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HS 2.0: OSU server test functionality for incorrect behavior

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Add a mechanism to allow special incorrect behavior to be requested from
OSU server by adding an optional parameter test=<value> to the initial
signup URL. This is for protocol testing purposes for the OSU client.

This commit adds two special behavior cases: corrupt_aaa_hash and
corrupt_subrem_hash. These can be used to generate PPS MO with invalid
CertSHA256Fingerprint values for AAAServerTrustRoot and
SubscriptionUpdate nodes.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2018-10-17 19:08:12 +03:00 committed by Jouni Malinen
parent de7bcb9bc9
commit a9574f0f99
6 changed files with 74 additions and 12 deletions
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4
hs20/server/hs20_spp_server.c
View File

@ -70,6 +70,10 @@ static int process(struct hs20_svc *ctx)
ctx->addr = getenv("HS20ADDR");
if (ctx->addr)
debug_print(ctx, 1, "Connection from %s", ctx->addr);
ctx->test = getenv("HS20TEST");
if (ctx->test)
debug_print(ctx, 1, "Requested test functionality: %s",
ctx->test);
user = getenv("HS20USER");
if (user && strlen(user) == 0)

65
hs20/server/spp_server.c
View File

@ -69,14 +69,14 @@ static int db_add_session(struct hs20_svc *ctx,
else
addr[0] = '\0';
sql = sqlite3_mprintf("INSERT INTO sessions(timestamp,id,user,realm,"
"operation,password,redirect_uri,mac_addr) "
"operation,password,redirect_uri,mac_addr,test) "
"VALUES "
"(strftime('%%Y-%%m-%%d %%H:%%M:%%f','now'),"
"%Q,%Q,%Q,%d,%Q,%Q,%Q)",
"%Q,%Q,%Q,%d,%Q,%Q,%Q,%Q)",
sessionid, user ? user : "", realm ? realm : "",
operation, pw ? pw : "",
redirect_uri ? redirect_uri : "",
addr);
addr, ctx->test);
if (sql == NULL)
return -1;
debug_print(ctx, 1, "DB: %s", sql);
@ -336,6 +336,29 @@ static void add_text_node_conf(struct hs20_svc *ctx, const char *realm,
}
static void add_text_node_conf_corrupt(struct hs20_svc *ctx, const char *realm,
xml_node_t *parent, const char *name,
const char *field)
{
char *val;
val = db_get_osu_config_val(ctx, realm, field);
if (val) {
size_t len;
len = os_strlen(val);
if (len > 0) {
if (val[len - 1] == '0')
val[len - 1] = '1';
else
val[len - 1] = '0';
}
}
xml_node_create_text(ctx->xml, parent, NULL, name, val ? val : "");
os_free(val);
}
static int new_password(char *buf, int buflen)
{
int i;
@ -1241,7 +1264,7 @@ static char * db_get_osu_config_val(struct hs20_svc *ctx, const char *realm,
static xml_node_t * build_pps(struct hs20_svc *ctx,
const char *user, const char *realm,
const char *pw, const char *cert,
int machine_managed)
int machine_managed, const char *test)
{
xml_node_t *pps, *c, *trust, *aaa, *aaa1, *upd, *homesp;
xml_node_t *cred, *eap, *userpw;
@ -1261,8 +1284,16 @@ static xml_node_t * build_pps(struct hs20_svc *ctx,
aaa1 = xml_node_create(ctx->xml, aaa, NULL, "AAA1");
add_text_node_conf(ctx, realm, aaa1, "CertURL",
"aaa_trust_root_cert_url");
add_text_node_conf(ctx, realm, aaa1, "CertSHA256Fingerprint",
"aaa_trust_root_cert_fingerprint");
if (test && os_strcmp(test, "corrupt_aaa_hash") == 0) {
debug_print(ctx, 1,
"TEST: Corrupt PPS/Cred*/AAAServerTrustRoot/Root*/CertSHA256FingerPrint");
add_text_node_conf_corrupt(ctx, realm, aaa1,
"CertSHA256Fingerprint",
"aaa_trust_root_cert_fingerprint");
} else {
add_text_node_conf(ctx, realm, aaa1, "CertSHA256Fingerprint",
"aaa_trust_root_cert_fingerprint");
}
upd = xml_node_create(ctx->xml, c, NULL, "SubscriptionUpdate");
add_text_node(ctx, upd, "UpdateInterval", "4294967295");
@ -1271,8 +1302,16 @@ static xml_node_t * build_pps(struct hs20_svc *ctx,
add_text_node_conf(ctx, realm, upd, "URI", "spp_http_auth_url");
trust = xml_node_create(ctx->xml, upd, NULL, "TrustRoot");
add_text_node_conf(ctx, realm, trust, "CertURL", "trust_root_cert_url");
add_text_node_conf(ctx, realm, trust, "CertSHA256Fingerprint",
"trust_root_cert_fingerprint");
if (test && os_strcmp(test, "corrupt_subrem_hash") == 0) {
debug_print(ctx, 1,
"TEST: Corrupt PPS/Cred*/SubscriptionUpdate/Trustroot/CertSHA256FingerPrint");
add_text_node_conf_corrupt(ctx, realm, trust,
"CertSHA256Fingerprint",
"trust_root_cert_fingerprint");
} else {
add_text_node_conf(ctx, realm, trust, "CertSHA256Fingerprint",
"trust_root_cert_fingerprint");
}
homesp = xml_node_create(ctx->xml, c, NULL, "HomeSP");
add_text_node_conf(ctx, realm, homesp, "FriendlyName", "friendly_name");
@ -1356,7 +1395,7 @@ static xml_node_t * hs20_user_input_registration(struct hs20_svc *ctx,
xml_node_t *pps, *tnds;
char buf[400];
char *str;
char *user, *realm, *pw, *type, *mm;
char *user, *realm, *pw, *type, *mm, *test;
const char *status;
int cert = 0;
int machine_managed = 0;
@ -1415,9 +1454,15 @@ static xml_node_t * hs20_user_input_registration(struct hs20_svc *ctx,
return NULL;
fingerprint = db_get_session_val(ctx, NULL, NULL, session_id, "cert");
test = db_get_session_val(ctx, NULL, NULL, session_id, "test");
if (test)
debug_print(ctx, 1, "TEST: Requested special behavior: %s",
test);
pps = build_pps(ctx, user, realm, pw,
fingerprint ? fingerprint : NULL, machine_managed);
fingerprint ? fingerprint : NULL, machine_managed,
test);
free(fingerprint);
free(test);
if (!pps) {
xml_node_free(ctx->xml, spp_node);
free(user);

1
hs20/server/spp_server.h
View File

@ -16,6 +16,7 @@ struct hs20_svc {
FILE *debug_log;
sqlite3 *db;
const char *addr;
const char *test;
};

3
hs20/server/sql.txt
View File

@ -23,7 +23,8 @@ CREATE TABLE sessions(
devdetail TEXT,
cert TEXT,
cert_pem TEXT,
mac_addr TEXT
mac_addr TEXT,
test TEXT
);
CREATE index sessions_id_index ON sessions(id);

7
hs20/server/www/signup.php
View File

@ -15,11 +15,16 @@ if (!$db) {
die($sqliteerror);
}
$row = $db->query("SELECT realm FROM sessions WHERE id='$id'")->fetch();
$row = $db->query("SELECT realm,test FROM sessions WHERE id='$id'")->fetch();
if ($row == false) {
die("Session not found for id: $id");
}
$realm = $row['realm'];
$test = $row['test'];
if (strlen($test) > 0) {
echo "<p style=\"color:#FF0000\">Special test functionality: $test</red></big></p>\n";
}
echo "<h3>Sign up for a subscription - $realm</h3>\n";

6
hs20/server/www/spp.php
View File

@ -20,6 +20,11 @@ if (isset($_GET["realm"])) {
die("Realm not specified");
}
if (isset($_GET["test"]))
$test = PREG_REPLACE("/[^0-9a-zA-Z\_\-]/i", '', $_GET["test"]);
else
$test = "";
unset($user);
putenv("HS20CERT");
@ -100,6 +105,7 @@ $postdata = file_get_contents("php://input");
putenv("HS20POST=$postdata");
$addr = $_SERVER["REMOTE_ADDR"];
putenv("HS20ADDR=$addr");
putenv("HS20TEST=$test");
$last = exec("$osu_root/spp/hs20_spp_server -r$osu_root -f/tmp/hs20_spp_server.log", $output, $ret);