diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/Kconfig | 10 | ||||
| -rw-r--r-- | net/ipv4/Makefile | 3 | ||||
| -rw-r--r-- | net/ipv4/af_inet.c | 7 | ||||
| -rw-r--r-- | net/ipv4/proc.c | 5 | ||||
| -rw-r--r-- | net/ipv4/udp.c | 24 | ||||
| -rw-r--r-- | net/ipv6/Makefile | 3 | ||||
| -rw-r--r-- | net/ipv6/af_inet6.c | 14 | ||||
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 6 | ||||
| -rw-r--r-- | net/ipv6/proc.c | 6 | ||||
| -rw-r--r-- | net/ipv6/udp.c | 16 |
10 files changed, 71 insertions, 23 deletions
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig index 19880b0..efe3832 100644 --- a/net/ipv4/Kconfig +++ b/net/ipv4/Kconfig @@ -632,5 +632,15 @@ config TCP_MD5SIG If unsure, say N. +config IP_UDPLITE + bool "IP: UDP-Lite Protocol (RFC 3828)" + default n + ---help--- + UDP-Lite (RFC 3828) is a UDP-like protocol with variable-length + checksum. Read <file:Documentation/networking/udplite.txt> for + details. + + If unsure, say N. + source "net/ipv4/ipvs/Kconfig" diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile index ad40ef3..e88cebd 100644 --- a/net/ipv4/Makefile +++ b/net/ipv4/Makefile @@ -8,7 +8,7 @@ obj-y := route.o inetpeer.o protocol.o \ inet_timewait_sock.o inet_connection_sock.o \ tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o \ tcp_minisocks.o tcp_cong.o \ - datagram.o raw.o udp.o udplite.o \ + datagram.o raw.o udp.o \ arp.o icmp.o devinet.o af_inet.o igmp.o \ fib_frontend.o fib_semantics.o \ inet_fragment.o @@ -49,6 +49,7 @@ obj-$(CONFIG_TCP_CONG_SCALABLE) += tcp_scalable.o obj-$(CONFIG_TCP_CONG_LP) += tcp_lp.o obj-$(CONFIG_TCP_CONG_YEAH) += tcp_yeah.o obj-$(CONFIG_TCP_CONG_ILLINOIS) += tcp_illinois.o +obj-$(CONFIG_IP_UDPLITE) += udplite.o obj-$(CONFIG_NETLABEL) += cipso_ipv4.o obj-$(CONFIG_XFRM) += xfrm4_policy.o xfrm4_state.o xfrm4_input.o \ diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 4f539bd..67260c0 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1317,15 +1317,18 @@ static int __init init_ipv4_mibs(void) if (snmp_mib_init((void **)udp_statistics, sizeof(struct udp_mib)) < 0) goto err_udp_mib; +#ifdef CONFIG_IP_UDPLITE if (snmp_mib_init((void **)udplite_statistics, sizeof(struct udp_mib)) < 0) goto err_udplite_mib; - +#endif tcp_mib_init(); return 0; +#ifdef CONFIG_IP_UDPLITE err_udplite_mib: +#endif snmp_mib_free((void **)udp_statistics); err_udp_mib: snmp_mib_free((void **)tcp_statistics); @@ -1423,8 +1426,10 @@ static int __init inet_init(void) /* Setup UDP memory threshold */ udp_init(); +#ifdef CONFIG_IP_UDPLITE /* Add UDP-Lite (RFC 3828) */ udplite4_register(); +#endif /* * Set the ICMP layer up diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c index d63474c..d75ddb7 100644 --- a/net/ipv4/proc.c +++ b/net/ipv4/proc.c @@ -59,7 +59,9 @@ static int sockstat_seq_show(struct seq_file *seq, void *v) atomic_read(&tcp_memory_allocated)); seq_printf(seq, "UDP: inuse %d mem %d\n", sock_prot_inuse_get(&udp_prot), atomic_read(&udp_memory_allocated)); +#ifdef CONFIG_IP_UDPLITE seq_printf(seq, "UDPLITE: inuse %d\n", sock_prot_inuse_get(&udplite_prot)); +#endif seq_printf(seq, "RAW: inuse %d\n", sock_prot_inuse_get(&raw_prot)); seq_printf(seq, "FRAG: inuse %d memory %d\n", ip_frag_nqueues(&init_net), ip_frag_mem(&init_net)); @@ -349,6 +351,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v) snmp_fold_field((void **)udp_statistics, snmp4_udp_list[i].entry)); +#ifdef CONFIG_IP_UDPLITE /* the UDP and UDP-Lite MIBs are the same */ seq_puts(seq, "\nUdpLite:"); for (i = 0; snmp4_udp_list[i].name != NULL; i++) @@ -359,7 +362,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v) seq_printf(seq, " %lu", snmp_fold_field((void **)udplite_statistics, snmp4_udp_list[i].entry)); - +#endif seq_putc(seq, '\n'); return 0; } diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 7ea1b67..acc353a 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1127,7 +1127,7 @@ static inline int udp4_csum_init(struct sk_buff *skb, struct udphdr *uh, UDP_SKB_CB(skb)->partial_cov = 0; UDP_SKB_CB(skb)->cscov = skb->len; - if (proto == IPPROTO_UDPLITE) { + if (IS_PROTO_UDPLITE(proto)) { err = udplite_checksum_init(skb, uh); if (err) return err; @@ -1175,7 +1175,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], if (ulen > skb->len) goto short_packet; - if (proto == IPPROTO_UDP) { + if (IS_PROTO_UDPLITE(proto)) { /* UDP validates ulen. */ if (ulen < sizeof(*uh) || pskb_trim_rcsum(skb, ulen)) goto short_packet; @@ -1217,7 +1217,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], if (udp_lib_checksum_complete(skb)) goto csum_error; - UDP_INC_STATS_BH(UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE); + UDP_INC_STATS_BH(UDP_MIB_NOPORTS, IS_PROTO_UDPLITE(proto)); icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0); /* @@ -1229,7 +1229,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], short_packet: LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: short packet: From %u.%u.%u.%u:%u %d/%d to %u.%u.%u.%u:%u\n", - proto == IPPROTO_UDPLITE ? "-Lite" : "", + IS_PROTO_UDPLITE(proto) ? "-Lite" : "", NIPQUAD(saddr), ntohs(uh->source), ulen, @@ -1244,14 +1244,14 @@ csum_error: * the network is concerned, anyway) as per 4.1.3.4 (MUST). */ LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: bad checksum. From %d.%d.%d.%d:%d to %d.%d.%d.%d:%d ulen %d\n", - proto == IPPROTO_UDPLITE ? "-Lite" : "", + IS_PROTO_UDPLITE(proto) ? "-Lite" : "", NIPQUAD(saddr), ntohs(uh->source), NIPQUAD(daddr), ntohs(uh->dest), ulen); drop: - UDP_INC_STATS_BH(UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE); + UDP_INC_STATS_BH(UDP_MIB_INERRORS, IS_PROTO_UDPLITE(proto)); kfree_skb(skb); return 0; } @@ -1279,7 +1279,9 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, struct udp_sock *up = udp_sk(sk); int val; int err = 0; +#ifdef CONFIG_IP_UDPLITE int is_udplite = IS_UDPLITE(sk); +#endif if (optlen<sizeof(int)) return -EINVAL; @@ -1315,6 +1317,7 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, } break; +#ifdef CONFIG_IP_UDPLITE /* * UDP-Lite's partial checksum coverage (RFC 3828). */ @@ -1340,6 +1343,7 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, up->pcrlen = val; up->pcflag |= UDPLITE_RECV_CC; break; +#endif default: err = -ENOPROTOOPT; @@ -1352,7 +1356,7 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, int udp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, int optlen) { - if (level == SOL_UDP || level == SOL_UDPLITE) + if (IS_SOL_UDPFAMILY(level)) return udp_lib_setsockopt(sk, level, optname, optval, optlen, udp_push_pending_frames); return ip_setsockopt(sk, level, optname, optval, optlen); @@ -1362,7 +1366,7 @@ int udp_setsockopt(struct sock *sk, int level, int optname, int compat_udp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, int optlen) { - if (level == SOL_UDP || level == SOL_UDPLITE) + if (IS_SOL_UDPFAMILY(level)) return udp_lib_setsockopt(sk, level, optname, optval, optlen, udp_push_pending_frames); return compat_ip_setsockopt(sk, level, optname, optval, optlen); @@ -1416,7 +1420,7 @@ int udp_lib_getsockopt(struct sock *sk, int level, int optname, int udp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { - if (level == SOL_UDP || level == SOL_UDPLITE) + if (IS_SOL_UDPFAMILY(level)) return udp_lib_getsockopt(sk, level, optname, optval, optlen); return ip_getsockopt(sk, level, optname, optval, optlen); } @@ -1425,7 +1429,7 @@ int udp_getsockopt(struct sock *sk, int level, int optname, int compat_udp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { - if (level == SOL_UDP || level == SOL_UDPLITE) + if (IS_SOL_UDPFAMILY(level)) return udp_lib_getsockopt(sk, level, optname, optval, optlen); return compat_ip_getsockopt(sk, level, optname, optval, optlen); } diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile index ae14617..8196947 100644 --- a/net/ipv6/Makefile +++ b/net/ipv6/Makefile @@ -6,7 +6,7 @@ obj-$(CONFIG_IPV6) += ipv6.o ipv6-objs := af_inet6.o anycast.o ip6_output.o ip6_input.o addrconf.o \ addrlabel.o \ - route.o ip6_fib.o ipv6_sockglue.o ndisc.o udp.o udplite.o \ + route.o ip6_fib.o ipv6_sockglue.o ndisc.o udp.o \ raw.o protocol.o icmp.o mcast.o reassembly.o tcp_ipv6.o \ exthdrs.o datagram.o ip6_flowlabel.o inet6_connection_sock.o @@ -17,6 +17,7 @@ ipv6-$(CONFIG_NETFILTER) += netfilter.o ipv6-$(CONFIG_IPV6_MULTIPLE_TABLES) += fib6_rules.o ipv6-$(CONFIG_PROC_FS) += proc.o ipv6-$(CONFIG_SYN_COOKIES) += syncookies.o +ipv6-$(CONFIG_IP_UDPLITE) += udplite.o ipv6-objs += $(ipv6-y) diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 9869f87..243c42a 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -691,12 +691,16 @@ static int __init init_ipv6_mibs(void) goto err_icmpmsg_mib; if (snmp_mib_init((void **)udp_stats_in6, sizeof (struct udp_mib)) < 0) goto err_udp_mib; +#ifdef CONFIG_IP_UDPLITE if (snmp_mib_init((void **)udplite_stats_in6, sizeof (struct udp_mib)) < 0) goto err_udplite_mib; +#endif return 0; +#ifdef CONFIG_IP_UDPLITE err_udplite_mib: +#endif snmp_mib_free((void **)udp_stats_in6); err_udp_mib: snmp_mib_free((void **)icmpv6msg_statistics); @@ -715,7 +719,9 @@ static void cleanup_ipv6_mibs(void) snmp_mib_free((void **)icmpv6_statistics); snmp_mib_free((void **)icmpv6msg_statistics); snmp_mib_free((void **)udp_stats_in6); +#ifdef CONFIG_IP_UDPLITE snmp_mib_free((void **)udplite_stats_in6); +#endif } static int inet6_net_init(struct net *net) @@ -760,9 +766,11 @@ static int __init inet6_init(void) if (err) goto out_unregister_tcp_proto; +#ifdef CONFIG_IP_UDPLITE err = proto_register(&udplitev6_prot, 1); if (err) goto out_unregister_udp_proto; +#endif err = proto_register(&rawv6_prot, 1); if (err) @@ -933,8 +941,10 @@ out_sock_register_fail: out_unregister_raw_proto: proto_unregister(&rawv6_prot); out_unregister_udplite_proto: +#ifdef CONFIG_IP_UDPLITE proto_unregister(&udplitev6_prot); out_unregister_udp_proto: +#endif proto_unregister(&udpv6_prot); out_unregister_tcp_proto: proto_unregister(&tcpv6_prot); @@ -950,7 +960,9 @@ static void __exit inet6_exit(void) rtnl_unregister_all(PF_INET6); udpv6_exit(); +#ifdef CONFIG_IP_UDPLITE udplitev6_exit(); +#endif tcpv6_exit(); /* Cleanup code parts. */ @@ -982,7 +994,9 @@ static void __exit inet6_exit(void) unregister_pernet_subsys(&inet6_net_ops); cleanup_ipv6_mibs(); proto_unregister(&rawv6_prot); +#ifdef CONFIG_IP_UDPLITE proto_unregister(&udplitev6_prot); +#endif proto_unregister(&udpv6_prot); proto_unregister(&tcpv6_prot); } diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index bf2a686..0a18fec 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -239,7 +239,9 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, struct sk_buff *pktopt; if (sk->sk_protocol != IPPROTO_UDP && +#ifdef CONFIG_IP_UDPLITE sk->sk_protocol != IPPROTO_UDPLITE && +#endif sk->sk_protocol != IPPROTO_TCP) break; @@ -279,7 +281,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, } else { struct proto *prot = &udp_prot; - if (sk->sk_protocol == IPPROTO_UDPLITE) + if (IS_PROTO_UDPLITE(sk->sk_protocol)) prot = &udplite_prot; local_bh_disable(); sock_prot_inuse_add(sk->sk_prot, -1); @@ -844,7 +846,9 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, switch (optname) { case IPV6_ADDRFORM: if (sk->sk_protocol != IPPROTO_UDP && +#ifdef CONFIG_IP_UDPLITE sk->sk_protocol != IPPROTO_UDPLITE && +#endif sk->sk_protocol != IPPROTO_TCP) return -EINVAL; if (sk->sk_state != TCP_ESTABLISHED) diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c index 199ef379..5ba7ae8 100644 --- a/net/ipv6/proc.c +++ b/net/ipv6/proc.c @@ -39,8 +39,10 @@ static int sockstat6_seq_show(struct seq_file *seq, void *v) sock_prot_inuse_get(&tcpv6_prot)); seq_printf(seq, "UDP6: inuse %d\n", sock_prot_inuse_get(&udpv6_prot)); +#ifdef CONFIG_IP_UDPLITE seq_printf(seq, "UDPLITE6: inuse %d\n", sock_prot_inuse_get(&udplitev6_prot)); +#endif seq_printf(seq, "RAW6: inuse %d\n", sock_prot_inuse_get(&rawv6_prot)); seq_printf(seq, "FRAG6: inuse %d memory %d\n", @@ -111,6 +113,7 @@ static struct snmp_mib snmp6_udp6_list[] = { SNMP_MIB_SENTINEL }; +#ifdef CONFIG_IP_UDPLITE static struct snmp_mib snmp6_udplite6_list[] = { SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS), SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS), @@ -118,6 +121,7 @@ static struct snmp_mib snmp6_udplite6_list[] = { SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS), SNMP_MIB_SENTINEL }; +#endif static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, void **mib) { @@ -176,7 +180,9 @@ static int snmp6_seq_show(struct seq_file *seq, void *v) snmp6_seq_show_item(seq, (void **)icmpv6_statistics, snmp6_icmp6_list); snmp6_seq_show_icmpv6msg(seq, (void **)icmpv6msg_statistics); snmp6_seq_show_item(seq, (void **)udp_stats_in6, snmp6_udp6_list); +#ifdef CONFIG_IP_UDPLITE snmp6_seq_show_item(seq, (void **)udplite_stats_in6, snmp6_udplite6_list); +#endif } return 0; } diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 53739de..55feac7 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -400,7 +400,7 @@ static inline int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh, UDP_SKB_CB(skb)->partial_cov = 0; UDP_SKB_CB(skb)->cscov = skb->len; - if (proto == IPPROTO_UDPLITE) { + if (IS_PROTO_UDPLITE(proto)) { err = udplite_checksum_init(skb, uh); if (err) return err; @@ -489,7 +489,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], if (udp_lib_checksum_complete(skb)) goto discard; - UDP6_INC_STATS_BH(UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE); + UDP6_INC_STATS_BH(UDP_MIB_NOPORTS, IS_PROTO_UDPLITE(proto)); icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0, dev); @@ -510,11 +510,11 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], short_packet: LIMIT_NETDEBUG(KERN_DEBUG "UDP%sv6: short packet: %d/%u\n", - proto == IPPROTO_UDPLITE ? "-Lite" : "", + IS_PROTO_UDPLITE(proto) ? "-Lite" : "", ulen, skb->len); discard: - UDP6_INC_STATS_BH(UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE); + UDP6_INC_STATS_BH(UDP_MIB_INERRORS, IS_PROTO_UDPLITE(proto)); kfree_skb(skb); return 0; } @@ -890,7 +890,7 @@ int udpv6_destroy_sock(struct sock *sk) int udpv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, int optlen) { - if (level == SOL_UDP || level == SOL_UDPLITE) + if (IS_SOL_UDPFAMILY(level)) return udp_lib_setsockopt(sk, level, optname, optval, optlen, udp_v6_push_pending_frames); return ipv6_setsockopt(sk, level, optname, optval, optlen); @@ -900,7 +900,7 @@ int udpv6_setsockopt(struct sock *sk, int level, int optname, int compat_udpv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, int optlen) { - if (level == SOL_UDP || level == SOL_UDPLITE) + if (IS_SOL_UDPFAMILY(level)) return udp_lib_setsockopt(sk, level, optname, optval, optlen, udp_v6_push_pending_frames); return compat_ipv6_setsockopt(sk, level, optname, optval, optlen); @@ -910,7 +910,7 @@ int compat_udpv6_setsockopt(struct sock *sk, int level, int optname, int udpv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { - if (level == SOL_UDP || level == SOL_UDPLITE) + if (IS_SOL_UDPFAMILY(level)) return udp_lib_getsockopt(sk, level, optname, optval, optlen); return ipv6_getsockopt(sk, level, optname, optval, optlen); } @@ -919,7 +919,7 @@ int udpv6_getsockopt(struct sock *sk, int level, int optname, int compat_udpv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { - if (level == SOL_UDP || level == SOL_UDPLITE) + if (IS_SOL_UDPFAMILY(level)) return udp_lib_getsockopt(sk, level, optname, optval, optlen); return compat_ipv6_getsockopt(sk, level, optname, optval, optlen); } |
