Implemented a callback based credential set, currently for shared keys only

This commit is contained in:
Martin Willi
2010-08-04 09:26:21 +02:00
parent 0749e91bec
commit 62be923683
6 changed files with 267 additions and 97 deletions
@@ -331,13 +331,26 @@ static bool find_key(private_pkcs11_private_key_t *this, chunk_t keyid)
}
/**
* Try a login to the session
* Find a PIN and try to log in
*/
static bool login(private_pkcs11_private_key_t *this, chunk_t pin, int slot)
static bool login(private_pkcs11_private_key_t *this, chunk_t keyid, int slot)
{
identification_t *id;
shared_key_t *shared;
chunk_t pin;
CK_RV rv;
id = identification_create_from_encoding(ID_KEY_ID, keyid);
shared = lib->credmgr->get_shared(lib->credmgr, SHARED_PIN, id, NULL);
id->destroy(id);
if (!shared)
{
DBG1(DBG_CFG, "no PIN found for PKCS#11 key %#B", keyid);
return FALSE;
}
pin = shared->get_key(shared);
rv = this->lib->f->C_Login(this->session, CKU_USER, pin.ptr, pin.len);
shared->destroy(shared);
if (rv != CKR_OK)
{
DBG1(DBG_CFG, "login to '%s':%d failed: %N",
@@ -353,14 +366,11 @@ static bool login(private_pkcs11_private_key_t *this, chunk_t pin, int slot)
pkcs11_private_key_t *pkcs11_private_key_connect(key_type_t type, va_list args)
{
private_pkcs11_private_key_t *this;
chunk_t (*cb)(void *data, int try) = NULL;
void *cb_data = NULL;
char *module = NULL;
chunk_t keyid, pin;
int slot = -1, try = 0;
chunk_t keyid = chunk_empty;
int slot = -1;
CK_RV rv;
keyid = pin = chunk_empty;
while (TRUE)
{
switch (va_arg(args, builder_part_t))
@@ -368,13 +378,6 @@ pkcs11_private_key_t *pkcs11_private_key_connect(key_type_t type, va_list args)
case BUILD_PKCS11_KEYID:
keyid = va_arg(args, chunk_t);
continue;
case BUILD_PASSPHRASE:
pin = va_arg(args, chunk_t);
continue;
case BUILD_PASSPHRASE_CALLBACK:
cb = va_arg(args, void*);
cb_data = va_arg(args, void*);
continue;
case BUILD_PKCS11_SLOT:
slot = va_arg(args, int);
continue;
@@ -388,7 +391,7 @@ pkcs11_private_key_t *pkcs11_private_key_connect(key_type_t type, va_list args)
}
break;
}
if (!keyid.len || (!pin.len && !cb))
if (!keyid.len)
{
return NULL;
}
@@ -444,29 +447,10 @@ pkcs11_private_key_t *pkcs11_private_key_connect(key_type_t type, va_list args)
this->mutex = mutex_create(MUTEX_TYPE_DEFAULT);
if (pin.ptr)
if (!login(this, keyid, slot))
{
if (!login(this, pin, slot))
{
destroy(this);
return NULL;
}
}
else
{
while (TRUE)
{
pin = cb(cb_data, ++try);
if (!pin.len)
{
destroy(this);
return NULL;
}
if (login(this, pin, slot))
{
break;
}
}
destroy(this);
return NULL;
}
if (!find_key(this, keyid))