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[nrf fromtree] bluetooth: host: Allow for ECDH operations through sys… #2495

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Feb 14, 2025
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[nrf fromtree] bluetooth: host: Allow for ECDH operations through sys… #2495

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7 changes: 4 additions & 3 deletions subsys/bluetooth/host/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -1002,10 +1002,11 @@ config BT_ECC
select PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT
select PSA_WANT_ECC_SECP_R1_256
imply MBEDTLS_PSA_P256M_DRIVER_ENABLED if MBEDTLS_PSA_CRYPTO_C
select BT_LONG_WQ
imply BT_LONG_WQ
help
If this option is set, internal APIs will be available to perform ECDH operations
through the long work queue. operations needed e.g. by LE Secure Connections.
If this option is set, internal APIs will be available to perform ECDH operations through
the long work queue (or system work queue). The operations are used e.g. by LE Secure
Connections.

endif # BT_HCI_HOST

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12 changes: 10 additions & 2 deletions subsys/bluetooth/host/ecc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -279,7 +279,11 @@ int bt_pub_key_gen(struct bt_pub_key_cb *new_cb)

atomic_clear_bit(bt_dev.flags, BT_DEV_HAS_PUB_KEY);

bt_long_wq_submit(&pub_key_work);
if (IS_ENABLED(CONFIG_BT_LONG_WQ)) {
bt_long_wq_submit(&pub_key_work);
} else {
k_work_submit(&pub_key_work);
}

return 0;
}
Expand Down Expand Up @@ -338,7 +342,11 @@ int bt_dh_key_gen(const uint8_t remote_pk[BT_PUB_KEY_LEN], bt_dh_key_cb_t cb)
sys_memcpy_swap(&ecc.public_key_be[BT_PUB_KEY_COORD_LEN],
&remote_pk[BT_PUB_KEY_COORD_LEN], BT_PUB_KEY_COORD_LEN);

bt_long_wq_submit(&dh_key_work);
if (IS_ENABLED(CONFIG_BT_LONG_WQ)) {
bt_long_wq_submit(&dh_key_work);
} else {
k_work_submit(&dh_key_work);
}

return 0;
}
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