[MERGED] libosmo-netif[master]: Add minimal doxygen documentation for stream + datagram modules

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Harald Welte gerrit-no-reply at lists.osmocom.org
Sat Apr 8 19:55:06 UTC 2017


Harald Welte has submitted this change and it was merged.

Change subject: Add minimal doxygen documentation for stream + datagram modules
......................................................................


Add minimal doxygen documentation for stream + datagram modules

We should have doxygen documentation for all libosmo-* APIs.

libosmo-netif is currently devoid of any API docs. Let's start with the
stream and datagram socket related functions.

Change-Id: I589a5e60d9df2b8a65fbaf68f80e3ae0039d8c2a
---
M .gitignore
A Doxyfile.in
M Makefile.am
M configure.ac
M include/osmocom/netif/stream.h
M src/datagram.c
M src/stream.c
7 files changed, 2,018 insertions(+), 4 deletions(-)

Approvals:
  Harald Welte: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/.gitignore b/.gitignore
index aa38852..2d582bd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,3 +49,5 @@
 examples/rtp-udp-test-server
 examples/stream-client
 examples/stream-server
+
+Doxyfile
diff --git a/Doxyfile.in b/Doxyfile.in
new file mode 100644
index 0000000..3843f79
--- /dev/null
+++ b/Doxyfile.in
@@ -0,0 +1,1716 @@
+# Doxyfile 1.7.4
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
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+# For lists items can also be appended using:
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+# Values that contain spaces should be placed between quotes (" ").
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+#---------------------------------------------------------------------------
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+
+DOXYFILE_ENCODING      = UTF-8
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+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded
+# by quotes) that should identify the project.
+
+PROJECT_NAME           = libosmo-netif
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number.
+# This could be handy for archiving the generated documentation or
+# if some version control system is used.
+
+PROJECT_NUMBER         = @VERSION@
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+# Using the PROJECT_BRIEF tag one can provide an optional one line description
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+PROJECT_BRIEF          = "Osmocom network interface library"
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+# With the PROJECT_LOGO tag one can specify an logo or icon that is
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+# Doxygen will copy the logo to the output directory.
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+PROJECT_LOGO           =
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+OUTPUT_DIRECTORY       = doc
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+CREATE_SUBDIRS         = NO
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+INLINE_GROUPED_CLASSES = NO
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+WARNINGS               = YES
+
+# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings
+# for undocumented members. If EXTRACT_ALL is set to YES then this flag will
+# automatically be disabled.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some
+# parameters in a documented function, or documenting parameters that
+# don't exist or using markup commands wrongly.
+
+WARN_IF_DOC_ERROR      = YES
+
+# The WARN_NO_PARAMDOC option can be enabled to get warnings for
+# functions that are documented, but have no documentation for their parameters
+# or return value. If set to NO (the default) doxygen will only warn about
+# wrong or incomplete parameter documentation, but not about the absence of
+# documentation.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that
+# doxygen can produce. The string should contain the $file, $line, and $text
+# tags, which will be replaced by the file and line number from which the
+# warning originated and the warning text. Optionally the format may contain
+# $version, which will be replaced by the version of the file (if it could
+# be obtained via FILE_VERSION_FILTER)
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning
+# and error messages should be written. If left blank the output is written
+# to stderr.
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag can be used to specify the files and/or directories that contain
+# documented source files. You may enter file names like "myfile.cpp" or
+# directories like "/usr/src/myproject". Separate the files or directories
+# with spaces.
+
+INPUT                  = @srcdir@/include/osmocom/netif @srcdir@/src
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is
+# also the default input encoding. Doxygen uses libiconv (or the iconv built
+# into libc) for the transcoding. See http://www.gnu.org/software/libiconv for
+# the list of possible encodings.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
+# and *.h) to filter out the source-files in the directories. If left
+# blank the following patterns are tested:
+# *.c *.cc *.cxx *.cpp *.c++ *.d *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh
+# *.hxx *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.dox *.py
+# *.f90 *.f *.for *.vhd *.vhdl
+
+FILE_PATTERNS          =
+
+# The RECURSIVE tag can be used to turn specify whether or not subdirectories
+# should be searched for input files as well. Possible values are YES and NO.
+# If left blank NO is used.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+
+EXCLUDE                =
+
+# The EXCLUDE_SYMLINKS tag can be used select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories. Note that the wildcards are matched
+# against the file with absolute path, so to exclude all test directories
+# for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or
+# directories that contain example code fragments that are included (see
+# the \include command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
+# and *.h) to filter out the source-files in the directories. If left
+# blank all files are included.
+
+EXAMPLE_PATTERNS       =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude
+# commands irrespective of the value of the RECURSIVE tag.
+# Possible values are YES and NO. If left blank NO is used.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or
+# directories that contain image that are included in the documentation (see
+# the \image command).
+
+# IMAGE_PATH             = images/
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command <filter> <input-file>, where <filter>
+# is the value of the INPUT_FILTER tag, and <input-file> is the name of an
+# input file. Doxygen will then use the output that the filter program writes
+# to standard output.
+# If FILTER_PATTERNS is specified, this tag will be
+# ignored.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis.
+# Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match.
+# The filters are a list of the form:
+# pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further
+# info on how filters are used. If FILTER_PATTERNS is empty or if
+# non of the patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER) will be used to filter the input files when producing source
+# files to browse (i.e. when SOURCE_BROWSER is set to YES).
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any)
+# and it is also possible to disable source filtering for a specific pattern
+# using *.ext= (so without naming a filter). This option only has effect when
+# FILTER_SOURCE_FILES is enabled.
+
+FILTER_SOURCE_PATTERNS =
+
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will
+# be generated. Documented entities will be cross-referenced with these sources.
+# Note: To get rid of all source code in the generated output, make sure also
+# VERBATIM_HEADERS is set to NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body
+# of functions and classes directly in the documentation.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct
+# doxygen to hide any special comment blocks from generated source code
+# fragments. Normal C and C++ comments will always remain visible.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES
+# then for each documented function all documented
+# functions referencing it will be listed.
+
+REFERENCED_BY_RELATION = YES
+
+# If the REFERENCES_RELATION tag is set to YES
+# then for each documented function all documented entities
+# called/used by that function will be listed.
+
+REFERENCES_RELATION    = YES
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES (the default)
+# and SOURCE_BROWSER tag is set to YES, then the hyperlinks from
+# functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will
+# link to the source code.
+# Otherwise they will link to the documentation.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code
+# will point to the HTML generated by the htags(1) tool instead of doxygen
+# built-in source browser. The htags tool is part of GNU's global source
+# tagging system (see http://www.gnu.org/software/global/global.html). You
+# will need version 4.8.6 or higher.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen
+# will generate a verbatim copy of the header file for each class for
+# which an include is specified. Set to NO to disable this.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index
+# of all compounds will be generated. Enable this if the project
+# contains a lot of classes, structs, unions or interfaces.
+
+ALPHABETICAL_INDEX     = NO
+
+# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then
+# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns
+# in which this list will be split (can be a number in the range [1..20])
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all
+# classes will be put under the same header in the alphabetical index.
+# The IGNORE_PREFIX tag can be used to specify one or more prefixes that
+# should be ignored while generating the index headers.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES (the default) Doxygen will
+# generate HTML output.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `html' will be used as the default path.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for
+# each generated HTML page (for example: .htm,.php,.asp). If it is left blank
+# doxygen will generate files with .html extension.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a personal HTML header for
+# each generated HTML page. If it is left blank doxygen will generate a
+# standard header. Note that when using a custom header you are responsible
+# for the proper inclusion of any scripts and style sheets that doxygen
+# needs, which is dependent on the configuration options used.
+# It is adviced to generate a default header using "doxygen -w html
+# header.html footer.html stylesheet.css YourConfigFile" and then modify
+# that header. Note that the header is subject to change so you typically
+# have to redo this when upgrading to a newer version of doxygen or when changing the value of configuration settings such as GENERATE_TREEVIEW!
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a personal HTML footer for
+# each generated HTML page. If it is left blank doxygen will generate a
+# standard footer.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading
+# style sheet that is used by each HTML page. It can be used to
+# fine-tune the look of the HTML output. If the tag is left blank doxygen
+# will generate a default style sheet. Note that doxygen will try to copy
+# the style sheet file to the HTML output directory, so don't put your own
+# stylesheet in the HTML output directory as well, or it will be erased!
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath$ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that
+# the files will be copied as-is; there are no commands or markers available.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output.
+# Doxygen will adjust the colors in the stylesheet and background images
+# according to this color. Hue is specified as an angle on a colorwheel,
+# see http://en.wikipedia.org/wiki/Hue for more information.
+# For instance the value 0 represents red, 60 is yellow, 120 is green,
+# 180 is cyan, 240 is blue, 300 purple, and 360 is red again.
+# The allowed range is 0 to 359.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of
+# the colors in the HTML output. For a value of 0 the output will use
+# grayscales only. A value of 255 will produce the most vivid colors.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to
+# the luminance component of the colors in the HTML output. Values below
+# 100 gradually make the output lighter, whereas values above 100 make
+# the output darker. The value divided by 100 is the actual gamma applied,
+# so 80 represents a gamma of 0.8, The value 220 represents a gamma of 2.2,
+# and 100 does not change the gamma.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting
+# this to NO can help when comparing the output of multiple runs.
+
+HTML_TIMESTAMP         = YES
+
+# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes,
+# files or namespaces will be aligned in HTML using tables. If set to
+# NO a bullet list will be used.
+
+HTML_ALIGN_MEMBERS     = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded. For this to work a browser that supports
+# JavaScript and DHTML is required (for instance Mozilla 1.0+, Firefox
+# Netscape 6.0+, Internet explorer 5.0+, Konqueror, or Safari).
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files
+# will be generated that can be used as input for Apple's Xcode 3
+# integrated development environment, introduced with OSX 10.5 (Leopard).
+# To create a documentation set, doxygen will generate a Makefile in the
+# HTML output directory. Running make will produce the docset in that
+# directory and running "make install" will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find
+# it at startup.
+# See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+
+GENERATE_DOCSET        = NO
+
+# When GENERATE_DOCSET tag is set to YES, this tag determines the name of the
+# feed. A documentation feed provides an umbrella under which multiple
+# documentation sets from a single provider (such as a company or product suite)
+# can be grouped.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# When GENERATE_DOCSET tag is set to YES, this tag specifies a string that
+# should uniquely identify the documentation set bundle. This should be a
+# reverse domain-name style string, e.g. com.mycompany.MyDocSet. Doxygen
+# will append .docset to the name.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# When GENERATE_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The GENERATE_PUBLISHER_NAME tag identifies the documentation publisher.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES, additional index files
+# will be generated that can be used as input for tools like the
+# Microsoft HTML help workshop to generate a compiled HTML help file (.chm)
+# of the generated HTML documentation.
+
+GENERATE_HTMLHELP      = NO
+
+# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can
+# be used to specify the file name of the resulting .chm file. You
+# can add a path in front of the file if the result should not be
+# written to the html output directory.
+
+CHM_FILE               =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can
+# be used to specify the location (absolute path including file name) of
+# the HTML help compiler (hhc.exe). If non-empty doxygen will try to run
+# the HTML help compiler on the generated index.hhp.
+
+HHC_LOCATION           =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag
+# controls if a separate .chi index file is generated (YES) or that
+# it should be included in the master .chm file (NO).
+
+GENERATE_CHI           = NO
+
+# If the GENERATE_HTMLHELP tag is set to YES, the CHM_INDEX_ENCODING
+# is used to encode HtmlHelp index (hhk), content (hhc) and project file
+# content.
+
+CHM_INDEX_ENCODING     =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag
+# controls whether a binary table of contents is generated (YES) or a
+# normal table of contents (NO) in the .chm file.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members
+# to the contents of the HTML help documentation and to the tree view.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated
+# that can be used as input for Qt's qhelpgenerator to generate a
+# Qt Compressed Help (.qch) of the generated HTML documentation.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can
+# be used to specify the file name of the resulting .qch file.
+# The path specified is relative to the HTML output folder.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating
+# Qt Help Project output. For more information please see
+# http://doc.trolltech.com/qthelpproject.html#namespace
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating
+# Qt Help Project output. For more information please see
+# http://doc.trolltech.com/qthelpproject.html#virtual-folders
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If QHP_CUST_FILTER_NAME is set, it specifies the name of a custom filter to
+# add. For more information please see
+# http://doc.trolltech.com/qthelpproject.html#custom-filters
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILT_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see
+# <a href="http://doc.trolltech.com/qthelpproject.html#custom-filters">
+# Qt Help Project / Custom Filters</a>.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's
+# filter section matches.
+# <a href="http://doc.trolltech.com/qthelpproject.html#filter-attributes">
+# Qt Help Project / Filter Attributes</a>.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# If the GENERATE_QHP tag is set to YES, the QHG_LOCATION tag can
+# be used to specify the location of Qt's qhelpgenerator.
+# If non-empty doxygen will try to run qhelpgenerator on the generated
+# .qhp file.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files
+#  will be generated, which together with the HTML files, form an Eclipse help
+# plugin. To install this plugin and make it available under the help contents
+# menu in Eclipse, the contents of the directory containing the HTML and XML
+# files needs to be copied into the plugins directory of eclipse. The name of
+# the directory within the plugins directory should be the same as
+# the ECLIPSE_DOC_ID value. After copying Eclipse needs to be restarted before
+# the help appears.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have
+# this name.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# The DISABLE_INDEX tag can be used to turn on/off the condensed index at
+# top of each HTML page. The value NO (the default) enables the index and
+# the value YES disables it.
+
+DISABLE_INDEX          = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values
+# (range [0,1..20]) that doxygen will group on one line in the generated HTML
+# documentation. Note that a value of 0 will completely suppress the enum
+# values from appearing in the overview section.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information.
+# If the tag value is set to YES, a side panel will be generated
+# containing a tree-like index structure (just like the one that
+# is generated for HTML Help). For this to work a browser that supports
+# JavaScript, DHTML, CSS and frames is required (i.e. any modern browser).
+# Windows users are probably better off using the HTML help feature.
+
+GENERATE_TREEVIEW      = YES
+
+# By enabling USE_INLINE_TREES, doxygen will generate the Groups, Directories,
+# and Class Hierarchy pages using a tree view instead of an ordered list.
+
+USE_INLINE_TREES       = NO
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be
+# used to set the initial width (in pixels) of the frame in which the tree
+# is shown.
+
+TREEVIEW_WIDTH         = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open
+# links to external symbols imported via tag files in a separate window.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of Latex formulas included
+# as images in the HTML documentation. The default is 10. Note that
+# when you change the font size after a successful doxygen run you need
+# to manually remove any form_*.png images from the HTML output directory
+# to force them to be regenerated.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are
+# not supported properly for IE 6.0, but are supported on all modern browsers.
+# Note that when changing this option you need to delete any form_*.png files
+# in the HTML output before the changes have effect.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax
+# (see http://www.mathjax.org) which uses client side Javascript for the
+# rendering instead of using prerendered bitmaps. Use this if you do not
+# have LaTeX installed or if you want to formulas look prettier in the HTML
+# output. When enabled you also need to install MathJax separately and
+# configure the path to it using the MATHJAX_RELPATH option.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you need to specify the location relative to the
+# HTML output directory using the MATHJAX_RELPATH option. The destination
+# directory should contain the MathJax.js script. For instance, if the mathjax
+# directory is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the
+# mathjax.org site, so you can quickly see the result without installing
+# MathJax, but it is strongly recommended to install a local copy of MathJax
+# before deployment.
+
+MATHJAX_RELPATH        = http://www.mathjax.org/mathjax
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box
+# for the HTML output. The underlying search engine uses javascript
+# and DHTML and should work on any modern browser. Note that when using
+# HTML help (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets
+# (GENERATE_DOCSET) there is already a search function so this one should
+# typically be disabled. For large projects the javascript based search engine
+# can be slow, then enabling SERVER_BASED_SEARCH may provide a better solution.
+
+SEARCHENGINE           = YES
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a PHP enabled web server instead of at the web client
+# using Javascript. Doxygen will generate the search PHP script and index
+# file to put on the web server. The advantage of the server
+# based approach is that it scales better to large projects and allows
+# full text search. The disadvantages are that it is more difficult to setup
+# and does not have live searching capabilities.
+
+SERVER_BASED_SEARCH    = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will
+# generate Latex output.
+
+GENERATE_LATEX         = YES
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `latex' will be used as the default path.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked. If left blank `latex' will be used as the default command name.
+# Note that when enabling USE_PDFLATEX this option is only used for
+# generating bitmaps for formulas in the HTML output, but not in the
+# Makefile that is written to the output directory.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to
+# generate index for LaTeX. If left blank `makeindex' will be used as the
+# default command name.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact
+# LaTeX documents. This may be useful for small projects and may help to
+# save some trees in general.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used
+# by the printer. Possible values are: a4, letter, legal and
+# executive. If left blank a4wide will be used.
+
+PAPER_TYPE             = a4wide
+
+# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX
+# packages that should be included in the LaTeX output.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for
+# the generated latex document. The header should contain everything until
+# the first chapter. If it is left blank doxygen will generate a
+# standard header. Notice: only use this tag if you know what you are doing!
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for
+# the generated latex document. The footer should contain everything after
+# the last chapter. If it is left blank doxygen will generate a
+# standard footer. Notice: only use this tag if you know what you are doing!
+
+LATEX_FOOTER           =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated
+# is prepared for conversion to pdf (using ps2pdf). The pdf file will
+# contain links (just like the HTML output) instead of page references
+# This makes the output suitable for online browsing using a pdf viewer.
+
+PDF_HYPERLINKS         = NO
+
+# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of
+# plain latex in the generated Makefile. Set this option to YES to get a
+# higher quality PDF documentation.
+
+USE_PDFLATEX           = NO
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode.
+# command to the generated LaTeX files. This will instruct LaTeX to keep
+# running if errors occur, instead of asking the user for help.
+# This option is also used when generating formulas in HTML.
+
+LATEX_BATCHMODE        = NO
+
+# If LATEX_HIDE_INDICES is set to YES then doxygen will not
+# include the index chapters (such as File Index, Compound Index, etc.)
+# in the output.
+
+LATEX_HIDE_INDICES     = NO
+
+# If LATEX_SOURCE_CODE is set to YES then doxygen will include
+# source code with syntax highlighting in the LaTeX output.
+# Note that which sources are shown also depends on other settings
+# such as SOURCE_BROWSER.
+
+LATEX_SOURCE_CODE      = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output
+# The RTF output is optimized for Word 97 and may not look very pretty with
+# other RTF readers or editors.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `rtf' will be used as the default path.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES Doxygen generates more compact
+# RTF documents. This may be useful for small projects and may help to
+# save some trees in general.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated
+# will contain hyperlink fields. The RTF file will
+# contain links (just like the HTML output) instead of page references.
+# This makes the output suitable for online browsing using WORD or other
+# programs which support those fields.
+# Note: wordpad (write) and others do not support links.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's
+# config file, i.e. a series of assignments. You only have to provide
+# replacements, missing definitions are set to their default value.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an rtf document.
+# Syntax is similar to doxygen's config file.
+
+RTF_EXTENSIONS_FILE    =
+
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES (the default) Doxygen will
+# generate man pages
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `man' will be used as the default path.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to
+# the generated man pages (default is the subroutine's section .3)
+
+MAN_EXTENSION          = .3
+
+# If the MAN_LINKS tag is set to YES and Doxygen generates man output,
+# then it will generate one additional man file for each entity
+# documented in the real man page(s). These additional files
+# only source the real man page, but without them the man command
+# would be unable to find the correct page. The default is NO.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES Doxygen will
+# generate an XML file that captures the structure of
+# the code including all documentation.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `xml' will be used as the default path.
+
+XML_OUTPUT             = xml
+
+# The XML_SCHEMA tag can be used to specify an XML schema,
+# which can be used by a validating XML parser to check the
+# syntax of the XML files.
+
+XML_SCHEMA             =
+
+# The XML_DTD tag can be used to specify an XML DTD,
+# which can be used by a validating XML parser to check the
+# syntax of the XML files.
+
+XML_DTD                =
+
+# If the XML_PROGRAMLISTING tag is set to YES Doxygen will
+# dump the program listings (including syntax highlighting
+# and cross-referencing information) to the XML output. Note that
+# enabling this will significantly increase the size of the XML output.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will
+# generate an AutoGen Definitions (see autogen.sf.net) file
+# that captures the structure of the code including all
+# documentation. Note that this feature is still experimental
+# and incomplete at the moment.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES Doxygen will
+# generate a Perl module file that captures the structure of
+# the code including all documentation. Note that this
+# feature is still experimental and incomplete at the
+# moment.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES Doxygen will generate
+# the necessary Makefile rules, Perl scripts and LaTeX code to be able
+# to generate PDF and DVI output from the Perl module output.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be
+# nicely formatted so it can be parsed by a human reader.
+# This is useful
+# if you want to understand what is going on.
+# On the other hand, if this
+# tag is set to NO the size of the Perl module output will be much smaller
+# and Perl will parse it just the same.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file
+# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX.
+# This is useful so different doxyrules.make files included by the same
+# Makefile don't overwrite each other's variables.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will
+# evaluate all C-preprocessor directives found in the sources and include
+# files.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro
+# names in the source code. If set to NO (the default) only conditional
+# compilation will be performed. Macro expansion can be done in a controlled
+# way by setting EXPAND_ONLY_PREDEF to YES.
+
+MACRO_EXPANSION        = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES
+# then the macro expansion is limited to the macros specified with the
+# PREDEFINED and EXPAND_AS_DEFINED tags.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files
+# pointed to by INCLUDE_PATH will be searched when a #include is found.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by
+# the preprocessor.
+
+INCLUDE_PATH           =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will
+# be used.
+
+INCLUDE_FILE_PATTERNS  =
+
+# The PREDEFINED tag can be used to specify one or more macro names that
+# are defined before the preprocessor is started (similar to the -D option of
+# gcc). The argument of the tag is a list of macros of the form: name
+# or name=definition (no spaces). If the definition and the = are
+# omitted =1 is assumed. To prevent a macro definition from being
+# undefined via #undef or recursively expanded use the := operator
+# instead of the = operator.
+
+PREDEFINED             =
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
+# this tag can be used to specify a list of macro names that should be expanded.
+# The macro definition that is found in the sources will be used.
+# Use the PREDEFINED tag if you want to use a different macro definition that
+# overrules the definition found in the source code.
+
+EXPAND_AS_DEFINED      =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then
+# doxygen's preprocessor will remove all references to function-like macros
+# that are alone on a line, have an all uppercase name, and do not end with a
+# semicolon, because these will confuse the parser if not removed.
+
+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
+# Configuration::additions related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES option can be used to specify one or more tagfiles.
+# Optionally an initial location of the external documentation
+# can be added for each tagfile. The format of a tag file without
+# this location is as follows:
+#
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+#
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where "loc1" and "loc2" can be relative or absolute paths or
+# URLs. If a location is present for each tag, the installdox tool
+# does not have to be run to correct the links.
+# Note that each tag file must have a unique name
+# (where the name does NOT include the path)
+# If a tag file is not located in the directory in which doxygen
+# is run, you must also specify the path to the tagfile here.
+
+TAGFILES               =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create
+# a tag file that is based on the input files it reads.
+
+GENERATE_TAGFILE       = doc/libosmo-netif.tag
+
+# If the ALLEXTERNALS tag is set to YES all external classes will be listed
+# in the class index. If set to NO only the inherited external classes
+# will be listed.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed
+# in the modules index. If set to NO, only the current project's groups will
+# be listed.
+
+EXTERNAL_GROUPS        = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of `which perl').
+
+PERL_PATH              = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will
+# generate a inheritance diagram (in HTML, RTF and LaTeX) for classes with base
+# or super classes. Setting the tag to NO turns the diagrams off. Note that
+# this option also works with HAVE_DOT disabled, but it is recommended to
+# install and use dot, since it yields more powerful graphs.
+
+CLASS_DIAGRAMS         = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see
+# http://www.mcternan.me.uk/mscgen/) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH            =
+
+# If set to YES, the inheritance and collaboration graphs will hide
+# inheritance and usage relations if the target is undocumented
+# or is not a class.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz, a graph visualization
+# toolkit from AT&T and Lucent Bell Labs. The other options in this section
+# have no effect if this option is set to NO (the default)
+
+HAVE_DOT               = NO
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is
+# allowed to run in parallel. When set to 0 (the default) doxygen will
+# base this on the number of processors available in the system. You can set it
+# explicitly to a value larger than 0 to get control over the balance
+# between CPU load and processing speed.
+
+DOT_NUM_THREADS        = 0
+
+# By default doxygen will write a font called Helvetica to the output
+# directory and reference it in all dot files that doxygen generates.
+# When you want a differently looking font you can specify the font name
+# using DOT_FONTNAME. You need to make sure dot is able to find the font,
+# which can be done by putting it in a standard location or by setting the
+# DOTFONTPATH environment variable or by setting DOT_FONTPATH to the directory
+# containing the font.
+
+DOT_FONTNAME           = Helvetica
+
+# The DOT_FONTSIZE tag can be used to set the size of the font of dot graphs.
+# The default size is 10pt.
+
+DOT_FONTSIZE           = 10
+
+# By default doxygen will tell dot to use the output directory to look for the
+# FreeSans.ttf font (which doxygen will put there itself). If you specify a
+# different font using DOT_FONTNAME you can set the path where dot
+# can find it using this tag.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen
+# will generate a graph for each documented class showing the direct and
+# indirect inheritance relations. Setting this tag to YES will force the
+# the CLASS_DIAGRAMS tag to NO.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen
+# will generate a graph for each documented class showing the direct and
+# indirect implementation dependencies (inheritance, containment, and
+# class references variables) of the class with other documented classes.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen
+# will generate a graph for groups, showing the direct groups dependencies
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+
+UML_LOOK               = NO
+
+# If set to YES, the inheritance and collaboration graphs will show the
+# relations between templates and their instances.
+
+TEMPLATE_RELATIONS     = NO
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT
+# tags are set to YES then doxygen will generate a graph for each documented
+# file showing the direct and indirect include dependencies of the file with
+# other documented files.
+
+INCLUDE_GRAPH          = YES
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and
+# HAVE_DOT tags are set to YES then doxygen will generate a graph for each
+# documented header file showing the documented files that directly or
+# indirectly include this file.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH and HAVE_DOT options are set to YES then
+# doxygen will generate a call dependency graph for every global function
+# or class method. Note that enabling this option will significantly increase
+# the time of a run. So in most cases it will be better to enable call graphs
+# for selected functions only using the \callgraph command.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH and HAVE_DOT tags are set to YES then
+# doxygen will generate a caller dependency graph for every global function
+# or class method. Note that enabling this option will significantly increase
+# the time of a run. So in most cases it will be better to enable caller
+# graphs for selected functions only using the \callergraph command.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen
+# will generate a graphical hierarchy of all classes instead of a textual one.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH, SHOW_DIRECTORIES and HAVE_DOT tags are set to YES
+# then doxygen will show the dependencies a directory has on other directories
+# in a graphical way. The dependency relations are determined by the #include
+# relations between the files in the directories.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot. Possible values are svg, png, jpg, or gif.
+# If left blank png will be used.
+
+DOT_IMAGE_FORMAT       = png
+
+# The tag DOT_PATH can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+
+DOT_PATH               = /usr/bin/dot
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the
+# \dotfile command).
+
+DOTFILE_DIRS           =
+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
+# contain msc files that are included in the documentation (see the
+# \mscfile command).
+
+MSCFILE_DIRS           =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of
+# nodes that will be shown in the graph. If the number of nodes in a graph
+# becomes larger than this value, doxygen will truncate the graph, which is
+# visualized by representing a node as a red box. Note that doxygen if the
+# number of direct children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note
+# that the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+
+DOT_GRAPH_MAX_NODES    = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the
+# graphs generated by dot. A depth value of 3 means that only nodes reachable
+# from the root by following a path via at most 3 edges will be shown. Nodes
+# that lay further from the root node will be omitted. Note that setting this
+# option to 1 or 2 may greatly reduce the computation time needed for large
+# code bases. Also note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+
+MAX_DOT_GRAPH_DEPTH    = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not
+# seem to support this out of the box. Warning: Depending on the platform used,
+# enabling this option may lead to badly anti-aliased labels on the edges of
+# a graph (i.e. they become hard to read).
+
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10)
+# support this, this feature is disabled by default.
+
+DOT_MULTI_TARGETS      = NO
+
+# If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will
+# generate a legend page explaining the meaning of the various boxes and
+# arrows in the dot generated graphs.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES (the default) Doxygen will
+# remove the intermediate dot files that are used to generate
+# the various graphs.
+
+DOT_CLEANUP            = YES
diff --git a/Makefile.am b/Makefile.am
index a78c523..9b1c0f1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -13,3 +13,28 @@
 	echo $(VERSION) > $@-t && mv $@-t $@
 dist-hook:
 	echo $(VERSION) > $(distdir)/.tarball-version
+
+
+if HAVE_DOXYGEN
+
+html_DATA = $(top_builddir)/doc/html.tar
+
+$(html_DATA): $(top_builddir)/doc/html/index.html
+	cd $(top_builddir)/doc && tar cf html.tar html
+
+$(top_builddir)/doc/html/index.html: $(SOURCES) Doxyfile
+	@rm -rf doc
+	mkdir -p doc
+	$(DOXYGEN) Doxyfile
+
+install-data-hook:
+	cd $(DESTDIR)$(htmldir) && tar xf html.tar && rm -f html.tar
+
+uninstall-hook:
+	rm -rf $(DESTDIR)$(htmldir)
+
+DX_CLEAN = doc/html/search/* doc/{html,latex}/* doc/html.tar doc/doxygen_sqlite3.db doc/*.tag
+
+endif
+
+MOSTLYCLEANFILES = $(DX_CLEAN)
diff --git a/configure.ac b/configure.ac
index 3994aff..8cd2238 100644
--- a/configure.ac
+++ b/configure.ac
@@ -63,6 +63,9 @@
 
 AC_CHECK_HEADERS(dahdi/user.h,,AC_MSG_WARN(DAHDI input driver will not be built))
 
+AC_PATH_PROG(DOXYGEN,doxygen,false)
+AM_CONDITIONAL(HAVE_DOXYGEN, test $DOXYGEN != false)
+
 AC_OUTPUT(
 	libosmo-netif.pc
 	include/Makefile
@@ -75,4 +78,5 @@
 	examples/Makefile
 	examples/channel/Makefile
 	tests/Makefile
+	Doxyfile
 	Makefile)
diff --git a/include/osmocom/netif/stream.h b/include/osmocom/netif/stream.h
index 819f1ce..254b4c5 100644
--- a/include/osmocom/netif/stream.h
+++ b/include/osmocom/netif/stream.h
@@ -1,9 +1,16 @@
 #ifndef _OSMO_STREAM_H_
 #define _OSMO_STREAM_H_
 
+/*! \addtogroup stream
+ *  @{
+ */
+
+/*! \brief Access the SCTP PPID from the msgb control buffer */
 #define msgb_sctp_ppid(msg)             (msg)->cb[3]
+/*! \brief Access the SCTP Stream ID from the msgb control buffer */
 #define msgb_sctp_stream(msg)           (msg)->cb[4]
 
+/*! \brief Osmocom Stream Server Link: A server socket listening/accepting */
 struct osmo_stream_srv_link;
 
 struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx);
@@ -20,6 +27,8 @@
 int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link);
 void osmo_stream_srv_link_close(struct osmo_stream_srv_link *link);
 
+/*! \brief Osmocom Stream Server: Single connection accept()ed via \ref
+ * osmo_stream_srv_link */
 struct osmo_stream_srv;
 
 struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link, int fd, int (*cb)(struct osmo_stream_srv *conn), int (*closed_cb)(struct osmo_stream_srv *conn), void *data);
@@ -33,6 +42,7 @@
 void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg);
 int osmo_stream_srv_recv(struct osmo_stream_srv *conn, struct msgb *msg);
 
+/*! \brief Osmocom Stream Client: Single client connection */
 struct osmo_stream_cli;
 
 void osmo_stream_cli_set_addr(struct osmo_stream_cli *cli, const char *addr);
@@ -56,4 +66,6 @@
 void osmo_stream_cli_send(struct osmo_stream_cli *cli, struct msgb *msg);
 int osmo_stream_cli_recv(struct osmo_stream_cli *conn, struct msgb *msg);
 
+/*! @} */
+
 #endif
diff --git a/src/datagram.c b/src/datagram.c
index c01ed9e..6316552 100644
--- a/src/datagram.c
+++ b/src/datagram.c
@@ -20,6 +20,15 @@
 
 #include <osmocom/netif/datagram.h>
 
+/*! \addtogroup datagram Osmocom Datagram Socket
+ *  @{
+ */
+
+/*! \file datagram.c
+ *  \brief Osmocom datagram socket helpers
+ */
+
+
 /*
  * Client side.
  */
@@ -36,6 +45,10 @@
 	unsigned int			flags;
 };
 
+/*! \brief Close an Osmocom Datagram Transmitter
+ *  \param[in] conn Osmocom Datagram Transmitter to be closed
+ *  We unregister the socket fd from the osmocom select() loop
+ *  abstraction and close the socket */
 void osmo_dgram_tx_close(struct osmo_dgram_tx *conn)
 {
 	osmo_fd_unregister(&conn->ofd);
@@ -78,6 +91,11 @@
         return 0;
 }
 
+/*! \brief Create an Osmocom datagram transmitter
+ *  \param[in] ctx talloc context from which to allocate memory
+ *  This function allocates a new \ref osmo_dgram_tx and initializes
+ *  it with default values
+ *  \returns Osmocom Datagram Transmitter; NULL on error */
 struct osmo_dgram_tx *osmo_dgram_tx_create(void *crx)
 {
 	struct osmo_dgram_tx *conn;
@@ -96,6 +114,10 @@
 	return conn;
 }
 
+
+/*! \brief Set the remote address to which we transmit
+ *  \param[in] conn Datagram Transmitter to modify
+ *  \param[in] addr Remote IP address */
 void
 osmo_dgram_tx_set_addr(struct osmo_dgram_tx *conn,
 				const char *addr)
@@ -107,6 +129,9 @@
 	conn->flags |= OSMO_DGRAM_CLI_F_RECONF;
 }
 
+/*! \brief Set the remote port to which we transmit
+ *  \param[in] conn Datagram Transmitter to modify
+ *  \param[in] port Remote Port Number */
 void
 osmo_dgram_tx_set_port(struct osmo_dgram_tx *conn,
 				uint16_t port)
@@ -115,17 +140,25 @@
 	conn->flags |= OSMO_DGRAM_CLI_F_RECONF;
 }
 
+/*! \brief Set application private data of the datagram transmitter
+ *  \param[in] conn Datagram Transmitter to modify
+ *  \param[in] data User-specific data (available in call-back functions) */
 void
 osmo_dgram_tx_set_data(struct osmo_dgram_tx *conn, void *data)
 {
 	conn->data = data;
 }
 
+/*! \brief Destroy a Osmocom datagram transmitter
+ *  \param[in] conn Datagram Transmitter to destroy */
 void osmo_dgram_tx_destroy(struct osmo_dgram_tx *conn)
 {
 	talloc_free(conn);
 }
 
+/*! \brief Open connection of an Osmocom datagram transmitter
+ *  \param[in] conn Stream Client to connect
+ *  \returns 0 on success; negative in case of error */
 int osmo_dgram_tx_open(struct osmo_dgram_tx *conn)
 {
 	int ret;
@@ -150,6 +183,9 @@
 	return 0;
 }
 
+/*! \brief Enqueue data to be sent via an Osmocom datagram transmitter
+ *  \param[in] conn Datagram Transmitter through which we want to send
+ *  \param[in] msg Message buffer to enqueue in transmit queue */
 void osmo_dgram_tx_send(struct osmo_dgram_tx *conn,
 				 struct msgb *msg)
 {
@@ -172,6 +208,10 @@
 	unsigned int			flags;
 };
 
+/*! \brief Receive data via Osmocom datagram receiver
+ *  \param[in] conn Datagram Receiver from which to receive
+ *  \param msg pre-allocate message buffer to which received data is appended
+ *  \returns number of bytes read, negative on error. */
 int osmo_dgram_rx_recv(struct osmo_dgram_rx *conn,
 				struct msgb *msg)
 {
@@ -206,6 +246,11 @@
 	return 0;
 }
 
+/*! \brief Create an Osmocom datagram receiver
+ *  \param[in] ctx talloc context from which to allocate memory
+ *  This function allocates a new \ref osmo_dgram_rx and initializes
+ *  it with default values
+ *  \returns Datagram Receiver; NULL on error */
 struct osmo_dgram_rx *osmo_dgram_rx_create(void *crx)
 {
 	struct osmo_dgram_rx *conn;
@@ -222,6 +267,9 @@
 	return conn;
 }
 
+/*! \brief Set the local address to which we bind
+ *  \param[in] conn Datagram Receiver to modify
+ *  \param[in] addr Local IP address */
 void osmo_dgram_rx_set_addr(struct osmo_dgram_rx *conn,
 				     const char *addr)
 {
@@ -232,6 +280,9 @@
 	conn->flags |= OSMO_DGRAM_RX_F_RECONF;
 }
 
+/*! \brief Set the local port to which we bind
+ *  \param[in] conn Datagram Receiver to modify
+ *  \param[in] port Local port number */
 void osmo_dgram_rx_set_port(struct osmo_dgram_rx *conn,
 				     uint16_t port)
 {
@@ -239,17 +290,26 @@
 	conn->flags |= OSMO_DGRAM_RX_F_RECONF;
 }
 
+/*! \brief Set the read() call-back of the datagram receiver
+ *  \param[in] conn Datagram Receiver to modify
+ *  \param[in] read_cb Call-back function executed after read() */
 void osmo_dgram_rx_set_read_cb(struct osmo_dgram_rx *conn,
 	int (*read_cb)(struct osmo_dgram_rx *conn))
 {
 	conn->cb = read_cb;
 }
 
+/*! \brief Destroy the datagram receiver. Releases Memory.
+ *  Caller must make sure to osmo_dgram_rx_close() before calling
+ *  \param[in] conn Datagram Receiver */
 void osmo_dgram_rx_destroy(struct osmo_dgram_rx *conn)
 {
 	talloc_free(conn);
 }
 
+/*! \brief Open the datagram receiver.  This actually initializes the
+ *  underlying socket and binds it to the configured ip/port
+ *  \param[in] conn Datagram Receiver to open */
 int osmo_dgram_rx_open(struct osmo_dgram_rx *conn)
 {
 	int ret;
@@ -273,6 +333,10 @@
 	return 0;
 }
 
+
+/*! \brief Close the datagram receiver and unregister from select loop
+ *  Does not destroy the datagram receiver, merely closes it!
+ *  \param[in] conn Stream Server Link to close */
 void osmo_dgram_rx_close(struct osmo_dgram_rx *conn)
 {
 	osmo_fd_unregister(&conn->ofd);
@@ -301,6 +365,13 @@
 	return 0;
 }
 
+
+/*! \brief Create an Osmocom datagram transceiver (bidirectional)
+ *  \param[in] ctx talloc context from which to allocate memory
+ *  This function allocates a new \ref osmo_dgram and initializes
+ *  it with default values.  Internally, the Transceiver is based on a
+ *  tuple of transmitter (\ref osmo_dgram_tx) and receiver (\ref osmo_dgram_rx)
+ *  \returns Osmocom Datagram Transceiver; NULL on error */
 struct osmo_dgram *osmo_dgram_create(void *crx)
 {
 	struct osmo_dgram *conn;
@@ -325,52 +396,78 @@
 	return conn;
 }
 
+/*! \brief Destroy a Osmocom datagram transceiver
+ *  \param[in] conn Datagram Transceiver to destroy */
 void osmo_dgram_destroy(struct osmo_dgram *conn)
 {
 	osmo_dgram_rx_destroy(conn->rx);
 	osmo_dgram_tx_destroy(conn->tx);
 }
 
+/*! \brief Set the local address to which we bind
+ *  \param[in] conn Datagram Transceiver to modify
+ *  \param[in] addr Local IP address */
 void
 osmo_dgram_set_local_addr(struct osmo_dgram *conn, const char *addr)
 {
 	osmo_dgram_rx_set_addr(conn->rx, addr);
 }
 
+/*! \brief Set the remote address to which we transmit/connect
+ *  \param[in] conn Datagram Transceiver to modify
+ *  \param[in] addr Remote IP address */
 void
 osmo_dgram_set_remote_addr(struct osmo_dgram *conn, const char *addr)
 {
 	osmo_dgram_tx_set_addr(conn->tx, addr);
 }
 
+/*! \brief Set the local port to which we bind
+ *  \param[in] conn Datagram Transceiver to modify
+ *  \param[in] port Local Port Number */
 void
 osmo_dgram_set_local_port(struct osmo_dgram *conn, uint16_t port)
 {
 	osmo_dgram_rx_set_port(conn->rx, port);
 }
 
+/*! \brief Set the remote port to which we transmit
+ *  \param[in] conn Datagram Transceiver to modify
+ *  \param[in] port Remote Port Number */
 void
 osmo_dgram_set_remote_port(struct osmo_dgram *conn, uint16_t port)
 {
 	osmo_dgram_tx_set_port(conn->tx, port);
 }
 
+/*! \brief Set the read() call-back of the datagram receiver
+ *  \param[in] conn Datagram Receiver to modify
+ *  \param[in] read_cb Call-back function executed after read() */
 void osmo_dgram_set_read_cb(struct osmo_dgram *conn,
 			    int (*read_cb)(struct osmo_dgram *conn))
 {
 	conn->read_cb = read_cb;
 }
 
+/*! \brief Set application private data of the datagram transmitter
+ *  \param[in] conn Datagram Transmitter to modify
+ *  \param[in] data User-specific data (available in call-back functions) */
 void osmo_dgram_set_data(struct osmo_dgram *conn, void *data)
 {
 	conn->data = data;
 }
 
+/*! \brief Get application private data of the datagram transceiver
+ *  \param[in] conn Datagram Transceiver
+ *  \returns Application private data, as set by \ref osmo_dgram_set_data() */
 void *osmo_dgram_get_data(struct osmo_dgram *conn)
 {
 	return conn->data;
 }
 
+/*! \brief Open the datagram transceiver.  This actually initializes the
+ * underlying sockets and binds/connects them to the configured ips/ports
+ *  \param[in] conn Datagram Transceiver to open */
 int osmo_dgram_open(struct osmo_dgram *conn)
 {
 	int ret;
@@ -387,18 +484,31 @@
 	return ret;
 }
 
+/*! \brief Close an Osmocom Datagram Transceiver
+ *  \param[in] conn Osmocom Datagram Transceiver to be closed
+ *  We unregister the socket fds from the osmocom select() loop
+ *  and close them. */
 void osmo_dgram_close(struct osmo_dgram *conn)
 {
 	osmo_dgram_rx_close(conn->rx);
 	osmo_dgram_tx_close(conn->tx);
 }
 
+/*! \brief Enqueue data to be sent via an Osmocom datagram transceiver
+ *  \param[in] conn Datagram Transceiver through which we want to send
+ *  \param[in] msg Message buffer to enqueue in transmit queue */
 void osmo_dgram_send(struct osmo_dgram *conn, struct msgb *msg)
 {
 	osmo_dgram_tx_send(conn->tx, msg);
 }
 
+/*! \brief Receive data via Osmocom datagram transceiver
+ *  \param[in] conn Datagram Transceiver from which to receive
+ *  \param msg pre-allocate message buffer to which received data is appended
+ *  \returns number of bytes read, negative on error. */
 int osmo_dgram_recv(struct osmo_dgram *conn, struct msgb *msg)
 {
 	return osmo_dgram_rx_recv(conn->rx, msg);
 }
+
+/*! @} */
diff --git a/src/stream.c b/src/stream.c
index 6b8bc95..e71e420 100644
--- a/src/stream.c
+++ b/src/stream.c
@@ -26,6 +26,14 @@
 #include <netinet/sctp.h>
 #endif
 
+/*! \addtogroup stream Osmocom Stream Socket
+ *  @{
+ */
+
+/*! \file stream.c
+ *  \brief Osmocom stream socket helpers
+ */
+
 /*
  * Platforms that don't have MSG_NOSIGNAL (which disables SIGPIPE)
  * usually have SO_NOSIGPIPE (set via setsockopt).
@@ -74,6 +82,7 @@
 	enum osmo_stream_cli_state	state;
 	const char			*addr;
 	uint16_t			port;
+	uint16_t			local_port;
 	uint16_t			proto;
 	int (*connect_cb)(struct osmo_stream_cli *srv);
 	int (*read_cb)(struct osmo_stream_cli *srv);
@@ -85,6 +94,9 @@
 
 void osmo_stream_cli_close(struct osmo_stream_cli *cli);
 
+/*! \brief Re-connect an Osmocom Stream Client
+ *  If re-connection is enabled for this client, we close any existing
+ *  connection (if any) and schedule a re-connect timer */
 void osmo_stream_cli_reconnect(struct osmo_stream_cli *cli)
 {
 	if (cli->reconnect_timeout < 0) {
@@ -99,6 +111,10 @@
 	cli->state = STREAM_CLI_STATE_CONNECTING;
 }
 
+/*! \brief Close an Osmocom Stream Client
+ *  \param[in] cli Osmocom Stream Client to be closed
+ *  We unregister the socket fd from the osmocom select() loop
+ *  abstraction and close the socket */
 void osmo_stream_cli_close(struct osmo_stream_cli *cli)
 {
 	if (cli->ofd.fd == -1)
@@ -212,6 +228,10 @@
 
 static void cli_timer_cb(void *data);
 
+/*! \brief Create an Osmocom stream client
+ *  \param[in] ctx talloc context from which to allocate memory
+ *  This function allocates a new \ref osmo_stream_cli and initializes
+ *  it with default values (5s reconnect timer, TCP protocol) */
 struct osmo_stream_cli *osmo_stream_cli_create(void *ctx)
 {
 	struct osmo_stream_cli *cli;
@@ -235,6 +255,10 @@
 	return cli;
 }
 
+/*! \brief Set the remote address to which we connect
+ *  \param[in] cli Stream Client to modify
+ *  \param[in] addr Remote IP address
+ */
 void
 osmo_stream_cli_set_addr(struct osmo_stream_cli *cli, const char *addr)
 {
@@ -242,6 +266,10 @@
 	cli->flags |= OSMO_STREAM_CLI_F_RECONF;
 }
 
+/*! \brief Set the remote port number to which we connect
+ *  \param[in] cli Stream Client to modify
+ *  \param[in] port Remote port number
+ */
 void
 osmo_stream_cli_set_port(struct osmo_stream_cli *cli, uint16_t port)
 {
@@ -249,6 +277,21 @@
 	cli->flags |= OSMO_STREAM_CLI_F_RECONF;
 }
 
+/*! \brief Set the local port number for the socket
+ *  \param[in] cli Stream Client to modify
+ *  \param[in] port Local port number
+ */
+void
+osmo_stream_cli_set_local_port(struct osmo_stream_cli *cli, uint16_t port)
+{
+	cli->local_port = port;
+	cli->flags |= OSMO_STREAM_CLI_F_RECONF;
+}
+
+/*! \brief Set the protocol for the stream client socket
+ *  \param[in] cli Stream Client to modify
+ *  \param[in] proto Protocol (like IPPROTO_TCP (default), IPPROTO_SCTP, ...)
+ */
 void
 osmo_stream_cli_set_proto(struct osmo_stream_cli *cli, uint16_t proto)
 {
@@ -256,29 +299,44 @@
 	cli->flags |= OSMO_STREAM_CLI_F_RECONF;
 }
 
+/*! \brief Set the reconnect time of the stream client socket
+ *  \param[in] cli Stream Client to modify
+ *  \param[in] timeout Re-connect timeout in seconds */
 void
 osmo_stream_cli_set_reconnect_timeout(struct osmo_stream_cli *cli, int timeout)
 {
 	cli->reconnect_timeout = timeout;
 }
 
+/*! \brief Set application private data of the stream client socket
+ *  \param[in] cli Stream Client to modify
+ *  \param[in] data User-specific data (available in call-back functions) */
 void
 osmo_stream_cli_set_data(struct osmo_stream_cli *cli, void *data)
 {
 	cli->data = data;
 }
 
+/*! \brief Get application private data of the stream client socket
+ *  \param[in] cli Stream Client to modif
+ *  \returns Application private data, as set by \ref osmo_stream_cli_set_data() */
 void *osmo_stream_cli_get_data(struct osmo_stream_cli *cli)
 {
 	return cli->data;
 }
 
+/*! \brief Get Osmocom File Descriptor of the stream client socket
+ *  \param[in] cli Stream Client to modif
+ *  \returns Pointer to \ref osmo_fd */
 struct osmo_fd *
 osmo_stream_cli_get_ofd(struct osmo_stream_cli *cli)
 {
 	return &cli->ofd;
 }
 
+/*! \brief Set the call-back function called on connect of the stream client socket
+ *  \param[in] cli Stream Client to modif
+ *  \param[in] connect_cb Call-back function to be called upon connect */
 void
 osmo_stream_cli_set_connect_cb(struct osmo_stream_cli *cli,
 	int (*connect_cb)(struct osmo_stream_cli *cli))
@@ -286,6 +344,9 @@
 	cli->connect_cb = connect_cb;
 }
 
+/*! \brief Set the call-back function called to read from the stream client socket
+ *  \param[in] cli Stream Client to modif
+ *  \param[in] read_cb Call-back function to be called when we want to read */
 void
 osmo_stream_cli_set_read_cb(struct osmo_stream_cli *cli,
 			    int (*read_cb)(struct osmo_stream_cli *cli))
@@ -293,12 +354,18 @@
 	cli->read_cb = read_cb;
 }
 
+/*! \brief Destroy a Osmocom stream client
+ *  \param[in] cli Stream Client to destroy */
 void osmo_stream_cli_destroy(struct osmo_stream_cli *cli)
 {
 	osmo_timer_del(&cli->timer);
 	talloc_free(cli);
 }
 
+/*! \brief Open connection of an Osmocom stream client
+ *  \param[in] cli Stream Client to connect
+ *  \param[in] reconect 1 if we should not automatically reconnect
+ */
 int osmo_stream_cli_open2(struct osmo_stream_cli *cli, int reconnect)
 {
 	int ret;
@@ -327,6 +394,8 @@
 }
 
 
+/*! \brief Open connection of an Osmocom stream client
+ *  \param[in] cli Stream Client to connect */
 int osmo_stream_cli_open(struct osmo_stream_cli *cli)
 {
 	return osmo_stream_cli_open2(cli, 0);
@@ -348,12 +417,19 @@
 	}
 }
 
+/*! \brief Enqueue data to be sent via an Osmocom stream client
+ *  \param[in] cli Stream Client through which we want to send
+ *  \param[in] msg Message buffer to enqueue in transmit queue */
 void osmo_stream_cli_send(struct osmo_stream_cli *cli, struct msgb *msg)
 {
 	msgb_enqueue(&cli->tx_queue, msg);
 	cli->ofd.when |= BSC_FD_WRITE;
 }
 
+/*! \brief Receive data via an Osmocom stream client
+ *  \param[in] cli Stream Client through which we want to send
+ *  \param msg pre-allocate message buffer to which received data is appended
+ *  \returns number of bytes read; <=0 in case of error */
 int osmo_stream_cli_recv(struct osmo_stream_cli *cli, struct msgb *msg)
 {
 	int ret;
@@ -417,6 +493,12 @@
 	return 0;
 }
 
+/*! \brief Create an Osmocom Stream Server Link
+ *  A Stream Server Link is the listen()+accept() "parent" to individual
+ *  Stream Servers
+ *  \param[in] ctx talloc allocation context
+ *  \returns Stream Server Link with default values (TCP)
+ */
 struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx)
 {
 	struct osmo_stream_srv_link *link;
@@ -434,6 +516,10 @@
 	return link;
 }
 
+/*! \brief Set the local address to which we bind
+ *  \param[in] link Stream Server Link to modify
+ *  \param[in] addr Local IP address
+ */
 void osmo_stream_srv_link_set_addr(struct osmo_stream_srv_link *link,
 				      const char *addr)
 {
@@ -441,6 +527,10 @@
 	link->flags |= OSMO_STREAM_SRV_F_RECONF;
 }
 
+/*! \brief Set the local port number to which we bind
+ *  \param[in] link Stream Server Link to modify
+ *  \param[in] port Local port number
+ */
 void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link,
 				      uint16_t port)
 {
@@ -448,6 +538,10 @@
 	link->flags |= OSMO_STREAM_SRV_F_RECONF;
 }
 
+/*! \brief Set the protocol for the stream server link
+ *  \param[in] link Stream Server Link to modify
+ *  \param[in] proto Protocol (like IPPROTO_TCP (default), IPPROTO_SCTP, ...)
+ */
 void
 osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link,
 			  uint16_t proto)
@@ -456,6 +550,9 @@
 	link->flags |= OSMO_STREAM_SRV_F_RECONF;
 }
 
+/*! \brief Set application private data of the stream server link
+ *  \param[in] link Stream Server Link to modify
+ *  \param[in] data User-specific data (available in call-back functions) */
 void
 osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link,
 				 void *data)
@@ -463,17 +560,26 @@
 	link->data = data;
 }
 
+/*! \brief Get application private data of the stream server link
+ *  \param[in] link Stream Server Link to modify
+ *  \returns Application private data, as set by \ref osmo_stream_cli_set_data() */
 void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link)
 {
 	return link->data;
 }
 
+/*! \brief Get Osmocom File Descriptor of the stream server link
+ *  \param[in] link Stream Server Link
+ *  \returns Pointer to \ref osmo_fd */
 struct osmo_fd *
 osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link)
 {
 	return &link->ofd;
 }
 
+/*! \brief Set the accept() call-back of the stream server link
+ *  \param[in] link Stream Server Link
+ *  \param[in] accept_cb Call-back function executed upon accept() */
 void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link,
 	int (*accept_cb)(struct osmo_stream_srv_link *link, int fd))
 
@@ -481,11 +587,17 @@
 	link->accept_cb = accept_cb;
 }
 
+/*! \brief Destroy the stream server link. Releases Memory.
+ *  Caller must make sure to osmo_stream_srv_link_close() before calling
+ *  \param[in] link Stream Server Link */
 void osmo_stream_srv_link_destroy(struct osmo_stream_srv_link *link)
 {
 	talloc_free(link);
 }
 
+/*! \brief Open the stream server link.  This actually initializes the
+ *  underlying socket and binds it to the configured ip/port
+ *  \param[in] link Stream Server Link to open */
 int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link)
 {
 	int ret;
@@ -509,6 +621,9 @@
 	return 0;
 }
 
+/*! \brief Close the stream server link and unregister from select loop
+ *  Does not destroy the server link, merely closes it!
+ *  \param[in] link Stream Server Link to close */
 void osmo_stream_srv_link_close(struct osmo_stream_srv_link *link)
 {
 	if (link->ofd.fd == -1)
@@ -590,6 +705,10 @@
 	return 0;
 }
 
+/*! \brief Create a Stream Server inside the specified link
+ *  \param[in] ctx talloc allocation context from which to allocate
+ *  \param[in] link Stream Server Link to which we belong
+ *  \returns Stream Server in case of success; NULL on error */
 struct osmo_stream_srv *
 osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
 	int fd,
@@ -622,6 +741,9 @@
 	return conn;
 }
 
+/*! \brief Set application private data of the stream server
+ *  \param[in] conn Stream Server to modify
+ *  \param[in] data User-specific data (available in call-back functions) */
 void
 osmo_stream_srv_set_data(struct osmo_stream_srv *conn,
 				 void *data)
@@ -629,22 +751,35 @@
 	conn->data = data;
 }
 
-void *osmo_stream_srv_get_data(struct osmo_stream_srv *link)
+/*! \brief Get application private data of the stream server
+ *  \param[in] conn Stream Server
+ *  \returns Application private data, as set by \ref osmo_stream_srv_set_data() */
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn)
 {
-	return link->data;
+	return conn->data;
 }
 
+/*! \brief Get Osmocom File Descriptor of the stream server
+ *  \param[in] conn Stream Server
+ *  \returns Pointer to \ref osmo_fd */
 struct osmo_fd *
-osmo_stream_srv_get_ofd(struct osmo_stream_srv *link)
+osmo_stream_srv_get_ofd(struct osmo_stream_srv *conn)
 {
-	return &link->ofd;
+	return &conn->ofd;
 }
 
+/*! \brief Get the master (Link) from a Stream Server
+ *  \param[in] conn Stream Server of which we want to know the Link
+ *  \returns Link through which the given Stream Server is established */
 struct osmo_stream_srv_link *osmo_stream_srv_get_master(struct osmo_stream_srv *conn)
 {
 	return conn->srv;
 }
 
+/*! \brief Destroy given Stream Server
+ *  This function closes the Stream Server socket, unregisters from
+ *  select loop and de-allocates associated memory.
+ *  \param[in] conn Stream Server to be destroyed */
 void osmo_stream_srv_destroy(struct osmo_stream_srv *conn)
 {
 	close(conn->ofd.fd);
@@ -654,12 +789,20 @@
 	talloc_free(conn);
 }
 
+/*! \brief Enqueue data to be sent via an Osmocom stream server
+ *  \param[in] conn Stream Server through which we want to send
+ *  \param[in] msg Message buffer to enqueue in transmit queue */
 void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg)
 {
 	msgb_enqueue(&conn->tx_queue, msg);
 	conn->ofd.when |= BSC_FD_WRITE;
 }
 
+/*! \brief Receive data via Osmocom stream server
+ *  \param[in] conn Stream Server from which to receive
+ *  \param msg pre-allocate message buffer to which received data is appended
+ *  \returns number of bytes read, negative on error.
+ */
 int osmo_stream_srv_recv(struct osmo_stream_srv *conn, struct msgb *msg)
 {
 #ifdef HAVE_LIBSCTP
@@ -735,3 +878,5 @@
 	LOGP(DLINP, LOGL_DEBUG, "received %d bytes from client\n", ret);
 	return ret;
 }
+
+/*! @} */

-- 
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Gerrit-MessageType: merged
Gerrit-Change-Id: I589a5e60d9df2b8a65fbaf68f80e3ae0039d8c2a
Gerrit-PatchSet: 1
Gerrit-Project: libosmo-netif
Gerrit-Branch: master
Gerrit-Owner: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Jenkins Builder



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