Create SFFS library out of HGFS

This Shared Folders File System library (libsffs) now contains all the
file system logic originally in HGFS. The actual HGFS server code is
now a stub that passes on all the work to libsffs. The libhgfs library
is changed accordingly.

include/Makefile.minix.inc

@@ -14,7 +14,7 @@ INCS+= 	minix/acpi.h minix/audio_fw.h minix/bitmap.h \
 	minix/keymap.h minix/limits.h minix/mthread.h minix/minlib.h \
 	minix/netdriver.h minix/optset.h minix/partition.h minix/portio.h \
 	minix/priv.h minix/procfs.h minix/profile.h minix/queryparam.h \
-	minix/rs.h minix/safecopies.h minix/sched.h minix/sef.h \
+	minix/rs.h minix/safecopies.h minix/sched.h minix/sef.h minix/sffs.h \
 	minix/sound.h minix/spin.h minix/sys_config.h minix/sysinfo.h \
 	minix/syslib.h minix/sysutil.h minix/timers.h minix/type.h \
 	minix/tty.h minix/u64.h minix/usb.h minix/usb_ch9.h minix/vbox.h \

include/minix/hgfs.h

@@ -1,56 +1,11 @@
 /* Part of libhgfs - (c) 2009, D.C. van Moolenbroek */
 
-#ifndef _HGFS_H
+#ifndef _MINIX_HGFS_H
-#define _HGFS_H
+#define _MINIX_HGFS_H
 
-#include <sys/types.h>
+#include <minix/sffs.h>
-#include <minix/u64.h>
-#include <time.h>
 
-typedef void *hgfs_file_t;		/* handle to open file */
+int hgfs_init(const struct sffs_table **tablep);
-typedef void *hgfs_dir_t;		/* handle to directory search */
-
-struct hgfs_attr {
-  u32_t a_mask;				/* which fields to retrieve/set */
-  mode_t a_mode;			/* file type and permissions */
-  u64_t a_size;				/* file size */
-  struct timespec a_crtime;		/* file creation time */
-  struct timespec a_atime;		/* file access time */
-  struct timespec a_mtime;		/* file modification time */
-  struct timespec a_ctime;		/* file change time */
-};
-
-#define HGFS_ATTR_SIZE		0x01	/* get/set file size */
-#define HGFS_ATTR_CRTIME	0x02	/* get/set file creation time */
-#define HGFS_ATTR_ATIME		0x04	/* get/set file access time */
-#define HGFS_ATTR_MTIME		0x08	/* get/set file modification time */
-#define HGFS_ATTR_CTIME		0x10	/* get/set file change time */
-#define HGFS_ATTR_MODE		0x20	/* get/set file mode */
-
-int hgfs_init(void);
 void hgfs_cleanup(void);
 
-int hgfs_open(char *path, int flags, int mode, hgfs_file_t *handle);
+#endif /* _MINIX_HGFS_H */
-int hgfs_read(hgfs_file_t handle, char *buf, size_t size, u64_t offset);
-int hgfs_write(hgfs_file_t handle, char *buf, size_t len, u64_t offset);
-int hgfs_close(hgfs_file_t handle);
-
-size_t hgfs_readbuf(char **ptr);
-size_t hgfs_writebuf(char **ptr);
-
-int hgfs_opendir(char *path, hgfs_dir_t *handle);
-int hgfs_readdir(hgfs_dir_t handle, unsigned int index, char *buf,
-	size_t size, struct hgfs_attr *attr);
-int hgfs_closedir(hgfs_dir_t handle);
-
-int hgfs_getattr(char *path, struct hgfs_attr *attr);
-int hgfs_setattr(char *path, struct hgfs_attr *attr);
-
-int hgfs_mkdir(char *path, int mode);
-int hgfs_unlink(char *path);
-int hgfs_rmdir(char *path);
-int hgfs_rename(char *opath, char *npath);
-
-int hgfs_queryvol(char *path, u64_t *free, u64_t *total);
-
-#endif /* _HGFS_H */

include/minix/sffs.h

@@ -0,0 +1,69 @@
+/* Part of libsffs - (c) 2012, D.C. van Moolenbroek */
+
+#ifndef _MINIX_SFFS_H
+#define _MINIX_SFFS_H
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <minix/u64.h>
+
+typedef void *sffs_file_t;		/* handle to open file */
+typedef void *sffs_dir_t;		/* handle to directory search */
+
+struct sffs_attr {
+  u32_t a_mask;				/* which fields to retrieve/set */
+  mode_t a_mode;			/* file type and permissions */
+  u64_t a_size;				/* file size */
+  struct timespec a_crtime;		/* file creation time */
+  struct timespec a_atime;		/* file access time */
+  struct timespec a_mtime;		/* file modification time */
+  struct timespec a_ctime;		/* file change time */
+};
+
+#define SFFS_ATTR_SIZE		0x01	/* get/set file size */
+#define SFFS_ATTR_CRTIME	0x02	/* get/set file creation time */
+#define SFFS_ATTR_ATIME		0x04	/* get/set file access time */
+#define SFFS_ATTR_MTIME		0x08	/* get/set file modification time */
+#define SFFS_ATTR_CTIME		0x10	/* get/set file change time */
+#define SFFS_ATTR_MODE		0x20	/* get/set file mode */
+
+struct sffs_table {
+  int (*t_open)(char *path, int flags, int mode, sffs_file_t *handle);
+  ssize_t (*t_read)(sffs_file_t handle, char *buf, size_t size, u64_t pos);
+  ssize_t (*t_write)(sffs_file_t handle, char *buf, size_t size, u64_t pos);
+  int (*t_close)(sffs_file_t handle);
+
+  size_t (*t_readbuf)(char **ptr);
+  size_t (*t_writebuf)(char **ptr);
+
+  int (*t_opendir)(char *path, sffs_dir_t *handle);
+  int (*t_readdir)(sffs_dir_t handle, unsigned int index, char *buf,
+	size_t size, struct sffs_attr *attr);
+  int (*t_closedir)(sffs_dir_t handle);
+
+  int (*t_getattr)(char *path, struct sffs_attr *attr);
+  int (*t_setattr)(char *path, struct sffs_attr *attr);
+
+  int (*t_mkdir)(char *path, int mode);
+  int (*t_unlink)(char *path);
+  int (*t_rmdir)(char *path);
+  int (*t_rename)(char *opath, char *npath);
+
+  int (*t_queryvol)(char *path, u64_t *free, u64_t *total);
+};
+
+struct sffs_params {
+  char p_prefix[PATH_MAX];	/* prefix for all paths used */
+  uid_t p_uid;			/* UID that owns all files */
+  gid_t p_gid;			/* GID that owns all files */
+  unsigned int p_file_mask;	/* AND-mask to apply to file permissions */
+  unsigned int p_dir_mask;	/* AND-mask to apply to directory perms */
+  int p_case_insens;		/* case insensitivity flag */
+};
+
+int sffs_init(char *name, const struct sffs_table *table,
+  struct sffs_params *params);
+void sffs_signal(int signo);
+void sffs_loop(void);
+
+#endif /* _MINIX_SFFS_H */

lib/Makefile

@@ -2,11 +2,11 @@
 
 SUBDIR= csu libcompat_minix libc libblockdriver libchardriver     \
 	libnetdriver libedit libm libsys libtimers libutil \
-	libl libhgfs libz libfetch libvtreefs libaudiodriver libmthread   \
+	libl libz libfetch libvtreefs libaudiodriver libmthread   \
 	libexec libdevman libusb libminlib libasyn          \
 	libddekit libminixfs libbdev libelf libminc libcrypt libterminfo \
-	libcurses libvassert libutil libpuffs librefuse libbz2 libarchive libprop \
+	libcurses libvassert libutil libpuffs librefuse libbz2 libarchive \
-	libnetsock
+	libprop libnetsock libsffs libhgfs
 
 SUBDIR+=        ../external/public-domain/xz/lib
 

lib/libhgfs/Makefile

@@ -2,6 +2,6 @@
 
 LIB=    hgfs
 SRCS=	backdoor.S attr.c channel.c dir.c error.c file.c \
-	info.c link.c misc.c path.c rpc.c time.c
+	hgfs.c info.c link.c path.c rpc.c time.c
 
 .include <bsd.lib.mk>

lib/libhgfs/attr.c

@@ -8,7 +8,7 @@
  *				attr_get				     *
  *===========================================================================*/
 void attr_get(attr)
-struct hgfs_attr *attr;
+struct sffs_attr *attr;
 {
 /* Get attribute information from the RPC buffer, storing the requested parts
  * in the given attr structure.
@@ -20,16 +20,16 @@ struct hgfs_attr *attr;
 
   size_lo = RPC_NEXT32;
   size_hi = RPC_NEXT32;
-  if (attr->a_mask & HGFS_ATTR_SIZE)
+  if (attr->a_mask & SFFS_ATTR_SIZE)
 	attr->a_size = make64(size_lo, size_hi);
 
-  time_get((attr->a_mask & HGFS_ATTR_CRTIME) ? &attr->a_crtime : NULL);
+  time_get((attr->a_mask & SFFS_ATTR_CRTIME) ? &attr->a_crtime : NULL);
-  time_get((attr->a_mask & HGFS_ATTR_ATIME) ? &attr->a_atime : NULL);
+  time_get((attr->a_mask & SFFS_ATTR_ATIME) ? &attr->a_atime : NULL);
-  time_get((attr->a_mask & HGFS_ATTR_MTIME) ? &attr->a_mtime : NULL);
+  time_get((attr->a_mask & SFFS_ATTR_MTIME) ? &attr->a_mtime : NULL);
-  time_get((attr->a_mask & HGFS_ATTR_CTIME) ? &attr->a_ctime : NULL);
+  time_get((attr->a_mask & SFFS_ATTR_CTIME) ? &attr->a_ctime : NULL);
 
   mode |= HGFS_PERM_TO_MODE(RPC_NEXT8);
-  if (attr->a_mask & HGFS_ATTR_MODE) attr->a_mode = mode;
+  if (attr->a_mask & SFFS_ATTR_MODE) attr->a_mode = mode;
 }
 
 /*===========================================================================*
@@ -37,7 +37,7 @@ struct hgfs_attr *attr;
  *===========================================================================*/
 int hgfs_getattr(path, attr)
 char *path;
-struct hgfs_attr *attr;
+struct sffs_attr *attr;
 {
 /* Get selected attributes of a file by path name.
  */
@@ -60,7 +60,7 @@ struct hgfs_attr *attr;
  *===========================================================================*/
 int hgfs_setattr(path, attr)
 char *path;
-struct hgfs_attr *attr;
+struct sffs_attr *attr;
 {
 /* Set selected attributes of a file by path name.
  */
@@ -74,14 +74,14 @@ struct hgfs_attr *attr;
    * HGFS protocol version (v2/v3).
    */
   mask = 0;
-  if (attr->a_mask & HGFS_ATTR_MODE) mask |= HGFS_ATTR_MODE;
+  if (attr->a_mask & SFFS_ATTR_MODE) mask |= HGFS_ATTR_MODE;
-  if (attr->a_mask & HGFS_ATTR_SIZE) mask |= HGFS_ATTR_SIZE;
+  if (attr->a_mask & SFFS_ATTR_SIZE) mask |= HGFS_ATTR_SIZE;
-  if (attr->a_mask & HGFS_ATTR_CRTIME) mask |= HGFS_ATTR_CRTIME;
+  if (attr->a_mask & SFFS_ATTR_CRTIME) mask |= HGFS_ATTR_CRTIME;
-  if (attr->a_mask & HGFS_ATTR_ATIME)
+  if (attr->a_mask & SFFS_ATTR_ATIME)
 	mask |= HGFS_ATTR_ATIME | HGFS_ATTR_ATIME_SET;
-  if (attr->a_mask & HGFS_ATTR_MTIME)
+  if (attr->a_mask & SFFS_ATTR_MTIME)
 	mask |= HGFS_ATTR_MTIME | HGFS_ATTR_MTIME_SET;
-  if (attr->a_mask & HGFS_ATTR_CTIME) mask |= HGFS_ATTR_CTIME;
+  if (attr->a_mask & SFFS_ATTR_CTIME) mask |= HGFS_ATTR_CTIME;
 
   RPC_NEXT8 = mask;
 

lib/libhgfs/dir.c

@@ -7,7 +7,7 @@
  *===========================================================================*/
 int hgfs_opendir(path, handle)
 char *path;
-hgfs_dir_t *handle;
+sffs_dir_t *handle;
 {
 /* Open a directory. Store a directory handle upon success.
  */
@@ -20,7 +20,7 @@ hgfs_dir_t *handle;
   if ((r = rpc_query()) != OK)
 	return r;
 
-  *handle = (hgfs_dir_t)RPC_NEXT32;
+  *handle = (sffs_dir_t)RPC_NEXT32;
 
   return OK;
 }
@@ -29,11 +29,11 @@ hgfs_dir_t *handle;
  *				hgfs_readdir				     *
  *===========================================================================*/
 int hgfs_readdir(handle, index, buf, size, attr)
-hgfs_dir_t handle;
+sffs_dir_t handle;
 unsigned int index;
 char *buf;
 size_t size;
-struct hgfs_attr *attr;
+struct sffs_attr *attr;
 {
 /* Read a directory entry from an open directory, using a zero-based index
  * number. Upon success, the resulting path name is stored in the given buffer
@@ -67,7 +67,7 @@ struct hgfs_attr *attr;
  *				hgfs_closedir				     *
  *===========================================================================*/
 int hgfs_closedir(handle)
-hgfs_dir_t handle;
+sffs_dir_t handle;
 {
 /* Close an open directory.
  */

lib/libhgfs/file.c

@@ -12,7 +12,7 @@ int hgfs_open(path, flags, mode, handle)
 char *path;			/* path name to open */
 int flags;			/* open flags to use */
 int mode;			/* mode to create (user bits only) */
-hgfs_file_t *handle;		/* place to store resulting handle */
+sffs_file_t *handle;		/* place to store resulting handle */
 {
 /* Open a file. Store a file handle upon success.
  */
@@ -42,7 +42,7 @@ hgfs_file_t *handle;		/* place to store resulting handle */
   if ((r = rpc_query()) != OK)
 	return r;
 
-  *handle = (hgfs_file_t)RPC_NEXT32;
+  *handle = (sffs_file_t)RPC_NEXT32;
 
   return OK;
 }
@@ -50,8 +50,8 @@ hgfs_file_t *handle;		/* place to store resulting handle */
 /*===========================================================================*
  *				hgfs_read				     *
  *===========================================================================*/
-int hgfs_read(handle, buf, size, off)
+ssize_t hgfs_read(handle, buf, size, off)
-hgfs_file_t handle;		/* handle to open file */
+sffs_file_t handle;		/* handle to open file */
 char *buf;			/* data buffer or NULL */
 size_t size;			/* maximum number of bytes to read */
 u64_t off;			/* file offset */
@@ -84,8 +84,8 @@ u64_t off;			/* file offset */
 /*===========================================================================*
  *				hgfs_write				     *
  *===========================================================================*/
-int hgfs_write(handle, buf, len, off)
+ssize_t hgfs_write(handle, buf, len, off)
-hgfs_file_t handle;		/* handle to open file */
+sffs_file_t handle;		/* handle to open file */
 char *buf;			/* data buffer or NULL */
 size_t len;			/* number of bytes to write */
 u64_t off;			/* file offset */
@@ -116,7 +116,7 @@ u64_t off;			/* file offset */
  *				hgfs_close				     *
  *===========================================================================*/
 int hgfs_close(handle)
-hgfs_file_t handle;		/* handle to open file */
+sffs_file_t handle;		/* handle to open file */
 {
 /* Close an open file.
  */

lib/libhgfs/hgfs.c

@@ -2,18 +2,48 @@
 
 #include "inc.h"
 
+struct sffs_table hgfs_table = {
+  .t_open	= hgfs_open,
+  .t_read	= hgfs_read,
+  .t_write	= hgfs_write,
+  .t_close	= hgfs_close,
+
+  .t_readbuf	= hgfs_readbuf,
+  .t_writebuf	= hgfs_writebuf,
+
+  .t_opendir	= hgfs_opendir,
+  .t_readdir	= hgfs_readdir,
+  .t_closedir	= hgfs_closedir,
+
+  .t_getattr	= hgfs_getattr,
+  .t_setattr	= hgfs_setattr,
+
+  .t_mkdir	= hgfs_mkdir,
+  .t_unlink	= hgfs_unlink,
+  .t_rmdir	= hgfs_rmdir,
+  .t_rename	= hgfs_rename,
+
+  .t_queryvol	= hgfs_queryvol,
+};
+
 /*===========================================================================*
  *				hgfs_init				     *
  *===========================================================================*/
-int hgfs_init()
+int hgfs_init(const struct sffs_table **tablep)
 {
 /* Initialize the library. Return OK on success, or a negative error code
  * otherwise. If EAGAIN is returned, shared folders are disabled.
  */
+  int r;
 
   time_init();
 
-  return rpc_open();
+  r = rpc_open();
+
+  if (r == OK)
+	*tablep = &hgfs_table;
+
+  return r;
 }
 
 /*===========================================================================*
@@ -26,3 +56,4 @@ void hgfs_cleanup()
 
   rpc_close();
 }
+

lib/libhgfs/inc.h

@@ -1,16 +1,7 @@
 /* Part of libhgfs - (c) 2009, D.C. van Moolenbroek */
 
-#ifndef __NBSD_LIBC
+#include <minix/drivers.h>
-#define _POSIX_SOURCE 1			/* need PATH_MAX */
+#include <minix/sffs.h>
-#endif
-#define _SYSTEM 1			/* need negative error codes */
-
-#include <minix/config.h>
-#include <minix/const.h>
-
-#include <string.h>
-#include <errno.h>
-
 #include <minix/hgfs.h>
 
 #define PREFIX(x) __libhgfs_##x

lib/libhgfs/proto.h

@@ -2,7 +2,9 @@
 
 /* attr.c */
 #define attr_get PREFIX(attr_get)
-void attr_get(struct hgfs_attr *attr);
+void attr_get(struct sffs_attr *attr);
+int hgfs_getattr(char *path, struct sffs_attr *attr);
+int hgfs_setattr(char *path, struct sffs_attr *attr);
 
 /* backdoor.s */
 #define backdoor PREFIX(backdoor)
@@ -22,10 +24,33 @@ void channel_close(struct channel *ch);
 int channel_send(struct channel *ch, char *buf, int len);
 int channel_recv(struct channel *ch, char *buf, int max);
 
+/* dir.c */
+int hgfs_opendir(char *path, sffs_dir_t *handle);
+int hgfs_readdir(sffs_dir_t handle, unsigned int index, char *buf, size_t size,
+  struct sffs_attr *attr);
+int hgfs_closedir(sffs_dir_t handle);
+
 /* error.c */
 #define error_convert PREFIX(error_convert)
 int error_convert(int err);
 
+/* file.c */
+int hgfs_open(char *path, int flags, int mode, sffs_file_t *handle);
+ssize_t hgfs_read(sffs_file_t handle, char *buf, size_t size, u64_t offset);
+ssize_t hgfs_write(sffs_file_t handle, char *buf, size_t len, u64_t offset);
+int hgfs_close(sffs_file_t handle);
+size_t hgfs_readbuf(char **ptr);
+size_t hgfs_writebuf(char **ptr);
+
+/* info.c */
+int hgfs_queryvol(char *path, u64_t *free, u64_t *total);
+
+/* link.c */
+int hgfs_mkdir(char *path, int mode);
+int hgfs_unlink(char *path);
+int hgfs_rmdir(char *path);
+int hgfs_rename(char *opath, char *npath);
+
 /* path.c */
 #define path_put PREFIX(path_put)
 #define path_get PREFIX(path_get)

lib/libsffs/Makefile

@@ -0,0 +1,9 @@
+# Makefile for libsffs
+.include <bsd.own.mk>
+
+LIB=	sffs
+
+SRCS=	dentry.c handle.c inode.c link.c lookup.c main.c misc.c mount.c \
+	name.c path.c read.c stat.c table.c util.c verify.c write.c
+
+.include <bsd.lib.mk>

lib/libsffs/const.h

@@ -1,3 +1,5 @@
+#ifndef _SFFS_CONST_H
+#define _SFFS_CONST_H
 
 /* Number of inodes. */
 /* The following number must not exceed 16. The i_num field is only a short. */
@@ -10,3 +12,5 @@
  * Also used by getdents. This is not the underlying data transfer unit size.
  */
 #define BLOCK_SIZE	4096
+
+#endif /* _SFFS_CONST_H */

lib/libsffs/dentry.c

@@ -177,7 +177,7 @@ char *name;
   unsigned int val;
   char buf[NAME_MAX+1], *p;
 
-  dprintf(("HGFS: hash_dentry for '%s'\n", name));
+  dprintf(("%s: hash_dentry for '%s'\n", sffs_name, name));
 
   normalize_name(buf, name);
 

lib/libsffs/glo.h

@@ -0,0 +1,19 @@
+#ifndef _SFFS_GLO_H
+#define _SFFS_GLO_H
+
+#ifdef _TABLE
+#undef EXTERN
+#define EXTERN
+#endif
+
+EXTERN char *sffs_name;				/* file server name */
+EXTERN const struct sffs_table *sffs_table;	/* call table */
+EXTERN struct sffs_params *sffs_params;		/* parameters */
+
+EXTERN message m_in;				/* request message */
+EXTERN message m_out;				/* reply message */
+EXTERN struct state state;			/* global state */
+
+extern int(*call_vec[]) (void);
+
+#endif /* _SFFS_GLO_H */

lib/libsffs/handle.c

@@ -31,17 +31,17 @@ struct inode *ino;
 	return r;
 
   if (IS_DIR(ino)) {
-	r = hgfs_opendir(path, &ino->i_dir);
+	r = sffs_table->t_opendir(path, &ino->i_dir);
   }
   else {
-	if (!state.read_only)
+	if (!state.s_read_only)
-		r = hgfs_open(path, O_RDWR, 0, &ino->i_file);
+		r = sffs_table->t_open(path, O_RDWR, 0, &ino->i_file);
 
 	/* Protection or mount status might prevent us from writing. With the
 	 * information that we have available, this is the best we can do..
 	 */
-	if (state.read_only || r != OK)
+	if (state.s_read_only || r != OK)
-		r = hgfs_open(path, O_RDONLY, 0, &ino->i_file);
+		r = sffs_table->t_open(path, O_RDONLY, 0, &ino->i_file);
   }
 
   if (r != OK)
@@ -67,12 +67,13 @@ struct inode *ino;
 
   /* We ignore any errors here, because we can't deal with them anyway. */
   if (IS_DIR(ino))
-	r = hgfs_closedir(ino->i_dir);
+	r = sffs_table->t_closedir(ino->i_dir);
   else
-	r = hgfs_close(ino->i_file);
+	r = sffs_table->t_close(ino->i_file);
 
   if (r != OK)
-	printf("HGFS: put_handle: handle close operation returned %d\n", r);
+	printf("%s: put_handle: handle close operation returned %d\n",
+		sffs_name, r);
 
   ino->i_flags &= ~I_HANDLE;
 }

lib/libsffs/inc.h

@@ -0,0 +1,24 @@
+#ifndef _SFFS_INC_H
+#define _SFFS_INC_H
+
+#include <minix/drivers.h>
+#include <minix/vfsif.h>
+#include <minix/optset.h>
+#include <minix/sffs.h>
+#include <sys/stat.h>
+#include <sys/queue.h>
+#include <assert.h>
+
+#if DEBUG
+#define dprintf(x) printf x
+#else
+#define dprintf(x)
+#endif
+
+#include "type.h"
+#include "const.h"
+#include "proto.h"
+#include "glo.h"
+#include "inode.h"
+
+#endif /* _SFFS_INC_H */

lib/libsffs/inode.c

@@ -34,8 +34,8 @@ struct inode *init_inode()
 
   TAILQ_INIT(&free_list);
 
-  dprintf(("HGFS: %d inodes, %u bytes each, equals %u bytes\n",
+  dprintf(("%s: %d inodes, %u bytes each, equals %u bytes\n",
-	NUM_INODES, sizeof(struct inode), sizeof(inodes)));
+	sffs_name, NUM_INODES, sizeof(struct inode), sizeof(inodes)));
 
   /* Mark all inodes except the root inode as free. */
   for (index = 1; index < NUM_INODES; index++) {
@@ -76,7 +76,7 @@ ino_t ino_nr;
   /* Inode 0 (= index -1) is not a valid inode number. */
   index = INODE_INDEX(ino_nr);
   if (index < 0) {
-	printf("HGFS: VFS passed invalid inode number!\n");
+	printf("%s: VFS passed invalid inode number!\n", sffs_name);
 
 	return NULL;
   }
@@ -87,14 +87,14 @@ ino_t ino_nr;
 
   /* Make sure the generation number matches. */
   if (INODE_GEN(ino_nr) != ino->i_gen) {
-	printf("HGFS: VFS passed outdated inode number!\n");
+	printf("%s: VFS passed outdated inode number!\n", sffs_name);
 
 	return NULL;
   }
 
   /* The VFS/FS protocol only uses referenced inodes. */
   if (ino->i_ref == 0)
-	printf("HGFS: VFS passed unused inode!\n");
+	printf("%s: VFS passed unused inode!\n", sffs_name);
 
   return ino;
 }
@@ -109,7 +109,7 @@ struct inode *ino;
  * count were zero before, remove the inode from the free list.
  */
 
-  dprintf(("HGFS: get_inode(%p) ['%s']\n", ino, ino->i_name));
+  dprintf(("%s: get_inode(%p) ['%s']\n", sffs_name, ino, ino->i_name));
 
   /* (INUSE, CACHED) -> INUSE */
 
@@ -134,7 +134,7 @@ struct inode *ino;
  * reached zero, mark the inode as cached or free.
  */
 
-  dprintf(("HGFS: put_inode(%p) ['%s']\n", ino, ino->i_name));
+  dprintf(("%s: put_inode(%p) ['%s']\n", sffs_name, ino, ino->i_name));
 
   assert(ino != NULL);
   assert(ino->i_ref > 0);
@@ -199,7 +199,7 @@ struct inode *ino;
   parent = ino->i_parent;
 
   LIST_REMOVE(ino, i_next);
-  
+
   if (parent->i_ref == 0 && !HAS_CHILDREN(parent)) {
 	if (parent->i_parent == NULL)
 		TAILQ_INSERT_HEAD(&free_list, parent, i_free);
@@ -223,7 +223,7 @@ struct inode *get_free_inode()
 
   /* If there are no inodes on the free list, we cannot satisfy the request. */
   if (TAILQ_EMPTY(&free_list)) {
-	printf("HGFS: out of inodes!\n");
+	printf("%s: out of inodes!\n", sffs_name);
 
 	return NULL;
   }

lib/libsffs/inode.h

@@ -1,5 +1,5 @@
-#ifndef _INODE_H
+#ifndef _SFFS_INODE_H
-#define _INODE_H
+#define _SFFS_INODE_H
 
 /* We cannot use inode number 0, so to be able to use bitmasks to combine
  * inode and generation numbers, we have to use one fewer than the maximum of
@@ -62,17 +62,13 @@ struct inode {
   unsigned short i_ref;			/* VFS reference count */
   unsigned short i_flags;		/* any combination of I_* flags */
   union {
-	TAILQ_ENTRY(inode) u_free;	/* free list chain entry */
+	TAILQ_ENTRY(inode) i_free;	/* free list chain entry */
-	hgfs_file_t u_file;		/* handle to open file */
+	sffs_file_t i_file;		/* handle to open file */
-	hgfs_dir_t u_dir;		/* handle to open directory */
+	sffs_dir_t i_dir;		/* handle to open directory */
-  } i_u;
+  };
   char i_name[NAME_MAX+1];		/* entry name in parent directory */
 };
 
-#define i_free		i_u.u_free
-#define i_file		i_u.u_file
-#define i_dir		i_u.u_dir
-
 #define I_DIR		0x01		/* this inode represents a directory */
 #define I_HANDLE	0x02		/* this inode has an open handle */
 
@@ -89,4 +85,4 @@ struct inode {
 
 #define MODE_TO_DIRFLAG(m)	(S_ISDIR(m) ? I_DIR : 0)
 
-#endif /* _INODE_H */
+#endif /* _SFFS_INODE_H */

lib/libsffs/link.c

@@ -26,12 +26,12 @@ int do_create()
  */
   char path[PATH_MAX], name[NAME_MAX+1];
   struct inode *parent, *ino;
-  struct hgfs_attr attr;
+  struct sffs_attr attr;
-  hgfs_file_t handle;
+  sffs_file_t handle;
   int r;
 
   /* We cannot create files on a read-only file system. */
-  if (state.read_only)
+  if (state.s_read_only)
 	return EROFS;
 
   /* Get path, name, parent inode and possibly inode for the given path. */
@@ -59,7 +59,8 @@ int do_create()
   }
 
   /* Perform the actual create call. */
-  r = hgfs_open(path, O_CREAT | O_EXCL | O_RDWR, m_in.REQ_MODE, &handle);
+  r = sffs_table->t_open(path, O_CREAT | O_EXCL | O_RDWR, m_in.REQ_MODE,
+	&handle);
 
   if (r != OK) {
 	/* Let's not try to be too clever with error codes here. If something
@@ -73,17 +74,17 @@ int do_create()
   }
 
   /* Get the created file's attributes. */
-  attr.a_mask = HGFS_ATTR_MODE | HGFS_ATTR_SIZE;
+  attr.a_mask = SFFS_ATTR_MODE | SFFS_ATTR_SIZE;
-  r = hgfs_getattr(path, &attr);
+  r = sffs_table->t_getattr(path, &attr);
 
   /* If this fails, or returns a directory, we have a problem. This
    * scenario is in fact possible with race conditions.
    * Simulate a close and return a somewhat appropriate error.
    */
   if (r != OK || S_ISDIR(attr.a_mode)) {
-	printf("HGFS: lost file after creation!\n");
+	printf("%s: lost file after creation!\n", sffs_name);
 
-	hgfs_close(handle);
+	sffs_table->t_close(handle);
 
 	if (ino != NULL) {
 		del_dentry(ino);
@@ -94,7 +95,7 @@ int do_create()
 	return (r == OK) ? EEXIST : r;
   }
 
-  /* We do assume that the HGFS open(O_CREAT|O_EXCL) did its job.
+  /* We do assume that the underlying open(O_CREAT|O_EXCL) call did its job.
    * If we previousy found an inode, get rid of it now. It's old.
    */
   if (ino != NULL) {
@@ -118,8 +119,8 @@ int do_create()
   m_out.RES_MODE = get_mode(ino, attr.a_mode);
   m_out.RES_FILE_SIZE_HI = ex64hi(attr.a_size);
   m_out.RES_FILE_SIZE_LO = ex64lo(attr.a_size);
-  m_out.RES_UID = opt.uid;
+  m_out.RES_UID = sffs_params->p_uid;
-  m_out.RES_GID = opt.gid;
+  m_out.RES_GID = sffs_params->p_gid;
   m_out.RES_DEV = NO_DEV;
 
   return OK;
@@ -137,7 +138,7 @@ int do_mkdir()
   int r;
 
   /* We cannot create directories on a read-only file system. */
-  if (state.read_only)
+  if (state.s_read_only)
 	return EROFS;
 
   /* Get the path string and possibly an inode for the given path. */
@@ -153,7 +154,7 @@ int do_mkdir()
 	return r;
 
   /* Perform the actual mkdir call. */
-  r = hgfs_mkdir(path, m_in.REQ_MODE);
+  r = sffs_table->t_mkdir(path, m_in.REQ_MODE);
 
   if (r != OK) {
 	if (ino != NULL)
@@ -181,50 +182,50 @@ static int force_remove(path, dir)
 char *path;				/* path to file or directory */
 int dir;				/* TRUE iff directory */
 {
-/* Remove a file or directory. Wrapper around hgfs_unlink and hgfs_rmdir that
+/* Remove a file or directory. Wrapper around unlink and rmdir that makes the
- * makes the target temporarily writable if the operation fails with an access
+ * target temporarily writable if the operation fails with an access denied
- * denied error. On Windows hosts, read-only files or directories cannot be
+ * error. On Windows hosts, read-only files or directories cannot be removed
- * removed (even though they can be renamed). In general, the HGFS server
+ * (even though they can be renamed). In general, the SFFS library follows the
- * follows the behavior of the host file system, but this case just confuses
+ * behavior of the host file system, but this case just confuses the hell out
- * the hell out of the MINIX userland..
+ * of the MINIX userland..
  */
-  struct hgfs_attr attr;
+  struct sffs_attr attr;
   int r, r2;
 
   /* First try to remove the target. */
   if (dir)
-	r = hgfs_rmdir(path);
+	r = sffs_table->t_rmdir(path);
   else
-	r = hgfs_unlink(path);
+	r = sffs_table->t_unlink(path);
 
   if (r != EACCES) return r;
 
   /* If this fails with an access error, retrieve the target's mode. */
-  attr.a_mask = HGFS_ATTR_MODE;
+  attr.a_mask = SFFS_ATTR_MODE;
 
-  r2 = hgfs_getattr(path, &attr);
+  r2 = sffs_table->t_getattr(path, &attr);
 
   if (r2 != OK || (attr.a_mode & S_IWUSR)) return r;
 
   /* If the target is not writable, temporarily set it to writable. */
   attr.a_mode |= S_IWUSR;
 
-  r2 = hgfs_setattr(path, &attr);
+  r2 = sffs_table->t_setattr(path, &attr);
 
   if (r2 != OK) return r;
 
   /* Then try the original operation again. */
   if (dir)
-	r = hgfs_rmdir(path);
+	r = sffs_table->t_rmdir(path);
   else
-	r = hgfs_unlink(path);
+	r = sffs_table->t_unlink(path);
 
   if (r == OK) return r;
 
   /* If the operation still fails, unset the writable bit again. */
   attr.a_mode &= ~S_IWUSR;
 
-  hgfs_setattr(path, &attr);
+  sffs_table->t_setattr(path, &attr);
 
   return r;
 }
@@ -241,7 +242,7 @@ int do_unlink()
   int r;
 
   /* We cannot delete files on a read-only file system. */
-  if (state.read_only)
+  if (state.s_read_only)
 	return EROFS;
 
   /* Get the path string and possibly preexisting inode for the given path. */
@@ -288,7 +289,7 @@ int do_rmdir()
   int r;
 
   /* We cannot remove directories on a read-only file system. */
-  if (state.read_only)
+  if (state.s_read_only)
 	return EROFS;
 
   /* Get the path string and possibly preexisting inode for the given path. */
@@ -338,7 +339,7 @@ int do_rename()
   int r;
 
   /* We cannot do rename on a read-only file system. */
-  if (state.read_only)
+  if (state.s_read_only)
 	return EROFS;
 
   /* Get path strings, names, directory inodes and possibly preexisting inodes
@@ -368,7 +369,7 @@ int do_rename()
   }
 
   /* Perform the actual rename call. */
-  r = hgfs_rename(old_path, new_path);
+  r = sffs_table->t_rename(old_path, new_path);
 
   /* If we failed, or if we have nothing further to do: both inodes are
    * NULL, or they both refer to the same file.

lib/libsffs/lookup.c

@@ -10,13 +10,13 @@
 #include "inc.h"
 
 static int get_mask(vfs_ucred_t *ucred);
-static int access_as_dir(struct inode *ino, struct hgfs_attr *attr, int
+static int access_as_dir(struct inode *ino, struct sffs_attr *attr, int
 	uid, int mask);
 static int next_name(char **ptr, char **start, char name[NAME_MAX+1]);
 static int go_up(char path[PATH_MAX], struct inode *ino, struct inode
-	**res_ino, struct hgfs_attr *attr);
+	**res_ino, struct sffs_attr *attr);
 static int go_down(char path[PATH_MAX], struct inode *ino, char *name,
-	struct inode **res_ino, struct hgfs_attr *attr);
+	struct inode **res_ino, struct sffs_attr *attr);
 
 /*===========================================================================*
  *				get_mask				     *
@@ -29,12 +29,12 @@ vfs_ucred_t *ucred;		/* credentials of the caller */
    */
   int i;
 
-  if (ucred->vu_uid == opt.uid) return S_IXUSR;
+  if (ucred->vu_uid == sffs_params->p_uid) return S_IXUSR;
 
-  if (ucred->vu_gid == opt.gid) return S_IXGRP;
+  if (ucred->vu_gid == sffs_params->p_gid) return S_IXGRP;
 
   for (i = 0; i < ucred->vu_ngroups; i++)
-	if (ucred->vu_sgroups[i] == opt.gid) return S_IXGRP;
+	if (ucred->vu_sgroups[i] == sffs_params->p_gid) return S_IXGRP;
 
   return S_IXOTH;
 }
@@ -44,7 +44,7 @@ vfs_ucred_t *ucred;		/* credentials of the caller */
  *===========================================================================*/
 static int access_as_dir(ino, attr, uid, mask)
 struct inode *ino;		/* the inode to test */
-struct hgfs_attr *attr;		/* attributes of the inode */
+struct sffs_attr *attr;		/* attributes of the inode */
 int uid;			/* UID of the caller */
 int mask;			/* search access mask of the caller */
 {
@@ -53,7 +53,7 @@ int mask;			/* search access mask of the caller */
  */
   mode_t mode;
 
-  assert(attr->a_mask & HGFS_ATTR_MODE);
+  assert(attr->a_mask & SFFS_ATTR_MODE);
 
   /* The inode must be a directory to begin with. */
   if (!IS_DIR(ino)) return ENOTDIR;
@@ -106,7 +106,7 @@ static int go_up(path, ino, res_ino, attr)
 char path[PATH_MAX];		/* path to take the last part from */
 struct inode *ino;		/* inode of the current directory */
 struct inode **res_ino;		/* place to store resulting inode */
-struct hgfs_attr *attr;		/* place to store inode attributes */
+struct sffs_attr *attr;		/* place to store inode attributes */
 {
 /* Given an inode, progress into the parent directory.
  */
@@ -136,7 +136,7 @@ char path[PATH_MAX];		/* path to add the name to */
 struct inode *parent;		/* inode of the current directory */
 char *name;			/* name of the directory entry */
 struct inode **res_ino;		/* place to store resulting inode */
-struct hgfs_attr *attr;		/* place to store inode attributes */
+struct sffs_attr *attr;		/* place to store inode attributes */
 {
 /* Given a directory inode and a name, progress into a directory entry.
  */
@@ -146,18 +146,18 @@ struct hgfs_attr *attr;		/* place to store inode attributes */
   if ((r = push_path(path, name)) != OK)
 	return r;
 
-  dprintf(("HGFS: go_down: name '%s', path now '%s'\n", name, path));
+  dprintf(("%s: go_down: name '%s', path now '%s'\n", sffs_name, name, path));
 
   ino = lookup_dentry(parent, name);
 
-  dprintf(("HGFS: lookup_dentry('%s') returned %p\n", name, ino));
+  dprintf(("%s: lookup_dentry('%s') returned %p\n", sffs_name, name, ino));
 
   if (ino != NULL)
 	r = verify_path(path, ino, attr, &stale);
   else
-	r = hgfs_getattr(path, attr);
+	r = sffs_table->t_getattr(path, attr);
 
-  dprintf(("HGFS: path query returned %d\n", r));
+  dprintf(("%s: path query returned %d\n", sffs_name, r));
 
   if (r != OK) {
 	if (ino != NULL) {
@@ -170,13 +170,13 @@ struct hgfs_attr *attr;		/* place to store inode attributes */
 		return r;
   }
 
-  dprintf(("HGFS: name '%s'\n", name));
+  dprintf(("%s: name '%s'\n", sffs_name, name));
 
   if (ino == NULL) {
 	if ((ino = get_free_inode()) == NULL)
 		return ENFILE;
 
-	dprintf(("HGFS: inode %p ref %d\n", ino, ino->i_ref));
+	dprintf(("%s: inode %p ref %d\n", sffs_name, ino, ino->i_ref));
 
 	ino->i_flags = MODE_TO_DIRFLAG(attr->a_mode);
 
@@ -197,7 +197,7 @@ int do_lookup()
   ino_t dir_ino_nr, root_ino_nr;
   struct inode *cur_ino, *root_ino;
   struct inode *next_ino = NULL;
-  struct hgfs_attr attr;
+  struct sffs_attr attr;
   char buf[PATH_MAX], path[PATH_MAX];
   char name[NAME_MAX+1];
   char *ptr, *last;
@@ -221,7 +221,7 @@ int do_lookup()
 	return r;
 
   if (buf[len-1] != 0) {
-	printf("HGFS: VFS did not zero-terminate path!\n");
+	printf("%s: VFS did not zero-terminate path!\n", sffs_name);
 
 	return EINVAL;
   }
@@ -231,7 +231,7 @@ int do_lookup()
    */
   if (m_in.REQ_FLAGS & PATH_GET_UCRED) {
 	if (m_in.REQ_UCRED_SIZE != sizeof(ucred)) {
-		printf("HGFS: bad credential structure size\n");
+		printf("%s: bad credential structure size\n", sffs_name);
 
 		return EINVAL;
 	}
@@ -251,12 +251,12 @@ int do_lookup()
   mask = get_mask(&ucred);
 
   /* Start the actual lookup. */
-  dprintf(("HGFS: lookup: got query '%s'\n", buf));
+  dprintf(("%s: lookup: got query '%s'\n", sffs_name, buf));
 
   if ((cur_ino = find_inode(dir_ino_nr)) == NULL)
 	return EINVAL;
 
-  attr.a_mask = HGFS_ATTR_MODE | HGFS_ATTR_SIZE;
+  attr.a_mask = SFFS_ATTR_MODE | SFFS_ATTR_SIZE;
 
   if ((r = verify_inode(cur_ino, path, &attr)) != OK)
 	return r;
@@ -279,7 +279,7 @@ int do_lookup()
 	if ((r = next_name(&ptr, &last, name)) != OK)
 		break;
 
-	dprintf(("HGFS: lookup: next name '%s'\n", name));
+	dprintf(("%s: lookup: next name '%s'\n", sffs_name, name));
 
 	if (!strcmp(name, ".") ||
 			(cur_ino == root_ino && !strcmp(name, "..")))
@@ -304,7 +304,7 @@ int do_lookup()
 	cur_ino = next_ino;
   }
 
-  dprintf(("HGFS: lookup: result %d\n", r));
+  dprintf(("%s: lookup: result %d\n", sffs_name, r));
 
   if (r != OK) {
 	put_inode(cur_ino);
@@ -324,8 +324,8 @@ int do_lookup()
   m_out.RES_MODE = get_mode(cur_ino, attr.a_mode);
   m_out.RES_FILE_SIZE_HI = ex64hi(attr.a_size);
   m_out.RES_FILE_SIZE_LO = ex64lo(attr.a_size);
-  m_out.RES_UID = opt.uid;
+  m_out.RES_UID = sffs_params->p_uid;
-  m_out.RES_GID = opt.gid;
+  m_out.RES_GID = sffs_params->p_gid;
   m_out.RES_DEV = NO_DEV;
 
   return OK;

lib/libsffs/main.c

@@ -0,0 +1,154 @@
+/* This file contains the SFFS initialization code and message loop.
+ *
+ * The entry points into this file are:
+ *   sffs_init		initialization
+ *   sffs_signal	signal handler
+ *   sffs_loop		main message loop
+ *
+ * Created:
+ *   April 2009 (D.C. van Moolenbroek)
+ */
+
+#include "inc.h"
+
+/*===========================================================================*
+ *				sffs_init				     *
+ *===========================================================================*/
+int sffs_init(char *name, const struct sffs_table *table,
+  struct sffs_params *params)
+{
+/* Initialize this file server. Called at startup time.
+ */
+  int i;
+
+  /* Make sure that the given path prefix doesn't end with a slash. */
+  i = strlen(params->p_prefix);
+  while (i > 0 && params->p_prefix[i - 1] == '/') i--;
+  params->p_prefix[i] = 0;
+
+  state.s_mounted = FALSE;
+  state.s_signaled = FALSE;
+
+  sffs_name = name;
+  sffs_table = table;
+  sffs_params = params;
+
+  return OK;
+}
+
+/*===========================================================================*
+ *				sffs_signal				     *
+ *===========================================================================*/
+void sffs_signal(int signo)
+{
+
+  /* Only check for termination signal, ignore anything else. */
+  if (signo != SIGTERM) return;
+
+  /* We can now terminate if we have also been unmounted. */
+  state.s_signaled = TRUE;
+
+  if (state.s_mounted) {
+	dprintf(("%s: got SIGTERM, still mounted\n", sffs_name));
+  } else {
+	dprintf(("%s: got SIGTERM, shutting down\n", sffs_name));
+
+	/* Break out of the main loop, giving the main program the chance to
+	 * perform further cleanup. This causes sef_receive() to return with
+	 * an EINTR error code.
+	 */
+	sef_cancel();
+  }
+}
+
+/*===========================================================================*
+ *				get_work				     *
+ *===========================================================================*/
+static int get_work(who_e)
+endpoint_t *who_e;
+{
+/* Receive a request message from VFS. Return TRUE if a new message is ready
+ * to be processed, or FALSE if sef_stop() was called from the signal handler.
+ */
+  int r;
+
+  if ((r = sef_receive(ANY, &m_in)) != OK) {
+	if (r != EINTR)
+		panic("receive failed: %d", r);
+
+	return FALSE;
+  }
+
+  *who_e = m_in.m_source;
+  return TRUE;
+}
+
+/*===========================================================================*
+ *				send_reply				     *
+ *===========================================================================*/
+static void send_reply(err, transid)
+int err;				/* resulting error code */
+int transid;
+{
+/* Send a reply message to the requesting party, with the given error code.
+ */
+  int r;
+
+  m_out.m_type = err;
+  if (IS_VFS_FS_TRANSID(transid)) {
+	/* If a transaction ID was set, reset it */
+	m_out.m_type = TRNS_ADD_ID(m_out.m_type, transid);
+  }
+  if ((r = send(m_in.m_source, &m_out)) != OK)
+	printf("%s: send failed (%d)\n", sffs_name, r);
+}
+
+/*===========================================================================*
+ *				sffs_loop				     *
+ *===========================================================================*/
+void sffs_loop(void)
+{
+/* The main function of this file server. After initializing, loop, receiving
+ * one request from VFS at a time, processing it, and sending a reply back to
+ * VFS. Termination occurs when we both have been unmounted and have received
+ * a termination signal.
+ */
+  endpoint_t who_e;
+  int call_nr, err, transid;
+
+  while (state.s_mounted || !state.s_signaled) {
+	if (!get_work(&who_e))
+		continue;	/* Recheck running conditions */
+
+	transid = TRNS_GET_ID(m_in.m_type);
+	m_in.m_type = TRNS_DEL_ID(m_in.m_type);
+	if (m_in.m_type == 0) {
+		assert(!IS_VFS_FS_TRANSID(transid));
+		m_in.m_type = transid;		/* Backwards compat. */
+		transid = 0;
+	} else
+		assert(IS_VFS_FS_TRANSID(transid));
+
+	call_nr = m_in.m_type;
+	if (who_e != VFS_PROC_NR) {
+		continue;
+	}
+
+	if (state.s_mounted || call_nr == REQ_READSUPER) {
+		call_nr -= VFS_BASE;
+
+		dprintf(("%s: call %d\n", sffs_name, call_nr));
+
+		if (call_nr >= 0 && call_nr < NREQS) {
+			err = (*call_vec[call_nr])();
+		} else {
+			err = ENOSYS;
+		}
+
+		dprintf(("%s: call %d result %d\n", sffs_name, call_nr, err));
+	}
+	else err = EINVAL;
+
+	send_reply(err, transid);
+  }
+}

lib/libsffs/misc.c

@@ -52,7 +52,7 @@ int do_statvfs()
   if ((r = verify_inode(ino, path, NULL)) != OK)
 	return r;
 
-  if ((r = hgfs_queryvol(path, &free, &total)) != OK)
+  if ((r = sffs_table->t_queryvol(path, &free, &total)) != OK)
 	return r;
 
   memset(&statvfs, 0, sizeof(statvfs));
@@ -68,8 +68,8 @@ int do_statvfs()
   statvfs.f_files = 0;
   statvfs.f_ffree = 0;
   statvfs.f_favail = 0;
-  statvfs.f_fsid = state.dev;
+  statvfs.f_fsid = state.s_dev;
-  statvfs.f_flag = state.read_only ? ST_RDONLY : 0;
+  statvfs.f_flag = state.s_read_only ? ST_RDONLY : 0;
   statvfs.f_flag |= ST_NOTRUNC;
   statvfs.f_namemax = NAME_MAX;
 

lib/libsffs/mount.c

@@ -19,35 +19,38 @@ int do_readsuper()
  */
   char path[PATH_MAX];
   struct inode *ino;
-  struct hgfs_attr attr;
+  struct sffs_attr attr;
   int r;
 
-  dprintf(("HGFS: readsuper (dev %x, flags %x)\n",
+  dprintf(("%s: readsuper (dev %x, flags %x)\n",
-	(dev_t) m_in.REQ_DEV, m_in.REQ_FLAGS));
+	sffs_name, (dev_t) m_in.REQ_DEV, m_in.REQ_FLAGS));
 
   if (m_in.REQ_FLAGS & REQ_ISROOT) {
-	printf("HGFS: attempt to mount as root device\n");
+	printf("%s: attempt to mount as root device\n", sffs_name);
 
 	return EINVAL;
   }
 
-  state.read_only = !!(m_in.REQ_FLAGS & REQ_RDONLY);
+  state.s_read_only = !!(m_in.REQ_FLAGS & REQ_RDONLY);
-  state.dev = m_in.REQ_DEV;
+  state.s_dev = m_in.REQ_DEV;
 
   init_dentry();
   ino = init_inode();
 
-  attr.a_mask = HGFS_ATTR_MODE | HGFS_ATTR_SIZE;
+  attr.a_mask = SFFS_ATTR_MODE | SFFS_ATTR_SIZE;
 
   /* We cannot continue if we fail to get the properties of the root inode at
    * all, because we cannot guess the details of the root node to return to
    * VFS. Print a (hopefully) helpful error message, and abort the mount.
    */
   if ((r = verify_inode(ino, path, &attr)) != OK) {
-	if (opt.prefix[0] && (r == ENOENT || r == EACCES))
+	if (r == EAGAIN)
-		printf("HGFS: unable to access the given prefix directory\n");
+		printf("%s: shared folders disabled\n", sffs_name);
+	else if (sffs_params->p_prefix[0] && (r == ENOENT || r == EACCES))
+		printf("%s: unable to access the given prefix directory\n",
+			sffs_name);
 	else
-		printf("HGFS: unable to access shared folders\n");
+		printf("%s: unable to access shared folders\n", sffs_name);
 
 	return r;
   }
@@ -56,13 +59,12 @@ int do_readsuper()
   m_out.RES_MODE = get_mode(ino, attr.a_mode);
   m_out.RES_FILE_SIZE_HI = ex64hi(attr.a_size);
   m_out.RES_FILE_SIZE_LO = ex64lo(attr.a_size);
-  m_out.RES_UID = opt.uid;
+  m_out.RES_UID = sffs_params->p_uid;
-  m_out.RES_GID = opt.gid;
+  m_out.RES_GID = sffs_params->p_gid;
   m_out.RES_DEV = NO_DEV;
-
   m_out.RES_CONREQS = 1;	/* We can handle only 1 request at a time */
 
-  state.mounted = TRUE;
+  state.s_mounted = TRUE;
 
   return OK;
 }
@@ -76,7 +78,7 @@ int do_unmount()
  */
   struct inode *ino;
 
-  dprintf(("HGFS: do_unmount\n"));
+  dprintf(("%s: do_unmount\n", sffs_name));
 
   /* Decrease the reference count of the root inode. */
   if ((ino = find_inode(ROOT_INODE_NR)) == NULL)
@@ -86,9 +88,9 @@ int do_unmount()
 
   /* There should not be any referenced inodes anymore now. */
   if (have_used_inode())
-	printf("HGFS: in-use inodes left at unmount time!\n");
+	printf("%s: in-use inodes left at unmount time!\n", sffs_name);
 
-  state.mounted = FALSE;
+  state.s_mounted = FALSE;
 
   return OK;
 }

lib/libsffs/name.c

@@ -28,7 +28,7 @@ char *src;
 
   assert(size <= NAME_MAX+1);
 
-  if (opt.case_insens) {
+  if (sffs_params->p_case_insens) {
 	for (i = 0; i < size; i++)
 		*dst++ = tolower(*src++);
   }
@@ -47,7 +47,7 @@ char *name2;
  */
   int r;
 
-  if (opt.case_insens)
+  if (sffs_params->p_case_insens)
 	r = strcasecmp(name1, name2);
   else
 	r = strcmp(name1, name2);

lib/libsffs/path.c

@@ -26,10 +26,11 @@ struct inode *ino;
   p = &buf[sizeof(buf) - 1];
   p[0] = 0;
 
-  dprintf(("HGFS: make_path: constructing path for inode %d\n", ino->i_num));
+  dprintf(("%s: make_path: constructing path for inode %d\n",
+	sffs_name, ino->i_num));
 
   /* Get the length of the prefix, skipping any leading slashes. */
-  for (prefix = opt.prefix; prefix[0] == '/'; prefix++);
+  for (prefix = sffs_params->p_prefix; prefix[0] == '/'; prefix++);
   plen = strlen(prefix);
 
   /* Construct the path right-to-left in a temporary buffer first. */
@@ -60,7 +61,7 @@ struct inode *ino;
   strcpy(path, prefix);
   strcpy(&path[plen], p);
 
-  dprintf(("HGFS: make_path: resulting path is '%s'\n", path));
+  dprintf(("%s: make_path: resulting path is '%s'\n", sffs_name, path));
 
   return OK;
 }

lib/libsffs/proto.h

@@ -1,3 +1,5 @@
+#ifndef _SFFS_PROTO_H
+#define _SFFS_PROTO_H
 
 /* dentry.c */
 void init_dentry(void);
@@ -67,13 +69,15 @@ int do_noop(void);
 int no_sys(void);
 
 /* verify.c */
-int verify_path(char *path, struct inode *ino, struct hgfs_attr *attr,
+int verify_path(char *path, struct inode *ino, struct sffs_attr *attr,
 	int *stale);
-int verify_inode(struct inode *ino, char path[PATH_MAX], struct
+int verify_inode(struct inode *ino, char path[PATH_MAX],
-	hgfs_attr *attr);
+	struct sffs_attr *attr);
-int verify_dentry(struct inode *parent, char name[NAME_MAX+1], char
+int verify_dentry(struct inode *parent, char name[NAME_MAX+1],
-	path[PATH_MAX], struct inode **res_ino);
+	char path[PATH_MAX], struct inode **res_ino);
 
 /* write.c */
 int do_write(void);
 int do_ftrunc(void);
+
+#endif /* _SFFS_PROTO_H */

lib/libsffs/read.c

@@ -41,14 +41,14 @@ int do_read()
 
   assert(count > 0);
 
-  /* Use the buffer from libhgfs to eliminate extra copying. */
+  /* Use the buffer from below to eliminate extra copying. */
-  size = hgfs_readbuf(&ptr);
+  size = sffs_table->t_readbuf(&ptr);
   off = 0;
 
   while (count > 0) {
 	chunk = MIN(count, size);
 
-	if ((r = hgfs_read(ino->i_file, ptr, chunk, pos)) <= 0)
+	if ((r = sffs_table->t_read(ino->i_file, ptr, chunk, pos)) <= 0)
 		break;
 
 	chunk = r;
@@ -84,14 +84,14 @@ int do_getdents()
   char name[NAME_MAX+1];
   struct inode *ino, *child;
   struct dirent *dent;
-  struct hgfs_attr attr;
+  struct sffs_attr attr;
   size_t len, off, user_off, user_left;
   off_t pos;
   int r;
   /* must be at least sizeof(struct dirent) + NAME_MAX */
   static char buf[BLOCK_SIZE];
 
-  attr.a_mask = HGFS_ATTR_MODE;
+  attr.a_mask = SFFS_ATTR_MODE;
 
   if ((ino = find_inode(m_in.REQ_INODE_NR)) == NULL)
 	return EINVAL;
@@ -141,8 +141,8 @@ int do_getdents()
 	}
 	else {
 		/* Any other entry, not being "." or "..". */
-		r = hgfs_readdir(ino->i_dir, pos - 2, name, sizeof(name),
+		r = sffs_table->t_readdir(ino->i_dir, pos - 2, name,
-			&attr);
+			sizeof(name), &attr);
 
 		if (r != OK) {
 			/* No more entries? Then close the handle and stop. */

lib/libsffs/stat.c

@@ -26,11 +26,11 @@ int mode;
   mode = mode | (mode >> 3) | (mode >> 6);
 
   if (IS_DIR(ino))
-	mode = S_IFDIR | (mode & opt.dir_mask);
+	mode = S_IFDIR | (mode & sffs_params->p_dir_mask);
   else
-	mode = S_IFREG | (mode & opt.file_mask);
+	mode = S_IFREG | (mode & sffs_params->p_file_mask);
 
-  if (state.read_only)
+  if (state.s_read_only)
 	mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
 
   return mode;
@@ -44,7 +44,7 @@ int do_stat()
 /* Retrieve inode status.
  */
   struct inode *ino;
-  struct hgfs_attr attr;
+  struct sffs_attr attr;
   struct stat stat;
   char path[PATH_MAX];
   ino_t ino_nr;
@@ -56,19 +56,19 @@ int do_stat()
   if ((ino = find_inode(ino_nr)) == NULL)
 	return EINVAL;
 
-  attr.a_mask = HGFS_ATTR_MODE | HGFS_ATTR_SIZE | HGFS_ATTR_CRTIME |
+  attr.a_mask = SFFS_ATTR_MODE | SFFS_ATTR_SIZE | SFFS_ATTR_CRTIME |
-		HGFS_ATTR_ATIME | HGFS_ATTR_MTIME | HGFS_ATTR_CTIME;
+		SFFS_ATTR_ATIME | SFFS_ATTR_MTIME | SFFS_ATTR_CTIME;
 
   if ((r = verify_inode(ino, path, &attr)) != OK)
 	return r;
 
   memset(&stat, 0, sizeof(struct stat));
 
-  stat.st_dev = state.dev;
+  stat.st_dev = state.s_dev;
   stat.st_ino = ino_nr;
   stat.st_mode = get_mode(ino, attr.a_mode);
-  stat.st_uid = opt.uid;
+  stat.st_uid = sffs_params->p_uid;
-  stat.st_gid = opt.gid;
+  stat.st_gid = sffs_params->p_gid;
   stat.st_rdev = NO_DEV;
   if (cmp64u(attr.a_size, LONG_MAX) > 0)
 	stat.st_size = LONG_MAX;
@@ -109,10 +109,10 @@ int do_chmod()
  */
   struct inode *ino;
   char path[PATH_MAX];
-  struct hgfs_attr attr;
+  struct sffs_attr attr;
   int r;
 
-  if (state.read_only)
+  if (state.s_read_only)
 	return EROFS;
 
   if ((ino = find_inode(m_in.REQ_INODE_NR)) == NULL)
@@ -122,10 +122,10 @@ int do_chmod()
 	return r;
 
   /* Set the new file mode. */
-  attr.a_mask = HGFS_ATTR_MODE;
+  attr.a_mask = SFFS_ATTR_MODE;
   attr.a_mode = m_in.REQ_MODE; /* no need to convert in this direction */
 
-  if ((r = hgfs_setattr(path, &attr)) != OK)
+  if ((r = sffs_table->t_setattr(path, &attr)) != OK)
 	return r;
 
   /* We have no idea what really happened. Query for the mode again. */
@@ -146,10 +146,10 @@ int do_utime()
  */
   struct inode *ino;
   char path[PATH_MAX];
-  struct hgfs_attr attr;
+  struct sffs_attr attr;
   int r;
 
-  if (state.read_only)
+  if (state.s_read_only)
 	return EROFS;
 
   if ((ino = find_inode(m_in.REQ_INODE_NR)) == NULL)
@@ -158,11 +158,11 @@ int do_utime()
   if ((r = verify_inode(ino, path, NULL)) != OK)
 	return r;
 
-  attr.a_mask = HGFS_ATTR_ATIME | HGFS_ATTR_MTIME;
+  attr.a_mask = SFFS_ATTR_ATIME | SFFS_ATTR_MTIME;
   attr.a_atime.tv_sec = m_in.REQ_ACTIME;
   attr.a_atime.tv_nsec = 0;
   attr.a_mtime.tv_sec = m_in.REQ_MODTIME;
   attr.a_mtime.tv_nsec = 0;
 
-  return hgfs_setattr(path, &attr);
+  return sffs_table->t_setattr(path, &attr);
 }

lib/libsffs/type.h

@@ -0,0 +1,13 @@
+#ifndef _SFFS_TYPE_H
+#define _SFFS_TYPE_H
+
+/* Structure with global file system state. */
+struct state {
+  int s_mounted;		/* is the file system mounted? */
+  int s_signaled;		/* have we received a SIGTERM? */
+  int s_read_only;		/* is the file system mounted read-only? note,
+				 * has no relation to the shared folder mode */
+  dev_t s_dev;			/* device the file system is mounted on */
+};
+
+#endif /* _SFFS_TYPE_H */

lib/libsffs/util.c

@@ -32,7 +32,7 @@ char name[NAME_MAX+1];		/* buffer in which store the result */
   if (r != OK) return r;
 
   if (name[len-1] != 0) {
-	printf("HGFS: VFS did not zero-terminate path component!\n");
+	printf("%s: VFS did not zero-terminate path component!\n", sffs_name);
 
 	return EINVAL;
   }

lib/libsffs/verify.c

@@ -17,7 +17,7 @@
 int verify_path(path, ino, attr, stale)
 char path[PATH_MAX];
 struct inode *ino;
-struct hgfs_attr *attr;
+struct sffs_attr *attr;
 int *stale;
 {
 /* Given a path, and the inode associated with that path, verify if the inode
@@ -32,11 +32,12 @@ int *stale;
  */
   int r;
 
-  attr->a_mask |= HGFS_ATTR_MODE;
+  attr->a_mask |= SFFS_ATTR_MODE;
 
-  r = hgfs_getattr(path, attr);
+  r = sffs_table->t_getattr(path, attr);
 
-  dprintf(("HGFS: verify_path: getattr('%s') returned %d\n", path, r));
+  dprintf(("%s: verify_path: getattr('%s') returned %d\n",
+	sffs_name, path, r));
 
   if (r != OK) {
 	/* If we are told that the path does not exist, delete the inode */
@@ -63,14 +64,14 @@ int *stale;
 int verify_inode(ino, path, attr)
 struct inode *ino;		/* inode to verify */
 char path[PATH_MAX];		/* buffer in which to store the path */
-struct hgfs_attr *attr;		/* buffer for attributes, or NULL */
+struct sffs_attr *attr;		/* buffer for attributes, or NULL */
 {
 /* Given an inode, construct a path identifying the inode, and check whether
  * that path is still valid for that inode (as far as we can tell). As a side
  * effect, store attributes in the given attribute structure if not NULL (its
  * a_mask member must then be set).
  */
-  struct hgfs_attr attr2;
+  struct sffs_attr attr2;
   int r;
 
   if ((r = make_path(path, ino)) != OK) return r;
@@ -104,13 +105,13 @@ struct inode **res_ino;		/* pointer for addressed inode (or NULL) */
   if ((r = verify_inode(parent, path, NULL)) != OK)
 	return r;
 
-  dprintf(("HGFS: verify_dentry: given path is '%s', name '%s'\n", path,
+  dprintf(("%s: verify_dentry: given path is '%s', name '%s'\n",
-	name));
+	sffs_name, path, name));
 
   if ((r = push_path(path, name)) != OK)
 	return r;
 
-  dprintf(("HGFS: verify_dentry: path now '%s'\n", path));
+  dprintf(("%s: verify_dentry: path now '%s'\n", sffs_name, path));
 
   *res_ino = lookup_dentry(parent, name);
 

lib/libsffs/write.c

@@ -41,8 +41,8 @@ cp_grant_id_t *grantp;
 
   assert(count > 0);
 
-  /* Use the buffer from libhgfs to eliminate extra copying. */
+  /* Use the buffer from below to eliminate extra copying. */
-  size = hgfs_writebuf(&ptr);
+  size = sffs_table->t_writebuf(&ptr);
   off = 0;
 
   while (count > 0) {
@@ -59,7 +59,7 @@ cp_grant_id_t *grantp;
 		memset(ptr, 0, chunk);
 	}
 
-	if ((r = hgfs_write(ino->i_file, ptr, chunk, pos)) <= 0)
+	if ((r = sffs_table->t_write(ino->i_file, ptr, chunk, pos)) <= 0)
 		break;
 
 	count -= r;
@@ -89,7 +89,7 @@ int do_write()
   cp_grant_id_t grant;
   int r;
 
-  if (state.read_only)
+  if (state.s_read_only)
 	return EROFS;
 
   if ((ino = find_inode(m_in.REQ_INODE_NR)) == NULL)
@@ -122,12 +122,12 @@ int do_ftrunc()
  */
   char path[PATH_MAX];
   struct inode *ino;
-  struct hgfs_attr attr;
+  struct sffs_attr attr;
   u64_t start, end, delta;
   size_t count;
   int r;
 
-  if (state.read_only)
+  if (state.s_read_only)
 	return EROFS;
 
   if ((ino = find_inode(m_in.REQ_INODE_NR)) == NULL)
@@ -143,10 +143,10 @@ int do_ftrunc()
 	if ((r = verify_inode(ino, path, NULL)) != OK)
 		return r;
 
-	attr.a_mask = HGFS_ATTR_SIZE;
+	attr.a_mask = SFFS_ATTR_SIZE;
 	attr.a_size = start;
 
-	r = hgfs_setattr(path, &attr);
+	r = sffs_table->t_setattr(path, &attr);
   } else {
 	/* Write zeroes to the file. We can't create holes. */
 	if (cmp64(end, start) <= 0) return EINVAL;

servers/hgfs/Makefile

@@ -1,11 +1,9 @@
 # Makefile for VMware Host/Guest File System (HGFS) server
 PROG=	hgfs
-SRCS=	dentry.c handle.c inode.c link.c lookup.c main.c \
+SRCS=	hgfs.c
-	misc.c mount.c name.c path.c read.c stat.c table.c \
-	util.c verify.c write.c
 
-DPADD+=	${LIBHGFS} ${LIBSYS}
+DPADD+=	${LIBSFFS} ${LIBHGFS} ${LIBSYS}
-LDADD+=	-lhgfs -lsys
+LDADD+=	-lsffs -lhgfs -lsys
 
 MAN=
 

servers/hgfs/glo.h

@@ -1,12 +0,0 @@
-
-#ifdef _TABLE
-#undef EXTERN
-#define EXTERN
-#endif
-
-EXTERN message m_in;			/* request message */
-EXTERN message m_out;			/* reply message */
-EXTERN struct state state;		/* global state */
-EXTERN struct opt opt;			/* global options */
-
-extern int(*call_vec[]) (void);

servers/hgfs/hgfs.c

@@ -0,0 +1,106 @@
+/* This file contains the implementation of the HGFS file system server.
+ * The file system side is handled by libsffs, whereas the host communication
+ * is handled by libhgfs. This file mainly contains the glue between them.
+ *
+ * The entry points into this file are:
+ *   main		main program function
+ *
+ * Created:
+ *   April 2009 (D.C. van Moolenbroek)
+ */
+
+#include <minix/drivers.h>
+#include <minix/sffs.h>
+#include <minix/hgfs.h>
+#include <minix/optset.h>
+
+static struct sffs_params params;
+
+static struct optset optset_table[] = {
+  { "prefix",   OPT_STRING, params.p_prefix,       sizeof(params.p_prefix) },
+  { "uid",      OPT_INT,    &params.p_uid,         10                      },
+  { "gid",      OPT_INT,    &params.p_gid,         10                      },
+  { "fmask",    OPT_INT,    &params.p_file_mask,   8                       },
+  { "dmask",    OPT_INT,    &params.p_dir_mask,    8                       },
+  { "icase",    OPT_BOOL,   &params.p_case_insens, TRUE                    },
+  { "noicase",  OPT_BOOL,   &params.p_case_insens, FALSE                   },
+  { NULL,       0,          NULL,                  0                       }
+};
+
+/*===========================================================================*
+ *				sef_cb_init_fresh			     *
+ *===========================================================================*/
+static int sef_cb_init_fresh(int UNUSED(type), sef_init_info_t *UNUSED(info))
+{
+/* Initialize this file server. Called at startup time.
+ */
+  const struct sffs_table *table;
+  int i, r;
+
+  /* Defaults */
+  params.p_prefix[0] = 0;
+  params.p_uid = 0;
+  params.p_gid = 0;
+  params.p_file_mask = 0755;
+  params.p_dir_mask = 0755;
+  params.p_case_insens = FALSE;
+
+  /* If we have been given an options string, parse options from there. */
+  for (i = 1; i < env_argc - 1; i++)
+	if (!strcmp(env_argv[i], "-o"))
+		optset_parse(optset_table, env_argv[++i]);
+
+  /* Initialize the HGFS library. If this fails, exit immediately. */
+  if ((r = hgfs_init(&table)) != OK) {
+	if (r == EAGAIN)
+		printf("HGFS: shared folders are disabled\n");
+	else
+		printf("HGFS: unable to initialize HGFS library (%d)\n", r);
+
+	return r;
+  }
+
+  /* Now initialize the SFFS library. */
+  if ((r = sffs_init("HGFS", table, &params)) != OK) {
+	hgfs_cleanup();
+
+	return r;
+  }
+
+  return OK;
+}
+
+/*===========================================================================*
+ *				sef_local_startup			     *
+ *===========================================================================*/
+static void sef_local_startup(void)
+{
+/* Local SEF initialization.
+ */
+
+  /* Register init callback. */
+  sef_setcb_init_fresh(sef_cb_init_fresh);
+
+  /* Register signal callback. SFFS handles this. */
+  sef_setcb_signal_handler(sffs_signal);
+
+  sef_startup();
+}
+
+/*===========================================================================*
+ *				main					     *
+ *===========================================================================*/
+int main(int argc, char **argv)
+{
+/* The main function of this file server.
+ */
+
+  env_setargs(argc, argv);
+  sef_local_startup();
+
+  sffs_loop();
+
+  hgfs_cleanup();
+
+  return 0;
+}

servers/hgfs/inc.h

@@ -1,39 +0,0 @@
-
-#define _POSIX_SOURCE 1			/* for signal handling */
-#define _SYSTEM 1			/* for negative error values */
-#define _MINIX 1
-
-#include <minix/config.h>
-#include <minix/const.h>
-#include <minix/type.h>
-#include <minix/ipc.h>
-#include <minix/com.h>
-#include <minix/callnr.h>
-#include <minix/safecopies.h>
-#include <minix/vfsif.h>
-#include <minix/syslib.h>
-#include <minix/sysutil.h>
-#include <minix/optset.h>
-#include <sys/param.h>
-
-#if DEBUG
-#define dprintf(x) printf x
-#else
-#define dprintf(x)
-#endif
-
-#include <string.h>
-#include <errno.h>
-#include <assert.h>
-#include <limits.h>
-#include <sys/stat.h>
-#include <sys/queue.h>
-
-#include <minix/hgfs.h>
-
-#include "type.h"
-#include "const.h"
-#include "proto.h"
-#include "glo.h"
-
-#include "inode.h"

servers/hgfs/main.c

@@ -1,204 +0,0 @@
-/* This file contains the main message loop of the HGFS file system server.
- *
- * The entry points into this file are:
- *   main		main program function
- *
- * Created:
- *   April 2009 (D.C. van Moolenbroek)
- */
-
-#include "inc.h"
-
-#include <signal.h>
-#include <unistd.h>
-#include <stdlib.h>
-
-static void get_work(endpoint_t *who_e);
-static void send_reply(int err, int transid);
-
-static struct optset optset_table[] = {
-  { "prefix",   OPT_STRING, opt.prefix,       sizeof(opt.prefix) },
-  { "uid",      OPT_INT,    &opt.uid,         10                 },
-  { "gid",      OPT_INT,    &opt.gid,         10                 },
-  { "fmask",    OPT_INT,    &opt.file_mask,   8                  },
-  { "dmask",    OPT_INT,    &opt.dir_mask,    8                  },
-  { "icase",    OPT_BOOL,   &opt.case_insens, TRUE               },
-  { "noicase",  OPT_BOOL,   &opt.case_insens, FALSE              },
-  { NULL,       0,          NULL,             0                  }
-};
-
-/* SEF functions and variables. */
-static void sef_local_startup(void);
-static int sef_cb_init_fresh(int type, sef_init_info_t *info);
-static void sef_cb_signal_handler(int signo);
-
-/*===========================================================================*
- *			      sef_cb_init_fresh				     *
- *===========================================================================*/
-static int sef_cb_init_fresh(int UNUSED(type), sef_init_info_t *UNUSED(info))
-{
-/* Initialize this file server. Called at startup time.
- */
-  int i, r;
-
-  /* Defaults */
-  opt.prefix[0] = 0;
-  opt.uid = 0;
-  opt.gid = 0;
-  opt.file_mask = 0755;
-  opt.dir_mask = 0755;
-  opt.case_insens = FALSE;
-
-  /* If we have been given an options string, parse options from there. */
-  for (i = 1; i < env_argc - 1; i++)
-	if (!strcmp(env_argv[i], "-o"))
-		optset_parse(optset_table, env_argv[++i]);
-
-  /* Make sure that the given path prefix doesn't end with a slash. */
-  for (i = strlen(opt.prefix); i > 0 && opt.prefix[i - 1] == '/'; i--);
-  opt.prefix[i] = 0;
-
-  /* Initialize the HGFS library. If this fails, exit immediately. */
-  r = hgfs_init();
-  if (r != OK) {
-	if (r == EAGAIN)
-		printf("HGFS: shared folders are disabled\n");
-	else
-		printf("HGFS: unable to initialize HGFS library (%d)\n", r);
-
-	return r;
-  }
-
-  state.mounted = FALSE;
-
-  return OK;
-}
-
-/*===========================================================================*
- *		           sef_cb_signal_handler                             *
- *===========================================================================*/
-static void sef_cb_signal_handler(int signo)
-{
-  /* Only check for termination signal, ignore anything else. */
-  if (signo != SIGTERM) return;
-
-  if (state.mounted) {
-      dprintf(("HGFS: got SIGTERM, still mounted\n"));
-  }
-  else {
-      dprintf(("HGFS: got SIGTERM, shutting down\n"));
-
-      /* Pass on the cleanup request to the HGFS library. */
-      hgfs_cleanup();
-      exit(0);
-  }
-}
-
-/*===========================================================================*
- *				sef_local_startup			     *
- *===========================================================================*/
-static void sef_local_startup(void)
-{
-  /* Register init callbacks. */
-  sef_setcb_init_fresh(sef_cb_init_fresh);
-  sef_setcb_init_restart(sef_cb_init_fresh);
-
-  /* No live update support yet. */
-
-  /* Register signal callbacks. */
-  sef_setcb_signal_handler(sef_cb_signal_handler);
-
-  sef_startup();
-}
-
-/*===========================================================================*
- *				main					     *
- *===========================================================================*/
-int main(argc, argv)
-int argc;
-char *argv[];
-{
-/* The main function of this file server. After initializing, loop forever
- * receiving one request from VFS at a time, processing it, and sending a
- * reply back to VFS.
- */
-  endpoint_t who_e;
-  int call_nr, err, transid;
-
-  env_setargs(argc, argv);
-  sef_local_startup();
-
-  for (;;) {
-	get_work(&who_e);
-
-	transid = TRNS_GET_ID(m_in.m_type);
-	m_in.m_type = TRNS_DEL_ID(m_in.m_type);
-	if (m_in.m_type == 0) {
-		assert(!IS_VFS_FS_TRANSID(transid));
-		m_in.m_type = transid;		/* Backwards compat. */
-		transid = 0;
-	} else
-		assert(IS_VFS_FS_TRANSID(transid));
-
-	call_nr = m_in.m_type;
-	if (who_e != VFS_PROC_NR) {
-		continue;
-	}
-
-	if (state.mounted || call_nr == REQ_READSUPER) {
-		call_nr -= VFS_BASE;
-
-		dprintf(("HGFS: call %d\n", call_nr));
-
-		if (call_nr >= 0 && call_nr < NREQS) {
-			err = (*call_vec[call_nr])();
-		} else {
-			err = ENOSYS;
-		}
-
-		dprintf(("HGFS: call %d result %d\n", call_nr, err));
-	}
-	else err = EINVAL;
-
-	send_reply(err, transid);
-  }
-
-  return 0;
-}
-
-/*===========================================================================*
- *				get_work				     *
- *===========================================================================*/
-static void get_work(who_e)
-endpoint_t *who_e;
-{
-/* Receive a request message from VFS. Return the request call number.
- */
-  int r;
-
-  if ((r = sef_receive(ANY, &m_in)) != OK)
-	panic("receive failed: %d", r);
-
-  *who_e = m_in.m_source;
-}
-
-/*===========================================================================*
- *				send_reply				     *
- *===========================================================================*/
-static void send_reply(err, transid)
-int err;				/* resulting error code */
-int transid;
-{
-/* Send a reply message to the requesting party, with the given error code.
- */
-  int r;
-
-  m_out.m_type = err;
-  if (IS_VFS_FS_TRANSID(transid)) {
-	/* If a transaction ID was set, reset it */
-	m_out.m_type = TRNS_ADD_ID(m_out.m_type, transid);
-  }
-  if ((r = send(m_in.m_source, &m_out)) != OK)
-	printf("HGFS: send failed (%d)\n", r);
-}
-

servers/hgfs/type.h

@@ -1,19 +0,0 @@
-
-/* Structure with global file system state. */
-struct state {
-  int mounted;			/* is the file system mounted? */
-  int read_only;		/* is the file system mounted read-only? note,
-				 * has no relation to the shared folder mode */
-  dev_t dev;			/* device the file system is mounted on */
-};
-
-/* Structure with options affecting global behavior. */
-struct opt {
-  char prefix[PATH_MAX];	/* prefix for all paths used */
-  uid_t uid;			/* UID that owns all files */
-  gid_t gid;			/* GID that owns all files */
-  unsigned int file_mask;	/* AND-mask to apply to file permissions */
-  unsigned int dir_mask;	/* AND-mask to apply to directory perm's */
-  int case_insens;		/* case insensitivity flag; has no relation
-				 * to the hosts's shared folder naming */
-};

share/mk/bsd.prog.mk

@@ -59,7 +59,7 @@ MKDEP_SUFFIXES?=	.o .ln
 # 	rumpfs_tmpfs rumpfs_udf rumpfs_ufs
 .for _lib in \
 	c curses blockdriver chardriver netdriver edit end m sys timers util \
-	bz2 l hgfs audiodriver exec ddekit devman usb elf bdev
+	bz2 l audiodriver exec ddekit devman usb elf bdev sffs hgfs
 .ifndef LIB${_lib:tu}
 LIB${_lib:tu}=	${DESTDIR}/usr/lib/lib${_lib}.a
 .MADE:		${LIB${_lib:tu}}	# Note: ${DESTDIR} will be expanded