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use the configuration structure for setting up the rootfs

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use the configuration structure for setting up the rootfs

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
This commit is contained in:
Daniel Lezcano 2009-10-09 11:38:38 +02:00
parent ecb0e51b0c
commit c69bd12f88
1 changed files with 30 additions and 14 deletions
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44
src/lxc/conf.c
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@ -842,25 +842,46 @@ static int setup_tty(const char *name, const struct lxc_tty_info *tty_info)
return 0;
}
static int setup_rootfs(const char *name)
static int setup_rootfs(const char *rootfs)
{
char path[MAXPATHLEN];
char *tmpname;
int ret = -1;
snprintf(path, MAXPATHLEN, LXCPATH "/%s/rootfs", name);
if (!rootfs)
return 0;
if (chroot(path)) {
SYSERROR("failed to set chroot %s", path);
tmpname = tempnam("/tmp", "lxc-rootfs");
if (!tmpname) {
SYSERROR("failed to generate temporary name");
return -1;
}
if (mkdir(tmpname, 0700)) {
SYSERROR("failed to create temporary directory '%s'", tmpname);
return -1;
}
if (mount(rootfs, tmpname, "none", MS_BIND|MS_REC, NULL)) {
SYSERROR("failed to mount '%s'->'%s'", rootfs, tmpname);
goto out;
}
if (chroot(tmpname)) {
SYSERROR("failed to set chroot %s", tmpname);
goto out;
}
if (chdir(getenv("HOME")) && chdir("/")) {
SYSERROR("failed to change to home directory");
return -1;
goto out;
}
INFO("chrooted to '%s'", path);
INFO("chrooted to '%s'", rootfs);
return 0;
ret = 0;
out:
rmdir(tmpname);
return ret;
}
static int setup_pts(const char *name)
@ -1434,11 +1455,6 @@ int lxc_configure(const char *name, struct lxc_conf *conf)
return -1;
}
if (conf->rootfs && configure_rootfs(name, conf->rootfs)) {
ERROR("failed to configure the rootfs");
return -1;
}
if (conf->pts && configure_pts(name, conf->pts)) {
ERROR("failed to configure a new pts instance");
return -1;
@ -1860,7 +1876,7 @@ int lxc_setup(const char *name, const char *cons,
return -1;
}
if (lxc_conf.rootfs && setup_rootfs(name)) {
if (setup_rootfs(lxc_conf.rootfs)) {
ERROR("failed to set rootfs for '%s'", name);
return -1;
}