[PATCH v4 2/4] lxc: add LXC version 3 network parser
LXC version 3 or higher introduced indexes for network interfaces.
Libvirt should be able to parse entries like `lxc.net.2.KEY`. This
commit adds functions to parse this type of field. That's why array
structures are so important this time.
Signed-off-by: Julio Faracco <jcfaracco(a)gmail.com>
---
src/lxc/lxc_native.c | 51 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/src/lxc/lxc_native.c b/src/lxc/lxc_native.c
index 31aa666e38..8bbe205659 100644
--- a/src/lxc/lxc_native.c
+++ b/src/lxc/lxc_native.c
@@ -649,6 +649,55 @@ lxcNetworkParseDataSuffix(const char *entry,
}
+static lxcNetworkParseDataPtr
+lxcNetworkGetParseDataByIndex(lxcNetworkParseDataArray *networks,
+ unsigned int index)
+{
+ size_t ndata = networks->ndata;
+ size_t i;
+
+ for (i = 0; i < ndata; i++) {
+ if (networks->parseData[i]->index == index)
+ return networks->parseData[i];
+ }
+
+ /* Index was not found. So, it is time to add new *
+ * interface and return this last position. */
+ if (VIR_EXPAND_N(networks->parseData, networks->ndata, 1) < 0)
+ return NULL;
+
+ networks->parseData[ndata] = g_new0(lxcNetworkParseData, 1);
+ networks->parseData[ndata]->index = index;
+
+ return networks->parseData[ndata];
+}
+
+
+static int
+lxcNetworkParseDataEntry(const char *name,
+ virConfValuePtr value,
+ lxcNetworkParseDataArray *networks)
+{
+ lxcNetworkParseData *parseData;
+ const char *suffix_tmp = STRSKIP(name, "lxc.net.");
+ char *suffix = NULL;
+ unsigned long long index;
+
+ if (virStrToLong_ull(suffix_tmp, &suffix, 10, &index) < 0)
+ return -1;
+
+ if (suffix[0] != '.')
+ return -1;
+
+ suffix++;
+
+ if (!(parseData = lxcNetworkGetParseDataByIndex(networks, index)))
+ return -1;
+
+ return lxcNetworkParseDataSuffix(suffix, value, parseData);
+}
+
+
static lxcNetworkParseDataPtr
lxcNetworkGetParseDataByIndexLegacy(lxcNetworkParseDataArray *networks,
const char *entry)
@@ -695,6 +744,8 @@ lxcNetworkWalkCallback(const char *name, virConfValuePtr value, void
*data)
if (STRPREFIX(name, "lxc.network."))
return lxcNetworkParseDataEntryLegacy(name, value, networks);
+ if (STRPREFIX(name, "lxc.net."))
+ return lxcNetworkParseDataEntry(name, value, networks);
return 0;
}
--
2.20.1