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net: ipv6: Implement /proc/net/icmp6.

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The format is based on /proc/net/icmp and /proc/net/{udp,raw}6.

Compiles and displays reasonable results with CONFIG_IPV6={n,m,y}
Couldn't figure out how to test without CONFIG_PROC_FS enabled.

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lorenzo Colitti
2013-05-31 15:05:50 +00:00
committed by David S. Miller
parent 8cc785f6f4
commit d862e54614
3 changed files with 99 additions and 32 deletions
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102
net/ipv6/ping.c
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@@ -78,29 +78,6 @@ int dummy_ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
return 0;
}
int __init pingv6_init(void)
{
pingv6_ops.ipv6_recv_error = ipv6_recv_error;
pingv6_ops.ip6_datagram_recv_ctl = ip6_datagram_recv_ctl;
pingv6_ops.icmpv6_err_convert = icmpv6_err_convert;
pingv6_ops.ipv6_icmp_error = ipv6_icmp_error;
pingv6_ops.ipv6_chk_addr = ipv6_chk_addr;
return inet6_register_protosw(&pingv6_protosw);
}
/* This never gets called because it's not possible to unload the ipv6 module,
* but just in case.
*/
void pingv6_exit(void)
{
pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error;
pingv6_ops.ip6_datagram_recv_ctl = dummy_ip6_datagram_recv_ctl;
pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert;
pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error;
pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr;
inet6_unregister_protosw(&pingv6_protosw);
}
int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
size_t len)
{
@@ -214,3 +191,82 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
return err;
}
#ifdef CONFIG_PROC_FS
static void *ping_v6_seq_start(struct seq_file *seq, loff_t *pos)
{
return ping_seq_start(seq, pos, AF_INET6);
}
int ping_v6_seq_show(struct seq_file *seq, void *v)
{
if (v == SEQ_START_TOKEN) {
seq_puts(seq, IPV6_SEQ_DGRAM_HEADER);
} else {
int bucket = ((struct ping_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;
}
static struct ping_seq_afinfo ping_v6_seq_afinfo = {
.name = "icmp6",
.family = AF_INET6,
.seq_fops = &ping_seq_fops,
.seq_ops = {
.start = ping_v6_seq_start,
.show = ping_v6_seq_show,
.next = ping_seq_next,
.stop = ping_seq_stop,
},
};
static int __net_init ping_v6_proc_init_net(struct net *net)
{
return ping_proc_register(net, &ping_v6_seq_afinfo);
}
static void __net_init ping_v6_proc_exit_net(struct net *net)
{
return ping_proc_unregister(net, &ping_v6_seq_afinfo);
}
static struct pernet_operations ping_v6_net_ops = {
.init = ping_v6_proc_init_net,
.exit = ping_v6_proc_exit_net,
};
#endif
int __init pingv6_init(void)
{
#ifdef CONFIG_PROC_FS
int ret = register_pernet_subsys(&ping_v6_net_ops);
if (ret)
return ret;
#endif
pingv6_ops.ipv6_recv_error = ipv6_recv_error;
pingv6_ops.ip6_datagram_recv_ctl = ip6_datagram_recv_ctl;
pingv6_ops.icmpv6_err_convert = icmpv6_err_convert;
pingv6_ops.ipv6_icmp_error = ipv6_icmp_error;
pingv6_ops.ipv6_chk_addr = ipv6_chk_addr;
return inet6_register_protosw(&pingv6_protosw);
}
/* This never gets called because it's not possible to unload the ipv6 module,
* but just in case.
*/
void pingv6_exit(void)
{
pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error;
pingv6_ops.ip6_datagram_recv_ctl = dummy_ip6_datagram_recv_ctl;
pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert;
pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error;
pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr;
#ifdef CONFIG_PROC_FS
unregister_pernet_subsys(&ping_v6_net_ops);
#endif
inet6_unregister_protosw(&pingv6_protosw);
}