diff options
Diffstat (limited to 'arch/um/drivers/umcast_kern.c')
| -rw-r--r-- | arch/um/drivers/umcast_kern.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/arch/um/drivers/umcast_kern.c b/arch/um/drivers/umcast_kern.c deleted file mode 100644 index 595a54f2b9c6..000000000000 --- a/arch/um/drivers/umcast_kern.c +++ /dev/null @@ -1,188 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * user-mode-linux networking multicast transport - * Copyright (C) 2001 by Harald Welte <laforge@gnumonks.org> - * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - * - * 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. - * - */ - -#include <linux/init.h> -#include <linux/netdevice.h> -#include "umcast.h" -#include <net_kern.h> - -struct umcast_init { - char *addr; - int lport; - int rport; - int ttl; - bool unicast; -}; - -static void umcast_init(struct net_device *dev, void *data) -{ - struct uml_net_private *pri; - struct umcast_data *dpri; - struct umcast_init *init = data; - - pri = netdev_priv(dev); - dpri = (struct umcast_data *) pri->user; - dpri->addr = init->addr; - dpri->lport = init->lport; - dpri->rport = init->rport; - dpri->unicast = init->unicast; - dpri->ttl = init->ttl; - dpri->dev = dev; - - if (dpri->unicast) { - printk(KERN_INFO "ucast backend address: %s:%u listen port: " - "%u\n", dpri->addr, dpri->rport, dpri->lport); - } else { - printk(KERN_INFO "mcast backend multicast address: %s:%u, " - "TTL:%u\n", dpri->addr, dpri->lport, dpri->ttl); - } -} - -static int umcast_read(int fd, struct sk_buff *skb, struct uml_net_private *lp) -{ - return net_recvfrom(fd, skb_mac_header(skb), - skb->dev->mtu + ETH_HEADER_OTHER); -} - -static int umcast_write(int fd, struct sk_buff *skb, struct uml_net_private *lp) -{ - return umcast_user_write(fd, skb->data, skb->len, - (struct umcast_data *) &lp->user); -} - -static const struct net_kern_info umcast_kern_info = { - .init = umcast_init, - .protocol = eth_protocol, - .read = umcast_read, - .write = umcast_write, -}; - -static int mcast_setup(char *str, char **mac_out, void *data) -{ - struct umcast_init *init = data; - char *port_str = NULL, *ttl_str = NULL, *remain; - char *last; - - *init = ((struct umcast_init) - { .addr = "239.192.168.1", - .lport = 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) { - init->lport = 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; - } - } - - 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; - } - } - - init->unicast = false; - init->rport = init->lport; - - printk(KERN_INFO "Configured mcast device: %s:%u-%u\n", init->addr, - init->lport, init->ttl); - - return 1; -} - -static int ucast_setup(char *str, char **mac_out, void *data) -{ - struct umcast_init *init = data; - char *lport_str = NULL, *rport_str = NULL, *remain; - char *last; - - *init = ((struct umcast_init) - { .addr = "", - .lport = 1102, - .rport = 1102 }); - - remain = split_if_spec(str, mac_out, &init->addr, - &lport_str, &rport_str, NULL); - if (remain != NULL) { - printk(KERN_ERR "ucast_setup - Extra garbage on " - "specification : '%s'\n", remain); - return 0; - } - - if (lport_str != NULL) { - init->lport = simple_strtoul(lport_str, &last, 10); - if ((*last != '\0') || (last == lport_str)) { - printk(KERN_ERR "ucast_setup - Bad listen port : " - "'%s'\n", lport_str); - return 0; - } - } - - if (rport_str != NULL) { - init->rport = simple_strtoul(rport_str, &last, 10); - if ((*last != '\0') || (last == rport_str)) { - printk(KERN_ERR "ucast_setup - Bad remote port : " - "'%s'\n", rport_str); - return 0; - } - } - - init->unicast = true; - - printk(KERN_INFO "Configured ucast device: :%u -> %s:%u\n", - init->lport, init->addr, init->rport); - - return 1; -} - -static struct transport mcast_transport = { - .list = LIST_HEAD_INIT(mcast_transport.list), - .name = "mcast", - .setup = mcast_setup, - .user = &umcast_user_info, - .kern = &umcast_kern_info, - .private_size = sizeof(struct umcast_data), - .setup_size = sizeof(struct umcast_init), -}; - -static struct transport ucast_transport = { - .list = LIST_HEAD_INIT(ucast_transport.list), - .name = "ucast", - .setup = ucast_setup, - .user = &umcast_user_info, - .kern = &umcast_kern_info, - .private_size = sizeof(struct umcast_data), - .setup_size = sizeof(struct umcast_init), -}; - -static int register_umcast(void) -{ - register_transport(&mcast_transport); - register_transport(&ucast_transport); - return 0; -} - -late_initcall(register_umcast); |