xref: /freebsd/sys/kgssapi/gss_pname_to_uid.c (revision 7aa383846770374466b1dcb2cefd71bde9acf463)
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/malloc.h>
35 
36 #include <kgssapi/gssapi.h>
37 #include <kgssapi/gssapi_impl.h>
38 
39 #include "kgss_if.h"
40 
41 OM_uint32
42 gss_pname_to_uid(OM_uint32 *minor_status, const gss_name_t pname,
43     const gss_OID mech, uid_t *uidp)
44 {
45 	struct pname_to_uid_res res;
46 	struct pname_to_uid_args args;
47 	enum clnt_stat stat;
48 
49 	*minor_status = 0;
50 
51 	if (!kgss_gssd_handle)
52 		return (GSS_S_FAILURE);
53 
54 	if (pname == GSS_C_NO_NAME)
55 		return (GSS_S_BAD_NAME);
56 
57 	args.pname = pname->handle;
58 	args.mech = mech;
59 
60 	bzero(&res, sizeof(res));
61 	stat = gssd_pname_to_uid_1(&args, &res, kgss_gssd_handle);
62 	if (stat != RPC_SUCCESS) {
63 		*minor_status = stat;
64 		return (GSS_S_FAILURE);
65 	}
66 
67 	if (res.major_status != GSS_S_COMPLETE) {
68 		*minor_status = res.minor_status;
69 		return (res.major_status);
70 	}
71 
72 	*uidp = res.uid;
73 	return (GSS_S_COMPLETE);
74 }
75 
76 OM_uint32
77 gss_pname_to_unix_cred(OM_uint32 *minor_status, const gss_name_t pname,
78     const gss_OID mech, uid_t *uidp, gid_t *gidp,
79     int *numgroups, gid_t *groups)
80 
81 {
82 	struct pname_to_uid_res res;
83 	struct pname_to_uid_args args;
84 	enum clnt_stat stat;
85 	int i, n;
86 
87 	*minor_status = 0;
88 
89 	if (!kgss_gssd_handle)
90 		return (GSS_S_FAILURE);
91 
92 	if (pname == GSS_C_NO_NAME)
93 		return (GSS_S_BAD_NAME);
94 
95 	args.pname = pname->handle;
96 	args.mech = mech;
97 
98 	bzero(&res, sizeof(res));
99 	stat = gssd_pname_to_uid_1(&args, &res, kgss_gssd_handle);
100 	if (stat != RPC_SUCCESS) {
101 		*minor_status = stat;
102 		return (GSS_S_FAILURE);
103 	}
104 
105 	if (res.major_status != GSS_S_COMPLETE) {
106 		*minor_status = res.minor_status;
107 		return (res.major_status);
108 	}
109 
110 	*uidp = res.uid;
111 	*gidp = res.gid;
112 	n = res.gidlist.gidlist_len;
113 	if (n > *numgroups)
114 		n = *numgroups;
115 	for (i = 0; i < n; i++)
116 		groups[i] = res.gidlist.gidlist_val[i];
117 	*numgroups = n;
118 
119 	xdr_free((xdrproc_t) xdr_pname_to_uid_res, &res);
120 
121 	return (GSS_S_COMPLETE);
122 }
123