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422 lines
14 KiB
422 lines
14 KiB
/*
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* lws-minimal-secure-streams
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*
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* Written in 2010-2020 by Andy Green <andy@warmcat.com>
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*
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* This file is made available under the Creative Commons CC0 1.0
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* Universal Public Domain Dedication.
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*
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*
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* This demonstrates a minimal http client using secure streams api.
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*
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* It visits https://warmcat.com/ and receives the html page there.
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*
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* This example is built two different ways from the same source... one includes
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* the policy everything needed to fulfil the stream directly. The other -client
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* variant has no policy itself and some other minor init changes, and connects
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* to the -proxy example to actually get the connection done.
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*
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* In the -client build case, the example does not even init the tls libraries
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* since the proxy part will take care of all that.
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*/
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#include <libwebsockets.h>
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#include <string.h>
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#include <signal.h>
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/*
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* uncomment to force network traffic through 127.0.0.1:1080
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*
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* On your local machine, you can run a SOCKS5 proxy like this
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*
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* $ ssh -N -D 0.0.0.0:1080 localhost -v
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*
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* If enabled, this also fetches a remote policy that also
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* specifies that all traffic should go through the remote
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* proxy.
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*/
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// #define VIA_LOCALHOST_SOCKS
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static int interrupted, bad = 1;
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static lws_state_notify_link_t nl;
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/*
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* If the -proxy app is fulfilling our connection, then we don't need to have
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* the policy in the client.
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*
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* When we build with LWS_SS_USE_SSPC, the apis hook up to a proxy process over
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* a Unix Domain Socket. To test that, you need to separately run the
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* ./lws-minimal-secure-streams-proxy test app on the same machine.
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*/
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#if !defined(LWS_SS_USE_SSPC)
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static const char * const default_ss_policy =
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"{"
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"\"release\":" "\"01234567\","
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"\"product\":" "\"myproduct\","
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"\"schema-version\":" "1,"
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#if defined(VIA_LOCALHOST_SOCKS)
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"\"via-socks5\":" "\"127.0.0.1:1080\","
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#endif
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"\"retry\": [" /* named backoff / retry strategies */
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"{\"default\": {"
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"\"backoff\": [" "1000,"
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"2000,"
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"3000,"
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"5000,"
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"10000"
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"],"
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"\"conceal\":" "5,"
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"\"jitterpc\":" "20,"
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"\"svalidping\":" "30,"
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"\"svalidhup\":" "35"
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"}}"
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"],"
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"\"certs\": [" /* named individual certificates in BASE64 DER */
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/*
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* Let's Encrypt certs for warmcat.com / libwebsockets.org
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*
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* We fetch the real policy from there using SS and switch to
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* using that.
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*/
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"{\"isrg_root_x1\": \"" /* ISRG ROOT X1 */
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"MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw"
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"TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh"
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"cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMTUwNjA0MTEwNDM4"
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"WhcNMzUwNjA0MTEwNDM4WjBPMQswCQYDVQQGEwJVUzEpMCcGA1UEChMgSW50ZXJu"
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"ZXQgU2VjdXJpdHkgUmVzZWFyY2ggR3JvdXAxFTATBgNVBAMTDElTUkcgUm9vdCBY"
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"MTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAK3oJHP0FDfzm54rVygc"
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"h77ct984kIxuPOZXoHj3dcKi/vVqbvYATyjb3miGbESTtrFj/RQSa78f0uoxmyF+"
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"0TM8ukj13Xnfs7j/EvEhmkvBioZxaUpmZmyPfjxwv60pIgbz5MDmgK7iS4+3mX6U"
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"A5/TR5d8mUgjU+g4rk8Kb4Mu0UlXjIB0ttov0DiNewNwIRt18jA8+o+u3dpjq+sW"
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"T8KOEUt+zwvo/7V3LvSye0rgTBIlDHCNAymg4VMk7BPZ7hm/ELNKjD+Jo2FR3qyH"
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"B5T0Y3HsLuJvW5iB4YlcNHlsdu87kGJ55tukmi8mxdAQ4Q7e2RCOFvu396j3x+UC"
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"B5iPNgiV5+I3lg02dZ77DnKxHZu8A/lJBdiB3QW0KtZB6awBdpUKD9jf1b0SHzUv"
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"KBds0pjBqAlkd25HN7rOrFleaJ1/ctaJxQZBKT5ZPt0m9STJEadao0xAH0ahmbWn"
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"OlFuhjuefXKnEgV4We0+UXgVCwOPjdAvBbI+e0ocS3MFEvzG6uBQE3xDk3SzynTn"
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"jh8BCNAw1FtxNrQHusEwMFxIt4I7mKZ9YIqioymCzLq9gwQbooMDQaHWBfEbwrbw"
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"qHyGO0aoSCqI3Haadr8faqU9GY/rOPNk3sgrDQoo//fb4hVC1CLQJ13hef4Y53CI"
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"rU7m2Ys6xt0nUW7/vGT1M0NPAgMBAAGjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNV"
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"HRMBAf8EBTADAQH/MB0GA1UdDgQWBBR5tFnme7bl5AFzgAiIyBpY9umbbjANBgkq"
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"hkiG9w0BAQsFAAOCAgEAVR9YqbyyqFDQDLHYGmkgJykIrGF1XIpu+ILlaS/V9lZL"
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"ubhzEFnTIZd+50xx+7LSYK05qAvqFyFWhfFQDlnrzuBZ6brJFe+GnY+EgPbk6ZGQ"
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"3BebYhtF8GaV0nxvwuo77x/Py9auJ/GpsMiu/X1+mvoiBOv/2X/qkSsisRcOj/KK"
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"NFtY2PwByVS5uCbMiogziUwthDyC3+6WVwW6LLv3xLfHTjuCvjHIInNzktHCgKQ5"
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"ORAzI4JMPJ+GslWYHb4phowim57iaztXOoJwTdwJx4nLCgdNbOhdjsnvzqvHu7Ur"
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"TkXWStAmzOVyyghqpZXjFaH3pO3JLF+l+/+sKAIuvtd7u+Nxe5AW0wdeRlN8NwdC"
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"jNPElpzVmbUq4JUagEiuTDkHzsxHpFKVK7q4+63SM1N95R1NbdWhscdCb+ZAJzVc"
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"oyi3B43njTOQ5yOf+1CceWxG1bQVs5ZufpsMljq4Ui0/1lvh+wjChP4kqKOJ2qxq"
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"4RgqsahDYVvTH9w7jXbyLeiNdd8XM2w9U/t7y0Ff/9yi0GE44Za4rF2LN9d11TPA"
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"mRGunUHBcnWEvgJBQl9nJEiU0Zsnvgc/ubhPgXRR4Xq37Z0j4r7g1SgEEzwxA57d"
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"emyPxgcYxn/eR44/KJ4EBs+lVDR3veyJm+kXQ99b21/+jh5Xos1AnX5iItreGCc="
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"\"},"
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"{\"LEX3_isrg_root_x1\": \"" /* LE X3 signed by ISRG X1 root */
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"MIIFjTCCA3WgAwIBAgIRANOxciY0IzLc9AUoUSrsnGowDQYJKoZIhvcNAQELBQAw"
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"TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh"
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"cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMTYxMDA2MTU0MzU1"
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"WhcNMjExMDA2MTU0MzU1WjBKMQswCQYDVQQGEwJVUzEWMBQGA1UEChMNTGV0J3Mg"
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"RW5jcnlwdDEjMCEGA1UEAxMaTGV0J3MgRW5jcnlwdCBBdXRob3JpdHkgWDMwggEi"
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"MA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCc0wzwWuUuR7dyXTeDs2hjMOrX"
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"NSYZJeG9vjXxcJIvt7hLQQWrqZ41CFjssSrEaIcLo+N15Obzp2JxunmBYB/XkZqf"
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"89B4Z3HIaQ6Vkc/+5pnpYDxIzH7KTXcSJJ1HG1rrueweNwAcnKx7pwXqzkrrvUHl"
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"Npi5y/1tPJZo3yMqQpAMhnRnyH+lmrhSYRQTP2XpgofL2/oOVvaGifOFP5eGr7Dc"
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"Gu9rDZUWfcQroGWymQQ2dYBrrErzG5BJeC+ilk8qICUpBMZ0wNAxzY8xOJUWuqgz"
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"uEPxsR/DMH+ieTETPS02+OP88jNquTkxxa/EjQ0dZBYzqvqEKbbUC8DYfcOTAgMB"
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"AAGjggFnMIIBYzAOBgNVHQ8BAf8EBAMCAYYwEgYDVR0TAQH/BAgwBgEB/wIBADBU"
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"BgNVHSAETTBLMAgGBmeBDAECATA/BgsrBgEEAYLfEwEBATAwMC4GCCsGAQUFBwIB"
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"FiJodHRwOi8vY3BzLnJvb3QteDEubGV0c2VuY3J5cHQub3JnMB0GA1UdDgQWBBSo"
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"SmpjBH3duubRObemRWXv86jsoTAzBgNVHR8ELDAqMCigJqAkhiJodHRwOi8vY3Js"
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"LnJvb3QteDEubGV0c2VuY3J5cHQub3JnMHIGCCsGAQUFBwEBBGYwZDAwBggrBgEF"
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"BQcwAYYkaHR0cDovL29jc3Aucm9vdC14MS5sZXRzZW5jcnlwdC5vcmcvMDAGCCsG"
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"AQUFBzAChiRodHRwOi8vY2VydC5yb290LXgxLmxldHNlbmNyeXB0Lm9yZy8wHwYD"
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"VR0jBBgwFoAUebRZ5nu25eQBc4AIiMgaWPbpm24wDQYJKoZIhvcNAQELBQADggIB"
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"ABnPdSA0LTqmRf/Q1eaM2jLonG4bQdEnqOJQ8nCqxOeTRrToEKtwT++36gTSlBGx"
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"A/5dut82jJQ2jxN8RI8L9QFXrWi4xXnA2EqA10yjHiR6H9cj6MFiOnb5In1eWsRM"
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"UM2v3e9tNsCAgBukPHAg1lQh07rvFKm/Bz9BCjaxorALINUfZ9DD64j2igLIxle2"
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"DPxW8dI/F2loHMjXZjqG8RkqZUdoxtID5+90FgsGIfkMpqgRS05f4zPbCEHqCXl1"
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"eO5HyELTgcVlLXXQDgAWnRzut1hFJeczY1tjQQno6f6s+nMydLN26WuU4s3UYvOu"
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"OsUxRlJu7TSRHqDC3lSE5XggVkzdaPkuKGQbGpny+01/47hfXXNB7HntWNZ6N2Vw"
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"p7G6OfY+YQrZwIaQmhrIqJZuigsrbe3W+gdn5ykE9+Ky0VgVUsfxo52mwFYs1JKY"
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"2PGDuWx8M6DlS6qQkvHaRUo0FMd8TsSlbF0/v965qGFKhSDeQoMpYnwcmQilRh/0"
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"ayLThlHLN81gSkJjVrPI0Y8xCVPB4twb1PFUd2fPM3sA1tJ83sZ5v8vgFv2yofKR"
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"PB0t6JzUA81mSqM3kxl5e+IZwhYAyO0OTg3/fs8HqGTNKd9BqoUwSRBzp06JMg5b"
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"rUCGwbCUDI0mxadJ3Bz4WxR6fyNpBK2yAinWEsikxqEt"
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"\"}"
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"],"
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"\"trust_stores\": [" /* named cert chains */
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"{"
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"\"name\": \"le_via_isrg\","
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"\"stack\": ["
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"\"isrg_root_x1\","
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"\"LEX3_isrg_root_x1\""
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"]"
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"}"
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"],"
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"\"s\": ["
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"{\"fetch_policy\": {"
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"\"endpoint\":" "\"warmcat.com\","
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"\"port\":" "443,"
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"\"protocol\":" "\"h1\","
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"\"http_method\":" "\"GET\","
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#if defined(VIA_LOCALHOST_SOCKS)
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"\"http_url\":" "\"policy/minimal-proxy-socks.json\","
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#else
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"\"http_url\":" "\"policy/minimal-proxy.json\","
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#endif
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"\"tls\":" "true,"
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"\"opportunistic\":" "true,"
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"\"retry\":" "\"default\","
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"\"tls_trust_store\":" "\"le_via_isrg\""
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"}}"
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"}"
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;
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#endif
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typedef struct myss {
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struct lws_ss_handle *ss;
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void *opaque_data;
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/* ... application specific state ... */
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lws_sorted_usec_list_t sul;
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} myss_t;
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static const char *canned_root_token_payload =
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"grant_type=refresh_token"
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"&refresh_token=Atzr|IwEBIJedGXjDqsU_vMxykqOMg"
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"SHfYe3CPcedueWEMWSDMaDnEmiW8RlR1Kns7Cb4B-TOSnqp7ifVsY4BMY2B8tpHfO39XP"
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"zfu9HapGjTR458IyHX44FE71pWJkGZ79uVBpljP4sazJuk8XS3Oe_yLnm_DIO6fU1nU3Y"
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"0flYmsOiOAQE_gRk_pdlmEtHnpMA-9rLw3mkY5L89Ty9kUygBsiFaYatouROhbsTn8-jW"
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"k1zZLUDpT6ICtBXSnrCIg0pUbZevPFhTwdXd6eX-u4rq0W-XaDvPWFO7au-iPb4Zk5eZE"
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"iX6sissYrtNmuEXc2uHu7MnQO1hHCaTdIO2CANVumf-PHSD8xseamyh04sLV5JgFzY45S"
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"KvKMajiUZuLkMokOx86rjC2Hdkx5DO7G-dbG1ufBDG-N79pFMSs7Ck5pc283IdLoJkCQc"
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"AGvTX8o8I29QqkcGou-9TKhOJmpX8As94T61ok0UqqEKPJ7RhfQHHYdCtsdwxgvfVr9qI"
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"xL_hDCcTho8opCVX-6QhJHl6SQFlTw13"
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"&client_id="
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"amzn1.application-oa2-client.4823334c434b4190a2b5a42c07938a2d";
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/* secure streams payload interface */
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static int
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myss_rx(void *userobj, const uint8_t *buf, size_t len, int flags)
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{
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// myss_t *m = (myss_t *)userobj;
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lwsl_user("%s: len %d, flags: %d\n", __func__, (int)len, flags);
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lwsl_hexdump_info(buf, len);
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/*
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* If we received the whole message, for our example it means
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* we are done.
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*/
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if (flags & LWSSS_FLAG_EOM) {
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bad = 0;
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interrupted = 1;
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}
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return 0;
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}
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static int
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myss_tx(void *userobj, lws_ss_tx_ordinal_t ord, uint8_t *buf, size_t *len,
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int *flags)
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{
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//myss_t *m = (myss_t *)userobj;
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return 0;
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}
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static int
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myss_state(void *userobj, void *sh, lws_ss_constate_t state,
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lws_ss_tx_ordinal_t ack)
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{
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myss_t *m = (myss_t *)userobj;
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lwsl_user("%s: %s, ord 0x%x\n", __func__, lws_ss_state_name(state),
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(unsigned int)ack);
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switch (state) {
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case LWSSSCS_CREATING:
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lws_ss_set_metadata(m->ss, "uptag", "myuptag123", 10);
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lws_ss_set_metadata(m->ss, "ctype", "myctype", 7);
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lws_ss_client_connect(m->ss);
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break;
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case LWSSSCS_ALL_RETRIES_FAILED:
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/* if we're out of retries, we want to close the app and FAIL */
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interrupted = 1;
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break;
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case LWSSSCS_QOS_ACK_REMOTE:
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lwsl_notice("%s: LWSSSCS_QOS_ACK_REMOTE\n", __func__);
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break;
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default:
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break;
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}
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return 0;
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}
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static int
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app_system_state_nf(lws_state_manager_t *mgr, lws_state_notify_link_t *link,
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int current, int target)
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{
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struct lws_context *context = lws_system_context_from_system_mgr(mgr);
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lws_system_blob_t *ab = lws_system_get_blob(context,
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LWS_SYSBLOB_TYPE_AUTH, 1 /* AUTH_IDX_ROOT */);
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size_t size;
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/*
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* For the things we care about, let's notice if we are trying to get
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* past them when we haven't solved them yet, and make the system
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* state wait while we trigger the dependent action.
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*/
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switch (target) {
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case LWS_SYSTATE_REGISTERED:
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size = lws_system_blob_get_size(ab);
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if (size)
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break;
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/* let's register our canned root token so auth can use it */
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lws_system_blob_direct_set(ab,
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(const uint8_t *)canned_root_token_payload,
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strlen(canned_root_token_payload));
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break;
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case LWS_SYSTATE_OPERATIONAL:
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if (current == LWS_SYSTATE_OPERATIONAL) {
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lws_ss_info_t ssi;
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/* We're making an outgoing secure stream ourselves */
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memset(&ssi, 0, sizeof(ssi));
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ssi.handle_offset = offsetof(myss_t, ss);
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ssi.opaque_user_data_offset = offsetof(myss_t,
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opaque_data);
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ssi.rx = myss_rx;
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ssi.tx = myss_tx;
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ssi.state = myss_state;
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ssi.user_alloc = sizeof(myss_t);
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ssi.streamtype = "mintest";
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if (lws_ss_create(context, 0, &ssi, NULL, NULL,
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NULL, NULL)) {
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lwsl_err("%s: failed to create secure stream\n",
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__func__);
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return -1;
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}
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}
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break;
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}
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return 0;
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}
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static lws_state_notify_link_t * const app_notifier_list[] = {
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&nl, NULL
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};
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static void
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sigint_handler(int sig)
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{
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interrupted = 1;
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}
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int main(int argc, const char **argv)
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{
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struct lws_context_creation_info info;
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struct lws_context *context;
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int n = 0;
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signal(SIGINT, sigint_handler);
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memset(&info, 0, sizeof info);
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lws_cmdline_option_handle_builtin(argc, argv, &info);
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lwsl_user("LWS secure streams test client [-d<verb>]\n");
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info.fd_limit_per_thread = 1 + 6 + 1;
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info.port = CONTEXT_PORT_NO_LISTEN;
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#if defined(LWS_SS_USE_SSPC)
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info.protocols = lws_sspc_protocols;
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{
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const char *p;
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|
|
|
/* connect to ssproxy via UDS by default, else via
|
|
* tcp connection to this port */
|
|
if ((p = lws_cmdline_option(argc, argv, "-p")))
|
|
info.ss_proxy_port = atoi(p);
|
|
|
|
/* UDS "proxy.ss.lws" in abstract namespace, else this socket
|
|
* path; when -p given this can specify the network interface
|
|
* to bind to */
|
|
if ((p = lws_cmdline_option(argc, argv, "-i")))
|
|
info.ss_proxy_bind = p;
|
|
|
|
/* if -p given, -a specifies the proxy address to connect to */
|
|
if ((p = lws_cmdline_option(argc, argv, "-a")))
|
|
info.ss_proxy_address = p;
|
|
}
|
|
#else
|
|
info.pss_policies_json = default_ss_policy;
|
|
info.options = LWS_SERVER_OPTION_EXPLICIT_VHOSTS |
|
|
LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
|
|
#endif
|
|
#if defined(LWS_WITH_DETAILED_LATENCY)
|
|
info.detailed_latency_cb = lws_det_lat_plot_cb;
|
|
info.detailed_latency_filepath = "/tmp/lws-latency-ssproxy";
|
|
#endif
|
|
|
|
/* integrate us with lws system state management when context created */
|
|
|
|
nl.name = "app";
|
|
nl.notify_cb = app_system_state_nf;
|
|
info.register_notifier_list = app_notifier_list;
|
|
|
|
/* create the context */
|
|
|
|
context = lws_create_context(&info);
|
|
if (!context) {
|
|
lwsl_err("lws init failed\n");
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Set the related lws_system blobs
|
|
*
|
|
* ...direct_set() sets a pointer, so the thing pointed to has to have
|
|
* a suitable lifetime, eg, something that already exists on the heap or
|
|
* a const string in .rodata like this
|
|
*/
|
|
|
|
lws_system_blob_direct_set(lws_system_get_blob(context,
|
|
LWS_SYSBLOB_TYPE_DEVICE_SERIAL, 0),
|
|
(const uint8_t *)"SN12345678", 10);
|
|
lws_system_blob_direct_set(lws_system_get_blob(context,
|
|
LWS_SYSBLOB_TYPE_DEVICE_FW_VERSION, 0),
|
|
(const uint8_t *)"v0.01", 5);
|
|
|
|
/*
|
|
* ..._heap_append() appends to a buflist kind of arrangement on heap,
|
|
* just one block is fine, otherwise it will concatenate the fragments
|
|
* in the order they were appended (and take care of freeing them at
|
|
* context destroy time). ..._heap_empty() is also available to remove
|
|
* everything that was already allocated.
|
|
*
|
|
* Here we use _heap_append() just so it's tested as well as direct set.
|
|
*/
|
|
|
|
lws_system_blob_heap_append(lws_system_get_blob(context,
|
|
LWS_SYSBLOB_TYPE_DEVICE_TYPE, 0),
|
|
(const uint8_t *)"spacerocket", 11);
|
|
|
|
/* the event loop */
|
|
|
|
while (n >= 0 && !interrupted)
|
|
n = lws_service(context, 0);
|
|
|
|
lws_context_destroy(context);
|
|
|
|
lwsl_user("Completed: %s\n", bad ? "failed" : "OK");
|
|
|
|
return bad;
|
|
}
|