| /openbmc/linux/samples/bpf/ |
| H A D | sockex2_kern.c | 46 static inline int ip_is_fragment(struct __sk_buff *ctx, __u64 nhoff) in ip_is_fragment() argument
48 return load_half(ctx, nhoff + offsetof(struct iphdr, frag_off)) in ip_is_fragment()
62 static inline __u64 parse_ip(struct __sk_buff *skb, __u64 nhoff, __u64 *ip_proto, in parse_ip() argument
67 if (unlikely(ip_is_fragment(skb, nhoff))) in parse_ip()
70 *ip_proto = load_byte(skb, nhoff + offsetof(struct iphdr, protocol)); in parse_ip()
73 flow->src = load_word(skb, nhoff + offsetof(struct iphdr, saddr)); in parse_ip()
74 flow->dst = load_word(skb, nhoff + offsetof(struct iphdr, daddr)); in parse_ip()
77 verlen = load_byte(skb, nhoff + 0/*offsetof(struct iphdr, ihl)*/); in parse_ip()
79 nhoff += 20; in parse_ip()
81 nhoff += (verlen & 0xF) << 2; in parse_ip()
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| H A D | sockex3_kern.c | 42 static inline int ip_is_fragment(struct __sk_buff *ctx, __u64 nhoff) in ip_is_fragment() argument
44 return load_half(ctx, nhoff + offsetof(struct iphdr, frag_off)) in ip_is_fragment()
109 __u32 nhoff = skb->cb[0]; in parse_ip_proto() local
120 nhoff + offsetof(struct gre_hdr, flags)); in parse_ip_proto()
122 nhoff + offsetof(struct gre_hdr, proto)); in parse_ip_proto()
127 nhoff += 4; in parse_ip_proto()
129 nhoff += 4; in parse_ip_proto()
131 nhoff += 4; in parse_ip_proto()
133 nhoff += 4; in parse_ip_proto()
135 skb->cb[0] = nhoff; in parse_ip_proto()
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| H A D | parse_ldabs.c | 21 static inline int ip_is_fragment(struct __sk_buff *ctx, __u64 nhoff) in ip_is_fragment() argument
23 return load_half(ctx, nhoff + offsetof(struct iphdr, frag_off)) in ip_is_fragment()
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| /openbmc/linux/net/netfilter/ |
| H A D | xt_HMARK.c | 132 hmark_set_tuple_ports(const struct sk_buff *skb, unsigned int nhoff, in hmark_set_tuple_ports() argument
141 nhoff += protoff; in hmark_set_tuple_ports()
142 if (skb_copy_bits(skb, nhoff, &t->uports, sizeof(t->uports)) < 0) in hmark_set_tuple_ports()
170 unsigned int nhoff = 0; in hmark_pkt_set_htuple_ipv6() local
175 nexthdr = ipv6_find_hdr(skb, &nhoff, -1, &fragoff, &flag); in hmark_pkt_set_htuple_ipv6()
182 if (get_inner6_hdr(skb, &nhoff)) { in hmark_pkt_set_htuple_ipv6()
183 ip6 = skb_header_pointer(skb, nhoff, sizeof(_ip6), &_ip6); in hmark_pkt_set_htuple_ipv6()
188 nexthdr = ipv6_find_hdr(skb, &nhoff, -1, &fragoff, &flag); in hmark_pkt_set_htuple_ipv6()
206 hmark_set_tuple_ports(skb, nhoff, t, info); in hmark_pkt_set_htuple_ipv6()
231 static int get_inner_hdr(const struct sk_buff *skb, int iphsz, int *nhoff) in get_inner_hdr() argument
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| H A D | nft_inner.c | 56 u32 nhoff, thoff; in nft_inner_parse_l2l3() local
113 nhoff = off; in nft_inner_parse_l2l3()
119 iph = skb_header_pointer(pkt->skb, nhoff, sizeof(_iph), &_iph); in nft_inner_parse_l2l3()
126 ctx->inner_nhoff = nhoff; in nft_inner_parse_l2l3()
129 thoff = nhoff + (iph->ihl * 4); in nft_inner_parse_l2l3()
143 ip6h = skb_header_pointer(pkt->skb, nhoff, sizeof(_ip6h), &_ip6h); in nft_inner_parse_l2l3()
150 ctx->inner_nhoff = nhoff; in nft_inner_parse_l2l3()
153 thoff = nhoff; in nft_inner_parse_l2l3()
159 thoff = nhoff + sizeof(_ip6h); in nft_inner_parse_l2l3()
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| H A D | nf_conntrack_core.c | 268 unsigned int nhoff, in nf_ct_get_tuple() argument
284 nhoff += offsetof(struct iphdr, saddr); in nf_ct_get_tuple()
288 nhoff += offsetof(struct ipv6hdr, saddr); in nf_ct_get_tuple()
295 ap = skb_header_pointer(skb, nhoff, size, _addrs); in nf_ct_get_tuple()
344 static int ipv4_get_l4proto(const struct sk_buff *skb, unsigned int nhoff, in ipv4_get_l4proto() argument
351 iph = skb_header_pointer(skb, nhoff, sizeof(_iph), &_iph); in ipv4_get_l4proto()
361 dataoff = nhoff + (iph->ihl << 2); in ipv4_get_l4proto()
367 nhoff, iph->ihl << 2, skb->len); in ipv4_get_l4proto()
374 static int ipv6_get_l4proto(const struct sk_buff *skb, unsigned int nhoff, in ipv6_get_l4proto() argument
378 unsigned int extoff = nhoff + sizeof(struct ipv6hdr); in ipv6_get_l4proto()
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| /openbmc/linux/net/core/ |
| H A D | flow_dissector.c | 211 int nhoff, int hlen) in __skb_flow_dissect_ah() argument
219 hdr = __skb_header_pointer(skb, nhoff, sizeof(_hdr), data, hlen, &_hdr); in __skb_flow_dissect_ah()
233 int nhoff, int hlen) in __skb_flow_dissect_esp() argument
241 hdr = __skb_header_pointer(skb, nhoff, sizeof(_hdr), data, hlen, &_hdr); in __skb_flow_dissect_esp()
255 int nhoff, int hlen) in __skb_flow_dissect_l2tpv3() argument
265 hdr = __skb_header_pointer(skb, nhoff, sizeof(_hdr), data, hlen, &_hdr); in __skb_flow_dissect_l2tpv3()
493 void *target_container, const void *data, int nhoff, in __skb_flow_dissect_mpls() argument
507 hdr = __skb_header_pointer(skb, nhoff, sizeof(_hdr), data, in __skb_flow_dissect_mpls()
552 int nhoff, int hlen) in __skb_flow_dissect_arp() argument
567 arp = __skb_header_pointer(skb, nhoff, sizeof(_arp), data, in __skb_flow_dissect_arp()
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| /openbmc/linux/net/ipv6/ |
| H A D | ip6_offload.c | 121 int nhoff; in ipv6_gso_segment() local
128 nhoff = skb_network_header(skb) - skb_mac_header(skb); in ipv6_gso_segment()
156 skb->network_header = skb_mac_header(skb) + nhoff - skb->head; in ipv6_gso_segment()
165 ipv6h = (struct ipv6hdr *)(skb_mac_header(skb) + nhoff); in ipv6_gso_segment()
171 payload_len = skb->len - nhoff - sizeof(*ipv6h); in ipv6_gso_segment()
353 INDIRECT_CALLABLE_SCOPE int ipv6_gro_complete(struct sk_buff *skb, int nhoff) in ipv6_gro_complete() argument
362 skb_set_inner_network_header(skb, nhoff); in ipv6_gro_complete()
365 payload_len = skb->len - nhoff - sizeof(*iph); in ipv6_gro_complete()
377 iph = (struct ipv6hdr *)(skb->data + nhoff); in ipv6_gro_complete()
390 iph = (struct ipv6hdr *)(skb->data + nhoff); in ipv6_gro_complete()
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| H A D | udp_offload.c | 165 INDIRECT_CALLABLE_SCOPE int udp6_gro_complete(struct sk_buff *skb, int nhoff) in udp6_gro_complete() argument
169 struct udphdr *uh = (struct udphdr *)(skb->data + nhoff); in udp6_gro_complete()
173 uh->len = htons(skb->len - nhoff); in udp6_gro_complete()
184 uh->check = ~udp_v6_check(skb->len - nhoff, &ipv6h->saddr, in udp6_gro_complete()
187 return udp_gro_complete(skb, nhoff, udp6_lib_lookup_skb); in udp6_gro_complete()
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| H A D | reassembly.c | 107 struct frag_hdr *fhdr, int nhoff, in ip6_frag_queue() argument
214 fq->nhoffset = nhoff; in ip6_frag_queue()
260 unsigned int nhoff; in ip6_frag_reasm() local
283 nhoff = fq->nhoffset; in ip6_frag_reasm()
284 skb_network_header(skb)[nhoff] = skb_transport_header(skb)[0]; in ip6_frag_reasm()
298 IP6CB(skb)->nhoff = nhoff; in ip6_frag_reasm()
358 IP6CB(skb)->nhoff = (u8 *)fhdr - skb_network_header(skb); in ipv6_frag_rcv()
388 ret = ip6_frag_queue(fq, skb, fhdr, IP6CB(skb)->nhoff, in ipv6_frag_rcv()
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| H A D | ip6_input.c | 262 IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr); in ip6_rcv_core()
368 unsigned int nhoff; in ip6_protocol_deliver_rcu() local
378 nhoff = IP6CB(skb)->nhoff; in ip6_protocol_deliver_rcu()
382 nexthdr = skb_network_header(skb)[nhoff]; in ip6_protocol_deliver_rcu()
461 ICMPV6_UNK_NEXTHDR, nhoff); in ip6_protocol_deliver_rcu()
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| H A D | esp6_offload.c | 59 int nhoff; in esp6_gro_receive() local
95 nhoff = esp6_nexthdr_esp_offset(ipv6_hdr(skb), offset); in esp6_gro_receive()
96 if (!nhoff) in esp6_gro_receive()
99 IP6CB(skb)->nhoff = nhoff; in esp6_gro_receive()
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| H A D | xfrm6_input.c | 46 skb_network_header(skb)[IP6CB(skb)->nhoff] = in xfrm6_transport_finish()
172 return xfrm6_rcv_spi(skb, skb_network_header(skb)[IP6CB(skb)->nhoff], in xfrm6_rcv_tnl()
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| H A D | exthdrs.c | 328 opt->nhoff = dstbuf; in ipv6_destopt_rcv()
330 opt->nhoff = opt->dst1; in ipv6_destopt_rcv()
422 opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb); in ipv6_srh_rcv()
532 opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb); in ipv6_rpl_srh_rcv()
714 opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb); in ipv6_rthdr_rcv()
1063 opt->nhoff = sizeof(struct ipv6hdr); in ipv6_parse_hopopts()
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| /openbmc/linux/net/ipv6/ila/ |
| H A D | ila_common.c | 77 size_t nhoff = sizeof(struct ipv6hdr); in ila_csum_adjust_transport() local
83 if (likely(pskb_may_pull(skb, nhoff + sizeof(struct tcphdr)))) { in ila_csum_adjust_transport()
85 (skb_network_header(skb) + nhoff); in ila_csum_adjust_transport()
93 if (likely(pskb_may_pull(skb, nhoff + sizeof(struct udphdr)))) { in ila_csum_adjust_transport()
95 (skb_network_header(skb) + nhoff); in ila_csum_adjust_transport()
108 nhoff + sizeof(struct icmp6hdr)))) { in ila_csum_adjust_transport()
110 (skb_network_header(skb) + nhoff); in ila_csum_adjust_transport()
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| /openbmc/linux/tools/testing/selftests/bpf/prog_tests/ |
| H A D | flow_dissector.c | 32 got.nhoff, expected.nhoff, \
124 .nhoff = ETH_HLEN,
145 .nhoff = ETH_HLEN,
168 .nhoff = ETH_HLEN + VLAN_HLEN,
191 .nhoff = ETH_HLEN + VLAN_HLEN * 2,
216 .nhoff = ETH_HLEN,
242 .nhoff = ETH_HLEN,
265 .nhoff = ETH_HLEN,
291 .nhoff = ETH_HLEN,
314 .nhoff = ETH_HLEN,
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| /openbmc/linux/Documentation/bpf/ |
| H A D | prog_flow_dissector.rst | 26 * ``nhoff`` - initial offset of the networking header
27 * ``thoff`` - initial offset of the transport header, initialized to nhoff
32 bpf_flow_keys`` fields. Input arguments ``nhoff/thoff/n_proto`` should be
54 skb->data + flow_keys->nhoff point to the first byte of L3_HEADER
55 flow_keys->thoff = nhoff
71 skb->data + flow_keys->nhoff point the to first byte of TCI
72 flow_keys->thoff = nhoff
90 skb->data + flow_keys->nhoff point the to first byte of L3_HEADER
91 flow_keys->thoff = nhoff
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| /openbmc/linux/net/bridge/netfilter/ |
| H A D | nf_conntrack_bridge.c | 207 int nhoff, len; in nf_ct_br_ip_check() local
209 nhoff = skb_network_offset(skb); in nf_ct_br_ip_check()
216 if (skb->len < nhoff + len || in nf_ct_br_ip_check()
226 int nhoff, len; in nf_ct_br_ipv6_check() local
228 nhoff = skb_network_offset(skb); in nf_ct_br_ipv6_check()
233 len = ntohs(hdr->payload_len) + sizeof(struct ipv6hdr) + nhoff; in nf_ct_br_ipv6_check()
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| /openbmc/linux/net/ipv4/ |
| H A D | gre_offload.c | 236 static int gre_gro_complete(struct sk_buff *skb, int nhoff) in gre_gro_complete() argument
238 struct gre_base_hdr *greh = (struct gre_base_hdr *)(skb->data + nhoff); in gre_gro_complete()
256 err = ptype->callbacks.gro_complete(skb, nhoff + grehlen); in gre_gro_complete()
258 skb_set_inner_mac_header(skb, nhoff + grehlen); in gre_gro_complete()
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| H A D | udp_offload.c | 714 int udp_gro_complete(struct sk_buff *skb, int nhoff, in udp_gro_complete() argument
717 __be16 newlen = htons(skb->len - nhoff); in udp_gro_complete()
718 struct udphdr *uh = (struct udphdr *)(skb->data + nhoff); in udp_gro_complete()
740 nhoff + sizeof(struct udphdr)); in udp_gro_complete()
752 INDIRECT_CALLABLE_SCOPE int udp4_gro_complete(struct sk_buff *skb, int nhoff) in udp4_gro_complete() argument
756 struct udphdr *uh = (struct udphdr *)(skb->data + nhoff); in udp4_gro_complete()
760 uh->len = htons(skb->len - nhoff); in udp4_gro_complete()
771 uh->check = ~udp_v4_check(skb->len - nhoff, iph->saddr, in udp4_gro_complete()
774 return udp_gro_complete(skb, nhoff, udp4_lib_lookup_skb); in udp4_gro_complete()
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| H A D | af_inet.c | 1376 int nhoff; in inet_gso_segment() local
1381 nhoff = skb_network_header(skb) - skb_mac_header(skb); in inet_gso_segment()
1420 skb->network_header = skb_mac_header(skb) + nhoff - skb->head; in inet_gso_segment()
1430 iph = (struct iphdr *)(skb_mac_header(skb) + nhoff); in inet_gso_segment()
1435 offset += skb->len - nhoff - ihl; in inet_gso_segment()
1436 tot_len = skb->len - nhoff; in inet_gso_segment()
1448 tot_len = skb->len - nhoff; in inet_gso_segment()
1452 tot_len = skb->len - nhoff; in inet_gso_segment()
1644 int inet_gro_complete(struct sk_buff *skb, int nhoff) in inet_gro_complete() argument
1646 struct iphdr *iph = (struct iphdr *)(skb->data + nhoff); in inet_gro_complete()
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| H A D | fou_core.c | 269 int nhoff) in fou_gro_complete() argument
291 err = ops->callbacks.gro_complete(skb, nhoff); in fou_gro_complete()
293 skb_set_inner_mac_header(skb, nhoff); in fou_gro_complete()
467 static int gue_gro_complete(struct sock *sk, struct sk_buff *skb, int nhoff) in gue_gro_complete() argument
469 struct guehdr *guehdr = (struct guehdr *)(skb->data + nhoff); in gue_gro_complete()
502 err = ops->callbacks.gro_complete(skb, nhoff + guehlen); in gue_gro_complete()
504 skb_set_inner_mac_header(skb, nhoff + guehlen); in gue_gro_complete()
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| /openbmc/linux/net/ipv6/netfilter/ |
| H A D | nf_conntrack_reasm.c | 171 const struct frag_hdr *fhdr, int nhoff) in nf_ct_frag6_queue() argument
282 fq->nhoffset = nhoff; in nf_ct_frag6_queue()
447 int fhoff, nhoff, ret; in nf_ct_frag6_gather() local
459 if (find_prev_fhdr(skb, &prevhdr, &nhoff, &fhoff) < 0) in nf_ct_frag6_gather()
486 ret = nf_ct_frag6_queue(fq, skb, fhdr, nhoff); in nf_ct_frag6_gather()
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| /openbmc/linux/net/ethernet/ |
| H A D | eth.c | 446 int eth_gro_complete(struct sk_buff *skb, int nhoff) in eth_gro_complete() argument
448 struct ethhdr *eh = (struct ethhdr *)(skb->data + nhoff); in eth_gro_complete()
454 skb_set_inner_mac_header(skb, nhoff); in eth_gro_complete()
460 skb, nhoff + sizeof(*eh)); in eth_gro_complete()
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| /openbmc/linux/net/sched/ |
| H A D | act_ipt.c | 237 unsigned int nhoff, len; in tcf_ipt_act_check() local
242 nhoff = skb_network_offset(skb); in tcf_ipt_act_check()
248 if (skb->len < nhoff + len || len < (iph->ihl * 4u)) in tcf_ipt_act_check()
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