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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_raw.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_raw.c
new file mode 100644
index 0000000..4a40864
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_raw.c
@@ -0,0 +1,100 @@
+/**
+ * @file
+ * SNMP RAW API frontend.
+ */
+
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Dirk Ziegelmeier <dziegel@gmx.de>
+ */
+
+#include "lwip/apps/snmp_opts.h"
+#include "lwip/ip_addr.h"
+
+#if LWIP_SNMP && SNMP_USE_RAW
+
+#include "lwip/udp.h"
+#include "lwip/ip.h"
+#include "snmp_msg.h"
+
+/* lwIP UDP receive callback function */
+static void
+snmp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port)
+{
+ LWIP_UNUSED_ARG(arg);
+
+ snmp_receive(pcb, p, addr, port);
+
+ pbuf_free(p);
+}
+
+err_t
+snmp_sendto(void *handle, struct pbuf *p, const ip_addr_t *dst, u16_t port)
+{
+ return udp_sendto((struct udp_pcb*)handle, p, dst, port);
+}
+
+u8_t
+snmp_get_local_ip_for_dst(void* handle, const ip_addr_t *dst, ip_addr_t *result)
+{
+ struct udp_pcb* udp_pcb = (struct udp_pcb*)handle;
+ struct netif *dst_if;
+ const ip_addr_t* dst_ip;
+
+ LWIP_UNUSED_ARG(udp_pcb); /* unused in case of IPV4 only configuration */
+
+ ip_route_get_local_ip(&udp_pcb->local_ip, dst, dst_if, dst_ip);
+
+ if ((dst_if != NULL) && (dst_ip != NULL)) {
+ ip_addr_copy(*result, *dst_ip);
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+/**
+ * @ingroup snmp_core
+ * Starts SNMP Agent.
+ * Allocates UDP pcb and binds it to IP_ANY_TYPE port 161.
+ */
+void
+snmp_init(void)
+{
+ err_t err;
+
+ struct udp_pcb *snmp_pcb = udp_new_ip_type(IPADDR_TYPE_ANY);
+ LWIP_ERROR("snmp_raw: no PCB", (snmp_pcb != NULL), return;);
+
+ snmp_traps_handle = snmp_pcb;
+
+ udp_recv(snmp_pcb, snmp_recv, (void *)SNMP_IN_PORT);
+ err = udp_bind(snmp_pcb, IP_ANY_TYPE, SNMP_IN_PORT);
+ LWIP_ERROR("snmp_raw: Unable to bind PCB", (err == ERR_OK), return;);
+}
+
+#endif /* LWIP_SNMP && SNMP_USE_RAW */