- try to deal more gracefully with hotplug events
git-svn-id: https://www.opensc-project.org/svnp/opensc/trunk@999 c6295689-39f2-0310-b995-f0e70906c6a9
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@ -16,6 +16,7 @@
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#include <openct/openct.h>
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#include <openct/logging.h>
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#include <openct/error.h>
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#include "opensc.h"
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#include "internal.h"
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@ -50,6 +51,7 @@ static int openct_reader_lock(struct sc_reader *reader,
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struct sc_slot_info *slot);
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static int openct_reader_unlock(struct sc_reader *reader,
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struct sc_slot_info *slot);
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static int openct_error(struct sc_reader *, int);
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/* the operations struct, already initialized */
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static struct sc_reader_operations openct_reader_operations = {
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@ -215,33 +217,6 @@ openct_reader_detect_card_presence(struct sc_reader *reader,
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return slot->flags;
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}
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#if 0
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int openct_reader_unix_cmd(struct sc_reader *reader,
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struct sc_slot_info *slot,
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u8 cmd) {
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struct openct_privslot *myprivslot;
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u8 msg;
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int rc;
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SC_FUNC_CALLED(reader->ctx, 1);
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myprivslot = slot->drv_data;
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rc = write(myprivslot->fd, &cmd, sizeof(cmd));
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if (rc != sizeof(cmd)) {
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error(reader->ctx, "openct_reader_unix_cmd write failed\n");
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return SC_ERROR_READER;
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}
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rc = read(myprivslot->fd, &msg, sizeof(msg));
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if (rc != 1 || msg != 0) {
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error(reader->ctx, "openct_reader_unix_cmd read failed\n");
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return SC_ERROR_READER;
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}
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return SC_NO_ERROR;
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}
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#endif
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static int
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openct_reader_connect(struct sc_reader *reader,
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struct sc_slot_info *slot)
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@ -277,6 +252,21 @@ openct_reader_connect(struct sc_reader *reader,
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return SC_NO_ERROR;
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}
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static int
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openct_reader_reconnect(struct sc_reader *reader,
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struct sc_slot_info *slot)
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{
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struct driver_data *data = (struct driver_data *) reader->drv_data;
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int rc;
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if (data->h != NULL)
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return 0;
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if ((rc = openct_reader_connect(reader, slot)) < 0)
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return SC_ERROR_READER_DETACHED;
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return SC_ERROR_READER_REATTACHED;
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}
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int
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openct_reader_disconnect(struct sc_reader *reader,
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struct sc_slot_info *slot, int action)
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@ -301,20 +291,24 @@ openct_reader_transmit(struct sc_reader *reader,
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SC_FUNC_CALLED(reader->ctx, 1);
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if (data->h == 0)
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return SC_ERROR_CARD_NOT_PRESENT;
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/* Hotplug check */
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if ((rc = openct_reader_reconnect(reader, slot)) < 0)
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return rc;
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rc = ct_card_transact(data->h, slot->id,
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sendbuf, sendsize,
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recvbuf, *recvsize);
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if (rc < 0) {
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/* XXX - check error code */
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return SC_ERROR_READER;
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if (rc == IFD_ERROR_NOT_CONNECTED) {
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ct_reader_disconnect(data->h);
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data->h = NULL;
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return SC_ERROR_READER_DETACHED;
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}
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if (rc >= 0)
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*recvsize = rc;
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return SC_NO_ERROR;
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return openct_error(reader, rc);
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}
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int
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@ -323,15 +317,25 @@ openct_reader_lock(struct sc_reader *reader,
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{
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struct driver_data *data = (struct driver_data *) reader->drv_data;
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struct slot_data *slot_data = (struct slot_data *) slot->drv_data;
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int rc;
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int rc, retry = 1;
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SC_FUNC_CALLED(reader->ctx, 1);
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rc = ct_card_lock(data->h, slot->id, IFD_LOCK_EXCLUSIVE, &slot_data->excl_lock);
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if (rc < 0)
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return SC_ERROR_READER;
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/* Hotplug check */
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if ((rc = openct_reader_reconnect(reader, slot)) < 0)
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return rc;
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return 0;
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rc = ct_card_lock(data->h, slot->id,
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IFD_LOCK_EXCLUSIVE,
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&slot_data->excl_lock);
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if (rc == IFD_ERROR_NOT_CONNECTED) {
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ct_reader_disconnect(data->h);
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data->h = NULL;
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return SC_ERROR_READER_DETACHED;
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}
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return openct_error(reader, rc);
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}
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int
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@ -343,10 +347,25 @@ openct_reader_unlock(struct sc_reader *reader,
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int rc;
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SC_FUNC_CALLED(reader->ctx, 1);
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rc = ct_card_unlock(data->h, slot->id, slot_data->excl_lock);
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if (rc < 0)
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return SC_ERROR_READER;
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/* We couldn't care less */
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if (rc == IFD_ERROR_NOT_CONNECTED)
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return 0;
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return openct_error(reader, rc);
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}
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/*
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* Handle an error code returned by OpenCT
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*/
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int
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openct_error(struct sc_reader *reader, int code)
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{
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if (code >= 0)
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return code;
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/* Fixme: translate error code */
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return SC_ERROR_READER;
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}
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