Messages in this thread Patch in this message | | | Date | Wed, 11 Sep 2013 00:31:18 -0400 | From | Steven Rostedt <> | Subject | [251/251] target: Fix trailing ASCII space usage in INQUIRY vendor+model |
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3.6.11.9-rc1 stable review patch. If anyone has any objections, please let me know.
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From: Nicholas Bellinger <nab@linux-iscsi.org>
[ Upstream commit ee60bddba5a5f23e39598195d944aa0eb2d455e5 ]
This patch fixes spc_emulate_inquiry_std() to add trailing ASCII spaces for INQUIRY vendor + model fields following SPC-4 text:
"ASCII data fields described as being left-aligned shall have any unused bytes at the end of the field (i.e., highest offset) and the unused bytes shall be filled with ASCII space characters (20h)."
This addresses a problem with Falconstor NSS multipathing.
Reported-by: Tomas Molota <tomas.molota@lightstorm.sk> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- drivers/target/target_core_spc.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 6fd434d..290041b 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -100,9 +100,12 @@ static int spc_emulate_inquiry_std(struct se_cmd *cmd, char *buf) buf[7] = 0x2; /* CmdQue=1 */ - snprintf(&buf[8], 8, "LIO-ORG"); - snprintf(&buf[16], 16, "%s", dev->se_sub_dev->t10_wwn.model); - snprintf(&buf[32], 4, "%s", dev->se_sub_dev->t10_wwn.revision); + memcpy(&buf[8], "LIO-ORG ", 8); + memset(&buf[16], 0x20, 16); + memcpy(&buf[16], dev->se_sub_dev->t10_wwn.model, + min_t(size_t, strlen(dev->se_sub_dev->t10_wwn.model), 16)); + memcpy(&buf[32], dev->se_sub_dev->t10_wwn.revision, + min_t(size_t, strlen(dev->se_sub_dev->t10_wwn.revision), 4)); buf[4] = 31; /* Set additional length to 31 */ return 0; -- 1.7.10.4
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