Lines Matching refs:e
94 Node *e; in search_binfmt_handler() local
97 list_for_each_entry(e, &misc->entries, list) { in search_binfmt_handler()
102 if (!test_bit(Enabled, &e->flags)) in search_binfmt_handler()
106 if (!test_bit(Magic, &e->flags)) { in search_binfmt_handler()
107 if (p && !strcmp(e->magic, p + 1)) in search_binfmt_handler()
108 return e; in search_binfmt_handler()
113 s = bprm->buf + e->offset; in search_binfmt_handler()
114 if (e->mask) { in search_binfmt_handler()
115 for (j = 0; j < e->size; j++) in search_binfmt_handler()
116 if ((*s++ ^ e->magic[j]) & e->mask[j]) in search_binfmt_handler()
119 for (j = 0; j < e->size; j++) in search_binfmt_handler()
120 if ((*s++ ^ e->magic[j])) in search_binfmt_handler()
123 if (j == e->size) in search_binfmt_handler()
124 return e; in search_binfmt_handler()
143 Node *e; in get_binfmt_handler() local
146 e = search_binfmt_handler(misc, bprm); in get_binfmt_handler()
147 if (e) in get_binfmt_handler()
148 refcount_inc(&e->users); in get_binfmt_handler()
150 return e; in get_binfmt_handler()
161 static void put_binfmt_handler(Node *e) in put_binfmt_handler() argument
163 if (refcount_dec_and_test(&e->users)) { in put_binfmt_handler()
164 if (e->flags & MISC_FMT_OPEN_FILE) in put_binfmt_handler()
165 filp_close(e->interp_file, NULL); in put_binfmt_handler()
166 kfree(e); in put_binfmt_handler()
305 static char *check_special_flags(char *sfs, Node *e) in check_special_flags() argument
316 e->flags |= MISC_FMT_PRESERVE_ARGV0; in check_special_flags()
321 e->flags |= MISC_FMT_OPEN_BINARY; in check_special_flags()
328 e->flags |= (MISC_FMT_CREDENTIALS | in check_special_flags()
334 e->flags |= MISC_FMT_OPEN_FILE; in check_special_flags()
351 Node *e; in create_entry() local
365 e = kmalloc(memsize, GFP_KERNEL_ACCOUNT); in create_entry()
366 if (!e) in create_entry()
369 p = buf = (char *)e + sizeof(Node); in create_entry()
371 memset(e, 0, sizeof(Node)); in create_entry()
383 e->name = p; in create_entry()
388 if (!e->name[0] || in create_entry()
389 !strcmp(e->name, ".") || in create_entry()
390 !strcmp(e->name, "..") || in create_entry()
391 strchr(e->name, '/')) in create_entry()
394 pr_debug("register: name: {%s}\n", e->name); in create_entry()
400 e->flags = 1 << Enabled; in create_entry()
404 e->flags = (1 << Enabled) | (1 << Magic); in create_entry()
412 if (test_bit(Magic, &e->flags)) { in create_entry()
422 int r = kstrtoint(p, 10, &e->offset); in create_entry()
423 if (r != 0 || e->offset < 0) in create_entry()
429 pr_debug("register: offset: %#x\n", e->offset); in create_entry()
432 e->magic = p; in create_entry()
436 if (!e->magic[0]) in create_entry()
441 DUMP_PREFIX_NONE, e->magic, p - e->magic); in create_entry()
444 e->mask = p; in create_entry()
448 if (!e->mask[0]) { in create_entry()
449 e->mask = NULL; in create_entry()
454 DUMP_PREFIX_NONE, e->mask, p - e->mask); in create_entry()
462 e->size = string_unescape_inplace(e->magic, UNESCAPE_HEX); in create_entry()
463 if (e->mask && in create_entry()
464 string_unescape_inplace(e->mask, UNESCAPE_HEX) != e->size) in create_entry()
466 if (e->size > BINPRM_BUF_SIZE || in create_entry()
467 BINPRM_BUF_SIZE - e->size < e->offset) in create_entry()
469 pr_debug("register: magic/mask length: %i\n", e->size); in create_entry()
473 DUMP_PREFIX_NONE, e->magic, e->size); in create_entry()
475 if (e->mask) { in create_entry()
477 char *masked = kmalloc(e->size, GFP_KERNEL_ACCOUNT); in create_entry()
481 DUMP_PREFIX_NONE, e->mask, e->size); in create_entry()
484 for (i = 0; i < e->size; ++i) in create_entry()
485 masked[i] = e->magic[i] & e->mask[i]; in create_entry()
488 DUMP_PREFIX_NONE, masked, e->size); in create_entry()
504 e->magic = p; in create_entry()
509 if (!e->magic[0] || strchr(e->magic, '/')) in create_entry()
511 pr_debug("register: extension: {%s}\n", e->magic); in create_entry()
521 e->interpreter = p; in create_entry()
526 if (!e->interpreter[0]) in create_entry()
528 pr_debug("register: interpreter: {%s}\n", e->interpreter); in create_entry()
531 p = check_special_flags(p, e); in create_entry()
537 return e; in create_entry()
543 kfree(e); in create_entry()
546 kfree(e); in create_entry()
577 static void entry_status(Node *e, char *page) in entry_status() argument
582 if (test_bit(Enabled, &e->flags)) in entry_status()
590 dp += sprintf(dp, "%s\ninterpreter %s\n", status, e->interpreter); in entry_status()
594 if (e->flags & MISC_FMT_PRESERVE_ARGV0) in entry_status()
596 if (e->flags & MISC_FMT_OPEN_BINARY) in entry_status()
598 if (e->flags & MISC_FMT_CREDENTIALS) in entry_status()
600 if (e->flags & MISC_FMT_OPEN_FILE) in entry_status()
604 if (!test_bit(Magic, &e->flags)) { in entry_status()
605 sprintf(dp, "extension .%s\n", e->magic); in entry_status()
607 dp += sprintf(dp, "offset %i\nmagic ", e->offset); in entry_status()
608 dp = bin2hex(dp, e->magic, e->size); in entry_status()
609 if (e->mask) { in entry_status()
611 dp = bin2hex(dp, e->mask, e->size); in entry_status()
661 Node *e = inode->i_private; in bm_evict_inode() local
665 if (e) { in bm_evict_inode()
670 if (!list_empty(&e->list)) in bm_evict_inode()
671 list_del_init(&e->list); in bm_evict_inode()
673 put_binfmt_handler(e); in bm_evict_inode()
689 static void remove_binfmt_handler(struct binfmt_misc *misc, Node *e) in remove_binfmt_handler() argument
692 list_del_init(&e->list); in remove_binfmt_handler()
694 locked_recursive_removal(e->dentry, NULL); in remove_binfmt_handler()
702 Node *e = file_inode(file)->i_private; in bm_entry_read() local
710 entry_status(e, page); in bm_entry_read()
722 Node *e = inode->i_private; in bm_entry_write() local
728 clear_bit(Enabled, &e->flags); in bm_entry_write()
732 set_bit(Enabled, &e->flags); in bm_entry_write()
748 if (!list_empty(&e->list)) in bm_entry_write()
749 remove_binfmt_handler(i_binfmt_misc(inode), e); in bm_entry_write()
771 Node *e; in bm_register_write() local
779 e = create_entry(buffer, count); in bm_register_write()
781 if (IS_ERR(e)) in bm_register_write()
782 return PTR_ERR(e); in bm_register_write()
784 if (e->flags & MISC_FMT_OPEN_FILE) { in bm_register_write()
795 f = open_exec(e->interpreter); in bm_register_write()
799 e->interpreter); in bm_register_write()
800 kfree(e); in bm_register_write()
803 e->interp_file = f; in bm_register_write()
807 dentry = lookup_noperm(&QSTR(e->name), root); in bm_register_write()
822 refcount_set(&e->users, 1); in bm_register_write()
823 e->dentry = dget(dentry); in bm_register_write()
824 inode->i_private = e; in bm_register_write()
830 list_add(&e->list, &misc->entries); in bm_register_write()
842 kfree(e); in bm_register_write()
871 Node *e, *next; in bm_status_write() local
898 list_for_each_entry_safe(e, next, &misc->entries, list) in bm_status_write()
899 remove_binfmt_handler(misc, e); in bm_status_write()