Unix SMB/Netbios implementation.
Version 1.9.
status reporting
- Copyright (C) Andrew Tridgell 1994-1995
+ Copyright (C) Andrew Tridgell 1994-1997
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
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
*/
/*
#endif
#include "includes.h"
-#include "loadparm.h"
struct connect_record crec;
+
+struct session_record{
+ int pid;
+ int uid;
+ char machine[31];
+ time_t start;
+ struct session_record *next;
+} *srecs;
+
extern int DEBUGLEVEL;
extern FILE *dbf;
+extern pstring myhostname;
static pstring Ucrit_username = ""; /* added by OH */
int Ucrit_pid[100]; /* Ugly !!! */ /* added by OH */
int Ucrit_MaxPid=0; /* added by OH */
unsigned int Ucrit_IsActive = 0; /* added by OH */
-void Ucrit_addUsername(pstring username); /* added by OH */
-unsigned int Ucrit_checkUsername(pstring username); /* added by OH */
-void Ucrit_addPid(int pid); /* added by OH */
-unsigned int Ucrit_checkPid(int pid); /* added by OH */
-int main(int argc, char *argv[])
+#ifndef FAST_SHARE_MODES
+static char *read_share_file(int fd, char *fname, char *progname)
+{
+ struct stat sb;
+ char *buf;
+ int size;
+
+ if(fstat(fd, &sb) != 0)
+ {
+ printf("%s: ERROR: read_share_file: Failed to do stat on share file %s (%s)\n",
+ progname, fname, strerror(errno));
+ return 0;
+ }
+
+ if(sb.st_size == 0)
+ {
+ return 0;
+ }
+
+ /* Allocate space for the file */
+ if((buf = (char *)malloc(sb.st_size)) == NULL)
+ {
+ printf("%s: read_share_file: malloc for file size %d fail !\n",
+ progname, (int)sb.st_size);
+ return 0;
+ }
+
+ if(lseek(fd, 0, SEEK_SET) != 0)
+ {
+ printf("%s: ERROR: read_share_file: Failed to reset position to 0 \
+for share file %s (%s)\n", progname, fname, strerror(errno));
+ if(buf)
+ free(buf);
+ return 0;
+ }
+
+ if (read(fd,buf,sb.st_size) != sb.st_size)
+ {
+ printf("%s: ERROR: read_share_file: Failed to read share file %s (%s)\n",
+ progname, fname, strerror(errno));
+ if(buf)
+ free(buf);
+ return 0;
+ }
+
+ if (IVAL(buf,SMF_VERSION_OFFSET) != LOCKING_VERSION) {
+ printf("%s: ERROR: read_share_file: share file %s has incorrect \
+locking version (was %d, should be %d).\n",fname,
+ progname, IVAL(buf,SMF_VERSION_OFFSET), LOCKING_VERSION);
+ if(buf)
+ free(buf);
+ return 0;
+ }
+
+ /* Sanity check for file contents */
+ size = sb.st_size;
+ size -= SMF_HEADER_LENGTH; /* Remove the header */
+
+ /* Remove the filename component. */
+ size -= SVAL(buf, SMF_FILENAME_LEN_OFFSET);
+
+ /* The remaining size must be a multiple of SMF_ENTRY_LENGTH - error if not. */
+ if((size % SMF_ENTRY_LENGTH) != 0)
+ {
+ printf("%s: ERROR: read_share_file: share file %s is an incorrect length.\n",
+ progname, fname);
+ if(buf)
+ free(buf);
+ return 0;
+ }
+
+ return buf;
+}
+#endif /* FAST_SHARE_MODES */
+
+ int main(int argc, char *argv[])
{
FILE *f;
pstring fname;
- int uid, c, n;
+ int uid, c;
static pstring servicesf = CONFIGFILE;
extern char *optarg;
- int verbose = 0;
- void *dir;
- char *s;
+ int verbose = 0, brief =0;
BOOL firstopen=True;
BOOL processes_only=False;
int last_pid=0;
+#ifdef FAST_SHARE_MODES
+ pstring shmem_file_name;
+ share_mode_record *file_scanner_p;
+ smb_shm_offset_t *mode_array;
+ int bytes_free, bytes_used, bytes_overhead, bytes_total;
+#else /* FAST_SHARE_MODES */
+ void *dir;
+ char *s;
+#endif /* FAST_SHARE_MODES */
+ int oplock_type;
+ int i;
+ struct session_record *ptr;
+
+ TimeInit();
setup_logging(argv[0],True);
charset_initialise();
return(1);
}
- while ((c = getopt(argc, argv, "pdsu:")) != EOF) {
+ while ((c = getopt(argc, argv, "pds:u:b")) != EOF) {
switch (c) {
+ case 'b':
+ brief = 1;
+ break;
case 'd':
verbose = 1;
break;
}
}
-
+ get_myname(myhostname, NULL);
if (!lp_load(servicesf,False)) {
fprintf(stderr, "Can't load %s - run testparm to debug it\n", servicesf);
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);
+ }
uid = getuid();
if (!processes_only) {
printf("\nSamba version %s\n",VERSION);
- printf("Service uid gid pid machine\n");
- printf("----------------------------------------------\n");
+ if (brief)
+ {
+ printf("PID Username Machine Time logged in\n");
+ printf("-------------------------------------------------------------------\n");
+ }
+ else
+ {
+ printf("Service uid gid pid machine\n");
+ printf("----------------------------------------------\n");
+ }
}
while (!feof(f))
&& Ucrit_checkUsername(uidtoname(crec.uid)) /* added by OH */
)
{
- Ucrit_addPid(crec.pid); /* added by OH */
- if (processes_only) {
- if (last_pid != crec.pid)
- printf("%d\n",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),crec.pid,
- crec.machine,crec.addr,
- asctime(LocalTime(&crec.start,GMT_TO_LOCAL)));
+ 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); /* added by OH */
+ if (processes_only) {
+ if (last_pid != crec.pid)
+ printf("%d\n",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),crec.pid,
+ crec.machine,crec.addr,
+ asctime(LocalTime(&crec.start)));
+ }
}
}
fclose(f);
if (processes_only) exit(0);
+
+ if (brief)
+ {
+ ptr=srecs;
+ while (ptr!=NULL)
+ {
+ printf("%-8d%-10.10s%-30.30s%s",ptr->pid,uidtoname(ptr->uid),ptr->machine,asctime(LocalTime(&(ptr->start))));
+ ptr=ptr->next;
+ }
+ printf("\n");
+ exit(0);
+ }
printf("\n");
- dir = opendir(lp_lockdir());
- if (!dir) return(0);
- while ((s=readdirname(dir))) {
- char buf[16];
- int pid,mode;
- time_t t;
- int fd;
- pstring lname;
- int dev,inode;
-
- if (sscanf(s,"share.%d.%d",&dev,&inode)!=2) continue;
-
- strcpy(lname,lp_lockdir());
- trim_string(lname,NULL,"/");
- strcat(lname,"/");
- strcat(lname,s);
-
- fd = open(lname,O_RDONLY,0);
- if (fd < 0) continue;
- if (read(fd,buf,16) != 16) continue;
- n = read(fd,fname,sizeof(fname));
- fname[MAX(n,0)]=0;
- close(fd);
-
- t = IVAL(buf,0);
- mode = IVAL(buf,4);
- pid = IVAL(buf,8);
-
- if ( !Ucrit_checkPid(pid) ) /* added by OH */
- continue;
-
- if (IVAL(buf,12) != LOCKING_VERSION || !process_exists(pid)) {
- if (unlink(lname)==0)
- printf("Deleted stale share file %s\n",s);
+#ifdef FAST_SHARE_MODES
+ /*******************************************************************
+ initialize the shared memory for share_mode management
+ ******************************************************************/
+
+ strcpy(shmem_file_name,lp_lockdir());
+ trim_string(shmem_file_name,"","/");
+ if (!*shmem_file_name) exit(-1);
+ strcat(shmem_file_name, "/SHARE_MEM_FILE");
+ if(!smb_shm_open(shmem_file_name, lp_shmem_size())) exit(-1);
+
+ mode_array = (smb_shm_offset_t *)smb_shm_offset2addr(smb_shm_get_userdef_off());
+ if(mode_array == NULL)
+ {
+ printf("%s: base of shared memory hash array == 0! Exiting.\n", argv[0]);
+ smb_shm_close();
+ exit(-1);
+ }
+
+ for( i = 0; i < lp_shmem_hash_size(); i++)
+ {
+ smb_shm_lock_hash_entry(i);
+ if(mode_array[i] == NULL_OFFSET)
+ {
+ smb_shm_unlock_hash_entry(i);
continue;
}
+ file_scanner_p = (share_mode_record *)smb_shm_offset2addr(mode_array[i]);
+ while((file_scanner_p != 0) && (file_scanner_p->num_share_mode_entries != 0))
+ {
+ share_mode_entry *entry_scanner_p =
+ (share_mode_entry *)smb_shm_offset2addr(
+ file_scanner_p->share_mode_entries);
+
+ while(entry_scanner_p != 0)
+ {
+ struct timeval t;
+ int pid = entry_scanner_p->pid;
+ int mode = entry_scanner_p->share_mode;
+
+ t.tv_sec = entry_scanner_p->time.tv_sec;
+ t.tv_usec = entry_scanner_p->time.tv_usec;
+ strcpy(fname, file_scanner_p->file_name);
+ oplock_type = entry_scanner_p->op_type;
+
+#else /* FAST_SHARE_MODES */
+
+ /* For slow share modes go through all the files in
+ the share mode directory and read the entries in
+ each.
+ */
+
+ dir = opendir(lp_lockdir());
+ if (!dir)
+ {
+ printf("%s: Unable to open lock directory %s.\n", argv[0], lp_lockdir());
+ return(0);
+ }
+ while ((s=readdirname(dir))) {
+ char *buf;
+ char *base;
+ int fd;
+ pstring lname;
+ uint32 dev,inode;
+
+ if (sscanf(s,"share.%u.%u",&dev,&inode)!=2) continue;
+
+ strcpy(lname,lp_lockdir());
+ trim_string(lname,NULL,"/");
+ strcat(lname,"/");
+ strcat(lname,s);
+
+ fd = open(lname,O_RDWR,0);
+ if (fd < 0)
+ {
+ printf("%s: Unable to open share file %s.\n", argv[0], lname);
+ continue;
+ }
+
+ /* Lock the share mode file while we read it. */
+ if(fcntl_lock(fd, F_SETLKW, 0, 1, F_WRLCK) == False)
+ {
+ printf("%s: Unable to lock open share file %s.\n", argv[0], lname);
+ close(fd);
+ continue;
+ }
+
+ if(( buf = read_share_file( fd, lname, argv[0] )) == NULL)
+ {
+ close(fd);
+ continue;
+ }
+ strcpy( fname, &buf[10]);
+ close(fd);
+
+ base = buf + SMF_HEADER_LENGTH + SVAL(buf,SMF_FILENAME_LEN_OFFSET);
+ for( i = 0; i < IVAL(buf, SMF_NUM_ENTRIES_OFFSET); i++)
+ {
+ char *p = base + (i*SMF_ENTRY_LENGTH);
+ struct timeval t;
+ int pid = IVAL(p,SME_PID_OFFSET);
+ int mode = IVAL(p,SME_SHAREMODE_OFFSET);
+
+ t.tv_sec = IVAL(p,SME_SEC_OFFSET);
+ t.tv_usec = IVAL(p,SME_USEC_OFFSET);
+ oplock_type = SVAL(p,SME_OPLOCK_TYPE_OFFSET);
+#endif /* FAST_SHARE_MODES */
fname[sizeof(fname)-1] = 0;
if (firstopen) {
firstopen=False;
printf("Locked files:\n");
- printf("Pid DenyMode R/W Name\n");
- printf("------------------------------\n");
+ printf("Pid DenyMode R/W Oplock Name\n");
+ printf("--------------------------------------------------\n");
}
}
switch (mode&0xF)
{
- case 0: printf("RDONLY "); break;
- case 1: printf("WRONLY "); break;
- case 2: printf("RDWR "); break;
+ case 0: printf("RDONLY "); break;
+ case 1: printf("WRONLY "); break;
+ case 2: printf("RDWR "); break;
}
- printf(" %s %s",fname,asctime(LocalTime(&t,GMT_TO_LOCAL)));
- }
+
+ if((oplock_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) == (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
+ printf("EXCLUSIVE+BATCH ");
+ else if (oplock_type & EXCLUSIVE_OPLOCK)
+ printf("EXCLUSIVE ");
+ else if (oplock_type & BATCH_OPLOCK)
+ printf("BATCH ");
+ else
+ printf("NONE ");
+
+ printf(" %s %s",fname,asctime(LocalTime((time_t *)&t.tv_sec)));
+
+#ifdef FAST_SHARE_MODES
+
+ entry_scanner_p = (share_mode_entry *)smb_shm_offset2addr(
+ entry_scanner_p->next_share_mode_entry);
+ } /* end while entry_scanner_p */
+ file_scanner_p = (share_mode_record *)smb_shm_offset2addr(
+ file_scanner_p->next_offset);
+ } /* end while file_scanner_p */
+ smb_shm_unlock_hash_entry(i);
+ } /* end for */
+
+ smb_shm_get_usage(&bytes_free, &bytes_used, &bytes_overhead);
+ bytes_total = bytes_free + bytes_used + bytes_overhead;
+
+ /*******************************************************************
+ deinitialize the shared memory for share_mode management
+ ******************************************************************/
+ smb_shm_close();
+
+#else /* FAST_SHARE_MODES */
+ } /* end for i */
+
+ if(buf)
+ free(buf);
+ base = 0;
+ } /* end while */
closedir(dir);
+#endif /* FAST_SHARE_MODES */
if (firstopen)
printf("No locked files\n");
+#ifdef FAST_SHARE_MODES
+ printf("\nShare mode memory usage (bytes):\n");
+ printf(" %d(%d%%) free + %d(%d%%) used + %d(%d%%) overhead = %d(100%%) total\n",
+ bytes_free, (bytes_free * 100)/bytes_total,
+ bytes_used, (bytes_used * 100)/bytes_total,
+ bytes_overhead, (bytes_overhead * 100)/bytes_total,
+ bytes_total);
+
+#endif /* FAST_SHARE_MODES */
return (0);
}
git.samba.org / kai / samba.git / blobdiff