Richard Weinberger [off-list ref] wrote:
On Wed, Mar 17, 2021 at 3:08 PM Ahmad Fatoum [off-list ref] wrote:
quoted
keyctl add trusted $KEYNAME "load $(cat ~/kmk.blob)" @s
Is there a reason why we can't pass the desired backend name in the
trusted key parameters?
e.g.
keyctl add trusted $KEYNAME "backendtype caam load $(cat ~/kmk.blob)" @s
I wonder... Does it make sense to add a new variant of the add_key() and
keyctl_instantiate() syscalls that takes an additional parameter string,
separate from the payload blob?
key_serial_t add_key2(const char *type, const char *description,
const char *params,
const void *payload, size_t plen,
key_serial_t keyring);
which could then by used, say:
keyctl add --payload=~/kmk.blob trusted $KEYNAME "backendtype caam load" @s
This would then appear in
struct key_preparsed_payload {
const char *orig_description;
char *description;
char *params; <---
union key_payload payload;
const void *data;
size_t datalen;
size_t quotalen;
time64_t expiry;
};
params would then be NULL for add_key().
If add_key2() is not available, the --payload param gets concatenated to the
parameters string.
Might be too complicated, I guess. Though it might make sense just to do the
concatenation inside the keyctl program.
David