From d80a903a1c2acd73afbf06598955a0887433f8c6 Mon Sep 17 00:00:00 2001 From: Rick Macklem Date: Thu, 20 May 2021 18:37:40 -0700 Subject: [PATCH] nfsd: Add support for CLAIM_DELEG_PREV_FH to the NFSv4.1/4.2 Open Commit b3d4c70dc60f added support for CLAIM_DELEG_CUR_FH to Open. While doing this, I noticed that CLAIM_DELEG_PREV_FH support could be added the same way. Although I am not aware of any extant NFSv4.1/4.2 client that uses this claim type, it seems prudent to add support for this variant of Open to the NFSv4.1/4.2 server. This patch does not affect mounts from extant NFSv4.1/4.2 clients, as far as I know. MFC after: 2 weeks --- sys/fs/nfsserver/nfs_nfsdserv.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/sys/fs/nfsserver/nfs_nfsdserv.c b/sys/fs/nfsserver/nfs_nfsdserv.c index 5d6cac23b722..ef78f90fabfc 100644 --- a/sys/fs/nfsserver/nfs_nfsdserv.c +++ b/sys/fs/nfsserver/nfs_nfsdserv.c @@ -2987,7 +2987,8 @@ nfsrvd_open(struct nfsrv_descript *nd, __unused int isdgram, stateid.seqid = fxdr_unsigned(u_int32_t, *tl++); NFSBCOPY((caddr_t)tl,(caddr_t)stateid.other,NFSX_STATEIDOTHER); stp->ls_flags |= NFSLCK_DELEGCUR; - } else if (claim == NFSV4OPEN_CLAIMDELEGATEPREV) { + } else if (claim == NFSV4OPEN_CLAIMDELEGATEPREV || claim == + NFSV4OPEN_CLAIMDELEGATEPREVFH) { stp->ls_flags |= NFSLCK_DELEGPREV; } if (claim == NFSV4OPEN_CLAIMNULL || claim == NFSV4OPEN_CLAIMDELEGATECUR @@ -3057,7 +3058,8 @@ nfsrvd_open(struct nfsrv_descript *nd, __unused int isdgram, &exclusive_flag, &nva, cverf, create, aclp, &attrbits, nd->nd_cred, exp, &vp); } else if (claim == NFSV4OPEN_CLAIMPREVIOUS || claim == - NFSV4OPEN_CLAIMFH || claim == NFSV4OPEN_CLAIMDELEGATECURFH) { + NFSV4OPEN_CLAIMFH || claim == NFSV4OPEN_CLAIMDELEGATECURFH || + claim == NFSV4OPEN_CLAIMDELEGATEPREVFH) { if (claim == NFSV4OPEN_CLAIMPREVIOUS) { NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); i = fxdr_unsigned(int, *tl);