diff options
Diffstat (limited to 'net/batman-adv/main.c')
| -rw-r--r-- | net/batman-adv/main.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c index 5fc754b0b3f7..333e947afcce 100644 --- a/net/batman-adv/main.c +++ b/net/batman-adv/main.c @@ -14,7 +14,6 @@ #include <linux/crc32c.h> #include <linux/device.h> #include <linux/errno.h> -#include <linux/genetlink.h> #include <linux/gfp.h> #include <linux/if_ether.h> #include <linux/if_vlan.h> @@ -38,6 +37,7 @@ #include <linux/string.h> #include <linux/workqueue.h> #include <net/dsfield.h> +#include <net/genetlink.h> #include <net/rtnetlink.h> #include <uapi/linux/batadv_packet.h> #include <uapi/linux/batman_adv.h> @@ -637,6 +637,13 @@ unsigned short batadv_get_vid(struct sk_buff *skb, size_t header_len) vhdr = (struct vlan_ethhdr *)(skb->data + header_len); vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; + + /* VID 0 is only used to indicate "priority tag" frames which only + * contain priority information and no VID. + */ + if (vid == 0) + return BATADV_NO_FLAGS; + vid |= BATADV_VLAN_HAS_TAG; return vid; @@ -691,29 +698,31 @@ int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type, "%s%s", BATADV_UEV_TYPE_VAR, batadv_uev_type_str[type]); if (!uevent_env[0]) - goto out; + goto report_error; uevent_env[1] = kasprintf(GFP_ATOMIC, "%s%s", BATADV_UEV_ACTION_VAR, batadv_uev_action_str[action]); if (!uevent_env[1]) - goto out; + goto free_first_env; /* If the event is DEL, ignore the data field */ if (action != BATADV_UEV_DEL) { uevent_env[2] = kasprintf(GFP_ATOMIC, "%s%s", BATADV_UEV_DATA_VAR, data); if (!uevent_env[2]) - goto out; + goto free_second_env; } ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env); -out: - kfree(uevent_env[0]); - kfree(uevent_env[1]); kfree(uevent_env[2]); +free_second_env: + kfree(uevent_env[1]); +free_first_env: + kfree(uevent_env[0]); if (ret) +report_error: batadv_dbg(BATADV_DBG_BATMAN, bat_priv, "Impossible to send uevent for (%s,%s,%s) event (err: %d)\n", batadv_uev_type_str[type], |