2 * Modifications for Lustre
4 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
6 * Author: Eric Mei <ericm@clusterfs.com>
10 Copyright (c) 2004 The Regents of the University of Michigan.
13 Redistribution and use in source and binary forms, with or without
14 modification, are permitted provided that the following conditions
17 1. Redistributions of source code must retain the above copyright
18 notice, this list of conditions and the following disclaimer.
19 2. Redistributions in binary form must reproduce the above copyright
20 notice, this list of conditions and the following disclaimer in the
21 documentation and/or other materials provided with the distribution.
22 3. Neither the name of the University nor the names of its
23 contributors may be used to endorse or promote products derived
24 from this software without specific prior written permission.
26 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
27 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
28 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
29 DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
33 BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44 #include <gssapi/gssapi.h>
46 #define LGSS_SVC_MGS_STR "lustre_mgs"
47 #define LGSS_SVC_MDS_STR "lustre_mds"
48 #define LGSS_SVC_OSS_STR "lustre_oss"
49 #define LGSS_USR_ROOT_STR "lustre_root"
58 extern const char *lgss_svc_str[LGSS_SVC_MAX];
60 /****************************************
61 * inter-process locking *
62 ****************************************/
69 int lgss_mutex_lock(lgss_mutex_id_t mid);
70 int lgss_mutex_unlock(lgss_mutex_id_t mid);
72 /****************************************
74 ****************************************/
78 * LL_ERR: critical error messages
79 * LL_WARN: warning (default)
80 * LL_INFO: important infomation
82 * LL_TRACE: excessive tracing messages
93 extern loglevel_t g_log_level;
95 void lgss_set_loglevel(loglevel_t level);
97 void __logmsg(loglevel_t level, const char *func, const char *format, ...)
98 __attribute__((format(printf, 3, 4)));
100 void __logmsg_gss(loglevel_t level, const char *func, const gss_OID mech,
101 uint32_t major, uint32_t minor, const char *format, ...)
102 __attribute__((format(printf, 6, 7)));
104 #define logmsg(loglevel, format, args...) \
106 if (loglevel <= g_log_level) \
107 __logmsg(loglevel, __FUNCTION__, format, ##args); \
110 #define logmsg_gss(loglevel, mech, major, minor, format, args...) \
112 if (loglevel <= g_log_level) \
113 __logmsg_gss(loglevel, __FUNCTION__, mech, \
114 major, minor, format, ##args); \
117 #define lassert(exp) \
120 logmsg(LL_ERR, "ASSERTION FAILED: %s", #exp); \
126 * for compatible reason, we're using files (context_xxx.c) from nfs-utils
128 #define printerr(priority, format, args...) \
129 logmsg(priority, format, ##args)
131 #define pgsserr(msg, maj_stat, min_stat, mech) \
132 logmsg_gss(LL_ERR, mech, maj_stat, min_stat, msg)
134 /****************************************
136 ****************************************/
138 extern gss_OID_desc krb5oid;
139 extern gss_OID_desc spkm3oid;
145 /****************************************
146 * client credentials *
147 ****************************************/
151 struct lgss_mech_type {
153 lgss_mech_t lmt_mech_n;
155 int (*lmt_init)(void);
156 void (*lmt_fini)(void);
157 int (*lmt_prepare_cred)(struct lgss_cred *cred);
158 void (*lmt_release_cred)(struct lgss_cred *cred);
159 int (*lmt_using_cred)(struct lgss_cred *cred);
163 LGSS_ROOT_CRED_ROOT = 0x01,
164 LGSS_ROOT_CRED_MDT = 0x02,
165 LGSS_ROOT_CRED_OST = 0x04,
167 LGSS_ROOT_CRED_NR = 3
172 unsigned int lc_root_flags;
173 uint64_t lc_self_nid;
177 struct lgss_mech_type *lc_mech;
181 struct lgss_mech_type *lgss_name2mech(const char *mech_name);
182 int lgss_mech_initialize(struct lgss_mech_type *mech);
183 void lgss_mech_finalize(struct lgss_mech_type *mech);
185 struct lgss_cred * lgss_create_cred(struct lgss_mech_type *mech);
186 void lgss_destroy_cred(struct lgss_cred *cred);
187 int lgss_prepare_cred(struct lgss_cred *cred);
188 void lgss_release_cred(struct lgss_cred *cred);
189 int lgss_using_cred(struct lgss_cred *cred);
191 int lgss_get_service_str(char **string, uint32_t lsvc, uint64_t tgt_nid);
194 extern gss_OID_desc krb5oid;
195 extern gss_OID_desc spkm3oid;
198 int gss_OID_equal(gss_OID_desc *oid1, gss_OID_desc *oid2)
200 return (oid1->length == oid2->length &&
201 memcmp(oid1->elements, oid2->elements, oid1->length) == 0);
205 #define g_OID_equal(o1,o2) gss_OID_equal((o1), (o2))
208 #endif /* LGSS_UTILS_H */