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 29 unsigned int sunrpc_net_id; 30 EXPORT_SYMBOL_GPL(sunrpc_net_id); 31 32 static __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 58 err_pipefs: 59 unix_gid_cache_destroy(net); 60 err_unixgid: 61 ip_map_cache_destroy(net); 62 err_ipmap: 63 rpc_proc_exit(net); 64 err_proc: 65 return err; 66 } 67 68 static __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 79 static 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 86 static int __init 87 init_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; 113 114 out4: 115 unregister_pernet_subsys(&sunrpc_net_ops); 116 out3: 117 rpcauth_remove_module(); 118 out2: 119 rpc_destroy_mempool(); 120 out: 121 return err; 122 } 123 124 static void __exit 125 cleanup_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 } 141 MODULE_LICENSE("GPL"); 142 fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */ 143 module_exit(cleanup_sunrpc); 144