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Diffstat (limited to 'net/llc')
-rw-r--r--net/llc/af_llc.c2
-rw-r--r--net/llc/llc_conn.c49
-rw-r--r--net/llc/llc_if.c2
3 files changed, 32 insertions, 21 deletions
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 57c35c960b2c..9b06c380866b 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -402,7 +402,7 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen)
memcpy(laddr.mac, addr->sllc_mac, IFHWADDRLEN);
laddr.lsap = addr->sllc_sap;
rc = -EADDRINUSE; /* mac + sap clash. */
- ask = llc_lookup_established(sap, &daddr, &laddr);
+ ask = llc_lookup_established(sap, &daddr, &laddr, &init_net);
if (ask) {
sock_put(ask);
goto out_put;
diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c
index 912aa9bd5e29..d037009ee10f 100644
--- a/net/llc/llc_conn.c
+++ b/net/llc/llc_conn.c
@@ -453,11 +453,13 @@ static int llc_exec_conn_trans_actions(struct sock *sk,
static inline bool llc_estab_match(const struct llc_sap *sap,
const struct llc_addr *daddr,
const struct llc_addr *laddr,
- const struct sock *sk)
+ const struct sock *sk,
+ const struct net *net)
{
struct llc_sock *llc = llc_sk(sk);
- return llc->laddr.lsap == laddr->lsap &&
+ return net_eq(sock_net(sk), net) &&
+ llc->laddr.lsap == laddr->lsap &&
llc->daddr.lsap == daddr->lsap &&
ether_addr_equal(llc->laddr.mac, laddr->mac) &&
ether_addr_equal(llc->daddr.mac, daddr->mac);
@@ -468,6 +470,7 @@ static inline bool llc_estab_match(const struct llc_sap *sap,
* @sap: SAP
* @daddr: address of remote LLC (MAC + SAP)
* @laddr: address of local LLC (MAC + SAP)
+ * @net: netns to look up a socket in
*
* Search connection list of the SAP and finds connection using the remote
* mac, remote sap, local mac, and local sap. Returns pointer for
@@ -476,7 +479,8 @@ static inline bool llc_estab_match(const struct llc_sap *sap,
*/
static struct sock *__llc_lookup_established(struct llc_sap *sap,
struct llc_addr *daddr,
- struct llc_addr *laddr)
+ struct llc_addr *laddr,
+ const struct net *net)
{
struct sock *rc;
struct hlist_nulls_node *node;
@@ -486,12 +490,12 @@ static struct sock *__llc_lookup_established(struct llc_sap *sap,
rcu_read_lock();
again:
sk_nulls_for_each_rcu(rc, node, laddr_hb) {
- if (llc_estab_match(sap, daddr, laddr, rc)) {
+ if (llc_estab_match(sap, daddr, laddr, rc, net)) {
/* Extra checks required by SLAB_TYPESAFE_BY_RCU */
if (unlikely(!refcount_inc_not_zero(&rc->sk_refcnt)))
goto again;
if (unlikely(llc_sk(rc)->sap != sap ||
- !llc_estab_match(sap, daddr, laddr, rc))) {
+ !llc_estab_match(sap, daddr, laddr, rc, net))) {
sock_put(rc);
continue;
}
@@ -513,29 +517,33 @@ found:
struct sock *llc_lookup_established(struct llc_sap *sap,
struct llc_addr *daddr,
- struct llc_addr *laddr)
+ struct llc_addr *laddr,
+ const struct net *net)
{
struct sock *sk;
local_bh_disable();
- sk = __llc_lookup_established(sap, daddr, laddr);
+ sk = __llc_lookup_established(sap, daddr, laddr, net);
local_bh_enable();
return sk;
}
static inline bool llc_listener_match(const struct llc_sap *sap,
const struct llc_addr *laddr,
- const struct sock *sk)
+ const struct sock *sk,
+ const struct net *net)
{
struct llc_sock *llc = llc_sk(sk);
- return sk->sk_type == SOCK_STREAM && sk->sk_state == TCP_LISTEN &&
+ return net_eq(sock_net(sk), net) &&
+ sk->sk_type == SOCK_STREAM && sk->sk_state == TCP_LISTEN &&
llc->laddr.lsap == laddr->lsap &&
ether_addr_equal(llc->laddr.mac, laddr->mac);
}
static struct sock *__llc_lookup_listener(struct llc_sap *sap,
- struct llc_addr *laddr)
+ struct llc_addr *laddr,
+ const struct net *net)
{
struct sock *rc;
struct hlist_nulls_node *node;
@@ -545,12 +553,12 @@ static struct sock *__llc_lookup_listener(struct llc_sap *sap,
rcu_read_lock();
again:
sk_nulls_for_each_rcu(rc, node, laddr_hb) {
- if (llc_listener_match(sap, laddr, rc)) {
+ if (llc_listener_match(sap, laddr, rc, net)) {
/* Extra checks required by SLAB_TYPESAFE_BY_RCU */
if (unlikely(!refcount_inc_not_zero(&rc->sk_refcnt)))
goto again;
if (unlikely(llc_sk(rc)->sap != sap ||
- !llc_listener_match(sap, laddr, rc))) {
+ !llc_listener_match(sap, laddr, rc, net))) {
sock_put(rc);
continue;
}
@@ -574,6 +582,7 @@ found:
* llc_lookup_listener - Finds listener for local MAC + SAP
* @sap: SAP
* @laddr: address of local LLC (MAC + SAP)
+ * @net: netns to look up a socket in
*
* Search connection list of the SAP and finds connection listening on
* local mac, and local sap. Returns pointer for parent socket found,
@@ -581,24 +590,26 @@ found:
* Caller has to make sure local_bh is disabled.
*/
static struct sock *llc_lookup_listener(struct llc_sap *sap,
- struct llc_addr *laddr)
+ struct llc_addr *laddr,
+ const struct net *net)
{
+ struct sock *rc = __llc_lookup_listener(sap, laddr, net);
static struct llc_addr null_addr;
- struct sock *rc = __llc_lookup_listener(sap, laddr);
if (!rc)
- rc = __llc_lookup_listener(sap, &null_addr);
+ rc = __llc_lookup_listener(sap, &null_addr, net);
return rc;
}
static struct sock *__llc_lookup(struct llc_sap *sap,
struct llc_addr *daddr,
- struct llc_addr *laddr)
+ struct llc_addr *laddr,
+ const struct net *net)
{
- struct sock *sk = __llc_lookup_established(sap, daddr, laddr);
+ struct sock *sk = __llc_lookup_established(sap, daddr, laddr, net);
- return sk ? : llc_lookup_listener(sap, laddr);
+ return sk ? : llc_lookup_listener(sap, laddr, net);
}
/**
@@ -776,7 +787,7 @@ void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb)
llc_pdu_decode_da(skb, daddr.mac);
llc_pdu_decode_dsap(skb, &daddr.lsap);
- sk = __llc_lookup(sap, &saddr, &daddr);
+ sk = __llc_lookup(sap, &saddr, &daddr, dev_net(skb->dev));
if (!sk)
goto drop;
diff --git a/net/llc/llc_if.c b/net/llc/llc_if.c
index dde9bf08a593..58a5f419adc6 100644
--- a/net/llc/llc_if.c
+++ b/net/llc/llc_if.c
@@ -92,7 +92,7 @@ int llc_establish_connection(struct sock *sk, const u8 *lmac, u8 *dmac, u8 dsap)
daddr.lsap = dsap;
memcpy(daddr.mac, dmac, sizeof(daddr.mac));
memcpy(laddr.mac, lmac, sizeof(laddr.mac));
- existing = llc_lookup_established(llc->sap, &daddr, &laddr);
+ existing = llc_lookup_established(llc->sap, &daddr, &laddr, sock_net(sk));
if (existing) {
if (existing->sk_state == TCP_ESTABLISHED) {
sk = existing;
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-18 15:49:51 +0300