g_free(session_key);  if (raw_enc_body)    g_free(raw_enc_body); free_peer_key_out:  if (key_e)    g_free(key_e);  if (key_n)    g_free(key_n); error_out:  return rc;}intipmsg_decrypt_message(const char *peer_addr,const char *message,unsigned char **ret_str,size_t *len){  int rc;  unsigned long this_cap;  unsigned char *hex_skey=NULL;  char *skey=NULL;  unsigned char *signed_message=NULL;  unsigned char *end_message_body_p=NULL;  unsigned char *enc_message=NULL;  unsigned char *hex_sign=NULL;  unsigned long skey_type,akey_type;  unsigned long sign_type;  unsigned char *enc_bin_body=NULL;  unsigned char *peer_key_e=NULL;  unsigned char *peer_key_n=NULL;  unsigned long tmp_cap;  unsigned long new_flags;  char *plain=NULL;  size_t plain_len;  size_t skey_len;  size_t enc_bin_len;    if ( (!message) || (!ret_str) || (!len) )    return -EINVAL;  rc=parse_encoded_message(message,			   &this_cap,			   &hex_skey,			   &enc_message,			   &hex_sign);  if (rc) {    err_out("Can not parse message\n");    goto error_out;  }  /*   * 暗號化に使用した鍵を取得   */  skey_type=get_symkey_part(this_cap);  /* 共通鍵 */  akey_type=get_asymkey_part(this_cap); /* 公開鍵 */  sign_type=get_sign_part(this_cap);  dbg_out("Cap:%x Skey:%x AKey:%x Sign:%x\n",this_cap,skey_type,akey_type,sign_type);  /*   *署名がある場合は署名を検証   */  g_assert(peer_addr); /* udpからの呼出しの場合はかならずいれる  */  if ( (hostinfo_get_ipmsg_crypt_capability() & sign_type) && (hex_sign) ) {    dbg_out("This message is signed by peer.\n");    /*     *相手の公開鍵を取得     */    rc=userdb_get_public_key_by_addr(peer_addr,&tmp_cap,(char **)&peer_key_e,(char **)&peer_key_n);    if (rc)      goto free_parsed_datas;    /* 編集用にコピー  */    signed_message=g_strdup(message);    rc=-ENOMEM;    if (!signed_message)      goto free_parsed_datas;    end_message_body_p=strrchr(signed_message,':');    if (!end_message_body_p) /*  異常データ  */      goto free_parsed_datas;    *end_message_body_p='\0'; /* 本文だけを參照  */    dbg_out("Verify:%s with %s\n",signed_message,hex_sign);    rc=pcrypt_verify_sign(this_cap,sign_type,signed_message, 			  hex_sign,peer_key_e,peer_key_n);    /*  失敗した場合でも, 不要なデータを開放してからぬける  */    if (rc) {      err_out("Verify failed:rc=%d\n",rc);      goto free_parsed_datas;    }    dbg_out("Verify OK\n");  }  /*   *共通鍵をデコード   */  /* FIXME 鍵のバリデーション(RSAが2つ以上設(shè)定されていないか) */  rc=pcrypt_decrypt_message(akey_type,hex_skey,&skey,&skey_len);  if (rc)    goto free_parsed_datas;  dbg_out("Decrypt key len:%d\n",skey_len);  /*   *暗號化された本文のバイナリ化   */  rc=string_hex2bin(enc_message,&enc_bin_len, &enc_bin_body);  if (rc)    goto free_skey;#if 0  print_hex(skey,skey_len);#endif  rc=symcrypt_decrypt_message(skey_type,enc_bin_body,enc_bin_len,			      skey,&plain,&plain_len);  if (rc)    goto free_enc_bin_body;  dbg_out("Decoded:%s len=%d\n",plain,plain_len);  *ret_str=plain;  *len=plain_len;  rc=0; free_enc_bin_body:  if (enc_bin_body)    g_free(enc_bin_body); free_skey:  if (skey)    g_free(skey); free_parsed_datas:  if (hex_skey)    g_free(hex_skey);  if (enc_message)    g_free(enc_message);  if (hex_sign)    g_free(hex_sign);  if (peer_key_e)    g_free(peer_key_e);  if (peer_key_n)    g_free(peer_key_n);  if (signed_message)    g_free(signed_message); error_out:  if (rc != 0) {    new_flags = hostinfo_get_normal_entry_flags();    new_flags &= ~IPMSG_ENCRYPTOPT;  /* 暗號化通信不可能であることを通知する  */    ipmsg_send_gratuitous_ans_entry(udp_con, peer_addr, new_flags);    ipmsg_err_dialog(_("Can not decode message from %s rc = %d"), peer_addr, rc);  }  return rc;}GtkWidget *internal_create_crypt_config_window(void){  int rc;  GtkWidget *configWindow;  GtkWidget *sendHostListChkBtn;  GtkWidget *obtainHostlistChkBtn;  GtkWidget *configRC2Bit40Btn;  GtkWidget *configRC2Bit128Btn;  GtkWidget *configRC2Bit256Btn;  GtkWidget *configBFBit128Btn;  GtkWidget *configBFBit256Btn;  GtkWidget *configRSABit512Btn;  GtkWidget *configRSABit1024Btn;  GtkWidget *configRSABit2048Btn;  GtkWidget *configMD5Btn;  GtkWidget *configSHA1Btn;  GtkWidget *keySelectAlgoCBtn;  GtkWidget *RSAKeyEncryptionCBtn;  GtkWidget *useLockCBtn;  unsigned long state;    configWindow=create_securityConfig ();  g_assert(configWindow);  sendHostListChkBtn=lookup_widget(configWindow,"sendHostListChkBtn");  obtainHostlistChkBtn=lookup_widget(configWindow,"obtainHostlistChkBtn");  configRC2Bit40Btn=lookup_widget(configWindow,"configRC2Bit40Btn");  configRC2Bit128Btn=lookup_widget(configWindow, "configRC2Bit128Btn");  configRC2Bit256Btn=lookup_widget(configWindow, "configRC2Bit256Btn");  configBFBit128Btn=lookup_widget(configWindow, "configBFBit128Btn");  configBFBit256Btn=lookup_widget(configWindow, "configBFBit256Btn");  configRSABit512Btn=lookup_widget(configWindow, "configRSABit512Btn");  configRSABit1024Btn=lookup_widget(configWindow, "configRSABit1024Btn");  configRSABit2048Btn=lookup_widget(configWindow, "configRSABit2048Btn");  configMD5Btn=lookup_widget(configWindow, "configMD5Btn");  configSHA1Btn=lookup_widget(configWindow, "configSHA1Btn");  keySelectAlgoCBtn=lookup_widget(configWindow, "keySelectAlgoCBtn");  RSAKeyEncryptionCBtn=lookup_widget(configWindow, "RSAKeyEncryptionCBtn");  useLockCBtn=lookup_widget(configWindow, "useLockCBtn");  rc=hostinfo_refer_ipmsg_cipher(&state);  if (rc)    return;  /*   *ホストリスト制御   */  if (hostinfo_refer_ipmsg_is_allow_hlist())    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(sendHostListChkBtn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(sendHostListChkBtn),FALSE);  if (hostinfo_refer_ipmsg_is_get_hlist())    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(obtainHostlistChkBtn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(obtainHostlistChkBtn),FALSE);  /*   *暗號選択   */  if (state & IPMSG_RC2_40)    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRC2Bit40Btn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRC2Bit40Btn),FALSE);  if (state & IPMSG_RC2_128)    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRC2Bit128Btn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRC2Bit128Btn),FALSE);  if (state & IPMSG_RC2_256)    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRC2Bit256Btn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRC2Bit256Btn),FALSE);  if (state & IPMSG_BLOWFISH_128)    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configBFBit128Btn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configBFBit128Btn),FALSE);  if (state & IPMSG_BLOWFISH_256)    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configBFBit256Btn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configBFBit256Btn),FALSE);  if (state & IPMSG_RSA_512)    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRSABit512Btn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRSABit512Btn),FALSE);  if (state & IPMSG_RSA_1024)    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRSABit1024Btn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRSABit1024Btn),FALSE);  if (state & IPMSG_RSA_2048)    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRSABit2048Btn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configRSABit2048Btn),FALSE);  if (state & IPMSG_SIGN_MD5)    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configMD5Btn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configMD5Btn),FALSE);  if (state & IPMSG_SIGN_SHA1)    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configSHA1Btn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(configSHA1Btn),FALSE);  if (hostinfo_refer_ipmsg_crypt_policy_is_speed())    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(keySelectAlgoCBtn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(keySelectAlgoCBtn),FALSE);  if (hostinfo_refer_ipmsg_encrypt_public_key())    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(RSAKeyEncryptionCBtn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(RSAKeyEncryptionCBtn),FALSE);  if (hostinfo_refer_ipmsg_use_lock())    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(useLockCBtn),TRUE);  else    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(useLockCBtn),FALSE);  return configWindow;}int apply_crypt_config_window(GtkWindow *configWindow){  int rc;  GtkWidget *sendHostListChkBtn;  GtkWidget *obtainHostlistChkBtn;  GtkWidget *configRC2Bit40Btn;  GtkWidget *configRC2Bit128Btn;  GtkWidget *configRC2Bit256Btn;  GtkWidget *configBFBit128Btn;  GtkWidget *configBFBit256Btn;  GtkWidget *configRSABit512Btn;  GtkWidget *configRSABit1024Btn;  GtkWidget *configRSABit2048Btn;  GtkWidget *configMD5Btn;  GtkWidget *configSHA1Btn;  GtkWidget *keySelectAlgoCBtn;  GtkWidget *RSAKeyEncryptionCBtn;  GtkWidget *useLockCBtn;  unsigned long state;    if (!configWindow)    return -EINVAL;  sendHostListChkBtn=lookup_widget(GTK_WIDGET(configWindow),"sendHostListChkBtn");  obtainHostlistChkBtn=lookup_widget(GTK_WIDGET(configWindow),"obtainHostlistChkBtn");  configRC2Bit40Btn=lookup_widget(GTK_WIDGET(configWindow),"configRC2Bit40Btn");  configRC2Bit128Btn=lookup_widget(GTK_WIDGET(configWindow), "configRC2Bit128Btn");  configRC2Bit256Btn=lookup_widget(GTK_WIDGET(configWindow), "configRC2Bit256Btn");  configBFBit128Btn=lookup_widget(GTK_WIDGET(configWindow), "configBFBit128Btn");  configBFBit256Btn=lookup_widget(GTK_WIDGET(configWindow), "configBFBit256Btn");  configRSABit512Btn=lookup_widget(GTK_WIDGET(configWindow), "configRSABit512Btn");  configRSABit1024Btn=lookup_widget(GTK_WIDGET(configWindow), "configRSABit1024Btn");  configRSABit2048Btn=lookup_widget(GTK_WIDGET(configWindow), "configRSABit2048Btn");  configMD5Btn=lookup_widget(GTK_WIDGET(configWindow), "configMD5Btn");  configSHA1Btn=lookup_widget(GTK_WIDGET(configWindow), "configSHA1Btn");  keySelectAlgoCBtn=lookup_widget(GTK_WIDGET(configWindow), "keySelectAlgoCBtn");  RSAKeyEncryptionCBtn=lookup_widget(GTK_WIDGET(configWindow), "RSAKeyEncryptionCBtn");  useLockCBtn=lookup_widget(GTK_WIDGET(configWindow), "useLockCBtn");  /*   *ホストリスト制御   */  hostinfo_set_ipmsg_is_allow_hlist(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(sendHostListChkBtn)));   hostinfo_set_ipmsg_is_get_hlist(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(obtainHostlistChkBtn)));  /*   *暗號選択   */  /*   * 共通鍵   */  state=0;  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(configRC2Bit40Btn)))    state |= IPMSG_RC2_40;  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(configRC2Bit128Btn)))    state |= IPMSG_RC2_128;  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(configRC2Bit256Btn)))    state |= IPMSG_RC2_256;  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(configBFBit128Btn)))    state |= IPMSG_BLOWFISH_128;  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(configBFBit256Btn)))    state |= IPMSG_BLOWFISH_256;  /*   * RSA   */  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(configRSABit512Btn)))    state |= IPMSG_RSA_512;  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(configRSABit1024Btn)))    state |= IPMSG_RSA_1024;  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(configRSABit2048Btn)))    state |= IPMSG_RSA_2048;  /*   * 署名   */  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(configMD5Btn)))    state |= IPMSG_SIGN_MD5;  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(configSHA1Btn)))    state |= IPMSG_SIGN_SHA1;  hostinfo_set_ipmsg_cipher(state);  /*   * セキュリティ設(shè)定   */  hostinfo_set_ipmsg_crypt_policy_as_speed(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(keySelectAlgoCBtn)));  hostinfo_set_ipmsg_encrypt_public_key(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(RSAKeyEncryptionCBtn)));  hostinfo_set_ipmsg_use_lock(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(useLockCBtn)));  return 0;}static intenter_password(void){  int rc;  GtkWidget *window=NULL;  gint result;  window=create_passwdWindow();  g_assert(window);    return 0;}