python/client.h

   1 /*
   2  * Copyright (c) 2014 Alexander Golovko <alexandro@onsec.ru>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are met:
   7  *
   8  * 1. Redistributions of source code must retain the above copyright notice,
   9  *    this list of conditions and the following disclaimer.
  10  *
  11  * 2. Redistributions in binary form must reproduce the above copyright notice,
  12  *    this list of conditions and the following disclaimer in the documentation
  13  *    and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  16  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  19  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25  * POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #ifndef __NSCANG_CLIENT_H
  29 #define __NSCANG_CLIENT_H
  30
  31 #include <openssl/ssl.h>
  32 #include <openssl/err.h>
  33
  34 #include "uthash.h"
  35
  36 typedef struct {
  37         SSL_CTX *ssl_ctx;
  38         BIO *bio;
  39         SSL *ssl;
  40         int state;
  41
  42         char *identity;
  43         char *psk;
  44
  45         int _errno;
  46         char errstr[1024];
  47
  48         UT_hash_handle hh;
  49 } nscang_client_t;
  50
  51 #define NSCANG_STATE_NONE 0
  52 #define NSCANG_STATE_NEW  1
  53 #define NSCANG_STATE_MOIN 2
  54
  55 #define NSCANG_RESP_MOIN 1
  56 #define NSCANG_RESP_OKAY 2
  57
  58 #define NSCANG_ERROR_MALLOC             1
  59 #define NSCANG_ERROR_TIMEOUT            2
  60 #define NSCANG_ERROR_TOO_LONG_RESPONSE  3
  61 #define NSCANG_ERROR_BAD_PROTO_VERSION  4
  62 #define NSCANG_ERROR_PROTOCOL_MISMATCH  5
  63 #define NSCANG_ERROR_UNKNOWN_RESPONSE   6
  64 #define NSCANG_ERROR_BAIL               7
  65 #define NSCANG_ERROR_FAIL               8
  66 #define NSCANG_ERROR_BAD_STATE          9
  67 #define NSCANG_ERROR_LOCKING            10
  68
  69 #define NSCANG_ERROR_SSL_CTX_CREATE     101
  70 #define NSCANG_ERROR_SSL_CIPHERS        102
  71 #define NSCANG_ERROR_SSL_BIO_CREATE     103
  72 #define NSCANG_ERROR_SSL_CREATE         104
  73 #define NSCANG_ERROR_SSL                105
  74
  75 int nscang_client_init(nscang_client_t *c, char *host, int port,
  76                        char *ciphers, char *identity, char *psk);
  77 void nscang_client_free(nscang_client_t *c);
  78 void nscang_client_disconnect(nscang_client_t *c);
  79 int nscang_client_send_moin(nscang_client_t *c, int timeout);
  80 int nscang_client_send_push(nscang_client_t *c, char *host, char *service,
  81                             int status, char *message, int timeout);
  82 int nscang_client_send_quit(nscang_client_t *c);
  83 char *nscang_client_errstr(nscang_client_t *c, char *buf, int buf_size);
  84
  85 #endif /* __NSCANG_CLIENT_H */