src/types.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 TYPES_H
  20 #define TYPES_H
  21
  22 #include <assuan.h>
  23
  24 #ifdef WITH_TCP
  25 #include <libssh2.h>
  26 #endif
  27
  28 #define N_ARRAY(a)      (sizeof(a)/sizeof(a[0]))
  29
  30 typedef enum {
  31     ASYNC_CMD_NONE,
  32 #ifdef WITH_TCP
  33     ASYNC_CMD_DNS,
  34     ASYNC_CMD_CONNECT,
  35     ASYNC_CMD_HOSTKEY,
  36 #endif
  37     ASYNC_CMD_OPEN,
  38     ASYNC_CMD_OPEN2,
  39     ASYNC_CMD_SAVE,
  40     ASYNC_CMD_SAVE2,
  41 } pwmd_async_cmd_t;
  42
  43 enum {
  44     PINENTRY_OPEN,
  45     PINENTRY_OPEN_FAILED,
  46     PINENTRY_SAVE,
  47     PINENTRY_SAVE_CONFIRM
  48 };
  49
  50 #ifdef WITH_TCP
  51 typedef struct {
  52     char *host;
  53     unsigned port;
  54     char *username;
  55     char *known_hosts;
  56     char *identity;
  57     char *identity_pub;
  58     int fd;
  59     gpg_error_t rc;
  60     ares_channel chan;
  61     int async;
  62     struct hostent *he;
  63     LIBSSH2_SESSION *session;
  64     LIBSSH2_CHANNEL *channel;
  65     int get_only;
  66     char *hostkey;
  67     pwmd_async_cmd_t cmd;
  68 } pwmd_tcp_conn_t;
  69 #endif
  70
  71 enum {
  72     PWMD_V1,
  73     PWMD_V2
  74 };
  75
  76 struct pwm_s {
  77     assuan_context_t ctx;
  78     int version;
  79 #ifdef WITH_TCP
  80     pwmd_tcp_conn_t *tcp_conn;
  81     pwmd_ip_version_t prot;
  82 #endif
  83     int fd;
  84     pwmd_async_t state;
  85     pwmd_async_cmd_t cmd;
  86     char *result;       // not related to anything the client can see.
  87 #ifdef WITH_PINENTRY
  88     pid_t pid;          // for pinentry timeouts when used with ..async2().
  89     assuan_context_t pctx;
  90     int nb_fd;          // for pwmd_open/save_async2().
  91     pid_t nb_pid;
  92 #endif
  93     int pinentry_tries;
  94     int pin_try;
  95     char *pinentry_path;
  96     char *pinentry_tty;
  97     char *pinentry_term;
  98     char *pinentry_display;
  99     char *lcctype;
 100     char *lcmessages;
 101     char *title;
 102     char *prompt;
 103     char *desc;
 104     char *password;
 105     char *filename;
 106     int pinentry_timeout;
 107     pwmd_passphrase_cb_t passfunc;
 108     void *passdata;
 109     pwmd_status_cb_t status_func;
 110     void *status_data;
 111     pwmd_inquire_cb_t inquire_func;
 112     void *inquire_data;
 113     char *name;
 114 };
 115
 116 typedef struct {
 117     size_t len;
 118     void *buf;
 119 } membuf_t;
 120
 121 typedef struct {
 122     int fd;
 123     gpg_error_t error;
 124     char password[ASSUAN_LINELENGTH+1];
 125 } pwmd_nb_status_t;
 126
 127 static gpg_error_t assuan_command(pwm_t *pwm, assuan_context_t ctx,
 128         char **result, const char *cmd);
 129 static gpg_error_t do_open_command(pwm_t *pwm, const char *filename, char *password);
 130 static gpg_error_t do_save_command(pwm_t *pwm, char *password);
 131 static gpg_error_t send_pinentry_options(pwm_t *pwm);
 132 static char *expand_homedir(char *str, struct passwd *pw);
 133 static gpg_error_t _pwmd_process(pwm_t *pwm);
 134
 135 #ifdef WITH_PINENTRY
 136 static pwm_t *gpwm;
 137 static int gelapsed, gtimeout;
 138 static gpg_error_t gerror;
 139 static gpg_error_t pinentry_command(pwm_t *pwm, char **result, const char *cmd);
 140 #endif
 141 #ifdef WITH_TCP
 142 static void free_tcp_conn(pwmd_tcp_conn_t *conn);
 143 #endif
 144
 145 #endif