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Linux kernel mirror (for testing)
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linux
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 "netns.h"
27
28unsigned int sunrpc_net_id;
29EXPORT_SYMBOL_GPL(sunrpc_net_id);
30
31static __net_init int sunrpc_init_net(struct net *net)
32{
33 int err;
34 struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
35
36 err = rpc_proc_init(net);
37 if (err)
38 goto err_proc;
39
40 err = ip_map_cache_create(net);
41 if (err)
42 goto err_ipmap;
43
44 err = unix_gid_cache_create(net);
45 if (err)
46 goto err_unixgid;
47
48 err = rpc_pipefs_init_net(net);
49 if (err)
50 goto err_pipefs;
51
52 INIT_LIST_HEAD(&sn->all_clients);
53 spin_lock_init(&sn->rpc_client_lock);
54 spin_lock_init(&sn->rpcb_clnt_lock);
55 return 0;
56
57err_pipefs:
58 unix_gid_cache_destroy(net);
59err_unixgid:
60 ip_map_cache_destroy(net);
61err_ipmap:
62 rpc_proc_exit(net);
63err_proc:
64 return err;
65}
66
67static __net_exit void sunrpc_exit_net(struct net *net)
68{
69 struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
70
71 rpc_pipefs_exit_net(net);
72 unix_gid_cache_destroy(net);
73 ip_map_cache_destroy(net);
74 rpc_proc_exit(net);
75 WARN_ON_ONCE(!list_empty(&sn->all_clients));
76}
77
78static struct pernet_operations sunrpc_net_ops = {
79 .init = sunrpc_init_net,
80 .exit = sunrpc_exit_net,
81 .id = &sunrpc_net_id,
82 .size = sizeof(struct sunrpc_net),
83};
84
85static int __init
86init_sunrpc(void)
87{
88 int err = rpc_init_mempool();
89 if (err)
90 goto out;
91 err = rpcauth_init_module();
92 if (err)
93 goto out2;
94
95 cache_initialize();
96
97 err = register_pernet_subsys(&sunrpc_net_ops);
98 if (err)
99 goto out3;
100
101 err = register_rpc_pipefs();
102 if (err)
103 goto out4;
104
105 sunrpc_debugfs_init();
106#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
107 rpc_register_sysctl();
108#endif
109 svc_init_xprt_sock(); /* svc sock transport */
110 init_socket_xprt(); /* clnt sock transport */
111 return 0;
112
113out4:
114 unregister_pernet_subsys(&sunrpc_net_ops);
115out3:
116 rpcauth_remove_module();
117out2:
118 rpc_destroy_mempool();
119out:
120 return err;
121}
122
123static void __exit
124cleanup_sunrpc(void)
125{
126 rpc_cleanup_clids();
127 rpcauth_remove_module();
128 cleanup_socket_xprt();
129 svc_cleanup_xprt_sock();
130 sunrpc_debugfs_exit();
131 unregister_rpc_pipefs();
132 rpc_destroy_mempool();
133 unregister_pernet_subsys(&sunrpc_net_ops);
134#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
135 rpc_unregister_sysctl();
136#endif
137 rcu_barrier(); /* Wait for completion of call_rcu()'s */
138}
139MODULE_LICENSE("GPL");
140fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
141module_exit(cleanup_sunrpc);