NetworkManager/rh1032819-set-broadcast-address.patch
Dan Williams 170f1c14b7 Fix a couple bugs (rh #1034921) (rh #1029213) (rh #1032819)
- core: wait for link before declaring startup complete (rh #1034921)
- core: ignore RA-provided IPv6 default routes (rh #1029213)
- core: set IPv4 broadcast address correctly (rh #1032819)
2013-12-18 13:03:30 -06:00

87 lines
2.4 KiB
Diff

From 7eb12a5b21f87d7592ec2c5235d1ed90c4fac132 Mon Sep 17 00:00:00 2001
From: Dan Williams <dcbw@redhat.com>
Date: Tue, 3 Dec 2013 11:42:28 -0600
Subject: [PATCH] platform: set IPv4 broadcast address too (rh #1032819)
When moving over the platform, setting of the IPv4 broadcast address
got lost. Bring it back.
https://bugzilla.redhat.com/show_bug.cgi?id=1032819
---
src/platform/nm-linux-platform.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/src/platform/nm-linux-platform.c b/src/platform/nm-linux-platform.c
index 8f0e077..3f57925 100644
--- a/src/platform/nm-linux-platform.c
+++ b/src/platform/nm-linux-platform.c
@@ -2213,14 +2213,33 @@ ip6_address_get_all (NMPlatform *platform, int ifindex)
nl_object_unmark (object);
}
}
return addresses;
}
+static void
+addr4_to_broadcast (struct in_addr *dst, const struct in_addr *src, guint8 plen)
+{
+ guint nbytes = plen / 8;
+ guint nbits = plen % 8;
+
+ g_return_if_fail (plen <= 32);
+ g_assert (src);
+ g_assert (dst);
+
+ if (plen >= 32)
+ *dst = *src;
+ else {
+ dst->s_addr = 0xFFFFFFFF;
+ memcpy (dst, src, nbytes);
+ ((guint8 *) dst)[nbytes] = (((const guint8 *) src)[nbytes] | (0xFF >> nbits));
+ }
+}
+
static struct nl_object *
build_rtnl_addr (int family,
int ifindex,
gconstpointer addr,
gconstpointer peer_addr,
int plen,
guint32 lifetime,
@@ -2230,18 +2249,31 @@ build_rtnl_addr (int family,
struct rtnl_addr *rtnladdr = rtnl_addr_alloc ();
int addrlen = family == AF_INET ? sizeof (in_addr_t) : sizeof (struct in6_addr);
auto_nl_addr struct nl_addr *nladdr = nl_addr_build (family, addr, addrlen);
int nle;
g_assert (rtnladdr && nladdr);
+ /* IP address */
rtnl_addr_set_ifindex (rtnladdr, ifindex);
nle = rtnl_addr_set_local (rtnladdr, nladdr);
g_assert (!nle);
+ /* IPv4 Broadcast address */
+ if (family == AF_INET) {
+ struct in_addr bcast;
+ auto_nl_addr struct nl_addr *bcaddr = NULL;
+
+ addr4_to_broadcast (&bcast, addr, plen);
+ bcaddr = nl_addr_build (family, &bcast, addrlen);
+ g_assert (bcaddr);
+ rtnl_addr_set_broadcast (rtnladdr, bcaddr);
+ }
+
+ /* Peer/point-to-point address */
if (peer_addr) {
auto_nl_addr struct nl_addr *nlpeer = nl_addr_build (family, peer_addr, addrlen);
nle = rtnl_addr_set_peer (rtnladdr, nlpeer);
g_assert (!nle);
}
--
1.8.3.1