/*
* Called by devopen after it sets f->f_dev to our devsw entry.
* This opens the low-level device and sets f->f_devdata.
* This is declared with variable arguments...
*/
int
net_open(struct open_file *f, void *vdev)
{
char *devname; /* Device part of file name (or NULL). */
int error = 0;
devname = vdev;
/* On first open, do netif open, mount, etc. */
if (netdev_opens == 0) {
/* Find network interface. */
if (netdev_sock < 0) {
netdev_sock = netif_open(devname);
if (netdev_sock < 0) {
printf("net_open: netif_open() failed\n");
return (ENXIO);
}
if (debug)
printf("net_open: netif_open() succeeded\n");
}
if (rootip.s_addr == 0) {
/* Get root IP address, and path, etc. */
error = net_getparams(netdev_sock);
if (error) {
/* getparams makes its own noise */
netif_close(netdev_sock);
netdev_sock = -1;
return (error);
}
}
}
netdev_opens++;
f->f_devdata = &netdev_sock;
return (error);
}
/*
* Called by devopen after it sets f->f_dev to our devsw entry.
* This opens the low-level device and sets f->f_devdata.
* This is declared with variable arguments...
*/
int
net_open(struct open_file *f, ...)
{
va_list ap;
char *devname; /* Device part of file name (or NULL). */
int error = 0;
va_start(ap, f);
devname = va_arg(ap, char*);
va_end(ap);
#ifdef NETIF_DEBUG
if (debug)
printf("net_open: %s\n", devname);
#endif
/* On first open, do netif open, mount, etc. */
if (netdev_opens == 0) {
/* Find network interface. */
if (netdev_sock < 0) {
netdev_sock = netif_open(devname);
if (netdev_sock < 0) {
printf("net_open: netif_open() failed\n");
return (ENXIO);
}
if (debug)
printf("net_open: netif_open() succeeded\n");
}
if (rootip.s_addr == 0) {
/* Get root IP address, and path, etc. */
error = net_getparams(netdev_sock);
if (error) {
/* getparams makes its own noise */
goto fail;
}
/* Get the NFS file handle (mountd). */
error = nfs_mount(netdev_sock, rootip, rootpath);
if (error) {
error = errno;
printf("net_open: NFS mount error=%d\n", error);
rootip.s_addr = 0;
fail:
netif_close(netdev_sock);
netdev_sock = -1;
return (error);
}
if (debug)
printf("net_open: NFS mount succeeded\n");
}
}
netdev_opens++;
f->f_devdata = nfs_root_node;
return (error);
}
/*
* Called by devopen after it sets f->f_dev to our devsw entry.
* This opens the low-level device and sets f->f_devdata.
* This is declared with variable arguments...
*/
int
net_open(struct open_file *f, ...)
{
int error = 0;
#ifdef NETIF_DEBUG
if (debug)
printf("net_open\n");
#endif
/* On first open, do netif open, mount, etc. */
if (netdev_opens == 0) {
/* Find network interface. */
if (netdev_sock < 0) {
netdev_sock = pxe_netif_open();
if (netdev_sock < 0) {
printf("net_open: netif_open() failed\n");
return (ENXIO);
}
if (debug)
printf("net_open: netif_open() succeeded\n");
}
if (rootip.s_addr == 0) {
/* Get root IP address, and path, etc. */
error = net_getparams(netdev_sock);
if (error) {
/* getparams makes its own noise */
pxe_netif_close(netdev_sock);
netdev_sock = -1;
return (error);
}
}
}
netdev_opens++;
f->f_devdata = &netdev_sock;
return (error);
}
/*
* Called by devopen after it sets f->f_dev to our devsw entry.
* This opens the low-level device and sets f->f_devdata.
* This is declared with variable arguments...
*/
static int
net_open(struct open_file *f, ...)
{
char temp[FNAME_SIZE];
struct iodesc *d;
va_list args;
char *devname; /* Device part of file name (or NULL). */
int error = 0;
va_start(args, f);
devname = va_arg(args, char*);
va_end(args);
#ifdef NETIF_OPEN_CLOSE_ONCE
/* Before opening another interface, close the previous one first. */
if (netdev_sock >= 0 && strcmp(devname, netdev_name) != 0)
net_cleanup();
#endif
/* On first open, do netif open, mount, etc. */
if (netdev_opens == 0) {
/* Find network interface. */
if (netdev_sock < 0) {
netdev_sock = netif_open(devname);
if (netdev_sock < 0) {
printf("net_open: netif_open() failed\n");
return (ENXIO);
}
netdev_name = strdup(devname);
#ifdef NETIF_DEBUG
if (debug)
printf("net_open: netif_open() succeeded\n");
#endif
}
/*
* If network params were not set by netif_open(), try to get
* them via bootp, rarp, etc.
*/
if (rootip.s_addr == 0) {
/* Get root IP address, and path, etc. */
error = net_getparams(netdev_sock);
if (error) {
/* getparams makes its own noise */
free(netdev_name);
netif_close(netdev_sock);
netdev_sock = -1;
return (error);
}
}
/*
* Set the variables required by the kernel's nfs_diskless
* mechanism. This is the minimum set of variables required to
* mount a root filesystem without needing to obtain additional
* info from bootp or other sources.
*/
d = socktodesc(netdev_sock);
sprintf(temp, "%6D", d->myea, ":");
setenv("boot.netif.hwaddr", temp, 1);
setenv("boot.netif.ip", inet_ntoa(myip), 1);
setenv("boot.netif.netmask", intoa(netmask), 1);
setenv("boot.netif.gateway", inet_ntoa(gateip), 1);
setenv("boot.nfsroot.server", inet_ntoa(rootip), 1);
setenv("boot.nfsroot.path", rootpath, 1);
}
netdev_opens++;
f->f_devdata = &netdev_sock;
return (error);
}
