[libvirt] [PATCH v3 10/21] LXC from native: convert lxc.id_map into <idmap>
Daniel P. Berrange
berrange at redhat.com
Wed Feb 12 17:50:54 UTC 2014
On Wed, Feb 05, 2014 at 03:10:08PM +0100, Cédric Bosdonnat wrote:
> ---
> src/lxc/lxc_native.c | 44 ++++++++++++++++++++++++++
> tests/lxcconf2xmldata/lxcconf2xml-idmap.config | 5 +++
> tests/lxcconf2xmldata/lxcconf2xml-idmap.xml | 28 ++++++++++++++++
> tests/lxcconf2xmltest.c | 1 +
> 4 files changed, 78 insertions(+)
> create mode 100644 tests/lxcconf2xmldata/lxcconf2xml-idmap.config
> create mode 100644 tests/lxcconf2xmldata/lxcconf2xml-idmap.xml
>
> diff --git a/src/lxc/lxc_native.c b/src/lxc/lxc_native.c
> index b413e42..dd706f8 100644
> --- a/src/lxc/lxc_native.c
> +++ b/src/lxc/lxc_native.c
> +static int
> +lxcIdmapWalkCallback(const char *name, virConfValuePtr value, void *data)
> +{
> + virDomainDefPtr def = data;
> + virDomainIdMapEntryPtr idmap = NULL;
> + char type;
> + unsigned long start, target, count;
> +
> + if (STRNEQ(name, "lxc.id_map") || !value->str)
> + return 0;
> +
> + if (sscanf(value->str, "%c %lu %lu %lu", &type,
> + &target, &start, &count) != 4) {
> + virReportError(VIR_ERR_INTERNAL_ERROR, _("invalid lxc.id_map: '%s'"),
> + value->str);
> + return -1;
> + }
> +
> + if (VIR_ALLOC(idmap) < 0)
> + return -1;
This alloc is bogus since we assign to 'idmap' a few lines later.
I'm removing it when i push.
> +
> + if (type == 'u') {
> + if (VIR_EXPAND_N(def->idmap.uidmap, def->idmap.nuidmap, 1) < 0)
> + return -1;
> + idmap = &def->idmap.uidmap[def->idmap.nuidmap - 1];
> + } else if (type == 'g') {
> + if (VIR_EXPAND_N(def->idmap.gidmap, def->idmap.ngidmap, 1) < 0)
> + return -1;
> + idmap = &def->idmap.gidmap[def->idmap.ngidmap - 1];
> + } else {
> + return -1;
> + }
> +
> + idmap->start = start;
> + idmap->target = target;
> + idmap->count = count;
> +
> + return 0;
> +}
Daniel
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