Home
last modified time | relevance | path

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

/net/netfilter/
Dnf_conntrack_seqadj.c76 struct tcphdr *tcph, in nf_ct_sack_block_adjust() argument
106 inet_proto_csum_replace4(&tcph->check, skb, in nf_ct_sack_block_adjust()
108 inet_proto_csum_replace4(&tcph->check, skb, in nf_ct_sack_block_adjust()
122 struct tcphdr *tcph = (void *)skb->data + protoff; in nf_ct_sack_adjust() local
127 optend = protoff + tcph->doff * 4; in nf_ct_sack_adjust()
132 tcph = (void *)skb->data + protoff; in nf_ct_sack_adjust()
154 nf_ct_sack_block_adjust(skb, tcph, optoff + 2, in nf_ct_sack_adjust()
169 struct tcphdr *tcph; in nf_ct_seq_adjust() local
179 if (skb_ensure_writable(skb, protoff + sizeof(*tcph))) in nf_ct_seq_adjust()
182 tcph = (void *)skb->data + protoff; in nf_ct_seq_adjust()
[all …]
Dnft_exthdr.c163 struct tcphdr *tcph; in nft_tcp_header_pointer() local
168 tcph = skb_header_pointer(pkt->skb, pkt->xt.thoff, sizeof(*tcph), buffer); in nft_tcp_header_pointer()
169 if (!tcph) in nft_tcp_header_pointer()
172 *tcphdr_len = __tcp_hdrlen(tcph); in nft_tcp_header_pointer()
173 if (*tcphdr_len < sizeof(*tcph) || *tcphdr_len > len) in nft_tcp_header_pointer()
187 struct tcphdr *tcph; in nft_exthdr_tcp_eval() local
190 tcph = nft_tcp_header_pointer(pkt, sizeof(buff), buff, &tcphdr_len); in nft_exthdr_tcp_eval()
191 if (!tcph) in nft_exthdr_tcp_eval()
194 opt = (u8 *)tcph; in nft_exthdr_tcp_eval()
195 for (i = sizeof(*tcph); i < tcphdr_len - 1; i += optl) { in nft_exthdr_tcp_eval()
[all …]
Dxt_TCPMSS.c78 struct tcphdr *tcph; in tcpmss_mangle_packet() local
96 tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff); in tcpmss_mangle_packet()
97 tcp_hdrlen = tcph->doff * 4; in tcpmss_mangle_packet()
116 opt = (u_int8_t *)tcph; in tcpmss_mangle_packet()
133 inet_proto_csum_replace2(&tcph->check, skb, in tcpmss_mangle_packet()
159 tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff); in tcpmss_mangle_packet()
176 opt = (u_int8_t *)tcph + sizeof(struct tcphdr); in tcpmss_mangle_packet()
179 inet_proto_csum_replace2(&tcph->check, skb, in tcpmss_mangle_packet()
186 inet_proto_csum_replace4(&tcph->check, skb, 0, *((__be32 *)opt), false); in tcpmss_mangle_packet()
188 oldval = ((__be16 *)tcph)[6]; in tcpmss_mangle_packet()
[all …]
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()
Dnf_flow_table_ip.c22 struct tcphdr *tcph; in nf_flow_state_check() local
27 if (!pskb_may_pull(skb, thoff + sizeof(*tcph))) in nf_flow_state_check()
30 tcph = (void *)(skb_network_header(skb) + thoff); in nf_flow_state_check()
31 if (unlikely(tcph->fin || tcph->rst)) { in nf_flow_state_check()
42 struct tcphdr *tcph; in nf_flow_nat_ip_tcp() local
44 if (!pskb_may_pull(skb, thoff + sizeof(*tcph)) || in nf_flow_nat_ip_tcp()
45 skb_try_make_writable(skb, thoff + sizeof(*tcph))) in nf_flow_nat_ip_tcp()
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()
308 struct tcphdr *tcph; in nf_flow_nat_ipv6_tcp() local
[all …]
Dnf_conntrack_proto_tcp.c283 static unsigned int get_conntrack_index(const struct tcphdr *tcph) in get_conntrack_index() argument
285 if (tcph->rst) return TCP_RST_SET; in get_conntrack_index()
286 else if (tcph->syn) return (tcph->ack ? TCP_SYNACK_SET : TCP_SYN_SET); in get_conntrack_index()
287 else if (tcph->fin) return TCP_FIN_SET; in get_conntrack_index()
288 else if (tcph->ack) return TCP_ACK_SET; in get_conntrack_index()
324 const struct tcphdr *tcph) in segment_seq_plus_len() argument
328 return (seq + len - dataoff - tcph->doff*4 in segment_seq_plus_len()
329 + (tcph->syn ? 1 : 0) + (tcph->fin ? 1 : 0)); in segment_seq_plus_len()
343 const struct tcphdr *tcph, in tcp_options() argument
348 int length = (tcph->doff*4) - sizeof(struct tcphdr); in tcp_options()
[all …]
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()
Dnft_flow_offload.c76 struct tcphdr _tcph, *tcph = NULL; in nft_flow_offload_eval() local
93 tcph = skb_header_pointer(pkt->skb, pkt->xt.thoff, in nft_flow_offload_eval()
95 if (unlikely(!tcph || tcph->fin || tcph->rst)) in nft_flow_offload_eval()
122 if (tcph) { in nft_flow_offload_eval()
Dnf_flow_table_core.c350 struct tcphdr *tcph; in nf_flow_nat_port_tcp() local
352 if (!pskb_may_pull(skb, thoff + sizeof(*tcph)) || in nf_flow_nat_port_tcp()
353 skb_try_make_writable(skb, thoff + sizeof(*tcph))) in nf_flow_nat_port_tcp()
356 tcph = (void *)(skb_network_header(skb) + thoff); in nf_flow_nat_port_tcp()
357 inet_proto_csum_replace2(&tcph->check, skb, port, new_port, true); in nf_flow_nat_port_tcp()
Dnf_conntrack_pptp.c513 const struct tcphdr *tcph; in conntrack_pptp_help() local
538 tcph = skb_header_pointer(skb, nexthdr_off, sizeof(_tcph), &_tcph); in conntrack_pptp_help()
539 BUG_ON(!tcph); in conntrack_pptp_help()
540 nexthdr_off += tcph->doff * 4; in conntrack_pptp_help()
541 datalen = tcplen - tcph->doff * 4; in conntrack_pptp_help()
/net/ipv4/netfilter/
Dipt_ECN.c47 struct tcphdr _tcph, *tcph; in set_ect_tcp() local
51 tcph = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph); in set_ect_tcp()
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()
[all …]
Dnf_reject_ipv4.c73 struct tcphdr *tcph; in nf_reject_ip_tcphdr_put() local
76 tcph = skb_put_zero(nskb, sizeof(struct tcphdr)); in nf_reject_ip_tcphdr_put()
77 tcph->source = oth->dest; in nf_reject_ip_tcphdr_put()
78 tcph->dest = oth->source; in nf_reject_ip_tcphdr_put()
79 tcph->doff = sizeof(struct tcphdr) / 4; in nf_reject_ip_tcphdr_put()
82 tcph->seq = oth->ack_seq; in nf_reject_ip_tcphdr_put()
84 tcph->ack_seq = htonl(ntohl(oth->seq) + oth->syn + oth->fin + in nf_reject_ip_tcphdr_put()
87 tcph->ack = 1; in nf_reject_ip_tcphdr_put()
90 tcph->rst = 1; in nf_reject_ip_tcphdr_put()
91 tcph->check = ~tcp_v4_check(sizeof(struct tcphdr), niph->saddr, in nf_reject_ip_tcphdr_put()
[all …]
/net/ipv6/netfilter/
Dnf_reject_ipv6.c91 struct tcphdr *tcph; in nf_reject_ip6_tcphdr_put() local
95 tcph = skb_put(nskb, sizeof(struct tcphdr)); in nf_reject_ip6_tcphdr_put()
97 tcph->doff = sizeof(struct tcphdr)/4; in nf_reject_ip6_tcphdr_put()
98 tcph->source = oth->dest; in nf_reject_ip6_tcphdr_put()
99 tcph->dest = oth->source; in nf_reject_ip6_tcphdr_put()
103 tcph->seq = oth->ack_seq; in nf_reject_ip6_tcphdr_put()
104 tcph->ack_seq = 0; in nf_reject_ip6_tcphdr_put()
107 tcph->ack_seq = htonl(ntohl(oth->seq) + oth->syn + oth->fin + in nf_reject_ip6_tcphdr_put()
109 tcph->seq = 0; in nf_reject_ip6_tcphdr_put()
113 ((u_int8_t *)tcph)[13] = 0; in nf_reject_ip6_tcphdr_put()
[all …]
/net/netfilter/ipvs/
Dip_vs_proto_tcp.c105 tcp_fast_csum_update(int af, struct tcphdr *tcph, in tcp_fast_csum_update() argument
112 tcph->check = in tcp_fast_csum_update()
115 ~csum_unfold(tcph->check)))); in tcp_fast_csum_update()
118 tcph->check = in tcp_fast_csum_update()
121 ~csum_unfold(tcph->check)))); in tcp_fast_csum_update()
126 tcp_partial_csum_update(int af, struct tcphdr *tcph, in tcp_partial_csum_update() argument
133 tcph->check = in tcp_partial_csum_update()
136 csum_unfold(tcph->check)))); in tcp_partial_csum_update()
139 tcph->check = in tcp_partial_csum_update()
142 csum_unfold(tcph->check)))); in tcp_partial_csum_update()
[all …]
/net/core/
Dtso.c19 struct tcphdr *tcph; in tso_build_hdr() local
35 tcph = (struct tcphdr *)(hdr + skb_transport_offset(skb)); in tso_build_hdr()
36 put_unaligned_be32(tso->tcp_seq, &tcph->seq); in tso_build_hdr()
40 tcph->psh = 0; in tso_build_hdr()
41 tcph->fin = 0; in tso_build_hdr()
42 tcph->rst = 0; in tso_build_hdr()
/net/sched/
Dact_csum.c210 struct tcphdr *tcph; in tcf_csum_ipv4_tcp() local
216 tcph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*tcph)); in tcf_csum_ipv4_tcp()
217 if (tcph == NULL) in tcf_csum_ipv4_tcp()
221 tcph->check = 0; in tcf_csum_ipv4_tcp()
222 skb->csum = csum_partial(tcph, ipl - ihl, 0); in tcf_csum_ipv4_tcp()
223 tcph->check = tcp_v4_check(ipl - ihl, in tcf_csum_ipv4_tcp()
234 struct tcphdr *tcph; in tcf_csum_ipv6_tcp() local
240 tcph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*tcph)); in tcf_csum_ipv6_tcp()
241 if (tcph == NULL) in tcf_csum_ipv6_tcp()
245 tcph->check = 0; in tcf_csum_ipv6_tcp()
[all …]
Dact_nat.c172 struct tcphdr *tcph; in tcf_nat_act() local
174 if (!pskb_may_pull(skb, ihl + sizeof(*tcph) + noff) || in tcf_nat_act()
175 skb_try_make_writable(skb, ihl + sizeof(*tcph) + noff)) in tcf_nat_act()
178 tcph = (void *)(skb_network_header(skb) + ihl); in tcf_nat_act()
179 inet_proto_csum_replace4(&tcph->check, skb, addr, new_addr, in tcf_nat_act()
Dsch_cake.c870 const struct tcphdr *tcph; in cake_get_tcphdr() local
909 tcph = skb_header_pointer(skb, offset, sizeof(_tcph), &_tcph); in cake_get_tcphdr()
910 if (!tcph) in cake_get_tcphdr()
914 min(__tcp_hdrlen(tcph), bufsize), buf); in cake_get_tcphdr()
917 static const void *cake_get_tcpopt(const struct tcphdr *tcph, in cake_get_tcpopt() argument
921 int length = __tcp_hdrlen(tcph) - sizeof(struct tcphdr); in cake_get_tcpopt()
922 const u8 *ptr = (const u8 *)(tcph + 1); in cake_get_tcpopt()
1027 static void cake_tcph_get_tstamp(const struct tcphdr *tcph, in cake_tcph_get_tstamp() argument
1033 ptr = cake_get_tcpopt(tcph, TCPOPT_TIMESTAMP, &opsize); in cake_tcph_get_tstamp()
1041 static bool cake_tcph_may_drop(const struct tcphdr *tcph, in cake_tcph_may_drop() argument
[all …]
/net/ipv4/
Droute.c2985 struct tcphdr *tcph; in inet_rtm_getroute_build_skb() local
2987 tcph = skb_put_zero(skb, sizeof(struct tcphdr)); in inet_rtm_getroute_build_skb()
2988 tcph->source = sport; in inet_rtm_getroute_build_skb()
2989 tcph->dest = dport; in inet_rtm_getroute_build_skb()
2990 tcph->doff = sizeof(struct tcphdr) / 4; in inet_rtm_getroute_build_skb()
2991 tcph->rst = 1; in inet_rtm_getroute_build_skb()
2992 tcph->check = ~tcp_v4_check(sizeof(struct tcphdr), in inet_rtm_getroute_build_skb()