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[98.232.221.87]) by smtp.gmail.com with ESMTPSA id l11-20020a170902d34b00b001c75627545csm5181817plk.135.2023.10.02.16.13.16 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Oct 2023 16:13:17 -0700 (PDT) From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH BlueZ 4/6] device: Add btd_device_get_ltk Date: Mon, 2 Oct 2023 16:13:08 -0700 Message-ID: <20231002231311.3104749-4-luiz.dentz@gmail.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231002231311.3104749-1-luiz.dentz@gmail.com> References: <20231002231311.3104749-1-luiz.dentz@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Luiz Augusto von Dentz This adds btd_device_get_ltk function which can be used by plugins to access the LTK key. --- src/device.c | 17 +++++++++++++++++ src/device.h | 2 ++ 2 files changed, 19 insertions(+) diff --git a/src/device.c b/src/device.c index 35ce1df0fe74..a734fff0dc73 100644 --- a/src/device.c +++ b/src/device.c @@ -1938,6 +1938,23 @@ void device_set_ltk(struct btd_device *device, const uint8_t val[16], queue_foreach(device->sirks, add_set, device); } +bool btd_device_get_ltk(struct btd_device *device, uint8_t key[16], + bool *central, uint8_t *enc_size) +{ + if (!device || !device->ltk || !key) + return false; + + memcpy(key, device->ltk->key, sizeof(device->ltk->key)); + + if (central) + *central = device->ltk->central; + + if (enc_size) + *enc_size = device->ltk->enc_size; + + return true; +} + static bool match_sirk(const void *data, const void *match_data) { const struct sirk_info *sirk = data; diff --git a/src/device.h b/src/device.h index 0a9e51533ca5..8bb38669d457 100644 --- a/src/device.h +++ b/src/device.h @@ -132,6 +132,8 @@ void device_request_disconnect(struct btd_device *device, DBusMessage *msg); bool device_is_disconnecting(struct btd_device *device); void device_set_ltk(struct btd_device *device, const uint8_t val[16], bool central, uint8_t enc_size); +bool btd_device_get_ltk(struct btd_device *device, uint8_t val[16], + bool *central, uint8_t *enc_size); bool btd_device_add_set(struct btd_device *device, bool encrypted, uint8_t sirk[16], uint8_t size, uint8_t rank); void device_store_svc_chng_ccc(struct btd_device *device, uint8_t bdaddr_type,