xref: /freebsd/sys/kgssapi/gss_pname_to_uid.c (revision e0c4386e)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
5  * Authors: Doug Rabson <dfr@rabson.org>
6  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/param.h>
31 #include <sys/kernel.h>
32 #include <sys/kobj.h>
33 #include <sys/lock.h>
34 #include <sys/malloc.h>
35 #include <sys/mutex.h>
36 
37 #include <kgssapi/gssapi.h>
38 #include <kgssapi/gssapi_impl.h>
39 
40 #include "kgss_if.h"
41 
42 OM_uint32
43 gss_pname_to_uid(OM_uint32 *minor_status, const gss_name_t pname,
44     const gss_OID mech, uid_t *uidp)
45 {
46 	struct pname_to_uid_res res;
47 	struct pname_to_uid_args args;
48 	enum clnt_stat stat;
49 	CLIENT *cl;
50 
51 	*minor_status = 0;
52 
53 	if (pname == GSS_C_NO_NAME)
54 		return (GSS_S_BAD_NAME);
55 
56 	cl = kgss_gssd_client();
57 	if (cl == NULL)
58 		return (GSS_S_FAILURE);
59 
60 	args.pname = pname->handle;
61 	args.mech = mech;
62 
63 	bzero(&res, sizeof(res));
64 	stat = gssd_pname_to_uid_1(&args, &res, cl);
65 	CLNT_RELEASE(cl);
66 	if (stat != RPC_SUCCESS) {
67 		*minor_status = stat;
68 		return (GSS_S_FAILURE);
69 	}
70 
71 	if (res.major_status != GSS_S_COMPLETE) {
72 		*minor_status = res.minor_status;
73 		return (res.major_status);
74 	}
75 
76 	*uidp = res.uid;
77 	return (GSS_S_COMPLETE);
78 }
79 
80 OM_uint32
81 gss_pname_to_unix_cred(OM_uint32 *minor_status, const gss_name_t pname,
82     const gss_OID mech, uid_t *uidp, gid_t *gidp,
83     int *numgroups, gid_t *groups)
84 
85 {
86 	struct pname_to_uid_res res;
87 	struct pname_to_uid_args args;
88 	enum clnt_stat stat;
89 	int i, n;
90 	CLIENT *cl;
91 
92 	*minor_status = 0;
93 
94 	if (pname == GSS_C_NO_NAME)
95 		return (GSS_S_BAD_NAME);
96 
97 	cl = kgss_gssd_client();
98 	if (cl == NULL)
99 		return (GSS_S_FAILURE);
100 
101 	args.pname = pname->handle;
102 	args.mech = mech;
103 
104 	bzero(&res, sizeof(res));
105 	stat = gssd_pname_to_uid_1(&args, &res, cl);
106 	CLNT_RELEASE(cl);
107 	if (stat != RPC_SUCCESS) {
108 		*minor_status = stat;
109 		return (GSS_S_FAILURE);
110 	}
111 
112 	if (res.major_status != GSS_S_COMPLETE) {
113 		*minor_status = res.minor_status;
114 		return (res.major_status);
115 	}
116 
117 	*uidp = res.uid;
118 	*gidp = res.gid;
119 	n = res.gidlist.gidlist_len;
120 	if (n > *numgroups)
121 		n = *numgroups;
122 	for (i = 0; i < n; i++)
123 		groups[i] = res.gidlist.gidlist_val[i];
124 	*numgroups = n;
125 
126 	xdr_free((xdrproc_t) xdr_pname_to_uid_res, &res);
127 
128 	return (GSS_S_COMPLETE);
129 }
130