diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_netconn.c')
-rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_netconn.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_netconn.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_netconn.c new file mode 100644 index 0000000..24c3e26 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_netconn.c @@ -0,0 +1,121 @@ +/** + * @file + * SNMP netconn 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" + +#if LWIP_SNMP && SNMP_USE_NETCONN + +#include <string.h> +#include "lwip/api.h" +#include "lwip/ip.h" +#include "lwip/udp.h" +#include "snmp_msg.h" +#include "lwip/sys.h" + +/** SNMP netconn API worker thread */ +static void +snmp_netconn_thread(void *arg) +{ + struct netconn *conn; + struct netbuf *buf; + err_t err; + LWIP_UNUSED_ARG(arg); + + /* Bind to SNMP port with default IP address */ +#if LWIP_IPV6 + conn = netconn_new(NETCONN_UDP_IPV6); + netconn_bind(conn, IP6_ADDR_ANY, SNMP_IN_PORT); +#else /* LWIP_IPV6 */ + conn = netconn_new(NETCONN_UDP); + netconn_bind(conn, IP4_ADDR_ANY, SNMP_IN_PORT); +#endif /* LWIP_IPV6 */ + LWIP_ERROR("snmp_netconn: invalid conn", (conn != NULL), return;); + + snmp_traps_handle = conn; + + do { + err = netconn_recv(conn, &buf); + + if (err == ERR_OK) { + snmp_receive(conn, buf->p, &buf->addr, buf->port); + } + + if (buf != NULL) { + netbuf_delete(buf); + } + } while(1); +} + +err_t +snmp_sendto(void *handle, struct pbuf *p, const ip_addr_t *dst, u16_t port) +{ + err_t result; + struct netbuf buf; + + memset(&buf, 0, sizeof(buf)); + buf.p = p; + result = netconn_sendto((struct netconn*)handle, &buf, dst, port); + + return result; +} + +u8_t +snmp_get_local_ip_for_dst(void* handle, const ip_addr_t *dst, ip_addr_t *result) +{ + struct netconn* conn = (struct netconn*)handle; + struct netif *dst_if; + const ip_addr_t* dst_ip; + + LWIP_UNUSED_ARG(conn); /* unused in case of IPV4 only configuration */ + + ip_route_get_local_ip(&conn->pcb.udp->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; + } +} + +/** + * Starts SNMP Agent. + */ +void +snmp_init(void) +{ + sys_thread_new("snmp_netconn", snmp_netconn_thread, NULL, SNMP_STACK_SIZE, SNMP_THREAD_PRIO); +} + +#endif /* LWIP_SNMP && SNMP_USE_NETCONN */ |