commit fed0429355edea309d795101fa670b12d81a3ece
parent c1244f4e38f1d46d25d10688a8ea921cac7cc8ba
Author: parazyd <parazyd@dyne.org>
Date: Mon, 29 Oct 2018 14:23:00 +0100
Add the Zenroom dependency and implement a ZenroomExec wrapper.
Diffstat:
3 files changed, 127 insertions(+), 0 deletions(-)
diff --git a/README.md b/README.md
@@ -25,6 +25,7 @@ github.com/go-redis/redis
```
#### Python 3
+
```
https://stem.torproject.org/
```
@@ -46,3 +47,15 @@ to create hidden services and retrieve hidden service descriptors.
Redis is our storage backend where information about nodes is held.
Working configurations are provided in the `contrib` directory.
+
+
+#### Zenroom
+
+```
+https://github.com/decodeproject/zenroom
+```
+
+The shared library can be acquired by cloning the above repository and
+running `make linux-go`, which will compile a `.so` located in
+`build/go/libzenroomgo.so`. You will then need to install it on your
+system to a place such as `/usr/lib/`.
diff --git a/pkg/damlib/helpers.go b/pkg/damlib/helpers.go
@@ -20,6 +20,12 @@ package damlib
* along with this source code. If not, see <http://www.gnu.org/licenses/>.
*/
+// #cgo LDFLAGS: -lzenroomgo
+//
+// #include <stdlib.h>
+// #include "zenroom.h"
+import "C"
+
import (
"bytes"
"compress/gzip"
@@ -79,3 +85,8 @@ func ParseDirs(sl []string, data []byte) []string {
}
return sl
}
+
+func ZenroomExec(script, conf, keys, data string, verbosity int) int {
+ return int(C.zenroom_exec(C.CString(script), C.CString(conf),
+ C.CString(keys), C.CString(data), C.int(verbosity)))
+}
diff --git a/pkg/damlib/zenroom.h b/pkg/damlib/zenroom.h
@@ -0,0 +1,103 @@
+/* Zenroom (DECODE project)
+ *
+ * (c) Copyright 2017-2018 Dyne.org foundation
+ * designed, written and maintained by Denis Roio <jaromil@dyne.org>
+ *
+ * This source code is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Public License as published
+ * by the Free Software Foundation; either version 3 of the License,
+ * or (at your option) any later version.
+ *
+ * This source code is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * Please refer to the GNU Public License for more details.
+ *
+ * You should have received a copy of the GNU Public License along
+ * with this source code; if not, write to: Free Software Foundation,
+ * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __ZENROOM_H__
+#define __ZENROOM_H__
+
+/////////////////////////////////////////
+// high level api: one simple call
+
+int zenroom_exec(char *script, char *conf, char *keys,
+ char *data, int verbosity);
+
+// in case buffers should be used instead of stdout/err file
+// descriptors, this call defines where to print out the output and
+// the maximum sizes allowed for it. Output is NULL terminated.
+int zenroom_exec_tobuf(char *script, char *conf, char *keys,
+ char *data, int verbosity,
+ char *stdout_buf, size_t stdout_len,
+ char *stderr_buf, size_t stderr_len);
+
+// to obtain the Abstract Syntax Tree (AST) of a script
+// (output is in metalua formatted as JSON)
+int zenroom_parse_ast(char *script, int verbosity,
+ char *stdout_buf, size_t stdout_len,
+ char *stderr_buf, size_t stderr_len);
+
+void set_debug(int lev);
+
+////////////////////////////////////////
+
+
+// lower level api: init (exec_line*) teardown
+
+// heap initialised by the memory manager
+typedef struct {
+ void* (*malloc)(size_t size);
+ void* (*realloc)(void *ptr, size_t size);
+ void (*free)(void *ptr);
+ void* (*sys_malloc)(size_t size);
+ void* (*sys_realloc)(void *ptr, size_t size);
+ void (*sys_free)(void *ptr);
+ char *heap;
+ size_t heap_size;
+} zen_mem_t;
+
+// zenroom context, also available as "_Z" global in lua space
+// contents are opaque in lua and available only as lightuserdata
+typedef struct {
+ void *lua; // (lua_State*)
+ zen_mem_t *mem; // memory manager heap
+
+ char *stdout_buf;
+ size_t stdout_len;
+ size_t stdout_pos;
+ char *stderr_buf;
+ size_t stderr_len;
+ size_t stderr_pos;
+
+ int errorlevel;
+ void *userdata; // anything passed at init (reserved for caller)
+} zenroom_t;
+
+
+zenroom_t *zen_init(const char *conf, char *keys, char *data);
+int zen_exec_script(zenroom_t *Z, const char *script);
+void zen_teardown(zenroom_t *zenroom);
+
+#define UMM_HEAP (64*1024) // 64KiB (masked with 0x7fff)
+#define MAX_FILE (64*1024) // load max 64KiB files
+#ifndef MAX_STRING
+#define MAX_STRING 4097 // max 4KiB strings
+#endif
+#define MAX_OCTET 2049 // max 2KiB octets
+
+#define LUA_BASELIBNAME "_G"
+
+#define ZEN_BITS 8
+#ifndef SIZE_MAX
+#if ZEN_BITS == 32
+#define SIZE_MAX 4294967296
+#elif ZEN_BITS == 8
+#define SIZE_MAX 65536
+#endif
+#endif
+
+#endif
