sliver-openvswitch.git
15 years agostp: Increase hello time to 2 seconds.
Ben Pfaff [Tue, 23 Sep 2008 16:51:00 +0000 (09:51 -0700)]
stp: Increase hello time to 2 seconds.

An STP advertisement is sent after every expiry of the hello timer, so
this reduces STP advertisements to once every 2 seconds.

Once a second seemed like too often.

Suggested by Justin.

15 years agoMake sure to set 'port_no' in ofp_port_mod messages.
Justin Pettit [Tue, 23 Sep 2008 01:01:39 +0000 (18:01 -0700)]
Make sure to set 'port_no' in ofp_port_mod messages.

15 years agoFirst cut of pretty printer of ofp_port_mod messages.
Justin Pettit [Tue, 23 Sep 2008 00:59:50 +0000 (17:59 -0700)]
First cut of pretty printer of ofp_port_mod messages.

15 years agoFix some old references to OFPPFL_ in comments.
Justin Pettit [Tue, 23 Sep 2008 00:48:06 +0000 (17:48 -0700)]
Fix some old references to OFPPFL_ in comments.

15 years agoModify OpenFlow commands related to ports to be more expressive.
Justin Pettit [Mon, 22 Sep 2008 22:18:22 +0000 (15:18 -0700)]
Modify OpenFlow commands related to ports to be more expressive.

This new OpenFlow message format provides a cleaner interface and greater
detail and control over ports.  It is now possible to see what features
the switch's port is currently configured as having, what it's advertising,
and what it's capable of handling.  It is also possible to return the
features advertised by the port's peer.

15 years agoDrop port_watcher support for editing ports.
Ben Pfaff [Sat, 20 Sep 2008 00:03:24 +0000 (17:03 -0700)]
Drop port_watcher support for editing ports.

This was only needed for STP, which doesn't need it anymore.

15 years agoGet rid of per-port STP implemented bits, by reducing OFPP_MAX to 255.
Ben Pfaff [Sat, 20 Sep 2008 00:02:30 +0000 (17:02 -0700)]
Get rid of per-port STP implemented bits, by reducing OFPP_MAX to 255.

802.1D Spanning Tree Protocol supports a maximum of 255 ports per bridge,
but OpenFlow supported 256, so 1 port had to not implement STP.  This
gets rid of the problem by reducing the maximum number of ports to 255.

15 years agoUse device notifier in Linux kernel switch for detecting port status changes.
Justin Pettit [Fri, 19 Sep 2008 23:10:12 +0000 (16:10 -0700)]
Use device notifier in Linux kernel switch for detecting port status changes.

To report on link status and whether a port is administratively enabled or
disabled, the reference switches poll.  This change uses the Linux kernel's
device notification system, so that polling isn't necessary.

15 years agoAdd the ability to disable the STP implementation.
Ben Pfaff [Fri, 19 Sep 2008 22:37:53 +0000 (15:37 -0700)]
Add the ability to disable the STP implementation.

15 years agoFix boot.sh for the case where the extensions repository is not available.
Ben Pfaff [Fri, 19 Sep 2008 21:57:19 +0000 (14:57 -0700)]
Fix boot.sh for the case where the extensions repository is not available.

Reported by Justin.

15 years agovlogconf: Don't abort when given unknown option.
Ben Pfaff [Fri, 19 Sep 2008 20:19:21 +0000 (13:19 -0700)]
vlogconf: Don't abort when given unknown option.

15 years agoSlight improvement to printing of ofp_port_status messages.
Justin Pettit [Fri, 19 Sep 2008 09:00:06 +0000 (02:00 -0700)]
Slight improvement to printing of ofp_port_status messages.

15 years agoAdded lookup count to ofp_table_stats.
Justin Pettit [Fri, 19 Sep 2008 02:47:27 +0000 (19:47 -0700)]
Added lookup count to ofp_table_stats.

15 years agoUse "~" in designating beta versions to make version comparisons work. Also delete...
Justin Pettit [Thu, 18 Sep 2008 21:38:17 +0000 (14:38 -0700)]
Use "~" in designating beta versions to make version comparisons work.  Also delete "ext" submodule.

15 years agoUpdate pointer to "ext" to contain latest changes.
Justin Pettit [Thu, 18 Sep 2008 21:26:07 +0000 (14:26 -0700)]
Update pointer to "ext" to contain latest changes.

15 years agoFix failure to back off when vconn_open() fails immediately.
Ben Pfaff [Thu, 18 Sep 2008 16:47:18 +0000 (09:47 -0700)]
Fix failure to back off when vconn_open() fails immediately.

This typically would happen only with an entirely local vconn,
e.g. connecting to a Unix domain socket vconn.

15 years agoUpdate the ChangeLog with the changes since v0.8.1 and designate this v0.9.0-b1.
Justin Pettit [Thu, 18 Sep 2008 06:53:13 +0000 (23:53 -0700)]
Update the ChangeLog with the changes since v0.8.1 and designate this v0.9.0-b1.

15 years agoSuppress Automake warning about overriding distdir.
Ben Pfaff [Wed, 17 Sep 2008 20:29:00 +0000 (13:29 -0700)]
Suppress Automake warning about overriding distdir.

Reported by Martin.

15 years agoIgnore generated files in debian/.
Ben Pfaff [Wed, 17 Sep 2008 18:08:27 +0000 (11:08 -0700)]
Ignore generated files in debian/.

15 years agoPut "+ext" in the distribution filename if OpenFlow extensions are included.
Ben Pfaff [Wed, 17 Sep 2008 17:50:27 +0000 (10:50 -0700)]
Put "+ext" in the distribution filename if OpenFlow extensions are included.

15 years agoTest Debian packaging at "make distcheck" time.
Ben Pfaff [Wed, 17 Sep 2008 17:47:11 +0000 (10:47 -0700)]
Test Debian packaging at "make distcheck" time.

15 years agoAlso distribute Debian packaging.
Ben Pfaff [Wed, 17 Sep 2008 17:46:41 +0000 (10:46 -0700)]
Also distribute Debian packaging.

15 years agoMake "controller nl:0" work again, by fixing a layering violation.
Ben Pfaff [Tue, 16 Sep 2008 23:56:37 +0000 (16:56 -0700)]
Make "controller nl:0" work again, by fixing a layering violation.

The kernel datapath was claiming that it implements STP, which is untrue.
In fact, the secchan implements STP, so if the secchan was not running
the STP support did not work.  Thus, "controller nl:0" would do the
wrong thing.

This makes the secchan edit the responses from the datapath to claim
STP support.

15 years agoUpdate ext submodule to make it build with latest OpenFlow.
Ben Pfaff [Tue, 16 Sep 2008 23:21:23 +0000 (16:21 -0700)]
Update ext submodule to make it build with latest OpenFlow.

15 years agoAdded OFPFC_MODIFY_STRICT flow mod command.
Justin Pettit [Tue, 16 Sep 2008 23:07:25 +0000 (16:07 -0700)]
Added OFPFC_MODIFY_STRICT flow mod command.

This cleans up the handling of modifying existing flows.  There now exists
OFPFC_MODIFY and OFPFC_MODIFY_STRICT commands, which have the same matching
characteristics to their OFPFC_DELETE* counterparts.  When adding a flow that
already exists, the counters and timers are now reset (ie, its treated as a
new flow).  This commit also adds the "--strict" option to dpctl to allow
strict matching for "mod-flows" and "del-flows".

15 years agoUse RSA instead of DSA by default for the OpenFlow PKI.
Ben Pfaff [Tue, 16 Sep 2008 23:02:30 +0000 (16:02 -0700)]
Use RSA instead of DSA by default for the OpenFlow PKI.

15 years agoMake it easier to bootstrap the PKI for SSL connections in OpenFlow.
Ben Pfaff [Tue, 16 Sep 2008 23:05:38 +0000 (16:05 -0700)]
Make it easier to bootstrap the PKI for SSL connections in OpenFlow.

15 years agoofp-pki: Give controller and switch CA distinctive names.
Ben Pfaff [Tue, 16 Sep 2008 21:13:22 +0000 (14:13 -0700)]
ofp-pki: Give controller and switch CA distinctive names.

This makes it possible to tell them apart by looking at the certificates,
instead of having to just know which is which.

15 years agoChange STP parameters to the minimum values allowed by 802.1D.
Ben Pfaff [Tue, 16 Sep 2008 23:06:43 +0000 (16:06 -0700)]
Change STP parameters to the minimum values allowed by 802.1D.

This makes the secchan start up much faster.

15 years agoAdd -Wdeclaration-after-statement to CFLAGS.
Ben Pfaff [Mon, 15 Sep 2008 23:43:40 +0000 (16:43 -0700)]
Add -Wdeclaration-after-statement to CFLAGS.

This should help us avoid writing non-portable code.

15 years agoFix "make distcheck".
Ben Pfaff [Mon, 15 Sep 2008 23:31:37 +0000 (16:31 -0700)]
Fix "make distcheck".

15 years agoIgnore some more generated files.
Ben Pfaff [Mon, 15 Sep 2008 23:32:02 +0000 (16:32 -0700)]
Ignore some more generated files.

15 years agoFix OpenFlow extensions submodule to build again.
Ben Pfaff [Mon, 15 Sep 2008 23:04:55 +0000 (16:04 -0700)]
Fix OpenFlow extensions submodule to build again.

15 years agoMerge commit 'origin/master'
Ben Pfaff [Mon, 15 Sep 2008 22:43:44 +0000 (15:43 -0700)]
Merge commit 'origin/master'

Conflicts:

switch/datapath.c
utilities/dpctl.c

15 years agoMerge branch "partner", to simplify partner integration.
Ben Pfaff [Mon, 15 Sep 2008 22:31:36 +0000 (15:31 -0700)]
Merge branch "partner", to simplify partner integration.

15 years agoAdd support for OFPFC_MODIFY Flow Mod command.
Justin Pettit [Mon, 15 Sep 2008 22:27:04 +0000 (15:27 -0700)]
Add support for OFPFC_MODIFY Flow Mod command.

The OFPFC_MODIFY command allows the controller to modify the actions of
existing flows.  When it does this, it does not reset counters or timers.

15 years agoIgnore hwtable_dummy.c symlink in kernel build directories.
Justin Pettit [Wed, 10 Sep 2008 22:12:14 +0000 (15:12 -0700)]
Ignore hwtable_dummy.c symlink in kernel build directories.

15 years agoImplement OFPT_HELLO simple version negotiation.
Ben Pfaff [Mon, 15 Sep 2008 18:19:23 +0000 (11:19 -0700)]
Implement OFPT_HELLO simple version negotiation.

15 years agoBreak passive vconns out into separate pvconn routines and data structures.
Ben Pfaff [Thu, 11 Sep 2008 22:12:46 +0000 (15:12 -0700)]
Break passive vconns out into separate pvconn routines and data structures.

There really was nothing in common between the active and passive vconns.
This arrangement makes more sense.

15 years agoMake "struct vconn" opaque.
Ben Pfaff [Thu, 11 Sep 2008 18:46:57 +0000 (11:46 -0700)]
Make "struct vconn" opaque.

15 years agoFix handling of port flags.
Ben Pfaff [Mon, 15 Sep 2008 21:24:57 +0000 (14:24 -0700)]
Fix handling of port flags.

The "port watcher" in secchan was not keeping track of updates to port
flags by the controller, which caused some combinations of secchan
and controller to not turn on ports when the STP state otherwise should
have done so.

Thanks to Justin for reporting the problem.

15 years agoFix broken stat requests over netlink.
Justin Pettit [Mon, 15 Sep 2008 06:05:37 +0000 (23:05 -0700)]
Fix broken stat requests over netlink.

A recent change (696db2) modified the way stats were being sent over the
netlink socket.  Unfortunately, the responder set the transaction id to the
type, which caused the requestor to ignore the repsone.

15 years agoKeep old stats when a Flow Add replaces an existing entry.
Justin Pettit [Sat, 13 Sep 2008 01:57:21 +0000 (18:57 -0700)]
Keep old stats when a Flow Add replaces an existing entry.

15 years agoClean up the code in the sample hardware table code.
Justin Pettit [Sat, 13 Sep 2008 01:50:37 +0000 (18:50 -0700)]
Clean up the code in the sample hardware table code.

15 years agoFix crash when no actions are specified.
Justin Pettit [Sat, 13 Sep 2008 01:47:29 +0000 (18:47 -0700)]
Fix crash when no actions are specified.

Actions are allocated as a pointer to an array of actions in flows.  When
flows are freed, the code was always freeing the action pointer.
Under some circumstances the pointer may not be set.

15 years agoUse vconn_init() instead of explicit initialization in one last place.
Ben Pfaff [Thu, 11 Sep 2008 18:37:13 +0000 (11:37 -0700)]
Use vconn_init() instead of explicit initialization in one last place.

Commit b5e16b0723, "Respin "Make vconns keep track of their names and
include them in log messages,"" was supposed to do this everywhere, but
this instance was evidently missed.

15 years agoGet rid of OFP_MAXLEN.
Ben Pfaff [Thu, 11 Sep 2008 02:59:26 +0000 (19:59 -0700)]
Get rid of OFP_MAXLEN.

Statistics or vendor extensions can fill up the whole 64 kB.

15 years agoDelete OFPST_SWITCH and make it available as a Nicira vendor extension.
Ben Pfaff [Wed, 10 Sep 2008 22:00:47 +0000 (15:00 -0700)]
Delete OFPST_SWITCH and make it available as a Nicira vendor extension.

15 years agoMake switches send error messages when they receive a bad request.
Ben Pfaff [Wed, 10 Sep 2008 20:22:25 +0000 (13:22 -0700)]
Make switches send error messages when they receive a bad request.

15 years agoAdd vendor-specific messages and statistics to OpenFlow protocol.
Ben Pfaff [Wed, 10 Sep 2008 20:20:36 +0000 (13:20 -0700)]
Add vendor-specific messages and statistics to OpenFlow protocol.

15 years agoFix uninitialized data read in secchan.
Ben Pfaff [Wed, 10 Sep 2008 19:51:56 +0000 (12:51 -0700)]
Fix uninitialized data read in secchan.

Found by valgrind.

15 years agoUse new method to describe table entries in OpenFlow wire protocol.
Justin Pettit [Wed, 10 Sep 2008 20:03:05 +0000 (13:03 -0700)]
Use new method to describe table entries in OpenFlow wire protocol.

Older versions of OpenFlow pre-defined a few different types of tables and the
Features Reply message would indicate how many of those entries existed.  This
was very inflexible, so now the Features Reply just indicates how many tables
there are.  The controller now sends a Table Stats request to find out how
many entries are supported and the fields that can be wildcarded.

This change also removes the "buffer_mb" field from the Features Reply, since
it was not being used and seemed to be of limited value.

15 years agoImplement 802.1D Spanning Tree Protocol.
Ben Pfaff [Tue, 9 Sep 2008 21:15:57 +0000 (14:15 -0700)]
Implement 802.1D Spanning Tree Protocol.

15 years agoZero out otherwise uninitialized padding in make_unbuffered_packet_out().
Ben Pfaff [Tue, 9 Sep 2008 20:10:09 +0000 (13:10 -0700)]
Zero out otherwise uninitialized padding in make_unbuffered_packet_out().

Found with valgrind.

15 years agoFix instructions for running ofp-pki: "new-pki" is now "init".
Ben Pfaff [Tue, 9 Sep 2008 20:09:33 +0000 (13:09 -0700)]
Fix instructions for running ofp-pki: "new-pki" is now "init".

Thanks to Dan for pointing out the problem.

15 years agoSend of0 packets from workqueue, to avoid recursive locking of ofN device.
Ben Pfaff [Tue, 9 Sep 2008 19:53:47 +0000 (12:53 -0700)]
Send of0 packets from workqueue, to avoid recursive locking of ofN device.

lockdep reported the following warning, showing that dev_queue_xmit()
for of0 and for another ethernet device (eth0?) were taking locks of
the same class.  It was not a problem in this particular case, because
of0 != eth0, but if a flow were to send a packet back to of0 then we
would have a deadlock.

Solution: use a workqueue to send packets to avoid recursive locking.
We will still waste a lot of CPU time if we get a packet that loops back
to of0.  Solution for that still needed.

=============================================
[ INFO: possible recursive locking detected ]
2.6.26.5 #1
---------------------------------------------
memcheck/1258 is trying to acquire lock:
 (_xmit_ETHER){-+..}, at: [<c025b126>] __qdisc_run+0xa0/0x18a

but task is already holding lock:
 (_xmit_ETHER){-+..}, at: [<c024f3cd>] dev_queue_xmit+0x23c/0x334

other info that might help us debug this:
9 locks held by memcheck/1258:
 #0:  (genl_mutex){--..}, at: [<c0262037>] genl_rcv+0x12/0x2b
 #1:  (dp_mutex){--..}, at: [<c88e9a13>] dp_genl_openflow+0x58/0x91 [openflow_mo
d]
 #2:  (rcu_read_lock){..--}, at: [<c024e749>] netif_receive_skb+0x9e/0x328
 #3:  (rcu_read_lock){..--}, at: [<c0267f77>] ip_local_deliver_finish+0x2a/0x1d7
 #4:  (slock-AF_INET/1){-+..}, at: [<c027f1b8>] tcp_v4_rcv+0x29f/0x5ef
 #5:  (rcu_read_lock){..--}, at: [<c024f308>] dev_queue_xmit+0x177/0x334
 #6:  (_xmit_ETHER){-+..}, at: [<c024f3cd>] dev_queue_xmit+0x23c/0x334
 #7:  (rcu_read_lock){..--}, at: [<c88ea214>] dp_dev_xmit+0x0/0x6c [openflow_mod
]
 #8:  (rcu_read_lock){..--}, at: [<c024f308>] dev_queue_xmit+0x177/0x334

stack backtrace:
Pid: 1258, comm: memcheck Not tainted 2.6.26.5 #1
 [<c02c11cc>] ? printk+0xf/0x13
 [<c01368c5>] __lock_acquire+0x8c2/0xbe4
 [<c0134d35>] ? add_lock_to_list+0x64/0x8a
 [<c0107a78>] ? native_sched_clock+0x82/0x94
 [<c0136c3e>] lock_acquire+0x57/0x73
 [<c025b126>] ? __qdisc_run+0xa0/0x18a
 [<c02c3919>] _spin_lock+0x1c/0x49
 [<c025b126>] ? __qdisc_run+0xa0/0x18a
 [<c025b126>] __qdisc_run+0xa0/0x18a
 [<c024f382>] dev_queue_xmit+0x1f1/0x334
 [<c88e9cde>] xmit_skb+0x5b/0x65 [openflow_mod]
 [<c88e9e60>] dp_output_port+0x178/0x1ae [openflow_mod]
 [<c88eaf91>] do_output+0x2a/0x4c [openflow_mod]
 [<c88eb11f>] execute_actions+0x16c/0x198 [openflow_mod]
 [<c88eb622>] run_flow_through_tables+0xe9/0xf6 [openflow_mod]
 [<c88eb63e>] fwd_port_input+0xf/0x3d [openflow_mod]
 [<c88ea260>] dp_dev_xmit+0x4c/0x6c [openflow_mod]
 [<c88ea214>] ? dp_dev_xmit+0x0/0x6c [openflow_mod]
 [<c024f042>] dev_hard_start_xmit+0x20f/0x276
 [<c024f3e2>] dev_queue_xmit+0x251/0x334
 [<c026bfcb>] ip_finish_output+0x1ea/0x222
 [<c026c081>] ip_output+0x7e/0x83
 [<c026b37a>] ip_local_out+0x18/0x1b
 [<c026baa2>] ip_queue_xmit+0x288/0x2c9
 [<c0136a0c>] ? __lock_acquire+0xa09/0xbe4
 [<c0111264>] ? kernel_map_pages+0xfc/0x113
 [<c027ddad>] ? tcp_v4_send_check+0x80/0xba
 [<c027a281>] tcp_transmit_skb+0x695/0x6cd
 [<c016060a>] ? __kmalloc_track_caller+0xee/0x12a
 [<c024aacc>] ? __alloc_skb+0x51/0xff
 [<c027a43c>] tcp_send_ack+0xdf/0xe7
 [<c02781e4>] tcp_rcv_state_process+0x389/0xc33
 [<c027eebd>] tcp_v4_do_rcv+0x3bd/0x419
 [<c027f2c7>] tcp_v4_rcv+0x3ae/0x5ef
 [<c026805f>] ip_local_deliver_finish+0x112/0x1d7
 [<c0268185>] ip_local_deliver+0x61/0x6a
 [<c0267d14>] ip_rcv_finish+0x2a4/0x2c3
 [<c0267f23>] ip_rcv+0x1f0/0x21a
 [<c024e990>] netif_receive_skb+0x2e5/0x328
 [<c024ea52>] process_backlog+0x7f/0xca
 [<c024d867>] net_rx_action+0x72/0x127
 [<c0120ea1>] __do_softirq+0x7b/0xf2
 [<c0105a5d>] do_softirq+0x66/0xb3
 [<c024ec69>] netif_rx_ni+0x29/0x2e
 [<c88ea2cd>] dp_dev_recv+0x4d/0x6c [openflow_mod]
 [<c88e9e06>] dp_output_port+0x11e/0x1ae [openflow_mod]
 [<c88eaf91>] do_output+0x2a/0x4c [openflow_mod]
 [<c88eb11f>] execute_actions+0x16c/0x198 [openflow_mod]
 [<c88eb312>] recv_flow+0x1c7/0x2a5 [openflow_mod]
 [<c88eb14b>] ? recv_flow+0x0/0x2a5 [openflow_mod]
 [<c88eab37>] fwd_control_input+0x53/0x60 [openflow_mod]
 [<c88e9a27>] dp_genl_openflow+0x6c/0x91 [openflow_mod]
 [<c02621ce>] genl_rcv_msg+0x17e/0x198
 [<c0262050>] ? genl_rcv_msg+0x0/0x198
 [<c02614c6>] netlink_rcv_skb+0x30/0x76
 [<c0262043>] genl_rcv+0x1e/0x2b
 [<c0261053>] netlink_unicast+0x1a9/0x20f
 [<c02612dc>] netlink_sendmsg+0x223/0x230
 [<c0245384>] sock_sendmsg+0xca/0xe1
 [<c012c501>] ? autoremove_wake_function+0x0/0x33
 [<c015f6ce>] ? cache_free_debugcheck+0x2a3/0x2be
 [<c0107a78>] ? native_sched_clock+0x82/0x94
 [<c0134382>] ? lock_release_holdtime+0x1a/0x115
 [<c01f52b7>] ? copy_from_user+0x34/0x11b
 [<c024b6a5>] ? verify_iovec+0x40/0x6f
 [<c02454da>] sys_sendmsg+0x13f/0x192
 [<c0168d51>] ? pipe_write+0x434/0x43f
 [<c0107a78>] ? native_sched_clock+0x82/0x94
 [<c0107a78>] ? native_sched_clock+0x82/0x94
 [<c0134382>] ? lock_release_holdtime+0x1a/0x115
 [<c0107a78>] ? native_sched_clock+0x82/0x94
 [<c0134382>] ? lock_release_holdtime+0x1a/0x115
 [<c0246189>] sys_socketcall+0x14e/0x169
 [<c0102d43>] ? restore_nocheck+0x12/0x15
 [<c0102ce2>] syscall_call+0x7/0xb
 =======================

15 years agoAdd ability to monitor both ends of secchan connections from dpctl.
Ben Pfaff [Mon, 8 Sep 2008 17:05:12 +0000 (10:05 -0700)]
Add ability to monitor both ends of secchan connections from dpctl.

15 years agovconn: New function vconn_get_name().
Ben Pfaff [Fri, 5 Sep 2008 21:33:08 +0000 (14:33 -0700)]
vconn: New function vconn_get_name().

15 years agoRe-add extensions submodule that was accidentally dropped.
Ben Pfaff [Mon, 8 Sep 2008 16:25:25 +0000 (09:25 -0700)]
Re-add extensions submodule that was accidentally dropped.

15 years agoCompatibility fixes for 2.6.18 kernel
Ben Pfaff [Sat, 6 Sep 2008 04:23:34 +0000 (21:23 -0700)]
Compatibility fixes for 2.6.18 kernel

Functions added in the 2.6.22 kernel in tcp.h and skbuff.h
have been added to the compatibility headers. Additionally
the data argument was dropped in 2.6.22 for the work queue
macros, requiring them to be redfined for previous kernels.

Based on changes from David Erickson.

15 years agoDo not send in-band control traffic to the controller.
Ben Pfaff [Sat, 6 Sep 2008 00:09:53 +0000 (17:09 -0700)]
Do not send in-band control traffic to the controller.

This commit prevents the secure channel from sending any traffic to
or from the controller up to the controller over its OpenFlow connection.
Instead, such traffic is always handled completely locally.  This is
what the changes to in-band control up until now have been converging on:
each time, we have reduced the category of traffic that can be sent up
to the controller because we have found that doing so can cause a control
loop.  This change goes all the way.

15 years agoUse make_openflow() function to simplify send_features_request().
Ben Pfaff [Mon, 18 Aug 2008 20:57:14 +0000 (13:57 -0700)]
Use make_openflow() function to simplify send_features_request().

15 years agoFix typo in comment.
Ben Pfaff [Thu, 14 Aug 2008 18:43:05 +0000 (11:43 -0700)]
Fix typo in comment.

15 years agoIn userspace switch, don't truncate packets to 0 bytes with max_len of 0.
Ben Pfaff [Thu, 4 Sep 2008 20:44:29 +0000 (13:44 -0700)]
In userspace switch, don't truncate packets to 0 bytes with max_len of 0.

From partner.

15 years agoDrop unneeded inclusions of ofp-print.h.
Ben Pfaff [Thu, 4 Sep 2008 20:33:15 +0000 (13:33 -0700)]
Drop unneeded inclusions of ofp-print.h.

15 years agoDon't use designated struct member initializers in code compiled outside of Linux.
Ben Pfaff [Thu, 4 Sep 2008 20:28:28 +0000 (13:28 -0700)]
Don't use designated struct member initializers in code compiled outside of Linux.

Needed for partner builds.

15 years agoDon't use designated array initializers in code compiled outside of Linux.
Ben Pfaff [Thu, 4 Sep 2008 20:18:28 +0000 (13:18 -0700)]
Don't use designated array initializers in code compiled outside of Linux.

Needed for partner builds.

15 years agoRename utility functions to avoid partner namespace conflicts.
Ben Pfaff [Thu, 4 Sep 2008 18:22:02 +0000 (11:22 -0700)]
Rename utility functions to avoid partner namespace conflicts.

15 years agoRevert "Do not send in-band control traffic to the controller."
Ben Pfaff [Thu, 4 Sep 2008 20:51:54 +0000 (13:51 -0700)]
Revert "Do not send in-band control traffic to the controller."

This reverts commit 123301f8b57df7e539478c607d52d21b55e023c0,
because it broke second-hop OpenFlow switches' attempts to connect
to the controller.

Probably re-spin it later, with more testing this time.

15 years agoTolerate existing definitions of MIN, MAX macros.
Ben Pfaff [Thu, 4 Sep 2008 18:13:11 +0000 (11:13 -0700)]
Tolerate existing definitions of MIN, MAX macros.

Enables partner builds.

15 years agoFix included headers.
Ben Pfaff [Thu, 4 Sep 2008 18:12:01 +0000 (11:12 -0700)]
Fix included headers.

Enables partner builds.

15 years agoRename struct queue to struct ofp_queue.
Ben Pfaff [Thu, 4 Sep 2008 18:10:46 +0000 (11:10 -0700)]
Rename struct queue to struct ofp_queue.

Fixes namespace conflict for partner development.

15 years agoAvoid pointer arithmetic on void*.
Ben Pfaff [Thu, 4 Sep 2008 17:46:38 +0000 (10:46 -0700)]
Avoid pointer arithmetic on void*.

This is a GCC extension not supported by other compilers.

15 years agoAdd -Wpointer-arith to compiler flags.
Ben Pfaff [Thu, 4 Sep 2008 17:42:04 +0000 (10:42 -0700)]
Add -Wpointer-arith to compiler flags.

This should help us to avoid doing pointer arithmetic on void * pointers,
which is a GCC extension that other compilers do not support.

15 years agoRename struct buffer to struct ofpbuf.
Ben Pfaff [Thu, 4 Sep 2008 17:35:50 +0000 (10:35 -0700)]
Rename struct buffer to struct ofpbuf.

Fixes namespace conflict for partner development.

15 years agoSimplify code by using rconn_send_with_limit() helper function.
Ben Pfaff [Thu, 4 Sep 2008 16:48:27 +0000 (09:48 -0700)]
Simplify code by using rconn_send_with_limit() helper function.

15 years agoInitialize otherwise uninitialized variable.
Ben Pfaff [Thu, 4 Sep 2008 16:47:33 +0000 (09:47 -0700)]
Initialize otherwise uninitialized variable.

Found by valgrind.

15 years agoRespin "Make vconns keep track of their names and include them in log messages."
Ben Pfaff [Thu, 4 Sep 2008 16:47:05 +0000 (09:47 -0700)]
Respin "Make vconns keep track of their names and include them in log messages."

This time, leave out the segfaults.

15 years agoAdd serial number to description status message.
Justin Pettit [Thu, 4 Sep 2008 00:51:42 +0000 (17:51 -0700)]
Add serial number to description status message.

15 years agoRevert "Make vconns keep track of their names and include them in log messages."
Justin Pettit [Thu, 4 Sep 2008 00:43:30 +0000 (17:43 -0700)]
Revert "Make vconns keep track of their names and include them in log messages."

This reverts commit a39a2431c12d25aab4d6ed560da3607611a74937.

15 years agoAlso disable atexit hooks in fatal_signal_fork().
Ben Pfaff [Wed, 3 Sep 2008 17:10:39 +0000 (10:10 -0700)]
Also disable atexit hooks in fatal_signal_fork().

This fixes a problem in ofp-discover, where it would daemonize itself
after setting an IP address on one of its interfaces.  The daemonize
function would call fatal_signal_fork() then exit(0), which would in turn
cause the netdev code to disable the interface and thereby remove the IP
address.

The bug that this fixes was introduced in commit 3cc1ae6a3, "Add ability
to run fatal signal hooks upon normal termination too."

15 years agoDo not send in-band control traffic to the controller.
Ben Pfaff [Tue, 2 Sep 2008 22:44:58 +0000 (15:44 -0700)]
Do not send in-band control traffic to the controller.

This commit prevents the secure channel from sending any traffic to
or from the controller up to the controller over its OpenFlow connection.
Instead, such traffic is always handled completely locally.  This is
what the changes to in-band control up until now have been converging on:
each time, we have reduced the category of traffic that can be sent up
to the controller because we have found that doing so can cause a control
loop.  This change goes all the way.

15 years agoMinimal fix for in-band control loop with hub.
Ben Pfaff [Tue, 2 Sep 2008 22:42:34 +0000 (15:42 -0700)]
Minimal fix for in-band control loop with hub.

When a hub has two switches and the controller on three of its ports,
control traffic from the controller to switch 1 is seen by switch 2 as
data traffic, and switch 2 sends it up over its OpenFlow connection.  That
control traffic is in turn seen by the switch 1 as data traffic, and so
switch 1 sends it up over its OpenFlow connection.  And so on: this is a
loop.

This commit fixes the situation by not sending up over the OpenFlow
connection traffic to the controller that arrived on the controller's
port, as well as traffic from the controller.

15 years agoMake vconns keep track of their names and include them in log messages.
Ben Pfaff [Tue, 2 Sep 2008 21:28:22 +0000 (14:28 -0700)]
Make vconns keep track of their names and include them in log messages.

15 years agoUpdate ext.
Ben Pfaff [Tue, 2 Sep 2008 20:44:49 +0000 (13:44 -0700)]
Update ext.

15 years agoMake "make dist", "make clean" work without extensions submodule present.
Ben Pfaff [Fri, 29 Aug 2008 17:05:14 +0000 (10:05 -0700)]
Make "make dist", "make clean" work without extensions submodule present.

15 years agoFix detection of OpenFlow extensions submodule.
Ben Pfaff [Fri, 29 Aug 2008 16:55:34 +0000 (09:55 -0700)]
Fix detection of OpenFlow extensions submodule.

15 years agoFix "make distcheck" error due to failure to clean files added by Automake.
Ben Pfaff [Fri, 29 Aug 2008 00:47:01 +0000 (17:47 -0700)]
Fix "make distcheck" error due to failure to clean files added by Automake.

15 years agoAdd support for extensions submodule.
Ben Pfaff [Fri, 29 Aug 2008 00:36:33 +0000 (17:36 -0700)]
Add support for extensions submodule.

15 years agoRemove duplicate prefixes on switch-status items.
Ben Pfaff [Wed, 27 Aug 2008 18:29:57 +0000 (11:29 -0700)]
Remove duplicate prefixes on switch-status items.

15 years agoMake the secchan report a few more switch-status items.
Ben Pfaff [Wed, 27 Aug 2008 18:29:53 +0000 (11:29 -0700)]
Make the secchan report a few more switch-status items.

15 years agoAdd ability to run fatal signal hooks upon normal termination too.
Ben Pfaff [Wed, 27 Aug 2008 18:29:45 +0000 (11:29 -0700)]
Add ability to run fatal signal hooks upon normal termination too.

This is convenient since in many cases we want these hooks to run in
both cases.

15 years agoAdd license notice to acinclude.m4, configure.ac.
Ben Pfaff [Wed, 27 Aug 2008 18:28:53 +0000 (11:28 -0700)]
Add license notice to acinclude.m4, configure.ac.

15 years agoMake -P or --pidfile keep programs from running if already running.
Ben Pfaff [Thu, 28 Aug 2008 20:17:16 +0000 (13:17 -0700)]
Make -P or --pidfile keep programs from running if already running.

15 years agoFix test for fcntl return value.
Ben Pfaff [Thu, 28 Aug 2008 20:15:32 +0000 (13:15 -0700)]
Fix test for fcntl return value.

POSIX only says that -1 is an error; other return values have unspecified
meanings.

15 years agoMake OpenFlow kernel module print protocol version.
Ben Pfaff [Thu, 24 Jul 2008 00:38:42 +0000 (17:38 -0700)]
Make OpenFlow kernel module print protocol version.

15 years agoAllow multiple -l or --listen options on secchan command line.
Ben Pfaff [Wed, 27 Aug 2008 18:50:11 +0000 (11:50 -0700)]
Allow multiple -l or --listen options on secchan command line.

Bug #149.

15 years agovlog: Apply rate-limiting everywhere it seems warranted.
Ben Pfaff [Tue, 19 Aug 2008 22:18:51 +0000 (15:18 -0700)]
vlog: Apply rate-limiting everywhere it seems warranted.

15 years agovlog: Implement rate-limiting.
Ben Pfaff [Tue, 19 Aug 2008 22:16:57 +0000 (15:16 -0700)]
vlog: Implement rate-limiting.

15 years agovlog: Simplify vlog() by using dynamic-string functions.
Ben Pfaff [Tue, 19 Aug 2008 20:58:59 +0000 (13:58 -0700)]
vlog: Simplify vlog() by using dynamic-string functions.