/* HM-CFG-LAN emulation 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 <stdlib.h>
#include <unistd.h>
#include <stdint.h>
+#include <stdarg.h>
#include <string.h>
#include <strings.h>
#include <poll.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <fcntl.h>
+#include <time.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <libusb-1.0/libusb.h>
+#include "version.h"
#include "hexdump.h"
#include "hmcfgusb.h"
#define PID_FILE "/var/run/hmland.pid"
+#define DEFAULT_REBOOT_SECONDS 86400
+#define LAN_READ_CHUNK_SIZE 2048
+/* Don't allow remote clients to consume all of our memory */
+#define LAN_MAX_LINE_LENGTH 4096
+#define LAN_MAX_BUF_LENGTH 1048576
+
extern char *optarg;
static int impersonate_hmlanif = 0;
static int debug = 0;
static int verbose = 0;
+static FILE *logfile = NULL;
+static int reboot_seconds = 0;
+static int reboot_at_hour = -1;
+static int reboot_at_minute = -1;
+static int reboot_set = 0;
+static uint8_t *lan_read_buf = NULL;
+static int lan_read_buflen = 0;
+
+struct queued_rx {
+ char *rx;
+ int len;
+ struct queued_rx *next;
+};
+
+static struct queued_rx *qrx = NULL;
+static int wait_for_h = 0;
#define FLAG_LENGTH_BYTE (1<<0)
#define FLAG_FORMAT_HEX (1<<1)
#define CHECK_SPACE(x) if ((*outpos + x) > outend) { fprintf(stderr, "Not enough space!\n"); return 0; }
#define CHECK_AVAIL(x) if ((*inpos + x) > inend) { fprintf(stderr, "Not enough input available!\n"); return 0; }
+static void print_timestamp(FILE *f)
+{
+ struct timeval tv;
+ struct tm *tmp;
+ char ts[32];
+
+ 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);
+ fprintf(f, "%s.%06ld: ", ts, tv.tv_usec);
+}
+
+static void write_log(char *buf, int len, char *fmt, ...)
+{
+ va_list ap;
+ int i;
+
+ if ((!logfile) && (!verbose))
+ return;
+
+ if (logfile)
+ print_timestamp(logfile);
+ if (verbose)
+ print_timestamp(stdout);
+
+ if (fmt) {
+ if (logfile) {
+ va_start(ap, fmt);
+ vfprintf(logfile, fmt, ap);
+ va_end(ap);
+ }
+ if (verbose) {
+ va_start(ap, fmt);
+ vprintf(fmt, ap);
+ va_end(ap);
+ }
+ }
+
+ if (buf && len) {
+ for (i = 0; i < len; i++) {
+ if (logfile)
+ fprintf(logfile, "%c", buf[i]);
+ if (verbose)
+ printf("%c", buf[i]);
+ }
+ if (logfile)
+ fprintf(logfile, "\n");
+ if (verbose)
+ printf("\n");
+ }
+ if (logfile)
+ fflush(logfile);
+}
+
static int format_part_out(uint8_t **inpos, int inlen, uint8_t **outpos, int outlen, int len, int flags)
{
const uint8_t nibble[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
uint8_t out[1024];
uint8_t *outpos;
uint8_t *inpos;
+ uint16_t version;
int fd = *((int*)data);
int w;
buf[7] = 'N';
}
format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0, FLAG_LENGTH_BYTE);
+ version = inpos[0] << 8;
+ version |= inpos[1];
format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 2, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0, FLAG_COMMA_BEFORE | FLAG_LENGTH_BYTE);
format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 3, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 3, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 4, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
- format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 2, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_NL);
+ if (version < 0x03c7) {
+ format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 2, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_NL);
+ } else {
+ format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 2, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
+ format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_NL);
+ }
+
+ if (!reboot_set) {
+ int new_reboot_seconds;
+
+ if (version < 0x03c7) {
+ new_reboot_seconds = DEFAULT_REBOOT_SECONDS;
+ } else {
+ new_reboot_seconds = 0;
+ }
+
+ if (verbose && new_reboot_seconds && (reboot_seconds != new_reboot_seconds))
+ printf("Rebooting in %u seconds due to old firmware (0.%d)\n",
+ new_reboot_seconds, version);
+
+ reboot_seconds = new_reboot_seconds;
+ }
break;
case 'E':
format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_NL);
+ break;
+ case 'G':
+ format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX | FLAG_NL);
+
break;
default:
format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), buf_len-1, FLAG_FORMAT_HEX | FLAG_NL);
hexdump(buf, buf_len, "Unknown> ");
break;
}
- if (debug)
- fprintf(stderr, "LAN < %s\n", out);
+
+ /* Queue packet until first respone to 'K' is received */
+ if (wait_for_h && buf[0] != 'H') {
+ struct queued_rx **rxp = &qrx;
+
+ while (*rxp)
+ rxp = &((*rxp)->next);
+
+ *rxp = malloc(sizeof(struct queued_rx));
+ if (!*rxp) {
+ perror("malloc");
+ return 0;
+ }
+
+ memset(*rxp, 0, sizeof(struct queued_rx));
+ (*rxp)->len = outpos-out;
+ (*rxp)->rx = malloc((*rxp)->len);
+ if (!(*rxp)->rx) {
+ perror("malloc");
+ return 0;
+ }
+ memset((*rxp)->rx, 0, (*rxp)->len);
+ memcpy((*rxp)->rx, out, (*rxp)->len);
+
+ return 1;
+ }
+
+ write_log((char*)out, outpos-out-2, "LAN < ");
w = write(fd, out, outpos-out);
if (w <= 0) {
return 0;
}
+ /* Send all queued packets */
+ if (wait_for_h) {
+ struct queued_rx *curr_rx = qrx;
+ struct queued_rx *last_rx;
+
+ while (curr_rx) {
+ write_log(curr_rx->rx, curr_rx->len-2, "LAN < ");
+
+ w = write(fd, curr_rx->rx, curr_rx->len);
+ if (w <= 0) {
+ perror("write");
+ }
+ last_rx = curr_rx;
+ curr_rx = curr_rx->next;
+
+ free(last_rx->rx);
+ free(last_rx);
+ }
+
+ qrx = NULL;
+
+ wait_for_h = 0;
+ }
+
return 1;
}
-static int hmlan_parse_in(int fd, void *data)
+static int hmlan_parse_one(uint8_t *cmd, int last, void *data)
{
struct hmcfgusb_dev *dev = data;
- uint8_t buf[1025];
uint8_t out[0x40]; //FIXME!!!
uint8_t *outpos;
- uint8_t *inpos;
- int i;
- int last;
- int r;
+ uint8_t *inpos = cmd;
- memset(buf, 0, sizeof(buf));
+ outpos = out;
- r = read(fd, buf, sizeof(buf)-1);
- if (r > 0) {
- uint8_t *inend = buf + r;
+ if (last == 0)
+ return 1;
- inpos = buf;
+ write_log((char*)cmd, last, "LAN > ");
- if (debug)
- fprintf(stderr, "\nLAN > %s", buf);
+ memset(out, 0, sizeof(out));
+ *outpos++ = *inpos++;
+
+ switch(*cmd) {
+ case 'S':
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), 0);
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), 0);
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), 0);
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), 0);
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), 0);
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), FLAG_LENGTH_BYTE);
+ break;
+ case 'Y':
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), 0);
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), 0);
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), FLAG_LENGTH_BYTE);
+ break;
+ case '+':
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), 0);
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), 0);
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), 0);
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), FLAG_LENGTH_BYTE);
+ default:
+ parse_part_in(&inpos, (last-(inpos-cmd)), &outpos, (sizeof(out)-(outpos-out)), FLAG_IGNORE_COMMAS);
+ break;
+ }
- while (inpos < inend) {
- uint8_t *instart = inpos;
+ hmcfgusb_send(dev, out, sizeof(out), 1);
- if ((*inpos == '\r') || (*inpos == '\n')) {
- inpos++;
- continue;
- }
-
- outpos = out;
+ return 1;
+}
- last = inend - inpos;
+static int hmlan_parse_in(int fd, void *data)
+{
+ uint8_t *newbuf;
+ int r;
+ int i;
- for (i = 0; i < last; i++) {
- if ((inpos[i] == '\r') || (inpos[i] == '\n')) {
- last = i;
+ newbuf = realloc(lan_read_buf, lan_read_buflen + LAN_READ_CHUNK_SIZE);
+ if (!newbuf) {
+ perror("realloc");
+ return 0;
+ }
+ lan_read_buf = newbuf;
+ r = read(fd, lan_read_buf + lan_read_buflen, LAN_READ_CHUNK_SIZE);
+ if (r > 0) {
+ lan_read_buflen += r;
+ if (lan_read_buflen > LAN_MAX_BUF_LENGTH) {
+ if (verbose)
+ printf("Our buffer is bigger than %d bytes (%d bytes), closing connection!\n", LAN_MAX_BUF_LENGTH, lan_read_buflen);
+ return -1;
+ }
+ while(lan_read_buflen > 0) {
+ int found = 0;
+
+ for (i = 0; i < lan_read_buflen; i++) {
+ if ((lan_read_buf[i] == '\r') || (lan_read_buf[i] == '\n')) {
+ if (i > 0)
+ hmlan_parse_one(lan_read_buf, i, data);
+ memmove(lan_read_buf, lan_read_buf + i + 1, lan_read_buflen - (i + 1));
+ lan_read_buflen -= (i + 1);
+ found = 1;
break;
}
+ if (i > LAN_MAX_LINE_LENGTH) {
+ if (verbose)
+ printf("Client sent more than %d bytes without newline, closing connection!\n", LAN_MAX_LINE_LENGTH);
+ return -1;
+ }
}
-
- if (last == 0)
- continue;
-
- memset(out, 0, sizeof(out));
- *outpos++ = *inpos++;
-
- switch(*instart) {
- case 'S':
- parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
- parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
- parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
- parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
- parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
- parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), FLAG_LENGTH_BYTE);
- break;
- case 'Y':
- parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
- parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
- parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), FLAG_LENGTH_BYTE);
- break;
- default:
- parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), FLAG_IGNORE_COMMAS);
- break;
+ if (!found)
+ break;
+ newbuf = realloc(lan_read_buf, lan_read_buflen);
+ if (lan_read_buflen && !newbuf) {
+ perror("realloc");
+ return 0;
}
-
- hmcfgusb_send(dev, out, sizeof(out), 1);
+ lan_read_buf = newbuf;
}
} else if (r < 0) {
- perror("read");
+ if (errno != ECONNRESET)
+ perror("read");
return r;
} else {
return 0;
return 0;
}
+ if (dev->bootloader) {
+ if (verbose)
+ printf("HM-CFG-USB in bootloader mode, restarting in normal mode...\n");
+
+ hmcfgusb_leave_bootloader(dev);
+
+ hmcfgusb_close(dev);
+ sleep(1);
+ return 0;
+ }
+
+ if ((reboot_at_hour != -1) && (reboot_at_minute != -1)) {
+ struct tm *tm_s;
+ time_t tm;
+
+ tm = time(NULL);
+ tm_s = localtime(&tm);
+ if (tm_s == NULL) {
+ perror("localtime");
+ return 0;
+ }
+
+ tm_s->tm_hour = reboot_at_hour;
+ tm_s->tm_min = reboot_at_minute;
+ tm_s->tm_sec = 0;
+
+ tm = mktime(tm_s);
+ reboot_seconds = tm - dev->opened_at;
+
+ while (reboot_seconds <= 0)
+ reboot_seconds += 86400;
+ }
+
+ if (verbose && reboot_seconds)
+ printf("Rebooting in %u seconds\n", reboot_seconds);
+
+
if (!hmcfgusb_add_pfd(dev, fd_in, POLLIN)) {
fprintf(stderr, "Can't add client to pollfd!\n");
hmcfgusb_close(dev);
memset(out, 0, sizeof(out));
out[0] = 'K';
- hmcfgusb_send_null_frame(dev);
+ wait_for_h = 1;
+ hmcfgusb_send_null_frame(dev, 1);
hmcfgusb_send(dev, out, sizeof(out), 1);
while(!quit) {
int fd;
- fd = hmcfgusb_poll(dev, 1); /* Wakeup device/bus at least once a second */
+ fd = hmcfgusb_poll(dev, 1000); /* Wakeup device/bus at least once a second */
if (fd >= 0) {
if (fd == master_socket) {
int client;
}
} else if (fd == -1) {
if (errno) {
- perror("hmcfgusb_poll");
- quit = 1;
- } else {
- /* periodically wakeup the device */
- hmcfgusb_send_null_frame(dev);
+ if (errno != ETIMEDOUT) {
+ perror("hmcfgusb_poll");
+ quit = 1;
+ } else {
+ /* periodically wakeup the device */
+ hmcfgusb_send_null_frame(dev, 1);
+ if (wait_for_h) {
+ memset(out, 0, sizeof(out));
+ out[0] = 'K';
+ hmcfgusb_send(dev, out, sizeof(out), 1);
+ }
+ }
+ }
+ }
+
+ if (reboot_seconds && ((dev->opened_at + reboot_seconds) <= time(NULL))) {
+ if (verbose) {
+ printf("HM-CFG-USB running since %lu seconds, rebooting now...\n",
+ time(NULL) - dev->opened_at);
}
+ hmcfgusb_enter_bootloader(dev);
}
}
exit(EXIT_FAILURE);
}
- impersonate_hmlanif = 1;
-
sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (sock == -1) {
perror("Can't open socket");
sin.sin_addr.s_addr = htonl(INADDR_ANY);
} else {
if (inet_pton(AF_INET, iface, &(sin.sin_addr.s_addr)) != 1) {
- perror("inet_ntop");
+ fprintf(stderr, "Can't convert IP %s, aborting!\n", iface);
return EXIT_FAILURE;
}
}
/* FIXME: getnameinfo... */
client_addr = ntohl(csin.sin_addr.s_addr);
- if (verbose) {
- printf("Client %d.%d.%d.%d connected!\n",
- (client_addr & 0xff000000) >> 24,
- (client_addr & 0x00ff0000) >> 16,
- (client_addr & 0x0000ff00) >> 8,
- (client_addr & 0x000000ff));
- }
+ write_log(NULL, 0, "Client %d.%d.%d.%d connected!\n",
+ (client_addr & 0xff000000) >> 24,
+ (client_addr & 0x00ff0000) >> 16,
+ (client_addr & 0x0000ff00) >> 8,
+ (client_addr & 0x000000ff));
comm(client, client, sock, flags);
shutdown(client, SHUT_RDWR);
close(client);
- if (verbose) {
- printf("Connection to %d.%d.%d.%d closed!\n",
- (client_addr & 0xff000000) >> 24,
- (client_addr & 0x00ff0000) >> 16,
- (client_addr & 0x0000ff00) >> 8,
- (client_addr & 0x000000ff));
- }
+ if (lan_read_buf)
+ free(lan_read_buf);
+ lan_read_buf = NULL;
+ lan_read_buflen = 0;
+
+ write_log(NULL, 0, "Connection to %d.%d.%d.%d closed!\n",
+ (client_addr & 0xff000000) >> 24,
+ (client_addr & 0x00ff0000) >> 16,
+ (client_addr & 0x0000ff00) >> 8,
+ (client_addr & 0x000000ff));
sleep(1);
}
{
fprintf(stderr, "Syntax: %s options\n\n", prog);
fprintf(stderr, "Possible options:\n");
- fprintf(stderr, "\t-D\tdebug mode\n");
- fprintf(stderr, "\t-d\tdaemon mode\n");
- fprintf(stderr, "\t-h\tthis help\n");
- fprintf(stderr, "\t-i\tinteractive mode (connect HM-CFG-USB to terminal)\n");
- fprintf(stderr, "\t-l ip\tlisten on given IP address only (for example 127.0.0.1)\n");
- fprintf(stderr, "\t-P\tcreate PID file " PID_FILE " in daemon mode\n");
- fprintf(stderr, "\t-p n\tlisten on port n (default 1000)\n");
- fprintf(stderr, "\t-v\tverbose mode\n");
+ fprintf(stderr, "\t-D\t\tdebug mode\n");
+ fprintf(stderr, "\t-d\t\tdaemon mode\n");
+ fprintf(stderr, "\t-h\t\tthis help\n");
+ fprintf(stderr, "\t-I\t\tpretend to be HM-LAN-IF for compatibility with client-software (previous default)\n");
+ fprintf(stderr, "\t-i\t\tinteractive mode (connect HM-CFG-USB to terminal)\n");
+ fprintf(stderr, "\t-l ip\t\tlisten on given IP address only (for example 127.0.0.1)\n");
+ fprintf(stderr, "\t-L logfile\tlog network-communication to logfile\n");
+ fprintf(stderr, "\t-P\t\tcreate PID file " PID_FILE " in daemon mode\n");
+ fprintf(stderr, "\t-p n\t\tlisten on port n (default: 1000)\n");
+ fprintf(stderr, "\t-r n\t\treboot HM-CFG-USB after n seconds (0: no reboot, default: %u if FW < 0.967, 0 otherwise)\n", DEFAULT_REBOOT_SECONDS);
+ fprintf(stderr, "\t hh:mm\treboot HM-CFG-USB daily at hh:mm\n");
+ fprintf(stderr, "\t-v\t\tverbose mode\n");
+ fprintf(stderr, "\t-V\t\tshow version (" VERSION ")\n");
}
int flags = 0;
char *ep;
int opt;
-
- while((opt = getopt(argc, argv, "DdhiPp:Rl:v")) != -1) {
+
+ while((opt = getopt(argc, argv, "DdhIiPp:Rr:l:L:vV")) != -1) {
switch (opt) {
case 'D':
debug = 1;
case 'd':
flags |= FLAG_DAEMON;
break;
+ case 'I':
+ impersonate_hmlanif = 1;
+ break;
case 'i':
interactive = 1;
break;
case 'R':
fprintf(stderr, "-R is no longer needed (1s wakeup is default)\n");
break;
+ case 'r':
+ reboot_seconds = strtoul(optarg, &ep, 10);
+ if (*ep != '\0') {
+ if (*ep == ':') {
+ reboot_at_hour = reboot_seconds;
+ ep++;
+ reboot_at_minute = strtoul(ep, &ep, 10);
+ if (*ep != '\0') {
+ fprintf(stderr, "Can't parse reboot-time!\n");
+ exit(EXIT_FAILURE);
+ }
+
+ reboot_seconds = 0;
+ } else {
+ fprintf(stderr, "Can't parse reboot-timeout!\n");
+ exit(EXIT_FAILURE);
+ }
+ }
+ reboot_set = 1;
+ break;
case 'l':
iface = optarg;
break;
+ case 'L':
+ logfile = fopen(optarg, "a");
+ if (!logfile) {
+ perror("fopen(logfile)");
+ exit(EXIT_FAILURE);
+ }
+ break;
case 'v':
verbose = 1;
break;
+ case 'V':
+ printf("hmland " VERSION "\n");
+ printf("Copyright (c) 2013-15 Michael Gernoth\n\n");
+ exit(EXIT_SUCCESS);
case 'h':
case ':':
case '?':