Elia Pinto <[email protected]> writes:
> Teach git about a new option, "http.sslVersion", which permits one to
> specify the SSL version to use when negotiating SSL connections. The
> setting can be overridden by the GIT_SSL_VERSION environment
> variable.
>
> Signed-off-by: Elia Pinto <[email protected]>
> ---
> This is the fifth version of the patch. Changes from the previous version:
>
> - Minor style changes (Eric)
Thanks.
I'd probably credit Eric with Helped-by: there if I were you ;-)
> diff --git a/http.c b/http.c
> index e9c6fdd..4c5a2e0 100644
> --- a/http.c
> +++ b/http.c
> @@ -37,6 +37,20 @@ static int curl_ssl_verify = -1;
> static int curl_ssl_try;
> static const char *ssl_cert;
> static const char *ssl_cipherlist;
> +static const char *ssl_version;
> +static struct {
> + const char *name;
> + long ssl_version;
> + } sslversions[] = {
> + { "sslv2", CURL_SSLVERSION_SSLv2 },
> + { "sslv3", CURL_SSLVERSION_TLSv1 },
> + { "tlsv1", CURL_SSLVERSION_TLSv1 },
> +#if LIBCURL_VERSION_NUM >= 0x072200
> + { "tlsv1.0", CURL_SSLVERSION_TLSv1_0 },
> + { "tlsv1.1", CURL_SSLVERSION_TLSv1_1 },
> + { "tlsv1.2", CURL_SSLVERSION_TLSv1_2 }
> +#endif
> +};
The indentation of the above is somewhat screwed up. Also even
though it is clear that you accept a comma after the last item in an
array initialization (i.e. when compiled for an older libCurl, the
last entry in the array is for tlsv1 which ends with a comma), for
newer libCurl, the last entry does not end with a comma, which is
(1) inconsistent, and (2) makes it harder to add more entries at the
end of the array in the future.
Here is with a slight edit that I'll queue for now.
Thanks.
-- >8 --
From: Elia Pinto <[email protected]>
Date: Fri, 14 Aug 2015 21:37:43 +0200
Subject: [PATCH] http: add support for specifying the SSL version
Teach git about a new option, "http.sslVersion", which permits one
to specify the SSL version to use when negotiating SSL connections.
The setting can be overridden by the GIT_SSL_VERSION environment
variable.
Signed-off-by: Elia Pinto <[email protected]>
Helped-by: Eric Sunshine <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>
---
Documentation/config.txt | 23 +++++++++++++++++++++++
contrib/completion/git-completion.bash | 1 +
http.c | 33 ++++++++++++++++++++++++++++++++-
3 files changed, 56 insertions(+), 1 deletion(-)
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 43bb53c..8d334c5 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1576,6 +1576,29 @@ http.saveCookies::
If set, store cookies received during requests to the file specified by
http.cookieFile. Has no effect if http.cookieFile is unset.
+http.sslVersion::
+ The SSL version to use when negotiating an SSL connection, if you
+ want to force the default. The available and default version
+ depend on whether libcurl was built against NSS or OpenSSL and the
+ particular configuration of the crypto library in use. Internally
+ this sets the 'CURLOPT_SSL_VERSION' option; see the libcurl
+ documentation for more details on the format of this option and
+ for the ssl version supported. Actually the possible values of
+ this option are:
+
+ - sslv2
+ - sslv3
+ - tlsv1
+ - tlsv1.0
+ - tlsv1.1
+ - tlsv1.2
+
++
+Can be overridden by the 'GIT_SSL_VERSION' environment variable.
+To force git to use libcurl's default ssl version and ignore any
+explicit http.sslversion option, set 'GIT_SSL_VERSION' to the
+empty string.
+
http.sslCipherList::
A list of SSL ciphers to use when negotiating an SSL connection.
The available ciphers depend on whether libcurl was built against
diff --git a/contrib/completion/git-completion.bash
b/contrib/completion/git-completion.bash
index c97c648..6e9359c 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -2118,6 +2118,7 @@ _git_config ()
http.postBuffer
http.proxy
http.sslCipherList
+ http.sslVersion
http.sslCAInfo
http.sslCAPath
http.sslCert
diff --git a/http.c b/http.c
index e9c6fdd..ba3cc0e 100644
--- a/http.c
+++ b/http.c
@@ -37,6 +37,20 @@ static int curl_ssl_verify = -1;
static int curl_ssl_try;
static const char *ssl_cert;
static const char *ssl_cipherlist;
+static const char *ssl_version;
+static struct {
+ const char *name;
+ long ssl_version;
+} sslversions[] = {
+ { "sslv2", CURL_SSLVERSION_SSLv2 },
+ { "sslv3", CURL_SSLVERSION_TLSv1 },
+ { "tlsv1", CURL_SSLVERSION_TLSv1 },
+#if LIBCURL_VERSION_NUM >= 0x072200
+ { "tlsv1.0", CURL_SSLVERSION_TLSv1_0 },
+ { "tlsv1.1", CURL_SSLVERSION_TLSv1_1 },
+ { "tlsv1.2", CURL_SSLVERSION_TLSv1_2 },
+#endif
+};
#if LIBCURL_VERSION_NUM >= 0x070903
static const char *ssl_key;
#endif
@@ -190,6 +204,8 @@ static int http_options(const char *var, const char *value,
void *cb)
}
if (!strcmp("http.sslcipherlist", var))
return git_config_string(&ssl_cipherlist, var, value);
+ if (!strcmp("http.sslversion", var))
+ return git_config_string(&ssl_version, var, value);
if (!strcmp("http.sslcert", var))
return git_config_string(&ssl_cert, var, value);
#if LIBCURL_VERSION_NUM >= 0x070903
@@ -364,9 +380,24 @@ static CURL *get_curl_handle(void)
if (http_proactive_auth)
init_curl_http_auth(result);
+ if (getenv("GIT_SSL_VERSION"))
+ ssl_version = getenv("GIT_SSL_VERSION");
+ if (ssl_version && *ssl_version) {
+ int i;
+ for (i = 0; i < ARRAY_SIZE(sslversions); i++) {
+ if (!strcmp(ssl_version, sslversions[i].name)) {
+ curl_easy_setopt(result, CURLOPT_SSLVERSION,
+ sslversions[i].ssl_version);
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(sslversions))
+ warning("unsupported ssl version %s: using default",
+ ssl_version);
+ }
+
if (getenv("GIT_SSL_CIPHER_LIST"))
ssl_cipherlist = getenv("GIT_SSL_CIPHER_LIST");
-
if (ssl_cipherlist != NULL && *ssl_cipherlist)
curl_easy_setopt(result, CURLOPT_SSL_CIPHER_LIST,
ssl_cipherlist);
--
2.5.0-487-g2edca40
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