docs: Add "Provided-by" to doc XML and CLI output.

For application, function, manager, managerEvent, managerEventInstance
and info XML documentation nodes, the make_xml_documentation script will
add a "module" attribute if not already present.  For XML in separate
"*_doc.xml" files, the script figures out the correct module name.  For
documentation in the "main" directory, the module name is set to "builtin".

The CLI handlers for "core show application", "core show function",
"manager show command" and "manager show event", have been updated to
show the following after the Synopsis...

```
[Provided By]
<modulename>
```

For modules that provide additional "info" elements (like the technologies
do for Dial), the providing module has also been added.

```
Technology: WebSocket  Provided by: chan_websocket
WebSocket Dial Strings:
...
```

UserNote: The CLI help for applications, functions, manager commands and
manager events now shows the module that provides its functionality.

build_tools/make_xml_documentation

@@ -205,10 +205,20 @@ for subdir in ${mod_subdirs} ; do
 			fi
 		fi
 		if [ "${for_wiki}" -eq "1" ] ; then
-			${PYTHON} build_tools/get_documentation.py < "${i}" >> "${output_file}"
+			${PYTHON} build_tools/get_documentation.py < "${i}" > /tmp/xmldoc.tmp.xml
 		else
-			${AWK} -f "${source_tree}/build_tools/get_documentation" "${i}" >> "${output_file}"
+			${AWK} -f "${source_tree}/build_tools/get_documentation" "${i}" > /tmp/xmldoc.tmp.xml
 		fi
+		if [ "${subdir}" = "main" ] ; then
+			# Force the module to be "builtin" if the source is in the main directory.
+			mn="builtin"
+		else
+			# Otherwise, let's just get the basename of the module.
+			bn=${i##*/}
+			mn=${bn%%.*}
+		fi
+		# Set the module name on specific elements
+		${SED} -r -e "s/<(manager|managerEvent|managerEventInstance|function|application|info)\s+([^>]+)>/<\1 \2 module=\"${mn}\">/g" /tmp/xmldoc.tmp.xml >> "${output_file}"
 	done
 	for i in $(${FIND} "${subdir_path}" -name '*.xml') ; do
 		${GREP} -q "appdocsxml.dtd" "${i}" || continue
@@ -220,11 +230,36 @@ for subdir in ${mod_subdirs} ; do
 					${XMLSTARLET} val -e -d "${source_tree}/doc/appdocsxml.dtd" "${i}" || { echo "" ; exit 1 ; }
 			fi
 		fi
-		${SED} -r "/^\s*(<[?]xml|<.DOCTYPE|<.?docs)/d" "${i}" >> "${output_file}"
+		${SED} -r "/^\s*(<[?]xml|<.DOCTYPE|<.?docs)/d" "${i}" > /tmp/xmldoc.tmp.xml
+		dirname=${i%/*}
+		if [ "${dirname}" != "${subdir_path}" ] ; then
+			# If we're in a subdirectory like channels/pjsip, we need to check channels/Makefile
+			# to see which module xml files in this directory belong to.
+			bn=${dirname##*/}
+			mn=$(${SED} -n -r -e "s/^[$]\(call MOD_ADD_C,([^,]+),[$]\(wildcard\s+${bn}\/.*/\1/gp" "${subdir_path}/Makefile")
+		else
+			if [ "${subdir}" = "main" ] ; then
+				# Force the module to be "builtin" if the XML is in the main directory.
+				mn="builtin"
+			else
+				# Otherwise the xml should have be "<module>_doc.xml" suffix so
+				# get the basename then strip the suffix.
+				bn=${i##*/}
+				mn=${bn%%_doc.xml}
+			fi
+		fi
+		# Set the module name on specific elements
+		${SED} -r -e "s/<(manager|managerEvent|managerEventInstance|function|application|info)\s+([^>]+)>/<\1 \2 module=\"${mn}\">/g" /tmp/xmldoc.tmp.xml >> "${output_file}"
 	done
 done
+
 echo "</docs>" >> "${output_file}"
 echo ""
+# Some entries may already have a module attribute so remove the dup.
+# It's easier to do this once on the entire file rather on a source-by-source basis.
+cp "${output_file}" /tmp/xmldoc.tmp.xml
+${SED} -r -e 's/module="([^"]+)"\s+module="([^"]+)">/module="\1">/g' /tmp/xmldoc.tmp.xml > "${output_file}"
+
 
 if [ "${for_wiki}" -eq "1" ] ; then
 	${PYTHON} build_tools/post_process_documentation.py -i "${output_file}" -o "${core_output_file}"

doc/appdocsxml.dtd

@@ -64,6 +64,7 @@
 
   <!ELEMENT managerEventInstance (since?,synopsis?,syntax?,description?,see-also?)*>
   <!ATTLIST managerEventInstance class CDATA #REQUIRED>
+  <!ATTLIST managerEventInstance module CDATA #IMPLIED>
 
   <!ELEMENT configInfo (synopsis?,description?,configFile+)>
   <!ATTLIST configInfo name CDATA #REQUIRED>
@@ -95,6 +96,7 @@
   <!ATTLIST info name CDATA #REQUIRED>
   <!ATTLIST info language CDATA #REQUIRED>
   <!ATTLIST info tech CDATA #REQUIRED>
+  <!ATTLIST info module CDATA #IMPLIED>
 
   <!ELEMENT see-also (ref|xi:include)*>
 

include/asterisk/manager.h

@@ -181,7 +181,8 @@ struct manager_action {
 	 * function and unregistering the AMI action object.
 	 */
 	unsigned int registered:1;
-	AST_STRING_FIELD_EXTENDED(since);	/*!< Documentation "since" element */
+	AST_STRING_FIELD_EXTENDED(since);	     /*!< Documentation "since" element */
+	AST_STRING_FIELD_EXTENDED(provided_by);	 /*!< Documentation "provided_by" element */
 };
 
 /*! \brief External routines may register/unregister manager callbacks this way

include/asterisk/pbx.h

@@ -151,6 +151,7 @@ struct ast_custom_function {
 
 	AST_RWLIST_ENTRY(ast_custom_function) acflist;
 	AST_STRING_FIELD_EXTENDED(since); /*!< Since text for 'show functions' */
+	AST_STRING_FIELD_EXTENDED(provided_by);  /*!< Provided-by text for 'show functions' */
 };
 
 /*! \brief All switch functions have the same interface, so define a type for them */

include/asterisk/xmldoc.h

@@ -80,6 +80,8 @@ struct ast_xml_doc_item {
 	AST_LIST_ENTRY(ast_xml_doc_item) next;
 	/*! Since tagged information, if it exists */
 	struct ast_str *since;
+	/*! The provided-by of the item */
+	struct ast_str *provided_by;
 };
 
 /*! \brief Execute an XPath query on the loaded XML documentation
@@ -180,6 +182,18 @@ char *ast_xmldoc_printable(const char *bwinput, int withcolors);
  */
 char *ast_xmldoc_build_synopsis(const char *type, const char *name, const char *module);
 
+/*!
+ *  \brief Generate provided-by documentation from XML.
+ *  \param type The source of documentation (application, function, etc).
+ *  \param name The name of the application, function, etc.
+ *  \param module The module the item is in (optional, can be NULL)
+ *  \retval NULL on error.
+ *  \retval A malloc'ed string with the provided-by.
+ *
+ *  \note The value actually comes from the "module" attribute.
+ */
+char *ast_xmldoc_build_provided_by(const char *type, const char *name, const char *module);
+
 /*!
  *  \brief Generate description documentation from XML.
  *  \param type The source of documentation (application, function, etc).

main/manager.c

@@ -1121,6 +1121,7 @@ static char *handle_showmancmd(struct ast_cli_entry *e, int cmd, struct ast_cli_
 #ifdef AST_XML_DOCS
 				if (cur->docsrc == AST_XML_DOC) {
 					char *synopsis = ast_xmldoc_printable(S_OR(cur->synopsis, "Not available"), 1);
+					char *provided_by = ast_xmldoc_printable(S_OR(cur->provided_by, "Not available"), 1);
 					char *since = ast_xmldoc_printable(S_OR(cur->since, "Not available"), 1);
 					char *description = ast_xmldoc_printable(S_OR(cur->description, "Not available"), 1);
 					char *syntax = ast_xmldoc_printable(S_OR(cur->syntax, "Not available"), 1);
@@ -1129,9 +1130,10 @@ static char *handle_showmancmd(struct ast_cli_entry *e, int cmd, struct ast_cli_
 					char *seealso = ast_xmldoc_printable(S_OR(cur->seealso, "Not available"), 1);
 					char *responses = ast_xmldoc_printable("None", 1);
 
-					if (!synopsis || !since || !description || !syntax || !arguments
+					if (!synopsis || !provided_by || !since || !description || !syntax || !arguments
 							|| !privilege || !seealso || !responses) {
 						ast_free(synopsis);
+						ast_free(provided_by);
 						ast_free(since);
 						ast_free(description);
 						ast_free(syntax);
@@ -1161,9 +1163,12 @@ static char *handle_showmancmd(struct ast_cli_entry *e, int cmd, struct ast_cli_
 						"%s\n\n"
 						COLORIZE_FMT "\n"
 						"%s\n\n"
+						COLORIZE_FMT "\n"
+						"%s\n\n"
 						COLORIZE_FMT "\n",
 						ast_term_color(COLOR_MAGENTA, 0), cur->action, ast_term_reset(),
 						COLORIZE(COLOR_MAGENTA, 0, "[Synopsis]"), synopsis,
+						COLORIZE(COLOR_MAGENTA, 0, "[Provided By]"), provided_by,
 						COLORIZE(COLOR_MAGENTA, 0, "[Since]"), since,
 						COLORIZE(COLOR_MAGENTA, 0, "[Description]"), description,
 						COLORIZE(COLOR_MAGENTA, 0, "[Syntax]"), syntax,
@@ -1203,6 +1208,7 @@ static char *handle_showmancmd(struct ast_cli_entry *e, int cmd, struct ast_cli_
 						);
 
 					ast_free(synopsis);
+					ast_free(provided_by);
 					ast_free(since);
 					ast_free(description);
 					ast_free(syntax);
@@ -7843,6 +7849,11 @@ int ast_manager_register2(const char *action, int auth, int (*func)(struct manse
 		return -1;
 	}
 
+	if (ast_string_field_init_extended(cur, provided_by)) {
+		ao2_t_ref(cur, -1, "action object creation failed");
+		return -1;
+	}
+
 	cur->action = action;
 	cur->authority = auth;
 	cur->func = func;
@@ -7859,6 +7870,10 @@ int ast_manager_register2(const char *action, int auth, int (*func)(struct manse
 		ast_string_field_set(cur, synopsis, tmpxml);
 		ast_free(tmpxml);
 
+		tmpxml = ast_xmldoc_build_provided_by("manager", action, NULL);
+		ast_string_field_set(cur, provided_by, tmpxml);
+		ast_free(tmpxml);
+
 		tmpxml = ast_xmldoc_build_syntax("manager", action, NULL);
 		ast_string_field_set(cur, syntax, tmpxml);
 		ast_free(tmpxml);
@@ -9267,16 +9282,17 @@ static char *handle_manager_show_events(struct ast_cli_entry *e, int cmd, struct
 
 static void print_event_instance(struct ast_cli_args *a, struct ast_xml_doc_item *instance)
 {
-	char *since, *syntax, *description, *synopsis, *seealso, *arguments;
+	char *since, *syntax, *provided_by, *description, *synopsis, *seealso, *arguments;
 
 	synopsis = ast_xmldoc_printable(AS_OR(instance->synopsis, "Not available"), 1);
+	provided_by = ast_xmldoc_printable(AS_OR(instance->provided_by, "Not available"), 1);
 	since = ast_xmldoc_printable(AS_OR(instance->since, "Not available"), 1);
 	description = ast_xmldoc_printable(AS_OR(instance->description, "Not available"), 1);
 	syntax = ast_xmldoc_printable(AS_OR(instance->syntax, "Not available"), 1);
 	arguments = ast_xmldoc_printable(AS_OR(instance->arguments, "Not available"), 1);
 	seealso = ast_xmldoc_printable(AS_OR(instance->seealso, "Not available"), 1);
 
-	if (!synopsis || !since || !description || !syntax || !arguments || !seealso) {
+	if (!synopsis || !provided_by || !since || !description || !syntax || !arguments || !seealso) {
 		ast_cli(a->fd, "Error: Memory allocation failed\n");
 		goto free_docs;
 	}
@@ -9294,9 +9310,12 @@ static void print_event_instance(struct ast_cli_args *a, struct ast_xml_doc_item
 		COLORIZE_FMT "\n"
 		"%s\n\n"
 		COLORIZE_FMT "\n"
+		"%s\n\n"
+		COLORIZE_FMT "\n"
 		"%s\n\n",
 		ast_term_color(COLOR_MAGENTA, 0), instance->name, ast_term_reset(),
 		COLORIZE(COLOR_MAGENTA, 0, "[Synopsis]"), synopsis,
+		COLORIZE(COLOR_MAGENTA, 0, "[Provided By]"), provided_by,
 		COLORIZE(COLOR_MAGENTA, 0, "[Since]"), since,
 		COLORIZE(COLOR_MAGENTA, 0, "[Description]"), description,
 		COLORIZE(COLOR_MAGENTA, 0, "[Syntax]"), syntax,

main/pbx_app.c

@@ -46,6 +46,7 @@ struct ast_app {
 	int (*execute)(struct ast_channel *chan, const char *data);
 	AST_DECLARE_STRING_FIELDS(
 		AST_STRING_FIELD(synopsis);     /*!< Synopsis text for 'show applications' */
+		AST_STRING_FIELD(provided_by);  /*!< Provided-by text for 'show applications' */
 		AST_STRING_FIELD(since);        /*!< Since text for 'show applications' */
 		AST_STRING_FIELD(description);  /*!< Description (help text) for 'show application &lt;name&gt;' */
 		AST_STRING_FIELD(syntax);       /*!< Syntax text for 'core show applications' */
@@ -143,6 +144,11 @@ int ast_register_application2(const char *app, int (*execute)(struct ast_channel
 		ast_string_field_set(tmp, synopsis, tmpxml);
 		ast_free(tmpxml);
 
+		/* load provied_by */
+		tmpxml = ast_xmldoc_build_provided_by("application", app, ast_module_name(tmp->module));
+		ast_string_field_set(tmp, provided_by, tmpxml);
+		ast_free(tmpxml);
+
 		/* load since */
 		tmpxml = ast_xmldoc_build_since("application", app, ast_module_name(tmp->module));
 		ast_string_field_set(tmp, since, tmpxml);
@@ -197,11 +203,12 @@ int ast_register_application2(const char *app, int (*execute)(struct ast_channel
 
 static void print_app_docs(struct ast_app *aa, int fd)
 {
-	char *synopsis = NULL, *since = NULL, *description = NULL, *syntax = NULL, *arguments = NULL, *seealso = NULL;
+	char *synopsis = NULL, *provided_by = NULL, *since = NULL, *description = NULL, *syntax = NULL, *arguments = NULL, *seealso = NULL;
 
 #ifdef AST_XML_DOCS
 	if (aa->docsrc == AST_XML_DOC) {
 		synopsis = ast_xmldoc_printable(S_OR(aa->synopsis, "Not available"), 1);
+		provided_by = ast_xmldoc_printable(S_OR(aa->provided_by, "Not available"), 1);
 		since = ast_xmldoc_printable(S_OR(aa->since, "Not available"), 1);
 		description = ast_xmldoc_printable(S_OR(aa->description, "Not available"), 1);
 		syntax = ast_xmldoc_printable(S_OR(aa->syntax, "Not available"), 1);
@@ -211,6 +218,7 @@ static void print_app_docs(struct ast_app *aa, int fd)
 #endif
 	{
 		synopsis = ast_strdup(S_OR(aa->synopsis, "Not Available"));
+		provided_by = ast_strdup(S_OR(aa->provided_by, "Not Available"));
 		since = ast_strdup(S_OR(aa->since, "Not Available"));
 		description = ast_strdup(S_OR(aa->description, "Not Available"));
 		syntax = ast_strdup(S_OR(aa->syntax, "Not Available"));
@@ -218,7 +226,7 @@ static void print_app_docs(struct ast_app *aa, int fd)
 		seealso = ast_strdup(S_OR(aa->seealso, "Not Available"));
 	}
 		/* check allocated memory. */
-	if (!synopsis || !since || !description || !syntax || !arguments || !seealso) {
+	if (!synopsis || !provided_by || !since || !description || !syntax || !arguments || !seealso) {
 		goto free_docs;
 	}
 
@@ -235,9 +243,12 @@ static void print_app_docs(struct ast_app *aa, int fd)
 		COLORIZE_FMT "\n"
 		"%s\n\n"
 		COLORIZE_FMT "\n"
+		"%s\n\n"
+		COLORIZE_FMT "\n"
 		"%s\n\n",
 		ast_term_color(COLOR_MAGENTA, 0), aa->name, ast_term_reset(),
 		COLORIZE(COLOR_MAGENTA, 0, "[Synopsis]"), synopsis,
+		COLORIZE(COLOR_MAGENTA, 0, "[Provided By]"), provided_by,
 		COLORIZE(COLOR_MAGENTA, 0, "[Since]"), since,
 		COLORIZE(COLOR_MAGENTA, 0, "[Description]"), description,
 		COLORIZE(COLOR_MAGENTA, 0, "[Syntax]"), syntax,
@@ -247,6 +258,7 @@ static void print_app_docs(struct ast_app *aa, int fd)
 
 free_docs:
 	ast_free(synopsis);
+	ast_free(provided_by);
 	ast_free(since);
 	ast_free(description);
 	ast_free(syntax);

main/pbx_functions.c

@@ -144,7 +144,7 @@ static char *handle_show_function(struct ast_cli_entry *e, int cmd, struct ast_c
 {
 	struct ast_custom_function *acf;
 	/* Maximum number of characters added by terminal coloring is 22 */
-	char *synopsis = NULL, *since = NULL, *description = NULL, *syntax = NULL, *arguments = NULL, *seealso = NULL;
+	char *synopsis = NULL, *provided_by = NULL, *since = NULL, *description = NULL, *syntax = NULL, *arguments = NULL, *seealso = NULL;
 	char *rtn = CLI_SUCCESS;
 
 	switch (cmd) {
@@ -171,6 +171,7 @@ static char *handle_show_function(struct ast_cli_entry *e, int cmd, struct ast_c
 #ifdef AST_XML_DOCS
 	if (acf->docsrc == AST_XML_DOC) {
 		synopsis = ast_xmldoc_printable(S_OR(acf->synopsis, "Not available"), 1);
+		provided_by = ast_xmldoc_printable(S_OR(acf->provided_by, "Not available"), 1);
 		since = ast_xmldoc_printable(S_OR(acf->since, "Not available"), 1);
 		description = ast_xmldoc_printable(S_OR(acf->desc, "Not available"), 1);
 		syntax = ast_xmldoc_printable(S_OR(acf->syntax, "Not available"), 1);
@@ -180,6 +181,7 @@ static char *handle_show_function(struct ast_cli_entry *e, int cmd, struct ast_c
 #endif
 	{
 		synopsis = ast_strdup(S_OR(acf->synopsis, "Not Available"));
+		provided_by = ast_strdup(S_OR(acf->provided_by, "Not available"));
 		since = ast_strdup(S_OR(acf->since, "Not Available"));
 		description = ast_strdup(S_OR(acf->desc, "Not Available"));
 		syntax = ast_strdup(S_OR(acf->syntax, "Not Available"));
@@ -187,7 +189,7 @@ static char *handle_show_function(struct ast_cli_entry *e, int cmd, struct ast_c
 		seealso = ast_strdup(S_OR(acf->seealso, "Not Available"));
 	}
 		/* check allocated memory. */
-	if (!synopsis || !since || !description || !syntax || !arguments || !seealso) {
+	if (!synopsis || !provided_by || !since || !description || !syntax || !arguments || !seealso) {
 		rtn = CLI_FAILURE;
 		goto free_docs;
 	}
@@ -205,9 +207,12 @@ static char *handle_show_function(struct ast_cli_entry *e, int cmd, struct ast_c
 		COLORIZE_FMT "\n"
 		"%s\n\n"
 		COLORIZE_FMT "\n"
+		"%s\n\n"
+		COLORIZE_FMT "\n"
 		"%s\n\n",
 		ast_term_color(COLOR_MAGENTA, 0), acf->name, ast_term_reset(),
 		COLORIZE(COLOR_MAGENTA, 0, "[Synopsis]"), synopsis,
+		COLORIZE(COLOR_MAGENTA, 0, "[Provided By]"), provided_by,
 		COLORIZE(COLOR_MAGENTA, 0, "[Since]"), since,
 		COLORIZE(COLOR_MAGENTA, 0, "[Description]"), description,
 		COLORIZE(COLOR_MAGENTA, 0, "[Syntax]"), syntax,
@@ -217,6 +222,7 @@ static char *handle_show_function(struct ast_cli_entry *e, int cmd, struct ast_c
 
 free_docs:
 	ast_free(synopsis);
+	ast_free(provided_by);
 	ast_free(since);
 	ast_free(description);
 	ast_free(syntax);
@@ -333,11 +339,21 @@ static int acf_retrieve_docs(struct ast_custom_function *acf)
 		return -1;
 	}
 
+	if (ast_string_field_init_extended(acf, provided_by)) {
+		ast_string_field_free_memory(acf);
+		return -1;
+	}
+
 	/* load synopsis */
 	tmpxml = ast_xmldoc_build_synopsis("function", acf->name, ast_module_name(acf->mod));
 	ast_string_field_set(acf, synopsis, tmpxml);
 	ast_free(tmpxml);
 
+	/* load provided_by */
+	tmpxml = ast_xmldoc_build_provided_by("function", acf->name, ast_module_name(acf->mod));
+	ast_string_field_set(acf, provided_by, tmpxml);
+	ast_free(tmpxml);
+
 	/* load since */
 	tmpxml = ast_xmldoc_build_since("function", acf->name, ast_module_name(acf->mod));
 	ast_string_field_set(acf, since, tmpxml);

main/xmldoc.c

@@ -1812,6 +1812,56 @@ char *ast_xmldoc_build_since(const char *type, const char *name, const char *mod
 	return output;
 }
 
+/*!
+ * \internal
+ * \brief Build provided-by information for an item
+ *
+ * \param node	The application, function, etc. node to parse
+ *
+ * \note This method exists for when you already have the node.  This
+ * prevents having to lock the documentation tree twice
+ *
+ * \retval A malloc'd character pointer to the provided-by information of the item
+ * \retval NULL on failure
+ *
+ * \note The value actually comes from the "module" attribute.
+ *
+ */
+static char *_ast_xmldoc_build_provided_by(struct ast_xml_node *node)
+{
+	const char *output;
+
+	output = ast_xml_get_attribute(node, "module");
+	if (ast_strlen_zero(output)) {
+		return NULL;
+	}
+
+	return ast_strdup(output);
+}
+
+char *ast_xmldoc_build_provided_by(const char *type, const char *name, const char *module)
+{
+	char *output;
+	struct ast_xml_node *node;
+
+	if (ast_strlen_zero(type) || ast_strlen_zero(name)) {
+		return NULL;
+	}
+
+	/* get the application/function root node. */
+	AST_RWLIST_RDLOCK(&xmldoc_tree);
+	node = xmldoc_get_node(type, name, module, documentation_language);
+	if (!node || !ast_xml_node_get_children(node)) {
+		AST_RWLIST_UNLOCK(&xmldoc_tree);
+		return NULL;
+	}
+
+	output = _ast_xmldoc_build_provided_by(node);
+	AST_RWLIST_UNLOCK(&xmldoc_tree);
+
+	return output;
+}
+
 /*!
  * \internal
  * \brief Parse a \<enum\> node.
@@ -2080,6 +2130,7 @@ static void xmldoc_parse_parameter(struct ast_xml_node *fixnode, const char *tab
 static int xmldoc_parse_info(struct ast_xml_node *node, const char *tabs, const char *posttabs, struct ast_str **buffer)
 {
 	const char *tech;
+	const char *provided_by;
 	char *internaltabs;
 	int internal_ret;
 	int ret = 0;
@@ -2094,8 +2145,11 @@ static int xmldoc_parse_info(struct ast_xml_node *node, const char *tabs, const
 	}
 
 	tech = ast_xml_get_attribute(node, "tech");
+	provided_by = ast_xml_get_attribute(node, "module");
+
 	if (tech) {
-		ast_str_append(buffer, 0, "%s<note>Technology: %s</note>\n", internaltabs, tech);
+		ast_str_append(buffer, 0, "%s<note>Technology: %s  Provided by: %s</note>\n", internaltabs, tech,
+			S_OR(provided_by, "unknown"));
 		ast_xml_free_attr(tech);
 	}
 
@@ -2377,6 +2431,7 @@ static void ast_xml_doc_item_destructor(void *obj)
 	}
 
 	ast_free(doc->synopsis);
+	ast_free(doc->provided_by);
 	ast_free(doc->since);
 	ast_free(doc->description);
 	ast_free(doc->syntax);
@@ -2410,6 +2465,7 @@ static struct ast_xml_doc_item *ast_xml_doc_item_alloc(const char *name, const c
 	}
 
 	if (   !(item->synopsis = ast_str_create(128))
+		|| !(item->provided_by = ast_str_create(128))
 		|| !(item->since = ast_str_create(128))
 		|| !(item->description = ast_str_create(128))
 		|| !(item->syntax = ast_str_create(128))
@@ -2475,6 +2531,7 @@ static struct ast_xml_doc_item *xmldoc_build_documentation_item(struct ast_xml_n
 {
 	struct ast_xml_doc_item *item;
 	char *synopsis;
+	char *provided_by;
 	char *since;
 	char *description;
 	char *syntax;
@@ -2487,6 +2544,7 @@ static struct ast_xml_doc_item *xmldoc_build_documentation_item(struct ast_xml_n
 	item->node = node;
 
 	synopsis = _ast_xmldoc_build_synopsis(node);
+	provided_by = _ast_xmldoc_build_provided_by(node);
 	since = _ast_xmldoc_build_since(node);
 	description = _ast_xmldoc_build_description(node);
 	syntax = _ast_xmldoc_build_syntax(node, type, name);
@@ -2496,6 +2554,9 @@ static struct ast_xml_doc_item *xmldoc_build_documentation_item(struct ast_xml_n
 	if (synopsis) {
 		ast_str_set(&item->synopsis, 0, "%s", synopsis);
 	}
+	if (provided_by) {
+		ast_str_set(&item->provided_by, 0, "%s", provided_by);
+	}
 	if (since) {
 		ast_str_set(&item->since, 0, "%s", since);
 	}
@@ -2513,6 +2574,7 @@ static struct ast_xml_doc_item *xmldoc_build_documentation_item(struct ast_xml_n
 	}
 
 	ast_free(synopsis);
+	ast_free(provided_by);
 	ast_free(since);
 	ast_free(description);
 	ast_free(syntax);
@@ -2738,6 +2800,7 @@ int ast_xmldoc_regenerate_doc_item(struct ast_xml_doc_item *item)
 	char *seealso;
 	char *arguments;
 	char *synopsis;
+	char *provided_by;
 	char *description;
 
 	if (!item || !item->node) {
@@ -2753,6 +2816,7 @@ int ast_xmldoc_regenerate_doc_item(struct ast_xml_doc_item *item)
 	seealso = _ast_xmldoc_build_seealso(item->node);
 	arguments = _ast_xmldoc_build_arguments(item->node);
 	synopsis = _ast_xmldoc_build_synopsis(item->node);
+	provided_by = _ast_xmldoc_build_provided_by(item->node);
 	description = _ast_xmldoc_build_description(item->node);
 
 	if (syntax) {
@@ -2775,6 +2839,7 @@ int ast_xmldoc_regenerate_doc_item(struct ast_xml_doc_item *item)
 	ast_free(seealso);
 	ast_free(arguments);
 	ast_free(synopsis);
+	ast_free(provided_by);
 	ast_free(description);
 	ast_xml_free_attr(name);
 	return 0;