construct_key

Name:Call out to userspace for key construction.* Program failure is ignored in favour of key status.

Proto:static int construct_key(struct key *key, const void *callout_info, size_t callout_len, void *aux, struct key *dest_keyring)

Type:int

Parameter:

Type	Parameter	Name
struct key *	key
const void *	callout_info
size_t	callout_len
void *	aux
struct key *	dest_keyring

231

kenter("%d,%p,%zu,%p", key serial number , callout_info, callout_len, aux)

234

authkey = Create an authorisation token for /sbin/request-key or whoever to gain* access to the caller's security data.

236

If IS_ERR(authkey) Then Return PTR_ERR(authkey)

240

actor = Request userspace finish the construction of a key* - execute "/sbin/request-key "

241

If request_key Then actor = request_key

244

ret = actor(authkey, aux)

248

WARN_ON(ret < 0 && !st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from)

251

key_put - Discard a reference to a key.*@key: The key to discard a reference from.* Discard a reference to a key, and when all the references are gone, we* schedule the cleanup task to come and pull it out of the tree in process

252

kleave(" = %d", ret)

253

Return ret

**Caller**
Name	Describe
construct_key_and_link	Commence key construction.

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