11 Commits

Author SHA1 Message Date
David van Moolenbroek
e296281ce2 VFS: do not make cloned devices setuid/setgid
Change-Id: Ifd97444dd54334ccbc8780df9473450998ab7489
2014-09-29 16:16:27 +00:00
David van Moolenbroek
f737eea636 svrctl(2) update
- synchronize request type with ioctl by making it unsigned long;
- unbreak VFS requests, as they were being sent to PM;
- use proper ioctl direction flags (and new numbers) for requests;
- remove some needless header inclusions;
- svrctl is in libc, make its message name reflect this;
- keep backward compatibility: svrctl is part of the userland ABI.

Change-Id: I44902e8d0d11b8ebc1ef3bda94d2202481743c9b
2014-09-29 16:15:21 +00:00
David van Moolenbroek
f859061eaf PFS: use libfsdriver
In order to avoid creating libfsdriver exceptions, two changes to VFS
are necessary:

- the returned position field for reads/writes is no longer abused to
  return the new pipe size; VFS is perfectly capable of updating the
  size itself;
- during system startup, PFS is now sent a mount request, just like all
  other file systems.

In proper "two steps forward, one step back" fashion, the latter point
has the consequence that PFS can no longer drop its privileges at
startup.  This is probably best resolved with a more general solution
for all boot image system services.  The upside is that PFS no longer
needs to be linked with libc.

Change-Id: I92e2410cdb0d93d0e6107bae10bc08efc2dbb8b3
2014-09-18 12:46:28 +00:00
David van Moolenbroek
ad80a203db Move clock_time into libsys
Change-Id: Ibc5034617e6f6581de7c4a166ca075b3c357fa82
2014-09-18 12:46:26 +00:00
David van Moolenbroek
e7b4aa7d99 VFS: provide correct root directory for lookups
This fixes a VFS panic and a chroot(2) security hole.

Change-Id: Ifd1923f886501cf3a73277aab89db974798c47dc
2014-09-18 12:46:23 +00:00
David van Moolenbroek
71cd1dd4b9 VFS: do not call REQ_FLUSH on the root file system
Change-Id: I15d29a6f3d198e604ea7f7a9db600d6d18b6994b
2014-09-18 12:46:22 +00:00
David van Moolenbroek
d3434cb55b VFS: convert EINTR to EAGAIN for nonblocking I/O
The conversion was never properly implemented for asynchronous
character drivers, and got lost during the removal of the
synchronous character protocol.

Change-Id: Ib858806859aa7a52d6b391d4c6c521a2be361fdd
2014-08-31 17:29:47 +00:00
David van Moolenbroek
27d0ecdb62 VFS: unbreak select on /dev/tty
The remapping from /dev/tty to the real controlling terminal in the
device code was confusing the select code.  The latter is now aware
of this case and should handle it properly, at the cost of one extra
field in the filp structure.

There is a nasty, hopefully sufficiently rare case of /dev/tty being
kept open while controlling terminals are changing, that we are still
not handling.  Doing so would require more than just a few changes,
but the code should at least detect and cleanly fail on this case.

Test77 now has a basic test set for selecting on /dev/tty.

Change-Id: Iaedea449cdb728d0e66a9de8faacdfd9638dfe92
2014-08-28 16:30:48 +00:00
David van Moolenbroek
3b4688844f VFS: complete the devmajor_t/devminor_t switch
Change-Id: I9f809283f19d577cf7e02705fdbb2310ae2b6cba
2014-08-28 16:29:56 +00:00
Lionel Sambuc
50a1aef12b Move all services to /service
This concerns all services, a.k.a drivers, filesystem drivers, network
(inet, lwip, uds) servers, and the system servers.

Change-Id: I626fd15c795e15af42df2d10d47fb4a703665d63
2014-07-31 16:00:31 +02:00
Lionel Sambuc
433d6423c3 New sources layout
Change-Id: Ic716f336b7071063997cf5b4dae6d50e0b4631e9
2014-07-31 16:00:30 +02:00