extras/multipath/unused.c

   1 static int
   2 do_tur(int fd)
   3 {
   4         unsigned char turCmdBlk[TUR_CMD_LEN] = { 0x00, 0, 0, 0, 0, 0 };
   5         struct sg_io_hdr io_hdr;
   6         unsigned char sense_buffer[32];
   7
   8         memset(&io_hdr, 0, sizeof (struct sg_io_hdr));
   9         io_hdr.interface_id = 'S';
  10         io_hdr.cmd_len = sizeof (turCmdBlk);
  11         io_hdr.mx_sb_len = sizeof (sense_buffer);
  12         io_hdr.dxfer_direction = SG_DXFER_NONE;
  13         io_hdr.cmdp = turCmdBlk;
  14         io_hdr.sbp = sense_buffer;
  15         io_hdr.timeout = 20000;
  16         io_hdr.pack_id = 0;
  17         if (ioctl(fd, SG_IO, &io_hdr) < 0) {
  18                 close(fd);
  19                 return 0;
  20         }
  21         if (io_hdr.info & SG_INFO_OK_MASK) {
  22                 return 0;
  23         }
  24         return 1;
  25 }
  26
  27 static int
  28 del_map(char * str) {
  29         struct dm_task *dmt;
  30
  31         if (!(dmt = dm_task_create(DM_DEVICE_REMOVE)))
  32                 return 0;
  33         if (!dm_task_set_name(dmt, str))
  34                 goto delout;
  35         if (!dm_task_run(dmt))
  36                 goto delout;
  37
  38         printf("Deleted device map : %s\n", str);
  39
  40         delout:
  41         dm_task_destroy(dmt);
  42         return 1;
  43 }
  44
  45 get_table(const char * str)
  46 {
  47         int r = 0;
  48         struct dm_task *dmt;
  49         void *next = NULL;
  50         uint64_t start, length;
  51         char *target_type = NULL;
  52         char *params;
  53
  54         if (!(dmt = dm_task_create(DM_DEVICE_TABLE)))
  55                 return 0;
  56
  57         if (!dm_task_set_name(dmt, str))
  58                 goto out;
  59
  60         if (!dm_task_run(dmt))
  61                 goto out;
  62
  63         do {
  64                 next = dm_get_next_target(dmt, next, &start, &length,
  65                                           &target_type, &params);
  66                 if (target_type) {
  67                         printf("%" PRIu64 " %" PRIu64 " %s %s\n",
  68                                start, length, target_type, params);
  69                 }
  70         } while (next);
  71
  72         r = 1;
  73
  74       out:
  75         dm_task_destroy(dmt);
  76         return r;
  77
  78 }