summaryrefslogtreecommitdiff
path: root/src/assuan.h
blob: a9340019ffa450c9ad90d2fedff1c8985f5f080f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
/* assuan.c - Definitions for the Assuna protocol
 *	Copyright (C) 2001, 2002 Free Software Foundation, Inc.
 *
 * This file is part of GnuPG.
 *
 * GnuPG is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * GnuPG is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#ifndef ASSUAN_H
#define ASSUAN_H

#include <stdio.h>
#include <sys/types.h>

#ifdef __cplusplus
extern "C" { 
#if 0
 }
#endif
#endif

typedef enum {
  ASSUAN_No_Error = 0,
  ASSUAN_General_Error = 1,
  ASSUAN_Out_Of_Core = 2,
  ASSUAN_Invalid_Value = 3,
  ASSUAN_Timeout = 4,  
  ASSUAN_Read_Error = 5,
  ASSUAN_Write_Error = 6,
  ASSUAN_Problem_Starting_Server = 7,
  ASSUAN_Not_A_Server = 8,
  ASSUAN_Not_A_Client = 9,
  ASSUAN_Nested_Commands = 10,
  ASSUAN_Invalid_Response = 11,
  ASSUAN_No_Data_Callback = 12,
  ASSUAN_No_Inquire_Callback = 13,
  ASSUAN_Connect_Failed = 14,
  ASSUAN_Accept_Failed = 15,

  /* error codes above 99 are meant as status codes */
  ASSUAN_Not_Implemented = 100,
  ASSUAN_Server_Fault    = 101,
  ASSUAN_Invalid_Command = 102,
  ASSUAN_Unknown_Command = 103,
  ASSUAN_Syntax_Error    = 104,
  ASSUAN_Parameter_Error = 105,
  ASSUAN_Parameter_Conflict = 106,
  ASSUAN_Line_Too_Long = 107,
  ASSUAN_Line_Not_Terminated = 108,
  ASSUAN_No_Input = 109,
  ASSUAN_No_Output = 110,
  ASSUAN_Canceled = 111,
  ASSUAN_Unsupported_Algorithm = 112,
  ASSUAN_Server_Resource_Problem = 113,
  ASSUAN_Server_IO_Error = 114,
  ASSUAN_Server_Bug = 115,
  ASSUAN_No_Data_Available = 116,
  ASSUAN_Invalid_Data = 117,
  ASSUAN_Unexpected_Command = 118,
  ASSUAN_Too_Much_Data = 119,
  ASSUAN_Inquire_Unknown = 120,
  ASSUAN_Inquire_Error = 121,
  ASSUAN_Invalid_Option = 122,
  ASSUAN_Invalid_Index = 123,
  ASSUAN_Unexpected_Status = 124,
  ASSUAN_Unexpected_Data = 125,
  ASSUAN_Invalid_Status = 126,

  ASSUAN_Not_Confirmed = 128,

  ASSUAN_Bad_Certificate = 201,
  ASSUAN_Bad_Certificate_Path = 202,
  ASSUAN_Missing_Certificate = 203,
  ASSUAN_Bad_Signature = 204,
  ASSUAN_No_Agent = 205,
  ASSUAN_Agent_Error = 206,
  ASSUAN_No_Public_Key = 207,
  ASSUAN_No_Secret_Key = 208,
  ASSUAN_Invalid_Name = 209,

  ASSUAN_Cert_Revoked = 301,
  ASSUAN_No_CRL_For_Cert = 302,
  ASSUAN_CRL_Too_Old = 303,
  ASSUAN_Not_Trusted = 304,

  ASSUAN_Card_Error = 401,
  ASSUAN_Invalid_Card = 402,
  ASSUAN_No_PKCS15_App = 403,
  ASSUAN_Card_Not_Present = 404,
  ASSUAN_Invalid_Id = 405

} AssuanError;

/* This is a list of pre-registered ASSUAN commands */
typedef enum {
  ASSUAN_CMD_NOP = 0,
  ASSUAN_CMD_CANCEL,    /* cancel the current request */
  ASSUAN_CMD_BYE,
  ASSUAN_CMD_AUTH,
  ASSUAN_CMD_RESET,
  ASSUAN_CMD_OPTION,
  ASSUAN_CMD_DATA,
  ASSUAN_CMD_END,
  ASSUAN_CMD_INPUT,
  ASSUAN_CMD_OUTPUT,

  ASSUAN_CMD_USER = 256  /* Other commands should be used with this offset*/
} AssuanCommand;

#define ASSUAN_LINELENGTH 1002 /* 1000 + [CR,]LF */

struct assuan_context_s;
typedef struct assuan_context_s *ASSUAN_CONTEXT;

/*-- assuan-handler.c --*/
int assuan_register_command (ASSUAN_CONTEXT ctx,
                             int cmd_id, const char *cmd_string,
                             int (*handler)(ASSUAN_CONTEXT, char *));
int assuan_register_bye_notify (ASSUAN_CONTEXT ctx,
                                void (*fnc)(ASSUAN_CONTEXT));
int assuan_register_reset_notify (ASSUAN_CONTEXT ctx,
                                  void (*fnc)(ASSUAN_CONTEXT));
int assuan_register_cancel_notify (ASSUAN_CONTEXT ctx,
                                   void (*fnc)(ASSUAN_CONTEXT));
int assuan_register_input_notify (ASSUAN_CONTEXT ctx,
                                  void (*fnc)(ASSUAN_CONTEXT, const char *));
int assuan_register_output_notify (ASSUAN_CONTEXT ctx,
                                  void (*fnc)(ASSUAN_CONTEXT, const char *));

int assuan_register_option_handler (ASSUAN_CONTEXT ctx,
                                    int (*fnc)(ASSUAN_CONTEXT,
                                               const char*, const char*));

int assuan_process (ASSUAN_CONTEXT ctx);
int assuan_process_next (ASSUAN_CONTEXT ctx);
int assuan_get_active_fds (ASSUAN_CONTEXT ctx, int what,
                           int *fdarray, int fdarraysize);


FILE *assuan_get_data_fp (ASSUAN_CONTEXT ctx);
AssuanError assuan_set_okay_line (ASSUAN_CONTEXT ctx, const char *line);
void assuan_write_status (ASSUAN_CONTEXT ctx,
                          const char *keyword, const char *text);


/*-- assuan-listen.c --*/
AssuanError assuan_set_hello_line (ASSUAN_CONTEXT ctx, const char *line);
AssuanError assuan_accept (ASSUAN_CONTEXT ctx);
int assuan_get_input_fd (ASSUAN_CONTEXT ctx);
int assuan_get_output_fd (ASSUAN_CONTEXT ctx);
AssuanError assuan_close_input_fd (ASSUAN_CONTEXT ctx);
AssuanError assuan_close_output_fd (ASSUAN_CONTEXT ctx);


/*-- assuan-pipe-server.c --*/
int assuan_init_pipe_server (ASSUAN_CONTEXT *r_ctx, int filedes[2]);
void assuan_deinit_server (ASSUAN_CONTEXT ctx);

/*-- assuan-socket-server.c --*/
int assuan_init_socket_server (ASSUAN_CONTEXT *r_ctx, int listen_fd);


/*-- assuan-pipe-connect.c --*/
AssuanError assuan_pipe_connect (ASSUAN_CONTEXT *ctx, const char *name,
                                 char *const argv[], int *fd_child_list);
/*-- assuan-socket-connect.c --*/
AssuanError assuan_socket_connect (ASSUAN_CONTEXT *ctx, const char *name,
                                   pid_t server_pid);

/*-- assuan-connect.c --*/
void assuan_disconnect (ASSUAN_CONTEXT ctx);
pid_t assuan_get_pid (ASSUAN_CONTEXT ctx);

/*-- assuan-client.c --*/
AssuanError 
assuan_transact (ASSUAN_CONTEXT ctx,
                 const char *command,
                 AssuanError (*data_cb)(void *, const void *, size_t),
                 void *data_cb_arg,
                 AssuanError (*inquire_cb)(void*, const char *),
                 void *inquire_cb_arg,
                 AssuanError (*status_cb)(void*, const char *),
                 void *status_cb_arg);


/*-- assuan-inquire.c --*/
AssuanError assuan_inquire (ASSUAN_CONTEXT ctx, const char *keyword,
                            char **r_buffer, size_t *r_length, size_t maxlen);

/*-- assuan-buffer.c --*/
AssuanError assuan_read_line (ASSUAN_CONTEXT ctx,
                              char **line, size_t *linelen);
int assuan_pending_line (ASSUAN_CONTEXT ctx);
AssuanError assuan_write_line (ASSUAN_CONTEXT ctx, const char *line );
AssuanError assuan_send_data (ASSUAN_CONTEXT ctx,
                              const void *buffer, size_t length);


/*-- assuan-util.c --*/
void assuan_set_malloc_hooks ( void *(*new_alloc_func)(size_t n),
                               void *(*new_realloc_func)(void *p, size_t n),
                               void (*new_free_func)(void*) );
void assuan_set_log_stream (ASSUAN_CONTEXT ctx, FILE *fp);
int assuan_set_error (ASSUAN_CONTEXT ctx, int err, const char *text);
void assuan_set_pointer (ASSUAN_CONTEXT ctx, void *pointer);
void *assuan_get_pointer (ASSUAN_CONTEXT ctx);

void assuan_begin_confidential (ASSUAN_CONTEXT ctx);
void assuan_end_confidential (ASSUAN_CONTEXT ctx);

/*-- assuan-errors.c (built) --*/
const char *assuan_strerror (AssuanError err);


#ifdef __cplusplus
}
#endif
#endif /*ASSUAN_H*/