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Commit ed75986f authored by Karsten Graul's avatar Karsten Graul Committed by David S. Miller
Browse files

net/smc: ipv6 support for smc_diag.c



Update smc_diag.c to support ipv6 addresses on the diagnosis interface.

Signed-off-by: default avatarKarsten Graul <kgraul@linux.ibm.com>
Signed-off-by: default avatarUrsula Braun <ubraun@linux.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 877ae5be
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+30 −9
Original line number Diff line number Diff line
@@ -38,17 +38,27 @@ static void smc_diag_msg_common_fill(struct smc_diag_msg *r, struct sock *sk)
{
	struct smc_sock *smc = smc_sk(sk);

	r->diag_family = sk->sk_family;
	if (!smc->clcsock)
		return;
	r->id.idiag_sport = htons(smc->clcsock->sk->sk_num);
	r->id.idiag_dport = smc->clcsock->sk->sk_dport;
	r->id.idiag_if = smc->clcsock->sk->sk_bound_dev_if;
	sock_diag_save_cookie(sk, r->id.idiag_cookie);
	if (sk->sk_protocol == SMCPROTO_SMC) {
		r->diag_family = PF_INET;
		memset(&r->id.idiag_src, 0, sizeof(r->id.idiag_src));
		memset(&r->id.idiag_dst, 0, sizeof(r->id.idiag_dst));
		r->id.idiag_src[0] = smc->clcsock->sk->sk_rcv_saddr;
		r->id.idiag_dst[0] = smc->clcsock->sk->sk_daddr;
#if IS_ENABLED(CONFIG_IPV6)
	} else if (sk->sk_protocol == SMCPROTO_SMC6) {
		r->diag_family = PF_INET6;
		memcpy(&r->id.idiag_src, &smc->clcsock->sk->sk_v6_rcv_saddr,
		       sizeof(smc->clcsock->sk->sk_v6_rcv_saddr));
		memcpy(&r->id.idiag_dst, &smc->clcsock->sk->sk_v6_daddr,
		       sizeof(smc->clcsock->sk->sk_v6_daddr));
#endif
	}
}

static int smc_diag_msg_attrs_fill(struct sock *sk, struct sk_buff *skb,
@@ -153,7 +163,8 @@ static int __smc_diag_dump(struct sock *sk, struct sk_buff *skb,
	return -EMSGSIZE;
}

static int smc_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
static int smc_diag_dump_proto(struct proto *prot, struct sk_buff *skb,
			       struct netlink_callback *cb)
{
	struct net *net = sock_net(skb->sk);
	struct nlattr *bc = NULL;
@@ -161,8 +172,8 @@ static int smc_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
	struct sock *sk;
	int rc = 0;

	read_lock(&smc_proto.h.smc_hash->lock);
	head = &smc_proto.h.smc_hash->ht;
	read_lock(&prot->h.smc_hash->lock);
	head = &prot->h.smc_hash->ht;
	if (hlist_empty(head))
		goto out;

@@ -175,7 +186,17 @@ static int smc_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
	}

out:
	read_unlock(&smc_proto.h.smc_hash->lock);
	read_unlock(&prot->h.smc_hash->lock);
	return rc;
}

static int smc_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
	int rc = 0;

	rc = smc_diag_dump_proto(&smc_proto, skb, cb);
	if (!rc)
		rc = smc_diag_dump_proto(&smc_proto6, skb, cb);
	return rc;
}