - -/* - * Find devices in the piconet. - */ -int sdp_general_inquiry(inquiry_info *ii, int num_dev, int duration, uint8_t *found) -{ - int n = hci_inquiry(-1, 10, num_dev, NULL, &ii, 0); - if (n < 0) { - SDPERR("Inquiry failed:%s", strerror(errno)); - return -1; - } - *found = n; - return 0; -} - -int sdp_close(sdp_session_t *session) -{ - struct sdp_transaction *t; - int ret; - - if (!session) - return -1; - - ret = close(session->sock); - - t = session->priv; - - if (t) { - if (t->reqbuf) - free(t->reqbuf); - - if (t->rsp_concat_buf.data) - free(t->rsp_concat_buf.data); - - free(t); - } - free(session); - return ret; -} - -static inline int sdp_is_local(const bdaddr_t *device) -{ - return memcmp(device, BDADDR_LOCAL, sizeof(bdaddr_t)) == 0; -} - -static int sdp_connect_local(sdp_session_t *session) -{ - struct sockaddr_un sa; - - session->sock = socket(PF_UNIX, SOCK_STREAM, 0); - if (session->sock < 0) - return -1; - session->local = 1; - - sa.sun_family = AF_UNIX; - strcpy(sa.sun_path, SDP_UNIX_PATH); - - return connect(session->sock, (struct sockaddr *)&sa, sizeof(sa)); -} - -static int sdp_connect_l2cap(const bdaddr_t *src, - const bdaddr_t *dst, sdp_session_t *session) -{ - uint32_t flags = session->flags; - struct sockaddr_l2 sa; - int sk; - - session->sock = socket(PF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_L2CAP); - if (session->sock < 0) - return -1; - session->local = 0; - - sk = session->sock; - - if (flags & SDP_NON_BLOCKING) { - long arg = fcntl(sk, F_GETFL, 0); - fcntl(sk, F_SETFL, arg | O_NONBLOCK); - } - - sa.l2_family = AF_BLUETOOTH; - sa.l2_psm = 0; - - if (bacmp(src, BDADDR_ANY)) { - sa.l2_bdaddr = *src; - if (bind(sk, (struct sockaddr *) &sa, sizeof(sa)) < 0) - return -1; - } - - if (flags & SDP_WAIT_ON_CLOSE) { - struct linger l = { .l_onoff = 1, .l_linger = 1 }; - setsockopt(sk, SOL_SOCKET, SO_LINGER, &l, sizeof(l)); - } - - sa.l2_psm = htobs(SDP_PSM); - sa.l2_bdaddr = *dst; - - do { - int ret = connect(sk, (struct sockaddr *) &sa, sizeof(sa)); - if (!ret) - return 0; - if (ret < 0 && (flags & SDP_NON_BLOCKING) && - (errno == EAGAIN || errno == EINPROGRESS)) - return 0; - } while (errno == EBUSY && (flags & SDP_RETRY_IF_BUSY)); - - return -1; -} - -sdp_session_t *sdp_connect(const bdaddr_t *src, - const bdaddr_t *dst, uint32_t flags) -{ - sdp_session_t *session; - int err; - - if ((flags & SDP_RETRY_IF_BUSY) && (flags & SDP_NON_BLOCKING)) { - errno = EINVAL; - return NULL; - } - - session = sdp_create(-1, flags); - if (!session) - return NULL; - - if (sdp_is_local(dst)) { - if (sdp_connect_local(session) < 0) - goto fail; - } else { - if (sdp_connect_l2cap(src, dst, session) < 0) - goto fail; - } - - return session; - -fail: - err = errno; - if (session->sock >= 0) - close(session->sock); - if (session->priv) - free(session->priv); - free(session); - errno = err; - - return NULL; -} - -int sdp_get_socket(const sdp_session_t *session) -{ - return session->sock; -} - -uint16_t sdp_gen_tid(sdp_session_t *session) -{ - return session->tid++; -} |