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authorDavid S. Miller <davem@davemloft.net>2020-07-25 17:49:04 -0700
committerDavid S. Miller <davem@davemloft.net>2020-07-25 17:49:04 -0700
commita57066b1a01977a646145f4ce8dfb4538b08368a (patch)
tree57c2b4fa2fc48e687a1820b9bf4ef4f4363be0f9 /net/hsr
parentdfecd3e00cd32b2a6d1cfdb30b513dd42575ada3 (diff)
parent04300d66f0a06d572d9f2ad6768c38cabde22179 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
The UDP reuseport conflict was a little bit tricky. The net-next code, via bpf-next, extracted the reuseport handling into a helper so that the BPF sk lookup code could invoke it. At the same time, the logic for reuseport handling of unconnected sockets changed via commit efc6b6f6c3113e8b203b9debfb72d81e0f3dcace which changed the logic to carry on the reuseport result into the rest of the lookup loop if we do not return immediately. This requires moving the reuseport_has_conns() logic into the callers. While we are here, get rid of inline directives as they do not belong in foo.c files. The other changes were cases of more straightforward overlapping modifications. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/hsr')
-rw-r--r--net/hsr/hsr_forward.c18
-rw-r--r--net/hsr/hsr_framereg.c3
2 files changed, 15 insertions, 6 deletions
diff --git a/net/hsr/hsr_forward.c b/net/hsr/hsr_forward.c
index 92c8ad75200b..ab8dca0c0b65 100644
--- a/net/hsr/hsr_forward.c
+++ b/net/hsr/hsr_forward.c
@@ -120,13 +120,18 @@ static struct sk_buff *frame_get_stripped_skb(struct hsr_frame_info *frame,
return skb_clone(frame->skb_std, GFP_ATOMIC);
}
-static void hsr_fill_tag(struct sk_buff *skb, struct hsr_frame_info *frame,
- struct hsr_port *port, u8 proto_version)
+static struct sk_buff *hsr_fill_tag(struct sk_buff *skb,
+ struct hsr_frame_info *frame,
+ struct hsr_port *port, u8 proto_version)
{
struct hsr_ethhdr *hsr_ethhdr;
int lane_id;
int lsdu_size;
+ /* pad to minimum packet size which is 60 + 6 (HSR tag) */
+ if (skb_put_padto(skb, ETH_ZLEN + HSR_HLEN))
+ return NULL;
+
if (port->type == HSR_PT_SLAVE_A)
lane_id = 0;
else
@@ -144,6 +149,8 @@ static void hsr_fill_tag(struct sk_buff *skb, struct hsr_frame_info *frame,
hsr_ethhdr->hsr_tag.encap_proto = hsr_ethhdr->ethhdr.h_proto;
hsr_ethhdr->ethhdr.h_proto = htons(proto_version ?
ETH_P_HSR : ETH_P_PRP);
+
+ return skb;
}
static struct sk_buff *create_tagged_skb(struct sk_buff *skb_o,
@@ -172,9 +179,10 @@ static struct sk_buff *create_tagged_skb(struct sk_buff *skb_o,
memmove(dst, src, movelen);
skb_reset_mac_header(skb);
- hsr_fill_tag(skb, frame, port, port->hsr->prot_version);
-
- return skb;
+ /* skb_put_padto free skb on error and hsr_fill_tag returns NULL in
+ * that case
+ */
+ return hsr_fill_tag(skb, frame, port, port->hsr->prot_version);
}
/* If the original frame was an HSR tagged frame, just clone it to be sent
diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 03b891904314..530de24b1fb5 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -325,7 +325,8 @@ void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
if (port->type != node_dst->addr_B_port)
return;
- ether_addr_copy(eth_hdr(skb)->h_dest, node_dst->macaddress_B);
+ if (is_valid_ether_addr(node_dst->macaddress_B))
+ ether_addr_copy(eth_hdr(skb)->h_dest, node_dst->macaddress_B);
}
void hsr_register_frame_in(struct hsr_node *node, struct hsr_port *port,