Add custom rpcbind callbacks in preparation for the knfsd
per-container version feature.
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
---
fs/nfsd/nfssvc.c | 44 ++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 42 insertions(+), 2 deletions(-)
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 6a52400c85e0..c6649464bc4b 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -32,6 +32,16 @@
extern struct svc_program nfsd_program;
static int nfsd(void *vrqstp);
+static int nfsd_acl_rpcbind_set(struct net *,
+ const struct svc_program *,
+ u32, int,
+ unsigned short,
+ unsigned short);
+static int nfsd_rpcbind_set(struct net *,
+ const struct svc_program *,
+ u32, int,
+ unsigned short,
+ unsigned short);
/*
* nfsd_mutex protects nn->nfsd_serv -- both the pointer itself and the members
@@ -87,7 +97,7 @@ static struct svc_program nfsd_acl_program = {
.pg_stats = &nfsd_acl_svcstats,
.pg_authenticate = &svc_set_client,
.pg_init_request = svc_generic_init_request,
- .pg_rpcbind_set = svc_generic_rpcbind_set,
+ .pg_rpcbind_set = nfsd_acl_rpcbind_set,
};
static struct svc_stat nfsd_acl_svcstats = {
@@ -121,7 +131,7 @@ struct svc_program nfsd_program = {
.pg_stats = &nfsd_svcstats, /* version table */
.pg_authenticate = &svc_set_client, /* export authentication */
.pg_init_request = svc_generic_init_request,
- .pg_rpcbind_set = svc_generic_rpcbind_set,
+ .pg_rpcbind_set = nfsd_rpcbind_set,
};
static bool nfsd_supported_minorversions[NFSD_SUPPORTED_MINOR_VERSION + 1] = {
@@ -130,6 +140,14 @@ static bool nfsd_supported_minorversions[NFSD_SUPPORTED_MINOR_VERSION + 1] = {
[2] = 1,
};
+static bool
+nfsd_support_acl_version(int vers)
+{
+ if (vers >= NFSD_ACL_MINVERS && vers < NFSD_ACL_NRVERS)
+ return nfsd_acl_version[vers] != NULL;
+ return false;
+}
+
int nfsd_vers(int vers, enum vers_op change)
{
if (vers < NFSD_MINVERS || vers >= NFSD_NRVERS)
@@ -670,6 +688,28 @@ nfsd_svc(int nrservs, struct net *net)
return error;
}
+static int
+nfsd_acl_rpcbind_set(struct net *net, const struct svc_program *progp,
+ u32 version, int family, unsigned short proto,
+ unsigned short port)
+{
+ if (!nfsd_support_acl_version(version) ||
+ !nfsd_vers(version, NFSD_TEST))
+ return 0;
+ return svc_generic_rpcbind_set(net, progp, version, family,
+ proto, port);
+}
+
+static int
+nfsd_rpcbind_set(struct net *net, const struct svc_program *progp,
+ u32 version, int family, unsigned short proto,
+ unsigned short port)
+{
+ if (!nfsd_vers(version, NFSD_TEST))
+ return 0;
+ return svc_generic_rpcbind_set(net, progp, version, family,
+ proto, port);
+}
/*
* This is the NFS server kernel thread
--
2.20.1
