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| author | Weston Andros Adamson <dros@primarydata.com> | 2024-09-05 15:09:46 -0400 |
|---|---|---|
| committer | Anna Schumaker <anna.schumaker@oracle.com> | 2024-09-23 15:03:30 -0400 |
| commit | 199f2128741077087a2ab33889a6868830465033 (patch) | |
| tree | fb45fe4082584cc5aca296c625ce2f99629c0a7f /include/linux/sunrpc | |
| parent | 2c8919848de1e5c881fe3473645c26a1c2a927f2 (diff) | |
| download | linux-stable-199f2128741077087a2ab33889a6868830465033.tar.gz linux-stable-199f2128741077087a2ab33889a6868830465033.tar.bz2 linux-stable-199f2128741077087a2ab33889a6868830465033.zip | |
SUNRPC: add svcauth_map_clnt_to_svc_cred_local
Add new funtion svcauth_map_clnt_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.
Following from net/sunrpc/auth_unix.c:unx_marshal() it is clear that
->fsuid and ->fsgid must be used (rather than ->uid and ->gid). In
addition, these uid and gid must be translated with from_kuid_munged()
so local client uses correct uid and gid when acting as local server.
Jeff Layton noted:
This is where the magic happens. Since we're working in
kuid_t/kgid_t, we don't need to worry about further idmapping.
Suggested-by: NeilBrown <neilb@suse.de> # to approximate unx_marshal()
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Co-developed-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Diffstat (limited to 'include/linux/sunrpc')
| -rw-r--r-- | include/linux/sunrpc/svcauth.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h index 63cf6fb26dcc..2e111153f7cd 100644 --- a/include/linux/sunrpc/svcauth.h +++ b/include/linux/sunrpc/svcauth.h @@ -14,6 +14,7 @@ #include <linux/sunrpc/msg_prot.h> #include <linux/sunrpc/cache.h> #include <linux/sunrpc/gss_api.h> +#include <linux/sunrpc/clnt.h> #include <linux/hash.h> #include <linux/stringhash.h> #include <linux/cred.h> @@ -157,6 +158,10 @@ extern enum svc_auth_status svc_set_client(struct svc_rqst *rqstp); extern int svc_auth_register(rpc_authflavor_t flavor, struct auth_ops *aops); extern void svc_auth_unregister(rpc_authflavor_t flavor); +extern void svcauth_map_clnt_to_svc_cred_local(struct rpc_clnt *clnt, + const struct cred *, + struct svc_cred *); + extern struct auth_domain *unix_domain_find(char *name); extern void auth_domain_put(struct auth_domain *item); extern struct auth_domain *auth_domain_lookup(char *name, struct auth_domain *new); |