add delays to stop device from resetting

[hmcfgusb] / hmland.c

diff --git a/hmland.c b/hmland.c
index bccfa0d3f5bddae062afe8532ca37ec88f97eb4b..cde993b795df0b375841e64ca285894ffb578d54 100644 (file)
--- a/hmland.c
+++ b/hmland.c
@@ -38,23 +38,148 @@
 #include "hexdump.h"
 #include "hmcfgusb.h"
 
 #include "hexdump.h"
 #include "hmcfgusb.h"
 

+extern char *optarg;
+

 static int impersonate_hmlanif = 0;
 static int impersonate_hmlanif = 0;

+static int debug = 0;
+static int verbose = 0;
+
+#define        FLAG_LENGTH_BYTE        (1<<0)
+#define        FLAG_FORMAT_HEX         (1<<1)
+#define        FLAG_COMMA_BEFORE       (1<<2)
+#define        FLAG_COMMA_AFTER        (1<<3)
+#define        FLAG_NL                 (1<<4)
+#define        FLAG_IGNORE_COMMAS      (1<<5)
+
+#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 int format_part_out(uint8_t **inpos, int inlen, uint8_t **outpos, int outlen, int len, int flags)
+{
+       uint8_t *buf_out = *outpos;
+       uint8_t *outend = *outpos + outlen;
+       uint8_t *inend = *inpos + inlen;
+       int i;
+
+       if (flags & FLAG_COMMA_BEFORE) {
+               CHECK_SPACE(1);
+               **outpos=',';
+               *outpos += 1;
+       }
+
+       if (flags & FLAG_LENGTH_BYTE) {
+               CHECK_AVAIL(1);
+               len = **inpos;
+               *inpos += 1;
+       }
+
+       if (flags & FLAG_FORMAT_HEX) {
+               char hex[3];
+
+               memset(hex, 0, sizeof(hex));
+
+               CHECK_AVAIL(len);
+               CHECK_SPACE(len*2);
+               for (i = 0; i < len; i++) {
+                       if (snprintf(hex, sizeof(hex), "%02X", **inpos) != 2) {
+                               fprintf(stderr, "Can't format hex-string!\n");
+                               return 0;
+                       }
+                       *inpos += 1;
+                       memcpy(*outpos, hex, 2);
+                       *outpos += 2;
+               }
+       } else {
+               CHECK_AVAIL(len);
+               CHECK_SPACE(len);
+               memcpy(*outpos, *inpos, len);
+               *outpos += len;
+               *inpos += len;
+       }
+
+       if (flags & FLAG_COMMA_AFTER) {
+               CHECK_SPACE(1);
+               **outpos=',';
+               *outpos += 1;
+       }
+
+       if (flags & FLAG_NL) {
+               CHECK_SPACE(2);
+               **outpos='\r';
+               *outpos += 1;
+               **outpos='\n';
+               *outpos += 1;
+       }
+
+       return *outpos - buf_out;
+}
+
+static int parse_part_in(uint8_t **inpos, int inlen, uint8_t **outpos, int outlen, int flags)
+{
+       uint8_t *buf_out = *outpos;
+       uint8_t *outend = *outpos + outlen;
+       uint8_t *inend = *inpos + inlen;
+       char hex[3];
+
+       memset(hex, 0, sizeof(hex));
+
+       if (flags & FLAG_LENGTH_BYTE) {
+               int len = 0;
+               uint8_t *ip;
+
+               ip = *inpos;
+               while(ip < inend) {
+                       if (*ip == ',') {
+                               ip++;
+                               if (!(flags & FLAG_IGNORE_COMMAS))
+                                       break;
+
+                               continue;
+                       }
+                       len++;
+                       ip++;
+               }
+               CHECK_SPACE(1);
+               **outpos = (len / 2);
+               *outpos += 1;
+       }
+
+       while(*inpos < inend) {
+               if (**inpos == ',') {
+                       *inpos += 1;
+                       if (!(flags & FLAG_IGNORE_COMMAS))
+                               break;
+
+                       continue;
+               }
+
+               CHECK_SPACE(1);
+               CHECK_AVAIL(2);
+               memcpy(hex, *inpos, 2);
+               *inpos += 2;
+
+               **outpos = strtoul(hex, NULL, 16);
+               *outpos += 1;
+       }
+
+       return *outpos - buf_out;
+}

 
 static void hmlan_format_out(uint8_t *buf, int buf_len, void *data)
 {
 
 static void hmlan_format_out(uint8_t *buf, int buf_len, void *data)
 {

-       char out[1024];
-       char *pos;
+       uint8_t out[1024];
+       uint8_t *outpos;
+       uint8_t *inpos;

        int fd = *((int*)data);
        int fd = *((int*)data);

-       int len;
-       int i;

 
        if (buf_len < 1)
                return;
 
        memset(out, 0, sizeof(out));
 
        if (buf_len < 1)
                return;
 
        memset(out, 0, sizeof(out));

-       pos = out;
+       outpos = out;
+       inpos = buf;

 
 

-       *pos++ = buf[0];
+       format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, 0);

        switch(buf[0]) {
                case 'H':
                        if (impersonate_hmlanif) {
        switch(buf[0]) {
                case 'H':
                        if (impersonate_hmlanif) {


@@ -62,147 +187,113 @@ static void hmlan_format_out(uint8_t *buf, int buf_len, void *data)
                                buf[6] = 'A';
                                buf[7] = 'N';
                        }
                                buf[6] = 'A';
                                buf[7] = 'N';
                        }

-                       len = buf[1];
-                       for (i = 2; i < len + 2; i++) {
-                               *pos++=buf[i];
-                       }
-                       snprintf(pos, 7, ",%02X%02X,", buf[i], buf[i+1]);
-                       pos += 6;
-
-                       i += 2;
-                       len = buf[i]+i+1;
-                       i++;
-                       for (; i < len; i++) {
-                               *pos++=buf[i];
-                       }
-                       *pos++=',';
-                       len = i+12;
-                       for (; i < len; i++) {
-                               snprintf(pos, 3, "%02X", buf[i]);
-                               pos += 2;
-
-                               switch(len-i) {
-                                       case 10:
-                                       case 7:
-                                       case 3:
-                                               *pos++=',';
-                                               break;
-                                       default:
-                                               break;
-                               }
-                       }
+                       format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0, FLAG_LENGTH_BYTE);
+                       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);

 
                        break;
                case 'E':
 
                        break;
                case 'E':

-                       len = 13 + buf[13];
-                       for (i = 0; i < len; i++) {
-                               if (i != 12) {
-                                       snprintf(pos, 3, "%02X", buf[i+1]);
-                                       pos += 2;
-                               }
-                               switch(i) {
-                                       case 2:
-                                       case 4:
-                                       case 8:
-                                       case 9:
-                                       case 11:
-                                               *pos++=',';
-                                               break;
-                                       default:
-                                               break;
-                               }
-                       }
+                       format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 3, FLAG_FORMAT_HEX);
+                       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)), 4, 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);
+                       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_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_LENGTH_BYTE | FLAG_NL);
+

                        break;
                case 'R':
                        break;
                case 'R':

-                       len = 14 + buf[14];
-                       for (i = 0; i < len; i++) {
-                               if (i != 13) {
-                                       snprintf(pos, 3, "%02X", buf[i+1]);
-                                       pos += 2;
-                               }
-                               switch(i) {
-                                       case 3:
-                                       case 5:
-                                       case 9:
-                                       case 10:
-                                       case 12:
-                                               *pos++=',';
-                                               break;
-                                       default:
-                                               break;
-                               }
-                       }
+                       format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 4, FLAG_FORMAT_HEX);
+                       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)), 4, 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);
+                       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_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_LENGTH_BYTE | FLAG_NL);
+

                        break;
                case 'I':
                        break;
                case 'I':

-                       //HM> 0x0000: 49 00 00 00 00 55 53 42 2d 49 46 03 bc 0a 4a 45   I....USB-IF...JE
-                       //HM> 0x0010: 51 30 35 33 35 31 32 32 1d b1 55 68 ea 13 00 14   Q0535122..Uh....
-                       //HM> 0x0020: 9f a6 00 03 00 00 00 00 00 00 00 00 00 00 00 00   ................
-                       //HM> 0x0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................ 
+                       format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX);
+                       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);
+                       format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_NL);
+
+                       break;

                default:
                default:

-                       for (i = 1; i < buf_len; i++) {
-                               snprintf(pos, 3, "%02X", buf[i]);
-                               pos += 2;
-                       }
+                       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;
        }
                        hexdump(buf, buf_len, "Unknown> ");
                        break;
        }

-       *pos++='\r';
-       *pos++='\n';
-       write(fd, out, pos-out);
+       write(fd, out, outpos-out);
+       if (debug)
+               fprintf(stderr, "LAN < %s\n", out);

 }
 
 static int hmlan_parse_in(int fd, void *data)
 {
        struct hmcfgusb_dev *dev = data;
 }
 
 static int hmlan_parse_in(int fd, void *data)
 {
        struct hmcfgusb_dev *dev = data;

-       unsigned char buf[1024];
-       unsigned char send_buf[0x40]; //FIXME!!!
-       char tmp[3];
+       uint8_t buf[1025];
+       uint8_t out[0x40]; //FIXME!!!
+       uint8_t *outpos;
+       uint8_t *inpos;

        int i;
        int i;

+       int last;

        int r;
 
        int r;
 

-       r = read(fd, buf, sizeof(buf));
+       memset(buf, 0, sizeof(buf));
+
+       r = read(fd, buf, sizeof(buf)-1);

        if (r > 0) {
        if (r > 0) {

-               int cnt;
+               uint8_t *inend = buf + r;

 
 

-               memset(send_buf, 0, sizeof(send_buf));
-               for (i = 0; i < r; i++) {
-                       if ((buf[i] == 0x0a) ||
-                                       (buf[i] == 0x0d)) {
-                               r = i;
-                               break;
+               inpos = buf;
+
+               if (debug)
+                       fprintf(stderr, "LAN > %s\n", buf);
+
+               while (inpos < inend) {
+                       uint8_t *instart = inpos;
+
+                       if ((*inpos == '\r') || (*inpos == '\n')) {
+                               inpos++;
+                               continue;

                        }
                        }

-               }
+                       
+                       outpos = out;
+
+                       last = inend - inpos;

 
 

-               send_buf[0] = buf[0];
-
-               cnt = 0;
-               for (i = 1; i < r; i++) {
-                       if (buf[i] == ',') {
-                               switch (buf[0]) {
-                                       case 'S':
-                                               if (cnt == 4) {
-                                                       /* Add msg length */
-                                                       memmove(buf+i+2, buf+i+1, r-(i+1));
-                                                       snprintf(tmp, 3, "%02X", (int)((r-(i+1))/2));
-                                                       memcpy(buf+i, tmp, 2);
-                                                       r++;
-                                                       break;
-                                               }
-                                       default:
-                                               memmove(buf+i, buf+i+1, r-(i+1));
-                                               r--;
-                                               break;
+                       for (i = 0; i < last; i++) {
+                               if ((inpos[i] == '\r') || (inpos[i] == '\n')) {
+                                       last = i;
+                                       break;

                                }
                                }

-                               cnt++;

                        }
                        }

-               }

 
 

-               memset(tmp, 0, sizeof(tmp));
-               for (i = 1; i < r; i+=2) {
-                       memcpy(tmp, buf + i, 2);
-                       send_buf[1+(i/2)] = strtoul(tmp, NULL, 16);
+                       if (last == 0)
+                               continue;
+
+                       memset(out, 0, sizeof(out));
+                       *outpos++ = *inpos++;
+
+                       switch(buf[0]) {
+                               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;
+                               default:
+                                       parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), FLAG_IGNORE_COMMAS);
+                                       break;
+                       }
+
+                       hmcfgusb_send(dev, out, sizeof(out), 1);

                }
                }

-               hmcfgusb_send(dev, send_buf, 1+(i/2), 1);

        } else if (r < 0) {
                perror("read");
                return r;
        } else if (r < 0) {
                perror("read");
                return r;


@@ -218,6 +309,8 @@ static int comm(int fd_in, int fd_out, int master_socket)
        struct hmcfgusb_dev *dev;
        int quit = 0;
 
        struct hmcfgusb_dev *dev;
        int quit = 0;
 

+       hmcfgusb_set_debug(debug);
+

        dev = hmcfgusb_init(hmlan_format_out, &fd_out);
        if (!dev) {
                fprintf(stderr, "Can't initialize HM-CFG-USB!\n");
        dev = hmcfgusb_init(hmlan_format_out, &fd_out);
        if (!dev) {
                fprintf(stderr, "Can't initialize HM-CFG-USB!\n");


@@ -270,11 +363,23 @@ static int comm(int fd_in, int fd_out, int master_socket)
        return 1;
 }
 
        return 1;
 }
 

-static int socket_server(int port)
+static int socket_server(int port, int daemon)

 {
        struct sockaddr_in sin;
        int sock;
        int n;
 {
        struct sockaddr_in sin;
        int sock;
        int n;

+       pid_t pid;
+
+       if (daemon) {
+               pid = fork();
+               if (pid > 0) {
+                       printf("Daemon with PID %u started!\n", pid);
+                       exit(EXIT_SUCCESS);
+               } else if (pid < 0) {
+                       perror("fork");
+                       exit(EXIT_FAILURE);
+               }
+       }

 
        impersonate_hmlanif = 1;
 
 
        impersonate_hmlanif = 1;
 


@@ -309,6 +414,7 @@ static int socket_server(int port)
                struct sockaddr_in csin;
                socklen_t csinlen;
                int client;
                struct sockaddr_in csin;
                socklen_t csinlen;
                int client;

+               in_addr_t client_addr;

 
                memset(&csin, 0, sizeof(csin));
                csinlen = sizeof(csin);
 
                memset(&csin, 0, sizeof(csin));
                csinlen = sizeof(csin);


@@ -318,14 +424,29 @@ static int socket_server(int port)
                        continue;
                }
 
                        continue;
                }
 

-               printf("Client accepted!\n");
+               /* 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));
+               }

 
                comm(client, client, sock);
 
                shutdown(client, SHUT_RDWR);
                close(client);
 
 
                comm(client, client, sock);
 
                shutdown(client, SHUT_RDWR);
                close(client);
 

-               printf("Connection closed!\n");
+               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));
+               }

 
        }
 
 
        }
 


@@ -340,8 +461,62 @@ static int interactive_server(void)
        return EXIT_SUCCESS;
 }
 
        return EXIT_SUCCESS;
 }
 

+void hmlan_syntax(char *prog)
+{
+       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-p n\tlisten on port n (default 1000)\n");
+       fprintf(stderr, "\t-v\tverbose mode\n");
+
+}
+

 int main(int argc, char **argv)
 {
 int main(int argc, char **argv)
 {

-       //return interactive_server();
-       return socket_server(1234);
+       int port = 1000;
+       int interactive = 0;
+       int daemon = 0;
+       char *ep;
+       int opt;
+
+       while((opt = getopt(argc, argv, "Ddhip:v")) != -1) {
+               switch (opt) {
+                       case 'D':
+                               debug = 1;
+                               verbose = 1;
+                               break;
+                       case 'd':
+                               daemon = 1;
+                               break;
+                       case 'i':
+                               interactive = 1;
+                               break;
+                       case 'p':
+                               port = strtoul(optarg, &ep, 10);
+                               if (*ep != '\0') {
+                                       fprintf(stderr, "Can't parse port!\n");
+                                       exit(EXIT_FAILURE);
+                               }
+                               break;
+                       case 'v':
+                               verbose = 1;
+                               break;
+                       case 'h':
+                       case ':':
+                       case '?':
+                       default:
+                               hmlan_syntax(argv[0]);
+                               exit(EXIT_FAILURE);
+                               break;
+               }
+       }
+       
+       if (interactive) {
+               return interactive_server();
+       } else {
+               return socket_server(port, daemon);
+       }

 }
 }