ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wlantest/rx_ip.c b/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wlantest/rx_ip.c
new file mode 100644
index 0000000..b0fdd20
--- /dev/null
+++ b/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wlantest/rx_ip.c
@@ -0,0 +1,184 @@
+/*
+ * Received Data frame processing for IPv4 packets
+ * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+#include <netinet/ip.h>
+#include <netinet/ip_icmp.h>
+
+#include "utils/common.h"
+#include "wlantest.h"
+
+
+#ifndef __APPLE__
+
+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 *peer_addr)
+{
+ struct in_addr addr;
+ char buf[20];
+ const struct icmphdr *hdr;
+ u16 id, seq;
+ struct wlantest_bss *bss;
+ struct wlantest_sta *sta;
+
+ hdr = (const struct icmphdr *) data;
+ if (len < 4)
+ return;
+
+ /* TODO: check hdr->checksum */
+
+ if (hdr->type != ICMP_ECHOREPLY && hdr->type != ICMP_ECHO)
+ return;
+ if (len < 8)
+ return;
+
+ id = ntohs(hdr->un.echo.id);
+ seq = ntohs(hdr->un.echo.sequence);
+
+ addr.s_addr = dst;
+ snprintf(buf, sizeof(buf), "%s", inet_ntoa(addr));
+ addr.s_addr = src;
+ 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) {
+ add_note(wt, MSG_INFO, "No BSS " MACSTR
+ " known for ICMP packet", MAC2STR(bssid));
+ return;
+ }
+
+ if (sta_addr == NULL)
+ return; /* FromDS broadcast ping */
+
+ sta = sta_find(bss, sta_addr);
+ if (sta == NULL) {
+ add_note(wt, MSG_INFO, "No STA " MACSTR
+ " known for ICMP packet", MAC2STR(sta_addr));
+ 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);
+}
+
+#endif /* __APPLE__ */
+
+
+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 *peer_addr)
+{
+ struct ip ip;
+ const u8 *payload;
+ size_t plen;
+ uint16_t frag_off, ip_len;
+
+ if (len < sizeof(ip))
+ return;
+ os_memcpy(&ip, data, sizeof(ip));
+
+ if (ip.ip_v != 4) {
+ 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.ip_v, MAC2STR(bssid),
+ MAC2STR(src), MAC2STR(dst));
+ return;
+ }
+ if (ip.ip_hl * 4 < sizeof(ip)) {
+ add_note(wt, MSG_DEBUG, "Unexpected IP header length %u in "
+ "IPv4 packet (bssid=" MACSTR " str=" MACSTR
+ " dst=" MACSTR ")", ip.ip_hl, MAC2STR(bssid),
+ MAC2STR(src), MAC2STR(dst));
+ return;
+ }
+ if (ip.ip_hl * 4 > len) {
+ add_note(wt, MSG_DEBUG, "Truncated IP header (ihl=%u len=%u) "
+ "in IPv4 packet (bssid=" MACSTR " str=" MACSTR
+ " dst=" MACSTR ")", ip.ip_hl, (unsigned) len,
+ MAC2STR(bssid), MAC2STR(src), MAC2STR(dst));
+ return;
+ }
+
+ /* TODO: check header checksum in ip.ip_sum */
+
+ frag_off = be_to_host16(ip.ip_off);
+ if (frag_off & 0x1fff) {
+ wpa_printf(MSG_EXCESSIVE, "IP fragment reassembly not yet "
+ "supported");
+ return;
+ }
+
+ ip_len = be_to_host16(ip.ip_len);
+ if (ip_len > len)
+ return;
+ if (ip_len < len)
+ len = ip_len;
+
+ payload = data + 4 * ip.ip_hl;
+ plen = len - 4 * ip.ip_hl;
+
+ switch (ip.ip_p) {
+#ifndef __APPLE__
+ case IPPROTO_ICMP:
+ rx_data_icmp(wt, bssid, sta_addr, ip.ip_dst.s_addr,
+ ip.ip_src.s_addr, payload, plen, peer_addr);
+ break;
+#endif /* __APPLE__ */
+ }
+}