Add backtrace-based error path testing mechanism

[mech_eap.git] / wpa_supplicant / ctrl_iface.c

diff --git a/wpa_supplicant/ctrl_iface.c b/wpa_supplicant/ctrl_iface.c
index d0d70e9..21e5849 100644 (file)
--- a/wpa_supplicant/ctrl_iface.c
+++ b/wpa_supplicant/ctrl_iface.c
@@ -7562,6 +7562,44 @@ static int wpas_ctrl_get_alloc_fail(struct wpa_supplicant *wpa_s,
 #endif /* WPA_TRACE_BFD */
 }
 
+
+static int wpas_ctrl_test_fail(struct wpa_supplicant *wpa_s, char *cmd)
+{
+#ifdef WPA_TRACE_BFD
+       extern char wpa_trace_test_fail_func[256];
+       extern unsigned int wpa_trace_test_fail_after;
+       char *pos;
+
+       wpa_trace_test_fail_after = atoi(cmd);
+       pos = os_strchr(cmd, ':');
+       if (pos) {
+               pos++;
+               os_strlcpy(wpa_trace_test_fail_func, pos,
+                          sizeof(wpa_trace_test_fail_func));
+       } else {
+               wpa_trace_test_fail_after = 0;
+       }
+       return 0;
+#else /* WPA_TRACE_BFD */
+       return -1;
+#endif /* WPA_TRACE_BFD */
+}
+
+
+static int wpas_ctrl_get_fail(struct wpa_supplicant *wpa_s,
+                                   char *buf, size_t buflen)
+{
+#ifdef WPA_TRACE_BFD
+       extern char wpa_trace_test_fail_func[256];
+       extern unsigned int wpa_trace_test_fail_after;
+
+       return os_snprintf(buf, buflen, "%u:%s", wpa_trace_test_fail_after,
+                          wpa_trace_test_fail_func);
+#else /* WPA_TRACE_BFD */
+       return -1;
+#endif /* WPA_TRACE_BFD */
+}
+
 #endif /* CONFIG_TESTING_OPTIONS */
 
 
@@ -8579,6 +8617,11 @@ char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
                        reply_len = -1;
        } else if (os_strcmp(buf, "GET_ALLOC_FAIL") == 0) {
                reply_len = wpas_ctrl_get_alloc_fail(wpa_s, reply, reply_size);
+       } else if (os_strncmp(buf, "TEST_FAIL ", 10) == 0) {
+               if (wpas_ctrl_test_fail(wpa_s, buf + 10) < 0)
+                       reply_len = -1;
+       } else if (os_strcmp(buf, "GET_FAIL") == 0) {
+               reply_len = wpas_ctrl_get_fail(wpa_s, reply, reply_size);
 #endif /* CONFIG_TESTING_OPTIONS */
        } else if (os_strncmp(buf, "VENDOR_ELEM_ADD ", 16) == 0) {
                if (wpas_ctrl_vendor_elem_add(wpa_s, buf + 16) < 0)