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cfg80211: Userspace may inform kernel of mesh auth method.

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Authentication takes place in userspace, but the beacon is
generated in the kernel.  Allow userspace to inform the
kernel of the authentication method so the appropriate
mesh config IE can be set prior to beacon generation when
joining the MBSS.

Signed-off-by: Colleen Twitty <colleen@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Colleen Twitty 2013-05-08 11:45:59 -07:00 committed by Johannes Berg
parent 7ade703604
commit 6e16d90b52
4 changed files with 16 additions and 0 deletions
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2
include/net/cfg80211.h
View File

@ -1161,6 +1161,7 @@ struct mesh_config {
* @sync_method: which synchronization method to use
* @path_sel_proto: which path selection protocol to use
* @path_metric: which metric to use
* @auth_id: which authentication method this mesh is using
* @ie: vendor information elements (optional)
* @ie_len: length of vendor information elements
* @is_authenticated: this mesh requires authentication
@ -1179,6 +1180,7 @@ struct mesh_setup {
u8 sync_method;
u8 path_sel_proto;
u8 path_metric;
u8 auth_id;
const u8 *ie;
u8 ie_len;
bool is_authenticated;

5
include/uapi/linux/nl80211.h
View File

@ -2645,6 +2645,10 @@ enum nl80211_meshconf_params {
* @NL80211_MESH_SETUP_USERSPACE_MPM: Enable this option if userspace will
* implement an MPM which handles peer allocation and state.
*
* @NL80211_MESH_SETUP_AUTH_PROTOCOL: Inform the kernel of the authentication
* method (u8, as defined in IEEE 8.4.2.100.6, e.g. 0x1 for SAE).
* Default is no authentication method required.
*
* @NL80211_MESH_SETUP_ATTR_MAX: highest possible mesh setup attribute number
*
* @__NL80211_MESH_SETUP_ATTR_AFTER_LAST: Internal use
@ -2658,6 +2662,7 @@ enum nl80211_mesh_setup_params {
NL80211_MESH_SETUP_USERSPACE_AMPE,
NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC,
NL80211_MESH_SETUP_USERSPACE_MPM,
NL80211_MESH_SETUP_AUTH_PROTOCOL,
/* keep last */
__NL80211_MESH_SETUP_ATTR_AFTER_LAST,

1
net/wireless/mesh.c
View File

@ -82,6 +82,7 @@ const struct mesh_setup default_mesh_setup = {
.sync_method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET,
.path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP,
.path_metric = IEEE80211_PATH_METRIC_AIRTIME,
.auth_id = 0, /* open */
.ie = NULL,
.ie_len = 0,
.is_secure = false,

8
net/wireless/nl80211.c
View File

@ -4672,6 +4672,7 @@ static const struct nla_policy
[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
[NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
[NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
.len = IEEE80211_MAX_DATA_LEN },
@ -4857,6 +4858,13 @@ static int nl80211_parse_mesh_setup(struct genl_info *info,
if (setup->is_secure)
setup->user_mpm = true;
if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
if (!setup->user_mpm)
return -EINVAL;
setup->auth_id =
nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
}
return 0;
}