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Move LXC veth.c code into shared utility APIs

Browse Source 
Move the virNetDevSetName and virNetDevSetNamespace APIs out
of LXC's veth.c and into virnetdev.c.

Move the remaining content of the file to src/util/virnetdevveth.c

* src/lxc/veth.c: Rename to src/util/virnetdevveth.c
* src/lxc/veth.h: Rename to src/util/virnetdevveth.h
* src/util/virnetdev.c, src/util/virnetdev.h: Add
  virNetDevSetName and virNetDevSetNamespace
* src/lxc/lxc_container.c, src/lxc/lxc_controller.c,
  src/lxc/lxc_driver.c: Update include paths
This commit is contained in:
Daniel P. Berrange 2011-11-02 16:03:09 +00:00
parent 29b242ad80
commit 428cffb1e7
9 changed files with 144 additions and 114 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/Makefile.am
View File

@ -96,6 +96,7 @@ UTIL_SOURCES = \
util/virnetdevbandwidth.h util/virnetdevbandwidth.c \
util/virnetdevbridge.h util/virnetdevbridge.c \
util/virnetdevtap.h util/virnetdevtap.c \
util/virnetdevveth.h util/virnetdevveth.c \
util/virnetdevvportprofile.h util/virnetdevvportprofile.c \
util/virsocketaddr.h util/virsocketaddr.c
@ -320,14 +321,12 @@ endif
LXC_DRIVER_SOURCES = \
lxc/lxc_conf.c lxc/lxc_conf.h \
lxc/lxc_container.c lxc/lxc_container.h \
lxc/lxc_driver.c lxc/lxc_driver.h \
lxc/veth.c lxc/veth.h
lxc/lxc_driver.c lxc/lxc_driver.h
LXC_CONTROLLER_SOURCES = \
lxc/lxc_conf.c lxc/lxc_conf.h \
lxc/lxc_container.c lxc/lxc_container.h \
lxc/lxc_controller.c \
lxc/veth.c lxc/veth.h
lxc/lxc_controller.c
SECURITY_DRIVER_APPARMOR_HELPER_SOURCES = \
security/virt-aa-helper.c

2
src/lxc/lxc_container.c
View File

@ -55,7 +55,7 @@
#include "lxc_container.h"
#include "util.h"
#include "memory.h"
#include "veth.h"
#include "virnetdevveth.h"
#include "uuid.h"
#include "virfile.h"
#include "command.h"

3
src/lxc/lxc_controller.c
View File

@ -54,7 +54,8 @@
#include "lxc_conf.h"
#include "lxc_container.h"
#include "veth.h"
#include "virnetdev.h"
#include "virnetdevveth.h"
#include "memory.h"
#include "util.h"
#include "virfile.h"

2
src/lxc/lxc_driver.c
View File

@ -44,7 +44,7 @@
#include "memory.h"
#include "util.h"
#include "virnetdevbridge.h"
#include "veth.h"
#include "virnetdevveth.h"
#include "nodeinfo.h"
#include "uuid.h"
#include "stats_linux.h"

29
src/lxc/veth.h
View File

@ -1,29 +0,0 @@
/*
* veth.h: Interface to tools for managing veth pairs
*
* Copyright (C) 2010 Red Hat, Inc.
* Copyright IBM Corp. 2008
*
* See COPYING.LIB for the License of this software
*
* Authors:
* David L. Leskovec <dlesko at linux.vnet.ibm.com>
*/
#ifndef VETH_H
# define VETH_H
# include <config.h>
# include "internal.h"
/* Function declarations */
int virNetDevVethCreate(char **veth1, char **veth2)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
int virNetDevVethDelete(const char *veth)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetDevSetNamespace(const char *ifname, int pidInNs)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetDevSetName(const char *ifname, const char *newifname)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
#endif /* VETH_H */

81
src/util/virnetdev.c
View File

@ -332,6 +332,87 @@ int virNetDevSetMTUFromDevice(const char *ifname,
}
/**
* virNetDevSetNamespace:
* @ifname: name of device
* @pidInNs: PID of process in target net namespace
*
* Moves the given device into the target net namespace specified by the given
* pid using this command:
* ip link set @iface netns @pidInNs
*
* Returns 0 on success or -1 in case of error
*/
int virNetDevSetNamespace(const char *ifname, int pidInNs)
{
int rc;
char *pid = NULL;
const char *argv[] = {
"ip", "link", "set", ifname, "netns", NULL, NULL
};
if (virAsprintf(&pid, "%d", pidInNs) == -1) {
virReportOOMError();
return -1;
}
argv[5] = pid;
rc = virRun(argv, NULL);
VIR_FREE(pid);
return rc;
}
#ifdef SIOCSIFNAME
/**
* virNetDevSetName:
* @ifname: name of device
* @newifname: new name of @ifname
*
* Changes the name of the given device.
*
* Returns 0 on success, -1 on error
*/
int virNetDevSetName(const char* ifname, const char *newifname)
{
int fd = -1;
int ret = -1;
struct ifreq ifr;
if ((fd = virNetDevSetupControl(ifname, &ifr)) < 0)
return -1;
if (virStrcpyStatic(ifr.ifr_newname, newifname) == NULL) {
virReportSystemError(ERANGE,
_("Network interface name '%s' is too long"),
newifname);
goto cleanup;
}
if (ioctl(fd, SIOCSIFNAME, &ifr)) {
virReportSystemError(errno,
_("Unable to rename '%s' to '%s'"),
ifname, newifname);
goto cleanup;
}
ret = 0;
cleanup:
VIR_FORCE_CLOSE(fd);
return ret;
}
#else
int virNetDevSetName(const char* ifname, const char *newifname)
{
virReportSystemError(ENOSYS,
_("Cannot rename interface '%s' to '%s' on this platform"),
ifname, newifname);
return -1;
}
#endif
#ifdef SIOCSIFFLAGS
/**
* virNetDevSetOnline:

4
src/util/virnetdev.h
View File

@ -59,5 +59,9 @@ int virNetDevSetMTUFromDevice(const char *ifname,
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
int virNetDevGetMTU(const char *ifname)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetDevSetNamespace(const char *ifname, int pidInNs)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetDevSetName(const char *ifname, const char *newifname)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
#endif /* __VIR_NETDEV_H__ */

95
src/lxc/veth.c → src/util/virnetdevveth.c
View File

@ -1,32 +1,35 @@
/*
* veth.c: Tools for managing veth pairs
*
* Copyright (C) 2010-2011 Red Hat, Inc.
* Copyright IBM Corp. 2008
*
* See COPYING.LIB for the License of this software
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Authors:
* David L. Leskovec <dlesko at linux.vnet.ibm.com>
* David L. Leskovec <dlesko at linux.vnet.ibm.com>
* Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include <linux/sockios.h>
#include <net/if.h>
#include <string.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "veth.h"
#include "internal.h"
#include "logging.h"
#include "virnetdevveth.h"
#include "memory.h"
#include "logging.h"
#include "command.h"
#include "virterror_internal.h"
#include "virfile.h"
#define VIR_FROM_THIS VIR_FROM_NONE
@ -184,67 +187,3 @@ int virNetDevVethDelete(const char *veth)
return rc;
}
/**
* virNetDevSetNamespace:
* @ifname: name of device
* @pidInNs: PID of process in target net namespace
*
* Moves the given device into the target net namespace specified by the given
* pid using this command:
* ip link set @iface netns @pidInNs
*
* Returns 0 on success or -1 in case of error
*/
int virNetDevSetNamespace(const char* ifname, int pidInNs)
{
int rc;
char *pid = NULL;
const char *argv[] = {
"ip", "link", "set", ifname, "netns", NULL, NULL
};
if (virAsprintf(&pid, "%d", pidInNs) == -1) {
virReportOOMError();
return -1;
}
argv[5] = pid;
rc = virRun(argv, NULL);
VIR_FREE(pid);
return rc;
}
/**
* virNetDevSetName:
* @ifname: name of device
* @new: new name of @ifname
*
* Changes the name of the given device.
*
* Returns 0 on success, -1 on failure with errno set.
*/
int virNetDevSetName(const char* ifname, const char* new)
{
struct ifreq ifr;
int fd = socket(PF_PACKET, SOCK_DGRAM, 0);
memset(&ifr, 0, sizeof(struct ifreq));
if (virStrcpyStatic(ifr.ifr_name, ifname) == NULL) {
errno = EINVAL;
return -1;
}
if (virStrcpyStatic(ifr.ifr_newname, new) == NULL) {
errno = EINVAL;
return -1;
}
if (ioctl(fd, SIOCSIFNAME, &ifr))
return -1;
return 0;
}

35
src/util/virnetdevveth.h Normal file
View File

@ -0,0 +1,35 @@
/*
* Copyright (C) 2010-2011 Red Hat, Inc.
* Copyright IBM Corp. 2008
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Authors:
* David L. Leskovec <dlesko at linux.vnet.ibm.com>
* Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef __VIR_NETDEV_VETH_H__
# define __VIR_NETDEV_VETH_H__
# include "internal.h"
/* Function declarations */
int virNetDevVethCreate(char **veth1, char **veth2)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
int virNetDevVethDelete(const char *veth)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
#endif /* __VIR_NETDEV_VETH_H__ */