NAT: G/c ancient abandoned VBOX_WITH_SLIRP_BSD_SBUF experiment.

NAT: G/c socket:so_la - per-socket libalias instance used for port-forwarding - and concomitant code. It is never actually used as PACKET_TAG_ALIAS that is supposed to select it is never set. Its LibAliasRedirectPort() arguments were wrong too.

NAT: tcp_respond - don't split window size computation into two chunks at the opposite ends of the function.

header (C) fixes

NAT: TCB releasing on ''slirp_link_down''. (no more assertions on shutdown, not tested)

NAT: Don't spend time on connections with uninitiolized template.

NAT: libalias closes self sockets, and Slirp inform libalias in case it closes its socket.

NAT: verification that sockets always stay on right queues.

NAT: warnings [-Wunused-macros]

NAT: warnings [-Wunused-but-set-variable]

NAT: warnings + NAT/netservice fixes.

NAT: warnings.

NAT: logs.

NAT: tracing tcp machine state change.

NAT: (debug) logging fixes

NAT: BSD sbuf.

NAT: clean up.

Automated rebranding to Oracle copyright/license strings via filemuncher

refined r60215

NAT: nuke dead code.

NAT: nuke dead code.

NAT: slirp file headers

NAT: tcp_close filter out listening sockets while freeing socket buffers, where we don't allocate socket buffers. sofree asserts if sbuf is already freed (freed and assigned with NULL value) or NULL.

*: whitespace cleanups by scm and two manually picked nits.

NAT: FD_CLOSE(win) and POLLHUB(Unix) events are processed in common way. Darwin specific in handling closing connection was added.

NAT: -Wshadow fixes. Use ''RT_N2H'' and ''RT_H2N'' instead of ''ntoh'' and ''hton'' because the latter trigger this warning as well.

NAT: xtracker 4583: hopefully fix 100% CPU load with NAT under certain circumstances

NAT: coding style

NAT: small cosmetics, trailing spaces

NAT: burn fix (typo).

NAT: missed header initialization.

NAT: BSD mbuf

NAT: hide away dhcp internals, adds helper lookups functions

NAT: clearing (removing non-libalias code)

NAT: remove (and enable) ''VBOX_WITH_MULTI_DNS'' and ''VBOX_WITH_SLIRP_DNS_PROXY'' ifdefs as both were properly tested with VBox 2.2.x

NAT: TOS is disabled

NAT: Backed 48735

NAT: TOS is disabled in libalias environment

NAT: tcp_nodelay off

NAT: introduce slirp's interface to configure socket's and sbuf defaults

NAT: fixed buffer in 64kB

NAT/libalias: port-forwarding

NAT: LibAlias enabling + tcp_emu replaced with ftp_module

NAT: slirp servicing several guests

spaces

NAT: non-blocks + socket creation error handling

NAT:warnings (unreferenced)

NAT:warnings

NAT: memset(,0,) => RTMemAllocZ

NAT:NSOK_INC/DEC added to count sockets number for allocation enough pollfd buffer (and latter epoll_event (for Linux only)).

NAT: cosmetics

NAT:port-forwarding: Default value for SND/RCV buffers increased 4x

NAT:MT connection closing is working now

NAT:MT improvements

NAT: multi threading. Introduces set of macroces to use locking/unlocking/creating/destroing mutexes Also every socket enqueueing is accomponement with lock creation (it doen't work yet, compilable on Windows don't know about Linux)

NAT: 1. DNS several DNS servers could be passed to guest now (with VBOX_WITH_MULTI_DNS) 2. on host server (if it registered) aliased with CTL_ALIAS, there are no reason use CTL_DNS for this puposes anymore, instead it could be used for built-in DNS if it will require.

coding style

NAT: 2nd patch from lawrencerust. Corrects the behaviour of PORT command handling and PASV response.

NAT:fix #3480

NAT: RTMemFree

NAT: malloc/free/realloc/strdup => iprt functions; fixed VBOX_WITH_SLIRP_MEMORY_CHECK

slirp: removed the old 64-bit incompatible reassemble code

slirp: style, dead code

slirp: style + comments

slirp: better readability

NAT: some reformatting for better readability; merged VBOX_WITH_BSD_TCP_REASS with VBOX_WITH_BSD_REASS

ipovly now conform modern BSD making ih_x1 field as array overlapping ih_{next, prev} fixing r39862 on 64-bit

removed unused global tcbhead

slirp: remove tabs

slirp: removed dead code

slirp: removed unused control interface; added `slirp_get_timeout_ms()`

#else /* what comes now */

freeing of reassembly close on end of TCP connection was added to tcp_close routine

code style

constants initialization for TCP reassembly

heade of list of TCPCB was added and initialization code was injected

TCP reassembling (compilable, but not working version)

switching to one event for all sockets

registration several sockets per event, to avoid artificial barrier with WSA_MAXIMUM_WAIT_EVENTS (64). Currently registered 64 sockets per event. should work fine ;)

- simplefied syncronization - work on Unixes only

fixed win build for 38966

backed out r38966

pseudo-timers moved to timers polling select is notified via pipe (!!! on UNIX) about attaching new socket (to make it sleeping rather then polling) writing part of slirp_select _fill/_poll are called on drvNATSend pessimistic queue locking is in process to be tollerant to heavy model and to polling-less Slirp functioning

per-socket and per-mbuf mutexes are removed only global locks are stayin on their places

removing extra if/ifndefs introduced defered socket removing, to prevent deletion of socket being in lock

The rest of macro replacment was added

TCP sync was intoducedTCP sync was intoduced

Resolved locks in UDP Some mutex operations checked with AssertReleaseRC Still TCP part need to be re-checked udb_mutex now used only for controlling pData->udb and udp_last_so controlled by udp_last_so_mutex

slirp:typo

Synchronized slirp was inroduced

slirp: make it possible to configure the netmask

Make sure DNS forwarding address is kept current. It can change at runtime.

Removed tons of ifdef VBOX conditionals to make slirp readable again

silly typo

slirp insque/remque fixes for amd64

Attempt to fix slirp build for 64 bit (also eliminated global variables)

Big change to make slirp fully instantiatable (replace all global variables with local ones, passing a reference to the state/config structure to all places which are interested). You can now have as many cards in the guest configured for NAT networking as you want.

Same typo.

Hack for running slirp (NAT) on 64-bit hosts.

upstream: set TCP_NODELAY option

import