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Message-ID: <f7c42dae2b232b3b06e54ceb3f00725893973e02.1705771400.git.lorenzo@kernel.org>
Date: Sat, 20 Jan 2024 18:33:32 +0100
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: linux-nfs@...r.kernel.org
Cc: lorenzo.bianconi@...hat.com,
neilb@...e.de,
jlayton@...nel.org,
kuba@...nel.org,
chuck.lever@...cle.com,
horms@...nel.org,
netdev@...r.kernel.org
Subject: [PATCH v6 3/3] NFSD: add write_ports to netlink command
Introduce write_ports netlink command. For listener-set, userspace is
expected to provide a NFS listeners list it wants to enable (all the
other ports will be closed).
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
Documentation/netlink/specs/nfsd.yaml | 37 +++++
fs/nfsd/netlink.c | 23 +++
fs/nfsd/netlink.h | 3 +
fs/nfsd/nfsctl.c | 196 ++++++++++++++++++++++++++
include/uapi/linux/nfsd_netlink.h | 18 +++
tools/net/ynl/generated/nfsd-user.c | 191 +++++++++++++++++++++++++
tools/net/ynl/generated/nfsd-user.h | 55 ++++++++
7 files changed, 523 insertions(+)
diff --git a/Documentation/netlink/specs/nfsd.yaml b/Documentation/netlink/specs/nfsd.yaml
index 30f18798e84e..296ff24b23ac 100644
--- a/Documentation/netlink/specs/nfsd.yaml
+++ b/Documentation/netlink/specs/nfsd.yaml
@@ -85,6 +85,26 @@ attribute-sets:
type: nest
nested-attributes: nfs-version
multi-attr: true
+ -
+ name: server-instance
+ attributes:
+ -
+ name: transport-name
+ type: string
+ -
+ name: port
+ type: u32
+ -
+ name: inet-proto
+ type: u16
+ -
+ name: server-listener
+ attributes:
+ -
+ name: instance
+ type: nest
+ nested-attributes: server-instance
+ multi-attr: true
operations:
list:
@@ -144,3 +164,20 @@ operations:
reply:
attributes:
- version
+ -
+ name: listener-set
+ doc: set nfs running listeners
+ attribute-set: server-listener
+ flags: [ admin-perm ]
+ do:
+ request:
+ attributes:
+ - instance
+ -
+ name: listener-get
+ doc: get nfs running listeners
+ attribute-set: server-listener
+ do:
+ reply:
+ attributes:
+ - instance
diff --git a/fs/nfsd/netlink.c b/fs/nfsd/netlink.c
index 5cbbd3295543..c772f9e14761 100644
--- a/fs/nfsd/netlink.c
+++ b/fs/nfsd/netlink.c
@@ -16,6 +16,12 @@ const struct nla_policy nfsd_nfs_version_nl_policy[NFSD_A_NFS_VERSION_MINOR + 1]
[NFSD_A_NFS_VERSION_MINOR] = { .type = NLA_U32, },
};
+const struct nla_policy nfsd_server_instance_nl_policy[NFSD_A_SERVER_INSTANCE_INET_PROTO + 1] = {
+ [NFSD_A_SERVER_INSTANCE_TRANSPORT_NAME] = { .type = NLA_NUL_STRING, },
+ [NFSD_A_SERVER_INSTANCE_PORT] = { .type = NLA_U32, },
+ [NFSD_A_SERVER_INSTANCE_INET_PROTO] = { .type = NLA_U16, },
+};
+
/* NFSD_CMD_THREADS_SET - do */
static const struct nla_policy nfsd_threads_set_nl_policy[NFSD_A_SERVER_WORKER_THREADS + 1] = {
[NFSD_A_SERVER_WORKER_THREADS] = { .type = NLA_U32, },
@@ -26,6 +32,11 @@ static const struct nla_policy nfsd_version_set_nl_policy[NFSD_A_SERVER_PROTO_VE
[NFSD_A_SERVER_PROTO_VERSION] = NLA_POLICY_NESTED(nfsd_nfs_version_nl_policy),
};
+/* NFSD_CMD_LISTENER_SET - do */
+static const struct nla_policy nfsd_listener_set_nl_policy[NFSD_A_SERVER_LISTENER_INSTANCE + 1] = {
+ [NFSD_A_SERVER_LISTENER_INSTANCE] = NLA_POLICY_NESTED(nfsd_server_instance_nl_policy),
+};
+
/* Ops table for nfsd */
static const struct genl_split_ops nfsd_nl_ops[] = {
{
@@ -59,6 +70,18 @@ static const struct genl_split_ops nfsd_nl_ops[] = {
.doit = nfsd_nl_version_get_doit,
.flags = GENL_CMD_CAP_DO,
},
+ {
+ .cmd = NFSD_CMD_LISTENER_SET,
+ .doit = nfsd_nl_listener_set_doit,
+ .policy = nfsd_listener_set_nl_policy,
+ .maxattr = NFSD_A_SERVER_LISTENER_INSTANCE,
+ .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO,
+ },
+ {
+ .cmd = NFSD_CMD_LISTENER_GET,
+ .doit = nfsd_nl_listener_get_doit,
+ .flags = GENL_CMD_CAP_DO,
+ },
};
struct genl_family nfsd_nl_family __ro_after_init = {
diff --git a/fs/nfsd/netlink.h b/fs/nfsd/netlink.h
index c9a1be693fef..10a26ad32cd0 100644
--- a/fs/nfsd/netlink.h
+++ b/fs/nfsd/netlink.h
@@ -13,6 +13,7 @@
/* Common nested types */
extern const struct nla_policy nfsd_nfs_version_nl_policy[NFSD_A_NFS_VERSION_MINOR + 1];
+extern const struct nla_policy nfsd_server_instance_nl_policy[NFSD_A_SERVER_INSTANCE_INET_PROTO + 1];
int nfsd_nl_rpc_status_get_start(struct netlink_callback *cb);
int nfsd_nl_rpc_status_get_done(struct netlink_callback *cb);
@@ -23,6 +24,8 @@ int nfsd_nl_threads_set_doit(struct sk_buff *skb, struct genl_info *info);
int nfsd_nl_threads_get_doit(struct sk_buff *skb, struct genl_info *info);
int nfsd_nl_version_set_doit(struct sk_buff *skb, struct genl_info *info);
int nfsd_nl_version_get_doit(struct sk_buff *skb, struct genl_info *info);
+int nfsd_nl_listener_set_doit(struct sk_buff *skb, struct genl_info *info);
+int nfsd_nl_listener_get_doit(struct sk_buff *skb, struct genl_info *info);
extern struct genl_family nfsd_nl_family;
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 53af82303f93..562b209f2921 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1896,6 +1896,202 @@ int nfsd_nl_version_get_doit(struct sk_buff *skb, struct genl_info *info)
return err;
}
+/**
+ * nfsd_nl_listener_set_doit - set the nfs running listeners
+ * @skb: reply buffer
+ * @info: netlink metadata and command arguments
+ *
+ * Return 0 on success or a negative errno.
+ */
+int nfsd_nl_listener_set_doit(struct sk_buff *skb, struct genl_info *info)
+{
+ struct nlattr *tb[ARRAY_SIZE(nfsd_server_instance_nl_policy)];
+ struct net *net = genl_info_net(info);
+ struct svc_xprt *xprt, *tmp_xprt;
+ const struct nlattr *attr;
+ struct svc_serv *serv;
+ const char *xcl_name;
+ struct nfsd_net *nn;
+ int port, err, rem;
+ sa_family_t af;
+
+ if (GENL_REQ_ATTR_CHECK(info, NFSD_A_SERVER_LISTENER_INSTANCE))
+ return -EINVAL;
+
+ mutex_lock(&nfsd_mutex);
+
+ err = nfsd_create_serv(net);
+ if (err) {
+ mutex_unlock(&nfsd_mutex);
+ return err;
+ }
+
+ nn = net_generic(net, nfsd_net_id);
+ serv = nn->nfsd_serv;
+
+ /* 1- create brand new listeners */
+ nlmsg_for_each_attr(attr, info->nlhdr, GENL_HDRLEN, rem) {
+ if (nla_type(attr) != NFSD_A_SERVER_LISTENER_INSTANCE)
+ continue;
+
+ if (nla_parse_nested(tb, ARRAY_SIZE(tb), attr,
+ nfsd_server_instance_nl_policy,
+ info->extack) < 0)
+ continue;
+
+ if (!tb[NFSD_A_SERVER_INSTANCE_TRANSPORT_NAME] ||
+ !tb[NFSD_A_SERVER_INSTANCE_PORT])
+ continue;
+
+ xcl_name = nla_data(tb[NFSD_A_SERVER_INSTANCE_TRANSPORT_NAME]);
+ port = nla_get_u32(tb[NFSD_A_SERVER_INSTANCE_PORT]);
+ if (port < 1 || port > USHRT_MAX)
+ continue;
+
+ af = nla_get_u32(tb[NFSD_A_SERVER_INSTANCE_INET_PROTO]);
+ if (af != PF_INET && af != PF_INET6)
+ continue;
+
+ xprt = svc_find_xprt(serv, xcl_name, net, PF_INET, port);
+ if (xprt) {
+ svc_xprt_put(xprt);
+ continue;
+ }
+
+ /* create new listerner */
+ if (svc_xprt_create(serv, xcl_name, net, af, port,
+ SVC_SOCK_ANONYMOUS, get_current_cred()))
+ continue;
+ }
+
+ /* 2- remove stale listeners */
+ spin_lock_bh(&serv->sv_lock);
+ list_for_each_entry_safe(xprt, tmp_xprt, &serv->sv_permsocks,
+ xpt_list) {
+ struct svc_xprt *rqt_xprt = NULL;
+
+ nlmsg_for_each_attr(attr, info->nlhdr, GENL_HDRLEN, rem) {
+ if (nla_type(attr) != NFSD_A_SERVER_LISTENER_INSTANCE)
+ continue;
+
+ if (nla_parse_nested(tb, ARRAY_SIZE(tb), attr,
+ nfsd_server_instance_nl_policy,
+ info->extack) < 0)
+ continue;
+
+ if (!tb[NFSD_A_SERVER_INSTANCE_TRANSPORT_NAME] ||
+ !tb[NFSD_A_SERVER_INSTANCE_PORT])
+ continue;
+
+ xcl_name = nla_data(
+ tb[NFSD_A_SERVER_INSTANCE_TRANSPORT_NAME]);
+ port = nla_get_u32(tb[NFSD_A_SERVER_INSTANCE_PORT]);
+ if (port < 1 || port > USHRT_MAX)
+ continue;
+
+ af = nla_get_u32(tb[NFSD_A_SERVER_INSTANCE_INET_PROTO]);
+ if (af != PF_INET && af != PF_INET6)
+ continue;
+
+ if (!strcmp(xprt->xpt_class->xcl_name, xcl_name) &&
+ port == svc_xprt_local_port(xprt) &&
+ af == xprt->xpt_local.ss_family &&
+ xprt->xpt_net == net) {
+ rqt_xprt = xprt;
+ break;
+ }
+ }
+
+ /* remove stale listener */
+ if (!rqt_xprt) {
+ spin_unlock_bh(&serv->sv_lock);
+ svc_xprt_close(xprt);
+ spin_lock_bh(&serv->sv_lock);
+ }
+ }
+ spin_unlock_bh(&serv->sv_lock);
+
+ if (!serv->sv_nrthreads && list_empty(&nn->nfsd_serv->sv_permsocks))
+ nfsd_destroy_serv(net);
+
+ mutex_unlock(&nfsd_mutex);
+
+ return 0;
+}
+
+/**
+ * nfsd_nl_listener_get_doit - get the nfs running listeners
+ * @skb: reply buffer
+ * @info: netlink metadata and command arguments
+ *
+ * Return 0 on success or a negative errno.
+ */
+int nfsd_nl_listener_get_doit(struct sk_buff *skb, struct genl_info *info)
+{
+ struct svc_xprt *xprt;
+ struct svc_serv *serv;
+ struct nfsd_net *nn;
+ void *hdr;
+ int err;
+
+ skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ hdr = genlmsg_iput(skb, info);
+ if (!hdr) {
+ err = -EMSGSIZE;
+ goto err_free_msg;
+ }
+
+ mutex_lock(&nfsd_mutex);
+ nn = net_generic(genl_info_net(info), nfsd_net_id);
+ if (!nn->nfsd_serv) {
+ err = -EINVAL;
+ goto err_nfsd_unlock;
+ }
+
+ serv = nn->nfsd_serv;
+ spin_lock_bh(&serv->sv_lock);
+ list_for_each_entry(xprt, &serv->sv_permsocks, xpt_list) {
+ struct nlattr *attr;
+
+ attr = nla_nest_start_noflag(skb,
+ NFSD_A_SERVER_LISTENER_INSTANCE);
+ if (!attr) {
+ err = -EINVAL;
+ goto err_serv_unlock;
+ }
+
+ if (nla_put_string(skb, NFSD_A_SERVER_INSTANCE_TRANSPORT_NAME,
+ xprt->xpt_class->xcl_name) ||
+ nla_put_u32(skb, NFSD_A_SERVER_INSTANCE_PORT,
+ svc_xprt_local_port(xprt)) ||
+ nla_put_u16(skb, NFSD_A_SERVER_INSTANCE_INET_PROTO,
+ xprt->xpt_local.ss_family)) {
+ err = -EINVAL;
+ goto err_serv_unlock;
+ }
+
+ nla_nest_end(skb, attr);
+ }
+ spin_unlock_bh(&serv->sv_lock);
+ mutex_unlock(&nfsd_mutex);
+
+ genlmsg_end(skb, hdr);
+
+ return genlmsg_reply(skb, info);
+
+err_serv_unlock:
+ spin_unlock_bh(&serv->sv_lock);
+err_nfsd_unlock:
+ mutex_unlock(&nfsd_mutex);
+err_free_msg:
+ nlmsg_free(skb);
+
+ return err;
+}
+
/**
* nfsd_net_init - Prepare the nfsd_net portion of a new net namespace
* @net: a freshly-created network namespace
diff --git a/include/uapi/linux/nfsd_netlink.h b/include/uapi/linux/nfsd_netlink.h
index 2a06f9fe6fe9..659ab76b8840 100644
--- a/include/uapi/linux/nfsd_netlink.h
+++ b/include/uapi/linux/nfsd_netlink.h
@@ -51,12 +51,30 @@ enum {
NFSD_A_SERVER_PROTO_MAX = (__NFSD_A_SERVER_PROTO_MAX - 1)
};
+enum {
+ NFSD_A_SERVER_INSTANCE_TRANSPORT_NAME = 1,
+ NFSD_A_SERVER_INSTANCE_PORT,
+ NFSD_A_SERVER_INSTANCE_INET_PROTO,
+
+ __NFSD_A_SERVER_INSTANCE_MAX,
+ NFSD_A_SERVER_INSTANCE_MAX = (__NFSD_A_SERVER_INSTANCE_MAX - 1)
+};
+
+enum {
+ NFSD_A_SERVER_LISTENER_INSTANCE = 1,
+
+ __NFSD_A_SERVER_LISTENER_MAX,
+ NFSD_A_SERVER_LISTENER_MAX = (__NFSD_A_SERVER_LISTENER_MAX - 1)
+};
+
enum {
NFSD_CMD_RPC_STATUS_GET = 1,
NFSD_CMD_THREADS_SET,
NFSD_CMD_THREADS_GET,
NFSD_CMD_VERSION_SET,
NFSD_CMD_VERSION_GET,
+ NFSD_CMD_LISTENER_SET,
+ NFSD_CMD_LISTENER_GET,
__NFSD_CMD_MAX,
NFSD_CMD_MAX = (__NFSD_CMD_MAX - 1)
diff --git a/tools/net/ynl/generated/nfsd-user.c b/tools/net/ynl/generated/nfsd-user.c
index ad498543f464..d52f392c7f59 100644
--- a/tools/net/ynl/generated/nfsd-user.c
+++ b/tools/net/ynl/generated/nfsd-user.c
@@ -19,6 +19,8 @@ static const char * const nfsd_op_strmap[] = {
[NFSD_CMD_THREADS_GET] = "threads-get",
[NFSD_CMD_VERSION_SET] = "version-set",
[NFSD_CMD_VERSION_GET] = "version-get",
+ [NFSD_CMD_LISTENER_SET] = "listener-set",
+ [NFSD_CMD_LISTENER_GET] = "listener-get",
};
const char *nfsd_op_str(int op)
@@ -39,6 +41,17 @@ struct ynl_policy_nest nfsd_nfs_version_nest = {
.table = nfsd_nfs_version_policy,
};
+struct ynl_policy_attr nfsd_server_instance_policy[NFSD_A_SERVER_INSTANCE_MAX + 1] = {
+ [NFSD_A_SERVER_INSTANCE_TRANSPORT_NAME] = { .name = "transport-name", .type = YNL_PT_NUL_STR, },
+ [NFSD_A_SERVER_INSTANCE_PORT] = { .name = "port", .type = YNL_PT_U32, },
+ [NFSD_A_SERVER_INSTANCE_INET_PROTO] = { .name = "inet-proto", .type = YNL_PT_U16, },
+};
+
+struct ynl_policy_nest nfsd_server_instance_nest = {
+ .max_attr = NFSD_A_SERVER_INSTANCE_MAX,
+ .table = nfsd_server_instance_policy,
+};
+
struct ynl_policy_attr nfsd_rpc_status_policy[NFSD_A_RPC_STATUS_MAX + 1] = {
[NFSD_A_RPC_STATUS_XID] = { .name = "xid", .type = YNL_PT_U32, },
[NFSD_A_RPC_STATUS_FLAGS] = { .name = "flags", .type = YNL_PT_U32, },
@@ -79,6 +92,15 @@ struct ynl_policy_nest nfsd_server_proto_nest = {
.table = nfsd_server_proto_policy,
};
+struct ynl_policy_attr nfsd_server_listener_policy[NFSD_A_SERVER_LISTENER_MAX + 1] = {
+ [NFSD_A_SERVER_LISTENER_INSTANCE] = { .name = "instance", .type = YNL_PT_NEST, .nest = &nfsd_server_instance_nest, },
+};
+
+struct ynl_policy_nest nfsd_server_listener_nest = {
+ .max_attr = NFSD_A_SERVER_LISTENER_MAX,
+ .table = nfsd_server_listener_policy,
+};
+
/* Common nested types */
void nfsd_nfs_version_free(struct nfsd_nfs_version *obj)
{
@@ -124,6 +146,64 @@ int nfsd_nfs_version_parse(struct ynl_parse_arg *yarg,
return 0;
}
+void nfsd_server_instance_free(struct nfsd_server_instance *obj)
+{
+ free(obj->transport_name);
+}
+
+int nfsd_server_instance_put(struct nlmsghdr *nlh, unsigned int attr_type,
+ struct nfsd_server_instance *obj)
+{
+ struct nlattr *nest;
+
+ nest = mnl_attr_nest_start(nlh, attr_type);
+ if (obj->_present.transport_name_len)
+ mnl_attr_put_strz(nlh, NFSD_A_SERVER_INSTANCE_TRANSPORT_NAME, obj->transport_name);
+ if (obj->_present.port)
+ mnl_attr_put_u32(nlh, NFSD_A_SERVER_INSTANCE_PORT, obj->port);
+ if (obj->_present.inet_proto)
+ mnl_attr_put_u16(nlh, NFSD_A_SERVER_INSTANCE_INET_PROTO, obj->inet_proto);
+ mnl_attr_nest_end(nlh, nest);
+
+ return 0;
+}
+
+int nfsd_server_instance_parse(struct ynl_parse_arg *yarg,
+ const struct nlattr *nested)
+{
+ struct nfsd_server_instance *dst = yarg->data;
+ const struct nlattr *attr;
+
+ mnl_attr_for_each_nested(attr, nested) {
+ unsigned int type = mnl_attr_get_type(attr);
+
+ if (type == NFSD_A_SERVER_INSTANCE_TRANSPORT_NAME) {
+ unsigned int len;
+
+ if (ynl_attr_validate(yarg, attr))
+ return MNL_CB_ERROR;
+
+ len = strnlen(mnl_attr_get_str(attr), mnl_attr_get_payload_len(attr));
+ dst->_present.transport_name_len = len;
+ dst->transport_name = malloc(len + 1);
+ memcpy(dst->transport_name, mnl_attr_get_str(attr), len);
+ dst->transport_name[len] = 0;
+ } else if (type == NFSD_A_SERVER_INSTANCE_PORT) {
+ if (ynl_attr_validate(yarg, attr))
+ return MNL_CB_ERROR;
+ dst->_present.port = 1;
+ dst->port = mnl_attr_get_u32(attr);
+ } else if (type == NFSD_A_SERVER_INSTANCE_INET_PROTO) {
+ if (ynl_attr_validate(yarg, attr))
+ return MNL_CB_ERROR;
+ dst->_present.inet_proto = 1;
+ dst->inet_proto = mnl_attr_get_u16(attr);
+ }
+ }
+
+ return 0;
+}
+
/* ============== NFSD_CMD_RPC_STATUS_GET ============== */
/* NFSD_CMD_RPC_STATUS_GET - dump */
int nfsd_rpc_status_get_rsp_dump_parse(const struct nlmsghdr *nlh, void *data)
@@ -467,6 +547,117 @@ struct nfsd_version_get_rsp *nfsd_version_get(struct ynl_sock *ys)
return NULL;
}
+/* ============== NFSD_CMD_LISTENER_SET ============== */
+/* NFSD_CMD_LISTENER_SET - do */
+void nfsd_listener_set_req_free(struct nfsd_listener_set_req *req)
+{
+ unsigned int i;
+
+ for (i = 0; i < req->n_instance; i++)
+ nfsd_server_instance_free(&req->instance[i]);
+ free(req->instance);
+ free(req);
+}
+
+int nfsd_listener_set(struct ynl_sock *ys, struct nfsd_listener_set_req *req)
+{
+ struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
+ struct nlmsghdr *nlh;
+ int err;
+
+ nlh = ynl_gemsg_start_req(ys, ys->family_id, NFSD_CMD_LISTENER_SET, 1);
+ ys->req_policy = &nfsd_server_listener_nest;
+
+ for (unsigned int i = 0; i < req->n_instance; i++)
+ nfsd_server_instance_put(nlh, NFSD_A_SERVER_LISTENER_INSTANCE, &req->instance[i]);
+
+ err = ynl_exec(ys, nlh, &yrs);
+ if (err < 0)
+ return -1;
+
+ return 0;
+}
+
+/* ============== NFSD_CMD_LISTENER_GET ============== */
+/* NFSD_CMD_LISTENER_GET - do */
+void nfsd_listener_get_rsp_free(struct nfsd_listener_get_rsp *rsp)
+{
+ unsigned int i;
+
+ for (i = 0; i < rsp->n_instance; i++)
+ nfsd_server_instance_free(&rsp->instance[i]);
+ free(rsp->instance);
+ free(rsp);
+}
+
+int nfsd_listener_get_rsp_parse(const struct nlmsghdr *nlh, void *data)
+{
+ struct nfsd_listener_get_rsp *dst;
+ struct ynl_parse_arg *yarg = data;
+ unsigned int n_instance = 0;
+ const struct nlattr *attr;
+ struct ynl_parse_arg parg;
+ int i;
+
+ dst = yarg->data;
+ parg.ys = yarg->ys;
+
+ if (dst->instance)
+ return ynl_error_parse(yarg, "attribute already present (server-listener.instance)");
+
+ mnl_attr_for_each(attr, nlh, sizeof(struct genlmsghdr)) {
+ unsigned int type = mnl_attr_get_type(attr);
+
+ if (type == NFSD_A_SERVER_LISTENER_INSTANCE) {
+ n_instance++;
+ }
+ }
+
+ if (n_instance) {
+ dst->instance = calloc(n_instance, sizeof(*dst->instance));
+ dst->n_instance = n_instance;
+ i = 0;
+ parg.rsp_policy = &nfsd_server_instance_nest;
+ mnl_attr_for_each(attr, nlh, sizeof(struct genlmsghdr)) {
+ if (mnl_attr_get_type(attr) == NFSD_A_SERVER_LISTENER_INSTANCE) {
+ parg.data = &dst->instance[i];
+ if (nfsd_server_instance_parse(&parg, attr))
+ return MNL_CB_ERROR;
+ i++;
+ }
+ }
+ }
+
+ return MNL_CB_OK;
+}
+
+struct nfsd_listener_get_rsp *nfsd_listener_get(struct ynl_sock *ys)
+{
+ struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
+ struct nfsd_listener_get_rsp *rsp;
+ struct nlmsghdr *nlh;
+ int err;
+
+ nlh = ynl_gemsg_start_req(ys, ys->family_id, NFSD_CMD_LISTENER_GET, 1);
+ ys->req_policy = &nfsd_server_listener_nest;
+ yrs.yarg.rsp_policy = &nfsd_server_listener_nest;
+
+ rsp = calloc(1, sizeof(*rsp));
+ yrs.yarg.data = rsp;
+ yrs.cb = nfsd_listener_get_rsp_parse;
+ yrs.rsp_cmd = NFSD_CMD_LISTENER_GET;
+
+ err = ynl_exec(ys, nlh, &yrs);
+ if (err < 0)
+ goto err_free;
+
+ return rsp;
+
+err_free:
+ nfsd_listener_get_rsp_free(rsp);
+ return NULL;
+}
+
const struct ynl_family ynl_nfsd_family = {
.name = "nfsd",
};
diff --git a/tools/net/ynl/generated/nfsd-user.h b/tools/net/ynl/generated/nfsd-user.h
index d062ee8fa8b6..5765fb6f2ef5 100644
--- a/tools/net/ynl/generated/nfsd-user.h
+++ b/tools/net/ynl/generated/nfsd-user.h
@@ -29,6 +29,18 @@ struct nfsd_nfs_version {
__u32 minor;
};
+struct nfsd_server_instance {
+ struct {
+ __u32 transport_name_len;
+ __u32 port:1;
+ __u32 inet_proto:1;
+ } _present;
+
+ char *transport_name;
+ __u32 port;
+ __u16 inet_proto;
+};
+
/* ============== NFSD_CMD_RPC_STATUS_GET ============== */
/* NFSD_CMD_RPC_STATUS_GET - dump */
struct nfsd_rpc_status_get_rsp_dump {
@@ -164,4 +176,47 @@ void nfsd_version_get_rsp_free(struct nfsd_version_get_rsp *rsp);
*/
struct nfsd_version_get_rsp *nfsd_version_get(struct ynl_sock *ys);
+/* ============== NFSD_CMD_LISTENER_SET ============== */
+/* NFSD_CMD_LISTENER_SET - do */
+struct nfsd_listener_set_req {
+ unsigned int n_instance;
+ struct nfsd_server_instance *instance;
+};
+
+static inline struct nfsd_listener_set_req *nfsd_listener_set_req_alloc(void)
+{
+ return calloc(1, sizeof(struct nfsd_listener_set_req));
+}
+void nfsd_listener_set_req_free(struct nfsd_listener_set_req *req);
+
+static inline void
+__nfsd_listener_set_req_set_instance(struct nfsd_listener_set_req *req,
+ struct nfsd_server_instance *instance,
+ unsigned int n_instance)
+{
+ free(req->instance);
+ req->instance = instance;
+ req->n_instance = n_instance;
+}
+
+/*
+ * set nfs running listeners
+ */
+int nfsd_listener_set(struct ynl_sock *ys, struct nfsd_listener_set_req *req);
+
+/* ============== NFSD_CMD_LISTENER_GET ============== */
+/* NFSD_CMD_LISTENER_GET - do */
+
+struct nfsd_listener_get_rsp {
+ unsigned int n_instance;
+ struct nfsd_server_instance *instance;
+};
+
+void nfsd_listener_get_rsp_free(struct nfsd_listener_get_rsp *rsp);
+
+/*
+ * get nfs running listeners
+ */
+struct nfsd_listener_get_rsp *nfsd_listener_get(struct ynl_sock *ys);
+
#endif /* _LINUX_NFSD_GEN_H */
--
2.43.0
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