diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/filter.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index be3098fb65e4..247450a5e387 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -47,6 +47,7 @@ #include <linux/if_vlan.h> #include <linux/bpf.h> #include <net/sch_generic.h> +#include <net/cls_cgroup.h> /** * sk_filter - run a packet through a socket filter @@ -1424,6 +1425,18 @@ const struct bpf_func_proto bpf_clone_redirect_proto = { .arg3_type = ARG_ANYTHING, }; +static u64 bpf_get_cgroup_classid(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5) +{ + return task_get_classid((struct sk_buff *) (unsigned long) r1); +} + +static const struct bpf_func_proto bpf_get_cgroup_classid_proto = { + .func = bpf_get_cgroup_classid, + .gpl_only = false, + .ret_type = RET_INTEGER, + .arg1_type = ARG_PTR_TO_CTX, +}; + static const struct bpf_func_proto * sk_filter_func_proto(enum bpf_func_id func_id) { @@ -1461,6 +1474,8 @@ tc_cls_act_func_proto(enum bpf_func_id func_id) return &bpf_l4_csum_replace_proto; case BPF_FUNC_clone_redirect: return &bpf_clone_redirect_proto; + case BPF_FUNC_get_cgroup_classid: + return &bpf_get_cgroup_classid_proto; default: return sk_filter_func_proto(func_id); } |