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Code Issues Releases Wiki Activity

smartcard: added more messages

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ulab-next
Laxmikant Rashinkar 11 years ago
parent cff17f3038
commit db71bc5d8b
2 changed files with 283 additions and 0 deletions
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255
sesman/chansrv/smartcard.c
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@ -32,6 +32,8 @@
/*
* TODO
*
* o ensure that all wide calls are handled correctly
*
* o need to query client for build number and determine whether we should use
* SCREDIR_VERSION_XP or SCREDIR_VERSION_LONGHORN
*
@ -161,6 +163,7 @@ static int APP_CC scard_get_free_slot(void);
static void APP_CC scard_release_resources(void);
static void APP_CC scard_send_EstablishContext(IRP* irp, int scope);
static void APP_CC scard_send_ReleaseContext(IRP* irp, tui32 context);
static void APP_CC scard_send_IsContextValid(IRP* irp, tui32 context);
static void APP_CC scard_send_ListReaders(IRP* irp, tui32 context, int wide);
static void APP_CC scard_send_GetStatusChange(IRP* irp, tui32 context, int wide,
@ -170,6 +173,9 @@ static void APP_CC scard_send_GetStatusChange(IRP* irp, tui32 context, int wide,
static void APP_CC scard_send_Connect(IRP* irp, tui32 context, int wide,
READER_STATE* rs);
static void APP_CC scard_send_Reconnect(IRP* irp, tui32 context,
tui32 sc_handle, READER_STATE* rs);
static void APP_CC scard_send_BeginTransaction(IRP* irp, tui32 sc_handle);
static void APP_CC scard_send_EndTransaction(IRP* irp, tui32 sc_handle);
static void APP_CC scard_send_Status(IRP* irp, int wide, tui32 sc_handle);
@ -188,6 +194,11 @@ static void APP_CC scard_handle_ReleaseContext_Return(struct stream *s, IRP *irp
tui32 DeviceId, tui32 CompletionId,
tui32 IoStatus);
static void APP_CC scard_handle_IsContextValid_Return(struct stream *s, IRP *irp,
tui32 DeviceId, tui32 CompletionId,
tui32 IoStatus);
static void APP_CC scard_handle_ListReaders_Return(struct stream *s, IRP *irp,
tui32 DeviceId, tui32 CompletionId,
tui32 IoStatus);
@ -200,6 +211,10 @@ static void APP_CC scard_handle_Connect_Return(struct stream *s, IRP *irp,
tui32 DeviceId, tui32 CompletionId,
tui32 IoStatus);
static void APP_CC scard_handle_Reconnect_Return(struct stream *s, IRP *irp,
tui32 DeviceId, tui32 CompletionId,
tui32 IoStatus);
static void APP_CC scard_handle_BeginTransaction_Return(struct stream *s, IRP *irp,
tui32 DeviceId, tui32 CompletionId,
tui32 IoStatus);
@ -335,6 +350,33 @@ scard_send_release_context(struct trans *con, tui32 context)
return 0;
}
/**
* Checks if a previously established context is still valid
*****************************************************************************/
int APP_CC
scard_send_is_valid_context(struct trans *con, tui32 context)
{
IRP *irp;
/* setup up IRP */
if ((irp = devredir_irp_new()) == NULL)
{
log_error("system out of memory");
return 1;
}
irp->scard_index = g_scard_index;
irp->CompletionId = g_completion_id++;
irp->DeviceId = g_device_id;
irp->callback = scard_handle_IsContextValid_Return;
irp->user_data = con;
/* send IRP to client */
scard_send_IsContextValid(irp, context);
return 0;
}
/**
*
*****************************************************************************/
@ -427,6 +469,42 @@ scard_send_connect(struct trans *con, tui32 context, int wide,
return 0;
}
/**
* The reconnect method re-establishes a smart card reader handle. On success,
* the handle is valid once again.
*
* @param con connection to client
* @param sc_handle handle to device
* @param rs reader state where following fields are set
* rs.shared_mode_flag
* rs.preferred_protocol
* rs.init_type
*****************************************************************************/
int APP_CC
scard_send_reconnect(struct trans *con, tui32 context, tui32 sc_handle,
READER_STATE* rs)
{
IRP *irp;
/* setup up IRP */
if ((irp = devredir_irp_new()) == NULL)
{
log_error("system out of memory");
return 1;
}
irp->scard_index = g_scard_index;
irp->CompletionId = g_completion_id++;
irp->DeviceId = g_device_id;
irp->callback = scard_handle_Reconnect_Return;
irp->user_data = con;
/* send IRP to client */
scard_send_Reconnect(irp, context, sc_handle, rs);
return 0;
}
/**
* Lock smart card reader for exclusive access for specified smart
* card reader handle.
@ -768,6 +846,56 @@ scard_send_ReleaseContext(IRP* irp, tui32 context)
xstream_free(s);
}
/**
* Checks if a previously established context is still valid
*****************************************************************************/
static void APP_CC
scard_send_IsContextValid(IRP* irp, tui32 context)
{
/* see [MS-RDPESC] 3.1.4.3 */
SMARTCARD* sc;
struct stream* s;
int bytes;
if ((sc = smartcards[irp->scard_index]) == NULL)
{
log_error("smartcards[%d] is NULL", irp->scard_index);
return;
}
if ((s = scard_make_new_ioctl(irp, SCARD_IOCTL_IS_VALID_CONTEXT)) == NULL)
return;
/*
* command format
*
* ......
* 20 bytes padding
* u32 4 bytes len 8, LE, v1
* u32 4 bytes filler
* 16 bytes unused (s->p currently pointed here at unused[0])
* u32 4 bytes context len
* u32 4 bytes context
*/
xstream_wr_u32_le(s, 16);
/* insert context */
xstream_wr_u32_le(s, 4);
xstream_wr_u32_le(s, context);
/* get stream len */
bytes = xstream_len(s);
/* InputBufferLength is number of bytes AFTER 20 byte padding */
*(s->data + 28) = bytes - 56;
/* send to client */
send_channel_data(g_rdpdr_chan_id, s->data, bytes);
xstream_free(s);
}
/**
*
*****************************************************************************/
@ -1066,6 +1194,73 @@ scard_send_Connect(IRP* irp, tui32 context, int wide, READER_STATE* rs)
xstream_free(s);
}
/**
* The reconnect method re-establishes a smart card reader handle. On success,
* the handle is valid once again.
*
* @param con connection to client
* @param sc_handle handle to device
* @param rs reader state where following fields are set
* rs.shared_mode_flag
* rs.preferred_protocol
* rs.init_type
*****************************************************************************/
static void APP_CC
scard_send_Reconnect(IRP* irp, tui32 context, tui32 sc_handle, READER_STATE* rs)
{
/* see [MS-RDPESC] 2.2.2.15 */
/* see [MS-RDPESC] 3.1.4.36 */
SMARTCARD* sc;
struct stream* s;
int bytes;
if ((sc = smartcards[irp->scard_index]) == NULL)
{
log_error("smartcards[%d] is NULL", irp->scard_index);
return;
}
if ((s = scard_make_new_ioctl(irp, SCARD_IOCTL_RECONNECT)) == NULL)
return;
/*
* command format
*
* ......
* 20 bytes padding
* u32 4 bytes len 8, LE, v1
* u32 4 bytes filler
* 24 bytes unused (s->p currently pointed here at unused[0])
* u32 4 bytes dwShareMode
* u32 4 bytes dwPreferredProtocol
* u32 4 bytes dwInitialization
* u32 4 bytes context length
* u32 4 bytes context
* u32 4 bytes handle length
* u32 4 bytes handle
*/
xstream_seek(s, 24);
xstream_wr_u32_le(s, rs->shared_mode_flag);
xstream_wr_u32_le(s, rs->preferred_protocol);
xstream_wr_u32_le(s, rs->init_type);
xstream_wr_u32_le(s, 4);
xstream_wr_u32_le(s, context);
xstream_wr_u32_le(s, 4);
xstream_wr_u32_le(s, sc_handle);
/* get stream len */
bytes = xstream_len(s);
/* InputBufferLength is number of bytes AFTER 20 byte padding */
*(s->data + 28) = bytes - 56;
/* send to client */
send_channel_data(g_rdpdr_chan_id, s->data, bytes);
xstream_free(s);
}
/**
* Lock smart card reader for exclusive access for specified smart
* card reader handle.
@ -1374,6 +1569,34 @@ scard_handle_ReleaseContext_Return(struct stream *s, IRP *irp,
log_debug("leaving");
}
static void APP_CC scard_handle_IsContextValid_Return(struct stream *s, IRP *irp,
tui32 DeviceId, tui32 CompletionId,
tui32 IoStatus)
{
tui32 len;
log_debug("entered");
/* sanity check */
if ((DeviceId != irp->DeviceId) || (CompletionId != irp->CompletionId))
{
log_error("DeviceId/CompletionId do not match those in IRP");
return;
}
if (IoStatus != 0)
{
log_error("Error checking context validity");
/* LK_TODO delete irp and smartcard entry */
return;
}
/* get OutputBufferLen */
xstream_rd_u32_le(s, len);
log_debug("leaving");
}
/**
*
*****************************************************************************/
@ -1470,6 +1693,38 @@ scard_handle_Connect_Return(struct stream *s, IRP *irp,
log_debug("leaving");
}
/**
*
*****************************************************************************/
static void APP_CC
scard_handle_Reconnect_Return(struct stream *s, IRP *irp,
tui32 DeviceId, tui32 CompletionId,
tui32 IoStatus)
{
tui32 len;
log_debug("entered");
/* sanity check */
if ((DeviceId != irp->DeviceId) || (CompletionId != irp->CompletionId))
{
log_error("DeviceId/CompletionId do not match those in IRP");
return;
}
if (IoStatus != 0)
{
log_error("failed to reconnect");
/* LK_TODO delete irp and smartcard entry */
return;
}
/* get OutputBufferLen */
xstream_rd_u32_le(s, len);
log_debug("leaving");
}
/**
*
*****************************************************************************/

28
sesman/chansrv/smartcard.h
Unescape View File

@ -43,6 +43,11 @@
#define SCARD_PROTOCOL_DEFAULT 0x80000000
#define SCARD_PROTOCOL_OPTIMAL 0x00000000
/* initialization type */
#define SCARD_LEAVE_CARD 0x00000000 /* do not do anything */
#define SCARD_RESET_CARD 0x00000001 /* reset smart card */
#define SCARD_UNPOWER_CARD 0x00000002 /* turn off and reset card */
typedef struct reader_state
{
char reader_name[128];
@ -66,6 +71,12 @@ typedef struct reader_state
*/
tui32 preferred_protocol;
/*
* initialization type, must be one of the initialization type
* defined above
*/
tui32 init_type;
} READER_STATE;
void scard_device_announce(tui32 device_id);
@ -75,15 +86,32 @@ int APP_CC scard_init(void);
int APP_CC scard_deinit(void);
int APP_CC scard_send_establish_context(struct trans *con, int scope);
int APP_CC scard_send_release_context(struct trans *con, tui32 context);
int APP_CC scard_send_is_valid_context(struct trans *con, tui32 context);
int APP_CC scard_send_list_readers(struct trans *con, tui32 context, int wide);
int APP_CC scard_send_get_status_change(struct trans *con, tui32 context,
int wide, tui32 timeout,
tui32 num_readers, READER_STATE* rsa);
int APP_CC scard_send_connect(struct trans *con, tui32 context, int wide,
READER_STATE* rs);
int APP_CC scard_send_reconnect(struct trans *con, tui32 context,
tui32 sc_handle, READER_STATE* rs);
int APP_CC scard_send_begin_transaction(struct trans *con, tui32 sc_handle);
int APP_CC scard_send_end_transaction(struct trans *con, tui32 sc_handle);
int APP_CC scard_send_status(struct trans *con, int wide, tui32 sc_handle);
int APP_CC scard_send_disconnect(struct trans *con, tui32 context, tui32 sc_handle);
/*
SCardReconnect
SCardTransmit
SCardControl
SCardListReaderGroups
not needed: SCardFreeMemory
SCardCancel
SCardGetAttrib
SCardSetAttrib
*/
#endif /* end #ifndef _SMARTCARD_C */

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