1 /* 2 * Copyright (c) International Business Machines Corp., 2003 3 * AUTHOR: Paul Larson <plars (at) linuxtestproject.org> 4 * Copyright (c) 2016 Cyril Hrubis <chrubis (at) suse.cz> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 14 * the GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21 #include <stdlib.h> 22 #include <unistd.h> 23 #include <string.h> 24 #include <limits.h> 25 #include <sys/utsname.h> 26 #include "test.h" 27 28 static char *parse_digit(const char *str, int *d) 29 { 30 unsigned long v; 31 char *end; 32 33 v = strtoul(str, &end, 10); 34 if (str == end) 35 return NULL; 36 37 if (v > INT_MAX) 38 return NULL; 39 40 *d = v; 41 42 if (*end != '.') 43 return NULL; 44 45 return end + 1; 46 } 47 48 void tst_parse_kver(const char *str_kver, int *v1, int *v2, int *v3) 49 { 50 const char *str = str_kver; 51 52 *v1 = 0; 53 *v2 = 0; 54 *v3 = 0; 55 56 if (!(str = parse_digit(str, v1))) 57 goto err; 58 59 if (!(str = parse_digit(str, v2))) 60 goto err; 61 62 /* 63 * We ignore all errors here in order not to fail with versions as 64 * "2.4" or "2.6.18". 65 */ 66 parse_digit(str, v3); 67 68 return; 69 err: 70 tst_resm(TWARN, 71 "Invalid kernel version %s, expected %%d.%%d.%%d", str_kver); 72 } 73 74 int tst_kvercmp(int r1, int r2, int r3) 75 { 76 int a1, a2, a3; 77 int testver, currver; 78 struct utsname uval; 79 80 uname(&uval); 81 tst_parse_kver(uval.release, &a1, &a2, &a3); 82 83 testver = (r1 << 16) + (r2 << 8) + r3; 84 currver = (a1 << 16) + (a2 << 8) + a3; 85 86 return currver - testver; 87 } 88 89 static int tst_kexvcmp(char *tst_exv, char *cur_ver) 90 { 91 int c1 = 0, c2 = 0, c3 = 0, c4 = 0, c5 = 0; 92 int t1 = 0, t2 = 0, t3 = 0, t4 = 0, t5 = 0; 93 int ret; 94 95 sscanf(cur_ver, "%d.%d.%d-%d.%d", &c1, &c2, &c3, &c4, &c5); 96 sscanf(tst_exv, "%d.%d.%d-%d.%d", &t1, &t2, &t3, &t4, &t5); 97 98 if ((ret = c1 - t1)) 99 return ret; 100 if ((ret = c2 - t2)) 101 return ret; 102 if ((ret = c3 - t3)) 103 return ret; 104 if ((ret = c4 - t4)) 105 return ret; 106 107 return c5 - t5; 108 } 109 110 int tst_kvercmp2(int r1, int r2, int r3, struct tst_kern_exv *vers) 111 { 112 int i; 113 struct utsname uval; 114 char *kver; 115 const char *cur_dist_name = NULL; 116 117 uname(&uval); 118 kver = uval.release; 119 if (strstr(kver, ".el5uek")) { 120 cur_dist_name = "OL5UEK"; 121 } else if (strstr(kver, ".el5")) { 122 cur_dist_name = "RHEL5"; 123 } else if (strstr(kver, ".el6uek")) { 124 cur_dist_name = "OL6UEK"; 125 } else if (strstr(kver, ".el6")) { 126 cur_dist_name = "RHEL6"; 127 } 128 129 if (cur_dist_name == NULL) 130 return tst_kvercmp(r1, r2, r3); 131 132 for (i = 0; vers[i].dist_name; i++) { 133 if (!strcmp(vers[i].dist_name, cur_dist_name)) { 134 tst_resm(TINFO, "Detected %s using kernel version %s", 135 cur_dist_name, kver); 136 return tst_kexvcmp(vers[i].extra_ver, kver); 137 } 138 } 139 140 return tst_kvercmp(r1, r2, r3); 141 } 142
