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Searched refs:tcph (Results 1 – 19 of 19) sorted by relevance

/net/netfilter/
A Dnf_conntrack_seqadj.c76 struct tcphdr *tcph, in nf_ct_sack_block_adjust() argument
127 optend = protoff + tcph->doff * 4; in nf_ct_sack_adjust()
132 tcph = (void *)skb->data + protoff; in nf_ct_sack_adjust()
169 struct tcphdr *tcph; in nf_ct_seq_adjust() local
182 tcph = (void *)skb->data + protoff; in nf_ct_seq_adjust()
190 inet_proto_csum_replace4(&tcph->check, skb, tcph->seq, newseq, false); in nf_ct_seq_adjust()
193 tcph->seq = newseq; in nf_ct_seq_adjust()
195 if (!tcph->ack) in nf_ct_seq_adjust()
205 inet_proto_csum_replace4(&tcph->check, skb, tcph->ack_seq, newack, in nf_ct_seq_adjust()
208 ntohl(tcph->seq), ntohl(newseq), ntohl(tcph->ack_seq), in nf_ct_seq_adjust()
[all …]
A Dnft_exthdr.c172 struct tcphdr *tcph; in nft_tcp_header_pointer() local
178 if (!tcph) in nft_tcp_header_pointer()
196 struct tcphdr *tcph; in nft_exthdr_tcp_eval() local
200 if (!tcph) in nft_exthdr_tcp_eval()
203 opt = (u8 *)tcph; in nft_exthdr_tcp_eval()
239 struct tcphdr *tcph; in nft_exthdr_tcp_set_eval() local
243 if (!tcph) in nft_exthdr_tcp_set_eval()
250 opt = (u8 *)tcph; in nft_exthdr_tcp_set_eval()
319 struct tcphdr *tcph; in nft_exthdr_tcp_strip_eval() local
323 if (!tcph) in nft_exthdr_tcp_strip_eval()
[all …]
A Dxt_TCPOPTSTRIP.c34 struct tcphdr *tcph, _th; in tcpoptstrip_mangle_packet() local
44 tcph = skb_header_pointer(skb, tcphoff, sizeof(_th), &_th); in tcpoptstrip_mangle_packet()
45 if (!tcph) in tcpoptstrip_mangle_packet()
48 tcp_hdrlen = tcph->doff * 4; in tcpoptstrip_mangle_packet()
56 tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff); in tcpoptstrip_mangle_packet()
57 opt = (u8 *)tcph; in tcpoptstrip_mangle_packet()
79 inet_proto_csum_replace2(&tcph->check, skb, htons(o), in tcpoptstrip_mangle_packet()
A Dnf_conntrack_proto_tcp.c278 else if (tcph->syn) return (tcph->ack ? TCP_SYNACK_SET : TCP_SYN_SET); in get_conntrack_index()
321 + (tcph->syn ? 1 : 0) + (tcph->fin ? 1 : 0)); in segment_seq_plus_len()
526 seq = ntohl(tcph->seq); in tcp_in_window()
544 if (tcph->syn) { in tcp_in_window()
546 skb, dataoff, tcph, in tcp_in_window()
548 if (!tcph->ack) in tcp_in_window()
576 } else if (tcph->syn && in tcp_in_window()
589 skb, dataoff, tcph, in tcp_in_window()
596 if (!(tcph->ack)) { in tcp_in_window()
670 if (!tcph->syn) in tcp_in_window()
[all …]
A Dnf_nat_helper.c95 struct tcphdr *tcph; in __nf_nat_mangle_tcp_packet() local
106 tcph = (void *)skb->data + protoff; in __nf_nat_mangle_tcp_packet()
109 mangle_contents(skb, protoff + tcph->doff*4, in __nf_nat_mangle_tcp_packet()
115 tcph, &tcph->check, datalen, oldlen); in __nf_nat_mangle_tcp_packet()
118 nf_ct_seqadj_set(ct, ctinfo, tcph->seq, in __nf_nat_mangle_tcp_packet()
A Dnf_flow_table_ip.c25 struct tcphdr *tcph; in nf_flow_state_check() local
30 tcph = (void *)(skb_network_header(skb) + thoff); in nf_flow_state_check()
31 if (tcph->syn && test_bit(NF_FLOW_CLOSING, &flow->flags)) { in nf_flow_state_check()
36 if ((tcph->fin || tcph->rst) && in nf_flow_state_check()
46 struct tcphdr *tcph; in nf_flow_nat_ip_tcp() local
48 tcph = (void *)(skb_network_header(skb) + thoff); in nf_flow_nat_ip_tcp()
49 inet_proto_csum_replace4(&tcph->check, skb, addr, new_addr, true); in nf_flow_nat_ip_tcp()
484 struct tcphdr *tcph; in nf_flow_nat_ipv6_tcp() local
486 tcph = (void *)(skb_network_header(skb) + thoff); in nf_flow_nat_ipv6_tcp()
487 inet_proto_csum_replace16(&tcph->check, skb, addr->s6_addr32, in nf_flow_nat_ipv6_tcp()
A Dnft_flow_offload.c307 struct tcphdr _tcph, *tcph = NULL; in nft_flow_offload_eval() local
324 tcph = skb_header_pointer(pkt->skb, nft_thoff(pkt), in nft_flow_offload_eval()
326 if (unlikely(!tcph || tcph->fin || tcph->rst || in nft_flow_offload_eval()
368 if (tcph) in nft_flow_offload_eval()
A Dnf_conntrack_pptp.c497 const struct tcphdr *tcph; in conntrack_pptp_help() local
522 tcph = skb_header_pointer(skb, nexthdr_off, sizeof(_tcph), &_tcph); in conntrack_pptp_help()
523 if (!tcph) in conntrack_pptp_help()
526 nexthdr_off += tcph->doff * 4; in conntrack_pptp_help()
527 datalen = tcplen - tcph->doff * 4; in conntrack_pptp_help()
A Dnf_flow_table_core.c603 struct tcphdr *tcph; in nf_flow_nat_port_tcp() local
605 tcph = (void *)(skb_network_header(skb) + thoff); in nf_flow_nat_port_tcp()
606 inet_proto_csum_replace2(&tcph->check, skb, port, new_port, false); in nf_flow_nat_port_tcp()
/net/ipv4/netfilter/
A Dipt_ECN.c47 struct tcphdr _tcph, *tcph; in set_ect_tcp() local
52 if (!tcph) in set_ect_tcp()
56 tcph->ece == einfo->proto.tcp.ece) && in set_ect_tcp()
58 tcph->cwr == einfo->proto.tcp.cwr)) in set_ect_tcp()
61 if (skb_ensure_writable(skb, ip_hdrlen(skb) + sizeof(*tcph))) in set_ect_tcp()
63 tcph = (void *)ip_hdr(skb) + ip_hdrlen(skb); in set_ect_tcp()
65 oldval = ((__be16 *)tcph)[6]; in set_ect_tcp()
67 tcph->ece = einfo->proto.tcp.ece; in set_ect_tcp()
69 tcph->cwr = einfo->proto.tcp.cwr; in set_ect_tcp()
71 inet_proto_csum_replace2(&tcph->check, skb, in set_ect_tcp()
[all …]
A Dnf_reject_ipv4.c197 struct tcphdr *tcph; in nf_reject_ip_tcphdr_put() local
200 tcph = skb_put_zero(nskb, sizeof(struct tcphdr)); in nf_reject_ip_tcphdr_put()
201 tcph->source = oth->dest; in nf_reject_ip_tcphdr_put()
202 tcph->dest = oth->source; in nf_reject_ip_tcphdr_put()
203 tcph->doff = sizeof(struct tcphdr) / 4; in nf_reject_ip_tcphdr_put()
206 tcph->seq = oth->ack_seq; in nf_reject_ip_tcphdr_put()
208 tcph->ack_seq = htonl(ntohl(oth->seq) + oth->syn + oth->fin + in nf_reject_ip_tcphdr_put()
211 tcph->ack = 1; in nf_reject_ip_tcphdr_put()
214 tcph->rst = 1; in nf_reject_ip_tcphdr_put()
215 tcph->check = ~tcp_v4_check(sizeof(struct tcphdr), niph->saddr, in nf_reject_ip_tcphdr_put()
[all …]
/net/netfilter/ipvs/
A Dip_vs_proto_tcp.c112 tcph->check = in tcp_fast_csum_update()
118 tcph->check = in tcp_fast_csum_update()
133 tcph->check = in tcp_partial_csum_update()
139 tcph->check = in tcp_partial_csum_update()
150 struct tcphdr *tcph; in tcp_snat_handler() local
183 tcph->source = cp->vport; in tcp_snat_handler()
199 tcph->check = 0; in tcp_snat_handler()
218 (char*)&(tcph->check) - (char*)tcph); in tcp_snat_handler()
228 struct tcphdr *tcph; in tcp_dnat_handler() local
264 tcph->dest = cp->dport; in tcp_dnat_handler()
[all …]
/net/ipv6/netfilter/
A Dnf_reject_ipv6.c225 struct tcphdr *tcph; in nf_reject_ip6_tcphdr_put() local
228 tcph = skb_put_zero(nskb, sizeof(struct tcphdr)); in nf_reject_ip6_tcphdr_put()
230 tcph->doff = sizeof(struct tcphdr)/4; in nf_reject_ip6_tcphdr_put()
231 tcph->source = oth->dest; in nf_reject_ip6_tcphdr_put()
232 tcph->dest = oth->source; in nf_reject_ip6_tcphdr_put()
235 tcph->seq = oth->ack_seq; in nf_reject_ip6_tcphdr_put()
237 tcph->ack_seq = htonl(ntohl(oth->seq) + oth->syn + oth->fin + in nf_reject_ip6_tcphdr_put()
239 tcph->ack = 1; in nf_reject_ip6_tcphdr_put()
242 tcph->rst = 1; in nf_reject_ip6_tcphdr_put()
245 tcph->check = csum_ipv6_magic(&ipv6_hdr(nskb)->saddr, in nf_reject_ip6_tcphdr_put()
[all …]
/net/sched/
A Dact_csum.c209 struct tcphdr *tcph; in tcf_csum_ipv4_tcp() local
215 tcph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*tcph)); in tcf_csum_ipv4_tcp()
216 if (tcph == NULL) in tcf_csum_ipv4_tcp()
220 tcph->check = 0; in tcf_csum_ipv4_tcp()
221 skb->csum = csum_partial(tcph, ipl - ihl, 0); in tcf_csum_ipv4_tcp()
222 tcph->check = tcp_v4_check(ipl - ihl, in tcf_csum_ipv4_tcp()
233 struct tcphdr *tcph; in tcf_csum_ipv6_tcp() local
239 tcph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*tcph)); in tcf_csum_ipv6_tcp()
240 if (tcph == NULL) in tcf_csum_ipv6_tcp()
244 tcph->check = 0; in tcf_csum_ipv6_tcp()
[all …]
A Dact_nat.c181 struct tcphdr *tcph; in tcf_nat_act() local
183 if (!pskb_may_pull(skb, ihl + sizeof(*tcph) + noff) || in tcf_nat_act()
184 skb_try_make_writable(skb, ihl + sizeof(*tcph) + noff)) in tcf_nat_act()
187 tcph = (void *)(skb_network_header(skb) + ihl); in tcf_nat_act()
188 inet_proto_csum_replace4(&tcph->check, skb, addr, new_addr, in tcf_nat_act()
A Dsch_cake.c953 const struct tcphdr *tcph; in cake_get_tcphdr() local
993 if (!tcph || tcph->doff < 5) in cake_get_tcphdr()
1005 const u8 *ptr = (const u8 *)(tcph + 1); in cake_get_tcpopt()
1131 const u8 *ptr = (const u8 *)(tcph + 1); in cake_tcph_may_drop()
1142 if (((tcp_flag_word(tcph) & in cake_tcph_may_drop()
1206 const struct tcphdr *tcph, *tcph_check; in cake_ack_filter() local
1222 if (!tcph) in cake_ack_filter()
1230 if ((tcp_flag_word(tcph) & in cake_ack_filter()
1250 tcph_check->source != tcph->source || in cake_ack_filter()
1251 tcph_check->dest != tcph->dest) in cake_ack_filter()
[all …]
A Dact_ct.c513 struct tcphdr **tcph) in tcf_ct_flow_table_fill_tuple_ipv4() argument
556 *tcph = (void *)(skb_network_header(skb) + thoff); in tcf_ct_flow_table_fill_tuple_ipv4()
586 struct tcphdr **tcph) in tcf_ct_flow_table_fill_tuple_ipv6() argument
625 *tcph = (void *)(skb_network_header(skb) + thoff); in tcf_ct_flow_table_fill_tuple_ipv6()
660 struct tcphdr *tcph = NULL; in tcf_ct_flow_table_lookup() local
668 if (!tcf_ct_flow_table_fill_tuple_ipv4(skb, &tuple, &tcph)) in tcf_ct_flow_table_lookup()
672 if (!tcf_ct_flow_table_fill_tuple_ipv6(skb, &tuple, &tcph)) in tcf_ct_flow_table_lookup()
702 if (tcph && (unlikely(tcph->fin || tcph->rst))) { in tcf_ct_flow_table_lookup()
/net/core/
A Dtso.c28 struct tcphdr *tcph = (struct tcphdr *)hdr; in tso_build_hdr() local
30 put_unaligned_be32(tso->tcp_seq, &tcph->seq); in tso_build_hdr()
34 tcph->psh = 0; in tso_build_hdr()
35 tcph->fin = 0; in tso_build_hdr()
36 tcph->rst = 0; in tso_build_hdr()
/net/ipv4/
A Droute.c3189 struct tcphdr *tcph; in inet_rtm_getroute_build_skb() local
3191 tcph = skb_put_zero(skb, sizeof(struct tcphdr)); in inet_rtm_getroute_build_skb()
3192 tcph->source = sport; in inet_rtm_getroute_build_skb()
3193 tcph->dest = dport; in inet_rtm_getroute_build_skb()
3194 tcph->doff = sizeof(struct tcphdr) / 4; in inet_rtm_getroute_build_skb()
3195 tcph->rst = 1; in inet_rtm_getroute_build_skb()
3196 tcph->check = ~tcp_v4_check(sizeof(struct tcphdr), in inet_rtm_getroute_build_skb()

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