security/keys/keyctl_pkey.c

17 static void keyctl_pkey_params_free(struct kernel_pkey_params *params)
19 	kfree(params->info);
20 	key_put(params->key);
38 static int keyctl_pkey_params_parse(struct kernel_pkey_params *params)
42 	char *c = params->info, *p, *q;
59 			params->encoding = q;
63 			params->hash_algo = q;
76  * on params, even if an error is returned.
80 				  struct kernel_pkey_params *params)
86 	memset(params, 0, sizeof(*params));
87 	params->encoding = "raw";
92 	params->info = p;
94 	ret = keyctl_pkey_params_parse(params);
101 	params->key = key_ref_to_ptr(key_ref);
103 	if (!params->key->type->asym_query)
111  * on params, even if an error is returned.
116 				    struct kernel_pkey_params *params)
122 	memset(params, 0, sizeof(*params));
123 	params->encoding = "raw";
128 	ret = keyctl_pkey_params_get(uparams.key_id, _info, params);
132 	ret = params->key->type->asym_query(params, &info);
161 	params->in_len  = uparams.in_len;
162 	params->out_len = uparams.out_len; /* Note: same as in2_len */
173 	struct kernel_pkey_params params;
177 	ret = keyctl_pkey_params_get(id, _info, &params);
181 	ret = params.key->type->asym_query(&params, &res);
191 	keyctl_pkey_params_free(&params);
218 	struct kernel_pkey_params params;
222 	ret = keyctl_pkey_params_get_2(_params, _info, op, &params);
227 	if (!params.key->type->asym_eds_op)
232 		params.op = kernel_pkey_encrypt;
235 		params.op = kernel_pkey_decrypt;
238 		params.op = kernel_pkey_sign;
244 	in = memdup_user(_in, params.in_len);
251 	out = kmalloc(params.out_len, GFP_KERNEL);
255 	ret = params.key->type->asym_eds_op(&params, in, out);
267 	keyctl_pkey_params_free(&params);
293 	struct kernel_pkey_params params;
298 				       &params);
303 	if (!params.key->type->asym_verify_signature)
306 	in = memdup_user(_in, params.in_len);
312 	in2 = memdup_user(_in2, params.in2_len);
318 	params.op = kernel_pkey_verify;
319 	ret = params.key->type->asym_verify_signature(&params, in, in2);
325 	keyctl_pkey_params_free(&params);