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[Qemu-devel] [PULL 2/9] net: List available netdevs with "-netdev help"
From: |
Jason Wang |
Subject: |
[Qemu-devel] [PULL 2/9] net: List available netdevs with "-netdev help" |
Date: |
Mon, 5 Mar 2018 11:11:57 +0800 |
From: Thomas Huth <address@hidden>
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.
Reviewed-by: Paolo Bonzini <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Signed-off-by: Thomas Huth <address@hidden>
Signed-off-by: Jason Wang <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..cf07e15 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(0);
+ } else {
/* Parse convenience option format ip6-net=fec0::0[/64] */
const char *ip6_net = qemu_opt_get(opts, "ipv6-net");
--
2.7.4
- [Qemu-devel] [PULL 0/9] Net patches, Jason Wang, 2018/03/04
- [Qemu-devel] [PULL 2/9] net: List available netdevs with "-netdev help",
Jason Wang <=
- [Qemu-devel] [PULL 1/9] net: Move error reporting from net_init_client/netdev to the calling site, Jason Wang, 2018/03/04
- [Qemu-devel] [PULL 3/9] net: Only show vhost-user in the help text if CONFIG_POSIX is defined, Jason Wang, 2018/03/04
- [Qemu-devel] [PULL 4/9] net: Make net_client_init() static, Jason Wang, 2018/03/04
- [Qemu-devel] [PULL 5/9] net: Remove the deprecated way of dumping network packets, Jason Wang, 2018/03/04
- [Qemu-devel] [PULL 6/9] net: Remove the deprecated 'host_net_add' and 'host_net_remove' HMP commands, Jason Wang, 2018/03/04
- [Qemu-devel] [PULL 7/9] net: Add a new convenience option "--nic" to configure default/on-board NICs, Jason Wang, 2018/03/04
- [Qemu-devel] [PULL 8/9] hw/net: Remove unnecessary header includes, Jason Wang, 2018/03/04
- [Qemu-devel] [PULL 9/9] tap: setting error appropriately when calling net_init_tap_one(), Jason Wang, 2018/03/04
- Re: [Qemu-devel] [PULL 0/9] Net patches, Peter Maydell, 2018/03/05