trunk/Include/wptGPG.h

/* wptGPG.h - GnuPG interface
 *      Copyright (C) 2000-2005 Timo Schulz
 *
 * This file is part of WinPT.
 *
 * WinPT 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.
 *  
 * WinPT 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 WinPT; if not, write to the Free Software Foundation, 
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
 */

#ifndef WPT_GPG_H
#define WPT_GPG_H

#include "w32gpgme.h"
#include "wptKeyCache.h"
#include "wptNLS.h"


#define NO_STRICT 0

#define key_is_useable(key) (!(key)->revoked && !(key)->expired && !(key)->disabled)

enum setup_t {
    SETUP_KEYGEN    = 1,
    SETUP_IMPORT    = 2,
    SETUP_EXISTING  = 3
};

enum gpg_cmd_t {
    GPG_CMD_DECRYPT = 0,
    GPG_CMD_SIGN    = 1
};

enum keycache_t {
    KEYCACHE_PRV = 0,
    KEYCACHE_PUB = 1
};

enum entry_t {
    ENTRY_OPAQUE = 1,
    ENTRY_SINGLE = 2,
    ENTRY_MULTI  = 3,
    ENTRY_GROUP  = 4,
};

struct gpg_card_s;
typedef struct gpg_card_s * gpg_card_t;

/* GPG file association context. */
struct gpg_filetype {    
    const char *descr;
    const char *ext;
    int nicon;
};

/* Keycache refresh context. */
struct refresh_cache_s {
    int kr_reload;
    int kr_update;
    int tr_update;
};

struct gpg_option_s {
    struct gpg_option_s * next;
    char * name;
    char * val;
    unsigned int used:1;
    int type;  
};
typedef struct gpg_option_s * gpg_option_t;

struct gpg_member_s {
    struct gpg_member_s * next;
    char * name;
    unsigned int used:1;  
};
typedef struct gpg_member_s * gpg_member_t;

struct gpg_group_s {
    struct gpg_group_s * next;
    struct gpg_member_s * list;
    char * name;
    unsigned int used:1;  
};
typedef struct gpg_group_s * gpg_group_t;

struct gpg_optfile_s {
    struct gpg_option_s * list;
    struct gpg_group_s * grp;
};
typedef struct gpg_optfile_s * gpg_optfile_t;

static gpg_filetype gpg_filetypes[] = {
    {"GPG Detached Signature", ".sig", 1},
    {"GPG Encrypted Data",     ".gpg", 2},
    {"GPG Armored Data",       ".asc", 2},
    {0}
};

struct passphrase_cb_s {
    int gpg_cmd;        /* sign or decrypt. */
    int pwd_init;       /* 1 = passphrase request via dialog. */
    char *pwd;          /* actual passphrase. */
    char info[1024];    /* hold up the info message */
    char *title;        /* dialog title. */
    char keyid[16+1];   /* keyid of the secret key the pwd can be used for. */
    HWND hwnd;          /* handle of the dialog window. */
    int cancel;         /* 1 = user cancelled passphrase request. */
    unsigned int is_card:1; /* 1 = key stored on a smart card. */
    unsigned int bad_pwd:1; /* 1 = last passphrase was bad. */
    gpgme_ctx_t gpg;
    gpgme_recipient_t recipients;
    struct {
        int sym_algo;
        int s2k_mode;
        int s2k_hash;
    } sym;
};


static const char * gpg_sigstat[] = {
    _("Error during verification process."),
    _("The signature is good."),
    _("The signature is BAD!"),
    _("The signature could not be checked due to a missing key."),
    _("No valid OpenPGP signature."),
    _("Signature Error"),
    _("Good Signature (Expired Key)"),
    _("Good Signature (Revoked Key)"),
    NULL
};

int sigsum_to_index (gpgme_sigsum_t sum);
#define SIGSTAT_MASK 8
#define get_gpg_sigstat(sum) gpg_sigstat[sigsum_to_index ((sum)) % SIGSTAT_MASK]

/* This variable is 1 if IDEA is available. */
extern int idea_available;

/*-- wptGPG.cpp --*/
char* get_gnupg_default_key( void );
int set_gnupg_default_key( const char *key );
char* get_gnupg_config (void);
char* get_gnupg_keyring_from_options( const char *fname, int pub );
int check_gnupg_config (const char *fname, int *secrings, int *pubrings);
char* get_gnupg_path( void );
int check_gnupg_prog( void );
int gnupg_access_files (void);
char* get_gnupg_prog( void );
char* get_gnupg_keyring (int pub, int strict);
char* get_gnupg_cfgfile (void);
int set_gnupg_options( const char *buf, size_t buflen );
int gnupg_load_config (void);

int check_gnupg_options (const char *buf);
void init_gnupg_table (void);
void free_gnupg_table (void);
int keyring_check_last_access (void);
const char* gnupg_check_file_ext (const char *fname, int *r_type);
int gpg_check_permissions (int showmsg);
int gnupg_check_homedir (void);
int gnupg_access_keyring (int _pub);
void gnupg_backup_options ();
void gnupg_backup_keyrings (void);
void gnupg_display_error (void);
int gnupg_copy_keyrings (void);
int check_gnupg_engine (int *r_major, int *r_minor, int *r_patch);

/*-- wptGPGME.cpp --*/
const char * get_signature_status( gpgme_sigsum_t sigstat );
void keycache_reload( HWND dlg );

int get_pubkey (const char *keyid, gpgme_key_t *ret_key);
int winpt_get_pubkey (const char *keyid, struct winpt_key_s *k);
int get_seckey (const char *keyid, gpgme_key_t *ret_skey);
int winpt_get_seckey (const char *keyid, struct winpt_key_s *k);

void keycache_reload( HWND dlg );
void keycache_release (int cleanup);
gpgme_error_t keycache_update (int is_sec, const char *keyid);
gpgme_error_t keycache_init( const char *pubring, const char * secring );
void keycache_set_reload( int yes );
int keycache_get_reload( void );
gpg_keycache_t keycache_get_ctx( int _pub );

int count_insecure_elgkeys (void);

int gpg_encrypt_symmetric (void);


/*-- wptGPGParser.cpp --*/
/* find */
gpg_group_t find_group( gpg_optfile_t opt, const char *str );
gpg_option_t find_option( gpg_optfile_t opt, const char *str );
gpg_member_t find_member( gpg_optfile_t opt, const char *grp, const char *str );
/* delete */
int delete_group( gpg_optfile_t opt, const char *str );
int delete_member( gpg_optfile_t opt, const char *grp, const char *str );
int delete_option( gpg_optfile_t opt, const char *str );
/* add */
int modify_entry( gpg_optfile_t opt, int type, const char *name, const char *val );
int add_entry( gpg_optfile_t opt, int type, const char *name, const char *val );
int add_member( gpg_optfile_t opt, const char *grp, const char *str );
int add_group( gpg_optfile_t opt, const char *str );
/* high-level */
int parse_gpg_options( const char *file, gpg_optfile_t *r_opt );
int commit_gpg_options( const char *file, gpg_optfile_t opt );
void release_gpg_options( gpg_optfile_t opt );
/* memory */
void release_group( gpg_group_t grp );

/*-- wptPassphraseCB.cpp --*/
enum passdlg_t {
    PASSDLG_REPEAT = 0,
    PASSDLG_INIT = 1,  
    PASSDLG_STRICT = 2
};

void set_gpg_passphrase_cb (passphrase_cb_s *cb, gpgme_ctx_t ctx,
                            int cmd, HWND hwnd, const char *title);
void release_gpg_passphrase_cb (passphrase_cb_s *cb);

char * request_passphrase (const char *title, int flags, int *ret_cancel);
char * request_passphrase2 (const char *title, int flags, int *ret_cancel);
const char * passphrase_cb (void *opaque, const char * desc, void *r_hd);
char * get_key_userid (const char *keyid);
int check_passwd_quality (const char *pass, int strict);

/*-- wptGPGUtil.cpp --*/
gpgme_error_t gpg_rebuild_cache (char **r_inf);
gpgme_error_t gpg_get_version (char **r_inf);
void          gpg_set_debug_mode (int val);
gpgme_error_t gpg_export_seckey (const char *keyid, const char *outfile);
gpgme_error_t gpg_manage_ownertrust (char **data, int do_export);

char*  generate_revoc_input (int code, const char *cmt, const char *pass);
gpgme_error_t gpg_revoke_key (const char *inp_data, 
                              const char *keyid,
                              char **r_revcert);
gpgme_error_t gpg_decode_c_string (const char *src, char **destp, size_t len);
gpgme_error_t gpg_import_key_list (const char *fname, char **r_out);
gpgme_error_t get_uat_validity (const char *keyid, gpgme_validity_t *r_valid);

#endif /* WPT_GPG_H */
1	werner	37	/* wptGPG.h - GnuPG interface
2			* Copyright (C) 2000-2005 Timo Schulz
3			*
4			* This file is part of WinPT.
5			*
6			* WinPT is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU General Public License
8			* as published by the Free Software Foundation; either version 2
9			* of the License, or (at your option) any later version.
10			*
11			* WinPT is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with WinPT; if not, write to the Free Software Foundation,
18			* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#ifndef WPT_GPG_H
22			#define WPT_GPG_H
23
24			#include "w32gpgme.h"
25			#include "wptKeyCache.h"
26			#include "wptNLS.h"
27
28
29			#define NO_STRICT 0
30
31			#define key_is_useable(key) (!(key)->revoked && !(key)->expired && !(key)->disabled)
32
33			enum setup_t {
34			SETUP_KEYGEN = 1,
35			SETUP_IMPORT = 2,
36			SETUP_EXISTING = 3
37			};
38
39			enum gpg_cmd_t {
40			GPG_CMD_DECRYPT = 0,
41			GPG_CMD_SIGN = 1
42			};
43
44			enum keycache_t {
45			KEYCACHE_PRV = 0,
46			KEYCACHE_PUB = 1
47			};
48
49			enum entry_t {
50			ENTRY_OPAQUE = 1,
51			ENTRY_SINGLE = 2,
52			ENTRY_MULTI = 3,
53			ENTRY_GROUP = 4,
54			};
55
56			struct gpg_card_s;
57			typedef struct gpg_card_s * gpg_card_t;
58
59			/* GPG file association context. */
60			struct gpg_filetype {
61			const char *descr;
62			const char *ext;
63			int nicon;
64			};
65
66			/* Keycache refresh context. */
67			struct refresh_cache_s {
68			int kr_reload;
69			int kr_update;
70			int tr_update;
71			};
72
73			struct gpg_option_s {
74			struct gpg_option_s * next;
75			char * name;
76			char * val;
77			unsigned int used:1;
78			int type;
79			};
80			typedef struct gpg_option_s * gpg_option_t;
81
82			struct gpg_member_s {
83			struct gpg_member_s * next;
84			char * name;
85			unsigned int used:1;
86			};
87			typedef struct gpg_member_s * gpg_member_t;
88
89			struct gpg_group_s {
90			struct gpg_group_s * next;
91			struct gpg_member_s * list;
92			char * name;
93			unsigned int used:1;
94			};
95			typedef struct gpg_group_s * gpg_group_t;
96
97			struct gpg_optfile_s {
98			struct gpg_option_s * list;
99			struct gpg_group_s * grp;
100			};
101			typedef struct gpg_optfile_s * gpg_optfile_t;
102
103			static gpg_filetype gpg_filetypes[] = {
104			{"GPG Detached Signature", ".sig", 1},
105			{"GPG Encrypted Data", ".gpg", 2},
106			{"GPG Armored Data", ".asc", 2},
107			{0}
108			};
109
110			struct passphrase_cb_s {
111			int gpg_cmd; /* sign or decrypt. */
112			int pwd_init; /* 1 = passphrase request via dialog. */
113			char pwd; / actual passphrase. */
114			char info[1024]; /* hold up the info message */
115			char title; / dialog title. */
116			char keyid[16+1]; /* keyid of the secret key the pwd can be used for. */
117			HWND hwnd; /* handle of the dialog window. */
118			int cancel; /* 1 = user cancelled passphrase request. */
119			unsigned int is_card:1; /* 1 = key stored on a smart card. */
120			unsigned int bad_pwd:1; /* 1 = last passphrase was bad. */
121			gpgme_ctx_t gpg;
122			gpgme_recipient_t recipients;
123			struct {
124			int sym_algo;
125			int s2k_mode;
126			int s2k_hash;
127			} sym;
128			};
129
130
131			static const char * gpg_sigstat[] = {
132			_("Error during verification process."),
133			_("The signature is good."),
134			_("The signature is BAD!"),
135			_("The signature could not be checked due to a missing key."),
136			_("No valid OpenPGP signature."),
137			_("Signature Error"),
138			_("Good Signature (Expired Key)"),
139			_("Good Signature (Revoked Key)"),
140			NULL
141			};
142
143			int sigsum_to_index (gpgme_sigsum_t sum);
144			#define SIGSTAT_MASK 8
145			#define get_gpg_sigstat(sum) gpg_sigstat[sigsum_to_index ((sum)) % SIGSTAT_MASK]
146
147			/* This variable is 1 if IDEA is available. */
148			extern int idea_available;
149
150			/-- wptGPG.cpp --/
151			char* get_gnupg_default_key( void );
152			int set_gnupg_default_key( const char *key );
153			char* get_gnupg_config (void);
154			char* get_gnupg_keyring_from_options( const char *fname, int pub );
155			int check_gnupg_config (const char fname, int secrings, int *pubrings);
156			char* get_gnupg_path( void );
157			int check_gnupg_prog( void );
158			int gnupg_access_files (void);
159			char* get_gnupg_prog( void );
160			char* get_gnupg_keyring (int pub, int strict);
161			char* get_gnupg_cfgfile (void);
162			int set_gnupg_options( const char *buf, size_t buflen );
163	twoaday	39	int gnupg_load_config (void);
164	werner	37
165			int check_gnupg_options (const char *buf);
166			void init_gnupg_table (void);
167			void free_gnupg_table (void);
168			int keyring_check_last_access (void);
169			const char* gnupg_check_file_ext (const char fname, int r_type);
170			int gpg_check_permissions (int showmsg);
171			int gnupg_check_homedir (void);
172			int gnupg_access_keyring (int _pub);
173			void gnupg_backup_options ();
174			void gnupg_backup_keyrings (void);
175			void gnupg_display_error (void);
176			int gnupg_copy_keyrings (void);
177			int check_gnupg_engine (int r_major, int r_minor, int *r_patch);
178
179			/-- wptGPGME.cpp --/
180			const char * get_signature_status( gpgme_sigsum_t sigstat );
181			void keycache_reload( HWND dlg );
182
183			int get_pubkey (const char keyid, gpgme_key_t ret_key);
184			int winpt_get_pubkey (const char keyid, struct winpt_key_s k);
185			int get_seckey (const char keyid, gpgme_key_t ret_skey);
186			int winpt_get_seckey (const char keyid, struct winpt_key_s k);
187
188			void keycache_reload( HWND dlg );
189			void keycache_release (int cleanup);
190			gpgme_error_t keycache_update (int is_sec, const char *keyid);
191			gpgme_error_t keycache_init( const char pubring, const char secring );
192			void keycache_set_reload( int yes );
193			int keycache_get_reload( void );
194			gpg_keycache_t keycache_get_ctx( int _pub );
195
196			int count_insecure_elgkeys (void);
197
198			int gpg_encrypt_symmetric (void);
199
200
201			/-- wptGPGParser.cpp --/
202			/* find */
203			gpg_group_t find_group( gpg_optfile_t opt, const char *str );
204			gpg_option_t find_option( gpg_optfile_t opt, const char *str );
205			gpg_member_t find_member( gpg_optfile_t opt, const char grp, const char str );
206			/* delete */
207			int delete_group( gpg_optfile_t opt, const char *str );
208			int delete_member( gpg_optfile_t opt, const char grp, const char str );
209			int delete_option( gpg_optfile_t opt, const char *str );
210			/* add */
211			int modify_entry( gpg_optfile_t opt, int type, const char name, const char val );
212			int add_entry( gpg_optfile_t opt, int type, const char name, const char val );
213			int add_member( gpg_optfile_t opt, const char grp, const char str );
214			int add_group( gpg_optfile_t opt, const char *str );
215			/* high-level */
216			int parse_gpg_options( const char file, gpg_optfile_t r_opt );
217			int commit_gpg_options( const char *file, gpg_optfile_t opt );
218			void release_gpg_options( gpg_optfile_t opt );
219			/* memory */
220			void release_group( gpg_group_t grp );
221
222			/-- wptPassphraseCB.cpp --/
223			enum passdlg_t {
224			PASSDLG_REPEAT = 0,
225			PASSDLG_INIT = 1,
226			PASSDLG_STRICT = 2
227			};
228
229			void set_gpg_passphrase_cb (passphrase_cb_s *cb, gpgme_ctx_t ctx,
230			int cmd, HWND hwnd, const char *title);
231			void release_gpg_passphrase_cb (passphrase_cb_s *cb);
232
233			char * request_passphrase (const char title, int flags, int ret_cancel);
234			char * request_passphrase2 (const char title, int flags, int ret_cancel);
235			const char * passphrase_cb (void opaque, const char desc, void *r_hd);
236			char * get_key_userid (const char *keyid);
237			int check_passwd_quality (const char *pass, int strict);
238
239			/-- wptGPGUtil.cpp --/
240			gpgme_error_t gpg_rebuild_cache (char **r_inf);
241			gpgme_error_t gpg_get_version (char **r_inf);
242			void gpg_set_debug_mode (int val);
243			gpgme_error_t gpg_export_seckey (const char keyid, const char outfile);
244	twoaday	39	gpgme_error_t gpg_manage_ownertrust (char **data, int do_export);
245	werner	37
246			char* generate_revoc_input (int code, const char cmt, const char pass);
247			gpgme_error_t gpg_revoke_key (const char *inp_data,
248			const char *keyid,
249			char **r_revcert);
250			gpgme_error_t gpg_decode_c_string (const char src, char *destp, size_t len);
251			gpgme_error_t gpg_import_key_list (const char fname, char *r_out);
252			gpgme_error_t get_uat_validity (const char keyid, gpgme_validity_t r_valid);
253
254			#endif /* WPT_GPG_H */