From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ramalingam C via dri-devel Subject: [PATCH v14 29/33] misc/mei/hdcp: Verify M_prime Date: Sat, 16 Feb 2019 23:07:16 +0530 Message-ID: <1550338640-17470-30-git-send-email-ramalingam.c@intel.com> References: <1550338640-17470-1-git-send-email-ramalingam.c@intel.com> Reply-To: Ramalingam C Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1550338640-17470-1-git-send-email-ramalingam.c@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com List-Id: dri-devel@lists.freedesktop.org UmVxdWVzdCB0byBNRSB0byB2ZXJpZnkgdGhlIE1fUHJpbWUgcmVjZWl2ZWQgZnJvbSB0aGUgSERD UCBzaW5rLgoKTUUgRlcgd2lsbCBjYWxjdWxhdGUgdGhlIE0gYW5kIGNvbXBhcmUgd2l0aCBNX3By aW1lIHJlY2VpdmVkCmFzIHBhcnQgb2YgUmVwZWF0ZXJBdXRoX1N0cmVhbV9SZWFkeSwgd2hpY2gg aXMgSERDUDIuMiBwcm90b2NvbCBtc2cuCgpPbiBzdWNjZXNzZnVsIGNvbXBsZXRpb24gb2YgdGhp cyBzdGFnZSwgZG93bnN0cmVhbSBwcm9wYWdhdGlvbiBvZgp0aGUgc3RyZWFtIG1hbmFnZW1lbnQg aW5mbyBpcyBjb21wbGV0ZWQuCgp2MjogUmViYXNlZC4KdjM6CiAgY2xkZXYgaXMgcGFzc2VkIGFz IGZpcnN0IHBhcmFtZXRlciBbVG9tYXNdCiAgUmVkdW5kYW50IGNvbW1lbnRzIGFuZCBjYXN0IGFy ZSByZW1vdmVkIFtUb21hc10KdjQ6CiAgJXpkIGZvciBzc2l6ZV90IFtBbGV4YW5kZXJdCiAgJXMv cmV0dXJuIC0xL3JldHVybiAtRUlPIFtBbGV4YW5kZXJdCiAgZW5kaWFubmVzcyBjb252ZXJzaW9u IGZ1bmMgaXMgbW92ZWQgdG8gZHJtX2hkY3AuaCBbVW1hXQp2NTogUmViYXNlZC4KdjY6CiAgQ29s bGVjdGVkIHRoZSBSYi1lZCBieS4KICBSZWJhc2luZy4Kdjc6CiAgQWRqdXN0IHRvIHRoZSBuZXcg bWVpIGludGVyZmFjZS4KICBGaXggZm9yIEtkb2MuCnY4OgogIEstRG9jIGFkZGl0aW9uLiBbVG9t YXNdCiAgZHJtX2hkY3AyX3UzMl90b19zZXFfbnVtKCkgaXMgdXNlZCBmb3IgdTMyIHRvIHNlcV9u dW0uCnY5OgogIHJlbmFtZWQgZnVuYyBhcyBtZWlfaGRjcF8qIFtUb21hc10KICBJbmxpbmUgZnVu Y3Rpb24gaXMgZGVmaW5lZCBmb3IgRERJIGluZGV4IFtUb21hc10KdjEwOgogIEstRG9jIGZpeC4g W1RvbWFzXQoKU2lnbmVkLW9mZi1ieTogUmFtYWxpbmdhbSBDIDxyYW1hbGluZ2FtLmNAaW50ZWwu Y29tPgpSZXZpZXdlZC1ieTogVW1hIFNoYW5rYXIgPHVtYS5zaGFua2FyQGludGVsLmNvbT4KQWNr ZWQtYnk6IFRvbWFzIFdpbmtsZXIgPHRvbWFzLndpbmtsZXJAaW50ZWwuY29tPgotLS0KIGRyaXZl cnMvbWlzYy9tZWkvaGRjcC9tZWlfaGRjcC5jIHwgNjcgKysrKysrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrLQogMSBmaWxlIGNoYW5nZWQsIDY2IGluc2VydGlvbnMoKyksIDEgZGVs ZXRpb24oLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL21pc2MvbWVpL2hkY3AvbWVpX2hkY3AuYyBi L2RyaXZlcnMvbWlzYy9tZWkvaGRjcC9tZWlfaGRjcC5jCmluZGV4IGMwNmE5ODA1YWM4NS4uNzIx Mzc2ZmM5YmYxIDEwMDY0NAotLS0gYS9kcml2ZXJzL21pc2MvbWVpL2hkY3AvbWVpX2hkY3AuYwor KysgYi9kcml2ZXJzL21pc2MvbWVpL2hkY3AvbWVpX2hkY3AuYwpAQCAtNTQwLDYgKzU0MCw3MSBA QCBtZWlfaGRjcF9yZXBlYXRlcl9jaGVja19mbG93X3ByZXBhcmVfYWNrKHN0cnVjdCBkZXZpY2Ug KmRldiwKIAlyZXR1cm4gMDsKIH0KIAorLyoqCisgKiBtZWlfaGRjcF92ZXJpZnlfbXByaW1lKCkg LSBWZXJpZnkgbXByaW1lLgorICogQGRldjogZGV2aWNlIGNvcnJlc3BvbmRpbmcgdG8gdGhlIG1l aV9jbF9kZXZpY2UKKyAqIEBkYXRhOiBJbnRlbCBIVyBzcGVjaWZpYyBoZGNwIGRhdGEKKyAqIEBz dHJlYW1fcmVhZHk6IFJlcGVhdGVyQXV0aF9TdHJlYW1fUmVhZHkgbXNnIGZvciBNRSBGVyB2ZXJp ZmljYXRpb24uCisgKgorICogUmV0dXJuOiAwIG9uIFN1Y2Nlc3MsIDwwIG9uIEZhaWx1cmUKKyAq Lworc3RhdGljIGludCBtZWlfaGRjcF92ZXJpZnlfbXByaW1lKHN0cnVjdCBkZXZpY2UgKmRldiwK KwkJCQkgIHN0cnVjdCBoZGNwX3BvcnRfZGF0YSAqZGF0YSwKKwkJCQkgIHN0cnVjdCBoZGNwMl9y ZXBfc3RyZWFtX3JlYWR5ICpzdHJlYW1fcmVhZHkpCit7CisJc3RydWN0IHdpcmVkX2NtZF9yZXBl YXRlcl9hdXRoX3N0cmVhbV9yZXFfaW4KKwkJCQkJdmVyaWZ5X21wcmltZV9pbiA9IHsgeyAwIH0g fTsKKwlzdHJ1Y3Qgd2lyZWRfY21kX3JlcGVhdGVyX2F1dGhfc3RyZWFtX3JlcV9vdXQKKwkJCQkJ dmVyaWZ5X21wcmltZV9vdXQgPSB7IHsgMCB9IH07CisJc3RydWN0IG1laV9jbF9kZXZpY2UgKmNs ZGV2OworCXNzaXplX3QgYnl0ZTsKKworCWlmICghZGV2IHx8ICFzdHJlYW1fcmVhZHkgfHwgIWRh dGEpCisJCXJldHVybiAtRUlOVkFMOworCisJY2xkZXYgPSB0b19tZWlfY2xfZGV2aWNlKGRldik7 CisKKwl2ZXJpZnlfbXByaW1lX2luLmhlYWRlci5hcGlfdmVyc2lvbiA9IEhEQ1BfQVBJX1ZFUlNJ T047CisJdmVyaWZ5X21wcmltZV9pbi5oZWFkZXIuY29tbWFuZF9pZCA9IFdJUkVEX1JFUEVBVEVS X0FVVEhfU1RSRUFNX1JFUTsKKwl2ZXJpZnlfbXByaW1lX2luLmhlYWRlci5zdGF0dXMgPSBNRV9I RENQX1NUQVRVU19TVUNDRVNTOworCXZlcmlmeV9tcHJpbWVfaW4uaGVhZGVyLmJ1ZmZlcl9sZW4g PQorCQkJV0lSRURfQ01EX0JVRl9MRU5fUkVQRUFURVJfQVVUSF9TVFJFQU1fUkVRX01JTl9JTjsK KworCXZlcmlmeV9tcHJpbWVfaW4ucG9ydC5pbnRlZ3JhdGVkX3BvcnRfdHlwZSA9IGRhdGEtPnBv cnRfdHlwZTsKKwl2ZXJpZnlfbXByaW1lX2luLnBvcnQucGh5c2ljYWxfcG9ydCA9IG1laV9nZXRf ZGRpX2luZGV4KGRhdGEtPnBvcnQpOworCisJbWVtY3B5KHZlcmlmeV9tcHJpbWVfaW4ubV9wcmlt ZSwgc3RyZWFtX3JlYWR5LT5tX3ByaW1lLAorCSAgICAgICBIRENQXzJfMl9NUFJJTUVfTEVOKTsK Kwlkcm1faGRjcDJfdTMyX3RvX3NlcV9udW0odmVyaWZ5X21wcmltZV9pbi5zZXFfbnVtX20sIGRh dGEtPnNlcV9udW1fbSk7CisJbWVtY3B5KHZlcmlmeV9tcHJpbWVfaW4uc3RyZWFtcywgZGF0YS0+ c3RyZWFtcywKKwkgICAgICAgKGRhdGEtPmsgKiBzaXplb2Yoc3RydWN0IGhkY3AyX3N0cmVhbWlk X3R5cGUpKSk7CisKKwl2ZXJpZnlfbXByaW1lX2luLmsgPSBfX3N3YWIxNihkYXRhLT5rKTsKKwor CWJ5dGUgPSBtZWlfY2xkZXZfc2VuZChjbGRldiwgKHU4ICopJnZlcmlmeV9tcHJpbWVfaW4sCisJ CQkgICAgICBzaXplb2YodmVyaWZ5X21wcmltZV9pbikpOworCWlmIChieXRlIDwgMCkgeworCQlk ZXZfZGJnKGRldiwgIm1laV9jbGRldl9zZW5kIGZhaWxlZC4gJXpkXG4iLCBieXRlKTsKKwkJcmV0 dXJuIGJ5dGU7CisJfQorCisJYnl0ZSA9IG1laV9jbGRldl9yZWN2KGNsZGV2LCAodTggKikmdmVy aWZ5X21wcmltZV9vdXQsCisJCQkgICAgICBzaXplb2YodmVyaWZ5X21wcmltZV9vdXQpKTsKKwlp ZiAoYnl0ZSA8IDApIHsKKwkJZGV2X2RiZyhkZXYsICJtZWlfY2xkZXZfcmVjdiBmYWlsZWQuICV6 ZFxuIiwgYnl0ZSk7CisJCXJldHVybiBieXRlOworCX0KKworCWlmICh2ZXJpZnlfbXByaW1lX291 dC5oZWFkZXIuc3RhdHVzICE9IE1FX0hEQ1BfU1RBVFVTX1NVQ0NFU1MpIHsKKwkJZGV2X2RiZyhk ZXYsICJNRSBjbWQgMHglMDhYIGZhaWxlZC4gc3RhdHVzOiAweCVYXG4iLAorCQkJV0lSRURfUkVQ RUFURVJfQVVUSF9TVFJFQU1fUkVRLAorCQkJdmVyaWZ5X21wcmltZV9vdXQuaGVhZGVyLnN0YXR1 cyk7CisJCXJldHVybiAtRUlPOworCX0KKworCXJldHVybiAwOworfQorCiBzdGF0aWMgX19hdHRy aWJ1dGVfXygodW51c2VkKSkKIHN0cnVjdCBpOTE1X2hkY3BfY29tcG9uZW50X29wcyBtZWlfaGRj cF9vcHMgPSB7CiAJLm93bmVyID0gVEhJU19NT0RVTEUsCkBAIC01NTMsNyArNjE4LDcgQEAgc3Ry dWN0IGk5MTVfaGRjcF9jb21wb25lbnRfb3BzIG1laV9oZGNwX29wcyA9IHsKIAkuZ2V0X3Nlc3Np b25fa2V5ID0gbWVpX2hkY3BfZ2V0X3Nlc3Npb25fa2V5LAogCS5yZXBlYXRlcl9jaGVja19mbG93 X3ByZXBhcmVfYWNrID0KIAkJCQltZWlfaGRjcF9yZXBlYXRlcl9jaGVja19mbG93X3ByZXBhcmVf YWNrLAotCS52ZXJpZnlfbXByaW1lID0gTlVMTCwKKwkudmVyaWZ5X21wcmltZSA9IG1laV9oZGNw X3ZlcmlmeV9tcHJpbWUsCiAJLmVuYWJsZV9oZGNwX2F1dGhlbnRpY2F0aW9uID0gTlVMTCwKIAku Y2xvc2VfaGRjcF9zZXNzaW9uID0gTlVMTCwKIH07Ci0tIAoyLjcuNAoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApk cmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Au b3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs