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#ifndef _LIBEXEC_H_
#define _LIBEXEC_H_ 1
#include <sys/exec_elf.h>
struct exec_info;
typedef int (*libexec_loadfunc_t)(struct exec_info *execi,
off_t offset, vir_bytes vaddr, size_t len);
typedef int (*libexec_clearfunc_t)(struct exec_info *execi,
vir_bytes vaddr, size_t len);
typedef int (*libexec_allocfunc_t)(struct exec_info *execi,
vir_bytes vaddr, size_t len);
typedef int (*libexec_procclearfunc_t)(struct exec_info *execi);
typedef int (*libexec_mmap_t)(struct exec_info *execi,
vir_bytes vaddr, vir_bytes len, vir_bytes foffset, u16_t clearend,
int protflags);
struct exec_info {
/* Filled in by libexec caller */
endpoint_t proc_e; /* Process endpoint */
char *hdr; /* Header or full image */
size_t hdr_len; /* Size of hdr */
vir_bytes frame_len; /* Stack size */
char progname[PROC_NAME_LEN]; /* Program name */
uid_t new_uid; /* Process UID after exec */
gid_t new_gid; /* Process GID after exec */
int allow_setuid; /* Allow set{u,g}id execution? */
vir_bytes stack_size; /* Desired stack size */
vir_bytes load_offset; /* Desired load offset */
vir_bytes text_size; /* Text segment size */
vir_bytes data_size; /* Data segment size */
off_t filesize; /* How big is the file */
/* Callback pointers for use by libexec */
libexec_loadfunc_t copymem; /* Copy callback */
libexec_clearfunc_t clearmem; /* Clear callback */
libexec_allocfunc_t allocmem_prealloc_cleared; /* Alloc callback */
libexec_allocfunc_t allocmem_prealloc_junk; /* Alloc callback */
libexec_allocfunc_t allocmem_ondemand; /* Alloc callback */
libexec_procclearfunc_t clearproc; /* Clear process callback */
libexec_mmap_t memmap; /* mmap callback */
void *opaque; /* Callback data */
/* Filled in by libexec load function */
vir_bytes load_base; /* Where executable is loaded */
vir_bytes pc; /* Entry point of exec file */
vir_bytes stack_high; /* High stack addr */
};
int elf_has_interpreter(char *exec_hdr, size_t hdr_len, char *interp,
size_t maxsz);
int elf_phdr(char *exec_hdr, size_t hdr_len, vir_bytes *phdr);
int libexec_pm_newexec(endpoint_t proc_e, struct exec_info *execi);
typedef int (*libexec_exec_loadfunc_t)(struct exec_info *execi);
int libexec_load_elf(struct exec_info *execi);
/* Default callbacks for kernel. */
int libexec_copy_memcpy(struct exec_info *execi, off_t offset, vir_bytes vaddr, size_t len);
int libexec_clear_memset(struct exec_info *execi, vir_bytes vaddr, size_t len);
/* Default callbacks. */
int libexec_alloc_mmap_prealloc_cleared(struct exec_info *execi, vir_bytes vaddr, size_t len);
int libexec_alloc_mmap_prealloc_junk(struct exec_info *execi, vir_bytes vaddr, size_t len);
int libexec_alloc_mmap_ondemand(struct exec_info *execi, vir_bytes vaddr, size_t len);
int libexec_clearproc_vm_procctl(struct exec_info *execi);
int libexec_clear_sys_memset(struct exec_info *execi, vir_bytes vaddr, size_t len);
#endif /* !_LIBEXEC_H_ */
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