summaryrefslogtreecommitdiffstats
path: root/net/ipv4
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/bpf_tcp_ca.c2
-rw-r--r--net/ipv4/devinet.c2
-rw-r--r--net/ipv4/fib_frontend.c2
-rw-r--r--net/ipv4/fib_rules.c5
-rw-r--r--net/ipv4/fib_semantics.c4
-rw-r--r--net/ipv4/inet_connection_sock.c2
-rw-r--r--net/ipv4/nexthop.c35
-rw-r--r--net/ipv4/tcp.c3
-rw-r--r--net/ipv4/tcp_cubic.c5
-rw-r--r--net/ipv4/tcp_minisocks.c4
-rw-r--r--net/ipv4/udp.c13
11 files changed, 60 insertions, 17 deletions
diff --git a/net/ipv4/bpf_tcp_ca.c b/net/ipv4/bpf_tcp_ca.c
index 2cf02b4d77fb..4bb9401b0a3f 100644
--- a/net/ipv4/bpf_tcp_ca.c
+++ b/net/ipv4/bpf_tcp_ca.c
@@ -205,6 +205,8 @@ bpf_tcp_ca_get_func_proto(enum bpf_func_id func_id,
offsetof(struct tcp_congestion_ops, release))
return &bpf_sk_getsockopt_proto;
return NULL;
+ case BPF_FUNC_ktime_get_coarse_ns:
+ return &bpf_ktime_get_coarse_ns_proto;
default:
return bpf_base_func_proto(func_id);
}
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index ec73a0d52d3e..323e622ff9b7 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -2591,7 +2591,7 @@ static int __devinet_sysctl_register(struct net *net, char *dev_name,
free:
kfree(t);
out:
- return -ENOBUFS;
+ return -ENOMEM;
}
static void __devinet_sysctl_unregister(struct net *net,
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 9fe13e4f5d08..4d61ddd8a0ec 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1582,7 +1582,7 @@ static int __net_init fib_net_init(struct net *net)
int error;
#ifdef CONFIG_IP_ROUTE_CLASSID
- net->ipv4.fib_num_tclassid_users = 0;
+ atomic_set(&net->ipv4.fib_num_tclassid_users, 0);
#endif
error = ip_fib_net_init(net);
if (error < 0)
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index ce54a30c2ef1..d279cb8ac158 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -141,6 +141,7 @@ INDIRECT_CALLABLE_SCOPE int fib4_rule_action(struct fib_rule *rule,
}
INDIRECT_CALLABLE_SCOPE bool fib4_rule_suppress(struct fib_rule *rule,
+ int flags,
struct fib_lookup_arg *arg)
{
struct fib_result *result = (struct fib_result *) arg->result;
@@ -263,7 +264,7 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
if (tb[FRA_FLOW]) {
rule4->tclassid = nla_get_u32(tb[FRA_FLOW]);
if (rule4->tclassid)
- net->ipv4.fib_num_tclassid_users++;
+ atomic_inc(&net->ipv4.fib_num_tclassid_users);
}
#endif
@@ -295,7 +296,7 @@ static int fib4_rule_delete(struct fib_rule *rule)
#ifdef CONFIG_IP_ROUTE_CLASSID
if (((struct fib4_rule *)rule)->tclassid)
- net->ipv4.fib_num_tclassid_users--;
+ atomic_dec(&net->ipv4.fib_num_tclassid_users);
#endif
net->ipv4.fib_has_custom_rules = true;
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 3364cb9c67e0..fde7797b5806 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -220,7 +220,7 @@ void fib_nh_release(struct net *net, struct fib_nh *fib_nh)
{
#ifdef CONFIG_IP_ROUTE_CLASSID
if (fib_nh->nh_tclassid)
- net->ipv4.fib_num_tclassid_users--;
+ atomic_dec(&net->ipv4.fib_num_tclassid_users);
#endif
fib_nh_common_release(&fib_nh->nh_common);
}
@@ -632,7 +632,7 @@ int fib_nh_init(struct net *net, struct fib_nh *nh,
#ifdef CONFIG_IP_ROUTE_CLASSID
nh->nh_tclassid = cfg->fc_flow;
if (nh->nh_tclassid)
- net->ipv4.fib_num_tclassid_users++;
+ atomic_inc(&net->ipv4.fib_num_tclassid_users);
#endif
#ifdef CONFIG_IP_ROUTE_MULTIPATH
nh->fib_nh_weight = nh_weight;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index f7fea3a7c5e6..62a67fdc344c 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -721,7 +721,7 @@ static struct request_sock *inet_reqsk_clone(struct request_sock *req,
sk_node_init(&nreq_sk->sk_node);
nreq_sk->sk_tx_queue_mapping = req_sk->sk_tx_queue_mapping;
-#ifdef CONFIG_XPS
+#ifdef CONFIG_SOCK_RX_QUEUE_MAPPING
nreq_sk->sk_rx_queue_mapping = req_sk->sk_rx_queue_mapping;
#endif
nreq_sk->sk_incoming_cpu = req_sk->sk_incoming_cpu;
diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c
index 9e8100728d46..5dbd4b5505eb 100644
--- a/net/ipv4/nexthop.c
+++ b/net/ipv4/nexthop.c
@@ -1899,15 +1899,36 @@ static void remove_nexthop(struct net *net, struct nexthop *nh,
/* if any FIB entries reference this nexthop, any dst entries
* need to be regenerated
*/
-static void nh_rt_cache_flush(struct net *net, struct nexthop *nh)
+static void nh_rt_cache_flush(struct net *net, struct nexthop *nh,
+ struct nexthop *replaced_nh)
{
struct fib6_info *f6i;
+ struct nh_group *nhg;
+ int i;
if (!list_empty(&nh->fi_list))
rt_cache_flush(net);
list_for_each_entry(f6i, &nh->f6i_list, nh_list)
ipv6_stub->fib6_update_sernum(net, f6i);
+
+ /* if an IPv6 group was replaced, we have to release all old
+ * dsts to make sure all refcounts are released
+ */
+ if (!replaced_nh->is_group)
+ return;
+
+ /* new dsts must use only the new nexthop group */
+ synchronize_net();
+
+ nhg = rtnl_dereference(replaced_nh->nh_grp);
+ for (i = 0; i < nhg->num_nh; i++) {
+ struct nh_grp_entry *nhge = &nhg->nh_entries[i];
+ struct nh_info *nhi = rtnl_dereference(nhge->nh->nh_info);
+
+ if (nhi->family == AF_INET6)
+ ipv6_stub->fib6_nh_release_dsts(&nhi->fib6_nh);
+ }
}
static int replace_nexthop_grp(struct net *net, struct nexthop *old,
@@ -2247,7 +2268,7 @@ static int replace_nexthop(struct net *net, struct nexthop *old,
err = replace_nexthop_single(net, old, new, extack);
if (!err) {
- nh_rt_cache_flush(net, old);
+ nh_rt_cache_flush(net, old, new);
__remove_nexthop(net, new, NULL);
nexthop_put(new);
@@ -2544,11 +2565,15 @@ static int nh_create_ipv6(struct net *net, struct nexthop *nh,
/* sets nh_dev if successful */
err = ipv6_stub->fib6_nh_init(net, fib6_nh, &fib6_cfg, GFP_KERNEL,
extack);
- if (err)
+ if (err) {
+ /* IPv6 is not enabled, don't call fib6_nh_release */
+ if (err == -EAFNOSUPPORT)
+ goto out;
ipv6_stub->fib6_nh_release(fib6_nh);
- else
+ } else {
nh->nh_flags = fib6_nh->fib_nh_flags;
-
+ }
+out:
return err;
}
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index b7796b4cf0a0..bbb3d39c69af 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1758,6 +1758,9 @@ static skb_frag_t *skb_advance_to_frag(struct sk_buff *skb, u32 offset_skb,
{
skb_frag_t *frag;
+ if (unlikely(offset_skb >= skb->len))
+ return NULL;
+
offset_skb -= skb_headlen(skb);
if ((int)offset_skb < 0 || skb_has_frag_list(skb))
return NULL;
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index 5e9d9c51164c..e07837e23b3f 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -330,8 +330,6 @@ static void cubictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked)
return;
if (tcp_in_slow_start(tp)) {
- if (hystart && after(ack, ca->end_seq))
- bictcp_hystart_reset(sk);
acked = tcp_slow_start(tp, acked);
if (!acked)
return;
@@ -391,6 +389,9 @@ static void hystart_update(struct sock *sk, u32 delay)
struct bictcp *ca = inet_csk_ca(sk);
u32 threshold;
+ if (after(tp->snd_una, ca->end_seq))
+ bictcp_hystart_reset(sk);
+
if (hystart_detect & HYSTART_ACK_TRAIN) {
u32 now = bictcp_clock_us(sk);
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index cf913a66df17..7c2d3ac2363a 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -829,8 +829,8 @@ int tcp_child_process(struct sock *parent, struct sock *child,
int ret = 0;
int state = child->sk_state;
- /* record NAPI ID of child */
- sk_mark_napi_id(child, skb);
+ /* record sk_napi_id and sk_rx_queue_mapping of child. */
+ sk_mark_napi_id_set(child, skb);
tcp_segs_in(tcp_sk(child), skb);
if (!sock_owned_by_user(child)) {
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 319dd7bbfe33..23b05e28490b 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -916,7 +916,7 @@ static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4,
kfree_skb(skb);
return -EINVAL;
}
- if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) {
+ if (datalen > cork->gso_size * UDP_MAX_SEGMENTS) {
kfree_skb(skb);
return -EINVAL;
}
@@ -1807,6 +1807,17 @@ int udp_read_sock(struct sock *sk, read_descriptor_t *desc,
skb = skb_recv_udp(sk, 0, 1, &err);
if (!skb)
return err;
+
+ if (udp_lib_checksum_complete(skb)) {
+ __UDP_INC_STATS(sock_net(sk), UDP_MIB_CSUMERRORS,
+ IS_UDPLITE(sk));
+ __UDP_INC_STATS(sock_net(sk), UDP_MIB_INERRORS,
+ IS_UDPLITE(sk));
+ atomic_inc(&sk->sk_drops);
+ kfree_skb(skb);
+ continue;
+ }
+
used = recv_actor(desc, skb, 0, skb->len);
if (used <= 0) {
if (!copied)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 21:21:58 +0100