commit c17a04376de9e0517e611ad164172e7a5de26953 Author: David Goulet dgoulet@torproject.org Date: Tue May 2 15:50:33 2017 -0400

nodelist: Add functions to check for HS v3 support

This introduces node_supports_v3_hsdir() and node_supports_ed25519_hs_intro() that checks the routerstatus_t of a node and if not present, checks the routerinfo_t.

This is groundwork for proposal 224 service implementation in #20657.

Signed-off-by: David Goulet dgoulet@torproject.org --- src/or/nodelist.c | 42 ++++++++++++++++++++++++++++++++++++++++++ src/or/nodelist.h | 2 ++ 2 files changed, 44 insertions(+)

diff --git a/src/or/nodelist.c b/src/or/nodelist.c index 0ef9741..a04f415 100644 --- a/src/or/nodelist.c +++ b/src/or/nodelist.c @@ -707,6 +707,48 @@ node_supports_ed25519_link_authentication(const node_t *node) return 0; }

+/** Return true iff <b>node</b> supports the hidden service directory version + * 3 protocol (proposal 224). */ +int +node_supports_v3_hsdir(const node_t *node) +{ + tor_assert(node); + + if (node->rs) { + return node->rs->supports_v3_hsdir; + } + if (node->ri) { + if (node->ri->protocol_list == NULL) { + return 0; + } + return protocol_list_supports_protocol(node->ri->protocol_list, + PRT_HSDIR, 2); + } + tor_assert_nonfatal_unreached_once(); + return 0; +} + +/** Return true iff <b>node</b> supports ed25519 authentication as an hidden + * service introduction point.*/ +int +node_supports_ed25519_hs_intro(const node_t *node) +{ + tor_assert(node); + + if (node->rs) { + return node->rs->supports_ed25519_hs_intro; + } + if (node->ri) { + if (node->ri->protocol_list == NULL) { + return 0; + } + return protocol_list_supports_protocol(node->ri->protocol_list, + PRT_HSINTRO, 4); + } + tor_assert_nonfatal_unreached_once(); + return 0; +} + /** Return the RSA ID key's SHA1 digest for the provided node. */ const uint8_t * node_get_rsa_id_digest(const node_t *node) diff --git a/src/or/nodelist.h b/src/or/nodelist.h index 6c063de..f59e767 100644 --- a/src/or/nodelist.h +++ b/src/or/nodelist.h @@ -58,6 +58,8 @@ const ed25519_public_key_t *node_get_ed25519_id(const node_t *node); int node_ed25519_id_matches(const node_t *node, const ed25519_public_key_t *id); int node_supports_ed25519_link_authentication(const node_t *node); +int node_supports_v3_hsdir(const node_t *node); +int node_supports_ed25519_hs_intro(const node_t *node); const uint8_t *node_get_rsa_id_digest(const node_t *node);

int node_has_ipv6_addr(const node_t *node);