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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
Download Patch File Download Diff File Expand all files Collapse all files

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;