Mailing List Archive: Quagga: Bugs

[Bug 465] zebra does not see changes to netgraph interfaces on FreeBSD

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bugzilla-daemon at allevil

Jul 1, 2008, 7:50 AM

Post #1 of 6 (6600 views)
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[Bug 465] zebra does not see changes to netgraph interfaces on FreeBSD

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http://bugzilla.quagga.net/show_bug.cgi?id=465

------- Additional Comments From paul [at] dishone 2008-07-01 15:50 -------
Can you set 'debug zebra kernel', reproduce and then capture the result (either
by configuring a log file, or issuing 'terminal monitor' in the telnet vty and
copy/pasting)?

Please annotate the debug log file by noting at which points you issued
pertinent commands outside of zebra.

Thanks.

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bugzilla-daemon at allevil

Jul 1, 2008, 8:13 AM

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[Bug 465] zebra does not see changes to netgraph interfaces on FreeBSD [In reply to]

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http://bugzilla.quagga.net/show_bug.cgi?id=465

web [at] pilot changed:

What |Removed |Added
----------------------------------------------------------------------------
CC| |web [at] pilot

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bugzilla-daemon at allevil

Jul 1, 2008, 8:24 AM

Post #3 of 6 (6373 views)
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[Bug 465] zebra does not see changes to netgraph interfaces on FreeBSD [In reply to]

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http://bugzilla.quagga.net/show_bug.cgi?id=465

root [at] net1 changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1

------- Additional Comments From root [at] net1 2008-07-01 16:13 -------
Here's what gets output when a new netgraph interface is set up:

2008/07/01 18:09:26 ZEBRA: Kernel: Len: 24 Type: RTM_IFANNOUNCE
2008/07/01 18:09:26 ZEBRA: Kernel: DYNAMIC MODIFIED
2008/07/01 18:09:26 ZEBRA: Kernel: message seq 0
2008/07/01 18:09:26 ZEBRA: Kernel: pid 0, rtm_addrs 0x0
2008/07/01 18:09:26 ZEBRA: ifan_read: creating interface for ifindex 4, name ng0
2008/07/01 18:09:26 ZEBRA: interface ng0 index 4 becomes active.
2008/07/01 18:09:26 ZEBRA: if_ioctl(SIOCGIFMEDIA) failed: Invalid argument
2008/07/01 18:09:26 ZEBRA: ifan_read: interface ng0 index 4
2008/07/01 18:09:26 ZEBRA: Kernel: Len: 168 Type: RTM_IFINFO
2008/07/01 18:09:26 ZEBRA: Kernel: DYNAMIC STATIC PROTO1
2008/07/01 18:09:26 ZEBRA: Kernel: message seq -1744830464
2008/07/01 18:09:26 ZEBRA: Kernel: pid 53, rtm_addrs 0x4
2008/07/01 18:09:26 ZEBRA: ifm_read: sdl ifname (nil)
2008/07/01 18:09:26 ZEBRA: ifm_read: interface ng0 index 4
2008/07/01 18:09:26 ZEBRA: Kernel: Len: 116 Type: RTM_NEWADDR
2008/07/01 18:09:26 ZEBRA: Kernel:
2008/07/01 18:09:26 ZEBRA: Kernel: message seq 520
2008/07/01 18:09:26 ZEBRA: Kernel: pid 0, rtm_addrs 0x4
2008/07/01 18:09:26 ZEBRA: ifam_read_mesg: RTA_SDL_GET nlen 3, alen 0
2008/07/01 18:09:26 ZEBRA: ifam_read_mesg: ifindex 4, ifname ng0, ifam_addrs 0xb
4, ifam_flags 0x0, addr 213.137.48.5/32 broad 88.213.194.240 dst 0.0.0.0 gateway
0.0.0.0
2008/07/01 18:09:26 ZEBRA: if_ioctl(SIOCGIFMEDIA) failed: Invalid argument
2008/07/01 18:09:26 ZEBRA: Kernel: Len: 184 Type: RTM_ADD
2008/07/01 18:09:26 ZEBRA: Kernel: UP HOST
2008/07/01 18:09:26 ZEBRA: Kernel: message seq 0
2008/07/01 18:09:26 ZEBRA: Kernel: pid 0, rtm_addrs 0x3
2008/07/01 18:09:26 ZEBRA: Kernel: Len: 88 Type: RTM_NEWMADDR
2008/07/01 18:09:26 ZEBRA: Kernel:
2008/07/01 18:09:26 ZEBRA: Kernel: message seq 821
2008/07/01 18:09:26 ZEBRA: Kernel: pid 266808, rtm_addrs 0x4
2008/07/01 18:09:26 ZEBRA: Unprocessed RTM_type: 15

------- Additional Comments From paul [at] dishone 2008-07-01 16:24 -------
Ah, and ifconfig output too please.

Also, can you confirm whether or not 'link-detect' is set in the configuration
for that interface? (I presume it isn't, and it shouldn't make a difference
judging by the output below).

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bugzilla-daemon at allevil

Jul 1, 2008, 8:53 AM

Post #4 of 6 (6368 views)
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[Bug 465] zebra does not see changes to netgraph interfaces on FreeBSD [In reply to]

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http://bugzilla.quagga.net/show_bug.cgi?id=465

paul [at] dishone changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED

------- Additional Comments From root [at] net1 2008-07-01 16:42 -------
link-detect was not set up. Setting it on or of doesn't change the erratic behaviour.

------- Additional Comments From paul [at] dishone 2008-07-01 16:53 -------
Ok, the problem is, I think, that our BSD link-state support assumes that if the
system is capable of the SIOCGIFMEDIA ioctl() then it must work..

An additional problem is that on BSD we ignore the 'link-detect'
interface-configuration flag, which exists precisely so as to make link-state
bugs be opt-in..

I think the about-to-be attached patch should fix things. Please can you re-test
with it, both with 'link-detect' set in the configuration of 'nge0' and without.
(things should work in both caseS).

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bugzilla-daemon at allevil

Jul 1, 2008, 9:07 AM

Post #5 of 6 (6365 views)
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[Bug 465] zebra does not see changes to netgraph interfaces on FreeBSD [In reply to]

Please do not reply directly to this email. All additional
comments should be made in the comments box of this bug
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http://bugzilla.quagga.net/show_bug.cgi?id=465

------- Additional Comments From paul [at] dishone 2008-07-01 16:55 -------
Created an attachment (id=267)
--> (http://bugzilla.quagga.net/attachment.cgi?id=267&action=view)
Fix link-state on BSD, where an interface doesn't implement SIOCGIFMEDIA

Fix link-detection on BSD for the case where SIOCGIFMEDIA fails - should be
treated same as invalid link-state.

Additionally, the whole link-detect logic is supposed to be predicated on the
'link-detect' interface configuration flag having been set. It wasn't on BSD.
Fix.

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bugzilla-daemon at allevil

Jul 1, 2008, 11:25 AM

Post #6 of 6 (6363 views)
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[Bug 465] zebra does not see changes to netgraph interfaces on FreeBSD [In reply to]

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