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Diffstat (limited to 'arch/um/drivers/daemon_kern.c')
-rw-r--r--arch/um/drivers/daemon_kern.c108
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 00000000000..30d285b266a
--- /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:
+ */