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lockd: Support non-AF_INET addresses in nlm_lookup_host()

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Use struct sockaddr * and length in nlm_lookup_host_info to all callers
to pass in either AF_INET or AF_INET6 addresses.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Chuck Lever 2008-10-03 12:50:14 -04:00 committed by J. Bruce Fields
parent 7f1ed18bd3
commit 88541c8487
1 changed files with 20 additions and 17 deletions
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37
fs/lockd/host.c
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@ -40,12 +40,13 @@ static struct nsm_handle *nsm_find(const struct sockaddr *sap,
struct nlm_lookup_host_info {
const int server; /* search for server|client */
const struct sockaddr_in *sin; /* address to search for */
const struct sockaddr *sap; /* address to search for */
const size_t salen; /* it's length */
const unsigned short protocol; /* transport to search for*/
const u32 version; /* NLM version to search for */
const char *hostname; /* remote's hostname */
const size_t hostname_len; /* it's length */
const struct sockaddr_in *src_sin; /* our address (optional) */
const struct sockaddr *src_sap; /* our address (optional) */
const size_t src_len; /* it's length */
};
@ -151,9 +152,9 @@ static struct nlm_host *nlm_lookup_host(struct nlm_lookup_host_info *ni)
* different NLM rpc_clients into one single nlm_host object.
* This would allow us to have one nlm_host per address.
*/
chain = &nlm_hosts[nlm_hash_address((struct sockaddr *)ni->sin)];
chain = &nlm_hosts[nlm_hash_address(ni->sap)];
hlist_for_each_entry(host, pos, chain, h_hash) {
if (!nlm_cmp_addr(nlm_addr(host), (struct sockaddr *)ni->sin))
if (!nlm_cmp_addr(nlm_addr(host), ni->sap))
continue;
/* See if we have an NSM handle for this client */
@ -166,8 +167,7 @@ static struct nlm_host *nlm_lookup_host(struct nlm_lookup_host_info *ni)
continue;
if (host->h_server != ni->server)
continue;
if (!nlm_cmp_addr(nlm_srcaddr(host),
(struct sockaddr *)ni->src_sin))
if (!nlm_cmp_addr(nlm_srcaddr(host), ni->src_sap))
continue;
/* Move to head of hash chain. */
@ -188,8 +188,7 @@ static struct nlm_host *nlm_lookup_host(struct nlm_lookup_host_info *ni)
atomic_inc(&nsm->sm_count);
else {
host = NULL;
nsm = nsm_find((struct sockaddr *)ni->sin,
sizeof(struct sockaddr_in),
nsm = nsm_find(ni->sap, ni->salen,
ni->hostname, ni->hostname_len, 1);
if (!nsm) {
dprintk("lockd: nlm_lookup_host failed; "
@ -205,10 +204,10 @@ static struct nlm_host *nlm_lookup_host(struct nlm_lookup_host_info *ni)
goto out;
}
host->h_name = nsm->sm_name;
memcpy(nlm_addr(host), ni->sin, sizeof(struct sockaddr_in));
host->h_addrlen = sizeof(struct sockaddr_in);
memcpy(nlm_addr(host), ni->sap, ni->salen);
host->h_addrlen = ni->salen;
nlm_clear_port(nlm_addr(host));
memcpy(nlm_srcaddr(host), ni->src_sin, sizeof(struct sockaddr_in));
memcpy(nlm_srcaddr(host), ni->src_sap, ni->src_len);
host->h_version = ni->version;
host->h_proto = ni->protocol;
host->h_rpcclnt = NULL;
@ -273,17 +272,19 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr_in *sin,
const char *hostname,
unsigned int hostname_len)
{
const struct sockaddr_in source = {
.sin_family = AF_UNSPEC,
const struct sockaddr source = {
.sa_family = AF_UNSPEC,
};
struct nlm_lookup_host_info ni = {
.server = 0,
.sin = sin,
.sap = (struct sockaddr *)sin,
.salen = sizeof(*sin),
.protocol = proto,
.version = version,
.hostname = hostname,
.hostname_len = hostname_len,
.src_sin = &source,
.src_sap = &source,
.src_len = sizeof(source),
};
dprintk("lockd: %s(host='%s', vers=%u, proto=%s)\n", __func__,
@ -306,12 +307,14 @@ nlmsvc_lookup_host(struct svc_rqst *rqstp,
};
struct nlm_lookup_host_info ni = {
.server = 1,
.sin = svc_addr_in(rqstp),
.sap = svc_addr(rqstp),
.salen = rqstp->rq_addrlen,
.protocol = rqstp->rq_prot,
.version = rqstp->rq_vers,
.hostname = hostname,
.hostname_len = hostname_len,
.src_sin = &source,
.src_sap = (struct sockaddr *)&source,
.src_len = sizeof(source),
};
dprintk("lockd: %s(host='%*s', vers=%u, proto=%s)\n", __func__,