1 files changed, 90 insertions, 0 deletions
diff --git a/res/res_pjsip/config_global.c b/res/res_pjsip/config_global.c
new file mode 100644
index 000000000..2b2c021ee
--- /dev/null
+++ b/res/res_pjsip/config_global.c
@@ -0,0 +1,90 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2013, Digium, Inc.
+ *
+ * Mark Michelson <mmichelson@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+#include "asterisk.h"
+
+#include <pjsip.h>
+#include <pjlib.h>
+
+#include "asterisk/res_pjsip.h"
+#include "asterisk/sorcery.h"
+#include "asterisk/ast_version.h"
+
+#define DEFAULT_MAX_FORWARDS 70
+#define DEFAULT_USERAGENT_PREFIX "Asterisk PBX"
+
+static char default_useragent[128];
+
+struct global_config {
+	SORCERY_OBJECT(details);
+	AST_DECLARE_STRING_FIELDS(
+		AST_STRING_FIELD(useragent);
+	);
+	/* Value to put in Max-Forwards header */
+	unsigned int max_forwards;
+};
+
+static void global_destructor(void *obj)
+{
+	struct global_config *cfg = obj;
+
+	ast_string_field_free_memory(cfg);
+}
+
+static void *global_alloc(const char *name)
+{
+	struct global_config *cfg = ast_sorcery_generic_alloc(sizeof(*cfg), global_destructor);
+
+	if (!cfg || ast_string_field_init(cfg, 64)) {
+		return NULL;
+	}
+
+	return cfg;
+}
+
+static int global_apply(const struct ast_sorcery *sorcery, void *obj)
+{
+	struct global_config *cfg = obj;
+	char max_forwards[10];
+
+	snprintf(max_forwards, sizeof(max_forwards), "%u", cfg->max_forwards);
+
+	ast_sip_add_global_request_header("Max-Forwards", max_forwards, 1);
+	ast_sip_add_global_request_header("User-Agent", cfg->useragent, 1);
+	ast_sip_add_global_response_header("Server", cfg->useragent, 1);
+	return 0;
+}
+
+int ast_sip_initialize_sorcery_global(struct ast_sorcery *sorcery)
+{
+	snprintf(default_useragent, sizeof(default_useragent), "%s %s", DEFAULT_USERAGENT_PREFIX, ast_get_version());
+
+	ast_sorcery_apply_default(sorcery, "global", "config", "pjsip.conf,criteria=type=global");
+
+	if (ast_sorcery_object_register(sorcery, "global", global_alloc, NULL, global_apply)) {
+		return -1;
+	}
+
+	ast_sorcery_object_field_register(sorcery, "global", "type", "", OPT_NOOP_T, 0, 0);
+	ast_sorcery_object_field_register(sorcery, "global", "maxforwards", __stringify(DEFAULT_MAX_FORWARDS),
+			OPT_UINT_T, 0, FLDSET(struct global_config, max_forwards));
+	ast_sorcery_object_field_register(sorcery, "global", "useragent", default_useragent,
+			OPT_STRINGFIELD_T, 0, STRFLDSET(struct global_config, useragent));
+
+	return 0;
+}