samba-mirror/source3/utils/status.c

/* 
   Unix SMB/Netbios implementation.
   Version 1.9.
   status reporting
   Copyright (C) Andrew Tridgell 1994-1998
   
   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
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

   Revision History:

   12 aug 96: Erik.Devriendt@te6.siemens.be
   added support for shared memory implementation of share mode locking

   21-Jul-1998: rsharpe@ns.aus.com (Richard Sharpe)
   Added -L (locks only) -S (shares only) flags and code

*/

/*
 * This program reports current SMB connections
 */

#define NO_SYSLOG

#include "includes.h"

struct session_record{
  pid_t pid;
  uid_t uid;
  char machine[31];
  time_t start;
  struct session_record *next;
} *srecs;

extern int DEBUGLEVEL;
extern FILE *dbf;

static pstring Ucrit_username = "";                   /* added by OH */
static pid_t	Ucrit_pid[100];  /* Ugly !!! */        /* added by OH */
static int            Ucrit_MaxPid=0;                        /* added by OH */
static unsigned int   Ucrit_IsActive = 0;                    /* added by OH */
static int verbose, brief;
static int            shares_only = 0;            /* Added by RJS */
static int            locks_only  = 0;            /* Added by RJS */
static BOOL processes_only=False;
static int show_brl;

/* we need these because we link to locking*.o */
 void become_root(void) {}
 void unbecome_root(void) {}


/* added by OH */
static void Ucrit_addUsername(char *username)
{
	pstrcpy(Ucrit_username, username);
	if(strlen(Ucrit_username) > 0)
		Ucrit_IsActive = 1;
}

static unsigned int Ucrit_checkUsername(char *username)
{
	if ( !Ucrit_IsActive) return 1;
	if (strcmp(Ucrit_username,username) ==0) return 1;
	return 0;
}

static void Ucrit_addPid(pid_t pid)
{
	int i;
	if ( !Ucrit_IsActive) return;
	for (i=0;i<Ucrit_MaxPid;i++)
		if( pid == Ucrit_pid[i] ) return;
	Ucrit_pid[Ucrit_MaxPid++] = pid;
}

static unsigned int Ucrit_checkPid(pid_t pid)
{
	int i;
	if ( !Ucrit_IsActive) return 1;
	for (i=0;i<Ucrit_MaxPid;i++)
		if( pid == Ucrit_pid[i] ) return 1;
	return 0;
}


static void print_share_mode(share_mode_entry *e, char *fname)
{
	static int count;
	if (count==0) {
		printf("Locked files:\n");
		printf("Pid    DenyMode   R/W        Oplock           Name\n");
		printf("--------------------------------------------------\n");
	}
	count++;

	if (Ucrit_checkPid(e->pid)) {
          printf("%-5d  ",(int)e->pid);
	  switch (GET_DENY_MODE(e->share_mode)) {
	  case DENY_NONE: printf("DENY_NONE  "); break;
	  case DENY_ALL:  printf("DENY_ALL   "); break;
	  case DENY_DOS:  printf("DENY_DOS   "); break;
	  case DENY_READ: printf("DENY_READ  "); break;
	  case DENY_WRITE:printf("DENY_WRITE "); break;
	  case DENY_FCB:  printf("DENY_FCB "); break;
	  }
	  switch (e->share_mode&0xF) {
	  case 0: printf("RDONLY     "); break;
	  case 1: printf("WRONLY     "); break;
	  case 2: printf("RDWR       "); break;
	  }

	  if((e->op_type & 
	     (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) == 
	      (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
		printf("EXCLUSIVE+BATCH ");
	  else if (e->op_type & EXCLUSIVE_OPLOCK)
		printf("EXCLUSIVE       ");
	  else if (e->op_type & BATCH_OPLOCK)
		printf("BATCH           ");
	  else if (e->op_type & LEVEL_II_OPLOCK)
		printf("LEVEL_II        ");
	  else
		printf("NONE            ");

	  printf(" %s   %s",dos_to_unix(fname,False),
             asctime(LocalTime((time_t *)&e->time.tv_sec)));
	}
}

static void print_brl(SMB_DEV_T dev, SMB_INO_T ino, int pid, 
		      enum brl_type lock_type,
		      br_off start, br_off size)
{
	static int count;
	if (count==0) {
		printf("Byte range locks:\n");
		printf("   Pid     dev:inode  R/W      start        size\n");
		printf("------------------------------------------------\n");
	}
	count++;

	printf("%6d   %05x:%05x    %s  %9.0f   %9.0f\n", 
	       (int)pid, (int)dev, (int)ino, 
	       lock_type==READ_LOCK?"R":"W",
	       (double)start, (double)size);
}


/*******************************************************************
 dump the elements of the profile structure
  ******************************************************************/
static int profile_dump(void)
{
#ifndef WITH_PROFILE
	fprintf(stderr,"ERROR: not compiled with profile support\n");
	return -1;
#else
	if (!profile_setup(True)) {
		fprintf(stderr,"Failed to initialise profile memory\n");
		return -1;
	}

	printf("smb_count:\t%u\n", profile_p->smb_count);
	printf("uid_changes:\t%u\n", profile_p->uid_changes);
	return 0;
#endif
}


static int traverse_fn1(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void *state)
{
	static pid_t last_pid;
	struct session_record *ptr;
	struct connections_data crec;

	if (dbuf.dsize != sizeof(crec))
		return 0;

	memcpy(&crec, dbuf.dptr, sizeof(crec));

	if (crec.cnum == -1)
		return 0;

	if (!process_exists(crec.pid) || !Ucrit_checkUsername(uidtoname(crec.uid))) {
		return 0;
	}

	if (brief) {
		ptr=srecs;
		while (ptr!=NULL) {
			if ((ptr->pid==crec.pid)&&(strncmp(ptr->machine,crec.machine,30)==0)) {
				if (ptr->start > crec.start)
					ptr->start=crec.start;
				break;
			}
			ptr=ptr->next;
		}
		if (ptr==NULL) {
			ptr=(struct session_record *) malloc(sizeof(struct session_record));
			ptr->uid=crec.uid;
			ptr->pid=crec.pid;
			ptr->start=crec.start;
			strncpy(ptr->machine,crec.machine,30);
			ptr->machine[30]='\0';
			ptr->next=srecs;
			srecs=ptr;
		}
	} else {
		Ucrit_addPid(crec.pid);  
		if (processes_only) {
			if (last_pid != crec.pid)
				printf("%d\n",(int)crec.pid);
			last_pid = crec.pid; /* XXXX we can still get repeats, have to
						add a sort at some time */
		} else {
			printf("%-10.10s   %-8s %-8s %5d   %-8s (%s) %s",
			       crec.name,uidtoname(crec.uid),gidtoname(crec.gid),(int)crec.pid,
			       crec.machine,crec.addr,
			       asctime(LocalTime(&crec.start)));
		}
	}

	return 0;
}




 int main(int argc, char *argv[])
{
	pstring fname;
	int c;
	static pstring servicesf = CONFIGFILE;
	extern char *optarg;
	int profile_only = 0;
	TDB_CONTEXT *tdb;
	struct session_record *ptr;

	TimeInit();
	setup_logging(argv[0],True);
	
	charset_initialise();
	
	DEBUGLEVEL = 0;
	dbf = stderr;
	
	if (getuid() != geteuid()) {
		printf("smbstatus should not be run setuid\n");
		return(1);
	}
	
	while ((c = getopt(argc, argv, "pdLSs:u:bPB")) != EOF) {
		switch (c) {
		case 'b':
			brief = 1;
			break;
		case 'B':
			show_brl = 1;
			break;
		case 'd':
			verbose = 1;
			break;
		case 'L':
			locks_only = 1;
			break;
		case 'p':
			processes_only = 1;
			break;
		case 'P':
			profile_only = 1;
			break;
		case 'S':
			shares_only = 1;
			break;
		case 's':
			pstrcpy(servicesf, optarg);
			break;
		case 'u':                                      
			Ucrit_addUsername(optarg);             
			break;
		default:
			fprintf(stderr, "Usage: %s [-P] [-d] [-L] [-p] [-S] [-s configfile] [-u username]\n", *argv);
			return (-1);
		}
	}
	
	if (!lp_load(servicesf,False,False,False)) {
		fprintf(stderr, "Can't load %s - run testparm to debug it\n", servicesf);
		return (-1);
	}
	
	if (verbose) {
		printf("using configfile = %s\n", servicesf);
	}
	
	if (profile_only) {
		return profile_dump();
	}
	
	tdb = tdb_open_log(lock_path("connections.tdb"), 0, 0, O_RDONLY, 0);
	if (!tdb) {
		printf("connections.tdb not initialised\n");
		if (!lp_status(-1))
			printf("You need to have status=yes in your smb config file\n");
		return(0);
	}  else if (verbose) {
		printf("Opened status file %s\n", fname);
	}

	if (locks_only) goto locks;

	printf("\nSamba version %s\n",VERSION);
	if (brief) {
		printf("PID     Username  Machine                       Time logged in\n");
		printf("-------------------------------------------------------------------\n");
	} else {
		printf("Service      uid      gid      pid     machine\n");
		printf("----------------------------------------------\n");
	}
	tdb_traverse(tdb, traverse_fn1, NULL);
	tdb_close(tdb);

 locks:
	if (processes_only) exit(0);
  
	if (brief)  {
		ptr=srecs;
		while (ptr!=NULL) {
			printf("%-8d%-10.10s%-30.30s%s",
			       (int)ptr->pid,uidtoname(ptr->uid),
			       ptr->machine,
			       asctime(LocalTime(&(ptr->start))));
			ptr=ptr->next;
		}
		printf("\n");
		exit(0);
	}

	printf("\n");

	if (!shares_only) {
		int ret;

		if (!locking_init(1)) {
			printf("Can't initialise locking module - exiting\n");
			exit(1);
		}
		
		ret = share_mode_forall(print_share_mode);

		if (ret == 0) {
			printf("No locked files\n");
		} else if (ret == -1) {
			printf("locked file list truncated\n");
		}
		
		printf("\n");

		if (show_brl) {
			brl_forall(print_brl);
		}
		
		locking_end();
	}

	return (0);
}