1 // SPDX-License-Identifier: GPL-2.0 2 #include <net/genetlink.h> 3 #include <net/ila.h> 4 #include <net/netns/generic.h> 5 #include <uapi/linux/genetlink.h> 6 #include "ila.h" 7 8 static const struct nla_policy ila_nl_policy[ILA_ATTR_MAX + 1] = { 9 [ILA_ATTR_LOCATOR] = { .type = NLA_U64, }, 10 [ILA_ATTR_LOCATOR_MATCH] = { .type = NLA_U64, }, 11 [ILA_ATTR_IFINDEX] = { .type = NLA_U32, }, 12 [ILA_ATTR_CSUM_MODE] = { .type = NLA_U8, }, 13 [ILA_ATTR_IDENT_TYPE] = { .type = NLA_U8, }, 14 }; 15 16 static const struct genl_ops ila_nl_ops[] = { 17 { 18 .cmd = ILA_CMD_ADD, 19 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 20 .doit = ila_xlat_nl_cmd_add_mapping, 21 .flags = GENL_ADMIN_PERM, 22 }, 23 { 24 .cmd = ILA_CMD_DEL, 25 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 26 .doit = ila_xlat_nl_cmd_del_mapping, 27 .flags = GENL_ADMIN_PERM, 28 }, 29 { 30 .cmd = ILA_CMD_FLUSH, 31 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 32 .doit = ila_xlat_nl_cmd_flush, 33 .flags = GENL_ADMIN_PERM, 34 }, 35 { 36 .cmd = ILA_CMD_GET, 37 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 38 .doit = ila_xlat_nl_cmd_get_mapping, 39 .start = ila_xlat_nl_dump_start, 40 .dumpit = ila_xlat_nl_dump, 41 .done = ila_xlat_nl_dump_done, 42 }, 43 }; 44 45 unsigned int ila_net_id; 46 47 struct genl_family ila_nl_family __ro_after_init = { 48 .hdrsize = 0, 49 .name = ILA_GENL_NAME, 50 .version = ILA_GENL_VERSION, 51 .maxattr = ILA_ATTR_MAX, 52 .policy = ila_nl_policy, 53 .netnsok = true, 54 .parallel_ops = true, 55 .module = THIS_MODULE, 56 .ops = ila_nl_ops, 57 .n_ops = ARRAY_SIZE(ila_nl_ops), 58 .resv_start_op = ILA_CMD_FLUSH + 1, 59 }; 60 61 static __net_init int ila_init_net(struct net *net) 62 { 63 int err; 64 65 err = ila_xlat_init_net(net); 66 if (err) 67 goto ila_xlat_init_fail; 68 69 return 0; 70 71 ila_xlat_init_fail: 72 return err; 73 } 74 75 static __net_exit void ila_exit_net(struct net *net) 76 { 77 ila_xlat_exit_net(net); 78 } 79 80 static struct pernet_operations ila_net_ops = { 81 .init = ila_init_net, 82 .exit = ila_exit_net, 83 .id = &ila_net_id, 84 .size = sizeof(struct ila_net), 85 }; 86 87 static int __init ila_init(void) 88 { 89 int ret; 90 91 ret = register_pernet_device(&ila_net_ops); 92 if (ret) 93 goto register_device_fail; 94 95 ret = genl_register_family(&ila_nl_family); 96 if (ret) 97 goto register_family_fail; 98 99 ret = ila_lwt_init(); 100 if (ret) 101 goto fail_lwt; 102 103 return 0; 104 105 fail_lwt: 106 genl_unregister_family(&ila_nl_family); 107 register_family_fail: 108 unregister_pernet_device(&ila_net_ops); 109 register_device_fail: 110 return ret; 111 } 112 113 static void __exit ila_fini(void) 114 { 115 ila_lwt_fini(); 116 genl_unregister_family(&ila_nl_family); 117 unregister_pernet_device(&ila_net_ops); 118 } 119 120 module_init(ila_init); 121 module_exit(ila_fini); 122 MODULE_AUTHOR("Tom Herbert <tom@herbertland.com>"); 123 MODULE_LICENSE("GPL"); 124 MODULE_DESCRIPTION("IPv6: Identifier Locator Addressing (ILA)"); 125