COMMAND(scan, trigger, NULL,
NL80211_CMD_TRIGGER_SCAN, 0, CIB_NETDEV, handle_scan);
-typedef void (*printfn)(unsigned char type, unsigned char len, unsigned char *data);
-
static void tab_on_first(bool *first)
{
if (!*first)
*first = false;
}
-static void print_ssid(unsigned char type, unsigned char len, unsigned char *data)
+static void print_ssid(const uint8_t type, uint8_t len, const uint8_t *data)
{
int i;
- printf("\tSSID: ");
- for (i=0; i<len; i++) {
+
+ printf(" ");
+
+ for (i = 0; i < len; i++) {
if (isprint(data[i]))
printf("%c", data[i]);
else
printf("\n");
}
-static void print_supprates(unsigned char type, unsigned char len, unsigned char *data)
+static void print_supprates(const uint8_t type, uint8_t len, const uint8_t *data)
{
int i;
- if (type == 1)
- printf("\tSupported rates: ");
- else
- printf("\tExtended supported rates: ");
+ printf(" ");
- for (i=0; i<len; i++) {
+ for (i = 0; i < len; i++) {
int r = data[i] & 0x7f;
printf("%d.%d%s ", r/2, 5*(r&1), data[i] & 0x80 ? "*":"");
}
printf("\n");
}
-static void print_ds(unsigned char type, unsigned char len, unsigned char *data)
+static void print_ds(const uint8_t type, uint8_t len, const uint8_t *data)
{
- printf("\tDS Parameter set: channel %d\n", data[0]);
+ printf(" channel %d\n", data[0]);
}
-static void print_ign(unsigned char type, unsigned char len, unsigned char *data)
-{
- /* ignore for now, not too useful */
-}
-
-static void print_country(unsigned char type, unsigned char len, unsigned char *data)
+static void print_country(const uint8_t type, uint8_t len, const uint8_t *data)
{
int i;
- printf("\tCountry: %.*s", 2, data);
+ printf(" %.*s", 2, data);
switch (data[2]) {
case 'I':
printf(" (indoor)");
printf("\n");
}
-static void print_erp(unsigned char type, unsigned char len, unsigned char *data)
+static void print_erp(const uint8_t type, uint8_t len, const uint8_t *data)
{
if (data[0] == 0x00)
- return;
-
- printf("\tERP:");
+ printf(" <no flags>");
if (data[0] & 0x01)
printf(" NonERP_Present");
if (data[0] & 0x02)
printf("\n");
}
-static void print_cipher(unsigned char *data)
+static void print_cipher(const uint8_t *data)
{
if (memcmp(data, wifi_oui, 3) == 0) {
switch (data[3]) {
data[0], data[1] ,data[2], data[3]);
}
-static void print_auth(unsigned char *data)
+static void print_auth(const uint8_t *data)
{
if (memcmp(data, wifi_oui, 3) == 0) {
switch (data[3]) {
data[0], data[1] ,data[2], data[3]);
}
-static void print_rsn_ie(const char *ie,
- const char *defcipher, const char *defauth,
- unsigned char len, unsigned char *data)
+static void print_rsn_ie(const char *defcipher, const char *defauth,
+ uint8_t len, const uint8_t *data)
{
bool first = true;
__u16 version, count, capa;
int i;
- printf("\t%s:", ie);
-
- if (len < 2) {
- printf(" <too short> data:");
- for(i = 0; i < len; i++)
- printf(" %.02x", data[i]);
- printf("\n");
- return;
- }
-
version = data[0] + (data[1] << 8);
tab_on_first(&first);
printf("\t * Version: %d\n", version);
count = data[0] | (data[1] << 8);
tab_on_first(&first);
printf("\t * Authentication suites:");
- for (i=0; i<count; i++) {
+ for (i = 0; i < count; i++) {
printf(" ");
print_auth(data + 2 + (i * 4));
}
printf("\t * Capabilities: 0x%.4x\n", capa);
}
-static void print_rsn(unsigned char type, unsigned char len, unsigned char *data)
+static void print_rsn(const uint8_t type, uint8_t len, const uint8_t *data)
{
- print_rsn_ie("RSN", "CCMP", "IEEE 802.1X", len, data);
+ print_rsn_ie("CCMP", "IEEE 802.1X", len, data);
}
-static void print_capabilities(unsigned char type, unsigned char len, unsigned char *data)
+static void print_capabilities(const uint8_t type, uint8_t len, const uint8_t *data)
{
int i;
- printf("\tExtended capabilties:");
- for(i=0; i<len; i++)
+ for(i = 0; i < len; i++)
printf(" %.02x", data[i]);
printf("\n");
}
-static const printfn ieprinters[] = {
- [0] = print_ssid,
- [1] = print_supprates,
- [3] = print_ds,
- [5] = print_ign,
- [7] = print_country,
- [42] = print_erp,
- [48] = print_rsn,
- [50] = print_supprates,
- [127] = print_capabilities,
+struct ie_print {
+ const char *name;
+ void (*print)(const uint8_t type, uint8_t len, const uint8_t *data);
+ uint8_t minlen, maxlen;
};
-static void print_wifi_wpa(unsigned char type, unsigned char len, unsigned char *data)
+static void print_ie(const struct ie_print *p, const uint8_t type,
+ uint8_t len, const uint8_t *data)
{
- print_rsn_ie("WPA", "TKIP", "IEEE 802.1X", len, data);
+ int i;
+
+ if (!p->print)
+ return;
+
+ printf("\t%s:", p->name);
+ if (len < p->minlen || len > p->maxlen) {
+ if (len > 1) {
+ printf(" <invalid: %d bytes:", len);
+ for (i = 0; i < len; i++)
+ printf(" %.02x", data[i]);
+ printf(">\n");
+ } else if (len)
+ printf(" <invalid: 1 byte: %.02x>\n", data[0]);
+ else
+ printf(" <invalid: no data>\n");
+ return;
+ }
+
+ p->print(type, len, data);
+}
+
+#define PRINT_IGN { \
+ .name = "IGNORE", \
+ .print = NULL, \
+ .minlen = 0, \
+ .maxlen = 255, \
}
-static void print_wifi_wmm(unsigned char type, unsigned char len, unsigned char *data)
+static const struct ie_print ieprinters[] = {
+ [0] = { "SSID", print_ssid, 0, 32, },
+ [1] = { "Supported rates", print_supprates, 0, 255, },
+ [3] = { "DS Paramater set", print_ds, 1, 1, },
+ [5] = PRINT_IGN,
+ [7] = { "Country", print_country, 3, 255, },
+ [42] = { "ERP", print_erp, 1, 255, },
+ [48] = { "RSN", print_rsn, 2, 255, },
+ [50] = { "Extended supported rates", print_supprates, 0, 255, },
+ [127] = { "Extended capabilities", print_capabilities, 0, 255, },
+};
+
+static void print_wifi_wpa(const uint8_t type, uint8_t len, const uint8_t *data)
+{
+ print_rsn_ie("TKIP", "IEEE 802.1X", len, data);
+}
+
+static void print_wifi_wmm(const uint8_t type, uint8_t len, const uint8_t *data)
{
int i;
- printf("\tWMM ");
switch (data[0]) {
case 0x00:
- printf("information:");
+ printf(" information:");
break;
case 0x01:
- printf("parameter:");
+ printf(" parameter:");
break;
default:
- printf("type %d:", data[0]);
+ printf(" type %d:", data[0]);
break;
}
- for(i=0; i<len-1; i++)
+ for(i = 0; i < len - 1; i++)
printf(" %.02x", data[i + 1]);
printf("\n");
}
-static void print_wifi_wps(unsigned char type, unsigned char len, unsigned char *data)
+static void print_wifi_wps(const uint8_t type, uint8_t len, const uint8_t *data)
{
bool first = true;
__u16 subtype, sublen;
- printf("\tWPS:");
-
while (len >= 4) {
subtype = (data[0] << 8) + data[1];
sublen = (data[2] << 8) + data[3];
}
}
-static const printfn wifiprinters[] = {
- [1] = print_wifi_wpa,
- [2] = print_wifi_wmm,
- [4] = print_wifi_wps,
+static const struct ie_print wifiprinters[] = {
+ [1] = { "WPA", print_wifi_wpa, 2, 255, },
+ [2] = { "WMM", print_wifi_wmm, 1, 255, },
+ [4] = { "WPS", print_wifi_wps, 0, 255, },
};
static void print_vendor(unsigned char len, unsigned char *data,
}
if (len >= 4 && memcmp(data, wifi_oui, 3) == 0) {
- if (data[3] < ARRAY_SIZE(wifiprinters) && wifiprinters[data[3]])
- return wifiprinters[data[3]](data[3], len - 4, data + 4);
+ if (data[3] < ARRAY_SIZE(wifiprinters) && wifiprinters[data[3]].name) {
+ print_ie(&wifiprinters[data[3]], data[3], len - 4, data + 4);
+ return;
+ }
if (!params->unknown)
return;
printf("\tWiFi OUI %#.2x, data:", data[3]);
static void print_ies(unsigned char *ie, int ielen, struct scan_params *params)
{
while (ielen >= 2 && ielen >= ie[1]) {
- if (ie[0] < ARRAY_SIZE(ieprinters) && ieprinters[ie[0]]) {
- ieprinters[ie[0]](ie[0], ie[1], ie + 2);
+ if (ie[0] < ARRAY_SIZE(ieprinters) && ieprinters[ie[0]].name) {
+ print_ie(&ieprinters[ie[0]], ie[0], ie[1], ie + 2);
} else if (ie[0] == 221 /* vendor */) {
print_vendor(ie[1], ie + 2, params);
} else if (params->unknown) {
projects / thirdparty / iw.git / commitdiff
