/* * Copyright (C) 2016 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, see * . * * Author: Michal Privoznik */ #include #include "testutils.h" #ifdef NSS # include # include # include "libvirt_nss.h" # include "virsocketaddr.h" # define VIR_FROM_THIS VIR_FROM_NONE # define BUF_SIZE 1024 struct testNSSData { const char *hostname; const char *const *ipAddr; int af; }; static int testGetHostByName(const void *opaque) { const struct testNSSData *data = opaque; const bool existent = data->hostname && data->ipAddr && data->ipAddr[0]; int ret = -1; struct hostent resolved; char buf[BUF_SIZE] = { 0 }; char **addrList; int rv, tmp_errno = 0, tmp_herrno = 0; size_t i = 0, j = 0; memset(&resolved, 0, sizeof(resolved)); rv = NSS_NAME(gethostbyname2)(data->hostname, data->af, &resolved, buf, sizeof(buf), &tmp_errno, &tmp_herrno); if (rv == NSS_STATUS_TRYAGAIN || rv == NSS_STATUS_UNAVAIL || rv == NSS_STATUS_RETURN) { /* Resolving failed in unexpected fashion. */ virReportError(VIR_ERR_INTERNAL_ERROR, "Resolving of %s failed due to internal error", data->hostname); goto cleanup; } else if (rv == NSS_STATUS_NOTFOUND) { /* Resolving failed. Should it? */ if (!existent) ret = 0; else virReportError(VIR_ERR_INTERNAL_ERROR, "Resolving of %s failed", data->hostname); goto cleanup; } /* Resolving succeeded. Should it? */ if (!existent) { virReportError(VIR_ERR_INTERNAL_ERROR, "Resolving of %s succeeded but was expected to fail", data->hostname); goto cleanup; } /* Now lets see if resolved address match our expectations. */ if (!resolved.h_name) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", "resolved.h_name empty"); goto cleanup; } if (data->af != AF_UNSPEC && resolved.h_addrtype != data->af) { virReportError(VIR_ERR_INTERNAL_ERROR, "Expected AF_INET (%d) got %d", data->af, resolved.h_addrtype); goto cleanup; } if ((resolved.h_addrtype == AF_INET && resolved.h_length != 4) || (resolved.h_addrtype == AF_INET6 && resolved.h_length != 16)) { /* IPv4 addresses are encoded into 4 bytes */ virReportError(VIR_ERR_INTERNAL_ERROR, "Expected %d bytes long address, got %d", resolved.h_addrtype == AF_INET ? 4 : 16, resolved.h_length); goto cleanup; } if (!resolved.h_addr_list) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", "resolved.h_addr_list empty"); goto cleanup; } addrList = resolved.h_addr_list; while (*addrList) { virSocketAddr sa; char *ipAddr; void *address = *addrList; memset(&sa, 0, sizeof(sa)); if (resolved.h_addrtype == AF_INET) { virSocketAddrSetIPv4AddrNetOrder(&sa, *((uint32_t *) address)); } else { virSocketAddrSetIPv6AddrNetOrder(&sa, address); } if (!(ipAddr = virSocketAddrFormat(&sa))) { /* error reported by helper */ goto cleanup; } for (j = 0; data->ipAddr[j]; j++) { if (STREQ(data->ipAddr[j], ipAddr)) break; } if (!data->ipAddr[j]) { virReportError(VIR_ERR_INTERNAL_ERROR, "Unexpected address %s", ipAddr); VIR_FREE(ipAddr); goto cleanup; } VIR_FREE(ipAddr); addrList++; i++; } for (j = 0; data->ipAddr[j]; j++) ; if (i != j) { virReportError(VIR_ERR_INTERNAL_ERROR, "Expected %zu addresses, got %zu", j, i); goto cleanup; } ret = 0; cleanup: return ret; } static int mymain(void) { int ret = 0; # define DO_TEST(name, family, ...) \ do { \ const char *addr[] = { __VA_ARGS__, NULL}; \ struct testNSSData data = { \ .hostname = name, .ipAddr = addr, .af = family, \ }; \ if (virTestRun(name, testGetHostByName, &data) < 0) \ ret = -1; \ } while (0) DO_TEST("fedora", AF_INET, "192.168.122.197", "192.168.122.198", "192.168.122.199"); DO_TEST("gentoo", AF_INET, "192.168.122.254"); DO_TEST("gentoo", AF_INET6, "2001:1234:dead:beef::2"); DO_TEST("gentoo", AF_UNSPEC, "192.168.122.254"); DO_TEST("non-existent", AF_UNSPEC, NULL); return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; } VIRT_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/nssmock.so") #else int main(void) { return EXIT_AM_SKIP; } #endif