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Lines Matching refs:e

95 		Node *e = list_entry(l, Node, list);  in check_file()  local
100 if (!test_bit(Enabled, &e->flags)) in check_file()
104 if (!test_bit(Magic, &e->flags)) { in check_file()
105 if (p && !strcmp(e->magic, p + 1)) in check_file()
106 return e; in check_file()
111 s = bprm->buf + e->offset; in check_file()
112 if (e->mask) { in check_file()
113 for (j = 0; j < e->size; j++) in check_file()
114 if ((*s++ ^ e->magic[j]) & e->mask[j]) in check_file()
117 for (j = 0; j < e->size; j++) in check_file()
118 if ((*s++ ^ e->magic[j])) in check_file()
121 if (j == e->size) in check_file()
122 return e; in check_file()
272 static char *check_special_flags(char *sfs, Node *e) in check_special_flags() argument
283 e->flags |= MISC_FMT_PRESERVE_ARGV0; in check_special_flags()
288 e->flags |= MISC_FMT_OPEN_BINARY; in check_special_flags()
295 e->flags |= (MISC_FMT_CREDENTIALS | in check_special_flags()
301 e->flags |= MISC_FMT_OPEN_FILE; in check_special_flags()
318 Node *e; in create_entry() local
332 e = kmalloc(memsize, GFP_KERNEL); in create_entry()
333 if (!e) in create_entry()
336 p = buf = (char *)e + sizeof(Node); in create_entry()
338 memset(e, 0, sizeof(Node)); in create_entry()
350 e->name = p; in create_entry()
355 if (!e->name[0] || in create_entry()
356 !strcmp(e->name, ".") || in create_entry()
357 !strcmp(e->name, "..") || in create_entry()
358 strchr(e->name, '/')) in create_entry()
361 pr_debug("register: name: {%s}\n", e->name); in create_entry()
367 e->flags = 1 << Enabled; in create_entry()
371 e->flags = (1 << Enabled) | (1 << Magic); in create_entry()
379 if (test_bit(Magic, &e->flags)) { in create_entry()
388 e->offset = simple_strtoul(p, &p, 10); in create_entry()
391 pr_debug("register: offset: %#x\n", e->offset); in create_entry()
394 e->magic = p; in create_entry()
398 if (!e->magic[0]) in create_entry()
403 DUMP_PREFIX_NONE, e->magic, p - e->magic); in create_entry()
406 e->mask = p; in create_entry()
410 if (!e->mask[0]) { in create_entry()
411 e->mask = NULL; in create_entry()
416 DUMP_PREFIX_NONE, e->mask, p - e->mask); in create_entry()
424 e->size = string_unescape_inplace(e->magic, UNESCAPE_HEX); in create_entry()
425 if (e->mask && in create_entry()
426 string_unescape_inplace(e->mask, UNESCAPE_HEX) != e->size) in create_entry()
428 if (e->size + e->offset > BINPRM_BUF_SIZE) in create_entry()
430 pr_debug("register: magic/mask length: %i\n", e->size); in create_entry()
434 DUMP_PREFIX_NONE, e->magic, e->size); in create_entry()
436 if (e->mask) { in create_entry()
438 char *masked = kmalloc(e->size, GFP_KERNEL); in create_entry()
442 DUMP_PREFIX_NONE, e->mask, e->size); in create_entry()
445 for (i = 0; i < e->size; ++i) in create_entry()
446 masked[i] = e->magic[i] & e->mask[i]; in create_entry()
449 DUMP_PREFIX_NONE, masked, e->size); in create_entry()
465 e->magic = p; in create_entry()
470 if (!e->magic[0] || strchr(e->magic, '/')) in create_entry()
472 pr_debug("register: extension: {%s}\n", e->magic); in create_entry()
482 e->interpreter = p; in create_entry()
487 if (!e->interpreter[0]) in create_entry()
489 pr_debug("register: interpreter: {%s}\n", e->interpreter); in create_entry()
492 p = check_special_flags(p, e); in create_entry()
498 return e; in create_entry()
504 kfree(e); in create_entry()
507 kfree(e); in create_entry()
538 static void entry_status(Node *e, char *page) in entry_status() argument
543 if (test_bit(Enabled, &e->flags)) in entry_status()
551 dp += sprintf(dp, "%s\ninterpreter %s\n", status, e->interpreter); in entry_status()
555 if (e->flags & MISC_FMT_PRESERVE_ARGV0) in entry_status()
557 if (e->flags & MISC_FMT_OPEN_BINARY) in entry_status()
559 if (e->flags & MISC_FMT_CREDENTIALS) in entry_status()
561 if (e->flags & MISC_FMT_OPEN_FILE) in entry_status()
565 if (!test_bit(Magic, &e->flags)) { in entry_status()
566 sprintf(dp, "extension .%s\n", e->magic); in entry_status()
568 dp += sprintf(dp, "offset %i\nmagic ", e->offset); in entry_status()
569 dp = bin2hex(dp, e->magic, e->size); in entry_status()
570 if (e->mask) { in entry_status()
572 dp = bin2hex(dp, e->mask, e->size); in entry_status()
598 static void kill_node(Node *e) in kill_node() argument
603 dentry = e->dentry; in kill_node()
605 list_del_init(&e->list); in kill_node()
606 e->dentry = NULL; in kill_node()
610 if ((e->flags & MISC_FMT_OPEN_FILE) && e->interp_file) { in kill_node()
611 filp_close(e->interp_file, NULL); in kill_node()
612 e->interp_file = NULL; in kill_node()
628 Node *e = file_inode(file)->i_private; in bm_entry_read() local
636 entry_status(e, page); in bm_entry_read()
648 Node *e = file_inode(file)->i_private; in bm_entry_write() local
654 clear_bit(Enabled, &e->flags); in bm_entry_write()
658 set_bit(Enabled, &e->flags); in bm_entry_write()
665 kill_node(e); in bm_entry_write()
687 Node *e; in bm_register_write() local
693 e = create_entry(buffer, count); in bm_register_write()
695 if (IS_ERR(e)) in bm_register_write()
696 return PTR_ERR(e); in bm_register_write()
699 dentry = lookup_one_len(e->name, root, strlen(e->name)); in bm_register_write()
721 if (e->flags & MISC_FMT_OPEN_FILE) { in bm_register_write()
724 f = open_exec(e->interpreter); in bm_register_write()
727 pr_notice("register: failed to install interpreter file %s\n", e->interpreter); in bm_register_write()
733 e->interp_file = f; in bm_register_write()
736 e->dentry = dget(dentry); in bm_register_write()
737 inode->i_private = e; in bm_register_write()
742 list_add(&e->list, &entries); in bm_register_write()
752 kfree(e); in bm_register_write()