From: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
To: netdev@vger.kernel.org
Cc: roopa@cumulusnetworks.com, dwalton@cumulusnetworks.com,
stephen@networkplumber.org, davem@davemloft.net,
Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Subject: [PATCH net-next 2/4] net: pim: add a helper to check for IPv4 all pim routers address
Date: Mon, 31 Oct 2016 13:21:03 +0100 [thread overview]
Message-ID: <1477916465-20406-3-git-send-email-nikolay@cumulusnetworks.com> (raw)
In-Reply-To: <1477916465-20406-1-git-send-email-nikolay@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
---
include/linux/pim.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/linux/pim.h b/include/linux/pim.h
index 354235a2691b..1b6c0dbba94e 100644
--- a/include/linux/pim.h
+++ b/include/linux/pim.h
@@ -57,4 +57,10 @@ static inline u8 pim_hdr_type(const struct pimhdr *pimhdr)
{
return pimhdr->type & 0xf;
}
+
+/* check if the address is 224.0.0.13, RFC7761 sec 4.3.1 */
+static inline bool pim_ipv4_all_pim_routers(__be32 addr)
+{
+ return addr == htonl(0xE000000D);
+}
#endif
--
2.1.4
next prev parent reply other threads:[~2016-10-31 12:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-31 12:21 [PATCH net-next 0/4] bridge: add support for PIM hello router ports Nikolay Aleksandrov
2016-10-31 12:21 ` [PATCH net-next 1/4] net: pim: add common pimhdr struct and helpers Nikolay Aleksandrov
2016-10-31 12:21 ` Nikolay Aleksandrov [this message]
2016-10-31 12:21 ` [PATCH net-next 3/4] net: pim: add all RFC7761 message types Nikolay Aleksandrov
2016-10-31 12:21 ` [PATCH net-next 4/4] bridge: mcast: add router port on PIM hello message Nikolay Aleksandrov
2016-10-31 20:18 ` [PATCH net-next 0/4] bridge: add support for PIM hello router ports David Miller
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