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[UDP]: Revert udplite and code split.

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This reverts commit db1ed684f6 ("[IPV6]
UDP: Rename IPv6 UDP files."), commit
8be8af8fa4 ("[IPV4] UDP: Move
IPv4-specific bits to other file.") and commit
e898d4db27 ("[UDP]: Allow users to
configure UDP-Lite.").

First, udplite is of such small cost, and it is a core protocol just
like TCP and normal UDP are.

We spent enormous amounts of effort to make udplite share as much code
with core UDP as possible.  All of that work is less valuable if we're
just going to slap a config option on udplite support.

It is also causing build failures, as reported on linux-next, showing
that the changeset was not tested very well.  In fact, this is the
second build failure resulting from the udplite change.

Finally, the config options provided was a bool, instead of a modular
option.  Meaning the udplite code does not even get build tested
by allmodconfig builds, and furthermore the user is not presented
with a reasonable modular build option which is particularly needed
by distribution vendors.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2008-03-06 16:22:02 -08:00
parent ba0fa45994
commit db8dac20d5
17 changed files with 1101 additions and 1222 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
net/ipv6/Makefile
View File

@@ -6,7 +6,7 @@ obj-$(CONFIG_IPV6) += ipv6.o
ipv6-objs := af_inet6.o anycast.o ip6_output.o ip6_input.o addrconf.o \
addrlabel.o \
route.o ip6_fib.o ipv6_sockglue.o ndisc.o udp_ipv6.o \
route.o ip6_fib.o ipv6_sockglue.o ndisc.o udp.o udplite.o \
raw.o protocol.o icmp.o mcast.o reassembly.o tcp_ipv6.o \
exthdrs.o datagram.o ip6_flowlabel.o inet6_connection_sock.o
@@ -17,7 +17,6 @@ ipv6-$(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_ipv6.o
ipv6-objs += $(ipv6-y)

14
net/ipv6/af_inet6.c
View File

@@ -813,16 +813,12 @@ 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);
@@ -841,9 +837,7 @@ 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)
@@ -888,11 +882,9 @@ 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)
@@ -1063,10 +1055,8 @@ 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);
@@ -1085,9 +1075,7 @@ static void __exit inet6_exit(void)
ipv6_sysctl_unregister();
#endif
udpv6_exit();
#ifdef CONFIG_IP_UDPLITE
udplitev6_exit();
#endif
tcpv6_exit();
/* Cleanup code parts. */
@@ -1117,9 +1105,7 @@ 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);
}

6
net/ipv6/ipv6_sockglue.c
View File

@@ -127,9 +127,7 @@ 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;
@@ -169,7 +167,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
} else {
struct proto *prot = &udp_prot;
if (IS_PROTO_UDPLITE(sk->sk_protocol))
if (sk->sk_protocol == IPPROTO_UDPLITE)
prot = &udplite_prot;
local_bh_disable();
sock_prot_inuse_add(sk->sk_prot, -1);
@@ -734,9 +732,7 @@ 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)

6
net/ipv6/proc.c
View File

@@ -39,10 +39,8 @@ 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",
@@ -113,7 +111,6 @@ 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),
@@ -121,7 +118,6 @@ 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)
{
@@ -180,9 +176,7 @@ 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;
}

16
net/ipv6/udp_ipv6.c → net/ipv6/udp.c
View File

@@ -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 (IS_PROTO_UDPLITE(proto)) {
if (proto == IPPROTO_UDPLITE) {
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, IS_PROTO_UDPLITE(proto));
UDP6_INC_STATS_BH(UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
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",
IS_PROTO_UDPLITE(proto) ? "-Lite" : "",
proto == IPPROTO_UDPLITE ? "-Lite" : "",
ulen, skb->len);
discard:
UDP6_INC_STATS_BH(UDP_MIB_INERRORS, IS_PROTO_UDPLITE(proto));
UDP6_INC_STATS_BH(UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
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 (IS_SOL_UDPFAMILY(level))
if (level == SOL_UDP || level == SOL_UDPLITE)
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 (IS_SOL_UDPFAMILY(level))
if (level == SOL_UDP || level == SOL_UDPLITE)
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 (IS_SOL_UDPFAMILY(level))
if (level == SOL_UDP || level == SOL_UDPLITE)
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 (IS_SOL_UDPFAMILY(level))
if (level == SOL_UDP || level == SOL_UDPLITE)
return udp_lib_getsockopt(sk, level, optname, optval, optlen);
return compat_ipv6_getsockopt(sk, level, optname, optval, optlen);
}

0
net/ipv6/udplite_ipv6.c → net/ipv6/udplite.c
View File