--- /dev/null
+/*
+ * Host Resources MIB - system group implementation - hr_system.c
+ *
+ */
+
+#include <net-snmp/net-snmp-config.h>
+#if HAVE_STRING_H
+#include <string.h>
+#else
+#include <strings.h>
+#endif
+
+#include <net-snmp/net-snmp-includes.h>
+#include <net-snmp/agent/net-snmp-agent-includes.h>
+
+#include "host.h"
+#include "host_res.h"
+#include "hr_system.h"
+#include <net-snmp/agent/auto_nlist.h>
+
+#ifdef HAVE_SYS_PROC_H
+#include <sys/param.h>
+#include "sys/proc.h"
+#endif
+#if HAVE_UTMPX_H
+#include <utmpx.h>
+#else
+#include <utmp.h>
+#endif
+
+#ifdef linux
+#ifdef HAVE_LINUX_TASKS_H
+#include <linux/tasks.h>
+#else
+/*
+ * If this file doesn't exist, then there is no hard limit on the number
+ * of processes, so return 0 for hrSystemMaxProcesses.
+ */
+#define NR_TASKS 0
+#endif
+#endif
+
+#if defined(hpux10) || defined(hpux11)
+#include <sys/pstat.h>
+#endif
+
+#ifdef HAVE_SYS_SYSCTL_H
+#include <sys/sysctl.h>
+#endif
+
+#if !defined(UTMP_FILE) && defined(_PATH_UTMP)
+#define UTMP_FILE _PATH_UTMP
+#endif
+
+#if defined(UTMP_FILE) && !HAVE_UTMPX_H
+void setutent(void);
+void endutent(void);
+struct utmp *getutent(void);
+#endif /* UTMP_FILE */
+
+
+ /*********************
+ *
+ * Kernel & interface information,
+ * and internal forward declarations
+ *
+ *********************/
+
+static int get_load_dev(void);
+static int count_users(void);
+extern int count_processes(void);
+
+
+ /*********************
+ *
+ * Initialisation & common implementation functions
+ *
+ *********************/
+
+#define HRSYS_UPTIME 1
+#define HRSYS_DATE 2
+#define HRSYS_LOAD_DEV 3
+#define HRSYS_LOAD_PARAM 4
+#define HRSYS_USERS 5
+#define HRSYS_PROCS 6
+#define HRSYS_MAXPROCS 7
+
+struct variable2 hrsystem_variables[] = {
+ {HRSYS_UPTIME, ASN_TIMETICKS, RONLY, var_hrsys, 1, {1}},
+ {HRSYS_DATE, ASN_OCTET_STR, RONLY, var_hrsys, 1, {2}},
+ {HRSYS_LOAD_DEV, ASN_INTEGER, RONLY, var_hrsys, 1, {3}},
+ {HRSYS_LOAD_PARAM, ASN_OCTET_STR, RONLY, var_hrsys, 1, {4}},
+ {HRSYS_USERS, ASN_GAUGE, RONLY, var_hrsys, 1, {5}},
+ {HRSYS_PROCS, ASN_GAUGE, RONLY, var_hrsys, 1, {6}},
+ {HRSYS_MAXPROCS, ASN_INTEGER, RONLY, var_hrsys, 1, {7}}
+};
+oid hrsystem_variables_oid[] = { 1, 3, 6, 1, 2, 1, 25, 1 };
+
+
+void
+init_hr_system(void)
+{
+#ifdef NPROC_SYMBOL
+ auto_nlist(NPROC_SYMBOL, 0, 0);
+#endif
+
+ REGISTER_MIB("host/hr_system", hrsystem_variables, variable2,
+ hrsystem_variables_oid);
+}
+
+/*
+ * header_hrsys(...
+ * Arguments:
+ * vp IN - pointer to variable entry that points here
+ * name IN/OUT - IN/name requested, OUT/name found
+ * length IN/OUT - length of IN/OUT oid's
+ * exact IN - TRUE if an exact match was requested
+ * var_len OUT - length of variable or 0 if function returned
+ * write_method
+ */
+
+int
+header_hrsys(struct variable *vp,
+ oid * name,
+ size_t * length,
+ int exact, size_t * var_len, WriteMethod ** write_method)
+{
+#define HRSYS_NAME_LENGTH 9
+ oid newname[MAX_OID_LEN];
+ int result;
+
+ DEBUGMSGTL(("host/hr_system", "var_hrsys: "));
+ DEBUGMSGOID(("host/hr_system", name, *length));
+ DEBUGMSG(("host/hr_system", " %d\n", exact));
+
+ memcpy((char *) newname, (char *) vp->name, vp->namelen * sizeof(oid));
+ newname[HRSYS_NAME_LENGTH] = 0;
+ result = snmp_oid_compare(name, *length, newname, vp->namelen + 1);
+ if ((exact && (result != 0)) || (!exact && (result >= 0)))
+ return (MATCH_FAILED);
+ memcpy((char *) name, (char *) newname,
+ (vp->namelen + 1) * sizeof(oid));
+ *length = vp->namelen + 1;
+
+ *write_method = 0;
+ *var_len = sizeof(long); /* default to 'long' results */
+ return (MATCH_SUCCEEDED);
+}
+
+
+ /*********************
+ *
+ * System specific implementation functions
+ *
+ *********************/
+
+u_char *
+var_hrsys(struct variable * vp,
+ oid * name,
+ size_t * length,
+ int exact, size_t * var_len, WriteMethod ** write_method)
+{
+ static char string[100];
+ time_t now;
+#ifndef NR_TASKS
+ int nproc = 0;
+#endif
+#ifdef linux
+ FILE *fp;
+#endif
+#if CAN_USE_SYSCTL && defined(CTL_KERN) && defined(KERN_MAXPROC)
+ static int maxproc_mib[] = { CTL_KERN, KERN_MAXPROC };
+ int buf_size;
+#endif
+#if defined(hpux10) || defined(hpux11)
+ struct pst_static pst_buf;
+#endif
+
+ if (header_hrsys(vp, name, length, exact, var_len, write_method) ==
+ MATCH_FAILED)
+ return NULL;
+
+ switch (vp->magic) {
+ case HRSYS_UPTIME:
+ long_return = get_uptime();
+ return (u_char *) & long_return;
+ case HRSYS_DATE:
+ (void *) time(&now);
+ return (u_char *) date_n_time(&now, var_len);
+ case HRSYS_LOAD_DEV:
+ long_return = get_load_dev();
+ return (u_char *) & long_return;
+ case HRSYS_LOAD_PARAM:
+#ifdef linux
+ fp = fopen("/proc/cmdline", "r");
+ fgets(string, sizeof(string), fp);
+ fclose(fp);
+#else
+#if NO_DUMMY_VALUES
+ return NULL;
+#endif
+ sprintf(string, "ask Dave"); /* XXX */
+#endif
+ *var_len = strlen(string);
+ return (u_char *) string;
+ case HRSYS_USERS:
+ long_return = count_users();
+ return (u_char *) & long_return;
+ case HRSYS_PROCS:
+#if USING_HOST_HR_SWRUN_MODULE
+ long_return = count_processes();
+#else
+#if NO_DUMMY_VALUES
+ return NULL;
+#endif
+ long_return = 0;
+#endif
+ return (u_char *) & long_return;
+ case HRSYS_MAXPROCS:
+#if defined(NR_TASKS)
+ long_return = NR_TASKS; /* <linux/tasks.h> */
+#elif CAN_USE_SYSCTL && defined(CTL_KERN) && defined(KERN_MAXPROC)
+ buf_size = sizeof(nproc);
+ if (sysctl(maxproc_mib, 2, &nproc, &buf_size, NULL, 0) < 0)
+ return NULL;
+ long_return = nproc;
+#elif defined(hpux10) || defined(hpux11)
+ pstat_getstatic(&pst_buf, sizeof(struct pst_static), 1, 0);
+ long_return = pst_buf.max_proc;
+#elif defined(NPROC_SYMBOL)
+ auto_nlist(NPROC_SYMBOL, (char *) &nproc, sizeof(int));
+ long_return = nproc;
+#else
+#if NO_DUMMY_VALUES
+ return NULL;
+#endif
+ long_return = 0;
+#endif
+ return (u_char *) & long_return;
+ default:
+ DEBUGMSGTL(("snmpd", "unknown sub-id %d in var_hrsys\n",
+ vp->magic));
+ }
+ return NULL;
+}
+
+
+ /*********************
+ *
+ * Internal implementation functions
+ *
+ *********************/
+
+ /*
+ * Return the DeviceIndex corresponding
+ * to the boot device
+ */
+static int
+get_load_dev(void)
+{
+ return (HRDEV_DISK << HRDEV_TYPE_SHIFT); /* XXX */
+}
+
+static int
+count_users(void)
+{
+ int total = 0;
+#if HAVE_UTMPX_H
+#define setutent setutxent
+#define getutent getutxent
+#define endutent endutxent
+ struct utmpx *utmp_p;
+#else
+ struct utmp *utmp_p;
+#endif
+
+ setutent();
+ while ((utmp_p = getutent()) != NULL) {
+#ifndef UTMP_HAS_NO_TYPE
+ if (utmp_p->ut_type == USER_PROCESS)
+#endif
+ ++total;
+ }
+ endutent();
+ return total;
+}
+
+#if defined(UTMP_FILE) && !HAVE_UTMPX_H
+
+static FILE *utmp_file;
+static struct utmp utmp_rec;
+
+void
+setutent(void)
+{
+ if (utmp_file)
+ fclose(utmp_file);
+ utmp_file = fopen(UTMP_FILE, "r");
+}
+
+void
+endutent(void)
+{
+ if (utmp_file) {
+ fclose(utmp_file);
+ utmp_file = NULL;
+ }
+}
+
+struct utmp *
+getutent(void)
+{
+ if (!utmp_file)
+ return NULL;
+ while (fread(&utmp_rec, sizeof(utmp_rec), 1, utmp_file) == 1)
+ if (*utmp_rec.ut_name && *utmp_rec.ut_line)
+ return &utmp_rec;
+ return NULL;
+}
+
+#endif /* UTMP_FILE */
projects / bcm963xx.git / blobdiff