1 /* 2 * WARNING: do not edit! 3 * Generated by Makefile from include/openssl/srp.h.in 4 * 5 * Copyright 2004-2021 The OpenSSL Project Authors. All Rights Reserved. 6 * Copyright (c) 2004, EdelKey Project. All Rights Reserved. 7 * 8 * Licensed under the Apache License 2.0 (the "License"). You may not use 9 * this file except in compliance with the License. You can obtain a copy 10 * in the file LICENSE in the source distribution or at 11 * https://www.openssl.org/source/license.html 12 * 13 * Originally written by Christophe Renou and Peter Sylvester, 14 * for the EdelKey project. 15 */ 16 17 18 19 #ifndef OPENSSL_SRP_H 20 # define OPENSSL_SRP_H 21 # pragma once 22 23 # include <openssl/macros.h> 24 # ifndef OPENSSL_NO_DEPRECATED_3_0 25 # define HEADER_SRP_H 26 # endif 27 28 #include <openssl/opensslconf.h> 29 30 #ifndef OPENSSL_NO_SRP 31 # include <stdio.h> 32 # include <string.h> 33 # include <openssl/safestack.h> 34 # include <openssl/bn.h> 35 # include <openssl/crypto.h> 36 37 # ifdef __cplusplus 38 extern "C" { 39 # endif 40 41 # ifndef OPENSSL_NO_DEPRECATED_3_0 42 43 typedef struct SRP_gN_cache_st { 44 char *b64_bn; 45 BIGNUM *bn; 46 } SRP_gN_cache; 47 SKM_DEFINE_STACK_OF_INTERNAL(SRP_gN_cache, SRP_gN_cache, SRP_gN_cache) 48 #define sk_SRP_gN_cache_num(sk) OPENSSL_sk_num(ossl_check_const_SRP_gN_cache_sk_type(sk)) 49 #define sk_SRP_gN_cache_value(sk, idx) ((SRP_gN_cache *)OPENSSL_sk_value(ossl_check_const_SRP_gN_cache_sk_type(sk), (idx))) 50 #define sk_SRP_gN_cache_new(cmp) ((STACK_OF(SRP_gN_cache) *)OPENSSL_sk_new(ossl_check_SRP_gN_cache_compfunc_type(cmp))) 51 #define sk_SRP_gN_cache_new_null() ((STACK_OF(SRP_gN_cache) *)OPENSSL_sk_new_null()) 52 #define sk_SRP_gN_cache_new_reserve(cmp, n) ((STACK_OF(SRP_gN_cache) *)OPENSSL_sk_new_reserve(ossl_check_SRP_gN_cache_compfunc_type(cmp), (n))) 53 #define sk_SRP_gN_cache_reserve(sk, n) OPENSSL_sk_reserve(ossl_check_SRP_gN_cache_sk_type(sk), (n)) 54 #define sk_SRP_gN_cache_free(sk) OPENSSL_sk_free(ossl_check_SRP_gN_cache_sk_type(sk)) 55 #define sk_SRP_gN_cache_zero(sk) OPENSSL_sk_zero(ossl_check_SRP_gN_cache_sk_type(sk)) 56 #define sk_SRP_gN_cache_delete(sk, i) ((SRP_gN_cache *)OPENSSL_sk_delete(ossl_check_SRP_gN_cache_sk_type(sk), (i))) 57 #define sk_SRP_gN_cache_delete_ptr(sk, ptr) ((SRP_gN_cache *)OPENSSL_sk_delete_ptr(ossl_check_SRP_gN_cache_sk_type(sk), ossl_check_SRP_gN_cache_type(ptr))) 58 #define sk_SRP_gN_cache_push(sk, ptr) OPENSSL_sk_push(ossl_check_SRP_gN_cache_sk_type(sk), ossl_check_SRP_gN_cache_type(ptr)) 59 #define sk_SRP_gN_cache_unshift(sk, ptr) OPENSSL_sk_unshift(ossl_check_SRP_gN_cache_sk_type(sk), ossl_check_SRP_gN_cache_type(ptr)) 60 #define sk_SRP_gN_cache_pop(sk) ((SRP_gN_cache *)OPENSSL_sk_pop(ossl_check_SRP_gN_cache_sk_type(sk))) 61 #define sk_SRP_gN_cache_shift(sk) ((SRP_gN_cache *)OPENSSL_sk_shift(ossl_check_SRP_gN_cache_sk_type(sk))) 62 #define sk_SRP_gN_cache_pop_free(sk, freefunc) OPENSSL_sk_pop_free(ossl_check_SRP_gN_cache_sk_type(sk),ossl_check_SRP_gN_cache_freefunc_type(freefunc)) 63 #define sk_SRP_gN_cache_insert(sk, ptr, idx) OPENSSL_sk_insert(ossl_check_SRP_gN_cache_sk_type(sk), ossl_check_SRP_gN_cache_type(ptr), (idx)) 64 #define sk_SRP_gN_cache_set(sk, idx, ptr) ((SRP_gN_cache *)OPENSSL_sk_set(ossl_check_SRP_gN_cache_sk_type(sk), (idx), ossl_check_SRP_gN_cache_type(ptr))) 65 #define sk_SRP_gN_cache_find(sk, ptr) OPENSSL_sk_find(ossl_check_SRP_gN_cache_sk_type(sk), ossl_check_SRP_gN_cache_type(ptr)) 66 #define sk_SRP_gN_cache_find_ex(sk, ptr) OPENSSL_sk_find_ex(ossl_check_SRP_gN_cache_sk_type(sk), ossl_check_SRP_gN_cache_type(ptr)) 67 #define sk_SRP_gN_cache_find_all(sk, ptr, pnum) OPENSSL_sk_find_all(ossl_check_SRP_gN_cache_sk_type(sk), ossl_check_SRP_gN_cache_type(ptr), pnum) 68 #define sk_SRP_gN_cache_sort(sk) OPENSSL_sk_sort(ossl_check_SRP_gN_cache_sk_type(sk)) 69 #define sk_SRP_gN_cache_is_sorted(sk) OPENSSL_sk_is_sorted(ossl_check_const_SRP_gN_cache_sk_type(sk)) 70 #define sk_SRP_gN_cache_dup(sk) ((STACK_OF(SRP_gN_cache) *)OPENSSL_sk_dup(ossl_check_const_SRP_gN_cache_sk_type(sk))) 71 #define sk_SRP_gN_cache_deep_copy(sk, copyfunc, freefunc) ((STACK_OF(SRP_gN_cache) *)OPENSSL_sk_deep_copy(ossl_check_const_SRP_gN_cache_sk_type(sk), ossl_check_SRP_gN_cache_copyfunc_type(copyfunc), ossl_check_SRP_gN_cache_freefunc_type(freefunc))) 72 #define sk_SRP_gN_cache_set_cmp_func(sk, cmp) ((sk_SRP_gN_cache_compfunc)OPENSSL_sk_set_cmp_func(ossl_check_SRP_gN_cache_sk_type(sk), ossl_check_SRP_gN_cache_compfunc_type(cmp))) 73 74 75 76 typedef struct SRP_user_pwd_st { 77 /* Owned by us. */ 78 char *id; 79 BIGNUM *s; 80 BIGNUM *v; 81 /* Not owned by us. */ 82 const BIGNUM *g; 83 const BIGNUM *N; 84 /* Owned by us. */ 85 char *info; 86 } SRP_user_pwd; 87 SKM_DEFINE_STACK_OF_INTERNAL(SRP_user_pwd, SRP_user_pwd, SRP_user_pwd) 88 #define sk_SRP_user_pwd_num(sk) OPENSSL_sk_num(ossl_check_const_SRP_user_pwd_sk_type(sk)) 89 #define sk_SRP_user_pwd_value(sk, idx) ((SRP_user_pwd *)OPENSSL_sk_value(ossl_check_const_SRP_user_pwd_sk_type(sk), (idx))) 90 #define sk_SRP_user_pwd_new(cmp) ((STACK_OF(SRP_user_pwd) *)OPENSSL_sk_new(ossl_check_SRP_user_pwd_compfunc_type(cmp))) 91 #define sk_SRP_user_pwd_new_null() ((STACK_OF(SRP_user_pwd) *)OPENSSL_sk_new_null()) 92 #define sk_SRP_user_pwd_new_reserve(cmp, n) ((STACK_OF(SRP_user_pwd) *)OPENSSL_sk_new_reserve(ossl_check_SRP_user_pwd_compfunc_type(cmp), (n))) 93 #define sk_SRP_user_pwd_reserve(sk, n) OPENSSL_sk_reserve(ossl_check_SRP_user_pwd_sk_type(sk), (n)) 94 #define sk_SRP_user_pwd_free(sk) OPENSSL_sk_free(ossl_check_SRP_user_pwd_sk_type(sk)) 95 #define sk_SRP_user_pwd_zero(sk) OPENSSL_sk_zero(ossl_check_SRP_user_pwd_sk_type(sk)) 96 #define sk_SRP_user_pwd_delete(sk, i) ((SRP_user_pwd *)OPENSSL_sk_delete(ossl_check_SRP_user_pwd_sk_type(sk), (i))) 97 #define sk_SRP_user_pwd_delete_ptr(sk, ptr) ((SRP_user_pwd *)OPENSSL_sk_delete_ptr(ossl_check_SRP_user_pwd_sk_type(sk), ossl_check_SRP_user_pwd_type(ptr))) 98 #define sk_SRP_user_pwd_push(sk, ptr) OPENSSL_sk_push(ossl_check_SRP_user_pwd_sk_type(sk), ossl_check_SRP_user_pwd_type(ptr)) 99 #define sk_SRP_user_pwd_unshift(sk, ptr) OPENSSL_sk_unshift(ossl_check_SRP_user_pwd_sk_type(sk), ossl_check_SRP_user_pwd_type(ptr)) 100 #define sk_SRP_user_pwd_pop(sk) ((SRP_user_pwd *)OPENSSL_sk_pop(ossl_check_SRP_user_pwd_sk_type(sk))) 101 #define sk_SRP_user_pwd_shift(sk) ((SRP_user_pwd *)OPENSSL_sk_shift(ossl_check_SRP_user_pwd_sk_type(sk))) 102 #define sk_SRP_user_pwd_pop_free(sk, freefunc) OPENSSL_sk_pop_free(ossl_check_SRP_user_pwd_sk_type(sk),ossl_check_SRP_user_pwd_freefunc_type(freefunc)) 103 #define sk_SRP_user_pwd_insert(sk, ptr, idx) OPENSSL_sk_insert(ossl_check_SRP_user_pwd_sk_type(sk), ossl_check_SRP_user_pwd_type(ptr), (idx)) 104 #define sk_SRP_user_pwd_set(sk, idx, ptr) ((SRP_user_pwd *)OPENSSL_sk_set(ossl_check_SRP_user_pwd_sk_type(sk), (idx), ossl_check_SRP_user_pwd_type(ptr))) 105 #define sk_SRP_user_pwd_find(sk, ptr) OPENSSL_sk_find(ossl_check_SRP_user_pwd_sk_type(sk), ossl_check_SRP_user_pwd_type(ptr)) 106 #define sk_SRP_user_pwd_find_ex(sk, ptr) OPENSSL_sk_find_ex(ossl_check_SRP_user_pwd_sk_type(sk), ossl_check_SRP_user_pwd_type(ptr)) 107 #define sk_SRP_user_pwd_find_all(sk, ptr, pnum) OPENSSL_sk_find_all(ossl_check_SRP_user_pwd_sk_type(sk), ossl_check_SRP_user_pwd_type(ptr), pnum) 108 #define sk_SRP_user_pwd_sort(sk) OPENSSL_sk_sort(ossl_check_SRP_user_pwd_sk_type(sk)) 109 #define sk_SRP_user_pwd_is_sorted(sk) OPENSSL_sk_is_sorted(ossl_check_const_SRP_user_pwd_sk_type(sk)) 110 #define sk_SRP_user_pwd_dup(sk) ((STACK_OF(SRP_user_pwd) *)OPENSSL_sk_dup(ossl_check_const_SRP_user_pwd_sk_type(sk))) 111 #define sk_SRP_user_pwd_deep_copy(sk, copyfunc, freefunc) ((STACK_OF(SRP_user_pwd) *)OPENSSL_sk_deep_copy(ossl_check_const_SRP_user_pwd_sk_type(sk), ossl_check_SRP_user_pwd_copyfunc_type(copyfunc), ossl_check_SRP_user_pwd_freefunc_type(freefunc))) 112 #define sk_SRP_user_pwd_set_cmp_func(sk, cmp) ((sk_SRP_user_pwd_compfunc)OPENSSL_sk_set_cmp_func(ossl_check_SRP_user_pwd_sk_type(sk), ossl_check_SRP_user_pwd_compfunc_type(cmp))) 113 114 115 OSSL_DEPRECATEDIN_3_0 116 SRP_user_pwd *SRP_user_pwd_new(void); 117 OSSL_DEPRECATEDIN_3_0 118 void SRP_user_pwd_free(SRP_user_pwd *user_pwd); 119 120 OSSL_DEPRECATEDIN_3_0 121 void SRP_user_pwd_set_gN(SRP_user_pwd *user_pwd, const BIGNUM *g, 122 const BIGNUM *N); 123 OSSL_DEPRECATEDIN_3_0 124 int SRP_user_pwd_set1_ids(SRP_user_pwd *user_pwd, const char *id, 125 const char *info); 126 OSSL_DEPRECATEDIN_3_0 127 int SRP_user_pwd_set0_sv(SRP_user_pwd *user_pwd, BIGNUM *s, BIGNUM *v); 128 129 typedef struct SRP_VBASE_st { 130 STACK_OF(SRP_user_pwd) *users_pwd; 131 STACK_OF(SRP_gN_cache) *gN_cache; 132 /* to simulate a user */ 133 char *seed_key; 134 const BIGNUM *default_g; 135 const BIGNUM *default_N; 136 } SRP_VBASE; 137 138 /* 139 * Internal structure storing N and g pair 140 */ 141 typedef struct SRP_gN_st { 142 char *id; 143 const BIGNUM *g; 144 const BIGNUM *N; 145 } SRP_gN; 146 SKM_DEFINE_STACK_OF_INTERNAL(SRP_gN, SRP_gN, SRP_gN) 147 #define sk_SRP_gN_num(sk) OPENSSL_sk_num(ossl_check_const_SRP_gN_sk_type(sk)) 148 #define sk_SRP_gN_value(sk, idx) ((SRP_gN *)OPENSSL_sk_value(ossl_check_const_SRP_gN_sk_type(sk), (idx))) 149 #define sk_SRP_gN_new(cmp) ((STACK_OF(SRP_gN) *)OPENSSL_sk_new(ossl_check_SRP_gN_compfunc_type(cmp))) 150 #define sk_SRP_gN_new_null() ((STACK_OF(SRP_gN) *)OPENSSL_sk_new_null()) 151 #define sk_SRP_gN_new_reserve(cmp, n) ((STACK_OF(SRP_gN) *)OPENSSL_sk_new_reserve(ossl_check_SRP_gN_compfunc_type(cmp), (n))) 152 #define sk_SRP_gN_reserve(sk, n) OPENSSL_sk_reserve(ossl_check_SRP_gN_sk_type(sk), (n)) 153 #define sk_SRP_gN_free(sk) OPENSSL_sk_free(ossl_check_SRP_gN_sk_type(sk)) 154 #define sk_SRP_gN_zero(sk) OPENSSL_sk_zero(ossl_check_SRP_gN_sk_type(sk)) 155 #define sk_SRP_gN_delete(sk, i) ((SRP_gN *)OPENSSL_sk_delete(ossl_check_SRP_gN_sk_type(sk), (i))) 156 #define sk_SRP_gN_delete_ptr(sk, ptr) ((SRP_gN *)OPENSSL_sk_delete_ptr(ossl_check_SRP_gN_sk_type(sk), ossl_check_SRP_gN_type(ptr))) 157 #define sk_SRP_gN_push(sk, ptr) OPENSSL_sk_push(ossl_check_SRP_gN_sk_type(sk), ossl_check_SRP_gN_type(ptr)) 158 #define sk_SRP_gN_unshift(sk, ptr) OPENSSL_sk_unshift(ossl_check_SRP_gN_sk_type(sk), ossl_check_SRP_gN_type(ptr)) 159 #define sk_SRP_gN_pop(sk) ((SRP_gN *)OPENSSL_sk_pop(ossl_check_SRP_gN_sk_type(sk))) 160 #define sk_SRP_gN_shift(sk) ((SRP_gN *)OPENSSL_sk_shift(ossl_check_SRP_gN_sk_type(sk))) 161 #define sk_SRP_gN_pop_free(sk, freefunc) OPENSSL_sk_pop_free(ossl_check_SRP_gN_sk_type(sk),ossl_check_SRP_gN_freefunc_type(freefunc)) 162 #define sk_SRP_gN_insert(sk, ptr, idx) OPENSSL_sk_insert(ossl_check_SRP_gN_sk_type(sk), ossl_check_SRP_gN_type(ptr), (idx)) 163 #define sk_SRP_gN_set(sk, idx, ptr) ((SRP_gN *)OPENSSL_sk_set(ossl_check_SRP_gN_sk_type(sk), (idx), ossl_check_SRP_gN_type(ptr))) 164 #define sk_SRP_gN_find(sk, ptr) OPENSSL_sk_find(ossl_check_SRP_gN_sk_type(sk), ossl_check_SRP_gN_type(ptr)) 165 #define sk_SRP_gN_find_ex(sk, ptr) OPENSSL_sk_find_ex(ossl_check_SRP_gN_sk_type(sk), ossl_check_SRP_gN_type(ptr)) 166 #define sk_SRP_gN_find_all(sk, ptr, pnum) OPENSSL_sk_find_all(ossl_check_SRP_gN_sk_type(sk), ossl_check_SRP_gN_type(ptr), pnum) 167 #define sk_SRP_gN_sort(sk) OPENSSL_sk_sort(ossl_check_SRP_gN_sk_type(sk)) 168 #define sk_SRP_gN_is_sorted(sk) OPENSSL_sk_is_sorted(ossl_check_const_SRP_gN_sk_type(sk)) 169 #define sk_SRP_gN_dup(sk) ((STACK_OF(SRP_gN) *)OPENSSL_sk_dup(ossl_check_const_SRP_gN_sk_type(sk))) 170 #define sk_SRP_gN_deep_copy(sk, copyfunc, freefunc) ((STACK_OF(SRP_gN) *)OPENSSL_sk_deep_copy(ossl_check_const_SRP_gN_sk_type(sk), ossl_check_SRP_gN_copyfunc_type(copyfunc), ossl_check_SRP_gN_freefunc_type(freefunc))) 171 #define sk_SRP_gN_set_cmp_func(sk, cmp) ((sk_SRP_gN_compfunc)OPENSSL_sk_set_cmp_func(ossl_check_SRP_gN_sk_type(sk), ossl_check_SRP_gN_compfunc_type(cmp))) 172 173 174 175 OSSL_DEPRECATEDIN_3_0 176 SRP_VBASE *SRP_VBASE_new(char *seed_key); 177 OSSL_DEPRECATEDIN_3_0 178 void SRP_VBASE_free(SRP_VBASE *vb); 179 OSSL_DEPRECATEDIN_3_0 180 int SRP_VBASE_init(SRP_VBASE *vb, char *verifier_file); 181 182 OSSL_DEPRECATEDIN_3_0 183 int SRP_VBASE_add0_user(SRP_VBASE *vb, SRP_user_pwd *user_pwd); 184 185 /* NOTE: unlike in SRP_VBASE_get_by_user, caller owns the returned pointer.*/ 186 OSSL_DEPRECATEDIN_3_0 187 SRP_user_pwd *SRP_VBASE_get1_by_user(SRP_VBASE *vb, char *username); 188 189 OSSL_DEPRECATEDIN_3_0 190 char *SRP_create_verifier_ex(const char *user, const char *pass, char **salt, 191 char **verifier, const char *N, const char *g, 192 OSSL_LIB_CTX *libctx, const char *propq); 193 OSSL_DEPRECATEDIN_3_0 194 char *SRP_create_verifier(const char *user, const char *pass, char **salt, 195 char **verifier, const char *N, const char *g); 196 OSSL_DEPRECATEDIN_3_0 197 int SRP_create_verifier_BN_ex(const char *user, const char *pass, BIGNUM **salt, 198 BIGNUM **verifier, const BIGNUM *N, 199 const BIGNUM *g, OSSL_LIB_CTX *libctx, 200 const char *propq); 201 OSSL_DEPRECATEDIN_3_0 202 int SRP_create_verifier_BN(const char *user, const char *pass, BIGNUM **salt, 203 BIGNUM **verifier, const BIGNUM *N, 204 const BIGNUM *g); 205 206 # define SRP_NO_ERROR 0 207 # define SRP_ERR_VBASE_INCOMPLETE_FILE 1 208 # define SRP_ERR_VBASE_BN_LIB 2 209 # define SRP_ERR_OPEN_FILE 3 210 # define SRP_ERR_MEMORY 4 211 212 # define DB_srptype 0 213 # define DB_srpverifier 1 214 # define DB_srpsalt 2 215 # define DB_srpid 3 216 # define DB_srpgN 4 217 # define DB_srpinfo 5 218 # undef DB_NUMBER 219 # define DB_NUMBER 6 220 221 # define DB_SRP_INDEX 'I' 222 # define DB_SRP_VALID 'V' 223 # define DB_SRP_REVOKED 'R' 224 # define DB_SRP_MODIF 'v' 225 226 /* see srp.c */ 227 OSSL_DEPRECATEDIN_3_0 228 char *SRP_check_known_gN_param(const BIGNUM *g, const BIGNUM *N); 229 OSSL_DEPRECATEDIN_3_0 230 SRP_gN *SRP_get_default_gN(const char *id); 231 232 /* server side .... */ 233 OSSL_DEPRECATEDIN_3_0 234 BIGNUM *SRP_Calc_server_key(const BIGNUM *A, const BIGNUM *v, const BIGNUM *u, 235 const BIGNUM *b, const BIGNUM *N); 236 OSSL_DEPRECATEDIN_3_0 237 BIGNUM *SRP_Calc_B_ex(const BIGNUM *b, const BIGNUM *N, const BIGNUM *g, 238 const BIGNUM *v, OSSL_LIB_CTX *libctx, const char *propq); 239 OSSL_DEPRECATEDIN_3_0 240 BIGNUM *SRP_Calc_B(const BIGNUM *b, const BIGNUM *N, const BIGNUM *g, 241 const BIGNUM *v); 242 243 OSSL_DEPRECATEDIN_3_0 244 int SRP_Verify_A_mod_N(const BIGNUM *A, const BIGNUM *N); 245 OSSL_DEPRECATEDIN_3_0 246 BIGNUM *SRP_Calc_u_ex(const BIGNUM *A, const BIGNUM *B, const BIGNUM *N, 247 OSSL_LIB_CTX *libctx, const char *propq); 248 OSSL_DEPRECATEDIN_3_0 249 BIGNUM *SRP_Calc_u(const BIGNUM *A, const BIGNUM *B, const BIGNUM *N); 250 251 /* client side .... */ 252 253 OSSL_DEPRECATEDIN_3_0 254 BIGNUM *SRP_Calc_x_ex(const BIGNUM *s, const char *user, const char *pass, 255 OSSL_LIB_CTX *libctx, const char *propq); 256 OSSL_DEPRECATEDIN_3_0 257 BIGNUM *SRP_Calc_x(const BIGNUM *s, const char *user, const char *pass); 258 OSSL_DEPRECATEDIN_3_0 259 BIGNUM *SRP_Calc_A(const BIGNUM *a, const BIGNUM *N, const BIGNUM *g); 260 OSSL_DEPRECATEDIN_3_0 261 BIGNUM *SRP_Calc_client_key_ex(const BIGNUM *N, const BIGNUM *B, const BIGNUM *g, 262 const BIGNUM *x, const BIGNUM *a, const BIGNUM *u, 263 OSSL_LIB_CTX *libctx, const char *propq); 264 OSSL_DEPRECATEDIN_3_0 265 BIGNUM *SRP_Calc_client_key(const BIGNUM *N, const BIGNUM *B, const BIGNUM *g, 266 const BIGNUM *x, const BIGNUM *a, const BIGNUM *u); 267 OSSL_DEPRECATEDIN_3_0 268 int SRP_Verify_B_mod_N(const BIGNUM *B, const BIGNUM *N); 269 270 # define SRP_MINIMAL_N 1024 271 272 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 273 274 /* This method ignores the configured seed and fails for an unknown user. */ 275 # ifndef OPENSSL_NO_DEPRECATED_1_1_0 276 OSSL_DEPRECATEDIN_1_1_0 277 SRP_user_pwd *SRP_VBASE_get_by_user(SRP_VBASE *vb, char *username); 278 # endif 279 280 # ifdef __cplusplus 281 } 282 # endif 283 # endif 284 285 #endif 286