From 79caa5fad47c69874f9efc4ac3128cc3f6d36f6e Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 24 Apr 2019 17:46:42 -0400 Subject: SUNRPC: Cache cred of process creating the rpc_client When converting kuids to AUTH_UNIX creds, etc we will want to use the same user namespace as the process that created the rpc client. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- net/sunrpc/clnt.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'net/sunrpc/clnt.c') diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index e933f1185317..369a2648dafc 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -394,6 +394,7 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, if (err) goto out_no_clid; + clnt->cl_cred = get_cred(args->cred); clnt->cl_procinfo = version->procs; clnt->cl_maxproc = version->nrprocs; clnt->cl_prog = args->prognumber ? : program->number; @@ -439,6 +440,7 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, out_no_path: rpc_free_iostats(clnt->cl_metrics); out_no_stats: + put_cred(clnt->cl_cred); rpc_free_clid(clnt); out_no_clid: kfree(clnt); @@ -631,6 +633,7 @@ static struct rpc_clnt *__rpc_clone_client(struct rpc_create_args *args, new->cl_discrtry = clnt->cl_discrtry; new->cl_chatty = clnt->cl_chatty; new->cl_principal = clnt->cl_principal; + new->cl_cred = get_cred(clnt->cl_cred); return new; out_err: @@ -652,6 +655,7 @@ struct rpc_clnt *rpc_clone_client(struct rpc_clnt *clnt) .prognumber = clnt->cl_prog, .version = clnt->cl_vers, .authflavor = clnt->cl_auth->au_flavor, + .cred = clnt->cl_cred, }; return __rpc_clone_client(&args, clnt); } @@ -673,6 +677,7 @@ rpc_clone_client_set_auth(struct rpc_clnt *clnt, rpc_authflavor_t flavor) .prognumber = clnt->cl_prog, .version = clnt->cl_vers, .authflavor = flavor, + .cred = clnt->cl_cred, }; return __rpc_clone_client(&args, clnt); } @@ -880,6 +885,7 @@ rpc_free_client(struct rpc_clnt *clnt) xprt_put(rcu_dereference_raw(clnt->cl_xprt)); xprt_iter_destroy(&clnt->cl_xpi); rpciod_down(); + put_cred(clnt->cl_cred); rpc_free_clid(clnt); kfree(clnt); return parent; @@ -944,6 +950,7 @@ struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *old, .prognumber = program->number, .version = vers, .authflavor = old->cl_auth->au_flavor, + .cred = old->cl_cred, }; struct rpc_clnt *clnt; int err; -- cgit v1.2.3