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| author | Roger Dingledine <arma@torproject.org> | 2002-07-22 04:38:36 +0000 |
|---|---|---|
| committer | Roger Dingledine <arma@torproject.org> | 2002-07-22 04:38:36 +0000 |
| commit | c42c2b66409a855bbf749ffc661133f0f7d4660c (patch) | |
| tree | 7972a4532ff804c82f8d65d2f00052ac37ee1852 | |
| parent | cd0760ddda650c147ba21b933cebef5008eb645e (diff) | |
| download | tor-c42c2b66409a855bbf749ffc661133f0f7d4660c.tar tor-c42c2b66409a855bbf749ffc661133f0f7d4660c.tar.gz | |
only choose routers for the onion that are currently connected to us
svn:r72
| -rw-r--r-- | src/or/onion.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/src/or/onion.c b/src/or/onion.c index 34f1db36a..a7240addc 100644 --- a/src/or/onion.c +++ b/src/or/onion.c @@ -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 */ |