| #include <stdlib.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <assert.h> |
| #include <string.h> |
| |
| #include <osmocom/core/msgb.h> |
| #include <osmocom/core/utils.h> |
| |
| #include "ccid_proto.h" |
| |
| #define NR_SLOTS 8 |
| |
| struct ccid_slot { |
| struct ccid_instance *ci; |
| uint8_t slot_nr; |
| bool icc_present; |
| bool icc_powered; |
| bool icc_in_reset; |
| bool cmd_busy; |
| }; |
| |
| struct ccid_ops { |
| int (*send_in)(struct ccid_instance *ci, struct msgb *msg); |
| }; |
| |
| struct ccid_instance { |
| struct ccid_slot slot[NR_SLOTS]; |
| struct ccid_ops ops; |
| const char *name; |
| }; |
| |
| #define msgb_ccid_out(x) (union ccid_pc_to_rdr *)msgb_data(x) |
| #define msgb_ccid_in(x) (union ccid_rdr_to_pc *)msgb_data(x) |
| |
| #define LOGPCI(ci, lvl, fmt, args ...) LOGP(DCCID, lvl, "%s: " fmt, (ci)->name, ## args) |
| #define LOGPCS(cs, lvl, fmt, args ...) \ |
| LOGP(DCCID, lvl, "%s(%u): " fmt, (cc)->ci->name, (cc)->slot_nr, ## args) |
| |
| static struct ccid_slot *get_ccid_slot(struct ccid_instance *ci, uint8_t slot_nr) |
| { |
| if (slot_nr >= sizeof(ci->slot)) |
| return NULL; |
| else |
| return &ci->slot[slot_nr]; |
| } |
| |
| static uint8_t get_icc_status(const struct ccid_slot *cs) |
| { |
| if (cs->icc_present && cs->icc_powered && !cs->icc_in_reset) |
| return CCID_ICC_STATUS_PRES_ACT; |
| else if (!cs->icc_present) |
| return CCID_ICC_STATUS_NO_ICC; |
| else |
| return CCID_ICC_STATUS_PRES_INACT; |
| } |
| |
| #define SET_HDR(x, msg_type, slot, seq) do { \ |
| (x)->hdr.bMessageType = msg_type; \ |
| (x)->hdr.dwLength = 0; \ |
| (x)->hdr.bSlot = slot; \ |
| (x)->hdr.bSeq = seq; \ |
| } while (0) |
| |
| #define SET_HDR_IN(x, msg_type, slot, seq, status, error) do { \ |
| SET_HDR(&(x)->hdr, msg_type, slot, seq); \ |
| (x)->hdr.bStatus = status; \ |
| (x)->hdr.bError = error; \ |
| } while (0) |
| |
| #if 0 |
| static uint8_t ccid_pc_to_rdr_get_seq(const struct ccid_pc_to_rdr *u) |
| { |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| return ch->bSeq; |
| } |
| #endif |
| |
| /*********************************************************************** |
| * Message generation / sending |
| ***********************************************************************/ |
| |
| static struct msgb *ccid_msgb_alloc(void) |
| { |
| struct msgb *msg = msgb_alloc(512, "ccid"); |
| OSMO_ASSERT(msg); |
| return msg; |
| } |
| |
| /* Send given CCID message */ |
| static int ccid_send(struct ccid_instance *ci, struct msgb *msg) |
| { |
| return ci->ops.send_in(ci, msg); |
| } |
| |
| /* Send given CCID message for given slot; patch bSlot into message */ |
| static int ccid_slot_send(struct ccid_slot *cs, struct msgb *msg) |
| { |
| struct ccid_header *ch = (struct ccid_header *) msgb_ccid_in(msg); |
| |
| /* patch bSlotNr into message */ |
| ch->bSlot = cs->slot_nr; |
| return ccid_send(cs->ci, msg); |
| } |
| |
| /* Send given CCID message and mark slot as un-busy */ |
| static int ccid_slot_send_unbusy(struct ccid_slot *cs, struct msgb *msg) |
| { |
| cs->cmd_busy = false; |
| return ccid_slot_send(cs, msg); |
| } |
| |
| /* Section 6.2.1 */ |
| static struct msgb *ccid_gen_data_block_nr(uint8_t slot_nr, uint8_t icc_status, uint8_t seq, |
| uint8_t cmd_sts, enum ccid_error_code err, |
| const uint8_t *data, uint32_t data_len) |
| { |
| struct msgb *msg = ccid_msgb_alloc(); |
| struct ccid_rdr_to_pc_data_block *db = |
| (struct ccid_rdr_to_pc_data_block *) msgb_put(msg, sizeof(*db) + data_len); |
| uint8_t sts = (cmd_sts & CCID_CMD_STATUS_MASK) | icc_status; |
| |
| SET_HDR_IN(db, RDR_to_PC_DataBlock, slot_nr, seq, sts, err); |
| osmo_store32le(data_len, &db->hdr.hdr.dwLength); |
| memcpy(db->abData, data, data_len); |
| return msg; |
| } |
| static struct msgb *ccid_gen_data_block(struct ccid_slot *cs, uint8_t seq, uint8_t cmd_sts, |
| enum ccid_error_code err, const uint8_t *data, |
| uint32_t data_len) |
| { |
| return ccid_gen_data_block_nr(cs->slot_nr, get_icc_status(cs), seq, cmd_sts, err, data, data_len); |
| } |
| |
| /* Section 6.2.2 */ |
| static struct msgb *ccid_gen_slot_status_nr(uint8_t slot_nr, uint8_t icc_status, |
| uint8_t seq, uint8_t cmd_sts, |
| enum ccid_error_code err) |
| { |
| struct msgb *msg = ccid_msgb_alloc(); |
| struct ccid_rdr_to_pc_slot_status *ss = |
| (struct ccid_rdr_to_pc_slot_status *) msgb_put(msg, sizeof(*ss)); |
| uint8_t sts = (cmd_sts & CCID_CMD_STATUS_MASK) | icc_status; |
| |
| SET_HDR_IN(ss, RDR_to_PC_SlotStatus, slot_nr, seq, sts, err); |
| return msg; |
| } |
| static struct msgb *ccid_gen_slot_status(struct ccid_slot *cs, uint8_t seq, uint8_t cmd_sts, |
| enum ccid_error_code err) |
| { |
| return ccid_gen_slot_status_nr(cs->slot_nr, get_icc_status(cs), seq, cmd_sts, err); |
| } |
| |
| /* Section 6.2.3 */ |
| static struct msgb *ccid_gen_parameters_t0_nr(uint8_t slot_nr, uint8_t icc_status, |
| uint8_t seq, uint8_t cmd_sts, enum ccid_error_code err, |
| const struct ccid_proto_data_t0 *t0) |
| { |
| struct msgb *msg = ccid_msgb_alloc(); |
| struct ccid_rdr_to_pc_parameters *par = |
| (struct ccid_rdr_to_pc_parameters *) msgb_put(msg, sizeof(par->hdr)+sizeof(*t0)); |
| uint8_t sts = (cmd_sts & CCID_CMD_STATUS_MASK) | icc_status; |
| |
| SET_HDR_IN(par, RDR_to_PC_Parameters, slot_nr, seq, sts, err); |
| if (t0) { |
| osmo_store32le(sizeof(*t0), &par->hdr.hdr.dwLength); |
| par->abProtocolData.t0 = *t0; |
| } |
| return msg; |
| } |
| static struct msgb *ccid_gen_parameters_t0(struct ccid_slot *cs, uint8_t seq, uint8_t cmd_sts, |
| enum ccid_error_code err, |
| const struct ccid_proto_data_t0 *t0) |
| { |
| return ccid_gen_parameters_t0_nr(cs->slot_nr, get_icc_status(cs), seq, cmd_sts, err, t0); |
| } |
| |
| static struct msgb *ccid_gen_parameters_t1_nr(uint8_t slot_nr, uint8_t icc_status, |
| uint8_t seq, uint8_t cmd_sts, enum ccid_error_code err, |
| const struct ccid_proto_data_t1 *t1) |
| { |
| struct msgb *msg = ccid_msgb_alloc(); |
| struct ccid_rdr_to_pc_parameters *par = |
| (struct ccid_rdr_to_pc_parameters *) msgb_put(msg, sizeof(par->hdr)+sizeof(*t1)); |
| uint8_t sts = (cmd_sts & CCID_CMD_STATUS_MASK) | icc_status; |
| |
| SET_HDR_IN(par, RDR_to_PC_Parameters, slot_nr, seq, sts, err); |
| if (t1) { |
| osmo_store32le(sizeof(*t1), &par->hdr.hdr.dwLength); |
| par->abProtocolData.t1 = *t1; |
| } |
| return msg; |
| } |
| static struct msgb *ccid_gen_parameters_t1(struct ccid_slot *cs, uint8_t seq, uint8_t cmd_sts, |
| enum ccid_error_code err, |
| const struct ccid_proto_data_t1 *t1) |
| { |
| return ccid_gen_parameters_t1_nr(cs->slot_nr, get_icc_status(cs), seq, cmd_sts, err, t1); |
| } |
| |
| |
| /* Section 6.2.4 */ |
| static struct msgb *ccid_gen_escape_nr(uint8_t slot_nr, uint8_t icc_status, uint8_t seq, uint8_t cmd_sts, |
| enum ccid_error_code err, const uint8_t *data, uint32_t data_len) |
| { |
| struct msgb *msg = ccid_msgb_alloc(); |
| struct ccid_rdr_to_pc_escape *esc = |
| (struct ccid_rdr_to_pc_escape *) msgb_put(msg, sizeof(*esc) + data_len); |
| uint8_t sts = (cmd_sts & CCID_CMD_STATUS_MASK) | icc_status; |
| |
| SET_HDR_IN(esc, RDR_to_PC_Escape, slot_nr, seq, sts, err); |
| osmo_store32le(data_len, &esc->hdr.hdr.dwLength); |
| memcpy(esc->abData, data, data_len); |
| return msg; |
| } |
| static struct msgb *ccid_gen_escape(struct ccid_slot *cs, uint8_t seq, uint8_t cmd_sts, |
| enum ccid_error_code err, const uint8_t *data, |
| uint32_t data_len) |
| { |
| return ccid_gen_escape_nr(cs->slot_nr, get_icc_status(cs), seq, cmd_sts, err, data, data_len); |
| } |
| |
| /* Section 6.2.5 */ |
| static struct msgb *ccid_gen_clock_and_rate_nr(uint8_t slot_nr, uint8_t icc_status, uint8_t seq, |
| uint8_t cmd_sts, enum ccid_error_code err, |
| uint32_t clock_khz, uint32_t rate_bps) |
| { |
| struct msgb *msg = ccid_msgb_alloc(); |
| struct ccid_rdr_to_pc_data_rate_and_clock *drc = |
| (struct ccid_rdr_to_pc_data_rate_and_clock *) msgb_put(msg, sizeof(*drc)); |
| uint8_t sts = (cmd_sts & CCID_CMD_STATUS_MASK) | icc_status; |
| |
| SET_HDR_IN(drc, RDR_to_PC_DataRateAndClockFrequency, slot_nr, seq, sts, err); |
| osmo_store32le(8, &drc->hdr.hdr.dwLength); /* Message-specific data length (wtf?) */ |
| osmo_store32le(clock_khz, &drc->dwClockFrequency); /* kHz */ |
| osmo_store32le(rate_bps, &drc->dwDataRate); /* bps */ |
| return msg; |
| } |
| static struct msgb *ccid_gen_clock_and_rate(struct ccid_slot *cs, uint8_t seq, uint8_t cmd_sts, |
| enum ccid_error_code err, uint32_t clock_khz, |
| uint32_t rate_bps) |
| { |
| return ccid_gen_clock_and_rate_nr(cs->slot_nr, get_icc_status(cs), seq, cmd_sts, err, |
| clock_khz, rate_bps); |
| } |
| |
| /*! generate an error response for given input message_type/slot_nr/seq |
| * \param[in] msg_type CCID Message Type against which response is to be created |
| * \param[in] slot_nr CCID Slot Number |
| * \param[in] icc_status ICC Status of the slot |
| * \param[in] seq CCID Sequence number |
| * \param[in] err_code CCID Error Code to send |
| * \returns dynamically-allocated message buffer containing error response */ |
| static struct msgb *gen_err_resp(enum ccid_msg_type msg_type, uint8_t slot_nr, uint8_t icc_status, |
| uint8_t seq, enum ccid_error_code err_code) |
| { |
| struct msgb *resp = NULL; |
| |
| switch (msg_type) { |
| case PC_to_RDR_IccPowerOn: |
| case PC_to_RDR_XfrBlock: |
| case PC_to_RDR_Secure: |
| /* Return RDR_to_PC_DataBlock */ |
| resp = ccid_gen_data_block_nr(slot_nr, icc_status, seq, CCID_CMD_STATUS_FAILED, |
| err_code, NULL, 0); |
| break; |
| |
| case PC_to_RDR_IccPowerOff: |
| case PC_to_RDR_GetSlotStatus: |
| case PC_to_RDR_IccClock: |
| case PC_to_RDR_T0APDU: |
| case PC_to_RDR_Mechanical: |
| case PC_to_RDR_Abort: |
| /* Return RDR_to_PC_SlotStatus */ |
| resp = ccid_gen_slot_status_nr(slot_nr, icc_status, seq, CCID_CMD_STATUS_FAILED, |
| err_code); |
| break; |
| |
| case PC_to_RDR_GetParameters: |
| case PC_to_RDR_ResetParameters: |
| case PC_to_RDR_SetParameters: |
| /* Return RDR_to_PC_Parameters */ |
| resp = ccid_gen_parameters_t0_nr(slot_nr, icc_status, seq, CCID_CMD_STATUS_FAILED, |
| err_code, NULL); /* FIXME: parameters? */ |
| break; |
| |
| case PC_to_RDR_Escape: |
| /* Return RDR_to_PC_Escape */ |
| resp = ccid_gen_escape_nr(slot_nr, icc_status, seq, CCID_CMD_STATUS_FAILED, |
| err_code, NULL, 0); |
| break; |
| |
| case PC_to_RDR_SetDataRateAndClockFrequency: |
| /* Return RDR_to_PC_SlotStatus */ |
| resp = ccid_gen_slot_status_nr(slot_nr, icc_status, seq, CCID_CMD_STATUS_FAILED, |
| err_code); |
| break; |
| |
| default: |
| /* generate general error */ |
| resp = ccid_gen_slot_status_nr(slot_nr, icc_status, seq, CCID_CMD_STATUS_FAILED, |
| CCID_ERR_CMD_NOT_SUPPORTED); |
| break; |
| } |
| return resp; |
| } |
| |
| /*********************************************************************** |
| * Message reception / parsing |
| ***********************************************************************/ |
| |
| /* Section 6.1.3 */ |
| static int ccid_handle_get_slot_status(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->get_slot_status.hdr.bSeq; |
| struct msgb *resp; |
| |
| resp = ccid_gen_slot_status(cs, seq, CCID_CMD_STATUS_OK, 0); |
| |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| |
| /* Section 6.1.1 */ |
| static int ccid_handle_icc_power_on(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->icc_power_on.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* TODO: send actual ATR; handle error cases */ |
| /* TODO: handle this asynchronously */ |
| resp = ccid_gen_data_block(cs, seq, CCID_CMD_STATUS_OK, 0, NULL, 0); |
| |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.2 */ |
| static int ccid_handle_icc_power_off(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->icc_power_off.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* FIXME */ |
| resp = ccid_gen_slot_status(cs, seq, CCID_CMD_STATUS_OK, 0); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.4 */ |
| static int ccid_handle_xfr_block(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->xfr_block.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* FIXME */ |
| resp = ccid_gen_data_block(cs, seq, CCID_CMD_STATUS_OK, 0, NULL, 0); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.5 */ |
| static int ccid_handle_get_parameters(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->get_parameters.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* FIXME */ |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.6 */ |
| static int ccid_handle_reset_parameters(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->reset_parameters.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* FIXME */ |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.7 */ |
| static int ccid_handle_set_parameters(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->set_parameters.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* FIXME */ |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.8 */ |
| static int ccid_handle_escape(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->escape.hdr.bSeq; |
| struct msgb *resp; |
| |
| resp = ccid_gen_escape(cs, seq, CCID_CMD_STATUS_FAILED, CCID_ERR_CMD_NOT_SUPPORTED, NULL, 0); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.9 */ |
| static int ccid_handle_icc_clock(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->icc_clock.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* FIXME: Actually Stop/Start the clock */ |
| resp = ccid_gen_slot_status(cs, seq, CCID_CMD_STATUS_OK, 0); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.10 */ |
| static int ccid_handle_t0apdu(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->t0apdu.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* FIXME */ |
| //resp = ccid_gen_slot_status(cs, seq, CCID_CMD_STATUS_OK, 0); |
| resp = ccid_gen_slot_status(cs, seq, CCID_CMD_STATUS_FAILED, CCID_ERR_CMD_NOT_SUPPORTED); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.11 */ |
| static int ccid_handle_secure(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->secure.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* FIXME */ |
| resp = ccid_gen_slot_status(cs, seq, CCID_CMD_STATUS_FAILED, CCID_ERR_CMD_NOT_SUPPORTED); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.12 */ |
| static int ccid_handle_mechanical(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->mechanical.hdr.bSeq; |
| struct msgb *resp; |
| |
| resp = ccid_gen_slot_status(cs, seq, CCID_CMD_STATUS_FAILED, CCID_ERR_CMD_NOT_SUPPORTED); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.13 */ |
| static int ccid_handle_abort(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->abort.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* Check if the currently in-progress message is Abortable */ |
| switch (0/* FIXME */) { |
| case PC_to_RDR_IccPowerOn: |
| case PC_to_RDR_XfrBlock: |
| case PC_to_RDR_Escape: |
| case PC_to_RDR_Secure: |
| case PC_to_RDR_Mechanical: |
| //case PC_to_RDR_Abort: /* seriously? WTF! */ |
| break; |
| default: |
| /* CCID spec lists CMD_NOT_ABORTED, but gives no numberic value ?!? */ |
| resp = ccid_gen_slot_status(cs, seq, CCID_CMD_STATUS_FAILED, CCID_ERR_CMD_NOT_SUPPORTED); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* FIXME */ |
| resp = ccid_gen_slot_status(cs, seq, CCID_CMD_STATUS_OK, 0); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /* Section 6.1.14 */ |
| static int ccid_handle_set_rate_and_clock(struct ccid_slot *cs, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| uint8_t seq = u->set_rate_and_clock.hdr.bSeq; |
| struct msgb *resp; |
| |
| /* FIXME */ |
| resp = ccid_gen_clock_and_rate(cs, seq, CCID_CMD_STATUS_OK, 0, 9600, 2500000); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| |
| /*! Handle data arriving from the host on the OUT endpoint. |
| * \param[in] cs CCID Instance on which to operate |
| * \param[in] msgb received message buffer containing one CCID OUT EP message from the host |
| * \returns 0 on success; negative on error */ |
| int ccid_handle_out(struct ccid_instance *ci, struct msgb *msg) |
| { |
| const union ccid_pc_to_rdr *u = msgb_ccid_out(msg); |
| const struct ccid_header *ch = (const struct ccid_header *) u; |
| unsigned int len = msgb_length(msg); |
| struct ccid_slot *cs; |
| struct msgb *resp; |
| int rc; |
| |
| if (len < sizeof(*ch)) { |
| /* FIXME */ |
| return -1; |
| } |
| |
| /* Check for invalid slot number */ |
| cs = get_ccid_slot(ci, ch->bSlot); |
| if (!cs) { |
| resp = gen_err_resp(ch->bMessageType, ch->bSlot, CCID_ICC_STATUS_NO_ICC, ch->bSeq, 5); |
| return ccid_send(ci, resp); |
| } |
| |
| /* Check if slot is already busy; Reject any additional commands meanwhile */ |
| if (cs->cmd_busy) { |
| /* FIXME: ABORT logic as per section 5.3.1 of CCID Spec v1.1 */ |
| resp = gen_err_resp(ch->bMessageType, ch->bSlot, get_icc_status(cs), ch->bSeq, |
| CCID_ERR_CMD_SLOT_BUSY); |
| return ccid_send(ci, resp); |
| } |
| |
| /* we're now processing a command for the slot; mark slot as busy */ |
| cs->cmd_busy = true; |
| |
| /* TODO: enqueue into the per-slot specific input queue */ |
| |
| switch (ch->bMessageType) { |
| case PC_to_RDR_GetSlotStatus: |
| if (len != sizeof(u->get_slot_status)) |
| goto short_msg; |
| rc = ccid_handle_get_slot_status(cs, msg); |
| break; |
| case PC_to_RDR_IccPowerOn: |
| if (len != sizeof(u->icc_power_on)) |
| goto short_msg; |
| rc = ccid_handle_icc_power_on(cs, msg); |
| break; |
| case PC_to_RDR_IccPowerOff: |
| if (len != sizeof(u->icc_power_off)) |
| goto short_msg; |
| rc = ccid_handle_icc_power_off(cs, msg); |
| break; |
| case PC_to_RDR_XfrBlock: |
| if (len < sizeof(u->xfr_block)) |
| goto short_msg; |
| rc = ccid_handle_xfr_block(cs, msg); |
| break; |
| case PC_to_RDR_GetParameters: |
| if (len != sizeof(u->get_parameters)) |
| goto short_msg; |
| rc = ccid_handle_get_parameters(cs, msg); |
| break; |
| case PC_to_RDR_ResetParameters: |
| if (len != sizeof(u->reset_parameters)) |
| goto short_msg; |
| rc = ccid_handle_reset_parameters(cs, msg); |
| break; |
| case PC_to_RDR_SetParameters: |
| if (len != sizeof(u->set_parameters)) |
| goto short_msg; |
| rc = ccid_handle_set_parameters(cs, msg); |
| break; |
| case PC_to_RDR_Escape: |
| if (len < sizeof(u->escape)) |
| goto short_msg; |
| rc = ccid_handle_escape(cs, msg); |
| break; |
| case PC_to_RDR_IccClock: |
| if (len != sizeof(u->icc_clock)) |
| goto short_msg; |
| rc = ccid_handle_icc_clock(cs, msg); |
| break; |
| case PC_to_RDR_T0APDU: |
| if (len != /*FIXME*/ sizeof(u->t0apdu)) |
| goto short_msg; |
| rc = ccid_handle_t0apdu(cs, msg); |
| break; |
| case PC_to_RDR_Secure: |
| if (len < sizeof(u->secure)) |
| goto short_msg; |
| rc = ccid_handle_secure(cs, msg); |
| break; |
| case PC_to_RDR_Mechanical: |
| if (len != sizeof(u->mechanical)) |
| goto short_msg; |
| rc = ccid_handle_mechanical(cs, msg); |
| break; |
| case PC_to_RDR_Abort: |
| if (len != sizeof(u->abort)) |
| goto short_msg; |
| rc = ccid_handle_abort(cs, msg); |
| break; |
| case PC_to_RDR_SetDataRateAndClockFrequency: |
| if (len != sizeof(u->set_rate_and_clock)) |
| goto short_msg; |
| rc = ccid_handle_set_rate_and_clock(cs, msg); |
| break; |
| default: |
| /* generic response with bERror = 0 (command not supported) */ |
| resp = gen_err_resp(ch->bMessageType, ch->bSlot, CCID_ICC_STATUS_NO_ICC, ch->bSeq, |
| CCID_ERR_CMD_NOT_SUPPORTED); |
| return ccid_slot_send_unbusy(cs, resp); |
| } |
| return 0; |
| |
| short_msg: |
| /* FIXME */ |
| return -1; |
| } |