mptcp: drop flags and ifindex arguments
This patch added a new helper mptcp_pm_get_flags_and_ifindex_by_id(),
and used it in __mptcp_subflow_connect() to get the flags and ifindex
values.
Then the two arguments flags and ifindex of __mptcp_subflow_connect()
can be dropped.
Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index ac0aa6f..64a39f30 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -462,8 +462,7 @@ static void mptcp_pm_create_subflow_or_signal_addr(struct mptcp_sock *msk)
check_work_pending(msk);
remote_address((struct sock_common *)sk, &remote);
spin_unlock_bh(&msk->pm.lock);
- __mptcp_subflow_connect(sk, &local->addr, &remote,
- local->flags, local->ifindex);
+ __mptcp_subflow_connect(sk, &local->addr, &remote);
spin_lock_bh(&msk->pm.lock);
return;
}
@@ -518,7 +517,7 @@ static void mptcp_pm_nl_add_addr_received(struct mptcp_sock *msk)
local.family = remote.family;
spin_unlock_bh(&msk->pm.lock);
- __mptcp_subflow_connect(sk, &local, &remote, 0, 0);
+ __mptcp_subflow_connect(sk, &local, &remote);
spin_lock_bh(&msk->pm.lock);
add_addr_echo:
@@ -1105,6 +1104,27 @@ __lookup_addr_by_id(struct pm_nl_pernet *pernet, unsigned int id)
return NULL;
}
+int mptcp_pm_get_flags_and_ifindex_by_id(struct net *net, unsigned int id,
+ u8 *flags, int *ifindex)
+{
+ struct mptcp_pm_addr_entry *entry;
+
+ *flags = 0;
+ *ifindex = 0;
+
+ if (id) {
+ rcu_read_lock();
+ entry = __lookup_addr_by_id(net_generic(net, pm_nl_pernet_id), id);
+ if (entry) {
+ *flags = entry->flags;
+ *ifindex = entry->ifindex;
+ }
+ rcu_read_unlock();
+ }
+
+ return 0;
+}
+
static bool remove_anno_list_by_saddr(struct mptcp_sock *msk,
struct mptcp_addr_info *addr)
{
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 8bdd038..bc1bfd7 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -577,8 +577,7 @@ struct socket *__mptcp_nmpc_socket(const struct mptcp_sock *msk);
/* called with sk socket lock held */
int __mptcp_subflow_connect(struct sock *sk, const struct mptcp_addr_info *loc,
- const struct mptcp_addr_info *remote,
- u8 flags, int ifindex);
+ const struct mptcp_addr_info *remote);
int mptcp_subflow_create_socket(struct sock *sk, struct socket **new_sock);
void mptcp_info2sockaddr(const struct mptcp_addr_info *info,
struct sockaddr_storage *addr,
@@ -733,6 +732,8 @@ mptcp_pm_del_add_timer(struct mptcp_sock *msk,
struct mptcp_pm_add_entry *
mptcp_lookup_anno_list_by_saddr(struct mptcp_sock *msk,
struct mptcp_addr_info *addr);
+int mptcp_pm_get_flags_and_ifindex_by_id(struct net *net, unsigned int id,
+ u8 *flags, int *ifindex);
int mptcp_pm_announce_addr(struct mptcp_sock *msk,
const struct mptcp_addr_info *addr,
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 1151926..8c43aa1 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -1355,8 +1355,7 @@ void mptcp_info2sockaddr(const struct mptcp_addr_info *info,
}
int __mptcp_subflow_connect(struct sock *sk, const struct mptcp_addr_info *loc,
- const struct mptcp_addr_info *remote,
- u8 flags, int ifindex)
+ const struct mptcp_addr_info *remote)
{
struct mptcp_sock *msk = mptcp_sk(sk);
struct mptcp_subflow_context *subflow;
@@ -1367,6 +1366,8 @@ int __mptcp_subflow_connect(struct sock *sk, const struct mptcp_addr_info *loc,
struct sock *ssk;
u32 remote_token;
int addrlen;
+ int ifindex;
+ u8 flags;
int err;
if (!mptcp_is_fully_established(sk))
@@ -1390,6 +1391,8 @@ int __mptcp_subflow_connect(struct sock *sk, const struct mptcp_addr_info *loc,
local_id = err;
}
+ mptcp_pm_get_flags_and_ifindex_by_id(sock_net(sk), local_id,
+ &flags, &ifindex);
subflow->remote_key = msk->remote_key;
subflow->local_key = msk->local_key;
subflow->token = msk->token;
