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Cleanup old file

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Chris 2026-02-08 15:20:47 +01:00
parent a053e7ccc2
commit 3722fe33f8
2 changed files with 0 additions and 65 deletions
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brewos.iso
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65
icmp.c
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@ -1,65 +0,0 @@
#include "net_defs.h"
#include "cmd.h"
#include "memory_manager.h"
static volatile bool ping_reply_received = false;
static uint16_t ping_id_counter = 0;
void icmp_handle_packet(ipv4_address_t src, void *data, uint16_t len) {
icmp_header_t *icmp = (icmp_header_t *)data;
if (icmp->type == 0) { // Echo Reply
ping_reply_received = true;
char buf[64];
// Simple output
cmd_write("Reply from ");
cmd_write_int(src.bytes[0]); cmd_write(".");
cmd_write_int(src.bytes[1]); cmd_write(".");
cmd_write_int(src.bytes[2]); cmd_write(".");
cmd_write_int(src.bytes[3]);
cmd_write(": bytes=");
cmd_write_int(len - sizeof(icmp_header_t));
cmd_write(" seq=");
cmd_write_int(ntohs(icmp->sequence));
cmd_write("\n");
}
}
void cli_cmd_ping(char *args) {
if (!args || !*args) {
cmd_write("Usage: ping <ip>\n");
return;
}
// Parse IP (Simplified)
ipv4_address_t dest;
int ip_parts[4];
const char *p = args;
for(int i=0; i<4; i++) {
ip_parts[i] = 0;
while(*p >= '0' && *p <= '9') {
ip_parts[i] = ip_parts[i]*10 + (*p - '0');
p++;
}
if(*p == '.') p++;
dest.bytes[i] = (uint8_t)ip_parts[i];
}
cmd_write("Pinging...\n");
for (int i = 0; i < 4; i++) {
icmp_header_t icmp;
icmp.type = 8; // Echo Request
icmp.code = 0;
icmp.id = htons(++ping_id_counter);
icmp.sequence = htons(i + 1);
icmp.checksum = 0;
icmp.checksum = net_checksum(&icmp, sizeof(icmp_header_t));
ping_reply_received = false;
ip_send_packet(dest, IP_PROTO_ICMP, &icmp, sizeof(icmp_header_t));
// Simple busy wait for ~1 second (assuming loop speed)
for(volatile int w=0; w<100000000 && !ping_reply_received; w++);
}
}