Lines Matching +full:flow +full:- +full:level
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * interface as the means of communication with the user level.
32 #include <net/flow.h>
74 return ip_hdr(skb)->ihl * 4;
90 *ipcm = (struct ipcm_cookie) { .tos = -1 };
97 .tos = READ_ONCE(inet->tos),
100 sockcm_init(&ipcm->sockc, &inet->sk);
102 ipcm->oif = READ_ONCE(inet->sk.sk_bound_dev_if);
103 ipcm->addr = inet->inet_saddr;
104 ipcm->protocol = inet->inet_num;
107 #define IPCB(skb) ((struct inet_skb_parm*)((skb)->cb))
108 #define PKTINFO_SKB_CB(skb) ((struct in_pktinfo *)((skb)->cb))
114 if (skb && ipv4_l3mdev_skb(IPCB(skb)->flags))
115 return IPCB(skb)->iif;
125 It is user level problem, what it will make with them.
126 I have no idea, how it will masquearde or NAT them (it is joke, joke :-)),
190 struct sk_buff *skb = iter->frag;
192 iter->frag = skb->next;
247 return __ip_make_skb(sk, fl4, &sk->sk_write_queue, &inet_sk(sk)->cork.base);
255 if (sock_flag(&inet->sk, SOCK_LOCALROUTE) ||
256 msg->msg_flags & MSG_DONTROUTE ||
257 (ipc->opt && ipc->opt->opt.is_strictroute))
274 /* -1 if not needed */
284 return (arg->flags & IP_REPLY_ARG_NOSRCCHECK) ? FLOWI_FLAG_ANYSRC : 0;
294 #define IP_INC_STATS(net, field) SNMP_INC_STATS64((net)->mib.ip_statistics, field)
295 #define __IP_INC_STATS(net, field) __SNMP_INC_STATS64((net)->mib.ip_statistics, field)
296 #define IP_ADD_STATS(net, field, val) SNMP_ADD_STATS64((net)->mib.ip_statistics, field, val)
297 #define __IP_ADD_STATS(net, field, val) __SNMP_ADD_STATS64((net)->mib.ip_statistics, field, val)
298 #define IP_UPD_PO_STATS(net, field, val) SNMP_UPD_PO_STATS64((net)->mib.ip_statistics, field, val)
299 #define __IP_UPD_PO_STATS(net, field, val) __SNMP_UPD_PO_STATS64((net)->mib.ip_statistics, field, val)
300 #define NET_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.net_statistics, field)
301 #define __NET_INC_STATS(net, field) __SNMP_INC_STATS((net)->mib.net_statistics, field)
302 #define NET_ADD_STATS(net, field, adnd) SNMP_ADD_STATS((net)->mib.net_statistics, field, adnd)
303 #define __NET_ADD_STATS(net, field, adnd) __SNMP_ADD_STATS((net)->mib.net_statistics, field, adnd)
355 u32 range = READ_ONCE(net->ipv4.ip_local_ports.range);
365 if (!net->ipv4.sysctl_local_reserved_ports)
367 return test_bit(port, net->ipv4.sysctl_local_reserved_ports);
377 return port < READ_ONCE(net->ipv4.sysctl_ip_prot_sock);
404 (READ_ONCE((net)->ipv4.sysctl_fwmark_reflect) ? (mark) : 0)
408 return (iph->frag_off & htons(IP_MF | IP_OFFSET)) != 0;
415 * check=0xFEFF. It was noticed by Arthur Skawina _year_ ago. --ANK(000625) */
419 u32 check = (__force u32)iph->check;
421 iph->check = (__force __sum16)(check + (check>=0xFFFF));
422 return --iph->ttl;
427 return inet_dsfield_to_dscp(ip4h->tos);
434 return rt->rt_mtu_locked || dst_metric_locked(dst, RTAX_MTU);
440 u8 pmtudisc = READ_ONCE(inet_sk(sk)->pmtudisc);
449 u8 pmtudisc = READ_ONCE(inet_sk(sk)->pmtudisc);
457 return READ_ONCE(inet_sk(sk)->pmtudisc) < IP_PMTUDISC_PROBE;
462 u8 pmtudisc = READ_ONCE(inet_sk(sk)->pmtudisc);
479 if (READ_ONCE(net->ipv4.sysctl_ip_fwd_use_pmtu) ||
482 mtu = rt->rt_pmtu;
483 if (mtu && time_before(jiffies, READ_ONCE(rt->dst.expires)))
492 mtu = READ_ONCE(dev->mtu);
495 if (rt->rt_uses_gateway && mtu > 576)
502 res = mtu - lwtunnel_headroom(dst->lwtstate, mtu);
516 bool forwarding = IPCB(skb)->flags & IPSKB_FORWARDED;
521 mtu = min(READ_ONCE(dst_dev(dst)->mtu), IP_MAX_MTU);
522 return mtu - lwtunnel_headroom(dst->lwtstate, mtu);
530 refcount_dec_and_test(&fib_metrics->refcnt))
538 dst_init_metrics(dst, fib_metrics->metrics, true);
541 dst->_metrics |= DST_METRICS_REFCOUNTED;
542 refcount_inc(&fib_metrics->refcnt);
551 if (p != &dst_default_metrics && refcount_dec_and_test(&p->refcnt))
565 if (sk && inet_sk(sk)->inet_daddr) {
573 val = atomic_read(&inet_sk(sk)->inet_id);
574 atomic_set(&inet_sk(sk)->inet_id, val + segs);
576 val = atomic_add_return(segs, &inet_sk(sk)->inet_id);
578 iph->id = htons(val);
581 if ((iph->frag_off & htons(IP_DF)) && !skb->ignore_df) {
582 iph->id = 0;
597 return csum_tcpudp_nofold(ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
598 skb->len, proto, 0);
602 * Equivalent to : flow->v4addrs.src = iph->saddr;
603 * flow->v4addrs.dst = iph->daddr;
605 static inline void iph_to_flow_copy_v4addrs(struct flow_keys *flow,
608 BUILD_BUG_ON(offsetof(typeof(flow->addrs), v4addrs.dst) !=
609 offsetof(typeof(flow->addrs), v4addrs.src) +
610 sizeof(flow->addrs.v4addrs.src));
611 memcpy(&flow->addrs.v4addrs, &iph->addrs, sizeof(flow->addrs.v4addrs));
612 flow->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
633 * Map a multicast IP onto multicast MAC for type IP-over-InfiniBand.
682 inet_sk(sk)->inet_rcv_saddr = inet_sk(sk)->inet_saddr = 0;
684 if (sk->sk_family == PF_INET6) {
687 memset(&np->saddr, 0, sizeof(np->saddr));
688 memset(&sk->sk_v6_rcv_saddr, 0, sizeof(sk->sk_v6_rcv_saddr));
780 return __ip_options_echo(net, dopt, skb, &IPCB(skb)->opt);
804 int do_ip_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
806 int ip_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
808 int do_ip_getsockopt(struct sock *sk, int level, int optname,
810 int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
823 ip_cmsg_recv_offset(msg, skb->sk, skb, 0, 0);