[moira.git] / clients / userreg / reg_stubs.c

/*
 *	$Source$
 *	$Author$
 *	$Header$
 *
 *  (c) Copyright 1988 by the Massachusetts Institute of Technology.
 *  For copying and distribution information, please see the file
 *  <mit-copyright.h>.
 */

#ifndef lint
static char *rcsid_reg_stubs_c = "$Header$";
#endif lint

#include <mit-copyright.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <des.h>
#include <errno.h>
#include <moira.h>
#include <moira_site.h>
#include "ureg_err.h"
#include "ureg_proto.h"
#include <strings.h>

static int reg_sock = -1;
static int seq_no = 0;
extern errno;
#define UNKNOWN_HOST -1
#define UNKNOWN_SERVICE -2

ureg_init()
{
    struct servent *sp;
    char *host, **p, *s;
    struct hostent *hp;
    struct sockaddr_in sin;
    extern char *getenv(), **hes_resolve();
    
    initialize_ureg_error_table();
    
    seq_no = getpid();

    host = NULL;
    host = getenv("REGSERVER");
#ifdef HESIOD
    if (!host || (strlen(host) == 0)) {
	p = hes_resolve("registration", "sloc");
	if (p) host = *p;
    }
#endif HESIOD
    if (!host || (strlen(host) == 0)) {
	host = strsave(MOIRA_SERVER);
	s = index(host, ':');
	if (s) *s = 0;
    }
    hp = gethostbyname(host);
    if (hp == NULL) return UNKNOWN_HOST;

    sp = getservbyname("sms_ureg", "udp");

    if (sp == NULL) return UNKNOWN_SERVICE;
    
    (void) close(reg_sock);
    reg_sock = socket(AF_INET, SOCK_DGRAM, 0);
    if (reg_sock < 0) return errno;

    bzero((char *)&sin, sizeof(sin));
    sin.sin_port = sp->s_port;
    bcopy(hp->h_addr, (char *)&sin.sin_addr, sizeof(struct in_addr));
    sin.sin_family = AF_INET;

    if (connect(reg_sock, &sin, sizeof(sin)) < 0)
	return errno;
    return 0;
}

int
verify_user(first, last, idnumber, hashidnumber, login)
    char *first, *last, *idnumber, *hashidnumber, *login;
{
    char buf[1024];
    int version = ntohl((u_long)1);
    int call = ntohl((u_long)UREG_VERIFY_USER);
    des_cblock key;
    des_key_schedule ks;
    register char *bp = buf;
    register int len;
    char crypt_src[1024];
    
    bcopy((char *)&version, bp, sizeof(int));
    bp += sizeof(int);
    seq_no++;
    bcopy((char *)&seq_no, bp, sizeof(int));

    bp += sizeof(int);

    bcopy((char *)&call, bp, sizeof(int));

    bp += sizeof(int);

    (void) strcpy(bp, first);
    bp += strlen(bp)+1;

    (void) strcpy(bp, last);
    bp += strlen(bp)+1;

    len = strlen(idnumber) + 1;
    bcopy(idnumber, crypt_src, len);

    bcopy(hashidnumber, crypt_src+len, 13);

    des_string_to_key(hashidnumber, key);
    des_key_sched(key, ks);
    des_pcbc_encrypt(crypt_src, bp, len+13, ks, key, DES_ENCRYPT);
    bp += len+14+8;
    len = bp - buf;
    return do_call(buf, len, seq_no, login);
}

do_operation(first, last, idnumber, hashidnumber, data, opcode)
    char *first, *last, *idnumber, *hashidnumber, *data;
    u_long opcode;
{
    char buf[1024];
    int version = ntohl((u_long)1);
    int call = ntohl(opcode);
    des_cblock key;
    des_key_schedule ks;
    register char *bp = buf;
    register int len;
    
    char crypt_src[1024];
    char *cbp;
    
    bcopy((char *)&version, bp, sizeof(int));
    bp += sizeof(int);
    seq_no++;
    bcopy((char *)&seq_no, bp, sizeof(int));

    bp += sizeof(int);

    bcopy((char *)&call, bp, sizeof(int));

    bp += sizeof(int);

    (void) strcpy(bp, first);
    bp += strlen(bp)+1;

    (void) strcpy(bp, last);
    bp += strlen(bp)+1;

    len = strlen(idnumber) + 1;
    cbp = crypt_src;
    
    bcopy(idnumber, crypt_src, len);
    cbp += len;
    
    bcopy(hashidnumber, cbp, 14);
    cbp += 14;
    
    len = strlen(data) + 1;
    bcopy(data, cbp, len);
    cbp += len;

    len = cbp - crypt_src;
    des_string_to_key(hashidnumber, key);
    des_key_sched(key, ks);
    des_pcbc_encrypt(crypt_src, bp, len, ks, key, 1);
    len = ((len + 7) >> 3) << 3;
    bp += len;
    
    len = bp - buf;
    return do_call(buf, len, seq_no, 0);

}

grab_login(first, last, idnumber, hashidnumber, login)
    char *first, *last, *idnumber, *hashidnumber, *login;
{
    return(do_operation(first, last, idnumber, hashidnumber, login,
			UREG_RESERVE_LOGIN));
}

enroll_login(first, last, idnumber, hashidnumber, login)
    char *first, *last, *idnumber, *hashidnumber, *login;
{
    return(do_operation(first, last, idnumber, hashidnumber, login,
			UREG_SET_IDENT));
}

set_password(first, last, idnumber, hashidnumber, password)
    char *first, *last, *idnumber, *hashidnumber, *password;
{
    return(do_operation(first, last, idnumber, hashidnumber, password,
			UREG_SET_PASSWORD));
}

get_krb(first, last, idnumber, hashidnumber, password)
    char *first, *last, *idnumber, *hashidnumber, *password;
{
    return(do_operation(first, last, idnumber, hashidnumber, password,
			UREG_GET_KRB));
}

static do_call(buf, len, seq_no, login)
    char *buf;
    char *login;
    int seq_no;
    int len;
{
    struct timeval timeout;
    char ibuf[1024];
    fd_set set;
    
    int retry = 0;

    do {
	if (write(reg_sock, buf, len) != len) return errno;

	FD_ZERO(&set);
	FD_SET(reg_sock, &set);
	timeout.tv_sec = 30;
	timeout.tv_usec = 0;
	do {
	    int rtn;
	    struct sockaddr_in sin;
	    int addrlen = sizeof(sin);
	    int vno;
	    int sno;
	    int stat;
	    
	    rtn = select(reg_sock+1, &set, (fd_set *)0, (fd_set *)0, &timeout);
	    if (rtn == 0)
		break;
	    else if (rtn < 0) return errno;
	
	    len = recvfrom(reg_sock, ibuf, BUFSIZ, 0, &sin, &addrlen);
	    if (len < 0) return errno;
	    if (len < 12) return UREG_BROKEN_PACKET;
	    bcopy(ibuf, (char *)&vno, sizeof(long));
	    vno = ntohl((u_long)vno);
	    if (vno != 1) continue;
	    bcopy(ibuf + 4, (char *)&sno, sizeof(long));

	    if (sno != seq_no) continue;

	    bcopy(ibuf + 8, (char *)&stat, sizeof(long));
	    stat = ntohl((u_long)stat);
	    if (login && len > 12) {
		bcopy(ibuf+12, login, len-12);
		login[len-12] = '\0';
	    } else if (login)
		*login = '\0';
	    return stat;
	} while (1);
    } while (++retry < 10);
    return ETIMEDOUT;
}
Commit	Line	Data
6e6374cb	1	/*
	2	* $Source$
	3	* $Author$
	4	* $Header$
	5	*
7189310c	6	* (c) Copyright 1988 by the Massachusetts Institute of Technology.
	7	* For copying and distribution information, please see the file
	8	* <mit-copyright.h>.
6e6374cb	9	*/
	10
	11	#ifndef lint
	12	static char *rcsid_reg_stubs_c = "$Header$";
	13	#endif lint
7189310c	14
7189310c	15	#include <mit-copyright.h>
6e6374cb	16	#include <stdio.h>
	17	#include <sys/types.h>
	18	#include <sys/time.h>
	19	#include <sys/socket.h>
	20	#include <netinet/in.h>
	21	#include <netdb.h>
	22	#include <des.h>
	23	#include <errno.h>
8defc06b	24	#include <moira.h>
8defc06b	25	#include <moira_site.h>
6e6374cb	26	#include "ureg_err.h"
	27	#include "ureg_proto.h"
	28	#include <strings.h>
	29
	30	static int reg_sock = -1;
8edc0757	31	static int seq_no = 0;
6e6374cb	32	extern errno;
	33	#define UNKNOWN_HOST -1
	34	#define UNKNOWN_SERVICE -2
	35
	36	ureg_init()
	37	{
	38	struct servent *sp;
14ef68d0	39	char host, p, s;
6e6374cb	40	struct hostent *hp;
6e6374cb	41	struct sockaddr_in sin;
028ff1c1	42	extern char getenv(), *hes_resolve();
6e6374cb	43
e0cddd92	44	initialize_ureg_error_table();
6e6374cb	45
8edc0757	46	seq_no = getpid();
8edc0757	47
028ff1c1	48	host = NULL;
	49	host = getenv("REGSERVER");
	50	#ifdef HESIOD
	51	if (!host \|\| (strlen(host) == 0)) {
	52	p = hes_resolve("registration", "sloc");
	53	if (p) host = *p;
	54	}
	55	#endif HESIOD
	56	if (!host \|\| (strlen(host) == 0)) {
8defc06b	57	host = strsave(MOIRA_SERVER);
14ef68d0	58	s = index(host, ':');
14ef68d0	59	if (s) *s = 0;
028ff1c1	60	}
028ff1c1	61	hp = gethostbyname(host);
6e6374cb	62	if (hp == NULL) return UNKNOWN_HOST;
	63
	64	sp = getservbyname("sms_ureg", "udp");
	65
	66	if (sp == NULL) return UNKNOWN_SERVICE;
	67
	68	(void) close(reg_sock);
	69	reg_sock = socket(AF_INET, SOCK_DGRAM, 0);
	70	if (reg_sock < 0) return errno;
	71
	72	bzero((char *)&sin, sizeof(sin));
	73	sin.sin_port = sp->s_port;
	74	bcopy(hp->h_addr, (char *)&sin.sin_addr, sizeof(struct in_addr));
	75	sin.sin_family = AF_INET;
	76
	77	if (connect(reg_sock, &sin, sizeof(sin)) < 0)
	78	return errno;
	79	return 0;
	80	}
	81
6e6374cb	82	int
	83	verify_user(first, last, idnumber, hashidnumber, login)
	84	char first, last, idnumber, hashidnumber, *login;
	85	{
	86	char buf[1024];
	87	int version = ntohl((u_long)1);
	88	int call = ntohl((u_long)UREG_VERIFY_USER);
c1b9c340	89	des_cblock key;
c1b9c340	90	des_key_schedule ks;
6e6374cb	91	register char *bp = buf;
	92	register int len;
	93	char crypt_src[1024];
	94
	95	bcopy((char *)&version, bp, sizeof(int));
	96	bp += sizeof(int);
	97	seq_no++;
	98	bcopy((char *)&seq_no, bp, sizeof(int));
	99
	100	bp += sizeof(int);
	101
	102	bcopy((char *)&call, bp, sizeof(int));
	103
	104	bp += sizeof(int);
	105
	106	(void) strcpy(bp, first);
	107	bp += strlen(bp)+1;
	108
	109	(void) strcpy(bp, last);
	110	bp += strlen(bp)+1;
	111
	112	len = strlen(idnumber) + 1;
	113	bcopy(idnumber, crypt_src, len);
	114
	115	bcopy(hashidnumber, crypt_src+len, 13);
	116
c1b9c340	117	des_string_to_key(hashidnumber, key);
c1b9c340	118	des_key_sched(key, ks);
e4b6711e	119	des_pcbc_encrypt(crypt_src, bp, len+13, ks, key, DES_ENCRYPT);
6e6374cb	120	bp += len+14+8;
	121	len = bp - buf;
	122	return do_call(buf, len, seq_no, login);
	123	}
	124
5dee7862	125	do_operation(first, last, idnumber, hashidnumber, data, opcode)
	126	char first, last, idnumber, hashidnumber, *data;
	127	u_long opcode;
6e6374cb	128	{
	129	char buf[1024];
	130	int version = ntohl((u_long)1);
5dee7862	131	int call = ntohl(opcode);
c1b9c340	132	des_cblock key;
c1b9c340	133	des_key_schedule ks;
6e6374cb	134	register char *bp = buf;
6e6374cb	135	register int len;
6e6374cb	136
	137	char crypt_src[1024];
	138	char *cbp;
	139
	140	bcopy((char *)&version, bp, sizeof(int));
	141	bp += sizeof(int);
	142	seq_no++;
	143	bcopy((char *)&seq_no, bp, sizeof(int));
	144
	145	bp += sizeof(int);
	146
	147	bcopy((char *)&call, bp, sizeof(int));
	148
	149	bp += sizeof(int);
	150
	151	(void) strcpy(bp, first);
	152	bp += strlen(bp)+1;
	153
	154	(void) strcpy(bp, last);
	155	bp += strlen(bp)+1;
	156
	157	len = strlen(idnumber) + 1;
	158	cbp = crypt_src;
	159
	160	bcopy(idnumber, crypt_src, len);
	161	cbp += len;
	162
	163	bcopy(hashidnumber, cbp, 14);
	164	cbp += 14;
	165
5dee7862	166	len = strlen(data) + 1;
5dee7862	167	bcopy(data, cbp, len);
6e6374cb	168	cbp += len;
	169
	170	len = cbp - crypt_src;
c1b9c340	171	des_string_to_key(hashidnumber, key);
	172	des_key_sched(key, ks);
	173	des_pcbc_encrypt(crypt_src, bp, len, ks, key, 1);
6e6374cb	174	len = ((len + 7) >> 3) << 3;
	175	bp += len;
	176
	177	len = bp - buf;
	178	return do_call(buf, len, seq_no, 0);
	179
	180	}
	181
5dee7862	182	grab_login(first, last, idnumber, hashidnumber, login)
5dee7862	183	char first, last, idnumber, hashidnumber, *login;
6e6374cb	184	{
5dee7862	185	return(do_operation(first, last, idnumber, hashidnumber, login,
	186	UREG_RESERVE_LOGIN));
	187	}
6e6374cb	188
5dee7862	189	enroll_login(first, last, idnumber, hashidnumber, login)
	190	char first, last, idnumber, hashidnumber, *login;
	191	{
	192	return(do_operation(first, last, idnumber, hashidnumber, login,
	193	UREG_SET_IDENT));
	194	}
6e6374cb	195
5dee7862	196	set_password(first, last, idnumber, hashidnumber, password)
	197	char first, last, idnumber, hashidnumber, *password;
	198	{
	199	return(do_operation(first, last, idnumber, hashidnumber, password,
	200	UREG_SET_PASSWORD));
	201	}
6e6374cb	202
5dee7862	203	get_krb(first, last, idnumber, hashidnumber, password)
	204	char first, last, idnumber, hashidnumber, *password;
	205	{
	206	return(do_operation(first, last, idnumber, hashidnumber, password,
	207	UREG_GET_KRB));
6e6374cb	208	}
	209
	210	static do_call(buf, len, seq_no, login)
	211	char *buf;
	212	char *login;
	213	int seq_no;
	214	int len;
	215	{
	216	struct timeval timeout;
	217	char ibuf[1024];
	218	fd_set set;
	219
	220	int retry = 0;
	221
	222	do {
	223	if (write(reg_sock, buf, len) != len) return errno;
	224
	225	FD_ZERO(&set);
	226	FD_SET(reg_sock, &set);
aea2c8ee	227	timeout.tv_sec = 30;
6e6374cb	228	timeout.tv_usec = 0;
	229	do {
	230	int rtn;
	231	struct sockaddr_in sin;
	232	int addrlen = sizeof(sin);
	233	int vno;
	234	int sno;
	235	int stat;
	236
	237	rtn = select(reg_sock+1, &set, (fd_set )0, (fd_set )0, &timeout);
	238	if (rtn == 0)
	239	break;
	240	else if (rtn < 0) return errno;
	241
	242	len = recvfrom(reg_sock, ibuf, BUFSIZ, 0, &sin, &addrlen);
	243	if (len < 0) return errno;
	244	if (len < 12) return UREG_BROKEN_PACKET;
	245	bcopy(ibuf, (char *)&vno, sizeof(long));
	246	vno = ntohl((u_long)vno);
	247	if (vno != 1) continue;
	248	bcopy(ibuf + 4, (char *)&sno, sizeof(long));
	249
	250	if (sno != seq_no) continue;
	251
	252	bcopy(ibuf + 8, (char *)&stat, sizeof(long));
	253	stat = ntohl((u_long)stat);
51ccb3ec	254	if (login && len > 12) {
6e6374cb	255	bcopy(ibuf+12, login, len-12);
6e6374cb	256	login[len-12] = '\0';
51ccb3ec	257	} else if (login)
51ccb3ec	258	*login = '\0';
6e6374cb	259	return stat;
6e6374cb	260	} while (1);
0c8192b9	261	} while (++retry < 10);
6e6374cb	262	return ETIMEDOUT;
6e6374cb	263	}