Imported Upstream version 5.7.2~dfsg

1 files changed, 132 insertions, 0 deletions

diff --git a/agent/mibgroup/hardware/cpu/cpu_sysinfo.c b/agent/mibgroup/hardware/cpu/cpu_sysinfo.c
new file mode 100644
index 0000000..ed1f357
--- /dev/null
+++ b/agent/mibgroup/hardware/cpu/cpu_sysinfo.c
@@ -0,0 +1,132 @@
+/*
+ *   sysinfo (sysget/sysmp) interface
+ *     e.g. IRIX 6.x
+ */
+#include <net-snmp/net-snmp-config.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 <unistd.h>
+#include <sys/types.h>
+#include <sys/sysmp.h>
+#include <sys/sysinfo.h>
+#include <sys/sysget.h>
+
+int cpu_count;
+int sinfo_ksize;
+struct sysinfo* sinfo_cpus;   /* individual cpu stats */
+struct sysinfo* sinfo_gen;    /* global stats */
+
+/*
+* Initialise the list of CPUs on the system
+*   (including descriptions)
+*/
+void init_cpu_sysinfo( void )
+{
+    int i;
+    netsnmp_cpu_info *cpu;
+    char tstr[1024];
+
+    cpu_count = sysmp(MP_NPROCS);
+
+    /* fetch struct sysinfo size in kernel */
+
+    if ((sinfo_ksize = sysmp(MP_SASZ, MPSA_SINFO)) < 0) {
+        snmp_log_perror("init_cpu_sysinfo: sysinfo scall interface not supported");
+        exit(1);
+    }
+
+    if (sizeof(struct sysinfo) != sinfo_ksize)
+    {
+        snmp_log_perror("init_cpu_sysinfo: size mismatch between userland and kernel sysinfo struct");
+	exit(1);
+    }
+
+    /* allocate sysinfo for all cpus + global stats */
+
+    sinfo_cpus = (struct sysinfo *) calloc(cpu_count, sinfo_ksize);
+    if (!sinfo_cpus) {
+        snmp_log_perror("init_cpu_sysinfo: Couldn't allocate memory bytes for sinfo_cpus");
+        exit(1);
+    }
+
+    sinfo_gen = (struct sysinfo *) calloc(1, sinfo_ksize);
+    if (!sinfo_gen) {
+        snmp_log_perror("init_cpu_sysinfo: Couldn't allocate memory bytes for sinfo_gen");
+        exit(1);
+    }
+
+    /* register cpus */
+
+    cpu = netsnmp_cpu_get_byIdx(-1, 1);
+    strcpy(cpu->name, "Overall CPU statistics");
+
+    for (i = 0; i < cpu_count ; ++i)
+    {
+       cpu = netsnmp_cpu_get_byIdx(i, 1);
+       sprintf(tstr, "cpu%d",i);
+       strcpy(cpu->name,  tstr);
+       strcpy(cpu->descr, "Central Processing Unit");
+    }
+}
+
+/*
+* Load the latest CPU usage statistics
+*/
+int netsnmp_cpu_arch_load( netsnmp_cache *cache, void *magic )
+{
+    int i;
+    netsnmp_cpu_info* cpu;
+    sgt_cookie_t ck;
+
+    /* fetch global stats */
+
+    cpu = netsnmp_cpu_get_byIdx(-1, 0);
+
+    if (sysmp(MP_SAGET, MPSA_SINFO, (char *) sinfo_gen, sinfo_ksize) < 0)
+    {
+        snmp_log_perror("netsnmp_cpu_arch_load: sysmp() failed");
+	exit(1);
+    }
+
+    DEBUGMSGTL(("cpu_sysinfo", "total cpu kernel: %lu\n", sinfo_gen->cpu[CPU_KERNEL]));
+    cpu->sys2_ticks  = (unsigned long long) sinfo_gen->cpu[CPU_KERNEL] + (unsigned long long) sinfo_gen->cpu[CPU_SXBRK] + (unsigned long long) sinfo_gen->cpu[CPU_INTR];
+    cpu->kern_ticks  = (unsigned long long) sinfo_gen->cpu[CPU_KERNEL];
+    cpu->intrpt_ticks = (unsigned long long) sinfo_gen->cpu[CPU_INTR];
+    cpu->user_ticks = (unsigned long long) sinfo_gen->cpu[CPU_USER];
+    cpu->wait_ticks   = (unsigned long long) sinfo_gen->cpu[CPU_WAIT];
+    cpu->idle_ticks = (unsigned long long) sinfo_gen->cpu[CPU_IDLE];
+
+    /* XXX - Do these really belong here ? */
+    cpu->pageIn  = (unsigned long long)0;
+    cpu->pageOut = (unsigned long long)0;
+    cpu->swapIn  = (unsigned long long)sinfo_gen->swapin;
+    cpu->swapOut = (unsigned long long)sinfo_gen->swapout;
+    cpu->nInterrupts = (unsigned long long)sinfo_gen->intr_svcd;
+    cpu->nCtxSwitches = (unsigned long long)sinfo_gen->pswitch;
+
+    /* fetch individual cpu stats */
+
+    SGT_COOKIE_INIT(&ck); 
+    if (sysget(MPSA_SINFO, (char *) sinfo_cpus, sinfo_ksize * cpu_count, SGT_READ | SGT_CPUS | SGT_SUM, &ck) < 0)
+    {
+        snmp_log_perror("netsnmp_cpu_arch_load: sysget() failed");
+	exit(1);
+    }
+
+    for (i = 0; i < cpu_count ; ++i)
+    {
+        cpu = netsnmp_cpu_get_byIdx(i, 0);
+
+        DEBUGMSGTL(("cpu_sysinfo", "cpu %u kernel: %lu\n", i, sinfo_cpus[i].cpu[CPU_KERNEL]));
+        cpu->sys2_ticks  = (unsigned long long)sinfo_cpus[i].cpu[CPU_KERNEL] + (unsigned long long) sinfo_cpus[i].cpu[CPU_SXBRK] + (unsigned long long)sinfo_cpus[i].cpu[CPU_INTR];
+        cpu->intrpt_ticks = (unsigned long long)sinfo_cpus[i].cpu[CPU_INTR];
+        cpu->user_ticks = (unsigned long long)sinfo_cpus[i].cpu[CPU_USER];
+        cpu->wait_ticks   = (unsigned long long)sinfo_cpus[i].cpu[CPU_WAIT];
+        cpu->idle_ticks = (unsigned long long)sinfo_cpus[i].cpu[CPU_IDLE];
+    }
+
+    return 0;
+}
+