1 files changed, 0 insertions, 476 deletions
diff --git a/drivers/char/tpm/tpm1_eventlog.c b/drivers/char/tpm/tpm1_eventlog.c
deleted file mode 100644
index add798bd69d0f..0000000000000
--- a/drivers/char/tpm/tpm1_eventlog.c
+++ /dev/null
@@ -1,476 +0,0 @@
-/*
- * Copyright (C) 2005, 2012 IBM Corporation
- *
- * Authors:
- *	Kent Yoder <key@linux.vnet.ibm.com>
- *	Seiji Munetoh <munetoh@jp.ibm.com>
- *	Stefan Berger <stefanb@us.ibm.com>
- *	Reiner Sailer <sailer@watson.ibm.com>
- *	Kylene Hall <kjhall@us.ibm.com>
- *	Nayna Jain <nayna@linux.vnet.ibm.com>
- *
- * Maintained by: <tpmdd-devel@lists.sourceforge.net>
- *
- * Access to the event log created by a system's firmware / BIOS
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/seq_file.h>
-#include <linux/efi.h>
-#include <linux/fs.h>
-#include <linux/security.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/tpm_eventlog.h>
-
-#include "tpm.h"
-
-
-static const char* tcpa_event_type_strings[] = {
-	"PREBOOT",
-	"POST CODE",
-	"",
-	"NO ACTION",
-	"SEPARATOR",
-	"ACTION",
-	"EVENT TAG",
-	"S-CRTM Contents",
-	"S-CRTM Version",
-	"CPU Microcode",
-	"Platform Config Flags",
-	"Table of Devices",
-	"Compact Hash",
-	"IPL",
-	"IPL Partition Data",
-	"Non-Host Code",
-	"Non-Host Config",
-	"Non-Host Info"
-};
-
-static const char* tcpa_pc_event_id_strings[] = {
-	"",
-	"SMBIOS",
-	"BIS Certificate",
-	"POST BIOS ",
-	"ESCD ",
-	"CMOS",
-	"NVRAM",
-	"Option ROM",
-	"Option ROM config",
-	"",
-	"Option ROM microcode ",
-	"S-CRTM Version",
-	"S-CRTM Contents ",
-	"POST Contents ",
-	"Table of Devices",
-};
-
-/* returns pointer to start of pos. entry of tcg log */
-static void *tpm_bios_measurements_start(struct seq_file *m, loff_t *pos)
-{
-	loff_t i;
-	struct tpm_chip *chip = m->private;
-	struct tpm_bios_log *log = &chip->log;
-	void *addr = log->bios_event_log;
-	void *limit = log->bios_event_log_end;
-	struct tcpa_event *event;
-	u32 converted_event_size;
-	u32 converted_event_type;
-
-
-	/* read over *pos measurements */
-	for (i = 0; i < *pos; i++) {
-		event = addr;
-
-		converted_event_size =
-		    do_endian_conversion(event->event_size);
-		converted_event_type =
-		    do_endian_conversion(event->event_type);
-
-		if ((addr + sizeof(struct tcpa_event)) < limit) {
-			if ((converted_event_type == 0) &&
-			    (converted_event_size == 0))
-				return NULL;
-			addr += (sizeof(struct tcpa_event) +
-				 converted_event_size);
-		}
-	}
-
-	/* now check if current entry is valid */
-	if ((addr + sizeof(struct tcpa_event)) >= limit)
-		return NULL;
-
-	event = addr;
-
-	converted_event_size = do_endian_conversion(event->event_size);
-	converted_event_type = do_endian_conversion(event->event_type);
-
-	if (((converted_event_type == 0) && (converted_event_size == 0))
-	    || ((addr + sizeof(struct tcpa_event) + converted_event_size)
-		>= limit))
-		return NULL;
-
-	return addr;
-}
-
-static void *tpm_bios_measurements_next(struct seq_file *m, void *v,
-					loff_t *pos)
-{
-	struct tcpa_event *event = v;
-	struct tpm_chip *chip = m->private;
-	struct tpm_bios_log *log = &chip->log;
-	void *limit = log->bios_event_log_end;
-	u32 converted_event_size;
-	u32 converted_event_type;
-
-	converted_event_size = do_endian_conversion(event->event_size);
-
-	v += sizeof(struct tcpa_event) + converted_event_size;
-
-	/* now check if current entry is valid */
-	if ((v + sizeof(struct tcpa_event)) >= limit)
-		return NULL;
-
-	event = v;
-
-	converted_event_size = do_endian_conversion(event->event_size);
-	converted_event_type = do_endian_conversion(event->event_type);
-
-	if (((converted_event_type == 0) && (converted_event_size == 0)) ||
-	    ((v + sizeof(struct tcpa_event) + converted_event_size) >= limit))
-		return NULL;
-
-	(*pos)++;
-	return v;
-}
-
-static void tpm_bios_measurements_stop(struct seq_file *m, void *v)
-{
-}
-
-static int get_event_name(char *dest, struct tcpa_event *event,
-			unsigned char * event_entry)
-{
-	const char *name = "";
-	/* 41 so there is room for 40 data and 1 nul */
-	char data[41] = "";
-	int i, n_len = 0, d_len = 0;
-	struct tcpa_pc_event *pc_event;
-
-	switch (do_endian_conversion(event->event_type)) {
-	case PREBOOT:
-	case POST_CODE:
-	case UNUSED:
-	case NO_ACTION:
-	case SCRTM_CONTENTS:
-	case SCRTM_VERSION:
-	case CPU_MICROCODE:
-	case PLATFORM_CONFIG_FLAGS:
-	case TABLE_OF_DEVICES:
-	case COMPACT_HASH:
-	case IPL:
-	case IPL_PARTITION_DATA:
-	case NONHOST_CODE:
-	case NONHOST_CONFIG:
-	case NONHOST_INFO:
-		name = tcpa_event_type_strings[do_endian_conversion
-						(event->event_type)];
-		n_len = strlen(name);
-		break;
-	case SEPARATOR:
-	case ACTION:
-		if (MAX_TEXT_EVENT >
-		    do_endian_conversion(event->event_size)) {
-			name = event_entry;
-			n_len = do_endian_conversion(event->event_size);
-		}
-		break;
-	case EVENT_TAG:
-		pc_event = (struct tcpa_pc_event *)event_entry;
-
-		/* ToDo Row data -> Base64 */
-
-		switch (do_endian_conversion(pc_event->event_id)) {
-		case SMBIOS:
-		case BIS_CERT:
-		case CMOS:
-		case NVRAM:
-		case OPTION_ROM_EXEC:
-		case OPTION_ROM_CONFIG:
-		case S_CRTM_VERSION:
-			name = tcpa_pc_event_id_strings[do_endian_conversion
-							(pc_event->event_id)];
-			n_len = strlen(name);
-			break;
-		/* hash data */
-		case POST_BIOS_ROM:
-		case ESCD:
-		case OPTION_ROM_MICROCODE:
-		case S_CRTM_CONTENTS:
-		case POST_CONTENTS:
-			name = tcpa_pc_event_id_strings[do_endian_conversion
-							(pc_event->event_id)];
-			n_len = strlen(name);
-			for (i = 0; i < 20; i++)
-				d_len += sprintf(&data[2*i], "%02x",
-						pc_event->event_data[i]);
-			break;
-		default:
-			break;
-		}
-	default:
-		break;
-	}
-
-	return snprintf(dest, MAX_TEXT_EVENT, "[%.*s%.*s]",
-			n_len, name, d_len, data);
-
-}
-
-static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v)
-{
-	struct tcpa_event *event = v;
-	struct tcpa_event temp_event;
-	char *temp_ptr;
-	int i;
-
-	memcpy(&temp_event, event, sizeof(struct tcpa_event));
-
-	/* convert raw integers for endianness */
-	temp_event.pcr_index = do_endian_conversion(event->pcr_index);
-	temp_event.event_type = do_endian_conversion(event->event_type);
-	temp_event.event_size = do_endian_conversion(event->event_size);
-
-	temp_ptr = (char *) &temp_event;
-
-	for (i = 0; i < (sizeof(struct tcpa_event) - 1) ; i++)
-		seq_putc(m, temp_ptr[i]);
-
-	temp_ptr = (char *) v;
-
-	for (i = (sizeof(struct tcpa_event) - 1);
-	     i < (sizeof(struct tcpa_event) + temp_event.event_size); i++)
-		seq_putc(m, temp_ptr[i]);
-
-	return 0;
-
-}
-
-static int tpm_bios_measurements_release(struct inode *inode,
-					 struct file *file)
-{
-	struct seq_file *seq = (struct seq_file *)file->private_data;
-	struct tpm_chip *chip = (struct tpm_chip *)seq->private;
-
-	put_device(&chip->dev);
-
-	return seq_release(inode, file);
-}
-
-static int tpm_ascii_bios_measurements_show(struct seq_file *m, void *v)
-{
-	int len = 0;
-	char *eventname;
-	struct tcpa_event *event = v;
-	unsigned char *event_entry =
-	    (unsigned char *)(v + sizeof(struct tcpa_event));
-
-	eventname = kmalloc(MAX_TEXT_EVENT, GFP_KERNEL);
-	if (!eventname) {
-		printk(KERN_ERR "%s: ERROR - No Memory for event name\n ",
-		       __func__);
-		return -EFAULT;
-	}
-
-	/* 1st: PCR */
-	seq_printf(m, "%2d ", do_endian_conversion(event->pcr_index));
-
-	/* 2nd: SHA1 */
-	seq_printf(m, "%20phN", event->pcr_value);
-
-	/* 3rd: event type identifier */
-	seq_printf(m, " %02x", do_endian_conversion(event->event_type));
-
-	len += get_event_name(eventname, event, event_entry);
-
-	/* 4th: eventname <= max + \'0' delimiter */
-	seq_printf(m, " %s\n", eventname);
-
-	kfree(eventname);
-	return 0;
-}
-
-static const struct seq_operations tpm_ascii_b_measurements_seqops = {
-	.start = tpm_bios_measurements_start,
-	.next = tpm_bios_measurements_next,
-	.stop = tpm_bios_measurements_stop,
-	.show = tpm_ascii_bios_measurements_show,
-};
-
-static const struct seq_operations tpm_binary_b_measurements_seqops = {
-	.start = tpm_bios_measurements_start,
-	.next = tpm_bios_measurements_next,
-	.stop = tpm_bios_measurements_stop,
-	.show = tpm_binary_bios_measurements_show,
-};
-
-static int tpm_bios_measurements_open(struct inode *inode,
-					    struct file *file)
-{
-	int err;
-	struct seq_file *seq;
-	struct tpm_chip_seqops *chip_seqops;
-	const struct seq_operations *seqops;
-	struct tpm_chip *chip;
-
-	inode_lock(inode);
-	if (!inode->i_private) {
-		inode_unlock(inode);
-		return -ENODEV;
-	}
-	chip_seqops = (struct tpm_chip_seqops *)inode->i_private;
-	seqops = chip_seqops->seqops;
-	chip = chip_seqops->chip;
-	get_device(&chip->dev);
-	inode_unlock(inode);
-
-	/* now register seq file */
-	err = seq_open(file, seqops);
-	if (!err) {
-		seq = file->private_data;
-		seq->private = chip;
-	}
-
-	return err;
-}
-
-static const struct file_operations tpm_bios_measurements_ops = {
-	.owner = THIS_MODULE,
-	.open = tpm_bios_measurements_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = tpm_bios_measurements_release,
-};
-
-static int tpm_read_log(struct tpm_chip *chip)
-{
-	int rc;
-
-	if (chip->log.bios_event_log != NULL) {
-		dev_dbg(&chip->dev,
-			"%s: ERROR - event log already initialized\n",
-			__func__);
-		return -EFAULT;
-	}
-
-	rc = tpm_read_log_acpi(chip);
-	if (rc != -ENODEV)
-		return rc;
-
-	rc = tpm_read_log_efi(chip);
-	if (rc != -ENODEV)
-		return rc;
-
-	return tpm_read_log_of(chip);
-}
-
-/*
- * tpm_bios_log_setup() - Read the event log from the firmware
- * @chip: TPM chip to use.
- *
- * If an event log is found then the securityfs files are setup to
- * export it to userspace, otherwise nothing is done.
- *
- * Returns -ENODEV if the firmware has no event log or securityfs is not
- * supported.
- */
-int tpm_bios_log_setup(struct tpm_chip *chip)
-{
-	const char *name = dev_name(&chip->dev);
-	unsigned int cnt;
-	int log_version;
-	int rc = 0;
-
-	rc = tpm_read_log(chip);
-	if (rc < 0)
-		return rc;
-	log_version = rc;
-
-	cnt = 0;
-	chip->bios_dir[cnt] = securityfs_create_dir(name, NULL);
-	/* NOTE: securityfs_create_dir can return ENODEV if securityfs is
-	 * compiled out. The caller should ignore the ENODEV return code.
-	 */
-	if (IS_ERR(chip->bios_dir[cnt]))
-		goto err;
-	cnt++;
-
-	chip->bin_log_seqops.chip = chip;
-	if (log_version == EFI_TCG2_EVENT_LOG_FORMAT_TCG_2)
-		chip->bin_log_seqops.seqops =
-			&tpm2_binary_b_measurements_seqops;
-	else
-		chip->bin_log_seqops.seqops =
-			&tpm_binary_b_measurements_seqops;
-
-
-	chip->bios_dir[cnt] =
-	    securityfs_create_file("binary_bios_measurements",
-				   0440, chip->bios_dir[0],
-				   (void *)&chip->bin_log_seqops,
-				   &tpm_bios_measurements_ops);
-	if (IS_ERR(chip->bios_dir[cnt]))
-		goto err;
-	cnt++;
-
-	if (!(chip->flags & TPM_CHIP_FLAG_TPM2)) {
-
-		chip->ascii_log_seqops.chip = chip;
-		chip->ascii_log_seqops.seqops =
-			&tpm_ascii_b_measurements_seqops;
-
-		chip->bios_dir[cnt] =
-			securityfs_create_file("ascii_bios_measurements",
-					       0440, chip->bios_dir[0],
-					       (void *)&chip->ascii_log_seqops,
-					       &tpm_bios_measurements_ops);
-		if (IS_ERR(chip->bios_dir[cnt]))
-			goto err;
-		cnt++;
-	}
-
-	return 0;
-
-err:
-	rc = PTR_ERR(chip->bios_dir[cnt]);
-	chip->bios_dir[cnt] = NULL;
-	tpm_bios_log_teardown(chip);
-	return rc;
-}
-
-void tpm_bios_log_teardown(struct tpm_chip *chip)
-{
-	int i;
-	struct inode *inode;
-
-	/* securityfs_remove currently doesn't take care of handling sync
-	 * between removal and opening of pseudo files. To handle this, a
-	 * workaround is added by making i_private = NULL here during removal
-	 * and to check it during open(), both within inode_lock()/unlock().
-	 * This design ensures that open() either safely gets kref or fails.
-	 */
-	for (i = (TPM_NUM_EVENT_LOG_FILES - 1); i >= 0; i--) {
-		if (chip->bios_dir[i]) {
-			inode = d_inode(chip->bios_dir[i]);
-			inode_lock(inode);
-			inode->i_private = NULL;
-			inode_unlock(inode);
-			securityfs_remove(chip->bios_dir[i]);
-		}
-	}
-}