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| author | Eric W. Biederman <ebiederm@xmission.com> | 2013-02-02 06:42:53 -0800 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2013-02-13 06:16:08 -0800 |
| commit | 4c1e1b34d5c800ad3ac9a7e2805b0bea70ad2278 (patch) | |
| tree | 1d52d5be323c160ae98f35dd32c7f8109879354d | |
| parent | 03bc6d1cc1759e6b5959cacc02a19ef36e95e741 (diff) | |
| download | lwn-4c1e1b34d5c800ad3ac9a7e2805b0bea70ad2278.tar.gz lwn-4c1e1b34d5c800ad3ac9a7e2805b0bea70ad2278.zip | |
nfsd: Store ex_anon_uid and ex_anon_gid as kuids and kgids
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
| -rw-r--r-- | fs/nfsd/auth.c | 2 | ||||
| -rw-r--r-- | fs/nfsd/export.c | 22 | ||||
| -rw-r--r-- | include/linux/nfsd/export.h | 4 |
3 files changed, 17 insertions, 11 deletions
diff --git a/fs/nfsd/auth.c b/fs/nfsd/auth.c index 34a10d78b839..4d6642b38eae 100644 --- a/fs/nfsd/auth.c +++ b/fs/nfsd/auth.c @@ -58,7 +58,7 @@ int nfsd_setuser(struct svc_rqst *rqstp, struct svc_export *exp) for (i = 0; i < rqgi->ngroups; i++) { if (gid_eq(GLOBAL_ROOT_GID, GROUP_AT(rqgi, i))) - GROUP_AT(gi, i) = make_kgid(&init_user_ns, exp->ex_anon_gid); + GROUP_AT(gi, i) = exp->ex_anon_gid; else GROUP_AT(gi, i) = GROUP_AT(rqgi, i); } diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index a3946cf13fc8..5681c5906f08 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -544,13 +544,17 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen) err = get_int(&mesg, &an_int); if (err) goto out3; - exp.ex_anon_uid= an_int; + exp.ex_anon_uid= make_kuid(&init_user_ns, an_int); + if (!uid_valid(exp.ex_anon_uid)) + goto out3; /* anon gid */ err = get_int(&mesg, &an_int); if (err) goto out3; - exp.ex_anon_gid= an_int; + exp.ex_anon_gid= make_kgid(&init_user_ns, an_int); + if (!gid_valid(exp.ex_anon_gid)) + goto out3; /* fsid */ err = get_int(&mesg, &an_int); @@ -613,7 +617,7 @@ out: } static void exp_flags(struct seq_file *m, int flag, int fsid, - uid_t anonu, uid_t anong, struct nfsd4_fs_locations *fslocs); + kuid_t anonu, kgid_t anong, struct nfsd4_fs_locations *fslocs); static void show_secinfo(struct seq_file *m, struct svc_export *exp); static int svc_export_show(struct seq_file *m, @@ -1179,15 +1183,17 @@ static void show_secinfo(struct seq_file *m, struct svc_export *exp) } static void exp_flags(struct seq_file *m, int flag, int fsid, - uid_t anonu, uid_t anong, struct nfsd4_fs_locations *fsloc) + kuid_t anonu, kgid_t anong, struct nfsd4_fs_locations *fsloc) { show_expflags(m, flag, NFSEXP_ALLFLAGS); if (flag & NFSEXP_FSID) seq_printf(m, ",fsid=%d", fsid); - if (anonu != (uid_t)-2 && anonu != (0x10000-2)) - seq_printf(m, ",anonuid=%u", anonu); - if (anong != (gid_t)-2 && anong != (0x10000-2)) - seq_printf(m, ",anongid=%u", anong); + if (!uid_eq(anonu, make_kuid(&init_user_ns, (uid_t)-2)) && + !uid_eq(anonu, make_kuid(&init_user_ns, 0x10000-2))) + seq_printf(m, ",anonuid=%u", from_kuid(&init_user_ns, anonu)); + if (!gid_eq(anong, make_kgid(&init_user_ns, (gid_t)-2)) && + !gid_eq(anong, make_kgid(&init_user_ns, 0x10000-2))) + seq_printf(m, ",anongid=%u", from_kgid(&init_user_ns, anong)); if (fsloc && fsloc->locations_count > 0) { char *loctype = (fsloc->migrated) ? "refer" : "replicas"; int i; diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h index 24c139288db4..7898c997dfea 100644 --- a/include/linux/nfsd/export.h +++ b/include/linux/nfsd/export.h @@ -49,8 +49,8 @@ struct svc_export { struct auth_domain * ex_client; int ex_flags; struct path ex_path; - uid_t ex_anon_uid; - gid_t ex_anon_gid; + kuid_t ex_anon_uid; + kgid_t ex_anon_gid; int ex_fsid; unsigned char * ex_uuid; /* 16 byte fsid */ struct nfsd4_fs_locations ex_fslocs; |