scsi: core: Allow non-root users to perform ZBC commands

Allow users with read permissions to issue REPORT ZONE commands and users
with write permissions to manage zones on block devices supporting the ZBC
specification.

Link: https://lore.kernel.org/r/20200226170518.92963-2-ryanattard@ryanattard.info
Signed-off-by: Ryan Attard <ryanattard@ryanattard.info>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index b4e73d5dd5c20c3f4ec1819943113d835b471132..ef722f04f88a93b38d2c3df4f503dea5da05ffbd 100644 (file)
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -193,6 +193,10 @@ static void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter)
        __set_bit(GPCMD_LOAD_UNLOAD, filter->write_ok);
        __set_bit(GPCMD_SET_STREAMING, filter->write_ok);
        __set_bit(GPCMD_SET_READ_AHEAD, filter->write_ok);
+
+       /* ZBC Commands */
+       __set_bit(ZBC_OUT, filter->write_ok);
+       __set_bit(ZBC_IN, filter->read_ok);
 }
 
 int blk_verify_command(unsigned char *cmd, fmode_t mode)