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authorNicholas Bellinger <nab@linux-iscsi.org>2013-07-24 16:15:08 -0700
committerNicholas Bellinger <nab@linux-iscsi.org>2013-08-12 19:11:26 -0700
commitee60bddba5a5f23e39598195d944aa0eb2d455e5 (patch)
tree788ed8b352b0c5aa179e7b19692555a0ed36adc8 /drivers/target
parentd4e4ab86bcba5a72779c43dc1459f71fea3d89c8 (diff)
downloadlinux-ee60bddba5a5f23e39598195d944aa0eb2d455e5.tar.bz2
target: Fix trailing ASCII space usage in INQUIRY vendor+model
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>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/target_core_spc.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 4cb667d720a7..9fabbf7214cd 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -97,9 +97,12 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf)
buf[7] = 0x2; /* CmdQue=1 */
- snprintf(&buf[8], 8, "LIO-ORG");
- snprintf(&buf[16], 16, "%s", dev->t10_wwn.model);
- snprintf(&buf[32], 4, "%s", dev->t10_wwn.revision);
+ memcpy(&buf[8], "LIO-ORG ", 8);
+ memset(&buf[16], 0x20, 16);
+ memcpy(&buf[16], dev->t10_wwn.model,
+ min_t(size_t, strlen(dev->t10_wwn.model), 16));
+ memcpy(&buf[32], dev->t10_wwn.revision,
+ min_t(size_t, strlen(dev->t10_wwn.revision), 4));
buf[4] = 31; /* Set additional length to 31 */
return 0;