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net: Provide VLAN client lookup helper 

Introduce qemu_find_vlan_client_by_name for VLANClientState lookup based
on VLAN ID and client name. This is useful for monitor commands.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2009-06-24 14:42:31 +02:00 committed by Anthony Liguori
parent 28432466f3
commit 1a60952027
3 changed files with 34 additions and 14 deletions
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2
hw/xen_nic.c
View File

@ -301,7 +301,7 @@ static int net_init(struct XenDevice *xendev)
if (netdev->mac == NULL)
return -1;
vlan = qemu_find_vlan(netdev->xendev.dev);
vlan = qemu_find_vlan(netdev->xendev.dev, 1);
netdev->vs = qemu_new_vlan_client(vlan, "xen", NULL,
net_rx_ok, net_rx_packet, NULL,
NULL, netdev);

44
net.c
View File

@ -389,6 +389,32 @@ VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
return NULL;
}
static VLANClientState *
qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
const char *client_str)
{
VLANState *vlan;
VLANClientState *vc;
vlan = qemu_find_vlan(vlan_id, 0);
if (!vlan) {
monitor_printf(mon, "unknown VLAN %d\n", vlan_id);
return NULL;
}
for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
if (!strcmp(vc->name, client_str)) {
break;
}
}
if (!vc) {
monitor_printf(mon, "can't find device %s on VLAN %d\n",
client_str, vlan_id);
}
return vc;
}
int qemu_can_send_packet(VLANClientState *sender)
{
VLANState *vlan = sender->vlan;
@ -2255,13 +2281,16 @@ static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
}
/* find or alloc a new VLAN */
VLANState *qemu_find_vlan(int id)
VLANState *qemu_find_vlan(int id, int allocate)
{
VLANState **pvlan, *vlan;
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
if (vlan->id == id)
return vlan;
}
if (!allocate) {
return NULL;
}
vlan = qemu_mallocz(sizeof(VLANState));
vlan->id = id;
vlan->next = NULL;
@ -2327,7 +2356,7 @@ int net_client_init(Monitor *mon, const char *device, const char *p)
if (get_param_value(buf, sizeof(buf), "vlan", p)) {
vlan_id = strtol(buf, NULL, 0);
}
vlan = qemu_find_vlan(vlan_id);
vlan = qemu_find_vlan(vlan_id, 1);
if (get_param_value(buf, sizeof(buf), "name", p)) {
name = qemu_strdup(buf);
@ -2740,19 +2769,10 @@ void net_host_device_add(Monitor *mon, const char *device, const char *opts)
void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
{
VLANState *vlan;
VLANClientState *vc;
vlan = qemu_find_vlan(vlan_id);
for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
if (!strcmp(vc->name, device)) {
break;
}
}
vc = qemu_find_vlan_client_by_name(mon, vlan_id, device);
if (!vc) {
monitor_printf(mon, "can't find device %s\n", device);
return;
}
if (!net_host_check_device(vc->model)) {

2
net.h
View File

@ -51,7 +51,7 @@ struct VLANState {
int delivering;
};
VLANState *qemu_find_vlan(int id);
VLANState *qemu_find_vlan(int id, int allocate);
VLANClientState *qemu_new_vlan_client(VLANState *vlan,
const char *model,
const char *name,