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_LICENSE("GPL"); 152 fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */ 153 module_exit(cleanup_sunrpc); 154