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Diffstat (limited to 'samples/sockmap/sockmap_kern.c')
-rw-r--r--samples/sockmap/sockmap_kern.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/samples/sockmap/sockmap_kern.c b/samples/sockmap/sockmap_kern.c
index 52b0053274f4..75edb2f151d4 100644
--- a/samples/sockmap/sockmap_kern.c
+++ b/samples/sockmap/sockmap_kern.c
@@ -43,6 +43,20 @@ struct bpf_map_def SEC("maps") sock_map = {
.max_entries = 20,
};
+struct bpf_map_def SEC("maps") sock_map_txmsg = {
+ .type = BPF_MAP_TYPE_SOCKMAP,
+ .key_size = sizeof(int),
+ .value_size = sizeof(int),
+ .max_entries = 20,
+};
+
+struct bpf_map_def SEC("maps") sock_map_redir = {
+ .type = BPF_MAP_TYPE_SOCKMAP,
+ .key_size = sizeof(int),
+ .value_size = sizeof(int),
+ .max_entries = 1,
+};
+
SEC("sk_skb1")
int bpf_prog1(struct __sk_buff *skb)
{
@@ -105,4 +119,42 @@ int bpf_sockmap(struct bpf_sock_ops *skops)
return 0;
}
+
+SEC("sk_msg1")
+int bpf_prog4(struct sk_msg_md *msg)
+{
+ return SK_PASS;
+}
+
+SEC("sk_msg2")
+int bpf_prog5(struct sk_msg_md *msg)
+{
+ void *data_end = (void *)(long) msg->data_end;
+ void *data = (void *)(long) msg->data;
+
+ bpf_printk("sk_msg2: data length %i\n", (__u32)data_end - (__u32)data);
+ return SK_PASS;
+}
+
+SEC("sk_msg3")
+int bpf_prog6(struct sk_msg_md *msg)
+{
+ void *data_end = (void *)(long) msg->data_end;
+ void *data = (void *)(long) msg->data;
+ int ret = 0;
+
+ return bpf_msg_redirect_map(msg, &sock_map_redir, ret, 0);
+}
+
+SEC("sk_msg4")
+int bpf_prog7(struct sk_msg_md *msg)
+{
+ void *data_end = (void *)(long) msg->data_end;
+ void *data = (void *)(long) msg->data;
+ int ret = 0;
+
+ bpf_printk("sk_msg3: redirect(%iB)\n", (__u32)data_end - (__u32)data);
+ return bpf_msg_redirect_map(msg, &sock_map_redir, ret, 0);
+}
+
char _license[] SEC("license") = "GPL";