Pass a struct sockaddr * and a length to nlmclnt_lookup_host() to
accomodate non-AF_INET family addresses.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
fs/lockd/clntlock.c | 5 ++---
fs/lockd/host.c | 34 ++++++++++++++++++++++++----------
include/linux/lockd/lockd.h | 9 +++++----
3 files changed, 31 insertions(+), 17 deletions(-)
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index 237224a..9eaf306 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -58,10 +58,9 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
if (status < 0)
return ERR_PTR(status);
- host = nlmclnt_lookup_host((struct sockaddr_in *)nlm_init->address,
+ host = nlmclnt_lookup_host(nlm_init->address, nlm_init->addrlen,
nlm_init->protocol, nlm_version,
- nlm_init->hostname,
- strlen(nlm_init->hostname));
+ nlm_init->hostname);
if (host == NULL) {
lockd_down();
return ERR_PTR(-ENOLCK);
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index c9d25d1..b9c87e1 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -267,29 +267,43 @@ nlm_destroy_host(struct nlm_host *host)
kfree(host);
}
-/*
- * Find an NLM server handle in the cache. If there is none, create it.
+/**
+ * nlmclnt_lookup_host - Find an NLM host handle matching a remote server
+ * @sap: network address of server
+ * @salen: length of server address
+ * @protocol: transport protocol to use
+ * @version: NLM protocol version
+ * @hostname: '\0'-terminated hostname of server
+ *
+ * Returns an nlm_host structure that matches the passed-in
+ * [server address, transport protocol, NLM version, server hostname].
+ * If one doesn't already exist in the host cache, a new handle is
+ * created and returned.
*/
-struct nlm_host *nlmclnt_lookup_host(const struct sockaddr_in *sin,
- int proto, u32 version,
- const char *hostname,
- unsigned int hostname_len)
+struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
+ const size_t salen,
+ const unsigned short protocol,
+ const u32 version, const char *hostname)
{
const struct sockaddr source = {
.sa_family = AF_UNSPEC,
};
struct nlm_lookup_host_info ni = {
.peer = NLM_SERVER,
- .sap = (struct sockaddr *)sin,
- .salen = sizeof(*sin),
- .protocol = proto,
+ .sap = sap,
+ .salen = salen,
+ .protocol = protocol,
.version = version,
.hostname = hostname,
- .hostname_len = hostname_len,
+ .hostname_len = strlen(hostname),
.src_sap = &source,
.src_len = sizeof(source),
};
+ dprintk("lockd: nlmclnt_lookup_host(host='%s', vers=%u, proto=%s)\n",
+ (hostname ? hostname : "<none>"), version,
+ (protocol == IPPROTO_UDP ? "udp" : "tcp"));
+
return nlm_lookup_host(&ni);
}
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index ec8af11..693d57b 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -215,10 +215,11 @@ void nlmclnt_next_cookie(struct nlm_cookie *);
/*
* Host cache
*/
-struct nlm_host *nlmclnt_lookup_host(const struct sockaddr_in *sin,
- int proto, u32 version,
- const char *hostname,
- unsigned int hostname_len);
+struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
+ const size_t salen,
+ const unsigned short protocol,
+ const u32 version,
+ const char *hostname);
struct nlm_host *nlmsvc_lookup_host(struct svc_rqst *, const char *,
unsigned int);
struct rpc_clnt * nlm_bind_host(struct nlm_host *);
--
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