diff options
author | Yan, Zheng <zyan@redhat.com> | 2016-03-31 07:53:01 (GMT) |
---|---|---|
committer | Ilya Dryomov <idryomov@gmail.com> | 2016-05-25 23:15:31 (GMT) |
commit | d463a43d69f4af85887671d76182437775fd1631 (patch) | |
tree | 125e99a67c914de10c11a458bcaa789d543a655b /fs | |
parent | 235a09821c2bc71d9d07f12217ce2ac00db99eba (diff) | |
download | linux-d463a43d69f4af85887671d76182437775fd1631.tar.xz |
ceph: CEPH_FEATURE_MDSENC support
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/ceph/mdsmap.c | 43 | ||||
-rw-r--r-- | fs/ceph/super.c | 5 |
2 files changed, 36 insertions, 12 deletions
diff --git a/fs/ceph/mdsmap.c b/fs/ceph/mdsmap.c index 261531e..8c3591a 100644 --- a/fs/ceph/mdsmap.c +++ b/fs/ceph/mdsmap.c @@ -54,16 +54,21 @@ struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end) const void *start = *p; int i, j, n; int err = -EINVAL; - u16 version; + u8 mdsmap_v, mdsmap_cv; m = kzalloc(sizeof(*m), GFP_NOFS); if (m == NULL) return ERR_PTR(-ENOMEM); - ceph_decode_16_safe(p, end, version, bad); - if (version > 3) { - pr_warn("got mdsmap version %d > 3, failing", version); - goto bad; + ceph_decode_need(p, end, 1 + 1, bad); + mdsmap_v = ceph_decode_8(p); + mdsmap_cv = ceph_decode_8(p); + if (mdsmap_v >= 4) { + u32 mdsmap_len; + ceph_decode_32_safe(p, end, mdsmap_len, bad); + if (end < *p + mdsmap_len) + goto bad; + end = *p + mdsmap_len; } ceph_decode_need(p, end, 8*sizeof(u32) + sizeof(u64), bad); @@ -87,16 +92,29 @@ struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end) u32 namelen; s32 mds, inc, state; u64 state_seq; - u8 infoversion; + u8 info_v; + void *info_end = NULL; struct ceph_entity_addr addr; u32 num_export_targets; void *pexport_targets = NULL; struct ceph_timespec laggy_since; struct ceph_mds_info *info; - ceph_decode_need(p, end, sizeof(u64)*2 + 1 + sizeof(u32), bad); + ceph_decode_need(p, end, sizeof(u64) + 1, bad); global_id = ceph_decode_64(p); - infoversion = ceph_decode_8(p); + info_v= ceph_decode_8(p); + if (info_v >= 4) { + u32 info_len; + u8 info_cv; + ceph_decode_need(p, end, 1 + sizeof(u32), bad); + info_cv = ceph_decode_8(p); + info_len = ceph_decode_32(p); + info_end = *p + info_len; + if (info_end > end) + goto bad; + } + + ceph_decode_need(p, end, sizeof(u64) + sizeof(u32), bad); *p += sizeof(u64); namelen = ceph_decode_32(p); /* skip mds name */ *p += namelen; @@ -115,7 +133,7 @@ struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end) *p += sizeof(u32); ceph_decode_32_safe(p, end, namelen, bad); *p += namelen; - if (infoversion >= 2) { + if (info_v >= 2) { ceph_decode_32_safe(p, end, num_export_targets, bad); pexport_targets = *p; *p += num_export_targets * sizeof(u32); @@ -123,6 +141,12 @@ struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end) num_export_targets = 0; } + if (info_end && *p != info_end) { + if (*p > info_end) + goto bad; + *p = info_end; + } + dout("mdsmap_decode %d/%d %lld mds%d.%d %s %s\n", i+1, n, global_id, mds, inc, ceph_pr_addr(&addr.in_addr), @@ -163,6 +187,7 @@ struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end) m->m_cas_pg_pool = ceph_decode_64(p); /* ok, we don't care about the rest. */ + *p = end; dout("mdsmap_decode success epoch %u\n", m->m_epoch); return m; diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 452770d..d714ab2 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -519,9 +519,8 @@ static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt, { struct ceph_fs_client *fsc; const u64 supported_features = - CEPH_FEATURE_FLOCK | - CEPH_FEATURE_DIRLAYOUTHASH | - CEPH_FEATURE_MDS_INLINE_DATA; + CEPH_FEATURE_FLOCK | CEPH_FEATURE_DIRLAYOUTHASH | + CEPH_FEATURE_MDSENC | CEPH_FEATURE_MDS_INLINE_DATA; const u64 required_features = 0; int page_count; size_t size; |