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authorSantosh Kumar Pradhan <spradhan@redhat.com>2013-09-20 16:58:47 +0530
committerVijay Bellur <vbellur@redhat.com>2013-11-04 17:33:37 -0800
commit0b2487d3bc8bc526d9b08698ea1434e94a6420d5 (patch)
tree8c49c921954060d88ad9109d71736823b26b3723 /xlators/nfs
parent3108d4529d57690f58027da61ac5e56a0987ed57 (diff)
gNFS: NFS segfaults with nfstest_posix tool
Problem: nfs3_stat_to_fattr3() missed a NULL check. FIX: (1) Added a NULL check. (2) In all fop cbk path, if the op_ret is -1 and op_errno is 0, then handle it as a special case. Set the NFS3 status as NFS3ERR_SERVERFAULT instead of NFS3_OK. (3) The other component of FIX would be in DHT module and is on the way. Change-Id: I6f03c9a02d794f8b807574f2755094dab1b90c92 BUG: 1010241 Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com> Reviewed-on: http://review.gluster.org/6026 Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
Diffstat (limited to 'xlators/nfs')
-rw-r--r--xlators/nfs/server/src/nfs3-helpers.c4
-rw-r--r--xlators/nfs/server/src/nfs3.c75
2 files changed, 48 insertions, 31 deletions
diff --git a/xlators/nfs/server/src/nfs3-helpers.c b/xlators/nfs/server/src/nfs3-helpers.c
index 824b922..e299bad 100644
--- a/xlators/nfs/server/src/nfs3-helpers.c
+++ b/xlators/nfs/server/src/nfs3-helpers.c
@@ -275,6 +275,9 @@ nfs3_stat_to_fattr3 (struct iatt *buf)
{
fattr3 fa = {0, };
+ if (buf == NULL)
+ goto out;
+
if (IA_ISDIR (buf->ia_type))
fa.type = NF3DIR;
else if (IA_ISREG (buf->ia_type))
@@ -344,6 +347,7 @@ nfs3_stat_to_fattr3 (struct iatt *buf)
fa.mtime.seconds = buf->ia_mtime;
fa.mtime.nseconds = buf->ia_mtime_nsec;
+out:
return fa;
}
diff --git a/xlators/nfs/server/src/nfs3.c b/xlators/nfs/server/src/nfs3.c
index afb5ba3..4faec35 100644
--- a/xlators/nfs/server/src/nfs3.c
+++ b/xlators/nfs/server/src/nfs3.c
@@ -64,6 +64,19 @@
} while (0); \
+/*
+ * Special case: If op_ret is -1, it's very unusual op_errno being
+ * 0 which means something came wrong from upper layer(s). If it
+ * happens by any means, then set NFS3 status to NFS3ERR_SERVERFAULT.
+ */
+static inline nfsstat3 nfs3_cbk_errno_status (int32_t op_ret, int32_t op_errno)
+{
+ if ((op_ret == -1) && (op_errno == 0)){
+ return NFS3ERR_SERVERFAULT;
+ }
+ return nfs3_errno_to_nfsstat3 (op_errno);
+}
+
struct nfs3_export *
__nfs3_get_export_by_index (struct nfs3_state *nfs3, uuid_t exportid)
{
@@ -704,7 +717,7 @@ nfs3svc_getattr_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- status = nfs3_errno_to_nfsstat3 (op_errno);
+ status = nfs3_cbk_errno_status (op_ret, op_errno);
}
else {
nfs_fix_generation(this,inode);
@@ -734,7 +747,7 @@ nfs3svc_getattr_stat_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- status = nfs3_errno_to_nfsstat3 (op_errno);
+ status = nfs3_cbk_errno_status (op_ret, op_errno);
}
nfs3_log_common_res (rpcsvc_request_xid (cs->req), NFS3_GETATTR,
@@ -918,7 +931,7 @@ nfs3svc_truncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -958,7 +971,7 @@ nfs3svc_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -1014,7 +1027,7 @@ nfs3svc_setattr_stat_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -1228,7 +1241,7 @@ nfs3svc_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
(op_errno == ENOENT ? GF_LOG_TRACE : GF_LOG_WARNING),
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- status = nfs3_errno_to_nfsstat3 (op_errno);
+ status = nfs3_cbk_errno_status (op_ret, op_errno);
goto xmit_res;
}
@@ -1272,7 +1285,7 @@ nfs3svc_lookup_parentdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- status = nfs3_errno_to_nfsstat3 (op_errno);
+ status = nfs3_cbk_errno_status (op_ret, op_errno);
goto xmit_res;
}
@@ -1530,7 +1543,7 @@ nfs3svc_access_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- status = nfs3_errno_to_nfsstat3 (op_errno);
+ status = nfs3_cbk_errno_status (op_ret, op_errno);
}
nfs3_log_common_res (rpcsvc_request_xid (cs->req), NFS3_ACCESS, status,
op_errno);
@@ -1670,7 +1683,7 @@ nfs3svc_readlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -1837,7 +1850,7 @@ nfs3svc_read_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto err;
} else
stat = NFS3_OK;
@@ -2023,7 +2036,7 @@ nfs3svc_write_fsync_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
} else
stat = NFS3_OK;
@@ -2083,7 +2096,7 @@ nfs3svc_write_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto err;
}
@@ -2335,7 +2348,7 @@ nfs3svc_create_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -2368,7 +2381,7 @@ nfs3svc_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -2473,7 +2486,7 @@ nfs3svc_create_stat_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
ret = -op_errno;
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -2688,7 +2701,7 @@ nfs3svc_mkdir_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -2720,7 +2733,7 @@ nfs3svc_mkdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -2898,7 +2911,7 @@ nfs3svc_symlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -3060,7 +3073,7 @@ nfs3svc_mknod_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -3092,7 +3105,7 @@ nfs3svc_mknod_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -3350,7 +3363,7 @@ nfs3svc_remove_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
}
if (op_ret == 0)
@@ -3516,7 +3529,7 @@ nfs3svc_rmdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
} else {
stat = NFS3_OK;
}
@@ -3671,7 +3684,7 @@ nfs3svc_rename_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
"%x: rename %s -> %s => -1 (%s)",
rpcsvc_request_xid (cs->req), cs->oploc.path,
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -3876,7 +3889,7 @@ nfs3svc_link_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
"%x: link %s <- %s => -1 (%s)",
rpcsvc_request_xid (cs->req), cs->oploc.path,
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
} else
stat = NFS3_OK;
@@ -4086,7 +4099,7 @@ nfs3svc_readdir_fstat_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto nfs3err;
}
@@ -4141,7 +4154,7 @@ nfs3svc_readdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto err;
}
@@ -4465,7 +4478,7 @@ nfs3_fsstat_stat_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
} else
stat = NFS3_OK;
@@ -4493,7 +4506,7 @@ nfs3_fsstat_statfs_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
ret = -op_errno;
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
goto err;
}
@@ -4652,7 +4665,7 @@ nfs3svc_fsinfo_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- status = nfs3_errno_to_nfsstat3 (op_errno);
+ status = nfs3_cbk_errno_status (op_ret, op_errno);
}else
status = NFS3_OK;
@@ -4794,7 +4807,7 @@ nfs3svc_pathconf_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
} else {
/* If stat fop failed, we can still send the other components
* in a pathconf reply.
@@ -4938,7 +4951,7 @@ nfs3svc_commit_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (GF_NFS, GF_LOG_WARNING,
"%x: %s => -1 (%s)", rpcsvc_request_xid (cs->req),
cs->resolvedloc.path, strerror (op_errno));
- stat = nfs3_errno_to_nfsstat3 (op_errno);
+ stat = nfs3_cbk_errno_status (op_ret, op_errno);
} else
stat = NFS3_OK;