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only choose routers for the onion that are currently connected to us

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svn:r72
This commit is contained in:
Roger Dingledine 2002-07-22 04:38:36 +00:00
parent cd0760ddda
commit c42c2b6640
1 changed files with 10 additions and 7 deletions
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17
src/or/onion.c
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@ -100,8 +100,8 @@ unsigned int *new_route(double cw, routerinfo_t **rarray, size_t rarray_len, siz
unsigned int *route = NULL;
unsigned int oldchoice, choice;
if ( (cw >= 0) && (cw < 1) && (rarray) && (rlen) ) /* valid parameters */
{
assert((cw >= 0) && (cw < 1) && (rarray) && (rlen) ); /* valid parameters */
routelen = chooselen(cw);
if (routelen == -1)
{
@ -109,6 +109,9 @@ unsigned int *new_route(double cw, routerinfo_t **rarray, size_t rarray_len, siz
return NULL;
}
log(LOG_DEBUG,"new_route(): Chosen route length %u.",routelen);
/* FIXME need to figure out how many routers we can actually choose from.
* We can get into an infinite loop if there are too few. */
/* allocate memory for the new route */
route = (unsigned int *)malloc(routelen * sizeof(unsigned int));
@ -132,8 +135,11 @@ unsigned int *new_route(double cw, routerinfo_t **rarray, size_t rarray_len, siz
choice = choice % (rarray_len);
log(LOG_DEBUG,"new_route() : Chosen router %u.",choice);
if (choice == oldchoice ||
(oldchoice < rarray_len && !pkey_cmp(rarray[choice]->pkey, rarray[oldchoice]->pkey))) {
/* same router, or router twin. try again. */
(oldchoice < rarray_len && !pkey_cmp(rarray[choice]->pkey, rarray[oldchoice]->pkey)) ||
!connection_twin_get_by_addr_port(rarray[choice]->addr, rarray[choice]->or_port)) {
/* Same router as last choice, or router twin,
* or no routers with that key are connected to us.
* Try again. */
i--;
continue;
}
@ -143,9 +149,6 @@ unsigned int *new_route(double cw, routerinfo_t **rarray, size_t rarray_len, siz
*rlen = routelen;
return route;
} /* valid parameters */
else /* invalid parameters */
return NULL;
}
/* creates a new onion from route, stores it and its length into bufp and lenp respectively */