[PATCH v9 04/19] sunrpc: add rpcauth_map_to_svc_cred_local
From: Mike Snitzer <snitzer@kernel.org>
Date: 2024-06-28 21:11:12
Subsystem:
kernel nfsd, sunrpc, and lockd servers, networking [general], nfs, sunrpc, and lockd clients, the rest · Maintainers:
Chuck Lever, Jeff Layton, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Trond Myklebust, Anna Schumaker, Linus Torvalds
From: Weston Andros Adamson <redacted> Add new funtion rpcauth_map_to_svc_cred_local which maps a generic cred to a svc_cred suitable for use in nfsd. This is needed by the localio code to map nfs client creds to nfs server credentials. Signed-off-by: Weston Andros Adamson <redacted> Signed-off-by: Lance Shelton <redacted> Signed-off-by: Trond Myklebust <redacted> Signed-off-by: Mike Snitzer <snitzer@kernel.org> --- include/linux/sunrpc/auth.h | 4 ++++ net/sunrpc/auth.c | 15 +++++++++++++++ 2 files changed, 19 insertions(+)
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 61e58327b1aa..872f594a924c 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h@@ -11,6 +11,7 @@ #define _LINUX_SUNRPC_AUTH_H #include <linux/sunrpc/sched.h> +#include <linux/sunrpc/svcauth.h> #include <linux/sunrpc/msg_prot.h> #include <linux/sunrpc/xdr.h>
@@ -184,6 +185,9 @@ int rpcauth_uptodatecred(struct rpc_task *); int rpcauth_init_credcache(struct rpc_auth *); void rpcauth_destroy_credcache(struct rpc_auth *); void rpcauth_clear_credcache(struct rpc_cred_cache *); +void rpcauth_map_to_svc_cred_local(struct rpc_auth *, + const struct cred *, + struct svc_cred *); char * rpcauth_stringify_acceptor(struct rpc_cred *); static inline
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 04534ea537c8..00f12ca779c5 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c@@ -308,6 +308,21 @@ rpcauth_init_credcache(struct rpc_auth *auth) } EXPORT_SYMBOL_GPL(rpcauth_init_credcache); +void +rpcauth_map_to_svc_cred_local(struct rpc_auth *auth, const struct cred *cred, + struct svc_cred *svc) +{ + svc->cr_uid = cred->uid; + svc->cr_gid = cred->gid; + svc->cr_flavor = auth->au_flavor; + if (cred->group_info) + svc->cr_group_info = get_group_info(cred->group_info); + /* These aren't relevant for local (network is bypassed) */ + svc->cr_principal = NULL; + svc->cr_gss_mech = NULL; +} +EXPORT_SYMBOL_GPL(rpcauth_map_to_svc_cred_local); + char * rpcauth_stringify_acceptor(struct rpc_cred *cred) {
--
2.44.0