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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2013 Politecnico di Torino, Italy
4 * TORSEC group -- https://security.polito.it
5 *
6 * Author: Roberto Sassu <[email protected]>
7 *
8 * File: ima_template_lib.c
9 * Library of supported template fields.
10 */
11
12#include "ima_template_lib.h"
13#include <linux/xattr.h>
14#include <linux/evm.h>
15
16static bool ima_template_hash_algo_allowed(u8 algo)
17{
18 if (algo == HASH_ALGO_SHA1 || algo == HASH_ALGO_MD5)
19 return true;
20
21 return false;
22}
23
24enum data_formats {
25 DATA_FMT_DIGEST = 0,
26 DATA_FMT_DIGEST_WITH_ALGO,
27 DATA_FMT_DIGEST_WITH_TYPE_AND_ALGO,
28 DATA_FMT_STRING,
29 DATA_FMT_HEX,
30 DATA_FMT_UINT
31};
32
33enum digest_type {
34 DIGEST_TYPE_IMA,
35 DIGEST_TYPE_VERITY,
36 DIGEST_TYPE__LAST
37};
38
39#define DIGEST_TYPE_NAME_LEN_MAX 7 /* including NUL */
40static const char * const digest_type_name[DIGEST_TYPE__LAST] = {
41 [DIGEST_TYPE_IMA] = "ima",
42 [DIGEST_TYPE_VERITY] = "verity"
43};
44
45static int ima_write_template_field_data(const void *data, const u32 datalen,
46 enum data_formats datafmt,
47 struct ima_field_data *field_data)
48{
49 u8 *buf, *buf_ptr;
50 u32 buflen = datalen;
51
52 if (datafmt == DATA_FMT_STRING)
53 buflen = datalen + 1;
54
55 buf = kzalloc(buflen, GFP_KERNEL);
56 if (!buf)
57 return -ENOMEM;
58
59 memcpy(buf, data, datalen);
60
61 /*
62 * Replace all space characters with underscore for event names and
63 * strings. This avoid that, during the parsing of a measurements list,
64 * filenames with spaces or that end with the suffix ' (deleted)' are
65 * split into multiple template fields (the space is the delimitator
66 * character for measurements lists in ASCII format).
67 */
68 if (datafmt == DATA_FMT_STRING) {
69 for (buf_ptr = buf; buf_ptr - buf < datalen; buf_ptr++)
70 if (*buf_ptr == ' ')
71 *buf_ptr = '_';
72 }
73
74 field_data->data = buf;
75 field_data->len = buflen;
76 return 0;
77}
78
79static void ima_show_template_data_ascii(struct seq_file *m,
80 enum ima_show_type show,
81 enum data_formats datafmt,
82 struct ima_field_data *field_data)
83{
84 u8 *buf_ptr = field_data->data;
85 u32 buflen = field_data->len;
86
87 switch (datafmt) {
88 case DATA_FMT_DIGEST_WITH_TYPE_AND_ALGO:
89 case DATA_FMT_DIGEST_WITH_ALGO:
90 buf_ptr = strrchr(field_data->data, ':');
91 if (buf_ptr != field_data->data)
92 seq_printf(m, "%s", field_data->data);
93
94 /* skip ':' and '\0' */
95 buf_ptr += 2;
96 buflen -= buf_ptr - field_data->data;
97 fallthrough;
98 case DATA_FMT_DIGEST:
99 case DATA_FMT_HEX:
100 if (!buflen)
101 break;
102 ima_print_digest(m, buf_ptr, buflen);
103 break;
104 case DATA_FMT_STRING:
105 seq_printf(m, "%s", buf_ptr);
106 break;
107 case DATA_FMT_UINT:
108 switch (field_data->len) {
109 case sizeof(u8):
110 seq_printf(m, "%u", *(u8 *)buf_ptr);
111 break;
112 case sizeof(u16):
113 if (ima_canonical_fmt)
114 seq_printf(m, "%u",
115 le16_to_cpu(*(__le16 *)buf_ptr));
116 else
117 seq_printf(m, "%u", *(u16 *)buf_ptr);
118 break;
119 case sizeof(u32):
120 if (ima_canonical_fmt)
121 seq_printf(m, "%u",
122 le32_to_cpu(*(__le32 *)buf_ptr));
123 else
124 seq_printf(m, "%u", *(u32 *)buf_ptr);
125 break;
126 case sizeof(u64):
127 if (ima_canonical_fmt)
128 seq_printf(m, "%llu",
129 le64_to_cpu(*(__le64 *)buf_ptr));
130 else
131 seq_printf(m, "%llu", *(u64 *)buf_ptr);
132 break;
133 default:
134 break;
135 }
136 break;
137 default:
138 break;
139 }
140}
141
142static void ima_show_template_data_binary(struct seq_file *m,
143 enum ima_show_type show,
144 enum data_formats datafmt,
145 struct ima_field_data *field_data)
146{
147 u32 len = (show == IMA_SHOW_BINARY_OLD_STRING_FMT) ?
148 strlen(field_data->data) : field_data->len;
149
150 if (show != IMA_SHOW_BINARY_NO_FIELD_LEN) {
151 u32 field_len = !ima_canonical_fmt ?
152 len : (__force u32)cpu_to_le32(len);
153
154 ima_putc(m, &field_len, sizeof(field_len));
155 }
156
157 if (!len)
158 return;
159
160 ima_putc(m, field_data->data, len);
161}
162
163static void ima_show_template_field_data(struct seq_file *m,
164 enum ima_show_type show,
165 enum data_formats datafmt,
166 struct ima_field_data *field_data)
167{
168 switch (show) {
169 case IMA_SHOW_ASCII:
170 ima_show_template_data_ascii(m, show, datafmt, field_data);
171 break;
172 case IMA_SHOW_BINARY:
173 case IMA_SHOW_BINARY_NO_FIELD_LEN:
174 case IMA_SHOW_BINARY_OLD_STRING_FMT:
175 ima_show_template_data_binary(m, show, datafmt, field_data);
176 break;
177 default:
178 break;
179 }
180}
181
182void ima_show_template_digest(struct seq_file *m, enum ima_show_type show,
183 struct ima_field_data *field_data)
184{
185 ima_show_template_field_data(m, show, DATA_FMT_DIGEST, field_data);
186}
187
188void ima_show_template_digest_ng(struct seq_file *m, enum ima_show_type show,
189 struct ima_field_data *field_data)
190{
191 ima_show_template_field_data(m, show, DATA_FMT_DIGEST_WITH_ALGO,
192 field_data);
193}
194
195void ima_show_template_digest_ngv2(struct seq_file *m, enum ima_show_type show,
196 struct ima_field_data *field_data)
197{
198 ima_show_template_field_data(m, show,
199 DATA_FMT_DIGEST_WITH_TYPE_AND_ALGO,
200 field_data);
201}
202
203void ima_show_template_string(struct seq_file *m, enum ima_show_type show,
204 struct ima_field_data *field_data)
205{
206 ima_show_template_field_data(m, show, DATA_FMT_STRING, field_data);
207}
208
209void ima_show_template_sig(struct seq_file *m, enum ima_show_type show,
210 struct ima_field_data *field_data)
211{
212 ima_show_template_field_data(m, show, DATA_FMT_HEX, field_data);
213}
214
215void ima_show_template_buf(struct seq_file *m, enum ima_show_type show,
216 struct ima_field_data *field_data)
217{
218 ima_show_template_field_data(m, show, DATA_FMT_HEX, field_data);
219}
220
221void ima_show_template_uint(struct seq_file *m, enum ima_show_type show,
222 struct ima_field_data *field_data)
223{
224 ima_show_template_field_data(m, show, DATA_FMT_UINT, field_data);
225}
226
227/**
228 * ima_parse_buf() - Parses lengths and data from an input buffer
229 * @bufstartp: Buffer start address.
230 * @bufendp: Buffer end address.
231 * @bufcurp: Pointer to remaining (non-parsed) data.
232 * @maxfields: Length of fields array.
233 * @fields: Array containing lengths and pointers of parsed data.
234 * @curfields: Number of array items containing parsed data.
235 * @len_mask: Bitmap (if bit is set, data length should not be parsed).
236 * @enforce_mask: Check if curfields == maxfields and/or bufcurp == bufendp.
237 * @bufname: String identifier of the input buffer.
238 *
239 * Return: 0 on success, -EINVAL on error.
240 */
241int ima_parse_buf(void *bufstartp, void *bufendp, void **bufcurp,
242 int maxfields, struct ima_field_data *fields, int *curfields,
243 unsigned long *len_mask, int enforce_mask, char *bufname)
244{
245 void *bufp = bufstartp;
246 int i;
247
248 for (i = 0; i < maxfields; i++) {
249 if (len_mask == NULL || !test_bit(i, len_mask)) {
250 if (bufp > (bufendp - sizeof(u32)))
251 break;
252
253 if (ima_canonical_fmt)
254 fields[i].len = le32_to_cpu(*(__le32 *)bufp);
255 else
256 fields[i].len = *(u32 *)bufp;
257
258 bufp += sizeof(u32);
259 }
260
261 if (bufp > (bufendp - fields[i].len))
262 break;
263
264 fields[i].data = bufp;
265 bufp += fields[i].len;
266 }
267
268 if ((enforce_mask & ENFORCE_FIELDS) && i != maxfields) {
269 pr_err("%s: nr of fields mismatch: expected: %d, current: %d\n",
270 bufname, maxfields, i);
271 return -EINVAL;
272 }
273
274 if ((enforce_mask & ENFORCE_BUFEND) && bufp != bufendp) {
275 pr_err("%s: buf end mismatch: expected: %p, current: %p\n",
276 bufname, bufendp, bufp);
277 return -EINVAL;
278 }
279
280 if (curfields)
281 *curfields = i;
282
283 if (bufcurp)
284 *bufcurp = bufp;
285
286 return 0;
287}
288
289static int ima_eventdigest_init_common(const u8 *digest, u32 digestsize,
290 u8 digest_type, u8 hash_algo,
291 struct ima_field_data *field_data)
292{
293 /*
294 * digest formats:
295 * - DATA_FMT_DIGEST: digest
296 * - DATA_FMT_DIGEST_WITH_ALGO: <hash algo> + ':' + '\0' + digest,
297 * - DATA_FMT_DIGEST_WITH_TYPE_AND_ALGO:
298 * <digest type> + ':' + <hash algo> + ':' + '\0' + digest,
299 *
300 * where 'DATA_FMT_DIGEST' is the original digest format ('d')
301 * with a hash size limitation of 20 bytes,
302 * where <digest type> is either "ima" or "verity",
303 * where <hash algo> is the hash_algo_name[] string.
304 */
305 u8 buffer[DIGEST_TYPE_NAME_LEN_MAX + CRYPTO_MAX_ALG_NAME + 2 +
306 IMA_MAX_DIGEST_SIZE] = { 0 };
307 enum data_formats fmt = DATA_FMT_DIGEST;
308 u32 offset = 0;
309
310 if (digest_type < DIGEST_TYPE__LAST && hash_algo < HASH_ALGO__LAST) {
311 fmt = DATA_FMT_DIGEST_WITH_TYPE_AND_ALGO;
312 offset += 1 + sprintf(buffer, "%s:%s:",
313 digest_type_name[digest_type],
314 hash_algo_name[hash_algo]);
315 } else if (hash_algo < HASH_ALGO__LAST) {
316 fmt = DATA_FMT_DIGEST_WITH_ALGO;
317 offset += 1 + sprintf(buffer, "%s:",
318 hash_algo_name[hash_algo]);
319 }
320
321 if (digest) {
322 memcpy(buffer + offset, digest, digestsize);
323 } else {
324 /*
325 * If digest is NULL, the event being recorded is a violation.
326 * Make room for the digest by increasing the offset by the
327 * hash algorithm digest size. If the hash algorithm is not
328 * specified increase the offset by IMA_DIGEST_SIZE which
329 * fits SHA1 or MD5
330 */
331 if (hash_algo < HASH_ALGO__LAST)
332 offset += hash_digest_size[hash_algo];
333 else
334 offset += IMA_DIGEST_SIZE;
335 }
336
337 return ima_write_template_field_data(buffer, offset + digestsize,
338 fmt, field_data);
339}
340
341/*
342 * This function writes the digest of an event (with size limit).
343 */
344int ima_eventdigest_init(struct ima_event_data *event_data,
345 struct ima_field_data *field_data)
346{
347 struct ima_max_digest_data hash;
348 struct ima_digest_data *hash_hdr = container_of(&hash.hdr,
349 struct ima_digest_data, hdr);
350 u8 *cur_digest = NULL;
351 u32 cur_digestsize = 0;
352 struct inode *inode;
353 int result;
354
355 memset(&hash, 0, sizeof(hash));
356
357 if (event_data->violation) /* recording a violation. */
358 goto out;
359
360 if (ima_template_hash_algo_allowed(event_data->iint->ima_hash->algo)) {
361 cur_digest = event_data->iint->ima_hash->digest;
362 cur_digestsize = event_data->iint->ima_hash->length;
363 goto out;
364 }
365
366 if ((const char *)event_data->filename == boot_aggregate_name ||
367 (const char *)event_data->filename == boot_aggregate_late_name) {
368 if (ima_tpm_chip) {
369 hash.hdr.algo = HASH_ALGO_SHA1;
370 result = ima_calc_boot_aggregate(hash_hdr);
371
372 /* algo can change depending on available PCR banks */
373 if (!result && hash.hdr.algo != HASH_ALGO_SHA1)
374 result = -EINVAL;
375
376 if (result < 0)
377 memset(&hash, 0, sizeof(hash));
378 }
379
380 cur_digest = hash_hdr->digest;
381 cur_digestsize = hash_digest_size[HASH_ALGO_SHA1];
382 goto out;
383 }
384
385 if (!event_data->file) /* missing info to re-calculate the digest */
386 return -EINVAL;
387
388 inode = file_inode(event_data->file);
389 hash.hdr.algo = ima_template_hash_algo_allowed(ima_hash_algo) ?
390 ima_hash_algo : HASH_ALGO_SHA1;
391 result = ima_calc_file_hash(event_data->file, hash_hdr);
392 if (result) {
393 integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode,
394 event_data->filename, "collect_data",
395 "failed", result, 0);
396 return result;
397 }
398 cur_digest = hash_hdr->digest;
399 cur_digestsize = hash.hdr.length;
400out:
401 return ima_eventdigest_init_common(cur_digest, cur_digestsize,
402 DIGEST_TYPE__LAST, HASH_ALGO__LAST,
403 field_data);
404}
405
406/*
407 * This function writes the digest of an event (without size limit).
408 */
409int ima_eventdigest_ng_init(struct ima_event_data *event_data,
410 struct ima_field_data *field_data)
411{
412 u8 *cur_digest = NULL, hash_algo = ima_hash_algo;
413 u32 cur_digestsize = 0;
414
415 if (event_data->violation) /* recording a violation. */
416 goto out;
417
418 cur_digest = event_data->iint->ima_hash->digest;
419 cur_digestsize = event_data->iint->ima_hash->length;
420
421 hash_algo = event_data->iint->ima_hash->algo;
422out:
423 return ima_eventdigest_init_common(cur_digest, cur_digestsize,
424 DIGEST_TYPE__LAST, hash_algo,
425 field_data);
426}
427
428/*
429 * This function writes the digest of an event (without size limit),
430 * prefixed with both the digest type and hash algorithm.
431 */
432int ima_eventdigest_ngv2_init(struct ima_event_data *event_data,
433 struct ima_field_data *field_data)
434{
435 u8 *cur_digest = NULL, hash_algo = ima_hash_algo;
436 u32 cur_digestsize = 0;
437 u8 digest_type = DIGEST_TYPE_IMA;
438
439 if (event_data->violation) /* recording a violation. */
440 goto out;
441
442 cur_digest = event_data->iint->ima_hash->digest;
443 cur_digestsize = event_data->iint->ima_hash->length;
444
445 hash_algo = event_data->iint->ima_hash->algo;
446 if (event_data->iint->flags & IMA_VERITY_REQUIRED)
447 digest_type = DIGEST_TYPE_VERITY;
448out:
449 return ima_eventdigest_init_common(cur_digest, cur_digestsize,
450 digest_type, hash_algo,
451 field_data);
452}
453
454/*
455 * This function writes the digest of the file which is expected to match the
456 * digest contained in the file's appended signature.
457 */
458int ima_eventdigest_modsig_init(struct ima_event_data *event_data,
459 struct ima_field_data *field_data)
460{
461 enum hash_algo hash_algo;
462 const u8 *cur_digest;
463 u32 cur_digestsize;
464
465 if (!event_data->modsig)
466 return 0;
467
468 if (event_data->violation) {
469 /* Recording a violation. */
470 hash_algo = HASH_ALGO_SHA1;
471 cur_digest = NULL;
472 cur_digestsize = 0;
473 } else {
474 int rc;
475
476 rc = ima_get_modsig_digest(event_data->modsig, &hash_algo,
477 &cur_digest, &cur_digestsize);
478 if (rc)
479 return rc;
480 else if (hash_algo == HASH_ALGO__LAST || cur_digestsize == 0)
481 /* There was some error collecting the digest. */
482 return -EINVAL;
483 }
484
485 return ima_eventdigest_init_common(cur_digest, cur_digestsize,
486 DIGEST_TYPE__LAST, hash_algo,
487 field_data);
488}
489
490static int ima_eventname_init_common(struct ima_event_data *event_data,
491 struct ima_field_data *field_data,
492 bool size_limit)
493{
494 const char *cur_filename = NULL;
495 struct name_snapshot filename;
496 u32 cur_filename_len = 0;
497 bool snapshot = false;
498 int ret;
499
500 BUG_ON(event_data->filename == NULL && event_data->file == NULL);
501
502 if (event_data->filename) {
503 cur_filename = event_data->filename;
504 cur_filename_len = strlen(event_data->filename);
505
506 if (!size_limit || cur_filename_len <= IMA_EVENT_NAME_LEN_MAX)
507 goto out;
508 }
509
510 if (event_data->file) {
511 take_dentry_name_snapshot(&filename,
512 event_data->file->f_path.dentry);
513 snapshot = true;
514 cur_filename = filename.name.name;
515 cur_filename_len = strlen(cur_filename);
516 } else
517 /*
518 * Truncate filename if the latter is too long and
519 * the file descriptor is not available.
520 */
521 cur_filename_len = IMA_EVENT_NAME_LEN_MAX;
522out:
523 ret = ima_write_template_field_data(cur_filename, cur_filename_len,
524 DATA_FMT_STRING, field_data);
525
526 if (snapshot)
527 release_dentry_name_snapshot(&filename);
528
529 return ret;
530}
531
532/*
533 * This function writes the name of an event (with size limit).
534 */
535int ima_eventname_init(struct ima_event_data *event_data,
536 struct ima_field_data *field_data)
537{
538 return ima_eventname_init_common(event_data, field_data, true);
539}
540
541/*
542 * This function writes the name of an event (without size limit).
543 */
544int ima_eventname_ng_init(struct ima_event_data *event_data,
545 struct ima_field_data *field_data)
546{
547 return ima_eventname_init_common(event_data, field_data, false);
548}
549
550/*
551 * ima_eventsig_init - include the file signature as part of the template data
552 */
553int ima_eventsig_init(struct ima_event_data *event_data,
554 struct ima_field_data *field_data)
555{
556 struct evm_ima_xattr_data *xattr_value = event_data->xattr_value;
557
558 if (!xattr_value ||
559 (xattr_value->type != EVM_IMA_XATTR_DIGSIG &&
560 xattr_value->type != IMA_VERITY_DIGSIG))
561 return ima_eventevmsig_init(event_data, field_data);
562
563 return ima_write_template_field_data(xattr_value, event_data->xattr_len,
564 DATA_FMT_HEX, field_data);
565}
566
567/*
568 * ima_eventbuf_init - include the buffer(kexec-cmldine) as part of the
569 * template data.
570 */
571int ima_eventbuf_init(struct ima_event_data *event_data,
572 struct ima_field_data *field_data)
573{
574 if ((!event_data->buf) || (event_data->buf_len == 0))
575 return 0;
576
577 return ima_write_template_field_data(event_data->buf,
578 event_data->buf_len, DATA_FMT_HEX,
579 field_data);
580}
581
582/*
583 * ima_eventmodsig_init - include the appended file signature as part of the
584 * template data
585 */
586int ima_eventmodsig_init(struct ima_event_data *event_data,
587 struct ima_field_data *field_data)
588{
589 const void *data;
590 u32 data_len;
591 int rc;
592
593 if (!event_data->modsig)
594 return 0;
595
596 /*
597 * modsig is a runtime structure containing pointers. Get its raw data
598 * instead.
599 */
600 rc = ima_get_raw_modsig(event_data->modsig, &data, &data_len);
601 if (rc)
602 return rc;
603
604 return ima_write_template_field_data(data, data_len, DATA_FMT_HEX,
605 field_data);
606}
607
608/*
609 * ima_eventevmsig_init - include the EVM portable signature as part of the
610 * template data
611 */
612int ima_eventevmsig_init(struct ima_event_data *event_data,
613 struct ima_field_data *field_data)
614{
615 struct evm_ima_xattr_data *xattr_data = NULL;
616 int rc = 0;
617
618 if (!event_data->file)
619 return 0;
620
621 rc = vfs_getxattr_alloc(&nop_mnt_idmap, file_dentry(event_data->file),
622 XATTR_NAME_EVM, (char **)&xattr_data, 0,
623 GFP_NOFS);
624 if (rc <= 0 || xattr_data->type != EVM_XATTR_PORTABLE_DIGSIG) {
625 rc = 0;
626 goto out;
627 }
628
629 rc = ima_write_template_field_data((char *)xattr_data, rc, DATA_FMT_HEX,
630 field_data);
631
632out:
633 kfree(xattr_data);
634 return rc;
635}
636
637static int ima_eventinodedac_init_common(struct ima_event_data *event_data,
638 struct ima_field_data *field_data,
639 bool get_uid)
640{
641 unsigned int id;
642
643 if (!event_data->file)
644 return 0;
645
646 if (get_uid)
647 id = i_uid_read(file_inode(event_data->file));
648 else
649 id = i_gid_read(file_inode(event_data->file));
650
651 if (ima_canonical_fmt) {
652 if (sizeof(id) == sizeof(u16))
653 id = (__force u16)cpu_to_le16(id);
654 else
655 id = (__force u32)cpu_to_le32(id);
656 }
657
658 return ima_write_template_field_data((void *)&id, sizeof(id),
659 DATA_FMT_UINT, field_data);
660}
661
662/*
663 * ima_eventinodeuid_init - include the inode UID as part of the template
664 * data
665 */
666int ima_eventinodeuid_init(struct ima_event_data *event_data,
667 struct ima_field_data *field_data)
668{
669 return ima_eventinodedac_init_common(event_data, field_data, true);
670}
671
672/*
673 * ima_eventinodegid_init - include the inode GID as part of the template
674 * data
675 */
676int ima_eventinodegid_init(struct ima_event_data *event_data,
677 struct ima_field_data *field_data)
678{
679 return ima_eventinodedac_init_common(event_data, field_data, false);
680}
681
682/*
683 * ima_eventinodemode_init - include the inode mode as part of the template
684 * data
685 */
686int ima_eventinodemode_init(struct ima_event_data *event_data,
687 struct ima_field_data *field_data)
688{
689 struct inode *inode;
690 u16 mode;
691
692 if (!event_data->file)
693 return 0;
694
695 inode = file_inode(event_data->file);
696 mode = inode->i_mode;
697 if (ima_canonical_fmt)
698 mode = (__force u16)cpu_to_le16(mode);
699
700 return ima_write_template_field_data((char *)&mode, sizeof(mode),
701 DATA_FMT_UINT, field_data);
702}
703
704static int ima_eventinodexattrs_init_common(struct ima_event_data *event_data,
705 struct ima_field_data *field_data,
706 char type)
707{
708 u8 *buffer = NULL;
709 int rc;
710
711 if (!event_data->file)
712 return 0;
713
714 rc = evm_read_protected_xattrs(file_dentry(event_data->file), NULL, 0,
715 type, ima_canonical_fmt);
716 if (rc < 0)
717 return 0;
718
719 buffer = kmalloc(rc, GFP_KERNEL);
720 if (!buffer)
721 return 0;
722
723 rc = evm_read_protected_xattrs(file_dentry(event_data->file), buffer,
724 rc, type, ima_canonical_fmt);
725 if (rc < 0) {
726 rc = 0;
727 goto out;
728 }
729
730 rc = ima_write_template_field_data((char *)buffer, rc, DATA_FMT_HEX,
731 field_data);
732out:
733 kfree(buffer);
734 return rc;
735}
736
737/*
738 * ima_eventinodexattrnames_init - include a list of xattr names as part of the
739 * template data
740 */
741int ima_eventinodexattrnames_init(struct ima_event_data *event_data,
742 struct ima_field_data *field_data)
743{
744 return ima_eventinodexattrs_init_common(event_data, field_data, 'n');
745}
746
747/*
748 * ima_eventinodexattrlengths_init - include a list of xattr lengths as part of
749 * the template data
750 */
751int ima_eventinodexattrlengths_init(struct ima_event_data *event_data,
752 struct ima_field_data *field_data)
753{
754 return ima_eventinodexattrs_init_common(event_data, field_data, 'l');
755}
756
757/*
758 * ima_eventinodexattrvalues_init - include a list of xattr values as part of
759 * the template data
760 */
761int ima_eventinodexattrvalues_init(struct ima_event_data *event_data,
762 struct ima_field_data *field_data)
763{
764 return ima_eventinodexattrs_init_common(event_data, field_data, 'v');
765}