| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jarkko Sakkinen | 1214 | 53.32% | 24 | 25.53% |
| Rajiv Andrade | 306 | 13.44% | 5 | 5.32% |
| Jason Gunthorpe | 207 | 9.09% | 12 | 12.77% |
| Kylene Jo Hall | 98 | 4.30% | 8 | 8.51% |
| Nayna Jain | 83 | 3.65% | 7 | 7.45% |
| Stefan Berger | 56 | 2.46% | 12 | 12.77% |
| Kent Yoder | 50 | 2.20% | 1 | 1.06% |
| Christophe Ricard | 48 | 2.11% | 3 | 3.19% |
| James Bottomley | 43 | 1.89% | 4 | 4.26% |
| Hamza Attak | 28 | 1.23% | 1 | 1.06% |
| Tomas Winkler | 26 | 1.14% | 1 | 1.06% |
| Thiébaud Weksteen | 21 | 0.92% | 1 | 1.06% |
| Xiaoyan Zhang | 15 | 0.66% | 1 | 1.06% |
| Duncan Laurie | 14 | 0.61% | 1 | 1.06% |
| Javier Martinez Canillas | 13 | 0.57% | 1 | 1.06% |
| Tadeusz Struk | 12 | 0.53% | 1 | 1.06% |
| Azhar Shaikh | 8 | 0.35% | 1 | 1.06% |
| Gang Wei | 7 | 0.31% | 1 | 1.06% |
| Enric Balletbò i Serra | 7 | 0.31% | 1 | 1.06% |
| Al Viro | 5 | 0.22% | 2 | 2.13% |
| Leendert van Doorn | 5 | 0.22% | 1 | 1.06% |
| Matthias Kaehlcke | 4 | 0.18% | 1 | 1.06% |
| Jeff Garzik | 3 | 0.13% | 1 | 1.06% |
| Andrew Morton | 2 | 0.09% | 1 | 1.06% |
| Nishanth Aravamudan | 1 | 0.04% | 1 | 1.06% |
| Roberto Sassu | 1 | 0.04% | 1 | 1.06% |
| Total | 2277 | 94 |
/* * Copyright (C) 2004 IBM Corporation * Copyright (C) 2015 Intel Corporation * * Authors: * Leendert van Doorn <leendert@watson.ibm.com> * Dave Safford <safford@watson.ibm.com> * Reiner Sailer <sailer@watson.ibm.com> * Kylene Hall <kjhall@us.ibm.com> * * Maintained by: <tpmdd-devel@lists.sourceforge.net> * * Device driver for TCG/TCPA TPM (trusted platform module). * Specifications at www.trustedcomputinggroup.org * * 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, version 2 of the * License. * */ #ifndef __TPM_H__ #define __TPM_H__ #include <linux/module.h> #include <linux/delay.h> #include <linux/fs.h> #include <linux/hw_random.h> #include <linux/mutex.h> #include <linux/sched.h> #include <linux/platform_device.h> #include <linux/io.h> #include <linux/tpm.h> #include <linux/acpi.h> #include <linux/cdev.h> #include <linux/highmem.h> #include <linux/tpm_eventlog.h> #include <crypto/hash_info.h> #ifdef CONFIG_X86 #include <asm/intel-family.h> #endif enum tpm_const { TPM_MINOR = 224, /* officially assigned */ TPM_BUFSIZE = 4096, TPM_NUM_DEVICES = 65536, TPM_RETRY = 50, /* 5 seconds */ TPM_NUM_EVENT_LOG_FILES = 3, }; enum tpm_timeout { TPM_TIMEOUT = 5, /* msecs */ TPM_TIMEOUT_RETRY = 100, /* msecs */ TPM_TIMEOUT_RANGE_US = 300, /* usecs */ TPM_TIMEOUT_POLL = 1, /* msecs */ TPM_TIMEOUT_USECS_MIN = 100, /* usecs */ TPM_TIMEOUT_USECS_MAX = 500 /* usecs */ }; /* TPM addresses */ enum tpm_addr { TPM_SUPERIO_ADDR = 0x2E, TPM_ADDR = 0x4E, }; /* Indexes the duration array */ enum tpm_duration { TPM_SHORT = 0, TPM_MEDIUM = 1, TPM_LONG = 2, TPM_LONG_LONG = 3, TPM_UNDEFINED, TPM_NUM_DURATIONS = TPM_UNDEFINED, }; #define TPM_WARN_RETRY 0x800 #define TPM_WARN_DOING_SELFTEST 0x802 #define TPM_ERR_DEACTIVATED 0x6 #define TPM_ERR_DISABLED 0x7 #define TPM_ERR_INVALID_POSTINIT 38 #define TPM_HEADER_SIZE 10 enum tpm2_const { TPM2_PLATFORM_PCR = 24, TPM2_PCR_SELECT_MIN = ((TPM2_PLATFORM_PCR + 7) / 8), }; enum tpm2_timeouts { TPM2_TIMEOUT_A = 750, TPM2_TIMEOUT_B = 2000, TPM2_TIMEOUT_C = 200, TPM2_TIMEOUT_D = 30, TPM2_DURATION_SHORT = 20, TPM2_DURATION_MEDIUM = 750, TPM2_DURATION_LONG = 2000, TPM2_DURATION_LONG_LONG = 300000, TPM2_DURATION_DEFAULT = 120000, }; enum tpm2_structures { TPM2_ST_NO_SESSIONS = 0x8001, TPM2_ST_SESSIONS = 0x8002, }; /* Indicates from what layer of the software stack the error comes from */ #define TSS2_RC_LAYER_SHIFT 16 #define TSS2_RESMGR_TPM_RC_LAYER (11 << TSS2_RC_LAYER_SHIFT) enum tpm2_return_codes { TPM2_RC_SUCCESS = 0x0000, TPM2_RC_HASH = 0x0083, /* RC_FMT1 */ TPM2_RC_HANDLE = 0x008B, TPM2_RC_INITIALIZE = 0x0100, /* RC_VER1 */ TPM2_RC_FAILURE = 0x0101, TPM2_RC_DISABLED = 0x0120, TPM2_RC_COMMAND_CODE = 0x0143, TPM2_RC_TESTING = 0x090A, /* RC_WARN */ TPM2_RC_REFERENCE_H0 = 0x0910, TPM2_RC_RETRY = 0x0922, }; enum tpm2_algorithms { TPM2_ALG_ERROR = 0x0000, TPM2_ALG_SHA1 = 0x0004, TPM2_ALG_KEYEDHASH = 0x0008, TPM2_ALG_SHA256 = 0x000B, TPM2_ALG_SHA384 = 0x000C, TPM2_ALG_SHA512 = 0x000D, TPM2_ALG_NULL = 0x0010, TPM2_ALG_SM3_256 = 0x0012, }; enum tpm2_command_codes { TPM2_CC_FIRST = 0x011F, TPM2_CC_CREATE_PRIMARY = 0x0131, TPM2_CC_SELF_TEST = 0x0143, TPM2_CC_STARTUP = 0x0144, TPM2_CC_SHUTDOWN = 0x0145, TPM2_CC_CREATE = 0x0153, TPM2_CC_LOAD = 0x0157, TPM2_CC_UNSEAL = 0x015E, TPM2_CC_CONTEXT_LOAD = 0x0161, TPM2_CC_CONTEXT_SAVE = 0x0162, TPM2_CC_FLUSH_CONTEXT = 0x0165, TPM2_CC_GET_CAPABILITY = 0x017A, TPM2_CC_GET_RANDOM = 0x017B, TPM2_CC_PCR_READ = 0x017E, TPM2_CC_PCR_EXTEND = 0x0182, TPM2_CC_LAST = 0x018F, }; enum tpm2_permanent_handles { TPM2_RS_PW = 0x40000009, }; enum tpm2_capabilities { TPM2_CAP_HANDLES = 1, TPM2_CAP_COMMANDS = 2, TPM2_CAP_PCRS = 5, TPM2_CAP_TPM_PROPERTIES = 6, }; enum tpm2_properties { TPM_PT_TOTAL_COMMANDS = 0x0129, }; enum tpm2_startup_types { TPM2_SU_CLEAR = 0x0000, TPM2_SU_STATE = 0x0001, }; enum tpm2_cc_attrs { TPM2_CC_ATTR_CHANDLES = 25, TPM2_CC_ATTR_RHANDLE = 28, }; #define TPM_VID_INTEL 0x8086 #define TPM_VID_WINBOND 0x1050 #define TPM_VID_STM 0x104A #define TPM_PPI_VERSION_LEN 3 struct tpm_space { u32 context_tbl[3]; u8 *context_buf; u32 session_tbl[3]; u8 *session_buf; }; enum tpm_chip_flags { TPM_CHIP_FLAG_TPM2 = BIT(1), TPM_CHIP_FLAG_IRQ = BIT(2), TPM_CHIP_FLAG_VIRTUAL = BIT(3), TPM_CHIP_FLAG_HAVE_TIMEOUTS = BIT(4), TPM_CHIP_FLAG_ALWAYS_POWERED = BIT(5), }; struct tpm_bios_log { void *bios_event_log; void *bios_event_log_end; }; struct tpm_chip_seqops { struct tpm_chip *chip; const struct seq_operations *seqops; }; struct tpm_chip { struct device dev; struct device devs; struct cdev cdev; struct cdev cdevs; /* A driver callback under ops cannot be run unless ops_sem is held * (sometimes implicitly, eg for the sysfs code). ops becomes null * when the driver is unregistered, see tpm_try_get_ops. */ struct rw_semaphore ops_sem; const struct tpm_class_ops *ops; struct tpm_bios_log log; struct tpm_chip_seqops bin_log_seqops; struct tpm_chip_seqops ascii_log_seqops; unsigned int flags; int dev_num; /* /dev/tpm# */ unsigned long is_open; /* only one allowed */ char hwrng_name[64]; struct hwrng hwrng; struct mutex tpm_mutex; /* tpm is processing */ unsigned long timeout_a; /* jiffies */ unsigned long timeout_b; /* jiffies */ unsigned long timeout_c; /* jiffies */ unsigned long timeout_d; /* jiffies */ bool timeout_adjusted; unsigned long duration[TPM_NUM_DURATIONS]; /* jiffies */ bool duration_adjusted; struct dentry *bios_dir[TPM_NUM_EVENT_LOG_FILES]; const struct attribute_group *groups[3]; unsigned int groups_cnt; u16 active_banks[7]; #ifdef CONFIG_ACPI acpi_handle acpi_dev_handle; char ppi_version[TPM_PPI_VERSION_LEN + 1]; #endif /* CONFIG_ACPI */ struct tpm_space work_space; u32 nr_commands; u32 *cc_attrs_tbl; /* active locality */ int locality; }; #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; } __packed; #define TPM_TAG_RQU_COMMAND 193 struct stclear_flags_t { __be16 tag; u8 deactivated; u8 disableForceClear; u8 physicalPresence; u8 physicalPresenceLock; u8 bGlobalLock; } __packed; struct tpm_version_t { u8 Major; u8 Minor; u8 revMajor; u8 revMinor; } __packed; struct tpm_version_1_2_t { __be16 tag; u8 Major; u8 Minor; u8 revMajor; u8 revMinor; } __packed; struct timeout_t { __be32 a; __be32 b; __be32 c; __be32 d; } __packed; struct duration_t { __be32 tpm_short; __be32 tpm_medium; __be32 tpm_long; } __packed; struct permanent_flags_t { __be16 tag; u8 disable; u8 ownership; u8 deactivated; u8 readPubek; u8 disableOwnerClear; u8 allowMaintenance; u8 physicalPresenceLifetimeLock; u8 physicalPresenceHWEnable; u8 physicalPresenceCMDEnable; u8 CEKPUsed; u8 TPMpost; u8 TPMpostLock; u8 FIPS; u8 operator; u8 enableRevokeEK; u8 nvLocked; u8 readSRKPub; u8 tpmEstablished; u8 maintenanceDone; u8 disableFullDALogicInfo; } __packed; typedef union { struct permanent_flags_t perm_flags; struct stclear_flags_t stclear_flags; __u8 owned; __be32 num_pcrs; struct tpm_version_t tpm_version; struct tpm_version_1_2_t tpm_version_1_2; __be32 manufacturer_id; struct timeout_t timeout; struct duration_t duration; } cap_t; enum tpm_capabilities { TPM_CAP_FLAG = 4, TPM_CAP_PROP = 5, TPM_CAP_VERSION_1_1 = 0x06, TPM_CAP_VERSION_1_2 = 0x1A, }; enum tpm_sub_capabilities { TPM_CAP_PROP_PCR = 0x101, TPM_CAP_PROP_MANUFACTURER = 0x103, TPM_CAP_FLAG_PERM = 0x108, TPM_CAP_FLAG_VOL = 0x109, TPM_CAP_PROP_OWNER = 0x111, TPM_CAP_PROP_TIS_TIMEOUT = 0x115, TPM_CAP_PROP_TIS_DURATION = 0x120, }; typedef union { struct tpm_input_header in; struct tpm_output_header out; } tpm_cmd_header; struct tpm_pcrread_out { u8 pcr_result[TPM_DIGEST_SIZE]; } __packed; struct tpm_pcrread_in { __be32 pcr_idx; } __packed; /* 128 bytes is an arbitrary cap. This could be as large as TPM_BUFSIZE - 18 * bytes, but 128 is still a relatively large number of random bytes and * anything much bigger causes users of struct tpm_cmd_t to start getting * compiler warnings about stack frame size. */ #define TPM_MAX_RNG_DATA 128 struct tpm_getrandom_out { __be32 rng_data_len; u8 rng_data[TPM_MAX_RNG_DATA]; } __packed; struct tpm_getrandom_in { __be32 num_bytes; } __packed; typedef union { struct tpm_pcrread_in pcrread_in; struct tpm_pcrread_out pcrread_out; struct tpm_getrandom_in getrandom_in; struct tpm_getrandom_out getrandom_out; } tpm_cmd_params; struct tpm_cmd_t { tpm_cmd_header header; tpm_cmd_params params; } __packed; /* A string buffer type for constructing TPM commands. This is based on the * ideas of string buffer code in security/keys/trusted.h but is heap based * in order to keep the stack usage minimal. */ enum tpm_buf_flags { TPM_BUF_OVERFLOW = BIT(0), }; struct tpm_buf { struct page *data_page; unsigned int flags; u8 *data; }; 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; head->tag = cpu_to_be16(tag); head->length = cpu_to_be32(sizeof(*head)); head->ordinal = cpu_to_be32(ordinal); } static inline int tpm_buf_init(struct tpm_buf *buf, u16 tag, u32 ordinal) { buf->data_page = alloc_page(GFP_HIGHUSER); if (!buf->data_page) return -ENOMEM; buf->flags = 0; buf->data = kmap(buf->data_page); tpm_buf_reset(buf, tag, ordinal); return 0; } static inline void tpm_buf_destroy(struct tpm_buf *buf) { kunmap(buf->data_page); __free_page(buf->data_page); } static inline u32 tpm_buf_length(struct tpm_buf *buf) { struct tpm_input_header *head = (struct tpm_input_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; return be16_to_cpu(head->tag); } 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; u32 len = tpm_buf_length(buf); /* Return silently if overflow has already happened. */ if (buf->flags & TPM_BUF_OVERFLOW) return; if ((len + new_len) > PAGE_SIZE) { WARN(1, "tpm_buf: overflow\n"); buf->flags |= TPM_BUF_OVERFLOW; return; } memcpy(&buf->data[len], new_data, new_len); head->length = cpu_to_be32(len + new_len); } static inline void tpm_buf_append_u8(struct tpm_buf *buf, const u8 value) { tpm_buf_append(buf, &value, 1); } static inline void tpm_buf_append_u16(struct tpm_buf *buf, const u16 value) { __be16 value2 = cpu_to_be16(value); tpm_buf_append(buf, (u8 *) &value2, 2); } static inline void tpm_buf_append_u32(struct tpm_buf *buf, const u32 value) { __be32 value2 = cpu_to_be32(value); tpm_buf_append(buf, (u8 *) &value2, 4); } extern struct class *tpm_class; extern struct class *tpmrm_class; extern dev_t tpm_devt; extern const struct file_operations tpm_fops; extern const struct file_operations tpmrm_fops; extern struct idr dev_nums_idr; /** * enum tpm_transmit_flags - flags for tpm_transmit() * * @TPM_TRANSMIT_UNLOCKED: do not lock the chip * @TPM_TRANSMIT_NESTED: discard setup steps (power management, * locality) including locking (i.e. implicit * UNLOCKED) */ enum tpm_transmit_flags { TPM_TRANSMIT_UNLOCKED = BIT(0), TPM_TRANSMIT_NESTED = BIT(1), }; ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, u8 *buf, size_t bufsiz, unsigned int flags); ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_space *space, void *buf, size_t bufsiz, size_t min_rsp_body_length, unsigned int flags, const char *desc); int tpm_startup(struct tpm_chip *chip); ssize_t tpm_getcap(struct tpm_chip *chip, u32 subcap_id, cap_t *cap, const char *desc, size_t min_cap_length); int tpm_get_timeouts(struct tpm_chip *); int tpm1_auto_startup(struct tpm_chip *chip); int tpm_do_selftest(struct tpm_chip *chip); unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal); int tpm_pm_suspend(struct device *dev); int tpm_pm_resume(struct device *dev); static inline void tpm_msleep(unsigned int delay_msec) { usleep_range((delay_msec * 1000) - TPM_TIMEOUT_RANGE_US, delay_msec * 1000); }; struct tpm_chip *tpm_find_get_ops(struct tpm_chip *chip); __must_check int tpm_try_get_ops(struct tpm_chip *chip); void tpm_put_ops(struct tpm_chip *chip); struct tpm_chip *tpm_chip_alloc(struct device *dev, const struct tpm_class_ops *ops); struct tpm_chip *tpmm_chip_alloc(struct device *pdev, const struct tpm_class_ops *ops); int tpm_chip_register(struct tpm_chip *chip); void tpm_chip_unregister(struct tpm_chip *chip); void tpm_sysfs_add_device(struct tpm_chip *chip); int tpm_pcr_read_dev(struct tpm_chip *chip, int pcr_idx, u8 *res_buf); #ifdef CONFIG_ACPI extern void tpm_add_ppi(struct tpm_chip *chip); #else static inline void tpm_add_ppi(struct tpm_chip *chip) { } #endif static inline u32 tpm2_rc_value(u32 rc) { return (rc & BIT(7)) ? rc & 0xff : rc; } int tpm2_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf); int tpm2_pcr_extend(struct tpm_chip *chip, int pcr_idx, u32 count, struct tpm2_digest *digests); int tpm2_get_random(struct tpm_chip *chip, u8 *dest, size_t max); void tpm2_flush_context_cmd(struct tpm_chip *chip, u32 handle, unsigned int flags); int tpm2_seal_trusted(struct tpm_chip *chip, struct trusted_key_payload *payload, struct trusted_key_options *options); int tpm2_unseal_trusted(struct tpm_chip *chip, struct trusted_key_payload *payload, struct trusted_key_options *options); ssize_t tpm2_get_tpm_pt(struct tpm_chip *chip, u32 property_id, u32 *value, const char *desc); int tpm2_auto_startup(struct tpm_chip *chip); void tpm2_shutdown(struct tpm_chip *chip, u16 shutdown_type); unsigned long tpm2_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal); int tpm2_probe(struct tpm_chip *chip); int tpm2_find_cc(struct tpm_chip *chip, u32 cc); int tpm2_init_space(struct tpm_space *space); 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); int tpm_bios_log_setup(struct tpm_chip *chip); void tpm_bios_log_teardown(struct tpm_chip *chip); int tpm_dev_common_init(void); void tpm_dev_common_exit(void); #endif
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