75 lines
3.1 KiB
C
75 lines
3.1 KiB
C
#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, int hdr_len, char *interp, int maxsz);
|
|
int elf_phdr(char *exec_hdr, int 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_ */
|