[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();
    initialize_krb_error_table(); 
    initialize_sms_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();
a85aba2f	45	initialize_krb_error_table();
	46	initialize_sms_error_table();
	47
8edc0757	48	seq_no = getpid();
8edc0757	49
028ff1c1	50	host = NULL;
	51	host = getenv("REGSERVER");
	52	#ifdef HESIOD
	53	if (!host \|\| (strlen(host) == 0)) {
	54	p = hes_resolve("registration", "sloc");
	55	if (p) host = *p;
	56	}
	57	#endif HESIOD
	58	if (!host \|\| (strlen(host) == 0)) {
8defc06b	59	host = strsave(MOIRA_SERVER);
14ef68d0	60	s = index(host, ':');
14ef68d0	61	if (s) *s = 0;
028ff1c1	62	}
028ff1c1	63	hp = gethostbyname(host);
6e6374cb	64	if (hp == NULL) return UNKNOWN_HOST;
	65
	66	sp = getservbyname("sms_ureg", "udp");
	67
	68	if (sp == NULL) return UNKNOWN_SERVICE;
	69
	70	(void) close(reg_sock);
	71	reg_sock = socket(AF_INET, SOCK_DGRAM, 0);
	72	if (reg_sock < 0) return errno;
	73
	74	bzero((char *)&sin, sizeof(sin));
	75	sin.sin_port = sp->s_port;
	76	bcopy(hp->h_addr, (char *)&sin.sin_addr, sizeof(struct in_addr));
	77	sin.sin_family = AF_INET;
	78
	79	if (connect(reg_sock, &sin, sizeof(sin)) < 0)
	80	return errno;
	81	return 0;
	82	}
	83
6e6374cb	84	int
	85	verify_user(first, last, idnumber, hashidnumber, login)
	86	char first, last, idnumber, hashidnumber, *login;
	87	{
	88	char buf[1024];
	89	int version = ntohl((u_long)1);
	90	int call = ntohl((u_long)UREG_VERIFY_USER);
c1b9c340	91	des_cblock key;
c1b9c340	92	des_key_schedule ks;
6e6374cb	93	register char *bp = buf;
	94	register int len;
	95	char crypt_src[1024];
	96
	97	bcopy((char *)&version, bp, sizeof(int));
	98	bp += sizeof(int);
	99	seq_no++;
	100	bcopy((char *)&seq_no, bp, sizeof(int));
	101
	102	bp += sizeof(int);
	103
	104	bcopy((char *)&call, bp, sizeof(int));
	105
	106	bp += sizeof(int);
	107
	108	(void) strcpy(bp, first);
	109	bp += strlen(bp)+1;
	110
	111	(void) strcpy(bp, last);
	112	bp += strlen(bp)+1;
	113
	114	len = strlen(idnumber) + 1;
	115	bcopy(idnumber, crypt_src, len);
	116
	117	bcopy(hashidnumber, crypt_src+len, 13);
	118
c1b9c340	119	des_string_to_key(hashidnumber, key);
c1b9c340	120	des_key_sched(key, ks);
e4b6711e	121	des_pcbc_encrypt(crypt_src, bp, len+13, ks, key, DES_ENCRYPT);
6e6374cb	122	bp += len+14+8;
	123	len = bp - buf;
	124	return do_call(buf, len, seq_no, login);
	125	}
	126
5dee7862	127	do_operation(first, last, idnumber, hashidnumber, data, opcode)
	128	char first, last, idnumber, hashidnumber, *data;
	129	u_long opcode;
6e6374cb	130	{
	131	char buf[1024];
	132	int version = ntohl((u_long)1);
5dee7862	133	int call = ntohl(opcode);
c1b9c340	134	des_cblock key;
c1b9c340	135	des_key_schedule ks;
6e6374cb	136	register char *bp = buf;
6e6374cb	137	register int len;
6e6374cb	138
	139	char crypt_src[1024];
	140	char *cbp;
	141
	142	bcopy((char *)&version, bp, sizeof(int));
	143	bp += sizeof(int);
	144	seq_no++;
	145	bcopy((char *)&seq_no, bp, sizeof(int));
	146
	147	bp += sizeof(int);
	148
	149	bcopy((char *)&call, bp, sizeof(int));
	150
	151	bp += sizeof(int);
	152
	153	(void) strcpy(bp, first);
	154	bp += strlen(bp)+1;
	155
	156	(void) strcpy(bp, last);
	157	bp += strlen(bp)+1;
	158
	159	len = strlen(idnumber) + 1;
	160	cbp = crypt_src;
	161
	162	bcopy(idnumber, crypt_src, len);
	163	cbp += len;
	164
	165	bcopy(hashidnumber, cbp, 14);
	166	cbp += 14;
	167
5dee7862	168	len = strlen(data) + 1;
5dee7862	169	bcopy(data, cbp, len);
6e6374cb	170	cbp += len;
	171
	172	len = cbp - crypt_src;
c1b9c340	173	des_string_to_key(hashidnumber, key);
	174	des_key_sched(key, ks);
	175	des_pcbc_encrypt(crypt_src, bp, len, ks, key, 1);
6e6374cb	176	len = ((len + 7) >> 3) << 3;
	177	bp += len;
	178
	179	len = bp - buf;
	180	return do_call(buf, len, seq_no, 0);
	181
	182	}
	183
5dee7862	184	grab_login(first, last, idnumber, hashidnumber, login)
5dee7862	185	char first, last, idnumber, hashidnumber, *login;
6e6374cb	186	{
5dee7862	187	return(do_operation(first, last, idnumber, hashidnumber, login,
	188	UREG_RESERVE_LOGIN));
	189	}
6e6374cb	190
5dee7862	191	enroll_login(first, last, idnumber, hashidnumber, login)
	192	char first, last, idnumber, hashidnumber, *login;
	193	{
	194	return(do_operation(first, last, idnumber, hashidnumber, login,
	195	UREG_SET_IDENT));
	196	}
6e6374cb	197
5dee7862	198	set_password(first, last, idnumber, hashidnumber, password)
	199	char first, last, idnumber, hashidnumber, *password;
	200	{
	201	return(do_operation(first, last, idnumber, hashidnumber, password,
	202	UREG_SET_PASSWORD));
	203	}
6e6374cb	204
5dee7862	205	get_krb(first, last, idnumber, hashidnumber, password)
	206	char first, last, idnumber, hashidnumber, *password;
	207	{
	208	return(do_operation(first, last, idnumber, hashidnumber, password,
	209	UREG_GET_KRB));
6e6374cb	210	}
	211
	212	static do_call(buf, len, seq_no, login)
	213	char *buf;
	214	char *login;
	215	int seq_no;
	216	int len;
	217	{
	218	struct timeval timeout;
	219	char ibuf[1024];
	220	fd_set set;
	221
	222	int retry = 0;
	223
	224	do {
	225	if (write(reg_sock, buf, len) != len) return errno;
	226
	227	FD_ZERO(&set);
	228	FD_SET(reg_sock, &set);
aea2c8ee	229	timeout.tv_sec = 30;
6e6374cb	230	timeout.tv_usec = 0;
	231	do {
	232	int rtn;
	233	struct sockaddr_in sin;
	234	int addrlen = sizeof(sin);
	235	int vno;
	236	int sno;
	237	int stat;
	238
	239	rtn = select(reg_sock+1, &set, (fd_set )0, (fd_set )0, &timeout);
	240	if (rtn == 0)
	241	break;
	242	else if (rtn < 0) return errno;
	243
	244	len = recvfrom(reg_sock, ibuf, BUFSIZ, 0, &sin, &addrlen);
	245	if (len < 0) return errno;
	246	if (len < 12) return UREG_BROKEN_PACKET;
	247	bcopy(ibuf, (char *)&vno, sizeof(long));
	248	vno = ntohl((u_long)vno);
	249	if (vno != 1) continue;
	250	bcopy(ibuf + 4, (char *)&sno, sizeof(long));
	251
	252	if (sno != seq_no) continue;
	253
	254	bcopy(ibuf + 8, (char *)&stat, sizeof(long));
	255	stat = ntohl((u_long)stat);
51ccb3ec	256	if (login && len > 12) {
6e6374cb	257	bcopy(ibuf+12, login, len-12);
6e6374cb	258	login[len-12] = '\0';
51ccb3ec	259	} else if (login)
51ccb3ec	260	*login = '\0';
6e6374cb	261	return stat;
6e6374cb	262	} while (1);
0c8192b9	263	} while (++retry < 10);
6e6374cb	264	return ETIMEDOUT;
6e6374cb	265	}