/*
- * Soft: Description here...
+ * Soft: multipath device mapper target autoconfig
*
* Version: $Id: main.h,v 0.0.1 2003/09/18 15:13:38 cvaroqui Exp $
*
*/
/* hardware vendor specifics : add support for new models below */
+
+/* this one get EVPD page 0x83 off 8 */
+/* tested ok with StorageWorks */
static int
-get_storageworks_wwid(int fd, char *str)
+get_evpd_wwid(int fd, char *str)
{
char buff[64];
static int
get_unique_id(int fd, struct path * mypath)
{
- if (strncmp(mypath->product_id, "HSV110 (C)COMPAQ", 16) == 0 ||
- strncmp(mypath->product_id, "HSG80 ", 16) == 0) {
- get_storageworks_wwid(fd, mypath->wwid);
- return 0;
+ int i;
+ static struct {
+ char * vendor;
+ char * product;
+ int (*getuid) (int fd, char * wwid);
+ } wlist[] = {
+ {"COMPAQ ", "HSV110 (C)COMPAQ", &get_evpd_wwid},
+ {"COMPAQ ", "MSA1000 ", &get_evpd_wwid},
+ {"COMPAQ ", "MSA1000 VOLUME ", &get_evpd_wwid},
+ {"DEC ", "HSG80 ", &get_evpd_wwid},
+ {"HP ", "HSV100 ", &get_evpd_wwid},
+ {"HP ", "A6189A ", &get_evpd_wwid},
+ {"HP ", "OPEN- ", &get_evpd_wwid},
+ {"DDN ", "SAN DataDirector", &get_evpd_wwid},
+ {"FSC ", "CentricStor ", &get_evpd_wwid},
+ {"HITACHI ", "DF400 ", &get_evpd_wwid},
+ {"HITACHI ", "DF500 ", &get_evpd_wwid},
+ {"HITACHI ", "DF600 ", &get_evpd_wwid},
+ {"IBM ", "ProFibre 4000R ", &get_evpd_wwid},
+ {"SGI ", "TP9100 ", &get_evpd_wwid},
+ {"SGI ", "TP9300 ", &get_evpd_wwid},
+ {"SGI ", "TP9400 ", &get_evpd_wwid},
+ {"SGI ", "TP9500 ", &get_evpd_wwid},
+ {NULL, NULL, NULL},
+ };
+
+ for (i = 0; wlist[i].vendor; i++) {
+ if (strncmp(mypath->vendor_id, wlist[i].vendor, 8) == 0 &&
+ strncmp(mypath->product_id, wlist[i].product, 16) == 0) {
+ wlist[i].getuid(fd, mypath->wwid);
+ return 0;
+ }
}
-
return 1;
}
strcpy(str2, ++p);
}
+static int
+blacklist (char * dev) {
+ int i;
+ static struct {
+ char * headstr;
+ int lengh;
+ } blist[] = {
+ {"cciss", 5},
+ {"hd", 2},
+ {"md", 2},
+ {"dm", 2},
+ {"sr", 2},
+ {"scd", 3},
+ {"ram", 3},
+ {"raw", 3},
+ {NULL, 0},
+ };
+
+ for (i = 0; blist[i].lengh; i++) {
+ if (strncmp(dev, blist[i].headstr, blist[i].lengh) == 0)
+ return 1;
+ }
+ return 0;
+}
+
static int
get_all_paths_sysfs(struct env * conf, struct path * all_paths)
{
struct sysfs_directory * sdir;
struct sysfs_directory * devp;
struct sysfs_link * linkp;
+ char refwwid[WWID_SIZE];
+ char empty_buff[WWID_SIZE];
char buff[FILE_NAME_SIZE];
+ char path[FILE_NAME_SIZE];
+ struct path curpath;
- char block_path[FILE_NAME_SIZE];
+ /* if called from udev, only consider the paths that relate to */
+ /* to the device pointed by conf.hotplugdev */
+ memset(empty_buff, 0, WWID_SIZE);
+ memset(refwwid, 0, WWID_SIZE);
+ if (strncmp("/devices", conf->hotplugdev, 8) == 0) {
+ sprintf(buff, "%s%s/block",
+ conf->sysfs_path, conf->hotplugdev);
+ memset(conf->hotplugdev, 0, FILE_NAME_SIZE);
+ readlink(buff, conf->hotplugdev, FILE_NAME_SIZE);
+ basename(conf->hotplugdev, buff);
+ sprintf(curpath.sg_dev, "/dev/%s", buff);
+
+ if ((sg_fd = open(curpath.sg_dev, O_RDONLY)) < 0)
+ exit(1);
+
+ get_lun_strings(sg_fd, &curpath);
+ get_unique_id(sg_fd, &curpath);
+ strcpy(refwwid, curpath.wwid);
+ memset(&curpath, 0, sizeof(path));
+ }
- sprintf(block_path, "%s/block", conf->sysfs_path);
- sdir = sysfs_open_directory(block_path);
+ sprintf(path, "%s/block", conf->sysfs_path);
+ sdir = sysfs_open_directory(path);
sysfs_read_directory(sdir);
+
dlist_for_each_data(sdir->subdirs, devp, struct sysfs_directory) {
+ if (blacklist(devp->name))
+ continue;
+
sysfs_read_directory(devp);
+
if(devp->links == NULL)
continue;
+
dlist_for_each_data(devp->links, linkp, struct sysfs_link) {
if (!strncmp(linkp->name, "device", 6))
break;
}
+
if (linkp == NULL) {
continue;
}
basename(devp->path, buff);
- sprintf(all_paths[k].sg_dev, "/dev/%s", buff);
- strcpy(all_paths[k].dev, all_paths[k].sg_dev);
- if ((sg_fd = open(all_paths[k].sg_dev, O_RDONLY)) < 0) {
+ sprintf(curpath.sg_dev, "/dev/%s", buff);
+
+ if ((sg_fd = open(curpath.sg_dev, O_RDONLY)) < 0) {
+ if (conf->verbose)
+ fprintf(stderr, "can't open %s\n",
+ curpath.sg_dev);
continue;
}
- get_lun_strings(sg_fd, &all_paths[k]);
- get_unique_id(sg_fd, &all_paths[k]);
+
+ get_lun_strings(sg_fd, &curpath);
+ get_unique_id(sg_fd, &curpath);
+
+ if (memcmp(empty_buff, refwwid, WWID_SIZE) != 0 &&
+ strncmp(curpath.wwid, refwwid, WWID_SIZE) != 0) {
+ memset(&curpath, 0, sizeof(path));
+ continue;
+ }
+
+ strcpy(all_paths[k].sg_dev, curpath.sg_dev);
+ strcpy(all_paths[k].dev, curpath.sg_dev);
+ strcpy(all_paths[k].wwid, curpath.wwid);
+ strcpy(all_paths[k].vendor_id, curpath.vendor_id);
+ strcpy(all_paths[k].product_id, curpath.product_id);
+ memset(&curpath, 0, sizeof(path));
all_paths[k].state = do_tur(sg_fd);
close(sg_fd);
basename(linkp->target, buff);
k++;
}
sysfs_close_directory(sdir);
-
return 0;
}
sprintf(buff, "%d", k);
strncat(file_name, buff, FILE_NAME_SIZE);
strcpy(all_paths[k].sg_dev, file_name);
- if ((sg_fd = open(file_name, O_RDONLY)) < 0)
+ if ((sg_fd = open(file_name, O_RDONLY)) < 0) {
+ if (conf->verbose)
+ fprintf(stderr, "can't open %s. mknod ?",
+ file_name);
continue;
+ }
get_lun_strings(sg_fd, &all_paths[k]);
get_unique_id(sg_fd, &all_paths[k]);
all_paths[k].state = do_tur(sg_fd);
} else
strcat(fname, "xxxx");
- if ((fd = open(fname, O_RDONLY)) < 0)
+ if ((fd = open(fname, O_RDONLY)) < 0) {
+ if (conf->verbose)
+ fprintf(stderr, "can't open %s. mknod ?",
+ fname);
continue;
+ }
res = ioctl(fd, SCSI_IOCTL_GET_IDLUN, &my_scsi_id);
if (res < 0) {
}
-/* future use ?
-static int
-del_map(char * str) {
- struct dm_task *dmt;
-
- if (!(dmt = dm_task_create(DM_DEVICE_REMOVE)))
- return 0;
- if (!dm_task_set_name(dmt, str))
- goto delout;
- if (!dm_task_run(dmt))
- goto delout;
-
- printf("Deleted device map : %s\n", str);
-
- delout:
- dm_task_destroy(dmt);
- return 1;
-}
-*/
-
static int
add_map(struct env * conf, struct path * all_paths,
struct multipath * mp, int index, int op)
int i, np;
long size = -1;
+ /* defaults for multipath target */
+ int dm_pg_prio = 1;
+ char * dm_ps_name = "round-robin";
+ int dm_ps_nr_args = 0;
+
if (!(dmt = dm_task_create(op)))
return 0;
}
if (np == 0)
goto addout;
- params_p += sprintf(params_p, "%i 32", np);
+
+ if (np < 1)
+ goto addout;
+
+ params_p += sprintf(params_p, "%i %i %s %i %i",
+ conf->dm_path_test_int, dm_pg_prio,
+ dm_ps_name, np, dm_ps_nr_args);
for (i=0; i<=mp[index].npaths; i++) {
if (( 0 == all_paths[PINDEX(index,i)].state) ||
continue;
if (size < 0)
size = get_disk_size(conf, all_paths[PINDEX(index,0)].dev);
- params_p += sprintf(params_p, " %s %i",
- all_paths[PINDEX(index,i)].dev, 0);
+ params_p += sprintf(params_p, " %s",
+ all_paths[PINDEX(index,i)].dev);
}
if (size < 0)
return 1;
}
-/*
-static int
-get_table(const char * str)
-{
- int r = 0;
- struct dm_task *dmt;
- void *next = NULL;
- uint64_t start, length;
- char *target_type = NULL;
- char *params;
-
- if (!(dmt = dm_task_create(DM_DEVICE_TABLE)))
- return 0;
-
- if (!dm_task_set_name(dmt, str))
- goto out;
-
- if (!dm_task_run(dmt))
- goto out;
-
- do {
- next = dm_get_next_target(dmt, next, &start, &length,
- &target_type, ¶ms);
- if (target_type) {
- printf("%" PRIu64 " %" PRIu64 " %s %s\n",
- start, length, target_type, params);
- }
- } while (next);
-
- r = 1;
-
- out:
- dm_task_destroy(dmt);
- return r;
-
-}
-*/
-
static int
map_present(char * str)
{
usage(char * progname)
{
fprintf(stderr, VERSION_STRING);
- fprintf(stderr, "Usage: %s [-v|-q] [-d] [-m max_devs]\n", progname);
- fprintf(stderr, "\t-v\t\tverbose, print all paths and multipaths\n");
- fprintf(stderr, "\t-q\t\tquiet, no output at all\n");
+ fprintf(stderr, "Usage: %s [-v|-q] [-d] [-i int] [-m max_devs]\n", progname);
fprintf(stderr, "\t-d\t\tdry run, do not create or update devmaps\n");
+ fprintf(stderr, "\t-i\t\tmultipath target param : polling interval\n");
fprintf(stderr, "\t-m max_devs\tscan {max_devs} devices at most\n");
+ fprintf(stderr, "\t-q\t\tquiet, no output at all\n");
+ fprintf(stderr, "\t-v\t\tverbose, print all paths and multipaths\n");
exit(1);
}
conf.verbose = 0; /* 1 == Print all_paths and mp */
conf.quiet = 0; /* 1 == Do not even print devmaps */
conf.with_sysfs = 0; /* Default to compat / suboptimal behaviour */
+ conf.dm_path_test_int = 10;
/* kindly provided by libsysfs */
if (0 == sysfs_get_mnt_path(conf.sysfs_path, FILE_NAME_SIZE))
conf.quiet = 1;
} else if (0 == strcmp("-d", argv[i]))
conf.dry_run = 1;
+ else if (0 == strcmp("-i", argv[i]))
+ conf.dm_path_test_int = atoi(argv[++i]);
+ else if (0 == strcmp("scsi", argv[i]))
+ strcpy(conf.hotplugdev, argv[++i]);
else if (*argv[i] == '-') {
fprintf(stderr, "Unknown switch: %s\n", argv[i]);
usage(argv[0]);
fprintf(stdout, "\n");
print_all_mp(all_paths, mp, nmp);
fprintf(stdout, "\n");
- //printf("\n");
}
if (conf.dry_run)
add_map(&conf, all_paths, mp, k, DM_DEVICE_CREATE);
}
}
+
+ /* free allocs */
+ free(mp);
+ free(all_paths);
+ free(all_scsi_ids);
+
exit(0);
}
~ianmdlvl / elogind.git / blobdiff