Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 1 | |
| 2 | /* simtrace2-protocol - USB protocol library code for SIMtrace2 |
| 3 | * |
| 4 | * (C) 2016-2019 by Harald Welte <hwelte@hmw-consulting.de> |
| 5 | * (C) 2018, sysmocom -s.f.m.c. GmbH, Author: Kevin Redon <kredon@sysmocom.de> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version 2 |
| 10 | * of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 20 | */ |
| 21 | |
| 22 | #include <errno.h> |
| 23 | #include <unistd.h> |
| 24 | #include <stdio.h> |
| 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
| 27 | #include <stdint.h> |
| 28 | #include <signal.h> |
| 29 | #include <time.h> |
| 30 | #define _GNU_SOURCE |
| 31 | #include <getopt.h> |
| 32 | |
| 33 | #include <sys/time.h> |
| 34 | #include <sys/types.h> |
| 35 | #include <sys/socket.h> |
| 36 | #include <netinet/in.h> |
| 37 | #include <arpa/inet.h> |
| 38 | |
| 39 | #include <libusb.h> |
| 40 | |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 41 | #include <osmocom/simtrace2/simtrace_prot.h> |
| 42 | #include <osmocom/simtrace2/simtrace2_api.h> |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 43 | |
| 44 | #include <osmocom/core/utils.h> |
| 45 | #include <osmocom/core/socket.h> |
| 46 | #include <osmocom/core/msgb.h> |
| 47 | #include <osmocom/sim/class_tables.h> |
| 48 | #include <osmocom/sim/sim.h> |
| 49 | |
| 50 | /*********************************************************************** |
| 51 | * SIMTRACE core protocol |
| 52 | ***********************************************************************/ |
| 53 | |
| 54 | /*! \brief allocate a message buffer for simtrace use */ |
| 55 | static struct msgb *st_msgb_alloc(void) |
| 56 | { |
| 57 | return msgb_alloc_headroom(1024+32, 32, "SIMtrace"); |
| 58 | } |
| 59 | |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 60 | /*! \brief Transmit a given command to the SIMtrace2 device */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 61 | int osmo_st2_transp_tx_msg(struct osmo_st2_transport *transp, struct msgb *msg) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 62 | { |
| 63 | int rc; |
| 64 | |
| 65 | printf("<- %s\n", msgb_hexdump(msg)); |
| 66 | |
| 67 | if (transp->udp_fd < 0) { |
| 68 | int xfer_len; |
| 69 | |
| 70 | rc = libusb_bulk_transfer(transp->usb_devh, transp->usb_ep.out, |
| 71 | msgb_data(msg), msgb_length(msg), |
| 72 | &xfer_len, 100000); |
| 73 | } else { |
| 74 | rc = write(transp->udp_fd, msgb_data(msg), msgb_length(msg)); |
| 75 | } |
| 76 | |
| 77 | msgb_free(msg); |
| 78 | return rc; |
| 79 | } |
| 80 | |
| 81 | static struct simtrace_msg_hdr *st_push_hdr(struct msgb *msg, uint8_t msg_class, uint8_t msg_type, |
| 82 | uint8_t slot_nr) |
| 83 | { |
| 84 | struct simtrace_msg_hdr *sh; |
| 85 | |
| 86 | sh = (struct simtrace_msg_hdr *) msgb_push(msg, sizeof(*sh)); |
| 87 | memset(sh, 0, sizeof(*sh)); |
| 88 | sh->msg_class = msg_class; |
| 89 | sh->msg_type = msg_type; |
| 90 | sh->slot_nr = slot_nr; |
| 91 | sh->msg_len = msgb_length(msg); |
| 92 | |
| 93 | return sh; |
| 94 | } |
| 95 | |
| 96 | /* transmit a given message to a specified slot. Expects all headers |
| 97 | * present before calling the function */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 98 | int osmo_st2_slot_tx_msg(struct osmo_st2_slot *slot, struct msgb *msg, |
| 99 | uint8_t msg_class, uint8_t msg_type) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 100 | { |
| 101 | st_push_hdr(msg, msg_class, msg_type, slot->slot_nr); |
| 102 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 103 | return osmo_st2_transp_tx_msg(slot->transp, msg); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | /*********************************************************************** |
| 107 | * Card Emulation protocol |
| 108 | ***********************************************************************/ |
| 109 | |
| 110 | |
| 111 | /*! \brief Request the SIMtrace2 to generate a card-insert signal */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 112 | int osmo_st2_cardem_request_card_insert(struct osmo_st2_cardem_inst *ci, bool inserted) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 113 | { |
| 114 | struct msgb *msg = st_msgb_alloc(); |
| 115 | struct cardemu_usb_msg_cardinsert *cins; |
| 116 | |
| 117 | cins = (struct cardemu_usb_msg_cardinsert *) msgb_put(msg, sizeof(*cins)); |
| 118 | memset(cins, 0, sizeof(*cins)); |
| 119 | if (inserted) |
| 120 | cins->card_insert = 1; |
| 121 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 122 | return osmo_st2_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_CARDEM, SIMTRACE_MSGT_DT_CEMU_CARDINSERT); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | /*! \brief Request the SIMtrace2 to transmit a Procedure Byte, then Rx */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 126 | int osmo_st2_cardem_request_pb_and_rx(struct osmo_st2_cardem_inst *ci, uint8_t pb, uint8_t le) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 127 | { |
| 128 | struct msgb *msg = st_msgb_alloc(); |
| 129 | struct cardemu_usb_msg_tx_data *txd; |
| 130 | txd = (struct cardemu_usb_msg_tx_data *) msgb_put(msg, sizeof(*txd)); |
| 131 | |
| 132 | printf("<= %s(%02x, %d)\n", __func__, pb, le); |
| 133 | |
| 134 | memset(txd, 0, sizeof(*txd)); |
| 135 | txd->data_len = 1; |
| 136 | txd->flags = CEMU_DATA_F_PB_AND_RX; |
| 137 | /* one data byte */ |
| 138 | msgb_put_u8(msg, pb); |
| 139 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 140 | return osmo_st2_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_CARDEM, SIMTRACE_MSGT_DT_CEMU_TX_DATA); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 141 | } |
| 142 | |
| 143 | /*! \brief Request the SIMtrace2 to transmit a Procedure Byte, then Tx */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 144 | int osmo_st2_cardem_request_pb_and_tx(struct osmo_st2_cardem_inst *ci, uint8_t pb, |
| 145 | const uint8_t *data, uint16_t data_len_in) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 146 | { |
| 147 | struct msgb *msg = st_msgb_alloc(); |
| 148 | struct cardemu_usb_msg_tx_data *txd; |
| 149 | uint8_t *cur; |
| 150 | |
| 151 | txd = (struct cardemu_usb_msg_tx_data *) msgb_put(msg, sizeof(*txd)); |
| 152 | |
| 153 | printf("<= %s(%02x, %s, %d)\n", __func__, pb, |
| 154 | osmo_hexdump(data, data_len_in), data_len_in); |
| 155 | |
| 156 | memset(txd, 0, sizeof(*txd)); |
| 157 | txd->data_len = 1 + data_len_in; |
| 158 | txd->flags = CEMU_DATA_F_PB_AND_TX; |
| 159 | /* procedure byte */ |
| 160 | msgb_put_u8(msg, pb); |
| 161 | /* data */ |
| 162 | cur = msgb_put(msg, data_len_in); |
| 163 | memcpy(cur, data, data_len_in); |
| 164 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 165 | return osmo_st2_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_CARDEM, SIMTRACE_MSGT_DT_CEMU_TX_DATA); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 166 | } |
| 167 | |
| 168 | /*! \brief Request the SIMtrace2 to send a Status Word */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 169 | int osmo_st2_cardem_request_sw_tx(struct osmo_st2_cardem_inst *ci, const uint8_t *sw) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 170 | { |
| 171 | struct msgb *msg = st_msgb_alloc(); |
| 172 | struct cardemu_usb_msg_tx_data *txd; |
| 173 | uint8_t *cur; |
| 174 | |
| 175 | txd = (struct cardemu_usb_msg_tx_data *) msgb_put(msg, sizeof(*txd)); |
| 176 | |
| 177 | printf("<= %s(%02x %02x)\n", __func__, sw[0], sw[1]); |
| 178 | |
| 179 | memset(txd, 0, sizeof(*txd)); |
| 180 | txd->data_len = 2; |
| 181 | txd->flags = CEMU_DATA_F_PB_AND_TX | CEMU_DATA_F_FINAL; |
| 182 | cur = msgb_put(msg, 2); |
| 183 | cur[0] = sw[0]; |
| 184 | cur[1] = sw[1]; |
| 185 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 186 | return osmo_st2_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_CARDEM, SIMTRACE_MSGT_DT_CEMU_TX_DATA); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 187 | } |
| 188 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 189 | int osmo_st2_cardem_request_set_atr(struct osmo_st2_cardem_inst *ci, const uint8_t *atr, unsigned int atr_len) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 190 | { |
| 191 | struct msgb *msg = st_msgb_alloc(); |
| 192 | struct cardemu_usb_msg_set_atr *satr; |
| 193 | uint8_t *cur; |
| 194 | |
| 195 | satr = (struct cardemu_usb_msg_set_atr *) msgb_put(msg, sizeof(*satr)); |
| 196 | |
| 197 | printf("<= %s(%s)\n", __func__, osmo_hexdump(atr, atr_len)); |
| 198 | |
| 199 | memset(satr, 0, sizeof(*satr)); |
| 200 | satr->atr_len = atr_len; |
| 201 | cur = msgb_put(msg, atr_len); |
| 202 | memcpy(cur, atr, atr_len); |
| 203 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 204 | return osmo_st2_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_CARDEM, SIMTRACE_MSGT_DT_CEMU_SET_ATR); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | /*********************************************************************** |
| 208 | * Modem Control protocol |
| 209 | ***********************************************************************/ |
| 210 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 211 | static int _modem_reset(struct osmo_st2_slot *slot, uint8_t asserted, uint16_t pulse_ms) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 212 | { |
| 213 | struct msgb *msg = st_msgb_alloc(); |
| 214 | struct st_modem_reset *sr ; |
| 215 | |
| 216 | sr = (struct st_modem_reset *) msgb_put(msg, sizeof(*sr)); |
| 217 | sr->asserted = asserted; |
| 218 | sr->pulse_duration_msec = pulse_ms; |
| 219 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 220 | return osmo_st2_slot_tx_msg(slot, msg, SIMTRACE_MSGC_MODEM, SIMTRACE_MSGT_DT_MODEM_RESET); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | /*! \brief pulse the RESET line of the modem for \a duration_ms milli-seconds*/ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 224 | int osmo_st2_modem_reset_pulse(struct osmo_st2_slot *slot, uint16_t duration_ms) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 225 | { |
| 226 | return _modem_reset(slot, 2, duration_ms); |
| 227 | } |
| 228 | |
| 229 | /*! \brief assert the RESET line of the modem */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 230 | int osmo_st2_modem_reset_active(struct osmo_st2_slot *slot) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 231 | { |
| 232 | return _modem_reset(slot, 1, 0); |
| 233 | } |
| 234 | |
| 235 | /*! \brief de-assert the RESET line of the modem */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 236 | int osmo_st2_modem_reset_inactive(struct osmo_st2_slot *slot) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 237 | { |
| 238 | return _modem_reset(slot, 0, 0); |
| 239 | } |
| 240 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 241 | static int _modem_sim_select(struct osmo_st2_slot *slot, uint8_t remote_sim) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 242 | { |
| 243 | struct msgb *msg = st_msgb_alloc(); |
| 244 | struct st_modem_sim_select *ss; |
| 245 | |
| 246 | ss = (struct st_modem_sim_select *) msgb_put(msg, sizeof(*ss)); |
| 247 | ss->remote_sim = remote_sim; |
| 248 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 249 | return osmo_st2_slot_tx_msg(slot, msg, SIMTRACE_MSGC_MODEM, SIMTRACE_MSGT_DT_MODEM_SIM_SELECT); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 250 | } |
| 251 | |
| 252 | /*! \brief select local (physical) SIM for given slot */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 253 | int osmo_st2_modem_sim_select_local(struct osmo_st2_slot *slot) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 254 | { |
| 255 | return _modem_sim_select(slot, 0); |
| 256 | } |
| 257 | |
| 258 | /*! \brief select remote (emulated/forwarded) SIM for given slot */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 259 | int osmo_st2_modem_sim_select_remote(struct osmo_st2_slot *slot) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 260 | { |
| 261 | return _modem_sim_select(slot, 1); |
| 262 | } |
| 263 | |
| 264 | /*! \brief Request slot to send us status information about the modem */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 265 | int osmo_st2_modem_get_status(struct osmo_st2_slot *slot) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 266 | { |
| 267 | struct msgb *msg = st_msgb_alloc(); |
| 268 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 269 | return osmo_st2_slot_tx_msg(slot, msg, SIMTRACE_MSGC_MODEM, SIMTRACE_MSGT_BD_MODEM_STATUS); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 270 | } |