Commit 66697bfd authored by Stanislav Kinsbursky's avatar Stanislav Kinsbursky Committed by Trond Myklebust

LockD: make nlm hosts network namespace aware

This object depends on RPC client, and thus on network namespace.
So let's make it's allocation and lookup in network namespace context.
Signed-off-by: default avatarStanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent bb2224df
......@@ -62,7 +62,8 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
host = nlmclnt_lookup_host(nlm_init->address, nlm_init->addrlen,
nlm_init->protocol, nlm_version,
nlm_init->hostname, nlm_init->noresvport);
nlm_init->hostname, nlm_init->noresvport,
nlm_init->net);
if (host == NULL) {
lockd_down();
return ERR_PTR(-ENOLCK);
......
......@@ -17,6 +17,8 @@
#include <linux/lockd/lockd.h>
#include <linux/mutex.h>
#include <linux/sunrpc/svc_xprt.h>
#include <net/ipv6.h>
#define NLMDBG_FACILITY NLMDBG_HOSTCACHE
......@@ -54,6 +56,7 @@ struct nlm_lookup_host_info {
const char *hostname; /* remote's hostname */
const size_t hostname_len; /* it's length */
const int noresvport; /* use non-priv port */
struct net *net; /* network namespace to bind */
};
/*
......@@ -155,6 +158,7 @@ static struct nlm_host *nlm_alloc_host(struct nlm_lookup_host_info *ni,
INIT_LIST_HEAD(&host->h_reclaim);
host->h_nsmhandle = nsm;
host->h_addrbuf = nsm->sm_addrbuf;
host->net = ni->net;
out:
return host;
......@@ -206,7 +210,8 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
const unsigned short protocol,
const u32 version,
const char *hostname,
int noresvport)
int noresvport,
struct net *net)
{
struct nlm_lookup_host_info ni = {
.server = 0,
......@@ -217,6 +222,7 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
.hostname = hostname,
.hostname_len = strlen(hostname),
.noresvport = noresvport,
.net = net,
};
struct hlist_head *chain;
struct hlist_node *pos;
......@@ -231,6 +237,8 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
chain = &nlm_client_hosts[nlm_hash_address(sap)];
hlist_for_each_entry(host, pos, chain, h_hash) {
if (host->net != net)
continue;
if (!rpc_cmp_addr(nlm_addr(host), sap))
continue;
......@@ -318,6 +326,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
struct nsm_handle *nsm = NULL;
struct sockaddr *src_sap = svc_daddr(rqstp);
size_t src_len = rqstp->rq_daddrlen;
struct net *net = rqstp->rq_xprt->xpt_net;
struct nlm_lookup_host_info ni = {
.server = 1,
.sap = svc_addr(rqstp),
......@@ -326,6 +335,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
.version = rqstp->rq_vers,
.hostname = hostname,
.hostname_len = hostname_len,
.net = net,
};
dprintk("lockd: %s(host='%*s', vers=%u, proto=%s)\n", __func__,
......@@ -339,6 +349,8 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
chain = &nlm_server_hosts[nlm_hash_address(ni.sap)];
hlist_for_each_entry(host, pos, chain, h_hash) {
if (host->net != net)
continue;
if (!rpc_cmp_addr(nlm_addr(host), ni.sap))
continue;
......@@ -431,7 +443,7 @@ nlm_bind_host(struct nlm_host *host)
.to_retries = 5U,
};
struct rpc_create_args args = {
.net = &init_net,
.net = host->net,
.protocol = host->h_proto,
.address = nlm_addr(host),
.addrsize = host->h_addrlen,
......
......@@ -707,6 +707,7 @@ static int nfs_start_lockd(struct nfs_server *server)
.nfs_version = clp->rpc_ops->version,
.noresvport = server->flags & NFS_MOUNT_NORESVPORT ?
1 : 0,
.net = clp->net,
};
if (nlm_init.nfs_version > 3)
......
......@@ -42,6 +42,7 @@ struct nlmclnt_initdata {
unsigned short protocol;
u32 nfs_version;
int noresvport;
struct net *net;
};
/*
......
......@@ -67,6 +67,7 @@ struct nlm_host {
struct list_head h_reclaim; /* Locks in RECLAIM state */
struct nsm_handle *h_nsmhandle; /* NSM status handle */
char *h_addrbuf; /* address eyecatcher */
struct net *net; /* host net */
};
/*
......@@ -222,7 +223,8 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
const unsigned short protocol,
const u32 version,
const char *hostname,
int noresvport);
int noresvport,
struct net *net);
void nlmclnt_release_host(struct nlm_host *);
struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
const char *hostname,
......
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