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| author | David Zeuthen <davidz@redhat.com> | 2009-12-04 11:25:09 -0500 |
|---|---|---|
| committer | David Zeuthen <davidz@redhat.com> | 2009-12-04 11:40:00 -0500 |
| commit | 7f4954d04026f28b0ebe65a514f06fefad8efaca (patch) | |
| tree | cd7b920ae51dd2c4663ad983e90ea3774ea68bb8 /extras/ata_id/ata_id.c | |
| parent | 07fb7fce66a101b22c3e121e3ee99438db798b8e (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.c | 5 |
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') |