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authorDavid S. Miller <davem@davemloft.net>2021-04-25 18:02:32 -0700
committerDavid S. Miller <davem@davemloft.net>2021-04-25 18:02:32 -0700
commit5f6c2f536de648ac31564d8c413337ff4f7af93a (patch)
tree37360317224f4d60619976d284b66aa7a9ddf08a /net
parentb2f0ca00e6b34bd57c9298a869ea133699e8ec39 (diff)
parent350a62ca065be252ababc43a7c96f8aca390a18f (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says: ==================== pull-request: bpf-next 2021-04-23 The following pull-request contains BPF updates for your *net-next* tree. We've added 69 non-merge commits during the last 22 day(s) which contain a total of 69 files changed, 3141 insertions(+), 866 deletions(-). The main changes are: 1) Add BPF static linker support for extern resolution of global, from Andrii. 2) Refine retval for bpf_get_task_stack helper, from Dave. 3) Add a bpf_snprintf helper, from Florent. 4) A bunch of miscellaneous improvements from many developers. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/dev.c6
-rw-r--r--net/core/sock_map.c5
-rw-r--r--net/ipv4/tcp_bpf.c3
-rw-r--r--net/ipv4/udp_bpf.c5
-rw-r--r--net/xdp/xsk.c2
5 files changed, 11 insertions, 10 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index d9bf63dbe4fd..eed028aec6a4 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4723,10 +4723,10 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb,
void *orig_data, *orig_data_end, *hard_start;
struct netdev_rx_queue *rxqueue;
u32 metalen, act = XDP_DROP;
+ bool orig_bcast, orig_host;
u32 mac_len, frame_sz;
__be16 orig_eth_type;
struct ethhdr *eth;
- bool orig_bcast;
int off;
/* Reinjected packets coming from act_mirred or similar should
@@ -4773,6 +4773,7 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb,
orig_data_end = xdp->data_end;
orig_data = xdp->data;
eth = (struct ethhdr *)xdp->data;
+ orig_host = ether_addr_equal_64bits(eth->h_dest, skb->dev->dev_addr);
orig_bcast = is_multicast_ether_addr_64bits(eth->h_dest);
orig_eth_type = eth->h_proto;
@@ -4800,8 +4801,11 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb,
/* check if XDP changed eth hdr such SKB needs update */
eth = (struct ethhdr *)xdp->data;
if ((orig_eth_type != eth->h_proto) ||
+ (orig_host != ether_addr_equal_64bits(eth->h_dest,
+ skb->dev->dev_addr)) ||
(orig_bcast != is_multicast_ether_addr_64bits(eth->h_dest))) {
__skb_push(skb, ETH_HLEN);
+ skb->pkt_type = PACKET_HOST;
skb->protocol = eth_type_trans(skb, skb->dev);
}
diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index 3d190d22b0d8..6f1b82b8ad49 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -188,7 +188,7 @@ static int sock_map_init_proto(struct sock *sk, struct sk_psock *psock)
if (!sk->sk_prot->psock_update_sk_prot)
return -EINVAL;
psock->psock_update_sk_prot = sk->sk_prot->psock_update_sk_prot;
- return sk->sk_prot->psock_update_sk_prot(sk, false);
+ return sk->sk_prot->psock_update_sk_prot(sk, psock, false);
}
static struct sk_psock *sock_map_psock_get_checked(struct sock *sk)
@@ -1521,7 +1521,7 @@ void sock_map_close(struct sock *sk, long timeout)
lock_sock(sk);
rcu_read_lock();
- psock = sk_psock(sk);
+ psock = sk_psock_get(sk);
if (unlikely(!psock)) {
rcu_read_unlock();
release_sock(sk);
@@ -1532,6 +1532,7 @@ void sock_map_close(struct sock *sk, long timeout)
sock_map_remove_links(sk, psock);
rcu_read_unlock();
sk_psock_stop(psock, true);
+ sk_psock_put(sk, psock);
release_sock(sk);
saved_close(sk, timeout);
}
diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index 4f49c12dae53..ad9d17923fc5 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -499,9 +499,8 @@ static int tcp_bpf_assert_proto_ops(struct proto *ops)
ops->sendpage == tcp_sendpage ? 0 : -ENOTSUPP;
}
-int tcp_bpf_update_proto(struct sock *sk, bool restore)
+int tcp_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore)
{
- struct sk_psock *psock = sk_psock(sk);
int family = sk->sk_family == AF_INET6 ? TCP_BPF_IPV6 : TCP_BPF_IPV4;
int config = psock->progs.msg_parser ? TCP_BPF_TX : TCP_BPF_BASE;
diff --git a/net/ipv4/udp_bpf.c b/net/ipv4/udp_bpf.c
index 7d5c4ebf42fe..954c4591a6fd 100644
--- a/net/ipv4/udp_bpf.c
+++ b/net/ipv4/udp_bpf.c
@@ -103,14 +103,12 @@ static int __init udp_bpf_v4_build_proto(void)
}
core_initcall(udp_bpf_v4_build_proto);
-int udp_bpf_update_proto(struct sock *sk, bool restore)
+int udp_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore)
{
int family = sk->sk_family == AF_INET ? UDP_BPF_IPV4 : UDP_BPF_IPV6;
- struct sk_psock *psock = sk_psock(sk);
if (restore) {
sk->sk_write_space = psock->saved_write_space;
- /* Pairs with lockless read in sk_clone_lock() */
WRITE_ONCE(sk->sk_prot, psock->sk_proto);
return 0;
}
@@ -118,7 +116,6 @@ int udp_bpf_update_proto(struct sock *sk, bool restore)
if (sk->sk_family == AF_INET6)
udp_bpf_check_v6_needs_rebuild(psock->sk_proto);
- /* Pairs with lockless read in sk_clone_lock() */
WRITE_ONCE(sk->sk_prot, &udp_bpf_prots[family]);
return 0;
}
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index a71ed664da0a..cd62d4ba87a9 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -30,7 +30,7 @@
#include "xdp_umem.h"
#include "xsk.h"
-#define TX_BATCH_SIZE 16
+#define TX_BATCH_SIZE 32
static DEFINE_PER_CPU(struct list_head, xskmap_flush_list);