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libf2fs: show disk information

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This adds to show disk information.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2016-08-04 19:30:02 -07:00
parent d2446560e2
commit c6834e9cc4
1 changed files with 26 additions and 1 deletions
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27
lib/libf2fs.c
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@ -19,10 +19,14 @@
#include <sys/stat.h>
#include <sys/mount.h>
#include <sys/ioctl.h>
#include <scsi/sg.h>
#include <linux/hdreg.h>
#include <f2fs_fs.h>
/* SCSI command for standard inquiry*/
#define MODELINQUIRY 0x12,0x00,0x00,0x00,0x4A,0x00
/*
* UTF conversion codes are Copied from exfat tools.
*/
@ -582,6 +586,9 @@ int f2fs_get_device_info(struct f2fs_configuration *c)
#endif
struct stat stat_buf;
struct hd_geometry geom;
sg_io_hdr_t io_hdr;
unsigned char reply_buffer[96];
unsigned char model_inq[6] = {MODELINQUIRY};
u_int64_t wanted_total_sectors = c->total_sectors;
fd = open(c->device_name, O_RDWR);
@ -630,6 +637,25 @@ int f2fs_get_device_info(struct f2fs_configuration *c)
c->start_sector = 0;
else
c->start_sector = geom.start;
/* Send INQUIRY command */
memset(&io_hdr, 0, sizeof(sg_io_hdr_t));
io_hdr.interface_id = 'S';
io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
io_hdr.dxfer_len = sizeof(reply_buffer);
io_hdr.dxferp = reply_buffer;
io_hdr.cmd_len = sizeof(model_inq);
io_hdr.cmdp = model_inq;
io_hdr.timeout = 1000;
if (!ioctl(fd,SG_IO,&io_hdr)) {
int i = 16;
MSG(0, "Info: Disk Model: ");
while (reply_buffer[i] != '`')
printf("%c", reply_buffer[i++]);
printf("\n");
}
} else {
MSG(0, "\tError: Volume type is not supported!!!\n");
return -1;
@ -638,7 +664,6 @@ int f2fs_get_device_info(struct f2fs_configuration *c)
MSG(0, "Info: total device sectors = %"PRIu64" (in %u bytes)\n",
c->total_sectors, c->sector_size);
c->total_sectors = wanted_total_sectors;
}
if (c->total_sectors * c->sector_size >
(u_int64_t)F2FS_MAX_SEGMENT * 2 * 1024 * 1024) {