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implement Init;
#
# init program for Inferno 4thEd demo box
#
include "sys.m";
sys: Sys;
FD, Connection, Dir: import sys;
include "draw.m";
include "keyring.m";
kr: Keyring;
include "security.m";
auth: Auth;
include "dhcp.m";
dhcpclient: Dhcpclient;
Bootconf: import dhcpclient;
I4EBOOT: con "/lib/boot.sh";
Init: module
{
init: fn();
};
Command: module
{
init: fn(ctxt: ref Draw->Context, argv: list of string);
};
Bootpreadlen: con 128;
init()
{
sys = load Sys Sys->PATH;
kr = load Keyring Keyring->PATH;
auth = load Auth Auth->PATH;
if(auth != nil)
auth->init();
sys->print("**\n** Inferno\n** Vita Nuova\n**\n");
sys->print("Setup boot net services ...\n");
#
# Setup what we need to call a server and
# Authenticate
#
dobind("#l", "/net", Sys->MREPL);
dobind("#I", "/net", Sys->MAFTER);
dobind("#c", "/dev", Sys->MAFTER);
fd := sys->open("/net/ipifc/clone", sys->OWRITE);
if(fd == nil)
fail(sys->sprint("iopen /net/ipifc/clone: %r"));
if(sys->fprint(fd, "bind ether /net/ether0") < 0)
fail(sys->sprint("could not bind interface: %r"));
fsip: string;
dhcpclient = load Dhcpclient Dhcpclient->PATH;
if(dhcpclient == nil)
fail(sys->sprint("can't load dhcpclient: %r"));
sys->print("dhcp...");
dhcpclient->init();
(cfg, nil, e) := dhcpclient->dhcp("/net", fd, "/net/ether0/addr", nil, nil);
if(e != nil)
fail(sys->sprint("dhcp: %s", e));
fsip = cfg.getip(Dhcpclient->OP9fs);
if(fsip == nil)
fail("server address not in bootp/dhcp reply");
dhcpclient = nil;
infd := sys->open("/dev/cons", Sys->OREAD);
if(infd == nil)
sys->print("warning: no kbd\n");
err := rootfs(fsip);
if(err != nil)
fail(err);
#
# default namespace
#
dobind("#c", "/dev", Sys->MREPL); # console
dobind("#p", "/prog", Sys->MREPL); # prog device
sys->bind("#d", "/fd", Sys->MREPL);
sys->pctl(Sys->NEWENV, nil);
dobind("#e", "/env", Sys->MREPL|Sys->MCREATE); # env device
sys->print("clock...\n");
setclock();
sys->print("boot...\n");
sys->pctl(Sys->NEWFD, 0::1::2::nil);
done := chan of string;
spawn boot(done);
err = <- done;
if(err != nil)
fail("boot script failed: "+err);
fail("boot script exit");
}
rootfs(server: string): string
{
ok: int;
c: Connection;
sys->print("readauthinfo...\n");
ai := kr->readauthinfo("/keydb/mutual");
if(ai == nil)
return sys->sprint("readauthinfo /keydb/mutual failed: %r");
addr := "tcp!" + server + "!9999";
for(gap := 3;; gap *= 2){
sys->print("Connect (%s)...", addr);
(ok, c) = sys->dial(addr, nil);
if(ok != -1)
break;
sys->print("failed: %r\n");
if(gap > 60)
gap = 60;
sys->sleep(gap*1000);
}
sys->print("\nConnected ...");
if(kr != nil && auth != nil){
err: string;
sys->print("Authenticate ...");
(c.dfd, err) = auth->client("none", ai, c.dfd);
if(c.dfd == nil)
return sys->sprint("authentication failed: %s", err);
}
sys->print("mount ...");
c.cfd = nil;
sys->pctl(Sys->NEWNS, nil);
if(sys->mount(c.dfd, nil, "/", sys->MREPL, "") < 0) # TO DO: would be better to mount behind
return sys->sprint("mount failed: %r");
sys->chdir("/");
return nil;
}
boot(done: chan of string)
{
{
shell := load Command "/dis/sh.dis";
if(shell == nil){
done <-= sys->sprint("load /dis/sh.dis: %r");
exit;
}
shell->init(nil, "/dis/sh.dis"::I4EBOOT::nil);
} exception e {
"*" =>
done <-= e;
exit;
}
done <-= nil;
}
setclock()
{
(ok, dir) := sys->stat("/");
if(ok < 0){
sys->print("stat /: %r");
return;
}
fd := sys->open("/dev/time", sys->OWRITE);
if(fd == nil){
sys->print("open /dev/time: %r");
return;
}
# Time is kept as microsecs, atime is in secs
b := array of byte sys->sprint("%d000000", dir.atime);
if(sys->write(fd, b, len b) != len b)
sys->print("write /dev/time: %r");
}
#
# Bind wrapper which reports errors
#
dobind(f, t: string, flags: int)
{
if(sys->bind(f, t, flags) < 0)
sys->print("bind(%s, %s, %d) failed: %r\n", f, t, flags);
}
fail(msg: string)
{
sys->print("%s\n", msg);
sys->bind("/", "#//n/remote", Sys->MREPL);
sys->bind("#//", "/", Sys->MREPL);
shell := load Command "#//dis/sh.dis";
if(shell == nil){
sys->print("cannot load shell: %r\n");
exit;
}
shell->init(nil, "/dis/sh.dis"::"-i"::nil);
exit;
}
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