X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/hmcfgusb/blobdiff_plain/9db2e455127fa181c68cf093d23fe0c1ee142925..e75295bb20a25fadb04bf8d8162245de85ba1044:/hmland.c diff --git a/hmland.c b/hmland.c index 75d4e14..f807164 100644 --- a/hmland.c +++ b/hmland.c @@ -29,118 +29,215 @@ #include #include #include +#include +#include +#include +#include #include #include "hexdump.h" #include "hmcfgusb.h" -void hmlan_format_out(uint8_t *buf, int buf_len, void *data) +static int impersonate_hmlanif = 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) { - int len; + 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) +{ + uint8_t out[1024]; + uint8_t *outpos; + uint8_t *inpos; + int fd = *((int*)data); + if (buf_len < 1) return; - //FIXME: Buffer here and write to fd_out - printf("%c", buf[0]); + memset(out, 0, sizeof(out)); + outpos = out; + inpos = buf; + + format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, 0); switch(buf[0]) { case 'H': - buf[5]='L'; - buf[6]='A'; - buf[7]='N'; - len = buf[1]; - for (i = 2; i < len + 2; i++) { - printf("%c", buf[i]); - } - printf(",%02X%02X,", buf[i], - buf[i+1]); - i+=2; - len = buf[i]+i+1; - i++; - for (; i < len; i++) { - printf("%c", buf[i]); - } - printf(","); - len = i+12; - for (; i < len; i++) { - printf("%02X", buf[i]); - switch(len-i) { - case 10: - case 7: - case 3: - printf(","); - break; - default: - break; - } + if (impersonate_hmlanif) { + buf[5] = 'L'; + buf[6] = 'A'; + buf[7] = 'N'; } + 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': - len = 13 + buf[13]; - for (i = 0; i < len; i++) { - if (i != 12) - printf("%02X", buf[1+i]); - switch(i) { - case 2: - case 4: - case 8: - case 9: - case 11: - printf(","); - 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': - len = 14 + buf[14]; - for (i = 0; i < len; i++) { - if (i != 13) - printf("%02X", buf[1+i]); - switch(i) { - case 3: - case 5: - case 9: - case 10: - case 12: - printf(","); - 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': - //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: - for (i = 1; i < buf_len; i++) - printf("%02X", buf[i]); + 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; } - printf("\n"); + write(fd, out, outpos-out); } -void hmlan_parse_in(int fd, void *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[1024]; + uint8_t out[0x40]; //FIXME!!! + uint8_t *outpos; + uint8_t *inpos; int i; int r; r = read(fd, buf, sizeof(buf)); if (r > 0) { - int cnt; - - memset(send_buf, 0, sizeof(send_buf)); + memset(out, 0, sizeof(out)); for (i = 0; i < r; i++) { if ((buf[i] == 0x0a) || (buf[i] == 0x0d)) { @@ -149,55 +246,61 @@ void hmlan_parse_in(int fd, void *data) } } - 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; - } - cnt++; - } - } + if (r == 0) + return 1; + + out[0] = buf[0]; + outpos = out+1; + inpos = buf+1; - 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); + switch(buf[0]) { + case 'S': + parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0); + parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0); + parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0); + parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0); + parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0); + parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), FLAG_LENGTH_BYTE); + break; + default: + parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), FLAG_IGNORE_COMMAS); + break; } - hmcfgusb_send(dev, send_buf, 1+(i/2), 1); + + hmcfgusb_send(dev, out, outpos-out, 1); } else if (r < 0) { perror("read"); + return r; + } else { + return 0; } + + return 1; } -int main(int argc, char **argv) +static int comm(int fd_in, int fd_out, int master_socket) { struct hmcfgusb_dev *dev; int quit = 0; - dev = hmcfgusb_init(hmlan_format_out, NULL); + dev = hmcfgusb_init(hmlan_format_out, &fd_out); if (!dev) { fprintf(stderr, "Can't initialize HM-CFG-USB!\n"); - exit(EXIT_FAILURE); + return 0; } - if (!hmcfgusb_add_pfd(dev, STDIN_FILENO, POLLIN)) { - fprintf(stderr, "Can't add stdin to pollfd!\n"); - exit(EXIT_FAILURE); + if (!hmcfgusb_add_pfd(dev, fd_in, POLLIN)) { + fprintf(stderr, "Can't add client to pollfd!\n"); + hmcfgusb_close(dev); + return 0; + } + + if (master_socket >= 0) { + if (!hmcfgusb_add_pfd(dev, master_socket, POLLIN)) { + fprintf(stderr, "Can't add master_socket to pollfd!\n"); + hmcfgusb_close(dev); + return 0; + } } hmcfgusb_send(dev, (unsigned char*)"K", 1, 1); @@ -207,7 +310,19 @@ int main(int argc, char **argv) fd = hmcfgusb_poll(dev, 3600); if (fd >= 0) { - hmlan_parse_in(fd, dev); + if (fd == master_socket) { + int client; + + client = accept(master_socket, NULL, 0); + if (client >= 0) { + shutdown(client, SHUT_RDWR); + close(client); + } + } else { + if (hmlan_parse_in(fd, dev) <= 0) { + quit = 1; + } + } } else if (fd == -1) { if (errno) { perror("hmcfgusb_poll"); @@ -216,7 +331,82 @@ int main(int argc, char **argv) } } - libusb_close(NULL); + hmcfgusb_close(dev); + return 1; +} + +static int socket_server(int port) +{ + struct sockaddr_in sin; + int sock; + int n; + + impersonate_hmlanif = 1; + + sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); + if (sock == -1) { + perror("Can't open socket"); + return EXIT_FAILURE; + } + + n = 1; + if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n)) == -1) { + perror("Can't set socket options"); + return EXIT_FAILURE; + } + + memset(&sin, 0, sizeof(sin)); + sin.sin_family = AF_INET; + sin.sin_port = htons(port); + sin.sin_addr.s_addr = htonl(INADDR_ANY); + + if (bind(sock, (struct sockaddr*)&sin, sizeof(sin)) == -1) { + perror("Can't bind socket"); + return EXIT_FAILURE; + } + + if (listen(sock, 1) == -1) { + perror("Can't listen on socket"); + return EXIT_FAILURE; + } + + while(1) { + struct sockaddr_in csin; + socklen_t csinlen; + int client; + + memset(&csin, 0, sizeof(csin)); + csinlen = sizeof(csin); + client = accept(sock, (struct sockaddr*)&csin, &csinlen); + if (client == -1) { + perror("Couldn't accept client"); + continue; + } + + printf("Client accepted!\n"); + + comm(client, client, sock); + + shutdown(client, SHUT_RDWR); + close(client); + + printf("Connection closed!\n"); + + } + + return EXIT_SUCCESS; +} + +static int interactive_server(void) +{ + if (!comm(STDIN_FILENO, STDOUT_FILENO, -1)) + return EXIT_FAILURE; return EXIT_SUCCESS; } + +int main(int argc, char **argv) +{ + //return interactive_server(); + return socket_server(1234); +}