Lines Matching refs:mod
185 unsigned int sym, str, mod, vers, info, pcpu; member
191 static inline int strong_try_module_get(struct module *mod) in strong_try_module_get() argument
193 BUG_ON(mod && mod->state == MODULE_STATE_UNFORMED); in strong_try_module_get()
194 if (mod && mod->state == MODULE_STATE_COMING) in strong_try_module_get()
196 if (try_module_get(mod)) in strong_try_module_get()
202 static inline void add_taint_module(struct module *mod, unsigned flag, in add_taint_module() argument
206 mod->taints |= (1U << flag); in add_taint_module()
213 void __module_put_and_exit(struct module *mod, long code) in __module_put_and_exit() argument
215 module_put(mod); in __module_put_and_exit()
304 struct module *mod; in each_symbol_section() local
327 list_for_each_entry_rcu(mod, &modules, list) { in each_symbol_section()
329 { mod->syms, mod->syms + mod->num_syms, mod->crcs, in each_symbol_section()
331 { mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms, in each_symbol_section()
332 mod->gpl_crcs, in each_symbol_section()
334 { mod->gpl_future_syms, in each_symbol_section()
335 mod->gpl_future_syms + mod->num_gpl_future_syms, in each_symbol_section()
336 mod->gpl_future_crcs, in each_symbol_section()
339 { mod->unused_syms, in each_symbol_section()
340 mod->unused_syms + mod->num_unused_syms, in each_symbol_section()
341 mod->unused_crcs, in each_symbol_section()
343 { mod->unused_gpl_syms, in each_symbol_section()
344 mod->unused_gpl_syms + mod->num_unused_gpl_syms, in each_symbol_section()
345 mod->unused_gpl_crcs, in each_symbol_section()
350 if (mod->state == MODULE_STATE_UNFORMED) in each_symbol_section()
353 if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data)) in each_symbol_section()
461 struct module *mod; in find_module_all() local
463 list_for_each_entry(mod, &modules, list) { in find_module_all()
464 if (!even_unformed && mod->state == MODULE_STATE_UNFORMED) in find_module_all()
466 if (strlen(mod->name) == len && !memcmp(mod->name, name, len)) in find_module_all()
467 return mod; in find_module_all()
480 static inline void __percpu *mod_percpu(struct module *mod) in mod_percpu() argument
482 return mod->percpu; in mod_percpu()
485 static int percpu_modalloc(struct module *mod, struct load_info *info) in percpu_modalloc() argument
495 mod->name, align, PAGE_SIZE); in percpu_modalloc()
499 mod->percpu = __alloc_reserved_percpu(pcpusec->sh_size, align); in percpu_modalloc()
500 if (!mod->percpu) { in percpu_modalloc()
502 mod->name, (unsigned long)pcpusec->sh_size); in percpu_modalloc()
505 mod->percpu_size = pcpusec->sh_size; in percpu_modalloc()
509 static void percpu_modfree(struct module *mod) in percpu_modfree() argument
511 free_percpu(mod->percpu); in percpu_modfree()
519 static void percpu_modcopy(struct module *mod, in percpu_modcopy() argument
525 memcpy(per_cpu_ptr(mod->percpu, cpu), from, size); in percpu_modcopy()
539 struct module *mod; in is_module_percpu_address() local
544 list_for_each_entry_rcu(mod, &modules, list) { in is_module_percpu_address()
545 if (mod->state == MODULE_STATE_UNFORMED) in is_module_percpu_address()
547 if (!mod->percpu_size) in is_module_percpu_address()
550 void *start = per_cpu_ptr(mod->percpu, cpu); in is_module_percpu_address()
553 (void *)addr < start + mod->percpu_size) { in is_module_percpu_address()
566 static inline void __percpu *mod_percpu(struct module *mod) in mod_percpu() argument
570 static int percpu_modalloc(struct module *mod, struct load_info *info) in percpu_modalloc() argument
577 static inline void percpu_modfree(struct module *mod) in percpu_modfree() argument
584 static inline void percpu_modcopy(struct module *mod, in percpu_modcopy() argument
598 static void setup_modinfo_##field(struct module *mod, const char *s) \
600 mod->field = kstrdup(s, GFP_KERNEL); \
605 return scnprintf(buffer, PAGE_SIZE, "%s\n", mk->mod->field); \
607 static int modinfo_##field##_exists(struct module *mod) \
609 return mod->field != NULL; \
611 static void free_modinfo_##field(struct module *mod) \
613 kfree(mod->field); \
614 mod->field = NULL; \
637 static int module_unload_init(struct module *mod) in module_unload_init() argument
643 atomic_set(&mod->refcnt, MODULE_REF_BASE); in module_unload_init()
645 INIT_LIST_HEAD(&mod->source_list); in module_unload_init()
646 INIT_LIST_HEAD(&mod->target_list); in module_unload_init()
649 atomic_inc(&mod->refcnt); in module_unload_init()
717 static void module_unload_free(struct module *mod) in module_unload_free() argument
722 list_for_each_entry_safe(use, tmp, &mod->target_list, target_list) { in module_unload_free()
724 pr_debug("%s unusing %s\n", mod->name, i->name); in module_unload_free()
749 static int try_release_module_ref(struct module *mod) in try_release_module_ref() argument
754 ret = atomic_sub_return(MODULE_REF_BASE, &mod->refcnt); in try_release_module_ref()
758 ret = atomic_add_unless(&mod->refcnt, MODULE_REF_BASE, 0); in try_release_module_ref()
763 static int try_stop_module(struct module *mod, int flags, int *forced) in try_stop_module() argument
766 if (try_release_module_ref(mod) != 0) { in try_stop_module()
773 mod->state = MODULE_STATE_GOING; in try_stop_module()
787 int module_refcount(struct module *mod) in module_refcount() argument
789 return atomic_read(&mod->refcnt) - MODULE_REF_BASE; in module_refcount()
794 static void free_module(struct module *mod);
799 struct module *mod; in SYSCALL_DEFINE2() local
813 mod = find_module(name); in SYSCALL_DEFINE2()
814 if (!mod) { in SYSCALL_DEFINE2()
819 if (!list_empty(&mod->source_list)) { in SYSCALL_DEFINE2()
826 if (mod->state != MODULE_STATE_LIVE) { in SYSCALL_DEFINE2()
828 pr_debug("%s already dying\n", mod->name); in SYSCALL_DEFINE2()
834 if (mod->init && !mod->exit) { in SYSCALL_DEFINE2()
844 ret = try_stop_module(mod, flags, &forced); in SYSCALL_DEFINE2()
850 if (mod->exit != NULL) in SYSCALL_DEFINE2()
851 mod->exit(); in SYSCALL_DEFINE2()
853 MODULE_STATE_GOING, mod); in SYSCALL_DEFINE2()
857 strlcpy(last_unloaded_module, mod->name, sizeof(last_unloaded_module)); in SYSCALL_DEFINE2()
859 free_module(mod); in SYSCALL_DEFINE2()
866 static inline void print_unload_info(struct seq_file *m, struct module *mod) in print_unload_info() argument
871 seq_printf(m, " %i ", module_refcount(mod)); in print_unload_info()
877 list_for_each_entry(use, &mod->source_list, source_list) { in print_unload_info()
882 if (mod->init != NULL && mod->exit == NULL) { in print_unload_info()
927 return sprintf(buffer, "%i\n", module_refcount(mk->mod)); in show_refcnt()
978 static inline void print_unload_info(struct seq_file *m, struct module *mod) in print_unload_info() argument
984 static inline void module_unload_free(struct module *mod) in module_unload_free() argument
994 static inline int module_unload_init(struct module *mod) in module_unload_init() argument
1000 static size_t module_flags_taint(struct module *mod, char *buf) in module_flags_taint() argument
1004 if (mod->taints & (1 << TAINT_PROPRIETARY_MODULE)) in module_flags_taint()
1006 if (mod->taints & (1 << TAINT_OOT_MODULE)) in module_flags_taint()
1008 if (mod->taints & (1 << TAINT_FORCED_MODULE)) in module_flags_taint()
1010 if (mod->taints & (1 << TAINT_CRAP)) in module_flags_taint()
1012 if (mod->taints & (1 << TAINT_UNSIGNED_MODULE)) in module_flags_taint()
1027 switch (mk->mod->state) { in show_initstate()
1063 return sprintf(buffer, "%u\n", mk->mod->core_size); in show_coresize()
1072 return sprintf(buffer, "%u\n", mk->mod->init_size); in show_initsize()
1083 l = module_flags_taint(mk->mod, buffer); in show_taint()
1107 static int try_to_force_load(struct module *mod, const char *reason) in try_to_force_load() argument
1111 pr_warn("%s: %s: kernel tainted.\n", mod->name, reason); in try_to_force_load()
1112 add_taint_module(mod, TAINT_FORCED_MODULE, LOCKDEP_NOW_UNRELIABLE); in try_to_force_load()
1134 struct module *mod, in check_version() argument
1147 return try_to_force_load(mod, symname) == 0; in check_version()
1164 pr_warn("%s: no symbol version for %s\n", mod->name, symname); in check_version()
1169 mod->name, symname); in check_version()
1175 struct module *mod) in check_modstruct_version() argument
1185 VMLINUX_SYMBOL_STR(module_layout), mod, crc, in check_modstruct_version()
1203 struct module *mod, in check_version() argument
1212 struct module *mod) in check_modstruct_version() argument
1225 static const struct kernel_symbol *resolve_symbol(struct module *mod, in resolve_symbol() argument
1243 !(mod->taints & (1 << TAINT_PROPRIETARY_MODULE)), true); in resolve_symbol()
1247 if (!check_version(info->sechdrs, info->index.vers, name, mod, crc, in resolve_symbol()
1253 err = ref_module(mod, owner); in resolve_symbol()
1268 resolve_symbol_wait(struct module *mod, in resolve_symbol_wait() argument
1276 !IS_ERR(ksym = resolve_symbol(mod, info, name, owner)) in resolve_symbol_wait()
1280 mod->name, owner); in resolve_symbol_wait()
1326 static void add_sect_attrs(struct module *mod, const struct load_info *info) in add_sect_attrs() argument
1371 if (sysfs_create_group(&mod->mkobj.kobj, §_attrs->grp)) in add_sect_attrs()
1374 mod->sect_attrs = sect_attrs; in add_sect_attrs()
1380 static void remove_sect_attrs(struct module *mod) in remove_sect_attrs() argument
1382 if (mod->sect_attrs) { in remove_sect_attrs()
1383 sysfs_remove_group(&mod->mkobj.kobj, in remove_sect_attrs()
1384 &mod->sect_attrs->grp); in remove_sect_attrs()
1387 free_sect_attrs(mod->sect_attrs); in remove_sect_attrs()
1388 mod->sect_attrs = NULL; in remove_sect_attrs()
1425 static void add_notes_attrs(struct module *mod, const struct load_info *info) in add_notes_attrs() argument
1432 if (!mod->sect_attrs) in add_notes_attrs()
1458 nattr->attr.name = mod->sect_attrs->attrs[loaded].name; in add_notes_attrs()
1468 notes_attrs->dir = kobject_create_and_add("notes", &mod->mkobj.kobj); in add_notes_attrs()
1477 mod->notes_attrs = notes_attrs; in add_notes_attrs()
1484 static void remove_notes_attrs(struct module *mod) in remove_notes_attrs() argument
1486 if (mod->notes_attrs) in remove_notes_attrs()
1487 free_notes_attrs(mod->notes_attrs, mod->notes_attrs->notes); in remove_notes_attrs()
1492 static inline void add_sect_attrs(struct module *mod, in add_sect_attrs() argument
1497 static inline void remove_sect_attrs(struct module *mod) in remove_sect_attrs() argument
1501 static inline void add_notes_attrs(struct module *mod, in add_notes_attrs() argument
1506 static inline void remove_notes_attrs(struct module *mod) in remove_notes_attrs() argument
1511 static void add_usage_links(struct module *mod) in add_usage_links() argument
1518 list_for_each_entry(use, &mod->target_list, target_list) { in add_usage_links()
1520 &mod->mkobj.kobj, mod->name); in add_usage_links()
1526 static void del_usage_links(struct module *mod) in del_usage_links() argument
1532 list_for_each_entry(use, &mod->target_list, target_list) in del_usage_links()
1533 sysfs_remove_link(use->target->holders_dir, mod->name); in del_usage_links()
1538 static int module_add_modinfo_attrs(struct module *mod) in module_add_modinfo_attrs() argument
1545 mod->modinfo_attrs = kzalloc((sizeof(struct module_attribute) * in module_add_modinfo_attrs()
1548 if (!mod->modinfo_attrs) in module_add_modinfo_attrs()
1551 temp_attr = mod->modinfo_attrs; in module_add_modinfo_attrs()
1554 (attr->test && attr->test(mod))) { in module_add_modinfo_attrs()
1557 error = sysfs_create_file(&mod->mkobj.kobj, in module_add_modinfo_attrs()
1565 static void module_remove_modinfo_attrs(struct module *mod) in module_remove_modinfo_attrs() argument
1570 for (i = 0; (attr = &mod->modinfo_attrs[i]); i++) { in module_remove_modinfo_attrs()
1574 sysfs_remove_file(&mod->mkobj.kobj, &attr->attr); in module_remove_modinfo_attrs()
1576 attr->free(mod); in module_remove_modinfo_attrs()
1578 kfree(mod->modinfo_attrs); in module_remove_modinfo_attrs()
1581 static void mod_kobject_put(struct module *mod) in mod_kobject_put() argument
1584 mod->mkobj.kobj_completion = &c; in mod_kobject_put()
1585 kobject_put(&mod->mkobj.kobj); in mod_kobject_put()
1589 static int mod_sysfs_init(struct module *mod) in mod_sysfs_init() argument
1595 pr_err("%s: module sysfs not initialized\n", mod->name); in mod_sysfs_init()
1600 kobj = kset_find_obj(module_kset, mod->name); in mod_sysfs_init()
1602 pr_err("%s: module is already loaded\n", mod->name); in mod_sysfs_init()
1608 mod->mkobj.mod = mod; in mod_sysfs_init()
1610 memset(&mod->mkobj.kobj, 0, sizeof(mod->mkobj.kobj)); in mod_sysfs_init()
1611 mod->mkobj.kobj.kset = module_kset; in mod_sysfs_init()
1612 err = kobject_init_and_add(&mod->mkobj.kobj, &module_ktype, NULL, in mod_sysfs_init()
1613 "%s", mod->name); in mod_sysfs_init()
1615 mod_kobject_put(mod); in mod_sysfs_init()
1622 static int mod_sysfs_setup(struct module *mod, in mod_sysfs_setup() argument
1629 err = mod_sysfs_init(mod); in mod_sysfs_setup()
1633 mod->holders_dir = kobject_create_and_add("holders", &mod->mkobj.kobj); in mod_sysfs_setup()
1634 if (!mod->holders_dir) { in mod_sysfs_setup()
1639 err = module_param_sysfs_setup(mod, kparam, num_params); in mod_sysfs_setup()
1643 err = module_add_modinfo_attrs(mod); in mod_sysfs_setup()
1647 add_usage_links(mod); in mod_sysfs_setup()
1648 add_sect_attrs(mod, info); in mod_sysfs_setup()
1649 add_notes_attrs(mod, info); in mod_sysfs_setup()
1651 kobject_uevent(&mod->mkobj.kobj, KOBJ_ADD); in mod_sysfs_setup()
1655 module_param_sysfs_remove(mod); in mod_sysfs_setup()
1657 kobject_put(mod->holders_dir); in mod_sysfs_setup()
1659 mod_kobject_put(mod); in mod_sysfs_setup()
1664 static void mod_sysfs_fini(struct module *mod) in mod_sysfs_fini() argument
1666 remove_notes_attrs(mod); in mod_sysfs_fini()
1667 remove_sect_attrs(mod); in mod_sysfs_fini()
1668 mod_kobject_put(mod); in mod_sysfs_fini()
1673 static int mod_sysfs_setup(struct module *mod, in mod_sysfs_setup() argument
1681 static void mod_sysfs_fini(struct module *mod) in mod_sysfs_fini() argument
1685 static void module_remove_modinfo_attrs(struct module *mod) in module_remove_modinfo_attrs() argument
1689 static void del_usage_links(struct module *mod) in del_usage_links() argument
1695 static void mod_sysfs_teardown(struct module *mod) in mod_sysfs_teardown() argument
1697 del_usage_links(mod); in mod_sysfs_teardown()
1698 module_remove_modinfo_attrs(mod); in mod_sysfs_teardown()
1699 module_param_sysfs_remove(mod); in mod_sysfs_teardown()
1700 kobject_put(mod->mkobj.drivers_dir); in mod_sysfs_teardown()
1701 kobject_put(mod->holders_dir); in mod_sysfs_teardown()
1702 mod_sysfs_fini(mod); in mod_sysfs_teardown()
1749 static void unset_module_core_ro_nx(struct module *mod) in unset_module_core_ro_nx() argument
1751 set_page_attributes(mod->module_core + mod->core_text_size, in unset_module_core_ro_nx()
1752 mod->module_core + mod->core_size, in unset_module_core_ro_nx()
1754 set_page_attributes(mod->module_core, in unset_module_core_ro_nx()
1755 mod->module_core + mod->core_ro_size, in unset_module_core_ro_nx()
1759 static void unset_module_init_ro_nx(struct module *mod) in unset_module_init_ro_nx() argument
1761 set_page_attributes(mod->module_init + mod->init_text_size, in unset_module_init_ro_nx()
1762 mod->module_init + mod->init_size, in unset_module_init_ro_nx()
1764 set_page_attributes(mod->module_init, in unset_module_init_ro_nx()
1765 mod->module_init + mod->init_ro_size, in unset_module_init_ro_nx()
1772 struct module *mod; in set_all_modules_text_rw() local
1775 list_for_each_entry_rcu(mod, &modules, list) { in set_all_modules_text_rw()
1776 if (mod->state == MODULE_STATE_UNFORMED) in set_all_modules_text_rw()
1778 if ((mod->module_core) && (mod->core_text_size)) { in set_all_modules_text_rw()
1779 set_page_attributes(mod->module_core, in set_all_modules_text_rw()
1780 mod->module_core + mod->core_text_size, in set_all_modules_text_rw()
1783 if ((mod->module_init) && (mod->init_text_size)) { in set_all_modules_text_rw()
1784 set_page_attributes(mod->module_init, in set_all_modules_text_rw()
1785 mod->module_init + mod->init_text_size, in set_all_modules_text_rw()
1795 struct module *mod; in set_all_modules_text_ro() local
1798 list_for_each_entry_rcu(mod, &modules, list) { in set_all_modules_text_ro()
1799 if (mod->state == MODULE_STATE_UNFORMED) in set_all_modules_text_ro()
1801 if ((mod->module_core) && (mod->core_text_size)) { in set_all_modules_text_ro()
1802 set_page_attributes(mod->module_core, in set_all_modules_text_ro()
1803 mod->module_core + mod->core_text_size, in set_all_modules_text_ro()
1806 if ((mod->module_init) && (mod->init_text_size)) { in set_all_modules_text_ro()
1807 set_page_attributes(mod->module_init, in set_all_modules_text_ro()
1808 mod->module_init + mod->init_text_size, in set_all_modules_text_ro()
1816 static void unset_module_core_ro_nx(struct module *mod) { } in unset_module_core_ro_nx() argument
1817 static void unset_module_init_ro_nx(struct module *mod) { } in unset_module_init_ro_nx() argument
1825 void __weak module_arch_cleanup(struct module *mod) in module_arch_cleanup() argument
1829 void __weak module_arch_freeing_init(struct module *mod) in module_arch_freeing_init() argument
1834 static void free_module(struct module *mod) in free_module() argument
1836 trace_module_free(mod); in free_module()
1838 mod_sysfs_teardown(mod); in free_module()
1843 mod->state = MODULE_STATE_UNFORMED; in free_module()
1847 ddebug_remove_module(mod->name); in free_module()
1850 module_arch_cleanup(mod); in free_module()
1853 module_unload_free(mod); in free_module()
1856 destroy_params(mod->kp, mod->num_kp); in free_module()
1861 list_del_rcu(&mod->list); in free_module()
1863 module_bug_cleanup(mod); in free_module()
1869 unset_module_init_ro_nx(mod); in free_module()
1870 module_arch_freeing_init(mod); in free_module()
1871 module_memfree(mod->module_init); in free_module()
1872 kfree(mod->args); in free_module()
1873 percpu_modfree(mod); in free_module()
1876 lockdep_free_key_range(mod->module_core, mod->core_size); in free_module()
1879 unset_module_core_ro_nx(mod); in free_module()
1880 module_memfree(mod->module_core); in free_module()
1908 static int verify_export_symbols(struct module *mod) in verify_export_symbols() argument
1917 { mod->syms, mod->num_syms }, in verify_export_symbols()
1918 { mod->gpl_syms, mod->num_gpl_syms }, in verify_export_symbols()
1919 { mod->gpl_future_syms, mod->num_gpl_future_syms }, in verify_export_symbols()
1921 { mod->unused_syms, mod->num_unused_syms }, in verify_export_symbols()
1922 { mod->unused_gpl_syms, mod->num_unused_gpl_syms }, in verify_export_symbols()
1931 mod->name, s->name, module_name(owner)); in verify_export_symbols()
1940 static int simplify_symbols(struct module *mod, const struct load_info *info) in simplify_symbols() argument
1962 mod->name); in simplify_symbols()
1973 ksym = resolve_symbol_wait(mod, info, name); in simplify_symbols()
1985 mod->name, name, PTR_ERR(ksym)); in simplify_symbols()
1992 secbase = (unsigned long)mod_percpu(mod); in simplify_symbols()
2003 static int apply_relocations(struct module *mod, const struct load_info *info) in apply_relocations() argument
2022 info->index.sym, i, mod); in apply_relocations()
2025 info->index.sym, i, mod); in apply_relocations()
2033 unsigned int __weak arch_mod_section_prepend(struct module *mod, in arch_mod_section_prepend() argument
2041 static long get_offset(struct module *mod, unsigned int *size, in get_offset() argument
2046 *size += arch_mod_section_prepend(mod, section); in get_offset()
2056 static void layout_sections(struct module *mod, struct load_info *info) in layout_sections() argument
2083 s->sh_entsize = get_offset(mod, &mod->core_size, s, i); in layout_sections()
2088 mod->core_size = debug_align(mod->core_size); in layout_sections()
2089 mod->core_text_size = mod->core_size; in layout_sections()
2092 mod->core_size = debug_align(mod->core_size); in layout_sections()
2093 mod->core_ro_size = mod->core_size; in layout_sections()
2096 mod->core_size = debug_align(mod->core_size); in layout_sections()
2112 s->sh_entsize = (get_offset(mod, &mod->init_size, s, i) in layout_sections()
2118 mod->init_size = debug_align(mod->init_size); in layout_sections()
2119 mod->init_text_size = mod->init_size; in layout_sections()
2122 mod->init_size = debug_align(mod->init_size); in layout_sections()
2123 mod->init_ro_size = mod->init_size; in layout_sections()
2126 mod->init_size = debug_align(mod->init_size); in layout_sections()
2132 static void set_license(struct module *mod, const char *license) in set_license() argument
2140 mod->name, license); in set_license()
2141 add_taint_module(mod, TAINT_PROPRIETARY_MODULE, in set_license()
2179 static void setup_modinfo(struct module *mod, struct load_info *info) in setup_modinfo() argument
2186 attr->setup(mod, get_modinfo(info, attr->attr.name)); in setup_modinfo()
2190 static void free_modinfo(struct module *mod) in free_modinfo() argument
2197 attr->free(mod); in free_modinfo()
2213 const struct module *mod) in is_exported() argument
2216 if (!mod) in is_exported()
2219 ks = lookup_symbol(name, mod->syms, mod->syms + mod->num_syms); in is_exported()
2292 static void layout_symtab(struct module *mod, struct load_info *info) in layout_symtab() argument
2301 symsect->sh_entsize = get_offset(mod, &mod->init_size, symsect, in layout_symtab()
2318 info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1); in layout_symtab()
2319 info->stroffs = mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym); in layout_symtab()
2320 mod->core_size += strtab_size; in layout_symtab()
2321 mod->core_size = debug_align(mod->core_size); in layout_symtab()
2325 strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect, in layout_symtab()
2330 mod->init_size = ALIGN(mod->init_size, in layout_symtab()
2332 info->mod_kallsyms_init_off = mod->init_size; in layout_symtab()
2333 mod->init_size += sizeof(struct mod_kallsyms); in layout_symtab()
2334 mod->init_size = debug_align(mod->init_size); in layout_symtab()
2342 static void add_kallsyms(struct module *mod, const struct load_info *info) in add_kallsyms() argument
2351 mod->kallsyms = mod->module_init + info->mod_kallsyms_init_off; in add_kallsyms()
2353 mod->kallsyms->symtab = (void *)symsec->sh_addr; in add_kallsyms()
2354 mod->kallsyms->num_symtab = symsec->sh_size / sizeof(Elf_Sym); in add_kallsyms()
2356 mod->kallsyms->strtab = (void *)info->sechdrs[info->index.str].sh_addr; in add_kallsyms()
2359 for (i = 0; i < mod->kallsyms->num_symtab; i++) in add_kallsyms()
2360 mod->kallsyms->symtab[i].st_info in add_kallsyms()
2361 = elf_type(&mod->kallsyms->symtab[i], info); in add_kallsyms()
2364 mod->core_kallsyms.symtab = dst = mod->module_core + info->symoffs; in add_kallsyms()
2365 mod->core_kallsyms.strtab = s = mod->module_core + info->stroffs; in add_kallsyms()
2366 src = mod->kallsyms->symtab; in add_kallsyms()
2367 for (ndst = i = 0; i < mod->kallsyms->num_symtab; i++) { in add_kallsyms()
2371 dst[ndst++].st_name = s - mod->core_kallsyms.strtab; in add_kallsyms()
2372 s += strlcpy(s, &mod->kallsyms->strtab[src[i].st_name], in add_kallsyms()
2376 mod->core_kallsyms.num_symtab = ndst; in add_kallsyms()
2379 static inline void layout_symtab(struct module *mod, struct load_info *info) in layout_symtab() argument
2383 static void add_kallsyms(struct module *mod, const struct load_info *info) in add_kallsyms() argument
2427 static void kmemleak_load_module(const struct module *mod, in kmemleak_load_module() argument
2433 kmemleak_scan_area(mod, sizeof(struct module), GFP_KERNEL); in kmemleak_load_module()
2447 static inline void kmemleak_load_module(const struct module *mod, in kmemleak_load_module() argument
2458 const void *mod = info->hdr; in module_sig_check() local
2461 memcmp(mod + info->len - markerlen, MODULE_SIG_STRING, markerlen) == 0) { in module_sig_check()
2464 err = mod_verify_sig(mod, &info->len); in module_sig_check()
2661 struct module *mod; in setup_load_info() local
2683 info->index.mod = find_sec(info, ".gnu.linkonce.this_module"); in setup_load_info()
2684 if (!info->index.mod) { in setup_load_info()
2689 mod = (void *)info->sechdrs[info->index.mod].sh_addr; in setup_load_info()
2692 pr_warn("%s: module has no symbols (stripped?)\n", mod->name); in setup_load_info()
2699 if (!check_modstruct_version(info->sechdrs, info->index.vers, mod)) in setup_load_info()
2702 return mod; in setup_load_info()
2705 static int check_modinfo(struct module *mod, struct load_info *info, int flags) in check_modinfo() argument
2715 err = try_to_force_load(mod, "bad vermagic"); in check_modinfo()
2720 mod->name, modmagic, vermagic); in check_modinfo()
2725 add_taint_module(mod, TAINT_OOT_MODULE, LOCKDEP_STILL_OK); in check_modinfo()
2728 add_taint_module(mod, TAINT_CRAP, LOCKDEP_STILL_OK); in check_modinfo()
2730 "is unknown, you have been warned.\n", mod->name); in check_modinfo()
2734 set_license(mod, get_modinfo(info, "license")); in check_modinfo()
2739 static int find_module_sections(struct module *mod, struct load_info *info) in find_module_sections() argument
2741 mod->kp = section_objs(info, "__param", in find_module_sections()
2742 sizeof(*mod->kp), &mod->num_kp); in find_module_sections()
2743 mod->syms = section_objs(info, "__ksymtab", in find_module_sections()
2744 sizeof(*mod->syms), &mod->num_syms); in find_module_sections()
2745 mod->crcs = section_addr(info, "__kcrctab"); in find_module_sections()
2746 mod->gpl_syms = section_objs(info, "__ksymtab_gpl", in find_module_sections()
2747 sizeof(*mod->gpl_syms), in find_module_sections()
2748 &mod->num_gpl_syms); in find_module_sections()
2749 mod->gpl_crcs = section_addr(info, "__kcrctab_gpl"); in find_module_sections()
2750 mod->gpl_future_syms = section_objs(info, in find_module_sections()
2752 sizeof(*mod->gpl_future_syms), in find_module_sections()
2753 &mod->num_gpl_future_syms); in find_module_sections()
2754 mod->gpl_future_crcs = section_addr(info, "__kcrctab_gpl_future"); in find_module_sections()
2757 mod->unused_syms = section_objs(info, "__ksymtab_unused", in find_module_sections()
2758 sizeof(*mod->unused_syms), in find_module_sections()
2759 &mod->num_unused_syms); in find_module_sections()
2760 mod->unused_crcs = section_addr(info, "__kcrctab_unused"); in find_module_sections()
2761 mod->unused_gpl_syms = section_objs(info, "__ksymtab_unused_gpl", in find_module_sections()
2762 sizeof(*mod->unused_gpl_syms), in find_module_sections()
2763 &mod->num_unused_gpl_syms); in find_module_sections()
2764 mod->unused_gpl_crcs = section_addr(info, "__kcrctab_unused_gpl"); in find_module_sections()
2767 mod->ctors = section_objs(info, ".ctors", in find_module_sections()
2768 sizeof(*mod->ctors), &mod->num_ctors); in find_module_sections()
2769 if (!mod->ctors) in find_module_sections()
2770 mod->ctors = section_objs(info, ".init_array", in find_module_sections()
2771 sizeof(*mod->ctors), &mod->num_ctors); in find_module_sections()
2778 mod->name); in find_module_sections()
2784 mod->tracepoints_ptrs = section_objs(info, "__tracepoints_ptrs", in find_module_sections()
2785 sizeof(*mod->tracepoints_ptrs), in find_module_sections()
2786 &mod->num_tracepoints); in find_module_sections()
2789 mod->jump_entries = section_objs(info, "__jump_table", in find_module_sections()
2790 sizeof(*mod->jump_entries), in find_module_sections()
2791 &mod->num_jump_entries); in find_module_sections()
2794 mod->trace_events = section_objs(info, "_ftrace_events", in find_module_sections()
2795 sizeof(*mod->trace_events), in find_module_sections()
2796 &mod->num_trace_events); in find_module_sections()
2797 mod->trace_enums = section_objs(info, "_ftrace_enum_map", in find_module_sections()
2798 sizeof(*mod->trace_enums), in find_module_sections()
2799 &mod->num_trace_enums); in find_module_sections()
2802 mod->trace_bprintk_fmt_start = section_objs(info, "__trace_printk_fmt", in find_module_sections()
2803 sizeof(*mod->trace_bprintk_fmt_start), in find_module_sections()
2804 &mod->num_trace_bprintk_fmt); in find_module_sections()
2808 mod->ftrace_callsites = section_objs(info, "__mcount_loc", in find_module_sections()
2809 sizeof(*mod->ftrace_callsites), in find_module_sections()
2810 &mod->num_ftrace_callsites); in find_module_sections()
2813 mod->extable = section_objs(info, "__ex_table", in find_module_sections()
2814 sizeof(*mod->extable), &mod->num_exentries); in find_module_sections()
2817 pr_warn("%s: Ignoring obsolete parameters\n", mod->name); in find_module_sections()
2825 static int move_module(struct module *mod, struct load_info *info) in move_module() argument
2831 ptr = module_alloc_update_bounds(mod->core_size); in move_module()
2841 memset(ptr, 0, mod->core_size); in move_module()
2842 mod->module_core = ptr; in move_module()
2844 if (mod->init_size) { in move_module()
2845 ptr = module_alloc_update_bounds(mod->init_size); in move_module()
2854 module_memfree(mod->module_core); in move_module()
2857 memset(ptr, 0, mod->init_size); in move_module()
2858 mod->module_init = ptr; in move_module()
2860 mod->module_init = NULL; in move_module()
2872 dest = mod->module_init in move_module()
2875 dest = mod->module_core + shdr->sh_entsize; in move_module()
2888 static int check_module_license_and_versions(struct module *mod) in check_module_license_and_versions() argument
2895 if (strcmp(mod->name, "ndiswrapper") == 0) in check_module_license_and_versions()
2899 if (strcmp(mod->name, "driverloader") == 0) in check_module_license_and_versions()
2900 add_taint_module(mod, TAINT_PROPRIETARY_MODULE, in check_module_license_and_versions()
2904 if (strcmp(mod->name, "lve") == 0) in check_module_license_and_versions()
2905 add_taint_module(mod, TAINT_PROPRIETARY_MODULE, in check_module_license_and_versions()
2909 if ((mod->num_syms && !mod->crcs) in check_module_license_and_versions()
2910 || (mod->num_gpl_syms && !mod->gpl_crcs) in check_module_license_and_versions()
2911 || (mod->num_gpl_future_syms && !mod->gpl_future_crcs) in check_module_license_and_versions()
2913 || (mod->num_unused_syms && !mod->unused_crcs) in check_module_license_and_versions()
2914 || (mod->num_unused_gpl_syms && !mod->unused_gpl_crcs) in check_module_license_and_versions()
2917 return try_to_force_load(mod, in check_module_license_and_versions()
2924 static void flush_module_icache(const struct module *mod) in flush_module_icache() argument
2937 if (mod->module_init) in flush_module_icache()
2938 flush_icache_range((unsigned long)mod->module_init, in flush_module_icache()
2939 (unsigned long)mod->module_init in flush_module_icache()
2940 + mod->init_size); in flush_module_icache()
2941 flush_icache_range((unsigned long)mod->module_core, in flush_module_icache()
2942 (unsigned long)mod->module_core + mod->core_size); in flush_module_icache()
2950 struct module *mod) in module_frob_arch_sections() argument
2958 struct module *mod; in layout_and_allocate() local
2961 mod = setup_load_info(info, flags); in layout_and_allocate()
2962 if (IS_ERR(mod)) in layout_and_allocate()
2963 return mod; in layout_and_allocate()
2965 err = check_modinfo(mod, info, flags); in layout_and_allocate()
2971 info->secstrings, mod); in layout_and_allocate()
2981 layout_sections(mod, info); in layout_and_allocate()
2982 layout_symtab(mod, info); in layout_and_allocate()
2985 err = move_module(mod, info); in layout_and_allocate()
2990 mod = (void *)info->sechdrs[info->index.mod].sh_addr; in layout_and_allocate()
2991 kmemleak_load_module(mod, info); in layout_and_allocate()
2992 return mod; in layout_and_allocate()
2996 static void module_deallocate(struct module *mod, struct load_info *info) in module_deallocate() argument
2998 percpu_modfree(mod); in module_deallocate()
2999 module_arch_freeing_init(mod); in module_deallocate()
3000 module_memfree(mod->module_init); in module_deallocate()
3001 module_memfree(mod->module_core); in module_deallocate()
3011 static int post_relocation(struct module *mod, const struct load_info *info) in post_relocation() argument
3014 sort_extable(mod->extable, mod->extable + mod->num_exentries); in post_relocation()
3017 percpu_modcopy(mod, (void *)info->sechdrs[info->index.pcpu].sh_addr, in post_relocation()
3021 add_kallsyms(mod, info); in post_relocation()
3024 return module_finalize(info->hdr, info->sechdrs, mod); in post_relocation()
3030 struct module *mod; in finished_loading() local
3040 mod = find_module_all(name, strlen(name), true); in finished_loading()
3041 ret = !mod || mod->state == MODULE_STATE_LIVE in finished_loading()
3042 || mod->state == MODULE_STATE_GOING; in finished_loading()
3049 static void do_mod_ctors(struct module *mod) in do_mod_ctors() argument
3054 for (i = 0; i < mod->num_ctors; i++) in do_mod_ctors()
3055 mod->ctors[i](); in do_mod_ctors()
3078 static noinline int do_init_module(struct module *mod) in do_init_module() argument
3088 freeinit->module_init = mod->module_init; in do_init_module()
3096 do_mod_ctors(mod); in do_init_module()
3098 if (mod->init != NULL) in do_init_module()
3099 ret = do_one_initcall(mod->init); in do_init_module()
3107 __func__, mod->name, ret, __func__); in do_init_module()
3112 mod->state = MODULE_STATE_LIVE; in do_init_module()
3114 MODULE_STATE_LIVE, mod); in do_init_module()
3138 module_put(mod); in do_init_module()
3139 trim_init_extable(mod); in do_init_module()
3142 rcu_assign_pointer(mod->kallsyms, &mod->core_kallsyms); in do_init_module()
3144 unset_module_init_ro_nx(mod); in do_init_module()
3145 module_arch_freeing_init(mod); in do_init_module()
3146 mod->module_init = NULL; in do_init_module()
3147 mod->init_size = 0; in do_init_module()
3148 mod->init_ro_size = 0; in do_init_module()
3149 mod->init_text_size = 0; in do_init_module()
3166 mod->state = MODULE_STATE_GOING; in do_init_module()
3168 module_put(mod); in do_init_module()
3170 MODULE_STATE_GOING, mod); in do_init_module()
3171 free_module(mod); in do_init_module()
3189 static int add_unformed_module(struct module *mod) in add_unformed_module() argument
3194 mod->state = MODULE_STATE_UNFORMED; in add_unformed_module()
3198 old = find_module_all(mod->name, strlen(mod->name), true); in add_unformed_module()
3205 finished_loading(mod->name)); in add_unformed_module()
3213 list_add_rcu(&mod->list, &modules); in add_unformed_module()
3222 static int complete_formation(struct module *mod, struct load_info *info) in complete_formation() argument
3229 err = verify_export_symbols(mod); in complete_formation()
3234 module_bug_finalize(info->hdr, info->sechdrs, mod); in complete_formation()
3237 set_section_ro_nx(mod->module_core, in complete_formation()
3238 mod->core_text_size, in complete_formation()
3239 mod->core_ro_size, in complete_formation()
3240 mod->core_size); in complete_formation()
3243 set_section_ro_nx(mod->module_init, in complete_formation()
3244 mod->init_text_size, in complete_formation()
3245 mod->init_ro_size, in complete_formation()
3246 mod->init_size); in complete_formation()
3250 mod->state = MODULE_STATE_COMING; in complete_formation()
3254 MODULE_STATE_COMING, mod); in complete_formation()
3276 struct module *mod; in load_module() local
3289 mod = layout_and_allocate(info, flags); in load_module()
3290 if (IS_ERR(mod)) { in load_module()
3291 err = PTR_ERR(mod); in load_module()
3296 err = add_unformed_module(mod); in load_module()
3301 mod->sig_ok = info->sig_ok; in load_module()
3302 if (!mod->sig_ok) { in load_module()
3305 "kernel\n", mod->name); in load_module()
3306 add_taint_module(mod, TAINT_UNSIGNED_MODULE, LOCKDEP_STILL_OK); in load_module()
3311 err = percpu_modalloc(mod, info); in load_module()
3316 err = module_unload_init(mod); in load_module()
3322 err = find_module_sections(mod, info); in load_module()
3326 err = check_module_license_and_versions(mod); in load_module()
3331 setup_modinfo(mod, info); in load_module()
3334 err = simplify_symbols(mod, info); in load_module()
3338 err = apply_relocations(mod, info); in load_module()
3342 err = post_relocation(mod, info); in load_module()
3346 flush_module_icache(mod); in load_module()
3349 mod->args = strndup_user(uargs, ~0UL >> 1); in load_module()
3350 if (IS_ERR(mod->args)) { in load_module()
3351 err = PTR_ERR(mod->args); in load_module()
3358 ftrace_module_init(mod); in load_module()
3361 err = complete_formation(mod, info); in load_module()
3366 after_dashes = parse_args(mod->name, mod->args, mod->kp, mod->num_kp, in load_module()
3373 mod->name, after_dashes); in load_module()
3377 err = mod_sysfs_setup(mod, info, mod->kp, mod->num_kp); in load_module()
3385 trace_module_load(mod); in load_module()
3387 return do_init_module(mod); in load_module()
3392 module_bug_cleanup(mod); in load_module()
3396 MODULE_STATE_GOING, mod); in load_module()
3399 unset_module_init_ro_nx(mod); in load_module()
3400 unset_module_core_ro_nx(mod); in load_module()
3405 kfree(mod->args); in load_module()
3407 module_arch_cleanup(mod); in load_module()
3409 free_modinfo(mod); in load_module()
3411 module_unload_free(mod); in load_module()
3415 list_del_rcu(&mod->list); in load_module()
3422 lockdep_free_key_range(mod->module_core, mod->core_size); in load_module()
3424 module_deallocate(mod, info); in load_module()
3495 static const char *get_ksymbol(struct module *mod, in get_ksymbol() argument
3502 struct mod_kallsyms *kallsyms = rcu_dereference_sched(mod->kallsyms); in get_ksymbol()
3505 if (within_module_init(addr, mod)) in get_ksymbol()
3506 nextval = (unsigned long)mod->module_init+mod->init_text_size; in get_ksymbol()
3508 nextval = (unsigned long)mod->module_core+mod->core_text_size; in get_ksymbol()
3548 struct module *mod; in module_address_lookup() local
3552 list_for_each_entry_rcu(mod, &modules, list) { in module_address_lookup()
3553 if (mod->state == MODULE_STATE_UNFORMED) in module_address_lookup()
3555 if (within_module(addr, mod)) { in module_address_lookup()
3557 *modname = mod->name; in module_address_lookup()
3558 ret = get_ksymbol(mod, addr, size, offset); in module_address_lookup()
3573 struct module *mod; in lookup_module_symbol_name() local
3576 list_for_each_entry_rcu(mod, &modules, list) { in lookup_module_symbol_name()
3577 if (mod->state == MODULE_STATE_UNFORMED) in lookup_module_symbol_name()
3579 if (within_module(addr, mod)) { in lookup_module_symbol_name()
3582 sym = get_ksymbol(mod, addr, NULL, NULL); in lookup_module_symbol_name()
3598 struct module *mod; in lookup_module_symbol_attrs() local
3601 list_for_each_entry_rcu(mod, &modules, list) { in lookup_module_symbol_attrs()
3602 if (mod->state == MODULE_STATE_UNFORMED) in lookup_module_symbol_attrs()
3604 if (within_module(addr, mod)) { in lookup_module_symbol_attrs()
3607 sym = get_ksymbol(mod, addr, size, offset); in lookup_module_symbol_attrs()
3611 strlcpy(modname, mod->name, MODULE_NAME_LEN); in lookup_module_symbol_attrs()
3626 struct module *mod; in module_get_kallsym() local
3629 list_for_each_entry_rcu(mod, &modules, list) { in module_get_kallsym()
3632 if (mod->state == MODULE_STATE_UNFORMED) in module_get_kallsym()
3634 kallsyms = rcu_dereference_sched(mod->kallsyms); in module_get_kallsym()
3639 strlcpy(module_name, mod->name, MODULE_NAME_LEN); in module_get_kallsym()
3640 *exported = is_exported(name, *value, mod); in module_get_kallsym()
3650 static unsigned long mod_find_symname(struct module *mod, const char *name) in mod_find_symname() argument
3653 struct mod_kallsyms *kallsyms = rcu_dereference_sched(mod->kallsyms); in mod_find_symname()
3665 struct module *mod; in module_kallsyms_lookup_name() local
3672 if ((mod = find_module_all(name, colon - name, false)) != NULL) in module_kallsyms_lookup_name()
3673 ret = mod_find_symname(mod, colon+1); in module_kallsyms_lookup_name()
3675 list_for_each_entry_rcu(mod, &modules, list) { in module_kallsyms_lookup_name()
3676 if (mod->state == MODULE_STATE_UNFORMED) in module_kallsyms_lookup_name()
3678 if ((ret = mod_find_symname(mod, name)) != 0) in module_kallsyms_lookup_name()
3690 struct module *mod; in module_kallsyms_on_each_symbol() local
3694 list_for_each_entry(mod, &modules, list) { in module_kallsyms_on_each_symbol()
3696 struct mod_kallsyms *kallsyms = mod->kallsyms; in module_kallsyms_on_each_symbol()
3698 if (mod->state == MODULE_STATE_UNFORMED) in module_kallsyms_on_each_symbol()
3702 mod, kallsyms->symtab[i].st_value); in module_kallsyms_on_each_symbol()
3711 static char *module_flags(struct module *mod, char *buf) in module_flags() argument
3715 BUG_ON(mod->state == MODULE_STATE_UNFORMED); in module_flags()
3716 if (mod->taints || in module_flags()
3717 mod->state == MODULE_STATE_GOING || in module_flags()
3718 mod->state == MODULE_STATE_COMING) { in module_flags()
3720 bx += module_flags_taint(mod, buf + bx); in module_flags()
3722 if (mod->state == MODULE_STATE_GOING) in module_flags()
3725 if (mod->state == MODULE_STATE_COMING) in module_flags()
3754 struct module *mod = list_entry(p, struct module, list); in m_show() local
3758 if (mod->state == MODULE_STATE_UNFORMED) in m_show()
3762 mod->name, mod->init_size + mod->core_size); in m_show()
3763 print_unload_info(m, mod); in m_show()
3767 mod->state == MODULE_STATE_GOING ? "Unloading" : in m_show()
3768 mod->state == MODULE_STATE_COMING ? "Loading" : in m_show()
3771 seq_printf(m, " 0x%pK", mod->module_core); in m_show()
3774 if (mod->taints) in m_show()
3775 seq_printf(m, " %s", module_flags(mod, buf)); in m_show()
3817 struct module *mod; in search_module_extables() local
3820 list_for_each_entry_rcu(mod, &modules, list) { in search_module_extables()
3821 if (mod->state == MODULE_STATE_UNFORMED) in search_module_extables()
3823 if (mod->num_exentries == 0) in search_module_extables()
3826 e = search_extable(mod->extable, in search_module_extables()
3827 mod->extable + mod->num_exentries - 1, in search_module_extables()
3866 struct module *mod; in __module_address() local
3871 list_for_each_entry_rcu(mod, &modules, list) { in __module_address()
3872 if (mod->state == MODULE_STATE_UNFORMED) in __module_address()
3874 if (within_module(addr, mod)) in __module_address()
3875 return mod; in __module_address()
3909 struct module *mod = __module_address(addr); in __module_text_address() local
3910 if (mod) { in __module_text_address()
3912 if (!within(addr, mod->module_init, mod->init_text_size) in __module_text_address()
3913 && !within(addr, mod->module_core, mod->core_text_size)) in __module_text_address()
3914 mod = NULL; in __module_text_address()
3916 return mod; in __module_text_address()
3923 struct module *mod; in print_modules() local
3929 list_for_each_entry_rcu(mod, &modules, list) { in print_modules()
3930 if (mod->state == MODULE_STATE_UNFORMED) in print_modules()
3932 pr_cont(" %s%s", mod->name, module_flags(mod, buf)); in print_modules()
3943 void module_layout(struct module *mod, in module_layout() argument