6 * (c) Copyright 1988 by the Massachusetts Institute of Technology.
7 * For copying and distribution information, please see the file
12 static char *rcsid_reg_stubs_c = "$Header$";
15 #include <mit-copyright.h>
18 #include <sys/types.h>
20 #include <sys/socket.h>
21 #include <netinet/in.h>
28 #include <moira_site.h>
31 #include "ureg_proto.h"
35 static int reg_sock = -1;
36 static int seq_no = 0;
39 #define UNKNOWN_HOST -1
40 #define UNKNOWN_SERVICE -2
43 #define FD_ZERO(p) ((p)->fds_bits[0] = 0)
44 #define FD_SET(n, p) ((p)->fds_bits[0] |= (1 << (n)))
45 #define FD_ISSET(n, p) ((p)->fds_bits[0] & (1 << (n)))
53 struct sockaddr_in s_in;
55 initialize_ureg_error_table();
56 initialize_krb_error_table();
57 initialize_sms_error_table();
58 initialize_kadm_error_table();
63 host = getenv("REGSERVER");
65 if (!host || (strlen(host) == 0))
67 p = hes_resolve("registration", "sloc");
72 if (!host || (strlen(host) == 0))
74 host = strsave(MOIRA_SERVER);
75 s = strchr(host, ':');
79 hp = gethostbyname(host);
80 host = strsave(hp->h_name);
84 sp = getservbyname("sms_ureg", "udp");
87 return UNKNOWN_SERVICE;
90 reg_sock = socket(AF_INET, SOCK_DGRAM, 0);
94 memset(&s_in, 0, sizeof(s_in));
95 s_in.sin_port = sp->s_port;
96 memcpy(&s_in.sin_addr, hp->h_addr, sizeof(struct in_addr));
97 s_in.sin_family = AF_INET;
99 if (connect(reg_sock, (struct sockaddr *)&s_in, sizeof(s_in)) < 0)
104 int verify_user(char *first, char *last, char *idnumber,
105 char *hashidnumber, char *login)
108 int version = ntohl((u_long)1);
109 int call = ntohl((u_long)UREG_VERIFY_USER);
114 char crypt_src[1024];
116 memcpy(bp, &version, sizeof(int));
119 memcpy(bp, &seq_no, sizeof(int));
123 memcpy(bp, &call, sizeof(int));
128 bp += strlen(bp) + 1;
131 bp += strlen(bp) + 1;
133 len = strlen(idnumber) + 1;
134 memcpy(crypt_src, idnumber, len);
136 memcpy(crypt_src + len, hashidnumber, 13);
138 des_string_to_key(hashidnumber, key);
139 des_key_sched(key, ks);
140 des_pcbc_encrypt(crypt_src, bp, len + 13, ks, key, DES_ENCRYPT);
143 return do_call(buf, len, seq_no, login);
146 int do_operation(char *first, char *last, char *idnumber, char *hashidnumber,
147 char *data, u_long opcode)
150 int version = ntohl((u_long)1);
151 int call = ntohl(opcode);
157 char crypt_src[1024];
160 memcpy(bp, &version, sizeof(int));
163 memcpy(bp, &seq_no, sizeof(int));
167 memcpy(bp, &call, sizeof(int));
172 bp += strlen(bp) + 1;
175 bp += strlen(bp) + 1;
177 len = strlen(idnumber) + 1;
180 memcpy(crypt_src, idnumber, len);
183 memcpy(cbp, hashidnumber, 14);
186 len = strlen(data) + 1;
187 memcpy(cbp, data, len);
190 len = cbp - crypt_src;
191 des_string_to_key(hashidnumber, key);
192 des_key_sched(key, ks);
193 des_pcbc_encrypt(crypt_src, bp, len, ks, key, 1);
194 len = ((len + 7) >> 3) << 3;
198 return do_call(buf, len, seq_no, 0);
201 int grab_login(char *first, char *last, char *idnumber, char *hashidnumber,
204 return do_operation(first, last, idnumber, hashidnumber, login,
208 int enroll_login(char *first, char *last, char *idnumber, char *hashidnumber,
211 return do_operation(first, last, idnumber, hashidnumber, login,
215 int set_password(char *first, char *last, char *idnumber, char *hashidnumber,
218 return do_operation(first, last, idnumber, hashidnumber, password,
222 int get_krb(char *first, char *last, char *idnumber, char *hashidnumber,
225 return do_operation(first, last, idnumber, hashidnumber, password,
230 /* The handles the operations for secure passwords.
231 * To find out if a user has a secure instance, the newpasswd
232 * field is ignored (but must be a valid char *)
233 * and the opcode = UREG_GET_SECURE need to be specified (but the
234 * other strings must be valid char*'s). This will return
235 * UREG_ALREADY_REGISTERED if it is set, or SUCCESS if not.
236 * To set the password, fill in the rest of the fields, and
237 * use opcode = UREG_SET_SECURE. This returns SUCCESS or any number
241 int do_secure_operation(char *login, char *idnumber, char *passwd,
242 char *newpasswd, u_long opcode)
244 char buf[1500], data[128], tktstring[128];
245 int version = ntohl((u_long)1);
246 int call = ntohl(opcode);
247 char inst[INST_SZ], hosti[INST_SZ];
248 char *bp = buf, *src, *dst, *realm;
253 char *krb_get_phost(), *krb_realmofhost();
255 memmove(bp, &version, sizeof(int));
258 memmove(bp, &seq_no, sizeof(int));
261 memmove(bp, &call, sizeof(int));
265 /* put the login name in the firstname field */
267 bp += strlen(bp) + 1;
269 /* the old lastname field */
271 bp += strlen(bp) + 1;
273 /* don't overwrite existing ticket file */
274 sprintf(tktstring, "/tmp/tkt_cpw_%d", getpid());
275 krb_set_tkt_string(tktstring);
277 /* get realm and canonizalized hostname of server */
278 realm = krb_realmofhost(host);
279 for (src = host, dst = hosti; *src && *src != '.'; src++)
282 *dst++ = tolower(*src);
289 /* get changepw tickets. We use this service because it's the
290 * only one that guarantees we used the password rather than a
291 * ticket granting ticket.
293 status = krb_get_pw_in_tkt(login, inst, realm, "changepw", hosti, 5, passwd);
295 return status + krb_err_base;
297 status = krb_mk_req(&cred, "changepw", hosti, realm, 0);
299 return status + krb_err_base;
301 /* round up to word boundry */
302 bp = (char *)((((u_long)bp) + 3) & 0xfffffffc);
304 /* put the ticket in the packet */
306 cred.length = htonl(cred.length);
307 memmove(bp, &(cred), sizeof(int) + len);
308 bp += sizeof(int) + len;
310 /* encrypt the data in the session key */
311 sprintf(data, "%s,%s", idnumber, newpasswd);
313 len = ((len + 7) >> 3) << 3;
315 status = krb_get_cred("changepw", hosti, realm, &creds);
318 memset(data, 0, strlen(data));
319 return status + krb_err_base;
323 des_key_sched(creds.session, keys);
324 des_pcbc_encrypt(data, bp + sizeof(int), len, keys, creds.session, 1);
325 *((int *)bp) = htonl(len);
326 memset(data, 0, strlen(data));
328 bp += len + sizeof(int);
331 return do_call(buf, len, seq_no, 0);
334 int do_call(char *buf, int len, int seq_no, char *login)
336 struct timeval timeout;
344 if (write(reg_sock, buf, len) != len)
348 FD_SET(reg_sock, &set);
354 struct sockaddr_in s_in;
355 int addrlen = sizeof(s_in);
360 rtn = select(reg_sock + 1, &set, NULL, NULL, &timeout);
366 len = recvfrom(reg_sock, ibuf, BUFSIZ, 0,
367 (struct sockaddr *)&s_in, &addrlen);
371 return UREG_BROKEN_PACKET;
372 memcpy(&vno, ibuf, sizeof(long));
373 vno = ntohl((u_long)vno);
376 memcpy(&sno, ibuf + 4, sizeof(long));
381 memcpy(&stat, ibuf + 8, sizeof(long));
382 stat = ntohl((u_long)stat);
383 if (login && len > 12)
385 memcpy(login, ibuf + 12, len - 12);
386 login[len - 12] = '\0';
394 while (++retry < 10);