From: Maxim Perevedentsev <mperevedentsev@virtuozzo.com>
Date: Tue, 20 Oct 2015 15:44:19 +0000 (+0300)
Subject: netlink: add support for multi-part netlink messages.
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=131e7245a8336541ee61047eac8ecb447129b963;p=people%2Fliuw%2Flibxenctrl-split%2Flibvirt.git

netlink: add support for multi-part netlink messages.

Such messages do not have NLMSG_ERROR or NLMSG_DONE type
but they are valid responses. We test 'multi-partness'
by looking for NLM_F_MULTI flag.
---

diff --git a/src/util/virnetlink.c b/src/util/virnetlink.c
index 0276522a2..679b48e77 100644
--- a/src/util/virnetlink.c
+++ b/src/util/virnetlink.c
@@ -394,7 +394,9 @@ virNetlinkGetErrorCode(struct nlmsghdr *resp, unsigned int recvbuflen)
         break;
 
     default:
-        goto malformed_resp;
+        /* We allow multipart messages. */
+        if (!(resp->nlmsg_flags & NLM_F_MULTI))
+            goto malformed_resp;
     }
 
     return result;