1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/net/sunrpc/sunrpc_syms.c
4 *
5 * Symbols exported by the sunrpc module.
6 *
7 * Copyright (C) 1997 Olaf Kirch <okir@monad.swb.de>
8 */
9
10#include <linux/module.h>
11
12#include <linux/types.h>
13#include <linux/uio.h>
14#include <linux/unistd.h>
15#include <linux/init.h>
16
17#include <linux/sunrpc/sched.h>
18#include <linux/sunrpc/clnt.h>
19#include <linux/sunrpc/svc.h>
20#include <linux/sunrpc/svcsock.h>
21#include <linux/sunrpc/auth.h>
22#include <linux/workqueue.h>
23#include <linux/sunrpc/rpc_pipe_fs.h>
24#include <linux/sunrpc/xprtsock.h>
25
26#include "sunrpc.h"
27#include "sysfs.h"
28#include "netns.h"
29
30unsigned int sunrpc_net_id;
31EXPORT_SYMBOL_GPL(sunrpc_net_id);
32
33static __net_init int sunrpc_init_net(struct net *net)
34{
35 int err;
36 struct sunrpc_net *sn = net_generic(net, id: sunrpc_net_id);
37
38 err = rpc_proc_init(net);
39 if (err)
40 goto err_proc;
41
42 err = ip_map_cache_create(net);
43 if (err)
44 goto err_ipmap;
45
46 err = unix_gid_cache_create(net);
47 if (err)
48 goto err_unixgid;
49
50 err = rpc_pipefs_init_net(net);
51 if (err)
52 goto err_pipefs;
53
54 INIT_LIST_HEAD(list: &sn->all_clients);
55 spin_lock_init(&sn->rpc_client_lock);
56 spin_lock_init(&sn->rpcb_clnt_lock);
57 return 0;
58
59err_pipefs:
60 unix_gid_cache_destroy(net);
61err_unixgid:
62 ip_map_cache_destroy(net);
63err_ipmap:
64 rpc_proc_exit(net);
65err_proc:
66 return err;
67}
68
69static __net_exit void sunrpc_exit_net(struct net *net)
70{
71 struct sunrpc_net *sn = net_generic(net, id: sunrpc_net_id);
72
73 rpc_pipefs_exit_net(net);
74 unix_gid_cache_destroy(net);
75 ip_map_cache_destroy(net);
76 rpc_proc_exit(net);
77 WARN_ON_ONCE(!list_empty(&sn->all_clients));
78}
79
80static struct pernet_operations sunrpc_net_ops = {
81 .init = sunrpc_init_net,
82 .exit = sunrpc_exit_net,
83 .id = &sunrpc_net_id,
84 .size = sizeof(struct sunrpc_net),
85};
86
87static int __init
88init_sunrpc(void)
89{
90 int err = rpc_init_mempool();
91 if (err)
92 goto out;
93 err = rpcauth_init_module();
94 if (err)
95 goto out2;
96
97 cache_initialize();
98
99 err = register_pernet_subsys(&sunrpc_net_ops);
100 if (err)
101 goto out3;
102
103 err = register_rpc_pipefs();
104 if (err)
105 goto out4;
106
107 err = rpc_sysfs_init();
108 if (err)
109 goto out5;
110
111 sunrpc_debugfs_init();
112#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
113 rpc_register_sysctl();
114#endif
115 svc_init_xprt_sock(); /* svc sock transport */
116 init_socket_xprt(); /* clnt sock transport */
117 return 0;
118
119out5:
120 unregister_rpc_pipefs();
121out4:
122 unregister_pernet_subsys(&sunrpc_net_ops);
123out3:
124 rpcauth_remove_module();
125out2:
126 rpc_destroy_mempool();
127out:
128 return err;
129}
130
131static void __exit
132cleanup_sunrpc(void)
133{
134 rpc_sysfs_exit();
135 rpc_cleanup_clids();
136 xprt_cleanup_ids();
137 xprt_multipath_cleanup_ids();
138 rpcauth_remove_module();
139 cleanup_socket_xprt();
140 svc_cleanup_xprt_sock();
141 sunrpc_debugfs_exit();
142 unregister_rpc_pipefs();
143 rpc_destroy_mempool();
144 unregister_pernet_subsys(&sunrpc_net_ops);
145 auth_domain_cleanup();
146#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
147 rpc_unregister_sysctl();
148#endif
149 rcu_barrier(); /* Wait for completion of call_rcu()'s */
150}
151MODULE_DESCRIPTION("Sun RPC core");
152MODULE_LICENSE("GPL");
153fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
154module_exit(cleanup_sunrpc);
155