diff options
| author | Luis R. Rodriguez <mcgrof@qca.qualcomm.com> | 2012-07-12 11:49:18 -0700 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-07-17 12:16:39 +0200 |
| commit | 57b5ce072e7361218a8e2ea1d62960cbb71d9cff (patch) | |
| tree | c00265b8f2123f860978d293fa122427ea2139f8 /net/wireless/nl80211.c | |
| parent | b594bab9021f5225a24bcb69d7f7b7272419adb2 (diff) | |
cfg80211: add cellular base station regulatory hint support
Cellular base stations can provide hints to cfg80211 about
where they think we are. This can be done for example on
a cell phone. To enable these hints we simply allow them
through as user regulatory hints but we allow userspace
to clasify the hint as either coming directly from the
user or coming from a cellular base station. This option
is only available when you enable
CONFIG_CFG80211_CERTIFICATION_ONUS.
The base station hints themselves will not be processed
by the core unless at least one device on the system
supports this feature.
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 9216e45e53a0..50b1a0e84f1a 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -354,6 +354,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, + [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, }; /* policy for the key attributes */ @@ -3582,6 +3583,7 @@ static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) { int r; char *data = NULL; + enum nl80211_user_reg_hint_type user_reg_hint_type; /* * You should only get this when cfg80211 hasn't yet initialized @@ -3601,7 +3603,21 @@ static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); - r = regulatory_hint_user(data); + if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) + user_reg_hint_type = + nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); + else + user_reg_hint_type = NL80211_USER_REG_HINT_USER; + + switch (user_reg_hint_type) { + case NL80211_USER_REG_HINT_USER: + case NL80211_USER_REG_HINT_CELL_BASE: + break; + default: + return -EINVAL; + } + + r = regulatory_hint_user(data, user_reg_hint_type); return r; } @@ -3971,6 +3987,11 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) cfg80211_regdomain->dfs_region))) goto nla_put_failure; + if (reg_last_request_cell_base() && + nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, + NL80211_USER_REG_HINT_CELL_BASE)) + goto nla_put_failure; + nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); if (!nl_reg_rules) goto nla_put_failure; |