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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 "sunrpc.h"
27#include "netns.h"
28
29unsigned int sunrpc_net_id;
30EXPORT_SYMBOL_GPL(sunrpc_net_id);
31
32static __net_init int sunrpc_init_net(struct net *net)
33{
34 int err;
35 struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
36
37 err = rpc_proc_init(net);
38 if (err)
39 goto err_proc;
40
41 err = ip_map_cache_create(net);
42 if (err)
43 goto err_ipmap;
44
45 err = unix_gid_cache_create(net);
46 if (err)
47 goto err_unixgid;
48
49 err = rpc_pipefs_init_net(net);
50 if (err)
51 goto err_pipefs;
52
53 INIT_LIST_HEAD(&sn->all_clients);
54 spin_lock_init(&sn->rpc_client_lock);
55 spin_lock_init(&sn->rpcb_clnt_lock);
56 return 0;
57
58err_pipefs:
59 unix_gid_cache_destroy(net);
60err_unixgid:
61 ip_map_cache_destroy(net);
62err_ipmap:
63 rpc_proc_exit(net);
64err_proc:
65 return err;
66}
67
68static __net_exit void sunrpc_exit_net(struct net *net)
69{
70 struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
71
72 rpc_pipefs_exit_net(net);
73 unix_gid_cache_destroy(net);
74 ip_map_cache_destroy(net);
75 rpc_proc_exit(net);
76 WARN_ON_ONCE(!list_empty(&sn->all_clients));
77}
78
79static struct pernet_operations sunrpc_net_ops = {
80 .init = sunrpc_init_net,
81 .exit = sunrpc_exit_net,
82 .id = &sunrpc_net_id,
83 .size = sizeof(struct sunrpc_net),
84};
85
86static int __init
87init_sunrpc(void)
88{
89 int err = rpc_init_mempool();
90 if (err)
91 goto out;
92 err = rpcauth_init_module();
93 if (err)
94 goto out2;
95
96 cache_initialize();
97
98 err = register_pernet_subsys(&sunrpc_net_ops);
99 if (err)
100 goto out3;
101
102 err = register_rpc_pipefs();
103 if (err)
104 goto out4;
105
106 sunrpc_debugfs_init();
107#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
108 rpc_register_sysctl();
109#endif
110 svc_init_xprt_sock(); /* svc sock transport */
111 init_socket_xprt(); /* clnt sock transport */
112 return 0;
113
114out4:
115 unregister_pernet_subsys(&sunrpc_net_ops);
116out3:
117 rpcauth_remove_module();
118out2:
119 rpc_destroy_mempool();
120out:
121 return err;
122}
123
124static void __exit
125cleanup_sunrpc(void)
126{
127 rpc_cleanup_clids();
128 rpcauth_remove_module();
129 cleanup_socket_xprt();
130 svc_cleanup_xprt_sock();
131 sunrpc_debugfs_exit();
132 unregister_rpc_pipefs();
133 rpc_destroy_mempool();
134 unregister_pernet_subsys(&sunrpc_net_ops);
135 auth_domain_cleanup();
136#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
137 rpc_unregister_sysctl();
138#endif
139 rcu_barrier(); /* Wait for completion of call_rcu()'s */
140}
141MODULE_LICENSE("GPL");
142fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
143module_exit(cleanup_sunrpc);