From e9162b67d1ce9de3948fe3d8bbf05b853da24c34 Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Tue, 21 May 2019 09:25:11 -0500
Subject: [PATCH] Initial implementation of hexagram_sim

---
 include/hexagram/sim.h | 23 ++++++++++++
 src/Makefile           |  4 +--
 src/sim.c              | 79 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 104 insertions(+), 2 deletions(-)
 create mode 100644 include/hexagram/sim.h
 create mode 100644 src/sim.c

diff --git a/include/hexagram/sim.h b/include/hexagram/sim.h
new file mode 100644
index 0000000..f270af4
--- /dev/null
+++ b/include/hexagram/sim.h
@@ -0,0 +1,23 @@
+#ifndef _HEXAGRAM_SIM_H
+#define _HEXAGRAM_SIM_H
+
+#include <hexagram/dict.h>
+#include <hexagram/can.h>
+#include <hexagram/module.h>
+
+typedef struct _hexagram_sim hexagram_sim;
+
+hexagram_sim *hexagram_sim_new();
+
+void hexagram_sim_destroy(hexagram_sim *sim);
+
+int hexagram_sim_add_can_if(hexagram_sim *sim,
+                            const char *name,
+                            hexagram_can_if *can_if);
+
+int hexagram_sim_add_module(hexagram_sim *sim,
+                            hexagram_module *module);
+
+int hexagram_sim_run(hexagram_sim *sim);
+
+#endif /* _HEXAGRAM_SIM_H */
diff --git a/src/Makefile b/src/Makefile
index 5969c28..e2194d9 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -7,10 +7,10 @@ CC		= $(CROSS)cc
 CFLAGS		+= -fPIC -I$(INCLUDE_PATH)
 LDFLAGS		=
 
-HEADERS		= dict.h hash.h can.h capture.h pcapng.h module.h
+HEADERS		= dict.h hash.h can.h capture.h pcapng.h module.h sim.h
 HEADERS_LOCAL	= util.h
 
-OBJS		= dict.o hash.o can.o capture.o pcapng.o module.o
+OBJS		= dict.o hash.o can.o capture.o pcapng.o module.o sim.o
 
 VERSION_MAJOR	= 0
 VERSION_MINOR	= 0.1
diff --git a/src/sim.c b/src/sim.c
new file mode 100644
index 0000000..a96caae
--- /dev/null
+++ b/src/sim.c
@@ -0,0 +1,79 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include <hexagram/sim.h>
+
+struct _hexagram_sim {
+    hexagram_dict *can_ifs;
+    hexagram_dict *modules;
+};
+
+hexagram_sim *hexagram_sim_new() {
+    hexagram_sim *sim;
+
+    if ((sim = malloc(sizeof(*sim))) == NULL) {
+        goto error_malloc;
+    }
+
+    if ((sim->can_ifs = hexagram_dict_new()) == NULL) {
+        goto error_dict_new_can_ifs;
+    }
+
+    if ((sim->modules = hexagram_dict_new()) == NULL) {
+        goto error_dict_new_modules;
+    }
+
+    return sim;
+
+error_dict_new_modules:
+    hexagram_dict_destroy(sim->can_ifs);
+
+error_dict_new_can_ifs:
+    free(sim);
+
+error_malloc:
+    return NULL;
+}
+
+void hexagram_sim_destroy(hexagram_sim *sim) {
+    hexagram_dict_destroy(sim->modules);
+    hexagram_dict_destroy(sim->can_ifs);
+
+    free(sim);
+}
+
+int hexagram_sim_add_can_if(hexagram_sim *sim,
+                            const char *name,
+                            hexagram_can_if *can_if) {
+    if (hexagram_dict_set(sim->can_ifs,
+                          (void *)name, strlen(name), can_if) == NULL) {
+        goto error_dict_set;
+    }
+
+    return 0;
+
+error_dict_set:
+    return -1;
+}
+
+int hexagram_sim_add_module(hexagram_sim *sim,
+                            hexagram_module *module) {
+    const char *name;
+
+    if ((name = hexagram_module_name(module)) == NULL) {
+        goto error_module_name;
+    }
+
+    if (hexagram_dict_set(sim->modules,
+                          (void *)name, strlen(name), module) == NULL) {
+        goto error_dict_set;
+    }
+
+    return 0;
+
+error_dict_set:
+error_module_name:
+    return -1;
+}
+
+int hexagram_sim_run(hexagram_sim *sim);