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Commit | Line | Data |
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7ac48069 | 1 | /* $Id$ |
47baf534 | 2 | * |
7ac48069 | 3 | * Server for user registration with Moira and Kerberos. |
47baf534 | 4 | * |
7ac48069 | 5 | * This program is a client of the Kerberos admin_server and a |
6 | * server for the userreg program. It is not a client of the | |
7 | * Moira server as it is linked with libmoiraglue which bypasses | |
8 | * the network protocol. | |
47baf534 | 9 | * |
7ac48069 | 10 | * Copyright (C) 1987-1998 by the Massachusetts Institute of Technology |
11 | * For copying and distribution information, please see the file | |
12 | * <mit-copyright.h>. | |
47baf534 | 13 | */ |
14 | ||
0a5ff702 | 15 | #include <mit-copyright.h> |
7ac48069 | 16 | #include <moira.h> |
17 | #include <moira_site.h> | |
18 | ||
19 | #include <sys/utsname.h> | |
20 | ||
21 | #include <errno.h> | |
40174425 | 22 | #include <stdio.h> |
5eaef520 | 23 | #include <stdlib.h> |
16e5277e | 24 | #include <string.h> |
7ac48069 | 25 | #include <time.h> |
26 | ||
40174425 | 27 | #include <des.h> |
28 | #include <kadm.h> | |
29 | #include <kadm_err.h> | |
7ac48069 | 30 | #include <krb.h> |
31 | ||
a640951a | 32 | #include "reg_svr.h" |
47baf534 | 33 | |
7ac48069 | 34 | RCSID("$Header$"); |
35 | ||
f46fccfa | 36 | extern char admin_errmsg[]; |
47baf534 | 37 | |
85330553 | 38 | FILE *journal; |
39 | char *whoami; | |
40 | ||
7ac48069 | 41 | int parse_encrypted(struct msg *message, struct db_data *data); |
42 | int parse_encrypted(struct msg *message, struct db_data *data); | |
43 | int db_callproc(int argc, char **argv, void *queue); | |
44 | int find_user(struct msg *message); | |
45 | int verify_user(struct msg *message, char *retval); | |
46 | int ureg_kadm_init(void); | |
47 | int reserve_krb(char *login); | |
48 | int setpass_krb(char *login, char *password); | |
49 | int reserve_user(struct msg *message, char *retval); | |
50 | int set_final_status(struct msg *message); | |
51 | int set_password(struct msg *message, char *retval); | |
52 | int getuserinfo(int argc, char **argv, void *qa); | |
53 | int set_identity(struct msg *message, char *retval); | |
54 | int get_secure(struct msg *message, char *retval); | |
55 | int set_secure(struct msg *message, char *retval); | |
3f5f9b08 | 56 | |
5eaef520 | 57 | int main(int argc, char *argv[]) |
47baf534 | 58 | { |
5eaef520 | 59 | struct msg message; /* Storage for parsed packet */ |
60 | int status = SUCCESS; /* Error status */ | |
61 | char retval[BUFSIZ]; /* Buffer to hold return message for client */ | |
62 | ||
5eaef520 | 63 | /* Initialize */ |
64 | whoami = argv[0]; | |
65 | ||
66 | /* Error messages sent one line at a time */ | |
67 | setvbuf(stderr, NULL, _IOLBF, BUFSIZ); | |
68 | setvbuf(stdout, NULL, _IOLBF, BUFSIZ); | |
5eaef520 | 69 | |
70 | /* Initialize com_err error tables */ | |
71 | init_ureg_err_tbl(); | |
72 | init_krb_err_tbl(); | |
73 | init_kadm_err_tbl(); | |
74 | initialize_gdss_error_table(); | |
75 | ||
76 | /* Set the name of our kerberos ticket file */ | |
77 | krb_set_tkt_string("/tmp/tkt_ureg"); | |
78 | ||
79 | /* Connect to the Moira server */ | |
80 | if ((status = mr_connect(MOIRA_SERVER)) != MR_SUCCESS) | |
3e9b5b7b | 81 | { |
5eaef520 | 82 | com_err(whoami, status, " on mr_connect"); |
83 | exit(1); | |
78eff417 | 84 | } |
5eaef520 | 85 | |
86 | /* Authorize, telling the server who you are */ | |
87 | if ((status = mr_auth(whoami)) != MR_SUCCESS) | |
3e9b5b7b | 88 | { |
5eaef520 | 89 | com_err(whoami, status, " on mr_auth"); |
90 | exit(1); | |
78eff417 | 91 | } |
5eaef520 | 92 | |
93 | journal = fopen(REGJOURNAL, "a"); | |
94 | if (!journal) | |
95 | { | |
96 | com_err(whoami, errno, " while opening journal file"); | |
97 | exit(1); | |
0349fd4d | 98 | } |
5eaef520 | 99 | |
100 | /* Allow request layer to initialize */ | |
101 | req_initialize(); | |
102 | ||
103 | /* Sit around waiting for requests from the client. */ | |
104 | for (;;) | |
3e9b5b7b | 105 | { |
5eaef520 | 106 | get_request(&message); |
107 | ||
108 | switch (message.request) | |
3e9b5b7b | 109 | { |
5eaef520 | 110 | case UREG_VERIFY_USER: |
111 | status = verify_user(&message, retval); | |
112 | break; | |
113 | case UREG_RESERVE_LOGIN: | |
114 | status = reserve_user(&message, retval); | |
115 | break; | |
116 | case UREG_SET_PASSWORD: | |
117 | case UREG_GET_KRB: | |
118 | status = set_password(&message, retval); | |
119 | break; | |
120 | case UREG_SET_IDENT: | |
121 | status = set_identity(&message, retval); | |
122 | break; | |
123 | case UREG_GET_SECURE: | |
124 | status = get_secure(&message, retval); | |
125 | break; | |
126 | case UREG_SET_SECURE: | |
127 | status = set_secure(&message, retval); | |
128 | break; | |
129 | default: | |
130 | status = UREG_UNKNOWN_REQUEST; | |
131 | critical_alert(FAIL_INST, "Unknown request %d from userreg.", | |
132 | message.request); | |
133 | break; | |
47baf534 | 134 | } |
5eaef520 | 135 | |
136 | /* Report what happened to client */ | |
137 | report(status, retval); | |
47baf534 | 138 | } |
139 | } | |
140 | ||
3e9b5b7b | 141 | /* This routine makes sure that the ID from the database matches |
142 | the ID sent accross in the packet. The information in the packet | |
143 | was created in the following way: | |
144 | ||
877a2ce9 | 145 | The database used to contain encrypted IDs. Now we don't encrypt |
146 | them in the database, although there are still some encrypted IDs | |
147 | there. | |
148 | ||
803d15cb | 149 | The plain text ID number was encrypted via EncryptID() resulting |
40174425 | 150 | in the form that would appear in the Moira database. This is |
5eaef520 | 151 | concatenated to the plain text ID so that the ID string contains plain |
29bc4461 | 152 | text ID followed by a null followed by the encrypted ID. Other |
153 | information such as the username or password is appended. The whole | |
154 | thing is then DES encrypted using the encrypted ID as the source of | |
155 | the key. | |
3e9b5b7b | 156 | |
877a2ce9 | 157 | This routine tries each ID in the database that belongs |
5eaef520 | 158 | to someone with this user's first and last name and tries to |
159 | decrypt the packet with this information. If it succeeds, it returns | |
29bc4461 | 160 | zero and initializes all the fields of the formatted packet structure |
161 | that depend on the encrypted information. */ | |
5eaef520 | 162 | |
163 | int parse_encrypted(struct msg *message, struct db_data *data) | |
47baf534 | 164 | { |
5eaef520 | 165 | des_cblock key; /* The key for DES en/decryption */ |
166 | des_key_schedule sched; /* En/decryption schedule */ | |
167 | static char decrypt[BUFSIZ]; /* Buffer to hold decrypted information */ | |
168 | long decrypt_len; /* Length of decypted ID information */ | |
5eaef520 | 169 | static char hashid[14]; /* Buffer to hold one-way encrypted ID */ |
170 | char idnumber[BUFSIZ]; /* Buffer to hold plain-text ID */ | |
171 | char *temp; /* A temporary string pointer */ | |
172 | int len; /* Keeps track of length left in packet */ | |
173 | int status = SUCCESS; /* Error status */ | |
174 | ||
175 | /* Make the decrypted information length the same as the encrypted | |
176 | information length. Both are integral multples of eight bytes | |
177 | because of the DES encryption routines. */ | |
178 | decrypt_len = message->encrypted_len; | |
179 | ||
180 | /* Get key from the possibly one-way encrypted ID in the Moira database */ | |
181 | if (data->mit_id[0] >= '0' && data->mit_id[0] <= '9') | |
bac67528 | 182 | { |
5eaef520 | 183 | char buf[32]; |
184 | ||
185 | EncryptID(buf, data->mit_id, message->first, message->last); | |
186 | des_string_to_key(buf, key); | |
187 | } | |
188 | else | |
189 | des_string_to_key(data->mit_id, key); | |
190 | ||
191 | /* Get schedule from key */ | |
192 | des_key_sched(key, sched); | |
193 | /* Decrypt information from packet using this key. Since decrypt_len | |
194 | is an integral multiple of eight bytes, it will probably be null- | |
195 | padded. */ | |
196 | des_pcbc_encrypt(message->encrypted, decrypt, decrypt_len, | |
197 | sched, key, DES_DECRYPT); | |
198 | ||
199 | /* Extract the plain text and encrypted ID fields from the decrypted | |
200 | packet information. */ | |
201 | /* Since the decrypted information starts with the plain-text ID | |
202 | followed by a null, if the decryption worked, this will only | |
203 | copy the plain text part of the decrypted information. It is | |
204 | important that strncpy be used because if we are not using the | |
205 | correct key, there is no guarantee that a null will occur | |
206 | anywhere in the string. */ | |
207 | strncpy(idnumber, decrypt, decrypt_len); | |
208 | /* Check that the idnumber of a mismatched decryption doesn't overflow | |
209 | * the buffer. */ | |
210 | if (strlen(idnumber) != 9) | |
211 | return FAILURE; | |
212 | ||
213 | /* Point temp to the end of the plain text ID number. */ | |
214 | temp = decrypt + strlen(idnumber) + 1; | |
215 | /* Find out how much more packet there is. */ | |
216 | len = message->encrypted_len - (temp - decrypt); | |
217 | /* Copy the next CRYPT_LEN bytes of the decrypted information into | |
218 | hashid if there are CRYPT_LEN more bytes to copy. There will be | |
219 | if we have the right key. */ | |
220 | strncpy(hashid, temp, min(len, CRYPT_LEN)); | |
221 | /* Point temp to the end of the encrypted ID field */ | |
222 | temp += strlen(hashid) + 1; | |
223 | /* Find out how much more room there is. */ | |
224 | len = message->encrypted_len - (temp - decrypt); | |
225 | ||
226 | /* Now compare encrypted ID and clear text ID for a match. */ | |
227 | if (strcmp(hashid, data->mit_id) && | |
228 | strcmp(idnumber, data->mit_id)) | |
229 | status = FAILURE; | |
230 | ||
231 | if (status == SUCCESS) | |
232 | { | |
233 | /* We made it. Now we can finish initializing message. */ | |
234 | /* Point leftover to whatever is left over! */ | |
235 | message->leftover = temp; | |
236 | message->leftover_len = len; | |
237 | /* Since we know we have the right user, fill in the information | |
238 | from the Moira database. */ | |
239 | message->db.reg_status = data->reg_status; | |
240 | strncpy(message->db.uid, data->uid, sizeof(message->db.uid)); | |
241 | strncpy(message->db.mit_id, data->mit_id, sizeof(message->db.mit_id)); | |
242 | strncpy(message->db.login, data->login, sizeof(message->db.login)); | |
bac67528 | 243 | } |
47baf534 | 244 | |
47baf534 | 245 | return status; |
246 | } | |
247 | ||
2ce085d2 | 248 | /* This function is called by mr_query after each tuple found. It is |
29bc4461 | 249 | used by find_user to cache information about each user found. */ |
7ac48069 | 250 | int db_callproc(int argc, char **argv, void*queue) |
47baf534 | 251 | { |
5eaef520 | 252 | struct db_data *data; /* Structure to store the information in */ |
253 | int status = SUCCESS; /* Error status */ | |
254 | ||
255 | if (argc != U_END) | |
3e9b5b7b | 256 | { |
5eaef520 | 257 | critical_alert(FAIL_INST, "Wrong number of arguments returned " |
258 | "from get_user_account_by_name."); | |
259 | status = MR_ABORT; | |
f46fccfa | 260 | } |
5eaef520 | 261 | else |
3e9b5b7b | 262 | { |
5eaef520 | 263 | /* extract the needed information from the results of the Moira query */ |
264 | data = malloc(sizeof(struct db_data)); | |
265 | data->reg_status = atoi(argv[U_STATE]); | |
266 | strncpy(data->login, argv[U_NAME], sizeof(data->login)); | |
267 | strncpy(data->mit_id, argv[U_MITID], sizeof(data->mit_id)); | |
268 | strncpy(data->uid, argv[U_UID], sizeof(data->uid)); | |
269 | sq_save_data(queue, data); | |
47baf534 | 270 | } |
bac67528 | 271 | |
5eaef520 | 272 | return status; |
bac67528 | 273 | } |
5eaef520 | 274 | |
bac67528 | 275 | /* This routine verifies that a user is allowed to register by finding |
40174425 | 276 | him/her in the Moira database. It returns the status of the Moira |
bac67528 | 277 | query that it calls. */ |
5eaef520 | 278 | int find_user(struct msg *message) |
bac67528 | 279 | { |
803d15cb | 280 | #define GUBN_ARGS 2 /* Arguements needed by get_user_by_name */ |
7ac48069 | 281 | char *q_name; /* Name of Moira query */ |
5eaef520 | 282 | int q_argc; /* Number of arguments for query */ |
283 | char *q_argv[GUBN_ARGS]; /* Arguments to query */ | |
284 | int status = SUCCESS; /* Query return status */ | |
285 | ||
286 | struct save_queue *queue; /* Queue to hold Moira data */ | |
287 | struct db_data *data; /* Structure for data for one tuple */ | |
288 | short verified = FALSE; /* Have we verified the user? */ | |
289 | ||
290 | /* Zero the mit_id field in the formatted packet structure. This | |
291 | being zeroed means that no user was found. */ | |
292 | memset(message->db.mit_id, 0, sizeof(message->db.mit_id)); | |
293 | ||
294 | if (status == SUCCESS) | |
3e9b5b7b | 295 | { |
59ec8dae | 296 | /* Get ready to make a Moira query */ |
5eaef520 | 297 | q_name = "get_user_account_by_name"; |
298 | q_argc = GUBN_ARGS; /* #defined in this routine */ | |
299 | q_argv[0] = message->first; | |
300 | q_argv[1] = message->last; | |
301 | ||
302 | /* Create queue to hold information */ | |
303 | queue = sq_create(); | |
304 | ||
305 | /* Do it */ | |
7ac48069 | 306 | status = mr_query(q_name, q_argc, q_argv, db_callproc, queue); |
5eaef520 | 307 | |
308 | if (status == MR_SUCCESS) | |
bac67528 | 309 | { |
5eaef520 | 310 | /* Traverse the list, freeing data as we go. If sq_get_data() |
311 | returns zero if there is no more data on the queue. */ | |
312 | while (sq_get_data(queue, &data)) | |
bac67528 | 313 | { |
5eaef520 | 314 | if (!verified) |
315 | /* parse_encrypted returns zero on success */ | |
316 | verified = (parse_encrypted(message, data) == SUCCESS); | |
317 | free(data); | |
bac67528 | 318 | } |
319 | } | |
29bc4461 | 320 | |
5eaef520 | 321 | /* Destroy the queue */ |
322 | sq_destroy(queue); | |
47baf534 | 323 | } |
bac67528 | 324 | |
5eaef520 | 325 | return status; |
bac67528 | 326 | } |
327 | ||
5eaef520 | 328 | /* This routine determines whether a user is in the databse and returns |
329 | his state so that other routines can figure out whether he is the | |
330 | correct state for various transactions. */ | |
331 | int verify_user(struct msg *message, char *retval) | |
47baf534 | 332 | { |
5eaef520 | 333 | int status = SUCCESS; /* Return status */ |
bac67528 | 334 | |
5eaef520 | 335 | /* Log that we are about to veryify user */ |
336 | com_err(whoami, 0, "verifying user %s %s", message->first, message->last); | |
bac67528 | 337 | |
5eaef520 | 338 | /* Figure out what user (if any) can be found based on the |
339 | encrypted information in the packet. (See the comment on | |
340 | parse_encrypted().) */ | |
bac67528 | 341 | |
5eaef520 | 342 | status = find_user(message); |
bac67528 | 343 | |
5eaef520 | 344 | /* If Moira coudn't find the user */ |
345 | if (status == MR_NO_MATCH) | |
346 | status = UREG_USER_NOT_FOUND; | |
347 | else if (status == MR_SUCCESS) | |
3e9b5b7b | 348 | { |
5eaef520 | 349 | /* If the information sent over in the packet did not point to a |
350 | valid user, the mit_id field in the formatted packet structure | |
351 | will be empty. */ | |
352 | if (message->db.mit_id[0] == '\0') | |
353 | status = UREG_USER_NOT_FOUND; | |
354 | /* If the user was found but the registration has already started, | |
355 | use this as the status */ | |
356 | else | |
bac67528 | 357 | { |
5eaef520 | 358 | switch (message->db.reg_status) |
bac67528 | 359 | { |
5eaef520 | 360 | case US_NO_LOGIN_YET: |
361 | status = SUCCESS; | |
362 | break; | |
363 | case US_REGISTERED: | |
364 | status = UREG_ALREADY_REGISTERED; | |
365 | break; | |
366 | case US_NO_PASSWD: | |
367 | status = UREG_NO_PASSWD_YET; | |
368 | break; | |
369 | case US_DELETED: | |
370 | status = UREG_DELETED; | |
371 | break; | |
372 | case US_NOT_ALLOWED: | |
373 | status = UREG_NOT_ALLOWED; | |
374 | break; | |
375 | case US_ENROLLED: | |
376 | status = UREG_ENROLLED; | |
377 | break; | |
378 | case US_ENROLL_NOT_ALLOWED: | |
379 | status = UREG_ENROLL_NOT_ALLOWED; | |
380 | break; | |
d8ffd27c | 381 | case US_HALF_ENROLLED: |
5eaef520 | 382 | status = UREG_HALF_ENROLLED; |
383 | break; | |
384 | default: | |
385 | status = UREG_MISC_ERROR; | |
386 | critical_alert(FAIL_INST, "Bad user state %d for login %s.", | |
387 | message->db.reg_status, message->db.login); | |
388 | break; | |
bac67528 | 389 | } |
5eaef520 | 390 | /* Set retval to the login name so that the client can use |
391 | it in the error message it will give the user. */ | |
392 | strcpy(retval, message->db.login); | |
bac67528 | 393 | } |
47baf534 | 394 | } |
bac67528 | 395 | |
5eaef520 | 396 | if (status) |
397 | com_err(whoami, status, " returned from verify_user"); | |
398 | else | |
399 | com_err(whoami, 0, "User verified"); | |
400 | ||
401 | return status; | |
47baf534 | 402 | } |
5eaef520 | 403 | |
404 | int ureg_kadm_init(void) | |
47baf534 | 405 | { |
5eaef520 | 406 | unsigned int status = SUCCESS; /* Return status */ |
407 | static char krbrealm[REALM_SZ]; /* kerberos realm name */ | |
7ac48069 | 408 | static char *host; /* local hostname in principal fmt */ |
5eaef520 | 409 | static int inited = 0; |
410 | char *p; | |
7ac48069 | 411 | struct utsname uts; |
5eaef520 | 412 | |
413 | if (!inited) | |
414 | { | |
415 | inited++; | |
416 | memset(krbrealm, 0, sizeof(krbrealm)); | |
7ac48069 | 417 | if ((status = krb_get_lrealm(krbrealm, 1))) |
5eaef520 | 418 | { |
419 | status += krb_err_base; | |
420 | com_err(whoami, status, " fetching kerberos realm"); | |
421 | exit(1); | |
40174425 | 422 | } |
7ac48069 | 423 | if (uname(&uts) < 0) |
5eaef520 | 424 | com_err(whoami, errno, "getting local hostname"); |
7ac48069 | 425 | host = canonicalize_hostname(strdup(uts.nodename)); |
5eaef520 | 426 | for (p = host; *p && *p != '.'; p++) |
427 | { | |
6b407d0f | 428 | if (isupper(*p)) |
429 | *p = tolower(*p); | |
5eaef520 | 430 | } |
431 | *p = 0; | |
40174425 | 432 | } |
bac67528 | 433 | |
5eaef520 | 434 | /* Get keys for interacting with Kerberos admin server. */ |
435 | /* principal, instance, realm, service, service instance, life, file */ | |
7ac48069 | 436 | if ((status = krb_get_svc_in_tkt(MOIRA_SNAME, host, krbrealm, PWSERV_NAME, |
437 | KADM_SINST, 1, KEYFILE))) | |
5eaef520 | 438 | status += krb_err_base; |
439 | ||
440 | if (status != SUCCESS) | |
441 | com_err(whoami, status, " while get admin tickets"); | |
442 | else | |
443 | { | |
444 | if ((status = kadm_init_link(PWSERV_NAME, KADM_SINST, krbrealm)) != | |
445 | KADM_SUCCESS) | |
446 | com_err(whoami, status, " while initializing kadmin connection"); | |
40174425 | 447 | } |
448 | ||
5eaef520 | 449 | return status; |
47baf534 | 450 | } |
451 | ||
40174425 | 452 | /* |
5eaef520 | 453 | * This routine reserves a principal in kerberos by setting up a |
40174425 | 454 | * principal with a random initial key. |
455 | */ | |
5eaef520 | 456 | int reserve_krb(char *login) |
47baf534 | 457 | { |
5eaef520 | 458 | int status = SUCCESS; |
459 | Kadm_vals new; | |
460 | des_cblock key; | |
461 | u_long *lkey = (u_long *)key; | |
462 | ||
463 | if ((status = ureg_kadm_init()) == SUCCESS) | |
464 | { | |
465 | memset(&new, 0, sizeof(new)); | |
466 | SET_FIELD(KADM_DESKEY, new.fields); | |
467 | SET_FIELD(KADM_NAME, new.fields); | |
468 | ||
469 | des_random_key(key); | |
470 | new.key_low = htonl(lkey[0]); | |
471 | new.key_high = htonl(lkey[1]); | |
472 | strcpy(new.name, login); | |
473 | ||
474 | com_err(whoami, 0, "Creating kerberos principal for %s", login); | |
475 | status = kadm_add(&new); | |
476 | if (status != KADM_SUCCESS) | |
477 | com_err(whoami, status, " while reserving principal"); | |
478 | ||
479 | memset(&new, 0, sizeof(new)); | |
40174425 | 480 | } |
481 | ||
5eaef520 | 482 | dest_tkt(); |
40174425 | 483 | |
5eaef520 | 484 | return status; |
40174425 | 485 | } |
486 | ||
487 | /* | |
5eaef520 | 488 | * This routine reserves a principal in kerberos by setting up a |
40174425 | 489 | * principal with a random initial key. |
490 | */ | |
5eaef520 | 491 | int setpass_krb(char *login, char *password) |
40174425 | 492 | { |
5eaef520 | 493 | int status = SUCCESS; |
494 | Kadm_vals new; | |
495 | des_cblock key; | |
496 | u_long *lkey = (u_long *)key; | |
497 | ||
498 | if ((status = ureg_kadm_init()) == SUCCESS) | |
499 | { | |
500 | memset(&new, 0, sizeof(new)); | |
501 | SET_FIELD(KADM_DESKEY, new.fields); | |
502 | SET_FIELD(KADM_NAME, new.fields); | |
503 | ||
504 | des_string_to_key(password, key); | |
505 | new.key_low = htonl(lkey[0]); | |
506 | new.key_high = htonl(lkey[1]); | |
507 | strcpy(new.name, login); | |
508 | ||
509 | com_err(whoami, 0, "Setting password for %s", login); | |
510 | /* First arguement is not used if user has modify privileges */ | |
511 | if ((status = kadm_mod(&new, &new)) != KADM_SUCCESS) | |
512 | { | |
513 | if (status == KADM_NOENTRY) | |
514 | { | |
515 | com_err(whoami, 0, "kerberos principal doesn't exist; creating"); | |
516 | if ((status = kadm_add(&new)) != KADM_SUCCESS) | |
517 | com_err(whoami, status, " while creating kerberos principal"); | |
40174425 | 518 | } |
5eaef520 | 519 | else |
520 | com_err(whoami, status, " while setting password"); | |
47baf534 | 521 | } |
47baf534 | 522 | } |
5eaef520 | 523 | |
524 | dest_tkt(); | |
525 | return status; | |
47baf534 | 526 | } |
3e9b5b7b | 527 | |
5eaef520 | 528 | int reserve_user(struct msg *message, char *retval) |
47baf534 | 529 | { |
5eaef520 | 530 | int q_argc; /* Number of arguments to query */ |
531 | char *q_argv[3]; /* Arguments to Moira query */ | |
532 | char *q_name; /* Name of Moira query */ | |
533 | int status = SUCCESS; /* General purpose error status */ | |
534 | char fstype_buf[7]; /* Buffer to hold fs_type, a 16 bit number */ | |
535 | char *login; /* The login name the user wants */ | |
44d12d58 | 536 | int i; /* A counter */ |
5eaef520 | 537 | |
538 | /* Log that we are about to reserve a user. */ | |
539 | com_err(whoami, 0, "reserving user %s %s", message->first, message->last); | |
540 | ||
541 | /* Check to make sure that we can verify this user. */ | |
542 | if ((status = verify_user(message, retval)) == SUCCESS) | |
3e9b5b7b | 543 | { |
5eaef520 | 544 | /* Get the requested login name from leftover packet information. */ |
545 | login = message->leftover; | |
546 | ||
547 | /* Check the login name for validity. The login name is currently | |
548 | is allowed to contain lowercase letters in any position and | |
549 | and numbers and underscore characters in any position but the | |
550 | first. */ | |
551 | if ((strlen(login) < MIN_UNAME) || (strlen(login) > MAX_UNAME)) | |
552 | status = UREG_INVALID_UNAME; | |
47baf534 | 553 | } |
5eaef520 | 554 | if (status == SUCCESS) |
555 | if ((login[0] == '_') || isdigit(login[0])) | |
556 | status = UREG_INVALID_UNAME; | |
557 | ||
558 | if (status == SUCCESS) | |
3e9b5b7b | 559 | { |
5eaef520 | 560 | for (i = 0; i < strlen(login); i++) |
561 | { | |
562 | if (!islower(login[i]) && !isdigit(login[i]) && | |
563 | (login[i] != '_')) | |
803d15cb | 564 | { |
5eaef520 | 565 | status = UREG_INVALID_UNAME; |
566 | break; | |
803d15cb | 567 | } |
5eaef520 | 568 | } |
47baf534 | 569 | } |
5eaef520 | 570 | if (status == SUCCESS) |
3e9b5b7b | 571 | { |
5eaef520 | 572 | /* Now that we have a valid user with a valid login... */ |
573 | ||
574 | /* First, try to reserve the user in Moira. */ | |
575 | sprintf(fstype_buf, "%d", MR_FS_STUDENT); | |
576 | q_name = "register_user"; | |
577 | q_argv[0] = message->db.uid; | |
578 | q_argv[1] = login; | |
579 | q_argv[2] = fstype_buf; | |
580 | q_argc = 3; | |
7ac48069 | 581 | status = mr_query(q_name, q_argc, q_argv, NULL, NULL); |
5eaef520 | 582 | switch (status) |
bac67528 | 583 | { |
5eaef520 | 584 | case MR_SUCCESS: |
585 | status = SUCCESS; | |
586 | break; | |
587 | case MR_IN_USE: | |
588 | status = UREG_LOGIN_USED; | |
589 | break; | |
590 | case MR_DEADLOCK: | |
591 | status = UREG_MISC_ERROR; | |
592 | break; | |
593 | default: | |
594 | critical_alert(FAIL_INST, "%s returned from register_user.", | |
595 | error_message(status)); | |
596 | status = UREG_MISC_ERROR; | |
597 | break; | |
bac67528 | 598 | } |
47baf534 | 599 | } |
40174425 | 600 | |
5eaef520 | 601 | if (status == SUCCESS) |
3e9b5b7b | 602 | { |
5eaef520 | 603 | /* |
604 | * Moira login was successfully created; try to reserve kerberos | |
605 | * principal. | |
606 | * | |
607 | * If this routine fails, store the login in the retval so | |
608 | * that it can be used in the client-side error message. | |
609 | */ | |
610 | if ((status = reserve_krb(login)) != SUCCESS) | |
611 | strcpy(retval, login); | |
612 | } | |
613 | ||
614 | if (status) | |
615 | com_err(whoami, status, " returned from reserve_user"); | |
616 | else | |
617 | com_err(whoami, 0, "User reserved"); | |
618 | ||
619 | return status; | |
bac67528 | 620 | } |
47baf534 | 621 | |
5eaef520 | 622 | /* This routine updates a user's registration status to fully |
623 | registered. */ | |
624 | int set_final_status(struct msg *message) | |
47baf534 | 625 | { |
5eaef520 | 626 | char *login; |
627 | char *q_name; /* Name of Moira query */ | |
628 | int q_argc; /* Number of arguments for Moira query */ | |
629 | char *q_argv[2]; /* Arguments to get user by uid */ | |
630 | char state[7]; /* Can hold a 16 bit integer */ | |
631 | int status; /* Error status */ | |
632 | ||
633 | if (message->request == UREG_SET_PASSWORD) | |
634 | sprintf(state, "%d", US_REGISTERED); | |
635 | else if (message->db.reg_status == US_NO_LOGIN_YET) | |
636 | sprintf(state, "%d", US_ENROLLED); | |
637 | else | |
638 | sprintf(state, "%d", US_ENROLL_NOT_ALLOWED); | |
639 | ||
640 | login = message->db.login; | |
641 | com_err(whoami, 0, "Setting final status for %s to %s", login, state); | |
642 | ||
643 | q_name = "update_user_status"; | |
644 | q_argc = 2; | |
645 | q_argv[0] = login; | |
646 | q_argv[1] = state; | |
7ac48069 | 647 | if ((status = mr_query(q_name, q_argc, q_argv, NULL, NULL)) |
5eaef520 | 648 | != MR_SUCCESS) |
649 | { | |
650 | if (status == MR_DEADLOCK) | |
651 | status = UREG_MISC_ERROR; | |
652 | else | |
653 | critical_alert(FAIL_INST, "%s returned from update_user_status.", | |
654 | error_message(status)); | |
655 | } | |
656 | if (status) | |
657 | com_err(whoami, status, " returned from set_final_status"); | |
658 | else | |
659 | com_err(whoami, 0, "Final status set"); | |
660 | return status; | |
bac67528 | 661 | } |
f46fccfa | 662 | |
bac67528 | 663 | |
5eaef520 | 664 | /* This routine is used to set the initial password for the new user. */ |
665 | int set_password(struct msg *message, char *retval) | |
47baf534 | 666 | { |
5eaef520 | 667 | int status = SUCCESS; /* Return status */ |
668 | char *passwd; /* User's password */ | |
669 | ||
670 | com_err(whoami, 0, "setting password %s %s", message->first, message->last); | |
671 | ||
672 | status = verify_user(message, retval); | |
673 | ||
674 | /* Don't set the password unless the registration status of the user | |
675 | is that he exists and has no password. */ | |
676 | if (status == SUCCESS) | |
677 | status = UREG_NO_LOGIN_YET; | |
678 | if ((message->request == UREG_SET_PASSWORD && | |
679 | status == UREG_NO_PASSWD_YET) || | |
680 | (message->request == UREG_GET_KRB && | |
681 | status == UREG_HALF_ENROLLED)) | |
3e9b5b7b | 682 | { |
5eaef520 | 683 | /* User is in proper state for this transaction. */ |
684 | ||
685 | passwd = message->leftover; | |
686 | ||
687 | /* Set password. */ | |
688 | if ((status = setpass_krb(message->db.login, passwd)) != SUCCESS) | |
689 | /* If failure, allow login name to be used in client error message */ | |
690 | strcpy(retval, message->db.login); | |
691 | else | |
692 | /* Otherwise, mark user as finished. */ | |
693 | status = set_final_status(message); | |
bac67528 | 694 | } |
40174425 | 695 | |
5eaef520 | 696 | if (status) |
697 | com_err(whoami, status, " returned from set_passwd"); | |
698 | else | |
699 | com_err(whoami, 0, "Password set"); | |
40174425 | 700 | |
5eaef520 | 701 | return status; |
bac67528 | 702 | } |
3f5f9b08 | 703 | |
704 | ||
7ac48069 | 705 | int getuserinfo(int argc, char **argv, void *qa) |
3f5f9b08 | 706 | { |
7ac48069 | 707 | char **qargv = qa; |
5eaef520 | 708 | int status = SUCCESS; |
709 | int i; | |
710 | ||
711 | if (argc != U_END) | |
712 | { | |
713 | critical_alert(FAIL_INST, | |
714 | "Wrong number of args returned from get_user_by_uid"); | |
715 | status = MR_ABORT; | |
3f5f9b08 | 716 | } |
5eaef520 | 717 | else |
718 | { | |
7ac48069 | 719 | qargv[U_NAME] = strdup(argv[U_NAME]); |
5eaef520 | 720 | for (i = 1; i < U_MODTIME; i++) |
7ac48069 | 721 | qargv[i + 1] = strdup(argv[i]); |
5eaef520 | 722 | qargv[U_MODTIME + 1] = NULL; |
723 | } | |
724 | return status; | |
3f5f9b08 | 725 | } |
726 | ||
727 | ||
5eaef520 | 728 | int set_identity(struct msg *message, char *retval) |
3f5f9b08 | 729 | { |
5eaef520 | 730 | char *q_argv[U_END]; /* Arguments to Moira query */ |
5eaef520 | 731 | int status = SUCCESS; /* General purpose error status */ |
5eaef520 | 732 | char *login; /* The login name the user wants */ |
44d12d58 | 733 | int i; /* A counter */ |
5eaef520 | 734 | |
735 | /* Log that we are about to reserve a user. */ | |
736 | com_err(whoami, 0, "setting identity %s %s", | |
737 | message->first, message->last); | |
738 | ||
739 | /* Check to make sure that we can verify this user. */ | |
740 | status = verify_user(message, retval); | |
741 | if (status == SUCCESS || status == UREG_NOT_ALLOWED) | |
3f5f9b08 | 742 | { |
5eaef520 | 743 | status = SUCCESS; |
744 | /* Get the requested login name from leftover packet information. */ | |
745 | login = message->leftover; | |
746 | ||
747 | /* Check the login name for validity. The login name is currently | |
748 | is allowed to contain lowercase letters in any position and | |
749 | and numbers and underscore characters in any position but the | |
750 | first. */ | |
751 | if ((strlen(login) < MIN_UNAME) || (strlen(login) > MAX_UNAME)) | |
752 | status = UREG_INVALID_UNAME; | |
753 | } | |
754 | if (status == SUCCESS) | |
755 | { | |
756 | if ((login[0] == '_') || isdigit(login[0])) | |
757 | status = UREG_INVALID_UNAME; | |
3f5f9b08 | 758 | } |
5eaef520 | 759 | if (status == SUCCESS) |
3f5f9b08 | 760 | { |
5eaef520 | 761 | for (i = 0; i < strlen(login); i++) |
762 | { | |
763 | if (!islower(login[i]) && !isdigit(login[i]) && | |
764 | (login[i] != '_')) | |
3f5f9b08 | 765 | { |
5eaef520 | 766 | status = UREG_INVALID_UNAME; |
767 | break; | |
3f5f9b08 | 768 | } |
5eaef520 | 769 | } |
3f5f9b08 | 770 | } |
5eaef520 | 771 | if (status == SUCCESS) |
3f5f9b08 | 772 | { |
5eaef520 | 773 | /* Now that we have a valid user with a valid login... */ |
774 | ||
775 | q_argv[0] = message->db.uid; | |
776 | status = mr_query("get_user_account_by_uid", 1, q_argv, | |
7ac48069 | 777 | getuserinfo, q_argv); |
5eaef520 | 778 | if (status != SUCCESS) |
779 | { | |
780 | com_err(whoami, status, " while getting user info"); | |
781 | return status; | |
3f5f9b08 | 782 | } |
5eaef520 | 783 | q_argv[U_NAME + 1] = login; |
784 | q_argv[U_STATE + 1] = "7"; | |
785 | q_argv[U_SIGNATURE + 1] = ""; | |
786 | status = mr_query("update_user_account", U_MODTIME + 1, q_argv, | |
7ac48069 | 787 | NULL, NULL); |
5eaef520 | 788 | switch (status) |
3f5f9b08 | 789 | { |
5eaef520 | 790 | case MR_SUCCESS: |
791 | status = SUCCESS; | |
792 | break; | |
793 | case MR_IN_USE: | |
794 | case MR_NOT_UNIQUE: | |
795 | status = UREG_LOGIN_USED; | |
796 | break; | |
797 | case MR_DEADLOCK: | |
798 | status = UREG_MISC_ERROR; | |
799 | break; | |
800 | default: | |
801 | critical_alert(FAIL_INST, "%s returned from update_user_account.", | |
802 | error_message(status)); | |
803 | status = UREG_MISC_ERROR; | |
804 | break; | |
3f5f9b08 | 805 | } |
806 | } | |
5eaef520 | 807 | if (status == SUCCESS) |
3f5f9b08 | 808 | { |
5eaef520 | 809 | /* Moira login was successfully created; try to reserve kerberos |
810 | principal. */ | |
811 | /* If this routine fails, store the login in the retval so | |
812 | that it can be used in the client-side error message. */ | |
813 | if ((status = reserve_krb(login)) != SUCCESS) | |
814 | strcpy(retval, login); | |
3f5f9b08 | 815 | } |
816 | ||
5eaef520 | 817 | if (status) |
818 | com_err(whoami, status, " returned from set_identity"); | |
819 | else | |
820 | com_err(whoami, 0, "Identity set"); | |
821 | ||
822 | return status; | |
3f5f9b08 | 823 | } |
824 | ||
825 | ||
5eaef520 | 826 | /* Find out if someone's secure instance password is set. |
74cb1181 | 827 | * Returns UREG_ALREADY_REGISTERED if set, SUCCESS (0) if not. |
828 | */ | |
829 | ||
5eaef520 | 830 | int get_secure(struct msg *message, char *retval) |
74cb1181 | 831 | { |
5eaef520 | 832 | int status; |
833 | char *argv[U_END]; | |
834 | ||
835 | com_err(whoami, 0, "checking status of secure password for %s", | |
836 | message->first); | |
837 | argv[0] = message->first; | |
7ac48069 | 838 | status = mr_query("get_user_account_by_login", 1, argv, getuserinfo, argv); |
5eaef520 | 839 | if (status != SUCCESS) |
840 | { | |
841 | com_err(whoami, status, " while getting user info"); | |
842 | return status; | |
74cb1181 | 843 | } |
5eaef520 | 844 | if (atoi(argv[U_SECURE + 1])) |
845 | return UREG_ALREADY_REGISTERED; | |
846 | return SUCCESS; | |
74cb1181 | 847 | } |
848 | ||
849 | ||
850 | /* Set someone's secure instance password. */ | |
851 | ||
5eaef520 | 852 | int set_secure(struct msg *message, char *retval) |
74cb1181 | 853 | { |
7ac48069 | 854 | int status; |
855 | char *argv[U_END], *bp, buf[512], *passwd, *id; | |
5eaef520 | 856 | KTEXT_ST creds; |
857 | AUTH_DAT auth; | |
858 | C_Block key; | |
859 | Key_schedule keys; | |
860 | Kadm_vals kv; | |
861 | u_long *lkey = (u_long *)key; | |
862 | struct timeval now; | |
863 | static int inited = 0; | |
864 | static char *host; | |
7ac48069 | 865 | struct utsname uts; |
5eaef520 | 866 | |
867 | if (!inited) | |
868 | { | |
869 | inited++; | |
7ac48069 | 870 | if (uname(&uts) < 0) |
5eaef520 | 871 | com_err(whoami, errno, "getting local hostname"); |
7ac48069 | 872 | host = strdup(krb_get_phost(uts.nodename)); |
74cb1181 | 873 | } |
874 | ||
5eaef520 | 875 | com_err(whoami, 0, "setting secure passwd for %s", message->first); |
876 | argv[0] = message->first; | |
7ac48069 | 877 | status = mr_query("get_user_account_by_login", 1, argv, getuserinfo, argv); |
5eaef520 | 878 | if (status != SUCCESS) |
879 | { | |
880 | com_err(whoami, status, " while getting user info"); | |
881 | return status; | |
74cb1181 | 882 | } |
5eaef520 | 883 | if (atoi(argv[U_SECURE + 1])) |
884 | { | |
885 | com_err(whoami, UREG_ALREADY_REGISTERED, "in set_secure()"); | |
886 | return UREG_ALREADY_REGISTERED; | |
74cb1181 | 887 | } |
888 | ||
5eaef520 | 889 | bp = message->encrypted; |
890 | /* round up to word boundary */ | |
891 | bp = (char *)((((u_long)bp + 3) >> 2) << 2); | |
892 | ||
893 | creds.length = ntohl(*((int *)bp)); | |
894 | bp += sizeof(int); | |
895 | memcpy(creds.dat, bp, creds.length); | |
896 | creds.mbz = 0; | |
897 | bp += creds.length; | |
898 | ||
899 | status = krb_rd_req(&creds, "changepw", host, cur_req_sender(), &auth, ""); | |
900 | if (status) | |
901 | { | |
902 | status += krb_err_base; | |
903 | com_err(whoami, status, " verifying credentials in set_secure()"); | |
904 | return status; | |
74cb1181 | 905 | } |
906 | ||
5eaef520 | 907 | message->leftover_len = ntohl(*((int *)(bp))); |
908 | bp += sizeof(int); | |
909 | message->leftover = bp; | |
910 | ||
911 | des_key_sched(auth.session, keys); | |
912 | des_pcbc_encrypt(message->leftover, buf, message->leftover_len, | |
913 | keys, auth.session, 0); | |
914 | ||
915 | id = buf; | |
916 | passwd = strchr(buf, ','); | |
917 | *passwd++ = 0; | |
918 | ||
919 | if (strcmp(id, argv[U_MITID + 1])) | |
920 | { | |
921 | char buf[32]; | |
922 | ||
923 | EncryptID(buf, id, argv[U_FIRST + 1], argv[U_LAST + 1]); | |
924 | if (strcmp(buf, argv[U_MITID + 1])) | |
925 | { | |
926 | status = UREG_USER_NOT_FOUND; | |
927 | com_err(whoami, status, "IDs mismatch: %s (%s), %s", id, buf, | |
928 | argv[U_MITID + 1]); | |
929 | return status; | |
9587d5ff | 930 | } |
74cb1181 | 931 | } |
932 | ||
5eaef520 | 933 | /* now do actual password setting stuff */ |
74cb1181 | 934 | |
5eaef520 | 935 | if ((status = ureg_kadm_init()) != SUCCESS) |
936 | { | |
937 | com_err(whoami, status, "initing kadm stuff"); | |
938 | return status; | |
74cb1181 | 939 | } |
940 | ||
5eaef520 | 941 | memset(&kv, 0, sizeof(kv)); |
942 | SET_FIELD(KADM_DESKEY, kv.fields); | |
943 | SET_FIELD(KADM_NAME, kv.fields); | |
944 | SET_FIELD(KADM_INST, kv.fields); | |
945 | des_string_to_key(passwd, key); | |
946 | kv.key_low = htonl(lkey[0]); | |
947 | kv.key_high = htonl(lkey[1]); | |
948 | strcpy(kv.name, message->first); | |
949 | strcpy(kv.instance, "extra"); | |
950 | ||
951 | if ((status = kadm_add(&kv)) != KADM_SUCCESS) | |
952 | { | |
953 | com_err(whoami, status, " while creating kerberos principal"); | |
954 | return status; | |
74cb1181 | 955 | } |
956 | ||
5eaef520 | 957 | argv[0] = message->first; |
958 | argv[1] = buf; | |
959 | gettimeofday(&now, NULL); | |
7ac48069 | 960 | sprintf(buf, "%ld", now.tv_sec); |
961 | status = mr_query("update_user_security_status", 2, argv, getuserinfo, argv); | |
5eaef520 | 962 | if (status != SUCCESS) |
963 | { | |
964 | com_err(whoami, status, " while updating user status"); | |
965 | return status; | |
74cb1181 | 966 | } |
5eaef520 | 967 | return SUCCESS; |
74cb1181 | 968 | } |