diff options
Diffstat (limited to 'drivers')
32 files changed, 1938 insertions, 553 deletions
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h index e1aadae0062..cb76e5ca9a2 100644 --- a/drivers/char/drm/drmP.h +++ b/drivers/char/drm/drmP.h @@ -889,7 +889,6 @@ extern int drm_lock_free(drm_device_t * dev, /* Buffer management support (drm_bufs.h) */ extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request); extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request); -extern int drm_addbufs_fb(drm_device_t *dev, drm_buf_desc_t *request); extern int drm_addmap(drm_device_t * dev, unsigned int offset, unsigned int size, drm_map_type_t type, drm_map_flags_t flags, drm_local_map_t ** map_ptr); diff --git a/drivers/char/drm/drm_agpsupport.c b/drivers/char/drm/drm_agpsupport.c index fabc930c67a..40bfd9b01e3 100644 --- a/drivers/char/drm/drm_agpsupport.c +++ b/drivers/char/drm/drm_agpsupport.c @@ -503,8 +503,6 @@ int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start) return agp_bind_memory(handle, start); } -EXPORT_SYMBOL(drm_agp_bind_memory); - /** Calls agp_unbind_memory() */ int drm_agp_unbind_memory(DRM_AGP_MEM * handle) { diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c index 8a9cf12e618..006b06d2972 100644 --- a/drivers/char/drm/drm_bufs.c +++ b/drivers/char/drm/drm_bufs.c @@ -386,7 +386,6 @@ int drm_rmmap_locked(drm_device_t *dev, drm_local_map_t *map) return 0; } -EXPORT_SYMBOL(drm_rmmap_locked); int drm_rmmap(drm_device_t *dev, drm_local_map_t *map) { @@ -398,7 +397,6 @@ int drm_rmmap(drm_device_t *dev, drm_local_map_t *map) return ret; } -EXPORT_SYMBOL(drm_rmmap); /* The rmmap ioctl appears to be unnecessary. All mappings are torn down on * the last close of the device, and this is necessary for cleanup when things @@ -1053,7 +1051,7 @@ static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request) return 0; } -int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request) +static int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request) { drm_device_dma_t *dma = dev->dma; drm_buf_entry_t *entry; @@ -1212,7 +1210,6 @@ int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request) atomic_dec(&dev->buf_alloc); return 0; } -EXPORT_SYMBOL(drm_addbufs_fb); /** diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c index 68073e14fde..9a842a36bb2 100644 --- a/drivers/char/drm/drm_stub.c +++ b/drivers/char/drm/drm_stub.c @@ -229,8 +229,6 @@ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent, return ret; } -EXPORT_SYMBOL(drm_get_dev); - /** * Put a device minor number. * diff --git a/drivers/char/drm/r300_cmdbuf.c b/drivers/char/drm/r300_cmdbuf.c index b108c7f913b..26bdf2ca59d 100644 --- a/drivers/char/drm/r300_cmdbuf.c +++ b/drivers/char/drm/r300_cmdbuf.c @@ -723,7 +723,7 @@ static int r300_scratch(drm_radeon_private_t *dev_priv, dev_priv->scratch_ages[header.scratch.reg]++; - ref_age_base = *(u32 **)cmdbuf->buf; + ref_age_base = (u32 *)(unsigned long)*((uint64_t *)cmdbuf->buf); cmdbuf->buf += sizeof(u64); cmdbuf->bufsz -= sizeof(u64); diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c index b543821d8cb..56c8243cdb7 100644 --- a/drivers/char/snsc.c +++ b/drivers/char/snsc.c @@ -390,7 +390,8 @@ scdrv_init(void) format_module_id(devnamep, geo_module(geoid), MODULE_FORMAT_BRIEF); devnamep = devname + strlen(devname); - sprintf(devnamep, "#%d", geo_slab(geoid)); + sprintf(devnamep, "^%d#%d", geo_slot(geoid), + geo_slab(geoid)); /* allocate sysctl device data */ scd = kzalloc(sizeof (struct sysctl_data_s), diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index a6873bf89ff..1efde3b2761 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -20,9 +20,18 @@ config TCG_TPM Note: For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI and CONFIG_PNPACPI. +config TCG_TIS + tristate "TPM Interface Specification 1.2 Interface" + depends on TCG_TPM + ---help--- + If you have a TPM security chip that is compliant with the + TCG TIS 1.2 TPM specification say Yes and it will be accessible + from within Linux. To compile this driver as a module, choose + M here; the module will be called tpm_tis. + config TCG_NSC tristate "National Semiconductor TPM Interface" - depends on TCG_TPM + depends on TCG_TPM && PNPACPI ---help--- If you have a TPM security chip from National Semicondutor say Yes and it will be accessible from within Linux. To diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile index ba4582d160f..ea3a1e02a82 100644 --- a/drivers/char/tpm/Makefile +++ b/drivers/char/tpm/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_TCG_TPM) += tpm.o ifdef CONFIG_ACPI obj-$(CONFIG_TCG_TPM) += tpm_bios.o endif +obj-$(CONFIG_TCG_TIS) += tpm_tis.o obj-$(CONFIG_TCG_NSC) += tpm_nsc.o obj-$(CONFIG_TCG_ATMEL) += tpm_atmel.o obj-$(CONFIG_TCG_INFINEON) += tpm_infineon.o diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 5a3870477ef..6889e7db3af 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -32,12 +32,291 @@ enum tpm_const { TPM_MINOR = 224, /* officially assigned */ TPM_BUFSIZE = 2048, TPM_NUM_DEVICES = 256, - TPM_NUM_MASK_ENTRIES = TPM_NUM_DEVICES / (8 * sizeof(int)) }; +enum tpm_duration { + TPM_SHORT = 0, + TPM_MEDIUM = 1, + TPM_LONG = 2, + TPM_UNDEFINED, +}; + +#define TPM_MAX_ORDINAL 243 +#define TPM_MAX_PROTECTED_ORDINAL 12 +#define TPM_PROTECTED_ORDINAL_MASK 0xFF + static LIST_HEAD(tpm_chip_list); static DEFINE_SPINLOCK(driver_lock); -static int dev_mask[TPM_NUM_MASK_ENTRIES]; +static DECLARE_BITMAP(dev_mask, TPM_NUM_DEVICES); + +/* + * Array with one entry per ordinal defining the maximum amount + * of time the chip could take to return the result. The ordinal + * designation of short, medium or long is defined in a table in + * TCG Specification TPM Main Part 2 TPM Structures Section 17. The + * values of the SHORT, MEDIUM, and LONG durations are retrieved + * from the chip during initialization with a call to tpm_get_timeouts. + */ +static const u8 tpm_protected_ordinal_duration[TPM_MAX_PROTECTED_ORDINAL] = { + TPM_UNDEFINED, /* 0 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 5 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 10 */ + TPM_SHORT, +}; + +static const u8 tpm_ordinal_duration[TPM_MAX_ORDINAL] = { + TPM_UNDEFINED, /* 0 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 5 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 10 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_LONG, + TPM_LONG, + TPM_MEDIUM, /* 15 */ + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, + TPM_LONG, + TPM_SHORT, /* 20 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_SHORT, /* 25 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, /* 30 */ + TPM_LONG, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 35 */ + TPM_MEDIUM, + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 40 */ + TPM_LONG, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 45 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_LONG, + TPM_MEDIUM, /* 50 */ + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 55 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 60 */ + TPM_MEDIUM, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, /* 65 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 70 */ + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 75 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_LONG, /* 80 */ + TPM_UNDEFINED, + TPM_MEDIUM, + TPM_LONG, + TPM_SHORT, + TPM_UNDEFINED, /* 85 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 90 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, /* 95 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 100 */ + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 105 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 110 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 115 */ + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_LONG, /* 120 */ + TPM_LONG, + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_SHORT, + TPM_SHORT, /* 125 */ + TPM_SHORT, + TPM_LONG, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 130 */ + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_SHORT, + TPM_MEDIUM, + TPM_UNDEFINED, /* 135 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 140 */ + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 145 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 150 */ + TPM_MEDIUM, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, /* 155 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 160 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 165 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_LONG, /* 170 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 175 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 180 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, /* 185 */ + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 190 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 195 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 200 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, + TPM_SHORT, /* 205 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, /* 210 */ + TPM_UNDEFINED, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_UNDEFINED, /* 215 */ + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, + TPM_SHORT, /* 220 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, /* 225 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 230 */ + TPM_LONG, + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 235 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 240 */ + TPM_UNDEFINED, + TPM_MEDIUM, +}; static void user_reader_timeout(unsigned long ptr) { @@ -46,7 +325,7 @@ static void user_reader_timeout(unsigned long ptr) schedule_work(&chip->work); } -static void timeout_work(void * ptr) +static void timeout_work(void *ptr) { struct tpm_chip *chip = ptr; @@ -57,17 +336,43 @@ static void timeout_work(void * ptr) } /* + * Returns max number of jiffies to wait + */ +unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, + u32 ordinal) +{ + int duration_idx = TPM_UNDEFINED; + int duration = 0; + + if (ordinal < TPM_MAX_ORDINAL) + duration_idx = tpm_ordinal_duration[ordinal]; + else if ((ordinal & TPM_PROTECTED_ORDINAL_MASK) < + TPM_MAX_PROTECTED_ORDINAL) + duration_idx = + tpm_protected_ordinal_duration[ordinal & + TPM_PROTECTED_ORDINAL_MASK]; + + if (duration_idx != TPM_UNDEFINED) + duration = chip->vendor.duration[duration_idx]; + if (duration <= 0) + return 2 * 60 * HZ; + else + return duration; +} +EXPORT_SYMBOL_GPL(tpm_calc_ordinal_duration); + +/* * Internal kernel interface to transmit TPM commands */ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf, size_t bufsiz) { ssize_t rc; - u32 count; + u32 count, ordinal; unsigned long stop; count = be32_to_cpu(*((__be32 *) (buf + 2))); - + ordinal = be32_to_cpu(*((__be32 *) (buf + 6))); if (count == 0) return -ENODATA; if (count > bufsiz) { @@ -78,21 +383,23 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf, down(&chip->tpm_mutex); - if ((rc = chip->vendor->send(chip, (u8 *) buf, count)) < 0) { + if ((rc = chip->vendor.send(chip, (u8 *) buf, count)) < 0) { dev_err(chip->dev, "tpm_transmit: tpm_send: error %zd\n", rc); goto out; } - stop = jiffies + 2 * 60 * HZ; + if (chip->vendor.irq) + goto out_recv; + + stop = jiffies + tpm_calc_ordinal_duration(chip, ordinal); do { - u8 status = chip->vendor->status(chip); - if ((status & chip->vendor->req_complete_mask) == - chip->vendor->req_complete_val) { + u8 status = chip->vendor.status(chip); + if ((status & chip->vendor.req_complete_mask) == + chip->vendor.req_complete_val) goto out_recv; - } - if ((status == chip->vendor->req_canceled)) { + if ((status == chip->vendor.req_canceled)) { dev_err(chip->dev, "Operation Canceled\n"); rc = -ECANCELED; goto out; @@ -102,14 +409,13 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf, rmb(); } while (time_before(jiffies, stop)); - - chip->vendor->cancel(chip); + chip->vendor.cancel(chip); dev_err(chip->dev, "Operation Timed out\n"); rc = -ETIME; goto out; out_recv: - rc = chip->vendor->recv(chip, (u8 *) buf, bufsiz); + rc = chip->vendor.recv(chip, (u8 *) buf, bufsiz); if (rc < 0) dev_err(chip->dev, "tpm_transmit: tpm_recv: error %zd\n", rc); @@ -119,17 +425,247 @@ out: } #define TPM_DIGEST_SIZE 20 -#define CAP_PCR_RESULT_SIZE 18 -static const u8 cap_pcr[] = { +#define TPM_ERROR_SIZE 10 +#define TPM_RET_CODE_IDX 6 +#define TPM_GET_CAP_RET_SIZE_IDX 10 +#define TPM_GET_CAP_RET_UINT32_1_IDX 14 +#define TPM_GET_CAP_RET_UINT32_2_IDX 18 +#define TPM_GET_CAP_RET_UINT32_3_IDX 22 +#define TPM_GET_CAP_RET_UINT32_4_IDX 26 +#define TPM_GET_CAP_PERM_DISABLE_IDX 16 +#define TPM_GET_CAP_PERM_INACTIVE_IDX 18 +#define TPM_GET_CAP_RET_BOOL_1_IDX 14 +#define TPM_GET_CAP_TEMP_INACTIVE_IDX 16 + +#define TPM_CAP_IDX 13 +#define TPM_CAP_SUBCAP_IDX 21 + +enum tpm_capabilities { + TPM_CAP_FLAG = 4, + TPM_CAP_PROP = 5, +}; + +enum tpm_sub_capabilities { + TPM_CAP_PROP_PCR = 0x1, + TPM_CAP_PROP_MANUFACTURER = 0x3, + TPM_CAP_FLAG_PERM = 0x8, + TPM_CAP_FLAG_VOL = 0x9, + TPM_CAP_PROP_OWNER = 0x11, + TPM_CAP_PROP_TIS_TIMEOUT = 0x15, + TPM_CAP_PROP_TIS_DURATION = 0x20, +}; + +/* + * This is a semi generic GetCapability command for use + * with the capability type TPM_CAP_PROP or TPM_CAP_FLAG + * and their associated sub_capabilities. + */ + +static const u8 tpm_cap[] = { 0, 193, /* TPM_TAG_RQU_COMMAND */ 0, 0, 0, 22, /* length */ 0, 0, 0, 101, /* TPM_ORD_GetCapability */ - 0, 0, 0, 5, - 0, 0, 0, 4, - 0, 0, 1, 1 + 0, 0, 0, 0, /* TPM_CAP_<TYPE> */ + 0, 0, 0, 4, /* TPM_CAP_SUB_<TYPE> size */ + 0, 0, 1, 0 /* TPM_CAP_SUB_<TYPE> */ }; -#define READ_PCR_RESULT_SIZE 30 +static ssize_t transmit_cmd(struct tpm_chip *chip, u8 *data, int len, + char *desc) +{ + int err; + + len = tpm_transmit(chip, data, len); + if (len < 0) + return len; + if (len == TPM_ERROR_SIZE) { + err = be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX))); + dev_dbg(chip->dev, "A TPM error (%d) occurred %s\n", err, desc); + return err; + } + return 0; +} + +void tpm_gen_interrupt(struct tpm_chip *chip) +{ + u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 30)]; + ssize_t rc; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_TIMEOUT; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the timeouts"); +} +EXPORT_SYMBOL_GPL(tpm_gen_interrupt); + +void tpm_get_timeouts(struct tpm_chip *chip) +{ + u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 30)]; + ssize_t rc; + u32 timeout; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_TIMEOUT; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the timeouts"); + if (rc) + goto duration; + + if (be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_SIZE_IDX))) + != 4 * sizeof(u32)) + goto duration; + + /* Don't overwrite default if value is 0 */ + timeout = + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX))); + if (timeout) + chip->vendor.timeout_a = msecs_to_jiffies(timeout); + timeout = + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_2_IDX))); + if (timeout) + chip->vendor.timeout_b = msecs_to_jiffies(timeout); + timeout = + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_3_IDX))); + if (timeout) + chip->vendor.timeout_c = msecs_to_jiffies(timeout); + timeout = + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_4_IDX))); + if (timeout) + chip->vendor.timeout_d = msecs_to_jiffies(timeout); + +duration: + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_DURATION; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the durations"); + if (rc) + return; + + if (be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_SIZE_IDX))) + != 3 * sizeof(u32)) + return; + + chip->vendor.duration[TPM_SHORT] = + msecs_to_jiffies(be32_to_cpu + (*((__be32 *) (data + + TPM_GET_CAP_RET_UINT32_1_IDX)))); + chip->vendor.duration[TPM_MEDIUM] = + msecs_to_jiffies(be32_to_cpu + (*((__be32 *) (data + + TPM_GET_CAP_RET_UINT32_2_IDX)))); + chip->vendor.duration[TPM_LONG] = + msecs_to_jiffies(be32_to_cpu + (*((__be32 *) (data + + TPM_GET_CAP_RET_UINT32_3_IDX)))); +} +EXPORT_SYMBOL_GPL(tpm_get_timeouts); + +void tpm_continue_selftest(struct tpm_chip *chip) +{ + u8 data[] = { + 0, 193, /* TPM_TAG_RQU_COMMAND */ + 0, 0, 0, 10, /* length */ + 0, 0, 0, 83, /* TPM_ORD_GetCapability */ + }; + + tpm_transmit(chip, data, sizeof(data)); +} +EXPORT_SYMBOL_GPL(tpm_continue_selftest); + +ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr, + char *buf) +{ + u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 35)]; + ssize_t rc; + + struct tpm_chip *chip = dev_get_drvdata(dev); + if (chip == NULL) + return -ENODEV; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_FLAG; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM; + + rc = transmit_cmd(chip, data, sizeof(data), + "attemtping to determine the permanent state"); + if (rc) + return 0; + return sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_DISABLE_IDX]); +} +EXPORT_SYMBOL_GPL(tpm_show_enabled); + +ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr, + char *buf) +{ + u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 35)]; + ssize_t rc; + + struct tpm_chip *chip = dev_get_drvdata(dev); + if (chip == NULL) + return -ENODEV; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_FLAG; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM; + + rc = transmit_cmd(chip, data, sizeof(data), + "attemtping to determine the permanent state"); + if (rc) + return 0; + return sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_INACTIVE_IDX]); +} +EXPORT_SYMBOL_GPL(tpm_show_active); + +ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr, + char *buf) +{ + u8 data[sizeof(tpm_cap)]; + ssize_t rc; + + struct tpm_chip *chip = dev_get_drvdata(dev); + if (chip == NULL) + return -ENODEV; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_OWNER; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the owner state"); + if (rc) + return 0; + return sprintf(buf, "%d\n", data[TPM_GET_CAP_RET_BOOL_1_IDX]); +} +EXPORT_SYMBOL_GPL(tpm_show_owned); + +ssize_t tpm_show_temp_deactivated(struct device * dev, + struct device_attribute * attr, char *buf) +{ + u8 data[sizeof(tpm_cap)]; + ssize_t rc; + + struct tpm_chip *chip = dev_get_drvdata(dev); + if (chip == NULL) + return -ENODEV; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_FLAG; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_VOL; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the temporary state"); + if (rc) + return 0; + return sprintf(buf, "%d\n", data[TPM_GET_CAP_TEMP_INACTIVE_IDX]); +} +EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated); + static const u8 pcrread[] = { 0, 193, /* TPM_TAG_RQU_COMMAND */ 0, 0, 0, 14, /* length */ @@ -140,8 +676,8 @@ static const u8 pcrread[] = { ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr, char *buf) { - u8 data[READ_PCR_RESULT_SIZE]; - ssize_t len; + u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(pcrread)), 30)]; + ssize_t rc; int i, j, num_pcrs; __be32 index; char *str = buf; @@ -150,29 +686,24 @@ ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr, if (chip == NULL) return -ENODEV; - memcpy(data, cap_pcr, sizeof(cap_pcr)); - if ((len = tpm_transmit(chip, data, sizeof(data))) - < CAP_PCR_RESULT_SIZE) { - dev_dbg(chip->dev, "A TPM error (%d) occurred " - "attempting to determine the number of PCRS\n", - be32_to_cpu(*((__be32 *) (data + 6)))); + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_PCR; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the number of PCRS"); + if (rc) return 0; - } num_pcrs = be32_to_cpu(*((__be32 *) (data + 14))); - for (i = 0; i < num_pcrs; i++) { memcpy(data, pcrread, sizeof(pcrread)); index = cpu_to_be32(i); memcpy(data + 10, &index, 4); - if ((len = tpm_transmit(chip, data, sizeof(data))) - < READ_PCR_RESULT_SIZE){ - dev_dbg(chip->dev, "A TPM error (%d) occurred" - " attempting to read PCR %d of %d\n", - be32_to_cpu(*((__be32 *) (data + 6))), - i, num_pcrs); + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to read a PCR"); + if (rc) goto out; - } str += sprintf(str, "PCR-%02d: ", i); for (j = 0; j < TPM_DIGEST_SIZE; j++) str += sprintf(str, "%02X ", *(data + 10 + j)); @@ -194,7 +725,7 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr, char *buf) { u8 *data; - ssize_t len; + ssize_t err; int i, rc; char *str = buf; @@ -208,14 +739,10 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr, memcpy(data, readpubek, sizeof(readpubek)); - if ((len = tpm_transmit(chip, data, READ_PUBEK_RESULT_SIZE)) < - READ_PUBEK_RESULT_SIZE) { - dev_dbg(chip->dev, "A TPM error (%d) occurred " - "attempting to read the PUBEK\n", - be32_to_cpu(*((__be32 *) (data + 6)))); - rc = 0; + err = transmit_cmd(chip, data, READ_PUBEK_RESULT_SIZE, + "attempting to read the PUBEK"); + if (err) goto out; - } /* ignore header 10 bytes @@ -245,67 +772,110 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr, if ((i + 1) % 16 == 0) str += sprintf(str, "\n"); } - rc = str - buf; out: + rc = str - buf; kfree(data); return rc; } EXPORT_SYMBOL_GPL(tpm_show_pubek); -#define CAP_VER_RESULT_SIZE 18 +#define CAP_VERSION_1_1 6 +#define CAP_VERSION_1_2 0x1A +#define CAP_VERSION_IDX 13 static const u8 cap_version[] = { 0, 193, /* TPM_TAG_RQU_COMMAND */ 0, 0, 0, 18, /* length */ 0, 0, 0, 101, /* TPM_ORD_GetCapability */ - 0, 0, 0, 6, + 0, 0, 0, 0, 0, 0, 0, 0 }; -#define CAP_MANUFACTURER_RESULT_SIZE 18 -static const u8 cap_manufacturer[] = { - 0, 193, /* TPM_TAG_RQU_COMMAND */ - 0, 0, 0, 22, /* length */ - 0, 0, 0, 101, /* TPM_ORD_GetCapability */ - 0, 0, 0, 5, - 0, 0, 0, 4, - 0, 0, 1, 3 -}; - ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr, char *buf) { - u8 data[sizeof(cap_manufacturer)]; - ssize_t len; + u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(cap_version)), 30)]; + ssize_t rc; char *str = buf; struct tpm_chip *chip = dev_get_drvdata(dev); if (chip == NULL) return -ENODEV; - memcpy(data, cap_manufacturer, sizeof(cap_manufacturer)); + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER; - if ((len = tpm_transmit(chip, data, sizeof(data))) < - CAP_MANUFACTURER_RESULT_SIZE) - return len; + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the manufacturer"); + if (rc) + return 0; str += sprintf(str, "Manufacturer: 0x%x\n", - be32_to_cpu(*((__be32 *) (data + 14)))); + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX)))); memcpy(data, cap_version, sizeof(cap_version)); + data[CAP_VERSION_IDX] = CAP_VERSION_1_1; + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the 1.1 version"); + if (rc) + goto out; - if ((len = tpm_tran |