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/*
* $Id: rpc.c,v 1.1 1993/12/10 18:59:29 dglo Exp gibbs $
* $Source: /usr/src/eBones/rkinitd/RCS/rpc.c,v $
* $Author: dglo $
*
* This file contains the network parts of the rkinit server.
*/
#if !defined(lint) && !defined(SABER) && !defined(LOCORE) && defined(RCS_HDRS)
static char *rcsid = "$Id: rpc.c,v 1.1 1993/12/10 18:59:29 dglo Exp gibbs $";
#endif /* lint || SABER || LOCORE || RCS_HDRS */
#include <stdio.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <syslog.h>
#include <signal.h>
#include <errno.h>
#include <string.h>
#include <rkinit.h>
#include <rkinit_err.h>
#include <rkinit_private.h>
#include "rkinitd.h"
#define RKINITD_TIMEOUT 60
extern int errno;
static int in; /* sockets */
static int out;
static char errbuf[BUFSIZ];
void error();
#ifdef __STDC__
static void timeout(int signal)
#else
static void timeout(signal)
int signal;
#endif /* __STDC__ */
{
syslog(LOG_WARNING, "rkinitd timed out.\n");
exit(1);
return;
}
/*
* This function does all the network setup for rkinitd.
* It returns true if we were started from inetd, or false if
* we were started from the commandline.
* It causes the program to exit if there is an error.
*/
#ifdef __STDC__
int setup_rpc(int notimeout)
#else
int setup_rpc(notimeout)
int notimeout; /* True if we should not timeout */
#endif /* __STDC__ */
{
struct itimerval timer; /* Time structure for timeout */
/* For now, support only inetd. */
in = 0;
out = 1;
if (! notimeout) {
SBCLEAR(timer);
/* Set up an itimer structure to send an alarm signal after timeout
seconds. */
timer.it_interval.tv_sec = RKINITD_TIMEOUT;
timer.it_interval.tv_usec = 0;
timer.it_value = timer.it_interval;
/* Start the timer. */
if (setitimer (ITIMER_REAL, &timer, (struct itimerval *)0) < 0) {
sprintf(errbuf, "setitimer: %s", sys_errlist[errno]);
rkinit_errmsg(errbuf);
error();
exit(1);
}
signal(SIGALRM, timeout);
}
return(TRUE);
}
#ifdef __STDC__
void rpc_exchange_version_info(int *c_lversion, int *c_hversion,
int s_lversion, int s_hversion)
#else
void rpc_exchange_version_info(c_lversion, c_hversion, s_lversion, s_hversion)
int *c_lversion;
int *c_hversion;
int s_lversion;
int s_hversion;
#endif /* __STDC__ */
{
u_char version_info[VERSION_INFO_SIZE];
u_int32_t length = sizeof(version_info);
if (rki_get_packet(in, MT_CVERSION, &length, (char *)version_info) !=
RKINIT_SUCCESS) {
error();
exit(1);
}
*c_lversion = version_info[0];
*c_hversion = version_info[1];
version_info[0] = s_lversion;
version_info[1] = s_hversion;
if (rki_send_packet(out, MT_SVERSION, length, (char *)version_info) !=
RKINIT_SUCCESS) {
error();
exit(1);
}
}
#ifdef __STDC__
void rpc_get_rkinit_info(rkinit_info *info)
#else
void rpc_get_rkinit_info(info)
rkinit_info *info;
#endif /* __STDC__ */
{
u_int32_t length = sizeof(rkinit_info);
if (rki_get_packet(in, MT_RKINIT_INFO, &length, (char *)info)) {
error();
exit(1);
}
info->lifetime = ntohl(info->lifetime);
}
#ifdef __STDC__
void rpc_send_error(char *errmsg)
#else
void rpc_send_error(errmsg)
char *errmsg;
#endif /* __STDC__ */
{
if (rki_send_packet(out, MT_STATUS, strlen(errmsg), errmsg)) {
error();
exit(1);
}
}
#ifdef __STDC__
void rpc_send_success(void)
#else
void rpc_send_success()
#endif /* __STDC__ */
{
if (rki_send_packet(out, MT_STATUS, 0, "")) {
error();
exit(1);
}
}
#ifdef __STDC__
void rpc_exchange_tkt(KTEXT cip, MSG_DAT *scip)
#else
void rpc_exchange_tkt(cip, scip)
KTEXT cip;
MSG_DAT *scip;
#endif /* __STDC__ */
{
u_int32_t length = MAX_KTXT_LEN;
if (rki_send_packet(out, MT_SKDC, cip->length, (char *)cip->dat)) {
error();
exit(1);
}
if (rki_get_packet(in, MT_CKDC, &length, (char *)scip->app_data)) {
error();
exit(1);
}
scip->app_length = length;
}
#ifdef __STDC__
void rpc_getauth(KTEXT auth, struct sockaddr_in *caddr,
struct sockaddr_in *saddr)
#else
void rpc_getauth(auth, caddr, saddr)
KTEXT auth;
struct sockaddr_in *caddr;
struct sockaddr_in *saddr;
#endif /* __STDC__ */
{
int addrlen = sizeof(struct sockaddr_in);
if (rki_rpc_get_ktext(in, auth, MT_AUTH)) {
error();
exit(1);
}
if (getpeername(in, (struct sockaddr *)caddr, &addrlen) < 0) {
sprintf(errbuf, "getpeername: %s", sys_errlist[errno]);
rkinit_errmsg(errbuf);
error();
exit(1);
}
if (getsockname(out, (struct sockaddr *)saddr, &addrlen) < 0) {
sprintf(errbuf, "getsockname: %s", sys_errlist[errno]);
rkinit_errmsg(errbuf);
error();
exit(1);
}
}
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