elfops.h

   1 #ifndef MODINITTOOLS_MODULEOPS_H
   2 #define MODINITTOOLS_MODULEOPS_H
   3 #include <stdio.h>
   4 #include <stdint.h>
   5 #include "logging.h"
   6
   7 /* All the icky stuff to do with manipulating 64 and 32-bit modules
   8    belongs here. */
   9 struct modver_info32
  10 {
  11         uint32_t crc;
  12         char name[64 - sizeof(uint32_t)];
  13 };
  14
  15 struct modver_info64
  16 {
  17         uint64_t crc;
  18         char name[64 - sizeof(uint64_t)];
  19 };
  20
  21 struct elf_file
  22 {
  23         char *pathname;
  24
  25         /* File operations */
  26         struct module_ops *ops;
  27
  28         /* Convert endian? */
  29         int conv;
  30
  31         /* File contents and length. */
  32         void *data;
  33         unsigned long len;
  34 };
  35
  36 /* Tables extracted from module by ops->fetch_tables(). */
  37 struct module_tables
  38 {
  39         unsigned int pci_size;
  40         void *pci_table;
  41         unsigned int usb_size;
  42         void *usb_table;
  43         unsigned int ieee1394_size;
  44         void *ieee1394_table;
  45         unsigned int ccw_size;
  46         void *ccw_table;
  47         unsigned int pnp_size;
  48         void *pnp_table;
  49         unsigned int pnp_card_size;
  50         unsigned int pnp_card_offset;
  51         void *pnp_card_table;
  52         unsigned int input_size;
  53         void *input_table;
  54         unsigned int input_table_size;
  55         unsigned int serio_size;
  56         void *serio_table;
  57         unsigned int of_size;
  58         void *of_table;
  59 };
  60
  61 struct module_ops
  62 {
  63         void *(*load_section)(struct elf_file *module,
  64                 const char *secname, unsigned long *secsize);
  65         struct string_table *(*load_strings)(struct elf_file *module,
  66                 const char *secname, struct string_table *tbl, errfn_t error);
  67         struct string_table *(*load_symbols)(struct elf_file *module,
  68                 uint64_t **versions);
  69         struct string_table *(*load_dep_syms)(struct elf_file *module,
  70                 struct string_table **types, uint64_t **versions);
  71         void (*fetch_tables)(struct elf_file *module,
  72                 struct module_tables *tables);
  73         char *(*get_aliases)(struct elf_file *module, unsigned long *size);
  74         char *(*get_modinfo)(struct elf_file *module, unsigned long *size);
  75         void (*strip_section)(struct elf_file *module, const char *secname);
  76         int (*dump_modvers)(struct elf_file *module);
  77 };
  78
  79 extern struct module_ops mod_ops32, mod_ops64;
  80
  81 struct elf_file *grab_elf_file(const char *pathname);
  82 struct elf_file *grab_elf_file_fd(const char *pathname, int fd);
  83 void release_elf_file(struct elf_file *file);
  84
  85 #endif /* MODINITTOOLS_MODULEOPS_H */