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authorDavid S. Miller <davem@davemloft.net>2018-07-08 13:06:55 +0900
committerDavid S. Miller <davem@davemloft.net>2018-07-08 13:06:55 +0900
commit7f93d1295131c9a8b6ff5eec13eef094f0d42921 (patch)
treeda6197820c36c00397f1043bceb3175e5476bfa4 /include
parentipfrag: really prevent allocation on netns exit (diff)
parentxdp: XDP_REDIRECT should check IFF_UP and MTU (diff)
downloadlinux-dev-7f93d1295131c9a8b6ff5eec13eef094f0d42921.tar.xz
linux-dev-7f93d1295131c9a8b6ff5eec13eef094f0d42921.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says: ==================== pull-request: bpf 2018-07-07 The following pull-request contains BPF updates for your *net* tree. Plenty of fixes for different components: 1) A set of critical fixes for sockmap and sockhash, from John Fastabend. 2) fixes for several race conditions in af_xdp, from Magnus Karlsson. 3) hash map refcnt fix, from Mauricio Vasquez. 4) samples/bpf fixes, from Taeung Song. 5) ifup+mtu check for xdp_redirect, from Toshiaki Makita. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/filter.h6
-rw-r--r--include/net/tcp.h4
-rw-r--r--include/net/xdp_sock.h4
3 files changed, 11 insertions, 3 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 300baad62c88..c73dd7396886 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -765,8 +765,8 @@ static inline bool bpf_dump_raw_ok(void)
struct bpf_prog *bpf_patch_insn_single(struct bpf_prog *prog, u32 off,
const struct bpf_insn *patch, u32 len);
-static inline int __xdp_generic_ok_fwd_dev(struct sk_buff *skb,
- struct net_device *fwd)
+static inline int xdp_ok_fwd_dev(const struct net_device *fwd,
+ unsigned int pktlen)
{
unsigned int len;
@@ -774,7 +774,7 @@ static inline int __xdp_generic_ok_fwd_dev(struct sk_buff *skb,
return -ENETDOWN;
len = fwd->mtu + fwd->hard_header_len + VLAN_HLEN;
- if (skb->len > len)
+ if (pktlen > len)
return -EMSGSIZE;
return 0;
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 800582b5dd54..af3ec72d5d41 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -828,6 +828,10 @@ struct tcp_skb_cb {
#define TCP_SKB_CB(__skb) ((struct tcp_skb_cb *)&((__skb)->cb[0]))
+static inline void bpf_compute_data_end_sk_skb(struct sk_buff *skb)
+{
+ TCP_SKB_CB(skb)->bpf.data_end = skb->data + skb_headlen(skb);
+}
#if IS_ENABLED(CONFIG_IPV6)
/* This is the variant of inet6_iif() that must be used by TCP,
diff --git a/include/net/xdp_sock.h b/include/net/xdp_sock.h
index 9fe472f2ac95..7161856bcf9c 100644
--- a/include/net/xdp_sock.h
+++ b/include/net/xdp_sock.h
@@ -60,6 +60,10 @@ struct xdp_sock {
bool zc;
/* Protects multiple processes in the control path */
struct mutex mutex;
+ /* Mutual exclusion of NAPI TX thread and sendmsg error paths
+ * in the SKB destructor callback.
+ */
+ spinlock_t tx_completion_lock;
u64 rx_dropped;
};