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Parse IPv6 policy summaries from router descriptors and microdescs

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This commit is contained in:
Nick Mathewson 2012-10-24 21:59:55 -04:00
parent a96c0affcb
commit c53adac122
4 changed files with 25 additions and 2 deletions
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1
src/or/microdesc.c
View File

@ -583,6 +583,7 @@ microdesc_free(microdesc_t *md)
smartlist_free(md->family);
}
short_policy_free(md->exit_policy);
short_policy_free(md->ipv6_exit_policy);
tor_free(md);
}

10
src/or/or.h
View File

@ -1878,7 +1878,10 @@ typedef struct {
/** How many bytes/s is this router known to handle? */
uint32_t bandwidthcapacity;
smartlist_t *exit_policy; /**< What streams will this OR permit
* to exit? NULL for 'reject *:*'. */
* to exit on IPv4? NULL for 'reject *:*'. */
/** What streams will this OR permit to exit on IPv6?
* NULL for 'reject *:*' */
struct short_policy_t *ipv6_exit_policy;
long uptime; /**< How many seconds the router claims to have been up */
smartlist_t *declared_family; /**< Nicknames of router which this router
* claims are its family. */
@ -2084,8 +2087,11 @@ typedef struct microdesc_t {
uint16_t ipv6_orport;
/** As routerinfo_t.family */
smartlist_t *family;
/** Exit policy summary */
/** IPv4 exit policy summary */
short_policy_t *exit_policy;
/** IPv6 exit policy summary */
short_policy_t *ipv6_exit_policy;
} microdesc_t;
/** A node_t represents a Tor router.

1
src/or/routerlist.c
View File

@ -2402,6 +2402,7 @@ routerinfo_free(routerinfo_t *router)
smartlist_free(router->declared_family);
}
addr_policy_list_free(router->exit_policy);
short_policy_free(router->ipv6_exit_policy);
memset(router, 77, sizeof(routerinfo_t));

15
src/or/routerparse.c
View File

@ -66,6 +66,7 @@ typedef enum {
K_SERVER_VERSIONS,
K_OR_ADDRESS,
K_P,
K_P6,
K_R,
K_A,
K_S,
@ -77,6 +78,7 @@ typedef enum {
K_CACHES_EXTRA_INFO,
K_HIDDEN_SERVICE_DIR,
K_ALLOW_SINGLE_HOP_EXITS,
K_IPV6_POLICY,
K_DIRREQ_END,
K_DIRREQ_V2_IPS,
@ -271,6 +273,7 @@ static token_rule_t routerdesc_token_table[] = {
T0N("reject6", K_REJECT6, ARGS, NO_OBJ ),
T0N("accept6", K_ACCEPT6, ARGS, NO_OBJ ),
T1_START( "router", K_ROUTER, GE(5), NO_OBJ ),
T01("ipv6-policy", K_IPV6_POLICY, CONCAT_ARGS, NO_OBJ),
T1( "signing-key", K_SIGNING_KEY, NO_ARGS, NEED_KEY_1024 ),
T1( "onion-key", K_ONION_KEY, NO_ARGS, NEED_KEY_1024 ),
T1_END( "router-signature", K_ROUTER_SIGNATURE, NO_ARGS, NEED_OBJ ),
@ -527,6 +530,7 @@ static token_rule_t microdesc_token_table[] = {
T0N("a", K_A, GE(1), NO_OBJ ),
T01("family", K_FAMILY, ARGS, NO_OBJ ),
T01("p", K_P, CONCAT_ARGS, NO_OBJ ),
T01("p6", K_P6, CONCAT_ARGS, NO_OBJ ),
A01("@last-listed", A_LAST_LISTED, CONCAT_ARGS, NO_OBJ ),
END_OF_TABLE
};
@ -1573,6 +1577,14 @@ router_parse_entry_from_string(const char *s, const char *end,
if (policy_is_reject_star(router->exit_policy))
router->policy_is_reject_star = 1;
if ((tok = find_opt_by_keyword(tokens, K_IPV6_POLICY)) && tok->n_args) {
router->ipv6_exit_policy = parse_short_policy(tok->args[0]);
if (! router->ipv6_exit_policy) {
log_warn(LD_DIR , "Error in ipv6-policy %s", escaped(tok->args[0]));
goto err;
}
}
if ((tok = find_opt_by_keyword(tokens, K_FAMILY)) && tok->n_args) {
int i;
router->declared_family = smartlist_new();
@ -4484,6 +4496,9 @@ microdescs_parse_from_string(const char *s, const char *eos,
if ((tok = find_opt_by_keyword(tokens, K_P))) {
md->exit_policy = parse_short_policy(tok->args[0]);
}
if ((tok = find_opt_by_keyword(tokens, K_P6))) {
md->ipv6_exit_policy = parse_short_policy(tok->args[0]);
}
crypto_digest256(md->digest, md->body, md->bodylen, DIGEST_SHA256);