Author: ngie
Date: Wed Jun 8 17:49:03 2016
New Revision: 301663
URL: https://svnweb.freebsd.org/changeset/base/301663
Log:
MFC r294507,r294567,r299466:
r294507 (by harti):
Fill the ifAlias leaf of the ifXTable with the interface description
if there is one available and it fits into the maximum size (64 characters).
r294567 (by bz):
Change the variable to a #define in order to make gcc happy which
otherwise will complain about "variably modified 'alias' at file scope".
Unbreaks the build on gcc platforms.
r299466 (by cem):
bsnmpd: Fix size of trapsink::comm to match other community arrays
This fixes a number of possible strcpy() buffer overruns between the various
community strings in trap.c.
CIDs: 1006820, 1006821, 1006822
Modified:
stable/10/contrib/bsnmp/snmp_mibII/mibII.c
stable/10/contrib/bsnmp/snmp_mibII/mibII.h
stable/10/contrib/bsnmp/snmp_mibII/mibII_interfaces.c
stable/10/contrib/bsnmp/snmpd/snmpd.h
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/contrib/bsnmp/snmp_mibII/mibII.c
==============================================================================
--- stable/10/contrib/bsnmp/snmp_mibII/mibII.c Wed Jun 8 17:44:22 2016
(r301662)
+++ stable/10/contrib/bsnmp/snmp_mibII/mibII.c Wed Jun 8 17:49:03 2016
(r301663)
@@ -443,6 +443,7 @@ mib_fetch_ifmib(struct mibif *ifp)
size_t len;
void *newmib;
struct ifmibdata oldmib = ifp->mib;
+ struct ifreq irr;
if (fetch_generic_mib(ifp, &oldmib) == -1)
return (-1);
@@ -514,6 +515,18 @@ mib_fetch_ifmib(struct mibif *ifp)
}
out:
+ strncpy(irr.ifr_name, ifp->name, sizeof(irr.ifr_name));
+ irr.ifr_buffer.buffer = MIBIF_PRIV(ifp)->alias;
+ irr.ifr_buffer.length = sizeof(MIBIF_PRIV(ifp)->alias);
+ if (ioctl(mib_netsock, SIOCGIFDESCR, &irr) == -1) {
+ MIBIF_PRIV(ifp)->alias[0] = 0;
+ if (errno != ENOMSG)
+ syslog(LOG_WARNING, "SIOCGIFDESCR (%s): %m", ifp->name);
+ } else if (irr.ifr_buffer.buffer == NULL) {
+ MIBIF_PRIV(ifp)->alias[0] = 0;
+ syslog(LOG_WARNING, "SIOCGIFDESCR (%s): too long (%zu)",
+ ifp->name, irr.ifr_buffer.length);
+ }
ifp->mibtick = get_ticks();
return (0);
}
Modified: stable/10/contrib/bsnmp/snmp_mibII/mibII.h
==============================================================================
--- stable/10/contrib/bsnmp/snmp_mibII/mibII.h Wed Jun 8 17:44:22 2016
(r301662)
+++ stable/10/contrib/bsnmp/snmp_mibII/mibII.h Wed Jun 8 17:49:03 2016
(r301663)
@@ -57,6 +57,9 @@
#include "snmp_mibII.h"
#include "mibII_tree.h"
+/* maximum size of the interface alias */
+#define MIBIF_ALIAS_SIZE (64 + 1)
+
/*
* Interface list and flags.
*/
@@ -77,6 +80,9 @@ struct mibif_private {
uint64_t hc_opackets;
uint64_t hc_imcasts;
uint64_t hc_ipackets;
+
+ /* this should be made public */
+ char alias[MIBIF_ALIAS_SIZE];
};
#define MIBIF_PRIV(IFP) ((struct mibif_private *)((IFP)->private))
Modified: stable/10/contrib/bsnmp/snmp_mibII/mibII_interfaces.c
==============================================================================
--- stable/10/contrib/bsnmp/snmp_mibII/mibII_interfaces.c Wed Jun 8
17:44:22 2016 (r301662)
+++ stable/10/contrib/bsnmp/snmp_mibII/mibII_interfaces.c Wed Jun 8
17:49:03 2016 (r301663)
@@ -528,7 +528,7 @@ op_ifxtable(struct snmp_context *ctx, st
break;
case LEAF_ifAlias:
- ret = string_get(value, "", -1);
+ ret = string_get(value, MIBIF_PRIV(ifp)->alias, -1);
break;
case LEAF_ifCounterDiscontinuityTime:
Modified: stable/10/contrib/bsnmp/snmpd/snmpd.h
==============================================================================
--- stable/10/contrib/bsnmp/snmpd/snmpd.h Wed Jun 8 17:44:22 2016
(r301662)
+++ stable/10/contrib/bsnmp/snmpd/snmpd.h Wed Jun 8 17:49:03 2016
(r301663)
@@ -307,7 +307,7 @@ struct trapsink {
struct asn_oid index;
u_int status;
int socket;
- u_char comm[SNMP_COMMUNITY_MAXLEN];
+ u_char comm[SNMP_COMMUNITY_MAXLEN + 1];
int version;
};
enum {
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