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[Qemu-devel] [PATCH v1 2/8] net: List available netdevs with "-netdev he
From: |
Thomas Huth |
Subject: |
[Qemu-devel] [PATCH v1 2/8] net: List available netdevs with "-netdev help" |
Date: |
Mon, 19 Feb 2018 10:15:22 +0100 |
Other options like "-chardev" or "-device" feature a nice help text
with the available devices when being called with "help" or "?".
Since it is quite useful, especially if you want to see which network
backends have been compiled into the QEMU binary, let's provide such
a help text for "-netdev", too.
Signed-off-by: Thomas Huth <address@hidden>
---
net/net.c | 37 ++++++++++++++++++++++++++++++++++++-
1 file changed, 36 insertions(+), 1 deletion(-)
diff --git a/net/net.c b/net/net.c
index e213a61..08049d9 100644
--- a/net/net.c
+++ b/net/net.c
@@ -1086,6 +1086,38 @@ static int net_client_init1(const void *object, bool
is_netdev, Error **errp)
return 0;
}
+static void show_netdevs(void)
+{
+ int idx;
+ const char *available_netdevs[] = {
+ "socket",
+ "hubport",
+ "tap",
+#ifdef CONFIG_SLIRP
+ "user",
+#endif
+#ifdef CONFIG_L2TPV3
+ "l2tpv3",
+#endif
+#ifdef CONFIG_VDE
+ "vde",
+#endif
+#ifdef CONFIG_NET_BRIDGE
+ "bridge",
+#endif
+#ifdef CONFIG_NETMAP
+ "netmap",
+#endif
+#ifdef CONFIG_POSIX
+ "vhost-user",
+#endif
+ };
+
+ printf("Available netdev backend types:\n");
+ for (idx = 0; idx < ARRAY_SIZE(available_netdevs); idx++) {
+ puts(available_netdevs[idx]);
+ }
+}
int net_client_init(QemuOpts *opts, bool is_netdev, Error **errp)
{
@@ -1094,7 +1126,10 @@ int net_client_init(QemuOpts *opts, bool is_netdev,
Error **errp)
int ret = -1;
Visitor *v = opts_visitor_new(opts);
- {
+ if (is_netdev && is_help_option(qemu_opt_get(opts, "type"))) {
+ show_netdevs();
+ exit(1);
+ } else {
/* Parse convenience option format ip6-net=fec0::0[/64] */
const char *ip6_net = qemu_opt_get(opts, "ipv6-net");
--
1.8.3.1
- [Qemu-devel] [PATCH v1 0/8] Improvements and clean-ups related to -net, Thomas Huth, 2018/02/19
- [Qemu-devel] [PATCH v1 1/8] net: Move error reporting from net_init_client/netdev to the calling site, Thomas Huth, 2018/02/19
- [Qemu-devel] [PATCH v1 2/8] net: List available netdevs with "-netdev help",
Thomas Huth <=
- [Qemu-devel] [PATCH v1 3/8] net: Only show vhost-user in the help text if CONFIG_POSIX is defined, Thomas Huth, 2018/02/19
- [Qemu-devel] [PATCH v1 4/8] net: Make net_client_init() static, Thomas Huth, 2018/02/19
- [Qemu-devel] [PATCH v1 5/8] net: Remove the deprecated way of dumping network packets, Thomas Huth, 2018/02/19
- [Qemu-devel] [PATCH v1 6/8] net: Remove the deprecated 'host_net_add' and 'host_net_remove' HMP commands, Thomas Huth, 2018/02/19