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Diffstat (limited to 'drivers/staging/lustre/lustre/ptlrpc/gss/gss_cli_upcall.c')
-rw-r--r--drivers/staging/lustre/lustre/ptlrpc/gss/gss_cli_upcall.c446
1 files changed, 0 insertions, 446 deletions
diff --git a/drivers/staging/lustre/lustre/ptlrpc/gss/gss_cli_upcall.c b/drivers/staging/lustre/lustre/ptlrpc/gss/gss_cli_upcall.c
deleted file mode 100644
index c279edf5b2a5..000000000000
--- a/drivers/staging/lustre/lustre/ptlrpc/gss/gss_cli_upcall.c
+++ /dev/null
@@ -1,446 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/ptlrpc/gss/gss_cli_upcall.c
- *
- * Author: Eric Mei <ericm@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_SEC
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/dcache.h>
-#include <linux/fs.h>
-#include <linux/mutex.h>
-
-#include <obd.h>
-#include <obd_class.h>
-#include <obd_support.h>
-#include <lustre/lustre_idl.h>
-#include <lustre_net.h>
-#include <lustre_import.h>
-#include <lustre_sec.h>
-
-#include "gss_err.h"
-#include "gss_internal.h"
-#include "gss_api.h"
-
-/**********************************************
- * gss context init/fini helper *
- **********************************************/
-
-static
-int ctx_init_pack_request(struct obd_import *imp,
- struct ptlrpc_request *req,
- int lustre_srv,
- uid_t uid, gid_t gid,
- long token_size,
- char __user *token)
-{
- struct lustre_msg *msg = req->rq_reqbuf;
- struct gss_sec *gsec;
- struct gss_header *ghdr;
- struct ptlrpc_user_desc *pud;
- __u32 *p, size, offset = 2;
- rawobj_t obj;
-
- LASSERT(msg->lm_bufcount <= 4);
- LASSERT(req->rq_cli_ctx);
- LASSERT(req->rq_cli_ctx->cc_sec);
-
- /* gss hdr */
- ghdr = lustre_msg_buf(msg, 0, sizeof(*ghdr));
- ghdr->gh_version = PTLRPC_GSS_VERSION;
- ghdr->gh_sp = (__u8) imp->imp_sec->ps_part;
- ghdr->gh_flags = 0;
- ghdr->gh_proc = PTLRPC_GSS_PROC_INIT;
- ghdr->gh_seq = 0;
- ghdr->gh_svc = SPTLRPC_SVC_NULL;
- ghdr->gh_handle.len = 0;
-
- /* fix the user desc */
- if (req->rq_pack_udesc) {
- ghdr->gh_flags |= LUSTRE_GSS_PACK_USER;
-
- pud = lustre_msg_buf(msg, offset, sizeof(*pud));
- LASSERT(pud);
- pud->pud_uid = pud->pud_fsuid = uid;
- pud->pud_gid = pud->pud_fsgid = gid;
- pud->pud_cap = 0;
- pud->pud_ngroups = 0;
- offset++;
- }
-
- /* security payload */
- p = lustre_msg_buf(msg, offset, 0);
- size = msg->lm_buflens[offset];
- LASSERT(p);
-
- /* 1. lustre svc type */
- LASSERT(size > 4);
- *p++ = cpu_to_le32(lustre_srv);
- size -= 4;
-
- /* 2. target uuid */
- obj.len = strlen(imp->imp_obd->u.cli.cl_target_uuid.uuid) + 1;
- obj.data = imp->imp_obd->u.cli.cl_target_uuid.uuid;
- if (rawobj_serialize(&obj, &p, &size))
- LBUG();
-
- /* 3. reverse context handle. actually only needed by root user,
- * but we send it anyway. */
- gsec = sec2gsec(req->rq_cli_ctx->cc_sec);
- obj.len = sizeof(gsec->gs_rvs_hdl);
- obj.data = (__u8 *) &gsec->gs_rvs_hdl;
- if (rawobj_serialize(&obj, &p, &size))
- LBUG();
-
- /* 4. now the token */
- LASSERT(size >= (sizeof(__u32) + token_size));
- *p++ = cpu_to_le32(((__u32) token_size));
- if (copy_from_user(p, token, token_size)) {
- CERROR("can't copy token\n");
- return -EFAULT;
- }
- size -= sizeof(__u32) + cfs_size_round4(token_size);
-
- req->rq_reqdata_len = lustre_shrink_msg(req->rq_reqbuf, offset,
- msg->lm_buflens[offset] - size, 0);
- return 0;
-}
-
-static
-int ctx_init_parse_reply(struct lustre_msg *msg, int swabbed,
- char __user *outbuf, long outlen)
-{
- struct gss_rep_header *ghdr;
- __u32 obj_len, round_len;
- __u32 status, effective = 0;
-
- if (msg->lm_bufcount != 3) {
- CERROR("unexpected bufcount %u\n", msg->lm_bufcount);
- return -EPROTO;
- }
-
- ghdr = (struct gss_rep_header *) gss_swab_header(msg, 0, swabbed);
- if (ghdr == NULL) {
- CERROR("unable to extract gss reply header\n");
- return -EPROTO;
- }
-
- if (ghdr->gh_version != PTLRPC_GSS_VERSION) {
- CERROR("invalid gss version %u\n", ghdr->gh_version);
- return -EPROTO;
- }
-
- if (outlen < (4 + 2) * 4 + cfs_size_round4(ghdr->gh_handle.len) +
- cfs_size_round4(msg->lm_buflens[2])) {
- CERROR("output buffer size %ld too small\n", outlen);
- return -EFAULT;
- }
-
- status = 0;
- effective = 0;
-
- if (copy_to_user(outbuf, &status, 4))
- return -EFAULT;
- outbuf += 4;
- if (copy_to_user(outbuf, &ghdr->gh_major, 4))
- return -EFAULT;
- outbuf += 4;
- if (copy_to_user(outbuf, &ghdr->gh_minor, 4))
- return -EFAULT;
- outbuf += 4;
- if (copy_to_user(outbuf, &ghdr->gh_seqwin, 4))
- return -EFAULT;
- outbuf += 4;
- effective += 4 * 4;
-
- /* handle */
- obj_len = ghdr->gh_handle.len;
- round_len = (obj_len + 3) & ~ 3;
- if (copy_to_user(outbuf, &obj_len, 4))
- return -EFAULT;
- outbuf += 4;
- if (copy_to_user(outbuf, (char *) ghdr->gh_handle.data, round_len))
- return -EFAULT;
- outbuf += round_len;
- effective += 4 + round_len;
-
- /* out token */
- obj_len = msg->lm_buflens[2];
- round_len = (obj_len + 3) & ~ 3;
- if (copy_to_user(outbuf, &obj_len, 4))
- return -EFAULT;
- outbuf += 4;
- if (copy_to_user(outbuf, lustre_msg_buf(msg, 2, 0), round_len))
- return -EFAULT;
- outbuf += round_len;
- effective += 4 + round_len;
-
- return effective;
-}
-
-/* XXX move to where lgssd could see */
-struct lgssd_ioctl_param {
- int version; /* in */
- int secid; /* in */
- char *uuid; /* in */
- int lustre_svc; /* in */
- uid_t uid; /* in */
- gid_t gid; /* in */
- long send_token_size;/* in */
- char *send_token; /* in */
- long reply_buf_size; /* in */
- char *reply_buf; /* in */
- long status; /* out */
- long reply_length; /* out */
-};
-
-int gss_do_ctx_init_rpc(__user char *buffer, unsigned long count)
-{
- struct obd_import *imp;
- struct ptlrpc_request *req;
- struct lgssd_ioctl_param param;
- struct obd_device *obd;
- char obdname[64];
- long lsize;
- int rc;
-
- if (count != sizeof(param)) {
- CERROR("ioctl size %lu, expect %lu, please check lgss_keyring "
- "version\n", count, (unsigned long) sizeof(param));
- return -EINVAL;
- }
- if (copy_from_user(&param, buffer, sizeof(param))) {
- CERROR("failed copy data from lgssd\n");
- return -EFAULT;
- }
-
- if (param.version != GSSD_INTERFACE_VERSION) {
- CERROR("gssd interface version %d (expect %d)\n",
- param.version, GSSD_INTERFACE_VERSION);
- return -EINVAL;
- }
-
- /* take name */
- if (strncpy_from_user(obdname, param.uuid, sizeof(obdname)) <= 0) {
- CERROR("Invalid obdname pointer\n");
- return -EFAULT;
- }
-
- obd = class_name2obd(obdname);
- if (!obd) {
- CERROR("no such obd %s\n", obdname);
- return -EINVAL;
- }
-
- if (unlikely(!obd->obd_set_up)) {
- CERROR("obd %s not setup\n", obdname);
- return -EINVAL;
- }
-
- spin_lock(&obd->obd_dev_lock);
- if (obd->obd_stopping) {
- CERROR("obd %s has stopped\n", obdname);
- spin_unlock(&obd->obd_dev_lock);
- return -EINVAL;
- }
-
- if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
- strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) &&
- strcmp(obd->obd_type->typ_name, LUSTRE_MGC_NAME)) {
- CERROR("obd %s is not a client device\n", obdname);
- spin_unlock(&obd->obd_dev_lock);
- return -EINVAL;
- }
- spin_unlock(&obd->obd_dev_lock);
-
- down_read(&obd->u.cli.cl_sem);
- if (obd->u.cli.cl_import == NULL) {
- CERROR("obd %s: import has gone\n", obd->obd_name);
- up_read(&obd->u.cli.cl_sem);
- return -EINVAL;
- }
- imp = class_import_get(obd->u.cli.cl_import);
- up_read(&obd->u.cli.cl_sem);
-
- if (imp->imp_deactive) {
- CERROR("import has been deactivated\n");
- class_import_put(imp);
- return -EINVAL;
- }
-
- req = ptlrpc_request_alloc_pack(imp, &RQF_SEC_CTX, LUSTRE_OBD_VERSION,
- SEC_CTX_INIT);
- if (req == NULL) {
- param.status = -ENOMEM;
- goto out_copy;
- }
-
- if (req->rq_cli_ctx->cc_sec->ps_id != param.secid) {
- CWARN("original secid %d, now has changed to %d, "
- "cancel this negotiation\n", param.secid,
- req->rq_cli_ctx->cc_sec->ps_id);
- param.status = -EINVAL;
- goto out_copy;
- }
-
- /* get token */
- rc = ctx_init_pack_request(imp, req,
- param.lustre_svc,
- param.uid, param.gid,
- param.send_token_size,
- param.send_token);
- if (rc) {
- param.status = rc;
- goto out_copy;
- }
-
- ptlrpc_request_set_replen(req);
-
- rc = ptlrpc_queue_wait(req);
- if (rc) {
- /* If any _real_ denial be made, we expect server return
- * -EACCES reply or return success but indicate gss error
- * inside reply message. All other errors are treated as
- * timeout, caller might try the negotiation repeatedly,
- * leave recovery decisions to general ptlrpc layer.
- *
- * FIXME maybe some other error code shouldn't be treated
- * as timeout. */
- param.status = rc;
- if (rc != -EACCES)
- param.status = -ETIMEDOUT;
- goto out_copy;
- }
-
- LASSERT(req->rq_repdata);
- lsize = ctx_init_parse_reply(req->rq_repdata,
- ptlrpc_rep_need_swab(req),
- param.reply_buf, param.reply_buf_size);
- if (lsize < 0) {
- param.status = (int) lsize;
- goto out_copy;
- }
-
- param.status = 0;
- param.reply_length = lsize;
-
-out_copy:
- if (copy_to_user(buffer, &param, sizeof(param)))
- rc = -EFAULT;
- else
- rc = 0;
-
- class_import_put(imp);
- ptlrpc_req_finished(req);
- return rc;
-}
-
-int gss_do_ctx_fini_rpc(struct gss_cli_ctx *gctx)
-{
- struct ptlrpc_cli_ctx *ctx = &gctx->gc_base;
- struct obd_import *imp = ctx->cc_sec->ps_import;
- struct ptlrpc_request *req;
- struct ptlrpc_user_desc *pud;
- int rc;
-
- LASSERT(atomic_read(&ctx->cc_refcount) > 0);
-
- if (cli_ctx_is_error(ctx) || !cli_ctx_is_uptodate(ctx)) {
- CDEBUG(D_SEC, "ctx %p(%u->%s) not uptodate, "
- "don't send destroy rpc\n", ctx,
- ctx->cc_vcred.vc_uid, sec2target_str(ctx->cc_sec));
- return 0;
- }
-
- might_sleep();
-
- CWARN("%s ctx %p idx "LPX64" (%u->%s)\n",
- sec_is_reverse(ctx->cc_sec) ?
- "server finishing reverse" : "client finishing forward",
- ctx, gss_handle_to_u64(&gctx->gc_handle),
- ctx->cc_vcred.vc_uid, sec2target_str(ctx->cc_sec));
-
- gctx->gc_proc = PTLRPC_GSS_PROC_DESTROY;
-
- req = ptlrpc_request_alloc(imp, &RQF_SEC_CTX);
- if (req == NULL) {
- CWARN("ctx %p(%u): fail to prepare rpc, destroy locally\n",
- ctx, ctx->cc_vcred.vc_uid);
- GOTO(out, rc = -ENOMEM);
- }
-
- rc = ptlrpc_request_bufs_pack(req, LUSTRE_OBD_VERSION, SEC_CTX_FINI,
- NULL, ctx);
- if (rc) {
- ptlrpc_request_free(req);
- GOTO(out_ref, rc);
- }
-
- /* fix the user desc */
- if (req->rq_pack_udesc) {
- /* we rely the fact that this request is in AUTH mode,
- * and user_desc at offset 2. */
- pud = lustre_msg_buf(req->rq_reqbuf, 2, sizeof(*pud));
- LASSERT(pud);
- pud->pud_uid = pud->pud_fsuid = ctx->cc_vcred.vc_uid;
- pud->pud_gid = pud->pud_fsgid = ctx->cc_vcred.vc_gid;
- pud->pud_cap = 0;
- pud->pud_ngroups = 0;
- }
-
- req->rq_phase = RQ_PHASE_RPC;
- rc = ptl_send_rpc(req, 1);
- if (rc)
- CWARN("ctx %p(%u->%s): rpc error %d, destroy locally\n", ctx,
- ctx->cc_vcred.vc_uid, sec2target_str(ctx->cc_sec), rc);
-
-out_ref:
- ptlrpc_req_finished(req);
-out:
- return rc;
-}
-
-int __init gss_init_cli_upcall(void)
-{
- return 0;
-}
-
-void __exit gss_exit_cli_upcall(void)
-{
-}
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