X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/hmcfgusb/blobdiff_plain/e09806b632a86c2b18fc4b129e10ab23e898b0dc..fbbbfa37bd5adae5eabd94e6db96be584998ffd6:/hmland.c diff --git a/hmland.c b/hmland.c index f963e2b..a9d9670 100644 --- a/hmland.c +++ b/hmland.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include #include @@ -49,17 +50,38 @@ static int impersonate_hmlanif = 0; static int debug = 0; static int verbose = 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 FLAG_COMMA_BEFORE (1<<2) #define FLAG_COMMA_AFTER (1<<3) #define FLAG_NL (1<<4) #define FLAG_IGNORE_COMMAS (1<<5) -#define FLAG_PERIODIC_WAKEUP (1<<6) #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 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', @@ -240,8 +262,42 @@ static int hmlan_format_out(uint8_t *buf, int buf_len, void *data) 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; + } + + if (verbose) { + int i; + + print_timestamp(stdout); + 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) { @@ -249,6 +305,38 @@ static int hmlan_format_out(uint8_t *buf, int buf_len, void *data) return 0; } + /* Send all queued packets */ + if (wait_for_h) { + struct queued_rx *curr_rx = qrx; + struct queued_rx *last_rx; + + while (curr_rx) { + if (verbose) { + int i; + + print_timestamp(stdout); + printf("LAN < "); + for (i = 0; i < curr_rx->len-2; i++) + printf("%c", curr_rx->rx[i]); + printf("\n"); + } + + 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; } @@ -271,9 +359,6 @@ static int hmlan_parse_in(int fd, void *data) inpos = buf; - if (debug) - fprintf(stderr, "\nLAN > %s", buf); - while (inpos < inend) { uint8_t *instart = inpos; @@ -296,6 +381,14 @@ static int hmlan_parse_in(int fd, void *data) if (last == 0) continue; + if (verbose) { + print_timestamp(stdout); + printf("LAN > "); + for (i = 0; i < last; i++) + printf("%c", instart[i]); + printf("\n"); + } + memset(out, 0, sizeof(out)); *outpos++ = *inpos++; @@ -308,6 +401,11 @@ static int hmlan_parse_in(int fd, void *data) 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; @@ -316,7 +414,8 @@ static int hmlan_parse_in(int fd, void *data) hmcfgusb_send(dev, out, sizeof(out), 1); } } else if (r < 0) { - perror("read"); + if (errno != ECONNRESET) + perror("read"); return r; } else { return 0; @@ -329,7 +428,6 @@ static int comm(int fd_in, int fd_out, int master_socket, int flags) { struct hmcfgusb_dev *dev; uint8_t out[0x40]; //FIXME!!! - int poll_timeout = 3600; int quit = 0; hmcfgusb_set_debug(debug); @@ -354,18 +452,16 @@ static int comm(int fd_in, int fd_out, int master_socket, int flags) } } - if (flags & FLAG_PERIODIC_WAKEUP) - poll_timeout = 1; - memset(out, 0, sizeof(out)); out[0] = 'K'; + wait_for_h = 1; hmcfgusb_send_null_frame(dev); hmcfgusb_send(dev, out, sizeof(out), 1); while(!quit) { int fd; - fd = hmcfgusb_poll(dev, poll_timeout); + fd = hmcfgusb_poll(dev, 1); /* Wakeup device/bus at least once a second */ if (fd >= 0) { if (fd == master_socket) { int client; @@ -540,6 +636,7 @@ static int socket_server(char *iface, int port, int flags) client_addr = ntohl(csin.sin_addr.s_addr); if (verbose) { + print_timestamp(stdout); printf("Client %d.%d.%d.%d connected!\n", (client_addr & 0xff000000) >> 24, (client_addr & 0x00ff0000) >> 16, @@ -553,6 +650,7 @@ static int socket_server(char *iface, int port, int flags) close(client); if (verbose) { + print_timestamp(stdout); printf("Connection to %d.%d.%d.%d closed!\n", (client_addr & 0xff000000) >> 24, (client_addr & 0x00ff0000) >> 16, @@ -584,7 +682,6 @@ void hmlan_syntax(char *prog) 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-R\twakeup the device (and USB-bus) every second (fix for e.g. Raspberry Pi)\n"); fprintf(stderr, "\t-v\tverbose mode\n"); } @@ -621,7 +718,7 @@ int main(int argc, char **argv) } break; case 'R': - flags |= FLAG_PERIODIC_WAKEUP; + fprintf(stderr, "-R is no longer needed (1s wakeup is default)\n"); break; case 'l': iface = optarg;