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% Ubuntu clang version 20.1.2 (0ubuntu1) xdp.c /media/luci/VOID/Repos/xsio/src/udp/xdp xsks_map type unsigned int key_size value_size max_entries map_flags bpf_map_def port_filter bpf_map_lookup_elem bpf_redirect_map long unsigned long long __u64 _license char __ARRAY_SIZE_TYPE__ XDP_ABORTED XDP_DROP XDP_PASS XDP_TX XDP_REDIRECT xdp_action IPPROTO_IP IPPROTO_ICMP IPPROTO_IGMP IPPROTO_IPIP IPPROTO_TCP IPPROTO_EGP IPPROTO_PUP IPPROTO_UDP IPPROTO_IDP IPPROTO_TP IPPROTO_DCCP IPPROTO_IPV6 IPPROTO_RSVP IPPROTO_GRE IPPROTO_ESP IPPROTO_AH IPPROTO_MTP IPPROTO_BEETPH IPPROTO_ENCAP IPPROTO_PIM IPPROTO_COMP IPPROTO_L2TP IPPROTO_SCTP IPPROTO_UDPLITE IPPROTO_MPLS IPPROTO_ETHERNET IPPROTO_AGGFRAG IPPROTO_RAW IPPROTO_SMC IPPROTO_MPTCP IPPROTO_MAX unsigned short __u16 __be16 xdp_udp_filter int dport qid __u32 ctx data data_end data_meta ingress_ifindex rx_queue_index egress_ifindex xdp_md eth h_dest unsigned char h_source h_proto ethhdr ip ihl __u8 version tos tot_len id frag_off ttl protocol check __sum16 saddr __be32 daddr addrs iphdr udp source dest len udphdr accept $ �� � � � ( @ 3 ` ? � I R ^ e j s @ } ` � � � � �
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V j s y unsigned int bpf_map_def type key_size value_size max_entries map_flags xsks_map port_filter xdp_md data data_end data_meta ingress_ifindex rx_queue_index egress_ifindex __u32 ctx int xdp_udp_filter xdp_sock /media/luci/VOID/Repos/xsio/src/udp/xdp/xdp.c int xdp_udp_filter(struct xdp_md *ctx) { void *data_end = (void *)(long)ctx->data_end; void *data = (void *)(long)ctx->data; if ((void *)(eth + 1) > data_end) if (eth->h_proto != __constant_htons(ETH_P_IP)) if (ip->protocol != IPPROTO_UDP) struct udphdr *udp = (void *)ip + ip->ihl * 4; if ((void *)(udp + 1) > data_end) __u16 dport = udp->dest; __u8 *accept = bpf_map_lookup_elem(&port_filter, &dport); if (!accept) __u32 qid = ctx->rx_queue_index; if (bpf_map_lookup_elem(&xsks_map, &qid)) return bpf_redirect_map(&xsks_map, qid, 0); } char __ARRAY_SIZE_TYPE__ _license .maps license �� � � �
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