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/*
* Copyright 2010-2016, Tarantool AUTHORS, please see AUTHORS file.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* <COPYRIGHT HOLDER> OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "box/call.h"
#include "lua/call.h"
#include "schema.h"
#include "session.h"
#include "func.h"
#include "port.h"
#include "box.h"
#include "txn.h"
#include "xrow.h"
#include "iproto_constants.h"
#include "rmean.h"
#include "small/obuf.h"
#include "tt_static.h"
static const struct port_vtab port_msgpack_vtab;
void
port_msgpack_create(struct port *base, const char *data, uint32_t data_sz)
{
struct port_msgpack *port_msgpack = (struct port_msgpack *) base;
memset(port_msgpack, 0, sizeof(*port_msgpack));
port_msgpack->vtab = &port_msgpack_vtab;
port_msgpack->data = data;
port_msgpack->data_sz = data_sz;
}
static const char *
port_msgpack_get_msgpack(struct port *base, uint32_t *size)
{
struct port_msgpack *port = (struct port_msgpack *) base;
assert(port->vtab == &port_msgpack_vtab);
*size = port->data_sz;
return port->data;
}
static int
port_msgpack_dump_msgpack(struct port *base, struct obuf *out)
{
struct port_msgpack *port = (struct port_msgpack *)base;
assert(port->vtab == &port_msgpack_vtab);
size_t size = port->data_sz;
if (obuf_dup(out, port->data, size) == size)
return 0;
diag_set(OutOfMemory, size, "obuf_dup", "port->data");
return -1;
}
extern void
port_msgpack_dump_lua(struct port *base, struct lua_State *L, bool is_flat);
extern const char *
port_msgpack_dump_plain(struct port *base, uint32_t *size);
void
port_msgpack_destroy(struct port *base)
{
struct port_msgpack *port = (struct port_msgpack *)base;
assert(port->vtab == &port_msgpack_vtab);
free(port->plain);
}
int
port_msgpack_set_plain(struct port *base, const char *plain, uint32_t len)
{
struct port_msgpack *port = (struct port_msgpack *)base;
assert(port->plain == NULL);
port->plain = (char *)malloc(len + 1);
if (port->plain == NULL) {
diag_set(OutOfMemory, len + 1, "malloc", "port->plain");
return -1;
}
memcpy(port->plain, plain, len);
port->plain[len] = 0;
return 0;
}
static const struct port_vtab port_msgpack_vtab = {
.dump_msgpack = port_msgpack_dump_msgpack,
.dump_msgpack_16 = NULL,
.dump_lua = port_msgpack_dump_lua,
.dump_plain = port_msgpack_dump_plain,
.get_msgpack = port_msgpack_get_msgpack,
.get_vdbemem = NULL,
.destroy = port_msgpack_destroy,
};
int
box_module_reload(const char *name)
{
struct credentials *credentials = effective_user();
if ((credentials->universal_access & (PRIV_X | PRIV_U)) !=
(PRIV_X | PRIV_U)) {
struct user *user = user_find(credentials->uid);
if (user != NULL)
diag_set(AccessDeniedError, priv_name(PRIV_U),
schema_object_name(SC_UNIVERSE), "",
user->def->name);
return -1;
}
struct module *module = NULL;
if (module_reload(name, name + strlen(name), &module) == 0) {
if (module != NULL)
return 0;
else
diag_set(ClientError, ER_NO_SUCH_MODULE, name);
}
return -1;
}
int
box_process_call(struct call_request *request, struct port *port)
{
rmean_collect(rmean_box, IPROTO_CALL, 1);
/**
* Find the function definition and check access.
*/
const char *name = request->name;
assert(name != NULL);
uint32_t name_len = mp_decode_strl(&name);
/* Transaction is not started. */
assert(!in_txn());
int rc;
struct port args;
port_msgpack_create(&args, request->args,
request->args_end - request->args);
struct func *func = func_by_name(name, name_len);
if (func != NULL) {
rc = func_call(func, &args, port);
} else if ((rc = access_check_universe_object(PRIV_X | PRIV_U,
SC_FUNCTION, tt_cstr(name, name_len))) == 0) {
rc = box_lua_call(name, name_len, &args, port);
}
if (rc != 0)
return -1;
if (in_txn() != NULL) {
diag_set(ClientError, ER_FUNCTION_TX_ACTIVE);
port_destroy(port);
return -1;
}
return 0;
}
int
box_process_eval(struct call_request *request, struct port *port)
{
rmean_collect(rmean_box, IPROTO_EVAL, 1);
/* Check permissions */
if (access_check_universe(PRIV_X) != 0)
return -1;
struct port args;
port_msgpack_create(&args, request->args,
request->args_end - request->args);
const char *expr = request->expr;
uint32_t expr_len = mp_decode_strl(&expr);
if (box_lua_eval(expr, expr_len, &args, port) != 0)
return -1;
if (in_txn() != 0) {
diag_set(ClientError, ER_FUNCTION_TX_ACTIVE);
port_destroy(port);
return -1;
}
return 0;
}
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