1 files changed, 112 insertions, 0 deletions
diff --git a/agent/mibgroup/hardware/cpu/cpu_nlist.c b/agent/mibgroup/hardware/cpu/cpu_nlist.c
new file mode 100644
index 0000000..974028a
--- /dev/null
+++ b/agent/mibgroup/hardware/cpu/cpu_nlist.c
@@ -0,0 +1,112 @@
+/*
+ *   nlist() interface
+ *     e.g. FreeBSD
+ */
+#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 <net-snmp/agent/hardware/cpu.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/resource.h>
+
+#ifdef HAVE_SYS_DKSTAT_H
+#include <sys/dkstat.h>
+#endif
+#ifdef HAVE_SYS_SYSCTL_H
+#include <sys/sysctl.h>
+#endif
+#ifdef HAVE_SYS_VMMETER_H
+#include <sys/vmmeter.h>
+#endif
+#ifdef HAVE_VM_VM_PARAM_H
+#include <vm/vm_param.h>
+#endif
+#ifdef HAVE_VM_VM_EXTERN_H
+#include <vm/vm_extern.h>
+#endif
+
+#define CPU_SYMBOL  "cp_time"
+#define MEM_SYMBOL  "cnt"
+
+netsnmp_feature_require(hardware_cpu_copy_stats)
+void _cpu_copy_stats( netsnmp_cpu_info *cpu );
+
+    /*
+     * Initialise the list of CPUs on the system
+     *   (including descriptions)
+     */
+void init_cpu_nlist( void ) {
+    int            n;
+    size_t         i;
+    int            ncpu_mib[] = { CTL_HW, HW_NCPU  };
+    int           model_mib[] = { CTL_HW, HW_MODEL };
+    char           descr[ SNMP_MAXBUF ];
+    netsnmp_cpu_info     *cpu = netsnmp_cpu_get_byIdx( -1, 1 );
+    strcpy(cpu->name, "Overall CPU statistics");
+
+    i = sizeof(n);
+    sysctl(ncpu_mib,  2, &n,    &i, NULL, 0);
+    i = sizeof(descr);
+    sysctl(model_mib, 2, descr, &i, NULL, 0);
+
+    if ( n <= 0 )
+        n = 1;   /* Single CPU system */
+    for ( i=0; i<n; i++ ) {
+        cpu = netsnmp_cpu_get_byIdx( i, 1 );
+        cpu->status = 2;  /* running */
+        sprintf(cpu->name, "cpu%d", i);
+        sprintf(cpu->descr, "%s", descr);
+    }
+    cpu_num = n;
+}
+
+
+    /*
+     * Load the latest CPU usage statistics
+     */
+int netsnmp_cpu_arch_load( netsnmp_cache *cache, void *magic ) {
+    long   cpu_stats[CPUSTATES];
+    struct vmmeter mem_stats;
+    netsnmp_cpu_info *cpu = netsnmp_cpu_get_byIdx( -1, 0 );
+
+    auto_nlist( CPU_SYMBOL, (char *) cpu_stats, sizeof(cpu_stats));
+    auto_nlist( MEM_SYMBOL, (char *)&mem_stats, sizeof(mem_stats));
+
+    cpu->user_ticks = (unsigned long long)cpu_stats[CP_USER];
+    cpu->nice_ticks = (unsigned long long)cpu_stats[CP_NICE];
+    cpu->sys2_ticks = (unsigned long long)cpu_stats[CP_SYS]+cpu_stats[CP_INTR];
+    cpu->idle_ticks = (unsigned long long)cpu_stats[CP_IDLE];
+    cpu->kern_ticks = (unsigned long long)cpu_stats[CP_SYS];
+    cpu->intrpt_ticks = (unsigned long long)cpu_stats[CP_INTR];
+        /* wait_ticks, sirq_ticks unused */
+
+        /*
+         * Interrupt/Context Switch statistics
+         *   XXX - Do these really belong here ?
+         */
+#if defined(openbsd2) || defined(darwin)
+    cpu->swapIn  = (unsigned long long)mem_stats.v_swpin;
+    cpu->swapOut = (unsigned long long)mem_stats.v_swpout;
+#else
+    cpu->swapIn  = (unsigned long long)mem_stats.v_swappgsin+mem_stats.v_vnodepgsin;
+    cpu->swapOut = (unsigned long long)mem_stats.v_swappgsout+mem_stats.v_vnodepgsout;
+#endif
+    cpu->nInterrupts  = (unsigned long long)mem_stats.v_intr;
+    cpu->nCtxSwitches = (unsigned long long)mem_stats.v_swtch;
+
+#ifdef PER_CPU_INFO
+    for ( i = 0; i < n; i++ ) {
+        cpu = netsnmp_cpu_get_byIdx( i, 0 );
+        /* XXX - per-CPU statistics */
+    }
+#else
+        /* Copy "overall" figures to cpu0 entry */
+    _cpu_copy_stats( cpu );
+#endif
+
+    return 0;
+}