data_transfers.h

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#ifndef _PSP2KERN_KERNEL_SYSMEM_DATA_TRANSFERS_H_
#define _PSP2KERN_KERNEL_SYSMEM_DATA_TRANSFERS_H_
 
#include <psp2kern/types.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*
 * TTBR1: Translation Table Base Register 1.
 *        The 0x40000000-0xFFFFFFFF virtual region is mapped by TTBR1.
 *        This range is all userland memory.
 *        At kernel context, kernel TTBR1 is set, but it is not mapped to anything.
 *
 * DACR:  Domain access control register.
 *        Simply put, memory access permission.
 *        See: https://developer.arm.com/documentation/ddi0406/c/System-Level-Architecture/System-Control-Registers-in-a-VMSA-implementation/VMSA-System-control-registers-descriptions--in-register-order/DACR--Domain-Access-Control-Register--VMSA?lang=en
 */
 
int ksceKernelCopyFromUser(void *dst, const void *src, SceSize len);
 
int ksceKernelCopyFromUserProc(SceUID pid, void *dst, const void *src, SceSize len);
 
int ksceKernelCopyToUser(void *dst, const void *src, SceSize len);
 
int ksceKernelCopyToUserProc(SceUID pid, void *dst, const void *src, SceSize len);
 
int ksceKernelCopyToUserDomain(void *dst, const void *src, SceSize len);
 
int ksceKernelCopyToUserTextDomain(void *dst, const void *src, SceSize len);
 
int ksceKernelCopyToUserProcTextDomain(SceUID pid, void *dst, const void *src, SceSize len);
 
SceSSize ksceKernelStrncpyFromUser(char *dst, const char *src, SceSize len);
 
SceSSize ksceKernelStrncpyFromUserProc(SceUID pid, char *dst, const char *src, SceSize len);
 
SceSSize ksceKernelStrncpyToUser(char *dst, const char *src, SceSize len);
 
SceSSize ksceKernelStrncpyToUserProc(SceUID pid, char *dst, const char *src, SceSize len);
 
SceSize ksceKernelStrnlenFromUser(const char *s, SceSize n);
 
SceSSize ksceKernelStrnlenFromUserProc(SceUID pid, const char *s, SceSize n);
 
int ksceKernelCopyFromToUser(void *dst, const void *src, SceSize len);
 
int ksceKernelCopyFromToUserProc(SceUID pid, void *dst, const void *src, SceSize len);
 
 
/* Macros for backwards compatibility */
#define ksceKernelMemcpyUserToKernel(__dst__, __src__, __len__)                  ksceKernelCopyFromUser((__dst__), (__src__), (__len__))
#define ksceKernelMemcpyUserToKernelForPid(__pid__, __dst__, __src__, __len__)   ksceKernelCopyFromUserProc((__pid__), (__dst__), (__src__), (__len__))
#define ksceKernelMemcpyKernelToUser(__dst__, __src__, __len__)                  ksceKernelCopyToUser((__dst__), (__src__), (__len__))
#define ksceKernelMemcpyToUserRo(__dst__, __src__, __len__)                      ksceKernelCopyToUserDomain((__dst__), (__src__), (__len__))
#define ksceKernelMemcpyToUserRx(__dst__, __src__, __len__)                      ksceKernelCopyToUserTextDomain((__dst__), (__src__), (__len__))
#define ksceKernelRxMemcpyKernelToUserForPid(__pid__, __dst__, __src__, __len__) ksceKernelCopyToUserProcTextDomain((__pid__), (__dst__), (__src__), (__len__))
 
#define ksceKernelMemcpyFromUser(__dst__, __src__, __len__)              ksceKernelCopyFromUser(__dst__, __src__, __len__)
#define ksceKernelProcMemcpyFromUser(__pid__, __dst__, __src__, __len__) ksceKernelCopyFromUserProc(__pid__, __dst__, __src__, __len__)
#define ksceKernelMemcpyToUser(__dst__, __src__, __len__)                ksceKernelCopyToUser(__dst__, __src__, __len__)
#define ksceKernelProcMemcpyToUser(__pid__, __dst__, __src__, __len__)   ksceKernelCopyToUserProc(__pid__, __dst__, __src__, __len__)
#define ksceKernelUserMemcpy(__dst__, __src__, __len__)                  ksceKernelCopyFromToUser(__dst__, __src__, __len__)
#define ksceKernelProcUserMemcpy(__pid__, __dst__, __src__, __len__)     ksceKernelCopyFromToUserProc(__pid__, __dst__, __src__, __len__)
#define ksceKernelProcMemcpyToUserRx(__pid__, __dst__, __src__, __len__) ksceKernelCopyToUserProcTextDomain(__pid__, __dst__, __src__, __len__)
 
#define ksceKernelStrncpyUserToKernel(__dst__, __src__, __len__)        ksceKernelStrncpyFromUser((__dst__), (__src__), (__len__))
#define ksceKernelStrncpyUserForPid(__pid__, __dst__, __src__, __len__) ksceKernelStrncpyFromUserProc((__pid__), (__dst__), (__src__), (__len__))
#define ksceKernelStrncpyKernelToUser(__dst__, __src__, __len__)        ksceKernelStrncpyToUser((__dst__), (__src__), (__len__))
 
#define ksceKernelProcStrncpyFromUser(__pid__, __dst__, __src__, __len__) ksceKernelStrncpyFromUserProc((__pid__), (__dst__), (__src__), (__len__))
#define ksceKernelProcStrncpyToUser(__pid__, __dst__, __src__, __len__)   ksceKernelStrncpyToUserProc((__pid__), (__dst__), (__src__), (__len__))
#define ksceKernelStrnlenUser(__s__, __n__)                               ksceKernelStrnlenFromUser(__s__, __n__)
#define ksceKernelProcStrnlenUser(__pid__, __s__, __n__)                  ksceKernelStrnlenFromUserProc(__pid__, __s__, __n__)
 
#ifdef __cplusplus
}
#endif
 
#endif /* _PSP2KERN_KERNEL_SYSMEM_DATA_TRANSFERS_H_ */