/*** This file is part of systemd Copyright 2014 Ronny Chevalier systemd 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. systemd 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 systemd; If not, see . ***/ #include "basic/alloc-util.h" #include "basic/async.h" #include "basic/fd-util.h" #include "basic/in-addr-util.h" #include "basic/log.h" #include "basic/macro.h" #include "basic/socket-util.h" #include "basic/string-util.h" #include "basic/util.h" static void test_ifname_valid(void) { assert(ifname_valid("foo")); assert(ifname_valid("eth0")); assert(!ifname_valid("0")); assert(!ifname_valid("99")); assert(ifname_valid("a99")); assert(ifname_valid("99a")); assert(!ifname_valid(NULL)); assert(!ifname_valid("")); assert(!ifname_valid(" ")); assert(!ifname_valid(" foo")); assert(!ifname_valid("bar\n")); assert(!ifname_valid(".")); assert(!ifname_valid("..")); assert(ifname_valid("foo.bar")); assert(!ifname_valid("x:y")); assert(ifname_valid("xxxxxxxxxxxxxxx")); assert(!ifname_valid("xxxxxxxxxxxxxxxx")); } static void test_socket_address_parse(void) { SocketAddress a; assert_se(socket_address_parse(&a, "junk") < 0); assert_se(socket_address_parse(&a, "192.168.1.1") < 0); assert_se(socket_address_parse(&a, ".168.1.1") < 0); assert_se(socket_address_parse(&a, "989.168.1.1") < 0); assert_se(socket_address_parse(&a, "192.168.1.1:65536") < 0); assert_se(socket_address_parse(&a, "192.168.1.1:0") < 0); assert_se(socket_address_parse(&a, "0") < 0); assert_se(socket_address_parse(&a, "65536") < 0); assert_se(socket_address_parse(&a, "65535") >= 0); /* The checks below will pass even if ipv6 is disabled in * kernel. The underlying glibc's inet_pton() is just a string * parser and doesn't make any syscalls. */ assert_se(socket_address_parse(&a, "[::1]") < 0); assert_se(socket_address_parse(&a, "[::1]8888") < 0); assert_se(socket_address_parse(&a, "::1") < 0); assert_se(socket_address_parse(&a, "[::1]:0") < 0); assert_se(socket_address_parse(&a, "[::1]:65536") < 0); assert_se(socket_address_parse(&a, "[a:b:1]:8888") < 0); assert_se(socket_address_parse(&a, "8888") >= 0); assert_se(a.sockaddr.sa.sa_family == (socket_ipv6_is_supported() ? AF_INET6 : AF_INET)); assert_se(socket_address_parse(&a, "[2001:0db8:0000:85a3:0000:0000:ac1f:8001]:8888") >= 0); assert_se(a.sockaddr.sa.sa_family == AF_INET6); assert_se(socket_address_parse(&a, "[::1]:8888") >= 0); assert_se(a.sockaddr.sa.sa_family == AF_INET6); assert_se(socket_address_parse(&a, "192.168.1.254:8888") >= 0); assert_se(a.sockaddr.sa.sa_family == AF_INET); assert_se(socket_address_parse(&a, "/foo/bar") >= 0); assert_se(a.sockaddr.sa.sa_family == AF_UNIX); assert_se(socket_address_parse(&a, "@abstract") >= 0); assert_se(a.sockaddr.sa.sa_family == AF_UNIX); } static void test_socket_address_parse_netlink(void) { SocketAddress a; assert_se(socket_address_parse_netlink(&a, "junk") < 0); assert_se(socket_address_parse_netlink(&a, "") < 0); assert_se(socket_address_parse_netlink(&a, "route") >= 0); assert_se(socket_address_parse_netlink(&a, "route 10") >= 0); assert_se(a.sockaddr.sa.sa_family == AF_NETLINK); assert_se(a.protocol == NETLINK_ROUTE); } static void test_socket_address_equal(void) { SocketAddress a; SocketAddress b; assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0); assert_se(socket_address_parse(&b, "192.168.1.1:888") >= 0); assert_se(!socket_address_equal(&a, &b)); assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0); assert_se(socket_address_parse(&b, "192.16.1.1:8888") >= 0); assert_se(!socket_address_equal(&a, &b)); assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0); assert_se(socket_address_parse(&b, "8888") >= 0); assert_se(!socket_address_equal(&a, &b)); assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0); assert_se(socket_address_parse(&b, "/foo/bar/") >= 0); assert_se(!socket_address_equal(&a, &b)); assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0); assert_se(socket_address_parse(&b, "192.168.1.1:8888") >= 0); assert_se(socket_address_equal(&a, &b)); assert_se(socket_address_parse(&a, "/foo/bar") >= 0); assert_se(socket_address_parse(&b, "/foo/bar") >= 0); assert_se(socket_address_equal(&a, &b)); assert_se(socket_address_parse(&a, "[::1]:8888") >= 0); assert_se(socket_address_parse(&b, "[::1]:8888") >= 0); assert_se(socket_address_equal(&a, &b)); assert_se(socket_address_parse(&a, "@abstract") >= 0); assert_se(socket_address_parse(&b, "@abstract") >= 0); assert_se(socket_address_equal(&a, &b)); assert_se(socket_address_parse_netlink(&a, "firewall") >= 0); assert_se(socket_address_parse_netlink(&b, "firewall") >= 0); assert_se(socket_address_equal(&a, &b)); } static void test_socket_address_get_path(void) { SocketAddress a; assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0); assert_se(!socket_address_get_path(&a)); assert_se(socket_address_parse(&a, "@abstract") >= 0); assert_se(!socket_address_get_path(&a)); assert_se(socket_address_parse(&a, "[::1]:8888") >= 0); assert_se(!socket_address_get_path(&a)); assert_se(socket_address_parse(&a, "/foo/bar") >= 0); assert_se(streq(socket_address_get_path(&a), "/foo/bar")); } static void test_socket_address_is(void) { SocketAddress a; assert_se(socket_address_parse(&a, "192.168.1.1:8888") >= 0); assert_se(socket_address_is(&a, "192.168.1.1:8888", SOCK_STREAM)); assert_se(!socket_address_is(&a, "route", SOCK_STREAM)); assert_se(!socket_address_is(&a, "192.168.1.1:8888", SOCK_RAW)); } static void test_socket_address_is_netlink(void) { SocketAddress a; assert_se(socket_address_parse_netlink(&a, "route 10") >= 0); assert_se(socket_address_is_netlink(&a, "route 10")); assert_se(!socket_address_is_netlink(&a, "192.168.1.1:8888")); assert_se(!socket_address_is_netlink(&a, "route 1")); } static void test_in_addr_is_null(void) { union in_addr_union i = {}; assert_se(in_addr_is_null(AF_INET, &i) == true); assert_se(in_addr_is_null(AF_INET6, &i) == true); i.in.s_addr = 0x1000000; assert_se(in_addr_is_null(AF_INET, &i) == false); assert_se(in_addr_is_null(AF_INET6, &i) == false); assert_se(in_addr_is_null(-1, &i) == -EAFNOSUPPORT); } static void test_in_addr_prefix_intersect_one(unsigned f, const char *a, unsigned apl, const char *b, unsigned bpl, int result) { union in_addr_union ua, ub; assert_se(in_addr_from_string(f, a, &ua) >= 0); assert_se(in_addr_from_string(f, b, &ub) >= 0); assert_se(in_addr_prefix_intersect(f, &ua, apl, &ub, bpl) == result); } static void test_in_addr_prefix_intersect(void) { test_in_addr_prefix_intersect_one(AF_INET, "255.255.255.255", 32, "255.255.255.254", 32, 0); test_in_addr_prefix_intersect_one(AF_INET, "255.255.255.255", 0, "255.255.255.255", 32, 1); test_in_addr_prefix_intersect_one(AF_INET, "0.0.0.0", 0, "47.11.8.15", 32, 1); test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.1", 24, 1); test_in_addr_prefix_intersect_one(AF_INET, "2.2.2.2", 24, "1.1.1.1", 24, 0); test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.127", 25, 1); test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.127", 26, 1); test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 25, "1.1.1.127", 25, 1); test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 25, "1.1.1.255", 25, 0); test_in_addr_prefix_intersect_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe", 128, 0); test_in_addr_prefix_intersect_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 0, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, 1); test_in_addr_prefix_intersect_one(AF_INET6, "::", 0, "beef:beef:beef:beef:beef:beef:beef:beef", 128, 1); test_in_addr_prefix_intersect_one(AF_INET6, "1::2", 64, "1::2", 64, 1); test_in_addr_prefix_intersect_one(AF_INET6, "2::2", 64, "1::2", 64, 0); test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 120, "1::007f", 121, 1); test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 120, "1::007f", 122, 1); test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 121, "1::007f", 121, 1); test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 121, "1::00ff", 121, 0); } static void test_in_addr_prefix_next_one(unsigned f, const char *before, unsigned pl, const char *after) { union in_addr_union ubefore, uafter, t; assert_se(in_addr_from_string(f, before, &ubefore) >= 0); t = ubefore; assert_se((in_addr_prefix_next(f, &t, pl) > 0) == !!after); if (after) { assert_se(in_addr_from_string(f, after, &uafter) >= 0); assert_se(in_addr_equal(f, &t, &uafter) > 0); } } static void test_in_addr_prefix_next(void) { test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 24, "192.168.1.0"); test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 16, "192.169.0.0"); test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 20, "192.168.16.0"); test_in_addr_prefix_next_one(AF_INET, "0.0.0.0", 32, "0.0.0.1"); test_in_addr_prefix_next_one(AF_INET, "255.255.255.255", 32, NULL); test_in_addr_prefix_next_one(AF_INET, "255.255.255.0", 24, NULL); test_in_addr_prefix_next_one(AF_INET6, "4400::", 128, "4400::0001"); test_in_addr_prefix_next_one(AF_INET6, "4400::", 120, "4400::0100"); test_in_addr_prefix_next_one(AF_INET6, "4400::", 127, "4400::0002"); test_in_addr_prefix_next_one(AF_INET6, "4400::", 8, "4500::"); test_in_addr_prefix_next_one(AF_INET6, "4400::", 7, "4600::"); test_in_addr_prefix_next_one(AF_INET6, "::", 128, "::1"); test_in_addr_prefix_next_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, NULL); test_in_addr_prefix_next_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00", 120, NULL); } static void test_in_addr_to_string_one(int f, const char *addr) { union in_addr_union ua; _cleanup_free_ char *r = NULL; assert_se(in_addr_from_string(f, addr, &ua) >= 0); assert_se(in_addr_to_string(f, &ua, &r) >= 0); printf("test_in_addr_to_string_one: %s == %s\n", addr, r); assert_se(streq(addr, r)); } static void test_in_addr_to_string(void) { test_in_addr_to_string_one(AF_INET, "192.168.0.1"); test_in_addr_to_string_one(AF_INET, "10.11.12.13"); test_in_addr_to_string_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); test_in_addr_to_string_one(AF_INET6, "::1"); test_in_addr_to_string_one(AF_INET6, "fe80::"); } static void test_in_addr_ifindex_to_string_one(int f, const char *a, int ifindex, const char *b) { _cleanup_free_ char *r = NULL; union in_addr_union ua, uuaa; int ff, ifindex2; assert_se(in_addr_from_string(f, a, &ua) >= 0); assert_se(in_addr_ifindex_to_string(f, &ua, ifindex, &r) >= 0); printf("test_in_addr_ifindex_to_string_one: %s == %s\n", b, r); assert_se(streq(b, r)); assert_se(in_addr_ifindex_from_string_auto(b, &ff, &uuaa, &ifindex2) >= 0); assert_se(ff == f); assert_se(in_addr_equal(f, &ua, &uuaa)); assert_se(ifindex2 == ifindex || ifindex2 == 0); } static void test_in_addr_ifindex_to_string(void) { test_in_addr_ifindex_to_string_one(AF_INET, "192.168.0.1", 7, "192.168.0.1"); test_in_addr_ifindex_to_string_one(AF_INET, "10.11.12.13", 9, "10.11.12.13"); test_in_addr_ifindex_to_string_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 10, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); test_in_addr_ifindex_to_string_one(AF_INET6, "::1", 11, "::1"); test_in_addr_ifindex_to_string_one(AF_INET6, "fe80::", 12, "fe80::%12"); test_in_addr_ifindex_to_string_one(AF_INET6, "fe80::", 0, "fe80::"); test_in_addr_ifindex_to_string_one(AF_INET6, "fe80::14", 12, "fe80::14%12"); test_in_addr_ifindex_to_string_one(AF_INET6, "fe80::15", -7, "fe80::15"); test_in_addr_ifindex_to_string_one(AF_INET6, "fe80::16", LOOPBACK_IFINDEX, "fe80::16%1"); } static void test_in_addr_ifindex_from_string_auto(void) { int family, ifindex; union in_addr_union ua; /* Most in_addr_ifindex_from_string_auto() invocations have already been tested above, but let's test some more */ assert_se(in_addr_ifindex_from_string_auto("fe80::17", &family, &ua, &ifindex) >= 0); assert_se(family == AF_INET6); assert_se(ifindex == 0); assert_se(in_addr_ifindex_from_string_auto("fe80::18%19", &family, &ua, &ifindex) >= 0); assert_se(family == AF_INET6); assert_se(ifindex == 19); assert_se(in_addr_ifindex_from_string_auto("fe80::18%lo", &family, &ua, &ifindex) >= 0); assert_se(family == AF_INET6); assert_se(ifindex == LOOPBACK_IFINDEX); assert_se(in_addr_ifindex_from_string_auto("fe80::19%thisinterfacecantexist", &family, &ua, &ifindex) == -ENODEV); } static void *connect_thread(void *arg) { union sockaddr_union *sa = arg; _cleanup_close_ int fd = -1; fd = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0); assert_se(fd >= 0); assert_se(connect(fd, &sa->sa, sizeof(sa->in)) == 0); return NULL; } static void test_nameinfo_pretty(void) { _cleanup_free_ char *stdin_name = NULL, *localhost = NULL; union sockaddr_union s = { .in.sin_family = AF_INET, .in.sin_port = 0, .in.sin_addr.s_addr = htobe32(INADDR_ANY), }; int r; union sockaddr_union c = {}; socklen_t slen = sizeof(c.in), clen = sizeof(c.in); _cleanup_close_ int sfd = -1, cfd = -1; r = getnameinfo_pretty(STDIN_FILENO, &stdin_name); log_info_errno(r, "No connection remote: %m"); assert_se(r < 0); sfd = socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, 0); assert_se(sfd >= 0); assert_se(bind(sfd, &s.sa, sizeof(s.in)) == 0); /* find out the port number */ assert_se(getsockname(sfd, &s.sa, &slen) == 0); assert_se(listen(sfd, 1) == 0); assert_se(asynchronous_job(connect_thread, &s) == 0); log_debug("Accepting new connection on fd:%d", sfd); cfd = accept4(sfd, &c.sa, &clen, SOCK_CLOEXEC); assert_se(cfd >= 0); r = getnameinfo_pretty(cfd, &localhost); log_info("Connection from %s", localhost); assert_se(r == 0); } static void test_sockaddr_equal(void) { union sockaddr_union a = { .in.sin_family = AF_INET, .in.sin_port = 0, .in.sin_addr.s_addr = htobe32(INADDR_ANY), }; union sockaddr_union b = { .in.sin_family = AF_INET, .in.sin_port = 0, .in.sin_addr.s_addr = htobe32(INADDR_ANY), }; union sockaddr_union c = { .in.sin_family = AF_INET, .in.sin_port = 0, .in.sin_addr.s_addr = htobe32(1234), }; union sockaddr_union d = { .in6.sin6_family = AF_INET6, .in6.sin6_port = 0, .in6.sin6_addr = IN6ADDR_ANY_INIT, }; assert_se(sockaddr_equal(&a, &a)); assert_se(sockaddr_equal(&a, &b)); assert_se(sockaddr_equal(&d, &d)); assert_se(!sockaddr_equal(&a, &c)); assert_se(!sockaddr_equal(&b, &c)); } static void test_sockaddr_un_len(void) { static const struct sockaddr_un fs = { .sun_family = AF_UNIX, .sun_path = "/foo/bar/waldo", }; static const struct sockaddr_un abstract = { .sun_family = AF_UNIX, .sun_path = "\0foobar", }; assert_se(SOCKADDR_UN_LEN(fs) == offsetof(struct sockaddr_un, sun_path) + strlen(fs.sun_path)); assert_se(SOCKADDR_UN_LEN(abstract) == offsetof(struct sockaddr_un, sun_path) + 1 + strlen(abstract.sun_path + 1)); } int main(int argc, char *argv[]) { log_set_max_level(LOG_DEBUG); test_ifname_valid(); test_socket_address_parse(); test_socket_address_parse_netlink(); test_socket_address_equal(); test_socket_address_get_path(); test_socket_address_is(); test_socket_address_is_netlink(); test_in_addr_is_null(); test_in_addr_prefix_intersect(); test_in_addr_prefix_next(); test_in_addr_to_string(); test_in_addr_ifindex_to_string(); test_in_addr_ifindex_from_string_auto(); test_nameinfo_pretty(); test_sockaddr_equal(); test_sockaddr_un_len(); return 0; }