static GkmObject*
factory_create_item (GkmSession *session, GkmTransaction *transaction,
CK_ATTRIBUTE_PTR attrs, CK_ULONG n_attrs)
{
GkmSecretCollection *collection = NULL;
GkmSecretItem *item;
GkmManager *m_manager;
GkmManager *s_manager;
CK_ATTRIBUTE *attr;
gboolean is_token;
gchar *identifier;
g_return_val_if_fail (GKM_IS_TRANSACTION (transaction), NULL);
g_return_val_if_fail (attrs || !n_attrs, NULL);
/* See if a collection attribute was specified */
attr = gkm_attributes_find (attrs, n_attrs, CKA_G_COLLECTION);
if (attr == NULL) {
gkm_transaction_fail (transaction, CKR_TEMPLATE_INCOMPLETE);
return NULL;
}
m_manager = gkm_module_get_manager (gkm_session_get_module (session));
s_manager = gkm_session_get_manager (session);
gkm_attribute_consume (attr);
if (!gkm_attributes_find_boolean (attrs, n_attrs, CKA_TOKEN, &is_token))
collection = gkm_secret_collection_find (session, attr, m_manager, s_manager, NULL);
else if (is_token)
collection = gkm_secret_collection_find (session, attr, m_manager, NULL);
else
collection = gkm_secret_collection_find (session, attr, s_manager, NULL);
if (!collection) {
gkm_transaction_fail (transaction, CKR_TEMPLATE_INCONSISTENT);
return NULL;
}
/* If an ID was specified, then try and see if that ID already exists */
if (gkm_attributes_find_string (attrs, n_attrs, CKA_ID, &identifier)) {
item = gkm_secret_collection_get_item (collection, identifier);
if (item == NULL) {
gkm_transaction_fail (transaction, CKR_TEMPLATE_INCONSISTENT);
return NULL;
} else {
gkm_session_complete_object_creation (session, transaction, GKM_OBJECT (item),
FALSE, attrs, n_attrs);
return g_object_ref (item);
}
}
/* Create a new collection which will own the item */
item = gkm_secret_collection_create_item (collection, transaction);
gkm_session_complete_object_creation (session, transaction, GKM_OBJECT (item),
TRUE, attrs, n_attrs);
return g_object_ref (item);
}
static void
remove_unavailable_item (gpointer key, gpointer dummy, gpointer user_data)
{
/* Called to remove items from a keyring that no longer exist */
GkmSecretCollection *collection = user_data;
GkmSecretItem *item;
g_assert (GKM_IS_SECRET_COLLECTION (collection));
item = gkm_secret_collection_get_item (collection, key);
if (item != NULL)
gkm_secret_collection_remove_item (collection, item);
}
GkmDataResult
gkm_secret_binary_read (GkmSecretCollection *collection, GkmSecretData *sdata,
gconstpointer data, gsize n_data)
{
gsize offset;
guchar major, minor, crypto, hash;
guint32 flags;
guint32 lock_timeout;
time_t mtime, ctime;
char *display_name;
guint32 tmp;
guint32 num_items;
guint32 crypto_size;
guint32 hash_iterations;
guchar salt[8];
ItemInfo *items;
GkmSecret* master;
GkmSecretObject *obj;
EggBuffer to_decrypt = EGG_BUFFER_EMPTY;
GkmDataResult res = GKM_DATA_FAILURE;
GHashTable *checks = NULL;
GkmSecretItem *item;
EggBuffer buffer;
GList *l, *iteml;
int i;
display_name = NULL;
items = 0;
obj = GKM_SECRET_OBJECT (collection);
/* The buffer we read from */
egg_buffer_init_static (&buffer, data, n_data);
if (buffer.len < KEYRING_FILE_HEADER_LEN ||
memcmp (buffer.buf, KEYRING_FILE_HEADER, KEYRING_FILE_HEADER_LEN) != 0) {
egg_buffer_uninit (&buffer);
return GKM_DATA_UNRECOGNIZED;
}
offset = KEYRING_FILE_HEADER_LEN;
major = buffer.buf[offset++];
minor = buffer.buf[offset++];
crypto = buffer.buf[offset++];
hash = buffer.buf[offset++];
if (major != 0 || minor != 0 || crypto != 0 || hash != 0) {
egg_buffer_uninit (&buffer);
return GKM_DATA_UNRECOGNIZED;
}
if (!buffer_get_utf8_string (&buffer, offset, &offset, &display_name) ||
!buffer_get_time (&buffer, offset, &offset, &ctime) ||
!buffer_get_time (&buffer, offset, &offset, &mtime) ||
!egg_buffer_get_uint32 (&buffer, offset, &offset, &flags) ||
!egg_buffer_get_uint32 (&buffer, offset, &offset, &lock_timeout) ||
!egg_buffer_get_uint32 (&buffer, offset, &offset, &hash_iterations) ||
!buffer_get_bytes (&buffer, offset, &offset, salt, 8))
goto bail;
for (i = 0; i < 4; i++) {
if (!egg_buffer_get_uint32 (&buffer, offset, &offset, &tmp))
goto bail;
}
if (!egg_buffer_get_uint32 (&buffer, offset, &offset, &num_items))
goto bail;
items = g_new0 (ItemInfo, num_items + 1);
/* Hashed data, without secrets */
if (!read_hashed_item_info (&buffer, &offset, items, num_items))
goto bail;
if (!egg_buffer_get_uint32 (&buffer, offset, &offset, &crypto_size))
goto bail;
/* Make the crypted part is the right size */
if (crypto_size % 16 != 0)
goto bail;
/* Ensure the file is large enough to hold all the data (in case it got truncated) */
if (buffer.len < offset + crypto_size)
goto bail;
/* Copy the data into to_decrypt into non-pageable memory */
egg_buffer_set_allocator (&to_decrypt, egg_secure_realloc);
egg_buffer_reserve (&to_decrypt, crypto_size);
memcpy (to_decrypt.buf, buffer.buf + offset, crypto_size);
to_decrypt.len = crypto_size;
if (sdata != NULL) {
master = gkm_secret_data_get_master (sdata);
if (!decrypt_buffer (&to_decrypt, master, salt, hash_iterations))
goto bail;
if (!verify_decrypted_buffer (&to_decrypt)) {
res = GKM_DATA_LOCKED;
goto bail;
} else {
offset = 16; /* Skip hash */
if (!read_full_item_info (&to_decrypt, &offset, items, num_items))
goto bail;
}
}
/* Correctly read all data, possibly including the decrypted data.
* Now update the keyring and items: */
gkm_secret_object_set_label (obj, display_name);
gkm_secret_object_set_modified (obj, mtime);
gkm_secret_object_set_created (obj, ctime);
if (flags & LOCK_ON_IDLE_FLAG)
gkm_secret_collection_set_lock_idle (collection, lock_timeout);
else if (flags & LOCK_AFTER_FLAG)
gkm_secret_collection_set_lock_after (collection, lock_timeout);
/* Build a Hash table where we can track ids we haven't yet seen */
checks = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
iteml = gkm_secret_collection_get_items (collection);
for (l = iteml; l; l = g_list_next (l))
g_hash_table_insert (checks, g_strdup (gkm_secret_object_get_identifier (l->data)), "unused");
g_list_free (iteml);
for (i = 0; i < num_items; i++) {
/* We've seen this id */
g_hash_table_remove (checks, items[i].identifier);
item = gkm_secret_collection_get_item (collection, items[i].identifier);
if (item == NULL)
item = gkm_secret_collection_new_item (collection, items[i].identifier);
setup_item_from_info (item, sdata, &items[i]);
}
g_hash_table_foreach (checks, remove_unavailable_item, collection);
res = GKM_DATA_SUCCESS;
bail:
egg_buffer_uninit (&to_decrypt);
if (checks)
g_hash_table_destroy (checks);
g_free (display_name);
for (i = 0; items && i < num_items; i++)
free_item_info (&items[i]);
g_free (items);
return res;
}
