void
GetInterfaceInfo(void)
{
int fd, len, i, j;
struct ifreq ifbuf[512], ifr, *ifp;
struct ifconf list;
struct sockaddr_in *sin;
struct hostent *hp;
char *sp;
char ip[CF_MAXVARSIZE];
char name[CF_MAXVARSIZE];
Debug("GetInterfaceInfo()\n");
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
CfLog(cferror, "Couldn't open socket", "socket");
exit(1);
}
list.ifc_len = sizeof(ifbuf);
list.ifc_req = ifbuf;
#ifdef SIOCGIFCONF
if (ioctl(fd, SIOCGIFCONF, &list) == -1 ||
(list.ifc_len < (sizeof(struct ifreq))))
#else
if (ioctl(fd, OSIOCGIFCONF, &list) == -1 ||
(list.ifc_len < (sizeof(struct ifreq))))
#endif
{
CfLog(cferror, "Couldn't get interfaces", "ioctl");
exit(1);
}
for (j = 0, len = 0, ifp = list.ifc_req; len < list.ifc_len;
len+=SIZEOF_IFREQ(*ifp), j++, ifp=&ifbuf[j]) {
if (ifp->ifr_addr.sa_family == 0) {
continue;
}
Verbose("Interface %d: %s\n", j+1, ifp->ifr_name);
if(g_underscore_classes) {
snprintf(g_vbuff, CF_BUFSIZE, "_net_iface_%s",
CanonifyName(ifp->ifr_name));
} else {
snprintf(g_vbuff, CF_BUFSIZE, "net_iface_%s",
CanonifyName(ifp->ifr_name));
}
AddClassToHeap(g_vbuff);
if (ifp->ifr_addr.sa_family == AF_INET) {
strncpy(ifr.ifr_name, ifp->ifr_name, sizeof(ifp->ifr_name));
if (ioctl(fd,SIOCGIFFLAGS,&ifr) == -1) {
CfLog(cferror, "No such network device", "ioctl");
close(fd);
return;
}
/*
* Used to check if interface was "up" if ((ifr.ifr_flags &
* IFF_UP) && !(ifr.ifr_flags & IFF_LOOPBACK)) Now check
* whether it is configured ...
*/
if ((ifr.ifr_flags & IFF_BROADCAST) &&
!(ifr.ifr_flags & IFF_LOOPBACK)) {
sin=(struct sockaddr_in *)&ifp->ifr_addr;
snprintf(name, CF_MAXVARSIZE-1, "ipv4[%s]",
CanonifyName(ifp->ifr_name));
AddMacroValue(g_contextid, name,
inet_ntoa(sin->sin_addr));
if ((hp = gethostbyaddr((char *)&(sin->sin_addr.s_addr),
sizeof(sin->sin_addr.s_addr), AF_INET)) == NULL) {
Debug("Host information for %s not found\n",
inet_ntoa(sin->sin_addr));
} else {
if (hp->h_name != NULL) {
Debug("Adding hostip %s..\n",
inet_ntoa(sin->sin_addr));
AddClassToHeap(CanonifyName(inet_ntoa(sin->sin_addr)));
Debug("Adding hostname %s..\n", hp->h_name);
AddClassToHeap(CanonifyName(hp->h_name));
for (i=0; hp->h_aliases[i] != NULL; i++) {
Debug("Adding alias %s..\n", hp->h_aliases[i]);
AddClassToHeap(CanonifyName(hp->h_aliases[i]));
}
/* Old style compat */
strcpy(ip,inet_ntoa(sin->sin_addr));
AppendItem(&g_ipaddresses, ip, "");
for (sp = ip+strlen(ip)-1; *sp != '.'; sp--) { }
*sp = '\0';
AddClassToHeap(CanonifyName(ip));
/* New style */
strcpy(ip, "ipv4_");
strcat(ip, inet_ntoa(sin->sin_addr));
AddClassToHeap(CanonifyName(ip));
for (sp = ip+strlen(ip)-1; (sp > ip); sp--) {
if (*sp == '.') {
*sp = '\0';
AddClassToHeap(CanonifyName(ip));
}
}
}
}
}
}
ifp = (struct ifreq *)((char *)ifp + SIZEOF_IFREQ(*ifp));
}
close(fd);
}
void GetInterfacesInfo(AgentType ag)
{
int fd, len, i, j, first_address = false, ipdefault = false;
struct ifreq ifbuf[CF_IFREQ], ifr, *ifp;
struct ifconf list;
struct sockaddr_in *sin;
struct hostent *hp;
char *sp, workbuf[CF_BUFSIZE];
char ip[CF_MAXVARSIZE];
char name[CF_MAXVARSIZE];
char last_name[CF_BUFSIZE];
Rlist *interfaces = NULL, *hardware = NULL, *ips = NULL;
CfDebug("GetInterfacesInfo()\n");
// Long-running processes may call this many times
DeleteItemList(IPADDRESSES);
IPADDRESSES = NULL;
memset(ifbuf, 0, sizeof(ifbuf));
InitIgnoreInterfaces();
last_name[0] = '\0';
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
{
CfOut(OUTPUT_LEVEL_ERROR, "socket", "Couldn't open socket");
exit(1);
}
list.ifc_len = sizeof(ifbuf);
list.ifc_req = ifbuf;
# ifdef SIOCGIFCONF
if (ioctl(fd, SIOCGIFCONF, &list) == -1 || (list.ifc_len < (sizeof(struct ifreq))))
# else
if ((ioctl(fd, OSIOCGIFCONF, &list) == -1) || (list.ifc_len < (sizeof(struct ifreq))))
# endif
{
CfOut(OUTPUT_LEVEL_ERROR, "ioctl", "Couldn't get interfaces - old kernel? Try setting CF_IFREQ to 1024");
exit(1);
}
last_name[0] = '\0';
for (j = 0, len = 0, ifp = list.ifc_req; len < list.ifc_len;
len += SIZEOF_IFREQ(*ifp), j++, ifp = (struct ifreq *) ((char *) ifp + SIZEOF_IFREQ(*ifp)))
{
if (ifp->ifr_addr.sa_family == 0)
{
continue;
}
if ((ifp->ifr_name == NULL) || (strlen(ifp->ifr_name) == 0))
{
continue;
}
/* Skip virtual network interfaces for Linux, which seems to be a problem */
if (IgnoreInterface(ifp->ifr_name))
{
continue;
}
if (strstr(ifp->ifr_name, ":"))
{
#ifdef __linux__
CfOut(OUTPUT_LEVEL_VERBOSE, "", "Skipping apparent virtual interface %d: %s\n", j + 1, ifp->ifr_name);
continue;
#endif
}
else
{
CfOut(OUTPUT_LEVEL_VERBOSE, "", "Interface %d: %s\n", j + 1, ifp->ifr_name);
}
// Ignore the loopback
if (strcmp(ifp->ifr_name, "lo") == 0)
{
continue;
}
if (strncmp(last_name, ifp->ifr_name, sizeof(ifp->ifr_name)) == 0)
{
first_address = false;
}
else
{
strncpy(last_name, ifp->ifr_name, sizeof(ifp->ifr_name));
if (!first_address)
{
NewScalar("sys", "interface", last_name, DATA_TYPE_STRING);
first_address = true;
}
}
snprintf(workbuf, CF_BUFSIZE, "net_iface_%s", CanonifyName(ifp->ifr_name));
HardClass(workbuf);
if (ifp->ifr_addr.sa_family == AF_INET)
{
strncpy(ifr.ifr_name, ifp->ifr_name, sizeof(ifp->ifr_name));
if (ioctl(fd, SIOCGIFFLAGS, &ifr) == -1)
{
CfOut(OUTPUT_LEVEL_ERROR, "ioctl", "No such network device");
continue;
}
if ((ifr.ifr_flags & IFF_UP) && (!(ifr.ifr_flags & IFF_LOOPBACK)))
{
sin = (struct sockaddr_in *) &ifp->ifr_addr;
if (IgnoreJailInterface(j + 1, sin))
{
CfOut(OUTPUT_LEVEL_VERBOSE, "", "Ignoring interface %d", j + 1);
continue;
}
CfDebug("Adding hostip %s..\n", inet_ntoa(sin->sin_addr));
HardClass(inet_ntoa(sin->sin_addr));
if ((hp =
gethostbyaddr((char *) &(sin->sin_addr.s_addr), sizeof(sin->sin_addr.s_addr), AF_INET)) == NULL)
{
CfDebug("No hostinformation for %s found\n", inet_ntoa(sin->sin_addr));
}
else
{
if (hp->h_name != NULL)
{
CfDebug("Adding hostname %s..\n", hp->h_name);
HardClass(hp->h_name);
if (hp->h_aliases != NULL)
{
for (i = 0; hp->h_aliases[i] != NULL; i++)
{
CfOut(OUTPUT_LEVEL_VERBOSE, "", "Adding alias %s..\n", hp->h_aliases[i]);
HardClass(hp->h_aliases[i]);
}
}
}
}
if (strcmp(inet_ntoa(sin->sin_addr), "0.0.0.0") == 0)
{
// Maybe we need to do something windows specific here?
CfOut(OUTPUT_LEVEL_VERBOSE, "", " !! Cannot discover hardware IP, using DNS value");
strcpy(ip, "ipv4_");
strcat(ip, VIPADDRESS);
AppendItem(&IPADDRESSES, VIPADDRESS, "");
RlistAppend(&ips, VIPADDRESS, RVAL_TYPE_SCALAR);
for (sp = ip + strlen(ip) - 1; (sp > ip); sp--)
{
if (*sp == '.')
{
*sp = '\0';
HardClass(ip);
}
}
strcpy(ip, VIPADDRESS);
i = 3;
for (sp = ip + strlen(ip) - 1; (sp > ip); sp--)
{
if (*sp == '.')
{
*sp = '\0';
snprintf(name, CF_MAXVARSIZE - 1, "ipv4_%d[%s]", i--, CanonifyName(VIPADDRESS));
NewScalar("sys", name, ip, DATA_TYPE_STRING);
}
}
continue;
}
strncpy(ip, "ipv4_", CF_MAXVARSIZE);
strncat(ip, inet_ntoa(sin->sin_addr), CF_MAXVARSIZE - 6);
HardClass(ip);
if (!ipdefault)
{
ipdefault = true;
NewScalar("sys", "ipv4", inet_ntoa(sin->sin_addr), DATA_TYPE_STRING);
strcpy(VIPADDRESS, inet_ntoa(sin->sin_addr));
}
AppendItem(&IPADDRESSES, inet_ntoa(sin->sin_addr), "");
RlistAppend(&ips, inet_ntoa(sin->sin_addr), RVAL_TYPE_SCALAR);
for (sp = ip + strlen(ip) - 1; (sp > ip); sp--)
{
if (*sp == '.')
{
*sp = '\0';
HardClass(ip);
}
}
// Set the IPv4 on interface array
strcpy(ip, inet_ntoa(sin->sin_addr));
if ((ag != AGENT_TYPE_KNOW) && (ag != AGENT_TYPE_GENDOC))
{
snprintf(name, CF_MAXVARSIZE - 1, "ipv4[%s]", CanonifyName(ifp->ifr_name));
}
else
{
snprintf(name, CF_MAXVARSIZE - 1, "ipv4[interface_name]");
}
NewScalar("sys", name, ip, DATA_TYPE_STRING);
i = 3;
for (sp = ip + strlen(ip) - 1; (sp > ip); sp--)
{
if (*sp == '.')
{
*sp = '\0';
if ((ag != AGENT_TYPE_KNOW) && (ag != AGENT_TYPE_GENDOC))
{
snprintf(name, CF_MAXVARSIZE - 1, "ipv4_%d[%s]", i--, CanonifyName(ifp->ifr_name));
}
else
{
snprintf(name, CF_MAXVARSIZE - 1, "ipv4_%d[interface_name]", i--);
}
NewScalar("sys", name, ip, DATA_TYPE_STRING);
}
}
}
// Set the hardware/mac address array
GetMacAddress(ag, fd, &ifr, ifp, &interfaces, &hardware);
}
}
close(fd);
NewList("sys", "interfaces", interfaces, DATA_TYPE_STRING_LIST);
NewList("sys", "hardware_addresses", hardware, DATA_TYPE_STRING_LIST);
NewList("sys", "ip_addresses", ips, DATA_TYPE_STRING_LIST);
RlistDestroy(interfaces);
RlistDestroy(hardware);
RlistDestroy(ips);
FindV6InterfacesInfo();
}
