hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

target: accept REQUEST_SENSE with 18bytes 

WindowsXP+BOT issues a MODE_SENSE request with page 0x1c which is not
suppoerted by target. Target rejects that command with
TCM_INVALID_CDB_FIELD, so far so good. On BOT I can't send the SENSE
response back, instead I can only reply that an error occured. The next
thing happens is a REQUEST_SENSE request with 18 bytes length. Since the
check here is more than 18 bytes I have to NACK that request as well.
This is not really required: We check for some additional room, but we
never use it. The additional length is set to 0xa so the total length is
0xa + 8 = 18 which is fine with my 18 bytes.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Sebastian Andrzej Siewior 2012-01-18 14:04:29 +01:00 committed by Nicholas Bellinger
parent bf0053550a
commit 95fe1ee41e
1 changed files with 4 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/target/target_core_cdb.c
View File

@ -1058,11 +1058,8 @@ int target_emulate_request_sense(struct se_task *task)
*/
buf[0] = 0x70;
buf[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION;
/*
* Make sure request data length is enough for additional
* sense data.
*/
if (cmd->data_length <= 18) {
if (cmd->data_length < 18) {
buf[7] = 0x00;
err = -EINVAL;
goto end;
@ -1079,11 +1076,8 @@ int target_emulate_request_sense(struct se_task *task)
*/
buf[0] = 0x70;
buf[SPC_SENSE_KEY_OFFSET] = NO_SENSE;
/*
* Make sure request data length is enough for additional
* sense data.
*/
if (cmd->data_length <= 18) {
if (cmd->data_length < 18) {
buf[7] = 0x00;
err = -EINVAL;
goto end;