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98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/**
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* @file
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* SNMP netconn frontend.
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*/
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* Author: Dirk Ziegelmeier <dziegel@gmx.de>
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*/
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#include "lwip/apps/snmp_opts.h"
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#if LWIP_SNMP && SNMP_USE_NETCONN
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#include "lwip/api.h"
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#include "lwip/udp.h"
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#include "snmp_msg.h"
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#include "lwip/sys.h"
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/** SNMP netconn API worker thread */
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static void
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snmp_netconn_thread(void *arg)
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{
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struct netconn *conn;
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struct netbuf *buf;
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err_t err;
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LWIP_UNUSED_ARG(arg);
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conn = netconn_new(NETCONN_UDP);
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LWIP_ERROR("snmp_netconn: invalid conn", (conn != NULL), return;);
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/*trap_msg.handle = conn;*/
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/*trap_msg.lip = &conn->pcb.udp->local_ip;*/
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/* Bind to SNMP port with default IP address */
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netconn_bind(conn, IP_ADDR_ANY, SNMP_IN_PORT);
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do {
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err = netconn_recv(conn, &buf);
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if (err == ERR_OK) {
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snmp_receive(conn, buf->p, &buf->addr, buf->port);
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}
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if(buf != NULL) {
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netbuf_delete(buf);
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}
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} while(1);
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}
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err_t
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snmp_sendto(void *handle, struct pbuf *p, const ip_addr_t *dst, u16_t port)
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{
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err_t result;
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struct netbuf buf;
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memset(&buf, 0, sizeof(buf));
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buf.p = p;
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result = netconn_sendto((struct netconn*)handle, &buf, dst, port);
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return result;
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}
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/**
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* Starts SNMP Agent.
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*/
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void
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snmp_init(void)
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{
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sys_thread_new("snmp_netconn", snmp_netconn_thread, NULL, SNMP_STACK_SIZE, SNMP_THREAD_PRIO);
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}
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#endif /* LWIP_SNMP && SNMP_USE_NETCONN */
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