diff options
| author |   Trond Myklebust <trondmy@gmail.com> | 2019-04-24 17:46:50 -0400 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2019-04-26 17:51:23 -0400 |
| commit | b422df915cef80333d7a1732e6ed81f41db12b79 (patch) | |
| tree | fefeaf3f1ff40381b9b7cdbd0a20d994920c9c22 /fs/lockd | |
| parent | NFS: When mounting, don't share filesystems between different user namespaces (diff) | |
| download | linux-dev-b422df915cef80333d7a1732e6ed81f41db12b79.tar.xz linux-dev-b422df915cef80333d7a1732e6ed81f41db12b79.zip | |
lockd: Store the lockd client credential in struct nlm_host
When we create a new lockd client, we want to be able to pass the
correct credential of the process that created the struct nlm_host.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/lockd')
| -rw-r--r-- | fs/lockd/clntlock.c | 2 | ||||
| -rw-r--r-- | fs/lockd/host.c | 11 |
2 files changed, 10 insertions, 3 deletions
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c index c2a128678e6e..70f520b41a19 100644 --- a/fs/lockd/clntlock.c +++ b/fs/lockd/clntlock.c @@ -63,7 +63,7 @@ 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->net); + nlm_init->net, nlm_init->cred); if (host == NULL) goto out_nohost; if (host->h_rpcclnt == NULL && nlm_bind_host(host) == NULL) diff --git a/fs/lockd/host.c b/fs/lockd/host.c index d46081123f7c..7d46fafdbbe5 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -60,6 +60,7 @@ struct nlm_lookup_host_info { const size_t hostname_len; /* it's length */ const int noresvport; /* use non-priv port */ struct net *net; /* network namespace to bind */ + const struct cred *cred; }; /* @@ -162,6 +163,7 @@ static struct nlm_host *nlm_alloc_host(struct nlm_lookup_host_info *ni, host->h_nsmhandle = nsm; host->h_addrbuf = nsm->sm_addrbuf; host->net = ni->net; + host->h_cred = get_cred(ni->cred), strlcpy(host->nodename, utsname()->nodename, sizeof(host->nodename)); out: @@ -188,6 +190,7 @@ static void nlm_destroy_host_locked(struct nlm_host *host) clnt = host->h_rpcclnt; if (clnt != NULL) rpc_shutdown_client(clnt); + put_cred(host->h_cred); kfree(host); ln->nrhosts--; @@ -202,6 +205,8 @@ static void nlm_destroy_host_locked(struct nlm_host *host) * @version: NLM protocol version * @hostname: '\0'-terminated hostname of server * @noresvport: 1 if non-privileged port should be used + * @net: pointer to net namespace + * @cred: pointer to cred * * Returns an nlm_host structure that matches the passed-in * [server address, transport protocol, NLM version, server hostname]. @@ -214,7 +219,8 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap, const u32 version, const char *hostname, int noresvport, - struct net *net) + struct net *net, + const struct cred *cred) { struct nlm_lookup_host_info ni = { .server = 0, @@ -226,6 +232,7 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap, .hostname_len = strlen(hostname), .noresvport = noresvport, .net = net, + .cred = cred, }; struct hlist_head *chain; struct nlm_host *host; @@ -458,7 +465,7 @@ nlm_bind_host(struct nlm_host *host) .authflavor = RPC_AUTH_UNIX, .flags = (RPC_CLNT_CREATE_NOPING | RPC_CLNT_CREATE_AUTOBIND), - .cred = current_cred(), + .cred = host->h_cred, }; /* |