The chanmode structure and the function get_cf1 to calculate the center
frequency one can be used by not only the ibss join code but also by the
mesh and ocb join code.
Signed-off-by: Sven Eckelmann <sven@xxxxxxxxxxxxx>
---
v3:
* split patch into two different patches (0001/0002) as request by
Julian Calaby <julian.calaby@xxxxxxxxx>
* change join_ocb to also use get_cf1
* move NOHT to the last entry in the mesh/ibss join usage texts as
requested by Julian Calaby <julian.calaby@xxxxxxxxx>
v2:
* rebase from v4.3-ish version to current master
ibss.c | 33 ---------------------------------
iw.h | 9 +++++++++
mesh.c | 10 +++-------
util.c | 26 ++++++++++++++++++++++++++
4 files changed, 38 insertions(+), 40 deletions(-)
diff --git a/ibss.c b/ibss.c
index 024981a..a761794 100644
--- a/ibss.c
+++ b/ibss.c
@@ -16,39 +16,6 @@
SECTION(ibss);
-struct chanmode {
- const char *name;
- unsigned int width;
- int freq1_diff;
- int chantype; /* for older kernel */
-};
-
-static int get_cf1(const struct chanmode *chanmode, unsigned long freq)
-{
- unsigned int cf1 = freq, j;
- unsigned int vht80[] = { 5180, 5260, 5500, 5580, 5660, 5745 };
-
- switch (chanmode->width) {
- case NL80211_CHAN_WIDTH_80:
- /* setup center_freq1 */
- for (j = 0; j < ARRAY_SIZE(vht80); j++) {
- if (freq >= vht80[j] && freq < vht80[j] + 80)
- break;
- }
-
- if (j == ARRAY_SIZE(vht80))
- break;
-
- cf1 = vht80[j] + 30;
- break;
- default:
- cf1 = freq + chanmode->freq1_diff;
- break;
- }
-
- return cf1;
-}
-
static int join_ibss(struct nl80211_state *state,
struct nl_msg *msg,
int argc, char **argv,
diff --git a/iw.h b/iw.h
index 263e8b1..d91a33e 100644
--- a/iw.h
+++ b/iw.h
@@ -59,6 +59,13 @@ struct cmd {
const struct cmd *parent;
};
+struct chanmode {
+ const char *name;
+ unsigned int width;
+ int freq1_diff;
+ int chantype; /* for older kernel */
+};
+
#define ARRAY_SIZE(ar) (sizeof(ar)/sizeof(ar[0]))
#define DIV_ROUND_UP(x, y) (((x) + (y - 1)) / (y))
@@ -174,6 +181,8 @@ void print_ies(unsigned char *ie, int ielen, bool unknown,
void parse_bitrate(struct nlattr *bitrate_attr, char *buf, int buflen);
void iw_hexdump(const char *prefix, const __u8 *data, size_t len);
+int get_cf1(const struct chanmode *chanmode, unsigned long freq);
+
#define SCHED_SCAN_OPTIONS "interval <in_msecs> [delay <in_secs>] " \
"[freqs <freq>+] [matches [ssid <ssid>]+]] [active [ssid <ssid>]+|passive] [randomise[=<addr>/<mask>]]"
int parse_sched_scan(struct nl_msg *msg, int *argc, char ***argv);
diff --git a/mesh.c b/mesh.c
index f2415f3..593ab7a 100644
--- a/mesh.c
+++ b/mesh.c
@@ -448,12 +448,8 @@ static int join_mesh(struct nl80211_state *state,
char *end, *value = NULL, *sptr = NULL;
unsigned int i;
unsigned long freq = 0;
- static const struct {
- const char *name;
- unsigned int width;
- int freq1_diff;
- int chantype; /* for older kernel */
- } *chanmode_selected = NULL, chanmode[] = {
+ const struct chanmode *chanmode_selected = NULL;
+ static const struct chanmode chanmode[] = {
{ .name = "HT20",
.width = NL80211_CHAN_WIDTH_20,
.freq1_diff = 0,
@@ -506,7 +502,7 @@ static int join_mesh(struct nl80211_state *state,
NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
chanmode_selected->width);
NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1,
- freq + chanmode_selected->freq1_diff);
+ get_cf1(chanmode_selected, freq));
if (chanmode_selected->chantype != -1)
NLA_PUT_U32(msg,
NL80211_ATTR_WIPHY_CHANNEL_TYPE,
diff --git a/util.c b/util.c
index 55e1e26..da3be32 100644
--- a/util.c
+++ b/util.c
@@ -726,3 +726,29 @@ void iw_hexdump(const char *prefix, const __u8 *buf, size_t size)
}
printf("\n\n");
}
+
+int get_cf1(const struct chanmode *chanmode, unsigned long freq)
+{
+ unsigned int cf1 = freq, j;
+ unsigned int vht80[] = { 5180, 5260, 5500, 5580, 5660, 5745 };
+
+ switch (chanmode->width) {
+ case NL80211_CHAN_WIDTH_80:
+ /* setup center_freq1 */
+ for (j = 0; j < ARRAY_SIZE(vht80); j++) {
+ if (freq >= vht80[j] && freq < vht80[j] + 80)
+ break;
+ }
+
+ if (j == ARRAY_SIZE(vht80))
+ break;
+
+ cf1 = vht80[j] + 30;
+ break;
+ default:
+ cf1 = freq + chanmode->freq1_diff;
+ break;
+ }
+
+ return cf1;
+}
--
2.6.2
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