1 /* cvm/cvm-unix.c - UNIX/POSIX-standard CVM module
2 * Copyright (C) 2010 Bruce Guenter <bruce@untroubled.org>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18 #include <sys/types.h>
19 #include <errno.h>
20 #include <grp.h>
21 #include <pwd.h>
22 #include <stdlib.h>
23 #include <string.h>
24
25 #include <bglibs/sysdeps.h>
26
27 #include "module.h"
28
29 const char program[] = "cvm-unix";
30
31 extern char* crypt(const char* key, const char* salt);
32
cvm_module_init(void)33 int cvm_module_init(void)
34 {
35 return 0;
36 }
37
38 extern int cvm_getpwnam(const char*, struct passwd**);
39
40 static struct passwd* pw;
41 static struct group* gr;
42
cvm_module_lookup(void)43 int cvm_module_lookup(void)
44 {
45 int err;
46 if ((err = cvm_getpwnam(cvm_module_credentials[CVM_CRED_ACCOUNT].s, &pw)) != 0)
47 return err;
48 if (pw->pw_passwd == 0) return CVME_PERMFAIL;
49 return 0;
50 }
51
cvm_module_authenticate(void)52 int cvm_module_authenticate(void)
53 {
54 CVM_CRED_REQUIRED(PASSWORD);
55 if (strcmp(crypt(cvm_module_credentials[CVM_CRED_PASSWORD].s, pw->pw_passwd),
56 pw->pw_passwd) != 0)
57 return CVME_PERMFAIL;
58 return 0;
59 }
60
cvm_module_results(void)61 int cvm_module_results(void)
62 {
63 char* tmp;
64 if ((tmp = strchr(pw->pw_gecos, ',')) != 0)
65 *tmp = 0;
66
67 cvm_fact_username = pw->pw_name;
68 cvm_fact_userid = pw->pw_uid;
69 cvm_fact_groupid = pw->pw_gid;
70 cvm_fact_realname = pw->pw_gecos;
71 cvm_fact_directory = pw->pw_dir;
72 cvm_fact_shell = pw->pw_shell;
73
74 cvm_module_fact_uint(CVM_FACT_SUPP_GROUPID, pw->pw_gid);
75 if (cvm_fact_groupname) free((char*)cvm_fact_groupname);
76 cvm_fact_groupname = 0;
77 setgrent();
78 while ((gr = getgrent()) != 0) {
79 if (gr->gr_gid == pw->pw_gid)
80 cvm_fact_groupname = strdup(gr->gr_name);
81 else {
82 unsigned i;
83 for (i = 0; gr->gr_mem[i]; i++)
84 if (strcmp(gr->gr_mem[i], pw->pw_name) == 0) {
85 cvm_module_fact_uint(CVM_FACT_SUPP_GROUPID, gr->gr_gid);
86 break;
87 }
88 }
89 }
90 endgrent();
91
92 return 0;
93 }
94
cvm_module_stop(void)95 void cvm_module_stop(void)
96 {
97 }
98