#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
+#include <sys/stat.h>
+#include <fcntl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <libusb-1.0/libusb.h>
#include "hexdump.h"
#include "hmcfgusb.h"
+#define PID_FILE "/var/run/hmland.pid"
+
extern char *optarg;
static int impersonate_hmlanif = 0;
hexdump(buf, buf_len, "Unknown> ");
break;
}
- if (debug)
- fprintf(stderr, "LAN < %s\n", out);
+ if (verbose) {
+ int i;
+
+ printf("LAN < ");
+ for (i = 0; i < outpos-out-2; i++)
+ printf("%c", out[i]);
+ printf("\n");
+ }
w = write(fd, out, outpos-out);
if (w <= 0) {
inpos = buf;
- if (debug)
- fprintf(stderr, "\nLAN > %s", buf);
-
while (inpos < inend) {
uint8_t *instart = inpos;
if (last == 0)
continue;
+ if (verbose) {
+ printf("LAN > ");
+ for (i = 0; i < last; i++)
+ printf("%c", instart[i]);
+ printf("\n");
+ }
+
memset(out, 0, sizeof(out));
*outpos++ = *inpos++;
- switch(buf[0]) {
+ 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)), 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;
return 1;
}
-static int comm(int fd_in, int fd_out, int master_socket)
+static int comm(int fd_in, int fd_out, int master_socket, int flags)
{
struct hmcfgusb_dev *dev;
+ uint8_t out[0x40]; //FIXME!!!
int quit = 0;
hmcfgusb_set_debug(debug);
}
}
- hmcfgusb_send(dev, (unsigned char*)"K", 1, 1);
+ memset(out, 0, sizeof(out));
+ out[0] = 'K';
+ hmcfgusb_send_null_frame(dev);
+ hmcfgusb_send(dev, out, sizeof(out), 1);
while(!quit) {
int fd;
- fd = hmcfgusb_poll(dev, 3600);
+ fd = hmcfgusb_poll(dev, 1); /* Wakeup device/bus at least once a second */
if (fd >= 0) {
if (fd == master_socket) {
int client;
if (errno) {
perror("hmcfgusb_poll");
quit = 1;
+ } else {
+ /* periodically wakeup the device */
+ hmcfgusb_send_null_frame(dev);
}
}
}
return 1;
}
-static int socket_server(char *iface, int port, int daemon)
+void sigterm_handler(int sig)
+{
+ if (unlink(PID_FILE) == -1)
+ perror("Can't remove PID file");
+
+ exit(EXIT_SUCCESS);
+}
+
+#define FLAG_DAEMON (1 << 0)
+#define FLAG_PID_FILE (1 << 1)
+
+static int socket_server(char *iface, int port, int flags)
{
struct sigaction sact;
struct sockaddr_in sin;
int n;
pid_t pid;
- if (daemon) {
+ if (flags & FLAG_DAEMON) {
+ FILE *pidfile = NULL;
+
+ if (flags & FLAG_PID_FILE) {
+ int fd;
+
+ fd = open(PID_FILE, O_CREAT | O_EXCL | O_WRONLY, 0644);
+ if (fd == -1) {
+ if (errno == EEXIST) {
+ pid_t old_pid;
+ pidfile = fopen(PID_FILE, "r");
+ if (!pidfile) {
+ perror("PID file " PID_FILE " already exists, already running?");
+ exit(EXIT_FAILURE);
+ }
+
+ if (fscanf(pidfile, "%u", &old_pid) != 1) {
+ fclose(pidfile);
+ fprintf(stderr, "Can't read old PID from " PID_FILE ", already running?\n");
+ exit(EXIT_FAILURE);
+ }
+
+ fclose(pidfile);
+
+ fprintf(stderr, "Already running with PID %u according to " PID_FILE "!\n", old_pid);
+ exit(EXIT_FAILURE);
+ }
+ perror("Can't create PID file " PID_FILE);
+ exit(EXIT_FAILURE);
+ }
+
+ pidfile = fdopen(fd, "w");
+ if (!pidfile) {
+ perror("Can't reopen PID file fd");
+ exit(EXIT_FAILURE);
+ }
+
+ memset(&sact, 0, sizeof(sact));
+ sact.sa_handler = sigterm_handler;
+
+ if (sigaction(SIGTERM, &sact, NULL) == -1) {
+ perror("sigaction(SIGTERM)");
+ exit(EXIT_FAILURE);
+ }
+ }
+
pid = fork();
if (pid > 0) {
+ if (pidfile) {
+ fprintf(pidfile, "%u\n", pid);
+ fclose(pidfile);
+ }
+
printf("Daemon with PID %u started!\n", pid);
exit(EXIT_SUCCESS);
} else if (pid < 0) {
perror("fork");
exit(EXIT_FAILURE);
}
+
+ if (pidfile)
+ fclose(pidfile);
}
memset(&sact, 0, sizeof(sact));
sact.sa_handler = SIG_IGN;
if (sigaction(SIGPIPE, &sact, NULL) == -1) {
- perror("sigaction");
+ perror("sigaction(SIGPIPE)");
exit(EXIT_FAILURE);
}
(client_addr & 0x000000ff));
}
- comm(client, client, sock);
+ comm(client, client, sock, flags);
shutdown(client, SHUT_RDWR);
close(client);
(client_addr & 0x0000ff00) >> 8,
(client_addr & 0x000000ff));
}
-
+ sleep(1);
}
return EXIT_SUCCESS;
}
-static int interactive_server(void)
+static int interactive_server(int flags)
{
- if (!comm(STDIN_FILENO, STDOUT_FILENO, -1))
+ if (!comm(STDIN_FILENO, STDOUT_FILENO, -1, flags))
return EXIT_FAILURE;
return EXIT_SUCCESS;
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");
int port = 1000;
char *iface = NULL;
int interactive = 0;
- int daemon = 0;
+ int flags = 0;
char *ep;
int opt;
- while((opt = getopt(argc, argv, "Ddhip:l:v")) != -1) {
+ while((opt = getopt(argc, argv, "DdhiPp:Rl:v")) != -1) {
switch (opt) {
case 'D':
debug = 1;
verbose = 1;
break;
case 'd':
- daemon = 1;
+ flags |= FLAG_DAEMON;
break;
case 'i':
interactive = 1;
break;
+ case 'P':
+ flags |= FLAG_PID_FILE;
+ break;
case 'p':
port = strtoul(optarg, &ep, 10);
if (*ep != '\0') {
exit(EXIT_FAILURE);
}
break;
+ case 'R':
+ fprintf(stderr, "-R is no longer needed (1s wakeup is default)\n");
+ break;
case 'l':
iface = optarg;
break;
}
if (interactive) {
- return interactive_server();
+ return interactive_server(flags);
} else {
- return socket_server(iface, port, daemon);
+ return socket_server(iface, port, flags);
}
}
projects / hmcfgusb / blobdiff