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SUSE:SLE-12-SP2:GA
net-snmp.22266
net-snmp-5.7.3-host-mib-skip-autofs-entries.patch
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File net-snmp-5.7.3-host-mib-skip-autofs-entries.patch of Package net-snmp.22266
From cf41e6e910158fb4c4cb546c49acd587c5f58232 Mon Sep 17 00:00:00 2001 From: Josef Ridky <jridky@redhat.com> Date: Wed, 24 Jul 2019 07:23:47 -0700 Subject: [PATCH] HOST-MIB: Skip autofs entries Do not call statfs() for autofs entries. See also https://sourceforge.net/p/net-snmp/patches/1350/. See also https://sourceforge.net/p/net-snmp/bugs/2968/. [ bvanassche: Made several small edits ] --- agent/mibgroup/hardware/fsys/fsys_mntctl.c | 8 ++++++-- agent/mibgroup/hardware/fsys/fsys_mntent.c | 11 +++++++++++ agent/mibgroup/hardware/fsys/mnttypes.h | 3 +++ agent/mibgroup/host/hr_filesys.c | 21 +++++++++++++++++++++ agent/mibgroup/host/hr_filesys.h | 1 + agent/mibgroup/host/hr_storage.c | 5 ++++- agent/mibgroup/host/hrh_filesys.c | 6 ++++++ agent/mibgroup/host/hrh_filesys.h | 1 + agent/mibgroup/host/hrh_storage.c | 5 ++++- include/net-snmp/agent/hardware/fsys.h | 1 + 10 files changed, 58 insertions(+), 4 deletions(-) diff --git a/agent/mibgroup/hardware/fsys/fsys_mntctl.c b/agent/mibgroup/hardware/fsys/fsys_mntctl.c index e7d9a1c5a..782c8edd2 100644 --- a/agent/mibgroup/hardware/fsys/fsys_mntctl.c +++ b/agent/mibgroup/hardware/fsys/fsys_mntctl.c @@ -43,8 +43,9 @@ _fsys_type( int type) case MNT_NFS: case MNT_NFS3: - case MNT_AUTOFS: return NETSNMP_FS_TYPE_NFS; + case MNT_AUTOFS: + return NETSNMP_FS_TYPE_AUTOFS; /* * The following code covers selected filesystems @@ -155,12 +156,15 @@ netsnmp_fsys_arch_load( void ) */ /* - * Optionally skip retrieving statistics for remote mounts + * Skip retrieving statistics for AUTOFS and optionally for remote + * mounts. */ if ( (entry->flags & NETSNMP_FS_FLAG_REMOTE) && netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_SKIPNFSINHOSTRESOURCES)) continue; + if (entry->type == NETSNMP_FS_TYPE_AUTOFS) + continue; if ( statfs( entry->path, &stat_buf ) < 0 ) { snprintf( tmpbuf, sizeof(tmpbuf), "Cannot statfs %s", entry->path ); diff --git a/agent/mibgroup/hardware/fsys/fsys_mntent.c b/agent/mibgroup/hardware/fsys/fsys_mntent.c index 3cdcea1fb..79e6e4f72 100644 --- a/agent/mibgroup/hardware/fsys/fsys_mntent.c +++ b/agent/mibgroup/hardware/fsys/fsys_mntent.c @@ -150,6 +150,13 @@ _fsys_type( char *typename ) !strcmp(typename, MNTTYPE_LOFS)) return NETSNMP_FS_TYPE_OTHER; + /* Detection of AUTOFS. + * This file system will be ignored by default + */ + else if (!strcmp(typename, MNTTYPE_AUTOFS)) + return NETSNMP_FS_TYPE_AUTOFS; + + /* * All other types are silently skipped */ @@ -239,6 +246,10 @@ netsnmp_fsys_arch_load( void ) NETSNMP_DS_AGENT_SKIPNFSINHOSTRESOURCES)) continue; + /* Skip AUTOFS entries */ + if (entry->type == NETSNMP_FS_TYPE_AUTOFS) + continue; + #ifdef irix6 if ( NSFS_STATFS( entry->path, &stat_buf, sizeof(struct statfs), 0) < 0 ) #else diff --git a/agent/mibgroup/hardware/fsys/mnttypes.h b/agent/mibgroup/hardware/fsys/mnttypes.h index bb1b40173..53f1cc896 100644 --- a/agent/mibgroup/hardware/fsys/mnttypes.h +++ b/agent/mibgroup/hardware/fsys/mnttypes.h @@ -165,6 +165,9 @@ #ifndef MNTTYPE_APP #define MNTTYPE_APP "app" #endif +#ifndef MNTTYPE_AUTOFS +#define MNTTYPE_AUTOFS "autofs" +#endif #ifndef MNTTYPE_DEVPTS #define MNTTYPE_DEVPTS "devpts" #endif diff --git a/agent/mibgroup/host/hr_filesys.c b/agent/mibgroup/host/hr_filesys.c index 56c8b2095..8caeecf4e 100644 --- a/agent/mibgroup/host/hr_filesys.c +++ b/agent/mibgroup/host/hr_filesys.c @@ -834,6 +834,27 @@ Check_HR_FileSys_NFS (void) return 0; /* no NFS file system */ } +/* This function checks whether current file system is an AutoFs + * HRFS_entry must be valid prior to calling this function + * return 1 if AutoFs, 0 otherwise + */ +int +Check_HR_FileSys_AutoFs(void) +{ +#if HAVE_GETFSSTAT + if (HRFS_entry->HRFS_type != NULL && +#if defined(MNTTYPE_AUTOFS) + !strcmp(HRFS_entry->HRFS_type, MNTTYPE_AUTOFS) +#else + !strcmp(HRFS_entry->HRFS_type, "autofs") +#endif + ) +#endif /* HAVE_GETFSSTAT */ + return 1; /* AUTOFS */ + + return 0; /* no AUTOFS */ +} + void End_HR_FileSys(void) { diff --git a/agent/mibgroup/host/hr_filesys.h b/agent/mibgroup/host/hr_filesys.h index 2f00355f3..36cd7dd08 100644 --- a/agent/mibgroup/host/hr_filesys.h +++ b/agent/mibgroup/host/hr_filesys.h @@ -10,6 +10,7 @@ extern void Init_HR_FileSys(void); extern FindVarMethod var_hrfilesys; extern int Get_Next_HR_FileSys(void); extern int Check_HR_FileSys_NFS(void); +extern int Check_HR_FileSys_AutoFs(void); extern int Get_FSIndex(char *); extern long Get_FSSize(char *); /* Temporary */ diff --git a/agent/mibgroup/host/hr_storage.c b/agent/mibgroup/host/hr_storage.c index a86898451..6b459ec51 100644 --- a/agent/mibgroup/host/hr_storage.c +++ b/agent/mibgroup/host/hr_storage.c @@ -544,6 +544,8 @@ really_try_next: NETSNMP_DS_AGENT_SKIPNFSINHOSTRESOURCES) && Check_HR_FileSys_NFS()) return NULL; /* or goto try_next; */ + if (Check_HR_FileSys_AutoFs()) + return NULL; if (HRFS_statfs(HRFS_entry->HRFS_mount, &stat_buf) < 0) { snmp_log_perror(HRFS_entry->HRFS_mount); goto try_next; @@ -683,7 +685,8 @@ Get_Next_HR_Store(void) if (HRS_index >= 0) { if (!(netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_SKIPNFSINHOSTRESOURCES) && - Check_HR_FileSys_NFS())) { + Check_HR_FileSys_NFS()) && + !Check_HR_FileSys_AutoFs()) { return HRS_index + NETSNMP_MEM_TYPE_MAX; } } else { diff --git a/agent/mibgroup/host/hrh_filesys.c b/agent/mibgroup/host/hrh_filesys.c index 5ad82b20f..5d2102e24 100644 --- a/agent/mibgroup/host/hrh_filesys.c +++ b/agent/mibgroup/host/hrh_filesys.c @@ -429,3 +429,9 @@ Check_HR_FileSys_NFS (void) { return (HRFS_entry->flags & NETSNMP_FS_FLAG_REMOTE) ? 1 : 0; } + +int +Check_HR_FileSys_AutoFs (void) +{ + return HRFS_entry->type == NETSNMP_FS_TYPE_AUTOFS; +} diff --git a/agent/mibgroup/host/hrh_filesys.h b/agent/mibgroup/host/hrh_filesys.h index 568917e09..c0f5d6e8c 100644 --- a/agent/mibgroup/host/hrh_filesys.h +++ b/agent/mibgroup/host/hrh_filesys.h @@ -10,6 +10,7 @@ extern void Init_HR_FileSys(void); extern FindVarMethod var_hrhfilesys; extern int Get_Next_HR_FileSys(void); extern int Check_HR_FileSys_NFS(void); +extern int Check_HR_FileSys_AutoFs(void); extern int Get_FSIndex(char *); extern long Get_FSSize(char *); /* Temporary */ diff --git a/agent/mibgroup/host/hrh_storage.c b/agent/mibgroup/host/hrh_storage.c index 810766946..6f8ff6c53 100644 --- a/agent/mibgroup/host/hrh_storage.c +++ b/agent/mibgroup/host/hrh_storage.c @@ -371,6 +371,8 @@ really_try_next: NETSNMP_DS_AGENT_SKIPNFSINHOSTRESOURCES) && Check_HR_FileSys_NFS()) return NULL; + if (Check_HR_FileSys_AutoFs()) + return NULL; if (store_idx <= NETSNMP_MEM_TYPE_MAX ) { mem = (netsnmp_memory_info*)ptr; } @@ -508,7 +510,8 @@ Get_Next_HR_Store(void) if (HRS_index >= 0) { if (!(netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_SKIPNFSINHOSTRESOURCES) && - Check_HR_FileSys_NFS())) { + Check_HR_FileSys_NFS()) && + !Check_HR_FileSys_AutoFs()) { return HRS_index + NETSNMP_MEM_TYPE_MAX; } } else { diff --git a/include/net-snmp/agent/hardware/fsys.h b/include/net-snmp/agent/hardware/fsys.h index 3f2b28440..54ab9d806 100644 --- a/include/net-snmp/agent/hardware/fsys.h +++ b/include/net-snmp/agent/hardware/fsys.h @@ -41,6 +41,7 @@ typedef struct netsnmp_fsys_info_s netsnmp_fsys_info; #define NETSNMP_FS_TYPE_SYSFS 4 | _NETSNMP_FS_TYPE_LOCAL | _NETSNMP_FS_TYPE_SKIP_BIT #define NETSNMP_FS_TYPE_TMPFS 5 | _NETSNMP_FS_TYPE_LOCAL #define NETSNMP_FS_TYPE_USBFS 6 | _NETSNMP_FS_TYPE_LOCAL +#define NETSNMP_FS_TYPE_AUTOFS (7 | _NETSNMP_FS_TYPE_LOCAL | _NETSNMP_FS_TYPE_SKIP_BIT) #define NETSNMP_FS_FLAG_ACTIVE 0x01 #define NETSNMP_FS_FLAG_REMOTE 0x02 -- 2.16.4
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