tor-commits September 2015

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[tor/maint-0.2.7] Add checks and unit tests for get_interface_address* failure
by nickm＠torproject.org 29 Sep '15

29 Sep '15

commit 7fa102b48783b51673095e1ddcb2f88050a2ba32 Author: teor (Tim Wilson-Brown) <teor2345(a)gmail.com> Date: Tue Sep 29 07:04:49 2015 +0200 Add checks and unit tests for get_interface_address* failure Ensure that either a valid address is returned in address pointers, or that the address data is zeroed on error. Ensure that free_interface_address6_list handles NULL lists. Add unit tests for get_interface_address* failure cases. Fixes bug #17173. Patch by fk/teor, not in any released version of tor. --- changes/bug17173-socket-hack-rv | 10 +++++ src/common/address.c | 24 ++++++---- src/common/address.h | 8 ++-- src/test/test_address.c | 95 +++++++++++++++++++++++++++++++++++++++ 4 files changed, 125 insertions(+), 12 deletions(-) diff --git a/changes/bug17173-socket-hack-rv b/changes/bug17173-socket-hack-rv new file mode 100644 index 0000000..c9f30d3 --- /dev/null +++ b/changes/bug17173-socket-hack-rv @@ -0,0 +1,10 @@ + o Minor bug fixes (addresses, testing): + - Handle errors in get_interface_address6_via_udp_socket_hack by + returning an empty list (no addresses found). This bug was triggered + in ElectroBSD/FreeBSD jails. + - Ensure that either a valid address is returned in address pointers, + or that the address data is zeroed on error. + - Ensure that free_interface_address6_list handles NULL lists. + - Add unit tests for get_interface_address* failure cases. + Fixes bug #17173. + Patch by fk/teor, not in any released version of tor. diff --git a/src/common/address.c b/src/common/address.c index fc85f8e..cfa8fd1 100644 --- a/src/common/address.c +++ b/src/common/address.c @@ -1506,8 +1506,8 @@ get_interface_addresses_ioctl(int severity) * Return a new smartlist of tor_addr_t on success, and NULL on failure. * (An empty smartlist indicates that we successfully learned that we have no * addresses.) Log failure messages at severity. */ -STATIC smartlist_t * -get_interface_addresses_raw(int severity) +MOCK_IMPL(smartlist_t *, +get_interface_addresses_raw,(int severity)) { smartlist_t *result = NULL; #if defined(HAVE_IFADDRS_TO_SMARTLIST) @@ -1547,10 +1547,10 @@ tor_addr_is_multicast(const tor_addr_t *a) * UDP socket trickery. Only look for address of given family. * Set result to *addr. Return 0 on success, -1 on failure. */ -STATIC int -get_interface_address6_via_udp_socket_hack(int severity, - sa_family_t family, - tor_addr_t *addr) +MOCK_IMPL(int, +get_interface_address6_via_udp_socket_hack,(int severity, + sa_family_t family, + tor_addr_t *addr)) { struct sockaddr_storage my_addr, target_addr; int sock=-1, r=-1; @@ -1614,6 +1614,8 @@ get_interface_address6_via_udp_socket_hack(int severity, err: if (sock >= 0) tor_close_socket(sock); + if (r == -1) + memset(addr, 0, sizeof(tor_addr_t)); return r; } @@ -1632,6 +1634,8 @@ get_interface_address6,(int severity, sa_family_t family, tor_addr_t *addr)) int rv = -1; tor_assert(addr); + memset(addr, 0, sizeof(tor_addr_t)); + /* Get a list of public or internal IPs in arbitrary order */ addrs = get_interface_address6_list(severity, family, 1); @@ -1656,8 +1660,10 @@ get_interface_address6,(int severity, sa_family_t family, tor_addr_t *addr)) void free_interface_address6_list(smartlist_t *addrs) { - SMARTLIST_FOREACH(addrs, tor_addr_t *, a, tor_free(a)); - smartlist_free(addrs); + if (addrs != NULL) { + SMARTLIST_FOREACH(addrs, tor_addr_t *, a, tor_free(a)); + smartlist_free(addrs); + } } /** Return a smartlist of the IP addresses of type family from all interfaces @@ -1975,6 +1981,8 @@ get_interface_address,(int severity, uint32_t *addr)) tor_addr_t local_addr; int r; + memset(addr, 0, sizeof(uint32_t)); + r = get_interface_address6(severity, AF_INET, &local_addr); if (r>=0) *addr = tor_addr_to_ipv4h(&local_addr); diff --git a/src/common/address.h b/src/common/address.h index 7d49fb5..d2841e1 100644 --- a/src/common/address.h +++ b/src/common/address.h @@ -310,11 +310,11 @@ get_interface_address_list(int severity, int include_internal) tor_addr_port_t *tor_addr_port_new(const tor_addr_t *addr, uint16_t port); #ifdef ADDRESS_PRIVATE -STATIC smartlist_t *get_interface_addresses_raw(int severity); +MOCK_DECL(smartlist_t *,get_interface_addresses_raw,(int severity)); STATIC int tor_addr_is_multicast(const tor_addr_t *a); -STATIC int get_interface_address6_via_udp_socket_hack(int severity, - sa_family_t family, - tor_addr_t *addr); +MOCK_DECL(int,get_interface_address6_via_udp_socket_hack,(int severity, + sa_family_t family, + tor_addr_t *addr)); #ifdef HAVE_IFADDRS_TO_SMARTLIST STATIC smartlist_t *ifaddrs_to_smartlist(const struct ifaddrs *ifa); diff --git a/src/test/test_address.c b/src/test/test_address.c index 72742df..b442f4a 100644 --- a/src/test/test_address.c +++ b/src/test/test_address.c @@ -779,6 +779,99 @@ test_address_get_if_addrs6_list_no_internal(void *arg) return; } +static int called_get_interface_addresses_raw = 0; + +smartlist_t * +mock_get_interface_addresses_raw_fail(int severity) +{ + (void)severity; + + called_get_interface_addresses_raw++; + return smartlist_new(); +} + +static int called_get_interface_address6_via_udp_socket_hack = 0; + +int +mock_get_interface_address6_via_udp_socket_hack_fail(int severity, + sa_family_t family, + tor_addr_t *addr) +{ + (void)severity; + (void)family; + (void)addr; + + called_get_interface_address6_via_udp_socket_hack++; + return -1; +} + +static void +test_address_get_if_addrs_internal_fail(void *arg) +{ + smartlist_t *results1 = NULL, *results2 = NULL; + int rv = 0; + uint32_t ipv4h_addr = 0; + tor_addr_t ipv6_addr; + + memset(&ipv6_addr, 0, sizeof(tor_addr_t)); + + (void)arg; + + MOCK(get_interface_addresses_raw, + mock_get_interface_addresses_raw_fail); + MOCK(get_interface_address6_via_udp_socket_hack, + mock_get_interface_address6_via_udp_socket_hack_fail); + + results1 = get_interface_address6_list(LOG_ERR, AF_INET6, 1); + tt_assert(results1 != NULL); + tt_int_op(smartlist_len(results1),==,0); + + results2 = get_interface_address_list(LOG_ERR, 1); + tt_assert(results2 != NULL); + tt_int_op(smartlist_len(results2),==,0); + + rv = get_interface_address6(LOG_ERR, AF_INET6, &ipv6_addr); + tt_assert(rv == -1); + + rv = get_interface_address(LOG_ERR, &ipv4h_addr); + tt_assert(rv == -1); + +done: + UNMOCK(get_interface_addresses_raw); + UNMOCK(get_interface_address6_via_udp_socket_hack); + free_interface_address6_list(results1); + free_interface_address6_list(results2); + return; +} + +static void +test_address_get_if_addrs_no_internal_fail(void *arg) +{ + smartlist_t *results1 = NULL, *results2 = NULL; + + (void)arg; + + MOCK(get_interface_addresses_raw, + mock_get_interface_addresses_raw_fail); + MOCK(get_interface_address6_via_udp_socket_hack, + mock_get_interface_address6_via_udp_socket_hack_fail); + + results1 = get_interface_address6_list(LOG_ERR, AF_INET6, 0); + tt_assert(results1 != NULL); + tt_int_op(smartlist_len(results1),==,0); + + results2 = get_interface_address_list(LOG_ERR, 0); + tt_assert(results2 != NULL); + tt_int_op(smartlist_len(results2),==,0); + +done: + UNMOCK(get_interface_addresses_raw); + UNMOCK(get_interface_address6_via_udp_socket_hack); + free_interface_address6_list(results1); + free_interface_address6_list(results2); + return; +} + static void test_address_get_if_addrs(void *arg) { @@ -838,6 +931,8 @@ struct testcase_t address_tests[] = { ADDRESS_TEST(get_if_addrs_list_no_internal, 0), ADDRESS_TEST(get_if_addrs6_list_internal, 0), ADDRESS_TEST(get_if_addrs6_list_no_internal, 0), + ADDRESS_TEST(get_if_addrs_internal_fail, 0), + ADDRESS_TEST(get_if_addrs_no_internal_fail, 0), ADDRESS_TEST(get_if_addrs, 0), ADDRESS_TEST(get_if_addrs6, 0), #ifdef HAVE_IFADDRS_TO_SMARTLIST

1 0

[tor/master] FreeBSD needs -lexecinfo to get backtrace()
by nickm＠torproject.org 29 Sep '15

29 Sep '15

commit 00e15ba4772bb11c00e88f9e263966c856f1f275 Author: Marcin Cieślak <saper(a)saper.info> Date: Fri Sep 25 00:59:59 2015 +0000 FreeBSD needs -lexecinfo to get backtrace() --- configure.ac | 1 + 1 file changed, 1 insertion(+) diff --git a/configure.ac b/configure.ac index b190522..24de46e 100644 --- a/configure.ac +++ b/configure.ac @@ -360,6 +360,7 @@ AC_SEARCH_LIBS(socket, [socket network]) AC_SEARCH_LIBS(gethostbyname, [nsl]) AC_SEARCH_LIBS(dlopen, [dl]) AC_SEARCH_LIBS(inet_aton, [resolv]) +AC_SEARCH_LIBS(backtrace, [execinfo]) saved_LIBS="$LIBS" AC_SEARCH_LIBS([clock_gettime], [rt]) if test "$LIBS" != "$saved_LIBS"; then

1 0

[tor/master] Add changes file for bug17151
by nickm＠torproject.org 29 Sep '15

29 Sep '15

commit 546d70dc7c5c2fd6687d3aaa0ff3c52c6c7dc4de Author: Nick Mathewson <nickm(a)torproject.org> Date: Tue Sep 29 10:08:02 2015 +0200 Add changes file for bug17151 --- changes/bug17151 | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/changes/bug17151 b/changes/bug17151 new file mode 100644 index 0000000..0993b90 --- /dev/null +++ b/changes/bug17151 @@ -0,0 +1,7 @@ + o Minor bugfixes (portability): + - Use libexecinfo on FreeBSD, to enable backtrace support. Fixes part of + bug 17151; bugfix on 0.2.5.2-alpha. Patch from Marcin Cieślak. + + o Minor bugfixes (testing): + - Skip backtrace tests when backtrace support is not compiled in. Fixes + part of bug 17151; bugfix on 0.2.7.1-alpha. Patch from Marcin Cieślak.

1 0

[tor/master] No spaces around = in variable assignment
by nickm＠torproject.org 29 Sep '15

29 Sep '15

commit f75325c132847883a7ddc5f0f6e55847edc68507 Author: Marcin Cieślak <saper(a)saper.info> Date: Fri Sep 25 14:16:40 2015 +0000 No spaces around = in variable assignment BSD make takes spaces around = literally and produces a "TESTING_TOR_BINARY " variable with a trailing space, which leads to test_keygen.sh failure. Fixes 17154 --- src/or/include.am | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/or/include.am b/src/or/include.am index 7b12b56..d0e955f 100644 --- a/src/or/include.am +++ b/src/or/include.am @@ -123,9 +123,9 @@ src_or_tor_cov_LDADD = src/or/libtor-testing.a src/common/libor-testing.a \ src/common/libor-event-testing.a src/trunnel/libor-trunnel-testing.a \ @TOR_ZLIB_LIBS@ @TOR_LIB_MATH@ @TOR_LIBEVENT_LIBS@ @TOR_OPENSSL_LIBS@ \ @TOR_LIB_WS32@ @TOR_LIB_GDI@ @CURVE25519_LIBS@ @TOR_SYSTEMD_LIBS@ -export TESTING_TOR_BINARY = $(top_builddir)/src/or/tor-cov +export TESTING_TOR_BINARY=$(top_builddir)/src/or/tor-cov else -export TESTING_TOR_BINARY = $(top_builddir)/src/or/tor +export TESTING_TOR_BINARY=$(top_builddir)/src/or/tor endif ORHEADERS = \

1 0

[tor/master] Changes file for bug17154
by nickm＠torproject.org 29 Sep '15

29 Sep '15

commit 216a9f7aecb19d717bed20557c2fd7d39333dba0 Author: Nick Mathewson <nickm(a)torproject.org> Date: Tue Sep 29 10:10:52 2015 +0200 Changes file for bug17154 --- changes/bug17154 | 3 +++ 1 file changed, 3 insertions(+) diff --git a/changes/bug17154 b/changes/bug17154 new file mode 100644 index 0000000..6ad7b74 --- /dev/null +++ b/changes/bug17154 @@ -0,0 +1,3 @@ + o Minor bugfixes (testing): + - Fix breakage when running 'make check' with BSD make. Fixes bug + 17154; bugfix on 0.2.7.3-rc. Patch by Marcin Cieślak.

1 0

[tor/master] Merge remote-tracking branch 'origin/maint-0.2.7'
by nickm＠torproject.org 29 Sep '15

29 Sep '15

commit 3d8a045bd6b9395c108cfbdfd971690163ca0e21 Merge: 551dba3 216a9f7 Author: Nick Mathewson <nickm(a)torproject.org> Date: Tue Sep 29 10:12:05 2015 +0200 Merge remote-tracking branch 'origin/maint-0.2.7' changes/bug17151 | 7 +++++++ changes/bug17154 | 3 +++ configure.ac | 1 + src/or/include.am | 4 ++-- src/test/test_bt.sh | 1 + src/test/test_bt_cl.c | 11 ++++++++++- 6 files changed, 24 insertions(+), 3 deletions(-)

1 0

[tor/master] Skip tests if backtrace support not compiled-in
by nickm＠torproject.org 29 Sep '15

29 Sep '15

commit 5c95762ec6c8e43fe7bc5582fd43585076214ba4 Author: Marcin Cieślak <saper(a)saper.info> Date: Thu Sep 24 22:32:51 2015 +0000 Skip tests if backtrace support not compiled-in FreeBSD needs -lexecinfo to fully support backtrace reporting. --- src/test/test_bt.sh | 1 + src/test/test_bt_cl.c | 11 ++++++++++- 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/src/test/test_bt.sh b/src/test/test_bt.sh index 56e6cc4..f55f451 100755 --- a/src/test/test_bt.sh +++ b/src/test/test_bt.sh @@ -3,6 +3,7 @@ exitcode=0 +"${builddir:-.}/src/test/test-bt-cl" backtraces || exit 77 "${builddir:-.}/src/test/test-bt-cl" assert | "${PYTHON:-python}" "${abs_top_srcdir:-.}/src/test/bt_test.py" || exitcode=1 "${builddir:-.}/src/test/test-bt-cl" crash | "${PYTHON:-python}" "${abs_top_srcdir:-.}/src/test/bt_test.py" || exitcode=1 diff --git a/src/test/test_bt_cl.c b/src/test/test_bt_cl.c index 01c621e..dabaee6 100644 --- a/src/test/test_bt_cl.c +++ b/src/test/test_bt_cl.c @@ -84,15 +84,24 @@ main(int argc, char **argv) if (argc < 2) { puts("I take an argument. It should be \"assert\" or \"crash\" or " - "\"none\""); + "\"backtraces\" or \"none\""); return 1; } + +#if !(defined(HAVE_EXECINFO_H) && defined(HAVE_BACKTRACE) && \ + defined(HAVE_BACKTRACE_SYMBOLS_FD) && defined(HAVE_SIGACTION)) + puts("Backtrace reporting is not supported on this platform"); + return 77; +#endif + if (!strcmp(argv[1], "assert")) { crashtype = 1; } else if (!strcmp(argv[1], "crash")) { crashtype = 0; } else if (!strcmp(argv[1], "none")) { crashtype = -1; + } else if (!strcmp(argv[1], "backtraces")) { + return 0; } else { puts("Argument should be \"assert\" or \"crash\" or \"none\""); return 1;

1 0

[tor/maint-0.2.7] No spaces around = in variable assignment
by nickm＠torproject.org 29 Sep '15

29 Sep '15

1 0

[tor/maint-0.2.7] Changes file for bug17154
by nickm＠torproject.org 29 Sep '15

29 Sep '15

1 0

[tor/maint-0.2.7] Skip tests if backtrace support not compiled-in
by nickm＠torproject.org 29 Sep '15

29 Sep '15

1 0

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tor-commits September 2015