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| author | Chuck Lever <chuck.lever@oracle.com> | 2007-08-06 11:57:33 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-10-09 17:16:10 -0400 |
| commit | 90058d37c30ffce0e033ea3dcc6a539111483a58 (patch) | |
| tree | baed7764ac3c00bc27244aa58bb1465c6dd87989 /net/sunrpc/xprtsock.c | |
| parent | 7dc753f0391ad94868609376f37be4833671b57d (diff) | |
| download | linux-90058d37c30ffce0e033ea3dcc6a539111483a58.tar.bz2 | |
SUNRPC: create an IPv6-savvy mechanism for binding to a reserved port
Clone xs_bindresvport into two functions, one that can handle IPv4
addresses, and one that can handle IPv6 addresses.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/xprtsock.c')
| -rw-r--r-- | net/sunrpc/xprtsock.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index cd7c18b24527..8295ae28391a 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1261,6 +1261,39 @@ static int xs_bind4(struct sock_xprt *transport, struct socket *sock) return err; } +static int xs_bind6(struct sock_xprt *transport, struct socket *sock) +{ + struct sockaddr_in6 myaddr = { + .sin6_family = AF_INET6, + }; + struct sockaddr_in6 *sa; + int err; + unsigned short port = transport->port; + + if (!transport->xprt.resvport) + port = 0; + sa = (struct sockaddr_in6 *)&transport->addr; + myaddr.sin6_addr = sa->sin6_addr; + do { + myaddr.sin6_port = htons(port); + err = kernel_bind(sock, (struct sockaddr *) &myaddr, + sizeof(myaddr)); + if (!transport->xprt.resvport) + break; + if (err == 0) { + transport->port = port; + break; + } + if (port <= xprt_min_resvport) + port = xprt_max_resvport; + else + port--; + } while (err == -EADDRINUSE && port != transport->port); + dprintk("RPC: xs_bind6 "NIP6_FMT":%u: %s (%d)\n", + NIP6(myaddr.sin6_addr), port, err ? "failed" : "ok", err); + return err; +} + #ifdef CONFIG_DEBUG_LOCK_ALLOC static struct lock_class_key xs_key[2]; static struct lock_class_key xs_slock_key[2]; |