This performs an ethernet sniff test. Copied from an existing ethernet sniff test and updated to work properly with the LISA, supporting output of content to the USB console. See also: http://mbed.org/users/rolf/code/ethsnif/
Fork of ethsnif by
main.cpp
- Committer:
- rolf
- Date:
- 2009-09-04
- Revision:
- 0:29e2df9de9f1
- Child:
- 1:a7a52d202638
File content as of revision 0:29e2df9de9f1:
#include "mbed.h" #include "Ethernet.h" #include "hexview.h" using namespace mbed; DigitalOut led4(LED4); Ethernet eth; /* __packed struct eth { unsigned char dst[6]; unsigned char src[6]; unsigned short type; }; void show(char *buffer, int size) { eth *e = (eth *)buffer; printf("Destination: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n", e->dst[0], e->dst[1], e->dst[2], e->dst[3], e->dst[4], e->dst[5]); printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n", e->src[0], e->src[1], e->src[2], e->src[3], e->src[4], e->src[5]); printf("Type %hd\n", eth->type); hexview(buffer, size); } */ unsigned short htons(unsigned short n) { // Host short to network shor return ((n & 0xff) << 8) | ((n & 0xff00) >> 8); // Byte swapping } void show(char *buf, int size) { printf("Destination: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n", buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]); printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n", buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]); printf("Type %hd\n", htons((short)buf[12])); hexview(buf, size); } int main() { char buffer[0x600]; int size = 0; while(1) { if((size = eth.receive()) != 0) { eth.read(buffer, size); show(buffer, size); } led4 = 1; wait(0.2); led4 = 0; wait(0.2); } }