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Message-Id: <1369317575-4236-2-git-send-email-pbonzini@redhat.com>
Date: Thu, 23 May 2013 15:59:29 +0200
From: Paolo Bonzini <pbonzini@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: tj@...nel.org, "James E.J. Bottomley" <JBottomley@...allels.com>,
linux-scsi@...r.kernel.org, Jens Axboe <axboe@...nel.dk>
Subject: [PATCH v3 part3 1/7] sg_io: complete transition to per-class lists of allowed commands
After this patch, a few commands are forbidden for devices of type other than
TYPE_ROM, where they are reserved, vendor-specific. This avoids that
future version of the standards introduce unwanted conficts.
One command (READ CAPACITY) was listed twice in the old table (once
as READ_CAPACITY, once as GPCMD_READ_CDVD_CAPACITY), hence the new table
has one entry less than the old one. The old table has 72 entries, the
new one has 71.
Note that TYPE_SCANNER is not subject to the whitelist, so it is not
included at all.
Of course, checkpatch hates this table. It has long lines and
non-standard spacing. IMO the improved readability trumps the problems
reported by checkpatch.
Cc: "James E.J. Bottomley" <JBottomley@...allels.com>
Cc: linux-scsi@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>
Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
---
block/scsi_ioctl.c | 207 +++++++++++++++++++++++++++++++---------------------
include/scsi/scsi.h | 3 +
2 files changed, 128 insertions(+), 82 deletions(-)
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 0af98fe..5d2143f 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -116,88 +116,131 @@ static int sg_emulated_host(struct request_queue *q, int __user *p)
static void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter)
{
-#define sgio_bitmap_set(cmd, rw) \
- filter->rw##_ok[(cmd)] = ~0;
-
- /* Basic read-only commands */
- sgio_bitmap_set(TEST_UNIT_READY, read);
- sgio_bitmap_set(REQUEST_SENSE, read);
- sgio_bitmap_set(READ_6, read);
- sgio_bitmap_set(READ_10, read);
- sgio_bitmap_set(READ_12, read);
- sgio_bitmap_set(READ_16, read);
- sgio_bitmap_set(READ_BUFFER, read);
- sgio_bitmap_set(READ_DEFECT_DATA, read);
- sgio_bitmap_set(READ_CAPACITY, read);
- sgio_bitmap_set(READ_LONG, read);
- sgio_bitmap_set(INQUIRY, read);
- sgio_bitmap_set(MODE_SENSE, read);
- sgio_bitmap_set(MODE_SENSE_10, read);
- sgio_bitmap_set(LOG_SENSE, read);
- sgio_bitmap_set(START_STOP, read);
- sgio_bitmap_set(GPCMD_VERIFY_10, read);
- sgio_bitmap_set(VERIFY_16, read);
- sgio_bitmap_set(REPORT_LUNS, read);
- sgio_bitmap_set(SERVICE_ACTION_IN, read);
- sgio_bitmap_set(RECEIVE_DIAGNOSTIC, read);
- sgio_bitmap_set(MAINTENANCE_IN, read);
- sgio_bitmap_set(GPCMD_READ_BUFFER_CAPACITY, read);
-
- /* Audio CD commands */
- sgio_bitmap_set(GPCMD_PLAY_CD, read);
- sgio_bitmap_set(GPCMD_PLAY_AUDIO_10, read);
- sgio_bitmap_set(GPCMD_PLAY_AUDIO_MSF, read);
- sgio_bitmap_set(GPCMD_PLAY_AUDIO_TI, read);
- sgio_bitmap_set(GPCMD_PAUSE_RESUME, read);
-
- /* CD/DVD data reading */
- sgio_bitmap_set(GPCMD_READ_CD, read);
- sgio_bitmap_set(GPCMD_READ_CD_MSF, read);
- sgio_bitmap_set(GPCMD_READ_DISC_INFO, read);
- sgio_bitmap_set(GPCMD_READ_CDVD_CAPACITY, read);
- sgio_bitmap_set(GPCMD_READ_DVD_STRUCTURE, read);
- sgio_bitmap_set(GPCMD_READ_HEADER, read);
- sgio_bitmap_set(GPCMD_READ_TRACK_RZONE_INFO, read);
- sgio_bitmap_set(GPCMD_READ_SUBCHANNEL, read);
- sgio_bitmap_set(GPCMD_READ_TOC_PMA_ATIP, read);
- sgio_bitmap_set(GPCMD_REPORT_KEY, read);
- sgio_bitmap_set(GPCMD_SCAN, read);
- sgio_bitmap_set(GPCMD_GET_CONFIGURATION, read);
- sgio_bitmap_set(GPCMD_READ_FORMAT_CAPACITIES, read);
- sgio_bitmap_set(GPCMD_GET_EVENT_STATUS_NOTIFICATION, read);
- sgio_bitmap_set(GPCMD_GET_PERFORMANCE, read);
- sgio_bitmap_set(GPCMD_SEEK, read);
- sgio_bitmap_set(GPCMD_STOP_PLAY_SCAN, read);
-
- /* Basic writing commands */
- sgio_bitmap_set(WRITE_6, write);
- sgio_bitmap_set(WRITE_10, write);
- sgio_bitmap_set(WRITE_VERIFY, write);
- sgio_bitmap_set(WRITE_12, write);
- sgio_bitmap_set(WRITE_VERIFY_12, write);
- sgio_bitmap_set(WRITE_16, write);
- sgio_bitmap_set(WRITE_LONG, write);
- sgio_bitmap_set(WRITE_LONG_2, write);
- sgio_bitmap_set(ERASE, write);
- sgio_bitmap_set(GPCMD_MODE_SELECT_10, write);
- sgio_bitmap_set(MODE_SELECT, write);
- sgio_bitmap_set(LOG_SELECT, write);
- sgio_bitmap_set(GPCMD_BLANK, write);
- sgio_bitmap_set(GPCMD_CLOSE_TRACK, write);
- sgio_bitmap_set(GPCMD_FLUSH_CACHE, write);
- sgio_bitmap_set(GPCMD_FORMAT_UNIT, write);
- sgio_bitmap_set(GPCMD_REPAIR_RZONE_TRACK, write);
- sgio_bitmap_set(GPCMD_RESERVE_RZONE_TRACK, write);
- sgio_bitmap_set(GPCMD_SEND_DVD_STRUCTURE, write);
- sgio_bitmap_set(GPCMD_SEND_EVENT, write);
- sgio_bitmap_set(GPCMD_SEND_KEY, write);
- sgio_bitmap_set(GPCMD_SEND_OPC, write);
- sgio_bitmap_set(GPCMD_SEND_CUE_SHEET, write);
- sgio_bitmap_set(GPCMD_SET_SPEED, write);
- sgio_bitmap_set(GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL, write);
- sgio_bitmap_set(GPCMD_LOAD_UNLOAD, write);
- sgio_bitmap_set(GPCMD_SET_STREAMING, write);
- sgio_bitmap_set(GPCMD_SET_READ_AHEAD, write);
+#define sgio_bitmap_set(cmd, mask, rw) \
+ filter->rw##_ok[(cmd)] |= (mask);
+
+#define D (1u << TYPE_DISK) /* Direct Access Block Device (SBC-3) */
+#define T (1u << TYPE_TAPE) /* Sequential Access Device (SSC-3) */
+#define L (1u << TYPE_PRINTER) /* Printer Device (SSC) */
+#define P (1u << TYPE_PROCESSOR) /* Processor Device (SPC-2) */
+#define W (1u << TYPE_WORM) /* Write Once Block Device (SBC) */
+#define R (1u << TYPE_ROM) /* C/DVD Device (MMC-6) */
+#define O (1u << TYPE_MOD) /* Optical Memory Block Device (SBC) */
+#define M (1u << TYPE_MEDIUM_CHANGER) /* Media Changer Device (SMC-3) */
+#define A (1u << TYPE_RAID) /* Storage Array Device (SCC-2) */
+#define E (1u << TYPE_ENCLOSURE) /* SCSI Enclosure Services device (SES-2) */
+#define B (1u << TYPE_RBC) /* Simplified Direct-Access (Reduced Block) device (RBC) */
+#define K (1u << TYPE_OCRW) /* Optical Card Reader/Writer device (OCRW) */
+#define V (1u << TYPE_ADC) /* Automation/Device Interface device (ADC-2) */
+#define F (1u << TYPE_OSD) /* Object-based Storage Device (OSD-2) */
+
+#define C (1u << TYPE_COMM) /* Communication devices (obsolete) */
+
+ /* control, read */
+
+ sgio_bitmap_set(0x00, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* TEST UNIT READY */
+ sgio_bitmap_set(0x03, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* REQUEST SENSE */
+ sgio_bitmap_set(0x12, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* INQUIRY */
+ sgio_bitmap_set(0x1A, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* MODE SENSE(6) */
+ sgio_bitmap_set(0x1B, D|T|L| W|R|O|M|A| B|K|V|F , read); /* START STOP UNIT */
+ sgio_bitmap_set(0x1C, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* RECEIVE DIAGNOSTIC RESULTS */
+ sgio_bitmap_set(0x2B, D|T| W|R|O|M| K , read); /* SEEK(10) */
+ sgio_bitmap_set(0x3C, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* READ BUFFER */
+ sgio_bitmap_set(0x4D, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* LOG SENSE */
+ sgio_bitmap_set(0x5A, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* MODE SENSE(10) */
+ sgio_bitmap_set(0x9E, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* SERVICE ACTION IN(16) */
+ sgio_bitmap_set(0xA0, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* REPORT LUNS */
+ sgio_bitmap_set(0xA3, D|T|L| W| O|M|A|E|B|K|V , read); /* MAINTENANCE IN */
+
+ /* control, write */
+
+ sgio_bitmap_set(0x15, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, write); /* MODE SELECT(6) */
+ sgio_bitmap_set(0x4C, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, write); /* LOG SELECT */
+ sgio_bitmap_set(0x55, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, write); /* MODE SELECT(10) */
+ sgio_bitmap_set(0x1E, D|T| W|R|O|M| K| F , write); /* PREVENT ALLOW MEDIUM REMOVAL */
+
+ /* read */
+
+ sgio_bitmap_set(0x08, D|T| P|W| O| C, read); /* READ(6) */
+ sgio_bitmap_set(0x25, D| W|R|O| B|K , read); /* READ CAPACITY(10) */
+ sgio_bitmap_set(0x28, D| W|R|O| B|K| C, read); /* READ(10) */
+ sgio_bitmap_set(0x2F, D| W|R|O , read); /* VERIFY(10) */
+ sgio_bitmap_set(0x37, D| O|M , read); /* READ DEFECT DATA(10) */
+ sgio_bitmap_set(0x3E, D| W| O , read); /* READ LONG(10) */
+ sgio_bitmap_set(0x88, D|T| W| O| B , read); /* READ(16) */
+ sgio_bitmap_set(0x8F, D|T| W| O| B , read); /* VERIFY(16) */
+ sgio_bitmap_set(0xA8, D| W|R|O| C, read); /* READ(12) */
+
+ /* write */
+
+ sgio_bitmap_set(0x04, D|T|L| R|O , write); /* FORMAT UNIT */
+ sgio_bitmap_set(0x0A, D|T|L|P|W| O| C, write); /* WRITE(6) */
+ sgio_bitmap_set(0x2A, D| W|R|O| B|K| C, write); /* WRITE(10) */
+ sgio_bitmap_set(0x2E, D| W|R|O| B|K , write); /* WRITE AND VERIFY(10) */
+ sgio_bitmap_set(0x35, D| W|R|O| B|K , write); /* SYNCHRONIZE CACHE(10) */
+ sgio_bitmap_set(0x3F, D| W| O , write); /* WRITE LONG(10) */
+ sgio_bitmap_set(0x8A, D|T| W| O| B , write); /* WRITE(16) */
+ sgio_bitmap_set(0xAA, D| W|R|O| C, write); /* WRITE(12) */
+ sgio_bitmap_set(0xAE, D| W| O , write); /* WRITE AND VERIFY(12) */
+ sgio_bitmap_set(0xEA, D| W| O , write); /* WRITE_LONG_2 ?? */
+
+ /* MMC */
+
+ sgio_bitmap_set(0x23, R , read); /* READ FORMAT CAPACITIES */
+ sgio_bitmap_set(0x42, D| R , read); /* READ SUB-CHANNEL / UNMAP !! */
+ sgio_bitmap_set(0x43, R , read); /* READ TOC/PMA/ATIP */
+ sgio_bitmap_set(0x44, T| R , read); /* READ HEADER */
+ sgio_bitmap_set(0x45, R , read); /* PLAY AUDIO(10) */
+ sgio_bitmap_set(0x46, R , read); /* GET CONFIGURATION */
+ sgio_bitmap_set(0x47, R , read); /* PLAY AUDIO MSF */
+ sgio_bitmap_set(0x48, D| R| B , read); /* PLAY AUDIO TI / SANITIZE !! */
+ sgio_bitmap_set(0x4A, R , read); /* GET EVENT STATUS NOTIFICATION */
+ sgio_bitmap_set(0x4B, R , read); /* PAUSE/RESUME */
+ sgio_bitmap_set(0x4E, R , read); /* STOP PLAY/SCAN */
+ sgio_bitmap_set(0x51, D| R , read); /* READ DISC INFORMATION / XPWRITE(10) !! */
+ sgio_bitmap_set(0x52, R , read); /* READ TRACK INFORMATION */
+ sgio_bitmap_set(0x5C, R , read); /* READ BUFFER CAPACITY */
+ sgio_bitmap_set(0xA4, D|T|L|P|W|R|O|M|A|E|B|K|V|F|C, read); /* REPORT KEY / 0xA4 service actions !! */
+ sgio_bitmap_set(0xAC, R|O , read); /* GET PERFORMANCE / ERASE !! */
+ sgio_bitmap_set(0xAD, R , read); /* READ DVD STRUCTURE */
+ sgio_bitmap_set(0xB9, R , read); /* READ CD MSF */
+ sgio_bitmap_set(0xBA, R , read); /* SCAN */
+ sgio_bitmap_set(0xBC, R , read); /* PLAY CD */
+ sgio_bitmap_set(0xBE, R , read); /* READ CD */
+
+ sgio_bitmap_set(0x53, D| R , write); /* RESERVE TRACK / XDWRITEREAD(10) */
+ sgio_bitmap_set(0x54, R , write); /* SEND OPC INFORMATION */
+ sgio_bitmap_set(0x58, R , write); /* REPAIR TRACK */
+ sgio_bitmap_set(0x5B, R , write); /* CLOSE TRACK/SESSION */
+ sgio_bitmap_set(0x5D, R , write); /* SEND CUE SHEET */
+ sgio_bitmap_set(0xA1, D| R| B , write); /* BLANK / ATA PASS-THROUGH(12) */
+ sgio_bitmap_set(0xA2, R , write); /* SEND EVENT */
+ sgio_bitmap_set(0xA3, R , write); /* SEND KEY */
+ sgio_bitmap_set(0xA6, R| M , write); /* LOAD/UNLOAD C/DVD */
+ sgio_bitmap_set(0xA7, R , write); /* SET READ AHEAD */
+ sgio_bitmap_set(0xB6, R| M , write); /* SET STREAMING */
+ sgio_bitmap_set(0xBB, R , write); /* SET CD SPEED */
+ sgio_bitmap_set(0xBF, R , write); /* SEND DVD STRUCTURE */
+
+ /* tape */
+
+ sgio_bitmap_set(0x19, T , write); /* ERASE(6) */
+
+#undef D
+#undef T
+#undef L
+#undef P
+#undef W
+#undef R
+#undef O
+#undef M
+#undef C
+#undef A
+#undef E
+#undef B
+#undef K
+#undef V
+#undef F
#undef sgio_bitmap_set
/*
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 66216c1..06cc93e 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -324,7 +324,10 @@ static inline int scsi_status_is_good(int status)
#define TYPE_RAID 0x0c
#define TYPE_ENCLOSURE 0x0d /* Enclosure Services Device */
#define TYPE_RBC 0x0e
+#define TYPE_OCRW 0x0f
+#define TYPE_ADC 0x10
#define TYPE_OSD 0x11
+#define TYPE_MAX 0x1f
#define TYPE_NO_LUN 0x7f
/* SCSI protocols; these are taken from SPC-3 section 7.5 */
--
1.8.1.4
--
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