diff options
Diffstat (limited to 'src/kernel/tests/lib/tst_kvercmp.c')
| -rw-r--r-- | src/kernel/tests/lib/tst_kvercmp.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/kernel/tests/lib/tst_kvercmp.c b/src/kernel/tests/lib/tst_kvercmp.c new file mode 100644 index 0000000..5d56e30 --- /dev/null +++ b/src/kernel/tests/lib/tst_kvercmp.c @@ -0,0 +1,195 @@ +/* + * Copyright (c) International Business Machines Corp., 2003 + * AUTHOR: Paul Larson <plars@linuxtestproject.org> + * Copyright (c) 2016 Cyril Hrubis <chrubis@suse.cz> + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <ctype.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <limits.h> +#include <sys/utsname.h> +#include "test.h" + +#define OSRELEASE_PATH "/etc/os-release" + +static char *parse_digit(const char *str, int *d) +{ + unsigned long v; + char *end; + + v = strtoul(str, &end, 10); + if (str == end) + return NULL; + + if (v > INT_MAX) + return NULL; + + *d = v; + + return end; +} + +int tst_parse_kver(const char *str_kver, int *v1, int *v2, int *v3) +{ + const char *str = str_kver; + + *v1 = 0; + *v2 = 0; + *v3 = 0; + + if (!(str = parse_digit(str, v1))) + return 1; + + if (*(str++) != '.') + return 1; + + if (!(str = parse_digit(str, v2))) + return 1; + + /* + * Check for a short version e.g '2.4' + */ + if (*str == ' ' || *str == '\0') + return 0; + + if (*(str++) != '.') + return 1; + + /* + * Ignore rest of the string in order not to break on versions as + * 4.8.1-52-default. + */ + if (!parse_digit(str, v3)) + return 1; + + return 0; +} + +int tst_kvcmp(const char *cur_kver, int r1, int r2, int r3) +{ + int a1, a2, a3; + int testver, currver; + + if (tst_parse_kver(cur_kver, &a1, &a2, &a3)) { + tst_resm(TWARN, + "Invalid kernel version %s, expected %%d.%%d.%%d", + cur_kver); + } + + testver = (r1 << 16) + (r2 << 8) + r3; + currver = (a1 << 16) + (a2 << 8) + a3; + + return currver - testver; +} + +int tst_kvercmp(int r1, int r2, int r3) +{ + struct utsname uval; + + uname(&uval); + + return tst_kvcmp(uval.release, r1, r2, r3); +} + +int tst_kvexcmp(const char *tst_exv, const char *cur_ver) +{ + int c1 = 0, c2 = 0, c3 = 0, c4 = 0, c5 = 0; + int t1 = 0, t2 = 0, t3 = 0, t4 = 0, t5 = 0; + int ret; + + sscanf(cur_ver, "%d.%d.%d-%d.%d", &c1, &c2, &c3, &c4, &c5); + sscanf(tst_exv, "%d.%d.%d-%d.%d", &t1, &t2, &t3, &t4, &t5); + + if ((ret = c1 - t1)) + return ret; + if ((ret = c2 - t2)) + return ret; + if ((ret = c3 - t3)) + return ret; + if ((ret = c4 - t4)) + return ret; + + return c5 - t5; +} + +const char *tst_kvcmp_distname(const char *kver) +{ + static char distname[64]; + char *ret = distname; + char *p = distname; + + if (strstr(kver, ".el5uek")) + return "OL5UEK"; + + if (strstr(kver, ".el5")) + return "RHEL5"; + + if (strstr(kver, ".el6uek")) + return "OL6UEK"; + + if (strstr(kver, ".el6")) + return "RHEL6"; + + if (access(OSRELEASE_PATH, F_OK) != -1) { + SAFE_FILE_LINES_SCANF(NULL, OSRELEASE_PATH, "ID=%s", distname); + + if (p[0] == '"') { + ret = distname + 1; + p = ret; + } + + while (*p) { + if (*p == '"') { + *p = 0; + break; + } + *p = toupper((unsigned char)*p); + p++; + } + + return ret; + } + + return NULL; +} + +int tst_kvercmp2(int r1, int r2, int r3, struct tst_kern_exv *vers) +{ + int i; + const char *kver; + struct utsname uval; + const char *cur_dist_name; + + uname(&uval); + kver = uval.release; + cur_dist_name = tst_kvcmp_distname(kver); + + if (cur_dist_name == NULL) + return tst_kvercmp(r1, r2, r3); + + for (i = 0; vers[i].dist_name; i++) { + if (!strcmp(vers[i].dist_name, cur_dist_name)) { + tst_resm(TINFO, "Detected %s using kernel version %s", + cur_dist_name, kver); + return tst_kvexcmp(vers[i].extra_ver, kver); + } + } + + return tst_kvcmp(kver, r1, r2, r3); +} |