diff options
Diffstat (limited to 'fs/nfsd/nfs4idmap.c')
| -rw-r--r-- | fs/nfsd/nfs4idmap.c | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c index a1f10c0a6255..0ce12346df9c 100644 --- a/fs/nfsd/nfs4idmap.c +++ b/fs/nfsd/nfs4idmap.c @@ -65,7 +65,7 @@ MODULE_PARM_DESC(nfs4_disable_idmapping, struct ent { struct cache_head h; int type; /* User / Group */ - uid_t id; + u32 id; char name[IDMAP_NAMESZ]; char authname[IDMAP_NAMESZ]; }; @@ -540,7 +540,7 @@ rqst_authname(struct svc_rqst *rqstp) static __be32 idmap_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen, - uid_t *id) + u32 *id) { struct ent *item, key = { .type = type, @@ -564,7 +564,7 @@ idmap_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen } static int -idmap_id_to_name(struct svc_rqst *rqstp, int type, uid_t id, char *name) +idmap_id_to_name(struct svc_rqst *rqstp, int type, u32 id, char *name) { struct ent *item, key = { .id = id, @@ -587,7 +587,7 @@ idmap_id_to_name(struct svc_rqst *rqstp, int type, uid_t id, char *name) } static bool -numeric_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen, uid_t *id) +numeric_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen, u32 *id) { int ret; char buf[11]; @@ -603,7 +603,7 @@ numeric_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namel } static __be32 -do_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen, uid_t *id) +do_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen, u32 *id) { if (nfs4_disable_idmapping && rqstp->rq_cred.cr_flavor < RPC_AUTH_GSS) if (numeric_name_to_id(rqstp, type, name, namelen, id)) @@ -616,7 +616,7 @@ do_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen, u } static int -do_id_to_name(struct svc_rqst *rqstp, int type, uid_t id, char *name) +do_id_to_name(struct svc_rqst *rqstp, int type, u32 id, char *name) { if (nfs4_disable_idmapping && rqstp->rq_cred.cr_flavor < RPC_AUTH_GSS) return sprintf(name, "%u", id); @@ -625,26 +625,40 @@ do_id_to_name(struct svc_rqst *rqstp, int type, uid_t id, char *name) __be32 nfsd_map_name_to_uid(struct svc_rqst *rqstp, const char *name, size_t namelen, - __u32 *id) + kuid_t *uid) { - return do_name_to_id(rqstp, IDMAP_TYPE_USER, name, namelen, id); + __be32 status; + u32 id = -1; + status = do_name_to_id(rqstp, IDMAP_TYPE_USER, name, namelen, &id); + *uid = make_kuid(&init_user_ns, id); + if (!uid_valid(*uid)) + status = nfserr_badowner; + return status; } __be32 nfsd_map_name_to_gid(struct svc_rqst *rqstp, const char *name, size_t namelen, - __u32 *id) + kgid_t *gid) { - return do_name_to_id(rqstp, IDMAP_TYPE_GROUP, name, namelen, id); + __be32 status; + u32 id = -1; + status = do_name_to_id(rqstp, IDMAP_TYPE_GROUP, name, namelen, &id); + *gid = make_kgid(&init_user_ns, id); + if (!gid_valid(*gid)) + status = nfserr_badowner; + return status; } int -nfsd_map_uid_to_name(struct svc_rqst *rqstp, __u32 id, char *name) +nfsd_map_uid_to_name(struct svc_rqst *rqstp, kuid_t uid, char *name) { + u32 id = from_kuid(&init_user_ns, uid); return do_id_to_name(rqstp, IDMAP_TYPE_USER, id, name); } int -nfsd_map_gid_to_name(struct svc_rqst *rqstp, __u32 id, char *name) +nfsd_map_gid_to_name(struct svc_rqst *rqstp, kgid_t gid, char *name) { + u32 id = from_kgid(&init_user_ns, gid); return do_id_to_name(rqstp, IDMAP_TYPE_GROUP, id, name); } |