tests: Allow multiple management frames to be used with ap-mgmt-fuzzer

The optional "-m <multi.dat>" command line option can now be used to
specify a data file that can include multiple management frames with
each one prefixed with a 16-bit big endian length field. This allows a
single fuzzer run to be used to go through multi-frame exchanges. The
multi.dat file shows an example of this with Probe Request frame,
Authentication frame, Association Request frame, and an Action frame.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2016-11-16 18:17:08 +02:00 committed by Jouni Malinen
parent d50f518e95
commit 7d3f18d72c
2 changed files with 76 additions and 7 deletions

View file

@ -11,6 +11,7 @@
#include "utils/common.h"
#include "utils/eloop.h"
#include "ap/hostapd.h"
#include "ap/hw_features.h"
#include "ap/ieee802_11.h"
#include "ap/sta_info.h"
@ -28,6 +29,7 @@ struct arg_ctx {
struct wpa_driver_ops driver;
struct hostapd_config iconf;
struct hostapd_bss_config conf;
int multi_frame;
};
@ -46,10 +48,28 @@ static void test_send_mgmt(void *eloop_data, void *user_ctx)
goto out;
}
wpa_hexdump(MSG_MSGDUMP, "fuzzer - WNM", data, len);
os_memset(&fi, 0, sizeof(fi));
if (ctx->multi_frame) {
u8 *pos, *end;
pos = (u8 *) data;
end = pos + len;
while (end - pos > 2) {
u16 flen;
flen = WPA_GET_BE16(pos);
pos += 2;
if (end - pos < flen)
break;
wpa_hexdump(MSG_MSGDUMP, "fuzzer - frame", pos, flen);
ieee802_11_mgmt(&ctx->hapd, pos, flen, &fi);
pos += flen;
}
} else {
wpa_hexdump(MSG_MSGDUMP, "fuzzer - WNM", data, len);
ieee802_11_mgmt(&ctx->hapd, (u8 *) data, len, &fi);
}
out:
os_free(data);
@ -57,20 +77,62 @@ out:
}
static struct hostapd_hw_modes * gen_modes(void)
{
struct hostapd_hw_modes *mode;
struct hostapd_channel_data *chan;
mode = os_zalloc(sizeof(struct hostapd_hw_modes));
if (!mode)
return NULL;
mode->mode = HOSTAPD_MODE_IEEE80211G;
chan = os_zalloc(sizeof(struct hostapd_channel_data));
if (!chan) {
os_free(mode);
return NULL;
}
chan->chan = 1;
chan->freq = 2412;
mode->channels = chan;
mode->num_channels = 1;
mode->rates = os_zalloc(sizeof(int));
if (!mode->rates) {
os_free(chan);
os_free(mode);
return NULL;
}
mode->rates[0] = 10;
mode->num_rates = 1;
return mode;
}
static int init_hapd(struct arg_ctx *ctx)
{
struct hostapd_data *hapd = &ctx->hapd;
struct sta_info *sta;
struct hostapd_bss_config *bss;
hapd->driver = &ctx->driver;
os_memcpy(hapd->own_addr, "\x02\x00\x00\x00\x03\x00", ETH_ALEN);
hapd->iface = &ctx->iface;
hapd->iface->conf = hostapd_config_defaults();;
hapd->iface->conf = hostapd_config_defaults();
if (!hapd->iface->conf)
return -1;
hapd->iface->hw_features = gen_modes();
hapd->iface->num_hw_features = 1;
hapd->iface->current_mode = hapd->iface->hw_features;
hapd->iconf = hapd->iface->conf;
hapd->conf = hapd->iconf->bss[0];
hapd->iconf->hw_mode = HOSTAPD_MODE_IEEE80211G;
hapd->iconf->channel = 1;
bss = hapd->conf = hapd->iconf->bss[0];
hostapd_config_defaults_bss(hapd->conf);
os_memcpy(bss->ssid.ssid, "test", 4);
bss->ssid.ssid_len = 4;
bss->ssid.ssid_set = 1;
sta = ap_sta_add(hapd, (u8 *) "\x02\x00\x00\x00\x00\x00");
if (sta)
@ -86,7 +148,7 @@ int main(int argc, char *argv[])
int ret = -1;
if (argc < 2) {
printf("usage: %s <file>\n", argv[0]);
printf("usage: %s [-m] <file>\n", argv[0]);
return -1;
}
@ -102,7 +164,12 @@ int main(int argc, char *argv[])
}
os_memset(&ctx, 0, sizeof(ctx));
if (argc >= 3 && os_strcmp(argv[1], "-m") == 0) {
ctx.multi_frame = 1;
ctx.fname = argv[2];
} else {
ctx.fname = argv[1];
}
if (init_hapd(&ctx))
goto fail;
@ -112,6 +179,8 @@ int main(int argc, char *argv[])
eloop_run();
wpa_printf(MSG_DEBUG, "eloop done");
hostapd_free_stas(&ctx.hapd);
hostapd_free_hw_features(ctx.hapd.iface->hw_features,
ctx.hapd.iface->num_hw_features);
ret = 0;
fail:

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