Diff: sdp/sdp.h

Revision:

0:003889bc474f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sdp/sdp.h	Sat Dec 07 14:19:00 2013 +0000
@@ -0,0 +1,186 @@
+#ifndef SDP_H
+#define SDP_H
+#include "AvailableMemory.h"
+#include "sdp_data.h"
+#include <map>
+#define OFFSET  8
+
+class SDPManager;
+extern SDPManager SDP;
+typedef map<unsigned short, sdp_data*> serv_rec;
+
+void attribHandler(serv_rec *r);
+unsigned parseUUID(const u8* data, int len, unsigned &p);
+unsigned length(const unsigned char *el, unsigned &p);
+unsigned getval(const unsigned char *p, int n) ;
+void errorhandler(unsigned err);//default error handler
+
+
+class SDPHandler: public SocketHandler {
+//    int _l2cap;
+    int sdp_socket;
+    unsigned char l2cap_buf[100+OFFSET];
+    unsigned char* buf;
+    unsigned txid;
+    unsigned char contState[17];//maximum size, in practive it is 3
+    unsigned char *contBuf;
+    unsigned byteCount;
+    int _state;
+    sdp_data *tree;//root of the entire service tree
+    map<unsigned, serv_rec*> services;//the set of supported services <handle, service>
+    map<unsigned, serv_rec*>::iterator index;
+//server properties
+//    static map<unsigned, serv_rec*> server;
+//    static int serverSock;
+public:
+    SDPHandler();
+    void Clear();
+    virtual int Open(SocketInternal* sock, SocketAddrHdr* addr);
+//    virtual int Accept(SocketInternal *sock, int scid, int rxid); //called indirectly from BTDevice::Control
+    virtual int Send(SocketInternal* sock, const u8* data, int len);
+    virtual int Close(SocketInternal* sock);
+    virtual char* Name() {
+        return "SDPHandler SocketHandler";
+    }
+    void OnSdpRsp(const u8* data, int len);
+    static void OnSdpRsp(int socket, SocketState state, const u8* data, int len, void* userData);
+
+    //this function is called when the SDP sockets receives data (see HCICallback in TestShell),
+    //currently does not happen because not forwarded from OnSdpRsp, can be used to handle multiple connections
+    static void OnSockCallback(int socket, SocketState state, const u8* data, int len, void* userData) ;
+    //The SDP server is stateless hence can be static
+//    static void SDPServer(int socket, SocketState state, const u8* data, int len, void* userData) ;
+
+    void (*ErrorResponse)(unsigned) ;
+    void (*ServiceSearchResponse)() ;
+    void (*ServiceAttributeResponse)(serv_rec*) ;
+    void (*ServiceSearchAttributeResponse)() ;
+    int ServiceSearchRequest(sdp_data *sp, unsigned count, unsigned cs=0);
+    int ServiceAttributeRequest(unsigned handle, unsigned count, sdp_data* al, unsigned cs=0) ;
+    int ServiceSearchAttributeRequest(sdp_data *sp, unsigned count, sdp_data* al, unsigned cs=0);
+//server
+//    static int ServiceSearchAttributeReply(unsigned rxid, sdp_data* al, unsigned count, unsigned cs=0);
+private:
+//    static unsigned length(const unsigned char *el, unsigned &p);
+//    static unsigned getval(const unsigned char *p, int n) ;
+//    static unsigned parseUUID(const u8* data, int len, unsigned &p);
+    unsigned parse (const unsigned char *el, unsigned count, sdp_data* &result, serv_rec* &record) ;
+    unsigned parseLight (const unsigned char *el, unsigned count, sdp_data* &result, serv_rec* &record) ;
+    int parseRsp(const unsigned char*rsp, int len) ;
+    void append(const unsigned char*rsp, int len) ;
+    void freeBuf();
+};
+/*
+class SDPClient: public SDPHandler {
+};
+
+class SDPServer: public SDPHandler {
+};
+*/
+class SDPManager: public SocketHandler {
+    map<int, SDPHandler*> handlers;
+//server properties
+//    SDPHandler *Server;
+    static map<unsigned, serv_rec*> server;
+    static int serverSock;
+    bool once;
+public:
+    SDPManager() {
+        once = true;
+    }
+    virtual int Open(SocketInternal* sock, SocketAddrHdr* addr) {
+        printf("SDPManager::Open(sock (ID=%d, type=%d), addr): should not be called\n", sock->ID, sock->Type);
+        return sock->ID;//((SDPHandler*)sock->userData)->Open(sock, addr);
+    }
+    int Open(SocketAddrHdr* addr) {
+        L2CAPAddr* ad = (L2CAPAddr*)addr;
+        ad->psm = L2CAP_PSM_SDP;//open the l2cap channel
+        SDPHandler *h = new SDPHandler;
+        int s = Socket_Open(SOCKET_L2CAP, addr, &SDPHandler::OnSdpRsp, h);
+        handlers[s] = h;
+        return s;
+    }
+    virtual int Accept(SocketInternal *sock, int scid, int rxid) { //called indirectly from BTDevice::Control
+        if (once) {
+            once = false;
+            buildServer();//build the DB on the first connection
+        }
+        //sock is registered as an SDP sock but we use it as an L2CAP sock
+        //type=SDP
+        //userData = BTDevice
+        //Internal = L2CAPSocket
+        BTDevice *l2cap = (BTDevice*)sock->userData;
+        //sock->dcid = scid
+        //sock->scid = something based on sock->ID
+        serverSock = sock->ID;
+        printf("Invoking accept on %p (%s) for sock %d and scid=%d\n", l2cap, l2cap->Name(), sock->ID, scid);
+        return l2cap->Accept(sock, scid, rxid);
+    }
+    virtual int Send(SocketInternal* sock, const u8* data, int len) {//called by the server
+        BTDevice *l2cap = (BTDevice*)sock->userData;
+        return l2cap->Send(sock, data, len);
+    }
+    virtual int Close(SocketInternal* sock) {
+        printf("SDPManager::Close() closing  socket %d\n", sock->ID);
+        SDPHandler *h = handlers[sock->ID];
+        int retval = h->Close(sock);
+        delete h;
+        handlers[sock->ID] = 0;
+        return retval;
+    }
+    void Destroy(int s) {
+        printf("Deleting handler for socket %d\n", s);
+        delete handlers[s];
+        handlers[s] = 0;
+    }
+    virtual char* Name() {
+        return "SDPManager SocketHandler";
+    }
+    //void OnSdpRsp(const u8* data, int len);
+    static void OnSdpRsp(int socket, SocketState state, const u8* data, int len, void* userData) {
+        printf("SDPManager::OnSdpRsp(socket %d, state %d, len %d)\n", socket, state, len);
+    }
+    //The SDP server is (almost) stateless hence can be static
+    static void SDPServer(int socket, SocketState state, const u8* data, int len, void* userData) ;
+    static void match(bool elig[], unsigned uuid);
+    static bool isInList(unsigned short id, const unsigned char* list, int end);
+    static void addToReply(sdp_data *svc, serv_rec *list, const unsigned char* att, int end);
+    static int findUUID(unsigned h, unsigned uuid);
+    void buildServer();
+    static int ServiceSearchReply(unsigned rxid, unsigned *handles, unsigned count, unsigned cs=0);
+    static int ServiceAttributeReply(unsigned rxid, sdp_data* al, unsigned count, unsigned cs=0);
+    static int ServiceSearchAttributeReply(unsigned rxid, sdp_data* al, unsigned count, unsigned cs=0);
+    /*
+        //this function is called when the SDP sockets receives data (see HCICallback in TestShell),
+        //currently does not happen because not forwarded from OnSdpRsp, can be used to handle multiple connections
+        static void OnSockCallback(int socket, SocketState state, const u8* data, int len, void* userData) ;
+
+        static void errorhandler(unsigned err);
+
+        void (*ErrorResponse)(unsigned) ;
+        void (*ServiceSearchResponse)() ;
+        void (*ServiceAttributeResponse)(serv_rec*) ;
+        void (*ServiceSearchAttributeResponse)() ;
+        int ServiceSearchRequest(sdp_data *sp, unsigned count, unsigned cs=0);
+        int ServiceAttributeRequest(unsigned handle, unsigned count, sdp_data* al, unsigned cs=0) ;
+        int ServiceSearchAttributeRequest(sdp_data *sp, unsigned count, sdp_data* al, unsigned cs=0);
+    //server
+    private:
+        static unsigned length(const unsigned char *el, unsigned &p);
+        static unsigned getval(const unsigned char *p, int n) ;
+        static unsigned parseUUID(const u8* data, int len, unsigned &p);
+        static void addAttrib(unsigned h, unsigned short id, sdp_data *attrib);
+        static void addIndex(unsigned h, unsigned uuid);
+        static int findUUID(unsigned h, unsigned uuid);
+        static void match(bool elig[], unsigned uuid);
+        static bool isInList(unsigned short id, const unsigned char* list, int end);
+        void buildServer();
+        unsigned parse (const unsigned char *el, unsigned count, sdp_data* &result, serv_rec* &record) ;
+        unsigned parseLight (const unsigned char *el, unsigned count, sdp_data* &result, serv_rec* &record) ;
+        int parseRsp(const unsigned char*rsp, int len) ;
+        void append(const unsigned char*rsp, int len) ;
+        void freeBuf();
+    */
+};
+
+#endif
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