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monitor: Print TIM information

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This commit is contained in:
Patrik Flykt 2014-12-12 15:51:42 +02:00 committed by Denis Kenzior
parent ca77daafe3
commit 2f21cb47c4
1 changed files with 45 additions and 0 deletions
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45
monitor/nlmon.c
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@ -378,6 +378,49 @@ static void print_ie_ds(unsigned int level, const char *label,
print_attr(level, "%s: channel %d", label, *channel);
}
static void print_ie_tim(unsigned int level, const char *label,
const void *data, uint16_t size)
{
const char *dtim = data;
int t, len = size - 3, pos = 0;
uint8_t bit;
char str[128];
if (size < 4) {
print_ie_error(level, label, size, -EINVAL);
return;
}
print_attr(level, "%s:", label);
print_attr(level + 1, "DTIM count %2d %s", dtim[0],
dtim[0]? "beacon frame(s)": "this beacon frame is DTIM");
print_attr(level + 1, "DTIM period %2d beacon frame(s)", dtim[1]);
print_attr(level + 1, "Group buffered %d offset %d",
!!(dtim[2] & 0x01), dtim[2] >> 1);
len = size - 3;
for (t = 0; t < len ; t++) {
if (((t + 1) % 4) == 1) {
pos = 0;
pos += snprintf(&str[pos], sizeof(str) - pos,
"AID %4d - %4d ",
t * 8 + 1,
t + 4 > len? len * 8: (t + 4) * 8);
}
for (bit = 0x01; bit; bit <<= 1)
pos += snprintf(&str[pos], sizeof(str) - pos,
"%d", !!(dtim[t + 3] & bit));
pos += snprintf(&str[pos], sizeof(str) - pos, " ");
if ((t + 1) % 4 == 0 || t + 1 == len)
print_attr(level + 1, "%s", str);
}
}
static void print_ie_country(unsigned int level, const char *label,
const void *data, uint16_t size)
{
@ -444,6 +487,8 @@ static struct attr_entry ie_entry[] = {
ATTR_CUSTOM, { .function = print_ie_rate } },
{IE_TYPE_DSSS_PARAMETER_SET, "DSSS parameter set",
ATTR_CUSTOM, { .function = print_ie_ds } },
{IE_TYPE_TIM, "TIM",
ATTR_CUSTOM, { .function = print_ie_tim } },
{IE_TYPE_COUNTRY, "Country",
ATTR_CUSTOM, { .function = print_ie_country } },
{IE_TYPE_POWER_CONSTRAINT, "Power constraint",