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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 00:53:35 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 00:53:35 +0000 |
commit | 69c6a41ffb878ef98c9378ed4b1634a404cfaa7f (patch) | |
tree | b2a4f704565d62fbb129ab9dc3b35977c50e6e7f /tests/libknot/test_dname.c | |
parent | Initial commit. (diff) | |
download | knot-upstream.tar.xz knot-upstream.zip |
Adding upstream version 2.7.6.upstream/2.7.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tests/libknot/test_dname.c | 584 |
1 files changed, 584 insertions, 0 deletions
diff --git a/tests/libknot/test_dname.c b/tests/libknot/test_dname.c new file mode 100644 index 0000000..1201d46 --- /dev/null +++ b/tests/libknot/test_dname.c @@ -0,0 +1,584 @@ +/* Copyright (C) 2018 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stdlib.h> +#include <string.h> +#include <tap/basic.h> + +#include "libknot/dname.h" + +/* Test dname_parse_from_wire */ +static int test_fw(size_t l, const char *w) { + const uint8_t *np = (const uint8_t *)w + l; + return knot_dname_wire_check((const uint8_t *)w, np, NULL) > 0; +} + +/* Test dname to/from string operations */ +static void test_str(const char *in_str, const char *in_bin, size_t bin_len) { + uint8_t d1[KNOT_DNAME_MAXLEN] = ""; + char s1[4 * KNOT_DNAME_MAXLEN] = ""; + knot_dname_t *d2 = NULL, *aux_d = NULL; + char *s2 = NULL, *aux_s = NULL; + int ret = 0; + + /* dname_from_str */ + aux_d = knot_dname_from_str(d1, in_str, sizeof(d1)); + ok(aux_d != NULL, "dname_from_str: %s", in_str); + if (aux_d == NULL) { + skip_block(10, "dname_from_str: %s", in_str); + return; + } + + /* dname_wire_check */ + ret = knot_dname_wire_check(d1, d1 + sizeof(d1), NULL); + ok(ret == bin_len, "dname_wire_check: %s", in_str); + + /* dname compare */ + ok(memcmp(d1, in_bin, bin_len) == 0, "dname compare: %s", in_str); + + /* dname_to_str */ + aux_s = knot_dname_to_str(s1, d1, sizeof(s1)); + ok(aux_s != NULL, "dname_to_str: %s", in_str); + if (aux_s == NULL) { + skip_block(7, "dname_to_str: %s", in_str); + return; + } + + /* dname_from_str_alloc */ + d2 = knot_dname_from_str_alloc(s1); + ok(d2 != NULL, "dname_from_str_alloc: %s", s1); + if (d2 == NULL) { + skip_block(6, "dname_from_str_alloc: %s", s1); + return; + } + + /* dname_wire_check */ + ret = knot_dname_wire_check(d2, d2 + bin_len, NULL); + ok(ret == bin_len, "dname_wire_check: %s", s1); + + /* dname compare */ + ok(d2 && memcmp(d2, in_bin, bin_len) == 0, "dname compare: %s", s1); + + /* dname_to_str_alloc */ + s2 = knot_dname_to_str_alloc(d2); + knot_dname_free(d2, NULL); + ok(s2 != NULL, "dname_to_str_alloc: %s", s1); + if (s2 == NULL) { + skip_block(3, "dname_to_str_alloc: %s", s1); + return; + } + + /* As the string representation is ambiguous, the following steps + * are just for comparison in wire form. + */ + d2 = knot_dname_from_str_alloc(s2); + ok(d2 != NULL, "dname_from_str_alloc: %s", s2); + if (aux_d == NULL) { + skip_block(2, "dname_from_str_alloc: %s", s2); + free(s2); + return; + } + + /* dname_wire_check */ + ret = knot_dname_wire_check(d2, d2 + bin_len, NULL); + ok(ret == bin_len, "dname_wire_check: %s", s2); + + /* dname compare */ + ok(d2 && memcmp(d2, in_bin, bin_len) == 0, "dname compare: %s", s2); + + knot_dname_free(d2, NULL); + free(s2); +} + +static void test_dname_lf(void) +{ + knot_dname_storage_t storage; + + /* Maximal DNAME length */ + const knot_dname_t *in = (uint8_t *) + "\x3f""iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii" + "\x3f""hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh" + "\x3f""ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg" + "\x1f""fffffffffffffffffffffffffffffff" + "\x0f""eeeeeeeeeeeeeee" + "\x07""ddddddd" + "\x03""ccc" + "\x01""b" + "\x00"; + const uint8_t *ref = (uint8_t *) + "\xFE" + "b""\x00" + "ccc""\00" + "ddddddd""\x00" + "eeeeeeeeeeeeeee""\x00" + "fffffffffffffffffffffffffffffff""\x00" + "ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg""\x00" + "hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh""\x00" + "iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii""\x00"; + uint8_t *out = knot_dname_lf(in, storage); + ok(out != NULL && memcmp(ref, out, KNOT_DNAME_MAXLEN) == 0, + "knot_dname_lf: max-length DNAME converted"); + + /* Zero label DNAME*/ + in = (uint8_t *) "\x00"; + out = knot_dname_lf(in, storage); + ok(out != NULL && out[0] == '\x00', "knot_dname_lf: zero-label DNAME converted"); +} + +static void test_dname_storage(void) +{ + const knot_dname_t *dname = (uint8_t *)"\x04""test"; + size_t dname_len = knot_dname_size(dname); + + knot_dname_storage_t storage; + size_t store_len = knot_dname_store(storage, dname); + size_t storage_len = knot_dname_size(storage); + + ok(store_len == dname_len && storage_len == dname_len && + memcmp(storage, dname, dname_len) == 0, + "knot_dname_storage: valid name"); +} + +int main(int argc, char *argv[]) +{ + plan_lazy(); + + knot_dname_t *d = NULL, *d2 = NULL; + const char *w = NULL, *t = NULL; + char *s = NULL; + + /* DNAME WIRE CHECKS */ + + /* NULL wire */ + ok(!test_fw(0, NULL), "parsing NULL dname"); + + /* empty label */ + ok(test_fw(1, ""), "parsing empty dname"); + + /* incomplete dname */ + ok(!test_fw(5, "\x08" "dddd"), "parsing incomplete wire"); + + /* non-fqdn */ + ok(!test_fw(3, "\x02" "ab"), "parsing non-fqdn name"); + + /* label length == 63 */ + w = "\x3f" "123456789012345678901234567890123456789012345678901234567890123"; + ok(test_fw(1 + 63 + 1, w), "parsing label length == 63"); + + /* label length > 63 */ + w = "\x40" "1234567890123456789012345678901234567890123456789012345678901234"; + ok(!test_fw(1 + 64 + 1, w), "parsing label length > 63"); + + /* label count == 127 (also maximal dname length) */ + w = "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64"; + ok(test_fw(127 * 2 + 1, w), "parsing label count == 127"); + + /* label count > 127 */ + w = "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64"; + ok(!test_fw(128 * 2 + 1, w), "parsing label count > 127"); + + /* dname length > 255 */ + w = "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x02\x64\x64"; + ok(!test_fw(126 * 2 + 3 + 1, w), "parsing dname len > 255"); + + /* DNAME STRING CHECKS */ + + /* root dname */ + test_str(".", "\x00", 1); + + /* 1-char dname */ + test_str("a.", "\x01""a", 2 + 1); + + /* 1-char dname - non-fqdn */ + test_str("a", "\x01""a", 2 + 1); + + /* wildcard and asterisks */ + test_str("*.*a.a*a.**.", + "\x01" "*" "\x02" "*a" "\x03" "a*a" "\x02" "**", + 2 + 3 + 4 + 3 + 1); + + /* special label */ + test_str("\\000\\0320\\ \\\\\\\"\\.\\@\\*.", + "\x09" "\x00\x20\x30\x20\x5c\x22.@*", + 10 + 1); + + /* unescaped special characters */ + test_str("_a.b-c./d.", + "\x02" "_a" "\x03" "b-c" "\x02" "/d", + 3 + 4 + 3 + 1); + + /* all possible characters */ + test_str("\\000\\001\\002\\003\\004\\005\\006\\007\\008\\009\\010\\011\\012\\013\\014\\015\\016\\017\\018\\019", + "\x14" "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13", + 22); + test_str("\\020\\021\\022\\023\\024\\025\\026\\027\\028\\029\\030\\031\\032\\033\\034\\035\\036\\037\\038\\039", + "\x14" "\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20\x21\x22\x23\x24\x25\x26\x27", + 22); + test_str("\\040\\041\\042\\043\\044\\045\\046\\047\\048\\049\\050\\051\\052\\053\\054\\055\\056\\057\\058\\059", + "\x14" "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b", + 22); + test_str("\\060\\061\\062\\063\\064\\065\\066\\067\\068\\069\\070\\071\\072\\073\\074\\075\\076\\077\\078\\079", + "\x14" "\x3c\x3d\x3e\x3f\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f", + 22); + test_str("\\080\\081\\082\\083\\084\\085\\086\\087\\088\\089\\090\\091\\092\\093\\094\\095\\096\\097\\098\\099", + "\x14" "\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f\x60\x61\x62\x63", + 22); + test_str("\\100\\101\\102\\103\\104\\105\\106\\107\\108\\109\\110\\111\\112\\113\\114\\115\\116\\117\\118\\119", + "\x14" "\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f\x70\x71\x72\x73\x74\x75\x76\x77", + 22); + test_str("\\120\\121\\122\\123\\124\\125\\126\\127\\128\\129\\130\\131\\132\\133\\134\\135\\136\\137\\138\\139", + "\x14" "\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b", + 22); + test_str("\\140\\141\\142\\143\\144\\145\\146\\147\\148\\149\\150\\151\\152\\153\\154\\155\\156\\157\\158\\159", + "\x14" "\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f", + 22); + test_str("\\160\\161\\162\\163\\164\\165\\166\\167\\168\\169\\170\\171\\172\\173\\174\\175\\176\\177\\178\\179", + "\x14" "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3", + 22); + test_str("\\180\\181\\182\\183\\184\\185\\186\\187\\188\\189\\190\\191\\192\\193\\194\\195\\196\\197\\198\\199", + "\x14" "\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7", + 22); + test_str("\\200\\201\\202\\203\\204\\205\\206\\207\\208\\209\\210\\211\\212\\213\\214\\215\\216\\217\\218\\219", + "\x14" "\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb", + 22); + test_str("\\220\\221\\222\\223\\224\\225\\226\\227\\228\\229\\230\\231\\232\\233\\234\\235\\236\\237\\238\\239", + "\x14" "\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef", + 22); + test_str("\\240\\241\\242\\243\\244\\245\\246\\247\\248\\249\\250\\251\\252\\253\\254\\255", + "\x10" "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff", + 18); + + /* maximal dname label length */ + test_str("12345678901234567890123456789012345678901234567890123456789012\\063", + "\x3f" "12345678901234567890123456789012345678901234567890123456789012?", + 65); + + /* maximal dname length */ + test_str("1234567890123456789012345678901234567890123456789." + "1234567890123456789012345678901234567890123456789." + "1234567890123456789012345678901234567890123456789." + "1234567890123456789012345678901234567890123456789." + "\\#234567890123456789012345678901234567890123456789012\\063", + "\x31" "1234567890123456789012345678901234567890123456789" + "\x31" "1234567890123456789012345678901234567890123456789" + "\x31" "1234567890123456789012345678901234567890123456789" + "\x31" "1234567890123456789012345678901234567890123456789" + "\x35" "#234567890123456789012345678901234567890123456789012?", + 255); + + /* NULL output, positive maxlen */ + w = "\x02" "aa"; + s = knot_dname_to_str(NULL, (const uint8_t *)w, 1); + ok(s != NULL, "dname_to_str: null dname"); + if (s != NULL) { + ok(memcmp(s, "aa.", 4) == 0, "dname_to_str: null dname compare"); + free(s); + } else { + skip("dname_to_str: null dname"); + } + + /* non-NULL output, zero maxlen */ + char s_small[2]; + s = knot_dname_to_str(s_small, (const uint8_t *)w, 0); + ok(s == NULL, "dname_to_str: non-NULL output, zero maxlen"); + + /* small buffer */ + s = knot_dname_to_str(s_small, (const uint8_t *)w, 1); + ok(s == NULL, "dname_to_str: small buffer"); + + /* NULL dname */ + s = knot_dname_to_str_alloc(NULL); + ok(s == NULL, "dname_to_str: null dname"); + + /* empty dname is considered as a root dname */ + w = ""; + s = knot_dname_to_str_alloc((const uint8_t *)w); + ok(s != NULL, "dname_to_str: empty dname"); + if (s != NULL) { + ok(memcmp(s, ".", 1) == 0, "dname_to_str: empty dname is root dname"); + free(s); + } else { + skip("dname_to_str: empty dname"); + } + + /* incomplete dname */ + /* ASAN: global-buffer-overflow + w = "\x08" "dddd"; + s = knot_dname_to_str_alloc((const uint8_t *)w); + ok(s != NULL, "dname_to_str: incomplete dname"); + free(s); + */ + + /* non-fqdn */ + w = "\x02" "ab"; + s = knot_dname_to_str_alloc((const uint8_t *)w); + ok(s != NULL, "dname_to_str: non-fqdn"); + free(s); + + /* label length > 63 */ + w = "\x40" "1234567890123456789012345678901234567890123456789012345678901234"; + s = knot_dname_to_str_alloc((const uint8_t *)w); + ok(s != NULL, "dname_to_str: label length > 63"); + free(s); + + /* label count > 127 */ + w = "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64"; + s = knot_dname_to_str_alloc((const uint8_t *)w); + ok(s != NULL, "dname_to_str: label count > 127"); + free(s); + + /* dname length > 255 */ + w = "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64" + "\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x01\x64\x02\x64\x64"; + s = knot_dname_to_str_alloc((const uint8_t *)w); + ok(s != NULL, "dname_to_str: dname length > 255"); + free(s); + + /* output overflow sanity check */ + uint8_t in[4] = "\x02""\x00\x00""\x00"; + for (uint16_t i = 0; i < UINT16_MAX; i++) { + memcpy(in + 1, &i, sizeof(i)); + for (int j = 3; j < 8; j++) { + char tmp[j]; + char *out_static = knot_dname_to_str(tmp, in, sizeof(tmp)); + char *out_dynamic = knot_dname_to_str_alloc(in); + if (out_dynamic == NULL) { + ok(out_dynamic != NULL, "dname_to_str_alloc: invalid input"); + } else if (strlen(out_dynamic) < sizeof(tmp) - 1 && + out_static == NULL) { + ok(out_static != NULL, "dname_to_str: invalid input"); + } + free(out_dynamic); + } + } + + /* NULL output, positive maxlen */ + s = "aa."; + d = knot_dname_from_str(NULL, s, 1); + ok(s != NULL, "dname_from_str: null name"); + if (s != NULL) { + ok(memcmp(d, "\x02" "aa", 4) == 0, "dname_from_str: null name compare"); + free(d); + } else { + skip("dname_from_str: null name"); + } + + /* non-NULL output, zero maxlen */ + uint8_t d_small[2]; + d = knot_dname_from_str(d_small, s, 0); + ok(d == NULL, "dname_from_str: non-NULL output, zero maxlen"); + + /* small buffer */ + d = knot_dname_from_str(d_small, s, 1); + ok(d == NULL, "dname_from_str: small buffer"); + + /* NULL string */ + d = knot_dname_from_str_alloc(NULL); + ok(d == NULL, "dname_from_str: null string"); + + /* empty string */ + t = ""; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: empty string"); + + /* empty label */ + t = ".."; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: empty label"); + + /* leading dot */ + t = ".a"; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: leading dot"); + + /* incomplete decimal notation I */ + t = "\\1"; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: incomplete decimal I"); + + /* incomplete decimal notation II */ + t = "\\12"; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: incomplete decimal II"); + + /* invalid decimal notation I */ + t = "\\256"; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: invalid decimal I"); + + /* invalid decimal notation II */ + t = "\\2x6"; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: invalid decimal II"); + + /* invalid escape notation */ + t = "\\2"; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: invalid escape"); + + /* label length > 63 I */ + t = "1234567890123456789012345678901234567890123456789012345678901234"; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: label length > 63 I"); + + /* label length > 63 II */ + t = "123456789012345678901234567890123456789012345678901234567890123\\?"; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: label length > 63 II"); + + /* label length > 63 III */ + t = "123456789012345678901234567890123456789012345678901234567890123\\063"; + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: label length > 63 III"); + + /* dname length > 255 */ + t = "1234567890123456789012345678901234567890123456789." + "1234567890123456789012345678901234567890123456789." + "1234567890123456789012345678901234567890123456789." + "1234567890123456789012345678901234567890123456789." + "123456789012345678901234567890123456789012345678901234.", + d = knot_dname_from_str_alloc(t); + ok(d == NULL, "dname_from_str: dname length > 255"); + + /* DNAME SUBDOMAIN CHECKS */ + + /* equal name is subdomain */ + t = "ab.cd.ef"; + d2 = knot_dname_from_str_alloc(t); + t = "ab.cd.ef"; + d = knot_dname_from_str_alloc(t); + ok(knot_dname_in_bailiwick(d, d2) == 0, "dname_subdomain: equal name"); + knot_dname_free(d, NULL); + + /* true subdomain */ + t = "0.ab.cd.ef"; + d = knot_dname_from_str_alloc(t); + ok(knot_dname_in_bailiwick(d, d2) == 1, "dname_subdomain: true subdomain"); + knot_dname_free(d, NULL); + + /* not subdomain */ + t = "cd.ef"; + d = knot_dname_from_str_alloc(t); + ok(knot_dname_in_bailiwick(d, d2) < 0, "dname_subdomain: not subdomain"); + knot_dname_free(d, NULL); + + /* root subdomain */ + t = "."; + d = knot_dname_from_str_alloc(t); + ok(knot_dname_in_bailiwick(d2, d) == 3, "dname_subdomain: root subdomain"); + knot_dname_free(d, NULL); + knot_dname_free(d2, NULL); + + /* DNAME EQUALITY CHECKS */ + + t = "ab.cd.ef"; + d = knot_dname_from_str_alloc(t); + ok(knot_dname_is_equal(d, d), "dname_is_equal: equal names"); + + t = "ab.cd.fe"; + d2 = knot_dname_from_str_alloc(t); + ok(!knot_dname_is_equal(d, d2), "dname_is_equal: same label count"); + knot_dname_free(d2, NULL); + + t = "ab.cd"; + d2 = knot_dname_from_str_alloc(t); + ok(!knot_dname_is_equal(d, d2), "dname_is_equal: len(d1) < len(d2)"); + knot_dname_free(d2, NULL); + + t = "ab.cd.ef.gh"; + d2 = knot_dname_from_str_alloc(t); + ok(!knot_dname_is_equal(d, d2), "dname_is_equal: len(d1) > len(d2)"); + knot_dname_free(d2, NULL); + + t = "ab.cd.efe"; + d2 = knot_dname_from_str_alloc(t); + ok(!knot_dname_is_equal(d, d2), "dname_is_equal: last label longer"); + knot_dname_free(d2, NULL); + + t = "ab.cd.e"; + d2 = knot_dname_from_str_alloc(t); + ok(!knot_dname_is_equal(d, d2), "dname_is_equal: last label shorter"); + knot_dname_free(d2, NULL); + + knot_dname_free(d, NULL); + + /* OTHER CHECKS */ + + test_dname_lf(); + + test_dname_storage(); + + return 0; +} |