/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2004-2006 Cluster File Systems, Inc.
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * 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.
*
- * Lustre 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 for more details.
+ * 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
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef _LUSTRE_SEC_H_
#define _LUSTRE_SEC_H_
+/** \defgroup sptlrpc sptlrpc
+ *
+ * @{
+ */
+
/*
* to avoid include
*/
struct obd_import;
+struct obd_export;
struct ptlrpc_request;
struct ptlrpc_reply_state;
struct ptlrpc_bulk_desc;
struct brw_page;
+/* Linux specific */
+struct key;
+struct seq_file;
/*
* forward declaration
struct ptlrpc_cli_ctx;
struct ptlrpc_ctx_ops;
+/**
+ * \addtogroup flavor flavor
+ *
+ * RPC flavor is represented by a 32 bits integer. Currently the high 12 bits
+ * are unused, must be set to 0 for future expansion.
+ * <pre>
+ * ------------------------------------------------------------------------
+ * | 4b (bulk svc) | 4b (bulk type) | 4b (svc) | 4b (mech) | 4b (policy) |
+ * ------------------------------------------------------------------------
+ * </pre>
+ *
+ * @{
+ */
+
/*
* flavor constants
*/
-enum sptlrpc_policies {
+enum sptlrpc_policy {
SPTLRPC_POLICY_NULL = 0,
SPTLRPC_POLICY_PLAIN = 1,
SPTLRPC_POLICY_GSS = 2,
SPTLRPC_POLICY_MAX,
};
-enum sptlrpc_subpolicy_null {
- SPTLRPC_SUBPOLICY_NULL = 0,
- SPTLRPC_SUBPOLICY_NULL_MAX,
+enum sptlrpc_mech_null {
+ SPTLRPC_MECH_NULL = 0,
+ SPTLRPC_MECH_NULL_MAX,
};
-enum sptlrpc_subpolicy_plain {
- SPTLRPC_SUBPOLICY_PLAIN = 0,
- SPTLRPC_SUBPOLICY_PLAIN_MAX,
+enum sptlrpc_mech_plain {
+ SPTLRPC_MECH_PLAIN = 0,
+ SPTLRPC_MECH_PLAIN_MAX,
};
-enum sptlrpc_subpolicy_gss {
- SPTLRPC_SUBPOLICY_GSS_NONE = 0,
- SPTLRPC_SUBPOLICY_GSS_KRB5 = 1,
- SPTLRPC_SUBPOLICY_GSS_MAX,
+enum sptlrpc_mech_gss {
+ SPTLRPC_MECH_GSS_NULL = 0,
+ SPTLRPC_MECH_GSS_KRB5 = 1,
+ SPTLRPC_MECH_GSS_MAX,
};
enum sptlrpc_service_type {
- SPTLRPC_SVC_NONE = 0, /* no security */
- SPTLRPC_SVC_AUTH = 1, /* authentication */
- SPTLRPC_SVC_PRIV = 2, /* privacy */
+ SPTLRPC_SVC_NULL = 0, /**< no security */
+ SPTLRPC_SVC_AUTH = 1, /**< authentication only */
+ SPTLRPC_SVC_INTG = 2, /**< integrity */
+ SPTLRPC_SVC_PRIV = 3, /**< privacy */
SPTLRPC_SVC_MAX,
};
-/*
- * flavor compose/extract
- */
+enum sptlrpc_bulk_type {
+ SPTLRPC_BULK_DEFAULT = 0, /**< follow rpc flavor */
+ SPTLRPC_BULK_HASH = 1, /**< hash integrity */
+ SPTLRPC_BULK_MAX,
+};
-typedef __u32 ptlrpc_sec_flavor_t;
+enum sptlrpc_bulk_service {
+ SPTLRPC_BULK_SVC_NULL = 0, /**< no security */
+ SPTLRPC_BULK_SVC_AUTH = 1, /**< authentication only */
+ SPTLRPC_BULK_SVC_INTG = 2, /**< integrity */
+ SPTLRPC_BULK_SVC_PRIV = 3, /**< privacy */
+ SPTLRPC_BULK_SVC_MAX,
+};
/*
- * 8b (reserved) | 8b (flags) | 6b (policy) | 6b (subpolicy) | 4b (svc)
- */
-#define SEC_FLAVOR_FLAGS_OFFSET (16)
-#define SEC_FLAVOR_POLICY_OFFSET (10)
-#define SEC_FLAVOR_SUBPOLICY_OFFSET (4)
-#define SEC_FLAVOR_SVC_OFFSET (0)
-
-#define SEC_MAKE_RPC_FLAVOR(policy, subpolicy, svc) \
- (((__u32)(policy) << SEC_FLAVOR_POLICY_OFFSET) | \
- ((__u32)(subpolicy) << SEC_FLAVOR_SUBPOLICY_OFFSET) | \
- ((__u32)(svc) << SEC_FLAVOR_SVC_OFFSET))
-
-#define SEC_MAKE_RPC_SUBFLAVOR(subpolicy, svc) \
- (((__u32)(subpolicy) << SEC_FLAVOR_SUBPOLICY_OFFSET) | \
- ((__u32)(svc) << SEC_FLAVOR_SVC_OFFSET))
-
-#define SEC_FLAVOR_POLICY(flavor) \
- ((((__u32)(flavor)) >> SEC_FLAVOR_POLICY_OFFSET) & 0x3F)
-#define SEC_FLAVOR_SUBPOLICY(flavor) \
- ((((__u32)(flavor)) >> SEC_FLAVOR_SUBPOLICY_OFFSET) & 0x3F)
-#define SEC_FLAVOR_SVC(flavor) \
- ((((__u32)(flavor)) >> SEC_FLAVOR_SVC_OFFSET) & 0xF)
-#define SEC_FLAVOR_SUB(flavor) \
- ((((__u32)(flavor)) >> SEC_FLAVOR_SVC_OFFSET) & 0x3FF)
-
-#define SEC_FLAVOR_RPC(f) \
- (((__u32) f) & ((1 << SEC_FLAVOR_FLAGS_OFFSET) - 1))
+ * compose/extract macros
+ */
+#define FLVR_POLICY_OFFSET (0)
+#define FLVR_MECH_OFFSET (4)
+#define FLVR_SVC_OFFSET (8)
+#define FLVR_BULK_TYPE_OFFSET (12)
+#define FLVR_BULK_SVC_OFFSET (16)
+
+#define MAKE_FLVR(policy, mech, svc, btype, bsvc) \
+ (((__u32)(policy) << FLVR_POLICY_OFFSET) | \
+ ((__u32)(mech) << FLVR_MECH_OFFSET) | \
+ ((__u32)(svc) << FLVR_SVC_OFFSET) | \
+ ((__u32)(btype) << FLVR_BULK_TYPE_OFFSET) | \
+ ((__u32)(bsvc) << FLVR_BULK_SVC_OFFSET))
/*
- * general gss flavors
- */
-#define SPTLRPC_FLVR_GSS_NONE \
- SEC_MAKE_RPC_FLAVOR(SPTLRPC_POLICY_GSS, \
- SPTLRPC_SUBPOLICY_GSS_NONE, \
- SPTLRPC_SVC_NONE)
-#define SPTLRPC_FLVR_GSS_AUTH \
- SEC_MAKE_RPC_FLAVOR(SPTLRPC_POLICY_GSS, \
- SPTLRPC_SUBPOLICY_GSS_NONE, \
- SPTLRPC_SVC_AUTH)
-#define SPTLRPC_FLVR_GSS_PRIV \
- SEC_MAKE_RPC_FLAVOR(SPTLRPC_POLICY_GSS, \
- SPTLRPC_SUBPOLICY_GSS_NONE, \
- SPTLRPC_SVC_PRIV)
+ * extraction
+ */
+#define SPTLRPC_FLVR_POLICY(flavor) \
+ ((((__u32)(flavor)) >> FLVR_POLICY_OFFSET) & 0xF)
+#define SPTLRPC_FLVR_MECH(flavor) \
+ ((((__u32)(flavor)) >> FLVR_MECH_OFFSET) & 0xF)
+#define SPTLRPC_FLVR_SVC(flavor) \
+ ((((__u32)(flavor)) >> FLVR_SVC_OFFSET) & 0xF)
+#define SPTLRPC_FLVR_BULK_TYPE(flavor) \
+ ((((__u32)(flavor)) >> FLVR_BULK_TYPE_OFFSET) & 0xF)
+#define SPTLRPC_FLVR_BULK_SVC(flavor) \
+ ((((__u32)(flavor)) >> FLVR_BULK_SVC_OFFSET) & 0xF)
+
+#define SPTLRPC_FLVR_BASE(flavor) \
+ ((((__u32)(flavor)) >> FLVR_POLICY_OFFSET) & 0xFFF)
+#define SPTLRPC_FLVR_BASE_SUB(flavor) \
+ ((((__u32)(flavor)) >> FLVR_MECH_OFFSET) & 0xFF)
/*
* gss subflavors
*/
-#define SPTLRPC_SUBFLVR_KRB5 \
- SEC_MAKE_RPC_SUBFLAVOR(SPTLRPC_SUBPOLICY_GSS_KRB5, \
- SPTLRPC_SVC_NONE)
-#define SPTLRPC_SUBFLVR_KRB5I \
- SEC_MAKE_RPC_SUBFLAVOR(SPTLRPC_SUBPOLICY_GSS_KRB5, \
- SPTLRPC_SVC_AUTH)
-#define SPTLRPC_SUBFLVR_KRB5P \
- SEC_MAKE_RPC_SUBFLAVOR(SPTLRPC_SUBPOLICY_GSS_KRB5, \
- SPTLRPC_SVC_PRIV)
+#define MAKE_BASE_SUBFLVR(mech, svc) \
+ ((__u32)(mech) | \
+ ((__u32)(svc) << (FLVR_SVC_OFFSET - FLVR_MECH_OFFSET)))
+
+#define SPTLRPC_SUBFLVR_KRB5N \
+ MAKE_BASE_SUBFLVR(SPTLRPC_MECH_GSS_KRB5, SPTLRPC_SVC_NULL)
+#define SPTLRPC_SUBFLVR_KRB5A \
+ MAKE_BASE_SUBFLVR(SPTLRPC_MECH_GSS_KRB5, SPTLRPC_SVC_AUTH)
+#define SPTLRPC_SUBFLVR_KRB5I \
+ MAKE_BASE_SUBFLVR(SPTLRPC_MECH_GSS_KRB5, SPTLRPC_SVC_INTG)
+#define SPTLRPC_SUBFLVR_KRB5P \
+ MAKE_BASE_SUBFLVR(SPTLRPC_MECH_GSS_KRB5, SPTLRPC_SVC_PRIV)
/*
* "end user" flavors
*/
-#define SPTLRPC_FLVR_NULL \
- SEC_MAKE_RPC_FLAVOR(SPTLRPC_POLICY_NULL, \
- SPTLRPC_SUBPOLICY_NULL, \
- SPTLRPC_SVC_NONE)
-#define SPTLRPC_FLVR_PLAIN \
- SEC_MAKE_RPC_FLAVOR(SPTLRPC_POLICY_PLAIN, \
- SPTLRPC_SUBPOLICY_PLAIN, \
- SPTLRPC_SVC_NONE)
-#define SPTLRPC_FLVR_KRB5 \
- SEC_MAKE_RPC_FLAVOR(SPTLRPC_POLICY_GSS, \
- SPTLRPC_SUBPOLICY_GSS_KRB5, \
- SPTLRPC_SVC_NONE)
-#define SPTLRPC_FLVR_KRB5I \
- SEC_MAKE_RPC_FLAVOR(SPTLRPC_POLICY_GSS, \
- SPTLRPC_SUBPOLICY_GSS_KRB5, \
- SPTLRPC_SVC_AUTH)
-#define SPTLRPC_FLVR_KRB5P \
- SEC_MAKE_RPC_FLAVOR(SPTLRPC_POLICY_GSS, \
- SPTLRPC_SUBPOLICY_GSS_KRB5, \
- SPTLRPC_SVC_PRIV)
-
-#define SPTLRPC_FLVR_INVALID (-1)
+#define SPTLRPC_FLVR_NULL \
+ MAKE_FLVR(SPTLRPC_POLICY_NULL, \
+ SPTLRPC_MECH_NULL, \
+ SPTLRPC_SVC_NULL, \
+ SPTLRPC_BULK_DEFAULT, \
+ SPTLRPC_BULK_SVC_NULL)
+#define SPTLRPC_FLVR_PLAIN \
+ MAKE_FLVR(SPTLRPC_POLICY_PLAIN, \
+ SPTLRPC_MECH_PLAIN, \
+ SPTLRPC_SVC_NULL, \
+ SPTLRPC_BULK_HASH, \
+ SPTLRPC_BULK_SVC_INTG)
+#define SPTLRPC_FLVR_KRB5N \
+ MAKE_FLVR(SPTLRPC_POLICY_GSS, \
+ SPTLRPC_MECH_GSS_KRB5, \
+ SPTLRPC_SVC_NULL, \
+ SPTLRPC_BULK_DEFAULT, \
+ SPTLRPC_BULK_SVC_NULL)
+#define SPTLRPC_FLVR_KRB5A \
+ MAKE_FLVR(SPTLRPC_POLICY_GSS, \
+ SPTLRPC_MECH_GSS_KRB5, \
+ SPTLRPC_SVC_AUTH, \
+ SPTLRPC_BULK_DEFAULT, \
+ SPTLRPC_BULK_SVC_NULL)
+#define SPTLRPC_FLVR_KRB5I \
+ MAKE_FLVR(SPTLRPC_POLICY_GSS, \
+ SPTLRPC_MECH_GSS_KRB5, \
+ SPTLRPC_SVC_INTG, \
+ SPTLRPC_BULK_DEFAULT, \
+ SPTLRPC_BULK_SVC_INTG)
+#define SPTLRPC_FLVR_KRB5P \
+ MAKE_FLVR(SPTLRPC_POLICY_GSS, \
+ SPTLRPC_MECH_GSS_KRB5, \
+ SPTLRPC_SVC_PRIV, \
+ SPTLRPC_BULK_DEFAULT, \
+ SPTLRPC_BULK_SVC_PRIV)
#define SPTLRPC_FLVR_DEFAULT SPTLRPC_FLVR_NULL
-/*
- * flavor flags (maximum 8 flags)
+#define SPTLRPC_FLVR_INVALID ((__u32) 0xFFFFFFFF)
+#define SPTLRPC_FLVR_ANY ((__u32) 0xFFF00000)
+
+/**
+ * extract the useful part from wire flavor
*/
-#define SEC_FLAVOR_FL_BULK (1 << (0 + SEC_FLAVOR_FLAGS_OFFSET))
-#define SEC_FLAVOR_FL_USER (1 << (1 + SEC_FLAVOR_FLAGS_OFFSET))
+#define WIRE_FLVR(wflvr) (((__u32) (wflvr)) & 0x000FFFFF)
-#define SEC_FLAVOR_HAS_BULK(flavor) \
- (((flavor) & SEC_FLAVOR_FL_BULK) != 0)
-#define SEC_FLAVOR_HAS_USER(flavor) \
- (((flavor) & SEC_FLAVOR_FL_USER) != 0)
+/** @} flavor */
+static inline void flvr_set_svc(__u32 *flvr, __u32 svc)
+{
+ LASSERT(svc < SPTLRPC_SVC_MAX);
+ *flvr = MAKE_FLVR(SPTLRPC_FLVR_POLICY(*flvr),
+ SPTLRPC_FLVR_MECH(*flvr),
+ svc,
+ SPTLRPC_FLVR_BULK_TYPE(*flvr),
+ SPTLRPC_FLVR_BULK_SVC(*flvr));
+}
-struct sec_flavor_config {
- __u32 sfc_rpc_flavor; /* main rpc flavor */
- __u32 sfc_bulk_priv; /* bulk encryption algorithm */
- __u32 sfc_bulk_csum; /* bulk checksum algorithm */
- __u32 sfc_flags; /* extra flags */
+static inline void flvr_set_bulk_svc(__u32 *flvr, __u32 svc)
+{
+ LASSERT(svc < SPTLRPC_BULK_SVC_MAX);
+ *flvr = MAKE_FLVR(SPTLRPC_FLVR_POLICY(*flvr),
+ SPTLRPC_FLVR_MECH(*flvr),
+ SPTLRPC_FLVR_SVC(*flvr),
+ SPTLRPC_FLVR_BULK_TYPE(*flvr),
+ svc);
+}
+
+struct bulk_spec_hash {
+ __u8 hash_alg;
+};
+
+/**
+ * Full description of flavors being used on a ptlrpc connection, include
+ * both regular RPC and bulk transfer parts.
+ */
+struct sptlrpc_flavor {
+ /**
+ * wire flavor, should be renamed to sf_wire.
+ */
+ __u32 sf_rpc;
+ /**
+ * general flags of PTLRPC_SEC_FL_*
+ */
+ __u32 sf_flags;
+ /**
+ * rpc flavor specification
+ */
+ union {
+ /* nothing for now */
+ } u_rpc;
+ /**
+ * bulk flavor specification
+ */
+ union {
+ struct bulk_spec_hash hash;
+ } u_bulk;
+};
+
+/**
+ * identify the RPC is generated from what part of Lustre. It's encoded into
+ * RPC requests and to be checked by ptlrpc service.
+ */
+enum lustre_sec_part {
+ LUSTRE_SP_CLI = 0,
+ LUSTRE_SP_MDT,
+ LUSTRE_SP_OST,
+ LUSTRE_SP_MGC,
+ LUSTRE_SP_MGS,
+ LUSTRE_SP_ANY = 0xFF
};
-enum lustre_part {
- LUSTRE_CLI = 0,
- LUSTRE_MDT,
- LUSTRE_OST,
- LUSTRE_MGC,
- LUSTRE_MGS,
+const char *sptlrpc_part2name(enum lustre_sec_part sp);
+enum lustre_sec_part sptlrpc_target_sec_part(struct obd_device *obd);
+
+/**
+ * A rule specifies a flavor to be used by a ptlrpc connection between
+ * two Lustre parts.
+ */
+struct sptlrpc_rule {
+ __u32 sr_netid; /* LNET network ID */
+ __u8 sr_from; /* sec_part */
+ __u8 sr_to; /* sec_part */
+ __u16 sr_padding;
+ struct sptlrpc_flavor sr_flvr;
};
+/**
+ * A set of rules in memory.
+ *
+ * Rules are generated and stored on MGS, and propagated to MDT, OST,
+ * and client when needed.
+ */
+struct sptlrpc_rule_set {
+ int srs_nslot;
+ int srs_nrule;
+ struct sptlrpc_rule *srs_rules;
+};
+
+int sptlrpc_parse_flavor(const char *str, struct sptlrpc_flavor *flvr);
+int sptlrpc_flavor_has_bulk(struct sptlrpc_flavor *flvr);
+
+static inline void sptlrpc_rule_set_init(struct sptlrpc_rule_set *set)
+{
+ memset(set, 0, sizeof(*set));
+}
+
+void sptlrpc_rule_set_free(struct sptlrpc_rule_set *set);
+int sptlrpc_rule_set_expand(struct sptlrpc_rule_set *set);
+int sptlrpc_rule_set_merge(struct sptlrpc_rule_set *set,
+ struct sptlrpc_rule *rule);
+int sptlrpc_rule_set_choose(struct sptlrpc_rule_set *rset,
+ enum lustre_sec_part from,
+ enum lustre_sec_part to,
+ lnet_nid_t nid,
+ struct sptlrpc_flavor *sf);
+void sptlrpc_rule_set_dump(struct sptlrpc_rule_set *set);
+
+int sptlrpc_process_config(struct lustre_cfg *lcfg);
+void sptlrpc_conf_log_start(const char *logname);
+void sptlrpc_conf_log_stop(const char *logname);
+void sptlrpc_conf_log_update_begin(const char *logname);
+void sptlrpc_conf_log_update_end(const char *logname);
+void sptlrpc_conf_client_adapt(struct obd_device *obd);
+int sptlrpc_conf_target_get_rules(struct obd_device *obd,
+ struct sptlrpc_rule_set *rset,
+ int initial);
+void sptlrpc_target_choose_flavor(struct sptlrpc_rule_set *rset,
+ enum lustre_sec_part from,
+ lnet_nid_t nid,
+ struct sptlrpc_flavor *flavor);
+
/* The maximum length of security payload. 1024 is enough for Kerberos 5,
* and should be enough for other future mechanisms but not sure.
* Only used by pre-allocated request/reply pool.
};
struct ptlrpc_ctx_ops {
+ /**
+ * To determine whether it's suitable to use the \a ctx for \a vcred.
+ */
int (*match) (struct ptlrpc_cli_ctx *ctx,
struct vfs_cred *vcred);
+
+ /**
+ * To bring the \a ctx uptodate.
+ */
int (*refresh) (struct ptlrpc_cli_ctx *ctx);
+
+ /**
+ * Validate the \a ctx.
+ */
+ int (*validate) (struct ptlrpc_cli_ctx *ctx);
+
+ /**
+ * Force the \a ctx to die.
+ */
+ void (*die) (struct ptlrpc_cli_ctx *ctx,
+ int grace);
int (*display) (struct ptlrpc_cli_ctx *ctx,
char *buf, int bufsize);
- /*
- * rpc data transform
+
+ /**
+ * Sign the request message using \a ctx.
+ *
+ * \pre req->rq_reqmsg point to request message.
+ * \pre req->rq_reqlen is the request message length.
+ * \post req->rq_reqbuf point to request message with signature.
+ * \post req->rq_reqdata_len is set to the final request message size.
+ *
+ * \see null_ctx_sign(), plain_ctx_sign(), gss_cli_ctx_sign().
*/
int (*sign) (struct ptlrpc_cli_ctx *ctx,
struct ptlrpc_request *req);
+
+ /**
+ * Verify the reply message using \a ctx.
+ *
+ * \pre req->rq_repdata point to reply message with signature.
+ * \pre req->rq_repdata_len is the total reply message length.
+ * \post req->rq_repmsg point to reply message without signature.
+ * \post req->rq_replen is the reply message length.
+ *
+ * \see null_ctx_verify(), plain_ctx_verify(), gss_cli_ctx_verify().
+ */
int (*verify) (struct ptlrpc_cli_ctx *ctx,
struct ptlrpc_request *req);
+
+ /**
+ * Encrypt the request message using \a ctx.
+ *
+ * \pre req->rq_reqmsg point to request message in clear text.
+ * \pre req->rq_reqlen is the request message length.
+ * \post req->rq_reqbuf point to request message.
+ * \post req->rq_reqdata_len is set to the final request message size.
+ *
+ * \see gss_cli_ctx_seal().
+ */
int (*seal) (struct ptlrpc_cli_ctx *ctx,
struct ptlrpc_request *req);
+
+ /**
+ * Decrypt the reply message using \a ctx.
+ *
+ * \pre req->rq_repdata point to encrypted reply message.
+ * \pre req->rq_repdata_len is the total cipher text length.
+ * \post req->rq_repmsg point to reply message in clear text.
+ * \post req->rq_replen is the reply message length in clear text.
+ *
+ * \see gss_cli_ctx_unseal().
+ */
int (*unseal) (struct ptlrpc_cli_ctx *ctx,
struct ptlrpc_request *req);
- /*
- * bulk transform
+
+ /**
+ * Wrap bulk request data. This is called before wrapping RPC
+ * request message.
+ *
+ * \pre bulk buffer is descripted by desc->bd_iov and
+ * desc->bd_iov_count. note for read it's just buffer, no data
+ * need to be sent; for write it contains data in clear text.
+ * \post when necessary, ptlrpc_bulk_sec_desc was properly prepared
+ * (usually inside of RPC request message).
+ * - encryption: cipher text bulk buffer is descripted by
+ * desc->bd_enc_iov and desc->bd_iov_count (currently assume iov
+ * count remains the same).
+ * - otherwise: bulk buffer is still desc->bd_iov and
+ * desc->bd_iov_count.
+ *
+ * \return 0: success.
+ * \return -ev: error code.
+ *
+ * \see plain_cli_wrap_bulk(), gss_cli_ctx_wrap_bulk().
*/
int (*wrap_bulk) (struct ptlrpc_cli_ctx *ctx,
struct ptlrpc_request *req,
struct ptlrpc_bulk_desc *desc);
+
+ /**
+ * Unwrap bulk reply data. This is called after wrapping RPC
+ * reply message.
+ *
+ * \pre bulk buffer is descripted by desc->bd_iov/desc->bd_enc_iov and
+ * desc->bd_iov_count, according to wrap_bulk().
+ * \post final bulk data in clear text is placed in buffer described
+ * by desc->bd_iov and desc->bd_iov_count.
+ * \return +ve nob of actual bulk data in clear text.
+ * \return -ve error code.
+ *
+ * \see plain_cli_unwrap_bulk(), gss_cli_ctx_unwrap_bulk().
+ */
int (*unwrap_bulk) (struct ptlrpc_cli_ctx *ctx,
struct ptlrpc_request *req,
struct ptlrpc_bulk_desc *desc);
};
-#define PTLRPC_CTX_UPTODATE_BIT (0) /* uptodate */
-#define PTLRPC_CTX_DEAD_BIT (1) /* mark expired gracefully */
-#define PTLRPC_CTX_ERROR_BIT (2) /* fatal error (refresh, etc.) */
-#define PTLRPC_CTX_HASHED_BIT (8) /* in hash table */
+#define PTLRPC_CTX_NEW_BIT (0) /* newly created */
+#define PTLRPC_CTX_UPTODATE_BIT (1) /* uptodate */
+#define PTLRPC_CTX_DEAD_BIT (2) /* mark expired gracefully */
+#define PTLRPC_CTX_ERROR_BIT (3) /* fatal error (refresh, etc.) */
+#define PTLRPC_CTX_CACHED_BIT (8) /* in ctx cache (hash etc.) */
#define PTLRPC_CTX_ETERNAL_BIT (9) /* always valid */
+#define PTLRPC_CTX_NEW (1 << PTLRPC_CTX_NEW_BIT)
#define PTLRPC_CTX_UPTODATE (1 << PTLRPC_CTX_UPTODATE_BIT)
#define PTLRPC_CTX_DEAD (1 << PTLRPC_CTX_DEAD_BIT)
#define PTLRPC_CTX_ERROR (1 << PTLRPC_CTX_ERROR_BIT)
-#define PTLRPC_CTX_HASHED (1 << PTLRPC_CTX_HASHED_BIT)
+#define PTLRPC_CTX_CACHED (1 << PTLRPC_CTX_CACHED_BIT)
#define PTLRPC_CTX_ETERNAL (1 << PTLRPC_CTX_ETERNAL_BIT)
-#define PTLRPC_CTX_STATUS_MASK (PTLRPC_CTX_UPTODATE | \
+#define PTLRPC_CTX_STATUS_MASK (PTLRPC_CTX_NEW_BIT | \
+ PTLRPC_CTX_UPTODATE | \
PTLRPC_CTX_DEAD | \
PTLRPC_CTX_ERROR)
struct ptlrpc_cli_ctx {
- struct hlist_node cc_hash; /* linked into hash table */
- atomic_t cc_refcount;
+ cfs_hlist_node_t cc_cache; /* linked into ctx cache */
+ cfs_atomic_t cc_refcount;
struct ptlrpc_sec *cc_sec;
struct ptlrpc_ctx_ops *cc_ops;
cfs_time_t cc_expire; /* in seconds */
+ unsigned int cc_early_expire:1;
unsigned long cc_flags;
struct vfs_cred cc_vcred;
- spinlock_t cc_lock;
- struct list_head cc_req_list; /* waiting reqs linked here */
+ cfs_spinlock_t cc_lock;
+ cfs_list_t cc_req_list; /* waiting reqs linked here */
+ cfs_list_t cc_gc_chain; /* linked to gc chain */
};
+/**
+ * client side policy operation vector.
+ */
struct ptlrpc_sec_cops {
- /*
- * ptlrpc_sec constructor/destructor
+ /**
+ * Given an \a imp, create and initialize a ptlrpc_sec structure.
+ * \param ctx service context:
+ * - regular import: \a ctx should be NULL;
+ * - reverse import: \a ctx is obtained from incoming request.
+ * \param flavor specify what flavor to use.
+ *
+ * When necessary, policy module is responsible for taking reference
+ * on the import.
+ *
+ * \see null_create_sec(), plain_create_sec(), gss_sec_create_kr().
*/
struct ptlrpc_sec * (*create_sec) (struct obd_import *imp,
struct ptlrpc_svc_ctx *ctx,
- __u32 flavor,
- unsigned long flags);
+ struct sptlrpc_flavor *flavor);
+
+ /**
+ * Destructor of ptlrpc_sec. When called, refcount has been dropped
+ * to 0 and all contexts has been destroyed.
+ *
+ * \see null_destroy_sec(), plain_destroy_sec(), gss_sec_destroy_kr().
+ */
void (*destroy_sec) (struct ptlrpc_sec *sec);
- /*
- * search ctx for a certain user, if this function is missing,
- * a generic function will be invoked by caller. implement this
- * for any special need.
+
+ /**
+ * Notify that this ptlrpc_sec is going to die. Optionally, policy
+ * module is supposed to set sec->ps_dying and whatever necessary
+ * actions.
+ *
+ * \see plain_kill_sec(), gss_sec_kill().
+ */
+ void (*kill_sec) (struct ptlrpc_sec *sec);
+
+ /**
+ * Given \a vcred, lookup and/or create its context. The policy module
+ * is supposed to maintain its own context cache.
+ * XXX currently \a create and \a remove_dead is always 1, perhaps
+ * should be removed completely.
+ *
+ * \see null_lookup_ctx(), plain_lookup_ctx(), gss_sec_lookup_ctx_kr().
*/
struct ptlrpc_cli_ctx * (*lookup_ctx) (struct ptlrpc_sec *sec,
- struct vfs_cred *vcred);
- /*
- * ptlrpc_cli_ctx constructor/destructor
+ struct vfs_cred *vcred,
+ int create,
+ int remove_dead);
+
+ /**
+ * Called then the reference of \a ctx dropped to 0. The policy module
+ * is supposed to destroy this context or whatever else according to
+ * its cache maintainance mechamism.
+ *
+ * \param sync if zero, we shouldn't wait for the context being
+ * destroyed completely.
+ *
+ * \see plain_release_ctx(), gss_sec_release_ctx_kr().
+ */
+ void (*release_ctx) (struct ptlrpc_sec *sec,
+ struct ptlrpc_cli_ctx *ctx,
+ int sync);
+
+ /**
+ * Flush the context cache.
+ *
+ * \param uid context of which user, -1 means all contexts.
+ * \param grace if zero, the PTLRPC_CTX_UPTODATE_BIT of affected
+ * contexts should be cleared immediately.
+ * \param force if zero, only idle contexts will be flushed.
+ *
+ * \see plain_flush_ctx_cache(), gss_sec_flush_ctx_cache_kr().
+ */
+ int (*flush_ctx_cache)
+ (struct ptlrpc_sec *sec,
+ uid_t uid,
+ int grace,
+ int force);
+
+ /**
+ * Called periodically by garbage collector to remove dead contexts
+ * from cache.
+ *
+ * \see gss_sec_gc_ctx_kr().
+ */
+ void (*gc_ctx) (struct ptlrpc_sec *sec);
+
+ /**
+ * Given an context \a ctx, install a corresponding reverse service
+ * context on client side.
+ * XXX currently it's only used by GSS module, maybe we should remove
+ * this from general API.
*/
- struct ptlrpc_cli_ctx * (*create_ctx) (struct ptlrpc_sec *sec,
- struct vfs_cred *vcred);
- void (*destroy_ctx) (struct ptlrpc_sec *sec,
- struct ptlrpc_cli_ctx *ctx);
- /* reverse service */
int (*install_rctx)(struct obd_import *imp,
struct ptlrpc_sec *sec,
struct ptlrpc_cli_ctx *ctx);
- /*
- * request/reply buffer manipulation
+
+ /**
+ * To allocate request buffer for \a req.
+ *
+ * \pre req->rq_reqmsg == NULL.
+ * \pre req->rq_reqbuf == NULL, otherwise it must be pre-allocated,
+ * we are not supposed to free it.
+ * \post if success, req->rq_reqmsg point to a buffer with size
+ * at least \a lustre_msg_size.
+ *
+ * \see null_alloc_reqbuf(), plain_alloc_reqbuf(), gss_alloc_reqbuf().
*/
int (*alloc_reqbuf)(struct ptlrpc_sec *sec,
struct ptlrpc_request *req,
int lustre_msg_size);
+
+ /**
+ * To free request buffer for \a req.
+ *
+ * \pre req->rq_reqbuf != NULL.
+ *
+ * \see null_free_reqbuf(), plain_free_reqbuf(), gss_free_reqbuf().
+ */
void (*free_reqbuf) (struct ptlrpc_sec *sec,
struct ptlrpc_request *req);
+
+ /**
+ * To allocate reply buffer for \a req.
+ *
+ * \pre req->rq_repbuf == NULL.
+ * \post if success, req->rq_repbuf point to a buffer with size
+ * req->rq_repbuf_len, the size should be large enough to receive
+ * reply which be transformed from \a lustre_msg_size of clear text.
+ *
+ * \see null_alloc_repbuf(), plain_alloc_repbuf(), gss_alloc_repbuf().
+ */
int (*alloc_repbuf)(struct ptlrpc_sec *sec,
struct ptlrpc_request *req,
int lustre_msg_size);
+
+ /**
+ * To free reply buffer for \a req.
+ *
+ * \pre req->rq_repbuf != NULL.
+ * \post req->rq_repbuf == NULL.
+ * \post req->rq_repbuf_len == 0.
+ *
+ * \see null_free_repbuf(), plain_free_repbuf(), gss_free_repbuf().
+ */
void (*free_repbuf) (struct ptlrpc_sec *sec,
struct ptlrpc_request *req);
+
+ /**
+ * To expand the request buffer of \a req, thus the \a segment in
+ * the request message pointed by req->rq_reqmsg can accommodate
+ * at least \a newsize of data.
+ *
+ * \pre req->rq_reqmsg->lm_buflens[segment] < newsize.
+ *
+ * \see null_enlarge_reqbuf(), plain_enlarge_reqbuf(),
+ * gss_enlarge_reqbuf().
+ */
int (*enlarge_reqbuf)
(struct ptlrpc_sec *sec,
struct ptlrpc_request *req,
int segment, int newsize);
+ /*
+ * misc
+ */
+ int (*display) (struct ptlrpc_sec *sec,
+ struct seq_file *seq);
};
+/**
+ * server side policy operation vector.
+ */
struct ptlrpc_sec_sops {
+ /**
+ * verify an incoming request.
+ *
+ * \pre request message is pointed by req->rq_reqbuf, size is
+ * req->rq_reqdata_len; and the message has been unpacked to
+ * host byte order.
+ *
+ * \retval SECSVC_OK success, req->rq_reqmsg point to request message
+ * in clear text, size is req->rq_reqlen; req->rq_svc_ctx is set;
+ * req->rq_sp_from is decoded from request.
+ * \retval SECSVC_COMPLETE success, the request has been fully
+ * processed, and reply message has been prepared; req->rq_sp_from is
+ * decoded from request.
+ * \retval SECSVC_DROP failed, this request should be dropped.
+ *
+ * \see null_accept(), plain_accept(), gss_svc_accept_kr().
+ */
int (*accept) (struct ptlrpc_request *req);
+
+ /**
+ * Perform security transformation upon reply message.
+ *
+ * \pre reply message is pointed by req->rq_reply_state->rs_msg, size
+ * is req->rq_replen.
+ * \post req->rs_repdata_len is the final message size.
+ * \post req->rq_reply_off is set.
+ *
+ * \see null_authorize(), plain_authorize(), gss_svc_authorize().
+ */
int (*authorize) (struct ptlrpc_request *req);
+
+ /**
+ * Invalidate server context \a ctx.
+ *
+ * \see gss_svc_invalidate_ctx().
+ */
void (*invalidate_ctx)
(struct ptlrpc_svc_ctx *ctx);
- /* buffer manipulation */
+
+ /**
+ * Allocate a ptlrpc_reply_state.
+ *
+ * \param msgsize size of the reply message in clear text.
+ * \pre if req->rq_reply_state != NULL, then it's pre-allocated, we
+ * should simply use it; otherwise we'll responsible for allocating
+ * a new one.
+ * \post req->rq_reply_state != NULL;
+ * \post req->rq_reply_state->rs_msg != NULL;
+ *
+ * \see null_alloc_rs(), plain_alloc_rs(), gss_svc_alloc_rs().
+ */
int (*alloc_rs) (struct ptlrpc_request *req,
int msgsize);
+
+ /**
+ * Free a ptlrpc_reply_state.
+ */
void (*free_rs) (struct ptlrpc_reply_state *rs);
+
+ /**
+ * Release the server context \a ctx.
+ *
+ * \see gss_svc_free_ctx().
+ */
void (*free_ctx) (struct ptlrpc_svc_ctx *ctx);
- /* reverse credential */
+
+ /**
+ * Install a reverse context based on the server context \a ctx.
+ *
+ * \see gss_svc_install_rctx_kr().
+ */
int (*install_rctx)(struct obd_import *imp,
struct ptlrpc_svc_ctx *ctx);
- /* bulk transform */
+
+ /**
+ * Prepare buffer for incoming bulk write.
+ *
+ * \pre desc->bd_iov and desc->bd_iov_count describes the buffer
+ * intended to receive the write.
+ *
+ * \see gss_svc_prep_bulk().
+ */
+ int (*prep_bulk) (struct ptlrpc_request *req,
+ struct ptlrpc_bulk_desc *desc);
+
+ /**
+ * Unwrap the bulk write data.
+ *
+ * \see plain_svc_unwrap_bulk(), gss_svc_unwrap_bulk().
+ */
int (*unwrap_bulk) (struct ptlrpc_request *req,
struct ptlrpc_bulk_desc *desc);
+
+ /**
+ * Wrap the bulk read data.
+ *
+ * \see plain_svc_wrap_bulk(), gss_svc_wrap_bulk().
+ */
int (*wrap_bulk) (struct ptlrpc_request *req,
struct ptlrpc_bulk_desc *desc);
};
struct ptlrpc_sec_policy {
- struct module *sp_owner;
+ cfs_module_t *sp_owner;
char *sp_name;
- __u32 sp_policy; /* policy number */
+ __u16 sp_policy; /* policy number */
struct ptlrpc_sec_cops *sp_cops; /* client ops */
struct ptlrpc_sec_sops *sp_sops; /* server ops */
};
#define PTLRPC_SEC_FL_REVERSE 0x0001 /* reverse sec */
#define PTLRPC_SEC_FL_ROOTONLY 0x0002 /* treat everyone as root */
-#define PTLRPC_SEC_FL_BULK 0x0004 /* intensive bulk i/o expected */
-
+#define PTLRPC_SEC_FL_UDESC 0x0004 /* ship udesc */
+#define PTLRPC_SEC_FL_BULK 0x0008 /* intensive bulk i/o expected */
+#define PTLRPC_SEC_FL_PAG 0x0010 /* PAG mode */
+
+/**
+ * The ptlrpc_sec represents the client side ptlrpc security facilities,
+ * each obd_import (both regular and reverse import) must associate with
+ * a ptlrpc_sec.
+ *
+ * \see sptlrpc_import_sec_adapt().
+ */
struct ptlrpc_sec {
struct ptlrpc_sec_policy *ps_policy;
- atomic_t ps_refcount;
- __u32 ps_flavor; /* rpc flavor */
- unsigned long ps_flags; /* PTLRPC_SEC_FL_XX */
- struct obd_import *ps_import; /* owning import */
- spinlock_t ps_lock; /* protect ccache */
- int ps_ccache_size; /* must be 2^n */
- struct hlist_head *ps_ccache; /* ctx cache hash */
- atomic_t ps_busy; /* busy count */
+ cfs_atomic_t ps_refcount;
+ /** statistic only */
+ cfs_atomic_t ps_nctx;
+ /** unique identifier */
+ int ps_id;
+ struct sptlrpc_flavor ps_flvr;
+ enum lustre_sec_part ps_part;
+ /** after set, no more new context will be created */
+ unsigned int ps_dying:1;
+ /** owning import */
+ struct obd_import *ps_import;
+ cfs_spinlock_t ps_lock;
+
+ /*
+ * garbage collection
+ */
+ cfs_list_t ps_gc_list;
cfs_time_t ps_gc_interval; /* in seconds */
cfs_time_t ps_gc_next; /* in seconds */
};
+static inline int sec_is_reverse(struct ptlrpc_sec *sec)
+{
+ return (sec->ps_flvr.sf_flags & PTLRPC_SEC_FL_REVERSE);
+}
+
+static inline int sec_is_rootonly(struct ptlrpc_sec *sec)
+{
+ return (sec->ps_flvr.sf_flags & PTLRPC_SEC_FL_ROOTONLY);
+}
+
+
struct ptlrpc_svc_ctx {
- atomic_t sc_refcount;
+ cfs_atomic_t sc_refcount;
struct ptlrpc_sec_policy *sc_policy;
};
/*
* bulk flavors
*/
-enum bulk_checksum_alg {
- BULK_CSUM_ALG_NULL = 0,
- BULK_CSUM_ALG_CRC32,
- BULK_CSUM_ALG_MD5,
- BULK_CSUM_ALG_SHA1,
- BULK_CSUM_ALG_SHA256,
- BULK_CSUM_ALG_SHA384,
- BULK_CSUM_ALG_SHA512,
- BULK_CSUM_ALG_MAX
+enum sptlrpc_bulk_hash_alg {
+ BULK_HASH_ALG_NULL = 0,
+ BULK_HASH_ALG_ADLER32,
+ BULK_HASH_ALG_CRC32,
+ BULK_HASH_ALG_MD5,
+ BULK_HASH_ALG_SHA1,
+ BULK_HASH_ALG_SHA256,
+ BULK_HASH_ALG_SHA384,
+ BULK_HASH_ALG_SHA512,
+ BULK_HASH_ALG_MAX
};
-enum bulk_encrypt_alg {
- BULK_PRIV_ALG_NULL = 0,
- BULK_PRIV_ALG_ARC4,
- BULK_PRIV_ALG_MAX
+struct sptlrpc_hash_type {
+ char *sht_name;
+ char *sht_tfm_name;
+ unsigned int sht_size;
+};
+
+const struct sptlrpc_hash_type *sptlrpc_get_hash_type(__u8 hash_alg);
+const char * sptlrpc_get_hash_name(__u8 hash_alg);
+__u8 sptlrpc_get_hash_alg(const char *algname);
+
+enum {
+ BSD_FL_ERR = 1,
};
struct ptlrpc_bulk_sec_desc {
- __u32 bsd_version;
- __u32 bsd_pad;
- __u32 bsd_csum_alg; /* checksum algorithm */
- __u32 bsd_priv_alg; /* encrypt algorithm */
- __u8 bsd_iv[16]; /* encrypt iv */
- __u8 bsd_csum[0];
+ __u8 bsd_version; /* 0 */
+ __u8 bsd_type; /* SPTLRPC_BULK_XXX */
+ __u8 bsd_svc; /* SPTLRPC_BULK_SVC_XXXX */
+ __u8 bsd_flags; /* flags */
+ __u32 bsd_nob; /* nob of bulk data */
+ __u8 bsd_data[0]; /* policy-specific token */
};
-const char * sptlrpc_bulk_csum_alg2name(__u32 csum_alg);
-const char * sptlrpc_bulk_priv_alg2name(__u32 priv_alg);
-__u32 sptlrpc_bulk_priv_alg2flags(__u32 priv_alg);
/*
* lprocfs
int segment, int newsize);
/*
- * security type
+ * security policies
*/
int sptlrpc_register_policy(struct ptlrpc_sec_policy *policy);
int sptlrpc_unregister_policy(struct ptlrpc_sec_policy *policy);
-__u32 sptlrpc_name2flavor(const char *name);
-char *sptlrpc_flavor2name(__u32 flavor);
+__u32 sptlrpc_name2flavor_base(const char *name);
+const char *sptlrpc_flavor2name_base(__u32 flvr);
+char *sptlrpc_flavor2name_bulk(struct sptlrpc_flavor *sf,
+ char *buf, int bufsize);
+char *sptlrpc_flavor2name(struct sptlrpc_flavor *sf, char *buf, int bufsize);
+char *sptlrpc_secflags2str(__u32 flags, char *buf, int bufsize);
static inline
struct ptlrpc_sec_policy *sptlrpc_policy_get(struct ptlrpc_sec_policy *policy)
{
- __module_get(policy->sp_owner);
+ __cfs_module_get(policy->sp_owner);
return policy;
}
static inline
void sptlrpc_policy_put(struct ptlrpc_sec_policy *policy)
{
- module_put(policy->sp_owner);
+ cfs_module_put(policy->sp_owner);
}
/*
* client credential
*/
-struct ptlrpc_cli_ctx *sptlrpc_ctx_get(struct ptlrpc_cli_ctx *ctx);
-void sptlrpc_ctx_put(struct ptlrpc_cli_ctx *ctx, int sync);
-void sptlrpc_ctx_expire(struct ptlrpc_cli_ctx *ctx);
-void sptlrpc_ctx_replace(struct ptlrpc_sec *sec, struct ptlrpc_cli_ctx *new);
-void sptlrpc_ctx_wakeup(struct ptlrpc_cli_ctx *ctx);
-int sptlrpc_ctx_display(struct ptlrpc_cli_ctx *ctx, char *buf, int bufsize);
+static inline
+unsigned long cli_ctx_status(struct ptlrpc_cli_ctx *ctx)
+{
+ return (ctx->cc_flags & PTLRPC_CTX_STATUS_MASK);
+}
+
+static inline
+int cli_ctx_is_ready(struct ptlrpc_cli_ctx *ctx)
+{
+ return (cli_ctx_status(ctx) == PTLRPC_CTX_UPTODATE);
+}
+
+static inline
+int cli_ctx_is_refreshed(struct ptlrpc_cli_ctx *ctx)
+{
+ return (cli_ctx_status(ctx) != 0);
+}
+
+static inline
+int cli_ctx_is_uptodate(struct ptlrpc_cli_ctx *ctx)
+{
+ return ((ctx->cc_flags & PTLRPC_CTX_UPTODATE) != 0);
+}
+
+static inline
+int cli_ctx_is_error(struct ptlrpc_cli_ctx *ctx)
+{
+ return ((ctx->cc_flags & PTLRPC_CTX_ERROR) != 0);
+}
+
+static inline
+int cli_ctx_is_dead(struct ptlrpc_cli_ctx *ctx)
+{
+ return ((ctx->cc_flags & (PTLRPC_CTX_DEAD | PTLRPC_CTX_ERROR)) != 0);
+}
+
+static inline
+int cli_ctx_is_eternal(struct ptlrpc_cli_ctx *ctx)
+{
+ return ((ctx->cc_flags & PTLRPC_CTX_ETERNAL) != 0);
+}
/*
- * client wrap/buffers
+ * sec get/put
+ */
+struct ptlrpc_sec *sptlrpc_sec_get(struct ptlrpc_sec *sec);
+void sptlrpc_sec_put(struct ptlrpc_sec *sec);
+
+/*
+ * internal apis which only used by policy impelentation
+ */
+int sptlrpc_get_next_secid(void);
+void sptlrpc_sec_destroy(struct ptlrpc_sec *sec);
+
+/*
+ * exported client context api
+ */
+struct ptlrpc_cli_ctx *sptlrpc_cli_ctx_get(struct ptlrpc_cli_ctx *ctx);
+void sptlrpc_cli_ctx_put(struct ptlrpc_cli_ctx *ctx, int sync);
+void sptlrpc_cli_ctx_expire(struct ptlrpc_cli_ctx *ctx);
+void sptlrpc_cli_ctx_wakeup(struct ptlrpc_cli_ctx *ctx);
+int sptlrpc_cli_ctx_display(struct ptlrpc_cli_ctx *ctx, char *buf, int bufsize);
+
+/*
+ * exported client context wrap/buffers
*/
int sptlrpc_cli_wrap_request(struct ptlrpc_request *req);
int sptlrpc_cli_unwrap_reply(struct ptlrpc_request *req);
void sptlrpc_cli_free_repbuf(struct ptlrpc_request *req);
int sptlrpc_cli_enlarge_reqbuf(struct ptlrpc_request *req,
int segment, int newsize);
+int sptlrpc_cli_unwrap_early_reply(struct ptlrpc_request *req,
+ struct ptlrpc_request **req_ret);
+void sptlrpc_cli_finish_early_reply(struct ptlrpc_request *early_req);
+
void sptlrpc_request_out_callback(struct ptlrpc_request *req);
/*
- * higher interface of import & request
+ * exported higher interface of import & request
*/
-int sptlrpc_import_get_sec(struct obd_import *imp, struct ptlrpc_svc_ctx *svc_ctx,
- __u32 flavor, unsigned long flags);
-void sptlrpc_import_put_sec(struct obd_import *imp);
+int sptlrpc_import_sec_adapt(struct obd_import *imp,
+ struct ptlrpc_svc_ctx *ctx,
+ struct sptlrpc_flavor *flvr);
+struct ptlrpc_sec *sptlrpc_import_sec_ref(struct obd_import *imp);
+void sptlrpc_import_sec_put(struct obd_import *imp);
+
int sptlrpc_import_check_ctx(struct obd_import *imp);
void sptlrpc_import_flush_root_ctx(struct obd_import *imp);
void sptlrpc_import_flush_my_ctx(struct obd_import *imp);
void sptlrpc_import_flush_all_ctx(struct obd_import *imp);
int sptlrpc_req_get_ctx(struct ptlrpc_request *req);
-void sptlrpc_req_put_ctx(struct ptlrpc_request *req);
+void sptlrpc_req_put_ctx(struct ptlrpc_request *req, int sync);
int sptlrpc_req_refresh_ctx(struct ptlrpc_request *req, long timeout);
int sptlrpc_req_replace_dead_ctx(struct ptlrpc_request *req);
void sptlrpc_req_set_flavor(struct ptlrpc_request *req, int opcode);
-int sptlrpc_parse_flavor(enum lustre_part from, enum lustre_part to,
- char *str, struct sec_flavor_config *conf);
+int sptlrpc_parse_rule(char *param, struct sptlrpc_rule *rule);
+
+/* gc */
+void sptlrpc_gc_add_sec(struct ptlrpc_sec *sec);
+void sptlrpc_gc_del_sec(struct ptlrpc_sec *sec);
+void sptlrpc_gc_add_ctx(struct ptlrpc_cli_ctx *ctx);
+
/* misc */
const char * sec2target_str(struct ptlrpc_sec *sec);
-int sptlrpc_lprocfs_rd(char *page, char **start, off_t off, int count,
- int *eof, void *data);
+int sptlrpc_lprocfs_cliobd_attach(struct obd_device *dev);
/*
* server side
void sptlrpc_svc_ctx_decref(struct ptlrpc_request *req);
void sptlrpc_svc_ctx_invalidate(struct ptlrpc_request *req);
+int sptlrpc_target_export_check(struct obd_export *exp,
+ struct ptlrpc_request *req);
+void sptlrpc_target_update_exp_flavor(struct obd_device *obd,
+ struct sptlrpc_rule_set *rset);
+
/*
* reverse context
*/
int sptlrpc_cli_wrap_bulk(struct ptlrpc_request *req,
struct ptlrpc_bulk_desc *desc);
int sptlrpc_cli_unwrap_bulk_read(struct ptlrpc_request *req,
- int nob, obd_count pg_count,
- struct brw_page **pga);
+ struct ptlrpc_bulk_desc *desc,
+ int nob);
int sptlrpc_cli_unwrap_bulk_write(struct ptlrpc_request *req,
struct ptlrpc_bulk_desc *desc);
+int sptlrpc_svc_prep_bulk(struct ptlrpc_request *req,
+ struct ptlrpc_bulk_desc *desc);
int sptlrpc_svc_wrap_bulk(struct ptlrpc_request *req,
struct ptlrpc_bulk_desc *desc);
int sptlrpc_svc_unwrap_bulk(struct ptlrpc_request *req,
struct ptlrpc_bulk_desc *desc);
+/* bulk helpers (internal use only by policies) */
+int sptlrpc_get_bulk_checksum(struct ptlrpc_bulk_desc *desc, __u8 alg,
+ void *buf, int buflen);
+
+int bulk_sec_desc_unpack(struct lustre_msg *msg, int offset, int swabbed);
+
/* user descriptor helpers */
static inline int sptlrpc_user_desc_size(int ngroups)
{
int sptlrpc_current_user_desc_size(void);
int sptlrpc_pack_user_desc(struct lustre_msg *msg, int offset);
-int sptlrpc_unpack_user_desc(struct lustre_msg *msg, int offset);
+int sptlrpc_unpack_user_desc(struct lustre_msg *req, int offset, int swabbed);
-/* bulk helpers (internal use only by policies) */
-int bulk_sec_desc_size(__u32 csum_alg, int request, int read);
-int bulk_sec_desc_unpack(struct lustre_msg *msg, int offset);
-
-int bulk_csum_cli_request(struct ptlrpc_bulk_desc *desc, int read,
- __u32 alg, struct lustre_msg *rmsg, int roff);
-int bulk_csum_cli_reply(struct ptlrpc_bulk_desc *desc, int read,
- struct lustre_msg *rmsg, int roff,
- struct lustre_msg *vmsg, int voff);
-int bulk_csum_svc(struct ptlrpc_bulk_desc *desc, int read,
- struct lustre_msg *vmsg, int voff,
- struct lustre_msg *rmsg, int roff);
+#define CFS_CAP_CHOWN_MASK (1 << CFS_CAP_CHOWN)
+#define CFS_CAP_SYS_RESOURCE_MASK (1 << CFS_CAP_SYS_RESOURCE)
+
+enum {
+ LUSTRE_SEC_NONE = 0,
+ LUSTRE_SEC_REMOTE = 1,
+ LUSTRE_SEC_SPECIFY = 2,
+ LUSTRE_SEC_ALL = 3
+};
+
+/** @} sptlrpc */
#endif /* _LUSTRE_SEC_H_ */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff