/* number of open connections */
static int num_connections_open = 0;
+/* Oplock ipc UDP socket. */
+int oplock_sock = -1;
+uint16 oplock_port = 0;
+/* Current number of oplocks we have outstanding. */
+int32 global_oplocks_open = 0;
+
+BOOL global_oplock_break = False;
+
extern fstring remote_machine;
pstring OriginalDir;
int result = 0;
extern struct current_user current_user;
- DEBUG(5,("dos_mode: %d %s\n", cnum, path));
+ DEBUG(8,("dos_mode: %d %s\n", cnum, path));
if (CAN_WRITE(cnum) && !lp_alternate_permissions(SNUM(cnum))) {
if (!((sbuf->st_mode & S_IWOTH) ||
result |= aRONLY;
}
- if ((sbuf->st_mode & S_IXUSR) != 0)
+ if (MAP_ARCHIVE(cnum) && ((sbuf->st_mode & S_IXUSR) != 0))
result |= aARCH;
if (MAP_SYSTEM(cnum) && ((sbuf->st_mode & S_IXGRP) != 0))
if (S_ISDIR(sbuf->st_mode))
result = aDIR | (result & aRONLY);
+#ifdef S_ISLNK
#if LINKS_READ_ONLY
if (S_ISLNK(sbuf->st_mode) && S_ISDIR(sbuf->st_mode))
result |= aRONLY;
+#endif
#endif
/* hide files with a name starting with a . */
result |= aHIDDEN;
}
- if (is_hidden_path(SNUM(cnum), path))
+ /* Optimization : Only call is_hidden_path if it's not already
+ hidden. */
+ if (!(result & aHIDDEN) && IS_HIDDEN_PATH(cnum,path))
{
result |= aHIDDEN;
}
- DEBUG(5,("dos_mode returning "));
+ DEBUG(8,("dos_mode returning "));
- if (result & aHIDDEN) DEBUG(5, ("h"));
- if (result & aRONLY ) DEBUG(5, ("r"));
- if (result & aSYSTEM) DEBUG(5, ("s"));
- if (result & aDIR ) DEBUG(5, ("d"));
- if (result & aARCH ) DEBUG(5, ("a"));
+ if (result & aHIDDEN) DEBUG(8, ("h"));
+ if (result & aRONLY ) DEBUG(8, ("r"));
+ if (result & aSYSTEM) DEBUG(8, ("s"));
+ if (result & aDIR ) DEBUG(8, ("d"));
+ if (result & aARCH ) DEBUG(8, ("a"));
- DEBUG(5,("\n"));
+ DEBUG(8,("\n"));
return(result);
}
If the name looks like a mangled name then try via the mangling functions
****************************************************************************/
-static BOOL scan_directory(char *path, char *name,int snum,BOOL docache)
+static BOOL scan_directory(char *path, char *name,int cnum,BOOL docache)
{
void *cur_dir;
char *dname;
if (*path == 0)
path = ".";
- if (docache && (dname = DirCacheCheck(path,name,snum))) {
+ if (docache && (dname = DirCacheCheck(path,name,SNUM(cnum)))) {
strcpy(name, dname);
return(True);
}
check_mangled_stack(name);
/* open the directory */
- if (!(cur_dir = OpenDir(snum, path, True)))
+ if (!(cur_dir = OpenDir(cnum, path, True)))
{
DEBUG(3,("scan dir didn't open dir [%s]\n",path));
return(False);
(strequal(dname,".") || strequal(dname,"..")))
continue;
- strcpy(name2,dname);
- if (!name_map_mangle(name2,False,snum)) continue;
+ pstrcpy(name2,dname);
+ if (!name_map_mangle(name2,False,SNUM(cnum))) continue;
if ((mangled && mangled_equal(name,name2))
- || fname_equal(name, name2))
+ || fname_equal(name, name2)) /* name2 here was changed to dname - since 1.9.16p2 - not sure of reason (jra) */
{
/* we've found the file, change it's name and return */
- if (docache) DirCacheAdd(path,name,dname,snum);
+ if (docache) DirCacheAdd(path,name,dname,SNUM(cnum));
strcpy(name, dname);
CloseDir(cur_dir);
return(True);
of the pathname is returned there. This is used in an exceptional
case in reply_mv (so far). If saved_last_component == 0 then nothing
is returned there.
+
+The bad_path arg is set to True if the filename walk failed. This is
+used to pick the correct error code to return between ENOENT and ENOTDIR
+as Windows applications depend on ERRbadpath being returned if a component
+of a pathname does not exist.
****************************************************************************/
-BOOL unix_convert(char *name,int cnum,pstring saved_last_component)
+BOOL unix_convert(char *name,int cnum,pstring saved_last_component, BOOL *bad_path)
{
struct stat st;
char *start, *end;
pstring dirpath;
+ int saved_errno;
*dirpath = 0;
+ *bad_path = False;
+
if(saved_last_component)
*saved_last_component = 0;
if (sys_stat(name,&st) == 0)
return(True);
+ saved_errno = errno;
+
DEBUG(5,("unix_convert(%s,%d)\n",name,cnum));
/* a special case - if we don't have any mangling chars and are case
sensitive then searching won't help */
if (case_sensitive && !is_mangled(name) &&
- !lp_strip_dot() && !use_mangled_map)
+ !lp_strip_dot() && !use_mangled_map && (saved_errno != ENOENT))
return(False);
/* now we need to recursively match the name against the real
if (end) *end = 0;
if(saved_last_component != 0)
- strcpy(saved_last_component, end ? end + 1 : start);
+ strcpy(saved_last_component, end ? end + 1 : start);
/* check if the name exists up to this point */
if (sys_stat(name, &st) == 0)
/* remember the rest of the pathname so it can be restored
later */
- if (end) strcpy(rest,end+1);
+ if (end) pstrcpy(rest,end+1);
/* try to find this part of the path in the directory */
if (strchr(start,'?') || strchr(start,'*') ||
- !scan_directory(dirpath, start, SNUM(cnum), end?True:False))
+ !scan_directory(dirpath, start, cnum, end?True:False))
{
if (end)
{
/* an intermediate part of the name can't be found */
DEBUG(5,("Intermediate not found %s\n",start));
*end = '/';
+ /* We need to return the fact that the intermediate
+ name resolution failed. This is used to return an
+ error of ERRbadpath rather than ERRbadfile. Some
+ Windows applications depend on the difference between
+ these two errors.
+ */
+ *bad_path = True;
return(False);
}
dfree_retval : dfreeq_retval ;
/* maybe dfree and dfreeq are calculated using different bsizes
so convert dfree from bsize into bsizeq */
- *dfree = ((*dfree) * (*bsize)) / (bsizeq);
+ /* avoid overflows due to multiplication, so do not:
+ *dfree = ((*dfree) * (*bsize)) / (bsizeq);
+ bsize and bsizeq are powers of 2 so its better to
+ to divide them getting a multiplication or division factor
+ for dfree. Rene Nieuwenhuizen (07-10-1997) */
+ if (*bsize >= bsizeq)
+ *dfree = *dfree * (*bsize / bsizeq);
+ else
+ *dfree = *dfree / (bsizeq / *bsize);
*dfree = ( *dfree < dfreeq ) ? *dfree : dfreeq ;
*bsize = bsizeq;
*dsize = dsizeq;
dfree_retval : dfreeq_retval ;
/* maybe dfree and dfreeq are calculated using different bsizes
so convert dfree from bsize into bsizeq */
- *dfree = ((*dfree) * (*bsize)) / (bsizeq);
+ /* avoid overflows due to multiplication, so do not:
+ *dfree = ((*dfree) * (*bsize)) / (bsizeq);
+ bsize and bsizeq are powers of 2 so its better to
+ to divide them getting a multiplication or division factor
+ for dfree. Rene Nieuwenhuizen (07-10-1997) */
+ if (*bsize >= bsizeq)
+ *dfree = *dfree * (*bsize / bsizeq);
+ else
+ *dfree = *dfree / (bsizeq / *bsize);
*dfree = ( *dfree < dfreeq ) ? *dfree : dfreeq ;
*bsize = bsizeq;
*dsize = dsizeq;
errno = 0;
- if( is_vetoed_name(SNUM(cnum), name))
+ if( IS_VETO_PATH(cnum, name))
{
DEBUG(5,("file path name %s vetoed\n",name));
return(0);
}
ret = reduce_name(name,Connections[cnum].connectpath,lp_widelinks(SNUM(cnum)));
+
+ /* Check if we are allowing users to follow symlinks */
+ /* Patch from David Clerc <David.Clerc@cui.unige.ch>
+ University of Geneva */
+
+#ifdef S_ISLNK
+ if (!lp_symlinks(SNUM(cnum)))
+ {
+ struct stat statbuf;
+ if ( (sys_lstat(name,&statbuf) != -1) &&
+ (S_ISLNK(statbuf.st_mode)) )
+ {
+ DEBUG(3,("check_name: denied: file path name %s is a symlink\n",name));
+ ret=0;
+ }
+ }
+#endif
+
if (!ret)
DEBUG(5,("check_name on %s failed\n",name));
/****************************************************************************
fd support routines - attempt to do a sys_open
****************************************************************************/
-
-int fd_attempt_open(char *fname, int flags, int mode)
+static int fd_attempt_open(char *fname, int flags, int mode)
{
int fd = sys_open(fname,flags,mode);
fd support routines - attempt to find an already open file by dev
and inode - increments the ref_count of the returned file_fd_struct *.
****************************************************************************/
-file_fd_struct *fd_get_already_open(struct stat *sbuf)
+static file_fd_struct *fd_get_already_open(struct stat *sbuf)
{
int i;
file_fd_struct *fd_ptr;
fd support routines - attempt to find a empty slot in the FileFd array.
Increments the ref_count of the returned entry.
****************************************************************************/
-file_fd_struct *fd_get_new()
+static file_fd_struct *fd_get_new()
{
int i;
file_fd_struct *fd_ptr;
fd support routines - attempt to re-open an already open fd as O_RDWR.
Save the already open fd (we cannot close due to POSIX file locking braindamage.
****************************************************************************/
-
-void fd_attempt_reopen(char *fname, int mode, file_fd_struct *fd_ptr)
+static void fd_attempt_reopen(char *fname, int mode, file_fd_struct *fd_ptr)
{
int fd = sys_open( fname, O_RDWR, mode);
fd support routines - attempt to close the file referenced by this fd.
Decrements the ref_count and returns it.
****************************************************************************/
-int fd_attempt_close(file_fd_struct *fd_ptr)
+static int fd_attempt_close(file_fd_struct *fd_ptr)
{
DEBUG(3,("fd_attempt_close on file_fd_struct %d, fd = %d, dev = %x, inode = %x, open_flags = %d, ref_count = %d.\n",
fd_ptr - &FileFd[0],
pstring fname;
struct stat statbuf;
file_fd_struct *fd_ptr;
+ files_struct *fsp = &Files[fnum];
- Files[fnum].open = False;
- Files[fnum].fd_ptr = 0;
+ fsp->open = False;
+ fsp->fd_ptr = 0;
+ fsp->granted_oplock = False;
errno = EPERM;
- strcpy(fname,fname1);
+ pstrcpy(fname,fname1);
/* check permissions */
if ((flags != O_RDONLY) && !CAN_WRITE(cnum) && !Connections[cnum].printer)
pstring dname;
int dum1,dum2,dum3;
char *p;
- strcpy(dname,fname);
+ pstrcpy(dname,fname);
p = strrchr(dname,'/');
if (p) *p = 0;
if (sys_disk_free(dname,&dum1,&dum2,&dum3) <
lp_minprintspace(SNUM(cnum))) {
fd_attempt_close(fd_ptr);
- Files[fnum].fd_ptr = 0;
+ fsp->fd_ptr = 0;
if(fd_ptr->ref_count == 0)
sys_unlink(fname);
errno = ENOSPC;
fd_ptr->dev = (uint32)sbuf->st_dev;
fd_ptr->inode = (uint32)sbuf->st_ino;
- Files[fnum].fd_ptr = fd_ptr;
+ fsp->fd_ptr = fd_ptr;
Connections[cnum].num_files_open++;
- Files[fnum].mode = sbuf->st_mode;
- GetTimeOfDay(&Files[fnum].open_time);
- Files[fnum].uid = current_user.id;
- Files[fnum].size = 0;
- Files[fnum].pos = -1;
- Files[fnum].open = True;
- Files[fnum].mmap_ptr = NULL;
- Files[fnum].mmap_size = 0;
- Files[fnum].can_lock = True;
- Files[fnum].can_read = ((flags & O_WRONLY)==0);
- Files[fnum].can_write = ((flags & (O_WRONLY|O_RDWR))!=0);
- Files[fnum].share_mode = 0;
- Files[fnum].print_file = Connections[cnum].printer;
- Files[fnum].modified = False;
- Files[fnum].cnum = cnum;
- string_set(&Files[fnum].name,dos_to_unix(fname,False));
- Files[fnum].wbmpx_ptr = NULL;
+ fsp->mode = sbuf->st_mode;
+ GetTimeOfDay(&fsp->open_time);
+ fsp->uid = current_user.id;
+ fsp->size = 0;
+ fsp->pos = -1;
+ fsp->open = True;
+ fsp->mmap_ptr = NULL;
+ fsp->mmap_size = 0;
+ fsp->can_lock = True;
+ fsp->can_read = ((flags & O_WRONLY)==0);
+ fsp->can_write = ((flags & (O_WRONLY|O_RDWR))!=0);
+ fsp->share_mode = 0;
+ fsp->print_file = Connections[cnum].printer;
+ fsp->modified = False;
+ fsp->granted_oplock = False;
+ fsp->cnum = cnum;
+ string_set(&fsp->name,dos_to_unix(fname,False));
+ fsp->wbmpx_ptr = NULL;
/*
* If the printer is marked as postscript output a leading
* This has a similar effect as CtrlD=0 in WIN.INI file.
* tim@fsg.com 09/06/94
*/
- if (Files[fnum].print_file && POSTSCRIPT(cnum) &&
- Files[fnum].can_write)
+ if (fsp->print_file && POSTSCRIPT(cnum) &&
+ fsp->can_write)
{
DEBUG(3,("Writing postscript line\n"));
write_file(fnum,"%!\n",3);
DEBUG(2,("%s %s opened file %s read=%s write=%s (numopen=%d fnum=%d)\n",
timestring(),Connections[cnum].user,fname,
- BOOLSTR(Files[fnum].can_read),BOOLSTR(Files[fnum].can_write),
+ BOOLSTR(fsp->can_read),BOOLSTR(fsp->can_write),
Connections[cnum].num_files_open,fnum));
}
#if USE_MMAP
/* mmap it if read-only */
- if (!Files[fnum].can_write)
+ if (!fsp->can_write)
{
- Files[fnum].mmap_size = file_size(fname);
- Files[fnum].mmap_ptr = (char *)mmap(NULL,Files[fnum].mmap_size,
- PROT_READ,MAP_SHARED,Files[fnum].fd_ptr->fd,0);
+ fsp->mmap_size = file_size(fname);
+ fsp->mmap_ptr = (char *)mmap(NULL,fsp->mmap_size,
+ PROT_READ,MAP_SHARED,fsp->fd_ptr->fd,0);
- if (Files[fnum].mmap_ptr == (char *)-1 || !Files[fnum].mmap_ptr)
+ if (fsp->mmap_ptr == (char *)-1 || !fsp->mmap_ptr)
{
DEBUG(3,("Failed to mmap() %s - %s\n",fname,strerror(errno)));
- Files[fnum].mmap_ptr = NULL;
+ fsp->mmap_ptr = NULL;
}
}
#endif
int ret;
pstring magic_output;
pstring fname;
- strcpy(fname,Files[fnum].name);
+ pstrcpy(fname,Files[fnum].name);
if (*lp_magicoutput(SNUM(cnum)))
- strcpy(magic_output,lp_magicoutput(SNUM(cnum)));
+ pstrcpy(magic_output,lp_magicoutput(SNUM(cnum)));
else
sprintf(magic_output,"%s.out",fname);
fs_p->open = False;
Connections[cnum].num_files_open--;
if(fs_p->wbmpx_ptr)
- {
- free((char *)fs_p->wbmpx_ptr);
- fs_p->wbmpx_ptr = NULL;
- }
+ {
+ free((char *)fs_p->wbmpx_ptr);
+ fs_p->wbmpx_ptr = NULL;
+ }
#if USE_MMAP
if(fs_p->mmap_ptr)
- {
- munmap(fs_p->mmap_ptr,fs_p->mmap_size);
- fs_p->mmap_ptr = NULL;
- }
+ {
+ munmap(fs_p->mmap_ptr,fs_p->mmap_size);
+ fs_p->mmap_ptr = NULL;
+ }
#endif
if (lp_share_modes(SNUM(cnum)))
if (new_deny == DENY_ALL || old_deny == DENY_ALL) return(AFAIL);
if (new_deny == DENY_DOS || old_deny == DENY_DOS) {
- if (old_deny == new_deny && share_pid == getpid())
+ int pid = getpid();
+ if (old_deny == new_deny && share_pid == pid)
return(AALL);
if (old_mode == 0) return(AREAD);
struct stat sbuf;
share_lock_token token;
int pid = getpid();
+ uint32 dev, inode;
if(!lp_share_modes(SNUM(cnum)))
return True;
if (stat(fname,&sbuf) == -1) return(True);
- lock_share_entry(cnum, (uint32)sbuf.st_dev, (uint32)sbuf.st_ino, &token);
- num_share_modes = get_share_modes(cnum, token,
- (uint32)sbuf.st_dev, (uint32)sbuf.st_ino, &old_shares);
+ dev = (uint32)sbuf.st_dev;
+ inode = (uint32)sbuf.st_ino;
+
+ lock_share_entry(cnum, dev, inode, &token);
+ num_share_modes = get_share_modes(cnum, token, dev, inode, &old_shares);
+
+ /*
+ * Check if the share modes will give us access.
+ */
- for( i = 0; i < num_share_modes; i++)
+ if(num_share_modes != 0)
{
- if (old_shares[i].share_mode != DENY_DOS)
- goto free_and_exit;
+ BOOL broke_oplock;
+
+ do
+ {
+
+ broke_oplock = False;
+ for(i = 0; i < num_share_modes; i++)
+ {
+ min_share_mode_entry *share_entry = &old_shares[i];
+
+ /*
+ * Break oplocks before checking share modes. See comment in
+ * open_file_shared for details.
+ * Check if someone has an oplock on this file. If so we must
+ * break it before continuing.
+ */
+ if(share_entry->op_type & BATCH_OPLOCK)
+ {
+
+ DEBUG(5,("check_file_sharing: breaking oplock (%x) on file %s, \
+dev = %x, inode = %x\n", share_entry->op_type, fname, dev, inode));
- if(old_shares[i].pid != pid)
- goto free_and_exit;
+ /* Oplock break.... */
+ unlock_share_entry(cnum, dev, inode, token);
+ if(request_oplock_break(share_entry, dev, inode) == False)
+ {
+ free((char *)old_shares);
+ DEBUG(0,("check_file_sharing: FAILED when breaking oplock (%x) on file %s, \
+dev = %x, inode = %x\n", old_shares[i].op_type, fname, dev, inode));
+ return False;
+ }
+ lock_share_entry(cnum, dev, inode, &token);
+ broke_oplock = True;
+ break;
+ }
+
+ /* someone else has a share lock on it, check to see
+ if we can too */
+ if ((share_entry->share_mode != DENY_DOS) || (share_entry->pid != pid))
+ goto free_and_exit;
+
+ } /* end for */
+
+ if(broke_oplock)
+ {
+ free((char *)old_shares);
+ num_share_modes = get_share_modes(cnum, token, dev, inode, &old_shares);
+ }
+ } while(broke_oplock);
}
/* XXXX exactly what share mode combinations should be allowed for
free_and_exit:
- unlock_share_entry(cnum, (uint32)sbuf.st_dev, (uint32)sbuf.st_ino, token);
+ unlock_share_entry(cnum, dev, inode, token);
if(old_shares != NULL)
free((char *)old_shares);
return(ret);
}
}
+/****************************************************************************
+check if we can open a file with a share mode
+****************************************************************************/
+int check_share_mode( min_share_mode_entry *share, int deny_mode, char *fname,
+ BOOL fcbopen, int *flags)
+{
+ int old_open_mode = share->share_mode &0xF;
+ int old_deny_mode = (share->share_mode >>4)&7;
+
+ if (old_deny_mode > 4 || old_open_mode > 2)
+ {
+ DEBUG(0,("Invalid share mode found (%d,%d,%d) on file %s\n",
+ deny_mode,old_deny_mode,old_open_mode,fname));
+ return False;
+ }
+
+ {
+ int access_allowed = access_table(deny_mode,old_deny_mode,old_open_mode,
+ share->pid,fname);
+
+ if ((access_allowed == AFAIL) ||
+ (!fcbopen && (access_allowed == AREAD && *flags == O_RDWR)) ||
+ (access_allowed == AREAD && *flags == O_WRONLY) ||
+ (access_allowed == AWRITE && *flags == O_RDONLY))
+ {
+ DEBUG(2,("Share violation on file (%d,%d,%d,%d,%s) = %d\n",
+ deny_mode,old_deny_mode,old_open_mode,
+ share->pid,fname, access_allowed));
+ return False;
+ }
+
+ if (access_allowed == AREAD)
+ *flags = O_RDONLY;
+
+ if (access_allowed == AWRITE)
+ *flags = O_WRONLY;
+
+ }
+ return True;
+}
/****************************************************************************
open a file with a share mode
****************************************************************************/
void open_file_shared(int fnum,int cnum,char *fname,int share_mode,int ofun,
- int mode,int *Access,int *action)
+ int mode,int oplock_request, int *Access,int *action)
{
files_struct *fs_p = &Files[fnum];
int flags=0;
share_lock_token token;
uint32 dev = 0;
uint32 inode = 0;
+ int num_share_modes = 0;
fs_p->open = False;
fs_p->fd_ptr = 0;
if (strstr(fname,".+,;=[]."))
{
unix_ERR_class = ERRDOS;
+ /* OS/2 Workplace shell fix may be main code stream in a later release. */
+#ifdef OS2_WPS_FIX
+ unix_ERR_code = ERRcannotopen;
+#else /* OS2_WPS_FIX */
unix_ERR_code = ERROR_EAS_NOT_SUPPORTED;
+#endif /* OS2_WPS_FIX */
+
return;
}
if (lp_share_modes(SNUM(cnum)))
{
- int num_shares = 0;
int i;
min_share_mode_entry *old_shares = 0;
-
if (file_existed)
{
dev = (uint32)sbuf.st_dev;
inode = (uint32)sbuf.st_ino;
lock_share_entry(cnum, dev, inode, &token);
share_locked = True;
- num_shares = get_share_modes(cnum, token, dev, inode, &old_shares);
+ num_share_modes = get_share_modes(cnum, token, dev, inode, &old_shares);
}
- for(i = 0; i < num_shares; i++)
+ /*
+ * Check if the share modes will give us access.
+ */
+
+ if(share_locked && (num_share_modes != 0))
{
- /* someone else has a share lock on it, check to see
- if we can too */
- int old_open_mode = old_shares[i].share_mode &0xF;
- int old_deny_mode = (old_shares[i].share_mode >>4)&7;
+ BOOL broke_oplock;
- if (deny_mode > 4 || old_deny_mode > 4 || old_open_mode > 2)
+ do
{
- DEBUG(2,("Invalid share mode (%d,%d,%d) on file %s\n",
- deny_mode,old_deny_mode,old_open_mode,fname));
- free((char *)old_shares);
- if(share_locked)
- unlock_share_entry(cnum, dev, inode, token);
- errno = EACCES;
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRbadshare;
- return;
- }
- {
- int access_allowed = access_table(deny_mode,old_deny_mode,old_open_mode,
- old_shares[i].pid,fname);
+ broke_oplock = False;
+ for(i = 0; i < num_share_modes; i++)
+ {
+ min_share_mode_entry *share_entry = &old_shares[i];
+
+ /*
+ * By observation of NetBench, oplocks are broken *before* share
+ * modes are checked. This allows a file to be closed by the client
+ * if the share mode would deny access and the client has an oplock.
+ * Check if someone has an oplock on this file. If so we must break
+ * it before continuing.
+ */
+ if(share_entry->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
+ {
+
+ DEBUG(5,("open_file_shared: breaking oplock (%x) on file %s, \
+dev = %x, inode = %x\n", share_entry->op_type, fname, dev, inode));
+
+ /* Oplock break.... */
+ unlock_share_entry(cnum, dev, inode, token);
+ if(request_oplock_break(share_entry, dev, inode) == False)
+ {
+ free((char *)old_shares);
+ DEBUG(0,("open_file_shared: FAILED when breaking oplock (%x) on file %s, \
+dev = %x, inode = %x\n", old_shares[i].op_type, fname, dev, inode));
+ errno = EACCES;
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadshare;
+ return;
+ }
+ lock_share_entry(cnum, dev, inode, &token);
+ broke_oplock = True;
+ break;
+ }
+
+ /* someone else has a share lock on it, check to see
+ if we can too */
+ if(check_share_mode(share_entry, deny_mode, fname, fcbopen, &flags) == False)
+ {
+ free((char *)old_shares);
+ unlock_share_entry(cnum, dev, inode, token);
+ errno = EACCES;
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadshare;
+ return;
+ }
- if ((access_allowed == AFAIL) ||
- (!fcbopen && (access_allowed == AREAD && flags == O_RDWR)) ||
- (access_allowed == AREAD && flags == O_WRONLY) ||
- (access_allowed == AWRITE && flags == O_RDONLY))
+ } /* end for */
+
+ if(broke_oplock)
{
- DEBUG(2,("Share violation on file (%d,%d,%d,%d,%s) = %d\n",
- deny_mode,old_deny_mode,old_open_mode,
- old_shares[i].pid,fname,
- access_allowed));
free((char *)old_shares);
- if(share_locked)
- unlock_share_entry(cnum, dev, inode, token);
- errno = EACCES;
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRbadshare;
- return;
+ num_share_modes = get_share_modes(cnum, token, dev, inode, &old_shares);
}
-
- if (access_allowed == AREAD)
- flags = O_RDONLY;
-
- if (access_allowed == AWRITE)
- flags = O_WRONLY;
- }
+ } while(broke_oplock);
}
+
if(old_shares != 0)
free((char *)old_shares);
}
file (which expects the share_mode_entry to be there).
*/
if (lp_share_modes(SNUM(cnum)))
- set_share_mode(token, fnum);
+ {
+ uint16 port = 0;
+ /* JRA. Currently this only services Exlcusive and batch
+ oplocks (no other opens on this file). This needs to
+ be extended to level II oplocks (multiple reader
+ oplocks). */
+
+ if(oplock_request && (num_share_modes == 0) && lp_oplocks(SNUM(cnum)))
+ {
+ fs_p->granted_oplock = True;
+ global_oplocks_open++;
+ port = oplock_port;
+
+ DEBUG(5,("open_file_shared: granted oplock (%x) on file %s, \
+dev = %x, inode = %x\n", oplock_request, fname, dev, inode));
+
+ }
+ else
+ {
+ port = 0;
+ oplock_request = 0;
+ }
+ set_share_mode(token, fnum, port, oplock_request);
+ }
if ((flags2&O_TRUNC) && file_existed)
truncate_unless_locked(fnum,cnum,token,&share_locked);
/****************************************************************************
seek a file. Try to avoid the seek if possible
****************************************************************************/
-int seek_file(int fnum,int pos)
+int seek_file(int fnum,uint32 pos)
{
- int offset = 0;
+ uint32 offset = 0;
if (Files[fnum].print_file && POSTSCRIPT(Files[fnum].cnum))
offset = 3;
- Files[fnum].pos = lseek(Files[fnum].fd_ptr->fd,pos+offset,SEEK_SET) - offset;
+ Files[fnum].pos = (int)(lseek(Files[fnum].fd_ptr->fd,pos+offset,SEEK_SET)
+ - offset);
return(Files[fnum].pos);
}
/****************************************************************************
read from a file
****************************************************************************/
-int read_file(int fnum,char *data,int pos,int n)
+int read_file(int fnum,char *data,uint32 pos,int n)
{
int ret=0,readret;
#if USE_MMAP
if (Files[fnum].mmap_ptr)
{
- int num = MIN(n,Files[fnum].mmap_size-pos);
+ int num = MIN(n,(int)(Files[fnum].mmap_size-pos));
if (num > 0)
{
memcpy(data,Files[fnum].mmap_ptr+pos,num);
{EPERM,ERRDOS,ERRnoaccess},
{EACCES,ERRDOS,ERRnoaccess},
{ENOENT,ERRDOS,ERRbadfile},
+ {ENOTDIR,ERRDOS,ERRbadpath},
{EIO,ERRHRD,ERRgeneral},
{EBADF,ERRSRV,ERRsrverror},
{EINVAL,ERRSRV,ERRsrverror},
{0,0,0}
};
-
/****************************************************************************
create an error packet from errno
****************************************************************************/
else
{
while (unix_smb_errmap[i].smbclass != 0)
- {
- if (unix_smb_errmap[i].unixerror == errno)
+ {
+ if (unix_smb_errmap[i].unixerror == errno)
{
eclass = unix_smb_errmap[i].smbclass;
ecode = unix_smb_errmap[i].smbcode;
break;
}
i++;
- }
+ }
}
return(error_packet(inbuf,outbuf,eclass,ecode,line));
/* ready to listen */
if (listen(s, 5) == -1)
{
- DEBUG(0,("listen: %s",strerror(errno)));
+ DEBUG(0,("listen: %s\n",strerror(errno)));
close(s);
return False;
}
if (Client == -1)
{
- DEBUG(0,("accept: %s",strerror(errno)));
+ DEBUG(0,("accept: %s\n",strerror(errno)));
continue;
}
return True;
}
+/****************************************************************************
+ process an smb from the client - split out from the process() code so
+ it can be used by the oplock break code.
+****************************************************************************/
+
+static void process_smb(char *inbuf, char *outbuf)
+{
+ extern int Client;
+ static int trans_num;
+ int msg_type = CVAL(inbuf,0);
+ int32 len = smb_len(inbuf);
+ int nread = len + 4;
+
+ if (trans_num == 0) {
+ /* on the first packet, check the global hosts allow/ hosts
+ deny parameters before doing any parsing of the packet
+ passed to us by the client. This prevents attacks on our
+ parsing code from hosts not in the hosts allow list */
+ if (!check_access(-1)) {
+ /* send a negative session response "not listining on calling
+ name" */
+ static unsigned char buf[5] = {0x83, 0, 0, 1, 0x81};
+ DEBUG(1,("%s Connection denied from %s\n",
+ timestring(),client_addr()));
+ send_smb(Client,(char *)buf);
+ exit_server("connection denied");
+ }
+ }
+
+ DEBUG(6,("got message type 0x%x of len 0x%x\n",msg_type,len));
+ DEBUG(3,("%s Transaction %d of length %d\n",timestring(),trans_num,nread));
+
+#ifdef WITH_VTP
+ if(trans_num == 1 && VT_Check(inbuf))
+ {
+ VT_Process();
+ return;
+ }
+#endif
+
+ if (msg_type == 0)
+ show_msg(inbuf);
+
+ nread = construct_reply(inbuf,outbuf,nread,max_send);
+
+ if(nread > 0)
+ {
+ if (CVAL(outbuf,0) == 0)
+ show_msg(outbuf);
+
+ if (nread != smb_len(outbuf) + 4)
+ {
+ DEBUG(0,("ERROR: Invalid message response size! %d %d\n",
+ nread, smb_len(outbuf)));
+ }
+ else
+ send_smb(Client,outbuf);
+ }
+ trans_num++;
+}
+
+/****************************************************************************
+ open the oplock IPC socket communication
+****************************************************************************/
+static BOOL open_oplock_ipc()
+{
+ struct sockaddr_in sock_name;
+ int len = sizeof(sock_name);
+
+ DEBUG(3,("open_oplock_ipc: opening loopback UDP socket.\n"));
+
+ /* Open a lookback UDP socket on a random port. */
+ oplock_sock = open_socket_in(SOCK_DGRAM, 0, 0, htonl(INADDR_LOOPBACK));
+ if (oplock_sock == -1)
+ {
+ DEBUG(0,("open_oplock_ipc: Failed to get local UDP socket for \
+address %x. Error was %s\n", htonl(INADDR_LOOPBACK), strerror(errno)));
+ oplock_port = 0;
+ return(False);
+ }
+
+ /* Find out the transient UDP port we have been allocated. */
+ if(getsockname(oplock_sock, (struct sockaddr *)&sock_name, &len)<0)
+ {
+ DEBUG(0,("open_oplock_ipc: Failed to get local UDP port. Error was %s\n",
+ strerror(errno)));
+ close(oplock_sock);
+ oplock_sock = -1;
+ oplock_port = 0;
+ return False;
+ }
+ oplock_port = ntohs(sock_name.sin_port);
+
+ DEBUG(3,("open_oplock ipc: pid = %d, oplock_port = %u\n",
+ getpid(), oplock_port));
+
+ return True;
+}
+
+/****************************************************************************
+ process an oplock break message.
+****************************************************************************/
+static BOOL process_local_message(int sock, char *buffer, int buf_size)
+{
+ int32 msg_len;
+ int16 from_port;
+ char *msg_start;
+
+ msg_len = IVAL(buffer,UDP_CMD_LEN_OFFSET);
+ from_port = SVAL(buffer,UDP_CMD_PORT_OFFSET);
+
+ msg_start = &buffer[UDP_CMD_HEADER_LEN];
+
+ DEBUG(5,("process_local_message: Got a message of length %d from port (%d)\n",
+ msg_len, from_port));
+
+ /* Switch on message command - currently OPLOCK_BREAK_CMD is the
+ only valid request. */
+
+ switch(SVAL(msg_start,UDP_MESSAGE_CMD_OFFSET))
+ {
+ case OPLOCK_BREAK_CMD:
+ /* Ensure that the msg length is correct. */
+ if(msg_len != OPLOCK_BREAK_MSG_LEN)
+ {
+ DEBUG(0,("process_local_message: incorrect length for OPLOCK_BREAK_CMD (was %d, \
+should be %d).\n", msg_len, OPLOCK_BREAK_MSG_LEN));
+ return False;
+ }
+ {
+ uint32 remotepid = IVAL(msg_start,OPLOCK_BREAK_PID_OFFSET);
+ uint32 dev = IVAL(msg_start,OPLOCK_BREAK_DEV_OFFSET);
+ uint32 inode = IVAL(msg_start, OPLOCK_BREAK_INODE_OFFSET);
+ struct timeval tval;
+ struct sockaddr_in toaddr;
+
+ tval.tv_sec = IVAL(msg_start, OPLOCK_BREAK_SEC_OFFSET);
+ tval.tv_usec = IVAL(msg_start, OPLOCK_BREAK_USEC_OFFSET);
+
+ DEBUG(5,("process_local_message: oplock break request from \
+pid %d, port %d, dev = %x, inode = %x\n", remotepid, from_port, dev, inode));
+
+ /*
+ * If we have no record of any currently open oplocks,
+ * it's not an error, as a close command may have
+ * just been issued on the file that was oplocked.
+ * Just return success in this case.
+ */
+
+ if(global_oplocks_open != 0)
+ {
+ if(oplock_break(dev, inode, &tval) == False)
+ {
+ DEBUG(0,("process_local_message: oplock break failed - \
+not returning udp message.\n"));
+ return False;
+ }
+ }
+ else
+ {
+ DEBUG(3,("process_local_message: oplock break requested with no outstanding \
+oplocks. Returning success.\n"));
+ }
+
+ /* Send the message back after OR'ing in the 'REPLY' bit. */
+ SSVAL(msg_start,UDP_MESSAGE_CMD_OFFSET,OPLOCK_BREAK_CMD | CMD_REPLY);
+
+ bzero((char *)&toaddr,sizeof(toaddr));
+ toaddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ toaddr.sin_port = htons(from_port);
+ toaddr.sin_family = AF_INET;
+
+ if(sendto( sock, msg_start, OPLOCK_BREAK_MSG_LEN, 0,
+ (struct sockaddr *)&toaddr, sizeof(toaddr)) < 0)
+ {
+ DEBUG(0,("process_local_message: sendto process %d failed. Errno was %s\n",
+ remotepid, strerror(errno)));
+ return False;
+ }
+
+ DEBUG(5,("process_local_message: oplock break reply sent to \
+pid %d, port %d, for file dev = %x, inode = %x\n", remotepid,
+ from_port, dev, inode));
+
+ }
+ break;
+ /*
+ * Keep this as a debug case - eventually we can remove it.
+ */
+ case 0x8001:
+ DEBUG(0,("process_local_message: Received unsolicited break \
+reply - dumping info.\n"));
+
+ if(msg_len != OPLOCK_BREAK_MSG_LEN)
+ {
+ DEBUG(0,("process_local_message: ubr: incorrect length for reply \
+(was %d, should be %d).\n", msg_len, OPLOCK_BREAK_MSG_LEN));
+ return False;
+ }
+
+ {
+ uint32 remotepid = IVAL(msg_start,OPLOCK_BREAK_PID_OFFSET);
+ uint32 dev = IVAL(msg_start,OPLOCK_BREAK_DEV_OFFSET);
+ uint32 inode = IVAL(msg_start, OPLOCK_BREAK_INODE_OFFSET);
+
+ DEBUG(0,("process_local_message: unsolicited oplock break reply from \
+pid %d, port %d, dev = %x, inode = %x\n", remotepid, from_port, dev, inode));
+
+ }
+ return False;
+
+ default:
+ DEBUG(0,("process_local_message: unknown UDP message command code (%x) - ignoring.\n",
+ (unsigned int)SVAL(msg_start,0)));
+ return False;
+ }
+ return True;
+}
+
+/****************************************************************************
+ Process an oplock break directly.
+****************************************************************************/
+BOOL oplock_break(uint32 dev, uint32 inode, struct timeval *tval)
+{
+ extern int Client;
+ static char *inbuf = NULL;
+ static char *outbuf = NULL;
+ files_struct *fsp = NULL;
+ int fnum;
+ time_t start_time;
+ BOOL shutdown_server = False;
+
+ DEBUG(5,("oplock_break: called for dev = %x, inode = %x. Current \
+global_oplocks_open = %d\n", dev, inode, global_oplocks_open));
+
+ if(inbuf == NULL)
+ {
+ inbuf = (char *)malloc(BUFFER_SIZE + SAFETY_MARGIN);
+ if(inbuf == NULL) {
+ DEBUG(0,("oplock_break: malloc fail for input buffer.\n"));
+ return False;
+ }
+ outbuf = (char *)malloc(BUFFER_SIZE + SAFETY_MARGIN);
+ if(outbuf == NULL) {
+ DEBUG(0,("oplock_break: malloc fail for output buffer.\n"));
+ free(inbuf);
+ inbuf = NULL;
+ return False;
+ }
+ }
+
+ /* We need to search the file open table for the
+ entry containing this dev and inode, and ensure
+ we have an oplock on it. */
+ for( fnum = 0; fnum < MAX_OPEN_FILES; fnum++)
+ {
+ if(OPEN_FNUM(fnum))
+ {
+ fsp = &Files[fnum];
+ if((fsp->fd_ptr->dev == dev) && (fsp->fd_ptr->inode == inode) &&
+ (fsp->open_time.tv_sec == tval->tv_sec) &&
+ (fsp->open_time.tv_usec == tval->tv_usec))
+ break;
+ }
+ }
+
+ if(fsp == NULL)
+ {
+ /* The file could have been closed in the meantime - return success. */
+ DEBUG(3,("oplock_break: cannot find open file with dev = %x, inode = %x (fnum = %d) \
+allowing break to succeed.\n", dev, inode, fnum));
+ return True;
+ }
+
+ /* Ensure we have an oplock on the file */
+
+ /* There is a potential race condition in that an oplock could
+ have been broken due to another udp request, and yet there are
+ still oplock break messages being sent in the udp message
+ queue for this file. So return true if we don't have an oplock,
+ as we may have just freed it.
+ */
+
+ if(!fsp->granted_oplock)
+ {
+ DEBUG(3,("oplock_break: file %s (fnum = %d, dev = %x, inode = %x) has no oplock. \
+Allowing break to succeed regardless.\n", fsp->name, fnum, dev, inode));
+ return True;
+ }
+
+ /* Now comes the horrid part. We must send an oplock break to the client,
+ and then process incoming messages until we get a close or oplock release.
+ */
+
+ /* Prepare the SMBlockingX message. */
+ bzero(outbuf,smb_size);
+ set_message(outbuf,8,0,True);
+
+ SCVAL(outbuf,smb_com,SMBlockingX);
+ SSVAL(outbuf,smb_tid,fsp->cnum);
+ SSVAL(outbuf,smb_pid,0xFFFF);
+ SSVAL(outbuf,smb_uid,0);
+ SSVAL(outbuf,smb_mid,0xFFFF);
+ SCVAL(outbuf,smb_vwv0,0xFF);
+ SSVAL(outbuf,smb_vwv2,fnum);
+ SCVAL(outbuf,smb_vwv3,LOCKING_ANDX_OPLOCK_RELEASE);
+ /* Change this when we have level II oplocks. */
+ SCVAL(outbuf,smb_vwv3+1,OPLOCKLEVEL_NONE);
+
+ send_smb(Client, outbuf);
+
+ global_oplock_break = True;
+
+ /* Process incoming messages. */
+
+ /* JRA - If we don't get a break from the client in OPLOCK_BREAK_TIMEOUT
+ seconds we should just die.... */
+
+ start_time = time(NULL);
+
+ while(OPEN_FNUM(fnum) && fsp->granted_oplock)
+ {
+ if(receive_smb(Client,inbuf,OPLOCK_BREAK_TIMEOUT * 1000) == False)
+ {
+ /*
+ * Die if we got an error.
+ */
+
+ if (smb_read_error == READ_EOF)
+ DEBUG(0,("oplock_break: end of file from client\n"));
+
+ if (smb_read_error == READ_ERROR)
+ DEBUG(0,("oplock_break: receive_smb error (%s)\n",
+ strerror(errno)));
+
+ if (smb_read_error == READ_TIMEOUT)
+ DEBUG(0,("oplock_break: receive_smb timed out after %d seconds.\n",
+ OPLOCK_BREAK_TIMEOUT));
+
+ DEBUG(0,("oplock_break failed for file %s (fnum = %d, dev = %x, \
+inode = %x).\n", fsp->name, fnum, dev, inode));
+ shutdown_server = True;
+ break;
+ }
+ process_smb(inbuf, outbuf);
+
+ /* We only need this in case a readraw crossed on the wire. */
+ if(global_oplock_break)
+ global_oplock_break = False;
+
+ /*
+ * Die if we go over the time limit.
+ */
+
+ if((time(NULL) - start_time) > OPLOCK_BREAK_TIMEOUT)
+ {
+ DEBUG(0,("oplock_break: no break received from client within \
+%d seconds.\n", OPLOCK_BREAK_TIMEOUT));
+ DEBUG(0,("oplock_break failed for file %s (fnum = %d, dev = %x, \
+inode = %x).\n", fsp->name, fnum, dev, inode));
+ shutdown_server = True;
+ break;
+ }
+ }
+
+ /*
+ * If the client did not respond we must die.
+ */
+
+ if(shutdown_server)
+ {
+ DEBUG(0,("oplock_break: client failure in break - shutting down this smbd.\n"));
+ close_sockets();
+ close(oplock_sock);
+ exit_server("oplock break failure");
+ }
+
+ if(OPEN_FNUM(fnum))
+ {
+ /* The lockingX reply will have removed the oplock flag
+ from the sharemode. */
+ /* Paranoia.... */
+ fsp->granted_oplock = False;
+ }
+
+ global_oplocks_open--;
+
+ /* Santity check - remove this later. JRA */
+ if(global_oplocks_open < 0)
+ {
+ DEBUG(0,("oplock_break: global_oplocks_open < 0 (%d). PANIC ERROR\n",
+ global_oplocks_open));
+ exit_server("oplock_break: global_oplocks_open < 0");
+ }
+
+ DEBUG(5,("oplock_break: returning success for fnum = %d, dev = %x, inode = %x. Current \
+global_oplocks_open = %d\n", fnum, dev, inode, global_oplocks_open));
+
+ return True;
+}
+
+/****************************************************************************
+Send an oplock break message to another smbd process. If the oplock is held
+by the local smbd then call the oplock break function directly.
+****************************************************************************/
+
+BOOL request_oplock_break(min_share_mode_entry *share_entry,
+ uint32 dev, uint32 inode)
+{
+ char op_break_msg[OPLOCK_BREAK_MSG_LEN];
+ struct sockaddr_in addr_out;
+ int pid = getpid();
+
+ if(pid == share_entry->pid)
+ {
+ /* We are breaking our own oplock, make sure it's us. */
+ if(share_entry->op_port != oplock_port)
+ {
+ DEBUG(0,("request_oplock_break: corrupt share mode entry - pid = %d, port = %d \
+should be %d\n", pid, share_entry->op_port, oplock_port));
+ return False;
+ }
+
+ DEBUG(5,("request_oplock_break: breaking our own oplock\n"));
+
+ /* Call oplock break direct. */
+ return oplock_break(dev, inode, &share_entry->time);
+ }
+
+ /* We need to send a OPLOCK_BREAK_CMD message to the
+ port in the share mode entry. */
+
+ SSVAL(op_break_msg,UDP_MESSAGE_CMD_OFFSET,OPLOCK_BREAK_CMD);
+ SIVAL(op_break_msg,OPLOCK_BREAK_PID_OFFSET,pid);
+ SIVAL(op_break_msg,OPLOCK_BREAK_DEV_OFFSET,dev);
+ SIVAL(op_break_msg,OPLOCK_BREAK_INODE_OFFSET,inode);
+ SIVAL(op_break_msg,OPLOCK_BREAK_SEC_OFFSET,(uint32)share_entry->time.tv_sec);
+ SIVAL(op_break_msg,OPLOCK_BREAK_USEC_OFFSET,(uint32)share_entry->time.tv_usec);
+
+ /* set the address and port */
+ bzero((char *)&addr_out,sizeof(addr_out));
+ addr_out.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ addr_out.sin_port = htons( share_entry->op_port );
+ addr_out.sin_family = AF_INET;
+
+ DEBUG(3,("request_oplock_break: sending a oplock break message to pid %d on port %d \
+for dev = %x, inode = %x\n", share_entry->pid, share_entry->op_port, dev, inode));
+
+ if(sendto(oplock_sock,op_break_msg,OPLOCK_BREAK_MSG_LEN,0,
+ (struct sockaddr *)&addr_out,sizeof(addr_out)) < 0)
+ {
+ DEBUG(0,("request_oplock_break: failed when sending a oplock break message \
+to pid %d on port %d for dev = %x, inode = %x. Error was %s\n",
+ share_entry->pid, share_entry->op_port, dev, inode,
+ strerror(errno)));
+ return False;
+ }
+
+ /*
+ * Now we must await the oplock broken message coming back
+ * from the target smbd process. Timeout if it fails to
+ * return in OPLOCK_BREAK_TIMEOUT seconds.
+ * While we get messages that aren't ours, loop.
+ */
+
+ while(1)
+ {
+ char op_break_reply[UDP_CMD_HEADER_LEN+OPLOCK_BREAK_MSG_LEN];
+ int32 reply_msg_len;
+ int16 reply_from_port;
+ char *reply_msg_start;
+
+ if(receive_local_message(oplock_sock, op_break_reply, sizeof(op_break_reply),
+ OPLOCK_BREAK_TIMEOUT * 1000) == False)
+ {
+ if(smb_read_error == READ_TIMEOUT)
+ DEBUG(0,("request_oplock_break: no response received to oplock break request to \
+pid %d on port %d for dev = %x, inode = %x\n", share_entry->pid,
+ share_entry->op_port, dev, inode));
+ else
+ DEBUG(0,("request_oplock_break: error in response received to oplock break request to \
+pid %d on port %d for dev = %x, inode = %x. Error was (%s).\n", share_entry->pid,
+ share_entry->op_port, dev, inode, strerror(errno)));
+ return False;
+ }
+
+ /*
+ * If the response we got was not an answer to our message, but
+ * was a completely different request, push it onto the pending
+ * udp message stack so that we can deal with it in the main loop.
+ * It may be another oplock break request to us.
+ */
+
+ /*
+ * Local note from JRA. There exists the possibility of a denial
+ * of service attack here by allowing non-root processes running
+ * on a local machine sending many of these pending messages to
+ * a smbd port. Currently I'm not sure how to restrict the messages
+ * I will queue (although I could add a limit to the queue) to
+ * those received by root processes only. There should be a
+ * way to make this bulletproof....
+ */
+
+ reply_msg_len = IVAL(op_break_reply,UDP_CMD_LEN_OFFSET);
+ reply_from_port = SVAL(op_break_reply,UDP_CMD_PORT_OFFSET);
+
+ reply_msg_start = &op_break_reply[UDP_CMD_HEADER_LEN];
+
+ if(reply_msg_len != OPLOCK_BREAK_MSG_LEN)
+ {
+ /* Ignore it. */
+ DEBUG(0,("request_oplock_break: invalid message length received. Ignoring\n"));
+ continue;
+ }
+
+ if(((SVAL(reply_msg_start,UDP_MESSAGE_CMD_OFFSET) & CMD_REPLY) == 0) ||
+ (reply_from_port != share_entry->op_port) ||
+ (memcmp(&reply_msg_start[OPLOCK_BREAK_PID_OFFSET],
+ &op_break_msg[OPLOCK_BREAK_PID_OFFSET],
+ OPLOCK_BREAK_MSG_LEN - OPLOCK_BREAK_PID_OFFSET) != 0))
+ {
+ DEBUG(3,("request_oplock_break: received other message whilst awaiting \
+oplock break response from pid %d on port %d for dev = %x, inode = %x.\n",
+ share_entry->pid, share_entry->op_port, dev, inode));
+ if(push_local_message(op_break_reply, sizeof(op_break_reply)) == False)
+ return False;
+ continue;
+ }
+
+ break;
+ }
+
+ DEBUG(3,("request_oplock_break: broke oplock.\n"));
+
+ return True;
+}
/****************************************************************************
check if a snum is in use
if (lp_loaded())
{
pstring fname;
- strcpy(fname,lp_configfile());
+ pstrcpy(fname,lp_configfile());
if (file_exist(fname,NULL) && !strcsequal(fname,servicesf))
{
- strcpy(servicesf,fname);
+ pstrcpy(servicesf,fname);
test = False;
}
}
}
/* admin user check */
- if (user_in_list(user,lp_admin_users(snum)) &&
- !pcon->read_only)
+
+ /* JRA - original code denied admin user if the share was
+ marked read_only. Changed as I don't think this is needed,
+ but old code left in case there is a problem here.
+ */
+ if (user_in_list(user,lp_admin_users(snum))
+#if 0
+ && !pcon->read_only)
+#else
+ )
+#endif
{
pcon->admin_user = True;
DEBUG(0,("%s logged in as admin user (root privileges)\n",user));
pcon->printer = (strncmp(dev,"LPT",3) == 0);
pcon->ipc = (strncmp(dev,"IPC",3) == 0);
pcon->dirptr = NULL;
+ pcon->veto_list = NULL;
+ pcon->hide_list = NULL;
string_set(&pcon->dirpath,"");
string_set(&pcon->user,user);
{
struct passwd *pass2;
fstring fuser;
- strcpy(fuser,lp_force_user(snum));
+ fstrcpy(fuser,lp_force_user(snum));
pass2 = (struct passwd *)Get_Pwnam(fuser,True);
if (pass2)
{
pcon->uid = pass2->pw_uid;
string_set(&pcon->user,fuser);
- strcpy(user,fuser);
+ fstrcpy(user,fuser);
pcon->force_user = True;
DEBUG(3,("Forced user %s\n",fuser));
}
{
pstring s;
- strcpy(s,lp_pathname(snum));
+ pstrcpy(s,lp_pathname(snum));
standard_sub(cnum,s);
string_set(&pcon->connectpath,s);
DEBUG(3,("Connect path is %s\n",s));
if (*lp_rootpreexec(SNUM(cnum)))
{
pstring cmd;
- strcpy(cmd,lp_rootpreexec(SNUM(cnum)));
+ pstrcpy(cmd,lp_rootpreexec(SNUM(cnum)));
standard_sub(cnum,cmd);
DEBUG(5,("cmd=%s\n",cmd));
smbrun(cmd,NULL,False);
/* resolve any soft links early */
{
pstring s;
- strcpy(s,pcon->connectpath);
+ pstrcpy(s,pcon->connectpath);
GetWd(s);
string_set(&pcon->connectpath,s);
ChDir(pcon->connectpath);
if (*lp_preexec(SNUM(cnum)))
{
pstring cmd;
- strcpy(cmd,lp_preexec(SNUM(cnum)));
+ pstrcpy(cmd,lp_preexec(SNUM(cnum)));
standard_sub(cnum,cmd);
smbrun(cmd,NULL,False);
}
/* we've finished with the sensitive stuff */
unbecome_user();
+ /* Add veto/hide lists */
+ if (!IS_IPC(cnum) && !IS_PRINT(cnum))
+ {
+ set_namearray( &pcon->veto_list, lp_veto_files(SNUM(cnum)));
+ set_namearray( &pcon->hide_list, lp_hide_files(SNUM(cnum)));
+ }
+
{
DEBUG(IS_IPC(cnum)?3:1,("%s %s (%s) connect to service %s as user %s (uid=%d,gid=%d) (pid %d)\n",
timestring(),
set_message(outbuf,13,doencrypt?8:0,True);
SSVAL(outbuf,smb_vwv1,secword);
-#ifdef SMB_PASSWD
/* Create a token value and add it to the outgoing packet. */
if (doencrypt)
generate_next_challenge(smb_buf(outbuf));
-#endif
Protocol = PROTOCOL_LANMAN1;
if (lp_security() == SEC_SERVER && server_cryptkey(outbuf)) {
DEBUG(3,("using password server validation\n"));
-#ifdef SMB_PASSWD
if (doencrypt) set_challenge(smb_buf(outbuf));
-#endif
}
CVAL(outbuf,smb_flg) = 0x81; /* Reply, SMBlockread, SMBwritelock supported */
set_message(outbuf,13,doencrypt?8:0,True);
SSVAL(outbuf,smb_vwv1,secword);
-#ifdef SMB_PASSWD
/* Create a token value and add it to the outgoing packet. */
if (doencrypt)
generate_next_challenge(smb_buf(outbuf));
-#endif
SIVAL(outbuf,smb_vwv6,getpid());
if (lp_security() == SEC_SERVER && server_cryptkey(outbuf)) {
DEBUG(3,("using password server validation\n"));
-#ifdef SMB_PASSWD
if (doencrypt) set_challenge(smb_buf(outbuf));
-#endif
}
CVAL(outbuf,smb_flg) = 0x81; /* Reply, SMBlockread, SMBwritelock supported */
#endif
CVAL(outbuf,smb_vwv1) = secword;
-#ifdef SMB_PASSWD
/* Create a token value and add it to the outgoing packet. */
if (doencrypt)
{
/* Tell the nt machine how long the challenge is. */
SSVALS(outbuf,smb_vwv16+1,challenge_len);
}
-#endif
Protocol = PROTOCOL_NT1;
if (lp_security() == SEC_SERVER && server_cryptkey(outbuf)) {
DEBUG(3,("using password server validation\n"));
-#ifdef SMB_PASSWD
if (doencrypt) set_challenge(smb_buf(outbuf));
-#endif
}
SSVAL(outbuf,smb_mid,mid); /* Restore possibly corrupted mid */
****************************************************************************/
static int reply_negprot(char *inbuf,char *outbuf)
{
- extern fstring remote_arch;
int outsize = set_message(outbuf,1,0,True);
int Index=0;
int choice= -1;
switch ( arch ) {
case ARCH_SAMBA:
- strcpy(remote_arch,"Samba");
+ set_remote_arch(RA_SAMBA);
break;
case ARCH_WFWG:
- strcpy(remote_arch,"WfWg");
+ set_remote_arch(RA_WFWG);
break;
case ARCH_WIN95:
- strcpy(remote_arch,"Win95");
+ set_remote_arch(RA_WIN95);
break;
case ARCH_WINNT:
- strcpy(remote_arch,"WinNT");
+ set_remote_arch(RA_WINNT);
break;
case ARCH_OS2:
- strcpy(remote_arch,"OS2");
+ set_remote_arch(RA_OS2);
break;
default:
- strcpy(remote_arch,"UNKNOWN");
+ set_remote_arch(RA_UNKNOWN);
break;
}
SSVAL(outbuf,smb_vwv0,choice);
if(choice != -1) {
extern fstring remote_proto;
- strcpy(remote_proto,supported_protocols[protocol].short_name);
+ fstrcpy(remote_proto,supported_protocols[protocol].short_name);
reload_services(True);
outsize = supported_protocols[protocol].proto_reply_fn(outbuf);
DEBUG(3,("Selected protocol %s\n",supported_protocols[protocol].proto_name));
Connections[cnum].ngroups = 0;
}
+ free_namearray(Connections[cnum].veto_list);
+ free_namearray(Connections[cnum].hide_list);
+
string_set(&Connections[cnum].user,"");
string_set(&Connections[cnum].dirpath,"");
string_set(&Connections[cnum].connectpath,"");
bzero(&crec,sizeof(crec));
- strcpy(fname,lp_lockdir());
+ pstrcpy(fname,lp_lockdir());
standard_sub(cnum,fname);
trim_string(fname,"","/");
DEBUG(5,("trying claim %s %s %d\n",lp_lockdir(),name,max_connections));
- strcpy(fname,lp_lockdir());
+ pstrcpy(fname,lp_lockdir());
standard_sub(cnum,fname);
trim_string(fname,"","/");
{
char *p;
pstring dname;
- strcpy(dname,debugf);
+ pstrcpy(dname,debugf);
if ((p=strrchr(dname,'/'))) *p=0;
strcat(dname,"/corefiles");
mkdir(dname,0700);
DEBUG(2,("Closing connections\n"));
for (i=0;i<MAX_CONNECTIONS;i++)
if (Connections[i].open)
- close_cnum(i,-1);
+ close_cnum(i,(uint16)-1);
#ifdef DFS_AUTH
if (dcelogin_atmost_once)
dfs_unlogin();
/****************************************************************************
do some standard substitutions in a string
****************************************************************************/
-void standard_sub(int cnum,char *s)
+void standard_sub(int cnum,char *str)
{
- if (!strchr(s,'%')) return;
-
- if (VALID_CNUM(cnum))
- {
- string_sub(s,"%S",lp_servicename(Connections[cnum].service));
- string_sub(s,"%P",Connections[cnum].connectpath);
- string_sub(s,"%u",Connections[cnum].user);
- if (strstr(s,"%H")) {
- char *home = get_home_dir(Connections[cnum].user);
- if (home) string_sub(s,"%H",home);
+ if (VALID_CNUM(cnum)) {
+ char *p, *s, *home;
+
+ for ( s=str ; (p=strchr(s, '%')) != NULL ; s=p ) {
+ switch (*(p+1)) {
+ case 'H' : if ((home = get_home_dir(Connections[cnum].user))!=NULL)
+ string_sub(p,"%H",home);
+ else
+ p += 2;
+ break;
+ case 'P' : string_sub(p,"%P",Connections[cnum].connectpath); break;
+ case 'S' : string_sub(p,"%S",lp_servicename(Connections[cnum].service)); break;
+ case 'g' : string_sub(p,"%g",gidtoname(Connections[cnum].gid)); break;
+ case 'u' : string_sub(p,"%u",Connections[cnum].user); break;
+ case '\0' : p++; break; /* don't run off the end of the string */
+ default : p+=2; break;
}
- string_sub(s,"%g",gidtoname(Connections[cnum].gid));
}
- standard_sub_basic(s);
+ }
+ standard_sub_basic(str);
}
/*
return(outsize);
}
-
/****************************************************************************
process commands from the client
****************************************************************************/
static void process(void)
{
- static int trans_num = 0;
- int nread;
extern int Client;
InBuffer = (char *)malloc(BUFFER_SIZE + SAFETY_MARGIN);
#endif
while (True)
- {
- int32 len;
- int msg_type;
- int msg_flags;
- int type;
- int deadtime = lp_deadtime()*60;
- int counter;
- int last_keepalive=0;
-
- if (deadtime <= 0)
- deadtime = DEFAULT_SMBD_TIMEOUT;
-
- if (lp_readprediction())
- do_read_prediction();
-
- errno = 0;
-
- for (counter=SMBD_SELECT_LOOP;
- !receive_smb(Client,InBuffer,SMBD_SELECT_LOOP*1000);
- counter += SMBD_SELECT_LOOP)
- {
- int i;
- time_t t;
- BOOL allidle = True;
- extern int keepalive;
-
- if (smb_read_error == READ_EOF) {
- DEBUG(3,("end of file from client\n"));
- return;
- }
-
- if (smb_read_error == READ_ERROR) {
- DEBUG(3,("receive_smb error (%s) exiting\n",
- strerror(errno)));
- return;
- }
-
- t = time(NULL);
+ {
+ int deadtime = lp_deadtime()*60;
+ int counter;
+ int last_keepalive=0;
+ int service_load_counter = 0;
+ BOOL got_smb = False;
- /* become root again if waiting */
- unbecome_user();
+ if (deadtime <= 0)
+ deadtime = DEFAULT_SMBD_TIMEOUT;
- /* check for smb.conf reload */
- if (!(counter%SMBD_RELOAD_CHECK))
- reload_services(True);
+ if (lp_readprediction())
+ do_read_prediction();
-#if 0 /* JRA */
- /* check the share modes every 10 secs */
- if (!(counter%SHARE_MODES_CHECK))
- check_share_modes();
+ errno = 0;
- /* clean the share modes every 5 minutes */
- if (!(counter%SHARE_MODES_CLEAN))
- clean_share_modes();
-#endif /* JRA */
+ for (counter=SMBD_SELECT_LOOP;
+ !receive_message_or_smb(Client,oplock_sock,
+ InBuffer,BUFFER_SIZE,SMBD_SELECT_LOOP*1000,&got_smb);
+ counter += SMBD_SELECT_LOOP)
+ {
+ int i;
+ time_t t;
+ BOOL allidle = True;
+ extern int keepalive;
- /* automatic timeout if all connections are closed */
- if (num_connections_open==0 && counter >= IDLE_CLOSED_TIMEOUT) {
- DEBUG(2,("%s Closing idle connection\n",timestring()));
- return;
- }
+ if (counter > 365 * 3600) /* big number of seconds. */
+ {
+ counter = 0;
+ service_load_counter = 0;
+ }
- if (keepalive && (counter-last_keepalive)>keepalive) {
- extern int password_client;
- if (!send_keepalive(Client)) {
- DEBUG(2,("%s Keepalive failed - exiting\n",timestring()));
- return;
- }
- /* also send a keepalive to the password server if its still
- connected */
- if (password_client != -1)
- send_keepalive(password_client);
- last_keepalive = counter;
- }
+ if (smb_read_error == READ_EOF)
+ {
+ DEBUG(3,("end of file from client\n"));
+ return;
+ }
- /* check for connection timeouts */
- for (i=0;i<MAX_CONNECTIONS;i++)
- if (Connections[i].open)
- {
- /* close dirptrs on connections that are idle */
- if ((t-Connections[i].lastused)>DPTR_IDLE_TIMEOUT)
- dptr_idlecnum(i);
-
- if (Connections[i].num_files_open > 0 ||
- (t-Connections[i].lastused)<deadtime)
- allidle = False;
- }
-
- if (allidle && num_connections_open>0) {
- DEBUG(2,("%s Closing idle connection 2\n",timestring()));
- return;
- }
- }
+ if (smb_read_error == READ_ERROR)
+ {
+ DEBUG(3,("receive_smb error (%s) exiting\n",
+ strerror(errno)));
+ return;
+ }
- msg_type = CVAL(InBuffer,0);
- msg_flags = CVAL(InBuffer,1);
- type = CVAL(InBuffer,smb_com);
+ t = time(NULL);
- len = smb_len(InBuffer);
+ /* become root again if waiting */
+ unbecome_user();
- DEBUG(6,("got message type 0x%x of len 0x%x\n",msg_type,len));
+ /* check for smb.conf reload */
+ if (counter >= service_load_counter + SMBD_RELOAD_CHECK)
+ {
+ service_load_counter = counter;
- nread = len + 4;
-
- DEBUG(3,("%s Transaction %d of length %d\n",timestring(),trans_num,nread));
+ /* reload services, if files have changed. */
+ reload_services(True);
+ }
-#ifdef WITH_VTP
- if(trans_num == 1 && VT_Check(InBuffer)) {
- VT_Process();
+ /* automatic timeout if all connections are closed */
+ if (num_connections_open==0 && counter >= IDLE_CLOSED_TIMEOUT)
+ {
+ DEBUG(2,("%s Closing idle connection\n",timestring()));
return;
}
-#endif
+ if (keepalive && (counter-last_keepalive)>keepalive)
+ {
+ extern int password_client;
+ if (!send_keepalive(Client))
+ {
+ DEBUG(2,("%s Keepalive failed - exiting\n",timestring()));
+ return;
+ }
+ /* also send a keepalive to the password server if its still
+ connected */
+ if (password_client != -1)
+ send_keepalive(password_client);
+ last_keepalive = counter;
+ }
- if (msg_type == 0)
- show_msg(InBuffer);
+ /* check for connection timeouts */
+ for (i=0;i<MAX_CONNECTIONS;i++)
+ if (Connections[i].open)
+ {
+ /* close dirptrs on connections that are idle */
+ if ((t-Connections[i].lastused)>DPTR_IDLE_TIMEOUT)
+ dptr_idlecnum(i);
- nread = construct_reply(InBuffer,OutBuffer,nread,max_send);
-
- if(nread > 0) {
- if (CVAL(OutBuffer,0) == 0)
- show_msg(OutBuffer);
-
- if (nread != smb_len(OutBuffer) + 4)
- {
- DEBUG(0,("ERROR: Invalid message response size! %d %d\n",
- nread,
- smb_len(OutBuffer)));
- }
- else
- send_smb(Client,OutBuffer);
+ if (Connections[i].num_files_open > 0 ||
+ (t-Connections[i].lastused)<deadtime)
+ allidle = False;
+ }
+
+ if (allidle && num_connections_open>0)
+ {
+ DEBUG(2,("%s Closing idle connection 2\n",timestring()));
+ return;
}
- trans_num++;
}
+
+ if(got_smb)
+ process_smb(InBuffer, OutBuffer);
+ else
+ process_local_message(oplock_sock, InBuffer, BUFFER_SIZE);
+ }
}
setup_logging(argv[0],False);
- charset_initialise(-1);
+ charset_initialise();
/* make absolutely sure we run as root - to handle cases whre people
are crazy enough to have it setuid */
reopen_logs();
DEBUG(2,("%s smbd version %s started\n",timestring(),VERSION));
- DEBUG(2,("Copyright Andrew Tridgell 1992-1995\n"));
+ DEBUG(2,("Copyright Andrew Tridgell 1992-1997\n"));
#ifndef NO_GETRLIMIT
#ifdef RLIMIT_NOFILE
if (!reload_services(False))
return(-1);
- charset_initialise(lp_client_code_page());
+ codepage_initialise(lp_client_code_page());
strcpy(myworkgroup, lp_workgroup());
char buf[20];
if ((fd = open(pidFile,
- O_NONBLOCK | O_CREAT | O_WRONLY | O_TRUNC, 0644)) < 0)
+#ifdef O_NONBLOCK
+ O_NONBLOCK |
+#endif
+ O_CREAT | O_WRONLY | O_TRUNC, 0644)) < 0)
{
DEBUG(0,("ERROR: can't open %s: %s\n", pidFile, strerror(errno)));
exit(1);
DEBUG(2,("%s changed root to %s\n",timestring(),lp_rootdir()));
}
+ /* Setup the oplock IPC socket. */
+ if(!open_oplock_ipc())
+ exit(1);
+
process();
close_sockets();
git.samba.org / kai / samba.git / blobdiff