Convert one interface from the "return" array returned by
"guest-network-get-interfaces" to virDomainInterface.
Due to the functionality of squashing interface aliases together,
this is not a pure function - it either:
* Adds the interface to ifaces_ret, incrementing ifaces_count
and adds a pointer to it into the ifaces_store hash table.
* Adds the additional IP addresses from the interface alias
to the existing interface entry, found through the hash table.
This does not increment ifaces_count or extend the array.
Signed-off-by: Ján Tomko <jtomko@xxxxxxxxxx>
---
src/qemu/qemu_agent.c | 162 +++++++++++++++++++++++++-----------------
1 file changed, 98 insertions(+), 64 deletions(-)
diff --git a/src/qemu/qemu_agent.c b/src/qemu/qemu_agent.c
index 721ff55fff..e614fdd7c4 100644
--- a/src/qemu/qemu_agent.c
+++ b/src/qemu/qemu_agent.c
@@ -2104,6 +2104,101 @@ qemuAgentGetInterfaceOneAddress(virDomainIPAddressPtr ip_addr,
}
+/**
+ * qemuAgentGetInterfaceAddresses:
+ * @ifaces_ret: the array to put/update the interface in
+ * @ifaces_count: the number of interfaces in that array
+ * @ifaces_store: hash table into @ifaces_ret by interface name
+ * @tmp_iface: one item from the JSON array of interfaces
+ *
+ * This function processes @tmp_iface (which represents
+ * information about a single interface) and adds the information
+ * into the ifaces_ret array.
+ *
+ * If we're processing an interface alias, the suffix is stripped
+ * and information is appended to the entry found via the @ifaces_store
+ * hash table.
+ *
+ * Otherwise, the next free position in @ifaces_ret is used,
+ * its address added to @ifaces_store, and @ifaces_count incremented.
+ */
+static int
+qemuAgentGetInterfaceAddresses(virDomainInterfacePtr **ifaces_ret,
+ size_t *ifaces_count,
+ virHashTablePtr ifaces_store,
+ virJSONValuePtr tmp_iface)
+{
+ virJSONValuePtr ip_addr_arr = NULL;
+ const char *hwaddr, *ifname_s, *name = NULL;
+ virDomainInterfacePtr iface = NULL;
+ g_auto(GStrv) ifname = NULL;
+ size_t addrs_count = 0;
+ size_t j;
+
+ /* interface name is required to be presented */
+ name = virJSONValueObjectGetString(tmp_iface, "name");
+ if (!name) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("qemu agent didn't provide 'name' field"));
+ return -1;
+ }
+
+ /* Handle interface alias (<ifname>:<alias>) */
+ ifname = virStringSplit(name, ":", 2);
+ ifname_s = ifname[0];
+
+ iface = virHashLookup(ifaces_store, ifname_s);
+
+ /* If the hash table doesn't contain this iface, add it */
+ if (!iface) {
+ if (VIR_EXPAND_N(*ifaces_ret, *ifaces_count, 1) < 0)
+ return -1;
+
+ iface = g_new0(virDomainInterface, 1);
+ (*ifaces_ret)[*ifaces_count - 1] = iface;
+
+ if (virHashAddEntry(ifaces_store, ifname_s, iface) < 0)
+ return -1;
+
+ iface->naddrs = 0;
+ iface->name = g_strdup(ifname_s);
+
+ hwaddr = virJSONValueObjectGetString(tmp_iface, "hardware-address");
+ iface->hwaddr = g_strdup(hwaddr);
+ }
+
+ /* as well as IP address which - moreover -
+ * can be presented multiple times */
+ ip_addr_arr = virJSONValueObjectGet(tmp_iface, "ip-addresses");
+ if (!ip_addr_arr)
+ return 0;
+
+ if (!virJSONValueIsArray(ip_addr_arr)) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("Malformed ip-addresses array"));
+ return -1;
+ }
+
+ /* If current iface already exists, continue with the count */
+ addrs_count = iface->naddrs;
+
+ if (VIR_EXPAND_N(iface->addrs, addrs_count,
+ virJSONValueArraySize(ip_addr_arr)) < 0)
+ return -1;
+
+ for (j = 0; j < virJSONValueArraySize(ip_addr_arr); j++) {
+ virJSONValuePtr ip_addr_obj = virJSONValueArrayGet(ip_addr_arr, j);
+ virDomainIPAddressPtr ip_addr = iface->addrs + iface->naddrs;
+ iface->naddrs++;
+
+ if (qemuAgentGetInterfaceOneAddress(ip_addr, ip_addr_obj, name) < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+
/*
* qemuAgentGetInterfaces:
* @agent: agent object
@@ -2120,7 +2215,7 @@ qemuAgentGetInterfaces(qemuAgentPtr agent,
virDomainInterfacePtr **ifaces)
{
int ret = -1;
- size_t i, j;
+ size_t i;
virJSONValuePtr cmd = NULL;
virJSONValuePtr reply = NULL;
virJSONValuePtr ret_array = NULL;
@@ -2151,71 +2246,10 @@ qemuAgentGetInterfaces(qemuAgentPtr agent,
for (i = 0; i < virJSONValueArraySize(ret_array); i++) {
virJSONValuePtr tmp_iface = virJSONValueArrayGet(ret_array, i);
- virJSONValuePtr ip_addr_arr = NULL;
- const char *hwaddr, *ifname_s, *name = NULL;
- virDomainInterfacePtr iface = NULL;
- g_auto(GStrv) ifname = NULL;
- size_t addrs_count = 0;
- /* interface name is required to be presented */
- name = virJSONValueObjectGetString(tmp_iface, "name");
- if (!name) {
- virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("qemu agent didn't provide 'name' field"));
+ if (qemuAgentGetInterfaceAddresses(&ifaces_ret, &ifaces_count,
+ ifaces_store, tmp_iface) < 0)
goto error;
- }
-
- /* Handle interface alias (<ifname>:<alias>) */
- ifname = virStringSplit(name, ":", 2);
- ifname_s = ifname[0];
-
- iface = virHashLookup(ifaces_store, ifname_s);
-
- /* If the hash table doesn't contain this iface, add it */
- if (!iface) {
- if (VIR_EXPAND_N(ifaces_ret, ifaces_count, 1) < 0)
- goto error;
-
- iface = g_new0(virDomainInterface, 1);
- ifaces_ret[ifaces_count - 1] = iface;
-
- if (virHashAddEntry(ifaces_store, ifname_s, iface) < 0)
- goto error;
-
- iface->naddrs = 0;
- iface->name = g_strdup(ifname_s);
-
- hwaddr = virJSONValueObjectGetString(tmp_iface, "hardware-address");
- iface->hwaddr = g_strdup(hwaddr);
- }
-
- /* as well as IP address which - moreover -
- * can be presented multiple times */
- ip_addr_arr = virJSONValueObjectGet(tmp_iface, "ip-addresses");
- if (!ip_addr_arr)
- continue;
-
- if (!virJSONValueIsArray(ip_addr_arr)) {
- virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("Malformed ip-addresses array"));
- goto error;
- }
-
- /* If current iface already exists, continue with the count */
- addrs_count = iface->naddrs;
-
- if (VIR_EXPAND_N(iface->addrs, addrs_count,
- virJSONValueArraySize(ip_addr_arr)) < 0)
- goto error;
-
- for (j = 0; j < virJSONValueArraySize(ip_addr_arr); j++) {
- virJSONValuePtr ip_addr_obj = virJSONValueArrayGet(ip_addr_arr, j);
- virDomainIPAddressPtr ip_addr = iface->addrs + iface->naddrs;
- iface->naddrs++;
-
- if (qemuAgentGetInterfaceOneAddress(ip_addr, ip_addr_obj, name) < 0)
- goto error;
- }
}
*ifaces = g_steal_pointer(&ifaces_ret);
--
2.26.2
