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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>
(cherry picked from commit c0d8c7c88579c612cf8a9776d276f8fd59d779f3)
This commit is contained in:
Gao feng 2013-07-09 11:15:11 +01:00 committed by Daniel P. Berrange
parent 2331e5c8d1
commit 6559a35208
2 changed files with 28 additions and 0 deletions
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26
src/lxc/lxc_container.c
View File

@ -1532,6 +1532,32 @@ 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 */