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Commit 033057ba authored by Mark Andrews's avatar Mark Andrews
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Create a key directory in /tmp 

Access to the source tree is not available with oss_fuzz.  Have
fuzz/dns_message_checksig build and populate a key directory for
the fuzzer to use.  This contains a key pair and a zone file which
has the public key from the key pair.  Clean it up on shutdown.
parent 39ae4a14
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fuzz/dns_message_checksig.c
View file @ 033057ba
......@@ -89,9 +89,44 @@ static dns_view_t *view = NULL;
static dns_tsigkey_t *tsigkey = NULL;
static dns_tsig_keyring_t *ring = NULL;
static dns_tsig_keyring_t *emptyring = NULL;
static char *wd = NULL;
static char template[] = "/tmp/dns-message-checksig-XXXXXX";
static char f1[] = "Ksig0key.+008+55921.key";
static char c1[] = "sig0key. IN KEY 512 3 8 "
"AwEAAa22lgHi1vAbQvu5ETdTrm2H8rwga9tvyMa6LFiSDyevLvSv0Uo5 "
"uvfrXnxaLdtBMts6e1Ly2piSH9JRbOGMNibOK4EXWhWAn8MII4SWgQAs "
"bFwtiz4HyPn2wScrUQdo8DocKiQJBanesr7vDO8fdA6Rg1e0yAtSeNti "
"e8avx46/HJa6CFs3CoE0sf6oOFSxM954AgCBTXOGNBt1Nt3Bhfqt2qyA "
"TLFii5K1jLDTZDVkoiyDXL1M7wcTwKf9METgj1eQmH3GGlRM/OJ/j8xk "
"ZiFGbL3cipWdiH48031jiV2hlc92mKn8Ya0d9AN6c44piza/JSFydZXw "
"sY32nxzjDbs=\n";
static char f2[] = "Ksig0key.+008+55921.private";
static char c2[] = "Private-key-format: v1.3\n\
Algorithm: 8 (RSASHA256)\n\
Modulus: rbaWAeLW8BtC+7kRN1OubYfyvCBr22/IxrosWJIPJ68u9K/RSjm69+tefFot20Ey2zp7UvLamJIf0lFs4Yw2Js4rgRdaFYCfwwgjhJaBACxsXC2LPgfI+fbBJytRB2jwOhwqJAkFqd6yvu8M7x90DpGDV7TIC1J422J7xq/Hjr8clroIWzcKgTSx/qg4VLEz3ngCAIFNc4Y0G3U23cGF+q3arIBMsWKLkrWMsNNkNWSiLINcvUzvBxPAp/0wROCPV5CYfcYaVEz84n+PzGRmIUZsvdyKlZ2IfjzTfWOJXaGVz3aYqfxhrR30A3pzjimLNr8lIXJ1lfCxjfafHOMNuw==\n\
PublicExponent: AQAB\n\
PrivateExponent: GDfclFkR5ToFGH9rMTRMnP73Q5dzjLgkx4vyHcuzKtxcvAans4+hNj+NazckAy2E+mpzV2j95TJ4wZjSM2RvB5xLwBIc4Dg6oyAHL6Ikoae6gw64cHFOaYb808n8CyqWqfX+QWAz9sRSVZXnTuPViX3A+svR7ejVak9Bzr1NTDm0DFlrhaKVCYA++dKVZerfuNiXT/jQvrc4wMCa7WWsfLsFO8aTNkEhqUnmS9c5VYgr7MkCV4ENDBcISpQc9wElI0hl12QPaSj8iSdk9liYp+HTiOxOyp6BGGuecKAoQijMwrZy4qExdOxvowptll8+nZLtwGRn/un/xvIZY5OLAQ==\n\
Prime1: ww3C6jwnrLQik/zxSgC0KuqgHq68cCjiRjwK2/euzs7NkMevFpXvV0cWO8x1/wKC1mszVLsUaKTvH6fzRsXfz5MPihzNzUYFwvobKVLserSxEwHNk+FKUU+q07Kf8WWnCqX5nX9QzVG1q4J8Q44N49I5S480jHLGYbyLZrEYMQE=\n\
Prime2: 4/3Ozq/8vRgcO4bieFs4CbZR7C98HiTi65SiLBIKY09mDfCleZI0uurAYBluZJgHS5AC5cdyHFuJr3uKxvD+Mgdlru40U6cSCEdK7HAhyUGZUndWl28wyMEB6Kke1/owxVn0S4RKLPOgFI2668H6JObaqXf0wyY89RdVQP6VQrs=\n\
Exponent1: Tbr9MyVX1j5PDVSev5P6OKQZvUB7PeM9ESo6VaCl3CqTxx+cic6ke86LcLcxSrewdkxwP1LydiVMWfwvOcP/RhRf+/Uwmp5OC35qNpSiQuAhNObiCw2b9T1fYU/s52FQKTEtgXNMOxZV5IxyguVoaaLMTG08TsAqiKZ/kyP99QE=\n\
Exponent2: Q4qSNKrwLbixzHS2LL+hR0dK17RtiaSV0QKUVIf3qdoAusp6yxwkIOegnBeMm6JqLtl38kh2pq37iRAJWcxVEc8dMYiB2fJZpjgwmwDREYUsfcC611vqUN7UyO8pIwSMZDq045ZKPyzhVJV0NZmemEYHq0LNMO7oCheiewGwiDc=\n\
Coefficient: T2u/J4NgyO+OqoLpXBIpTBzqrvDk8tb0feYgsp5d16hHvbXxNkMUR8cI07RdbI9HnEldtmhAnbQ6SvFiy2YYjpw/1Fz2WwdxRqLaDV7UlhrT+CqltvU9d/N/xThBNKDa23Wf5Vat+HRiLHSgzsY1PseVCWN+g4azuK2D8+DLeHE=\n\
Created: 20220311073606\n\
Publish: 20220311073606\n\
Activate: 20220311073606\n";
static char f3[] = "sig0key.db";
static char c3[] = "sig0key. 0 IN SOA . . 0 0 0 0 0\n\
sig0key. 0 IN NS .\n\
sig0key. 0 IN KEY 512 3 8 AwEAAa22lgHi1vAbQvu5ETdTrm2H8rwga9tvyMa6LFiSDyevLvSv0Uo5 uvfrXnxaLdtBMts6e1Ly2piSH9JRbOGMNibOK4EXWhWAn8MII4SWgQAs bFwtiz4HyPn2wScrUQdo8DocKiQJBanesr7vDO8fdA6Rg1e0yAtSeNti e8avx46/HJa6CFs3CoE0sf6oOFSxM954AgCBTXOGNBt1Nt3Bhfqt2qyA TLFii5K1jLDTZDVkoiyDXL1M7wcTwKf9METgj1eQmH3GGlRM/OJ/j8xk ZiFGbL3cipWdiH48031jiV2hlc92mKn8Ya0d9AN6c44piza/JSFydZXw sY32nxzjDbs=\n";
static void
cleanup(void) {
char pathbuf[PATH_MAX];
char *pwd = getcwd(pathbuf, sizeof(pathbuf));
if (view != NULL) {
dns_view_detach(&view);
}
......@@ -107,6 +142,33 @@ cleanup(void) {
if (mctx != NULL) {
isc_mem_detach(&mctx);
}
if (wd != NULL && chdir(wd) == 0) {
if (remove(f1) != 0) {
fprintf(stderr, "remove(%s) failed\n", f1);
}
if (remove(f2) != 0) {
fprintf(stderr, "remove(%s) failed\n", f2);
}
if (remove(f3) != 0) {
fprintf(stderr, "remove(%s) failed\n", f3);
}
/*
* Restore working directory if possible before cleaning
* up the key directory. This will help with any other
* cleanup routines and if this code is ever run under
* Windows as the directory should not be in use when
* rmdir() is called.
*/
if (pwd != NULL && chdir(pwd) != 0) {
fprintf(stderr, "can't restore working directory: %s\n",
pwd);
}
if (rmdir(wd) != 0) {
fprintf(stderr, "rmdir(%s) failed\n", wd);
}
} else {
fprintf(stderr, "cleanup of %s failed\n", wd ? wd : "(null)");
}
}
int
......@@ -120,33 +182,77 @@ LLVMFuzzerInitialize(int *argc __attribute__((unused)),
0xff, 0xff, 0xff, 0xff };
dns_zone_t *zone = NULL;
char pathbuf[PATH_MAX];
FILE *fd;
atexit(cleanup);
wd = mkdtemp(template);
if (wd == NULL) {
fprintf(stderr, "mkdtemp failed\n");
return (1);
}
snprintf(pathbuf, sizeof(pathbuf), "%s/%s", wd, f1);
fd = fopen(pathbuf, "w");
if (fd == NULL) {
fprintf(stderr, "fopen(%s) failed\n", pathbuf);
return (1);
}
fputs(c1, fd);
fclose(fd);
snprintf(pathbuf, sizeof(pathbuf), "%s/%s", wd, f2);
fd = fopen(pathbuf, "w");
if (fd == NULL) {
fprintf(stderr, "fopen(%s) failed\n", pathbuf);
return (1);
}
fputs(c2, fd);
fclose(fd);
snprintf(pathbuf, sizeof(pathbuf), "%s/%s", wd, f3);
fd = fopen(pathbuf, "w");
if (fd == NULL) {
fprintf(stderr, "fopen(%s) failed\n", pathbuf);
return (1);
}
fputs(c3, fd);
fclose(fd);
isc_mem_create(&mctx);
result = dst_lib_init(mctx, NULL);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dst_lib_init failed: %s\n",
isc_result_totext(result));
return (1);
}
result = dns_view_create(mctx, dns_rdataclass_in, "view", &view);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_view_create failed: %s\n",
isc_result_totext(result));
return (1);
}
result = dns_tsigkeyring_create(mctx, &ring);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_tsigkeyring_create failed: %s\n",
isc_result_totext(result));
return (1);
}
result = dns_tsigkeyring_create(mctx, &emptyring);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_tsigkeyring_create failed: %s\n",
isc_result_totext(result));
return (1);
}
result = dns_name_fromstring(name, "tsig-key", 0, NULL);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_name_fromstring failed: %s\n",
isc_result_totext(result));
return (1);
}
......@@ -154,49 +260,61 @@ LLVMFuzzerInitialize(int *argc __attribute__((unused)),
sizeof(secret), false, NULL, 0, 0, mctx,
ring, &tsigkey);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_tsigkey_create failed: %s\n",
isc_result_totext(result));
return (1);
}
result = dns_name_fromstring(name, "sig0key", 0, NULL);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_name_fromstring failed: %s\n",
isc_result_totext(result));
return (1);
}
result = dns_zone_create(&zone, mctx, 0);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_zone_create failed: %s\n",
isc_result_totext(result));
return (1);
}
result = dns_zone_setorigin(zone, name);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_zone_setorigin failed: %s\n",
isc_result_totext(result));
return (1);
}
dns_zone_setclass(zone, view->rdclass);
dns_zone_settype(zone, dns_zone_primary);
snprintf(pathbuf, sizeof(pathbuf), FUZZDIR "/%s",
"dns_message_checksig.data");
result = dns_zone_setkeydirectory(zone, pathbuf);
result = dns_zone_setkeydirectory(zone, wd);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_zone_setkeydirectory failed: %s\n",
isc_result_totext(result));
return (1);
}
snprintf(pathbuf, sizeof(pathbuf), FUZZDIR "/%s",
"dns_message_checksig.data/sig0key.db");
result = dns_zone_setfile(zone, pathbuf, dns_masterformat_text,
&dns_master_style_default);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_zone_setfile failed: %s\n",
isc_result_totext(result));
return (1);
}
result = dns_zone_load(zone, false);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_zone_load failed: %s\n",
isc_result_totext(result));
return (1);
}
result = dns_view_addzone(view, zone);
if (result != ISC_R_SUCCESS) {
fprintf(stderr, "dns_view_addzone failed: %s\n",
isc_result_totext(result));
return (1);
}
......
fuzz/dns_message_checksig.data/Ksig0key.+008+55921.key deleted 100644 → 0
View file @ 39ae4a14
sig0key. IN KEY 512 3 8 AwEAAa22lgHi1vAbQvu5ETdTrm2H8rwga9tvyMa6LFiSDyevLvSv0Uo5 uvfrXnxaLdtBMts6e1Ly2piSH9JRbOGMNibOK4EXWhWAn8MII4SWgQAs bFwtiz4HyPn2wScrUQdo8DocKiQJBanesr7vDO8fdA6Rg1e0yAtSeNti e8avx46/HJa6CFs3CoE0sf6oOFSxM954AgCBTXOGNBt1Nt3Bhfqt2qyA TLFii5K1jLDTZDVkoiyDXL1M7wcTwKf9METgj1eQmH3GGlRM/OJ/j8xk ZiFGbL3cipWdiH48031jiV2hlc92mKn8Ya0d9AN6c44piza/JSFydZXw sY32nxzjDbs=
fuzz/dns_message_checksig.data/Ksig0key.+008+55921.private deleted 100644 → 0
View file @ 39ae4a14
Private-key-format: v1.3
Algorithm: 8 (RSASHA256)
Modulus: rbaWAeLW8BtC+7kRN1OubYfyvCBr22/IxrosWJIPJ68u9K/RSjm69+tefFot20Ey2zp7UvLamJIf0lFs4Yw2Js4rgRdaFYCfwwgjhJaBACxsXC2LPgfI+fbBJytRB2jwOhwqJAkFqd6yvu8M7x90DpGDV7TIC1J422J7xq/Hjr8clroIWzcKgTSx/qg4VLEz3ngCAIFNc4Y0G3U23cGF+q3arIBMsWKLkrWMsNNkNWSiLINcvUzvBxPAp/0wROCPV5CYfcYaVEz84n+PzGRmIUZsvdyKlZ2IfjzTfWOJXaGVz3aYqfxhrR30A3pzjimLNr8lIXJ1lfCxjfafHOMNuw==
PublicExponent: AQAB
PrivateExponent: GDfclFkR5ToFGH9rMTRMnP73Q5dzjLgkx4vyHcuzKtxcvAans4+hNj+NazckAy2E+mpzV2j95TJ4wZjSM2RvB5xLwBIc4Dg6oyAHL6Ikoae6gw64cHFOaYb808n8CyqWqfX+QWAz9sRSVZXnTuPViX3A+svR7ejVak9Bzr1NTDm0DFlrhaKVCYA++dKVZerfuNiXT/jQvrc4wMCa7WWsfLsFO8aTNkEhqUnmS9c5VYgr7MkCV4ENDBcISpQc9wElI0hl12QPaSj8iSdk9liYp+HTiOxOyp6BGGuecKAoQijMwrZy4qExdOxvowptll8+nZLtwGRn/un/xvIZY5OLAQ==
Prime1: ww3C6jwnrLQik/zxSgC0KuqgHq68cCjiRjwK2/euzs7NkMevFpXvV0cWO8x1/wKC1mszVLsUaKTvH6fzRsXfz5MPihzNzUYFwvobKVLserSxEwHNk+FKUU+q07Kf8WWnCqX5nX9QzVG1q4J8Q44N49I5S480jHLGYbyLZrEYMQE=
Prime2: 4/3Ozq/8vRgcO4bieFs4CbZR7C98HiTi65SiLBIKY09mDfCleZI0uurAYBluZJgHS5AC5cdyHFuJr3uKxvD+Mgdlru40U6cSCEdK7HAhyUGZUndWl28wyMEB6Kke1/owxVn0S4RKLPOgFI2668H6JObaqXf0wyY89RdVQP6VQrs=
Exponent1: Tbr9MyVX1j5PDVSev5P6OKQZvUB7PeM9ESo6VaCl3CqTxx+cic6ke86LcLcxSrewdkxwP1LydiVMWfwvOcP/RhRf+/Uwmp5OC35qNpSiQuAhNObiCw2b9T1fYU/s52FQKTEtgXNMOxZV5IxyguVoaaLMTG08TsAqiKZ/kyP99QE=
Exponent2: Q4qSNKrwLbixzHS2LL+hR0dK17RtiaSV0QKUVIf3qdoAusp6yxwkIOegnBeMm6JqLtl38kh2pq37iRAJWcxVEc8dMYiB2fJZpjgwmwDREYUsfcC611vqUN7UyO8pIwSMZDq045ZKPyzhVJV0NZmemEYHq0LNMO7oCheiewGwiDc=
Coefficient: T2u/J4NgyO+OqoLpXBIpTBzqrvDk8tb0feYgsp5d16hHvbXxNkMUR8cI07RdbI9HnEldtmhAnbQ6SvFiy2YYjpw/1Fz2WwdxRqLaDV7UlhrT+CqltvU9d/N/xThBNKDa23Wf5Vat+HRiLHSgzsY1PseVCWN+g4azuK2D8+DLeHE=
Created: 20220311073606
Publish: 20220311073606
Activate: 20220311073606
fuzz/dns_message_checksig.data/sig0key.db deleted 100644 → 0
View file @ 39ae4a14
; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
;
; SPDX-License-Identifier: MPL-2.0
;
; This Source Code Form is subject to the terms of the Mozilla Public
; License, v. 2.0. If a copy of the MPL was not distributed with this
; file, you can obtain one at https://mozilla.org/MPL/2.0/.
;
; See the COPYRIGHT file distributed with this work for additional
; information regarding copyright ownership.
sig0key. 0 IN SOA . . 0 0 0 0 0
sig0key. 0 IN NS .
sig0key. 0 IN KEY 512 3 8 AwEAAa22lgHi1vAbQvu5ETdTrm2H8rwga9tvyMa6LFiSDyevLvSv0Uo5 uvfrXnxaLdtBMts6e1Ly2piSH9JRbOGMNibOK4EXWhWAn8MII4SWgQAs bFwtiz4HyPn2wScrUQdo8DocKiQJBanesr7vDO8fdA6Rg1e0yAtSeNti e8avx46/HJa6CFs3CoE0sf6oOFSxM954AgCBTXOGNBt1Nt3Bhfqt2qyA TLFii5K1jLDTZDVkoiyDXL1M7wcTwKf9METgj1eQmH3GGlRM/OJ/j8xk ZiFGbL3cipWdiH48031jiV2hlc92mKn8Ya0d9AN6c44piza/JSFydZXw sY32nxzjDbs=
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