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2020-06-02Kernel: Allow File::close() to failSergey Bugaev
And pass the result through to sys$close() return value. Fixes https://github.com/SerenityOS/serenity/issues/427
2020-05-29Kernel: Pass a FileDescription to File::chmod() and File::chown()Sergey Bugaev
We're going to make use of it in the next commit. But the idea is we want to know how this File (more specifically, InodeFile) was opened in order to decide how chown()/chmod() should behave, in particular whether it should be allowed or not. Note that many other File operations, such as read(), write(), and ioctl(), already require the caller to pass a FileDescription.
2020-05-23Kernel: Use a FlatPtr for the "argument" to ioctl()Andreas Kling
Since it's often used to pass pointers, it should really be a FlatPtr.
2020-05-16Kernel: Absorb LibBareMetal back into the kernelAndreas Kling
This was supposed to be the foundation for some kind of pre-kernel environment, but nobody is working on it right now, so let's move everything back into the kernel and remove all the confusion.
2020-05-16Kernel: Remove dubious use of "volatile" in E1000 adapter driverAndreas Kling
2020-04-28Kernel: Be a little more defensive when indexing E1000 Rx/Tx buffersAndreas Kling
2020-04-28Kernel: Add Region helpers for accessing underlying physical pagesAndreas Kling
Since a Region is basically a view into a potentially larger VMObject, it was always necessary to include the Region starting offset when accessing its underlying physical pages. Until now, you had to do that manually, but this patch adds a simple Region::physical_page() for read-only access and a physical_page_slot() when you want a mutable reference to the RefPtr<PhysicalPage> itself. A lot of code is simplified by making use of this.
2020-04-18Kernel: Use shared locking mode in some placesSergey Bugaev
The notable piece of code that remains to be converted is Ext2FS.
2020-04-11Kernel: Instantiate network adapters in their own detect() methodsLiav A
This commit is one step forward for pluggable driver modules. Instead of creating instances of network adapter classes, we let their detect() methods to figure out if there are existing devices to initialize.
2020-04-10Kernel: Add explicit offset parameter to File::read etcConrad Pankoff
2020-04-09Kernel: Move NetworkTask startup into NetworkTask::spawn()Andreas Kling
2020-04-08Kernel: Remove an unnecessary layer of indirection in the PCI codeAndreas Kling
The PCI access layer was composed of a bunch of virtual functions that did nothing but call other virtual functions. The first layer was never overridden so there was no need for them to be virtual. This patch removes the indirection and moves logic from PCI::Access down into the various PCI::get_foo() helpers that were the sole users.
2020-04-06Kernel/Net: make setsockopt pretend it understands SO_KEEPALIVE.Xiao NuoFu
2020-04-05Kernel: Add the SO_BINDTODEVICE socket optionAnotherTest
This patch adds a way for a socket to ask to be routed through a specific interface. Currently, this option only applies to sending, however, it should also apply to receiving...somehow :^)
2020-04-05Kernel+AK: Separate out MACAddress and move it into AKAnotherTest
2020-04-04Kernel: Do not reject broadcast UDP packets right awayAnotherTest
This patch relaxes how we think about UDP packets being "for us" a bit; the proper way to handle this would be to also check if the matched socket has SO_BROADCAST set, but we don't have that :)
2020-04-02Kernel: Send Fragmented IPv4 packets if payload size > mtuAnotherTest
This adds IPv4 fragmentation, so now we can send huuuuuuge packets properly.
2020-03-24Kernel: Limit IRQ rate within E1000 network adapterLiav A
This is not a complete fix, since spurious IRQs under heavy loads can still occur. However, this fix limits the amount of spurious IRQs. It is encouraged to provide a better fix in the future, probably something that takes into account handling of PCI level-triggered interrupts.
2020-03-24Kernel: Enable IRQs before sending commands to the E1000 adapterLiav A
This change prevents a race condition, in which case we send a command and we are losing an interrupt.
2020-03-22Kernel: Run clang-format on filesShannon Booth
Let's rip off the band-aid
2020-03-19Kernel: Use a const reference to RegisterState in IRQ handlingLiav A
2020-03-15Userland: ifconfig can change the IP address of the default gatewaymarprok
ioctl can now perform a request for a specific route and change the address of it's default gateway.
2020-03-11Userland: Set the mask of a network adapter with ifconfig (#1388)Marios Prokopakis
A new IP address or a new network mask can be specified in the command line arguments of ifconfig to replace the old values of a given network adapter. Additionally, more information is being printed for each adapter.
2020-03-09PCI: Enable LogStream output for addressesLiav A
2020-03-08Kernel: Ensure RTL8139NetworkAdapter uses virtual memory correctlyLiav A
2020-03-08Kernel: Ensure E1000NetworkAdapter uses virtual memory correctlyLiav A
2020-03-08AK: Add global FlatPtr typedef. It's u32 or u64, based on sizeof(void*)Andreas Kling
Use this instead of uintptr_t throughout the codebase. This makes it possible to pass a FlatPtr to something that has u32 and u64 overloads.
2020-03-07IPv4: Keep IPv4 socket locked during receive operationsAndreas Kling
We unlock/relock around blocking, but outside of that we now keep the socket locked. This fixes an intermittent ASSERT(m_can_read) failure.
2020-03-06Kernel: Change HandlerPurpose to HandlerTypeLiav A
Also, GenericInterruptHandler class requires to implement two new methods.
2020-03-02Kernel: Use klog() instead of kprintf()Liav A
Also, duplicate data in dbg() and klog() calls were removed. In addition, leakage of virtual address to kernel log is prevented. This is done by replacing kprintf() calls to dbg() calls with the leaked data instead. Also, other kprintf() calls were replaced with klog().
2020-03-02Kernel: Use IOAddress class in Network adapters' driversLiav A
Also, kprintf() calls were replaced with klog() calls.
2020-03-01Kernel: Remove some unnecessary .characters() when doing dbg()<<StringAndreas Kling
2020-02-27E1000NetworkAdapter: Use dbg() instead of dbgprintf()Liav A
2020-02-27LoopbackAdapter: Use dbg() instead of dbgprintf()Liav A
2020-02-27IPv4Socket: Use dbg() instead of dbgprintf()Liav A
2020-02-25AK: Make Vector use size_t for its size and capacityAndreas Kling
2020-02-24Kernel: Change get_pci_address() to pci_address() in PCI::Device classLiav A
The Serenity Coding Style tends to not accept the word "get" in methods' names if possible.
2020-02-24Kernel: Update Network adapter classes to use the PCI::Device classLiav A
Those classes will inherit from the PCI::Device class, thus, they can still implement IRQ handling.
2020-02-17Kernel: Replace "current" with Thread::current and Process::currentAndreas Kling
Suggested by Sergey. The currently running Thread and Process are now Thread::current and Process::current respectively. :^)
2020-02-16Kernel: More header dependency reduction workAndreas Kling
2020-02-16Kernel: Reduce header dependencies of MemoryManager and RegionAndreas Kling
2020-02-16Kernel: Move all code into the Kernel namespaceAndreas Kling
2020-02-10AK: Remove bitrotted Traits::dump() mechanismAndreas Kling
This was only used by HashTable::dump() which I used when doing the first HashTable implementation. Removing this allows us to also remove most includes of <AK/kstdio.h>.
2020-02-09Kernel: Apply changes to use LibBareMetal definitionsLiav A
2020-02-09Net: Short-circuit routing to the IPv4 address of a local adapterAndreas Kling
This makes it possible to open http://localhost:8000/ in Browser. :^)
2020-02-09Net: When routing to loopback, use the loopback adapter's MAC addressAndreas Kling
Otherwise the routing decision gets interpreted as "host unreachable."
2020-02-09Net: Give the LoopbackAdapter a MAC addressAndreas Kling
Since the routing code currently interprets an all-zero MAC address as an invalid next hop, let's give the loopback adapter an address.
2020-02-08IPv4: Put some TCP close handshake debug spam behind TCP_SOCKET_DEBUGAndreas Kling
2020-02-08IPv4: Sockets should say can_read() after reading is shut downAndreas Kling
This allows clients to get their EOF after shutting down reading.
2020-02-08IPv4: Basic implementation of TCP socket shutdownAndreas Kling
We can now participate in the TCP connection closing handshake. :^) This implementation is definitely not complete and needs to handle a bunch of other cases. But it's a huge improvement over not being able to close connections at all. Note that we hold on to pending-close sockets indefinitely, until they are moved into the Closed state. This should also have a timeout but that's still a FIXME. :^) Fixes #428.
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