[libvirt] [PATCH 11/12] Add a test case for the RPC message APIs

Add a test case which validates the RPC message encoding & decoding to/from XDR representation. Covers the core message header, the error class and streams. * testutils.c, testutils.h: Helper for printing binary differences * virnetmessagetest.c: Validate all XDR encoding/decoding --- tests/.gitignore | 1 + tests/Makefile.am | 8 +- tests/testutils.c | 62 ++++++ tests/testutils.h | 4 + tests/virnetmessagetest.c | 509 +++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 583 insertions(+), 1 deletions(-) create mode 100644 tests/virnetmessagetest.c diff --git a/tests/.gitignore b/tests/.gitignore index e272cf6..7f26dd7 100644 --- a/tests/.gitignore +++ b/tests/.gitignore @@ -31,6 +31,7 @@ statstest storagepoolxml2xmltest storagevolxml2xmltest virbuftest +virnetmessagetest virnetsockettest virshtest vmx2xmltest diff --git a/tests/Makefile.am b/tests/Makefile.am index abf8f30..841993b 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -78,7 +78,7 @@ EXTRA_DIST = \ check_PROGRAMS = virshtest conftest sockettest \ nodeinfotest qparamtest virbuftest \ commandtest commandhelper seclabeltest \ - virnetsockettest ssh + virnetsockettest ssh virnetmessagetest # This is a fake SSH we use from virnetsockettest ssh_SOURCES = ssh.c @@ -165,6 +165,7 @@ TESTS = virshtest \ commandtest \ seclabeltest \ virnetsockettest \ + virnetmessagetest \ $(test_scripts) if WITH_XEN @@ -372,6 +373,11 @@ virnetsockettest_SOURCES = \ virnetsockettest_CFLAGS = -Dabs_builddir="\"$(abs_builddir)\"" virnetsockettest_LDADD = $(LDADDS) +virnetmessagetest_SOURCES = \ + virnetmessagetest.c testutils.h testutils.c +virnetmessagetest_CFLAGS = -Dabs_builddir="\"$(abs_builddir)\"" +virnetmessagetest_LDADD = $(LDADDS) + seclabeltest_SOURCES = \ seclabeltest.c diff --git a/tests/testutils.c b/tests/testutils.c index 9b3cf59..6c304f8 100644 --- a/tests/testutils.c +++ b/tests/testutils.c @@ -374,6 +374,68 @@ int virtTestDifference(FILE *stream, return 0; } +/** + * @param stream: output stream write to differences to + * @param expect: expected output text + * @param actual: actual output text + * + * Display expected and actual output text, trimmed to + * first and last characters at which differences occur + */ +int virtTestDifferenceBin(FILE *stream, + const char *expect, + const char *actual, + size_t length) +{ + size_t start = 0, end = length; + ssize_t i; + + if (!virTestGetDebug()) + return 0; + + if (virTestGetDebug() < 2) { + /* Skip to first character where they differ */ + for (i = 0 ; i < length ; i++) { + if (expect[i] != actual[i]) { + start = i; + break; + } + } + + /* Work backwards to last character where they differ */ + for (i = (length -1) ; i >= 0 ; i--) { + if (expect[i] != actual[i]) { + end = i; + break; + } + } + } + /* Round to nearest boundary of 4 */ + start -= (start % 4); + end += 4 - (end % 4); + + /* Show the trimmed differences */ + fprintf(stream, "\nExpect [ Region %d-%d", (int)start, (int)end); + for (i = start; i < end ; i++) { + if ((i % 4) == 0) + fprintf(stream, "\n "); + fprintf(stream, "0x%02x, ", ((int)expect[i])&0xff); + } + fprintf(stream, "]\n"); + fprintf(stream, "Actual [ Region %d-%d", (int)start, (int)end); + for (i = start; i < end ; i++) { + if ((i % 4) == 0) + fprintf(stream, "\n "); + fprintf(stream, "0x%02x, ", ((int)actual[i])&0xff); + } + fprintf(stream, "]\n"); + + /* Pad to line up with test name ... in virTestRun */ + fprintf(stream, " ... "); + + return 0; +} + #if TEST_OOM static void virtTestErrorFuncQuiet(void *data ATTRIBUTE_UNUSED, diff --git a/tests/testutils.h b/tests/testutils.h index 88603a1..0a7321a 100644 --- a/tests/testutils.h +++ b/tests/testutils.h @@ -36,6 +36,10 @@ int virtTestClearLineRegex(const char *pattern, int virtTestDifference(FILE *stream, const char *expect, const char *actual); +int virtTestDifferenceBin(FILE *stream, + const char *expect, + const char *actual, + size_t length); unsigned int virTestGetDebug(void); unsigned int virTestGetVerbose(void); diff --git a/tests/virnetmessagetest.c b/tests/virnetmessagetest.c new file mode 100644 index 0000000..d70126e --- /dev/null +++ b/tests/virnetmessagetest.c @@ -0,0 +1,509 @@ +/* + * Copyright (C) 2011 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Author: Daniel P. Berrange <berrange(a)redhat.com&gt; + */ + +#include <config.h> + +#include <stdlib.h> +#include <signal.h> + +#include "testutils.h" +#include "util.h" +#include "virterror_internal.h" +#include "memory.h" +#include "logging.h" +#include "ignore-value.h" + +#include "rpc/virnetmessage.h" + +#define VIR_FROM_THIS VIR_FROM_RPC + +static char *argv0; +static char cwd[PATH_MAX]; + +static int testMessageHeaderEncode(const void *args ATTRIBUTE_UNUSED) +{ + virNetMessage msg; + const char expect[] = { + 0x00, 0x00, 0x00, 0x1c, /* Length */ + 0x11, 0x22, 0x33, 0x44, /* Program */ + 0x00, 0x00, 0x00, 0x01, /* Version */ + 0x00, 0x00, 0x06, 0x66, /* Procedure */ + 0x00, 0x00, 0x00, 0x00, /* Type */ + 0x00, 0x00, 0x00, 0x99, /* Serial */ + 0x00, 0x00, 0x00, 0x00, /* Status */ + }; + memset(&msg, 0, sizeof(msg)); + + msg.header.prog = 0x11223344; + msg.header.vers = 0x01; + msg.header.proc = 0x666; + msg.header.type = VIR_NET_CALL; + msg.header.serial = 0x99; + msg.header.status = VIR_NET_OK; + + if (virNetMessageEncodeHeader(&msg) < 0) + return -1; + + if (ARRAY_CARDINALITY(expect) != msg.bufferOffset) { + VIR_DEBUG("Expect message offset %zu got %zu", + sizeof(expect), msg.bufferOffset); + return -1; + } + + if (msg.bufferLength != sizeof(msg.buffer)) { + VIR_DEBUG("Expect message offset %zu got %zu", + sizeof(msg.buffer), msg.bufferLength); + return -1; + } + + if (memcmp(expect, msg.buffer, sizeof(expect)) != 0) { + virtTestDifferenceBin(stderr, expect, msg.buffer, sizeof(expect)); + return -1; + } + + return 0; +} + +static int testMessageHeaderDecode(const void *args ATTRIBUTE_UNUSED) +{ + virNetMessage msg = { + .bufferOffset = 0, + .bufferLength = 0x4, + .buffer = { + 0x00, 0x00, 0x00, 0x1c, /* Length */ + 0x11, 0x22, 0x33, 0x44, /* Program */ + 0x00, 0x00, 0x00, 0x01, /* Version */ + 0x00, 0x00, 0x06, 0x66, /* Procedure */ + 0x00, 0x00, 0x00, 0x01, /* Type */ + 0x00, 0x00, 0x00, 0x99, /* Serial */ + 0x00, 0x00, 0x00, 0x01, /* Status */ + }, + .header = { 0, 0, 0, 0, 0, 0 }, + }; + + msg.header.prog = 0x11223344; + msg.header.vers = 0x01; + msg.header.proc = 0x666; + msg.header.type = VIR_NET_CALL; + msg.header.serial = 0x99; + msg.header.status = VIR_NET_OK; + + if (virNetMessageDecodeLength(&msg) < 0) { + VIR_DEBUG0("Failed to decode message header"); + return -1; + } + + if (msg.bufferOffset != 0x4) { + VIR_DEBUG("Expecting offset %zu got %zu", + (size_t)4, msg.bufferOffset); + return -1; + } + + if (msg.bufferLength != 0x1c) { + VIR_DEBUG("Expecting length %zu got %zu", + (size_t)0x1c, msg.bufferLength); + return -1; + } + + if (virNetMessageDecodeHeader(&msg) < 0) { + VIR_DEBUG0("Failed to decode message header"); + return -1; + } + + if (msg.bufferOffset != msg.bufferLength) { + VIR_DEBUG("Expect message offset %zu got %zu", + msg.bufferOffset, msg.bufferLength); + return -1; + } + + if (msg.header.prog != 0x11223344) { + VIR_DEBUG("Expect prog %d got %d", + 0x11223344, msg.header.prog); + return -1; + } + if (msg.header.vers != 0x1) { + VIR_DEBUG("Expect vers %d got %d", + 0x11223344, msg.header.vers); + return -1; + } + if (msg.header.proc != 0x666) { + VIR_DEBUG("Expect proc %d got %d", + 0x666, msg.header.proc); + return -1; + } + if (msg.header.type != VIR_NET_REPLY) { + VIR_DEBUG("Expect type %d got %d", + VIR_NET_REPLY, msg.header.type); + return -1; + } + if (msg.header.serial != 0x99) { + VIR_DEBUG("Expect serial %d got %d", + 0x99, msg.header.serial); + return -1; + } + if (msg.header.status != VIR_NET_ERROR) { + VIR_DEBUG("Expect status %d got %d", + VIR_NET_ERROR, msg.header.status); + return -1; + } + + return 0; +} + +static int testMessagePayloadEncode(const void *args ATTRIBUTE_UNUSED) +{ + virNetMessage msg; + virNetMessageError err; + const char expect[] = { + 0x00, 0x00, 0x00, 0x74, /* Length */ + 0x11, 0x22, 0x33, 0x44, /* Program */ + 0x00, 0x00, 0x00, 0x01, /* Version */ + 0x00, 0x00, 0x06, 0x66, /* Procedure */ + 0x00, 0x00, 0x00, 0x02, /* Type */ + 0x00, 0x00, 0x00, 0x99, /* Serial */ + 0x00, 0x00, 0x00, 0x01, /* Status */ + + 0x00, 0x00, 0x00, 0x01, /* Error code */ + 0x00, 0x00, 0x00, 0x07, /* Error domain */ + 0x00, 0x00, 0x00, 0x01, /* Error message pointer */ + 0x00, 0x00, 0x00, 0x0b, /* Error message length */ + 'H', 'e', 'l', 'l', /* Error message string */ + 'o', ' ', 'W', 'o', + 'r', 'l', 'd', '\0', + 0x00, 0x00, 0x00, 0x02, /* Error level */ + 0x00, 0x00, 0x00, 0x00, /* Error domain pointer */ + 0x00, 0x00, 0x00, 0x01, /* Error str1 pointer */ + 0x00, 0x00, 0x00, 0x03, /* Error str1 length */ + 'O', 'n', 'e', '\0', /* Error str1 message */ + 0x00, 0x00, 0x00, 0x01, /* Error str2 pointer */ + 0x00, 0x00, 0x00, 0x03, /* Error str2 length */ + 'T', 'w', 'o', '\0', /* Error str2 message */ + 0x00, 0x00, 0x00, 0x01, /* Error str3 pointer */ + 0x00, 0x00, 0x00, 0x05, /* Error str3 length */ + 'T', 'h', 'r', 'e', /* Error str3 message */ + 'e', '\0', '\0', '\0', + 0x00, 0x00, 0x00, 0x01, /* Error int1 */ + 0x00, 0x00, 0x00, 0x02, /* Error int2 */ + 0x00, 0x00, 0x00, 0x00, /* Error network pointer */ + }; + memset(&msg, 0, sizeof(msg)); + memset(&err, 0, sizeof(err)); + + err.code = VIR_ERR_INTERNAL_ERROR; + err.domain = VIR_FROM_RPC; + if (VIR_ALLOC(err.message) < 0) + return -1; + *err.message = strdup("Hello World"); + err.level = VIR_ERR_ERROR; + if (VIR_ALLOC(err.str1) < 0) + return -1; + *err.str1 = strdup("One"); + if (VIR_ALLOC(err.str2) < 0) + return -1; + *err.str2 = strdup("Two"); + if (VIR_ALLOC(err.str3) < 0) + return -1; + *err.str3 = strdup("Three"); + err.int1 = 1; + err.int2 = 2; + + msg.header.prog = 0x11223344; + msg.header.vers = 0x01; + msg.header.proc = 0x666; + msg.header.type = VIR_NET_MESSAGE; + msg.header.serial = 0x99; + msg.header.status = VIR_NET_ERROR; + + if (virNetMessageEncodeHeader(&msg) < 0) + return -1; + + if (virNetMessageEncodePayload(&msg, (xdrproc_t)xdr_virNetMessageError, &err) < 0) + return -1; + + if (ARRAY_CARDINALITY(expect) != msg.bufferLength) { + VIR_DEBUG("Expect message length %zu got %zu", + sizeof(expect), msg.bufferLength); + return -1; + } + + if (msg.bufferOffset != 0) { + VIR_DEBUG("Expect message offset 0 got %zu", + msg.bufferOffset); + return -1; + } + + if (memcmp(expect, msg.buffer, sizeof(expect)) != 0) { + virtTestDifferenceBin(stderr, expect, msg.buffer, sizeof(expect)); + return -1; + } + + return 0; +} + +static int testMessagePayloadDecode(const void *args ATTRIBUTE_UNUSED) +{ + virNetMessageError err; + virNetMessage msg = { + .bufferOffset = 0, + .bufferLength = 0x4, + .buffer = { + 0x00, 0x00, 0x00, 0x74, /* Length */ + 0x11, 0x22, 0x33, 0x44, /* Program */ + 0x00, 0x00, 0x00, 0x01, /* Version */ + 0x00, 0x00, 0x06, 0x66, /* Procedure */ + 0x00, 0x00, 0x00, 0x02, /* Type */ + 0x00, 0x00, 0x00, 0x99, /* Serial */ + 0x00, 0x00, 0x00, 0x01, /* Status */ + + 0x00, 0x00, 0x00, 0x01, /* Error code */ + 0x00, 0x00, 0x00, 0x07, /* Error domain */ + 0x00, 0x00, 0x00, 0x01, /* Error message pointer */ + 0x00, 0x00, 0x00, 0x0b, /* Error message length */ + 'H', 'e', 'l', 'l', /* Error message string */ + 'o', ' ', 'W', 'o', + 'r', 'l', 'd', '\0', + 0x00, 0x00, 0x00, 0x02, /* Error level */ + 0x00, 0x00, 0x00, 0x00, /* Error domain pointer */ + 0x00, 0x00, 0x00, 0x01, /* Error str1 pointer */ + 0x00, 0x00, 0x00, 0x03, /* Error str1 length */ + 'O', 'n', 'e', '\0', /* Error str1 message */ + 0x00, 0x00, 0x00, 0x01, /* Error str2 pointer */ + 0x00, 0x00, 0x00, 0x03, /* Error str2 length */ + 'T', 'w', 'o', '\0', /* Error str2 message */ + 0x00, 0x00, 0x00, 0x01, /* Error str3 pointer */ + 0x00, 0x00, 0x00, 0x05, /* Error str3 length */ + 'T', 'h', 'r', 'e', /* Error str3 message */ + 'e', '\0', '\0', '\0', + 0x00, 0x00, 0x00, 0x01, /* Error int1 */ + 0x00, 0x00, 0x00, 0x02, /* Error int2 */ + 0x00, 0x00, 0x00, 0x00, /* Error network pointer */ + }, + .header = { 0, 0, 0, 0, 0, 0 }, + }; + memset(&err, 0, sizeof(err)); + + if (virNetMessageDecodeLength(&msg) < 0) { + VIR_DEBUG0("Failed to decode message header"); + return -1; + } + + if (msg.bufferOffset != 0x4) { + VIR_DEBUG("Expecting offset %zu got %zu", + (size_t)4, msg.bufferOffset); + return -1; + } + + if (msg.bufferLength != 0x74) { + VIR_DEBUG("Expecting length %zu got %zu", + (size_t)0x74, msg.bufferLength); + return -1; + } + + if (virNetMessageDecodeHeader(&msg) < 0) { + VIR_DEBUG0("Failed to decode message header"); + return -1; + } + + if (msg.bufferOffset != 28) { + VIR_DEBUG("Expect message offset %zu got %zu", + msg.bufferOffset, (size_t)28); + return -1; + } + + if (msg.bufferLength != 0x74) { + VIR_DEBUG("Expecting length %zu got %zu", + (size_t)0x1c, msg.bufferLength); + return -1; + } + + if (virNetMessageDecodePayload(&msg, (xdrproc_t)xdr_virNetMessageError, &err) < 0) { + VIR_DEBUG0("Failed to decode message payload"); + return -1; + } + + if (err.code != VIR_ERR_INTERNAL_ERROR) { + VIR_DEBUG("Expect code %d got %d", + VIR_ERR_INTERNAL_ERROR, err.code); + return -1; + } + + if (err.domain != VIR_FROM_RPC) { + VIR_DEBUG("Expect domain %d got %d", + VIR_ERR_RPC, err.domain); + return -1; + } + + if (err.message == NULL || + STRNEQ(*err.message, "Hello World")) { + VIR_DEBUG("Expect str1 'Hello World' got %s", + err.message ? *err.message : "(null)"); + return -1; + } + + if (err.dom != NULL) { + VIR_DEBUG0("Expect NULL dom"); + return -1; + } + + if (err.level != VIR_ERR_ERROR) { + VIR_DEBUG("Expect leve %d got %d", + VIR_ERR_ERROR, err.level); + return -1; + } + + if (err.str1 == NULL || + STRNEQ(*err.str1, "One")) { + VIR_DEBUG("Expect str1 'One' got %s", + err.str1 ? *err.str1 : "(null)"); + return -1; + } + + if (err.str2 == NULL || + STRNEQ(*err.str2, "Two")) { + VIR_DEBUG("Expect str3 'Two' got %s", + err.str2 ? *err.str2 : "(null)"); + return -1; + } + + if (err.str3 == NULL || + STRNEQ(*err.str3, "Three")) { + VIR_DEBUG("Expect str3 'Three' got %s", + err.str3 ? *err.str3 : "(null)"); + return -1; + } + + if (err.int1 != 1) { + VIR_DEBUG("Expect int1 1 got %d", + err.int1); + return -1; + } + + if (err.int2 != 2) { + VIR_DEBUG("Expect int2 2 got %d", + err.int2); + return -1; + } + + if (err.net != NULL) { + VIR_DEBUG0("Expect NULL network"); + return -1; + } + + xdr_free((xdrproc_t)xdr_virNetMessageError, (void*)&err); + return 0; +} + +static int testMessagePayloadStreamEncode(const void *args ATTRIBUTE_UNUSED) +{ + char stream[] = "The quick brown fox jumps over the lazy dog"; + virNetMessage msg; + const char expect[] = { + 0x00, 0x00, 0x00, 0x47, /* Length */ + 0x11, 0x22, 0x33, 0x44, /* Program */ + 0x00, 0x00, 0x00, 0x01, /* Version */ + 0x00, 0x00, 0x06, 0x66, /* Procedure */ + 0x00, 0x00, 0x00, 0x03, /* Type */ + 0x00, 0x00, 0x00, 0x99, /* Serial */ + 0x00, 0x00, 0x00, 0x02, /* Status */ + + 'T', 'h', 'e', ' ', + 'q', 'u', 'i', 'c', + 'k', ' ', 'b', 'r', + 'o', 'w', 'n', ' ', + 'f', 'o', 'x', ' ', + 'j', 'u', 'm', 'p', + 's', ' ', 'o', 'v', + 'e', 'r', ' ', 't', + 'h', 'e', ' ', 'l', + 'a', 'z', 'y', ' ', + 'd', 'o', 'g', + }; + memset(&msg, 0, sizeof(msg)); + + msg.header.prog = 0x11223344; + msg.header.vers = 0x01; + msg.header.proc = 0x666; + msg.header.type = VIR_NET_STREAM; + msg.header.serial = 0x99; + msg.header.status = VIR_NET_CONTINUE; + + if (virNetMessageEncodeHeader(&msg) < 0) + return -1; + + if (virNetMessageEncodePayloadRaw(&msg, stream, strlen(stream)) < 0) + return -1; + + if (ARRAY_CARDINALITY(expect) != msg.bufferLength) { + VIR_DEBUG("Expect message length %zu got %zu", + sizeof(expect), msg.bufferLength); + return -1; + } + + if (msg.bufferOffset != 0) { + VIR_DEBUG("Expect message offset 0 got %zu", + msg.bufferOffset); + return -1; + } + + if (memcmp(expect, msg.buffer, sizeof(expect)) != 0) { + virtTestDifferenceBin(stderr, expect, msg.buffer, sizeof(expect)); + return -1; + } + + return 0; +} + + +static int +mymain(int argc, char **argv) +{ + int ret = 0; + + argv0 = argv[0]; + + if (argc > 1) { + fprintf(stderr, "Usage: %s\n", argv0); + return (EXIT_FAILURE); + } + + signal(SIGPIPE, SIG_IGN); + + if (!(getcwd(cwd, sizeof(cwd)))) + return (EXIT_FAILURE); + + if (virtTestRun("Message Header Encode", 1, testMessageHeaderEncode, NULL) < 0) + ret = -1; + + if (virtTestRun("Message Header Decode", 1, testMessageHeaderDecode, NULL) < 0) + ret = -1; + + if (virtTestRun("Message Payload Encode", 1, testMessagePayloadEncode, NULL) < 0) + ret = -1; + + if (virtTestRun("Message Payload Decode", 1, testMessagePayloadDecode, NULL) < 0) + ret = -1; + + if (virtTestRun("Message Payload Stream Encode", 1, testMessagePayloadStreamEncode, NULL) < 0) + ret = -1; + + return (ret==0 ? EXIT_SUCCESS : EXIT_FAILURE); +} + +VIRT_TEST_MAIN(mymain) -- 1.7.4