diff options
| -rw-r--r-- | include/Makefile.am | 2 | ||||
| -rw-r--r-- | include/sdp.h | 396 | ||||
| -rw-r--r-- | include/sdp_internal.h | 216 | ||||
| -rw-r--r-- | include/sdp_lib.h | 529 |
4 files changed, 1142 insertions, 1 deletions
diff --git a/include/Makefile.am b/include/Makefile.am index 27a769fa..f615705a 100644 --- a/include/Makefile.am +++ b/include/Makefile.am @@ -4,7 +4,7 @@ includedir = @includedir@/bluetooth -include_HEADERS = bluetooth.h hci.h hci_lib.h hci_uart.h hci_vhci.h l2cap.h sco.h rfcomm.h +include_HEADERS = bluetooth.h hci.h hci_lib.h hci_uart.h hci_vhci.h l2cap.h sco.h rfcomm.h sdp.h sdp_lib.h sdp_internal.h bluetooth: ln -s . bluetooth diff --git a/include/sdp.h b/include/sdp.h new file mode 100644 index 00000000..77564850 --- /dev/null +++ b/include/sdp.h @@ -0,0 +1,396 @@ +/* + Service Discovery Protocol (SDP) + Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com> + + Based on original SDP implementation by Nokia Corporation. + Copyright (C) 2001,2002 Nokia Corporation. + Original author Guruprasad Krishnamurthy <guruprasad.krishnamurthy@nokia.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 as + published by the Free Software Foundation; + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. + IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM, + OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER + RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE + USE OR PERFORMANCE OF THIS SOFTWARE. + + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS, + TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED. +*/ + +/* + * $Id$ + */ + +#ifndef SDP_H +#define SDP_H + +#include <stdint.h> + +#define SDP_UNIX_PATH "/var/run/sdp" +#define SDP_RESPONSE_TIMEOUT 20 +#define SDP_REQ_BUFFER_SIZE 2048 +#define SDP_RSP_BUFFER_SIZE 65535 +#define SDP_PDU_CHUNK_SIZE 1024 + +/* + * All definitions are based on Bluetooth Assigned Numbers + * of the Bluetooth Specification + */ +#define SDP_PSM 0x0001 + +/* + * Protocol UUIDs + */ +#define SDP_UUID 0x0001 +#define RFCOMM_UUID 0x0003 +#define TCS_BIN_UUID 0x0005 +#define L2CAP_UUID 0x0100 +#define IP_UUID 0x0009 +#define UDP_UUID 0x0002 +#define TCP_UUID 0x0004 +#define TCS_BIN_UUID 0x0005 +#define TCS_AT_UUID 0x0006 +#define OBEX_UUID 0x0008 +#define FTP_UUID 0x000A +#define HTTP_UUID 0x000C +#define WSP_UUID 0x000E +#define BNEP_UUID 0x000F +#define HIDP_UUID 0x0011 +#define CMTP_UUID 0x001B + +/* + * Service class identifiers of standard services and service groups + */ +#define SDP_SERVER_SVCLASS_ID 0x1000 +#define BROWSE_GRP_DESC_SVCLASS_ID 0x1001 +#define PUBLIC_BROWSE_GROUP 0x1002 +#define SERIAL_PORT_SVCLASS_ID 0x1101 +#define LAN_ACCESS_SVCLASS_ID 0x1102 +#define DIALUP_NET_SVCLASS_ID 0x1103 +#define IRMC_SYNC_SVCLASS_ID 0x1104 +#define OBEX_OBJPUSH_SVCLASS_ID 0x1105 +#define OBEX_FILETRANS_SVCLASS_ID 0x1106 +#define IRMC_SYNC_CMD_SVCLASS_ID 0x1107 +#define HEADSET_SVCLASS_ID 0x1108 +#define CORDLESS_TELEPHONY_SVCLASS_ID 0x1109 +#define INTERCOM_SVCLASS_ID 0x1110 +#define FAX_SVCLASS_ID 0x1111 +#define HEADSET_AGW_SVCLASS_ID 0x1112 +#define PANU_SVCLASS_ID 0x1115 +#define NAP_SVCLASS_ID 0x1116 +#define GN_SVCLASS_ID 0x1117 +#define IMAGING_SVCLASS_ID 0x111a +#define IMAGING_RESPONDER_SVCLASS_ID 0x111b +#define HANDSFREE_SVCLASS_ID 0x111e +#define HANDSFREE_AUDIO_GW_SVCLASS_ID 0x111f +#define HID_SVCLASS_ID 0x1124 +#define CIP_SVCLASS_ID 0x1128 +#define PNP_INFO_SVCLASS_ID 0x1200 +#define GENERIC_NETWORKING_SVCLASS_ID 0x1201 +#define GENERIC_FILETRANS_SVCLASS_ID 0x1202 +#define GENERIC_AUDIO_SVCLASS_ID 0x1203 +#define GENERIC_TELEPHONY_SVCLASS_ID 0x1204 + +/* + * Standard profile descriptor identifiers; note these + * may be identical to some of the service classes defined above + */ +#define SERIAL_PORT_PROFILE_ID 0x1101 +#define LAN_ACCESS_PROFILE_ID 0x1102 +#define DIALUP_NET_PROFILE_ID 0x1103 +#define IRMC_SYNC_PROFILE_ID 0x1104 +#define OBEX_OBJPUSH_PROFILE_ID 0x1105 +#define OBEX_FILETRANS_PROFILE_ID 0x1106 +#define IRMC_SYNC_CMD_PROFILE_ID 0x1107 +#define HEADSET_PROFILE_ID 0x1108 +#define CORDLESS_TELEPHONY_PROFILE_ID 0x1109 +#define INTERCOM_PROFILE_ID 0x1110 +#define FAX_PROFILE_ID 0x1111 +#define HEADSET_AGW_PROFILE_ID 0x1112 +#define PANU_PROFILE_ID 0x1115 +#define NAP_PROFILE_ID 0x1116 +#define GN_PROFILE_ID 0x1117 +#define IMAGING_PROFILE_ID 0x111a +#define IMAGING_RESPONDER_PROFILE_ID 0x111b +#define HANDSFREE_PROFILE_ID 0x111e +#define HID_PROFILE_ID 0x1124 +#define CIP_PROFILE_ID 0x1128 + +/* + * Attribute identifier codes + */ +#define SDP_SERVER_RECORD_HANDLE 0x0000 + +/* + * Possible values for attribute-id are listed below. + * See SDP Spec, section "Service Attribute Definitions" for more details. + */ +#define SDP_ATTR_RECORD_HANDLE 0x0000 +#define SDP_ATTR_SVCLASS_ID_LIST 0x0001 +#define SDP_ATTR_RECORD_STATE 0x0002 +#define SDP_ATTR_SERVICE_ID 0x0003 +#define SDP_ATTR_PROTO_DESC_LIST 0x0004 +#define SDP_ATTR_BROWSE_GRP_LIST 0x0005 +#define SDP_ATTR_LANG_BASE_ATTR_ID_LIST 0x0006 +#define SDP_ATTR_SVCINFO_TTL 0x0007 +#define SDP_ATTR_SERVICE_AVAILABILITY 0x0008 +#define SDP_ATTR_PFILE_DESC_LIST 0x0009 +#define SDP_ATTR_DOC_URL 0x000A +#define SDP_ATTR_CLNT_EXEC_URL 0x000B +#define SDP_ATTR_ICON_URL 0x000C + +#define SDP_ATTR_IP_SUBNET 0x0200 +#define SDP_ATTR_SERVICE_VERSION 0x0300 +#define SDP_EXTERNAL_NETWORK 0x0301 +#define SDP_ATTR_SUPPORTED_DATA_STORES_LIST 0x0301 +#define SDP_ATTR_REMOTE_AUDIO_VOLUME_CONTROL 0x0302 +#define SDP_ATTR_SUPPORTED_FORMATS_LIST 0x0303 +#define SDP_ATTR_SECURITY_DESC 0x030A +#define SDP_ATTR_NET_ACCESS_TYPE 0x030B +#define SDP_ATTR_MAX_NET_ACCESSRATE 0x030C +#define SDP_ATTR_IP4_SUBNET 0x030D +#define SDP_ATTR_IP6_SUBNET 0x030E +#define SDP_SUPPORTED_FEATURES 0x0311 + + +/* + * These identifiers are based on the SDP spec stating that + * "base attribute id of the primary (universal) language must be 0x0100" + */ +#define SDP_PRIMARY_LANG_BASE 0x0100 + +#define SDP_ATTR_SVCNAME_PRIMARY 0x0000 + SDP_PRIMARY_LANG_BASE +#define SDP_ATTR_SVCDESC_PRIMARY 0x0001 + SDP_PRIMARY_LANG_BASE +#define SDP_ATTR_PROVNAME_PRIMARY 0x0002 + SDP_PRIMARY_LANG_BASE + +/* + * Other languages should have their own offset; e.g.: + * #define XXXLangBase yyyy + * #define AttrServiceName_XXX 0x0000+XXXLangBase + * ... + */ + +/* + * These attributes are specific to the SDP server only; i.e., + * can be present only in the service record of the SDP server + */ +#define SDP_ATTR_VERSION_NUM_LIST 0x0200 +#define SDP_ATTR_SVCDB_STATE 0x0201 +#define SDP_ATTR_GROUP_ID 0x0200 + +/* + * The Data representation in SDP PDUs (pps 339, 340 of BT SDP Spec) + * These are the exact data type+size descriptor values + * that go into the PDU buffer. + * + * The datatype (leading 5bits) + size descriptor (last 3 bits) + * is 8 bits. The size descriptor is critical to extract the + * right number of bytes for the data value from the PDU. + * + * For most basic types, the datatype+size descriptor is + * straightforward. However for constructed types and strings, + * the size of the data is in the next "n" bytes following the + * 8 bits (datatype+size) descriptor. Exactly what the "n" is + * specified in the 3 bits of the data size descriptor. + * + * TextString and URLString can be of size 2^{8, 16, 32} bytes + * DataSequence and DataSequenceAlternates can be of size 2^{8, 16, 32} + * The size are computed post-facto in the API and are not known apriori + */ +#define SDP_DATA_NIL 0x00 +#define SDP_UINT8 0x08 +#define SDP_UINT16 0x09 +#define SDP_UINT32 0x0A +#define SDP_UINT64 0x0B +#define SDP_UINT128 0x0C +#define SDP_INT8 0x10 +#define SDP_INT16 0x11 +#define SDP_INT32 0x12 +#define SDP_INT64 0x13 +#define SDP_INT128 0x14 +#define SDP_UUID_UNSPEC 0x18 +#define SDP_UUID16 0x19 +#define SDP_UUID32 0x1A +#define SDP_UUID128 0x1C +#define SDP_TEXT_STR_UNSPEC 0x20 +#define SDP_TEXT_STR8 0x25 +#define SDP_TEXT_STR16 0x26 +#define SDP_TEXT_STR32 0x27 +#define SDP_BOOL 0x28 +#define SDP_SEQ_UNSPEC 0x30 +#define SDP_SEQ8 0x35 +#define SDP_SEQ16 0x36 +#define SDP_SEQ32 0x37 +#define SDP_ALT_UNSPEC 0x38 +#define SDP_ALT8 0x3D +#define SDP_ALT16 0x3E +#define SDP_ALT32 0x3F +#define SDP_URL_STR_UNSPEC 0x40 +#define SDP_URL_STR8 0x45 +#define SDP_URL_STR16 0x46 +#define SDP_URL_STR32 0x47 + +/* + * The PDU identifiers of SDP packets between client and server + */ +#define SDP_ERROR_RSP 0x01 +#define SDP_SVC_SEARCH_REQ 0x02 +#define SDP_SVC_SEARCH_RSP 0x03 +#define SDP_SVC_ATTR_REQ 0x04 +#define SDP_SVC_ATTR_RSP 0x05 +#define SDP_SVC_SEARCH_ATTR_REQ 0x06 +#define SDP_SVC_SEARCH_ATTR_RSP 0x07 + +/* + * Some additions to support service registration. + * These are outside the scope of the Bluetooth specification + */ +#define SDP_SVC_REGISTER_REQ 0x75 +#define SDP_SVC_REGISTER_RSP 0x76 +#define SDP_SVC_UPDATE_REQ 0x77 +#define SDP_SVC_UPDATE_RSP 0x78 +#define SDP_SVC_REMOVE_REQ 0x79 +#define SDP_SVC_REMOVE_RSP 0x80 + +/* + * Values of the flags parameter to sdp_record_register + */ +#define SDP_RECORD_PERSIST 0x01 + +/* + * Values of the flags parameter to sdp_connect + */ +#define SDP_RETRY_IF_BUSY 0x01 + +/* + * SDP Error codes + */ +#define SDP_INVALID_VERSION 0x0001 +#define SDP_INVALID_RECORD_HANDLE 0x0002 +#define SDP_INVALID_SYNTAX 0x0003 +#define SDP_INVALID_PDU_SIZE 0x0004 +#define SDP_INVALID_CSTATE 0x0005 + +/* + * SDP PDU + */ +typedef struct { + uint8_t pdu_id; + uint16_t tid; + uint16_t plen; +} __attribute__ ((packed)) sdp_pdu_hdr_t; + +/* + * Common definitions for attributes in the SDP. + * Should the type of any of these change, you need only make a change here. + */ +typedef struct { + char data[16]; +} uint128_t; + +typedef struct { + uint8_t type; + union { + uint16_t uuid16; + uint32_t uuid32; + uint128_t uuid128; + } value; +} uuid_t; + +#define SDP_IS_UUID(x) ((x) == SDP_UUID16 || (x) == SDP_UUID32 || (x) ==SDP_UUID128) + +typedef struct _sdp_list sdp_list_t; +struct _sdp_list { + sdp_list_t *next; + void *data; +}; + +/* + * User-visible strings can be in many languages + * in addition to the universal language. + * + * Language meta-data includes language code in ISO639 + * followed by the encoding format. The third field in this + * structure is the attribute offset for the language. + * User-visible strings in the specified language can be + * obtained at this offset. + */ +typedef struct { + uint16_t code_ISO639; + uint16_t encoding; + uint16_t base_offset; +} sdp_lang_attr_t; + +/* + * Profile descriptor is the Bluetooth profile metadata. If a + * service conforms to a well-known profile, then its profile + * identifier (UUID) is an attribute of the service. In addition, + * if the profile has a version number it is specified here. + */ +typedef struct { + uuid_t uuid; + uint16_t version; +} sdp_profile_desc_t; + +typedef struct { + uint8_t major; + uint8_t minor; +} sdp_version_t; + +typedef struct { + char *data; + int data_size; + int buf_size; +} sdp_buf_t; + +typedef struct { + uint32_t handle; + + /* + * Search pattern: a sequence of all UUIDs seen in this record + */ + sdp_list_t *pattern; + sdp_list_t *attrlist; +} sdp_record_t; + +typedef struct sdp_data_struct sdp_data_t; +struct sdp_data_struct { + uint8_t dtd; + uint16_t attrId; + union { + int8_t int8; + int16_t int16; + int32_t int32; + int64_t int64; + uint128_t int128; + uint8_t uint8; + uint16_t uint16; + uint32_t uint32; + uint64_t uint64; + uint128_t uint128; + uuid_t uuid; + char *str; + sdp_data_t *dataseq; + } val; + sdp_data_t *next; + int unitSize; +}; + +/* + * a session with an SDP server + */ +typedef struct { + int sock; + int state; + int local; + int flags; + uint16_t tid; // Current transaction ID +} sdp_session_t; + +#endif diff --git a/include/sdp_internal.h b/include/sdp_internal.h new file mode 100644 index 00000000..fabf7a0d --- /dev/null +++ b/include/sdp_internal.h @@ -0,0 +1,216 @@ +/* + Service Discovery Protocol (SDP) + Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>, Stephen Crane <steve.crane@rococosoft.com> + + Based on original SDP implementation by Nokia Corporation. + Copyright (C) 2001,2002 Nokia Corporation. + Original author Guruprasad Krishnamurthy <guruprasad.krishnamurthy@nokia.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 as + published by the Free Software Foundation; + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. + IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM, + OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER + RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE + USE OR PERFORMANCE OF THIS SOFTWARE. + + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS, + TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED. +*/ + +/* + * $Id$ + */ + +#ifndef SDP_INTERNAL_H +#define SDP_INTERNAL_H + +#include <syslog.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <bluetooth/bluetooth.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 + +#define SDP_BASIC_ATTR_PDUFORM_SIZE 32 +#define SDP_SEQ_PDUFORM_SIZE 128 +#define SDP_UUID_SEQ_SIZE 256 +#define SDP_MAX_ATTR_LEN 65535 + +/* + * Generate unique transaction identifiers + */ +static inline uint16_t sdp_gen_tid(sdp_session_t *session) +{ + return session->tid++; +} + +sdp_record_t *sdp_extract_pdu(const char *pdata, int *scanned); +sdp_data_t *sdp_extract_string(char *, int *); + +void sdp_data_print(sdp_data_t *data); +void sdp_print_service_attr(sdp_list_t *alist); + +int sdp_attrid_comp_func(const void *key1, const void *key2); + +void sdp_set_seq_len(char *ptr, int length); +void sdp_set_attrid(sdp_buf_t *pdu, uint16_t id); +void sdp_append_to_pdu(sdp_buf_t *dst, sdp_data_t *d); +void sdp_append_to_buf(sdp_buf_t *dst, char *data, int len); + +int sdp_gen_pdu(sdp_buf_t *pdu, sdp_data_t *data); +int sdp_gen_record_pdu(const sdp_record_t *rec, sdp_buf_t *pdu); + +int sdp_extract_seqtype(const char *buf, uint8_t *dtdp, int *seqlen); + +sdp_data_t *sdp_extract_attr(const char *pdata, int *extractedLength, sdp_record_t *rec); + +void sdp_pattern_add_uuid(sdp_record_t *rec, uuid_t *uuid); +void sdp_pattern_add_uuidseq(sdp_record_t *rec, sdp_list_t *seq); + +int sdp_send_req_w4_rsp(sdp_session_t *session, char *req, char *rsp, int reqsize, int *rspsize); + +typedef struct { + uint8_t length; + unsigned char data[16]; +} __attribute__ ((packed)) sdp_cstate_t; + +/* + * SDP unaligned access. + * based on linux/asm-<arch>/unaligned.h + */ +#if defined(__i386__) + +#define sdp_get_unaligned(ptr) (*(ptr)) +#define sdp_put_unaligned(val, ptr) ((void)( *(ptr) = (val) )) + +#else + +struct __una_u64 { uint64_t x; } __attribute__((packed)); +struct __una_u32 { uint32_t x; } __attribute__((packed)); +struct __una_u16 { uint16_t x; } __attribute__((packed)); + +static inline unsigned long long __uldq(const unsigned long *r11) +{ + const struct __una_u64 *ptr = (const struct __una_u64 *) r11; + return ptr->x; +} + +static inline unsigned long __uldl(const unsigned int * r11) +{ + const struct __una_u32 *ptr = (const struct __una_u32 *) r11; + return ptr->x; +} + +static inline unsigned long __uldw(const unsigned short * r11) +{ + const struct __una_u16 *ptr = (const struct __una_u16 *) r11; + return ptr->x; +} + +static inline void __ustq(unsigned long r5, unsigned long * r11) +{ + struct __una_u64 *ptr = (struct __una_u64 *) r11; + ptr->x = r5; +} + +static inline void __ustl(unsigned long r5, unsigned int * r11) +{ + struct __una_u32 *ptr = (struct __una_u32 *) r11; + ptr->x = r5; +} + +static inline void __ustw(unsigned long r5, unsigned short * r11) +{ + struct __una_u16 *ptr = (struct __una_u16 *) r11; + ptr->x = r5; +} + +static inline unsigned long long __sdp_get_unaligned(const void *ptr, size_t size) +{ + unsigned long long val = 0; + switch (size) { + case 1: + val = *(const unsigned char *)ptr; + break; + case 2: + val = __uldw((const unsigned short *)ptr); + break; + case 4: + val = __uldl((const unsigned int *)ptr); + break; + case 8: + val = __uldq((const unsigned long *)ptr); + break; + } + return val; +} + +static inline void __sdp_put_unaligned(unsigned long val, void *ptr, size_t size) +{ + switch (size) { + case 1: + *(unsigned char *)ptr = (val); + break; + case 2: + __ustw(val, (unsigned short *)ptr); + break; + case 4: + __ustl(val, (unsigned int *)ptr); + break; + case 8: + __ustq(val, (unsigned long *)ptr); + break; + } +} + +#define sdp_get_unaligned(ptr) \ + ((__typeof__(*(ptr)))__sdp_get_unaligned((ptr), sizeof(*(ptr)))) + +#define sdp_put_unaligned(x,ptr) \ + __sdp_put_unaligned((unsigned long)(x), (ptr), sizeof(*(ptr))) + +#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) + +#endif diff --git a/include/sdp_lib.h b/include/sdp_lib.h new file mode 100644 index 00000000..4306eb55 --- /dev/null +++ b/include/sdp_lib.h @@ -0,0 +1,529 @@ +/* + Service Discovery Protocol (SDP) + Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>, Stephen Crane <steve.crane@rococosoft.com> + + Based on original SDP implementation by Nokia Corporation. + Copyright (C) 2001,2002 Nokia Corporation. + Original author Guruprasad Krishnamurthy <guruprasad.krishnamurthy@nokia.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 as + published by the Free Software Foundation; + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. + IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM, + OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER + RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE + USE OR PERFORMANCE OF THIS SOFTWARE. + + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS, + TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED. + */ + +/* + * $Id$ + */ + +#ifndef SDP_LIB_H +#define SDP_LIB_H + +#include <sys/socket.h> +#include <bluetooth/bluetooth.h> +#include <bluetooth/hci.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * SDP lists + */ +typedef void(*sdp_list_func_t)(void *, void *); +typedef void(*sdp_free_func_t)(void *); +typedef int (*sdp_comp_func_t)(const void *, const void *); + +sdp_list_t *sdp_list_append(sdp_list_t *list, void *d); +sdp_list_t *sdp_list_remove(sdp_list_t *list, void *d); +sdp_list_t *sdp_list_insert_sorted(sdp_list_t *list, void *data, sdp_comp_func_t f); +void sdp_list_free(sdp_list_t *list, sdp_free_func_t f); + +static inline int sdp_list_len(const sdp_list_t *list) +{ + int n = 0; + for (; list; list = list->next) + n++; + return n; +} + +static inline sdp_list_t *sdp_list_find(sdp_list_t *list, void *u, sdp_comp_func_t f) +{ + for (; list; list = list->next) + if (f(list->data, u) == 0) + return list; + return NULL; +} + +static inline void sdp_list_foreach(sdp_list_t *list, sdp_list_func_t f, void *u) +{ + for (; list; list = list->next) + f(list->data, u); +} + +/* + * create an L2CAP connection to a Bluetooth device + * + * INPUT: + * + * bdaddr_t *src: + * Address of the local device to use to make the connection + * (or BDADDR_ANY) + * + * bdaddr_t *dst: + * Address of the SDP server device + */ +sdp_session_t *sdp_connect(const bdaddr_t *src, const bdaddr_t *dst, uint32_t flags); +int sdp_close(sdp_session_t *session); + +static inline int sdp_get_socket(const sdp_session_t *s) +{ + return s->sock; +} + +/* + * find all devices in the piconet + */ +int sdp_general_inquiry(inquiry_info *ii, int dev_num, int duration, uint8_t *found); + +/* flexible extraction of basic attributes - Jean II */ +int sdp_get_int_attr(const sdp_record_t *rec, uint16_t attr, int *value); +int sdp_get_string_attr(const sdp_record_t *rec, uint16_t attr, char *value, int valuelen); + +/* + * Basic sdp data functions + */ +sdp_data_t *sdp_data_alloc(uint8_t dtd, const void *value); +void sdp_data_free(sdp_data_t *data); +sdp_data_t *sdp_data_get(const sdp_record_t *rec, uint16_t attr_id); + +sdp_data_t *sdp_seq_alloc(void **dtds, void **values, int len); +sdp_data_t *sdp_seq_append(sdp_data_t *seq, sdp_data_t *data); + +int sdp_attr_add(sdp_record_t *rec, uint16_t attr, sdp_data_t *data); +void sdp_attr_remove(sdp_record_t *rec, uint16_t attr); +void sdp_attr_replace(sdp_record_t *rec, uint16_t attr, sdp_data_t *data); +int sdp_set_uuidseq_attr(sdp_record_t *rec, uint16_t attr, sdp_list_t *seq); +int sdp_get_uuidseq_attr(const sdp_record_t *rec, uint16_t attr, sdp_list_t **seqp); + +/* + * NOTE that none of the functions below will update the SDP server, + * unless the {register, update}sdp_record_t() function is invoked. + * All functions which return an integer value, return 0 on success + * or -1 on failure. + */ + +/* + * Create an attribute and add it to the service record's attribute list. + * This consists of the data type descriptor of the attribute, + * the value of the attribute and the attribute identifier. + */ +int sdp_attr_add_new(sdp_record_t *rec, uint16_t attr, uint8_t dtd, const void *p); + +/* + * Set the information attributes of the service record. + * The set of attributes comprises service name, description + * and provider name + */ +void sdp_set_info_attr(sdp_record_t *rec, const char *name, const char *prov, const char *desc); + +/* + * Set the ServiceClassID attribute to the sequence specified by seq. + * Note that the identifiers need to be in sorted order from the most + * specific to the most generic service class that this service + * conforms to. + */ +static inline int sdp_set_service_classes(sdp_record_t *rec, sdp_list_t *seq) +{ + return sdp_set_uuidseq_attr(rec, SDP_ATTR_SVCLASS_ID_LIST, seq); +} + +/* + * Get the service classes to which the service conforms. + * + * When set, the list contains elements of ServiceClassIdentifer(uint16_t) + * ordered from most specific to most generic + */ +static inline int sdp_get_service_classes(const sdp_record_t *rec, sdp_list_t **seqp) +{ + return sdp_get_uuidseq_attr(rec, SDP_ATTR_SVCLASS_ID_LIST, seqp); +} + +/* + * Set the BrowseGroupList attribute to the list specified by seq. + * + * A service can belong to one or more service groups + * and the list comprises such group identifiers (UUIDs) + */ +static inline int sdp_set_browse_groups(sdp_record_t *rec, sdp_list_t *seq) +{ + return sdp_set_uuidseq_attr(rec, SDP_ATTR_BROWSE_GRP_LIST, seq); +} + +/* + * Set the access protocols of the record to those specified in proto + */ +int sdp_set_access_protos(sdp_record_t *rec, const sdp_list_t *proto); + +/* + * Get protocol port (i.e. PSM for L2CAP, Channel for RFCOMM) + */ +int sdp_get_proto_port(const sdp_list_t *list, int proto); + +/* + * Get protocol descriptor. + */ +sdp_data_t *sdp_get_proto_desc(sdp_list_t *list, int proto); + +/* + * Set the LanguageBase attributes to the values specified in list + * (a linked list of sdp_lang_attr_t objects, one for each language in + * which user-visible attributes are present). + */ +int sdp_set_lang_attr(sdp_record_t *rec, const sdp_list_t *list); + +/* + * Set the ServiceInfoTimeToLive attribute of the service. + * This is the number of seconds that this record is guaranteed + * not to change after being obtained by a client. + */ +static inline int sdp_set_service_ttl(sdp_record_t *rec, uint32_t ttl) +{ + return sdp_attr_add_new(rec, SDP_ATTR_SVCINFO_TTL, SDP_UINT32, &ttl); +} + +/* + * Set the ServiceRecordState attribute of a service. This is + * guaranteed to change if there is any kind of modification to + * the record. + */ +static inline int sdp_set_record_state(sdp_record_t *rec, uint32_t state) +{ + return sdp_attr_add_new(rec, SDP_ATTR_RECORD_STATE, SDP_UINT32, &state); +} + +/* + * Set the ServiceID attribute of a service. + */ +void sdp_set_service_id(sdp_record_t *rec, uuid_t uuid); + +/* + * Set the GroupID attribute of a service + */ +void sdp_set_group_id(sdp_record_t *rec, uuid_t grouuuid); + +/* + * Set the ServiceAvailability attribute of a service. + * + * Note that this represents the relative availability + * of the service: 0x00 means completely unavailable; + * 0xFF means maximum availability. + */ +static inline int sdp_set_service_avail(sdp_record_t *rec, uint8_t avail) +{ + return sdp_attr_add_new(rec, SDP_ATTR_SERVICE_AVAILABILITY, SDP_UINT8, &avail); +} + +/* + * Set the profile descriptor list attribute of a record. + * + * 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. + */ +int sdp_set_profile_descs(sdp_record_t *rec, const sdp_list_t *desc); + +/* + * Set URL attributes of a record. + * + * ClientExecutableURL: a URL to a client's platform specific (WinCE, + * PalmOS) executable code that can be used to access this service. + * + * DocumentationURL: a URL pointing to service documentation + * + * IconURL: a URL to an icon that can be used to represent this service. + * + * Note: 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 *clientExecURL, const char *docURL, const char *iconURL); + +/* + * a service search request. + * + * INPUT : + * + * sdp_list_t *search_list + * list containing elements of the search + * pattern. Each entry in the list is a UUID + * of the service to be searched + * + * uint16_t max_rec_num + * An integer specifying the maximum number of + * entries that the client can handle in the response. + * + * OUTPUT : + * + * int return value + * 0 + * The request completed successfully. This does not + * mean the requested services were found + * -1 + * The request completed unsuccessfully + * + * 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 records (sdp_record_t) + */ +int sdp_service_search_req(sdp_session_t *session, const sdp_list_t *search_list, uint16_t max_rec_num, sdp_list_t **rsp_list); + +/* + * 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_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 + * The request completed successfully. This does not + * mean the requested services were found + * -1 + * The request completed unsuccessfully due to a timeout + */ + +typedef enum { + /* + * Attributes are specified as individual elements + */ + SDP_ATTR_REQ_INDIVIDUAL = 1, + /* + * Attributes are specified as a range + */ + SDP_ATTR_REQ_RANGE +} sdp_attrreq_type_t; + +sdp_record_t *sdp_service_attr_req(sdp_session_t *session, uint32_t handle, sdp_attrreq_type_t reqtype, const sdp_list_t *attrid_list); + +/* + * 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_list + * 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) + * + * OUTPUT : + * int return value + * 0 + * The request completed successfully. This does not + * mean the requested services were found + * -1 + * The request completed unsuccessfully due to a timeout + * + * sdp_list_t *rsp_list + * 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 *. + */ +int sdp_service_search_attr_req(sdp_session_t *session, const sdp_list_t *search_list, sdp_attrreq_type_t reqtype, const sdp_list_t *attrid_list, sdp_list_t **rsp_list); + +/* + * Allocate/free a service record and its attributes + */ +sdp_record_t *sdp_record_alloc(void); +void sdp_record_free(sdp_record_t *rec); + +/* + * Register a service record. + * + * Note: It is the responsbility of the Service Provider to create the + * record first and set its attributes using setXXX() methods. + * + * The service provider must then call sdp_record_register() to make + * the service record visible to SDP clients. + */ +int sdp_record_register(sdp_session_t *sess, sdp_record_t *rec, uint8_t flags); + +/* + * Unregister a service record. + */ +int sdp_record_unregister(sdp_session_t *sess, sdp_record_t *rec); + +/* + * Update an existing service record. (Calling this function + * before a previous call to sdp_record_register() will result + * in an error.) + */ +int sdp_record_update(sdp_session_t *sess, const sdp_record_t *rec); + +void sdp_record_print(const sdp_record_t *rec); + +/* + * UUID functions + */ +uuid_t *sdp_uuid16_create(uuid_t *uuid, uint16_t data); +uuid_t *sdp_uuid32_create(uuid_t *uuid, uint32_t data); +uuid_t *sdp_uuid128_create(uuid_t *uuid, const void *data); +int sdp_uuid16_cmp(const void *p1, const void *p2); +int sdp_uuid128_cmp(const void *p1, const void *p2); +uuid_t *sdp_uuid_to_uuid128(uuid_t *uuid); +void sdp_uuid16_to_uuid128(uuid_t *uuid128, uuid_t *uuid16); +int sdp_uuid128_to_uuid(uuid_t *uuid); +int sdp_uuid_to_proto(uuid_t *uuid); +int sdp_uuid_extract(const char *buffer, uuid_t *uuid, int *scanned); +void sdp_uuid_print(const uuid_t *uuid); + +#define MAX_LEN_UUID_STR 37 +#define MAX_LEN_PROTOCOL_UUID_STR 8 +#define MAX_LEN_SERVICECLASS_UUID_STR 24 +#define MAX_LEN_PROFILEDESCRIPTOR_UUID_STR 22 + +int sdp_uuid2strn(const uuid_t *uuid, char *str, size_t n); +int sdp_proto_uuid2strn(const uuid_t *uuid, char *str, size_t n); +int sdp_svclass_uuid2strn(const uuid_t *uuid, char *str, size_t n); +int sdp_profile_uuid2strn(const uuid_t *uuid, char *str, size_t n); + +/* + * In all the sdp_get_XXX(handle, XXX *xxx) functions below, + * the XXX * is set to point to the value, should it exist + * and 0 is returned. If the value does not exist, -1 is + * returned and errno set to ENODATA. + * + * In all the methods below, the memory management rules are + * simple. Don't free anything! The pointer returned, in the + * case of constructed types, is a pointer to the contents + * of the sdp_record_t. + */ + +/* + * Get the access protocols from the service record + */ +int sdp_get_access_protos(const sdp_record_t *rec, sdp_list_t **protos); + +/* + * Extract the list of browse groups to which the service belongs. + * When set, seqp contains elements of GroupID (uint16_t) + */ +static inline int sdp_get_browse_groups(const sdp_record_t *rec, sdp_list_t **seqp) +{ + return sdp_get_uuidseq_attr(rec, SDP_ATTR_BROWSE_GRP_LIST, seqp); +} + +/* + * Extract language attribute meta-data of the service record. + * For each language in the service record, LangSeq has a struct of type + * sdp_lang_attr_t. + */ +int sdp_get_lang_attr(const sdp_record_t *rec, sdp_list_t **langSeq); + +/* + * Extract the Bluetooth profile descriptor sequence from a record. + * Each element in the list is of type sdp_profile_desc_t + * which contains the UUID of the profile and its version number + * (encoded as major and minor in the high-order 8bits + * and low-order 8bits respectively of the uint16_t) + */ +int sdp_get_profile_descs(const sdp_record_t *rec, sdp_list_t **profDesc); + +/* + * Extract SDP server version numbers + * + * Note: that this is an attribute of the SDP server only and + * contains a list of uint16_t each of which represent the + * major and minor SDP version numbers supported by this server + */ +int sdp_get_server_ver(const sdp_record_t *rec, sdp_list_t **pVnumList); + +int sdp_get_service_id(const sdp_record_t *rec, uuid_t *uuid); +int sdp_get_group_id(const sdp_record_t *rec, uuid_t *uuid); +int sdp_get_record_state(const sdp_record_t *rec, uint32_t *svcRecState); +int sdp_get_service_avail(const sdp_record_t *rec, uint8_t *svcAvail); +int sdp_get_service_ttl(const sdp_record_t *rec, uint32_t *svcTTLInfo); +int sdp_get_database_state(const sdp_record_t *rec, uint32_t *svcDBState); + +static inline int sdp_get_service_name(const sdp_record_t *rec, char *str, int len) +{ + return sdp_get_string_attr(rec, SDP_ATTR_SVCNAME_PRIMARY, str, len); +} + +static inline int sdp_get_service_desc(const sdp_record_t *rec, char *str, int len) +{ + return sdp_get_string_attr(rec, SDP_ATTR_SVCDESC_PRIMARY, str, len); +} + +static inline int sdp_get_provider_name(const sdp_record_t *rec, char *str, int len) +{ + return sdp_get_string_attr(rec, SDP_ATTR_PROVNAME_PRIMARY, str, len); +} + +static inline int sdp_get_doc_url(const sdp_record_t *rec, char *str, int len) +{ + return sdp_get_string_attr(rec, SDP_ATTR_DOC_URL, str, len); +} + +static inline int sdp_get_clnt_exec_url(const sdp_record_t *rec, char *str, int len) +{ + return sdp_get_string_attr(rec, SDP_ATTR_CLNT_EXEC_URL, str, len); +} + +static inline int sdp_get_icon_url(const sdp_record_t *rec, char *str, int len) +{ + return sdp_get_string_attr(rec, SDP_ATTR_ICON_URL, str, len); +} + +#ifdef __cplusplus +} +#endif + +#endif |