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#include "all.h"
#include "io.h"
#include <authsrv.h>
#include <auth.h>
Nvrsafe nvr;
static int gotnvr; /* flag: nvr contains nvram; it could be bad */
char*
nvrgetconfig(void)
{
return conf.confdev;
}
/*
* we shouldn't be writing nvram any more.
* the secstore/config field is now just secstore key.
* we still use authid, authdom and machkey for authentication.
*/
int
nvrcheck(void)
{
uchar csum;
if (readnvram(&nvr, NVread) < 0) {
print("nvrcheck: can't read nvram\n");
return 1;
} else
gotnvr = 1;
print("nvr read\n");
csum = nvcsum(nvr.machkey, sizeof nvr.machkey);
if(csum != nvr.machsum) {
print("\n\n ** NVR key checksum is incorrect **\n");
print(" ** set password to allow attaches **\n\n");
memset(nvr.machkey, 0, sizeof nvr.machkey);
return 1;
}
return 0;
}
int
nvrsetconfig(char* word)
{
/* config block is on device `word' */
USED(word);
return 0;
}
int
conslock(void)
{
char *ln;
char nkey1[DESKEYLEN];
static char zeroes[DESKEYLEN];
if(memcmp(nvr.machkey, zeroes, DESKEYLEN) == 0) {
print("no password set\n");
return 0;
}
for(;;) {
print("%s password:", service);
/* could turn off echo here */
if ((ln = Brdline(&bin, '\n')) == nil)
return 0;
ln[Blinelen(&bin)-1] = '\0';
/* could turn on echo here */
memset(nkey1, 0, DESKEYLEN);
passtokey(nkey1, ln);
if(memcmp(nkey1, nvr.machkey, DESKEYLEN) == 0) {
prdate();
break;
}
print("Bad password\n");
delay(1000);
}
return 1;
}
/* authentication structure */
struct Auth
{
int inuse;
char uname[NAMELEN]; /* requestor's remote user name */
char aname[NAMELEN]; /* requested aname */
Userid uid; /* uid decided on */
AuthRpc *rpc;
};
Auth* auths;
Lock authlock;
void
authinit(void)
{
auths = malloc(conf.nauth * sizeof(*auths));
}
static int
failure(Auth *s, char *why)
{
AuthRpc *rpc;
if(why && *why)print("authentication failed: %s: %r\n", why);
s->uid = -1;
if(rpc = s->rpc){
s->rpc = 0;
auth_freerpc(rpc);
}
return -1;
}
Auth*
authnew(char *uname, char *aname)
{
static int si = 0;
int afd, i, nwrap;
Auth *s;
i = si;
nwrap = 0;
for(;;){
if(i < 0 || i >= conf.nauth){
if(++nwrap > 1)
return nil;
i = 0;
}
s = &auths[i++];
if(s->inuse)
continue;
lock(&authlock);
if(s->inuse == 0){
s->inuse = 1;
strncpy(s->uname, uname, NAMELEN-1);
strncpy(s->aname, aname, NAMELEN-1);
failure(s, "");
si = i;
unlock(&authlock);
break;
}
unlock(&authlock);
}
if((afd = open("/mnt/factotum/rpc", ORDWR)) < 0){
failure(s, "open /mnt/factotum/rpc");
return s;
}
if((s->rpc = auth_allocrpc(afd)) == 0){
failure(s, "auth_allocrpc");
close(afd);
return s;
}
if(auth_rpc(s->rpc, "start", "proto=p9any role=server", 23) != ARok)
failure(s, "auth_rpc: start");
return s;
}
void
authfree(Auth *s)
{
if(s){
failure(s, "");
s->inuse = 0;
}
}
int
authread(File* file, uchar* data, int n)
{
AuthInfo *ai;
Auth *s;
s = file->auth;
if(s == nil)
return -1;
if(s->rpc == nil)
return -1;
switch(auth_rpc(s->rpc, "read", nil, 0)){
default:
failure(s, "auth_rpc: read");
break;
case ARdone:
if((ai = auth_getinfo(s->rpc)) == nil){
failure(s, "auth_getinfo failed");
break;
}
if(ai->cuid == nil || *ai->cuid == '\0'){
failure(s, "auth with no cuid");
auth_freeAI(ai);
break;
}
failure(s, "");
s->uid = strtouid(ai->cuid);
auth_freeAI(ai);
return 0;
case ARok:
if(n < s->rpc->narg)
break;
memmove(data, s->rpc->arg, s->rpc->narg);
return s->rpc->narg;
}
return -1;
}
int
authwrite(File* file, uchar *data, int n)
{
Auth *s;
s = file->auth;
if(s == nil)
return -1;
if(s->rpc == nil)
return -1;
if(auth_rpc(s->rpc, "write", data, n) != ARok){
failure(s, "auth_rpc: write");
return -1;
}
return n;
}
int
authuid(Auth* s)
{
return s->uid;
}
char*
authaname(Auth* s)
{
return s->aname;
}
char*
authuname(Auth* s)
{
return s->uname;
}
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