| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Generic parts |
| 3 | * Linux ethernet bridge |
| 4 | * |
| 5 | * Authors: |
| 6 | * Lennert Buytenhek <buytenh@gnu.org> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * as published by the Free Software Foundation; either version |
| 11 | * 2 of the License, or (at your option) any later version. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/netdevice.h> |
| 17 | #include <linux/etherdevice.h> |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/llc.h> |
| 20 | #include <net/llc.h> |
| 21 | #include <net/stp.h> |
| 22 | |
| 23 | #include "br_private.h" |
| 24 | |
| 25 | static const struct stp_proto br_stp_proto = { |
| 26 | .rcv = br_stp_rcv, |
| 27 | }; |
| 28 | |
| 29 | static struct pernet_operations br_net_ops = { |
| 30 | .exit = br_net_exit, |
| 31 | }; |
| 32 | |
| 33 | static int __init br_init(void) |
| 34 | { |
| 35 | int err; |
| 36 | |
| 37 | err = stp_proto_register(&br_stp_proto); |
| 38 | if (err < 0) { |
| 39 | pr_err("bridge: can't register sap for STP\n"); |
| 40 | return err; |
| 41 | } |
| 42 | |
| 43 | err = br_fdb_init(); |
| 44 | if (err) |
| 45 | goto err_out; |
| 46 | |
| 47 | err = register_pernet_subsys(&br_net_ops); |
| 48 | if (err) |
| 49 | goto err_out1; |
| 50 | |
| 51 | err = br_netfilter_init(); |
| 52 | if (err) |
| 53 | goto err_out2; |
| 54 | |
| 55 | err = register_netdevice_notifier(&br_device_notifier); |
| 56 | if (err) |
| 57 | goto err_out3; |
| 58 | |
| 59 | err = br_netlink_init(); |
| 60 | if (err) |
| 61 | goto err_out4; |
| 62 | |
| 63 | brioctl_set(br_ioctl_deviceless_stub); |
| 64 | |
| 65 | #if IS_ENABLED(CONFIG_ATM_LANE) |
| 66 | br_fdb_test_addr_hook = br_fdb_test_addr; |
| 67 | #endif |
| 68 | |
| 69 | return 0; |
| 70 | err_out4: |
| 71 | unregister_netdevice_notifier(&br_device_notifier); |
| 72 | err_out3: |
| 73 | br_netfilter_fini(); |
| 74 | err_out2: |
| 75 | unregister_pernet_subsys(&br_net_ops); |
| 76 | err_out1: |
| 77 | br_fdb_fini(); |
| 78 | err_out: |
| 79 | stp_proto_unregister(&br_stp_proto); |
| 80 | return err; |
| 81 | } |
| 82 | |
| 83 | static void __exit br_deinit(void) |
| 84 | { |
| 85 | stp_proto_unregister(&br_stp_proto); |
| 86 | |
| 87 | br_netlink_fini(); |
| 88 | unregister_netdevice_notifier(&br_device_notifier); |
| 89 | brioctl_set(NULL); |
| 90 | |
| 91 | unregister_pernet_subsys(&br_net_ops); |
| 92 | |
| 93 | rcu_barrier(); /* Wait for completion of call_rcu()'s */ |
| 94 | |
| 95 | br_netfilter_fini(); |
| 96 | #if IS_ENABLED(CONFIG_ATM_LANE) |
| 97 | br_fdb_test_addr_hook = NULL; |
| 98 | #endif |
| 99 | |
| 100 | br_fdb_fini(); |
| 101 | } |
| 102 | |
| 103 | module_init(br_init) |
| 104 | module_exit(br_deinit) |
| 105 | MODULE_LICENSE("GPL"); |
| 106 | MODULE_VERSION(BR_VERSION); |
| 107 | MODULE_ALIAS_RTNL_LINK("bridge"); |