On Fri, 2018-11-16 at 08:00 +0100, Paolo Bonzini wrote:
> On 16/11/18 06:46, Bart Van Assche wrote:
> > I do not know any application for which it would be useful to allow some but
> > not all of these commands. With the proposed interface however users will
> > have to examine all SCSI opcodes and
On 16/11/18 06:46, Bart Van Assche wrote:
> I do not know any application for which it would be useful to allow some but
> not all of these commands. With the proposed interface however users will
> have to examine all SCSI opcodes and for each opcode they will have to decide
> whether or not it sh
On Sat, 2018-11-10 at 17:35 +0100, Paolo Bonzini wrote:
> +sgio_read_filter (RW)
> +-
> +When read, this file will display a list of SCSI commands (i.e. values of
> +the first byte of a CDB) that are always available for unprivileged users
> +via /dev/bsg, /dev/sgNN, or ioctls s
This adds two new sysfs attributes to the queue kobject. The attributes
allow reading and writing the whitelist of unprivileged commands.
This is again a bit different from what was removed in commit 018e044
(block: get rid of queue-private command filter, 2009-06-26), but the idea
is the same.
Il 12/09/2012 14:41, Alan Cox ha scritto:
>> > + if (!q->cmd_filter) {
>> > + q->cmd_filter = kmalloc(sizeof(struct blk_cmd_filter),
>> > + GFP_KERNEL);
>> > + blk_set_cmd_filter_defaults(q->cmd_filter);
>> > + }
>> > +
> This also needs CAP_SYS_
> +ssize_t blk_filter_store(struct request_queue *q,
> + const char *page, size_t count, int rw)
> +{
> + unsigned long okbits[BLK_SCSI_CMD_PER_LONG], *target_okbits;
> + bool set;
> + const char *p = page;
> + char *endp;
> + int start = -1, cmd;
> +
> +
O
> + if (!q->cmd_filter) {
> + q->cmd_filter = kmalloc(sizeof(struct blk_cmd_filter),
> + GFP_KERNEL);
> + blk_set_cmd_filter_defaults(q->cmd_filter);
Out of memory - memset - oops
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This adds two new sysfs attributes to the queue kobject. The attributes
allow reading and writing the whitelist of unprivileged commands.
This is again a bit different from what was removed in commit 018e044
(block: get rid of queue-private command filter, 2009-06-26), but the idea
is the same.
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