int mac80211_get_coverageclass(char *interface) {
struct nlattr *tb[NL80211_ATTR_MAX + 1];
struct nl_msg *msg;
struct genlmsghdr *gnlh;
int phy;
unsigned char coverage=0;
phy = mac80211_get_phyidx_by_vifname(interface);
if (phy == -1) return 0;
msg = unl_genl_msg(&unl, NL80211_CMD_GET_WIPHY, false);
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, phy);
if (unl_genl_request_single(&unl, msg, &msg) < 0)
return 0;
if (!msg) return 0;
gnlh=nlmsg_data(nlmsg_hdr(msg));
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
genlmsg_attrlen(gnlh, 0), NULL);
if (tb[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
coverage = nla_get_u8(tb[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
/* See handle_distance() for an explanation where the '450' comes from */
// printf("\tCoverage class: %d (up to %dm)\n", coverage, 450 * coverage);
}
// printf ("%d\n", coverage);
nlmsg_free(msg);
return coverage;
nla_put_failure:
nlmsg_free(msg);
return 0;
}
static void getNoise_mac80211_internal(char *interface,struct mac80211_info *mac80211_info) {
struct nl_msg *msg;
int wdev = if_nametoindex(interface);
msg = unl_genl_msg(&unl, NL80211_CMD_GET_SURVEY, true);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev);
unl_genl_request(&unl, msg, mac80211_cb_survey, mac80211_info);
return;
nla_put_failure:
nlmsg_free(msg);
return;
}
int getFrequency_mac80211(char *interface)
{
struct nl_msg *msg;
struct mac80211_info mac80211_info;
int wdev = if_nametoindex(interface);
memset(&mac80211_info, 0, sizeof(mac80211_info));
msg = unl_genl_msg(&unl, NL80211_CMD_GET_SURVEY, true);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev);
unl_genl_request(&unl, msg, mac80211_cb_survey, &mac80211_info);
return mac80211_info.frequency;
nla_put_failure:
nlmsg_free(msg);
return(0);
}
int unl_nl80211_wdev_to_phy(struct unl *unl, int wdev)
{
struct nl_msg *msg;
struct nlattr *attr;
int ret = -1;
msg = unl_genl_msg(unl, NL80211_CMD_GET_INTERFACE, false);
if (!msg)
return -1;
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev);
if (unl_genl_request_single(unl, msg, &msg) < 0)
return -1;
attr = unl_find_attr(unl, msg, NL80211_ATTR_WIPHY);
if (!attr)
goto out;
ret = nla_get_u32(attr);
out:
nla_put_failure:
nlmsg_free(msg);
return ret;
}