#include <linux/init.h>
#include <linux/interrupt.h> // for tasklets
#include <linux/ioctl32.h>
+#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kobject_uevent.h>
#include <linux/version.h>
#include "z90crypt.h"
#include "z90common.h"
-#ifndef Z90CRYPT_USE_HOTPLUG
-#include <linux/miscdevice.h>
-#endif
-#define VERSION_CODE(vers, rel, seq) (((vers)<<16) | ((rel)<<8) | (seq))
-#if LINUX_VERSION_CODE < VERSION_CODE(2,4,0) /* version < 2.4 */
-# error "This kernel is too old: not supported"
-#endif
-#if LINUX_VERSION_CODE > VERSION_CODE(2,7,0) /* version > 2.6 */
-# error "This kernel is too recent: not supported by this file"
-#endif
-
-#define VERSION_Z90MAIN_C "$Revision: 1.57 $"
+#define VERSION_Z90MAIN_C "$Revision: 1.62 $"
static char z90main_version[] __initdata =
"z90main.o (" VERSION_Z90MAIN_C "/"
* Defaults that may be modified.
*/
-#ifndef Z90CRYPT_USE_HOTPLUG
/**
* You can specify a different minor at compile time.
*/
#ifndef Z90CRYPT_MINOR
#define Z90CRYPT_MINOR MISC_DYNAMIC_MINOR
#endif
-#else
-/**
- * You can specify a different major at compile time.
- */
-#ifndef Z90CRYPT_MAJOR
-#define Z90CRYPT_MAJOR 0
-#endif
-#endif
/**
* You can specify a different domain at compile time or on the insmod
* older than CLEANUPTIME seconds in the past.
*/
#ifndef CLEANUPTIME
-#define CLEANUPTIME 20
+#define CLEANUPTIME 15
#endif
/**
* it contains the request; at READ, the response. The function
* send_to_crypto_device converts the request to device-dependent
* form and use the caller's OPEN-allocated buffer for the response.
+ *
+ * For the contents of caller_dev_dep_req and caller_dev_dep_req_p
+ * because that points to it, see the discussion in z90hardware.c.
+ * Search for "extended request message block".
*/
struct caller {
int caller_buf_l; // length of original request
static ssize_t z90crypt_read(struct file *, char __user *, size_t, loff_t *);
static ssize_t z90crypt_write(struct file *, const char __user *,
size_t, loff_t *);
-static int z90crypt_ioctl(struct inode *, struct file *,
- unsigned int, unsigned long);
+static long z90crypt_unlocked_ioctl(struct file *, unsigned int, unsigned long);
+static long z90crypt_compat_ioctl(struct file *, unsigned int, unsigned long);
static void z90crypt_reader_task(unsigned long);
static void z90crypt_schedule_reader_task(unsigned long);
static int z90crypt_status_write(struct file *, const char __user *,
unsigned long, void *);
-/**
- * Hotplug support
- */
-
-#ifdef Z90CRYPT_USE_HOTPLUG
-#define Z90CRYPT_HOTPLUG_ADD 1
-#define Z90CRYPT_HOTPLUG_REMOVE 2
-
-static void z90crypt_hotplug_event(int, int, int);
-#endif
-
/**
* Storage allocated at initialization and used throughout the life of
* this insmod
*/
-#ifdef Z90CRYPT_USE_HOTPLUG
-static int z90crypt_major = Z90CRYPT_MAJOR;
-#endif
-
static int domain = DOMAIN_INDEX;
static struct z90crypt z90crypt;
static int quiesce_z90crypt;
static atomic_t z90crypt_step;
static struct file_operations z90crypt_fops = {
- .owner = THIS_MODULE,
- .read = z90crypt_read,
- .write = z90crypt_write,
- .ioctl = z90crypt_ioctl,
- .open = z90crypt_open,
- .release = z90crypt_release
+ .owner = THIS_MODULE,
+ .read = z90crypt_read,
+ .write = z90crypt_write,
+ .unlocked_ioctl = z90crypt_unlocked_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = z90crypt_compat_ioctl,
+#endif
+ .open = z90crypt_open,
+ .release = z90crypt_release
};
-#ifndef Z90CRYPT_USE_HOTPLUG
static struct miscdevice z90crypt_misc_device = {
.minor = Z90CRYPT_MINOR,
.name = DEV_NAME,
.fops = &z90crypt_fops,
.devfs_name = DEV_NAME
};
-#endif
/**
* Documentation values.
compat_uptr_t n_modulus;
};
-static int
-trans_modexpo32(unsigned int fd, unsigned int cmd, unsigned long arg,
- struct file *file)
+static long
+trans_modexpo32(struct file *filp, unsigned int cmd, unsigned long arg)
{
struct ica_rsa_modexpo_32 __user *mex32u = compat_ptr(arg);
struct ica_rsa_modexpo_32 mex32k;
struct ica_rsa_modexpo __user *mex64;
- int ret = 0;
+ long ret = 0;
unsigned int i;
if (!access_ok(VERIFY_WRITE, mex32u, sizeof(struct ica_rsa_modexpo_32)))
__put_user(compat_ptr(mex32k.b_key), &mex64->b_key) ||
__put_user(compat_ptr(mex32k.n_modulus), &mex64->n_modulus))
return -EFAULT;
- ret = sys_ioctl(fd, cmd, (unsigned long)mex64);
+ ret = z90crypt_unlocked_ioctl(filp, cmd, (unsigned long)mex64);
if (!ret)
if (__get_user(i, &mex64->outputdatalength) ||
__put_user(i, &mex32u->outputdatalength))
compat_uptr_t u_mult_inv;
};
-static int
-trans_modexpo_crt32(unsigned int fd, unsigned int cmd, unsigned long arg,
- struct file *file)
+static long
+trans_modexpo_crt32(struct file *filp, unsigned int cmd, unsigned long arg)
{
struct ica_rsa_modexpo_crt_32 __user *crt32u = compat_ptr(arg);
struct ica_rsa_modexpo_crt_32 crt32k;
struct ica_rsa_modexpo_crt __user *crt64;
- int ret = 0;
+ long ret = 0;
unsigned int i;
if (!access_ok(VERIFY_WRITE, crt32u,
__put_user(compat_ptr(crt32k.np_prime), &crt64->np_prime) ||
__put_user(compat_ptr(crt32k.nq_prime), &crt64->nq_prime) ||
__put_user(compat_ptr(crt32k.u_mult_inv), &crt64->u_mult_inv))
- ret = -EFAULT;
- if (!ret)
- ret = sys_ioctl(fd, cmd, (unsigned long)crt64);
+ return -EFAULT;
+ ret = z90crypt_unlocked_ioctl(filp, cmd, (unsigned long)crt64);
if (!ret)
if (__get_user(i, &crt64->outputdatalength) ||
__put_user(i, &crt32u->outputdatalength))
return ret;
}
-static int compatible_ioctls[] = {
- ICAZ90STATUS, Z90QUIESCE, Z90STAT_TOTALCOUNT, Z90STAT_PCICACOUNT,
- Z90STAT_PCICCCOUNT, Z90STAT_PCIXCCCOUNT, Z90STAT_PCIXCCMCL2COUNT,
- Z90STAT_PCIXCCMCL3COUNT, Z90STAT_CEX2CCOUNT, Z90STAT_REQUESTQ_COUNT,
- Z90STAT_PENDINGQ_COUNT, Z90STAT_TOTALOPEN_COUNT, Z90STAT_DOMAIN_INDEX,
- Z90STAT_STATUS_MASK, Z90STAT_QDEPTH_MASK, Z90STAT_PERDEV_REQCNT,
-};
-
-static void z90_unregister_ioctl32s(void)
-{
- int i;
-
- unregister_ioctl32_conversion(ICARSAMODEXPO);
- unregister_ioctl32_conversion(ICARSACRT);
-
- for(i = 0; i < ARRAY_SIZE(compatible_ioctls); i++)
- unregister_ioctl32_conversion(compatible_ioctls[i]);
-}
-
-static int z90_register_ioctl32s(void)
+static long
+z90crypt_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
- int result, i;
-
- result = register_ioctl32_conversion(ICARSAMODEXPO, trans_modexpo32);
- if (result == -EBUSY) {
- unregister_ioctl32_conversion(ICARSAMODEXPO);
- result = register_ioctl32_conversion(ICARSAMODEXPO,
- trans_modexpo32);
- }
- if (result)
- return result;
- result = register_ioctl32_conversion(ICARSACRT, trans_modexpo_crt32);
- if (result == -EBUSY) {
- unregister_ioctl32_conversion(ICARSACRT);
- result = register_ioctl32_conversion(ICARSACRT,
- trans_modexpo_crt32);
- }
- if (result)
- return result;
-
- for(i = 0; i < ARRAY_SIZE(compatible_ioctls); i++) {
- result = register_ioctl32_conversion(compatible_ioctls[i], 0);
- if (result == -EBUSY) {
- unregister_ioctl32_conversion(compatible_ioctls[i]);
- result = register_ioctl32_conversion(
- compatible_ioctls[i], 0);
- }
- if (result)
- return result;
- }
- return 0;
-}
-#else // !CONFIG_COMPAT
-static inline void z90_unregister_ioctl32s(void)
-{
-}
-
-static inline int z90_register_ioctl32s(void)
-{
- return 0;
+ switch (cmd) {
+ case ICAZ90STATUS:
+ case Z90QUIESCE:
+ case Z90STAT_TOTALCOUNT:
+ case Z90STAT_PCICACOUNT:
+ case Z90STAT_PCICCCOUNT:
+ case Z90STAT_PCIXCCCOUNT:
+ case Z90STAT_PCIXCCMCL2COUNT:
+ case Z90STAT_PCIXCCMCL3COUNT:
+ case Z90STAT_CEX2CCOUNT:
+ case Z90STAT_REQUESTQ_COUNT:
+ case Z90STAT_PENDINGQ_COUNT:
+ case Z90STAT_TOTALOPEN_COUNT:
+ case Z90STAT_DOMAIN_INDEX:
+ case Z90STAT_STATUS_MASK:
+ case Z90STAT_QDEPTH_MASK:
+ case Z90STAT_PERDEV_REQCNT:
+ return z90crypt_unlocked_ioctl(filp, cmd, arg);
+ case ICARSAMODEXPO:
+ return trans_modexpo32(filp, cmd, arg);
+ case ICARSACRT:
+ return trans_modexpo_crt32(filp, cmd, arg);
+ default:
+ return -ENOIOCTLCMD;
+ }
}
#endif
return -EINVAL;
}
-#ifndef Z90CRYPT_USE_HOTPLUG
/* Register as misc device with given minor (or get a dynamic one). */
result = misc_register(&z90crypt_misc_device);
if (result < 0) {
z90crypt_misc_device.minor, result);
return result;
}
-#else
- /* Register the major (or get a dynamic one). */
- result = register_chrdev(z90crypt_major, REG_NAME, &z90crypt_fops);
- if (result < 0) {
- PRINTKW("register_chrdev (major %d) failed with %d.\n",
- z90crypt_major, result);
- return result;
- }
-
- if (z90crypt_major == 0)
- z90crypt_major = result;
-#endif
PDEBUG("Registered " DEV_NAME " with result %d\n", result);
} else
PRINTK("No devices at startup\n");
-#ifdef Z90CRYPT_USE_HOTPLUG
- /* generate hotplug event for device node generation */
- z90crypt_hotplug_event(z90crypt_major, 0, Z90CRYPT_HOTPLUG_ADD);
-#endif
-
/* Initialize globals. */
spin_lock_init(&queuespinlock);
reader_timer.expires = jiffies + (READERTIME * HZ / 1000);
add_timer(&reader_timer);
- if ((result = z90_register_ioctl32s()))
- goto init_module_cleanup;
-
return 0; // success
init_module_cleanup:
- z90_unregister_ioctl32s();
-
-#ifndef Z90CRYPT_USE_HOTPLUG
if ((nresult = misc_deregister(&z90crypt_misc_device)))
PRINTK("misc_deregister failed with %d.\n", nresult);
else
PDEBUG("misc_deregister successful.\n");
-#else
- if ((nresult = unregister_chrdev(z90crypt_major, REG_NAME)))
- PRINTK("unregister_chrdev failed with %d.\n", nresult);
- else
- PDEBUG("unregister_chrdev successful.\n");
-#endif
return result; // failure
}
PDEBUG("PID %d\n", PID());
- z90_unregister_ioctl32s();
-
remove_proc_entry("driver/z90crypt", 0);
-#ifndef Z90CRYPT_USE_HOTPLUG
if ((nresult = misc_deregister(&z90crypt_misc_device)))
PRINTK("misc_deregister failed with %d.\n", nresult);
else
PDEBUG("misc_deregister successful.\n");
-#else
- z90crypt_hotplug_event(z90crypt_major, 0, Z90CRYPT_HOTPLUG_REMOVE);
-
- if ((nresult = unregister_chrdev(z90crypt_major, REG_NAME)))
- PRINTK("unregister_chrdev failed with %d.\n", nresult);
- else
- PDEBUG("unregister_chrdev successful.\n");
-#endif
/* Remove the tasks */
tasklet_kill(&reader_tasklet);
* z90crypt_release
* z90crypt_read
* z90crypt_write
- * z90crypt_ioctl
+ * z90crypt_unlocked_ioctl
* z90crypt_status
* z90crypt_status_write
* disable_card
* enable_card
- * scan_char
- * scan_string
*
* Helper functions:
* z90crypt_rsa
* The MCL must be applied and the newer bitlengths enabled for these to work.
*
* Card Type Old limit New limit
+ * PCICA ??-2048 same (the lower limit is less than 128 bit...)
* PCICC 512-1024 512-2048
- * PCIXCC_MCL2 512-2048 no change (applying this MCL == card is MCL3+)
- * PCIXCC_MCL3 512-2048 128-2048
+ * PCIXCC_MCL2 512-2048 ----- (applying any GA LIC will make an MCL3 card)
+ * PCIXCC_MCL3 ----- 128-2048
* CEX2C 512-2048 128-2048
*
* ext_bitlens (extended bitlengths) is a global, since you should not apply an
if (PCICA_avail || PCIXCC_MCL3_avail || CEX2C_avail) {
/**
* bitlength is a factor, PCICA is the most capable, even with
- * the new MCL.
+ * the new MCL for PCIXCC.
*/
if ((bytelength < PCIXCC_MIN_MOD_SIZE) ||
(!ext_bitlens && (bytelength < OLD_PCIXCC_MIN_MOD_SIZE))) {
* This function is a little long, but it's really just one large switch
* statement.
*/
-static int
-z90crypt_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+static long
+z90crypt_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
struct priv_data *private_data_p = filp->private_data;
unsigned char *status;
z90crypt.hdware_info->type_mask[devp->dev_type].user_disabled_count--;
}
-static inline int
-scan_char(unsigned char *bf, unsigned int len,
- unsigned int *offs, unsigned int *p_eof, unsigned char c)
-{
- unsigned int i, found;
-
- found = 0;
- for (i = 0; i < len; i++) {
- if (bf[i] == c) {
- found = 1;
- break;
- }
- if (bf[i] == '\0') {
- *p_eof = 1;
- break;
- }
- if (bf[i] == '\n') {
- break;
- }
- }
- *offs = i+1;
- return found;
-}
-
-static inline int
-scan_string(unsigned char *bf, unsigned int len,
- unsigned int *offs, unsigned int *p_eof, unsigned char *s)
-{
- unsigned int temp_len, temp_offs, found, eof;
-
- temp_len = temp_offs = found = eof = 0;
- while (!eof && !found) {
- found = scan_char(bf+temp_len, len-temp_len,
- &temp_offs, &eof, *s);
-
- temp_len += temp_offs;
- if (eof) {
- found = 0;
- break;
- }
-
- if (found) {
- if (len >= temp_offs+strlen(s)) {
- found = !strncmp(bf+temp_len-1, s, strlen(s));
- if (found) {
- *offs = temp_len+strlen(s)-1;
- break;
- }
- } else {
- found = 0;
- *p_eof = 1;
- break;
- }
- }
- }
- return found;
-}
-
static int
z90crypt_status_write(struct file *file, const char __user *buffer,
unsigned long count, void *data)
{
- int i, j, len, offs, found, eof;
- unsigned char *lbuf;
+ int j, eol;
+ unsigned char *lbuf, *ptr;
unsigned int local_count;
-#define LBUFSIZE 600
+#define LBUFSIZE 1200
lbuf = kmalloc(LBUFSIZE, GFP_KERNEL);
if (!lbuf) {
PRINTK("kmalloc failed!\n");
return -EFAULT;
}
- lbuf[local_count-1] = '\0';
+ lbuf[local_count] = '\0';
- len = 0;
- eof = 0;
- found = 0;
- while (!eof) {
- found = scan_string(lbuf+len, local_count-len, &offs, &eof,
- "Online devices");
- len += offs;
- if (found == 1)
- break;
+ ptr = strstr(lbuf, "Online devices");
+ if (ptr == 0) {
+ PRINTK("Unable to parse data (missing \"Online devices\")\n");
+ kfree(lbuf);
+ return count;
}
- if (eof) {
+ ptr = strstr(ptr, "\n");
+ if (ptr == 0) {
+ PRINTK("Unable to parse data (missing newline after \"Online devices\")\n");
kfree(lbuf);
return count;
}
+ ptr++;
- if (found)
- found = scan_char(lbuf+len, local_count-len, &offs, &eof, '\n');
-
- if (!found || eof) {
+ if (strstr(ptr, "Waiting work element counts") == NULL) {
+ PRINTK("Unable to parse data (missing \"Waiting work element counts\")\n");
kfree(lbuf);
return count;
}
- len += offs;
j = 0;
- for (i = 0; i < 80; i++) {
- switch (*(lbuf+len+i)) {
+ eol = 0;
+ while ((j < 64) && (*ptr != '\0')) {
+ switch (*ptr) {
case '\t':
case ' ':
break;
case '\n':
default:
- eof = 1;
+ eol = 1;
break;
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
+ case '0': // no device
+ case '1': // PCICA
+ case '2': // PCICC
+ case '3': // PCIXCC_MCL2
+ case '4': // PCIXCC_MCL3
+ case '5': // CEX2C
j++;
break;
case 'd':
j++;
break;
}
- if (eof)
+ if (eol)
break;
+ ptr++;
}
kfree(lbuf);
if (dev_ptr) {
disabledFlag = dev_ptr->disabled;
t = dev_ptr->dev_type;
- if (dev_ptr->dev_resp_p)
- kfree(dev_ptr->dev_resp_p);
+ kfree(dev_ptr->dev_resp_p);
kfree(dev_ptr);
} else {
disabledFlag = 0;
destroy_z90crypt(void)
{
int i;
+
for (i = 0; i < z90crypt.max_count; i++)
if (z90crypt.device_p[i])
destroy_crypto_device(i);
- if (z90crypt.hdware_info)
- kfree((void *)z90crypt.hdware_info);
+ kfree(z90crypt.hdware_info);
memset((void *)&z90crypt, 0, sizeof(z90crypt));
}
return rv;
}
-#ifdef Z90CRYPT_USE_HOTPLUG
-static void
-z90crypt_hotplug_event(int dev_major, int dev_minor, int action)
-{
-#ifdef CONFIG_HOTPLUG
- char *argv[3];
- char *envp[6];
- char major[20];
- char minor[20];
-
- sprintf(major, "MAJOR=%d", dev_major);
- sprintf(minor, "MINOR=%d", dev_minor);
-
- argv[0] = hotplug_path;
- argv[1] = "z90crypt";
- argv[2] = 0;
-
- envp[0] = "HOME=/";
- envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
-
- switch (action) {
- case Z90CRYPT_HOTPLUG_ADD:
- envp[2] = "ACTION=add";
- break;
- case Z90CRYPT_HOTPLUG_REMOVE:
- envp[2] = "ACTION=remove";
- break;
- default:
- BUG();
- break;
- }
- envp[3] = major;
- envp[4] = minor;
- envp[5] = 0;
-
- call_usermodehelper(argv[0], argv, envp, 0);
-#endif
-}
-#endif
-
module_init(z90crypt_init_module);
module_exit(z90crypt_cleanup_module);
projects / karo-tx-linux.git / blobdiff