Bluetooth: Classic: Enable BIP features

include/zephyr/bluetooth/classic/obex.h

@@ -21,10 +21,14 @@
 #include <errno.h>
 #include <stdbool.h>
 
+#include <zephyr/bluetooth/uuid.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+#define BT_OBEX_MIN_MTU 255
+
 /** @brief OBEX Response Code. */
 enum __packed bt_obex_rsp_code {
 	/** Continue */
@@ -1151,6 +1155,57 @@ int bt_obex_add_header_body(struct net_buf *buf, uint16_t len, const uint8_t *bo
  */
 int bt_obex_add_header_end_body(struct net_buf *buf, uint16_t len, const uint8_t *body);
 
+/** @brief Add Header: a chunk (may be a final chunk) of the object body.
+ *
+ *  The function is used to help to add body/end body for the upperlayer.
+ *  When the tail room of the buffer is more than the passed body room, and the total length of
+ *  buffer is not more than the mopl if the body has been added, the header end body will be
+ *  added. Or, the header body will be added.
+ *
+ *  @param buf Buffer needs to be sent.
+ *  @param mopl The MOPL of the OBEX connection
+ *  @param len Length of body.
+ *  @param body Object Body.
+ *  @param added_len The added length.
+ *
+ *  @return 0 in case of success or negative value in case of error.
+ */
+static inline int bt_obex_add_header_body_or_end_body(struct net_buf *buf, uint16_t mopl,
+						      uint16_t len, const uint8_t *body,
+						      uint16_t *added_len)
+{
+	uint16_t tx_len;
+	int err;
+
+	if ((buf == NULL) || (body == NULL) || (added_len == NULL) || (mopl < BT_OBEX_MIN_MTU) ||
+	    (len == 0)) {
+		return -EINVAL;
+	}
+
+	tx_len = BT_OBEX_PDU_LEN(mopl);
+	if (tx_len <= buf->len) {
+		return -ENOMEM;
+	}
+
+	*added_len = 0;
+
+	tx_len = MIN((tx_len - buf->len), net_buf_tailroom(buf));
+	if (tx_len <= BT_OBEX_HDR_LEN_OF_HEADER_BODY) {
+		return 0;
+	}
+
+	tx_len = BT_OBEX_DATA_LEN_OF_HEADER_BODY(tx_len);
+	if (tx_len >= len) {
+		*added_len = len;
+		err = bt_obex_add_header_end_body(buf, len, body);
+	} else {
+		*added_len = tx_len;
+		err = bt_obex_add_header_body(buf, tx_len, body);
+	}
+
+	return err;
+}
+
 /** @brief Add Header: identifies the OBEX application, used to tell if talking to a peer.
  *
  *  @param buf Buffer needs to be sent.
@@ -1671,6 +1726,25 @@ int bt_obex_get_header_srm_param(struct net_buf *buf, uint8_t *srm_param);
  */
 int bt_obex_make_uuid(union bt_obex_uuid *uuid, const uint8_t *data, uint16_t len);
 
+/** @brief Check if the string is valid
+ *
+ *  @param id HEADER ID.
+ *  @param len The length of string.
+ *  @param str The address of string.
+ *
+ *  @return true if the string is valid or false otherwise.
+ */
+bool bt_obex_string_is_valid(uint8_t id, uint16_t len, const uint8_t *str);
+
+/** @brief Check whether the buf has the specified header
+ *
+ *  @param buf Buffer needs to be sent.
+ *  @param id The id of the header.
+ *
+ *  @return true if the header is found or false otherwise.
+ */
+bool bt_obex_has_header(struct net_buf *buf, uint8_t id);
+
 #ifdef __cplusplus
 }
 #endif

include/zephyr/bluetooth/classic/sdp.h

@@ -477,6 +477,32 @@ struct bt_sdp_record {
 	{ BT_SDP_TYPE_SIZE(BT_SDP_UINT16), BT_SDP_ARRAY_16(_features) } \
 }
 
+/**
+ *  @brief SDP Supported Capabilities Attribute Declaration Macro.
+ *
+ *  Helper macro to declare supported capabilities of a profile/protocol.
+ *
+ *  @param _capabilities Capability mask as 8bit unsigned integer.
+ */
+#define BT_SDP_SUPPORTED_CAPABILITIES(_capabilities) \
+{ \
+	BT_SDP_ATTR_SUPPORTED_CAPABILITIES, \
+	{ BT_SDP_TYPE_SIZE(BT_SDP_UINT8), BT_SDP_ARRAY_8(_capabilities) } \
+}
+
+/**
+ *  @brief SDP Supported Functions Attribute Declaration Macro.
+ *
+ *  Helper macro to declare supported functions of a profile/protocol.
+ *
+ *  @param _functions Function mask as 32bit unsigned integer.
+ */
+#define BT_SDP_SUPPORTED_FUNCTIONS(_functions) \
+{ \
+	BT_SDP_ATTR_SUPPORTED_FUNCTIONS, \
+	{ BT_SDP_TYPE_SIZE(BT_SDP_UINT32), BT_SDP_ARRAY_32(_functions) } \
+}
+
 /**
  *  @brief SDP Service Declaration Macro.
  *
@@ -672,6 +698,7 @@ int bt_sdp_discover_cancel(struct bt_conn *conn,
 /** @brief Protocols to be asked about specific parameters */
 enum bt_sdp_proto {
 	BT_SDP_PROTO_RFCOMM = 0x0003,
+	BT_SDP_PROTO_OBEX   = 0x0008,
 	BT_SDP_PROTO_AVDTP  = 0x0019,
 	BT_SDP_PROTO_L2CAP  = 0x0100,
 };
@@ -737,6 +764,28 @@ int bt_sdp_get_profile_version(const struct net_buf *buf, uint16_t profile,
  */
 int bt_sdp_get_features(const struct net_buf *buf, uint16_t *features);
 
+/** @brief Get supported functions attribute value
+ *
+ *  Allows if exposed by remote retrieve supported functions attribute.
+ *
+ *  @param buf Buffer holding original raw record data from remote.
+ *  @param functions On success object to be populated with support functions.
+ *
+ *  @return 0 on success if feature found and valid, negative in case any error
+ */
+int bt_sdp_get_functions(const struct net_buf *buf, uint32_t *functions);
+
+/** @brief Get GOEP L2CAP PSM attribute value
+ *
+ *  Allows if exposed by remote retrieve supported GOEP L2CAP PSM attribute.
+ *
+ *  @param buf Buffer holding original raw record data from remote.
+ *  @param psm On success object to be populated with GOEP L2CAP PSM.
+ *
+ *  @return 0 on success if feature found and valid, negative in case any error
+ */
+int bt_sdp_get_goep_l2cap_psm(const struct net_buf *buf, uint16_t *psm);
+
 /** @brief Get Vendor ID
  *
  *  Helper API extracting remote Vendor ID. To get it proper

subsys/bluetooth/Kconfig.logging

@@ -409,6 +409,10 @@ module = BT_GOEP
 module-str = "Bluetooth Generic Object Exchange Profile (GOEP)"
 source "subsys/logging/Kconfig.template.log_config_inherit"
 
+module = BT_BIP
+module-str = "Bluetooth Basic Imaging Profile (BIP)"
+source "subsys/logging/Kconfig.template.log_config_inherit"
+
 endmenu # Bluetooth Classic
 endif # BT_CLASSIC
 

subsys/bluetooth/host/classic/CMakeLists.txt

@@ -10,6 +10,7 @@ zephyr_library_sources_ifdef(CONFIG_BT_AVDTP            avdtp.c)
 zephyr_library_sources_ifdef(CONFIG_BT_AVRCP            avrcp.c)
 zephyr_library_sources_ifdef(CONFIG_BT_AVCTP            avctp.c)
 zephyr_library_sources_ifdef(CONFIG_BT_RFCOMM           rfcomm.c)
+zephyr_library_sources_ifdef(CONFIG_BT_BIP              bip.c)
 
 zephyr_library_sources_ifdef(
   CONFIG_BT_CLASSIC

subsys/bluetooth/host/classic/Kconfig

@@ -610,6 +610,13 @@ config BT_OEBX_RSP_CODE_TO_STR
 
 endif # BT_GOEP
 
+config BT_BIP
+	bool "Bluetooth BIP Profile [EXPERIMENTAL]"
+	select BT_GOEP
+	select EXPERIMENTAL
+	help
+	  This option enables the BIP profile
+
 endif # BT_CLASSIC
 
 endmenu