From: Jacob Potter Date: Tue, 16 Dec 2008 18:17:34 +0000 (-0500) Subject: remove obsolete watcher application X-Git-Url: http://git.joshuawise.com/netwatch.git/commitdiff_plain/02d26371b0df85b3ee3f3aa95a1f5b3394b7c8a0?hp=-c remove obsolete watcher application --- 02d26371b0df85b3ee3f3aa95a1f5b3394b7c8a0 diff --git a/watcher/.gitignore b/watcher/.gitignore deleted file mode 100644 index 627c0f0..0000000 --- a/watcher/.gitignore +++ /dev/null @@ -1 +0,0 @@ -watcher diff --git a/watcher/Makefile b/watcher/Makefile deleted file mode 100644 index cfcad73..0000000 --- a/watcher/Makefile +++ /dev/null @@ -1,2 +0,0 @@ -watcher: watcher.c - gcc -Wall -Werror -pedantic -std=gnu99 watcher.c -o watcher -lpcap diff --git a/watcher/watcher.c b/watcher/watcher.c deleted file mode 100644 index 65d7996..0000000 --- a/watcher/watcher.c +++ /dev/null @@ -1,219 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include -#include - -char errbuf[PCAP_ERRBUF_SIZE]; - -char buf[0x8000]; - -typedef struct netwatch_frame { - char dest_mac[6]; - char src_mac[6]; - unsigned short whatthefuck; - unsigned short ethertype; - unsigned short buf_offset; - unsigned short buf_window; - char data[]; -} netwatch_frame; - -pcap_t * pcap; - -void out(char *buf, unsigned short start) -{ - int y,x; - buf += start; - printf("\x1B[H"); - for (y = 0; y < 25; y++) - { - printf("\x1B[%d;%df",y+1,1); - for (x = 0; x < 80; x++) - { - unsigned char c, col; - static unsigned char last = 0xFF; - - c = *(buf++); - col = *(buf++); - - if (col != last) - { - printf("\x1B[0m\x1B["); - switch (col & 0x7) - { - case 0: printf("30;"); break; - case 1: printf("34;"); break; - case 2: printf("32;"); break; - case 3: printf("36;"); break; - case 4: printf("31;"); break; - case 5: printf("35;"); break; - case 6: printf("33;"); break; - case 7: printf("37;"); break; - } - if (col & 0x8) - printf("m\x1B[1;"); - if (col & 0x80) - printf("m\x1B[5;"); - switch ((col >> 4) & 0x7) - { - case 0: printf("40"); break; - case 1: printf("44"); break; - case 2: printf("42"); break; - case 3: printf("46"); break; - case 4: printf("41"); break; - case 5: printf("45"); break; - case 6: printf("43"); break; - case 7: printf("47"); break; - } - printf("m"); - } - last = col; - if (c == 0) - c = ' '; - printf("%c", c); - fflush(stdout); - } - } -} - - - - -#include -#include -#include -#include -#include -#include -#include - -typedef struct frame { - char header[14]; - unsigned short datalen; - unsigned char cmd; - char data[]; -} frame; - -int sendsock; - -void send_text(char *d, int len) -{ - int datalen = sizeof(frame) + len; - frame * f = alloca(datalen + 1); - struct sockaddr_ll addr; - - memcpy(f->header, "\x00\xb0\xd0\x97\xbc\xac\x00\x03\x93\x87\x84\x8C\x13\x38", 14); - f->datalen = len; - f->cmd = 0x42; - memcpy(f->data, d, len); - - addr.sll_family = AF_PACKET; - addr.sll_ifindex = 2; - addr.sll_halen = 0; - - if (sendto(sendsock, f, datalen, 0, (struct sockaddr *)&addr, sizeof(addr)) < datalen) - perror("sendto"); -} - -void send_reboot() { - frame f; - struct sockaddr_ll addr; - - memcpy(f.header, "\x00\xb0\xd0\x97\xbc\xac\x00\x03\x93\x87\x84\x8C\x13\x38", 14); - f.datalen = 0; - f.cmd = 0xFE; - addr.sll_family = AF_PACKET; - addr.sll_ifindex = 2; - addr.sll_halen = 0; - - if (sendto(sendsock, &f, sizeof(frame), 0, (struct sockaddr *)&addr, sizeof(addr)) < sizeof(frame)) - perror("sendto"); -} - -void handler (u_char * user, const struct pcap_pkthdr *h, const u_char *bytes) -{ - netwatch_frame * f = (netwatch_frame *) bytes; - static int i = 0; - - int data_len = h->caplen - sizeof(netwatch_frame) - 4; - - if (data_len < 0) return; - - if (ntohs(f->ethertype) != 0x1337) return; - - if (data_len > sizeof(buf)) return; - - if (f->buf_offset + data_len > sizeof(buf)) - { - int wrap_pos = sizeof(buf) - f->buf_offset; - memcpy(buf + f->buf_offset, f->data, wrap_pos); - memcpy(buf, f->data + wrap_pos, data_len - wrap_pos); - } else { - memcpy(buf + f->buf_offset, f->data, data_len); - } - - int c = getchar(); - if (c > 0) { - if (c == 3) - pcap_breakloop(pcap); - if (c == '\r') c = '\n'; - if (c == 127) c = '\b'; - if (c == 0x1B) - { - /* Escape */ - c = getchar(); - if (c == '[') - { - c = getchar(); - if (c == 'A') - c = 0x82; - if (c == 'B') - c = 0x83; - if (c == 'D') - c = 0x84; - if (c == 'C') - c = 0x85; - if (c == '4') - send_reboot(); - } - } - - char ch = c; - send_text(&ch, 1); - } - - if (!(i++ % 2)) - out(buf, f->buf_window); -} - -int main() { - pcap = pcap_open_live(NULL, 65535, 1, 0, errbuf); - - if (!pcap) - { - printf("pcap_open_live: %s\n", errbuf); - exit(1); - } - sendsock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); - if(sendsock < 0) - { - perror("socket"); - exit(1); - } - fcntl(0, F_SETFL, O_NONBLOCK); - printf("\x1b[H\x1b[J\x1b[5C"); - - struct termios t, t_orig; - tcgetattr(0, &t); - tcgetattr(0, &t_orig); - cfmakeraw(&t); - tcsetattr(0, 0, &t); - - pcap_loop(pcap, -1, handler, NULL); - - tcsetattr(0, 0, &t_orig); - return 0; -}