diff options
| author | J. Bruce Fields | 2019-06-05 12:42:05 -0400 |
|---|---|---|
| committer | J. Bruce Fields | 2019-07-03 20:54:03 -0400 |
| commit | 791234448d4798f589110c17d2baaf1bbcc56cb8 (patch) | |
| tree | ec3385bef711d86168e70e4ef192a3af6071ff18 /fs/nfsd/nfs4state.c | |
| parent | 6f4859b8a72638f60c7051247aac63a761f01933 (diff) | |
nfsd: decode implementation id
Decode the implementation ID and display in nfsd/clients/#/info. It may
be help identify the client. It won't be used otherwise.
(When this went into the protocol, I thought the implementation ID would
be a slippery slope towards implementation-specific workarounds as with
the http user-agent. But I guess I was wrong, the risk seems pretty low
now.)
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 640cd221fc77..94de5c348a41 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1899,6 +1899,8 @@ static void __free_client(struct kref *k) free_svc_cred(&clp->cl_cred); kfree(clp->cl_ownerstr_hashtbl); kfree(clp->cl_name.data); + kfree(clp->cl_nii_domain.data); + kfree(clp->cl_nii_name.data); idr_destroy(&clp->cl_stateids); kmem_cache_free(client_slab, clp); } @@ -2261,6 +2263,15 @@ static int client_info_show(struct seq_file *m, void *v) seq_printf(m, "name: "); seq_quote_mem(m, clp->cl_name.data, clp->cl_name.len); seq_printf(m, "\nminor version: %d\n", clp->cl_minorversion); + if (clp->cl_nii_domain.data) { + seq_printf(m, "Implementation domain: "); + seq_quote_mem(m, clp->cl_nii_domain.data, + clp->cl_nii_domain.len); + seq_printf(m, "\nImplementation name: "); + seq_quote_mem(m, clp->cl_nii_name.data, clp->cl_nii_name.len); + seq_printf(m, "\nImplementation time: [%ld, %ld]\n", + clp->cl_nii_time.tv_sec, clp->cl_nii_time.tv_nsec); + } drop_client(clp); return 0; @@ -2901,6 +2912,22 @@ static bool client_has_state(struct nfs4_client *clp) || !list_empty(&clp->async_copies); } +static __be32 copy_impl_id(struct nfs4_client *clp, + struct nfsd4_exchange_id *exid) +{ + if (!exid->nii_domain.data) + return 0; + xdr_netobj_dup(&clp->cl_nii_domain, &exid->nii_domain, GFP_KERNEL); + if (!clp->cl_nii_domain.data) + return nfserr_jukebox; + xdr_netobj_dup(&clp->cl_nii_name, &exid->nii_name, GFP_KERNEL); + if (!clp->cl_nii_name.data) + return nfserr_jukebox; + clp->cl_nii_time.tv_sec = exid->nii_time.tv_sec; + clp->cl_nii_time.tv_nsec = exid->nii_time.tv_nsec; + return 0; +} + __be32 nfsd4_exchange_id(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) @@ -2927,6 +2954,9 @@ nfsd4_exchange_id(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, new = create_client(exid->clname, rqstp, &verf); if (new == NULL) return nfserr_jukebox; + status = copy_impl_id(new, exid); + if (status) + goto out_nolock; switch (exid->spa_how) { case SP4_MACH_CRED: |