tor-commits February 2019

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16 participants
1788 discussions

[tor/release-0.4.0] Merge branch 'maint-0.4.0' into release-0.4.0
by nickm＠torproject.org 26 Feb '19

26 Feb '19

commit 9049b545c21bfda637faf28accbd74e3fc025cb6 Merge: 37698d92b 35257a1c6 Author: Nick Mathewson <nickm(a)torproject.org> Date: Tue Feb 26 07:27:50 2019 -0500 Merge branch 'maint-0.4.0' into release-0.4.0 changes/bug13221 | 5 +++++ src/app/config/config.c | 8 ++++---- 2 files changed, 9 insertions(+), 4 deletions(-)

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[tor/release-0.4.0] Fix some error-checking logic and a misleading error message
by nickm＠torproject.org 26 Feb '19

26 Feb '19

commit 1b9e77349ffbe813c7b16af67c069d967327f63b Author: Kris Katterjohn <katterjohn(a)gmail.com> Date: Fri Jan 25 15:52:40 2019 -0600 Fix some error-checking logic and a misleading error message When IPv4Only (IPv6Only) was used but the address could not be interpreted as a IPv4 (IPv6) address, the error message referred to the wrong IP version. This also fixes up the error-checking logic so it's more precise about what's being checked. Fixes bug 13221; bugfix on 0.2.3.9-alpha Signed-off-by: Kris Katterjohn <katterjohn(a)gmail.com> --- changes/bug13221 | 5 +++++ src/or/config.c | 8 ++++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/changes/bug13221 b/changes/bug13221 new file mode 100644 index 000000000..13935a192 --- /dev/null +++ b/changes/bug13221 @@ -0,0 +1,5 @@ + o Minor bugfixes (logging): + - Correct a misleading error message when IPv4Only or IPv6Only + is used but the resolved address can not be interpreted as an + address of the specified IP version. Fixes bug 13221; bugfix + on 0.2.3.9-alpha. Patch from Kris Katterjohn. diff --git a/src/or/config.c b/src/or/config.c index 810f1e9a7..e0d1794bd 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -6650,13 +6650,13 @@ parse_port_config(smartlist_t *out, portname, escaped(ports->value)); goto err; } - if (bind_ipv4_only && tor_addr_family(&addr) == AF_INET6) { - log_warn(LD_CONFIG, "Could not interpret %sPort address as IPv6", + if (bind_ipv4_only && tor_addr_family(&addr) != AF_INET) { + log_warn(LD_CONFIG, "Could not interpret %sPort address as IPv4", portname); goto err; } - if (bind_ipv6_only && tor_addr_family(&addr) == AF_INET) { - log_warn(LD_CONFIG, "Could not interpret %sPort address as IPv4", + if (bind_ipv6_only && tor_addr_family(&addr) != AF_INET6) { + log_warn(LD_CONFIG, "Could not interpret %sPort address as IPv6", portname); goto err; }

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[tor/master] When a DirAuth checks reachability on itself and has IPv6, mark it as reachable
by asn＠torproject.org 26 Feb '19

26 Feb '19

commit df8ad6473575e217fe69de7d0d12341a1162b95e Author: Neel Chauhan <neel(a)neelc.org> Date: Fri Feb 22 13:36:02 2019 -0500 When a DirAuth checks reachability on itself and has IPv6, mark it as reachable --- changes/bug24338 | 4 ++++ src/feature/dirauth/voteflags.c | 18 +++++++++++++++--- 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/changes/bug24338 b/changes/bug24338 new file mode 100644 index 000000000..75984b632 --- /dev/null +++ b/changes/bug24338 @@ -0,0 +1,4 @@ + o Minor bugfixes (dirauth, ipv6): + - If we are a durauth with IPv6 and are marking relays as running, mark + ourselves as reachable on IPv6. Fixes bug 24338; bugfix on 0.4.0.2-alpha. + Patch by Neel Chauhan diff --git a/src/feature/dirauth/voteflags.c b/src/feature/dirauth/voteflags.c index 4f7593a3e..0a53c588d 100644 --- a/src/feature/dirauth/voteflags.c +++ b/src/feature/dirauth/voteflags.c @@ -531,6 +531,20 @@ dirserv_set_router_is_running(routerinfo_t *router, time_t now) node->is_running = answer; } +/* Check node and ri on whether or not we should publish a + * relay's IPv6 addresses. */ +static int +should_publish_node_ipv6(const node_t *node, const routerinfo_t *ri, + time_t now) +{ + const or_options_t *options = get_options(); + + return options->AuthDirHasIPv6Connectivity == 1 && + !tor_addr_is_null(&ri->ipv6_addr) && + ((node->last_reachable6 >= now - REACHABLE_TIMEOUT) || + router_is_me(ri)); +} + /** Extract status information from ri and from other authority * functions and store it in rs. rs is zeroed out before it is * set. @@ -597,9 +611,7 @@ set_routerstatus_from_routerinfo(routerstatus_t *rs, rs->is_staledesc = (ri->cache_info.published_on + DESC_IS_STALE_INTERVAL) < now; - if (options->AuthDirHasIPv6Connectivity == 1 && - !tor_addr_is_null(&ri->ipv6_addr) && - node->last_reachable6 >= now - REACHABLE_TIMEOUT) { + if (should_publish_node_ipv6(node, ri, now)) { /* We're configured as having IPv6 connectivity. There's an IPv6 OR port and it's reachable so copy it to the routerstatus. */ tor_addr_copy(&rs->ipv6_addr, &ri->ipv6_addr);

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[tor/master] Merge branch 'tor-github/pr/698'
by asn＠torproject.org 26 Feb '19

26 Feb '19

commit 57d33b5786019b3320a7b2d5c747ce31ea3e1a77 Merge: 7fbfdf2af df8ad6473 Author: George Kadianakis <desnacked(a)riseup.net> Date: Tue Feb 26 12:35:14 2019 +0200 Merge branch 'tor-github/pr/698' changes/bug24338 | 4 ++++ src/feature/dirauth/voteflags.c | 18 +++++++++++++++--- 2 files changed, 19 insertions(+), 3 deletions(-)

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[tor/master] Fix users of base32_decode to check for expected length in return.
by asn＠torproject.org 26 Feb '19

26 Feb '19

commit f632335feb27b45a3ee5eb64690826bda52467bd Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Jan 17 13:32:19 2019 -0500 Fix users of base32_decode to check for expected length in return. Also, when we log about a failure from base32_decode(), we now say that the length is wrong or that the characters were invalid: previously we would just say that there were invalid characters. Follow-up on 28913 work. --- src/feature/hs/hs_client.c | 5 ++++- src/feature/hs/hs_common.c | 3 ++- src/feature/hs/hs_service.c | 3 ++- src/feature/rend/rendcache.c | 7 ++++--- src/feature/rend/rendcommon.c | 5 +++-- src/feature/rend/rendparse.c | 17 +++++++++++------ 6 files changed, 26 insertions(+), 14 deletions(-) diff --git a/src/feature/hs/hs_client.c b/src/feature/hs/hs_client.c index dfad216ab..a8a4aa776 100644 --- a/src/feature/hs/hs_client.c +++ b/src/feature/hs/hs_client.c @@ -1517,7 +1517,10 @@ parse_auth_file_content(const char *client_key_str) auth = tor_malloc_zero(sizeof(hs_client_service_authorization_t)); if (base32_decode((char *) auth->enc_seckey.secret_key, sizeof(auth->enc_seckey.secret_key), - seckey_b32, strlen(seckey_b32)) < 0) { + seckey_b32, strlen(seckey_b32)) != + sizeof(auth->enc_seckey.secret_key)) { + log_warn(LD_REND, "Client authorization encoded base32 private key " + "can't be decoded: %s", seckey_b32); goto err; } strncpy(auth->onion_address, onion_address, HS_SERVICE_ADDR_LEN_BASE32); diff --git a/src/feature/hs/hs_common.c b/src/feature/hs/hs_common.c index 8dbd9485e..97229ac11 100644 --- a/src/feature/hs/hs_common.c +++ b/src/feature/hs/hs_common.c @@ -926,7 +926,8 @@ hs_parse_address(const char *address, ed25519_public_key_t *key_out, } /* Decode address so we can extract needed fields. */ - if (base32_decode(decoded, sizeof(decoded), address, strlen(address)) < 0) { + if (base32_decode(decoded, sizeof(decoded), address, strlen(address)) + != sizeof(decoded)) { log_warn(LD_REND, "Service address %s can't be decoded.", escaped_safe_str(address)); goto invalid; diff --git a/src/feature/hs/hs_service.c b/src/feature/hs/hs_service.c index 623a239d5..6f6cf0105 100644 --- a/src/feature/hs/hs_service.c +++ b/src/feature/hs/hs_service.c @@ -1179,7 +1179,8 @@ parse_authorized_client(const char *client_key_str) client = tor_malloc_zero(sizeof(hs_service_authorized_client_t)); if (base32_decode((char *) client->client_pk.public_key, sizeof(client->client_pk.public_key), - pubkey_b32, strlen(pubkey_b32)) < 0) { + pubkey_b32, strlen(pubkey_b32)) != + sizeof(client->client_pk.public_key)) { log_warn(LD_REND, "Client authorization public key cannot be decoded: %s", pubkey_b32); goto err; diff --git a/src/feature/rend/rendcache.c b/src/feature/rend/rendcache.c index ecd85e4a5..699b5a4a4 100644 --- a/src/feature/rend/rendcache.c +++ b/src/feature/rend/rendcache.c @@ -593,10 +593,10 @@ rend_cache_lookup_v2_desc_as_dir(const char *desc_id, const char **desc) char desc_id_digest[DIGEST_LEN]; tor_assert(rend_cache_v2_dir); if (base32_decode(desc_id_digest, DIGEST_LEN, - desc_id, REND_DESC_ID_V2_LEN_BASE32) < 0) { + desc_id, REND_DESC_ID_V2_LEN_BASE32) != DIGEST_LEN) { log_fn(LOG_PROTOCOL_WARN, LD_REND, "Rejecting v2 rendezvous descriptor request -- descriptor ID " - "contains illegal characters: %s", + "has wrong length or illegal characters: %s", safe_str(desc_id)); return -1; } @@ -854,7 +854,8 @@ rend_cache_store_v2_desc_as_client(const char *desc, *entry = NULL; } if (base32_decode(want_desc_id, sizeof(want_desc_id), - desc_id_base32, strlen(desc_id_base32)) < 0) { + desc_id_base32, strlen(desc_id_base32)) != + sizeof(want_desc_id)) { log_warn(LD_BUG, "Couldn't decode base32 %s for descriptor id.", escaped_safe_str_client(desc_id_base32)); goto err; diff --git a/src/feature/rend/rendcommon.c b/src/feature/rend/rendcommon.c index 15e4534fc..80edf549f 100644 --- a/src/feature/rend/rendcommon.c +++ b/src/feature/rend/rendcommon.c @@ -171,9 +171,10 @@ rend_compute_v2_desc_id(char *desc_id_out, const char *service_id, } /* Convert service ID to binary. */ if (base32_decode(service_id_binary, REND_SERVICE_ID_LEN, - service_id, REND_SERVICE_ID_LEN_BASE32) < 0) { + service_id, REND_SERVICE_ID_LEN_BASE32) != + REND_SERVICE_ID_LEN) { log_warn(LD_REND, "Could not compute v2 descriptor ID: " - "Illegal characters in service ID: %s", + "Illegal characters or wrong length for service ID: %s", safe_str_client(service_id)); return -1; } diff --git a/src/feature/rend/rendparse.c b/src/feature/rend/rendparse.c index e2378e340..c79f861b5 100644 --- a/src/feature/rend/rendparse.c +++ b/src/feature/rend/rendparse.c @@ -143,8 +143,9 @@ rend_parse_v2_service_descriptor(rend_service_descriptor_t **parsed_out, goto err; } if (base32_decode(desc_id_out, DIGEST_LEN, - tok->args[0], REND_DESC_ID_V2_LEN_BASE32) < 0) { - log_warn(LD_REND, "Descriptor ID contains illegal characters: %s", + tok->args[0], REND_DESC_ID_V2_LEN_BASE32) != DIGEST_LEN) { + log_warn(LD_REND, + "Descriptor ID has wrong length or illegal characters: %s", tok->args[0]); goto err; } @@ -174,8 +175,10 @@ rend_parse_v2_service_descriptor(rend_service_descriptor_t **parsed_out, log_warn(LD_REND, "Invalid secret ID part: '%s'", tok->args[0]); goto err; } - if (base32_decode(secret_id_part, DIGEST_LEN, tok->args[0], 32) < 0) { - log_warn(LD_REND, "Secret ID part contains illegal characters: %s", + if (base32_decode(secret_id_part, DIGEST_LEN, tok->args[0], 32) != + DIGEST_LEN) { + log_warn(LD_REND, + "Secret ID part has wrong length or illegal characters: %s", tok->args[0]); goto err; } @@ -429,8 +432,10 @@ rend_parse_introduction_points(rend_service_descriptor_t *parsed, /* Parse identifier. */ 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", + tok->args[0], REND_INTRO_POINT_ID_LEN_BASE32) != + DIGEST_LEN) { + log_warn(LD_REND, + "Identity digest has wrong length or illegal characters: %s", tok->args[0]); rend_intro_point_free(intro); goto err;

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[tor/master] base32_decode(): Return number of bytes written on success.
by asn＠torproject.org 26 Feb '19

26 Feb '19

commit a517daa56f5848d25ba79617a1a7b82ed2b0a7c0 Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Dec 20 08:36:25 2018 -0500 base32_decode(): Return number of bytes written on success. This makes it consistent with base64_decode(). Closes ticket 28913. --- changes/ticket28913 | 4 ++++ src/feature/control/control.c | 3 ++- src/feature/rend/rendcache.c | 3 +-- src/lib/encoding/binascii.c | 4 ++-- src/test/test_crypto.c | 8 ++++---- src/test/test_util_format.c | 4 ++-- 6 files changed, 15 insertions(+), 11 deletions(-) diff --git a/changes/ticket28913 b/changes/ticket28913 new file mode 100644 index 000000000..e09847464 --- /dev/null +++ b/changes/ticket28913 @@ -0,0 +1,4 @@ + o Code simplification and refactoring: + - Make the base32_decode() API return the number of bytes written, + for consistency with base64_decode(). + Closes ticket 28913. diff --git a/src/feature/control/control.c b/src/feature/control/control.c index 7fae3b7a1..1e3db6337 100644 --- a/src/feature/control/control.c +++ b/src/feature/control/control.c @@ -4428,7 +4428,8 @@ handle_control_hsfetch(control_connection_t *conn, uint32_t len, } else if (strcmpstart(arg1, v2_str) == 0 && rend_valid_descriptor_id(arg1 + v2_str_len) && base32_decode(digest, sizeof(digest), arg1 + v2_str_len, - REND_DESC_ID_V2_LEN_BASE32) == 0) { + REND_DESC_ID_V2_LEN_BASE32) == + REND_DESC_ID_V2_LEN_BASE32) { /* We have a well formed version 2 descriptor ID. Keep the decoded value * of the id. */ desc_id = digest; diff --git a/src/feature/rend/rendcache.c b/src/feature/rend/rendcache.c index b851e7195..ecd85e4a5 100644 --- a/src/feature/rend/rendcache.c +++ b/src/feature/rend/rendcache.c @@ -854,7 +854,7 @@ rend_cache_store_v2_desc_as_client(const char *desc, *entry = NULL; } if (base32_decode(want_desc_id, sizeof(want_desc_id), - desc_id_base32, strlen(desc_id_base32)) != 0) { + desc_id_base32, strlen(desc_id_base32)) < 0) { log_warn(LD_BUG, "Couldn't decode base32 %s for descriptor id.", escaped_safe_str_client(desc_id_base32)); goto err; @@ -1005,4 +1005,3 @@ rend_cache_store_v2_desc_as_client(const char *desc, tor_free(intro_content); return retval; } - diff --git a/src/lib/encoding/binascii.c b/src/lib/encoding/binascii.c index 067db075a..a7662658f 100644 --- a/src/lib/encoding/binascii.c +++ b/src/lib/encoding/binascii.c @@ -84,7 +84,7 @@ base32_encode(char *dest, size_t destlen, const char *src, size_t srclen) } /** Implements base32 decoding as in RFC 4648. - * Returns 0 if successful, -1 otherwise. + * Return the number of bytes decoded if successful; -1 otherwise. */ int base32_decode(char *dest, size_t destlen, const char *src, size_t srclen) @@ -147,7 +147,7 @@ base32_decode(char *dest, size_t destlen, const char *src, size_t srclen) memset(tmp, 0, srclen); /* on the heap, this should be safe */ tor_free(tmp); tmp = NULL; - return 0; + return i; } #define BASE64_OPENSSL_LINELEN 64 diff --git a/src/test/test_crypto.c b/src/test/test_crypto.c index 81d2fa6f3..e924cea42 100644 --- a/src/test/test_crypto.c +++ b/src/test/test_crypto.c @@ -1865,13 +1865,13 @@ test_crypto_base32_decode(void *arg) /* Encode and decode a random string. */ base32_encode(encoded, 96 + 1, plain, 60); res = base32_decode(decoded, 60, encoded, 96); - tt_int_op(res,OP_EQ, 0); + tt_int_op(res, OP_EQ, 60); tt_mem_op(plain,OP_EQ, decoded, 60); /* Encode, uppercase, and decode a random string. */ base32_encode(encoded, 96 + 1, plain, 60); tor_strupper(encoded); res = base32_decode(decoded, 60, encoded, 96); - tt_int_op(res,OP_EQ, 0); + tt_int_op(res, OP_EQ, 60); tt_mem_op(plain,OP_EQ, decoded, 60); /* Change encoded string and decode. */ if (encoded[0] == 'A' || encoded[0] == 'a') @@ -1879,12 +1879,12 @@ test_crypto_base32_decode(void *arg) else encoded[0] = 'A'; res = base32_decode(decoded, 60, encoded, 96); - tt_int_op(res,OP_EQ, 0); + tt_int_op(res, OP_EQ, 60); tt_mem_op(plain,OP_NE, decoded, 60); /* Bad encodings. */ encoded[0] = '!'; res = base32_decode(decoded, 60, encoded, 96); - tt_int_op(0, OP_GT, res); + tt_int_op(res, OP_LT, 0); done: ; diff --git a/src/test/test_util_format.c b/src/test/test_util_format.c index fd57125b8..f91171dc2 100644 --- a/src/test/test_util_format.c +++ b/src/test/test_util_format.c @@ -346,7 +346,7 @@ test_util_format_base32_decode(void *arg) const char *src = "mjwgc2dcnrswqmjs"; ret = base32_decode(dst, strlen(expected), src, strlen(src)); - tt_int_op(ret, OP_EQ, 0); + tt_int_op(ret, OP_EQ, 10); tt_str_op(expected, OP_EQ, dst); } @@ -357,7 +357,7 @@ test_util_format_base32_decode(void *arg) const char *src = "mjwgc2dcnrswq"; ret = base32_decode(dst, strlen(expected), src, strlen(src)); - tt_int_op(ret, OP_EQ, 0); + tt_int_op(ret, OP_EQ, 8); tt_mem_op(expected, OP_EQ, dst, strlen(expected)); }

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[tor/master] Merge branch 'tor-github/pr/611'
by asn＠torproject.org 26 Feb '19

26 Feb '19

commit 7fbfdf2af731f500e3df3ca8207e6822f87f1bc9 Merge: 626e6d2c3 f632335fe Author: George Kadianakis <desnacked(a)riseup.net> Date: Tue Feb 26 12:33:23 2019 +0200 Merge branch 'tor-github/pr/611' changes/ticket28913 | 4 ++++ src/feature/control/control.c | 3 ++- src/feature/hs/hs_client.c | 5 ++++- src/feature/hs/hs_common.c | 3 ++- src/feature/hs/hs_service.c | 3 ++- src/feature/rend/rendcache.c | 8 ++++---- src/feature/rend/rendcommon.c | 5 +++-- src/feature/rend/rendparse.c | 17 +++++++++++------ src/lib/encoding/binascii.c | 4 ++-- src/test/fuzz/fuzz_strops.c | 8 +------- src/test/test_crypto.c | 8 ++++---- src/test/test_util_format.c | 4 ++-- 12 files changed, 41 insertions(+), 31 deletions(-)

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[tor/master] Add base32 to the round-trip fuzzer
by asn＠torproject.org 26 Feb '19

26 Feb '19

commit 22c5ad682cdd2e6a9a2124585302b2335361ab80 Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Dec 20 08:37:04 2018 -0500 Add base32 to the round-trip fuzzer --- src/test/fuzz/fuzz_strops.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/src/test/fuzz/fuzz_strops.c b/src/test/fuzz/fuzz_strops.c index 5da590acf..cfc7fc506 100644 --- a/src/test/fuzz/fuzz_strops.c +++ b/src/test/fuzz/fuzz_strops.c @@ -86,15 +86,13 @@ b16_enc(const chunk_t *inp) return ch; } -#if 0 static chunk_t * b32_dec(const chunk_t *inp) { chunk_t *ch = chunk_new(inp->len);//XXXX int r = base32_decode((char *)ch->buf, ch->len, (char *)inp->buf, inp->len); if (r >= 0) { - ch->len = r; // XXXX we need some way to get the actual length of - // XXXX the output here. + ch->len = r; } else { chunk_free(ch); } @@ -108,7 +106,6 @@ b32_enc(const chunk_t *inp) ch->len = strlen((char *) ch->buf); return ch; } -#endif static chunk_t * b64_dec(const chunk_t *inp) @@ -222,10 +219,7 @@ fuzz_main(const uint8_t *stdin_buf, size_t data_size) ENCODE_ROUNDTRIP(b16_enc, b16_dec, chunk_free_); break; case 1: - /* - XXXX see notes above about our base-32 functions. ENCODE_ROUNDTRIP(b32_enc, b32_dec, chunk_free_); - */ break; case 2: ENCODE_ROUNDTRIP(b64_enc, b64_dec, chunk_free_);

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[torspec/master] Merge remote-tracking branch 'tor-github/pr/58'
by nickm＠torproject.org 25 Feb '19

25 Feb '19

commit 0878375fc3d9df7845138f4e7744e3855cf17cc5 Merge: 8e71376 f572865 Author: Nick Mathewson <nickm(a)torproject.org> Date: Mon Feb 25 14:34:50 2019 -0500 Merge remote-tracking branch 'tor-github/pr/58' bandwidth-file-spec.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

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[torspec/master] bandwidth-file: Fix a typo, the file is not a fallback file
by nickm＠torproject.org 25 Feb '19

25 Feb '19

commit f572865b37a6f11a220ff789b8a126c781c10a28 Author: teor <teor(a)torproject.org> Date: Mon Feb 25 20:15:59 2019 +1000 bandwidth-file: Fix a typo, the file is not a fallback file Fixes bug 29578. --- bandwidth-file-spec.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/bandwidth-file-spec.txt b/bandwidth-file-spec.txt index adb6b49..a241108 100644 --- a/bandwidth-file-spec.txt +++ b/bandwidth-file-spec.txt @@ -44,7 +44,7 @@ 1.4. Format Versions - 1.0.0 - The legacy fallback Bandwidth List format + 1.0.0 - The legacy Bandwidth List format 1.1.0 - Add a header containing information about the bandwidth file. Document the sbws and Torflow relay line keys.

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tor-commits February 2019