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Blame SOURCES/kvm-curl-Allow-a-cookie-or-cookies-to-be-sent-with-http-.patch

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From 1eeb050a2cc6c582c390614080fbeaea019b2dac Mon Sep 17 00:00:00 2001
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From: Richard Jones <rjones@redhat.com>
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Date: Thu, 11 Jun 2015 11:40:26 +0200
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Subject: [PATCH 26/30] curl: Allow a cookie or cookies to be sent with
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 http/https requests.
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Message-id: <1434022828-13037-20-git-send-email-rjones@redhat.com>
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Patchwork-id: 65854
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O-Subject: [RHEL-7.2 qemu-kvm v3 PATCH 19/21] curl: Allow a cookie or cookies to be sent with http/https requests.
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Bugzilla: 1226684
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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From: "Richard W.M. Jones" <rjones@redhat.com>
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In order to access VMware ESX efficiently, we need to send a session
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cookie.  This patch is very simple and just allows you to send that
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session cookie.  It punts on the question of how you get the session
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cookie in the first place, but in practice you can just run a `curl'
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command against the server and extract the cookie that way.
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To use it, add file.cookie to the curl URL.  For example:
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$ qemu-img info 'json: {
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    "file.driver":"https",
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    "file.url":"https://vcenter/folder/Windows%202003/Windows%202003-flat.vmdk?dcPath=Datacenter&dsName=datastore1",
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    "file.sslverify":"off",
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    "file.cookie":"vmware_soap_session=\"52a01262-bf93-ccce-d379-8dabb3e55560\""}'
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image: [...]
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file format: raw
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virtual size: 8.0G (8589934592 bytes)
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disk size: unavailable
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Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Upstream-status: a94f83d94fdf907680f068f1be7ad13d1f697067
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Note this intentionally omits the documentation changes in
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'qemu-options.hx' from the upstream patch.
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 block/curl.c | 16 ++++++++++++++++
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 1 file changed, 16 insertions(+)
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diff --git a/block/curl.c b/block/curl.c
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index 1f1df4f..ca881ee 100644
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--- a/block/curl.c
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+++ b/block/curl.c
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@@ -73,6 +73,7 @@ static CURLMcode __curl_multi_socket_action(CURLM *multi_handle,
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 #define CURL_BLOCK_OPT_READAHEAD "readahead"
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 #define CURL_BLOCK_OPT_SSLVERIFY "sslverify"
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 #define CURL_BLOCK_OPT_TIMEOUT "timeout"
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+#define CURL_BLOCK_OPT_COOKIE    "cookie"
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 struct BDRVCURLState;
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@@ -112,6 +113,7 @@ typedef struct BDRVCURLState {
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     size_t readahead_size;
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     bool sslverify;
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     int timeout;
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+    char *cookie;
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     bool accept_range;
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 } BDRVCURLState;
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@@ -382,6 +384,9 @@ static CURLState *curl_init_state(BDRVCURLState *s)
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         curl_easy_setopt(state->curl, CURLOPT_URL, s->url);
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         curl_easy_setopt(state->curl, CURLOPT_SSL_VERIFYPEER,
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                          (long) s->sslverify);
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+        if (s->cookie) {
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+            curl_easy_setopt(state->curl, CURLOPT_COOKIE, s->cookie);
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+        }
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         curl_easy_setopt(state->curl, CURLOPT_TIMEOUT, s->timeout);
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         curl_easy_setopt(state->curl, CURLOPT_WRITEFUNCTION,
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                          (void *)curl_read_cb);
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@@ -451,6 +456,11 @@ static QemuOptsList runtime_opts = {
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             .type = QEMU_OPT_NUMBER,
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             .help = "Curl timeout"
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         },
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+        {
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+            .name = CURL_BLOCK_OPT_COOKIE,
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+            .type = QEMU_OPT_STRING,
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+            .help = "Pass the cookie or list of cookies with each request"
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+        },
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         { /* end of list */ }
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     },
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 };
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@@ -463,6 +473,7 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags,
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     QemuOpts *opts;
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     Error *local_err = NULL;
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     const char *file;
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+    const char *cookie;
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     double d;
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     static int inited = 0;
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@@ -488,6 +499,9 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags,
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     s->sslverify = qemu_opt_get_bool(opts, CURL_BLOCK_OPT_SSLVERIFY, true);
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+    cookie = qemu_opt_get(opts, CURL_BLOCK_OPT_COOKIE);
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+    s->cookie = g_strdup(cookie);
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+
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     file = qemu_opt_get(opts, CURL_BLOCK_OPT_URL);
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     if (file == NULL) {
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         qerror_report(ERROR_CLASS_GENERIC_ERROR, "curl block driver requires "
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@@ -556,6 +570,7 @@ out:
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     curl_easy_cleanup(state->curl);
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     state->curl = NULL;
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 out_noclean:
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+    g_free(s->cookie);
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     g_free(s->url);
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     qemu_opts_del(opts);
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     return -EINVAL;
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@@ -696,6 +711,7 @@ static void curl_close(BlockDriverState *bs)
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     qemu_del_timer(s->timer);
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     qemu_free_timer(s->timer);
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+    g_free(s->cookie);
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     g_free(s->url);
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 }
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-- 
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1.8.3.1
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