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authorDavid Zeuthen <davidz@redhat.com>2009-12-04 11:25:09 -0500
committerDavid Zeuthen <davidz@redhat.com>2009-12-04 11:40:00 -0500
commit7f4954d04026f28b0ebe65a514f06fefad8efaca (patch)
treecd7b920ae51dd2c4663ad983e90ea3774ea68bb8 /extras/ata_id/ata_id.c
parent07fb7fce66a101b22c3e121e3ee99438db798b8e (diff)
Export ID_WWN_VENDOR_EXTENSION and ID_WWN_WITH_EXTENSION
Some SCSI devices use the same WWN and have a WWN extension that we need to take into account when creating the /dev/disk/by-id/wwn symlinks. Thus, introduce ID_WWN_WITH_EXTENSION. This property will contain either the WWN (if no extension is present) or the WWN with the vendor extension appended. Example: # /lib/udev/ata_id/ata_id --export /dev/sda |grep WWN ID_WWN=0x5001517387d61905 ID_WWN_WITH_EXTENSION=0x5001517387d61905 # /lib/udev/scsi_id --whitelisted --export -d /dev/sdb |grep WWN ID_WWN=0x600508b400105df7 ID_WWN_VENDOR_EXTENSION=0x0000e00000d80000 ID_WWN_WITH_EXTENSION=0x600508b400105df70000e00000d80000 # /lib/udev/scsi_id --whitelisted --export -d /dev/sdc |grep WWN ID_WWN=0x600508b400105df7 ID_WWN_VENDOR_EXTENSION=0x0000e00000db0000 ID_WWN_WITH_EXTENSION=0x600508b400105df70000e00000db0000 Signed-off-by: David Zeuthen <davidz@redhat.com>
Diffstat (limited to 'extras/ata_id/ata_id.c')
-rw-r--r--extras/ata_id/ata_id.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/extras/ata_id/ata_id.c b/extras/ata_id/ata_id.c
index cbd3b5b8d2..25c7710127 100644
--- a/extras/ata_id/ata_id.c
+++ b/extras/ata_id/ata_id.c
@@ -1,4 +1,5 @@
-/*
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
* ata_id - reads product/serial number from ATA drives
*
* Copyright (C) 2005-2008 Kay Sievers <kay.sievers@vrfy.org>
@@ -520,6 +521,8 @@ int main(int argc, char *argv[])
wwwn <<= 16;
wwwn |= *((uint16_t *) identify + 111);
printf("ID_WWN=0x%llx\n", (unsigned long long int) wwwn);
+ /* ATA devices have no vendor extension */
+ printf("ID_WWN_WITH_EXTENSION=0x%llx\n", (unsigned long long int) wwwn);
}
} else {
if (serial[0] != '\0')