From 9b589ffb1237ec54f8341d8a80ba77f31d428842 Mon Sep 17 00:00:00 2001 From: "Daniel P. Berrange" Date: Fri, 22 Dec 2017 11:45:24 +0000 Subject: [PATCH] sockets: pull code for testing IP availability out of specific test MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The test-io-channel-socket.c file has some useful helper functions for checking if a specific IP protocol is available. Other tests need to perform similar kinds of checks to avoid running tests that will fail due to missing IP protocols. Reviewed-by: Eric Blake Reviewed-by: Marc-André Lureau Signed-off-by: Daniel P. Berrange --- tests/Makefile.include | 2 +- tests/socket-helpers.c | 100 +++++++++++++++++++++++++++++++++++++++++ tests/socket-helpers.h | 42 +++++++++++++++++ tests/test-io-channel-socket.c | 72 +---------------------------- 4 files changed, 145 insertions(+), 71 deletions(-) create mode 100644 tests/socket-helpers.c create mode 100644 tests/socket-helpers.h diff --git a/tests/Makefile.include b/tests/Makefile.include index ef9b88c369..3d5b6174a8 100644 --- a/tests/Makefile.include +++ b/tests/Makefile.include @@ -715,7 +715,7 @@ tests/test-crypto-tlssession$(EXESUF): tests/test-crypto-tlssession.o \ tests/crypto-tls-x509-helpers.o tests/pkix_asn1_tab.o $(test-crypto-obj-y) tests/test-io-task$(EXESUF): tests/test-io-task.o $(test-io-obj-y) tests/test-io-channel-socket$(EXESUF): tests/test-io-channel-socket.o \ - tests/io-channel-helpers.o $(test-io-obj-y) + tests/io-channel-helpers.o tests/socket-helpers.o $(test-io-obj-y) tests/tpm-crb-test$(EXESUF): tests/tpm-crb-test.o tests/tpm-emu.o $(test-io-obj-y) tests/tpm-tis-test$(EXESUF): tests/tpm-tis-test.o tests/tpm-emu.o $(test-io-obj-y) tests/test-io-channel-file$(EXESUF): tests/test-io-channel-file.o \ diff --git a/tests/socket-helpers.c b/tests/socket-helpers.c new file mode 100644 index 0000000000..6f4bf07aa9 --- /dev/null +++ b/tests/socket-helpers.c @@ -0,0 +1,100 @@ +/* + * Helper functions for tests using sockets + * + * Copyright 2015-2018 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 or + * (at your option) version 3 of the License. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + * + */ + +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "qemu/sockets.h" +#include "socket-helpers.h" + +#ifndef AI_ADDRCONFIG +# define AI_ADDRCONFIG 0 +#endif +#ifndef EAI_ADDRFAMILY +# define EAI_ADDRFAMILY 0 +#endif + +int socket_can_bind(const char *hostname) +{ + int fd = -1; + struct addrinfo ai, *res = NULL; + int rc; + int ret = -1; + + memset(&ai, 0, sizeof(ai)); + ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; + ai.ai_family = AF_UNSPEC; + ai.ai_socktype = SOCK_STREAM; + + /* lookup */ + rc = getaddrinfo(hostname, NULL, &ai, &res); + if (rc != 0) { + if (rc == EAI_ADDRFAMILY || + rc == EAI_FAMILY) { + errno = EADDRNOTAVAIL; + } else { + errno = EINVAL; + } + goto cleanup; + } + + fd = qemu_socket(res->ai_family, res->ai_socktype, res->ai_protocol); + if (fd < 0) { + goto cleanup; + } + + if (bind(fd, res->ai_addr, res->ai_addrlen) < 0) { + goto cleanup; + } + + ret = 0; + + cleanup: + if (fd != -1) { + close(fd); + } + if (res) { + freeaddrinfo(res); + } + return ret; +} + + +int socket_check_protocol_support(bool *has_ipv4, bool *has_ipv6) +{ + *has_ipv4 = *has_ipv6 = false; + + if (socket_can_bind("127.0.0.1") < 0) { + if (errno != EADDRNOTAVAIL) { + return -1; + } + } else { + *has_ipv4 = true; + } + + if (socket_can_bind("::1") < 0) { + if (errno != EADDRNOTAVAIL) { + return -1; + } + } else { + *has_ipv6 = true; + } + + return 0; +} diff --git a/tests/socket-helpers.h b/tests/socket-helpers.h new file mode 100644 index 0000000000..efa96eddc2 --- /dev/null +++ b/tests/socket-helpers.h @@ -0,0 +1,42 @@ +/* + * Helper functions for tests using sockets + * + * Copyright 2015-2018 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 or + * (at your option) version 3 of the License. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + * + */ + +/* + * @hostname: a DNS name or numeric IP address + * + * Check whether it is possible to bind to ports + * on the DNS name or IP address @hostname. If an IP address + * is used, it must not be a wildcard address. + * + * Returns 0 on success, -1 on error with errno set + */ +int socket_can_bind(const char *hostname); + +/* + * @has_ipv4: set to true on return if IPv4 is available + * @has_ipv6: set to true on return if IPv6 is available + * + * Check whether IPv4 and/or IPv6 are available for use. + * On success, @has_ipv4 and @has_ipv6 will be set to + * indicate whether the respective protocols are available. + * + * Returns 0 on success, -1 on fatal error + */ +int socket_check_protocol_support(bool *has_ipv4, bool *has_ipv6); diff --git a/tests/test-io-channel-socket.c b/tests/test-io-channel-socket.c index b273fd3ba2..0597213f93 100644 --- a/tests/test-io-channel-socket.c +++ b/tests/test-io-channel-socket.c @@ -22,77 +22,9 @@ #include "io/channel-socket.h" #include "io/channel-util.h" #include "io-channel-helpers.h" +#include "socket-helpers.h" #include "qapi/error.h" -#ifndef AI_ADDRCONFIG -# define AI_ADDRCONFIG 0 -#endif -#ifndef EAI_ADDRFAMILY -# define EAI_ADDRFAMILY 0 -#endif - -static int check_bind(const char *hostname, bool *has_proto) -{ - int fd = -1; - struct addrinfo ai, *res = NULL; - int rc; - int ret = -1; - - memset(&ai, 0, sizeof(ai)); - ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; - ai.ai_family = AF_UNSPEC; - ai.ai_socktype = SOCK_STREAM; - - /* lookup */ - rc = getaddrinfo(hostname, NULL, &ai, &res); - if (rc != 0) { - if (rc == EAI_ADDRFAMILY || - rc == EAI_FAMILY) { - *has_proto = false; - goto done; - } - goto cleanup; - } - - fd = qemu_socket(res->ai_family, res->ai_socktype, res->ai_protocol); - if (fd < 0) { - goto cleanup; - } - - if (bind(fd, res->ai_addr, res->ai_addrlen) < 0) { - if (errno == EADDRNOTAVAIL) { - *has_proto = false; - goto done; - } - goto cleanup; - } - - *has_proto = true; - done: - ret = 0; - - cleanup: - if (fd != -1) { - close(fd); - } - if (res) { - freeaddrinfo(res); - } - return ret; -} - -static int check_protocol_support(bool *has_ipv4, bool *has_ipv6) -{ - if (check_bind("127.0.0.1", has_ipv4) < 0) { - return -1; - } - if (check_bind("::1", has_ipv6) < 0) { - return -1; - } - - return 0; -} - static void test_io_channel_set_socket_bufs(QIOChannel *src, QIOChannel *dst) @@ -566,7 +498,7 @@ int main(int argc, char **argv) * each protocol to avoid breaking tests on machines * with either IPv4 or IPv6 disabled. */ - if (check_protocol_support(&has_ipv4, &has_ipv6) < 0) { + if (socket_check_protocol_support(&has_ipv4, &has_ipv6) < 0) { return 1; } -- 2.11.4.GIT