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Message-Id: <200608231150.49536@strip-the-willow>
Date: Wed, 23 Aug 2006 11:50:49 +0100
From: gerrit@....abdn.ac.uk
To: davem@...emloft.net
Cc: jmorris@...ei.org, alan@...rguk.ukuu.org.uk, kuznet@....inr.ac.ru,
pekkas@...core.fi, kaber@...eworks.de, yoshfuji@...ux-ipv6.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [RFC][PATCH 3/3] net/ipv4: misc. support files
[Net/IPv4]: Miscellaneous changes which complete the
v4 support for UDP-Lite.
Signed-off-by: Gerrit Renker <gerrit@....abdn.ac.uk>
---
include/linux/in.h | 1 +
include/linux/snmp.h | 14 ++++++++++++++
include/linux/socket.h | 1 +
include/net/snmp.h | 2 ++
include/net/xfrm.h | 2 ++
net/ipv4/af_inet.c | 15 ++++++++++++++-
net/ipv4/proc.c | 16 ++++++++++++++--
net/ipv6/udp.c | 1 +
8 files changed, 49 insertions(+), 3 deletions(-)
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index c84a320..21038ec 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1223,10 +1223,14 @@ static int __init init_ipv4_mibs(void)
tcp_statistics[1] = alloc_percpu(struct tcp_mib);
udp_statistics[0] = alloc_percpu(struct udp_mib);
udp_statistics[1] = alloc_percpu(struct udp_mib);
+ udplite_statistics[0] = alloc_percpu(struct udp_mib);
+ udplite_statistics[1] = alloc_percpu(struct udp_mib);
+
if (!
(net_statistics[0] && net_statistics[1] && ip_statistics[0]
&& ip_statistics[1] && tcp_statistics[0] && tcp_statistics[1]
- && udp_statistics[0] && udp_statistics[1]))
+ && udp_statistics[0] && udp_statistics[1]
+ && udplite_statistics[0] && udplite_statistics[1] ) )
return -ENOMEM;
(void) tcp_mib_init();
@@ -1300,6 +1304,11 @@ #endif
inet_register_protosw(q);
/*
+ * Add UDP-Lite (RFC 3828)
+ */
+ udplite4_register();
+
+ /*
* Set the ARP module up
*/
@@ -1367,6 +1376,8 @@ static int __init ipv4_proc_init(void)
goto out_tcp;
if (udp4_proc_init())
goto out_udp;
+ if (udplite4_proc_init())
+ goto out_udplite;
if (fib_proc_init())
goto out_fib;
if (ip_misc_proc_init())
@@ -1376,6 +1387,8 @@ out:
out_misc:
fib_proc_exit();
out_fib:
+ udplite4_proc_exit();
+out_udplite:
udp4_proc_exit();
out_udp:
tcp4_proc_exit();
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index d61e2a9..c93f091 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -66,9 +66,10 @@ static int sockstat_seq_show(struct seq_
tcp_death_row.tw_count, atomic_read(&tcp_sockets_allocated),
atomic_read(&tcp_memory_allocated));
seq_printf(seq, "UDP: inuse %d\n", fold_prot_inuse(&udp_prot));
+ seq_printf(seq, "UDPLITE: inuse %d\n", fold_prot_inuse(&udplite_prot));
seq_printf(seq, "RAW: inuse %d\n", fold_prot_inuse(&raw_prot));
- seq_printf(seq, "FRAG: inuse %d memory %d\n", ip_frag_nqueues,
- atomic_read(&ip_frag_mem));
+ seq_printf(seq, "FRAG: inuse %d memory %d\n", ip_frag_nqueues,
+ atomic_read(&ip_frag_mem));
return 0;
}
@@ -302,6 +303,17 @@ static int snmp_seq_show(struct seq_file
fold_field((void **) udp_statistics,
snmp4_udp_list[i].entry));
+ /* the UDP and UDP-Lite MIBs are the same */
+ seq_puts(seq, "\nUdpLite:");
+ for (i = 0; snmp4_udp_list[i].name != NULL; i++)
+ seq_printf(seq, " %s", snmp4_udp_list[i].name);
+
+ seq_puts(seq, "\nUdpLite:");
+ for (i = 0; snmp4_udp_list[i].name != NULL; i++)
+ seq_printf(seq, " %lu",
+ fold_field((void **) udplite_statistics,
+ snmp4_udp_list[i].entry) );
+
seq_putc(seq, '\n');
return 0;
}
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 3d54f24..51efd04 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1051,6 +1051,7 @@ static struct udp_seq_afinfo udp6_seq_af
.owner = THIS_MODULE,
.name = "udp6",
.family = AF_INET6,
+ .hashtable = udp_hash,
.seq_show = udp6_seq_show,
.seq_fops = &udp6_seq_fops,
};
diff --git a/include/linux/in.h b/include/linux/in.h
index 94f557f..5ada82e 100644
--- a/include/linux/in.h
+++ b/include/linux/in.h
@@ -44,6 +44,7 @@ enum {
IPPROTO_COMP = 108, /* Compression Header protocol */
IPPROTO_SCTP = 132, /* Stream Control Transport Protocol */
+ IPPROTO_UDPLITE = 136, /* UDP-Lite (RFC 3828) */
IPPROTO_RAW = 255, /* Raw IP packets */
IPPROTO_MAX
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 3614090..592b666 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -264,6 +264,7 @@ #define SOL_UDP 17
#define SOL_IPV6 41
#define SOL_ICMPV6 58
#define SOL_SCTP 132
+#define SOL_UDPLITE 136 /* UDP-Lite (RFC 3828) */
#define SOL_RAW 255
#define SOL_IPX 256
#define SOL_AX25 257
diff --git a/include/linux/snmp.h b/include/linux/snmp.h
index 4db25d5..29c8617 100644
--- a/include/linux/snmp.h
+++ b/include/linux/snmp.h
@@ -158,6 +158,20 @@ enum
__UDP_MIB_MAX
};
+/* udplite mib definitions */
+enum {
+ UDPLITE_MIB_NUM = 0,
+ UDPLITE_MIB_INDATAGRAMS, /* total received datagramns */
+ UDPLITE_MIB_IN_PARTIALCOV, /* rcvd datagrams with partial coverage */
+ UDPLITE_MIB_NOPORTS, /* rcvd datagrams to wrong ports */
+ UDPLITE_MIB_INERRORS, /* total erroneous received datagrams */
+ UDPLITE_MIB_IN_BAD_COV, /* checksum coverage errors */
+ UDPLITE_MIB_IN_BAD_CSUM, /* checksum itself did not qualify */
+ UDPLITE_MIB_OUTDATAGRAMS, /* total sent datagrams */
+ UDPLITE_MIB_OUT_PARTIALCOV, /* sent datagrams with partial coverage */
+ __UDPLITE_MIB_MAX
+};
+
/* sctp mib definitions */
/*
* draft-ietf-sigtran-sctp-mib-07.txt
diff --git a/include/net/snmp.h b/include/net/snmp.h
index a36bed8..8d51026 100644
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -137,6 +137,8 @@ #define SNMP_INC_STATS(mib, field) \
(per_cpu_ptr(mib[!in_softirq()], raw_smp_processor_id())->mibs[field]++)
#define SNMP_DEC_STATS(mib, field) \
(per_cpu_ptr(mib[!in_softirq()], raw_smp_processor_id())->mibs[field]--)
+#define SNMP_DEC_STATS_BH(mib, field) \
+ (per_cpu_ptr(mib[0], raw_smp_processor_id())->mibs[field]--)
#define SNMP_ADD_STATS_BH(mib, field, addend) \
(per_cpu_ptr(mib[0], raw_smp_processor_id())->mibs[field] += addend)
#define SNMP_ADD_STATS_USER(mib, field, addend) \
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 9c5ee9f..e583ba6 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -501,6 +501,7 @@ u16 xfrm_flowi_sport(struct flowi *fl)
switch(fl->proto) {
case IPPROTO_TCP:
case IPPROTO_UDP:
+ case IPPROTO_UDPLITE:
case IPPROTO_SCTP:
port = fl->fl_ip_sport;
break;
@@ -521,6 +522,7 @@ u16 xfrm_flowi_dport(struct flowi *fl)
switch(fl->proto) {
case IPPROTO_TCP:
case IPPROTO_UDP:
+ case IPPROTO_UDPLITE:
case IPPROTO_SCTP:
port = fl->fl_ip_dport;
break;
-
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