1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Public-key operation keyctls
14 #include <keys/user-type.h>
19 	kfree(params->info);  in keyctl_pkey_params_free()
20 	key_put(params->key);  in keyctl_pkey_params_free()
26 	Opt_hash,		/* "hash=<digest-name>" eg. "hash=sha1" */
42 	char *c = params->info, *p, *q;  in keyctl_pkey_params_parse()
50 			return -EINVAL;  in keyctl_pkey_params_parse()
52 			return -EINVAL;  in keyctl_pkey_params_parse()
55 			return -EINVAL;  in keyctl_pkey_params_parse()
59 			params->encoding = q;  in keyctl_pkey_params_parse()
63 			params->hash_algo = q;  in keyctl_pkey_params_parse()
67 			return -EINVAL;  in keyctl_pkey_params_parse()
87 	params->encoding = "raw";  in keyctl_pkey_params_get()
92 	params->info = p;  in keyctl_pkey_params_get()
101 	params->key = key_ref_to_ptr(key_ref);  in keyctl_pkey_params_get()
103 	if (!params->key->type->asym_query)  in keyctl_pkey_params_get()
104 		return -EOPNOTSUPP;  in keyctl_pkey_params_get()
123 	params->encoding = "raw";  in keyctl_pkey_params_get_2()
126 		return -EFAULT;  in keyctl_pkey_params_get_2()
132 	ret = params->key->type->asym_query(params, &info);  in keyctl_pkey_params_get_2()
140 			return -EINVAL;  in keyctl_pkey_params_get_2()
145 			return -EINVAL;  in keyctl_pkey_params_get_2()
150 			return -EINVAL;  in keyctl_pkey_params_get_2()
155 			return -EINVAL;  in keyctl_pkey_params_get_2()
161 	params->in_len  = uparams.in_len;  in keyctl_pkey_params_get_2()
162 	params->out_len = uparams.out_len; /* Note: same as in2_len */  in keyctl_pkey_params_get_2()
181 	ret = params.key->type->asym_query(&params, &res);  in keyctl_pkey_query()
185 	ret = -EFAULT;  in keyctl_pkey_query()
187 	    clear_user(_res->__spare, sizeof(_res->__spare)) == 0)  in keyctl_pkey_query()
226 	ret = -EOPNOTSUPP;  in keyctl_pkey_e_d_s()
227 	if (!params.key->type->asym_eds_op)  in keyctl_pkey_e_d_s()
250 	ret = -ENOMEM;  in keyctl_pkey_e_d_s()
255 	ret = params.key->type->asym_eds_op(&params, in, out);  in keyctl_pkey_e_d_s()
260 		ret = -EFAULT;  in keyctl_pkey_e_d_s()
294 	void *in, *in2;  in keyctl_pkey_verify()  local
302 	ret = -EOPNOTSUPP;  in keyctl_pkey_verify()
303 	if (!params.key->type->asym_verify_signature)  in keyctl_pkey_verify()
312 	in2 = memdup_user(_in2, params.in2_len);  in keyctl_pkey_verify()
313 	if (IS_ERR(in2)) {  in keyctl_pkey_verify()
314 		ret = PTR_ERR(in2);  in keyctl_pkey_verify()
319 	ret = params.key->type->asym_verify_signature(&params, in, in2);  in keyctl_pkey_verify()
321 	kfree(in2);  in keyctl_pkey_verify()