Commit Graph

475 Commits

Author SHA1 Message Date
Norman Feske
87be50c542 os: add Expanding_reporter::generate(Xml_node)
This method allows for the verbatim reporting of an existing XML node.
2018-05-30 13:36:40 +02:00
Martin Stein
734d174f33 net: get rid of unused mac_from_string method
Issue #2815
2018-05-30 13:36:36 +02:00
Martin Stein
342bdaf4a2 net: generic ascii_to for Netaddress template
Issue #2837
2018-05-30 13:36:32 +02:00
Christian Prochaska
c5f1ac615c Usb::Packet_handler: avoid completion handler recursion
Fixes #2828
2018-05-30 13:36:20 +02:00
Emery Hemingway
29c08d4751 Fix types for VFS error printing
Ref #2793
2018-05-30 13:36:14 +02:00
Martin Stein
41dbad13e4 nic_router/nic_bridge: re-work Mac_allocator
The old MAC allocator had several drawbacks:

* the address base was a public static that could and must have been written
  directly from outside the class
* the in-use-flag array was based on unsigned values consuming 4 bytes each
  for only one bit of information
* it was a public header that we actually don't want to expose to all
  components but only to the few networking components
* it used the not-so-safe bit notation for integer members of GCC

The new version fixes all these drawbacks.

Issue #2795
2018-05-30 13:36:11 +02:00
Martin Stein
980f3e9c5c net: use Size_guard for packet-data accessors
Instead of handing over the maximum available size to the packet data
accessors, hand over a size guard that keeps track of the packets
boundaries.

This commit also moves the size-guard utilitiy header of Ping and NIC
Router to the include/net directory making it a part of the net library.
It applies the new approach to all net-lib users in the basic repositories.

Ping looses its configurability regarding the ICMP data size as this would
require an additional method in the size guard which would be used only by
Ping.

The size guard was also re-worked to fit the fact that a packet can
bring a tail as well as a header (Ethernet).

Issue #2788
2018-05-30 13:36:11 +02:00
Emery Hemingway
483d005350 VFS: detect root dir based on config node type
Ref #2782
2018-05-03 15:32:00 +02:00
Norman Feske
8e0cc44e24 terminal: preserve content during resize
This patch eliminates the flickering of the terminal during resize.
2018-05-03 15:31:59 +02:00
Emery Hemingway
0b980073c1 VFS: close handles via handle method
The using pattern 'handle->close' is less error prone than attempting
'handle->ds().close(handle)' or 'fs.close(handle)'.

Ref #2782
2018-05-03 15:31:57 +02:00
Martin Stein
11a297b557 net: consider tail of Ethernet frame
The Ethernet payload may be followed by padding of variable length and
the FCS (Frame Check Sequence). Thus, we should consider the value
"Ethernet-frame size minus Ethernet-header size" to be only the maximum
size of the encapsulated IP packet. But until now, we considered it to
be also the actual size of the encapsulated IP packet. This commit fixes
the problem for all affected components of the Genode base-repository.

Fixes #2775
2018-05-03 15:31:57 +02:00
Martin Stein
841d583678 net: implement Udp_packet::checksum_error
For checking the checksum of a UDP packet.

Issue #2775
2018-05-03 15:31:56 +02:00
Martin Stein
6b55790e73 net: use generic internet checksum
This reduces the redundant implementations of checksum calculation to
one generic implementation, makes the checksum interface conform over
all protocols, and brings performance optimizations. For instance,
the checksum is now calculated directly in big endian which saves us
most of the previously done byte-re-ordering.

Issue #2775
2018-05-03 15:31:56 +02:00
Martin Stein
373134c4e7 net: safer access to packet data
Replace packet method 'T *data' by the new methods 'T &reinterpret_data'
for parsing or modifying existing sub-protocol packets and 'T
&construct_at_data' for composing a new sub-protocol packet. This has
the advantage that, when composing a new packet, the default constructor
that zero-fills the packet is always called first.

Fixes #2751
2018-05-03 15:31:54 +02:00
Norman Feske
afcad2a968 os: new Input::Event representation
This commit changes the 'Input::Event' type to be more safe and to
deliver symbolic character information along with press events.

Issue #2761
Fixes #2786
2018-05-03 15:31:25 +02:00
Norman Feske
1f1302e185 terminal: use VFS-based font handling
This patch replaces the terminal's formerly built-in fonts with the new
VFS-based font handling.

To avoid the copying of the terminal's font configuration across run
scripts, this patch adds the new terminal/pkg runtime package, which
includes everything needed for instantiating a terminal: the actual
terminal component, the library dependencies (vfs_ttf, which in turn
depends on the libc), a font (bitstream-vera), and a reasonable default
configuration.

Fixes #2758
2018-05-03 15:31:17 +02:00
Norman Feske
0011dd1623 terminal: remove built-in keyboard layout handling
Fixes #2757
2018-04-19 13:38:34 +02:00
Norman Feske
8bcf540915 os: add Text_painter::Font::height method
Issue #2716
2018-04-19 13:38:33 +02:00
Norman Feske
0a72b37363 vfs: Simple::env::apply_config 2018-04-19 13:38:33 +02:00
Emery Hemingway
3c07860aad VFS: watch result is ERR_UNACCESSIBLE by default
Ref #2745
2018-04-19 12:38:50 +02:00
Emery Hemingway
97f50e8e15 VFS: dir fs Opendir must open at least one directory to succeed
Ref #2745
2018-04-19 12:38:50 +02:00
Emery Hemingway
82a683eccc VFS: construct file-systems using Vfs::Env object
Reduce the size and forward compatibility of VFS file-system
constructors by passing an object holding accessors for 'Genode::Env',
'Genode::Allocator', response handlers, and the root file-system.

Fix #2742
2018-04-19 12:38:27 +02:00
Martin Stein
f9af0e6f0c net: packed attribute for Icmp_packet 2018-04-10 13:03:26 +02:00
Martin Stein
ca1751528d net: utilities for DHCP parameter-request lists
Issue #2738
2018-04-10 11:20:49 +02:00
Norman Feske
9d233b73a3 nitpicker: improve 'Session::focus' handling
Nitpicker's 'Session:focus' call used to trigger a one-off focus change
at call time. This focus change did not pass the same code paths as a
focus change triggered by a "focus" ROM update, which led to
inconsistencies.

This patch changes the implementation of 'Session::focus' such that the
relationship of the caller and the focused session is preserved after
call time. Whenever the calling session is focused in the future, the
specified session will receive the focus instead. So 'Session::focus'
represents no longer a single operation but propagates the information
about the inter-session relationship. This information is taken into
account whenever the focus is evaluated regardless of how the change is
triggered.

This makes the focus handling in scenarios like the window manager more
robust.

Issue #2746
2018-04-10 11:20:47 +02:00
Martin Stein
6edf9ccf5a net: get rid of static constructors 2018-04-10 11:20:44 +02:00
Norman Feske
97317b0c95 terminal: change term caps from linux to screen
Fixes #2743
2018-04-10 11:20:43 +02:00
Martin Stein
f152e3e9d0 timeout: dequeue all pending alarms before reschedule
This fixes the problem that large timeouts, when rescheduled, are interpreted
to be from the last now_period instead of, what would be right, the next
now_period. This occured if there were multiple pending alarms at the head of
the queue and the reschedule of the first one was done with the other outdated
deadlines still in place.

Issue #2704
2018-04-10 11:11:55 +02:00
Martin Stein
bfb96536da timeout: _setup_alarm calculates deadline itself
Instead of taking the absolute deadline of a timeout as argument from
outside (where it is calculated with a freshly requested now time), we
now take a relative duration as argument and calculate the deadline with
the scheduler-internal now time (which can be a little bit outdated).
This enables us to schedule timeouts without updating the internal now time
and thereby handle all pending timeouts.

Issue #2704
2018-04-10 11:11:55 +02:00
Martin Stein
38dbd59d8a timeout: become independent of the Alarm framework
Integrate the code of the Alarm framework directly into the Timeout
framework.  The former Alarm-framework methods are all private to the
corresponding classes of the Timeout framework and get prefixed with
'_alarm__'. The latter avoids name clashes and makes it easier to
simplify the code later.

Issue #2704
2018-04-10 11:11:54 +02:00
Martin Stein
365bd347a6 net: ICMP protocol
Packet format and common utilities for the Internet Control Message
Protocol.

Issue #2732
2018-04-10 11:11:52 +02:00
Emery Hemingway
9c6b720ec1 Notification support for the VFS library
Add a new 'Vfs_watch_handle' type to the VFS interface. This handle type
will pass a handle context up through the I/O handler to the application
when a notification event occurs.

Watch support implemented for RAM and File_system plugins, all other
file-systems return WATCH_ERR_STATIC by default.

Test at run/fs_rom_update_ram and run/fs_rom_update_fs.

Fix #1934
2018-04-10 11:11:51 +02:00
Emery Hemingway
344d46ce78 Comparision operators for Genode::Path
Ref #1934
2018-04-10 11:11:51 +02:00
Emery Hemingway
8310a94843 os/path: const 'string' accessor
Ref #2160
2018-04-10 11:11:50 +02:00
Norman Feske
3778558608 os: reworked nitpicker_gfx/text_painter.h
This patch improves the `Text_painter` utility that is commonly used by
native Genode components to render text:

- Support for subpixel positioning
- Generic interface for accessing font data
- Basic UTF-8 support

Since the change decouples the font format from the 'Text_painter' and
changes the API to use the sub-pixel accurate 'Text_painter::Position'
type, all users of the utility require an adaptation.

Fixes #2716
2018-04-10 11:09:18 +02:00
Norman Feske
07cd0d5809 vfs: add 'Readonly_value_file_system'
This file system is meant as a building block for pseudo file systems
that host a directory of several small files where each corresponds to
an attribute of the pseudo file system.
2018-04-10 11:09:18 +02:00
Norman Feske
48c5707a0c vfs: relax root_dir argument of 'Dir_file_system'
By letting the 'Dir_file_system' accept an arbitrary 'File_system'
as root directory, we can use the 'Dir_file_system' as a building
block for creating other file-system types.
2018-04-10 11:09:18 +02:00
Norman Feske
b0b92e4ee2 vfs: pass root directory to plugins
This patch enables the use of the VFS from VFS plugins by passing a
reference of the root directory to the constructors of file-system
instances. Since it changes the signature of 'Vfs::Dir_file_system',
any code that uses the VFS directly requires an adaptation.

Fixes #2701
2018-04-10 11:09:17 +02:00
Norman Feske
d59d07b5e3 os: util/utf8.h for UTF-8 string handling
This patch adds a simple UTF-8 decoder at 'os/include/util/utf8.h'
along with a test at 'os/run/utf8.run'.

Fixes #2717, related to issue #2716
2018-03-27 13:44:27 +02:00
Norman Feske
579ca1063c os: support non-int coordinates in 'Point<>' 2018-03-27 13:43:09 +02:00
Emery Hemingway
013eb506a8 Vfs::Dir_file_system: do not use Vfs_handle for opening directories as files
The Dir_file_system uses static cast to convert handles from the
application to a plugin local type. For this reason, only the local
handle type may be returned from 'opendir' or 'open'. This fixes the
unexpected behavior when opening directories as files.

Fix #2533
2018-02-15 10:22:09 +01:00
Alexander Boettcher
e05a708024 os: reset packet_allocator members
Fixes #2632
2018-02-15 10:22:09 +01:00
Emery Hemingway
4a3fc21ada New watch handle mechanism for File_system session
File_system clients may now watch files and directories for changes by
opening a 'Watch_handle' rather than submitting a 'CONTENT_CHANGED'
packet to the server. When a change happens at a node with an open
Watch_handle a CONTENT_CHANGED packet will be sent from the server to
the client. This serializes registration with other handle operations
and separates I/O handle state from notification handle state.

Test at run/fs_rom_update.

Ref #1934
2018-02-14 20:41:09 +01:00
Emery Hemingway
c7d0accac0 VFS: catch Out_of_ram and Out_of_cap exceptions
Catch out of RAM and capability exceptions and return error values.
Abort opening a composite directory at Dir_file_system where an
opendir call on any child file-system returns an OUT_OF_RAM or
OUT_OF_CAPS error.

Ref #2642
2018-02-14 20:41:07 +01:00
Norman Feske
8aa1e349fc terminal session: propagate resize events
The new 'Terminal_session::size_changed_sigh' RPC function registers a
signal handler that is triggered each time when the terminal size
changes. It enables the client to adjust itself to the new size by
subsequently calling the 'size' RPC function. Of all terminal servers,
only the graphical terminal triggers this signal.
2018-02-14 20:41:03 +01:00
Norman Feske
96a068f90a terminal: improve internal structure
This patch reorganizes the terminal's source code to become easier to
extend. It also enables the strict warning level.
2018-02-09 14:04:32 +01:00
Christian Prochaska
12c8e51071 terminal fixes
- handle line wraps in 'ech()'
- take (1,1) origin into account in 'hpa()' and 'vpa()'
- unify handling of SGR escape sequences of different lengths
- accept the '[?2004h' and '[?2004l' escape sequences (used by midnight commander)

Fixes #2671
2018-02-09 14:04:25 +01:00
Norman Feske
66a93d9199 os: add 'Expanding_reporter' to os/reporter.h
The 'Expanding_reporter' wrapper for the 'Reporter' eliminates
the burden of handling 'Xml_generator::Buffer_exceeded' exceptions
from components that generate reports.

Fixes #2655
2018-02-09 14:04:06 +01:00
Norman Feske
cde8163770 os: make 'Buffered_xml' util publicly available
The 'Buffered_xml' utility is used by three components and a fourth is
on the way. To avoid another duplication of the code, this patch makes
it publicly available at 'os/buffered_xml.h'.
2018-02-09 13:34:17 +01:00
Josef Söntgen
4009239328 vfs: skip synced file systems in complete_sync
Fixes #2606.
2018-01-17 12:14:43 +01:00