/*
- Unix SMB/Netbios implementation.
- Version 1.9.
+ Unix SMB/CIFS implementation.
store smbd profiling information in shared memory
Copyright (C) Andrew Tridgell 1999
-
+ Copyright (C) James Peach 2006
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
#include "includes.h"
-#include <sys/shm.h>
-
-extern int DEBUGLEVEL;
-
-#define IPC_PERMS ((SHM_R | SHM_W) | (SHM_R>>3) | (SHM_R>>6))
+#ifdef WITH_PROFILE
+#define IPC_PERMS ((S_IRUSR | S_IWUSR) | S_IRGRP | S_IROTH)
+#endif /* WITH_PROFILE */
+#ifdef WITH_PROFILE
static int shm_id;
static BOOL read_only;
+#if defined(HAVE_CLOCK_GETTIME)
+clockid_t __profile_clock;
+BOOL have_profiling_clock = False;
+#endif
+#endif
struct profile_header *profile_h;
struct profile_stats *profile_p;
BOOL do_profile_flag = False;
BOOL do_profile_times = False;
-struct timeval profile_starttime;
-struct timeval profile_endtime;
-struct timeval profile_starttime_nested;
-struct timeval profile_endtime_nested;
-
/****************************************************************************
-receive a set profile level message
+Set a profiling level.
****************************************************************************/
-void profile_message(int msg_type, pid_t src, void *buf, size_t len)
+void set_profile_level(int level, struct server_id src)
{
- int level;
-
- memcpy(&level, buf, sizeof(int));
+#ifdef WITH_PROFILE
switch (level) {
case 0: /* turn off profiling */
do_profile_flag = False;
do_profile_times = False;
+ DEBUG(1,("INFO: Profiling turned OFF from pid %d\n",
+ (int)procid_to_pid(&src)));
break;
case 1: /* turn on counter profiling only */
do_profile_flag = True;
do_profile_times = False;
+ DEBUG(1,("INFO: Profiling counts turned ON from pid %d\n",
+ (int)procid_to_pid(&src)));
break;
case 2: /* turn on complete profiling */
+
+#if defined(HAVE_CLOCK_GETTIME)
+ if (!have_profiling_clock) {
+ do_profile_flag = True;
+ do_profile_times = False;
+ DEBUG(1,("INFO: Profiling counts turned ON from "
+ "pid %d\n", (int)procid_to_pid(&src)));
+ DEBUGADD(1,("INFO: Profiling times disabled "
+ "due to lack of a suitable clock\n"));
+ break;
+ }
+#endif
+
do_profile_flag = True;
do_profile_times = True;
+ DEBUG(1,("INFO: Full profiling turned ON from pid %d\n",
+ (int)procid_to_pid(&src)));
break;
case 3: /* reset profile values */
memset((char *)profile_p, 0, sizeof(*profile_p));
+ DEBUG(1,("INFO: Profiling values cleared from pid %d\n",
+ (int)procid_to_pid(&src)));
break;
}
- DEBUG(1,("Profile level set to %d from pid %d\n", level, (int)src));
+#else /* WITH_PROFILE */
+ DEBUG(1,("INFO: Profiling support unavailable in this build.\n"));
+#endif /* WITH_PROFILE */
+}
+
+/****************************************************************************
+receive a set profile level message
+****************************************************************************/
+static void profile_message(struct messaging_context *msg_ctx,
+ void *private_data,
+ uint32_t msg_type,
+ struct server_id src,
+ DATA_BLOB *data)
+{
+ int level;
+
+ if (data->length != sizeof(level)) {
+ DEBUG(0, ("got invalid profile message\n"));
+ return;
+ }
+
+ memcpy(&level, data->data, sizeof(level));
+ set_profile_level(level, src);
+}
+
+/****************************************************************************
+receive a request profile level message
+****************************************************************************/
+static void reqprofile_message(struct messaging_context *msg_ctx,
+ void *private_data,
+ uint32_t msg_type,
+ struct server_id src,
+ DATA_BLOB *data)
+{
+ int level;
+
+#ifdef WITH_PROFILE
+ level = 1 + (do_profile_flag?2:0) + (do_profile_times?4:0);
+#else
+ level = 0;
+#endif
+ DEBUG(1,("INFO: Received REQ_PROFILELEVEL message from PID %u\n",
+ (unsigned int)procid_to_pid(&src)));
+ messaging_send_buf(msg_ctx, src, MSG_PROFILELEVEL,
+ (uint8 *)&level, sizeof(level));
}
/*******************************************************************
open the profiling shared memory area
******************************************************************/
-BOOL profile_setup(BOOL rdonly)
+#ifdef WITH_PROFILE
+
+#ifdef HAVE_CLOCK_GETTIME
+
+/* Find a clock. Just because the definition for a particular clock ID is
+ * present doesn't mean the system actually supports it.
+ */
+static void init_clock_gettime(void)
+{
+ struct timespec ts;
+
+ have_profiling_clock = False;
+
+#ifdef HAVE_CLOCK_PROCESS_CPUTIME_ID
+ /* CLOCK_PROCESS_CPUTIME_ID is sufficiently fast that the
+ * always profiling times is plausible. Unfortunately on Linux
+ * it is only accurate if we can guarantee we will not be scheduled
+ * scheduled onto a different CPU between samples. Until there is
+ * some way to set processor affinity, we can only use this on
+ * uniprocessors.
+ */
+ if (!this_is_smp()) {
+ if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts) == 0) {
+ DEBUG(10, ("Using CLOCK_PROCESS_CPUTIME_ID "
+ "for profile_clock\n"));
+ __profile_clock = CLOCK_PROCESS_CPUTIME_ID;
+ have_profiling_clock = True;
+ }
+ }
+#endif
+
+#ifdef HAVE_CLOCK_MONOTONIC
+ if (!have_profiling_clock &&
+ clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
+ DEBUG(10, ("Using CLOCK_MONOTONIC for profile_clock\n"));
+ __profile_clock = CLOCK_MONOTONIC;
+ have_profiling_clock = True;
+ }
+#endif
+
+#ifdef HAVE_CLOCK_REALTIME
+ /* POSIX says that CLOCK_REALTIME should be defined everywhere
+ * where we have clock_gettime...
+ */
+ if (!have_profiling_clock &&
+ clock_gettime(CLOCK_REALTIME, &ts) == 0) {
+ __profile_clock = CLOCK_REALTIME;
+ have_profiling_clock = True;
+
+ SMB_WARN(__profile_clock != CLOCK_REALTIME,
+ ("forced to use a slow profiling clock"));
+ }
+
+#endif
+
+ SMB_WARN(have_profiling_clock == True,
+ ("could not find a working clock for profiling"));
+ return;
+}
+#endif
+
+BOOL profile_setup(struct messaging_context *msg_ctx, BOOL rdonly)
{
struct shmid_ds shm_ds;
read_only = rdonly;
+#ifdef HAVE_CLOCK_GETTIME
+ init_clock_gettime();
+#endif
+
again:
/* try to use an existing key */
shm_id = shmget(PROF_SHMEM_KEY, 0, 0);
return False;
}
- if (shm_ds.shm_perm.cuid != 0 || shm_ds.shm_perm.cgid != 0) {
- DEBUG(0,("ERROR: root did not create the shmem\n"));
+ if (shm_ds.shm_perm.cuid != sec_initial_uid() ||
+ shm_ds.shm_perm.cgid != sec_initial_gid()) {
+ DEBUG(0,("ERROR: we did not create the shmem "
+ "(owned by another user, uid %u, gid %u)\n",
+ shm_ds.shm_perm.cuid,
+ shm_ds.shm_perm.cgid));
return False;
}
}
profile_p = &profile_h->stats;
- message_register(MSG_PROFILE, profile_message);
+ if (msg_ctx != NULL) {
+ messaging_register(msg_ctx, NULL, MSG_PROFILE,
+ profile_message);
+ messaging_register(msg_ctx, NULL, MSG_REQ_PROFILELEVEL,
+ reqprofile_message);
+ }
return True;
}
+ const char * profile_value_name(enum profile_stats_values val)
+{
+ static const char * valnames[PR_VALUE_MAX + 1] =
+ {
+ "smbd_idle", /* PR_VALUE_SMBD_IDLE */
+ "syscall_opendir", /* PR_VALUE_SYSCALL_OPENDIR */
+ "syscall_readdir", /* PR_VALUE_SYSCALL_READDIR */
+ "syscall_seekdir", /* PR_VALUE_SYSCALL_SEEKDIR */
+ "syscall_telldir", /* PR_VALUE_SYSCALL_TELLDIR */
+ "syscall_rewinddir", /* PR_VALUE_SYSCALL_REWINDDIR */
+ "syscall_mkdir", /* PR_VALUE_SYSCALL_MKDIR */
+ "syscall_rmdir", /* PR_VALUE_SYSCALL_RMDIR */
+ "syscall_closedir", /* PR_VALUE_SYSCALL_CLOSEDIR */
+ "syscall_open", /* PR_VALUE_SYSCALL_OPEN */
+ "syscall_close", /* PR_VALUE_SYSCALL_CLOSE */
+ "syscall_read", /* PR_VALUE_SYSCALL_READ */
+ "syscall_pread", /* PR_VALUE_SYSCALL_PREAD */
+ "syscall_write", /* PR_VALUE_SYSCALL_WRITE */
+ "syscall_pwrite", /* PR_VALUE_SYSCALL_PWRITE */
+ "syscall_lseek", /* PR_VALUE_SYSCALL_LSEEK */
+ "syscall_sendfile", /* PR_VALUE_SYSCALL_SENDFILE */
+ "syscall_rename", /* PR_VALUE_SYSCALL_RENAME */
+ "syscall_fsync", /* PR_VALUE_SYSCALL_FSYNC */
+ "syscall_stat", /* PR_VALUE_SYSCALL_STAT */
+ "syscall_fstat", /* PR_VALUE_SYSCALL_FSTAT */
+ "syscall_lstat", /* PR_VALUE_SYSCALL_LSTAT */
+ "syscall_unlink", /* PR_VALUE_SYSCALL_UNLINK */
+ "syscall_chmod", /* PR_VALUE_SYSCALL_CHMOD */
+ "syscall_fchmod", /* PR_VALUE_SYSCALL_FCHMOD */
+ "syscall_chown", /* PR_VALUE_SYSCALL_CHOWN */
+ "syscall_fchown", /* PR_VALUE_SYSCALL_FCHOWN */
+ "syscall_chdir", /* PR_VALUE_SYSCALL_CHDIR */
+ "syscall_getwd", /* PR_VALUE_SYSCALL_GETWD */
+ "syscall_ntimes", /* PR_VALUE_SYSCALL_NTIMES */
+ "syscall_ftruncate", /* PR_VALUE_SYSCALL_FTRUNCATE */
+ "syscall_fcntl_lock", /* PR_VALUE_SYSCALL_FCNTL_LOCK */
+ "syscall_kernel_flock", /* PR_VALUE_SYSCALL_KERNEL_FLOCK */
+ "syscall_linux_setlease", /* PR_VALUE_SYSCALL_LINUX_SETLEASE */
+ "syscall_fcntl_getlock", /* PR_VALUE_SYSCALL_FCNTL_GETLOCK */
+ "syscall_readlink", /* PR_VALUE_SYSCALL_READLINK */
+ "syscall_symlink", /* PR_VALUE_SYSCALL_SYMLINK */
+ "syscall_link", /* PR_VALUE_SYSCALL_LINK */
+ "syscall_mknod", /* PR_VALUE_SYSCALL_MKNOD */
+ "syscall_realpath", /* PR_VALUE_SYSCALL_REALPATH */
+ "syscall_get_quota", /* PR_VALUE_SYSCALL_GET_QUOTA */
+ "syscall_set_quota", /* PR_VALUE_SYSCALL_SET_QUOTA */
+ "SMBmkdir", /* PR_VALUE_SMBMKDIR */
+ "SMBrmdir", /* PR_VALUE_SMBRMDIR */
+ "SMBopen", /* PR_VALUE_SMBOPEN */
+ "SMBcreate", /* PR_VALUE_SMBCREATE */
+ "SMBclose", /* PR_VALUE_SMBCLOSE */
+ "SMBflush", /* PR_VALUE_SMBFLUSH */
+ "SMBunlink", /* PR_VALUE_SMBUNLINK */
+ "SMBmv", /* PR_VALUE_SMBMV */
+ "SMBgetatr", /* PR_VALUE_SMBGETATR */
+ "SMBsetatr", /* PR_VALUE_SMBSETATR */
+ "SMBread", /* PR_VALUE_SMBREAD */
+ "SMBwrite", /* PR_VALUE_SMBWRITE */
+ "SMBlock", /* PR_VALUE_SMBLOCK */
+ "SMBunlock", /* PR_VALUE_SMBUNLOCK */
+ "SMBctemp", /* PR_VALUE_SMBCTEMP */
+ "SMBmknew", /* PR_VALUE_SMBMKNEW */
+ "SMBcheckpath", /* PR_VALUE_SMBCHECKPATH */
+ "SMBexit", /* PR_VALUE_SMBEXIT */
+ "SMBlseek", /* PR_VALUE_SMBLSEEK */
+ "SMBlockread", /* PR_VALUE_SMBLOCKREAD */
+ "SMBwriteunlock", /* PR_VALUE_SMBWRITEUNLOCK */
+ "SMBreadbraw", /* PR_VALUE_SMBREADBRAW */
+ "SMBreadBmpx", /* PR_VALUE_SMBREADBMPX */
+ "SMBreadBs", /* PR_VALUE_SMBREADBS */
+ "SMBwritebraw", /* PR_VALUE_SMBWRITEBRAW */
+ "SMBwriteBmpx", /* PR_VALUE_SMBWRITEBMPX */
+ "SMBwriteBs", /* PR_VALUE_SMBWRITEBS */
+ "SMBwritec", /* PR_VALUE_SMBWRITEC */
+ "SMBsetattrE", /* PR_VALUE_SMBSETATTRE */
+ "SMBgetattrE", /* PR_VALUE_SMBGETATTRE */
+ "SMBlockingX", /* PR_VALUE_SMBLOCKINGX */
+ "SMBtrans", /* PR_VALUE_SMBTRANS */
+ "SMBtranss", /* PR_VALUE_SMBTRANSS */
+ "SMBioctl", /* PR_VALUE_SMBIOCTL */
+ "SMBioctls", /* PR_VALUE_SMBIOCTLS */
+ "SMBcopy", /* PR_VALUE_SMBCOPY */
+ "SMBmove", /* PR_VALUE_SMBMOVE */
+ "SMBecho", /* PR_VALUE_SMBECHO */
+ "SMBwriteclose", /* PR_VALUE_SMBWRITECLOSE */
+ "SMBopenX", /* PR_VALUE_SMBOPENX */
+ "SMBreadX", /* PR_VALUE_SMBREADX */
+ "SMBwriteX", /* PR_VALUE_SMBWRITEX */
+ "SMBtrans2", /* PR_VALUE_SMBTRANS2 */
+ "SMBtranss2", /* PR_VALUE_SMBTRANSS2 */
+ "SMBfindclose", /* PR_VALUE_SMBFINDCLOSE */
+ "SMBfindnclose", /* PR_VALUE_SMBFINDNCLOSE */
+ "SMBtcon", /* PR_VALUE_SMBTCON */
+ "SMBtdis", /* PR_VALUE_SMBTDIS */
+ "SMBnegprot", /* PR_VALUE_SMBNEGPROT */
+ "SMBsesssetupX", /* PR_VALUE_SMBSESSSETUPX */
+ "SMBulogoffX", /* PR_VALUE_SMBULOGOFFX */
+ "SMBtconX", /* PR_VALUE_SMBTCONX */
+ "SMBdskattr", /* PR_VALUE_SMBDSKATTR */
+ "SMBsearch", /* PR_VALUE_SMBSEARCH */
+ "SMBffirst", /* PR_VALUE_SMBFFIRST */
+ "SMBfunique", /* PR_VALUE_SMBFUNIQUE */
+ "SMBfclose", /* PR_VALUE_SMBFCLOSE */
+ "SMBnttrans", /* PR_VALUE_SMBNTTRANS */
+ "SMBnttranss", /* PR_VALUE_SMBNTTRANSS */
+ "SMBntcreateX", /* PR_VALUE_SMBNTCREATEX */
+ "SMBntcancel", /* PR_VALUE_SMBNTCANCEL */
+ "SMBntrename", /* PR_VALUE_SMBNTRENAME */
+ "SMBsplopen", /* PR_VALUE_SMBSPLOPEN */
+ "SMBsplwr", /* PR_VALUE_SMBSPLWR */
+ "SMBsplclose", /* PR_VALUE_SMBSPLCLOSE */
+ "SMBsplretq", /* PR_VALUE_SMBSPLRETQ */
+ "SMBsends", /* PR_VALUE_SMBSENDS */
+ "SMBsendb", /* PR_VALUE_SMBSENDB */
+ "SMBfwdname", /* PR_VALUE_SMBFWDNAME */
+ "SMBcancelf", /* PR_VALUE_SMBCANCELF */
+ "SMBgetmac", /* PR_VALUE_SMBGETMAC */
+ "SMBsendstrt", /* PR_VALUE_SMBSENDSTRT */
+ "SMBsendend", /* PR_VALUE_SMBSENDEND */
+ "SMBsendtxt", /* PR_VALUE_SMBSENDTXT */
+ "SMBinvalid", /* PR_VALUE_SMBINVALID */
+ "pathworks_setdir", /* PR_VALUE_PATHWORKS_SETDIR */
+ "Trans2_open", /* PR_VALUE_TRANS2_OPEN */
+ "Trans2_findfirst", /* PR_VALUE_TRANS2_FINDFIRST */
+ "Trans2_findnext", /* PR_VALUE_TRANS2_FINDNEXT */
+ "Trans2_qfsinfo", /* PR_VALUE_TRANS2_QFSINFO */
+ "Trans2_setfsinfo", /* PR_VALUE_TRANS2_SETFSINFO */
+ "Trans2_qpathinfo", /* PR_VALUE_TRANS2_QPATHINFO */
+ "Trans2_setpathinfo", /* PR_VALUE_TRANS2_SETPATHINFO */
+ "Trans2_qfileinfo", /* PR_VALUE_TRANS2_QFILEINFO */
+ "Trans2_setfileinfo", /* PR_VALUE_TRANS2_SETFILEINFO */
+ "Trans2_fsctl", /* PR_VALUE_TRANS2_FSCTL */
+ "Trans2_ioctl", /* PR_VALUE_TRANS2_IOCTL */
+ "Trans2_findnotifyfirst", /* PR_VALUE_TRANS2_FINDNOTIFYFIRST */
+ "Trans2_findnotifynext", /* PR_VALUE_TRANS2_FINDNOTIFYNEXT */
+ "Trans2_mkdir", /* PR_VALUE_TRANS2_MKDIR */
+ "Trans2_session_setup", /* PR_VALUE_TRANS2_SESSION_SETUP */
+ "Trans2_get_dfs_referral", /* PR_VALUE_TRANS2_GET_DFS_REFERRAL */
+ "Trans2_report_dfs_inconsistancy", /* PR_VALUE_TRANS2_REPORT_DFS_INCONSISTANCY */
+ "NT_transact_create", /* PR_VALUE_NT_TRANSACT_CREATE */
+ "NT_transact_ioctl", /* PR_VALUE_NT_TRANSACT_IOCTL */
+ "NT_transact_set_security_desc", /* PR_VALUE_NT_TRANSACT_SET_SECURITY_DESC */
+ "NT_transact_notify_change",/* PR_VALUE_NT_TRANSACT_NOTIFY_CHANGE */
+ "NT_transact_rename", /* PR_VALUE_NT_TRANSACT_RENAME */
+ "NT_transact_query_security_desc", /* PR_VALUE_NT_TRANSACT_QUERY_SECURITY_DESC */
+ "NT_transact_get_user_quota",/* PR_VALUE_NT_TRANSACT_GET_USER_QUOTA */
+ "NT_transact_set_user_quota",/* PR_VALUE_NT_TRANSACT_SET_USER_QUOTA */
+ "get_nt_acl", /* PR_VALUE_GET_NT_ACL */
+ "fget_nt_acl", /* PR_VALUE_FGET_NT_ACL */
+ "set_nt_acl", /* PR_VALUE_SET_NT_ACL */
+ "fset_nt_acl", /* PR_VALUE_FSET_NT_ACL */
+ "chmod_acl", /* PR_VALUE_CHMOD_ACL */
+ "fchmod_acl", /* PR_VALUE_FCHMOD_ACL */
+ "name_release", /* PR_VALUE_NAME_RELEASE */
+ "name_refresh", /* PR_VALUE_NAME_REFRESH */
+ "name_registration", /* PR_VALUE_NAME_REGISTRATION */
+ "node_status", /* PR_VALUE_NODE_STATUS */
+ "name_query", /* PR_VALUE_NAME_QUERY */
+ "host_announce", /* PR_VALUE_HOST_ANNOUNCE */
+ "workgroup_announce", /* PR_VALUE_WORKGROUP_ANNOUNCE */
+ "local_master_announce", /* PR_VALUE_LOCAL_MASTER_ANNOUNCE */
+ "master_browser_announce", /* PR_VALUE_MASTER_BROWSER_ANNOUNCE */
+ "lm_host_announce", /* PR_VALUE_LM_HOST_ANNOUNCE */
+ "get_backup_list", /* PR_VALUE_GET_BACKUP_LIST */
+ "reset_browser", /* PR_VALUE_RESET_BROWSER */
+ "announce_request", /* PR_VALUE_ANNOUNCE_REQUEST */
+ "lm_announce_request", /* PR_VALUE_LM_ANNOUNCE_REQUEST */
+ "domain_logon", /* PR_VALUE_DOMAIN_LOGON */
+ "sync_browse_lists", /* PR_VALUE_SYNC_BROWSE_LISTS */
+ "run_elections", /* PR_VALUE_RUN_ELECTIONS */
+ "election", /* PR_VALUE_ELECTION */
+ "" /* PR_VALUE_MAX */
+ };
+
+ SMB_ASSERT(val >= 0);
+ SMB_ASSERT(val < PR_VALUE_MAX);
+ return valnames[val];
+}
+
+#endif /* WITH_PROFILE */
git.samba.org / kai / samba.git / blobdiff