From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965241Ab3BMSC7 (ORCPT ); Wed, 13 Feb 2013 13:02:59 -0500 Received: from out02.mta.xmission.com ([166.70.13.232]:52119 "EHLO out02.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965198Ab3BMSCw (ORCPT ); Wed, 13 Feb 2013 13:02:52 -0500 From: "Eric W. Biederman" To: Cc: Linux Containers , , "Serge E. Hallyn" , "Eric W. Biederman" , "J. Bruce Fields" , Trond Myklebust Date: Wed, 13 Feb 2013 09:51:59 -0800 Message-Id: <1360777934-5663-70-git-send-email-ebiederm@xmission.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1360777934-5663-1-git-send-email-ebiederm@xmission.com> References: <87621w14vs.fsf@xmission.com> <1360777934-5663-1-git-send-email-ebiederm@xmission.com> X-XM-AID: U2FsdGVkX18dBQABkGIdHSI/oX6rZCDiT2V9T51k0CM= X-SA-Exim-Connect-IP: 98.207.153.68 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.1 XMSubLong Long Subject * 0.0 T_TM2_M_HEADER_IN_MSG BODY: T_TM2_M_HEADER_IN_MSG * -3.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0046] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa07 1397; Body=1 Fuz1=1] * 0.0 T_TooManySym_01 4+ unique symbols in subject * 0.0 T_XMDrugObfuBody_08 obfuscated drug references X-Spam-DCC: XMission; sa07 1397; Body=1 Fuz1=1 X-Spam-Combo: ; X-Spam-Relay-Country: Subject: [PATCH review 70/85] nfsd: Store ex_anon_uid and ex_anon_gid as kuids and kgids X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Wed, 14 Nov 2012 14:26:46 -0700) X-SA-Exim-Scanned: Yes (on in02.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Eric W. Biederman" Cc: "J. Bruce Fields" Cc: Trond Myklebust Signed-off-by: "Eric W. Biederman" --- fs/nfsd/auth.c | 2 +- fs/nfsd/export.c | 22 ++++++++++++++-------- 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 34a10d7..4d6642b 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 a3946cf..5681c59 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 24c1392..7898c99 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; -- 1.7.5.4