xref: /freebsd/sys/kgssapi/gss_pname_to_uid.c (revision 8d20be1e22095c27faf8fe8b2f0d089739cc742e)
1 /*-
2  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
3  * Authors: Doug Rabson <dfr@rabson.org>
4  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30 
31 #include <sys/param.h>
32 #include <sys/kernel.h>
33 #include <sys/kobj.h>
34 #include <sys/lock.h>
35 #include <sys/malloc.h>
36 #include <sys/mutex.h>
37 
38 #include <kgssapi/gssapi.h>
39 #include <kgssapi/gssapi_impl.h>
40 
41 #include "kgss_if.h"
42 
43 OM_uint32
44 gss_pname_to_uid(OM_uint32 *minor_status, const gss_name_t pname,
45     const gss_OID mech, uid_t *uidp)
46 {
47 	struct pname_to_uid_res res;
48 	struct pname_to_uid_args args;
49 	enum clnt_stat stat;
50 	CLIENT *cl;
51 
52 	*minor_status = 0;
53 
54 	if (pname == GSS_C_NO_NAME)
55 		return (GSS_S_BAD_NAME);
56 
57 	cl = kgss_gssd_client();
58 	if (cl == NULL)
59 		return (GSS_S_FAILURE);
60 
61 	args.pname = pname->handle;
62 	args.mech = mech;
63 
64 	bzero(&res, sizeof(res));
65 	stat = gssd_pname_to_uid_1(&args, &res, cl);
66 	CLNT_RELEASE(cl);
67 	if (stat != RPC_SUCCESS) {
68 		*minor_status = stat;
69 		return (GSS_S_FAILURE);
70 	}
71 
72 	if (res.major_status != GSS_S_COMPLETE) {
73 		*minor_status = res.minor_status;
74 		return (res.major_status);
75 	}
76 
77 	*uidp = res.uid;
78 	return (GSS_S_COMPLETE);
79 }
80 
81 OM_uint32
82 gss_pname_to_unix_cred(OM_uint32 *minor_status, const gss_name_t pname,
83     const gss_OID mech, uid_t *uidp, gid_t *gidp,
84     int *numgroups, gid_t *groups)
85 
86 {
87 	struct pname_to_uid_res res;
88 	struct pname_to_uid_args args;
89 	enum clnt_stat stat;
90 	int i, n;
91 	CLIENT *cl;
92 
93 	*minor_status = 0;
94 
95 	if (pname == GSS_C_NO_NAME)
96 		return (GSS_S_BAD_NAME);
97 
98 	cl = kgss_gssd_client();
99 	if (cl == NULL)
100 		return (GSS_S_FAILURE);
101 
102 	args.pname = pname->handle;
103 	args.mech = mech;
104 
105 	bzero(&res, sizeof(res));
106 	stat = gssd_pname_to_uid_1(&args, &res, cl);
107 	CLNT_RELEASE(cl);
108 	if (stat != RPC_SUCCESS) {
109 		*minor_status = stat;
110 		return (GSS_S_FAILURE);
111 	}
112 
113 	if (res.major_status != GSS_S_COMPLETE) {
114 		*minor_status = res.minor_status;
115 		return (res.major_status);
116 	}
117 
118 	*uidp = res.uid;
119 	*gidp = res.gid;
120 	n = res.gidlist.gidlist_len;
121 	if (n > *numgroups)
122 		n = *numgroups;
123 	for (i = 0; i < n; i++)
124 		groups[i] = res.gidlist.gidlist_val[i];
125 	*numgroups = n;
126 
127 	xdr_free((xdrproc_t) xdr_pname_to_uid_res, &res);
128 
129 	return (GSS_S_COMPLETE);
130 }
131