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1 | /* | |
2 | * Copyright (c) 2000 Andre Lucas. All rights reserved. | |
3 | * | |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted provided that the following conditions | |
6 | * are met: | |
7 | * 1. Redistributions of source code must retain the above copyright | |
8 | * notice, this list of conditions and the following disclaimer. | |
9 | * 2. Redistributions in binary form must reproduce the above copyright | |
10 | * notice, this list of conditions and the following disclaimer in the | |
11 | * documentation and/or other materials provided with the distribution. | |
12 | * | |
13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
23 | */ | |
24 | ||
25 | /** | |
26 | ** logintest.c: simple test driver for platform-independent login recording | |
27 | ** and lastlog retrieval | |
28 | **/ | |
29 | ||
30 | #include "includes.h" | |
31 | ||
32 | #include <sys/types.h> | |
33 | #include <sys/wait.h> | |
34 | #include <sys/socket.h> | |
35 | ||
36 | #include <netinet/in.h> | |
37 | ||
38 | #include <unistd.h> | |
39 | #include <stdlib.h> | |
40 | #include <stdio.h> | |
41 | #include <string.h> | |
42 | #include <pwd.h> | |
43 | #include <netdb.h> | |
44 | #ifdef HAVE_TIME_H | |
45 | #include <time.h> | |
46 | #endif | |
47 | ||
48 | #include "loginrec.h" | |
49 | ||
50 | extern char *__progname; | |
51 | ||
52 | #define PAUSE_BEFORE_LOGOUT 3 | |
53 | ||
54 | int nologtest = 0; | |
55 | int compile_opts_only = 0; | |
56 | int be_verbose = 0; | |
57 | ||
58 | ||
59 | /* Dump a logininfo to stdout. Assumes a tab size of 8 chars. */ | |
60 | void | |
61 | dump_logininfo(struct logininfo *li, char *descname) | |
62 | { | |
63 | /* yes I know how nasty this is */ | |
64 | printf("struct logininfo %s = {\n\t" | |
65 | "progname\t'%s'\n\ttype\t\t%d\n\t" | |
66 | "pid\t\t%d\n\tuid\t\t%d\n\t" | |
67 | "line\t\t'%s'\n\tusername\t'%s'\n\t" | |
68 | "hostname\t'%s'\n\texit\t\t%d\n\ttermination\t%d\n\t" | |
69 | "tv_sec\t%d\n\ttv_usec\t%d\n\t" | |
70 | "struct login_netinfo hostaddr {\n\t\t" | |
71 | "struct sockaddr sa {\n" | |
72 | "\t\t\tfamily\t%d\n\t\t}\n" | |
73 | "\t}\n" | |
74 | "}\n", | |
75 | descname, li->progname, li->type, | |
76 | li->pid, li->uid, li->line, | |
77 | li->username, li->hostname, li->exit, | |
78 | li->termination, li->tv_sec, li->tv_usec, | |
79 | li->hostaddr.sa.sa_family); | |
80 | } | |
81 | ||
82 | ||
83 | int | |
84 | testAPI() | |
85 | { | |
86 | struct logininfo *li1; | |
87 | struct passwd *pw; | |
88 | struct hostent *he; | |
89 | struct sockaddr_in sa_in4; | |
90 | char cmdstring[256], stripline[8]; | |
91 | char username[32]; | |
92 | #ifdef HAVE_TIME_H | |
93 | time_t t0, t1, t2, logintime, logouttime; | |
94 | char s_t0[64],s_t1[64],s_t2[64]; | |
95 | char s_logintime[64], s_logouttime[64]; /* ctime() strings */ | |
96 | #endif | |
97 | ||
98 | printf("**\n** Testing the API...\n**\n"); | |
99 | ||
100 | pw = getpwuid(getuid()); | |
101 | strlcpy(username, pw->pw_name, sizeof(username)); | |
102 | ||
103 | /* gethostname(hostname, sizeof(hostname)); */ | |
104 | ||
105 | printf("login_alloc_entry test (no host info):\n"); | |
106 | ||
107 | /* FIXME fake tty more effectively - this could upset some platforms */ | |
108 | li1 = login_alloc_entry((int)getpid(), username, NULL, ttyname(0)); | |
109 | strlcpy(li1->progname, "OpenSSH-logintest", sizeof(li1->progname)); | |
110 | ||
111 | if (be_verbose) | |
112 | dump_logininfo(li1, "li1"); | |
113 | ||
114 | printf("Setting host address info for 'localhost' (may call out):\n"); | |
115 | if (! (he = gethostbyname("localhost"))) { | |
116 | printf("Couldn't set hostname(lookup failed)\n"); | |
117 | } else { | |
118 | /* NOTE: this is messy, but typically a program wouldn't have to set | |
119 | * any of this, a sockaddr_in* would be already prepared */ | |
120 | memcpy((void *)&(sa_in4.sin_addr), (void *)&(he->h_addr_list[0][0]), | |
121 | sizeof(struct in_addr)); | |
122 | login_set_addr(li1, (struct sockaddr *) &sa_in4, sizeof(sa_in4)); | |
123 | strlcpy(li1->hostname, "localhost", sizeof(li1->hostname)); | |
124 | } | |
125 | if (be_verbose) | |
126 | dump_logininfo(li1, "li1"); | |
127 | ||
128 | if ((int)geteuid() != 0) { | |
129 | printf("NOT RUNNING LOGIN TESTS - you are not root!\n"); | |
130 | return 1; | |
131 | } | |
132 | ||
133 | if (nologtest) | |
134 | return 1; | |
135 | ||
136 | line_stripname(stripline, li1->line, sizeof(stripline)); | |
137 | ||
138 | printf("Performing an invalid login attempt (no type field)\n--\n"); | |
139 | login_write(li1); | |
140 | printf("--\n(Should have written errors to stderr)\n"); | |
141 | ||
142 | #ifdef HAVE_TIME_H | |
143 | (void)time(&t0); | |
144 | strlcpy(s_t0, ctime(&t0), sizeof(s_t0)); | |
145 | t1 = login_get_lastlog_time(getuid()); | |
146 | strlcpy(s_t1, ctime(&t1), sizeof(s_t1)); | |
147 | printf("Before logging in:\n\tcurrent time is %d - %s\t" | |
148 | "lastlog time is %d - %s\n", | |
149 | (int)t0, s_t0, (int)t1, s_t1); | |
150 | #endif | |
151 | ||
152 | printf("Performing a login on line %s ", stripline); | |
153 | #ifdef HAVE_TIME_H | |
154 | (void)time(&logintime); | |
155 | strlcpy(s_logintime, ctime(&logintime), sizeof(s_logintime)); | |
156 | printf("at %d - %s", (int)logintime, s_logintime); | |
157 | #endif | |
158 | printf("--\n"); | |
159 | login_login(li1); | |
160 | ||
161 | snprintf(cmdstring, sizeof(cmdstring), "who | grep '%s '", | |
162 | stripline); | |
163 | system(cmdstring); | |
164 | ||
165 | printf("--\nPausing for %d second(s)...\n", PAUSE_BEFORE_LOGOUT); | |
166 | sleep(PAUSE_BEFORE_LOGOUT); | |
167 | ||
168 | printf("Performing a logout "); | |
169 | #ifdef HAVE_TIME_H | |
170 | (void)time(&logouttime); | |
171 | strlcpy(s_logouttime, ctime(&logouttime), sizeof(s_logouttime)); | |
172 | printf("at %d - %s", (int)logouttime, s_logouttime); | |
173 | #endif | |
174 | printf("\nThe root login shown above should be gone.\n" | |
175 | "If the root login hasn't gone, but another user on the same\n" | |
176 | "pty has, this is OK - we're hacking it here, and there\n" | |
177 | "shouldn't be two users on one pty in reality...\n" | |
178 | "-- ('who' output follows)\n"); | |
179 | login_logout(li1); | |
180 | ||
181 | system(cmdstring); | |
182 | printf("-- ('who' output ends)\n"); | |
183 | ||
184 | #ifdef HAVE_TIME_H | |
185 | t2 = login_get_lastlog_time(getuid()); | |
186 | strlcpy(s_t2, ctime(&t2), sizeof(s_t2)); | |
187 | printf("After logging in, lastlog time is %d - %s\n", (int)t2, s_t2); | |
188 | if (t1 == t2) | |
189 | printf("The lastlog times before and after logging in are the " | |
190 | "same.\nThis indicates that lastlog is ** NOT WORKING " | |
191 | "CORRECTLY **\n"); | |
192 | else if (t0 != t2) | |
193 | /* We can be off by a second or so, even when recording works fine. | |
194 | * I'm not 100% sure why, but it's true. */ | |
195 | printf("** The login time and the lastlog time differ.\n" | |
196 | "** This indicates that lastlog is either recording the " | |
197 | "wrong time,\n** or retrieving the wrong entry.\n" | |
198 | "If it's off by less than %d second(s) " | |
199 | "run the test again.\n", PAUSE_BEFORE_LOGOUT); | |
200 | else | |
201 | printf("lastlog agrees with the login time. This is a good thing.\n"); | |
202 | ||
203 | #endif | |
204 | ||
205 | printf("--\nThe output of 'last' shown next should have " | |
206 | "an entry for root \n on %s for the time shown above:\n--\n", | |
207 | stripline); | |
208 | snprintf(cmdstring, sizeof(cmdstring), "last | grep '%s ' | head -3", | |
209 | stripline); | |
210 | system(cmdstring); | |
211 | ||
212 | printf("--\nEnd of login test.\n"); | |
213 | ||
214 | login_free_entry(li1); | |
215 | ||
216 | return 1; | |
217 | } /* testAPI() */ | |
218 | ||
219 | ||
220 | void | |
221 | testLineName(char *line) | |
222 | { | |
223 | /* have to null-terminate - these functions are designed for | |
224 | * structures with fixed-length char arrays, and don't null-term.*/ | |
225 | char full[17], strip[9], abbrev[5]; | |
226 | ||
227 | memset(full, '\0', sizeof(full)); | |
228 | memset(strip, '\0', sizeof(strip)); | |
229 | memset(abbrev, '\0', sizeof(abbrev)); | |
230 | ||
231 | line_fullname(full, line, sizeof(full)-1); | |
232 | line_stripname(strip, full, sizeof(strip)-1); | |
233 | line_abbrevname(abbrev, full, sizeof(abbrev)-1); | |
234 | printf("%s: %s, %s, %s\n", line, full, strip, abbrev); | |
235 | ||
236 | } /* testLineName() */ | |
237 | ||
238 | ||
239 | int | |
240 | testOutput() | |
241 | { | |
242 | printf("**\n** Testing linename functions\n**\n"); | |
243 | testLineName("/dev/pts/1"); | |
244 | testLineName("pts/1"); | |
245 | testLineName("pts/999"); | |
246 | testLineName("/dev/ttyp00"); | |
247 | testLineName("ttyp00"); | |
248 | ||
249 | return 1; | |
250 | } /* testOutput() */ | |
251 | ||
252 | ||
253 | /* show which options got compiled in */ | |
254 | void | |
255 | showOptions(void) | |
256 | { | |
257 | printf("**\n** Compile-time options\n**\n"); | |
258 | ||
259 | printf("login recording methods selected:\n"); | |
260 | #ifdef USE_LOGIN | |
261 | printf("\tUSE_LOGIN\n"); | |
262 | #endif | |
263 | #ifdef USE_UTMP | |
264 | printf("\tUSE_UTMP (UTMP_FILE=%s)\n", UTMP_FILE); | |
265 | #endif | |
266 | #ifdef USE_UTMPX | |
267 | printf("\tUSE_UTMPX (UTMPX_FILE=%s)\n", UTMPX_FILE); | |
268 | #endif | |
269 | #ifdef USE_WTMP | |
270 | printf("\tUSE_WTMP (WTMP_FILE=%s)\n", WTMP_FILE); | |
271 | #endif | |
272 | #ifdef USE_WTMPX | |
273 | printf("\tUSE_WTMPX (WTMPX_FILE=%s)\n", WTMPX_FILE); | |
274 | #endif | |
275 | #ifdef USE_LASTLOG | |
276 | printf("\tUSE_LASTLOG (LASTLOG_FILE=%s)\n", LASTLOG_FILE); | |
277 | #endif | |
278 | printf("\n"); | |
279 | ||
280 | } /* showOptions() */ | |
281 | ||
282 | ||
283 | int | |
284 | main(int argc, char *argv[]) | |
285 | { | |
286 | printf("Platform-independent login recording test driver\n"); | |
287 | ||
288 | __progname = ssh_get_progname(argv[0]); | |
289 | if (argc == 2) { | |
290 | if (strncmp(argv[1], "-i", 3) == 0) | |
291 | compile_opts_only = 1; | |
292 | else if (strncmp(argv[1], "-v", 3) == 0) | |
293 | be_verbose=1; | |
294 | } | |
295 | ||
296 | if (!compile_opts_only) { | |
297 | if (be_verbose && !testOutput()) | |
298 | return 1; | |
299 | ||
300 | if (!testAPI()) | |
301 | return 1; | |
302 | } | |
303 | ||
304 | showOptions(); | |
305 | ||
306 | return 0; | |
307 | } /* main() */ | |
308 |