VBoxNetDHCP: Drag kicking and screaming VBoxNetDhcp::m_DhcpServer to NetworkManager::processParameterReqList() so that we can interrorgate it about DHCP options configured via API (though don't do it just yet).

VBoxNetDHCP: keep a pointer to NetworkManager instead of using a global. To minimize churn, convert that global into a singleton. No functional change intended.

NetworkServices/DHCP: use Utf8Str

spaces

VBoxNetDHCP:Config.h: G/c trailing white spaces.

VBoxNetDHCP:Config.h G/c -lines.

VBoxNetDHCP: Leases shouldn't cache settings which are could be changed at run-time, e.g. DNS settings.

VBoxNetDHCP/Config.h uses shared declaration of "<" operator.

VBoxNetBaseService hides all details of internal network implementation and become responsible for supporting receiving loop. Notification of children are done via introduced interface: virtual int processFrame(void *, size_t) = 0; virtual int processGSO(PCPDMNETWORKGSO, size_t) = 0; virtual int processUDP(void *, size_t) = 0; processFrame() and processGSO() might return VERR_IGNORED, to inform base service switch to processUDP() (e.g. for DHCP needs)

DHCP: hides implementations requiring internals of ClientData from Client and Lease classes (warning: -Wdelete-incomplete).

DHCP/NetworkManager: visibility (ack,nak, offer4Client) from public to private.

DHCP: G/c lines.

DHCP/Config.h reverts occidental commit in r90758.

DHCP/VBoxNetDHCP.cpp: G/c unused declarations.

DHCP: first-level DHCP request packet processing moved to NetworkManager class. warning [-Wdelete-incomplete].

VBoxNetDHCP/Config.h: license header.

DHCP/NetworkManager hides internals in implementation.

NetServices/DHCP: XML lease serialization/deserialization.

NetworkService/DHCP: refactoring: 1. Client and Lease are use shared data. 2. data moved to closer to implementations and accessible via accessors.

VboxNetDHCP: Lease: hides fields to internal data-structure and expose accessor functions. Lease: wasn't intended to be a base class. drop "virtual" from dtor.

VBoxNetDHCP/Config.h: warnings [-Wunused-parameter]

NetworkServices: Whitespace (including tabs!) and svn:keywords cleanups by scm.

DHCP/Config.h: clean up. grouping data and functions.

DHCP: nukes extra lines.

DHCP + lwip_nat: Domain Name passing on demand.

ConfigEntity::ConfigEntity: init m_u32ExpirationPeriod

DHCP: moves implementation from header to source file.

VBoxNetDHCP: removes session handling. binding and lease expiration control was added.

previous r87050, was re-commit of r86970 DHCP becomes Main client, internals changed to let more flexible managment and describing more complex networks (current state, so it should not brake a lot things, but something could stop working). more stuff moved to BaseNetworkService class. and r87051 nukes trailing whitespaces.

NetworkServices/

backed out r86967,r86968,r86969,r86970,r86971,r86972,r86973,r86975,r86976. will fix build locally.

NetworkService/DHCP: missed Config.h