dm: update target status functions to support IMA measurement
For device mapper targets to take advantage of IMA's measurement
capabilities, the status functions for the individual targets need to be
updated to handle the status_type_t case for value STATUSTYPE_IMA.
Update status functions for the following target types, to log their
respective attributes to be measured using IMA.
01. cache
02. crypt
03. integrity
04. linear
05. mirror
06. multipath
07. raid
08. snapshot
09. striped
10. verity
For rest of the targets, handle the STATUSTYPE_IMA case by setting the
measurement buffer to NULL.
For IMA to measure the data on a given system, the IMA policy on the
system needs to be updated to have the following line, and the system
needs to be restarted for the measurements to take effect.
/etc/ima/ima-policy
measure func=CRITICAL_DATA label=device-mapper template=ima-buf
The measurements will be reflected in the IMA logs, which are located at:
/sys/kernel/security/integrity/ima/ascii_runtime_measurements
/sys/kernel/security/integrity/ima/binary_runtime_measurements
These IMA logs can later be consumed by various attestation clients
running on the system, and send them to external services for attesting
the system.
The DM target data measured by IMA subsystem can alternatively
be queried from userspace by setting DM_IMA_MEASUREMENT_FLAG with
DM_TABLE_STATUS_CMD.
Signed-off-by: Tushar Sugandhi <tusharsu@linux.microsoft.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 8e4ced5..bdd5004 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -3122,6 +3122,30 @@ static void cache_status(struct dm_target *ti, status_type_t type,
DMEMIT(" %s", cache->ctr_args[i]);
if (cache->nr_ctr_args)
DMEMIT(" %s", cache->ctr_args[cache->nr_ctr_args - 1]);
+ break;
+
+ case STATUSTYPE_IMA:
+ DMEMIT_TARGET_NAME_VERSION(ti->type);
+ if (get_cache_mode(cache) == CM_FAIL)
+ DMEMIT(",metadata_mode=fail");
+ else if (get_cache_mode(cache) == CM_READ_ONLY)
+ DMEMIT(",metadata_mode=ro");
+ else
+ DMEMIT(",metadata_mode=rw");
+
+ format_dev_t(buf, cache->metadata_dev->bdev->bd_dev);
+ DMEMIT(",cache_metadata_device=%s", buf);
+ format_dev_t(buf, cache->cache_dev->bdev->bd_dev);
+ DMEMIT(",cache_device=%s", buf);
+ format_dev_t(buf, cache->origin_dev->bdev->bd_dev);
+ DMEMIT(",cache_origin_device=%s", buf);
+ DMEMIT(",writethrough=%c", writethrough_mode(cache) ? 'y' : 'n');
+ DMEMIT(",writeback=%c", writeback_mode(cache) ? 'y' : 'n');
+ DMEMIT(",passthrough=%c", passthrough_mode(cache) ? 'y' : 'n');
+ DMEMIT(",metadata2=%c", cache->features.metadata_version == 2 ? 'y' : 'n');
+ DMEMIT(",no_discard_passdown=%c", cache->features.discard_passdown ? 'n' : 'y');
+ DMEMIT(";");
+ break;
}
return;
diff --git a/drivers/md/dm-clone-target.c b/drivers/md/dm-clone-target.c
index a90bdf9..84dbe08 100644
--- a/drivers/md/dm-clone-target.c
+++ b/drivers/md/dm-clone-target.c
@@ -1499,6 +1499,11 @@ static void clone_status(struct dm_target *ti, status_type_t type,
for (i = 0; i < clone->nr_ctr_args; i++)
DMEMIT(" %s", clone->ctr_args[i]);
+ break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
return;
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 50f4cbd..80fdc42 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3485,7 +3485,34 @@ static void crypt_status(struct dm_target *ti, status_type_t type,
if (test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags))
DMEMIT(" iv_large_sectors");
}
+ break;
+ case STATUSTYPE_IMA:
+ DMEMIT_TARGET_NAME_VERSION(ti->type);
+ DMEMIT(",allow_discards=%c", ti->num_discard_bios ? 'y' : 'n');
+ DMEMIT(",same_cpu_crypt=%c", test_bit(DM_CRYPT_SAME_CPU, &cc->flags) ? 'y' : 'n');
+ DMEMIT(",submit_from_crypt_cpus=%c", test_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags) ?
+ 'y' : 'n');
+ DMEMIT(",no_read_workqueue=%c", test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags) ?
+ 'y' : 'n');
+ DMEMIT(",no_write_workqueue=%c", test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags) ?
+ 'y' : 'n');
+ DMEMIT(",iv_large_sectors=%c", test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags) ?
+ 'y' : 'n');
+
+ if (cc->on_disk_tag_size)
+ DMEMIT(",integrity_tag_size=%u,cipher_auth=%s",
+ cc->on_disk_tag_size, cc->cipher_auth);
+ if (cc->sector_size != (1 << SECTOR_SHIFT))
+ DMEMIT(",sector_size=%d", cc->sector_size);
+ if (cc->cipher_string)
+ DMEMIT(",cipher_string=%s", cc->cipher_string);
+
+ DMEMIT(",key_size=%u", cc->key_size);
+ DMEMIT(",key_parts=%u", cc->key_parts);
+ DMEMIT(",key_extra_size=%u", cc->key_extra_size);
+ DMEMIT(",key_mac_size=%u", cc->key_mac_size);
+ DMEMIT(";");
break;
}
}
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index 2628a83..59e51d2 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -326,6 +326,10 @@ static void delay_status(struct dm_target *ti, status_type_t type,
DMEMIT_DELAY_CLASS(&dc->flush);
}
break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-dust.c b/drivers/md/dm-dust.c
index cbe1058..3163e2b 100644
--- a/drivers/md/dm-dust.c
+++ b/drivers/md/dm-dust.c
@@ -527,6 +527,10 @@ static void dust_status(struct dm_target *ti, status_type_t type,
DMEMIT("%s %llu %u", dd->dev->name,
(unsigned long long)dd->start, dd->blksz);
break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-ebs-target.c b/drivers/md/dm-ebs-target.c
index 71475a2..ec84266 100644
--- a/drivers/md/dm-ebs-target.c
+++ b/drivers/md/dm-ebs-target.c
@@ -401,6 +401,9 @@ static void ebs_status(struct dm_target *ti, status_type_t type,
snprintf(result, maxlen, ec->u_bs_set ? "%s %llu %u %u" : "%s %llu %u",
ec->dev->name, (unsigned long long) ec->start, ec->e_bs, ec->u_bs);
break;
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-era-target.c b/drivers/md/dm-era-target.c
index 3b74839..2a78f68 100644
--- a/drivers/md/dm-era-target.c
+++ b/drivers/md/dm-era-target.c
@@ -1644,6 +1644,10 @@ static void era_status(struct dm_target *ti, status_type_t type,
format_dev_t(buf, era->origin_dev->bdev->bd_dev);
DMEMIT("%s %u", buf, era->sectors_per_block);
break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
return;
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 5877220..4b94ffe 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -440,6 +440,10 @@ static void flakey_status(struct dm_target *ti, status_type_t type,
fc->corrupt_bio_value, fc->corrupt_bio_flags);
break;
+
+ case STATUSTYPE_IMA:
+ result[0] = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 20f2510..40f8116 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -3306,6 +3306,31 @@ static void dm_integrity_status(struct dm_target *ti, status_type_t type,
EMIT_ALG(journal_mac_alg, "journal_mac");
break;
}
+ case STATUSTYPE_IMA:
+ DMEMIT_TARGET_NAME_VERSION(ti->type);
+ DMEMIT(",dev_name=%s,start=%llu,tag_size=%u,mode=%c",
+ ic->dev->name, ic->start, ic->tag_size, ic->mode);
+
+ if (ic->meta_dev)
+ DMEMIT(",meta_device=%s", ic->meta_dev->name);
+ if (ic->sectors_per_block != 1)
+ DMEMIT(",block_size=%u", ic->sectors_per_block << SECTOR_SHIFT);
+
+ DMEMIT(",recalculate=%c", (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)) ?
+ 'y' : 'n');
+ DMEMIT(",allow_discards=%c", ic->discard ? 'y' : 'n');
+ DMEMIT(",fix_padding=%c",
+ ((ic->sb->flags & cpu_to_le32(SB_FLAG_FIXED_PADDING)) != 0) ? 'y' : 'n');
+ DMEMIT(",fix_hmac=%c",
+ ((ic->sb->flags & cpu_to_le32(SB_FLAG_FIXED_HMAC)) != 0) ? 'y' : 'n');
+ DMEMIT(",legacy_recalculate=%c", ic->legacy_recalculate ? 'y' : 'n');
+
+ DMEMIT(",journal_sectors=%u", ic->initial_sectors - SB_SECTORS);
+ DMEMIT(",interleave_sectors=%u", 1U << ic->sb->log2_interleave_sectors);
+ DMEMIT(",buffer_sectors=%u", 1U << ic->log2_buffer_sectors);
+ DMEMIT(",mode=%c", ic->mode);
+ DMEMIT(";");
+ break;
}
}
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index c91f1e2..679b4c0 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -106,6 +106,7 @@ static void linear_status(struct dm_target *ti, status_type_t type,
unsigned status_flags, char *result, unsigned maxlen)
{
struct linear_c *lc = (struct linear_c *) ti->private;
+ size_t sz = 0;
switch (type) {
case STATUSTYPE_INFO:
@@ -113,8 +114,13 @@ static void linear_status(struct dm_target *ti, status_type_t type,
break;
case STATUSTYPE_TABLE:
- snprintf(result, maxlen, "%s %llu", lc->dev->name,
- (unsigned long long)lc->start);
+ DMEMIT("%s %llu", lc->dev->name, (unsigned long long)lc->start);
+ break;
+
+ case STATUSTYPE_IMA:
+ DMEMIT_TARGET_NAME_VERSION(ti->type);
+ DMEMIT(",device_name=%s,start=%llu;", lc->dev->name,
+ (unsigned long long)lc->start);
break;
}
}
diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c
index 52090be..9ab93eb 100644
--- a/drivers/md/dm-log-userspace-base.c
+++ b/drivers/md/dm-log-userspace-base.c
@@ -820,6 +820,9 @@ static int userspace_status(struct dm_dirty_log *log, status_type_t status_type,
DMEMIT("integrated_flush ");
DMEMIT("%s ", table_args);
break;
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
return (r) ? 0 : (int)sz;
}
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
index 5788265..d93a4db 100644
--- a/drivers/md/dm-log-writes.c
+++ b/drivers/md/dm-log-writes.c
@@ -834,6 +834,10 @@ static void log_writes_status(struct dm_target *ti, status_type_t type,
case STATUSTYPE_TABLE:
DMEMIT("%s %s", lc->dev->name, lc->logdev->name);
break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index 33e71ea..1ecf75e 100644
--- a/drivers/md/dm-log.c
+++ b/drivers/md/dm-log.c
@@ -793,6 +793,11 @@ static int core_status(struct dm_dirty_log *log, status_type_t status,
DMEMIT("%s %u %u ", log->type->name,
lc->sync == DEFAULTSYNC ? 1 : 2, lc->region_size);
DMEMIT_SYNC;
+ break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
return sz;
@@ -817,6 +822,11 @@ static int disk_status(struct dm_dirty_log *log, status_type_t status,
lc->sync == DEFAULTSYNC ? 2 : 3, lc->log_dev->name,
lc->region_size);
DMEMIT_SYNC;
+ break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
return sz;
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index bced42f..c3c514a 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1904,6 +1904,34 @@ static void multipath_status(struct dm_target *ti, status_type_t type,
}
}
break;
+
+ case STATUSTYPE_IMA:
+ DMEMIT_TARGET_NAME_VERSION(ti->type);
+ list_for_each_entry(pg, &m->priority_groups, list) {
+ if (pg->bypassed)
+ state = 'D'; /* Disabled */
+ else if (pg == m->current_pg)
+ state = 'A'; /* Currently Active */
+ else
+ state = 'E'; /* Enabled */
+ DMEMIT(",pg_state=%c", state);
+ DMEMIT(",nr_pgpaths=%u", pg->nr_pgpaths);
+ DMEMIT(",path_selector_name=%s", pg->ps.type->name);
+
+ list_for_each_entry(p, &pg->pgpaths, list) {
+ DMEMIT(",path_name=%s,is_active=%c,fail_count=%u",
+ p->path.dev->name, p->is_active ? 'A' : 'F',
+ p->fail_count);
+ if (pg->ps.type->status) {
+ DMEMIT(",path_selector_status=");
+ sz += pg->ps.type->status(&pg->ps, &p->path,
+ type, result + sz,
+ maxlen - sz);
+ }
+ }
+ }
+ DMEMIT(";");
+ break;
}
spin_unlock_irqrestore(&m->lock, flags);
diff --git a/drivers/md/dm-ps-historical-service-time.c b/drivers/md/dm-ps-historical-service-time.c
index 186f91e..1856a1b 100644
--- a/drivers/md/dm-ps-historical-service-time.c
+++ b/drivers/md/dm-ps-historical-service-time.c
@@ -255,6 +255,9 @@ static int hst_status(struct path_selector *ps, struct dm_path *path,
case STATUSTYPE_TABLE:
DMEMIT("0 ");
break;
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-ps-io-affinity.c b/drivers/md/dm-ps-io-affinity.c
index cb8e83b..f74501e 100644
--- a/drivers/md/dm-ps-io-affinity.c
+++ b/drivers/md/dm-ps-io-affinity.c
@@ -170,6 +170,9 @@ static int ioa_status(struct path_selector *ps, struct dm_path *path,
pi = path->pscontext;
DMEMIT("%*pb ", cpumask_pr_args(pi->cpumask));
break;
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
return sz;
diff --git a/drivers/md/dm-ps-queue-length.c b/drivers/md/dm-ps-queue-length.c
index 5fd018d..cef7065 100644
--- a/drivers/md/dm-ps-queue-length.c
+++ b/drivers/md/dm-ps-queue-length.c
@@ -102,6 +102,9 @@ static int ql_status(struct path_selector *ps, struct dm_path *path,
case STATUSTYPE_TABLE:
DMEMIT("%u ", pi->repeat_count);
break;
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-ps-round-robin.c b/drivers/md/dm-ps-round-robin.c
index bdbb7e6..27f44c5 100644
--- a/drivers/md/dm-ps-round-robin.c
+++ b/drivers/md/dm-ps-round-robin.c
@@ -100,6 +100,10 @@ static int rr_status(struct path_selector *ps, struct dm_path *path,
pi = path->pscontext;
DMEMIT("%u ", pi->repeat_count);
break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-ps-service-time.c b/drivers/md/dm-ps-service-time.c
index 9cfda66..3ec9c33 100644
--- a/drivers/md/dm-ps-service-time.c
+++ b/drivers/md/dm-ps-service-time.c
@@ -99,6 +99,9 @@ static int st_status(struct path_selector *ps, struct dm_path *path,
DMEMIT("%u %u ", pi->repeat_count,
pi->relative_throughput);
break;
+ case STATUSTYPE_IMA:
+ result[0] = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index bf4a467..d9ef521 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3671,6 +3671,45 @@ static void raid_status(struct dm_target *ti, status_type_t type,
for (i = 0; i < rs->raid_disks; i++)
DMEMIT(" %s %s", __get_dev_name(rs->dev[i].meta_dev),
__get_dev_name(rs->dev[i].data_dev));
+ break;
+
+ case STATUSTYPE_IMA:
+ rt = get_raid_type_by_ll(mddev->new_level, mddev->new_layout);
+ if (!rt)
+ return;
+
+ DMEMIT_TARGET_NAME_VERSION(ti->type);
+ DMEMIT(",raid_type=%s,raid_disks=%d", rt->name, mddev->raid_disks);
+
+ /* Access most recent mddev properties for status output */
+ smp_rmb();
+ recovery = rs->md.recovery;
+ state = decipher_sync_action(mddev, recovery);
+ DMEMIT(",raid_state=%s", sync_str(state));
+
+ for (i = 0; i < rs->raid_disks; i++) {
+ DMEMIT(",raid_device_%d_status=", i);
+ DMEMIT(__raid_dev_status(rs, &rs->dev[i].rdev));
+ }
+
+ if (rt_is_raid456(rt)) {
+ DMEMIT(",journal_dev_mode=");
+ switch (rs->journal_dev.mode) {
+ case R5C_JOURNAL_MODE_WRITE_THROUGH:
+ DMEMIT("%s",
+ _raid456_journal_mode[R5C_JOURNAL_MODE_WRITE_THROUGH].param);
+ break;
+ case R5C_JOURNAL_MODE_WRITE_BACK:
+ DMEMIT("%s",
+ _raid456_journal_mode[R5C_JOURNAL_MODE_WRITE_BACK].param);
+ break;
+ default:
+ DMEMIT("invalid");
+ break;
+ }
+ }
+ DMEMIT(";");
+ break;
}
}
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index ebb4810..8811d48 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1435,6 +1435,23 @@ static void mirror_status(struct dm_target *ti, status_type_t type,
}
break;
+
+ case STATUSTYPE_IMA:
+ DMEMIT_TARGET_NAME_VERSION(ti->type);
+ DMEMIT(",nr_mirrors=%d", ms->nr_mirrors);
+ for (m = 0; m < ms->nr_mirrors; m++) {
+ DMEMIT(",mirror_device_%d=%s", m, ms->mirror[m].dev->name);
+ DMEMIT(",mirror_device_%d_status=%c",
+ m, device_status_char(&(ms->mirror[m])));
+ }
+
+ DMEMIT(",handle_errors=%c", errors_handled(ms) ? 'y' : 'n');
+ DMEMIT(",keep_log=%c", keep_log(ms) ? 'y' : 'n');
+
+ DMEMIT(",log_type_status=");
+ sz += log->type->status(log, type, result+sz, maxlen-sz);
+ DMEMIT(";");
+ break;
}
}
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index 9ab4bf6..3bb5cff 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -908,6 +908,10 @@ static unsigned persistent_status(struct dm_exception_store *store,
case STATUSTYPE_TABLE:
DMEMIT(" %s %llu", store->userspace_supports_overflow ? "PO" : "P",
(unsigned long long)store->chunk_size);
+ break;
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
return sz;
diff --git a/drivers/md/dm-snap-transient.c b/drivers/md/dm-snap-transient.c
index 4d50a12..0e0ae4c 100644
--- a/drivers/md/dm-snap-transient.c
+++ b/drivers/md/dm-snap-transient.c
@@ -95,6 +95,10 @@ static unsigned transient_status(struct dm_exception_store *store,
break;
case STATUSTYPE_TABLE:
DMEMIT(" N %llu", (unsigned long long)store->chunk_size);
+ break;
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
return sz;
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 751ec5e..dcf34c6 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -2390,6 +2390,16 @@ static void snapshot_status(struct dm_target *ti, status_type_t type,
DMEMIT(" discard_passdown_origin");
}
break;
+
+ case STATUSTYPE_IMA:
+ DMEMIT_TARGET_NAME_VERSION(ti->type);
+ DMEMIT(",snap_origin_name=%s", snap->origin->name);
+ DMEMIT(",snap_cow_name=%s", snap->cow->name);
+ DMEMIT(",snap_valid=%c", snap->valid ? 'y' : 'n');
+ DMEMIT(",snap_merge_failed=%c", snap->merge_failed ? 'y' : 'n');
+ DMEMIT(",snapshot_overflowed=%c", snap->snapshot_overflowed ? 'y' : 'n');
+ DMEMIT(";");
+ break;
}
}
@@ -2734,6 +2744,9 @@ static void origin_status(struct dm_target *ti, status_type_t type,
case STATUSTYPE_TABLE:
snprintf(result, maxlen, "%s", o->dev->name);
break;
+ case STATUSTYPE_IMA:
+ result[0] = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index df359d3..6660b6b 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -428,6 +428,21 @@ static void stripe_status(struct dm_target *ti, status_type_t type,
DMEMIT(" %s %llu", sc->stripe[i].dev->name,
(unsigned long long)sc->stripe[i].physical_start);
break;
+
+ case STATUSTYPE_IMA:
+ DMEMIT_TARGET_NAME_VERSION(ti->type);
+ DMEMIT(",stripes=%d,chunk_size=%llu", sc->stripes,
+ (unsigned long long)sc->chunk_size);
+
+ for (i = 0; i < sc->stripes; i++) {
+ DMEMIT(",stripe_%d_device_name=%s", i, sc->stripe[i].dev->name);
+ DMEMIT(",stripe_%d_physical_start=%llu", i,
+ (unsigned long long)sc->stripe[i].physical_start);
+ DMEMIT(",stripe_%d_status=%c", i,
+ atomic_read(&(sc->stripe[i].error_count)) ? 'D' : 'A');
+ }
+ DMEMIT(";");
+ break;
}
}
diff --git a/drivers/md/dm-switch.c b/drivers/md/dm-switch.c
index 262e2b0..028a92f 100644
--- a/drivers/md/dm-switch.c
+++ b/drivers/md/dm-switch.c
@@ -504,6 +504,10 @@ static void switch_status(struct dm_target *ti, status_type_t type,
DMEMIT(" %s %llu", sctx->path_list[path_nr].dmdev->name,
(unsigned long long)sctx->path_list[path_nr].start);
break;
+
+ case STATUSTYPE_IMA:
+ result[0] = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 985baee..4c67b77 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -4012,6 +4012,10 @@ static void pool_status(struct dm_target *ti, status_type_t type,
(unsigned long long)pt->low_water_blocks);
emit_flags(&pt->requested_pf, result, sz, maxlen);
break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
return;
@@ -4423,6 +4427,10 @@ static void thin_status(struct dm_target *ti, status_type_t type,
if (tc->origin_dev)
DMEMIT(" %s", format_dev_t(buf, tc->origin_dev->bdev->bd_dev));
break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-unstripe.c b/drivers/md/dm-unstripe.c
index 7357c1b..fdc8921 100644
--- a/drivers/md/dm-unstripe.c
+++ b/drivers/md/dm-unstripe.c
@@ -156,6 +156,10 @@ static void unstripe_status(struct dm_target *ti, status_type_t type,
uc->stripes, (unsigned long long)uc->chunk_size, uc->unstripe,
uc->dev->name, (unsigned long long)uc->physical_start);
break;
+
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index d3e76ae..bfefa10 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -772,6 +772,47 @@ static void verity_status(struct dm_target *ti, status_type_t type,
DMEMIT(" " DM_VERITY_ROOT_HASH_VERIFICATION_OPT_SIG_KEY
" %s", v->signature_key_desc);
break;
+
+ case STATUSTYPE_IMA:
+ DMEMIT_TARGET_NAME_VERSION(ti->type);
+ DMEMIT(",hash_failed=%c", v->hash_failed ? 'C' : 'V');
+ DMEMIT(",verity_version=%u", v->version);
+ DMEMIT(",data_device_name=%s", v->data_dev->name);
+ DMEMIT(",hash_device_name=%s", v->hash_dev->name);
+ DMEMIT(",verity_algorithm=%s", v->alg_name);
+
+ DMEMIT(",root_digest=");
+ for (x = 0; x < v->digest_size; x++)
+ DMEMIT("%02x", v->root_digest[x]);
+
+ DMEMIT(",salt=");
+ if (!v->salt_size)
+ DMEMIT("-");
+ else
+ for (x = 0; x < v->salt_size; x++)
+ DMEMIT("%02x", v->salt[x]);
+
+ DMEMIT(",ignore_zero_blocks=%c", v->zero_digest ? 'y' : 'n');
+ DMEMIT(",check_at_most_once=%c", v->validated_blocks ? 'y' : 'n');
+
+ if (v->mode != DM_VERITY_MODE_EIO) {
+ DMEMIT(",verity_mode=");
+ switch (v->mode) {
+ case DM_VERITY_MODE_LOGGING:
+ DMEMIT(DM_VERITY_OPT_LOGGING);
+ break;
+ case DM_VERITY_MODE_RESTART:
+ DMEMIT(DM_VERITY_OPT_RESTART);
+ break;
+ case DM_VERITY_MODE_PANIC:
+ DMEMIT(DM_VERITY_OPT_PANIC);
+ break;
+ default:
+ DMEMIT("invalid");
+ }
+ }
+ DMEMIT(";");
+ break;
}
}
diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index e1d7234..1832044 100644
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -2723,6 +2723,9 @@ static void writecache_status(struct dm_target *ti, status_type_t type,
if (wc->pause_set)
DMEMIT(" pause_writeback %u", wc->pause_value);
break;
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
}
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
index 7e88df6..ae1bc48 100644
--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -1119,6 +1119,9 @@ static void dmz_status(struct dm_target *ti, status_type_t type,
DMEMIT(" %s", buf);
}
break;
+ case STATUSTYPE_IMA:
+ *result = '\0';
+ break;
}
return;
}