/* Copyright (c) 2016 PLUMgrid * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. */ #define KBUILD_MODNAME "foo" #include #include #include #include #include #include #include #include "bpf_helpers.h" struct bpf_map_def SEC("maps") rxcnt = { .type = BPF_MAP_TYPE_PERCPU_ARRAY, .key_size = sizeof(u32), .value_size = sizeof(long), .max_entries = 256, }; static int parse_ipv4(void *data, u64 nh_off, void *data_end) { struct iphdr *iph = data + nh_off; if (iph + 1 > data_end) return 0; return iph->protocol; } static int parse_ipv6(void *data, u64 nh_off, void *data_end) { struct ipv6hdr *ip6h = data + nh_off; if (ip6h + 1 > data_end) return 0; return ip6h->nexthdr; } SEC("xdp1") int xdp_prog1(struct xdp_md *ctx) { void *data_end = (void *)(long)ctx->data_end; void *data = (void *)(long)ctx->data; struct ethhdr *eth = data; int rc = XDP_DROP; long *value; u16 h_proto; u64 nh_off; u32 ipproto; nh_off = sizeof(*eth); if (data + nh_off > data_end) return rc; h_proto = eth->h_proto; if (h_proto == htons(ETH_P_8021Q) || h_proto == htons(ETH_P_8021AD)) { struct vlan_hdr *vhdr; vhdr = data + nh_off; nh_off += sizeof(struct vlan_hdr); if (data + nh_off > data_end) return rc; h_proto = vhdr->h_vlan_encapsulated_proto; } if (h_proto == htons(ETH_P_8021Q) || h_proto == htons(ETH_P_8021AD)) { struct vlan_hdr *vhdr; vhdr = data + nh_off; nh_off += sizeof(struct vlan_hdr); if (data + nh_off > data_end) return rc; h_proto = vhdr->h_vlan_encapsulated_proto; } if (h_proto == htons(ETH_P_IP)) ipproto = parse_ipv4(data, nh_off, data_end); else if (h_proto == htons(ETH_P_IPV6)) ipproto = parse_ipv6(data, nh_off, data_end); else ipproto = 0; value = bpf_map_lookup_elem(&rxcnt, &ipproto); if (value) *value += 1; return rc; } char _license[] SEC("license") = "GPL"; e='14b89f36eed2993670906a3991bca496a5ebf1a6'/>
path: root/include
AgeCommit message (Expand)AuthorFilesLines
2017-02-07net: dsa: Rename and export dev_to_net_device()Florian Fainelli1-0/+1
2017-02-07net: phy: Add 2000base-x, 2500base-x and rxaui modesAndrew Lunn1-0/+9
2017-02-07virtio_net: refactor freeze/restore logic into virtnet reset logicJohn Fastabend1-0/+4
2017-02-06net: dsa: introduce bridge notifierVivien Didelot1-0/+10
2017-02-06net: dsa: add switch notifierVivien Didelot1-0/+7
2017-02-06net-next: treewide use is_vlan_dev() helper function.Parav Pandit1-4/+2
2017-02-06net: remove ndo_neigh_{construct, destroy} from stacked devicesIdo Schimmel1-4/+0
2017-02-06can: rx-offload: Add support for timestamp based irq offloadingMarc Kleine-Budde1-1/+9
2017-02-06can: rx-offload: Add support for HW fifo based irq offloadingDavid Jander1-0/+51
2017-02-05net: remove __napi_complete()Eric Dumazet1-1/+0
2017-02-04net: ipv6: Change notifications for multipath add to RTA_MULTIPATHDavid Ahern1-0/+1
2017-02-04net: ipv6: Allow shorthand delete of all nexthops in multipath routeDavid Ahern1-1/+3
2017-02-03net: remove support for per driver ndo_busy_poll()Eric Dumazet2-5/+0
2017-02-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller11-40/+60
2017-02-03sched: cls_flower: expose priority to offloading netdeviceJiri Pirko1-0/+1
2017-02-03lib: Introduce priority array area managerJiri Pirko1-0/+76
2017-02-03list: introduce list_for_each_entry_from_reverse helperJiri Pirko1-0/+13
2017-02-03trace: rename trace_print_hex_seq arg and add kdocDaniel Borkmann2-3/+3
2017-02-03bridge: uapi: add per vlan tunnel infoRoopa Prabhu3-0/+13
2017-02-03vxlan: support fdb and learning in COLLECT_METADATA modeRoopa Prabhu1-0/+1
2017-02-03ip_tunnels: new IP_TUNNEL_INFO_BRIDGE flag for ip_tunnel_info modeRoopa Prabhu1-0/+1
2017-02-03net/sched: act_ife: Change to use ife moduleYotam Gigi2-10/+1
2017-02-03net: Introduce ife encapsulation moduleYotam Gigi3-0/+70
2017-02-03net/sched: act_ife: Unexport ife_tlv_meta_encodeYotam Gigi1-2/+0
2017-02-03tcp: add tcp_mss_clamp() helperEric Dumazet1-0/+9
2017-02-02net: add LINUX_MIB_PFMEMALLOCDROP counterEric Dumazet1-0/+1
2017-02-02net: phy: marvell: Add support for 88e1545 PHYAndrew Lunn1-0/+1
2017-02-02unix: add ioctl to open a unix socket file with O_PATHAndrey Vagin1-0/+2
2017-02-02net: phy: Marvell: Add mv88e6390 internal PHYAndrew Lunn1-0/+6
2017-02-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller9-30/+40
2017-02-02netfilter: allow logging from non-init namespacesMichal Kubeček1-0/+3
2017-02-02ipvs: free ip_vs_dest structs when refcnt=0David Windsor1-1/+1
2017-02-02netfilter: merge ctinfo into nfct pointer storage areaFlorian Westphal2-17/+15
2017-02-02netfilter: guarantee 8 byte minalign for template addressesFlorian Westphal1-0/+2
2017-02-02netfilter: add and use nf_ct_set helperFlorian Westphal2-2/+9
2017-02-02skbuff: add and use skb_nfct helperFlorian Westphal2-4/+11
2017-02-02netfilter: reduce direct skb->nfct usageFlorian Westphal1-3/+6
2017-02-02netfilter: conntrack: no need to pass ctinfo to error handlerFlorian Westphal1-1/+1