Merging upstream version 1.75.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 172 insertions, 168 deletions

diff --git a/vendor/redox_syscall/src/scheme/generate.sh b/vendor/redox_syscall/src/scheme/generate.sh
index a877cda92..be851f57b 100755
--- a/vendor/redox_syscall/src/scheme/generate.sh
+++ b/vendor/redox_syscall/src/scheme/generate.sh
@@ -15,6 +15,8 @@ sed 's/trait Scheme/trait SchemeBlock/' scheme.rs \
 | sed 's/\.map(|o| o as usize)/.map(|o| o.map(|o| o as usize))/' \
 | sed 's/Ok(0)/Ok(Some(0))/g' \
 | sed 's/Result<\([^>]\+\)>/Result<Option<\1>>/g' \
+| sed 's/convert_to_this_scheme/convert_to_this_scheme_block/g' \
+| sed 's/convert_in_scheme_handle/convert_in_scheme_handle_block/g' \
 > scheme_block.rs
 
 echo "Generating SchemeBlockMut from SchemeBlock"
diff --git a/vendor/redox_syscall/src/scheme/mod.rs b/vendor/redox_syscall/src/scheme/mod.rs
index f65d1e2c0..61655dabf 100644
--- a/vendor/redox_syscall/src/scheme/mod.rs
+++ b/vendor/redox_syscall/src/scheme/mod.rs
@@ -1,5 +1,7 @@
 use core::{slice, str};
 
+use crate::{Error, Result, EOPNOTSUPP, ESKMSG, Packet, SKMSG_FRETURNFD};
+
 pub use self::scheme::Scheme;
 pub use self::scheme_mut::SchemeMut;
 pub use self::scheme_block::SchemeBlock;
@@ -16,3 +18,51 @@ mod scheme_mut;
 mod scheme_block;
 mod scheme_block_mut;
 mod seek;
+
+pub struct CallerCtx {
+    pub pid: usize,
+    pub uid: u32,
+    pub gid: u32,
+}
+
+pub enum OpenResult {
+    ThisScheme { number: usize },
+    OtherScheme { fd: usize },
+}
+
+// TODO: Find a better solution than generate.sh
+pub(crate) fn convert_to_this_scheme(r: Result<usize>) -> Result<OpenResult> {
+    r.map(|number| OpenResult::ThisScheme { number })
+}
+pub(crate) fn convert_to_this_scheme_block(r: Result<Option<usize>>) -> Result<Option<OpenResult>> {
+    r.map(|o| o.map(|number| OpenResult::ThisScheme { number }))
+}
+pub(crate) fn convert_in_scheme_handle_block(_: &Packet, result: Result<Option<OpenResult>>) -> Result<Option<usize>> {
+    match result {
+        Ok(Some(OpenResult::ThisScheme { number })) => Ok(Some(number)),
+        Ok(Some(OpenResult::OtherScheme { .. })) => Err(Error::new(EOPNOTSUPP)),
+        Ok(None) => Ok(None),
+        Err(err) => Err(err),
+    }
+}
+pub(crate) fn convert_in_scheme_handle(packet: &mut Packet, result: Result<OpenResult>) -> Result<usize> {
+    match result {
+        Ok(OpenResult::ThisScheme { number }) => Ok(number),
+        Ok(OpenResult::OtherScheme { fd }) => {
+            packet.b = SKMSG_FRETURNFD;
+            packet.c = fd;
+            Err(Error::new(ESKMSG))
+        }
+        Err(err) => Err(err),
+    }
+}
+
+impl CallerCtx {
+    pub fn from_packet(packet: &Packet) -> Self {
+        Self {
+            pid: packet.pid,
+            uid: packet.uid,
+            gid: packet.gid,
+        }
+    }
+}
diff --git a/vendor/redox_syscall/src/scheme/scheme.rs b/vendor/redox_syscall/src/scheme/scheme.rs
index 6bf36172c..ee09d697b 100644
--- a/vendor/redox_syscall/src/scheme/scheme.rs
+++ b/vendor/redox_syscall/src/scheme/scheme.rs
@@ -1,17 +1,20 @@
 use core::{mem, slice};
 
+use crate::CallerCtx;
+use crate::OpenResult;
 use crate::data::*;
 use crate::error::*;
 use crate::flag::*;
 use crate::number::*;
-use crate::scheme::str_from_raw_parts;
+use crate::scheme::*;
 
 pub trait Scheme {
     fn handle(&self, packet: &mut Packet) {
         let res = match packet.a {
             SYS_OPEN => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } {
-                self.open(path, packet.d, packet.uid, packet.gid)
-            } else {
+                convert_in_scheme_handle(packet, self.xopen(path, packet.d, &CallerCtx::from_packet(&packet)))
+            }
+            else {
                 Err(Error::new(EINVAL))
             },
             SYS_RMDIR => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } {
@@ -25,7 +28,7 @@ pub trait Scheme {
                 Err(Error::new(EINVAL))
             },
 
-            SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_DUP => convert_in_scheme_handle(packet, self.xdup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, &CallerCtx::from_packet(&packet))),
             SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
             SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
             SYS_LSEEK => self.seek(packet.b, packet.c as isize, packet.d).map(|o| o as usize),
@@ -33,18 +36,6 @@ pub trait Scheme {
             SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
             SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
             SYS_FEVENT => self.fevent(packet.b, EventFlags::from_bits_truncate(packet.c)).map(|f| f.bits()),
-            SYS_FMAP_OLD => if packet.d >= mem::size_of::<OldMap>() {
-                self.fmap_old(packet.b, unsafe { &*(packet.c as *const OldMap) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FMAP => if packet.d >= mem::size_of::<Map>() {
-                self.fmap(packet.b, unsafe { &*(packet.c as *const Map) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FUNMAP_OLD => self.funmap_old(packet.b),
-            SYS_FUNMAP => self.funmap(packet.b, packet.c),
             SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
             SYS_FRENAME => if let Some(path) = unsafe { str_from_raw_parts(packet.c as *const u8, packet.d) } {
                 self.frename(packet.b, path, packet.uid, packet.gid)
@@ -69,6 +60,10 @@ pub trait Scheme {
                 Err(Error::new(EFAULT))
             },
             SYS_CLOSE => self.close(packet.b),
+
+            KSMSG_MMAP_PREP => self.mmap_prep(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MapFlags::from_bits_truncate(packet.d)),
+            KSMSG_MUNMAP => self.munmap(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MunmapFlags::from_bits_truncate(packet.d)),
+
             _ => Err(Error::new(ENOSYS))
         };
 
@@ -81,6 +76,10 @@ pub trait Scheme {
     fn open(&self, path: &str, flags: usize, uid: u32, gid: u32) -> Result<usize> {
         Err(Error::new(ENOENT))
     }
+    #[allow(unused_variables)]
+    fn xopen(&self, path: &str, flags: usize, ctx: &CallerCtx) -> Result<OpenResult> {
+        convert_to_this_scheme(self.open(path, flags, ctx.uid, ctx.gid))
+    }
 
     #[allow(unused_variables)]
     fn chmod(&self, path: &str, mode: u16, uid: u32, gid: u32) -> Result<usize> {
@@ -104,6 +103,11 @@ pub trait Scheme {
     }
 
     #[allow(unused_variables)]
+    fn xdup(&self, old_id: usize, buf: &[u8], ctx: &CallerCtx) -> Result<OpenResult> {
+        convert_to_this_scheme(self.dup(old_id, buf))
+    }
+
+    #[allow(unused_variables)]
     fn read(&self, id: usize, buf: &mut [u8]) -> Result<usize> {
         Err(Error::new(EBADF))
     }
@@ -139,32 +143,6 @@ pub trait Scheme {
     }
 
     #[allow(unused_variables)]
-    fn fmap_old(&self, id: usize, map: &OldMap) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-    #[allow(unused_variables)]
-    fn fmap(&self, id: usize, map: &Map) -> Result<usize> {
-        if map.flags.contains(MapFlags::MAP_FIXED) {
-            return Err(Error::new(EINVAL));
-        }
-        self.fmap_old(id, &OldMap {
-            offset: map.offset,
-            size: map.size,
-            flags: map.flags,
-        })
-    }
-
-    #[allow(unused_variables)]
-    fn funmap_old(&self, address: usize) -> Result<usize> {
-        Ok(0)
-    }
-
-    #[allow(unused_variables)]
-    fn funmap(&self, address: usize, length: usize) -> Result<usize> {
-        Ok(0)
-    }
-
-    #[allow(unused_variables)]
     fn fpath(&self, id: usize, buf: &mut [u8]) -> Result<usize> {
         Err(Error::new(EBADF))
     }
@@ -203,4 +181,14 @@ pub trait Scheme {
     fn close(&self, id: usize) -> Result<usize> {
         Err(Error::new(EBADF))
     }
+
+    #[allow(unused_variables)]
+    fn mmap_prep(&self, id: usize, offset: u64, size: usize, flags: MapFlags) -> Result<usize> {
+        Err(Error::new(EOPNOTSUPP))
+    }
+
+    #[allow(unused_variables)]
+    fn munmap(&self, id: usize, offset: u64, size: usize, flags: MunmapFlags) -> Result<usize> {
+        Err(Error::new(EOPNOTSUPP))
+    }
 }
diff --git a/vendor/redox_syscall/src/scheme/scheme_block.rs b/vendor/redox_syscall/src/scheme/scheme_block.rs
index 3b3de4bc9..e74e3b7e2 100644
--- a/vendor/redox_syscall/src/scheme/scheme_block.rs
+++ b/vendor/redox_syscall/src/scheme/scheme_block.rs
@@ -1,17 +1,20 @@
 use core::{mem, slice};
 
+use crate::CallerCtx;
+use crate::OpenResult;
 use crate::data::*;
 use crate::error::*;
 use crate::flag::*;
 use crate::number::*;
-use crate::scheme::str_from_raw_parts;
+use crate::scheme::*;
 
 pub trait SchemeBlock {
     fn handle(&self, packet: &Packet) -> Option<usize> {
         let res = match packet.a {
             SYS_OPEN => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } {
-                self.open(path, packet.d, packet.uid, packet.gid)
-            } else {
+                convert_in_scheme_handle_block(packet, self.xopen(path, packet.d, &CallerCtx::from_packet(&packet)))
+            }
+            else {
                 Err(Error::new(EINVAL))
             },
             SYS_RMDIR => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } {
@@ -25,7 +28,7 @@ pub trait SchemeBlock {
                 Err(Error::new(EINVAL))
             },
 
-            SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_DUP => convert_in_scheme_handle_block(packet, self.xdup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, &CallerCtx::from_packet(&packet))),
             SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
             SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
             SYS_LSEEK => self.seek(packet.b, packet.c as isize, packet.d).map(|o| o.map(|o| o as usize)),
@@ -33,18 +36,6 @@ pub trait SchemeBlock {
             SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
             SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
             SYS_FEVENT => self.fevent(packet.b, EventFlags::from_bits_truncate(packet.c)).map(|f| f.map(|f| f.bits())),
-            SYS_FMAP_OLD => if packet.d >= mem::size_of::<OldMap>() {
-                self.fmap_old(packet.b, unsafe { &*(packet.c as *const OldMap) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FMAP => if packet.d >= mem::size_of::<Map>() {
-                self.fmap(packet.b, unsafe { &*(packet.c as *const Map) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FUNMAP_OLD => self.funmap_old(packet.b),
-            SYS_FUNMAP => self.funmap(packet.b, packet.c),
             SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
             SYS_FRENAME => if let Some(path) = unsafe { str_from_raw_parts(packet.c as *const u8, packet.d) } {
                 self.frename(packet.b, path, packet.uid, packet.gid)
@@ -69,6 +60,10 @@ pub trait SchemeBlock {
                 Err(Error::new(EFAULT))
             },
             SYS_CLOSE => self.close(packet.b),
+
+            KSMSG_MMAP_PREP => self.mmap_prep(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MapFlags::from_bits_truncate(packet.d)),
+            KSMSG_MUNMAP => self.munmap(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MunmapFlags::from_bits_truncate(packet.d)),
+
             _ => Err(Error::new(ENOSYS))
         };
 
@@ -81,6 +76,10 @@ pub trait SchemeBlock {
     fn open(&self, path: &str, flags: usize, uid: u32, gid: u32) -> Result<Option<usize>> {
         Err(Error::new(ENOENT))
     }
+    #[allow(unused_variables)]
+    fn xopen(&self, path: &str, flags: usize, ctx: &CallerCtx) -> Result<Option<OpenResult>> {
+        convert_to_this_scheme_block(self.open(path, flags, ctx.uid, ctx.gid))
+    }
 
     #[allow(unused_variables)]
     fn chmod(&self, path: &str, mode: u16, uid: u32, gid: u32) -> Result<Option<usize>> {
@@ -104,6 +103,11 @@ pub trait SchemeBlock {
     }
 
     #[allow(unused_variables)]
+    fn xdup(&self, old_id: usize, buf: &[u8], ctx: &CallerCtx) -> Result<Option<OpenResult>> {
+        convert_to_this_scheme_block(self.dup(old_id, buf))
+    }
+
+    #[allow(unused_variables)]
     fn read(&self, id: usize, buf: &mut [u8]) -> Result<Option<usize>> {
         Err(Error::new(EBADF))
     }
@@ -139,32 +143,6 @@ pub trait SchemeBlock {
     }
 
     #[allow(unused_variables)]
-    fn fmap_old(&self, id: usize, map: &OldMap) -> Result<Option<usize>> {
-        Err(Error::new(EBADF))
-    }
-    #[allow(unused_variables)]
-    fn fmap(&self, id: usize, map: &Map) -> Result<Option<usize>> {
-        if map.flags.contains(MapFlags::MAP_FIXED) {
-            return Err(Error::new(EINVAL));
-        }
-        self.fmap_old(id, &OldMap {
-            offset: map.offset,
-            size: map.size,
-            flags: map.flags,
-        })
-    }
-
-    #[allow(unused_variables)]
-    fn funmap_old(&self, address: usize) -> Result<Option<usize>> {
-        Ok(Some(0))
-    }
-
-    #[allow(unused_variables)]
-    fn funmap(&self, address: usize, length: usize) -> Result<Option<usize>> {
-        Ok(Some(0))
-    }
-
-    #[allow(unused_variables)]
     fn fpath(&self, id: usize, buf: &mut [u8]) -> Result<Option<usize>> {
         Err(Error::new(EBADF))
     }
@@ -203,4 +181,14 @@ pub trait SchemeBlock {
     fn close(&self, id: usize) -> Result<Option<usize>> {
         Err(Error::new(EBADF))
     }
+
+    #[allow(unused_variables)]
+    fn mmap_prep(&self, id: usize, offset: u64, size: usize, flags: MapFlags) -> Result<Option<usize>> {
+        Err(Error::new(EOPNOTSUPP))
+    }
+
+    #[allow(unused_variables)]
+    fn munmap(&self, id: usize, offset: u64, size: usize, flags: MunmapFlags) -> Result<Option<usize>> {
+        Err(Error::new(EOPNOTSUPP))
+    }
 }
diff --git a/vendor/redox_syscall/src/scheme/scheme_block_mut.rs b/vendor/redox_syscall/src/scheme/scheme_block_mut.rs
index 1fae3a0e5..fd2c59069 100644
--- a/vendor/redox_syscall/src/scheme/scheme_block_mut.rs
+++ b/vendor/redox_syscall/src/scheme/scheme_block_mut.rs
@@ -1,17 +1,20 @@
 use core::{mem, slice};
 
+use crate::CallerCtx;
+use crate::OpenResult;
 use crate::data::*;
 use crate::error::*;
 use crate::flag::*;
 use crate::number::*;
-use crate::scheme::str_from_raw_parts;
+use crate::scheme::*;
 
 pub trait SchemeBlockMut {
     fn handle(&mut self, packet: &Packet) -> Option<usize> {
         let res = match packet.a {
             SYS_OPEN => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } {
-                self.open(path, packet.d, packet.uid, packet.gid)
-            } else {
+                convert_in_scheme_handle_block(packet, self.xopen(path, packet.d, &CallerCtx::from_packet(&packet)))
+            }
+            else {
                 Err(Error::new(EINVAL))
             },
             SYS_RMDIR => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } {
@@ -25,7 +28,7 @@ pub trait SchemeBlockMut {
                 Err(Error::new(EINVAL))
             },
 
-            SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_DUP => convert_in_scheme_handle_block(packet, self.xdup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, &CallerCtx::from_packet(&packet))),
             SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
             SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
             SYS_LSEEK => self.seek(packet.b, packet.c as isize, packet.d).map(|o| o.map(|o| o as usize)),
@@ -33,18 +36,6 @@ pub trait SchemeBlockMut {
             SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
             SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
             SYS_FEVENT => self.fevent(packet.b, EventFlags::from_bits_truncate(packet.c)).map(|f| f.map(|f| f.bits())),
-            SYS_FMAP_OLD => if packet.d >= mem::size_of::<OldMap>() {
-                self.fmap_old(packet.b, unsafe { &*(packet.c as *const OldMap) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FMAP => if packet.d >= mem::size_of::<Map>() {
-                self.fmap(packet.b, unsafe { &*(packet.c as *const Map) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FUNMAP_OLD => self.funmap_old(packet.b),
-            SYS_FUNMAP => self.funmap(packet.b, packet.c),
             SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
             SYS_FRENAME => if let Some(path) = unsafe { str_from_raw_parts(packet.c as *const u8, packet.d) } {
                 self.frename(packet.b, path, packet.uid, packet.gid)
@@ -69,6 +60,10 @@ pub trait SchemeBlockMut {
                 Err(Error::new(EFAULT))
             },
             SYS_CLOSE => self.close(packet.b),
+
+            KSMSG_MMAP_PREP => self.mmap_prep(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MapFlags::from_bits_truncate(packet.d)),
+            KSMSG_MUNMAP => self.munmap(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MunmapFlags::from_bits_truncate(packet.d)),
+
             _ => Err(Error::new(ENOSYS))
         };
 
@@ -81,6 +76,10 @@ pub trait SchemeBlockMut {
     fn open(&mut self, path: &str, flags: usize, uid: u32, gid: u32) -> Result<Option<usize>> {
         Err(Error::new(ENOENT))
     }
+    #[allow(unused_variables)]
+    fn xopen(&mut self, path: &str, flags: usize, ctx: &CallerCtx) -> Result<Option<OpenResult>> {
+        convert_to_this_scheme_block(self.open(path, flags, ctx.uid, ctx.gid))
+    }
 
     #[allow(unused_variables)]
     fn chmod(&mut self, path: &str, mode: u16, uid: u32, gid: u32) -> Result<Option<usize>> {
@@ -104,6 +103,11 @@ pub trait SchemeBlockMut {
     }
 
     #[allow(unused_variables)]
+    fn xdup(&mut self, old_id: usize, buf: &[u8], ctx: &CallerCtx) -> Result<Option<OpenResult>> {
+        convert_to_this_scheme_block(self.dup(old_id, buf))
+    }
+
+    #[allow(unused_variables)]
     fn read(&mut self, id: usize, buf: &mut [u8]) -> Result<Option<usize>> {
         Err(Error::new(EBADF))
     }
@@ -139,32 +143,6 @@ pub trait SchemeBlockMut {
     }
 
     #[allow(unused_variables)]
-    fn fmap_old(&mut self, id: usize, map: &OldMap) -> Result<Option<usize>> {
-        Err(Error::new(EBADF))
-    }
-    #[allow(unused_variables)]
-    fn fmap(&mut self, id: usize, map: &Map) -> Result<Option<usize>> {
-        if map.flags.contains(MapFlags::MAP_FIXED) {
-            return Err(Error::new(EINVAL));
-        }
-        self.fmap_old(id, &OldMap {
-            offset: map.offset,
-            size: map.size,
-            flags: map.flags,
-        })
-    }
-
-    #[allow(unused_variables)]
-    fn funmap_old(&mut self, address: usize) -> Result<Option<usize>> {
-        Ok(Some(0))
-    }
-
-    #[allow(unused_variables)]
-    fn funmap(&mut self, address: usize, length: usize) -> Result<Option<usize>> {
-        Ok(Some(0))
-    }
-
-    #[allow(unused_variables)]
     fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result<Option<usize>> {
         Err(Error::new(EBADF))
     }
@@ -203,4 +181,14 @@ pub trait SchemeBlockMut {
     fn close(&mut self, id: usize) -> Result<Option<usize>> {
         Err(Error::new(EBADF))
     }
+
+    #[allow(unused_variables)]
+    fn mmap_prep(&mut self, id: usize, offset: u64, size: usize, flags: MapFlags) -> Result<Option<usize>> {
+        Err(Error::new(EOPNOTSUPP))
+    }
+
+    #[allow(unused_variables)]
+    fn munmap(&mut self, id: usize, offset: u64, size: usize, flags: MunmapFlags) -> Result<Option<usize>> {
+        Err(Error::new(EOPNOTSUPP))
+    }
 }
diff --git a/vendor/redox_syscall/src/scheme/scheme_mut.rs b/vendor/redox_syscall/src/scheme/scheme_mut.rs
index b364b62aa..2eea4dcbc 100644
--- a/vendor/redox_syscall/src/scheme/scheme_mut.rs
+++ b/vendor/redox_syscall/src/scheme/scheme_mut.rs
@@ -1,17 +1,20 @@
 use core::{mem, slice};
 
+use crate::CallerCtx;
+use crate::OpenResult;
 use crate::data::*;
 use crate::error::*;
 use crate::flag::*;
 use crate::number::*;
-use crate::scheme::str_from_raw_parts;
+use crate::scheme::*;
 
 pub trait SchemeMut {
     fn handle(&mut self, packet: &mut Packet) {
         let res = match packet.a {
             SYS_OPEN => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } {
-                self.open(path, packet.d, packet.uid, packet.gid)
-            } else {
+                convert_in_scheme_handle(packet, self.xopen(path, packet.d, &CallerCtx::from_packet(&packet)))
+            }
+            else {
                 Err(Error::new(EINVAL))
             },
             SYS_RMDIR => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } {
@@ -25,7 +28,7 @@ pub trait SchemeMut {
                 Err(Error::new(EINVAL))
             },
 
-            SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
+            SYS_DUP => convert_in_scheme_handle(packet, self.xdup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, &CallerCtx::from_packet(&packet))),
             SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
             SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
             SYS_LSEEK => self.seek(packet.b, packet.c as isize, packet.d).map(|o| o as usize),
@@ -33,18 +36,6 @@ pub trait SchemeMut {
             SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
             SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
             SYS_FEVENT => self.fevent(packet.b, EventFlags::from_bits_truncate(packet.c)).map(|f| f.bits()),
-            SYS_FMAP_OLD => if packet.d >= mem::size_of::<OldMap>() {
-                self.fmap_old(packet.b, unsafe { &*(packet.c as *const OldMap) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FMAP => if packet.d >= mem::size_of::<Map>() {
-                self.fmap(packet.b, unsafe { &*(packet.c as *const Map) })
-            } else {
-                Err(Error::new(EFAULT))
-            },
-            SYS_FUNMAP_OLD => self.funmap_old(packet.b),
-            SYS_FUNMAP => self.funmap(packet.b, packet.c),
             SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
             SYS_FRENAME => if let Some(path) = unsafe { str_from_raw_parts(packet.c as *const u8, packet.d) } {
                 self.frename(packet.b, path, packet.uid, packet.gid)
@@ -69,6 +60,10 @@ pub trait SchemeMut {
                 Err(Error::new(EFAULT))
             },
             SYS_CLOSE => self.close(packet.b),
+
+            KSMSG_MMAP_PREP => self.mmap_prep(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MapFlags::from_bits_truncate(packet.d)),
+            KSMSG_MUNMAP => self.munmap(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MunmapFlags::from_bits_truncate(packet.d)),
+
             _ => Err(Error::new(ENOSYS))
         };
 
@@ -81,6 +76,10 @@ pub trait SchemeMut {
     fn open(&mut self, path: &str, flags: usize, uid: u32, gid: u32) -> Result<usize> {
         Err(Error::new(ENOENT))
     }
+    #[allow(unused_variables)]
+    fn xopen(&mut self, path: &str, flags: usize, ctx: &CallerCtx) -> Result<OpenResult> {
+        convert_to_this_scheme(self.open(path, flags, ctx.uid, ctx.gid))
+    }
 
     #[allow(unused_variables)]
     fn chmod(&mut self, path: &str, mode: u16, uid: u32, gid: u32) -> Result<usize> {
@@ -104,6 +103,11 @@ pub trait SchemeMut {
     }
 
     #[allow(unused_variables)]
+    fn xdup(&mut self, old_id: usize, buf: &[u8], ctx: &CallerCtx) -> Result<OpenResult> {
+        convert_to_this_scheme(self.dup(old_id, buf))
+    }
+
+    #[allow(unused_variables)]
     fn read(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> {
         Err(Error::new(EBADF))
     }
@@ -139,32 +143,6 @@ pub trait SchemeMut {
     }
 
     #[allow(unused_variables)]
-    fn fmap_old(&mut self, id: usize, map: &OldMap) -> Result<usize> {
-        Err(Error::new(EBADF))
-    }
-    #[allow(unused_variables)]
-    fn fmap(&mut self, id: usize, map: &Map) -> Result<usize> {
-        if map.flags.contains(MapFlags::MAP_FIXED) {
-            return Err(Error::new(EINVAL));
-        }
-        self.fmap_old(id, &OldMap {
-            offset: map.offset,
-            size: map.size,
-            flags: map.flags,
-        })
-    }
-
-    #[allow(unused_variables)]
-    fn funmap_old(&mut self, address: usize) -> Result<usize> {
-        Ok(0)
-    }
-
-    #[allow(unused_variables)]
-    fn funmap(&mut self, address: usize, length: usize) -> Result<usize> {
-        Ok(0)
-    }
-
-    #[allow(unused_variables)]
     fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> {
         Err(Error::new(EBADF))
     }
@@ -203,4 +181,14 @@ pub trait SchemeMut {
     fn close(&mut self, id: usize) -> Result<usize> {
         Err(Error::new(EBADF))
     }
+
+    #[allow(unused_variables)]
+    fn mmap_prep(&mut self, id: usize, offset: u64, size: usize, flags: MapFlags) -> Result<usize> {
+        Err(Error::new(EOPNOTSUPP))
+    }
+
+    #[allow(unused_variables)]
+    fn munmap(&mut self, id: usize, offset: u64, size: usize, flags: MunmapFlags) -> Result<usize> {
+        Err(Error::new(EOPNOTSUPP))
+    }
 }