tests/virnetdevtest.c

   1 /*
   2  * Copyright (C) 2015 Red Hat, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library.  If not, see
  16  * <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include <config.h>
  20
  21 #include "internal.h"
  22 #include "testutils.h"
  23
  24 #define LIBVIRT_VIRNETDEVPRIV_H_ALLOW
  25
  26 #ifdef __linux__
  27
  28 # include "virmock.h"
  29 # include "virnetdevpriv.h"
  30
  31 # define VIR_FROM_THIS VIR_FROM_NONE
  32
  33 struct testVirNetDevGetLinkInfoData {
  34     const char *ifname;         /* ifname to get info on */
  35     virNetDevIfState state;     /* expected state */
  36     unsigned int speed;         /* expected speed */
  37 };
  38
  39 static int
  40 testVirNetDevGetLinkInfo(const void *opaque)
  41 {
  42     const struct testVirNetDevGetLinkInfoData *data = opaque;
  43     virNetDevIfLink lnk;
  44
  45     if (virNetDevGetLinkInfo(data->ifname, &lnk) < 0)
  46         return -1;
  47
  48     if (lnk.state != data->state) {
  49         fprintf(stderr,
  50                 "Fetched link state (%s) doesn't match the expected one (%s)",
  51                 virNetDevIfStateTypeToString(lnk.state),
  52                 virNetDevIfStateTypeToString(data->state));
  53         return -1;
  54     }
  55
  56     if (lnk.speed != data->speed) {
  57         fprintf(stderr,
  58                 "Fetched link speed (%u) doesn't match the expected one (%u)",
  59                 lnk.speed, data->speed);
  60         return -1;
  61     }
  62
  63     return 0;
  64 }
  65
  66 # if defined(WITH_LIBNL)
  67
  68 int
  69 (*real_virNetDevSendVfSetLinkRequest)(const char *ifname,
  70                                       int vfInfoType,
  71                                       const void *payload,
  72                                       const size_t payloadLen);
  73
  74 int
  75 (*real_virNetDevSetVfMac)(const char *ifname,
  76                           int vf,
  77                           const virMacAddr *macaddr,
  78                           bool *allowRetry);
  79
  80 int
  81 (*real_virNetDevSetVfVlan)(const char *ifname,
  82                            int vf,
  83                            const int *vlanid);
  84
  85 static void
  86 init_syms(void)
  87 {
  88     VIR_MOCK_REAL_INIT(virNetDevSendVfSetLinkRequest);
  89     VIR_MOCK_REAL_INIT(virNetDevSetVfMac);
  90     VIR_MOCK_REAL_INIT(virNetDevSetVfVlan);
  91 }
  92
  93 int
  94 virNetDevSetVfMac(const char *ifname,
  95                   int vf,
  96                   const virMacAddr *macaddr,
  97                   bool *allowRetry)
  98 {
  99     init_syms();
 100
 101     if (STREQ_NULLABLE(ifname, "fakeiface-macerror")) {
 102         return -EBUSY;
 103     } else if (STREQ_NULLABLE(ifname, "fakeiface-altmacerror")) {
 104         return -EINVAL;
 105     } else if (STREQ_NULLABLE(ifname, "fakeiface-macerror-novlanerror")) {
 106         return -EAGAIN;
 107     } else if (STREQ_NULLABLE(ifname, "fakeiface-macerror-vlanerror")) {
 108         return -ENODEV;
 109     } else if (STREQ_NULLABLE(ifname, "fakeiface-nomacerror-vlanerror")) {
 110         return 0;
 111     } else if (STREQ_NULLABLE(ifname, "fakeiface-nomacerror-novlanerror")) {
 112         return 0;
 113     }
 114     return real_virNetDevSetVfMac(ifname, vf, macaddr, allowRetry);
 115 }
 116
 117 int
 118 virNetDevSetVfVlan(const char *ifname,
 119                    int vf,
 120                    const int *vlanid)
 121 {
 122     init_syms();
 123
 124     if (STREQ_NULLABLE(ifname, "fakeiface-macerror-vlanerror")) {
 125         return -EPERM;
 126     } else if (STREQ_NULLABLE(ifname, "fakeiface-nomacerror-vlanerror")) {
 127         return -EPERM;
 128     } else if (STREQ_NULLABLE(ifname, "fakeiface-macerror-novlanerror")) {
 129         return 0;
 130     } else if (STREQ_NULLABLE(ifname, "fakeiface-nomacerror-novlanerror")) {
 131         return 0;
 132     }
 133     return real_virNetDevSetVfVlan(ifname, vf, vlanid);
 134 }
 135
 136 int
 137 virNetDevSendVfSetLinkRequest(const char *ifname,
 138                               int vfInfoType,
 139                               const void *payload,
 140                               const size_t payloadLen)
 141 {
 142     init_syms();
 143
 144     if (STREQ_NULLABLE(ifname, "fakeiface-eperm")) {
 145         return -EPERM;
 146     } else if (STREQ_NULLABLE(ifname, "fakeiface-eagain")) {
 147         return -EAGAIN;
 148     } else if (STREQ_NULLABLE(ifname, "fakeiface-einval")) {
 149         return -EINVAL;
 150     } else if (STREQ_NULLABLE(ifname, "fakeiface-ok")) {
 151         return 0;
 152     }
 153     return real_virNetDevSendVfSetLinkRequest(ifname, vfInfoType, payload, payloadLen);
 154 }
 155
 156 static int
 157 testVirNetDevSetVfMac(const void *opaque G_GNUC_UNUSED)
 158 {
 159     struct testCase {
 160         const char *ifname;
 161         const int vf_num;
 162         const virMacAddr macaddr;
 163         bool allow_retry;
 164         const int rc;
 165     };
 166     size_t i = 0;
 167     int rc = 0;
 168     struct testCase testCases[] = {
 169         { .ifname = "fakeiface-ok", .vf_num = 1,
 170           .macaddr = { .addr = { 0, 0, 0, 0, 0, 0 } }, .allow_retry = false, .rc = 0 },
 171         { .ifname = "fakeiface-ok", .vf_num = 2,
 172           .macaddr = { .addr = { 0, 0, 0, 7, 7, 7 } }, .allow_retry = false, .rc = 0 },
 173         { .ifname = "fakeiface-ok", .vf_num = 3,
 174           .macaddr = { .addr = { 0, 0, 0, 0, 0, 0 } }, .allow_retry = true, .rc = 0 },
 175         { .ifname = "fakeiface-ok", .vf_num = 4,
 176           .macaddr = { .addr = { 0, 0, 0, 7, 7, 7 } }, .allow_retry = true, .rc = 0 },
 177         { .ifname = "fakeiface-eperm", .vf_num = 5,
 178           .macaddr = { .addr = { 0, 0, 0, 0, 0, 0 } }, .allow_retry = false, .rc = -EPERM },
 179         { .ifname = "fakeiface-einval", .vf_num = 6,
 180           .macaddr = { .addr = { 0, 0, 0, 0, 0, 0 } }, .allow_retry = false, .rc = -EINVAL },
 181         { .ifname = "fakeiface-einval", .vf_num = 7,
 182           .macaddr = { .addr = { 0, 0, 0, 0, 0, 0 } }, .allow_retry = true, .rc = -EINVAL },
 183         { .ifname = "fakeiface-einval", .vf_num = 8,
 184           .macaddr = { .addr = { 0, 0, 0, 7, 7, 7 } }, .allow_retry = false, .rc = -EINVAL },
 185         { .ifname = "fakeiface-einval", .vf_num = 9,
 186           .macaddr = { .addr = { 0, 0, 0, 7, 7, 7 } }, .allow_retry = true, .rc = -EINVAL },
 187     };
 188
 189     for (i = 0; i < G_N_ELEMENTS(testCases); ++i) {
 190        rc = virNetDevSetVfMac(testCases[i].ifname, testCases[i].vf_num,
 191                               &testCases[i].macaddr, &testCases[i].allow_retry);
 192        if (rc != testCases[i].rc) {
 193            return -1;
 194        }
 195     }
 196     return 0;
 197 }
 198
 199 static int
 200 testVirNetDevSetVfMissingMac(const void *opaque G_GNUC_UNUSED)
 201 {
 202     bool allowRetry = false;
 203     /* NULL MAC pointer. */
 204     if (virNetDevSetVfMac("fakeiface-ok", 1, NULL, &allowRetry) != -EINVAL) {
 205         return -1;
 206     }
 207     allowRetry = true;
 208     if (virNetDevSetVfMac("fakeiface-ok", 1, NULL, &allowRetry) != -EINVAL) {
 209         return -1;
 210     }
 211     return 0;
 212 }
 213
 214 static int
 215 testVirNetDevSetVfVlan(const void *opaque G_GNUC_UNUSED)
 216 {
 217     struct testCase {
 218         const char *ifname;
 219         const int vf_num;
 220         const int vlan_id;
 221         const int rc;
 222     };
 223     struct nullVlanTestCase {
 224         const char *ifname;
 225         const int vf_num;
 226         const int rc;
 227     };
 228     size_t i = 0;
 229     int rc = 0;
 230     const struct testCase testCases[] = {
 231         /* VLAN ID is out of range of valid values (0-4095). */
 232         { .ifname = "enxdeadbeefcafe", .vf_num = 1, .vlan_id = 4096, .rc = -ERANGE },
 233         { .ifname = "enxdeadbeefcafe", .vf_num = 1, .vlan_id = -1, .rc = -ERANGE },
 234         { .ifname = "fakeiface-eperm", .vf_num = 1, .vlan_id = 0, .rc = -EPERM },
 235         { .ifname = "fakeiface-eagain", .vf_num = 1, .vlan_id = 0, .rc = -EAGAIN },
 236         /* Successful requests with vlan id 0 need to have a zero return code. */
 237         { .ifname = "fakeiface-ok", .vf_num = 1, .vlan_id = 0, .rc = 0 },
 238         /* Requests with a non-zero VLAN ID that result in an EPERM need to result in failures.
 239          * failures. */
 240         { .ifname = "fakeiface-eperm", .vf_num = 1, .vlan_id = 42, .rc = -EPERM },
 241         /* Requests with a non-zero VLAN ID that result in some other errors need to result in
 242          * failures. */
 243         { .ifname = "fakeiface-eagain", .vf_num = 1, .vlan_id = 42, .rc = -EAGAIN },
 244         /* Successful requests with a non-zero VLAN ID */
 245         { .ifname = "fakeiface-ok", .vf_num = 1, .vlan_id = 42, .rc = 0 },
 246     };
 247
 248     const struct nullVlanTestCase nullVLANTestCases[] = {
 249         { .ifname = "fakeiface-eperm", .vf_num = 1, .rc = 0 },
 250         { .ifname = "fakeiface-eagain", .vf_num = 1, .rc = -EAGAIN },
 251         /* Successful requests with vlan id 0 need to have a zero return code. */
 252         { .ifname = "fakeiface-ok", .vf_num = 1, .rc = 0 },
 253     };
 254
 255     for (i = 0; i < G_N_ELEMENTS(testCases); ++i) {
 256        rc = virNetDevSetVfVlan(testCases[i].ifname, testCases[i].vf_num, &testCases[i].vlan_id);
 257        if (rc != testCases[i].rc) {
 258            return -1;
 259        }
 260     }
 261
 262     for (i = 0; i < G_N_ELEMENTS(nullVLANTestCases); ++i) {
 263        rc = virNetDevSetVfVlan(nullVLANTestCases[i].ifname, nullVLANTestCases[i].vf_num, NULL);
 264        if (rc != nullVLANTestCases[i].rc) {
 265            return -1;
 266        }
 267     }
 268
 269     return 0;
 270 }
 271
 272 static int
 273 testVirNetDevSetVfConfig(const void *opaque G_GNUC_UNUSED)
 274 {
 275     struct testCase {
 276         const char *ifname;
 277         const int rc;
 278     };
 279     int rc = 0;
 280     size_t i = 0;
 281     /* Nested functions are mocked so dummy values are used. */
 282     const virMacAddr mac = { .addr = { 0xDE, 0xAD, 0xBE, 0xEF, 0xCA, 0xFE }};
 283     const int vfNum = 1;
 284     const int vlanid = 0;
 285     bool *allowRetry = NULL;
 286
 287     const struct testCase testCases[] = {
 288         { .ifname = "fakeiface-macerror", .rc = -EBUSY },
 289         { .ifname = "fakeiface-altmacerror", .rc = -EINVAL },
 290         { .ifname = "fakeiface-macerror-novlanerror", .rc = -EAGAIN },
 291         { .ifname = "fakeiface-macerror-vlanerror", .rc = -ENODEV },
 292         { .ifname = "fakeiface-nomacerror-novlanerror", .rc = 0 },
 293     };
 294
 295     for (i = 0; i < G_N_ELEMENTS(testCases); ++i) {
 296        rc = virNetDevSetVfConfig(testCases[i].ifname, vfNum, &mac, &vlanid, allowRetry);
 297        if (rc != testCases[i].rc) {
 298            return -1;
 299        }
 300     }
 301     return 0;
 302 }
 303
 304 # endif /* defined(WITH_LIBNL) */
 305
 306 static int
 307 mymain(void)
 308 {
 309     int ret = 0;
 310
 311 # define DO_TEST_LINK(ifname, state, speed) \
 312     do { \
 313         struct testVirNetDevGetLinkInfoData data = {ifname, state, speed}; \
 314         if (virTestRun("Link info: " # ifname, \
 315                        testVirNetDevGetLinkInfo, &data) < 0) \
 316             ret = -1; \
 317     } while (0)
 318
 319     DO_TEST_LINK("eth0", VIR_NETDEV_IF_STATE_UP, 1000);
 320     DO_TEST_LINK("lo", VIR_NETDEV_IF_STATE_UNKNOWN, 0);
 321     DO_TEST_LINK("eth0-broken", VIR_NETDEV_IF_STATE_DOWN, 0);
 322
 323 # if defined(WITH_LIBNL)
 324
 325     if (virTestRun("Set VF MAC", testVirNetDevSetVfMac, NULL) < 0)
 326         ret = -1;
 327     if (virTestRun("Set VF MAC: missing MAC pointer", testVirNetDevSetVfMissingMac, NULL) < 0)
 328         ret = -1;
 329     if (virTestRun("Set VF VLAN", testVirNetDevSetVfVlan, NULL) < 0)
 330         ret = -1;
 331     if (virTestRun("Set VF Config", testVirNetDevSetVfConfig, NULL) < 0)
 332         ret = -1;
 333
 334 # endif /* defined(WITH_LIBNL) */
 335
 336     return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
 337 }
 338
 339 VIR_TEST_MAIN_PRELOAD(mymain, VIR_TEST_MOCK("virnetdev"))
 340 #else
 341 int
 342 main(void)
 343 {
 344     return EXIT_AM_SKIP;
 345 }
 346 #endif