| /* |
| * Host Resources MIB - File System device group implementation (HAL rewrite) - hrh_filesys.c |
| * |
| */ |
| /* Portions of this file are subject to the following copyright(s). See |
| * the Net-SNMP's COPYING file for more details and other copyrights |
| * that may apply: |
| */ |
| /* |
| * Portions of this file are copyrighted by: |
| * Copyright (C) 2007 Apple, Inc. All rights reserved. |
| * Use is subject to license terms specified in the COPYING file |
| * distributed with the Net-SNMP package. |
| */ |
| |
| #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/memory.h> |
| #include <net-snmp/agent/hardware/fsys.h> |
| #include "host_res.h" |
| #include "hrh_filesys.h" |
| #include "hrh_storage.h" |
| #include "hr_disk.h" |
| #include <net-snmp/utilities.h> |
| |
| #if HAVE_MNTENT_H |
| #include <mntent.h> |
| #endif |
| #if HAVE_SYS_MNTENT_H |
| #include <sys/mntent.h> |
| #endif |
| #if HAVE_SYS_MNTTAB_H |
| #include <sys/mnttab.h> |
| #endif |
| #if HAVE_SYS_STATVFS_H |
| #include <sys/statvfs.h> |
| #endif |
| #if HAVE_SYS_VFS_H |
| #include <sys/vfs.h> |
| #endif |
| #ifdef HAVE_SYS_PARAM_H |
| #include <sys/param.h> |
| #endif |
| #ifdef HAVE_SYS_MOUNT_H |
| #include <sys/mount.h> |
| #endif |
| |
| #include <ctype.h> |
| #if HAVE_STRING_H |
| #include <string.h> |
| #endif |
| #if HAVE_STDLIB_H |
| #include <stdlib.h> |
| #endif |
| |
| #if defined(aix4) || defined(aix5) || defined(aix6) |
| #include <sys/mntctl.h> |
| #include <sys/vmount.h> |
| #include <sys/statfs.h> |
| #endif |
| |
| |
| #define HRFS_MONOTONICALLY_INCREASING |
| |
| /********************* |
| * |
| * Kernel & interface information, |
| * and internal forward declarations |
| * |
| *********************/ |
| netsnmp_fsys_info *HRFS_entry; |
| |
| #define FULL_DUMP 0 |
| #define PART_DUMP 1 |
| |
| extern void Init_HR_FileSys(void); |
| extern int Get_Next_HR_FileSys(void); |
| char *cook_device(char *); |
| static u_char *when_dumped(char *filesys, int level, size_t * length); |
| int header_hrhfilesys(struct variable *, oid *, size_t *, int, |
| size_t *, WriteMethod **); |
| |
| /********************* |
| * |
| * Initialisation & common implementation functions |
| * |
| *********************/ |
| |
| #define HRFSYS_INDEX 1 |
| #define HRFSYS_MOUNT 2 |
| #define HRFSYS_RMOUNT 3 |
| #define HRFSYS_TYPE 4 |
| #define HRFSYS_ACCESS 5 |
| #define HRFSYS_BOOT 6 |
| #define HRFSYS_STOREIDX 7 |
| #define HRFSYS_FULLDUMP 8 |
| #define HRFSYS_PARTDUMP 9 |
| |
| struct variable4 hrfsys_variables[] = { |
| {HRFSYS_INDEX, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_hrhfilesys, 2, {1, 1}}, |
| {HRFSYS_MOUNT, ASN_OCTET_STR, NETSNMP_OLDAPI_RONLY, |
| var_hrhfilesys, 2, {1, 2}}, |
| {HRFSYS_RMOUNT, ASN_OCTET_STR, NETSNMP_OLDAPI_RONLY, |
| var_hrhfilesys, 2, {1, 3}}, |
| {HRFSYS_TYPE, ASN_OBJECT_ID, NETSNMP_OLDAPI_RONLY, |
| var_hrhfilesys, 2, {1, 4}}, |
| {HRFSYS_ACCESS, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_hrhfilesys, 2, {1, 5}}, |
| {HRFSYS_BOOT, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_hrhfilesys, 2, {1, 6}}, |
| {HRFSYS_STOREIDX, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_hrhfilesys, 2, {1, 7}}, |
| {HRFSYS_FULLDUMP, ASN_OCTET_STR, NETSNMP_OLDAPI_RONLY, |
| var_hrhfilesys, 2, {1, 8}}, |
| {HRFSYS_PARTDUMP, ASN_OCTET_STR, NETSNMP_OLDAPI_RONLY, |
| var_hrhfilesys, 2, {1, 9}}, |
| }; |
| oid hrfsys_variables_oid[] = { 1, 3, 6, 1, 2, 1, 25, 3, 8 }; |
| |
| void |
| init_hrh_filesys(void) |
| { |
| REGISTER_MIB("host/hr_filesys", hrfsys_variables, variable4, |
| hrfsys_variables_oid); |
| } |
| |
| /* |
| * header_hrhfilesys(... |
| * 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_hrhfilesys(struct variable *vp, |
| oid * name, |
| size_t * length, |
| int exact, size_t * var_len, WriteMethod ** write_method) |
| { |
| #define HRFSYS_ENTRY_NAME_LENGTH 11 |
| oid newname[MAX_OID_LEN]; |
| int fsys_idx, LowIndex = -1; |
| int result; |
| |
| DEBUGMSGTL(("host/hr_filesys", "var_hrhfilesys: ")); |
| DEBUGMSGOID(("host/hr_filesys", name, *length)); |
| DEBUGMSG(("host/hr_filesys", " %d\n", exact)); |
| |
| memcpy((char *) newname, (char *) vp->name, vp->namelen * sizeof(oid)); |
| /* |
| * Find "next" file system entry |
| */ |
| |
| Init_HR_FileSys(); |
| for (;;) { |
| fsys_idx = Get_Next_HR_FileSys(); |
| if (fsys_idx == -1) |
| break; |
| newname[HRFSYS_ENTRY_NAME_LENGTH] = fsys_idx; |
| result = snmp_oid_compare(name, *length, newname, vp->namelen + 1); |
| if (exact && (result == 0)) { |
| LowIndex = fsys_idx; |
| break; |
| } |
| if ((!exact && (result < 0)) && |
| (LowIndex == -1 || fsys_idx < LowIndex)) { |
| LowIndex = fsys_idx; |
| #ifdef HRFS_MONOTONICALLY_INCREASING |
| break; |
| #endif |
| } |
| } |
| |
| if (LowIndex == -1) { |
| DEBUGMSGTL(("host/hr_filesys", "... index out of range\n")); |
| 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 */ |
| |
| DEBUGMSGTL(("host/hr_filesys", "... get filesys stats ")); |
| DEBUGMSGOID(("host/hr_filesys", name, *length)); |
| DEBUGMSG(("host/hr_filesys", "\n")); |
| |
| return LowIndex; |
| } |
| |
| |
| oid fsys_type_id[] = { 1, 3, 6, 1, 2, 1, 25, 3, 9, 1 }; /* hrFSOther */ |
| int fsys_type_len = |
| sizeof(fsys_type_id) / sizeof(fsys_type_id[0]); |
| |
| |
| |
| /********************* |
| * |
| * System specific implementation functions |
| * |
| *********************/ |
| |
| |
| u_char * |
| var_hrhfilesys(struct variable *vp, |
| oid * name, |
| size_t * length, |
| int exact, size_t * var_len, WriteMethod ** write_method) |
| { |
| int fsys_idx; |
| static char string[1024]; |
| |
| fsys_idx = |
| header_hrhfilesys(vp, name, length, exact, var_len, write_method); |
| if (fsys_idx == MATCH_FAILED) |
| return NULL; |
| |
| switch (vp->magic) { |
| case HRFSYS_INDEX: |
| long_return = fsys_idx; |
| return (u_char *) & long_return; |
| case HRFSYS_MOUNT: |
| snprintf(string, sizeof(string), HRFS_entry->path); |
| string[ sizeof(string)-1 ] = 0; |
| *var_len = strlen(string); |
| return (u_char *) string; |
| case HRFSYS_RMOUNT: |
| if (HRFS_entry->flags & NETSNMP_FS_FLAG_REMOTE) { |
| snprintf(string, sizeof(string), HRFS_entry->device); |
| string[ sizeof(string)-1 ] = 0; |
| } else |
| string[0] = '\0'; |
| *var_len = strlen(string); |
| return (u_char *) string; |
| |
| case HRFSYS_TYPE: |
| fsys_type_id[fsys_type_len - 1] = |
| (HRFS_entry->type > _NETSNMP_FS_TYPE_LOCAL ? |
| NETSNMP_FS_TYPE_OTHER : HRFS_entry->type); |
| *var_len = sizeof(fsys_type_id); |
| return (u_char *) fsys_type_id; |
| |
| case HRFSYS_ACCESS: |
| long_return = HRFS_entry->flags & NETSNMP_FS_FLAG_RONLY ? 2 : 1; |
| return (u_char *) & long_return; |
| case HRFSYS_BOOT: |
| long_return = HRFS_entry->flags & NETSNMP_FS_FLAG_BOOTABLE ? 1 : 2; |
| return (u_char *) & long_return; |
| case HRFSYS_STOREIDX: |
| long_return = fsys_idx + NETSNMP_MEM_TYPE_MAX; |
| return (u_char *) & long_return; |
| case HRFSYS_FULLDUMP: |
| return when_dumped(HRFS_entry->path, FULL_DUMP, var_len); |
| case HRFSYS_PARTDUMP: |
| return when_dumped(HRFS_entry->path, PART_DUMP, var_len); |
| default: |
| DEBUGMSGTL(("snmpd", "unknown sub-id %d in var_hrhfilesys\n", |
| vp->magic)); |
| } |
| return NULL; |
| } |
| |
| |
| /********************* |
| * |
| * Internal implementation functions |
| * |
| *********************/ |
| static int HRFS_index; |
| |
| void |
| Init_HR_FileSys(void) |
| { |
| netsnmp_cache *c = netsnmp_fsys_get_cache(); |
| netsnmp_cache_check_and_reload( c ); |
| |
| HRFS_entry = NULL; |
| } |
| |
| int |
| Get_Next_HR_FileSys(void) |
| { |
| if ( HRFS_entry ) { |
| HRFS_entry = netsnmp_fsys_get_next( HRFS_entry ); |
| } else { |
| HRFS_entry = netsnmp_fsys_get_first(); |
| } |
| /* Skip "inactive" entries */ |
| while ( HRFS_entry && !(HRFS_entry->flags & NETSNMP_FS_FLAG_ACTIVE)) |
| HRFS_entry = netsnmp_fsys_get_next( HRFS_entry ); |
| |
| return (HRFS_entry ? HRFS_entry->idx.oids[0] : -1 ); |
| } |
| |
| |
| |
| static u_char * |
| when_dumped(char *filesys, int level, size_t * length) |
| { |
| time_t dumpdate = 0, tmp; |
| FILE *dump_fp; |
| char line[1024]; |
| char *cp1, *cp2, *cp3; |
| |
| /* |
| * Look for the relevent entries in /etc/dumpdates |
| * |
| * This is complicated by the fact that disks are |
| * mounted using block devices, but dumps are |
| * done via the raw character devices. |
| * Thus the device names in /etc/dumpdates and |
| * /etc/mnttab don't match. |
| * These comparisons are therefore made using the |
| * final portion of the device name only. |
| */ |
| |
| if (*filesys == '\0') /* No filesystem name? */ |
| return date_n_time(NULL, length); |
| cp1 = strrchr(filesys, '/'); /* Find the last element of the current FS */ |
| |
| if (cp1 == NULL) |
| cp1 = filesys; |
| |
| if ((dump_fp = fopen("/etc/dumpdates", "r")) == NULL) |
| return date_n_time(NULL, length); |
| |
| while (fgets(line, sizeof(line), dump_fp) != NULL) { |
| cp2 = strchr(line, ' '); /* Start by looking at the device name only */ |
| if (cp2 != NULL) { |
| *cp2 = '\0'; |
| cp3 = strrchr(line, '/'); /* and find the last element */ |
| if (cp3 == NULL) |
| cp3 = line; |
| |
| if (strcmp(cp1, cp3) != 0) /* Wrong FS */ |
| continue; |
| |
| ++cp2; |
| while (isspace(*cp2)) |
| ++cp2; /* Now find the dump level */ |
| |
| if (level == FULL_DUMP) { |
| if (*(cp2++) != '0') |
| continue; /* Not interested in partial dumps */ |
| while (isspace(*cp2)) |
| ++cp2; |
| |
| dumpdate = ctime_to_timet(cp2); |
| fclose(dump_fp); |
| return date_n_time(&dumpdate, length); |
| } else { /* Partial Dump */ |
| if (*(cp2++) == '0') |
| continue; /* Not interested in full dumps */ |
| while (isspace(*cp2)) |
| ++cp2; |
| |
| tmp = ctime_to_timet(cp2); |
| if (tmp > dumpdate) |
| dumpdate = tmp; /* Remember the 'latest' partial dump */ |
| } |
| } |
| } |
| |
| fclose(dump_fp); |
| |
| return date_n_time(&dumpdate, length); |
| } |
| |
| |
| #define RAW_DEVICE_PREFIX "/dev/rdsk" |
| #define COOKED_DEVICE_PREFIX "/dev/dsk" |
| |
| char * |
| cook_device(char *dev) |
| { |
| static char cooked_dev[SNMP_MAXPATH+1]; |
| |
| if (!strncmp(dev, RAW_DEVICE_PREFIX, strlen(RAW_DEVICE_PREFIX))) { |
| strlcpy(cooked_dev, COOKED_DEVICE_PREFIX, sizeof(cooked_dev)); |
| strlcat(cooked_dev, dev + strlen(RAW_DEVICE_PREFIX), |
| sizeof(cooked_dev)); |
| } else { |
| strlcpy(cooked_dev, dev, sizeof(cooked_dev)); |
| } |
| |
| return cooked_dev; |
| } |
| |
| |
| int |
| Get_FSIndex(char *dev) |
| { |
| netsnmp_fsys_info *fsys; |
| |
| fsys = netsnmp_fsys_by_device( dev, NETSNMP_FS_FIND_EXIST ); |
| return (fsys ? fsys->idx.oids[0] : -1 ); |
| } |
| |
| long |
| Get_FSSize(char *dev) |
| { |
| netsnmp_fsys_info *fsys; |
| |
| fsys = netsnmp_fsys_by_device( dev, NETSNMP_FS_FIND_EXIST ); |
| if ( fsys ) |
| return netsnmp_fsys_size( fsys ); |
| else |
| return -1; |
| } |
| |
| int |
| Check_HR_FileSys_NFS (void) |
| { |
| return (HRFS_entry->flags & NETSNMP_FS_FLAG_REMOTE) ? 1 : 0; |
| } |
