diff options
| author | Harshavardhana <fharshav@redhat.com> | 2011-11-21 16:28:47 -0800 |
|---|---|---|
| committer | Vijay Bellur <vijay@gluster.com> | 2011-12-06 02:02:02 -0800 |
| commit | 254fbfd92d4088c97ddde79a37b4e08e80c8eff3 (patch) | |
| tree | 229df761122889997a14a4cc310095a438e2f3ff /xlators/cluster/dht/src/dht-layout.c | |
| parent | 2b64c93c9f7f69fab506bdfca163a2805a2ea46c (diff) | |
cluster/distribute: Assert checks at known locations
and new function dict_get_ptr_and_len().
Change-Id: I653a1cc8123baa36d750250d02721aa98b196f38
BUG: 3158
Signed-off-by: Harshavardhana <fharshav@redhat.com>
Reviewed-on: http://review.gluster.com/744
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vijay@gluster.com>
Diffstat (limited to 'xlators/cluster/dht/src/dht-layout.c')
| -rw-r--r-- | xlators/cluster/dht/src/dht-layout.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/xlators/cluster/dht/src/dht-layout.c b/xlators/cluster/dht/src/dht-layout.c index 33dcc4067..3c8f63f5b 100644 --- a/xlators/cluster/dht/src/dht-layout.c +++ b/xlators/cluster/dht/src/dht-layout.c @@ -289,7 +289,7 @@ out: int dht_disk_layout_merge (xlator_t *this, dht_layout_t *layout, - int pos, void *disk_layout_raw) + int pos, void *disk_layout_raw, int disk_layout_len) { int cnt = 0; int type = 0; @@ -297,9 +297,15 @@ dht_disk_layout_merge (xlator_t *this, dht_layout_t *layout, int stop_off = 0; int disk_layout[4]; - /* TODO: assert disk_layout_ptr is of required length */ + if (!disk_layout_raw) { + gf_log (this->name, GF_LOG_CRITICAL, + "error no layout on disk for merge"); + return -1; + } - memcpy (disk_layout, disk_layout_raw, sizeof (disk_layout)); + GF_ASSERT (disk_layout_len == sizeof (disk_layout)); + + memcpy (disk_layout, disk_layout_raw, disk_layout_len); cnt = ntoh32 (disk_layout[0]); if (cnt != 1) { @@ -308,8 +314,17 @@ dht_disk_layout_merge (xlator_t *this, dht_layout_t *layout, return -1; } - /* TODO: assert type is compatible */ - type = ntoh32 (disk_layout[1]); + switch (disk_layout[1]) { + case DHT_HASH_TYPE_DM: + type = ntoh32 (disk_layout[1]); + break; + default: + gf_log (this->name, GF_LOG_CRITICAL, + "Catastrophic error layout with unknown type found %d", + disk_layout[1]); + return -1; + } + start_off = ntoh32 (disk_layout[2]); stop_off = ntoh32 (disk_layout[3]); @@ -333,7 +348,7 @@ dht_layout_merge (xlator_t *this, dht_layout_t *layout, xlator_t *subvol, int ret = -1; int err = -1; void *disk_layout_raw = NULL; - + int disk_layout_len = 0; if (op_ret != 0) { err = op_errno; @@ -354,8 +369,8 @@ dht_layout_merge (xlator_t *this, dht_layout_t *layout, xlator_t *subvol, if (xattr) { /* during lookup and not mkdir */ - ret = dict_get_ptr (xattr, "trusted.glusterfs.dht", - &disk_layout_raw); + ret = dict_get_ptr_and_len (xattr, "trusted.glusterfs.dht", + &disk_layout_raw, &disk_layout_len); } if (ret != 0) { @@ -367,7 +382,8 @@ dht_layout_merge (xlator_t *this, dht_layout_t *layout, xlator_t *subvol, goto out; } - ret = dht_disk_layout_merge (this, layout, i, disk_layout_raw); + ret = dht_disk_layout_merge (this, layout, i, disk_layout_raw, + disk_layout_len); if (ret != 0) { gf_log (this->name, GF_LOG_DEBUG, "layout merge from subvolume %s failed", |