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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-10-07 18:05:14 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-10-09 01:54:44 -0700 |
| commit | acb3f2600eb8cdd35643a8b9237719ce61c98d41 (patch) | |
| tree | 38d93b11145669f061c84bac3932b9c9b9c08f32 /drivers/target | |
| parent | 3f7a46c67440a7fa422919ab2059cbab838ca558 (diff) | |
| download | linux-acb3f2600eb8cdd35643a8b9237719ce61c98d41.tar.gz linux-acb3f2600eb8cdd35643a8b9237719ce61c98d41.tar.bz2 linux-acb3f2600eb8cdd35643a8b9237719ce61c98d41.zip | |
target: Reject EXTENDED_COPY when emulate_3pc is disabled
This patch rejects EXTENDED_COPY when the emulate_3pc attribute has
been explicitly disabled for the receiving device.
It also adds a similar check in target_xcopy_locate_se_dev_e4() to
ignore these devices when doing a search based upon the identifier
WWN provided by EXTENDED_COPY parameter list target descriptors.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_xcopy.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c index fe985559eeb8..eeeaf99387ce 100644 --- a/drivers/target/target_core_xcopy.c +++ b/drivers/target/target_core_xcopy.c @@ -82,6 +82,9 @@ static int target_xcopy_locate_se_dev_e4(struct se_cmd *se_cmd, struct xcopy_op mutex_lock(&g_device_mutex); list_for_each_entry(se_dev, &g_device_list, g_dev_node) { + if (!se_dev->dev_attrib.emulate_3pc) + continue; + memset(&tmp_dev_wwn[0], 0, XCOPY_NAA_IEEE_REGEX_LEN); target_xcopy_gen_naa_ieee(se_dev, &tmp_dev_wwn[0]); @@ -884,12 +887,18 @@ out: sense_reason_t target_do_xcopy(struct se_cmd *se_cmd) { + struct se_device *dev = se_cmd->se_dev; struct xcopy_op *xop = NULL; unsigned char *p = NULL, *seg_desc; unsigned int list_id, list_id_usage, sdll, inline_dl, sa; int rc; unsigned short tdll; + if (!dev->dev_attrib.emulate_3pc) { + pr_err("EXTENDED_COPY operation explicitly disabled\n"); + return TCM_UNSUPPORTED_SCSI_OPCODE; + } + sa = se_cmd->t_task_cdb[1] & 0x1f; if (sa != 0x00) { pr_err("EXTENDED_COPY(LID4) not supported\n"); |