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-rw-r--r--examples/VFS/block/block.c546
1 files changed, 0 insertions, 546 deletions
diff --git a/examples/VFS/block/block.c b/examples/VFS/block/block.c
deleted file mode 100644
index 3c4f736e849..00000000000
--- a/examples/VFS/block/block.c
+++ /dev/null
@@ -1,546 +0,0 @@
-/*
- *
- * Block access from links to dev mount points specified in PARAMCONF file
- *
- * Copyright (C) Ronald Kuetemeier, 2001
- *
- * 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.
- */
-
-#include "config.h"
-#include <stdio.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <string.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-
-
-#ifdef HAVE_UTIME_H
-#include <utime.h>
-#endif
-#ifdef HAVE_DIRENT_H
-#include <dirent.h>
-#endif
-#include <syslog.h>
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-
-
-#include <includes.h>
-#include <vfs.h>
-
-
-
-DIR *block_opendir(struct connection_struct *conn, char *fname);
-int block_connect(struct connection_struct *conn, char *service, char *user);
-void block_disconnect(struct connection_struct *conn);
-
-
-/* VFS operations */
-
-
-extern struct vfs_ops default_vfs_ops; /* For passthrough operation */
-
-struct vfs_ops execute_vfs_ops = {
-
- /* Disk operations */
-
- block_connect,
- block_disconnect,
- NULL, /* disk free */
-
- /* Directory operations */
-
- block_opendir,
- NULL, /* readdir */
- NULL,
- NULL,
- NULL, /* closedir */
-
- /* File operations */
-
- NULL,
- NULL,
- NULL, /* read */
- NULL, /* write */
- NULL, /* lseek */
- NULL,
- NULL, /* fsync */
- NULL, /* stat */
- NULL, /* fstat */
- NULL, /* lstat */
- NULL,
- NULL,
- NULL,
- NULL, /* chown */
- NULL,
- NULL, /* chdir */
- NULL, /* getwd */
- NULL, /* utime */
- NULL, /* ftruncate */
- NULL, /* lock */
- NULL, /* fget_nt_acl */
- NULL, /* get_nt_acl */
- NULL, /* fset_nt_acl */
- NULL, /* set_nt_acl */
- NULL,
- NULL
-};
-
-
-#ifndef PARAMCONF
-#define PARAMCONF "/etc/samba-block.conf"
-#endif
-
-extern BOOL pm_process(char *FileName, BOOL (*sfunc)(char *), BOOL(*pfunc)(char * , char *));
-
-//functions
-
-BOOL enter_pblock_mount(char *dir);
-BOOL get_section(char *sect);
-BOOL get_parameter_value(char *param, char *value);
-BOOL load_param(void);
-BOOL search(struct stat *stat_buf);
-BOOL dir_search(char *link, char *dir);
-BOOL enter_pblock_dir(char *dir);
-
-
-
-typedef struct block_dir
-{
- dev_t st_dev;
- int str_len;
- char *dir_name;
- struct block_dir *next;
-} block_dir;
-
-
-static char *params[] = {"mount_point","dir_name"};
-enum { MOUNT_POINT , DIR_NAME };
-
-static struct block_dir *pblock_mountp = NULL;
-static struct block_dir *pblock_dir = NULL;
-
-
-
-/*
- * Load the conf file into a table
- */
-
-BOOL load_param(void)
-{
-
- if ((pm_process(PARAMCONF,&get_section,&get_parameter_value)) == TRUE)
- {
- return TRUE;
-
- }
- return FALSE;
-}
-
-
-
-/*
- * Enter the key and data into the list
- *
- */
-
-BOOL enter_pblock_mount(char *dir)
-{
- struct stat stat_buf;
- static struct block_dir *tmp_pblock;
-
-
- if((stat(dir,&stat_buf)) != 0)
- {
- return FALSE;
- }
-
- if(pblock_mountp == NULL)
- {
- pblock_mountp = calloc(1, sizeof(block_dir));
- if( pblock_mountp == NULL)
- {
- return FALSE;
- }
- tmp_pblock = pblock_mountp;
- tmp_pblock->next = NULL;
-
- }else
- {
- tmp_pblock->next = calloc(1, sizeof(block_dir));
- if(tmp_pblock->next == NULL)
- {
- return FALSE;
- }
- tmp_pblock = tmp_pblock->next;
- tmp_pblock->next = NULL;
-
- }
-
-
- tmp_pblock->st_dev = stat_buf.st_dev;
- tmp_pblock->dir_name = strdup(dir);
-
-
- return TRUE;
-
-}
-
-
-/*
- * Enter the key and data into the list
- *
- */
-
-BOOL enter_pblock_dir(char *dir)
-{
- static struct block_dir *tmp_pblock;
-
-
- if(pblock_dir == NULL)
- {
- pblock_dir = calloc(1, sizeof(block_dir));
- if( pblock_dir == NULL)
- {
- return FALSE;
- }
- tmp_pblock = pblock_dir;
- tmp_pblock->next = NULL;
-
- }else
- {
- tmp_pblock->next = calloc(1, sizeof(block_dir));
- if(tmp_pblock->next == NULL)
- {
- return FALSE;
- }
- tmp_pblock = tmp_pblock->next;
- tmp_pblock->next = NULL;
-
- }
-
-
- tmp_pblock->dir_name = strdup(dir);
- tmp_pblock->str_len = strlen(dir);
-
-
- return TRUE;
-
-}
-
-
-
-
-/*
- * Function callback for config section names
- */
-
-BOOL get_section(char *sect)
-{
- return TRUE;
-}
-
-
-
-/*
- * Function callback for config parameter value pairs
- *
- */
-
-BOOL get_parameter_value(char *param, char *value)
-{
- int i = 0, maxargs = sizeof(params) / sizeof(char *);
-
-
- for( i= 0; i < maxargs; i++)
- {
- if (strcmp(param,params[i]) == 0)
- {
- switch(i)
- {
- case MOUNT_POINT :
- enter_pblock_mount(value);
- break;
- case DIR_NAME :
- enter_pblock_dir(value);
- break;
- default :
- break;
- }
- }
- }
-
- return TRUE;
-
-}
-
-
-
-
-/* VFS initialisation function. Return initialised vfs_ops structure
- back to SAMBA. */
-
-struct vfs_ops *vfs_init(int *vfs_version)
-{
- *vfs_version = SMB_VFS_INTERFACE_VERSION;
-
- return(&execute_vfs_ops);
-}
-
-
-/*
- * VFS connect and param file loading
- */
-
-int block_connect(struct connection_struct *conn, char *service, char *user)
-{
- if((load_param()) == FALSE)
- {
-
- return -1;
-
- }
-
- DEBUG(0,("%s connecting \n",conn->user));
-
- return (default_vfs_ops.connect(conn, service,user));
-}
-
-/*
- * Free allocated structures and disconnect
- *
- */
-
-
-void block_disconnect(struct connection_struct *conn)
-{
-
- struct block_dir *tmp_pblock = (pblock_mountp == NULL ? pblock_dir : pblock_mountp);
- struct block_dir *free_pblock = NULL;
-
- while(tmp_pblock != NULL)
- {
- free(tmp_pblock->dir_name);
- free_pblock = tmp_pblock;
- tmp_pblock = tmp_pblock->next;
- free(free_pblock);
-
- if(tmp_pblock == NULL && pblock_dir != NULL)
- {
- tmp_pblock = (pblock_mountp == NULL ? pblock_dir : NULL);
- pblock_dir = NULL;
-
- }
-
- }
-
-
-
- default_vfs_ops.disconnect(conn);
-}
-
-/*
- * VFS opendir
- */
-
-DIR *block_opendir(struct connection_struct *conn, char *fname)
-{
-
- char *dir_name = NULL;
- struct stat stat_buf;
-
- dir_name = alloca((strlen(conn->origpath) + strlen(fname) + 2) * sizeof(char));
-
- pstrcpy(dir_name,conn->origpath);
- pstrcat(dir_name, "/");
- strncat(dir_name, fname, strcspn(fname,"/"));
-
- if((lstat(dir_name,&stat_buf)) == 0)
- {
- if((S_ISLNK(stat_buf.st_mode)) == 1)
- {
- stat(dir_name,&stat_buf);
- if((search(&stat_buf) || dir_search(dir_name, fname) ) == TRUE)
- {
- DEBUG(0,("%s used link to blocked dir: %s \n", conn->user, dir_name));
- errno = EACCES;
- return NULL;
- }
- }
- }
-
- return (default_vfs_ops.opendir(conn, fname));
-}
-
-
-/*
- * Find mount point to block in list
- */
-
-BOOL search(struct stat *stat_buf)
-{
- struct block_dir *tmp_pblock = pblock_mountp;
-
- while(tmp_pblock != NULL)
- {
-
- if(tmp_pblock->st_dev == stat_buf->st_dev)
- {
- return TRUE;
- }
- tmp_pblock = tmp_pblock->next;
- }
-
- return FALSE;
-
-}
-
-/*
- * Find dir in list to block id the starting point is link from a share
- */
-
-BOOL dir_search(char *link, char *dir)
-{
- char buf[PATH_MAX +1], *ext_path;
- int len = 0;
- struct block_dir *tmp_pblock = pblock_dir;
-
- if((len = readlink(link,buf,sizeof(buf))) == -1)
- {
- return TRUE;
-
- }else
- {
- buf[len] = '\0';
- }
-
-
- if((ext_path = strchr(dir,'/')) != NULL)
- {
- pstrcat(buf,&ext_path[1]);
- len = strlen(buf);
- }
-
- while(tmp_pblock != NULL)
- {
- if(len < tmp_pblock->str_len)
- {
- tmp_pblock = tmp_pblock->next;
- continue;
- }
-
- if((strstr(buf,tmp_pblock->dir_name)) != NULL)
- {
- return TRUE;
- }
- tmp_pblock = tmp_pblock->next;
- }
-
-
- return FALSE;
-
-}
-
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