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-rw-r--r--sesman/chansrv/smartcard.c255
-rw-r--r--sesman/chansrv/smartcard.h28
2 files changed, 283 insertions, 0 deletions
diff --git a/sesman/chansrv/smartcard.c b/sesman/chansrv/smartcard.c
index 94c08ad4..1a81efea 100644
--- a/sesman/chansrv/smartcard.c
+++ b/sesman/chansrv/smartcard.c
@@ -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);
@@ -336,6 +351,33 @@ scard_send_release_context(struct trans *con, tui32 context)
}
/**
+ * 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;
+}
+
+/**
*
*****************************************************************************/
int APP_CC
@@ -428,6 +470,42 @@ scard_send_connect(struct trans *con, tui32 context, int wide,
}
/**
+ * 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.
*
@@ -769,6 +847,56 @@ scard_send_ReleaseContext(IRP* irp, tui32 context)
}
/**
+ * 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);
+}
+
+/**
*
*****************************************************************************/
static void APP_CC
@@ -1067,6 +1195,73 @@ scard_send_Connect(IRP* irp, tui32 context, int wide, READER_STATE* rs)
}
/**
+ * 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");
+}
+
/**
*
*****************************************************************************/
@@ -1473,6 +1696,38 @@ scard_handle_Connect_Return(struct stream *s, IRP *irp,
/**
*
*****************************************************************************/
+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");
+}
+
+/**
+ *
+ *****************************************************************************/
static void
scard_handle_BeginTransaction_Return(struct stream *s, IRP *irp,
tui32 DeviceId, tui32 CompletionId,
diff --git a/sesman/chansrv/smartcard.h b/sesman/chansrv/smartcard.h
index c763db31..a2019535 100644
--- a/sesman/chansrv/smartcard.h
+++ b/sesman/chansrv/smartcard.h
@@ -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 */
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-16 08:08:36 +0000