From 305f6955d6cc22ca88dae513638065134eb45b86 Mon Sep 17 00:00:00 2001 From: Daniel Danzberger Date: Tue, 3 Jul 2018 15:32:11 +0200 Subject: [PATCH] iwinfo: nl80211: add survey. Signed-off-by: Daniel Danzberger --- include/iwinfo.h | 11 ++++++++ iwinfo_nl80211.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 80 insertions(+) diff --git a/include/iwinfo.h b/include/iwinfo.h index 4111205..49ee7f0 100644 --- a/include/iwinfo.h +++ b/include/iwinfo.h @@ -128,6 +128,16 @@ struct iwinfo_assoclist_entry { uint32_t thr; }; +struct iwinfo_survey_entry { + uint64_t active_time; + uint64_t busy_time; + uint64_t busy_time_ext; + uint64_t rxtime; + uint64_t txtime; + uint32_t mhz; + uint8_t noise; +}; + struct iwinfo_txpwrlist_entry { uint8_t dbm; uint16_t mw; @@ -223,6 +233,7 @@ struct iwinfo_ops { int (*scanlist)(const char *, char *, int *); int (*freqlist)(const char *, char *, int *); int (*countrylist)(const char *, char *, int *); + int (*survey)(const char *, char *, int *); int (*lookup_phy)(const char *, char *); void (*close)(void); }; diff --git a/iwinfo_nl80211.c b/iwinfo_nl80211.c index 0e0206b..49a1831 100644 --- a/iwinfo_nl80211.c +++ b/iwinfo_nl80211.c @@ -1678,6 +1678,59 @@ static void nl80211_parse_rateinfo(struct nlattr **ri, re->is_40mhz = (re->mhz == 40); } +static int nl80211_get_survey_cb(struct nl_msg *msg, void *arg) +{ + struct nl80211_array_buf *arr = arg; + struct iwinfo_survey_entry *e = arr->buf; + struct nlattr **attr = nl80211_parse(msg); + struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; + int rc; + + static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { + [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, + [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, + [NL80211_SURVEY_INFO_TIME] = { .type = NLA_U64 }, + [NL80211_SURVEY_INFO_TIME_BUSY] = { .type = NLA_U64 }, + [NL80211_SURVEY_INFO_TIME_EXT_BUSY] = { .type = NLA_U64 }, + [NL80211_SURVEY_INFO_TIME_RX] = { .type = NLA_U64 }, + [NL80211_SURVEY_INFO_TIME_TX] = { .type = NLA_U64 }, + }; + + rc = nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, + attr[NL80211_ATTR_SURVEY_INFO], + survey_policy); + if (rc) + return NL_SKIP; + + /* advance to end of array */ + e += arr->count; + memset(e, 0, sizeof(*e)); + + if (sinfo[NL80211_SURVEY_INFO_FREQUENCY]) + e->mhz = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); + + if (sinfo[NL80211_SURVEY_INFO_NOISE]) + e->noise = nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); + + if (sinfo[NL80211_SURVEY_INFO_TIME]) + e->active_time = nla_get_u64(sinfo[NL80211_SURVEY_INFO_TIME]); + + if (sinfo[NL80211_SURVEY_INFO_TIME_BUSY]) + e->busy_time = nla_get_u64(sinfo[NL80211_SURVEY_INFO_TIME_BUSY]); + + if (sinfo[NL80211_SURVEY_INFO_TIME_EXT_BUSY]) + e->busy_time_ext = nla_get_u64(sinfo[NL80211_SURVEY_INFO_TIME_EXT_BUSY]); + + if (sinfo[NL80211_SURVEY_INFO_TIME_RX]) + e->rxtime = nla_get_u64(sinfo[NL80211_SURVEY_INFO_TIME_RX]); + + if (sinfo[NL80211_SURVEY_INFO_TIME_TX]) + e->txtime = nla_get_u64(sinfo[NL80211_SURVEY_INFO_TIME_TX]); + + arr->count++; + return NL_SKIP; +} + static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg) { struct nl80211_array_buf *arr = arg; @@ -1812,6 +1865,21 @@ static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg) return NL_SKIP; } +static int nl80211_get_survey(const char *ifname, char *buf, int *len) +{ + struct nl80211_array_buf arr = { .buf = buf, .count = 0 }; + int rc; + + rc = nl80211_request(ifname, NL80211_CMD_GET_SURVEY, + NLM_F_DUMP, nl80211_get_survey_cb, &arr); + if (!rc) + *len = (arr.count * sizeof(struct iwinfo_survey_entry)); + else + *len = 0; + + return 0; +} + static int nl80211_get_assoclist(const char *ifname, char *buf, int *len) { DIR *d; @@ -2862,6 +2930,7 @@ const struct iwinfo_ops nl80211_ops = { .scanlist = nl80211_get_scanlist, .freqlist = nl80211_get_freqlist, .countrylist = nl80211_get_countrylist, + .survey = nl80211_get_survey, .lookup_phy = nl80211_lookup_phyname, .close = nl80211_close }; -- 2.25.1