qtransportauthdefs_qws.h

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#ifndef QTRANSPORTAUTHDEFS_QWS_H
#define QTRANSPORTAUTHDEFS_QWS_H

#include <sys/types.h>
#include <string.h>

#include <QtCore/qglobal.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#define QSXE_KEY_LEN 16
#define QSXE_MAGIC_BYTES 4

// Number of bytes of each message to authenticate.  Just need to ensure
// that the command at the beginning hasn't been tampered with.  This value
// does not matter for trusted transports.
#define AMOUNT_TO_AUTHENTICATE 200

#define AUTH_ID(k) ((unsigned char)(k[QSXE_KEY_LEN]))
#define AUTH_KEY(k) ((unsigned char *)(k))

// must be a largish -ve number under any endianess when cast as an int
const unsigned char magic[QSXE_MAGIC_BYTES] = { 0xBA, 0xD4, 0xD4, 0xBA };
const int magicInt = 0xBAD4D4BA;

#define QSXE_KEYFILE "keyfile"

/*
  Header in above format, less the magic bytes.
  Useful for reading off the socket
*/
struct AuthHeader
{
    unsigned char len;
    unsigned char pad;
    unsigned char digest[QSXE_KEY_LEN];
    unsigned char id;
    unsigned char seq;
};

/*
  Header in a form suitable for authentication routines
*/
struct AuthMessage
{
    AuthMessage()
    {
        ::memset( authData, 0, sizeof(authData) );
        ::memcpy( pad_magic, magic, QSXE_MAGIC_BYTES );
    }
    unsigned char pad_magic[QSXE_MAGIC_BYTES];
    union {
        AuthHeader hdr;
        char authData[sizeof(AuthHeader)];
    };
    char payLoad[AMOUNT_TO_AUTHENTICATE];
};

struct AuthCookie
{
    unsigned char key[QSXE_KEY_LEN];
    unsigned char pad;
    unsigned char progId;
};

/*
  Auth data as written to the key file - SUPERSEDED by usr_key_entry

  This is still used internally for some functions, ie the socket
  related calls.
*/
struct AuthRecord
{
    union {
        AuthCookie auth;
        char data[sizeof(struct AuthCookie)];
    };
    time_t change_time;
};

struct usr_key_entry
{
    char key[QSXE_KEY_LEN];
    ino_t ino;
    dev_t dev;
};


struct IdBlock
{
    quint64 inode;
    quint64 device;
    unsigned char pad;
    unsigned char progId;
    unsigned short installId;
    unsigned int keyOffset;
    qint64 install_time;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QTRANSPORTAUTHDEFS_QWS_H