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100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <switch.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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Handle target_session;
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u32 context;
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SfBufferAttrs buffer_attrs;
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SfBuffer buffers[8];
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bool in_send_pid;
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u32 in_num_objects;
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const Service* in_objects[8];
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u32 in_num_handles;
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Handle in_handles[8];
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u32 out_num_objects;
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Service* out_objects;
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SfOutHandleAttrs out_handle_attrs;
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Handle* out_handles;
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u64 override_pid;
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} SfMitmDispatchParams;
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NX_INLINE Result serviceMitmDispatchImpl(
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Service* s, u32 request_id,
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const void* in_data, u32 in_data_size,
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void* out_data, u32 out_data_size,
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SfMitmDispatchParams disp
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)
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{
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// Make a copy of the service struct, so that the compiler can assume that it won't be modified by function calls.
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Service srv = *s;
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void* in = serviceMakeRequest(&srv, request_id, disp.context,
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in_data_size, disp.in_send_pid,
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disp.buffer_attrs, disp.buffers,
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disp.in_num_objects, disp.in_objects,
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disp.in_num_handles, disp.in_handles);
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if (in_data_size)
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__builtin_memcpy(in, in_data, in_data_size);
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if (disp.in_send_pid && disp.override_pid) {
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const u64 pid = (disp.override_pid & 0x0000FFFFFFFFFFFFul) | 0xFFFE000000000000ul;
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__builtin_memcpy((u8 *)armGetTls() + 0xC, &pid, sizeof(pid));
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}
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Result rc = svcSendSyncRequest(disp.target_session == INVALID_HANDLE ? s->session : disp.target_session);
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if (R_SUCCEEDED(rc)) {
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void* out = NULL;
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rc = serviceParseResponse(&srv,
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out_data_size, &out,
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disp.out_num_objects, disp.out_objects,
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disp.out_handle_attrs, disp.out_handles);
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if (R_SUCCEEDED(rc) && out_data && out_data_size)
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__builtin_memcpy(out_data, out, out_data_size);
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}
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return rc;
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}
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#define serviceMitmDispatch(_s,_rid,...) \
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serviceMitmDispatchImpl((_s),(_rid),NULL,0,NULL,0,(SfMitmDispatchParams){ __VA_ARGS__ })
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#define serviceMitmDispatchIn(_s,_rid,_in,...) \
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serviceMitmDispatchImpl((_s),(_rid),&(_in),sizeof(_in),NULL,0,(SfMitmDispatchParams){ __VA_ARGS__ })
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#define serviceMitmDispatchOut(_s,_rid,_out,...) \
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serviceMitmDispatchImpl((_s),(_rid),NULL,0,&(_out),sizeof(_out),(SfMitmDispatchParams){ __VA_ARGS__ })
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#define serviceMitmDispatchInOut(_s,_rid,_in,_out,...) \
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serviceMitmDispatchImpl((_s),(_rid),&(_in),sizeof(_in),&(_out),sizeof(_out),(SfMitmDispatchParams){ __VA_ARGS__ })
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#ifdef __cplusplus
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}
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#endif
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