int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
void *data)
{
struct gssx_res_accept_sec_context *res = data;
u32 value_follows;
int err;
struct page *scratch;
scratch = alloc_page(GFP_KERNEL);
if (!scratch)
return -ENOMEM;
xdr_set_scratch_buffer(xdr, page_address(scratch), PAGE_SIZE);
/* res->status */
err = gssx_dec_status(xdr, &res->status);
if (err)
goto out_free;
/* res->context_handle */
err = gssx_dec_bool(xdr, &value_follows);
if (err)
goto out_free;
if (value_follows) {
err = gssx_dec_ctx(xdr, res->context_handle);
if (err)
goto out_free;
} else {
res->context_handle = NULL;
}
/* res->output_token */
err = gssx_dec_bool(xdr, &value_follows);
if (err)
goto out_free;
if (value_follows) {
err = gssx_dec_buffer(xdr, res->output_token);
if (err)
goto out_free;
} else {
res->output_token = NULL;
}
/* res->delegated_cred_handle */
err = gssx_dec_bool(xdr, &value_follows);
if (err)
goto out_free;
if (value_follows) {
/* we do not support upcall servers sending this data. */
err = -EINVAL;
goto out_free;
}
/* res->options */
err = gssx_dec_option_array(xdr, &res->options);
out_free:
__free_page(scratch);
return err;
}
int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct gssx_res_accept_sec_context *res)
{
u32 value_follows;
int err;
/* res->status */
err = gssx_dec_status(xdr, &res->status);
if (err)
return err;
/* res->context_handle */
err = gssx_dec_bool(xdr, &value_follows);
if (err)
return err;
if (value_follows) {
err = gssx_dec_ctx(xdr, res->context_handle);
if (err)
return err;
} else {
res->context_handle = NULL;
}
/* res->output_token */
err = gssx_dec_bool(xdr, &value_follows);
if (err)
return err;
if (value_follows) {
err = gssx_dec_buffer(xdr, res->output_token);
if (err)
return err;
} else {
res->output_token = NULL;
}
/* res->delegated_cred_handle */
err = gssx_dec_bool(xdr, &value_follows);
if (err)
return err;
if (value_follows) {
/* we do not support upcall servers sending this data. */
return -EINVAL;
}
/* res->options */
err = gssx_dec_option_array(xdr, &res->options);
return err;
}
static int gssx_dec_ctx(struct xdr_stream *xdr,
struct gssx_ctx *ctx)
{
__be32 *p;
int err;
/* ctx->exported_context_token */
err = gssx_dec_buffer(xdr, &ctx->exported_context_token);
if (err)
return err;
/* ctx->state */
err = gssx_dec_buffer(xdr, &ctx->state);
if (err)
return err;
/* ctx->need_release */
err = gssx_dec_bool(xdr, &ctx->need_release);
if (err)
return err;
/* ctx->mech */
err = gssx_dec_buffer(xdr, &ctx->mech);
if (err)
return err;
/* ctx->src_name */
err = gssx_dec_name(xdr, &ctx->src_name);
if (err)
return err;
/* ctx->targ_name */
err = gssx_dec_name(xdr, &ctx->targ_name);
if (err)
return err;
/* ctx->lifetime */
p = xdr_inline_decode(xdr, 8+8);
if (unlikely(p == NULL))
return -ENOSPC;
p = xdr_decode_hyper(p, &ctx->lifetime);
/* ctx->ctx_flags */
p = xdr_decode_hyper(p, &ctx->ctx_flags);
/* ctx->locally_initiated */
err = gssx_dec_bool(xdr, &ctx->locally_initiated);
if (err)
return err;
/* ctx->open */
err = gssx_dec_bool(xdr, &ctx->open);
if (err)
return err;
/* we assume we have no options for now, so simply consume them */
/* ctx->options */
err = dummy_dec_opt_array(xdr, &ctx->options);
return err;
}
