jehanne/sys/src/kern/boot/bootauth.c

83 lines
1.6 KiB
C

/* Copyright (C) Charles Forsyth
* See /doc/license/NOTICE.Plan9-9k.txt for details about the licensing.
*/
/* Portions of this file are Copyright (C) 2015-2018 Giacomo Tesio <giacomo@tesio.it>
* See /doc/license/gpl-2.0.txt for details about the licensing.
*/
#include <u.h>
#include <libc.h>
#include <envvars.h>
#include <auth.h>
#include <9P2000.h>
#include "../boot/boot.h"
char *authaddr;
static void glenda(void);
void
authentication(int cpuflag)
{
char *argv[16], **av;
int ac;
if(jehanne_access(factotumPath, AEXEC) < 0 || jehanne_getenv(ENV_USER) != nil){
glenda();
return;
}
/* start agent */
ac = 0;
av = argv;
av[ac++] = "factotum";
if(jehanne_getenv("debugfactotum"))
av[ac++] = "-p";
// av[ac++] = "-d"; /* debug traces */
// av[ac++] = "-D"; /* 9p messages */
if(cpuflag)
av[ac++] = "-S";
else
av[ac++] = "-u";
av[ac++] = "-sfactotum";
if(authaddr != nil){
av[ac++] = "-a";
av[ac++] = authaddr;
}
av[ac] = 0;
switch(jehanne_fork()){
case -1:
fatal("starting factotum");
case 0:
exec(factotumPath, (const char**)av);
fatal("execing factotum");
default:
break;
}
/* wait for agent to really be there */
while(jehanne_access("/mnt/factotum", AEXIST) < 0)
jehanne_sleep(250);
if(cpuflag)
return;
}
static void
glenda(void)
{
int fd;
char *s;
s = jehanne_getenv(ENV_USER);
if(s == nil)
s = "glenda";
fd = open("#c/hostowner", OWRITE);
if(fd >= 0){
if(write(fd, s, jehanne_strlen(s)) != jehanne_strlen(s))
jehanne_fprint(2, "setting #c/hostowner to %s: %r\n", s);
close(fd);
}
jehanne_fprint(2, "Set hostowner to %s\n", s);
}