From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- net/bluetooth/selftest.c | 306 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 306 insertions(+) create mode 100644 net/bluetooth/selftest.c (limited to 'net/bluetooth/selftest.c') diff --git a/net/bluetooth/selftest.c b/net/bluetooth/selftest.c new file mode 100644 index 000000000..ae5b44bb9 --- /dev/null +++ b/net/bluetooth/selftest.c @@ -0,0 +1,306 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + BlueZ - Bluetooth protocol stack for Linux + + Copyright (C) 2014 Intel Corporation + + 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. +*/ + +#include + +#include +#include + +#include "ecdh_helper.h" +#include "smp.h" +#include "selftest.h" + +#if IS_ENABLED(CONFIG_BT_SELFTEST_ECDH) + +static const u8 priv_a_1[32] __initconst = { + 0xbd, 0x1a, 0x3c, 0xcd, 0xa6, 0xb8, 0x99, 0x58, + 0x99, 0xb7, 0x40, 0xeb, 0x7b, 0x60, 0xff, 0x4a, + 0x50, 0x3f, 0x10, 0xd2, 0xe3, 0xb3, 0xc9, 0x74, + 0x38, 0x5f, 0xc5, 0xa3, 0xd4, 0xf6, 0x49, 0x3f, +}; +static const u8 priv_b_1[32] __initconst = { + 0xfd, 0xc5, 0x7f, 0xf4, 0x49, 0xdd, 0x4f, 0x6b, + 0xfb, 0x7c, 0x9d, 0xf1, 0xc2, 0x9a, 0xcb, 0x59, + 0x2a, 0xe7, 0xd4, 0xee, 0xfb, 0xfc, 0x0a, 0x90, + 0x9a, 0xbb, 0xf6, 0x32, 0x3d, 0x8b, 0x18, 0x55, +}; +static const u8 pub_a_1[64] __initconst = { + 0xe6, 0x9d, 0x35, 0x0e, 0x48, 0x01, 0x03, 0xcc, + 0xdb, 0xfd, 0xf4, 0xac, 0x11, 0x91, 0xf4, 0xef, + 0xb9, 0xa5, 0xf9, 0xe9, 0xa7, 0x83, 0x2c, 0x5e, + 0x2c, 0xbe, 0x97, 0xf2, 0xd2, 0x03, 0xb0, 0x20, + + 0x8b, 0xd2, 0x89, 0x15, 0xd0, 0x8e, 0x1c, 0x74, + 0x24, 0x30, 0xed, 0x8f, 0xc2, 0x45, 0x63, 0x76, + 0x5c, 0x15, 0x52, 0x5a, 0xbf, 0x9a, 0x32, 0x63, + 0x6d, 0xeb, 0x2a, 0x65, 0x49, 0x9c, 0x80, 0xdc, +}; +static const u8 pub_b_1[64] __initconst = { + 0x90, 0xa1, 0xaa, 0x2f, 0xb2, 0x77, 0x90, 0x55, + 0x9f, 0xa6, 0x15, 0x86, 0xfd, 0x8a, 0xb5, 0x47, + 0x00, 0x4c, 0x9e, 0xf1, 0x84, 0x22, 0x59, 0x09, + 0x96, 0x1d, 0xaf, 0x1f, 0xf0, 0xf0, 0xa1, 0x1e, + + 0x4a, 0x21, 0xb1, 0x15, 0xf9, 0xaf, 0x89, 0x5f, + 0x76, 0x36, 0x8e, 0xe2, 0x30, 0x11, 0x2d, 0x47, + 0x60, 0x51, 0xb8, 0x9a, 0x3a, 0x70, 0x56, 0x73, + 0x37, 0xad, 0x9d, 0x42, 0x3e, 0xf3, 0x55, 0x4c, +}; +static const u8 dhkey_1[32] __initconst = { + 0x98, 0xa6, 0xbf, 0x73, 0xf3, 0x34, 0x8d, 0x86, + 0xf1, 0x66, 0xf8, 0xb4, 0x13, 0x6b, 0x79, 0x99, + 0x9b, 0x7d, 0x39, 0x0a, 0xa6, 0x10, 0x10, 0x34, + 0x05, 0xad, 0xc8, 0x57, 0xa3, 0x34, 0x02, 0xec, +}; + +static const u8 priv_a_2[32] __initconst = { + 0x63, 0x76, 0x45, 0xd0, 0xf7, 0x73, 0xac, 0xb7, + 0xff, 0xdd, 0x03, 0x72, 0xb9, 0x72, 0x85, 0xb4, + 0x41, 0xb6, 0x5d, 0x0c, 0x5d, 0x54, 0x84, 0x60, + 0x1a, 0xa3, 0x9a, 0x3c, 0x69, 0x16, 0xa5, 0x06, +}; +static const u8 priv_b_2[32] __initconst = { + 0xba, 0x30, 0x55, 0x50, 0x19, 0xa2, 0xca, 0xa3, + 0xa5, 0x29, 0x08, 0xc6, 0xb5, 0x03, 0x88, 0x7e, + 0x03, 0x2b, 0x50, 0x73, 0xd4, 0x2e, 0x50, 0x97, + 0x64, 0xcd, 0x72, 0x0d, 0x67, 0xa0, 0x9a, 0x52, +}; +static const u8 pub_a_2[64] __initconst = { + 0xdd, 0x78, 0x5c, 0x74, 0x03, 0x9b, 0x7e, 0x98, + 0xcb, 0x94, 0x87, 0x4a, 0xad, 0xfa, 0xf8, 0xd5, + 0x43, 0x3e, 0x5c, 0xaf, 0xea, 0xb5, 0x4c, 0xf4, + 0x9e, 0x80, 0x79, 0x57, 0x7b, 0xa4, 0x31, 0x2c, + + 0x4f, 0x5d, 0x71, 0x43, 0x77, 0x43, 0xf8, 0xea, + 0xd4, 0x3e, 0xbd, 0x17, 0x91, 0x10, 0x21, 0xd0, + 0x1f, 0x87, 0x43, 0x8e, 0x40, 0xe2, 0x52, 0xcd, + 0xbe, 0xdf, 0x98, 0x38, 0x18, 0x12, 0x95, 0x91, +}; +static const u8 pub_b_2[64] __initconst = { + 0xcc, 0x00, 0x65, 0xe1, 0xf5, 0x6c, 0x0d, 0xcf, + 0xec, 0x96, 0x47, 0x20, 0x66, 0xc9, 0xdb, 0x84, + 0x81, 0x75, 0xa8, 0x4d, 0xc0, 0xdf, 0xc7, 0x9d, + 0x1b, 0x3f, 0x3d, 0xf2, 0x3f, 0xe4, 0x65, 0xf4, + + 0x79, 0xb2, 0xec, 0xd8, 0xca, 0x55, 0xa1, 0xa8, + 0x43, 0x4d, 0x6b, 0xca, 0x10, 0xb0, 0xc2, 0x01, + 0xc2, 0x33, 0x4e, 0x16, 0x24, 0xc4, 0xef, 0xee, + 0x99, 0xd8, 0xbb, 0xbc, 0x48, 0xd0, 0x01, 0x02, +}; +static const u8 dhkey_2[32] __initconst = { + 0x69, 0xeb, 0x21, 0x32, 0xf2, 0xc6, 0x05, 0x41, + 0x60, 0x19, 0xcd, 0x5e, 0x94, 0xe1, 0xe6, 0x5f, + 0x33, 0x07, 0xe3, 0x38, 0x4b, 0x68, 0xe5, 0x62, + 0x3f, 0x88, 0x6d, 0x2f, 0x3a, 0x84, 0x85, 0xab, +}; + +static const u8 priv_a_3[32] __initconst = { + 0xbd, 0x1a, 0x3c, 0xcd, 0xa6, 0xb8, 0x99, 0x58, + 0x99, 0xb7, 0x40, 0xeb, 0x7b, 0x60, 0xff, 0x4a, + 0x50, 0x3f, 0x10, 0xd2, 0xe3, 0xb3, 0xc9, 0x74, + 0x38, 0x5f, 0xc5, 0xa3, 0xd4, 0xf6, 0x49, 0x3f, +}; +static const u8 pub_a_3[64] __initconst = { + 0xe6, 0x9d, 0x35, 0x0e, 0x48, 0x01, 0x03, 0xcc, + 0xdb, 0xfd, 0xf4, 0xac, 0x11, 0x91, 0xf4, 0xef, + 0xb9, 0xa5, 0xf9, 0xe9, 0xa7, 0x83, 0x2c, 0x5e, + 0x2c, 0xbe, 0x97, 0xf2, 0xd2, 0x03, 0xb0, 0x20, + + 0x8b, 0xd2, 0x89, 0x15, 0xd0, 0x8e, 0x1c, 0x74, + 0x24, 0x30, 0xed, 0x8f, 0xc2, 0x45, 0x63, 0x76, + 0x5c, 0x15, 0x52, 0x5a, 0xbf, 0x9a, 0x32, 0x63, + 0x6d, 0xeb, 0x2a, 0x65, 0x49, 0x9c, 0x80, 0xdc, +}; +static const u8 dhkey_3[32] __initconst = { + 0x2d, 0xab, 0x00, 0x48, 0xcb, 0xb3, 0x7b, 0xda, + 0x55, 0x7b, 0x8b, 0x72, 0xa8, 0x57, 0x87, 0xc3, + 0x87, 0x27, 0x99, 0x32, 0xfc, 0x79, 0x5f, 0xae, + 0x7c, 0x1c, 0xf9, 0x49, 0xe6, 0xd7, 0xaa, 0x70, +}; + +static int __init test_ecdh_sample(struct crypto_kpp *tfm, const u8 priv_a[32], + const u8 priv_b[32], const u8 pub_a[64], + const u8 pub_b[64], const u8 dhkey[32]) +{ + u8 *tmp, *dhkey_a, *dhkey_b; + int ret; + + tmp = kmalloc(64, GFP_KERNEL); + if (!tmp) + return -EINVAL; + + dhkey_a = &tmp[0]; + dhkey_b = &tmp[32]; + + ret = set_ecdh_privkey(tfm, priv_a); + if (ret) + goto out; + + ret = compute_ecdh_secret(tfm, pub_b, dhkey_a); + if (ret) + goto out; + + if (memcmp(dhkey_a, dhkey, 32)) { + ret = -EINVAL; + goto out; + } + + ret = set_ecdh_privkey(tfm, priv_b); + if (ret) + goto out; + + ret = compute_ecdh_secret(tfm, pub_a, dhkey_b); + if (ret) + goto out; + + if (memcmp(dhkey_b, dhkey, 32)) + ret = -EINVAL; + /* fall through*/ +out: + kfree(tmp); + return ret; +} + +static char test_ecdh_buffer[32]; + +static ssize_t test_ecdh_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + return simple_read_from_buffer(user_buf, count, ppos, test_ecdh_buffer, + strlen(test_ecdh_buffer)); +} + +static const struct file_operations test_ecdh_fops = { + .open = simple_open, + .read = test_ecdh_read, + .llseek = default_llseek, +}; + +static int __init test_ecdh(void) +{ + struct crypto_kpp *tfm; + ktime_t calltime, delta, rettime; + unsigned long long duration = 0; + int err; + + calltime = ktime_get(); + + tfm = crypto_alloc_kpp("ecdh-nist-p256", 0, 0); + if (IS_ERR(tfm)) { + BT_ERR("Unable to create ECDH crypto context"); + err = PTR_ERR(tfm); + goto done; + } + + err = test_ecdh_sample(tfm, priv_a_1, priv_b_1, pub_a_1, pub_b_1, + dhkey_1); + if (err) { + BT_ERR("ECDH sample 1 failed"); + goto done; + } + + err = test_ecdh_sample(tfm, priv_a_2, priv_b_2, pub_a_2, pub_b_2, + dhkey_2); + if (err) { + BT_ERR("ECDH sample 2 failed"); + goto done; + } + + err = test_ecdh_sample(tfm, priv_a_3, priv_a_3, pub_a_3, pub_a_3, + dhkey_3); + if (err) { + BT_ERR("ECDH sample 3 failed"); + goto done; + } + + crypto_free_kpp(tfm); + + rettime = ktime_get(); + delta = ktime_sub(rettime, calltime); + duration = (unsigned long long) ktime_to_ns(delta) >> 10; + + BT_INFO("ECDH test passed in %llu usecs", duration); + +done: + if (!err) + snprintf(test_ecdh_buffer, sizeof(test_ecdh_buffer), + "PASS (%llu usecs)\n", duration); + else + snprintf(test_ecdh_buffer, sizeof(test_ecdh_buffer), "FAIL\n"); + + debugfs_create_file("selftest_ecdh", 0444, bt_debugfs, NULL, + &test_ecdh_fops); + + return err; +} + +#else + +static inline int test_ecdh(void) +{ + return 0; +} + +#endif + +static int __init run_selftest(void) +{ + int err; + + BT_INFO("Starting self testing"); + + err = test_ecdh(); + if (err) + goto done; + + err = bt_selftest_smp(); + +done: + BT_INFO("Finished self testing"); + + return err; +} + +#if IS_MODULE(CONFIG_BT) + +/* This is run when CONFIG_BT_SELFTEST=y and CONFIG_BT=m and is just a + * wrapper to allow running this at module init. + * + * If CONFIG_BT_SELFTEST=n, then this code is not compiled at all. + */ +int __init bt_selftest(void) +{ + return run_selftest(); +} + +#else + +/* This is run when CONFIG_BT_SELFTEST=y and CONFIG_BT=y and is run + * via late_initcall() as last item in the initialization sequence. + * + * If CONFIG_BT_SELFTEST=n, then this code is not compiled at all. + */ +static int __init bt_selftest_init(void) +{ + return run_selftest(); +} +late_initcall(bt_selftest_init); + +#endif -- cgit v1.3.1