Note -- This patch can't be used verbatim, as there are other changes
to nl80211.h in compat since the current version of iw in git has been
pulled. Specifically nl80211_sta_info has more in it.
Signed-off-by: Paul Stewart <pstew@xxxxxxxxxx>
---
nl80211.h | 33 +++++++++++++++++++++++++++++++++
station.c | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 67 insertions(+), 0 deletions(-)
diff --git a/nl80211.h b/nl80211.h
index 2b89b71..8968aa5 100644
--- a/nl80211.h
+++ b/nl80211.h
@@ -1216,6 +1216,36 @@ enum nl80211_rate_info {
};
/**
+ * enum nl80211_sta_bss_param - BSS information collected by STA
+ *
+ * These attribute types are used with %NL80211_STA_INFO_BSS_PARAM
+ * when getting information about the bitrate of a station.
+ *
+ * @__NL80211_STA_BSS_PARAM_INVALID: attribute number 0 is reserved
+ * @NL80211_STA_BSS_PARAM_CTS_PROT: whether CTS protection is enabled (flag)
+ * @NL80211_STA_BSS_PARAM_SHORT_PREAMBLE: whether short preamble is enabled
+ * (flag)
+ * @NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME: whether short slot time is enabled
+ * (flag)
+ * @NL80211_STA_BSS_PARAM_DTIM_PERIOD: DTIM period for beaconing (u8)
+ * @NL80211_STA_BSS_PARAM_BEACON_INTERVAL: Beacon interval (u16)
+ * @NL80211_STA_BSS_PARAM_MAX: highest sta_bss_param number currently defined
+ * @__NL80211_STA_BSS_PARAM_AFTER_LAST: internal use
+ */
+enum nl80211_sta_bss_param {
+ __NL80211_STA_BSS_PARAM_INVALID,
+ NL80211_STA_BSS_PARAM_CTS_PROT,
+ NL80211_STA_BSS_PARAM_SHORT_PREAMBLE,
+ NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME,
+ NL80211_STA_BSS_PARAM_DTIM_PERIOD,
+ NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
+
+ /* keep last */
+ __NL80211_STA_BSS_PARAM_AFTER_LAST,
+ NL80211_STA_BSS_PARAM_MAX = __NL80211_STA_BSS_PARAM_AFTER_LAST - 1
+};
+
+/**
* enum nl80211_sta_info - station information
*
* These attribute types are used with %NL80211_ATTR_STA_INFO
@@ -1236,6 +1266,8 @@ enum nl80211_rate_info {
* @NL80211_STA_INFO_TX_RETRIES: total retries (u32, to this station)
* @NL80211_STA_INFO_TX_FAILED: total failed packets (u32, to this station)
* @NL80211_STA_INFO_SIGNAL_AVG: signal strength average (u8, dBm)
+ * @NL80211_STA_INFO_BSS_PARAM: current station's view of BSS, nested attribute
+ * containing info as possible, see &enum nl80211_sta_bss_param
*/
enum nl80211_sta_info {
__NL80211_STA_INFO_INVALID,
@@ -1252,6 +1284,7 @@ enum nl80211_sta_info {
NL80211_STA_INFO_TX_RETRIES,
NL80211_STA_INFO_TX_FAILED,
NL80211_STA_INFO_SIGNAL_AVG,
+ NL80211_STA_INFO_BSS_PARAM,
/* keep last */
__NL80211_STA_INFO_AFTER_LAST,
diff --git a/station.c b/station.c
index 6581d50..e658167 100644
--- a/station.c
+++ b/station.c
@@ -36,6 +36,7 @@ static int print_sta_handler(struct nl_msg *msg, void *arg)
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
+ struct nlattr *binfo[NL80211_STA_BSS_PARAM_MAX + 1];
char mac_addr[20], state_name[10], dev[20];
static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
[NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
@@ -58,6 +59,14 @@ static int print_sta_handler(struct nl_msg *msg, void *arg)
[NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
[NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
};
+ static struct nla_policy bss_policy[NL80211_STA_BSS_PARAM_MAX + 1] = {
+ [NL80211_STA_BSS_PARAM_CTS_PROT] = { .type = NLA_FLAG },
+ [NL80211_STA_BSS_PARAM_SHORT_PREAMBLE] = { .type = NLA_FLAG },
+ [NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME] = { .type = NLA_FLAG },
+ [NL80211_STA_BSS_PARAM_DTIM_PERIOD] = { .type = NLA_U8 },
+ [NL80211_STA_BSS_PARAM_BEACON_INTERVAL] = { .type = NLA_U16 },
+ };
+
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
genlmsg_attrlen(gnlh, 0), NULL);
@@ -167,6 +176,31 @@ static int print_sta_handler(struct nl_msg *msg, void *arg)
printf("\n\tmesh plink:\t%s", state_name);
}
+ if (sinfo[NL80211_STA_INFO_BSS_PARAM]) {
+ if (nla_parse_nested(binfo, NL80211_STA_BSS_PARAM_MAX,
+ sinfo[NL80211_STA_INFO_BSS_PARAM],
+ bss_policy)) {
+ fprintf(stderr, "failed to parse nested bss parameters!\n");
+ } else {
+ char *delim = "";
+ printf("\n\tbss flags:\t");
+ if (binfo[NL80211_STA_BSS_PARAM_CTS_PROT]) {
+ printf("CTS-protection");
+ delim = " ";
+ }
+ if (binfo[NL80211_STA_BSS_PARAM_SHORT_PREAMBLE]) {
+ printf("%sshort-preamble", delim);
+ delim = " ";
+ }
+ if (binfo[NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME])
+ printf("%sshort-slot-time", delim);
+ printf("\n\tdtim period:\t%d",
+ nla_get_u8(binfo[NL80211_STA_BSS_PARAM_DTIM_PERIOD]));
+ printf("\n\tbeacon int:\t%d",
+ nla_get_u16(binfo[NL80211_STA_BSS_PARAM_BEACON_INTERVAL]));
+ }
+ }
+
printf("\n");
return NL_SKIP;
}
--
1.7.3.1
--
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