Merge the pimp_my_sip branch into trunk.

The pimp_my_sip branch is being merged at this point because
it offers basic functionality, and from an API standpoint, things
are complete.

SIP work is *not* feature-complete; however, with the completion
of the SUBSCRIBE/NOTIFY API, all APIs (except a PUBLISH API) have
been created, and thus it is possible for developers to attempt
to create new SIP work.

API documentation can be found in the doxygen in the code, but
usability documentation is still lacking.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@386540 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 151 insertions, 0 deletions

diff --git a/res/res_sip_endpoint_identifier_ip.c b/res/res_sip_endpoint_identifier_ip.c
new file mode 100644
index 000000000..49c70b59d
--- /dev/null
+++ b/res/res_sip_endpoint_identifier_ip.c
@@ -0,0 +1,151 @@
+/*
+ * 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.
+ */
+
+/*** MODULEINFO
+	<depend>pjproject</depend>
+	<support_level>core</support_level>
+ ***/
+
+#include "asterisk.h"
+
+#include <pjsip.h>
+
+#include "asterisk/res_sip.h"
+#include "asterisk/module.h"
+#include "asterisk/acl.h"
+
+/*! \brief Structure for an IP identification matching object */
+struct ip_identify_match {
+	/*! \brief Sorcery object details */
+	SORCERY_OBJECT(details);
+	/*! \brief Stringfields */
+	AST_DECLARE_STRING_FIELDS(
+		/*! The name of the endpoint */
+		AST_STRING_FIELD(endpoint_name);
+	);
+	/*! \brief Networks or addresses that should match this */
+	struct ast_ha *matches;
+};
+
+/*! \brief Destructor function for a matching object */
+static void ip_identify_destroy(void *obj)
+{
+	struct ip_identify_match *identify = obj;
+
+	ast_string_field_free_memory(identify);
+	ast_free_ha(identify->matches);
+}
+
+/*! \brief Allocator function for a matching object */
+static void *ip_identify_alloc(const char *name)
+{
+	struct ip_identify_match *identify = ao2_alloc(sizeof(*identify), ip_identify_destroy);
+
+	if (!identify || ast_string_field_init(identify, 256)) {
+		ao2_cleanup(identify);
+		return NULL;
+	}
+
+	return identify;
+}
+
+/*! \brief Comparator function for a matching object */
+static int ip_identify_match_check(void *obj, void *arg, int flags)
+{
+	struct ip_identify_match *identify = obj;
+	struct ast_sockaddr *addr = arg;
+
+	return (ast_apply_ha(identify->matches, addr) != AST_SENSE_ALLOW) ? CMP_MATCH | CMP_STOP : 0;
+}
+
+static struct ast_sip_endpoint *ip_identify(pjsip_rx_data *rdata)
+{
+	struct ast_sockaddr addr = { { 0, } };
+	RAII_VAR(struct ao2_container *, candidates, NULL, ao2_cleanup);
+	RAII_VAR(struct ip_identify_match *, match, NULL, ao2_cleanup);
+
+	/* If no possibilities exist return early to save some time */
+	if (!(candidates = ast_sorcery_retrieve_by_fields(ast_sip_get_sorcery(), "identify", AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL)) ||
+		!ao2_container_count(candidates)) {
+		return NULL;
+	}
+
+	ast_sockaddr_parse(&addr, rdata->pkt_info.src_name, PARSE_PORT_FORBID);
+	ast_sockaddr_set_port(&addr, rdata->pkt_info.src_port);
+
+	if (!(match = ao2_callback(candidates, 0, ip_identify_match_check, &addr))) {
+		return NULL;
+	}
+
+	return ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", match->endpoint_name);
+}
+
+static struct ast_sip_endpoint_identifier ip_identifier = {
+	.identify_endpoint = ip_identify,
+};
+
+/*! \brief Custom handler for match field */
+static int ip_identify_match_handler(const struct aco_option *opt, struct ast_variable *var, void *obj)
+{
+	struct ip_identify_match *identify = obj;
+	int error = 0;
+
+	/* We deny what we actually want to match because there is an implicit permit all rule for ACLs */
+	if (!(identify->matches = ast_append_ha("d", var->value, identify->matches, &error))) {
+		return -1;
+	}
+
+	return error;
+}
+
+static int load_module(void)
+{
+	ast_sorcery_apply_default(ast_sip_get_sorcery(), "identify", "config", "res_sip.conf,criteria=type=identify");
+
+	if (ast_sorcery_object_register(ast_sip_get_sorcery(), "identify", ip_identify_alloc, NULL, NULL)) {
+		return AST_MODULE_LOAD_DECLINE;
+	}
+
+	ast_sorcery_object_field_register(ast_sip_get_sorcery(), "identify", "type", "", OPT_NOOP_T, 0, 0);
+	ast_sorcery_object_field_register(ast_sip_get_sorcery(), "identify", "endpoint", "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ip_identify_match, endpoint_name));
+	ast_sorcery_object_field_register_custom(ast_sip_get_sorcery(), "identify", "match", "", ip_identify_match_handler, NULL, 0, 0);
+	ast_sorcery_reload_object(ast_sip_get_sorcery(), "identify");
+
+	ast_sip_register_endpoint_identifier(&ip_identifier);
+
+	return AST_MODULE_LOAD_SUCCESS;
+}
+
+static int reload_module(void)
+{
+	ast_sorcery_reload_object(ast_sip_get_sorcery(), "identify");
+	return 0;
+}
+
+static int unload_module(void)
+{
+	ast_sip_unregister_endpoint_identifier(&ip_identifier);
+	return 0;
+}
+
+AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "SIP IP endpoint identifier",
+		.load = load_module,
+		.reload = reload_module,
+		.unload = unload_module,
+		.load_pri = AST_MODPRI_APP_DEPEND,
+	       );