src/common.h

   1 /* vim:tw=78:ts=8:sw=4:set ft=c:  */
   2 /*
   3     Copyright (C) 2006-2009 Ben Kibbey <bjk@luxsci.net>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02110-1301  USA
  18 */
  19 #ifndef COMMON_H
  20 #define COMMON_H
  21
  22 #include <sys/types.h>
  23 #include <sys/stat.h>
  24 #include <pth.h>
  25 #include <gcrypt.h>
  26
  27 #define _ASSUAN_ONLY_GPG_ERRORS 1
  28 #include <assuan.h>
  29
  30 #ifdef ENABLE_NLS
  31 #ifdef HAVE_LOCALE_H
  32 #include <locale.h>
  33 #endif
  34 #endif
  35
  36 #include "gettext.h"
  37 #define N_(msgid)       gettext(msgid)
  38 #include "status.h"
  39
  40 enum {
  41     STATE_CONNECTED,
  42     STATE_OPEN
  43 };
  44
  45 typedef enum {
  46     INQUIRE_INIT,
  47     INQUIRE_BUSY,
  48     INQUIRE_DONE
  49 } inquire_status_t;
  50
  51 typedef enum {
  52     PINENTRY_OPEN,
  53     PINENTRY_SAVE
  54 } pinentry_cmd_t;
  55
  56 #ifdef WITH_PINENTRY
  57 typedef struct {
  58     size_t len;
  59     void *buf;
  60 } membuf_t;
  61
  62 typedef enum {
  63     PINENTRY_NONE,
  64     PINENTRY_INIT,
  65     PINENTRY_PID,
  66     PINENTRY_RUNNING,
  67     PINENTRY_TIMEOUT
  68 } pinentry_status_t;
  69
  70 typedef struct {
  71     gint fd;
  72     gpg_error_t error;
  73     pinentry_status_t status;
  74     union {
  75         gchar key[ASSUAN_LINELENGTH];
  76         pid_t pid;
  77     } what;
  78 } pinentry_key_s;
  79
  80 typedef gpg_error_t (*pinentry_finalize_cb)(assuan_context_t, guchar *, gboolean);
  81
  82 struct pinentry_s {
  83     pth_t tid;
  84     pth_mutex_t status_mutex;
  85     pth_mutex_t cond_mutex;
  86     pth_cond_t cond;
  87     pinentry_cmd_t which;
  88     gchar *filename;
  89     assuan_context_t ctx;
  90     pinentry_finalize_cb cb;
  91     pid_t pid;
  92     pid_t pin_pid;
  93     gint fd;
  94     pinentry_status_t status;
  95     gchar *title;
  96     gchar *desc;
  97     gchar *prompt;
  98     gchar *ttyname;
  99     gchar *ttytype;
 100     gchar *display;
 101     gchar *path;
 102     gchar *lcctype;
 103     gchar *lcmessages;
 104     gint timeout;
 105     gboolean has_lock;
 106     gint enable;
 107     membuf_t data;
 108     int (*inquire_cb)(void *data, const char *line);
 109     void *inquire_data;
 110 };
 111 #endif
 112
 113 typedef struct {
 114     guint64 iter;
 115     guint8 iv[16];      /* FIXME: is this portable? */
 116     guint16 version;
 117     guint64 flags;
 118 } file_header_t;
 119
 120 typedef struct {
 121     guint32 iter;
 122     guint8 iv[16];      /* FIXME: is this portable? */
 123 } file_header_v1_t;
 124
 125 typedef struct {
 126     gboolean v1;
 127     gint fd;
 128     struct stat st;
 129     gpointer doc;
 130     goffset len;
 131
 132     union {
 133         file_header_v1_t fh1;
 134         file_header_t fh2;
 135     };
 136 } file_header_internal_t;
 137
 138 struct client_thread_s {
 139     pth_t tid;
 140     GSList *msg_list;
 141     pth_mutex_t msg_list_mutex;
 142     pth_t msg_tid;
 143     pth_cond_t msg_cond;
 144     gint fd;
 145     struct client_s *cl;
 146 #ifdef WITH_GNUTLS
 147     gboolean remote;
 148     struct tls_s *tls;
 149 #endif
 150 };
 151
 152 struct status_msg_s {
 153     struct client_thread_s *thd;
 154     status_msg_t msg;
 155 };
 156
 157 struct client_crypto_s {
 158     gpointer iv;
 159     gpointer key;
 160     gpointer tkey;
 161     gpointer tkey2;
 162     gpointer inbuf;
 163     goffset insize;
 164     gpointer outbuf;
 165     goffset outsize;
 166     file_header_internal_t *fh;
 167     gcry_cipher_hd_t gh;
 168 };
 169
 170 struct client_s {
 171     assuan_context_t ctx;
 172 #ifdef WITH_PINENTRY
 173     struct pinentry_s *pinentry;
 174 #endif
 175     gpointer doc; /* xmlDocPtr */
 176     gpointer xml_error;
 177     gpointer xml;
 178     gint len;
 179     gint state;
 180     gchar *filename;
 181     guchar md5file[16];
 182     gboolean new;
 183     gboolean freed;
 184     time_t mtime;
 185     gboolean has_lock;
 186     gboolean is_lock_cmd;
 187     inquire_status_t inquire_status;
 188     struct client_thread_s *thd;
 189     struct client_crypto_s *crypto;
 190     status_msg_t msg; /* the current message being sent. */
 191 };
 192
 193 gsize gcrykeysize, gcryblocksize;
 194 GKeyFile *keyfileh;
 195 gboolean log_syslog;
 196 gint zlib_bufsize;
 197 pth_mutex_t rcfile_mutex;
 198 pth_mutex_t cn_mutex;
 199 GSList *cn_thread_list;
 200
 201 void log_write(const gchar *fmt, ...);
 202 gpg_error_t send_error(assuan_context_t ctx, gpg_error_t pwmd_errno);
 203 gpg_error_t send_syserror(assuan_context_t ctx, int e);
 204 gint open_file(const gchar *filename, struct stat *st);
 205 gpg_error_t do_xml_encrypt(struct client_s *client, struct client_crypto_s *,
 206         const gchar *filename);
 207 gint get_key_file_integer(const gchar *section, const gchar *what);
 208 gboolean get_key_file_boolean(const gchar *section, const gchar *what);
 209 gchar *get_key_file_string(const gchar *section, const gchar *what);
 210 gchar *expand_homedir(gchar *str);
 211 void free_client(struct client_s *client);
 212 void cleanup_crypto(struct client_crypto_s **);
 213 struct client_crypto_s *init_client_crypto();
 214
 215 #endif