Adding support IPv6 to the fm-trap-subagent
Now the server that runs in the fm-trap-subagent is able to recieve messages when it runs in a StarlingX with IPv6 environment. This server is responsible to receive the alarm metada and generate the traps accordingly to the configuration in the master agent. Story: 2008132 Task: 41774 Signed-off-by: Pablo Bovina <pablo.bovina@windriver.com> Change-Id: I89b1d8e7c97d315637b12bcfea0269f2fcf8d452
This commit is contained in:
Pablo Bovina
parent
f15426c720
commit
5aca0dd166
@ -16,7 +16,8 @@ STRICT_FLAGS = -Wall -Wstrict-prototypes
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CFLAGS=-I. $(NETSNMPCFLAGS) $(STRICT_FLAGS) -fPIC
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SRCS = $(SOURCE)/$(PREFIX)Trap.c \
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$(SOURCE)/$(PREFIX)Subagent.c
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$(SOURCE)/$(PREFIX)Subagent.c \
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$(SOURCE)/$(PREFIX)Server.c
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OBJS = $(SRCS:.c=.o)
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@ -0,0 +1,444 @@
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/*
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* Copyright (c) 2021 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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*/
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#include <arpa/inet.h>
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#include <assert.h>
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#include <errno.h>
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#include <json-c/json.h>
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#include <netdb.h>
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#include <net-snmp/net-snmp-config.h>
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#include <net-snmp/net-snmp-includes.h>
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#include "wrsAlarmMIBServer.h"
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#include "wrsAlarmMIBTrap.h"
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#define HOST_NAME "localhost"
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#define MSG_SIZE 4
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#define BACKLOG 1
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#define ENABLE 1
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#define RETRIES 5
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#define RETRIES_MESSAGE_SIZE 20
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#define DEFAULT_ERROR -1
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#define DEFAULT_SUCCESS 0
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struct sServerInfo {
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char address[INET6_ADDRSTRLEN];
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int address_family;
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int port;
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int fd;
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int retries;
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int error;
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};
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/*
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Returns a ServerInfo error attribute.
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*/
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int get_error(ServerInfo server_info){
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assert(server_info != NULL);
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return server_info->error;
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}
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/*
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This procedure attempts to start to listen a Server.
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In case of success returns DEFAULT_SUCCESS.
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*/
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int init_server(ServerInfo server_info){
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assert(server_info != NULL);
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int optval = ENABLE;
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int error = DEFAULT_ERROR;
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int fd = DEFAULT_ERROR;
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snmp_log(LOG_INFO, "server init_server init on address: %s family: %d port:"
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" %d\n", server_info->address, server_info->address_family,
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server_info->port);
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fd = socket(server_info->address_family, SOCK_STREAM, 0);
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if( fd == DEFAULT_ERROR){
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snmp_log(LOG_ERR, "server init_server socket errno: (%d) (%s)\n", errno,
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strerror(errno));
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return DEFAULT_ERROR;
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}
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server_info->fd = fd;
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error = setsockopt(server_info->fd, SOL_SOCKET, SO_REUSEADDR,
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&optval, sizeof optval);
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if( error != DEFAULT_SUCCESS){
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snmp_log(LOG_ERR, "server init_server setsockopt errno: (%d) (%s)\n",
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errno, strerror(errno));
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close(server_info->fd);
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snmp_log(LOG_ERR, "server init_server setsockopt errno: (%d) (%s)\n",
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errno, strerror(errno));
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return DEFAULT_ERROR;
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}
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switch (server_info -> address_family) {
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//When address is IPv4
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case AF_INET:
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{
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struct sockaddr_in addr_4;
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addr_4.sin_family = AF_INET;
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addr_4.sin_port = htons(server_info -> port);
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error = inet_pton(AF_INET, server_info->address,
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&(addr_4.sin_addr.s_addr));
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if(error <= DEFAULT_SUCCESS){
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snmp_log(LOG_ERR,
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"server init_server inet_pton error ip address %s with "
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"error: %d errno: (%d) (%s)\n",
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server_info->address, error, errno, strerror(errno));
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close(server_info->fd);
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snmp_log(LOG_ERR,
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"server init_server closing socket errno: (%d) (%s)\n",
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errno, strerror(errno));
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return DEFAULT_ERROR;
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}
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error = bind(server_info->fd, (const struct sockaddr *)&addr_4,
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sizeof(addr_4));
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break;
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}
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//When address is IPv6
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case AF_INET6:
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{
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struct sockaddr_in6 addr_6;
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addr_6.sin6_family = AF_INET6;
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addr_6.sin6_port = htons(server_info->port);
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error = inet_pton(AF_INET6, server_info->address,
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&(addr_6.sin6_addr));
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if(error <= DEFAULT_SUCCESS){
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snmp_log(LOG_ERR, "server init_server inet_pton error ip"
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"address %s with error: %d errno: (%d) (%s)\n",
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server_info->address, error, errno, strerror(errno));
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close(server_info->fd);
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snmp_log(LOG_ERR, "server init_server closing socket errno:"
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"(%d) (%s)\n", errno, strerror(errno));
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return DEFAULT_ERROR;
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}
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error = bind(server_info->fd, (const struct sockaddr *)&addr_6,
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sizeof(addr_6));
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break;
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}
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//Should never get here, needed for completeness
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default:
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{
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snmp_log(LOG_ERR, "server init_server run default state %d\n",
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server_info -> address_family);
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close(server_info->fd);
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snmp_log(LOG_ERR, "server init_server closing socket errno:"
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"(%d) (%s)\n", errno, strerror(errno));
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return DEFAULT_ERROR;
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}
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}
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if (error != DEFAULT_SUCCESS) {
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snmp_log(LOG_ERR, "server init_server binding errno: (%d) (%s)\n",
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errno, strerror(errno));
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close(server_info->fd);
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snmp_log(LOG_ERR, "server init_server closing socket errno:"
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"(%d) (%s)\n", errno, strerror(errno));
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return DEFAULT_ERROR;
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}
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snmp_log(LOG_INFO, "server init_server bind success address: %s with "
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"port: %d\n", server_info->address, server_info->port);
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error = listen(server_info->fd, BACKLOG);
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if (error != DEFAULT_SUCCESS) {
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snmp_log(LOG_ERR, "server init_server listen fd:(%d) error, errno:"
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" (%d) (%s)\n", server_info->fd, errno, strerror(errno));
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close(server_info->fd);
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snmp_log(LOG_ERR, "server init_server closing socket errno: "
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"(%d) (%s)\n", errno, strerror(errno));
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return DEFAULT_ERROR;
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}
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snmp_log(LOG_INFO, "server listening fd: %d \n", server_info->fd);
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snmp_log(LOG_INFO, "server init_server success\n");
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return DEFAULT_SUCCESS;
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}
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/*
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This procedure returns a ServerInfo with host_name and port. Also with all
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metadata needed to start listening. In case of error returns NULL.
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*/
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ServerInfo get_server_info(const char * host_name, int port){
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struct addrinfo hints;
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struct addrinfo *result, *rp;
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struct in_addr in4addr_any;
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int error = -1;
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ServerInfo server_info;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_flags = AI_PASSIVE;
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hints.ai_protocol = 0;
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hints.ai_canonname = NULL;
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hints.ai_addr = NULL;
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hints.ai_next = NULL;
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snmp_log(LOG_INFO, "server get_server_info for hostname: %s\n", host_name);
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error = getaddrinfo(host_name, NULL, &hints, &result);
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if (error != 0) {
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snmp_log(LOG_ERR, "server get_server_info getaddrinfo: %s\n",
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gai_strerror(error));
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return NULL;
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}
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server_info = malloc(sizeof(struct sServerInfo));
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if(server_info == NULL){
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snmp_log(LOG_ERR, "server get_server_info error allocation ServerInfo \n");
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freeaddrinfo(result);
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result = NULL;
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return NULL;
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}
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server_info -> port = port;
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server_info -> error = DEFAULT_SUCCESS;
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server_info -> retries = RETRIES;
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for (rp = result; rp != NULL; rp = rp->ai_next) {
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if(rp->ai_family == AF_INET) {
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in4addr_any.s_addr = INADDR_ANY;
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inet_ntop(AF_INET, &in4addr_any,
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server_info->address, sizeof(server_info->address));
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server_info->address_family = AF_INET;
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snmp_log(LOG_INFO, "server get_server_info found IPv4: %s\n",
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server_info->address);
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break;
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} else if (rp->ai_family == AF_INET6) {
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inet_ntop(AF_INET6, &in6addr_any,
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server_info->address, sizeof(server_info->address));
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server_info->address_family = AF_INET6;
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snmp_log(LOG_INFO, "server get_server_info found IPv6: %s \n",
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server_info->address);
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break;
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}
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}
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if(rp == NULL){
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snmp_log(LOG_ERR, "server get_server_info ip not found at %s\n",
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host_name);
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free(server_info);
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server_info = NULL;
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}
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freeaddrinfo(result);
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result = NULL;
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return server_info;
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}
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/*
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This procedure intents to close the listener socket of the server and free the
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memory of ServerInfo. In case of error returns an non-zero value.
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*/
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int stop_alarm_server(ServerInfo server_info){
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assert(server_info!=NULL);
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int error = close(server_info->fd);
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snmp_log(LOG_ERR, "server stop_alarm_server close errno: (%d) (%s)\n",
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errno, strerror(errno));
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free(server_info);
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return error;
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}
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/*
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This procedures is responsible to listen for new connections.
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On error stops listening and return a non-zero value.
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*/
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int handle_server_messages(ServerInfo server_info){
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int socket_keep_running = 1;
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struct sockaddr cli;
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int connfd = 0;
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int read = 0;
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int bytes_read = 0;
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socklen_t cli_len= sizeof(cli);
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int length_bytes = 0;
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uint32_t length = 0;
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uint32_t nlength = 0;
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int error_msg_len = DEFAULT_SUCCESS;
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int error_processing = DEFAULT_ERROR;
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int partial_retries = 0;
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int terminate = 0;
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// reduce recall tries and check if max retries reached
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server_info->retries = server_info->retries -1;
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if(server_info->retries < 0 ){
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snmp_log(LOG_ERR,"server handle_server_messages handling messages MAX"
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"retries reach\n");
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return DEFAULT_ERROR;
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}
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// start handling messages
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snmp_log(LOG_INFO,"server handle_server_messages start handling messages\n");
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snmp_log(LOG_INFO,"server handle_server_messages retries counter: %d\n",
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server_info->retries);
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while (socket_keep_running) {
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// accepts connections
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connfd = accept(server_info->fd, (struct sockaddr*) &cli, &cli_len);
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if (connfd < DEFAULT_SUCCESS) {
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snmp_log(LOG_ERR,"server handle_server_messages acccept error, errno:"
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"(%d) (%s)\n", errno, strerror(errno));
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continue;
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}
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else{
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snmp_log(LOG_INFO,"server handle_server_messages client socket"
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" accepted %d\n", connfd);
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}
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// message length read
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length_bytes = 0;
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nlength = 0;
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error_msg_len = DEFAULT_SUCCESS;
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partial_retries = 0;
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while (length_bytes < MSG_SIZE) {
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read = recv(connfd, ((char *)&nlength) + length_bytes, MSG_SIZE - length_bytes, 0);
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if (read < DEFAULT_SUCCESS) {
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snmp_log(LOG_ERR,
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"\nserver handle_server_messages failed to receive message "
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"length errno: (%d) (%s)\n",
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errno, strerror(errno));
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error_msg_len = DEFAULT_ERROR;
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break;
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}
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if (partial_retries > RETRIES_MESSAGE_SIZE) {
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snmp_log(LOG_ERR,"server handle_server_messages message length "
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"max retries: (%d)\n", partial_retries);
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error_msg_len = DEFAULT_ERROR;
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break;
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}else{
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partial_retries ++;
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}
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length_bytes += read;
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}
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// if error in message len read then recall
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if(error_msg_len != DEFAULT_SUCCESS) {
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snmp_log(LOG_ERR,"server handle_server_messages recall because handle"
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" message len failed\n");
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close(connfd);
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snmp_log(LOG_ERR,"server handle_server_messages port close errno: "
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"(%d) (%s)\n", errno, strerror(errno));
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terminate = handle_server_messages(server_info);
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if(terminate == DEFAULT_ERROR){
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snmp_log(LOG_ERR,"server handle_server_messages recall failed"
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" with state %d \n", terminate);
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break;
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}
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}
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// message allocation memory
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length = ntohl(nlength);
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char *msg = malloc(length);
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// memory allocation error
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if(msg == NULL) {
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snmp_log(LOG_ERR,"server handle_server_messages recall because "
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"message malloc failed\n");
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close(connfd);
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snmp_log(LOG_ERR,"server handle_server_messages port close errno:"
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" (%d) (%s)\n",
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errno, strerror(errno));
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terminate = handle_server_messages(server_info);
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if(terminate == DEFAULT_ERROR){
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snmp_log(LOG_ERR,"server handle_server_messages recall failed"
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" with state %d \n", terminate);
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break;
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}
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}
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// message read
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bytes_read = recv(connfd, msg, length, 0);
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// no message arrived
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if (bytes_read < DEFAULT_SUCCESS) {
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free(msg);
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msg = NULL;
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snmp_log(LOG_ERR,"server handle_server_messages recall because"
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" message receive failed\n");
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close(connfd);
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snmp_log(LOG_ERR,"server handle_server_messages port close errno:"
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" (%d) (%s)\n", errno, strerror(errno));
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terminate = handle_server_messages(server_info);
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if(terminate == DEFAULT_ERROR){
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snmp_log(LOG_ERR,"server handle_server_messages recall failed"
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" with state %d \n", terminate);
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break;
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}
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}
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// error message incomplete
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if (bytes_read != length) {
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free(msg);
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msg = NULL;
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snmp_log(LOG_ERR,
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"server handle_server_messages recall because message bytes_read"
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" != length failed\n");
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close(connfd);
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snmp_log(LOG_ERR,"server handle_server_messages port close errno: "
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"(%d) (%s)\n", errno, strerror(errno));
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terminate = handle_server_messages(server_info);
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if(terminate == DEFAULT_ERROR){
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snmp_log(LOG_ERR,"server handle_server_messages recall failed "
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"with state %d \n", terminate);
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break;
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}
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}
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// process the message
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error_processing = process_json_alarm(msg);
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if(error_processing != DEFAULT_SUCCESS){
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snmp_log(LOG_ERR,"server handle_server_messages bad message "
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"processing.\n");
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}
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// free resources
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free(msg);
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msg = NULL;
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close(connfd);
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snmp_log(LOG_INFO,"server handle_server_messages port close fd: (%d),"
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" errno: (%d) (%s)\n", connfd, errno, strerror(errno));
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snmp_log(LOG_INFO,"server handle_server_messages message received ok.\n\n");
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}
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// if breaks return error
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snmp_log(LOG_ERR,"server handle_server_messages unespected error\n");
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return DEFAULT_ERROR;
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}
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/*
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This procedure starts the server workflow.
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In case of memory allocation failure returns NULL.
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In case of communication errors returns a ServerInfo with an error
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that can be retrieved by get_error() method.
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*/
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ServerInfo start_alarm_server (int port){
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ServerInfo server_info = get_server_info(HOST_NAME, port);
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int error = DEFAULT_ERROR;
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if( server_info != NULL){
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error = init_server(server_info);
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if(error == DEFAULT_SUCCESS){
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error = handle_server_messages(server_info);
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if (error != DEFAULT_SUCCESS){
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// unespected server error
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// retry until MAX tries
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server_info -> error = DEFAULT_ERROR;
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snmp_log(LOG_ERR,
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"server start_alarm_server stopped by error in "
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"handle_server_messages\n");
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}
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}else{
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// an error during starting up
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server_info -> error = DEFAULT_ERROR;
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snmp_log(LOG_ERR, "server start_alarm_server stopped by error "
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"in init_server\n");
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}
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}else{
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// cannot get host address info
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snmp_log(LOG_ERR, "server start_alarm_server stopped by error in "
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"get_server_info\n");
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}
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return server_info;
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}
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@ -0,0 +1,39 @@
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/*
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* Copyright (c) 2021 Wind River Systems, Inc.
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*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef WRSALARMMIBSERVER_H
|
||||
#define WRSALARMMIBSERVER_H
|
||||
|
||||
typedef struct sServerInfo * ServerInfo;
|
||||
|
||||
|
||||
/*
|
||||
Description: start listening in an specified port.
|
||||
Parameters: an integer port to start listening
|
||||
Return value: On error a NULL value if a memory allocation error occurs.
|
||||
On success a ServerInfo with the runtime information.
|
||||
*/
|
||||
ServerInfo start_alarm_server (int port);
|
||||
|
||||
|
||||
/*
|
||||
Description: stop listening for connections and free memory structures.
|
||||
Parameters: a ServerInfo not null value.
|
||||
Return value: a non-zero value on close port error.
|
||||
*/
|
||||
int stop_alarm_server(ServerInfo server_info);
|
||||
|
||||
|
||||
/*
|
||||
Description: retrieve the ServerInfo status.
|
||||
Parameters: a ServerInfo not null value .
|
||||
Return value: retrieves non-zero value indicating error status.
|
||||
*/
|
||||
int get_error(ServerInfo server_info);
|
||||
|
||||
|
||||
#endif /* WRSALARMMIBSERVER_H */
|
||||
@ -1,44 +1,18 @@
|
||||
/*
|
||||
* Copyright (c) 2020 Wind River Systems, Inc.
|
||||
* Copyright (c) 2020-2021 Wind River Systems, Inc.
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
*/
|
||||
|
||||
#include <ctype.h>
|
||||
#include <errno.h>
|
||||
#include <inttypes.h>
|
||||
#include <json-c/json.h>
|
||||
#include <netdb.h>
|
||||
#include <pthread.h>
|
||||
#include <signal.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include <net-snmp/net-snmp-config.h>
|
||||
#include <net-snmp/net-snmp-features.h>
|
||||
#include <net-snmp/net-snmp-includes.h>
|
||||
|
||||
#include <net-snmp/agent/net-snmp-agent-includes.h>
|
||||
#include "wrsAlarmMIBServer.h"
|
||||
|
||||
#include "wrsAlarmMIBTrap.h"
|
||||
|
||||
#define MSG_SIZE 4
|
||||
#define TCP_SOCKET_PORT 162
|
||||
#define ALARM_CRITICAL "wrsAlarmCritical"
|
||||
#define ALARM_MAJOR "wrsAlarmMajor"
|
||||
#define ALARM_MINOR "wrsAlarmMinor"
|
||||
#define ALARM_WARNING "wrsAlarmWarning"
|
||||
#define ALARM_MSG "wrsAlarmMessage"
|
||||
#define ALARM_CLEAR "wrsAlarmClear"
|
||||
#define ALARM_HIERARCHICAL_CLEAR "wrsAlarmHierarchicalClear"
|
||||
#define WARM_START "warmStart"
|
||||
|
||||
#define SA struct sockaddr
|
||||
|
||||
/*
|
||||
* If compiling within the net-snmp source code, this will trigger the feature
|
||||
@ -77,131 +51,6 @@ static void usage(void)
|
||||
"\t-L\tDo not open a log file; print all messages to stderr.\n");
|
||||
exit(0);
|
||||
}
|
||||
void initSocketServer(void)
|
||||
{
|
||||
int sockfd, connfd, read, bytes_read;
|
||||
int enable = 1;
|
||||
int socket_keep_running = 1;
|
||||
socklen_t len;
|
||||
struct sockaddr_in servaddr, cli;
|
||||
const int backlog = 1;
|
||||
|
||||
// socket create and verification
|
||||
sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
|
||||
if (sockfd == -1) {
|
||||
snmp_log(LOG_ERR,"Socket creation failed\n");
|
||||
exit(-1);
|
||||
}
|
||||
else
|
||||
snmp_log(LOG_INFO,"Socket successfully created\n");
|
||||
|
||||
setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int));
|
||||
|
||||
bzero(&servaddr, sizeof(servaddr));
|
||||
|
||||
// assign IP, PORT
|
||||
servaddr.sin_family = AF_INET;
|
||||
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
|
||||
servaddr.sin_port = htons(TCP_SOCKET_PORT);
|
||||
|
||||
// Binding newly created socket to given IP and verification
|
||||
if ((bind(sockfd, (SA *)&servaddr, sizeof(servaddr))) != 0) {
|
||||
close(sockfd);
|
||||
snmp_log(LOG_ERR,"Socket bind failed\n");
|
||||
exit(-1);
|
||||
}
|
||||
else
|
||||
snmp_log(LOG_INFO,"Socket successfully binded\n");
|
||||
|
||||
if ((listen(sockfd, backlog)) != 0) {
|
||||
snmp_log(LOG_ERR,"Failed to start server socket listen.\n");
|
||||
close(sockfd);
|
||||
exit(-1);
|
||||
}
|
||||
else {
|
||||
snmp_log(LOG_INFO,"Server listening\n");
|
||||
}
|
||||
|
||||
len = sizeof(cli);
|
||||
|
||||
while (socket_keep_running) {
|
||||
connfd = accept(sockfd, (SA *)&cli, &len);
|
||||
if (connfd < 0) {
|
||||
snmp_log(LOG_ERR,"Server acccept failed\n");
|
||||
close(sockfd);
|
||||
exit(-1);
|
||||
}
|
||||
else
|
||||
snmp_log(LOG_INFO,"Client socket accepted\n");
|
||||
|
||||
int length_bytes = 0;
|
||||
uint32_t length, nlength;
|
||||
|
||||
while (length_bytes < MSG_SIZE) {
|
||||
read = recv(connfd, ((char *)&nlength) + length_bytes, MSG_SIZE - length_bytes, 0);
|
||||
if (read == -1) {
|
||||
snmp_log(LOG_ERR,"Failed to receive message.\n");
|
||||
}
|
||||
length_bytes += read;
|
||||
}
|
||||
|
||||
length = ntohl(nlength);
|
||||
char *msg = malloc(length);
|
||||
bytes_read = recv(connfd, msg, length, 0);
|
||||
|
||||
if (bytes_read == -1) {
|
||||
snmp_log(LOG_ERR,"Failed to receive message.\n");
|
||||
}
|
||||
|
||||
if (bytes_read != length) {
|
||||
snmp_log(LOG_ERR,"recv: Premature EOF.\n");
|
||||
}
|
||||
|
||||
struct json_object *parsed_json = json_tokener_parse(msg);
|
||||
struct json_object *operation_type;
|
||||
json_object_object_get_ex(parsed_json, "operation_type", &operation_type);
|
||||
const char *opt_type = json_object_get_string(operation_type);
|
||||
|
||||
if (strcmp(ALARM_CLEAR, opt_type) == 0) {
|
||||
|
||||
send_wrsAlarmClear_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_HIERARCHICAL_CLEAR, opt_type) == 0) {
|
||||
|
||||
send_wrsAlarmHierarchicalClear_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_MSG, opt_type) == 0) {
|
||||
|
||||
send_wrsEventMessage_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_WARNING, opt_type) == 0) {
|
||||
|
||||
send_wrsAlarmWarning_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_MINOR, opt_type) == 0) {
|
||||
|
||||
send_wrsAlarmMinor_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_MAJOR, opt_type) == 0) {
|
||||
|
||||
send_wrsAlarmMajor_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_CRITICAL, opt_type) == 0) {
|
||||
|
||||
send_wrsAlarmCritical_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(WARM_START, opt_type) == 0) {
|
||||
|
||||
send_wrsWarmStart_trap();
|
||||
}
|
||||
else {
|
||||
send_wrsAlarmMessage_trap(parsed_json);
|
||||
}
|
||||
json_object_put(parsed_json);
|
||||
free(msg);
|
||||
}
|
||||
close(sockfd);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
@ -211,6 +60,8 @@ int main(int argc, char **argv)
|
||||
extern char *optarg;
|
||||
int dont_fork = 0, use_syslog = 0;
|
||||
char *agentx_socket = NULL;
|
||||
ServerInfo server_info = NULL;
|
||||
int server_info_error = -1;
|
||||
|
||||
while ((ch = getopt(argc, argv, "D:fHLM-:x:")) != EOF)
|
||||
switch (ch) {
|
||||
@ -318,7 +169,31 @@ int main(int argc, char **argv)
|
||||
keep_running = 1;
|
||||
signal(SIGTERM, stop_server);
|
||||
signal(SIGINT, stop_server);
|
||||
initSocketServer();
|
||||
|
||||
// server start listening
|
||||
server_info = start_alarm_server(TCP_SOCKET_PORT);
|
||||
|
||||
// if server stops
|
||||
if(server_info == NULL){
|
||||
// server memmory allocation errors
|
||||
snmp_log(LOG_ERR, "trap-subagent: stopping server, server_info NULL calling stop_server()\n");
|
||||
stop_server(SIGABRT);
|
||||
}else{
|
||||
// other server errors
|
||||
server_info_error = get_error(server_info);
|
||||
snmp_log(LOG_ERR, "trap-subagent: stopping server, server_info -> error: "
|
||||
"%d \n", server_info_error);
|
||||
// if error after closing
|
||||
if(stop_alarm_server(server_info) < 0){
|
||||
snmp_log(LOG_INFO, "trap-subagent: stop server failed %d\n", server_info_error);
|
||||
}else{
|
||||
snmp_log(LOG_INFO, "trap-subagent: stop server success\n");
|
||||
}
|
||||
// server_info to NULL
|
||||
server_info = NULL;
|
||||
stop_server(SIGABRT);
|
||||
}
|
||||
|
||||
while (keep_running) {
|
||||
/* if you use select(), see snmp_select_info() in snmp_api(3) */
|
||||
/* --- OR --- */
|
||||
@ -326,7 +201,21 @@ int main(int argc, char **argv)
|
||||
}
|
||||
|
||||
/* at shutdown time */
|
||||
|
||||
snmp_shutdown("wrsAlarmMIB");
|
||||
|
||||
if(server_info != NULL){
|
||||
// stop from SIGTERM or SIGINT
|
||||
snmp_log(LOG_INFO, "trap-subagent: signal received, calling stop_alarm_sever()\n");
|
||||
server_info_error = get_error(server_info);
|
||||
if( stop_alarm_server(server_info) < 0 ){
|
||||
snmp_log(LOG_INFO, "trap-subagent: stop server error: %d\n", server_info_error);
|
||||
}else{
|
||||
snmp_log(LOG_INFO, "trap-subagent: stop server success\n");
|
||||
}
|
||||
server_info = NULL;
|
||||
}
|
||||
|
||||
SOCK_CLEANUP;
|
||||
exit(0);
|
||||
}
|
||||
|
||||
@ -1,11 +1,12 @@
|
||||
/*
|
||||
* Copyright (c) 2020 Wind River Systems, Inc.
|
||||
* Copyright (c) 2020-2021 Wind River Systems, Inc.
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
*/
|
||||
|
||||
#include <net-snmp/net-snmp-config.h>
|
||||
#include <net-snmp/net-snmp-features.h>
|
||||
#include <net-snmp/net-snmp-includes.h>
|
||||
#include <net-snmp/agent/net-snmp-agent-includes.h>
|
||||
|
||||
@ -31,6 +32,15 @@
|
||||
#define EVENT_CAUSE "wrsEventProbableCause"
|
||||
#define EVENT_SERVICE_AFFECTING "wrsEventServiceAffecting"
|
||||
|
||||
#define ALARM_CRITICAL "wrsAlarmCritical"
|
||||
#define ALARM_MAJOR "wrsAlarmMajor"
|
||||
#define ALARM_MINOR "wrsAlarmMinor"
|
||||
#define ALARM_WARNING "wrsAlarmWarning"
|
||||
#define ALARM_MSG "wrsAlarmMessage"
|
||||
#define ALARM_CLEAR "wrsAlarmClear"
|
||||
#define ALARM_HIERARCHICAL_CLEAR "wrsAlarmHierarchicalClear"
|
||||
#define WARM_START "warmStart"
|
||||
|
||||
extern const oid snmptrap_oid[];
|
||||
extern const size_t snmptrap_oid_len;
|
||||
|
||||
@ -894,4 +904,51 @@ send_wrsWarmStart_trap()
|
||||
snmp_free_varbind( var_list );
|
||||
|
||||
return SNMP_ERR_NOERROR;
|
||||
}
|
||||
|
||||
int
|
||||
process_json_alarm(const char* msg )
|
||||
{
|
||||
|
||||
if(msg == NULL) {
|
||||
snmp_log(LOG_ERR,"JSON message alarm to processs is null\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
struct json_object *parsed_json = json_tokener_parse(msg);
|
||||
struct json_object *operation_type;
|
||||
json_object_object_get_ex(parsed_json, "operation_type", &operation_type);
|
||||
const char *opt_type = json_object_get_string(operation_type);
|
||||
|
||||
if (strcmp(ALARM_CLEAR, opt_type) == 0) {
|
||||
send_wrsAlarmClear_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_HIERARCHICAL_CLEAR, opt_type) == 0) {
|
||||
send_wrsAlarmHierarchicalClear_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_MSG, opt_type) == 0) {
|
||||
send_wrsEventMessage_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_WARNING, opt_type) == 0) {
|
||||
send_wrsAlarmWarning_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_MINOR, opt_type) == 0) {
|
||||
send_wrsAlarmMinor_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_MAJOR, opt_type) == 0) {
|
||||
send_wrsAlarmMajor_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(ALARM_CRITICAL, opt_type) == 0) {
|
||||
send_wrsAlarmCritical_trap(parsed_json);
|
||||
}
|
||||
else if (strcmp(WARM_START, opt_type) == 0) {
|
||||
send_wrsWarmStart_trap();
|
||||
}
|
||||
else {
|
||||
send_wrsAlarmMessage_trap(parsed_json);
|
||||
}
|
||||
|
||||
json_object_put(parsed_json);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -1,5 +1,5 @@
|
||||
/*
|
||||
* Copyright (c) 2020 Wind River Systems, Inc.
|
||||
* Copyright (c) 2020-2021 Wind River Systems, Inc.
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
@ -19,5 +19,6 @@ int send_wrsEventMessage_trap(struct json_object *);
|
||||
int send_wrsAlarmClear_trap(struct json_object *);
|
||||
int send_wrsAlarmHierarchicalClear_trap(struct json_object *);
|
||||
int send_wrsWarmStart_trap(void);
|
||||
int process_json_alarm(const char* msg);
|
||||
|
||||
#endif /* WRSALARMMIBTRAP_H */
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user