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monitor: Print supported rates

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Print out supported rates, both basic and extended IEs. A trailing
(B) after the rate indicates BSSBasicRateSet.
This commit is contained in:
Patrik Flykt 2014-12-12 15:51:36 +02:00 committed by Denis Kenzior
parent fbdb88dda3
commit ce93e1bf9c
1 changed files with 51 additions and 0 deletions
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51
monitor/nlmon.c
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@ -289,6 +289,13 @@ static const struct {
{ }
};
static void print_ie_error(unsigned int level, const char *label,
uint16_t len, int err)
{
print_attr(level, "Error decoding %s IE len %d: %s (%d)", label, len,
strerror(-err), err);
}
static void print_ie_vendor(unsigned int level, const char *label,
const void *data, uint16_t size)
{
@ -318,7 +325,51 @@ static void print_ie_vendor(unsigned int level, const char *label,
oui[0], oui[1], oui[2]);
}
static void print_ie_rate(unsigned int level, const char *label,
const void *data, uint16_t size)
{
uint8_t *rate = (uint8_t *)data;
int pos = 0, i = 0;
char str[128];
if (!size) {
print_ie_error(level, label, size, -EINVAL);
return;
}
print_attr(level, "%s:", label);
while (i < size) {
bool mandatory = (rate[i] & 0x8);
if (rate[i] == 0xff) {
print_attr(level + 1, "BSS membership HT_PHY");
i++;
continue;
}
pos += snprintf(&str[pos], sizeof(str) - pos, "%.1f%s ",
(rate[i] & 127) * 0.5, mandatory? "(B)": "");
i++;
if (i % 8 && i != size)
continue;
if (pos) {
pos += snprintf(&str[pos], sizeof(str) - pos, "Mbit/s");
print_attr(level + 1, "%s", str);
pos = 0;
}
}
}
static struct attr_entry ie_entry[] = {
{IE_TYPE_SUPPORTED_RATES, "Supported rates",
ATTR_CUSTOM, { .function = print_ie_rate } },
{IE_TYPE_EXTENDED_SUPPORTED_RATES, "Extended supported rates",
ATTR_CUSTOM, { .function = print_ie_rate } },
{IE_TYPE_VENDOR_SPECIFIC, "Vendor specific",
ATTR_CUSTOM, { .function = print_ie_vendor } },
{ },