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Atmosphere/stratosphere/fs_mitm/source/fs_shim.c

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/*
* Copyright (c) 2018 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <switch.h>
#include "fs_shim.h"
/* Necessary evil. */
Result ipcCopyFromDomain(Handle session, u32 object_id, Service *out) {
u32* buf = (u32*)armGetTls();
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
u32 object_id;
} *raw;
raw = ipcPrepareHeader(&c, sizeof(*raw));
buf[0] = IpcCommandType_Control;
raw->magic = SFCI_MAGIC;
raw->cmd_id = 1;
raw->object_id = object_id;
Result rc = ipcDispatch(session);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct ipcCopyFromDomainResponse {
u64 magic;
u64 result;
} *raw = (struct ipcCopyFromDomainResponse*)r.Raw;
rc = raw->result;
if (R_SUCCEEDED(rc)) {
serviceCreate(out, r.Handles[0]);
}
}
return rc;
}
/* Missing fsp-srv commands. */
Result fsOpenDataStorageByCurrentProcessFwd(Service* s, FsStorage* out) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
} *raw;
raw = ipcPrepareHeader(&c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 200;
Result rc = serviceIpcDispatch(s);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct {
u64 magic;
u64 result;
} *resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc)) {
serviceCreate(&out->s, r.Handles[0]);
}
}
return rc;
}
Result fsOpenDataStorageByCurrentProcessFromDomainFwd(Service* s, u32 *out_object_id) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
} *raw;
raw = ipcPrepareHeaderForDomain(&c, sizeof(*raw), s->object_id);
raw->magic = SFCI_MAGIC;
raw->cmd_id = 200;
Result rc = serviceIpcDispatch(s);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParseForDomain(&r);
struct {
u64 magic;
u64 result;
u32 object_id;
} *resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc)) {
*out_object_id = resp->object_id;
}
}
return rc;
}
Result fsOpenDataStorageByDataId(Service* s, FsStorageId storage_id, u64 data_id, FsStorage* out) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
FsStorageId storage_id;
u64 data_id;
} *raw;
raw = ipcPrepareHeader(&c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 202;
raw->storage_id = storage_id;
raw->data_id = data_id;
Result rc = serviceIpcDispatch(s);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct {
u64 magic;
u64 result;
} *resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc)) {
serviceCreate(&out->s, r.Handles[0]);
}
}
return rc;
}
Result fsOpenDataStorageByDataIdFromDomain(Service* s, FsStorageId storage_id, u64 data_id, u32 *out_object_id) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
FsStorageId storage_id;
u64 data_id;
} *raw;
raw = ipcPrepareHeaderForDomain(&c, sizeof(*raw), s->object_id);
raw->magic = SFCI_MAGIC;
raw->cmd_id = 202;
raw->storage_id = storage_id;
raw->data_id = data_id;
Result rc = serviceIpcDispatch(s);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParseForDomain(&r);
struct {
u64 magic;
u64 result;
u32 object_id;
} *resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc)) {
*out_object_id = resp->object_id;
}
}
return rc;
}
/* Missing FS File commands. */
Result fsFileOperateRange(FsFile* f, u32 op_id, u64 off, u64 len, FsRangeInfo *out) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
u32 op_id;
u64 off;
u64 len;
} *raw;
raw = ipcPrepareHeader(&c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 5;
raw->op_id = op_id;
raw->off = off;
raw->len = len;
Result rc = serviceIpcDispatch(&f->s);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct {
u64 magic;
u64 result;
FsRangeInfo range_info;
} *resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc) && out) *out = resp->range_info;
}
return rc;
}
/* Missing FS Storage commands. */
Result fsStorageOperateRange(FsStorage* s, u32 op_id, u64 off, u64 len, FsRangeInfo *out) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
u32 op_id;
u64 off;
u64 len;
} *raw;
raw = ipcPrepareHeader(&c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 5;
raw->op_id = op_id;
raw->off = off;
raw->len = len;
Result rc = serviceIpcDispatch(&s->s);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct {
u64 magic;
u64 result;
FsRangeInfo range_info;
} *resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc) && out) *out = resp->range_info;
}
return rc;
}