mirror of
https://gitea.osmocom.org/sim-card/simtrace.git
synced 2026-03-19 14:58:38 +03:00
re-structure the directory layout to reflect that that ft232r stuff is old
we have long only been working on the sam7 based system.
This commit is contained in:
Harald Welte
198
host/main.c
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198
host/main.c
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/* simtrace - main program for the host PC
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*
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* (C) 2010-2011 by Harald Welte <hwelte@hmw-consulting.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <errno.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <time.h>
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#define _GNU_SOURCE
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#include <getopt.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <usb.h>
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#include "usb_helper.h"
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#include "simtrace.h"
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#include "simtrace_usb.h"
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#include "apdu_split.h"
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#include <osmocom/core/gsmtap.h>
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#include <osmocom/core/gsmtap_util.h>
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static struct usb_dev_handle *udev;
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static struct apdu_split *as;
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static struct gsmtap_inst *g_gti;
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static int gsmtap_send_sim(const uint8_t *apdu, unsigned int len)
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{
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struct gsmtap_hdr *gh;
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unsigned int gross_len = len + sizeof(*gh);
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uint8_t *buf = malloc(gross_len);
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int rc;
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if (!buf)
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return -ENOMEM;
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memset(buf, 0, sizeof(*gh));
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gh = (struct gsmtap_hdr *) buf;
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gh->version = GSMTAP_VERSION;
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gh->hdr_len = sizeof(*gh)/4;
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gh->type = GSMTAP_TYPE_SIM;
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memcpy(buf + sizeof(*gh), apdu, len);
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rc = write(gsmtap_inst_fd(g_gti), buf, gross_len);
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if (rc < 0) {
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perror("write gsmtap");
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free(buf);
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return rc;
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}
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free(buf);
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return 0;
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}
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static void apdu_out_cb(uint8_t *buf, unsigned int len, void *user_data)
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{
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printf("APDU: %s\n", hexdump(buf, len));
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gsmtap_send_sim(buf, len);
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}
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static int process_usb_msg(uint8_t *buf, int len)
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{
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struct simtrace_hdr *sh = buf;
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uint8_t *payload = buf += sizeof(*sh);
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int payload_len = len - sizeof(*sh);
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if (payload_len < 0)
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return -EINVAL;
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switch (sh->cmd) {
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case SIMTRACE_MSGT_DATA:
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/* special treatment for ATR */
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if (sh->flags & SIMTRACE_FLAG_ATR) {
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printf("ATR ");
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apdu_out_cb(payload, payload_len, NULL);
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break;
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}
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/* everything else goes into APDU splitter */
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apdu_split_in(as, payload, payload_len);
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#if 0
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/* If waiting time has expired, signal explicit boundary */
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if (sh->flags & SIMTRACE_FLAG_WTIME_EXP)
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apdu_split_boundary(as);
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#endif
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break;
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case SIMTRACE_MSGT_RESET:
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default:
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printf("unknown simtrace msg type 0x%02x\n", sh->cmd);
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break;
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}
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}
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static void print_welcome(void)
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{
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printf("simtrace - GSM SIM and smartcard tracing\n"
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"(C) 2010 by Harald Welte <laforge@gnumonks.org>\n\n");
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}
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static void print_help(void)
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{
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printf( "\t-i\t--gsmtap-ip\tA.B.C.D\n"
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"\t-a\t--skip-atr\n"
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"\t-h\t--help\n"
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"\n"
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);
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}
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static const struct option opts[] = {
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{ "gsmtap-ip", 1, 0, 'i' },
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{ "skip-atr", 0, 0, 'a' },
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{ "help", 0, 0, 'h' },
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{ NULL, 0, 0, 0 }
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};
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int main(int argc, char **argv)
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{
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char buf[16*265];
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char *gsmtap_host = "127.0.0.1";
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int rc, c;
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int skip_atr = 0;
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unsigned int msg_count, byte_count;
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print_welcome();
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while (1) {
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int option_index = 0;
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c = getopt_long(argc, argv, "i:ah", opts, &option_index);
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if (c == -1)
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break;
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switch (c) {
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case 'h':
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print_help();
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exit(0);
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break;
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case 'i':
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gsmtap_host = optarg;
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break;
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case 'a':
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skip_atr = 1;
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break;
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}
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}
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g_gti = gsmtap_source_init(gsmtap_host, GSMTAP_UDP_PORT, 0);
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if (!g_gti) {
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perror("unable to open GSMTAP");
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exit(1);
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}
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gsmtap_source_add_sink(g_gti);
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udev = usb_find_open(SIMTRACE_USB_VENDOR, SIMTRACE_USB_PRODUCT);
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if (!udev) {
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perror("opening USB device");
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exit(1);
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}
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as = apdu_split_init(&apdu_out_cb, NULL);
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if (!as)
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exit(1);
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printf("Entering main loop\n");
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while (1) {
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rc = usb_bulk_read(udev, SIMTRACE_IN_EP, buf, sizeof(buf), 100000);
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if (rc < 0 && rc != -EAGAIN) {
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fprintf(stderr, "Error submitting BULK IN urb: %s\n", usb_strerror());
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exit(1);
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}
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if (rc > 0) {
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//printf("URB: %s\n", hexdump(buf, rc));
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process_usb_msg(buf, rc);
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msg_count++;
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byte_count += rc;
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}
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}
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}
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