Add r2plugin support

Author: radare

r2plugin/README.md

@@ -0,0 +1,21 @@
+# r2plugin
+
+This directory contains the make and meson files required
+to link r2yara statically inside radare2 (XPS).
+
+```console
+cd radare2
+mkdir -p libr/xps/p
+ln -s ../../../../r2yara libr/xps/p/r2yara
+cp libr/xps/p/r2yara/r2plugin/config.mk libr/xps/config.mk
+make -C libr/xps
+```
+
+Then build radare2 as usual (`./configure && make` or meson).
+The build requires libyara to be available via pkg-config.
+
+Verify with:
+
+```console
+r2 -q -c 'Lc~r2yara' --
+```

r2plugin/core/deps.h

@@ -0,0 +1,5 @@
+/* r2yara - LGPLv3 - Copyright 2014-2026 - pancake */
+
+#ifdef R2_CORE_H
+extern RCorePlugin r_core_plugin_r2yara;
+#endif

r2plugin/core/deps.mk

@@ -0,0 +1,7 @@
+R2YARA_CORE_WD=$(LIBR)/xps/p/r2yara
+R2YARA_YARA_CFLAGS=$(shell pkg-config --cflags yara 2>/dev/null)
+R2YARA_YARA_LDFLAGS=$(shell pkg-config --libs yara 2>/dev/null || echo -lyara)
+CFLAGS+=-I$(R2YARA_CORE_WD)/src $(R2YARA_YARA_CFLAGS)
+LDFLAGS+=$(R2YARA_YARA_LDFLAGS)
+R2YARA_CORE_OBJ=$(R2YARA_CORE_WD)/src/core_r2yara.o
+EXTERNAL_STATIC_OBJS+=$(R2YARA_CORE_OBJ)

r2plugin/meson.build

@@ -0,0 +1,16 @@
+# r2yara XPS integration for radare2.
+# Included from libr/xps/meson.build when r2yara sources live under
+# libr/xps/p/r2yara/. Appends sources and include paths to the r_core
+# aggregate so the static plugin is linked into libr_core.
+
+core_plugins += ['r2yara']
+
+r_core_additional_inc += include_directories(join_paths('..', 'src'))
+
+r_core_additional_sources += files(
+  '../src/core_r2yara.c',
+)
+
+# XPS has no per-plugin dependency hook; platform_deps is consumed by
+# libr_core's dependency list, so libyara is appended there.
+platform_deps += dependency('yara')

r2plugin/r2plugins.h

@@ -0,0 +1,5 @@
+/* r2yara - LGPLv3 - Copyright 2014-2026 - pancake */
+
+#ifdef R2_CORE_H
+#include "core/deps.h"
+#endif

r2plugin/static.cfg

@@ -0,0 +1 @@
+core.r2yara

src/core_r2yara.c

@@ -6,6 +6,10 @@
 #define R_LIB_ABIVERSION R2_ABIVERSION
 #endif
 
+#ifndef R2Y_VERSION
+#define R2Y_VERSION "1.5.0"
+#endif
+
 #if R_LIB_ABIVERSION >= 125
 #define r2yara_cmd_help(core, msg) r_cons_cmd_help ((core)->cons, msg)
 #define r2yara_cmd_help_match(core, msg, command) r_cons_cmd_help_match ((core)->cons, msg, command, 0, false)
@@ -1232,7 +1236,7 @@ static bool cmd_yara_fini(RCorePluginSession *cps) {
 	return true;
 }
 
-RCorePlugin r_core_plugin_yara = {
+RCorePlugin r_core_plugin_r2yara = {
 	.meta = {
 		.name = "yara",
 		.desc = "YARA integration",
@@ -1247,7 +1251,7 @@ RCorePlugin r_core_plugin_yara = {
 #ifndef CORELIB
 RLibStruct radare_plugin = {
 	.type = R_LIB_TYPE_CORE,
-	.data = &r_core_plugin_yara,
+	.data = &r_core_plugin_r2yara,
 	.abiversion = R2_ABIVERSION,
 	.version = R2_VERSION
 };