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Date: Thu, 28 Apr 2011 10:09:33 +0900
From: Michio Honda <micchie@....wide.ad.jp>
To: Wei Yongjun <yjwei@...fujitsu.com>
Cc: netdev@...r.kernel.org, YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
Subject: Re: [PATCH 0/6] sctp: Auto-ASCONF patch series
I resubmitted patches, thanks!
- Michio
On Apr 27, 2011, at 18:43 , Wei Yongjun wrote:
>
>
>> mmm, can you send me the test program?
>> I'll fix ASAP!
>
> Host1:
> $sctp_test -H 0.0.0.0 -P 9000 -l
>
> Host2:
> $ifconfig eth2
> eth2 Link encap:Ethernet HWaddr 52:54:00:70:99:3D
> inet addr:192.168.1.21 Bcast:192.168.1.255 Mask:255.255.255.0
> inet6 addr: 3ffe:501:ffff:101:5054:ff:fe70:993d/64 Scope:Global
> inet6 addr: fe80::5054:ff:fe70:993d/64 Scope:Link
> ...
>
> ifconfig eth1
> eth1 Link encap:Ethernet HWaddr 52:54:00:1A:F0:5C
> inet addr:192.168.0.21 Bcast:192.168.0.255 Mask:255.255.255.0
> inet6 addr: 3ffe:501:ffff:100:5054:ff:fe1a:f05c/64 Scope:Global
> inet6 addr: fe80::5054:ff:fe1a:f05c/64 Scope:Link
> ...
>
> $ifdown eth2
> $sctp_test -H 0.0.0.0 -P 9000 -h 192.168.0.19 -p 9000 -s -x 1 -D -T&
> $ifup eth1
>
> and tcpdump and eth1
>
> You may need some thing like this:
>
> [PATCH 3/6] sctp: Add Auto-ASCONF support (core).
>
> +int sctp_asconf_mgmt(struct sctp_sock *sp, struct sctp_sockaddr_entry *addrw)
> +{
> + struct sock *sk = sctp_opt2sk(sp);
> + union sctp_addr *addr;
> +
> + /* It is safe to write port space in caller. */
> + addr = &addrw->a;
> + addr->v4.sin_port = htons(sp->ep->base.bind_addr.port);
> +
> af = sctp_get_af_specific(...);
>
> if (sctp_verify_addr(sk, &to, af->sockaddr_len))
> return;
>
> + if (addrw->state == SCTP_ADDR_NEW)
> + return sctp_send_asconf_add_ip(sk, (struct sockaddr *)addr, 1);
> + else
> + return sctp_send_asconf_del_ip(sk, (struct sockaddr *)addr, 1);
> +}
>
>
>
>
>> - Michio
>>
>> On Apr 27, 2011, at 18:28 , Wei Yongjun wrote:
>>
>>>> From 9ede9db0ec4b03d3061a5bfed78328cb5528b908 Mon Sep 17 00:00:00 2001
>>>> From: Michio Honda <micchie@....wide.ad.jp>
>>>> Date: Wed, 27 Apr 2011 17:16:21 +0900
>>>> Subject: [PATCH 0/6] sctp: Auto-ASCONF patch series
>>>>
>>>> Series of 6 patches to support auto_asconf and the other related functionalities that auto_asconf relies on.
>>>>
>>>> Michio Honda (5):
>>>> sctp: Add ADD/DEL ASCONF handling at the receiver.
>>>> sctp: Add Auto-ASCONF support (core).
>>>> sctp: Add sysctl support for Auto-ASCONF.
>>>> sctp: Add socket option operation for Auto-ASCONF.
>>>> sctp: sctp: Add ASCONF operation on the single-homed host
>>>>
>>>> YOSHIFUJI Hideaki (1):
>>>> sctp: Allow regular C expression in 4th argument for
>>>> SCTP_DEBUG_PRINTK_IPADDR macro.
>>>
>>> When I test this patchset using IPv4 only socket,
>>> Host1:
>>> #sctp_test -H 0.0.0.0 -P 9000 -l
>>> Host2:
>>> #sctp_test -H 0.0.0.0 -P 9000 -h 192.168.0.19 -p 9000 -s -x 1 -D -T
>>> I got following unexpected thing, IPv6 address be added to the asoc.
>>>
>>> Frame 3 (118 bytes on wire, 118 bytes captured)
>>> Arrival Time: Apr 27, 2011 17:17:59.572897000
>>> [Time delta from previous captured frame: 13.804056000 seconds]
>>> [Time delta from previous displayed frame: 13.804056000 seconds]
>>> [Time since reference or first frame: 13.804105000 seconds]
>>> Frame Number: 3
>>> Frame Length: 118 bytes
>>> Capture Length: 118 bytes
>>> [Frame is marked: False]
>>> [Protocols in frame: eth:ip:sctp]
>>> Ethernet II, Src: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c), Dst: RealtekU_21:3c:7c (52:54:00:21:3c:7c)
>>> Destination: RealtekU_21:3c:7c (52:54:00:21:3c:7c)
>>> Address: RealtekU_21:3c:7c (52:54:00:21:3c:7c)
>>> .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
>>> .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
>>> Source: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c)
>>> Address: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c)
>>> .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
>>> .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
>>> Type: IP (0x0800)
>>> Internet Protocol, Src: 192.168.0.21 (192.168.0.21), Dst: 192.168.0.19 (192.168.0.19)
>>> Version: 4
>>> Header length: 20 bytes
>>> Differentiated Services Field: 0x02 (DSCP 0x00: Default; ECN: 0x02)
>>> 0000 00.. = Differentiated Services Codepoint: Default (0x00)
>>> .... ..1. = ECN-Capable Transport (ECT): 1
>>> .... ...0 = ECN-CE: 0
>>> Total Length: 104
>>> Identification: 0x001e (30)
>>> Flags: 0x02 (Don't Fragment)
>>> 0.. = Reserved bit: Not Set
>>> .1. = Don't fragment: Set
>>> ..0 = More fragments: Not Set
>>> Fragment offset: 0
>>> Time to live: 64
>>> Protocol: SCTP (0x84)
>>> Header checksum: 0xb879 [correct]
>>> [Good: True]
>>> [Bad : False]
>>> Source: 192.168.0.21 (192.168.0.21)
>>> Destination: 192.168.0.19 (192.168.0.19)
>>> Stream Control Transmission Protocol, Src Port: 9000 (9000), Dst Port: 9000 (9000)
>>> Source port: 9000
>>> Destination port: 9000
>>> Verification tag: 0x2b1e0377
>>> Checksum: 0x2a2e5aff (not verified)
>>> AUTH chunk
>>> Chunk type: AUTH (15)
>>> 0... .... = Bit: Stop processing of the packet
>>> .0.. .... = Bit: Do not report
>>> Chunk flags: 0x00
>>> Chunk length: 28
>>> Shared key identifier: 0
>>> HMAC identifier: SHA-1 (1)
>>> HMAC: AA21B3835E1069FBFFA3589B1EB4C0AE47021F15
>>> ASCONF chunk
>>> Chunk type: ASCONF (193)
>>> 1... .... = Bit: Skip chunk and continue processing of the packet
>>> .1.. .... = Bit: Do report
>>> Chunk flags: 0x00
>>> Chunk length: 44
>>> Serial number: 0xfa0b220b
>>> IPv4 address parameter (Address: 192.168.1.21)
>>> Parameter type: IPv4 address (0x0005)
>>> 0... .... .... .... = Bit: Stop processing of chunk
>>> .0.. .... .... .... = Bit: Do not report
>>> Parameter length: 8
>>> IP Version 4 address: 192.168.1.21 (192.168.1.21)
>>> Delete IP address parameter (Address: 3ffe:501:ffff:101:5054:ff:fe70:993d, correlation ID: 0)
>>> Parameter type: Delete IP address (0xc002)
>>> 1... .... .... .... = Bit: Skip parameter and continue processing of the chunk
>>> .1.. .... .... .... = Bit: Do report
>>> Parameter length: 28
>>> Correlation_id: 0x00000000
>>> IPv6 address parameter (Address: 3ffe:501:ffff:101:5054:ff:fe70:993d)
>>> Parameter type: IPv6 address (0x0006)
>>> 0... .... .... .... = Bit: Stop processing of chunk
>>> .0.. .... .... .... = Bit: Do not report
>>> Parameter length: 20
>>> IP Version 6 address: 3ffe:501:ffff:101:5054:ff:fe70:993d (3ffe:501:ffff:101:5054:ff:fe70:993d)
>>>
>>> No. Time Source Destination Protocol Info
>>> 4 13.804193 192.168.0.19 192.168.0.21 SCTP AUTH ASCONF_ACK
>>>
>>> Frame 4 (122 bytes on wire, 122 bytes captured)
>>> Arrival Time: Apr 27, 2011 17:17:59.572985000
>>> [Time delta from previous captured frame: 0.000088000 seconds]
>>> [Time delta from previous displayed frame: 0.000088000 seconds]
>>> [Time since reference or first frame: 13.804193000 seconds]
>>> Frame Number: 4
>>> Frame Length: 122 bytes
>>> Capture Length: 122 bytes
>>> [Frame is marked: False]
>>> [Protocols in frame: eth:ip:sctp]
>>> Ethernet II, Src: RealtekU_21:3c:7c (52:54:00:21:3c:7c), Dst: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c)
>>> Destination: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c)
>>> Address: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c)
>>> .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
>>> .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
>>> Source: RealtekU_21:3c:7c (52:54:00:21:3c:7c)
>>> Address: RealtekU_21:3c:7c (52:54:00:21:3c:7c)
>>> .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
>>> .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
>>> Type: IP (0x0800)
>>> Internet Protocol, Src: 192.168.0.19 (192.168.0.19), Dst: 192.168.0.21 (192.168.0.21)
>>> Version: 4
>>> Header length: 20 bytes
>>> Differentiated Services Field: 0x02 (DSCP 0x00: Default; ECN: 0x02)
>>> 0000 00.. = Differentiated Services Codepoint: Default (0x00)
>>> .... ..1. = ECN-Capable Transport (ECT): 1
>>> .... ...0 = ECN-CE: 0
>>> Total Length: 108
>>> Identification: 0x0000 (0)
>>> Flags: 0x02 (Don't Fragment)
>>> 0.. = Reserved bit: Not Set
>>> .1. = Don't fragment: Set
>>> ..0 = More fragments: Not Set
>>> Fragment offset: 0
>>> Time to live: 64
>>> Protocol: SCTP (0x84)
>>> Header checksum: 0xb893 [correct]
>>> [Good: True]
>>> [Bad : False]
>>> Source: 192.168.0.19 (192.168.0.19)
>>> Destination: 192.168.0.21 (192.168.0.21)
>>> Stream Control Transmission Protocol, Src Port: 9000 (9000), Dst Port: 9000 (9000)
>>> Source port: 9000
>>> Destination port: 9000
>>> Verification tag: 0x1b2d2288
>>> Checksum: 0x9b288dab (not verified)
>>> AUTH chunk
>>> Chunk type: AUTH (15)
>>> 0... .... = Bit: Stop processing of the packet
>>> .0.. .... = Bit: Do not report
>>> Chunk flags: 0x00
>>> Chunk length: 28
>>> Shared key identifier: 0
>>> HMAC identifier: SHA-1 (1)
>>> HMAC: DDB8D3766671957FABA3554DE588599C9624DCBB
>>> ASCONF_ACK chunk
>>> Chunk type: ASCONF_ACK (128)
>>> 1... .... = Bit: Skip chunk and continue processing of the packet
>>> .0.. .... = Bit: Do not report
>>> Chunk flags: 0x00
>>> Chunk length: 48
>>> Serial number: 0xfa0b220b
>>> Error cause indication parameter
>>> Parameter type: Error cause indication (0xc003)
>>> 1... .... .... .... = Bit: Skip parameter and continue processing of the chunk
>>> .1.. .... .... .... = Bit: Do report
>>> Parameter length: 40
>>> Correlation_id: 0x00000000
>>> Unresolvable address cause (Address: )
>>> Cause code: Unresolvable address (0x0005)
>>> Cause length: 32
>>> Delete IP address parameter (Address: 3ffe:501:ffff:101:5054:ff:fe70:993d, correlation ID: 0)
>>> Parameter type: Delete IP address (0xc002)
>>> 1... .... .... .... = Bit: Skip parameter and continue processing of the chunk
>>> .1.. .... .... .... = Bit: Do report
>>> Parameter length: 28
>>> Correlation_id: 0x00000000
>>> IPv6 address parameter (Address: 3ffe:501:ffff:101:5054:ff:fe70:993d)
>>> Parameter type: IPv6 address (0x0006)
>>> 0... .... .... .... = Bit: Stop processing of chunk
>>> .0.. .... .... .... = Bit: Do not report
>>> Parameter length: 20
>>> IP Version 6 address: 3ffe:501:ffff:101:5054:ff:fe70:993d (3ffe:501:ffff:101:5054:ff:fe70:993d)
>>> Frame 5 (118 bytes on wire, 118 bytes captured)
>>> Arrival Time: Apr 27, 2011 17:17:59.573941000
>>> [Time delta from previous captured frame: 0.000956000 seconds]
>>> [Time delta from previous displayed frame: 0.000956000 seconds]
>>> [Time since reference or first frame: 13.805149000 seconds]
>>> Frame Number: 5
>>> Frame Length: 118 bytes
>>> Capture Length: 118 bytes
>>> [Frame is marked: False]
>>> [Protocols in frame: eth:ip:sctp]
>>> Ethernet II, Src: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c), Dst: RealtekU_21:3c:7c (52:54:00:21:3c:7c)
>>> Destination: RealtekU_21:3c:7c (52:54:00:21:3c:7c)
>>> Address: RealtekU_21:3c:7c (52:54:00:21:3c:7c)
>>> .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
>>> .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
>>> Source: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c)
>>> Address: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c)
>>> .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
>>> .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
>>> Type: IP (0x0800)
>>> Internet Protocol, Src: 192.168.0.21 (192.168.0.21), Dst: 192.168.0.19 (192.168.0.19)
>>> Version: 4
>>> Header length: 20 bytes
>>> Differentiated Services Field: 0x02 (DSCP 0x00: Default; ECN: 0x02)
>>> 0000 00.. = Differentiated Services Codepoint: Default (0x00)
>>> .... ..1. = ECN-Capable Transport (ECT): 1
>>> .... ...0 = ECN-CE: 0
>>> Total Length: 104
>>> Identification: 0x001f (31)
>>> Flags: 0x02 (Don't Fragment)
>>> 0.. = Reserved bit: Not Set
>>> .1. = Don't fragment: Set
>>> ..0 = More fragments: Not Set
>>> Fragment offset: 0
>>> Time to live: 64
>>> Protocol: SCTP (0x84)
>>> Header checksum: 0xb878 [correct]
>>> [Good: True]
>>> [Bad : False]
>>> Source: 192.168.0.21 (192.168.0.21)
>>> Destination: 192.168.0.19 (192.168.0.19)
>>> Stream Control Transmission Protocol, Src Port: 9000 (9000), Dst Port: 9000 (9000)
>>> Source port: 9000
>>> Destination port: 9000
>>> Verification tag: 0x2b1e0377
>>> Checksum: 0x91cfddc0 (not verified)
>>> AUTH chunk
>>> Chunk type: AUTH (15)
>>> 0... .... = Bit: Stop processing of the packet
>>> .0.. .... = Bit: Do not report
>>> Chunk flags: 0x00
>>> Chunk length: 28
>>> Shared key identifier: 0
>>> HMAC identifier: SHA-1 (1)
>>> HMAC: 2293892E2642A2D0E8911A669761E86134A47BD0
>>> ASCONF chunk
>>> Chunk type: ASCONF (193)
>>> 1... .... = Bit: Skip chunk and continue processing of the packet
>>> .1.. .... = Bit: Do report
>>> Chunk flags: 0x00
>>> Chunk length: 44
>>> Serial number: 0xfa0b220c
>>> IPv6 address parameter (Address: 3ffe:501:ffff:101:5054:ff:fe70:993d)
>>> Parameter type: IPv6 address (0x0006)
>>> 0... .... .... .... = Bit: Stop processing of chunk
>>> .0.. .... .... .... = Bit: Do not report
>>> Parameter length: 20
>>> IP Version 6 address: 3ffe:501:ffff:101:5054:ff:fe70:993d (3ffe:501:ffff:101:5054:ff:fe70:993d)
>>> Delete IP address parameter (Address: 192.168.1.21, correlation ID: 0)
>>> Parameter type: Delete IP address (0xc002)
>>> 1... .... .... .... = Bit: Skip parameter and continue processing of the chunk
>>> .1.. .... .... .... = Bit: Do report
>>> Parameter length: 16
>>> Correlation_id: 0x00000000
>>> IPv4 address parameter (Address: 192.168.1.21)
>>> Parameter type: IPv4 address (0x0005)
>>> 0... .... .... .... = Bit: Stop processing of chunk
>>> .0.. .... .... .... = Bit: Do not report
>>> Parameter length: 8
>>> IP Version 4 address: 192.168.1.21 (192.168.1.21)
>>>
>>> No. Time Source Destination Protocol Info
>>> 6 13.805190 192.168.0.19 192.168.0.21 SCTP AUTH ASCONF_ACK
>>>
>>> Frame 6 (82 bytes on wire, 82 bytes captured)
>>> Arrival Time: Apr 27, 2011 17:17:59.573982000
>>> [Time delta from previous captured frame: 0.000041000 seconds]
>>> [Time delta from previous displayed frame: 0.000041000 seconds]
>>> [Time since reference or first frame: 13.805190000 seconds]
>>> Frame Number: 6
>>> Frame Length: 82 bytes
>>> Capture Length: 82 bytes
>>> [Frame is marked: False]
>>> [Protocols in frame: eth:ip:sctp]
>>> Ethernet II, Src: RealtekU_21:3c:7c (52:54:00:21:3c:7c), Dst: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c)
>>> Destination: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c)
>>> Address: RealtekU_1a:f0:5c (52:54:00:1a:f0:5c)
>>> .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
>>> .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
>>> Source: RealtekU_21:3c:7c (52:54:00:21:3c:7c)
>>> Address: RealtekU_21:3c:7c (52:54:00:21:3c:7c)
>>> .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
>>> .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
>>> Type: IP (0x0800)
>>> Internet Protocol, Src: 192.168.0.19 (192.168.0.19), Dst: 192.168.0.21 (192.168.0.21)
>>> Version: 4
>>> Header length: 20 bytes
>>> Differentiated Services Field: 0x02 (DSCP 0x00: Default; ECN: 0x02)
>>> 0000 00.. = Differentiated Services Codepoint: Default (0x00)
>>> .... ..1. = ECN-Capable Transport (ECT): 1
>>> .... ...0 = ECN-CE: 0
>>> Total Length: 68
>>> Identification: 0x0000 (0)
>>> Flags: 0x02 (Don't Fragment)
>>> 0.. = Reserved bit: Not Set
>>> .1. = Don't fragment: Set
>>> ..0 = More fragments: Not Set
>>> Fragment offset: 0
>>> Time to live: 64
>>> Protocol: SCTP (0x84)
>>> Header checksum: 0xb8bb [correct]
>>> [Good: True]
>>> [Bad : False]
>>> Source: 192.168.0.19 (192.168.0.19)
>>> Destination: 192.168.0.21 (192.168.0.21)
>>> Stream Control Transmission Protocol, Src Port: 9000 (9000), Dst Port: 9000 (9000)
>>> Source port: 9000
>>> Destination port: 9000
>>> Verification tag: 0x1b2d2288
>>> Checksum: 0x0962e46c (not verified)
>>> AUTH chunk
>>> Chunk type: AUTH (15)
>>> 0... .... = Bit: Stop processing of the packet
>>> .0.. .... = Bit: Do not report
>>> Chunk flags: 0x00
>>> Chunk length: 28
>>> Shared key identifier: 0
>>> HMAC identifier: SHA-1 (1)
>>> HMAC: DBE65D3AB3FB77D29FE2870BBB9ECCE4DC6D5EB6
>>> ASCONF_ACK chunk
>>> Chunk type: ASCONF_ACK (128)
>>> 1... .... = Bit: Skip chunk and continue processing of the packet
>>> .0.. .... = Bit: Do not report
>>> Chunk flags: 0x00
>>> Chunk length: 8
>>> Serial number: 0xfa0b220c
>>>
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