/*
* associate an address with the interface. This wipes out any previous
* addresses. This is a macro that means, remove all the old interfaces
* and add a new one.
*/
static char*
ipifcconnect(Conv* c, char **argv, int argc)
{
Proc *up = externup();
char *err;
Ipifc *ifc;
ifc = (Ipifc*)c->ptcl;
if(ifc->medium == nil)
return "ipifc not yet bound to device";
if(waserror()){
wunlock(ifc);
nexterror();
}
wlock(ifc);
while(ifc->lifc){
err = ipifcremlifc(ifc, ifc->lifc);
if(err)
error(err);
}
wunlock(ifc);
poperror();
err = ipifcadd(ifc, argv, argc, 0, nil);
if(err)
return err;
Fsconnected(c, nil);
return nil;
}
/*
* associate an address with the interface. This wipes out any previous
* addresses. This is a macro that means, remove all the old interfaces
* and add a new one.
*/
static char *ipifcconnect(struct conv *c, char **argv, int argc)
{
ERRSTACK(1);
char *err;
struct Ipifc *ifc;
ifc = (struct Ipifc *)c->ptcl;
if (ifc->m == NULL)
return "ipifc not yet bound to device";
if (waserror()) {
wunlock(&ifc->rwlock);
nexterror();
}
wlock(&ifc->rwlock);
while (ifc->lifc) {
err = ipifcremlifc(ifc, ifc->lifc);
if (err)
error(err);
}
wunlock(&ifc->rwlock);
poperror();
err = ipifcadd(ifc, argv, argc, 0, NULL);
if (err)
return err;
Fsconnected(c, NULL);
return NULL;
}
static char*
espconnect(Conv *c, char **argv, int argc)
{
char *p, *pp, *e = nil;
uint32_t spi;
Espcb *ecb = (Espcb*)c->ptcl;
switch(argc) {
default:
e = "bad args to connect";
break;
case 2:
p = strchr(argv[1], '!');
if(p == nil){
e = "malformed address";
break;
}
*p++ = 0;
if (parseip(c->raddr, argv[1]) == -1) {
e = Ebadip;
break;
}
findlocalip(c->p->f, c->laddr, c->raddr);
ecb->incoming = 0;
ecb->seq = 0;
if(strcmp(p, "*") == 0) {
qlock(c->p);
for(;;) {
spi = nrand(1<<16) + 256;
if(convlookup(c->p, spi) == nil)
break;
}
qunlock(c->p);
ecb->spi = spi;
ecb->incoming = 1;
qhangup(c->wq, nil);
} else {
spi = strtoul(p, &pp, 10);
if(pp == p) {
e = "malformed address";
break;
}
ecb->spi = spi;
qhangup(c->rq, nil);
}
nullespinit(ecb, "null", nil, 0);
nullahinit(ecb, "null", nil, 0);
}
Fsconnected(c, e);
return e;
}
static char *udpannounce(struct conv *c, char **argv, int argc)
{
char *e;
Udppriv *upriv;
upriv = c->p->priv;
e = Fsstdannounce(c, argv, argc);
if (e != NULL)
return e;
Fsconnected(c, NULL);
iphtadd(&upriv->ht, c);
return NULL;
}
static char*
rudpconnect(Conv *c, char **argv, int argc)
{
char *e;
Rudppriv *upriv;
upriv = c->p->priv;
rudpstartackproc(c->p);
e = Fsstdconnect(c, argv, argc);
Fsconnected(c, e);
iphtadd(&upriv->ht, c);
return e;
}
static char*
udpannounce(Conv *c, char** argv, int argc)
{
char *e;
Udppriv *upriv;
upriv = c->p->priv;
e = Fsstdannounce(c, argv, argc);
if(e != nil)
return e;
Fsconnected(c, nil);
iphtadd(&upriv->ht, c);
return nil;
}
static char*
greconnect(Conv *c, char **argv, int argc)
{
Proto *p;
char *err;
Conv *tc, **cp, **ecp;
err = Fsstdconnect(c, argv, argc);
if(err != nil)
return err;
/* make sure noone's already connected to this other sys */
p = c->p;
qlock(p);
ecp = &p->conv[p->nc];
for(cp = p->conv; cp < ecp; cp++){
tc = *cp;
if(tc == nil)
break;
if(tc == c)
continue;
if(tc->rport == c->rport && ipcmp(tc->raddr, c->raddr) == 0){
err = "already connected to that addr/proto";
ipmove(c->laddr, IPnoaddr);
ipmove(c->raddr, IPnoaddr);
break;
}
}
qunlock(p);
if(err != nil)
return err;
Fsconnected(c, nil);
return nil;
}