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nl80211: add a parameter for using 4-address frames on virtual interfaces 

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2009-11-10 18:53:10 +01:00 committed by John W. Linville
parent 1460dd158a
commit 8b787643ca
3 changed files with 17 additions and 0 deletions
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4
include/linux/nl80211.h
View File

@ -584,6 +584,8 @@ enum nl80211_commands {
* changed then the list changed and the dump should be repeated
* completely from scratch.
*
* @NL80211_ATTR_4ADDR: Use 4-address frames on a virtual interface
*
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@ -714,6 +716,8 @@ enum nl80211_attrs {
NL80211_ATTR_PID,
NL80211_ATTR_4ADDR,
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,

2
include/net/cfg80211.h
View File

@ -206,10 +206,12 @@ struct ieee80211_supported_band {
* struct vif_params - describes virtual interface parameters
* @mesh_id: mesh ID to use
* @mesh_id_len: length of the mesh ID
* @use_4addr: use 4-address frames
*/
struct vif_params {
u8 *mesh_id;
int mesh_id_len;
int use_4addr;
};
/**

11
net/wireless/nl80211.c
View File

@ -138,6 +138,7 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
[NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
[NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
[NL80211_ATTR_PID] = { .type = NLA_U32 },
[NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
};
/* policy for the attributes */
@ -987,6 +988,13 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
change = true;
}
if (info->attrs[NL80211_ATTR_4ADDR]) {
params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
change = true;
} else {
params.use_4addr = -1;
}
if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
if (ntype != NL80211_IFTYPE_MONITOR) {
err = -EINVAL;
@ -1053,6 +1061,9 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
}
if (info->attrs[NL80211_ATTR_4ADDR])
params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
&flags);