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Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging

# gpg: Signature made Wed Jun 24 16:37:23 2015 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/net-pull-request:
  net: simplify net_client_init1()
  net: drop if expression that is always true
  net: raise an error if -net type is invalid
  net: replace net_client_init1() netdev whitelist with blacklist
  net: add missing "netmap" to host_net_devices[]

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2015-06-25 14:03:55 +01:00
commit 0a4a0312bf
1 changed files with 37 additions and 54 deletions
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91
net/net.c
View File

@ -60,6 +60,9 @@ const char *host_net_devices[] = {
#ifdef CONFIG_NET_BRIDGE
"bridge",
#endif
#ifdef CONFIG_NETMAP
"netmap",
#endif
#ifdef CONFIG_SLIRP
"user",
#endif
@ -910,78 +913,58 @@ static int (* const net_client_init_fun[NET_CLIENT_OPTIONS_KIND_MAX])(
static int net_client_init1(const void *object, int is_netdev, Error **errp)
{
union {
const Netdev *netdev;
const NetLegacy *net;
} u;
const NetClientOptions *opts;
const char *name;
NetClientState *peer = NULL;
if (is_netdev) {
u.netdev = object;
opts = u.netdev->opts;
name = u.netdev->id;
const Netdev *netdev = object;
opts = netdev->opts;
name = netdev->id;
switch (opts->kind) {
#ifdef CONFIG_SLIRP
case NET_CLIENT_OPTIONS_KIND_USER:
#endif
case NET_CLIENT_OPTIONS_KIND_TAP:
case NET_CLIENT_OPTIONS_KIND_SOCKET:
#ifdef CONFIG_VDE
case NET_CLIENT_OPTIONS_KIND_VDE:
#endif
#ifdef CONFIG_NETMAP
case NET_CLIENT_OPTIONS_KIND_NETMAP:
#endif
#ifdef CONFIG_NET_BRIDGE
case NET_CLIENT_OPTIONS_KIND_BRIDGE:
#endif
case NET_CLIENT_OPTIONS_KIND_HUBPORT:
#ifdef CONFIG_VHOST_NET_USED
case NET_CLIENT_OPTIONS_KIND_VHOST_USER:
#endif
#ifdef CONFIG_L2TPV3
case NET_CLIENT_OPTIONS_KIND_L2TPV3:
#endif
break;
default:
if (opts->kind == NET_CLIENT_OPTIONS_KIND_DUMP ||
opts->kind == NET_CLIENT_OPTIONS_KIND_NIC ||
!net_client_init_fun[opts->kind]) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type",
"a netdev backend type");
return -1;
}
} else {
u.net = object;
opts = u.net->opts;
const NetLegacy *net = object;
opts = net->opts;
/* missing optional values have been initialized to "all bits zero" */
name = net->has_id ? net->id : net->name;
if (opts->kind == NET_CLIENT_OPTIONS_KIND_NONE) {
return 0; /* nothing to do */
}
if (opts->kind == NET_CLIENT_OPTIONS_KIND_HUBPORT) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type",
"a net type");
return -1;
}
/* missing optional values have been initialized to "all bits zero" */
name = u.net->has_id ? u.net->id : u.net->name;
}
if (net_client_init_fun[opts->kind]) {
NetClientState *peer = NULL;
/* Do not add to a vlan if it's a -netdev or a nic with a netdev=
* parameter. */
if (!is_netdev &&
(opts->kind != NET_CLIENT_OPTIONS_KIND_NIC ||
!opts->nic->has_netdev)) {
peer = net_hub_add_port(u.net->has_vlan ? u.net->vlan : 0, NULL);
}
if (net_client_init_fun[opts->kind](opts, name, peer, errp) < 0) {
/* FIXME drop when all init functions store an Error */
if (errp && !*errp) {
error_setg(errp, QERR_DEVICE_INIT_FAILED,
NetClientOptionsKind_lookup[opts->kind]);
}
if (!net_client_init_fun[opts->kind]) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type",
"a net backend type (maybe it is not compiled "
"into this binary)");
return -1;
}
/* Do not add to a vlan if it's a nic with a netdev= parameter. */
if (opts->kind != NET_CLIENT_OPTIONS_KIND_NIC ||
!opts->nic->has_netdev) {
peer = net_hub_add_port(net->has_vlan ? net->vlan : 0, NULL);
}
}
if (net_client_init_fun[opts->kind](opts, name, peer, errp) < 0) {
/* FIXME drop when all init functions store an Error */
if (errp && !*errp) {
error_setg(errp, QERR_DEVICE_INIT_FAILED,
NetClientOptionsKind_lookup[opts->kind]);
}
return -1;
}
return 0;
}