1 //---------------------------------------------------------------------- 2 // This software is part of the OpenBeOS distribution and is covered 3 // by the OpenBeOS license. 4 // 5 // Copyright (c) 2003 Waldemar Kornewald, Waldemar.Kornewald@web.de 6 //--------------------------------------------------------------------- 7 8 #include <KPPPLayer.h> 9 10 #include <cstdlib> 11 #include <cstring> 12 #include <core_funcs.h> 13 14 #ifdef _KERNEL_MODE 15 #include <kernel_cpp.h> 16 #endif 17 18 19 PPPLayer::PPPLayer(const char *name, ppp_level level, uint32 overhead) 20 : fInitStatus(B_OK), 21 fOverhead(overhead), 22 fLevel(level), 23 fNext(NULL) 24 { 25 if(name) 26 fName = strdup(name); 27 else 28 fName = strdup("Unknown"); 29 } 30 31 32 PPPLayer::~PPPLayer() 33 { 34 free(fName); 35 } 36 37 38 status_t 39 PPPLayer::InitCheck() const 40 { 41 return fInitStatus; 42 } 43 44 45 status_t 46 PPPLayer::SendToNext(struct mbuf *packet, uint16 protocolNumber) const 47 { 48 // Find the next possible handler for this packet. 49 // Normal protocols (Level() >= PPP_PROTOCOL_LEVEL) do not encapsulate anything. 50 if(Next()) { 51 if(Next()->IsAllowedToSend() && Next()->Level() < PPP_PROTOCOL_LEVEL) 52 return Next()->Send(packet, protocolNumber); 53 else 54 return Next()->SendToNext(packet, protocolNumber); 55 } else { 56 m_freem(packet); 57 return B_ERROR; 58 } 59 } 60 61 62 void 63 PPPLayer::Pulse() 64 { 65 // do nothing by default 66 } 67