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/*
* The author of this software is Matt Blaze.
* Copyright (c) 1992, 1993, 1994 by AT&T.
* Permission to use, copy, and modify this software without fee
* is hereby granted, provided that this entire notice is included in
* all copies of any software which is or includes a copy or
* modification of this software and in all copies of the supporting
* documentation for such software.
*
* This software is subject to United States export controls.
*
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR AT&T MAKE ANY
* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
* OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
*/
/*
* server adm rpc handlers - ver 1.3.2
*/
#include <sys/types.h>
#include <stdio.h>
#include <rpc/rpc.h>
#include <sys/time.h>
#include <string.h>
#include "admproto.h"
#include "nfsproto.h"
#include "cfs.h"
typedef struct svc_req *SR;
int topinstance = 0;
cfs_adm()
{
}
void *
admproc_null_2_svc(void *a, struct svc_req *r)
{
}
cfsstat *
admproc_attach_2_svc(cfs_attachargs *ap, struct svc_req *rp)
{
static cfsstat ret;
int i;
cfskey tk;
instance *ins;
#ifdef DEBUG
printf("attach: %s %s %d\n",ap->dirname, ap->name, ap->anon);
#endif
if (*ap->dirname != '/') {
ret = CFSERR_BADNAME;
return &ret;
}
if (index(ap->name,'/') != NULL) {
ret = CFSERR_BADNAME;
return &ret;
}
if (already(ap->name)) {
ret=CFSERR_EXIST;
return &ret;
}
become(rp);
copykey(&ap->key,&tk);
if ((ret=verify(ap->dirname,&tk)) != CFS_OK) {
become(NULL);
return &ret;
}
become(NULL);
for (i=topinstance+1; i<NINSTANCES; i++)
if (instances[i] == NULL)
break;
if (i==NINSTANCES) for (i=1; i<topinstance; i++)
if (instances[i] == NULL)
break;
if (i==topinstance) {
ret=CFSERR_IFULL;
return &ret;
}
if ((ins=(instance*)malloc(sizeof(instance)))==NULL) {
ret=CFSERR_IFULL;
return &ret;
}
topinstance=i;
instances[i]=ins;
ins->id=i;
for (i=0; i<HSIZE; i++)
ins->file[i]=NULL;
ins->key.smsize = ap->smsize;
if ((ins->key.primask=(char*) malloc(ins->key.smsize)) == NULL) {
free(ins);
ret = CFSERR_IFULL;
return &ret;
}
if ((ins->key.secmask=(char*) malloc(ins->key.smsize)) == NULL) {
free(ins->key.primask);
free(ins);
ret = CFSERR_IFULL;
return &ret;
}
ins->anon=ap->anon;
sprintf(ins->path,"%s/.",ap->dirname);
strcpy(ins->name,ap->name);
copykey(&ap->key,&ins->key);
genmasks(&ins->key);
ins->uid=ap->uid;
ins->highsec=ap->highsec;
gettimeofday((struct timeval *)&roottime,NULL);
if (ap->expire !=0)
ins->timeout = roottime.seconds + (ap->expire*60);
else
ins->timeout = 0;
ins->access=roottime.seconds;
ins->idle=ap->idle * 60;
ins->dead=0;
bzero((char *)ins->check,8);
bcopy((char *)&roottime,(char *)ins->check,sizeof(roottime));
cipher(&ins->key,ins->check,0);
ret=CFS_OK;
return &ret;
}
already(s)
char *s;
{
int i;
for (i=1; i<NINSTANCES; i++)
if ((instances[i]!=NULL) && !strcmp(instances[i]->name,s))
return 1;
return 0;
}
genmasks(k)
cfskey *k;
{
unsigned int i;
char start[9];
FILE *fp;
for (i=0; i < k->smsize; i+=CFSBLOCK) {
sprintf(start,"0%07x",i/CFSBLOCK);
bcopy(start,&k->primask[i],CFSBLOCK);
mask_cipher(k,&k->primask[i],0);
sprintf(start,"1%07x",i/CFSBLOCK);
bcopy(start,&k->secmask[i],CFSBLOCK);
mask_cipher(k,&k->secmask[i],0);
}
}
cfsstat *
admproc_detach_2_svc(cfs_detachargs *ap, struct svc_req *rp)
{
static cfsstat ret;
int i;
if (strncmp(ap->name,".ANON_",6) == 0) {
i = atoi(&ap->name[6]);
if ((i>0) && (i<NINSTANCES) && (instances[i]!=NULL))
goto found;
}
for (i=1; i<NINSTANCES; i++)
if ((instances[i]!=NULL)&&!strcmp(instances[i]->name,ap->name))
break;
if (i==NINSTANCES) {
ret=CFSERR_NOINS;
return &ret;
}
found:
freeinstance(i);
ret=CFS_OK;
return &ret;
}
/* freeinstance is also called by geth if expired */
freeinstance(i)
int i;
{
int j;
for (j=0; j<HSIZE; j++) {
freelist(instances[i]->file[j]);
instances[i]->file[j]=NULL;
}
bzero((char *)instances[i]->key.primask,instances[i]->key.smsize);
free(instances[i]->key.primask);
bzero((char *)instances[i]->key.secmask,instances[i]->key.smsize);
free(instances[i]->key.secmask);
bzero((char *)instances[i],sizeof(instance));
free(instances[i]);
instances[i]=NULL;
gettimeofday((struct timeval *)&roottime,NULL);
closeall();
}
freelist(f)
cfs_fileid *f;
{
if (f==NULL)
return;
freelist(f->next);
free(f->name);
free(f);
}
verify(path,k)
char *path;
cfs_admkey *k;
{
FILE *fp;
char fn[NFS_MAXPATHLEN];
char buf[9];
int l;
l =snprintf(fn, NFS_MAXPATHLEN, "%s/...",path);
if (l < 0 || l >= NFS_MAXPATHLEN)
return CFSERR_BADNAME;
if ((fp=fopen(fn,"r"))==NULL)
return CFSERR_NODIR;
if (fread(buf,8,1,fp)!=1) {
fclose (fp);
return CFSERR_NODIR;
}
fclose (fp);
cipher(k,buf,1); /* note order here */
mask_cipher(k,buf,0);
cipher(k,buf,1); /* note order here */
if (bcmp(buf,"qua!",4)!=0)
return CFSERR_BADKEY;
return CFS_OK;
}
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