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/*****************************************************************************//***
* Copyright(c) <2017>, AT&T Intellectual Property. All other 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement: This product includes
* software developed by the AT&T.
* 4. Neither the name of AT&T nor the names of its contributors may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY AT&T INTELLECTUAL PROPERTY ''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 AT&T INTELLECTUAL PROPERTY 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.
*****************************************************************************/
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
#include "evel.h"
#include "afx_ves_reporter.h"
/**************************************************************************//**
* Thread function to Monitor Ethernet links
* Checks status of afx inout and afx output service every service monitor
* interval. It reports fault event at startup and whenever status changes
*
* @param threadarg Thread arguments for startup message
*
* @retvalue int Success 1 service running 0 service inactive
*****************************************************************************/
void *LinkMonitorAfxThread(void *threadarg)
{
int taskid, sum;
char *hello_msg;
struct thread_data *my_data;
FILE *fp;
char const* const fileName = AFX_INTERFACE_FILE;
char line[256];
char cmd[256];
char intf[256];
char descr[256];
char linkdata[256];
int linkcount = 0;
char *search = ":";
char *token;
char *pch;
time_t filetime = 0;
int newrun = 1;
int n_spaces = 0, i;
char ** res = NULL;
char *pos;
int tlinkstat;
LINKSTAT intfstats[MAX_INTERFACES];
char vesevid[128];
int status = 1; /** VFS Status is Active **/
sleep(1);
my_data = (struct thread_data *) threadarg;
taskid = my_data->thread_id;
sum = my_data->sum;
hello_msg = my_data->message;
EVEL_INFO("AFX: Linkmon Thread %d: %s Sum=%d\n", taskid, hello_msg, sum);
while(1)
{
/*Check if file is modified recently */
if( file_is_modified(fileName, &filetime) ) newrun = 1;
FILE* file = fopen(fileName, "r"); /* should check the result */
if( file == NULL ){
EVEL_ERROR("AFX: Linkmon Interface config file unavailable\n");
pthread_exit(NULL);
}
while ( file != NULL && fgets(line, sizeof(line), file)) {
/* note that fgets don't strip the terminating \n, checking its
presence would allow to handle lines longer that sizeof(line) */
sscanf(line,"%s %s",intf,descr);
//remove_spaces(line);
if ((pos=strchr(line, '\n')) != NULL)
*pos = '\0';
//printf("%s", line);
sprintf(cmd,"/sbin/ethtool %s\n", intf);
//printf("%s", cmd);
if( newrun ){
strcpy(intfstats[linkcount].linkname,intf);
strcpy(intfstats[linkcount].linkdescr,line);
}
/* Open the ethtool interface command for reading. */
fp = popen(cmd, "r");
if (fp == NULL) {
EVEL_DEBUG("AFX Linkmon: Failed to run command\n" );
//pthread_exit(NULL);
sleep(LINK_MONITOR_INTERVAL);
continue;
}
while( !feof(fp) ) {
/* Read the output a line at a time - output it. */
while (fgets(linkdata, sizeof(linkdata)-1, fp) != NULL) {
//EVEL_INFO("AFX: LinkMon :%s:",linkdata);
if ((pos=strchr(linkdata, '\n')) != NULL)
*pos = '\0';
if( strstr(linkdata,"Supported link modes"))
{
pch = strstr(linkdata, search);
while( pch != NULL &&( *pch == ':' || *pch == ' ')) pch++;
if(pch!=NULL){
//printf("Link mode %s\n",pch);
strcpy(intfstats[linkcount].linkmode,pch);
}
}
else if( strstr(linkdata,"Speed"))
{
token = strtok(linkdata, search);
token = strtok(NULL, search);
intfstats[linkcount].speedmbps = atoi(token);
//printf("Link speed %d\n",intfstats[linkcount].speedmbps);
}
else if( strstr(linkdata,"Link detected:"))
{
/* parse link data for connectivity */
token = strtok(linkdata, search);
token = strtok(NULL, search);
while( *token == ' ') token++;
if( !strcmp(token,"yes")){
tlinkstat = 1;
} else {
tlinkstat = 0;
}
if( newrun || tlinkstat != intfstats[linkcount].linkstat)
{
EVEL_DEBUG("AFX LinkMon Status changed report fault\n");
if( tlinkstat == 1 ){
sprintf(vesevid,"Fault_vAfx_LinkState_%s",oam_intfaddr);
report_fault("Fault_vAfx_Link_Status",vesevid,EVEL_SEVERITY_NORMAL,"link",intfstats[linkcount].linkdescr,"link up trap_alarm","physical or logical connection to a remote router is up","remrouter","rname",NULL, status);
} else {
sprintf(vesevid,"Fault_vAfx_LinkState_%s",oam_intfaddr);
report_fault("Fault_vAfx_Link_Status",vesevid,EVEL_SEVERITY_CRITICAL,"link",intfstats[linkcount].linkdescr,"link down trap_alarm","physical or logical connection to a remote router is down","remrouter","rname",NULL, status);
}
}
intfstats[linkcount].linkstat = tlinkstat;
}
else if( strstr(linkdata,"Cannot get link status:"))
{
sprintf(vesevid,"Fault_vAfx_LinkState_%s",oam_intfaddr);
report_fault("Fault_vAfx_Link_Status",vesevid,EVEL_SEVERITY_CRITICAL,"link",intfstats[linkcount].linkname,"link down trap_alarm","physical or logical connection to a remote router is down","remrouter","rname",NULL, status);
}
}
}
/* close */
pclose(fp);
linkcount++;
}
newrun = linkcount = 0;
if(file)fclose(file);
sleep(LINK_MONITOR_INTERVAL);
}
pthread_exit(NULL);
}
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