From patchwork Tue Feb 5 22:47:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jarkko Sakkinen X-Patchwork-Id: 10798591 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 017F61669 for ; Tue, 5 Feb 2019 22:48:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E386B2A9CE for ; Tue, 5 Feb 2019 22:48:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D6E152BE06; Tue, 5 Feb 2019 22:48:11 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0BB5E2A9CE for ; Tue, 5 Feb 2019 22:48:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730286AbfBEWsK (ORCPT ); Tue, 5 Feb 2019 17:48:10 -0500 Received: from mga04.intel.com ([192.55.52.120]:54074 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729902AbfBEWsK (ORCPT ); Tue, 5 Feb 2019 17:48:10 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Feb 2019 14:48:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,337,1544515200"; d="scan'208";a="113982160" Received: from ibanaga-mobl1.ger.corp.intel.com (HELO localhost) ([10.249.254.171]) by orsmga006.jf.intel.com with ESMTP; 05 Feb 2019 14:48:04 -0800 From: Jarkko Sakkinen To: linux-integrity@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, Peter Huewe , Jason Gunthorpe , Tomas Winkler , Tadeusz Struk , Stefan Berger , Nayna Jain , Jarkko Sakkinen Subject: [PATCH v11 05/16] tpm: declare struct tpm_header Date: Wed, 6 Feb 2019 00:47:12 +0200 Message-Id: <20190205224723.19671-6-jarkko.sakkinen@linux.intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190205224723.19671-1-jarkko.sakkinen@linux.intel.com> References: <20190205224723.19671-1-jarkko.sakkinen@linux.intel.com> MIME-Version: 1.0 Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: X-Virus-Scanned: ClamAV using ClamSMTP Declare struct tpm_header that replaces struct tpm_input_header and struct tpm_output_header. Signed-off-by: Jarkko Sakkinen Reviewed-by: Stefan Berger Tested-by: Stefan Berger Reviewed-by: Jerry Snitselaar Reviewed-by: James Bottomley --- drivers/char/tpm/tpm-interface.c | 21 ++++++++------------- drivers/char/tpm/tpm.h | 29 +++++++++++++---------------- drivers/char/tpm/tpm2-cmd.c | 4 ++-- drivers/char/tpm/tpm2-space.c | 8 ++++---- drivers/char/tpm/tpm_i2c_atmel.c | 5 ++--- drivers/char/tpm/tpm_vtpm_proxy.c | 8 ++++---- drivers/char/tpm/xen-tpmfront.c | 2 +- 7 files changed, 34 insertions(+), 43 deletions(-) diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index d594ea27810c..b5b6a7c3f995 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -62,12 +62,10 @@ unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal) } EXPORT_SYMBOL_GPL(tpm_calc_ordinal_duration); -static int tpm_validate_command(struct tpm_chip *chip, - struct tpm_space *space, - const u8 *cmd, - size_t len) +static int tpm_validate_command(struct tpm_chip *chip, struct tpm_space *space, + const void *cmd, size_t len) { - const struct tpm_input_header *header = (const void *)cmd; + const struct tpm_header *header = cmd; int i; u32 cc; u32 attrs; @@ -161,12 +159,10 @@ static int tpm_go_idle(struct tpm_chip *chip, unsigned int flags) return chip->ops->go_idle(chip); } -static ssize_t tpm_try_transmit(struct tpm_chip *chip, - struct tpm_space *space, - u8 *buf, size_t bufsiz, - unsigned int flags) +static ssize_t tpm_try_transmit(struct tpm_chip *chip, struct tpm_space *space, + void *buf, size_t bufsiz, unsigned int flags) { - struct tpm_output_header *header = (void *)buf; + struct tpm_header *header = buf; int rc; ssize_t len = 0; u32 count, ordinal; @@ -316,7 +312,7 @@ static ssize_t tpm_try_transmit(struct tpm_chip *chip, ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, u8 *buf, size_t bufsiz, unsigned int flags) { - struct tpm_output_header *header = (struct tpm_output_header *)buf; + struct tpm_header *header = (struct tpm_header *)buf; /* space for header and handles */ u8 save[TPM_HEADER_SIZE + 3*sizeof(u32)]; unsigned int delay_msec = TPM2_DURATION_SHORT; @@ -381,8 +377,7 @@ ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_space *space, struct tpm_buf *buf, size_t min_rsp_body_length, unsigned int flags, const char *desc) { - const struct tpm_output_header *header = - (struct tpm_output_header *)buf->data; + const struct tpm_header *header = (struct tpm_header *)buf->data; int err; ssize_t len; diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 49bca4d1e786..1454ef19d2f4 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -273,16 +273,13 @@ struct tpm_chip { #define to_tpm_chip(d) container_of(d, struct tpm_chip, dev) -struct tpm_input_header { - __be16 tag; - __be32 length; - __be32 ordinal; -} __packed; - -struct tpm_output_header { - __be16 tag; - __be32 length; - __be32 return_code; +struct tpm_header { + __be16 tag; + __be32 length; + union { + __be32 ordinal; + __be32 return_code; + }; } __packed; #define TPM_TAG_RQU_COMMAND 193 @@ -401,8 +398,8 @@ struct tpm_buf { static inline void tpm_buf_reset(struct tpm_buf *buf, u16 tag, u32 ordinal) { - struct tpm_input_header *head; - head = (struct tpm_input_header *)buf->data; + struct tpm_header *head = (struct tpm_header *)buf->data; + head->tag = cpu_to_be16(tag); head->length = cpu_to_be32(sizeof(*head)); head->ordinal = cpu_to_be32(ordinal); @@ -428,14 +425,14 @@ static inline void tpm_buf_destroy(struct tpm_buf *buf) static inline u32 tpm_buf_length(struct tpm_buf *buf) { - struct tpm_input_header *head = (struct tpm_input_header *) buf->data; + struct tpm_header *head = (struct tpm_header *)buf->data; return be32_to_cpu(head->length); } static inline u16 tpm_buf_tag(struct tpm_buf *buf) { - struct tpm_input_header *head = (struct tpm_input_header *) buf->data; + struct tpm_header *head = (struct tpm_header *)buf->data; return be16_to_cpu(head->tag); } @@ -444,7 +441,7 @@ static inline void tpm_buf_append(struct tpm_buf *buf, const unsigned char *new_data, unsigned int new_len) { - struct tpm_input_header *head = (struct tpm_input_header *) buf->data; + struct tpm_header *head = (struct tpm_header *)buf->data; u32 len = tpm_buf_length(buf); /* Return silently if overflow has already happened. */ @@ -582,7 +579,7 @@ void tpm2_del_space(struct tpm_chip *chip, struct tpm_space *space); int tpm2_prepare_space(struct tpm_chip *chip, struct tpm_space *space, u32 cc, u8 *cmd); int tpm2_commit_space(struct tpm_chip *chip, struct tpm_space *space, - u32 cc, u8 *buf, size_t *bufsiz); + u32 cc, void *buf, size_t *bufsiz); int tpm_bios_log_setup(struct tpm_chip *chip); void tpm_bios_log_teardown(struct tpm_chip *chip); diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c index 2bcf470c8e5d..ab03f8600f89 100644 --- a/drivers/char/tpm/tpm2-cmd.c +++ b/drivers/char/tpm/tpm2-cmd.c @@ -784,7 +784,7 @@ static int tpm2_do_selftest(struct tpm_chip *chip) */ int tpm2_probe(struct tpm_chip *chip) { - struct tpm_output_header *out; + struct tpm_header *out; struct tpm_buf buf; int rc; @@ -797,7 +797,7 @@ int tpm2_probe(struct tpm_chip *chip) rc = tpm_transmit_cmd(chip, NULL, &buf, 0, 0, NULL); /* We ignore TPM return codes on purpose. */ if (rc >= 0) { - out = (struct tpm_output_header *)buf.data; + out = (struct tpm_header *)buf.data; if (be16_to_cpu(out->tag) == TPM2_ST_NO_SESSIONS) chip->flags |= TPM_CHIP_FLAG_TPM2; } diff --git a/drivers/char/tpm/tpm2-space.c b/drivers/char/tpm/tpm2-space.c index 5ecc73988f7c..39cb3915771e 100644 --- a/drivers/char/tpm/tpm2-space.c +++ b/drivers/char/tpm/tpm2-space.c @@ -334,7 +334,7 @@ static int tpm2_map_response_header(struct tpm_chip *chip, u32 cc, u8 *rsp, size_t len) { struct tpm_space *space = &chip->work_space; - struct tpm_output_header *header = (void *)rsp; + struct tpm_header *header = (struct tpm_header *)rsp; u32 phandle; u32 phandle_type; u32 vhandle; @@ -394,7 +394,7 @@ static int tpm2_map_response_body(struct tpm_chip *chip, u32 cc, u8 *rsp, size_t len) { struct tpm_space *space = &chip->work_space; - struct tpm_output_header *header = (void *)rsp; + struct tpm_header *header = (struct tpm_header *)rsp; struct tpm2_cap_handles *data; u32 phandle; u32 phandle_type; @@ -490,9 +490,9 @@ static int tpm2_save_space(struct tpm_chip *chip) } int tpm2_commit_space(struct tpm_chip *chip, struct tpm_space *space, - u32 cc, u8 *buf, size_t *bufsiz) + u32 cc, void *buf, size_t *bufsiz) { - struct tpm_output_header *header = (void *)buf; + struct tpm_header *header = buf; int rc; if (!space) diff --git a/drivers/char/tpm/tpm_i2c_atmel.c b/drivers/char/tpm/tpm_i2c_atmel.c index 95ce2e9ccdc6..4720b2442ffe 100644 --- a/drivers/char/tpm/tpm_i2c_atmel.c +++ b/drivers/char/tpm/tpm_i2c_atmel.c @@ -46,7 +46,7 @@ struct priv_data { /* This is the amount we read on the first try. 25 was chosen to fit a * fair number of read responses in the buffer so a 2nd retry can be * avoided in small message cases. */ - u8 buffer[sizeof(struct tpm_output_header) + 25]; + u8 buffer[sizeof(struct tpm_header) + 25]; }; static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len) @@ -72,8 +72,7 @@ static int i2c_atmel_recv(struct tpm_chip *chip, u8 *buf, size_t count) { struct priv_data *priv = dev_get_drvdata(&chip->dev); struct i2c_client *client = to_i2c_client(chip->dev.parent); - struct tpm_output_header *hdr = - (struct tpm_output_header *)priv->buffer; + struct tpm_header *hdr = (struct tpm_header *)priv->buffer; u32 expected_len; int rc; diff --git a/drivers/char/tpm/tpm_vtpm_proxy.c b/drivers/char/tpm/tpm_vtpm_proxy.c index 5f95fbfb7f6b..28eb5ab15b99 100644 --- a/drivers/char/tpm/tpm_vtpm_proxy.c +++ b/drivers/char/tpm/tpm_vtpm_proxy.c @@ -303,9 +303,9 @@ static int vtpm_proxy_tpm_op_recv(struct tpm_chip *chip, u8 *buf, size_t count) static int vtpm_proxy_is_driver_command(struct tpm_chip *chip, u8 *buf, size_t count) { - struct tpm_input_header *hdr = (struct tpm_input_header *)buf; + struct tpm_header *hdr = (struct tpm_header *)buf; - if (count < sizeof(struct tpm_input_header)) + if (count < sizeof(struct tpm_header)) return 0; if (chip->flags & TPM_CHIP_FLAG_TPM2) { @@ -402,7 +402,7 @@ static int vtpm_proxy_request_locality(struct tpm_chip *chip, int locality) { struct tpm_buf buf; int rc; - const struct tpm_output_header *header; + const struct tpm_header *header; struct proxy_dev *proxy_dev = dev_get_drvdata(&chip->dev); if (chip->flags & TPM_CHIP_FLAG_TPM2) @@ -427,7 +427,7 @@ static int vtpm_proxy_request_locality(struct tpm_chip *chip, int locality) goto out; } - header = (const struct tpm_output_header *)buf.data; + header = (const struct tpm_header *)buf.data; rc = be32_to_cpu(header->return_code); if (rc) locality = -1; diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c index b150f87f38f5..1259e935fd58 100644 --- a/drivers/char/tpm/xen-tpmfront.c +++ b/drivers/char/tpm/xen-tpmfront.c @@ -163,7 +163,7 @@ static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count) wmb(); notify_remote_via_evtchn(priv->evtchn); - ordinal = be32_to_cpu(((struct tpm_input_header*)buf)->ordinal); + ordinal = be32_to_cpu(((struct tpm_header *)buf)->ordinal); duration = tpm_calc_ordinal_duration(chip, ordinal); if (wait_for_tpm_stat(chip, VTPM_STATUS_IDLE, duration,