doc: begin developer's manual

* Move doc/code/ -> doc/developer/
* Move disparate code documentation to doc/developer/
* Convert Markdown docs to reStructuredText
* Organize docs into Sphinx tree
* Move build docs -> doc/developer/
* Change build doc titles to fit under Building subsection of manual

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>

7 files changed, 0 insertions, 828 deletions

diff --git a/doc/code/.gitignore b/doc/code/.gitignore
deleted file mode 100644
index 0505537159..0000000000
--- a/doc/code/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-/_templates
-/_build
-!/Makefile
diff --git a/doc/code/Makefile b/doc/code/Makefile
deleted file mode 100644
index 056b78e68e..0000000000
--- a/doc/code/Makefile
+++ /dev/null
@@ -1,216 +0,0 @@
-# Makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line.
-SPHINXOPTS    =
-SPHINXBUILD   = sphinx-build
-PAPER         =
-BUILDDIR      = _build
-
-# User-friendly check for sphinx-build
-ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)
-$(error The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed, then set the SPHINXBUILD environment variable to point to the full path of the '$(SPHINXBUILD)' executable. Alternatively you can add the directory with the executable to your PATH. If you don't have Sphinx installed, grab it from http://sphinx-doc.org/)
-endif
-
-# Internal variables.
-PAPEROPT_a4     = -D latex_paper_size=a4
-PAPEROPT_letter = -D latex_paper_size=letter
-ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
-# the i18n builder cannot share the environment and doctrees with the others
-I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
-
-.PHONY: help
-help:
-	@echo "Please use \`make <target>' where <target> is one of"
-	@echo "  html       to make standalone HTML files"
-	@echo "  dirhtml    to make HTML files named index.html in directories"
-	@echo "  singlehtml to make a single large HTML file"
-	@echo "  pickle     to make pickle files"
-	@echo "  json       to make JSON files"
-	@echo "  htmlhelp   to make HTML files and a HTML help project"
-	@echo "  qthelp     to make HTML files and a qthelp project"
-	@echo "  applehelp  to make an Apple Help Book"
-	@echo "  devhelp    to make HTML files and a Devhelp project"
-	@echo "  epub       to make an epub"
-	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
-	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
-	@echo "  latexpdfja to make LaTeX files and run them through platex/dvipdfmx"
-	@echo "  text       to make text files"
-	@echo "  man        to make manual pages"
-	@echo "  texinfo    to make Texinfo files"
-	@echo "  info       to make Texinfo files and run them through makeinfo"
-	@echo "  gettext    to make PO message catalogs"
-	@echo "  changes    to make an overview of all changed/added/deprecated items"
-	@echo "  xml        to make Docutils-native XML files"
-	@echo "  pseudoxml  to make pseudoxml-XML files for display purposes"
-	@echo "  linkcheck  to check all external links for integrity"
-	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
-	@echo "  coverage   to run coverage check of the documentation (if enabled)"
-
-.PHONY: clean
-clean:
-	rm -rf $(BUILDDIR)/*
-
-.PHONY: html
-html:
-	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
-	@echo
-	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
-
-.PHONY: dirhtml
-dirhtml:
-	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
-	@echo
-	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
-
-.PHONY: singlehtml
-singlehtml:
-	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
-	@echo
-	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
-
-.PHONY: pickle
-pickle:
-	$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
-	@echo
-	@echo "Build finished; now you can process the pickle files."
-
-.PHONY: json
-json:
-	$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
-	@echo
-	@echo "Build finished; now you can process the JSON files."
-
-.PHONY: htmlhelp
-htmlhelp:
-	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
-	@echo
-	@echo "Build finished; now you can run HTML Help Workshop with the" \
-	      ".hhp project file in $(BUILDDIR)/htmlhelp."
-
-.PHONY: qthelp
-qthelp:
-	$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
-	@echo
-	@echo "Build finished; now you can run "qcollectiongenerator" with the" \
-	      ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
-	@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/FRR.qhcp"
-	@echo "To view the help file:"
-	@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/FRR.qhc"
-
-.PHONY: applehelp
-applehelp:
-	$(SPHINXBUILD) -b applehelp $(ALLSPHINXOPTS) $(BUILDDIR)/applehelp
-	@echo
-	@echo "Build finished. The help book is in $(BUILDDIR)/applehelp."
-	@echo "N.B. You won't be able to view it unless you put it in" \
-	      "~/Library/Documentation/Help or install it in your application" \
-	      "bundle."
-
-.PHONY: devhelp
-devhelp:
-	$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
-	@echo
-	@echo "Build finished."
-	@echo "To view the help file:"
-	@echo "# mkdir -p $$HOME/.local/share/devhelp/FRR"
-	@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/FRR"
-	@echo "# devhelp"
-
-.PHONY: epub
-epub:
-	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
-	@echo
-	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
-
-.PHONY: latex
-latex:
-	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
-	@echo
-	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
-	@echo "Run \`make' in that directory to run these through (pdf)latex" \
-	      "(use \`make latexpdf' here to do that automatically)."
-
-.PHONY: latexpdf
-latexpdf:
-	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
-	@echo "Running LaTeX files through pdflatex..."
-	$(MAKE) -C $(BUILDDIR)/latex all-pdf
-	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
-
-.PHONY: latexpdfja
-latexpdfja:
-	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
-	@echo "Running LaTeX files through platex and dvipdfmx..."
-	$(MAKE) -C $(BUILDDIR)/latex all-pdf-ja
-	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
-
-.PHONY: text
-text:
-	$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
-	@echo
-	@echo "Build finished. The text files are in $(BUILDDIR)/text."
-
-.PHONY: man
-man:
-	$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
-	@echo
-	@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
-
-.PHONY: texinfo
-texinfo:
-	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
-	@echo
-	@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
-	@echo "Run \`make' in that directory to run these through makeinfo" \
-	      "(use \`make info' here to do that automatically)."
-
-.PHONY: info
-info:
-	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
-	@echo "Running Texinfo files through makeinfo..."
-	make -C $(BUILDDIR)/texinfo info
-	@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
-
-.PHONY: gettext
-gettext:
-	$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
-	@echo
-	@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
-
-.PHONY: changes
-changes:
-	$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
-	@echo
-	@echo "The overview file is in $(BUILDDIR)/changes."
-
-.PHONY: linkcheck
-linkcheck:
-	$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
-	@echo
-	@echo "Link check complete; look for any errors in the above output " \
-	      "or in $(BUILDDIR)/linkcheck/output.txt."
-
-.PHONY: doctest
-doctest:
-	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
-	@echo "Testing of doctests in the sources finished, look at the " \
-	      "results in $(BUILDDIR)/doctest/output.txt."
-
-.PHONY: coverage
-coverage:
-	$(SPHINXBUILD) -b coverage $(ALLSPHINXOPTS) $(BUILDDIR)/coverage
-	@echo "Testing of coverage in the sources finished, look at the " \
-	      "results in $(BUILDDIR)/coverage/python.txt."
-
-.PHONY: xml
-xml:
-	$(SPHINXBUILD) -b xml $(ALLSPHINXOPTS) $(BUILDDIR)/xml
-	@echo
-	@echo "Build finished. The XML files are in $(BUILDDIR)/xml."
-
-.PHONY: pseudoxml
-pseudoxml:
-	$(SPHINXBUILD) -b pseudoxml $(ALLSPHINXOPTS) $(BUILDDIR)/pseudoxml
-	@echo
-	@echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."
diff --git a/doc/code/conf.py b/doc/code/conf.py
deleted file mode 100644
index 38be7f2fca..0000000000
--- a/doc/code/conf.py
+++ /dev/null
@@ -1,293 +0,0 @@
-# -*- coding: utf-8 -*-
-#
-# FRR documentation build configuration file, created by
-# sphinx-quickstart on Tue Jan 31 16:00:52 2017.
-#
-# This file is execfile()d with the current directory set to its
-# containing dir.
-#
-# Note that not all possible configuration values are present in this
-# autogenerated file.
-#
-# All configuration values have a default; values that are commented out
-# serve to show the default.
-
-import sys
-import os
-import re
-
-# If extensions (or modules to document with autodoc) are in another directory,
-# add these directories to sys.path here. If the directory is relative to the
-# documentation root, use os.path.abspath to make it absolute, like shown here.
-#sys.path.insert(0, os.path.abspath('.'))
-
-# -- General configuration ------------------------------------------------
-
-# If your documentation needs a minimal Sphinx version, state it here.
-#needs_sphinx = '1.0'
-
-# Add any Sphinx extension module names here, as strings. They can be
-# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
-# ones.
-extensions = ['sphinx.ext.todo']
-
-# Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
-
-# The suffix(es) of source filenames.
-# You can specify multiple suffix as a list of string:
-# source_suffix = ['.rst', '.md']
-source_suffix = '.rst'
-
-# The encoding of source files.
-#source_encoding = 'utf-8-sig'
-
-# The master toctree document.
-master_doc = 'index'
-
-# General information about the project.
-project = u'FRR'
-copyright = u'2017, FRR'
-author = u'FRR'
-
-# The version info for the project you're documenting, acts as replacement for
-# |version| and |release|, also used in various other places throughout the
-# built documents.
-
-# The short X.Y version.
-version = u'?.?'
-# The full version, including alpha/beta/rc tags.
-release = u'?.?-?'
-
-val = re.compile('^S\["([^"]+)"\]="(.*)"$')
-with open('../../config.status', 'r') as cfgstatus:
-    for ln in cfgstatus.readlines():
-        m = val.match(ln)
-        if m is None: continue
-        if m.group(1) == 'PACKAGE_VERSION':
-            release = m.group(2)
-            version = release.split('-')[0]
-
-# The language for content autogenerated by Sphinx. Refer to documentation
-# for a list of supported languages.
-#
-# This is also used if you do content translation via gettext catalogs.
-# Usually you set "language" from the command line for these cases.
-language = None
-
-# There are two options for replacing |today|: either, you set today to some
-# non-false value, then it is used:
-#today = ''
-# Else, today_fmt is used as the format for a strftime call.
-#today_fmt = '%B %d, %Y'
-
-# List of patterns, relative to source directory, that match files and
-# directories to ignore when looking for source files.
-exclude_patterns = ['_build']
-
-# The reST default role (used for this markup: `text`) to use for all
-# documents.
-#default_role = None
-
-# If true, '()' will be appended to :func: etc. cross-reference text.
-#add_function_parentheses = True
-
-# If true, the current module name will be prepended to all description
-# unit titles (such as .. function::).
-#add_module_names = True
-
-# If true, sectionauthor and moduleauthor directives will be shown in the
-# output. They are ignored by default.
-#show_authors = False
-
-# The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
-
-# A list of ignored prefixes for module index sorting.
-#modindex_common_prefix = []
-
-# If true, keep warnings as "system message" paragraphs in the built documents.
-#keep_warnings = False
-
-# If true, `todo` and `todoList` produce output, else they produce nothing.
-todo_include_todos = True
-
-
-# -- Options for HTML output ----------------------------------------------
-
-# The theme to use for HTML and HTML Help pages.  See the documentation for
-# a list of builtin themes.
-html_theme = 'sphinx_rtd_theme'
-
-# Theme options are theme-specific and customize the look and feel of a theme
-# further.  For a list of options available for each theme, see the
-# documentation.
-#html_theme_options = {}
-
-# Add any paths that contain custom themes here, relative to this directory.
-#html_theme_path = []
-
-# The name for this set of Sphinx documents.  If None, it defaults to
-# "<project> v<release> documentation".
-#html_title = None
-
-# A shorter title for the navigation bar.  Default is the same as html_title.
-#html_short_title = None
-
-# The name of an image file (relative to this directory) to place at the top
-# of the sidebar.
-#html_logo = None
-
-# The name of an image file (within the static path) to use as favicon of the
-# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
-# pixels large.
-#html_favicon = None
-
-# Add any paths that contain custom static files (such as style sheets) here,
-# relative to this directory. They are copied after the builtin static files,
-# so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
-
-# Add any extra paths that contain custom files (such as robots.txt or
-# .htaccess) here, relative to this directory. These files are copied
-# directly to the root of the documentation.
-#html_extra_path = []
-
-# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
-# using the given strftime format.
-#html_last_updated_fmt = '%b %d, %Y'
-
-# If true, SmartyPants will be used to convert quotes and dashes to
-# typographically correct entities.
-#html_use_smartypants = True
-
-# Custom sidebar templates, maps document names to template names.
-#html_sidebars = {}
-
-# Additional templates that should be rendered to pages, maps page names to
-# template names.
-#html_additional_pages = {}
-
-# If false, no module index is generated.
-#html_domain_indices = True
-
-# If false, no index is generated.
-#html_use_index = True
-
-# If true, the index is split into individual pages for each letter.
-#html_split_index = False
-
-# If true, links to the reST sources are added to the pages.
-#html_show_sourcelink = True
-
-# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
-#html_show_sphinx = True
-
-# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
-#html_show_copyright = True
-
-# If true, an OpenSearch description file will be output, and all pages will
-# contain a <link> tag referring to it.  The value of this option must be the
-# base URL from which the finished HTML is served.
-#html_use_opensearch = ''
-
-# This is the file name suffix for HTML files (e.g. ".xhtml").
-#html_file_suffix = None
-
-# Language to be used for generating the HTML full-text search index.
-# Sphinx supports the following languages:
-#   'da', 'de', 'en', 'es', 'fi', 'fr', 'hu', 'it', 'ja'
-#   'nl', 'no', 'pt', 'ro', 'ru', 'sv', 'tr'
-#html_search_language = 'en'
-
-# A dictionary with options for the search language support, empty by default.
-# Now only 'ja' uses this config value
-#html_search_options = {'type': 'default'}
-
-# The name of a javascript file (relative to the configuration directory) that
-# implements a search results scorer. If empty, the default will be used.
-#html_search_scorer = 'scorer.js'
-
-# Output file base name for HTML help builder.
-htmlhelp_basename = 'FRRdoc'
-
-# -- Options for LaTeX output ---------------------------------------------
-
-latex_elements = {
-# The paper size ('letterpaper' or 'a4paper').
-#'papersize': 'letterpaper',
-
-# The font size ('10pt', '11pt' or '12pt').
-#'pointsize': '10pt',
-
-# Additional stuff for the LaTeX preamble.
-#'preamble': '',
-
-# Latex figure (float) alignment
-#'figure_align': 'htbp',
-}
-
-# Grouping the document tree into LaTeX files. List of tuples
-# (source start file, target name, title,
-#  author, documentclass [howto, manual, or own class]).
-latex_documents = [
-    (master_doc, 'FRR.tex', u'FRR Documentation',
-     u'FRR', 'manual'),
-]
-
-# The name of an image file (relative to this directory) to place at the top of
-# the title page.
-#latex_logo = None
-
-# For "manual" documents, if this is true, then toplevel headings are parts,
-# not chapters.
-#latex_use_parts = False
-
-# If true, show page references after internal links.
-#latex_show_pagerefs = False
-
-# If true, show URL addresses after external links.
-#latex_show_urls = False
-
-# Documents to append as an appendix to all manuals.
-#latex_appendices = []
-
-# If false, no module index is generated.
-#latex_domain_indices = True
-
-
-# -- Options for manual page output ---------------------------------------
-
-# One entry per manual page. List of tuples
-# (source start file, name, description, authors, manual section).
-man_pages = [
-    (master_doc, 'frr', u'FRR Documentation',
-     [author], 1)
-]
-
-# If true, show URL addresses after external links.
-#man_show_urls = False
-
-
-# -- Options for Texinfo output -------------------------------------------
-
-# Grouping the document tree into Texinfo files. List of tuples
-# (source start file, target name, title, author,
-#  dir menu entry, description, category)
-texinfo_documents = [
-    (master_doc, 'FRR', u'FRR Documentation',
-     author, 'FRR', 'One line description of project.',
-     'Miscellaneous'),
-]
-
-# Documents to append as an appendix to all manuals.
-#texinfo_appendices = []
-
-# If false, no module index is generated.
-#texinfo_domain_indices = True
-
-# How to display URL addresses: 'footnote', 'no', or 'inline'.
-#texinfo_show_urls = 'footnote'
-
-# If true, do not generate a @detailmenu in the "Top" node's menu.
-#texinfo_no_detailmenu = False
diff --git a/doc/code/hooks.rst b/doc/code/hooks.rst
deleted file mode 100644
index 0afa297aa7..0000000000
--- a/doc/code/hooks.rst
+++ /dev/null
@@ -1,171 +0,0 @@
-.. highlight:: c
-
-Hooks
-=====
-
-Libfrr provides type-safe subscribable hook points where other pieces of
-code can add one or more callback functions.  "type-safe" in this case
-applies to the function pointers used for subscriptions.  The
-implementations checks (at compile-time) wheter a callback to be added has
-the appropriate function signature (parameters) for the hook.
-
-Example:
-
-.. code-block:: c
-     :caption: mydaemon.h
-
-     #include "hook.h"
-     DECLARE_HOOK(some_update_event, (struct eventinfo *info), (info))
-
-.. code-block:: c
-     :caption: mydaemon.c
-
-     #include "mydaemon.h"
-     DEFINE_HOOK(some_update_event, (struct eventinfo *info), (info))
-     ...
-     hook_call(some_update_event, info);
-
-.. code-block:: c
-     :caption: mymodule.c
-
-     #include "mydaemon.h"
-     static int event_handler(struct eventinfo *info);
-     ...
-     hook_register(some_update_event, event_handler);
-
-Do not use parameter names starting with "hook", these can collide with
-names used by the hook code itself.
-
-
-Return values
--------------
-
-Callbacks to be placed on hooks always return "int" for now;  hook_call will
-sum up the return values from each called function.  (The default is 0 if no
-callbacks are registered.)
-
-There are no pre-defined semantics for the value, in most cases it is
-ignored.  For success/failure indication, 0 should be success, and
-handlers should make sure to only return 0 or 1 (not -1 or other values).
-
-There is no built-in way to abort executing a chain after a failure of one
-of the callbacks.  If this is needed, the hook can use an extra
-``bool *aborted`` argument.
-
-
-Priorities
-----------
-
-Hooks support a "priority" value for ordering registered calls
-relative to each other.  The priority is a signed integer where lower
-values are called earlier.  There are also "Koohs", which is hooks with
-reverse priority ordering (for cleanup/deinit hooks, so you can use the
-same priority value).
-
-Recommended priority value ranges are:
-
-======================== ===================================================
-Range                    Usage
------------------------- ---------------------------------------------------
- -999 ...     0 ...  999 main executable / daemon, or library
-
--1999 ... -1000          modules registering calls that should run before
-                         the daemon's bits
-
-1000 ... 1999            modules' calls that should run after daemon's
-                         (includes default value: 1000)
-======================== ===================================================
-
-Note: the default value is 1000, based on the following 2 expectations:
-
-- most hook_register() usage will be in loadable modules
-- usage of hook_register() in the daemon itself may need relative ordering
-  to itself, making an explicit value the expected case
-
-The priority value is passed as extra argument on hook_register_prio() /
-hook_register_arg_prio().  Whether a hook runs in reverse is determined
-solely by the code defining / calling the hook.  (DECLARE_KOOH is actually
-the same thing as DECLARE_HOOK, it's just there to make it obvious.)
-
-
-Definition
-----------
-
-.. c:macro:: DECLARE_HOOK(name, arglist, passlist)
-.. c:macro:: DECLARE_KOOH(name, arglist, passlist)
-
-   :param name: Name of the hook to be defined
-   :param arglist: Function definition style parameter list in braces.
-   :param passlist: List of the same parameters without their types.
-
-   Note:  the second and third macro args must be the hook function's
-   parameter list, with the same names for each parameter.  The second
-   macro arg is with types (used for defining things), the third arg is
-   just the names (used for passing along parameters).
-
-   This macro must be placed in a header file;  this header file must be
-   included to register a callback on the hook.
-
-   Examples:
-
-   .. code-block:: c
-
-      DECLARE_HOOK(foo, (), ())
-      DECLARE_HOOK(bar, (int arg), (arg))
-      DECLARE_HOOK(baz, (const void *x, in_addr_t y), (x, y))
-
-.. c:macro:: DEFINE_HOOK(name, arglist, passlist)
-
-   Implements an hook.  Each ``DECLARE_HOOK`` must have be accompanied by
-   exactly one ``DEFINE_HOOK``, which needs to be placed in a source file.
-   **The hook can only be called from this source file.**  This is intentional
-   to avoid overloading and/or misusing hooks for distinct purposes.
-
-   The compiled source file will include a global symbol with the name of the
-   hook prefixed by `_hook_`.  Trying to register a callback for a hook that
-   doesn't exist will therefore result in a linker error, or a module
-   load-time error for dynamic modules.
-
-.. c:macro:: DEFINE_KOOH(name, arglist, passlist)
-
-   Same as ``DEFINE_HOOK``, but the sense of priorities / order of callbacks
-   is reversed.  This should be used for cleanup hooks.
-
-.. c:function:: int hook_call(name, ...)
-
-   Calls the specified named hook.  Parameters to the hook are passed right
-   after the hook name, e.g.:
-
-   .. code-block:: c
-
-      hook_call(foo);
-      hook_call(bar, 0);
-      hook_call(baz, NULL, INADDR_ANY);
-
-   Returns the sum of return values from all callbacks.  The ``DEFINE_HOOK``
-   statement for the hook must be placed in the file before any ``hook_call``
-   use of the hook.
-
-
-Callback registration
----------------------
-
-.. c:function:: void hook_register(name, int (*callback)(...))
-.. c:function:: void hook_register_prio(name, int priority, int (*callback)(...))
-.. c:function:: void hook_register_arg(name, int (*callback)(void *arg, ...), void *arg)
-.. c:function:: void hook_register_arg_prio(name, int priority, int (*callback)(void *arg, ...), void *arg)
-
-   Register a callback with an hook.  If the caller needs to pass an extra
-   argument to the callback, the _arg variant can be used and the extra
-   parameter will be passed as first argument to the callback.  There is no
-   typechecking for this argument.
-
-   The priority value is used as described above.  The variants without a
-   priority parameter use 1000 as priority value.
-
-.. c:function:: void hook_unregister(name, int (*callback)(...))
-.. c:function:: void hook_unregister_arg(name, int (*callback)(void *arg, ...), void *arg)
-
-   Removes a previously registered callback from a hook.  Note that there
-   is no _prio variant of these calls.  The priority value is only used during
-   registration.
diff --git a/doc/code/index.rst b/doc/code/index.rst
deleted file mode 100644
index 79647d0b92..0000000000
--- a/doc/code/index.rst
+++ /dev/null
@@ -1,18 +0,0 @@
-Welcome to FRR's documentation!
-===============================
-
-Contents:
-
-.. toctree::
-   :maxdepth: 2
-
-   library
-
-
-Indices and tables
-==================
-
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`
-
diff --git a/doc/code/library.rst b/doc/code/library.rst
deleted file mode 100644
index dd46021db8..0000000000
--- a/doc/code/library.rst
+++ /dev/null
@@ -1,10 +0,0 @@
-libfrr library facilities
-=========================
-
-.. toctree::
-   :maxdepth: 2
-
-   memtypes
-   hooks
-
-
diff --git a/doc/code/memtypes.rst b/doc/code/memtypes.rst
deleted file mode 100644
index 62d211e864..0000000000
--- a/doc/code/memtypes.rst
+++ /dev/null
@@ -1,117 +0,0 @@
-.. highlight:: c
-
-Memtypes
-========
-
-FRR includes wrappers arround ``malloc()`` and ``free()`` that count the number
-of objects currently allocated, for each of a defined ``MTYPE``.
-
-To this extent, there are `memory groups` and `memory types`.  Each memory
-type must belong to a memory group, this is used just to provide some basic
-structure.
-
-Example:
-
-.. code-block:: c
-     :caption: mydaemon.h
-
-     DECLARE_MGROUP(MYDAEMON)
-     DECLARE_MTYPE(MYNEIGHBOR)
-
-.. code-block:: c
-     :caption: mydaemon.c
-
-     DEFINE_MGROUP(      MYDAEMON, "My daemon's memory")
-     DEFINE_MTYPE(       MYDAEMON, MYNEIGHBOR,     "Neighbor entry")
-     DEFINE_MTYPE_STATIC(MYDAEMON, MYNEIGHBORNAME, "Neighbor name")
-
-     struct neigh *neighbor_new(const char *name)
-     {
-        struct neigh *n = XMALLOC(MYNEIGHBOR, sizeof(*n));
-        n->name = XSTRDUP(MYNEIGHBORNAME, name);
-        return n;
-     }
-
-     void neighbor_free(struct neigh *n)
-     {
-        XFREE(MYNEIGHBORNAME, n->name);
-        XFREE(MYNEIGHBOR, n);
-     }
-
-
-Definition
-----------
-
-.. c:macro:: DECLARE_MGROUP(name)
-
-   This macro forward-declares a memory group and should be placed in a
-   ``.h`` file.  It expands to an ``extern struct memgroup`` statement.
-
-.. c:macro:: DEFINE_MGROUP(mname, description)
-
-   Defines/implements a memory group.  Must be placed into exactly one ``.c``
-   file (multiple inclusion will result in a link-time symbol conflict).
-
-   Contains additional logic (constructor and destructor) to register the
-   memory group in a global list.
-
-.. c:macro:: DECLARE_MTYPE(name)
-
-   Forward-declares a memory type and makes ``MTYPE_name`` available for use.
-   Note that the ``MTYPE_`` prefix must not be included in the name, it is
-   automatically prefixed.
-
-   ``MTYPE_name`` is created as a `static const` symbol, i.e. a compile-time
-   constant.  It refers to an ``extern struct memtype _mt_name``, where `name`
-   is replaced with the actual name.
-
-.. c:macro:: DEFINE_MTYPE(group, name, description)
-
-   Define/implement a memory type, must be placed into exactly one ``.c``
-   file (multiple inclusion will result in a link-time symbol conflict).
-
-   Like ``DEFINE_MGROUP``, this contains actual code to register the MTYPE
-   under its group.
-
-.. c:macro:: DEFINE_MTYPE_STATIC(group, name, description)
-
-   Same as ``DEFINE_MTYPE``, but the ``DEFINE_MTYPE_STATIC`` variant places
-   the C ``static`` keyword on the definition, restricting the MTYPE's
-   availability to the current source file.  This should be appropriate in
-   >80% of cases.
-
-   .. todo::
-   
-      Daemons currently have ``daemon_memory.[ch]`` files listing all of
-      their MTYPEs.  This is not how it should be, most of these types
-      should be moved into the appropriate files where they are used.
-      Only a few MTYPEs should remain non-static after that.
-
-
-Usage
------
-
-.. c:function:: void *XMALLOC(struct memtype *mtype, size_t size)
-
-.. c:function:: void *XCALLOC(struct memtype *mtype, size_t size)
-
-.. c:function:: void *XSTRDUP(struct memtype *mtype, size_t size)
-
-   Allocation wrappers for malloc/calloc/realloc/strdup, taking an extra
-   mtype parameter.
-
-.. c:function:: void *XREALLOC(struct memtype *mtype, void *ptr, size_t size)
-
-   Wrapper around realloc() with MTYPE tracking.  Note that ``ptr`` may
-   be NULL, in which case the function does the same as XMALLOC (regardless
-   of whether the system realloc() supports this.)
-
-.. c:function:: void XFREE(struct memtype *mtype, void *ptr)
-
-   Wrapper around free(), again taking an extra mtype parameter.  This is
-   actually a macro, with the following additional properties:
-
-   - the macro contains ``ptr = NULL``
-   - if ptr is NULL, no operation is performed (as is guaranteed by system
-     implementations.)  Do not surround XFREE with ``if (ptr != NULL)``
-     checks.