Clean up: When doing an RPCB_SET, make the kernel's rpcb client use the
shorthand "::" for the universal form of the IPv6 ANY address.
Without this patch, rpcbind will advertise:
0000:0000:0000:0000:0000:0000:0000:0000.x.y
This is cosmetic only. It cleans up the display of information from
/sbin/rpcinfo.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
net/sunrpc/rpcb_clnt.c | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index cc7250d..02164d4 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -20,6 +20,7 @@
#include <linux/in6.h>
#include <linux/kernel.h>
#include <linux/errno.h>
+#include <net/ipv6.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/sched.h>
@@ -304,10 +305,13 @@ static int rpcb_register_netid6(struct sockaddr_in6 *address_to_register,
char buf[64];
/* Construct AF_INET6 universal address */
- snprintf(buf, sizeof(buf),
- NIP6_FMT".%u.%u",
- NIP6(address_to_register->sin6_addr),
- port >> 8, port & 0xff);
+ if (ipv6_addr_any(&address_to_register->sin6_addr))
+ snprintf(buf, sizeof(buf), "::.%u.%u",
+ port >> 8, port & 0xff);
+ else
+ snprintf(buf, sizeof(buf), NIP6_FMT".%u.%u",
+ NIP6(address_to_register->sin6_addr),
+ port >> 8, port & 0xff);
map->r_addr = buf;
dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with "
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