* Received Data frame processing for IPv4 packets
* Copyright (c) 2010, Jouni Malinen <j@w1.fi>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
*/
#include "utils/includes.h"
#include "wlantest.h"
+static void ping_update(struct wlantest *wt, struct wlantest_sta *sta, int req,
+ u32 src, u32 dst, u16 id, u16 seq)
+{
+ if (req) {
+ sta->icmp_echo_req_src = src;
+ sta->icmp_echo_req_dst = dst;
+ sta->icmp_echo_req_id = id;
+ sta->icmp_echo_req_seq = seq;
+ return;
+ }
+
+ if (sta->icmp_echo_req_src == dst &&
+ sta->icmp_echo_req_dst == src &&
+ sta->icmp_echo_req_id == id &&
+ sta->icmp_echo_req_seq == seq) {
+ sta->counters[WLANTEST_STA_COUNTER_PING_OK]++;
+ if (sta->counters[WLANTEST_STA_COUNTER_ASSOCREQ_TX] == 0 &&
+ sta->counters[WLANTEST_STA_COUNTER_REASSOCREQ_TX] == 0)
+ sta->counters[
+ WLANTEST_STA_COUNTER_PING_OK_FIRST_ASSOC]++;
+ add_note(wt, MSG_DEBUG, "ICMP echo (ping) match for STA "
+ MACSTR, MAC2STR(sta->addr));
+ }
+}
+
+
static void rx_data_icmp(struct wlantest *wt, const u8 *bssid,
const u8 *sta_addr, u32 dst, u32 src,
- const u8 *data, size_t len)
+ const u8 *data, size_t len, const u8 *peer_addr)
{
struct in_addr addr;
char buf[20];
addr.s_addr = dst;
snprintf(buf, sizeof(buf), "%s", inet_ntoa(addr));
addr.s_addr = src;
- wpa_printf(MSG_DEBUG, "ICMP echo %s %s -> %s id=%04x seq=%u len=%u",
- hdr->type == ICMP_ECHO ? "request" : "response",
- inet_ntoa(addr), buf, id, seq, (unsigned) len - 8);
+ add_note(wt, MSG_DEBUG, "ICMP echo %s %s -> %s id=%04x seq=%u len=%u%s",
+ hdr->type == ICMP_ECHO ? "request" : "response",
+ inet_ntoa(addr), buf, id, seq, (unsigned) len - 8,
+ peer_addr ? " [DL]" : "");
bss = bss_find(wt, bssid);
if (bss == NULL) {
- wpa_printf(MSG_INFO, "No BSS " MACSTR " known for ICMP packet",
- MAC2STR(bssid));
+ add_note(wt, MSG_INFO, "No BSS " MACSTR
+ " known for ICMP packet", MAC2STR(bssid));
return;
}
sta = sta_find(bss, sta_addr);
if (sta == NULL) {
- wpa_printf(MSG_INFO, "No STA " MACSTR " known for ICMP packet",
- MAC2STR(sta_addr));
+ add_note(wt, MSG_INFO, "No STA " MACSTR
+ " known for ICMP packet", MAC2STR(sta_addr));
return;
}
- if (hdr->type == ICMP_ECHO) {
- sta->icmp_echo_req_src = src;
- sta->icmp_echo_req_dst = dst;
- sta->icmp_echo_req_id = id;
- sta->icmp_echo_req_seq = seq;
- return;
- }
+ ping_update(wt, sta, hdr->type == ICMP_ECHO, src, dst, id, seq);
+ if (peer_addr && (sta = sta_find(bss, peer_addr)))
+ ping_update(wt, sta, hdr->type == ICMP_ECHO, src, dst, id, seq);
+}
- if (sta->icmp_echo_req_src == dst &&
- sta->icmp_echo_req_dst == src &&
- sta->icmp_echo_req_id == id &&
- sta->icmp_echo_req_seq == seq) {
- sta->counters[WLANTEST_STA_COUNTER_PING_OK]++;
- if (sta->counters[WLANTEST_STA_COUNTER_ASSOCREQ_TX] == 0 &&
- sta->counters[WLANTEST_STA_COUNTER_REASSOCREQ_TX] == 0)
- sta->counters[
- WLANTEST_STA_COUNTER_PING_OK_FIRST_ASSOC]++;
- wpa_printf(MSG_DEBUG, "ICMP echo (ping) match for STA " MACSTR,
- MAC2STR(sta->addr));
+
+static int hwsim_test_packet(const u8 *data, size_t len)
+{
+ size_t i;
+
+ if (len != 1500 - 14)
+ return 0;
+
+ for (i = 0; i < len; i++) {
+ if (data[i] != (i & 0xff))
+ return 0;
}
+
+ return 1;
}
void rx_data_ip(struct wlantest *wt, const u8 *bssid, const u8 *sta_addr,
- const u8 *dst, const u8 *src, const u8 *data, size_t len)
+ const u8 *dst, const u8 *src, const u8 *data, size_t len,
+ const u8 *peer_addr)
{
const struct iphdr *ip;
const u8 *payload;
if (len < sizeof(*ip))
return;
if (ip->version != 4) {
- wpa_printf(MSG_DEBUG, "Unexpected IP protocol version %u in "
- "IPv4 packet (bssid=" MACSTR " str=" MACSTR
- " dst=" MACSTR ")", ip->version, MAC2STR(bssid),
- MAC2STR(src), MAC2STR(dst));
+ if (hwsim_test_packet(data, len)) {
+ add_note(wt, MSG_INFO, "hwsim_test package");
+ return;
+ }
+ add_note(wt, MSG_DEBUG, "Unexpected IP protocol version %u in "
+ "IPv4 packet (bssid=" MACSTR " str=" MACSTR
+ " dst=" MACSTR ")", ip->version, MAC2STR(bssid),
+ MAC2STR(src), MAC2STR(dst));
return;
}
if (ip->ihl * 4 < sizeof(*ip)) {
- wpa_printf(MSG_DEBUG, "Unexpected IP header length %u in "
- "IPv4 packet (bssid=" MACSTR " str=" MACSTR
- " dst=" MACSTR ")", ip->ihl, MAC2STR(bssid),
- MAC2STR(src), MAC2STR(dst));
+ add_note(wt, MSG_DEBUG, "Unexpected IP header length %u in "
+ "IPv4 packet (bssid=" MACSTR " str=" MACSTR
+ " dst=" MACSTR ")", ip->ihl, MAC2STR(bssid),
+ MAC2STR(src), MAC2STR(dst));
return;
}
if (ip->ihl * 4 > len) {
- wpa_printf(MSG_DEBUG, "Truncated IP header (ihl=%u len=%u) in "
- "IPv4 packet (bssid=" MACSTR " str=" MACSTR
- " dst=" MACSTR ")", ip->ihl, (unsigned) len,
- MAC2STR(bssid), MAC2STR(src), MAC2STR(dst));
+ add_note(wt, MSG_DEBUG, "Truncated IP header (ihl=%u len=%u) "
+ "in IPv4 packet (bssid=" MACSTR " str=" MACSTR
+ " dst=" MACSTR ")", ip->ihl, (unsigned) len,
+ MAC2STR(bssid), MAC2STR(src), MAC2STR(dst));
return;
}
switch (ip->protocol) {
case IPPROTO_ICMP:
rx_data_icmp(wt, bssid, sta_addr, ip->daddr, ip->saddr,
- payload, plen);
+ payload, plen, peer_addr);
break;
}
}
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