Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 143 insertions, 0 deletions

diff --git a/arch/um/drivers/mcast_kern.c b/arch/um/drivers/mcast_kern.c
new file mode 100644
index 000000000000..faf714e87b5b
--- /dev/null
+++ b/arch/um/drivers/mcast_kern.c
@@ -0,0 +1,143 @@
+/*
+ * user-mode-linux networking multicast transport
+ * Copyright (C) 2001 by Harald Welte <laforge@gnumonks.org>
+ *
+ * based on the existing uml-networking code, which is
+ * 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 "linux/in.h"
+#include "linux/inet.h"
+#include "net_kern.h"
+#include "net_user.h"
+#include "mcast.h"
+
+struct mcast_init {
+        char *addr;
+        int port;
+        int ttl;
+};
+
+void mcast_init(struct net_device *dev, void *data)
+{
+        struct uml_net_private *pri;
+        struct mcast_data *dpri;
+        struct mcast_init *init = data;
+
+        pri = dev->priv;
+        dpri = (struct mcast_data *) pri->user;
+        dpri->addr = init->addr;
+        dpri->port = init->port;
+        dpri->ttl = init->ttl;
+        dpri->dev = dev;
+
+        printk("mcast backend ");
+        printk("multicast adddress: %s:%u, TTL:%u ",
+               dpri->addr, dpri->port, dpri->ttl);
+
+        printk("\n");
+}
+
+static int mcast_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 mcast_write(int fd, struct sk_buff **skb,
+                        struct uml_net_private *lp)
+{
+        return mcast_user_write(fd, (*skb)->data, (*skb)->len, 
+                                 (struct mcast_data *) &lp->user);
+}
+
+static struct net_kern_info mcast_kern_info = {
+        .init                   = mcast_init,
+        .protocol               = eth_protocol,
+        .read                   = mcast_read,
+        .write                  = mcast_write,
+};
+
+int mcast_setup(char *str, char **mac_out, void *data)
+{
+        struct mcast_init *init = data;
+        char *port_str = NULL, *ttl_str = NULL, *remain;
+        char *last;
+        int n;
+
+        *init = ((struct mcast_init)
+                { .addr         = "239.192.168.1",
+                  .port         = 1102,
+                  .ttl          = 1 });
+
+        remain = split_if_spec(str, mac_out, &init->addr, &port_str, &ttl_str,
+                               NULL);
+        if(remain != NULL){
+                printk(KERN_ERR "mcast_setup - Extra garbage on "
+                       "specification : '%s'\n", remain);
+                return(0);
+        }
+        
+        if(port_str != NULL){
+                n = simple_strtoul(port_str, &last, 10);
+                if((*last != '\0') || (last == port_str)){
+                        printk(KERN_ERR "mcast_setup - Bad port : '%s'\n", 
+                               port_str);
+                        return(0);
+                }
+                init->port = htons(n);
+        }
+
+        if(ttl_str != NULL){
+                init->ttl = simple_strtoul(ttl_str, &last, 10);
+                if((*last != '\0') || (last == ttl_str)){
+                        printk(KERN_ERR "mcast_setup - Bad ttl : '%s'\n", 
+                               ttl_str);
+                        return(0);
+                }
+        }
+
+        printk(KERN_INFO "Configured mcast device: %s:%u-%u\n", init->addr,
+               init->port, init->ttl);
+
+        return(1);
+}
+
+static struct transport mcast_transport = {
+        .list           = LIST_HEAD_INIT(mcast_transport.list),
+        .name           = "mcast",
+        .setup          = mcast_setup,
+        .user           = &mcast_user_info,
+        .kern           = &mcast_kern_info,
+        .private_size   = sizeof(struct mcast_data),
+        .setup_size     = sizeof(struct mcast_init),
+};
+
+static int register_mcast(void)
+{
+        register_transport(&mcast_transport);
+        return(1);
+}
+
+__initcall(register_mcast);
+
+/*
+ * 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:
+ */