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ktls: Add a regression test to exercise socket error handling

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Prior to commit 916c61a5ed ("Fix handling of errors from
pru_send(PRUS_NOTREADY)") this test triggered a kernel panic due to an
mbuf double free.

Reviewed by:	jhb
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D33517
This commit is contained in:
Mark Johnston 2021-12-17 11:00:19 -05:00
parent d157f2627b
commit ee5686c614
1 changed files with 42 additions and 0 deletions
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42
tests/sys/kern/ktls_test.c
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@ -1722,6 +1722,45 @@ ATF_TC_BODY(ktls_receive_unsupported_##name, tc) \
*/
AES_CBC_TESTS(GEN_UNSUPPORTED_RECEIVE_TEST);
/*
* Try to perform an invalid sendto(2) on a TXTLS-enabled socket, to exercise
* KTLS error handling in the socket layer.
*/
ATF_TC_WITHOUT_HEAD(ktls_sendto_baddst);
ATF_TC_BODY(ktls_sendto_baddst, tc)
{
char buf[32];
struct sockaddr_in dst;
struct tls_enable en;
ssize_t n;
int s;
ATF_REQUIRE_KTLS();
s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
ATF_REQUIRE(s >= 0);
build_tls_enable(CRYPTO_AES_NIST_GCM_16, 128 / 8, 0,
TLS_MINOR_VER_THREE, (uint64_t)random(), &en);
ATF_REQUIRE(setsockopt(s, IPPROTO_TCP, TCP_TXTLS_ENABLE, &en,
sizeof(en)) == 0);
memset(&dst, 0, sizeof(dst));
dst.sin_family = AF_INET;
dst.sin_len = sizeof(dst);
dst.sin_addr.s_addr = htonl(INADDR_BROADCAST);
dst.sin_port = htons(12345);
memset(buf, 0, sizeof(buf));
n = sendto(s, buf, sizeof(buf), 0, (struct sockaddr *)&dst,
sizeof(dst));
/* Can't transmit to the broadcast address over TCP. */
ATF_REQUIRE_ERRNO(EACCES, n == -1);
ATF_REQUIRE(close(s) == 0);
}
ATF_TP_ADD_TCS(tp)
{
/* Transmit tests */
@ -1739,5 +1778,8 @@ ATF_TP_ADD_TCS(tp)
TLS_13_TESTS(ADD_PADDING_RECEIVE_TESTS);
INVALID_CIPHER_SUITES(ADD_INVALID_RECEIVE_TEST);
/* Miscellaneous */
ATF_TP_ADD_TC(tp, ktls_sendto_baddst);
return (atf_no_error());
}