Atmosphere/stratosphere/loader/source/ldr_registration.cpp
2018-04-19 16:14:48 -06:00

111 lines
3.3 KiB
C++

#include <switch.h>
#include <algorithm>
#include <cstdio>
#include "ldr_registration.hpp"
static Registration::List g_registration_list = {0};
static u64 g_num_registered = 1;
Registration::Process *Registration::get_free_process() {
unsigned int i;
for (i = 0; i < REGISTRATION_LIST_MAX; i++) {
if (!g_registration_list.processes[i].in_use) {
return &g_registration_list.processes[i];
}
}
return NULL;
}
Registration::Process *Registration::get_process(u64 index) {
unsigned int i;
for (i = 0; !g_registration_list.processes[i].in_use || g_registration_list.processes[i].index != index; i++) {
if (i >= REGISTRATION_LIST_MAX) {
return NULL;
}
}
return &g_registration_list.processes[i];
}
Registration::Process *Registration::get_process_by_process_id(u64 pid) {
unsigned int i;
for (i = 0; !g_registration_list.processes[i].in_use || g_registration_list.processes[i].process_id != pid; i++) {
if (i >= REGISTRATION_LIST_MAX) {
return NULL;
}
}
return &g_registration_list.processes[i];
}
bool Registration::register_tid_sid(const TidSid *tid_sid, u64 *out_index) {
Registration::Process *free_process = get_free_process();
if (free_process == NULL) {
return false;
}
/* Reset the process. */
*free_process = {0};
free_process->tid_sid = *tid_sid;
free_process->in_use = true;
free_process->index = g_num_registered++;
*out_index = free_process->index;
return true;
}
bool Registration::unregister_index(u64 index) {
Registration::Process *target_process = get_process(index);
if (target_process == NULL) {
return false;
}
/* Reset the process. */
*target_process = {0};
return true;
}
void Registration::set_process_id_and_tid_min(u64 index, u64 process_id, u64 tid_min) {
Registration::Process *target_process = get_process(index);
if (target_process == NULL) {
return;
}
target_process->process_id = process_id;
target_process->title_id_min = tid_min;
}
void Registration::add_nso_info(u64 index, u64 base_address, u64 size, const unsigned char *build_id) {
Registration::Process *target_process = get_process(index);
if (target_process == NULL) {
return;
}
for (unsigned int i = 0; i < NSO_INFO_MAX; i++) {
if (!target_process->nso_infos[i].in_use) {
target_process->nso_infos[i].info.base_address = base_address;
target_process->nso_infos[i].info.size = size;
std::copy(build_id, build_id + sizeof(target_process->nso_infos[i].info.build_id), target_process->nso_infos[i].info.build_id);
target_process->nso_infos[i].in_use = true;
return;
}
}
}
Result Registration::get_nso_infos_for_process_id(Registration::NsoInfo *out, u32 max_out, u64 process_id, u32 *num_written) {
Registration::Process *target_process = get_process_by_process_id(process_id);
if (target_process == NULL) {
return 0x1009;
}
u32 cur = 0;
if (max_out > 0) {
for (unsigned int i = 0; i < NSO_INFO_MAX && cur < max_out; i++) {
if (target_process->nso_infos[i].in_use) {
out[cur++] = target_process->nso_infos[i].info;
}
}
}
*num_written = cur;
return 0;
}