1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
#include "includes.h"
#ifdef HAVE_OSF_SIA
#include "ssh.h"
#include "auth-sia.h"
#include "log.h"
#include "servconf.h"
#include "canohost.h"
#include <sia.h>
#include <siad.h>
#include <pwd.h>
#include <signal.h>
#include <setjmp.h>
#include <sys/resource.h>
#include <unistd.h>
#include <string.h>
extern ServerOptions options;
extern int saved_argc;
extern char **saved_argv;
extern int errno;
int
auth_sia_password(char *user, char *pass)
{
int ret;
SIAENTITY *ent = NULL;
const char *host;
host = get_canonical_hostname(options.reverse_mapping_check);
if (!user || !pass)
return(0);
if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, NULL, 0,
NULL) != SIASUCCESS)
return(0);
if ((ret = sia_ses_authent(NULL, pass, ent)) != SIASUCCESS) {
error("couldn't authenticate %s from %s", user, host);
if (ret & SIASTOP)
sia_ses_release(&ent);
return(0);
}
sia_ses_release(&ent);
return(1);
}
void
session_setup_sia(char *user, char *tty)
{
int ret;
struct passwd *pw;
SIAENTITY *ent = NULL;
const char *host;
host = get_canonical_hostname (options.reverse_mapping_check);
if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, tty, 0,
NULL) != SIASUCCESS) {
error("sia_ses_init failed");
exit(1);
}
if ((pw = getpwnam(user)) == NULL) {
sia_ses_release(&ent);
error("getpwnam(%s) failed: %s", user, strerror(errno));
exit(1);
}
if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) {
sia_ses_release(&ent);
error("sia_make_entity_pwd failed");
exit(1);
}
ent->authtype = SIA_A_NONE;
if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS) {
error("couldn't establish session for %s from %s", user,
host);
exit(1);
}
if (setpriority(PRIO_PROCESS, 0, 0) == -1) {
sia_ses_release(&ent);
error("setpriority failed: %s", strerror (errno));
exit(1);
}
if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS) {
error("couldn't launch session for %s from %s", user, host);
exit(1);
}
sia_ses_release(&ent);
if (setreuid(geteuid(), geteuid()) < 0) {
error("setreuid failed: %s", strerror (errno));
exit(1);
}
}
#endif /* HAVE_OSF_SIA */
|
