diff options
Diffstat (limited to 'net/ipv6/route.c')
| -rw-r--r-- | net/ipv6/route.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 4292653af533..fcf0d5c87d09 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -6421,6 +6421,35 @@ void __init ip6_route_init_special_entries(void) #endif } +#if IS_BUILTIN(CONFIG_IPV6) +#if defined(CONFIG_BPF_SYSCALL) && defined(CONFIG_PROC_FS) +DEFINE_BPF_ITER_FUNC(ipv6_route, struct bpf_iter_meta *meta, struct fib6_info *rt) + +static const struct bpf_iter_reg ipv6_route_reg_info = { + .target = "ipv6_route", + .seq_ops = &ipv6_route_seq_ops, + .init_seq_private = bpf_iter_init_seq_net, + .fini_seq_private = bpf_iter_fini_seq_net, + .seq_priv_size = sizeof(struct ipv6_route_iter), + .ctx_arg_info_size = 1, + .ctx_arg_info = { + { offsetof(struct bpf_iter__ipv6_route, rt), + PTR_TO_BTF_ID_OR_NULL }, + }, +}; + +static int __init bpf_iter_register(void) +{ + return bpf_iter_reg_target(&ipv6_route_reg_info); +} + +static void bpf_iter_unregister(void) +{ + bpf_iter_unreg_target(&ipv6_route_reg_info); +} +#endif +#endif + int __init ip6_route_init(void) { int ret; @@ -6483,6 +6512,14 @@ int __init ip6_route_init(void) if (ret) goto out_register_late_subsys; +#if IS_BUILTIN(CONFIG_IPV6) +#if defined(CONFIG_BPF_SYSCALL) && defined(CONFIG_PROC_FS) + ret = bpf_iter_register(); + if (ret) + goto out_register_late_subsys; +#endif +#endif + for_each_possible_cpu(cpu) { struct uncached_list *ul = per_cpu_ptr(&rt6_uncached_list, cpu); @@ -6515,6 +6552,11 @@ out_kmem_cache: void ip6_route_cleanup(void) { +#if IS_BUILTIN(CONFIG_IPV6) +#if defined(CONFIG_BPF_SYSCALL) && defined(CONFIG_PROC_FS) + bpf_iter_unregister(); +#endif +#endif unregister_netdevice_notifier(&ip6_route_dev_notifier); unregister_pernet_subsys(&ip6_route_net_late_ops); fib6_rules_cleanup(); |