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net/smc: ipv6 support for smc_diag.c

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

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Karsten Graul 2018-05-02 16:56:45 +02:00 committed by David S. Miller
parent 877ae5be42
commit ed75986f4a
1 changed files with 30 additions and 9 deletions
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39
net/smc/smc_diag.c
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@ -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);
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 (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;
}