UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

Here are some batman-adv bugfixes: 

- Fix issues with adjusted MTUs (2 patches), by Sven Eckelmann
 
  - Fix header access for memory reallocation case, by Remi Pommarel
 
  - Fix two memory leaks (2 patches), by Remi Pommarel
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCgA0FiEE1ilQI7G+y+fdhnrfoSvjmEKSnqEFAmTc+eYWHHN3QHNpbW9u
 d3VuZGVybGljaC5kZQAKCRChK+OYQpKeobgFD/9oBvQKj9rObbnHIgxe3ZZ4x4po
 FOln4eLv83YZwVP54BC0X8COymO+gd3tBbGg9U1s9kpn+hIOXi7zI8xnmS/jrKGB
 t8tDQ/1S9laCfanfDoHDdQ96ifJfQR6Mp7ZH1e64L22Ag5hKjVoGeQp2Mf5X2S+S
 7ZFdhofr/ZNi0Tz4Y+Jw9bh3W5TMnwSFfexSIfUJmh+06RGRRspOx2WbbgArMs12
 hP4UST0cIfIr0CinBQz+LiyT90GgC6r+xjkQrP3LgzYegC7eBW+bQxLgCtnk+Hic
 +t+aS3SnityZzFyaNJrULX7/u8WJumW4udu0jDl9raAWIJBUV5pNr7sNagQ45mvE
 NZ4/VnWGg6MnjdPC6CIuU6AuCLZYn1NiE6mp1vuFxMpqmiJUhMjwjTp8DaLpQZCV
 vDYca/bBuDMbTIl5LxQ965svbNVDiAS6gNHbrVs2k3bq3Ji7QS1M7MVR3npehGT0
 xInqQNO7QJ0c+/PaFMTZwi0LKk8qwvHLggsZyKXJ6i6YBH7YG1LTbEtqLT7rH3nv
 sHfTyPzw7b0oFh7/rSMzvf1P9yiMG1ZCY622uhU1M+CxA2Axr1Lcq1yc3umDP4Ds
 BM3JKilHsj/mM7g/HobBs7eg+BL9/KjNKFbj12Bc0xV7IXC4SNTlKSJUN0ZlGSsH
 RP7dNXOzS0LUErpARw==
 =EsR1
 -----END PGP SIGNATURE-----

Merge tag 'batadv-net-pullrequest-20230816' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
Here are some batman-adv bugfixes:

 - Fix issues with adjusted MTUs (2 patches), by Sven Eckelmann

 - Fix header access for memory reallocation case, by Remi Pommarel

 - Fix two memory leaks (2 patches), by Remi Pommarel

* tag 'batadv-net-pullrequest-20230816' of git://git.open-mesh.org/linux-merge:
  batman-adv: Fix batadv_v_ogm_aggr_send memory leak
  batman-adv: Fix TT global entry leak when client roamed back
  batman-adv: Do not get eth header before batadv_check_management_packet
  batman-adv: Don't increase MTU when set by user
  batman-adv: Trigger events for auto adjusted MTU
====================

Link: https://lore.kernel.org/r/20230816163318.189996-1-sw@simonwunderlich.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2023-08-18 15:16:04 -07:00
parent 0e8860d212 421d467dc2
commit 7793a88e88
6 changed files with 29 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
net/batman-adv/bat_v_elp.c
View File

@ -505,7 +505,7 @@ int batadv_v_elp_packet_recv(struct sk_buff *skb,
struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct batadv_elp_packet *elp_packet;
struct batadv_hard_iface *primary_if;
struct ethhdr *ethhdr = (struct ethhdr *)skb_mac_header(skb);
struct ethhdr *ethhdr;
bool res;
int ret = NET_RX_DROP;
@ -513,6 +513,7 @@ int batadv_v_elp_packet_recv(struct sk_buff *skb,
if (!res)
goto free_skb;
ethhdr = eth_hdr(skb);
if (batadv_is_my_mac(bat_priv, ethhdr->h_source))
goto free_skb;

7
net/batman-adv/bat_v_ogm.c
View File

@ -123,8 +123,10 @@ static void batadv_v_ogm_send_to_if(struct sk_buff *skb,
{
struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
if (hard_iface->if_status != BATADV_IF_ACTIVE)
if (hard_iface->if_status != BATADV_IF_ACTIVE) {
kfree_skb(skb);
return;
}
batadv_inc_counter(bat_priv, BATADV_CNT_MGMT_TX);
batadv_add_counter(bat_priv, BATADV_CNT_MGMT_TX_BYTES,
@ -985,7 +987,7 @@ int batadv_v_ogm_packet_recv(struct sk_buff *skb,
{
struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct batadv_ogm2_packet *ogm_packet;
struct ethhdr *ethhdr = eth_hdr(skb);
struct ethhdr *ethhdr;
int ogm_offset;
u8 *packet_pos;
int ret = NET_RX_DROP;
@ -999,6 +1001,7 @@ int batadv_v_ogm_packet_recv(struct sk_buff *skb,
if (!batadv_check_management_packet(skb, if_incoming, BATADV_OGM2_HLEN))
goto free_skb;
ethhdr = eth_hdr(skb);
if (batadv_is_my_mac(bat_priv, ethhdr->h_source))
goto free_skb;

14
net/batman-adv/hard-interface.c
View File

@ -630,7 +630,19 @@ out:
*/
void batadv_update_min_mtu(struct net_device *soft_iface)
{
soft_iface->mtu = batadv_hardif_min_mtu(soft_iface);
struct batadv_priv *bat_priv = netdev_priv(soft_iface);
int limit_mtu;
int mtu;
mtu = batadv_hardif_min_mtu(soft_iface);
if (bat_priv->mtu_set_by_user)
limit_mtu = bat_priv->mtu_set_by_user;
else
limit_mtu = ETH_DATA_LEN;
mtu = min(mtu, limit_mtu);
dev_set_mtu(soft_iface, mtu);
/* Check if the local translate table should be cleaned up to match a
* new (and smaller) MTU.

3
net/batman-adv/soft-interface.c
View File

@ -153,11 +153,14 @@ static int batadv_interface_set_mac_addr(struct net_device *dev, void *p)
static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu)
{
struct batadv_priv *bat_priv = netdev_priv(dev);
/* check ranges */
if (new_mtu < 68 || new_mtu > batadv_hardif_min_mtu(dev))
return -EINVAL;
dev->mtu = new_mtu;
bat_priv->mtu_set_by_user = new_mtu;
return 0;
}

1
net/batman-adv/translation-table.c
View File

@ -774,7 +774,6 @@ check_roaming:
if (roamed_back) {
batadv_tt_global_free(bat_priv, tt_global,
"Roaming canceled");
tt_global = NULL;
} else {
/* The global entry has to be marked as ROAMING and
* has to be kept for consistency purpose

6
net/batman-adv/types.h
View File

@ -1546,6 +1546,12 @@ struct batadv_priv {
/** @soft_iface: net device which holds this struct as private data */
struct net_device *soft_iface;
/**
* @mtu_set_by_user: MTU was set once by user
* protected by rtnl_lock
*/
int mtu_set_by_user;
/**
* @bat_counters: mesh internal traffic statistic counters (see
* batadv_counters)