1 /* $OpenBSD: lhash.h,v 1.12 2014/06/12 15:49:29 deraadt Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as core.stdc.config.c_long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 /* 60 * Header for dynamic hash table routines 61 * Author - Eric Young 62 */ 63 module libressl_d.openssl.lhash; 64 65 66 private static import core.stdc.config; 67 private static import libressl_d.openssl.asn1; 68 private static import libressl_d.openssl.bio; 69 public import libressl_d.compat.stdio; 70 public import libressl_d.openssl.bio; 71 public import libressl_d.openssl.opensslconf; 72 73 version (OPENSSL_NO_BIO) { 74 } else { 75 public import libressl_d.openssl.bio; 76 } 77 78 extern (C): 79 nothrow @nogc: 80 81 struct lhash_node_st 82 { 83 void* data; 84 .lhash_node_st* next; 85 86 version (OPENSSL_NO_HASH_COMP) { 87 } else { 88 core.stdc.config.c_ulong hash; 89 } 90 } 91 92 alias LHASH_NODE = .lhash_node_st; 93 94 alias LHASH_COMP_FN_TYPE = extern (C) nothrow @nogc int function(const (void)*, const (void)*); 95 alias LHASH_HASH_FN_TYPE = extern (C) nothrow @nogc core.stdc.config.c_ulong function(const (void)*); 96 alias LHASH_DOALL_FN_TYPE = extern (C) nothrow @nogc void function(void*); 97 alias LHASH_DOALL_ARG_FN_TYPE = extern (C) nothrow @nogc void function(void*, void*); 98 99 /* 100 * Macros for declaring and implementing type-safe wrappers for LHASH callbacks. 101 * This way, callbacks can be provided to LHASH structures without function 102 * pointer casting and the macro-defined callbacks provide per-variable casting 103 * before deferring to the underlying type-specific callbacks. NB: It is 104 * possible to place a "static" in front of both the DECLARE and IMPLEMENT 105 * macros if the functions are strictly internal. 106 */ 107 108 /* First: "hash" functions */ 109 //#define DECLARE_LHASH_HASH_FN(name, o_type) core.stdc.config.c_ulong name##_LHASH_HASH(const (void)*); 110 //#define IMPLEMENT_LHASH_HASH_FN(name, o_type) core.stdc.config.c_ulong name##_LHASH_HASH(const (void)* arg) { const (o_type)* a = arg; return name##_hash(a); } 111 //#define LHASH_HASH_FN(name) name##_LHASH_HASH 112 113 /* Second: "compare" functions */ 114 //#define DECLARE_LHASH_COMP_FN(name, o_type) int name##_LHASH_COMP(const (void)*, const (void)*); 115 //#define IMPLEMENT_LHASH_COMP_FN(name, o_type) int name##_LHASH_COMP(const (void)* arg1, const (void)* arg2) { const (o_type)* a = arg1; const (o_type)* b = arg2; return name##_cmp(a, b); } 116 //#define LHASH_COMP_FN(name) name##_LHASH_COMP 117 118 /* Third: "doall" functions */ 119 //#define DECLARE_LHASH_DOALL_FN(name, o_type) void name##_LHASH_DOALL(void*); 120 //#define IMPLEMENT_LHASH_DOALL_FN(name, o_type) void name##_LHASH_DOALL(void* arg) { o_type* a = arg; name##_doall(a); } 121 //#define LHASH_DOALL_FN(name) name##_LHASH_DOALL 122 123 /* Fourth: "doall_arg" functions */ 124 //#define DECLARE_LHASH_DOALL_ARG_FN(name, o_type, a_type) void name##_LHASH_DOALL_ARG(void*, void*); 125 //#define IMPLEMENT_LHASH_DOALL_ARG_FN(name, o_type, a_type) void name##_LHASH_DOALL_ARG(void* arg1, void* arg2) { o_type* a = arg1; a_type* b = arg2; name##_doall_arg(a, b); } 126 //#define LHASH_DOALL_ARG_FN(name) name##_LHASH_DOALL_ARG 127 128 struct lhash_st 129 { 130 .LHASH_NODE** b; 131 .LHASH_COMP_FN_TYPE comp; 132 .LHASH_HASH_FN_TYPE hash; 133 uint num_nodes; 134 uint num_alloc_nodes; 135 uint p; 136 uint pmax; 137 138 /** 139 * load times 256 140 */ 141 core.stdc.config.c_ulong up_load; 142 143 ///Ditto 144 core.stdc.config.c_ulong down_load; 145 146 core.stdc.config.c_ulong num_items; 147 148 core.stdc.config.c_ulong num_expands; 149 core.stdc.config.c_ulong num_expand_reallocs; 150 core.stdc.config.c_ulong num_contracts; 151 core.stdc.config.c_ulong num_contract_reallocs; 152 core.stdc.config.c_ulong num_hash_calls; 153 core.stdc.config.c_ulong num_comp_calls; 154 core.stdc.config.c_ulong num_insert; 155 core.stdc.config.c_ulong num_replace; 156 core.stdc.config.c_ulong num_delete; 157 core.stdc.config.c_ulong num_no_delete; 158 core.stdc.config.c_ulong num_retrieve; 159 core.stdc.config.c_ulong num_retrieve_miss; 160 core.stdc.config.c_ulong num_hash_comps; 161 162 int error; 163 } 164 165 /** 166 * Do not use _LHASH directly, use LHASH_OF 167 * and friends 168 */ 169 alias _LHASH = .lhash_st; 170 171 enum LH_LOAD_MULT = 256; 172 173 /* 174 * Indicates a malloc() error in the last call, this is only bad 175 * in lh_insert(). 176 */ 177 pragma(inline, true) 178 pure nothrow @trusted @nogc @live 179 int lh_error(scope const ._LHASH* lh) 180 181 in 182 { 183 assert(lh != null); 184 } 185 186 do 187 { 188 return lh.error; 189 } 190 191 ._LHASH* lh_new(.LHASH_HASH_FN_TYPE h, .LHASH_COMP_FN_TYPE c); 192 void lh_free(._LHASH* lh); 193 void* lh_insert(._LHASH* lh, void* data); 194 void* lh_delete(._LHASH* lh, const (void)* data); 195 void* lh_retrieve(._LHASH* lh, const (void)* data); 196 void lh_doall(._LHASH* lh, .LHASH_DOALL_FN_TYPE func); 197 void lh_doall_arg(._LHASH* lh, .LHASH_DOALL_ARG_FN_TYPE func, void* arg); 198 core.stdc.config.c_ulong lh_strhash(const (char)* c); 199 core.stdc.config.c_ulong lh_num_items(const (._LHASH)* lh); 200 201 void lh_stats(const (._LHASH)* lh, libressl_d.compat.stdio.FILE* out_); 202 void lh_node_stats(const (._LHASH)* lh, libressl_d.compat.stdio.FILE* out_); 203 void lh_node_usage_stats(const (._LHASH)* lh, libressl_d.compat.stdio.FILE* out_); 204 205 version (OPENSSL_NO_BIO) { 206 } else { 207 void lh_stats_bio(const (._LHASH)* lh, libressl_d.openssl.bio.BIO* out_); 208 void lh_node_stats_bio(const (._LHASH)* lh, libressl_d.openssl.bio.BIO* out_); 209 void lh_node_usage_stats_bio(const (._LHASH)* lh, libressl_d.openssl.bio.BIO* out_); 210 } 211 212 /* Type checking... */ 213 214 //#define LHASH_OF(type) struct lhash_st_##type 215 216 //#define DECLARE_LHASH_OF(type) LHASH_OF(type) { int dummy; } 217 218 //#define CHECKED_LHASH_OF(type, lh) ((._LHASH*) libressl_d.openssl.asn1.CHECKED_PTR_OF(LHASH_OF(type), lh)) 219 220 /* Define wrapper functions. */ 221 //#define LHM_lh_new(type, name) ((LHASH_OF(type)*) .lh_new(.LHASH_HASH_FN(name), .LHASH_COMP_FN(name))) 222 //#define LHM_lh_error(type, lh) .lh_error(CHECKED_LHASH_OF(type, lh)) 223 //#define LHM_lh_insert(type, lh, inst) ((type*) .lh_insert(CHECKED_LHASH_OF(type, lh), libressl_d.openssl.asn1.CHECKED_PTR_OF(type, inst))) 224 //#define LHM_lh_retrieve(type, lh, inst) ((type*) .lh_retrieve(CHECKED_LHASH_OF(type, lh), libressl_d.openssl.asn1.CHECKED_PTR_OF(type, inst))) 225 //#define LHM_lh_delete(type, lh, inst) ((type*) .lh_delete(CHECKED_LHASH_OF(type, lh), libressl_d.openssl.asn1.CHECKED_PTR_OF(type, inst))) 226 //#define LHM_lh_doall(type, lh, fn) .lh_doall(CHECKED_LHASH_OF(type, lh), fn) 227 //#define LHM_lh_doall_arg(type, lh, fn, arg_type, arg) .lh_doall_arg(CHECKED_LHASH_OF(type, lh), fn, libressl_d.openssl.asn1.CHECKED_PTR_OF(arg_type, arg)) 228 //#define LHM_lh_num_items(type, lh) .lh_num_items(CHECKED_LHASH_OF(type, lh)) 229 //#define LHM_lh_down_load(type, lh) (CHECKED_LHASH_OF(type, lh).down_load) 230 //#define LHM_lh_node_stats_bio(type, lh, out_) .lh_node_stats_bio(CHECKED_LHASH_OF(type, lh), out_) 231 //#define LHM_lh_node_usage_stats_bio(type, lh, out_) .lh_node_usage_stats_bio(CHECKED_LHASH_OF(type, lh), out_) 232 //#define LHM_lh_stats_bio(type, lh, out_) .lh_stats_bio(CHECKED_LHASH_OF(type, lh), out_) 233 //#define LHM_lh_free(type, lh) lh_free(CHECKED_LHASH_OF(type, lh)) 234 235 //DECLARE_LHASH_OF(OPENSSL_STRING) 236 struct lhash_st_OPENSSL_STRING 237 { 238 int dummy; 239 } 240 241 //DECLARE_LHASH_OF(OPENSSL_CSTRING) 242 struct lhash_st_OPENSSL_CSTRING 243 { 244 int dummy; 245 }