aboutsummaryrefslogtreecommitdiffstats
path: root/package/kernel/linux/modules/virt.mk
diff options
context:
space:
mode:
authorGeorge Amanakis <gamanakis@gmail.com>2019-06-13 00:03:38 -0400
committerKoen Vandeputte <koen.vandeputte@ncentric.com>2019-06-17 10:45:37 +0200
commit1d1dca45eafac27daa3ec292235399c0090e846e (patch)
treea6381f140c933dd0c6639394434ff1f0c26837d3 /package/kernel/linux/modules/virt.mk
parent4fce09c1ec52987a8b4278173b073e37df434cf9 (diff)
downloadupstream-1d1dca45eafac27daa3ec292235399c0090e846e.tar.gz
upstream-1d1dca45eafac27daa3ec292235399c0090e846e.tar.bz2
upstream-1d1dca45eafac27daa3ec292235399c0090e846e.zip
mvebu: fixes commit 4089df4f4b0d
err_free_stats has been deprecated. Replace with err_netdev. Compile-tested on: mvebu Runtime-tested on: mvebu Fixes: 4089df4f4b0d ("kernel: bump 4.14 to 4.14.125 (FS#2305 FS#2297)") Signed-off-by: George Amanakis <gamanakis@gmail.com> [altered hashes] Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com> (cherry picked from commit 1e3800df1808b4a5a977c3a9651958611df51c83)
Diffstat (limited to 'package/kernel/linux/modules/virt.mk')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.25.1) at 2026-02-23 07:35:02 +0000
3'>153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 
/****************************************************************
 * secpol_tool.c
 *
 * Copyright (C) 2005 IBM Corporation
 *
 * Authors:
 * Reiner Sailer <sailer@watson.ibm.com>
 * Stefan Berger <stefanb@watson.ibm.com>
 *
 * 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, version 2 of the
 * License.
 *
 * sHype policy management tool. This code runs in a domain and
 *     manages the Xen security policy by interacting with the
 *     Xen access control module via the privcmd device,
 *     which is translated into a acm_op hypercall into Xen.
 *
 * indent -i4 -kr -nut
 */


#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <string.h>
#include <netinet/in.h>
#include <stdint.h>
#include <xen/acm.h>
#include <xen/acm_ops.h>

#include <xenctrl.h>

#define PERROR(_m, _a...) \
fprintf(stderr, "ERROR: " _m " (%d = %s)\n" , ## _a ,	\
                errno, strerror(errno))

void usage(char *progname)
{
    printf("Usage: %s ACTION\n"
           "ACTION is one of:\n"
           "\t getpolicy\n"
           "\t dumpstats\n"
           "\t loadpolicy <binary policy file>\n", progname);
    exit(-1);
}

/*************************** DUMPS *******************************/

void acm_dump_chinesewall_buffer(void *buf, int buflen, uint16_t chwall_ref)
{

    struct acm_chwall_policy_buffer *cwbuf =
        (struct acm_chwall_policy_buffer *) buf;
    domaintype_t *ssids, *conflicts, *running_types, *conflict_aggregate;
    int i, j;


    if (htonl(cwbuf->policy_code) != ACM_CHINESE_WALL_POLICY) {
        printf("CHINESE WALL POLICY CODE not found ERROR!!\n");
        return;
    }
    printf("\n\nChinese Wall policy:\n");
    printf("====================\n");
    printf("Policy version= %x.\n", ntohl(cwbuf->policy_version));
    printf("Max Types     = %x.\n", ntohl(cwbuf->chwall_max_types));
    printf("Max Ssidrefs  = %x.\n", ntohl(cwbuf->chwall_max_ssidrefs));
    printf("Max ConfSets  = %x.\n", ntohl(cwbuf->chwall_max_conflictsets));
    printf("Ssidrefs Off  = %x.\n", ntohl(cwbuf->chwall_ssid_offset));
    printf("Conflicts Off = %x.\n",
           ntohl(cwbuf->chwall_conflict_sets_offset));
    printf("Runing T. Off = %x.\n",
           ntohl(cwbuf->chwall_running_types_offset));
    printf("C. Agg. Off   = %x.\n",
           ntohl(cwbuf->chwall_conflict_aggregate_offset));
    printf("\nSSID To CHWALL-Type matrix:\n");

    ssids = (domaintype_t *) (buf + ntohl(cwbuf->chwall_ssid_offset));
    for (i = 0; i < ntohl(cwbuf->chwall_max_ssidrefs); i++) {
        printf("\n   ssidref%2x:  ", i);
        for (j = 0; j < ntohl(cwbuf->chwall_max_types); j++)
            printf("%02x ",
                   ntohs(ssids[i * ntohl(cwbuf->chwall_max_types) + j]));
        if (i == chwall_ref)
            printf(" <-- Domain-0");
    }
    printf("\n\nConfict Sets:\n");
    conflicts =
        (domaintype_t *) (buf + ntohl(cwbuf->chwall_conflict_sets_offset));
    for (i = 0; i < ntohl(cwbuf->chwall_max_conflictsets); i++) {
        printf("\n   c-set%2x:    ", i);
        for (j = 0; j < ntohl(cwbuf->chwall_max_types); j++)
            printf("%02x ",
                   ntohs(conflicts
                         [i * ntohl(cwbuf->chwall_max_types) + j]));
    }
    printf("\n");

    printf("\nRunning\nTypes:         ");
    if (ntohl(cwbuf->chwall_running_types_offset)) {
        running_types =
            (domaintype_t *) (buf +
                              ntohl(cwbuf->chwall_running_types_offset));
        for (i = 0; i < ntohl(cwbuf->chwall_max_types); i++) {
            printf("%02x ", ntohs(running_types[i]));
        }
        printf("\n");
    } else {
        printf("Not Reported!\n");
    }
    printf("\nConflict\nAggregate Set: ");
    if (ntohl(cwbuf->chwall_conflict_aggregate_offset)) {
        conflict_aggregate =
            (domaintype_t *) (buf +
                              ntohl(cwbuf->
                                    chwall_conflict_aggregate_offset));
        for (i = 0; i < ntohl(cwbuf->chwall_max_types); i++) {
            printf("%02x ", ntohs(conflict_aggregate[i]));
        }
        printf("\n\n");
    } else {
        printf("Not Reported!\n");
    }
}

void acm_dump_ste_buffer(void *buf, int buflen, uint16_t ste_ref)
{

    struct acm_ste_policy_buffer *stebuf =
        (struct acm_ste_policy_buffer *) buf;
    domaintype_t *ssids;
    int i, j;


    if (ntohl(stebuf->policy_code) != ACM_SIMPLE_TYPE_ENFORCEMENT_POLICY) {
        printf("SIMPLE TYPE ENFORCEMENT POLICY CODE not found ERROR!!\n");
        return;
    }
    printf("\nSimple Type Enforcement policy:\n");
    printf("===============================\n");
    printf("Policy version= %x.\n", ntohl(stebuf->policy_version));
    printf("Max Types     = %x.\n", ntohl(stebuf->ste_max_types));
    printf("Max Ssidrefs  = %x.\n", ntohl(stebuf->ste_max_ssidrefs));
    printf("Ssidrefs Off  = %x.\n", ntohl(stebuf->ste_ssid_offset));
    printf("\nSSID To STE-Type matrix:\n");

    ssids = (domaintype_t *) (buf + ntohl(stebuf->ste_ssid_offset));
    for (i = 0; i < ntohl(stebuf->ste_max_ssidrefs); i++) {
        printf("\n   ssidref%2x: ", i);
        for (j = 0; j < ntohl(stebuf->ste_max_types); j++)
            printf("%02x ",
                   ntohs(ssids[i * ntohl(stebuf->ste_max_types) + j]));
        if (i == ste_ref)
            printf(" <-- Domain-0");
    }
    printf("\n\n");
}

void acm_dump_policy_buffer(void *buf, int buflen,
                            uint16_t chwall_ref, uint16_t ste_ref)
{
    struct acm_policy_buffer *pol = (struct acm_policy_buffer *) buf;
    char *policy_reference_name =
        (buf + ntohl(pol->policy_reference_offset) +
         sizeof(struct acm_policy_reference_buffer));
    printf("\nPolicy dump:\n");
    printf("============\n");
    printf("POLICY REFERENCE = %s.\n", policy_reference_name);
    printf("PolicyVer = %x.\n", ntohl(pol->policy_version));
    printf("XML Vers. = %d.%d\n",
           ntohl(pol->xml_pol_version.major),
           ntohl(pol->xml_pol_version.minor));
    printf("Magic     = %x.\n", ntohl(pol->magic));
    printf("Len       = %x.\n", ntohl(pol->len));
    printf("Primary   = %s (c=%x, off=%x).\n",
           ACM_POLICY_NAME(ntohl(pol->primary_policy_code)),
           ntohl(pol->primary_policy_code),
           ntohl(pol->primary_buffer_offset));
    printf("Secondary = %s (c=%x, off=%x).\n",
           ACM_POLICY_NAME(ntohl(pol->secondary_policy_code)),
           ntohl(pol->secondary_policy_code),
           ntohl(pol->secondary_buffer_offset));
    switch (ntohl(pol->primary_policy_code)) {
    case ACM_CHINESE_WALL_POLICY:
        acm_dump_chinesewall_buffer(buf + ntohl(pol->primary_buffer_offset),
                                    ntohl(pol->len) -
                                    ntohl(pol->primary_buffer_offset),
                                    chwall_ref);
        break;

    case ACM_SIMPLE_TYPE_ENFORCEMENT_POLICY:
        acm_dump_ste_buffer(buf + ntohl(pol->primary_buffer_offset),
                            ntohl(pol->len) -
                            ntohl(pol->primary_buffer_offset),
                            ste_ref);
        break;

    case ACM_NULL_POLICY:
        printf("Primary policy is NULL Policy (n/a).\n");
        break;

    default:
        printf("UNKNOWN POLICY!\n");
    }

    switch (ntohl(pol->secondary_policy_code)) {
    case ACM_CHINESE_WALL_POLICY:
        acm_dump_chinesewall_buffer(buf + ntohl(pol->secondary_buffer_offset),
                                    ntohl(pol->len) -
                                    ntohl(pol->secondary_buffer_offset),
                                    chwall_ref);
        break;

    case ACM_SIMPLE_TYPE_ENFORCEMENT_POLICY:
        acm_dump_ste_buffer(buf + ntohl(pol->secondary_buffer_offset),
                            ntohl(pol->len) -
                            ntohl(pol->secondary_buffer_offset),
                            ste_ref);
        break;

    case ACM_NULL_POLICY:
        printf("Secondary policy is NULL Policy (n/a).\n");
        break;

    default:
        printf("UNKNOWN POLICY!\n");
    }
}

/************************** get dom0 ssidref *****************************/
int acm_get_ssidref(int xc_handle, int domid, uint16_t *chwall_ref,
                    uint16_t *ste_ref)
{
    int ret;
    struct acm_getssid getssid;
    char buf[4096];
    struct acm_ssid_buffer *ssid = (struct acm_ssid_buffer *)buf;
    getssid.interface_version = ACM_INTERFACE_VERSION;
    set_xen_guest_handle(getssid.ssidbuf, buf);
    getssid.ssidbuf_size = sizeof(buf);
    getssid.get_ssid_by = ACM_GETBY_domainid;
    getssid.id.domainid = domid;
    ret = xc_acm_op(xc_handle, ACMOP_getssid, &getssid, sizeof(getssid));
    if (ret == 0) {
        *chwall_ref = ssid->ssidref  & 0xffff;
        *ste_ref    = ssid->ssidref >> 16;
    }
    return ret;
}

/******************************* get policy ******************************/

#define PULL_CACHE_SIZE		8192
uint8_t pull_buffer[PULL_CACHE_SIZE];

int acm_domain_getpolicy(int xc_handle)
{
    struct acm_getpolicy getpolicy;
    int ret;
    uint16_t chwall_ref, ste_ref;

    memset(pull_buffer, 0x00, sizeof(pull_buffer));
    getpolicy.interface_version = ACM_INTERFACE_VERSION;
    set_xen_guest_handle(getpolicy.pullcache, pull_buffer);
    getpolicy.pullcache_size = sizeof(pull_buffer);
    ret = xc_acm_op(xc_handle, ACMOP_getpolicy, &getpolicy, sizeof(getpolicy));
    if (ret >= 0) {
        ret = acm_get_ssidref(xc_handle, 0, &chwall_ref, &ste_ref);
    }

    if (ret < 0) {
        printf("ACM operation failed: errno=%d\n", errno);
        if (errno == EACCES)
            fprintf(stderr, "ACM operation failed -- need to"
                    " rebuild the user-space tool set?\n");
    }

    /* dump policy  */
    acm_dump_policy_buffer(pull_buffer, sizeof(pull_buffer),
                           chwall_ref, ste_ref);

    return ret;
}

/************************ load binary policy ******************************/

int acm_domain_loadpolicy(int xc_handle, const char *filename)
{
    struct stat mystat;
    int ret, fd;
    off_t len;
    uint8_t *buffer;
    uint16_t chwall_ssidref, ste_ssidref;

    if ((ret = stat(filename, &mystat))) {
        printf("File %s not found.\n", filename);
        goto out;
    }

    len = mystat.st_size;
    if ((buffer = malloc(len)) == NULL) {
        ret = -ENOMEM;
        goto out;
    }
    if ((fd = open(filename, O_RDONLY)) <= 0) {
        ret = -ENOENT;
        printf("File %s not found.\n", filename);
        goto free_out;
    }
    ret =acm_get_ssidref(xc_handle, 0, &chwall_ssidref, &ste_ssidref);
    if (ret < 0) {
        goto free_out;
    }
    if (len == read(fd, buffer, len)) {
        struct acm_setpolicy setpolicy;
        /* dump it and then push it down into xen/acm */
        acm_dump_policy_buffer(buffer, len, chwall_ssidref, ste_ssidref);
        setpolicy.interface_version = ACM_INTERFACE_VERSION;
        set_xen_guest_handle(setpolicy.pushcache, buffer);
        setpolicy.pushcache_size = len;
        ret = xc_acm_op(xc_handle, ACMOP_setpolicy, &setpolicy, sizeof(setpolicy));

        if (ret)
            printf
                ("ERROR setting policy.\n");
        else
            printf("Successfully changed policy.\n");

    } else {
        ret = -1;
    }
    close(fd);
  free_out:
    free(buffer);
  out:
    return ret;
}

/************************ dump hook statistics ******************************/
void dump_ste_stats(struct acm_ste_stats_buffer *ste_stats)
{
    printf("STE-Policy Security Hook Statistics:\n");
    printf("ste: event_channel eval_count      = %d\n",
           ntohl(ste_stats->ec_eval_count));
    printf("ste: event_channel denied_count    = %d\n",
           ntohl(ste_stats->ec_denied_count));
    printf("ste: event_channel cache_hit_count = %d\n",
           ntohl(ste_stats->ec_cachehit_count));
    printf("ste:\n");
    printf("ste: grant_table   eval_count      = %d\n",
           ntohl(ste_stats->gt_eval_count));
    printf("ste: grant_table   denied_count    = %d\n",
           ntohl(ste_stats->gt_denied_count));
    printf("ste: grant_table   cache_hit_count = %d\n",
           ntohl(ste_stats->gt_cachehit_count));
}

#define PULL_STATS_SIZE		8192
int acm_domain_dumpstats(int xc_handle)
{
    uint8_t stats_buffer[PULL_STATS_SIZE];
    struct acm_dumpstats dumpstats;
    int ret;
    struct acm_stats_buffer *stats;

    memset(stats_buffer, 0x00, sizeof(stats_buffer));
    dumpstats.interface_version = ACM_INTERFACE_VERSION;
    set_xen_guest_handle(dumpstats.pullcache, stats_buffer);
    dumpstats.pullcache_size = sizeof(stats_buffer);
    ret = xc_acm_op(xc_handle, ACMOP_dumpstats, &dumpstats, sizeof(dumpstats));

    if (ret < 0) {
        printf
            ("ERROR dumping policy stats. Try 'xm dmesg' to see details.\n");
        return ret;
    }
    stats = (struct acm_stats_buffer *) stats_buffer;

    printf("\nPolicy dump:\n");
    printf("============\n");
    printf("Magic     = %x.\n", ntohl(stats->magic));
    printf("Len       = %x.\n", ntohl(stats->len));

    switch (ntohl(stats->primary_policy_code)) {
    case ACM_NULL_POLICY:
        printf("NULL Policy: No statistics apply.\n");
        break;

    case ACM_CHINESE_WALL_POLICY:
        printf("Chinese Wall Policy: No statistics apply.\n");
        break;

    case ACM_SIMPLE_TYPE_ENFORCEMENT_POLICY:
        dump_ste_stats((struct acm_ste_stats_buffer *) (stats_buffer +
                                                        ntohl(stats->
                                                              primary_stats_offset)));
        break;

    default:
        printf("UNKNOWN PRIMARY POLICY ERROR!\n");
    }

    switch (ntohl(stats->secondary_policy_code)) {
    case ACM_NULL_POLICY:
        printf("NULL Policy: No statistics apply.\n");
        break;

    case ACM_CHINESE_WALL_POLICY:
        printf("Chinese Wall Policy: No statistics apply.\n");
        break;

    case ACM_SIMPLE_TYPE_ENFORCEMENT_POLICY:
        dump_ste_stats((struct acm_ste_stats_buffer *) (stats_buffer +
                                                        ntohl(stats->
                                                              secondary_stats_offset)));
        break;

    default:
        printf("UNKNOWN SECONDARY POLICY ERROR!\n");
    }
    return ret;
}

/***************************** main **************************************/

int main(int argc, char **argv)
{

    int xc_handle, ret = 0;

    if (argc < 2)
        usage(argv[0]);

    if ((xc_handle = xc_interface_open()) <= 0) {
        printf("ERROR: Could not open xen privcmd device!\n");
        exit(-1);
    }

    if (!strcmp(argv[1], "getpolicy")) {
        if (argc != 2)
            usage(argv[0]);
        ret = acm_domain_getpolicy(xc_handle);
    } else if (!strcmp(argv[1], "loadpolicy")) {
        if (argc != 3)
            usage(argv[0]);
        ret = acm_domain_loadpolicy(xc_handle, argv[2]);
    } else if (!strcmp(argv[1], "dumpstats")) {
        if (argc != 2)
            usage(argv[0]);
        ret = acm_domain_dumpstats(xc_handle);
    } else
        usage(argv[0]);

    xc_interface_close(xc_handle);
    return ret;
}