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-rw-r--r--net/core/dev_ioctl.c3
-rw-r--r--net/devlink/rate.c4
-rw-r--r--net/ipv4/esp4_offload.c6
-rw-r--r--net/ipv6/esp6_offload.c6
-rw-r--r--net/l2tp/l2tp_core.c6
-rw-r--r--net/mptcp/options.c54
-rw-r--r--net/mptcp/pm.c20
-rw-r--r--net/mptcp/pm_kernel.c2
-rw-r--r--net/mptcp/protocol.c78
-rw-r--r--net/mptcp/protocol.h3
-rw-r--r--net/openvswitch/actions.c68
-rw-r--r--net/openvswitch/flow_netlink.c64
-rw-r--r--net/openvswitch/flow_netlink.h2
-rw-r--r--net/unix/af_unix.c3
-rw-r--r--net/vmw_vsock/af_vsock.c40
-rw-r--r--net/xfrm/xfrm_device.c2
-rw-r--r--net/xfrm/xfrm_output.c8
-rw-r--r--net/xfrm/xfrm_state.c30
-rw-r--r--net/xfrm/xfrm_user.c8
19 files changed, 216 insertions, 191 deletions
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
index ad54b12d4b4c..8bb71a10dba0 100644
--- a/net/core/dev_ioctl.c
+++ b/net/core/dev_ioctl.c
@@ -443,6 +443,9 @@ static int generic_hwtstamp_ioctl_lower(struct net_device *dev, int cmd,
struct ifreq ifrr;
int err;
+ if (!kernel_cfg->ifr)
+ return -EINVAL;
+
strscpy_pad(ifrr.ifr_name, dev->name, IFNAMSIZ);
ifrr.ifr_ifru = kernel_cfg->ifr->ifr_ifru;
diff --git a/net/devlink/rate.c b/net/devlink/rate.c
index 264fb82cba19..d157a8419bca 100644
--- a/net/devlink/rate.c
+++ b/net/devlink/rate.c
@@ -828,13 +828,15 @@ void devl_rate_nodes_destroy(struct devlink *devlink)
if (!devlink_rate->parent)
continue;
- refcount_dec(&devlink_rate->parent->refcnt);
if (devlink_rate_is_leaf(devlink_rate))
ops->rate_leaf_parent_set(devlink_rate, NULL, devlink_rate->priv,
NULL, NULL);
else if (devlink_rate_is_node(devlink_rate))
ops->rate_node_parent_set(devlink_rate, NULL, devlink_rate->priv,
NULL, NULL);
+
+ refcount_dec(&devlink_rate->parent->refcnt);
+ devlink_rate->parent = NULL;
}
list_for_each_entry_safe(devlink_rate, tmp, &devlink->rate_list, list) {
if (devlink_rate_is_node(devlink_rate)) {
diff --git a/net/ipv4/esp4_offload.c b/net/ipv4/esp4_offload.c
index e0d94270da28..05828d4cb6cd 100644
--- a/net/ipv4/esp4_offload.c
+++ b/net/ipv4/esp4_offload.c
@@ -122,8 +122,10 @@ static struct sk_buff *xfrm4_tunnel_gso_segment(struct xfrm_state *x,
struct sk_buff *skb,
netdev_features_t features)
{
- __be16 type = x->inner_mode.family == AF_INET6 ? htons(ETH_P_IPV6)
- : htons(ETH_P_IP);
+ const struct xfrm_mode *inner_mode = xfrm_ip2inner_mode(x,
+ XFRM_MODE_SKB_CB(skb)->protocol);
+ __be16 type = inner_mode->family == AF_INET6 ? htons(ETH_P_IPV6)
+ : htons(ETH_P_IP);
return skb_eth_gso_segment(skb, features, type);
}
diff --git a/net/ipv6/esp6_offload.c b/net/ipv6/esp6_offload.c
index 7b41fb4f00b5..22410243ebe8 100644
--- a/net/ipv6/esp6_offload.c
+++ b/net/ipv6/esp6_offload.c
@@ -158,8 +158,10 @@ static struct sk_buff *xfrm6_tunnel_gso_segment(struct xfrm_state *x,
struct sk_buff *skb,
netdev_features_t features)
{
- __be16 type = x->inner_mode.family == AF_INET ? htons(ETH_P_IP)
- : htons(ETH_P_IPV6);
+ const struct xfrm_mode *inner_mode = xfrm_ip2inner_mode(x,
+ XFRM_MODE_SKB_CB(skb)->protocol);
+ __be16 type = inner_mode->family == AF_INET ? htons(ETH_P_IP)
+ : htons(ETH_P_IPV6);
return skb_eth_gso_segment(skb, features, type);
}
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 369a2f2e459c..0710281dd95a 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1246,9 +1246,9 @@ static int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb, uns
else
l2tp_build_l2tpv3_header(session, __skb_push(skb, session->hdr_len));
- /* Reset skb netfilter state */
- memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
- IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED | IPSKB_REROUTED);
+ /* Reset control buffer */
+ memset(skb->cb, 0, sizeof(skb->cb));
+
nf_reset_ct(skb);
/* L2TP uses its own lockdep subclass to avoid lockdep splats caused by
diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 1103b3341a70..f24ae7d40e88 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -838,8 +838,11 @@ bool mptcp_established_options(struct sock *sk, struct sk_buff *skb,
opts->suboptions = 0;
+ /* Force later mptcp_write_options(), but do not use any actual
+ * option space.
+ */
if (unlikely(__mptcp_check_fallback(msk) && !mptcp_check_infinite_map(skb)))
- return false;
+ return true;
if (unlikely(skb && TCP_SKB_CB(skb)->tcp_flags & TCPHDR_RST)) {
if (mptcp_established_options_fastclose(sk, &opt_size, remaining, opts) ||
@@ -1041,6 +1044,31 @@ static void __mptcp_snd_una_update(struct mptcp_sock *msk, u64 new_snd_una)
WRITE_ONCE(msk->snd_una, new_snd_una);
}
+static void rwin_update(struct mptcp_sock *msk, struct sock *ssk,
+ struct sk_buff *skb)
+{
+ struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk);
+ struct tcp_sock *tp = tcp_sk(ssk);
+ u64 mptcp_rcv_wnd;
+
+ /* Avoid touching extra cachelines if TCP is going to accept this
+ * skb without filling the TCP-level window even with a possibly
+ * outdated mptcp-level rwin.
+ */
+ if (!skb->len || skb->len < tcp_receive_window(tp))
+ return;
+
+ mptcp_rcv_wnd = atomic64_read(&msk->rcv_wnd_sent);
+ if (!after64(mptcp_rcv_wnd, subflow->rcv_wnd_sent))
+ return;
+
+ /* Some other subflow grew the mptcp-level rwin since rcv_wup,
+ * resync.
+ */
+ tp->rcv_wnd += mptcp_rcv_wnd - subflow->rcv_wnd_sent;
+ subflow->rcv_wnd_sent = mptcp_rcv_wnd;
+}
+
static void ack_update_msk(struct mptcp_sock *msk,
struct sock *ssk,
struct mptcp_options_received *mp_opt)
@@ -1208,6 +1236,7 @@ bool mptcp_incoming_options(struct sock *sk, struct sk_buff *skb)
*/
if (mp_opt.use_ack)
ack_update_msk(msk, sk, &mp_opt);
+ rwin_update(msk, sk, skb);
/* Zero-data-length packets are dropped by the caller and not
* propagated to the MPTCP layer, so the skb extension does not
@@ -1294,6 +1323,10 @@ static void mptcp_set_rwin(struct tcp_sock *tp, struct tcphdr *th)
if (rcv_wnd_new != rcv_wnd_old) {
raise_win:
+ /* The msk-level rcv wnd is after the tcp level one,
+ * sync the latter.
+ */
+ rcv_wnd_new = rcv_wnd_old;
win = rcv_wnd_old - ack_seq;
tp->rcv_wnd = min_t(u64, win, U32_MAX);
new_win = tp->rcv_wnd;
@@ -1317,6 +1350,21 @@ raise_win:
update_wspace:
WRITE_ONCE(msk->old_wspace, tp->rcv_wnd);
+ subflow->rcv_wnd_sent = rcv_wnd_new;
+}
+
+static void mptcp_track_rwin(struct tcp_sock *tp)
+{
+ const struct sock *ssk = (const struct sock *)tp;
+ struct mptcp_subflow_context *subflow;
+ struct mptcp_sock *msk;
+
+ if (!ssk)
+ return;
+
+ subflow = mptcp_subflow_ctx(ssk);
+ msk = mptcp_sk(subflow->conn);
+ WRITE_ONCE(msk->old_wspace, tp->rcv_wnd);
}
__sum16 __mptcp_make_csum(u64 data_seq, u32 subflow_seq, u16 data_len, __wsum sum)
@@ -1611,6 +1659,10 @@ mp_rst:
opts->reset_transient,
opts->reset_reason);
return;
+ } else if (unlikely(!opts->suboptions)) {
+ /* Fallback to TCP */
+ mptcp_track_rwin(tp);
+ return;
}
if (OPTION_MPTCP_PRIO & opts->suboptions) {
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c
index 2ff1b9499568..9604b91902b8 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -18,6 +18,7 @@ struct mptcp_pm_add_entry {
u8 retrans_times;
struct timer_list add_timer;
struct mptcp_sock *sock;
+ struct rcu_head rcu;
};
static DEFINE_SPINLOCK(mptcp_pm_list_lock);
@@ -155,7 +156,7 @@ bool mptcp_remove_anno_list_by_saddr(struct mptcp_sock *msk,
entry = mptcp_pm_del_add_timer(msk, addr, false);
ret = entry;
- kfree(entry);
+ kfree_rcu(entry, rcu);
return ret;
}
@@ -345,22 +346,27 @@ mptcp_pm_del_add_timer(struct mptcp_sock *msk,
{
struct mptcp_pm_add_entry *entry;
struct sock *sk = (struct sock *)msk;
- struct timer_list *add_timer = NULL;
+ bool stop_timer = false;
+
+ rcu_read_lock();
spin_lock_bh(&msk->pm.lock);
entry = mptcp_lookup_anno_list_by_saddr(msk, addr);
if (entry && (!check_id || entry->addr.id == addr->id)) {
entry->retrans_times = ADD_ADDR_RETRANS_MAX;
- add_timer = &entry->add_timer;
+ stop_timer = true;
}
if (!check_id && entry)
list_del(&entry->list);
spin_unlock_bh(&msk->pm.lock);
- /* no lock, because sk_stop_timer_sync() is calling timer_delete_sync() */
- if (add_timer)
- sk_stop_timer_sync(sk, add_timer);
+ /* Note: entry might have been removed by another thread.
+ * We hold rcu_read_lock() to ensure it is not freed under us.
+ */
+ if (stop_timer)
+ sk_stop_timer_sync(sk, &entry->add_timer);
+ rcu_read_unlock();
return entry;
}
@@ -415,7 +421,7 @@ static void mptcp_pm_free_anno_list(struct mptcp_sock *msk)
list_for_each_entry_safe(entry, tmp, &free_list, list) {
sk_stop_timer_sync(sk, &entry->add_timer);
- kfree(entry);
+ kfree_rcu(entry, rcu);
}
}
diff --git a/net/mptcp/pm_kernel.c b/net/mptcp/pm_kernel.c
index 2ae95476dba3..0a50fd5edc06 100644
--- a/net/mptcp/pm_kernel.c
+++ b/net/mptcp/pm_kernel.c
@@ -672,7 +672,7 @@ static void mptcp_pm_nl_add_addr_received(struct mptcp_sock *msk)
void mptcp_pm_nl_rm_addr(struct mptcp_sock *msk, u8 rm_id)
{
- if (rm_id && WARN_ON_ONCE(msk->pm.add_addr_accepted == 0)) {
+ if (rm_id && !WARN_ON_ONCE(msk->pm.add_addr_accepted == 0)) {
u8 limit_add_addr_accepted =
mptcp_pm_get_limit_add_addr_accepted(msk);
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 90b4aeca2596..33b5dce431c2 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -78,6 +78,13 @@ bool __mptcp_try_fallback(struct mptcp_sock *msk, int fb_mib)
if (__mptcp_check_fallback(msk))
return true;
+ /* The caller possibly is not holding the msk socket lock, but
+ * in the fallback case only the current subflow is touching
+ * the OoO queue.
+ */
+ if (!RB_EMPTY_ROOT(&msk->out_of_order_queue))
+ return false;
+
spin_lock_bh(&msk->fallback_lock);
if (!msk->allow_infinite_fallback) {
spin_unlock_bh(&msk->fallback_lock);
@@ -937,14 +944,19 @@ static void mptcp_reset_rtx_timer(struct sock *sk)
bool mptcp_schedule_work(struct sock *sk)
{
- if (inet_sk_state_load(sk) != TCP_CLOSE &&
- schedule_work(&mptcp_sk(sk)->work)) {
- /* each subflow already holds a reference to the sk, and the
- * workqueue is invoked by a subflow, so sk can't go away here.
- */
- sock_hold(sk);
+ if (inet_sk_state_load(sk) == TCP_CLOSE)
+ return false;
+
+ /* Get a reference on this socket, mptcp_worker() will release it.
+ * As mptcp_worker() might complete before us, we can not avoid
+ * a sock_hold()/sock_put() if schedule_work() returns false.
+ */
+ sock_hold(sk);
+
+ if (schedule_work(&mptcp_sk(sk)->work))
return true;
- }
+
+ sock_put(sk);
return false;
}
@@ -2399,7 +2411,6 @@ bool __mptcp_retransmit_pending_data(struct sock *sk)
/* flags for __mptcp_close_ssk() */
#define MPTCP_CF_PUSH BIT(1)
-#define MPTCP_CF_FASTCLOSE BIT(2)
/* be sure to send a reset only if the caller asked for it, also
* clean completely the subflow status when the subflow reaches
@@ -2410,7 +2421,7 @@ static void __mptcp_subflow_disconnect(struct sock *ssk,
unsigned int flags)
{
if (((1 << ssk->sk_state) & (TCPF_CLOSE | TCPF_LISTEN)) ||
- (flags & MPTCP_CF_FASTCLOSE)) {
+ subflow->send_fastclose) {
/* The MPTCP code never wait on the subflow sockets, TCP-level
* disconnect should never fail
*/
@@ -2457,14 +2468,8 @@ static void __mptcp_close_ssk(struct sock *sk, struct sock *ssk,
lock_sock_nested(ssk, SINGLE_DEPTH_NESTING);
- if ((flags & MPTCP_CF_FASTCLOSE) && !__mptcp_check_fallback(msk)) {
- /* be sure to force the tcp_close path
- * to generate the egress reset
- */
- ssk->sk_lingertime = 0;
- sock_set_flag(ssk, SOCK_LINGER);
- subflow->send_fastclose = 1;
- }
+ if (subflow->send_fastclose && ssk->sk_state != TCP_CLOSE)
+ tcp_set_state(ssk, TCP_CLOSE);
need_push = (flags & MPTCP_CF_PUSH) && __mptcp_retransmit_pending_data(sk);
if (!dispose_it) {
@@ -2560,7 +2565,8 @@ static void __mptcp_close_subflow(struct sock *sk)
if (ssk_state != TCP_CLOSE &&
(ssk_state != TCP_CLOSE_WAIT ||
- inet_sk_state_load(sk) != TCP_ESTABLISHED))
+ inet_sk_state_load(sk) != TCP_ESTABLISHED ||
+ __mptcp_check_fallback(msk)))
continue;
/* 'subflow_data_ready' will re-sched once rx queue is empty */
@@ -2768,9 +2774,26 @@ static void mptcp_do_fastclose(struct sock *sk)
struct mptcp_sock *msk = mptcp_sk(sk);
mptcp_set_state(sk, TCP_CLOSE);
- mptcp_for_each_subflow_safe(msk, subflow, tmp)
- __mptcp_close_ssk(sk, mptcp_subflow_tcp_sock(subflow),
- subflow, MPTCP_CF_FASTCLOSE);
+
+ /* Explicitly send the fastclose reset as need */
+ if (__mptcp_check_fallback(msk))
+ return;
+
+ mptcp_for_each_subflow_safe(msk, subflow, tmp) {
+ struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
+
+ lock_sock(ssk);
+
+ /* Some subflow socket states don't allow/need a reset.*/
+ if ((1 << ssk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE))
+ goto unlock;
+
+ subflow->send_fastclose = 1;
+ tcp_send_active_reset(ssk, ssk->sk_allocation,
+ SK_RST_REASON_TCP_ABORT_ON_CLOSE);
+unlock:
+ release_sock(ssk);
+ }
}
static void mptcp_worker(struct work_struct *work)
@@ -2797,7 +2820,11 @@ static void mptcp_worker(struct work_struct *work)
__mptcp_close_subflow(sk);
if (mptcp_close_tout_expired(sk)) {
+ struct mptcp_subflow_context *subflow, *tmp;
+
mptcp_do_fastclose(sk);
+ mptcp_for_each_subflow_safe(msk, subflow, tmp)
+ __mptcp_close_ssk(sk, subflow->tcp_sock, subflow, 0);
mptcp_close_wake_up(sk);
}
@@ -3222,7 +3249,8 @@ static int mptcp_disconnect(struct sock *sk, int flags)
/* msk->subflow is still intact, the following will not free the first
* subflow
*/
- mptcp_destroy_common(msk, MPTCP_CF_FASTCLOSE);
+ mptcp_do_fastclose(sk);
+ mptcp_destroy_common(msk);
/* The first subflow is already in TCP_CLOSE status, the following
* can't overlap with a fallback anymore
@@ -3401,7 +3429,7 @@ void mptcp_rcv_space_init(struct mptcp_sock *msk, const struct sock *ssk)
msk->rcvq_space.space = TCP_INIT_CWND * TCP_MSS_DEFAULT;
}
-void mptcp_destroy_common(struct mptcp_sock *msk, unsigned int flags)
+void mptcp_destroy_common(struct mptcp_sock *msk)
{
struct mptcp_subflow_context *subflow, *tmp;
struct sock *sk = (struct sock *)msk;
@@ -3410,7 +3438,7 @@ void mptcp_destroy_common(struct mptcp_sock *msk, unsigned int flags)
/* join list will be eventually flushed (with rst) at sock lock release time */
mptcp_for_each_subflow_safe(msk, subflow, tmp)
- __mptcp_close_ssk(sk, mptcp_subflow_tcp_sock(subflow), subflow, flags);
+ __mptcp_close_ssk(sk, mptcp_subflow_tcp_sock(subflow), subflow, 0);
__skb_queue_purge(&sk->sk_receive_queue);
skb_rbtree_purge(&msk->out_of_order_queue);
@@ -3428,7 +3456,7 @@ static void mptcp_destroy(struct sock *sk)
/* allow the following to close even the initial subflow */
msk->free_first = 1;
- mptcp_destroy_common(msk, 0);
+ mptcp_destroy_common(msk);
sk_sockets_allocated_dec(sk);
}
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 379a88e14e8d..6ca97096607c 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -509,6 +509,7 @@ struct mptcp_subflow_context {
u64 remote_key;
u64 idsn;
u64 map_seq;
+ u64 rcv_wnd_sent;
u32 snd_isn;
u32 token;
u32 rel_write_seq;
@@ -976,7 +977,7 @@ static inline void mptcp_propagate_sndbuf(struct sock *sk, struct sock *ssk)
local_bh_enable();
}
-void mptcp_destroy_common(struct mptcp_sock *msk, unsigned int flags);
+void mptcp_destroy_common(struct mptcp_sock *msk);
#define MPTCP_TOKEN_MAX_RETRIES 4
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 2832e0794197..792ca44a461d 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -572,69 +572,6 @@ static int set_ipv6(struct sk_buff *skb, struct sw_flow_key *flow_key,
return 0;
}
-static int set_nsh(struct sk_buff *skb, struct sw_flow_key *flow_key,
- const struct nlattr *a)
-{
- struct nshhdr *nh;
- size_t length;
- int err;
- u8 flags;
- u8 ttl;
- int i;
-
- struct ovs_key_nsh key;
- struct ovs_key_nsh mask;
-
- err = nsh_key_from_nlattr(a, &key, &mask);
- if (err)
- return err;
-
- /* Make sure the NSH base header is there */
- if (!pskb_may_pull(skb, skb_network_offset(skb) + NSH_BASE_HDR_LEN))
- return -ENOMEM;
-
- nh = nsh_hdr(skb);
- length = nsh_hdr_len(nh);
-
- /* Make sure the whole NSH header is there */
- err = skb_ensure_writable(skb, skb_network_offset(skb) +
- length);
- if (unlikely(err))
- return err;
-
- nh = nsh_hdr(skb);
- skb_postpull_rcsum(skb, nh, length);
- flags = nsh_get_flags(nh);
- flags = OVS_MASKED(flags, key.base.flags, mask.base.flags);
- flow_key->nsh.base.flags = flags;
- ttl = nsh_get_ttl(nh);
- ttl = OVS_MASKED(ttl, key.base.ttl, mask.base.ttl);
- flow_key->nsh.base.ttl = ttl;
- nsh_set_flags_and_ttl(nh, flags, ttl);
- nh->path_hdr = OVS_MASKED(nh->path_hdr, key.base.path_hdr,
- mask.base.path_hdr);
- flow_key->nsh.base.path_hdr = nh->path_hdr;
- switch (nh->mdtype) {
- case NSH_M_TYPE1:
- for (i = 0; i < NSH_MD1_CONTEXT_SIZE; i++) {
- nh->md1.context[i] =
- OVS_MASKED(nh->md1.context[i], key.context[i],
- mask.context[i]);
- }
- memcpy(flow_key->nsh.context, nh->md1.context,
- sizeof(nh->md1.context));
- break;
- case NSH_M_TYPE2:
- memset(flow_key->nsh.context, 0,
- sizeof(flow_key->nsh.context));
- break;
- default:
- return -EINVAL;
- }
- skb_postpush_rcsum(skb, nh, length);
- return 0;
-}
-
/* Must follow skb_ensure_writable() since that can move the skb data. */
static void set_tp_port(struct sk_buff *skb, __be16 *port,
__be16 new_port, __sum16 *check)
@@ -1130,10 +1067,6 @@ static int execute_masked_set_action(struct sk_buff *skb,
get_mask(a, struct ovs_key_ethernet *));
break;
- case OVS_KEY_ATTR_NSH:
- err = set_nsh(skb, flow_key, a);
- break;
-
case OVS_KEY_ATTR_IPV4:
err = set_ipv4(skb, flow_key, nla_data(a),
get_mask(a, struct ovs_key_ipv4 *));
@@ -1170,6 +1103,7 @@ static int execute_masked_set_action(struct sk_buff *skb,
case OVS_KEY_ATTR_CT_LABELS:
case OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4:
case OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6:
+ case OVS_KEY_ATTR_NSH:
err = -EINVAL;
break;
}
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index ad64bb9ab5e2..1cb4f97335d8 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -1305,6 +1305,11 @@ static int metadata_from_nlattrs(struct net *net, struct sw_flow_match *match,
return 0;
}
+/*
+ * Constructs NSH header 'nh' from attributes of OVS_ACTION_ATTR_PUSH_NSH,
+ * where 'nh' points to a memory block of 'size' bytes. It's assumed that
+ * attributes were previously validated with validate_push_nsh().
+ */
int nsh_hdr_from_nlattr(const struct nlattr *attr,
struct nshhdr *nh, size_t size)
{
@@ -1314,8 +1319,6 @@ int nsh_hdr_from_nlattr(const struct nlattr *attr,
u8 ttl = 0;
int mdlen = 0;
- /* validate_nsh has check this, so we needn't do duplicate check here
- */
if (size < NSH_BASE_HDR_LEN)
return -ENOBUFS;
@@ -1359,46 +1362,6 @@ int nsh_hdr_from_nlattr(const struct nlattr *attr,
return 0;
}
-int nsh_key_from_nlattr(const struct nlattr *attr,
- struct ovs_key_nsh *nsh, struct ovs_key_nsh *nsh_mask)
-{
- struct nlattr *a;
- int rem;
-
- /* validate_nsh has check this, so we needn't do duplicate check here
- */
- nla_for_each_nested(a, attr, rem) {
- int type = nla_type(a);
-
- switch (type) {
- case OVS_NSH_KEY_ATTR_BASE: {
- const struct ovs_nsh_key_base *base = nla_data(a);
- const struct ovs_nsh_key_base *base_mask = base + 1;
-
- nsh->base = *base;
- nsh_mask->base = *base_mask;
- break;
- }
- case OVS_NSH_KEY_ATTR_MD1: {
- const struct ovs_nsh_key_md1 *md1 = nla_data(a);
- const struct ovs_nsh_key_md1 *md1_mask = md1 + 1;
-
- memcpy(nsh->context, md1->context, sizeof(*md1));
- memcpy(nsh_mask->context, md1_mask->context,
- sizeof(*md1_mask));
- break;
- }
- case OVS_NSH_KEY_ATTR_MD2:
- /* Not supported yet */
- return -ENOTSUPP;
- default:
- return -EINVAL;
- }
- }
-
- return 0;
-}
-
static int nsh_key_put_from_nlattr(const struct nlattr *attr,
struct sw_flow_match *match, bool is_mask,
bool is_push_nsh, bool log)
@@ -2839,17 +2802,13 @@ static int validate_and_copy_set_tun(const struct nlattr *attr,
return err;
}
-static bool validate_nsh(const struct nlattr *attr, bool is_mask,
- bool is_push_nsh, bool log)
+static bool validate_push_nsh(const struct nlattr *attr, bool log)
{
struct sw_flow_match match;
struct sw_flow_key key;
- int ret = 0;
ovs_match_init(&match, &key, true, NULL);
- ret = nsh_key_put_from_nlattr(attr, &match, is_mask,
- is_push_nsh, log);
- return !ret;
+ return !nsh_key_put_from_nlattr(attr, &match, false, true, log);
}
/* Return false if there are any non-masked bits set.
@@ -2997,13 +2956,6 @@ static int validate_set(const struct nlattr *a,
break;
- case OVS_KEY_ATTR_NSH:
- if (eth_type != htons(ETH_P_NSH))
- return -EINVAL;
- if (!validate_nsh(nla_data(a), masked, false, log))
- return -EINVAL;
- break;
-
default:
return -EINVAL;
}
@@ -3437,7 +3389,7 @@ static int __ovs_nla_copy_actions(struct net *net, const struct nlattr *attr,
return -EINVAL;
}
mac_proto = MAC_PROTO_NONE;
- if (!validate_nsh(nla_data(a), false, true, true))
+ if (!validate_push_nsh(nla_data(a), log))
return -EINVAL;
break;
diff --git a/net/openvswitch/flow_netlink.h b/net/openvswitch/flow_netlink.h
index fe7f77fc5f18..ff8cdecbe346 100644
--- a/net/openvswitch/flow_netlink.h
+++ b/net/openvswitch/flow_netlink.h
@@ -65,8 +65,6 @@ int ovs_nla_put_actions(const struct nlattr *attr,
void ovs_nla_free_flow_actions(struct sw_flow_actions *);
void ovs_nla_free_flow_actions_rcu(struct sw_flow_actions *);
-int nsh_key_from_nlattr(const struct nlattr *attr, struct ovs_key_nsh *nsh,
- struct ovs_key_nsh *nsh_mask);
int nsh_hdr_from_nlattr(const struct nlattr *attr, struct nshhdr *nh,
size_t size);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 768098dec231..833c3616d2a2 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2954,6 +2954,7 @@ static int unix_stream_read_generic(struct unix_stream_read_state *state,
u = unix_sk(sk);
+redo:
/* Lock the socket to prevent queue disordering
* while sleeps in memcpy_tomsg
*/
@@ -2965,7 +2966,6 @@ static int unix_stream_read_generic(struct unix_stream_read_state *state,
struct sk_buff *skb, *last;
int chunk;
-redo:
unix_state_lock(sk);
if (sock_flag(sk, SOCK_DEAD)) {
err = -ECONNRESET;
@@ -3015,7 +3015,6 @@ again:
goto out;
}
- mutex_lock(&u->iolock);
goto redo;
unlock:
unix_state_unlock(sk);
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 76763247a377..a9ca9c3b87b3 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1661,18 +1661,40 @@ static int vsock_connect(struct socket *sock, struct sockaddr *addr,
timeout = schedule_timeout(timeout);
lock_sock(sk);
- if (signal_pending(current)) {
- err = sock_intr_errno(timeout);
- sk->sk_state = sk->sk_state == TCP_ESTABLISHED ? TCP_CLOSING : TCP_CLOSE;
- sock->state = SS_UNCONNECTED;
- vsock_transport_cancel_pkt(vsk);
- vsock_remove_connected(vsk);
- goto out_wait;
- } else if ((sk->sk_state != TCP_ESTABLISHED) && (timeout == 0)) {
- err = -ETIMEDOUT;
+ /* Connection established. Whatever happens to socket once we
+ * release it, that's not connect()'s concern. No need to go
+ * into signal and timeout handling. Call it a day.
+ *
+ * Note that allowing to "reset" an already established socket
+ * here is racy and insecure.
+ */
+ if (sk->sk_state == TCP_ESTABLISHED)
+ break;
+
+ /* If connection was _not_ established and a signal/timeout came
+ * to be, we want the socket's state reset. User space may want
+ * to retry.
+ *
+ * sk_state != TCP_ESTABLISHED implies that socket is not on
+ * vsock_connected_table. We keep the binding and the transport
+ * assigned.
+ */
+ if (signal_pending(current) || timeout == 0) {
+ err = timeout == 0 ? -ETIMEDOUT : sock_intr_errno(timeout);
+
+ /* Listener might have already responded with
+ * VIRTIO_VSOCK_OP_RESPONSE. Its handling expects our
+ * sk_state == TCP_SYN_SENT, which hereby we break.
+ * In such case VIRTIO_VSOCK_OP_RST will follow.
+ */
sk->sk_state = TCP_CLOSE;
sock->state = SS_UNCONNECTED;
+
+ /* Try to cancel VIRTIO_VSOCK_OP_REQUEST skb sent out by
+ * transport->connect().
+ */
vsock_transport_cancel_pkt(vsk);
+
goto out_wait;
}
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 44b9de6e4e77..52ae0e034d29 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -438,7 +438,7 @@ ok:
check_tunnel_size = x->xso.type == XFRM_DEV_OFFLOAD_PACKET &&
x->props.mode == XFRM_MODE_TUNNEL;
- switch (x->inner_mode.family) {
+ switch (skb_dst(skb)->ops->family) {
case AF_INET:
/* Check for IPv4 options */
if (ip_hdr(skb)->ihl != 5)
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 9077730ff7d0..54222fcbd7fd 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -698,7 +698,7 @@ static void xfrm_get_inner_ipproto(struct sk_buff *skb, struct xfrm_state *x)
return;
if (x->outer_mode.encap == XFRM_MODE_TUNNEL) {
- switch (x->outer_mode.family) {
+ switch (skb_dst(skb)->ops->family) {
case AF_INET:
xo->inner_ipproto = ip_hdr(skb)->protocol;
break;
@@ -772,8 +772,12 @@ int xfrm_output(struct sock *sk, struct sk_buff *skb)
/* Exclusive direct xmit for tunnel mode, as
* some filtering or matching rules may apply
* in transport mode.
+ * Locally generated packets also require
+ * the normal XFRM path for L2 header setup,
+ * as the hardware needs the L2 header to match
+ * for encryption, so skip direct output as well.
*/
- if (x->props.mode == XFRM_MODE_TUNNEL)
+ if (x->props.mode == XFRM_MODE_TUNNEL && !skb->sk)
return xfrm_dev_direct_output(sk, x, skb);
return xfrm_output_resume(sk, skb, 0);
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index d213ca3653a8..9e14e453b55c 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -592,6 +592,7 @@ void xfrm_state_free(struct xfrm_state *x)
}
EXPORT_SYMBOL(xfrm_state_free);
+static void xfrm_state_delete_tunnel(struct xfrm_state *x);
static void xfrm_state_gc_destroy(struct xfrm_state *x)
{
if (x->mode_cbs && x->mode_cbs->destroy_state)
@@ -607,6 +608,7 @@ static void xfrm_state_gc_destroy(struct xfrm_state *x)
kfree(x->replay_esn);
kfree(x->preplay_esn);
xfrm_unset_type_offload(x);
+ xfrm_state_delete_tunnel(x);
if (x->type) {
x->type->destructor(x);
xfrm_put_type(x->type);
@@ -806,7 +808,6 @@ void __xfrm_state_destroy(struct xfrm_state *x)
}
EXPORT_SYMBOL(__xfrm_state_destroy);
-static void xfrm_state_delete_tunnel(struct xfrm_state *x);
int __xfrm_state_delete(struct xfrm_state *x)
{
struct net *net = xs_net(x);
@@ -2073,6 +2074,7 @@ static struct xfrm_state *xfrm_state_clone_and_setup(struct xfrm_state *orig,
return x;
error:
+ x->km.state = XFRM_STATE_DEAD;
xfrm_state_put(x);
out:
return NULL;
@@ -2157,11 +2159,15 @@ struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x,
xfrm_state_insert(xc);
} else {
if (xfrm_state_add(xc) < 0)
- goto error;
+ goto error_add;
}
return xc;
+error_add:
+ if (xuo)
+ xfrm_dev_state_delete(xc);
error:
+ xc->km.state = XFRM_STATE_DEAD;
xfrm_state_put(xc);
return NULL;
}
@@ -2191,14 +2197,18 @@ int xfrm_state_update(struct xfrm_state *x)
}
if (x1->km.state == XFRM_STATE_ACQ) {
- if (x->dir && x1->dir != x->dir)
+ if (x->dir && x1->dir != x->dir) {
+ to_put = x1;
goto out;
+ }
__xfrm_state_insert(x);
x = NULL;
} else {
- if (x1->dir != x->dir)
+ if (x1->dir != x->dir) {
+ to_put = x1;
goto out;
+ }
}
err = 0;
@@ -3298,6 +3308,7 @@ out_bydst:
void xfrm_state_fini(struct net *net)
{
unsigned int sz;
+ int i;
flush_work(&net->xfrm.state_hash_work);
xfrm_state_flush(net, 0, false);
@@ -3305,14 +3316,17 @@ void xfrm_state_fini(struct net *net)
WARN_ON(!list_empty(&net->xfrm.state_all));
+ for (i = 0; i <= net->xfrm.state_hmask; i++) {
+ WARN_ON(!hlist_empty(net->xfrm.state_byseq + i));
+ WARN_ON(!hlist_empty(net->xfrm.state_byspi + i));
+ WARN_ON(!hlist_empty(net->xfrm.state_bysrc + i));
+ WARN_ON(!hlist_empty(net->xfrm.state_bydst + i));
+ }
+
sz = (net->xfrm.state_hmask + 1) * sizeof(struct hlist_head);
- WARN_ON(!hlist_empty(net->xfrm.state_byseq));
xfrm_hash_free(net->xfrm.state_byseq, sz);
- WARN_ON(!hlist_empty(net->xfrm.state_byspi));
xfrm_hash_free(net->xfrm.state_byspi, sz);
- WARN_ON(!hlist_empty(net->xfrm.state_bysrc));
xfrm_hash_free(net->xfrm.state_bysrc, sz);
- WARN_ON(!hlist_empty(net->xfrm.state_bydst));
xfrm_hash_free(net->xfrm.state_bydst, sz);
free_percpu(net->xfrm.state_cache_input);
}
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 010c9e6638c0..403b5ecac2c5 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -947,8 +947,11 @@ static struct xfrm_state *xfrm_state_construct(struct net *net,
if (attrs[XFRMA_SA_PCPU]) {
x->pcpu_num = nla_get_u32(attrs[XFRMA_SA_PCPU]);
- if (x->pcpu_num >= num_possible_cpus())
+ if (x->pcpu_num >= num_possible_cpus()) {
+ err = -ERANGE;
+ NL_SET_ERR_MSG(extack, "pCPU number too big");
goto error;
+ }
}
err = __xfrm_init_state(x, extack);
@@ -3035,6 +3038,9 @@ static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh,
}
xfrm_state_free(x);
+ xfrm_dev_policy_delete(xp);
+ xfrm_dev_policy_free(xp);
+ security_xfrm_policy_free(xp->security);
kfree(xp);
return 0;
generated by cgit v1.2.3 (git 2.0.4) at 2025-11-22 18:07:52 +0000