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authorDavid S. Miller <davem@davemloft.net>2018-03-23 11:24:57 -0400
committerDavid S. Miller <davem@davemloft.net>2018-03-23 11:31:58 -0400
commit03fe2debbb2771fb90881e4ce8109b09cf772a5c (patch)
treefbaf8738296b2e9dcba81c6daef2d515b6c4948c /net/batman-adv/routing.c
parent6686c459e1449a3ee5f3fd313b0a559ace7a700e (diff)
parentf36b7534b83357cf52e747905de6d65b4f7c2512 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Fun set of conflict resolutions here... For the mac80211 stuff, these were fortunately just parallel adds. Trivially resolved. In drivers/net/phy/phy.c we had a bug fix in 'net' that moved the function phy_disable_interrupts() earlier in the file, whilst in 'net-next' the phy_error() call from this function was removed. In net/ipv4/xfrm4_policy.c, David Ahern's changes to remove the 'rt_table_id' member of rtable collided with a bug fix in 'net' that added a new struct member "rt_mtu_locked" which needs to be copied over here. The mlxsw driver conflict consisted of net-next separating the span code and definitions into separate files, whilst a 'net' bug fix made some changes to that moved code. The mlx5 infiniband conflict resolution was quite non-trivial, the RDMA tree's merge commit was used as a guide here, and here are their notes: ==================== Due to bug fixes found by the syzkaller bot and taken into the for-rc branch after development for the 4.17 merge window had already started being taken into the for-next branch, there were fairly non-trivial merge issues that would need to be resolved between the for-rc branch and the for-next branch. This merge resolves those conflicts and provides a unified base upon which ongoing development for 4.17 can be based. Conflicts: drivers/infiniband/hw/mlx5/main.c - Commit 42cea83f9524 (IB/mlx5: Fix cleanup order on unload) added to for-rc and commit b5ca15ad7e61 (IB/mlx5: Add proper representors support) add as part of the devel cycle both needed to modify the init/de-init functions used by mlx5. To support the new representors, the new functions added by the cleanup patch needed to be made non-static, and the init/de-init list added by the representors patch needed to be modified to match the init/de-init list changes made by the cleanup patch. Updates: drivers/infiniband/hw/mlx5/mlx5_ib.h - Update function prototypes added by representors patch to reflect new function names as changed by cleanup patch drivers/infiniband/hw/mlx5/ib_rep.c - Update init/de-init stage list to match new order from cleanup patch ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/batman-adv/routing.c')
-rw-r--r--net/batman-adv/routing.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 289df027ecdd..cc3ed93a6d51 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -759,6 +759,7 @@ free_skb:
/**
* batadv_reroute_unicast_packet() - update the unicast header for re-routing
* @bat_priv: the bat priv with all the soft interface information
+ * @skb: unicast packet to process
* @unicast_packet: the unicast header to be updated
* @dst_addr: the payload destination
* @vid: VLAN identifier
@@ -770,7 +771,7 @@ free_skb:
* Return: true if the packet header has been updated, false otherwise
*/
static bool
-batadv_reroute_unicast_packet(struct batadv_priv *bat_priv,
+batadv_reroute_unicast_packet(struct batadv_priv *bat_priv, struct sk_buff *skb,
struct batadv_unicast_packet *unicast_packet,
u8 *dst_addr, unsigned short vid)
{
@@ -799,8 +800,10 @@ batadv_reroute_unicast_packet(struct batadv_priv *bat_priv,
}
/* update the packet header */
+ skb_postpull_rcsum(skb, unicast_packet, sizeof(*unicast_packet));
ether_addr_copy(unicast_packet->dest, orig_addr);
unicast_packet->ttvn = orig_ttvn;
+ skb_postpush_rcsum(skb, unicast_packet, sizeof(*unicast_packet));
ret = true;
out:
@@ -841,7 +844,7 @@ static bool batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
* the packet to
*/
if (batadv_tt_local_client_is_roaming(bat_priv, ethhdr->h_dest, vid)) {
- if (batadv_reroute_unicast_packet(bat_priv, unicast_packet,
+ if (batadv_reroute_unicast_packet(bat_priv, skb, unicast_packet,
ethhdr->h_dest, vid))
batadv_dbg_ratelimited(BATADV_DBG_TT,
bat_priv,
@@ -887,7 +890,7 @@ static bool batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
* destination can possibly be updated and forwarded towards the new
* target host
*/
- if (batadv_reroute_unicast_packet(bat_priv, unicast_packet,
+ if (batadv_reroute_unicast_packet(bat_priv, skb, unicast_packet,
ethhdr->h_dest, vid)) {
batadv_dbg_ratelimited(BATADV_DBG_TT, bat_priv,
"Rerouting unicast packet to %pM (dst=%pM): TTVN mismatch old_ttvn=%u new_ttvn=%u\n",
@@ -910,12 +913,14 @@ static bool batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
if (!primary_if)
return false;
+ /* update the packet header */
+ skb_postpull_rcsum(skb, unicast_packet, sizeof(*unicast_packet));
ether_addr_copy(unicast_packet->dest, primary_if->net_dev->dev_addr);
+ unicast_packet->ttvn = curr_ttvn;
+ skb_postpush_rcsum(skb, unicast_packet, sizeof(*unicast_packet));
batadv_hardif_put(primary_if);
- unicast_packet->ttvn = curr_ttvn;
-
return true;
}
@@ -968,14 +973,10 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
struct batadv_orig_node *orig_node = NULL, *orig_node_gw = NULL;
int check, hdr_size = sizeof(*unicast_packet);
enum batadv_subtype subtype;
- struct ethhdr *ethhdr;
int ret = NET_RX_DROP;
bool is4addr, is_gw;
unicast_packet = (struct batadv_unicast_packet *)skb->data;
- unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;
- ethhdr = eth_hdr(skb);
-
is4addr = unicast_packet->packet_type == BATADV_UNICAST_4ADDR;
/* the caller function should have already pulled 2 bytes */
if (is4addr)
@@ -995,12 +996,14 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
if (!batadv_check_unicast_ttvn(bat_priv, skb, hdr_size))
goto free_skb;
+ unicast_packet = (struct batadv_unicast_packet *)skb->data;
+
/* packet for me */
if (batadv_is_my_mac(bat_priv, unicast_packet->dest)) {
/* If this is a unicast packet from another backgone gw,
* drop it.
*/
- orig_addr_gw = ethhdr->h_source;
+ orig_addr_gw = eth_hdr(skb)->h_source;
orig_node_gw = batadv_orig_hash_find(bat_priv, orig_addr_gw);
if (orig_node_gw) {
is_gw = batadv_bla_is_backbone_gw(skb, orig_node_gw,
@@ -1015,6 +1018,8 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
}
if (is4addr) {
+ unicast_4addr_packet =
+ (struct batadv_unicast_4addr_packet *)skb->data;
subtype = unicast_4addr_packet->subtype;
batadv_dat_inc_counter(bat_priv, subtype);