| /net/netfilter/ |
| D | nf_conntrack_seqadj.c | 75 struct tcphdr *tcph, in nf_ct_sack_block_adjust() argument
105 inet_proto_csum_replace4(&tcph->check, skb, in nf_ct_sack_block_adjust()
107 inet_proto_csum_replace4(&tcph->check, skb, in nf_ct_sack_block_adjust()
118 struct tcphdr *tcph, in nf_ct_sack_adjust() argument
126 optend = protoff + tcph->doff * 4; in nf_ct_sack_adjust()
152 nf_ct_sack_block_adjust(skb, tcph, optoff + 2, in nf_ct_sack_adjust()
167 struct tcphdr *tcph; in nf_ct_seq_adjust() local
177 if (!skb_make_writable(skb, protoff + sizeof(*tcph))) in nf_ct_seq_adjust()
180 tcph = (void *)skb->data + protoff; in nf_ct_seq_adjust()
182 if (after(ntohl(tcph->seq), this_way->correction_pos)) in nf_ct_seq_adjust()
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| D | xt_TCPMSS.c | 86 struct tcphdr *tcph; in tcpmss_mangle_packet() local
104 tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff); in tcpmss_mangle_packet()
105 tcp_hdrlen = tcph->doff * 4; in tcpmss_mangle_packet()
124 opt = (u_int8_t *)tcph; in tcpmss_mangle_packet()
141 inet_proto_csum_replace2(&tcph->check, skb, in tcpmss_mangle_packet()
167 tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff); in tcpmss_mangle_packet()
184 opt = (u_int8_t *)tcph + sizeof(struct tcphdr); in tcpmss_mangle_packet()
187 inet_proto_csum_replace2(&tcph->check, skb, in tcpmss_mangle_packet()
194 inet_proto_csum_replace4(&tcph->check, skb, 0, *((__be32 *)opt), false); in tcpmss_mangle_packet()
196 oldval = ((__be16 *)tcph)[6]; in tcpmss_mangle_packet()
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| D | nf_nat_helper.c | 102 struct tcphdr *tcph; in __nf_nat_mangle_tcp_packet() local
115 tcph = (void *)skb->data + protoff; in __nf_nat_mangle_tcp_packet()
118 mangle_contents(skb, protoff + tcph->doff*4, in __nf_nat_mangle_tcp_packet()
124 l3proto->csum_recalc(skb, IPPROTO_TCP, tcph, &tcph->check, in __nf_nat_mangle_tcp_packet()
128 nf_ct_seqadj_set(ct, ctinfo, tcph->seq, in __nf_nat_mangle_tcp_packet()
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| D | xt_TCPOPTSTRIP.c | 38 struct tcphdr *tcph; in tcpoptstrip_mangle_packet() local
54 tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff); in tcpoptstrip_mangle_packet()
55 tcp_hdrlen = tcph->doff * 4; in tcpoptstrip_mangle_packet()
60 opt = (u_int8_t *)tcph; in tcpoptstrip_mangle_packet()
82 inet_proto_csum_replace2(&tcph->check, skb, htons(o), in tcpoptstrip_mangle_packet()
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| D | nf_conntrack_proto_tcp.c | 319 static unsigned int get_conntrack_index(const struct tcphdr *tcph) in get_conntrack_index() argument
321 if (tcph->rst) return TCP_RST_SET; in get_conntrack_index()
322 else if (tcph->syn) return (tcph->ack ? TCP_SYNACK_SET : TCP_SYN_SET); in get_conntrack_index()
323 else if (tcph->fin) return TCP_FIN_SET; in get_conntrack_index()
324 else if (tcph->ack) return TCP_ACK_SET; in get_conntrack_index()
360 const struct tcphdr *tcph) in segment_seq_plus_len() argument
364 return (seq + len - dataoff - tcph->doff*4 in segment_seq_plus_len()
365 + (tcph->syn ? 1 : 0) + (tcph->fin ? 1 : 0)); in segment_seq_plus_len()
379 const struct tcphdr *tcph, in tcp_options() argument
384 int length = (tcph->doff*4) - sizeof(struct tcphdr); in tcp_options()
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| D | xt_TPROXY.c | 116 struct tcphdr *tcph; in nf_tproxy_get_sock_v4() local
122 tcph = hp; in nf_tproxy_get_sock_v4()
125 __tcp_hdrlen(tcph), in nf_tproxy_get_sock_v4()
187 struct tcphdr *tcph; in nf_tproxy_get_sock_v6() local
193 tcph = hp; in nf_tproxy_get_sock_v6()
195 thoff + __tcp_hdrlen(tcph), in nf_tproxy_get_sock_v6()
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| D | nf_conntrack_pptp.c | 514 const struct tcphdr *tcph; in conntrack_pptp_help() local
531 tcph = skb_header_pointer(skb, nexthdr_off, sizeof(_tcph), &_tcph); in conntrack_pptp_help()
532 BUG_ON(!tcph); in conntrack_pptp_help()
533 nexthdr_off += tcph->doff * 4; in conntrack_pptp_help()
534 datalen = tcplen - tcph->doff * 4; in conntrack_pptp_help()
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| /net/ipv4/netfilter/ |
| D | ipt_ECN.c | 50 struct tcphdr _tcph, *tcph; in set_ect_tcp() local
54 tcph = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph); in set_ect_tcp()
55 if (!tcph) in set_ect_tcp()
59 tcph->ece == einfo->proto.tcp.ece) && in set_ect_tcp()
61 tcph->cwr == einfo->proto.tcp.cwr)) in set_ect_tcp()
64 if (!skb_make_writable(skb, ip_hdrlen(skb) + sizeof(*tcph))) in set_ect_tcp()
66 tcph = (void *)ip_hdr(skb) + ip_hdrlen(skb); in set_ect_tcp()
68 oldval = ((__be16 *)tcph)[6]; in set_ect_tcp()
70 tcph->ece = einfo->proto.tcp.ece; in set_ect_tcp()
72 tcph->cwr = einfo->proto.tcp.cwr; in set_ect_tcp()
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| D | nf_reject_ipv4.c | 76 struct tcphdr *tcph; in nf_reject_ip_tcphdr_put() local
79 tcph = (struct tcphdr *)skb_put(nskb, sizeof(struct tcphdr)); in nf_reject_ip_tcphdr_put()
80 memset(tcph, 0, sizeof(*tcph)); in nf_reject_ip_tcphdr_put()
81 tcph->source = oth->dest; in nf_reject_ip_tcphdr_put()
82 tcph->dest = oth->source; in nf_reject_ip_tcphdr_put()
83 tcph->doff = sizeof(struct tcphdr) / 4; in nf_reject_ip_tcphdr_put()
86 tcph->seq = oth->ack_seq; in nf_reject_ip_tcphdr_put()
88 tcph->ack_seq = htonl(ntohl(oth->seq) + oth->syn + oth->fin + in nf_reject_ip_tcphdr_put()
91 tcph->ack = 1; in nf_reject_ip_tcphdr_put()
94 tcph->rst = 1; in nf_reject_ip_tcphdr_put()
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| /net/ipv6/netfilter/ |
| D | nf_reject_ipv6.c | 94 struct tcphdr *tcph; in nf_reject_ip6_tcphdr_put() local
98 tcph = (struct tcphdr *)skb_put(nskb, sizeof(struct tcphdr)); in nf_reject_ip6_tcphdr_put()
100 tcph->doff = sizeof(struct tcphdr)/4; in nf_reject_ip6_tcphdr_put()
101 tcph->source = oth->dest; in nf_reject_ip6_tcphdr_put()
102 tcph->dest = oth->source; in nf_reject_ip6_tcphdr_put()
106 tcph->seq = oth->ack_seq; in nf_reject_ip6_tcphdr_put()
107 tcph->ack_seq = 0; in nf_reject_ip6_tcphdr_put()
110 tcph->ack_seq = htonl(ntohl(oth->seq) + oth->syn + oth->fin + in nf_reject_ip6_tcphdr_put()
112 tcph->seq = 0; in nf_reject_ip6_tcphdr_put()
116 ((u_int8_t *)tcph)[13] = 0; in nf_reject_ip6_tcphdr_put()
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| /net/netfilter/ipvs/ |
| D | ip_vs_proto_tcp.c | 109 tcp_fast_csum_update(int af, struct tcphdr *tcph, in tcp_fast_csum_update() argument
116 tcph->check = in tcp_fast_csum_update()
119 ~csum_unfold(tcph->check)))); in tcp_fast_csum_update()
122 tcph->check = in tcp_fast_csum_update()
125 ~csum_unfold(tcph->check)))); in tcp_fast_csum_update()
130 tcp_partial_csum_update(int af, struct tcphdr *tcph, in tcp_partial_csum_update() argument
137 tcph->check = in tcp_partial_csum_update()
140 csum_unfold(tcph->check)))); in tcp_partial_csum_update()
143 tcph->check = in tcp_partial_csum_update()
146 csum_unfold(tcph->check)))); in tcp_partial_csum_update()
[all …]
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| /net/core/ |
| D | tso.c | 18 struct tcphdr *tcph; in tso_build_hdr() local
34 tcph = (struct tcphdr *)(hdr + skb_transport_offset(skb)); in tso_build_hdr()
35 put_unaligned_be32(tso->tcp_seq, &tcph->seq); in tso_build_hdr()
39 tcph->psh = 0; in tso_build_hdr()
40 tcph->fin = 0; in tso_build_hdr()
41 tcph->rst = 0; in tso_build_hdr()
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| /net/sched/ |
| D | act_csum.c | 180 struct tcphdr *tcph; in tcf_csum_ipv4_tcp() local
186 tcph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*tcph)); in tcf_csum_ipv4_tcp()
187 if (tcph == NULL) in tcf_csum_ipv4_tcp()
191 tcph->check = 0; in tcf_csum_ipv4_tcp()
192 skb->csum = csum_partial(tcph, ipl - ihl, 0); in tcf_csum_ipv4_tcp()
193 tcph->check = tcp_v4_check(ipl - ihl, in tcf_csum_ipv4_tcp()
204 struct tcphdr *tcph; in tcf_csum_ipv6_tcp() local
210 tcph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*tcph)); in tcf_csum_ipv6_tcp()
211 if (tcph == NULL) in tcf_csum_ipv6_tcp()
215 tcph->check = 0; in tcf_csum_ipv6_tcp()
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| D | act_nat.c | 158 struct tcphdr *tcph; in tcf_nat() local
160 if (!pskb_may_pull(skb, ihl + sizeof(*tcph) + noff) || in tcf_nat()
161 skb_try_make_writable(skb, ihl + sizeof(*tcph) + noff)) in tcf_nat()
164 tcph = (void *)(skb_network_header(skb) + ihl); in tcf_nat()
165 inet_proto_csum_replace4(&tcph->check, skb, addr, new_addr, in tcf_nat()
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