void data_transfer(uint32_t inst, state *s){
int U_Bit = bitCheck(inst,23); // check if UP_BIT is set high;
int P_Bit = bitCheck(inst,24); // check if P_BIT is set high;
int L_Bit = bitCheck(inst,20); // check if L bit is high;
runTransfer(s,P_Bit,U_Bit,L_Bit,inst);
}
void post(state *s,int U_Bit,int L_Bit,uint32_t inst){
int I_Bit = bitCheck(inst,25);
uint32_t offset = getOp2(s,inst,!I_Bit);
uint32_t rd = getRD(inst);
uint32_t rn = getRN(inst);
uint32_t rnValue = getContents(s,rn);
uint32_t rdValue = getContents(s,rd);
uint32_t memLoc = getContents(s,rn);
uint32_t memValue;
if(rn == 15){
memLoc = s-> PC;
memLoc += offset;
}
int type = typeofAddress(memLoc,s->Special_Memory);
if(memLoc > 16380 && type == NOT_GPIO){
printf("Error: Out of bounds memory access at address 0x%08x\n",memLoc);
return;
}
if(type != 0 && L_Bit == 0){
handleGPIOTypes(type);
return;
}else if(type != 0 && L_Bit == 1){
memValue = s->Special_Memory[type-1];
handleGPIOTypes(type);
}else{
memValue = (memLoc%4 == 0) ? s-> ARM_mem[memLoc/4] : getUnallignedWord(memLoc,s);
}
if(U_Bit == 1){
switch(L_Bit){
case(0) : writeMem(s,rdValue,memLoc); add_offset(s,rn,offset); break;
case(1) : writeReg(s,rd,memValue); add_offset(s,rn,offset); break;
default : perror("Error in post"); break;
}
}else{
switch(L_Bit){
case(0) : writeMem(s,rdValue,memLoc); subtract_offset(s,rn,offset); break;
case(1) : writeReg(s,rd,memValue); add_offset(s,rn,offset); break;
default : perror("Error in post"); break;
}
}
}
// Main program
int main(int argc, char** argv)
{
// Parse arguments
int task = 0;
if (argc < 2) {
usage(argv[0]);
return 2;
}
// Interface number
DWORD ifSelect = 0;
// Task
if (argc >= 2) {
if (strncmp(argv[1], "if", 2) == 0) {
task = TASK_LIST_INTERFACES;
}
else if (strncmp(argv[1], "scan", 4) == 0) {
task = TASK_SCAN_NETWORKS;
}
else if (strncmp(argv[1], "list", 4) == 0) {
task = TASK_LIST_NETWORKS;
}
else if (strncmp(argv[1], "query", 5) == 0) {
task = TASK_SCAN_NETWORKS | TASK_LIST_NETWORKS;
}
}
// Interface
if (argc >= 3) {
sscanf(argv[2], "%d", &ifSelect);
}
// Setup
HANDLE whandle = getWlanHandle();
std::string input;
if (whandle == NULL) {
printf("Error: Failed to open wlan handle.\n");
return 1;
}
// Print usage and exit
if (task == TASK_USAGE) {
usage(argv[0]);
return 2;
}
// Get interfaces
PWLAN_INTERFACE_INFO_LIST ifList = NULL;
ifList = getWlanInterfaces(whandle);
if (ifList == NULL) {
printf("Error: Failed to find wlan interfaces.\n");
return 1;
}
// Print interfaces and exit
if (bitCheck(task, TASK_LIST_INTERFACES)) {
for (DWORD i = 0; i < ifList->dwNumberOfItems; i++) {
PWLAN_INTERFACE_INFO info = (WLAN_INTERFACE_INFO *)&ifList->InterfaceInfo[i];
printf("% 2d ", i);
for (int j = 0; j < 256 && info->strInterfaceDescription[j] != 0; j++) {
printf("%c", (unsigned char) info->strInterfaceDescription[j]);
}
printf("\n");
}
WlanFreeMemory(ifList);
return 0;
}
// Select the wlan interface
GUID ifGuid;
if (ifList->dwNumberOfItems == 0) {
printf("Error: No wlan interfaces exist.\n");
return 1;
}
else {
if (ifSelect >= ifList->dwNumberOfItems) {
//printf("Warning: Interface %d does not exist. Defaulting to interface 0.\n", ifSelect);
ifSelect = 0;
}
ifGuid = ((WLAN_INTERFACE_INFO *)&ifList->InterfaceInfo[ifSelect])->InterfaceGuid;
}
WlanFreeMemory(ifList);
if (bitCheck(task, TASK_LIST_NETWORKS)) {
// List available networks
std::vector<NetworkInfo> networks = getWifiNetworks(whandle, ifGuid);
for (auto itr = networks.begin(); itr != networks.end(); itr++) {
// Rssi
printf("% 4d ", (*itr).rssi);
// Quality
printf("% 4d ", (*itr).quality);
// Bssid
for (int i = 0; i < 6; i++) printf("%02x", (*itr).bssid[i]) && (i<5) && printf(":");
printf(" ");
// Ssid
for (int i = 0; i < 32; i++) printf("%c", (*itr).ssid[i]);
printf("\n");
}
}
if (bitCheck(task, TASK_SCAN_NETWORKS)) {
// Scan for network
scanWifiNetworks(whandle, ifGuid);
}
return 0;
}