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Wed, 27 May 2020 18:04:57 +0000 From: Johannes Thumshirn To: "dsterba@suse.cz" , Johannes Thumshirn CC: "linux-fsdevel@vger.kernel.org" , "linux-btrfs@vger.kernel.org" , Eric Biggers , Richard Weinberger , Johannes Thumshirn Subject: Re: [PATCH v3 2/3] btrfs: add authentication support Thread-Topic: [PATCH v3 2/3] btrfs: add authentication support Thread-Index: AQHWKdGCuxq5LET6vEqLmo6XtFxQPg== Date: Wed, 27 May 2020 18:04:57 +0000 Message-ID: References: <20200514092415.5389-1-jth@kernel.org> <20200514092415.5389-3-jth@kernel.org> <20200527132428.GE18421@twin.jikos.cz> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: suse.cz; dkim=none (message not signed) header.d=none;suse.cz; dmarc=none action=none header.from=wdc.com; x-originating-ip: [129.253.240.72] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 53faeda6-aa09-4642-fdbb-08d80268776d x-ms-traffictypediagnostic: SN4PR0401MB3568: x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:8882; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-Network-Message-Id: 53faeda6-aa09-4642-fdbb-08d80268776d X-MS-Exchange-CrossTenant-originalarrivaltime: 27 May 2020 18:04:57.5717 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: TaO4TDrjP2Dpc3Qslekc44QVWSO9C+6iOvSKi/xUQZNaF9RRclwt4B3//QjpnCsSgfMA1iiueAko/YjcKkcmqlAVMz8Oo6yiPVj9YTQpqII= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN4PR0401MB3568 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On 27/05/2020 15:25, David Sterba wrote:=0A= > The key for all userspace commands needs to be specified the same way as= =0A= > for kernel, ie. "--auth-key btrfs:foo" and use the appropriate ioctls to= =0A= > read the key bytes.=0A= =0A= Up to now I haven't been able to add a key to the kernel's keyring which = =0A= can be read back to user-space.=0A= =0A= How about passing in a key file, like it is done in UBIFS? Should be doable= =0A= both with libsodium and libgcrypt.=0A=