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Bugfix for trackhostexits: write down the fingerprint of the chosen exit,

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not its nickname, because the chosen exit might not be verified.


svn:r5499
This commit is contained in:
Roger Dingledine 2005-12-05 00:15:42 +00:00
parent 40cbe550f3
commit 26b49dbc09
1 changed files with 8 additions and 4 deletions
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12
src/or/circuituse.c
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@ -1030,6 +1030,7 @@ consider_recording_trackhost(connection_t *conn, circuit_t *circ)
or_options_t *options = get_options(); or_options_t *options = get_options();
size_t len; size_t len;
char *new_address; char *new_address;
char fp[HEX_DIGEST_LEN+1];
/* Search the addressmap for this conn's destination. */ /* Search the addressmap for this conn's destination. */
/* If he's not in the address map.. */ /* If he's not in the address map.. */
@ -1054,16 +1055,19 @@ consider_recording_trackhost(connection_t *conn, circuit_t *circ)
if (!found_needle || !circ->build_state->chosen_exit) if (!found_needle || !circ->build_state->chosen_exit)
return; return;
/* write down the fingerprint of the chosen exit, not the nickname,
* because the chosen exit might not be verified. */
base16_encode(fp, sizeof(fp),
circ->build_state->chosen_exit->identity_digest, DIGEST_LEN);
/* Add this exit/hostname pair to the addressmap. */ /* Add this exit/hostname pair to the addressmap. */
len = strlen(conn->socks_request->address) + 1 /* '.' */ + len = strlen(conn->socks_request->address) + 1 /* '.' */ +
strlen(circ->build_state->chosen_exit->nickname) + 1 /* '.' */ + strlen(fp) + 1 /* '.' */ +
strlen("exit") + 1 /* '\0' */; strlen("exit") + 1 /* '\0' */;
new_address = tor_malloc(len); new_address = tor_malloc(len);
//XXX need to use $key not nickname
tor_snprintf(new_address, len, "%s.%s.exit", tor_snprintf(new_address, len, "%s.%s.exit",
conn->socks_request->address, conn->socks_request->address, fp);
circ->build_state->chosen_exit->nickname);
addressmap_register(conn->socks_request->address, new_address, addressmap_register(conn->socks_request->address, new_address,
time(NULL) + options->TrackHostExitsExpire); time(NULL) + options->TrackHostExitsExpire);