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loaderparams.kernel_filename,
load_elf_strerror(kernel_size));
exit(1);
}
/* load initrd */
initrd_size = 0;
initrd_offset = 0;
if (loaderparams.initrd_filename) {
initrd_size = get_image_size(loaderparams.initrd_filename);
if (initrd_size > 0) {
initrd_offset = ROUND_UP(kernel_high, INITRD_PAGE_SIZE);
if (initrd_offset + initrd_size > loaderparams.ram_size) {
error_report(
"memory too small for initial ram disk '%s'",
loaderparams.initrd_filename);
exit(1);
}
initrd_size = load_image_targphys(
loaderparams.initrd_filename,
initrd_offset, loaderparams.ram_size - initrd_offset);
}
if (initrd_size == (target_ulong) -1) {
error_report("could not load initial ram disk '%s'",
loaderparams.initrd_filename);
exit(1);
}
}
return entry;
}
static void main_cpu_reset(void *opaque)
{
ResetData *s = (ResetData *)opaque;
CPUMIPSState *env = &s->cpu->env;
cpu_reset(CPU(s->cpu));
env->active_tc.PC = s->vector;
}
static void connect_to_mmio_server(void){
int status;
struct sockaddr_in serv_addr;
if ((client_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
printf("\n Socket creation error \n");
return;
}
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(1337);
if (inet_pton(AF_INET, "127.0.0.1", &serv_addr.sin_addr)
<= 0) {
puts(
"\n[*] bruh...");
return;
}
if ((status
= connect(client_fd, (struct sockaddr*)&serv_addr,
sizeof(serv_addr))) < 0) {
puts("\n[-] Connection to the MMIO MITM interface failed...");
puts("[*] Is the MMIO MITM script even running?!?!");
exit(-1); // We need the interface to be up
return;
}
}
static int read_mmio_mitm(int address){
int valread, ret_val = 0;
char buffer[128] = { 0 };
snprintf(buffer, sizeof(buffer), "r0x%x", address);
send(client_fd, buffer, strlen(buffer), 0);
memset(buffer, 0, sizeof(buffer));
valread = read(client_fd, buffer, sizeof(buffer) - 1);
if (valread){
ret_val = strtol(buffer, NULL, 16);
}
return ret_val;
}
static int write_mmio_mitm(int address, int value){
int valread, ret_val = 0;
char buffer[128] = { 0 };
snprintf(buffer, sizeof(buffer), "w0x%x 0x%x", address, value);
send(client_fd, buffer, strlen(buffer), 0);
memset(buffer, 0, sizeof(buffer));
valread = read(client_fd, buffer, sizeof(buffer) - 1);
if (valread){
ret_val = atoi(buffer);
}
return ret_val;
}
// MMIO Callbacks for GPIO
static uint64_t gpio_mmio_read(void *opaque, hwaddr addr, unsigned size)
{
int base_addr = 0x18040000;
int ret_val = 0;
ret_val = read_mmio_mitm(base_addr + addr);