C++ (Cpp) flask_load Examples

Example #1

File: flask.c Project: avasani/modified-xen

static PyObject *pyflask_load(PyObject *self, PyObject *args, PyObject *kwds)
{
    int xc_handle;
    char *policy;
    uint32_t len;
    int ret;

    static char *kwd_list[] = { "policy", NULL };
  
    if( !PyArg_ParseTupleAndKeywords(args, kwds, "s#", kwd_list, &policy, &len) )
        return NULL;

    xc_handle = xc_interface_open();
    if (xc_handle < 0) {
        errno = xc_handle;
        return PyErr_SetFromErrno(xc_error_obj);
    }

    ret = flask_load(xc_handle, policy, len);

    xc_interface_close(xc_handle);

    if ( ret != 0 ) {
        errno = -ret;
        return PyErr_SetFromErrno(xc_error_obj);
    }

    return Py_BuildValue("i", ret);
}

Example #2

File: loadpolicy.c Project: Angel666/android_hardware_intel

int main (int argCnt, const char *args[])
{
    const char *polFName;
    int polFd = 0;
    void *polMem = NULL;
    void *polMemCp = NULL;
    struct stat info;
    int ret;
    xc_interface *xch = 0;

    if (argCnt != 2)
        usage(argCnt, args);

    polFName = args[1];
    polFd = open(polFName, O_RDONLY);
    if ( polFd < 0 )
    {
        fprintf(stderr, "Error occurred opening policy file '%s': %s\n",
                polFName, strerror(errno));
        ret = -1;
        goto cleanup;
    }
    
    ret = stat(polFName, &info);
    if ( ret < 0 )
    {
        fprintf(stderr, "Error occurred retrieving information about"
                "policy file '%s': %s\n", polFName, strerror(errno));
        goto cleanup;
    }

    polMemCp = malloc(info.st_size);

#ifdef USE_MMAP
    polMem = mmap(NULL, info.st_size, PROT_READ, MAP_SHARED, polFd, 0);
    if ( !polMem )
    {
        fprintf(stderr, "Error occurred mapping policy file in memory: %s\n",
                strerror(errno));
        ret = -1;
        goto cleanup;
    }

    xch = xc_interface_open(0,0,0);
    if ( !xch )
    {
        fprintf(stderr, "Unable to create interface to xenctrl: %s\n",
                strerror(errno));
        ret = -1;
        goto cleanup;
    }

    memcpy(polMemCp, polMem, info.st_size);
#else
    ret = read(polFd, polMemCp, info.st_size);
    if ( ret < 0 )
    {
        fprintf(stderr, "Unable to read new Flask policy file: %s\n",
                strerror(errno));
        goto cleanup;
    }
    else
    {
        printf("Read %d bytes from policy file '%s'.\n", ret, polFName);
    }
#endif

    ret = flask_load(xch, polMemCp, info.st_size);
    if ( ret < 0 )
    {
        errno = -ret;
        fprintf(stderr, "Unable to load new Flask policy: %s\n",
                strerror(errno));
        ret = -1;
        goto cleanup;
    }
    else
    {
        printf("Successfully loaded policy.\n");
    }

done:
    if ( polMemCp )
        free(polMemCp);
    if ( polMem )
    {
        ret = munmap(polMem, info.st_size);
        if ( ret < 0 )
            fprintf(stderr, "Unable to unmap policy memory: %s\n", strerror(errno));
    }
    if ( polFd )
        close(polFd);
    if ( xch )
        xc_interface_close(xch);

    return ret;

cleanup:
    goto done;
}