From patchwork Wed Apr 3 11:05:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Howard Chung X-Patchwork-Id: 13615925 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EB87043AB4 for ; Wed, 3 Apr 2024 11:06:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712142365; cv=none; b=N+Fu0ojC2t33IB+Kq0kfoWGvgzB+TtnocyP6Pgcl2YEtwYNnEnN9Z4Mbs/RUmSKtdt/hdwfv4kqN/cBiOdESVA0PHbPjvhJTvQn8jg4AuLbSO9AU7VG1AmpjUJmNe00ylOzih++1wl72B0Wxy5kpB/hJyda1m5P30SRyC3TOP+Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712142365; c=relaxed/simple; bh=9H6A7GDkKM8hFUi+f7hTIhCwvva5D66AQrVJEk8giMQ=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=I5Y+gcEHRC1XfVeQmvuUzccZNUEDK4gc51/amxj/iFGkdbI0bgRCB8WRYhA+Ep52rMxItD6s/dZj26XPE5dMeFxj6ZHxBag/dmdeiuswRoxPexkhSYOS0QxOibWB2+MmbayfEy9usikL91FpqlmNqZzh7mv1TeHZ0imSG5mlsoQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--howardchung.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=toKxbwHp; arc=none smtp.client-ip=209.85.219.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--howardchung.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="toKxbwHp" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-dc743cc50a6so7236831276.2 for ; Wed, 03 Apr 2024 04:06:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1712142363; x=1712747163; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=d+rphQ+8P30AHpH1Di6SAIf6r013utQBq8KphCA64vg=; b=toKxbwHpY2UAIigL3TMQCoPU98XTIy3X8jsej6xsrAYn7u7wgGldlk/ZDzO0xGyiHf uYGgoaTtV4oIdGsA70dvNfuXqp6kBToK9hCTofpSArPhzKBz9lMZ3nb0H6Y5rjbg54Cc bbBIWcPnja12D2VcdHVcZocRZqTVhc9PyxYz/G8/1MBrkHtFnTryt/ZDP8n++k4UpRdY cbr3iMmmhvFNmdrbjFUZvPFisZqYTAvMnPcV5z3kHtO9X5C1q88UUEMsn8z1ZqrY3esp AdWz2jzna3Q64bXyS4cwr58UjUod5w04ChsuiRVzZNpdq8pAir+FCeXs3uKwD9621THA 1u+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712142363; x=1712747163; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=d+rphQ+8P30AHpH1Di6SAIf6r013utQBq8KphCA64vg=; b=vtWpbNHmmUhAnRQfogZHi6XZxoHqBLgTS/vZU8C1T0PuUzH30UHYcAH1GWWobT90uB rS7BUToke9av20YXJnj1kI+OE3Ze2L7a2uBRbwtB4qv/ZQtDy0HRidOY4pmzx2XYydJk SwxLVD8QdYBg6AYFq/DrQJ+bwAdeFNl7FTgY/5LztoYp3sAjgkNgw3h/FXcvafd5fvvg yeI2uVPfmUqAXtyYhTFOqL1c/HKawqmbsBVfJPEcXCEX5Fkx0cvDBUeS6YAjK/lXJOO/ 4oJSkdz9qIj+OQ/nxWD8z8mIbye5TOYayzCLF+yWkPjGM3OaV3HKugRPRRZzB7Mm+Kjy FDXQ== X-Gm-Message-State: AOJu0YwtapjqNm0Ft0e7ZR3c0DCIg+qUDOHSIuXLA7baHuZXZFXh6Bxg tS4PwV7YysNPDJ4xVQgDY4GcvZKpGwXIsr/NEHXWynsRitf5P3YVWDcDUCVk+gOP74RcIXa/Aq+ 1dQIhQWU8oQVYyjMqcCtHKnQO4eqhYTEg0tGgavpKv0+uepCXMuM9/XJQHKCqyospeUxBqyRAe5 oV46194saoj8zbDZTPBAmBHBBuhgDSPjJIMWva7ou1G94ELGO1HtTtL8+ZjW1tX10XUonMCz4= X-Google-Smtp-Source: AGHT+IHeWYzZMEBrIuQnaT48yw3SGBsntwulUxTSpD9Nnnf2nhbx3Wse3jJ/1EoTY04RcRb5/SfSU9dT4yOC7/1bwg== X-Received: from howardchung-p920.tpe.corp.google.com ([2401:fa00:1:17:a99c:36f2:1a05:fa42]) (user=howardchung job=sendgmr) by 2002:a05:6902:1006:b0:dcc:94b7:a7a3 with SMTP id w6-20020a056902100600b00dcc94b7a7a3mr1039156ybt.12.1712142360512; Wed, 03 Apr 2024 04:06:00 -0700 (PDT) Date: Wed, 3 Apr 2024 19:05:11 +0800 In-Reply-To: <20240403110549.75516-1-howardchung@google.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240403110549.75516-1-howardchung@google.com> X-Mailer: git-send-email 2.44.0.478.gd926399ef9-goog Message-ID: <20240403190511.Bluez.1.I0e799d0a6494565e232db4c86a8979cf898b1840@changeid> Subject: [Bluez PATCH 1/2] shared/gatt: Rename some gatt insert functions to append From: Howard Chung To: linux-bluetooth , Luiz Augusto von Dentz , Johan Hedberg , Marcel Holtmann Cc: CrosBT Upstreaming , Howard Chung , Archie Pusaka Many of the Gatt insert functions are actually append. They append an attribute to the end of the service attributes list. This simply rename these functions. Reviewed-by: Archie Pusaka --- monitor/att.c | 4 ++-- src/gatt-database.c | 4 ++-- src/settings.c | 4 ++-- src/shared/gatt-client.c | 8 ++++---- src/shared/gatt-db.c | 38 +++++++++++++++++++------------------- src/shared/gatt-db.h | 12 ++++++------ unit/test-gatt.c | 4 ++-- 7 files changed, 37 insertions(+), 37 deletions(-) diff --git a/monitor/att.c b/monitor/att.c index 3e5d7f12d..ddeb54d9e 100644 --- a/monitor/att.c +++ b/monitor/att.c @@ -515,7 +515,7 @@ static struct gatt_db_attribute *insert_chrc(const struct l2cap_frame *frame, if (!db) return NULL; - return gatt_db_insert_characteristic(db, handle, uuid, 0, prop, NULL, + return gatt_db_append_characteristic(db, handle, uuid, 0, prop, NULL, NULL, NULL); } @@ -4153,7 +4153,7 @@ static struct gatt_db_attribute *insert_desc(const struct l2cap_frame *frame, if (!db) return NULL; - return gatt_db_insert_descriptor(db, handle, uuid, 0, NULL, NULL, NULL); + return gatt_db_append_descriptor(db, handle, uuid, 0, NULL, NULL, NULL); } static void att_find_info_rsp_16(const struct l2cap_frame *frame) diff --git a/src/gatt-database.c b/src/gatt-database.c index 7221ffc87..4c3554211 100644 --- a/src/gatt-database.c +++ b/src/gatt-database.c @@ -3178,7 +3178,7 @@ static bool database_add_desc(struct external_service *service, return false; } - desc->attrib = gatt_db_service_insert_descriptor(service->attrib, + desc->attrib = gatt_db_service_append_descriptor(service->attrib, handle, &uuid, desc->perm, desc_read_cb, @@ -3351,7 +3351,7 @@ static bool database_add_chrc(struct external_service *service, return false; } - chrc->attrib = gatt_db_service_insert_characteristic(service->attrib, + chrc->attrib = gatt_db_service_append_characteristic(service->attrib, handle, &uuid, chrc->perm, chrc->props, chrc_read_cb, chrc_write_cb, chrc); diff --git a/src/settings.c b/src/settings.c index 85534f2c7..025c75b62 100644 --- a/src/settings.c +++ b/src/settings.c @@ -78,7 +78,7 @@ static int load_desc(struct gatt_db *db, char *handle, char *value, if (!bt_uuid_cmp(&uuid, &ext_uuid) && !val) return -EIO; - att = gatt_db_service_insert_descriptor(service, handle_int, &uuid, + att = gatt_db_service_append_descriptor(service, handle_int, &uuid, 0, NULL, NULL, NULL); if (!att || gatt_db_attribute_get_handle(att) != handle_int) return -EIO; @@ -125,7 +125,7 @@ static int load_chrc(struct gatt_db *db, char *handle, char *value, handle_int, value_handle, properties, val_len ? val_str : "", uuid_str); - att = gatt_db_service_insert_characteristic(service, value_handle, + att = gatt_db_service_append_characteristic(service, value_handle, &uuid, 0, properties, NULL, NULL, NULL); if (!att || gatt_db_attribute_get_handle(att) != value_handle) diff --git a/src/shared/gatt-client.c b/src/shared/gatt-client.c index 6340bcd85..eddbd1778 100644 --- a/src/shared/gatt-client.c +++ b/src/shared/gatt-client.c @@ -638,7 +638,7 @@ static void discover_incl_cb(bool success, uint8_t att_ecode, continue; } - attr = gatt_db_insert_included(client->db, handle, attr); + attr = gatt_db_append_included(client->db, handle, attr); if (!attr) { DBG(client, "Unable to add include attribute at 0x%04x", @@ -734,7 +734,7 @@ static bool discover_descs(struct discovery_op *op, bool *discovering) op->cur_svc = svc; } - attr = gatt_db_insert_characteristic(client->db, + attr = gatt_db_append_characteristic(client->db, chrc_data->value_handle, &chrc_data->uuid, 0, chrc_data->properties, @@ -788,7 +788,7 @@ static bool discover_descs(struct discovery_op *op, bool *discovering) */ bt_uuid16_create(&ccc_uuid, GATT_CLIENT_CHARAC_CFG_UUID); - attr = gatt_db_insert_descriptor(client->db, desc_start, + attr = gatt_db_append_descriptor(client->db, desc_start, &ccc_uuid, 0, NULL, NULL, NULL); if (attr) { @@ -952,7 +952,7 @@ static void discover_descs_cb(bool success, uint8_t att_ecode, DBG(client, "handle: 0x%04x, uuid: %s", handle, uuid_str); - attr = gatt_db_insert_descriptor(client->db, handle, + attr = gatt_db_append_descriptor(client->db, handle, &uuid, 0, NULL, NULL, NULL); if (!attr) { diff --git a/src/shared/gatt-db.c b/src/shared/gatt-db.c index 9559583d1..39bba9b54 100644 --- a/src/shared/gatt-db.c +++ b/src/shared/gatt-db.c @@ -845,7 +845,7 @@ static uint16_t get_handle_at_index(struct gatt_db_service *service, } static struct gatt_db_attribute * -service_insert_characteristic(struct gatt_db_service *service, +service_append_characteristic(struct gatt_db_service *service, uint16_t handle, const bt_uuid_t *uuid, uint32_t permissions, @@ -912,7 +912,7 @@ service_insert_characteristic(struct gatt_db_service *service, } struct gatt_db_attribute * -gatt_db_insert_characteristic(struct gatt_db *db, +gatt_db_append_characteristic(struct gatt_db *db, uint16_t handle, const bt_uuid_t *uuid, uint32_t permissions, @@ -927,14 +927,14 @@ gatt_db_insert_characteristic(struct gatt_db *db, if (!attrib) return NULL; - return service_insert_characteristic(attrib->service, handle, uuid, + return service_append_characteristic(attrib->service, handle, uuid, permissions, properties, read_func, write_func, user_data); } struct gatt_db_attribute * -gatt_db_service_insert_characteristic(struct gatt_db_attribute *attrib, +gatt_db_service_append_characteristic(struct gatt_db_attribute *attrib, uint16_t handle, const bt_uuid_t *uuid, uint32_t permissions, @@ -946,7 +946,7 @@ gatt_db_service_insert_characteristic(struct gatt_db_attribute *attrib, if (!attrib) return NULL; - return service_insert_characteristic(attrib->service, handle, uuid, + return service_append_characteristic(attrib->service, handle, uuid, permissions, properties, read_func, write_func, user_data); @@ -964,14 +964,14 @@ gatt_db_service_add_characteristic(struct gatt_db_attribute *attrib, if (!attrib) return NULL; - return service_insert_characteristic(attrib->service, 0, uuid, + return service_append_characteristic(attrib->service, 0, uuid, permissions, properties, read_func, write_func, user_data); } static struct gatt_db_attribute * -service_insert_descriptor(struct gatt_db_service *service, +service_append_descriptor(struct gatt_db_service *service, uint16_t handle, const bt_uuid_t *uuid, uint32_t permissions, @@ -1003,7 +1003,7 @@ service_insert_descriptor(struct gatt_db_service *service, } struct gatt_db_attribute * -gatt_db_insert_descriptor(struct gatt_db *db, +gatt_db_append_descriptor(struct gatt_db *db, uint16_t handle, const bt_uuid_t *uuid, uint32_t permissions, @@ -1017,13 +1017,13 @@ gatt_db_insert_descriptor(struct gatt_db *db, if (!attrib) return NULL; - return service_insert_descriptor(attrib->service, handle, uuid, + return service_append_descriptor(attrib->service, handle, uuid, permissions, read_func, write_func, user_data); } struct gatt_db_attribute * -gatt_db_service_insert_descriptor(struct gatt_db_attribute *attrib, +gatt_db_service_append_descriptor(struct gatt_db_attribute *attrib, uint16_t handle, const bt_uuid_t *uuid, uint32_t permissions, @@ -1034,7 +1034,7 @@ gatt_db_service_insert_descriptor(struct gatt_db_attribute *attrib, if (!attrib) return NULL; - return service_insert_descriptor(attrib->service, handle, uuid, + return service_append_descriptor(attrib->service, handle, uuid, permissions, read_func, write_func, user_data); } @@ -1050,7 +1050,7 @@ gatt_db_service_add_descriptor(struct gatt_db_attribute *attrib, if (!attrib) return NULL; - return service_insert_descriptor(attrib->service, 0, uuid, + return service_append_descriptor(attrib->service, 0, uuid, permissions, read_func, write_func, user_data); } @@ -1088,7 +1088,7 @@ gatt_db_service_add_ccc(struct gatt_db_attribute *attrib, uint32_t permissions) if (!value || value->notify_func) return NULL; - ccc = service_insert_descriptor(attrib->service, 0, &ccc_uuid, + ccc = service_append_descriptor(attrib->service, 0, &ccc_uuid, permissions, db->ccc->read_func, db->ccc->write_func, @@ -1121,7 +1121,7 @@ void gatt_db_ccc_register(struct gatt_db *db, gatt_db_read_t read_func, } static struct gatt_db_attribute * -service_insert_included(struct gatt_db_service *service, uint16_t handle, +service_append_included(struct gatt_db_service *service, uint16_t handle, struct gatt_db_attribute *include) { struct gatt_db_service *included; @@ -1186,22 +1186,22 @@ gatt_db_service_add_included(struct gatt_db_attribute *attrib, if (!attrib || !include) return NULL; - return service_insert_included(attrib->service, 0, include); + return service_append_included(attrib->service, 0, include); } struct gatt_db_attribute * -gatt_db_service_insert_included(struct gatt_db_attribute *attrib, +gatt_db_service_append_included(struct gatt_db_attribute *attrib, uint16_t handle, struct gatt_db_attribute *include) { if (!attrib || !handle || !include) return NULL; - return service_insert_included(attrib->service, handle, include); + return service_append_included(attrib->service, handle, include); } struct gatt_db_attribute * -gatt_db_insert_included(struct gatt_db *db, uint16_t handle, +gatt_db_append_included(struct gatt_db *db, uint16_t handle, struct gatt_db_attribute *include) { struct gatt_db_attribute *attrib; @@ -1210,7 +1210,7 @@ gatt_db_insert_included(struct gatt_db *db, uint16_t handle, if (!attrib) return NULL; - return service_insert_included(attrib->service, handle, include); + return service_append_included(attrib->service, handle, include); } bool gatt_db_service_set_active(struct gatt_db_attribute *attrib, bool active) diff --git a/src/shared/gatt-db.h b/src/shared/gatt-db.h index fb939e40d..ec0eccdfc 100644 --- a/src/shared/gatt-db.h +++ b/src/shared/gatt-db.h @@ -61,7 +61,7 @@ gatt_db_service_add_characteristic(struct gatt_db_attribute *attrib, gatt_db_write_t write_func, void *user_data); struct gatt_db_attribute * -gatt_db_service_insert_characteristic(struct gatt_db_attribute *attrib, +gatt_db_service_append_characteristic(struct gatt_db_attribute *attrib, uint16_t handle, const bt_uuid_t *uuid, uint32_t permissions, @@ -71,7 +71,7 @@ gatt_db_service_insert_characteristic(struct gatt_db_attribute *attrib, void *user_data); struct gatt_db_attribute * -gatt_db_insert_characteristic(struct gatt_db *db, +gatt_db_append_characteristic(struct gatt_db *db, uint16_t handle, const bt_uuid_t *uuid, uint32_t permissions, @@ -81,7 +81,7 @@ gatt_db_insert_characteristic(struct gatt_db *db, void *user_data); struct gatt_db_attribute * -gatt_db_insert_descriptor(struct gatt_db *db, +gatt_db_append_descriptor(struct gatt_db *db, uint16_t handle, const bt_uuid_t *uuid, uint32_t permissions, @@ -98,7 +98,7 @@ gatt_db_service_add_descriptor(struct gatt_db_attribute *attrib, void *user_data); struct gatt_db_attribute * -gatt_db_service_insert_descriptor(struct gatt_db_attribute *attrib, +gatt_db_service_append_descriptor(struct gatt_db_attribute *attrib, uint16_t handle, const bt_uuid_t *uuid, uint32_t permissions, @@ -110,14 +110,14 @@ struct gatt_db_attribute * gatt_db_service_add_ccc(struct gatt_db_attribute *attrib, uint32_t permissions); struct gatt_db_attribute * -gatt_db_insert_included(struct gatt_db *db, uint16_t handle, +gatt_db_append_included(struct gatt_db *db, uint16_t handle, struct gatt_db_attribute *include); struct gatt_db_attribute * gatt_db_service_add_included(struct gatt_db_attribute *attrib, struct gatt_db_attribute *include); struct gatt_db_attribute * -gatt_db_service_insert_included(struct gatt_db_attribute *attrib, +gatt_db_service_append_included(struct gatt_db_attribute *attrib, uint16_t handle, struct gatt_db_attribute *include); diff --git a/unit/test-gatt.c b/unit/test-gatt.c index 5e06d4ed4..20b25cf8c 100644 --- a/unit/test-gatt.c +++ b/unit/test-gatt.c @@ -1236,7 +1236,7 @@ add_char_with_value(struct gatt_db_attribute *service_att, uint16_t handle, struct gatt_db_attribute *attrib; if (handle) - attrib = gatt_db_service_insert_characteristic(service_att, + attrib = gatt_db_service_append_characteristic(service_att, handle, uuid, att_permissions, char_properties, @@ -1265,7 +1265,7 @@ add_desc_with_value(struct gatt_db_attribute *att, uint16_t handle, struct gatt_db_attribute *desc_att; if (handle) - desc_att = gatt_db_service_insert_descriptor(att, handle, uuid, + desc_att = gatt_db_service_append_descriptor(att, handle, uuid, att_perms, NULL, NULL, NULL); else From patchwork Wed Apr 3 11:05:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Howard Chung X-Patchwork-Id: 13615926 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EE63C135A5F for ; 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Wed, 03 Apr 2024 04:06:04 -0700 (PDT) Date: Wed, 3 Apr 2024 19:05:12 +0800 In-Reply-To: <20240403110549.75516-1-howardchung@google.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240403110549.75516-1-howardchung@google.com> X-Mailer: git-send-email 2.44.0.478.gd926399ef9-goog Message-ID: <20240403110549.75516-2-howardchung@google.com> Subject: [Bluez PATCH 2/2] shared/gatt: Add descriptor insert function From: Howard Chung To: linux-bluetooth , Luiz Augusto von Dentz , Johan Hedberg , Marcel Holtmann Cc: CrosBT Upstreaming , Howard Chung , Archie Pusaka service->attributes has an assumption that it should look like: |char_uuid|char_1|desc_1_1|desc_1_2|char_uuid|char_2|desc_2_1|char_uuid|... where desc_x_y means a descriptor of char_x. In monitor, an attribute is inserted as soon as it is found. It is not guranteed that all the descriptors of a characteristic would be found before another characteristic is found. This adds a function to insert the descriptor with the given handle to an appropriate place in its service attribute list and make monitor to use this function when a descripter is found. Reviewed-by: Archie Pusaka --- monitor/att.c | 2 +- src/shared/gatt-db.c | 66 ++++++++++++++++++++++++++++++++++++++++++++ src/shared/gatt-db.h | 9 ++++++ 3 files changed, 76 insertions(+), 1 deletion(-) diff --git a/monitor/att.c b/monitor/att.c index ddeb54d9e..503099745 100644 --- a/monitor/att.c +++ b/monitor/att.c @@ -4153,7 +4153,7 @@ static struct gatt_db_attribute *insert_desc(const struct l2cap_frame *frame, if (!db) return NULL; - return gatt_db_append_descriptor(db, handle, uuid, 0, NULL, NULL, NULL); + return gatt_db_insert_descriptor(db, handle, uuid, 0, NULL, NULL, NULL); } static void att_find_info_rsp_16(const struct l2cap_frame *frame) diff --git a/src/shared/gatt-db.c b/src/shared/gatt-db.c index 39bba9b54..f08c5afaa 100644 --- a/src/shared/gatt-db.c +++ b/src/shared/gatt-db.c @@ -1002,6 +1002,72 @@ service_append_descriptor(struct gatt_db_service *service, return service->attributes[i]; } +struct gatt_db_attribute * +gatt_db_insert_descriptor(struct gatt_db *db, + uint16_t handle, + const bt_uuid_t *uuid, + uint32_t permissions, + gatt_db_read_t read_func, + gatt_db_write_t write_func, + void *user_data) +{ + struct gatt_db_attribute *attrib, *iter_attr, *char_attr = NULL; + struct gatt_db_service *service; + int i, j, num_index, char_index; + + attrib = gatt_db_get_service(db, handle); + if (!attrib) + return NULL; + + service = attrib->service; + num_index = get_attribute_index(service, 0); + if (!num_index) + return NULL; + + // Find the characteristic the descriptor belongs to. + for (i = 0; i < num_index; i++) { + iter_attr = service->attributes[i]; + if (bt_uuid_cmp(&characteristic_uuid, &iter_attr->uuid)) + continue; + + if (iter_attr->handle > handle) + continue; + + // Find the characteristic with the largest handle among those + // with handles less than the descriptor's handle. + if (!char_attr || iter_attr->handle > char_attr->handle) { + char_attr = iter_attr; + char_index = i; + } + } + + // There is no characteristic contain this descriptor. Something went + // wrong + if (!char_attr) + return NULL; + + // Find the end of this characteristic + for (i = char_index + 1; i < num_index; i++) { + iter_attr = service->attributes[i]; + + if (!bt_uuid_cmp(&characteristic_uuid, &iter_attr->uuid) || + !bt_uuid_cmp(&included_service_uuid, &iter_attr->uuid)) + break; + } + + // Move all of the attributes after the end of this characteristic to + // its next index. + for (j = num_index; j > i; j--) + service->attributes[j] = service->attributes[j - 1]; + + service->attributes[i] = new_attribute(service, handle, uuid, NULL, 0); + + set_attribute_data(service->attributes[i], read_func, write_func, + permissions, user_data); + + return service->attributes[i]; +} + struct gatt_db_attribute * gatt_db_append_descriptor(struct gatt_db *db, uint16_t handle, diff --git a/src/shared/gatt-db.h b/src/shared/gatt-db.h index ec0eccdfc..4c4e88d87 100644 --- a/src/shared/gatt-db.h +++ b/src/shared/gatt-db.h @@ -80,6 +80,15 @@ gatt_db_append_characteristic(struct gatt_db *db, gatt_db_write_t write_func, void *user_data); +struct gatt_db_attribute * +gatt_db_insert_descriptor(struct gatt_db *db, + uint16_t handle, + const bt_uuid_t *uuid, + uint32_t permissions, + gatt_db_read_t read_func, + gatt_db_write_t write_func, + void *user_data); + struct gatt_db_attribute * gatt_db_append_descriptor(struct gatt_db *db, uint16_t handle,