0

我正处于在我的 Raspberry Pi 4 上进行一些蓝牙 Mesh 工作的早期阶段。

根据说明，我发现需要重新构建内核才能启用 Mesh 所需的 Crypto API。

我从

pi@pi-4:~ $ uname -a
Linux pi-4 5.10.63-v7l+ #1459 SMP Wed Oct 6 16:41:57 BST 2021 armv7l GNU/Linux
pi@pi-4:~ $ bluetoothd -v
5.55

并使用重建内核

git clone --depth=1 https://github.com/raspberrypi/linux
cd linux

KERNEL=kernel7l
make bcm2711_defconfig
vi .config # to customize the local name of the kernel build
make menuconfig

值得注意的是，我看到了关于设置哪些内核选项的不同文档，所以我选择了选项的超集。通过 vi 和 UI 的组合设置。结果编辑是

CONFIG_EXPERT=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_NET=y
CONFIG_BT=y
CONFIG_BT_RFCOMM=y
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=y
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=y
CONFIG_RFKILL=y
CONFIG_CRYPTO_USER=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
CONFIG_KEY_DH_OPERATIONS=y
CONFIG_CRYPTO_USER_API_AEAD=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_CCM=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_CMAC=y

我还编辑了 statup 命令行选项以关闭 SAP 插件以消除该启动错误。

KERNEL=kernel7l
make -j4 zImage modules dtbs
sudo make modules_install
sudo cp arch/arm/boot/dts/*.dtb /boot/
sudo cp arch/arm/boot/dts/overlays/*.dtb* /boot/overlays/
sudo cp arch/arm/boot/dts/overlays/README /boot/overlays/
sudo cp arch/arm/boot/zImage /boot/$KERNEL.img

pi@pi-4-x:~/ell-0.9/linux $ sudo reboot now
Connection to pi-4-x closed by remote host.
Connection to pi-4-x closed.
.
. reconnect
.

pi@pi-4:~ $ uname -a
Linux pi-4 5.10.90-v7l-With-BlueZ-Crypto+ #2 SMP Fri Jan 14 16:00:58 EST 2022 armv7l GNU/Linux

现在，当我检查状态时，我正在查看此错误。当使用发行版 (5.55) 附带的 BlueZ 和从源代码 (5.63) 重建时，此错误是相同的。

有任何想法吗？

设置隐私失败：拒绝 (0x0b)

pi@pi-4:~/linux $ sudo service bluetooth status
● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: active (running) since Tue 2022-01-18 11:32:44 EST; 11min ago
       Docs: man:bluetoothd(8)
   Main PID: 1726 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 3715)
        CPU: 59ms
     CGroup: /system.slice/bluetooth.service
             └─1726 /usr/libexec/bluetooth/bluetoothd --noplugin=sap

Jan 18 11:32:44 pi-4 systemd[1]: Starting Bluetooth service...
Jan 18 11:32:44 pi-4 bluetoothd[1726]: Bluetooth daemon 5.55
Jan 18 11:32:44 pi-4 systemd[1]: Started Bluetooth service.
Jan 18 11:32:44 pi-4 bluetoothd[1726]: Starting SDP server
Jan 18 11:32:44 pi-4 bluetoothd[1726]: Excluding (cli) sap
Jan 18 11:32:44 pi-4 bluetoothd[1726]: Bluetooth management interface 1.18 initialized
Jan 18 11:32:44 pi-4 bluetoothd[1726]: Failed to set privacy: Rejected (0x0b)
Jan 18 11:32:44 pi-4 bluetoothd[1726]: Endpoint registered: sender=:1.21 path=/MediaEndpoint/A2DPSink/sbc
Jan 18 11:32:44 pi-4 bluetoothd[1726]: Endpoint registered: sender=:1.21 path=/MediaEndpoint/A2DPSource/sbc
4

0 回答 0