/* HM-sniffer for HM-CFG-USB
*
- * Copyright (c) 2013 Michael Gernoth <michael@gernoth.net>
+ * Copyright (c) 2013-15 Michael Gernoth <michael@gernoth.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
#include <strings.h>
#include <poll.h>
#include <errno.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
+#include <time.h>
+#include <sys/time.h>
#include <libusb-1.0/libusb.h>
+#include "version.h"
#include "hexdump.h"
#include "hmcfgusb.h"
+static int verbose = 0;
+
/* See HMConfig.pm */
-char *hm_message_types(uint8_t type)
+char *hm_message_types(uint8_t type, uint8_t subtype)
{
switch(type) {
case 0x00:
return "Configuration";
break;
case 0x02:
- return "Acknowledge";
+ if (subtype >= 0x80 && subtype <= 0x8f) {
+ return "NACK";
+ } else if (subtype == 0x01) {
+ return "ACKinfo";
+ } else if (subtype == 0x04) {
+ return "AESrequest";
+ }
+ return "ACK";
break;
case 0x03:
- return "AES";
+ return "AESreply";
break;
case 0x04:
- return "AES-Key";
+ return "AESkey";
break;
case 0x10:
return "Information";
case 0x58:
return "Climate event";
break;
+ case 0x5a:
+ return "Thermal control";
+ break;
+ case 0x5e:
+ return "Power event";
+ break;
case 0x70:
return "Weather event";
break;
static void dissect_hm(uint8_t *buf, int len)
{
+ struct timeval tv;
+ struct tm *tmp;
+ char ts[32];
+ static int count = 0;
int i;
- for (i = 0; i < len; i++) {
- printf("%02X", buf[i]);
- }
- printf("\n");
- printf("Packet information:\n");
- printf("\tLength: %u\n", buf[0]);
- printf("\tMessage ID: %u\n", buf[1]);
- printf("\tSender: %02x%02x%02x\n", buf[4], buf[5], buf[6]);
- printf("\tReceiver: %02x%02x%02x\n", buf[7], buf[8], buf[9]);
- printf("\tControl Byte: 0x%02x\n", buf[2]);
- printf("\t\tFlags: ");
- if (buf[2] & (1 << 0)) printf("WAKEUP ");
- if (buf[2] & (1 << 1)) printf("WAKEMEUP ");
- if (buf[2] & (1 << 2)) printf("BCAST ");
- if (buf[2] & (1 << 3)) printf("? ");
- if (buf[2] & (1 << 4)) printf("BURST ");
- if (buf[2] & (1 << 5)) printf("BIDI ");
- if (buf[2] & (1 << 6)) printf("RPTED ");
- if (buf[2] & (1 << 7)) printf("RPTEN ");
- printf("\n");
- printf("\tMessage type: %s (0x%02x)\n", hm_message_types(buf[3]), buf[3]);
- printf("\tMesage: ");
- for (i = 10; i < len; i++) {
- printf("%02X", buf[i]);
- }
- printf("\n");
+ gettimeofday(&tv, NULL);
+ tmp = localtime(&tv.tv_sec);
+ memset(ts, 0, sizeof(ts));
+ strftime(ts, sizeof(ts)-1, "%Y-%m-%d %H:%M:%S", tmp);
+
+ if (verbose) {
+ printf("%s.%06ld: ", ts, tv.tv_usec);
- printf("\n");
+ for (i = 0; i < len; i++) {
+ printf("%02X", buf[i]);
+ }
+ printf("\n");
+ printf("Packet information:\n");
+ printf("\tLength: %u\n", buf[0]);
+ printf("\tMessage ID: %u\n", buf[1]);
+ printf("\tSender: %02x%02x%02x\n", buf[4], buf[5], buf[6]);
+ printf("\tReceiver: %02x%02x%02x\n", buf[7], buf[8], buf[9]);
+ printf("\tControl Byte: 0x%02x\n", buf[2]);
+ printf("\t\tFlags: ");
+ if (buf[2] & (1 << 0)) printf("WAKEUP ");
+ if (buf[2] & (1 << 1)) printf("WAKEMEUP ");
+ if (buf[2] & (1 << 2)) printf("CFG ");
+ if (buf[2] & (1 << 3)) printf("? ");
+ if (buf[2] & (1 << 4)) printf("BURST ");
+ if (buf[2] & (1 << 5)) printf("BIDI ");
+ if (buf[2] & (1 << 6)) printf("RPTED ");
+ if (buf[2] & (1 << 7)) printf("RPTEN ");
+ printf("\n");
+ printf("\tMessage type: %s (0x%02x 0x%02x)\n", hm_message_types(buf[3], buf[10]), buf[3], buf[10]);
+ printf("\tMessage: ");
+ for (i = 10; i < len; i++) {
+ printf("%02X", buf[i]);
+ }
+ printf("\n");
+ printf("\n");
+ } else {
+ if (!(count++ % 20))
+ printf(" LL NR FL CM sender recvr payload\n");
+
+ printf("%s.%03ld: %02X %02X %02X %02X %02X%02X%02X %02X%02X%02X ",
+ ts, tv.tv_usec/1000,
+ buf[0], buf[1], buf[2], buf[3],
+ buf[4], buf[5], buf[6],
+ buf[7], buf[8], buf[9]);
+
+ for (i = 10; i < len; i++) {
+ printf("%02X", buf[i]);
+ }
+ printf("%s(%s)\n", (i>10)?" ":"", hm_message_types(buf[3], buf[10]));
+ }
}
-static void parse_hmcfgusb(uint8_t *buf, int buf_len, void *data)
+struct recv_data {
+ int wrong_hmid;
+};
+
+static int parse_hmcfgusb(uint8_t *buf, int buf_len, void *data)
{
+ struct recv_data *rdata = data;
+
if (buf_len < 1)
- return;
+ return 1;
switch(buf[0]) {
case 'E':
dissect_hm(buf + 13, buf[13] + 1);
break;
case 'H':
+ if ((buf[27] != 0x00) ||
+ (buf[28] != 0x00) ||
+ (buf[29] != 0x00)) {
+ printf("hmId is currently set to: %02x%02x%02x\n", buf[27], buf[28], buf[29]);
+ rdata->wrong_hmid = 1;
+ }
+ break;
case 'R':
case 'I':
break;
hexdump(buf, buf_len, "Unknown> ");
break;
}
+
+ return 1;
}
+void hmsniff_syntax(char *prog)
+{
+ fprintf(stderr, "Syntax: %s options\n\n", prog);
+ fprintf(stderr, "Possible options:\n");
+ fprintf(stderr, "\t-v\t\tverbose mode\n");
+ fprintf(stderr, "\t-V\t\tshow version (" VERSION ")\n");
+
+}
int main(int argc, char **argv)
{
struct hmcfgusb_dev *dev;
+ struct recv_data rdata;
int quit = 0;
+ int opt;
- hmcfgusb_set_debug(0);
-
- dev = hmcfgusb_init(parse_hmcfgusb, NULL);
- if (!dev) {
- fprintf(stderr, "Can't initialize HM-CFG-USB!\n");
- return EXIT_FAILURE;
+ while((opt = getopt(argc, argv, "vV")) != -1) {
+ switch (opt) {
+ case 'v':
+ verbose = 1;
+ break;
+ case 'V':
+ printf("hmsniff " VERSION "\n");
+ printf("Copyright (c) 2013-15 Michael Gernoth\n\n");
+ exit(EXIT_SUCCESS);
+ case 'h':
+ case ':':
+ case '?':
+ default:
+ hmsniff_syntax(argv[0]);
+ exit(EXIT_FAILURE);
+ break;
+ }
}
- hmcfgusb_send(dev, (unsigned char*)"A\00\00\00", 3, 1);
+ hmcfgusb_set_debug(0);
- while(!quit) {
- int fd;
+ do {
+ memset(&rdata, 0, sizeof(rdata));
+ rdata.wrong_hmid = 0;
- fd = hmcfgusb_poll(dev, 3600);
- if (fd >= 0) {
- fprintf(stderr, "activity on unknown fd %d!\n", fd);
+ dev = hmcfgusb_init(parse_hmcfgusb, &rdata);
+ if (!dev) {
+ fprintf(stderr, "Can't initialize HM-CFG-USB, retrying in 1s...\n");
+ sleep(1);
continue;
- } else if (fd == -1) {
- if (errno) {
- perror("hmcfgusb_poll");
- quit = 1;
+ }
+ printf("HM-CFG-USB opened!\n");
+
+ hmcfgusb_send_null_frame(dev, 1);
+ hmcfgusb_send(dev, (unsigned char*)"K", 1, 1);
+
+ while(!quit) {
+ int fd;
+
+ if (rdata.wrong_hmid) {
+ printf("changing hmId to 000000, this might reboot the device!\n");
+ hmcfgusb_send(dev, (unsigned char*)"A\00\00\00", 4, 1);
+ rdata.wrong_hmid = 0;
+ hmcfgusb_send(dev, (unsigned char*)"K", 1, 1);
+ }
+ fd = hmcfgusb_poll(dev, 1000);
+ if (fd >= 0) {
+ fprintf(stderr, "activity on unknown fd %d!\n", fd);
+ continue;
+ } else if (fd == -1) {
+ if (errno) {
+ if (errno != ETIMEDOUT) {
+ perror("hmcfgusb_poll");
+ break;
+ } else {
+ /* periodically wakeup the device */
+ hmcfgusb_send_null_frame(dev, 1);
+ }
+ }
}
}
- }
- hmcfgusb_close(dev);
+ hmcfgusb_close(dev);
+ } while (!quit);
+
+ hmcfgusb_exit();
+
return EXIT_SUCCESS;
}
projects / hmcfgusb / blobdiff