From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 59942C43387 for ; Thu, 20 Dec 2018 15:31:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 20634217D8 for ; Thu, 20 Dec 2018 15:31:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730932AbeLTPbm (ORCPT ); Thu, 20 Dec 2018 10:31:42 -0500 Received: from mx2.suse.de ([195.135.220.15]:56200 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725440AbeLTPbl (ORCPT ); Thu, 20 Dec 2018 10:31:41 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 64D85AF8D; Thu, 20 Dec 2018 15:31:38 +0000 (UTC) Subject: Re: [PATCH v5 5/6] net: maclorawan: Implement maclorawan class module To: Ben Whitten Cc: Jian-Hong Pan , Jiri Pirko , "David S. Miller" , Alan Cox , "linux-lpwan@lists.infradead.org" , "netdev@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , Marcel Holtmann , Dollar Chen , Ken Yu , linux-wpan - ML References: <20181216101858.9585-6-starnight@g.ncu.edu.tw> <20181217140233.GG2096@nanopsycho> <60ff6940-4bcc-750c-ad38-0a183375169f@suse.de> From: =?UTF-8?Q?Andreas_F=c3=a4rber?= Openpgp: preference=signencrypt Autocrypt: addr=afaerber@suse.de; prefer-encrypt=mutual; keydata= xsFNBE6W6ZQBEAC/BIukDnkVenIkK9O14UucicBIVvRB5WSMHC23msS+R2h915mW7/vXfn+V 0nrr5ECmEg/5OjujKf0x/uhJYrsxcp45nDyYCk+RYoOJmGzzUFya1GvT/c04coZ8VmgFUWGE vCfhHJro85dZUL99IoLP21VXEVlCPyIngSstikeuf14SY17LPTN1aIpGQDI2Qt8HHY1zOVWv iz53aiFLFeIVhQlBmOABH2Ifr2M9loRC9yOyGcE2GhlzgyHGlQxEVGFn/QptX6iYbtaTBTU0 c72rpmbe1Nec6hWuzSwu2uE8lF+HYcYi+22ml1XBHNMBeAdSEbSfDbwc///8QKtckUzbDvME S8j4KuqQhwvYkSg7dV9rs53WmjO2Wd4eygkC3tBhPM5s38/6CVGl3ABiWJs3kB08asUNy8Wk juusU/nRJbXDzxu1d+hv0d+s5NOBy/5+7Pa6HeyBnh1tUmCs5/f1D/cJnuzzYwAmZTHFUsfQ ygGBRRKpAVu0VxCFNPSYKW0ULi5eZV6bcj+NAhtafGsWcv8WPFXgVE8s2YU38D1VtlBvCo5/ 0MPtQORqAQ/Itag1EHHtnfuK3MBtA0fNxQbb2jha+/oMAi5hKpmB/zAlFoRtYHwjFPFldHfv Iljpe1S0rDASaF9NsQPfUBEm7dA5UUkyvvi00HZ3e7/uyBGb0QARAQABzSJBbmRyZWFzIEbD pHJiZXIgPGFmYWVyYmVyQHN1c2UuZGU+wsF7BBMBAgAlAhsDBgsJCAcDAgYVCAIJCgsEFgID AQIeAQIXgAUCTqGJnQIZAQAKCRD6LtEtPn4BPzetD/4rF6k/HF+9U9KqykfJaWdUHJvXpI85 Roab12rQbiIrL4hVEYKrYwPEKpCf+FthXpgOq+JdTGJ831DMlTx7Ed5/QJ9KAAQuhZlSNjSc +FNobJm7EbFv9jWFjQC0JcOl17Ji1ikgRcIRDCul1nQh9jCdfh1b848GerZmzteNdT9afRJm 7rrvMqXs1Y52/dTlfIW0ygMA2n5Vv3EwykXJOPF6fRimkErKO84sFMNg0eJV9mXs+Zyionfi g2sZJfVeKjkDqjxy7sDDBZZR68I9HWq5VJQrXqQkCZUvtr6TBLI+uiDLbGRUDNxA3wgjVdS2 v9bhjYceSOHpKU+h3H2S8ju9rjhOADT2F5lUQMTSpjlzglh8IatV5rXLGkXEyum4MzMo2sCE Cr+GD6i2M3pHCtaIVV3xV0nRGALa6DdF7jBWqM54KHaKsE883kFH2+6ARcPCPrnPm7LX98h2 4VpG984ysoq6fpzHHG/KCaYCEOe1bpr3Plmmp3sqj0utA6lwzJy0hj5dqug+lqmg7QKAnxl+ porgluoY56U0X0PIVBc0yO0dWqRxtylJa9kDX/TKwFYNVddMn2NQNjOJXzx2H9hf0We7rG7+ F/vgwALVVYbiTzvp2L0XATTv/oX4BHagAa/Qc3dIsBYJH+KVhBp+ZX4uguxk4xlc2hm75b1s cqeAD87BTQROlumUARAAzd7eu+tw/52FB7xQZWDv5aF+6CAkoz7AuY4s1fo0AQQDqjLOdpQF bifdH7B8SnsA4eo0syfs+1tZW6nn9hdy1GHEMbeuvdhNwkhEfYGDYpSue7oVxB4jajKvRHAP VcewKZIxvIiZ5aSp5n1Bd7B0c0C443DHiWE/0XWSpvbU7fTzTNvdz+2OZmGtqCn610gBqScv 1BOiP3OfLly8ghxcJsos23c0mkB/1iWlzh3UMFIGrzsK3sZJ/3uRaLYFimmqqPlSwFqx3b0M 1gFdHWKfOpvQ4wwP5P10xwvqNXLWC30wB1QmJGD/X8aAoVNnGsmEL7GcWF4cLoOSRidSoccz znShE+Ap+FVDD6MRyesNT4D67l792//B38CGJRdELtNacdwazaFgxH9O85Vnd70ZC7fIcwzG yg/4ZEf96DlAvrSOnu/kgklofEYdzpZmW+Fqas6cnk6ZaHa35uHuBPesdE13MVz5TeiHGQTW xP1jbgWQJGPvJZ+htERT8SZGBQRb1paoRd1KWQ1mlr3CQvXtfA/daq8p/wL48sXrKNwedrLV iZOeJOFwfpJgsFU4xLoO/8N0RNFsnelBgWgZE3ZEctEd4BsWFUw+czYCPYfqOcJ556QUGA9y DeDcxSitpYrNIvpk4C5CHbvskVLKPIUVXxTNl8hAGo1Ahm1VbNkYlocAEQEAAcLBXwQYAQIA CQUCTpbplAIbDAAKCRD6LtEtPn4BPzA6D/9TbSBOPM99SHPX9JiEQAw4ITCBF2oTWeZQ6RJg RKpB15lzyPfyFbNSceJp9dCiwDWe+pzKaX6KYOFZ5+YTS0Ph2eCR+uT2l6Mt6esAun8dvER/ xlPDW7p88dwGUcV8mHEukWdurSEDTj8V3K29vpgvIgRq2lHCn2wqRQBGpiJAt72Vg0HxUlwN GAJNvhpeW8Yb43Ek7lWExkUgOfNsDCTvDInF8JTFtEXMnUcPxC0d/GdAuvBilL9SlmzvoDIZ 5k2k456bkY3+3/ydDvKU5WIgThydyCEQUHlmE6RdA3C1ccIrIvKjVEwSH27Pzy5jKQ78qnhv dtLLAavOXyBJnOGlNDOpOyBXfv02x91RoRiyrSIM7dKmMEINKQlAMgB/UU/6B+mvzosbs5d3 4FPzBLuuRz9WYzXmnC460m2gaEVk1GjpidBWw0yY6kgnAM3KhwCFSecqUQCvwKFDGSXDDbCr w08b3GDk40UoCoUq9xrGfhlf05TUSFTg2NlSrK7+wAEsTUgs2ZYLpHyEeftoDDnKpM4ghs/O ceCeyZUP1zSgRSjgITQp691Uli5Nd1mIzaaM8RjOE/Rw67FwgblKR6HAhSy/LYw1HVOu+Ees RAEdbtRt37A8brlb/ENxbLd9SGC8/j20FQjit7oPNMkTJDs7Uo2eb7WxOt5pSTVVqZkv7Q== Organization: SUSE Linux GmbH Message-ID: Date: Thu, 20 Dec 2018 16:31:34 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 20.12.18 um 11:19 schrieb Ben Whitten: >>>> The hard-MAC implementations will be on my plate mostly, as both SX1276 >>>> and SX1301 need the soft-MAC. >>> >>> On the SX1301 side of things, the ability to send messages as a LoRaWAN >>> node device is a niche use case, the majority if not all people will use the >>> concentrator card as the pass through gateway to the node. >>> >>> In this mode of operation the parameters for transmission such as; >> frequency, >>> spreading factor / data rate, power, are given by a remote server and passed >>> in from the userspace application which received it. >>> Eventually in the kernel these need to be checked locally to ensure >> regulatory >>> compliance. >>> To that end I have experimented with framing, as CAN does, so that this >>> metadata can be provided on a write from userspace to the SX1301 driver. >>> >>> Sounds like we need different protocols for framing within the protocol >> family. >>> Raw in the case of nodes and framed with metadata in the case of >> concentrator >>> cards, thoughts? >> >> Yes, I have thought the roles of node and gateway. They may have >> different skb passing paths. >> As you mentioned, many things of the gateway is controlled by the >> remote server. So, I only implement the path for nodes right now. >> Maybe, we can have a role flag: node, gateway which can be assigned by >> some way. Then, the skb can be decode, checked and passed according >> to the role flag. And module also checks the integrity (MIC, length >> ...) and filter out the bad skb before sends to next stop. > > As IP have IPPROTO_TCP, IPPROTO_UDP, etc maybe we can have > LORA_PROTO_MODULE, LORA_PROTO_GATEWAY which dictates the > pathway and skb format. No, please don't. You were on track with your earlier comment: The user decides what he wants to do by selecting PF_LORAWAN with SOCK_DGRAM/_SEQPACKET vs. SOCK_RAW (or PF_PACKET with ETH_P_LORA[WAN]). The terminology "gateway" has little to do with it. I've heard of packet forwarders using JSON format for communication with their backend, so it appears to highly depend on what exactly the gateway wants to do and how the user wants to access the needed data. Regards, Andreas -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Andreas_F=c3=a4rber?= Subject: Re: [PATCH v5 5/6] net: maclorawan: Implement maclorawan class module Date: Thu, 20 Dec 2018 16:31:34 +0100 Message-ID: References: <20181216101858.9585-6-starnight@g.ncu.edu.tw> <20181217140233.GG2096@nanopsycho> <60ff6940-4bcc-750c-ad38-0a183375169f@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Cc: Jian-Hong Pan , Jiri Pirko , "David S. Miller" , Alan Cox , "linux-lpwan@lists.infradead.org" , "netdev@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , Marcel Holtmann , Dollar Chen , Ken Yu , linux-wpan - ML To: Ben Whitten Return-path: In-Reply-To: Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Am 20.12.18 um 11:19 schrieb Ben Whitten: >>>> The hard-MAC implementations will be on my plate mostly, as both SX1276 >>>> and SX1301 need the soft-MAC. >>> >>> On the SX1301 side of things, the ability to send messages as a LoRaWAN >>> node device is a niche use case, the majority if not all people will use the >>> concentrator card as the pass through gateway to the node. >>> >>> In this mode of operation the parameters for transmission such as; >> frequency, >>> spreading factor / data rate, power, are given by a remote server and passed >>> in from the userspace application which received it. >>> Eventually in the kernel these need to be checked locally to ensure >> regulatory >>> compliance. >>> To that end I have experimented with framing, as CAN does, so that this >>> metadata can be provided on a write from userspace to the SX1301 driver. >>> >>> Sounds like we need different protocols for framing within the protocol >> family. >>> Raw in the case of nodes and framed with metadata in the case of >> concentrator >>> cards, thoughts? >> >> Yes, I have thought the roles of node and gateway. They may have >> different skb passing paths. >> As you mentioned, many things of the gateway is controlled by the >> remote server. So, I only implement the path for nodes right now. >> Maybe, we can have a role flag: node, gateway which can be assigned by >> some way. Then, the skb can be decode, checked and passed according >> to the role flag. And module also checks the integrity (MIC, length >> ...) and filter out the bad skb before sends to next stop. > > As IP have IPPROTO_TCP, IPPROTO_UDP, etc maybe we can have > LORA_PROTO_MODULE, LORA_PROTO_GATEWAY which dictates the > pathway and skb format. No, please don't. You were on track with your earlier comment: The user decides what he wants to do by selecting PF_LORAWAN with SOCK_DGRAM/_SEQPACKET vs. SOCK_RAW (or PF_PACKET with ETH_P_LORA[WAN]). The terminology "gateway" has little to do with it. I've heard of packet forwarders using JSON format for communication with their backend, so it appears to highly depend on what exactly the gateway wants to do and how the user wants to access the needed data. Regards, Andreas -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 173C5C43387 for ; Thu, 20 Dec 2018 15:32:01 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DC170218C3 for ; Thu, 20 Dec 2018 15:32:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="tCY1i95J" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC170218C3 Authentication-Results: mail.kernel.org; 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Miller" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org QW0gMjAuMTIuMTggdW0gMTE6MTkgc2NocmllYiBCZW4gV2hpdHRlbjoKPj4+PiBUaGUgaGFyZC1N QUMgaW1wbGVtZW50YXRpb25zIHdpbGwgYmUgb24gbXkgcGxhdGUgbW9zdGx5LCBhcyBib3RoIFNY MTI3Ngo+Pj4+IGFuZCBTWDEzMDEgbmVlZCB0aGUgc29mdC1NQUMuCj4+Pgo+Pj4gT24gdGhlIFNY MTMwMSBzaWRlIG9mIHRoaW5ncywgdGhlIGFiaWxpdHkgdG8gc2VuZCBtZXNzYWdlcyBhcyBhIExv UmFXQU4KPj4+IG5vZGUgZGV2aWNlIGlzIGEgbmljaGUgdXNlIGNhc2UsIHRoZSBtYWpvcml0eSBp ZiBub3QgYWxsIHBlb3BsZSB3aWxsIHVzZSB0aGUKPj4+IGNvbmNlbnRyYXRvciBjYXJkIGFzIHRo ZSBwYXNzIHRocm91Z2ggZ2F0ZXdheSB0byB0aGUgbm9kZS4KPj4+Cj4+PiBJbiB0aGlzIG1vZGUg b2Ygb3BlcmF0aW9uIHRoZSBwYXJhbWV0ZXJzIGZvciB0cmFuc21pc3Npb24gc3VjaCBhczsKPj4g ZnJlcXVlbmN5LAo+Pj4gc3ByZWFkaW5nIGZhY3RvciAvIGRhdGEgcmF0ZSwgcG93ZXIsIGFyZSBn aXZlbiBieSBhIHJlbW90ZSBzZXJ2ZXIgYW5kIHBhc3NlZAo+Pj4gaW4gZnJvbSB0aGUgdXNlcnNw YWNlIGFwcGxpY2F0aW9uIHdoaWNoIHJlY2VpdmVkIGl0Lgo+Pj4gRXZlbnR1YWxseSBpbiB0aGUg a2VybmVsIHRoZXNlIG5lZWQgdG8gYmUgY2hlY2tlZCBsb2NhbGx5IHRvIGVuc3VyZQo+PiByZWd1 bGF0b3J5Cj4+PiBjb21wbGlhbmNlLgo+Pj4gVG8gdGhhdCBlbmQgSSBoYXZlIGV4cGVyaW1lbnRl ZCB3aXRoIGZyYW1pbmcsIGFzIENBTiBkb2VzLCBzbyB0aGF0IHRoaXMKPj4+IG1ldGFkYXRhIGNh biBiZSBwcm92aWRlZCBvbiBhIHdyaXRlIGZyb20gdXNlcnNwYWNlIHRvIHRoZSBTWDEzMDEgZHJp dmVyLgo+Pj4KPj4+IFNvdW5kcyBsaWtlIHdlIG5lZWQgZGlmZmVyZW50IHByb3RvY29scyBmb3Ig ZnJhbWluZyB3aXRoaW4gdGhlIHByb3RvY29sCj4+IGZhbWlseS4KPj4+IFJhdyBpbiB0aGUgY2Fz ZSBvZiBub2RlcyBhbmQgZnJhbWVkIHdpdGggbWV0YWRhdGEgaW4gdGhlIGNhc2Ugb2YKPj4gY29u Y2VudHJhdG9yCj4+PiBjYXJkcywgdGhvdWdodHM/Cj4+Cj4+IFllcywgSSBoYXZlIHRob3VnaHQg dGhlIHJvbGVzIG9mIG5vZGUgYW5kIGdhdGV3YXkuICBUaGV5IG1heSBoYXZlCj4+IGRpZmZlcmVu dCBza2IgcGFzc2luZyBwYXRocy4KPj4gQXMgeW91IG1lbnRpb25lZCwgbWFueSB0aGluZ3Mgb2Yg dGhlIGdhdGV3YXkgaXMgY29udHJvbGxlZCBieSB0aGUKPj4gcmVtb3RlIHNlcnZlci4gIFNvLCBJ IG9ubHkgaW1wbGVtZW50IHRoZSBwYXRoIGZvciBub2RlcyByaWdodCBub3cuCj4+IE1heWJlLCB3 ZSBjYW4gaGF2ZSBhIHJvbGUgZmxhZzogbm9kZSwgZ2F0ZXdheSB3aGljaCBjYW4gYmUgYXNzaWdu ZWQgYnkKPj4gc29tZSB3YXkuICBUaGVuLCB0aGUgc2tiIGNhbiBiZSBkZWNvZGUsIGNoZWNrZWQg YW5kIHBhc3NlZCBhY2NvcmRpbmcKPj4gdG8gdGhlIHJvbGUgZmxhZy4gIEFuZCBtb2R1bGUgYWxz byBjaGVja3MgdGhlIGludGVncml0eSAoTUlDLCBsZW5ndGgKPj4gLi4uKSBhbmQgZmlsdGVyIG91 dCB0aGUgYmFkIHNrYiBiZWZvcmUgc2VuZHMgdG8gbmV4dCBzdG9wLgo+IAo+IEFzIElQIGhhdmUg SVBQUk9UT19UQ1AsIElQUFJPVE9fVURQLCBldGMgbWF5YmUgd2UgY2FuIGhhdmUKPiBMT1JBX1BS T1RPX01PRFVMRSwgTE9SQV9QUk9UT19HQVRFV0FZIHdoaWNoIGRpY3RhdGVzIHRoZQo+IHBhdGh3 YXkgYW5kIHNrYiBmb3JtYXQuCgpObywgcGxlYXNlIGRvbid0LiBZb3Ugd2VyZSBvbiB0cmFjayB3 aXRoIHlvdXIgZWFybGllciBjb21tZW50OiBUaGUgdXNlcgpkZWNpZGVzIHdoYXQgaGUgd2FudHMg dG8gZG8gYnkgc2VsZWN0aW5nIFBGX0xPUkFXQU4gd2l0aApTT0NLX0RHUkFNL19TRVFQQUNLRVQg dnMuIFNPQ0tfUkFXIChvciBQRl9QQUNLRVQgd2l0aCBFVEhfUF9MT1JBW1dBTl0pLgoKVGhlIHRl cm1pbm9sb2d5ICJnYXRld2F5IiBoYXMgbGl0dGxlIHRvIGRvIHdpdGggaXQuIEkndmUgaGVhcmQg b2YgcGFja2V0CmZvcndhcmRlcnMgdXNpbmcgSlNPTiBmb3JtYXQgZm9yIGNvbW11bmljYXRpb24g d2l0aCB0aGVpciBiYWNrZW5kLCBzbyBpdAphcHBlYXJzIHRvIGhpZ2hseSBkZXBlbmQgb24gd2hh dCBleGFjdGx5IHRoZSBnYXRld2F5IHdhbnRzIHRvIGRvIGFuZCBob3cKdGhlIHVzZXIgd2FudHMg dG8gYWNjZXNzIHRoZSBuZWVkZWQgZGF0YS4KClJlZ2FyZHMsCkFuZHJlYXMKCi0tIApTVVNFIExp bnV4IEdtYkgsIE1heGZlbGRzdHIuIDUsIDkwNDA5IE7DvHJuYmVyZywgR2VybWFueQpHRjogRmVs aXggSW1lbmTDtnJmZmVyLCBKYW5lIFNtaXRoYXJkLCBHcmFoYW0gTm9ydG9uCkhSQiAyMTI4NCAo QUcgTsO8cm5iZXJnKQoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0 cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGlu Zm8vbGludXgtYXJtLWtlcm5lbAo=