#include <linux/list.h>
#include <linux/genhd.h>
#include <linux/spinlock.h>
-#include <linux/parser.h>
#include <linux/capability.h>
#include <linux/bitops.h>
#include <scsi/scsi.h>
#include <linux/cdrom.h>
-int blk_cmd_filter_verify_command(struct blk_scsi_cmd_filter *filter,
- unsigned char *cmd, mode_t *f_mode)
+int blk_verify_command(struct blk_cmd_filter *filter,
+ unsigned char *cmd, int has_write_perm)
{
/* root can do any command. */
if (capable(CAP_SYS_RAWIO))
return 0;
/* Write-safe commands require a writable open */
- if (test_bit(cmd[0], filter->write_ok) && (*f_mode & FMODE_WRITE))
+ if (test_bit(cmd[0], filter->write_ok) && has_write_perm)
return 0;
return -EPERM;
}
-EXPORT_SYMBOL(blk_cmd_filter_verify_command);
-
-int blk_verify_command(struct file *file, unsigned char *cmd)
-{
- struct gendisk *disk;
- struct inode *inode;
-
- if (!file)
- return -EINVAL;
-
- inode = file->f_dentry->d_inode;
- if (!inode)
- return -EINVAL;
-
- disk = inode->i_bdev->bd_disk;
-
- return blk_cmd_filter_verify_command(&disk->cmd_filter,
- cmd, &file->f_mode);
-}
EXPORT_SYMBOL(blk_verify_command);
+#if 0
/* and now, the sysfs stuff */
-static ssize_t rcf_cmds_show(struct blk_scsi_cmd_filter *filter, char *page,
+static ssize_t rcf_cmds_show(struct blk_cmd_filter *filter, char *page,
int rw)
{
char *npage = page;
for (i = 0; i < BLK_SCSI_MAX_CMDS; i++) {
if (test_bit(i, okbits)) {
- sprintf(npage, "%02x", i);
- npage += 2;
+ npage += sprintf(npage, "0x%02x", i);
if (i < BLK_SCSI_MAX_CMDS - 1)
sprintf(npage++, " ");
}
return npage - page;
}
-static ssize_t rcf_readcmds_show(struct blk_scsi_cmd_filter *filter, char *page)
+static ssize_t rcf_readcmds_show(struct blk_cmd_filter *filter, char *page)
{
return rcf_cmds_show(filter, page, READ);
}
-static ssize_t rcf_writecmds_show(struct blk_scsi_cmd_filter *filter,
+static ssize_t rcf_writecmds_show(struct blk_cmd_filter *filter,
char *page)
{
return rcf_cmds_show(filter, page, WRITE);
}
-static ssize_t rcf_cmds_store(struct blk_scsi_cmd_filter *filter,
+static ssize_t rcf_cmds_store(struct blk_cmd_filter *filter,
const char *page, size_t count, int rw)
{
- ssize_t ret = 0;
unsigned long okbits[BLK_SCSI_CMD_PER_LONG], *target_okbits;
- int cmd, status, len;
- substring_t ss;
-
- memset(&okbits, 0, sizeof(okbits));
-
- for (len = strlen(page); len > 0; len -= 3) {
- if (len < 2)
- break;
- ss.from = (char *) page + ret;
- ss.to = (char *) page + ret + 2;
- ret += 3;
- status = match_hex(&ss, &cmd);
+ int cmd, set;
+ char *p, *status;
+
+ if (rw == READ) {
+ memcpy(&okbits, filter->read_ok, sizeof(okbits));
+ target_okbits = filter->read_ok;
+ } else {
+ memcpy(&okbits, filter->write_ok, sizeof(okbits));
+ target_okbits = filter->write_ok;
+ }
+
+ while ((p = strsep((char **)&page, " ")) != NULL) {
+ set = 1;
+
+ if (p[0] == '+') {
+ p++;
+ } else if (p[0] == '-') {
+ set = 0;
+ p++;
+ }
+
+ cmd = simple_strtol(p, &status, 16);
+
/* either of these cases means invalid input, so do nothing. */
- if (status || cmd >= BLK_SCSI_MAX_CMDS)
+ if ((status == p) || cmd >= BLK_SCSI_MAX_CMDS)
return -EINVAL;
- __set_bit(cmd, okbits);
+ if (set)
+ __set_bit(cmd, okbits);
+ else
+ __clear_bit(cmd, okbits);
}
- if (rw == READ)
- target_okbits = filter->read_ok;
- else
- target_okbits = filter->write_ok;
-
- memmove(target_okbits, okbits, sizeof(okbits));
+ memcpy(target_okbits, okbits, sizeof(okbits));
return count;
}
-static ssize_t rcf_readcmds_store(struct blk_scsi_cmd_filter *filter,
+static ssize_t rcf_readcmds_store(struct blk_cmd_filter *filter,
const char *page, size_t count)
{
return rcf_cmds_store(filter, page, count, READ);
}
-static ssize_t rcf_writecmds_store(struct blk_scsi_cmd_filter *filter,
+static ssize_t rcf_writecmds_store(struct blk_cmd_filter *filter,
const char *page, size_t count)
{
return rcf_cmds_store(filter, page, count, WRITE);
struct rcf_sysfs_entry {
struct attribute attr;
- ssize_t (*show)(struct blk_scsi_cmd_filter *, char *);
- ssize_t (*store)(struct blk_scsi_cmd_filter *, const char *, size_t);
+ ssize_t (*show)(struct blk_cmd_filter *, char *);
+ ssize_t (*store)(struct blk_cmd_filter *, const char *, size_t);
};
static struct rcf_sysfs_entry rcf_readcmds_entry = {
rcf_attr_show(struct kobject *kobj, struct attribute *attr, char *page)
{
struct rcf_sysfs_entry *entry = to_rcf(attr);
- struct blk_scsi_cmd_filter *filter;
+ struct blk_cmd_filter *filter;
- filter = container_of(kobj, struct blk_scsi_cmd_filter, kobj);
+ filter = container_of(kobj, struct blk_cmd_filter, kobj);
if (entry->show)
return entry->show(filter, page);
const char *page, size_t length)
{
struct rcf_sysfs_entry *entry = to_rcf(attr);
- struct blk_scsi_cmd_filter *filter;
+ struct blk_cmd_filter *filter;
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
if (!entry->store)
return -EINVAL;
- filter = container_of(kobj, struct blk_scsi_cmd_filter, kobj);
+ filter = container_of(kobj, struct blk_cmd_filter, kobj);
return entry->store(filter, page, length);
}
.default_attrs = default_attrs,
};
-#ifndef MAINTENANCE_IN_CMD
-#define MAINTENANCE_IN_CMD 0xa3
-#endif
-
-static void rcf_set_defaults(struct blk_scsi_cmd_filter *filter)
-{
- /* Basic read-only commands */
- __set_bit(TEST_UNIT_READY, filter->read_ok);
- __set_bit(REQUEST_SENSE, filter->read_ok);
- __set_bit(READ_6, filter->read_ok);
- __set_bit(READ_10, filter->read_ok);
- __set_bit(READ_12, filter->read_ok);
- __set_bit(READ_16, filter->read_ok);
- __set_bit(READ_BUFFER, filter->read_ok);
- __set_bit(READ_DEFECT_DATA, filter->read_ok);
- __set_bit(READ_CAPACITY, filter->read_ok);
- __set_bit(READ_LONG, filter->read_ok);
- __set_bit(INQUIRY, filter->read_ok);
- __set_bit(MODE_SENSE, filter->read_ok);
- __set_bit(MODE_SENSE_10, filter->read_ok);
- __set_bit(LOG_SENSE, filter->read_ok);
- __set_bit(START_STOP, filter->read_ok);
- __set_bit(GPCMD_VERIFY_10, filter->read_ok);
- __set_bit(VERIFY_16, filter->read_ok);
- __set_bit(REPORT_LUNS, filter->read_ok);
- __set_bit(SERVICE_ACTION_IN, filter->read_ok);
- __set_bit(RECEIVE_DIAGNOSTIC, filter->read_ok);
- __set_bit(MAINTENANCE_IN_CMD, filter->read_ok);
- __set_bit(GPCMD_READ_BUFFER_CAPACITY, filter->read_ok);
-
- /* Audio CD commands */
- __set_bit(GPCMD_PLAY_CD, filter->read_ok);
- __set_bit(GPCMD_PLAY_AUDIO_10, filter->read_ok);
- __set_bit(GPCMD_PLAY_AUDIO_MSF, filter->read_ok);
- __set_bit(GPCMD_PLAY_AUDIO_TI, filter->read_ok);
- __set_bit(GPCMD_PAUSE_RESUME, filter->read_ok);
-
- /* CD/DVD data reading */
- __set_bit(GPCMD_READ_CD, filter->read_ok);
- __set_bit(GPCMD_READ_CD_MSF, filter->read_ok);
- __set_bit(GPCMD_READ_DISC_INFO, filter->read_ok);
- __set_bit(GPCMD_READ_CDVD_CAPACITY, filter->read_ok);
- __set_bit(GPCMD_READ_DVD_STRUCTURE, filter->read_ok);
- __set_bit(GPCMD_READ_HEADER, filter->read_ok);
- __set_bit(GPCMD_READ_TRACK_RZONE_INFO, filter->read_ok);
- __set_bit(GPCMD_READ_SUBCHANNEL, filter->read_ok);
- __set_bit(GPCMD_READ_TOC_PMA_ATIP, filter->read_ok);
- __set_bit(GPCMD_REPORT_KEY, filter->read_ok);
- __set_bit(GPCMD_SCAN, filter->read_ok);
- __set_bit(GPCMD_GET_CONFIGURATION, filter->read_ok);
- __set_bit(GPCMD_READ_FORMAT_CAPACITIES, filter->read_ok);
- __set_bit(GPCMD_GET_EVENT_STATUS_NOTIFICATION, filter->read_ok);
- __set_bit(GPCMD_GET_PERFORMANCE, filter->read_ok);
- __set_bit(GPCMD_SEEK, filter->read_ok);
- __set_bit(GPCMD_STOP_PLAY_SCAN, filter->read_ok);
-
- /* Basic writing commands */
- __set_bit(WRITE_6, filter->write_ok);
- __set_bit(WRITE_10, filter->write_ok);
- __set_bit(WRITE_VERIFY, filter->write_ok);
- __set_bit(WRITE_12, filter->write_ok);
- __set_bit(WRITE_VERIFY_12, filter->write_ok);
- __set_bit(WRITE_16, filter->write_ok);
- __set_bit(WRITE_LONG, filter->write_ok);
- __set_bit(WRITE_LONG_2, filter->write_ok);
- __set_bit(ERASE, filter->write_ok);
- __set_bit(GPCMD_MODE_SELECT_10, filter->write_ok);
- __set_bit(MODE_SELECT, filter->write_ok);
- __set_bit(LOG_SELECT, filter->write_ok);
- __set_bit(GPCMD_BLANK, filter->write_ok);
- __set_bit(GPCMD_CLOSE_TRACK, filter->write_ok);
- __set_bit(GPCMD_FLUSH_CACHE, filter->write_ok);
- __set_bit(GPCMD_FORMAT_UNIT, filter->write_ok);
- __set_bit(GPCMD_REPAIR_RZONE_TRACK, filter->write_ok);
- __set_bit(GPCMD_RESERVE_RZONE_TRACK, filter->write_ok);
- __set_bit(GPCMD_SEND_DVD_STRUCTURE, filter->write_ok);
- __set_bit(GPCMD_SEND_EVENT, filter->write_ok);
- __set_bit(GPCMD_SEND_KEY, filter->write_ok);
- __set_bit(GPCMD_SEND_OPC, filter->write_ok);
- __set_bit(GPCMD_SEND_CUE_SHEET, filter->write_ok);
- __set_bit(GPCMD_SET_SPEED, filter->write_ok);
- __set_bit(GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL, filter->write_ok);
- __set_bit(GPCMD_LOAD_UNLOAD, filter->write_ok);
- __set_bit(GPCMD_SET_STREAMING, filter->write_ok);
-}
-
int blk_register_filter(struct gendisk *disk)
{
int ret;
- struct blk_scsi_cmd_filter *filter = &disk->cmd_filter;
+ struct blk_cmd_filter *filter = &disk->queue->cmd_filter;
struct kobject *parent = kobject_get(disk->holder_dir->parent);
if (!parent)
return -ENODEV;
ret = kobject_init_and_add(&filter->kobj, &rcf_ktype, parent,
- "%s", "cmd_filter");
+ "%s", "cmd_filter");
if (ret < 0)
return ret;
- rcf_set_defaults(filter);
return 0;
}
+EXPORT_SYMBOL(blk_register_filter);
void blk_unregister_filter(struct gendisk *disk)
{
- struct blk_scsi_cmd_filter *filter = &disk->cmd_filter;
+ struct blk_cmd_filter *filter = &disk->queue->cmd_filter;
kobject_put(&filter->kobj);
kobject_put(disk->holder_dir->parent);
}
-
+EXPORT_SYMBOL(blk_unregister_filter);
+#endif
git.openpandora.org / pandora-kernel.git / blobdiff