From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Marcel Holtmann To: BlueZ users In-Reply-To: <332f27270612210445n276dafbevf29f0d49c0c51d4f@mail.gmail.com> References: <332f27270612210445n276dafbevf29f0d49c0c51d4f@mail.gmail.com> Date: Thu, 21 Dec 2006 13:48:47 +0100 Message-Id: <1166705327.9307.2.camel@violet> Mime-Version: 1.0 Subject: Re: [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: text/plain; charset="us-ascii" Sender: bluez-users-bounces@lists.sourceforge.net Errors-To: bluez-users-bounces@lists.sourceforge.net Hi Stale, > 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.. all these functions deal with the link keys stored on the chip. The default operation of BlueZ is not to store these link keys on the Bluetooth chip itself. Have a look at the D-Bus API for BlueZ. The methods ListBondings() and RemoveBonding() give you what you actually need. Regards Marcel ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users