From patchwork Sat Feb 6 23:05:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jorge Ramirez-Ortiz, Foundries" X-Patchwork-Id: 1437069 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=85.214.62.61; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=foundries.io header.i=@foundries.io header.a=rsa-sha256 header.s=google header.b=Q8Ox8GZW; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4DY7DZ5xZ4z9sVS for ; Sun, 7 Feb 2021 10:05:27 +1100 (AEDT) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id BF08E82653; Sun, 7 Feb 2021 00:05:17 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=foundries.io Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=foundries.io header.i=@foundries.io header.b="Q8Ox8GZW"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 163BA82483; Sun, 7 Feb 2021 00:05:14 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from mail-wr1-x42f.google.com (mail-wr1-x42f.google.com [IPv6:2a00:1450:4864:20::42f]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id EFAFB82483 for ; Sun, 7 Feb 2021 00:05:09 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=foundries.io Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=jorge@foundries.io Received: by mail-wr1-x42f.google.com with SMTP id l12so12592787wry.2 for ; Sat, 06 Feb 2021 15:05:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foundries.io; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=viyeRL40djdYpAmgmkL9mPGin9M3GrG0E6SG3J+b2A0=; b=Q8Ox8GZWhyPeb7B2qtNmfL4JFSkJriD/fEiwN6Vqo6/eli8oE4Gx5hkVRqQbX+nmm7 zX5wiV4Fxa83wP1W0V5UxqDfuYIFWjmfzDtUEoSsZHFINoNi7dLNRBwjHseAJl4ZUqND 8cjl/FpPsg8D/IXI+G3D7lmB4H9FIhOLHAkFsIH/3gA5Fo2M9uaSULWjB4TSKsWhLpeh Aw99IwtkYCP8/9apMgapW/ctBudjgP59s4m7jhT4hAhyKl+f+qqJJCaJS4X/1qljQTDj pcXpFEy6AiEj2WeTiRGoBvyp8xVoCAHw0eBWEe0LfEdsPKnCMTtxb2FISXu9LKWrC2+c i2EQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=viyeRL40djdYpAmgmkL9mPGin9M3GrG0E6SG3J+b2A0=; b=UXxJCc31H1M2YWPibXHUSiydenVCLNWzohHrMGHYxhD0fbQSmdfiauj6RqXYCMKinq ttM+Ig0Lw/rGui0uI80SCR/Ba1Wk9Vlk1p9cJFWRhnZ72RUA9fNJVfCLeHEbQjA72cks U4CaNfJIrqhK4deq/paYLArYG2uCt4XpHPuiIWAdeAO91ZgjyxA+9K8hvF1Xqhn1qGp6 mw2mvaFo+JGVq73SyderQ4iAvVMRtazf/jeabR/VOdGT2XNf7AoPGBVH9nLfvKyZ83sU +04x4/xwYkdwppzOwvUrSosOQRP9260OLHm92AgMgylA5zUUOXaCl0bE4zFmotLehBzY xfiQ== X-Gm-Message-State: AOAM532c6Y+sRaJuA2zNe5mVqTUbxuJgeVkmJ8FXR8mHwyQQo2pe2NzL vD20ATh/uqaSpVDfWZCCl9F9lA== X-Google-Smtp-Source: ABdhPJzOpO89lMbfM+MwfqIxVQwKttdijJfVZkG9STO8X35b/Fjtsozm9lmg3EDTKyOyPHL8hLQq7Q== X-Received: by 2002:a5d:4f84:: with SMTP id d4mr12045443wru.374.1612652709426; Sat, 06 Feb 2021 15:05:09 -0800 (PST) Received: from localhost.localdomain (182.red-79-146-86.dynamicip.rima-tde.net. [79.146.86.182]) by smtp.gmail.com with ESMTPSA id o17sm17951748wrm.52.2021.02.06.15.05.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 06 Feb 2021 15:05:08 -0800 (PST) From: Jorge Ramirez-Ortiz To: jorge@foundries.io, jens.wiklander@linaro.org, sjg@chromium.org Cc: igor.opaniuk@foundries.io, u-boot@lists.denx.de Subject: [PATCH] drivers: tee: sandbox: secure channel protocol control Date: Sun, 7 Feb 2021 00:05:02 +0100 Message-Id: <20210206230504.1958-2-jorge@foundries.io> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210206230504.1958-1-jorge@foundries.io> References: <20210206230504.1958-1-jorge@foundries.io> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean Adds support for SCP03 emulation. Signed-off-by: Jorge Ramirez-Ortiz --- drivers/tee/optee/Kconfig | 6 ++++ drivers/tee/sandbox.c | 59 +++++++++++++++++++++++++++++++++++++-- 2 files changed, 63 insertions(+), 2 deletions(-) diff --git a/drivers/tee/optee/Kconfig b/drivers/tee/optee/Kconfig index d489834df9..b7f704a5e6 100644 --- a/drivers/tee/optee/Kconfig +++ b/drivers/tee/optee/Kconfig @@ -22,6 +22,12 @@ config OPTEE_TA_AVB The TA can support the "avb" subcommands "read_rb", "write"rb" and "is_unlocked". +config OPTEE_TA_SCP03 + bool "Support SCP03 TA" + default y + help + Enables support for the SCP03 Trusted Application (TA) in OP-TEE. + endmenu endif diff --git a/drivers/tee/sandbox.c b/drivers/tee/sandbox.c index e1ba027fd6..5ad5ddf588 100644 --- a/drivers/tee/sandbox.c +++ b/drivers/tee/sandbox.c @@ -7,6 +7,7 @@ #include #include #include +#include /* * The sandbox tee driver tries to emulate a generic Trusted Exectution @@ -32,7 +33,7 @@ struct ta_entry { struct tee_param *params); }; -#ifdef CONFIG_OPTEE_TA_AVB +#if defined(CONFIG_OPTEE_TA_SCP03) || defined(CONFIG_OPTEE_TA_AVB) static u32 get_attr(uint n, uint num_params, struct tee_param *params) { if (n >= num_params) @@ -44,7 +45,7 @@ static u32 get_attr(uint n, uint num_params, struct tee_param *params) static u32 check_params(u8 p0, u8 p1, u8 p2, u8 p3, uint num_params, struct tee_param *params) { - u8 p[] = { p0, p1, p2, p3}; + u8 p[] = { p0, p1, p2, p3 }; uint n; for (n = 0; n < ARRAY_SIZE(p); n++) @@ -62,6 +63,54 @@ bad_params: return TEE_ERROR_BAD_PARAMETERS; } +#endif + +#ifdef CONFIG_OPTEE_TA_SCP03 +static u32 pta_scp03_open_session(struct udevice *dev, uint num_params, + struct tee_param *params) +{ + /* + * We don't expect additional parameters when opening a session to + * this TA. + */ + return check_params(TEE_PARAM_ATTR_TYPE_NONE, TEE_PARAM_ATTR_TYPE_NONE, + TEE_PARAM_ATTR_TYPE_NONE, TEE_PARAM_ATTR_TYPE_NONE, + num_params, params); +} + +static u32 pta_scp03_invoke_func(struct udevice *dev, u32 func, uint num_params, + struct tee_param *params) +{ + u32 res; + static bool enabled; + + switch (func) { + case PTA_CMD_ENABLE_SCP03: + res = check_params(TEE_PARAM_ATTR_TYPE_VALUE_INPUT, + TEE_PARAM_ATTR_TYPE_NONE, + TEE_PARAM_ATTR_TYPE_NONE, + TEE_PARAM_ATTR_TYPE_NONE, + num_params, params); + if (res) + return res; + + if (!enabled) { + printf("SCP03 enabled\n"); + enabled = true; + } else + printf("SCP03 already enabled, no action\n"); + + if (params[0].u.value.a) + printk("SCP03 keys rotated\n"); + + return TEE_SUCCESS; + default: + return TEE_ERROR_NOT_SUPPORTED; + } +} +#endif + +#ifdef CONFIG_OPTEE_TA_AVB static u32 ta_avb_open_session(struct udevice *dev, uint num_params, struct tee_param *params) @@ -223,6 +272,12 @@ static const struct ta_entry ta_entries[] = { .invoke_func = ta_avb_invoke_func, }, #endif +#ifdef CONFIG_OPTEE_TA_SCP03 + { .uuid = PTA_SCP03_UUID, + .open_session = pta_scp03_open_session, + .invoke_func = pta_scp03_invoke_func, + }, +#endif }; static void sandbox_tee_get_version(struct udevice *dev,