The branch stable/13 has been updated by rmacklem:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=b7ef4b7eb23dd88901aceb569225a79161e08e3d

commit b7ef4b7eb23dd88901aceb569225a79161e08e3d
Author:     Rick Macklem <[email protected]>
AuthorDate: 2021-05-08 00:30:56 +0000
Commit:     Rick Macklem <[email protected]>
CommitDate: 2021-05-22 01:16:01 +0000

    nfscl: Add support for va_birthtime to NFSv4
    
    There is a NFSv4 file attribute called TimeCreate
    that can be used for va_birthtime.
    r362175 added some support for use of TimeCreate.
    This patch completes support of va_birthtime by adding
    support for setting this attribute to the server.
    It also eanbles the client to
    acquire and set the attribute for a NFSv4
    server that supports the attribute.
    
    (cherry picked from commit dd02d9d605b6d8849e858d7644bb84b45c606b46)
---
 sys/fs/nfs/nfs_commonsubs.c      | 2 ++
 sys/fs/nfs/nfsproto.h            | 2 ++
 sys/fs/nfsclient/nfs_clcomsubs.c | 4 ++++
 sys/fs/nfsclient/nfs_clport.c    | 2 ++
 sys/fs/nfsclient/nfs_clrpcops.c  | 3 +++
 sys/fs/nfsclient/nfs_clvnops.c   | 5 ++++-
 sys/fs/nfsserver/nfs_nfsdserv.c  | 9 +++++++++
 7 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/sys/fs/nfs/nfs_commonsubs.c b/sys/fs/nfs/nfs_commonsubs.c
index 539cbbbde7d2..7ddef0f19ddc 100644
--- a/sys/fs/nfs/nfs_commonsubs.c
+++ b/sys/fs/nfs/nfs_commonsubs.c
@@ -1248,6 +1248,8 @@ nfsv4_loadattr(struct nfsrv_descript *nd, vnode_t vp,
                        nap->na_rdev = (NFSDEV_T)0;
                        nap->na_mtime.tv_sec = 0;
                        nap->na_mtime.tv_nsec = 0;
+                       nap->na_btime.tv_sec = -1;
+                       nap->na_btime.tv_nsec = 0;
                        nap->na_gen = 0;
                        nap->na_flags = 0;
                        nap->na_blocksize = NFS_FABLKSIZE;
diff --git a/sys/fs/nfs/nfsproto.h b/sys/fs/nfs/nfsproto.h
index 236d8c14ff24..a1a992d14cdb 100644
--- a/sys/fs/nfs/nfsproto.h
+++ b/sys/fs/nfs/nfsproto.h
@@ -1227,6 +1227,7 @@ struct nfsv3_sattr {
        NFSATTRBM_RAWDEV |                                              \
        NFSATTRBM_SPACEUSED |                                           \
        NFSATTRBM_TIMEACCESS |                                          \
+       NFSATTRBM_TIMECREATE |                                          \
        NFSATTRBM_TIMEMETADATA |                                        \
        NFSATTRBM_TIMEMODIFY)
 
@@ -1258,6 +1259,7 @@ struct nfsv3_sattr {
        NFSATTRBM_RAWDEV |                                              \
        NFSATTRBM_SPACEUSED |                                           \
        NFSATTRBM_TIMEACCESS |                                          \
+       NFSATTRBM_TIMECREATE |                                          \
        NFSATTRBM_TIMEMETADATA |                                        \
        NFSATTRBM_TIMEMODIFY)
 
diff --git a/sys/fs/nfsclient/nfs_clcomsubs.c b/sys/fs/nfsclient/nfs_clcomsubs.c
index 8a51d51f093f..554f5e820f54 100644
--- a/sys/fs/nfsclient/nfs_clcomsubs.c
+++ b/sys/fs/nfsclient/nfs_clcomsubs.c
@@ -284,6 +284,8 @@ nfsm_loadattr(struct nfsrv_descript *nd, struct nfsvattr 
*nap)
                fxdr_nfsv3time(&fp->fa3_atime, &nap->na_atime);
                fxdr_nfsv3time(&fp->fa3_ctime, &nap->na_ctime);
                fxdr_nfsv3time(&fp->fa3_mtime, &nap->na_mtime);
+               nap->na_btime.tv_sec = -1;
+               nap->na_btime.tv_nsec = 0;
                nap->na_flags = 0;
                nap->na_gen = 0;
                nap->na_filerev = 0;
@@ -315,6 +317,8 @@ nfsm_loadattr(struct nfsrv_descript *nd, struct nfsvattr 
*nap)
                nap->na_ctime.tv_sec = fxdr_unsigned(u_int32_t,
                    fp->fa2_ctime.nfsv2_sec);
                nap->na_ctime.tv_nsec = 0;
+               nap->na_btime.tv_sec = -1;
+               nap->na_btime.tv_nsec = 0;
                nap->na_gen = fxdr_unsigned(u_int32_t,fp->fa2_ctime.nfsv2_usec);
                nap->na_filerev = 0;
        }
diff --git a/sys/fs/nfsclient/nfs_clport.c b/sys/fs/nfsclient/nfs_clport.c
index 64820cd11f1c..492b93340e4e 100644
--- a/sys/fs/nfsclient/nfs_clport.c
+++ b/sys/fs/nfsclient/nfs_clport.c
@@ -415,6 +415,7 @@ ncl_copy_vattr(struct vattr *dst, struct vattr *src)
        dst->va_atime = src->va_atime;
        dst->va_mtime = src->va_mtime;
        dst->va_ctime = src->va_ctime;
+       dst->va_birthtime = src->va_birthtime;
        dst->va_gen = src->va_gen;
        dst->va_flags = src->va_flags;
        dst->va_rdev = src->va_rdev;
@@ -466,6 +467,7 @@ nfscl_loadattrcache(struct vnode **vpp, struct nfsvattr 
*nap, void *nvaper,
                np->n_vattr.na_size = nap->na_size;
                np->n_vattr.na_mtime = nap->na_mtime;
                np->n_vattr.na_ctime = nap->na_ctime;
+               np->n_vattr.na_btime = nap->na_btime;
                np->n_vattr.na_fsid = nap->na_fsid;
                np->n_vattr.na_mode = nap->na_mode;
        } else {
diff --git a/sys/fs/nfsclient/nfs_clrpcops.c b/sys/fs/nfsclient/nfs_clrpcops.c
index 43050e15050a..ef345dc391e5 100644
--- a/sys/fs/nfsclient/nfs_clrpcops.c
+++ b/sys/fs/nfsclient/nfs_clrpcops.c
@@ -3548,6 +3548,9 @@ nfsrpc_readdirplus(vnode_t vp, struct uio *uiop, 
nfsuint64 *cookiep,
                if (gotmnton)
                        NFSSETBIT_ATTRBIT(&attrbits,
                            NFSATTRBIT_MOUNTEDONFILEID);
+               if (!NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr,
+                   NFSATTRBIT_TIMECREATE))
+                       NFSCLRBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMECREATE);
        }
 
        /*
diff --git a/sys/fs/nfsclient/nfs_clvnops.c b/sys/fs/nfsclient/nfs_clvnops.c
index 5f81bb5b42a4..2311ea099042 100644
--- a/sys/fs/nfsclient/nfs_clvnops.c
+++ b/sys/fs/nfsclient/nfs_clvnops.c
@@ -1024,7 +1024,9 @@ nfs_setattr(struct vop_setattr_args *ap)
         */
        if ((vap->va_flags != VNOVAL || vap->va_uid != (uid_t)VNOVAL ||
            vap->va_gid != (gid_t)VNOVAL || vap->va_atime.tv_sec != VNOVAL ||
-           vap->va_mtime.tv_sec != VNOVAL || vap->va_mode != (mode_t)VNOVAL) &&
+           vap->va_mtime.tv_sec != VNOVAL ||
+           vap->va_birthtime.tv_sec != VNOVAL ||
+           vap->va_mode != (mode_t)VNOVAL) &&
            (vp->v_mount->mnt_flag & MNT_RDONLY))
                return (EROFS);
        if (vap->va_size != VNOVAL) {
@@ -1037,6 +1039,7 @@ nfs_setattr(struct vop_setattr_args *ap)
                case VFIFO:
                        if (vap->va_mtime.tv_sec == VNOVAL &&
                            vap->va_atime.tv_sec == VNOVAL &&
+                           vap->va_birthtime.tv_sec == VNOVAL &&
                            vap->va_mode == (mode_t)VNOVAL &&
                            vap->va_uid == (uid_t)VNOVAL &&
                            vap->va_gid == (gid_t)VNOVAL)
diff --git a/sys/fs/nfsserver/nfs_nfsdserv.c b/sys/fs/nfsserver/nfs_nfsdserv.c
index 0c4fcebb8e05..8aa39e5018d9 100644
--- a/sys/fs/nfsserver/nfs_nfsdserv.c
+++ b/sys/fs/nfsserver/nfs_nfsdserv.c
@@ -491,6 +491,15 @@ nfsrvd_setattr(struct nfsrv_descript *nd, __unused int 
isdgram,
                        NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_TIMEMODIFYSET);
                }
            }
+           if (!nd->nd_repstat &&
+               NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMECREATE)) {
+               NFSVNO_ATTRINIT(&nva2);
+               NFSVNO_SETATTRVAL(&nva2, btime, nva.na_btime);
+               nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p,
+                   exp);
+               if (!nd->nd_repstat)
+                   NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_TIMECREATE);
+           }
            if (!nd->nd_repstat &&
                (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_MODE) ||
                 NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_MODESETMASKED))) {
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