From: Luciano Coelho <luciano.coelho@xxxxxxxxx>
Like with normal scans, we can randomise the MAC address sent out in
active scheduled scans. Add the randomise option to sched_scan (and
net-detect) parsing code.
Signed-off-by: Luciano Coelho <luciano.coelho@xxxxxxxxx>
---
iw.h | 2 +-
scan.c | 11 +++++++++++
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/iw.h b/iw.h
index fc20838..78195ea 100644
--- a/iw.h
+++ b/iw.h
@@ -174,7 +174,7 @@ void parse_bitrate(struct nlattr *bitrate_attr, char *buf, int buflen);
void iw_hexdump(const char *prefix, const __u8 *data, size_t len);
#define SCHED_SCAN_OPTIONS "interval <in_msecs> [delay <in_secs>] " \
- "[freqs <freq>+] [matches [ssid <ssid>]+]] [active [ssid <ssid>]+|passive] "
+ "[freqs <freq>+] [matches [ssid <ssid>]+]] [active [ssid <ssid>]+|passive] [randomise[=<addr>/<mask>]]"
int parse_sched_scan(struct nl_msg *msg, int *argc, char ***argv);
DECLARE_SECTION(set);
diff --git a/scan.c b/scan.c
index 7ff04ec..e959c1b 100644
--- a/scan.c
+++ b/scan.c
@@ -115,6 +115,7 @@ int parse_sched_scan(struct nl_msg *msg, int *argc, char ***argv)
unsigned int freq, interval = 0, delay = 0;
bool have_matchset = false, have_freqs = false, have_ssids = false;
bool have_active = false, have_passive = false;
+ uint32_t flags = 0;
matchset = nlmsg_alloc();
if (!matchset) {
@@ -208,6 +209,14 @@ int parse_sched_scan(struct nl_msg *msg, int *argc, char ***argv)
}
have_passive = true;
+ } else if (!strncmp(v[0], "randomise", 9) ||
+ !strncmp(v[0], "randomize", 9)) {
+ flags |= NL80211_SCAN_FLAG_RANDOM_ADDR;
+ if (c > 0) {
+ err = parse_random_mac_addr(msg, v[0]);
+ if (err)
+ goto nla_put_failure;
+ }
} else {
/* this element is not for us, so
* return to continue parsing.
@@ -312,6 +321,8 @@ int parse_sched_scan(struct nl_msg *msg, int *argc, char ***argv)
nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
if (have_matchset)
nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH, matchset);
+ if (flags)
+ NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, flags);
nla_put_failure:
if (match)
--
2.1.4
--
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