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Date: Wed, 29 May 2013 14:47:37 +0900
From: Lorenzo Colitti <lorenzo@...gle.com>
To: netdev@...r.kernel.org
Cc: Eric Dumazet <edumazet@...gle.com>,
David Miller <davem@...emloft.net>,
YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>,
Vasiliy Kulikov <segoon@...nwall.com>,
Lorenzo Colitti <lorenzo@...gle.com>
Subject: [PATCH v3 1/3] net: ipv6: Unify {raw,udp}6_sock_seq_show.
udp6_sock_seq_show and raw6_sock_seq_show are identical, except
the UDP version displays ports and the raw version displays the
protocol. Refactor most of the code in these two functions into
a new common ip6_dgram_sock_seq_show function, in preparation
for using it to display ICMPv6 sockets as well.
Also reduce the indentation in parts of include/net/transp_v6.h
to improve readability.
Compiles and displays reasonable results with CONFIG_IPV6={n,m,y}
Signed-off-by: Lorenzo Colitti <lorenzo@...gle.com>
---
include/net/transp_v6.h | 73 +++++++++++++++++++++++++++++--------------------
net/ipv6/datagram.c | 27 ++++++++++++++++++
net/ipv6/raw.c | 45 ++++++------------------------
net/ipv6/udp.c | 49 ++++++---------------------------
4 files changed, 87 insertions(+), 107 deletions(-)
diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index eb40e71..841c33e 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -16,38 +16,51 @@ extern struct proto pingv6_prot;
struct flowi6;
/* extension headers */
-extern int ipv6_exthdrs_init(void);
-extern void ipv6_exthdrs_exit(void);
-extern int ipv6_frag_init(void);
-extern void ipv6_frag_exit(void);
+extern int ipv6_exthdrs_init(void);
+extern void ipv6_exthdrs_exit(void);
+extern int ipv6_frag_init(void);
+extern void ipv6_frag_exit(void);
/* transport protocols */
-extern int pingv6_init(void);
-extern void pingv6_exit(void);
-extern int rawv6_init(void);
-extern void rawv6_exit(void);
-extern int udpv6_init(void);
-extern void udpv6_exit(void);
-extern int udplitev6_init(void);
-extern void udplitev6_exit(void);
-extern int tcpv6_init(void);
-extern void tcpv6_exit(void);
-
-extern int udpv6_connect(struct sock *sk,
- struct sockaddr *uaddr,
- int addr_len);
-
-extern int ip6_datagram_recv_ctl(struct sock *sk,
- struct msghdr *msg,
- struct sk_buff *skb);
-
-extern int ip6_datagram_send_ctl(struct net *net,
- struct sock *sk,
- struct msghdr *msg,
- struct flowi6 *fl6,
- struct ipv6_txoptions *opt,
- int *hlimit, int *tclass,
- int *dontfrag);
+extern int pingv6_init(void);
+extern void pingv6_exit(void);
+extern int rawv6_init(void);
+extern void rawv6_exit(void);
+extern int udpv6_init(void);
+extern void udpv6_exit(void);
+extern int udplitev6_init(void);
+extern void udplitev6_exit(void);
+extern int tcpv6_init(void);
+extern void tcpv6_exit(void);
+
+extern int udpv6_connect(struct sock *sk,
+ struct sockaddr *uaddr,
+ int addr_len);
+
+extern int ip6_datagram_recv_ctl(struct sock *sk,
+ struct msghdr *msg,
+ struct sk_buff *skb);
+
+extern int ip6_datagram_send_ctl(struct net *net,
+ struct sock *sk,
+ struct msghdr *msg,
+ struct flowi6 *fl6,
+ struct ipv6_txoptions *opt,
+ int *hlimit, int *tclass,
+ int *dontfrag);
+
+#define IPV6_SEQ_DGRAM_HEADER \
+ " sl " \
+ "local_address " \
+ "remote_address " \
+ "st tx_queue rx_queue tr tm->when retrnsmt" \
+ " uid timeout inode ref pointer drops\n"
+
+extern void ip6_dgram_sock_seq_show(struct seq_file *seq,
+ struct sock *sp,
+ __u16 srcp,
+ __u16 destp,
+ int bucket);
#define LOOPBACK4_IPV6 cpu_to_be32(0x7f000006)
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 4b56cbb..197e6f4 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -879,3 +879,30 @@ exit_f:
return err;
}
EXPORT_SYMBOL_GPL(ip6_datagram_send_ctl);
+
+void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp,
+ __u16 srcp, __u16 destp, int bucket)
+{
+ struct ipv6_pinfo *np = inet6_sk(sp);
+ const struct in6_addr *dest, *src;
+
+ dest = &np->daddr;
+ src = &np->rcv_saddr;
+ seq_printf(seq,
+ "%5d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
+ "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n",
+ bucket,
+ src->s6_addr32[0], src->s6_addr32[1],
+ src->s6_addr32[2], src->s6_addr32[3], srcp,
+ dest->s6_addr32[0], dest->s6_addr32[1],
+ dest->s6_addr32[2], dest->s6_addr32[3], destp,
+ sp->sk_state,
+ sk_wmem_alloc_get(sp),
+ sk_rmem_alloc_get(sp),
+ 0, 0L, 0,
+ from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
+ 0,
+ sock_i_ino(sp),
+ atomic_read(&sp->sk_refcnt), sp,
+ atomic_read(&sp->sk_drops));
+}
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index eedff8c..83bef86 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1226,45 +1226,16 @@ struct proto rawv6_prot = {
};
#ifdef CONFIG_PROC_FS
-static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
-{
- struct ipv6_pinfo *np = inet6_sk(sp);
- const struct in6_addr *dest, *src;
- __u16 destp, srcp;
-
- dest = &np->daddr;
- src = &np->rcv_saddr;
- destp = 0;
- srcp = inet_sk(sp)->inet_num;
- seq_printf(seq,
- "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
- "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n",
- i,
- src->s6_addr32[0], src->s6_addr32[1],
- src->s6_addr32[2], src->s6_addr32[3], srcp,
- dest->s6_addr32[0], dest->s6_addr32[1],
- dest->s6_addr32[2], dest->s6_addr32[3], destp,
- sp->sk_state,
- sk_wmem_alloc_get(sp),
- sk_rmem_alloc_get(sp),
- 0, 0L, 0,
- from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
- 0,
- sock_i_ino(sp),
- atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
-}
-
static int raw6_seq_show(struct seq_file *seq, void *v)
{
- if (v == SEQ_START_TOKEN)
- seq_printf(seq,
- " sl "
- "local_address "
- "remote_address "
- "st tx_queue rx_queue tr tm->when retrnsmt"
- " uid timeout inode ref pointer drops\n");
- else
- raw6_sock_seq_show(seq, v, raw_seq_private(seq)->bucket);
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(seq, IPV6_SEQ_DGRAM_HEADER);
+ } else {
+ struct sock *sp = v;
+ __u16 srcp = inet_sk(sp)->inet_num;
+ ip6_dgram_sock_seq_show(seq, v, srcp, 0,
+ raw_seq_private(seq)->bucket);
+ }
return 0;
}
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 42923b1..b580853 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1359,48 +1359,17 @@ static const struct inet6_protocol udpv6_protocol = {
/* ------------------------------------------------------------------------ */
#ifdef CONFIG_PROC_FS
-
-static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket)
-{
- struct inet_sock *inet = inet_sk(sp);
- struct ipv6_pinfo *np = inet6_sk(sp);
- const struct in6_addr *dest, *src;
- __u16 destp, srcp;
-
- dest = &np->daddr;
- src = &np->rcv_saddr;
- destp = ntohs(inet->inet_dport);
- srcp = ntohs(inet->inet_sport);
- seq_printf(seq,
- "%5d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
- "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n",
- bucket,
- src->s6_addr32[0], src->s6_addr32[1],
- src->s6_addr32[2], src->s6_addr32[3], srcp,
- dest->s6_addr32[0], dest->s6_addr32[1],
- dest->s6_addr32[2], dest->s6_addr32[3], destp,
- sp->sk_state,
- sk_wmem_alloc_get(sp),
- sk_rmem_alloc_get(sp),
- 0, 0L, 0,
- from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
- 0,
- sock_i_ino(sp),
- atomic_read(&sp->sk_refcnt), sp,
- atomic_read(&sp->sk_drops));
-}
-
int udp6_seq_show(struct seq_file *seq, void *v)
{
- if (v == SEQ_START_TOKEN)
- seq_printf(seq,
- " sl "
- "local_address "
- "remote_address "
- "st tx_queue rx_queue tr tm->when retrnsmt"
- " uid timeout inode ref pointer drops\n");
- else
- udp6_sock_seq_show(seq, v, ((struct udp_iter_state *)seq->private)->bucket);
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(seq, IPV6_SEQ_DGRAM_HEADER);
+ } else {
+ int bucket = ((struct udp_iter_state *)seq->private)->bucket;
+ struct inet_sock *inet = inet_sk(v);
+ __u16 srcp = ntohs(inet->inet_sport);
+ __u16 destp = ntohs(inet->inet_dport);
+ ip6_dgram_sock_seq_show(seq, v, srcp, destp, bucket);
+ }
return 0;
}
--
1.8.2.1
--
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