From patchwork Fri Dec 15 02:36:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Safonov X-Patchwork-Id: 755047 Received: from mail-wm1-f48.google.com (mail-wm1-f48.google.com [209.85.128.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EB1F8182B3 for ; Fri, 15 Dec 2023 02:37:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=arista.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arista.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=arista.com header.i=@arista.com header.b="iBxGrXX0" Received: by mail-wm1-f48.google.com with SMTP id 5b1f17b1804b1-40c2718a768so2127215e9.0 for ; Thu, 14 Dec 2023 18:37:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arista.com; s=google; t=1702607860; x=1703212660; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ZoB20Z4taknKN2nNn3Ao0spFSo9FiNYZF6+WebJxYFY=; b=iBxGrXX0aJvSCYTuSaj2y8kE1/0t/i2TfuqQ1NIh1PHEB5Kkq6K73dskfGvzIhSi/M ESOKKdf5e3lN9Z1K0GUz2TPNW4YKG0YIFqHCazdyH5NChiZsD68owP6pdopgjkMOp8bi PEBolxVr0FfEbqRFMasspMzXjTh6YG6i2Q6vkRZICI6vwOPItOL4Jn28HpaEJog/bPYG wJL4y5sKSjpViLLlCLeJFBh4OixaS4kfW0lsTOtvqjaGuRsjlWkuxI2XRbgDz3O/4TVe 9weuksrj7AP9DyL3hmGF8L/v4UXg84Zvlp0ZIyikrB+mN+ibEE+4t3OMQoza3HPrK/kp jt8g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702607860; x=1703212660; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ZoB20Z4taknKN2nNn3Ao0spFSo9FiNYZF6+WebJxYFY=; b=pKiW5kc+thN1epLn4pNbq/9LMWemwSinfWZ6MoiNDzif8NIDhE9kClEsyWclHvRkW+ ZumC4UsY0n3bHObkJtA0cluShSDKp6UoprK86IY+m2T4R2OpKsNY/PrOjxJxgBmnTFR4 1QS1UCNloD+vyUtni7bD9VWzAiO98FacSsaFMFXrAeCl4jTcO3Rn+RCznC1yOBP1Pzxe b6WVs08zwOWe3sKPxx4GYtqz2jmi+TSl6K0Ts2iHWOa5LilWTec0fZiR/xfyGpMv2zLf iMgYoJYtVwcsaoCgOwlHk9W7nL5QzrDqV8TwLfafxJ5kk95AUao5SgGUseqthg675eO4 ySDA== X-Gm-Message-State: AOJu0YxwGzvI/anjaQ4xypnbMsPknP2C9M+KVXPgSAEsy/oeU5v4PeCd q9LwOu6UY36SFr0+bMnOy0bDAQ== X-Google-Smtp-Source: AGHT+IEOEtnR2nJAYUUx0rzp8BDmYs0Jv3/T46vcnatgT44Vwx/bGs1KoIAcvxoMDLZT7PN1WEmGZw== X-Received: by 2002:a7b:c7ca:0:b0:40b:5e1b:54a3 with SMTP id z10-20020a7bc7ca000000b0040b5e1b54a3mr6322378wmk.47.1702607860081; Thu, 14 Dec 2023 18:37:40 -0800 (PST) Received: from Mindolluin.ire.aristanetworks.com ([217.173.96.166]) by smtp.gmail.com with ESMTPSA id fc17-20020a05600c525100b0040c42681fcesm20096363wmb.15.2023.12.14.18.37.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 18:37:39 -0800 (PST) From: Dmitry Safonov To: Shuah Khan , David Ahern , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Dmitry Safonov , Salam Noureddine , Bob Gilligan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, netdev@vger.kernel.org, Dmitry Safonov <0x7f454c46@gmail.com> Subject: [PATCH 12/12] selftests/net: Add TCP-AO key-management test Date: Fri, 15 Dec 2023 02:36:26 +0000 Message-ID: <20231215-tcp-ao-selftests-v1-12-f6c08180b985@arista.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231215-tcp-ao-selftests-v1-0-f6c08180b985@arista.com> References: <20231215-tcp-ao-selftests-v1-0-f6c08180b985@arista.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mailer: b4 0.13-dev-b6b4b X-Developer-Signature: v=1; a=ed25519-sha256; t=1702607833; l=48219; i=dima@arista.com; s=20231212; h=from:subject:message-id; bh=rxeE3vLBGb+HCNqt464tYsXml7WXuyWtsftf7kXIo6c=; b=i4TQJDmZqld/IJGIY0IxszgpaOdI6xibNVsb3ZwA+AsOtY6la6ahb+zlOALJryxdO8UmZclft X0SLDoCRKN3C3btjzRPJVWvUnBJBbfzFHRyvMADpxjG9tdxOgAl43jj X-Developer-Key: i=dima@arista.com; a=ed25519; pk=hXINUhX25b0D/zWBKvd6zkvH7W2rcwh/CH6cjEa3OTk= Check multiple keys on a socket: - rotation on closed socket - current/rnext operations shouldn't be possible on listen sockets - current/rnext key set should be the one, that's used on connect() - key rotations with pseudo-random generated keys - copying matching keys on connect() and on accept() At this moment there are 3 tests that are "expected" to fail: a kernel fix is needed to improve the situation, they are marked XFAIL. Sample output: > # ./key-management_ipv4 > 1..120 > # 1601[lib/setup.c:239] rand seed 1700526653 > TAP version 13 > ok 1 closed socket, delete a key: the key was deleted > ok 2 closed socket, delete all keys: the key was deleted > ok 3 closed socket, delete current key: key deletion was prevented > ok 4 closed socket, delete rnext key: key deletion was prevented > ok 5 closed socket, delete a key + set current/rnext: the key was deleted > ok 6 closed socket, force-delete current key: the key was deleted > ok 7 closed socket, force-delete rnext key: the key was deleted > ok 8 closed socket, delete current+rnext key: key deletion was prevented > ok 9 closed socket, add + change current key > ok 10 closed socket, add + change rnext key > ok 11 listen socket, delete a key: the key was deleted > ok 12 listen socket, delete all keys: the key was deleted > ok 13 listen socket, setting current key not allowed > ok 14 listen socket, setting rnext key not allowed > ok 15 # XFAIL listen() after current/rnext keys set: the socket has current/rnext keys: 100:200 > ok 16 # XFAIL listen socket, delete current key from before listen(): failed to delete the key 100:100 -16 > ok 17 # XFAIL listen socket, delete rnext key from before listen(): failed to delete the key 200:200 -16 > ok 18 listen socket, getsockopt(TCP_AO_REPAIR) is restricted > ok 19 listen socket, setsockopt(TCP_AO_REPAIR) is restricted > ok 20 listen socket, delete a key + set current/rnext: key deletion was prevented > ok 21 listen socket, force-delete current key: key deletion was prevented > ok 22 listen socket, force-delete rnext key: key deletion was prevented > ok 23 listen socket, delete a key: the key was deleted > ok 24 listen socket, add + change current key > ok 25 listen socket, add + change rnext key > ok 26 server: Check current/rnext keys unset before connect(): The socket keys are consistent with the expectations > ok 27 client: Check current/rnext keys unset before connect(): current key 19 as expected > ok 28 client: Check current/rnext keys unset before connect(): rnext key 146 as expected > ok 29 server: Check current/rnext keys unset before connect(): server alive > ok 30 server: Check current/rnext keys unset before connect(): passed counters checks > ok 31 client: Check current/rnext keys unset before connect(): The socket keys are consistent with the expectations > ok 32 server: Check current/rnext keys unset before connect(): The socket keys are consistent with the expectations > ok 33 server: Check current/rnext keys unset before connect(): passed counters checks > ok 34 client: Check current/rnext keys unset before connect(): passed counters checks > ok 35 server: Check current/rnext keys set before connect(): The socket keys are consistent with the expectations > ok 36 server: Check current/rnext keys set before connect(): server alive > ok 37 server: Check current/rnext keys set before connect(): passed counters checks > ok 38 client: Check current/rnext keys set before connect(): current key 10 as expected > ok 39 client: Check current/rnext keys set before connect(): rnext key 137 as expected > ok 40 server: Check current/rnext keys set before connect(): The socket keys are consistent with the expectations > ok 41 client: Check current/rnext keys set before connect(): The socket keys are consistent with the expectations > ok 42 client: Check current/rnext keys set before connect(): passed counters checks > ok 43 server: Check current/rnext keys set before connect(): passed counters checks > ok 44 server: Check current != rnext keys set before connect(): The socket keys are consistent with the expectations > ok 45 server: Check current != rnext keys set before connect(): server alive > ok 46 server: Check current != rnext keys set before connect(): passed counters checks > ok 47 client: Check current != rnext keys set before connect(): current key 10 as expected > ok 48 client: Check current != rnext keys set before connect(): rnext key 132 as expected > ok 49 server: Check current != rnext keys set before connect(): The socket keys are consistent with the expectations > ok 50 client: Check current != rnext keys set before connect(): The socket keys are consistent with the expectations > ok 51 client: Check current != rnext keys set before connect(): passed counters checks > ok 52 server: Check current != rnext keys set before connect(): passed counters checks > ok 53 server: Check current flapping back on peer's RnextKey request: The socket keys are consistent with the expectations > ok 54 server: Check current flapping back on peer's RnextKey request: server alive > ok 55 server: Check current flapping back on peer's RnextKey request: passed counters checks > ok 56 client: Check current flapping back on peer's RnextKey request: current key 10 as expected > ok 57 client: Check current flapping back on peer's RnextKey request: rnext key 132 as expected > ok 58 server: Check current flapping back on peer's RnextKey request: The socket keys are consistent with the expectations > ok 59 client: Check current flapping back on peer's RnextKey request: The socket keys are consistent with the expectations > ok 60 server: Check current flapping back on peer's RnextKey request: passed counters checks > ok 61 client: Check current flapping back on peer's RnextKey request: passed counters checks > ok 62 server: Rotate over all different keys: The socket keys are consistent with the expectations > ok 63 server: Rotate over all different keys: server alive > ok 64 server: Rotate over all different keys: passed counters checks > ok 65 server: Rotate over all different keys: current key 128 as expected > ok 66 client: Rotate over all different keys: rnext key 128 as expected > ok 67 server: Rotate over all different keys: current key 129 as expected > ok 68 client: Rotate over all different keys: rnext key 129 as expected > ok 69 server: Rotate over all different keys: current key 130 as expected > ok 70 client: Rotate over all different keys: rnext key 130 as expected > ok 71 server: Rotate over all different keys: current key 131 as expected > ok 72 client: Rotate over all different keys: rnext key 131 as expected > ok 73 server: Rotate over all different keys: current key 132 as expected > ok 74 client: Rotate over all different keys: rnext key 132 as expected > ok 75 server: Rotate over all different keys: current key 133 as expected > ok 76 client: Rotate over all different keys: rnext key 133 as expected > ok 77 server: Rotate over all different keys: current key 134 as expected > ok 78 client: Rotate over all different keys: rnext key 134 as expected > ok 79 server: Rotate over all different keys: current key 135 as expected > ok 80 client: Rotate over all different keys: rnext key 135 as expected > ok 81 server: Rotate over all different keys: current key 136 as expected > ok 82 client: Rotate over all different keys: rnext key 136 as expected > ok 83 server: Rotate over all different keys: current key 137 as expected > ok 84 client: Rotate over all different keys: rnext key 137 as expected > ok 85 server: Rotate over all different keys: current key 138 as expected > ok 86 client: Rotate over all different keys: rnext key 138 as expected > ok 87 server: Rotate over all different keys: current key 139 as expected > ok 88 client: Rotate over all different keys: rnext key 139 as expected > ok 89 server: Rotate over all different keys: current key 140 as expected > ok 90 client: Rotate over all different keys: rnext key 140 as expected > ok 91 server: Rotate over all different keys: current key 141 as expected > ok 92 client: Rotate over all different keys: rnext key 141 as expected > ok 93 server: Rotate over all different keys: current key 142 as expected > ok 94 client: Rotate over all different keys: rnext key 142 as expected > ok 95 server: Rotate over all different keys: current key 143 as expected > ok 96 client: Rotate over all different keys: rnext key 143 as expected > ok 97 server: Rotate over all different keys: current key 144 as expected > ok 98 client: Rotate over all different keys: rnext key 144 as expected > ok 99 server: Rotate over all different keys: current key 145 as expected > ok 100 client: Rotate over all different keys: rnext key 145 as expected > ok 101 server: Rotate over all different keys: current key 146 as expected > ok 102 client: Rotate over all different keys: rnext key 146 as expected > ok 103 server: Rotate over all different keys: current key 127 as expected > ok 104 client: Rotate over all different keys: rnext key 127 as expected > ok 105 client: Rotate over all different keys: current key 0 as expected > ok 106 client: Rotate over all different keys: rnext key 127 as expected > ok 107 server: Rotate over all different keys: The socket keys are consistent with the expectations > ok 108 client: Rotate over all different keys: The socket keys are consistent with the expectations > ok 109 client: Rotate over all different keys: passed counters checks > ok 110 server: Rotate over all different keys: passed counters checks > ok 111 server: Check accept() => established key matching: The socket keys are consistent with the expectations > ok 112 Can't add a key with non-matching ip-address for established sk > ok 113 Can't add a key with non-matching VRF for established sk > ok 114 server: Check accept() => established key matching: server alive > ok 115 server: Check accept() => established key matching: passed counters checks > ok 116 client: Check connect() => established key matching: current key 0 as expected > ok 117 client: Check connect() => established key matching: rnext key 128 as expected > ok 118 client: Check connect() => established key matching: The socket keys are consistent with the expectations > ok 119 server: Check accept() => established key matching: The socket keys are consistent with the expectations > ok 120 server: Check accept() => established key matching: passed counters checks > # Totals: pass:120 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Dmitry Safonov --- tools/testing/selftests/net/tcp_ao/Makefile | 1 + .../testing/selftests/net/tcp_ao/key-management.c | 1180 ++++++++++++++++++++ 2 files changed, 1181 insertions(+) diff --git a/tools/testing/selftests/net/tcp_ao/Makefile b/tools/testing/selftests/net/tcp_ao/Makefile index 9286f9b99c86..6343cfcf919b 100644 --- a/tools/testing/selftests/net/tcp_ao/Makefile +++ b/tools/testing/selftests/net/tcp_ao/Makefile @@ -3,6 +3,7 @@ TEST_BOTH_AF := bench-lookups TEST_BOTH_AF += connect TEST_BOTH_AF += connect-deny TEST_BOTH_AF += icmps-accept icmps-discard +TEST_BOTH_AF += key-management TEST_BOTH_AF += restore TEST_BOTH_AF += rst TEST_BOTH_AF += self-connect diff --git a/tools/testing/selftests/net/tcp_ao/key-management.c b/tools/testing/selftests/net/tcp_ao/key-management.c new file mode 100644 index 000000000000..c48b4970ca17 --- /dev/null +++ b/tools/testing/selftests/net/tcp_ao/key-management.c @@ -0,0 +1,1180 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Author: Dmitry Safonov */ +#include +#include "../../../../include/linux/kernel.h" +#include "aolib.h" + +const size_t nr_packets = 20; +const size_t msg_len = 100; +const size_t quota = nr_packets * msg_len; +union tcp_addr wrong_addr; +#define SECOND_PASSWORD "at all times sincere friends of freedom have been rare" +#define fault(type) (inj == FAULT_ ## type) + +static const int test_vrf_ifindex = 200; +static const uint8_t test_vrf_tabid = 42; +static void setup_vrfs(void) +{ + int err; + + if (!kernel_config_has(KCONFIG_NET_VRF)) + return; + + err = add_vrf("ksft-vrf", test_vrf_tabid, test_vrf_ifindex, -1); + if (err) + test_error("Failed to add a VRF: %d", err); + + err = link_set_up("ksft-vrf"); + if (err) + test_error("Failed to bring up a VRF"); + + err = ip_route_add_vrf(veth_name, TEST_FAMILY, + this_ip_addr, this_ip_dest, test_vrf_tabid); + if (err) + test_error("Failed to add a route to VRF"); +} + + +static int prepare_sk(union tcp_addr *addr, uint8_t sndid, uint8_t rcvid) +{ + int sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP); + + if (sk < 0) + test_error("socket()"); + + if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, + DEFAULT_TEST_PREFIX, 100, 100)) + test_error("test_add_key()"); + + if (addr && test_add_key(sk, SECOND_PASSWORD, *addr, + DEFAULT_TEST_PREFIX, sndid, rcvid)) + test_error("test_add_key()"); + + return sk; +} + +static int prepare_lsk(union tcp_addr *addr, uint8_t sndid, uint8_t rcvid) +{ + int sk = prepare_sk(addr, sndid, rcvid); + + if (listen(sk, 10)) + test_error("listen()"); + + return sk; +} + +static int test_del_key(int sk, uint8_t sndid, uint8_t rcvid, bool async, + int current_key, int rnext_key) +{ + struct tcp_ao_info_opt ao_info = {}; + struct tcp_ao_getsockopt key = {}; + struct tcp_ao_del del = {}; + sockaddr_af sockaddr; + int err; + + tcp_addr_to_sockaddr_in(&del.addr, &this_ip_dest, 0); + del.prefix = DEFAULT_TEST_PREFIX; + del.sndid = sndid; + del.rcvid = rcvid; + + if (current_key >= 0) { + del.set_current = 1; + del.current_key = (uint8_t)current_key; + } + if (rnext_key >= 0) { + del.set_rnext = 1; + del.rnext = (uint8_t)rnext_key; + } + + err = setsockopt(sk, IPPROTO_TCP, TCP_AO_DEL_KEY, &del, sizeof(del)); + if (err < 0) + return -errno; + + if (async) + return 0; + + tcp_addr_to_sockaddr_in(&sockaddr, &this_ip_dest, 0); + err = test_get_one_ao(sk, &key, &sockaddr, sizeof(sockaddr), + DEFAULT_TEST_PREFIX, sndid, rcvid); + if (!err) + return -EEXIST; + if (err != -E2BIG) + test_error("getsockopt()"); + if (current_key < 0 && rnext_key < 0) + return 0; + if (test_get_ao_info(sk, &ao_info)) + test_error("getsockopt(TCP_AO_INFO) failed"); + if (current_key >= 0 && ao_info.current_key != (uint8_t)current_key) + return -ENOTRECOVERABLE; + if (rnext_key >= 0 && ao_info.rnext != (uint8_t)rnext_key) + return -ENOTRECOVERABLE; + return 0; +} + +static void try_delete_key(char *tst_name, int sk, uint8_t sndid, uint8_t rcvid, + bool async, int current_key, int rnext_key, + fault_t inj) +{ + int err; + + err = test_del_key(sk, sndid, rcvid, async, current_key, rnext_key); + if ((err == -EBUSY && fault(BUSY)) || (err == -EINVAL && fault(CURRNEXT))) { + test_ok("%s: key deletion was prevented", tst_name); + return; + } + if (err && fault(FIXME)) { + test_xfail("%s: failed to delete the key %u:%u %d", + tst_name, sndid, rcvid, err); + return; + } + if (!err) { + if (fault(BUSY) || fault(CURRNEXT)) { + test_fail("%s: the key was deleted %u:%u %d", tst_name, + sndid, rcvid, err); + } else { + test_ok("%s: the key was deleted", tst_name); + } + return; + } + test_fail("%s: can't delete the key %u:%u %d", tst_name, sndid, rcvid, err); +} + +static int test_set_key(int sk, int current_keyid, int rnext_keyid) +{ + struct tcp_ao_info_opt ao_info = {}; + int err; + + if (current_keyid >= 0) { + ao_info.set_current = 1; + ao_info.current_key = (uint8_t)current_keyid; + } + if (rnext_keyid >= 0) { + ao_info.set_rnext = 1; + ao_info.rnext = (uint8_t)rnext_keyid; + } + + err = test_set_ao_info(sk, &ao_info); + if (err) + return err; + if (test_get_ao_info(sk, &ao_info)) + test_error("getsockopt(TCP_AO_INFO) failed"); + if (current_keyid >= 0 && ao_info.current_key != (uint8_t)current_keyid) + return -ENOTRECOVERABLE; + if (rnext_keyid >= 0 && ao_info.rnext != (uint8_t)rnext_keyid) + return -ENOTRECOVERABLE; + return 0; +} + +static int test_add_current_rnext_key(int sk, const char *key, uint8_t keyflags, + union tcp_addr in_addr, uint8_t prefix, + bool set_current, bool set_rnext, + uint8_t sndid, uint8_t rcvid) +{ + struct tcp_ao_add tmp = {}; + int err; + + err = test_prepare_key(&tmp, DEFAULT_TEST_ALGO, in_addr, + set_current, set_rnext, + prefix, 0, sndid, rcvid, 0, keyflags, + strlen(key), key); + if (err) + return err; + + + err = setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &tmp, sizeof(tmp)); + if (err < 0) + return -errno; + + return test_verify_socket_key(sk, &tmp); +} + +static int __try_add_current_rnext_key(int sk, const char *key, uint8_t keyflags, + union tcp_addr in_addr, uint8_t prefix, + bool set_current, bool set_rnext, + uint8_t sndid, uint8_t rcvid) +{ + struct tcp_ao_info_opt ao_info = {}; + int err; + + err = test_add_current_rnext_key(sk, key, keyflags, in_addr, prefix, + set_current, set_rnext, sndid, rcvid); + if (err) + return err; + + if (test_get_ao_info(sk, &ao_info)) + test_error("getsockopt(TCP_AO_INFO) failed"); + if (set_current && ao_info.current_key != sndid) + return -ENOTRECOVERABLE; + if (set_rnext && ao_info.rnext != rcvid) + return -ENOTRECOVERABLE; + return 0; +} + +static void try_add_current_rnext_key(char *tst_name, int sk, const char *key, + uint8_t keyflags, + union tcp_addr in_addr, uint8_t prefix, + bool set_current, bool set_rnext, + uint8_t sndid, uint8_t rcvid, fault_t inj) +{ + int err; + + err = __try_add_current_rnext_key(sk, key, keyflags, in_addr, prefix, + set_current, set_rnext, sndid, rcvid); + if (!err && !fault(CURRNEXT)) { + test_ok("%s", tst_name); + return; + } + if (err == -EINVAL && fault(CURRNEXT)) { + test_ok("%s", tst_name); + return; + } + test_fail("%s", tst_name); +} + +static void check_closed_socket(void) +{ + int sk; + + sk = prepare_sk(&this_ip_dest, 200, 200); + try_delete_key("closed socket, delete a key", sk, 200, 200, 0, -1, -1, 0); + try_delete_key("closed socket, delete all keys", sk, 100, 100, 0, -1, -1, 0); + close(sk); + + sk = prepare_sk(&this_ip_dest, 200, 200); + if (test_set_key(sk, 100, 200)) + test_error("failed to set current/rnext keys"); + try_delete_key("closed socket, delete current key", sk, 100, 100, 0, -1, -1, FAULT_BUSY); + try_delete_key("closed socket, delete rnext key", sk, 200, 200, 0, -1, -1, FAULT_BUSY); + close(sk); + + sk = prepare_sk(&this_ip_dest, 200, 200); + if (test_add_key(sk, "Glory to heros!", this_ip_dest, + DEFAULT_TEST_PREFIX, 10, 11)) + test_error("test_add_key()"); + if (test_add_key(sk, "Glory to Ukraine!", this_ip_dest, + DEFAULT_TEST_PREFIX, 12, 13)) + test_error("test_add_key()"); + try_delete_key("closed socket, delete a key + set current/rnext", sk, 100, 100, 0, 10, 13, 0); + try_delete_key("closed socket, force-delete current key", sk, 10, 11, 0, 200, -1, 0); + try_delete_key("closed socket, force-delete rnext key", sk, 12, 13, 0, -1, 200, 0); + try_delete_key("closed socket, delete current+rnext key", sk, 200, 200, 0, -1, -1, FAULT_BUSY); + close(sk); + + sk = prepare_sk(&this_ip_dest, 200, 200); + if (test_set_key(sk, 100, 200)) + test_error("failed to set current/rnext keys"); + try_add_current_rnext_key("closed socket, add + change current key", + sk, "Laaaa! Lalala-la-la-lalala...", 0, + this_ip_dest, DEFAULT_TEST_PREFIX, + true, false, 10, 20, 0); + try_add_current_rnext_key("closed socket, add + change rnext key", + sk, "Laaaa! Lalala-la-la-lalala...", 0, + this_ip_dest, DEFAULT_TEST_PREFIX, + false, true, 20, 10, 0); + close(sk); +} + +static void assert_no_current_rnext(const char *tst_msg, int sk) +{ + struct tcp_ao_info_opt ao_info = {}; + + if (test_get_ao_info(sk, &ao_info)) + test_error("getsockopt(TCP_AO_INFO) failed"); + + errno = 0; + if (ao_info.set_current || ao_info.set_rnext) { + test_xfail("%s: the socket has current/rnext keys: %d:%d", + tst_msg, + (ao_info.set_current) ? ao_info.current_key : -1, + (ao_info.set_rnext) ? ao_info.rnext : -1); + } else { + test_ok("%s: the socket has no current/rnext keys", tst_msg); + } +} + +static void assert_no_tcp_repair(void) +{ + struct tcp_ao_repair ao_img = {}; + socklen_t len = sizeof(ao_img); + int sk, err; + + sk = prepare_sk(&this_ip_dest, 200, 200); + test_enable_repair(sk); + if (listen(sk, 10)) + test_error("listen()"); + errno = 0; + err = getsockopt(sk, SOL_TCP, TCP_AO_REPAIR, &ao_img, &len); + if (err && errno == EPERM) + test_ok("listen socket, getsockopt(TCP_AO_REPAIR) is restricted"); + else + test_fail("listen socket, getsockopt(TCP_AO_REPAIR) works"); + errno = 0; + err = setsockopt(sk, SOL_TCP, TCP_AO_REPAIR, &ao_img, sizeof(ao_img)); + if (err && errno == EPERM) + test_ok("listen socket, setsockopt(TCP_AO_REPAIR) is restricted"); + else + test_fail("listen socket, setsockopt(TCP_AO_REPAIR) works"); + close(sk); +} + +static void check_listen_socket(void) +{ + int sk, err; + + sk = prepare_lsk(&this_ip_dest, 200, 200); + try_delete_key("listen socket, delete a key", sk, 200, 200, 0, -1, -1, 0); + try_delete_key("listen socket, delete all keys", sk, 100, 100, 0, -1, -1, 0); + close(sk); + + sk = prepare_lsk(&this_ip_dest, 200, 200); + err = test_set_key(sk, 100, -1); + if (err == -EINVAL) + test_ok("listen socket, setting current key not allowed"); + else + test_fail("listen socket, set current key"); + err = test_set_key(sk, -1, 200); + if (err == -EINVAL) + test_ok("listen socket, setting rnext key not allowed"); + else + test_fail("listen socket, set rnext key"); + close(sk); + + sk = prepare_sk(&this_ip_dest, 200, 200); + if (test_set_key(sk, 100, 200)) + test_error("failed to set current/rnext keys"); + if (listen(sk, 10)) + test_error("listen()"); + assert_no_current_rnext("listen() after current/rnext keys set", sk); + try_delete_key("listen socket, delete current key from before listen()", sk, 100, 100, 0, -1, -1, FAULT_FIXME); + try_delete_key("listen socket, delete rnext key from before listen()", sk, 200, 200, 0, -1, -1, FAULT_FIXME); + close(sk); + + assert_no_tcp_repair(); + + sk = prepare_lsk(&this_ip_dest, 200, 200); + if (test_add_key(sk, "Glory to heros!", this_ip_dest, + DEFAULT_TEST_PREFIX, 10, 11)) + test_error("test_add_key()"); + if (test_add_key(sk, "Glory to Ukraine!", this_ip_dest, + DEFAULT_TEST_PREFIX, 12, 13)) + test_error("test_add_key()"); + try_delete_key("listen socket, delete a key + set current/rnext", sk, + 100, 100, 0, 10, 13, FAULT_CURRNEXT); + try_delete_key("listen socket, force-delete current key", sk, + 10, 11, 0, 200, -1, FAULT_CURRNEXT); + try_delete_key("listen socket, force-delete rnext key", sk, + 12, 13, 0, -1, 200, FAULT_CURRNEXT); + try_delete_key("listen socket, delete a key", sk, + 200, 200, 0, -1, -1, 0); + close(sk); + + sk = prepare_lsk(&this_ip_dest, 200, 200); + try_add_current_rnext_key("listen socket, add + change current key", + sk, "Laaaa! Lalala-la-la-lalala...", 0, + this_ip_dest, DEFAULT_TEST_PREFIX, + true, false, 10, 20, FAULT_CURRNEXT); + try_add_current_rnext_key("listen socket, add + change rnext key", + sk, "Laaaa! Lalala-la-la-lalala...", 0, + this_ip_dest, DEFAULT_TEST_PREFIX, + false, true, 20, 10, FAULT_CURRNEXT); + close(sk); +} + +static const char *fips_fpath = "/proc/sys/crypto/fips_enabled"; +static bool is_fips_enabled(void) +{ + static int fips_checked = -1; + FILE *fenabled; + int enabled; + + if (fips_checked >= 0) + return !!fips_checked; + if (access(fips_fpath, R_OK)) { + if (errno != ENOENT) + test_error("Can't open %s", fips_fpath); + fips_checked = 0; + return false; + } + fenabled = fopen(fips_fpath, "r"); + if (!fenabled) + test_error("Can't open %s", fips_fpath); + if (fscanf(fenabled, "%d", &enabled) != 1) + test_error("Can't read from %s", fips_fpath); + fclose(fenabled); + fips_checked = !!enabled; + return !!fips_checked; +} + +struct test_key { + char password[TCP_AO_MAXKEYLEN]; + const char *alg; + unsigned int len; + uint8_t client_keyid; + uint8_t server_keyid; + uint8_t maclen; + uint8_t matches_client : 1, + matches_server : 1, + matches_vrf : 1, + is_current : 1, + is_rnext : 1, + used_on_handshake : 1, + used_after_accept : 1, + used_on_client : 1; +}; + +struct key_collection { + unsigned int nr_keys; + struct test_key *keys; +}; + +static struct key_collection collection; + +#define TEST_MAX_MACLEN 16 +const char *test_algos[] = { + "cmac(aes128)", + "hmac(sha1)", "hmac(sha512)", "hmac(sha384)", "hmac(sha256)", + "hmac(sha224)", "hmac(sha3-512)", + /* only if !CONFIG_FIPS */ +#define TEST_NON_FIPS_ALGOS 2 + "hmac(rmd160)", "hmac(md5)" +}; +const unsigned int test_maclens[] = { 1, 4, 12, 16 }; +#define MACLEN_SHIFT 2 +#define ALGOS_SHIFT 4 + +static unsigned int make_mask(unsigned int shift, unsigned int prev_shift) +{ + unsigned int ret = BIT(shift) - 1; + + return ret << prev_shift; +} + +static void init_key_in_collection(unsigned int index, bool randomized) +{ + struct test_key *key = &collection.keys[index]; + unsigned int algos_nr, algos_index; + + /* Same for randomized and non-randomized test flows */ + key->client_keyid = index; + key->server_keyid = 127 + index; + key->matches_client = 1; + key->matches_server = 1; + key->matches_vrf = 1; + /* not really even random, but good enough for a test */ + key->len = rand() % (TCP_AO_MAXKEYLEN - TEST_TCP_AO_MINKEYLEN); + key->len += TEST_TCP_AO_MINKEYLEN; + randomize_buffer(key->password, key->len); + + if (randomized) { + key->maclen = (rand() % TEST_MAX_MACLEN) + 1; + algos_index = rand(); + } else { + unsigned int shift = MACLEN_SHIFT; + + key->maclen = test_maclens[index & make_mask(shift, 0)]; + algos_index = index & make_mask(ALGOS_SHIFT, shift); + } + algos_nr = ARRAY_SIZE(test_algos); + if (is_fips_enabled()) + algos_nr -= TEST_NON_FIPS_ALGOS; + key->alg = test_algos[algos_index % algos_nr]; +} + +static int init_default_key_collection(unsigned int nr_keys, bool randomized) +{ + size_t key_sz = sizeof(collection.keys[0]); + + if (!nr_keys) { + free(collection.keys); + collection.keys = NULL; + return 0; + } + + /* + * All keys have uniq sndid/rcvid and sndid != rcvid in order to + * check for any bugs/issues for different keyids, visible to both + * peers. Keyid == 254 is unused. + */ + if (nr_keys > 127) + test_error("Test requires too many keys, correct the source"); + + collection.keys = reallocarray(collection.keys, nr_keys, key_sz); + if (!collection.keys) + return -ENOMEM; + + memset(collection.keys, 0, nr_keys * key_sz); + collection.nr_keys = nr_keys; + while (nr_keys--) + init_key_in_collection(nr_keys, randomized); + + return 0; +} + +static void test_key_error(const char *msg, struct test_key *key) +{ + test_error("%s: key: { %s, %u:%u, %u, %u:%u:%u:%u:%u (%u)}", + msg, key->alg, key->client_keyid, key->server_keyid, + key->maclen, key->matches_client, key->matches_server, + key->matches_vrf, key->is_current, key->is_rnext, key->len); +} + +static int test_add_key_cr(int sk, const char *pwd, unsigned int pwd_len, + union tcp_addr addr, uint8_t vrf, + uint8_t sndid, uint8_t rcvid, + uint8_t maclen, const char *alg, + bool set_current, bool set_rnext) +{ + struct tcp_ao_add tmp = {}; + uint8_t keyflags = 0; + int err; + + if (!alg) + alg = DEFAULT_TEST_ALGO; + + if (vrf) + keyflags |= TCP_AO_KEYF_IFINDEX; + err = test_prepare_key(&tmp, alg, addr, set_current, set_rnext, + DEFAULT_TEST_PREFIX, vrf, sndid, rcvid, maclen, + keyflags, pwd_len, pwd); + if (err) + return err; + + err = setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &tmp, sizeof(tmp)); + if (err < 0) + return -errno; + + return test_verify_socket_key(sk, &tmp); +} + +static void verify_current_rnext(const char *tst, int sk, + int current_keyid, int rnext_keyid) +{ + struct tcp_ao_info_opt ao_info = {}; + + if (test_get_ao_info(sk, &ao_info)) + test_error("getsockopt(TCP_AO_INFO) failed"); + + errno = 0; + if (current_keyid >= 0) { + if (!ao_info.set_current) + test_fail("%s: the socket doesn't have current key", tst); + else if (ao_info.current_key != current_keyid) + test_fail("%s: current key is not the expected one %d != %u", + tst, current_keyid, ao_info.current_key); + else + test_ok("%s: current key %u as expected", + tst, ao_info.current_key); + } + if (rnext_keyid >= 0) { + if (!ao_info.set_rnext) + test_fail("%s: the socket doesn't have rnext key", tst); + else if (ao_info.rnext != rnext_keyid) + test_fail("%s: rnext key is not the expected one %d != %u", + tst, rnext_keyid, ao_info.rnext); + else + test_ok("%s: rnext key %u as expected", tst, ao_info.rnext); + } +} + + +static int key_collection_socket(bool server, unsigned int port) +{ + unsigned int i; + int sk; + + if (server) + sk = test_listen_socket(this_ip_addr, port, 1); + else + sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP); + if (sk < 0) + test_error("socket()"); + + for (i = 0; i < collection.nr_keys; i++) { + struct test_key *key = &collection.keys[i]; + union tcp_addr *addr = &wrong_addr; + uint8_t sndid, rcvid, vrf; + bool set_current = false, set_rnext = false; + + if (key->matches_vrf) + vrf = 0; + else + vrf = test_vrf_ifindex; + if (server) { + if (key->matches_client) + addr = &this_ip_dest; + sndid = key->server_keyid; + rcvid = key->client_keyid; + } else { + if (key->matches_server) + addr = &this_ip_dest; + sndid = key->client_keyid; + rcvid = key->server_keyid; + set_current = key->is_current; + set_rnext = key->is_rnext; + } + + if (test_add_key_cr(sk, key->password, key->len, + *addr, vrf, sndid, rcvid, key->maclen, + key->alg, set_current, set_rnext)) + test_key_error("setsockopt(TCP_AO_ADD_KEY)", key); + if (set_current || set_rnext) + key->used_on_handshake = 1; +#ifdef DEBUG + test_print("%s [%u/%u] key: { %s, %u:%u, %u, %u:%u:%u:%u (%u)}", + server ? "server" : "client", i, collection.nr_keys, + key->alg, rcvid, sndid, key->maclen, + key->matches_client, key->matches_server, + key->is_current, key->is_rnext, key->len); +#endif + } + return sk; +} + +static void verify_counters(const char *tst_name, bool is_listen_sk, bool server, + struct tcp_ao_counters *a, struct tcp_ao_counters *b) +{ + unsigned int i; + + __test_tcp_ao_counters_cmp(tst_name, a, b, TEST_CNT_GOOD); + + for (i = 0; i < collection.nr_keys; i++) { + struct test_key *key = &collection.keys[i]; + uint8_t sndid, rcvid; + bool was_used; + + if (server) { + sndid = key->server_keyid; + rcvid = key->client_keyid; + if (is_listen_sk) + was_used = key->used_on_handshake; + else + was_used = key->used_after_accept; + } else { + sndid = key->client_keyid; + rcvid = key->server_keyid; + was_used = key->used_on_client; + } + + test_tcp_ao_key_counters_cmp(tst_name, a, b, was_used, + sndid, rcvid); + } + test_tcp_ao_counters_free(a); + test_tcp_ao_counters_free(b); + test_ok("%s: passed counters checks", tst_name); +} + +static struct tcp_ao_getsockopt *lookup_key(struct tcp_ao_getsockopt *buf, + size_t len, int sndid, int rcvid) +{ + size_t i; + + for (i = 0; i < len; i++) { + if (sndid >= 0 && buf[i].sndid != sndid) + continue; + if (rcvid >= 0 && buf[i].rcvid != rcvid) + continue; + return &buf[i]; + } + return NULL; +} + +static void verify_keys(const char *tst_name, int sk, + bool is_listen_sk, bool server) +{ + socklen_t len = sizeof(struct tcp_ao_getsockopt); + struct tcp_ao_getsockopt *keys; + bool passed_test = true; + unsigned int i; + + keys = calloc(collection.nr_keys, len); + if (!keys) + test_error("calloc()"); + + keys->nkeys = collection.nr_keys; + keys->get_all = 1; + + if (getsockopt(sk, IPPROTO_TCP, TCP_AO_GET_KEYS, keys, &len)) { + free(keys); + test_error("getsockopt(TCP_AO_GET_KEYS)"); + } + + for (i = 0; i < collection.nr_keys; i++) { + struct test_key *key = &collection.keys[i]; + struct tcp_ao_getsockopt *dump_key; + bool is_kdf_aes_128_cmac = false; + bool is_cmac_aes = false; + uint8_t sndid, rcvid; + bool matches = false; + + if (server) { + if (key->matches_client) + matches = true; + sndid = key->server_keyid; + rcvid = key->client_keyid; + } else { + if (key->matches_server) + matches = true; + sndid = key->client_keyid; + rcvid = key->server_keyid; + } + if (!key->matches_vrf) + matches = false; + /* no keys get removed on the original listener socket */ + if (is_listen_sk) + matches = true; + + dump_key = lookup_key(keys, keys->nkeys, sndid, rcvid); + if (matches != !!dump_key) { + test_fail("%s: key %u:%u %s%s on the socket", + tst_name, sndid, rcvid, + key->matches_vrf ? "" : "[vrf] ", + matches ? "disappeared" : "yet present"); + passed_test = false; + goto out; + } + if (!dump_key) + continue; + + if (!strcmp("cmac(aes128)", key->alg)) { + is_kdf_aes_128_cmac = (key->len != 16); + is_cmac_aes = true; + } + + if (is_cmac_aes) { + if (strcmp(dump_key->alg_name, "cmac(aes)")) { + test_fail("%s: key %u:%u cmac(aes) has unexpected alg %s", + tst_name, sndid, rcvid, + dump_key->alg_name); + passed_test = false; + continue; + } + } else if (strcmp(dump_key->alg_name, key->alg)) { + test_fail("%s: key %u:%u has unexpected alg %s != %s", + tst_name, sndid, rcvid, + dump_key->alg_name, key->alg); + passed_test = false; + continue; + } + if (is_kdf_aes_128_cmac) { + if (dump_key->keylen != 16) { + test_fail("%s: key %u:%u cmac(aes128) has unexpected len %u", + tst_name, sndid, rcvid, + dump_key->keylen); + continue; + } + } else if (dump_key->keylen != key->len) { + test_fail("%s: key %u:%u changed password len %u != %u", + tst_name, sndid, rcvid, + dump_key->keylen, key->len); + passed_test = false; + continue; + } + if (!is_kdf_aes_128_cmac && + memcmp(dump_key->key, key->password, key->len)) { + test_fail("%s: key %u:%u has different password", + tst_name, sndid, rcvid); + passed_test = false; + continue; + } + if (dump_key->maclen != key->maclen) { + test_fail("%s: key %u:%u changed maclen %u != %u", + tst_name, sndid, rcvid, + dump_key->maclen, key->maclen); + passed_test = false; + continue; + } + } + + if (passed_test) + test_ok("%s: The socket keys are consistent with the expectations", + tst_name); +out: + free(keys); +} + +static int start_server(const char *tst_name, unsigned int port, size_t quota, + struct tcp_ao_counters *begin, + unsigned int current_index, unsigned int rnext_index) +{ + struct tcp_ao_counters lsk_c1, lsk_c2; + ssize_t bytes; + int sk, lsk; + + synchronize_threads(); /* 1: key collection initialized */ + lsk = key_collection_socket(true, port); + if (test_get_tcp_ao_counters(lsk, &lsk_c1)) + test_error("test_get_tcp_ao_counters()"); + synchronize_threads(); /* 2: MKTs added => connect() */ + if (test_wait_fd(lsk, TEST_TIMEOUT_SEC, 0)) + test_error("test_wait_fd()"); + + sk = accept(lsk, NULL, NULL); + if (sk < 0) + test_error("accept()"); + if (test_get_tcp_ao_counters(sk, begin)) + test_error("test_get_tcp_ao_counters()"); + + synchronize_threads(); /* 3: accepted => send data */ + if (test_get_tcp_ao_counters(lsk, &lsk_c2)) + test_error("test_get_tcp_ao_counters()"); + verify_keys(tst_name, lsk, true, true); + close(lsk); + + bytes = test_server_run(sk, quota, TEST_TIMEOUT_SEC); + if (bytes != quota) + test_fail("%s: server served: %zd", tst_name, bytes); + else + test_ok("%s: server alive", tst_name); + + verify_counters(tst_name, true, true, &lsk_c1, &lsk_c2); + + return sk; +} + +static void end_server(const char *tst_name, int sk, + struct tcp_ao_counters *begin) +{ + struct tcp_ao_counters end; + + if (test_get_tcp_ao_counters(sk, &end)) + test_error("test_get_tcp_ao_counters()"); + verify_keys(tst_name, sk, false, true); + + synchronize_threads(); /* 4: verified => closed */ + close(sk); + + verify_counters(tst_name, true, false, begin, &end); + synchronize_threads(); /* 5: counters */ +} + +static void try_server_run(const char *tst_name, unsigned int port, size_t quota, + unsigned int current_index, unsigned int rnext_index) +{ + struct tcp_ao_counters tmp; + int sk; + + sk = start_server(tst_name, port, quota, &tmp, + current_index, rnext_index); + end_server(tst_name, sk, &tmp); +} + +static void server_rotations(const char *tst_name, unsigned int port, + size_t quota, unsigned int rotations, + unsigned int current_index, unsigned int rnext_index) +{ + struct tcp_ao_counters tmp; + unsigned int i; + int sk; + + sk = start_server(tst_name, port, quota, &tmp, + current_index, rnext_index); + + for (i = current_index + 1; rotations > 0; i++, rotations--) { + ssize_t bytes; + + if (i >= collection.nr_keys) + i = 0; + bytes = test_server_run(sk, quota, TEST_TIMEOUT_SEC); + if (bytes != quota) { + test_fail("%s: server served: %zd", tst_name, bytes); + return; + } + verify_current_rnext(tst_name, sk, + collection.keys[i].server_keyid, -1); + synchronize_threads(); /* verify current/rnext */ + } + end_server(tst_name, sk, &tmp); +} + +static int run_client(const char *tst_name, unsigned int port, + unsigned int nr_keys, int current_index, int rnext_index, + struct tcp_ao_counters *before, + const size_t msg_sz, const size_t msg_nr) +{ + int sk; + + synchronize_threads(); /* 1: key collection initialized */ + sk = key_collection_socket(false, port); + + if (current_index >= 0 || rnext_index >= 0) { + int sndid = -1, rcvid = -1; + + if (current_index >= 0) + sndid = collection.keys[current_index].client_keyid; + if (rnext_index >= 0) + rcvid = collection.keys[rnext_index].server_keyid; + if (test_set_key(sk, sndid, rcvid)) + test_error("failed to set current/rnext keys"); + } + if (before && test_get_tcp_ao_counters(sk, before)) + test_error("test_get_tcp_ao_counters()"); + + synchronize_threads(); /* 2: MKTs added => connect() */ + if (test_connect_socket(sk, this_ip_dest, port++) <= 0) + test_error("failed to connect()"); + if (current_index < 0) + current_index = nr_keys - 1; + if (rnext_index < 0) + rnext_index = nr_keys - 1; + collection.keys[current_index].used_on_handshake = 1; + collection.keys[rnext_index].used_after_accept = 1; + collection.keys[rnext_index].used_on_client = 1; + + synchronize_threads(); /* 3: accepted => send data */ + if (test_client_verify(sk, msg_sz, msg_nr, TEST_TIMEOUT_SEC)) { + test_fail("verify failed"); + close(sk); + if (before) + test_tcp_ao_counters_free(before); + return -1; + } + + return sk; +} + +static int start_client(const char *tst_name, unsigned int port, + unsigned int nr_keys, int current_index, int rnext_index, + struct tcp_ao_counters *before, + const size_t msg_sz, const size_t msg_nr) +{ + if (init_default_key_collection(nr_keys, true)) + test_error("Failed to init the key collection"); + + return run_client(tst_name, port, nr_keys, current_index, + rnext_index, before, msg_sz, msg_nr); +} + +static void end_client(const char *tst_name, int sk, unsigned int nr_keys, + int current_index, int rnext_index, + struct tcp_ao_counters *start) +{ + struct tcp_ao_counters end; + + /* Some application may become dependent on this kernel choice */ + if (current_index < 0) + current_index = nr_keys - 1; + if (rnext_index < 0) + rnext_index = nr_keys - 1; + verify_current_rnext(tst_name, sk, + collection.keys[current_index].client_keyid, + collection.keys[rnext_index].server_keyid); + if (start && test_get_tcp_ao_counters(sk, &end)) + test_error("test_get_tcp_ao_counters()"); + verify_keys(tst_name, sk, false, false); + synchronize_threads(); /* 4: verify => closed */ + close(sk); + if (start) + verify_counters(tst_name, false, false, start, &end); + synchronize_threads(); /* 5: counters */ +} + +static void try_unmatched_keys(int sk, int *rnext_index) +{ + struct test_key *key; + unsigned int i = 0; + int err; + + do { + key = &collection.keys[i]; + if (!key->matches_server) + break; + } while (++i < collection.nr_keys); + if (key->matches_server) + test_error("all keys on client match the server"); + + err = test_add_key_cr(sk, key->password, key->len, wrong_addr, + 0, key->client_keyid, key->server_keyid, + key->maclen, key->alg, 0, 0); + if (!err) { + test_fail("Added a key with non-matching ip-address for established sk"); + return; + } + if (err == -EINVAL) + test_ok("Can't add a key with non-matching ip-address for established sk"); + else + test_error("Failed to add a key"); + + err = test_add_key_cr(sk, key->password, key->len, this_ip_dest, + test_vrf_ifindex, + key->client_keyid, key->server_keyid, + key->maclen, key->alg, 0, 0); + if (!err) { + test_fail("Added a key with non-matching VRF for established sk"); + return; + } + if (err == -EINVAL) + test_ok("Can't add a key with non-matching VRF for established sk"); + else + test_error("Failed to add a key"); + + for (i = 0; i < collection.nr_keys; i++) { + key = &collection.keys[i]; + if (!key->matches_client) + break; + } + if (key->matches_client) + test_error("all keys on server match the client"); + if (test_set_key(sk, -1, key->server_keyid)) + test_error("Can't change the current key"); + if (test_client_verify(sk, msg_len, nr_packets, TEST_TIMEOUT_SEC)) + test_fail("verify failed"); + *rnext_index = i; +} + +static int client_non_matching(const char *tst_name, unsigned int port, + unsigned int nr_keys, + int current_index, int rnext_index, + const size_t msg_sz, const size_t msg_nr) +{ + unsigned int i; + + if (init_default_key_collection(nr_keys, true)) + test_error("Failed to init the key collection"); + + for (i = 0; i < nr_keys; i++) { + /* key (0, 0) matches */ + collection.keys[i].matches_client = !!((i + 3) % 4); + collection.keys[i].matches_server = !!((i + 2) % 4); + if (kernel_config_has(KCONFIG_NET_VRF)) + collection.keys[i].matches_vrf = !!((i + 1) % 4); + } + + return run_client(tst_name, port, nr_keys, current_index, + rnext_index, NULL, msg_sz, msg_nr); +} + +static void check_current_back(const char *tst_name, unsigned int port, + unsigned int nr_keys, + unsigned int current_index, unsigned int rnext_index, + unsigned int rotate_to_index) +{ + struct tcp_ao_counters tmp; + int sk; + + sk = start_client(tst_name, port, nr_keys, current_index, rnext_index, + &tmp, msg_len, nr_packets); + if (sk < 0) + return; + if (test_set_key(sk, collection.keys[rotate_to_index].client_keyid, -1)) + test_error("Can't change the current key"); + if (test_client_verify(sk, msg_len, nr_packets, TEST_TIMEOUT_SEC)) + test_fail("verify failed"); + collection.keys[rotate_to_index].used_after_accept = 1; + + end_client(tst_name, sk, nr_keys, current_index, rnext_index, &tmp); +} + +static void roll_over_keys(const char *tst_name, unsigned int port, + unsigned int nr_keys, unsigned int rotations, + unsigned int current_index, unsigned int rnext_index) +{ + struct tcp_ao_counters tmp; + unsigned int i; + int sk; + + sk = start_client(tst_name, port, nr_keys, current_index, rnext_index, + &tmp, msg_len, nr_packets); + if (sk < 0) + return; + for (i = rnext_index + 1; rotations > 0; i++, rotations--) { + if (i >= collection.nr_keys) + i = 0; + if (test_set_key(sk, -1, collection.keys[i].server_keyid)) + test_error("Can't change the Rnext key"); + if (test_client_verify(sk, msg_len, nr_packets, TEST_TIMEOUT_SEC)) { + test_fail("verify failed"); + close(sk); + test_tcp_ao_counters_free(&tmp); + return; + } + verify_current_rnext(tst_name, sk, -1, + collection.keys[i].server_keyid); + collection.keys[i].used_on_client = 1; + synchronize_threads(); /* verify current/rnext */ + } + end_client(tst_name, sk, nr_keys, current_index, rnext_index, &tmp); +} + +static void try_client_run(const char *tst_name, unsigned int port, + unsigned int nr_keys, int current_index, int rnext_index) +{ + struct tcp_ao_counters tmp; + int sk; + + sk = start_client(tst_name, port, nr_keys, current_index, rnext_index, + &tmp, msg_len, nr_packets); + if (sk < 0) + return; + end_client(tst_name, sk, nr_keys, current_index, rnext_index, &tmp); +} + +static void try_client_match(const char *tst_name, unsigned int port, + unsigned int nr_keys, + int current_index, int rnext_index) +{ + int sk; + + sk = client_non_matching(tst_name, port, nr_keys, current_index, + rnext_index, msg_len, nr_packets); + if (sk < 0) + return; + try_unmatched_keys(sk, &rnext_index); + end_client(tst_name, sk, nr_keys, current_index, rnext_index, NULL); +} + +static void *server_fn(void *arg) +{ + unsigned int port = test_server_port; + + setup_vrfs(); + try_server_run("server: Check current/rnext keys unset before connect()", + port++, quota, 19, 19); + try_server_run("server: Check current/rnext keys set before connect()", + port++, quota, 10, 10); + try_server_run("server: Check current != rnext keys set before connect()", + port++, quota, 5, 10); + try_server_run("server: Check current flapping back on peer's RnextKey request", + port++, quota * 2, 5, 10); + server_rotations("server: Rotate over all different keys", port++, + quota, 20, 0, 0); + try_server_run("server: Check accept() => established key matching", + port++, quota * 2, 0, 0); + + synchronize_threads(); /* don't race to exit: client exits */ + return NULL; +} + +static void check_established_socket(void) +{ + unsigned int port = test_server_port; + + setup_vrfs(); + try_client_run("client: Check current/rnext keys unset before connect()", + port++, 20, -1, -1); + try_client_run("client: Check current/rnext keys set before connect()", + port++, 20, 10, 10); + try_client_run("client: Check current != rnext keys set before connect()", + port++, 20, 10, 5); + check_current_back("client: Check current flapping back on peer's RnextKey request", + port++, 20, 10, 5, 2); + roll_over_keys("client: Rotate over all different keys", port++, + 20, 20, 0, 0); + try_client_match("client: Check connect() => established key matching", + port++, 20, 0, 0); +} + +static void *client_fn(void *arg) +{ + if (inet_pton(TEST_FAMILY, TEST_WRONG_IP, &wrong_addr) != 1) + test_error("Can't convert ip address %s", TEST_WRONG_IP); + check_closed_socket(); + check_listen_socket(); + check_established_socket(); + return NULL; +} + +int main(int argc, char *argv[]) +{ + test_init(120, server_fn, client_fn); + return 0; +}