xref: /freebsd/sys/kgssapi/gss_pname_to_uid.c (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <sys/param.h>
34 #include <sys/kernel.h>
35 #include <sys/kobj.h>
36 #include <sys/lock.h>
37 #include <sys/malloc.h>
38 #include <sys/mutex.h>
39 
40 #include <kgssapi/gssapi.h>
41 #include <kgssapi/gssapi_impl.h>
42 
43 #include "kgss_if.h"
44 
45 OM_uint32
46 gss_pname_to_uid(OM_uint32 *minor_status, const gss_name_t pname,
47     const gss_OID mech, uid_t *uidp)
48 {
49 	struct pname_to_uid_res res;
50 	struct pname_to_uid_args args;
51 	enum clnt_stat stat;
52 	CLIENT *cl;
53 
54 	*minor_status = 0;
55 
56 	if (pname == GSS_C_NO_NAME)
57 		return (GSS_S_BAD_NAME);
58 
59 	cl = kgss_gssd_client();
60 	if (cl == NULL)
61 		return (GSS_S_FAILURE);
62 
63 	args.pname = pname->handle;
64 	args.mech = mech;
65 
66 	bzero(&res, sizeof(res));
67 	stat = gssd_pname_to_uid_1(&args, &res, cl);
68 	CLNT_RELEASE(cl);
69 	if (stat != RPC_SUCCESS) {
70 		*minor_status = stat;
71 		return (GSS_S_FAILURE);
72 	}
73 
74 	if (res.major_status != GSS_S_COMPLETE) {
75 		*minor_status = res.minor_status;
76 		return (res.major_status);
77 	}
78 
79 	*uidp = res.uid;
80 	return (GSS_S_COMPLETE);
81 }
82 
83 OM_uint32
84 gss_pname_to_unix_cred(OM_uint32 *minor_status, const gss_name_t pname,
85     const gss_OID mech, uid_t *uidp, gid_t *gidp,
86     int *numgroups, gid_t *groups)
87 
88 {
89 	struct pname_to_uid_res res;
90 	struct pname_to_uid_args args;
91 	enum clnt_stat stat;
92 	int i, n;
93 	CLIENT *cl;
94 
95 	*minor_status = 0;
96 
97 	if (pname == GSS_C_NO_NAME)
98 		return (GSS_S_BAD_NAME);
99 
100 	cl = kgss_gssd_client();
101 	if (cl == NULL)
102 		return (GSS_S_FAILURE);
103 
104 	args.pname = pname->handle;
105 	args.mech = mech;
106 
107 	bzero(&res, sizeof(res));
108 	stat = gssd_pname_to_uid_1(&args, &res, cl);
109 	CLNT_RELEASE(cl);
110 	if (stat != RPC_SUCCESS) {
111 		*minor_status = stat;
112 		return (GSS_S_FAILURE);
113 	}
114 
115 	if (res.major_status != GSS_S_COMPLETE) {
116 		*minor_status = res.minor_status;
117 		return (res.major_status);
118 	}
119 
120 	*uidp = res.uid;
121 	*gidp = res.gid;
122 	n = res.gidlist.gidlist_len;
123 	if (n > *numgroups)
124 		n = *numgroups;
125 	for (i = 0; i < n; i++)
126 		groups[i] = res.gidlist.gidlist_val[i];
127 	*numgroups = n;
128 
129 	xdr_free((xdrproc_t) xdr_pname_to_uid_res, &res);
130 
131 	return (GSS_S_COMPLETE);
132 }
133