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70 lines
2.0 KiB
Diff
70 lines
2.0 KiB
Diff
--- a/include/linux/nl80211.h
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+++ b/include/linux/nl80211.h
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@@ -584,6 +584,8 @@ enum nl80211_commands {
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* changed then the list changed and the dump should be repeated
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* completely from scratch.
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*
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+ * @NL80211_ATTR_4ADDR: Use 4-address frames on a virtual interface
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+ *
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* @NL80211_ATTR_MAX: highest attribute number currently defined
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* @__NL80211_ATTR_AFTER_LAST: internal use
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*/
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@@ -714,6 +716,8 @@ enum nl80211_attrs {
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NL80211_ATTR_PID,
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+ NL80211_ATTR_4ADDR,
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+
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/* add attributes here, update the policy in nl80211.c */
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__NL80211_ATTR_AFTER_LAST,
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--- a/include/net/cfg80211.h
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+++ b/include/net/cfg80211.h
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@@ -207,10 +207,12 @@ struct ieee80211_supported_band {
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* struct vif_params - describes virtual interface parameters
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* @mesh_id: mesh ID to use
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* @mesh_id_len: length of the mesh ID
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+ * @use_4addr: use 4-address frames
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*/
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struct vif_params {
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u8 *mesh_id;
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int mesh_id_len;
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+ int use_4addr;
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};
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/**
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--- a/net/wireless/nl80211.c
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+++ b/net/wireless/nl80211.c
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@@ -140,6 +140,7 @@ static struct nla_policy nl80211_policy[
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[NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
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[NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
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[NL80211_ATTR_PID] = { .type = NLA_U32 },
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+ [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
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};
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/* policy for the attributes */
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@@ -989,6 +990,13 @@ static int nl80211_set_interface(struct
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change = true;
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}
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+ if (info->attrs[NL80211_ATTR_4ADDR]) {
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+ params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
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+ change = true;
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+ } else {
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+ params.use_4addr = -1;
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+ }
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+
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if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
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if (ntype != NL80211_IFTYPE_MONITOR) {
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err = -EINVAL;
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@@ -1055,6 +1063,9 @@ static int nl80211_new_interface(struct
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params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
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}
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+ if (info->attrs[NL80211_ATTR_4ADDR])
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+ params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
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+
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err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
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info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
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&flags);
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