commit 6c79172924a6a1660e55c29b7f2a205205ce0d21 Author: David Goulet dgoulet@torproject.org Date: Tue Jun 25 10:47:37 2019 -0400
hs-v3: Add protover HSIntro=5
Signed-off-by: David Goulet dgoulet@torproject.org --- src/core/or/or.h | 4 ++++ src/core/or/protover.c | 2 +- src/core/or/versions.c | 4 +++- src/feature/nodelist/nodelist.c | 13 ++++++++++++- src/feature/nodelist/nodelist.h | 1 + 5 files changed, 21 insertions(+), 3 deletions(-)
diff --git a/src/core/or/or.h b/src/core/or/or.h index ab258629a..990cfacbc 100644 --- a/src/core/or/or.h +++ b/src/core/or/or.h @@ -843,6 +843,10 @@ typedef struct protover_summary_flags_t { /** True iff this router has a protocol list that allows clients to * negotiate hs circuit setup padding. Requires Padding>=2. */ unsigned int supports_hs_setup_padding : 1; + + /** True iff this router has a protocol list that allows it to support the + * ESTABLISH_INTRO DoS cell extension. Requires HSIntro>=5. */ + unsigned int supports_establish_intro_dos_extension : 1; } protover_summary_flags_t;
typedef struct routerinfo_t routerinfo_t; diff --git a/src/core/or/protover.c b/src/core/or/protover.c index ccd33fabf..905c5e9ed 100644 --- a/src/core/or/protover.c +++ b/src/core/or/protover.c @@ -392,7 +392,7 @@ protover_get_supported_protocols(void) "Desc=1-2 " "DirCache=1-2 " "HSDir=1-2 " - "HSIntro=3-4 " + "HSIntro=3-5 " "HSRend=1-2 " "Link=1-5 " #ifdef HAVE_WORKING_TOR_TLS_GET_TLSSECRETS diff --git a/src/core/or/versions.c b/src/core/or/versions.c index 06417bb4e..2c32b529f 100644 --- a/src/core/or/versions.c +++ b/src/core/or/versions.c @@ -450,7 +450,9 @@ memoize_protover_summary(protover_summary_flags_t *out, PROTOVER_HS_RENDEZVOUS_POINT_V3); out->supports_hs_setup_padding = protocol_list_supports_protocol(protocols, PRT_PADDING, - PROTOVER_HS_SETUP_PADDING); + PROTOVER_HS_SETUP_PADDING); + out->supports_establish_intro_dos_extension = + protocol_list_supports_protocol(protocols, PRT_HSINTRO, 5);
protover_summary_flags_t *new_cached = tor_memdup(out, sizeof(*out)); cached = strmap_set(protover_summary_map, protocols, new_cached); diff --git a/src/feature/nodelist/nodelist.c b/src/feature/nodelist/nodelist.c index 21914c6c6..7da3b8524 100644 --- a/src/feature/nodelist/nodelist.c +++ b/src/feature/nodelist/nodelist.c @@ -1106,7 +1106,7 @@ node_ed25519_id_matches(const node_t *node, const ed25519_public_key_t *id) /** Dummy object that should be unreturnable. Used to ensure that * node_get_protover_summary_flags() always returns non-NULL. */ static const protover_summary_flags_t zero_protover_flags = { - 0,0,0,0,0,0,0,0 + 0,0,0,0,0,0,0,0,0 };
/** Return the protover_summary_flags for a given node. */ @@ -1166,6 +1166,17 @@ node_supports_ed25519_hs_intro(const node_t *node) return node_get_protover_summary_flags(node)->supports_ed25519_hs_intro; }
+/** Return true iff <b>node</b> supports the DoS ESTABLISH_INTRO cell + * extenstion. */ +int +node_supports_establish_intro_dos_extension(const node_t *node) +{ + tor_assert(node); + + return node_get_protover_summary_flags(node)-> + supports_establish_intro_dos_extension; +} + /** Return true iff <b>node</b> supports to be a rendezvous point for hidden * service version 3 (HSRend=2). */ int diff --git a/src/feature/nodelist/nodelist.h b/src/feature/nodelist/nodelist.h index 84ab5f7a5..af144c197 100644 --- a/src/feature/nodelist/nodelist.h +++ b/src/feature/nodelist/nodelist.h @@ -76,6 +76,7 @@ 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); int node_supports_v3_rendezvous_point(const node_t *node); +int node_supports_establish_intro_dos_extension(const node_t *node); const uint8_t *node_get_rsa_id_digest(const node_t *node); smartlist_t *node_get_link_specifier_smartlist(const node_t *node, bool direct_conn);