diff options
author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-03-01 01:06:47 +0900 |
---|---|---|
committer | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-03-04 15:18:22 +0900 |
commit | e898d4db2749c6052072e9bc4448e396cbdeb06a (patch) | |
tree | 2b8673d85210a23e67d0817b18f401411e8936f3 /net/ipv6 | |
parent | c6aefafb7ec620911d46174eed514f9df639e5a4 (diff) |
[UDP]: Allow users to configure UDP-Lite.
Let's give users an option for disabling UDP-Lite (~4K).
old:
| text data bss dec hex filename
| 286498 12432 6072 305002 4a76a net/ipv4/built-in.o
| 193830 8192 3204 205226 321aa net/ipv6/ipv6.o
new (without UDP-Lite):
| text data bss dec hex filename
| 284086 12136 5432 301654 49a56 net/ipv4/built-in.o
| 191835 7832 3076 202743 317f7 net/ipv6/ipv6.o
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Diffstat (limited to 'net/ipv6')
-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 |
5 files changed, 35 insertions, 10 deletions
diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile index ae14617e607..81969479955 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 9869f87243c..243c42a6b80 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 bf2a686aa13..0a18fecb93d 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 199ef379e50..5ba7ae849d0 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 53739de829d..55feac7ba71 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); } |