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Atmosphere/libraries/libstratosphere/include/stratosphere/sf/sf_mitm_dispatch.h

105 lines
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3.1 KiB
C

/*
* Copyright (c) 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/>.
*/
#pragma once
#include <stratosphere/sf/sf_mitm_config.hpp>
#if AMS_SF_MITM_SUPPORTED
#include <switch.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
Handle target_session;
u32 context;
SfBufferAttrs buffer_attrs;
SfBuffer buffers[8];
bool in_send_pid;
u32 in_num_objects;
const Service* in_objects[8];
u32 in_num_handles;
Handle in_handles[8];
u32 out_num_objects;
Service* out_objects;
SfOutHandleAttrs out_handle_attrs;
Handle* out_handles;
u64 override_pid;
} SfMitmDispatchParams;
NX_INLINE Result serviceMitmDispatchImpl(
Service* s, u32 request_id,
const void* in_data, u32 in_data_size,
void* out_data, u32 out_data_size,
SfMitmDispatchParams disp
)
{
// Make a copy of the service struct, so that the compiler can assume that it won't be modified by function calls.
Service srv = *s;
void* in = serviceMakeRequest(&srv, request_id, disp.context,
in_data_size, disp.in_send_pid,
disp.buffer_attrs, disp.buffers,
disp.in_num_objects, disp.in_objects,
disp.in_num_handles, disp.in_handles);
if (in_data_size)
__builtin_memcpy(in, in_data, in_data_size);
if (disp.in_send_pid && disp.override_pid) {
const u64 pid = (disp.override_pid & 0x0000FFFFFFFFFFFFul) | 0xFFFE000000000000ul;
__builtin_memcpy((u8 *)armGetTls() + 0xC, &pid, sizeof(pid));
}
Result rc = svcSendSyncRequest(disp.target_session == INVALID_HANDLE ? s->session : disp.target_session);
if (R_SUCCEEDED(rc)) {
void* out = NULL;
rc = serviceParseResponse(&srv,
out_data_size, &out,
disp.out_num_objects, disp.out_objects,
disp.out_handle_attrs, disp.out_handles);
if (R_SUCCEEDED(rc) && out_data && out_data_size)
__builtin_memcpy(out_data, out, out_data_size);
}
return rc;
}
#define serviceMitmDispatch(_s,_rid,...) \
serviceMitmDispatchImpl((_s),(_rid),NULL,0,NULL,0,(SfMitmDispatchParams){ __VA_ARGS__ })
#define serviceMitmDispatchIn(_s,_rid,_in,...) \
serviceMitmDispatchImpl((_s),(_rid),&(_in),sizeof(_in),NULL,0,(SfMitmDispatchParams){ __VA_ARGS__ })
#define serviceMitmDispatchOut(_s,_rid,_out,...) \
serviceMitmDispatchImpl((_s),(_rid),NULL,0,&(_out),sizeof(_out),(SfMitmDispatchParams){ __VA_ARGS__ })
#define serviceMitmDispatchInOut(_s,_rid,_in,_out,...) \
serviceMitmDispatchImpl((_s),(_rid),&(_in),sizeof(_in),&(_out),sizeof(_out),(SfMitmDispatchParams){ __VA_ARGS__ })
#ifdef __cplusplus
}
#endif
#endif