[libvirt] [PATCH 14/33] Rename the LXC veth management APIs and delete duplicated APIs
Daniel P. Berrange
berrange at redhat.com
Thu Nov 3 17:30:10 UTC 2011
From: "Daniel P. Berrange" <berrange at redhat.com>
The src/lxc/veth.c file contains APIs for managing veth devices,
but some of the APIs duplicate stuff from src/util/virnetdev.h.
Delete thed duplicate APIs and rename the remaining ones to
follow virNetDevVethXXXX
* src/lxc/veth.c, src/lxc/veth.h: Rename APIs & delete duplicates
* src/lxc/lxc_container.c, src/lxc/lxc_controller.c,
src/lxc/lxc_driver.c: Update for API renaming
---
po/POTFILES.in | 1 -
src/lxc/lxc_container.c | 7 ++-
src/lxc/lxc_controller.c | 4 +-
src/lxc/lxc_driver.c | 19 +++-----
src/lxc/veth.c | 109 ++++++++-------------------------------------
src/lxc/veth.h | 20 +++-----
6 files changed, 42 insertions(+), 118 deletions(-)
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 1665d2d..810cf68 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -42,7 +42,6 @@ src/lxc/lxc_container.c
src/lxc/lxc_conf.c
src/lxc/lxc_controller.c
src/lxc/lxc_driver.c
-src/lxc/veth.c
src/libxl/libxl_driver.c
src/libxl/libxl_conf.c
src/network/bridge_driver.c
diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c
index c4e5f28..1617117 100644
--- a/src/lxc/lxc_container.c
+++ b/src/lxc/lxc_container.c
@@ -60,6 +60,7 @@
#include "uuid.h"
#include "virfile.h"
#include "command.h"
+#include "virnetdev.h"
#define VIR_FROM_THIS VIR_FROM_LXC
@@ -269,12 +270,12 @@ static int lxcContainerRenameAndEnableInterfaces(unsigned int nveths,
}
VIR_DEBUG("Renaming %s to %s", veths[i], newname);
- rc = setInterfaceName(veths[i], newname);
+ rc = virNetDevSetName(veths[i], newname);
if (rc < 0)
goto error_out;
VIR_DEBUG("Enabling %s", newname);
- rc = vethInterfaceUpOrDown(newname, 1);
+ rc = virNetDevSetOnline(newname, true);
if (rc < 0)
goto error_out;
@@ -283,7 +284,7 @@ static int lxcContainerRenameAndEnableInterfaces(unsigned int nveths,
/* enable lo device only if there were other net devices */
if (veths)
- rc = vethInterfaceUpOrDown("lo", 1);
+ rc = virNetDevSetOnline("lo", true);
error_out:
VIR_FREE(newname);
diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c
index 649ac87..d18055a 100644
--- a/src/lxc/lxc_controller.c
+++ b/src/lxc/lxc_controller.c
@@ -932,7 +932,7 @@ static int lxcControllerMoveInterfaces(unsigned int nveths,
{
unsigned int i;
for (i = 0 ; i < nveths ; i++)
- if (moveInterfaceToNetNs(veths[i], container) < 0)
+ if (virNetDevSetNamespace(veths[i], container) < 0)
return -1;
return 0;
@@ -953,7 +953,7 @@ static int lxcControllerCleanupInterfaces(unsigned int nveths,
{
unsigned int i;
for (i = 0 ; i < nveths ; i++)
- vethDelete(veths[i]);
+ ignore_value(virNetDevVethDelete(veths[i]));
return 0;
}
diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index 2c1154f..77ac605 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -55,6 +55,7 @@
#include "domain_audit.h"
#include "domain_nwfilter.h"
#include "network/bridge_driver.h"
+#include "virnetdev.h"
#define VIR_FROM_THIS VIR_FROM_LXC
@@ -1152,8 +1153,8 @@ static void lxcVmCleanup(lxc_driver_t *driver,
priv->monitorWatch = -1;
for (i = 0 ; i < vm->def->nnets ; i++) {
- vethInterfaceUpOrDown(vm->def->nets[i]->ifname, 0);
- vethDelete(vm->def->nets[i]->ifname);
+ ignore_value(virNetDevSetOnline(vm->def->nets[i]->ifname, false));
+ ignore_value(virNetDevVethDelete(vm->def->nets[i]->ifname));
networkReleaseActualDevice(vm->def->nets[i]);
}
@@ -1246,7 +1247,7 @@ static int lxcSetupInterfaces(virConnectPtr conn,
VIR_DEBUG("calling vethCreate()");
parentVeth = def->nets[i]->ifname;
- if (vethCreate(&parentVeth, &containerVeth) < 0)
+ if (virNetDevVethCreate(&parentVeth, &containerVeth) < 0)
goto error_exit;
VIR_DEBUG("parentVeth: %s, containerVeth: %s", parentVeth, containerVeth);
@@ -1262,17 +1263,13 @@ static int lxcSetupInterfaces(virConnectPtr conn,
(*veths)[(*nveths)] = containerVeth;
(*nveths)++;
- {
- char macaddr[VIR_MAC_STRING_BUFLEN];
- virFormatMacAddr(def->nets[i]->mac, macaddr);
- if (setMacAddr(containerVeth, macaddr) < 0)
- goto error_exit;
- }
+ if (virNetDevSetMAC(containerVeth, def->nets[i]->mac) < 0)
+ goto error_exit;
if (virNetDevBridgeAddPort(bridge, parentVeth) < 0)
goto error_exit;
- if (vethInterfaceUpOrDown(parentVeth, 1) < 0)
+ if (virNetDevSetOnline(parentVeth, true) < 0)
goto error_exit;
if (virNetDevBandwidthSet(def->nets[i]->ifname,
@@ -1829,7 +1826,7 @@ cleanup:
}
for (i = 0 ; i < nveths ; i++) {
if (rc != 0)
- vethDelete(veths[i]);
+ ignore_value(virNetDevVethDelete(veths[i]));
VIR_FREE(veths[i]);
}
if (rc != 0) {
diff --git a/src/lxc/veth.c b/src/lxc/veth.c
index e4db65c..b31ce33 100644
--- a/src/lxc/veth.c
+++ b/src/lxc/veth.c
@@ -28,15 +28,15 @@
#include "virterror_internal.h"
#include "virfile.h"
-#define VIR_FROM_THIS VIR_FROM_LXC
+#define VIR_FROM_THIS VIR_FROM_NONE
-#define vethError(code, ...) \
- virReportErrorHelper(VIR_FROM_LXC, code, __FILE__, \
+#define virNetDevvError(code, ...) \
+ virReportErrorHelper(VIR_FROM_NONE, code, __FILE__, \
__FUNCTION__, __LINE__, __VA_ARGS__)
/* Functions */
/**
- * getFreeVethName:
+ * virNetDevVethGetFreeName:
* @veth: pointer to store returned name for veth device
* @startDev: device number to start at (x in vethx)
*
@@ -45,7 +45,7 @@
*
* Returns non-negative device number on success or -1 in case of error
*/
-static int getFreeVethName(char **veth, int startDev)
+static int virNetDevVethGetFreeName(char **veth, int startDev)
{
int devNum = startDev-1;
char *path = NULL;
@@ -71,7 +71,7 @@ static int getFreeVethName(char **veth, int startDev)
}
/**
- * vethCreate:
+ * virNetDevVethCreate:
* @veth1: pointer to name for parent end of veth pair
* @veth2: pointer to return name for container end of veth pair
*
@@ -95,7 +95,7 @@ static int getFreeVethName(char **veth, int startDev)
*
* Returns 0 on success or -1 in case of error
*/
-int vethCreate(char** veth1, char** veth2)
+int virNetDevVethCreate(char** veth1, char** veth2)
{
int rc = -1;
const char *argv[] = {
@@ -108,7 +108,7 @@ int vethCreate(char** veth1, char** veth2)
VIR_DEBUG("Host: %s guest: %s", NULLSTR(*veth1), NULLSTR(*veth2));
if (*veth1 == NULL) {
- if ((vethDev = getFreeVethName(veth1, vethDev)) < 0)
+ if ((vethDev = virNetDevVethGetFreeName(veth1, vethDev)) < 0)
goto cleanup;
VIR_DEBUG("Assigned host: %s", *veth1);
veth1_alloc = true;
@@ -117,7 +117,7 @@ int vethCreate(char** veth1, char** veth2)
argv[3] = *veth1;
while (*veth2 == NULL) {
- if ((vethDev = getFreeVethName(veth2, vethDev)) < 0) {
+ if ((vethDev = virNetDevVethGetFreeName(veth2, vethDev)) < 0) {
if (veth1_alloc)
VIR_FREE(*veth1);
goto cleanup;
@@ -151,7 +151,7 @@ cleanup:
}
/**
- * vethDelete:
+ * virNetDevVethDelete:
* @veth: name for one end of veth pair
*
* This will delete both veth devices in a pair. Only one end needs to
@@ -161,7 +161,7 @@ cleanup:
*
* Returns 0 on success or -1 in case of error
*/
-int vethDelete(const char *veth)
+int virNetDevVethDelete(const char *veth)
{
int rc;
const char *argv[] = {"ip", "link", "del", veth, NULL};
@@ -185,59 +185,10 @@ int vethDelete(const char *veth)
return rc;
}
-/**
- * vethInterfaceUpOrDown:
- * @veth: name of veth device
- * @upOrDown: 0 => down, 1 => up
- *
- * Enables a veth device using SIOCSIFFLAGS
- *
- * Returns 0 on success, -1 on failure, with errno set
- */
-int vethInterfaceUpOrDown(const char* veth, int upOrDown)
-{
- struct ifreq ifr;
- int fd, ret;
-
- if ((fd = socket(PF_PACKET, SOCK_DGRAM, 0)) == -1)
- return(-1);
-
- memset(&ifr, 0, sizeof(struct ifreq));
-
- if (virStrcpyStatic(ifr.ifr_name, veth) == NULL) {
- errno = EINVAL;
- return -1;
- }
-
- if ((ret = ioctl(fd, SIOCGIFFLAGS, &ifr)) == 0) {
- if (upOrDown)
- ifr.ifr_flags |= IFF_UP;
- else
- ifr.ifr_flags &= ~(IFF_UP | IFF_RUNNING);
-
- ret = ioctl(fd, SIOCSIFFLAGS, &ifr);
- }
-
- VIR_FORCE_CLOSE(fd);
- if (ret == -1)
- if (upOrDown == 0)
- /*
- * Prevent overwriting an error log which may be set
- * where an actual failure occurs.
- */
- VIR_DEBUG("Failed to disable '%s'", veth);
- else
- vethError(VIR_ERR_INTERNAL_ERROR,
- _("Failed to enable '%s'"), veth);
- else
- ret = 0;
-
- return(ret);
-}
/**
- * moveInterfaceToNetNs:
- * @iface: name of device
+ * 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
@@ -246,12 +197,12 @@ int vethInterfaceUpOrDown(const char* veth, int upOrDown)
*
* Returns 0 on success or -1 in case of error
*/
-int moveInterfaceToNetNs(const char* iface, int pidInNs)
+int virNetDevSetNamespace(const char* ifname, int pidInNs)
{
int rc;
char *pid = NULL;
const char *argv[] = {
- "ip", "link", "set", iface, "netns", NULL, NULL
+ "ip", "link", "set", ifname, "netns", NULL, NULL
};
if (virAsprintf(&pid, "%d", pidInNs) == -1) {
@@ -267,42 +218,22 @@ int moveInterfaceToNetNs(const char* iface, int pidInNs)
}
/**
- * setMacAddr
- * @iface: name of device
- * @macaddr: MAC address to be assigned
- *
- * Changes the MAC address of the given device with the
- * given address using this command:
- * ip link set @iface address @macaddr
- *
- * Returns 0 on success or -1 in case of error
- */
-int setMacAddr(const char* iface, const char* macaddr)
-{
- const char *argv[] = {
- "ip", "link", "set", iface, "address", macaddr, NULL
- };
-
- return virRun(argv, NULL);
-}
-
-/**
- * setInterfaceName
- * @iface: name of device
- * @new: new name of @iface
+ * 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 setInterfaceName(const char* iface, const char* new)
+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, iface) == NULL) {
+ if (virStrcpyStatic(ifr.ifr_name, ifname) == NULL) {
errno = EINVAL;
return -1;
}
diff --git a/src/lxc/veth.h b/src/lxc/veth.h
index f50a939..4a66098 100644
--- a/src/lxc/veth.h
+++ b/src/lxc/veth.h
@@ -17,17 +17,13 @@
# include "internal.h"
/* Function declarations */
-int vethCreate(char** veth1, char** veth2)
- ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
-int vethDelete(const char* veth)
- ATTRIBUTE_NONNULL(1);
-int vethInterfaceUpOrDown(const char* veth, int upOrDown)
- ATTRIBUTE_NONNULL(1);
-int moveInterfaceToNetNs(const char *iface, int pidInNs)
- ATTRIBUTE_NONNULL(1);
-int setMacAddr(const char* iface, const char* macaddr)
- ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
-int setInterfaceName(const char* iface, const char* new)
- ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
+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 */
--
1.7.6.4
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