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LXC: hostdev: introduce lxcContainerSetupHostdevCapsMakePath

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This helper function is used to create parent directory for
the hostdev which will be added to the container. If the
parent directory of this hostdev doesn't exist, the mknod of
the hostdev will fail. eg with /dev/net/tun

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
This commit is contained in:
Gao feng 2013-07-09 11:15:11 +01:00 committed by Daniel P. Berrange
parent 9a0ac6d9c2
commit c0d8c7c885
2 changed files with 28 additions and 0 deletions
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26
src/lxc/lxc_container.c
View File

@ -1544,6 +1544,32 @@ cleanup:
}
int lxcContainerSetupHostdevCapsMakePath(const char *dev)
{
int ret = -1;
char *dir, *tmp;
if (VIR_STRDUP(dir, dev) < 0)
return -1;
if ((tmp = strrchr(dir, '/'))) {
*tmp = '\0';
if (virFileMakePath(dir) < 0) {
virReportSystemError(errno,
_("Failed to create directory for '%s' dev '%s'"),
dir, dev);
goto cleanup;
}
}
ret = 0;
cleanup:
VIR_FREE(dir);
return ret;
}
static int lxcContainerSetupHostdevCapsStorage(virDomainDefPtr vmDef ATTRIBUTE_UNUSED,
virDomainHostdevDefPtr def ATTRIBUTE_UNUSED,
virSecurityManagerPtr securityDriver ATTRIBUTE_UNUSED)

2
src/lxc/lxc_container.h
View File

@ -63,6 +63,8 @@ int lxcContainerStart(virDomainDefPtr def,
int lxcContainerAvailable(int features);
int lxcContainerSetupHostdevCapsMakePath(const char *dev);
virArch lxcContainerGetAlt32bitArch(virArch arch);
#endif /* LXC_CONTAINER_H */