[PATCH 1/2] conf: Add getter for network routes

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Add virNetworkDefGetRouteByIndex() similarly to
virNetworkDefGetIpByIndex(), but for routes.

Signed-off-by: Martin Kletzander <mkletzan@xxxxxxxxxx>
---
 src/conf/network_conf.c  | 26 ++++++++++++++++++++++++++
 src/conf/network_conf.h  |  3 +++
 src/libvirt_private.syms |  1 +
 3 files changed, 30 insertions(+)

diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
index 31d4463a475b..72006e9822d7 100644
--- a/src/conf/network_conf.c
+++ b/src/conf/network_conf.c
@@ -803,6 +803,32 @@ virNetworkDefGetIpByIndex(const virNetworkDef *def,
     return NULL;
 }

+/* return routes[index], or NULL if there aren't enough routes */
+virNetworkRouteDefPtr
+virNetworkDefGetRouteByIndex(const virNetworkDef *def,
+                             int family, size_t n)
+{
+    size_t i;
+
+    if (!def->routes || n >= def->nroutes)
+        return NULL;
+
+    if (family == AF_UNSPEC)
+        return def->routes[n];
+
+    /* find the nth route of type "family" */
+    for (i = 0; i < def->nroutes; i++) {
+        virSocketAddrPtr addr = virNetworkRouteDefGetAddress(def->routes[i]);
+        if (VIR_SOCKET_ADDR_IS_FAMILY(addr, family)
+            && (n-- <= 0)) {
+            return def->routes[i];
+        }
+    }
+
+    /* failed to find enough of the right family */
+    return NULL;
+}
+
 /* return number of 1 bits in netmask for the network's ipAddress,
  * or -1 on error
  */
diff --git a/src/conf/network_conf.h b/src/conf/network_conf.h
index 9411a02e32cb..1cd5100c1278 100644
--- a/src/conf/network_conf.h
+++ b/src/conf/network_conf.h
@@ -360,6 +360,9 @@ virPortGroupDefPtr virPortGroupFindByName(virNetworkDefPtr net,
 virNetworkIpDefPtr
 virNetworkDefGetIpByIndex(const virNetworkDef *def,
                           int family, size_t n);
+virNetworkRouteDefPtr
+virNetworkDefGetRouteByIndex(const virNetworkDef *def,
+                             int family, size_t n);
 int virNetworkIpDefPrefix(const virNetworkIpDef *def);
 int virNetworkIpDefNetmask(const virNetworkIpDef *def,
                            virSocketAddrPtr netmask);
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 1566d11e4156..9d117acbd2bd 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -598,6 +598,7 @@ virNetworkDefFormat;
 virNetworkDefFormatBuf;
 virNetworkDefFree;
 virNetworkDefGetIpByIndex;
+virNetworkDefGetRouteByIndex;
 virNetworkDefParseFile;
 virNetworkDefParseNode;
 virNetworkDefParseString;
-- 
2.4.5

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