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

source code of linux/net/ipv6/ila/ila_main.c