/*
* Copyright ( C ) 2021 The Android Open Source Project
*
* Licensed under the Apache License , Version 2 . 0 ( the " License " ) ;
* you may not use this file except in compliance with the License .
* You may obtain a copy of the License at
*
* http : //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing , software
* distributed under the License is distributed on an " AS IS " BASIS ,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND , either express or implied .
* See the License for the specific language governing permissions and
* limitations under the License .
*/
#ifndef LIBXBC_H_
#define LIBXBC_H_
// memcpy and strncmp
#include <common.h>
/*
* Add a string of boot config parameters to memory appended by the trailer .
* This memory needs to be immediately following the end of the ramdisks .
* The new boot config trailer will be written to the end of the entire
* parameter section ( previous + new ) . The trailer contains a 4 byte size of the
* parameters , followed by a 4 byte checksum of the parameters , followed by a 12
* byte magic string .
*
* @ param params pointer to string of boot config parameters
* @ param params_size size of params string in bytes
* @ param bootconfig_start_addr address that the boot config section is starting
* at in memory .
* @ param bootconfig_size size of the current bootconfig section in bytes .
* @ return number of bytes added to the boot config section . - 1 for error .
*/
int addBootConfigParameters(const char *params, uint32_t params_size,
uint64_t bootconfig_start_addr,
uint32_t bootconfig_size);
/*
* Add the boot config trailer to the end of the boot config parameter section .
* This can be used after the vendor bootconfig section has been placed into
* memory if there are no additional parameters that need to be added .
* The new boot config trailer will be written to the end of the entire
* parameter section at ( bootconfig_start_addr + bootconfig_size ) .
* The trailer contains a 4 byte size of the parameters , followed by a 4 byte
* checksum of the parameters , followed by a 12 byte magic string .
*
* @ param bootconfig_start_addr address that the boot config section is starting
* at in memory .
* @ param bootconfig_size size of the current bootconfig section in bytes .
* @ return number of bytes added to the boot config section . - 1 for error .
*/
int addBootConfigTrailer(uint64_t bootconfig_start_addr,
uint32_t bootconfig_size);
#endif /* LIBXBC_H_ */
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(vorverarbeitet am 2026-07-01)
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