bluetooth: host: Add Shorter Connection Intervals support #3513

weeTike · 2025-11-18T16:21:47Z

[nrf fromtree] bluetooth: host: Add Shorter Connection Intervals support

This commit adds support for the Shorter Connection Intervals feature to
the Bluetooth host.
[nrf fromtree] bluetooth: host: Change uses of interval to interval_us

Since Shorter Connection Intervals changes the unit that connection
intervals can be represented in. It is necessary to change how
they are stored and represented.

This commit deprecates interval in favour of interval_us.

Remove use of interval in internal bt_conn struct since it is no longer
needed.
[nrf fromtree] bluetooth: host: shell: Add SCI shell commands

This adds support for Shorter Connection Interval commands in the bt
shell.

Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#3513 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>

Manifest PR for nrfconnect/sdk-zephyr#3513 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#3513 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>

Manifest PR for nrfconnect/sdk-zephyr#3513 Manifest PR for memfault/memfault-firmware-sdk#97 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#3513 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>

Manifest PR for nrfconnect/sdk-zephyr#3513 Manifest PR for memfault/memfault-firmware-sdk#97 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#3513 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>

Manifest PR for nrfconnect/sdk-zephyr#3513 Manifest PR for memfault/memfault-firmware-sdk#97 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#3513 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>

Manifest PR for nrfconnect/sdk-zephyr#3513 Manifest PR for memfault/memfault-firmware-sdk#97 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#3513 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>

Manifest PR for nrfconnect/sdk-zephyr#3513 Manifest PR for memfault/memfault-firmware-sdk#97 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

weeTike · 2025-11-24T10:10:37Z

Had to pull in a lot of extra commits for the release notes to be conflict free. Many will be merged by #3523 and #3515.

Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#3513 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>

Manifest PR for nrfconnect/sdk-zephyr#3513 Manifest PR for https://github.com/memfault/memfault-firmware-sdk/releases/tag/1.31.0 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

…ster GATT callbacks New API bt_gatt_cb_unregister, use _SAFE iteration for callback list. Signed-off-by: Zhijie Zhong <zhongzhijie1@xiaomi.com> (cherry picked from commit c222dcf)

This commit deprecates: - the `CONFIG_BT_SIGNING` Kconfig option - `BT_GATT_CHRC_AUTH` property IOW, this commit deprecates the LE Security mode 2 support. Explanation: Erratum ES-26047 introduced in Bluetooth Core Specification v6.2 requires SingCounter to be persistently stored to prevent replay attacks. Currently, the Host doesn't store SignCounter, therefore the device is vulnerable to replay attacks after reboot. Additionally, the current implementation doesn't assume that SignCounter of a received message can be incremented by more than one and thus may not validate correct message. The Bluetooth Security and Privacy Best Practices Guide recommends to not using Data signing and recommends to use LE Security mode 1 levels 2, 3 or 4 instead. The Signed Write Without Response sub-procedure, which is the only user of Data signing, is optional (see Vol 3, Part G, Table 4.1). See also ES-18901. The aforementioned reasons make no sense to keep this feature. Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no> (cherry picked from commit b7b35b8)

…files Remove duplicated prj.conf file. prj_6, prj_7, prj_14 are identicall. Since prj_6.conf is unchanged, keeping it. prj_8, prj_9, prj_15 are identicall. Since prj_15.conf is unchanged, keeping it. Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no> (cherry picked from commit 66679c1)

…elated ICS This commit removes data signing related ICS. Removed ICS: - SM 6/1: Signing Algorithm Generation - SM 6/2: Signing Algorithm Resolving - GATT 3/13: Signed Write Without Response - GATT 9/10: Signed Write Command - GATT 7/3: LE Security mode 2 - GAP 25/2: LE Security mode 2 - GAP 35/2: LE Security mode 2 - GAP 25/5: Connection data signing procedure - GAP 35/5: Connection data signing procedure - GAP 25/6: Authenticate signed data procedure - GAP 35/6: Authenticate signed data procedure - GAP 27b/8: Connection Signature Resolving Key (CSRK) - GAP 37b/8: Connection Signature Resolving Key (CSRK) The following tests are not supported any longer: - GAP/SEC/CSIGN/BI-01-C - GAP/SEC/CSIGN/BI-02-C - GAP/SEC/CSIGN/BI-03-C - GAP/SEC/CSIGN/BI-04-C - GAP/SEC/CSIGN/BV-01-C - GAP/SEC/CSIGN/BV-02-C - GATT/CL/GAW/BV-02-C - SM/CEN/SIGN/BV-01-C Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no> (cherry picked from commit 116d4dd)

bt_conn_get_info API is used to retrieve connection-related information. However, bt_conn_get_info sends the HCI command BT_HCI_OP_READ_ENCRYPTION_KEY_SIZE to retrieve current key_size, causing excessive blocking time. Signed-off-by: Xiang Liu <liuxiang18@xiaomi.com> (cherry picked from commit 8e9fa6a)

Introduce dedicated helper functions for connection type checking: - bt_conn_is_br() for BR/EDR connections - bt_conn_is_le() for LE connections - bt_conn_is_iso() for ISO connections - bt_conn_is_sco() for SCO connections Replace direct conn->type comparisons with these new helper functions throughout the connection management code. This improves code readability, maintainability, and provides proper configuration checks for each connection type. Signed-off-by: Kai Cheng <chengkai@xiaomi.com> (cherry picked from commit 038523c)

This commit adds support for the Shorter Connection Intervals feature to the Bluetooth host. Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no> (cherry picked from commit e2cd247ec4852328b94e1c8c917ca9d33e0cf72d)

Since Shorter Connection Intervals changes the unit that connection intervals can be represented in. It is necessary to change how they are stored and represented. This commit deprecates interval in favour of interval_us. Remove use of interval in internal bt_conn struct since it is no longer needed. Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no> (cherry picked from commit c14dcaf1995ea9c70b4ce334e4c9765da09eb35d)

This adds support for Shorter Connection Interval commands in the bt shell. Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no> (cherry picked from commit 6bfa6fa9a825f2076ae9a070abb28e09556872ec)

…pace Update Fix a missing unref of a bt_conn reference, leading to a ref count mismatch, and causing the following warning to be printed: bt_conn: Found valid connection ... in disconnected state. Signed-off-by: Aleksandar Stanoev <aleksandar.stanoev@nordicsemi.no> (cherry picked from commit 1eea6adad2963a7c889281e7024cc0f01af7e842)

Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#3513 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>

Manifest PR for nrfconnect/sdk-zephyr#3513 Manifest PR for https://github.com/memfault/memfault-firmware-sdk/releases/tag/1.31.0 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

NordicBuilder mentioned this pull request Nov 18, 2025

manifest: sdk-zephyr: Sci host nrfconnect/sdk-nrf#25657

Closed

weeTike marked this pull request as draft November 18, 2025 16:22

weeTike force-pushed the sci_host_downstream branch from f11c7d6 to c30cdb5 Compare November 18, 2025 17:05

weeTike force-pushed the sci_host_downstream branch from c30cdb5 to 68107d8 Compare November 18, 2025 17:11

weeTike force-pushed the sci_host_downstream branch from 68107d8 to a37e8b0 Compare November 19, 2025 15:37

weeTike force-pushed the sci_host_downstream branch from a37e8b0 to cfbf9f2 Compare November 19, 2025 15:39

weeTike added a commit to weeTike/sdk-nrf that referenced this pull request Nov 19, 2025

manifest: Update sdk-zephyr revision

74f2cbb

Manifest PR for nrfconnect/sdk-zephyr#3513 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

NordicBuilder mentioned this pull request Nov 19, 2025

bluetooth: host: Interval is deprecated, use interval_us nrfconnect/sdk-nrf#25678

Open

weeTike added a commit to weeTike/sdk-nrf that referenced this pull request Nov 19, 2025

manifest: Update sdk-zephyr revision

32b0b0e

Manifest PR for nrfconnect/sdk-zephyr#3513 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

weeTike added a commit to weeTike/sdk-nrf that referenced this pull request Nov 20, 2025

manifest: Update sdk-zephyr revision

b13edd7

Manifest PR for nrfconnect/sdk-zephyr#3513 Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no>

weeTike force-pushed the sci_host_downstream branch from cfbf9f2 to 81f97c3 Compare November 20, 2025 09:47

weeTike force-pushed the sci_host_downstream branch from 81f97c3 to 6279845 Compare November 20, 2025 14:11

weeTike force-pushed the sci_host_downstream branch from 6279845 to c0a647a Compare November 20, 2025 15:42

weeTike marked this pull request as ready for review November 20, 2025 15:43

weeTike changed the title ~~Sci host~~ bluetooth: host: Add Shorter Connection Intervals support Nov 20, 2025

weeTike force-pushed the sci_host_downstream branch from c0a647a to 1088304 Compare November 20, 2025 16:25

weeTike added this to the ncs-3.2.0 milestone Nov 21, 2025

weeTike force-pushed the sci_host_downstream branch from 1088304 to a45a7c0 Compare November 21, 2025 13:01

weeTike force-pushed the sci_host_downstream branch from a45a7c0 to 1b5695a Compare November 21, 2025 13:06

weeTike force-pushed the sci_host_downstream branch from 1b5695a to 812279b Compare November 21, 2025 17:46

weeTike force-pushed the sci_host_downstream branch from 812279b to 9414316 Compare November 24, 2025 13:45

rlubos force-pushed the main branch from 64201a3 to 8116dbc Compare November 24, 2025 14:51

zhongzhijie1 and others added 10 commits November 24, 2025 14:53

[nrf fromtree] bluetooth: host: Add bt_gatt_cb_unregister() to unregi…

6d54560

…ster GATT callbacks New API bt_gatt_cb_unregister, use _SAFE iteration for callback list. Signed-off-by: Zhijie Zhong <zhongzhijie1@xiaomi.com> (cherry picked from commit c222dcf)

[nrf fromtree] bluetooth: host: shell: Add SCI shell commands

6c570a8

This adds support for Shorter Connection Interval commands in the bt shell. Signed-off-by: Timothy Keys <timothy.keys@nordicsemi.no> (cherry picked from commit 6bfa6fa9a825f2076ae9a070abb28e09556872ec)

weeTike force-pushed the sci_host_downstream branch from 9414316 to 394b00b Compare November 24, 2025 14:53

sean-madigan approved these changes Nov 24, 2025

View reviewed changes

HaavardRei approved these changes Nov 25, 2025

View reviewed changes

HaavardRei mentioned this pull request Nov 25, 2025

Bluetooth: Host: Cherry-picks #3531

Open

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

bluetooth: host: Add Shorter Connection Intervals support #3513

bluetooth: host: Add Shorter Connection Intervals support #3513

weeTike commented Nov 18, 2025 •

edited

Loading

Uh oh!

weeTike commented Nov 24, 2025

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

8 participants

bluetooth: host: Add Shorter Connection Intervals support #3513

Are you sure you want to change the base?

bluetooth: host: Add Shorter Connection Intervals support #3513

Conversation

weeTike commented Nov 18, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

weeTike commented Nov 24, 2025

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

8 participants

weeTike commented Nov 18, 2025 •

edited

Loading