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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>
This commit is contained in:
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07fb7fce66
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7f4954d040
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@ -1,4 +1,5 @@
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/*
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
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*
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* ata_id - reads product/serial number from ATA drives
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*
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* Copyright (C) 2005-2008 Kay Sievers <kay.sievers@vrfy.org>
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@ -520,6 +521,8 @@ int main(int argc, char *argv[])
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wwwn <<= 16;
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wwwn |= *((uint16_t *) identify + 111);
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printf("ID_WWN=0x%llx\n", (unsigned long long int) wwwn);
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/* ATA devices have no vendor extension */
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printf("ID_WWN_WITH_EXTENSION=0x%llx\n", (unsigned long long int) wwwn);
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}
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} else {
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if (serial[0] != '\0')
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@ -1,4 +1,5 @@
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/*
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
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*
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* scsi_id.c
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*
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* Main section of the scsi_id program
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@ -566,6 +567,12 @@ static int scsi_id(struct udev *udev, char *maj_min_dev)
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}
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if (dev_scsi.wwn[0] != '\0') {
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printf("ID_WWN=0x%s\n", dev_scsi.wwn);
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if (dev_scsi.wwn_vendor_extension[0] != '\0') {
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printf("ID_WWN_VENDOR_EXTENSION=0x%s\n", dev_scsi.wwn_vendor_extension);
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printf("ID_WWN_WITH_EXTENSION=0x%s%s\n", dev_scsi.wwn, dev_scsi.wwn_vendor_extension);
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} else {
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printf("ID_WWN_WITH_EXTENSION=0x%s\n", dev_scsi.wwn);
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}
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}
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if (dev_scsi.unit_serial_number[0] != '\0') {
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printf("ID_SCSI_SERIAL=%s\n", dev_scsi.unit_serial_number);
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@ -1,4 +1,5 @@
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/*
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
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*
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* scsi_id.h
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*
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* General defines and such for scsi_id
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@ -45,6 +46,9 @@ struct scsi_id_device {
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/* NULs if not set - otherwise hex encoding using lower-case e.g. '50014ee0016eb572' */
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char wwn[17];
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/* NULs if not set - otherwise hex encoding using lower-case e.g. '0xe00000d80000' */
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char wwn_vendor_extension[17];
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};
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extern int scsi_std_inquiry(struct udev *udev, struct scsi_id_device *dev_scsi, const char *devname);
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@ -1,4 +1,5 @@
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/*
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
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*
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* scsi_serial.c
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*
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* Code related to requesting and getting an id from a scsi device
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@ -482,7 +483,8 @@ static int check_fill_0x83_id(struct udev *udev,
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unsigned char *page_83,
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const struct scsi_id_search_values
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*id_search, char *serial, char *serial_short, int max_len,
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char *wwn)
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char *wwn,
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char *wwn_vendor_extension)
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{
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int i, j, s, len;
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@ -569,6 +571,9 @@ static int check_fill_0x83_id(struct udev *udev,
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if (id_search->id_type == SCSI_ID_NAA && wwn != NULL) {
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strncpy(wwn, &serial[s], 16);
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if (wwn_vendor_extension != NULL) {
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strncpy(wwn_vendor_extension, &serial[s + 16], 16);
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}
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}
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return 0;
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}
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@ -601,7 +606,8 @@ static int check_fill_0x83_prespc3(struct udev *udev,
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static int do_scsi_page83_inquiry(struct udev *udev,
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struct scsi_id_device *dev_scsi, int fd,
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char *serial, char *serial_short, int len,
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char *unit_serial_number, char *wwn)
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char *unit_serial_number, char *wwn,
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char *wwn_vendor_extension)
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{
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int retval;
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unsigned int id_ind, j;
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dev_scsi, &page_83[j],
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&id_search_list[id_ind],
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serial, serial_short, len,
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wwn);
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wwn,
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wwn_vendor_extension);
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dbg(udev, "%s id desc %d/%d/%d\n", dev_scsi->kernel,
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id_search_list[id_ind].id_type,
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id_search_list[id_ind].naa_type,
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goto completed;
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}
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} else if (page_code == PAGE_83) {
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if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn)) {
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if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension)) {
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retval = 1;
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goto completed;
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} else {
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* conform to pre-SPC3 expectations.
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*/
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if (retval == 2) {
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if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn)) {
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if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension)) {
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retval = 1;
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goto completed;
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} else {
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@ -941,7 +948,7 @@ int scsi_get_serial(struct udev *udev,
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for (ind = 4; ind <= page0[3] + 3; ind++)
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if (page0[ind] == PAGE_83)
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if (!do_scsi_page83_inquiry(udev, dev_scsi, fd,
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dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn)) {
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dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension)) {
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/*
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* Success
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*/
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@ -67,7 +67,7 @@ ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+
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ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_LABEL_ENC}=="?*", SYMLINK+="disk/by-label/$env{ID_FS_LABEL_ENC}"
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# by-id (World Wide Name)
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ENV{DEVTYPE}=="disk", ENV{ID_WWN}=="?*", SYMLINK+="disk/by-id/wwn-$env{ID_WWN}"
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ENV{DEVTYPE}=="partition", ENV{ID_WWN}=="?*", SYMLINK+="disk/by-id/wwn-$env{ID_WWN}-part%n"
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ENV{DEVTYPE}=="disk", ENV{ID_WWN_WITH_EXTENSION}=="?*", SYMLINK+="disk/by-id/wwn-$env{ID_WWN_WITH_EXTENSION}"
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ENV{DEVTYPE}=="partition", ENV{ID_WWN_WITH_EXTENSION}=="?*", SYMLINK+="disk/by-id/wwn-$env{ID_WWN_WITH_EXTENSION}-part%n"
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LABEL="persistent_storage_end"
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