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https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 09:08:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
188
arch/um/drivers/umcast_kern.c
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188
arch/um/drivers/umcast_kern.c
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/*
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* user-mode-linux networking multicast transport
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* Copyright (C) 2001 by Harald Welte <laforge@gnumonks.org>
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* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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*
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* based on the existing uml-networking code, which is
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* Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
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* James Leu (jleu@mindspring.net).
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* Copyright (C) 2001 by various other people who didn't put their name here.
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*
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* Licensed under the GPL.
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*/
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#include <linux/init.h>
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#include <linux/netdevice.h>
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#include "umcast.h"
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#include <net_kern.h>
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struct umcast_init {
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char *addr;
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int lport;
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int rport;
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int ttl;
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bool unicast;
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};
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static void umcast_init(struct net_device *dev, void *data)
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{
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struct uml_net_private *pri;
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struct umcast_data *dpri;
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struct umcast_init *init = data;
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pri = netdev_priv(dev);
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dpri = (struct umcast_data *) pri->user;
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dpri->addr = init->addr;
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dpri->lport = init->lport;
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dpri->rport = init->rport;
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dpri->unicast = init->unicast;
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dpri->ttl = init->ttl;
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dpri->dev = dev;
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if (dpri->unicast) {
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printk(KERN_INFO "ucast backend address: %s:%u listen port: "
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"%u\n", dpri->addr, dpri->rport, dpri->lport);
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} else {
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printk(KERN_INFO "mcast backend multicast address: %s:%u, "
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"TTL:%u\n", dpri->addr, dpri->lport, dpri->ttl);
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}
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}
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static int umcast_read(int fd, struct sk_buff *skb, struct uml_net_private *lp)
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{
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return net_recvfrom(fd, skb_mac_header(skb),
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skb->dev->mtu + ETH_HEADER_OTHER);
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}
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static int umcast_write(int fd, struct sk_buff *skb, struct uml_net_private *lp)
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{
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return umcast_user_write(fd, skb->data, skb->len,
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(struct umcast_data *) &lp->user);
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}
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static const struct net_kern_info umcast_kern_info = {
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.init = umcast_init,
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.protocol = eth_protocol,
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.read = umcast_read,
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.write = umcast_write,
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};
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static int mcast_setup(char *str, char **mac_out, void *data)
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{
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struct umcast_init *init = data;
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char *port_str = NULL, *ttl_str = NULL, *remain;
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char *last;
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*init = ((struct umcast_init)
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{ .addr = "239.192.168.1",
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.lport = 1102,
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.ttl = 1 });
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remain = split_if_spec(str, mac_out, &init->addr, &port_str, &ttl_str,
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NULL);
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if (remain != NULL) {
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printk(KERN_ERR "mcast_setup - Extra garbage on "
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"specification : '%s'\n", remain);
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return 0;
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}
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if (port_str != NULL) {
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init->lport = simple_strtoul(port_str, &last, 10);
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if ((*last != '\0') || (last == port_str)) {
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printk(KERN_ERR "mcast_setup - Bad port : '%s'\n",
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port_str);
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return 0;
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}
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}
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if (ttl_str != NULL) {
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init->ttl = simple_strtoul(ttl_str, &last, 10);
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if ((*last != '\0') || (last == ttl_str)) {
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printk(KERN_ERR "mcast_setup - Bad ttl : '%s'\n",
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ttl_str);
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return 0;
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}
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}
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init->unicast = false;
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init->rport = init->lport;
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printk(KERN_INFO "Configured mcast device: %s:%u-%u\n", init->addr,
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init->lport, init->ttl);
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return 1;
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}
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static int ucast_setup(char *str, char **mac_out, void *data)
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{
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struct umcast_init *init = data;
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char *lport_str = NULL, *rport_str = NULL, *remain;
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char *last;
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*init = ((struct umcast_init)
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{ .addr = "",
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.lport = 1102,
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.rport = 1102 });
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remain = split_if_spec(str, mac_out, &init->addr,
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&lport_str, &rport_str, NULL);
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if (remain != NULL) {
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printk(KERN_ERR "ucast_setup - Extra garbage on "
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"specification : '%s'\n", remain);
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return 0;
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}
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if (lport_str != NULL) {
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init->lport = simple_strtoul(lport_str, &last, 10);
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if ((*last != '\0') || (last == lport_str)) {
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printk(KERN_ERR "ucast_setup - Bad listen port : "
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"'%s'\n", lport_str);
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return 0;
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}
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}
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if (rport_str != NULL) {
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init->rport = simple_strtoul(rport_str, &last, 10);
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if ((*last != '\0') || (last == rport_str)) {
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printk(KERN_ERR "ucast_setup - Bad remote port : "
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"'%s'\n", rport_str);
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return 0;
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}
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}
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init->unicast = true;
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printk(KERN_INFO "Configured ucast device: :%u -> %s:%u\n",
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init->lport, init->addr, init->rport);
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return 1;
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}
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static struct transport mcast_transport = {
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.list = LIST_HEAD_INIT(mcast_transport.list),
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.name = "mcast",
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.setup = mcast_setup,
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.user = &umcast_user_info,
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.kern = &umcast_kern_info,
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.private_size = sizeof(struct umcast_data),
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.setup_size = sizeof(struct umcast_init),
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};
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static struct transport ucast_transport = {
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.list = LIST_HEAD_INIT(ucast_transport.list),
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.name = "ucast",
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.setup = ucast_setup,
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.user = &umcast_user_info,
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.kern = &umcast_kern_info,
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.private_size = sizeof(struct umcast_data),
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.setup_size = sizeof(struct umcast_init),
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};
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static int register_umcast(void)
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{
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register_transport(&mcast_transport);
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register_transport(&ucast_transport);
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return 0;
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}
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late_initcall(register_umcast);
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