1 files changed, 108 insertions, 0 deletions

diff --git a/arch/um/drivers/daemon_kern.c b/arch/um/drivers/daemon_kern.c
new file mode 100644
index 000000000000..30d285b266af
--- /dev/null
+++ b/arch/um/drivers/daemon_kern.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and 
+ * James Leu (jleu@mindspring.net).
+ * Copyright (C) 2001 by various other people who didn't put their name here.
+ * Licensed under the GPL.
+ */
+
+#include "linux/kernel.h"
+#include "linux/init.h"
+#include "linux/netdevice.h"
+#include "linux/etherdevice.h"
+#include "net_kern.h"
+#include "net_user.h"
+#include "daemon.h"
+
+struct daemon_init {
+        char *sock_type;
+        char *ctl_sock;
+};
+
+void daemon_init(struct net_device *dev, void *data)
+{
+        struct uml_net_private *pri;
+        struct daemon_data *dpri;
+        struct daemon_init *init = data;
+
+        pri = dev->priv;
+        dpri = (struct daemon_data *) pri->user;
+        dpri->sock_type = init->sock_type;
+        dpri->ctl_sock = init->ctl_sock;
+        dpri->fd = -1;
+        dpri->control = -1;
+        dpri->dev = dev;
+
+        printk("daemon backend (uml_switch version %d) - %s:%s", 
+               SWITCH_VERSION, dpri->sock_type, dpri->ctl_sock);
+        printk("\n");
+}
+
+static int daemon_read(int fd, struct sk_buff **skb, 
+                       struct uml_net_private *lp)
+{
+        *skb = ether_adjust_skb(*skb, ETH_HEADER_OTHER);
+        if(*skb == NULL) return(-ENOMEM);
+        return(net_recvfrom(fd, (*skb)->mac.raw, 
+                            (*skb)->dev->mtu + ETH_HEADER_OTHER));
+}
+
+static int daemon_write(int fd, struct sk_buff **skb,
+                        struct uml_net_private *lp)
+{
+        return(daemon_user_write(fd, (*skb)->data, (*skb)->len, 
+                                 (struct daemon_data *) &lp->user));
+}
+
+static struct net_kern_info daemon_kern_info = {
+        .init                   = daemon_init,
+        .protocol               = eth_protocol,
+        .read                   = daemon_read,
+        .write                  = daemon_write,
+};
+
+int daemon_setup(char *str, char **mac_out, void *data)
+{
+        struct daemon_init *init = data;
+        char *remain;
+
+        *init = ((struct daemon_init)
+                { .sock_type            = "unix",
+                  .ctl_sock             = "/tmp/uml.ctl" });
+        
+        remain = split_if_spec(str, mac_out, &init->sock_type, &init->ctl_sock,
+                               NULL);
+        if(remain != NULL)
+                printk(KERN_WARNING "daemon_setup : Ignoring data socket "
+                       "specification\n");
+        
+        return(1);
+}
+
+static struct transport daemon_transport = {
+        .list           = LIST_HEAD_INIT(daemon_transport.list),
+        .name           = "daemon",
+        .setup          = daemon_setup,
+        .user           = &daemon_user_info,
+        .kern           = &daemon_kern_info,
+        .private_size   = sizeof(struct daemon_data),
+        .setup_size     = sizeof(struct daemon_init),
+};
+
+static int register_daemon(void)
+{
+        register_transport(&daemon_transport);
+        return(1);
+}
+
+__initcall(register_daemon);
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */