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https://www.gnu.org/licenses/gpl-howto.html recommends that the 'If not, see <url>.' phrase be a separate sentence. * tests/securityselinuxhelper.c: Remove doubled line. * tests/securityselinuxtest.c: Likewise. * globally: s/; If/. If/
191 lines
4.2 KiB
C
191 lines
4.2 KiB
C
/*
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* virt-host-validate-common.c: Sanity check helper APIs
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*
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* Copyright (C) 2012 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#include <config.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/utsname.h>
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#include "util.h"
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#include "memory.h"
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#include "virfile.h"
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#include "virt-host-validate-common.h"
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static bool quiet;
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void virHostMsgSetQuiet(bool quietFlag)
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{
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quiet = quietFlag;
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}
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void virHostMsgCheck(const char *prefix,
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const char *format,
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...)
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{
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va_list args;
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char *msg;
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if (quiet)
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return;
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va_start(args, format);
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if (virVasprintf(&msg, format, args) < 0) {
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perror("malloc");
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abort();
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}
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va_end(args);
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fprintf(stdout, _("%6s: Checking %-60s: "), prefix, msg);
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VIR_FREE(msg);
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}
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static bool virHostMsgWantEscape(void)
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{
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static bool detectTty = true;
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static bool wantEscape = false;
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if (detectTty) {
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if (isatty(STDOUT_FILENO))
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wantEscape = true;
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detectTty = false;
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}
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return wantEscape;
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}
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void virHostMsgPass(void)
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{
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if (quiet)
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return;
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if (virHostMsgWantEscape())
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fprintf(stdout, "\033[32m%s\033[0m\n", _("PASS"));
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else
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fprintf(stdout, "%s\n", _("PASS"));
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}
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static const char * failMessages[] = {
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N_("FAIL"),
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N_("WARN"),
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N_("NOTE"),
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};
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verify(ARRAY_CARDINALITY(failMessages) == VIR_HOST_VALIDATE_LAST);
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static const char *failEscapeCodes[] = {
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"\033[31m",
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"\033[33m",
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"\033[34m",
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};
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verify(ARRAY_CARDINALITY(failEscapeCodes) == VIR_HOST_VALIDATE_LAST);
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void virHostMsgFail(virHostValidateLevel level,
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const char *hint)
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{
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if (virHostMsgWantEscape())
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fprintf(stdout, "%s%s\033[0m (%s)\n",
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failEscapeCodes[level], _(failMessages[level]), hint);
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else
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fprintf(stdout, "%s (%s)\n",
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_(failMessages[level]), hint);
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}
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int virHostValidateDevice(const char *hvname,
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const char *dev_name,
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virHostValidateLevel level,
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const char *hint)
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{
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virHostMsgCheck(hvname, "for device %s", dev_name);
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if (access(dev_name, R_OK|W_OK) < 0) {
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virHostMsgFail(level, hint);
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return -1;
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}
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virHostMsgPass();
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return 0;
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}
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bool virHostValidateHasCPUFlag(const char *name)
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{
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FILE *fp = fopen("/proc/cpuinfo", "r");
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bool ret = false;
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if (!fp)
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return false;
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do {
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char line[1024];
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if (!fgets(line, sizeof(line), fp))
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break;
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if (strstr(line, name)) {
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ret = true;
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break;
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}
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} while (1);
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VIR_FORCE_FCLOSE(fp);
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return ret;
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}
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int virHostValidateLinuxKernel(const char *hvname,
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int version,
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virHostValidateLevel level,
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const char *hint)
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{
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struct utsname uts;
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unsigned long thisversion;
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uname(&uts);
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virHostMsgCheck(hvname, _("for Linux >= %d.%d.%d"),
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((version >> 16) & 0xff),
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((version >> 8) & 0xff),
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(version & 0xff));
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if (STRNEQ(uts.sysname, "Linux")) {
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virHostMsgFail(level, hint);
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return -1;
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}
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if (virParseVersionString(uts.release, &thisversion, true) < 0) {
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virHostMsgFail(level, hint);
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return -1;
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}
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if (thisversion < version) {
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virHostMsgFail(level, hint);
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return -1;
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} else {
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virHostMsgPass();
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return 0;
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}
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}
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