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
30 unsigned int sunrpc_net_id;
31 EXPORT_SYMBOL_GPL(sunrpc_net_id);
32
33 static __net_init int sunrpc_init_net(struct net *net)
34 {
35 int err;
36 struct sunrpc_net *sn = net_generic(net, 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(&sn->all_clients);
55 spin_lock_init(&sn->rpc_client_lock);
56 spin_lock_init(&sn->rpcb_clnt_lock);
57 return 0;
58
59 err_pipefs:
60 unix_gid_cache_destroy(net);
61 err_unixgid:
62 ip_map_cache_destroy(net);
63 err_ipmap:
64 rpc_proc_exit(net);
65 err_proc:
66 return err;
67 }
68
69 static __net_exit void sunrpc_exit_net(struct net *net)
70 {
71 struct sunrpc_net *sn = net_generic(net, 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
80 static 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
87 static int __init
88 init_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
119 out5:
120 unregister_rpc_pipefs();
121 out4:
122 unregister_pernet_subsys(&sunrpc_net_ops);
123 out3:
124 rpcauth_remove_module();
125 out2:
126 rpc_destroy_mempool();
127 out:
128 return err;
129 }
130
131 static void __exit
132 cleanup_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 }
151 MODULE_DESCRIPTION("Sun RPC core");
152 MODULE_LICENSE("GPL");
153 fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
154 module_exit(cleanup_sunrpc);
155
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