diff mbox series

[v2,5/6] scsi: target: check emulate_3pc for RECEIVE COPY

Message ID 20220905173837.2383-6-d.bogdanov@yadro.com (mailing list archive)
State Superseded, archived
Headers show
Series add support of RSOC command | expand

Commit Message

Dmitry Bogdanov Feb. 19, 2021, 3:06 p.m. UTC 
RECEIVE COPY RESULTS is an opcode from 3rd party copy command set and
shall be rejected if emulate_3pc attribute is off like EXTENDED COPY

Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
---
 drivers/target/target_core_xcopy.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 8713cda0c2fb..edf522208285 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -1009,8 +1009,14 @@  sense_reason_t target_do_receive_copy_results(struct se_cmd *se_cmd)
 {
 	unsigned char *cdb = &se_cmd->t_task_cdb[0];
 	int sa = (cdb[1] & 0x1f), list_id = cdb[2];
+	struct se_device *dev = se_cmd->se_dev;
 	sense_reason_t rc = TCM_NO_SENSE;
 
+	if (!dev->dev_attrib.emulate_3pc) {
+		pr_debug("Third-party copy operations explicitly disabled\n");
+		return TCM_UNSUPPORTED_SCSI_OPCODE;
+	}
+
 	pr_debug("Entering target_do_receive_copy_results: SA: 0x%02x, List ID:"
 		" 0x%02x, AL: %u\n", sa, list_id, se_cmd->data_length);