]>
Commit | Line | Data |
---|---|---|
47baf534 | 1 | /* |
3e9b5b7b | 2 | * $Source$ |
3 | * $Author$ | |
4 | * $Header$ | |
47baf534 | 5 | * |
0a5ff702 | 6 | * Copyright (C) 1987, 1988 by the Massachusetts Institute of Technology |
7 | * For copying and distribution information, please see the file | |
8 | * <mit-copyright.h>. | |
47baf534 | 9 | * |
40174425 | 10 | * Server for user registration with Moira and Kerberos. |
47baf534 | 11 | * |
803d15cb | 12 | * This program is a client of the Kerberos admin_server and a |
13 | * server for the userreg program. It is not a client of the | |
2ce085d2 | 14 | * Moira server as it is linked with libmoiraglue which bypasses |
803d15cb | 15 | * the network protocol. |
47baf534 | 16 | */ |
17 | ||
18 | #ifndef lint | |
19 | static char *rcsid_reg_svr_c = "$Header$"; | |
20 | #endif lint | |
21 | ||
0a5ff702 | 22 | #include <mit-copyright.h> |
40174425 | 23 | #include <stdio.h> |
5eaef520 | 24 | #include <stdlib.h> |
16e5277e | 25 | #include <string.h> |
40174425 | 26 | #include <ctype.h> |
74cb1181 | 27 | #include <sys/time.h> |
40174425 | 28 | #include <sys/types.h> |
29 | #include <sys/file.h> | |
30 | #include <krb.h> | |
31 | #include <des.h> | |
32 | #include <kadm.h> | |
33 | #include <kadm_err.h> | |
34 | #include <krb_err.h> | |
35 | #include <errno.h> | |
98a7b0ee | 36 | #include <com_err.h> |
2ce085d2 | 37 | #include "moira.h" |
38 | #include "moira_site.h" | |
a640951a | 39 | #include "reg_svr.h" |
47baf534 | 40 | |
f46fccfa | 41 | extern char admin_errmsg[]; |
47baf534 | 42 | |
3f5f9b08 | 43 | void reg_com_err_hook(); |
44 | ||
5eaef520 | 45 | int main(int argc, char *argv[]) |
47baf534 | 46 | { |
5eaef520 | 47 | struct msg message; /* Storage for parsed packet */ |
48 | int status = SUCCESS; /* Error status */ | |
49 | char retval[BUFSIZ]; /* Buffer to hold return message for client */ | |
50 | ||
51 | void req_initialize(); /* Initialize request layer */ | |
52 | void get_request(); /* Get a request */ | |
53 | void report(); /* Respond to a request */ | |
54 | ||
55 | /* Initialize */ | |
56 | whoami = argv[0]; | |
57 | ||
58 | /* Error messages sent one line at a time */ | |
59 | setvbuf(stderr, NULL, _IOLBF, BUFSIZ); | |
60 | setvbuf(stdout, NULL, _IOLBF, BUFSIZ); | |
61 | set_com_err_hook(reg_com_err_hook); | |
62 | ||
63 | /* Initialize com_err error tables */ | |
64 | init_ureg_err_tbl(); | |
65 | init_krb_err_tbl(); | |
66 | init_kadm_err_tbl(); | |
67 | initialize_gdss_error_table(); | |
68 | ||
69 | /* Set the name of our kerberos ticket file */ | |
70 | krb_set_tkt_string("/tmp/tkt_ureg"); | |
71 | ||
72 | /* Connect to the Moira server */ | |
73 | if ((status = mr_connect(MOIRA_SERVER)) != MR_SUCCESS) | |
3e9b5b7b | 74 | { |
5eaef520 | 75 | com_err(whoami, status, " on mr_connect"); |
76 | exit(1); | |
78eff417 | 77 | } |
5eaef520 | 78 | |
79 | /* Authorize, telling the server who you are */ | |
80 | if ((status = mr_auth(whoami)) != MR_SUCCESS) | |
3e9b5b7b | 81 | { |
5eaef520 | 82 | com_err(whoami, status, " on mr_auth"); |
83 | exit(1); | |
78eff417 | 84 | } |
5eaef520 | 85 | |
86 | journal = fopen(REGJOURNAL, "a"); | |
87 | if (!journal) | |
88 | { | |
89 | com_err(whoami, errno, " while opening journal file"); | |
90 | exit(1); | |
0349fd4d | 91 | } |
5eaef520 | 92 | |
93 | /* Allow request layer to initialize */ | |
94 | req_initialize(); | |
95 | ||
96 | /* Sit around waiting for requests from the client. */ | |
97 | for (;;) | |
3e9b5b7b | 98 | { |
5eaef520 | 99 | get_request(&message); |
100 | ||
101 | switch (message.request) | |
3e9b5b7b | 102 | { |
5eaef520 | 103 | case UREG_VERIFY_USER: |
104 | status = verify_user(&message, retval); | |
105 | break; | |
106 | case UREG_RESERVE_LOGIN: | |
107 | status = reserve_user(&message, retval); | |
108 | break; | |
109 | case UREG_SET_PASSWORD: | |
110 | case UREG_GET_KRB: | |
111 | status = set_password(&message, retval); | |
112 | break; | |
113 | case UREG_SET_IDENT: | |
114 | status = set_identity(&message, retval); | |
115 | break; | |
116 | case UREG_GET_SECURE: | |
117 | status = get_secure(&message, retval); | |
118 | break; | |
119 | case UREG_SET_SECURE: | |
120 | status = set_secure(&message, retval); | |
121 | break; | |
122 | default: | |
123 | status = UREG_UNKNOWN_REQUEST; | |
124 | critical_alert(FAIL_INST, "Unknown request %d from userreg.", | |
125 | message.request); | |
126 | break; | |
47baf534 | 127 | } |
5eaef520 | 128 | |
129 | /* Report what happened to client */ | |
130 | report(status, retval); | |
47baf534 | 131 | } |
132 | } | |
133 | ||
3e9b5b7b | 134 | /* This routine makes sure that the ID from the database matches |
135 | the ID sent accross in the packet. The information in the packet | |
136 | was created in the following way: | |
137 | ||
877a2ce9 | 138 | The database used to contain encrypted IDs. Now we don't encrypt |
139 | them in the database, although there are still some encrypted IDs | |
140 | there. | |
141 | ||
803d15cb | 142 | The plain text ID number was encrypted via EncryptID() resulting |
40174425 | 143 | in the form that would appear in the Moira database. This is |
5eaef520 | 144 | concatenated to the plain text ID so that the ID string contains plain |
29bc4461 | 145 | text ID followed by a null followed by the encrypted ID. Other |
146 | information such as the username or password is appended. The whole | |
147 | thing is then DES encrypted using the encrypted ID as the source of | |
148 | the key. | |
3e9b5b7b | 149 | |
877a2ce9 | 150 | This routine tries each ID in the database that belongs |
5eaef520 | 151 | to someone with this user's first and last name and tries to |
152 | decrypt the packet with this information. If it succeeds, it returns | |
29bc4461 | 153 | zero and initializes all the fields of the formatted packet structure |
154 | that depend on the encrypted information. */ | |
5eaef520 | 155 | |
156 | int parse_encrypted(struct msg *message, struct db_data *data) | |
47baf534 | 157 | { |
5eaef520 | 158 | des_cblock key; /* The key for DES en/decryption */ |
159 | des_key_schedule sched; /* En/decryption schedule */ | |
160 | static char decrypt[BUFSIZ]; /* Buffer to hold decrypted information */ | |
161 | long decrypt_len; /* Length of decypted ID information */ | |
162 | char recrypt[14]; /* Buffer to hold re-encrypted information */ | |
163 | static char hashid[14]; /* Buffer to hold one-way encrypted ID */ | |
164 | char idnumber[BUFSIZ]; /* Buffer to hold plain-text ID */ | |
165 | char *temp; /* A temporary string pointer */ | |
166 | int len; /* Keeps track of length left in packet */ | |
167 | int status = SUCCESS; /* Error status */ | |
168 | ||
169 | /* Make the decrypted information length the same as the encrypted | |
170 | information length. Both are integral multples of eight bytes | |
171 | because of the DES encryption routines. */ | |
172 | decrypt_len = message->encrypted_len; | |
173 | ||
174 | /* Get key from the possibly one-way encrypted ID in the Moira database */ | |
175 | if (data->mit_id[0] >= '0' && data->mit_id[0] <= '9') | |
bac67528 | 176 | { |
5eaef520 | 177 | char buf[32]; |
178 | ||
179 | EncryptID(buf, data->mit_id, message->first, message->last); | |
180 | des_string_to_key(buf, key); | |
181 | } | |
182 | else | |
183 | des_string_to_key(data->mit_id, key); | |
184 | ||
185 | /* Get schedule from key */ | |
186 | des_key_sched(key, sched); | |
187 | /* Decrypt information from packet using this key. Since decrypt_len | |
188 | is an integral multiple of eight bytes, it will probably be null- | |
189 | padded. */ | |
190 | des_pcbc_encrypt(message->encrypted, decrypt, decrypt_len, | |
191 | sched, key, DES_DECRYPT); | |
192 | ||
193 | /* Extract the plain text and encrypted ID fields from the decrypted | |
194 | packet information. */ | |
195 | /* Since the decrypted information starts with the plain-text ID | |
196 | followed by a null, if the decryption worked, this will only | |
197 | copy the plain text part of the decrypted information. It is | |
198 | important that strncpy be used because if we are not using the | |
199 | correct key, there is no guarantee that a null will occur | |
200 | anywhere in the string. */ | |
201 | strncpy(idnumber, decrypt, decrypt_len); | |
202 | /* Check that the idnumber of a mismatched decryption doesn't overflow | |
203 | * the buffer. */ | |
204 | if (strlen(idnumber) != 9) | |
205 | return FAILURE; | |
206 | ||
207 | /* Point temp to the end of the plain text ID number. */ | |
208 | temp = decrypt + strlen(idnumber) + 1; | |
209 | /* Find out how much more packet there is. */ | |
210 | len = message->encrypted_len - (temp - decrypt); | |
211 | /* Copy the next CRYPT_LEN bytes of the decrypted information into | |
212 | hashid if there are CRYPT_LEN more bytes to copy. There will be | |
213 | if we have the right key. */ | |
214 | strncpy(hashid, temp, min(len, CRYPT_LEN)); | |
215 | /* Point temp to the end of the encrypted ID field */ | |
216 | temp += strlen(hashid) + 1; | |
217 | /* Find out how much more room there is. */ | |
218 | len = message->encrypted_len - (temp - decrypt); | |
219 | ||
220 | /* Now compare encrypted ID and clear text ID for a match. */ | |
221 | if (strcmp(hashid, data->mit_id) && | |
222 | strcmp(idnumber, data->mit_id)) | |
223 | status = FAILURE; | |
224 | ||
225 | if (status == SUCCESS) | |
226 | { | |
227 | /* We made it. Now we can finish initializing message. */ | |
228 | /* Point leftover to whatever is left over! */ | |
229 | message->leftover = temp; | |
230 | message->leftover_len = len; | |
231 | /* Since we know we have the right user, fill in the information | |
232 | from the Moira database. */ | |
233 | message->db.reg_status = data->reg_status; | |
234 | strncpy(message->db.uid, data->uid, sizeof(message->db.uid)); | |
235 | strncpy(message->db.mit_id, data->mit_id, sizeof(message->db.mit_id)); | |
236 | strncpy(message->db.login, data->login, sizeof(message->db.login)); | |
bac67528 | 237 | } |
47baf534 | 238 | |
47baf534 | 239 | return status; |
240 | } | |
241 | ||
2ce085d2 | 242 | /* This function is called by mr_query after each tuple found. It is |
29bc4461 | 243 | used by find_user to cache information about each user found. */ |
5eaef520 | 244 | int db_callproc(int argc, char **argv, struct save_queue *queue) |
47baf534 | 245 | { |
5eaef520 | 246 | struct db_data *data; /* Structure to store the information in */ |
247 | int status = SUCCESS; /* Error status */ | |
248 | ||
249 | if (argc != U_END) | |
3e9b5b7b | 250 | { |
5eaef520 | 251 | critical_alert(FAIL_INST, "Wrong number of arguments returned " |
252 | "from get_user_account_by_name."); | |
253 | status = MR_ABORT; | |
f46fccfa | 254 | } |
5eaef520 | 255 | else |
3e9b5b7b | 256 | { |
5eaef520 | 257 | /* extract the needed information from the results of the Moira query */ |
258 | data = malloc(sizeof(struct db_data)); | |
259 | data->reg_status = atoi(argv[U_STATE]); | |
260 | strncpy(data->login, argv[U_NAME], sizeof(data->login)); | |
261 | strncpy(data->mit_id, argv[U_MITID], sizeof(data->mit_id)); | |
262 | strncpy(data->uid, argv[U_UID], sizeof(data->uid)); | |
263 | sq_save_data(queue, data); | |
47baf534 | 264 | } |
bac67528 | 265 | |
5eaef520 | 266 | return status; |
bac67528 | 267 | } |
5eaef520 | 268 | |
bac67528 | 269 | /* This routine verifies that a user is allowed to register by finding |
40174425 | 270 | him/her in the Moira database. It returns the status of the Moira |
bac67528 | 271 | query that it calls. */ |
5eaef520 | 272 | int find_user(struct msg *message) |
bac67528 | 273 | { |
803d15cb | 274 | #define GUBN_ARGS 2 /* Arguements needed by get_user_by_name */ |
5eaef520 | 275 | char *q_name; /* Name of query */ |
276 | int q_argc; /* Number of arguments for query */ | |
277 | char *q_argv[GUBN_ARGS]; /* Arguments to query */ | |
278 | int status = SUCCESS; /* Query return status */ | |
279 | ||
280 | struct save_queue *queue; /* Queue to hold Moira data */ | |
281 | struct db_data *data; /* Structure for data for one tuple */ | |
282 | short verified = FALSE; /* Have we verified the user? */ | |
283 | ||
284 | /* Zero the mit_id field in the formatted packet structure. This | |
285 | being zeroed means that no user was found. */ | |
286 | memset(message->db.mit_id, 0, sizeof(message->db.mit_id)); | |
287 | ||
288 | if (status == SUCCESS) | |
3e9b5b7b | 289 | { |
5eaef520 | 290 | /* Get ready to make an Moira query */ |
291 | q_name = "get_user_account_by_name"; | |
292 | q_argc = GUBN_ARGS; /* #defined in this routine */ | |
293 | q_argv[0] = message->first; | |
294 | q_argv[1] = message->last; | |
295 | ||
296 | /* Create queue to hold information */ | |
297 | queue = sq_create(); | |
298 | ||
299 | /* Do it */ | |
300 | status = mr_query(q_name, q_argc, q_argv, db_callproc, (char *)queue); | |
301 | ||
302 | if (status == MR_SUCCESS) | |
bac67528 | 303 | { |
5eaef520 | 304 | /* Traverse the list, freeing data as we go. If sq_get_data() |
305 | returns zero if there is no more data on the queue. */ | |
306 | while (sq_get_data(queue, &data)) | |
bac67528 | 307 | { |
5eaef520 | 308 | if (!verified) |
309 | /* parse_encrypted returns zero on success */ | |
310 | verified = (parse_encrypted(message, data) == SUCCESS); | |
311 | free(data); | |
bac67528 | 312 | } |
313 | } | |
29bc4461 | 314 | |
5eaef520 | 315 | /* Destroy the queue */ |
316 | sq_destroy(queue); | |
47baf534 | 317 | } |
bac67528 | 318 | |
5eaef520 | 319 | return status; |
bac67528 | 320 | } |
321 | ||
5eaef520 | 322 | /* This routine determines whether a user is in the databse and returns |
323 | his state so that other routines can figure out whether he is the | |
324 | correct state for various transactions. */ | |
325 | int verify_user(struct msg *message, char *retval) | |
47baf534 | 326 | { |
5eaef520 | 327 | int status = SUCCESS; /* Return status */ |
bac67528 | 328 | |
5eaef520 | 329 | /* Log that we are about to veryify user */ |
330 | com_err(whoami, 0, "verifying user %s %s", message->first, message->last); | |
bac67528 | 331 | |
5eaef520 | 332 | /* Figure out what user (if any) can be found based on the |
333 | encrypted information in the packet. (See the comment on | |
334 | parse_encrypted().) */ | |
bac67528 | 335 | |
5eaef520 | 336 | status = find_user(message); |
bac67528 | 337 | |
5eaef520 | 338 | /* If Moira coudn't find the user */ |
339 | if (status == MR_NO_MATCH) | |
340 | status = UREG_USER_NOT_FOUND; | |
341 | else if (status == MR_SUCCESS) | |
3e9b5b7b | 342 | { |
5eaef520 | 343 | /* If the information sent over in the packet did not point to a |
344 | valid user, the mit_id field in the formatted packet structure | |
345 | will be empty. */ | |
346 | if (message->db.mit_id[0] == '\0') | |
347 | status = UREG_USER_NOT_FOUND; | |
348 | /* If the user was found but the registration has already started, | |
349 | use this as the status */ | |
350 | else | |
bac67528 | 351 | { |
5eaef520 | 352 | switch (message->db.reg_status) |
bac67528 | 353 | { |
5eaef520 | 354 | case US_NO_LOGIN_YET: |
355 | status = SUCCESS; | |
356 | break; | |
357 | case US_REGISTERED: | |
358 | status = UREG_ALREADY_REGISTERED; | |
359 | break; | |
360 | case US_NO_PASSWD: | |
361 | status = UREG_NO_PASSWD_YET; | |
362 | break; | |
363 | case US_DELETED: | |
364 | status = UREG_DELETED; | |
365 | break; | |
366 | case US_NOT_ALLOWED: | |
367 | status = UREG_NOT_ALLOWED; | |
368 | break; | |
369 | case US_ENROLLED: | |
370 | status = UREG_ENROLLED; | |
371 | break; | |
372 | case US_ENROLL_NOT_ALLOWED: | |
373 | status = UREG_ENROLL_NOT_ALLOWED; | |
374 | break; | |
d8ffd27c | 375 | case US_HALF_ENROLLED: |
5eaef520 | 376 | status = UREG_HALF_ENROLLED; |
377 | break; | |
378 | default: | |
379 | status = UREG_MISC_ERROR; | |
380 | critical_alert(FAIL_INST, "Bad user state %d for login %s.", | |
381 | message->db.reg_status, message->db.login); | |
382 | break; | |
bac67528 | 383 | } |
5eaef520 | 384 | /* Set retval to the login name so that the client can use |
385 | it in the error message it will give the user. */ | |
386 | strcpy(retval, message->db.login); | |
bac67528 | 387 | } |
47baf534 | 388 | } |
bac67528 | 389 | |
5eaef520 | 390 | if (status) |
391 | com_err(whoami, status, " returned from verify_user"); | |
392 | else | |
393 | com_err(whoami, 0, "User verified"); | |
394 | ||
395 | return status; | |
47baf534 | 396 | } |
5eaef520 | 397 | |
398 | int ureg_kadm_init(void) | |
47baf534 | 399 | { |
5eaef520 | 400 | unsigned int status = SUCCESS; /* Return status */ |
401 | static char krbrealm[REALM_SZ]; /* kerberos realm name */ | |
402 | static char hostbuf[BUFSIZ], *host; /* local hostname in principal fmt */ | |
403 | static int inited = 0; | |
404 | char *p; | |
405 | ||
406 | if (!inited) | |
407 | { | |
408 | inited++; | |
409 | memset(krbrealm, 0, sizeof(krbrealm)); | |
410 | if (status = krb_get_lrealm(krbrealm, 1)) | |
411 | { | |
412 | status += krb_err_base; | |
413 | com_err(whoami, status, " fetching kerberos realm"); | |
414 | exit(1); | |
40174425 | 415 | } |
5eaef520 | 416 | if (gethostname(hostbuf, sizeof(hostbuf)) < 0) |
417 | com_err(whoami, errno, "getting local hostname"); | |
418 | host = canonicalize_hostname(strsave(hostbuf)); | |
419 | for (p = host; *p && *p != '.'; p++) | |
420 | { | |
6b407d0f | 421 | if (isupper(*p)) |
422 | *p = tolower(*p); | |
5eaef520 | 423 | } |
424 | *p = 0; | |
40174425 | 425 | } |
bac67528 | 426 | |
5eaef520 | 427 | /* Get keys for interacting with Kerberos admin server. */ |
428 | /* principal, instance, realm, service, service instance, life, file */ | |
429 | if (status = krb_get_svc_in_tkt(MOIRA_SNAME, host, krbrealm, PWSERV_NAME, | |
430 | KADM_SINST, 1, KEYFILE)) | |
431 | status += krb_err_base; | |
432 | ||
433 | if (status != SUCCESS) | |
434 | com_err(whoami, status, " while get admin tickets"); | |
435 | else | |
436 | { | |
437 | if ((status = kadm_init_link(PWSERV_NAME, KADM_SINST, krbrealm)) != | |
438 | KADM_SUCCESS) | |
439 | com_err(whoami, status, " while initializing kadmin connection"); | |
40174425 | 440 | } |
441 | ||
5eaef520 | 442 | return status; |
47baf534 | 443 | } |
444 | ||
5eaef520 | 445 | /* This routine is a null callback that should be used for queries that |
446 | do not return tuples. If it ever gets called, something is wrong. */ | |
447 | int null_callproc(int argc, char *argv[], char *message) | |
47baf534 | 448 | { |
5eaef520 | 449 | critical_alert(FAIL_INST, "Something returned from an update query."); |
450 | return FAILURE; | |
47baf534 | 451 | } |
452 | ||
40174425 | 453 | /* |
5eaef520 | 454 | * This routine reserves a principal in kerberos by setting up a |
40174425 | 455 | * principal with a random initial key. |
456 | */ | |
5eaef520 | 457 | int reserve_krb(char *login) |
47baf534 | 458 | { |
5eaef520 | 459 | int status = SUCCESS; |
460 | Kadm_vals new; | |
461 | des_cblock key; | |
462 | u_long *lkey = (u_long *)key; | |
463 | ||
464 | if ((status = ureg_kadm_init()) == SUCCESS) | |
465 | { | |
466 | memset(&new, 0, sizeof(new)); | |
467 | SET_FIELD(KADM_DESKEY, new.fields); | |
468 | SET_FIELD(KADM_NAME, new.fields); | |
469 | ||
470 | des_random_key(key); | |
471 | new.key_low = htonl(lkey[0]); | |
472 | new.key_high = htonl(lkey[1]); | |
473 | strcpy(new.name, login); | |
474 | ||
475 | com_err(whoami, 0, "Creating kerberos principal for %s", login); | |
476 | status = kadm_add(&new); | |
477 | if (status != KADM_SUCCESS) | |
478 | com_err(whoami, status, " while reserving principal"); | |
479 | ||
480 | memset(&new, 0, sizeof(new)); | |
40174425 | 481 | } |
482 | ||
5eaef520 | 483 | dest_tkt(); |
40174425 | 484 | |
5eaef520 | 485 | return status; |
40174425 | 486 | } |
487 | ||
488 | /* | |
5eaef520 | 489 | * This routine reserves a principal in kerberos by setting up a |
40174425 | 490 | * principal with a random initial key. |
491 | */ | |
5eaef520 | 492 | int setpass_krb(char *login, char *password) |
40174425 | 493 | { |
5eaef520 | 494 | int status = SUCCESS; |
495 | Kadm_vals new; | |
496 | des_cblock key; | |
497 | u_long *lkey = (u_long *)key; | |
498 | ||
499 | if ((status = ureg_kadm_init()) == SUCCESS) | |
500 | { | |
501 | memset(&new, 0, sizeof(new)); | |
502 | SET_FIELD(KADM_DESKEY, new.fields); | |
503 | SET_FIELD(KADM_NAME, new.fields); | |
504 | ||
505 | des_string_to_key(password, key); | |
506 | new.key_low = htonl(lkey[0]); | |
507 | new.key_high = htonl(lkey[1]); | |
508 | strcpy(new.name, login); | |
509 | ||
510 | com_err(whoami, 0, "Setting password for %s", login); | |
511 | /* First arguement is not used if user has modify privileges */ | |
512 | if ((status = kadm_mod(&new, &new)) != KADM_SUCCESS) | |
513 | { | |
514 | if (status == KADM_NOENTRY) | |
515 | { | |
516 | com_err(whoami, 0, "kerberos principal doesn't exist; creating"); | |
517 | if ((status = kadm_add(&new)) != KADM_SUCCESS) | |
518 | com_err(whoami, status, " while creating kerberos principal"); | |
40174425 | 519 | } |
5eaef520 | 520 | else |
521 | com_err(whoami, status, " while setting password"); | |
47baf534 | 522 | } |
47baf534 | 523 | } |
5eaef520 | 524 | |
525 | dest_tkt(); | |
526 | return status; | |
47baf534 | 527 | } |
3e9b5b7b | 528 | |
5eaef520 | 529 | int reserve_user(struct msg *message, char *retval) |
47baf534 | 530 | { |
5eaef520 | 531 | int q_argc; /* Number of arguments to query */ |
532 | char *q_argv[3]; /* Arguments to Moira query */ | |
533 | char *q_name; /* Name of Moira query */ | |
534 | int status = SUCCESS; /* General purpose error status */ | |
535 | char fstype_buf[7]; /* Buffer to hold fs_type, a 16 bit number */ | |
536 | char *login; /* The login name the user wants */ | |
44d12d58 | 537 | int i; /* A counter */ |
5eaef520 | 538 | |
539 | /* Log that we are about to reserve a user. */ | |
540 | com_err(whoami, 0, "reserving user %s %s", message->first, message->last); | |
541 | ||
542 | /* Check to make sure that we can verify this user. */ | |
543 | if ((status = verify_user(message, retval)) == SUCCESS) | |
3e9b5b7b | 544 | { |
5eaef520 | 545 | /* Get the requested login name from leftover packet information. */ |
546 | login = message->leftover; | |
547 | ||
548 | /* Check the login name for validity. The login name is currently | |
549 | is allowed to contain lowercase letters in any position and | |
550 | and numbers and underscore characters in any position but the | |
551 | first. */ | |
552 | if ((strlen(login) < MIN_UNAME) || (strlen(login) > MAX_UNAME)) | |
553 | status = UREG_INVALID_UNAME; | |
47baf534 | 554 | } |
5eaef520 | 555 | if (status == SUCCESS) |
556 | if ((login[0] == '_') || isdigit(login[0])) | |
557 | status = UREG_INVALID_UNAME; | |
558 | ||
559 | if (status == SUCCESS) | |
3e9b5b7b | 560 | { |
5eaef520 | 561 | for (i = 0; i < strlen(login); i++) |
562 | { | |
563 | if (!islower(login[i]) && !isdigit(login[i]) && | |
564 | (login[i] != '_')) | |
803d15cb | 565 | { |
5eaef520 | 566 | status = UREG_INVALID_UNAME; |
567 | break; | |
803d15cb | 568 | } |
5eaef520 | 569 | } |
47baf534 | 570 | } |
5eaef520 | 571 | if (status == SUCCESS) |
3e9b5b7b | 572 | { |
5eaef520 | 573 | /* Now that we have a valid user with a valid login... */ |
574 | ||
575 | /* First, try to reserve the user in Moira. */ | |
576 | sprintf(fstype_buf, "%d", MR_FS_STUDENT); | |
577 | q_name = "register_user"; | |
578 | q_argv[0] = message->db.uid; | |
579 | q_argv[1] = login; | |
580 | q_argv[2] = fstype_buf; | |
581 | q_argc = 3; | |
582 | status = mr_query(q_name, q_argc, q_argv, null_callproc, NULL); | |
583 | switch (status) | |
bac67528 | 584 | { |
5eaef520 | 585 | case MR_SUCCESS: |
586 | status = SUCCESS; | |
587 | break; | |
588 | case MR_IN_USE: | |
589 | status = UREG_LOGIN_USED; | |
590 | break; | |
591 | case MR_DEADLOCK: | |
592 | status = UREG_MISC_ERROR; | |
593 | break; | |
594 | default: | |
595 | critical_alert(FAIL_INST, "%s returned from register_user.", | |
596 | error_message(status)); | |
597 | status = UREG_MISC_ERROR; | |
598 | break; | |
bac67528 | 599 | } |
47baf534 | 600 | } |
40174425 | 601 | |
5eaef520 | 602 | if (status == SUCCESS) |
3e9b5b7b | 603 | { |
5eaef520 | 604 | /* |
605 | * Moira login was successfully created; try to reserve kerberos | |
606 | * principal. | |
607 | * | |
608 | * If this routine fails, store the login in the retval so | |
609 | * that it can be used in the client-side error message. | |
610 | */ | |
611 | if ((status = reserve_krb(login)) != SUCCESS) | |
612 | strcpy(retval, login); | |
613 | } | |
614 | ||
615 | if (status) | |
616 | com_err(whoami, status, " returned from reserve_user"); | |
617 | else | |
618 | com_err(whoami, 0, "User reserved"); | |
619 | ||
620 | return status; | |
bac67528 | 621 | } |
47baf534 | 622 | |
5eaef520 | 623 | /* This routine updates a user's registration status to fully |
624 | registered. */ | |
625 | int set_final_status(struct msg *message) | |
47baf534 | 626 | { |
5eaef520 | 627 | char *login; |
628 | char *q_name; /* Name of Moira query */ | |
629 | int q_argc; /* Number of arguments for Moira query */ | |
630 | char *q_argv[2]; /* Arguments to get user by uid */ | |
631 | char state[7]; /* Can hold a 16 bit integer */ | |
632 | int status; /* Error status */ | |
633 | ||
634 | if (message->request == UREG_SET_PASSWORD) | |
635 | sprintf(state, "%d", US_REGISTERED); | |
636 | else if (message->db.reg_status == US_NO_LOGIN_YET) | |
637 | sprintf(state, "%d", US_ENROLLED); | |
638 | else | |
639 | sprintf(state, "%d", US_ENROLL_NOT_ALLOWED); | |
640 | ||
641 | login = message->db.login; | |
642 | com_err(whoami, 0, "Setting final status for %s to %s", login, state); | |
643 | ||
644 | q_name = "update_user_status"; | |
645 | q_argc = 2; | |
646 | q_argv[0] = login; | |
647 | q_argv[1] = state; | |
648 | if ((status = mr_query(q_name, q_argc, q_argv, null_callproc, NULL)) | |
649 | != MR_SUCCESS) | |
650 | { | |
651 | if (status == MR_DEADLOCK) | |
652 | status = UREG_MISC_ERROR; | |
653 | else | |
654 | critical_alert(FAIL_INST, "%s returned from update_user_status.", | |
655 | error_message(status)); | |
656 | } | |
657 | if (status) | |
658 | com_err(whoami, status, " returned from set_final_status"); | |
659 | else | |
660 | com_err(whoami, 0, "Final status set"); | |
661 | return status; | |
bac67528 | 662 | } |
f46fccfa | 663 | |
bac67528 | 664 | |
5eaef520 | 665 | /* This routine is used to set the initial password for the new user. */ |
666 | int set_password(struct msg *message, char *retval) | |
47baf534 | 667 | { |
5eaef520 | 668 | int status = SUCCESS; /* Return status */ |
669 | char *passwd; /* User's password */ | |
670 | ||
671 | com_err(whoami, 0, "setting password %s %s", message->first, message->last); | |
672 | ||
673 | status = verify_user(message, retval); | |
674 | ||
675 | /* Don't set the password unless the registration status of the user | |
676 | is that he exists and has no password. */ | |
677 | if (status == SUCCESS) | |
678 | status = UREG_NO_LOGIN_YET; | |
679 | if ((message->request == UREG_SET_PASSWORD && | |
680 | status == UREG_NO_PASSWD_YET) || | |
681 | (message->request == UREG_GET_KRB && | |
682 | status == UREG_HALF_ENROLLED)) | |
3e9b5b7b | 683 | { |
5eaef520 | 684 | /* User is in proper state for this transaction. */ |
685 | ||
686 | passwd = message->leftover; | |
687 | ||
688 | /* Set password. */ | |
689 | if ((status = setpass_krb(message->db.login, passwd)) != SUCCESS) | |
690 | /* If failure, allow login name to be used in client error message */ | |
691 | strcpy(retval, message->db.login); | |
692 | else | |
693 | /* Otherwise, mark user as finished. */ | |
694 | status = set_final_status(message); | |
bac67528 | 695 | } |
40174425 | 696 | |
5eaef520 | 697 | if (status) |
698 | com_err(whoami, status, " returned from set_passwd"); | |
699 | else | |
700 | com_err(whoami, 0, "Password set"); | |
40174425 | 701 | |
5eaef520 | 702 | return status; |
bac67528 | 703 | } |
3f5f9b08 | 704 | |
705 | ||
5eaef520 | 706 | int getuserinfo(int argc, char **argv, char **qargv) |
3f5f9b08 | 707 | { |
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 | { | |
719 | qargv[U_NAME] = strsave(argv[U_NAME]); | |
720 | for (i = 1; i < U_MODTIME; i++) | |
721 | qargv[i + 1] = strsave(argv[i]); | |
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 | int q_argc; /* Number of arguments to query */ |
731 | char *q_argv[U_END]; /* Arguments to Moira query */ | |
732 | char *q_name; /* Name of Moira query */ | |
733 | int status = SUCCESS; /* General purpose error status */ | |
734 | char fstype_buf[7]; /* Buffer to hold fs_type, a 16 bit number */ | |
735 | char *login; /* The login name the user wants */ | |
44d12d58 | 736 | int i; /* A counter */ |
5eaef520 | 737 | |
738 | /* Log that we are about to reserve a user. */ | |
739 | com_err(whoami, 0, "setting identity %s %s", | |
740 | message->first, message->last); | |
741 | ||
742 | /* Check to make sure that we can verify this user. */ | |
743 | status = verify_user(message, retval); | |
744 | if (status == SUCCESS || status == UREG_NOT_ALLOWED) | |
3f5f9b08 | 745 | { |
5eaef520 | 746 | status = SUCCESS; |
747 | /* Get the requested login name from leftover packet information. */ | |
748 | login = message->leftover; | |
749 | ||
750 | /* Check the login name for validity. The login name is currently | |
751 | is allowed to contain lowercase letters in any position and | |
752 | and numbers and underscore characters in any position but the | |
753 | first. */ | |
754 | if ((strlen(login) < MIN_UNAME) || (strlen(login) > MAX_UNAME)) | |
755 | status = UREG_INVALID_UNAME; | |
756 | } | |
757 | if (status == SUCCESS) | |
758 | { | |
759 | if ((login[0] == '_') || isdigit(login[0])) | |
760 | status = UREG_INVALID_UNAME; | |
3f5f9b08 | 761 | } |
5eaef520 | 762 | if (status == SUCCESS) |
3f5f9b08 | 763 | { |
5eaef520 | 764 | for (i = 0; i < strlen(login); i++) |
765 | { | |
766 | if (!islower(login[i]) && !isdigit(login[i]) && | |
767 | (login[i] != '_')) | |
3f5f9b08 | 768 | { |
5eaef520 | 769 | status = UREG_INVALID_UNAME; |
770 | break; | |
3f5f9b08 | 771 | } |
5eaef520 | 772 | } |
3f5f9b08 | 773 | } |
5eaef520 | 774 | if (status == SUCCESS) |
3f5f9b08 | 775 | { |
5eaef520 | 776 | /* Now that we have a valid user with a valid login... */ |
777 | ||
778 | q_argv[0] = message->db.uid; | |
779 | status = mr_query("get_user_account_by_uid", 1, q_argv, | |
780 | getuserinfo, (char *)q_argv); | |
781 | if (status != SUCCESS) | |
782 | { | |
783 | com_err(whoami, status, " while getting user info"); | |
784 | return status; | |
3f5f9b08 | 785 | } |
5eaef520 | 786 | q_argv[U_NAME + 1] = login; |
787 | q_argv[U_STATE + 1] = "7"; | |
788 | q_argv[U_SIGNATURE + 1] = ""; | |
789 | status = mr_query("update_user_account", U_MODTIME + 1, q_argv, | |
790 | null_callproc, NULL); | |
791 | switch (status) | |
3f5f9b08 | 792 | { |
5eaef520 | 793 | case MR_SUCCESS: |
794 | status = SUCCESS; | |
795 | break; | |
796 | case MR_IN_USE: | |
797 | case MR_NOT_UNIQUE: | |
798 | status = UREG_LOGIN_USED; | |
799 | break; | |
800 | case MR_DEADLOCK: | |
801 | status = UREG_MISC_ERROR; | |
802 | break; | |
803 | default: | |
804 | critical_alert(FAIL_INST, "%s returned from update_user_account.", | |
805 | error_message(status)); | |
806 | status = UREG_MISC_ERROR; | |
807 | break; | |
3f5f9b08 | 808 | } |
809 | } | |
5eaef520 | 810 | if (status == SUCCESS) |
3f5f9b08 | 811 | { |
5eaef520 | 812 | /* Moira login was successfully created; try to reserve kerberos |
813 | principal. */ | |
814 | /* If this routine fails, store the login in the retval so | |
815 | that it can be used in the client-side error message. */ | |
816 | if ((status = reserve_krb(login)) != SUCCESS) | |
817 | strcpy(retval, login); | |
3f5f9b08 | 818 | } |
819 | ||
5eaef520 | 820 | if (status) |
821 | com_err(whoami, status, " returned from set_identity"); | |
822 | else | |
823 | com_err(whoami, 0, "Identity set"); | |
824 | ||
825 | return status; | |
3f5f9b08 | 826 | } |
827 | ||
828 | ||
5eaef520 | 829 | void reg_com_err_hook(char *whoami, int code, char *fmt, caddr_t pvar) |
3f5f9b08 | 830 | { |
5eaef520 | 831 | if (whoami) |
832 | { | |
833 | fputs(whoami, stderr); | |
834 | fputs(": ", stderr); | |
835 | } | |
836 | if (code) | |
837 | fputs(error_message(code), stderr); | |
838 | if (fmt) | |
839 | _doprnt(fmt, pvar, stderr); | |
840 | putc('\n', stderr); | |
841 | fflush(stderr); | |
3f5f9b08 | 842 | } |
74cb1181 | 843 | |
844 | ||
5eaef520 | 845 | /* Find out if someone's secure instance password is set. |
74cb1181 | 846 | * Returns UREG_ALREADY_REGISTERED if set, SUCCESS (0) if not. |
847 | */ | |
848 | ||
5eaef520 | 849 | int get_secure(struct msg *message, char *retval) |
74cb1181 | 850 | { |
5eaef520 | 851 | int status; |
852 | char *argv[U_END]; | |
853 | ||
854 | com_err(whoami, 0, "checking status of secure password for %s", | |
855 | message->first); | |
856 | argv[0] = message->first; | |
857 | status = mr_query("get_user_account_by_login", 1, argv, getuserinfo, | |
858 | (char *)argv); | |
859 | if (status != SUCCESS) | |
860 | { | |
861 | com_err(whoami, status, " while getting user info"); | |
862 | return status; | |
74cb1181 | 863 | } |
5eaef520 | 864 | if (atoi(argv[U_SECURE + 1])) |
865 | return UREG_ALREADY_REGISTERED; | |
866 | return SUCCESS; | |
74cb1181 | 867 | } |
868 | ||
869 | ||
870 | /* Set someone's secure instance password. */ | |
871 | ||
5eaef520 | 872 | int set_secure(struct msg *message, char *retval) |
74cb1181 | 873 | { |
5eaef520 | 874 | int status, i; |
875 | char *argv[U_END], hostbuf[256], *bp, *p, buf[512], *passwd, *id; | |
876 | KTEXT_ST creds; | |
877 | AUTH_DAT auth; | |
878 | C_Block key; | |
879 | Key_schedule keys; | |
880 | Kadm_vals kv; | |
881 | u_long *lkey = (u_long *)key; | |
882 | struct timeval now; | |
883 | static int inited = 0; | |
884 | static char *host; | |
885 | extern char *krb_get_phost(char *); | |
886 | ||
887 | if (!inited) | |
888 | { | |
889 | inited++; | |
890 | if (gethostname(hostbuf, sizeof(hostbuf)) < 0) | |
891 | com_err(whoami, errno, "getting local hostname"); | |
892 | host = strsave(krb_get_phost(hostbuf)); | |
74cb1181 | 893 | } |
894 | ||
5eaef520 | 895 | com_err(whoami, 0, "setting secure passwd for %s", message->first); |
896 | argv[0] = message->first; | |
897 | status = mr_query("get_user_account_by_login", 1, argv, getuserinfo, | |
898 | (char *)argv); | |
899 | if (status != SUCCESS) | |
900 | { | |
901 | com_err(whoami, status, " while getting user info"); | |
902 | return status; | |
74cb1181 | 903 | } |
5eaef520 | 904 | if (atoi(argv[U_SECURE + 1])) |
905 | { | |
906 | com_err(whoami, UREG_ALREADY_REGISTERED, "in set_secure()"); | |
907 | return UREG_ALREADY_REGISTERED; | |
74cb1181 | 908 | } |
909 | ||
5eaef520 | 910 | bp = message->encrypted; |
911 | /* round up to word boundary */ | |
912 | bp = (char *)((((u_long)bp + 3) >> 2) << 2); | |
913 | ||
914 | creds.length = ntohl(*((int *)bp)); | |
915 | bp += sizeof(int); | |
916 | memcpy(creds.dat, bp, creds.length); | |
917 | creds.mbz = 0; | |
918 | bp += creds.length; | |
919 | ||
920 | status = krb_rd_req(&creds, "changepw", host, cur_req_sender(), &auth, ""); | |
921 | if (status) | |
922 | { | |
923 | status += krb_err_base; | |
924 | com_err(whoami, status, " verifying credentials in set_secure()"); | |
925 | return status; | |
74cb1181 | 926 | } |
927 | ||
5eaef520 | 928 | message->leftover_len = ntohl(*((int *)(bp))); |
929 | bp += sizeof(int); | |
930 | message->leftover = bp; | |
931 | ||
932 | des_key_sched(auth.session, keys); | |
933 | des_pcbc_encrypt(message->leftover, buf, message->leftover_len, | |
934 | keys, auth.session, 0); | |
935 | ||
936 | id = buf; | |
937 | passwd = strchr(buf, ','); | |
938 | *passwd++ = 0; | |
939 | ||
940 | if (strcmp(id, argv[U_MITID + 1])) | |
941 | { | |
942 | char buf[32]; | |
943 | ||
944 | EncryptID(buf, id, argv[U_FIRST + 1], argv[U_LAST + 1]); | |
945 | if (strcmp(buf, argv[U_MITID + 1])) | |
946 | { | |
947 | status = UREG_USER_NOT_FOUND; | |
948 | com_err(whoami, status, "IDs mismatch: %s (%s), %s", id, buf, | |
949 | argv[U_MITID + 1]); | |
950 | return status; | |
9587d5ff | 951 | } |
74cb1181 | 952 | } |
953 | ||
5eaef520 | 954 | /* now do actual password setting stuff */ |
74cb1181 | 955 | |
5eaef520 | 956 | if ((status = ureg_kadm_init()) != SUCCESS) |
957 | { | |
958 | com_err(whoami, status, "initing kadm stuff"); | |
959 | return status; | |
74cb1181 | 960 | } |
961 | ||
5eaef520 | 962 | memset(&kv, 0, sizeof(kv)); |
963 | SET_FIELD(KADM_DESKEY, kv.fields); | |
964 | SET_FIELD(KADM_NAME, kv.fields); | |
965 | SET_FIELD(KADM_INST, kv.fields); | |
966 | des_string_to_key(passwd, key); | |
967 | kv.key_low = htonl(lkey[0]); | |
968 | kv.key_high = htonl(lkey[1]); | |
969 | strcpy(kv.name, message->first); | |
970 | strcpy(kv.instance, "extra"); | |
971 | ||
972 | if ((status = kadm_add(&kv)) != KADM_SUCCESS) | |
973 | { | |
974 | com_err(whoami, status, " while creating kerberos principal"); | |
975 | return status; | |
74cb1181 | 976 | } |
977 | ||
5eaef520 | 978 | argv[0] = message->first; |
979 | argv[1] = buf; | |
980 | gettimeofday(&now, NULL); | |
981 | sprintf(buf, "%d", now.tv_sec); | |
982 | status = mr_query("update_user_security_status", 2, argv, getuserinfo, | |
983 | (char *)argv); | |
984 | if (status != SUCCESS) | |
985 | { | |
986 | com_err(whoami, status, " while updating user status"); | |
987 | return status; | |
74cb1181 | 988 | } |
5eaef520 | 989 | return SUCCESS; |
74cb1181 | 990 | } |