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uml: network formatting

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Style and other non-functional changes in the UML networking code, including
	include tidying
	style violations
	copyright updates
	printks getting severities
	userspace code calling libc directly rather than using the os_*
wrappers

There's also a exit path cleanup in the pcap driver.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike 2007-10-16 01:27:29 -07:00 committed by Linus Torvalds
parent 1a80521990
commit cd1ae0e49b
22 changed files with 607 additions and 621 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
arch/um/drivers/daemon.h
View File

@ -1,8 +1,11 @@
/*
* Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
/*
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#ifndef __DAEMON_H__
#define __DAEMON_H__
#include "net_user.h"
#define SWITCH_VERSION 3
@ -20,16 +23,7 @@ struct daemon_data {
extern const struct net_user_info daemon_user_info;
extern int daemon_user_write(int fd, void *buf, int len,
extern int daemon_user_write(int fd, void *buf, int len,
struct daemon_data *pri);
/*
* 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:
*/
#endif

31
arch/um/drivers/daemon_kern.c
View File

@ -1,16 +1,14 @@
/*
* Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
* Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
* James Leu (jleu@mindspring.net).
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* 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/netdevice.h>
#include "net_kern.h"
#include "net_user.h"
#include "daemon.h"
struct daemon_init {
@ -36,25 +34,26 @@ static void daemon_init(struct net_device *dev, void *data)
dpri->data_addr = NULL;
dpri->local_addr = NULL;
printk("daemon backend (uml_switch version %d) - %s:%s",
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,
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_header(*skb),
(*skb)->dev->mtu + ETH_HEADER_OTHER));
if (*skb == NULL)
return -ENOMEM;
return net_recvfrom(fd, skb_mac_header(*skb),
(*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));
return daemon_user_write(fd, (*skb)->data, (*skb)->len,
(struct daemon_data *) &lp->user);
}
static const struct net_kern_info daemon_kern_info = {
@ -72,14 +71,14 @@ static int daemon_setup(char *str, char **mac_out, void *data)
*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)
if (remain != NULL)
printk(KERN_WARNING "daemon_setup : Ignoring data socket "
"specification\n");
return(1);
return 1;
}
static struct transport daemon_transport = {

81
arch/um/drivers/daemon_user.c
View File

@ -1,22 +1,23 @@
/*
* Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* 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 <errno.h>
#include <unistd.h>
#include <stdint.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/time.h>
#include "net_user.h"
#include <sys/un.h>
#include "daemon.h"
#include "kern_util.h"
#include "user.h"
#include "net_user.h"
#include "os.h"
#include "um_malloc.h"
#include "user.h"
#define MAX_PACKET (ETH_MAX_PACKET + ETH_HEADER_OTHER)
@ -36,8 +37,9 @@ static struct sockaddr_un *new_addr(void *name, int len)
struct sockaddr_un *sun;
sun = kmalloc(sizeof(struct sockaddr_un), UM_GFP_KERNEL);
if(sun == NULL){
printk("new_addr: allocation of sockaddr_un failed\n");
if (sun == NULL) {
printk(UM_KERN_ERR "new_addr: allocation of sockaddr_un "
"failed\n");
return NULL;
}
sun->sun_family = AF_UNIX;
@ -54,38 +56,39 @@ static int connect_to_switch(struct daemon_data *pri)
int fd, n, err;
pri->control = socket(AF_UNIX, SOCK_STREAM, 0);
if(pri->control < 0){
if (pri->control < 0) {
err = -errno;
printk("daemon_open : control socket failed, errno = %d\n",
-err);
printk(UM_KERN_ERR "daemon_open : control socket failed, "
"errno = %d\n", -err);
return err;
}
if(connect(pri->control, (struct sockaddr *) ctl_addr,
sizeof(*ctl_addr)) < 0){
if (connect(pri->control, (struct sockaddr *) ctl_addr,
sizeof(*ctl_addr)) < 0) {
err = -errno;
printk("daemon_open : control connect failed, errno = %d\n",
-err);
printk(UM_KERN_ERR "daemon_open : control connect failed, "
"errno = %d\n", -err);
goto out;
}
fd = socket(AF_UNIX, SOCK_DGRAM, 0);
if(fd < 0){
if (fd < 0) {
err = -errno;
printk("daemon_open : data socket failed, errno = %d\n",
-err);
printk(UM_KERN_ERR "daemon_open : data socket failed, "
"errno = %d\n", -err);
goto out;
}
if(bind(fd, (struct sockaddr *) local_addr, sizeof(*local_addr)) < 0){
if (bind(fd, (struct sockaddr *) local_addr, sizeof(*local_addr)) < 0) {
err = -errno;
printk("daemon_open : data bind failed, errno = %d\n",
-err);
printk(UM_KERN_ERR "daemon_open : data bind failed, "
"errno = %d\n", -err);
goto out_close;
}
sun = kmalloc(sizeof(struct sockaddr_un), UM_GFP_KERNEL);
if(sun == NULL){
printk("new_addr: allocation of sockaddr_un failed\n");
if (sun == NULL) {
printk(UM_KERN_ERR "new_addr: allocation of sockaddr_un "
"failed\n");
err = -ENOMEM;
goto out_close;
}
@ -94,18 +97,18 @@ static int connect_to_switch(struct daemon_data *pri)
req.version = SWITCH_VERSION;
req.type = REQ_NEW_CONTROL;
req.sock = *local_addr;
n = os_write_file(pri->control, &req, sizeof(req));
if(n != sizeof(req)){
printk("daemon_open : control setup request failed, err = %d\n",
-n);
n = write(pri->control, &req, sizeof(req));
if (n != sizeof(req)) {
printk(UM_KERN_ERR "daemon_open : control setup request "
"failed, err = %d\n", -errno);
err = -ENOTCONN;
goto out_free;
}
n = os_read_file(pri->control, sun, sizeof(*sun));
if(n != sizeof(*sun)){
printk("daemon_open : read of data socket failed, err = %d\n",
-n);
n = read(pri->control, sun, sizeof(*sun));
if (n != sizeof(*sun)) {
printk(UM_KERN_ERR "daemon_open : read of data socket failed, "
"err = %d\n", -errno);
err = -ENOTCONN;
goto out_free;
}
@ -116,9 +119,9 @@ static int connect_to_switch(struct daemon_data *pri)
out_free:
kfree(sun);
out_close:
os_close_file(fd);
close(fd);
out:
os_close_file(pri->control);
close(pri->control);
return err;
}
@ -132,8 +135,8 @@ static int daemon_user_init(void *data, void *dev)
int usecs;
} name;
if(!strcmp(pri->sock_type, "unix"))
pri->ctl_addr = new_addr(pri->ctl_sock,
if (!strcmp(pri->sock_type, "unix"))
pri->ctl_addr = new_addr(pri->ctl_sock,
strlen(pri->ctl_sock) + 1);
name.zero = 0;
name.pid = os_getpid();
@ -142,7 +145,7 @@ static int daemon_user_init(void *data, void *dev)
pri->local_addr = new_addr(&name, sizeof(name));
pri->dev = dev;
pri->fd = connect_to_switch(pri);
if(pri->fd < 0){
if (pri->fd < 0) {
kfree(pri->local_addr);
pri->local_addr = NULL;
return pri->fd;
@ -161,9 +164,9 @@ static void daemon_remove(void *data)
{
struct daemon_data *pri = data;
os_close_file(pri->fd);
close(pri->fd);
pri->fd = -1;
os_close_file(pri->control);
close(pri->control);
pri->control = -1;
kfree(pri->data_addr);

16
arch/um/drivers/mcast.h
View File

@ -1,8 +1,11 @@
/*
* Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#ifndef __DRIVERS_MCAST_H
#define __DRIVERS_MCAST_H
#include "net_user.h"
struct mcast_data {
@ -18,13 +21,4 @@ extern const struct net_user_info mcast_user_info;
extern int mcast_user_write(int fd, void *buf, int len,
struct mcast_data *pri);
/*
* 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:
*/
#endif

55
arch/um/drivers/mcast_kern.c
View File

@ -1,24 +1,20 @@
/*
* 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
* 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 <linux/netdevice.h>
#include "mcast.h"
#include "net_kern.h"
struct mcast_init {
char *addr;
@ -39,26 +35,23 @@ static void mcast_init(struct net_device *dev, void *data)
dpri->ttl = init->ttl;
dpri->dev = dev;
printk("mcast backend ");
printk("multicast address: %s:%u, TTL:%u ",
printk("mcast backend multicast address: %s:%u, TTL:%u\n",
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_header(*skb),
(*skb)->dev->mtu + ETH_HEADER_OTHER));
if (*skb == NULL)
return -ENOMEM;
return net_recvfrom(fd, skb_mac_header(*skb),
(*skb)->dev->mtu + ETH_HEADER_OTHER);
}
static int mcast_write(int fd, struct sk_buff **skb,
struct uml_net_private *lp)
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);
return mcast_user_write(fd, (*skb)->data, (*skb)->len,
(struct mcast_data *) &lp->user);
}
static const struct net_kern_info mcast_kern_info = {
@ -81,34 +74,34 @@ int mcast_setup(char *str, char **mac_out, void *data)
remain = split_if_spec(str, mac_out, &init->addr, &port_str, &ttl_str,
NULL);
if(remain != NULL){
if (remain != NULL) {
printk(KERN_ERR "mcast_setup - Extra garbage on "
"specification : '%s'\n", remain);
return(0);
return 0;
}
if(port_str != NULL){
if (port_str != NULL) {
init->port = simple_strtoul(port_str, &last, 10);
if((*last != '\0') || (last == port_str)){
printk(KERN_ERR "mcast_setup - Bad port : '%s'\n",
if ((*last != '\0') || (last == port_str)) {
printk(KERN_ERR "mcast_setup - Bad port : '%s'\n",
port_str);
return(0);
return 0;
}
}
if(ttl_str != NULL){
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",
if ((*last != '\0') || (last == ttl_str)) {
printk(KERN_ERR "mcast_setup - Bad ttl : '%s'\n",
ttl_str);
return(0);
return 0;
}
}
printk(KERN_INFO "Configured mcast device: %s:%u-%u\n", init->addr,
init->port, init->ttl);
return(1);
return 1;
}
static struct transport mcast_transport = {

62
arch/um/drivers/mcast_user.c
View File

@ -1,9 +1,10 @@
/*
* user-mode-linux networking multicast transport
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* 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
* 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.
*
@ -11,18 +12,13 @@
*
*/
#include <errno.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/time.h>
#include <errno.h>
#include <netinet/in.h>
#include "net_user.h"
#include "mcast.h"
#include "kern_util.h"
#include "user.h"
#include "os.h"
#include "net_user.h"
#include "um_malloc.h"
#include "user.h"
#define MAX_PACKET (ETH_MAX_PACKET + ETH_HEADER_OTHER)
@ -31,8 +27,9 @@ static struct sockaddr_in *new_addr(char *addr, unsigned short port)
struct sockaddr_in *sin;
sin = kmalloc(sizeof(struct sockaddr_in), UM_GFP_KERNEL);
if(sin == NULL){
printk("new_addr: allocation of sockaddr_in failed\n");
if (sin == NULL) {
printk(UM_KERN_ERR "new_addr: allocation of sockaddr_in "
"failed\n");
return NULL;
}
sin->sin_family = AF_INET;
@ -71,17 +68,17 @@ static int mcast_open(void *data)
fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd < 0){
if (fd < 0) {
err = -errno;
printk("mcast_open : data socket failed, errno = %d\n",
errno);
printk(UM_KERN_ERR "mcast_open : data socket failed, "
"errno = %d\n", errno);
goto out;
}
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0) {
err = -errno;
printk("mcast_open: SO_REUSEADDR failed, errno = %d\n",
errno);
printk(UM_KERN_ERR "mcast_open: SO_REUSEADDR failed, "
"errno = %d\n", errno);
goto out_close;
}
@ -89,45 +86,46 @@ static int mcast_open(void *data)
if (setsockopt(fd, SOL_IP, IP_MULTICAST_TTL, &pri->ttl,
sizeof(pri->ttl)) < 0) {
err = -errno;
printk("mcast_open: IP_MULTICAST_TTL failed, error = %d\n",
errno);
printk(UM_KERN_ERR "mcast_open: IP_MULTICAST_TTL failed, "
"error = %d\n", errno);
goto out_close;
}
/* set LOOP, so data does get fed back to local sockets */
if (setsockopt(fd, SOL_IP, IP_MULTICAST_LOOP, &yes, sizeof(yes)) < 0) {
err = -errno;
printk("mcast_open: IP_MULTICAST_LOOP failed, error = %d\n",
errno);
printk(UM_KERN_ERR "mcast_open: IP_MULTICAST_LOOP failed, "
"error = %d\n", errno);
goto out_close;
}
/* bind socket to mcast address */
if (bind(fd, (struct sockaddr *) sin, sizeof(*sin)) < 0) {
err = -errno;
printk("mcast_open : data bind failed, errno = %d\n", errno);
printk(UM_KERN_ERR "mcast_open : data bind failed, "
"errno = %d\n", errno);
goto out_close;
}
/* subscribe to the multicast group */
mreq.imr_multiaddr.s_addr = sin->sin_addr.s_addr;
mreq.imr_interface.s_addr = 0;
if (setsockopt(fd, SOL_IP, IP_ADD_MEMBERSHIP,
if (setsockopt(fd, SOL_IP, IP_ADD_MEMBERSHIP,
&mreq, sizeof(mreq)) < 0) {
err = -errno;
printk("mcast_open: IP_ADD_MEMBERSHIP failed, error = %d\n",
errno);
printk("There appears not to be a multicast-capable network "
"interface on the host.\n");
printk("eth0 should be configured in order to use the "
"multicast transport.\n");
printk(UM_KERN_ERR "mcast_open: IP_ADD_MEMBERSHIP failed, "
"error = %d\n", errno);
printk(UM_KERN_ERR "There appears not to be a multicast-"
"capable network interface on the host.\n");
printk(UM_KERN_ERR "eth0 should be configured in order to use "
"the multicast transport.\n");
goto out_close;
}
return fd;
out_close:
os_close_file(fd);
close(fd);
out:
return err;
}
@ -142,11 +140,11 @@ static void mcast_close(int fd, void *data)
mreq.imr_interface.s_addr = 0;
if (setsockopt(fd, SOL_IP, IP_DROP_MEMBERSHIP,
&mreq, sizeof(mreq)) < 0) {
printk("mcast_open: IP_DROP_MEMBERSHIP failed, error = %d\n",
errno);
printk(UM_KERN_ERR "mcast_open: IP_DROP_MEMBERSHIP failed, "
"error = %d\n", errno);
}
os_close_file(fd);
close(fd);
}
int mcast_user_write(int fd, void *buf, int len, struct mcast_data *pri)

197
arch/um/drivers/net_kern.c
View File

@ -1,33 +1,28 @@
/*
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* 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/netdevice.h"
#include "linux/rtnetlink.h"
#include "linux/skbuff.h"
#include "linux/socket.h"
#include "linux/spinlock.h"
#include "linux/module.h"
#include "linux/init.h"
#include "linux/etherdevice.h"
#include "linux/list.h"
#include "linux/inetdevice.h"
#include "linux/ctype.h"
#include "linux/bootmem.h"
#include "linux/ethtool.h"
#include "linux/platform_device.h"
#include "asm/uaccess.h"
#include "kern_util.h"
#include <linux/bootmem.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/inetdevice.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/platform_device.h>
#include <linux/rtnetlink.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include "init.h"
#include "irq_kern.h"
#include "irq_user.h"
#include "mconsole_kern.h"
#include "net_kern.h"
#include "net_user.h"
#include "mconsole_kern.h"
#include "init.h"
#include "irq_user.h"
#include "irq_kern.h"
static inline void set_ether_mac(struct net_device *dev, unsigned char *addr)
{
@ -84,12 +79,12 @@ irqreturn_t uml_net_interrupt(int irq, void *dev_id)
struct uml_net_private *lp = dev->priv;
int err;
if(!netif_running(dev))
return(IRQ_NONE);
if (!netif_running(dev))
return IRQ_NONE;
spin_lock(&lp->lock);
while((err = uml_net_rx(dev)) > 0) ;
if(err < 0) {
while ((err = uml_net_rx(dev)) > 0) ;
if (err < 0) {
printk(KERN_ERR
"Device '%s' read returned %d, shutting it down\n",
dev->name, err);
@ -115,20 +110,20 @@ static int uml_net_open(struct net_device *dev)
struct uml_net_private *lp = dev->priv;
int err;
if(lp->fd >= 0){
if (lp->fd >= 0) {
err = -ENXIO;
goto out;
}
lp->fd = (*lp->open)(&lp->user);
if(lp->fd < 0){
if (lp->fd < 0) {
err = lp->fd;
goto out;
}
err = um_request_irq(dev->irq, lp->fd, IRQ_READ, uml_net_interrupt,
IRQF_DISABLED | IRQF_SHARED, dev->name, dev);
if(err != 0){
if (err != 0) {
printk(KERN_ERR "uml_net_open: failed to get irq(%d)\n", err);
err = -ENETUNREACH;
goto out_close;
@ -141,7 +136,7 @@ static int uml_net_open(struct net_device *dev)
* is full when we get here. In this case, new data is never queued,
* SIGIOs never arrive, and the net never works.
*/
while((err = uml_net_rx(dev)) > 0) ;
while ((err = uml_net_rx(dev)) > 0) ;
spin_lock(&opened_lock);
list_add(&lp->list, &opened);
@ -149,7 +144,7 @@ static int uml_net_open(struct net_device *dev)
return 0;
out_close:
if(lp->close != NULL) (*lp->close)(lp->fd, &lp->user);
if (lp->close != NULL) (*lp->close)(lp->fd, &lp->user);
lp->fd = -1;
out:
return err;
@ -162,7 +157,7 @@ static int uml_net_close(struct net_device *dev)
netif_stop_queue(dev);
free_irq(dev->irq, dev);
if(lp->close != NULL)
if (lp->close != NULL)
(*lp->close)(lp->fd, &lp->user);
lp->fd = -1;
@ -185,7 +180,7 @@ static int uml_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
len = (*lp->write)(lp->fd, &skb, lp);
if(len == skb->len) {
if (len == skb->len) {
lp->stats.tx_packets++;
lp->stats.tx_bytes += skb->len;
dev->trans_start = jiffies;
@ -194,7 +189,7 @@ static int uml_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* this is normally done in the interrupt when tx finishes */
netif_wake_queue(dev);
}
else if(len == 0){
else if (len == 0) {
netif_start_queue(dev);
lp->stats.tx_dropped++;
}
@ -218,8 +213,10 @@ static struct net_device_stats *uml_net_get_stats(struct net_device *dev)
static void uml_net_set_multicast_list(struct net_device *dev)
{
if (dev->flags & IFF_PROMISC) return;
else if (dev->mc_count) dev->flags |= IFF_ALLMULTI;
if (dev->flags & IFF_PROMISC)
return;
else if (dev->mc_count)
dev->flags |= IFF_ALLMULTI;
else dev->flags &= ~IFF_ALLMULTI;
}
@ -249,7 +246,7 @@ static int uml_net_change_mtu(struct net_device *dev, int new_mtu)
spin_lock_irq(&lp->lock);
new_mtu = (*lp->set_mtu)(new_mtu, &lp->user);
if(new_mtu < 0){
if (new_mtu < 0) {
err = new_mtu;
goto out;
}
@ -288,13 +285,13 @@ static void setup_etheraddr(char *str, unsigned char *addr, char *name)
char *end;
int i;
if(str == NULL)
if (str == NULL)
goto random;
for(i=0;i<6;i++){
for (i = 0;i < 6; i++) {
addr[i] = simple_strtoul(str, &end, 16);
if((end == str) ||
((*end != ':') && (*end != ',') && (*end != '\0'))){
if ((end == str) ||
((*end != ':') && (*end != ',') && (*end != '\0'))) {
printk(KERN_ERR
"setup_etheraddr: failed to parse '%s' "
"as an ethernet address\n", str);
@ -349,7 +346,7 @@ static void net_device_release(struct device *dev)
struct net_device *netdev = device->dev;
struct uml_net_private *lp = netdev->priv;
if(lp->remove != NULL)
if (lp->remove != NULL)
(*lp->remove)(&lp->user);
list_del(&device->list);
kfree(device);
@ -413,7 +410,7 @@ static void eth_configure(int n, void *init, char *mac,
device->pdev.name = DRIVER_NAME;
device->pdev.dev.release = net_device_release;
device->pdev.dev.driver_data = device;
if(platform_device_register(&device->pdev))
if (platform_device_register(&device->pdev))
goto out_free_netdev;
SET_NETDEV_DEV(dev,&device->pdev.dev);
@ -493,9 +490,9 @@ static struct uml_net *find_device(int n)
struct list_head *ele;
spin_lock(&devices_lock);
list_for_each(ele, &devices){
list_for_each(ele, &devices) {
device = list_entry(ele, struct uml_net, list);
if(device->index == n)
if (device->index == n)
goto out;
}
device = NULL;
@ -511,19 +508,19 @@ static int eth_parse(char *str, int *index_out, char **str_out,
int n, err = -EINVAL;;
n = simple_strtoul(str, &end, 0);
if(end == str){
if (end == str) {
*error_out = "Bad device number";
return err;
}
str = end;
if(*str != '='){
if (*str != '=') {
*error_out = "Expected '=' after device number";
return err;
}
str++;
if(find_device(n)){
if (find_device(n)) {
*error_out = "Device already configured";
return err;
}
@ -551,20 +548,20 @@ static int check_transport(struct transport *transport, char *eth, int n,
int len;
len = strlen(transport->name);
if(strncmp(eth, transport->name, len))
if (strncmp(eth, transport->name, len))
return 0;
eth += len;
if(*eth == ',')
if (*eth == ',')
eth++;
else if(*eth != '\0')
else if (*eth != '\0')
return 0;
*init_out = kmalloc(transport->setup_size, GFP_KERNEL);
if(*init_out == NULL)
if (*init_out == NULL)
return 1;
if(!transport->setup(eth, mac_out, *init_out)){
if (!transport->setup(eth, mac_out, *init_out)) {
kfree(*init_out);
*init_out = NULL;
}
@ -584,13 +581,13 @@ void register_transport(struct transport *new)
list_add(&new->list, &transports);
spin_unlock(&transports_lock);
list_for_each_safe(ele, next, &eth_cmd_line){
list_for_each_safe(ele, next, &eth_cmd_line) {
eth = list_entry(ele, struct eth_init, list);
match = check_transport(new, eth->init, eth->index, &init,
&mac);
if(!match)
if (!match)
continue;
else if(init != NULL){
else if (init != NULL) {
eth_configure(eth->index, init, mac, new);
kfree(init);
}
@ -607,11 +604,11 @@ static int eth_setup_common(char *str, int index)
int found = 0;
spin_lock(&transports_lock);
list_for_each(ele, &transports){
list_for_each(ele, &transports) {
transport = list_entry(ele, struct transport, list);
if(!check_transport(transport, str, index, &init, &mac))
if (!check_transport(transport, str, index, &init, &mac))
continue;
if(init != NULL){
if (init != NULL) {
eth_configure(index, init, mac, transport);
kfree(init);
}
@ -630,15 +627,15 @@ static int __init eth_setup(char *str)
int n, err;
err = eth_parse(str, &n, &str, &error);
if(err){
if (err) {
printk(KERN_ERR "eth_setup - Couldn't parse '%s' : %s\n",
str, error);
return 1;
}
new = alloc_bootmem(sizeof(*new));
if (new == NULL){
printk("eth_init : alloc_bootmem failed\n");
if (new == NULL) {
printk(KERN_ERR "eth_init : alloc_bootmem failed\n");
return 1;
}
@ -661,36 +658,36 @@ static int net_config(char *str, char **error_out)
int n, err;
err = eth_parse(str, &n, &str, error_out);
if(err)
if (err)
return err;
/* This string is broken up and the pieces used by the underlying
* driver. So, it is freed only if eth_setup_common fails.
*/
str = kstrdup(str, GFP_KERNEL);
if(str == NULL){
if (str == NULL) {
*error_out = "net_config failed to strdup string";
return -ENOMEM;
}
err = !eth_setup_common(str, n);
if(err)
if (err)
kfree(str);
return(err);
return err;
}
static int net_id(char **str, int *start_out, int *end_out)
{
char *end;
int n;
char *end;
int n;
n = simple_strtoul(*str, &end, 0);
if((*end != '\0') || (end == *str))
if ((*end != '\0') || (end == *str))
return -1;
*start_out = n;
*end_out = n;
*str = end;
return n;
*start_out = n;
*end_out = n;
*str = end;
return n;
}
static int net_remove(int n, char **error_out)
@ -700,12 +697,12 @@ static int net_remove(int n, char **error_out)
struct uml_net_private *lp;
device = find_device(n);
if(device == NULL)
if (device == NULL)
return -ENODEV;
dev = device->dev;
lp = dev->priv;
if(lp->fd > 0)
if (lp->fd > 0)
return -EBUSY;
unregister_netdev(dev);
platform_device_unregister(&device->pdev);
@ -731,13 +728,13 @@ static int uml_inetaddr_event(struct notifier_block *this, unsigned long event,
void (*proc)(unsigned char *, unsigned char *, void *);
unsigned char addr_buf[4], netmask_buf[4];
if(dev->open != uml_net_open)
if (dev->open != uml_net_open)
return NOTIFY_DONE;
lp = dev->priv;
proc = NULL;
switch (event){
switch (event) {
case NETDEV_UP:
proc = lp->add_address;
break;
@ -745,7 +742,7 @@ static int uml_inetaddr_event(struct notifier_block *this, unsigned long event,
proc = lp->delete_address;
break;
}
if(proc != NULL){
if (proc != NULL) {
memcpy(addr_buf, &ifa->ifa_address, sizeof(addr_buf));
memcpy(netmask_buf, &ifa->ifa_mask, sizeof(netmask_buf));
(*proc)(addr_buf, netmask_buf, &lp->user);
@ -773,13 +770,13 @@ static int uml_net_init(void)
* addresses which have already been set up get handled properly.
*/
spin_lock(&opened_lock);
list_for_each(ele, &opened){
list_for_each(ele, &opened) {
lp = list_entry(ele, struct uml_net_private, list);
ip = lp->dev->ip_ptr;
if(ip == NULL)
if (ip == NULL)
continue;
in = ip->ifa_list;
while(in != NULL){
while (in != NULL) {
uml_inetaddr_event(NULL, NETDEV_UP, in);
in = in->ifa_next;
}
@ -797,12 +794,12 @@ static void close_devices(void)
struct uml_net_private *lp;
spin_lock(&opened_lock);
list_for_each(ele, &opened){
list_for_each(ele, &opened) {
lp = list_entry(ele, struct uml_net_private, list);
free_irq(lp->dev->irq, lp->dev);
if((lp->close != NULL) && (lp->fd >= 0))
if ((lp->close != NULL) && (lp->fd >= 0))
(*lp->close)(lp->fd, &lp->user);
if(lp->remove != NULL)
if (lp->remove != NULL)
(*lp->remove)(&lp->user);
}
spin_unlock(&opened_lock);
@ -812,15 +809,15 @@ __uml_exitcall(close_devices);
struct sk_buff *ether_adjust_skb(struct sk_buff *skb, int extra)
{
if((skb != NULL) && (skb_tailroom(skb) < extra)){
if ((skb != NULL) && (skb_tailroom(skb) < extra)) {
struct sk_buff *skb2;
skb2 = skb_copy_expand(skb, 0, extra, GFP_ATOMIC);
dev_kfree_skb(skb);
skb = skb2;
}
if(skb != NULL) skb_put(skb, extra);
return(skb);
if (skb != NULL) skb_put(skb, extra);
return skb;
}
void iter_addresses(void *d, void (*cb)(unsigned char *, unsigned char *,
@ -832,9 +829,9 @@ void iter_addresses(void *d, void (*cb)(unsigned char *, unsigned char *,
struct in_ifaddr *in;
unsigned char address[4], netmask[4];
if(ip == NULL) return;
if (ip == NULL) return;
in = ip->ifa_list;
while(in != NULL){
while (in != NULL) {
memcpy(address, &in->ifa_address, sizeof(address));
memcpy(netmask, &in->ifa_mask, sizeof(netmask));
(*cb)(address, netmask, arg);
@ -849,15 +846,15 @@ int dev_netmask(void *d, void *m)
struct in_ifaddr *in;
__be32 *mask_out = m;
if(ip == NULL)
return(1);
if (ip == NULL)
return 1;
in = ip->ifa_list;
if(in == NULL)
return(1);
if (in == NULL)
return 1;
*mask_out = in->ifa_mask;
return(0);
return 0;
}
void *get_output_buffer(int *len_out)
@ -865,7 +862,7 @@ void *get_output_buffer(int *len_out)
void *ret;
ret = (void *) __get_free_pages(GFP_KERNEL, 0);
if(ret) *len_out = PAGE_SIZE;
if (ret) *len_out = PAGE_SIZE;
else *len_out = 0;
return ret;
}
@ -881,16 +878,16 @@ int tap_setup_common(char *str, char *type, char **dev_name, char **mac_out,
char *remain;
remain = split_if_spec(str, dev_name, mac_out, gate_addr, NULL);
if(remain != NULL){
printk("tap_setup_common - Extra garbage on specification : "
"'%s'\n", remain);
return(1);
if (remain != NULL) {
printk(KERN_ERR "tap_setup_common - Extra garbage on "
"specification : '%s'\n", remain);
return 1;
}
return(0);
return 0;
}
unsigned short eth_protocol(struct sk_buff *skb)
{
return(eth_type_trans(skb, skb->dev));
return eth_type_trans(skb, skb->dev);
}

126
arch/um/drivers/net_user.c
View File

@ -1,34 +1,32 @@
/*
* Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
/*
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#include <stddef.h>
#include <stdarg.h>
#include <unistd.h>
#include <stdio.h>
#include <unistd.h>
#include <stdarg.h>
#include <errno.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/time.h>
#include "user.h"
#include "kern_util.h"
#include "net_user.h"
#include "kern_constants.h"
#include "os.h"
#include "um_malloc.h"
#include "kern_constants.h"
#include "user.h"
int tap_open_common(void *dev, char *gate_addr)
{
int tap_addr[4];
if(gate_addr == NULL)
if (gate_addr == NULL)
return 0;
if(sscanf(gate_addr, "%d.%d.%d.%d", &tap_addr[0],
&tap_addr[1], &tap_addr[2], &tap_addr[3]) != 4){
printk("Invalid tap IP address - '%s'\n", gate_addr);
if (sscanf(gate_addr, "%d.%d.%d.%d", &tap_addr[0],
&tap_addr[1], &tap_addr[2], &tap_addr[3]) != 4) {
printk(UM_KERN_ERR "Invalid tap IP address - '%s'\n",
gate_addr);
return -EINVAL;
}
return 0;
@ -38,15 +36,15 @@ void tap_check_ips(char *gate_addr, unsigned char *eth_addr)
{
int tap_addr[4];
if((gate_addr != NULL) &&
(sscanf(gate_addr, "%d.%d.%d.%d", &tap_addr[0],
&tap_addr[1], &tap_addr[2], &tap_addr[3]) == 4) &&
(eth_addr[0] == tap_addr[0]) &&
(eth_addr[1] == tap_addr[1]) &&
(eth_addr[2] == tap_addr[2]) &&
(eth_addr[3] == tap_addr[3])){
printk("The tap IP address and the UML eth IP address"
" must be different\n");
if ((gate_addr != NULL) &&
(sscanf(gate_addr, "%d.%d.%d.%d", &tap_addr[0],
&tap_addr[1], &tap_addr[2], &tap_addr[3]) == 4) &&
(eth_addr[0] == tap_addr[0]) &&
(eth_addr[1] == tap_addr[1]) &&
(eth_addr[2] == tap_addr[2]) &&
(eth_addr[3] == tap_addr[3])) {
printk(UM_KERN_ERR "The tap IP address and the UML eth IP "
"address must be different\n");
}
}
@ -57,24 +55,28 @@ void read_output(int fd, char *output, int len)
char c;
char *str;
if(output == NULL){
if (output == NULL) {
output = &c;
len = sizeof(c);
}
*output = '\0';
ret = os_read_file(fd, &remain, sizeof(remain));
ret = read(fd, &remain, sizeof(remain));
if (ret != sizeof(remain)) {
if (ret < 0)
ret = -errno;
expected = sizeof(remain);
str = "length";
goto err;
}
while(remain != 0){
while (remain != 0) {
expected = (remain < len) ? remain : len;
ret = os_read_file(fd, output, expected);
ret = read(fd, output, expected);
if (ret != expected) {
if (ret < 0)
ret = -errno;
str = "data";
goto err;
}
@ -85,20 +87,22 @@ void read_output(int fd, char *output, int len)
err:
if (ret < 0)
printk("read_output - read of %s failed, errno = %d\n", str, -ret);
printk(UM_KERN_ERR "read_output - read of %s failed, "
"errno = %d\n", str, -ret);
else
printk("read_output - read of %s failed, read only %d of %d bytes\n", str, ret, expected);
printk(UM_KERN_ERR "read_output - read of %s failed, read only "
"%d of %d bytes\n", str, ret, expected);
}
int net_read(int fd, void *buf, int len)
{
int n;
n = os_read_file(fd, buf, len);
n = read(fd, buf, len);
if(n == -EAGAIN)
if ((n < 0) && (errno == EAGAIN))
return 0;
else if(n == 0)
else if (n == 0)
return -ENOTCONN;
return n;
}
@ -108,12 +112,12 @@ int net_recvfrom(int fd, void *buf, int len)
int n;
CATCH_EINTR(n = recvfrom(fd, buf, len, 0, NULL, NULL));
if(n < 0){
if(errno == EAGAIN)
if (n < 0) {
if (errno == EAGAIN)
return 0;
return -errno;
}
else if(n == 0)
else if (n == 0)
return -ENOTCONN;
return n;
}
@ -122,11 +126,11 @@ int net_write(int fd, void *buf, int len)
{
int n;
n = os_write_file(fd, buf, len);
n = write(fd, buf, len);
if(n == -EAGAIN)
if ((n < 0) && (errno == EAGAIN))
return 0;
else if(n == 0)
else if (n == 0)
return -ENOTCONN;
return n;
}
@ -136,12 +140,12 @@ int net_send(int fd, void *buf, int len)
int n;
CATCH_EINTR(n = send(fd, buf, len, 0));
if(n < 0){
if(errno == EAGAIN)
if (n < 0) {
if (errno == EAGAIN)
return 0;
return -errno;
}
else if(n == 0)
else if (n == 0)
return -ENOTCONN;
return n;
}
@ -152,12 +156,12 @@ int net_sendto(int fd, void *buf, int len, void *to, int sock_len)
CATCH_EINTR(n = sendto(fd, buf, len, 0, (struct sockaddr *) to,
sock_len));
if(n < 0){
if(errno == EAGAIN)
if (n < 0) {
if (errno == EAGAIN)
return 0;
return -errno;
}
else if(n == 0)
else if (n == 0)
return -ENOTCONN;
return n;
}
@ -171,7 +175,7 @@ static void change_pre_exec(void *arg)
{
struct change_pre_exec_data *data = arg;
os_close_file(data->close_me);
close(data->close_me);
dup2(data->stdout, 1);
}
@ -181,8 +185,9 @@ static int change_tramp(char **argv, char *output, int output_len)
struct change_pre_exec_data pe_data;
err = os_pipe(fds, 1, 0);
if(err < 0){
printk("change_tramp - pipe failed, err = %d\n", -err);
if (err < 0) {
printk(UM_KERN_ERR "change_tramp - pipe failed, err = %d\n",
-err);
return err;
}
pe_data.close_me = fds[0];
@ -192,8 +197,8 @@ static int change_tramp(char **argv, char *output, int output_len)
if (pid > 0) /* Avoid hang as we won't get data in failure case. */
read_output(fds[0], output, output_len);
os_close_file(fds[0]);
os_close_file(fds[1]);
close(fds[0]);
close(fds[1]);
if (pid > 0)
CATCH_EINTR(err = waitpid(pid, NULL, 0));
@ -206,25 +211,26 @@ static void change(char *dev, char *what, unsigned char *addr,
char addr_buf[sizeof("255.255.255.255\0")];
char netmask_buf[sizeof("255.255.255.255\0")];
char version[sizeof("nnnnn\0")];
char *argv[] = { "uml_net", version, what, dev, addr_buf,
char *argv[] = { "uml_net", version, what, dev, addr_buf,
netmask_buf, NULL };
char *output;
int output_len, pid;
sprintf(version, "%d", UML_NET_VERSION);
sprintf(addr_buf, "%d.%d.%d.%d", addr[0], addr[1], addr[2], addr[3]);
sprintf(netmask_buf, "%d.%d.%d.%d", netmask[0], netmask[1],
sprintf(netmask_buf, "%d.%d.%d.%d", netmask[0], netmask[1],
netmask[2], netmask[3]);
output_len = UM_KERN_PAGE_SIZE;
output = kmalloc(output_len, UM_GFP_KERNEL);
if(output == NULL)
printk("change : failed to allocate output buffer\n");
if (output == NULL)
printk(UM_KERN_ERR "change : failed to allocate output "
"buffer\n");
pid = change_tramp(argv, output, output_len);
if(pid < 0) return;
if (pid < 0) return;
if(output != NULL){
if (output != NULL) {
printk("%s", output);
kfree(output);
}
@ -246,13 +252,13 @@ char *split_if_spec(char *str, ...)
va_list ap;
va_start(ap, str);
while((arg = va_arg(ap, char **)) != NULL){
if(*str == '\0')
while ((arg = va_arg(ap, char **)) != NULL) {
if (*str == '\0')
return NULL;
end = strchr(str, ',');
if(end != str)
if (end != str)
*arg = str;
if(end == NULL)
if (end == NULL)
return NULL;
*end++ = '\0';
str = end;

27
arch/um/drivers/pcap_kern.c
View File

@ -1,13 +1,11 @@
/*
* Copyright (C) 2002 Jeff Dike <jdike@karaya.com>
* Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL.
*/
#include "linux/init.h"
#include "linux/netdevice.h"
#include "linux/etherdevice.h"
#include <linux/netdevice.h>
#include "net_kern.h"
#include "net_user.h"
#include "pcap_user.h"
struct pcap_init {
@ -37,7 +35,7 @@ static int pcap_read(int fd, struct sk_buff **skb,
struct uml_net_private *lp)
{
*skb = ether_adjust_skb(*skb, ETH_HEADER_OTHER);
if(*skb == NULL)
if (*skb == NULL)
return -ENOMEM;
return pcap_user_read(fd, skb_mac_header(*skb),
@ -71,28 +69,29 @@ int pcap_setup(char *str, char **mac_out, void *data)
remain = split_if_spec(str, &host_if, &init->filter,
&options[0], &options[1], mac_out, NULL);
if(remain != NULL){
if (remain != NULL) {
printk(KERN_ERR "pcap_setup - Extra garbage on "
"specification : '%s'\n", remain);
return 0;
}
if(host_if != NULL)
if (host_if != NULL)
init->host_if = host_if;
for(i = 0; i < ARRAY_SIZE(options); i++){
if(options[i] == NULL)
for (i = 0; i < ARRAY_SIZE(options); i++) {
if (options[i] == NULL)
continue;
if(!strcmp(options[i], "promisc"))
if (!strcmp(options[i], "promisc"))
init->promisc = 1;
else if(!strcmp(options[i], "nopromisc"))
else if (!strcmp(options[i], "nopromisc"))
init->promisc = 0;
else if(!strcmp(options[i], "optimize"))
else if (!strcmp(options[i], "optimize"))
init->optimize = 1;
else if(!strcmp(options[i], "nooptimize"))
else if (!strcmp(options[i], "nooptimize"))
init->optimize = 0;
else {
printk("pcap_setup : bad option - '%s'\n", options[i]);
printk(KERN_ERR "pcap_setup : bad option - '%s'\n",
options[i]);
return 0;
}
}

49
arch/um/drivers/pcap_user.c
View File

@ -1,19 +1,17 @@
/*
* Copyright (C) 2002 Jeff Dike <jdike@karaya.com>
* Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL.
*/
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <pcap.h>
#include <string.h>
#include <asm/types.h>
#include "net_user.h"
#include "pcap_user.h"
#include "user.h"
#include "um_malloc.h"
#include "kern_constants.h"
#include "um_malloc.h"
#include "user.h"
#define MAX_PACKET (ETH_MAX_PACKET + ETH_HEADER_OTHER)
@ -26,7 +24,7 @@ static int pcap_user_init(void *data, void *dev)
char errors[PCAP_ERRBUF_SIZE];
p = pcap_open_live(pri->host_if, MAX_PACKET, pri->promisc, 0, errors);
if(p == NULL){
if (p == NULL) {
printk(UM_KERN_ERR "pcap_user_init : pcap_open_live failed - "
"'%s'\n", errors);
return -EINVAL;
@ -43,50 +41,55 @@ static int pcap_open(void *data)
__u32 netmask;
int err;
if(pri->pcap == NULL)
if (pri->pcap == NULL)
return -ENODEV;
if(pri->filter != NULL){
if (pri->filter != NULL) {
err = dev_netmask(pri->dev, &netmask);
if(err < 0){
if (err < 0) {
printk(UM_KERN_ERR "pcap_open : dev_netmask failed\n");
return -EIO;
}
pri->compiled = kmalloc(sizeof(struct bpf_program), UM_GFP_KERNEL);
if(pri->compiled == NULL){
pri->compiled = kmalloc(sizeof(struct bpf_program),
UM_GFP_KERNEL);
if (pri->compiled == NULL) {
printk(UM_KERN_ERR "pcap_open : kmalloc failed\n");
return -ENOMEM;
}
err = pcap_compile(pri->pcap,
(struct bpf_program *) pri->compiled,
err = pcap_compile(pri->pcap,
(struct bpf_program *) pri->compiled,
pri->filter, pri->optimize, netmask);
if(err < 0){
if (err < 0) {
printk(UM_KERN_ERR "pcap_open : pcap_compile failed - "
"'%s'\n", pcap_geterr(pri->pcap));
return -EIO;
goto out;
}
err = pcap_setfilter(pri->pcap, pri->compiled);
if(err < 0){
if (err < 0) {
printk(UM_KERN_ERR "pcap_open : pcap_setfilter "
"failed - '%s'\n", pcap_geterr(pri->pcap));
return -EIO;
goto out;
}
}
return PCAP_FD(pri->pcap);
out:
kfree(pri->compiled);
return -EIO;
}
static void pcap_remove(void *data)
{
struct pcap_data *pri = data;
if(pri->compiled != NULL)
if (pri->compiled != NULL)
pcap_freecode(pri->compiled);
if(pri->pcap != NULL)
if (pri->pcap != NULL)
pcap_close(pri->pcap);
}
@ -95,7 +98,7 @@ struct pcap_handler_data {
int len;
};
static void handler(u_char *data, const struct pcap_pkthdr *header,
static void handler(u_char *data, const struct pcap_pkthdr *header,
const u_char *packet)
{
int len;
@ -115,12 +118,12 @@ int pcap_user_read(int fd, void *buffer, int len, struct pcap_data *pri)
int n;
n = pcap_dispatch(pri->pcap, 1, handler, (u_char *) &hdata);
if(n < 0){
if (n < 0) {
printk(UM_KERN_ERR "pcap_dispatch failed - %s\n",
pcap_geterr(pri->pcap));
return -EIO;
}
else if(n == 0)
else if (n == 0)
return 0;
return hdata.len;
}

34
arch/um/drivers/slip_kern.c
View File

@ -1,11 +1,12 @@
#include "linux/kernel.h"
#include "linux/stddef.h"
#include "linux/init.h"
#include "linux/netdevice.h"
#include "linux/if_arp.h"
/*
* Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL.
*/
#include <linux/if_arp.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include "net_kern.h"
#include "net_user.h"
#include "kern.h"
#include "slip.h"
struct slip_init {
@ -43,21 +44,21 @@ void slip_init(struct net_device *dev, void *data)
static unsigned short slip_protocol(struct sk_buff *skbuff)
{
return(htons(ETH_P_IP));
return htons(ETH_P_IP);
}
static int slip_read(int fd, struct sk_buff **skb,
static int slip_read(int fd, struct sk_buff **skb,
struct uml_net_private *lp)
{
return(slip_user_read(fd, skb_mac_header(*skb), (*skb)->dev->mtu,
(struct slip_data *) &lp->user));
return slip_user_read(fd, skb_mac_header(*skb), (*skb)->dev->mtu,
(struct slip_data *) &lp->user);
}
static int slip_write(int fd, struct sk_buff **skb,
struct uml_net_private *lp)
{
return(slip_user_write(fd, (*skb)->data, (*skb)->len,
(struct slip_data *) &lp->user));
return slip_user_write(fd, (*skb)->data, (*skb)->len,
(struct slip_data *) &lp->user);
}
const struct net_kern_info slip_kern_info = {
@ -71,12 +72,11 @@ static int slip_setup(char *str, char **mac_out, void *data)
{
struct slip_init *init = data;
*init = ((struct slip_init)
{ .gate_addr = NULL });
*init = ((struct slip_init) { .gate_addr = NULL });
if(str[0] != '\0')
if (str[0] != '\0')
init->gate_addr = str;
return(1);
return 1;
}
static struct transport slip_transport = {

126
arch/um/drivers/slip_user.c
View File

@ -1,21 +1,22 @@
/*
* Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stddef.h>
#include <sched.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <sys/termios.h>
#include <sys/wait.h>
#include <sys/signal.h>
#include "kern_util.h"
#include "user.h"
#include "net_user.h"
#include "slip.h"
#include "slip_common.h"
#include "os.h"
#include "um_malloc.h"
#include "kern_constants.h"
#include "net_user.h"
#include "os.h"
#include "slip.h"
#include "um_malloc.h"
#include "user.h"
static int slip_user_init(void *data, void *dev)
{
@ -31,8 +32,9 @@ static int set_up_tty(int fd)
struct termios tios;
if (tcgetattr(fd, &tios) < 0) {
printk("could not get initial terminal attributes\n");
return(-1);
printk(UM_KERN_ERR "could not get initial terminal "
"attributes\n");
return -1;
}
tios.c_cflag = CS8 | CREAD | HUPCL | CLOCAL;
@ -48,10 +50,10 @@ static int set_up_tty(int fd)
cfsetispeed(&tios, B38400);
if (tcsetattr(fd, TCSAFLUSH, &tios) < 0) {
printk("failed to set terminal attributes\n");
return(-1);
printk(UM_KERN_ERR "failed to set terminal attributes\n");
return -1;
}
return(0);
return 0;
}
struct slip_pre_exec_data {
@ -64,9 +66,11 @@ static void slip_pre_exec(void *arg)
{
struct slip_pre_exec_data *data = arg;
if(data->stdin >= 0) dup2(data->stdin, 0);
if (data->stdin >= 0)
dup2(data->stdin, 0);
dup2(data->stdout, 1);
if(data->close_me >= 0) os_close_file(data->close_me);
if (data->close_me >= 0)
close(data->close_me);
}
static int slip_tramp(char **argv, int fd)
@ -76,8 +80,9 @@ static int slip_tramp(char **argv, int fd)
int status, pid, fds[2], err, output_len;
err = os_pipe(fds, 1, 0);
if(err < 0){
printk("slip_tramp : pipe failed, err = %d\n", -err);
if (err < 0) {
printk(UM_KERN_ERR "slip_tramp : pipe failed, err = %d\n",
-err);
goto out;
}
@ -86,41 +91,42 @@ static int slip_tramp(char **argv, int fd)
pe_data.stdout = fds[1];
pe_data.close_me = fds[0];
err = run_helper(slip_pre_exec, &pe_data, argv);
if(err < 0)
if (err < 0)
goto out_close;
pid = err;
output_len = UM_KERN_PAGE_SIZE;
output = kmalloc(output_len, UM_GFP_KERNEL);
if(output == NULL){
printk("slip_tramp : failed to allocate output buffer\n");
if (output == NULL) {
printk(UM_KERN_ERR "slip_tramp : failed to allocate output "
"buffer\n");
os_kill_process(pid, 1);
err = -ENOMEM;
goto out_free;
}
os_close_file(fds[1]);
close(fds[1]);
read_output(fds[0], output, output_len);
printk("%s", output);
CATCH_EINTR(err = waitpid(pid, &status, 0));
if(err < 0)
if (err < 0)
err = errno;
else if(!WIFEXITED(status) || (WEXITSTATUS(status) != 0)){
printk("'%s' didn't exit with status 0\n", argv[0]);
else if (!WIFEXITED(status) || (WEXITSTATUS(status) != 0)) {
printk(UM_KERN_ERR "'%s' didn't exit with status 0\n", argv[0]);
err = -EINVAL;
}
else err = 0;
os_close_file(fds[0]);
close(fds[0]);
out_free:
kfree(output);
return err;
out_close:
os_close_file(fds[0]);
os_close_file(fds[1]);
close(fds[0]);
close(fds[1]);
out:
return err;
}
@ -130,60 +136,64 @@ static int slip_open(void *data)
struct slip_data *pri = data;
char version_buf[sizeof("nnnnn\0")];
char gate_buf[sizeof("nnn.nnn.nnn.nnn\0")];
char *argv[] = { "uml_net", version_buf, "slip", "up", gate_buf,
char *argv[] = { "uml_net", version_buf, "slip", "up", gate_buf,
NULL };
int sfd, mfd, err;
err = get_pty();
if(err < 0){
printk("slip-open : Failed to open pty, err = %d\n", -err);
if (err < 0) {
printk(UM_KERN_ERR "slip-open : Failed to open pty, err = %d\n",
-err);
goto out;
}
mfd = err;
err = os_open_file(ptsname(mfd), of_rdwr(OPENFLAGS()), 0);
if(err < 0){
printk("Couldn't open tty for slip line, err = %d\n", -err);
err = open(ptsname(mfd), O_RDWR, 0);
if (err < 0) {
printk(UM_KERN_ERR "Couldn't open tty for slip line, "
"err = %d\n", -err);
goto out_close;
}
sfd = err;
if(set_up_tty(sfd))
if (set_up_tty(sfd))
goto out_close2;
pri->slave = sfd;
pri->slip.pos = 0;
pri->slip.esc = 0;
if(pri->gate_addr != NULL){
if (pri->gate_addr != NULL) {
sprintf(version_buf, "%d", UML_NET_VERSION);
strcpy(gate_buf, pri->gate_addr);
err = slip_tramp(argv, sfd);
if(err < 0){
printk("slip_tramp failed - err = %d\n", -err);
if (err < 0) {
printk(UM_KERN_ERR "slip_tramp failed - err = %d\n",
-err);
goto out_close2;
}
err = os_get_ifname(pri->slave, pri->name);
if(err < 0){
printk("get_ifname failed, err = %d\n", -err);
if (err < 0) {
printk(UM_KERN_ERR "get_ifname failed, err = %d\n",
-err);
goto out_close2;
}
iter_addresses(pri->dev, open_addr, pri->name);
}
else {
err = os_set_slip(sfd);
if(err < 0){
printk("Failed to set slip discipline encapsulation - "
"err = %d\n", -err);
if (err < 0) {
printk(UM_KERN_ERR "Failed to set slip discipline "
"encapsulation - err = %d\n", -err);
goto out_close2;
}
}
return(mfd);
return mfd;
out_close2:
os_close_file(sfd);
close(sfd);
out_close:
os_close_file(mfd);
close(mfd);
out:
return err;
}
@ -192,21 +202,21 @@ static void slip_close(int fd, void *data)
{
struct slip_data *pri = data;
char version_buf[sizeof("nnnnn\0")];
char *argv[] = { "uml_net", version_buf, "slip", "down", pri->name,
char *argv[] = { "uml_net", version_buf, "slip", "down", pri->name,
NULL };
int err;
if(pri->gate_addr != NULL)
if (pri->gate_addr != NULL)
iter_addresses(pri->dev, close_addr, pri->name);
sprintf(version_buf, "%d", UML_NET_VERSION);
err = slip_tramp(argv, pri->slave);
if(err != 0)
printk("slip_tramp failed - errno = %d\n", -err);
os_close_file(fd);
os_close_file(pri->slave);
if (err != 0)
printk(UM_KERN_ERR "slip_tramp failed - errno = %d\n", -err);
close(fd);
close(pri->slave);
pri->slave = -1;
}
@ -222,7 +232,7 @@ int slip_user_write(int fd, void *buf, int len, struct slip_data *pri)
static int slip_set_mtu(int mtu, void *data)
{
return(mtu);
return mtu;
}
static void slip_add_addr(unsigned char *addr, unsigned char *netmask,
@ -230,7 +240,8 @@ static void slip_add_addr(unsigned char *addr, unsigned char *netmask,
{
struct slip_data *pri = data;
if(pri->slave < 0) return;
if (pri->slave < 0)
return;
open_addr(addr, netmask, pri->name);
}
@ -239,7 +250,8 @@ static void slip_del_addr(unsigned char *addr, unsigned char *netmask,
{
struct slip_data *pri = data;
if(pri->slave < 0) return;
if (pri->slave < 0)
return;
close_addr(addr, netmask, pri->name);
}

55
arch/um/drivers/slirp_kern.c
View File

@ -1,11 +1,14 @@
#include "linux/kernel.h"
#include "linux/stddef.h"
/*
* Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL.
*/
#include <linux/if_arp.h>
#include "linux/init.h"
#include "linux/netdevice.h"
#include "linux/if_arp.h"
#include <linux/netdevice.h>
#include <linux/string.h>
#include "net_kern.h"
#include "net_user.h"
#include "kern.h"
#include "slirp.h"
struct slirp_init {
@ -39,29 +42,28 @@ void slirp_init(struct net_device *dev, void *data)
dev->tx_queue_len = 256;
dev->flags = IFF_NOARP;
printk("SLIRP backend - command line:");
for(i=0;spri->argw.argv[i]!=NULL;i++) {
for (i = 0; spri->argw.argv[i] != NULL; i++)
printk(" '%s'",spri->argw.argv[i]);
}
printk("\n");
}
static unsigned short slirp_protocol(struct sk_buff *skbuff)
{
return(htons(ETH_P_IP));
return htons(ETH_P_IP);
}
static int slirp_read(int fd, struct sk_buff **skb,
static int slirp_read(int fd, struct sk_buff **skb,
struct uml_net_private *lp)
{
return(slirp_user_read(fd, skb_mac_header(*skb), (*skb)->dev->mtu,
(struct slirp_data *) &lp->user));
return slirp_user_read(fd, skb_mac_header(*skb), (*skb)->dev->mtu,
(struct slirp_data *) &lp->user);
}
static int slirp_write(int fd, struct sk_buff **skb,
struct uml_net_private *lp)
{
return(slirp_user_write(fd, (*skb)->data, (*skb)->len,
(struct slirp_data *) &lp->user));
return slirp_user_write(fd, (*skb)->data, (*skb)->len,
(struct slirp_data *) &lp->user);
}
const struct net_kern_info slirp_kern_info = {
@ -76,31 +78,32 @@ static int slirp_setup(char *str, char **mac_out, void *data)
struct slirp_init *init = data;
int i=0;
*init = ((struct slirp_init)
{ .argw = { { "slirp", NULL } } });
*init = ((struct slirp_init) { .argw = { { "slirp", NULL } } });
str = split_if_spec(str, mac_out, NULL);
if(str == NULL) { /* no command line given after MAC addr */
return(1);
}
if (str == NULL) /* no command line given after MAC addr */
return 1;
do {
if(i>=SLIRP_MAX_ARGS-1) {
printk("slirp_setup: truncating slirp arguments\n");
if (i >= SLIRP_MAX_ARGS - 1) {
printk(KERN_WARNING "slirp_setup: truncating slirp "
"arguments\n");
break;
}
init->argw.argv[i++] = str;
while(*str && *str!=',') {
if(*str=='_') *str=' ';
if (*str == '_')
*str=' ';
str++;
}
if(*str!=',')
if (*str != ',')
break;
*str++='\0';
} while(1);
init->argw.argv[i]=NULL;
return(1);
*str++ = '\0';
} while (1);
init->argw.argv[i] = NULL;
return 1;
}
static struct transport slirp_transport = {

67
arch/um/drivers/slirp_user.c
View File

@ -1,18 +1,17 @@
#include <stdio.h>
#include <stdlib.h>
/*
* Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL.
*/
#include <unistd.h>
#include <stddef.h>
#include <sched.h>
#include <string.h>
#include <errno.h>
#include <string.h>
#include <sys/wait.h>
#include <sys/signal.h>
#include "kern_util.h"
#include "user.h"
#include "kern_constants.h"
#include "net_user.h"
#include "slirp.h"
#include "slip_common.h"
#include "os.h"
#include "slirp.h"
#include "user.h"
static int slirp_user_init(void *data, void *dev)
{
@ -31,8 +30,10 @@ static void slirp_pre_exec(void *arg)
{
struct slirp_pre_exec_data *data = arg;
if(data->stdin != -1) dup2(data->stdin, 0);
if(data->stdout != -1) dup2(data->stdout, 1);
if (data->stdin != -1)
dup2(data->stdin, 0);
if (data->stdout != -1)
dup2(data->stdout, 1);
}
static int slirp_tramp(char **argv, int fd)
@ -44,7 +45,7 @@ static int slirp_tramp(char **argv, int fd)
pe_data.stdout = fd;
pid = run_helper(slirp_pre_exec, &pe_data, argv);
return(pid);
return pid;
}
static int slirp_open(void *data)
@ -53,12 +54,12 @@ static int slirp_open(void *data)
int fds[2], pid, err;
err = os_pipe(fds, 1, 1);
if(err)
return(err);
if (err)
return err;
err = slirp_tramp(pri->argw.argv, fds[1]);
if(err < 0){
printk("slirp_tramp failed - errno = %d\n", -err);
if (err < 0) {
printk(UM_KERN_ERR "slirp_tramp failed - errno = %d\n", -err);
goto out;
}
pid = err;
@ -68,10 +69,10 @@ static int slirp_open(void *data)
pri->slip.esc = 0;
pri->pid = err;
return(fds[0]);
return fds[0];
out:
os_close_file(fds[0]);
os_close_file(fds[1]);
close(fds[0]);
close(fds[1]);
return err;
}
@ -80,31 +81,33 @@ static void slirp_close(int fd, void *data)
struct slirp_data *pri = data;
int status,err;
os_close_file(fd);
os_close_file(pri->slave);
close(fd);
close(pri->slave);
pri->slave = -1;
if(pri->pid<1) {
printk("slirp_close: no child process to shut down\n");
if (pri->pid<1) {
printk(UM_KERN_ERR "slirp_close: no child process to shut "
"down\n");
return;
}
#if 0
if(kill(pri->pid, SIGHUP)<0) {
printk("slirp_close: sending hangup to %d failed (%d)\n",
pri->pid, errno);
if (kill(pri->pid, SIGHUP)<0) {
printk(UM_KERN_ERR "slirp_close: sending hangup to %d failed "
"(%d)\n", pri->pid, errno);
}
#endif
CATCH_EINTR(err = waitpid(pri->pid, &status, WNOHANG));
if(err < 0) {
printk("slirp_close: waitpid returned %d\n", errno);
if (err < 0) {
printk(UM_KERN_ERR "slirp_close: waitpid returned %d\n", errno);
return;
}
if(err == 0) {
printk("slirp_close: process %d has not exited\n", pri->pid);
if (err == 0) {
printk(UM_KERN_ERR "slirp_close: process %d has not exited\n",
pri->pid);
return;
}
@ -123,7 +126,7 @@ int slirp_user_write(int fd, void *buf, int len, struct slirp_data *pri)
static int slirp_set_mtu(int mtu, void *data)
{
return(mtu);
return mtu;
}
const struct net_user_info slirp_user_info = {

8
arch/um/drivers/vde_kern.c
View File

@ -7,10 +7,8 @@
*
*/
#include "linux/kernel.h"
#include "linux/init.h"
#include "linux/netdevice.h"
#include "linux/etherdevice.h"
#include <linux/netdevice.h>
#include "net_kern.h"
#include "net_user.h"
#include "vde.h"
@ -30,12 +28,12 @@ static void vde_init(struct net_device *dev, void *data)
vpri->conn = NULL;
vpri->dev = dev;
printk(KERN_INFO "vde backend - %s, ", vpri->vde_switch ?
printk("vde backend - %s, ", vpri->vde_switch ?
vpri->vde_switch : "(default socket)");
vde_init_libstuff(vpri, init);
printk(KERN_INFO "\n");
printk("\n");
}
static int vde_read(int fd, struct sk_buff **skb, struct uml_net_private *lp)

8
arch/um/drivers/vde_user.c
View File

@ -3,15 +3,13 @@
* Licensed under the GPL.
*/
#include <stddef.h>
#include <errno.h>
#include <unistd.h>
#include <libvdeplug.h>
#include "net_user.h"
#include "kern_util.h"
#include "kern_constants.h"
#include "user.h"
#include "os.h"
#include "net_user.h"
#include "um_malloc.h"
#include "user.h"
#include "vde.h"
#define MAX_PACKET (ETH_MAX_PACKET + ETH_HEADER_OTHER)

16
arch/um/os-Linux/drivers/etap.h
View File

@ -1,8 +1,11 @@
/*
* Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#ifndef __DRIVERS_ETAP_H
#define __DRIVERS_ETAP_H
#include "net_user.h"
struct ethertap_data {
@ -15,13 +18,4 @@ struct ethertap_data {
extern const struct net_user_info ethertap_user_info;
/*
* 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:
*/
#endif

36
arch/um/os-Linux/drivers/ethertap_kern.c
View File

@ -1,16 +1,15 @@
/*
* Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
* Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
* James Leu (jleu@mindspring.net).
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Copyright (C) 2001 by various other people who didn't put their name here.
* Licensed under the GPL.
*/
#include "linux/init.h"
#include "linux/netdevice.h"
#include "linux/etherdevice.h"
#include "net_kern.h"
#include "net_user.h"
#include <linux/netdevice.h>
#include "etap.h"
#include "net_kern.h"
struct ethertap_init {
char *dev_name;
@ -42,27 +41,30 @@ static int etap_read(int fd, struct sk_buff **skb, struct uml_net_private *lp)
int len;
*skb = ether_adjust_skb(*skb, ETH_HEADER_ETHERTAP);
if(*skb == NULL) return(-ENOMEM);
if (*skb == NULL)
return -ENOMEM;
len = net_recvfrom(fd, skb_mac_header(*skb),
(*skb)->dev->mtu + 2 * ETH_HEADER_ETHERTAP);
if(len <= 0) return(len);
if (len <= 0)
return len;
skb_pull(*skb, 2);
len -= 2;
return(len);
return len;
}
static int etap_write(int fd, struct sk_buff **skb, struct uml_net_private *lp)
{
if(skb_headroom(*skb) < 2){
if (skb_headroom(*skb) < 2) {
struct sk_buff *skb2;
skb2 = skb_realloc_headroom(*skb, 2);
dev_kfree_skb(*skb);
if (skb2 == NULL) return(-ENOMEM);
if (skb2 == NULL)
return -ENOMEM;
*skb = skb2;
}
skb_push(*skb, 2);
return(net_send(fd, (*skb)->data, (*skb)->len));
return net_send(fd, (*skb)->data, (*skb)->len);
}
const struct net_kern_info ethertap_kern_info = {
@ -79,15 +81,15 @@ int ethertap_setup(char *str, char **mac_out, void *data)
*init = ((struct ethertap_init)
{ .dev_name = NULL,
.gate_addr = NULL });
if(tap_setup_common(str, "ethertap", &init->dev_name, mac_out,
if (tap_setup_common(str, "ethertap", &init->dev_name, mac_out,
&init->gate_addr))
return(0);
if(init->dev_name == NULL){
printk("ethertap_setup : Missing tap device name\n");
return(0);
return 0;
if (init->dev_name == NULL) {
printk(KERN_ERR "ethertap_setup : Missing tap device name\n");
return 0;
}
return(1);
return 1;
}
static struct transport ethertap_transport = {

88
arch/um/os-Linux/drivers/ethertap_user.c
View File

@ -1,4 +1,5 @@
/*
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* 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.
@ -7,20 +8,16 @@
#include <stdio.h>
#include <unistd.h>
#include <stddef.h>
#include <stdlib.h>
#include <sys/errno.h>
#include <errno.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/un.h>
#include <net/if.h>
#include "user.h"
#include "kern_util.h"
#include "net_user.h"
#include "etap.h"
#include "os.h"
#include "um_malloc.h"
#include "kern_constants.h"
#include "os.h"
#include "net_user.h"
#include "um_malloc.h"
#include "user.h"
#define MAX_PACKET ETH_MAX_PACKET
@ -49,16 +46,18 @@ static void etap_change(int op, unsigned char *addr, unsigned char *netmask,
memcpy(change.addr, addr, sizeof(change.addr));
memcpy(change.netmask, netmask, sizeof(change.netmask));
CATCH_EINTR(n = write(fd, &change, sizeof(change)));
if(n != sizeof(change)){
printk("etap_change - request failed, err = %d\n", errno);
if (n != sizeof(change)) {
printk(UM_KERN_ERR "etap_change - request failed, err = %d\n",
errno);
return;
}
output = kmalloc(UM_KERN_PAGE_SIZE, UM_GFP_KERNEL);
if(output == NULL)
printk("etap_change : Failed to allocate output buffer\n");
if (output == NULL)
printk(UM_KERN_ERR "etap_change : Failed to allocate output "
"buffer\n");
read_output(fd, output, UM_KERN_PAGE_SIZE);
if(output != NULL){
if (output != NULL) {
printk("%s", output);
kfree(output);
}
@ -107,7 +106,7 @@ static int etap_tramp(char *dev, char *gate, int control_me,
sprintf(data_fd_buf, "%d", data_remote);
sprintf(version_buf, "%d", UML_NET_VERSION);
if(gate != NULL){
if (gate != NULL) {
strcpy(gate_buf, gate);
args = setup_args;
}
@ -119,24 +118,26 @@ static int etap_tramp(char *dev, char *gate, int control_me,
pe_data.data_me = data_me;
pid = run_helper(etap_pre_exec, &pe_data, args);
if(pid < 0)
if (pid < 0)
err = pid;
close(data_remote);
close(control_remote);
CATCH_EINTR(n = read(control_me, &c, sizeof(c)));
if(n != sizeof(c)){
if (n != sizeof(c)) {
err = -errno;
printk("etap_tramp : read of status failed, err = %d\n", -err);
printk(UM_KERN_ERR "etap_tramp : read of status failed, "
"err = %d\n", -err);
return err;
}
if(c != 1){
printk("etap_tramp : uml_net failed\n");
if (c != 1) {
printk(UM_KERN_ERR "etap_tramp : uml_net failed\n");
err = -EINVAL;
CATCH_EINTR(n = waitpid(pid, &status, 0));
if(n < 0)
if (n < 0)
err = -errno;
else if(!WIFEXITED(status) || (WEXITSTATUS(status) != 1))
printk("uml_net didn't exit with status 1\n");
else if (!WIFEXITED(status) || (WEXITSTATUS(status) != 1))
printk(UM_KERN_ERR "uml_net didn't exit with "
"status 1\n");
}
return err;
}
@ -148,22 +149,22 @@ static int etap_open(void *data)
int data_fds[2], control_fds[2], err, output_len;
err = tap_open_common(pri->dev, pri->gate_addr);
if(err)
if (err)
return err;
err = socketpair(AF_UNIX, SOCK_DGRAM, 0, data_fds);
if(err){
if (err) {
err = -errno;
printk("etap_open - data socketpair failed - err = %d\n",
errno);
printk(UM_KERN_ERR "etap_open - data socketpair failed - "
"err = %d\n", errno);
return err;
}
err = socketpair(AF_UNIX, SOCK_STREAM, 0, control_fds);
if(err){
if (err) {
err = -errno;
printk("etap_open - control socketpair failed - err = %d\n",
errno);
printk(UM_KERN_ERR "etap_open - control socketpair failed - "
"err = %d\n", errno);
goto out_close_data;
}
@ -173,15 +174,16 @@ static int etap_open(void *data)
output = kmalloc(output_len, UM_GFP_KERNEL);
read_output(control_fds[0], output, output_len);
if(output == NULL)
printk("etap_open : failed to allocate output buffer\n");
if (output == NULL)
printk(UM_KERN_ERR "etap_open : failed to allocate output "
"buffer\n");
else {
printk("%s", output);
kfree(output);
}
if(err < 0){
printk("etap_tramp failed - err = %d\n", -err);
if (err < 0) {
printk(UM_KERN_ERR "etap_tramp failed - err = %d\n", -err);
goto out_close_control;
}
@ -206,14 +208,14 @@ static void etap_close(int fd, void *data)
iter_addresses(pri->dev, etap_close_addr, &pri->control_fd);
close(fd);
if(shutdown(pri->data_fd, SHUT_RDWR) < 0)
printk("etap_close - shutdown data socket failed, errno = %d\n",
errno);
if(shutdown(pri->control_fd, SHUT_RDWR) < 0)
printk("etap_close - shutdown control socket failed, "
if (shutdown(pri->data_fd, SHUT_RDWR) < 0)
printk(UM_KERN_ERR "etap_close - shutdown data socket failed, "
"errno = %d\n", errno);
if (shutdown(pri->control_fd, SHUT_RDWR) < 0)
printk(UM_KERN_ERR "etap_close - shutdown control socket "
"failed, errno = %d\n", errno);
close(pri->data_fd);
pri->data_fd = -1;
close(pri->control_fd);
@ -231,7 +233,7 @@ static void etap_add_addr(unsigned char *addr, unsigned char *netmask,
struct ethertap_data *pri = data;
tap_check_ips(pri->gate_addr, addr);
if(pri->control_fd == -1)
if (pri->control_fd == -1)
return;
etap_open_addr(addr, netmask, &pri->control_fd);
}
@ -241,7 +243,7 @@ static void etap_del_addr(unsigned char *addr, unsigned char *netmask,
{
struct ethertap_data *pri = data;
if(pri->control_fd == -1)
if (pri->control_fd == -1)
return;
etap_close_addr(addr, netmask, &pri->control_fd);

13
arch/um/os-Linux/drivers/tuntap.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
@ -19,14 +19,3 @@ struct tuntap_data {
extern const struct net_user_info tuntap_user_info;
#endif
/*
* 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:
*/

34
arch/um/os-Linux/drivers/tuntap_kern.c
View File

@ -1,16 +1,13 @@
/*
* Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
/*
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#include "linux/stddef.h"
#include "linux/netdevice.h"
#include "linux/etherdevice.h"
#include "linux/skbuff.h"
#include "linux/init.h"
#include "asm/errno.h"
#include <linux/netdevice.h>
#include <linux/init.h>
#include <linux/skbuff.h>
#include <asm/errno.h>
#include "net_kern.h"
#include "net_user.h"
#include "tuntap.h"
struct tuntap_init {
@ -38,19 +35,20 @@ static void tuntap_init(struct net_device *dev, void *data)
printk("\n");
}
static int tuntap_read(int fd, struct sk_buff **skb,
static int tuntap_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_read(fd, skb_mac_header(*skb),
(*skb)->dev->mtu + ETH_HEADER_OTHER));
if (*skb == NULL)
return -ENOMEM;
return net_read(fd, skb_mac_header(*skb),
(*skb)->dev->mtu + ETH_HEADER_OTHER);
}
static int tuntap_write(int fd, struct sk_buff **skb,
static int tuntap_write(int fd, struct sk_buff **skb,
struct uml_net_private *lp)
{
return(net_write(fd, (*skb)->data, (*skb)->len));
return net_write(fd, (*skb)->data, (*skb)->len);
}
const struct net_kern_info tuntap_kern_info = {
@ -67,11 +65,11 @@ int tuntap_setup(char *str, char **mac_out, void *data)
*init = ((struct tuntap_init)
{ .dev_name = NULL,
.gate_addr = NULL });
if(tap_setup_common(str, "tuntap", &init->dev_name, mac_out,
if (tap_setup_common(str, "tuntap", &init->dev_name, mac_out,
&init->gate_addr))
return(0);
return 0;
return(1);
return 1;
}
static struct transport tuntap_transport = {

79
arch/um/os-Linux/drivers/tuntap_user.c
View File

@ -1,25 +1,22 @@
/*
* Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/uio.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <string.h>
#include <linux/if_tun.h>
#include "net_user.h"
#include "tuntap.h"
#include "kern_util.h"
#include "user.h"
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/uio.h>
#include "kern_constants.h"
#include "os.h"
#include "tuntap.h"
#include "user.h"
#define MAX_PACKET ETH_MAX_PACKET
@ -37,7 +34,7 @@ static void tuntap_add_addr(unsigned char *addr, unsigned char *netmask,
struct tuntap_data *pri = data;
tap_check_ips(pri->gate_addr, addr);
if((pri->fd == -1) || pri->fixed_config)
if ((pri->fd == -1) || pri->fixed_config)
return;
open_addr(addr, netmask, pri->dev_name);
}
@ -47,7 +44,7 @@ static void tuntap_del_addr(unsigned char *addr, unsigned char *netmask,
{
struct tuntap_data *pri = data;
if((pri->fd == -1) || pri->fixed_config)
if ((pri->fd == -1) || pri->fixed_config)
return;
close_addr(addr, netmask, pri->dev_name);
}
@ -85,14 +82,14 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote,
pid = run_helper(tuntap_pre_exec, &data, argv);
if(pid < 0)
if (pid < 0)
return -pid;
close(remote);
msg.msg_name = NULL;
msg.msg_namelen = 0;
if(buffer != NULL){
if (buffer != NULL) {
iov = ((struct iovec) { buffer, buffer_len });
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
@ -106,22 +103,24 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote,
msg.msg_flags = 0;
n = recvmsg(me, &msg, 0);
*used_out = n;
if(n < 0){
if (n < 0) {
err = -errno;
printk("tuntap_open_tramp : recvmsg failed - errno = %d\n",
errno);
printk(UM_KERN_ERR "tuntap_open_tramp : recvmsg failed - "
"errno = %d\n", errno);
return err;
}
CATCH_EINTR(waitpid(pid, NULL, 0));
cmsg = CMSG_FIRSTHDR(&msg);
if(cmsg == NULL){
printk("tuntap_open_tramp : didn't receive a message\n");
if (cmsg == NULL) {
printk(UM_KERN_ERR "tuntap_open_tramp : didn't receive a "
"message\n");
return -EINVAL;
}
if((cmsg->cmsg_level != SOL_SOCKET) ||
(cmsg->cmsg_type != SCM_RIGHTS)){
printk("tuntap_open_tramp : didn't receive a descriptor\n");
if ((cmsg->cmsg_level != SOL_SOCKET) ||
(cmsg->cmsg_type != SCM_RIGHTS)) {
printk(UM_KERN_ERR "tuntap_open_tramp : didn't receive a "
"descriptor\n");
return -EINVAL;
}
*fd_out = ((int *) CMSG_DATA(cmsg))[0];
@ -137,38 +136,39 @@ static int tuntap_open(void *data)
int err, fds[2], len, used;
err = tap_open_common(pri->dev, pri->gate_addr);
if(err < 0)
if (err < 0)
return err;
if(pri->fixed_config){
if (pri->fixed_config) {
pri->fd = os_open_file("/dev/net/tun",
of_cloexec(of_rdwr(OPENFLAGS())), 0);
if(pri->fd < 0){
printk("Failed to open /dev/net/tun, err = %d\n",
-pri->fd);
if (pri->fd < 0) {
printk(UM_KERN_ERR "Failed to open /dev/net/tun, "
"err = %d\n", -pri->fd);
return pri->fd;
}
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
strlcpy(ifr.ifr_name, pri->dev_name, sizeof(ifr.ifr_name));
if(ioctl(pri->fd, TUNSETIFF, (void *) &ifr) < 0){
if (ioctl(pri->fd, TUNSETIFF, (void *) &ifr) < 0) {
err = -errno;
printk("TUNSETIFF failed, errno = %d\n", errno);
printk(UM_KERN_ERR "TUNSETIFF failed, errno = %d\n",
errno);
close(pri->fd);
return err;
}
}
else {
err = socketpair(AF_UNIX, SOCK_DGRAM, 0, fds);
if(err){
if (err) {
err = -errno;
printk("tuntap_open : socketpair failed - errno = %d\n",
errno);
printk(UM_KERN_ERR "tuntap_open : socketpair failed - "
"errno = %d\n", errno);
return err;
}
buffer = get_output_buffer(&len);
if(buffer != NULL)
if (buffer != NULL)
len--;
used = 0;
@ -176,10 +176,11 @@ static int tuntap_open(void *data)
fds[1], buffer, len, &used);
output = buffer;
if(err < 0) {
if (err < 0) {
printk("%s", output);
free_output_buffer(buffer);
printk("tuntap_open_tramp failed - err = %d\n", -err);
printk(UM_KERN_ERR "tuntap_open_tramp failed - "
"err = %d\n", -err);
return err;
}
@ -199,7 +200,7 @@ static void tuntap_close(int fd, void *data)
{
struct tuntap_data *pri = data;
if(!pri->fixed_config)
if (!pri->fixed_config)
iter_addresses(pri->dev, close_addr, pri->dev_name);
close(fd);
pri->fd = -1;