first commit

Makefile.am

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+# do not check for standard stuff, like AM_PROG_CC_C_O
+AUTOMAKE_OPTIONS = foreign
+
+bin_PROGRAMS = ofss
+
+ofss_SOURCES =                               \
+    src/config/conf.c                        \
+    src/config/conf_args.c                   \
+    src/control/ctrl.c                       \
+    src/control/ctrl_conn.c                  \
+    src/control/ctrl_conn_tcp.c              \
+    src/datapath/action.c                    \
+    src/datapath/action_list.c               \
+    src/datapath/action_set.c                \
+    src/datapath/dp.c                        \
+    src/datapath/dp_bufs.c                   \
+    src/datapath/dp_ctrl.c                   \
+    src/datapath/dp_mgr.c                    \
+    src/datapath/flow_entry.c                \
+    src/datapath/flow_table.c                \
+    src/datapath/group_entry.c               \
+    src/datapath/group_table.c               \
+    src/datapath/match_standard.c            \
+    src/datapath/pipeline.c                  \
+    src/datapath/pipeline_packet.c           \
+    src/datapath/protocol_stack.c            \
+    src/lib/info.c                           \
+    src/lib/message_box.c                    \
+    src/lib/pkt_buf.c                        \
+    src/lib/thread_id.c                      \
+    src/logger/logger_args.c                 \
+    src/logger/logger_mgr.c                  \
+    src/logger/logger.c                      \
+    src/oflib/ofl_actions_pack.c             \
+    src/oflib/ofl_actions_print.c            \
+    src/oflib/ofl_actions_unpack.c           \
+    src/oflib/ofl_actions.c                  \
+    src/oflib/ofl_messages_pack.c            \
+    src/oflib/ofl_messages_print.c           \
+    src/oflib/ofl_messages_unpack.c          \
+    src/oflib/ofl_messages.c                 \
+    src/oflib/ofl_print.c                    \
+    src/oflib/ofl_structs_pack.c             \
+    src/oflib/ofl_structs_print.c            \
+    src/oflib/ofl_structs_unpack.c           \
+    src/oflib/ofl_structs.c                  \
+    src/port/port_drv.c                      \
+    src/port/port_drv_mgr.c                  \
+    src/port/pcap/pcap_drv.c                 \
+    src/port/pcap/pcap_drv_linux.c           \
+    src/port/pcap/pcap_port.c                \
+    src/ofss.c
+
+#NOTE: autoconf adds "-g -O2" by default
+#O0: for debugging
+AM_CPPFLAGS = -I./src -I./vendor   \
+              $(PCAP_CFLAGS)       \
+              $(LIBEV_CFLAGS)      \
+              -Wall -W -O0
+
+AM_LDFLAGS = -pthread
+
+LDADD = $(PCAP_LIBS)   \
+        $(LIBEV_LIBS)
+
+# additional files to be deleted by "make maintainer-clean"
+MAINTAINERCLEANFILES =     \
+    Makefile.in            \
+    configure              \
+    aclocal.m4             \
+    build-aux/depcomp      \
+    build-aux/install-sh   \
+    build-aux/missing

README

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+An OpenFlow software switch implementation from TrafficLab, Ericsson Research, Hungary.
+
+Check doc/README for details.

configure.ac

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+# require autoconf version >= 2.68
+AC_PREREQ([2.68])
+# initialize project
+AC_INIT([OFSS], [0.1], [[email protected]],
+        [ofss], [https://github.com/TrafficLab/ofss/])
+
+# check for source dir
+AC_CONFIG_SRCDIR([src/ofss.c])
+
+
+# auxiliary build files go here
+AC_CONFIG_AUX_DIR([build-aux])
+
+#find and probe C compiler
+AC_PROG_CC
+
+# use the C compiler for the following checks
+AC_LANG([C])
+
+# Checks for header files.
+AC_CHECK_HEADERS([inttypes.h netdb.h netinet/in.h stddef.h stdint.h stdlib.h string.h sys/ioctl.h sys/socket.h unistd.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_HEADER_STDBOOL
+AC_C_INLINE
+AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+AC_TYPE_UINT16_T
+AC_TYPE_UINT32_T
+AC_TYPE_UINT64_T
+AC_TYPE_UINT8_T
+AC_CHECK_TYPES([ptrdiff_t])
+
+# Checks for library functions.
+AC_FUNC_ERROR_AT_LINE
+AC_FUNC_MALLOC
+AC_FUNC_REALLOC
+AC_FUNC_STRERROR_R
+AC_CHECK_FUNCS([localtime_r memmove memset socket strchr strdup strspn])
+
+#init automake
+#foreign: do not search/create NEWS, README, ChangeLog, ...
+#subdir-objects: put .o files to subdirs, not to project root
+AM_INIT_AUTOMAKE([1.11 foreign subdir-objects -Wall -Werror])
+AC_CONFIG_FILES([Makefile])
+
+# DEPENDENCIES
+
+# pcap dependency
+AC_ARG_WITH([pcap-include-path],
+  [AS_HELP_STRING([--with-pcap-include-path],
+    [location of the pcap headers, defaults to /usr/include])],
+  [PCAP_CFLAGS="-I$withval"],
+  [PCAP_CFLAGS='-I/usr/include'])
+AC_SUBST([PCAP_CFLAGS])
+
+AC_ARG_WITH([pcap-lib-path],
+  [AS_HELP_STRING([--with-pcap-lib-path],
+    [location of the pcap libraries])],
+  [PCAP_LIBS="-L$withval -lpcap"],
+  [PCAP_LIBS='-lpcap'])
+AC_SUBST([PCAP_LIBS])
+
+# libev dependency
+AC_ARG_WITH([libev-include-path],
+  [AS_HELP_STRING([--with-libev-include-path],
+    [location of the libev headers, defaults to /usr/include])],
+  [LIBEV_CFLAGS="-I$withval"],
+  [LIBEV_CFLAGS='-I/usr/include'])
+AC_SUBST([LIBEV_CFLAGS])
+
+AC_ARG_WITH([libev-lib-path],
+  [AS_HELP_STRING([--with-libev-lib-path],
+    [location of the libev libraries])],
+  [LIBEV_LIBS="-L$withval -lev"],
+  [LIBEV_LIBS='-lev'])
+AC_SUBST([LIBEV_LIBS])
+
+
+# finally generate Makefile, etc.
+AC_OUTPUT

doc/LICENSE

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+Copyright (c) 2011-2012, TrafficLab, Ericsson Research, Hungary
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met: 
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer. 
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution. 
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

doc/README

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+Dependencies
+=============
+libev (libev.schmorp.de/)
+------
+# apt-get install libev-dev libev4
+
+libpcap (http://www.tcpdump.org/)
+--------
+# apt-get install libpcap-dev
+
+autoconf
+---------
+# apt-get install autoconf
+
+
+
+Building
+=========
+> autoreconf -i
+> ./configure
+> make
+
+
+
+Running
+========
+To run ofss, it must be able to open raw sockets.
+Either run it as superuser:
+# ./ofss ...
+Or grant raw socket capabilities to it:
+# setcap cap_net_raw+ep ./ofss
+> ./ofss ...
+
+Use the following to check the command line arguments:
+> ./ofss --help
+
+The suggested command line for local oftest:
+> ./ofss -i -ddpid:00000000000000a1 -pveth0,vh2,veth4,veth6 -clocalhost -v

src/config/conf.c

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+/* Copyright (c) 2011-2012, TrafficLab, Ericsson Research, Hungary
+ * All rights reserved.
+ *
+ * The contents of this file are subject to the license defined in
+ * file 'doc/LICENSE', which is part of this source code package.
+ *
+ *
+ * Author: Zoltán Lajos Kis <[email protected]>
+ */
+
+/*
+ * Configuration handler.
+ * At the moment it only instantiates a single DP based on
+ * the command line arguments.
+ */
+
+#include <stdlib.h>
+#include <uthash/utlist.h>
+#include "datapath/dp_mgr.h"
+#include "logger/logger.h"
+#include "logger/logger_mgr.h"
+#include "conf.h"
+#include "conf_args.h"
+#include "conf_int.h"
+#include "lib/logger_names.h"
+#include "lib/util.h"
+
+
+static struct logger *logger;
+
+/* Static initializer for config manager. */
+void
+conf_init() {
+    logger = logger_mgr_get(LOGGER_NAME_CONFIG);
+}
+
+/* Processes command line arguments. */
+void
+conf_args(void *args_) {
+    assert(args_ != NULL);
+    struct conf_args *args = (struct conf_args *)args_;
+
+    // Create DP
+    ssize_t dp_uid = dp_mgr_create_dp(args->dp->dpid);
+    if (dp_uid == -1) {
+        logger_log(logger, LOG_ERR, "Could not create requested DP.");
+        conf_args_free(args);
+        return;
+	}
+
+	// Add ports
+    struct port_arg *port;
+    LL_FOREACH(args->ports, port) {
+        dp_mgr_dp_add_port(dp_uid, OF_NO_PORT, port->driver_name, port->port_name);
+    }
+
+    // Add controllers
+    struct ctrl_arg *ctrl;
+    LL_FOREACH(args->ctrls, ctrl) {
+        dp_mgr_dp_add_ctrl(dp_uid, ctrl->transport, ctrl->host, ctrl->port);
+    }
+
+    logger_log(logger, LOG_INFO, "Created new DP (%u) from args.", dp_uid);
+}

src/config/conf.h

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+/* Copyright (c) 2011-2012, TrafficLab, Ericsson Research, Hungary
+ * All rights reserved.
+ *
+ * The contents of this file are subject to the license defined in
+ * file 'doc/LICENSE', which is part of this source code package.
+ *
+ *
+ * Author: Zoltán Lajos Kis <[email protected]>
+ */
+
+#ifndef _CONF_H_
+#define _CONF_H_ 1
+
+void
+conf_init();
+
+void
+conf_args(void *args_);
+
+#endif /* _CONF_H_ */