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Simplify -usbdevice net: syntax, allow VLANs with no NICs. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4965 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog 2008-07-29 13:16:31 +00:00
parent 2fa7d3bf59
commit 9ad97e6503
2 changed files with 35 additions and 32 deletions
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16
qemu-doc.texi
View File

@ -567,7 +567,7 @@ available devices.
Braille device. This will use BrlAPI to display the braille output on a real
or fake device.
@item net:nic_num
@item net:options
Network adapter that supports CDC ethernet and RNDIS protocols.
@end table
@ -587,7 +587,7 @@ Qemu can emulate several different models of network card.
Valid values for @var{type} are
@code{i82551}, @code{i82557b}, @code{i82559er},
@code{ne2k_pci}, @code{ne2k_isa}, @code{pcnet}, @code{rtl8139},
@code{e1000}, @code{smc91c111}, @code{lance}, @code{mcf_fec} and @code{usb}.
@code{e1000}, @code{smc91c111}, @code{lance} and @code{mcf_fec}.
Not all devices are supported on all targets. Use -net nic,model=?
for a list of available devices for your target.
@ -1725,14 +1725,12 @@ serial converter, faking a Matrix Orbital LCD Display (USB ID 0403:FA00).
@item braille
Braille device. This will use BrlAPI to display the braille output on a real
or fake device.
@item net:@var{nic_num}
Network adapter that supports CDC ethernet and RNDIS protocols. This must be
used together with the @code{-net nic,model=usb,...} option (see description),
where @var{nic_num} specifies the index of the @code{-net nic,...} option
describing the interface (zero-based).
For instance, user-mode networking can be used by specifying
@item net:@var{options}
Network adapter that supports CDC ethernet and RNDIS protocols. @var{options}
specifies NIC options as with @code{-net nic,}@var{options} (see description).
For instance, user-mode networking can be used with
@example
qemu -net user,vlan=1 -net nic,model=usb,vlan=1 -usbdevice net:0 [...OPTIONS...]
qemu [...OPTIONS...] -net user,vlan=0 -usbdevice net:vlan=0
@end example
Currently this cannot be used in machines that support PCI NICs.
@end table

51
vl.c
View File

@ -5138,26 +5138,12 @@ static int check_params(char *buf, int buf_size,
return 0;
}
static int net_client_init(const char *str)
static int net_client_init(const char *device, const char *p)
{
const char *p;
char *q;
char device[64];
char buf[1024];
int vlan_id, ret;
VLANState *vlan;
p = str;
q = device;
while (*p != '\0' && *p != ',') {
if ((q - device) < sizeof(device) - 1)
*q++ = *p;
p++;
}
*q = '\0';
if (*p == ',')
p++;
vlan_id = 0;
if (get_param_value(buf, sizeof(buf), "vlan", p)) {
vlan_id = strtol(buf, NULL, 0);
@ -5302,6 +5288,26 @@ static int net_client_init(const char *str)
return ret;
}
static int net_client_parse(const char *str)
{
const char *p;
char *q;
char device[64];
p = str;
q = device;
while (*p != '\0' && *p != ',') {
if ((q - device) < sizeof(device) - 1)
*q++ = *p;
p++;
}
*q = '\0';
if (*p == ',')
p++;
return net_client_init(device, p);
}
void do_info_network(void)
{
VLANState *vlan;
@ -5734,11 +5740,12 @@ static int usb_device_add(const char *devname)
dev = usb_baum_init();
#endif
} else if (strstart(devname, "net:", &p)) {
int nicidx = strtoul(p, NULL, 0);
int nic = nb_nics;
if (nicidx >= nb_nics || strcmp(nd_table[nicidx].model, "usb"))
if (net_client_init("nic", p) < 0)
return -1;
dev = usb_net_init(&nd_table[nicidx]);
nd_table[nic].model = "usb";
dev = usb_net_init(&nd_table[nic]);
} else {
return -1;
}
@ -8887,16 +8894,14 @@ int main(int argc, char **argv)
}
for(i = 0;i < nb_net_clients; i++) {
if (net_client_init(net_clients[i]) < 0)
if (net_client_parse(net_clients[i]) < 0)
exit(1);
}
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
continue;
if (vlan->nb_guest_devs == 0) {
fprintf(stderr, "Invalid vlan (%d) with no nics\n", vlan->id);
exit(1);
}
if (vlan->nb_guest_devs == 0)
fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
if (vlan->nb_host_devs == 0)
fprintf(stderr,
"Warning: vlan %d is not connected to host network\n",