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[tor-commits] [tor/release-0.4.4] v3 control: Persist ONION_CLIENT_AUTH_ADD client name



commit 6e37086f85aa3e421ebc6f4d64de1cd82bcdeaa6
Author: Neel Chauhan <neel@xxxxxxxxx>
Date:   Thu Aug 6 22:32:30 2020 -0700

    v3 control: Persist ONION_CLIENT_AUTH_ADD client name
---
 changes/ticket40089              |  4 ++++
 src/feature/control/control_hs.c | 11 ++++++++++
 src/feature/hs/hs_client.c       |  2 ++
 src/feature/hs/hs_client.h       |  3 +++
 src/test/test_hs_control.c       | 47 +++++++++++++++++++++++++++++++++++++---
 5 files changed, 64 insertions(+), 3 deletions(-)

diff --git a/changes/ticket40089 b/changes/ticket40089
new file mode 100644
index 0000000000..121e8e9820
--- /dev/null
+++ b/changes/ticket40089
@@ -0,0 +1,4 @@
+  o Minor features (control port):
+    - If a ClientName was specified in ONION_CLIENT_AUTH_ADD for an
+      onion service, display it when we use ONION_CLIENT_AUTH_VIEW
+      on it. Closes ticket 40089. Patch by Neel Chauhan.
diff --git a/src/feature/control/control_hs.c b/src/feature/control/control_hs.c
index c8de03b318..54b767cd0d 100644
--- a/src/feature/control/control_hs.c
+++ b/src/feature/control/control_hs.c
@@ -134,6 +134,13 @@ handle_control_onion_client_auth_add(control_connection_t *conn,
         }
       } SMARTLIST_FOREACH_END(flag);
     }
+    if (!strcasecmp(line->key, "ClientName")) {
+      if (strlen(line->value) > REND_CLIENTNAME_MAX_LEN) {
+        control_printf_endreply(conn, 512, "ClientName longer than %d chars",
+                                REND_CLIENTNAME_MAX_LEN);
+      }
+      creds->client_name = tor_strdup(line->value);
+    }
   }
 
   hs_client_register_auth_status_t register_status;
@@ -255,6 +262,10 @@ encode_client_auth_cred_for_control_port(
     }
   }
 
+  if (cred->client_name) {
+    smartlist_add_asprintf(control_line, " ClientName=%s", cred->client_name);
+  }
+
   /* Join all the components into a single string */
   msg_str = smartlist_join_strings(control_line, "", 0, NULL);
 
diff --git a/src/feature/hs/hs_client.c b/src/feature/hs/hs_client.c
index d9c5d8ca1d..fc1fd76efc 100644
--- a/src/feature/hs/hs_client.c
+++ b/src/feature/hs/hs_client.c
@@ -2168,6 +2168,8 @@ client_service_authorization_free_(hs_client_service_authorization_t *auth)
     return;
   }
 
+  tor_free(auth->client_name);
+
   memwipe(auth, 0, sizeof(*auth));
   tor_free(auth);
 }
diff --git a/src/feature/hs/hs_client.h b/src/feature/hs/hs_client.h
index a11caa309f..88dede8126 100644
--- a/src/feature/hs/hs_client.h
+++ b/src/feature/hs/hs_client.h
@@ -71,6 +71,9 @@ typedef struct hs_client_service_authorization_t {
   /** An onion address that is used to connect to the onion service. */
   char onion_address[HS_SERVICE_ADDR_LEN_BASE32+1];
 
+  /** An client name used to connect to the onion service. */
+  char *client_name;
+
   /* Optional flags for this client. */
   int flags;
 } hs_client_service_authorization_t;
diff --git a/src/test/test_hs_control.c b/src/test/test_hs_control.c
index 1f574179e9..80bbf547dc 100644
--- a/src/test/test_hs_control.c
+++ b/src/test/test_hs_control.c
@@ -212,7 +212,8 @@ test_hs_control_good_onion_client_auth_add(void *arg)
   MOCK(connection_write_to_buf_impl_, connection_write_to_buf_mock);
 
   int retval;
-  ed25519_public_key_t service_identity_pk_2fv, service_identity_pk_jt4;
+  ed25519_public_key_t service_identity_pk_2fv, service_identity_pk_jt4,
+                       service_identity_pk_jam;
   control_connection_t conn;
   char *args = NULL;
   char *cp1 = NULL;
@@ -238,6 +239,12 @@ test_hs_control_good_onion_client_auth_add(void *arg)
                  &service_identity_pk_jt4,
                  NULL, NULL);
     tt_int_op(retval, OP_EQ, 0);
+
+    retval = hs_parse_address(
+                 "jamie3vkiwibfiwucd6vxijskbhpjdyajmzeor4mc4i7yopvpo4p7cyd",
+                 &service_identity_pk_jam,
+                 NULL, NULL);
+    tt_int_op(retval, OP_EQ, 0);
   }
 
   digest256map_t *client_auths = get_hs_client_auths_map();
@@ -264,6 +271,20 @@ test_hs_control_good_onion_client_auth_add(void *arg)
   retval = handle_control_command(&conn, (uint32_t) strlen(args), args);
   tt_int_op(retval, OP_EQ, 0);
 
+  /* Check contents */
+  cp1 = buf_get_contents(TO_CONN(&conn)->outbuf, &sz);
+  tt_str_op(cp1, OP_EQ, "250 OK\r\n");
+  tor_free(cp1);
+  tor_free(args);
+
+  /* Register second service (even with an unrecognized argument) */
+  args = tor_strdup("jamie3vkiwibfiwucd6vxijskbhpjdyajmzeor4mc4i7yopvpo4p7cyd "
+           "x25519:FCV0c0ELDKKDpSFgVIB8Yow8Evj5iD+GoiTtK878NkQ= "
+           "ClientName=MeganNicole ");
+
+  retval = handle_control_command(&conn, (uint32_t) strlen(args), args);
+  tt_int_op(retval, OP_EQ, 0);
+
   /* Check contents */
   cp1 = buf_get_contents(TO_CONN(&conn)->outbuf, &sz);
   tt_str_op(cp1, OP_EQ, "250 OK\r\n");
@@ -271,7 +292,7 @@ test_hs_control_good_onion_client_auth_add(void *arg)
 
   client_auths = get_hs_client_auths_map();
   tt_assert(client_auths);
-  tt_uint_op(digest256map_size(client_auths), OP_EQ, 2);
+  tt_uint_op(digest256map_size(client_auths), OP_EQ, 3);
 
   hs_client_service_authorization_t *client_2fv =
     digest256map_get(client_auths, service_identity_pk_2fv.pubkey);
@@ -283,6 +304,11 @@ test_hs_control_good_onion_client_auth_add(void *arg)
   tt_assert(client_jt4);
   tt_int_op(client_jt4->flags, OP_EQ, 0);
 
+  hs_client_service_authorization_t *client_jam =
+    digest256map_get(client_auths, service_identity_pk_jam.pubkey);
+  tt_assert(client_jam);
+  tt_int_op(client_jam->flags, OP_EQ, 0);
+
   /* Now let's VIEW the auth credentials */
   tor_free(conn.current_cmd);
   conn.current_cmd = tor_strdup("ONION_CLIENT_AUTH_VIEW");
@@ -294,6 +320,9 @@ test_hs_control_good_onion_client_auth_add(void *arg)
 #define VIEW_CORRECT_REPLY_NO_ADDR "250-ONION_CLIENT_AUTH_VIEW\r\n"   \
   "250-CLIENT 2fvhjskjet3n5syd6yfg5lhvwcs62bojmthr35ko5bllr3iqdb4ctdyd "  \
     "x25519:iJ1tjKCrMAbiFT2bVrCjhbfMDnE1fpaRbIS5ZHKUvEQ=\r\n"   \
+  "250-CLIENT jamie3vkiwibfiwucd6vxijskbhpjdyajmzeor4mc4i7yopvpo4p7cyd " \
+    "x25519:FCV0c0ELDKKDpSFgVIB8Yow8Evj5iD+GoiTtK878NkQ= " \
+    "ClientName=MeganNicole\r\n" \
   "250-CLIENT jt4grrjwzyz3pjkylwfau5xnjaj23vxmhskqaeyfhrfylelw4hvxcuyd " \
     "x25519:eIIdIGoSZwI2Q/lSzpf92akGki5I+PZIDz37MA5BhlA=\r\n"             \
   "250 OK\r\n"
@@ -364,7 +393,19 @@ test_hs_control_good_onion_client_auth_add(void *arg)
 
   /* Now also remove the other one */
   tor_free(args);
-  args =tor_strdup("2fvhjskjet3n5syd6yfg5lhvwcs62bojmthr35ko5bllr3iqdb4ctdyd");
+  args =
+    tor_strdup("2fvhjskjet3n5syd6yfg5lhvwcs62bojmthr35ko5bllr3iqdb4ctdyd");
+
+  retval = handle_control_command(&conn, (uint32_t) strlen(args), args);
+  tt_int_op(retval, OP_EQ, 0);
+  cp1 = buf_get_contents(TO_CONN(&conn)->outbuf, &sz);
+  tt_str_op(cp1, OP_EQ, "250 OK\r\n");
+  tor_free(cp1);
+
+  /* Now also remove the other one */
+  tor_free(args);
+  args =
+    tor_strdup("jamie3vkiwibfiwucd6vxijskbhpjdyajmzeor4mc4i7yopvpo4p7cyd");
 
   retval = handle_control_command(&conn, (uint32_t) strlen(args), args);
   tt_int_op(retval, OP_EQ, 0);



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