625 lines
17 KiB
C
625 lines
17 KiB
C
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2013 jay.sorg@gmail.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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/*
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* smartcard redirection support, PCSC daemon standin
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* this will act like pcsc daemon
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* pcsc lib and daemon write struct on unix domain socket for communication
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*/
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#define PCSC_STANDIN 1
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#include "os_calls.h"
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#include "smartcard.h"
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#include "log.h"
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#include "irp.h"
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#include "devredir.h"
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#include "trans.h"
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#if PCSC_STANDIN
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#define LLOG_LEVEL 11
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#define LLOGLN(_level, _args) \
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do \
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{ \
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if (_level < LLOG_LEVEL) \
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{ \
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g_write("chansrv:smartcard [%10.10u]: ", g_time3()); \
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g_writeln _args ; \
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} \
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} \
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while (0)
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/* using pcsc-lite-1.7.4 */
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struct establish_struct
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{
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tui32 dwScope;
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tui32 hContext;
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tui32 rv;
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};
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struct release_struct
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{
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tui32 hContext;
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tui32 rv;
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};
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/** Major version of the current message protocol */
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#define PROTOCOL_VERSION_MAJOR 4
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/** Minor version of the current message protocol */
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#define PROTOCOL_VERSION_MINOR 2
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struct version_struct
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{
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tsi32 major; /**< IPC major \ref PROTOCOL_VERSION_MAJOR */
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tsi32 minor; /**< IPC minor \ref PROTOCOL_VERSION_MINOR */
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tui32 rv;
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};
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#define SCARD_S_SUCCESS 0x00000000 /**< No error was encountered. */
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#define SCARD_F_INTERNAL_ERROR 0x80100001 /**< An internal consistency
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* check failed. */
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#define SCARD_E_TIMEOUT 0x8010000A /**< The user-specified timeout
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* value has expired. */
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#define MAX_READERNAME 100
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#define MAX_ATR_SIZE 33
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struct pubReaderStatesList
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{
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char readerName[MAX_READERNAME]; /**< reader name */
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tui32 eventCounter; /**< number of card events */
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tui32 readerState; /**< SCARD_* bit field */
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tsi32 readerSharing; /**< PCSCLITE_SHARING_* sharing status */
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tui8 cardAtr[MAX_ATR_SIZE]; /**< ATR */
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tui32 cardAtrLength; /**< ATR length */
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tui32 cardProtocol; /**< SCARD_PROTOCOL_* value */
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};
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#define PCSCLITE_MAX_READERS_CONTEXTS 16
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static struct pubReaderStatesList
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g_reader_states[PCSCLITE_MAX_READERS_CONTEXTS];
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struct wait_reader_state_change
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{
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tui32 timeOut; /**< timeout in ms */
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tui32 rv;
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};
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#define XRDP_PCSC_STATE_NONE 0
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#define XRDP_PCSC_STATE_GOT_RSC 1
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static int g_xrdp_pcsc_state = XRDP_PCSC_STATE_NONE;
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extern int g_display_num; /* in chansrv.c */
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/*****************************************************************************/
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struct pcsc_client
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{
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struct trans *con;
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};
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static struct pcsc_client *g_head = 0;
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static struct pcsc_client *g_tail = 0;
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static struct trans *g_lis = 0;
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static struct trans *g_con = 0; /* todo, remove this */
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static char g_pcsclite_ipc_dir[256] = "";
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static int g_pub_file_fd = 0;
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static char g_pub_file_name[256] = "";
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/*****************************************************************************/
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int APP_CC
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scard_pcsc_get_wait_objs(tbus *objs, int *count, int *timeout)
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{
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LLOGLN(0, ("scard_pcsc_get_wait_objs"));
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if (g_lis != 0)
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{
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trans_get_wait_objs(g_lis, objs, count);
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}
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if (g_con != 0)
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{
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trans_get_wait_objs(g_con, objs, count);
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}
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return 0;
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}
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/*****************************************************************************/
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int APP_CC
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scard_pcsc_check_wait_objs(void)
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{
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LLOGLN(0, ("scard_pcsc_check_wait_objs"));
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if (g_lis != 0)
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{
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trans_check_wait_objs(g_lis);
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}
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if (g_con != 0)
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{
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trans_check_wait_objs(g_con);
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}
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return 0;
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}
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/*****************************************************************************/
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/* returns error */
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int APP_CC
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scard_process_establish_context(struct trans *con, struct stream *in_s)
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{
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struct establish_struct in_es;
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LLOGLN(0, ("scard_process_establish_context:"));
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in_uint8a(in_s, &in_es, sizeof(in_es));
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LLOGLN(0, ("scard_process_establish_context: dwScope 0x%8.8x",
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in_es.dwScope));
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scard_send_irp_establish_context(con, in_es.dwScope);
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return 0;
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}
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/*****************************************************************************/
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/* returns error */
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int APP_CC
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scard_function_establish_context_return(struct trans *con, int context)
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{
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struct establish_struct out_es;
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struct stream *out_s;
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LLOGLN(0, ("scard_function_establish_context_return: context %d",
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context));
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out_es.dwScope = 0;
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out_es.hContext = context;
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out_es.rv = SCARD_S_SUCCESS;
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out_s = trans_get_out_s(con, 8192);
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out_uint8a(out_s, &out_es, sizeof(out_es));
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s_mark_end(out_s);
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return trans_force_write(con);
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}
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/*****************************************************************************/
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/* returns error */
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int APP_CC
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scard_process_release_context(struct stream *in_s)
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{
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struct release_struct in_rs;
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struct release_struct out_rs;
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struct stream *out_s;
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LLOGLN(0, ("scard_process_release_context:"));
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in_uint8a(in_s, &in_rs, sizeof(in_rs));
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LLOGLN(0, ("scard_process_release_context: hContext %d", in_rs.hContext));
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out_rs.hContext = in_rs.hContext;
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out_rs.rv = SCARD_S_SUCCESS;
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out_s = trans_get_out_s(g_con, 8192);
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out_uint8a(out_s, &out_rs, sizeof(out_rs));
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s_mark_end(out_s);
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return trans_force_write(g_con);
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}
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/*****************************************************************************/
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/* returns error */
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int APP_CC
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scard_process_version(struct trans *con, struct stream *in_s)
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{
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struct stream *out_s;
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struct version_struct in_version;
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struct version_struct out_version;
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LLOGLN(0, ("scard_process_version:"));
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in_uint8a(in_s, &in_version, sizeof(in_version));
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/* todo: check if version is compatible */
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LLOGLN(0, ("scard_process_version: version major %d minor %d",
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in_version.major, in_version.minor));
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out_s = trans_get_out_s(con, 8192);
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out_version.major = PROTOCOL_VERSION_MAJOR;
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out_version.minor = PROTOCOL_VERSION_MINOR;
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out_version.rv = SCARD_S_SUCCESS;
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out_uint8a(out_s, &out_version, sizeof(out_version));
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s_mark_end(out_s);
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return trans_force_write(con);
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}
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/*****************************************************************************/
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/* returns error */
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int APP_CC
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scard_process_get_readers_state(struct stream *in_s)
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{
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LLOGLN(0, ("scard_process_get_readers_state:"));
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scard_send_irp_list_readers(g_con);
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return 0;
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}
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/*****************************************************************************/
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/* returns error */
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int APP_CC
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scard_function_list_readers_return(struct trans *con,
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struct stream *in_s,
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int len)
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{
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struct stream *out_s;
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g_hexdump(in_s->p, len);
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g_strcpy(g_reader_states[0].readerName, "ACS AET65 00 00");
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g_reader_states[0].readerState = 0x14;
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g_reader_states[0].cardProtocol = 3;
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g_reader_states[0].cardAtrLength = 10;
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g_reader_states[0].cardAtr[0] = 0x3B;
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g_reader_states[0].cardAtr[1] = 0x95;
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g_reader_states[0].cardAtr[2] = 0x95;
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g_reader_states[0].cardAtr[3] = 0x40;
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g_reader_states[0].cardAtr[4] = 0xFF;
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g_reader_states[0].cardAtr[5] = 0xD0;
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g_reader_states[0].cardAtr[6] = 0x00;
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g_reader_states[0].cardAtr[7] = 0x54;
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g_reader_states[0].cardAtr[8] = 0x01;
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g_reader_states[0].cardAtr[9] = 0x32;
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//g_reader_states[0].eventCounter++;
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out_s = trans_get_out_s(con, 8192);
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out_uint8a(out_s, g_reader_states, sizeof(g_reader_states));
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s_mark_end(out_s);
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return trans_force_write(con);
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}
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/*****************************************************************************/
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/* callback from chansrv when timeout occurs */
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void DEFAULT_CC
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scard_read_state_chage_timeout(void* data)
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{
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struct trans *con;
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struct stream *out_s;
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struct wait_reader_state_change out_rsc;
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LLOGLN(0, ("scard_read_state_chage_timeout:"));
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con = (struct trans *) data;
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if (g_xrdp_pcsc_state & XRDP_PCSC_STATE_GOT_RSC)
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{
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out_s = trans_get_out_s(con, 8192);
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out_rsc.timeOut = 0;
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out_rsc.rv = SCARD_S_SUCCESS;
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out_uint8a(out_s, &out_rsc, sizeof(out_rsc));
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g_xrdp_pcsc_state &= ~XRDP_PCSC_STATE_GOT_RSC;
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s_mark_end(out_s);
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trans_force_write(con);
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}
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else
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{
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LLOGLN(0, ("scard_read_state_chage_timeout: already stopped"));
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}
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}
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/*****************************************************************************/
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/* returns error */
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int APP_CC
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scard_process_read_state_change(struct trans *con, struct stream *in_s)
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{
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struct wait_reader_state_change in_rsc;
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struct stream *out_s;
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LLOGLN(0, ("scard_process_read_state_change:"));
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in_uint8a(in_s, &in_rsc, sizeof(in_rsc));
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g_xrdp_pcsc_state |= XRDP_PCSC_STATE_GOT_RSC;
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LLOGLN(0, ("scard_process_read_state_change: timeout %d rv %d",
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in_rsc.timeOut, in_rsc.rv));
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add_timeout(in_rsc.timeOut, scard_read_state_chage_timeout, con);
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return 0;
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}
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/*****************************************************************************/
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/* returns error */
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int APP_CC
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scard_process_stop_read_state_change(struct stream *in_s)
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{
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struct wait_reader_state_change in_rsc;
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struct wait_reader_state_change out_rsc;
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struct stream *out_s;
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LLOGLN(0, ("scard_process_stop_read_state_change:"));
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in_uint8a(in_s, &in_rsc, sizeof(in_rsc));
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LLOGLN(0, ("scard_process_stop_read_state_change: timeout %d rv %d",
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in_rsc.timeOut, in_rsc.rv));
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if (g_xrdp_pcsc_state & XRDP_PCSC_STATE_GOT_RSC)
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{
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out_s = trans_get_out_s(g_con, 8192);
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out_rsc.timeOut = in_rsc.timeOut;
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out_rsc.rv = SCARD_S_SUCCESS;
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out_uint8a(out_s, &out_rsc, sizeof(out_rsc));
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g_xrdp_pcsc_state &= ~XRDP_PCSC_STATE_GOT_RSC;
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s_mark_end(out_s);
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return trans_force_write(g_con);
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}
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else
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{
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LLOGLN(0, ("scard_process_stop_read_state_change: already stopped"));
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}
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return 0;
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}
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/*****************************************************************************/
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/* returns error */
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int APP_CC
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scard_process_msg(struct trans *con, struct stream *in_s, int command)
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{
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int rv;
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LLOGLN(0, ("scard_process_msg: command 0x%4.4x", command));
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rv = 0;
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switch (command)
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{
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case 0x01: /* SCARD_ESTABLISH_CONTEXT */
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LLOGLN(0, ("scard_process_msg: SCARD_ESTABLISH_CONTEXT"));
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rv = scard_process_establish_context(con, in_s);
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break;
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case 0x02: /* SCARD_RELEASE_CONTEXT */
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LLOGLN(0, ("scard_process_msg: SCARD_RELEASE_CONTEXT"));
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rv = scard_process_release_context(in_s);
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break;
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case 0x03: /* SCARD_LIST_READERS */
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LLOGLN(0, ("scard_process_msg: SCARD_LIST_READERS"));
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break;
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case 0x04: /* SCARD_CONNECT */
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LLOGLN(0, ("scard_process_msg: SCARD_CONNECT"));
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break;
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case 0x05: /* SCARD_RECONNECT */
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LLOGLN(0, ("scard_process_msg: SCARD_RECONNECT"));
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break;
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case 0x06: /* SCARD_DISCONNECT */
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LLOGLN(0, ("scard_process_msg: SCARD_DISCONNECT"));
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break;
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case 0x07: /* SCARD_BEGIN_TRANSACTION */
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LLOGLN(0, ("scard_process_msg: SCARD_BEGIN_TRANSACTION"));
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break;
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case 0x08: /* SCARD_END_TRANSACTION */
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LLOGLN(0, ("scard_process_msg: SCARD_END_TRANSACTION"));
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break;
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case 0x09: /* SCARD_TRANSMIT */
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LLOGLN(0, ("scard_process_msg: SCARD_TRANSMIT"));
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break;
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case 0x0A: /* SCARD_CONTROL */
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LLOGLN(0, ("scard_process_msg: SCARD_CONTROL"));
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break;
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case 0x0B: /* SCARD_STATUS */
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LLOGLN(0, ("scard_process_msg: SCARD_STATUS"));
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break;
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case 0x0C: /* SCARD_GET_STATUS_CHANGE */
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LLOGLN(0, ("scard_process_msg: SCARD_GET_STATUS_CHANGE"));
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break;
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case 0x0D: /* SCARD_CANCEL */
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LLOGLN(0, ("scard_process_msg: SCARD_CANCEL"));
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break;
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case 0x0E: /* SCARD_CANCEL_TRANSACTION */
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LLOGLN(0, ("scard_process_msg: SCARD_CANCEL_TRANSACTION"));
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break;
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case 0x0F: /* SCARD_GET_ATTRIB */
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LLOGLN(0, ("scard_process_msg: SCARD_GET_ATTRIB"));
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break;
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case 0x10: /* SCARD_SET_ATTRIB */
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LLOGLN(0, ("scard_process_msg: SCARD_SET_ATTRIB"));
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break;
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case 0x11: /* CMD_VERSION */
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LLOGLN(0, ("scard_process_msg: CMD_VERSION"));
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rv = scard_process_version(con, in_s);
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break;
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case 0x12: /* CMD_GET_READERS_STATE */
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LLOGLN(0, ("scard_process_msg: CMD_GET_READERS_STATE"));
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rv = scard_process_get_readers_state(in_s);
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break;
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case 0x13: /* CMD_WAIT_READER_STATE_CHANGE */
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LLOGLN(0, ("scard_process_msg: CMD_WAIT_READER_STATE_CHANGE"));
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rv = scard_process_read_state_change(con, in_s);
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break;
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case 0x14: /* CMD_STOP_WAITING_READER_STATE_CHANGE */
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LLOGLN(0, ("scard_process_msg: CMD_STOP_WAITING_READER_STATE_CHANGE"));
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rv = scard_process_stop_read_state_change(in_s);
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break;
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default:
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LLOGLN(0, ("scard_process_msg: unknown mtype 0x%4.4x", command));
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rv = 1;
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break;
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}
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return rv;
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}
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/*****************************************************************************/
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/* returns error */
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int DEFAULT_CC
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my_pcsc_trans_data_in(struct trans *trans)
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{
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struct stream *s;
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int id;
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int size;
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int command;
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int error;
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LLOGLN(0, ("my_pcsc_trans_data_in:"));
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if (trans == 0)
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{
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return 0;
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}
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if (trans != g_con)
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{
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return 1;
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}
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s = trans_get_in_s(trans);
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in_uint32_le(s, size);
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in_uint32_le(s, command);
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LLOGLN(0, ("my_pcsc_trans_data_in: size %d command %d", size, command));
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error = trans_force_read(trans, size);
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if (error == 0)
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{
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error = scard_process_msg(g_con, s, command);
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}
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return error;
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}
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/*****************************************************************************/
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/* got a new connection from libpcsclite */
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int DEFAULT_CC
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my_pcsc_trans_conn_in(struct trans *trans, struct trans *new_trans)
|
|
{
|
|
LLOGLN(0, ("my_pcsc_trans_conn_in:"));
|
|
|
|
if (trans == 0)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
if (trans != g_lis)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
if (new_trans == 0)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
g_con = new_trans;
|
|
g_con->trans_data_in = my_pcsc_trans_data_in;
|
|
#if 1
|
|
g_con->header_size = 8;
|
|
#else
|
|
g_con->header_size = RXSHAREDSEGMENT_BYTES;
|
|
LLOGLN(0, ("my_pcsc_trans_conn_in: sizeof sharedSegmentMsg is %d",
|
|
sizeof(sharedSegmentMsg)));
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
int APP_CC
|
|
scard_pcsc_init(void)
|
|
{
|
|
char port[256];
|
|
char *home;
|
|
int disp;
|
|
int error;
|
|
int index;
|
|
|
|
LLOGLN(0, ("scard_pcsc_init:"));
|
|
g_memset(g_reader_states, 0, sizeof(g_reader_states));
|
|
if (g_lis == 0)
|
|
{
|
|
g_lis = trans_create(2, 8192, 8192);
|
|
|
|
//g_snprintf(g_pcsclite_ipc_dir, 255, "/tmp/.xrdp/pcsc%d", g_display_num);
|
|
home = g_getenv("HOME");
|
|
disp = g_display_num;
|
|
g_snprintf(g_pcsclite_ipc_dir, 255, "%s/.pcsc%d", home, disp);
|
|
|
|
if (g_directory_exist(g_pcsclite_ipc_dir))
|
|
{
|
|
if (g_remove_dir(g_pcsclite_ipc_dir) != 0)
|
|
{
|
|
LLOGLN(0, ("scard_pcsc_init: g_remove_dir failed"));
|
|
}
|
|
}
|
|
if (!g_create_dir(g_pcsclite_ipc_dir))
|
|
{
|
|
LLOGLN(0, ("scard_pcsc_init: g_create_dir failed"));
|
|
}
|
|
g_chmod_hex(g_pcsclite_ipc_dir, 0x1777);
|
|
g_snprintf(port, 255, "%s/pcscd.comm", g_pcsclite_ipc_dir);
|
|
g_lis->trans_conn_in = my_pcsc_trans_conn_in;
|
|
error = trans_listen(g_lis, port);
|
|
if (error != 0)
|
|
{
|
|
LLOGLN(0, ("scard_pcsc_init: trans_listen failed for port %s",
|
|
port));
|
|
return 1;
|
|
}
|
|
g_snprintf(g_pub_file_name, 255, "%s/pcscd.pub", g_pcsclite_ipc_dir);
|
|
g_pub_file_fd = g_file_open(g_pub_file_name);
|
|
index = 0;
|
|
while (index < 65537)
|
|
{
|
|
g_file_write(g_pub_file_fd, "", 1);
|
|
index++;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
int APP_CC
|
|
scard_pcsc_deinit(void)
|
|
{
|
|
LLOGLN(0, ("scard_pcsc_deinit:"));
|
|
if (g_lis != 0)
|
|
{
|
|
trans_delete(g_lis);
|
|
g_lis = 0;
|
|
|
|
g_file_close(g_pub_file_fd);
|
|
g_pub_file_fd = 0;
|
|
g_file_delete(g_pub_file_name);
|
|
g_pub_file_name[0] = 0;
|
|
|
|
if (g_remove_dir(g_pcsclite_ipc_dir) != 0)
|
|
{
|
|
LLOGLN(0, ("scard_pcsc_deinit: g_remove_dir failed"));
|
|
}
|
|
g_pcsclite_ipc_dir[0] = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
|
|
int APP_CC
|
|
scard_pcsc_get_wait_objs(tbus *objs, int *count, int *timeout)
|
|
{
|
|
return 0;
|
|
}
|
|
int APP_CC
|
|
scard_pcsc_check_wait_objs(void)
|
|
{
|
|
return 0;
|
|
}
|
|
int APP_CC
|
|
scard_pcsc_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
int APP_CC
|
|
scard_pcsc_deinit(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|