u_char *
var_ipAddrEntry(struct variable *vp,
oid * name,
size_t * length,
int exact, size_t * var_len, WriteMethod ** write_method)
{
/*
* object identifier is of form:
* 1.3.6.1.2.1.4.20.1.?.A.B.C.D, where A.B.C.D is IP address.
* IPADDR starts at offset 10.
*/
oid lowest[14];
oid current[14], *op;
u_char *cp;
int lowinterface = 0;
#ifndef freebsd2
short interface;
#endif
#ifdef hpux11
static mib_ipAdEnt in_ifaddr, lowin_ifaddr;
#else
#if !defined(linux) && !defined(sunV3)
static struct in_ifaddr in_ifaddr, lowin_ifaddr;
#else
static struct ifnet lowin_ifnet;
#endif
static struct ifnet ifnet;
#endif /* hpux11 */
static in_addr_t addr_ret;
/*
* fill in object part of name for current (less sizeof instance part)
*/
memcpy((char *) current, (char *) vp->name,
(int) vp->namelen * sizeof(oid));
#if !defined(freebsd2) && !defined(hpux11) && !defined(linux)
Interface_Scan_Init();
#else
Address_Scan_Init();
#endif
for (;;) {
#if !defined(freebsd2) && !defined(hpux11) && !defined(linux)
if (Interface_Scan_Next(&interface, NULL, &ifnet, &in_ifaddr) == 0)
break;
#ifdef HAVE_STRUCT_IFNET_IF_ADDRLIST
if (ifnet.if_addrlist == 0)
continue; /* No address found for interface */
#endif
#else /* !freebsd2 && !hpux11 */
#if defined(linux)
if (Address_Scan_Next(&interface, &ifnet) == 0)
break;
#else
if (Address_Scan_Next(&interface, &in_ifaddr) == 0)
break;
#endif
#endif /* !freebsd2 && !hpux11 && !linux */
#ifdef hpux11
cp = (u_char *) & in_ifaddr.Addr;
#elif defined(linux) || defined(sunV3)
cp = (u_char *) & (((struct sockaddr_in *) &(ifnet.if_addr))->
sin_addr.s_addr);
#else
cp = (u_char *) & (((struct sockaddr_in *) &(in_ifaddr.ia_addr))->
sin_addr.s_addr);
#endif
op = current + 10;
*op++ = *cp++;
*op++ = *cp++;
*op++ = *cp++;
*op++ = *cp++;
if (exact) {
if (snmp_oid_compare(current, 14, name, *length) == 0) {
memcpy((char *) lowest, (char *) current,
14 * sizeof(oid));
lowinterface = interface;
#if defined(linux) || defined(sunV3)
lowin_ifnet = ifnet;
#else
lowin_ifaddr = in_ifaddr;
#endif
break; /* no need to search further */
}
} else {
if ((snmp_oid_compare(current, 14, name, *length) > 0) &&
(!lowinterface
|| (snmp_oid_compare(current, 14, lowest, 14) < 0))) {
/*
* if new one is greater than input and closer to input than
* previous lowest, save this one as the "next" one.
*/
lowinterface = interface;
#if defined(linux) || defined(sunV3)
lowin_ifnet = ifnet;
#else
lowin_ifaddr = in_ifaddr;
#endif
memcpy((char *) lowest, (char *) current,
14 * sizeof(oid));
}
}
}
#if defined(linux)
SNMP_FREE(ifc.ifc_buf);
#endif
if (!lowinterface)
return (NULL);
memcpy((char *) name, (char *) lowest, 14 * sizeof(oid));
*length = 14;
*write_method = (WriteMethod*)0;
*var_len = sizeof(long_return);
switch (vp->magic) {
case IPADADDR:
*var_len = sizeof(addr_ret);
#ifdef hpux11
addr_ret = lowin_ifaddr.Addr;
return (u_char *) & addr_ret;
#elif defined(linux) || defined(sunV3)
return (u_char *) & ((struct sockaddr_in *) &lowin_ifnet.if_addr)->
sin_addr.s_addr;
#else
return (u_char *) & ((struct sockaddr_in *) &lowin_ifaddr.
ia_addr)->sin_addr.s_addr;
#endif
case IPADIFINDEX:
long_return = lowinterface;
return (u_char *) & long_return;
case IPADNETMASK:
*var_len = sizeof(addr_ret);
#ifdef hpux11
addr_ret = lowin_ifaddr.NetMask;
return (u_char *) & addr_ret;
#elif defined(linux)
return (u_char *) & ((struct sockaddr_in *) &lowin_ifnet.
ia_subnetmask)->sin_addr.s_addr;
#elif !defined(sunV3)
addr_ret = lowin_ifaddr.ia_subnetmask;
return (u_char *) & addr_ret;
#endif
case IPADBCASTADDR:
#ifdef hpux11
long_return = lowin_ifaddr.BcastAddr & 1;
#elif defined(linux) || defined(sunV3)
*var_len = sizeof(long_return);
long_return =
ntohl(((struct sockaddr_in *) &lowin_ifnet.ifu_broadaddr)->
sin_addr.s_addr) & 1;
#elif defined(netbsd1)
long_return =
((struct sockaddr_in *) &lowin_ifaddr.ia_broadaddr)->sin_addr.
s_addr & 1;
#else
long_return =
ntohl(((struct sockaddr_in *) &lowin_ifaddr.ia_broadaddr)->
sin_addr.s_addr) & 1;
#endif
return (u_char *) & long_return;
case IPADREASMMAX:
#ifdef hpux11
long_return = lowin_ifaddr.ReasmMaxSize;
return (u_char *) & long_return;
#elif defined(NETSNMP_NO_DUMMY_VALUES)
return NULL;
#else
long_return = -1;
return (u_char *) & long_return;
#endif
default:
DEBUGMSGTL(("snmpd", "unknown sub-id %d in var_ipAddrEntry\n",
vp->magic));
}
return NULL;
}
u_char *
var_ipAddrEntry(struct variable *vp,
oid *name,
int *length,
int exact,
int *var_len,
WriteMethod **write_method)
{
/*
* object identifier is of form:
* 1.3.6.1.2.1.4.20.1.?.A.B.C.D, where A.B.C.D is IP address.
* IPADDR starts at offset 10.
*/
oid lowest[14];
oid current[14], *op;
u_char *cp;
int lowinterface=0;
short interface;
static struct in_ifaddr in_ifaddr;
#if !defined(linux) && !defined(sunV3)
static struct in_ifaddr lowin_ifaddr;
#else
static struct ifnet lowin_ifnet;
#endif
static struct ifnet ifnet;
/* fill in object part of name for current (less sizeof instance part) */
memcpy( (char *)current,(char *)vp->name, (int)vp->namelen * sizeof(oid));
#ifndef freebsd2
Interface_Scan_Init();
#else
Address_Scan_Init();
#endif
for (;;) {
#ifndef freebsd2
if (Interface_Scan_Next(&interface, NULL, &ifnet, &in_ifaddr) == 0)
break;
#ifdef STRUCT_IFNET_HAS_IF_ADDRLIST
if ( ifnet.if_addrlist == 0 )
continue; /* No address found for interface */
#endif
#else
if (Address_Scan_Next(&interface, &in_ifaddr) == 0)
break;
#endif /* freebsd2 */
#if defined(linux) || defined(sunV3)
cp = (u_char *)&(((struct sockaddr_in *) &(ifnet.if_addr))->sin_addr.s_addr);
#else
cp = (u_char *)&(((struct sockaddr_in *) &(in_ifaddr.ia_addr))->sin_addr.s_addr);
#endif
op = current + 10;
*op++ = *cp++;
*op++ = *cp++;
*op++ = *cp++;
*op++ = *cp++;
if (exact){
if (snmp_oid_compare(current, 14, name, *length) == 0){
memcpy( (char *)lowest,(char *)current, 14 * sizeof(oid));
lowinterface = interface;
#if defined(linux) || defined(sunV3)
lowin_ifnet = ifnet;
#else
lowin_ifaddr = in_ifaddr;
#endif
break; /* no need to search further */
}
} else {
if ((snmp_oid_compare(current, 14, name, *length) > 0) &&
(!lowinterface || (snmp_oid_compare(current, 14, lowest, 14) < 0))){
/*
* if new one is greater than input and closer to input than
* previous lowest, save this one as the "next" one.
*/
lowinterface = interface;
#if defined(linux) || defined(sunV3)
lowin_ifnet = ifnet;
#else
lowin_ifaddr = in_ifaddr;
#endif
memcpy( (char *)lowest,(char *)current, 14 * sizeof(oid));
}
}
}
if (!lowinterface) return(NULL);
memcpy( (char *)name,(char *)lowest, 14 * sizeof(oid));
*length = 14;
*write_method = 0;
*var_len = sizeof(long_return);
switch(vp->magic){
case IPADADDR:
#if defined(linux) || defined(sunV3)
return(u_char *) &((struct sockaddr_in *) &lowin_ifnet.if_addr)->sin_addr.s_addr;
#else
return(u_char *) &((struct sockaddr_in *) &lowin_ifaddr.ia_addr)->sin_addr.s_addr;
#endif
case IPADIFINDEX:
long_return = lowinterface;
return(u_char *) &long_return;
case IPADNETMASK:
#ifndef sunV3
#ifdef linux
return (u_char *)&((struct sockaddr_in *)&lowin_ifnet.ia_subnetmask)->sin_addr.s_addr;
#else
long_return = ntohl(lowin_ifaddr.ia_subnetmask);
return(u_char *) &long_return;
#endif
#endif
case IPADBCASTADDR:
#if defined(linux) || defined(sunV3)
long_return = ntohl(((struct sockaddr_in *) &lowin_ifnet.ifu_broadaddr)->sin_addr.s_addr) & 1;
#else
long_return = ntohl(((struct sockaddr_in *) &lowin_ifaddr.ia_broadaddr)->sin_addr.s_addr) & 1;
#endif
return(u_char *) &long_return;
case IPADREASMMAX:
long_return = -1;
return(u_char *) &long_return;
default:
ERROR_MSG("");
}
return NULL;
}