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 .doit = ila_xlat_nl_cmd_add_mapping, 20 .policy = ila_nl_policy, 21 .flags = GENL_ADMIN_PERM, 22 }, 23 { 24 .cmd = ILA_CMD_DEL, 25 .doit = ila_xlat_nl_cmd_del_mapping, 26 .policy = ila_nl_policy, 27 .flags = GENL_ADMIN_PERM, 28 }, 29 { 30 .cmd = ILA_CMD_FLUSH, 31 .doit = ila_xlat_nl_cmd_flush, 32 .policy = ila_nl_policy, 33 .flags = GENL_ADMIN_PERM, 34 }, 35 { 36 .cmd = ILA_CMD_GET, 37 .doit = ila_xlat_nl_cmd_get_mapping, 38 .start = ila_xlat_nl_dump_start, 39 .dumpit = ila_xlat_nl_dump, 40 .done = ila_xlat_nl_dump_done, 41 .policy = ila_nl_policy, 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 .netnsok = true, 53 .parallel_ops = true, 54 .module = THIS_MODULE, 55 .ops = ila_nl_ops, 56 .n_ops = ARRAY_SIZE(ila_nl_ops), 57 }; 58 59 static __net_init int ila_init_net(struct net *net) 60 { 61 int err; 62 63 err = ila_xlat_init_net(net); 64 if (err) 65 goto ila_xlat_init_fail; 66 67 return 0; 68 69 ila_xlat_init_fail: 70 return err; 71 } 72 73 static __net_exit void ila_exit_net(struct net *net) 74 { 75 ila_xlat_exit_net(net); 76 } 77 78 static struct pernet_operations ila_net_ops = { 79 .init = ila_init_net, 80 .exit = ila_exit_net, 81 .id = &ila_net_id, 82 .size = sizeof(struct ila_net), 83 }; 84 85 static int __init ila_init(void) 86 { 87 int ret; 88 89 ret = register_pernet_device(&ila_net_ops); 90 if (ret) 91 goto register_device_fail; 92 93 ret = genl_register_family(&ila_nl_family); 94 if (ret) 95 goto register_family_fail; 96 97 ret = ila_lwt_init(); 98 if (ret) 99 goto fail_lwt; 100 101 return 0; 102 103 fail_lwt: 104 genl_unregister_family(&ila_nl_family); 105 register_family_fail: 106 unregister_pernet_device(&ila_net_ops); 107 register_device_fail: 108 return ret; 109 } 110 111 static void __exit ila_fini(void) 112 { 113 ila_lwt_fini(); 114 genl_unregister_family(&ila_nl_family); 115 unregister_pernet_device(&ila_net_ops); 116 } 117 118 module_init(ila_init); 119 module_exit(ila_fini); 120 MODULE_AUTHOR("Tom Herbert <tom@herbertland.com>"); 121 MODULE_LICENSE("GPL"); 122