From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <332f27270612210445n276dafbevf29f0d49c0c51d4f@mail.gmail.com> Date: Thu, 21 Dec 2006 13:45:17 +0100 From: "Staale A. Kleppe" To: bluez-users@lists.sourceforge.net MIME-Version: 1.0 Subject: [Bluez-users] Delete, write and read link keys using functions in hci.c Reply-To: BlueZ users List-Id: BlueZ users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0801940715==" Sender: bluez-users-bounces@lists.sourceforge.net Errors-To: bluez-users-bounces@lists.sourceforge.net --===============0801940715== Content-Type: multipart/alternative; boundary="----=_Part_32052_2872036.1166705117753" ------=_Part_32052_2872036.1166705117753 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Good atfernoon (or morning depending on your whereabouts)! Working on my Master's I want to be able to delete, write and read the link keys associated with a paired device. I found the functions int hci_read_stored_link_key(int dd, bdaddr_t *bdaddr, uint8_t all, int to) int hci_write_stored_link_key(int dd, bdaddr_t *bdaddr, uint8_t *key, int to) int hci_delete_stored_link_key(int dd, bdaddr_t *bdaddr, uint8_t all, int to) in hci.c and tried to use the delete-function. It seems to work, as the function call returns 0, indicating that no problems occured. However, the link key still appears in /var/libs/bluetooth/BD_ADDR/linkkeys, and a following authentication is still successfull. Hcidump reports this: < HCI Command: Delete Stored Link Key (0x03|0x0012) plen 7 bdaddr 00:09:DD:60:02:45 all 0 > HCI Event: Command Complete (0x0e) plen 4 Delete Stored Link Key (0x03|0x0012) ncmd 1 status 0x11 deleted 2525 Error: Unsupported Feature or Parameter Value I guess it might be the value of parameter "all". I didn't know what it is, so I tried with 0 and 1 (apperently not correct). Anyone knows what this parameter of type uint8_t is for? I thought it might be like a "boolean" variable, instructing deletion of ALL the associated link keys. Am I far off? Another thing, about the hci_read_stored_link_key function. Is the key returned as an int-value or by some other means? I'm a bit confused about this matter.. Any reply will be valued greetly. Regards, Staale A. Kleppe ------=_Part_32052_2872036.1166705117753 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Good atfernoon (or morning depending on your whereabouts)!

Working on my Master's I want to be able to delete, write and read the link keys associated with a paired device. I found the functions

int hci_read_stored_link_key(int dd, bdaddr_t *bdaddr, uint8_t all, int to)
int hci_write_stored_link_key(int dd, bdaddr_t *bdaddr, uint8_t *key, int to)
int hci_delete_stored_link_key(int dd, bdaddr_t *bdaddr, uint8_t all, int to)

in hci.c and tried to use the delete-function. It seems to work, as the function call returns 0, indicating that no problems occured. However, the link key still appears in /var/libs/bluetooth/BD_ADDR/linkkeys, and a following authentication is still successfull.
Hcidump reports this:
< HCI Command: Delete Stored Link Key (0x03|0x0012) plen 7
    bdaddr 00:09:DD:60:02:45 all 0
> HCI Event: Command Complete (0x0e) plen 4
    Delete Stored Link Key (0x03|0x0012) ncmd 1
    status 0x11 deleted 2525
    Error: Unsupported Feature or Parameter Value

I guess it might be the value of parameter "all". I didn't know what it is, so I tried with 0 and 1 (apperently not correct). Anyone knows what this parameter of type uint8_t is for? I thought it might be like a "boolean" variable, instructing deletion of ALL the associated link keys. Am I far off?

Another thing, about the hci_read_stored_link_key function. Is the key returned as an int-value or by some other means? I'm a bit confused about this matter..

Any reply will be valued greetly.

Regards,
Staale A. Kleppe


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