Atmosphere/stratosphere/loader/source/ldr_content_management.cpp
2018-07-29 16:45:29 -07:00

163 lines
4.6 KiB
C++

#include <switch.h>
#include <string.h>
#include <vector>
#include <algorithm>
#include "ldr_registration.hpp"
#include "ldr_content_management.hpp"
static FsFileSystem g_CodeFileSystem = {0};
static std::vector<u64> g_created_titles;
static bool g_has_initialized_fs_dev = false;
Result ContentManagement::MountCode(u64 tid, FsStorageId sid) {
char path[FS_MAX_PATH] = {0};
Result rc;
/* We defer SD card mounting, so if relevant ensure it is mounted. */
if (!g_has_initialized_fs_dev) {
TryMountSdCard();
}
if (kernelAbove200() && g_has_initialized_fs_dev && R_SUCCEEDED(MountCodeNspOnSd(tid))) {
return 0x0;
}
if (R_FAILED(rc = ResolveContentPath(path, tid, sid))) {
return rc;
}
/* Fix up path. */
for (unsigned int i = 0; i < FS_MAX_PATH && path[i] != '\x00'; i++) {
if (path[i] == '\\') {
path[i] = '/';
}
}
/* Always re-initialize fsp-ldr, in case it's closed */
if (R_FAILED(rc = fsldrInitialize())) {
return rc;
}
if (R_FAILED(rc = fsldrOpenCodeFileSystem(tid, path, &g_CodeFileSystem))) {
fsldrExit();
return rc;
}
fsdevMountDevice("code", g_CodeFileSystem);
fsldrExit();
return rc;
}
Result ContentManagement::UnmountCode() {
fsdevUnmountDevice("code");
return 0;
}
Result ContentManagement::MountCodeNspOnSd(u64 tid) {
char path[FS_MAX_PATH+1] = {0};
snprintf(path, FS_MAX_PATH, "@Sdcard:/atmosphere/titles/%016lx/exefs.nsp", tid);
Result rc = fsOpenFileSystemWithId(&g_CodeFileSystem, 0, FsFileSystemType_ApplicationPackage, path);
if (R_SUCCEEDED(rc)) {
fsdevMountDevice("code", g_CodeFileSystem);
}
return rc;
}
Result ContentManagement::MountCodeForTidSid(Registration::TidSid *tid_sid) {
return MountCode(tid_sid->title_id, tid_sid->storage_id);
}
Result ContentManagement::ResolveContentPath(char *out_path, u64 tid, FsStorageId sid) {
Result rc;
LrRegisteredLocationResolver reg;
LrLocationResolver lr;
char path[FS_MAX_PATH] = {0};
/* Try to get the path from the registered resolver. */
if (R_FAILED(rc = lrOpenRegisteredLocationResolver(&reg))) {
return rc;
}
if (R_SUCCEEDED(rc = lrRegLrResolveProgramPath(&reg, tid, path))) {
strncpy(out_path, path, FS_MAX_PATH);
} else if (rc != 0x408) {
return rc;
}
serviceClose(&reg.s);
if (R_SUCCEEDED(rc)) {
return rc;
}
/* If getting the path from the registered resolver fails, fall back to the normal resolver. */
if (R_FAILED(rc = lrOpenLocationResolver(sid, &lr))) {
return rc;
}
if (R_SUCCEEDED(rc = lrLrResolveProgramPath(&lr, tid, path))) {
strncpy(out_path, path, FS_MAX_PATH);
}
serviceClose(&lr.s);
return rc;
}
Result ContentManagement::ResolveContentPathForTidSid(char *out_path, Registration::TidSid *tid_sid) {
return ResolveContentPath(out_path, tid_sid->title_id, tid_sid->storage_id);
}
Result ContentManagement::RedirectContentPath(const char *path, u64 tid, FsStorageId sid) {
Result rc;
LrLocationResolver lr;
if (R_FAILED(rc = lrOpenLocationResolver(sid, &lr))) {
return rc;
}
rc = lrLrRedirectProgramPath(&lr, tid, path);
serviceClose(&lr.s);
return rc;
}
Result ContentManagement::RedirectContentPathForTidSid(const char *path, Registration::TidSid *tid_sid) {
return RedirectContentPath(path, tid_sid->title_id, tid_sid->storage_id);
}
bool ContentManagement::HasCreatedTitle(u64 tid) {
return std::find(g_created_titles.begin(), g_created_titles.end(), tid) != g_created_titles.end();
}
void ContentManagement::SetCreatedTitle(u64 tid) {
if (!HasCreatedTitle(tid)) {
g_created_titles.push_back(tid);
}
}
void ContentManagement::TryMountSdCard() {
/* Mount SD card, if psc, bus, and pcv have been created. */
if (!g_has_initialized_fs_dev && HasCreatedTitle(0x0100000000000021) && HasCreatedTitle(0x010000000000000A) && HasCreatedTitle(0x010000000000001A)) {
Handle tmp_hnd = 0;
static const char * const required_active_services[] = {"pcv", "gpio", "pinmux", "psc:c"};
for (unsigned int i = 0; i < sizeof(required_active_services) / sizeof(required_active_services[0]); i++) {
if (R_FAILED(smGetServiceOriginal(&tmp_hnd, smEncodeName(required_active_services[i])))) {
return;
} else {
svcCloseHandle(tmp_hnd);
}
}
if (R_SUCCEEDED(fsdevMountSdmc())) {
g_has_initialized_fs_dev = true;
}
}
}