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/Linux-v5.15/net/ipv4/
Dsysctl_net_ipv4.c64 write_seqlock_bh(&net->ipv4.ip_local_ports.lock); in set_local_port_range()
65 if (same_parity && !net->ipv4.ip_local_ports.warned) { in set_local_port_range()
66 net->ipv4.ip_local_ports.warned = true; in set_local_port_range()
69 net->ipv4.ip_local_ports.range[0] = range[0]; in set_local_port_range()
70 net->ipv4.ip_local_ports.range[1] = range[1]; in set_local_port_range()
71 write_sequnlock_bh(&net->ipv4.ip_local_ports.lock); in set_local_port_range()
79 container_of(table->data, struct net, ipv4.ip_local_ports.range); in ipv4_local_port_range()
100 (range[0] < net->ipv4.sysctl_ip_prot_sock)) in ipv4_local_port_range()
114 ipv4.sysctl_ip_prot_sock); in ipv4_privileged_ports()
126 pports = net->ipv4.sysctl_ip_prot_sock; in ipv4_privileged_ports()
[all …]
Dfib_notifier.c26 net->ipv4.fib_seq++; in call_fib4_notifiers()
34 return net->ipv4.fib_seq + fib4_rules_seq_read(net); in fib4_seq_read()
60 net->ipv4.fib_seq = 0; in fib4_notifier_init()
65 net->ipv4.notifier_ops = ops; in fib4_notifier_init()
72 fib_notifier_ops_unregister(net->ipv4.notifier_ops); in fib4_notifier_exit()
Dtcp_ipv4.c112 int reuse = sock_net(sk)->ipv4.sysctl_tcp_tw_reuse; in tcp_twsk_unique()
209 struct inet_timewait_death_row *tcp_death_row = &sock_net(sk)->ipv4.tcp_death_row; in tcp_v4_connect()
810 ctl_sk = this_cpu_read(*net->ipv4.tcp_sk); in tcp_v4_send_reset()
908 ctl_sk = this_cpu_read(*net->ipv4.tcp_sk); in tcp_v4_send_ack()
1001 tos = sock_net(sk)->ipv4.sysctl_tcp_reflect_tos ? in tcp_v4_send_synack()
1587 if (sock_net(sk)->ipv4.sysctl_tcp_reflect_tos) in tcp_v4_syn_recv_sock()
3086 .sysctl_wmem_offset = offsetof(struct net, ipv4.sysctl_tcp_wmem),
3087 .sysctl_rmem_offset = offsetof(struct net, ipv4.sysctl_tcp_rmem),
3103 if (net->ipv4.tcp_congestion_control) in tcp_sk_exit()
3104 bpf_module_put(net->ipv4.tcp_congestion_control, in tcp_sk_exit()
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Dfib_rules.c92 err = fib_rules_lookup(net->ipv4.rules_ops, flowi4_to_flowi(flp), 0, &arg); in __fib_lookup()
266 net->ipv4.fib_num_tclassid_users++; in fib4_rule_configure()
271 net->ipv4.fib_rules_require_fldissect++; in fib4_rule_configure()
279 net->ipv4.fib_has_custom_rules = true; in fib4_rule_configure()
298 net->ipv4.fib_num_tclassid_users--; in fib4_rule_delete()
300 net->ipv4.fib_has_custom_rules = true; in fib4_rule_delete()
302 if (net->ipv4.fib_rules_require_fldissect && in fib4_rule_delete()
304 net->ipv4.fib_rules_require_fldissect--; in fib4_rule_delete()
420 net->ipv4.rules_ops = ops; in fib4_rules_init()
421 net->ipv4.fib_has_custom_rules = false; in fib4_rules_init()
[all …]
Dip_fragment.c92 inet_getpeer_v4(net->ipv4.peers, key->saddr, key->vif, 1) : in ip4_frag_init()
216 q = inet_frag_find(net->ipv4.fqdir, &key); in ip_find()
602 table[0].data = &net->ipv4.fqdir->high_thresh; in ip4_frags_ns_ctl_register()
603 table[0].extra1 = &net->ipv4.fqdir->low_thresh; in ip4_frags_ns_ctl_register()
604 table[1].data = &net->ipv4.fqdir->low_thresh; in ip4_frags_ns_ctl_register()
605 table[1].extra2 = &net->ipv4.fqdir->high_thresh; in ip4_frags_ns_ctl_register()
606 table[2].data = &net->ipv4.fqdir->timeout; in ip4_frags_ns_ctl_register()
607 table[3].data = &net->ipv4.fqdir->max_dist; in ip4_frags_ns_ctl_register()
613 net->ipv4.frags_hdr = hdr; in ip4_frags_ns_ctl_register()
627 table = net->ipv4.frags_hdr->ctl_table_arg; in ip4_frags_ns_ctl_unregister()
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Dtcp_fastopen.c19 ctxt = rcu_dereference(net->ipv4.tcp_fastopen_ctx); in tcp_fastopen_init_key_once()
58 ctxt = xchg((__force struct tcp_fastopen_context **)&net->ipv4.tcp_fastopen_ctx, NULL); in tcp_fastopen_ctx_destroy()
91 octx = xchg((__force struct tcp_fastopen_context **)&net->ipv4.tcp_fastopen_ctx, ctx); in tcp_fastopen_reset_cipher()
110 ctx = rcu_dereference(net->ipv4.tcp_fastopen_ctx); in tcp_fastopen_get_cipher()
341 return (sock_net(sk)->ipv4.sysctl_tcp_fastopen & flag) || in tcp_fastopen_no_cookie()
356 int tcp_fastopen = sock_net(sk)->ipv4.sysctl_tcp_fastopen; in tcp_try_fastopen()
498 if (!sock_net(sk)->ipv4.sysctl_tcp_fastopen_blackhole_timeout) in tcp_fastopen_active_disable()
502 WRITE_ONCE(net->ipv4.tfo_active_disable_stamp, jiffies); in tcp_fastopen_active_disable()
508 atomic_inc(&net->ipv4.tfo_active_disable_times); in tcp_fastopen_active_disable()
519 unsigned int tfo_bh_timeout = sock_net(sk)->ipv4.sysctl_tcp_fastopen_blackhole_timeout; in tcp_fastopen_active_should_disable()
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/Linux-v5.15/tools/testing/selftests/bpf/progs/
Dtest_sk_assign.c44 get_tuple(struct __sk_buff *skb, bool *ipv4, bool *tcp) in get_tuple() argument
68 *ipv4 = true; in get_tuple()
77 *ipv4 = false; in get_tuple()
91 handle_udp(struct __sk_buff *skb, struct bpf_sock_tuple *tuple, bool ipv4) in handle_udp() argument
100 tuple_len = ipv4 ? sizeof(tuple->ipv4) : sizeof(tuple->ipv6); in handle_udp()
108 dport = ipv4 ? tuple->ipv4.dport : tuple->ipv6.dport; in handle_udp()
123 handle_tcp(struct __sk_buff *skb, struct bpf_sock_tuple *tuple, bool ipv4) in handle_tcp() argument
132 tuple_len = ipv4 ? sizeof(tuple->ipv4) : sizeof(tuple->ipv6); in handle_tcp()
143 dport = ipv4 ? tuple->ipv4.dport : tuple->ipv6.dport; in handle_tcp()
166 bool ipv4 = false; in bpf_sk_assign_test() local
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Dtest_cls_redirect.c91 offsetofend(struct bpf_sock_tuple, ipv4.dport) -
92 offsetof(struct bpf_sock_tuple, ipv4.sport) - 1,
198 static INLINING bool pkt_skip_ipv4_options(buf_t *buf, const struct iphdr *ipv4) in pkt_skip_ipv4_options() argument
200 if (ipv4->ihl <= 5) { in pkt_skip_ipv4_options()
204 return buf_skip(buf, (ipv4->ihl - 5) * 4); in pkt_skip_ipv4_options()
215 struct iphdr *ipv4 = buf_assign(pkt, sizeof(*ipv4), scratch); in pkt_parse_ipv4() local
216 if (ipv4 == NULL) { in pkt_parse_ipv4()
220 if (ipv4->ihl < 5) { in pkt_parse_ipv4()
224 if (!pkt_skip_ipv4_options(pkt, ipv4)) { in pkt_parse_ipv4()
228 return ipv4; in pkt_parse_ipv4()
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Dconnect4_prog.c154 memset(&tuple.ipv4.saddr, 0, sizeof(tuple.ipv4.saddr)); in connect_v4_prog()
155 memset(&tuple.ipv4.sport, 0, sizeof(tuple.ipv4.sport)); in connect_v4_prog()
157 tuple.ipv4.daddr = bpf_htonl(DST_REWRITE_IP4); in connect_v4_prog()
158 tuple.ipv4.dport = bpf_htons(DST_REWRITE_PORT4); in connect_v4_prog()
173 sk = bpf_sk_lookup_tcp(ctx, &tuple, sizeof(tuple.ipv4), in connect_v4_prog()
176 sk = bpf_sk_lookup_udp(ctx, &tuple, sizeof(tuple.ipv4), in connect_v4_prog()
182 if (sk->src_ip4 != tuple.ipv4.daddr || in connect_v4_prog()
Dtest_sk_lookup_kern.c24 bool *ipv4) in get_tuple() argument
37 *ipv4 = true; in get_tuple()
46 *ipv4 = true; in get_tuple()
65 bool ipv4; in bpf_sk_lookup_test0() local
70 tuple = get_tuple(data, sizeof(*eth), data_end, eth->h_proto, &ipv4); in bpf_sk_lookup_test0()
74 tuple_len = ipv4 ? sizeof(tuple->ipv4) : sizeof(tuple->ipv6); in bpf_sk_lookup_test0()
/Linux-v5.15/drivers/infiniband/hw/irdma/
Dtrace_cm.h15 #define __print_ip_addr(addr, port, ipv4) print_ip_addr(p, addr, port, ipv4) argument
26 __field(bool, ipv4)
30 __entry->ipv4 = cm_info->ipv4;
37 __entry->lport, __entry->ipv4)
48 __field(bool, ipv4)
53 __entry->ipv4 = listener->ipv4;
61 __entry->lport, __entry->ipv4)
71 __field(bool, ipv4)
79 __entry->ipv4 = listener->ipv4;
88 __entry->lport, __entry->ipv4)
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/Linux-v5.15/tools/testing/selftests/net/forwarding/
Dgre_custom_multipath_hash.sh373 sysctl_set net.ipv4.neigh.default.gc_thresh1 1024
374 sysctl_set net.ipv4.neigh.default.gc_thresh2 1024
375 sysctl_set net.ipv4.neigh.default.gc_thresh3 1024
377 sysctl_set net.ipv4.fib_multipath_hash_fields 0x0040
381 sysctl_set net.ipv4.fib_multipath_hash_fields 0x0080
385 sysctl_set net.ipv4.fib_multipath_hash_fields 0x0400
389 sysctl_set net.ipv4.fib_multipath_hash_fields 0x0800
393 sysctl_restore net.ipv4.neigh.default.gc_thresh3
394 sysctl_restore net.ipv4.neigh.default.gc_thresh2
395 sysctl_restore net.ipv4.neigh.default.gc_thresh1
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Drouter_broadcast.sh146 sysctl_set net.ipv4.conf.all.bc_forwarding 0
147 sysctl_set net.ipv4.conf.$rp1.bc_forwarding 0
148 sysctl_set net.ipv4.conf.$rp2.bc_forwarding 0
153 sysctl_set net.ipv4.conf.all.bc_forwarding 1
154 sysctl_set net.ipv4.conf.$rp1.bc_forwarding 1
155 sysctl_set net.ipv4.conf.$rp2.bc_forwarding 1
160 sysctl_restore net.ipv4.conf.$rp2.bc_forwarding
161 sysctl_restore net.ipv4.conf.$rp1.bc_forwarding
162 sysctl_restore net.ipv4.conf.all.bc_forwarding
183 sysctl_set net.ipv4.icmp_echo_ignore_broadcasts 0
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Dcustom_multipath_hash.sh276 sysctl_set net.ipv4.fib_multipath_hash_policy 3
280 sysctl_set net.ipv4.neigh.default.gc_thresh1 1024
281 sysctl_set net.ipv4.neigh.default.gc_thresh2 1024
282 sysctl_set net.ipv4.neigh.default.gc_thresh3 1024
284 sysctl_set net.ipv4.fib_multipath_hash_fields 0x0001
288 sysctl_set net.ipv4.fib_multipath_hash_fields 0x0002
292 sysctl_set net.ipv4.fib_multipath_hash_fields 0x0010
296 sysctl_set net.ipv4.fib_multipath_hash_fields 0x0020
300 sysctl_restore net.ipv4.neigh.default.gc_thresh3
301 sysctl_restore net.ipv4.neigh.default.gc_thresh2
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Dmirror_gre_nh.sh32 sysctl_set net.ipv4.conf.all.rp_filter 0
33 sysctl_set net.ipv4.conf.$h3.rp_filter 0
38 sysctl_set net.ipv4.conf.v$h3.rp_filter 0
66 sysctl_restore net.ipv4.conf.v$h3.rp_filter 0
71 sysctl_restore net.ipv4.conf.$h3.rp_filter
72 sysctl_restore net.ipv4.conf.all.rp_filter
/Linux-v5.15/tools/testing/selftests/netfilter/
Dipvs.sh141 ip netns exec ns1 sysctl -qw net.ipv4.ip_forward=1
147 ip netns exec ns2 sysctl -qw net.ipv4.conf.all.arp_ignore=1
148 ip netns exec ns2 sysctl -qw net.ipv4.conf.all.arp_announce=2
150 ip netns exec ns2 sysctl -qw net.ipv4.conf.all.rp_filter=0
151 ip netns exec ns2 sysctl -qw net.ipv4.conf.veth21.rp_filter=0
160 ip netns exec ns1 sysctl -qw net.ipv4.ip_forward=1
176 ip netns exec ns1 sysctl -qw net.ipv4.ip_forward=0
177 ip netns exec ns1 sysctl -qw net.ipv4.conf.all.send_redirects=0
178 ip netns exec ns1 sysctl -qw net.ipv4.conf.default.send_redirects=0
185 ip netns exec ns2 sysctl -qw net.ipv4.conf.all.arp_ignore=1
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Dnft_nat_zones.sh40 v4gc1=$(sysctl -n net.ipv4.neigh.default.gc_thresh1 2>/dev/null)
41 v4gc2=$(sysctl -n net.ipv4.neigh.default.gc_thresh2 2>/dev/null)
42 v4gc3=$(sysctl -n net.ipv4.neigh.default.gc_thresh3 2>/dev/null)
55 sysctl -q net.ipv4.neigh.default.gc_thresh1=$v4gc1 2>/dev/null
56 sysctl -q net.ipv4.neigh.default.gc_thresh2=$v4gc2 2>/dev/null
57 sysctl -q net.ipv4.neigh.default.gc_thresh3=$v4gc3 2>/dev/null
109 sysctl -q net.ipv4.neigh.default.gc_thresh1=512 2>/dev/null
110 sysctl -q net.ipv4.neigh.default.gc_thresh2=1024 2>/dev/null
111 sysctl -q net.ipv4.neigh.default.gc_thresh3=4096 2>/dev/null
132 echo netns exec "$cl" sysctl -q net.ipv4.tcp_syn_retries=2
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/Linux-v5.15/drivers/net/ethernet/mediatek/
Dmtk_ppe_debugfs.c107 ai.src_port = &entry->ipv4.orig.src_port; in mtk_ppe_debugfs_foe_show()
108 ai.dest_port = &entry->ipv4.orig.dest_port; in mtk_ppe_debugfs_foe_show()
111 ai.src = &entry->ipv4.orig.src_ip; in mtk_ppe_debugfs_foe_show()
112 ai.dest = &entry->ipv4.orig.dest_ip; in mtk_ppe_debugfs_foe_show()
132 ai.src_port = &entry->ipv4.new.src_port; in mtk_ppe_debugfs_foe_show()
133 ai.dest_port = &entry->ipv4.new.dest_port; in mtk_ppe_debugfs_foe_show()
136 ai.src = &entry->ipv4.new.src_ip; in mtk_ppe_debugfs_foe_show()
137 ai.dest = &entry->ipv4.new.dest_ip; in mtk_ppe_debugfs_foe_show()
147 l2 = &entry->ipv4.l2; in mtk_ppe_debugfs_foe_show()
148 ib2 = entry->ipv4.ib2; in mtk_ppe_debugfs_foe_show()
/Linux-v5.15/drivers/infiniband/hw/usnic/
Dusnic_fwd.h115 filter->u.ipv4.flags = FILTER_FIELD_5TUP_PROTO; in usnic_fwd_init_udp_filter()
116 filter->u.ipv4.protocol = PROTO_UDP; in usnic_fwd_init_udp_filter()
119 filter->u.ipv4.flags |= FILTER_FIELD_5TUP_DST_AD; in usnic_fwd_init_udp_filter()
120 filter->u.ipv4.dst_addr = daddr; in usnic_fwd_init_udp_filter()
124 filter->u.ipv4.flags |= FILTER_FIELD_5TUP_DST_PT; in usnic_fwd_init_udp_filter()
125 filter->u.ipv4.dst_port = dport; in usnic_fwd_init_udp_filter()
/Linux-v5.15/tools/testing/selftests/net/
Droute_localnet.sh16 sysctl -w net.ipv4.conf.veth0.route_localnet=1
17 ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.route_localnet=1
40 sysctl -w net.ipv4.conf.veth0.arp_announce=2
41 ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_announce=2
57 sysctl -w net.ipv4.conf.veth0.arp_ignore=3
58 ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_ignore=3
/Linux-v5.15/samples/bpf/
Dtc_l2_redirect.sh10 RP_FILTER=$(< /proc/sys/net/ipv4/conf/all/rp_filter)
48 $IP netns exec ns2 sysctl -q -w net.ipv4.conf.all.rp_filter=0
49 $IP netns exec ns2 sysctl -q -w net.ipv4.conf.ipt2.rp_filter=0
53 $IP netns exec ns2 sysctl -q -w net.ipv4.conf.all.rp_filter=0
54 $IP netns exec ns2 sysctl -q -w net.ipv4.conf.ip6t2.rp_filter=0
65 sysctl -q -w net.ipv4.conf.all.rp_filter=0
78 sysctl -q -w net.ipv4.conf.all.rp_filter=$RP_FILTER
94 sysctl -q -w net.ipv4.conf.ipt.rp_filter=0
95 sysctl -q -w net.ipv4.conf.ipt.forwarding=1
100 sysctl -q -w net.ipv4.conf.ve1.forwarding=1
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/Linux-v5.15/drivers/infiniband/hw/ocrdma/
Docrdma_ah.c83 struct iphdr ipv4; in set_av_attr() local
128 *((__be16 *)&ipv4) = htons((4 << 12) | (5 << 8) | in set_av_attr()
130 ipv4.id = cpu_to_be16(pdid); in set_av_attr()
131 ipv4.frag_off = htons(IP_DF); in set_av_attr()
132 ipv4.tot_len = htons(0); in set_av_attr()
133 ipv4.ttl = ib_grh->hop_limit; in set_av_attr()
134 ipv4.protocol = nxthdr; in set_av_attr()
136 ipv4.saddr = sgid_addr._sockaddr_in.sin_addr.s_addr; in set_av_attr()
138 ipv4.daddr = dgid_addr._sockaddr_in.sin_addr.s_addr; in set_av_attr()
139 memcpy((u8 *)ah->av + eth_sz, &ipv4, sizeof(struct iphdr)); in set_av_attr()
/Linux-v5.15/drivers/infiniband/core/
Duverbs_std_types_flow_action.c120 const struct ib_uverbs_flow_ipv4_filter ipv4 = { in parse_esp_ip() local
139 struct ib_uverbs_flow_ipv4_filter ipv4; in parse_esp_ip() member
149 sizeof(ipv4.flags) != sizeof(ipv4)); in parse_esp_ip()
155 if (len > sizeof(user_val.ipv4) && in parse_esp_ip()
156 !ib_is_buffer_cleared(val_ptr + sizeof(user_val.ipv4), in parse_esp_ip()
157 len - sizeof(user_val.ipv4))) in parse_esp_ip()
160 val_len = min_t(size_t, len, sizeof(user_val.ipv4)); in parse_esp_ip()
161 ret = copy_from_user(&user_val.ipv4, val_ptr, in parse_esp_ip()
166 user_pmask = &ipv4; in parse_esp_ip()
/Linux-v5.15/tools/testing/selftests/bpf/
Dtest_tc_tunnel.sh100 $0 ipv4 ipip none 100
109 $0 ipv4 vxlan eth 2000
116 $0 ipv4 gre $mac 100
122 $0 ipv4 gre $mac 2000
128 $0 ipv4 udp $mac 100
134 $0 ipv4 udp $mac 2000
266 ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.lo.rp_filter=0
273 ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.all.rp_filter=0
276 ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.testtun0.rp_filter=0
/Linux-v5.15/Documentation/security/
DSCTP.rst39 Passes one or more ipv4/ipv6 addresses to the security module for validation
47 @address - One or more ipv4 / ipv6 addresses.
49 ipv4 or ipv6 address using sizeof(struct sockaddr_in) or
56 | SCTP_SOCKOPT_BINDX_ADD | One or more ipv4 / ipv6 addresses |
57 | SCTP_PRIMARY_ADDR | Single ipv4 or ipv6 address |
58 | SCTP_SET_PEER_PRIMARY_ADDR | Single ipv4 or ipv6 address |
65 | SCTP_SOCKOPT_CONNECTX | One or more ipv4 / ipv6 addresses |
66 | SCTP_PARAM_ADD_IP | One or more ipv4 / ipv6 addresses |
67 | SCTP_SENDMSG_CONNECT | Single ipv4 or ipv6 address |
68 | SCTP_PARAM_SET_PRIMARY | Single ipv4 or ipv6 address |
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