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