1*de0e0e4dSAntonio Huete Jimenez /* $OpenBSD: bio_local.h,v 1.3 2022/01/14 08:40:57 tb Exp $ */ 2*de0e0e4dSAntonio Huete Jimenez /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3*de0e0e4dSAntonio Huete Jimenez * All rights reserved. 4*de0e0e4dSAntonio Huete Jimenez * 5*de0e0e4dSAntonio Huete Jimenez * This package is an SSL implementation written 6*de0e0e4dSAntonio Huete Jimenez * by Eric Young (eay@cryptsoft.com). 7*de0e0e4dSAntonio Huete Jimenez * The implementation was written so as to conform with Netscapes SSL. 8*de0e0e4dSAntonio Huete Jimenez * 9*de0e0e4dSAntonio Huete Jimenez * This library is free for commercial and non-commercial use as long as 10*de0e0e4dSAntonio Huete Jimenez * the following conditions are aheared to. The following conditions 11*de0e0e4dSAntonio Huete Jimenez * apply to all code found in this distribution, be it the RC4, RSA, 12*de0e0e4dSAntonio Huete Jimenez * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13*de0e0e4dSAntonio Huete Jimenez * included with this distribution is covered by the same copyright terms 14*de0e0e4dSAntonio Huete Jimenez * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15*de0e0e4dSAntonio Huete Jimenez * 16*de0e0e4dSAntonio Huete Jimenez * Copyright remains Eric Young's, and as such any Copyright notices in 17*de0e0e4dSAntonio Huete Jimenez * the code are not to be removed. 18*de0e0e4dSAntonio Huete Jimenez * If this package is used in a product, Eric Young should be given attribution 19*de0e0e4dSAntonio Huete Jimenez * as the author of the parts of the library used. 20*de0e0e4dSAntonio Huete Jimenez * This can be in the form of a textual message at program startup or 21*de0e0e4dSAntonio Huete Jimenez * in documentation (online or textual) provided with the package. 22*de0e0e4dSAntonio Huete Jimenez * 23*de0e0e4dSAntonio Huete Jimenez * Redistribution and use in source and binary forms, with or without 24*de0e0e4dSAntonio Huete Jimenez * modification, are permitted provided that the following conditions 25*de0e0e4dSAntonio Huete Jimenez * are met: 26*de0e0e4dSAntonio Huete Jimenez * 1. Redistributions of source code must retain the copyright 27*de0e0e4dSAntonio Huete Jimenez * notice, this list of conditions and the following disclaimer. 28*de0e0e4dSAntonio Huete Jimenez * 2. Redistributions in binary form must reproduce the above copyright 29*de0e0e4dSAntonio Huete Jimenez * notice, this list of conditions and the following disclaimer in the 30*de0e0e4dSAntonio Huete Jimenez * documentation and/or other materials provided with the distribution. 31*de0e0e4dSAntonio Huete Jimenez * 3. All advertising materials mentioning features or use of this software 32*de0e0e4dSAntonio Huete Jimenez * must display the following acknowledgement: 33*de0e0e4dSAntonio Huete Jimenez * "This product includes cryptographic software written by 34*de0e0e4dSAntonio Huete Jimenez * Eric Young (eay@cryptsoft.com)" 35*de0e0e4dSAntonio Huete Jimenez * The word 'cryptographic' can be left out if the rouines from the library 36*de0e0e4dSAntonio Huete Jimenez * being used are not cryptographic related :-). 37*de0e0e4dSAntonio Huete Jimenez * 4. If you include any Windows specific code (or a derivative thereof) from 38*de0e0e4dSAntonio Huete Jimenez * the apps directory (application code) you must include an acknowledgement: 39*de0e0e4dSAntonio Huete Jimenez * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40*de0e0e4dSAntonio Huete Jimenez * 41*de0e0e4dSAntonio Huete Jimenez * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42*de0e0e4dSAntonio Huete Jimenez * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43*de0e0e4dSAntonio Huete Jimenez * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44*de0e0e4dSAntonio Huete Jimenez * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45*de0e0e4dSAntonio Huete Jimenez * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46*de0e0e4dSAntonio Huete Jimenez * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47*de0e0e4dSAntonio Huete Jimenez * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48*de0e0e4dSAntonio Huete Jimenez * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49*de0e0e4dSAntonio Huete Jimenez * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50*de0e0e4dSAntonio Huete Jimenez * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51*de0e0e4dSAntonio Huete Jimenez * SUCH DAMAGE. 52*de0e0e4dSAntonio Huete Jimenez * 53*de0e0e4dSAntonio Huete Jimenez * The licence and distribution terms for any publically available version or 54*de0e0e4dSAntonio Huete Jimenez * derivative of this code cannot be changed. i.e. this code cannot simply be 55*de0e0e4dSAntonio Huete Jimenez * copied and put under another distribution licence 56*de0e0e4dSAntonio Huete Jimenez * [including the GNU Public Licence.] 57*de0e0e4dSAntonio Huete Jimenez */ 58*de0e0e4dSAntonio Huete Jimenez 59*de0e0e4dSAntonio Huete Jimenez #ifndef HEADER_BIO_LOCAL_H 60*de0e0e4dSAntonio Huete Jimenez #define HEADER_BIO_LOCAL_H 61*de0e0e4dSAntonio Huete Jimenez 62*de0e0e4dSAntonio Huete Jimenez __BEGIN_HIDDEN_DECLS 63*de0e0e4dSAntonio Huete Jimenez 64*de0e0e4dSAntonio Huete Jimenez struct bio_method_st { 65*de0e0e4dSAntonio Huete Jimenez int type; 66*de0e0e4dSAntonio Huete Jimenez const char *name; 67*de0e0e4dSAntonio Huete Jimenez int (*bwrite)(BIO *, const char *, int); 68*de0e0e4dSAntonio Huete Jimenez int (*bread)(BIO *, char *, int); 69*de0e0e4dSAntonio Huete Jimenez int (*bputs)(BIO *, const char *); 70*de0e0e4dSAntonio Huete Jimenez int (*bgets)(BIO *, char *, int); 71*de0e0e4dSAntonio Huete Jimenez long (*ctrl)(BIO *, int, long, void *); 72*de0e0e4dSAntonio Huete Jimenez int (*create)(BIO *); 73*de0e0e4dSAntonio Huete Jimenez int (*destroy)(BIO *); 74*de0e0e4dSAntonio Huete Jimenez long (*callback_ctrl)(BIO *, int, BIO_info_cb *); 75*de0e0e4dSAntonio Huete Jimenez } /* BIO_METHOD */; 76*de0e0e4dSAntonio Huete Jimenez 77*de0e0e4dSAntonio Huete Jimenez struct bio_st { 78*de0e0e4dSAntonio Huete Jimenez const BIO_METHOD *method; 79*de0e0e4dSAntonio Huete Jimenez BIO_callback_fn callback; 80*de0e0e4dSAntonio Huete Jimenez BIO_callback_fn_ex callback_ex; 81*de0e0e4dSAntonio Huete Jimenez char *cb_arg; /* first argument for the callback */ 82*de0e0e4dSAntonio Huete Jimenez 83*de0e0e4dSAntonio Huete Jimenez int init; 84*de0e0e4dSAntonio Huete Jimenez int shutdown; 85*de0e0e4dSAntonio Huete Jimenez int flags; /* extra storage */ 86*de0e0e4dSAntonio Huete Jimenez int retry_reason; 87*de0e0e4dSAntonio Huete Jimenez int num; 88*de0e0e4dSAntonio Huete Jimenez void *ptr; 89*de0e0e4dSAntonio Huete Jimenez struct bio_st *next_bio; /* used by filter BIOs */ 90*de0e0e4dSAntonio Huete Jimenez struct bio_st *prev_bio; /* used by filter BIOs */ 91*de0e0e4dSAntonio Huete Jimenez int references; 92*de0e0e4dSAntonio Huete Jimenez unsigned long num_read; 93*de0e0e4dSAntonio Huete Jimenez unsigned long num_write; 94*de0e0e4dSAntonio Huete Jimenez 95*de0e0e4dSAntonio Huete Jimenez CRYPTO_EX_DATA ex_data; 96*de0e0e4dSAntonio Huete Jimenez } /* BIO */; 97*de0e0e4dSAntonio Huete Jimenez 98*de0e0e4dSAntonio Huete Jimenez typedef struct bio_f_buffer_ctx_struct { 99*de0e0e4dSAntonio Huete Jimenez /* Buffers are setup like this: 100*de0e0e4dSAntonio Huete Jimenez * 101*de0e0e4dSAntonio Huete Jimenez * <---------------------- size -----------------------> 102*de0e0e4dSAntonio Huete Jimenez * +---------------------------------------------------+ 103*de0e0e4dSAntonio Huete Jimenez * | consumed | remaining | free space | 104*de0e0e4dSAntonio Huete Jimenez * +---------------------------------------------------+ 105*de0e0e4dSAntonio Huete Jimenez * <-- off --><------- len -------> 106*de0e0e4dSAntonio Huete Jimenez */ 107*de0e0e4dSAntonio Huete Jimenez 108*de0e0e4dSAntonio Huete Jimenez /* BIO *bio; */ /* this is now in the BIO struct */ 109*de0e0e4dSAntonio Huete Jimenez int ibuf_size; /* how big is the input buffer */ 110*de0e0e4dSAntonio Huete Jimenez int obuf_size; /* how big is the output buffer */ 111*de0e0e4dSAntonio Huete Jimenez 112*de0e0e4dSAntonio Huete Jimenez char *ibuf; /* the char array */ 113*de0e0e4dSAntonio Huete Jimenez int ibuf_len; /* how many bytes are in it */ 114*de0e0e4dSAntonio Huete Jimenez int ibuf_off; /* write/read offset */ 115*de0e0e4dSAntonio Huete Jimenez 116*de0e0e4dSAntonio Huete Jimenez char *obuf; /* the char array */ 117*de0e0e4dSAntonio Huete Jimenez int obuf_len; /* how many bytes are in it */ 118*de0e0e4dSAntonio Huete Jimenez int obuf_off; /* write/read offset */ 119*de0e0e4dSAntonio Huete Jimenez } BIO_F_BUFFER_CTX; 120*de0e0e4dSAntonio Huete Jimenez 121*de0e0e4dSAntonio Huete Jimenez __END_HIDDEN_DECLS 122*de0e0e4dSAntonio Huete Jimenez 123*de0e0e4dSAntonio Huete Jimenez #endif /* !HEADER_BIO_LOCAL_H */ 124