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Diffstat (limited to 'src/test/test_socks.c')
-rw-r--r--src/test/test_socks.c593
1 files changed, 556 insertions, 37 deletions
diff --git a/src/test/test_socks.c b/src/test/test_socks.c
index bb1be11f2b..9ae7530e22 100644
--- a/src/test/test_socks.c
+++ b/src/test/test_socks.c
@@ -6,7 +6,9 @@
#include "or.h"
#include "buffers.h"
#include "config.h"
+#include "proto_socks.h"
#include "test.h"
+#include "log_test_helpers.h"
typedef struct socks_test_data_t {
socks_request_t *req;
@@ -43,7 +45,7 @@ static const struct testcase_setup_t socks_setup = {
buf_t *buf = testdata->buf; \
socks_request_t *socks = testdata->req;
#define ADD_DATA(buf, s) \
- write_to_buf(s, sizeof(s)-1, buf)
+ buf_add(buf, s, sizeof(s)-1)
static void
socks_request_clear(socks_request_t *socks)
@@ -61,8 +63,9 @@ test_socks_4_unsupported_commands(void *ptr)
/* SOCKS 4 Send BIND [02] to IP address 2.2.2.2:4369 */
ADD_DATA(buf, "\x04\x02\x11\x11\x02\x02\x02\x02\x00");
- tt_assert(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks) == -1);
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, -1);
tt_int_op(4,OP_EQ, socks->socks_version);
tt_int_op(0,OP_EQ, socks->replylen); /* XXX: shouldn't tor reply? */
@@ -80,8 +83,9 @@ test_socks_4_supported_commands(void *ptr)
/* SOCKS 4 Send CONNECT [01] to IP address 2.2.2.2:4370 */
ADD_DATA(buf, "\x04\x01\x11\x12\x02\x02\x02\x03\x00");
- tt_assert(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks) == 1);
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, 1);
tt_int_op(4,OP_EQ, socks->socks_version);
tt_int_op(0,OP_EQ, socks->replylen); /* XXX: shouldn't tor reply? */
tt_int_op(SOCKS_COMMAND_CONNECT,OP_EQ, socks->command);
@@ -95,8 +99,8 @@ test_socks_4_supported_commands(void *ptr)
/* SOCKS 4 Send CONNECT [01] to IP address 2.2.2.2:4369 with userid*/
ADD_DATA(buf, "\x04\x01\x11\x12\x02\x02\x02\x04me\x00");
- tt_assert(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks) == 1);
+ tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0),
+ OP_EQ, 1);
tt_int_op(4,OP_EQ, socks->socks_version);
tt_int_op(0,OP_EQ, socks->replylen); /* XXX: shouldn't tor reply? */
tt_int_op(SOCKS_COMMAND_CONNECT,OP_EQ, socks->command);
@@ -112,8 +116,9 @@ test_socks_4_supported_commands(void *ptr)
/* SOCKS 4a Send RESOLVE [F0] request for torproject.org */
ADD_DATA(buf, "\x04\xF0\x01\x01\x00\x00\x00\x02me\x00torproject.org\x00");
- tt_assert(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks) == 1);
+ tt_int_op(fetch_from_buf_socks(buf, socks, 1,
+ get_options()->SafeSocks),
+ OP_EQ, 1);
tt_int_op(4,OP_EQ, socks->socks_version);
tt_int_op(0,OP_EQ, socks->replylen); /* XXX: shouldn't tor reply? */
tt_str_op("torproject.org",OP_EQ, socks->address);
@@ -124,6 +129,83 @@ test_socks_4_supported_commands(void *ptr)
;
}
+static void
+test_socks_4_bad_arguments(void *ptr)
+{
+ SOCKS_TEST_INIT();
+ setup_capture_of_logs(LOG_DEBUG);
+
+ /* Try with 0 IPv4 address */
+ ADD_DATA(buf, "\x04\x01\x00\x50\x00\x00\x00\x00\x00");
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, -1);
+ buf_clear(buf);
+ expect_log_msg_containing("Port or DestIP is zero.");
+ mock_clean_saved_logs();
+
+ /* Try with 0 port */
+ ADD_DATA(buf, "\x04\x01\x00\x00\x01\x02\x03\x04\x00");
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, -1);
+ buf_clear(buf);
+ expect_log_msg_containing("Port or DestIP is zero.");
+ mock_clean_saved_logs();
+
+ /* Try with 2000-byte username (!) */
+ ADD_DATA(buf, "\x04\x01\x00\x50\x01\x02\x03\x04");
+ int i;
+ for (i = 0; i < 200; ++i) {
+ ADD_DATA(buf, "1234567890");
+ }
+ ADD_DATA(buf, "\x00");
+ tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0),
+ OP_EQ, -1);
+ buf_clear(buf);
+ expect_log_msg_containing("user name too long; rejecting.");
+ mock_clean_saved_logs();
+
+ /* Try with 2000-byte hostname */
+ ADD_DATA(buf, "\x04\x01\x00\x50\x00\x00\x00\x01\x00");
+ for (i = 0; i < 200; ++i) {
+ ADD_DATA(buf, "1234567890");
+ }
+ ADD_DATA(buf, "\x00");
+ {
+ const char *p;
+ size_t s;
+ buf_pullup(buf, 9999, &p, &s);
+ }
+ tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0),
+ OP_EQ, -1);
+ buf_clear(buf);
+ expect_log_msg_containing("Destaddr too long. Rejecting.");
+ mock_clean_saved_logs();
+
+ /* Try with 2000-byte hostname, not terminated. */
+ ADD_DATA(buf, "\x04\x01\x00\x50\x00\x00\x00\x01\x00");
+ for (i = 0; i < 200; ++i) {
+ ADD_DATA(buf, "1234567890");
+ }
+ tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0),
+ OP_EQ, -1);
+ buf_clear(buf);
+ expect_log_msg_containing("Destaddr too long.");
+ mock_clean_saved_logs();
+
+ /* Socks4, bogus hostname */
+ ADD_DATA(buf, "\x04\x01\x00\x50\x00\x00\x00\x01\x00" "---\x00" );
+ tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0), OP_EQ, -1);
+ buf_clear(buf);
+ expect_log_msg_containing("Your application (using socks4 to port 80) "
+ "gave Tor a malformed hostname: ");
+ mock_clean_saved_logs();
+
+ done:
+ teardown_capture_of_logs();
+}
+
/** Perform unsupported SOCKS 5 commands */
static void
test_socks_5_unsupported_commands(void *ptr)
@@ -199,10 +281,28 @@ test_socks_5_supported_commands(void *ptr)
tt_int_op(0,OP_EQ, buf_datalen(buf));
socks_request_clear(socks);
+ /* SOCKS 5 Send CONNECT [01] to one of the ipv6 addresses for
+ torproject.org:80 */
+ ADD_DATA(buf, "\x05\x01\x00");
+ ADD_DATA(buf, "\x05\x01\x00\x04"
+ "\x20\x02\x41\xb8\x02\x02\x0d\xeb\x02\x13\x21\xff\xfe\x20\x14\x26"
+ "\x00\x50");
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),OP_EQ, 1);
+ tt_int_op(5,OP_EQ, socks->socks_version);
+ tt_int_op(2,OP_EQ, socks->replylen);
+ tt_int_op(5,OP_EQ, socks->reply[0]);
+ tt_int_op(0,OP_EQ, socks->reply[1]);
+ tt_str_op("[2002:41b8:202:deb:213:21ff:fe20:1426]",OP_EQ, socks->address);
+ tt_int_op(80,OP_EQ, socks->port);
+
+ tt_int_op(0,OP_EQ, buf_datalen(buf));
+ socks_request_clear(socks);
+
/* SOCKS 5 Send CONNECT [01] to FQDN torproject.org:4369 */
ADD_DATA(buf, "\x05\x01\x00");
ADD_DATA(buf, "\x05\x01\x00\x03\x0Etorproject.org\x11\x11");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ tt_int_op(fetch_from_buf_socks(buf, socks, 1,
get_options()->SafeSocks),OP_EQ, 1);
tt_int_op(5,OP_EQ, socks->socks_version);
@@ -218,8 +318,9 @@ test_socks_5_supported_commands(void *ptr)
/* SOCKS 5 Send RESOLVE [F0] request for torproject.org:4369 */
ADD_DATA(buf, "\x05\x01\x00");
ADD_DATA(buf, "\x05\xF0\x00\x03\x0Etorproject.org\x01\x02");
- tt_assert(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks) == 1);
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, 1);
tt_int_op(5,OP_EQ, socks->socks_version);
tt_int_op(2,OP_EQ, socks->replylen);
tt_int_op(5,OP_EQ, socks->reply[0]);
@@ -229,47 +330,46 @@ test_socks_5_supported_commands(void *ptr)
tt_int_op(0,OP_EQ, buf_datalen(buf));
socks_request_clear(socks);
- /* SOCKS 5 Should reject RESOLVE [F0] request for IPv4 address
+ /* SOCKS 5 Should NOT reject RESOLVE [F0] request for IPv4 address
* string if SafeSocks is enabled. */
ADD_DATA(buf, "\x05\x01\x00");
ADD_DATA(buf, "\x05\xF0\x00\x03\x07");
ADD_DATA(buf, "8.8.8.8");
- ADD_DATA(buf, "\x01\x02");
- tt_assert(fetch_from_buf_socks(buf,socks,get_options()->TestSocks,1)
- == -1);
+ ADD_DATA(buf, "\x11\x11");
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks, 1),
+ OP_EQ, 1);
- tt_int_op(5,OP_EQ,socks->socks_version);
- tt_int_op(10,OP_EQ,socks->replylen);
- tt_int_op(5,OP_EQ,socks->reply[0]);
- tt_int_op(SOCKS5_NOT_ALLOWED,OP_EQ,socks->reply[1]);
- tt_int_op(1,OP_EQ,socks->reply[3]);
+ tt_str_op("8.8.8.8", OP_EQ, socks->address);
+ tt_int_op(4369, OP_EQ, socks->port);
+
+ tt_int_op(0, OP_EQ, buf_datalen(buf));
socks_request_clear(socks);
- /* SOCKS 5 should reject RESOLVE [F0] reject for IPv6 address
+ /* SOCKS 5 should NOT reject RESOLVE [F0] reject for IPv6 address
* string if SafeSocks is enabled. */
ADD_DATA(buf, "\x05\x01\x00");
ADD_DATA(buf, "\x05\xF0\x00\x03\x27");
ADD_DATA(buf, "2001:0db8:85a3:0000:0000:8a2e:0370:7334");
ADD_DATA(buf, "\x01\x02");
- tt_assert(fetch_from_buf_socks(buf,socks,get_options()->TestSocks,1)
- == -1);
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks, 1),
+ OP_EQ, -1);
- tt_int_op(5,OP_EQ,socks->socks_version);
- tt_int_op(10,OP_EQ,socks->replylen);
- tt_int_op(5,OP_EQ,socks->reply[0]);
- tt_int_op(SOCKS5_NOT_ALLOWED,OP_EQ,socks->reply[1]);
- tt_int_op(1,OP_EQ,socks->reply[3]);
+ tt_str_op("2001:0db8:85a3:0000:0000:8a2e:0370:7334", OP_EQ, socks->address);
+ tt_int_op(258, OP_EQ, socks->port);
+
+ tt_int_op(0, OP_EQ, buf_datalen(buf));
socks_request_clear(socks);
/* SOCKS 5 Send RESOLVE_PTR [F1] for IP address 2.2.2.5 */
ADD_DATA(buf, "\x05\x01\x00");
ADD_DATA(buf, "\x05\xF1\x00\x01\x02\x02\x02\x05\x01\x03");
- tt_assert(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks) == 1);
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, 1);
tt_int_op(5,OP_EQ, socks->socks_version);
tt_int_op(2,OP_EQ, socks->replylen);
tt_int_op(5,OP_EQ, socks->reply[0]);
@@ -380,9 +480,9 @@ test_socks_5_authenticate_with_data(void *ptr)
/* SOCKS 5 Send username/password */
/* SOCKS 5 Send CONNECT [01] to IP address 2.2.2.2:4369 */
ADD_DATA(buf, "\x01\x02me\x03you\x05\x01\x00\x01\x02\x02\x02\x02\x11\x11");
- tt_assert(fetch_from_buf_socks(buf, socks,
- get_options()->TestSocks,
- get_options()->SafeSocks) == 1);
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, 1);
tt_int_op(5,OP_EQ, socks->socks_version);
tt_int_op(2,OP_EQ, socks->replylen);
tt_int_op(1,OP_EQ, socks->reply[0]);
@@ -400,6 +500,48 @@ test_socks_5_authenticate_with_data(void *ptr)
;
}
+/** Try to negotiate an unsupported authentication type */
+static void
+test_socks_5_auth_unsupported_type(void *ptr)
+{
+ SOCKS_TEST_INIT();
+
+ /* None of these authentication types are recognized. */
+ ADD_DATA(buf, "\x05\x03\x99\x21\x10");
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, -1);
+ tt_int_op(0,OP_EQ, socks->socks_version);
+ tt_int_op(2,OP_EQ, socks->replylen);
+ tt_int_op(5,OP_EQ, socks->reply[0]);
+ tt_int_op(0xff,OP_EQ, socks->reply[1]);
+
+ done:
+ ;
+}
+
+/** Try to negotiate an unsupported version of username/password auth. */
+static void
+test_socks_5_auth_unsupported_version(void *ptr)
+{
+ SOCKS_TEST_INIT();
+
+ /* Negotiate username/password */
+ ADD_DATA(buf, "\x05\x01\x02");
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, 0);
+ tt_int_op(0,OP_EQ, buf_datalen(buf)); /* buf should be drained */
+ /* Now, suggest an unrecognized username/password version */
+ ADD_DATA(buf, "\x02\x05" "hello" "\x05" "world");
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, -1);
+
+ done:
+ ;
+}
+
/** Perform SOCKS 5 authentication before method negotiated */
static void
test_socks_5_auth_before_negotiation(void *ptr)
@@ -408,9 +550,9 @@ test_socks_5_auth_before_negotiation(void *ptr)
/* SOCKS 5 Send username/password */
ADD_DATA(buf, "\x01\x02me\x02me");
- tt_assert(fetch_from_buf_socks(buf, socks,
- get_options()->TestSocks,
- get_options()->SafeSocks) == -1);
+ tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
+ get_options()->SafeSocks),
+ OP_EQ, -1);
tt_int_op(0,OP_EQ, socks->socks_version);
tt_int_op(0,OP_EQ, socks->replylen);
tt_int_op(0,OP_EQ, socks->reply[0]);
@@ -492,20 +634,397 @@ test_socks_5_malformed_commands(void *ptr)
;
}
+static void
+test_socks_5_bad_arguments(void *ptr)
+{
+ SOCKS_TEST_INIT();
+ setup_capture_of_logs(LOG_DEBUG);
+
+ /* Socks5, bogus hostname */
+ ADD_DATA(buf, "\x05\x01\x00" "\x05\x01\x00\x03\x03" "---" "\x00\x50" );
+ tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0), OP_EQ, -1);
+ buf_clear(buf);
+ expect_log_msg_containing("Your application (using socks5 to port 80) "
+ "gave Tor a malformed hostname: ");
+ mock_clean_saved_logs();
+ socks_request_clear(socks);
+
+ done:
+ teardown_capture_of_logs();
+}
+
+/** check for correct behavior when the socks command has not arrived. */
+static void
+test_socks_truncated(void *ptr)
+{
+ const struct {
+ enum { NONE, AUTH, ALL } setup;
+ const char *body;
+ size_t len;
+ } commands[] = {
+ /* SOCKS4 */
+ /* Connect, to an IP. */
+ { NONE, "\x04\x01\x05\x05\x01\x02\x03\x04\x00", 9},
+ /* Connect, to an IP, with authentication. */
+ { NONE, "\x04\x01\x05\x05\x01\x02\x03\x04hello\x00", 14},
+ /* SOCKS4A */
+ /* Connect, to a hostname */
+ { NONE, "\x04\x01\x09\x09\x00\x00\x00\x01\x00www.example.com\x00", 25},
+ /* Connect, to a hostname, with authentication */
+ { NONE, "\x04\x01\x09\x09\x00\x00\x00\x01hi\x00www.example.com\x00", 27},
+ /* SOCKS5 */
+ /* initial handshake */
+ { NONE, "\x05\x00", 2 },
+ /* no-auth handshake */
+ { NONE, "\x05\x03\x99\x21\x10", 5 },
+ /* SOCSK5, username-password, all empty. */
+ { AUTH, "\x01\x00\x00", 3 },
+ /* SOCSK5, username-password, 1 char each. */
+ { AUTH, "\x01\x01x\x01y", 5 },
+ /* SOCSK5, username-password, max length. */
+ { AUTH, "\x01\xff"
+ "Ogni tempo ha il suo fascismo: se ne notano i segni premonitori "
+ "dovunque la concentrazione di potere nega al cittadino la "
+ "possibilit\xc3\xa0 e la capacit\xc3\xa0 di esprimere ed attuare la "
+ "sua volont\xc3\xa0. A questo si arriva in molti modi, non "
+ "necessariamente col terror"
+ "\xff"
+ "e dell'intimidazione poliziesca, ma anche negando o distorcendo "
+ "l'informazione, inquinando la giustizia, paralizzando la scuola, "
+ "diffondendo in molti modi sottili la nostalgia per un mondo in cui "
+ "regnava sovrano l'ordine, ed in cui la sicurezza dei pochi "
+ /* privilegiati riposava sul lavoro forzato e sul silenzio forzato dei
+ molti. -- Primo Levi */ , 513 },
+ /* Socks5, IPv4 address */
+ { ALL, "\x05\x01\x00\x01\x01\x02\x03\x04\x20\x20", 10 },
+ /* Socks5, IPv6 address */
+ { ALL, "\x05\x01\x00\x04"
+ "\x49\x20\x48\x41\x5a\x20\x45\x41\x53\x54\x45\x52\x20\x45\x47\x47"
+ "\x20\x20", 22 },
+ /* Socks5, hostname, empty. */
+ { ALL, "\x05\x01\x00\x03" "\x00" "\x00\x50", 7 },
+ /* Socks5, hostname, moderate. */
+ { ALL, "\x05\x01\x00\x03" "\x11" "onion.example.com" "\x00\x50", 24 },
+ /* Socks5, hostname, maximum. */
+ { ALL, "\x05\x01\x00\x03" "\xff"
+ "whatsoever.I.shall.see.or.hear.in.the.course.of.my.profession.as.well."
+ "as.outside.my.profession.in.my.intercourse.with.men.if.it.be.what."
+ "should.not.be.published.abroad.I.will.never.divulge.holding.such."
+ "things.to.be.holy.secrets.x.hippocratic.oath.wikipedia"
+ "\x00\x50", 262 },
+ };
+ unsigned i, j;
+ SOCKS_TEST_INIT();
+ for (i = 0; i < ARRAY_LENGTH(commands); ++i) {
+ for (j = 0; j < commands[i].len; ++j) {
+ switch (commands[i].setup) {
+ default: /* Falls through */
+ case NONE:
+ /* This test calls for no setup on the socks state. */
+ break;
+ case AUTH:
+ /* This test calls for the socks state to be waiting for
+ * username/password authentication */
+ ADD_DATA(buf, "\x05\x01\x02");
+ tt_int_op(0, OP_EQ, fetch_from_buf_socks(buf, socks, 0, 0));
+ tt_int_op(0, OP_EQ, buf_datalen(buf));
+ break;
+ case ALL:
+ /* This test calls for the socks state to be waiting for
+ * the connection request */
+ ADD_DATA(buf, "\x05\x01\x00");
+ tt_int_op(0, OP_EQ, fetch_from_buf_socks(buf, socks, 0, 0));
+ tt_int_op(0, OP_EQ, buf_datalen(buf));
+ }
+
+ TT_BLATHER(("Checking command %u, length %u, omitting char %u", i, j,
+ (unsigned)commands[i].body[j]));
+ buf_add(buf, commands[i].body, j);
+ /* This should return 0 meaning "not done yet" */
+ tt_int_op(0, OP_EQ, fetch_from_buf_socks(buf, socks, 0, 0));
+ tt_uint_op(j, OP_EQ, buf_datalen(buf)); /* Nothing was drained */
+ buf_clear(buf);
+ socks_request_free(testdata->req);
+ socks = testdata->req = socks_request_new();
+ }
+ }
+ done:
+ ;
+}
+
+static void
+test_socks_wrong_protocol(void *ptr)
+{
+ SOCKS_TEST_INIT();
+ setup_capture_of_logs(LOG_DEBUG);
+
+ /* HTTP request. */
+ ADD_DATA(buf, "GET /index.html HTTP/1.0" );
+ tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0), OP_EQ, -1);
+ buf_clear(buf);
+ expect_log_msg_containing("Socks version 71 not recognized. "
+ "(This port is not an HTTP proxy;");
+ mock_clean_saved_logs();
+ socks_request_clear(socks);
+
+ done:
+ teardown_capture_of_logs();
+}
+
+/* Check our client-side socks4 parsing (that is to say, our parsing of
+ * server responses).
+ */
+static void
+test_socks_client_v4(void *arg)
+{
+ (void)arg;
+ buf_t *buf = buf_new();
+ char *reason = NULL;
+
+ /* Legit socks4 response, success */
+ ADD_DATA(buf, "\x04\x5a\x20\x25\x01\x02\x03\x04");
+ tt_int_op(1, OP_EQ,
+ fetch_from_buf_socks_client(buf, PROXY_SOCKS4_WANT_CONNECT_OK,
+ &reason));
+ tt_ptr_op(reason, OP_EQ, NULL);
+ tt_int_op(buf_datalen(buf), OP_EQ, 0);
+
+ /* Legit socks4 response, failure. */
+ ADD_DATA(buf, "\x04\x5b\x20\x25\x01\x02\x03\x04");
+ tt_int_op(-1, OP_EQ,
+ fetch_from_buf_socks_client(buf, PROXY_SOCKS4_WANT_CONNECT_OK,
+ &reason));
+ tt_ptr_op(reason, OP_NE, NULL);
+ tt_str_op(reason, OP_EQ, "server rejected connection");
+
+ done:
+ buf_free(buf);
+ tor_free(reason);
+}
+
+/* Check our client-side socks5 authentication-negotiation parsing (that is to
+ * say, our parsing of server responses).
+ */
+static void
+test_socks_client_v5_auth(void *arg)
+{
+ (void)arg;
+ buf_t *buf = buf_new();
+ char *reason = NULL;
+
+ /* Legit socks5 responses, got a method we like. */
+ ADD_DATA(buf, "\x05\x00");
+ tt_int_op(1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_AUTH_METHOD_NONE,
+ &reason));
+ tt_ptr_op(reason, OP_EQ, NULL);
+ tt_int_op(buf_datalen(buf), OP_EQ, 0);
+
+ /* Same, but we wanted something else. */
+ ADD_DATA(buf, "\x05\x00");
+ tt_int_op(1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_AUTH_METHOD_RFC1929,
+ &reason));
+ tt_ptr_op(reason, OP_EQ, NULL);
+ tt_int_op(buf_datalen(buf), OP_EQ, 0);
+
+ /* Same, and they offered a password. */
+ ADD_DATA(buf, "\x05\x02");
+ tt_int_op(2, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_AUTH_METHOD_RFC1929,
+ &reason));
+ tt_ptr_op(reason, OP_EQ, NULL);
+ tt_int_op(buf_datalen(buf), OP_EQ, 0);
+
+ /* They rejected our method, or selected something we don't know. */
+ ADD_DATA(buf, "\x05\xff");
+ tt_int_op(-1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_AUTH_METHOD_NONE,
+ &reason));
+ tt_str_op(reason, OP_EQ, "server doesn't support any of our available "
+ "authentication methods");
+ buf_clear(buf);
+ tor_free(reason);
+ ADD_DATA(buf, "\x05\xff");
+ tt_int_op(-1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_AUTH_METHOD_RFC1929,
+ &reason));
+ tt_str_op(reason, OP_EQ, "server doesn't support any of our available "
+ "authentication methods");
+ tor_free(reason);
+ buf_clear(buf);
+
+ /* Now check for authentication responses: check success and failure. */
+ ADD_DATA(buf, "\x01\x00");
+ tt_int_op(1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_AUTH_RFC1929_OK,
+ &reason));
+ tt_ptr_op(reason, OP_EQ, NULL);
+ tt_int_op(buf_datalen(buf), OP_EQ, 0);
+
+ ADD_DATA(buf, "\x01\xf0");
+ tt_int_op(-1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_AUTH_RFC1929_OK,
+ &reason));
+ tt_ptr_op(reason, OP_NE, NULL);
+ tt_str_op(reason, OP_EQ, "authentication failed");
+
+ done:
+ buf_free(buf);
+ tor_free(reason);
+}
+
+/* Check our client-side socks5 connect parsing (that is to say, our parsing
+ * of server responses).
+ */
+static void
+test_socks_client_v5_connect(void *arg)
+{
+ (void)arg;
+ buf_t *buf = buf_new();
+ char *reason = NULL;
+
+ /* Legit socks5 responses, success, ipv4. */
+ ADD_DATA(buf, "\x05\x00\x00\x01\x01\x02\x03\x04\x00\x05");
+ tt_int_op(1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_CONNECT_OK,
+ &reason));
+ tt_ptr_op(reason, OP_EQ, NULL);
+ tt_int_op(buf_datalen(buf), OP_EQ, 0);
+
+ /* Legit socks5 responses, success, ipv6. */
+ ADD_DATA(buf, "\x05\x00\x00\x04"
+ "abcdefghijklmnop"
+ "\x00\x05");
+ tt_int_op(1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_CONNECT_OK,
+ &reason));
+ tt_ptr_op(reason, OP_EQ, NULL);
+ tt_int_op(buf_datalen(buf), OP_EQ, 0);
+
+ /* Legit socks5 responses, success, hostname. */
+ ADD_DATA(buf, "\x05\x00\x00\x03\x12"
+ "gopher.example.com"
+ "\x00\x05");
+ tt_int_op(1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_CONNECT_OK,
+ &reason));
+ tt_ptr_op(reason, OP_EQ, NULL);
+ tt_int_op(buf_datalen(buf), OP_EQ, 0);
+
+ /* Legit socks5 responses, failure, hostname. */
+ ADD_DATA(buf, "\x05\x03\x00\x03\x12"
+ "gopher.example.com"
+ "\x00\x05");
+ tt_int_op(-1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_CONNECT_OK,
+ &reason));
+ tt_ptr_op(reason, OP_NE, NULL);
+ tt_str_op(reason, OP_EQ, "Network unreachable");
+ tor_free(reason);
+ buf_clear(buf);
+
+ /* Bogus socks5 responses: what is address type 0x17? */
+ ADD_DATA(buf, "\x05\x03\x00\x17\x12 blah blah");
+ tt_int_op(-1, OP_EQ,
+ fetch_from_buf_socks_client(buf,
+ PROXY_SOCKS5_WANT_CONNECT_OK,
+ &reason));
+ tt_ptr_op(reason, OP_NE, NULL);
+ tt_str_op(reason, OP_EQ, "invalid response to connect request");
+ buf_clear(buf);
+
+ done:
+ buf_free(buf);
+ tor_free(reason);
+}
+
+static void
+test_socks_client_truncated(void *arg)
+{
+ (void)arg;
+ buf_t *buf = buf_new();
+ char *reason = NULL;
+
+#define S(str) str, (sizeof(str)-1)
+ const struct {
+ int state;
+ const char *body;
+ size_t len;
+ } replies[] = {
+ { PROXY_SOCKS4_WANT_CONNECT_OK, S("\x04\x5a\x20\x25\x01\x02\x03\x04") },
+ { PROXY_SOCKS4_WANT_CONNECT_OK, S("\x04\x5b\x20\x25\x01\x02\x03\x04") },
+ { PROXY_SOCKS5_WANT_AUTH_METHOD_NONE, S("\x05\x00") },
+ { PROXY_SOCKS5_WANT_AUTH_METHOD_RFC1929, S("\x05\x00") },
+ { PROXY_SOCKS5_WANT_AUTH_RFC1929_OK, S("\x01\x00") },
+ { PROXY_SOCKS5_WANT_CONNECT_OK,
+ S("\x05\x00\x00\x01\x01\x02\x03\x04\x00\x05") },
+ { PROXY_SOCKS5_WANT_CONNECT_OK,
+ S("\x05\x00\x00\x04" "abcdefghijklmnop" "\x00\x05") },
+ { PROXY_SOCKS5_WANT_CONNECT_OK,
+ S("\x05\x00\x00\x03\x12" "gopher.example.com" "\x00\x05") },
+ { PROXY_SOCKS5_WANT_CONNECT_OK,
+ S("\x05\x03\x00\x03\x12" "gopher.example.com""\x00\x05") },
+ { PROXY_SOCKS5_WANT_CONNECT_OK,
+ S("\x05\x03\x00\x17") },
+ };
+ unsigned i, j;
+ for (i = 0; i < ARRAY_LENGTH(replies); ++i) {
+ for (j = 0; j < replies[i].len; ++j) {
+ TT_BLATHER(("Checking command %u, length %u", i, j));
+ buf_add(buf, replies[i].body, j);
+ /* This should return 0 meaning "not done yet" */
+ tt_int_op(0, OP_EQ,
+ fetch_from_buf_socks_client(buf, replies[i].state, &reason));
+ tt_uint_op(j, OP_EQ, buf_datalen(buf)); /* Nothing was drained */
+ buf_clear(buf);
+ tt_ptr_op(reason, OP_EQ, NULL);
+ }
+ }
+
+ done:
+ tor_free(reason);
+ buf_free(buf);
+}
+
#define SOCKSENT(name) \
{ #name, test_socks_##name, TT_FORK, &socks_setup, NULL }
struct testcase_t socks_tests[] = {
SOCKSENT(4_unsupported_commands),
SOCKSENT(4_supported_commands),
+ SOCKSENT(4_bad_arguments),
SOCKSENT(5_unsupported_commands),
SOCKSENT(5_supported_commands),
SOCKSENT(5_no_authenticate),
+ SOCKSENT(5_auth_unsupported_type),
+ SOCKSENT(5_auth_unsupported_version),
SOCKSENT(5_auth_before_negotiation),
SOCKSENT(5_authenticate),
SOCKSENT(5_authenticate_with_data),
SOCKSENT(5_malformed_commands),
+ SOCKSENT(5_bad_arguments),
+
+ SOCKSENT(truncated),
+
+ SOCKSENT(wrong_protocol),
+
+ { "client/v4", test_socks_client_v4, TT_FORK, NULL, NULL },
+ { "client/v5_auth", test_socks_client_v5_auth, TT_FORK, NULL, NULL },
+ { "client/v5_connect", test_socks_client_v5_connect, TT_FORK, NULL, NULL },
+ { "client/truncated", test_socks_client_truncated, TT_FORK, NULL, NULL },
END_OF_TESTCASES
};
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