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authorJeff Layton <jlayton@kernel.org>2024-04-23 16:25:39 +0300
committerChuck Lever <chuck.lever@oracle.com>2024-05-06 16:07:20 +0300
commit9077d59847896745712dff00839eac14f84b21f8 (patch)
tree80d4e1b38c02f8fc75e0163a2e4960993f3bc738 /fs/nfsd
parent0842b4c80bc7162a803b1558dc6d887e0e8feb39 (diff)
downloadlinux-9077d59847896745712dff00839eac14f84b21f8.tar.xz
NFSD: allow callers to pass in scope string to nfsd_svc
Currently admins set this by using unshare to create a new uts namespace, and then resetting the hostname. With the new netlink interface we can just pass this in directly. Prepare nfsd_svc for this change. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfsctl.c2
-rw-r--r--fs/nfsd/nfsd.h2
-rw-r--r--fs/nfsd/nfssvc.c4
3 files changed, 4 insertions, 4 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 2fe78b802f98..34148d73b6c1 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -405,7 +405,7 @@ static ssize_t write_threads(struct file *file, char *buf, size_t size)
return -EINVAL;
trace_nfsd_ctl_threads(net, newthreads);
mutex_lock(&nfsd_mutex);
- rv = nfsd_svc(newthreads, net, file->f_cred);
+ rv = nfsd_svc(newthreads, net, file->f_cred, NULL);
mutex_unlock(&nfsd_mutex);
if (rv < 0)
return rv;
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 16c5a05f340e..2f6c6f3815b4 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -103,7 +103,7 @@ bool nfssvc_encode_voidres(struct svc_rqst *rqstp,
/*
* Function prototypes.
*/
-int nfsd_svc(int nrservs, struct net *net, const struct cred *cred);
+int nfsd_svc(int nrservs, struct net *net, const struct cred *cred, const char *scope);
int nfsd_dispatch(struct svc_rqst *rqstp);
int nfsd_nrthreads(struct net *);
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index ca193f7ff0e1..e25b9b829749 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -769,7 +769,7 @@ int nfsd_set_nrthreads(int n, int *nthreads, struct net *net)
* this is the first time nrservs is nonzero.
*/
int
-nfsd_svc(int nrservs, struct net *net, const struct cred *cred)
+nfsd_svc(int nrservs, struct net *net, const struct cred *cred, const char *scope)
{
int error;
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
@@ -786,7 +786,7 @@ nfsd_svc(int nrservs, struct net *net, const struct cred *cred)
if (nrservs == 0 && nn->nfsd_serv == NULL)
goto out;
- strscpy(nn->nfsd_name, utsname()->nodename,
+ strscpy(nn->nfsd_name, scope ? scope : utsname()->nodename,
sizeof(nn->nfsd_name));
error = nfsd_create_serv(net);