From: Nicholas Bellinger Date: Wed, 24 Jul 2013 23:15:08 +0000 (-0700) Subject: target: Fix trailing ASCII space usage in INQUIRY vendor+model X-Git-Tag: firefly_0821_release~176^2~5467^2~4 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ee60bddba5a5f23e39598195d944aa0eb2d455e5;p=firefly-linux-kernel-4.4.55.git 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 Signed-off-by: Nicholas Bellinger --- 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;