From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Borkmann Date: Wed, 13 May 2015 07:53:36 +0000 Subject: Re: Checksum at INIT ACK. Message-Id: <55530300.1030000@iogearbox.net> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="euc-kr" Content-Transfer-Encoding: base64 To: linux-sctp@vger.kernel.org T24gMDUvMTMvMjAxNSAwODo0OCBBTSwgTW9vaHlvdW5nIEtJTSB3cm90ZToKPiBUaGFua3MgZm9y IHlvdXIga2luZCByZXNwb25zZQo+IAo+IFRoZSByb290IGNhdXNlIG9mIHRoaXMgcHJvYmxlbSBp cyBwcm9iYWJseSBsa3NjdHAgdGhhdCBpcyBpbmNsdWRlZCBpbiBMaW51eCAyLjYuMzItNDMyLgo+ IEkgZm91bmQgdGhlIGxrc2N0cCB0aGF0IGlzIGluY2x1ZGVkIGluIExpbnV4IDIuNi4zMi01MDQg aXMgY2hhbmdlZCBzb21ldGhpbmcgcmVsYXRlZCB0byBjaGVja3N1bS4KPiBXaGVuIHVzaW5nIHZp cnR1YWwgSVAgb24gYm9uZGluZyBpbnRlcmZhY2UgYXMgb3VyIGNvbmZpZ3VyYXRpb24sIG9sZCBs a3NjdHAgZGlkIG5vdCBzZXQgY2hlY2tzdW0gdmFsdWUgaW50byB0aGVpciBoZWFkZXIuCj4gCj4g QWZ0ZXIgaW5zdGFsbGluZyBrZXJuZWwgdXBkYXRlIHRoYXQgaW5jbHVkZSBuZXcgbGtzY3RwIHRo YXQgdGhpcyBwcm9ibGVtIGlzIHBhdGNoZWQsIHRoZSBjaGVja3N1bSBpcyBzdWNjZXNzZnVsbHkg c2V0LgoKSSBoYXZlIG5vIGNvbmNyZXRlIG92ZXJ2aWV3IG9uIFJIRUwgYW55bW9yZSwgYnV0IEkg cmVtZW1iZXIgdGhhdCB0aGVyZQp3YXMgYSBidWcgd2hlbiB1c2luZyBTQ1RQIG92ZXIgZi5lLiBi b25kaW5nIHdoaWNoIGlmIEkgcmVtZW1iZXIgY29ycmVjdGx5CnRoZSBjb21taXQgYmVsb3cgZml4 ZWQgKHRoZXJlIGFyZSBhbHNvIHNvbWUgbW9yZSByZWNlbnQgb25lcyBkb2luZyB0aGUKc2FtZSBm b3IgeGZybSk6Cgpjb21taXQgYjczYzQzZjg4NGIxYjI2ZWY4ZTgyNGEzM2YzOTI0ZjkyZTQ5M2Mx MQpBdXRob3I6IE1pY2hhqakgTWlyb3OpqWF3IDxtaXJxLWxpbnV4QHJlcmUucW1xbS5wbD4KRGF0 ZTogICBXZWQgSnVsIDEzIDE0OjEwOjI5IDIwMTEgKzAwMDAKCiAgICBuZXQ6IHNjdHA6IGZpeCBj aGVja3N1bSBtYXJraW5nIGZvciBvdXRnb2luZyBwYWNrZXRzCgogICAgUGFja2V0cyB0byBkZXZp Y2VzIHdpdGhvdXQgTkVUSUZfRl9TQ1RQX0NTVU0gKGluY2x1ZGluZyBORVRJRl9GX05PX0NTVU0p CiAgICBzaG91bGQgYmUgcHJvcGVybHkgY2hlY2tzdW1tZWQgYmVjYXVzZSB0aGUgcGFja2V0cyBj YW4gYmUgZGl2ZXJ0ZWQgb3IKICAgIHJlcm91dGVkIGFmdGVyIGNvbnN0cnVjdGlvbi4gVGhpcyBz dGlsbCBsZWF2ZXMgcGFja2V0cyBkaXZlcnRlZCBmcm9tCiAgICBORVRJRl9GX1NDVFBfQ1NVTS1l bmFibGVkIGRldmljZXMgd2l0aCBicm9rZW4gY2hlY2tzdW1zLiBGaXhpbmcgdGhpcwogICAgbmVl ZHMgaW1wbGVtZW50aW5nIHNvZnR3YXJlIG9mZmxvYWQgZmFsbGJhY2sgaW4gbmV0d29ya2luZyBj b3JlLgoKICAgIEZvciB1c2VycyBvZiBzY3RwX2NoZWNrc3VtX2Rpc2FibGUsIHNrYi0+aXBfc3Vt bWVkIHNob3VsZCBiZSBsZWZ0IGFzCiAgICBDSEVDS1NVTV9OT05FIGFuZCBub3QgQ0hFQ0tTVU1f VU5ORUNFU1NBUlkgYXMgcGVyIGluY2x1ZGUvbGludXgvc2tidWZmLmguCgogICAgU2lnbmVkLW9m Zi1ieTogTWljaGGpqSBNaXJvc6mpYXcgPG1pcnEtbGludXhAcmVyZS5xbXFtLnBsPgogICAgU2ln bmVkLW9mZi1ieTogRGF2aWQgUy4gTWlsbGVyIDxkYXZlbUBkYXZlbWxvZnQubmV0PgoKVGhhdCdz IHdoeSB5b3UgbW9zdCBsaWtlbHkgZG9uJ3Qgc2VlIHRoaXMgYW55bW9yZSBvbiBuZXdlciBSSEVM Ni4KCj4gVGhhbmtzCj4gCj4gMjAxNS4gNS4gMTMuLCC/wMjEIDI6NTUsIE1pY2hhZWwgVHVleGVu IDxNaWNoYWVsLlR1ZXhlbkBsdXJjaGkuZnJhbmtlbi5kZT4gwNu8ujoKPiAKPj4gT24gMTMgTWF5 IDIwMTUsIGF0IDA0OjE0LCBNb29oeW91bmcgS0lNIDxlbXVzYWxAZ21haWwuY29tPiB3cm90ZToK Pj4KPj4gRGVhciBhbGwsCj4+Cj4+IEkgYW0gY3VycmVudGx5IHRyeWluZyB0byBtYWtlIGFuIGFz c29jaWF0aW9uIHdpdGggb3R0ZXIgdmVuZG9yJ3Mgc3lzdGVtLiBidXQgaXQgaXMgZmFpbGVkLgo+ PiBUaGUgZW5naW5lZXIgb2YgcGVlciBzaWRlIHJlcXVlc3RzIG1lIHRvIHNldCBjaGVja3N1bSBw YXJhbWV0ZXIgaW50byBJTklUIEFjay4gbWVzc2FnZSB3ZSBzZW50Lgo+Pgo+PiBRMS4gaXMgaXQg cG9zc2libGUgdG8gZGlmZmVyZW50bHkgc2V0IGNoZWNrc3VtIHZhbHVlIGZvciBlYWNoIGFzc29j aWF0aW9ucyBvbiBsaW51eC1zY3RwPwo+PiBRMi0xLiBJZiBpdCBpcyBwb3NzaWJsZSB0byBzZXQg Y2hlY2tzdW0gc2VwYXJhdGVseSwgaG93IHRvIHNldCB0aGUgZmxhZyBlaXRoZXIgdXNlIG9yIG5v dD8KPj4gUTItMi4gSWYgaXQgaXMgTk9UIHBvc3NpYmxlLCB3ZSBNVVNUIHR1cm4gdGhlIGNoZWNr c3VtIGZlYXR1cmUgb24gZm9yIHdob2xlIGFzc29jaWF0aW9uPyBob3cgdG8gZG8gdGhhdD8gSSBh bSB1c2luZyBsa3NjdHAtMS4wLjEwLTcgb24gTGludXggMi42LjMyLTQzMiAoUkhFTDYpLgo+IFND VFAgb25seSB1c2VzIENSQzMyYyBhcyB0aGUgY2hlY2tzdW0gYW5kIGl0IGlzIG1hbmRhdG9yeSB0 byB1c2UgaXQuIFRoZXJlIGlzIG5vCj4gImNoZWNrc3VtIHBhcmFtZXRlciIgZm9yIG5lZ290aWF0 aW5nIGl0Lgo+IERvZXMgeW91ciBwZWVyIHN0aWxsIHVzZSB0aGUgZGVwcmVjYXRlZCBBZGxlcjMy PyBJdCBoYXMgYmVlbiBjaGFuZ2VkIHRvIENSQzMyYyBpbgo+IGh0dHBzOi8vdG9vbHMuaWV0Zi5v cmcvaHRtbC9yZmMzMzA5Cj4gVGhlIHVwZGF0ZWQgU0NUUCBzcGVjaWZpY2F0aW9uCj4gaHR0cHM6 Ly90b29scy5pZXRmLm9yZy9odG1sL3JmYzQ5NjAKPiBkb2Vzbid0IG1lbnRpb24gQWRsZXIzMiBh bnltb3JlLgo+IAo+IEJlc3QgcmVnYXJkcwo+IE1pY2hhZWwKCi0tClRvIHVuc3Vic2NyaWJlIGZy b20gdGhpcyBsaXN0OiBzZW5kIHRoZSBsaW5lICJ1bnN1YnNjcmliZSBsaW51eC1zY3RwIiBpbgp0 aGUgYm9keSBvZiBhIG1lc3NhZ2UgdG8gbWFqb3Jkb21vQHZnZXIua2VybmVsLm9yZwpNb3JlIG1h am9yZG9tbyBpbmZvIGF0ICBodHRwOi8vdmdlci5rZXJuZWwub3JnL21ham9yZG9tby1pbmZvLmh0 bWw=