38 static int oid_is_rsadsi(struct asn1_oid *oid)  in oid_is_rsadsi()  argument
40 	return oid->len >= 4 &&  in oid_is_rsadsi()
41 		oid->oid[0] == 1 /* iso */ &&  in oid_is_rsadsi()
42 		oid->oid[1] == 2 /* member-body */ &&  in oid_is_rsadsi()
43 		oid->oid[2] == 840 /* us */ &&  in oid_is_rsadsi()
44 		oid->oid[3] == 113549 /* rsadsi */;  in oid_is_rsadsi()
48 static int pkcs5_is_oid(struct asn1_oid *oid, unsigned long alg)  in pkcs5_is_oid()  argument
50 	return oid->len == 7 &&  in pkcs5_is_oid()
51 		oid_is_rsadsi(oid) &&  in pkcs5_is_oid()
52 		oid->oid[4] == 1 /* pkcs */ &&  in pkcs5_is_oid()
53 		oid->oid[5] == 5 /* pkcs-5 */ &&  in pkcs5_is_oid()
54 		oid->oid[6] == alg;  in pkcs5_is_oid()
58 static int enc_alg_is_oid(struct asn1_oid *oid, unsigned long alg)  in enc_alg_is_oid()  argument
60 	return oid->len == 6 &&  in enc_alg_is_oid()
61 		oid_is_rsadsi(oid) &&  in enc_alg_is_oid()
62 		oid->oid[4] == 3 /* encryptionAlgorithm */ &&  in enc_alg_is_oid()
63 		oid->oid[5] == alg;  in enc_alg_is_oid()
67 static int pkcs12_is_pbe_oid(struct asn1_oid *oid, unsigned long alg)  in pkcs12_is_pbe_oid()  argument
69 	return oid->len == 8 &&  in pkcs12_is_pbe_oid()
70 		oid_is_rsadsi(oid) &&  in pkcs12_is_pbe_oid()
71 		oid->oid[4] == 1 /* pkcs */ &&  in pkcs12_is_pbe_oid()
72 		oid->oid[5] == 12 /* pkcs-12 */ &&  in pkcs12_is_pbe_oid()
73 		oid->oid[6] == 1 /* pkcs-12PbeIds */ &&  in pkcs12_is_pbe_oid()
74 		oid->oid[7] == alg;  in pkcs12_is_pbe_oid()
78 static enum pkcs5_alg pkcs5_get_alg(struct asn1_oid *oid)  in pkcs5_get_alg()  argument
80 	if (pkcs5_is_oid(oid, 3)) /* pbeWithMD5AndDES-CBC (PBES1) */  in pkcs5_get_alg()
82 	if (pkcs12_is_pbe_oid(oid, 3)) /* pbeWithSHAAnd3-KeyTripleDES-CBC */  in pkcs5_get_alg()
84 	if (pkcs5_is_oid(oid, 13)) /* id-PBES2 (PBES2) */  in pkcs5_get_alg()
95 	struct asn1_oid oid;  in pkcs5_get_params_pbes2()  local
132 	if (asn1_get_oid(pos, end - pos, &oid, &pos)) {  in pkcs5_get_params_pbes2()
138 	asn1_oid_to_str(&oid, obuf, sizeof(obuf));  in pkcs5_get_params_pbes2()
141 	if (!pkcs5_is_oid(&oid, 12)) /* id-PBKDF2 */ {  in pkcs5_get_params_pbes2()
236 	if (asn1_get_oid(pos, end - pos, &oid, &pos)) {  in pkcs5_get_params_pbes2()
242 	asn1_oid_to_str(&oid, obuf, sizeof(obuf));  in pkcs5_get_params_pbes2()
245 	if (enc_alg_is_oid(&oid, 7)) {  in pkcs5_get_params_pbes2()
282 	struct asn1_oid oid;  in pkcs5_get_params()  local
291 	if (asn1_get_oid(enc_alg, enc_alg_end - enc_alg, &oid, &pos)) {  in pkcs5_get_params()
297 	asn1_oid_to_str(&oid, obuf, sizeof(obuf));  in pkcs5_get_params()
299 	params->alg = pkcs5_get_alg(&oid);  in pkcs5_get_params()