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Commit 4c1e1b34 authored by Eric W. Biederman's avatar Eric W. Biederman
Browse files

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: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
parent 03bc6d1c

fs/nfsd/auth.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

		}

fs/nfsd/export.c

+14 −8
Original line number Diff line number Diff line
@@ -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 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen) 
}



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;

include/linux/nfsd/export.h

+2 −2
Original line number Diff line number Diff line
@@ -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;