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authorJunio C Hamano <gitster@pobox.com>2016-02-24 13:25:54 -0800
committerJunio C Hamano <gitster@pobox.com>2016-02-24 13:25:54 -0800
commite84d5e9fa178a027b1c8b9f6e22c9173dcda03b3 (patch)
treeb3d16c3076cb8bce048c54e331e86f56e0c0533b
parent8020803f5057601c1c29ffcdbd309905bd26eef7 (diff)
parentc915f11eb4922e154e29cf62d3b549d65c06a170 (diff)
downloadgit-e84d5e9fa178a027b1c8b9f6e22c9173dcda03b3.tar.gz
Merge branch 'ew/force-ipv4'
"git fetch" and friends that make network connections can now be told to only use ipv4 (or ipv6). * ew/force-ipv4: connect & http: support -4 and -6 switches for remote operations
-rw-r--r--Documentation/fetch-options.txt8
-rw-r--r--Documentation/git-push.txt7
-rw-r--r--builtin/clone.c6
-rw-r--r--builtin/fetch.c6
-rw-r--r--builtin/push.c6
-rw-r--r--connect.c8
-rw-r--r--connect.h2
-rw-r--r--http.c9
-rw-r--r--http.h1
-rw-r--r--remote-curl.c13
-rw-r--r--transport-helper.c15
-rw-r--r--transport.c6
-rw-r--r--transport.h8
13 files changed, 95 insertions, 0 deletions
diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt
index 952dfdfef0..036edfb099 100644
--- a/Documentation/fetch-options.txt
+++ b/Documentation/fetch-options.txt
@@ -158,3 +158,11 @@ endif::git-pull[]
by default when it is attached to a terminal, unless -q
is specified. This flag forces progress status even if the
standard error stream is not directed to a terminal.
+
+-4::
+--ipv4::
+ Use IPv4 addresses only, ignoring IPv6 addresses.
+
+-6::
+--ipv6::
+ Use IPv6 addresses only, ignoring IPv4 addresses.
diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt
index 32482cec42..669a357c81 100644
--- a/Documentation/git-push.txt
+++ b/Documentation/git-push.txt
@@ -277,6 +277,13 @@ origin +master` to force a push to the `master` branch). See the
default is --verify, giving the hook a chance to prevent the
push. With --no-verify, the hook is bypassed completely.
+-4::
+--ipv4::
+ Use IPv4 addresses only, ignoring IPv6 addresses.
+
+-6::
+--ipv6::
+ Use IPv6 addresses only, ignoring IPv4 addresses.
include::urls-remotes.txt[]
diff --git a/builtin/clone.c b/builtin/clone.c
index bcba0805e1..b8c39aa701 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -47,6 +47,7 @@ static const char *real_git_dir;
static char *option_upload_pack = "git-upload-pack";
static int option_verbosity;
static int option_progress = -1;
+static enum transport_family family;
static struct string_list option_config;
static struct string_list option_reference;
static int option_dissociate;
@@ -92,6 +93,10 @@ static struct option builtin_clone_options[] = {
N_("separate git dir from working tree")),
OPT_STRING_LIST('c', "config", &option_config, N_("key=value"),
N_("set config inside the new repository")),
+ OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"),
+ TRANSPORT_FAMILY_IPV4),
+ OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
+ TRANSPORT_FAMILY_IPV6),
OPT_END()
};
@@ -970,6 +975,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
remote = remote_get(option_origin);
transport = transport_get(remote, remote->url[0]);
transport_set_verbosity(transport, option_verbosity, option_progress);
+ transport->family = family;
path = get_repo_path(remote->url[0], &is_bundle);
is_local = option_local != 0 && path && !is_bundle;
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 8e742135f0..55919a9e4f 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -38,6 +38,7 @@ static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosit
static int progress = -1, recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
static int tags = TAGS_DEFAULT, unshallow, update_shallow;
static int max_children = 1;
+static enum transport_family family;
static const char *depth;
static const char *upload_pack;
static struct strbuf default_rla = STRBUF_INIT;
@@ -127,6 +128,10 @@ static struct option builtin_fetch_options[] = {
N_("accept refs that update .git/shallow")),
{ OPTION_CALLBACK, 0, "refmap", NULL, N_("refmap"),
N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg },
+ OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"),
+ TRANSPORT_FAMILY_IPV4),
+ OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
+ TRANSPORT_FAMILY_IPV6),
OPT_END()
};
@@ -864,6 +869,7 @@ static struct transport *prepare_transport(struct remote *remote)
struct transport *transport;
transport = transport_get(remote, NULL);
transport_set_verbosity(transport, verbosity, progress);
+ transport->family = family;
if (upload_pack)
set_option(transport, TRANS_OPT_UPLOADPACK, upload_pack);
if (keep)
diff --git a/builtin/push.c b/builtin/push.c
index 960ffc31e1..6e13b3c90a 100644
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -23,6 +23,7 @@ static const char *receivepack;
static int verbosity;
static int progress = -1;
static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
+static enum transport_family family;
static struct push_cas_option cas;
@@ -346,6 +347,7 @@ static int push_with_options(struct transport *transport, int flags)
unsigned int reject_reasons;
transport_set_verbosity(transport, verbosity, progress);
+ transport->family = family;
if (receivepack)
transport_set_option(transport,
@@ -565,6 +567,10 @@ int cmd_push(int argc, const char **argv, const char *prefix)
0, "signed", &push_cert, "yes|no|if-asked", N_("GPG sign the push"),
PARSE_OPT_OPTARG, option_parse_push_signed },
OPT_BIT(0, "atomic", &flags, N_("request atomic transaction on remote side"), TRANSPORT_PUSH_ATOMIC),
+ OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"),
+ TRANSPORT_FAMILY_IPV4),
+ OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
+ TRANSPORT_FAMILY_IPV6),
OPT_END()
};
diff --git a/connect.c b/connect.c
index fd7ffe1840..047863144f 100644
--- a/connect.c
+++ b/connect.c
@@ -357,6 +357,10 @@ static int git_tcp_connect_sock(char *host, int flags)
port = "<none>";
memset(&hints, 0, sizeof(hints));
+ if (flags & CONNECT_IPV4)
+ hints.ai_family = AF_INET;
+ else if (flags & CONNECT_IPV6)
+ hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
@@ -783,6 +787,10 @@ struct child_process *git_connect(int fd[2], const char *url,
}
argv_array_push(&conn->args, ssh);
+ if (flags & CONNECT_IPV4)
+ argv_array_push(&conn->args, "-4");
+ else if (flags & CONNECT_IPV6)
+ argv_array_push(&conn->args, "-6");
if (tortoiseplink)
argv_array_push(&conn->args, "-batch");
if (port) {
diff --git a/connect.h b/connect.h
index c41a6850f1..01f14cdf3f 100644
--- a/connect.h
+++ b/connect.h
@@ -3,6 +3,8 @@
#define CONNECT_VERBOSE (1u << 0)
#define CONNECT_DIAG_URL (1u << 1)
+#define CONNECT_IPV4 (1u << 2)
+#define CONNECT_IPV6 (1u << 3)
extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags);
extern int finish_connect(struct child_process *conn);
extern int git_connection_is_socket(struct child_process *conn);
diff --git a/http.c b/http.c
index dfc53c1e25..f543b14278 100644
--- a/http.c
+++ b/http.c
@@ -11,6 +11,11 @@
#include "gettext.h"
#include "transport.h"
+#if LIBCURL_VERSION_NUM >= 0x070a08
+long int git_curl_ipresolve = CURL_IPRESOLVE_WHATEVER;
+#else
+long int git_curl_ipresolve;
+#endif
int active_requests;
int http_is_verbose;
size_t http_post_buffer = 16 * LARGE_PACKET_MAX;
@@ -824,6 +829,10 @@ struct active_request_slot *get_active_slot(void)
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1);
curl_easy_setopt(slot->curl, CURLOPT_RANGE, NULL);
+
+#if LIBCURL_VERSION_NUM >= 0x070a08
+ curl_easy_setopt(slot->curl, CURLOPT_IPRESOLVE, git_curl_ipresolve);
+#endif
#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
curl_easy_setopt(slot->curl, CURLOPT_HTTPAUTH, http_auth_methods);
#endif
diff --git a/http.h b/http.h
index f83cfa6868..4ef4bbda7d 100644
--- a/http.h
+++ b/http.h
@@ -107,6 +107,7 @@ extern void http_init(struct remote *remote, const char *url,
int proactive_auth);
extern void http_cleanup(void);
+extern long int git_curl_ipresolve;
extern int active_requests;
extern int http_is_verbose;
extern size_t http_post_buffer;
diff --git a/remote-curl.c b/remote-curl.c
index c7048575fb..b33a1e4235 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -119,6 +119,19 @@ static int set_option(const char *name, const char *value)
else
return -1;
return 0;
+
+#if LIBCURL_VERSION_NUM >= 0x070a08
+ } else if (!strcmp(name, "family")) {
+ if (!strcmp(value, "ipv4"))
+ git_curl_ipresolve = CURL_IPRESOLVE_V4;
+ else if (!strcmp(value, "ipv6"))
+ git_curl_ipresolve = CURL_IPRESOLVE_V6;
+ else if (!strcmp(value, "all"))
+ git_curl_ipresolve = CURL_IPRESOLVE_WHATEVER;
+ else
+ return -1;
+ return 0;
+#endif /* LIBCURL_VERSION_NUM >= 0x070a08 */
} else {
return 1 /* unsupported */;
}
diff --git a/transport-helper.c b/transport-helper.c
index a6bff8b308..b934183236 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -321,6 +321,21 @@ static void standard_options(struct transport *t)
if (n >= sizeof(buf))
die("impossibly large verbosity value");
set_helper_option(t, "verbosity", buf);
+
+ switch (t->family) {
+ case TRANSPORT_FAMILY_ALL:
+ /*
+ * this is already the default,
+ * do not break old remote helpers by setting "all" here
+ */
+ break;
+ case TRANSPORT_FAMILY_IPV4:
+ set_helper_option(t, "family", "ipv4");
+ break;
+ case TRANSPORT_FAMILY_IPV6:
+ set_helper_option(t, "family", "ipv6");
+ break;
+ }
}
static int release_helper(struct transport *transport)
diff --git a/transport.c b/transport.c
index c92f8ae705..e20bb771fa 100644
--- a/transport.c
+++ b/transport.c
@@ -163,6 +163,12 @@ static int connect_setup(struct transport *transport, int for_push)
if (data->conn)
return 0;
+ switch (transport->family) {
+ case TRANSPORT_FAMILY_ALL: break;
+ case TRANSPORT_FAMILY_IPV4: flags |= CONNECT_IPV4; break;
+ case TRANSPORT_FAMILY_IPV6: flags |= CONNECT_IPV6; break;
+ }
+
data->conn = git_connect(data->fd, transport->url,
for_push ? data->options.receivepack :
data->options.uploadpack,
diff --git a/transport.h b/transport.h
index 8ebaaf2cae..c68140892c 100644
--- a/transport.h
+++ b/transport.h
@@ -18,6 +18,12 @@ struct git_transport_options {
struct push_cas_option *cas;
};
+enum transport_family {
+ TRANSPORT_FAMILY_ALL = 0,
+ TRANSPORT_FAMILY_IPV4,
+ TRANSPORT_FAMILY_IPV6
+};
+
struct transport {
struct remote *remote;
const char *url;
@@ -110,6 +116,8 @@ struct transport {
* actually turns out to be smart.
*/
struct git_transport_options *smart_options;
+
+ enum transport_family family;
};
#define TRANSPORT_PUSH_ALL 1