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https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-24 12:23:32 +01:00
Refactor find_first_by_keyword into one variant that can return NULL and one that can't.
This makes it easier for us to avoid errors where we we forgot to list a keyword as mandatory, and easier for Coverity to detect cases like this too. svn:r17595
This commit is contained in:
Nick Mathewson
parent
f3b52e331e
commit
bb02f919f1
@ -449,8 +449,13 @@ static int router_get_hash_impl(const char *s, char *digest,
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char end_char);
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static void token_free(directory_token_t *tok);
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static smartlist_t *find_all_exitpolicy(smartlist_t *s);
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static directory_token_t *find_first_by_keyword(smartlist_t *s,
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static directory_token_t *_find_by_keyword(smartlist_t *s,
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directory_keyword keyword,
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const char *keyword_str);
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#define find_by_keyword(s, keyword) _find_by_keyword((s), (keyword), #keyword)
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static directory_token_t *find_opt_by_keyword(smartlist_t *s,
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directory_keyword keyword);
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#define TS_ANNOTATIONS_OK 1
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#define TS_NOCHECK 2
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#define TS_NO_NEW_ANNOTATIONS 4
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@ -729,8 +734,7 @@ router_parse_directory(const char *str)
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log_warn(LD_DIR, "Error tokenizing directory"); goto err;
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}
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tok = find_first_by_keyword(tokens, K_PUBLISHED);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_PUBLISHED);
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tor_assert(tok->n_args == 1);
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if (parse_iso_time(tok->args[0], &published_on) < 0) {
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@ -790,13 +794,12 @@ router_parse_runningrouters(const char *str)
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goto err;
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}
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tok = find_first_by_keyword(tokens, K_PUBLISHED);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_PUBLISHED);
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tor_assert(tok->n_args == 1);
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if (parse_iso_time(tok->args[0], &published_on) < 0) {
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goto err;
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}
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if (!(tok = find_first_by_keyword(tokens, K_DIRECTORY_SIGNATURE))) {
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if (!(tok = find_opt_by_keyword(tokens, K_DIRECTORY_SIGNATURE))) {
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log_warn(LD_DIR, "Missing signature on running-routers");
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goto err;
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}
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@ -1182,7 +1185,7 @@ router_parse_entry_from_string(const char *s, const char *end,
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goto err;
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}
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tok = find_first_by_keyword(tokens, K_ROUTER);
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tok = find_by_keyword(tokens, K_ROUTER);
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tor_assert(tok->n_args >= 5);
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router = tor_malloc_zero(sizeof(routerinfo_t));
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@ -1238,8 +1241,8 @@ router_parse_entry_from_string(const char *s, const char *end,
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goto err;
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}
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tok = find_first_by_keyword(tokens, K_BANDWIDTH);
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tor_assert(tok && tok->n_args >= 3);
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tok = find_by_keyword(tokens, K_BANDWIDTH);
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tor_assert(tok->n_args >= 3);
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router->bandwidthrate = (int)
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tor_parse_long(tok->args[0],10,1,INT_MAX,&ok,NULL);
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@ -1261,7 +1264,7 @@ router_parse_entry_from_string(const char *s, const char *end,
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goto err;
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}
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if ((tok = find_first_by_keyword(tokens, A_PURPOSE))) {
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if ((tok = find_opt_by_keyword(tokens, A_PURPOSE))) {
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tor_assert(tok->n_args != 0);
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router->purpose = router_purpose_from_string(tok->args[0]);
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} else {
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@ -1270,7 +1273,7 @@ router_parse_entry_from_string(const char *s, const char *end,
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router->cache_info.send_unencrypted =
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(router->purpose == ROUTER_PURPOSE_GENERAL) ? 1 : 0;
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if ((tok = find_first_by_keyword(tokens, K_UPTIME))) {
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if ((tok = find_opt_by_keyword(tokens, K_UPTIME))) {
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tor_assert(tok->n_args >= 1);
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router->uptime = tor_parse_long(tok->args[0],10,0,LONG_MAX,&ok,NULL);
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if (!ok) {
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@ -1279,25 +1282,22 @@ router_parse_entry_from_string(const char *s, const char *end,
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}
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}
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if ((tok = find_first_by_keyword(tokens, K_HIBERNATING))) {
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if ((tok = find_opt_by_keyword(tokens, K_HIBERNATING))) {
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tor_assert(tok->n_args >= 1);
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router->is_hibernating
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= (tor_parse_long(tok->args[0],10,0,LONG_MAX,NULL,NULL) != 0);
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}
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tok = find_first_by_keyword(tokens, K_PUBLISHED);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_PUBLISHED);
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tor_assert(tok->n_args == 1);
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if (parse_iso_time(tok->args[0], &router->cache_info.published_on) < 0)
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goto err;
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tok = find_first_by_keyword(tokens, K_ONION_KEY);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_ONION_KEY);
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router->onion_pkey = tok->key;
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tok->key = NULL; /* Prevent free */
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tok = find_first_by_keyword(tokens, K_SIGNING_KEY);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_SIGNING_KEY);
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router->identity_pkey = tok->key;
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tok->key = NULL; /* Prevent free */
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if (crypto_pk_get_digest(router->identity_pkey,
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@ -1305,7 +1305,7 @@ router_parse_entry_from_string(const char *s, const char *end,
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log_warn(LD_DIR, "Couldn't calculate key digest"); goto err;
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}
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if ((tok = find_first_by_keyword(tokens, K_FINGERPRINT))) {
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if ((tok = find_opt_by_keyword(tokens, K_FINGERPRINT))) {
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/* If there's a fingerprint line, it must match the identity digest. */
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char d[DIGEST_LEN];
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tor_assert(tok->n_args == 1);
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@ -1322,15 +1322,15 @@ router_parse_entry_from_string(const char *s, const char *end,
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}
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}
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if ((tok = find_first_by_keyword(tokens, K_PLATFORM))) {
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if ((tok = find_opt_by_keyword(tokens, K_PLATFORM))) {
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router->platform = tor_strdup(tok->args[0]);
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}
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if ((tok = find_first_by_keyword(tokens, K_CONTACT))) {
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if ((tok = find_opt_by_keyword(tokens, K_CONTACT))) {
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router->contact_info = tor_strdup(tok->args[0]);
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}
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if ((tok = find_first_by_keyword(tokens, K_EVENTDNS))) {
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if ((tok = find_opt_by_keyword(tokens, K_EVENTDNS))) {
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router->has_old_dnsworkers = tok->n_args && !strcmp(tok->args[0], "0");
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} else if (router->platform) {
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if (! tor_version_as_new_as(router->platform, "0.1.2.2-alpha"))
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@ -1349,7 +1349,7 @@ router_parse_entry_from_string(const char *s, const char *end,
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});
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policy_expand_private(&router->exit_policy);
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if ((tok = find_first_by_keyword(tokens, K_FAMILY)) && tok->n_args) {
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if ((tok = find_opt_by_keyword(tokens, K_FAMILY)) && tok->n_args) {
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int i;
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router->declared_family = smartlist_create();
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for (i=0;i<tok->n_args;++i) {
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@ -1362,13 +1362,13 @@ router_parse_entry_from_string(const char *s, const char *end,
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}
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}
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if ((tok = find_first_by_keyword(tokens, K_CACHES_EXTRA_INFO)))
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if ((tok = find_opt_by_keyword(tokens, K_CACHES_EXTRA_INFO)))
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router->caches_extra_info = 1;
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if ((tok = find_first_by_keyword(tokens, K_ALLOW_SINGLE_HOP_EXITS)))
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if ((tok = find_opt_by_keyword(tokens, K_ALLOW_SINGLE_HOP_EXITS)))
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router->allow_single_hop_exits = 1;
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if ((tok = find_first_by_keyword(tokens, K_EXTRA_INFO_DIGEST))) {
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if ((tok = find_opt_by_keyword(tokens, K_EXTRA_INFO_DIGEST))) {
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tor_assert(tok->n_args >= 1);
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if (strlen(tok->args[0]) == HEX_DIGEST_LEN) {
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base16_decode(router->cache_info.extra_info_digest,
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@ -1378,12 +1378,11 @@ router_parse_entry_from_string(const char *s, const char *end,
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}
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}
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if ((tok = find_first_by_keyword(tokens, K_HIDDEN_SERVICE_DIR))) {
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if ((tok = find_opt_by_keyword(tokens, K_HIDDEN_SERVICE_DIR))) {
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router->wants_to_be_hs_dir = 1;
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}
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tok = find_first_by_keyword(tokens, K_ROUTER_SIGNATURE);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_ROUTER_SIGNATURE);
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note_crypto_pk_op(VERIFY_RTR);
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#ifdef COUNT_DISTINCT_DIGESTS
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if (!verified_digests)
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@ -1494,8 +1493,7 @@ extrainfo_parse_entry_from_string(const char *s, const char *end,
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goto err;
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}
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tok = find_first_by_keyword(tokens, K_PUBLISHED);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_PUBLISHED);
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if (parse_iso_time(tok->args[0], &extrainfo->cache_info.published_on)) {
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log_warn(LD_DIR,"Invalid published time %s on \"extra-info\"",
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escaped(tok->args[0]));
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@ -1508,8 +1506,7 @@ extrainfo_parse_entry_from_string(const char *s, const char *end,
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key = router->identity_pkey;
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}
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tok = find_first_by_keyword(tokens, K_ROUTER_SIGNATURE);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_ROUTER_SIGNATURE);
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if (strcmp(tok->object_type, "SIGNATURE") ||
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tok->object_size < 128 || tok->object_size > 512) {
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log_warn(LD_DIR, "Bad object type or length on extra-info signature");
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@ -1597,20 +1594,20 @@ authority_cert_parse_from_string(const char *s, const char **end_of_string)
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cert = tor_malloc_zero(sizeof(authority_cert_t));
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memcpy(cert->cache_info.signed_descriptor_digest, digest, DIGEST_LEN);
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tok = find_first_by_keyword(tokens, K_DIR_SIGNING_KEY);
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tor_assert(tok && tok->key);
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tok = find_by_keyword(tokens, K_DIR_SIGNING_KEY);
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tor_assert(tok->key);
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cert->signing_key = tok->key;
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tok->key = NULL;
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if (crypto_pk_get_digest(cert->signing_key, cert->signing_key_digest))
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goto err;
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tok = find_first_by_keyword(tokens, K_DIR_IDENTITY_KEY);
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tor_assert(tok && tok->key);
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tok = find_by_keyword(tokens, K_DIR_IDENTITY_KEY);
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tor_assert(tok->key);
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cert->identity_key = tok->key;
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tok->key = NULL;
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tok = find_first_by_keyword(tokens, K_FINGERPRINT);
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tor_assert(tok && tok->n_args);
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tok = find_by_keyword(tokens, K_FINGERPRINT);
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tor_assert(tok->n_args > 0);
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if (base16_decode(fp_declared, DIGEST_LEN, tok->args[0],
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strlen(tok->args[0]))) {
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log_warn(LD_DIR, "Couldn't decode key certificate fingerprint %s",
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@ -1628,7 +1625,7 @@ authority_cert_parse_from_string(const char *s, const char **end_of_string)
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goto err;
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}
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tok = find_first_by_keyword(tokens, K_DIR_ADDRESS);
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tok = find_opt_by_keyword(tokens, K_DIR_ADDRESS);
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if (tok) {
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tor_assert(tok->n_args != 0);
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if (parse_addr_port(LOG_WARN, tok->args[0], NULL, &cert->addr,
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@ -1638,13 +1635,11 @@ authority_cert_parse_from_string(const char *s, const char **end_of_string)
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}
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}
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tok = find_first_by_keyword(tokens, K_DIR_KEY_PUBLISHED);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_DIR_KEY_PUBLISHED);
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if (parse_iso_time(tok->args[0], &cert->cache_info.published_on) < 0) {
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goto err;
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}
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tok = find_first_by_keyword(tokens, K_DIR_KEY_EXPIRES);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_DIR_KEY_EXPIRES);
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if (parse_iso_time(tok->args[0], &cert->expires) < 0) {
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goto err;
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}
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@ -1763,8 +1758,7 @@ routerstatus_parse_entry_from_string(memarea_t *area,
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log_warn(LD_DIR, "Impossibly short router status");
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goto err;
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}
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tok = find_first_by_keyword(tokens, K_R);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_R);
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tor_assert(tok->n_args >= 8);
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if (vote_rs) {
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rs = &vote_rs->status;
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@ -1810,7 +1804,7 @@ routerstatus_parse_entry_from_string(memarea_t *area,
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rs->or_port =(uint16_t) tor_parse_long(tok->args[6],10,0,65535,NULL,NULL);
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rs->dir_port = (uint16_t) tor_parse_long(tok->args[7],10,0,65535,NULL,NULL);
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tok = find_first_by_keyword(tokens, K_S);
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tok = find_opt_by_keyword(tokens, K_S);
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if (tok && vote) {
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int i;
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vote_rs->flags = 0;
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@ -1858,7 +1852,7 @@ routerstatus_parse_entry_from_string(memarea_t *area,
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}
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}
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}
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if ((tok = find_first_by_keyword(tokens, K_V))) {
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if ((tok = find_opt_by_keyword(tokens, K_V))) {
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tor_assert(tok->n_args == 1);
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rs->version_known = 1;
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if (strcmpstart(tok->args[0], "Tor ")) {
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@ -1881,7 +1875,7 @@ routerstatus_parse_entry_from_string(memarea_t *area,
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}
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/* handle weighting/bandwidth info */
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if ((tok = find_first_by_keyword(tokens, K_W))) {
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if ((tok = find_opt_by_keyword(tokens, K_W))) {
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int i;
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for (i=0; i < tok->n_args; ++i) {
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if (!strcmpstart(tok->args[i], "Bandwidth=")) {
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@ -1898,7 +1892,7 @@ routerstatus_parse_entry_from_string(memarea_t *area,
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}
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/* parse exit policy summaries */
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if ((tok = find_first_by_keyword(tokens, K_P))) {
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if ((tok = find_opt_by_keyword(tokens, K_P))) {
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tor_assert(tok->n_args == 1);
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if (strcmpstart(tok->args[0], "accept ") &&
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strcmpstart(tok->args[0], "reject ")) {
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@ -1985,16 +1979,15 @@ networkstatus_v2_parse_from_string(const char *s)
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ns = tor_malloc_zero(sizeof(networkstatus_v2_t));
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memcpy(ns->networkstatus_digest, ns_digest, DIGEST_LEN);
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tok = find_first_by_keyword(tokens, K_NETWORK_STATUS_VERSION);
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tor_assert(tok && tok->n_args >= 1);
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tok = find_by_keyword(tokens, K_NETWORK_STATUS_VERSION);
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tor_assert(tok->n_args >= 1);
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if (strcmp(tok->args[0], "2")) {
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log_warn(LD_BUG, "Got a non-v2 networkstatus. Version was "
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"%s", escaped(tok->args[0]));
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goto err;
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}
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tok = find_first_by_keyword(tokens, K_DIR_SOURCE);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_DIR_SOURCE);
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tor_assert(tok->n_args >= 3);
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ns->source_address = tor_strdup(tok->args[0]);
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if (tor_inet_aton(tok->args[1], &in) == 0) {
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@ -2010,8 +2003,7 @@ networkstatus_v2_parse_from_string(const char *s)
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goto err;
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}
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tok = find_first_by_keyword(tokens, K_FINGERPRINT);
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tor_assert(tok);
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tok = find_by_keyword(tokens, K_FINGERPRINT);
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tor_assert(tok->n_args != 0);
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if (base16_decode(ns->identity_digest, DIGEST_LEN, tok->args[0],
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strlen(tok->args[0]))) {
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@ -2020,13 +2012,13 @@ networkstatus_v2_parse_from_string(const char *s)
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goto err;
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}
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if ((tok = find_first_by_keyword(tokens, K_CONTACT))) {
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if ((tok = find_opt_by_keyword(tokens, K_CONTACT))) {
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tor_assert(tok->n_args != 0);
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ns->contact = tor_strdup(tok->args[0]);
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}
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tok = find_first_by_keyword(tokens, K_DIR_SIGNING_KEY);
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tor_assert(tok && tok->key);
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tok = find_by_keyword(tokens, K_DIR_SIGNING_KEY);
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tor_assert(tok->key);
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ns->signing_key = tok->key;
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tok->key = NULL;
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@ -2040,7 +2032,7 @@ networkstatus_v2_parse_from_string(const char *s)
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goto err;
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}
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if ((tok = find_first_by_keyword(tokens, K_DIR_OPTIONS))) {
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if ((tok = find_opt_by_keyword(tokens, K_DIR_OPTIONS))) {
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for (i=0; i < tok->n_args; ++i) {
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if (!strcmp(tok->args[i], "Names"))
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ns->binds_names = 1;
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@ -2054,13 +2046,13 @@ networkstatus_v2_parse_from_string(const char *s)
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}
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if (ns->recommends_versions) {
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if (!(tok = find_first_by_keyword(tokens, K_CLIENT_VERSIONS))) {
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if (!(tok = find_opt_by_keyword(tokens, K_CLIENT_VERSIONS))) {
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log_warn(LD_DIR, "Missing client-versions on versioning directory");
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goto err;
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}
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ns->client_versions = tor_strdup(tok->args[0]);
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if (!(tok = find_first_by_keyword(tokens, K_SERVER_VERSIONS)) ||
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if (!(tok = find_opt_by_keyword(tokens, K_SERVER_VERSIONS)) ||
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tok->n_args<1) {
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log_warn(LD_DIR, "Missing server-versions on versioning directory");
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goto err;
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@ -2068,8 +2060,7 @@ networkstatus_v2_parse_from_string(const char *s)
|
||||
ns->server_versions = tor_strdup(tok->args[0]);
|
||||
}
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_PUBLISHED);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, K_PUBLISHED);
|
||||
tor_assert(tok->n_args == 1);
|
||||
if (parse_iso_time(tok->args[0], &ns->published_on) < 0) {
|
||||
goto err;
|
||||
@ -2174,8 +2165,7 @@ networkstatus_parse_vote_from_string(const char *s, const char **eos_out,
|
||||
goto err;
|
||||
}
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_VOTE_STATUS);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, K_VOTE_STATUS);
|
||||
tor_assert(tok->n_args != 0);
|
||||
if (!strcmp(tok->args[0], "vote")) {
|
||||
ns->type = NS_TYPE_VOTE;
|
||||
@ -2194,12 +2184,12 @@ networkstatus_parse_vote_from_string(const char *s, const char **eos_out,
|
||||
}
|
||||
|
||||
if (ns->type == NS_TYPE_VOTE || ns->type == NS_TYPE_OPINION) {
|
||||
tok = find_first_by_keyword(tokens, K_PUBLISHED);
|
||||
tok = find_by_keyword(tokens, K_PUBLISHED);
|
||||
if (parse_iso_time(tok->args[0], &ns->published))
|
||||
goto err;
|
||||
|
||||
ns->supported_methods = smartlist_create();
|
||||
tok = find_first_by_keyword(tokens, K_CONSENSUS_METHODS);
|
||||
tok = find_opt_by_keyword(tokens, K_CONSENSUS_METHODS);
|
||||
if (tok) {
|
||||
for (i=0; i < tok->n_args; ++i)
|
||||
smartlist_add(ns->supported_methods, tor_strdup(tok->args[i]));
|
||||
@ -2207,7 +2197,7 @@ networkstatus_parse_vote_from_string(const char *s, const char **eos_out,
|
||||
smartlist_add(ns->supported_methods, tor_strdup("1"));
|
||||
}
|
||||
} else {
|
||||
tok = find_first_by_keyword(tokens, K_CONSENSUS_METHOD);
|
||||
tok = find_opt_by_keyword(tokens, K_CONSENSUS_METHOD);
|
||||
if (tok) {
|
||||
ns->consensus_method = (int)tor_parse_long(tok->args[0], 10, 1, INT_MAX,
|
||||
&ok, NULL);
|
||||
@ -2218,19 +2208,19 @@ networkstatus_parse_vote_from_string(const char *s, const char **eos_out,
|
||||
}
|
||||
}
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_VALID_AFTER);
|
||||
tok = find_by_keyword(tokens, K_VALID_AFTER);
|
||||
if (parse_iso_time(tok->args[0], &ns->valid_after))
|
||||
goto err;
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_FRESH_UNTIL);
|
||||
tok = find_by_keyword(tokens, K_FRESH_UNTIL);
|
||||
if (parse_iso_time(tok->args[0], &ns->fresh_until))
|
||||
goto err;
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_VALID_UNTIL);
|
||||
tok = find_by_keyword(tokens, K_VALID_UNTIL);
|
||||
if (parse_iso_time(tok->args[0], &ns->valid_until))
|
||||
goto err;
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_VOTING_DELAY);
|
||||
tok = find_by_keyword(tokens, K_VOTING_DELAY);
|
||||
tor_assert(tok->n_args >= 2);
|
||||
ns->vote_seconds =
|
||||
(int) tor_parse_long(tok->args[0], 10, 0, INT_MAX, &ok, NULL);
|
||||
@ -2257,14 +2247,14 @@ networkstatus_parse_vote_from_string(const char *s, const char **eos_out,
|
||||
goto err;
|
||||
}
|
||||
|
||||
if ((tok = find_first_by_keyword(tokens, K_CLIENT_VERSIONS))) {
|
||||
if ((tok = find_opt_by_keyword(tokens, K_CLIENT_VERSIONS))) {
|
||||
ns->client_versions = tor_strdup(tok->args[0]);
|
||||
}
|
||||
if ((tok = find_first_by_keyword(tokens, K_SERVER_VERSIONS))) {
|
||||
if ((tok = find_opt_by_keyword(tokens, K_SERVER_VERSIONS))) {
|
||||
ns->server_versions = tor_strdup(tok->args[0]);
|
||||
}
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_KNOWN_FLAGS);
|
||||
tok = find_by_keyword(tokens, K_KNOWN_FLAGS);
|
||||
ns->known_flags = smartlist_create();
|
||||
inorder = 1;
|
||||
for (i = 0; i < tok->n_args; ++i) {
|
||||
@ -2357,7 +2347,7 @@ networkstatus_parse_vote_from_string(const char *s, const char **eos_out,
|
||||
}
|
||||
|
||||
if (ns->type != NS_TYPE_CONSENSUS &&
|
||||
(tok = find_first_by_keyword(tokens, K_LEGACY_DIR_KEY))) {
|
||||
(tok = find_opt_by_keyword(tokens, K_LEGACY_DIR_KEY))) {
|
||||
int bad = 1;
|
||||
if (strlen(tok->args[0]) == HEX_DIGEST_LEN) {
|
||||
networkstatus_voter_info_t *voter = smartlist_get(ns->voters, 0);
|
||||
@ -2551,8 +2541,7 @@ networkstatus_parse_detached_signatures(const char *s, const char *eos)
|
||||
goto err;
|
||||
}
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_CONSENSUS_DIGEST);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, K_CONSENSUS_DIGEST);
|
||||
if (strlen(tok->args[0]) != HEX_DIGEST_LEN) {
|
||||
log_warn(LD_DIR, "Wrong length on consensus-digest in detached "
|
||||
"networkstatus signatures");
|
||||
@ -2565,19 +2554,19 @@ networkstatus_parse_detached_signatures(const char *s, const char *eos)
|
||||
goto err;
|
||||
}
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_VALID_AFTER);
|
||||
tok = find_by_keyword(tokens, K_VALID_AFTER);
|
||||
if (parse_iso_time(tok->args[0], &sigs->valid_after)) {
|
||||
log_warn(LD_DIR, "Bad valid-after in detached networkstatus signatures");
|
||||
goto err;
|
||||
}
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_FRESH_UNTIL);
|
||||
tok = find_by_keyword(tokens, K_FRESH_UNTIL);
|
||||
if (parse_iso_time(tok->args[0], &sigs->fresh_until)) {
|
||||
log_warn(LD_DIR, "Bad fresh-until in detached networkstatus signatures");
|
||||
goto err;
|
||||
}
|
||||
|
||||
tok = find_first_by_keyword(tokens, K_VALID_UNTIL);
|
||||
tok = find_by_keyword(tokens, K_VALID_UNTIL);
|
||||
if (parse_iso_time(tok->args[0], &sigs->valid_until)) {
|
||||
log_warn(LD_DIR, "Bad valid-until in detached networkstatus signatures");
|
||||
goto err;
|
||||
@ -3165,12 +3154,28 @@ tokenize_string(memarea_t *area,
|
||||
* NULL if no such keyword is found.
|
||||
*/
|
||||
static directory_token_t *
|
||||
find_first_by_keyword(smartlist_t *s, directory_keyword keyword)
|
||||
find_opt_by_keyword(smartlist_t *s, directory_keyword keyword)
|
||||
{
|
||||
SMARTLIST_FOREACH(s, directory_token_t *, t, if (t->tp == keyword) return t);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/** Find the first token in <b>s</b> whose keyword is <b>keyword</b>; fail
|
||||
* with an assert if no such keyword is found.
|
||||
*/
|
||||
static directory_token_t *
|
||||
_find_by_keyword(smartlist_t *s, directory_keyword keyword,
|
||||
const char *keyword_as_string)
|
||||
{
|
||||
directory_token_t *tok = find_opt_by_keyword(s, keyword);
|
||||
if (PREDICT_UNLIKELY(!tok)) {
|
||||
log_err(LD_BUG, "Missing %s [%d] in directory object that should have "
|
||||
"been validated. Internal error.", keyword_as_string, (int)keyword);
|
||||
tor_assert(tok);
|
||||
}
|
||||
return tok;
|
||||
}
|
||||
|
||||
/** Return a newly allocated smartlist of all accept or reject tokens in
|
||||
* <b>s</b>.
|
||||
*/
|
||||
@ -3497,8 +3502,7 @@ rend_parse_v2_service_descriptor(rend_service_descriptor_t **parsed_out,
|
||||
goto err;
|
||||
}
|
||||
/* Parse base32-encoded descriptor ID. */
|
||||
tok = find_first_by_keyword(tokens, R_RENDEZVOUS_SERVICE_DESCRIPTOR);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, R_RENDEZVOUS_SERVICE_DESCRIPTOR);
|
||||
tor_assert(tok == smartlist_get(tokens, 0));
|
||||
tor_assert(tok->n_args == 1);
|
||||
if (strlen(tok->args[0]) != REND_DESC_ID_V2_LEN_BASE32 ||
|
||||
@ -3513,8 +3517,7 @@ rend_parse_v2_service_descriptor(rend_service_descriptor_t **parsed_out,
|
||||
goto err;
|
||||
}
|
||||
/* Parse descriptor version. */
|
||||
tok = find_first_by_keyword(tokens, R_VERSION);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, R_VERSION);
|
||||
tor_assert(tok->n_args == 1);
|
||||
result->version =
|
||||
(int) tor_parse_long(tok->args[0], 10, 0, INT_MAX, &num_ok, NULL);
|
||||
@ -3528,13 +3531,11 @@ rend_parse_v2_service_descriptor(rend_service_descriptor_t **parsed_out,
|
||||
goto err;
|
||||
}
|
||||
/* Parse public key. */
|
||||
tok = find_first_by_keyword(tokens, R_PERMANENT_KEY);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, R_PERMANENT_KEY);
|
||||
result->pk = tok->key;
|
||||
tok->key = NULL; /* Prevent free */
|
||||
/* Parse secret ID part. */
|
||||
tok = find_first_by_keyword(tokens, R_SECRET_ID_PART);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, R_SECRET_ID_PART);
|
||||
tor_assert(tok->n_args == 1);
|
||||
if (strlen(tok->args[0]) != REND_SECRET_ID_PART_LEN_BASE32 ||
|
||||
strspn(tok->args[0], BASE32_CHARS) != REND_SECRET_ID_PART_LEN_BASE32) {
|
||||
@ -3548,16 +3549,14 @@ rend_parse_v2_service_descriptor(rend_service_descriptor_t **parsed_out,
|
||||
}
|
||||
/* Parse publication time -- up-to-date check is done when storing the
|
||||
* descriptor. */
|
||||
tok = find_first_by_keyword(tokens, R_PUBLICATION_TIME);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, R_PUBLICATION_TIME);
|
||||
tor_assert(tok->n_args == 1);
|
||||
if (parse_iso_time(tok->args[0], &result->timestamp) < 0) {
|
||||
log_warn(LD_REND, "Invalid publication time: '%s'", tok->args[0]);
|
||||
goto err;
|
||||
}
|
||||
/* Parse protocol versions. */
|
||||
tok = find_first_by_keyword(tokens, R_PROTOCOL_VERSIONS);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, R_PROTOCOL_VERSIONS);
|
||||
tor_assert(tok->n_args == 1);
|
||||
versions = smartlist_create();
|
||||
smartlist_split_string(versions, tok->args[0], ",",
|
||||
@ -3572,7 +3571,7 @@ rend_parse_v2_service_descriptor(rend_service_descriptor_t **parsed_out,
|
||||
SMARTLIST_FOREACH(versions, char *, cp, tor_free(cp));
|
||||
smartlist_free(versions);
|
||||
/* Parse encrypted introduction points. Don't verify. */
|
||||
tok = find_first_by_keyword(tokens, R_INTRODUCTION_POINTS);
|
||||
tok = find_opt_by_keyword(tokens, R_INTRODUCTION_POINTS);
|
||||
if (tok) {
|
||||
if (strcmp(tok->object_type, "MESSAGE")) {
|
||||
log_warn(LD_DIR, "Bad object type: introduction points should be of "
|
||||
@ -3587,8 +3586,7 @@ rend_parse_v2_service_descriptor(rend_service_descriptor_t **parsed_out,
|
||||
*intro_points_encrypted_size_out = 0;
|
||||
}
|
||||
/* Parse and verify signature. */
|
||||
tok = find_first_by_keyword(tokens, R_SIGNATURE);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, R_SIGNATURE);
|
||||
note_crypto_pk_op(VERIFY_RTR);
|
||||
if (check_signature_token(desc_hash, tok, result->pk, 0,
|
||||
"v2 rendezvous service descriptor") < 0)
|
||||
@ -3786,8 +3784,7 @@ rend_parse_introduction_points(rend_service_descriptor_t *parsed,
|
||||
intro = tor_malloc_zero(sizeof(rend_intro_point_t));
|
||||
info = intro->extend_info = tor_malloc_zero(sizeof(extend_info_t));
|
||||
/* Parse identifier. */
|
||||
tok = find_first_by_keyword(tokens, R_IPO_IDENTIFIER);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, R_IPO_IDENTIFIER);
|
||||
if (base32_decode(info->identity_digest, DIGEST_LEN,
|
||||
tok->args[0], REND_INTRO_POINT_ID_LEN_BASE32) < 0) {
|
||||
log_warn(LD_REND, "Identity digest contains illegal characters: %s",
|
||||
@ -3800,7 +3797,7 @@ rend_parse_introduction_points(rend_service_descriptor_t *parsed,
|
||||
base16_encode(info->nickname + 1, sizeof(info->nickname) - 1,
|
||||
info->identity_digest, DIGEST_LEN);
|
||||
/* Parse IP address. */
|
||||
tok = find_first_by_keyword(tokens, R_IPO_IP_ADDRESS);
|
||||
tok = find_by_keyword(tokens, R_IPO_IP_ADDRESS);
|
||||
if (tor_addr_from_str(&info->addr, tok->args[0])<0) {
|
||||
log_warn(LD_REND, "Could not parse introduction point address.");
|
||||
rend_intro_point_free(intro);
|
||||
@ -3813,7 +3810,7 @@ rend_parse_introduction_points(rend_service_descriptor_t *parsed,
|
||||
}
|
||||
|
||||
/* Parse onion port. */
|
||||
tok = find_first_by_keyword(tokens, R_IPO_ONION_PORT);
|
||||
tok = find_by_keyword(tokens, R_IPO_ONION_PORT);
|
||||
info->port = (uint16_t) tor_parse_long(tok->args[0],10,1,65535,
|
||||
&num_ok,NULL);
|
||||
if (!info->port || !num_ok) {
|
||||
@ -3823,11 +3820,11 @@ rend_parse_introduction_points(rend_service_descriptor_t *parsed,
|
||||
goto err;
|
||||
}
|
||||
/* Parse onion key. */
|
||||
tok = find_first_by_keyword(tokens, R_IPO_ONION_KEY);
|
||||
tok = find_by_keyword(tokens, R_IPO_ONION_KEY);
|
||||
info->onion_key = tok->key;
|
||||
tok->key = NULL; /* Prevent free */
|
||||
/* Parse service key. */
|
||||
tok = find_first_by_keyword(tokens, R_IPO_SERVICE_KEY);
|
||||
tok = find_by_keyword(tokens, R_IPO_SERVICE_KEY);
|
||||
intro->intro_key = tok->key;
|
||||
tok->key = NULL; /* Prevent free */
|
||||
/* Add extend info to list of introduction points. */
|
||||
@ -3897,8 +3894,7 @@ rend_parse_client_keys(strmap_t *parsed_clients, const char *ckstr)
|
||||
goto err;
|
||||
}
|
||||
/* Parse client name. */
|
||||
tok = find_first_by_keyword(tokens, C_CLIENT_NAME);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, C_CLIENT_NAME);
|
||||
tor_assert(tok == smartlist_get(tokens, 0));
|
||||
tor_assert(tok->n_args == 1);
|
||||
|
||||
@ -3920,15 +3916,14 @@ rend_parse_client_keys(strmap_t *parsed_clients, const char *ckstr)
|
||||
parsed_entry->client_name = tor_strdup(tok->args[0]);
|
||||
strmap_set(parsed_clients, parsed_entry->client_name, parsed_entry);
|
||||
/* Parse client key. */
|
||||
tok = find_first_by_keyword(tokens, C_CLIENT_KEY);
|
||||
tok = find_opt_by_keyword(tokens, C_CLIENT_KEY);
|
||||
if (tok) {
|
||||
parsed_entry->client_key = tok->key;
|
||||
tok->key = NULL; /* Prevent free */
|
||||
}
|
||||
|
||||
/* Parse descriptor cookie. */
|
||||
tok = find_first_by_keyword(tokens, C_DESCRIPTOR_COOKIE);
|
||||
tor_assert(tok);
|
||||
tok = find_by_keyword(tokens, C_DESCRIPTOR_COOKIE);
|
||||
tor_assert(tok->n_args == 1);
|
||||
if (strlen(tok->args[0]) != REND_DESC_COOKIE_LEN_BASE64 + 2) {
|
||||
log_warn(LD_REND, "Descriptor cookie has illegal length: %s",
|
||||
|
||||
Loading…
Reference in New Issue
Block a user