diff options
Diffstat (limited to 'drivers/s390/crypto')
| -rw-r--r-- | drivers/s390/crypto/Makefile | 2 | ||||
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 79 | ||||
| -rw-r--r-- | drivers/s390/crypto/ap_bus.h | 25 | ||||
| -rw-r--r-- | drivers/s390/crypto/pkey_api.c | 521 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_api.c | 627 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_api.h | 15 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_card.c | 2 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_cca_key.h | 2 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_cex2a.c | 6 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_cex2a.h | 6 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_cex2c.c (renamed from drivers/s390/crypto/zcrypt_pcixcc.c) | 125 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_cex2c.h (renamed from drivers/s390/crypto/zcrypt_pcixcc.h) | 14 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_cex4.c | 20 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_error.h | 24 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_msgtype50.c | 24 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_msgtype50.h | 2 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_msgtype6.c | 74 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_msgtype6.h | 15 | ||||
| -rw-r--r-- | drivers/s390/crypto/zcrypt_queue.c | 2 |
19 files changed, 1307 insertions, 278 deletions
diff --git a/drivers/s390/crypto/Makefile b/drivers/s390/crypto/Makefile index b59af548ed1c..fd5e215c66b7 100644 --- a/drivers/s390/crypto/Makefile +++ b/drivers/s390/crypto/Makefile @@ -10,7 +10,7 @@ zcrypt-objs := zcrypt_api.o zcrypt_card.o zcrypt_queue.o zcrypt-objs += zcrypt_msgtype6.o zcrypt_msgtype50.o obj-$(CONFIG_ZCRYPT) += zcrypt.o # adapter drivers depend on ap.o and zcrypt.o -obj-$(CONFIG_ZCRYPT) += zcrypt_pcixcc.o zcrypt_cex2a.o zcrypt_cex4.o +obj-$(CONFIG_ZCRYPT) += zcrypt_cex2c.o zcrypt_cex2a.o zcrypt_cex4.o # pkey kernel module pkey-objs := pkey_api.o diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index f039266b275d..048665e4f13d 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -65,12 +65,11 @@ static struct device *ap_root_device; DEFINE_SPINLOCK(ap_list_lock); LIST_HEAD(ap_card_list); -/* Default permissions (card and domain masking) */ -static struct ap_perms { - DECLARE_BITMAP(apm, AP_DEVICES); - DECLARE_BITMAP(aqm, AP_DOMAINS); -} ap_perms; -static DEFINE_MUTEX(ap_perms_mutex); +/* Default permissions (ioctl, card and domain masking) */ +struct ap_perms ap_perms; +EXPORT_SYMBOL(ap_perms); +DEFINE_MUTEX(ap_perms_mutex); +EXPORT_SYMBOL(ap_perms_mutex); static struct ap_config_info *ap_configuration; static bool initialised; @@ -944,21 +943,9 @@ static int modify_bitmap(const char *str, unsigned long *bitmap, int bits) return 0; } -/* - * process_mask_arg() - parse a bitmap string and clear/set the - * bits in the bitmap accordingly. The string may be given as - * absolute value, a hex string like 0x1F2E3D4C5B6A" simple over- - * writing the current content of the bitmap. Or as relative string - * like "+1-16,-32,-0x40,+128" where only single bits or ranges of - * bits are cleared or set. Distinction is done based on the very - * first character which may be '+' or '-' for the relative string - * and othewise assume to be an absolute value string. If parsing fails - * a negative errno value is returned. All arguments and bitmaps are - * big endian order. - */ -static int process_mask_arg(const char *str, - unsigned long *bitmap, int bits, - struct mutex *lock) +int ap_parse_mask_str(const char *str, + unsigned long *bitmap, int bits, + struct mutex *lock) { unsigned long *newmap, size; int rc; @@ -989,6 +976,7 @@ static int process_mask_arg(const char *str, kfree(newmap); return rc; } +EXPORT_SYMBOL(ap_parse_mask_str); /* * AP bus attributes. @@ -1049,6 +1037,21 @@ static ssize_t ap_usage_domain_mask_show(struct bus_type *bus, char *buf) static BUS_ATTR_RO(ap_usage_domain_mask); +static ssize_t ap_adapter_mask_show(struct bus_type *bus, char *buf) +{ + if (!ap_configuration) /* QCI not supported */ + return snprintf(buf, PAGE_SIZE, "not supported\n"); + + return snprintf(buf, PAGE_SIZE, + "0x%08x%08x%08x%08x%08x%08x%08x%08x\n", + ap_configuration->apm[0], ap_configuration->apm[1], + ap_configuration->apm[2], ap_configuration->apm[3], + ap_configuration->apm[4], ap_configuration->apm[5], + ap_configuration->apm[6], ap_configuration->apm[7]); +} + +static BUS_ATTR_RO(ap_adapter_mask); + static ssize_t ap_interrupts_show(struct bus_type *bus, char *buf) { return snprintf(buf, PAGE_SIZE, "%d\n", @@ -1161,7 +1164,7 @@ static ssize_t apmask_store(struct bus_type *bus, const char *buf, { int rc; - rc = process_mask_arg(buf, ap_perms.apm, AP_DEVICES, &ap_perms_mutex); + rc = ap_parse_mask_str(buf, ap_perms.apm, AP_DEVICES, &ap_perms_mutex); if (rc) return rc; @@ -1192,7 +1195,7 @@ static ssize_t aqmask_store(struct bus_type *bus, const char *buf, { int rc; - rc = process_mask_arg(buf, ap_perms.aqm, AP_DOMAINS, &ap_perms_mutex); + rc = ap_parse_mask_str(buf, ap_perms.aqm, AP_DOMAINS, &ap_perms_mutex); if (rc) return rc; @@ -1207,6 +1210,7 @@ static struct bus_attribute *const ap_bus_attrs[] = { &bus_attr_ap_domain, &bus_attr_ap_control_domain_mask, &bus_attr_ap_usage_domain_mask, + &bus_attr_ap_adapter_mask, &bus_attr_config_time, &bus_attr_poll_thread, &bus_attr_ap_interrupts, @@ -1218,11 +1222,10 @@ static struct bus_attribute *const ap_bus_attrs[] = { }; /** - * ap_select_domain(): Select an AP domain. - * - * Pick one of the 16 AP domains. + * ap_select_domain(): Select an AP domain if possible and we haven't + * already done so before. */ -static int ap_select_domain(void) +static void ap_select_domain(void) { int count, max_count, best_domain; struct ap_queue_status status; @@ -1237,7 +1240,7 @@ static int ap_select_domain(void) if (ap_domain_index >= 0) { /* Domain has already been selected. */ spin_unlock_bh(&ap_domain_lock); - return 0; + return; } best_domain = -1; max_count = 0; @@ -1264,11 +1267,8 @@ static int ap_select_domain(void) if (best_domain >= 0) { ap_domain_index = best_domain; AP_DBF(DBF_DEBUG, "new ap_domain_index=%d\n", ap_domain_index); - spin_unlock_bh(&ap_domain_lock); - return 0; } spin_unlock_bh(&ap_domain_lock); - return -ENODEV; } /* @@ -1346,8 +1346,7 @@ static void ap_scan_bus(struct work_struct *unused) AP_DBF(DBF_DEBUG, "%s running\n", __func__); ap_query_configuration(ap_configuration); - if (ap_select_domain() != 0) - goto out; + ap_select_domain(); for (id = 0; id < AP_DEVICES; id++) { /* check if device is registered */ @@ -1467,12 +1466,11 @@ static void ap_scan_bus(struct work_struct *unused) } } /* end device loop */ - if (defdomdevs < 1) + if (ap_domain_index >= 0 && defdomdevs < 1) AP_DBF(DBF_INFO, "no queue device with default domain %d available\n", ap_domain_index); -out: mod_timer(&ap_config_timer, jiffies + ap_config_time * HZ); } @@ -1496,21 +1494,22 @@ static int __init ap_debug_init(void) static void __init ap_perms_init(void) { /* all resources useable if no kernel parameter string given */ + memset(&ap_perms.ioctlm, 0xFF, sizeof(ap_perms.ioctlm)); memset(&ap_perms.apm, 0xFF, sizeof(ap_perms.apm)); memset(&ap_perms.aqm, 0xFF, sizeof(ap_perms.aqm)); /* apm kernel parameter string */ if (apm_str) { memset(&ap_perms.apm, 0, sizeof(ap_perms.apm)); - process_mask_arg(apm_str, ap_perms.apm, AP_DEVICES, - &ap_perms_mutex); + ap_parse_mask_str(apm_str, ap_perms.apm, AP_DEVICES, + &ap_perms_mutex); } /* aqm kernel parameter string */ if (aqm_str) { memset(&ap_perms.aqm, 0, sizeof(ap_perms.aqm)); - process_mask_arg(aqm_str, ap_perms.aqm, AP_DOMAINS, - &ap_perms_mutex); + ap_parse_mask_str(aqm_str, ap_perms.aqm, AP_DOMAINS, + &ap_perms_mutex); } } @@ -1533,7 +1532,7 @@ static int __init ap_module_init(void) return -ENODEV; } - /* set up the AP permissions (ap and aq masks) */ + /* set up the AP permissions (ioctls, ap and aq masks) */ ap_perms_init(); /* Get AP configuration data if available */ diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h index 5246cd8c16a6..3eed1b36c876 100644 --- a/drivers/s390/crypto/ap_bus.h +++ b/drivers/s390/crypto/ap_bus.h @@ -20,6 +20,7 @@ #define AP_DEVICES 256 /* Number of AP devices. */ #define AP_DOMAINS 256 /* Number of AP domains. */ +#define AP_IOCTLS 256 /* Number of ioctls. */ #define AP_RESET_TIMEOUT (HZ*0.7) /* Time in ticks for reset timeouts. */ #define AP_CONFIG_TIME 30 /* Time in seconds between AP bus rescans. */ #define AP_POLL_TIME 1 /* Time in ticks between receive polls. */ @@ -257,6 +258,14 @@ void ap_queue_resume(struct ap_device *ap_dev); struct ap_card *ap_card_create(int id, int queue_depth, int raw_device_type, int comp_device_type, unsigned int functions); +struct ap_perms { + unsigned long ioctlm[BITS_TO_LONGS(AP_IOCTLS)]; + unsigned long apm[BITS_TO_LONGS(AP_DEVICES)]; + unsigned long aqm[BITS_TO_LONGS(AP_DOMAINS)]; +}; +extern struct ap_perms ap_perms; +extern struct mutex ap_perms_mutex; + /* * check APQN for owned/reserved by ap bus and default driver(s). * Checks if this APQN is or will be in use by the ap bus @@ -280,4 +289,20 @@ int ap_owned_by_def_drv(int card, int queue); int ap_apqn_in_matrix_owned_by_def_drv(unsigned long *apm, unsigned long *aqm); +/* + * ap_parse_mask_str() - helper function to parse a bitmap string + * and clear/set the bits in the bitmap accordingly. The string may be + * given as absolute value, a hex string like 0x1F2E3D4C5B6A" simple + * overwriting the current content of the bitmap. Or as relative string + * like "+1-16,-32,-0x40,+128" where only single bits or ranges of + * bits are cleared or set. Distinction is done based on the very + * first character which may be '+' or '-' for the relative string + * and othewise assume to be an absolute value string. If parsing fails + * a negative errno value is returned. All arguments and bitmaps are + * big endian order. + */ +int ap_parse_mask_str(const char *str, + unsigned long *bitmap, int bits, + struct mutex *lock); + #endif /* _AP_BUS_H_ */ diff --git a/drivers/s390/crypto/pkey_api.c b/drivers/s390/crypto/pkey_api.c index 1b4001e0285f..2f92bbed4bf6 100644 --- a/drivers/s390/crypto/pkey_api.c +++ b/drivers/s390/crypto/pkey_api.c @@ -16,9 +16,12 @@ #include <linux/slab.h> #include <linux/kallsyms.h> #include <linux/debugfs.h> +#include <linux/random.h> +#include <linux/cpufeature.h> #include <asm/zcrypt.h> #include <asm/cpacf.h> #include <asm/pkey.h> +#include <crypto/aes.h> #include "zcrypt_api.h" @@ -32,6 +35,9 @@ MODULE_DESCRIPTION("s390 protected key interface"); /* Size of vardata block used for some of the cca requests/replies */ #define VARDATASIZE 4096 +/* mask of available pckmo subfunctions, fetched once at module init */ +static cpacf_mask_t pckmo_functions; + /* * debug feature data and functions */ @@ -55,6 +61,24 @@ static void __exit pkey_debug_exit(void) debug_unregister(debug_info); } +/* Key token types */ +#define TOKTYPE_NON_CCA 0x00 /* Non-CCA key token */ +#define TOKTYPE_CCA_INTERNAL 0x01 /* CCA internal key token */ + +/* For TOKTYPE_NON_CCA: */ +#define TOKVER_PROTECTED_KEY 0x01 /* Protected key token */ + +/* For TOKTYPE_CCA_INTERNAL: */ +#define TOKVER_CCA_AES 0x04 /* CCA AES key token */ + +/* header part of a key token */ +struct keytoken_header { + u8 type; /* one of the TOKTYPE values */ + u8 res0[3]; + u8 version; /* one of the TOKVER values */ + u8 res1[3]; +} __packed; + /* inside view of a secure key token (only type 0x01 version 0x04) */ struct secaeskeytoken { u8 type; /* 0x01 for internal key token */ @@ -71,6 +95,17 @@ struct secaeskeytoken { u8 tvv[4]; /* token validation value */ } __packed; +/* inside view of a protected key token (only type 0x00 version 0x01) */ +struct protaeskeytoken { + u8 type; /* 0x00 for PAES specific key tokens */ + u8 res0[3]; + u8 version; /* should be 0x01 for protected AES key token */ + u8 res1[3]; + u32 keytype; /* key type, one of the PKEY_KEYTYPE values */ + u32 len; /* bytes actually stored in protkey[] */ + u8 protkey[MAXPROTKEYSIZE]; /* the protected key blob */ +} __packed; + /* * Simple check if the token is a valid CCA secure AES key * token. If keybitsize is given, the bitsize of the key is @@ -80,16 +115,16 @@ static int check_secaeskeytoken(const u8 *token, int keybitsize) { struct secaeskeytoken *t = (struct secaeskeytoken *) token; - if (t->type != 0x01) { + if (t->type != TOKTYPE_CCA_INTERNAL) { DEBUG_ERR( - "%s secure token check failed, type mismatch 0x%02x != 0x01\n", - __func__, (int) t->type); + "%s secure token check failed, type mismatch 0x%02x != 0x%02x\n", + __func__, (int) t->type, TOKTYPE_CCA_INTERNAL); return -EINVAL; } - if (t->version != 0x04) { + if (t->version != TOKVER_CCA_AES) { DEBUG_ERR( - "%s secure token check failed, version mismatch 0x%02x != 0x04\n", - __func__, (int) t->version); + "%s secure token check failed, version mismatch 0x%02x != 0x%02x\n", + __func__, (int) t->version, TOKVER_CCA_AES); return -EINVAL; } if (keybitsize > 0 && t->bitsize != keybitsize) { @@ -647,6 +682,16 @@ int pkey_clr2protkey(u32 keytype, return -EINVAL; } + /* + * Check if the needed pckmo subfunction is available. + * These subfunctions can be enabled/disabled by customers + * in the LPAR profile or may even change on the fly. + */ + if (!cpacf_test_func(&pckmo_functions, fc)) { + DEBUG_ERR("%s pckmo functions not available\n", __func__); + return -EOPNOTSUPP; + } + /* prepare param block */ memset(paramblock, 0, sizeof(paramblock)); memcpy(paramblock, clrkey->clrkey, keysize); @@ -1052,6 +1097,166 @@ out: EXPORT_SYMBOL(pkey_verifykey); /* + * Generate a random protected key + */ +int pkey_genprotkey(__u32 keytype, struct pkey_protkey *protkey) +{ + struct pkey_clrkey clrkey; + int keysize; + int rc; + + switch (keytype) { + case PKEY_KEYTYPE_AES_128: + keysize = 16; + break; + case PKEY_KEYTYPE_AES_192: + keysize = 24; + break; + case PKEY_KEYTYPE_AES_256: + keysize = 32; + break; + default: + DEBUG_ERR("%s unknown/unsupported keytype %d\n", __func__, + keytype); + return -EINVAL; + } + + /* generate a dummy random clear key */ + get_random_bytes(clrkey.clrkey, keysize); + + /* convert it to a dummy protected key */ + rc = pkey_clr2protkey(keytype, &clrkey, protkey); + if (rc) + return rc; + + /* replace the key part of the protected key with random bytes */ + get_random_bytes(protkey->protkey, keysize); + + return 0; +} +EXPORT_SYMBOL(pkey_genprotkey); + +/* + * Verify if a protected key is still valid + */ +int pkey_verifyprotkey(const struct pkey_protkey *protkey) +{ + unsigned long fc; + struct { + u8 iv[AES_BLOCK_SIZE]; + u8 key[MAXPROTKEYSIZE]; + } param; + u8 null_msg[AES_BLOCK_SIZE]; + u8 dest_buf[AES_BLOCK_SIZE]; + unsigned int k; + + switch (protkey->type) { + case PKEY_KEYTYPE_AES_128: + fc = CPACF_KMC_PAES_128; + break; + case PKEY_KEYTYPE_AES_192: + fc = CPACF_KMC_PAES_192; + break; + case PKEY_KEYTYPE_AES_256: + fc = CPACF_KMC_PAES_256; + break; + default: + DEBUG_ERR("%s unknown/unsupported keytype %d\n", __func__, + protkey->type); + return -EINVAL; + } + + memset(null_msg, 0, sizeof(null_msg)); + + memset(param.iv, 0, sizeof(param.iv)); + memcpy(param.key, protkey->protkey, sizeof(param.key)); + + k = cpacf_kmc(fc | CPACF_ENCRYPT, ¶m, null_msg, dest_buf, + sizeof(null_msg)); + if (k != sizeof(null_msg)) { + DEBUG_ERR("%s protected key is not valid\n", __func__); + return -EKEYREJECTED; + } + + return 0; +} +EXPORT_SYMBOL(pkey_verifyprotkey); + +/* + * Transform a non-CCA key token into a protected key + */ +static int pkey_nonccatok2pkey(const __u8 *key, __u32 keylen, + struct pkey_protkey *protkey) +{ + struct keytoken_header *hdr = (struct keytoken_header *)key; + struct protaeskeytoken *t; + + switch (hdr->version) { + case TOKVER_PROTECTED_KEY: + if (keylen != sizeof(struct protaeskeytoken)) + return -EINVAL; + + t = (struct protaeskeytoken *)key; + protkey->len = t->len; + protkey->type = t->keytype; + memcpy(protkey->protkey, t->protkey, + sizeof(protkey->protkey)); + + return pkey_verifyprotkey(protkey); + default: + DEBUG_ERR("%s unknown/unsupported non-CCA token version %d\n", + __func__, hdr->version); + return -EINVAL; + } +} + +/* + * Transform a CCA internal key token into a protected key + */ +static int pkey_ccainttok2pkey(const __u8 *key, __u32 keylen, + struct pkey_protkey *protkey) +{ + struct keytoken_header *hdr = (struct keytoken_header *)key; + + switch (hdr->version) { + case TOKVER_CCA_AES: + if (keylen != sizeof(struct secaeskeytoken)) + return -EINVAL; + + return pkey_skey2pkey((struct pkey_seckey *)key, + protkey); + default: + DEBUG_ERR("%s unknown/unsupported CCA internal token version %d\n", + __func__, hdr->version); + return -EINVAL; + } +} + +/* + * Transform a key blob (of any type) into a protected key + */ +int pkey_keyblob2pkey(const __u8 *key, __u32 keylen, + struct pkey_protkey *protkey) +{ + struct keytoken_header *hdr = (struct keytoken_header *)key; + + if (keylen < sizeof(struct keytoken_header)) + return -EINVAL; + + switch (hdr->type) { + case TOKTYPE_NON_CCA: + return pkey_nonccatok2pkey(key, keylen, protkey); + case TOKTYPE_CCA_INTERNAL: + return pkey_ccainttok2pkey(key, keylen, protkey); + default: + DEBUG_ERR("%s unknown/unsupported blob type %d\n", __func__, + hdr->type); + return -EINVAL; + } +} +EXPORT_SYMBOL(pkey_keyblob2pkey); + +/* * File io functions */ @@ -1167,6 +1372,58 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd, return -EFAULT; break; } + case PKEY_GENPROTK: { + struct pkey_genprotk __user *ugp = (void __user *) arg; + struct pkey_genprotk kgp; + + if (copy_from_user(&kgp, ugp, sizeof(kgp))) + return -EFAULT; + rc = pkey_genprotkey(kgp.keytype, &kgp.protkey); + DEBUG_DBG("%s pkey_genprotkey()=%d\n", __func__, rc); + if (rc) + break; + if (copy_to_user(ugp, &kgp, sizeof(kgp))) + return -EFAULT; + break; + } + case PKEY_VERIFYPROTK: { + struct pkey_verifyprotk __user *uvp = (void __user *) arg; + struct pkey_verifyprotk kvp; + + if (copy_from_user(&kvp, uvp, sizeof(kvp))) + return -EFAULT; + rc = pkey_verifyprotkey(&kvp.protkey); + DEBUG_DBG("%s pkey_verifyprotkey()=%d\n", __func__, rc); + break; + } + case PKEY_KBLOB2PROTK: { + struct pkey_kblob2pkey __user *utp = (void __user *) arg; + struct pkey_kblob2pkey ktp; + __u8 __user *ukey; + __u8 *kkey; + + if (copy_from_user(&ktp, utp, sizeof(ktp))) + return -EFAULT; + if (ktp.keylen < MINKEYBLOBSIZE || + ktp.keylen > MAXKEYBLOBSIZE) + return -EINVAL; + ukey = ktp.key; + kkey = kmalloc(ktp.keylen, GFP_KERNEL); + if (kkey == NULL) + return -ENOMEM; + if (copy_from_user(kkey, ukey, ktp.keylen)) { + kfree(kkey); + return -EFAULT; + } + rc = pkey_keyblob2pkey(kkey, ktp.keylen, &ktp.protkey); + DEBUG_DBG("%s pkey_keyblob2pkey()=%d\n", __func__, rc); + kfree(kkey); + if (rc) + break; + if (copy_to_user(utp, &ktp, sizeof(ktp))) + return -EFAULT; + break; + } default: /* unknown/unsupported ioctl cmd */ return -ENOTTY; @@ -1178,6 +1435,236 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd, /* * Sysfs and file io operations */ + +/* + * Sysfs attribute read function for all protected key binary attributes. + * The implementation can not deal with partial reads, because a new random + * protected key blob is generated with each read. In case of partial reads + * (i.e. off != 0 or count < key blob size) -EINVAL is returned. + */ +static ssize_t pkey_protkey_aes_attr_read(u32 keytype, bool is_xts, char *buf, + loff_t off, size_t count) +{ + struct protaeskeytoken protkeytoken; + struct pkey_protkey protkey; + int rc; + + if (off != 0 || count < sizeof(protkeytoken)) + return -EINVAL; + if (is_xts) + if (count < 2 * sizeof(protkeytoken)) + return -EINVAL; + + memset(&protkeytoken, 0, sizeof(protkeytoken)); + protkeytoken.type = TOKTYPE_NON_CCA; + protkeytoken.version = TOKVER_PROTECTED_KEY; + protkeytoken.keytype = keytype; + + rc = pkey_genprotkey(protkeytoken.keytype, &protkey); + if (rc) + return rc; + + protkeytoken.len = protkey.len; + memcpy(&protkeytoken.protkey, &protkey.protkey, protkey.len); + + memcpy(buf, &protkeytoken, sizeof(protkeytoken)); + + if (is_xts) { + rc = pkey_genprotkey(protkeytoken.keytype, &protkey); + if (rc) + return rc; + + protkeytoken.len = protkey.len; + memcpy(&protkeytoken.protkey, &protkey.protkey, protkey.len); + + memcpy(buf + sizeof(protkeytoken), &protkeytoken, + sizeof(protkeytoken)); + + return 2 * sizeof(protkeytoken); + } + + return sizeof(protkeytoken); +} + +static ssize_t protkey_aes_128_read(struct file *filp, + struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, + size_t count) +{ + return pkey_protkey_aes_attr_read(PKEY_KEYTYPE_AES_128, false, buf, + off, count); +} + +static ssize_t protkey_aes_192_read(struct file *filp, + struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, + size_t count) +{ + return pkey_protkey_aes_attr_read(PKEY_KEYTYPE_AES_192, false, buf, + off, count); +} + +static ssize_t protkey_aes_256_read(struct file *filp, + struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, + size_t count) +{ + return pkey_protkey_aes_attr_read(PKEY_KEYTYPE_AES_256, false, buf, + off, count); +} + +static ssize_t protkey_aes_128_xts_read(struct file *filp, + struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, + size_t count) +{ + return pkey_protkey_aes_attr_read(PKEY_KEYTYPE_AES_128, true, buf, + off, count); +} + +static ssize_t protkey_aes_256_xts_read(struct file *filp, + struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, + size_t count) +{ + return pkey_protkey_aes_attr_read(PKEY_KEYTYPE_AES_256, true, buf, + off, count); +} + +static BIN_ATTR_RO(protkey_aes_128, sizeof(struct protaeskeytoken)); +static BIN_ATTR_RO(protkey_aes_192, sizeof(struct protaeskeytoken)); +static BIN_ATTR_RO(protkey_aes_256, sizeof(struct protaeskeytoken)); +static BIN_ATTR_RO(protkey_aes_128_xts, 2 * sizeof(struct protaeskeytoken)); +static BIN_ATTR_RO(protkey_aes_256_xts, 2 * sizeof(struct protaeskeytoken)); + +static struct bin_attribute *protkey_attrs[] = { + &bin_attr_protkey_aes_128, + &bin_attr_protkey_aes_192, + &bin_attr_protkey_aes_256, + &bin_attr_protkey_aes_128_xts, + &bin_attr_protkey_aes_256_xts, + NULL +}; + +static struct attribute_group protkey_attr_group = { + .name = "protkey", + .bin_attrs = protkey_attrs, +}; + +/* + * Sysfs attribute read function for all secure key ccadata binary attributes. + * The implementation can not deal with partial reads, because a new random + * protected key blob is generated with each read. In case of partial reads + * (i.e. off != 0 or count < key blob size) -EINVAL is returned. + */ +static ssize_t pkey_ccadata_aes_attr_read(u32 keytype, bool is_xts, char *buf, + loff_t off, size_t count) +{ + int rc; + + if (off != 0 || count < sizeof(struct secaeskeytoken)) + return -EINVAL; + if (is_xts) + if (count < 2 * sizeof(struct secaeskeytoken)) + return -EINVAL; + + rc = pkey_genseckey(-1, -1, keytype, (struct pkey_seckey *)buf); + if (rc) + return rc; + + if (is_xts) { + buf += sizeof(struct pkey_seckey); + rc = pkey_genseckey(-1, -1, keytype, (struct pkey_seckey *)buf); + if (rc) + return rc; + + return 2 * sizeof(struct secaeskeytoken); + } + + return sizeof(struct secaeskeytoken); +} + +static ssize_t ccadata_aes_128_read(struct file *filp, + struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, + size_t count) +{ + return pkey_ccadata_aes_attr_read(PKEY_KEYTYPE_AES_128, false, buf, + off, count); +} + +static ssize_t ccadata_aes_192_read(struct file *filp, + struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, + size_t count) +{ + return pkey_ccadata_aes_attr_read(PKEY_KEYTYPE_AES_192, false, buf, + off, count); +} + +static ssize_t ccadata_aes_256_read(struct file *filp, + struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, + size_t count) +{ + return pkey_ccadata_aes_attr_read(PKEY_KEYTYPE_AES_256, false, buf, + off, count); +} + +static ssize_t ccadata_aes_128_xts_read(struct file *filp, + struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, + size_t count) +{ + return pkey_ccadata_aes_attr_read(PKEY_KEYTYPE_AES_128, true, buf, + off, count); +} + +static ssize_t ccadata_aes_256_xts_read(struct file *filp, + struct kobject *kobj, + struct bin_attribute *attr, + char *buf, loff_t off, + size_t count) +{ + return pkey_ccadata_aes_attr_read(PKEY_KEYTYPE_AES_256, true, buf, + off, count); +} + +static BIN_ATTR_RO(ccadata_aes_128, sizeof(struct secaeskeytoken)); +static BIN_ATTR_RO(ccadata_aes_192, sizeof(struct secaeskeytoken)); +static BIN_ATTR_RO(ccadata_aes_256, sizeof(struct secaeskeytoken)); +static BIN_ATTR_RO(ccadata_aes_128_xts, 2 * sizeof(struct secaeskeytoken)); +static BIN_ATTR_RO(ccadata_aes_256_xts, 2 * sizeof(struct secaeskeytoken)); + +static struct bin_attribute *ccadata_attrs[] = { + &bin_attr_ccadata_aes_128, + &bin_attr_ccadata_aes_192, + &bin_attr_ccadata_aes_256, + &bin_attr_ccadata_aes_128_xts, + &bin_attr_ccadata_aes_256_xts, + NULL +}; + +static struct attribute_group ccadata_attr_group = { + .name = "ccadata", + .bin_attrs = ccadata_attrs, +}; + +static const struct attribute_group *pkey_attr_groups[] = { + &protkey_attr_group, + &ccadata_attr_group, + NULL, +}; + static const struct file_operations pkey_fops = { .owner = THIS_MODULE, .open = nonseekable_open, @@ -1190,6 +1677,7 @@ static struct miscdevice pkey_dev = { .minor = MISC_DYNAMIC_MINOR, .mode = 0666, .fops = &pkey_fops, + .groups = pkey_attr_groups, }; /* @@ -1197,14 +1685,23 @@ static struct miscdevice pkey_dev = { */ static int __init pkey_init(void) { - cpacf_mask_t pckmo_functions; + cpacf_mask_t kmc_functions; - /* check for pckmo instructions available */ + /* + * The pckmo instruction should be available - even if we don't + * actually invoke it. This instruction comes with MSA 3 which + * is also the minimum level for the kmc instructions which + * are able to work with protected keys. + */ if (!cpacf_query(CPACF_PCKMO, &pckmo_functions)) return -EOPNOTSUPP; - if (!cpacf_test_func(&pckmo_functions, CPACF_PCKMO_ENC_AES_128_KEY) || - !cpacf_test_func(&pckmo_functions, CPACF_PCKMO_ENC_AES_192_KEY) || - !cpacf_test_func(&pckmo_functions, CPACF_PCKMO_ENC_AES_256_KEY)) + + /* check for kmc instructions available */ + if (!cpacf_query(CPACF_KMC, &kmc_functions)) + return -EOPNOTSUPP; + if (!cpacf_test_func(&kmc_functions, CPACF_KMC_PAES_128) || + !cpacf_test_func(&kmc_functions, CPACF_KMC_PAES_192) || + !cpacf_test_func(&kmc_functions, CPACF_KMC_PAES_256)) return -EOPNOTSUPP; pkey_debug_init(); @@ -1222,5 +1719,5 @@ static void __exit pkey_exit(void) pkey_debug_exit(); } -module_init(pkey_init); +module_cpu_feature_match(MSA, pkey_init); module_exit(pkey_exit); diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index e6854127b434..eb93c2d27d0a 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -1,8 +1,6 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * zcrypt 2.1.0 - * - * Copyright IBM Corp. 2001, 2012 + * Copyright IBM Corp. 2001, 2018 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) * Cornelia Huck <cornelia.huck@de.ibm.com> @@ -11,6 +9,7 @@ * Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com> * Ralph Wuerthner <rwuerthn@de.ibm.com> * MSGTYPE restruct: Holger Dengler <hd@linux.vnet.ibm.com> + * Multiple device nodes: Harald Freudenberger <freude@linux.ibm.com> */ #include <linux/module.h> @@ -24,6 +23,8 @@ #include <linux/uaccess.h> #include <linux/hw_random.h> #include <linux/debugfs.h> +#include <linux/cdev.h> +#include <linux/ctype.h> #include <asm/debug.h> #define CREATE_TRACE_POINTS @@ -108,6 +109,375 @@ struct zcrypt_ops *zcrypt_msgtype(unsigned char *name, int variant) } EXPORT_SYMBOL(zcrypt_msgtype); +/* + * Multi device nodes extension functions. + */ + +#ifdef CONFIG_ZCRYPT_MULTIDEVNODES + +struct zcdn_device; + +static struct class *zcrypt_class; +static dev_t zcrypt_devt; +static struct cdev zcrypt_cdev; + +struct zcdn_device { + struct device device; + struct ap_perms perms; +}; + +#define to_zcdn_dev(x) container_of((x), struct zcdn_device, device) + +#define ZCDN_MAX_NAME 32 + +static int zcdn_create(const char *name); +static int zcdn_destroy(const char *name); + +/* helper function, matches the name for find_zcdndev_by_name() */ +static int __match_zcdn_name(struct device *dev, const void *data) +{ + return strcmp(dev_name(dev), (const char *)data) == 0; +} + +/* helper function, matches the devt value for find_zcdndev_by_devt() */ +static int __match_zcdn_devt(struct device *dev, const void *data) +{ + return dev->devt == *((dev_t *) data); +} + +/* + * Find zcdn device by name. + * Returns reference to the zcdn device which needs to be released + * with put_device() after use. + */ +static inline struct zcdn_device *find_zcdndev_by_name(const char *name) +{ + struct device *dev = + class_find_device(zcrypt_class, NULL, + (void *) name, + __match_zcdn_name); + + return dev ? to_zcdn_dev(dev) : NULL; +} + +/* + * Find zcdn device by devt value. + * Returns reference to the zcdn device which needs to be released + * with put_device() after use. + */ +static inline struct zcdn_device *find_zcdndev_by_devt(dev_t devt) +{ + struct device *dev = + class_find_device(zcrypt_class, NULL, + (void *) &devt, + __match_zcdn_devt); + + return dev ? to_zcdn_dev(dev) : NULL; +} + +static ssize_t ioctlmask_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int i, rc; + struct zcdn_device *zcdndev = to_zcdn_dev(dev); + + if (mutex_lock_interruptible(&ap_perms_mutex)) + return -ERESTARTSYS; + + buf[0] = '0'; + buf[1] = 'x'; + for (i = 0; i < sizeof(zcdndev->perms.ioctlm) / sizeof(long); i++) + snprintf(buf + 2 + 2 * i * sizeof(long), + PAGE_SIZE - 2 - 2 * i * sizeof(long), + "%016lx", zcdndev->perms.ioctlm[i]); + buf[2 + 2 * i * sizeof(long)] = '\n'; + buf[2 + 2 * i * sizeof(long) + 1] = '\0'; + rc = 2 + 2 * i * sizeof(long) + 1; + + mutex_unlock(&ap_perms_mutex); + + return rc; +} + +static ssize_t ioctlmask_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int rc; + struct zcdn_device *zcdndev = to_zcdn_dev(dev); + + rc = ap_parse_mask_str(buf, zcdndev->perms.ioctlm, + AP_IOCTLS, &ap_perms_mutex); + if (rc) + return rc; + + return count; +} + +static DEVICE_ATTR_RW(ioctlmask); + +static ssize_t apmask_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int i, rc; + struct zcdn_device *zcdndev = to_zcdn_dev(dev); + + if (mutex_lock_interruptible(&ap_perms_mutex)) + return -ERESTARTSYS; + + buf[0] = '0'; + buf[1] = 'x'; + for (i = 0; i < sizeof(zcdndev->perms.apm) / sizeof(long); i++) + snprintf(buf + 2 + 2 * i * sizeof(long), + PAGE_SIZE - 2 - 2 * i * sizeof(long), + "%016lx", zcdndev->perms.apm[i]); + buf[2 + 2 * i * sizeof(long)] = '\n'; + buf[2 + 2 * i * sizeof(long) + 1] = '\0'; + rc = 2 + 2 * i * sizeof(long) + 1; + + mutex_unlock(&ap_perms_mutex); + + return rc; +} + +static ssize_t apmask_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int rc; + struct zcdn_device *zcdndev = to_zcdn_dev(dev); + + rc = ap_parse_mask_str(buf, zcdndev->perms.apm, + AP_DEVICES, &ap_perms_mutex); + if (rc) + return rc; + + return count; +} + +static DEVICE_ATTR_RW(apmask); + +static ssize_t aqmask_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int i, rc; + struct zcdn_device *zcdndev = to_zcdn_dev(dev); + + if (mutex_lock_interruptible(&ap_perms_mutex)) + return -ERESTARTSYS; + + buf[0] = '0'; + buf[1] = 'x'; + for (i = 0; i < sizeof(zcdndev->perms.aqm) / sizeof(long); i++) + snprintf(buf + 2 + 2 * i * sizeof(long), + PAGE_SIZE - 2 - 2 * i * sizeof(long), + "%016lx", zcdndev->perms.aqm[i]); + buf[2 + 2 * i * sizeof(long)] = '\n'; + buf[2 + 2 * i * sizeof(long) + 1] = '\0'; + rc = 2 + 2 * i * sizeof(long) + 1; + + mutex_unlock(&ap_perms_mutex); + + return rc; +} + +static ssize_t aqmask_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int rc; + struct zcdn_device *zcdndev = to_zcdn_dev(dev); + + rc = ap_parse_mask_str(buf, zcdndev->perms.aqm, + AP_DOMAINS, &ap_perms_mutex); + if (rc) + return rc; + + return count; +} + +static DEVICE_ATTR_RW(aqmask); + +static struct attribute *zcdn_dev_attrs[] = { + &dev_attr_ioctlmask.attr, + &dev_attr_apmask.attr, + &dev_attr_aqmask.attr, + NULL +}; + +static struct attribute_group zcdn_dev_attr_group = { + .attrs = zcdn_dev_attrs +}; + +static const struct attribute_group *zcdn_dev_attr_groups[] = { + &zcdn_dev_attr_group, + NULL +}; + +static ssize_t zcdn_create_store(struct class *class, + struct class_attribute *attr, + const char *buf, size_t count) +{ + int rc; + char name[ZCDN_MAX_NAME]; + + strncpy(name, skip_spaces(buf), sizeof(name)); + name[sizeof(name) - 1] = '\0'; + + rc = zcdn_create(strim(name)); + + return rc ? rc : count; +} + +static const struct class_attribute class_attr_zcdn_create = + __ATTR(create, 0600, NULL, zcdn_create_store); + +static ssize_t zcdn_destroy_store(struct class *class, + struct class_attribute *attr, + const char *buf, size_t count) +{ + int rc; + char name[ZCDN_MAX_NAME]; + + strncpy(name, skip_spaces(buf), sizeof(name)); + name[sizeof(name) - 1] = '\0'; + + rc = zcdn_destroy(strim(name)); + + return rc ? rc : count; +} + +static const struct class_attribute class_attr_zcdn_destroy = + __ATTR(destroy, 0600, NULL, zcdn_destroy_store); + +static void zcdn_device_release(struct device *dev) +{ + struct zcdn_device *zcdndev = to_zcdn_dev(dev); + + ZCRYPT_DBF(DBF_INFO, "releasing zcdn device %d:%d\n", + MAJOR(dev->devt), MINOR(dev->devt)); + + kfree(zcdndev); +} + +static int zcdn_create(const char *name) +{ + dev_t devt; + int i, rc = 0; + char nodename[ZCDN_MAX_NAME]; + struct zcdn_device *zcdndev; + + if (mutex_lock_interruptible(&ap_perms_mutex)) + return -ERESTARTSYS; + + /* check if device node with this name already exists */ + if (name[0]) { + zcdndev = find_zcdndev_by_name(name); + if (zcdndev) { + put_device(&zcdndev->device); + rc = -EEXIST; + goto unlockout; + } + } + + /* find an unused minor number */ + for (i = 0; i < ZCRYPT_MAX_MINOR_NODES; i++) { + devt = MKDEV(MAJOR(zcrypt_devt), MINOR(zcrypt_devt) + i); + zcdndev = find_zcdndev_by_devt(devt); + if (zcdndev) + put_device(&zcdndev->device); + else + break; + } + if (i == ZCRYPT_MAX_MINOR_NODES) { + rc = -ENOSPC; + goto unlockout; + } + + /* alloc and prepare a new zcdn device */ + zcdndev = kzalloc(sizeof(*zcdndev), GFP_KERNEL); + if (!zcdndev) { + rc = -ENOMEM; + goto unlockout; + } + zcdndev->device.release = zcdn_device_release; + zcdndev->device.class = zcrypt_class; + zcdndev->device.devt = devt; + zcdndev->device.groups = zcdn_dev_attr_groups; + if (name[0]) + strncpy(nodename, name, sizeof(nodename)); + else + snprintf(nodename, sizeof(nodename), + ZCRYPT_NAME "_%d", (int) MINOR(devt)); + nodename[sizeof(nodename)-1] = '\0'; + if (dev_set_name(&zcdndev->device, nodename)) { + rc = -EINVAL; + goto unlockout; + } + rc = device_register(&zcdndev->device); + if (rc) { + put_device(&zcdndev->device); + goto unlockout; + } + + ZCRYPT_DBF(DBF_INFO, "created zcdn device %d:%d\n", + MAJOR(devt), MINOR(devt)); + +unlockout: + mutex_unlock(&ap_perms_mutex); + return rc; +} + +static int zcdn_destroy(const char *name) +{ + int rc = 0; + struct zcdn_device *zcdndev; + + if (mutex_lock_interruptible(&ap_perms_mutex)) + return -ERESTARTSYS; + + /* try to find this zcdn device */ + zcdndev = find_zcdndev_by_name(name); + if (!zcdndev) { + rc = -ENOENT; + goto unlockout; + } + + /* + * The zcdn device is not hard destroyed. It is subject to + * reference counting and thus just needs to be unregistered. + */ + put_device(&zcdndev->device); + device_unregister(&zcdndev->device); + +unlockout: + mutex_unlock(&ap_perms_mutex); + return rc; +} + +static void zcdn_destroy_all(void) +{ + int i; + dev_t devt; + struct zcdn_device *zcdndev; + + mutex_lock(&ap_perms_mutex); + for (i = 0; i < ZCRYPT_MAX_MINOR_NODES; i++) { + devt = MKDEV(MAJOR(zcrypt_devt), MINOR(zcrypt_devt) + i); + zcdndev = find_zcdndev_by_devt(devt); + if (zcdndev) { + put_device(&zcdndev->device); + device_unregister(&zcdndev->device); + } + } + mutex_unlock(&ap_perms_mutex); +} + +#endif + /** * zcrypt_read (): Not supported beyond zcrypt 1.3.1. * @@ -137,6 +507,23 @@ static ssize_t zcrypt_write(struct file *filp, const char __user *buf, */ static int zcrypt_open(struct inode *inode, struct file *filp) { + struct ap_perms *perms = &ap_perms; + +#ifdef CONFIG_ZCRYPT_MULTIDEVNODES + if (filp->f_inode->i_cdev == &zcrypt_cdev) { + struct zcdn_device *zcdndev; + + if (mutex_lock_interruptible(&ap_perms_mutex)) + return -ERESTARTSYS; + zcdndev = find_zcdndev_by_devt(filp->f_inode->i_rdev); + /* find returns a reference, no get_device() needed */ + mutex_unlock(&ap_perms_mutex); + if (zcdndev) + perms = &zcdndev->perms; + } +#endif + filp->private_data = (void *) perms; + atomic_inc(&zcrypt_open_count); return nonseekable_open(inode, filp); } @@ -148,10 +535,55 @@ static int zcrypt_open(struct inode *inode, struct file *filp) */ static int zcrypt_release(struct inode *inode, struct file *filp) { +#ifdef CONFIG_ZCRYPT_MULTIDEVNODES + if (filp->f_inode->i_cdev == &zcrypt_cdev) { + struct zcdn_device *zcdndev; + + if (mutex_lock_interruptible(&ap_perms_mutex)) + return -ERESTARTSYS; + zcdndev = find_zcdndev_by_devt(filp->f_inode->i_rdev); + mutex_unlock(&ap_perms_mutex); + if (zcdndev) { + /* 2 puts here: one for find, one for open */ + put_device(&zcdndev->device); + put_device(&zcdndev->device); + } + } +#endif + atomic_dec(&zcrypt_open_count); return 0; } +static inline int zcrypt_check_ioctl(struct ap_perms *perms, + unsigned int cmd) +{ + int rc = -EPERM; + int ioctlnr = (cmd & _IOC_NRMASK) >> _IOC_NRSHIFT; + + if (ioctlnr > 0 && ioctlnr < AP_IOCTLS) { + if (test_bit_inv(ioctlnr, perms->ioctlm)) + rc = 0; + } + + if (rc) + ZCRYPT_DBF(DBF_WARN, + "ioctl check failed: ioctlnr=0x%04x rc=%d\n", + ioctlnr, rc); + + return rc; +} + +static inline bool zcrypt_check_card(struct ap_perms *perms, int card) +{ + return test_bit_inv(card, perms->apm) ? true : false; +} + +static inline bool zcrypt_check_queue(struct ap_perms *perms, int queue) +{ + return test_bit_inv(queue, perms->aqm) ? true : false; +} + static inline struct zcrypt_queue *zcrypt_pick_queue(struct zcrypt_card *zc, struct zcrypt_queue *zq, unsigned int weight) @@ -213,7 +645,8 @@ static inline bool zcrypt_queue_compare(struct zcrypt_queue *zq, /* * zcrypt ioctls. */ -static long zcrypt_rsa_modexpo(struct ica_rsa_modexpo *mex) +static long zcrypt_rsa_modexpo(struct ap_perms *perms, + struct ica_rsa_modexpo *mex) { struct zcrypt_card *zc, *pref_zc; struct zcrypt_queue *zq, *pref_zq; @@ -250,6 +683,9 @@ static long zcrypt_rsa_modexpo(struct ica_rsa_modexpo *mex) if (zc->min_mod_size > mex->inputdatalength || zc->max_mod_size < mex->inputdatalength) continue; + /* check if device node has admission for this card */ + if (!zcrypt_check_card(perms, zc->card->id)) + continue; /* get weight index of the card device */ weight = zc->speed_rating[func_code]; if (zcrypt_card_compare(zc, pref_zc, weight, pref_weight)) @@ -258,6 +694,10 @@ static long zcrypt_rsa_modexpo(struct ica_rsa_modexpo *mex) /* check if device is online and eligible */ if (!zq->online || !zq->ops->rsa_modexpo) continue; + /* check if device node has admission for this queue */ + if (!zcrypt_check_queue(perms, + AP_QID_QUEUE(zq->queue->qid))) + continue; if (zcrypt_queue_compare(zq, pref_zq, weight, pref_weight)) continue; @@ -287,7 +727,8 @@ out: return rc; } -static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt) +static long zcrypt_rsa_crt(struct ap_perms *perms, + struct ica_rsa_modexpo_crt *crt) { struct zcrypt_card *zc, *pref_zc; struct zcrypt_queue *zq, *pref_zq; @@ -324,6 +765,9 @@ static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt) if (zc->min_mod_size > crt->inputdatalength || zc->max_mod_size < crt->inputdatalength) continue; + /* check if device node has admission for this card */ + if (!zcrypt_check_card(perms, zc->card->id)) + continue; /* get weight index of the card device */ weight = zc->speed_rating[func_code]; if (zcrypt_card_compare(zc, pref_zc, weight, pref_weight)) @@ -332,6 +776,10 @@ static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt) /* check if device is online and eligible */ if (!zq->online || !zq->ops->rsa_modexpo_crt) continue; + /* check if device node has admission for this queue */ + if (!zcrypt_check_queue(perms, + AP_QID_QUEUE(zq->queue->qid))) + continue; if (zcrypt_queue_compare(zq, pref_zq, weight, pref_weight)) continue; @@ -361,7 +809,8 @@ out: return rc; } -long zcrypt_send_cprb(struct ica_xcRB *xcRB) +static long _zcrypt_send_cprb(struct ap_perms *perms, + struct ica_xcRB *xcRB) { struct zcrypt_card *zc, *pref_zc; struct zcrypt_queue *zq, *pref_zq; @@ -373,6 +822,7 @@ long zcrypt_send_cprb(struct ica_xcRB *xcRB) trace_s390_zcrypt_req(xcRB, TB_ZSECSENDCPRB); + xcRB->status = 0; ap_init_message(&ap_msg); rc = get_cprb_fc(xcRB, &ap_msg, &func_code, &domain); if (rc) @@ -389,6 +839,9 @@ long zcrypt_send_cprb(struct ica_xcRB *xcRB) if (xcRB->user_defined != AUTOSELECT && xcRB->user_defined != zc->card->id) continue; + /* check if device node has admission for this card */ + if (!zcrypt_check_card(perms, zc->card->id)) + continue; /* get weight index of the card device */ weight = speed_idx_cca(func_code) * zc->speed_rating[SECKEY]; if (zcrypt_card_compare(zc, pref_zc, weight, pref_weight)) @@ -400,6 +853,10 @@ long zcrypt_send_cprb(struct ica_xcRB *xcRB) ((*domain != (unsigned short) AUTOSELECT) && (*domain != AP_QID_QUEUE(zq->queue->qid)))) continue; + /* check if device node has admission for this queue */ + if (!zcrypt_check_queue(perms, + AP_QID_QUEUE(zq->queue->qid))) + continue; if (zcrypt_queue_compare(zq, pref_zq, weight, pref_weight)) continue; @@ -433,6 +890,11 @@ out: AP_QID_CARD(qid), AP_QID_QUEUE(qid)); return rc; } + +long zcrypt_send_cprb(struct ica_xcRB *xcRB) +{ + return _zcrypt_send_cprb(&ap_perms, xcRB); +} EXPORT_SYMBOL(zcrypt_send_cprb); static bool is_desired_ep11_card(unsigned int dev_id, @@ -459,7 +921,8 @@ static bool is_desired_ep11_queue(unsigned int dev_qid, return false; } -static long zcrypt_send_ep11_cprb(struct ep11_urb *xcrb) +static long zcrypt_send_ep11_cprb(struct ap_perms *perms, + struct ep11_urb *xcrb) { struct zcrypt_card *zc, *pref_zc; struct zcrypt_queue *zq, *pref_zq; @@ -510,6 +973,9 @@ static long zcrypt_send_ep11_cprb(struct ep11_urb *xcrb) if (targets && !is_desired_ep11_card(zc->card->id, target_num, targets)) continue; + /* check if device node has admission for this card */ + if (!zcrypt_check_card(perms, zc->card->id)) + continue; /* get weight index of the card device */ weight = speed_idx_ep11(func_code) * zc->speed_rating[SECKEY]; if (zcrypt_card_compare(zc, pref_zc, weight, pref_weight)) @@ -522,6 +988,10 @@ static long zcrypt_send_ep11_cprb(struct ep11_urb *xcrb) !is_desired_ep11_queue(zq->queue->qid, target_num, targets))) continue; + /* check if device node has admission for this queue */ + if (!zcrypt_check_queue(perms, + AP_QID_QUEUE(zq->queue->qid))) + continue; if (zcrypt_queue_compare(zq, pref_zq, weight, pref_weight)) continue; @@ -788,7 +1258,13 @@ static int zcrypt_requestq_count(void) static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { - int rc = 0; + int rc; + struct ap_perms *perms = + (struct ap_perms *) filp->private_data; + + rc = zcrypt_check_ioctl(perms, cmd); + if (rc) + return rc; switch (cmd) { case ICARSAMODEXPO: { @@ -798,12 +1274,12 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, if (copy_from_user(&mex, umex, sizeof(mex))) return -EFAULT; do { - rc = zcrypt_rsa_modexpo(&mex); + rc = zcrypt_rsa_modexpo(perms, &mex); } while (rc == -EAGAIN); /* on failure: retry once again after a requested rescan */ if ((rc == -ENODEV) && (zcrypt_process_rescan())) do { - rc = zcrypt_rsa_modexpo(&mex); + rc = zcrypt_rsa_modexpo(perms, &mex); } while (rc == -EAGAIN); if (rc) { ZCRYPT_DBF(DBF_DEBUG, "ioctl ICARSAMODEXPO rc=%d\n", rc); @@ -818,12 +1294,12 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, if (copy_from_user(&crt, ucrt, sizeof(crt))) return -EFAULT; do { - rc = zcrypt_rsa_crt(&crt); + rc = zcrypt_rsa_crt(perms, &crt); } while (rc == -EAGAIN); /* on failure: retry once again after a requested rescan */ if ((rc == -ENODEV) && (zcrypt_process_rescan())) do { - rc = zcrypt_rsa_crt(&crt); + rc = zcrypt_rsa_crt(perms, &crt); } while (rc == -EAGAIN); if (rc) { ZCRYPT_DBF(DBF_DEBUG, "ioctl ICARSACRT rc=%d\n", rc); @@ -838,15 +1314,16 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, if (copy_from_user(&xcRB, uxcRB, sizeof(xcRB))) return -EFAULT; do { - rc = zcrypt_send_cprb(&xcRB); + rc = _zcrypt_send_cprb(perms, &xcRB); } while (rc == -EAGAIN); /* on failure: retry once again after a requested rescan */ if ((rc == -ENODEV) && (zcrypt_process_rescan())) do { - rc = zcrypt_send_cprb(&xcRB); + rc = _zcrypt_send_cprb(perms, &xcRB); } while (rc == -EAGAIN); if (rc) - ZCRYPT_DBF(DBF_DEBUG, "ioctl ZSENDCPRB rc=%d\n", rc); + ZCRYPT_DBF(DBF_DEBUG, "ioctl ZSENDCPRB rc=%d status=0x%x\n", + rc, xcRB.status); if (copy_to_user(uxcRB, &xcRB, sizeof(xcRB))) return -EFAULT; return rc; @@ -858,12 +1335,12 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, if (copy_from_user(&xcrb, uxcrb, sizeof(xcrb))) return -EFAULT; do { - rc = zcrypt_send_ep11_cprb(&xcrb); + rc = zcrypt_send_ep11_cprb(perms, &xcrb); } while (rc == -EAGAIN); /* on failure: retry once again after a requested rescan */ if ((rc == -ENODEV) && (zcrypt_process_rescan())) do { - rc = zcrypt_send_ep11_cprb(&xcrb); + rc = zcrypt_send_ep11_cprb(perms, &xcrb); } while (rc == -EAGAIN); if (rc) ZCRYPT_DBF(DBF_DEBUG, "ioctl ZSENDEP11CPRB rc=%d\n", rc); @@ -989,8 +1466,8 @@ struct compat_ica_rsa_modexpo { compat_uptr_t n_modulus; }; -static long trans_modexpo32(struct file *filp, unsigned int cmd, - unsigned long arg) +static long trans_modexpo32(struct ap_perms *perms, struct file *filp, + unsigned int cmd, unsigned long arg) { struct compat_ica_rsa_modexpo __user *umex32 = compat_ptr(arg); struct compat_ica_rsa_modexpo mex32; @@ -1006,12 +1483,12 @@ static long trans_modexpo32(struct file *filp, unsigned int cmd, mex64.b_key = compat_ptr(mex32.b_key); mex64.n_modulus = compat_ptr(mex32.n_modulus); do { - rc = zcrypt_rsa_modexpo(&mex64); + rc = zcrypt_rsa_modexpo(perms, &mex64); } while (rc == -EAGAIN); /* on failure: retry once again after a requested rescan */ if ((rc == -ENODEV) && (zcrypt_process_rescan())) do { - rc = zcrypt_rsa_modexpo(&mex64); + rc = zcrypt_rsa_modexpo(perms, &mex64); } while (rc == -EAGAIN); if (rc) return rc; @@ -1031,8 +1508,8 @@ struct compat_ica_rsa_modexpo_crt { compat_uptr_t u_mult_inv; }; -static long trans_modexpo_crt32(struct file *filp, unsigned int cmd, - unsigned long arg) +static long trans_modexpo_crt32(struct ap_perms *perms, struct file *filp, + unsigned int cmd, unsigned long arg) { struct compat_ica_rsa_modexpo_crt __user *ucrt32 = compat_ptr(arg); struct compat_ica_rsa_modexpo_crt crt32; @@ -1051,12 +1528,12 @@ static long trans_modexpo_crt32(struct file *filp, unsigned int cmd, crt64.nq_prime = compat_ptr(crt32.nq_prime); crt64.u_mult_inv = compat_ptr(crt32.u_mult_inv); do { - rc = zcrypt_rsa_crt(&crt64); + rc = zcrypt_rsa_crt(perms, &crt64); } while (rc == -EAGAIN); /* on failure: retry once again after a requested rescan */ if ((rc == -ENODEV) && (zcrypt_process_rescan())) do { - rc = zcrypt_rsa_crt(&crt64); + rc = zcrypt_rsa_crt(perms, &crt64); } while (rc == -EAGAIN); if (rc) return rc; @@ -1084,8 +1561,8 @@ struct compat_ica_xcRB { unsigned int status; } __packed; -static long trans_xcRB32(struct file *filp, unsigned int cmd, - unsigned long arg) +static long trans_xcRB32(struct ap_perms *perms, struct file *filp, + unsigned int cmd, unsigned long arg) { struct compat_ica_xcRB __user *uxcRB32 = compat_ptr(arg); struct compat_ica_xcRB xcRB32; @@ -1115,12 +1592,12 @@ static long trans_xcRB32(struct file *filp, unsigned int cmd, xcRB64.priority_window = xcRB32.priority_window; xcRB64.status = xcRB32.status; do { - rc = zcrypt_send_cprb(&xcRB64); + rc = _zcrypt_send_cprb(perms, &xcRB64); } while (rc == -EAGAIN); /* on failure: retry once again after a requested rescan */ if ((rc == -ENODEV) && (zcrypt_process_rescan())) do { - rc = zcrypt_send_cprb(&xcRB64); + rc = _zcrypt_send_cprb(perms, &xcRB64); } while (rc == -EAGAIN); xcRB32.reply_control_blk_length = xcRB64.reply_control_blk_length; xcRB32.reply_data_length = xcRB64.reply_data_length; @@ -1133,12 +1610,20 @@ static long trans_xcRB32(struct file *filp, unsigned int cmd, static long zcrypt_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { + int rc; + struct ap_perms *perms = + (struct ap_perms *) filp->private_data; + + rc = zcrypt_check_ioctl(perms, cmd); + if (rc) + return rc; + if (cmd == ICARSAMODEXPO) - return trans_modexpo32(filp, cmd, arg); + return trans_modexpo32(perms, filp, cmd, arg); if (cmd == ICARSACRT) - return trans_modexpo_crt32(filp, cmd, arg); + return trans_modexpo_crt32(perms, filp, cmd, arg); if (cmd == ZSECSENDCPRB) - return trans_xcRB32(filp, cmd, arg); + return trans_xcRB32(perms, filp, cmd, arg); return zcrypt_unlocked_ioctl(filp, cmd, arg); } #endif @@ -1256,6 +1741,67 @@ void zcrypt_debug_exit(void) debug_unregister(zcrypt_dbf_info); } +#ifdef CONFIG_ZCRYPT_MULTIDEVNODES + +static int __init zcdn_init(void) +{ + int rc; + + /* create a new class 'zcrypt' */ + zcrypt_class = class_create(THIS_MODULE, ZCRYPT_NAME); + if (IS_ERR(zcrypt_class)) { + rc = PTR_ERR(zcrypt_class); + goto out_class_create_failed; + } + zcrypt_class->dev_release = zcdn_device_release; + + /* alloc device minor range */ + rc = alloc_chrdev_region(&zcrypt_devt, + 0, ZCRYPT_MAX_MINOR_NODES, + ZCRYPT_NAME); + if (rc) + goto out_alloc_chrdev_failed; + + cdev_init(&zcrypt_cdev, &zcrypt_fops); + zcrypt_cdev.owner = THIS_MODULE; + rc = cdev_add(&zcrypt_cdev, zcrypt_devt, ZCRYPT_MAX_MINOR_NODES); + if (rc) + goto out_cdev_add_failed; + + /* need some class specific sysfs attributes */ + rc = class_create_file(zcrypt_class, &class_attr_zcdn_create); + if (rc) + goto out_class_create_file_1_failed; + rc = class_create_file(zcrypt_class, &class_attr_zcdn_destroy); + if (rc) + goto out_class_create_file_2_failed; + + return 0; + +out_class_create_file_2_failed: + class_remove_file(zcrypt_class, &class_attr_zcdn_create); +out_class_create_file_1_failed: + cdev_del(&zcrypt_cdev); +out_cdev_add_failed: + unregister_chrdev_region(zcrypt_devt, ZCRYPT_MAX_MINOR_NODES); +out_alloc_chrdev_failed: + class_destroy(zcrypt_class); +out_class_create_failed: + return rc; +} + +static void zcdn_exit(void) +{ + class_remove_file(zcrypt_class, &class_attr_zcdn_create); + class_remove_file(zcrypt_class, &class_attr_zcdn_destroy); + zcdn_destroy_all(); + cdev_del(&zcrypt_cdev); + unregister_chrdev_region(zcrypt_devt, ZCRYPT_MAX_MINOR_NODES); + class_destroy(zcrypt_class); +} + +#endif + /** * zcrypt_api_init(): Module initialization. * @@ -1269,15 +1815,27 @@ int __init zcrypt_api_init(void) if (rc) goto out; +#ifdef CONFIG_ZCRYPT_MULTIDEVNODES + rc = zcdn_init(); + if (rc) + goto out; +#endif + /* Register the request sprayer. */ rc = misc_register(&zcrypt_misc_device); if (rc < 0) - goto out; + goto out_misc_register_failed; zcrypt_msgtype6_init(); zcrypt_msgtype50_init(); + return 0; +out_misc_register_failed: +#ifdef CONFIG_ZCRYPT_MULTIDEVNODES + zcdn_exit(); +#endif + zcrypt_debug_exit(); out: return rc; } @@ -1289,6 +1847,9 @@ out: */ void __exit zcrypt_api_exit(void) { +#ifdef CONFIG_ZCRYPT_MULTIDEVNODES + zcdn_exit(); +#endif misc_deregister(&zcrypt_misc_device); zcrypt_msgtype6_exit(); zcrypt_msgtype50_exit(); diff --git a/drivers/s390/crypto/zcrypt_api.h b/drivers/s390/crypto/zcrypt_api.h index a848625c1a5a..af67a768a3fc 100644 --- a/drivers/s390/crypto/zcrypt_api.h +++ b/drivers/s390/crypto/zcrypt_api.h @@ -1,8 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* - * zcrypt 2.1.0 - * - * Copyright IBM Corp. 2001, 2012 + * Copyright IBM Corp. 2001, 2018 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) * Cornelia Huck <cornelia.huck@de.ibm.com> @@ -22,17 +20,8 @@ #include "ap_bus.h" /** - * device type for an actual device is either PCICA, PCICC, PCIXCC_MCL2, - * PCIXCC_MCL3, CEX2C, or CEX2A - * - * NOTE: PCIXCC_MCL3 refers to a PCIXCC with May 2004 version of Licensed - * Internal Code (LIC) (EC J12220 level 29). - * PCIXCC_MCL2 refers to any LIC before this level. + * Supported device types */ -#define ZCRYPT_PCICA 1 -#define ZCRYPT_PCICC 2 -#define ZCRYPT_PCIXCC_MCL2 3 -#define ZCRYPT_PCIXCC_MCL3 4 #define ZCRYPT_CEX2C 5 #define ZCRYPT_CEX2A 6 #define ZCRYPT_CEX3C 7 diff --git a/drivers/s390/crypto/zcrypt_card.c b/drivers/s390/crypto/zcrypt_card.c index 40cd4c1c2de8..d4f35a183c15 100644 --- a/drivers/s390/crypto/zcrypt_card.c +++ b/drivers/s390/crypto/zcrypt_card.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * zcrypt 2.1.0 - * * Copyright IBM Corp. 2001, 2012 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) diff --git a/drivers/s390/crypto/zcrypt_cca_key.h b/drivers/s390/crypto/zcrypt_cca_key.h index e5b5c02c9d67..f09bb850763b 100644 --- a/drivers/s390/crypto/zcrypt_cca_key.h +++ b/drivers/s390/crypto/zcrypt_cca_key.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* - * zcrypt 2.1.0 - * * Copyright IBM Corp. 2001, 2006 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c index f4ae5fa30ec9..146f54f5cbb8 100644 --- a/drivers/s390/crypto/zcrypt_cex2a.c +++ b/drivers/s390/crypto/zcrypt_cex2a.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * zcrypt 2.1.0 - * * Copyright IBM Corp. 2001, 2012 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) @@ -43,8 +41,8 @@ #define CEX3A_CLEANUP_TIME CEX2A_CLEANUP_TIME MODULE_AUTHOR("IBM Corporation"); -MODULE_DESCRIPTION("CEX2A Cryptographic Coprocessor device driver, " \ - "Copyright IBM Corp. 2001, 2012"); +MODULE_DESCRIPTION("CEX2A/CEX3A Cryptographic Coprocessor device driver, " \ + "Copyright IBM Corp. 2001, 2018"); MODULE_LICENSE("GPL"); static struct ap_device_id zcrypt_cex2a_card_ids[] = { diff --git a/drivers/s390/crypto/zcrypt_cex2a.h b/drivers/s390/crypto/zcrypt_cex2a.h index 66d58bc87c66..7842214d9d09 100644 --- a/drivers/s390/crypto/zcrypt_cex2a.h +++ b/drivers/s390/crypto/zcrypt_cex2a.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* - * zcrypt 2.1.0 - * * Copyright IBM Corp. 2001, 2006 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) @@ -14,7 +12,7 @@ #define _ZCRYPT_CEX2A_H_ /** - * The type 50 message family is associated with a CEX2A card. + * The type 50 message family is associated with CEXxA cards. * * The four members of the family are described below. * @@ -111,7 +109,7 @@ struct type50_crb3_msg { } __packed; /** - * The type 80 response family is associated with a CEX2A card. + * The type 80 response family is associated with a CEXxA cards. * * Note that all unsigned char arrays are right-justified and left-padded * with zeroes. diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_cex2c.c index 94d9f7224aea..546f67676734 100644 --- a/drivers/s390/crypto/zcrypt_pcixcc.c +++ b/drivers/s390/crypto/zcrypt_cex2c.c @@ -1,8 +1,6 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * zcrypt 2.1.0 - * - * Copyright IBM Corp. 2001, 2012 + * Copyright IBM Corp. 2001, 2018 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) * @@ -25,39 +23,22 @@ #include "zcrypt_api.h" #include "zcrypt_error.h" #include "zcrypt_msgtype6.h" -#include "zcrypt_pcixcc.h" +#include "zcrypt_cex2c.h" #include "zcrypt_cca_key.h" -#define PCIXCC_MIN_MOD_SIZE 16 /* 128 bits */ -#define PCIXCC_MIN_MOD_SIZE_OLD 64 /* 512 bits */ -#define PCIXCC_MAX_MOD_SIZE 256 /* 2048 bits */ -#define CEX3C_MIN_MOD_SIZE PCIXCC_MIN_MOD_SIZE +#define CEX2C_MIN_MOD_SIZE 16 /* 128 bits */ +#define CEX2C_MAX_MOD_SIZE 256 /* 2048 bits */ +#define CEX3C_MIN_MOD_SIZE 16 /* 128 bits */ #define CEX3C_MAX_MOD_SIZE 512 /* 4096 bits */ - -#define PCIXCC_MAX_ICA_MESSAGE_SIZE 0x77c /* max size type6 v2 crt message */ -#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply */ - -#define PCIXCC_MAX_XCRB_MESSAGE_SIZE (12*1024) - -#define PCIXCC_CLEANUP_TIME (15*HZ) - -#define CEIL4(x) ((((x)+3)/4)*4) - -struct response_type { - struct completion work; - int type; -}; -#define PCIXCC_RESPONSE_TYPE_ICA 0 -#define PCIXCC_RESPONSE_TYPE_XCRB 1 +#define CEX2C_MAX_XCRB_MESSAGE_SIZE (12*1024) +#define CEX2C_CLEANUP_TIME (15*HZ) MODULE_AUTHOR("IBM Corporation"); -MODULE_DESCRIPTION("PCIXCC Cryptographic Coprocessor device driver, " \ - "Copyright IBM Corp. 2001, 2012"); +MODULE_DESCRIPTION("CEX2C/CEX3C Cryptographic Coprocessor device driver, " \ + "Copyright IBM Corp. 2001, 2018"); MODULE_LICENSE("GPL"); -static struct ap_device_id zcrypt_pcixcc_card_ids[] = { - { .dev_type = AP_DEVICE_TYPE_PCIXCC, - .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, +static struct ap_device_id zcrypt_cex2c_card_ids[] = { { .dev_type = AP_DEVICE_TYPE_CEX2C, .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, { .dev_type = AP_DEVICE_TYPE_CEX3C, @@ -65,11 +46,9 @@ static struct ap_device_id zcrypt_pcixcc_card_ids[] = { { /* end of list */ }, }; -MODULE_DEVICE_TABLE(ap, zcrypt_pcixcc_card_ids); +MODULE_DEVICE_TABLE(ap, zcrypt_cex2c_card_ids); -static struct ap_device_id zcrypt_pcixcc_queue_ids[] = { - { .dev_type = AP_DEVICE_TYPE_PCIXCC, - .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, +static struct ap_device_id zcrypt_cex2c_queue_ids[] = { { .dev_type = AP_DEVICE_TYPE_CEX2C, .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, { .dev_type = AP_DEVICE_TYPE_CEX3C, @@ -77,16 +56,16 @@ static struct ap_device_id zcrypt_pcixcc_queue_ids[] = { { /* end of list */ }, }; -MODULE_DEVICE_TABLE(ap, zcrypt_pcixcc_queue_ids); +MODULE_DEVICE_TABLE(ap, zcrypt_cex2c_queue_ids); /** - * Large random number detection function. Its sends a message to a pcixcc + * Large random number detection function. Its sends a message to a CEX2C/CEX3C * card to find out if large random numbers are supported. * @ap_dev: pointer to the AP device. * * Returns 1 if large random numbers are supported, 0 if not and < 0 on error. */ -static int zcrypt_pcixcc_rng_supported(struct ap_queue *aq) +static int zcrypt_cex2c_rng_supported(struct ap_queue *aq) { struct ap_message ap_msg; unsigned long long psmid; @@ -147,13 +126,11 @@ out_free: } /** - * Probe function for PCIXCC/CEX2C card devices. It always accepts the - * AP device since the bus_match already checked the hardware type. The - * PCIXCC cards come in two flavours: micro code level 2 and micro code - * level 3. This is checked by sending a test message to the device. + * Probe function for CEX2C/CEX3C card devices. It always accepts the + * AP device since the bus_match already checked the hardware type. * @ap_dev: pointer to the AP card device. */ -static int zcrypt_pcixcc_card_probe(struct ap_device *ap_dev) +static int zcrypt_cex2c_card_probe(struct ap_device *ap_dev) { /* * Normalized speed ratings per crypto adapter @@ -179,9 +156,9 @@ static int zcrypt_pcixcc_card_probe(struct ap_device *ap_dev) zc->type_string = "CEX2C"; memcpy(zc->speed_rating, CEX2C_SPEED_IDX, sizeof(CEX2C_SPEED_IDX)); - zc->min_mod_size = PCIXCC_MIN_MOD_SIZE; - zc->max_mod_size = PCIXCC_MAX_MOD_SIZE; - zc->max_exp_bit_length = PCIXCC_MAX_MOD_SIZE; + zc->min_mod_size = CEX2C_MIN_MOD_SIZE; + zc->max_mod_size = CEX2C_MAX_MOD_SIZE; + zc->max_exp_bit_length = CEX2C_MAX_MOD_SIZE; break; case AP_DEVICE_TYPE_CEX3C: zc->user_space_type = ZCRYPT_CEX3C; @@ -208,10 +185,10 @@ static int zcrypt_pcixcc_card_probe(struct ap_device *ap_dev) } /** - * This is called to remove the PCIXCC/CEX2C card driver information + * This is called to remove the CEX2C/CEX3C card driver information * if an AP card device is removed. */ -static void zcrypt_pcixcc_card_remove(struct ap_device *ap_dev) +static void zcrypt_cex2c_card_remove(struct ap_device *ap_dev) { struct zcrypt_card *zc = to_ap_card(&ap_dev->device)->private; @@ -219,33 +196,31 @@ static void zcrypt_pcixcc_card_remove(struct ap_device *ap_dev) zcrypt_card_unregister(zc); } -static struct ap_driver zcrypt_pcixcc_card_driver = { - .probe = zcrypt_pcixcc_card_probe, - .remove = zcrypt_pcixcc_card_remove, - .ids = zcrypt_pcixcc_card_ids, +static struct ap_driver zcrypt_cex2c_card_driver = { + .probe = zcrypt_cex2c_card_probe, + .remove = zcrypt_cex2c_card_remove, + .ids = zcrypt_cex2c_card_ids, .flags = AP_DRIVER_FLAG_DEFAULT, }; /** - * Probe function for PCIXCC/CEX2C queue devices. It always accepts the - * AP device since the bus_match already checked the hardware type. The - * PCIXCC cards come in two flavours: micro code level 2 and micro code - * level 3. This is checked by sending a test message to the device. + * Probe function for CEX2C/CEX3C queue devices. It always accepts the + * AP device since the bus_match already checked the hardware type. * @ap_dev: pointer to the AP card device. */ -static int zcrypt_pcixcc_queue_probe(struct ap_device *ap_dev) +static int zcrypt_cex2c_queue_probe(struct ap_device *ap_dev) { struct ap_queue *aq = to_ap_queue(&ap_dev->device); struct zcrypt_queue *zq; int rc; - zq = zcrypt_queue_alloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE); + zq = zcrypt_queue_alloc(CEX2C_MAX_XCRB_MESSAGE_SIZE); if (!zq) return -ENOMEM; zq->queue = aq; zq->online = 1; atomic_set(&zq->load, 0); - rc = zcrypt_pcixcc_rng_supported(aq); + rc = zcrypt_cex2c_rng_supported(aq); if (rc < 0) { zcrypt_queue_free(zq); return rc; @@ -257,7 +232,7 @@ static int zcrypt_pcixcc_queue_probe(struct ap_device *ap_dev) zq->ops = zcrypt_msgtype(MSGTYPE06_NAME, MSGTYPE06_VARIANT_NORNG); ap_queue_init_reply(aq, &zq->reply); - aq->request_timeout = PCIXCC_CLEANUP_TIME, + aq->request_timeout = CEX2C_CLEANUP_TIME; aq->private = zq; rc = zcrypt_queue_register(zq); if (rc) { @@ -268,10 +243,10 @@ static int zcrypt_pcixcc_queue_probe(struct ap_device *ap_dev) } /** - * This is called to remove the PCIXCC/CEX2C queue driver information + * This is called to remove the CEX2C/CEX3C queue driver information * if an AP queue device is removed. */ -static void zcrypt_pcixcc_queue_remove(struct ap_device *ap_dev) +static void zcrypt_cex2c_queue_remove(struct ap_device *ap_dev) { struct ap_queue *aq = to_ap_queue(&ap_dev->device); struct zcrypt_queue *zq = aq->private; @@ -281,37 +256,37 @@ static void zcrypt_pcixcc_queue_remove(struct ap_device *ap_dev) zcrypt_queue_unregister(zq); } -static struct ap_driver zcrypt_pcixcc_queue_driver = { - .probe = zcrypt_pcixcc_queue_probe, - .remove = zcrypt_pcixcc_queue_remove, +static struct ap_driver zcrypt_cex2c_queue_driver = { + .probe = zcrypt_cex2c_queue_probe, + .remove = zcrypt_cex2c_queue_remove, .suspend = ap_queue_suspend, .resume = ap_queue_resume, - .ids = zcrypt_pcixcc_queue_ids, + .ids = zcrypt_cex2c_queue_ids, .flags = AP_DRIVER_FLAG_DEFAULT, }; -int __init zcrypt_pcixcc_init(void) +int __init zcrypt_cex2c_init(void) { int rc; - rc = ap_driver_register(&zcrypt_pcixcc_card_driver, - THIS_MODULE, "pcixcccard"); + rc = ap_driver_register(&zcrypt_cex2c_card_driver, + THIS_MODULE, "cex2card"); if (rc) return rc; - rc = ap_driver_register(&zcrypt_pcixcc_queue_driver, - THIS_MODULE, "pcixccqueue"); + rc = ap_driver_register(&zcrypt_cex2c_queue_driver, + THIS_MODULE, "cex2cqueue"); if (rc) - ap_driver_unregister(&zcrypt_pcixcc_card_driver); + ap_driver_unregister(&zcrypt_cex2c_card_driver); return rc; } -void zcrypt_pcixcc_exit(void) +void zcrypt_cex2c_exit(void) { - ap_driver_unregister(&zcrypt_pcixcc_queue_driver); - ap_driver_unregister(&zcrypt_pcixcc_card_driver); + ap_driver_unregister(&zcrypt_cex2c_queue_driver); + ap_driver_unregister(&zcrypt_cex2c_card_driver); } -module_init(zcrypt_pcixcc_init); -module_exit(zcrypt_pcixcc_exit); +module_init(zcrypt_cex2c_init); +module_exit(zcrypt_cex2c_exit); diff --git a/drivers/s390/crypto/zcrypt_pcixcc.h b/drivers/s390/crypto/zcrypt_cex2c.h index cf73a0f91e9c..6ec405c2bec2 100644 --- a/drivers/s390/crypto/zcrypt_pcixcc.h +++ b/drivers/s390/crypto/zcrypt_cex2c.h @@ -1,8 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* - * zcrypt 2.1.0 - * - * Copyright IBM Corp. 2001, 2012 + * Copyright IBM Corp. 2001, 2018 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) * @@ -11,10 +9,10 @@ * MSGTYPE restruct: Holger Dengler <hd@linux.vnet.ibm.com> */ -#ifndef _ZCRYPT_PCIXCC_H_ -#define _ZCRYPT_PCIXCC_H_ +#ifndef _ZCRYPT_CEX2C_H_ +#define _ZCRYPT_CEX2C_H_ -int zcrypt_pcixcc_init(void); -void zcrypt_pcixcc_exit(void); +int zcrypt_cex2c_init(void); +void zcrypt_cex2c_exit(void); -#endif /* _ZCRYPT_PCIXCC_H_ */ +#endif /* _ZCRYPT_CEX2C_H_ */ diff --git a/drivers/s390/crypto/zcrypt_cex4.c b/drivers/s390/crypto/zcrypt_cex4.c index 35d58dbbc4da..f9d4c6c7521d 100644 --- a/drivers/s390/crypto/zcrypt_cex4.c +++ b/drivers/s390/crypto/zcrypt_cex4.c @@ -37,8 +37,8 @@ #define CEX4_CLEANUP_TIME (900*HZ) MODULE_AUTHOR("IBM Corporation"); -MODULE_DESCRIPTION("CEX4 Cryptographic Card device driver, " \ - "Copyright IBM Corp. 2012"); +MODULE_DESCRIPTION("CEX4/CEX5/CEX6 Cryptographic Card device driver, " \ + "Copyright IBM Corp. 2018"); MODULE_LICENSE("GPL"); static struct ap_device_id zcrypt_cex4_card_ids[] = { @@ -66,8 +66,9 @@ static struct ap_device_id zcrypt_cex4_queue_ids[] = { MODULE_DEVICE_TABLE(ap, zcrypt_cex4_queue_ids); /** - * Probe function for CEX4 card device. It always accepts the AP device - * since the bus_match already checked the hardware type. + * Probe function for CEX4/CEX5/CEX6 card device. It always + * accepts the AP device since the bus_match already checked + * the hardware type. * @ap_dev: pointer to the AP device. */ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev) @@ -199,7 +200,7 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev) } /** - * This is called to remove the CEX4 card driver information + * This is called to remove the CEX4/CEX5/CEX6 card driver information * if an AP card device is removed. */ static void zcrypt_cex4_card_remove(struct ap_device *ap_dev) @@ -218,8 +219,9 @@ static struct ap_driver zcrypt_cex4_card_driver = { }; /** - * Probe function for CEX4 queue device. It always accepts the AP device - * since the bus_match already checked the hardware type. + * Probe function for CEX4/CEX5/CEX6 queue device. It always + * accepts the AP device since the bus_match already checked + * the hardware type. * @ap_dev: pointer to the AP device. */ static int zcrypt_cex4_queue_probe(struct ap_device *ap_dev) @@ -265,8 +267,8 @@ static int zcrypt_cex4_queue_probe(struct ap_device *ap_dev) } /** - * This is called to remove the CEX4 queue driver information - * if an AP queue device is removed. + * This is called to remove the CEX4/CEX5/CEX6 queue driver + * information if an AP queue device is removed. */ static void zcrypt_cex4_queue_remove(struct ap_device *ap_dev) { diff --git a/drivers/s390/crypto/zcrypt_error.h b/drivers/s390/crypto/zcrypt_error.h index 6f7ebc1dbe10..240b27f3f5f6 100644 --- a/drivers/s390/crypto/zcrypt_error.h +++ b/drivers/s390/crypto/zcrypt_error.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* - * zcrypt 2.1.0 - * * Copyright IBM Corp. 2001, 2006 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) @@ -16,6 +14,7 @@ #include <linux/atomic.h> #include "zcrypt_debug.h" #include "zcrypt_api.h" +#include "zcrypt_msgtype6.h" /** * Reply Messages @@ -114,6 +113,27 @@ static inline int convert_error(struct zcrypt_queue *zq, card, queue, ehdr->reply_code); return -EAGAIN; case REP82_ERROR_TRANSPORT_FAIL: + /* Card or infrastructure failure, disable card */ + atomic_set(&zcrypt_rescan_req, 1); + zq->online = 0; + pr_err("Cryptographic device %02x.%04x failed and was set offline\n", + card, queue); + /* For type 86 response show the apfs value (failure reason) */ + if (ehdr->type == TYPE86_RSP_CODE) { + struct { + struct type86_hdr hdr; + struct type86_fmt2_ext fmt2; + } __packed * head = reply->message; + unsigned int apfs = *((u32 *)head->fmt2.apfs); + + ZCRYPT_DBF(DBF_ERR, + "device=%02x.%04x reply=0x%02x apfs=0x%x => online=0 rc=EAGAIN\n", + card, queue, apfs, ehdr->reply_code); + } else + ZCRYPT_DBF(DBF_ERR, + "device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n", + card, queue, ehdr->reply_code); + return -EAGAIN; case REP82_ERROR_MACHINE_FAILURE: // REP88_ERROR_MODULE_FAILURE // '10' CEX2A /* If a card fails disable it and repeat the request. */ diff --git a/drivers/s390/crypto/zcrypt_msgtype50.c b/drivers/s390/crypto/zcrypt_msgtype50.c index f159662c907b..fc4295b3d801 100644 --- a/drivers/s390/crypto/zcrypt_msgtype50.c +++ b/drivers/s390/crypto/zcrypt_msgtype50.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * zcrypt 2.1.0 - * * Copyright IBM Corp. 2001, 2012 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) @@ -27,13 +25,13 @@ #include "zcrypt_error.h" #include "zcrypt_msgtype50.h" -/* 4096 bits */ +/* >= CEX3A: 4096 bits */ #define CEX3A_MAX_MOD_SIZE 512 -/* max outputdatalength + type80_hdr */ +/* CEX2A: max outputdatalength + type80_hdr */ #define CEX2A_MAX_RESPONSE_SIZE 0x110 -/* 512 bit modulus, (max outputdatalength) + type80_hdr */ +/* >= CEX3A: 512 bit modulus, (max outputdatalength) + type80_hdr */ #define CEX3A_MAX_RESPONSE_SIZE 0x210 MODULE_AUTHOR("IBM Corporation"); @@ -42,7 +40,7 @@ MODULE_DESCRIPTION("Cryptographic Accelerator (message type 50), " \ MODULE_LICENSE("GPL"); /** - * The type 50 message family is associated with a CEX2A card. + * The type 50 message family is associated with a CEXxA cards. * * The four members of the family are described below. * @@ -139,7 +137,7 @@ struct type50_crb3_msg { } __packed; /** - * The type 80 response family is associated with a CEX2A card. + * The type 80 response family is associated with a CEXxA cards. * * Note that all unsigned char arrays are right-justified and left-padded * with zeroes. @@ -273,7 +271,7 @@ static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_queue *zq, /* * CEX2A and CEX3A w/o FW update can handle requests up to * 256 byte modulus (2k keys). - * CEX3A with FW update and CEX4A cards are able to handle + * CEX3A with FW update and newer CEXxA cards are able to handle * 512 byte modulus (4k keys). */ if (mod_len <= 128) { /* up to 1024 bit key size */ @@ -356,7 +354,7 @@ static int convert_type80(struct zcrypt_queue *zq, unsigned char *data; if (t80h->len < sizeof(*t80h) + outputdatalength) { - /* The result is too short, the CEX2A card may not do that.. */ + /* The result is too short, the CEXxA card may not do that.. */ zq->online = 0; pr_err("Cryptographic device %02x.%04x failed and was set offline\n", AP_QID_CARD(zq->queue->qid), @@ -447,10 +445,10 @@ out: static atomic_t zcrypt_step = ATOMIC_INIT(0); /** - * The request distributor calls this function if it picked the CEX2A + * The request distributor calls this function if it picked the CEXxA * device to handle a modexpo request. * @zq: pointer to zcrypt_queue structure that identifies the - * CEX2A device to the request distributor + * CEXxA device to the request distributor * @mex: pointer to the modexpo request buffer */ static long zcrypt_cex2a_modexpo(struct zcrypt_queue *zq, @@ -493,10 +491,10 @@ out_free: } /** - * The request distributor calls this function if it picked the CEX2A + * The request distributor calls this function if it picked the CEXxA * device to handle a modexpo_crt request. * @zq: pointer to zcrypt_queue structure that identifies the - * CEX2A device to the request distributor + * CEXxA device to the request distributor * @crt: pointer to the modexpoc_crt request buffer */ static long zcrypt_cex2a_modexpo_crt(struct zcrypt_queue *zq, diff --git a/drivers/s390/crypto/zcrypt_msgtype50.h b/drivers/s390/crypto/zcrypt_msgtype50.h index 8530f652ea4f..66bec4f45c56 100644 --- a/drivers/s390/crypto/zcrypt_msgtype50.h +++ b/drivers/s390/crypto/zcrypt_msgtype50.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* - * zcrypt 2.1.0 - * * Copyright IBM Corp. 2001, 2012 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) diff --git a/drivers/s390/crypto/zcrypt_msgtype6.c b/drivers/s390/crypto/zcrypt_msgtype6.c index 2101776a8148..0cbcc238ef98 100644 --- a/drivers/s390/crypto/zcrypt_msgtype6.c +++ b/drivers/s390/crypto/zcrypt_msgtype6.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * zcrypt 2.1.0 - * * Copyright IBM Corp. 2001, 2012 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) @@ -29,8 +27,7 @@ #include "zcrypt_msgtype6.h" #include "zcrypt_cca_key.h" -#define PCIXCC_MIN_MOD_SIZE_OLD 64 /* 512 bits */ -#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply */ +#define CEXXC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply */ #define CEIL4(x) ((((x)+3)/4)*4) @@ -38,9 +35,9 @@ struct response_type { struct completion work; int type; }; -#define PCIXCC_RESPONSE_TYPE_ICA 0 -#define PCIXCC_RESPONSE_TYPE_XCRB 1 -#define PCIXCC_RESPONSE_TYPE_EP11 2 +#define CEXXC_RESPONSE_TYPE_ICA 0 +#define CEXXC_RESPONSE_TYPE_XCRB 1 +#define CEXXC_RESPONSE_TYPE_EP11 2 MODULE_AUTHOR("IBM Corporation"); MODULE_DESCRIPTION("Cryptographic Coprocessor (message type 6), " \ @@ -111,7 +108,7 @@ struct function_and_rules_block { } __packed; /** - * The following is used to initialize the CPRBX passed to the PCIXCC/CEX2C + * The following is used to initialize the CPRBX passed to the CEXxC/CEXxP * card in a type6 message. The 3 fields that must be filled in at execution * time are req_parml, rpl_parml and usage_domain. * Everything about this interface is ascii/big-endian, since the @@ -294,7 +291,7 @@ static int ICAMEX_msg_to_type6MEX_msgX(struct zcrypt_queue *zq, /* message header, cprbx and f&r */ msg->hdr = static_type6_hdrX; msg->hdr.ToCardLen1 = size - sizeof(msg->hdr); - msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); + msg->hdr.FromCardLen1 = CEXXC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); msg->cprbx = static_cprbx; msg->cprbx.domain = AP_QID_QUEUE(zq->queue->qid); @@ -364,7 +361,7 @@ static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_queue *zq, /* message header, cprbx and f&r */ msg->hdr = static_type6_hdrX; msg->hdr.ToCardLen1 = size - sizeof(msg->hdr); - msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); + msg->hdr.FromCardLen1 = CEXXC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); msg->cprbx = static_cprbx; msg->cprbx.domain = AP_QID_QUEUE(zq->queue->qid); @@ -658,16 +655,6 @@ static int convert_type86_ica(struct zcrypt_queue *zq, (int) service_rc, (int) service_rs); return -EINVAL; } - if (service_rc == 8 && service_rs == 783) { - zq->zcard->min_mod_size = - PCIXCC_MIN_MOD_SIZE_OLD; - ZCRYPT_DBF(DBF_DEBUG, - "device=%02x.%04x rc/rs=%d/%d => rc=EAGAIN\n", - AP_QID_CARD(zq->queue->qid), - AP_QID_QUEUE(zq->queue->qid), - (int) service_rc, (int) service_rs); - return -EAGAIN; - } zq->online = 0; pr_err("Cryptographic device %02x.%04x failed and was set offline\n", AP_QID_CARD(zq->queue->qid), @@ -697,7 +684,7 @@ static int convert_type86_ica(struct zcrypt_queue *zq, if (pad_len > 0) { if (pad_len < 10) return -EINVAL; - /* 'restore' padding left in the PCICC/PCIXCC card. */ + /* 'restore' padding left in the CEXXC card. */ if (copy_to_user(outputdata, static_pad, pad_len - 1)) return -EFAULT; if (put_user(0, outputdata + pad_len - 1)) @@ -955,13 +942,13 @@ static void zcrypt_msgtype6_receive(struct ap_queue *aq, if (t86r->hdr.type == TYPE86_RSP_CODE && t86r->cprbx.cprb_ver_id == 0x02) { switch (resp_type->type) { - case PCIXCC_RESPONSE_TYPE_ICA: + case CEXXC_RESPONSE_TYPE_ICA: length = sizeof(struct type86x_reply) + t86r->length - 2; - length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length); + length = min(CEXXC_MAX_ICA_RESPONSE_SIZE, length); memcpy(msg->message, reply->message, length); break; - case PCIXCC_RESPONSE_TYPE_XCRB: + case CEXXC_RESPONSE_TYPE_XCRB: length = t86r->fmt2.offset2 + t86r->fmt2.count2; length = min(MSGTYPE06_MAX_MSG_SIZE, length); memcpy(msg->message, reply->message, length); @@ -1004,7 +991,7 @@ static void zcrypt_msgtype6_receive_ep11(struct ap_queue *aq, if (t86r->hdr.type == TYPE86_RSP_CODE && t86r->cprbx.cprb_ver_id == 0x04) { switch (resp_type->type) { - case PCIXCC_RESPONSE_TYPE_EP11: + case CEXXC_RESPONSE_TYPE_EP11: length = t86r->fmt2.offset1 + t86r->fmt2.count1; length = min(MSGTYPE06_MAX_MSG_SIZE, length); memcpy(msg->message, reply->message, length); @@ -1022,10 +1009,10 @@ out: static atomic_t zcrypt_step = ATOMIC_INIT(0); /** - * The request distributor calls this function if it picked the PCIXCC/CEX2C + * The request distributor calls this function if it picked the CEXxC * device to handle a modexpo request. * @zq: pointer to zcrypt_queue structure that identifies the - * PCIXCC/CEX2C device to the request distributor + * CEXxC device to the request distributor * @mex: pointer to the modexpo request buffer */ static long zcrypt_msgtype6_modexpo(struct zcrypt_queue *zq, @@ -1033,7 +1020,7 @@ static long zcrypt_msgtype6_modexpo(struct zcrypt_queue *zq, { struct ap_message ap_msg; struct response_type resp_type = { - .type = PCIXCC_RESPONSE_TYPE_ICA, + .type = CEXXC_RESPONSE_TYPE_ICA, }; int rc; @@ -1066,10 +1053,10 @@ out_free: } /** - * The request distributor calls this function if it picked the PCIXCC/CEX2C + * The request distributor calls this function if it picked the CEXxC * device to handle a modexpo_crt request. * @zq: pointer to zcrypt_queue structure that identifies the - * PCIXCC/CEX2C device to the request distributor + * CEXxC device to the request distributor * @crt: pointer to the modexpoc_crt request buffer */ static long zcrypt_msgtype6_modexpo_crt(struct zcrypt_queue *zq, @@ -1077,7 +1064,7 @@ static long zcrypt_msgtype6_modexpo_crt(struct zcrypt_queue *zq, { struct ap_message ap_msg; struct response_type resp_type = { - .type = PCIXCC_RESPONSE_TYPE_ICA, + .type = CEXXC_RESPONSE_TYPE_ICA, }; int rc; @@ -1122,7 +1109,7 @@ unsigned int get_cprb_fc(struct ica_xcRB *xcRB, unsigned int *func_code, unsigned short **dom) { struct response_type resp_type = { - .type = PCIXCC_RESPONSE_TYPE_XCRB, + .type = CEXXC_RESPONSE_TYPE_XCRB, }; ap_msg->message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL); @@ -1131,18 +1118,17 @@ unsigned int get_cprb_fc(struct ica_xcRB *xcRB, ap_msg->receive = zcrypt_msgtype6_receive; ap_msg->psmid = (((unsigned long long) current->pid) << 32) + atomic_inc_return(&zcrypt_step); - ap_msg->private = kmalloc(sizeof(resp_type), GFP_KERNEL); + ap_msg->private = kmemdup(&resp_type, sizeof(resp_type), GFP_KERNEL); if (!ap_msg->private) return -ENOMEM; - memcpy(ap_msg->private, &resp_type, sizeof(resp_type)); return XCRB_msg_to_type6CPRB_msgX(ap_msg, xcRB, func_code, dom); } /** - * The request distributor calls this function if it picked the PCIXCC/CEX2C + * The request distributor calls this function if it picked the CEXxC * device to handle a send_cprb request. * @zq: pointer to zcrypt_queue structure that identifies the - * PCIXCC/CEX2C device to the request distributor + * CEXxC device to the request distributor * @xcRB: pointer to the send_cprb request buffer */ static long zcrypt_msgtype6_send_cprb(struct zcrypt_queue *zq, @@ -1178,7 +1164,7 @@ unsigned int get_ep11cprb_fc(struct ep11_urb *xcrb, unsigned int *func_code) { struct response_type resp_type = { - .type = PCIXCC_RESPONSE_TYPE_EP11, + .type = CEXXC_RESPONSE_TYPE_EP11, }; ap_msg->message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL); @@ -1187,10 +1173,9 @@ unsigned int get_ep11cprb_fc(struct ep11_urb *xcrb, ap_msg->receive = zcrypt_msgtype6_receive_ep11; ap_msg->psmid = (((unsigned long long) current->pid) << 32) + atomic_inc_return(&zcrypt_step); - ap_msg->private = kmalloc(sizeof(resp_type), GFP_KERNEL); + ap_msg->private = kmemdup(&resp_type, sizeof(resp_type), GFP_KERNEL); if (!ap_msg->private) return -ENOMEM; - memcpy(ap_msg->private, &resp_type, sizeof(resp_type)); return xcrb_msg_to_type6_ep11cprb_msgx(ap_msg, xcrb, func_code); } @@ -1273,7 +1258,7 @@ unsigned int get_rng_fc(struct ap_message *ap_msg, int *func_code, unsigned int *domain) { struct response_type resp_type = { - .type = PCIXCC_RESPONSE_TYPE_XCRB, + .type = CEXXC_RESPONSE_TYPE_XCRB, }; ap_msg->message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL); @@ -1282,10 +1267,9 @@ unsigned int get_rng_fc(struct ap_message *ap_msg, int *func_code, ap_msg->receive = zcrypt_msgtype6_receive; ap_msg->psmid = (((unsigned long long) current->pid) << 32) + atomic_inc_return(&zcrypt_step); - ap_msg->private = kmalloc(sizeof(resp_type), GFP_KERNEL); + ap_msg->private = kmemdup(&resp_type, sizeof(resp_type), GFP_KERNEL); if (!ap_msg->private) return -ENOMEM; - memcpy(ap_msg->private, &resp_type, sizeof(resp_type)); rng_type6CPRB_msgX(ap_msg, ZCRYPT_RNG_BUFFER_SIZE, domain); @@ -1294,10 +1278,10 @@ unsigned int get_rng_fc(struct ap_message *ap_msg, int *func_code, } /** - * The request distributor calls this function if it picked the PCIXCC/CEX2C + * The request distributor calls this function if it picked the CEXxC * device to generate random data. * @zq: pointer to zcrypt_queue structure that identifies the - * PCIXCC/CEX2C device to the request distributor + * CEXxC device to the request distributor * @buffer: pointer to a memory page to return random data */ static long zcrypt_msgtype6_rng(struct zcrypt_queue *zq, @@ -1332,7 +1316,7 @@ static long zcrypt_msgtype6_rng(struct zcrypt_queue *zq, } /** - * The crypto operations for a PCIXCC/CEX2C card. + * The crypto operations for a CEXxC card. */ static struct zcrypt_ops zcrypt_msgtype6_norng_ops = { .owner = THIS_MODULE, diff --git a/drivers/s390/crypto/zcrypt_msgtype6.h b/drivers/s390/crypto/zcrypt_msgtype6.h index e4c2f37d7ad9..41a0df5f070f 100644 --- a/drivers/s390/crypto/zcrypt_msgtype6.h +++ b/drivers/s390/crypto/zcrypt_msgtype6.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* - * zcrypt 2.1.0 - * * Copyright IBM Corp. 2001, 2012 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) @@ -24,7 +22,7 @@ #define MSGTYPE06_MAX_MSG_SIZE (12*1024) /** - * The type 6 message family is associated with PCICC or PCIXCC cards. + * The type 6 message family is associated with CEXxC/CEXxP cards. * * It contains a message header followed by a CPRB, both of which * are described below. @@ -43,13 +41,8 @@ struct type6_hdr { unsigned int offset2; /* 0x00000000 */ unsigned int offset3; /* 0x00000000 */ unsigned int offset4; /* 0x00000000 */ - unsigned char agent_id[16]; /* PCICC: */ - /* 0x0100 */ - /* 0x4343412d4150504c202020 */ - /* 0x010101 */ - /* PCIXCC: */ - /* 0x4341000000000000 */ - /* 0x0000000000000000 */ + unsigned char agent_id[16]; /* 0x4341000000000000 */ + /* 0x0000000000000000 */ unsigned char rqid[2]; /* rqid. internal to 603 */ unsigned char reserved5[2]; /* 0x0000 */ unsigned char function_code[2]; /* for PKD, 0x5044 (ascii 'PD') */ @@ -65,7 +58,7 @@ struct type6_hdr { } __packed; /** - * The type 86 message family is associated with PCICC and PCIXCC cards. + * The type 86 message family is associated with CEXxC/CEXxP cards. * * It contains a message header followed by a CPRB. The CPRB is * the same as the request CPRB, which is described above. diff --git a/drivers/s390/crypto/zcrypt_queue.c b/drivers/s390/crypto/zcrypt_queue.c index 8df82c6ef66e..522c4bc69a08 100644 --- a/drivers/s390/crypto/zcrypt_queue.c +++ b/drivers/s390/crypto/zcrypt_queue.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * zcrypt 2.1.0 - * * Copyright IBM Corp. 2001, 2012 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) |